Merge commit '775861ea94d00672c9e868db329073afd699b994' into tmp_auto_upgrade
Update AFLpp repo with upstream using external_updater
Test: Build afl-fuzz and run an AFL fuzzer
Bug: 331246566
Change-Id: Ia6ee9cb4adea9d9912fd86d86e1b92123fe44127
diff --git a/.custom-format.py b/.custom-format.py
index 1d5c883..c8075ac 100755
--- a/.custom-format.py
+++ b/.custom-format.py
@@ -24,7 +24,7 @@
# string_re = re.compile('(\\"(\\\\.|[^"\\\\])*\\")') # TODO: for future use
-CURRENT_LLVM = os.getenv('LLVM_VERSION', 15)
+CURRENT_LLVM = os.getenv('LLVM_VERSION', 17)
CLANG_FORMAT_BIN = os.getenv("CLANG_FORMAT_BIN", "")
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fdf618b..ed382fb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,20 +20,18 @@
AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES: 1
steps:
- uses: actions/checkout@v3
+ - name: update
+ run: sudo apt-get update && sudo apt-get upgrade -y
- name: debug
run: apt-cache search plugin-dev | grep gcc-; echo; apt-cache search clang-format- | grep clang-format-
- - name: update
- run: sudo apt-get update
- # && sudo apt-get upgrade -y
- name: install packages
- #run: sudo apt-get install -y -m -f --install-suggests build-essential git libtool libtool-bin automake bison libglib2.0-0 clang llvm-dev libc++-dev findutils libcmocka-dev python3-dev python3-setuptools ninja-build python3-pip
- run: sudo apt-get install -y -m -f build-essential git libtool libtool-bin automake flex bison libglib2.0-0 clang llvm-dev libc++-dev findutils libcmocka-dev python3-dev python3-setuptools ninja-build python3-pip
+ run: sudo apt-get install -y -m -f build-essential gcc-10 g++-10 git libtool libtool-bin automake flex bison libglib2.0-0 clang-12 llvm-12-dev libc++-dev findutils libcmocka-dev python3-dev python3-setuptools ninja-build python3-pip gcc-10-plugin-dev
- name: compiler installed
run: gcc -v; echo; clang -v
- name: install gcc plugin
run: sudo apt-get install -y -m -f --install-suggests $(readlink /usr/bin/gcc)-plugin-dev
- name: build afl++
- run: make distrib ASAN_BUILD=1 NO_NYX=1
+ run: export NO_NYX=1; export ASAN_BUILD=1; export LLVM_CONFIG=llvm-config-12; make ASAN_BUILD=1 NO_NYX=1 LLVM_CONFIG=llvm-config-12 distrib
- name: run tests
run: sudo -E ./afl-system-config; make tests
# macos:
diff --git a/.gitignore b/.gitignore
index c01750e..f76a86f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@
.test
.test2
.vscode
+afl-addseeds.8
afl-analyze
afl-analyze.8
afl-as
diff --git a/Dockerfile b/Dockerfile
index 1b5ffd2..99998a6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,8 +16,8 @@
ENV NO_NYX=1
### Only change these if you know what you are doing:
-# LLVM 15 does not look good so we stay at 14 to still have LTO
-ENV LLVM_VERSION=14
+# Current recommended LLVM version is 16
+ENV LLVM_VERSION=16
# GCC 12 is producing compile errors for some targets so we stay at GCC 11
ENV GCC_VERSION=11
@@ -42,7 +42,7 @@
python3 python3-dev python3-pip python-is-python3 \
libtool libtool-bin libglib2.0-dev \
apt-transport-https gnupg dialog \
- gnuplot-nox libpixman-1-dev \
+ gnuplot-nox libpixman-1-dev bc \
gcc-${GCC_VERSION} g++-${GCC_VERSION} gcc-${GCC_VERSION}-plugin-dev gdb lcov \
clang-${LLVM_VERSION} clang-tools-${LLVM_VERSION} libc++1-${LLVM_VERSION} \
libc++-${LLVM_VERSION}-dev libc++abi1-${LLVM_VERSION} libc++abi-${LLVM_VERSION}-dev \
@@ -88,7 +88,7 @@
RUN sed -i.bak 's/^ -/ /g' GNUmakefile && \
make clean && make distrib && \
- ([ "${TEST_BUILD}" ] || (make install && make clean)) && \
+ ([ "${TEST_BUILD}" ] || (make install)) && \
mv GNUmakefile.bak GNUmakefile
RUN echo "set encoding=utf-8" > /root/.vimrc && \
diff --git a/GNUmakefile b/GNUmakefile
index 55676d9..283c57c 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -32,7 +32,7 @@
# PROGS intentionally omit afl-as, which gets installed elsewhere.
PROGS = afl-fuzz afl-showmap afl-tmin afl-gotcpu afl-analyze
-SH_PROGS = afl-plot afl-cmin afl-cmin.bash afl-whatsup afl-system-config afl-persistent-config afl-cc
+SH_PROGS = afl-plot afl-cmin afl-cmin.bash afl-whatsup afl-addseeds afl-system-config afl-persistent-config afl-cc
MANPAGES=$(foreach p, $(PROGS) $(SH_PROGS), $(p).8) afl-as.8
ASAN_OPTIONS=detect_leaks=0
@@ -45,6 +45,10 @@
override CFLAGS_OPT += -DNO_SPLICING
endif
+ifdef NO_UTF
+ override CFLAGS_OPT += -DFANCY_BOXES_NO_UTF
+endif
+
ifdef ASAN_BUILD
$(info Compiling ASAN version of binaries)
override CFLAGS += $(ASAN_CFLAGS)
@@ -62,6 +66,10 @@
override LDFLAGS += -fsanitize=memory
endif
+ifdef CODE_COVERAGE
+ override CFLAGS += -D__AFL_CODE_COVERAGE=1
+endif
+
ifeq "$(findstring android, $(shell $(CC) --version 2>/dev/null))" ""
ifeq "$(shell echo 'int main() {return 0; }' | $(CC) $(CFLAGS) -Werror -x c - -flto=full -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
CFLAGS_FLTO ?= -flto=full
@@ -91,9 +99,9 @@
#ifeq "$(HAVE_MARCHNATIVE)" "1"
# SPECIAL_PERFORMANCE += -march=native
#endif
- ifndef DEBUG
- CFLAGS_OPT += -D_FORTIFY_SOURCE=1
- endif
+ #ifndef DEBUG
+ # CFLAGS_OPT += -D_FORTIFY_SOURCE=1
+ #endif
else
# On some odd MacOS system configurations, the Xcode sdk path is not set correctly
SDK_LD = -L$(shell xcrun --show-sdk-path)/usr/lib
@@ -255,17 +263,17 @@
ifneq "$(findstring FreeBSD, $(SYS))" ""
override CFLAGS += -pthread
- override LDFLAGS += -lpthread
+ override LDFLAGS += -lpthread -lm
endif
ifneq "$(findstring NetBSD, $(SYS))" ""
override CFLAGS += -pthread
- override LDFLAGS += -lpthread
+ override LDFLAGS += -lpthread -lm
endif
ifneq "$(findstring OpenBSD, $(SYS))" ""
override CFLAGS += -pthread
- override LDFLAGS += -lpthread
+ override LDFLAGS += -lpthread -lm
endif
COMM_HDR = include/alloc-inl.h include/config.h include/debug.h include/types.h
@@ -318,7 +326,7 @@
@echo Build Summary:
@test -e afl-fuzz && echo "[+] afl-fuzz and supporting tools successfully built" || echo "[-] afl-fuzz could not be built, please set CC to a working compiler"
@test -e afl-llvm-pass.so && echo "[+] LLVM basic mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-11 and clang-11 or newer, see docs/INSTALL.md"
- @test -e SanitizerCoveragePCGUARD.so && echo "[+] LLVM mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-11 and clang-11 or newer, see docs/INSTALL.md"
+ @test -e SanitizerCoveragePCGUARD.so && echo "[+] LLVM mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-13 and clang-13 or newer, see docs/INSTALL.md"
@test -e SanitizerCoverageLTO.so && echo "[+] LLVM LTO mode successfully built" || echo "[-] LLVM LTO mode could not be built, it is optional, if you want it, please install LLVM and LLD 11+. More information at instrumentation/README.lto.md on how to build it"
ifneq "$(SYS)" "Darwin"
@test -e afl-gcc-pass.so && echo "[+] gcc_mode successfully built" || echo "[-] gcc_mode could not be built, it is optional, install gcc-VERSION-plugin-dev to enable this"
@@ -391,6 +399,7 @@
@echo INTROSPECTION - compile afl-fuzz with mutation introspection
@echo NO_PYTHON - disable python support
@echo NO_SPLICING - disables splicing mutation in afl-fuzz, not recommended for normal fuzzing
+ @echo "NO_UTF - do not use UTF-8 for line rendering in status screen (fallback to G1 box drawing, of vanilla AFL)"
@echo NO_NYX - disable building nyx mode dependencies
@echo "NO_CORESIGHT - disable building coresight (arm64 only)"
@echo NO_UNICORN_ARM64 - disable building unicorn on arm64
@@ -644,16 +653,16 @@
# -$(MAKE) -C utils/plot_ui
-$(MAKE) -C frida_mode
ifneq "$(SYS)" "Darwin"
- ifeq "$(ARCH)" "aarch64"
- ifndef NO_CORESIGHT
+ifeq "$(ARCH)" "aarch64"
+ ifndef NO_CORESIGHT
-$(MAKE) -C coresight_mode
- endif
endif
- ifeq "$(SYS)" "Linux"
- ifndef NO_NYX
+endif
+ifeq "$(SYS)" "Linux"
+ifndef NO_NYX
-cd nyx_mode && ./build_nyx_support.sh
- endif
- endif
+endif
+endif
-cd qemu_mode && sh ./build_qemu_support.sh
ifeq "$(ARCH)" "aarch64"
ifndef NO_UNICORN_ARM64
@@ -740,7 +749,7 @@
@echo Build Summary:
@test -e afl-fuzz && echo "[+] afl-fuzz and supporting tools successfully built" || echo "[-] afl-fuzz could not be built, please set CC to a working compiler"
@test -e afl-llvm-pass.so && echo "[+] LLVM basic mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-11 and clang-11 or newer, see docs/INSTALL.md"
- @test -e SanitizerCoveragePCGUARD.so && echo "[+] LLVM mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-11 and clang-11 or newer, see docs/INSTALL.md"
+ @test -e SanitizerCoveragePCGUARD.so && echo "[+] LLVM mode successfully built" || echo "[-] LLVM mode could not be built, please install at least llvm-13 and clang-13 or newer, see docs/INSTALL.md"
@test -e SanitizerCoverageLTO.so && echo "[+] LLVM LTO mode successfully built" || echo "[-] LLVM LTO mode could not be built, it is optional, if you want it, please install LLVM 11-14. More information at instrumentation/README.lto.md on how to build it"
ifneq "$(SYS)" "Darwin"
test -e afl-gcc-pass.so && echo "[+] gcc_mode successfully built" || echo "[-] gcc_mode could not be built, it is optional, install gcc-VERSION-plugin-dev to enable this"
@@ -777,7 +786,7 @@
@rm -f $${DESTDIR}$(BIN_PATH)/afl-plot.sh
@rm -f $${DESTDIR}$(BIN_PATH)/afl-as
@rm -f $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt.o $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt-32.o $${DESTDIR}$(HELPER_PATH)/afl-llvm-rt-64.o $${DESTDIR}$(HELPER_PATH)/afl-gcc-rt.o
- @for i in afl-llvm-dict2file.so afl-llvm-lto-instrumentlist.so afl-llvm-pass.so cmplog-instructions-pass.so cmplog-routines-pass.so cmplog-switches-pass.so compare-transform-pass.so libcompcov.so libdislocator.so libnyx.so libqasan.so libtokencap.so SanitizerCoverageLTO.so SanitizerCoveragePCGUARD.so split-compares-pass.so split-switches-pass.so; do echo rm -fv $${DESTDIR}$(HELPER_PATH)/$${i}; done
+ @for i in afl-llvm-dict2file.so afl-llvm-lto-instrumentlist.so afl-llvm-pass.so cmplog-instructions-pass.so cmplog-routines-pass.so cmplog-switches-pass.so compare-transform-pass.so libcompcov.so libdislocator.so libnyx.so libqasan.so libtokencap.so SanitizerCoverageLTO.so SanitizerCoveragePCGUARD.so split-compares-pass.so split-switches-pass.so injection-pass.so; do echo rm -fv $${DESTDIR}$(HELPER_PATH)/$${i}; done
install -m 755 $(PROGS) $(SH_PROGS) $${DESTDIR}$(BIN_PATH)
@if [ -f afl-qemu-trace ]; then install -m 755 afl-qemu-trace $${DESTDIR}$(BIN_PATH); fi
@if [ -f utils/plot_ui/afl-plot-ui ]; then install -m 755 utils/plot_ui/afl-plot-ui $${DESTDIR}$(BIN_PATH); fi
@@ -808,11 +817,12 @@
install -m 644 docs/*.md $${DESTDIR}$(DOC_PATH)
cp -r testcases/ $${DESTDIR}$(MISC_PATH)
cp -r dictionaries/ $${DESTDIR}$(MISC_PATH)
+ cp injections.dic $${DESTDIR}$(MISC_PATH)
.PHONY: uninstall
uninstall:
- -cd $${DESTDIR}$(BIN_PATH) && rm -f $(PROGS) $(SH_PROGS) afl-cs-proxy afl-qemu-trace afl-plot-ui afl-fuzz-document afl-network-server afl-g* afl-plot.sh afl-as afl-ld-lto afl-c* afl-lto*
- -cd $${DESTDIR}$(HELPER_PATH) && rm -f afl-g*.*o afl-llvm-*.*o afl-compiler-*.*o libdislocator.so libtokencap.so libcompcov.so libqasan.so afl-frida-trace.so libnyx.so socketfuzz*.so argvfuzz*.so libAFLDriver.a libAFLQemuDriver.a as afl-as SanitizerCoverage*.so compare-transform-pass.so cmplog-*-pass.so split-*-pass.so dynamic_list.txt
+ -cd $${DESTDIR}$(BIN_PATH) && rm -f $(PROGS) $(SH_PROGS) afl-cs-proxy afl-qemu-trace afl-plot-ui afl-fuzz-document afl-network-client afl-network-server afl-g* afl-plot.sh afl-as afl-ld-lto afl-c* afl-lto*
+ -cd $${DESTDIR}$(HELPER_PATH) && rm -f afl-g*.*o afl-llvm-*.*o afl-compiler-*.*o libdislocator.so libtokencap.so libcompcov.so libqasan.so afl-frida-trace.so libnyx.so socketfuzz*.so argvfuzz*.so libAFLDriver.a libAFLQemuDriver.a as afl-as SanitizerCoverage*.so compare-transform-pass.so cmplog-*-pass.so split-*-pass.so dynamic_list.txt injections.dic
-rm -rf $${DESTDIR}$(MISC_PATH)/testcases $${DESTDIR}$(MISC_PATH)/dictionaries
-sh -c "ls docs/*.md | sed 's|^docs/|$${DESTDIR}$(DOC_PATH)/|' | xargs rm -f"
-cd $${DESTDIR}$(MAN_PATH) && rm -f $(MANPAGES)
diff --git a/GNUmakefile.gcc_plugin b/GNUmakefile.gcc_plugin
index 41face4..8f06792 100644
--- a/GNUmakefile.gcc_plugin
+++ b/GNUmakefile.gcc_plugin
@@ -11,7 +11,7 @@
# from Laszlo Szekeres.
#
# Copyright 2015 Google Inc. All rights reserved.
-# Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+# Copyright 2019-2024 AFLplusplus Project. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@@ -28,15 +28,17 @@
VERSION = $(shell grep '^$(HASH)define VERSION ' ./config.h | cut -d '"' -f2)
-CFLAGS ?= -O3 -g -funroll-loops -D_FORTIFY_SOURCE=1
+CFLAGS ?= -O3 -g -funroll-loops
+# -D_FORTIFY_SOURCE=1
CFLAGS_SAFE := -Wall -Iinclude -Wno-pointer-sign \
-DAFL_PATH=\"$(HELPER_PATH)\" -DBIN_PATH=\"$(BIN_PATH)\" \
-DGCC_VERSION=\"$(GCCVER)\" -DGCC_BINDIR=\"$(GCCBINDIR)\" \
-Wno-unused-function
override CFLAGS += $(CFLAGS_SAFE)
-CXXFLAGS ?= -O3 -g -funroll-loops -D_FORTIFY_SOURCE=1
-CXXEFLAGS := $(CXXFLAGS) -Wall -std=c++11
+CXXFLAGS ?= -O3 -g -funroll-loops
+# -D_FORTIFY_SOURCE=1
+CXXEFLAGS := $(CXXFLAGS) $(CPPFLAGS) -Wall -std=c++11
CC ?= gcc
CXX ?= g++
@@ -59,7 +61,7 @@
endif
PLUGIN_BASE = "$(shell $(CC) -print-file-name=plugin)"
-PLUGIN_FLAGS = -fPIC -fno-rtti -I$(PLUGIN_BASE)/include -I$(PLUGIN_BASE)
+PLUGIN_FLAGS = -fPIC -fno-rtti -fno-exceptions -I$(PLUGIN_BASE)/include -I$(PLUGIN_BASE)
HASH=\#
GCCVER = $(shell $(CC) --version 2>/dev/null | awk 'NR == 1 {print $$NF}')
diff --git a/GNUmakefile.llvm b/GNUmakefile.llvm
index 6ffac68..ec8fefe 100644
--- a/GNUmakefile.llvm
+++ b/GNUmakefile.llvm
@@ -45,12 +45,13 @@
LLVMVER = $(shell $(LLVM_CONFIG) --version 2>/dev/null | sed 's/git//' | sed 's/svn//' )
LLVM_MAJOR = $(shell $(LLVM_CONFIG) --version 2>/dev/null | sed 's/\..*//' )
LLVM_MINOR = $(shell $(LLVM_CONFIG) --version 2>/dev/null | sed 's/.*\.//' | sed 's/git//' | sed 's/svn//' | sed 's/ .*//' )
-LLVM_UNSUPPORTED = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^[0-2]\.|^3.[0-7]\.' && echo 1 || echo 0 )
-LLVM_TOO_NEW = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[7-9]' && echo 1 || echo 0 )
+LLVM_UNSUPPORTED = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^[0-2]\.|^3.[0-8]\.' && echo 1 || echo 0 )
+LLVM_TOO_NEW = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[8-9]|^2[0-9]' && echo 1 || echo 0 )
+LLVM_TOO_OLD = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^[1-9]\.|^1[012]\.' && echo 1 || echo 0 )
LLVM_NEW_API = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[0-9]' && echo 1 || echo 0 )
LLVM_NEWER_API = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[6-9]' && echo 1 || echo 0 )
LLVM_13_OK = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[3-9]' && echo 1 || echo 0 )
-LLVM_HAVE_LTO = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[1-9]' && echo 1 || echo 0 )
+LLVM_HAVE_LTO = $(shell $(LLVM_CONFIG) --version 2>/dev/null | grep -E -q '^1[2-9]' && echo 1 || echo 0 )
LLVM_BINDIR = $(shell $(LLVM_CONFIG) --bindir 2>/dev/null)
LLVM_LIBDIR = $(shell $(LLVM_CONFIG) --libdir 2>/dev/null)
LLVM_STDCXX = gnu++11
@@ -69,6 +70,12 @@
$(warning you are using an in-development llvm version - this might break llvm_mode!)
endif
+ifeq "$(LLVM_TOO_OLD)" "1"
+ $(warning you are using an outdated LLVM version! Please use at least LLVM 13 or newer!)
+ $(shell sleep 2)
+endif
+
+# No switching the meaning of LLVM_TOO_OLD
LLVM_TOO_OLD=1
ifeq "$(LLVM_MAJOR)" "9"
@@ -87,18 +94,13 @@
LLVM_STDCXX = c++17
endif
-ifeq "$(LLVM_TOO_OLD)" "1"
- $(info [!] llvm_mode detected an old version of llvm, upgrade to at least 9 or preferable 11!)
- $(shell sleep 1)
-endif
-
ifeq "$(LLVM_HAVE_LTO)" "1"
- $(info [+] llvm_mode detected llvm 11+, enabling afl-lto LTO implementation)
+ $(info [+] llvm_mode detected llvm 12+, enabling afl-lto LTO implementation)
LLVM_LTO = 1
endif
ifeq "$(LLVM_LTO)" "0"
- $(info [+] llvm_mode detected llvm < 11, afl-lto LTO will not be build.)
+ $(info [+] llvm_mode detected llvm < 12, afl-lto LTO will not be build.)
endif
ifeq "$(LLVM_APPLE_XCODE)" "1"
@@ -260,7 +262,8 @@
AFL_CLANG_DEBUG_PREFIX =
endif
-CFLAGS ?= -O3 -funroll-loops -fPIC -D_FORTIFY_SOURCE=1
+CFLAGS ?= -O3 -funroll-loops -fPIC
+# -D_FORTIFY_SOURCE=1
CFLAGS_SAFE := -Wall -g -Wno-cast-qual -Wno-variadic-macros -Wno-pointer-sign \
-I ./include/ -I ./instrumentation/ \
-DAFL_PATH=\"$(HELPER_PATH)\" -DBIN_PATH=\"$(BIN_PATH)\" \
@@ -285,7 +288,8 @@
$(info Compile option AFL_TRACE_PC is deprecated, just set AFL_LLVM_INSTRUMENT=PCGUARD to activate when compiling targets )
endif
-CXXFLAGS ?= -O3 -funroll-loops -fPIC -D_FORTIFY_SOURCE=1
+CXXFLAGS ?= -O3 -funroll-loops -fPIC
+# -D_FORTIFY_SOURCE=1
override CXXFLAGS += -Wall -g -I ./include/ \
-DVERSION=\"$(VERSION)\" -Wno-variadic-macros -Wno-deprecated-copy-with-dtor \
-DLLVM_MINOR=$(LLVM_MINOR) -DLLVM_MAJOR=$(LLVM_MAJOR)
@@ -296,7 +300,7 @@
ifneq "$(LLVM_CONFIG)" ""
CLANG_CFL += -I$(shell dirname $(LLVM_CONFIG))/../include
endif
-CLANG_CPPFL = `$(LLVM_CONFIG) --cxxflags` -fno-rtti -fPIC $(CXXFLAGS) -Wno-deprecated-declarations
+CLANG_CPPFL = `$(LLVM_CONFIG) --cxxflags` -fno-rtti -fno-exceptions -fPIC $(CXXFLAGS) $(CPPFLAGS) -Wno-deprecated-declarations
CLANG_LFL = `$(LLVM_CONFIG) --ldflags` $(LDFLAGS)
# wasm fuzzing: disable thread-local storage and unset LLVM debug flag
@@ -337,7 +341,7 @@
endif
PROGS_ALWAYS = ./afl-cc ./afl-compiler-rt.o ./afl-compiler-rt-32.o ./afl-compiler-rt-64.o
-PROGS = $(PROGS_ALWAYS) ./afl-llvm-pass.so ./SanitizerCoveragePCGUARD.so ./split-compares-pass.so ./split-switches-pass.so ./cmplog-routines-pass.so ./cmplog-instructions-pass.so ./cmplog-switches-pass.so ./afl-llvm-dict2file.so ./compare-transform-pass.so ./afl-ld-lto ./afl-llvm-lto-instrumentlist.so ./SanitizerCoverageLTO.so
+PROGS = $(PROGS_ALWAYS) ./afl-llvm-pass.so ./SanitizerCoveragePCGUARD.so ./split-compares-pass.so ./split-switches-pass.so ./cmplog-routines-pass.so ./cmplog-instructions-pass.so ./cmplog-switches-pass.so ./afl-llvm-dict2file.so ./compare-transform-pass.so ./afl-ld-lto ./afl-llvm-lto-instrumentlist.so ./SanitizerCoverageLTO.so ./injection-pass.so
# If prerequisites are not given, warn, do not build anything, and exit with code 0
ifeq "$(LLVMVER)" ""
@@ -465,6 +469,9 @@
afl-llvm-dict2file.so: instrumentation/afl-llvm-dict2file.so.cc instrumentation/afl-llvm-common.o | test_deps
$(CXX) $(CLANG_CPPFL) -shared $< -o $@ $(CLANG_LFL) instrumentation/afl-llvm-common.o
+./injection-pass.so: instrumentation/injection-pass.cc instrumentation/afl-llvm-common.o | test_deps
+ $(CXX) $(CLANG_CPPFL) -shared $< -o $@ $(CLANG_LFL) instrumentation/afl-llvm-common.o
+
.PHONY: document
document:
$(CLANG_BIN) -D_AFL_DOCUMENT_MUTATIONS $(CFLAGS_SAFE) $(CPPFLAGS) $(CLANG_CFL) -O3 -Wno-unused-result -fPIC -c instrumentation/afl-compiler-rt.o.c -o ./afl-compiler-rt.o
diff --git a/METADATA b/METADATA
index a15779f..25933ca 100644
--- a/METADATA
+++ b/METADATA
@@ -1,24 +1,21 @@
+# This project was upgraded with external_updater.
+# Usage: tools/external_updater/updater.sh update external/AFLplusplus
+# For more info, check https://cs.android.com/android/platform/superproject/+/main:tools/external_updater/README.md
name: "AFLplusplus"
-description:
- "AFLplusplus (american fuzzy lop plus plus) is a fuzzer"
-
-third_party: {
- type: PACKAGE,
- url {
- type: HOMEPAGE
- value: "https://aflplus.plus"
- }
- url {
- type: GIT
- value: "https://github.com/AFLplusplus/AFLplusplus"
- }
-license_type: NOTICE
- version: "26cbc1e99337da4dc82c7c827dc2dac0a3733dc2"
- last_upgrade_date {
- year: 2023
- month: 6
- day: 6
- }
+description: "AFLplusplus (american fuzzy lop plus plus) is a fuzzer"
+third_party {
+ license_type: NOTICE
+ last_upgrade_date {
+ year: 2024
+ month: 3
+ day: 29
+ }
+ type: PACKAGE
+ homepage: "https://aflplus.plus"
+ identifier {
+ type: "Git"
+ value: "https://github.com/AFLplusplus/AFLplusplus"
+ version: "775861ea94d00672c9e868db329073afd699b994"
+ }
}
-
diff --git a/README.md b/README.md
index 0208a9f..f713e97 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,9 @@
<img align="right" src="https://raw.githubusercontent.com/AFLplusplus/Website/main/static/aflpp_bg.svg" alt="AFL++ logo" width="250" heigh="250">
-Release version: [4.06c](https://github.com/AFLplusplus/AFLplusplus/releases)
+Release version: [4.10c](https://github.com/AFLplusplus/AFLplusplus/releases)
-GitHub version: 4.07a
+GitHub version: 4.10c
Repository:
[https://github.com/AFLplusplus/AFLplusplus](https://github.com/AFLplusplus/AFLplusplus)
@@ -12,12 +12,13 @@
AFL++ is maintained by:
* Marc "van Hauser" Heuse <mh@mh-sec.de>
-* Andrea Fioraldi <andreafioraldi@gmail.com>
* Dominik Maier <mail@dmnk.co>
-* Heiko "hexcoder-" Eißfeldt <heiko.eissfeldt@hexco.de>
+* Andrea Fioraldi <andreafioraldi@gmail.com>
+* Heiko "hexcoder-" Eissfeldt <heiko.eissfeldt@hexco.de>
+* frida_mode is maintained by @Worksbutnottested
* Documentation: Jana Aydinbas <jana.aydinbas@gmail.com>
-Originally developed by Michał "lcamtuf" Zalewski.
+Originally developed by Michal "lcamtuf" Zalewski.
AFL++ is a superior fork to Google's AFL - more speed, more and better
mutations, more and better instrumentation, custom module support, etc.
@@ -228,7 +229,7 @@
Thomas Rooijakkers David Carlier
Ruben ten Hove Joey Jiao
fuzzah @intrigus-lgtm
- Yaakov Saxon
+ Yaakov Saxon Sergej Schumilo
```
</details>
diff --git a/TODO.md b/TODO.md
index 2b7e8fc..f2e3963 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,11 +1,25 @@
# TODO list for AFL++
+## Must
+
+ - UI revamp
+ - hardened_usercopy=0 page_alloc.shuffle=0
+ - add value_profile but only enable after 15 minutes without finds
+ - cmplog max len, cmplog max items envs?
+ - adapt MOpt to new mutation engine
+ - Update afl->pending_not_fuzzed for MOpt
+ - cmplog rtn sanity check on fixed length? currently we ignore the length
+ - afl-showmap -f support
+ - afl-fuzz multicore wrapper script
+ - when trimming then perform crash detection
+ - problem: either -L0 and/or -p mmopt results in zero new coverage
+
+
## Should
- - test cmplog for less than 16bit
+ - afl-crash-analysis
- support persistent and deferred fork server in afl-showmap?
- better autodetection of shifting runtime timeout values
- - Update afl->pending_not_fuzzed for MOpt
- afl-plot to support multiple plot_data
- parallel builds for source-only targets
- get rid of check_binary, replace with more forkserver communication
@@ -24,8 +38,7 @@
- non colliding instrumentation
- rename qemu specific envs to AFL_QEMU (AFL_ENTRYPOINT, AFL_CODE_START/END,
AFL_COMPCOV_LEVEL?)
- - add AFL_QEMU_EXITPOINT (maybe multiple?), maybe pointless as there is
- persistent mode
+ - add AFL_QEMU_EXITPOINT (maybe multiple?)
## Ideas
diff --git a/afl-addseeds b/afl-addseeds
new file mode 100755
index 0000000..bb2843a
--- /dev/null
+++ b/afl-addseeds
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+test -z "$1" -o "$1" = "-h" -o "$1" = "--help" && {
+ echo Syntax: afl-addseeds -o afl-out-dir [-i seed_file_or_dir] seed_file_or_seed_dir seed_file_or_seed_dir ...
+ echo
+ echo Options:
+ echo " -o afl-out-dir the output directory being used in the fuzzing campaign"
+ echo " -i seed_file_or_dir file or directory of files to add"
+ echo
+ echo Adds new seeds to an existing AFL++ fuzzing campaign.
+ exit 0
+}
+
+for TOOL in find ls; do
+ X=`which $TOOL`
+ test -n "$X" || { echo "Error: required tool '$TOOL' not found."; exit 1; }
+done
+
+TEST=`printf %06d 123 2>/dev/null`
+test "$TEST" = "000123" || { echo "Error: required tool 'printf' not found."; exit 1; }
+
+OUT=
+NEXT=
+for i in $*; do
+ test -n "$NEXT" && { OUT=$i ; NEXT=""; }
+ test "$i" = "-o" && { NEXT=1; }
+done
+
+test -d "$OUT" || { echo Error: $OUT is not an existing directory; exit 1; }
+OK=`ls $OUT/*/fuzzer_stats 2>/dev/null`
+test -n "$OK" || { echo "Error: $OUT is not an 'afl-fuzz -o ... ' output directory" ; exit 1; }
+
+OUTDIR=$OUT/addseeds/queue
+mkdir -p "$OUTDIR" 2>/dev/null
+test -d "$OUTDIR" || { echo Error: could not create $OUTDIR ; exit 1 ; }
+
+echo Adding seeds ...
+NEXTID=0
+for i in $*; do
+ test -z "$i" -o "$i" = "$OUT" -o "$i" = "-i" -o "$i" = "-o" || {
+ find "$i" -type f | while read FILE; do
+ N=xxx
+ while [ -n "$N" ]; do
+ ID=$NEXTID
+ N=`ls "$OUTDIR/id:$(printf %06d $ID),"* 2>/dev/null`
+ NEXTID=$(($NEXTID + 1))
+ done
+ FN=`echo "$FILE" | sed 's/.*\///'`
+ cp -v "$FILE" "$OUTDIR/id:$(printf %06d $ID),time:0,execs:0,orig:$FN"
+ done
+ }
+done
+
+echo Done.
diff --git a/afl-cmin b/afl-cmin
index ae723c1..4aaf395 100755
--- a/afl-cmin
+++ b/afl-cmin
@@ -1,11 +1,15 @@
#!/usr/bin/env sh
+SYS=$(uname -s)
+test "$SYS" = "Darwin" && {
+ echo Error: afl-cmin does not work on Apple currently. please use afl-cmin.bash instead.
+ exit 1
+}
export AFL_QUIET=1
export ASAN_OPTIONS=detect_leaks=0
THISPATH=`dirname ${0}`
export PATH="${THISPATH}:$PATH"
awk -f - -- ${@+"$@"} <<'EOF'
#!/usr/bin/awk -f
-
# awk script to minimize a test corpus of input files
#
# based on afl-cmin bash script written by Michal Zalewski
@@ -259,22 +263,20 @@
# Do a sanity check to discourage the use of /tmp, since we can't really
# handle this safely from an awk script.
- #if (!ENVIRON["AFL_ALLOW_TMP"]) {
- # dirlist[0] = in_dir
- # dirlist[1] = target_bin
- # dirlist[2] = out_dir
- # dirlist[3] = stdin_file
- # "pwd" | getline dirlist[4] # current directory
- # for (dirind in dirlist) {
- # dir = dirlist[dirind]
- #
- # if (dir ~ /^(\/var)?\/tmp/) {
- # print "[-] Error: do not use this script in /tmp or /var/tmp." > "/dev/stderr"
- # exit 1
- # }
- # }
- # delete dirlist
- #}
+ if (!ENVIRON["AFL_ALLOW_TMP"]) {
+ dirlist[0] = in_dir
+ dirlist[1] = target_bin
+ dirlist[2] = out_dir
+ dirlist[3] = stdin_file
+ "pwd" | getline dirlist[4] # current directory
+ for (dirind in dirlist) {
+ dir = dirlist[dirind]
+ if (dir ~ /^(\/var)?\/tmp/) {
+ print "[-] Warning: do not use this script in /tmp or /var/tmp for security reasons." > "/dev/stderr"
+ }
+ }
+ delete dirlist
+ }
if (threads && stdin_file) {
print "[-] Error: -T and -f cannot be used together." > "/dev/stderr"
@@ -318,7 +320,9 @@
if (!nyx_mode && target_bin && !exists_and_is_executable(target_bin)) {
- "command -v "target_bin" 2>/dev/null" | getline tnew
+ cmd = "command -v "target_bin" 2>/dev/null"
+ cmd | getline tnew
+ close(cmd)
if (!tnew || !exists_and_is_executable(tnew)) {
print "[-] Error: binary '"target_bin"' not found or not executable." > "/dev/stderr"
exit 1
@@ -330,6 +334,7 @@
echo "[!] Trying to obtain the map size of the target ..."
get_map_size = "AFL_DUMP_MAP_SIZE=1 " target_bin
get_map_size | getline mapsize
+ close(get_map_size)
if (mapsize && mapsize > 65535 && mapsize < 100000000) {
AFL_MAP_SIZE = "AFL_MAP_SIZE="mapsize" "
print "[+] Setting "AFL_MAP_SIZE
@@ -359,14 +364,18 @@
system("rm -rf "trace_dir" 2>/dev/null");
system("rm "out_dir"/id[:_]* 2>/dev/null")
- "ls "out_dir"/* 2>/dev/null | wc -l" | getline noofentries
+ cmd = "ls "out_dir"/* 2>/dev/null | wc -l"
+ cmd | getline noofentries
+ close(cmd)
if (0 == system( "test -d "out_dir" -a "noofentries" -gt 0" )) {
print "[-] Error: directory '"out_dir"' exists and is not empty - delete it first." > "/dev/stderr"
exit 1
}
if (threads) {
- "nproc" | getline nproc
+ cmd = "nproc"
+ cmd | getline nproc
+ close(cmd)
if (threads == "all") {
threads = nproc
} else {
@@ -386,12 +395,14 @@
if (stdin_file) {
# truncate input file
printf "" > stdin_file
- close( stdin_file )
+ close(stdin_file)
}
# First we look in PATH
if (0 == system("command -v afl-showmap >/dev/null 2>&1")) {
- "command -v afl-showmap 2>/dev/null" | getline showmap
+ cmd = "command -v afl-showmap 2>/dev/null"
+ cmd | getline showmap
+ close(cmd)
} else {
# then we look in the current directory
if (0 == system("test -x ./afl-showmap")) {
@@ -413,13 +424,15 @@
# yuck, gnu stat is option incompatible to bsd stat
# we use a heuristic to differentiate between
# GNU stat and other stats
- "stat --version 2>/dev/null" | getline statversion
- if (statversion ~ /GNU coreutils/) {
+ cmd = "stat --version 2>/dev/null"
+ cmd | getline statversion
+ close(cmd)
+ if (statversion ~ /GNU coreutils/ || statversion ~ /BusyBox/) {
stat_format = "-c '%s %n'" # GNU
} else {
stat_format = "-f '%z %N'" # *BSD, MacOS
}
- cmdline = "(cd "in_dir" && find . \\( ! -name \".*\" -a -type d \\) -o -type f -exec stat "stat_format" \\{\\} + | sort -k1n -k2r)"
+ cmdline = "(cd "in_dir" && find . \\( ! -name \".*\" -a -type d \\) -o -type f -exec stat "stat_format" \\{\\} + | sort -k1n -k2r) | grep -Ev '^0'"
#cmdline = "ls "in_dir" | (cd "in_dir" && xargs stat "stat_format" 2>/dev/null) | sort -k1n -k2r"
#cmdline = "(cd "in_dir" && stat "stat_format" *) | sort -k1n -k2r"
#cmdline = "(cd "in_dir" && ls | xargs stat "stat_format" ) | sort -k1n -k2r"
@@ -432,6 +445,7 @@
infilesSmallToBigFullMap[infilesSmallToBigFull[i]] = infilesSmallToBig[i]
i++
}
+ close(cmdline)
in_count = i
first_file = infilesSmallToBigFull[0]
@@ -468,6 +482,7 @@
while ((getline < runtest) > 0) {
++first_count
}
+ close(runtest)
if (first_count) {
print "[+] OK, "first_count" tuples recorded."
@@ -480,6 +495,11 @@
}
}
+ if (in_count < threads) {
+ threads = in_count
+ print "[!] WARNING: less inputs than threads, reducing threads to "threads" and likely the overhead of threading makes things slower..."
+ }
+
# Let's roll!
#############################
@@ -488,7 +508,7 @@
if (threads) {
- inputsperfile = in_count / threads
+ inputsperfile = int(in_count / threads)
if (in_count % threads) {
inputsperfile++;
}
@@ -513,7 +533,7 @@
if (threads > 1) {
- print "[*] Creating " threads " parallel tasks with about " inputsperfile " each."
+ print "[*] Creating " threads " parallel tasks with about " inputsperfile " items each."
for (i = 1; i <= threads; i++) {
if (!stdin_file) {
@@ -582,6 +602,15 @@
else { print " Processing file "cur"/"in_count }
# create path for the trace file from afl-showmap
tracefile_path = trace_dir"/"fn
+ # ensure the file size is not zero
+ cmd = "du -b "tracefile_path
+ "ls -l "tracefile_path
+ cmd | getline output
+ close(cmd)
+ split(output, result, "\t")
+ if (result[1] == 0) {
+ print "[!] WARNING: file "fn" is crashing the target, ignoring..."
+ }
# gather all keys, and count them
while ((getline line < tracefile_path) > 0) {
key = line
@@ -643,6 +672,7 @@
}
}
close(sortedKeys)
+ print ""
print "[+] Found "tuple_count" unique tuples across "in_count" files."
if (out_count == 1) {
diff --git a/afl-cmin.bash b/afl-cmin.bash
index dc6d534..6c27122 100755
--- a/afl-cmin.bash
+++ b/afl-cmin.bash
@@ -7,7 +7,7 @@
#
# Copyright 2014, 2015 Google Inc. All rights reserved.
#
-# Copyright 2019-2023 AFLplusplus
+# Copyright 2019-2024 AFLplusplus
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@@ -167,29 +167,28 @@
# Do a sanity check to discourage the use of /tmp, since we can't really
# handle this safely from a shell script.
-#if [ "$AFL_ALLOW_TMP" = "" ]; then
-#
-# echo "$IN_DIR" | grep -qE '^(/var)?/tmp/'
-# T1="$?"
-#
-# echo "$TARGET_BIN" | grep -qE '^(/var)?/tmp/'
-# T2="$?"
-#
-# echo "$OUT_DIR" | grep -qE '^(/var)?/tmp/'
-# T3="$?"
-#
-# echo "$STDIN_FILE" | grep -qE '^(/var)?/tmp/'
-# T4="$?"
-#
-# echo "$PWD" | grep -qE '^(/var)?/tmp/'
-# T5="$?"
-#
-# if [ "$T1" = "0" -o "$T2" = "0" -o "$T3" = "0" -o "$T4" = "0" -o "$T5" = "0" ]; then
-# echo "[-] Error: do not use this script in /tmp or /var/tmp." 1>&2
-# exit 1
-# fi
-#
-#fi
+if [ "$AFL_ALLOW_TMP" = "" ]; then
+
+ echo "$IN_DIR" | grep -qE '^(/var)?/tmp/'
+ T1="$?"
+
+ echo "$TARGET_BIN" | grep -qE '^(/var)?/tmp/'
+ T2="$?"
+
+ echo "$OUT_DIR" | grep -qE '^(/var)?/tmp/'
+ T3="$?"
+
+ echo "$STDIN_FILE" | grep -qE '^(/var)?/tmp/'
+ T4="$?"
+
+ echo "$PWD" | grep -qE '^(/var)?/tmp/'
+ T5="$?"
+
+ if [ "$T1" = "0" -o "$T2" = "0" -o "$T3" = "0" -o "$T4" = "0" -o "$T5" = "0" ]; then
+ echo "[-] Warning: do not use this script in /tmp or /var/tmp for security reasons." 1>&2
+ fi
+
+fi
# If @@ is specified, but there's no -f, let's come up with a temporary input
# file name.
@@ -339,6 +338,13 @@
echo "[*] Are you aware that afl-cmin is faster than this afl-cmin.bash script?"
echo "[+] Found $IN_COUNT files for minimizing."
+if [ -n "$THREADS" ]; then
+ if [ "$IN_COUNT" -lt "$THREADS" ]; then
+ THREADS=$IN_COUNT
+ echo "[!] WARNING: less inputs than threads, reducing threads to $THREADS and likely the overhead of threading makes things slower..."
+ fi
+fi
+
FIRST_FILE=`ls "$IN_DIR" | head -1`
# Make sure that we're not dealing with a directory.
@@ -416,10 +422,14 @@
ls "$IN_DIR" | while read -r fn; do
- CUR=$((CUR+1))
- printf "\\r Processing file $CUR/$IN_COUNT... "
+ if [ -s "$IN_DIR/$fn" ]; then
- "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -- "$@" <"$IN_DIR/$fn"
+ CUR=$((CUR+1))
+ printf "\\r Processing file $CUR/$IN_COUNT... "
+
+ "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -- "$@" <"$IN_DIR/$fn"
+
+ fi
done
@@ -427,11 +437,15 @@
ls "$IN_DIR" | while read -r fn; do
- CUR=$((CUR+1))
- printf "\\r Processing file $CUR/$IN_COUNT... "
+ if [ -s "$IN_DIR/$fn" ]; then
- cp "$IN_DIR/$fn" "$STDIN_FILE"
- "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -H "$STDIN_FILE" -- "$@" </dev/null
+ CUR=$((CUR+1))
+ printf "\\r Processing file $CUR/$IN_COUNT... "
+
+ cp "$IN_DIR/$fn" "$STDIN_FILE"
+ "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -H "$STDIN_FILE" -- "$@" </dev/null
+
+ fi
done
@@ -453,19 +467,26 @@
cat $inputs | while read -r fn; do
- "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -- "$@" <"$IN_DIR/$fn"
+ if [ -s "$IN_DIR/$fn" ]; then
+
+ "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -- "$@" <"$IN_DIR/$fn"
+
+ fi
done
else
- STDIN_FILE="$inputs.$$"
- cat $inputs | while read -r fn; do
+ if [ -s "$IN_DIR/$fn" ]; then
+ STDIN_FILE="$inputs.$$"
+ cat $inputs | while read -r fn; do
- cp "$IN_DIR/$fn" "$STDIN_FILE"
- "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -H "$STDIN_FILE" -- "$@" </dev/null
+ cp "$IN_DIR/$fn" "$STDIN_FILE"
+ "$SHOWMAP" -m "$MEM_LIMIT" -t "$TIMEOUT" -o "$TRACE_DIR/$fn" -Z $EXTRA_PAR -H "$STDIN_FILE" -- "$@" </dev/null
- done
+ done
+
+ fi
fi
@@ -479,7 +500,7 @@
echo "[+] all $THREADS running tasks completed."
rm -f ${TMPFILE}*
- echo trace dir files: $(ls $TRACE_DIR/*|wc -l)
+ #echo trace dir files: $(ls $TRACE_DIR/*|wc -l)
fi
@@ -523,6 +544,8 @@
sed "s#\$# $fn#" "$TRACE_DIR/$fn" >>"$TRACE_DIR/.candidate_list"
+ test -s "$TRACE_DIR/$fn" || echo Warning: $fn is ignored because of crashing the target
+
done
echo
diff --git a/afl-persistent-config b/afl-persistent-config
index 6d96c19..26be9d9 100755
--- a/afl-persistent-config
+++ b/afl-persistent-config
@@ -2,7 +2,7 @@
# written by jhertz
#
-test "$1" = "-h" -o "$1" = "-hh" && {
+test "$1" = "-h" -o "$1" = "-hh" -o "$1" = "--help" && {
echo 'afl-persistent-config'
echo
echo $0
@@ -17,6 +17,11 @@
exit 0
}
+if [ $# -ne 0 ]; then
+ echo "ERROR: Unknown option(s): $@"
+ exit 1
+fi
+
echo
echo "WARNING: This scripts makes permanent configuration changes to the system to"
echo " increase the performance for fuzzing. As a result, the system also"
@@ -33,6 +38,7 @@
echo
PLATFORM=`uname -s`
+ARCH=`uname -m`
# check that we're on Mac
if [[ "$PLATFORM" = "Darwin" ]] ; then
@@ -82,6 +88,13 @@
</plist>
EOF
+ if [[ "$ARCH" = "x86_64" ]]; then
+ echo "Disabling ASLR system wide"
+ nvram boot-args="no_aslr=1"
+ else
+ echo NOTICE: on ARM64 we do not know currently how to disable system wide ASLR, please report if you know how.
+ fi
+
echo
echo "Reboot and enjoy your fuzzing"
exit 0
@@ -98,9 +111,9 @@
echo "Checks passed."
test -d /etc/sysctl.d || echo Error: /etc/sysctl.d directory not found, cannot install shmem config
- test -d /etc/sysctl.d -a '!' -e /etc/sysctl.d/99-fuzzing && {
- echo "Installing /etc/sysctl.d/99-fuzzing"
- cat << EOF > /etc/sysctl.d/99-fuzzing
+ test -d /etc/sysctl.d -a '!' -e /etc/sysctl.d/99-fuzzing.conf && {
+ echo "Installing /etc/sysctl.d/99-fuzzing.conf"
+ cat << EOF > /etc/sysctl.d/99-fuzzing.conf
kernel.core_uses_pid=0
kernel.core_pattern=core
kernel.randomize_va_space=0
diff --git a/afl-plot b/afl-plot
index 230d3bf..f1f288a 100755
--- a/afl-plot
+++ b/afl-plot
@@ -75,8 +75,17 @@
if [ ! -f "$inputdir/plot_data" ]; then
- echo "[-] Error: input directory is not valid (missing 'plot_data')." 1>&2
- exit 1
+ if [ -f "$inputdir/default/plot_data" ]; then
+
+ echo "[-] Error: input directory is not valid (missing 'plot_data'), likely you mean $inputdir/default?" 1>&2
+ exit 1
+
+ else
+
+ echo "[-] Error: input directory is not valid (missing 'plot_data')." 1>&2
+ exit 1
+
+ fi
fi
@@ -141,7 +150,7 @@
$GNUPLOT_SETUP
plot '$inputdir/plot_data' using 1:4 with filledcurve x1 title 'corpus count' linecolor rgb '#000000' fillstyle transparent solid 0.2 noborder, \\
- '' using 1:3 with filledcurve x1 title 'current fuzz item' linecolor rgb '#f0f0f0' fillstyle transparent solid 0.5 noborder, \\
+ '' using 1:3 with filledcurve x1 title 'current item' linecolor rgb '#f0f0f0' fillstyle transparent solid 0.5 noborder, \\
'' using 1:5 with lines title 'pending items' linecolor rgb '#0090ff' linewidth 3, \\
'' using 1:6 with lines title 'pending favs' linecolor rgb '#c00080' linewidth 3, \\
'' using 1:2 with lines title 'cycles done' linecolor rgb '#c000f0' linewidth 3
diff --git a/afl-system-config b/afl-system-config
index b50bb06..7e2cb68 100755
--- a/afl-system-config
+++ b/afl-system-config
@@ -1,5 +1,5 @@
#!/bin/sh
-test "$1" = "-h" -o "$1" = "-hh" && {
+test "$1" = "-h" -o "$1" = "-hh" -o "$1" = "--help" && {
echo 'afl-system-config by Marc Heuse <mh@mh-sec.de>'
echo
echo $0
@@ -13,6 +13,10 @@
echo configuration options.
exit 0
}
+if [ $# -ne 0 ]; then
+ echo "ERROR: Unknown option(s): $@"
+ exit 1
+fi
DONE=
PLATFORM=`uname -s`
@@ -21,6 +25,7 @@
echo
if [ '!' "$EUID" = 0 ] && [ '!' `id -u` = 0 ] ; then
echo "Warning: you need to be root to run this!"
+ sleep 1
# we do not exit as other mechanisms exist that allows to do this than
# being root. let the errors speak for themselves.
fi
@@ -110,12 +115,12 @@
sysctl kern.sysv.shmall=131072000
echo Settings applied.
echo
- if $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') ; then
+ if $(launchctl list 2>/dev/null | grep -q '\.ReportCrash\>') ; then
echo
echo Unloading the default crash reporter
SL=/System/Library; PL=com.apple.ReportCrash
- launchctl unload -w ${SL}/LaunchAgents/${PL}.plist >/dev/null 2>&1
- sudo launchctl unload -w ${SL}/LaunchDaemons/${PL}.Root.plist >/dev/null 2>&1
+ sudo -u "$SUDO_USER" launchctl unload -w ${SL}/LaunchAgents/${PL}.plist
+ launchctl unload -w ${SL}/LaunchDaemons/${PL}.Root.plist
echo
fi
echo It is recommended to disable System Integrity Protection for increased performance.
diff --git a/afl-whatsup b/afl-whatsup
index 6f29ab2..aa081e4 100755
--- a/afl-whatsup
+++ b/afl-whatsup
@@ -6,7 +6,7 @@
# Originally written by Michal Zalewski
#
# Copyright 2015 Google Inc. All rights reserved.
-# Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+# Copyright 2019-2024 AFLplusplus Project. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@@ -18,64 +18,98 @@
# instances of afl-fuzz.
#
-echo "$0 status check tool for afl-fuzz by Michal Zalewski"
-echo
test "$1" = "-h" -o "$1" = "-hh" && {
+ echo "$0 status check tool for afl-fuzz by Michal Zalewski"
+ echo
echo "Usage: $0 [-s] [-d] afl_output_directory"
echo
echo Options:
- echo " -s - skip details and output summary results only"
echo " -d - include dead fuzzer stats"
+ echo " -m - just show minimal stats"
+ echo " -n - no color output"
+ echo " -s - skip details and output summary results only"
echo
exit 1
}
-unset SUMMARY_ONLY
+unset MINIMAL_ONLY
+unset NO_COLOR
unset PROCESS_DEAD
+unset SUMMARY_ONLY
+unset RED
+unset GREEN
+unset YELLOW
+unset BLUE
+unset NC
+unset RESET
-while [ "$1" = "-s" -o "$1" = "-d" ]; do
+if [ -z "$TERM" ]; then export TERM=vt220; fi
- if [ "$1" = "-s" ]; then
- SUMMARY_ONLY=1
- fi
-
+while [ "$1" = "-d" -o "$1" = "-m" -o "$1" = "-n" -o "$1" = "-s" ]; do
+
if [ "$1" = "-d" ]; then
PROCESS_DEAD=1
fi
+ if [ "$1" = "-m" ]; then
+ MINIMAL_ONLY=1
+ fi
+
+ if [ "$1" = "-n" ]; then
+ NO_COLOR=1
+ fi
+
+ if [ "$1" = "-s" ]; then
+ SUMMARY_ONLY=1
+ fi
+
shift
-
+
done
DIR="$1"
-if [ "$DIR" = "" ]; then
-
- echo "Usage: $0 [-s] [-d] afl_output_directory" 1>&2
+if [ "$DIR" = "" -o "$DIR" = "-h" -o "$DIR" = "--help" ]; then
+
+ echo "$0 status check tool for afl-fuzz by Michal Zalewski" 1>&2
+ echo 1>&2
+ echo "Usage: $0 [-d] [-m] [-n] [-s] afl_output_directory" 1>&2
echo 1>&2
echo Options: 1>&2
- echo " -s - skip details and output summary results only" 1>&2
echo " -d - include dead fuzzer stats" 1>&2
+ echo " -m - just show minimal stats" 1>&2
+ echo " -n - no color output" 1>&2
+ echo " -s - skip details and output summary results only" 1>&2
echo 1>&2
exit 1
+
+fi
+if [ -z "$MINIMAL_ONLY" ]; then
+ echo "$0 status check tool for afl-fuzz by Michal Zalewski"
+ echo
fi
cd "$DIR" || exit 1
if [ -d queue ]; then
-
+
echo "[-] Error: parameter is an individual output directory, not a sync dir." 1>&2
exit 1
-
+
fi
-RED=`tput setaf 9 1 1 2>/dev/null`
-GREEN=`tput setaf 2 1 1 2>/dev/null`
-BLUE=`tput setaf 4 1 1 2>/dev/null`
-YELLOW=`tput setaf 11 1 1 2>/dev/null`
-NC=`tput sgr0`
-RESET="$NC"
+BC=`which bc 2>/dev/null`
+FUSER=`which fuser 2>/dev/null`
+
+if [ -z "$NO_COLOR" ]; then
+ RED=`tput setaf 9 1 1 2>/dev/null`
+ GREEN=`tput setaf 2 1 1 2>/dev/null`
+ BLUE=`tput setaf 4 1 1 2>/dev/null`
+ YELLOW=`tput setaf 11 1 1 2>/dev/null`
+ NC=`tput sgr0`
+ RESET="$NC"
+fi
CUR_TIME=`date +%s`
@@ -83,6 +117,7 @@
ALIVE_CNT=0
DEAD_CNT=0
+START_CNT=0
TOTAL_TIME=0
TOTAL_EXECS=0
@@ -91,6 +126,7 @@
TOTAL_HANGS=0
TOTAL_PFAV=0
TOTAL_PENDING=0
+TOTAL_COVERAGE=
# Time since last find / crash / hang, formatted as string
FMT_TIME="0 days 0 hours"
@@ -99,11 +135,11 @@
FMT_HANG="none seen yet"
if [ "$SUMMARY_ONLY" = "" ]; then
-
+
echo "Individual fuzzers"
echo "=================="
echo
-
+
fi
fmt_duration()
@@ -112,22 +148,22 @@
if [ $1 -le 0 ]; then
return 1
fi
-
+
local duration=$((CUR_TIME - $1))
local days=$((duration / 60 / 60 / 24))
local hours=$(((duration / 60 / 60) % 24))
local minutes=$(((duration / 60) % 60))
local seconds=$((duration % 60))
-
+
if [ $duration -le 0 ]; then
DUR_STRING="0 seconds"
- elif [ $duration -eq 1 ]; then
+ elif [ $duration -eq 1 ]; then
DUR_STRING="1 second"
- elif [ $days -gt 0 ]; then
+ elif [ $days -gt 0 ]; then
DUR_STRING="$days days, $hours hours"
- elif [ $hours -gt 0 ]; then
+ elif [ $hours -gt 0 ]; then
DUR_STRING="$hours hours, $minutes minutes"
- elif [ $minutes -gt 0 ]; then
+ elif [ $minutes -gt 0 ]; then
DUR_STRING="$minutes minutes, $seconds seconds"
else
DUR_STRING="$seconds seconds"
@@ -138,112 +174,187 @@
TOTAL_WCOP=
TOTAL_LAST_FIND=0
-for i in `find . -maxdepth 2 -iname fuzzer_stats | sort`; do
-
- sed 's/^command_line.*$/_skip:1/;s/[ ]*:[ ]*/="/;s/$/"/' "$i" >"$TMP"
- . "$TMP"
- DIR=$(dirname "$i")
- DIR=${DIR##*/}
- RUN_UNIX=$run_time
- RUN_DAYS=$((RUN_UNIX / 60 / 60 / 24))
- RUN_HRS=$(((RUN_UNIX / 60 / 60) % 24))
-
- test -n "$cycles_wo_finds" && {
- test -z "$FIRST" && TOTAL_WCOP="${TOTAL_WCOP}/"
- TOTAL_WCOP="${TOTAL_WCOP}${cycles_wo_finds}"
- FIRST=
- }
-
- if [ "$SUMMARY_ONLY" = "" ]; then
-
- echo ">>> $afl_banner instance: $DIR ($RUN_DAYS days, $RUN_HRS hrs) fuzzer PID: $fuzzer_pid <<<"
- echo
-
- fi
-
- if ! kill -0 "$fuzzer_pid" 2>/dev/null; then
-
- if [ "$SUMMARY_ONLY" = "" ]; then
-
- echo " Instance is dead or running remotely, skipping."
- echo
-
+for j in `find . -maxdepth 2 -iname fuzzer_setup | sort`; do
+
+ DIR=$(dirname "$j")
+ i=$DIR/fuzzer_stats
+
+ if [ -f "$i" ]; then
+
+ sed 's/^command_line.*$/_skip:1/;s/[ ]*:[ ]*/="/;s/$/"/' "$i" >"$TMP"
+ . "$TMP"
+ DIRECTORY=$DIR
+ DIR=${DIR##*/}
+ RUN_UNIX=$run_time
+ RUN_DAYS=$((RUN_UNIX / 60 / 60 / 24))
+ RUN_HRS=$(((RUN_UNIX / 60 / 60) % 24))
+ COVERAGE=$(echo $bitmap_cvg|tr -d %)
+ if [ -n "$TOTAL_COVERAGE" -a -n "$COVERAGE" -a -n "$BC" ]; then
+ if [ "$(echo "$TOTAL_COVERAGE < $COVERAGE" | bc)" -eq 1 ]; then
+ TOTAL_COVERAGE=$COVERAGE
+ fi
fi
-
- DEAD_CNT=$((DEAD_CNT + 1))
- last_find=0
-
- if [ "$PROCESS_DEAD" = "" ]; then
-
- continue
-
- fi
-
- fi
-
- ALIVE_CNT=$((ALIVE_CNT + 1))
-
- EXEC_SEC=0
- test -z "$RUN_UNIX" -o "$RUN_UNIX" = 0 || EXEC_SEC=$((execs_done / RUN_UNIX))
- PATH_PERC=$((cur_item * 100 / corpus_count))
-
- TOTAL_TIME=$((TOTAL_TIME + RUN_UNIX))
- TOTAL_EPS=$((TOTAL_EPS + EXEC_SEC))
- TOTAL_EXECS=$((TOTAL_EXECS + execs_done))
- TOTAL_CRASHES=$((TOTAL_CRASHES + saved_crashes))
- TOTAL_HANGS=$((TOTAL_HANGS + saved_hangs))
- TOTAL_PENDING=$((TOTAL_PENDING + pending_total))
- TOTAL_PFAV=$((TOTAL_PFAV + pending_favs))
-
- if [ "$last_find" -gt "$TOTAL_LAST_FIND" ]; then
- TOTAL_LAST_FIND=$last_find
- fi
-
- if [ "$SUMMARY_ONLY" = "" ]; then
-
- # Warnings in red
- TIMEOUT_PERC=$((exec_timeout * 100 / execs_done))
- if [ $TIMEOUT_PERC -ge 10 ]; then
- echo " ${RED}timeout_ratio $TIMEOUT_PERC%${NC}"
- fi
-
- if [ $EXEC_SEC -eq 0 ]; then
- echo " ${YELLOW}no data yet, 0 execs/sec${NC}"
- elif [ $EXEC_SEC -lt 100 ]; then
- echo " ${RED}slow execution, $EXEC_SEC execs/sec${NC}"
- fi
-
- fmt_duration $last_find && FMT_FIND=$DUR_STRING
- fmt_duration $last_crash && FMT_CRASH=$DUR_STRING
- fmt_duration $last_hang && FMT_HANG=$DUR_STRING
- FMT_CWOP="not available"
+ if [ -z "$TOTAL_COVERAGE" ]; then TOTAL_COVERAGE=$COVERAGE ; fi
+
test -n "$cycles_wo_finds" && {
- test "$cycles_wo_finds" = 0 && FMT_CWOP="$cycles_wo_finds"
- test "$cycles_wo_finds" -gt 10 && FMT_CWOP="${YELLOW}$cycles_wo_finds${NC}"
- test "$cycles_wo_finds" -gt 50 && FMT_CWOP="${RED}$cycles_wo_finds${NC}"
+ test -z "$FIRST" && TOTAL_WCOP="${TOTAL_WCOP}/"
+ TOTAL_WCOP="${TOTAL_WCOP}${cycles_wo_finds}"
+ FIRST=
}
-
- echo " last_find : $FMT_FIND"
- echo " last_crash : $FMT_CRASH"
- echo " last_hang : $FMT_HANG"
- echo " cycles_wo_finds : $FMT_CWOP"
-
- CPU_USAGE=$(ps aux | grep $fuzzer_pid | grep -v grep | awk '{print $3}')
- MEM_USAGE=$(ps aux | grep $fuzzer_pid | grep -v grep | awk '{print $4}')
-
- echo " cpu usage $CPU_USAGE%, memory usage $MEM_USAGE%"
- echo " cycles $((cycles_done + 1)), lifetime speed $EXEC_SEC execs/sec, items $cur_item/$corpus_count (${PATH_PERC}%)"
-
- if [ "$saved_crashes" = "0" ]; then
- echo " pending $pending_favs/$pending_total, coverage $bitmap_cvg, no crashes yet"
- else
- echo " pending $pending_favs/$pending_total, coverage $bitmap_cvg, crashes saved $saved_crashes (!)"
+
+ if [ "$SUMMARY_ONLY" = "" ]; then
+
+ echo ">>> $afl_banner instance: $DIR ($RUN_DAYS days, $RUN_HRS hrs) fuzzer PID: $fuzzer_pid <<<"
+ echo
+
+ fi
+
+ if ! kill -0 "$fuzzer_pid" 2>/dev/null; then
+
+ IS_STARTING=
+ IS_DEAD=
+
+ if [ -e "$i" ] && [ -e "$j" ] && [ -n "$FUSER" ]; then
+
+ if [ "$i" -ot "$j" ]; then
+
+ # fuzzer_setup is newer than fuzzer_stats, maybe the instance is starting?
+ TMP_PID=`fuser -v "$DIRECTORY" 2>&1 | grep afl-fuzz`
+
+ if [ -n "$TMP_PID" ]; then
+
+ if [ "$SUMMARY_ONLY" = "" ]; then
+
+ echo " Instance is still starting up, skipping."
+ echo
+
+ fi
+
+ START_CNT=$((START_CNT + 1))
+ last_find=0
+ IS_STARTING=1
+
+ if [ "$PROCESS_DEAD" = "" ]; then
+
+ continue
+
+ fi
+
+ fi
+
+ fi
+
+ fi
+
+ if [ -z "$IS_STARTING" ]; then
+
+ if [ "$SUMMARY_ONLY" = "" ]; then
+
+ echo " Instance is dead or running remotely, skipping."
+ echo
+
+ fi
+
+ DEAD_CNT=$((DEAD_CNT + 1))
+ IS_DEAD=1
+ last_find=0
+
+ if [ "$PROCESS_DEAD" = "" ]; then
+
+ continue
+
+ fi
+
+ fi
+
+ fi
+
+ ALIVE_CNT=$((ALIVE_CNT + 1))
+
+ EXEC_SEC=0
+ test -z "$RUN_UNIX" -o "$RUN_UNIX" = 0 || EXEC_SEC=$((execs_done / RUN_UNIX))
+ PATH_PERC=$((cur_item * 100 / corpus_count))
+
+ TOTAL_TIME=$((TOTAL_TIME + RUN_UNIX))
+ TOTAL_EPS=$((TOTAL_EPS + EXEC_SEC))
+ TOTAL_EXECS=$((TOTAL_EXECS + execs_done))
+ TOTAL_CRASHES=$((TOTAL_CRASHES + saved_crashes))
+ TOTAL_HANGS=$((TOTAL_HANGS + saved_hangs))
+ TOTAL_PENDING=$((TOTAL_PENDING + pending_total))
+ TOTAL_PFAV=$((TOTAL_PFAV + pending_favs))
+
+ if [ "$last_find" -gt "$TOTAL_LAST_FIND" ]; then
+ TOTAL_LAST_FIND=$last_find
+ fi
+
+ if [ "$SUMMARY_ONLY" = "" ]; then
+
+ # Warnings in red
+ TIMEOUT_PERC=$((exec_timeout * 100 / execs_done))
+ if [ $TIMEOUT_PERC -ge 10 ]; then
+ echo " ${RED}timeout_ratio $TIMEOUT_PERC%${NC}"
+ fi
+
+ if [ $EXEC_SEC -eq 0 ]; then
+ echo " ${YELLOW}no data yet, 0 execs/sec${NC}"
+ elif [ $EXEC_SEC -lt 100 ]; then
+ echo " ${RED}slow execution, $EXEC_SEC execs/sec${NC}"
+ fi
+
+ fmt_duration $last_find && FMT_FIND=$DUR_STRING
+ fmt_duration $last_crash && FMT_CRASH=$DUR_STRING
+ fmt_duration $last_hang && FMT_HANG=$DUR_STRING
+ FMT_CWOP="not available"
+ test -n "$cycles_wo_finds" && {
+ test "$cycles_wo_finds" = 0 && FMT_CWOP="$cycles_wo_finds"
+ test "$cycles_wo_finds" -gt 10 && FMT_CWOP="${YELLOW}$cycles_wo_finds${NC}"
+ test "$cycles_wo_finds" -gt 50 && FMT_CWOP="${RED}$cycles_wo_finds${NC}"
+ }
+
+ echo " last_find : $FMT_FIND"
+ echo " last_crash : $FMT_CRASH"
+ if [ -z "$MINIMAL_ONLY" ]; then
+ echo " last_hang : $FMT_HANG"
+ echo " cycles_wo_finds : $FMT_CWOP"
+ fi
+ echo " coverage : $COVERAGE%"
+
+ if [ -z "$MINIMAL_ONLY" ]; then
+
+ CPU_USAGE=$(ps aux | grep -w $fuzzer_pid | grep -v grep | awk '{print $3}')
+ MEM_USAGE=$(ps aux | grep -w $fuzzer_pid | grep -v grep | awk '{print $4}')
+
+ echo " cpu usage $CPU_USAGE%, memory usage $MEM_USAGE%"
+
+ fi
+
+ echo " cycles $((cycles_done + 1)), lifetime speed $EXEC_SEC execs/sec, items $cur_item/$corpus_count (${PATH_PERC}%)"
+
+ if [ "$saved_crashes" = "0" ]; then
+ echo " pending $pending_favs/$pending_total, coverage $bitmap_cvg, no crashes yet"
+ else
+ echo " pending $pending_favs/$pending_total, coverage $bitmap_cvg, crashes saved $saved_crashes (!)"
+ fi
+
+ echo
+
fi
- echo
+ else
+
+ if [ ! -e "$i" -a -e "$j" ]; then
+
+ if [ '!' "$PROCESS_DEAD" = "" ]; then
+ ALIVE_CNT=$((ALIVE_CNT + 1))
+ fi
+ START_CNT=$((START_CNT + 1))
+ last_find=0
+ IS_STARTING=1
+
+ fi
fi
-
+
done
# Formatting for total time, time since last find, crash, and hang
@@ -254,7 +365,7 @@
EXECS_THOUSAND=$((TOTAL_EXECS / 1000 % 1000))
if [ $EXECS_MILLION -gt 9 ]; then
FMT_EXECS="$EXECS_MILLION millions"
-elif [ $EXECS_MILLION -gt 0 ]; then
+ elif [ $EXECS_MILLION -gt 0 ]; then
FMT_EXECS="$EXECS_MILLION millions, $EXECS_THOUSAND thousands"
else
FMT_EXECS="$EXECS_THOUSAND thousands"
@@ -271,40 +382,56 @@
test "$TOTAL_TIME" = "0" && TOTAL_TIME=1
if [ "$PROCESS_DEAD" = "" ]; then
-
+
TXT="excluded from stats"
-
+
else
-
+
TXT="included in stats"
- ALIVE_CNT=$(($ALIVE_CNT - $DEAD_CNT))
-
+ ALIVE_CNT=$(($ALIVE_CNT - $DEAD_CNT - $START_CNT))
+
fi
echo "Summary stats"
echo "============="
-echo
+if [ -z "$SUMMARY_ONLY" -o -z "$MINIMAL_ONLY" ]; then
+ echo
+fi
+
echo " Fuzzers alive : $ALIVE_CNT"
+if [ ! "$START_CNT" = "0" ]; then
+ echo " Starting up : $START_CNT ($TXT)"
+fi
+
if [ ! "$DEAD_CNT" = "0" ]; then
echo " Dead or remote : $DEAD_CNT ($TXT)"
fi
echo " Total run time : $FMT_TIME"
-echo " Total execs : $FMT_EXECS"
-echo " Cumulative speed : $TOTAL_EPS execs/sec"
+if [ -z "$MINIMAL_ONLY" ]; then
+ echo " Total execs : $FMT_EXECS"
+ echo " Cumulative speed : $TOTAL_EPS execs/sec"
+fi
if [ "$ALIVE_CNT" -gt "0" ]; then
echo " Average speed : $((TOTAL_EPS / ALIVE_CNT)) execs/sec"
fi
-echo " Pending items : $TOTAL_PFAV faves, $TOTAL_PENDING total"
-
-if [ "$ALIVE_CNT" -gt "1" ]; then
- echo " Pending per fuzzer : $((TOTAL_PFAV/ALIVE_CNT)) faves, $((TOTAL_PENDING/ALIVE_CNT)) total (on average)"
+if [ -z "$MINIMAL_ONLY" ]; then
+ echo " Pending items : $TOTAL_PFAV faves, $TOTAL_PENDING total"
fi
+if [ "$ALIVE_CNT" -gt "1" -o -n "$MINIMAL_ONLY" ]; then
+ if [ "$ALIVE_CNT" -gt "0" ]; then
+ echo " Pending per fuzzer : $((TOTAL_PFAV/ALIVE_CNT)) faves, $((TOTAL_PENDING/ALIVE_CNT)) total (on average)"
+ fi
+fi
+
+echo " Coverage reached : ${TOTAL_COVERAGE}%"
echo " Crashes saved : $TOTAL_CRASHES"
-echo " Hangs saved : $TOTAL_HANGS"
-echo "Cycles without finds : $TOTAL_WCOP"
+if [ -z "$MINIMAL_ONLY" ]; then
+ echo " Hangs saved : $TOTAL_HANGS"
+ echo "Cycles without finds : $TOTAL_WCOP"
+fi
echo " Time without finds : $TOTAL_LAST_FIND"
echo
diff --git a/benchmark/COMPARISON.md b/benchmark/COMPARISON.md
new file mode 100644
index 0000000..49c107a
--- /dev/null
+++ b/benchmark/COMPARISON.md
@@ -0,0 +1,9 @@
+CPU | MHz | threads | singlecore | multicore | afl-*-config |
+====================================================|=======|=========|============|===========|==============|
+Raspberry Pi 5 | 2400 | 4 | 25786 | 101114 | both |
+AMD EPYC 7282 16-Core Processor | 3194 | 32 | 87199 | 769001 | both |
+AMD Ryzen 5 PRO 4650G with Radeon Graphics | 3700 | 12 | 95356 | 704840 | both |
+Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz | 4995 | 16 | 120064 | 1168943 | both |
+12th Gen Intel(R) Core(TM) i7-1270P | 4761 | 16 | 149778 | 641219 | both |
+AMD Ryzen 9 5950X 16-Core Processor | 4792 | 32 | 161690 | 2339763 | both |
+Apple Mac Studio M2 Ultra 2023, Linux VM guest | 3500 | 16 | 163570 | 1157465 | both |
diff --git a/benchmark/README.md b/benchmark/README.md
new file mode 100644
index 0000000..12f4763
--- /dev/null
+++ b/benchmark/README.md
@@ -0,0 +1,59 @@
+# American Fuzzy Lop plus plus (AFL++)
+
+## benchmarking
+
+This directory contains benchmarking tools that allow you to compare one machine
+with another in terms of raw ability to execute a fuzzing target repeatedly.
+
+To achieve this, we use a sample program ("test-instr.c") where each path is
+equally likely, supply it a single seed, and tell AFL to exit after one run of
+deterministic mutations against that seed.
+
+**Note that this is not a real-world scenario!**
+Because the target does basically nothing this is rather a stress test on
+Kernel I/O / context switching.
+For this reason you will not see a difference if you run the multicore test
+with 20 or 40 threads - or even see the performance decline the more threads
+(`-f` parameter) you use. In a real-world scenario you can expect to gain
+exec/s until 40-60 threads (if you have that many available on your CPU).
+
+Usage example:
+
+```
+cd aflplusplus/benchmark
+python3 benchmark.py
+ [*] Ready, starting benchmark...
+ [*] Compiling the test-instr-persist-shmem fuzzing harness for the benchmark to use.
+ [*] singlecore test-instr-persist-shmem run 1 of 2, execs/s: 124883.62
+ [*] singlecore test-instr-persist-shmem run 2 of 2, execs/s: 126704.93
+ [*] Average execs/sec for this test across all runs was: 125794.28
+ [*] Using 16 fuzzers for multicore fuzzing (use --fuzzers to override).
+ [*] multicore test-instr-persist-shmem run 1 of 2, execs/s: 1179822.66
+ [*] multicore test-instr-persist-shmem run 2 of 2, execs/s: 1175584.09
+ [*] Average execs/sec for this test across all runs was: 1177703.38
+ [*] Results have been written to the benchmark-results.jsonl file.
+ [*] Results have been written to the COMPARISON.md file.
+```
+
+By default, the script will use a number of parallel fuzzers equal to your
+available CPUs/threads (change with `--fuzzers`), and will perform each test
+three times and average the result (change with `--runs`).
+
+The script will use multicore fuzzing instead of singlecore by default (change
+with `--mode singlecore`) and use a persistent-mode shared memory harness for
+optimal speed (change with `--target test-instr`).
+
+Feel free to submit the resulting line for your CPU added to the COMPARISON.md
+and benchmark-results.jsonl files back to AFL++ in a pull request.
+
+Each run writes results to [benchmark-results.jsonl](benchmark-results.jsonl)
+in [JSON Lines](https://jsonlines.org/) format, ready to be pulled in to other
+tools such as [jq -cs](https://jqlang.github.io/jq/) or
+[pandas](https://pandas.pydata.org/) for analysis.
+
+## Data analysis
+
+There is sample data in [benchmark-results.jsonl](benchmark-results.jsonl), and
+a Jupyter notebook for exploring the results and suggesting their meaning at
+[benchmark.ipynb](benchmark.ipynb).
+
diff --git a/benchmark/benchmark-results.jsonl b/benchmark/benchmark-results.jsonl
new file mode 100644
index 0000000..ac800d6
--- /dev/null
+++ b/benchmark/benchmark-results.jsonl
@@ -0,0 +1,420 @@
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4788.77, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr": {"singlecore": {"execs_per_sec": 9845.64, "execs_total": 98545, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "i9-9900k, 16GB DDR4-3000, Arch Linux", "compiler": "clang version 16.0.6", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4989.281, "cpu_model": "Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"singlecore": {"execs_per_sec": 125682.73, "execs_total": 1257330, "fuzzers_used": 1}}}}
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+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "", "compiler": "Debian clang version 17.0.4 (++20231031083102+309d55140c46-1~exp1~20231031083155.63)", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4761.063, "cpu_model": "12th Gen Intel(R) Core(TM) i7-1270P", "cpu_threads": 16}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 641219.02, "execs_total": 19251242, "fuzzers_used": 16}, "singlecore": {"execs_per_sec": 149778.22, "execs_total": 4493796, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "", "compiler": "Ubuntu clang version 17.0.2 (++20231003073128+b2417f51dbbd-1~exp1~20231003073233.51)", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3193.942, "cpu_model": "AMD EPYC 7282 16-Core Processor", "cpu_threads": 64}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 769000.8, "execs_total": 23084516, "fuzzers_used": 32}, "singlecore": {"execs_per_sec": 87198.85, "execs_total": 2616227, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.08a", "comment": "", "compiler": "Ubuntu clang version 14.0.0-1ubuntu1.1", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 3700.0, "cpu_model": "AMD Ryzen 5 PRO 4650G with Radeon Graphics", "cpu_threads": 12}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 704840.16, "execs_total": 21163992, "fuzzers_used": 12}, "singlecore": {"execs_per_sec": 95356.14, "execs_total": 2862114, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.09a", "comment": "", "compiler": "Debian clang version 14.0.6", "target_arch": "aarch64-unknown-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 2400.0, "cpu_model": "Raspberry Pi 5", "cpu_threads": 4}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 101114.23, "execs_total": 3036637, "fuzzers_used": 4}, "singlecore": {"execs_per_sec": 25786.11, "execs_total": 774460, "fuzzers_used": 1}}}}
+{"config": {"afl_persistent_config": true, "afl_system_config": true, "afl_version": "++4.07a", "comment": "", "compiler": "Debian clang version 17.0.0 (++20230417071830+ae77aceba5ad-1~exp1~20230417071935.630)", "target_arch": "x86_64-pc-linux-gnu"}, "hardware": {"cpu_fastest_core_mhz": 4792.073, "cpu_model": "AMD Ryzen 9 5950X 16-Core Processor", "cpu_threads": 32}, "targets": {"test-instr-persist-shmem": {"multicore": {"execs_per_sec": 2339762.91, "execs_total": 70253164, "fuzzers_used": 32}, "singlecore": {"execs_per_sec": 161690.07, "execs_total": 4851838, "fuzzers_used": 1}}}}
diff --git a/benchmark/benchmark.ipynb b/benchmark/benchmark.ipynb
new file mode 100644
index 0000000..aea2e0f
--- /dev/null
+++ b/benchmark/benchmark.ipynb
@@ -0,0 +1,1445 @@
+{
+ "cells": [
+ {
+ "cell_type": "code",
+ "execution_count": 142,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "# benchmark.ipynb\n",
+ "# Part of the aflplusplus project, requires an ipynb (Jupyter) editor or viewer.\n",
+ "# Author: Chris Ball <chris@printf.net>\n",
+ "import json\n",
+ "import pandas as pd\n",
+ "with open(\"benchmark-results.jsonl\") as f:\n",
+ " lines = f.read().splitlines()\n",
+ "json_lines = [json.loads(line) for line in lines]\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "### Translate the JSON Lines entries into a single pandas DataFrame\n",
+ "\n",
+ "We have JSON Lines in [benchmark-results.jsonl](benchmark-results.jsonl) that look like this:"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 143,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "{\n",
+ " \"config\": {\n",
+ " \"afl_persistent_config\": true,\n",
+ " \"afl_system_config\": true,\n",
+ " \"afl_version\": \"++4.09a\",\n",
+ " \"comment\": \"i9-9900k, 16GB DDR4-3000, Arch Linux\",\n",
+ " \"compiler\": \"clang version 16.0.6\",\n",
+ " \"target_arch\": \"x86_64-pc-linux-gnu\"\n",
+ " },\n",
+ " \"hardware\": {\n",
+ " \"cpu_fastest_core_mhz\": 4788.77,\n",
+ " \"cpu_model\": \"Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz\",\n",
+ " \"cpu_threads\": 16\n",
+ " },\n",
+ " \"targets\": {\n",
+ " \"test-instr\": {\n",
+ " \"singlecore\": {\n",
+ " \"execs_per_sec\": 9845.64,\n",
+ " \"execs_total\": 98545,\n",
+ " \"fuzzers_used\": 1\n",
+ " }\n",
+ " }\n",
+ " }\n",
+ "}\n"
+ ]
+ }
+ ],
+ "source": [
+ "print(json.dumps(json.loads(lines[0]), indent=2))"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "The [pd.json_normalize()](https://pandas.pydata.org/docs/reference/api/pandas.json_normalize.html]) method translates this into a flat table that we can perform queries against:"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 144,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "<div>\n",
+ "<style scoped>\n",
+ " .dataframe tbody tr th:only-of-type {\n",
+ " vertical-align: middle;\n",
+ " }\n",
+ "\n",
+ " .dataframe tbody tr th {\n",
+ " vertical-align: top;\n",
+ " }\n",
+ "\n",
+ " .dataframe thead th {\n",
+ " text-align: right;\n",
+ " }\n",
+ "</style>\n",
+ "<table border=\"1\" class=\"dataframe\">\n",
+ " <thead>\n",
+ " <tr style=\"text-align: right;\">\n",
+ " <th></th>\n",
+ " <th>config.afl_persistent_config</th>\n",
+ " <th>config.afl_system_config</th>\n",
+ " <th>config.afl_version</th>\n",
+ " <th>config.comment</th>\n",
+ " <th>config.compiler</th>\n",
+ " <th>config.target_arch</th>\n",
+ " <th>hardware.cpu_fastest_core_mhz</th>\n",
+ " <th>hardware.cpu_model</th>\n",
+ " <th>hardware.cpu_threads</th>\n",
+ " <th>targets.test-instr.singlecore.execs_per_sec</th>\n",
+ " <th>...</th>\n",
+ " <th>targets.test-instr.singlecore.fuzzers_used</th>\n",
+ " <th>targets.test-instr-persist-shmem.singlecore.execs_per_sec</th>\n",
+ " <th>targets.test-instr-persist-shmem.singlecore.execs_total</th>\n",
+ " <th>targets.test-instr-persist-shmem.singlecore.fuzzers_used</th>\n",
+ " <th>targets.test-instr-persist-shmem.multicore.execs_per_sec</th>\n",
+ " <th>targets.test-instr-persist-shmem.multicore.execs_total</th>\n",
+ " <th>targets.test-instr-persist-shmem.multicore.fuzzers_used</th>\n",
+ " <th>targets.test-instr.multicore.execs_per_sec</th>\n",
+ " <th>targets.test-instr.multicore.execs_total</th>\n",
+ " <th>targets.test-instr.multicore.fuzzers_used</th>\n",
+ " </tr>\n",
+ " </thead>\n",
+ " <tbody>\n",
+ " <tr>\n",
+ " <th>0</th>\n",
+ " <td>True</td>\n",
+ " <td>True</td>\n",
+ " <td>++4.09a</td>\n",
+ " <td>i9-9900k, 16GB DDR4-3000, Arch Linux</td>\n",
+ " <td>clang version 16.0.6</td>\n",
+ " <td>x86_64-pc-linux-gnu</td>\n",
+ " <td>4788.770</td>\n",
+ " <td>Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz</td>\n",
+ " <td>16</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>...</td>\n",
+ " <td>1.0</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>1</th>\n",
+ " <td>True</td>\n",
+ " <td>True</td>\n",
+ " <td>++4.09a</td>\n",
+ " <td>i9-9900k, 16GB DDR4-3000, Arch Linux</td>\n",
+ " <td>clang version 16.0.6</td>\n",
+ " <td>x86_64-pc-linux-gnu</td>\n",
+ " <td>4989.281</td>\n",
+ " <td>Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz</td>\n",
+ " <td>16</td>\n",
+ " <td>NaN</td>\n",
+ " <td>...</td>\n",
+ " <td>NaN</td>\n",
+ " <td>125682.73</td>\n",
+ " <td>1257330.0</td>\n",
+ " <td>1.0</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>2</th>\n",
+ " <td>True</td>\n",
+ " <td>True</td>\n",
+ " <td>++4.09a</td>\n",
+ " <td>i9-9900k, 16GB DDR4-3000, Arch Linux</td>\n",
+ " <td>clang version 16.0.6</td>\n",
+ " <td>x86_64-pc-linux-gnu</td>\n",
+ " <td>4799.415</td>\n",
+ " <td>Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz</td>\n",
+ " <td>16</td>\n",
+ " <td>NaN</td>\n",
+ " <td>...</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>120293.77</td>\n",
+ " <td>1203058.0</td>\n",
+ " <td>1.0</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>3</th>\n",
+ " <td>True</td>\n",
+ " <td>True</td>\n",
+ " <td>++4.09a</td>\n",
+ " <td>i9-9900k, 16GB DDR4-3000, Arch Linux</td>\n",
+ " <td>clang version 16.0.6</td>\n",
+ " <td>x86_64-pc-linux-gnu</td>\n",
+ " <td>4703.293</td>\n",
+ " <td>Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz</td>\n",
+ " <td>16</td>\n",
+ " <td>NaN</td>\n",
+ " <td>...</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>231429.96</td>\n",
+ " <td>2314531.0</td>\n",
+ " <td>2.0</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>4</th>\n",
+ " <td>True</td>\n",
+ " <td>True</td>\n",
+ " <td>++4.09a</td>\n",
+ " <td>i9-9900k, 16GB DDR4-3000, Arch Linux</td>\n",
+ " <td>clang version 16.0.6</td>\n",
+ " <td>x86_64-pc-linux-gnu</td>\n",
+ " <td>4800.375</td>\n",
+ " <td>Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz</td>\n",
+ " <td>16</td>\n",
+ " <td>NaN</td>\n",
+ " <td>...</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>346759.33</td>\n",
+ " <td>3468290.0</td>\n",
+ " <td>3.0</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " <td>NaN</td>\n",
+ " </tr>\n",
+ " </tbody>\n",
+ "</table>\n",
+ "<p>5 rows × 21 columns</p>\n",
+ "</div>"
+ ],
+ "text/plain": [
+ " config.afl_persistent_config config.afl_system_config config.afl_version \\\n",
+ "0 True True ++4.09a \n",
+ "1 True True ++4.09a \n",
+ "2 True True ++4.09a \n",
+ "3 True True ++4.09a \n",
+ "4 True True ++4.09a \n",
+ "\n",
+ " config.comment config.compiler \\\n",
+ "0 i9-9900k, 16GB DDR4-3000, Arch Linux clang version 16.0.6 \n",
+ "1 i9-9900k, 16GB DDR4-3000, Arch Linux clang version 16.0.6 \n",
+ "2 i9-9900k, 16GB DDR4-3000, Arch Linux clang version 16.0.6 \n",
+ "3 i9-9900k, 16GB DDR4-3000, Arch Linux clang version 16.0.6 \n",
+ "4 i9-9900k, 16GB DDR4-3000, Arch Linux clang version 16.0.6 \n",
+ "\n",
+ " config.target_arch hardware.cpu_fastest_core_mhz \\\n",
+ "0 x86_64-pc-linux-gnu 4788.770 \n",
+ "1 x86_64-pc-linux-gnu 4989.281 \n",
+ "2 x86_64-pc-linux-gnu 4799.415 \n",
+ "3 x86_64-pc-linux-gnu 4703.293 \n",
+ "4 x86_64-pc-linux-gnu 4800.375 \n",
+ "\n",
+ " hardware.cpu_model hardware.cpu_threads \\\n",
+ "0 Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz 16 \n",
+ "1 Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz 16 \n",
+ "2 Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz 16 \n",
+ "3 Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz 16 \n",
+ "4 Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz 16 \n",
+ "\n",
+ " targets.test-instr.singlecore.execs_per_sec ... \\\n",
+ "0 9845.64 ... \n",
+ "1 NaN ... \n",
+ "2 NaN ... \n",
+ "3 NaN ... \n",
+ "4 NaN ... \n",
+ "\n",
+ " targets.test-instr.singlecore.fuzzers_used \\\n",
+ "0 1.0 \n",
+ "1 NaN \n",
+ "2 NaN \n",
+ "3 NaN \n",
+ "4 NaN \n",
+ "\n",
+ " targets.test-instr-persist-shmem.singlecore.execs_per_sec \\\n",
+ "0 NaN \n",
+ "1 125682.73 \n",
+ "2 NaN \n",
+ "3 NaN \n",
+ "4 NaN \n",
+ "\n",
+ " targets.test-instr-persist-shmem.singlecore.execs_total \\\n",
+ "0 NaN \n",
+ "1 1257330.0 \n",
+ "2 NaN \n",
+ "3 NaN \n",
+ "4 NaN \n",
+ "\n",
+ " targets.test-instr-persist-shmem.singlecore.fuzzers_used \\\n",
+ "0 NaN \n",
+ "1 1.0 \n",
+ "2 NaN \n",
+ "3 NaN \n",
+ "4 NaN \n",
+ "\n",
+ " targets.test-instr-persist-shmem.multicore.execs_per_sec \\\n",
+ "0 NaN \n",
+ "1 NaN \n",
+ "2 120293.77 \n",
+ "3 231429.96 \n",
+ "4 346759.33 \n",
+ "\n",
+ " targets.test-instr-persist-shmem.multicore.execs_total \\\n",
+ "0 NaN \n",
+ "1 NaN \n",
+ "2 1203058.0 \n",
+ "3 2314531.0 \n",
+ "4 3468290.0 \n",
+ "\n",
+ " targets.test-instr-persist-shmem.multicore.fuzzers_used \\\n",
+ "0 NaN \n",
+ "1 NaN \n",
+ "2 1.0 \n",
+ "3 2.0 \n",
+ "4 3.0 \n",
+ "\n",
+ " targets.test-instr.multicore.execs_per_sec \\\n",
+ "0 NaN \n",
+ "1 NaN \n",
+ "2 NaN \n",
+ "3 NaN \n",
+ "4 NaN \n",
+ "\n",
+ " targets.test-instr.multicore.execs_total \\\n",
+ "0 NaN \n",
+ "1 NaN \n",
+ "2 NaN \n",
+ "3 NaN \n",
+ "4 NaN \n",
+ "\n",
+ " targets.test-instr.multicore.fuzzers_used \n",
+ "0 NaN \n",
+ "1 NaN \n",
+ "2 NaN \n",
+ "3 NaN \n",
+ "4 NaN \n",
+ "\n",
+ "[5 rows x 21 columns]"
+ ]
+ },
+ "execution_count": 144,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "\n",
+ "df = pd.json_normalize(json_lines)\n",
+ "df.head()"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "### Graph prep\n",
+ "\n",
+ "We're looking for a line graph showing lines for each fuzz target, in both singlecore and multicore modes, in each config setting -- where the x-axis is number of cores, and the y-axis is execs_per_sec.\n",
+ "\n",
+ "First, a quick check that the number of rows matched what we'd intuitively expect:"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 145,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "i7 = df.query(\"`config.comment` == 'i9-9900k, 16GB DDR4-3000, Arch Linux'\")\n",
+ "assert len(i7) == 185"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 146,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "def build_graphdf_from_query(query: pd.DataFrame):\n",
+ " \"\"\"Build a table suitable for graphing from a subset of the dataframe.\"\"\"\n",
+ " graphdata = []\n",
+ " max_fuzzers = int(query[[\"targets.test-instr-persist-shmem.multicore.fuzzers_used\", \"targets.test-instr.multicore.fuzzers_used\"]].max(axis=1).max(axis=0))\n",
+ " for _, row in query.iterrows():\n",
+ " for target in [\"test-instr-persist-shmem\", \"test-instr\"]:\n",
+ " for mode in [\"multicore\", \"singlecore\"]:\n",
+ " label = \"\"\n",
+ " if not row[f\"targets.{target}.{mode}.execs_per_sec\"] > 0:\n",
+ " continue\n",
+ " execs_per_sec = row[f\"targets.{target}.{mode}.execs_per_sec\"]\n",
+ " parallel_fuzzers = row[f\"targets.{target}.{mode}.fuzzers_used\"]\n",
+ " afl_persistent_config = row[\"config.afl_persistent_config\"]\n",
+ " afl_system_config = row[\"config.afl_system_config\"]\n",
+ " if target == \"test-instr-persist-shmem\":\n",
+ " label += \"shmem\"\n",
+ " else:\n",
+ " label += \"base\"\n",
+ " if mode == \"multicore\":\n",
+ " label += \"-multicore\"\n",
+ " else:\n",
+ " label += \"-singlecore\"\n",
+ " if afl_persistent_config:\n",
+ " label += \"+persist-conf\"\n",
+ " if afl_system_config:\n",
+ " label += \"+system-conf\"\n",
+ " \n",
+ " if label == \"shmem-multicore+persist-conf+system-conf\":\n",
+ " graphdata.append({\"execs_per_sec\": execs_per_sec, \"parallel_fuzzers\": parallel_fuzzers, \"afl_persistent_config\": afl_persistent_config, \"afl_system_config\": afl_system_config, \"label\": \"Multicore: Persistent mode/shared memory + kernel config\"})\n",
+ " if label == \"shmem-multicore\":\n",
+ " graphdata.append({\"execs_per_sec\": execs_per_sec, \"parallel_fuzzers\": parallel_fuzzers, \"afl_persistent_config\": afl_persistent_config, \"afl_system_config\": afl_system_config, \"label\": \"Multicore: Persistent mode/shared memory without kernel config\"})\n",
+ " if label == \"base-multicore+persist-conf+system-conf\":\n",
+ " graphdata.append({\"execs_per_sec\": execs_per_sec, \"parallel_fuzzers\": parallel_fuzzers, \"afl_persistent_config\": afl_persistent_config, \"afl_system_config\": afl_system_config, \"label\": \"Multicore: Non-persistent mode + kernel config\"})\n",
+ " if label == \"shmem-singlecore+persist-conf+system-conf\":\n",
+ " for i in range(1, max_fuzzers + 1):\n",
+ " graphdata.append({\"execs_per_sec\": execs_per_sec, \"parallel_fuzzers\": float(i), \"afl_persistent_config\": afl_persistent_config, \"afl_system_config\": afl_system_config, \"label\": \"Singlecore: Persistent mode/shared memory + kernel config\"})\n",
+ " if label == \"base-singlecore+persist-conf+system-conf\":\n",
+ " for i in range(1, max_fuzzers + 1):\n",
+ " graphdata.append({\"execs_per_sec\": execs_per_sec, \"parallel_fuzzers\": float(i), \"afl_persistent_config\": afl_persistent_config, \"afl_system_config\": afl_system_config, \"label\": \"Singlecore: Non-persistent mode + kernel config\"})\n",
+ " return pd.DataFrame.from_records(graphdata).sort_values(\"label\", ascending=False)\n",
+ "\n",
+ "graphdf = build_graphdf_from_query(i7)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 147,
+ "metadata": {},
+ "outputs": [
+ {
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font-weight: normal; white-space: pre;\">Fuzz target executions per second</text></g></g></svg>"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "import numpy as np\n",
+ "pd.options.plotting.backend = \"plotly\"\n",
+ "\n",
+ "# Right now our table has absolute values of execs per sec, but it's more useful\n",
+ "# to show relative perf (vs 1.0x baseline)\n",
+ "pivotdf = graphdf.pivot(index=\"parallel_fuzzers\", columns=\"label\", values=\"execs_per_sec\")\n",
+ "fig = pivotdf.plot(\n",
+ " title=\"Fuzzer performance\",\n",
+ " labels={\n",
+ " \"label\": \"Configuration\",\n",
+ " \"parallel_fuzzers\": \"Number of parallel fuzzers\",\n",
+ " \"value\": \"Fuzz target executions per second\"\n",
+ " }\n",
+ ")\n",
+ "\n",
+ "# Compute tick values and their labels for the primary Y-axis\n",
+ "tickvals = np.linspace(graphdf['execs_per_sec'].min(), graphdf['execs_per_sec'].max(), 6)\n",
+ "ticktext = [f\"{val:.0f}x\" for val in tickvals / graphdf['execs_per_sec'].min()]\n",
+ "# Update the primary Y-axis with custom tick labels\n",
+ "fig.update_yaxes(tickvals=tickvals, ticktext=ticktext)\n",
+ "fig.update_xaxes(tickvals=list(range(1,36+1)))\n",
+ "fig.update_layout(width=1200, height=400)\n",
+ "fig.show(\"svg\")\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "Here's what the table that produced this graph looks like:"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 148,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "<div>\n",
+ "<style scoped>\n",
+ " .dataframe tbody tr th:only-of-type {\n",
+ " vertical-align: middle;\n",
+ " }\n",
+ "\n",
+ " .dataframe tbody tr th {\n",
+ " vertical-align: top;\n",
+ " }\n",
+ "\n",
+ " .dataframe thead th {\n",
+ " text-align: right;\n",
+ " }\n",
+ "</style>\n",
+ "<table border=\"1\" class=\"dataframe\">\n",
+ " <thead>\n",
+ " <tr style=\"text-align: right;\">\n",
+ " <th>label</th>\n",
+ " <th>Multicore: Non-persistent mode + kernel config</th>\n",
+ " <th>Multicore: Persistent mode/shared memory + kernel config</th>\n",
+ " <th>Multicore: Persistent mode/shared memory without kernel config</th>\n",
+ " <th>Singlecore: Non-persistent mode + kernel config</th>\n",
+ " <th>Singlecore: Persistent mode/shared memory + kernel config</th>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>parallel_fuzzers</th>\n",
+ " <th></th>\n",
+ " <th></th>\n",
+ " <th></th>\n",
+ " <th></th>\n",
+ " <th></th>\n",
+ " </tr>\n",
+ " </thead>\n",
+ " <tbody>\n",
+ " <tr>\n",
+ " <th>1.0</th>\n",
+ " <td>10714.79</td>\n",
+ " <td>120293.77</td>\n",
+ " <td>90641.62</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>2.0</th>\n",
+ " <td>20493.07</td>\n",
+ " <td>231429.96</td>\n",
+ " <td>178184.19</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>3.0</th>\n",
+ " <td>29660.06</td>\n",
+ " <td>346759.33</td>\n",
+ " <td>262652.86</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>4.0</th>\n",
+ " <td>37875.57</td>\n",
+ " <td>455340.06</td>\n",
+ " <td>339119.32</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>5.0</th>\n",
+ " <td>46326.75</td>\n",
+ " <td>568405.15</td>\n",
+ " <td>420239.94</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>6.0</th>\n",
+ " <td>54595.48</td>\n",
+ " <td>678030.96</td>\n",
+ " <td>498062.02</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>7.0</th>\n",
+ " <td>62720.98</td>\n",
+ " <td>782585.04</td>\n",
+ " <td>578495.44</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>8.0</th>\n",
+ " <td>70777.99</td>\n",
+ " <td>893618.35</td>\n",
+ " <td>661836.22</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>9.0</th>\n",
+ " <td>74236.02</td>\n",
+ " <td>956026.15</td>\n",
+ " <td>684808.49</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>10.0</th>\n",
+ " <td>78134.94</td>\n",
+ " <td>984942.13</td>\n",
+ " <td>707094.65</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>11.0</th>\n",
+ " <td>81886.33</td>\n",
+ " <td>1016758.62</td>\n",
+ " <td>732106.17</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>12.0</th>\n",
+ " <td>85923.44</td>\n",
+ " <td>1053087.90</td>\n",
+ " <td>752910.17</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>13.0</th>\n",
+ " <td>89696.95</td>\n",
+ " <td>1085797.87</td>\n",
+ " <td>776179.85</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>14.0</th>\n",
+ " <td>93540.52</td>\n",
+ " <td>1110640.20</td>\n",
+ " <td>797520.58</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>15.0</th>\n",
+ " <td>97641.51</td>\n",
+ " <td>1138984.22</td>\n",
+ " <td>822235.41</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>16.0</th>\n",
+ " <td>101692.65</td>\n",
+ " <td>1168943.19</td>\n",
+ " <td>843897.51</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>17.0</th>\n",
+ " <td>101236.75</td>\n",
+ " <td>1135093.91</td>\n",
+ " <td>843177.15</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>18.0</th>\n",
+ " <td>101006.28</td>\n",
+ " <td>1160430.45</td>\n",
+ " <td>844779.09</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>19.0</th>\n",
+ " <td>99952.26</td>\n",
+ " <td>1155769.97</td>\n",
+ " <td>846060.74</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>20.0</th>\n",
+ " <td>99798.64</td>\n",
+ " <td>1150156.26</td>\n",
+ " <td>847556.23</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>21.0</th>\n",
+ " <td>99018.86</td>\n",
+ " <td>1136873.58</td>\n",
+ " <td>844022.97</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>22.0</th>\n",
+ " <td>98600.87</td>\n",
+ " <td>1112404.25</td>\n",
+ " <td>845818.70</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>23.0</th>\n",
+ " <td>98634.02</td>\n",
+ " <td>1143131.72</td>\n",
+ " <td>844118.27</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>24.0</th>\n",
+ " <td>98352.90</td>\n",
+ " <td>1143931.38</td>\n",
+ " <td>837189.02</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>25.0</th>\n",
+ " <td>98118.63</td>\n",
+ " <td>1102090.61</td>\n",
+ " <td>834712.31</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>26.0</th>\n",
+ " <td>97752.45</td>\n",
+ " <td>1116518.70</td>\n",
+ " <td>836344.12</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>27.0</th>\n",
+ " <td>97864.07</td>\n",
+ " <td>1099224.19</td>\n",
+ " <td>827784.91</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>28.0</th>\n",
+ " <td>97821.80</td>\n",
+ " <td>1114945.37</td>\n",
+ " <td>828641.27</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>29.0</th>\n",
+ " <td>97564.87</td>\n",
+ " <td>1110889.91</td>\n",
+ " <td>826123.67</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>30.0</th>\n",
+ " <td>98508.10</td>\n",
+ " <td>1058548.28</td>\n",
+ " <td>817765.77</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>31.0</th>\n",
+ " <td>98238.96</td>\n",
+ " <td>1119804.85</td>\n",
+ " <td>816556.66</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>32.0</th>\n",
+ " <td>98363.93</td>\n",
+ " <td>1118828.99</td>\n",
+ " <td>812661.77</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>33.0</th>\n",
+ " <td>96758.69</td>\n",
+ " <td>1093426.61</td>\n",
+ " <td>805352.16</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>34.0</th>\n",
+ " <td>96327.00</td>\n",
+ " <td>1108123.59</td>\n",
+ " <td>815888.26</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>35.0</th>\n",
+ " <td>95913.98</td>\n",
+ " <td>1041486.52</td>\n",
+ " <td>812348.56</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " <tr>\n",
+ " <th>36.0</th>\n",
+ " <td>95871.39</td>\n",
+ " <td>1092395.61</td>\n",
+ " <td>817278.03</td>\n",
+ " <td>9845.64</td>\n",
+ " <td>125682.73</td>\n",
+ " </tr>\n",
+ " </tbody>\n",
+ "</table>\n",
+ "</div>"
+ ],
+ "text/plain": [
+ "label Multicore: Non-persistent mode + kernel config \\\n",
+ "parallel_fuzzers \n",
+ "1.0 10714.79 \n",
+ "2.0 20493.07 \n",
+ "3.0 29660.06 \n",
+ "4.0 37875.57 \n",
+ "5.0 46326.75 \n",
+ "6.0 54595.48 \n",
+ "7.0 62720.98 \n",
+ "8.0 70777.99 \n",
+ "9.0 74236.02 \n",
+ "10.0 78134.94 \n",
+ "11.0 81886.33 \n",
+ "12.0 85923.44 \n",
+ "13.0 89696.95 \n",
+ "14.0 93540.52 \n",
+ "15.0 97641.51 \n",
+ "16.0 101692.65 \n",
+ "17.0 101236.75 \n",
+ "18.0 101006.28 \n",
+ "19.0 99952.26 \n",
+ "20.0 99798.64 \n",
+ "21.0 99018.86 \n",
+ "22.0 98600.87 \n",
+ "23.0 98634.02 \n",
+ "24.0 98352.90 \n",
+ "25.0 98118.63 \n",
+ "26.0 97752.45 \n",
+ "27.0 97864.07 \n",
+ "28.0 97821.80 \n",
+ "29.0 97564.87 \n",
+ "30.0 98508.10 \n",
+ "31.0 98238.96 \n",
+ "32.0 98363.93 \n",
+ "33.0 96758.69 \n",
+ "34.0 96327.00 \n",
+ "35.0 95913.98 \n",
+ "36.0 95871.39 \n",
+ "\n",
+ "label Multicore: Persistent mode/shared memory + kernel config \\\n",
+ "parallel_fuzzers \n",
+ "1.0 120293.77 \n",
+ "2.0 231429.96 \n",
+ "3.0 346759.33 \n",
+ "4.0 455340.06 \n",
+ "5.0 568405.15 \n",
+ "6.0 678030.96 \n",
+ "7.0 782585.04 \n",
+ "8.0 893618.35 \n",
+ "9.0 956026.15 \n",
+ "10.0 984942.13 \n",
+ "11.0 1016758.62 \n",
+ "12.0 1053087.90 \n",
+ "13.0 1085797.87 \n",
+ "14.0 1110640.20 \n",
+ "15.0 1138984.22 \n",
+ "16.0 1168943.19 \n",
+ "17.0 1135093.91 \n",
+ "18.0 1160430.45 \n",
+ "19.0 1155769.97 \n",
+ "20.0 1150156.26 \n",
+ "21.0 1136873.58 \n",
+ "22.0 1112404.25 \n",
+ "23.0 1143131.72 \n",
+ "24.0 1143931.38 \n",
+ "25.0 1102090.61 \n",
+ "26.0 1116518.70 \n",
+ "27.0 1099224.19 \n",
+ "28.0 1114945.37 \n",
+ "29.0 1110889.91 \n",
+ "30.0 1058548.28 \n",
+ "31.0 1119804.85 \n",
+ "32.0 1118828.99 \n",
+ "33.0 1093426.61 \n",
+ "34.0 1108123.59 \n",
+ "35.0 1041486.52 \n",
+ "36.0 1092395.61 \n",
+ "\n",
+ "label Multicore: Persistent mode/shared memory without kernel config \\\n",
+ "parallel_fuzzers \n",
+ "1.0 90641.62 \n",
+ "2.0 178184.19 \n",
+ "3.0 262652.86 \n",
+ "4.0 339119.32 \n",
+ "5.0 420239.94 \n",
+ "6.0 498062.02 \n",
+ "7.0 578495.44 \n",
+ "8.0 661836.22 \n",
+ "9.0 684808.49 \n",
+ "10.0 707094.65 \n",
+ "11.0 732106.17 \n",
+ "12.0 752910.17 \n",
+ "13.0 776179.85 \n",
+ "14.0 797520.58 \n",
+ "15.0 822235.41 \n",
+ "16.0 843897.51 \n",
+ "17.0 843177.15 \n",
+ "18.0 844779.09 \n",
+ "19.0 846060.74 \n",
+ "20.0 847556.23 \n",
+ "21.0 844022.97 \n",
+ "22.0 845818.70 \n",
+ "23.0 844118.27 \n",
+ "24.0 837189.02 \n",
+ "25.0 834712.31 \n",
+ "26.0 836344.12 \n",
+ "27.0 827784.91 \n",
+ "28.0 828641.27 \n",
+ "29.0 826123.67 \n",
+ "30.0 817765.77 \n",
+ "31.0 816556.66 \n",
+ "32.0 812661.77 \n",
+ "33.0 805352.16 \n",
+ "34.0 815888.26 \n",
+ "35.0 812348.56 \n",
+ "36.0 817278.03 \n",
+ "\n",
+ "label Singlecore: Non-persistent mode + kernel config \\\n",
+ "parallel_fuzzers \n",
+ "1.0 9845.64 \n",
+ "2.0 9845.64 \n",
+ "3.0 9845.64 \n",
+ "4.0 9845.64 \n",
+ "5.0 9845.64 \n",
+ "6.0 9845.64 \n",
+ "7.0 9845.64 \n",
+ "8.0 9845.64 \n",
+ "9.0 9845.64 \n",
+ "10.0 9845.64 \n",
+ "11.0 9845.64 \n",
+ "12.0 9845.64 \n",
+ "13.0 9845.64 \n",
+ "14.0 9845.64 \n",
+ "15.0 9845.64 \n",
+ "16.0 9845.64 \n",
+ "17.0 9845.64 \n",
+ "18.0 9845.64 \n",
+ "19.0 9845.64 \n",
+ "20.0 9845.64 \n",
+ "21.0 9845.64 \n",
+ "22.0 9845.64 \n",
+ "23.0 9845.64 \n",
+ "24.0 9845.64 \n",
+ "25.0 9845.64 \n",
+ "26.0 9845.64 \n",
+ "27.0 9845.64 \n",
+ "28.0 9845.64 \n",
+ "29.0 9845.64 \n",
+ "30.0 9845.64 \n",
+ "31.0 9845.64 \n",
+ "32.0 9845.64 \n",
+ "33.0 9845.64 \n",
+ "34.0 9845.64 \n",
+ "35.0 9845.64 \n",
+ "36.0 9845.64 \n",
+ "\n",
+ "label Singlecore: Persistent mode/shared memory + kernel config \n",
+ "parallel_fuzzers \n",
+ "1.0 125682.73 \n",
+ "2.0 125682.73 \n",
+ "3.0 125682.73 \n",
+ "4.0 125682.73 \n",
+ "5.0 125682.73 \n",
+ "6.0 125682.73 \n",
+ "7.0 125682.73 \n",
+ "8.0 125682.73 \n",
+ "9.0 125682.73 \n",
+ "10.0 125682.73 \n",
+ "11.0 125682.73 \n",
+ "12.0 125682.73 \n",
+ "13.0 125682.73 \n",
+ "14.0 125682.73 \n",
+ "15.0 125682.73 \n",
+ "16.0 125682.73 \n",
+ "17.0 125682.73 \n",
+ "18.0 125682.73 \n",
+ "19.0 125682.73 \n",
+ "20.0 125682.73 \n",
+ "21.0 125682.73 \n",
+ "22.0 125682.73 \n",
+ "23.0 125682.73 \n",
+ "24.0 125682.73 \n",
+ "25.0 125682.73 \n",
+ "26.0 125682.73 \n",
+ "27.0 125682.73 \n",
+ "28.0 125682.73 \n",
+ "29.0 125682.73 \n",
+ "30.0 125682.73 \n",
+ "31.0 125682.73 \n",
+ "32.0 125682.73 \n",
+ "33.0 125682.73 \n",
+ "34.0 125682.73 \n",
+ "35.0 125682.73 \n",
+ "36.0 125682.73 "
+ ]
+ },
+ "execution_count": 148,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "pivotdf"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "You can totally ignore the code cell directly below (unless you're curious). It's just preparing Markdown for the block below it to render. Jupyter Notebooks aren't able to use code variables inside Markdown blocks, so I have to do this instead."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 149,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/markdown": [
+ "\n",
+ "### Line graph analysis\n",
+ "Here are a few things that jump out from the graph above. Let's start at the bottom of the graph.\n",
+ "\n",
+ "#### test-instr vs. test-instr-persist-shmem\n",
+ "\n",
+ "This graph is scaled so that the single-core, non-persistent-mode performance (9845 execs per second) is\n",
+ "represented as **1.0x**. If you build and run a fuzzer without creating a persistent mode harness for it, and without running fuzzers in parallel, this is the performance\n",
+ "you get on this machine.\n",
+ "\n",
+ "#### Multicore test-instr\n",
+ "\n",
+ "By running as many parallel fuzzers are there are CPU threads, we can reach 101692 execs per second, which is **10.3x** that base speed.\n",
+ "\n",
+ "#### Persistent mode + shared memory\n",
+ "\n",
+ "##### Singlecore\n",
+ "\n",
+ "By modifying the harness to use persistent mode with shared memory as described [here](https://github.com/AFLplusplus/AFLplusplus/blob/stable/instrumentation/README.persistent_mode.md#4-persistent-mode),\n",
+ "we end up with **12.8x** base speed. So -- perhaps counter-intuively -- if you have a choice between switching to using multiple cores or rewriting\n",
+ "the harness to use persistent mode on a single core, it is better (at least on this machine) to use persistent mode on a single core, than to use non-persistent mode on all cores.\n",
+ "\n",
+ "##### Multicore\n",
+ "\n",
+ "By scaling up that persistent mode with shared memory harness across cores, and with kernel mitigations still turned on (see next section), we get to\n",
+ "**86.1x** base speed.\n",
+ "\n",
+ "#### Kernel config\n",
+ "\n",
+ "By \"kernel config\", I'm referring to booting the Linux kernel with `mitigations=off`, which is a meta-parameter for disabling *all* hardware vulnerability meltdowns (such as Spectre,\n",
+ "Meltdown, Retbleed, etc) introduced in Linux v5.2. Disabling these results in a `execs_per_sec` increase of 321386 execs -- the difference between\n",
+ "118.7x (mitigations off) and 86.1x (mitigations on) base speed. Turning on mitigations\n",
+ "reduced the overall performance by 27%!\n",
+ "\n",
+ "One way to think about this is that the mitigations turn this 16-thread CPU into a 7-thread CPU, since the number of execs reached with 16 threads and mitigations on is around the same\n",
+ "number of execs reached with 7 threads and mitigations off.\n",
+ "\n",
+ "Or if we want to think in terms of cores, then the average number of execs gained per core in the initial eight is 110474 execs per sec, but the loss due to\n",
+ "mitigations is 321386 execs per sec, which is the averaged performance of 2.9 cores.\n",
+ "\n",
+ "With kernel mitigations turned off, we reach our highest available execs_per_sec speed on this machine, which is **118.7x** higher\n",
+ "than where we started from.\n",
+ "\n",
+ "#### How many parallel fuzzers should we use on this machine?\n",
+ "\n",
+ "* Using >16 is worse than using 16. Makes sense.\n",
+ "* So, we should use the number of CPUs in /proc/cpuinfo (threads) to get the best performance. But if we did halve the number of\n",
+ " fuzzers, we would surprisingly only lose 23%\n",
+ " of performance. This could be a good tradeoff in terms of cost.\n"
+ ],
+ "text/plain": [
+ "<IPython.core.display.Markdown object>"
+ ]
+ },
+ "execution_count": 149,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "# (You can ignore reading this code cell.)\n",
+ "from IPython.display import Markdown as md\n",
+ "singlecore_base_execs = pivotdf.iloc[0][\"Singlecore: Non-persistent mode + kernel config\"]\n",
+ "singlecore_persist_execs = pivotdf.iloc[0][\"Singlecore: Persistent mode/shared memory + kernel config\"]\n",
+ "multicore_fuzzers_max_execs = int(pivotdf[\"Multicore: Persistent mode/shared memory + kernel config\"].idxmax())\n",
+ "multicore_base_max_execs = pivotdf[\"Multicore: Non-persistent mode + kernel config\"].max()\n",
+ "factor_for_execs = lambda execs: round(execs / singlecore_base_execs, 1)\n",
+ "\n",
+ "multicore_persistent_without_mitigations_label = \"Multicore: Persistent mode/shared memory + kernel config\"\n",
+ "multicore_max_execs_mitigations_off = pivotdf[multicore_persistent_without_mitigations_label].max()\n",
+ "multicore_max_execs_mitigations_off_only_cores = pivotdf.loc[multicore_fuzzers_max_execs / 2][multicore_persistent_without_mitigations_label]\n",
+ "multicore_max_execs_mitigations_on = pivotdf[\"Multicore: Persistent mode/shared memory without kernel config\"].max()\n",
+ "multicore_avg_gain_per_core = pivotdf.loc[pivotdf.index <= 8][\"Multicore: Persistent mode/shared memory + kernel config\"].diff().dropna().mean()\n",
+ "mitigations_off_increase = int(multicore_max_execs_mitigations_off - multicore_max_execs_mitigations_on)\n",
+ "\n",
+ "md(f\"\"\"\n",
+ "### Line graph analysis\n",
+ "Here are a few things that jump out from the graph above. Let's start at the bottom of the graph.\n",
+ "\n",
+ "#### test-instr vs. test-instr-persist-shmem\n",
+ "\n",
+ "This graph is scaled so that the single-core, non-persistent-mode performance ({int(singlecore_base_execs)} execs per second) is\n",
+ "represented as **1.0x**. If you build and run a fuzzer without creating a persistent mode harness for it, and without running fuzzers in parallel, this is the performance\n",
+ "you get on this machine.\n",
+ "\n",
+ "#### Multicore test-instr\n",
+ "\n",
+ "By running as many parallel fuzzers are there are CPU threads, we can reach {int(multicore_base_max_execs)} execs per second, which is **{factor_for_execs(multicore_base_max_execs)}x** that base speed.\n",
+ "\n",
+ "#### Persistent mode + shared memory\n",
+ "\n",
+ "##### Singlecore\n",
+ "\n",
+ "By modifying the harness to use persistent mode with shared memory as described [here](https://github.com/AFLplusplus/AFLplusplus/blob/stable/instrumentation/README.persistent_mode.md#4-persistent-mode),\n",
+ "we end up with **{factor_for_execs(singlecore_persist_execs)}x** base speed. So -- perhaps counter-intuively -- if you have a choice between switching to using multiple cores or rewriting\n",
+ "the harness to use persistent mode on a single core, it is better (at least on this machine) to use persistent mode on a single core, than to use non-persistent mode on all cores.\n",
+ "\n",
+ "##### Multicore\n",
+ "\n",
+ "By scaling up that persistent mode with shared memory harness across cores, and with kernel mitigations still turned on (see next section), we get to\n",
+ "**{factor_for_execs(multicore_max_execs_mitigations_on)}x** base speed.\n",
+ "\n",
+ "#### Kernel config\n",
+ "\n",
+ "By \"kernel config\", I'm referring to booting the Linux kernel with `mitigations=off`, which is a meta-parameter for disabling *all* hardware vulnerability meltdowns (such as Spectre,\n",
+ "Meltdown, Retbleed, etc) introduced in Linux v5.2. Disabling these results in a `execs_per_sec` increase of {mitigations_off_increase} execs -- the difference between\n",
+ "{factor_for_execs(multicore_max_execs_mitigations_off)}x (mitigations off) and {factor_for_execs(multicore_max_execs_mitigations_on)}x (mitigations on) base speed. Turning on mitigations\n",
+ "reduced the overall performance by {abs(round(((multicore_max_execs_mitigations_on - multicore_max_execs_mitigations_off) / multicore_max_execs_mitigations_off) * 100))}%!\n",
+ "\n",
+ "One way to think about this is that the mitigations turn this 16-thread CPU into a 7-thread CPU, since the number of execs reached with 16 threads and mitigations on is around the same\n",
+ "number of execs reached with 7 threads and mitigations off.\n",
+ "\n",
+ "Or if we want to think in terms of cores, then the average number of execs gained per core in the initial eight is {int(multicore_avg_gain_per_core)} execs per sec, but the loss due to\n",
+ "mitigations is {mitigations_off_increase} execs per sec, which is the averaged performance of {round(mitigations_off_increase / multicore_avg_gain_per_core, 1)} cores.\n",
+ "\n",
+ "With kernel mitigations turned off, we reach our highest available execs_per_sec speed on this machine, which is **{factor_for_execs(multicore_max_execs_mitigations_off)}x** higher\n",
+ "than where we started from.\n",
+ "\n",
+ "#### How many parallel fuzzers should we use on this machine?\n",
+ "\n",
+ "* Using >16 is worse than using 16. Makes sense.\n",
+ "* So, we should use the number of CPUs in /proc/cpuinfo (threads) to get the best performance. But if we did halve the number of\n",
+ " fuzzers, we would surprisingly only lose {abs(int(((multicore_max_execs_mitigations_off_only_cores - multicore_max_execs_mitigations_off) / multicore_max_execs_mitigations_off) * 100))}%\n",
+ " of performance. This could be a good tradeoff in terms of cost.\n",
+ "\"\"\")\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "### Example with more cores\n",
+ "\n",
+ "While there was some nuance here, the answer was pretty straightforward -- use the number of CPU threads you have access to. What if there were more threads? Here the experiment is repeated on an AWS EC2 \"r6a.48xlarge\" spot instance with 192 vCPUs:"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 150,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "<div>\n",
+ "<style scoped>\n",
+ " .dataframe tbody tr th:only-of-type {\n",
+ " vertical-align: middle;\n",
+ " }\n",
+ "\n",
+ " .dataframe tbody tr th {\n",
+ " vertical-align: top;\n",
+ " }\n",
+ "\n",
+ " .dataframe thead th {\n",
+ " text-align: right;\n",
+ " }\n",
+ "</style>\n",
+ "<table border=\"1\" class=\"dataframe\">\n",
+ " <thead>\n",
+ " <tr style=\"text-align: right;\">\n",
+ " <th></th>\n",
+ " <th>config.afl_persistent_config</th>\n",
+ " <th>config.afl_system_config</th>\n",
+ " <th>config.afl_version</th>\n",
+ " <th>config.comment</th>\n",
+ " <th>config.compiler</th>\n",
+ " <th>config.target_arch</th>\n",
+ " <th>hardware.cpu_fastest_core_mhz</th>\n",
+ " <th>hardware.cpu_model</th>\n",
+ " <th>hardware.cpu_threads</th>\n",
+ " <th>targets.test-instr-persist-shmem.multicore.execs_per_sec</th>\n",
+ " <th>targets.test-instr-persist-shmem.multicore.execs_total</th>\n",
+ " <th>targets.test-instr-persist-shmem.multicore.fuzzers_used</th>\n",
+ " </tr>\n",
+ " </thead>\n",
+ " <tbody>\n",
+ " <tr>\n",
+ " <th>223</th>\n",
+ " <td>True</td>\n",
+ " <td>True</td>\n",
+ " <td>++4.09a</td>\n",
+ " <td>AWS EC2 r6a.48xlarge spot instance</td>\n",
+ " <td>clang version 15.0.7 (Amazon Linux 15.0.7-3.am...</td>\n",
+ " <td>x86_64-amazon-linux-gnu</td>\n",
+ " <td>3514.326</td>\n",
+ " <td>AMD EPYC 7R13 Processor</td>\n",
+ " <td>192</td>\n",
+ " <td>119469.35</td>\n",
+ " <td>1194813.0</td>\n",
+ " <td>1.0</td>\n",
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+ " <td>True</td>\n",
+ " <td>True</td>\n",
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+ " <td>clang version 15.0.7 (Amazon Linux 15.0.7-3.am...</td>\n",
+ " <td>x86_64-amazon-linux-gnu</td>\n",
+ " <td>3599.748</td>\n",
+ " <td>AMD EPYC 7R13 Processor</td>\n",
+ " <td>192</td>\n",
+ " <td>237177.20</td>\n",
+ " <td>2372250.0</td>\n",
+ " <td>2.0</td>\n",
+ " </tr>\n",
+ " </tbody>\n",
+ "</table>\n",
+ "</div>"
+ ],
+ "text/plain": [
+ " config.afl_persistent_config config.afl_system_config \\\n",
+ "223 True True \n",
+ "224 True True \n",
+ "\n",
+ " config.afl_version config.comment \\\n",
+ "223 ++4.09a AWS EC2 r6a.48xlarge spot instance \n",
+ "224 ++4.09a AWS EC2 r6a.48xlarge spot instance \n",
+ "\n",
+ " config.compiler \\\n",
+ "223 clang version 15.0.7 (Amazon Linux 15.0.7-3.am... \n",
+ "224 clang version 15.0.7 (Amazon Linux 15.0.7-3.am... \n",
+ "\n",
+ " config.target_arch hardware.cpu_fastest_core_mhz \\\n",
+ "223 x86_64-amazon-linux-gnu 3514.326 \n",
+ "224 x86_64-amazon-linux-gnu 3599.748 \n",
+ "\n",
+ " hardware.cpu_model hardware.cpu_threads \\\n",
+ "223 AMD EPYC 7R13 Processor 192 \n",
+ "224 AMD EPYC 7R13 Processor 192 \n",
+ "\n",
+ " targets.test-instr-persist-shmem.multicore.execs_per_sec \\\n",
+ "223 119469.35 \n",
+ "224 237177.20 \n",
+ "\n",
+ " targets.test-instr-persist-shmem.multicore.execs_total \\\n",
+ "223 1194813.0 \n",
+ "224 2372250.0 \n",
+ "\n",
+ " targets.test-instr-persist-shmem.multicore.fuzzers_used \n",
+ "223 1.0 \n",
+ "224 2.0 "
+ ]
+ },
+ "execution_count": 150,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "r6a = df.query(\"`config.comment` == 'AWS EC2 r6a.48xlarge spot instance'\")\n",
+ "r6a.head(2).dropna(axis=1)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 151,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "<div>\n",
+ "<style scoped>\n",
+ " .dataframe tbody tr th:only-of-type {\n",
+ " vertical-align: middle;\n",
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+ "<table border=\"1\" class=\"dataframe\">\n",
+ " <thead>\n",
+ " <tr style=\"text-align: right;\">\n",
+ " <th></th>\n",
+ " <th>execs_per_sec</th>\n",
+ " <th>parallel_fuzzers</th>\n",
+ " <th>afl_persistent_config</th>\n",
+ " <th>afl_system_config</th>\n",
+ " <th>label</th>\n",
+ " </tr>\n",
+ " </thead>\n",
+ " <tbody>\n",
+ " <tr>\n",
+ " <th>0</th>\n",
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+ " </tbody>\n",
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+ "</div>"
+ ],
+ "text/plain": [
+ " execs_per_sec parallel_fuzzers afl_persistent_config afl_system_config \\\n",
+ "0 119469.35 1.0 True True \n",
+ "1 237177.20 2.0 True True \n",
+ "\n",
+ " label \n",
+ "0 Multicore: Persistent mode/shared memory + ker... \n",
+ "1 Multicore: Persistent mode/shared memory + ker... "
+ ]
+ },
+ "execution_count": 151,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "r6a_graphdf = build_graphdf_from_query(r6a)\n",
+ "r6a_graphdf.head(2)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 152,
+ "metadata": {},
+ "outputs": [
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font-size: 12px; fill: rgb(42, 63, 95); fill-opacity: 1; white-space: pre; opacity: 1;\" transform=\"translate(0,229.8)\">74x</text></g><g class=\"ytick\"><text text-anchor=\"end\" x=\"79\" y=\"4.199999999999999\" style=\"font-family: 'Open Sans', verdana, arial, sans-serif; font-size: 12px; fill: rgb(42, 63, 95); fill-opacity: 1; white-space: pre; opacity: 1;\" transform=\"translate(0,190.2)\">104x</text></g><g class=\"ytick\"><text text-anchor=\"end\" x=\"79\" y=\"4.199999999999999\" style=\"font-family: 'Open Sans', verdana, arial, sans-serif; font-size: 12px; fill: rgb(42, 63, 95); fill-opacity: 1; white-space: pre; opacity: 1;\" transform=\"translate(0,150.6)\">135x</text></g><g class=\"ytick\"><text text-anchor=\"end\" x=\"79\" y=\"4.199999999999999\" style=\"font-family: 'Open Sans', verdana, arial, sans-serif; font-size: 12px; fill: rgb(42, 63, 95); fill-opacity: 1; white-space: pre; opacity: 1;\" transform=\"translate(0,111)\">166x</text></g></g><g class=\"overaxes-above\"/></g></g><g class=\"polarlayer\"/><g class=\"smithlayer\"/><g class=\"ternarylayer\"/><g class=\"geolayer\"/><g class=\"funnelarealayer\"/><g class=\"pielayer\"/><g class=\"iciclelayer\"/><g class=\"treemaplayer\"/><g class=\"sunburstlayer\"/><g class=\"glimages\"/><defs id=\"topdefs-cbb66b\"><g class=\"clips\"/><clipPath id=\"legendcbb66b\"><rect width=\"356\" height=\"48\" x=\"0\" y=\"0\"/></clipPath></defs><g class=\"layer-above\"><g class=\"imagelayer\"/><g class=\"shapelayer\"/></g><g class=\"infolayer\"><g class=\"legend\" pointer-events=\"all\" transform=\"translate(831.74,100)\"><rect class=\"bg\" shape-rendering=\"crispEdges\" width=\"356\" height=\"48\" x=\"0\" y=\"0\" style=\"stroke: rgb(68, 68, 68); stroke-opacity: 1; fill: rgb(255, 255, 255); fill-opacity: 1; stroke-width: 0px;\"/><g class=\"scrollbox\" transform=\"\" clip-path=\"url(#legendcbb66b)\"><text class=\"legendtitletext\" text-anchor=\"start\" x=\"2\" y=\"18.2\" style=\"font-family: 'Open Sans', verdana, arial, sans-serif; font-size: 14px; fill: rgb(42, 63, 95); fill-opacity: 1; white-space: pre;\">Configuration</text><g class=\"groups\" transform=\"\"><g class=\"traces\" transform=\"translate(0,32.7)\" style=\"opacity: 1;\"><text class=\"legendtext\" text-anchor=\"start\" x=\"40\" y=\"4.680000000000001\" style=\"font-family: 'Open Sans', verdana, arial, sans-serif; font-size: 12px; fill: rgb(42, 63, 95); fill-opacity: 1; white-space: pre;\">Multicore: Persistent mode/shared memory + kernel config</text><g class=\"layers\" style=\"opacity: 1;\"><g class=\"legendfill\"/><g class=\"legendlines\"><path class=\"js-line\" d=\"M5,0h30\" style=\"fill: none; stroke: rgb(99, 110, 250); stroke-opacity: 1; stroke-width: 2px;\"/></g><g class=\"legendsymbols\"><g class=\"legendpoints\"/></g></g><rect class=\"legendtoggle\" x=\"0\" y=\"-9.5\" width=\"350.46875\" height=\"19\" style=\"fill: rgb(0, 0, 0); fill-opacity: 0;\"/></g></g></g><rect class=\"scrollbar\" rx=\"20\" ry=\"3\" width=\"0\" height=\"0\" x=\"0\" y=\"0\" style=\"fill: rgb(128, 139, 164); fill-opacity: 1;\"/></g><g class=\"g-gtitle\"><text class=\"gtitle\" x=\"60\" y=\"50\" text-anchor=\"start\" dy=\"0em\" style=\"font-family: 'Open Sans', verdana, arial, sans-serif; font-size: 17px; fill: rgb(42, 63, 95); opacity: 1; font-weight: normal; white-space: pre;\">Fuzzer performance</text></g><g class=\"g-xtitle\"><text class=\"xtitle\" x=\"448.5\" y=\"371.659375\" text-anchor=\"middle\" style=\"font-family: 'Open Sans', verdana, arial, sans-serif; font-size: 14px; fill: rgb(42, 63, 95); opacity: 1; font-weight: normal; white-space: pre;\">Number of parallel fuzzers</text></g><g class=\"g-ytitle\"><text class=\"ytitle\" transform=\"rotate(-90,28.668750000000003,210)\" x=\"28.668750000000003\" y=\"210\" text-anchor=\"middle\" style=\"font-family: 'Open Sans', verdana, arial, sans-serif; font-size: 14px; fill: rgb(42, 63, 95); opacity: 1; font-weight: normal; white-space: pre;\">Fuzz target executions per second</text></g></g></svg>"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "r6a_pivotdf = r6a_graphdf.pivot(index=\"parallel_fuzzers\", columns=\"label\", values=\"execs_per_sec\")\n",
+ "r6a_fig = r6a_pivotdf.plot(\n",
+ " title=\"Fuzzer performance\",\n",
+ " labels={\n",
+ " \"label\": \"Configuration\",\n",
+ " \"parallel_fuzzers\": \"Number of parallel fuzzers\",\n",
+ " \"value\": \"Fuzz target executions per second\"\n",
+ " }\n",
+ ")\n",
+ "\n",
+ "# Compute tick values and their labels for the primary Y-axis\n",
+ "tickvals = np.linspace(r6a_graphdf['execs_per_sec'].min(), r6a_graphdf['execs_per_sec'].max(), 6)\n",
+ "ticktext = [f\"{val:.0f}x\" for val in tickvals / graphdf['execs_per_sec'].min()]\n",
+ "# Update the primary Y-axis with custom tick labels\n",
+ "r6a_fig.update_yaxes(tickvals=tickvals, ticktext=ticktext)\n",
+ "r6a_fig.update_xaxes(tickvals=list(range(0,200+1, 4)))\n",
+ "r6a_fig.update_layout(width=1200, height=400)\n",
+ "r6a_fig.show(\"svg\")"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "### Line graph analysis\n",
+ "\n",
+ "This is a shocking result for a 192 vCPU machine -- our optimal number of parallel fuzzers was 16! Using 32 parallel fuzzers gives less performance than using 8 fuzzers. Using 192 parallel fuzzers (the physical number of threads in this machine) gives the same performance as using 4 fuzzers.\n",
+ "\n",
+ "This is clearly a cautionary tale about measuring before simply using the number of hardware threads in your machine. But does this mean that AFL++ is a bad fuzzer, or that AWS tricked us and gave us a 16-thread machine instead of a 192-thread one?\n",
+ "\n",
+ "No, probably not -- the most likely cause here (other than a horrible bug) may be that we're already saturating the Linux kernel's ability to service system calls (although we're definitely hitting such a limit way earlier than I expected). A good way to test this theory would be to run more system-call-servicers (read: kernels!) at once on this machine; one way to do that is to use hardware virtualization with KVM. "
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 3",
+ "language": "python",
+ "name": "python3"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 3
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython3",
+ "version": "3.11.5"
+ },
+ "orig_nbformat": 4
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/benchmark/benchmark.py b/benchmark/benchmark.py
new file mode 100755
index 0000000..0685ced
--- /dev/null
+++ b/benchmark/benchmark.py
@@ -0,0 +1,281 @@
+#!/usr/bin/env python3
+# Part of the aflplusplus project, requires Python 3.8+.
+# Author: Chris Ball <chris@printf.net>, ported from Marc "van Hauser" Heuse's "benchmark.sh".
+import argparse, asyncio, json, multiprocessing, os, platform, re, shutil, sys
+from dataclasses import asdict, dataclass
+from decimal import Decimal
+from enum import Enum, auto
+from pathlib import Path
+from typing import Dict, List, Optional, Tuple
+
+blue = lambda text: f"\033[1;94m{text}\033[0m"; gray = lambda text: f"\033[1;90m{text}\033[0m"
+green = lambda text: f"\033[0;32m{text}\033[0m"; red = lambda text: f"\033[0;31m{text}\033[0m"
+yellow = lambda text: f"\033[0;33m{text}\033[0m"
+
+class Mode(Enum):
+ multicore = auto()
+ singlecore = auto()
+
+@dataclass
+class Target:
+ source: Path
+ binary: Path
+
+@dataclass
+class Run:
+ execs_per_sec: float
+ execs_total: float
+ fuzzers_used: int
+
+@dataclass
+class Config:
+ afl_persistent_config: bool
+ afl_system_config: bool
+ afl_version: Optional[str]
+ comment: str
+ compiler: str
+ target_arch: str
+
+@dataclass
+class Hardware:
+ cpu_fastest_core_mhz: float
+ cpu_model: str
+ cpu_threads: int
+
+@dataclass
+class Results:
+ config: Optional[Config]
+ hardware: Optional[Hardware]
+ targets: Dict[str, Dict[str, Optional[Run]]]
+
+all_modes = [Mode.singlecore, Mode.multicore]
+all_targets = [
+ Target(source=Path("../utils/persistent_mode/test-instr.c").resolve(), binary=Path("test-instr-persist-shmem")),
+ Target(source=Path("../test-instr.c").resolve(), binary=Path("test-instr"))
+]
+modes = [mode.name for mode in all_modes]
+targets = [str(target.binary) for target in all_targets]
+cpu_count = multiprocessing.cpu_count()
+env_vars = {
+ "AFL_DISABLE_TRIM": "1", "AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES": "1", "AFL_FAST_CAL": "1",
+ "AFL_NO_UI": "1", "AFL_TRY_AFFINITY": "1", "PATH": f'{str(Path("../").resolve())}:{os.environ["PATH"]}',
+}
+
+parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+parser.add_argument("-b", "--basedir", help="directory to use for temp files", type=str, default="/tmp/aflpp-benchmark")
+parser.add_argument("-d", "--debug", help="show verbose debugging output", action="store_true")
+parser.add_argument("-r", "--runs", help="how many runs to average results over", type=int, default=3)
+parser.add_argument("-f", "--fuzzers", help="how many afl-fuzz workers to use", type=int, default=cpu_count)
+parser.add_argument("-m", "--mode", help="pick modes", action="append", default=modes, choices=modes)
+parser.add_argument("-c", "--comment", help="add a comment about your setup", type=str, default="")
+parser.add_argument("--cpu", help="override the detected CPU model name", type=str, default="")
+parser.add_argument("--mhz", help="override the detected CPU MHz", type=str, default="")
+parser.add_argument(
+ "-t", "--target", help="pick targets", action="append", default=["test-instr-persist-shmem"], choices=targets
+)
+args = parser.parse_args()
+# Really unsatisfying argparse behavior: we want a default and to allow multiple choices, but if there's a manual choice
+# it should override the default. Seems like we have to remove the default to get that and have correct help text?
+if len(args.target) > 1:
+ args.target = args.target[1:]
+if len(args.mode) > 2:
+ args.mode = args.mode[2:]
+
+chosen_modes = [mode for mode in all_modes if mode.name in args.mode]
+chosen_targets = [target for target in all_targets if str(target.binary) in args.target]
+results = Results(config=None, hardware=None, targets={
+ str(t.binary): {m.name: None for m in chosen_modes} for t in chosen_targets}
+)
+debug = lambda text: args.debug and print(blue(text))
+
+async def clean_up_tempfiles() -> None:
+ shutil.rmtree(f"{args.basedir}/in")
+ for target in chosen_targets:
+ target.binary.unlink()
+ for mode in chosen_modes:
+ shutil.rmtree(f"{args.basedir}/out-{mode.name}-{str(target.binary)}")
+
+async def check_afl_persistent() -> bool:
+ with open("/proc/cmdline", "r") as cmdline:
+ return "mitigations=off" in cmdline.read().strip().split(" ")
+
+async def check_afl_system() -> bool:
+ sysctl = next((s for s in ["sysctl", "/sbin/sysctl"] if shutil.which(s)), None)
+ if sysctl:
+ (returncode, stdout, _) = await run_command([sysctl, "kernel.randomize_va_space"])
+ return returncode == 0 and stdout.decode().rstrip().split(" = ")[1] == "0"
+ return False
+
+async def prep_env() -> None:
+ Path(f"{args.basedir}/in").mkdir(exist_ok=True, parents=True)
+ with open(f"{args.basedir}/in/in.txt", "wb") as seed:
+ seed.write(b"\x00" * 10240)
+
+async def compile_target(source: Path, binary: Path) -> None:
+ print(f" [*] Compiling the {binary} fuzzing harness for the benchmark to use.")
+ (returncode, stdout, stderr) = await run_command(
+ [str(Path("../afl-clang-lto").resolve()), "-o", str(Path(binary.resolve())), str(Path(source).resolve())]
+ )
+ if returncode == 0:
+ return
+ print(yellow(f" [*] afl-clang-lto was unable to compile; falling back to afl-cc."))
+ (returncode, stdout, stderr) = await run_command(
+ [str(Path("../afl-cc").resolve()), "-o", str(Path(binary.resolve())), str(Path(source).resolve())]
+ )
+ if returncode != 0:
+ sys.exit(red(f" [*] Error: afl-cc is unable to compile: {stderr.decode()} {stdout.decode()}"))
+
+async def run_command(cmd: List[str]) -> Tuple[Optional[int], bytes, bytes]:
+ debug(f"Launching command: {cmd} with env {env_vars}")
+ p = await asyncio.create_subprocess_exec(
+ *cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE, env=env_vars
+ )
+ stdout, stderr = await p.communicate()
+ debug(f"Output: {stdout.decode()} {stderr.decode()}")
+ return (p.returncode, stdout, stderr)
+
+async def check_deps() -> None:
+ if not (plat := platform.system()) == "Linux": sys.exit(red(f" [*] {plat} is not supported by this script yet."))
+ if not os.access(Path("../afl-fuzz").resolve(), os.X_OK) and os.access(Path("../afl-cc").resolve(), os.X_OK) and (
+ os.path.exists(Path("../SanitizerCoveragePCGUARD.so").resolve())):
+ sys.exit(red(" [*] Compile AFL++: we need afl-fuzz, afl-clang-fast and SanitizerCoveragePCGUARD.so built."))
+
+ (returncode, stdout, stderr) = await run_command([str(Path("../afl-cc").resolve()), "-v"])
+ if returncode != 0:
+ sys.exit(red(f" [*] Error: afl-cc -v returned: {stderr.decode()} {stdout.decode()}"))
+ compiler = ""
+ target_arch = ""
+ for line in stderr.decode().split("\n"):
+ if "clang version" in line:
+ compiler = line
+ elif m := re.match(r"^Target: (.*)", line):
+ target_arch = m.group(1)
+
+ # Pick some sample settings from afl-{persistent,system}-config to try to see whether they were run.
+ afl_pc = await check_afl_persistent()
+ afl_sc = await check_afl_system()
+ if not afl_pc:
+ print(yellow(f" [*] afl-persistent-config did not run; run it to improve performance (and decrease security)."))
+ if not afl_sc:
+ print(yellow(f" [*] afl-system-config did not run; run it to improve performance (and decrease security)."))
+ results.config = Config(afl_persistent_config=afl_pc, afl_system_config=afl_sc, afl_version="",
+ comment=args.comment, compiler=compiler, target_arch=target_arch)
+
+async def colon_values(filename: str, searchKey: str) -> List[str]:
+ """Return a colon-separated value given a key in a file, e.g. 'cpu MHz : 4976.109')"""
+ with open(filename, "r") as fh:
+ kv_pairs = (line.split(": ", 1) for line in fh if ": " in line)
+ v_list = [v.rstrip() for k, v in kv_pairs if k.rstrip() == searchKey]
+ return v_list
+
+async def describe_afl_config() -> str:
+ if results.config is None:
+ return "unknown"
+ elif results.config.afl_persistent_config and results.config.afl_system_config:
+ return "both"
+ elif results.config.afl_persistent_config:
+ return "persistent"
+ elif results.config.afl_system_config:
+ return "system"
+ else:
+ return "none"
+
+async def save_benchmark_results() -> None:
+ """Append a single row to the benchmark results in JSON Lines format (which is simple to write and diff)."""
+ with open("benchmark-results.jsonl", "a") as jsonfile:
+ json.dump(asdict(results), jsonfile, sort_keys=True)
+ jsonfile.write("\n")
+ print(blue(f" [*] Results have been written to the {jsonfile.name} file."))
+ with open("COMPARISON.md", "r+") as comparisonfile:
+ described_config = await describe_afl_config()
+ aflconfig = described_config.ljust(12)
+ if results.hardware is None:
+ return
+ cpu_model = results.hardware.cpu_model.ljust(51)
+ if cpu_model in comparisonfile.read():
+ print(blue(f" [*] Results have not been written to the COMPARISON.md file; this CPU is already present."))
+ return
+ cpu_mhz = str(round(results.hardware.cpu_fastest_core_mhz)).ljust(5)
+ if not "test-instr-persist-shmem" in results.targets or \
+ not "multicore" in results.targets["test-instr-persist-shmem"] or \
+ not "singlecore" in results.targets["test-instr-persist-shmem"] or \
+ results.targets["test-instr-persist-shmem"]["singlecore"] is None or \
+ results.targets["test-instr-persist-shmem"]["multicore"] is None:
+ return
+ single = str(round(results.targets["test-instr-persist-shmem"]["singlecore"].execs_per_sec)).ljust(10)
+ multi = str(round(results.targets["test-instr-persist-shmem"]["multicore"].execs_per_sec)).ljust(9)
+ cores = str(args.fuzzers).ljust(7)
+ comparisonfile.write(f"{cpu_model} | {cpu_mhz} | {cores} | {single} | {multi} | {aflconfig} |\n")
+ print(blue(f" [*] Results have been written to the COMPARISON.md file."))
+ with open("COMPARISON.md", "r") as comparisonfile:
+ print(comparisonfile.read())
+
+
+async def main() -> None:
+ try:
+ await clean_up_tempfiles()
+ except FileNotFoundError:
+ pass
+ await check_deps()
+ if args.mhz:
+ cpu_mhz = float(args.mhz)
+ else:
+ cpu_mhz_str = await colon_values("/proc/cpuinfo", "cpu MHz")
+ if len(cpu_mhz_str) == 0:
+ cpu_mhz_str.append("0")
+ cpu_mhz = max([float(c) for c in cpu_mhz_str]) # use the fastest CPU MHz for now
+ if args.cpu:
+ cpu_model = [args.cpu]
+ else:
+ cpu_model = await colon_values("/proc/cpuinfo", "model name") or [""]
+ results.hardware = Hardware(cpu_fastest_core_mhz=cpu_mhz, cpu_model=cpu_model[0], cpu_threads=cpu_count)
+ await prep_env()
+ print(f" [*] Ready, starting benchmark...")
+ for target in chosen_targets:
+ await compile_target(target.source, target.binary)
+ binary = str(target.binary)
+ for mode in chosen_modes:
+ if mode == Mode.multicore:
+ print(blue(f" [*] Using {args.fuzzers} fuzzers for multicore fuzzing "), end="")
+ print(blue("(use --fuzzers to override)." if args.fuzzers == cpu_count else f"(the default is {cpu_count})"))
+ execs_per_sec, execs_total = ([] for _ in range(2))
+ for run_idx in range(0, args.runs):
+ print(gray(f" [*] {mode.name} {binary} run {run_idx+1} of {args.runs}, execs/s: "), end="", flush=True)
+ fuzzers = range(0, args.fuzzers if mode == Mode.multicore else 1)
+ outdir = f"{args.basedir}/out-{mode.name}-{binary}"
+ cmds = []
+ for fuzzer_idx, afl in enumerate(fuzzers):
+ name = ["-o", outdir, "-M" if fuzzer_idx == 0 else "-S", str(afl)]
+ cmds.append(["afl-fuzz", "-i", f"{args.basedir}/in"] + name + ["-s", "123", "-V10", "-D", f"./{binary}"])
+ # Prepare the afl-fuzz tasks, and then block while waiting for them to finish.
+ fuzztasks = [run_command(cmds[cpu]) for cpu in fuzzers]
+ await asyncio.gather(*fuzztasks)
+ afl_versions = await colon_values(f"{outdir}/0/fuzzer_stats", "afl_version")
+ if results.config:
+ results.config.afl_version = afl_versions[0]
+ # Our score is the sum of all execs_per_sec entries in fuzzer_stats files for the run.
+ sectasks = [colon_values(f"{outdir}/{afl}/fuzzer_stats", "execs_per_sec") for afl in fuzzers]
+ all_execs_per_sec = await asyncio.gather(*sectasks)
+ execs = sum([Decimal(count[0]) for count in all_execs_per_sec])
+ print(green(execs))
+ execs_per_sec.append(execs)
+ # Also gather execs_total and total_run_time for this run.
+ exectasks = [colon_values(f"{outdir}/{afl}/fuzzer_stats", "execs_done") for afl in fuzzers]
+ all_execs_total = await asyncio.gather(*exectasks)
+ execs_total.append(sum([Decimal(count[0]) for count in all_execs_total]))
+
+ # (Using float() because Decimal() is not JSON-serializable.)
+ avg_afl_execs_per_sec = round(Decimal(sum(execs_per_sec) / len(execs_per_sec)), 2)
+ afl_execs_total = int(sum([Decimal(execs) for execs in execs_total]))
+ run = Run(execs_per_sec=float(avg_afl_execs_per_sec), execs_total=afl_execs_total, fuzzers_used=len(fuzzers))
+ results.targets[binary][mode.name] = run
+ print(f" [*] Average execs/sec for this test across all runs was: {green(avg_afl_execs_per_sec)}")
+ if (((max(execs_per_sec) - min(execs_per_sec)) / avg_afl_execs_per_sec) * 100) > 15:
+ print(yellow(" [*] The difference between your slowest and fastest runs was >15%, maybe try again?"))
+
+ await clean_up_tempfiles()
+ await save_benchmark_results()
+
+if __name__ == "__main__":
+ asyncio.run(main())
+
diff --git a/docs/Changelog.md b/docs/Changelog.md
index facf219..48003f4 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -3,7 +3,101 @@
This is the list of all noteworthy changes made in every public
release of the tool. See README.md for the general instruction manual.
-### Version ++4.07a (dev)
+### Version ++4.10c (release)
+ - afl-fuzz:
+ - default power schedule is now EXPLORE, due a fix in fast schedules
+ explore is slightly better now.
+ - fixed minor issues in the mutation engine, thanks to @futhewo for
+ reporting!
+ - better deterministic fuzzing is now available, benchmarks have shown
+ to improve fuzzing. Enable with -D. Thanks to @kdsjZh for the PR!
+ - afl-cc:
+ - large rewrite by @SonicStark which fixes a few corner cases, thanks!
+ - LTO mode now requires llvm 12+
+ - workaround for ASAN with gcc_plugin mode
+ - instrumentation:
+ - LLVM 18 support, thanks to @devnexen!
+ - Injection (SQL, LDAP, XSS) fuzzing feature now available, see
+ `instrumentation/README.injections.md` how to activate/use/expand.
+ - compcov/LAF-intel:
+ - floating point splitting bug fix by @hexcoder
+ - due a bug in LLVM 17 integer splitting is disabled there!
+ - when splitting floats was selected, integers were always split as well,
+ fixed to require AFL_LLVM_LAF_SPLIT_COMPARES or _ALL as it should
+ - dynamic instrumentation filtering for LLVM NATIVE, thanks @Mozilla!
+ see utils/dynamic_covfilter/README.md
+ - qemu_mode:
+ - plugins are now activated by default and a new module is included that
+ produces drcov compatible traces for lighthouse/lightkeeper/...
+ thanks to @JRomainG to submitting!
+ - updated Nyx checkout (fixes a bug) and some QOL
+ - updated the custom grammar mutator
+ - document afl-cmin does not work on macOS (but afl-cmin.bash does)
+
+### Version ++4.09c (release)
+ - afl-fuzz:
+ - fixed the new mutation implementation for two bugs
+ - added `AFL_FINAL_SYNC` which forces a final fuzzer sync (also for `-F`)
+ before terminating.
+ - added AFL_IGNORE_SEED_PROBLEMS to skip over seeds that time out instead
+ of exiting with an error message
+ - allow -S/-M naming up to 50 characters (from 24)
+ - CMPLOG:
+ - added scale support (-l S)
+ - skip unhelpful insertions (u8)
+ - added --version and --help command line parameters
+ - fixed endless loop when reading malformed dictionaries
+ - new custom mutator function: post_run - thanks to yangzao!
+ - afl-whatsup:
+ - detect instanced that are starting up and show them as such as not dead
+ - now also shows coverage reached
+ - option -m shows only very relevant stats
+ - option -n will not use color in the output
+ - instrumentation:
+ - fix for a few string compare transform functions for LAF
+ - we are instrumenting __cxx internal functions again. this might break
+ a few targets, please report if so.
+ - frida_mode:
+ - fixes support for large map offsets
+ - support for AFL_FUZZER_LOOPCOUNT for afl.rs and LLVMFuzzerTestOneInput
+ - afl-cmin/afl-cmin.bash: prevent unneeded file errors
+ - added new tool afl-addseeds that adds new seeds to a running campaign
+ - added benchmark/benchmark.py if you want to see how good your fuzzing
+ speed is in comparison to other setups.
+
+### Version ++4.08c (release)
+ - afl-fuzz:
+ - new mutation engine: mutations that favor discovery more paths are
+ prefered until no new finds for 10 minutes then switching to mutations
+ that favor triggering crashes. Modes and switch time can be configured
+ with `-P`. Also input mode for the target can be defined with `-a` to
+ be `text` or `binary` (defaults to `generic`)
+ - new custom mutator that has the new afl++ engine (so it can easily
+ incorporated into new custom mutators), and also comes with a standalone
+ command line tool! See custom_mutators/aflpp/standalone/
+ - display the state of the fuzzing run in the UI :-)
+ - fix timeout setting if '+' is used or a session is restarted
+ - -l X option to enable base64 transformation solving
+ - allow to disable CMPLOG with '-c -' (e.g. afl.rs enforces '-c 0' on
+ every instance which is counterproductive).
+ - afl-cmin/afl-cmin.bash:
+ - fixed a bug inherited from vanilla AFL where a coverage of
+ map[123] = 11 would be the same as map[1123] = 1
+ - warn on crashing inputs
+ - adjust threads if less inputs than threads specified
+ - afl-cc:
+ - fixed an off-by-one instrumentation of iselect, hurting coverage a bit.
+ Thanks to @amykweon for spotting and fixing!
+ - @toka fixed a bug in laf-intel signed integer comparison splitting,
+ thanks a lot!!
+ - more LLVM compatability
+ - frida_mode:
+ - support for long form instrumentation on x86_x64 and arm64
+ - renamed utils/get_symbol_addr.sh to utils/frida_get_symbol_addr.sh
+ - qemu_mode:
+ - added qemu_mode/utils/qemu_get_symbol_addr.sh
+
+### Version ++4.07c (release)
- afl-fuzz:
- reverse reading the seeds only on restarts (increases performance)
- new env `AFL_POST_PROCESS_KEEP_ORIGINAL` to keep the orignal
@@ -18,6 +112,7 @@
- rewrote our PCGUARD pass to be compatible with LLVM 15+ shenanigans,
requires LLVM 13+ now instead of 10.0.1+
- fallback to native LLVM PCGUARD if our PCGUARD is unavailable
+ - fixed a crash in GCC CMPLOG
- afl-showmap:
- added custom mutator post_process and send support
- add `-I filelist` option, an alternative to `-i in_dir`
@@ -30,7 +125,6 @@
- TritonDSE in custom_mutators/aflpp_tritondse
- SymQEMU in custom_mutators/symqemu
-
### Version ++4.06c (release)
- afl-fuzz:
- ensure temporary file descriptor is closed when not used
diff --git a/docs/FAQ.md b/docs/FAQ.md
index 8178db4..242a379 100644
--- a/docs/FAQ.md
+++ b/docs/FAQ.md
@@ -29,8 +29,8 @@
which then implemented their own research and features, making it now by far
the most flexible and feature rich guided fuzzer available as open source. And
in independent fuzzing benchmarks it is one of the best fuzzers available,
- e.g., [Fuzzbench
- Report](https://www.fuzzbench.com/reports/2020-08-03/index.html).
+ e.g.,
+ [Fuzzbench Report](https://www.fuzzbench.com/reports/2020-08-03/index.html).
</p></details>
<details>
@@ -103,6 +103,42 @@
to itself, this too would be an edge.
</p></details>
+<details>
+ <summary id="should-you-ever-stop-afl-fuzz-minimize-the-corpus-and-restart">Should you ever stop afl-fuzz, minimize the corpus and restart?</summary><p>
+
+ To stop afl-fuzz, minimize it's corpus and restart you would usually do:
+
+ ```
+ Control-C # to terminate afl-fuzz
+ $ afl-cmin -T nproc -i out/default/queue -o minimized_queue -- ./target
+ $ AFL_FAST_CAL=1 AFL_CMPLOG_ONLY_NEW=1 afl-fuzz -i minimized_queue -o out2 [other options] -- ./target
+ ```
+
+ If this improves fuzzing or not is debated and no consensus has been reached
+ or in-depth analysis been performed.
+
+ On the pro side:
+ * The queue/corpus is reduced (up to 20%) by removing intermediate paths
+ that are maybe not needed anymore.
+
+ On the con side:
+ * Fuzzing time is lost for the time the fuzzing is stopped, minimized and
+ restarted.
+
+ The the big question:
+ * Does a minimized queue/corpus improve finding new coverage or does it
+ hinder it?
+
+ The AFL++ team's own limited analysis seem to to show that keeping
+ intermediate paths help to find more coverage, at least for afl-fuzz.
+
+ For honggfuzz in comparison it is a good idea to restart it from time to
+ time if you have other fuzzers (e.g: AFL++) running in parallel to sync
+ the finds of other fuzzers to honggfuzz as it has no syncing feature like
+ AFL++ or libfuzzer.
+
+</p></details>
+
## Targets
<details>
@@ -279,3 +315,54 @@
Solution: just do an `export AFL_MAP_SIZE=(the value in the warning)`.
</p></details>
+
+<details>
+ <summary id="linker-errors">Linker errors.</summary><p>
+
+ If you compile C++ harnesses and see `undefined reference` errors for
+ variables named `__afl_...`, e.g.:
+
+ ```
+ /usr/bin/ld: /tmp/test-d3085f.o: in function `foo::test()':
+ test.cpp:(.text._ZN3fooL4testEv[_ZN3fooL4testEv]+0x35): undefined reference to `foo::__afl_connected'
+ clang: error: linker command failed with exit code 1 (use -v to see invocation)
+ ```
+
+ Then you use AFL++ macros like `__AFL_LOOP` within a namespace and this
+ will not work.
+
+ Solution: Move that harness portion to the global namespace, e.g. before:
+ ```
+ #include <cstdio>
+ namespace foo {
+ static void test() {
+ while(__AFL_LOOP(1000)) {
+ foo::function();
+ }
+ }
+ }
+
+ int main(int argc, char** argv) {
+ foo::test();
+ return 0;
+ }
+ ```
+ after:
+ ```
+ #include <cstdio>
+ static void mytest() {
+ while(__AFL_LOOP(1000)) {
+ foo::function();
+ }
+ }
+ namespace foo {
+ static void test() {
+ mytest();
+ }
+ }
+ int main(int argc, char** argv) {
+ foo::test();
+ return 0;
+ }
+ ```
+</p></details>
diff --git a/docs/INSTALL.md b/docs/INSTALL.md
index 9005a7e..84bbe3e 100644
--- a/docs/INSTALL.md
+++ b/docs/INSTALL.md
@@ -7,7 +7,7 @@
Docker Hub (for x86_64 and arm64):
```shell
-docker pull aflplusplus/aflplusplus:
+docker pull aflplusplus/aflplusplus:latest
docker run -ti -v /location/of/your/target:/src aflplusplus/aflplusplus
```
@@ -87,6 +87,7 @@
* INTROSPECTION - compile afl-fuzz with mutation introspection
* NO_PYTHON - disable python support
* NO_SPLICING - disables splicing mutation in afl-fuzz, not recommended for normal fuzzing
+* NO_UTF - do not use UTF-8 for line rendering in status screen (fallback to G1 box drawing, of vanilla AFL)
* NO_NYX - disable building nyx mode dependencies
* NO_CORESIGHT - disable building coresight (arm64 only)
* NO_UNICORN_ARM64 - disable building unicorn on arm64
@@ -113,10 +114,10 @@
# Depending on your MacOS system + brew version it is either
export PATH="/opt/homebrew/opt/llvm/bin:$PATH"
# or
-export PATH="/usr/local/opt/llvm/bin:$PATH"
+export PATH="/usr/local/opt/llvm/bin:/usr/local/opt/coreutils/libexec/gnubin:$PATH"
# you can check with "brew info llvm"
-export PATH="/usr/local/opt/coreutils/libexec/gnubin:/usr/local/bin:$PATH"
+export PATH="/usr/local/bin:$PATH"
export CC=clang
export CXX=clang++
gmake
diff --git a/docs/afl-fuzz_approach.md b/docs/afl-fuzz_approach.md
index cb173f1..9ea0632 100644
--- a/docs/afl-fuzz_approach.md
+++ b/docs/afl-fuzz_approach.md
@@ -5,6 +5,10 @@
coverage to effortlessly pick up subtle, local-scale changes to program control
flow.
+Note: If you are interested in a more current up-to-date deep dive how AFL++
+works then we commend this blog post:
+[https://blog.ritsec.club/posts/afl-under-hood/](https://blog.ritsec.club/posts/afl-under-hood/)
+
Simplifying a bit, the overall algorithm can be summed up as:
1) Load user-supplied initial test cases into the queue.
@@ -419,8 +423,8 @@
highlighted in red.
The fuzzing process will continue until you press Ctrl-C. At a minimum, you want
-to allow the fuzzer to complete one queue cycle, which may take anywhere from a
-couple of hours to a week or so.
+to allow the fuzzer to at least one queue cycle without any new finds, which may
+take anywhere from a couple of hours to a week or so.
There are three subdirectories created within the output directory and updated
in real-time:
diff --git a/docs/custom_mutators.md b/docs/custom_mutators.md
index 3f7e9e6..73e3c80 100644
--- a/docs/custom_mutators.md
+++ b/docs/custom_mutators.md
@@ -73,7 +73,7 @@
def fuzz_count(buf):
return cnt
-def splice_optout()
+def splice_optout():
pass
def fuzz(buf, add_buf, max_size):
@@ -125,8 +125,9 @@
- `queue_get` (optional):
- This method determines whether the custom fuzzer should fuzz the current
- queue entry or not
+ This method determines whether AFL++ should fuzz the current
+ queue entry or not: all defined custom mutators as well as
+ all AFL++'s mutators.
- `fuzz_count` (optional):
@@ -145,12 +146,15 @@
- `fuzz` (optional):
- This method performs custom mutations on a given input. It also accepts an
- additional test case. Note that this function is optional - but it makes
- sense to use it. You would only skip this if `post_process` is used to fix
- checksums etc. so if you are using it, e.g., as a post processing library.
- Note that a length > 0 *must* be returned!
- The returned output buffer is under **your** memory management!
+ This method performs your custom mutations on a given input.
+ The add_buf is the contents of another queue item that can be used for
+ splicing - or anything else - and can also be ignored. If you are not
+ using this additional data then define `splice_optout` (see above).
+ This function is optional.
+ Returing a length of 0 is valid and is interpreted as skipping this
+ one mutation result.
+ For non-Python: the returned output buffer is under **your** memory
+ management!
- `describe` (optional):
@@ -194,7 +198,7 @@
This method can be used if you want to send data to the target yourself,
e.g. via IPC. This replaces some usage of utils/afl_proxy but requires
that you start the target with afl-fuzz.
- Example: [custom_mutators/examples/custom_send.c](custom_mutators/examples/custom_send.c)
+ Example: [custom_mutators/examples/custom_send.c](../custom_mutators/examples/custom_send.c)
- `queue_new_entry` (optional):
@@ -373,4 +377,4 @@
- [bruce30262/libprotobuf-mutator_fuzzing_learning](https://github.com/bruce30262/libprotobuf-mutator_fuzzing_learning/tree/master/4_libprotobuf_aflpp_custom_mutator)
- [thebabush/afl-libprotobuf-mutator](https://github.com/thebabush/afl-libprotobuf-mutator)
- [XML Fuzzing@NullCon 2017](https://www.agarri.fr/docs/XML_Fuzzing-NullCon2017-PUBLIC.pdf)
- - [A bug detected by AFL + XML-aware mutators](https://bugs.chromium.org/p/chromium/issues/detail?id=930663)
\ No newline at end of file
+ - [A bug detected by AFL + XML-aware mutators](https://bugs.chromium.org/p/chromium/issues/detail?id=930663)
diff --git a/docs/env_variables.md b/docs/env_variables.md
index 0f0869d..a972b6d 100644
--- a/docs/env_variables.md
+++ b/docs/env_variables.md
@@ -135,6 +135,12 @@
- `TMPDIR` and `AFL_KEEP_ASSEMBLY`, since no temporary assembly files are
created.
+ - LLVM modes compiling C++ will normally set rpath in the binary if LLVM is
+ not in a usual location (/usr or /lib). Setting `AFL_LLVM_NO_RPATH=1`
+ disables this behaviour in case it isn't desired. For example, the compiling
+ toolchain might be in a custom location, but the target machine has LLVM
+ runtime libs in the search path.
+
Then there are a few specific features that are only available in
instrumentation mode:
@@ -190,6 +196,19 @@
For more information, see
[instrumentation/README.instrument_list.md](../instrumentation/README.instrument_list.md).
+#### INJECTIONS
+
+This feature is able to find simple injection vulnerabilities in insecure
+calls to mysql/mariadb/nosql/postgresql/ldap and XSS in libxml2.
+
+ - Setting `AFL_LLVM_INJECTIONS_ALL` will enable all injection hooking
+
+ - Setting `AFL_LLVM_INJECTIONS_SQL` will enable SQL injection hooking
+
+ - Setting `AFL_LLVM_INJECTIONS_LDAP` will enable LDAP injection hooking
+
+ - Setting `AFL_LLVM_INJECTIONS_XSS` will enable XSS injection hooking
+
#### LAF-INTEL
This great feature will split compares into series of single byte comparisons to
@@ -327,6 +346,9 @@
(`-i in`). This is an important feature to set when resuming a fuzzing
session.
+ - `AFL_IGNORE_SEED_PROBLEMS` will skip over crashes and timeouts in the seeds
+ instead of exiting.
+
- Setting `AFL_CRASH_EXITCODE` sets the exit code AFL++ treats as crash. For
example, if `AFL_CRASH_EXITCODE='-1'` is set, each input resulting in a `-1`
return code (i.e. `exit(-1)` got called), will be treated as if a crash had
@@ -365,6 +387,9 @@
- `AFL_EXIT_ON_SEED_ISSUES` will restore the vanilla afl-fuzz behavior which
does not allow crashes or timeout seeds in the initial -i corpus.
+ - `AFL_CRASHING_SEEDS_AS_NEW_CRASH` will treat crashing seeds as new crash. these
+ crashes will be written to crashes folder as op:dry_run, and orig:<seed_file_name>.
+
- `AFL_EXIT_ON_TIME` causes afl-fuzz to terminate if no new paths were found
within a specified period of time (in seconds). May be convenient for some
types of automated jobs.
@@ -409,10 +434,15 @@
set `AFL_IGNORE_PROBLEMS`. If you additionally want to also ignore coverage
from late loaded libraries, you can set `AFL_IGNORE_PROBLEMS_COVERAGE`.
- - When running in the `-M` or `-S` mode, setting `AFL_IMPORT_FIRST` causes the
- fuzzer to import test cases from other instances before doing anything else.
- This makes the "own finds" counter in the UI more accurate. Beyond counter
- aesthetics, not much else should change.
+ - When running with multiple afl-fuzz or with `-F`, setting `AFL_IMPORT_FIRST`
+ causes the fuzzer to import test cases from other instances before doing
+ anything else. This makes the "own finds" counter in the UI more accurate.
+
+ - When running with multiple afl-fuzz or with `-F`, setting `AFL_FINAL_SYNC`
+ will cause the fuzzer to perform a final import of test cases when
+ terminating. This is beneficial for `-M` main fuzzers to ensure it has all
+ unique test cases and hence you only need to `afl-cmin` this single
+ queue.
- Setting `AFL_INPUT_LEN_MIN` and `AFL_INPUT_LEN_MAX` are an alternative to
the afl-fuzz -g/-G command line option to control the minimum/maximum
@@ -585,7 +615,8 @@
Note that this is not a compile time option but a runtime option :-)
- Set `AFL_PIZZA_MODE` to 1 to enable the April 1st stats menu, set to -1
- to disable although it is 1st of April.
+ to disable although it is 1st of April. 0 is the default and means enable
+ on the 1st of April automatically.
- If you need a specific interval to update fuzzer_stats file, you can
set `AFL_FUZZER_STATS_UPDATE_INTERVAL` to the interval in seconds you'd
diff --git a/docs/fuzzing_binary-only_targets.md b/docs/fuzzing_binary-only_targets.md
index 9d9d6bb..a151bce 100644
--- a/docs/fuzzing_binary-only_targets.md
+++ b/docs/fuzzing_binary-only_targets.md
@@ -94,8 +94,7 @@
In FRIDA mode, you can fuzz binary-only targets as easily as with QEMU mode.
FRIDA mode is most of the times slightly faster than QEMU mode. It is also
-newer, lacks COMPCOV, and has the advantage that it works on MacOS (both intel
-and M1).
+newer, and has the advantage that it works on MacOS (both intel and M1).
To build FRIDA mode:
@@ -113,10 +112,6 @@
less conducive to parallelization. But for binary-only fuzzing, it gives a huge
speed improvement if it is possible to use.
-If you want to fuzz a binary-only library, then you can fuzz it with frida-gum
-via frida_mode/. You will have to write a harness to call the target function in
-the library, use afl-frida.c as a template.
-
You can also perform remote fuzzing with frida, e.g., if you want to fuzz on
iPhone or Android devices, for this you can use
[https://github.com/ttdennis/fpicker/](https://github.com/ttdennis/fpicker/) as
@@ -302,7 +297,6 @@
* S2E: [https://github.com/S2E](https://github.com/S2E)
* TinyInst:
[https://github.com/googleprojectzero/TinyInst](https://github.com/googleprojectzero/TinyInst)
- (Mac/Windows only)
* ... please send me any missing that are good
## Closing words
diff --git a/docs/fuzzing_in_depth.md b/docs/fuzzing_in_depth.md
index f75ca5d..6a21764 100644
--- a/docs/fuzzing_in_depth.md
+++ b/docs/fuzzing_in_depth.md
@@ -599,32 +599,40 @@
can set the cache size (in MB) by setting the environment variable
`AFL_TESTCACHE_SIZE`.
-There should be one main fuzzer (`-M main-$HOSTNAME` option) and as many
-secondary fuzzers (e.g., `-S variant1`) as you have cores that you use. Every
-`-M`/`-S` entry needs a unique name (that can be whatever), however, the same
-`-o` output directory location has to be used for all instances.
+There should be one main fuzzer (`-M main-$HOSTNAME` option - set also
+`AFL_FINAL_SYNC=1`) and as many secondary fuzzers (e.g., `-S variant1`) as you
+have cores that you use. Every `-M`/`-S` entry needs a unique name (that can be
+whatever), however, the same `-o` output directory location has to be used for
+all instances.
For every secondary fuzzer there should be a variation, e.g.:
-* one should fuzz the target that was compiled differently: with sanitizers
- activated (`export AFL_USE_ASAN=1 ; export AFL_USE_UBSAN=1 ; export
- AFL_USE_CFISAN=1`)
+* one should fuzz the target that was compiled with sanitizers activated
+ (`export AFL_USE_ASAN=1 ; export AFL_USE_UBSAN=1 ; export AFL_USE_CFISAN=1`)
* one or two should fuzz the target with CMPLOG/redqueen (see above), at least
- one cmplog instance should follow transformations (`-l AT`)
+ one cmplog instance should follow transformations (`-l 2AT`)
* one to three fuzzers should fuzz a target compiled with laf-intel/COMPCOV (see
above). Important note: If you run more than one laf-intel/COMPCOV fuzzer and
you want them to share their intermediate results, the main fuzzer (`-M`) must
- be one of them! (Although this is not really recommended.)
+ be one of them (although this is not really recommended).
-All other secondaries should be used like this:
-* a quarter to a third with the MOpt mutator enabled: `-L 0`
-* run with a different power schedule, recommended are: `fast` (default),
+The other secondaries should be run like this:
+* 10% with the MOpt mutator enabled: `-L 0`
+* 10% should use the old queue cycling with `-Z`
+* 50-70% should run with `AFL_DISABLE_TRIM`
+* 40% should run with `-P explore` and 20% with `-P exploit`
+* If you use `-a` then set 30% of the instances to not use `-a`; if you did
+ not set `-a` (why??), then set 30% to `-a ascii` and 30% to `-a binary`.
+* run each with a different power schedule, recommended are: `fast` (default),
`explore`, `coe`, `lin`, `quad`, `exploit`, and `rare` which you can set with
the `-p` option, e.g., `-p explore`. See the
[FAQ](FAQ.md#what-are-power-schedules) for details.
-* a few instances should use the old queue cycling with `-Z`
+
+It can be useful to set `AFL_IGNORE_SEED_PROBLEMS=1` to skip over seeds that
+crash or timeout during startup.
Also, it is recommended to set `export AFL_IMPORT_FIRST=1` to load test cases
-from other fuzzers in the campaign first.
+from other fuzzers in the campaign first. But note that can slow down the start
+of the first fuzz by quite a lot of you have many fuzzers and/or many seeds.
If you have a large corpus, a corpus from a previous run or are fuzzing in a CI,
then also set `export AFL_CMPLOG_ONLY_NEW=1` and `export AFL_FAST_CAL=1`.
@@ -940,7 +948,7 @@
* 65% for `AFL_DISABLE_TRIM`
* 50% for `AFL_KEEP_TIMEOUTS`
* 50% use a dictionary generated by `AFL_LLVM_DICT2FILE` + `AFL_LLVM_DICT2FILE_NO_MAIN=1`
- * 40% use MOpt (`-L 0`)
+ * 10% use MOpt (`-L 0`)
* 40% for `AFL_EXPAND_HAVOC_NOW`
* 20% for old queue processing (`-Z`)
* for CMPLOG targets, 70% for `-l 2`, 10% for `-l 3`, 20% for `-l 2AT`
diff --git a/docs/resources/1_instrument_target.drawio.svg b/docs/resources/1_instrument_target.drawio.svg
index af6ac39..c93fa2b 100644
--- a/docs/resources/1_instrument_target.drawio.svg
+++ b/docs/resources/1_instrument_target.drawio.svg
@@ -1,4 +1,4 @@
<?xml version="1.0" encoding="UTF-8"?>
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text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 47px; margin-left: 641px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><a href="https://github.com/AFLplusplus/AFLplusplus/blob/stable/docs/fuzzing_in_depth.md#d-modifying-the-target">Modify target</a><br /><br />Create a fuzzing harness<br />by hand for better efficiency.</div></div></div></foreignObject><text x="730" y="59" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Modify target...</text></switch></g><path d="M 10 68 L 190 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 220 68 L 400 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 430 68 L 610 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 640 68 L 820 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 850 68 L 1030 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Viewer does not support full SVG 1.1</text></a></switch></svg>
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text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 47px; margin-left: 11px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><a href="https://github.com/AFLplusplus/AFLplusplus/blob/stable/docs/fuzzing_in_depth.md#a-selecting-the-best-afl-compiler-for-instrumenting-the-target">Select compiler</a><br /><br />LTO mode<br />(<span>clang/clang++ 12+</span><span>)</span><br /><br />LLVM mode<br />(<span>clang/clang++ 3.8+</span><span>)</span><br /><br />GCC_PLUGIN mode<br />(<span>gcc 5+</span><span>)</span><br /><br />GCC/CLANG mode<br />(other)</div></div></div></foreignObject><text x="100" y="59" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Select compiler...</text></switch></g><rect x="220" y="40" width="180" height="200" rx="9" ry="9" fill="none" stroke="#000000" stroke-dasharray="3 3" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 47px; margin-left: 221px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><a href="https://github.com/AFLplusplus/AFLplusplus/blob/stable/docs/fuzzing_in_depth.md#b-selecting-instrumentation-options">Select options</a><br /><br />Select options depending on<br />the compiler:<br /><br />COMPCOV<br />(only LLVM & LTO)<br /><br />CmpLog<br />(only LLVM & LTO)<br /><br />selective instrumentation<br />(LTO, LLVM, GCC_PLUGIN)</div></div></div></foreignObject><text x="310" y="59" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Select options...</text></switch></g><path d="M 610 140 L 630 140 L 620 140 L 633.63 140" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 638.88 140 L 631.88 143.5 L 633.63 140 L 631.88 136.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><rect x="430" y="40" width="180" height="200" rx="9" ry="9" fill="none" stroke="#000000" stroke-dasharray="3 3" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 47px; margin-left: 431px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><a href="https://github.com/AFLplusplus/AFLplusplus/blob/stable/docs/fuzzing_in_depth.md#c-selecting-sanitizers">Select sanitizer</a><br /><br />Max. one sanitizer type each<br />in a fuzzing campaign:<br /><br />ASAN<br />CFISAN<br />LSAN<br />MSAN<br />TSAN<br />UBSAN</div></div></div></foreignObject><text x="520" y="59" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Select sanitizer...</text></switch></g><rect x="850" y="40" width="180" height="200" rx="9" ry="9" fill="none" stroke="#000000" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 47px; margin-left: 851px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><a href="https://github.com/AFLplusplus/AFLplusplus/blob/stable/docs/fuzzing_in_depth.md#e-instrumenting-the-target">Compile target source code</a><br /><br />Compile target source code depending on the build system:<br /><br />configure<br />CMake<br />Meson Build System<br />other</div></div></div></foreignObject><text x="940" y="59" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Compile target source code...</text></switch></g><path d="M 820 140 L 840 140 L 830 140 L 843.63 140" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 848.88 140 L 841.88 143.5 L 843.63 140 L 841.88 136.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><rect x="640" y="40" width="180" height="200" rx="9" ry="9" fill="none" stroke="#000000" stroke-dasharray="3 3" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe flex-start; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 47px; margin-left: 641px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><a href="https://github.com/AFLplusplus/AFLplusplus/blob/stable/docs/fuzzing_in_depth.md#d-modifying-the-target">Modify target</a><br /><br />Create a fuzzing harness<br />by hand for better efficiency.</div></div></div></foreignObject><text x="730" y="59" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Modify target...</text></switch></g><path d="M 10 68 L 190 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 220 68 L 400 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 430 68 L 610 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 640 68 L 820 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 850 68 L 1030 68" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Viewer does not support full SVG 1.1</text></a></switch></svg>
\ No newline at end of file
diff --git a/docs/tutorials.md b/docs/tutorials.md
index 342080f..0a09f6d 100644
--- a/docs/tutorials.md
+++ b/docs/tutorials.md
@@ -8,6 +8,7 @@
* [https://aflplus.plus/docs/tutorials/libxml2_tutorial/](https://aflplus.plus/docs/tutorials/libxml2_tutorial/)
* [https://bananamafia.dev/post/gb-fuzz/](https://bananamafia.dev/post/gb-fuzz/)
+* [https://bushido-sec.com/index.php/2023/06/19/the-art-of-fuzzing/](https://bushido-sec.com/index.php/2023/06/19/the-art-of-fuzzing/)
* [https://securitylab.github.com/research/fuzzing-challenges-solutions-1](https://securitylab.github.com/research/fuzzing-challenges-solutions-1)
* [https://securitylab.github.com/research/fuzzing-software-2](https://securitylab.github.com/research/fuzzing-software-2)
* [https://securitylab.github.com/research/fuzzing-sockets-FTP](https://securitylab.github.com/research/fuzzing-sockets-FTP)
@@ -20,6 +21,10 @@
* [https://github.com/antonio-morales/Fuzzing101](https://github.com/antonio-morales/Fuzzing101)
+Here is a good workflow description (and tutorial) for qemu_mode:
+
+* [https://airbus-seclab.github.io/AFLplusplus-blogpost/](https://airbus-seclab.github.io/AFLplusplus-blogpost/)
+
Here is good workflow description for frida_mode:
* [https://blog.quarkslab.com/android-greybox-fuzzing-with-afl-frida-mode.html](https://blog.quarkslab.com/android-greybox-fuzzing-with-afl-frida-mode.html)
@@ -36,6 +41,9 @@
* Superion for AFL++:
[https://github.com/adrian-rt/superion-mutator](https://github.com/adrian-rt/superion-mutator)
+For a very in-depth explanation on how AFL++ works check out:
+[https://blog.ritsec.club/posts/afl-under-hood/](https://blog.ritsec.club/posts/afl-under-hood/)
+
## Video Tutorials
* [Install AFL++ Ubuntu](https://www.youtube.com/watch?v=5dCvhkbi3RA)
diff --git a/include/afl-as.h b/include/afl-as.h
index 486314e..612f34f 100644
--- a/include/afl-as.h
+++ b/include/afl-as.h
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/include/afl-fuzz.h b/include/afl-fuzz.h
index beb2de2..c24f39e 100644
--- a/include/afl-fuzz.h
+++ b/include/afl-fuzz.h
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -31,7 +31,7 @@
#define MESSAGES_TO_STDOUT
#ifndef _GNU_SOURCE
- #define _GNU_SOURCE 1
+ #define _GNU_SOURCE
#endif
#ifndef _FILE_OFFSET_BITS
#define _FILE_OFFSET_BITS 64
@@ -149,6 +149,48 @@
};
+struct inf_profile {
+
+ u32 inf_skipped_bytes; /* Inference Stage Profiling */
+ u64 inf_execs_cost, inf_time_cost;
+
+};
+
+/* ToDo: add cmplog profile as well */
+struct havoc_profile {
+
+ u32 queued_det_stage, /* Det/Havoc Stage Profiling */
+ queued_havoc_stage, total_queued_det, edge_det_stage, edge_havoc_stage,
+ total_det_edge;
+
+ u64 det_stage_time, havoc_stage_time, total_det_time;
+
+};
+
+struct skipdet_entry {
+
+ u8 continue_inf, done_eff;
+ u32 undet_bits, quick_eff_bytes;
+
+ u8 *skip_eff_map, /* we'v finish the eff_map */
+ *done_inf_map; /* some bytes are not done yet */
+
+};
+
+struct skipdet_global {
+
+ u8 use_skip_havoc;
+
+ u32 undet_bits_threshold;
+
+ u64 last_cov_undet;
+
+ u8 *virgin_det_bits; /* global fuzzed bits */
+
+ struct inf_profile *inf_prof;
+
+};
+
struct queue_entry {
u8 *fname; /* File name for the test case */
@@ -157,6 +199,7 @@
u8 colorized, /* Do not run redqueen stage again */
cal_failed; /* Calibration failed? */
+
bool trim_done, /* Trimmed? */
was_fuzzed, /* historical, but needed for MOpt */
passed_det, /* Deterministic stages passed? */
@@ -168,17 +211,15 @@
disabled; /* Is disabled from fuzz selection */
u32 bitmap_size, /* Number of bits set in bitmap */
- fuzz_level, /* Number of fuzzing iterations */
- n_fuzz_entry /* offset in n_fuzz */
#ifdef INTROSPECTION
- ,
stats_selected, /* stats: how often selected */
stats_skipped, /* stats: how often skipped */
stats_finds, /* stats: # of saved finds */
stats_crashes, /* stats: # of saved crashes */
- stats_tmouts /* stats: # of saved timeouts */
+ stats_tmouts, /* stats: # of saved timeouts */
#endif
- ;
+ fuzz_level, /* Number of fuzzing iterations */
+ n_fuzz_entry; /* offset in n_fuzz */
u64 exec_us, /* Execution time (us) */
handicap, /* Number of queue cycles behind */
@@ -204,6 +245,8 @@
struct queue_entry *mother; /* queue entry this based on */
+ struct skipdet_entry *skipdet_e;
+
};
struct extra_data {
@@ -248,6 +291,8 @@
/* 19 */ STAGE_CUSTOM_MUTATOR,
/* 20 */ STAGE_COLORIZATION,
/* 21 */ STAGE_ITS,
+ /* 22 */ STAGE_INF,
+ /* 23 */ STAGE_QUICK,
STAGE_NUM_MAX
@@ -346,6 +391,7 @@
/* 13 */ PY_FUNC_DESCRIBE,
/* 14 */ PY_FUNC_FUZZ_SEND,
/* 15 */ PY_FUNC_SPLICE_OPTOUT,
+ /* 16 */ PY_FUNC_POST_RUN,
PY_FUNC_COUNT
};
@@ -401,7 +447,8 @@
afl_exit_on_seed_issues, afl_try_affinity, afl_ignore_problems,
afl_keep_timeouts, afl_no_crash_readme, afl_ignore_timeouts,
afl_no_startup_calibration, afl_no_warn_instability,
- afl_post_process_keep_original;
+ afl_post_process_keep_original, afl_crashing_seeds_as_new_crash,
+ afl_final_sync, afl_ignore_seed_problems;
u8 *afl_tmpdir, *afl_custom_mutator_library, *afl_python_module, *afl_path,
*afl_hang_tmout, *afl_forksrv_init_tmout, *afl_preload,
@@ -494,7 +541,8 @@
*orig_cmdline, /* Original command line */
*infoexec; /* Command to execute on a new crash */
- u32 hang_tmout; /* Timeout used for hang det (ms) */
+ u32 hang_tmout, /* Timeout used for hang det (ms) */
+ stats_update_freq; /* Stats update frequency (execs) */
u8 havoc_stack_pow2, /* HAVOC_STACK_POW2 */
no_unlink, /* do not unlink cur_input */
@@ -503,14 +551,12 @@
custom_splice_optout, /* Custom mutator no splice buffer */
is_main_node, /* if this is the main node */
is_secondary_node, /* if this is a secondary instance */
- pizza_is_served; /* pizza mode */
-
- u32 stats_update_freq; /* Stats update frequency (execs) */
-
- u8 schedule; /* Power schedule (default: EXPLORE)*/
- u8 havoc_max_mult;
-
- u8 skip_deterministic, /* Skip deterministic stages? */
+ pizza_is_served, /* pizza mode */
+ input_mode, /* target wants text inputs */
+ fuzz_mode, /* coverage/exploration or crash/exploitation mode */
+ schedule, /* Power schedule (default: EXPLORE)*/
+ havoc_max_mult, /* havoc multiplier */
+ skip_deterministic, /* Skip deterministic stages? */
use_splicing, /* Recombine input files? */
non_instrumented_mode, /* Run in non-instrumented mode? */
score_changed, /* Scoring for favorites changed? */
@@ -597,7 +643,8 @@
last_hang_time, /* Time for most recent hang (ms) */
longest_find_time, /* Longest time taken for a find */
exit_on_time, /* Delay to exit if no new paths */
- sync_time; /* Sync time (ms) */
+ sync_time, /* Sync time (ms) */
+ switch_fuzz_mode; /* auto or fixed fuzz mode */
u32 slowest_exec_ms, /* Slowest testcase non hang in ms */
subseq_tmouts; /* Number of timeouts in a row */
@@ -610,6 +657,7 @@
u32 stage_cur, stage_max; /* Stage progression */
s32 splicing_with; /* Splicing with which test case? */
+ s64 smallest_favored; /* smallest queue id favored */
u32 main_node_id, main_node_max; /* Main instance job splitting */
@@ -674,7 +722,8 @@
u32 cmplog_max_filesize;
u32 cmplog_lvl;
u32 colorize_success;
- u8 cmplog_enable_arith, cmplog_enable_transform, cmplog_random_colorization;
+ u8 cmplog_enable_arith, cmplog_enable_transform, cmplog_enable_scale,
+ cmplog_enable_xtreme_transform, cmplog_random_colorization;
struct afl_pass_stat *pass_stats;
struct cmp_map *orig_cmp_map;
@@ -779,6 +828,11 @@
* is too large) */
struct queue_entry **q_testcase_cache;
+ /* Global Profile Data for deterministic/havoc-splice stage */
+ struct havoc_profile *havoc_prof;
+
+ struct skipdet_global *skipdet_g;
+
#ifdef INTROSPECTION
char mutation[8072];
char m_tmp[4096];
@@ -1019,6 +1073,16 @@
void (*afl_custom_fuzz_send)(void *data, const u8 *buf, size_t buf_size);
/**
+ * This method can be used if you want to run some code or scripts each time
+ * AFL++ executes the target with afl-fuzz.
+ *
+ * (Optional)
+ *
+ * @param data pointer returned in afl_custom_init by this custom mutator
+ */
+ void (*afl_custom_post_run)(void *data);
+
+ /**
* Allow for additional analysis (e.g. calling a different tool that does a
* different kind of coverage and saves this for the custom mutator).
*
@@ -1073,6 +1137,7 @@
u32 fuzz_count_py(void *, const u8 *, size_t);
void fuzz_send_py(void *, const u8 *, size_t);
+void post_run_py(void *);
size_t post_process_py(void *, u8 *, size_t, u8 **);
s32 init_trim_py(void *, u8 *, size_t);
s32 post_trim_py(void *, u8);
@@ -1203,6 +1268,7 @@
#ifndef AFL_SHOWMAP
void setup_signal_handlers(void);
#endif
+char *get_fuzzing_state(afl_state_t *afl);
/* CmpLog */
@@ -1217,6 +1283,13 @@
/* probability between 0.0 and 1.0 */
double rand_next_percent(afl_state_t *afl);
+/* SkipDet Functions */
+
+u8 skip_deterministic_stage(afl_state_t *, u8 *, u8 *, u32, u64);
+u8 is_det_timeout(u64, u8);
+
+void plot_profile_data(afl_state_t *, struct queue_entry *);
+
/**** Inline routines ****/
/* Generate a random number (from 0 to limit - 1). This may
diff --git a/include/afl-mutations.h b/include/afl-mutations.h
new file mode 100644
index 0000000..75e6648
--- /dev/null
+++ b/include/afl-mutations.h
@@ -0,0 +1,2678 @@
+/* Implementation of afl havoc mutation to be used in AFL++ custom mutators and
+ partially in afl-fuzz itself.
+
+ How to use:
+
+ #include "afl-mutations.h" // needs afl-fuzz.h
+
+ u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32t steps, bool is_text,
+ bool is_exploration, u8 *splice_buf, u32 splice_len,
+ u32 max_len);
+
+ Returns:
+ u32 - the length of the mutated data return in *buf. 0 = error
+ Parameters:
+ afl_state_t *afl - the *afl state pointer
+ u8 *buf - the input buffer to mutate which will be mutated into.
+ NOTE: must be able to contain a size of at least max_len!! (see below)
+ u32 len - the length of the input
+ u32 steps - how many mutations to perform on the input
+ bool is_text - is the target expecting text inputs
+ bool is_exploration - mutate for exploration mode (instead of exploitation)
+ splice_buf - a buffer from another corpus item to splice with.
+ If NULL then no splicing is done (obviously).
+ splice_len - the length of the splice buffer. If 0 then no splicing.
+ u32 max_len - the maximum size the mutated buffer may grow to
+*/
+
+#ifndef AFL_MUTATIONS_H
+#define AFL_MUTATIONS_H
+
+#include <stdbool.h>
+#include <inttypes.h>
+#include "afl-fuzz.h"
+
+#define MUT_STRATEGY_ARRAY_SIZE 256
+
+enum {
+
+ /* 00 */ MUT_FLIPBIT,
+ /* 01 */ MUT_INTERESTING8,
+ /* 02 */ MUT_INTERESTING16,
+ /* 03 */ MUT_INTERESTING16BE,
+ /* 04 */ MUT_INTERESTING32,
+ /* 05 */ MUT_INTERESTING32BE,
+ /* 06 */ MUT_ARITH8_,
+ /* 07 */ MUT_ARITH8,
+ /* 08 */ MUT_ARITH16_,
+ /* 09 */ MUT_ARITH16BE_,
+ /* 10 */ MUT_ARITH16,
+ /* 11 */ MUT_ARITH16BE,
+ /* 12 */ MUT_ARITH32_,
+ /* 13 */ MUT_ARITH32BE_,
+ /* 14 */ MUT_ARITH32,
+ /* 15 */ MUT_ARITH32BE,
+ /* 16 */ MUT_RAND8,
+ /* 17 */ MUT_CLONE_COPY,
+ /* 18 */ MUT_CLONE_FIXED,
+ /* 19 */ MUT_OVERWRITE_COPY,
+ /* 20 */ MUT_OVERWRITE_FIXED,
+ /* 21 */ MUT_BYTEADD,
+ /* 22 */ MUT_BYTESUB,
+ /* 23 */ MUT_FLIP8,
+ /* 24 */ MUT_SWITCH,
+ /* 25 */ MUT_DEL,
+ /* 26 */ MUT_SHUFFLE,
+ /* 27 */ MUT_DELONE,
+ /* 28 */ MUT_INSERTONE,
+ /* 29 */ MUT_ASCIINUM,
+ /* 30 */ MUT_INSERTASCIINUM,
+ /* 31 */ MUT_EXTRA_OVERWRITE,
+ /* 32 */ MUT_EXTRA_INSERT,
+ /* 33 */ MUT_AUTO_EXTRA_OVERWRITE,
+ /* 34 */ MUT_AUTO_EXTRA_INSERT,
+ /* 35 */ MUT_SPLICE_OVERWRITE,
+ /* 36 */ MUT_SPLICE_INSERT,
+
+ MUT_MAX
+
+};
+
+#define MUT_TXT_ARRAY_SIZE 200
+u32 text_array[MUT_TXT_ARRAY_SIZE] = {MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT};
+
+#define MUT_BIN_ARRAY_SIZE 256
+u32 binary_array[MUT_BIN_ARRAY_SIZE] = {MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT};
+
+#define MUT_NORMAL_ARRAY_SIZE 77
+u32 normal_splice_array[MUT_NORMAL_ARRAY_SIZE] = {MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_FIXED,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_FIXED,
+ MUT_BYTEADD,
+ MUT_BYTESUB,
+ MUT_FLIP8,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT};
+
+#define MUT_SPLICE_ARRAY_SIZE 81
+u32 full_splice_array[MUT_SPLICE_ARRAY_SIZE] = {MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_FIXED,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_FIXED,
+ MUT_BYTEADD,
+ MUT_BYTESUB,
+ MUT_FLIP8,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT};
+
+u32 mutation_strategy_exploration_text[MUT_STRATEGY_ARRAY_SIZE] = {
+
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT
+
+};
+
+u32 mutation_strategy_exploration_binary[MUT_STRATEGY_ARRAY_SIZE] = {
+
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT
+
+};
+
+u32 mutation_strategy_exploitation_text[MUT_STRATEGY_ARRAY_SIZE] = {
+
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT
+
+};
+
+u32 mutation_strategy_exploitation_binary[MUT_STRATEGY_ARRAY_SIZE] = {
+
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_FLIPBIT,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING8,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING16BE,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_INTERESTING32BE,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8_,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH8,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16BE_,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH16BE,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32BE_,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_ARITH32BE,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_RAND8,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_COPY,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_CLONE_FIXED,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_COPY,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_OVERWRITE_FIXED,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTEADD,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_BYTESUB,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_FLIP8,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_SWITCH,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_DEL,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_SHUFFLE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_DELONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_INSERTONE,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_ASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_INSERTASCIINUM,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_OVERWRITE,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_OVERWRITE,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_AUTO_EXTRA_INSERT,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_OVERWRITE,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT,
+ MUT_SPLICE_INSERT
+
+};
+
+u32 afl_mutate(afl_state_t *, u8 *, u32, u32, bool, bool, u8 *, u32, u32);
+u32 choose_block_len(afl_state_t *, u32);
+
+/* Helper to choose random block len for block operations in fuzz_one().
+ Doesn't return zero, provided that max_len is > 0. */
+
+inline u32 choose_block_len(afl_state_t *afl, u32 limit) {
+
+ u32 min_value, max_value;
+ u32 rlim = MIN(afl->queue_cycle, (u32)3);
+
+ if (unlikely(!afl->run_over10m)) { rlim = 1; }
+
+ switch (rand_below(afl, rlim)) {
+
+ case 0:
+ min_value = 1;
+ max_value = HAVOC_BLK_SMALL;
+ break;
+
+ case 1:
+ min_value = HAVOC_BLK_SMALL;
+ max_value = HAVOC_BLK_MEDIUM;
+ break;
+
+ default:
+
+ if (likely(rand_below(afl, 10))) {
+
+ min_value = HAVOC_BLK_MEDIUM;
+ max_value = HAVOC_BLK_LARGE;
+
+ } else {
+
+ min_value = HAVOC_BLK_LARGE;
+ max_value = HAVOC_BLK_XL;
+
+ }
+
+ }
+
+ if (min_value >= limit) { min_value = 1; }
+
+ return min_value + rand_below(afl, MIN(max_value, limit) - min_value + 1);
+
+}
+
+inline u32 afl_mutate(afl_state_t *afl, u8 *buf, u32 len, u32 steps,
+ bool is_text, bool is_exploration, u8 *splice_buf,
+ u32 splice_len, u32 max_len) {
+
+ if (!buf || !len) { return 0; }
+
+ u32 *mutation_array;
+ static u8 *tmp_buf = NULL;
+ static u32 tmp_buf_size = 0;
+
+ if (max_len > tmp_buf_size) {
+
+ if (tmp_buf) {
+
+ u8 *ptr = realloc(tmp_buf, max_len);
+
+ if (!ptr) {
+
+ return 0;
+
+ } else {
+
+ tmp_buf = ptr;
+
+ }
+
+ } else {
+
+ if ((tmp_buf = malloc(max_len)) == NULL) { return 0; }
+
+ }
+
+ tmp_buf_size = max_len;
+
+ }
+
+ if (is_text) {
+
+ if (is_exploration) {
+
+ mutation_array = (u32 *)&mutation_strategy_exploration_text;
+
+ } else {
+
+ mutation_array = (u32 *)&mutation_strategy_exploitation_text;
+
+ }
+
+ } else {
+
+ if (is_exploration) {
+
+ mutation_array = (u32 *)&mutation_strategy_exploration_binary;
+
+ } else {
+
+ mutation_array = (u32 *)&mutation_strategy_exploitation_binary;
+
+ }
+
+ }
+
+ for (u32 step = 0; step < steps; ++step) {
+
+ retry_havoc_step: {
+
+ u32 r = rand_below(afl, MUT_STRATEGY_ARRAY_SIZE), item;
+
+ switch (mutation_array[r]) {
+
+ case MUT_FLIPBIT: {
+
+ /* Flip a single bit somewhere. Spooky! */
+ u8 bit = rand_below(afl, 8);
+ u32 off = rand_below(afl, len);
+ buf[off] ^= 1 << bit;
+
+ break;
+
+ }
+
+ case MUT_INTERESTING8: {
+
+ /* Set byte to interesting value. */
+
+ item = rand_below(afl, sizeof(interesting_8));
+ buf[rand_below(afl, len)] = interesting_8[item];
+ break;
+
+ }
+
+ case MUT_INTERESTING16: {
+
+ /* Set word to interesting value, little endian. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ item = rand_below(afl, sizeof(interesting_16) >> 1);
+ *(u16 *)(buf + rand_below(afl, len - 1)) = interesting_16[item];
+
+ break;
+
+ }
+
+ case MUT_INTERESTING16BE: {
+
+ /* Set word to interesting value, big endian. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ item = rand_below(afl, sizeof(interesting_16) >> 1);
+ *(u16 *)(buf + rand_below(afl, len - 1)) = SWAP16(interesting_16[item]);
+
+ break;
+
+ }
+
+ case MUT_INTERESTING32: {
+
+ /* Set dword to interesting value, little endian. */
+
+ if (unlikely(len < 4)) { break; } // no retry
+
+ item = rand_below(afl, sizeof(interesting_32) >> 2);
+ *(u32 *)(buf + rand_below(afl, len - 3)) = interesting_32[item];
+
+ break;
+
+ }
+
+ case MUT_INTERESTING32BE: {
+
+ /* Set dword to interesting value, big endian. */
+
+ if (unlikely(len < 4)) { break; } // no retry
+
+ item = rand_below(afl, sizeof(interesting_32) >> 2);
+ *(u32 *)(buf + rand_below(afl, len - 3)) = SWAP32(interesting_32[item]);
+
+ break;
+
+ }
+
+ case MUT_ARITH8_: {
+
+ /* Randomly subtract from byte. */
+
+ item = 1 + rand_below(afl, ARITH_MAX);
+ buf[rand_below(afl, len)] -= item;
+ break;
+
+ }
+
+ case MUT_ARITH8: {
+
+ /* Randomly add to byte. */
+
+ item = 1 + rand_below(afl, ARITH_MAX);
+ buf[rand_below(afl, len)] += item;
+ break;
+
+ }
+
+ case MUT_ARITH16_: {
+
+ /* Randomly subtract from word, little endian. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ u32 pos = rand_below(afl, len - 1);
+ item = 1 + rand_below(afl, ARITH_MAX);
+ *(u16 *)(buf + pos) -= item;
+
+ break;
+
+ }
+
+ case MUT_ARITH16BE_: {
+
+ /* Randomly subtract from word, big endian. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ u32 pos = rand_below(afl, len - 1);
+ u16 num = 1 + rand_below(afl, ARITH_MAX);
+ *(u16 *)(buf + pos) = SWAP16(SWAP16(*(u16 *)(buf + pos)) - num);
+
+ break;
+
+ }
+
+ case MUT_ARITH16: {
+
+ /* Randomly add to word, little endian. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ u32 pos = rand_below(afl, len - 1);
+ item = 1 + rand_below(afl, ARITH_MAX);
+ *(u16 *)(buf + pos) += item;
+
+ break;
+
+ }
+
+ case MUT_ARITH16BE: {
+
+ /* Randomly add to word, big endian. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ u32 pos = rand_below(afl, len - 1);
+ u16 num = 1 + rand_below(afl, ARITH_MAX);
+ *(u16 *)(buf + pos) = SWAP16(SWAP16(*(u16 *)(buf + pos)) + num);
+
+ break;
+
+ }
+
+ case MUT_ARITH32_: {
+
+ /* Randomly subtract from dword, little endian. */
+
+ if (unlikely(len < 4)) { break; } // no retry
+
+ u32 pos = rand_below(afl, len - 3);
+ item = 1 + rand_below(afl, ARITH_MAX);
+ *(u32 *)(buf + pos) -= item;
+
+ break;
+
+ }
+
+ case MUT_ARITH32BE_: {
+
+ /* Randomly subtract from dword, big endian. */
+
+ if (unlikely(len < 4)) { break; } // no retry
+
+ u32 pos = rand_below(afl, len - 3);
+ u32 num = 1 + rand_below(afl, ARITH_MAX);
+ *(u32 *)(buf + pos) = SWAP32(SWAP32(*(u32 *)(buf + pos)) - num);
+
+ break;
+
+ }
+
+ case MUT_ARITH32: {
+
+ /* Randomly add to dword, little endian. */
+
+ if (unlikely(len < 4)) { break; } // no retry
+
+ u32 pos = rand_below(afl, len - 3);
+ item = 1 + rand_below(afl, ARITH_MAX);
+ *(u32 *)(buf + pos) += item;
+
+ break;
+
+ }
+
+ case MUT_ARITH32BE: {
+
+ /* Randomly add to dword, big endian. */
+
+ if (unlikely(len < 4)) { break; } // no retry
+
+ u32 pos = rand_below(afl, len - 3);
+ u32 num = 1 + rand_below(afl, ARITH_MAX);
+ *(u32 *)(buf + pos) = SWAP32(SWAP32(*(u32 *)(buf + pos)) + num);
+
+ break;
+
+ }
+
+ case MUT_RAND8: {
+
+ /* Just set a random byte to a random value. Because,
+ why not. We use XOR with 1-255 to eliminate the
+ possibility of a no-op. */
+
+ u32 pos = rand_below(afl, len);
+ item = 1 + rand_below(afl, 255);
+ buf[pos] ^= item;
+ break;
+
+ }
+
+ case MUT_CLONE_COPY: {
+
+ if (likely(len + HAVOC_BLK_XL < max_len)) {
+
+ /* Clone bytes. */
+
+ u32 clone_len = choose_block_len(afl, len);
+ u32 clone_from = rand_below(afl, len - clone_len + 1);
+ u32 clone_to = rand_below(afl, len);
+
+ /* Head */
+
+ memcpy(tmp_buf, buf, clone_to);
+
+ /* Inserted part */
+
+ memcpy(tmp_buf + clone_to, buf + clone_from, clone_len);
+
+ /* Tail */
+ memcpy(tmp_buf + clone_to + clone_len, buf + clone_to,
+ len - clone_to);
+
+ len += clone_len;
+ memcpy(buf, tmp_buf, len);
+
+ } else if (unlikely(len < 8)) {
+
+ break;
+
+ } else {
+
+ goto retry_havoc_step;
+
+ }
+
+ break;
+
+ }
+
+ case MUT_CLONE_FIXED: {
+
+ if (likely(len + HAVOC_BLK_XL < max_len)) {
+
+ /* Insert a block of constant bytes (25%). */
+
+ u32 clone_len = choose_block_len(afl, HAVOC_BLK_XL);
+ u32 clone_to = rand_below(afl, len);
+ u32 strat = rand_below(afl, 2);
+ u32 clone_from = clone_to ? clone_to - 1 : 0;
+ item = strat ? rand_below(afl, 256) : buf[clone_from];
+
+ /* Head */
+
+ memcpy(tmp_buf, buf, clone_to);
+
+ /* Inserted part */
+
+ memset(tmp_buf + clone_to, item, clone_len);
+
+ /* Tail */
+ memcpy(tmp_buf + clone_to + clone_len, buf + clone_to,
+ len - clone_to);
+
+ len += clone_len;
+ memcpy(buf, tmp_buf, len);
+
+ } else if (unlikely(len < 8)) {
+
+ break;
+
+ } else {
+
+ goto retry_havoc_step;
+
+ }
+
+ break;
+
+ }
+
+ case MUT_OVERWRITE_COPY: {
+
+ /* Overwrite bytes with a randomly selected chunk bytes. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ u32 copy_len = choose_block_len(afl, len - 1);
+ u32 copy_from = rand_below(afl, len - copy_len + 1);
+ u32 copy_to = rand_below(afl, len - copy_len + 1);
+
+ if (likely(copy_from != copy_to)) {
+
+ memmove(buf + copy_to, buf + copy_from, copy_len);
+
+ }
+
+ break;
+
+ }
+
+ case MUT_OVERWRITE_FIXED: {
+
+ /* Overwrite bytes with fixed bytes. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ u32 copy_len = choose_block_len(afl, len - 1);
+ u32 copy_to = rand_below(afl, len - copy_len + 1);
+ u32 strat = rand_below(afl, 2);
+ u32 copy_from = copy_to ? copy_to - 1 : 0;
+ item = strat ? rand_below(afl, 256) : buf[copy_from];
+ memset(buf + copy_to, item, copy_len);
+
+ break;
+
+ }
+
+ case MUT_BYTEADD: {
+
+ /* Increase byte by 1. */
+
+ buf[rand_below(afl, len)]++;
+ break;
+
+ }
+
+ case MUT_BYTESUB: {
+
+ /* Decrease byte by 1. */
+
+ buf[rand_below(afl, len)]--;
+ break;
+
+ }
+
+ case MUT_FLIP8: {
+
+ /* Flip byte. */
+
+ buf[rand_below(afl, len)] ^= 0xff;
+ break;
+
+ }
+
+ case MUT_SWITCH: {
+
+ if (unlikely(len < 4)) { break; } // no retry
+
+ /* Switch bytes. */
+
+ u32 to_end, switch_to, switch_len, switch_from;
+ switch_from = rand_below(afl, len);
+ do {
+
+ switch_to = rand_below(afl, len);
+
+ } while (unlikely(switch_from == switch_to));
+
+ if (switch_from < switch_to) {
+
+ switch_len = switch_to - switch_from;
+ to_end = len - switch_to;
+
+ } else {
+
+ switch_len = switch_from - switch_to;
+ to_end = len - switch_from;
+
+ }
+
+ switch_len = choose_block_len(afl, MIN(switch_len, to_end));
+
+ /* Backup */
+
+ memcpy(tmp_buf, buf + switch_from, switch_len);
+
+ /* Switch 1 */
+
+ memcpy(buf + switch_from, buf + switch_to, switch_len);
+
+ /* Switch 2 */
+
+ memcpy(buf + switch_to, tmp_buf, switch_len);
+
+ break;
+
+ }
+
+ case MUT_DEL: {
+
+ /* Delete bytes. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ /* Don't delete too much. */
+
+ u32 del_len = choose_block_len(afl, len - 1);
+ u32 del_from = rand_below(afl, len - del_len + 1);
+ memmove(buf + del_from, buf + del_from + del_len,
+ len - del_from - del_len);
+ len -= del_len;
+
+ break;
+
+ }
+
+ case MUT_SHUFFLE: {
+
+ /* Shuffle bytes. */
+
+ if (unlikely(len < 4)) { break; } // no retry
+
+ u32 blen = choose_block_len(afl, len - 1);
+ u32 off = rand_below(afl, len - blen + 1);
+
+ for (u32 i = blen - 1; i > 0; i--) {
+
+ u32 j;
+ do {
+
+ j = rand_below(afl, i + 1);
+
+ } while (unlikely(i == j));
+
+ u8 temp = buf[off + i];
+ buf[off + i] = buf[off + j];
+ buf[off + j] = temp;
+
+ }
+
+ break;
+
+ }
+
+ case MUT_DELONE: {
+
+ /* Delete bytes. */
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ /* Don't delete too much. */
+
+ u32 del_len = 1;
+ u32 del_from = rand_below(afl, len - del_len + 1);
+ memmove(buf + del_from, buf + del_from + del_len,
+ len - del_from - del_len);
+
+ len -= del_len;
+
+ break;
+
+ }
+
+ case MUT_INSERTONE: {
+
+ if (unlikely(len < 2)) { break; } // no retry
+
+ u32 clone_len = 1;
+ u32 clone_to = rand_below(afl, len);
+ u32 strat = rand_below(afl, 2);
+ u32 clone_from = clone_to ? clone_to - 1 : 0;
+ item = strat ? rand_below(afl, 256) : buf[clone_from];
+
+ /* Head */
+
+ memcpy(tmp_buf, buf, clone_to);
+
+ /* Inserted part */
+
+ memset(tmp_buf + clone_to, item, clone_len);
+
+ /* Tail */
+ memcpy(tmp_buf + clone_to + clone_len, buf + clone_to, len - clone_to);
+
+ len += clone_len;
+ memcpy(buf, tmp_buf, len);
+
+ break;
+
+ }
+
+ case MUT_ASCIINUM: {
+
+ if (unlikely(len < 4)) { break; } // no retry
+
+ u32 off = rand_below(afl, len), off2 = off, cnt = 0;
+
+ while (off2 + cnt < len && !isdigit(buf[off2 + cnt])) {
+
+ ++cnt;
+
+ }
+
+ // none found, wrap
+ if (off2 + cnt == len) {
+
+ off2 = 0;
+ cnt = 0;
+
+ while (cnt < off && !isdigit(buf[off2 + cnt])) {
+
+ ++cnt;
+
+ }
+
+ if (cnt == off) {
+
+ if (len < 8) {
+
+ break;
+
+ } else {
+
+ goto retry_havoc_step;
+
+ }
+
+ }
+
+ }
+
+ off = off2 + cnt;
+ off2 = off + 1;
+
+ while (off2 < len && isdigit(buf[off2])) {
+
+ ++off2;
+
+ }
+
+ s64 val = buf[off] - '0';
+ for (u32 i = off + 1; i < off2; ++i) {
+
+ val = (val * 10) + buf[i] - '0';
+
+ }
+
+ if (off && buf[off - 1] == '-') { val = -val; }
+
+ u32 strat = rand_below(afl, 8);
+ switch (strat) {
+
+ case 0:
+ val++;
+ break;
+ case 1:
+ val--;
+ break;
+ case 2:
+ val *= 2;
+ break;
+ case 3:
+ val /= 2;
+ break;
+ case 4:
+ if (likely(val && (u64)val < 0x19999999)) {
+
+ val = (u64)rand_next(afl) % (u64)((u64)val * 10);
+
+ } else {
+
+ val = rand_below(afl, 256);
+
+ }
+
+ break;
+ case 5:
+ val += rand_below(afl, 256);
+ break;
+ case 6:
+ val -= rand_below(afl, 256);
+ break;
+ case 7:
+ val = ~(val);
+ break;
+
+ }
+
+ char numbuf[32];
+ snprintf(numbuf, sizeof(buf), "%" PRId64, val);
+ u32 old_len = off2 - off;
+ u32 new_len = strlen(numbuf);
+
+ if (old_len == new_len) {
+
+ memcpy(buf + off, numbuf, new_len);
+
+ } else {
+
+ /* Head */
+
+ memcpy(tmp_buf, buf, off);
+
+ /* Inserted part */
+
+ memcpy(tmp_buf + off, numbuf, new_len);
+
+ /* Tail */
+ memcpy(tmp_buf + off + new_len, buf + off2, len - off2);
+
+ len += (new_len - old_len);
+ memcpy(buf, tmp_buf, len);
+
+ }
+
+ // fprintf(stderr, "AFTER : %s\n", buf);
+ break;
+
+ }
+
+ case MUT_INSERTASCIINUM: {
+
+ u32 ins_len = 1 + rand_below(afl, 8);
+ u32 pos = rand_below(afl, len);
+
+ /* Insert ascii number. */
+ if (unlikely(len < pos + ins_len)) {
+
+ // no retry if we have a small input
+ if (unlikely(len < 8)) {
+
+ break;
+
+ } else {
+
+ goto retry_havoc_step;
+
+ }
+
+ }
+
+ u64 val = rand_next(afl);
+ char numbuf[32];
+ snprintf(numbuf, sizeof(numbuf), "%llu", val);
+ size_t val_len = strlen(numbuf), off;
+
+ if (ins_len > val_len) {
+
+ ins_len = val_len;
+ off = 0;
+
+ } else {
+
+ off = val_len - ins_len;
+
+ }
+
+ memcpy(buf + pos, numbuf + off, ins_len);
+
+ break;
+
+ }
+
+ case MUT_EXTRA_OVERWRITE: {
+
+ if (unlikely(!afl->extras_cnt)) { goto retry_havoc_step; }
+
+ /* Use the dictionary. */
+
+ u32 use_extra = rand_below(afl, afl->extras_cnt);
+ u32 extra_len = afl->extras[use_extra].len;
+
+ if (unlikely(extra_len > len)) { goto retry_havoc_step; }
+
+ u32 insert_at = rand_below(afl, len - extra_len + 1);
+ memcpy(buf + insert_at, afl->extras[use_extra].data, extra_len);
+
+ break;
+
+ }
+
+ case MUT_EXTRA_INSERT: {
+
+ if (unlikely(!afl->extras_cnt)) { goto retry_havoc_step; }
+
+ u32 use_extra = rand_below(afl, afl->extras_cnt);
+ u32 extra_len = afl->extras[use_extra].len;
+ if (unlikely(len + extra_len >= max_len)) { goto retry_havoc_step; }
+
+ u8 *ptr = afl->extras[use_extra].data;
+ u32 insert_at = rand_below(afl, len + 1);
+
+ /* Tail */
+ memmove(buf + insert_at + extra_len, buf + insert_at, len - insert_at);
+
+ /* Inserted part */
+ memcpy(buf + insert_at, ptr, extra_len);
+ len += extra_len;
+
+ break;
+
+ }
+
+ case MUT_AUTO_EXTRA_OVERWRITE: {
+
+ if (unlikely(!afl->a_extras_cnt)) { goto retry_havoc_step; }
+
+ /* Use the dictionary. */
+
+ u32 use_extra = rand_below(afl, afl->a_extras_cnt);
+ u32 extra_len = afl->a_extras[use_extra].len;
+
+ if (unlikely(extra_len > len)) { goto retry_havoc_step; }
+
+ u32 insert_at = rand_below(afl, len - extra_len + 1);
+ memcpy(buf + insert_at, afl->a_extras[use_extra].data, extra_len);
+
+ break;
+
+ }
+
+ case MUT_AUTO_EXTRA_INSERT: {
+
+ if (unlikely(!afl->a_extras_cnt)) { goto retry_havoc_step; }
+
+ u32 use_extra = rand_below(afl, afl->a_extras_cnt);
+ u32 extra_len = afl->a_extras[use_extra].len;
+ if (unlikely(len + extra_len >= max_len)) { goto retry_havoc_step; }
+
+ u8 *ptr = afl->a_extras[use_extra].data;
+ u32 insert_at = rand_below(afl, len + 1);
+
+ /* Tail */
+ memmove(buf + insert_at + extra_len, buf + insert_at, len - insert_at);
+
+ /* Inserted part */
+ memcpy(buf + insert_at, ptr, extra_len);
+ len += extra_len;
+
+ break;
+
+ }
+
+ case MUT_SPLICE_OVERWRITE: {
+
+ if (unlikely(!splice_buf || !splice_len)) { goto retry_havoc_step; }
+
+ /* overwrite mode */
+
+ u32 copy_from, copy_to, copy_len;
+
+ copy_len = choose_block_len(afl, splice_len - 1);
+
+ if (copy_len > len) copy_len = len;
+
+ copy_from = rand_below(afl, splice_len - copy_len + 1);
+ copy_to = rand_below(afl, len - copy_len + 1);
+ memmove(buf + copy_to, splice_buf + copy_from, copy_len);
+
+ break;
+
+ }
+
+ case MUT_SPLICE_INSERT: {
+
+ if (unlikely(!splice_buf || !splice_len)) { goto retry_havoc_step; }
+
+ if (unlikely(len + HAVOC_BLK_XL >= max_len)) { goto retry_havoc_step; }
+
+ /* insert mode */
+
+ u32 clone_from, clone_to, clone_len;
+
+ clone_len = choose_block_len(afl, splice_len);
+ clone_from = rand_below(afl, splice_len - clone_len + 1);
+ clone_to = rand_below(afl, len + 1);
+
+ /* Head */
+
+ memcpy(tmp_buf, buf, clone_to);
+
+ /* Inserted part */
+
+ memcpy(tmp_buf + clone_to, splice_buf + clone_from, clone_len);
+
+ /* Tail */
+ memcpy(tmp_buf + clone_to + clone_len, buf + clone_to, len - clone_to);
+
+ len += clone_len;
+ memcpy(buf, tmp_buf, len);
+
+ break;
+
+ }
+
+ }
+
+ }
+
+ }
+
+ return len;
+
+}
+
+#endif /* !AFL_MUTATIONS_H */
+
diff --git a/include/afl-prealloc.h b/include/afl-prealloc.h
index d19a7b5..3c621d7 100644
--- a/include/afl-prealloc.h
+++ b/include/afl-prealloc.h
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/include/alloc-inl.h b/include/alloc-inl.h
index 1e9a192..0aa417b 100644
--- a/include/alloc-inl.h
+++ b/include/alloc-inl.h
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -322,7 +322,7 @@
static inline void *DFL_ck_realloc(void *orig, u32 size) {
void *ret;
- u32 old_size = 0;
+ u32 old_size = 0;
if (!size) {
@@ -392,7 +392,7 @@
static inline u8 *DFL_ck_strdup(u8 *str) {
void *ret;
- u32 size;
+ u32 size;
if (!str) return NULL;
@@ -438,14 +438,14 @@
void *ptr;
char *file, *func;
- u32 line;
+ u32 line;
};
#ifdef AFL_MAIN
struct TRK_obj *TRK[ALLOC_BUCKETS];
-u32 TRK_cnt[ALLOC_BUCKETS];
+u32 TRK_cnt[ALLOC_BUCKETS];
#define alloc_report() TRK_report()
diff --git a/include/android-ashmem.h b/include/android-ashmem.h
index 1bfd322..065c213 100644
--- a/include/android-ashmem.h
+++ b/include/android-ashmem.h
@@ -2,7 +2,9 @@
#ifndef _ANDROID_ASHMEM_H
#define _ANDROID_ASHMEM_H
- #define _GNU_SOURCE
+ #ifndef _GNU_SOURCE
+ #define _GNU_SOURCE
+ #endif
#include <sys/syscall.h>
#include <unistd.h>
#include <fcntl.h>
diff --git a/include/cmplog.h b/include/cmplog.h
index e482144..6bfc146 100644
--- a/include/cmplog.h
+++ b/include/cmplog.h
@@ -12,7 +12,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/include/common.h b/include/common.h
index 8d85d20..0df07de 100644
--- a/include/common.h
+++ b/include/common.h
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -115,6 +115,11 @@
u8 *stringify_time_diff(u8 *buf, size_t len, u64 cur_ms, u64 event_ms);
+/* Unsafe describe time delta as simple string.
+ Returns a pointer to buf for convenience. */
+
+u8 *u_simplestring_time_diff(u8 *buf, u64 cur_ms, u64 event_ms);
+
/* Unsafe Describe integer. The buf sizes are not checked.
This is unsafe but fast.
Will return buf for convenience. */
diff --git a/include/config.h b/include/config.h
index 194786f..9349828 100644
--- a/include/config.h
+++ b/include/config.h
@@ -5,12 +5,12 @@
Originally written by Michal Zalewski
Now maintained by Marc Heuse <mh@mh-sec.de>,
- Heiko Eißfeldt <heiko.eissfeldt@hexco.de>,
- Andrea Fioraldi <andreafioraldi@gmail.com>,
Dominik Maier <mail@dmnk.co>
+ Andrea Fioraldi <andreafioraldi@gmail.com>,
+ Heiko Eissfeldt <heiko.eissfeldt@hexco.de>,
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -26,7 +26,7 @@
/* Version string: */
// c = release, a = volatile github dev, e = experimental branch
-#define VERSION "++4.07a"
+#define VERSION "++4.10c"
/******************************************************
* *
@@ -43,9 +43,27 @@
Default: 8MB (defined in bytes) */
#define DEFAULT_SHMEM_SIZE (8 * 1024 * 1024)
+/* Default time until when no more coverage finds are happening afl-fuzz
+ switches to exploitation mode. It automatically switches back when new
+ coverage is found.
+ Default: 300 (seconds) */
+#define STRATEGY_SWITCH_TIME 1000
+
/* Default file permission umode when creating files (default: 0600) */
#define DEFAULT_PERMISSION 0600
+/* SkipDet's global configuration */
+
+#define MINIMAL_BLOCK_SIZE 64
+#define SMALL_DET_TIME (60 * 1000 * 1000U)
+#define MAXIMUM_INF_EXECS (16 * 1024U)
+#define MAXIMUM_QUICK_EFF_EXECS (64 * 1024U)
+#define THRESHOLD_DEC_TIME (20 * 60 * 1000U)
+
+/* Set the Prob of selecting eff_bytes 3 times more than original,
+ Now disabled */
+#define EFF_HAVOC_RATE 3
+
/* CMPLOG/REDQUEEN TUNING
*
* Here you can modify tuning and solving options for CMPLOG.
@@ -54,10 +72,6 @@
*
*/
-/* if TRANSFORM is enabled with '-l T', this additionally enables base64
- encoding/decoding */
-// #define CMPLOG_SOLVE_TRANSFORM_BASE64
-
/* If a redqueen pass finds more than one solution, try to combine them? */
#define CMPLOG_COMBINE
@@ -65,10 +79,10 @@
#define CMPLOG_CORPUS_PERCENT 5U
/* Number of potential positions from which we decide if cmplog becomes
- useless, default 8096 */
+ useless, default 12288 */
#define CMPLOG_POSITIONS_MAX (12 * 1024)
-/* Maximum allowed fails per CMP value. Default: 128 */
+/* Maximum allowed fails per CMP value. Default: 96 */
#define CMPLOG_FAIL_MAX 96
/* -------------------------------------*/
@@ -118,9 +132,9 @@
// #define _WANT_ORIGINAL_AFL_ALLOC
-/* Comment out to disable fancy ANSI boxes and use poor man's 7-bit UI: */
+/* Comment out to disable fancy boxes and use poor man's 7-bit UI: */
-#ifndef ANDROID_DISABLE_FANCY // Fancy boxes are ugly from adb
+#ifndef DISABLE_FANCY
#define FANCY_BOXES
#endif
@@ -354,9 +368,10 @@
65535, /* Overflow unsig 16-bit when incremented */ \
65536, /* Overflow unsig 16 bit */ \
100663045, /* Large positive number (endian-agnostic) */ \
+ 2139095040, /* float infinite */ \
2147483647 /* Overflow signed 32-bit when incremented */
-#define INTERESTING_32_LEN 8
+#define INTERESTING_32_LEN 9
/***********************************************************
* *
@@ -440,7 +455,15 @@
after changing this - otherwise, SEGVs may ensue. */
#define MAP_SIZE_POW2 16
+
+/* Do not change this unless you really know what you are doing. */
+
#define MAP_SIZE (1U << MAP_SIZE_POW2)
+#if MAP_SIZE <= 65536
+ #define MAP_INITIAL_SIZE (2 << 20) // = 2097152
+#else
+ #define MAP_INITIAL_SIZE MAP_SIZE
+#endif
/* Maximum allocator request size (keep well under INT_MAX): */
diff --git a/include/debug.h b/include/debug.h
index cd621a7..4b812f8 100644
--- a/include/debug.h
+++ b/include/debug.h
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -116,7 +116,7 @@
* Box drawing sequences *
*************************/
-#ifdef FANCY_BOXES
+#ifdef FANCY_BOXES_NO_UTF
#define SET_G1 "\x1b)0" /* Set G1 for box drawing */
#define RESET_G1 "\x1b)B" /* Reset G1 to ASCII */
@@ -136,22 +136,43 @@
#else
- #define SET_G1 ""
- #define RESET_G1 ""
- #define bSTART ""
- #define bSTOP ""
- #define bH "-"
- #define bV "|"
- #define bLT "+"
- #define bRT "+"
- #define bLB "+"
- #define bRB "+"
- #define bX "+"
- #define bVR "+"
- #define bVL "+"
- #define bHT "+"
- #define bHB "+"
+ #ifdef FANCY_BOXES
+ #define SET_G1 ""
+ #define RESET_G1 ""
+ #define bSTART ""
+ #define bSTOP ""
+ #define bH "\u2500" /* Horizontal line */
+ #define bV "\u2502" /* Vertical line */
+ #define bLT "\u250c" /* Left top corner */
+ #define bRT "\u2510" /* Right top corner */
+ #define bLB "\u2514" /* Left bottom corner */
+ #define bRB "\u2518" /* Right bottom corner */
+ #define bX "\u253c" /* Cross */
+ #define bVR "\u251c" /* Vertical, branch right */
+ #define bVL "\u2524" /* Vertical, branch left */
+ #define bHT "\u2534" /* Horizontal, branch top */
+ #define bHB "\u252c" /* Horizontal, branch bottom */
+
+ #else
+
+ #define SET_G1 ""
+ #define RESET_G1 ""
+ #define bSTART ""
+ #define bSTOP ""
+ #define bH "-"
+ #define bV "|"
+ #define bLT "+"
+ #define bRT "+"
+ #define bLB "+"
+ #define bRB "+"
+ #define bX "+"
+ #define bVR "+"
+ #define bVL "+"
+ #define bHT "+"
+ #define bHB "+"
+
+ #endif
#endif /* ^FANCY_BOXES */
/***********************
diff --git a/include/envs.h b/include/envs.h
index edfd06e..0f645d2 100644
--- a/include/envs.h
+++ b/include/envs.h
@@ -16,240 +16,104 @@
static char *afl_environment_variables[] = {
- "AFL_ALIGNED_ALLOC",
- "AFL_ALLOW_TMP",
- "AFL_ANALYZE_HEX",
- "AFL_AS",
- "AFL_AUTORESUME",
- "AFL_AS_FORCE_INSTRUMENT",
- "AFL_BENCH_JUST_ONE",
- "AFL_BENCH_UNTIL_CRASH",
- "AFL_CAL_FAST",
- "AFL_CC",
- "AFL_CC_COMPILER",
- "AFL_CMIN_ALLOW_ANY",
- "AFL_CMIN_CRASHES_ONLY",
- "AFL_CMPLOG_ONLY_NEW",
- "AFL_CODE_END",
- "AFL_CODE_START",
- "AFL_COMPCOV_BINNAME",
- "AFL_COMPCOV_LEVEL",
- "AFL_CRASH_EXITCODE",
- "AFL_CUSTOM_MUTATOR_LIBRARY",
- "AFL_CUSTOM_MUTATOR_ONLY",
- "AFL_CUSTOM_INFO_PROGRAM",
- "AFL_CUSTOM_INFO_PROGRAM_ARGV",
- "AFL_CUSTOM_INFO_PROGRAM_INPUT",
- "AFL_CUSTOM_INFO_OUT",
- "AFL_CXX",
- "AFL_CYCLE_SCHEDULES",
- "AFL_DEBUG",
- "AFL_DEBUG_CHILD",
- "AFL_DEBUG_GDB",
- "AFL_DEBUG_UNICORN",
- "AFL_DISABLE_TRIM",
- "AFL_DISABLE_LLVM_INSTRUMENTATION",
- "AFL_DONT_OPTIMIZE",
- "AFL_DRIVER_STDERR_DUPLICATE_FILENAME",
- "AFL_DUMB_FORKSRV",
- "AFL_EARLY_FORKSERVER",
- "AFL_ENTRYPOINT",
- "AFL_EXIT_WHEN_DONE",
- "AFL_EXIT_ON_TIME",
- "AFL_EXIT_ON_SEED_ISSUES",
- "AFL_FAST_CAL",
- "AFL_FORCE_UI",
- "AFL_FRIDA_DEBUG_MAPS",
- "AFL_FRIDA_DRIVER_NO_HOOK",
- "AFL_FRIDA_EXCLUDE_RANGES",
- "AFL_FRIDA_INST_CACHE_SIZE",
- "AFL_FRIDA_INST_COVERAGE_ABSOLUTE",
- "AFL_FRIDA_INST_COVERAGE_FILE",
- "AFL_FRIDA_INST_DEBUG_FILE",
- "AFL_FRIDA_INST_INSN",
- "AFL_FRIDA_INST_JIT",
- "AFL_FRIDA_INST_NO_CACHE",
- "AFL_FRIDA_INST_NO_DYNAMIC_LOAD",
- "AFL_FRIDA_INST_NO_OPTIMIZE",
- "AFL_FRIDA_INST_NO_PREFETCH",
- "AFL_FRIDA_INST_NO_PREFETCH_BACKPATCH",
+ "AFL_ALIGNED_ALLOC", "AFL_ALLOW_TMP", "AFL_ANALYZE_HEX", "AFL_AS",
+ "AFL_AUTORESUME", "AFL_AS_FORCE_INSTRUMENT", "AFL_BENCH_JUST_ONE",
+ "AFL_BENCH_UNTIL_CRASH", "AFL_CAL_FAST", "AFL_CC", "AFL_CC_COMPILER",
+ "AFL_CMIN_ALLOW_ANY", "AFL_CMIN_CRASHES_ONLY", "AFL_CMPLOG_ONLY_NEW",
+ "AFL_CODE_END", "AFL_CODE_START", "AFL_COMPCOV_BINNAME",
+ "AFL_COMPCOV_LEVEL", "AFL_CRASH_EXITCODE",
+ "AFL_CRASHING_SEEDS_AS_NEW_CRASH", "AFL_CUSTOM_MUTATOR_LIBRARY",
+ "AFL_CUSTOM_MUTATOR_ONLY", "AFL_CUSTOM_INFO_PROGRAM",
+ "AFL_CUSTOM_INFO_PROGRAM_ARGV", "AFL_CUSTOM_INFO_PROGRAM_INPUT",
+ "AFL_CUSTOM_INFO_OUT", "AFL_CXX", "AFL_CYCLE_SCHEDULES", "AFL_DEBUG",
+ "AFL_DEBUG_CHILD", "AFL_DEBUG_GDB", "AFL_DEBUG_UNICORN", "AFL_DISABLE_TRIM",
+ "AFL_DISABLE_LLVM_INSTRUMENTATION", "AFL_DONT_OPTIMIZE",
+ "AFL_DRIVER_STDERR_DUPLICATE_FILENAME", "AFL_DUMB_FORKSRV",
+ "AFL_EARLY_FORKSERVER", "AFL_ENTRYPOINT", "AFL_EXIT_WHEN_DONE",
+ "AFL_EXIT_ON_TIME", "AFL_EXIT_ON_SEED_ISSUES", "AFL_FAST_CAL",
+ "AFL_FINAL_SYNC", "AFL_FORCE_UI", "AFL_FRIDA_DEBUG_MAPS",
+ "AFL_FRIDA_DRIVER_NO_HOOK", "AFL_FRIDA_EXCLUDE_RANGES",
+ "AFL_FRIDA_INST_CACHE_SIZE", "AFL_FRIDA_INST_COVERAGE_ABSOLUTE",
+ "AFL_FRIDA_INST_COVERAGE_FILE", "AFL_FRIDA_INST_DEBUG_FILE",
+ "AFL_FRIDA_INST_INSN", "AFL_FRIDA_INST_JIT", "AFL_FRIDA_INST_NO_CACHE",
+ "AFL_FRIDA_INST_NO_DYNAMIC_LOAD", "AFL_FRIDA_INST_NO_OPTIMIZE",
+ "AFL_FRIDA_INST_NO_PREFETCH", "AFL_FRIDA_INST_NO_PREFETCH_BACKPATCH",
"AFL_FRIDA_INST_NO_SUPPRESS"
"AFL_FRIDA_INST_RANGES",
- "AFL_FRIDA_INST_REGS_FILE",
- "AFL_FRIDA_INST_SEED",
- "AFL_FRIDA_INST_TRACE",
- "AFL_FRIDA_INST_TRACE_UNIQUE",
- "AFL_FRIDA_INST_UNSTABLE_COVERAGE_FILE",
- "AFL_FRIDA_JS_SCRIPT",
- "AFL_FRIDA_OUTPUT_STDOUT",
- "AFL_FRIDA_OUTPUT_STDERR",
- "AFL_FRIDA_PERSISTENT_ADDR",
- "AFL_FRIDA_PERSISTENT_CNT",
- "AFL_FRIDA_PERSISTENT_DEBUG",
- "AFL_FRIDA_PERSISTENT_HOOK",
- "AFL_FRIDA_PERSISTENT_RET",
- "AFL_FRIDA_STALKER_ADJACENT_BLOCKS",
- "AFL_FRIDA_STALKER_IC_ENTRIES",
- "AFL_FRIDA_STALKER_NO_BACKPATCH",
- "AFL_FRIDA_STATS_FILE",
- "AFL_FRIDA_STATS_INTERVAL",
- "AFL_FRIDA_TRACEABLE",
+ "AFL_FRIDA_INST_REGS_FILE", "AFL_FRIDA_INST_SEED", "AFL_FRIDA_INST_TRACE",
+ "AFL_FRIDA_INST_TRACE_UNIQUE", "AFL_FRIDA_INST_UNSTABLE_COVERAGE_FILE",
+ "AFL_FRIDA_JS_SCRIPT", "AFL_FRIDA_OUTPUT_STDOUT", "AFL_FRIDA_OUTPUT_STDERR",
+ "AFL_FRIDA_PERSISTENT_ADDR", "AFL_FRIDA_PERSISTENT_CNT",
+ "AFL_FRIDA_PERSISTENT_DEBUG", "AFL_FRIDA_PERSISTENT_HOOK",
+ "AFL_FRIDA_PERSISTENT_RET", "AFL_FRIDA_STALKER_ADJACENT_BLOCKS",
+ "AFL_FRIDA_STALKER_IC_ENTRIES", "AFL_FRIDA_STALKER_NO_BACKPATCH",
+ "AFL_FRIDA_STATS_FILE", "AFL_FRIDA_STATS_INTERVAL", "AFL_FRIDA_TRACEABLE",
"AFL_FRIDA_VERBOSE",
"AFL_FUZZER_ARGS", // oss-fuzz
- "AFL_FUZZER_STATS_UPDATE_INTERVAL",
- "AFL_GDB",
- "AFL_GCC_ALLOWLIST",
- "AFL_GCC_DENYLIST",
- "AFL_GCC_BLOCKLIST",
- "AFL_GCC_INSTRUMENT_FILE",
- "AFL_GCC_OUT_OF_LINE",
- "AFL_GCC_SKIP_NEVERZERO",
- "AFL_GCJ",
- "AFL_HANG_TMOUT",
- "AFL_FORKSRV_INIT_TMOUT",
- "AFL_HARDEN",
- "AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES",
- "AFL_IGNORE_PROBLEMS",
- "AFL_IGNORE_PROBLEMS_COVERAGE",
- "AFL_IGNORE_TIMEOUTS",
- "AFL_IGNORE_UNKNOWN_ENVS",
- "AFL_IMPORT_FIRST",
- "AFL_INPUT_LEN_MIN",
- "AFL_INPUT_LEN_MAX",
- "AFL_INST_LIBS",
- "AFL_INST_RATIO",
- "AFL_KEEP_TIMEOUTS",
- "AFL_KILL_SIGNAL",
- "AFL_FORK_SERVER_KILL_SIGNAL",
- "AFL_KEEP_TRACES",
- "AFL_KEEP_ASSEMBLY",
- "AFL_LD_HARD_FAIL",
- "AFL_LD_LIMIT_MB",
- "AFL_LD_NO_CALLOC_OVER",
- "AFL_LD_PASSTHROUGH",
- "AFL_REAL_LD",
- "AFL_LD_PRELOAD",
- "AFL_LD_VERBOSE",
- "AFL_LLVM_ALLOWLIST",
- "AFL_LLVM_DENYLIST",
- "AFL_LLVM_BLOCKLIST",
- "AFL_CMPLOG",
- "AFL_LLVM_CMPLOG",
- "AFL_GCC_CMPLOG",
- "AFL_LLVM_INSTRIM",
- "AFL_LLVM_CALLER",
- "AFL_LLVM_CTX",
- "AFL_LLVM_CTX_K",
- "AFL_LLVM_DICT2FILE",
- "AFL_LLVM_DICT2FILE_NO_MAIN",
- "AFL_LLVM_DOCUMENT_IDS",
- "AFL_LLVM_INSTRIM_LOOPHEAD",
- "AFL_LLVM_INSTRUMENT",
- "AFL_LLVM_LTO_AUTODICTIONARY",
- "AFL_LLVM_AUTODICTIONARY",
+ "AFL_FUZZER_STATS_UPDATE_INTERVAL", "AFL_GDB", "AFL_GCC_ALLOWLIST",
+ "AFL_GCC_DENYLIST", "AFL_GCC_BLOCKLIST", "AFL_GCC_INSTRUMENT_FILE",
+ "AFL_GCC_OUT_OF_LINE", "AFL_GCC_SKIP_NEVERZERO", "AFL_GCJ",
+ "AFL_HANG_TMOUT", "AFL_FORKSRV_INIT_TMOUT", "AFL_HARDEN",
+ "AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES", "AFL_IGNORE_PROBLEMS",
+ "AFL_IGNORE_PROBLEMS_COVERAGE", "AFL_IGNORE_SEED_PROBLEMS",
+ "AFL_IGNORE_TIMEOUTS", "AFL_IGNORE_UNKNOWN_ENVS", "AFL_IMPORT_FIRST",
+ "AFL_INPUT_LEN_MIN", "AFL_INPUT_LEN_MAX", "AFL_INST_LIBS", "AFL_INST_RATIO",
+ "AFL_KEEP_TIMEOUTS", "AFL_KILL_SIGNAL", "AFL_FORK_SERVER_KILL_SIGNAL",
+ "AFL_KEEP_TRACES", "AFL_KEEP_ASSEMBLY", "AFL_LD_HARD_FAIL",
+ "AFL_LD_LIMIT_MB", "AFL_LD_NO_CALLOC_OVER", "AFL_LD_PASSTHROUGH",
+ "AFL_REAL_LD", "AFL_LD_PRELOAD", "AFL_LD_VERBOSE", "AFL_LLVM_ALLOWLIST",
+ "AFL_LLVM_DENYLIST", "AFL_LLVM_BLOCKLIST", "AFL_CMPLOG", "AFL_LLVM_CMPLOG",
+ "AFL_GCC_CMPLOG", "AFL_LLVM_INSTRIM", "AFL_LLVM_CALLER", "AFL_LLVM_CTX",
+ "AFL_LLVM_CTX_K", "AFL_LLVM_DICT2FILE", "AFL_LLVM_DICT2FILE_NO_MAIN",
+ "AFL_LLVM_DOCUMENT_IDS", "AFL_LLVM_INSTRIM_LOOPHEAD", "AFL_LLVM_INSTRUMENT",
+ "AFL_LLVM_LTO_AUTODICTIONARY", "AFL_LLVM_AUTODICTIONARY",
"AFL_LLVM_SKIPSINGLEBLOCK",
- "AFL_LLVM_INSTRIM_SKIPSINGLEBLOCK",
- "AFL_LLVM_LAF_SPLIT_COMPARES",
- "AFL_LLVM_LAF_SPLIT_COMPARES_BITW",
- "AFL_LLVM_LAF_SPLIT_FLOATS",
- "AFL_LLVM_LAF_SPLIT_SWITCHES",
- "AFL_LLVM_LAF_ALL",
- "AFL_LLVM_LAF_TRANSFORM_COMPARES",
- "AFL_LLVM_MAP_ADDR",
- "AFL_LLVM_MAP_DYNAMIC",
- "AFL_LLVM_NGRAM_SIZE",
- "AFL_NGRAM_SIZE",
- "AFL_LLVM_NOT_ZERO",
- "AFL_LLVM_INSTRUMENT_FILE",
- "AFL_LLVM_THREADSAFE_INST",
- "AFL_LLVM_SKIP_NEVERZERO",
- "AFL_NO_AFFINITY",
- "AFL_TRY_AFFINITY",
- "AFL_LLVM_LTO_DONTWRITEID",
+ // Marker: ADD_TO_INJECTIONS
+ "AFL_LLVM_INJECTIONS_ALL", "AFL_LLVM_INJECTIONS_SQL",
+ "AFL_LLVM_INJECTIONS_LDAP", "AFL_LLVM_INJECTIONS_XSS",
+ "AFL_LLVM_INSTRIM_SKIPSINGLEBLOCK", "AFL_LLVM_LAF_SPLIT_COMPARES",
+ "AFL_LLVM_LAF_SPLIT_COMPARES_BITW", "AFL_LLVM_LAF_SPLIT_FLOATS",
+ "AFL_LLVM_LAF_SPLIT_SWITCHES", "AFL_LLVM_LAF_ALL",
+ "AFL_LLVM_LAF_TRANSFORM_COMPARES", "AFL_LLVM_MAP_ADDR",
+ "AFL_LLVM_MAP_DYNAMIC", "AFL_LLVM_NGRAM_SIZE", "AFL_NGRAM_SIZE",
+ "AFL_LLVM_NO_RPATH", "AFL_LLVM_NOT_ZERO", "AFL_LLVM_INSTRUMENT_FILE",
+ "AFL_LLVM_THREADSAFE_INST", "AFL_LLVM_SKIP_NEVERZERO", "AFL_NO_AFFINITY",
+ "AFL_TRY_AFFINITY", "AFL_LLVM_LTO_DONTWRITEID",
"AFL_LLVM_LTO_SKIPINIT"
"AFL_LLVM_LTO_STARTID",
- "AFL_NO_ARITH",
- "AFL_NO_AUTODICT",
- "AFL_NO_BUILTIN",
+ "AFL_FUZZER_LOOPCOUNT", "AFL_NO_ARITH", "AFL_NO_AUTODICT", "AFL_NO_BUILTIN",
#if defined USE_COLOR && !defined ALWAYS_COLORED
- "AFL_NO_COLOR",
- "AFL_NO_COLOUR",
+ "AFL_NO_COLOR", "AFL_NO_COLOUR",
#endif
"AFL_NO_CPU_RED",
- "AFL_NO_CRASH_README",
- "AFL_NO_FORKSRV",
- "AFL_NO_UI",
- "AFL_NO_PYTHON",
- "AFL_NO_STARTUP_CALIBRATION",
- "AFL_NO_WARN_INSTABILITY",
- "AFL_UNTRACER_FILE",
- "AFL_LLVM_USE_TRACE_PC",
- "AFL_MAP_SIZE",
- "AFL_MAPSIZE",
+ "AFL_NO_CFG_FUZZING", // afl.rs rust crate option
+ "AFL_NO_CRASH_README", "AFL_NO_FORKSRV", "AFL_NO_UI", "AFL_NO_PYTHON",
+ "AFL_NO_STARTUP_CALIBRATION", "AFL_NO_WARN_INSTABILITY",
+ "AFL_UNTRACER_FILE", "AFL_LLVM_USE_TRACE_PC", "AFL_MAP_SIZE", "AFL_MAPSIZE",
"AFL_MAX_DET_EXTRAS",
"AFL_NO_X86", // not really an env but we dont want to warn on it
- "AFL_NOOPT",
- "AFL_PASSTHROUGH",
- "AFL_PATH",
- "AFL_PERFORMANCE_FILE",
- "AFL_PERSISTENT_RECORD",
- "AFL_POST_PROCESS_KEEP_ORIGINAL",
- "AFL_PRELOAD",
- "AFL_TARGET_ENV",
- "AFL_PYTHON_MODULE",
- "AFL_QEMU_CUSTOM_BIN",
- "AFL_QEMU_COMPCOV",
- "AFL_QEMU_COMPCOV_DEBUG",
- "AFL_QEMU_DEBUG_MAPS",
- "AFL_QEMU_DISABLE_CACHE",
- "AFL_QEMU_DRIVER_NO_HOOK",
- "AFL_QEMU_FORCE_DFL",
- "AFL_QEMU_PERSISTENT_ADDR",
- "AFL_QEMU_PERSISTENT_CNT",
- "AFL_QEMU_PERSISTENT_GPR",
- "AFL_QEMU_PERSISTENT_HOOK",
- "AFL_QEMU_PERSISTENT_MEM",
- "AFL_QEMU_PERSISTENT_RET",
- "AFL_QEMU_PERSISTENT_RETADDR_OFFSET",
- "AFL_QEMU_PERSISTENT_EXITS",
- "AFL_QEMU_INST_RANGES",
- "AFL_QEMU_EXCLUDE_RANGES",
- "AFL_QEMU_SNAPSHOT",
- "AFL_QEMU_TRACK_UNSTABLE",
- "AFL_QUIET",
- "AFL_RANDOM_ALLOC_CANARY",
- "AFL_REAL_PATH",
- "AFL_SHUFFLE_QUEUE",
- "AFL_SKIP_BIN_CHECK",
- "AFL_SKIP_CPUFREQ",
- "AFL_SKIP_CRASHES",
- "AFL_SKIP_OSSFUZZ",
- "AFL_STATSD",
- "AFL_STATSD_HOST",
- "AFL_STATSD_PORT",
- "AFL_STATSD_TAGS_FLAVOR",
- "AFL_SYNC_TIME",
- "AFL_TESTCACHE_SIZE",
- "AFL_TESTCACHE_ENTRIES",
- "AFL_TMIN_EXACT",
- "AFL_TMPDIR",
- "AFL_TOKEN_FILE",
- "AFL_TRACE_PC",
- "AFL_USE_ASAN",
- "AFL_USE_MSAN",
- "AFL_USE_TRACE_PC",
- "AFL_USE_UBSAN",
- "AFL_USE_TSAN",
- "AFL_USE_CFISAN",
- "AFL_USE_LSAN",
- "AFL_WINE_PATH",
- "AFL_NO_SNAPSHOT",
- "AFL_EXPAND_HAVOC_NOW",
- "AFL_USE_FASAN",
- "AFL_USE_QASAN",
- "AFL_PRINT_FILENAMES",
- "AFL_PIZZA_MODE",
- NULL
+ "AFL_NOOPT", "AFL_NYX_AUX_SIZE", "AFL_NYX_DISABLE_SNAPSHOT_MODE",
+ "AFL_NYX_LOG", "AFL_NYX_REUSE_SNAPSHOT", "AFL_PASSTHROUGH", "AFL_PATH",
+ "AFL_PERFORMANCE_FILE", "AFL_PERSISTENT_RECORD",
+ "AFL_POST_PROCESS_KEEP_ORIGINAL", "AFL_PRELOAD", "AFL_TARGET_ENV",
+ "AFL_PYTHON_MODULE", "AFL_QEMU_CUSTOM_BIN", "AFL_QEMU_COMPCOV",
+ "AFL_QEMU_COMPCOV_DEBUG", "AFL_QEMU_DEBUG_MAPS", "AFL_QEMU_DISABLE_CACHE",
+ "AFL_QEMU_DRIVER_NO_HOOK", "AFL_QEMU_FORCE_DFL", "AFL_QEMU_PERSISTENT_ADDR",
+ "AFL_QEMU_PERSISTENT_CNT", "AFL_QEMU_PERSISTENT_GPR",
+ "AFL_QEMU_PERSISTENT_HOOK", "AFL_QEMU_PERSISTENT_MEM",
+ "AFL_QEMU_PERSISTENT_RET", "AFL_QEMU_PERSISTENT_RETADDR_OFFSET",
+ "AFL_QEMU_PERSISTENT_EXITS", "AFL_QEMU_INST_RANGES",
+ "AFL_QEMU_EXCLUDE_RANGES", "AFL_QEMU_SNAPSHOT", "AFL_QEMU_TRACK_UNSTABLE",
+ "AFL_QUIET", "AFL_RANDOM_ALLOC_CANARY", "AFL_REAL_PATH",
+ "AFL_SHUFFLE_QUEUE", "AFL_SKIP_BIN_CHECK", "AFL_SKIP_CPUFREQ",
+ "AFL_SKIP_CRASHES", "AFL_SKIP_OSSFUZZ", "AFL_STATSD", "AFL_STATSD_HOST",
+ "AFL_STATSD_PORT", "AFL_STATSD_TAGS_FLAVOR", "AFL_SYNC_TIME",
+ "AFL_TESTCACHE_SIZE", "AFL_TESTCACHE_ENTRIES", "AFL_TMIN_EXACT",
+ "AFL_TMPDIR", "AFL_TOKEN_FILE", "AFL_TRACE_PC", "AFL_USE_ASAN",
+ "AFL_USE_MSAN", "AFL_USE_TRACE_PC", "AFL_USE_UBSAN", "AFL_USE_TSAN",
+ "AFL_USE_CFISAN", "AFL_USE_LSAN", "AFL_WINE_PATH", "AFL_NO_SNAPSHOT",
+ "AFL_EXPAND_HAVOC_NOW", "AFL_USE_FASAN", "AFL_USE_QASAN",
+ "AFL_PRINT_FILENAMES", "AFL_PIZZA_MODE", NULL
};
diff --git a/include/forkserver.h b/include/forkserver.h
index f5069ce..be7f9e8 100644
--- a/include/forkserver.h
+++ b/include/forkserver.h
@@ -12,7 +12,7 @@
Dominik Maier <mail@dmnk.co>>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -86,6 +86,8 @@
uint32_t size);
bool (*nyx_remove_work_dir)(const char *workdir);
+ bool (*nyx_config_set_aux_buffer_size)(void *config,
+ uint32_t aux_buffer_size);
} nyx_plugin_handler_t;
@@ -124,7 +126,8 @@
u8 *out_file, /* File to fuzz, if any */
*target_path; /* Path of the target */
- FILE *plot_file; /* Gnuplot output file */
+ FILE *plot_file, /* Gnuplot output file */
+ *det_plot_file;
/* Note: last_run_timed_out is u32 to send it to the child as 4 byte array */
u32 last_run_timed_out; /* Traced process timed out? */
@@ -195,8 +198,10 @@
u32 nyx_id; /* nyx runner id (0 -> master) */
u32 nyx_bind_cpu_id; /* nyx runner cpu id */
char *nyx_aux_string;
+ u32 nyx_aux_string_len;
bool nyx_use_tmp_workdir;
char *nyx_tmp_workdir_path;
+ s32 nyx_log_fd;
#endif
} afl_forkserver_t;
diff --git a/include/hash.h b/include/hash.h
index 0243c5b..5d56a10 100644
--- a/include/hash.h
+++ b/include/hash.h
@@ -15,7 +15,7 @@
Other code written by Michal Zalewski
Copyright 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/include/list.h b/include/list.h
index 283bf03..441eccd 100644
--- a/include/list.h
+++ b/include/list.h
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/include/sharedmem.h b/include/sharedmem.h
index d32bd84..4484066 100644
--- a/include/sharedmem.h
+++ b/include/sharedmem.h
@@ -12,7 +12,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/include/snapshot-inl.h b/include/snapshot-inl.h
index 3864e47..b2c8140 100644
--- a/include/snapshot-inl.h
+++ b/include/snapshot-inl.h
@@ -12,7 +12,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/include/types.h b/include/types.h
index d6476d8..2233213 100644
--- a/include/types.h
+++ b/include/types.h
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/include/xxhash.h b/include/xxhash.h
index 7bc0a14..9a88047 100644
--- a/include/xxhash.h
+++ b/include/xxhash.h
@@ -1,7 +1,7 @@
/*
* xxHash - Extremely Fast Hash algorithm
* Header File
- * Copyright (C) 2012-2023 Yann Collet
+ * Copyright (C) 2012-2024 Yann Collet
*
* BSD 2-Clause License (https://www.opensource.org/licenses/bsd-license.php)
*
@@ -365,7 +365,7 @@
(defined(__cplusplus) || \
(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */))
#include <stdint.h>
-typedef uint32_t XXH32_hash_t;
+typedef uint32_t XXH32_hash_t;
#else
#include <limits.h>
@@ -1082,7 +1082,7 @@
#include <stdalign.h>
#define XXH_ALIGN(n) alignas(n)
#elif defined(__cplusplus) && (__cplusplus >= 201103L) /* >= C++11 */
- /* In C++ alignas() is a keyword */
+ /* In C++ alignas() is a keyword */
#define XXH_ALIGN(n) alignas(n)
#elif defined(__GNUC__)
#define XXH_ALIGN(n) __attribute__((aligned(n)))
@@ -3031,8 +3031,8 @@
__STDC_VERSION__ >= 199901L /* >= C99 */
#define XXH_RESTRICT restrict
#else
- /* Note: it might be useful to define __restrict or __restrict__ for
- * some C++ compilers */
+ /* Note: it might be useful to define __restrict or __restrict__ for
+ * some C++ compilers */
#define XXH_RESTRICT /* disable */
#endif
@@ -3492,8 +3492,8 @@
#define XXH_vec_mulo vec_mulo
#define XXH_vec_mule vec_mule
#elif defined(__clang__) && XXH_HAS_BUILTIN(__builtin_altivec_vmuleuw)
- /* Clang has a better way to control this, we can just use the builtin
- * which doesn't swap. */
+ /* Clang has a better way to control this, we can just use the builtin
+ * which doesn't swap. */
#define XXH_vec_mulo __builtin_altivec_vmulouw
#define XXH_vec_mule __builtin_altivec_vmuleuw
#else
@@ -3604,15 +3604,15 @@
#include <intrin.h>
#define XXH_mult32to64(x, y) __emulu((unsigned)(x), (unsigned)(y))
#else
- /*
- * Downcast + upcast is usually better than masking on older compilers
- * like GCC 4.2 (especially 32-bit ones), all without affecting newer
- * compilers.
- *
- * The other method, (x & 0xFFFFFFFF) * (y & 0xFFFFFFFF), will AND both
- * operands and perform a full 64x64 multiply -- entirely redundant on
- * 32-bit.
- */
+ /*
+ * Downcast + upcast is usually better than masking on older compilers
+ * like GCC 4.2 (especially 32-bit ones), all without affecting newer
+ * compilers.
+ *
+ * The other method, (x & 0xFFFFFFFF) * (y & 0xFFFFFFFF), will AND both
+ * operands and perform a full 64x64 multiply -- entirely redundant on
+ * 32-bit.
+ */
#define XXH_mult32to64(x, y) \
((xxh_u64)(xxh_u32)(x) * (xxh_u64)(xxh_u32)(y))
#endif
diff --git a/injections.dic b/injections.dic
new file mode 100644
index 0000000..4063cd1
--- /dev/null
+++ b/injections.dic
@@ -0,0 +1,7 @@
+"1'\" OR \"1\"=\"1"
+"1\"' OR '1'='1"
+"'\"><FUZZ"
+"*)(FUZZ=*))(|"
+"\";FUZZ;\""
+"';FUZZ;'"
+"$(FUZZ)"
diff --git a/instrumentation/README.injections.md b/instrumentation/README.injections.md
new file mode 100644
index 0000000..16cc371
--- /dev/null
+++ b/instrumentation/README.injections.md
@@ -0,0 +1,48 @@
+# Injection fuzzing
+
+Coverage guided fuzzing so far is only able to detect crashes, so usually
+memory corruption issues, or - if implemented by hand in the harness -
+invariants.
+
+This is a proof-of-concept implementation to additionally hunt for injection
+vulnerabilities.
+It works by instrumenting calls to specific functions and parsing the
+query parameter for a specific unescaped dictionary string, and if detected,
+crashes the target.
+
+This has a very low false positive rate.
+But obviously this can only find injection vulnerailities that are suspectible
+to this specific (but most common) issue. Hence in a rare kind of injection
+vulnerability this won't find the bug - and be a false negative.
+But this can be tweaked by the user - see the HOW TO MODIFY section below.
+
+## How to use
+
+Set one or more of the following environment variables for **compiling**
+the target and - *this is important* - when **fuzzing** the target:
+
+ - `AFL_LLVM_INJECTIONS_SQL`
+ - `AFL_LLVM_INJECTIONS_LDAP`
+ - `AFL_LLVM_INJECTIONS_XSS`
+
+Alternatively you can set `AFL_LLVM_INJECTIONS_ALL` to enable all.
+
+## How to modify
+
+If you want to add more fuctions to check for e.g. SQL injections:
+Add these to `instrumentation/injection-pass.cc` and recompile.
+
+If you want to test for more injection inputs:
+Add the dictionary tokens to `src/afl-fuzz.c` and the check for them to
+`instrumentation/afl-compiler-rt.o.c`.
+
+If you want to add new injection targets:
+You will have to edit all three files.
+
+Just search for:
+```
+// Marker: ADD_TO_INJECTIONS
+```
+in the files to see where this needs to be added.
+
+**NOTE:** pull requests to improve this feature are highly welcome :-)
diff --git a/instrumentation/README.llvm.md b/instrumentation/README.llvm.md
index 126cf1a..34b80c8 100644
--- a/instrumentation/README.llvm.md
+++ b/instrumentation/README.llvm.md
@@ -7,7 +7,7 @@
## 1) Introduction
-! llvm_mode works with llvm versions 3.8 up to 13 !
+! llvm_mode works with llvm versions 3.8 up to 17 - but 13+ is recommended !
The code in this directory allows you to instrument programs for AFL++ using
true compiler-level instrumentation, instead of the more crude assembly-level
diff --git a/instrumentation/README.lto.md b/instrumentation/README.lto.md
index df59cc2..bd479c2 100644
--- a/instrumentation/README.lto.md
+++ b/instrumentation/README.lto.md
@@ -2,7 +2,7 @@
## TL;DR:
-This version requires a LLVM 11 or newer.
+This version requires a LLVM 12 or newer.
1. Use afl-clang-lto/afl-clang-lto++ because the resulting binaries run
slightly faster and give better coverage.
@@ -10,7 +10,7 @@
2. You can use it together with COMPCOV, COMPLOG and the instrument file
listing features.
-3. It only works with LLVM 11 or newer.
+3. It only works with LLVM 12 or newer.
4. AUTODICTIONARY feature (see below)
@@ -60,7 +60,7 @@
[+] Instrumented 12071 locations with no collisions (on average 1046 collisions would be in afl-gcc/afl-clang-fast) (non-hardened mode).
```
-## Getting LLVM 11+
+## Getting LLVM 12+
### Installing llvm
@@ -73,7 +73,7 @@
sudo ./llvm.sh 15 all
```
-LLVM 11 to 16 should be available in all current Linux repositories.
+LLVM 12 to 18 should be available in all current Linux repositories.
## How to build afl-clang-lto
@@ -277,7 +277,7 @@
afl-clang-lto is still work in progress.
Known issues:
-* Anything that LLVM 11+ cannot compile, afl-clang-lto cannot compile either -
+* Anything that LLVM 12+ cannot compile, afl-clang-lto cannot compile either -
obviously.
* Anything that does not compile with LTO, afl-clang-lto cannot compile either -
obviously.
@@ -319,7 +319,7 @@
onwards, and with high optimization the link optimization ruins the instrumented
control flow graph.
-This is all now fixed with LLVM 11+. The llvm's own linker is now able to load
+This is all now fixed with LLVM 12+. The llvm's own linker is now able to load
passes and this bypasses all problems we had.
Happy end :)
diff --git a/instrumentation/SanitizerCoverageLTO.so.cc b/instrumentation/SanitizerCoverageLTO.so.cc
index 2d17ffd..6842302 100644
--- a/instrumentation/SanitizerCoverageLTO.so.cc
+++ b/instrumentation/SanitizerCoverageLTO.so.cc
@@ -331,7 +331,7 @@
#if LLVM_VERSION_MAJOR <= 13
using OptimizationLevel = typename PassBuilder::OptimizationLevel;
#endif
-#if LLVM_VERSION_MAJOR >= 16
+#if LLVM_VERSION_MAJOR >= 15
PB.registerFullLinkTimeOptimizationLastEPCallback(
#else
PB.registerOptimizerLastEPCallback(
@@ -692,33 +692,37 @@
* prototype */
FunctionType *FT = Callee->getFunctionType();
- isStrcmp &= FT->getNumParams() == 2 &&
- FT->getReturnType()->isIntegerTy(32) &&
- FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) ==
- IntegerType::getInt8PtrTy(M.getContext());
- isStrcasecmp &= FT->getNumParams() == 2 &&
- FT->getReturnType()->isIntegerTy(32) &&
- FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) ==
- IntegerType::getInt8PtrTy(M.getContext());
+ isStrcmp &=
+ FT->getNumParams() == 2 &&
+ FT->getReturnType()->isIntegerTy(32) &&
+ FT->getParamType(0) == FT->getParamType(1) &&
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
+ isStrcasecmp &=
+ FT->getNumParams() == 2 &&
+ FT->getReturnType()->isIntegerTy(32) &&
+ FT->getParamType(0) == FT->getParamType(1) &&
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isMemcmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy() &&
FT->getParamType(2)->isIntegerTy();
- isStrncmp &= FT->getNumParams() == 3 &&
- FT->getReturnType()->isIntegerTy(32) &&
- FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) ==
- IntegerType::getInt8PtrTy(M.getContext()) &&
- FT->getParamType(2)->isIntegerTy();
- isStrncasecmp &= FT->getNumParams() == 3 &&
- FT->getReturnType()->isIntegerTy(32) &&
- FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) ==
- IntegerType::getInt8PtrTy(M.getContext()) &&
- FT->getParamType(2)->isIntegerTy();
+ isStrncmp &=
+ FT->getNumParams() == 3 &&
+ FT->getReturnType()->isIntegerTy(32) &&
+ FT->getParamType(0) == FT->getParamType(1) &&
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
+ FT->getParamType(2)->isIntegerTy();
+ isStrncasecmp &=
+ FT->getNumParams() == 3 &&
+ FT->getReturnType()->isIntegerTy(32) &&
+ FT->getParamType(0) == FT->getParamType(1) &&
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
+ FT->getParamType(2)->isIntegerTy();
isStdString &= FT->getNumParams() >= 2 &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy();
@@ -1081,7 +1085,7 @@
}
if (!be_quiet)
- printf("AUTODICTIONARY: %lu string%s found\n", count,
+ printf("AUTODICTIONARY: %zu string%s found\n", count,
count == 1 ? "" : "s");
if (count) {
@@ -1241,7 +1245,11 @@
if (F.empty()) return;
if (F.getName().find(".module_ctor") != std::string::npos)
return; // Should not instrument sanitizer init functions.
+#if LLVM_VERSION_MAJOR >= 18
+ if (F.getName().starts_with("__sanitizer_"))
+#else
if (F.getName().startswith("__sanitizer_"))
+#endif
return; // Don't instrument __sanitizer_* callbacks.
// Don't touch available_externally functions, their actual body is elsewhere.
if (F.getLinkage() == GlobalValue::AvailableExternallyLinkage) return;
@@ -1493,7 +1501,7 @@
Array->setComdat(Comdat);
#endif
Array->setSection(getSectionName(Section));
- Array->setAlignment(Align(DL->getTypeStoreSize(Ty).getFixedSize()));
+ Array->setAlignment(Align(DL->getTypeStoreSize(Ty).getFixedValue()));
GlobalsToAppendToUsed.push_back(Array);
GlobalsToAppendToCompilerUsed.push_back(Array);
MDNode *MD = MDNode::get(F.getContext(), ValueAsMetadata::get(&F));
diff --git a/instrumentation/SanitizerCoveragePCGUARD.so.cc b/instrumentation/SanitizerCoveragePCGUARD.so.cc
index 7171e7a..f88ce12 100644
--- a/instrumentation/SanitizerCoveragePCGUARD.so.cc
+++ b/instrumentation/SanitizerCoveragePCGUARD.so.cc
@@ -214,7 +214,11 @@
#if LLVM_VERSION_MAJOR == 13
using OptimizationLevel = typename PassBuilder::OptimizationLevel;
#endif
+#if LLVM_VERSION_MAJOR >= 16
+ PB.registerOptimizerEarlyEPCallback(
+#else
PB.registerOptimizerLastEPCallback(
+#endif
[](ModulePassManager &MPM, OptimizationLevel OL) {
MPM.addPass(ModuleSanitizerCoverageAFL());
@@ -225,7 +229,6 @@
}
-#if LLVM_VERSION_MAJOR == 1
PreservedAnalyses ModuleSanitizerCoverageAFL::run(Module &M,
ModuleAnalysisManager &MAM) {
@@ -243,50 +246,12 @@
};
- if (!ModuleSancov.instrumentModule(M, DTCallback, PDTCallback))
- return PreservedAnalyses::all();
-
- PreservedAnalyses PA = PreservedAnalyses::none();
- // GlobalsAA is considered stateless and does not get invalidated unless
- // explicitly invalidated; PreservedAnalyses::none() is not enough. Sanitizers
- // make changes that require GlobalsAA to be invalidated.
- PA.abandon<GlobalsAA>();
- return PA;
-
-}
-
-#else
- #if LLVM_VERSION_MAJOR >= 16
-PreservedAnalyses ModuleSanitizerCoverageAFL::run(Module &M,
- ModuleAnalysisManager &MAM) {
-
- #else
-PreservedAnalyses ModuleSanitizerCoverageAFL::run(Module &M,
- ModuleAnalysisManager &MAM) {
-
- #endif
- ModuleSanitizerCoverageAFL ModuleSancov(Options);
- auto &FAM = MAM.getResult<FunctionAnalysisManagerModuleProxy>(M).getManager();
- auto DTCallback = [&FAM](Function &F) -> const DominatorTree * {
-
- return &FAM.getResult<DominatorTreeAnalysis>(F);
-
- };
-
- auto PDTCallback = [&FAM](Function &F) -> const PostDominatorTree * {
-
- return &FAM.getResult<PostDominatorTreeAnalysis>(F);
-
- };
-
if (ModuleSancov.instrumentModule(M, DTCallback, PDTCallback))
return PreservedAnalyses::none();
return PreservedAnalyses::all();
}
-#endif
-
std::pair<Value *, Value *> ModuleSanitizerCoverageAFL::CreateSecStartEnd(
Module &M, const char *Section, Type *Ty) {
@@ -607,7 +572,11 @@
if (!isInInstrumentList(&F, FMNAME)) return;
if (F.getName().find(".module_ctor") != std::string::npos)
return; // Should not instrument sanitizer init functions.
+#if LLVM_VERSION_MAJOR >= 18
+ if (F.getName().starts_with("__sanitizer_"))
+#else
if (F.getName().startswith("__sanitizer_"))
+#endif
return; // Don't instrument __sanitizer_* callbacks.
// Don't touch available_externally functions, their actual body is elewhere.
if (F.getLinkage() == GlobalValue::AvailableExternallyLinkage) return;
@@ -658,6 +627,13 @@
}
+ if (debug) {
+
+ fprintf(stderr, "SanitizerCoveragePCGUARD: instrumenting %s in %s\n",
+ F.getName().str().c_str(), F.getParent()->getName().str().c_str());
+
+ }
+
InjectCoverage(F, BlocksToInstrument, IsLeafFunc);
// InjectTraceForCmp(F, CmpTraceTargets);
// InjectTraceForSwitch(F, SwitchTraceTargets);
@@ -892,7 +868,7 @@
IRB.CreatePointerCast(FunctionGuardArray, IntptrTy),
ConstantInt::get(
IntptrTy,
- (cnt_cov + ++local_selects + AllBlocks.size()) * 4)),
+ (cnt_cov + local_selects++ + AllBlocks.size()) * 4)),
Int32PtrTy);
auto GuardPtr2 = IRB.CreateIntToPtr(
@@ -900,7 +876,7 @@
IRB.CreatePointerCast(FunctionGuardArray, IntptrTy),
ConstantInt::get(
IntptrTy,
- (cnt_cov + ++local_selects + AllBlocks.size()) * 4)),
+ (cnt_cov + local_selects++ + AllBlocks.size()) * 4)),
Int32PtrTy);
result = IRB.CreateSelect(condition, GuardPtr1, GuardPtr2);
@@ -937,7 +913,7 @@
IRB.CreatePointerCast(FunctionGuardArray, IntptrTy),
ConstantInt::get(
IntptrTy,
- (cnt_cov + ++local_selects + AllBlocks.size()) * 4)),
+ (cnt_cov + local_selects++ + AllBlocks.size()) * 4)),
Int32PtrTy);
x = IRB.CreateInsertElement(GuardPtr1, val1, (uint64_t)0);
@@ -946,7 +922,7 @@
IRB.CreatePointerCast(FunctionGuardArray, IntptrTy),
ConstantInt::get(
IntptrTy,
- (cnt_cov + ++local_selects + AllBlocks.size()) * 4)),
+ (cnt_cov + local_selects++ + AllBlocks.size()) * 4)),
Int32PtrTy);
y = IRB.CreateInsertElement(GuardPtr2, val2, (uint64_t)0);
@@ -955,7 +931,7 @@
val1 = IRB.CreateIntToPtr(
IRB.CreateAdd(
IRB.CreatePointerCast(FunctionGuardArray, IntptrTy),
- ConstantInt::get(IntptrTy, (cnt_cov + ++local_selects +
+ ConstantInt::get(IntptrTy, (cnt_cov + local_selects++ +
AllBlocks.size()) *
4)),
Int32PtrTy);
@@ -964,7 +940,7 @@
val2 = IRB.CreateIntToPtr(
IRB.CreateAdd(
IRB.CreatePointerCast(FunctionGuardArray, IntptrTy),
- ConstantInt::get(IntptrTy, (cnt_cov + ++local_selects +
+ ConstantInt::get(IntptrTy, (cnt_cov + local_selects++ +
AllBlocks.size()) *
4)),
Int32PtrTy);
@@ -983,6 +959,7 @@
#endif
{
+ // fprintf(stderr, "UNHANDLED: %u\n", t->getTypeID());
unhandled++;
continue;
diff --git a/instrumentation/afl-compiler-rt.o.c b/instrumentation/afl-compiler-rt.o.c
index 3f8b519..caa3c3a 100644
--- a/instrumentation/afl-compiler-rt.o.c
+++ b/instrumentation/afl-compiler-rt.o.c
@@ -3,7 +3,7 @@
------------------------------------------------
Copyright 2015, 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -22,6 +22,10 @@
#define __USE_GNU
#endif
#include <dlfcn.h>
+
+__attribute__((weak)) void __sanitizer_symbolize_pc(void *, const char *fmt,
+ char *out_buf,
+ size_t out_buf_size);
#endif
#ifdef __ANDROID__
@@ -48,7 +52,7 @@
#include <errno.h>
#include <sys/mman.h>
-#ifndef __HAIKU__
+#if !defined(__HAIKU__) && !defined(__OpenBSD__)
#include <sys/syscall.h>
#endif
#ifndef USEMMAP
@@ -87,17 +91,13 @@
is used for instrumentation output before __afl_map_shm() has a chance to
run. It will end up as .comm, so it shouldn't be too wasteful. */
-#if MAP_SIZE <= 65536
- #define MAP_INITIAL_SIZE 2097152
-#else
- #define MAP_INITIAL_SIZE MAP_SIZE
-#endif
-
#if defined(__HAIKU__)
extern ssize_t _kern_write(int fd, off_t pos, const void *buffer,
size_t bufferSize);
#endif // HAIKU
+char *strcasestr(const char *haystack, const char *needle);
+
static u8 __afl_area_initial[MAP_INITIAL_SIZE];
static u8 *__afl_area_ptr_dummy = __afl_area_initial;
static u8 *__afl_area_ptr_backup = __afl_area_initial;
@@ -128,8 +128,8 @@
uintptr_t base_address;
// PC Guard start/stop
- u32 start;
- u32 stop;
+ u32 *start;
+ u32 *stop;
// PC Table begin/end
const uintptr_t *pcs_beg;
@@ -151,6 +151,18 @@
u32 __afl_pcmap_size = 0;
uintptr_t *__afl_pcmap_ptr = NULL;
+
+typedef struct {
+
+ uintptr_t start;
+ u32 len;
+
+} FilterPCEntry;
+
+u32 __afl_filter_pcs_size = 0;
+FilterPCEntry *__afl_filter_pcs = NULL;
+u8 *__afl_filter_pcs_module = NULL;
+
#endif // __AFL_CODE_COVERAGE
/* 1 if we are running in afl, and the forkserver was started, else 0 */
@@ -189,7 +201,7 @@
/* Debug? */
-static u32 __afl_debug;
+/*static*/ u32 __afl_debug;
/* Already initialized markers */
@@ -673,7 +685,8 @@
if (id_str) {
- if ((__afl_dummy_fd[1] = open("/dev/null", O_WRONLY)) < 0) {
+ // /dev/null doesn't work so we use /dev/urandom
+ if ((__afl_dummy_fd[1] = open("/dev/urandom", O_WRONLY)) < 0) {
if (pipe(__afl_dummy_fd) < 0) { __afl_dummy_fd[1] = 1; }
@@ -877,7 +890,7 @@
if (__afl_debug) {
- fprintf(stderr, "target forkserver recv: %08x\n", was_killed);
+ fprintf(stderr, "DEBUG: target forkserver recv: %08x\n", was_killed);
}
@@ -1144,7 +1157,7 @@
if (__afl_debug) {
- fprintf(stderr, "target forkserver recv: %08x\n", was_killed);
+ fprintf(stderr, "DEBUG: target forkserver recv: %08x\n", was_killed);
}
@@ -1477,6 +1490,7 @@
__afl_debug = 1;
fprintf(stderr, "DEBUG: debug enabled\n");
+ fprintf(stderr, "DEBUG: AFL++ afl-compiler-rt" VERSION "\n");
}
@@ -1589,15 +1603,116 @@
}
#ifdef __AFL_CODE_COVERAGE
-void __sanitizer_cov_pcs_init(const uintptr_t *pcs_beg,
- const uintptr_t *pcs_end) {
+void afl_read_pc_filter_file(const char *filter_file) {
- if (__afl_debug) {
+ FILE *file;
+ char ch;
- fprintf(stderr, "DEBUG: __sanitizer_cov_pcs_init called\n");
+ file = fopen(filter_file, "r");
+ if (file == NULL) {
+
+ perror("Error opening file");
+ return;
}
+ // Check how many PCs we expect to read
+ while ((ch = fgetc(file)) != EOF) {
+
+ if (ch == '\n') { __afl_filter_pcs_size++; }
+
+ }
+
+ // Rewind to actually read the PCs
+ fseek(file, 0, SEEK_SET);
+
+ __afl_filter_pcs = malloc(__afl_filter_pcs_size * sizeof(FilterPCEntry));
+ if (!__afl_filter_pcs) {
+
+ perror("Error allocating PC array");
+ return;
+
+ }
+
+ for (size_t i = 0; i < __afl_filter_pcs_size; i++) {
+
+ fscanf(file, "%lx", &(__afl_filter_pcs[i].start));
+ ch = fgetc(file); // Read tab
+ fscanf(file, "%u", &(__afl_filter_pcs[i].len));
+ ch = fgetc(file); // Read tab
+
+ if (!__afl_filter_pcs_module) {
+
+ // Read the module name and store it.
+ // TODO: We only support one module here right now although
+ // there is technically no reason to support multiple modules
+ // in one go.
+ size_t max_module_len = 255;
+ size_t i = 0;
+ __afl_filter_pcs_module = malloc(max_module_len);
+ while (i < max_module_len - 1 &&
+ (__afl_filter_pcs_module[i] = fgetc(file)) != '\t') {
+
+ ++i;
+
+ }
+
+ __afl_filter_pcs_module[i] = '\0';
+ fprintf(stderr, "DEBUGXXX: Read module name %s\n",
+ __afl_filter_pcs_module);
+
+ }
+
+ while ((ch = fgetc(file)) != '\n' && ch != EOF)
+ ;
+
+ }
+
+ fclose(file);
+
+}
+
+u32 locate_in_pcs(uintptr_t needle, u32 *index) {
+
+ size_t lower_bound = 0;
+ size_t upper_bound = __afl_filter_pcs_size - 1;
+
+ while (lower_bound < __afl_filter_pcs_size && lower_bound <= upper_bound) {
+
+ size_t current_index = lower_bound + (upper_bound - lower_bound) / 2;
+
+ if (__afl_filter_pcs[current_index].start <= needle) {
+
+ if (__afl_filter_pcs[current_index].start +
+ __afl_filter_pcs[current_index].len >
+ needle) {
+
+ // Hit
+ *index = current_index;
+ return 1;
+
+ } else {
+
+ lower_bound = current_index + 1;
+
+ }
+
+ } else {
+
+ if (!current_index) { break; }
+ upper_bound = current_index - 1;
+
+ }
+
+ }
+
+ return 0;
+
+}
+
+void __sanitizer_cov_pcs_init(const uintptr_t *pcs_beg,
+ const uintptr_t *pcs_end) {
+
// If for whatever reason, we cannot get dlinfo here, then pc_guard_init also
// couldn't get it and we'd end up attributing to the wrong module.
Dl_info dlinfo;
@@ -1610,6 +1725,16 @@
}
+ if (__afl_debug) {
+
+ fprintf(
+ stderr,
+ "DEBUG: (%u) __sanitizer_cov_pcs_init called for module %s with %ld "
+ "PCs\n",
+ getpid(), dlinfo.dli_fname, pcs_end - pcs_beg);
+
+ }
+
afl_module_info_t *last_module_info = __afl_module_info;
while (last_module_info && last_module_info->next) {
@@ -1625,34 +1750,78 @@
}
+ if (strcmp(dlinfo.dli_fname, last_module_info->name)) {
+
+ // This can happen with modules being loaded after the forkserver
+ // where we decide to not track the module. In that case we must
+ // not track it here either.
+ fprintf(
+ stderr,
+ "WARNING: __sanitizer_cov_pcs_init module info mismatch: %s vs %s\n",
+ dlinfo.dli_fname, last_module_info->name);
+ return;
+
+ }
+
last_module_info->pcs_beg = pcs_beg;
last_module_info->pcs_end = pcs_end;
+ // This is a direct filter based on symbolizing inside the runtime.
+ // It should only be used with smaller binaries to avoid long startup
+ // times. Currently, this only supports a single token to scan for.
+ const char *pc_filter = getenv("AFL_PC_FILTER");
+
+ // This is a much faster PC filter based on pre-symbolized input data
+ // that is sorted for fast lookup through binary search. This method
+ // of filtering is suitable even for very large binaries.
+ const char *pc_filter_file = getenv("AFL_PC_FILTER_FILE");
+ if (pc_filter_file && !__afl_filter_pcs) {
+
+ afl_read_pc_filter_file(pc_filter_file);
+
+ }
+
// Now update the pcmap. If this is the last module coming in, after all
// pre-loaded code, then this will also map all of our delayed previous
// modules.
-
- if (!__afl_pcmap_ptr) { return; }
-
+ //
for (afl_module_info_t *mod_info = __afl_module_info; mod_info;
mod_info = mod_info->next) {
if (mod_info->mapped) { continue; }
+ if (!mod_info->start) {
+
+ fprintf(stderr,
+ "ERROR: __sanitizer_cov_pcs_init called with mod_info->start == "
+ "NULL (%s)\n",
+ mod_info->name);
+ abort();
+
+ }
+
PCTableEntry *start = (PCTableEntry *)(mod_info->pcs_beg);
PCTableEntry *end = (PCTableEntry *)(mod_info->pcs_end);
+ if (!*mod_info->stop) { continue; }
+
u32 in_module_index = 0;
while (start < end) {
- if (mod_info->start + in_module_index >= __afl_map_size) {
+ if (*mod_info->start + in_module_index >= __afl_map_size) {
- fprintf(stderr, "ERROR: __sanitizer_cov_pcs_init out of bounds?!\n");
+ fprintf(stderr,
+ "ERROR: __sanitizer_cov_pcs_init out of bounds?! Start: %u "
+ "Stop: %u Map Size: %u (%s)\n",
+ *mod_info->start, *mod_info->stop, __afl_map_size,
+ mod_info->name);
abort();
}
+ u32 orig_start_index = *mod_info->start;
+
uintptr_t PC = start->PC;
// This is what `GetPreviousInstructionPc` in sanitizer runtime does
@@ -1662,7 +1831,58 @@
// Calculate relative offset in module
PC = PC - mod_info->base_address;
- __afl_pcmap_ptr[mod_info->start + in_module_index] = PC;
+ if (__afl_pcmap_ptr) {
+
+ __afl_pcmap_ptr[orig_start_index + in_module_index] = PC;
+
+ }
+
+ if (pc_filter) {
+
+ char PcDescr[1024];
+ // This function is a part of the sanitizer run-time.
+ // To use it, link with AddressSanitizer or other sanitizer.
+ __sanitizer_symbolize_pc((void *)start->PC, "%p %F %L", PcDescr,
+ sizeof(PcDescr));
+
+ if (strstr(PcDescr, pc_filter)) {
+
+ if (__afl_debug)
+ fprintf(
+ stderr,
+ "DEBUG: Selective instrumentation match: %s (PC %p Index %u)\n",
+ PcDescr, (void *)start->PC,
+ *(mod_info->start + in_module_index));
+ // No change to guard needed
+
+ } else {
+
+ // Null out the guard to disable this edge
+ *(mod_info->start + in_module_index) = 0;
+
+ }
+
+ }
+
+ if (__afl_filter_pcs && strstr(mod_info->name, __afl_filter_pcs_module)) {
+
+ u32 result_index;
+ if (locate_in_pcs(PC, &result_index)) {
+
+ if (__afl_debug)
+ fprintf(stderr,
+ "DEBUG: Selective instrumentation match: (PC %lx File "
+ "Index %u PC Index %u)\n",
+ PC, result_index, in_module_index);
+
+ } else {
+
+ // Null out the guard to disable this edge
+ *(mod_info->start + in_module_index) = 0;
+
+ }
+
+ }
start++;
in_module_index++;
@@ -1673,8 +1893,10 @@
if (__afl_debug) {
- fprintf(stderr, "DEBUG: __sanitizer_cov_pcs_init initialized %u PCs\n",
- in_module_index);
+ fprintf(stderr,
+ "DEBUG: __sanitizer_cov_pcs_init successfully mapped %s with %u "
+ "PCs\n",
+ mod_info->name, in_module_index);
}
@@ -1705,11 +1927,12 @@
if (__afl_debug) {
- fprintf(stderr,
- "Running __sanitizer_cov_trace_pc_guard_init: %p-%p (%lu edges) "
- "after_fs=%u\n",
- start, stop, (unsigned long)(stop - start),
- __afl_already_initialized_forkserver);
+ fprintf(
+ stderr,
+ "DEBUG: Running __sanitizer_cov_trace_pc_guard_init: %p-%p (%lu edges) "
+ "after_fs=%u *start=%u\n",
+ start, stop, (unsigned long)(stop - start),
+ __afl_already_initialized_forkserver, *start);
}
@@ -1741,8 +1964,8 @@
mod_info->id = last_module_info ? last_module_info->id + 1 : 0;
mod_info->name = strdup(dlinfo.dli_fname);
mod_info->base_address = (uintptr_t)dlinfo.dli_fbase;
- mod_info->start = 0;
- mod_info->stop = 0;
+ mod_info->start = NULL;
+ mod_info->stop = NULL;
mod_info->pcs_beg = NULL;
mod_info->pcs_end = NULL;
mod_info->mapped = 0;
@@ -1758,8 +1981,12 @@
}
- fprintf(stderr, "[pcmap] Module: %s Base Address: %p\n", dlinfo.dli_fname,
- dlinfo.dli_fbase);
+ if (__afl_debug) {
+
+ fprintf(stderr, "[pcmap] Module: %s Base Address: %p\n",
+ dlinfo.dli_fname, dlinfo.dli_fbase);
+
+ }
}
@@ -1807,7 +2034,8 @@
u8 ignore_dso_after_fs = !!getenv("AFL_IGNORE_PROBLEMS_COVERAGE");
if (__afl_debug && ignore_dso_after_fs) {
- fprintf(stderr, "Ignoring coverage from dynamically loaded code\n");
+ fprintf(stderr,
+ "DEBUG: Ignoring coverage from dynamically loaded code\n");
}
@@ -1861,12 +2089,17 @@
#ifdef __AFL_CODE_COVERAGE
if (mod_info) {
- mod_info->start = *orig_start;
- mod_info->stop = *(stop - 1);
+ if (!mod_info->start) {
+
+ mod_info->start = orig_start;
+ mod_info->stop = stop - 1;
+
+ }
+
if (__afl_debug) {
fprintf(stderr, "DEBUG: [pcmap] Start Index: %u Stop Index: %u\n",
- mod_info->start, mod_info->stop);
+ *(mod_info->start), *(mod_info->stop));
}
@@ -1877,7 +2110,8 @@
if (__afl_debug) {
fprintf(stderr,
- "Done __sanitizer_cov_trace_pc_guard_init: __afl_final_loc = %u\n",
+ "DEBUG: Done __sanitizer_cov_trace_pc_guard_init: __afl_final_loc "
+ "= %u\n",
__afl_final_loc);
}
@@ -1888,7 +2122,7 @@
if (__afl_debug) {
- fprintf(stderr, "Reinit shm necessary (+%u)\n",
+ fprintf(stderr, "DEBUG: Reinit shm necessary (+%u)\n",
__afl_final_loc - __afl_map_size);
}
@@ -1911,6 +2145,10 @@
// fprintf(stderr, "hook1 arg0=%02x arg1=%02x attr=%u\n",
// (u8) arg1, (u8) arg2, attr);
+ return;
+
+ /*
+
if (unlikely(!__afl_cmp_map || arg1 == arg2)) return;
uintptr_t k = (uintptr_t)__builtin_return_address(0);
@@ -1937,6 +2175,8 @@
__afl_cmp_map->log[k][hits].v0 = arg1;
__afl_cmp_map->log[k][hits].v1 = arg2;
+ */
+
}
void __cmplog_ins_hook2(uint16_t arg1, uint16_t arg2, uint8_t attr) {
@@ -2143,13 +2383,13 @@
void __sanitizer_cov_trace_cmp1(uint8_t arg1, uint8_t arg2) {
- __cmplog_ins_hook1(arg1, arg2, 0);
+ //__cmplog_ins_hook1(arg1, arg2, 0);
}
void __sanitizer_cov_trace_const_cmp1(uint8_t arg1, uint8_t arg2) {
- __cmplog_ins_hook1(arg1, arg2, 0);
+ //__cmplog_ins_hook1(arg1, arg2, 0);
}
@@ -2258,11 +2498,13 @@
if (unlikely(!ptr || __asan_region_is_poisoned(ptr, len))) { return 0; }
-#ifndef __HAIKU__
- long r = syscall(SYS_write, __afl_dummy_fd[1], ptr, len);
-#else
+#ifdef __HAIKU__
long r = _kern_write(__afl_dummy_fd[1], -1, ptr, len);
-#endif // HAIKU
+#elif defined(__OpenBSD__)
+ long r = write(__afl_dummy_fd[1], ptr, len);
+#else
+ long r = syscall(SYS_write, __afl_dummy_fd[1], ptr, len);
+#endif // HAIKU, OPENBSD
if (r <= 0 || r > len) return 0;
@@ -2300,7 +2542,7 @@
int len1 = strnlen(ptr1, len0);
if (len1 < 31) len1 = area_is_valid(ptr1, len1 + 1);
int len2 = strnlen(ptr2, len0);
- if (len2 < 31) len2 = area_is_valid(ptr1, len2 + 1);
+ if (len2 < 31) len2 = area_is_valid(ptr2, len2 + 1);
int l = MAX(len1, len2);
if (l < 2) return;
@@ -2663,5 +2905,52 @@
}
+// Marker: ADD_TO_INJECTIONS
+
+void __afl_injection_sql(u8 *buf) {
+
+ if (likely(buf)) {
+
+ if (unlikely(strstr((char *)buf, "'\"\"'"))) {
+
+ fprintf(stderr, "ALERT: Detected SQL injection in query: %s\n", buf);
+ abort();
+
+ }
+
+ }
+
+}
+
+void __afl_injection_ldap(u8 *buf) {
+
+ if (likely(buf)) {
+
+ if (unlikely(strstr((char *)buf, "*)(1=*))(|"))) {
+
+ fprintf(stderr, "ALERT: Detected LDAP injection in query: %s\n", buf);
+ abort();
+
+ }
+
+ }
+
+}
+
+void __afl_injection_xss(u8 *buf) {
+
+ if (likely(buf)) {
+
+ if (unlikely(strstr((char *)buf, "1\"><\""))) {
+
+ fprintf(stderr, "ALERT: Detected XSS injection in content: %s\n", buf);
+ abort();
+
+ }
+
+ }
+
+}
+
#undef write_error
diff --git a/instrumentation/afl-gcc-cmplog-pass.so.cc b/instrumentation/afl-gcc-cmplog-pass.so.cc
index b4e6fda..774dd5f 100644
--- a/instrumentation/afl-gcc-cmplog-pass.so.cc
+++ b/instrumentation/afl-gcc-cmplog-pass.so.cc
@@ -3,7 +3,7 @@
Copyright 2014-2019 Free Software Foundation, Inc
Copyright 2015, 2016 Google Inc. All rights reserved.
Copyright 2019-2020 AFLplusplus Project. All rights reserved.
- Copyright 2019-2023 AdaCore
+ Copyright 2019-2024 AdaCore
Written by Alexandre Oliva <oliva@adacore.com>, based on the AFL++
LLVM CmpLog pass by Andrea Fioraldi <andreafioraldi@gmail.com>, and
diff --git a/instrumentation/afl-gcc-cmptrs-pass.so.cc b/instrumentation/afl-gcc-cmptrs-pass.so.cc
index dbb408b..929a9d7 100644
--- a/instrumentation/afl-gcc-cmptrs-pass.so.cc
+++ b/instrumentation/afl-gcc-cmptrs-pass.so.cc
@@ -3,7 +3,7 @@
Copyright 2014-2019 Free Software Foundation, Inc
Copyright 2015, 2016 Google Inc. All rights reserved.
Copyright 2019-2020 AFLplusplus Project. All rights reserved.
- Copyright 2019-2023 AdaCore
+ Copyright 2019-2024 AdaCore
Written by Alexandre Oliva <oliva@adacore.com>, based on the AFL++
LLVM CmpLog Routines pass by Andrea Fioraldi
@@ -157,6 +157,9 @@
/* We expect it to be a record type. */
if (TREE_CODE(t) != RECORD_TYPE) return false;
+ /* The type has an identifier. */
+ if (!TYPE_IDENTIFIER(t)) return false;
+
/* The type of the template is basic_string. */
if (strcmp(IDENTIFIER_POINTER(TYPE_IDENTIFIER(t)), "basic_string") != 0)
return false;
@@ -201,7 +204,7 @@
/* Now go back to the first data member. Its type should be a
record type named _Alloc_hider. */
c = TREE_TYPE(c);
- if (!c || TREE_CODE(c) != RECORD_TYPE ||
+ if (!c || TREE_CODE(c) != RECORD_TYPE || !TYPE_IDENTIFIER(t) ||
strcmp(IDENTIFIER_POINTER(TYPE_IDENTIFIER(c)), "_Alloc_hider") != 0)
return false;
diff --git a/instrumentation/afl-gcc-common.h b/instrumentation/afl-gcc-common.h
index 1d5eb46..80ded57 100644
--- a/instrumentation/afl-gcc-common.h
+++ b/instrumentation/afl-gcc-common.h
@@ -2,7 +2,7 @@
Copyright 2014-2019 Free Software Foundation, Inc
Copyright 2015, 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AdaCore
+ Copyright 2019-2024 AdaCore
Written by Alexandre Oliva <oliva@adacore.com>, based on the AFL++
GCC plugin.
diff --git a/instrumentation/afl-llvm-common.cc b/instrumentation/afl-llvm-common.cc
index 7f17b02..8e9e780 100644
--- a/instrumentation/afl-llvm-common.cc
+++ b/instrumentation/afl-llvm-common.cc
@@ -97,11 +97,15 @@
static constexpr const char *ignoreSubstringList[] = {
- "__asan", "__msan", "__ubsan", "__lsan", "__san", "__sanitize",
- "__cxx", "DebugCounter", "DwarfDebug", "DebugLoc"
+ "__asan", "__msan", "__ubsan", "__lsan", "__san",
+ "__sanitize", "DebugCounter", "DwarfDebug", "DebugLoc"
};
+ // This check is very sensitive, we must be sure to not include patterns
+ // that are part of user-written C++ functions like the ones including
+ // std::string as parameter (see #1927) as the mangled type is inserted in the
+ // mangled name of the user-written function
for (auto const &ignoreListFunc : ignoreSubstringList) {
// hexcoder: F->getName().contains() not avaiilable in llvm 3.8.0
@@ -197,7 +201,7 @@
if (debug)
DEBUGF("loaded allowlist with %zu file and %zu function entries\n",
- allowListFiles.size(), allowListFunctions.size());
+ allowListFiles.size() / 4, allowListFunctions.size() / 4);
}
@@ -272,7 +276,7 @@
if (debug)
DEBUGF("loaded denylist with %zu file and %zu function entries\n",
- denyListFiles.size(), denyListFunctions.size());
+ denyListFiles.size() / 4, denyListFunctions.size() / 4);
}
diff --git a/instrumentation/afl-llvm-dict2file.so.cc b/instrumentation/afl-llvm-dict2file.so.cc
index 8ee1301..ac497b5 100644
--- a/instrumentation/afl-llvm-dict2file.so.cc
+++ b/instrumentation/afl-llvm-dict2file.so.cc
@@ -4,7 +4,7 @@
Written by Marc Heuse <mh@mh-sec.de>
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -206,7 +206,18 @@
ptr = getenv("AFL_LLVM_DICT2FILE");
- if (!ptr || *ptr != '/')
+ if (!ptr) {
+
+#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
+ auto PA = PreservedAnalyses::all();
+ return PA;
+#else
+ return true;
+#endif
+
+ }
+
+ if (*ptr != '/')
FATAL("AFL_LLVM_DICT2FILE is not set to an absolute path: %s", ptr);
of.open(ptr, std::ofstream::out | std::ofstream::app);
@@ -422,32 +433,35 @@
isStrstr &=
FT->getNumParams() == 2 &&
FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isStrcmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isStrcasecmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isMemcmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy() &&
FT->getParamType(2)->isIntegerTy();
- isStrncmp &= FT->getNumParams() == 3 &&
- FT->getReturnType()->isIntegerTy(32) &&
- FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) ==
- IntegerType::getInt8PtrTy(M.getContext()) &&
- FT->getParamType(2)->isIntegerTy();
- isStrncasecmp &= FT->getNumParams() == 3 &&
- FT->getReturnType()->isIntegerTy(32) &&
- FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) ==
- IntegerType::getInt8PtrTy(M.getContext()) &&
- FT->getParamType(2)->isIntegerTy();
+ isStrncmp &=
+ FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
+ FT->getParamType(0) == FT->getParamType(1) &&
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
+ FT->getParamType(2)->isIntegerTy();
+ isStrncasecmp &=
+ FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
+ FT->getParamType(0) == FT->getParamType(1) &&
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
+ FT->getParamType(2)->isIntegerTy();
isStdString &= FT->getNumParams() >= 2 &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy();
diff --git a/instrumentation/afl-llvm-lto-instrumentlist.so.cc b/instrumentation/afl-llvm-lto-instrumentlist.so.cc
index 61f97d7..e0899cd 100644
--- a/instrumentation/afl-llvm-lto-instrumentlist.so.cc
+++ b/instrumentation/afl-llvm-lto-instrumentlist.so.cc
@@ -9,7 +9,7 @@
from afl-as.c are Michal's fault.
Copyright 2015, 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/instrumentation/afl-llvm-pass.so.cc b/instrumentation/afl-llvm-pass.so.cc
index c59324f..62f5023 100644
--- a/instrumentation/afl-llvm-pass.so.cc
+++ b/instrumentation/afl-llvm-pass.so.cc
@@ -12,7 +12,7 @@
NGRAM previous location coverage comes from Adrian Herrera.
Copyright 2015, 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -552,7 +552,7 @@
#endif
{
- // load the context ID of the previous function and write to to a
+ // load the context ID of the previous function and write to a
// local variable on the stack
LoadInst *PrevCtxLoad = IRB.CreateLoad(
#if LLVM_VERSION_MAJOR >= 14
@@ -634,7 +634,7 @@
/* There is a problem with Ubuntu 18.04 and llvm 6.0 (see issue #63).
The inline function successors() is not inlined and also not found at runtime
- :-( As I am unable to detect Ubuntu18.04 heree, the next best thing is to
+ :-( As I am unable to detect Ubuntu18.04 here, the next best thing is to
disable this optional optimization for LLVM 6.0.0 and Linux */
#if !(LLVM_VERSION_MAJOR == 6 && LLVM_VERSION_MINOR == 0) || !defined __linux__
// only instrument if this basic block is the destination of a previous
diff --git a/instrumentation/cmplog-instructions-pass.cc b/instrumentation/cmplog-instructions-pass.cc
index bca1f92..dc60221 100644
--- a/instrumentation/cmplog-instructions-pass.cc
+++ b/instrumentation/cmplog-instructions-pass.cc
@@ -5,7 +5,7 @@
Written by Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2015, 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -90,7 +90,7 @@
#if LLVM_MAJOR >= 11 /* use new pass manager */
PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
#else
- bool runOnModule(Module &M) override;
+ bool runOnModule(Module &M) override;
#if LLVM_VERSION_MAJOR >= 4
StringRef getPassName() const override {
@@ -165,23 +165,25 @@
IntegerType *Int64Ty = IntegerType::getInt64Ty(C);
IntegerType *Int128Ty = IntegerType::getInt128Ty(C);
-#if LLVM_VERSION_MAJOR >= 9
- FunctionCallee
-#else
- Constant *
-#endif
- c1 = M.getOrInsertFunction("__cmplog_ins_hook1", VoidTy, Int8Ty, Int8Ty,
- Int8Ty
-#if LLVM_VERSION_MAJOR < 5
- ,
- NULL
-#endif
- );
-#if LLVM_VERSION_MAJOR >= 9
- FunctionCallee cmplogHookIns1 = c1;
-#else
- Function *cmplogHookIns1 = cast<Function>(c1);
-#endif
+ /*
+ #if LLVM_VERSION_MAJOR >= 9
+ FunctionCallee
+ #else
+ Constant *
+ #endif
+ c1 = M.getOrInsertFunction("__cmplog_ins_hook1", VoidTy, Int8Ty, Int8Ty,
+ Int8Ty
+ #if LLVM_VERSION_MAJOR < 5
+ ,
+ NULL
+ #endif
+ );
+ #if LLVM_VERSION_MAJOR >= 9
+ FunctionCallee cmplogHookIns1 = c1;
+ #else
+ Function *cmplogHookIns1 = cast<Function>(c1);
+ #endif
+ */
#if LLVM_VERSION_MAJOR >= 9
FunctionCallee
@@ -619,7 +621,7 @@
switch (cast_size) {
case 8:
- IRB.CreateCall(cmplogHookIns1, args);
+ // IRB.CreateCall(cmplogHookIns1, args);
break;
case 16:
IRB.CreateCall(cmplogHookIns2, args);
diff --git a/instrumentation/cmplog-routines-pass.cc b/instrumentation/cmplog-routines-pass.cc
index c3fbed8..78317d5 100644
--- a/instrumentation/cmplog-routines-pass.cc
+++ b/instrumentation/cmplog-routines-pass.cc
@@ -5,7 +5,7 @@
Written by Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2015, 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -85,7 +85,7 @@
#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
#else
- bool runOnModule(Module &M) override;
+ bool runOnModule(Module &M) override;
#if LLVM_VERSION_MAJOR >= 4
StringRef getPassName() const override {
@@ -385,7 +385,8 @@
isStrcmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
bool isStrncmp = (!FuncName.compare("strncmp") ||
!FuncName.compare("xmlStrncmp") ||
@@ -398,12 +399,12 @@
!FuncName.compare("g_ascii_strncasecmp") ||
!FuncName.compare("Curl_strncasecompare") ||
!FuncName.compare("g_strncasecmp"));
- isStrncmp &= FT->getNumParams() == 3 &&
- FT->getReturnType()->isIntegerTy(32) &&
- FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) ==
- IntegerType::getInt8PtrTy(M.getContext()) &&
- FT->getParamType(2)->isIntegerTy();
+ isStrncmp &=
+ FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
+ FT->getParamType(0) == FT->getParamType(1) &&
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
+ FT->getParamType(2)->isIntegerTy();
bool isGccStdStringStdString =
Callee->getName().find("__is_charIT_EE7__value") !=
diff --git a/instrumentation/cmplog-switches-pass.cc b/instrumentation/cmplog-switches-pass.cc
index 38de669..3e05c13 100644
--- a/instrumentation/cmplog-switches-pass.cc
+++ b/instrumentation/cmplog-switches-pass.cc
@@ -5,7 +5,7 @@
Written by Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2015, 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -85,7 +85,7 @@
#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
#else
- bool runOnModule(Module &M) override;
+ bool runOnModule(Module &M) override;
#if LLVM_VERSION_MAJOR < 4
const char *getPassName() const override {
diff --git a/instrumentation/compare-transform-pass.so.cc b/instrumentation/compare-transform-pass.so.cc
index 5dd705c..b0d6355 100644
--- a/instrumentation/compare-transform-pass.so.cc
+++ b/instrumentation/compare-transform-pass.so.cc
@@ -169,6 +169,7 @@
DenseMap<Value *, std::string *> valueMap;
std::vector<CallInst *> calls;
LLVMContext &C = M.getContext();
+ IntegerType *Int1Ty = IntegerType::getInt1Ty(C);
IntegerType *Int8Ty = IntegerType::getInt8Ty(C);
IntegerType *Int32Ty = IntegerType::getInt32Ty(C);
IntegerType *Int64Ty = IntegerType::getInt64Ty(C);
@@ -227,9 +228,9 @@
isStrcmp &=
(!FuncName.compare("strcmp") || !FuncName.compare("xmlStrcmp") ||
!FuncName.compare("xmlStrEqual") ||
- !FuncName.compare("g_strcmp0") ||
!FuncName.compare("curl_strequal") ||
- !FuncName.compare("strcsequal"));
+ !FuncName.compare("strcsequal") ||
+ !FuncName.compare("g_strcmp0"));
isMemcmp &=
(!FuncName.compare("memcmp") || !FuncName.compare("bcmp") ||
!FuncName.compare("CRYPTO_memcmp") ||
@@ -237,8 +238,8 @@
!FuncName.compare("memcmp_const_time") ||
!FuncName.compare("memcmpct"));
isStrncmp &= (!FuncName.compare("strncmp") ||
- !FuncName.compare("xmlStrncmp") ||
- !FuncName.compare("curl_strnequal"));
+ !FuncName.compare("curl_strnequal") ||
+ !FuncName.compare("xmlStrncmp"));
isStrcasecmp &= (!FuncName.compare("strcasecmp") ||
!FuncName.compare("stricmp") ||
!FuncName.compare("ap_cstr_casecmp") ||
@@ -270,28 +271,30 @@
isStrcmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isStrcasecmp &=
FT->getNumParams() == 2 && FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) == IntegerType::getInt8PtrTy(M.getContext());
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0);
isMemcmp &= FT->getNumParams() == 3 &&
FT->getReturnType()->isIntegerTy(32) &&
FT->getParamType(0)->isPointerTy() &&
FT->getParamType(1)->isPointerTy() &&
FT->getParamType(2)->isIntegerTy();
- isStrncmp &= FT->getNumParams() == 3 &&
- FT->getReturnType()->isIntegerTy(32) &&
- FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) ==
- IntegerType::getInt8PtrTy(M.getContext()) &&
- FT->getParamType(2)->isIntegerTy();
- isStrncasecmp &= FT->getNumParams() == 3 &&
- FT->getReturnType()->isIntegerTy(32) &&
- FT->getParamType(0) == FT->getParamType(1) &&
- FT->getParamType(0) ==
- IntegerType::getInt8PtrTy(M.getContext()) &&
- FT->getParamType(2)->isIntegerTy();
+ isStrncmp &=
+ FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
+ FT->getParamType(0) == FT->getParamType(1) &&
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
+ FT->getParamType(2)->isIntegerTy();
+ isStrncasecmp &=
+ FT->getNumParams() == 3 && FT->getReturnType()->isIntegerTy(32) &&
+ FT->getParamType(0) == FT->getParamType(1) &&
+ FT->getParamType(0) ==
+ IntegerType::getInt8Ty(M.getContext())->getPointerTo(0) &&
+ FT->getParamType(2)->isIntegerTy();
if (!isStrcmp && !isMemcmp && !isStrncmp && !isStrcasecmp &&
!isStrncasecmp && !isIntMemcpy)
@@ -457,6 +460,7 @@
bool isSizedcmp = false;
bool isCaseInsensitive = false;
bool needs_null = false;
+ bool success_is_one = false;
Function *Callee = callInst->getCalledFunction();
if (Callee) {
@@ -503,6 +507,12 @@
!Callee->getName().compare("g_strncasecmp"))
isCaseInsensitive = true;
+ if (!Callee->getName().compare("xmlStrEqual") ||
+ !Callee->getName().compare("curl_strequal") ||
+ !Callee->getName().compare("strcsequal") ||
+ !Callee->getName().compare("curl_strnequal"))
+ success_is_one = true;
+
}
if (!isSizedcmp) needs_null = true;
@@ -667,6 +677,14 @@
else
isub = cur_cmp_IRB.CreateSub(load, ConstantInt::get(Int8Ty, c));
+ if (success_is_one && i == unrollLen - 1) {
+
+ Value *isubsub = cur_cmp_IRB.CreateTrunc(isub, Int1Ty);
+ isub = cur_cmp_IRB.CreateSelect(isubsub, ConstantInt::get(Int8Ty, 0),
+ ConstantInt::get(Int8Ty, 1));
+
+ }
+
Value *sext = cur_cmp_IRB.CreateSExt(isub, Int32Ty);
PN->addIncoming(sext, cur_cmp_bb);
diff --git a/instrumentation/injection-pass.cc b/instrumentation/injection-pass.cc
new file mode 100644
index 0000000..2280208
--- /dev/null
+++ b/instrumentation/injection-pass.cc
@@ -0,0 +1,366 @@
+/*
+ american fuzzy lop++ - LLVM Injection instrumentation
+ --------------------------------------------------
+
+ Written by Marc Heuse <mh@mh-sec.de>
+
+ Copyright 2015, 2016 Google Inc. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at:
+
+ https://www.apache.org/licenses/LICENSE-2.0
+
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <list>
+#include <string>
+#include <fstream>
+#include <sys/time.h>
+#include "llvm/Config/llvm-config.h"
+
+#include "llvm/ADT/Statistic.h"
+#include "llvm/IR/IRBuilder.h"
+#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
+ #include "llvm/Passes/PassPlugin.h"
+ #include "llvm/Passes/PassBuilder.h"
+ #include "llvm/IR/PassManager.h"
+#else
+ #include "llvm/IR/LegacyPassManager.h"
+ #include "llvm/Transforms/IPO/PassManagerBuilder.h"
+#endif
+#include "llvm/IR/Module.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
+#if LLVM_VERSION_MAJOR < 17
+ #include "llvm/Transforms/IPO/PassManagerBuilder.h"
+#endif
+#include "llvm/Transforms/Utils/BasicBlockUtils.h"
+#include "llvm/Pass.h"
+#include "llvm/Analysis/ValueTracking.h"
+
+#include "llvm/IR/IRBuilder.h"
+#if LLVM_VERSION_MAJOR >= 4 || \
+ (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR > 4)
+ #include "llvm/IR/Verifier.h"
+ #include "llvm/IR/DebugInfo.h"
+#else
+ #include "llvm/Analysis/Verifier.h"
+ #include "llvm/DebugInfo.h"
+ #define nullptr 0
+#endif
+
+#include <set>
+#include "afl-llvm-common.h"
+
+using namespace llvm;
+
+namespace {
+
+#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
+class InjectionRoutines : public PassInfoMixin<InjectionRoutines> {
+
+ public:
+ InjectionRoutines() {
+
+#else
+class InjectionRoutines : public ModulePass {
+
+ public:
+ static char ID;
+ InjectionRoutines() : ModulePass(ID) {
+
+#endif
+
+ initInstrumentList();
+
+ }
+
+#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
+ PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
+#else
+ bool runOnModule(Module &M) override;
+
+ #if LLVM_VERSION_MAJOR >= 4
+ StringRef getPassName() const override {
+
+ #else
+ const char *getPassName() const override {
+
+ #endif
+ return "Injection routines";
+
+ }
+
+#endif
+
+ private:
+ bool hookRtns(Module &M);
+
+ bool doSQL = false;
+ bool doLDAP = false;
+ bool doXSS = false;
+
+};
+
+} // namespace
+
+#if LLVM_MAJOR >= 11
+extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
+llvmGetPassPluginInfo() {
+
+ return {LLVM_PLUGIN_API_VERSION, "Injectionroutines", "v0.1",
+ /* lambda to insert our pass into the pass pipeline. */
+ [](PassBuilder &PB) {
+
+ #if LLVM_VERSION_MAJOR <= 13
+ using OptimizationLevel = typename PassBuilder::OptimizationLevel;
+ #endif
+ PB.registerOptimizerLastEPCallback(
+ [](ModulePassManager &MPM, OptimizationLevel OL) {
+
+ MPM.addPass(InjectionRoutines());
+
+ });
+
+ }};
+
+}
+
+#else
+char InjectionRoutines::ID = 0;
+#endif
+
+bool InjectionRoutines::hookRtns(Module &M) {
+
+ std::vector<CallInst *> calls, llvmStdStd, llvmStdC, gccStdStd, gccStdC,
+ Memcmp, Strcmp, Strncmp;
+ LLVMContext &C = M.getContext();
+
+ Type *VoidTy = Type::getVoidTy(C);
+ IntegerType *Int8Ty = IntegerType::getInt8Ty(C);
+ PointerType *i8PtrTy = PointerType::get(Int8Ty, 0);
+
+#if LLVM_VERSION_MAJOR >= 9
+ FunctionCallee
+#else
+ Constant *
+#endif
+ c1 = M.getOrInsertFunction("__afl_injection_sql", VoidTy, i8PtrTy
+#if LLVM_VERSION_MAJOR < 5
+ ,
+ NULL
+#endif
+ );
+#if LLVM_VERSION_MAJOR >= 9
+ FunctionCallee sqlfunc = c1;
+#else
+ Function *sqlfunc = cast<Function>(c1);
+#endif
+
+#if LLVM_VERSION_MAJOR >= 9
+ FunctionCallee
+#else
+ Constant *
+#endif
+ c2 = M.getOrInsertFunction("__afl_injection_ldap", VoidTy, i8PtrTy
+#if LLVM_VERSION_MAJOR < 5
+ ,
+ NULL
+#endif
+ );
+#if LLVM_VERSION_MAJOR >= 9
+ FunctionCallee ldapfunc = c2;
+#else
+ Function *ldapfunc = cast<Function>(c2);
+#endif
+
+#if LLVM_VERSION_MAJOR >= 9
+ FunctionCallee
+#else
+ Constant *
+#endif
+ c3 = M.getOrInsertFunction("__afl_injection_xss", VoidTy, i8PtrTy
+#if LLVM_VERSION_MAJOR < 5
+ ,
+ NULL
+#endif
+ );
+#if LLVM_VERSION_MAJOR >= 9
+ FunctionCallee xssfunc = c3;
+#else
+ Function *xssfunc = cast<Function>(c3);
+#endif
+
+#if LLVM_VERSION_MAJOR >= 9
+ FunctionCallee FuncPtr;
+#else
+ Function *FuncPtr;
+#endif
+
+ /* iterate over all functions, bbs and instruction and add suitable calls */
+ for (auto &F : M) {
+
+ if (!isInInstrumentList(&F, MNAME)) continue;
+
+ for (auto &BB : F) {
+
+ for (auto &IN : BB) {
+
+ CallInst *callInst = nullptr;
+
+ if ((callInst = dyn_cast<CallInst>(&IN))) {
+
+ Function *Callee = callInst->getCalledFunction();
+ if (!Callee) continue;
+ if (callInst->getCallingConv() != llvm::CallingConv::C) continue;
+
+ std::string FuncName = Callee->getName().str();
+ FuncPtr = nullptr;
+ size_t param = 0;
+
+ // Marker: ADD_TO_INJECTIONS
+ // If you just need to add another function to test for SQL etc.
+ // then add them here.
+ // To add a new class or to work on e.g. std::string/Rust strings/...
+ // you will need to add a function to afl-compiler-rt.c.o and
+ // and upwards in this file add a pointer to that function to use
+ // here.
+
+ if (doSQL &&
+ (FuncName.compare("sqlite3_exec") == 0 ||
+ FuncName.compare("PQexec") == 0 || FuncName.compare("") == 0 ||
+ FuncName.compare("PQexecParams") == 0 ||
+ FuncName.compare("mysql_query") == 0)) {
+
+ if (!be_quiet) {
+
+ errs() << "Injection SQL hook: " << FuncName << "\n";
+
+ }
+
+ FuncPtr = sqlfunc;
+ param = 1;
+
+ }
+
+ if (doLDAP && (FuncName.compare("ldap_search_ext") == 0 ||
+ FuncName.compare("ldap_search_ext_s") == 0)) {
+
+ if (!be_quiet) {
+
+ errs() << "Injection LDAP hook: " << FuncName << "\n";
+
+ }
+
+ FuncPtr = ldapfunc;
+ param = 1;
+
+ }
+
+ if (doXSS && (FuncName.compare("htmlReadMemory") == 0)) {
+
+ if (!be_quiet) {
+
+ errs() << "Injection XSS hook: " << FuncName << "\n";
+
+ }
+
+ FuncPtr = xssfunc;
+ param = 1;
+
+ }
+
+ if (FuncPtr) {
+
+ IRBuilder<> IRB(callInst->getParent());
+ IRB.SetInsertPoint(callInst);
+
+ Value *parameter = callInst->getArgOperand(param);
+
+ std::vector<Value *> args;
+ Value *casted = IRB.CreatePointerCast(parameter, i8PtrTy);
+ args.push_back(casted);
+ IRB.CreateCall(FuncPtr, args);
+
+ }
+
+ }
+
+ }
+
+ }
+
+ }
+
+ return true;
+
+}
+
+#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
+PreservedAnalyses InjectionRoutines::run(Module &M,
+ ModuleAnalysisManager &MAM) {
+
+#else
+bool InjectionRoutines::runOnModule(Module &M) {
+
+#endif
+
+ if (getenv("AFL_QUIET") == NULL)
+ printf("Running injection-pass by Marc Heuse (mh@mh-sec.de)\n");
+ else
+ be_quiet = 1;
+ if (getenv("AFL_LLVM_INJECTIONS_ALL")) {
+
+ doSQL = true;
+ doLDAP = true;
+ doXSS = true;
+
+ }
+
+ if (getenv("AFL_LLVM_INJECTIONS_SQL")) { doSQL = true; }
+ if (getenv("AFL_LLVM_INJECTIONS_LDAP")) { doLDAP = true; }
+ if (getenv("AFL_LLVM_INJECTIONS_XSS")) { doXSS = true; }
+
+ hookRtns(M);
+#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
+ auto PA = PreservedAnalyses::all();
+#endif
+ verifyModule(M);
+
+#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
+ return PA;
+#else
+ return true;
+#endif
+
+}
+
+#if LLVM_VERSION_MAJOR < 11 /* use old pass manager */
+static void registerInjectionRoutinesPass(const PassManagerBuilder &,
+ legacy::PassManagerBase &PM) {
+
+ auto p = new InjectionRoutines();
+ PM.add(p);
+
+}
+
+static RegisterStandardPasses RegisterInjectionRoutinesPass(
+ PassManagerBuilder::EP_OptimizerLast, registerInjectionRoutinesPass);
+
+static RegisterStandardPasses RegisterInjectionRoutinesPass0(
+ PassManagerBuilder::EP_EnabledOnOptLevel0, registerInjectionRoutinesPass);
+
+ #if LLVM_VERSION_MAJOR >= 11
+static RegisterStandardPasses RegisterInjectionRoutinesPassLTO(
+ PassManagerBuilder::EP_FullLinkTimeOptimizationLast,
+ registerInjectionRoutinesPass);
+ #endif
+#endif
+
diff --git a/instrumentation/split-compares-pass.so.cc b/instrumentation/split-compares-pass.so.cc
index aec6758..144025f 100644
--- a/instrumentation/split-compares-pass.so.cc
+++ b/instrumentation/split-compares-pass.so.cc
@@ -463,8 +463,12 @@
#else
ReplaceInstWithInst(IcmpInst->getParent()->getInstList(), ii, PN);
#endif
+ if (new_pred == CmpInst::ICMP_SGT || new_pred == CmpInst::ICMP_SLT) {
- worklist.push_back(icmp_np);
+ simplifySignedCompare(icmp_np, M, worklist);
+
+ }
+
worklist.push_back(icmp_eq);
return true;
@@ -740,17 +744,24 @@
CmpInst *icmp_inv_cmp = nullptr;
BasicBlock *inv_cmp_bb =
BasicBlock::Create(C, "inv_cmp", end_bb->getParent(), end_bb);
- if (pred == CmpInst::ICMP_UGT || pred == CmpInst::ICMP_SGT ||
- pred == CmpInst::ICMP_UGE || pred == CmpInst::ICMP_SGE) {
+ if (pred == CmpInst::ICMP_UGT) {
icmp_inv_cmp = CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_ULT,
op0_high, op1_high);
- } else {
+ } else if (pred == CmpInst::ICMP_ULT) {
icmp_inv_cmp = CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_UGT,
op0_high, op1_high);
+ } else {
+
+ // Never gonna appen
+ if (!be_quiet)
+ fprintf(stderr,
+ "Error: split-compare: Equals or signed not removed: %d\n",
+ pred);
+
}
#if LLVM_MAJOR >= 16
@@ -1573,7 +1584,7 @@
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_UGT, t_f0, t_f1);
#if LLVM_MAJOR >= 16
icmp_fraction_result->insertInto(negative_bb, negative_bb->end());
- icmp_fraction_result2->insertInto(positive_bb, negative_bb->end());
+ icmp_fraction_result2->insertInto(positive_bb, positive_bb->end());
#else
negative_bb->getInstList().push_back(icmp_fraction_result);
positive_bb->getInstList().push_back(icmp_fraction_result2);
@@ -1587,7 +1598,7 @@
CmpInst::Create(Instruction::ICmp, CmpInst::ICMP_ULT, t_f0, t_f1);
#if LLVM_MAJOR >= 16
icmp_fraction_result->insertInto(negative_bb, negative_bb->end());
- icmp_fraction_result2->insertInto(positive_bb, negative_bb->end());
+ icmp_fraction_result2->insertInto(positive_bb, positive_bb->end());
#else
negative_bb->getInstList().push_back(icmp_fraction_result);
positive_bb->getInstList().push_back(icmp_fraction_result2);
@@ -1696,12 +1707,6 @@
#endif
- char *bitw_env = getenv("AFL_LLVM_LAF_SPLIT_COMPARES_BITW");
- if (!bitw_env) bitw_env = getenv("LAF_SPLIT_COMPARES_BITW");
- if (bitw_env) { target_bitwidth = atoi(bitw_env); }
-
- enableFPSplit = getenv("AFL_LLVM_LAF_SPLIT_FLOATS") != NULL;
-
if ((isatty(2) && getenv("AFL_QUIET") == NULL) ||
getenv("AFL_DEBUG") != NULL) {
@@ -1717,6 +1722,27 @@
}
+ char *bitw_env = getenv("AFL_LLVM_LAF_SPLIT_COMPARES_BITW");
+ if (!bitw_env) bitw_env = getenv("LAF_SPLIT_COMPARES_BITW");
+ if (bitw_env) { target_bitwidth = atoi(bitw_env); }
+
+ if (getenv("AFL_LLVM_LAF_SPLIT_FLOATS")) { enableFPSplit = true; }
+
+ bool split_comp = false;
+
+ if (getenv("AFL_LLVM_LAF_SPLIT_COMPARES")) {
+
+#if LLVM_MAJOR == 17
+ if (!be_quiet)
+ fprintf(stderr,
+ "WARNING: AFL++ splitting integer comparisons is disabled in "
+ "LLVM 17 due bugs, switch to 16 or 18!\n");
+#else
+ split_comp = true;
+#endif
+
+ }
+
#if LLVM_MAJOR >= 11
auto PA = PreservedAnalyses::all();
#endif
@@ -1729,42 +1755,46 @@
if (!be_quiet && !debug) {
errs() << "Split-floatingpoint-compare-pass: " << count
- << " FP comparisons splitted\n";
+ << " FP comparisons split\n";
}
}
- std::vector<CmpInst *> worklist;
- /* iterate over all functions, bbs and instruction search for all integer
- * compare instructions. Save them into the worklist for later. */
- for (auto &F : M) {
+ if (split_comp) {
- if (!isInInstrumentList(&F, MNAME)) continue;
+ std::vector<CmpInst *> worklist;
+ /* iterate over all functions, bbs and instruction search for all integer
+ * compare instructions. Save them into the worklist for later. */
+ for (auto &F : M) {
- for (auto &BB : F) {
+ if (!isInInstrumentList(&F, MNAME)) continue;
- for (auto &IN : BB) {
+ for (auto &BB : F) {
- if (auto CI = dyn_cast<CmpInst>(&IN)) {
+ for (auto &IN : BB) {
- auto op0 = CI->getOperand(0);
- auto op1 = CI->getOperand(1);
- if (!op0 || !op1) {
+ if (auto CI = dyn_cast<CmpInst>(&IN)) {
+
+ auto op0 = CI->getOperand(0);
+ auto op1 = CI->getOperand(1);
+ if (!op0 || !op1) {
#if LLVM_MAJOR >= 11
- return PA;
+ return PA;
#else
- return false;
+ return false;
#endif
- }
+ }
- auto iTy1 = dyn_cast<IntegerType>(op0->getType());
- if (iTy1 && isa<IntegerType>(op1->getType())) {
+ auto iTy1 = dyn_cast<IntegerType>(op0->getType());
+ if (iTy1 && isa<IntegerType>(op1->getType())) {
- unsigned bitw = iTy1->getBitWidth();
- if (isSupportedBitWidth(bitw)) { worklist.push_back(CI); }
+ unsigned bitw = iTy1->getBitWidth();
+ if (isSupportedBitWidth(bitw)) { worklist.push_back(CI); }
+
+ }
}
@@ -1774,13 +1804,13 @@
}
- }
+ // now that we have a list of all integer comparisons we can start replacing
+ // them with the splitted alternatives.
+ for (auto CI : worklist) {
- // now that we have a list of all integer comparisons we can start replacing
- // them with the splitted alternatives.
- for (auto CI : worklist) {
+ simplifyAndSplit(CI, M);
- simplifyAndSplit(CI, M);
+ }
}
diff --git a/instrumentation/split-switches-pass.so.cc b/instrumentation/split-switches-pass.so.cc
index dcd8965..e3dfea0 100644
--- a/instrumentation/split-switches-pass.so.cc
+++ b/instrumentation/split-switches-pass.so.cc
@@ -84,7 +84,7 @@
#if LLVM_VERSION_MAJOR >= 11 /* use new pass manager */
PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM);
#else
- bool runOnModule(Module &M) override;
+ bool runOnModule(Module &M) override;
#if LLVM_VERSION_MAJOR >= 4
StringRef getPassName() const override {
diff --git a/src/afl-analyze.c b/src/afl-analyze.c
index 5b12274..95f32fe 100644
--- a/src/afl-analyze.c
+++ b/src/afl-analyze.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/src/afl-as.c b/src/afl-as.c
index 772e31b..09ba75b 100644
--- a/src/afl-as.c
+++ b/src/afl-as.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/src/afl-cc.c b/src/afl-cc.c
index 9e56828..e956427 100644
--- a/src/afl-cc.c
+++ b/src/afl-cc.c
@@ -5,7 +5,7 @@
Written by Michal Zalewski, Laszlo Szekeres and Marc Heuse
Copyright 2015, 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -47,23 +47,22 @@
#define LLVM_MINOR 0
#endif
-static u8 *obj_path; /* Path to runtime libraries */
-static u8 **cc_params; /* Parameters passed to the real CC */
-static u32 cc_par_cnt = 1; /* Param count, including argv0 */
-static u8 clang_mode; /* Invoked as afl-clang*? */
-static u8 llvm_fullpath[PATH_MAX];
-static u8 instrument_mode, instrument_opt_mode, ngram_size, ctx_k, lto_mode;
-static u8 compiler_mode, plusplus_mode, have_instr_env = 0, need_aflpplib = 0;
-static u8 have_gcc, have_llvm, have_gcc_plugin, have_lto, have_instr_list = 0;
-static u8 *lto_flag = AFL_CLANG_FLTO, *argvnull;
-static u8 debug;
-static u8 cwd[4096];
-static u8 cmplog_mode;
-u8 use_stdin; /* dummy */
-static int passthrough;
-// static u8 *march_opt = CFLAGS_OPT;
+#ifndef MAX_PARAMS_NUM
+ #define MAX_PARAMS_NUM 2048
+#endif
-enum {
+/** Global declarations -----BEGIN----- **/
+
+typedef enum {
+
+ PARAM_MISS, // not matched
+ PARAM_SCAN, // scan only
+ PARAM_KEEP, // kept as-is
+ PARAM_DROP, // ignored
+
+} param_st;
+
+typedef enum {
INSTRUMENT_DEFAULT = 0,
INSTRUMENT_CLASSIC = 1,
@@ -80,7 +79,20 @@
INSTRUMENT_OPT_CTX_K = 64,
INSTRUMENT_OPT_CODECOV = 128,
-};
+} instrument_mode_id;
+
+typedef enum {
+
+ UNSET = 0,
+ LTO = 1,
+ LLVM = 2,
+ GCC_PLUGIN = 3,
+ GCC = 4,
+ CLANG = 5
+
+} compiler_mode_id;
+
+static u8 cwd[4096];
char instrument_mode_string[18][18] = {
@@ -105,17 +117,6 @@
};
-enum {
-
- UNSET = 0,
- LTO = 1,
- LLVM = 2,
- GCC_PLUGIN = 3,
- GCC = 4,
- CLANG = 5
-
-};
-
char compiler_mode_string[7][12] = {
"AUTOSELECT", "LLVM-LTO", "LLVM", "GCC_PLUGIN",
@@ -123,6 +124,18 @@
};
+u8 *instrument_mode_2str(instrument_mode_id i) {
+
+ return instrument_mode_string[i];
+
+}
+
+u8 *compiler_mode_2str(compiler_mode_id i) {
+
+ return compiler_mode_string[i];
+
+}
+
u8 *getthecwd() {
if (getcwd(cwd, sizeof(cwd)) == NULL) {
@@ -136,26 +149,237 @@
}
-/* Try to find a specific runtime we need, returns NULL on fail. */
+typedef struct aflcc_state {
+
+ u8 **cc_params; /* Parameters passed to the real CC */
+ u32 cc_par_cnt; /* Param count, including argv0 */
+
+ u8 *argv0; /* Original argv0 (by strdup) */
+ u8 *callname; /* Executable file argv0 indicated */
+
+ u8 debug;
+
+ u8 compiler_mode, plusplus_mode, lto_mode;
+
+ u8 *lto_flag;
+
+ u8 instrument_mode, instrument_opt_mode, ngram_size, ctx_k;
+
+ u8 cmplog_mode;
+
+ u8 have_instr_env, have_gcc, have_clang, have_llvm, have_gcc_plugin, have_lto,
+ have_optimized_pcguard, have_instr_list;
+
+ u8 fortify_set, x_set, bit_mode, preprocessor_only, have_unroll, have_o,
+ have_pic, have_c, shared_linking, partial_linking, non_dash, have_fp,
+ have_flto, have_hidden, have_fortify, have_fcf, have_staticasan,
+ have_rust_asanrt, have_asan, have_msan, have_ubsan, have_lsan, have_tsan,
+ have_cfisan;
+
+ // u8 *march_opt;
+ u8 need_aflpplib;
+ int passthrough;
+
+ u8 use_stdin; /* dummy */
+ u8 *argvnull; /* dummy */
+
+} aflcc_state_t;
+
+void aflcc_state_init(aflcc_state_t *, u8 *argv0);
+
+u8 *find_object(aflcc_state_t *, u8 *obj);
+
+void find_built_deps(aflcc_state_t *);
+
+/* Insert param into the new argv, raise error if MAX_PARAMS_NUM exceeded. */
+static inline void insert_param(aflcc_state_t *aflcc, u8 *param) {
+
+ if (unlikely(aflcc->cc_par_cnt + 1 >= MAX_PARAMS_NUM))
+ FATAL("Too many command line parameters, please increase MAX_PARAMS_NUM.");
+
+ aflcc->cc_params[aflcc->cc_par_cnt++] = param;
+
+}
/*
- in find_object() we look here:
+ Insert a param which contains path to the object file. It uses find_object to
+ get the path based on the name `obj`, and then uses a sprintf like method to
+ format it with `fmt`. If `fmt` is NULL, the inserted arg is same as the path.
+ If `msg` provided, it should be an error msg raised if the path can't be
+ found. `obj` must not be NULL.
+*/
+static inline void insert_object(aflcc_state_t *aflcc, u8 *obj, u8 *fmt,
+ u8 *msg) {
- 1. if obj_path is already set we look there first
- 2. then we check the $AFL_PATH environment variable location if set
- 3. next we check argv[0] if it has path information and use it
+ u8 *_obj_path = find_object(aflcc, obj);
+ if (!_obj_path) {
+
+ if (msg)
+ FATAL("%s", msg);
+ else
+ FATAL("Unable to find '%s'", obj);
+
+ } else {
+
+ if (fmt) {
+
+ u8 *_obj_path_fmt = alloc_printf(fmt, _obj_path);
+ ck_free(_obj_path);
+ aflcc->cc_params[aflcc->cc_par_cnt++] = _obj_path_fmt;
+
+ } else {
+
+ aflcc->cc_params[aflcc->cc_par_cnt++] = _obj_path;
+
+ }
+
+ }
+
+}
+
+/* Insert params into the new argv, make clang load the pass. */
+static inline void load_llvm_pass(aflcc_state_t *aflcc, u8 *pass) {
+
+#if LLVM_MAJOR >= 11 /* use new pass manager */
+ #if LLVM_MAJOR < 16
+ insert_param(aflcc, "-fexperimental-new-pass-manager");
+ #endif
+ insert_object(aflcc, pass, "-fpass-plugin=%s", 0);
+#else
+ insert_param(aflcc, "-Xclang");
+ insert_param(aflcc, "-load");
+ insert_param(aflcc, "-Xclang");
+ insert_object(aflcc, pass, 0, 0);
+#endif
+
+}
+
+static inline void debugf_args(int argc, char **argv) {
+
+ DEBUGF("cd '%s';", getthecwd());
+ for (int i = 0; i < argc; i++)
+ SAYF(" '%s'", argv[i]);
+ SAYF("\n");
+ fflush(stdout);
+ fflush(stderr);
+
+}
+
+void compiler_mode_by_callname(aflcc_state_t *);
+void compiler_mode_by_environ(aflcc_state_t *);
+void compiler_mode_by_cmdline(aflcc_state_t *, int argc, char **argv);
+void instrument_mode_by_environ(aflcc_state_t *);
+void mode_final_checkout(aflcc_state_t *, int argc, char **argv);
+void mode_notification(aflcc_state_t *);
+
+void add_real_argv0(aflcc_state_t *);
+
+void add_defs_common(aflcc_state_t *);
+void add_defs_selective_instr(aflcc_state_t *);
+void add_defs_persistent_mode(aflcc_state_t *);
+void add_defs_fortify(aflcc_state_t *, u8);
+void add_defs_lsan_ctrl(aflcc_state_t *);
+
+param_st parse_fsanitize(aflcc_state_t *, u8 *, u8);
+void add_sanitizers(aflcc_state_t *, char **envp);
+void add_optimized_pcguard(aflcc_state_t *);
+void add_native_pcguard(aflcc_state_t *);
+
+void add_assembler(aflcc_state_t *);
+void add_gcc_plugin(aflcc_state_t *);
+
+param_st parse_misc_params(aflcc_state_t *, u8 *, u8);
+void add_misc_params(aflcc_state_t *);
+
+param_st parse_linking_params(aflcc_state_t *, u8 *, u8, u8 *skip_next,
+ char **argv);
+
+void add_lto_linker(aflcc_state_t *);
+void add_lto_passes(aflcc_state_t *);
+void add_runtime(aflcc_state_t *);
+
+/** Global declarations -----END----- **/
+
+/*
+ Init global state struct. We also extract the callname,
+ check debug options and if in C++ mode here.
+*/
+void aflcc_state_init(aflcc_state_t *aflcc, u8 *argv0) {
+
+ // Default NULL/0 is a good start
+ memset(aflcc, 0, sizeof(aflcc_state_t));
+
+ aflcc->cc_params = ck_alloc(MAX_PARAMS_NUM * sizeof(u8 *));
+ aflcc->cc_par_cnt = 1;
+
+ aflcc->lto_flag = AFL_CLANG_FLTO;
+
+ // aflcc->march_opt = CFLAGS_OPT;
+
+ /* callname & if C++ mode */
+
+ aflcc->argv0 = ck_strdup(argv0);
+
+ char *cname = NULL;
+
+ if ((cname = strrchr(aflcc->argv0, '/')) != NULL) {
+
+ cname++;
+
+ } else {
+
+ cname = aflcc->argv0;
+
+ }
+
+ aflcc->callname = cname;
+
+ if (strlen(cname) > 2 && (strncmp(cname + strlen(cname) - 2, "++", 2) == 0 ||
+ strstr(cname, "-g++") != NULL)) {
+
+ aflcc->plusplus_mode = 1;
+
+ }
+
+ /* debug */
+
+ if (getenv("AFL_DEBUG")) {
+
+ aflcc->debug = 1;
+ if (strcmp(getenv("AFL_DEBUG"), "0") == 0) unsetenv("AFL_DEBUG");
+
+ } else if (getenv("AFL_QUIET")) {
+
+ be_quiet = 1;
+
+ }
+
+ if ((getenv("AFL_PASSTHROUGH") || getenv("AFL_NOOPT")) && (!aflcc->debug)) {
+
+ be_quiet = 1;
+
+ }
+
+}
+
+/*
+ Try to find a specific runtime we need, in here:
+
+ 1. firstly we check the $AFL_PATH environment variable location if set
+ 2. next we check argv[0] if it has path information and use it
a) we also check ../lib/afl
- 4. if 3. failed we check /proc (only Linux, Android, NetBSD, DragonFly, and
+ 3. if 2. failed we check /proc (only Linux, Android, NetBSD, DragonFly, and
FreeBSD with procfs)
a) and check here in ../lib/afl too
- 5. we look into the AFL_PATH define (usually /usr/local/lib/afl)
- 6. we finally try the current directory
+ 4. we look into the AFL_PATH define (usually /usr/local/lib/afl)
+ 5. we finally try the current directory
if all these attempts fail - we return NULL and the caller has to decide
- what to do.
+ what to do. Otherwise the path to obj would be allocated and returned.
*/
+u8 *find_object(aflcc_state_t *aflcc, u8 *obj) {
-static u8 *find_object(u8 *obj, u8 *argv0) {
+ u8 *argv0 = aflcc->argv0;
u8 *afl_path = getenv("AFL_PATH");
u8 *slash = NULL, *tmp;
@@ -164,14 +388,9 @@
tmp = alloc_printf("%s/%s", afl_path, obj);
- if (debug) DEBUGF("Trying %s\n", tmp);
+ if (aflcc->debug) DEBUGF("Trying %s\n", tmp);
- if (!access(tmp, R_OK)) {
-
- obj_path = afl_path;
- return tmp;
-
- }
+ if (!access(tmp, R_OK)) { return tmp; }
ck_free(tmp);
@@ -190,11 +409,11 @@
tmp = alloc_printf("%s/%s", dir, obj);
- if (debug) DEBUGF("Trying %s\n", tmp);
+ if (aflcc->debug) DEBUGF("Trying %s\n", tmp);
if (!access(tmp, R_OK)) {
- obj_path = dir;
+ ck_free(dir);
return tmp;
}
@@ -202,12 +421,10 @@
ck_free(tmp);
tmp = alloc_printf("%s/../lib/afl/%s", dir, obj);
- if (debug) DEBUGF("Trying %s\n", tmp);
+ if (aflcc->debug) DEBUGF("Trying %s\n", tmp);
if (!access(tmp, R_OK)) {
- u8 *dir2 = alloc_printf("%s/../lib/afl", dir);
- obj_path = dir2;
ck_free(dir);
return tmp;
@@ -247,26 +464,16 @@
*slash = 0;
tmp = alloc_printf("%s/%s", exepath, obj);
- if (!access(tmp, R_OK)) {
-
- u8 *dir = alloc_printf("%s", exepath);
- obj_path = dir;
- return tmp;
-
- }
+ if (!access(tmp, R_OK)) { return tmp; }
ck_free(tmp);
tmp = alloc_printf("%s/../lib/afl/%s", exepath, obj);
- if (debug) DEBUGF("Trying %s\n", tmp);
+ if (aflcc->debug) DEBUGF("Trying %s\n", tmp);
- if (!access(tmp, R_OK)) {
+ if (!access(tmp, R_OK)) { return tmp; }
- u8 *dir = alloc_printf("%s/../lib/afl/", exepath);
- obj_path = dir;
- return tmp;
-
- }
+ ck_free(tmp);
}
@@ -283,44 +490,1199 @@
tmp = alloc_printf("%s/%s", AFL_PATH, obj);
- if (debug) DEBUGF("Trying %s\n", tmp);
+ if (aflcc->debug) DEBUGF("Trying %s\n", tmp);
- if (!access(tmp, R_OK)) {
-
- obj_path = AFL_PATH;
- return tmp;
-
- }
+ if (!access(tmp, R_OK)) { return tmp; }
ck_free(tmp);
-
tmp = alloc_printf("./%s", obj);
- if (debug) DEBUGF("Trying %s\n", tmp);
+ if (aflcc->debug) DEBUGF("Trying %s\n", tmp);
- if (!access(tmp, R_OK)) {
-
- obj_path = ".";
- return tmp;
-
- }
+ if (!access(tmp, R_OK)) { return tmp; }
ck_free(tmp);
- if (debug) DEBUGF("Trying ... giving up\n");
+ if (aflcc->debug) DEBUGF("Trying ... giving up\n");
return NULL;
}
-void parse_fsanitize(char *string) {
+/*
+ Deduce some info about compiler toolchains in current system,
+ from the building results of AFL++
+*/
+void find_built_deps(aflcc_state_t *aflcc) {
+
+ char *ptr = NULL;
+
+#if defined(__x86_64__)
+ if ((ptr = find_object(aflcc, "as")) != NULL) {
+
+ #ifndef __APPLE__
+ // on OSX clang masquerades as GCC
+ aflcc->have_gcc = 1;
+ #endif
+ aflcc->have_clang = 1;
+ ck_free(ptr);
+
+ }
+
+#endif
+
+ if ((ptr = find_object(aflcc, "SanitizerCoveragePCGUARD.so")) != NULL) {
+
+ aflcc->have_optimized_pcguard = 1;
+ ck_free(ptr);
+
+ }
+
+#if (LLVM_MAJOR >= 3)
+
+ if ((ptr = find_object(aflcc, "SanitizerCoverageLTO.so")) != NULL) {
+
+ aflcc->have_lto = 1;
+ ck_free(ptr);
+
+ }
+
+ if ((ptr = find_object(aflcc, "cmplog-routines-pass.so")) != NULL) {
+
+ aflcc->have_llvm = 1;
+ ck_free(ptr);
+
+ }
+
+#endif
+
+#ifdef __ANDROID__
+ aflcc->have_llvm = 1;
+#endif
+
+ if ((ptr = find_object(aflcc, "afl-gcc-pass.so")) != NULL) {
+
+ aflcc->have_gcc_plugin = 1;
+ ck_free(ptr);
+
+ }
+
+#if !defined(__ANDROID__) && !defined(ANDROID)
+ ptr = find_object(aflcc, "afl-compiler-rt.o");
+
+ if (!ptr) {
+
+ FATAL(
+ "Unable to find 'afl-compiler-rt.o'. Please set the AFL_PATH "
+ "environment variable.");
+
+ }
+
+ if (aflcc->debug) { DEBUGF("rt=%s\n", ptr); }
+
+ ck_free(ptr);
+#endif
+
+}
+
+/** compiler_mode & instrument_mode selecting -----BEGIN----- **/
+
+/* Select compiler_mode by callname, such as "afl-clang-fast", etc. */
+void compiler_mode_by_callname(aflcc_state_t *aflcc) {
+
+ if (strncmp(aflcc->callname, "afl-clang-fast", 14) == 0) {
+
+ /* afl-clang-fast is always created there by makefile
+ just like afl-clang, burdened with special purposes:
+ - If llvm-config is not available (i.e. LLVM_MAJOR is 0),
+ or too old, it falls back to LLVM-NATIVE mode and let
+ the actual compiler complain if doesn't work.
+ - Otherwise try default llvm instruments except LTO.
+ */
+#if (LLVM_MAJOR >= 3)
+ aflcc->compiler_mode = LLVM;
+#else
+ aflcc->compiler_mode = CLANG;
+#endif
+
+ } else
+
+#if (LLVM_MAJOR >= 3)
+
+ if (strncmp(aflcc->callname, "afl-clang-lto", 13) == 0 ||
+
+ strncmp(aflcc->callname, "afl-lto", 7) == 0) {
+
+ aflcc->compiler_mode = LTO;
+
+ } else
+
+#endif
+
+ if (strncmp(aflcc->callname, "afl-gcc-fast", 12) == 0 ||
+
+ strncmp(aflcc->callname, "afl-g++-fast", 12) == 0) {
+
+ aflcc->compiler_mode = GCC_PLUGIN;
+
+ } else if (strncmp(aflcc->callname, "afl-gcc", 7) == 0 ||
+
+ strncmp(aflcc->callname, "afl-g++", 7) == 0) {
+
+ aflcc->compiler_mode = GCC;
+
+ } else if (strcmp(aflcc->callname, "afl-clang") == 0 ||
+
+ strcmp(aflcc->callname, "afl-clang++") == 0) {
+
+ aflcc->compiler_mode = CLANG;
+
+ }
+
+}
+
+/*
+ Select compiler_mode by env AFL_CC_COMPILER. And passthrough mode can be
+ regarded as a special compiler_mode, so we check for it here, too.
+*/
+void compiler_mode_by_environ(aflcc_state_t *aflcc) {
+
+ if (getenv("AFL_PASSTHROUGH") || getenv("AFL_NOOPT")) {
+
+ aflcc->passthrough = 1;
+
+ }
+
+ char *ptr = getenv("AFL_CC_COMPILER");
+
+ if (!ptr) { return; }
+
+ if (aflcc->compiler_mode) {
+
+ if (!be_quiet) {
+
+ WARNF(
+ "\"AFL_CC_COMPILER\" is set but a specific compiler was already "
+ "selected by command line parameter or symlink, ignoring the "
+ "environment variable!");
+
+ }
+
+ } else {
+
+ if (strncasecmp(ptr, "LTO", 3) == 0) {
+
+ aflcc->compiler_mode = LTO;
+
+ } else if (strncasecmp(ptr, "LLVM", 4) == 0) {
+
+ aflcc->compiler_mode = LLVM;
+
+ } else if (strncasecmp(ptr, "GCC_P", 5) == 0 ||
+
+ strncasecmp(ptr, "GCC-P", 5) == 0 ||
+ strncasecmp(ptr, "GCCP", 4) == 0) {
+
+ aflcc->compiler_mode = GCC_PLUGIN;
+
+ } else if (strcasecmp(ptr, "GCC") == 0) {
+
+ aflcc->compiler_mode = GCC;
+
+ } else if (strcasecmp(ptr, "CLANG") == 0) {
+
+ aflcc->compiler_mode = CLANG;
+
+ } else
+
+ FATAL("Unknown AFL_CC_COMPILER mode: %s\n", ptr);
+
+ }
+
+}
+
+/*
+ Select compiler_mode by command line options --afl-...
+ If it can be inferred, instrument_mode would also be set.
+ This can supersedes previous result based on callname
+ or AFL_CC_COMPILER. And "--afl_noopt"/"--afl-noopt" will
+ be overwritten by "-g".
+*/
+void compiler_mode_by_cmdline(aflcc_state_t *aflcc, int argc, char **argv) {
+
+ char *ptr = NULL;
+
+ for (int i = 1; i < argc; i++) {
+
+ if (strncmp(argv[i], "--afl", 5) == 0) {
+
+ if (!strcmp(argv[i], "--afl_noopt") || !strcmp(argv[i], "--afl-noopt")) {
+
+ aflcc->passthrough = 1;
+ argv[i] = "-g"; // we have to overwrite it, -g is always good
+ continue;
+
+ }
+
+ if (aflcc->compiler_mode && !be_quiet) {
+
+ WARNF(
+ "--afl-... compiler mode supersedes the AFL_CC_COMPILER and "
+ "symlink compiler selection!");
+
+ }
+
+ ptr = argv[i];
+ ptr += 5;
+ while (*ptr == '-')
+ ptr++;
+
+ if (strncasecmp(ptr, "LTO", 3) == 0) {
+
+ aflcc->compiler_mode = LTO;
+
+ } else if (strncasecmp(ptr, "LLVM", 4) == 0) {
+
+ aflcc->compiler_mode = LLVM;
+
+ } else if (strncasecmp(ptr, "PCGUARD", 7) == 0 ||
+
+ strncasecmp(ptr, "PC-GUARD", 8) == 0) {
+
+ aflcc->compiler_mode = LLVM;
+ aflcc->instrument_mode = INSTRUMENT_PCGUARD;
+
+ } else if (strcasecmp(ptr, "INSTRIM") == 0 ||
+
+ strcasecmp(ptr, "CFG") == 0) {
+
+ FATAL(
+ "InsTrim instrumentation was removed. Use a modern LLVM and "
+ "PCGUARD (default in afl-cc).\n");
+
+ } else if (strcasecmp(ptr, "AFL") == 0 ||
+
+ strcasecmp(ptr, "CLASSIC") == 0) {
+
+ aflcc->compiler_mode = LLVM;
+ aflcc->instrument_mode = INSTRUMENT_CLASSIC;
+
+ } else if (strcasecmp(ptr, "LLVMNATIVE") == 0 ||
+
+ strcasecmp(ptr, "NATIVE") == 0 ||
+ strcasecmp(ptr, "LLVM-NATIVE") == 0) {
+
+ aflcc->compiler_mode = LLVM;
+ aflcc->instrument_mode = INSTRUMENT_LLVMNATIVE;
+
+ } else if (strncasecmp(ptr, "GCC_P", 5) == 0 ||
+
+ strncasecmp(ptr, "GCC-P", 5) == 0 ||
+ strncasecmp(ptr, "GCCP", 4) == 0) {
+
+ aflcc->compiler_mode = GCC_PLUGIN;
+
+ } else if (strcasecmp(ptr, "GCC") == 0) {
+
+ aflcc->compiler_mode = GCC;
+
+ } else if (strncasecmp(ptr, "CLANG", 5) == 0) {
+
+ aflcc->compiler_mode = CLANG;
+
+ } else
+
+ FATAL("Unknown --afl-... compiler mode: %s\n", argv[i]);
+
+ }
+
+ }
+
+}
+
+/*
+ Select instrument_mode by those envs in old style:
+ - USE_TRACE_PC, AFL_USE_TRACE_PC, AFL_LLVM_USE_TRACE_PC, AFL_TRACE_PC
+ - AFL_LLVM_CALLER, AFL_LLVM_CTX, AFL_LLVM_CTX_K
+ - AFL_LLVM_NGRAM_SIZE
+*/
+static void instrument_mode_old_environ(aflcc_state_t *aflcc) {
+
+ if (getenv("AFL_LLVM_INSTRIM") || getenv("INSTRIM") ||
+ getenv("INSTRIM_LIB")) {
+
+ FATAL(
+ "InsTrim instrumentation was removed. Use a modern LLVM and PCGUARD "
+ "(default in afl-cc).\n");
+
+ }
+
+ if (getenv("USE_TRACE_PC") || getenv("AFL_USE_TRACE_PC") ||
+ getenv("AFL_LLVM_USE_TRACE_PC") || getenv("AFL_TRACE_PC")) {
+
+ if (aflcc->instrument_mode == 0)
+ aflcc->instrument_mode = INSTRUMENT_PCGUARD;
+ else if (aflcc->instrument_mode != INSTRUMENT_PCGUARD)
+ FATAL("you cannot set AFL_LLVM_INSTRUMENT and AFL_TRACE_PC together");
+
+ }
+
+ if (getenv("AFL_LLVM_CTX")) aflcc->instrument_opt_mode |= INSTRUMENT_OPT_CTX;
+ if (getenv("AFL_LLVM_CALLER"))
+ aflcc->instrument_opt_mode |= INSTRUMENT_OPT_CALLER;
+
+ if (getenv("AFL_LLVM_NGRAM_SIZE")) {
+
+ aflcc->instrument_opt_mode |= INSTRUMENT_OPT_NGRAM;
+ aflcc->ngram_size = atoi(getenv("AFL_LLVM_NGRAM_SIZE"));
+ if (aflcc->ngram_size < 2 || aflcc->ngram_size > NGRAM_SIZE_MAX)
+ FATAL(
+ "NGRAM instrumentation mode must be between 2 and NGRAM_SIZE_MAX "
+ "(%u)",
+ NGRAM_SIZE_MAX);
+
+ }
+
+ if (getenv("AFL_LLVM_CTX_K")) {
+
+ aflcc->ctx_k = atoi(getenv("AFL_LLVM_CTX_K"));
+ if (aflcc->ctx_k < 1 || aflcc->ctx_k > CTX_MAX_K)
+ FATAL("K-CTX instrumentation mode must be between 1 and CTX_MAX_K (%u)",
+ CTX_MAX_K);
+ if (aflcc->ctx_k == 1) {
+
+ setenv("AFL_LLVM_CALLER", "1", 1);
+ unsetenv("AFL_LLVM_CTX_K");
+ aflcc->instrument_opt_mode |= INSTRUMENT_OPT_CALLER;
+
+ } else {
+
+ aflcc->instrument_opt_mode |= INSTRUMENT_OPT_CTX_K;
+
+ }
+
+ }
+
+}
+
+/*
+ Select instrument_mode by env 'AFL_LLVM_INSTRUMENT'.
+ Previous compiler_mode will be superseded, if required by some
+ values of instrument_mode.
+*/
+static void instrument_mode_new_environ(aflcc_state_t *aflcc) {
+
+ if (!getenv("AFL_LLVM_INSTRUMENT")) { return; }
+
+ u8 *ptr2 = strtok(getenv("AFL_LLVM_INSTRUMENT"), ":,;");
+
+ while (ptr2) {
+
+ if (strncasecmp(ptr2, "afl", strlen("afl")) == 0 ||
+ strncasecmp(ptr2, "classic", strlen("classic")) == 0) {
+
+ if (aflcc->instrument_mode == INSTRUMENT_LTO) {
+
+ aflcc->instrument_mode = INSTRUMENT_CLASSIC;
+ aflcc->lto_mode = 1;
+
+ } else if (!aflcc->instrument_mode ||
+
+ aflcc->instrument_mode == INSTRUMENT_AFL) {
+
+ aflcc->instrument_mode = INSTRUMENT_AFL;
+
+ } else {
+
+ FATAL("main instrumentation mode already set with %s",
+ instrument_mode_2str(aflcc->instrument_mode));
+
+ }
+
+ }
+
+ if (strncasecmp(ptr2, "pc-guard", strlen("pc-guard")) == 0 ||
+ strncasecmp(ptr2, "pcguard", strlen("pcguard")) == 0) {
+
+ if (!aflcc->instrument_mode ||
+ aflcc->instrument_mode == INSTRUMENT_PCGUARD)
+
+ aflcc->instrument_mode = INSTRUMENT_PCGUARD;
+
+ else
+ FATAL("main instrumentation mode already set with %s",
+ instrument_mode_2str(aflcc->instrument_mode));
+
+ }
+
+ if (strncasecmp(ptr2, "llvmnative", strlen("llvmnative")) == 0 ||
+ strncasecmp(ptr2, "llvm-native", strlen("llvm-native")) == 0 ||
+ strncasecmp(ptr2, "native", strlen("native")) == 0) {
+
+ if (!aflcc->instrument_mode ||
+ aflcc->instrument_mode == INSTRUMENT_LLVMNATIVE)
+
+ aflcc->instrument_mode = INSTRUMENT_LLVMNATIVE;
+
+ else
+ FATAL("main instrumentation mode already set with %s",
+ instrument_mode_2str(aflcc->instrument_mode));
+
+ }
+
+ if (strncasecmp(ptr2, "llvmcodecov", strlen("llvmcodecov")) == 0 ||
+ strncasecmp(ptr2, "llvm-codecov", strlen("llvm-codecov")) == 0) {
+
+ if (!aflcc->instrument_mode ||
+ aflcc->instrument_mode == INSTRUMENT_LLVMNATIVE) {
+
+ aflcc->instrument_mode = INSTRUMENT_LLVMNATIVE;
+ aflcc->instrument_opt_mode |= INSTRUMENT_OPT_CODECOV;
+
+ } else {
+
+ FATAL("main instrumentation mode already set with %s",
+ instrument_mode_2str(aflcc->instrument_mode));
+
+ }
+
+ }
+
+ if (strncasecmp(ptr2, "cfg", strlen("cfg")) == 0 ||
+ strncasecmp(ptr2, "instrim", strlen("instrim")) == 0) {
+
+ FATAL(
+ "InsTrim instrumentation was removed. Use a modern LLVM and "
+ "PCGUARD (default in afl-cc).\n");
+
+ }
+
+ if (strncasecmp(ptr2, "lto", strlen("lto")) == 0) {
+
+ aflcc->lto_mode = 1;
+ if (!aflcc->instrument_mode || aflcc->instrument_mode == INSTRUMENT_LTO)
+
+ aflcc->instrument_mode = INSTRUMENT_LTO;
+
+ else
+ FATAL("main instrumentation mode already set with %s",
+ instrument_mode_2str(aflcc->instrument_mode));
+
+ }
+
+ if (strcasecmp(ptr2, "gcc") == 0) {
+
+ if (!aflcc->instrument_mode || aflcc->instrument_mode == INSTRUMENT_GCC)
+
+ aflcc->instrument_mode = INSTRUMENT_GCC;
+
+ else if (aflcc->instrument_mode != INSTRUMENT_GCC)
+ FATAL("main instrumentation mode already set with %s",
+ instrument_mode_2str(aflcc->instrument_mode));
+
+ aflcc->compiler_mode = GCC;
+
+ }
+
+ if (strcasecmp(ptr2, "clang") == 0) {
+
+ if (!aflcc->instrument_mode || aflcc->instrument_mode == INSTRUMENT_CLANG)
+
+ aflcc->instrument_mode = INSTRUMENT_CLANG;
+
+ else if (aflcc->instrument_mode != INSTRUMENT_CLANG)
+ FATAL("main instrumentation mode already set with %s",
+ instrument_mode_2str(aflcc->instrument_mode));
+
+ aflcc->compiler_mode = CLANG;
+
+ }
+
+ if (strncasecmp(ptr2, "ctx-", strlen("ctx-")) == 0 ||
+ strncasecmp(ptr2, "kctx-", strlen("c-ctx-")) == 0 ||
+ strncasecmp(ptr2, "k-ctx-", strlen("k-ctx-")) == 0) {
+
+ u8 *ptr3 = ptr2;
+ while (*ptr3 && (*ptr3 < '0' || *ptr3 > '9'))
+ ptr3++;
+
+ if (!*ptr3) {
+
+ if ((ptr3 = getenv("AFL_LLVM_CTX_K")) == NULL)
+ FATAL(
+ "you must set the K-CTX K with (e.g. for value 2) "
+ "AFL_LLVM_INSTRUMENT=ctx-2");
+
+ }
+
+ aflcc->ctx_k = atoi(ptr3);
+ if (aflcc->ctx_k < 1 || aflcc->ctx_k > CTX_MAX_K)
+ FATAL(
+ "K-CTX instrumentation option must be between 1 and CTX_MAX_K "
+ "(%u)",
+ CTX_MAX_K);
+
+ if (aflcc->ctx_k == 1) {
+
+ aflcc->instrument_opt_mode |= INSTRUMENT_OPT_CALLER;
+ setenv("AFL_LLVM_CALLER", "1", 1);
+ unsetenv("AFL_LLVM_CTX_K");
+
+ } else {
+
+ aflcc->instrument_opt_mode |= (INSTRUMENT_OPT_CTX_K);
+ u8 *ptr4 = alloc_printf("%u", aflcc->ctx_k);
+ setenv("AFL_LLVM_CTX_K", ptr4, 1);
+
+ }
+
+ }
+
+ if (strcasecmp(ptr2, "ctx") == 0) {
+
+ aflcc->instrument_opt_mode |= INSTRUMENT_OPT_CTX;
+ setenv("AFL_LLVM_CTX", "1", 1);
+
+ }
+
+ if (strncasecmp(ptr2, "caller", strlen("caller")) == 0) {
+
+ aflcc->instrument_opt_mode |= INSTRUMENT_OPT_CALLER;
+ setenv("AFL_LLVM_CALLER", "1", 1);
+
+ }
+
+ if (strncasecmp(ptr2, "ngram", strlen("ngram")) == 0) {
+
+ u8 *ptr3 = ptr2 + strlen("ngram");
+ while (*ptr3 && (*ptr3 < '0' || *ptr3 > '9')) {
+
+ ptr3++;
+
+ }
+
+ if (!*ptr3) {
+
+ if ((ptr3 = getenv("AFL_LLVM_NGRAM_SIZE")) == NULL)
+ FATAL(
+ "you must set the NGRAM size with (e.g. for value 2) "
+ "AFL_LLVM_INSTRUMENT=ngram-2");
+
+ }
+
+ aflcc->ngram_size = atoi(ptr3);
+
+ if (aflcc->ngram_size < 2 || aflcc->ngram_size > NGRAM_SIZE_MAX) {
+
+ FATAL(
+ "NGRAM instrumentation option must be between 2 and "
+ "NGRAM_SIZE_MAX (%u)",
+ NGRAM_SIZE_MAX);
+
+ }
+
+ aflcc->instrument_opt_mode |= (INSTRUMENT_OPT_NGRAM);
+ u8 *ptr4 = alloc_printf("%u", aflcc->ngram_size);
+ setenv("AFL_LLVM_NGRAM_SIZE", ptr4, 1);
+
+ }
+
+ ptr2 = strtok(NULL, ":,;");
+
+ }
+
+}
+
+/*
+ Select instrument_mode by envs, the top wrapper. We check
+ have_instr_env firstly, then call instrument_mode_old_environ
+ and instrument_mode_new_environ sequentially.
+*/
+void instrument_mode_by_environ(aflcc_state_t *aflcc) {
+
+ if (getenv("AFL_LLVM_INSTRUMENT_FILE") || getenv("AFL_LLVM_WHITELIST") ||
+ getenv("AFL_LLVM_ALLOWLIST") || getenv("AFL_LLVM_DENYLIST") ||
+ getenv("AFL_LLVM_BLOCKLIST")) {
+
+ aflcc->have_instr_env = 1;
+
+ }
+
+ if (aflcc->have_instr_env && getenv("AFL_DONT_OPTIMIZE") && !be_quiet) {
+
+ WARNF(
+ "AFL_LLVM_ALLOWLIST/DENYLIST and AFL_DONT_OPTIMIZE cannot be combined "
+ "for file matching, only function matching!");
+
+ }
+
+ instrument_mode_old_environ(aflcc);
+ instrument_mode_new_environ(aflcc);
+
+}
+
+/*
+ Workaround to ensure CALLER, CTX, K-CTX and NGRAM
+ instrumentation were used correctly.
+*/
+static void instrument_opt_mode_exclude(aflcc_state_t *aflcc) {
+
+ if ((aflcc->instrument_opt_mode & INSTRUMENT_OPT_CTX) &&
+ (aflcc->instrument_opt_mode & INSTRUMENT_OPT_CALLER)) {
+
+ FATAL("you cannot set CTX and CALLER together");
+
+ }
+
+ if ((aflcc->instrument_opt_mode & INSTRUMENT_OPT_CTX) &&
+ (aflcc->instrument_opt_mode & INSTRUMENT_OPT_CTX_K)) {
+
+ FATAL("you cannot set CTX and K-CTX together");
+
+ }
+
+ if ((aflcc->instrument_opt_mode & INSTRUMENT_OPT_CALLER) &&
+ (aflcc->instrument_opt_mode & INSTRUMENT_OPT_CTX_K)) {
+
+ FATAL("you cannot set CALLER and K-CTX together");
+
+ }
+
+ if (aflcc->instrument_opt_mode && aflcc->compiler_mode != LLVM)
+ FATAL("CTX, CALLER and NGRAM can only be used in LLVM mode");
+
+ if (aflcc->instrument_opt_mode &&
+ aflcc->instrument_opt_mode != INSTRUMENT_OPT_CODECOV &&
+ aflcc->instrument_mode != INSTRUMENT_CLASSIC)
+ FATAL(
+ "CALLER, CTX and NGRAM instrumentation options can only be used with "
+ "the LLVM CLASSIC instrumentation mode.");
+
+}
+
+/*
+ Last step of compiler_mode & instrument_mode selecting.
+ We have a few of workarounds here, to check any corner cases,
+ prepare for a series of fallbacks, and raise warnings or errors.
+*/
+void mode_final_checkout(aflcc_state_t *aflcc, int argc, char **argv) {
+
+ if (aflcc->instrument_opt_mode &&
+ aflcc->instrument_mode == INSTRUMENT_DEFAULT &&
+ (aflcc->compiler_mode == LLVM || aflcc->compiler_mode == UNSET)) {
+
+ aflcc->instrument_mode = INSTRUMENT_CLASSIC;
+ aflcc->compiler_mode = LLVM;
+
+ }
+
+ if (!aflcc->compiler_mode) {
+
+ // lto is not a default because outside of afl-cc RANLIB and AR have to
+ // be set to LLVM versions so this would work
+ if (aflcc->have_llvm)
+ aflcc->compiler_mode = LLVM;
+ else if (aflcc->have_gcc_plugin)
+ aflcc->compiler_mode = GCC_PLUGIN;
+ else if (aflcc->have_gcc)
+ aflcc->compiler_mode = GCC;
+ else if (aflcc->have_clang)
+ aflcc->compiler_mode = CLANG;
+ else if (aflcc->have_lto)
+ aflcc->compiler_mode = LTO;
+ else
+ FATAL("no compiler mode available");
+
+ }
+
+ switch (aflcc->compiler_mode) {
+
+ case GCC:
+ if (!aflcc->have_gcc) FATAL("afl-gcc is not available on your platform!");
+ break;
+ case CLANG:
+ if (!aflcc->have_clang)
+ FATAL("afl-clang is not available on your platform!");
+ break;
+ case LLVM:
+ if (!aflcc->have_llvm)
+ FATAL(
+ "LLVM mode is not available, please install LLVM 13+ and recompile "
+ "AFL++");
+ break;
+ case GCC_PLUGIN:
+ if (!aflcc->have_gcc_plugin)
+ FATAL(
+ "GCC_PLUGIN mode is not available, install gcc plugin support and "
+ "recompile AFL++");
+ break;
+ case LTO:
+ if (!aflcc->have_lto)
+ FATAL(
+ "LTO mode is not available, please install LLVM 13+ and lld of the "
+ "same version and recompile AFL++");
+ break;
+ default:
+ FATAL("no compiler mode available");
+
+ }
+
+ if (aflcc->compiler_mode == GCC) { aflcc->instrument_mode = INSTRUMENT_GCC; }
+
+ if (aflcc->compiler_mode == CLANG) {
+
+ /* if our PCGUARD implementation is not available then silently switch to
+ native LLVM PCGUARD. Or classic asm instrument is explicitly preferred. */
+ if (!aflcc->have_optimized_pcguard &&
+ (aflcc->instrument_mode == INSTRUMENT_DEFAULT ||
+ aflcc->instrument_mode == INSTRUMENT_PCGUARD)) {
+
+ aflcc->instrument_mode = INSTRUMENT_LLVMNATIVE;
+
+ } else {
+
+ aflcc->instrument_mode = INSTRUMENT_CLANG;
+ setenv(CLANG_ENV_VAR, "1", 1); // used by afl-as
+
+ }
+
+ }
+
+ if (aflcc->compiler_mode == LTO) {
+
+ if (aflcc->instrument_mode == 0 ||
+ aflcc->instrument_mode == INSTRUMENT_LTO ||
+ aflcc->instrument_mode == INSTRUMENT_CFG ||
+ aflcc->instrument_mode == INSTRUMENT_PCGUARD) {
+
+ aflcc->lto_mode = 1;
+ // force CFG
+ // if (!aflcc->instrument_mode) {
+
+ aflcc->instrument_mode = INSTRUMENT_PCGUARD;
+
+ // }
+
+ } else if (aflcc->instrument_mode == INSTRUMENT_CLASSIC) {
+
+ aflcc->lto_mode = 1;
+
+ } else {
+
+ if (!be_quiet) {
+
+ WARNF("afl-clang-lto called with mode %s, using that mode instead",
+ instrument_mode_2str(aflcc->instrument_mode));
+
+ }
+
+ }
+
+ }
+
+ if (aflcc->instrument_mode == 0 && aflcc->compiler_mode < GCC_PLUGIN) {
+
+#if LLVM_MAJOR >= 7
+ #if LLVM_MAJOR < 11 && (LLVM_MAJOR < 10 || LLVM_MINOR < 1)
+ if (aflcc->have_instr_env) {
+
+ aflcc->instrument_mode = INSTRUMENT_AFL;
+ if (!be_quiet) {
+
+ WARNF(
+ "Switching to classic instrumentation because "
+ "AFL_LLVM_ALLOWLIST/DENYLIST does not work with PCGUARD < 10.0.1.");
+
+ }
+
+ } else
+
+ #endif
+ aflcc->instrument_mode = INSTRUMENT_PCGUARD;
+
+#else
+ aflcc->instrument_mode = INSTRUMENT_AFL;
+#endif
+
+ }
+
+ if (!aflcc->instrument_opt_mode && aflcc->lto_mode &&
+ aflcc->instrument_mode == INSTRUMENT_CFG) {
+
+ aflcc->instrument_mode = INSTRUMENT_PCGUARD;
+
+ }
+
+#ifndef AFL_CLANG_FLTO
+ if (aflcc->lto_mode)
+ FATAL(
+ "instrumentation mode LTO specified but LLVM support not available "
+ "(requires LLVM 11 or higher)");
+#endif
+
+ if (aflcc->lto_mode) {
+
+ if (aflcc->lto_flag[0] != '-')
+ FATAL(
+ "Using afl-clang-lto is not possible because Makefile magic did not "
+ "identify the correct -flto flag");
+ else
+ aflcc->compiler_mode = LTO;
+
+ }
+
+ if (getenv("AFL_LLVM_SKIP_NEVERZERO") && getenv("AFL_LLVM_NOT_ZERO"))
+ FATAL(
+ "AFL_LLVM_NOT_ZERO and AFL_LLVM_SKIP_NEVERZERO can not be set "
+ "together");
+
+#if LLVM_MAJOR < 11 && (LLVM_MAJOR < 10 || LLVM_MINOR < 1)
+
+ if (aflcc->instrument_mode == INSTRUMENT_PCGUARD && aflcc->have_instr_env) {
+
+ FATAL(
+ "Instrumentation type PCGUARD does not support "
+ "AFL_LLVM_ALLOWLIST/DENYLIST! Use LLVM 10.0.1+ instead.");
+
+ }
+
+#endif
+
+ instrument_opt_mode_exclude(aflcc);
+
+ u8 *ptr2;
+
+ if ((ptr2 = getenv("AFL_LLVM_DICT2FILE")) != NULL && *ptr2 != '/')
+ FATAL("AFL_LLVM_DICT2FILE must be set to an absolute file path");
+
+ if (getenv("AFL_LLVM_LAF_ALL")) {
+
+ setenv("AFL_LLVM_LAF_SPLIT_SWITCHES", "1", 1);
+ setenv("AFL_LLVM_LAF_SPLIT_COMPARES", "1", 1);
+ setenv("AFL_LLVM_LAF_SPLIT_FLOATS", "1", 1);
+ setenv("AFL_LLVM_LAF_TRANSFORM_COMPARES", "1", 1);
+
+ }
+
+ aflcc->cmplog_mode = getenv("AFL_CMPLOG") || getenv("AFL_LLVM_CMPLOG") ||
+ getenv("AFL_GCC_CMPLOG");
+
+}
+
+/*
+ Print welcome message on screen, giving brief notes about
+ compiler_mode and instrument_mode.
+*/
+void mode_notification(aflcc_state_t *aflcc) {
+
+ char *ptr2 = alloc_printf(" + NGRAM-%u", aflcc->ngram_size);
+ char *ptr3 = alloc_printf(" + K-CTX-%u", aflcc->ctx_k);
+
+ char *ptr1 = alloc_printf(
+ "%s%s%s%s%s", instrument_mode_2str(aflcc->instrument_mode),
+ (aflcc->instrument_opt_mode & INSTRUMENT_OPT_CTX) ? " + CTX" : "",
+ (aflcc->instrument_opt_mode & INSTRUMENT_OPT_CALLER) ? " + CALLER" : "",
+ (aflcc->instrument_opt_mode & INSTRUMENT_OPT_NGRAM) ? ptr2 : "",
+ (aflcc->instrument_opt_mode & INSTRUMENT_OPT_CTX_K) ? ptr3 : "");
+
+ ck_free(ptr2);
+ ck_free(ptr3);
+
+ if ((isatty(2) && !be_quiet) || aflcc->debug) {
+
+ SAYF(cCYA
+ "afl-cc" VERSION cRST
+ " by Michal Zalewski, Laszlo Szekeres, Marc Heuse - mode: %s-%s\n",
+ compiler_mode_2str(aflcc->compiler_mode), ptr1);
+
+ }
+
+ ck_free(ptr1);
+
+ if (!be_quiet &&
+ (aflcc->compiler_mode == GCC || aflcc->compiler_mode == CLANG)) {
+
+ WARNF(
+ "You are using outdated instrumentation, install LLVM and/or "
+ "gcc-plugin and use afl-clang-fast/afl-clang-lto/afl-gcc-fast "
+ "instead!");
+
+ }
+
+}
+
+/*
+ Set argv[0] required by execvp. It can be
+ - specified by env AFL_CXX
+ - g++ or clang++
+ - CLANGPP_BIN or LLVM_BINDIR/clang++
+ when in C++ mode, or
+ - specified by env AFL_CC
+ - gcc or clang
+ - CLANG_BIN or LLVM_BINDIR/clang
+ otherwise.
+*/
+void add_real_argv0(aflcc_state_t *aflcc) {
+
+ static u8 llvm_fullpath[PATH_MAX];
+
+ if (aflcc->plusplus_mode) {
+
+ u8 *alt_cxx = getenv("AFL_CXX");
+
+ if (!alt_cxx) {
+
+ if (aflcc->compiler_mode == GCC || aflcc->compiler_mode == GCC_PLUGIN) {
+
+ alt_cxx = "g++";
+
+ } else if (aflcc->compiler_mode == CLANG) {
+
+ alt_cxx = "clang++";
+
+ } else {
+
+ if (USE_BINDIR)
+ snprintf(llvm_fullpath, sizeof(llvm_fullpath), "%s/clang++",
+ LLVM_BINDIR);
+ else
+ snprintf(llvm_fullpath, sizeof(llvm_fullpath), CLANGPP_BIN);
+ alt_cxx = llvm_fullpath;
+
+ }
+
+ }
+
+ aflcc->cc_params[0] = alt_cxx;
+
+ } else {
+
+ u8 *alt_cc = getenv("AFL_CC");
+
+ if (!alt_cc) {
+
+ if (aflcc->compiler_mode == GCC || aflcc->compiler_mode == GCC_PLUGIN) {
+
+ alt_cc = "gcc";
+
+ } else if (aflcc->compiler_mode == CLANG) {
+
+ alt_cc = "clang";
+
+ } else {
+
+ if (USE_BINDIR)
+ snprintf(llvm_fullpath, sizeof(llvm_fullpath), "%s/clang",
+ LLVM_BINDIR);
+ else
+ snprintf(llvm_fullpath, sizeof(llvm_fullpath), CLANG_BIN);
+ alt_cc = llvm_fullpath;
+
+ }
+
+ }
+
+ aflcc->cc_params[0] = alt_cc;
+
+ }
+
+}
+
+/** compiler_mode & instrument_mode selecting -----END----- **/
+
+/** Macro defs for the preprocessor -----BEGIN----- **/
+
+void add_defs_common(aflcc_state_t *aflcc) {
+
+ insert_param(aflcc, "-D__AFL_COMPILER=1");
+ insert_param(aflcc, "-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION=1");
+
+}
+
+/*
+ __afl_coverage macro defs. See
+ instrumentation/README.instrument_list.md#
+ 2-selective-instrumentation-with-_afl_coverage-directives
+*/
+void add_defs_selective_instr(aflcc_state_t *aflcc) {
+
+ if (aflcc->plusplus_mode) {
+
+ insert_param(aflcc,
+ "-D__AFL_COVERAGE()=int __afl_selective_coverage = 1;"
+ "extern \"C\" void __afl_coverage_discard();"
+ "extern \"C\" void __afl_coverage_skip();"
+ "extern \"C\" void __afl_coverage_on();"
+ "extern \"C\" void __afl_coverage_off();");
+
+ } else {
+
+ insert_param(aflcc,
+ "-D__AFL_COVERAGE()=int __afl_selective_coverage = 1;"
+ "void __afl_coverage_discard();"
+ "void __afl_coverage_skip();"
+ "void __afl_coverage_on();"
+ "void __afl_coverage_off();");
+
+ }
+
+ insert_param(
+ aflcc,
+ "-D__AFL_COVERAGE_START_OFF()=int __afl_selective_coverage_start_off = "
+ "1;");
+ insert_param(aflcc, "-D__AFL_COVERAGE_ON()=__afl_coverage_on()");
+ insert_param(aflcc, "-D__AFL_COVERAGE_OFF()=__afl_coverage_off()");
+ insert_param(aflcc, "-D__AFL_COVERAGE_DISCARD()=__afl_coverage_discard()");
+ insert_param(aflcc, "-D__AFL_COVERAGE_SKIP()=__afl_coverage_skip()");
+
+}
+
+/*
+ Macro defs for persistent mode. As documented in
+ instrumentation/README.persistent_mode.md, deferred forkserver initialization
+ and persistent mode are not available in afl-gcc and afl-clang.
+*/
+void add_defs_persistent_mode(aflcc_state_t *aflcc) {
+
+ if (aflcc->compiler_mode == GCC || aflcc->compiler_mode == CLANG) return;
+
+ insert_param(aflcc, "-D__AFL_HAVE_MANUAL_CONTROL=1");
+
+ /* When the user tries to use persistent or deferred forkserver modes by
+ appending a single line to the program, we want to reliably inject a
+ signature into the binary (to be picked up by afl-fuzz) and we want
+ to call a function from the runtime .o file. This is unnecessarily
+ painful for three reasons:
+
+ 1) We need to convince the compiler not to optimize out the signature.
+ This is done with __attribute__((used)).
+
+ 2) We need to convince the linker, when called with -Wl,--gc-sections,
+ not to do the same. This is done by forcing an assignment to a
+ 'volatile' pointer.
+
+ 3) We need to declare __afl_persistent_loop() in the global namespace,
+ but doing this within a method in a class is hard - :: and extern "C"
+ are forbidden and __attribute__((alias(...))) doesn't work. Hence the
+ __asm__ aliasing trick.
+
+ */
+
+ insert_param(aflcc,
+ "-D__AFL_FUZZ_INIT()="
+ "int __afl_sharedmem_fuzzing = 1;"
+ "extern unsigned int *__afl_fuzz_len;"
+ "extern unsigned char *__afl_fuzz_ptr;"
+ "unsigned char __afl_fuzz_alt[1048576];"
+ "unsigned char *__afl_fuzz_alt_ptr = __afl_fuzz_alt;");
+
+ insert_param(aflcc,
+ "-D__AFL_FUZZ_TESTCASE_BUF=(__afl_fuzz_ptr ? __afl_fuzz_ptr : "
+ "__afl_fuzz_alt_ptr)");
+
+ insert_param(
+ aflcc,
+ "-D__AFL_FUZZ_TESTCASE_LEN=(__afl_fuzz_ptr ? *__afl_fuzz_len : "
+ "(*__afl_fuzz_len = read(0, __afl_fuzz_alt_ptr, 1048576)) == 0xffffffff "
+ "? 0 : *__afl_fuzz_len)");
+
+ insert_param(
+ aflcc,
+ "-D__AFL_LOOP(_A)="
+ "({ static volatile const char *_B __attribute__((used,unused)); "
+ " _B = (const char*)\"" PERSIST_SIG
+ "\"; "
+ "extern __attribute__((visibility(\"default\"))) int __afl_connected;"
+#ifdef __APPLE__
+ "__attribute__((visibility(\"default\"))) "
+ "int _L(unsigned int) __asm__(\"___afl_persistent_loop\"); "
+#else
+ "__attribute__((visibility(\"default\"))) "
+ "int _L(unsigned int) __asm__(\"__afl_persistent_loop\"); "
+#endif /* ^__APPLE__ */
+ // if afl is connected, we run _A times, else once.
+ "_L(__afl_connected ? _A : 1); })");
+
+ insert_param(
+ aflcc,
+ "-D__AFL_INIT()="
+ "do { static volatile const char *_A __attribute__((used,unused)); "
+ " _A = (const char*)\"" DEFER_SIG
+ "\"; "
+#ifdef __APPLE__
+ "__attribute__((visibility(\"default\"))) "
+ "void _I(void) __asm__(\"___afl_manual_init\"); "
+#else
+ "__attribute__((visibility(\"default\"))) "
+ "void _I(void) __asm__(\"__afl_manual_init\"); "
+#endif /* ^__APPLE__ */
+ "_I(); } while (0)");
+
+}
+
+/*
+ Control macro def of _FORTIFY_SOURCE. It will do nothing
+ if we detect this routine has been called previously, or
+ the macro already here in these existing args.
+*/
+void add_defs_fortify(aflcc_state_t *aflcc, u8 action) {
+
+ if (aflcc->have_fortify) { return; }
+
+ switch (action) {
+
+ case 1:
+ insert_param(aflcc, "-D_FORTIFY_SOURCE=1");
+ break;
+
+ case 2:
+ insert_param(aflcc, "-D_FORTIFY_SOURCE=2");
+ break;
+
+ default: // OFF
+ insert_param(aflcc, "-U_FORTIFY_SOURCE");
+ break;
+
+ }
+
+ aflcc->have_fortify = 1;
+
+}
+
+/* Macro defs of __AFL_LEAK_CHECK, __AFL_LSAN_ON and __AFL_LSAN_OFF */
+void add_defs_lsan_ctrl(aflcc_state_t *aflcc) {
+
+ insert_param(aflcc, "-includesanitizer/lsan_interface.h");
+ insert_param(
+ aflcc,
+ "-D__AFL_LEAK_CHECK()={if(__lsan_do_recoverable_leak_check() > 0) "
+ "_exit(23); }");
+ insert_param(aflcc, "-D__AFL_LSAN_OFF()=__lsan_disable();");
+ insert_param(aflcc, "-D__AFL_LSAN_ON()=__lsan_enable();");
+
+}
+
+/** Macro defs for the preprocessor -----END----- **/
+
+/** About -fsanitize -----BEGIN----- **/
+
+/* For input "-fsanitize=...", it:
+
+ 1. may have various OOB traps :) if ... doesn't contain ',' or
+ the input has bad syntax such as "-fsantiz=,"
+ 2. strips any fuzzer* in ... and writes back (may result in "-fsanitize=")
+ 3. rets 1 if exactly "fuzzer" found, otherwise rets 0
+*/
+static u8 fsanitize_fuzzer_comma(char *string) {
+
+ u8 detect_single_fuzzer = 0;
char *p, *ptr = string + strlen("-fsanitize=");
- char *new = malloc(strlen(string) + 1);
- char *tmp = malloc(strlen(ptr));
+ // ck_alloc will check alloc failure
+ char *new = ck_alloc(strlen(string) + 1);
+ char *tmp = ck_alloc(strlen(ptr) + 1);
u32 count = 0, len, ende = 0;
- if (!new || !tmp) { FATAL("could not acquire memory"); }
strcpy(new, "-fsanitize=");
do {
@@ -345,7 +1707,7 @@
u32 copy = 1;
if (!strcmp(tmp, "fuzzer")) {
- need_aflpplib = 1;
+ detect_single_fuzzer = 1;
copy = 0;
} else if (!strncmp(tmp, "fuzzer", 6)) {
@@ -366,1115 +1728,708 @@
} else {
- ptr++; /*fprintf(stderr, "NO!\n"); */
+ ptr++;
}
} while (!ende);
strcpy(string, new);
- // fprintf(stderr, "string: %s\n", string);
- // fprintf(stderr, "new: %s\n", new);
+
+ ck_free(tmp);
+ ck_free(new);
+
+ return detect_single_fuzzer;
}
-static u8 fortify_set = 0, asan_set = 0, x_set = 0, bit_mode = 0,
- shared_linking = 0, preprocessor_only = 0, have_unroll = 0,
- have_o = 0, have_pic = 0, have_c = 0, partial_linking = 0,
- non_dash = 0;
+/*
+ Parse and process possible -fsanitize related args, return PARAM_MISS
+ if nothing matched. We have 3 main tasks here for these args:
+ - Check which one of those sanitizers present here.
+ - Check if libfuzzer present. We need to block the request of enable
+ libfuzzer, and link harness with our libAFLDriver.a later.
+ - Check if SanCov allow/denylist options present. We need to try switching
+ to LLVMNATIVE instead of using our optimized PCGUARD anyway. If we
+ can't make it finally for various reasons, just drop these options.
+*/
+param_st parse_fsanitize(aflcc_state_t *aflcc, u8 *cur_argv, u8 scan) {
-static void process_params(u32 argc, char **argv) {
+ param_st final_ = PARAM_MISS;
- if (cc_par_cnt + argc >= 1024) { FATAL("Too many command line parameters"); }
+// MACRO START
+#define HAVE_SANITIZER_SCAN_KEEP(v, k) \
+ do { \
+ \
+ if (strstr(cur_argv, "=" STRINGIFY(k)) || \
+ strstr(cur_argv, "," STRINGIFY(k))) { \
+ \
+ if (scan) { \
+ \
+ aflcc->have_##v = 1; \
+ final_ = PARAM_SCAN; \
+ \
+ } else { \
+ \
+ final_ = PARAM_KEEP; \
+ \
+ } \
+ \
+ } \
+ \
+ } while (0)
- if (lto_mode && argc > 1) {
+ // MACRO END
- u32 idx;
- for (idx = 1; idx < argc; idx++) {
+ if (!strncmp(cur_argv, "-fsanitize=", strlen("-fsanitize="))) {
- if (!strncasecmp(argv[idx], "-fpic", 5)) have_pic = 1;
-
- }
+ HAVE_SANITIZER_SCAN_KEEP(asan, address);
+ HAVE_SANITIZER_SCAN_KEEP(msan, memory);
+ HAVE_SANITIZER_SCAN_KEEP(ubsan, undefined);
+ HAVE_SANITIZER_SCAN_KEEP(tsan, thread);
+ HAVE_SANITIZER_SCAN_KEEP(lsan, leak);
+ HAVE_SANITIZER_SCAN_KEEP(cfisan, cfi);
}
- // for (u32 x = 0; x < argc; ++x) fprintf(stderr, "[%u] %s\n", x, argv[x]);
+#undef HAVE_SANITIZER_SCAN_KEEP
- /* Process the argument list. */
+ // We can't use a "else if" there, because some of the following
+ // matching rules overlap with those in the if-statement above.
+ if (!strcmp(cur_argv, "-fsanitize=fuzzer")) {
- u8 skip_next = 0;
- while (--argc) {
+ if (scan) {
- u8 *cur = *(++argv);
-
- if (skip_next) {
-
- skip_next = 0;
- continue;
-
- }
-
- if (cur[0] != '-') { non_dash = 1; }
- if (!strncmp(cur, "--afl", 5)) continue;
-
- if (lto_mode && !strncmp(cur, "-flto=thin", 10)) {
-
- FATAL(
- "afl-clang-lto cannot work with -flto=thin. Switch to -flto=full or "
- "use afl-clang-fast!");
-
- }
-
- if (lto_mode && !strncmp(cur, "-fuse-ld=", 9)) continue;
- if (lto_mode && !strncmp(cur, "--ld-path=", 10)) continue;
- if (!strncmp(cur, "-fno-unroll", 11)) continue;
- if (strstr(cur, "afl-compiler-rt") || strstr(cur, "afl-llvm-rt")) continue;
- if (!strcmp(cur, "-Wl,-z,defs") || !strcmp(cur, "-Wl,--no-undefined") ||
- !strcmp(cur, "--no-undefined")) {
-
- continue;
-
- }
-
- if (compiler_mode == GCC_PLUGIN && !strcmp(cur, "-pipe")) { continue; }
-
- if (!strcmp(cur, "-z") || !strcmp(cur, "-Wl,-z")) {
-
- u8 *param = *(argv + 1);
- if (!strcmp(param, "defs") || !strcmp(param, "-Wl,defs")) {
-
- skip_next = 1;
- continue;
-
- }
-
- }
-
- if ((compiler_mode == GCC || compiler_mode == GCC_PLUGIN) &&
- !strncmp(cur, "-stdlib=", 8)) {
-
- if (!be_quiet) { WARNF("Found '%s' - stripping!", cur); }
- continue;
-
- }
-
- if (!strncmp(cur, "-fsanitize-coverage-", 20) && strstr(cur, "list=")) {
-
- have_instr_list = 1;
-
- }
-
- if (!strncmp(cur, "-fsanitize=", strlen("-fsanitize=")) &&
- strchr(cur, ',')) {
-
- parse_fsanitize(cur);
- if (!cur || strlen(cur) <= strlen("-fsanitize=")) { continue; }
-
- } else if ((!strncmp(cur, "-fsanitize=fuzzer-",
-
- strlen("-fsanitize=fuzzer-")) ||
- !strncmp(cur, "-fsanitize-coverage",
- strlen("-fsanitize-coverage"))) &&
- (strncmp(cur, "sanitize-coverage-allow",
- strlen("sanitize-coverage-allow")) &&
- strncmp(cur, "sanitize-coverage-deny",
- strlen("sanitize-coverage-deny")) &&
- instrument_mode != INSTRUMENT_LLVMNATIVE)) {
-
- if (!be_quiet) { WARNF("Found '%s' - stripping!", cur); }
- continue;
-
- }
-
- if (need_aflpplib || !strcmp(cur, "-fsanitize=fuzzer")) {
-
- u8 *afllib = find_object("libAFLDriver.a", argv[0]);
-
- if (!be_quiet) {
-
- OKF("Found '-fsanitize=fuzzer', replacing with libAFLDriver.a");
-
- }
-
- if (!afllib) {
-
- if (!be_quiet) {
-
- WARNF(
- "Cannot find 'libAFLDriver.a' to replace '-fsanitize=fuzzer' in "
- "the flags - this will fail!");
-
- }
-
- } else {
-
- cc_params[cc_par_cnt++] = afllib;
-
-#ifdef __APPLE__
- cc_params[cc_par_cnt++] = "-undefined";
- cc_params[cc_par_cnt++] = "dynamic_lookup";
-#endif
-
- }
-
- if (need_aflpplib) {
-
- need_aflpplib = 0;
-
- } else {
-
- continue;
-
- }
-
- }
-
- if (!strcmp(cur, "-m32")) bit_mode = 32;
- if (!strcmp(cur, "armv7a-linux-androideabi")) bit_mode = 32;
- if (!strcmp(cur, "-m64")) bit_mode = 64;
-
- if (!strcmp(cur, "-fsanitize=address") || !strcmp(cur, "-fsanitize=memory"))
- asan_set = 1;
-
- if (strstr(cur, "FORTIFY_SOURCE")) fortify_set = 1;
-
- if (!strcmp(cur, "-x")) x_set = 1;
- if (!strcmp(cur, "-E")) preprocessor_only = 1;
- if (!strcmp(cur, "-shared")) shared_linking = 1;
- if (!strcmp(cur, "-dynamiclib")) shared_linking = 1;
- if (!strcmp(cur, "--target=wasm32-wasi")) passthrough = 1;
- if (!strcmp(cur, "-Wl,-r")) partial_linking = 1;
- if (!strcmp(cur, "-Wl,-i")) partial_linking = 1;
- if (!strcmp(cur, "-Wl,--relocatable")) partial_linking = 1;
- if (!strcmp(cur, "-r")) partial_linking = 1;
- if (!strcmp(cur, "--relocatable")) partial_linking = 1;
- if (!strcmp(cur, "-c")) have_c = 1;
-
- if (!strncmp(cur, "-O", 2)) have_o = 1;
- if (!strncmp(cur, "-funroll-loop", 13)) have_unroll = 1;
-
- if (*cur == '@') {
-
- // response file support.
- // we have two choices - move everything to the command line or
- // rewrite the response files to temporary files and delete them
- // afterwards. We choose the first for easiness.
- // We do *not* support quotes in the rsp files to cope with spaces in
- // filenames etc! If you need that then send a patch!
- u8 *filename = cur + 1;
- if (debug) { DEBUGF("response file=%s\n", filename); }
- FILE *f = fopen(filename, "r");
- struct stat st;
-
- // Check not found or empty? let the compiler complain if so.
- if (!f || fstat(fileno(f), &st) < 0 || st.st_size < 1) {
-
- cc_params[cc_par_cnt++] = cur;
- continue;
-
- }
-
- u8 *tmpbuf = malloc(st.st_size + 2), *ptr;
- char **args = malloc(sizeof(char *) * (st.st_size >> 1));
- int count = 1, cont = 0, cont_act = 0;
-
- while (fgets(tmpbuf, st.st_size + 1, f)) {
-
- ptr = tmpbuf;
- // fprintf(stderr, "1: %s\n", ptr);
- // no leading whitespace
- while (isspace(*ptr)) {
-
- ++ptr;
- cont_act = 0;
-
- }
-
- // no comments, no empty lines
- if (*ptr == '#' || *ptr == '\n' || !*ptr) { continue; }
- // remove LF
- if (ptr[strlen(ptr) - 1] == '\n') { ptr[strlen(ptr) - 1] = 0; }
- // remove CR
- if (*ptr && ptr[strlen(ptr) - 1] == '\r') { ptr[strlen(ptr) - 1] = 0; }
- // handle \ at end of line
- if (*ptr && ptr[strlen(ptr) - 1] == '\\') {
-
- cont = 1;
- ptr[strlen(ptr) - 1] = 0;
-
- }
-
- // fprintf(stderr, "2: %s\n", ptr);
-
- // remove whitespace at end
- while (*ptr && isspace(ptr[strlen(ptr) - 1])) {
-
- ptr[strlen(ptr) - 1] = 0;
- cont = 0;
-
- }
-
- // fprintf(stderr, "3: %s\n", ptr);
- if (*ptr) {
-
- do {
-
- u8 *value = ptr;
- while (*ptr && !isspace(*ptr)) {
-
- ++ptr;
-
- }
-
- while (*ptr && isspace(*ptr)) {
-
- *ptr++ = 0;
-
- }
-
- if (cont_act) {
-
- u32 len = strlen(args[count - 1]) + strlen(value) + 1;
- u8 *tmp = malloc(len);
- snprintf(tmp, len, "%s%s", args[count - 1], value);
- free(args[count - 1]);
- args[count - 1] = tmp;
- cont_act = 0;
-
- } else {
-
- args[count++] = strdup(value);
-
- }
-
- } while (*ptr);
-
- }
-
- if (cont) {
-
- cont_act = 1;
- cont = 0;
-
- }
-
- }
-
- if (count) { process_params(count, args); }
-
- // we cannot free args[]
- free(tmpbuf);
-
- continue;
-
- }
-
- cc_params[cc_par_cnt++] = cur;
-
- }
-
-}
-
-/* Copy argv to cc_params, making the necessary edits. */
-
-static void edit_params(u32 argc, char **argv, char **envp) {
-
- cc_params = ck_alloc(1024 * sizeof(u8 *));
-
- if (lto_mode) {
-
- if (lto_flag[0] != '-')
- FATAL(
- "Using afl-clang-lto is not possible because Makefile magic did not "
- "identify the correct -flto flag");
- else
- compiler_mode = LTO;
-
- }
-
- if (plusplus_mode) {
-
- u8 *alt_cxx = getenv("AFL_CXX");
-
- if (!alt_cxx) {
-
- if (compiler_mode >= GCC_PLUGIN) {
-
- if (compiler_mode == GCC) {
-
- alt_cxx = clang_mode ? "clang++" : "g++";
-
- } else if (compiler_mode == CLANG) {
-
- alt_cxx = "clang++";
-
- } else {
-
- alt_cxx = "g++";
-
- }
-
- } else {
-
- if (USE_BINDIR)
- snprintf(llvm_fullpath, sizeof(llvm_fullpath), "%s/clang++",
- LLVM_BINDIR);
- else
- snprintf(llvm_fullpath, sizeof(llvm_fullpath), CLANGPP_BIN);
- alt_cxx = llvm_fullpath;
-
- }
-
- }
-
- cc_params[0] = alt_cxx;
-
- } else {
-
- u8 *alt_cc = getenv("AFL_CC");
-
- if (!alt_cc) {
-
- if (compiler_mode >= GCC_PLUGIN) {
-
- if (compiler_mode == GCC) {
-
- alt_cc = clang_mode ? "clang" : "gcc";
-
- } else if (compiler_mode == CLANG) {
-
- alt_cc = "clang";
-
- } else {
-
- alt_cc = "gcc";
-
- }
-
- } else {
-
- if (USE_BINDIR)
- snprintf(llvm_fullpath, sizeof(llvm_fullpath), "%s/clang",
- LLVM_BINDIR);
- else
- snprintf(llvm_fullpath, sizeof(llvm_fullpath), "%s", CLANG_BIN);
- alt_cc = llvm_fullpath;
-
- }
-
- }
-
- cc_params[0] = alt_cc;
-
- }
-
- if (compiler_mode == GCC || compiler_mode == CLANG) {
-
- cc_params[cc_par_cnt++] = "-B";
- cc_params[cc_par_cnt++] = obj_path;
-
- if (clang_mode || compiler_mode == CLANG) {
-
- cc_params[cc_par_cnt++] = "-no-integrated-as";
-
- }
-
- }
-
- if (compiler_mode == GCC_PLUGIN) {
-
- char *fplugin_arg;
-
- if (cmplog_mode) {
-
- fplugin_arg =
- alloc_printf("-fplugin=%s/afl-gcc-cmplog-pass.so", obj_path);
- cc_params[cc_par_cnt++] = fplugin_arg;
- fplugin_arg =
- alloc_printf("-fplugin=%s/afl-gcc-cmptrs-pass.so", obj_path);
- cc_params[cc_par_cnt++] = fplugin_arg;
-
- }
-
- fplugin_arg = alloc_printf("-fplugin=%s/afl-gcc-pass.so", obj_path);
- cc_params[cc_par_cnt++] = fplugin_arg;
- cc_params[cc_par_cnt++] = "-fno-if-conversion";
- cc_params[cc_par_cnt++] = "-fno-if-conversion2";
-
- }
-
- if (compiler_mode == LLVM || compiler_mode == LTO) {
-
- cc_params[cc_par_cnt++] = "-Wno-unused-command-line-argument";
-
- if (lto_mode && have_instr_env) {
-
-#if LLVM_MAJOR >= 11 /* use new pass manager */
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] = alloc_printf(
- "-fpass-plugin=%s/afl-llvm-lto-instrumentlist.so", obj_path);
-#else
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/afl-llvm-lto-instrumentlist.so", obj_path);
-#endif
-
- }
-
- if (getenv("AFL_LLVM_DICT2FILE")) {
-
-#if LLVM_MAJOR >= 11 /* use new pass manager */
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] =
- alloc_printf("-fpass-plugin=%s/afl-llvm-dict2file.so", obj_path);
-#else
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/afl-llvm-dict2file.so", obj_path);
-#endif
-
- }
-
- // laf
- if (getenv("LAF_SPLIT_SWITCHES") || getenv("AFL_LLVM_LAF_SPLIT_SWITCHES")) {
-
-#if LLVM_MAJOR >= 11 /* use new pass manager */
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] =
- alloc_printf("-fpass-plugin=%s/split-switches-pass.so", obj_path);
-#else
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/split-switches-pass.so", obj_path);
-#endif
-
- }
-
- if (getenv("LAF_TRANSFORM_COMPARES") ||
- getenv("AFL_LLVM_LAF_TRANSFORM_COMPARES")) {
-
-#if LLVM_MAJOR >= 11 /* use new pass manager */
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] =
- alloc_printf("-fpass-plugin=%s/compare-transform-pass.so", obj_path);
-#else
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/compare-transform-pass.so", obj_path);
-#endif
-
- }
-
- if (getenv("LAF_SPLIT_COMPARES") || getenv("AFL_LLVM_LAF_SPLIT_COMPARES") ||
- getenv("AFL_LLVM_LAF_SPLIT_FLOATS")) {
-
-#if LLVM_MAJOR >= 11 /* use new pass manager */
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] =
- alloc_printf("-fpass-plugin=%s/split-compares-pass.so", obj_path);
-#else
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/split-compares-pass.so", obj_path);
-#endif
-
- }
-
- // /laf
-
- unsetenv("AFL_LD");
- unsetenv("AFL_LD_CALLER");
-
- if (cmplog_mode) {
-
- cc_params[cc_par_cnt++] = "-fno-inline";
-
-#if LLVM_MAJOR >= 11 /* use new pass manager */
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] =
- alloc_printf("-fpass-plugin=%s/cmplog-switches-pass.so", obj_path);
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] =
- alloc_printf("-fpass-plugin=%s/split-switches-pass.so", obj_path);
-#else
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/cmplog-switches-pass.so", obj_path);
-
- // reuse split switches from laf
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/split-switches-pass.so", obj_path);
-#endif
-
- }
-
- // #if LLVM_MAJOR >= 13
- // // Use the old pass manager in LLVM 14 which the AFL++ passes still
- // use. cc_params[cc_par_cnt++] = "-flegacy-pass-manager";
- // #endif
-
- if (lto_mode && !have_c) {
-
- u8 *ld_path = NULL;
- if (getenv("AFL_REAL_LD")) {
-
- ld_path = strdup(getenv("AFL_REAL_LD"));
-
- } else {
-
- ld_path = strdup(AFL_REAL_LD);
-
- }
-
- if (!ld_path || !*ld_path) {
-
- if (ld_path) {
-
- // Freeing empty string
- free(ld_path);
-
- }
-
- ld_path = strdup("ld.lld");
-
- }
-
- if (!ld_path) { PFATAL("Could not allocate mem for ld_path"); }
-#if defined(AFL_CLANG_LDPATH) && LLVM_MAJOR >= 12
- cc_params[cc_par_cnt++] = alloc_printf("--ld-path=%s", ld_path);
-#else
- cc_params[cc_par_cnt++] = alloc_printf("-fuse-ld=%s", ld_path);
-#endif
- free(ld_path);
-
-#if defined(AFL_CLANG_LDPATH) && LLVM_MAJOR >= 15
- // The NewPM implementation only works fully since LLVM 15.
- cc_params[cc_par_cnt++] = alloc_printf(
- "-Wl,--load-pass-plugin=%s/SanitizerCoverageLTO.so", obj_path);
-#elif defined(AFL_CLANG_LDPATH) && LLVM_MAJOR >= 13
- cc_params[cc_par_cnt++] = "-Wl,--lto-legacy-pass-manager";
- cc_params[cc_par_cnt++] =
- alloc_printf("-Wl,-mllvm=-load=%s/SanitizerCoverageLTO.so", obj_path);
-#else
- cc_params[cc_par_cnt++] = "-fno-experimental-new-pass-manager";
- cc_params[cc_par_cnt++] =
- alloc_printf("-Wl,-mllvm=-load=%s/SanitizerCoverageLTO.so", obj_path);
-#endif
-
- cc_params[cc_par_cnt++] = "-Wl,--allow-multiple-definition";
- cc_params[cc_par_cnt++] = lto_flag;
+ aflcc->need_aflpplib = 1;
+ final_ = PARAM_SCAN;
} else {
- if (instrument_mode == INSTRUMENT_PCGUARD) {
+ final_ = PARAM_DROP;
+
+ }
+
+ } else if (!strncmp(cur_argv, "-fsanitize=", strlen("-fsanitize=")) &&
+
+ strchr(cur_argv, ',') &&
+ !strstr(cur_argv, "=,")) { // avoid OOB errors
+
+ if (scan) {
+
+ u8 *cur_argv_ = ck_strdup(cur_argv);
+
+ if (fsanitize_fuzzer_comma(cur_argv_)) {
+
+ aflcc->need_aflpplib = 1;
+ final_ = PARAM_SCAN;
+
+ }
+
+ ck_free(cur_argv_);
+
+ } else {
+
+ fsanitize_fuzzer_comma(cur_argv);
+ if (!cur_argv || strlen(cur_argv) <= strlen("-fsanitize="))
+ final_ = PARAM_DROP; // this means it only has "fuzzer" previously.
+
+ }
+
+ } else if (!strncmp(cur_argv, "-fsanitize-coverage-", 20) &&
+
+ strstr(cur_argv, "list=")) {
+
+ if (scan) {
+
+ aflcc->have_instr_list = 1;
+ final_ = PARAM_SCAN;
+
+ } else {
+
+ if (aflcc->instrument_mode != INSTRUMENT_LLVMNATIVE) {
+
+ if (!be_quiet) { WARNF("Found '%s' - stripping!", cur_argv); }
+ final_ = PARAM_DROP;
+
+ } else {
+
+ final_ = PARAM_KEEP;
+
+ }
+
+ }
+
+ }
+
+ if (final_ == PARAM_KEEP) insert_param(aflcc, cur_argv);
+
+ return final_;
+
+}
+
+/*
+ Add params for sanitizers. Here we need to consider:
+ - Use static runtime for asan, as much as possible.
+ - ASAN, MSAN, AFL_HARDEN are mutually exclusive.
+ - Add options if not found there, on request of AFL_USE_ASAN, AFL_USE_MSAN,
+ etc.
+ - Update have_* so that functions called after this can have correct context.
+ However this also means any functions called before should NOT depend on
+ these have_*, otherwise they may not work as expected.
+*/
+void add_sanitizers(aflcc_state_t *aflcc, char **envp) {
+
+ if (getenv("AFL_USE_ASAN") || aflcc->have_asan) {
+
+ if (getenv("AFL_USE_MSAN") || aflcc->have_msan)
+ FATAL("ASAN and MSAN are mutually exclusive");
+
+ if (getenv("AFL_HARDEN"))
+ FATAL("ASAN and AFL_HARDEN are mutually exclusive");
+
+ if (aflcc->compiler_mode == GCC_PLUGIN && !aflcc->have_staticasan) {
+
+ insert_param(aflcc, "-static-libasan");
+
+ }
+
+ add_defs_fortify(aflcc, 0);
+ if (!aflcc->have_asan) { insert_param(aflcc, "-fsanitize=address"); }
+ aflcc->have_asan = 1;
+
+ } else if (getenv("AFL_USE_MSAN") || aflcc->have_msan) {
+
+ if (getenv("AFL_USE_ASAN") || aflcc->have_asan)
+ FATAL("ASAN and MSAN are mutually exclusive");
+
+ if (getenv("AFL_HARDEN"))
+ FATAL("MSAN and AFL_HARDEN are mutually exclusive");
+
+ add_defs_fortify(aflcc, 0);
+ if (!aflcc->have_msan) { insert_param(aflcc, "-fsanitize=memory"); }
+ aflcc->have_msan = 1;
+
+ }
+
+ if (getenv("AFL_USE_UBSAN") || aflcc->have_ubsan) {
+
+ if (!aflcc->have_ubsan) {
+
+ insert_param(aflcc, "-fsanitize=undefined");
+ insert_param(aflcc, "-fsanitize-undefined-trap-on-error");
+ insert_param(aflcc, "-fno-sanitize-recover=all");
+
+ }
+
+ if (!aflcc->have_fp) {
+
+ insert_param(aflcc, "-fno-omit-frame-pointer");
+ aflcc->have_fp = 1;
+
+ }
+
+ aflcc->have_ubsan = 1;
+
+ }
+
+ if (getenv("AFL_USE_TSAN") || aflcc->have_tsan) {
+
+ if (!aflcc->have_fp) {
+
+ insert_param(aflcc, "-fno-omit-frame-pointer");
+ aflcc->have_fp = 1;
+
+ }
+
+ if (!aflcc->have_tsan) { insert_param(aflcc, "-fsanitize=thread"); }
+ aflcc->have_tsan = 1;
+
+ }
+
+ if (getenv("AFL_USE_LSAN") && !aflcc->have_lsan) {
+
+ insert_param(aflcc, "-fsanitize=leak");
+ add_defs_lsan_ctrl(aflcc);
+ aflcc->have_lsan = 1;
+
+ }
+
+ if (getenv("AFL_USE_CFISAN") || aflcc->have_cfisan) {
+
+ if (aflcc->compiler_mode == GCC_PLUGIN || aflcc->compiler_mode == GCC) {
+
+ if (!aflcc->have_fcf) { insert_param(aflcc, "-fcf-protection=full"); }
+
+ } else {
+
+ if (!aflcc->lto_mode && !aflcc->have_flto) {
+
+ uint32_t i = 0, found = 0;
+ while (envp[i] != NULL && !found) {
+
+ if (strncmp("-flto", envp[i++], 5) == 0) found = 1;
+
+ }
+
+ if (!found) { insert_param(aflcc, "-flto"); }
+ aflcc->have_flto = 1;
+
+ }
+
+ if (!aflcc->have_cfisan) { insert_param(aflcc, "-fsanitize=cfi"); }
+
+ if (!aflcc->have_hidden) {
+
+ insert_param(aflcc, "-fvisibility=hidden");
+ aflcc->have_hidden = 1;
+
+ }
+
+ aflcc->have_cfisan = 1;
+
+ }
+
+ }
+
+}
+
+/* Add params to enable LLVM SanCov, the native PCGUARD */
+void add_native_pcguard(aflcc_state_t *aflcc) {
+
+ /* If there is a rust ASan runtime on the command line, it is likely we're
+ * linking from rust and adding native flags requiring the sanitizer runtime
+ * will trigger native clang to add yet another runtime, causing linker
+ * errors. For now we shouldn't add instrumentation here, we're linking
+ * anyway.
+ */
+ if (aflcc->have_rust_asanrt) { return; }
+
+ /* If llvm-config doesn't figure out LLVM_MAJOR, just
+ go on anyway and let compiler complain if doesn't work. */
+
+#if LLVM_MAJOR > 0 && LLVM_MAJOR < 6
+ FATAL("pcguard instrumentation with pc-table requires LLVM 6.0.1+");
+#else
+ #if LLVM_MAJOR == 0
+ WARNF(
+ "pcguard instrumentation with pc-table requires LLVM 6.0.1+"
+ " otherwise the compiler will fail");
+ #endif
+ if (aflcc->instrument_opt_mode & INSTRUMENT_OPT_CODECOV) {
+
+ insert_param(aflcc,
+ "-fsanitize-coverage=trace-pc-guard,bb,no-prune,pc-table");
+
+ } else {
+
+ insert_param(aflcc, "-fsanitize-coverage=trace-pc-guard,pc-table");
+
+ }
+
+#endif
+
+}
+
+/*
+ Add params to launch our optimized PCGUARD on request.
+ It will fallback to use the native PCGUARD in some cases. If so, plz
+ bear in mind that instrument_mode will be set to INSTRUMENT_LLVMNATIVE.
+*/
+void add_optimized_pcguard(aflcc_state_t *aflcc) {
#if LLVM_MAJOR >= 13
#if defined __ANDROID__ || ANDROID
- cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard";
- instrument_mode = INSTRUMENT_LLVMNATIVE;
+
+ insert_param(aflcc, "-fsanitize-coverage=trace-pc-guard");
+ aflcc->instrument_mode = INSTRUMENT_LLVMNATIVE;
+
#else
- if (have_instr_list) {
- if (!be_quiet)
- SAYF(
- "Using unoptimized trace-pc-guard, due usage of "
- "-fsanitize-coverage-allow/denylist, you can use "
- "AFL_LLVM_ALLOWLIST/AFL_LLMV_DENYLIST instead.\n");
- cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard";
- instrument_mode = INSTRUMENT_LLVMNATIVE;
+ if (aflcc->have_instr_list) {
- } else {
+ if (!be_quiet)
+ SAYF(
+ "Using unoptimized trace-pc-guard, due usage of "
+ "-fsanitize-coverage-allow/denylist, you can use "
+ "AFL_LLVM_ALLOWLIST/AFL_LLVM_DENYLIST instead.\n");
- #if LLVM_MAJOR >= 13 /* use new pass manager */
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] = alloc_printf(
- "-fpass-plugin=%s/SanitizerCoveragePCGUARD.so", obj_path);
- #else
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/SanitizerCoveragePCGUARD.so", obj_path);
- #endif
-
- }
-
- #endif
-#else
- #if LLVM_MAJOR >= 4
- if (!be_quiet)
- SAYF(
- "Using unoptimized trace-pc-guard, upgrade to LLVM 13+ for "
- "enhanced version.\n");
- cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard";
- instrument_mode = INSTRUMENT_LLVMNATIVE;
- #else
- FATAL("pcguard instrumentation requires LLVM 4.0.1+");
- #endif
-#endif
-
- } else if (instrument_mode == INSTRUMENT_LLVMNATIVE) {
-
-#if LLVM_MAJOR >= 4
- if (instrument_opt_mode & INSTRUMENT_OPT_CODECOV) {
-
- #if LLVM_MAJOR >= 6
- cc_params[cc_par_cnt++] =
- "-fsanitize-coverage=trace-pc-guard,bb,no-prune,pc-table";
- #else
- FATAL("pcguard instrumentation with pc-table requires LLVM 6.0.1+");
- #endif
-
- } else {
-
- cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard";
-
- }
-
-#else
- FATAL("pcguard instrumentation requires LLVM 4.0.1+");
-#endif
-
- } else {
-
-#if LLVM_MAJOR >= 11 /* use new pass manager */
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] =
- alloc_printf("-fpass-plugin=%s/afl-llvm-pass.so", obj_path);
-#else
-
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = alloc_printf("%s/afl-llvm-pass.so", obj_path);
-#endif
-
- }
-
- }
-
- if (cmplog_mode) {
-
-#if LLVM_MAJOR >= 11
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] = alloc_printf(
- "-fpass-plugin=%s/cmplog-instructions-pass.so", obj_path);
- #if LLVM_MAJOR < 16
- cc_params[cc_par_cnt++] = "-fexperimental-new-pass-manager";
- #endif
- cc_params[cc_par_cnt++] =
- alloc_printf("-fpass-plugin=%s/cmplog-routines-pass.so", obj_path);
-#else
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/cmplog-instructions-pass.so", obj_path);
-
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] = "-load";
- cc_params[cc_par_cnt++] = "-Xclang";
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/cmplog-routines-pass.so", obj_path);
-#endif
-
- }
-
- // cc_params[cc_par_cnt++] = "-Qunused-arguments";
-
- if (lto_mode && argc > 1) {
-
- u32 idx;
- for (idx = 1; idx < argc; idx++) {
-
- if (!strncasecmp(argv[idx], "-fpic", 5)) have_pic = 1;
-
- }
-
- }
-
- }
-
- /* Inspect the command line parameters. */
-
- process_params(argc, argv);
-
- if (!have_pic) { cc_params[cc_par_cnt++] = "-fPIC"; }
-
- // in case LLVM is installed not via a package manager or "make install"
- // e.g. compiled download or compiled from github then its ./lib directory
- // might not be in the search path. Add it if so.
- u8 *libdir = strdup(LLVM_LIBDIR);
- if (plusplus_mode && strlen(libdir) && strncmp(libdir, "/usr", 4) &&
- strncmp(libdir, "/lib", 4)) {
-
- cc_params[cc_par_cnt++] = "-Wl,-rpath";
- cc_params[cc_par_cnt++] = libdir;
+ insert_param(aflcc, "-fsanitize-coverage=trace-pc-guard");
+ aflcc->instrument_mode = INSTRUMENT_LLVMNATIVE;
} else {
- free(libdir);
+ /* Since LLVM_MAJOR >= 13 we use new pass manager */
+ #if LLVM_MAJOR < 16
+ insert_param(aflcc, "-fexperimental-new-pass-manager");
+ #endif
+ insert_object(aflcc, "SanitizerCoveragePCGUARD.so", "-fpass-plugin=%s", 0);
}
- if (getenv("AFL_HARDEN")) {
+ #endif // defined __ANDROID__ || ANDROID
+#else // LLVM_MAJOR < 13
+ #if LLVM_MAJOR >= 4
- cc_params[cc_par_cnt++] = "-fstack-protector-all";
+ if (!be_quiet)
+ SAYF(
+ "Using unoptimized trace-pc-guard, upgrade to LLVM 13+ for "
+ "enhanced version.\n");
+ insert_param(aflcc, "-fsanitize-coverage=trace-pc-guard");
+ aflcc->instrument_mode = INSTRUMENT_LLVMNATIVE;
- if (!fortify_set) cc_params[cc_par_cnt++] = "-D_FORTIFY_SOURCE=2";
+ #else
+
+ FATAL("pcguard instrumentation requires LLVM 4.0.1+");
+
+ #endif
+#endif
+
+}
+
+/** About -fsanitize -----END----- **/
+
+/** Linking behaviors -----BEGIN----- **/
+
+/*
+ Parse and process possible linking stage related args,
+ return PARAM_MISS if nothing matched.
+*/
+param_st parse_linking_params(aflcc_state_t *aflcc, u8 *cur_argv, u8 scan,
+ u8 *skip_next, char **argv) {
+
+ if (aflcc->lto_mode && !strncmp(cur_argv, "-flto=thin", 10)) {
+
+ FATAL(
+ "afl-clang-lto cannot work with -flto=thin. Switch to -flto=full or "
+ "use afl-clang-fast!");
}
- if (!asan_set) {
+ param_st final_ = PARAM_MISS;
- if (getenv("AFL_USE_ASAN")) {
+ if (!strcmp(cur_argv, "-shared") || !strcmp(cur_argv, "-dynamiclib")) {
- if (getenv("AFL_USE_MSAN")) FATAL("ASAN and MSAN are mutually exclusive");
+ if (scan) {
- if (getenv("AFL_HARDEN"))
- FATAL("ASAN and AFL_HARDEN are mutually exclusive");
-
- cc_params[cc_par_cnt++] = "-U_FORTIFY_SOURCE";
- cc_params[cc_par_cnt++] = "-fsanitize=address";
-
- } else if (getenv("AFL_USE_MSAN")) {
-
- if (getenv("AFL_USE_ASAN")) FATAL("ASAN and MSAN are mutually exclusive");
-
- if (getenv("AFL_HARDEN"))
- FATAL("MSAN and AFL_HARDEN are mutually exclusive");
-
- cc_params[cc_par_cnt++] = "-U_FORTIFY_SOURCE";
- cc_params[cc_par_cnt++] = "-fsanitize=memory";
-
- }
-
- }
-
- if (getenv("AFL_USE_UBSAN")) {
-
- cc_params[cc_par_cnt++] = "-fsanitize=undefined";
- cc_params[cc_par_cnt++] = "-fsanitize-undefined-trap-on-error";
- cc_params[cc_par_cnt++] = "-fno-sanitize-recover=all";
- cc_params[cc_par_cnt++] = "-fno-omit-frame-pointer";
-
- }
-
- if (getenv("AFL_USE_TSAN")) {
-
- cc_params[cc_par_cnt++] = "-fsanitize=thread";
- cc_params[cc_par_cnt++] = "-fno-omit-frame-pointer";
-
- }
-
- if (getenv("AFL_USE_LSAN")) {
-
- cc_params[cc_par_cnt++] = "-fsanitize=leak";
- cc_params[cc_par_cnt++] = "-includesanitizer/lsan_interface.h";
- cc_params[cc_par_cnt++] =
- "-D__AFL_LEAK_CHECK()={if(__lsan_do_recoverable_leak_check() > 0) "
- "_exit(23); }";
- cc_params[cc_par_cnt++] = "-D__AFL_LSAN_OFF()=__lsan_disable();";
- cc_params[cc_par_cnt++] = "-D__AFL_LSAN_ON()=__lsan_enable();";
-
- }
-
- if (getenv("AFL_USE_CFISAN")) {
-
- if (compiler_mode == GCC_PLUGIN || compiler_mode == GCC) {
-
- cc_params[cc_par_cnt++] = "-fcf-protection=full";
+ aflcc->shared_linking = 1;
+ final_ = PARAM_SCAN;
} else {
- if (!lto_mode) {
+ final_ = PARAM_KEEP;
- uint32_t i = 0, found = 0;
- while (envp[i] != NULL && !found)
- if (strncmp("-flto", envp[i++], 5) == 0) found = 1;
- if (!found) cc_params[cc_par_cnt++] = "-flto";
+ }
+
+ } else if (!strcmp(cur_argv, "-Wl,-r") || !strcmp(cur_argv, "-Wl,-i") ||
+
+ !strcmp(cur_argv, "-Wl,--relocatable") ||
+ !strcmp(cur_argv, "-r") || !strcmp(cur_argv, "--relocatable")) {
+
+ if (scan) {
+
+ aflcc->partial_linking = 1;
+ final_ = PARAM_SCAN;
+
+ } else {
+
+ final_ = PARAM_KEEP;
+
+ }
+
+ } else if (!strncmp(cur_argv, "-fuse-ld=", 9) ||
+
+ !strncmp(cur_argv, "--ld-path=", 10)) {
+
+ if (scan) {
+
+ final_ = PARAM_SCAN;
+
+ } else {
+
+ if (aflcc->lto_mode)
+ final_ = PARAM_DROP;
+ else
+ final_ = PARAM_KEEP;
+
+ }
+
+ } else if (!strcmp(cur_argv, "-Wl,-z,defs") ||
+
+ !strcmp(cur_argv, "-Wl,--no-undefined") ||
+ !strcmp(cur_argv, "-Wl,-no-undefined") ||
+ !strcmp(cur_argv, "--no-undefined") ||
+ strstr(cur_argv, "afl-compiler-rt") ||
+ strstr(cur_argv, "afl-llvm-rt")) {
+
+ if (scan) {
+
+ final_ = PARAM_SCAN;
+
+ } else {
+
+ final_ = PARAM_DROP;
+
+ }
+
+ } else if (!strcmp(cur_argv, "-z") || !strcmp(cur_argv, "-Wl,-z")) {
+
+ u8 *param = *(argv + 1);
+ if (param && (!strcmp(param, "defs") || !strcmp(param, "-Wl,defs"))) {
+
+ *skip_next = 1;
+
+ if (scan) {
+
+ final_ = PARAM_SCAN;
+
+ } else {
+
+ final_ = PARAM_DROP;
}
- cc_params[cc_par_cnt++] = "-fsanitize=cfi";
- cc_params[cc_par_cnt++] = "-fvisibility=hidden";
-
}
}
- if (!getenv("AFL_DONT_OPTIMIZE")) {
+ // Try to warn user for some unsupported cases
+ if (scan && final_ == PARAM_MISS) {
- cc_params[cc_par_cnt++] = "-g";
- if (!have_o) cc_params[cc_par_cnt++] = "-O3";
- if (!have_unroll) cc_params[cc_par_cnt++] = "-funroll-loops";
- // if (strlen(march_opt) > 1 && march_opt[0] == '-')
- // cc_params[cc_par_cnt++] = march_opt;
+ u8 *ptr_ = NULL;
+
+ if (!strcmp(cur_argv, "-Xlinker") && (ptr_ = *(argv + 1))) {
+
+ if (!strcmp(ptr_, "defs")) {
+
+ WARNF("'-Xlinker' 'defs' detected. This may result in a bad link.");
+
+ } else if (strstr(ptr_, "-no-undefined")) {
+
+ WARNF(
+ "'-Xlinker' '%s' detected. The latter option may be dropped and "
+ "result in a bad link.",
+ ptr_);
+
+ }
+
+ } else if (!strncmp(cur_argv, "-Wl,", 4) &&
+
+ (u8 *)strrchr(cur_argv, ',') != (cur_argv + 3)) {
+
+ ptr_ = cur_argv + 4;
+
+ if (strstr(ptr_, "-shared") || strstr(ptr_, "-dynamiclib")) {
+
+ WARNF(
+ "'%s': multiple link options after '-Wl,' may break shared "
+ "linking.",
+ ptr_);
+
+ }
+
+ if (strstr(ptr_, "-r,") || strstr(ptr_, "-i,") || strstr(ptr_, ",-r") ||
+ strstr(ptr_, ",-i") || strstr(ptr_, "--relocatable")) {
+
+ WARNF(
+ "'%s': multiple link options after '-Wl,' may break partial "
+ "linking.",
+ ptr_);
+
+ }
+
+ if (strstr(ptr_, "defs") || strstr(ptr_, "no-undefined")) {
+
+ WARNF(
+ "'%s': multiple link options after '-Wl,' may enable report "
+ "unresolved symbol references and result in a bad link.",
+ ptr_);
+
+ }
+
+ }
}
- if (getenv("AFL_NO_BUILTIN") || getenv("AFL_LLVM_LAF_TRANSFORM_COMPARES") ||
- getenv("LAF_TRANSFORM_COMPARES") || getenv("AFL_LLVM_LAF_ALL") ||
- lto_mode) {
+ if (final_ == PARAM_KEEP) insert_param(aflcc, cur_argv);
- cc_params[cc_par_cnt++] = "-fno-builtin-strcmp";
- cc_params[cc_par_cnt++] = "-fno-builtin-strncmp";
- cc_params[cc_par_cnt++] = "-fno-builtin-strcasecmp";
- cc_params[cc_par_cnt++] = "-fno-builtin-strncasecmp";
- cc_params[cc_par_cnt++] = "-fno-builtin-memcmp";
- cc_params[cc_par_cnt++] = "-fno-builtin-bcmp";
- cc_params[cc_par_cnt++] = "-fno-builtin-strstr";
- cc_params[cc_par_cnt++] = "-fno-builtin-strcasestr";
+ return final_;
- }
+}
-#if defined(USEMMAP) && !defined(__HAIKU__) && !__APPLE__
- if (!have_c) cc_params[cc_par_cnt++] = "-lrt";
-#endif
+/* Add params to specify the linker used in LTO */
+void add_lto_linker(aflcc_state_t *aflcc) {
- cc_params[cc_par_cnt++] = "-D__AFL_COMPILER=1";
- cc_params[cc_par_cnt++] = "-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION=1";
+ unsetenv("AFL_LD");
+ unsetenv("AFL_LD_CALLER");
- /* As documented in instrumentation/README.persistent_mode.md, deferred
- forkserver initialization and persistent mode are not available in afl-gcc
- and afl-clang. */
- if (compiler_mode != GCC && compiler_mode != CLANG) {
+ u8 *ld_path = NULL;
+ if (getenv("AFL_REAL_LD")) {
- cc_params[cc_par_cnt++] = "-D__AFL_HAVE_MANUAL_CONTROL=1";
-
- /* When the user tries to use persistent or deferred forkserver modes by
- appending a single line to the program, we want to reliably inject a
- signature into the binary (to be picked up by afl-fuzz) and we want
- to call a function from the runtime .o file. This is unnecessarily
- painful for three reasons:
-
- 1) We need to convince the compiler not to optimize out the signature.
- This is done with __attribute__((used)).
-
- 2) We need to convince the linker, when called with -Wl,--gc-sections,
- not to do the same. This is done by forcing an assignment to a
- 'volatile' pointer.
-
- 3) We need to declare __afl_persistent_loop() in the global namespace,
- but doing this within a method in a class is hard - :: and extern "C"
- are forbidden and __attribute__((alias(...))) doesn't work. Hence the
- __asm__ aliasing trick.
-
- */
-
- cc_params[cc_par_cnt++] =
- "-D__AFL_FUZZ_INIT()="
- "int __afl_sharedmem_fuzzing = 1;"
- "extern unsigned int *__afl_fuzz_len;"
- "extern unsigned char *__afl_fuzz_ptr;"
- "unsigned char __afl_fuzz_alt[1048576];"
- "unsigned char *__afl_fuzz_alt_ptr = __afl_fuzz_alt;";
-
- }
-
- if (plusplus_mode) {
-
- cc_params[cc_par_cnt++] =
- "-D__AFL_COVERAGE()=int __afl_selective_coverage = 1;"
- "extern \"C\" void __afl_coverage_discard();"
- "extern \"C\" void __afl_coverage_skip();"
- "extern \"C\" void __afl_coverage_on();"
- "extern \"C\" void __afl_coverage_off();";
+ ld_path = strdup(getenv("AFL_REAL_LD"));
} else {
- cc_params[cc_par_cnt++] =
- "-D__AFL_COVERAGE()=int __afl_selective_coverage = 1;"
- "void __afl_coverage_discard();"
- "void __afl_coverage_skip();"
- "void __afl_coverage_on();"
- "void __afl_coverage_off();";
+ ld_path = strdup(AFL_REAL_LD);
}
- cc_params[cc_par_cnt++] =
- "-D__AFL_COVERAGE_START_OFF()=int __afl_selective_coverage_start_off = "
- "1;";
- cc_params[cc_par_cnt++] = "-D__AFL_COVERAGE_ON()=__afl_coverage_on()";
- cc_params[cc_par_cnt++] = "-D__AFL_COVERAGE_OFF()=__afl_coverage_off()";
- cc_params[cc_par_cnt++] =
- "-D__AFL_COVERAGE_DISCARD()=__afl_coverage_discard()";
- cc_params[cc_par_cnt++] = "-D__AFL_COVERAGE_SKIP()=__afl_coverage_skip()";
- cc_params[cc_par_cnt++] =
- "-D__AFL_FUZZ_TESTCASE_BUF=(__afl_fuzz_ptr ? __afl_fuzz_ptr : "
- "__afl_fuzz_alt_ptr)";
- cc_params[cc_par_cnt++] =
- "-D__AFL_FUZZ_TESTCASE_LEN=(__afl_fuzz_ptr ? *__afl_fuzz_len : "
- "(*__afl_fuzz_len = read(0, __afl_fuzz_alt_ptr, 1048576)) == 0xffffffff "
- "? 0 : *__afl_fuzz_len)";
+ if (!ld_path || !*ld_path) {
- if (compiler_mode != GCC && compiler_mode != CLANG) {
+ if (ld_path) {
- cc_params[cc_par_cnt++] =
- "-D__AFL_LOOP(_A)="
- "({ static volatile const char *_B __attribute__((used,unused)); "
- " _B = (const char*)\"" PERSIST_SIG
- "\"; "
- "extern int __afl_connected;"
-#ifdef __APPLE__
- "__attribute__((visibility(\"default\"))) "
- "int _L(unsigned int) __asm__(\"___afl_persistent_loop\"); "
+ // Freeing empty string
+ free(ld_path);
+
+ }
+
+ ld_path = strdup("ld.lld");
+
+ }
+
+ if (!ld_path) { PFATAL("Could not allocate mem for ld_path"); }
+#if defined(AFL_CLANG_LDPATH) && LLVM_MAJOR >= 12
+ insert_param(aflcc, alloc_printf("--ld-path=%s", ld_path));
#else
- "__attribute__((visibility(\"default\"))) "
- "int _L(unsigned int) __asm__(\"__afl_persistent_loop\"); "
-#endif /* ^__APPLE__ */
- // if afl is connected, we run _A times, else once.
- "_L(__afl_connected ? _A : 1); })";
+ insert_param(aflcc, alloc_printf("-fuse-ld=%s", ld_path));
+#endif
+ free(ld_path);
- cc_params[cc_par_cnt++] =
- "-D__AFL_INIT()="
- "do { static volatile const char *_A __attribute__((used,unused)); "
- " _A = (const char*)\"" DEFER_SIG
- "\"; "
-#ifdef __APPLE__
- "__attribute__((visibility(\"default\"))) "
- "void _I(void) __asm__(\"___afl_manual_init\"); "
+}
+
+/* Add params to launch SanitizerCoverageLTO.so when linking */
+void add_lto_passes(aflcc_state_t *aflcc) {
+
+#if defined(AFL_CLANG_LDPATH) && LLVM_MAJOR >= 15
+ // The NewPM implementation only works fully since LLVM 15.
+ insert_object(aflcc, "SanitizerCoverageLTO.so", "-Wl,--load-pass-plugin=%s",
+ 0);
+#elif defined(AFL_CLANG_LDPATH) && LLVM_MAJOR >= 13
+ insert_param(aflcc, "-Wl,--lto-legacy-pass-manager");
+ insert_object(aflcc, "SanitizerCoverageLTO.so", "-Wl,-mllvm=-load=%s", 0);
#else
- "__attribute__((visibility(\"default\"))) "
- "void _I(void) __asm__(\"__afl_manual_init\"); "
-#endif /* ^__APPLE__ */
- "_I(); } while (0)";
+ insert_param(aflcc, "-fno-experimental-new-pass-manager");
+ insert_object(aflcc, "SanitizerCoverageLTO.so", "-Wl,-mllvm=-load=%s", 0);
+#endif
+
+ insert_param(aflcc, "-Wl,--allow-multiple-definition");
+
+}
+
+/* Add params to link with libAFLDriver.a on request */
+static void add_aflpplib(aflcc_state_t *aflcc) {
+
+ if (!aflcc->need_aflpplib) return;
+
+ u8 *afllib = find_object(aflcc, "libAFLDriver.a");
+
+ if (!be_quiet) {
+
+ OKF("Found '-fsanitize=fuzzer', replacing with libAFLDriver.a");
}
- if (x_set) {
+ if (!afllib) {
- cc_params[cc_par_cnt++] = "-x";
- cc_params[cc_par_cnt++] = "none";
+ if (!be_quiet) {
+
+ WARNF(
+ "Cannot find 'libAFLDriver.a' to replace '-fsanitize=fuzzer' in "
+ "the flags - this will fail!");
+
+ }
+
+ } else {
+
+ insert_param(aflcc, afllib);
+
+#ifdef __APPLE__
+ insert_param(aflcc, "-Wl,-undefined");
+ insert_param(aflcc, "dynamic_lookup");
+#endif
}
- // prevent unnecessary build errors
- if (compiler_mode != GCC_PLUGIN && compiler_mode != GCC) {
+}
- cc_params[cc_par_cnt++] = "-Wno-unused-command-line-argument";
+/* Add params to link with runtimes depended by our instrumentation */
+void add_runtime(aflcc_state_t *aflcc) {
- }
-
- if (preprocessor_only || have_c || !non_dash) {
+ if (aflcc->preprocessor_only || aflcc->have_c || !aflcc->non_dash) {
/* In the preprocessor_only case (-E), we are not actually compiling at
all but requesting the compiler to output preprocessed sources only.
We must not add the runtime in this case because the compiler will
simply output its binary content back on stdout, breaking any build
systems that rely on a separate source preprocessing step. */
- cc_params[cc_par_cnt] = NULL;
return;
}
+ if (aflcc->compiler_mode != GCC_PLUGIN && aflcc->compiler_mode != GCC &&
+ !getenv("AFL_LLVM_NO_RPATH")) {
+
+ // in case LLVM is installed not via a package manager or "make install"
+ // e.g. compiled download or compiled from github then its ./lib directory
+ // might not be in the search path. Add it if so.
+ const char *libdir = LLVM_LIBDIR;
+ if (aflcc->plusplus_mode && strlen(libdir) && strncmp(libdir, "/usr", 4) &&
+ strncmp(libdir, "/lib", 4)) {
+
+ u8 *libdir_opt = strdup("-Wl,-rpath=" LLVM_LIBDIR);
+ insert_param(aflcc, libdir_opt);
+
+ }
+
+ }
+
#ifndef __ANDROID__
- if (compiler_mode != GCC && compiler_mode != CLANG) {
+ #define M32_ERR_MSG "-m32 is not supported by your compiler"
+ #define M64_ERR_MSG "-m64 is not supported by your compiler"
- switch (bit_mode) {
+ if (aflcc->compiler_mode != GCC && aflcc->compiler_mode != CLANG) {
+
+ switch (aflcc->bit_mode) {
case 0:
- if (!shared_linking && !partial_linking)
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/afl-compiler-rt.o", obj_path);
- if (lto_mode)
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/afl-llvm-rt-lto.o", obj_path);
+ if (!aflcc->shared_linking && !aflcc->partial_linking)
+ insert_object(aflcc, "afl-compiler-rt.o", 0, 0);
+ if (aflcc->lto_mode) insert_object(aflcc, "afl-llvm-rt-lto.o", 0, 0);
break;
case 32:
- if (!shared_linking && !partial_linking) {
-
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/afl-compiler-rt-32.o", obj_path);
- if (access(cc_params[cc_par_cnt - 1], R_OK))
- FATAL("-m32 is not supported by your compiler");
-
- }
-
- if (lto_mode) {
-
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/afl-llvm-rt-lto-32.o", obj_path);
- if (access(cc_params[cc_par_cnt - 1], R_OK))
- FATAL("-m32 is not supported by your compiler");
-
- }
-
+ if (!aflcc->shared_linking && !aflcc->partial_linking)
+ insert_object(aflcc, "afl-compiler-rt-32.o", 0, M32_ERR_MSG);
+ if (aflcc->lto_mode)
+ insert_object(aflcc, "afl-llvm-rt-lto-32.o", 0, M32_ERR_MSG);
break;
case 64:
- if (!shared_linking && !partial_linking) {
-
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/afl-compiler-rt-64.o", obj_path);
- if (access(cc_params[cc_par_cnt - 1], R_OK))
- FATAL("-m64 is not supported by your compiler");
-
- }
-
- if (lto_mode) {
-
- cc_params[cc_par_cnt++] =
- alloc_printf("%s/afl-llvm-rt-lto-64.o", obj_path);
- if (access(cc_params[cc_par_cnt - 1], R_OK))
- FATAL("-m64 is not supported by your compiler");
-
- }
-
+ if (!aflcc->shared_linking && !aflcc->partial_linking)
+ insert_object(aflcc, "afl-compiler-rt-64.o", 0, M64_ERR_MSG);
+ if (aflcc->lto_mode)
+ insert_object(aflcc, "afl-llvm-rt-lto-64.o", 0, M64_ERR_MSG);
break;
}
+ #if __AFL_CODE_COVERAGE
+ // Required for dladdr used in afl-compiler-rt.o
+ insert_param(aflcc, "-ldl");
+ #endif
+
#if !defined(__APPLE__) && !defined(__sun)
- if (!shared_linking && !partial_linking)
- cc_params[cc_par_cnt++] =
- alloc_printf("-Wl,--dynamic-list=%s/dynamic_list.txt", obj_path);
+ if (!aflcc->shared_linking && !aflcc->partial_linking)
+ insert_object(aflcc, "dynamic_list.txt", "-Wl,--dynamic-list=%s", 0);
#endif
#if defined(__APPLE__)
- if (shared_linking || partial_linking) {
+ if (aflcc->shared_linking || aflcc->partial_linking) {
- cc_params[cc_par_cnt++] = "-Wl,-U";
- cc_params[cc_par_cnt++] = "-Wl,___afl_area_ptr";
- cc_params[cc_par_cnt++] = "-Wl,-U";
- cc_params[cc_par_cnt++] = "-Wl,___sanitizer_cov_trace_pc_guard_init";
+ insert_param(aflcc, "-Wl,-U");
+ insert_param(aflcc, "-Wl,___afl_area_ptr");
+ insert_param(aflcc, "-Wl,-U");
+ insert_param(aflcc, "-Wl,___sanitizer_cov_trace_pc_guard_init");
}
@@ -1482,606 +2437,263 @@
}
- #if defined(USEMMAP) && !defined(__HAIKU__) && !__APPLE__
- cc_params[cc_par_cnt++] = "-lrt";
- #endif
-
#endif
- cc_params[cc_par_cnt] = NULL;
+ add_aflpplib(aflcc);
+
+#if defined(USEMMAP) && !defined(__HAIKU__) && !__APPLE__
+ insert_param(aflcc, "-Wl,-lrt");
+#endif
}
-/* Main entry point */
+/** Linking behaviors -----END----- **/
-int main(int argc, char **argv, char **envp) {
+/** Miscellaneous routines -----BEGIN----- **/
- int i;
- char *callname = argv[0], *ptr = NULL;
+/*
+ Add params to make compiler driver use our afl-as
+ as assembler, required by the vanilla instrumentation.
+*/
+void add_assembler(aflcc_state_t *aflcc) {
- if (getenv("AFL_DEBUG")) {
+ u8 *afl_as = find_object(aflcc, "as");
- debug = 1;
- if (strcmp(getenv("AFL_DEBUG"), "0") == 0) unsetenv("AFL_DEBUG");
+ if (!afl_as) FATAL("Cannot find 'as' (symlink to 'afl-as').");
- } else if (getenv("AFL_QUIET"))
+ u8 *slash = strrchr(afl_as, '/');
+ if (slash) *slash = 0;
- be_quiet = 1;
+ insert_param(aflcc, "-B");
+ insert_param(aflcc, afl_as);
- if (getenv("AFL_LLVM_INSTRUMENT_FILE") || getenv("AFL_LLVM_WHITELIST") ||
- getenv("AFL_LLVM_ALLOWLIST") || getenv("AFL_LLVM_DENYLIST") ||
- getenv("AFL_LLVM_BLOCKLIST")) {
+ if (aflcc->compiler_mode == CLANG) insert_param(aflcc, "-no-integrated-as");
- have_instr_env = 1;
+}
+
+/* Add params to launch the gcc plugins for instrumentation. */
+void add_gcc_plugin(aflcc_state_t *aflcc) {
+
+ if (aflcc->cmplog_mode) {
+
+ insert_object(aflcc, "afl-gcc-cmplog-pass.so", "-fplugin=%s", 0);
+ insert_object(aflcc, "afl-gcc-cmptrs-pass.so", "-fplugin=%s", 0);
}
- if (getenv("AFL_PASSTHROUGH") || getenv("AFL_NOOPT")) {
+ insert_object(aflcc, "afl-gcc-pass.so", "-fplugin=%s", 0);
- passthrough = 1;
- if (!debug) { be_quiet = 1; }
+ insert_param(aflcc, "-fno-if-conversion");
+ insert_param(aflcc, "-fno-if-conversion2");
+
+}
+
+/* Add some miscellaneous params required by our instrumentation. */
+void add_misc_params(aflcc_state_t *aflcc) {
+
+ if (getenv("AFL_NO_BUILTIN") || getenv("AFL_LLVM_LAF_TRANSFORM_COMPARES") ||
+ getenv("AFL_LLVM_LAF_ALL") || getenv("AFL_LLVM_CMPLOG") ||
+ aflcc->lto_mode) {
+
+ insert_param(aflcc, "-fno-builtin-strcmp");
+ insert_param(aflcc, "-fno-builtin-strncmp");
+ insert_param(aflcc, "-fno-builtin-strcasecmp");
+ insert_param(aflcc, "-fno-builtin-strncasecmp");
+ insert_param(aflcc, "-fno-builtin-memcmp");
+ insert_param(aflcc, "-fno-builtin-bcmp");
+ insert_param(aflcc, "-fno-builtin-strstr");
+ insert_param(aflcc, "-fno-builtin-strcasestr");
}
- if ((ptr = strrchr(callname, '/')) != NULL) callname = ptr + 1;
- argvnull = (u8 *)argv[0];
- check_environment_vars(envp);
+ if (!aflcc->have_pic) { insert_param(aflcc, "-fPIC"); }
- if ((ptr = find_object("as", argv[0])) != NULL) {
+ if (getenv("AFL_HARDEN")) {
- have_gcc = 1;
- ck_free(ptr);
+ insert_param(aflcc, "-fstack-protector-all");
+
+ if (!aflcc->fortify_set) add_defs_fortify(aflcc, 2);
}
-#if (LLVM_MAJOR >= 3)
+ if (!getenv("AFL_DONT_OPTIMIZE")) {
- if ((ptr = find_object("SanitizerCoverageLTO.so", argv[0])) != NULL) {
-
- have_lto = 1;
- ck_free(ptr);
+ insert_param(aflcc, "-g");
+ if (!aflcc->have_o) insert_param(aflcc, "-O3");
+ if (!aflcc->have_unroll) insert_param(aflcc, "-funroll-loops");
+ // if (strlen(aflcc->march_opt) > 1 && aflcc->march_opt[0] == '-')
+ // insert_param(aflcc, aflcc->march_opt);
}
- if ((ptr = find_object("cmplog-routines-pass.so", argv[0])) != NULL) {
+ if (aflcc->x_set) {
- have_llvm = 1;
- ck_free(ptr);
+ insert_param(aflcc, "-x");
+ insert_param(aflcc, "none");
}
-#endif
+}
-#ifdef __ANDROID__
- have_llvm = 1;
-#endif
+/*
+ Parse and process a variety of args under our matching rules,
+ return PARAM_MISS if nothing matched.
+*/
+param_st parse_misc_params(aflcc_state_t *aflcc, u8 *cur_argv, u8 scan) {
- if ((ptr = find_object("afl-gcc-pass.so", argv[0])) != NULL) {
+ param_st final_ = PARAM_MISS;
- have_gcc_plugin = 1;
- ck_free(ptr);
+// MACRO START
+#define SCAN_KEEP(dst, src) \
+ do { \
+ \
+ if (scan) { \
+ \
+ dst = src; \
+ final_ = PARAM_SCAN; \
+ \
+ } else { \
+ \
+ final_ = PARAM_KEEP; \
+ \
+ } \
+ \
+ } while (0)
- }
+ // MACRO END
-#if (LLVM_MAJOR >= 3)
+ if (!strncasecmp(cur_argv, "-fpic", 5)) {
- if (strncmp(callname, "afl-clang-fast", 14) == 0) {
+ SCAN_KEEP(aflcc->have_pic, 1);
- compiler_mode = LLVM;
+ } else if (!strcmp(cur_argv, "-m32") ||
- } else if (strncmp(callname, "afl-clang-lto", 13) == 0 ||
+ !strcmp(cur_argv, "armv7a-linux-androideabi")) {
- strncmp(callname, "afl-lto", 7) == 0) {
+ SCAN_KEEP(aflcc->bit_mode, 32);
- compiler_mode = LTO;
+ } else if (!strcmp(cur_argv, "-m64")) {
- } else
+ SCAN_KEEP(aflcc->bit_mode, 64);
-#endif
- if (strncmp(callname, "afl-gcc-fast", 12) == 0 ||
+ } else if (strstr(cur_argv, "FORTIFY_SOURCE")) {
- strncmp(callname, "afl-g++-fast", 12) == 0) {
+ SCAN_KEEP(aflcc->fortify_set, 1);
- compiler_mode = GCC_PLUGIN;
+ } else if (!strcmp(cur_argv, "-x")) {
- } else if (strncmp(callname, "afl-gcc", 7) == 0 ||
+ SCAN_KEEP(aflcc->x_set, 1);
- strncmp(callname, "afl-g++", 7) == 0) {
+ } else if (!strcmp(cur_argv, "-E")) {
- compiler_mode = GCC;
+ SCAN_KEEP(aflcc->preprocessor_only, 1);
- } else if (strcmp(callname, "afl-clang") == 0 ||
+ } else if (!strcmp(cur_argv, "--target=wasm32-wasi")) {
- strcmp(callname, "afl-clang++") == 0) {
+ SCAN_KEEP(aflcc->passthrough, 1);
- compiler_mode = CLANG;
+ } else if (!strcmp(cur_argv, "-c")) {
- }
+ SCAN_KEEP(aflcc->have_c, 1);
- if ((ptr = getenv("AFL_CC_COMPILER"))) {
+ } else if (!strcmp(cur_argv, "-static-libasan")) {
- if (compiler_mode) {
+ SCAN_KEEP(aflcc->have_staticasan, 1);
- if (!be_quiet) {
+ } else if (strstr(cur_argv, "librustc") && strstr(cur_argv, "_rt.asan.a")) {
- WARNF(
- "\"AFL_CC_COMPILER\" is set but a specific compiler was already "
- "selected by command line parameter or symlink, ignoring the "
- "environment variable!");
+ SCAN_KEEP(aflcc->have_rust_asanrt, 1);
- }
+ } else if (!strcmp(cur_argv, "-fno-omit-frame-pointer")) {
- } else {
+ SCAN_KEEP(aflcc->have_fp, 1);
- if (strncasecmp(ptr, "LTO", 3) == 0) {
+ } else if (!strcmp(cur_argv, "-fvisibility=hidden")) {
- compiler_mode = LTO;
+ SCAN_KEEP(aflcc->have_hidden, 1);
- } else if (strncasecmp(ptr, "LLVM", 4) == 0) {
+ } else if (!strcmp(cur_argv, "-flto") || !strcmp(cur_argv, "-flto=full")) {
- compiler_mode = LLVM;
+ SCAN_KEEP(aflcc->have_flto, 1);
- } else if (strncasecmp(ptr, "GCC_P", 5) == 0 ||
+ } else if (!strncmp(cur_argv, "-D_FORTIFY_SOURCE",
- strncasecmp(ptr, "GCC-P", 5) == 0 ||
- strncasecmp(ptr, "GCCP", 4) == 0) {
+ strlen("-D_FORTIFY_SOURCE"))) {
- compiler_mode = GCC_PLUGIN;
+ SCAN_KEEP(aflcc->have_fortify, 1);
- } else if (strcasecmp(ptr, "GCC") == 0) {
+ } else if (!strncmp(cur_argv, "-fcf-protection", strlen("-fcf-protection"))) {
- compiler_mode = GCC;
+ SCAN_KEEP(aflcc->have_cfisan, 1);
- } else
+ } else if (!strncmp(cur_argv, "-O", 2)) {
- FATAL("Unknown AFL_CC_COMPILER mode: %s\n", ptr);
+ SCAN_KEEP(aflcc->have_o, 1);
- }
+ } else if (!strncmp(cur_argv, "-funroll-loop", 13)) {
- }
+ SCAN_KEEP(aflcc->have_unroll, 1);
- if (strcmp(callname, "afl-clang") == 0 ||
- strcmp(callname, "afl-clang++") == 0) {
+ } else if (!strncmp(cur_argv, "--afl", 5)) {
- clang_mode = 1;
- compiler_mode = CLANG;
-
- if (strcmp(callname, "afl-clang++") == 0) { plusplus_mode = 1; }
-
- }
-
- for (i = 1; i < argc; i++) {
-
- if (strncmp(argv[i], "--afl", 5) == 0) {
-
- if (!strcmp(argv[i], "--afl_noopt") || !strcmp(argv[i], "--afl-noopt")) {
-
- passthrough = 1;
- argv[i] = "-g"; // we have to overwrite it, -g is always good
- continue;
-
- }
-
- if (compiler_mode && !be_quiet) {
-
- WARNF(
- "--afl-... compiler mode supersedes the AFL_CC_COMPILER and "
- "symlink compiler selection!");
-
- }
-
- ptr = argv[i];
- ptr += 5;
- while (*ptr == '-')
- ptr++;
-
- if (strncasecmp(ptr, "LTO", 3) == 0) {
-
- compiler_mode = LTO;
-
- } else if (strncasecmp(ptr, "LLVM", 4) == 0) {
-
- compiler_mode = LLVM;
-
- } else if (strncasecmp(ptr, "PCGUARD", 7) == 0 ||
-
- strncasecmp(ptr, "PC-GUARD", 8) == 0) {
-
- compiler_mode = LLVM;
- instrument_mode = INSTRUMENT_PCGUARD;
-
- } else if (strcasecmp(ptr, "INSTRIM") == 0 ||
-
- strcasecmp(ptr, "CFG") == 0) {
-
- FATAL(
- "InsTrim instrumentation was removed. Use a modern LLVM and "
- "PCGUARD (default in afl-cc).\n");
-
- } else if (strcasecmp(ptr, "AFL") == 0 ||
-
- strcasecmp(ptr, "CLASSIC") == 0) {
-
- compiler_mode = LLVM;
- instrument_mode = INSTRUMENT_CLASSIC;
-
- } else if (strcasecmp(ptr, "LLVMNATIVE") == 0 ||
-
- strcasecmp(ptr, "NATIVE") == 0 ||
- strcasecmp(ptr, "LLVM-NATIVE") == 0) {
-
- compiler_mode = LLVM;
- instrument_mode = INSTRUMENT_LLVMNATIVE;
-
- } else if (strncasecmp(ptr, "GCC_P", 5) == 0 ||
-
- strncasecmp(ptr, "GCC-P", 5) == 0 ||
- strncasecmp(ptr, "GCCP", 4) == 0) {
-
- compiler_mode = GCC_PLUGIN;
-
- } else if (strcasecmp(ptr, "GCC") == 0) {
-
- compiler_mode = GCC;
-
- } else if (strncasecmp(ptr, "CLANG", 5) == 0) {
-
- compiler_mode = CLANG;
-
- } else
-
- FATAL("Unknown --afl-... compiler mode: %s\n", argv[i]);
-
- }
-
- }
-
- if (strlen(callname) > 2 &&
- (strncmp(callname + strlen(callname) - 2, "++", 2) == 0 ||
- strstr(callname, "-g++") != NULL))
- plusplus_mode = 1;
-
- if (getenv("USE_TRACE_PC") || getenv("AFL_USE_TRACE_PC") ||
- getenv("AFL_LLVM_USE_TRACE_PC") || getenv("AFL_TRACE_PC")) {
-
- if (instrument_mode == 0)
- instrument_mode = INSTRUMENT_PCGUARD;
- else if (instrument_mode != INSTRUMENT_PCGUARD)
- FATAL("you cannot set AFL_LLVM_INSTRUMENT and AFL_TRACE_PC together");
-
- }
-
- if (have_instr_env && getenv("AFL_DONT_OPTIMIZE") && !be_quiet) {
-
- WARNF(
- "AFL_LLVM_ALLOWLIST/DENYLIST and AFL_DONT_OPTIMIZE cannot be combined "
- "for file matching, only function matching!");
-
- }
-
- if (getenv("AFL_LLVM_INSTRIM") || getenv("INSTRIM") ||
- getenv("INSTRIM_LIB")) {
-
- FATAL(
- "InsTrim instrumentation was removed. Use a modern LLVM and PCGUARD "
- "(default in afl-cc).\n");
-
- }
-
- if (getenv("AFL_LLVM_CTX")) instrument_opt_mode |= INSTRUMENT_OPT_CTX;
- if (getenv("AFL_LLVM_CALLER")) instrument_opt_mode |= INSTRUMENT_OPT_CALLER;
-
- if (getenv("AFL_LLVM_NGRAM_SIZE")) {
-
- instrument_opt_mode |= INSTRUMENT_OPT_NGRAM;
- ngram_size = atoi(getenv("AFL_LLVM_NGRAM_SIZE"));
- if (ngram_size < 2 || ngram_size > NGRAM_SIZE_MAX)
- FATAL(
- "NGRAM instrumentation mode must be between 2 and NGRAM_SIZE_MAX "
- "(%u)",
- NGRAM_SIZE_MAX);
-
- }
-
- if (getenv("AFL_LLVM_CTX_K")) {
-
- ctx_k = atoi(getenv("AFL_LLVM_CTX_K"));
- if (ctx_k < 1 || ctx_k > CTX_MAX_K)
- FATAL("K-CTX instrumentation mode must be between 1 and CTX_MAX_K (%u)",
- CTX_MAX_K);
- if (ctx_k == 1) {
-
- setenv("AFL_LLVM_CALLER", "1", 1);
- unsetenv("AFL_LLVM_CTX_K");
- instrument_opt_mode |= INSTRUMENT_OPT_CALLER;
-
- } else {
-
- instrument_opt_mode |= INSTRUMENT_OPT_CTX_K;
-
- }
-
- }
-
- if (getenv("AFL_LLVM_INSTRUMENT")) {
-
- u8 *ptr2 = strtok(getenv("AFL_LLVM_INSTRUMENT"), ":,;");
-
- while (ptr2) {
-
- if (strncasecmp(ptr2, "afl", strlen("afl")) == 0 ||
- strncasecmp(ptr2, "classic", strlen("classic")) == 0) {
-
- if (instrument_mode == INSTRUMENT_LTO) {
-
- instrument_mode = INSTRUMENT_CLASSIC;
- lto_mode = 1;
-
- } else if (!instrument_mode || instrument_mode == INSTRUMENT_AFL) {
-
- instrument_mode = INSTRUMENT_AFL;
-
- } else {
-
- FATAL("main instrumentation mode already set with %s",
- instrument_mode_string[instrument_mode]);
-
- }
-
- }
-
- if (strncasecmp(ptr2, "pc-guard", strlen("pc-guard")) == 0 ||
- strncasecmp(ptr2, "pcguard", strlen("pcguard")) == 0) {
-
- if (!instrument_mode || instrument_mode == INSTRUMENT_PCGUARD)
- instrument_mode = INSTRUMENT_PCGUARD;
- else
- FATAL("main instrumentation mode already set with %s",
- instrument_mode_string[instrument_mode]);
-
- }
-
- if (strncasecmp(ptr2, "llvmnative", strlen("llvmnative")) == 0 ||
- strncasecmp(ptr2, "llvm-native", strlen("llvm-native")) == 0 ||
- strncasecmp(ptr2, "native", strlen("native")) == 0) {
-
- if (!instrument_mode || instrument_mode == INSTRUMENT_LLVMNATIVE)
- instrument_mode = INSTRUMENT_LLVMNATIVE;
- else
- FATAL("main instrumentation mode already set with %s",
- instrument_mode_string[instrument_mode]);
-
- }
-
- if (strncasecmp(ptr2, "llvmcodecov", strlen("llvmcodecov")) == 0 ||
- strncasecmp(ptr2, "llvm-codecov", strlen("llvm-codecov")) == 0) {
-
- if (!instrument_mode || instrument_mode == INSTRUMENT_LLVMNATIVE) {
-
- instrument_mode = INSTRUMENT_LLVMNATIVE;
- instrument_opt_mode |= INSTRUMENT_OPT_CODECOV;
-
- } else {
-
- FATAL("main instrumentation mode already set with %s",
- instrument_mode_string[instrument_mode]);
-
- }
-
- }
-
- if (strncasecmp(ptr2, "cfg", strlen("cfg")) == 0 ||
- strncasecmp(ptr2, "instrim", strlen("instrim")) == 0) {
-
- FATAL(
- "InsTrim instrumentation was removed. Use a modern LLVM and "
- "PCGUARD (default in afl-cc).\n");
-
- }
-
- if (strncasecmp(ptr2, "lto", strlen("lto")) == 0) {
-
- lto_mode = 1;
- if (!instrument_mode || instrument_mode == INSTRUMENT_LTO)
- instrument_mode = INSTRUMENT_LTO;
- else
- FATAL("main instrumentation mode already set with %s",
- instrument_mode_string[instrument_mode]);
-
- }
-
- if (strcasecmp(ptr2, "gcc") == 0) {
-
- if (!instrument_mode || instrument_mode == INSTRUMENT_GCC)
- instrument_mode = INSTRUMENT_GCC;
- else if (instrument_mode != INSTRUMENT_GCC)
- FATAL("main instrumentation mode already set with %s",
- instrument_mode_string[instrument_mode]);
- compiler_mode = GCC;
-
- }
-
- if (strcasecmp(ptr2, "clang") == 0) {
-
- if (!instrument_mode || instrument_mode == INSTRUMENT_CLANG)
- instrument_mode = INSTRUMENT_CLANG;
- else if (instrument_mode != INSTRUMENT_CLANG)
- FATAL("main instrumentation mode already set with %s",
- instrument_mode_string[instrument_mode]);
- compiler_mode = CLANG;
-
- }
-
- if (strncasecmp(ptr2, "ctx-", strlen("ctx-")) == 0 ||
- strncasecmp(ptr2, "kctx-", strlen("c-ctx-")) == 0 ||
- strncasecmp(ptr2, "k-ctx-", strlen("k-ctx-")) == 0) {
-
- u8 *ptr3 = ptr2;
- while (*ptr3 && (*ptr3 < '0' || *ptr3 > '9'))
- ptr3++;
-
- if (!*ptr3) {
-
- if ((ptr3 = getenv("AFL_LLVM_CTX_K")) == NULL)
- FATAL(
- "you must set the K-CTX K with (e.g. for value 2) "
- "AFL_LLVM_INSTRUMENT=ctx-2");
-
- }
-
- ctx_k = atoi(ptr3);
- if (ctx_k < 1 || ctx_k > CTX_MAX_K)
- FATAL(
- "K-CTX instrumentation option must be between 1 and CTX_MAX_K "
- "(%u)",
- CTX_MAX_K);
-
- if (ctx_k == 1) {
-
- instrument_opt_mode |= INSTRUMENT_OPT_CALLER;
- setenv("AFL_LLVM_CALLER", "1", 1);
- unsetenv("AFL_LLVM_CTX_K");
-
- } else {
-
- instrument_opt_mode |= (INSTRUMENT_OPT_CTX_K);
- u8 *ptr4 = alloc_printf("%u", ctx_k);
- setenv("AFL_LLVM_CTX_K", ptr4, 1);
-
- }
-
- }
-
- if (strcasecmp(ptr2, "ctx") == 0) {
-
- instrument_opt_mode |= INSTRUMENT_OPT_CTX;
- setenv("AFL_LLVM_CTX", "1", 1);
-
- }
-
- if (strncasecmp(ptr2, "caller", strlen("caller")) == 0) {
-
- instrument_opt_mode |= INSTRUMENT_OPT_CALLER;
- setenv("AFL_LLVM_CALLER", "1", 1);
-
- }
-
- if (strncasecmp(ptr2, "ngram", strlen("ngram")) == 0) {
-
- u8 *ptr3 = ptr2 + strlen("ngram");
- while (*ptr3 && (*ptr3 < '0' || *ptr3 > '9'))
- ptr3++;
-
- if (!*ptr3) {
-
- if ((ptr3 = getenv("AFL_LLVM_NGRAM_SIZE")) == NULL)
- FATAL(
- "you must set the NGRAM size with (e.g. for value 2) "
- "AFL_LLVM_INSTRUMENT=ngram-2");
-
- }
-
- ngram_size = atoi(ptr3);
- if (ngram_size < 2 || ngram_size > NGRAM_SIZE_MAX)
- FATAL(
- "NGRAM instrumentation option must be between 2 and "
- "NGRAM_SIZE_MAX (%u)",
- NGRAM_SIZE_MAX);
- instrument_opt_mode |= (INSTRUMENT_OPT_NGRAM);
- u8 *ptr4 = alloc_printf("%u", ngram_size);
- setenv("AFL_LLVM_NGRAM_SIZE", ptr4, 1);
-
- }
-
- ptr2 = strtok(NULL, ":,;");
-
- }
-
- }
-
- if ((instrument_opt_mode & INSTRUMENT_OPT_CTX) &&
- (instrument_opt_mode & INSTRUMENT_OPT_CALLER)) {
-
- FATAL("you cannot set CTX and CALLER together");
-
- }
-
- if ((instrument_opt_mode & INSTRUMENT_OPT_CTX) &&
- (instrument_opt_mode & INSTRUMENT_OPT_CTX_K)) {
-
- FATAL("you cannot set CTX and K-CTX together");
-
- }
-
- if ((instrument_opt_mode & INSTRUMENT_OPT_CALLER) &&
- (instrument_opt_mode & INSTRUMENT_OPT_CTX_K)) {
-
- FATAL("you cannot set CALLER and K-CTX together");
-
- }
-
- if (instrument_opt_mode && instrument_mode == INSTRUMENT_DEFAULT &&
- (compiler_mode == LLVM || compiler_mode == UNSET)) {
-
- instrument_mode = INSTRUMENT_CLASSIC;
- compiler_mode = LLVM;
-
- }
-
- if (!compiler_mode) {
-
- // lto is not a default because outside of afl-cc RANLIB and AR have to
- // be set to LLVM versions so this would work
- if (have_llvm)
- compiler_mode = LLVM;
- else if (have_gcc_plugin)
- compiler_mode = GCC_PLUGIN;
- else if (have_gcc)
-#ifdef __APPLE__
- // on OSX clang masquerades as GCC
- compiler_mode = CLANG;
-#else
- compiler_mode = GCC;
-#endif
- else if (have_lto)
- compiler_mode = LTO;
+ if (scan)
+ final_ = PARAM_SCAN;
else
- FATAL("no compiler mode available");
+ final_ = PARAM_DROP;
- }
+ } else if (!strncmp(cur_argv, "-fno-unroll", 11)) {
- /* if our PCGUARD implementation is not available then silently switch to
- native LLVM PCGUARD */
- if (compiler_mode == CLANG &&
- (instrument_mode == INSTRUMENT_DEFAULT ||
- instrument_mode == INSTRUMENT_PCGUARD) &&
- find_object("SanitizerCoveragePCGUARD.so", argv[0]) == NULL) {
+ if (scan)
+ final_ = PARAM_SCAN;
+ else
+ final_ = PARAM_DROP;
- instrument_mode = INSTRUMENT_LLVMNATIVE;
+ } else if (!strcmp(cur_argv, "-pipe") && aflcc->compiler_mode == GCC_PLUGIN) {
- }
+ if (scan)
+ final_ = PARAM_SCAN;
+ else
+ final_ = PARAM_DROP;
- if (compiler_mode == GCC) {
+ } else if (!strncmp(cur_argv, "-stdlib=", 8) &&
- if (clang_mode) {
+ (aflcc->compiler_mode == GCC ||
+ aflcc->compiler_mode == GCC_PLUGIN)) {
- instrument_mode = INSTRUMENT_CLANG;
+ if (scan) {
+
+ final_ = PARAM_SCAN;
} else {
- instrument_mode = INSTRUMENT_GCC;
+ if (!be_quiet) WARNF("Found '%s' - stripping!", cur_argv);
+ final_ = PARAM_DROP;
}
- }
+ } else if (cur_argv[0] != '-') {
- if (compiler_mode == CLANG) {
+ /* It's a weak, loose pattern, with very different purpose
+ than others. We handle it at last, cautiously and robustly. */
- instrument_mode = INSTRUMENT_CLANG;
- setenv(CLANG_ENV_VAR, "1", 1); // used by afl-as
+ if (scan && cur_argv[0] != '@') // response file support
+ aflcc->non_dash = 1;
}
+#undef SCAN_KEEP
+
+ if (final_ == PARAM_KEEP) insert_param(aflcc, cur_argv);
+
+ return final_;
+
+}
+
+/** Miscellaneous routines -----END----- **/
+
+/* Print help message on request */
+static void maybe_usage(aflcc_state_t *aflcc, int argc, char **argv) {
+
if (argc < 2 || strncmp(argv[1], "-h", 2) == 0) {
printf("afl-cc" VERSION
@@ -2107,36 +2719,44 @@
"-------------|\n"
"MODES: NCC PERSIST DICT LAF "
"CMPLOG SELECT\n"
- " [LTO] LLVM LTO: %s%s\n"
- " PCGUARD DEFAULT yes yes yes yes yes "
- " yes\n"
- " CLASSIC yes yes yes yes yes "
- " yes\n"
" [LLVM] LLVM: %s%s\n"
- " PCGUARD %s yes yes module yes yes "
+ " PCGUARD %s yes yes module yes yes "
"yes\n"
- " CLASSIC %s no yes module yes yes "
+ " NATIVE AVAILABLE no yes no no "
+ "part. yes\n"
+ " CLASSIC %s no yes module yes yes "
"yes\n"
" - NORMAL\n"
" - CALLER\n"
" - CTX\n"
" - NGRAM-{2-16}\n"
+ " [LTO] LLVM LTO: %s%s\n"
+ " PCGUARD DEFAULT yes yes yes yes yes "
+ " yes\n"
+ " CLASSIC yes yes yes yes yes "
+ " yes\n"
" [GCC_PLUGIN] gcc plugin: %s%s\n"
" CLASSIC DEFAULT no yes no no no "
"yes\n"
" [GCC/CLANG] simple gcc/clang: %s%s\n"
" CLASSIC DEFAULT no no no no no "
"no\n\n",
- have_lto ? "AVAILABLE" : "unavailable!",
- compiler_mode == LTO ? " [SELECTED]" : "",
- have_llvm ? "AVAILABLE" : "unavailable!",
- compiler_mode == LLVM ? " [SELECTED]" : "",
- LLVM_MAJOR >= 7 ? "DEFAULT" : " ",
- LLVM_MAJOR >= 7 ? " " : "DEFAULT",
- have_gcc_plugin ? "AVAILABLE" : "unavailable!",
- compiler_mode == GCC_PLUGIN ? " [SELECTED]" : "",
- have_gcc ? "AVAILABLE" : "unavailable!",
- (compiler_mode == GCC || compiler_mode == CLANG) ? " [SELECTED]" : "");
+ aflcc->have_llvm ? "AVAILABLE" : "unavailable!",
+ aflcc->compiler_mode == LLVM ? " [SELECTED]" : "",
+ aflcc->have_llvm ? "AVAILABLE" : "unavailable!",
+ aflcc->have_llvm ? "AVAILABLE" : "unavailable!",
+ aflcc->have_lto ? "AVAILABLE" : "unavailable!",
+ aflcc->compiler_mode == LTO ? " [SELECTED]" : "",
+ aflcc->have_gcc_plugin ? "AVAILABLE" : "unavailable!",
+ aflcc->compiler_mode == GCC_PLUGIN ? " [SELECTED]" : "",
+ aflcc->have_gcc && aflcc->have_clang
+ ? "AVAILABLE"
+ : (aflcc->have_gcc
+ ? "GCC ONLY "
+ : (aflcc->have_clang ? "CLANG ONLY" : "unavailable!")),
+ (aflcc->compiler_mode == GCC || aflcc->compiler_mode == CLANG)
+ ? " [SELECTED]"
+ : "");
SAYF(
"Modes:\n"
@@ -2210,7 +2830,7 @@
" AFL_DONT_OPTIMIZE: disable optimization instead of -O3\n"
" AFL_NO_BUILTIN: no builtins for string compare functions (for "
"libtokencap.so)\n"
- " AFL_NOOP: behave like a normal compiler (to pass configure "
+ " AFL_NOOPT: behave like a normal compiler (to pass configure "
"tests)\n"
" AFL_PATH: path to instrumenting pass and runtime "
"(afl-compiler-rt.*o)\n"
@@ -2225,7 +2845,7 @@
" AFL_USE_TSAN: activate thread sanitizer\n"
" AFL_USE_LSAN: activate leak-checker sanitizer\n");
- if (have_gcc_plugin)
+ if (aflcc->have_gcc_plugin)
SAYF(
"\nGCC Plugin-specific environment variables:\n"
" AFL_GCC_CMPLOG: log operands of comparisons (RedQueen mutator)\n"
@@ -2241,7 +2861,7 @@
#define COUNTER_BEHAVIOUR \
" AFL_LLVM_NOT_ZERO: use cycling trace counters that skip zero\n"
#endif
- if (have_llvm)
+ if (aflcc->have_llvm)
SAYF(
"\nLLVM/LTO/afl-clang-fast/afl-clang-lto specific environment "
"variables:\n"
@@ -2254,6 +2874,10 @@
"comparisons\n"
" AFL_LLVM_DICT2FILE_NO_MAIN: skip parsing main() for the "
"dictionary\n"
+ " AFL_LLVM_INJECTIONS_ALL: enables all injections hooking\n"
+ " AFL_LLVM_INJECTIONS_SQL: enables SQL injections hooking\n"
+ " AFL_LLVM_INJECTIONS_LDAP: enables LDAP injections hooking\n"
+ " AFL_LLVM_INJECTIONS_XSS: enables XSS injections hooking\n"
" AFL_LLVM_LAF_ALL: enables all LAF splits/transforms\n"
" AFL_LLVM_LAF_SPLIT_COMPARES: enable cascaded comparisons\n"
" AFL_LLVM_LAF_SPLIT_COMPARES_BITW: size limit (default 8)\n"
@@ -2265,7 +2889,7 @@
"instrument allow/\n"
" deny listing (selective instrumentation)\n");
- if (have_llvm)
+ if (aflcc->have_llvm)
SAYF(
" AFL_LLVM_CMPLOG: log operands of comparisons (RedQueen "
"mutator)\n"
@@ -2279,10 +2903,12 @@
" AFL_LLVM_CTX: use full context sensitive coverage (for "
"CLASSIC)\n"
" AFL_LLVM_NGRAM_SIZE: use ngram prev_loc count coverage (for "
- "CLASSIC)\n");
+ "CLASSIC)\n"
+ " AFL_LLVM_NO_RPATH: disable rpath setting for custom LLVM "
+ "locations\n");
#ifdef AFL_CLANG_FLTO
- if (have_lto)
+ if (aflcc->have_lto)
SAYF(
"\nLTO/afl-clang-lto specific environment variables:\n"
" AFL_LLVM_MAP_ADDR: use a fixed coverage map address (speed), "
@@ -2290,7 +2916,7 @@
"0x10000\n"
" AFL_LLVM_DOCUMENT_IDS: write all edge IDs and the corresponding "
"functions\n"
- " into this file\n"
+ " into this file (LTO mode)\n"
" AFL_LLVM_LTO_DONTWRITEID: don't write the highest ID used to a "
"global var\n"
" AFL_LLVM_LTO_STARTID: from which ID to start counting from for "
@@ -2318,9 +2944,9 @@
"targets.\n\n");
#if (LLVM_MAJOR >= 3)
- if (have_lto)
+ if (aflcc->have_lto)
SAYF("afl-cc LTO with ld=%s %s\n", AFL_REAL_LD, AFL_CLANG_FLTO);
- if (have_llvm)
+ if (aflcc->have_llvm)
SAYF("afl-cc LLVM version %d using the binary path \"%s\".\n", LLVM_MAJOR,
LLVM_BINDIR);
#endif
@@ -2346,209 +2972,498 @@
"AFL_LLVM_CMPLOG and "
"AFL_LLVM_DICT2FILE+AFL_LLVM_DICT2FILE_NO_MAIN.\n\n");
+ if (LLVM_MAJOR < 13) {
+
+ SAYF(
+ "Warning: It is highly recommended to use at least LLVM version 13 "
+ "(or better, higher) rather than %d!\n\n",
+ LLVM_MAJOR);
+
+ }
+
exit(1);
}
- if (compiler_mode == LTO) {
+}
- if (instrument_mode == 0 || instrument_mode == INSTRUMENT_LTO ||
- instrument_mode == INSTRUMENT_CFG ||
- instrument_mode == INSTRUMENT_PCGUARD) {
+/*
+ Process params passed to afl-cc.
- lto_mode = 1;
- // force CFG
- // if (!instrument_mode) {
+ We have two working modes, *scan* and *non-scan*. In scan mode,
+ the main task is to set some variables in aflcc according to current argv[i],
+ while in non-scan mode, is to choose keep or drop current argv[i].
- instrument_mode = INSTRUMENT_PCGUARD;
- // ptr = instrument_mode_string[instrument_mode];
- // }
+ We have several matching routines being called sequentially in the while-loop,
+ and each of them try to parse and match current argv[i] according to their own
+ rules. If one miss match, the next will then take over. In non-scan mode, each
+ argv[i] mis-matched by all the routines will be kept.
- } else if (instrument_mode == INSTRUMENT_CLASSIC) {
+ These routines are:
+ 1. parse_misc_params
+ 2. parse_fsanitize
+ 3. parse_linking_params
+ 4. `if (*cur == '@') {...}`, i.e., parse response files
+*/
+static void process_params(aflcc_state_t *aflcc, u8 scan, u32 argc,
+ char **argv) {
- lto_mode = 1;
+ // for (u32 x = 0; x < argc; ++x) fprintf(stderr, "[%u] %s\n", x, argv[x]);
+
+ /* Process the argument list. */
+
+ u8 skip_next = 0;
+ while (--argc) {
+
+ u8 *cur = *(++argv);
+
+ if (skip_next > 0) {
+
+ skip_next--;
+ continue;
+
+ }
+
+ if (PARAM_MISS != parse_misc_params(aflcc, cur, scan)) continue;
+
+ if (PARAM_MISS != parse_fsanitize(aflcc, cur, scan)) continue;
+
+ if (PARAM_MISS != parse_linking_params(aflcc, cur, scan, &skip_next, argv))
+ continue;
+
+ /* Response file support -----BEGIN-----
+ We have two choices - move everything to the command line or
+ rewrite the response files to temporary files and delete them
+ afterwards. We choose the first for easiness.
+ For clang, llvm::cl::ExpandResponseFiles does this, however it
+ only has C++ interface. And for gcc there is expandargv in libiberty,
+ written in C, but we can't simply copy-paste since its LGPL licensed.
+ So here we use an equivalent FSM as alternative, and try to be compatible
+ with the two above. See:
+ - https://gcc.gnu.org/onlinedocs/gcc/Overall-Options.html
+ - driver::expand_at_files in gcc.git/gcc/gcc.c
+ - expandargv in gcc.git/libiberty/argv.c
+ - llvm-project.git/clang/tools/driver/driver.cpp
+ - ExpandResponseFiles in
+ llvm-project.git/llvm/lib/Support/CommandLine.cpp
+ */
+ if (*cur == '@') {
+
+ u8 *filename = cur + 1;
+ if (aflcc->debug) { DEBUGF("response file=%s\n", filename); }
+
+ // Check not found or empty? let the compiler complain if so.
+ FILE *f = fopen(filename, "r");
+ if (!f) {
+
+ if (!scan) insert_param(aflcc, cur);
+ continue;
+
+ }
+
+ struct stat st;
+ if (fstat(fileno(f), &st) || !S_ISREG(st.st_mode) || st.st_size < 1) {
+
+ fclose(f);
+ if (!scan) insert_param(aflcc, cur);
+ continue;
+
+ }
+
+ // Limit the number of response files, the max value
+ // just keep consistent with expandargv. Only do this in
+ // scan mode, and not touch rsp_count anymore in the next.
+ static u32 rsp_count = 2000;
+ if (scan) {
+
+ if (rsp_count == 0) FATAL("Too many response files provided!");
+
+ --rsp_count;
+
+ }
+
+ // argc, argv acquired from this rsp file. Note that
+ // process_params ignores argv[0], we need to put a const "" here.
+ u32 argc_read = 1;
+ char **argv_read = ck_alloc(sizeof(char *));
+ argv_read[0] = "";
+
+ char *arg_buf = NULL;
+ u64 arg_len = 0;
+
+ enum fsm_state {
+
+ fsm_whitespace, // whitespace seen so far
+ fsm_double_quote, // have unpaired double quote
+ fsm_single_quote, // have unpaired single quote
+ fsm_backslash, // a backslash is seen with no unpaired quote
+ fsm_normal // a normal char is seen
+
+ };
+
+ // Workaround to append c to arg buffer, and append the buffer to argv
+#define ARG_ALLOC(c) \
+ do { \
+ \
+ ++arg_len; \
+ arg_buf = ck_realloc(arg_buf, (arg_len + 1) * sizeof(char)); \
+ arg_buf[arg_len] = '\0'; \
+ arg_buf[arg_len - 1] = (char)c; \
+ \
+ } while (0)
+
+#define ARG_STORE() \
+ do { \
+ \
+ ++argc_read; \
+ argv_read = ck_realloc(argv_read, argc_read * sizeof(char *)); \
+ argv_read[argc_read - 1] = arg_buf; \
+ arg_buf = NULL; \
+ arg_len = 0; \
+ \
+ } while (0)
+
+ int cur_chr = (int)' '; // init as whitespace, as a good start :)
+ enum fsm_state state_ = fsm_whitespace;
+
+ while (cur_chr != EOF) {
+
+ switch (state_) {
+
+ case fsm_whitespace:
+
+ if (arg_buf) {
+
+ ARG_STORE();
+ break;
+
+ }
+
+ if (isspace(cur_chr)) {
+
+ cur_chr = fgetc(f);
+
+ } else if (cur_chr == (int)'\'') {
+
+ state_ = fsm_single_quote;
+ cur_chr = fgetc(f);
+
+ } else if (cur_chr == (int)'"') {
+
+ state_ = fsm_double_quote;
+ cur_chr = fgetc(f);
+
+ } else if (cur_chr == (int)'\\') {
+
+ state_ = fsm_backslash;
+ cur_chr = fgetc(f);
+
+ } else {
+
+ state_ = fsm_normal;
+
+ }
+
+ break;
+
+ case fsm_normal:
+
+ if (isspace(cur_chr)) {
+
+ state_ = fsm_whitespace;
+
+ } else if (cur_chr == (int)'\'') {
+
+ state_ = fsm_single_quote;
+ cur_chr = fgetc(f);
+
+ } else if (cur_chr == (int)'\"') {
+
+ state_ = fsm_double_quote;
+ cur_chr = fgetc(f);
+
+ } else if (cur_chr == (int)'\\') {
+
+ state_ = fsm_backslash;
+ cur_chr = fgetc(f);
+
+ } else {
+
+ ARG_ALLOC(cur_chr);
+ cur_chr = fgetc(f);
+
+ }
+
+ break;
+
+ case fsm_backslash:
+
+ ARG_ALLOC(cur_chr);
+ cur_chr = fgetc(f);
+ state_ = fsm_normal;
+
+ break;
+
+ case fsm_single_quote:
+
+ if (cur_chr == (int)'\\') {
+
+ cur_chr = fgetc(f);
+ if (cur_chr == EOF) break;
+ ARG_ALLOC(cur_chr);
+
+ } else if (cur_chr == (int)'\'') {
+
+ state_ = fsm_normal;
+
+ } else {
+
+ ARG_ALLOC(cur_chr);
+
+ }
+
+ cur_chr = fgetc(f);
+ break;
+
+ case fsm_double_quote:
+
+ if (cur_chr == (int)'\\') {
+
+ cur_chr = fgetc(f);
+ if (cur_chr == EOF) break;
+ ARG_ALLOC(cur_chr);
+
+ } else if (cur_chr == (int)'"') {
+
+ state_ = fsm_normal;
+
+ } else {
+
+ ARG_ALLOC(cur_chr);
+
+ }
+
+ cur_chr = fgetc(f);
+ break;
+
+ default:
+ break;
+
+ }
+
+ }
+
+ if (arg_buf) { ARG_STORE(); } // save the pending arg after EOF
+
+#undef ARG_ALLOC
+#undef ARG_STORE
+
+ if (argc_read > 1) { process_params(aflcc, scan, argc_read, argv_read); }
+
+ // We cannot free argv_read[] unless we don't need to keep any
+ // reference in cc_params. Never free argv[0], the const "".
+ if (scan) {
+
+ while (argc_read > 1)
+ ck_free(argv_read[--argc_read]);
+
+ ck_free(argv_read);
+
+ }
+
+ continue;
+
+ } /* Response file support -----END----- */
+
+ if (!scan) insert_param(aflcc, cur);
+
+ }
+
+}
+
+/* Process each of the existing argv, also add a few new args. */
+static void edit_params(aflcc_state_t *aflcc, u32 argc, char **argv,
+ char **envp) {
+
+ add_real_argv0(aflcc);
+
+ // prevent unnecessary build errors
+ if (aflcc->compiler_mode != GCC_PLUGIN && aflcc->compiler_mode != GCC) {
+
+ insert_param(aflcc, "-Wno-unused-command-line-argument");
+
+ }
+
+ if (aflcc->compiler_mode == GCC || aflcc->compiler_mode == CLANG) {
+
+ add_assembler(aflcc);
+
+ }
+
+ if (aflcc->compiler_mode == GCC_PLUGIN) { add_gcc_plugin(aflcc); }
+
+ if (aflcc->compiler_mode == LLVM || aflcc->compiler_mode == LTO) {
+
+ if (aflcc->lto_mode && aflcc->have_instr_env) {
+
+ load_llvm_pass(aflcc, "afl-llvm-lto-instrumentlist.so");
+
+ }
+
+ if (getenv("AFL_LLVM_DICT2FILE")) {
+
+ load_llvm_pass(aflcc, "afl-llvm-dict2file.so");
+
+ }
+
+ // laf
+ if (getenv("LAF_SPLIT_SWITCHES") || getenv("AFL_LLVM_LAF_SPLIT_SWITCHES")) {
+
+ load_llvm_pass(aflcc, "split-switches-pass.so");
+
+ }
+
+ if (getenv("LAF_TRANSFORM_COMPARES") ||
+ getenv("AFL_LLVM_LAF_TRANSFORM_COMPARES")) {
+
+ load_llvm_pass(aflcc, "compare-transform-pass.so");
+
+ }
+
+ if (getenv("LAF_SPLIT_COMPARES") || getenv("AFL_LLVM_LAF_SPLIT_COMPARES") ||
+ getenv("AFL_LLVM_LAF_SPLIT_FLOATS")) {
+
+ load_llvm_pass(aflcc, "split-compares-pass.so");
+
+ }
+
+ // /laf
+
+ if (aflcc->cmplog_mode) {
+
+ insert_param(aflcc, "-fno-inline");
+
+ load_llvm_pass(aflcc, "cmplog-switches-pass.so");
+ // reuse split switches from laf
+ load_llvm_pass(aflcc, "split-switches-pass.so");
+
+ }
+
+ // #if LLVM_MAJOR >= 13
+ // // Use the old pass manager in LLVM 14 which the AFL++ passes still
+ // use. insert_param(aflcc, "-flegacy-pass-manager");
+ // #endif
+
+ if (aflcc->lto_mode) {
+
+ insert_param(aflcc, aflcc->lto_flag);
+
+ if (!aflcc->have_c) {
+
+ add_lto_linker(aflcc);
+ add_lto_passes(aflcc);
+
+ }
} else {
- if (!be_quiet) {
+ if (aflcc->instrument_mode == INSTRUMENT_PCGUARD) {
- WARNF("afl-clang-lto called with mode %s, using that mode instead",
- instrument_mode_string[instrument_mode]);
+ add_optimized_pcguard(aflcc);
+
+ } else if (aflcc->instrument_mode == INSTRUMENT_LLVMNATIVE) {
+
+ add_native_pcguard(aflcc);
+
+ } else {
+
+ load_llvm_pass(aflcc, "afl-llvm-pass.so");
}
}
- }
+ if (aflcc->cmplog_mode) {
- if (instrument_mode == 0 && compiler_mode < GCC_PLUGIN) {
+ load_llvm_pass(aflcc, "cmplog-instructions-pass.so");
+ load_llvm_pass(aflcc, "cmplog-routines-pass.so");
-#if LLVM_MAJOR >= 7
- #if LLVM_MAJOR < 11 && (LLVM_MAJOR < 10 || LLVM_MINOR < 1)
- if (have_instr_env) {
+ }
- instrument_mode = INSTRUMENT_AFL;
- if (!be_quiet) {
+ if (getenv("AFL_LLVM_INJECTIONS_ALL") ||
+ getenv("AFL_LLVM_INJECTIONS_SQL") ||
+ getenv("AFL_LLVM_INJECTIONS_LDAP") ||
+ getenv("AFL_LLVM_INJECTIONS_XSS")) {
- WARNF(
- "Switching to classic instrumentation because "
- "AFL_LLVM_ALLOWLIST/DENYLIST does not work with PCGUARD < 10.0.1.");
+ load_llvm_pass(aflcc, "injection-pass.so");
- }
+ }
- } else
-
- #endif
- instrument_mode = INSTRUMENT_PCGUARD;
-
-#else
- instrument_mode = INSTRUMENT_AFL;
-#endif
+ // insert_param(aflcc, "-Qunused-arguments");
}
- if (instrument_opt_mode && compiler_mode != LLVM)
- FATAL("CTX, CALLER and NGRAM can only be used in LLVM mode");
+ /* Inspect the command line parameters. */
- if (!instrument_opt_mode) {
+ process_params(aflcc, 0, argc, argv);
- if (lto_mode && instrument_mode == INSTRUMENT_CFG)
- instrument_mode = INSTRUMENT_PCGUARD;
- ptr = instrument_mode_string[instrument_mode];
+ add_sanitizers(aflcc, envp);
+
+ add_misc_params(aflcc);
+
+ add_defs_common(aflcc);
+ add_defs_selective_instr(aflcc);
+ add_defs_persistent_mode(aflcc);
+
+ add_runtime(aflcc);
+
+ insert_param(aflcc, NULL);
+
+}
+
+/* Main entry point */
+int main(int argc, char **argv, char **envp) {
+
+ aflcc_state_t *aflcc = malloc(sizeof(aflcc_state_t));
+ aflcc_state_init(aflcc, (u8 *)argv[0]);
+
+ check_environment_vars(envp);
+
+ find_built_deps(aflcc);
+
+ compiler_mode_by_callname(aflcc);
+ compiler_mode_by_environ(aflcc);
+ compiler_mode_by_cmdline(aflcc, argc, argv);
+
+ instrument_mode_by_environ(aflcc);
+
+ mode_final_checkout(aflcc, argc, argv);
+
+ process_params(aflcc, 1, argc, argv);
+
+ maybe_usage(aflcc, argc, argv);
+
+ mode_notification(aflcc);
+
+ if (aflcc->debug) debugf_args(argc, argv);
+
+ edit_params(aflcc, argc, argv, envp);
+
+ if (aflcc->debug)
+ debugf_args((s32)aflcc->cc_par_cnt, (char **)aflcc->cc_params);
+
+ if (aflcc->passthrough) {
+
+ argv[0] = aflcc->cc_params[0];
+ execvp(aflcc->cc_params[0], (char **)argv);
} else {
- char *ptr2 = alloc_printf(" + NGRAM-%u", ngram_size);
- char *ptr3 = alloc_printf(" + K-CTX-%u", ctx_k);
-
- ptr = alloc_printf(
- "%s%s%s%s%s", instrument_mode_string[instrument_mode],
- (instrument_opt_mode & INSTRUMENT_OPT_CTX) ? " + CTX" : "",
- (instrument_opt_mode & INSTRUMENT_OPT_CALLER) ? " + CALLER" : "",
- (instrument_opt_mode & INSTRUMENT_OPT_NGRAM) ? ptr2 : "",
- (instrument_opt_mode & INSTRUMENT_OPT_CTX_K) ? ptr3 : "");
-
- ck_free(ptr2);
- ck_free(ptr3);
+ execvp(aflcc->cc_params[0], (char **)aflcc->cc_params);
}
-#ifndef AFL_CLANG_FLTO
- if (lto_mode)
- FATAL(
- "instrumentation mode LTO specified but LLVM support not available "
- "(requires LLVM 11 or higher)");
-#endif
-
- if (instrument_opt_mode && instrument_opt_mode != INSTRUMENT_OPT_CODECOV &&
- instrument_mode != INSTRUMENT_CLASSIC)
- FATAL(
- "CALLER, CTX and NGRAM instrumentation options can only be used with "
- "the LLVM CLASSIC instrumentation mode.");
-
- if (getenv("AFL_LLVM_SKIP_NEVERZERO") && getenv("AFL_LLVM_NOT_ZERO"))
- FATAL(
- "AFL_LLVM_NOT_ZERO and AFL_LLVM_SKIP_NEVERZERO can not be set "
- "together");
-
-#if LLVM_MAJOR < 11 && (LLVM_MAJOR < 10 || LLVM_MINOR < 1)
- if (instrument_mode == INSTRUMENT_PCGUARD && have_instr_env) {
-
- FATAL(
- "Instrumentation type PCGUARD does not support "
- "AFL_LLVM_ALLOWLIST/DENYLIST! Use LLVM 10.0.1+ instead.");
-
- }
-
-#endif
-
- u8 *ptr2;
-
- if ((ptr2 = getenv("AFL_LLVM_DICT2FILE")) != NULL && *ptr2 != '/')
- FATAL("AFL_LLVM_DICT2FILE must be set to an absolute file path");
-
- if ((isatty(2) && !be_quiet) || debug) {
-
- SAYF(cCYA
- "afl-cc" VERSION cRST
- " by Michal Zalewski, Laszlo Szekeres, Marc Heuse - mode: %s-%s\n",
- compiler_mode_string[compiler_mode], ptr);
-
- }
-
- if (!be_quiet && (compiler_mode == GCC || compiler_mode == CLANG)) {
-
- WARNF(
- "You are using outdated instrumentation, install LLVM and/or "
- "gcc-plugin and use afl-clang-fast/afl-clang-lto/afl-gcc-fast "
- "instead!");
-
- }
-
- if (debug) {
-
- DEBUGF("cd '%s';", getthecwd());
- for (i = 0; i < argc; i++)
- SAYF(" '%s'", argv[i]);
- SAYF("\n");
- fflush(stdout);
- fflush(stderr);
-
- }
-
- if (getenv("AFL_LLVM_LAF_ALL")) {
-
- setenv("AFL_LLVM_LAF_SPLIT_SWITCHES", "1", 1);
- setenv("AFL_LLVM_LAF_SPLIT_COMPARES", "1", 1);
- setenv("AFL_LLVM_LAF_SPLIT_FLOATS", "1", 1);
- setenv("AFL_LLVM_LAF_TRANSFORM_COMPARES", "1", 1);
-
- }
-
- cmplog_mode = getenv("AFL_CMPLOG") || getenv("AFL_LLVM_CMPLOG") ||
- getenv("AFL_GCC_CMPLOG");
-
-#if !defined(__ANDROID__) && !defined(ANDROID)
- ptr = find_object("afl-compiler-rt.o", argv[0]);
-
- if (!ptr) {
-
- FATAL(
- "Unable to find 'afl-compiler-rt.o'. Please set the AFL_PATH "
- "environment variable.");
-
- }
-
- if (debug) { DEBUGF("rt=%s obj_path=%s\n", ptr, obj_path); }
-
- ck_free(ptr);
-#endif
-
- edit_params(argc, argv, envp);
-
- if (debug) {
-
- DEBUGF("cd '%s';", getthecwd());
- for (i = 0; i < (s32)cc_par_cnt; i++)
- SAYF(" '%s'", cc_params[i]);
- SAYF("\n");
- fflush(stdout);
- fflush(stderr);
-
- }
-
- if (passthrough) {
-
- argv[0] = cc_params[0];
- execvp(cc_params[0], (char **)argv);
-
- } else {
-
- execvp(cc_params[0], (char **)cc_params);
-
- }
-
- FATAL("Oops, failed to execute '%s' - check your PATH", cc_params[0]);
+ FATAL("Oops, failed to execute '%s' - check your PATH", aflcc->cc_params[0]);
return 0;
diff --git a/src/afl-common.c b/src/afl-common.c
index 84ddefd..87003b0 100644
--- a/src/afl-common.c
+++ b/src/afl-common.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -98,12 +98,27 @@
}
/* LSAN does not support abort_on_error=1. (is this still true??) */
+ u8 should_detect_leaks = 0;
if (!have_lsan_options) {
u8 buf[2048] = "";
if (!have_san_options) { strcpy(buf, default_options); }
- strcat(buf, "exitcode=" STRINGIFY(LSAN_ERROR) ":fast_unwind_on_malloc=0:print_suppressions=0:detect_leaks=1:malloc_context_size=30:");
+ if (have_asan_options) {
+
+ if (NULL != strstr(have_asan_options, "detect_leaks=0")) {
+
+ strcat(buf, "exitcode=" STRINGIFY(LSAN_ERROR) ":fast_unwind_on_malloc=0:print_suppressions=0:detect_leaks=0:malloc_context_size=0:");
+
+ } else {
+
+ should_detect_leaks = 1;
+ strcat(buf, "exitcode=" STRINGIFY(LSAN_ERROR) ":fast_unwind_on_malloc=0:print_suppressions=0:detect_leaks=1:malloc_context_size=30:");
+
+ }
+
+ }
+
setenv("LSAN_OPTIONS", buf, 1);
}
@@ -112,7 +127,15 @@
if (!have_lsan_options) {
- strcat(default_options, "detect_leaks=0:malloc_context_size=0:");
+ if (should_detect_leaks) {
+
+ strcat(default_options, "detect_leaks=1:malloc_context_size=30:");
+
+ } else {
+
+ strcat(default_options, "detect_leaks=0:malloc_context_size=0:");
+
+ }
}
@@ -403,7 +426,7 @@
FATAL(
"Unexpected overflow when processing ENV. This should never "
- "happend.");
+ "had happened.");
}
@@ -1298,6 +1321,35 @@
}
+/* Unsafe describe time delta as simple string.
+ Returns a pointer to buf for convenience. */
+
+u8 *u_simplestring_time_diff(u8 *buf, u64 cur_ms, u64 event_ms) {
+
+ if (!event_ms) {
+
+ sprintf(buf, "00:00:00");
+
+ } else {
+
+ u64 delta;
+ s32 t_d, t_h, t_m, t_s;
+
+ delta = cur_ms - event_ms;
+
+ t_d = delta / 1000 / 60 / 60 / 24;
+ t_h = (delta / 1000 / 60 / 60) % 24;
+ t_m = (delta / 1000 / 60) % 60;
+ t_s = (delta / 1000) % 60;
+
+ sprintf(buf, "%d:%02d:%02d:%02d", t_d, t_h, t_m, t_s);
+
+ }
+
+ return buf;
+
+}
+
/* Reads the map size from ENV */
u32 get_map_size(void) {
diff --git a/src/afl-forkserver.c b/src/afl-forkserver.c
index 7322f1a..0a77d61 100644
--- a/src/afl-forkserver.c
+++ b/src/afl-forkserver.c
@@ -13,7 +13,7 @@
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -129,6 +129,10 @@
plugin->nyx_remove_work_dir = dlsym(handle, "nyx_remove_work_dir");
if (plugin->nyx_remove_work_dir == NULL) { goto fail; }
+ plugin->nyx_config_set_aux_buffer_size =
+ dlsym(handle, "nyx_config_set_aux_buffer_size");
+ if (plugin->nyx_config_set_aux_buffer_size == NULL) { goto fail; }
+
OKF("libnyx plugin is ready!");
return plugin;
@@ -160,6 +164,8 @@
}
+ if (fsrv->nyx_log_fd >= 0) { close(fsrv->nyx_log_fd); }
+
}
}
@@ -214,6 +220,7 @@
fsrv->nyx_bind_cpu_id = 0xFFFFFFFF;
fsrv->nyx_use_tmp_workdir = false;
fsrv->nyx_tmp_workdir_path = NULL;
+ fsrv->nyx_log_fd = -1;
#endif
// this structure needs default so we initialize it if this was not done
@@ -265,6 +272,7 @@
fsrv_to->uses_crash_exitcode = from->uses_crash_exitcode;
fsrv_to->crash_exitcode = from->crash_exitcode;
fsrv_to->child_kill_signal = from->child_kill_signal;
+ fsrv_to->fsrv_kill_signal = from->fsrv_kill_signal;
fsrv_to->debug = from->debug;
// These are forkserver specific.
@@ -571,6 +579,22 @@
fsrv->nyx_handlers->nyx_config_set_input_buffer_write_protection(nyx_config,
true);
+ char *nyx_log_path = getenv("AFL_NYX_LOG");
+ if (nyx_log_path) {
+
+ fsrv->nyx_log_fd =
+ open(nyx_log_path, O_CREAT | O_TRUNC | O_WRONLY, DEFAULT_PERMISSION);
+ if (fsrv->nyx_log_fd < 0) {
+
+ NYX_PRE_FATAL(fsrv, "AFL_NYX_LOG path could not be written");
+
+ }
+
+ fsrv->nyx_handlers->nyx_config_set_hprintf_fd(nyx_config,
+ fsrv->nyx_log_fd);
+
+ }
+
if (fsrv->nyx_standalone) {
fsrv->nyx_handlers->nyx_config_set_process_role(nyx_config, StandAlone);
@@ -589,23 +613,42 @@
}
- if (getenv("NYX_REUSE_SNAPSHOT") != NULL) {
+ if (getenv("AFL_NYX_AUX_SIZE") != NULL) {
- if (access(getenv("NYX_REUSE_SNAPSHOT"), F_OK) == -1) {
+ fsrv->nyx_aux_string_len = atoi(getenv("AFL_NYX_AUX_SIZE"));
- NYX_PRE_FATAL(fsrv, "NYX_REUSE_SNAPSHOT path does not exist");
+ if (fsrv->nyx_handlers->nyx_config_set_aux_buffer_size(
+ nyx_config, fsrv->nyx_aux_string_len) != 1) {
+
+ NYX_PRE_FATAL(fsrv,
+ "Invalid AFL_NYX_AUX_SIZE value set (must be a multiple "
+ "of 4096) ...");
+
+ }
+
+ } else {
+
+ fsrv->nyx_aux_string_len = 0x1000;
+
+ }
+
+ if (getenv("AFL_NYX_REUSE_SNAPSHOT") != NULL) {
+
+ if (access(getenv("AFL_NYX_REUSE_SNAPSHOT"), F_OK) == -1) {
+
+ NYX_PRE_FATAL(fsrv, "AFL_NYX_REUSE_SNAPSHOT path does not exist");
}
/* stupid sanity check to avoid passing an empty or invalid snapshot
* directory */
char *snapshot_file_path =
- alloc_printf("%s/global.state", getenv("NYX_REUSE_SNAPSHOT"));
+ alloc_printf("%s/global.state", getenv("AFL_NYX_REUSE_SNAPSHOT"));
if (access(snapshot_file_path, R_OK) == -1) {
- NYX_PRE_FATAL(
- fsrv,
- "NYX_REUSE_SNAPSHOT path does not contain a valid Nyx snapshot");
+ NYX_PRE_FATAL(fsrv,
+ "AFL_NYX_REUSE_SNAPSHOT path does not contain a valid "
+ "Nyx snapshot");
}
@@ -617,13 +660,14 @@
char *workdir_snapshot_path =
alloc_printf("%s/workdir/snapshot", outdir_path_absolute);
char *reuse_snapshot_path_real =
- realpath(getenv("NYX_REUSE_SNAPSHOT"), NULL);
+ realpath(getenv("AFL_NYX_REUSE_SNAPSHOT"), NULL);
if (strcmp(workdir_snapshot_path, reuse_snapshot_path_real) == 0) {
- NYX_PRE_FATAL(fsrv,
- "NYX_REUSE_SNAPSHOT path is located in current workdir "
- "(use another output directory)");
+ NYX_PRE_FATAL(
+ fsrv,
+ "AFL_NYX_REUSE_SNAPSHOT path is located in current workdir "
+ "(use another output directory)");
}
@@ -631,12 +675,11 @@
ck_free(workdir_snapshot_path);
fsrv->nyx_handlers->nyx_config_set_reuse_snapshot_path(
- nyx_config, getenv("NYX_REUSE_SNAPSHOT"));
+ nyx_config, getenv("AFL_NYX_REUSE_SNAPSHOT"));
}
- fsrv->nyx_runner =
- fsrv->nyx_handlers->nyx_new(nyx_config, fsrv->nyx_bind_cpu_id);
+ fsrv->nyx_runner = fsrv->nyx_handlers->nyx_new(nyx_config, fsrv->nyx_id);
ck_free(workdir_path);
ck_free(outdir_path_absolute);
@@ -653,27 +696,27 @@
fsrv->nyx_handlers->nyx_get_bitmap_buffer(fsrv->nyx_runner);
fsrv->nyx_handlers->nyx_option_set_reload_mode(
- fsrv->nyx_runner, getenv("NYX_DISABLE_SNAPSHOT_MODE") == NULL);
+ fsrv->nyx_runner, getenv("AFL_NYX_DISABLE_SNAPSHOT_MODE") == NULL);
fsrv->nyx_handlers->nyx_option_apply(fsrv->nyx_runner);
fsrv->nyx_handlers->nyx_option_set_timeout(fsrv->nyx_runner, 2, 0);
fsrv->nyx_handlers->nyx_option_apply(fsrv->nyx_runner);
- fsrv->nyx_aux_string = malloc(0x1000);
- memset(fsrv->nyx_aux_string, 0, 0x1000);
+ fsrv->nyx_aux_string = malloc(fsrv->nyx_aux_string_len);
+ memset(fsrv->nyx_aux_string, 0, fsrv->nyx_aux_string_len);
/* dry run */
fsrv->nyx_handlers->nyx_set_afl_input(fsrv->nyx_runner, "INIT", 4);
switch (fsrv->nyx_handlers->nyx_exec(fsrv->nyx_runner)) {
case Abort:
- NYX_PRE_FATAL(fsrv, "Error: Nyx abort occured...");
+ NYX_PRE_FATAL(fsrv, "Error: Nyx abort occurred...");
break;
case IoError:
NYX_PRE_FATAL(fsrv, "Error: QEMU-Nyx has died...");
break;
case Error:
- NYX_PRE_FATAL(fsrv, "Error: Nyx runtime error has occured...");
+ NYX_PRE_FATAL(fsrv, "Error: Nyx runtime error has occurred...");
break;
default:
break;
@@ -974,6 +1017,14 @@
if (rlen == 4) {
+ if (status >= 0x41464c00 && status <= 0x41464cff) {
+
+ FATAL(
+ "Target uses the new forkserver model, you need to switch to a newer "
+ "afl-fuzz too!");
+
+ }
+
if (!be_quiet) { OKF("All right - fork server is up."); }
if (getenv("AFL_DEBUG")) {
@@ -1581,7 +1632,7 @@
FATAL("FixMe: Nyx InvalidWriteToPayload handler is missing");
break;
case Abort:
- FATAL("Error: Nyx abort occured...");
+ FATAL("Error: Nyx abort occurred...");
case IoError:
if (*stop_soon_p) {
@@ -1595,7 +1646,7 @@
break;
case Error:
- FATAL("Error: Nyx runtime error has occured...");
+ FATAL("Error: Nyx runtime error has occurred...");
break;
}
diff --git a/src/afl-fuzz-bitmap.c b/src/afl-fuzz-bitmap.c
index 556bb5d..d056ac9 100644
--- a/src/afl-fuzz-bitmap.c
+++ b/src/afl-fuzz-bitmap.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -459,6 +459,17 @@
if (unlikely(fault == FSRV_RUN_TMOUT && afl->afl_env.afl_ignore_timeouts)) {
+ if (likely(afl->schedule >= FAST && afl->schedule <= RARE)) {
+
+ classify_counts(&afl->fsrv);
+ u64 cksum = hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
+
+ // Saturated increment
+ if (likely(afl->n_fuzz[cksum % N_FUZZ_SIZE] < 0xFFFFFFFF))
+ afl->n_fuzz[cksum % N_FUZZ_SIZE]++;
+
+ }
+
return 0;
}
@@ -474,7 +485,7 @@
/* Generating a hash on every input is super expensive. Bad idea and should
only be used for special schedules */
- if (unlikely(afl->schedule >= FAST && afl->schedule <= RARE)) {
+ if (likely(afl->schedule >= FAST && afl->schedule <= RARE)) {
classify_counts(&afl->fsrv);
classified = 1;
@@ -533,6 +544,19 @@
close(fd);
add_to_queue(afl, queue_fn, len, 0);
+ if (unlikely(afl->fuzz_mode) &&
+ likely(afl->switch_fuzz_mode && !afl->non_instrumented_mode)) {
+
+ if (afl->afl_env.afl_no_ui) {
+
+ ACTF("New coverage found, switching back to exploration mode.");
+
+ }
+
+ afl->fuzz_mode = 0;
+
+ }
+
#ifdef INTROSPECTION
if (afl->custom_mutators_count && afl->current_custom_fuzz) {
@@ -853,7 +877,8 @@
if (unlikely(fd < 0)) { PFATAL("Unable to create '%s'", fn_log); }
u32 nyx_aux_string_len = afl->fsrv.nyx_handlers->nyx_get_aux_string(
- afl->fsrv.nyx_runner, afl->fsrv.nyx_aux_string, 0x1000);
+ afl->fsrv.nyx_runner, afl->fsrv.nyx_aux_string,
+ afl->fsrv.nyx_aux_string_len);
ck_write(fd, afl->fsrv.nyx_aux_string, nyx_aux_string_len, fn_log);
close(fd);
diff --git a/src/afl-fuzz-cmplog.c b/src/afl-fuzz-cmplog.c
index 3e6432c..21f34e1 100644
--- a/src/afl-fuzz-cmplog.c
+++ b/src/afl-fuzz-cmplog.c
@@ -11,7 +11,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/src/afl-fuzz-extras.c b/src/afl-fuzz-extras.c
index f6de11a..3b1d13f 100644
--- a/src/afl-fuzz-extras.c
+++ b/src/afl-fuzz-extras.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -176,6 +176,8 @@
afl->extras =
afl_realloc((void **)&afl->extras,
(afl->extras_cnt + 1) * sizeof(struct extra_data));
+ char *hexdigits = "0123456789abcdef";
+
if (unlikely(!afl->extras)) { PFATAL("alloc"); }
wptr = afl->extras[afl->extras_cnt].data = ck_alloc(rptr - lptr);
@@ -184,13 +186,12 @@
while (*lptr) {
- char *hexdigits = "0123456789abcdef";
-
switch (*lptr) {
case 1 ... 31:
case 128 ... 255:
WARNF("Non-printable characters in line %u.", cur_line);
+ ++lptr;
continue;
break;
diff --git a/src/afl-fuzz-init.c b/src/afl-fuzz-init.c
index 13802f4..76291cc 100644
--- a/src/afl-fuzz-init.c
+++ b/src/afl-fuzz-init.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -124,6 +124,9 @@
}
WARNF("Not binding to a CPU core (AFL_NO_AFFINITY set).");
+ #ifdef __linux__
+ if (afl->fsrv.nyx_mode) { afl->fsrv.nyx_bind_cpu_id = 0; }
+ #endif
return;
}
@@ -151,6 +154,9 @@
} else {
OKF("CPU binding request using -b %d successful.", afl->cpu_to_bind);
+ #ifdef __linux__
+ if (afl->fsrv.nyx_mode) { afl->fsrv.nyx_bind_cpu_id = afl->cpu_to_bind; }
+ #endif
}
@@ -942,6 +948,7 @@
if (!q->was_fuzzed) {
q->was_fuzzed = 1;
+ afl->reinit_table = 1;
--afl->pending_not_fuzzed;
--afl->active_items;
@@ -951,19 +958,48 @@
} else {
- SAYF("\n" cLRD "[-] " cRST
- "The program took more than %u ms to process one of the initial "
- "test cases.\n"
- " This is bad news; raising the limit with the -t option is "
- "possible, but\n"
- " will probably make the fuzzing process extremely slow.\n\n"
+ static int say_once = 0;
- " If this test case is just a fluke, the other option is to "
- "just avoid it\n"
- " altogether, and find one that is less of a CPU hog.\n",
- afl->fsrv.exec_tmout);
+ if (!say_once) {
- FATAL("Test case '%s' results in a timeout", fn);
+ SAYF(
+ "\n" cLRD "[-] " cRST
+ "The program took more than %u ms to process one of the "
+ "initial "
+ "test cases.\n"
+ " This is bad news; raising the limit with the -t option is "
+ "possible, but\n"
+ " will probably make the fuzzing process extremely slow.\n\n"
+
+ " If this test case is just a fluke, the other option is to "
+ "just avoid it\n"
+ " altogether, and find one that is less of a CPU hog.\n",
+ afl->fsrv.exec_tmout);
+
+ if (!afl->afl_env.afl_ignore_seed_problems) {
+
+ FATAL("Test case '%s' results in a timeout", fn);
+
+ }
+
+ say_once = 1;
+
+ }
+
+ if (!q->was_fuzzed) {
+
+ q->was_fuzzed = 1;
+ afl->reinit_table = 1;
+ --afl->pending_not_fuzzed;
+ --afl->active_items;
+
+ }
+
+ q->disabled = 1;
+ q->perf_score = 0;
+
+ WARNF("Test case '%s' results in a timeout, skipping", fn);
+ break;
}
@@ -1058,7 +1094,19 @@
} else {
- WARNF("Test case '%s' results in a crash, skipping", fn);
+ if (afl->afl_env.afl_crashing_seeds_as_new_crash) {
+
+ WARNF(
+ "Test case '%s' results in a crash, "
+ "as AFL_CRASHING_SEEDS_AS_NEW_CRASH is set, "
+ "saving as a new crash",
+ fn);
+
+ } else {
+
+ WARNF("Test case '%s' results in a crash, skipping", fn);
+
+ }
}
@@ -1073,40 +1121,100 @@
if (!q->was_fuzzed) {
q->was_fuzzed = 1;
+ afl->reinit_table = 1;
--afl->pending_not_fuzzed;
--afl->active_items;
}
- q->disabled = 1;
- q->perf_score = 0;
+ /* Crashing seeds will be regarded as new crashes on startup */
+ if (afl->afl_env.afl_crashing_seeds_as_new_crash) {
- u32 i = 0;
- while (unlikely(i < afl->queued_items && afl->queue_buf[i] &&
- afl->queue_buf[i]->disabled)) {
+ ++afl->total_crashes;
- ++i;
+ if (likely(!afl->non_instrumented_mode)) {
- }
+ classify_counts(&afl->fsrv);
- if (i < afl->queued_items && afl->queue_buf[i]) {
+ simplify_trace(afl, afl->fsrv.trace_bits);
- afl->queue = afl->queue_buf[i];
+ if (!has_new_bits(afl, afl->virgin_crash)) { break; }
+
+ }
+
+ if (unlikely(!afl->saved_crashes) &&
+ (afl->afl_env.afl_no_crash_readme != 1)) {
+
+ write_crash_readme(afl);
+
+ }
+
+ u8 crash_fn[PATH_MAX];
+ u8 *use_name = strstr(q->fname, ",orig:");
+
+ afl->stage_name = "dry_run";
+ afl->stage_short = "dry_run";
+
+#ifndef SIMPLE_FILES
+
+ snprintf(crash_fn, PATH_MAX, "%s/crashes/id:%06llu,sig:%02u,%s%s",
+ afl->out_dir, afl->saved_crashes, afl->fsrv.last_kill_signal,
+ describe_op(afl, 0,
+ NAME_MAX - strlen("id:000000,sig:00,") -
+ strlen(use_name)),
+ use_name);
+
+#else
+
+ snprintf(crash_fn, PATH_MAX, "%s/crashes/id_%06llu_%02u",
+ afl->out_dir, afl->saved_crashes,
+ afl->fsrv.last_kill_signal);
+
+#endif
+
+ ++afl->saved_crashes;
+
+ fd = open(crash_fn, O_WRONLY | O_CREAT | O_EXCL, DEFAULT_PERMISSION);
+ if (unlikely(fd < 0)) { PFATAL("Unable to create '%s'", crash_fn); }
+ ck_write(fd, use_mem, read_len, crash_fn);
+ close(fd);
+
+ afl->last_crash_time = get_cur_time();
+ afl->last_crash_execs = afl->fsrv.total_execs;
} else {
- afl->queue = afl->queue_buf[0];
+ u32 i = 0;
+ while (unlikely(i < afl->queued_items && afl->queue_buf[i] &&
+ afl->queue_buf[i]->disabled)) {
+
+ ++i;
+
+ }
+
+ if (i < afl->queued_items && afl->queue_buf[i]) {
+
+ afl->queue = afl->queue_buf[i];
+
+ } else {
+
+ afl->queue = afl->queue_buf[0];
+
+ }
+
+ afl->max_depth = 0;
+ for (i = 0; i < afl->queued_items && likely(afl->queue_buf[i]); i++) {
+
+ if (!afl->queue_buf[i]->disabled &&
+ afl->queue_buf[i]->depth > afl->max_depth)
+ afl->max_depth = afl->queue_buf[i]->depth;
+
+ }
}
- afl->max_depth = 0;
- for (i = 0; i < afl->queued_items && likely(afl->queue_buf[i]); i++) {
-
- if (!afl->queue_buf[i]->disabled &&
- afl->queue_buf[i]->depth > afl->max_depth)
- afl->max_depth = afl->queue_buf[i]->depth;
-
- }
+ q->disabled = 1;
+ q->perf_score = 0;
break;
@@ -1192,6 +1300,7 @@
if (!p->was_fuzzed) {
p->was_fuzzed = 1;
+ afl->reinit_table = 1;
--afl->pending_not_fuzzed;
--afl->active_items;
@@ -1212,6 +1321,7 @@
if (!q->was_fuzzed) {
q->was_fuzzed = 1;
+ afl->reinit_table = 1;
--afl->pending_not_fuzzed;
--afl->active_items;
@@ -1542,8 +1652,8 @@
processes well. */
FILE *f = fopen("/proc/stat", "r");
- u8 tmp[1024];
- u32 val = 0;
+ u8 tmp[1024];
+ u32 val = 0;
if (!f) { return 0; }
@@ -2126,6 +2236,21 @@
fflush(afl->fsrv.plot_file);
+#ifdef INTROSPECTION
+
+ tmp = alloc_printf("%s/plot_det_data", afl->out_dir);
+
+ int fd = open(tmp, O_WRONLY | O_CREAT, DEFAULT_PERMISSION);
+ if (fd < 0) { PFATAL("Unable to create '%s'", tmp); }
+ ck_free(tmp);
+
+ afl->fsrv.det_plot_file = fdopen(fd, "w");
+ if (!afl->fsrv.det_plot_file) { PFATAL("fdopen() failed"); }
+
+ if (afl->in_place_resume) { fseek(afl->fsrv.det_plot_file, 0, SEEK_END); }
+
+#endif
+
/* ignore errors */
}
@@ -2199,7 +2324,8 @@
reporting the awful way. */
#if !TARGET_OS_IPHONE
- if (system("launchctl list 2>/dev/null | grep -q '\\.ReportCrash$'")) return;
+ if (system("launchctl list 2>/dev/null | grep -q '\\.ReportCrash\\>'"))
+ return;
SAYF(
"\n" cLRD "[-] " cRST
@@ -2226,7 +2352,7 @@
*BSD, so we can just let it slide for now. */
s32 fd = open("/proc/sys/kernel/core_pattern", O_RDONLY);
- u8 fchar;
+ u8 fchar;
if (fd < 0) { return; }
@@ -2365,7 +2491,7 @@
FATAL("Suboptimal CPU scaling governor");
#elif defined __APPLE__
- u64 min = 0, max = 0;
+ u64 min = 0, max = 0;
size_t mlen = sizeof(min);
if (afl->afl_env.afl_skip_cpufreq) return;
diff --git a/src/afl-fuzz-mutators.c b/src/afl-fuzz-mutators.c
index 64dbe7c..ae4d666 100644
--- a/src/afl-fuzz-mutators.c
+++ b/src/afl-fuzz-mutators.c
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -397,6 +397,18 @@
}
+ /* "afl_custom_post_run", optional */
+ mutator->afl_custom_post_run = dlsym(dh, "afl_custom_post_run");
+ if (!mutator->afl_custom_post_run) {
+
+ ACTF("optional symbol 'afl_custom_post_run' not found.");
+
+ } else {
+
+ OKF("Found 'afl_custom_post_run'.");
+
+ }
+
/* "afl_custom_queue_new_entry", optional */
mutator->afl_custom_queue_new_entry = dlsym(dh, "afl_custom_queue_new_entry");
if (!mutator->afl_custom_queue_new_entry) {
diff --git a/src/afl-fuzz-one.c b/src/afl-fuzz-one.c
index 5c71fc5..d9c074e 100644
--- a/src/afl-fuzz-one.c
+++ b/src/afl-fuzz-one.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -27,6 +27,7 @@
#include <string.h>
#include <limits.h>
#include "cmplog.h"
+#include "afl-mutations.h"
/* MOpt */
@@ -70,50 +71,6 @@
}
-/* Helper to choose random block len for block operations in fuzz_one().
- Doesn't return zero, provided that max_len is > 0. */
-
-static inline u32 choose_block_len(afl_state_t *afl, u32 limit) {
-
- u32 min_value, max_value;
- u32 rlim = MIN(afl->queue_cycle, (u32)3);
-
- if (unlikely(!afl->run_over10m)) { rlim = 1; }
-
- switch (rand_below(afl, rlim)) {
-
- case 0:
- min_value = 1;
- max_value = HAVOC_BLK_SMALL;
- break;
-
- case 1:
- min_value = HAVOC_BLK_SMALL;
- max_value = HAVOC_BLK_MEDIUM;
- break;
-
- default:
-
- if (likely(rand_below(afl, 10))) {
-
- min_value = HAVOC_BLK_MEDIUM;
- max_value = HAVOC_BLK_LARGE;
-
- } else {
-
- min_value = HAVOC_BLK_LARGE;
- max_value = HAVOC_BLK_XL;
-
- }
-
- }
-
- if (min_value >= limit) { min_value = 1; }
-
- return min_value + rand_below(afl, MIN(max_value, limit) - min_value + 1);
-
-}
-
/* Helper function to see if a particular change (xor_val = old ^ new) could
be a product of deterministic bit flips with the lengths and stepovers
attempted by afl-fuzz. This is used to avoid dupes in some of the
@@ -372,9 +329,9 @@
u32 len, temp_len;
u32 j;
u32 i;
- u8 *in_buf, *out_buf, *orig_in, *ex_tmp, *eff_map = 0;
+ u8 *in_buf, *out_buf, *orig_in, *ex_tmp;
u64 havoc_queued = 0, orig_hit_cnt, new_hit_cnt = 0, prev_cksum, _prev_cksum;
- u32 splice_cycle = 0, perf_score = 100, orig_perf, eff_cnt = 1;
+ u32 splice_cycle = 0, perf_score = 100, orig_perf;
u8 ret_val = 1, doing_det = 0;
@@ -442,18 +399,24 @@
#endif /* ^IGNORE_FINDS */
- if (unlikely(afl->not_on_tty)) {
+ if (likely(afl->not_on_tty)) {
+ u8 time_tmp[64];
+
+ u_simplestring_time_diff(time_tmp, afl->prev_run_time + get_cur_time(),
+ afl->start_time);
ACTF(
- "Fuzzing test case #%u (%u total, %llu crashes saved, "
+ "Fuzzing test case #%u (%u total, %llu crashes saved, state: %s, "
+ "mode=%s, "
"perf_score=%0.0f, weight=%0.0f, favorite=%u, was_fuzzed=%u, "
- "exec_us=%llu, hits=%u, map=%u, ascii=%u)...",
+ "exec_us=%llu, hits=%u, map=%u, ascii=%u, run_time=%s)...",
afl->current_entry, afl->queued_items, afl->saved_crashes,
+ get_fuzzing_state(afl), afl->fuzz_mode ? "exploit" : "explore",
afl->queue_cur->perf_score, afl->queue_cur->weight,
afl->queue_cur->favored, afl->queue_cur->was_fuzzed,
afl->queue_cur->exec_us,
likely(afl->n_fuzz) ? afl->n_fuzz[afl->queue_cur->n_fuzz_entry] : 0,
- afl->queue_cur->bitmap_size, afl->queue_cur->is_ascii);
+ afl->queue_cur->bitmap_size, afl->queue_cur->is_ascii, time_tmp);
fflush(stdout);
}
@@ -582,12 +545,37 @@
}
+ u64 before_det_time = get_cur_time();
+#ifdef INTROSPECTION
+
+ u64 before_havoc_time;
+ u32 before_det_findings = afl->queued_items,
+ before_det_edges = count_non_255_bytes(afl, afl->virgin_bits),
+ before_havoc_findings, before_havoc_edges;
+ u8 is_logged = 0;
+
+#endif
+ if (!afl->skip_deterministic) {
+
+ if (!skip_deterministic_stage(afl, in_buf, out_buf, len, before_det_time)) {
+
+ goto abandon_entry;
+
+ }
+
+ }
+
+ u8 *skip_eff_map = afl->queue_cur->skipdet_e->skip_eff_map;
+
/* Skip right away if -d is given, if it has not been chosen sufficiently
often to warrant the expensive deterministic stage (fuzz_level), or
if it has gone through deterministic testing in earlier, resumed runs
(passed_det). */
+ /* if skipdet decide to skip the seed or no interesting bytes found,
+ we skip the whole deterministic stage as well */
if (likely(afl->skip_deterministic) || likely(afl->queue_cur->passed_det) ||
+ likely(!afl->queue_cur->skipdet_e->quick_eff_bytes) ||
likely(perf_score <
(afl->queue_cur->depth * 30 <= afl->havoc_max_mult * 100
? afl->queue_cur->depth * 30
@@ -614,13 +602,13 @@
* SIMPLE BITFLIP (+dictionary construction) *
*********************************************/
-#define FLIP_BIT(_ar, _b) \
- do { \
- \
- u8 *_arf = (u8 *)(_ar); \
- u32 _bf = (_b); \
- _arf[(_bf) >> 3] ^= (128 >> ((_bf)&7)); \
- \
+#define FLIP_BIT(_ar, _b) \
+ do { \
+ \
+ u8 *_arf = (u8 *)(_ar); \
+ u32 _bf = (_b); \
+ _arf[(_bf) >> 3] ^= (128 >> ((_bf) & 7)); \
+ \
} while (0)
/* Single walking bit. */
@@ -646,6 +634,10 @@
afl->stage_cur_byte = afl->stage_cur >> 3;
+ if (!skip_eff_map[afl->stage_cur_byte]) continue;
+
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
+
FLIP_BIT(out_buf, afl->stage_cur);
#ifdef INTROSPECTION
@@ -762,6 +754,10 @@
afl->stage_cur_byte = afl->stage_cur >> 3;
+ if (!skip_eff_map[afl->stage_cur_byte]) continue;
+
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
+
FLIP_BIT(out_buf, afl->stage_cur);
FLIP_BIT(out_buf, afl->stage_cur + 1);
@@ -797,6 +793,10 @@
afl->stage_cur_byte = afl->stage_cur >> 3;
+ if (!skip_eff_map[afl->stage_cur_byte]) continue;
+
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
+
FLIP_BIT(out_buf, afl->stage_cur);
FLIP_BIT(out_buf, afl->stage_cur + 1);
FLIP_BIT(out_buf, afl->stage_cur + 2);
@@ -824,34 +824,6 @@
afl->queue_cur->stats_mutated += afl->stage_max;
#endif
- /* Effector map setup. These macros calculate:
-
- EFF_APOS - position of a particular file offset in the map.
- EFF_ALEN - length of a map with a particular number of bytes.
- EFF_SPAN_ALEN - map span for a sequence of bytes.
-
- */
-
-#define EFF_APOS(_p) ((_p) >> EFF_MAP_SCALE2)
-#define EFF_REM(_x) ((_x) & ((1 << EFF_MAP_SCALE2) - 1))
-#define EFF_ALEN(_l) (EFF_APOS(_l) + !!EFF_REM(_l))
-#define EFF_SPAN_ALEN(_p, _l) (EFF_APOS((_p) + (_l)-1) - EFF_APOS(_p) + 1)
-
- /* Initialize effector map for the next step (see comments below). Always
- flag first and last byte as doing something. */
-
- eff_map = afl_realloc(AFL_BUF_PARAM(eff), EFF_ALEN(len));
- if (unlikely(!eff_map)) { PFATAL("alloc"); }
- memset(eff_map, 0, EFF_ALEN(len));
- eff_map[0] = 1;
-
- if (EFF_APOS(len - 1) != 0) {
-
- eff_map[EFF_APOS(len - 1)] = 1;
- ++eff_cnt;
-
- }
-
/* Walking byte. */
afl->stage_name = "bitflip 8/8";
@@ -865,6 +837,10 @@
afl->stage_cur_byte = afl->stage_cur;
+ if (!skip_eff_map[afl->stage_cur_byte]) continue;
+
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
+
out_buf[afl->stage_cur] ^= 0xFF;
#ifdef INTROSPECTION
@@ -874,59 +850,19 @@
if (common_fuzz_stuff(afl, out_buf, len)) { goto abandon_entry; }
- /* We also use this stage to pull off a simple trick: we identify
- bytes that seem to have no effect on the current execution path
- even when fully flipped - and we skip them during more expensive
- deterministic stages, such as arithmetics or known ints. */
-
- if (!eff_map[EFF_APOS(afl->stage_cur)]) {
-
- u64 cksum;
-
- /* If in non-instrumented mode or if the file is very short, just flag
- everything without wasting time on checksums. */
-
- if (!afl->non_instrumented_mode && len >= EFF_MIN_LEN) {
-
- cksum = hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
-
- } else {
-
- cksum = ~prev_cksum;
-
- }
-
- if (cksum != prev_cksum) {
-
- eff_map[EFF_APOS(afl->stage_cur)] = 1;
- ++eff_cnt;
-
- }
-
- }
-
out_buf[afl->stage_cur] ^= 0xFF;
}
- /* If the effector map is more than EFF_MAX_PERC dense, just flag the
- whole thing as worth fuzzing, since we wouldn't be saving much time
- anyway. */
+ /* New effective bytes calculation. */
- if (eff_cnt != (u32)EFF_ALEN(len) &&
- eff_cnt * 100 / EFF_ALEN(len) > EFF_MAX_PERC) {
+ for (i = 0; i < len; i++) {
- memset(eff_map, 1, EFF_ALEN(len));
-
- afl->blocks_eff_select += EFF_ALEN(len);
-
- } else {
-
- afl->blocks_eff_select += eff_cnt;
+ if (skip_eff_map[i]) afl->blocks_eff_select += 1;
}
- afl->blocks_eff_total += EFF_ALEN(len);
+ afl->blocks_eff_total += len;
new_hit_cnt = afl->queued_items + afl->saved_crashes;
@@ -951,12 +887,9 @@
/* Let's consult the effector map... */
- if (!eff_map[EFF_APOS(i)] && !eff_map[EFF_APOS(i + 1)]) {
+ if (!skip_eff_map[i]) continue;
- --afl->stage_max;
- continue;
-
- }
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
afl->stage_cur_byte = i;
@@ -996,13 +929,10 @@
for (i = 0; i < len - 3; ++i) {
/* Let's consult the effector map... */
- if (!eff_map[EFF_APOS(i)] && !eff_map[EFF_APOS(i + 1)] &&
- !eff_map[EFF_APOS(i + 2)] && !eff_map[EFF_APOS(i + 3)]) {
- --afl->stage_max;
- continue;
+ if (!skip_eff_map[i]) continue;
- }
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
afl->stage_cur_byte = i;
@@ -1053,12 +983,9 @@
/* Let's consult the effector map... */
- if (!eff_map[EFF_APOS(i)]) {
+ if (!skip_eff_map[i]) continue;
- afl->stage_max -= 2 * ARITH_MAX;
- continue;
-
- }
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
afl->stage_cur_byte = i;
@@ -1140,12 +1067,9 @@
/* Let's consult the effector map... */
- if (!eff_map[EFF_APOS(i)] && !eff_map[EFF_APOS(i + 1)]) {
+ if (!skip_eff_map[i]) continue;
- afl->stage_max -= 4 * ARITH_MAX;
- continue;
-
- }
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
afl->stage_cur_byte = i;
@@ -1273,13 +1197,9 @@
/* Let's consult the effector map... */
- if (!eff_map[EFF_APOS(i)] && !eff_map[EFF_APOS(i + 1)] &&
- !eff_map[EFF_APOS(i + 2)] && !eff_map[EFF_APOS(i + 3)]) {
+ if (!skip_eff_map[i]) continue;
- afl->stage_max -= 4 * ARITH_MAX;
- continue;
-
- }
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
afl->stage_cur_byte = i;
@@ -1411,12 +1331,9 @@
/* Let's consult the effector map... */
- if (!eff_map[EFF_APOS(i)]) {
+ if (!skip_eff_map[i]) continue;
- afl->stage_max -= sizeof(interesting_8);
- continue;
-
- }
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
afl->stage_cur_byte = i;
@@ -1474,12 +1391,9 @@
/* Let's consult the effector map... */
- if (!eff_map[EFF_APOS(i)] && !eff_map[EFF_APOS(i + 1)]) {
+ if (!skip_eff_map[i]) continue;
- afl->stage_max -= sizeof(interesting_16);
- continue;
-
- }
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
afl->stage_cur_byte = i;
@@ -1565,13 +1479,9 @@
/* Let's consult the effector map... */
- if (!eff_map[EFF_APOS(i)] && !eff_map[EFF_APOS(i + 1)] &&
- !eff_map[EFF_APOS(i + 2)] && !eff_map[EFF_APOS(i + 3)]) {
+ if (!skip_eff_map[i]) continue;
- afl->stage_max -= sizeof(interesting_32) >> 1;
- continue;
-
- }
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
afl->stage_cur_byte = i;
@@ -1663,6 +1573,10 @@
u32 last_len = 0;
+ if (!skip_eff_map[i]) continue;
+
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
+
afl->stage_cur_byte = i;
/* Extras are sorted by size, from smallest to largest. This means
@@ -1680,9 +1594,7 @@
if ((afl->extras_cnt > afl->max_det_extras &&
rand_below(afl, afl->extras_cnt) >= afl->max_det_extras) ||
afl->extras[j].len > len - i ||
- !memcmp(afl->extras[j].data, out_buf + i, afl->extras[j].len) ||
- !memchr(eff_map + EFF_APOS(i), 1,
- EFF_SPAN_ALEN(i, afl->extras[j].len))) {
+ !memcmp(afl->extras[j].data, out_buf + i, afl->extras[j].len)) {
--afl->stage_max;
continue;
@@ -1730,6 +1642,10 @@
for (i = 0; i <= (u32)len; ++i) {
+ if (!skip_eff_map[i % len]) continue;
+
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
+
afl->stage_cur_byte = i;
for (j = 0; j < afl->extras_cnt; ++j) {
@@ -1792,6 +1708,10 @@
u32 last_len = 0;
+ if (!skip_eff_map[i]) continue;
+
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
+
afl->stage_cur_byte = i;
u32 min_extra_len = MIN(afl->a_extras_cnt, (u32)USE_AUTO_EXTRAS);
@@ -1800,9 +1720,7 @@
/* See the comment in the earlier code; extras are sorted by size. */
if (afl->a_extras[j].len > len - i ||
- !memcmp(afl->a_extras[j].data, out_buf + i, afl->a_extras[j].len) ||
- !memchr(eff_map + EFF_APOS(i), 1,
- EFF_SPAN_ALEN(i, afl->a_extras[j].len))) {
+ !memcmp(afl->a_extras[j].data, out_buf + i, afl->a_extras[j].len)) {
--afl->stage_max;
continue;
@@ -1850,6 +1768,10 @@
for (i = 0; i <= (u32)len; ++i) {
+ if (!skip_eff_map[i % len]) continue;
+
+ if (is_det_timeout(before_det_time, 0)) { goto custom_mutator_stage; }
+
afl->stage_cur_byte = i;
for (j = 0; j < afl->a_extras_cnt; ++j) {
@@ -1932,6 +1854,8 @@
if (el->afl_custom_fuzz) {
+ havoc_queued = afl->queued_items;
+
afl->current_custom_fuzz = el;
afl->stage_name = el->name_short;
@@ -2055,6 +1979,19 @@
havoc_stage:
+#ifdef INTROSPECTION
+
+ if (!is_logged) {
+
+ is_logged = 1;
+ before_havoc_findings = afl->queued_items;
+ before_havoc_edges = count_non_255_bytes(afl, afl->virgin_bits);
+ before_havoc_time = get_cur_time();
+
+ }
+
+#endif
+
if (unlikely(afl->custom_only)) {
/* Force UI update */
@@ -2123,45 +2060,97 @@
/* We essentially just do several thousand runs (depending on perf_score)
where we take the input file and make random stacked tweaks. */
-#define MAX_HAVOC_ENTRY 64
-#define MUTATE_ASCII_DICT 64
+ u32 *mutation_array;
+ u32 stack_max, rand_max; // stack_max_pow = afl->havoc_stack_pow2;
- u32 r_max, r;
+ switch (afl->input_mode) {
- r_max = (MAX_HAVOC_ENTRY + 1) + (afl->extras_cnt ? 4 : 0) +
- (afl->a_extras_cnt
- ? (unlikely(afl->cmplog_binary && afl->queue_cur->is_ascii)
- ? MUTATE_ASCII_DICT
- : 4)
- : 0);
+ case 1: { // TEXT
- if (unlikely(afl->expand_havoc && afl->ready_for_splicing_count > 1)) {
+ if (likely(afl->fuzz_mode == 0)) { // is exploration?
+ mutation_array = (unsigned int *)&binary_array;
+ rand_max = MUT_BIN_ARRAY_SIZE;
- /* add expensive havoc cases here, they are activated after a full
- cycle without finds happened */
+ } else { // exploitation mode
- r_max += 4;
+ mutation_array = (unsigned int *)&text_array;
+ rand_max = MUT_TXT_ARRAY_SIZE;
+
+ }
+
+ break;
+
+ }
+
+ case 2: { // BINARY
+
+ if (likely(afl->fuzz_mode == 0)) { // is exploration?
+ mutation_array = (unsigned int *)&mutation_strategy_exploration_binary;
+ rand_max = MUT_STRATEGY_ARRAY_SIZE;
+
+ } else { // exploitation mode
+
+ mutation_array = (unsigned int *)&mutation_strategy_exploitation_binary;
+ rand_max = MUT_STRATEGY_ARRAY_SIZE;
+ // or this one? we do not have enough binary bug benchmarks :-(
+ // mutation_array = (unsigned int *)&binary_array;
+ // rand_max = MUT_BIN_ARRAY_SIZE;
+
+ }
+
+ break;
+
+ }
+
+ default: { // DEFAULT/GENERIC
+
+ if (likely(afl->fuzz_mode == 0)) { // is exploration?
+ mutation_array = (unsigned int *)&binary_array;
+ rand_max = MUT_BIN_ARRAY_SIZE;
+
+ } else { // exploitation mode
+
+ mutation_array = (unsigned int *)&text_array;
+ rand_max = MUT_TXT_ARRAY_SIZE;
+
+ }
+
+ break;
+
+ }
}
- if (unlikely(get_cur_time() - afl->last_find_time > 5000 /* 5 seconds */ &&
- afl->ready_for_splicing_count > 1)) {
+ /*
+ if (temp_len < 64) {
- /* add expensive havoc cases here if there is no findings in the last 5s */
+ --stack_max_pow;
- r_max += 4;
+ } else if (temp_len <= 8096) {
+
+ ++stack_max_pow;
+
+ } else {
+
+ ++stack_max_pow;
}
+ */
+
+ stack_max = 1 << (1 + rand_below(afl, afl->havoc_stack_pow2));
+
+ // + (afl->extras_cnt ? 2 : 0) + (afl->a_extras_cnt ? 2 : 0);
+
for (afl->stage_cur = 0; afl->stage_cur < afl->stage_max; ++afl->stage_cur) {
- u32 use_stacking = 1 << (1 + rand_below(afl, afl->havoc_stack_pow2));
+ u32 use_stacking = 1 + rand_below(afl, stack_max);
afl->stage_cur_val = use_stacking;
#ifdef INTROSPECTION
- snprintf(afl->mutation, sizeof(afl->mutation), "%s HAVOC-%u",
- afl->queue_cur->fname, use_stacking);
+ snprintf(afl->mutation, sizeof(afl->mutation), "%s HAVOC-%u-%u",
+ afl->queue_cur->fname, afl->queue_cur->is_ascii, use_stacking);
#endif
for (i = 0; i < use_stacking; ++i) {
@@ -2170,8 +2159,8 @@
LIST_FOREACH(&afl->custom_mutator_list, struct custom_mutator, {
- if (el->stacked_custom &&
- rand_below(afl, 100) < el->stacked_custom_prob) {
+ if (unlikely(el->stacked_custom &&
+ rand_below(afl, 100) < el->stacked_custom_prob)) {
u8 *custom_havoc_buf = NULL;
size_t new_len = el->afl_custom_havoc_mutation(
@@ -2201,159 +2190,173 @@
}
- switch ((r = rand_below(afl, r_max))) {
+ retry_havoc_step: {
- case 0 ... 3: {
+ u32 r = rand_below(afl, rand_max), item;
+
+ switch (mutation_array[r]) {
+
+ case MUT_FLIPBIT: {
/* Flip a single bit somewhere. Spooky! */
+ u8 bit = rand_below(afl, 8);
+ u32 off = rand_below(afl, temp_len);
+ out_buf[off] ^= 1 << bit;
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " FLIP_BIT1");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " FLIP-BIT_%u", bit);
strcat(afl->mutation, afl->m_tmp);
#endif
- FLIP_BIT(out_buf, rand_below(afl, temp_len << 3));
break;
}
- case 4 ... 7: {
+ case MUT_INTERESTING8: {
/* Set byte to interesting value. */
+ item = rand_below(afl, sizeof(interesting_8));
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING8");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING8_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
- out_buf[rand_below(afl, temp_len)] =
- interesting_8[rand_below(afl, sizeof(interesting_8))];
+ out_buf[rand_below(afl, temp_len)] = interesting_8[item];
break;
}
- case 8 ... 9: {
+ case MUT_INTERESTING16: {
/* Set word to interesting value, little endian. */
- if (temp_len < 2) { break; }
+ if (unlikely(temp_len < 2)) { break; } // no retry
+ item = rand_below(afl, sizeof(interesting_16) >> 1);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING16");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING16_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
+
*(u16 *)(out_buf + rand_below(afl, temp_len - 1)) =
- interesting_16[rand_below(afl, sizeof(interesting_16) >> 1)];
+ interesting_16[item];
break;
}
- case 10 ... 11: {
+ case MUT_INTERESTING16BE: {
/* Set word to interesting value, big endian. */
- if (temp_len < 2) { break; }
+ if (unlikely(temp_len < 2)) { break; } // no retry
+ item = rand_below(afl, sizeof(interesting_16) >> 1);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING16BE");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING16BE_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
- *(u16 *)(out_buf + rand_below(afl, temp_len - 1)) = SWAP16(
- interesting_16[rand_below(afl, sizeof(interesting_16) >> 1)]);
+ *(u16 *)(out_buf + rand_below(afl, temp_len - 1)) =
+ SWAP16(interesting_16[item]);
break;
}
- case 12 ... 13: {
+ case MUT_INTERESTING32: {
/* Set dword to interesting value, little endian. */
- if (temp_len < 4) { break; }
+ if (unlikely(temp_len < 4)) { break; } // no retry
+ item = rand_below(afl, sizeof(interesting_32) >> 2);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING32");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING32_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
+
*(u32 *)(out_buf + rand_below(afl, temp_len - 3)) =
- interesting_32[rand_below(afl, sizeof(interesting_32) >> 2)];
+ interesting_32[item];
break;
}
- case 14 ... 15: {
+ case MUT_INTERESTING32BE: {
/* Set dword to interesting value, big endian. */
- if (temp_len < 4) { break; }
+ if (unlikely(temp_len < 4)) { break; } // no retry
+ item = rand_below(afl, sizeof(interesting_32) >> 2);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING32BE");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INTERESTING32BE_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
- *(u32 *)(out_buf + rand_below(afl, temp_len - 3)) = SWAP32(
- interesting_32[rand_below(afl, sizeof(interesting_32) >> 2)]);
+ *(u32 *)(out_buf + rand_below(afl, temp_len - 3)) =
+ SWAP32(interesting_32[item]);
break;
}
- case 16 ... 19: {
+ case MUT_ARITH8_: {
/* Randomly subtract from byte. */
+ item = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH8_");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH8-_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
- out_buf[rand_below(afl, temp_len)] -= 1 + rand_below(afl, ARITH_MAX);
+ out_buf[rand_below(afl, temp_len)] -= item;
break;
}
- case 20 ... 23: {
+ case MUT_ARITH8: {
/* Randomly add to byte. */
+ item = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH8+");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH8+_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
- out_buf[rand_below(afl, temp_len)] += 1 + rand_below(afl, ARITH_MAX);
+ out_buf[rand_below(afl, temp_len)] += item;
break;
}
- case 24 ... 25: {
+ case MUT_ARITH16_: {
/* Randomly subtract from word, little endian. */
- if (temp_len < 2) { break; }
+ if (unlikely(temp_len < 2)) { break; } // no retry
u32 pos = rand_below(afl, temp_len - 1);
+ item = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH16_-%u", pos);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH16-_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
- *(u16 *)(out_buf + pos) -= 1 + rand_below(afl, ARITH_MAX);
+ *(u16 *)(out_buf + pos) -= item;
break;
}
- case 26 ... 27: {
+ case MUT_ARITH16BE_: {
/* Randomly subtract from word, big endian. */
- if (temp_len < 2) { break; }
+ if (unlikely(temp_len < 2)) { break; } // no retry
u32 pos = rand_below(afl, temp_len - 1);
u16 num = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH16_BE-%u_%u", pos,
- num);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH16BE-_%u", num);
strcat(afl->mutation, afl->m_tmp);
#endif
*(u16 *)(out_buf + pos) =
@@ -2363,36 +2366,36 @@
}
- case 28 ... 29: {
+ case MUT_ARITH16: {
/* Randomly add to word, little endian. */
- if (temp_len < 2) { break; }
+ if (unlikely(temp_len < 2)) { break; } // no retry
u32 pos = rand_below(afl, temp_len - 1);
+ item = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH16+-%u", pos);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH16+_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
- *(u16 *)(out_buf + pos) += 1 + rand_below(afl, ARITH_MAX);
+ *(u16 *)(out_buf + pos) += item;
break;
}
- case 30 ... 31: {
+ case MUT_ARITH16BE: {
/* Randomly add to word, big endian. */
- if (temp_len < 2) { break; }
+ if (unlikely(temp_len < 2)) { break; } // no retry
u32 pos = rand_below(afl, temp_len - 1);
u16 num = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH16+BE-%u_%u", pos,
- num);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH16BE+__%u", num);
strcat(afl->mutation, afl->m_tmp);
#endif
*(u16 *)(out_buf + pos) =
@@ -2402,36 +2405,36 @@
}
- case 32 ... 33: {
+ case MUT_ARITH32_: {
/* Randomly subtract from dword, little endian. */
- if (temp_len < 4) { break; }
+ if (unlikely(temp_len < 4)) { break; } // no retry
u32 pos = rand_below(afl, temp_len - 3);
+ item = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH32_-%u", pos);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH32-_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
- *(u32 *)(out_buf + pos) -= 1 + rand_below(afl, ARITH_MAX);
+ *(u32 *)(out_buf + pos) -= item;
break;
}
- case 34 ... 35: {
+ case MUT_ARITH32BE_: {
/* Randomly subtract from dword, big endian. */
- if (temp_len < 4) { break; }
+ if (unlikely(temp_len < 4)) { break; } // no retry
u32 pos = rand_below(afl, temp_len - 3);
u32 num = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH32_BE-%u-%u", pos,
- num);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH32BE-_%u", num);
strcat(afl->mutation, afl->m_tmp);
#endif
*(u32 *)(out_buf + pos) =
@@ -2441,36 +2444,36 @@
}
- case 36 ... 37: {
+ case MUT_ARITH32: {
/* Randomly add to dword, little endian. */
- if (temp_len < 4) { break; }
+ if (unlikely(temp_len < 4)) { break; } // no retry
u32 pos = rand_below(afl, temp_len - 3);
+ item = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH32+-%u", pos);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH32+_%u", item);
strcat(afl->mutation, afl->m_tmp);
#endif
- *(u32 *)(out_buf + pos) += 1 + rand_below(afl, ARITH_MAX);
+ *(u32 *)(out_buf + pos) += item;
break;
}
- case 38 ... 39: {
+ case MUT_ARITH32BE: {
/* Randomly add to dword, big endian. */
- if (temp_len < 4) { break; }
+ if (unlikely(temp_len < 4)) { break; } // no retry
u32 pos = rand_below(afl, temp_len - 3);
u32 num = 1 + rand_below(afl, ARITH_MAX);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH32+BE-%u-%u", pos,
- num);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ARITH32BE+_%u", num);
strcat(afl->mutation, afl->m_tmp);
#endif
*(u32 *)(out_buf + pos) =
@@ -2480,24 +2483,27 @@
}
- case 40 ... 43: {
+ case MUT_RAND8: {
/* Just set a random byte to a random value. Because,
why not. We use XOR with 1-255 to eliminate the
possibility of a no-op. */
+ u32 pos = rand_below(afl, temp_len);
+ item = 1 + rand_below(afl, 255);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " RAND8");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " RAND8_%u",
+ out_buf[pos] ^ item);
strcat(afl->mutation, afl->m_tmp);
#endif
- out_buf[rand_below(afl, temp_len)] ^= 1 + rand_below(afl, 255);
+ out_buf[pos] ^= item;
break;
}
- case 44 ... 46: {
+ case MUT_CLONE_COPY: {
- if (temp_len + HAVOC_BLK_XL < MAX_FILE) {
+ if (likely(temp_len + HAVOC_BLK_XL < MAX_FILE)) {
/* Clone bytes. */
@@ -2506,8 +2512,8 @@
u32 clone_to = rand_below(afl, temp_len);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " CLONE-%s-%u-%u-%u",
- "clone", clone_from, clone_to, clone_len);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " CLONE-%s_%u_%u_%u",
+ "COPY", clone_from, clone_to, clone_len);
strcat(afl->mutation, afl->m_tmp);
#endif
u8 *new_buf =
@@ -2530,24 +2536,35 @@
afl_swap_bufs(AFL_BUF_PARAM(out), AFL_BUF_PARAM(out_scratch));
temp_len += clone_len;
+ } else if (unlikely(temp_len < 8)) {
+
+ break;
+
+ } else {
+
+ goto retry_havoc_step;
+
}
break;
}
- case 47: {
+ case MUT_CLONE_FIXED: {
- if (temp_len + HAVOC_BLK_XL < MAX_FILE) {
+ if (likely(temp_len + HAVOC_BLK_XL < MAX_FILE)) {
/* Insert a block of constant bytes (25%). */
u32 clone_len = choose_block_len(afl, HAVOC_BLK_XL);
u32 clone_to = rand_below(afl, temp_len);
+ u32 strat = rand_below(afl, 2);
+ u32 clone_from = clone_to ? clone_to - 1 : 0;
+ item = strat ? rand_below(afl, 256) : out_buf[clone_from];
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " CLONE-%s-%u-%u",
- "insert", clone_to, clone_len);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " CLONE-%s_%u_%u_%u",
+ "FIXED", strat, clone_to, clone_len);
strcat(afl->mutation, afl->m_tmp);
#endif
u8 *new_buf =
@@ -2560,10 +2577,7 @@
/* Inserted part */
- memset(new_buf + clone_to,
- rand_below(afl, 2) ? rand_below(afl, 256)
- : out_buf[rand_below(afl, temp_len)],
- clone_len);
+ memset(new_buf + clone_to, item, clone_len);
/* Tail */
memcpy(new_buf + clone_to + clone_len, out_buf + clone_to,
@@ -2573,66 +2587,77 @@
afl_swap_bufs(AFL_BUF_PARAM(out), AFL_BUF_PARAM(out_scratch));
temp_len += clone_len;
+ } else if (unlikely(temp_len < 8)) {
+
+ break;
+
+ } else {
+
+ goto retry_havoc_step;
+
}
break;
}
- case 48 ... 50: {
+ case MUT_OVERWRITE_COPY: {
/* Overwrite bytes with a randomly selected chunk bytes. */
- if (temp_len < 2) { break; }
+ if (unlikely(temp_len < 2)) { break; } // no retry
- u32 copy_len = choose_block_len(afl, temp_len - 1);
- u32 copy_from = rand_below(afl, temp_len - copy_len + 1);
- u32 copy_to = rand_below(afl, temp_len - copy_len + 1);
+ u32 copy_from, copy_to,
+ copy_len = choose_block_len(afl, temp_len - 1);
- if (likely(copy_from != copy_to)) {
+ do {
+
+ copy_from = rand_below(afl, temp_len - copy_len + 1);
+ copy_to = rand_below(afl, temp_len - copy_len + 1);
+
+ } while (unlikely(copy_from == copy_to));
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " OVERWRITE_COPY-%u-%u-%u",
- copy_from, copy_to, copy_len);
- strcat(afl->mutation, afl->m_tmp);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " OVERWRITE-COPY_%u_%u_%u",
+ copy_from, copy_to, copy_len);
+ strcat(afl->mutation, afl->m_tmp);
#endif
- memmove(out_buf + copy_to, out_buf + copy_from, copy_len);
-
- }
+ memmove(out_buf + copy_to, out_buf + copy_from, copy_len);
break;
}
- case 51: {
+ case MUT_OVERWRITE_FIXED: {
/* Overwrite bytes with fixed bytes. */
- if (temp_len < 2) { break; }
+ if (unlikely(temp_len < 2)) { break; } // no retry
u32 copy_len = choose_block_len(afl, temp_len - 1);
u32 copy_to = rand_below(afl, temp_len - copy_len + 1);
+ u32 strat = rand_below(afl, 2);
+ u32 copy_from = copy_to ? copy_to - 1 : 0;
+ item = strat ? rand_below(afl, 256) : out_buf[copy_from];
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " OVERWRITE_FIXED-%u-%u",
- copy_to, copy_len);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp),
+ " OVERWRITE-FIXED_%u_%u_%u-%u", strat, item, copy_to,
+ copy_len);
strcat(afl->mutation, afl->m_tmp);
#endif
- memset(out_buf + copy_to,
- rand_below(afl, 2) ? rand_below(afl, 256)
- : out_buf[rand_below(afl, temp_len)],
- copy_len);
+ memset(out_buf + copy_to, item, copy_len);
break;
}
- case 52: {
+ case MUT_BYTEADD: {
/* Increase byte by 1. */
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ADDBYTE_");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " BYTEADD_");
strcat(afl->mutation, afl->m_tmp);
#endif
out_buf[rand_below(afl, temp_len)]++;
@@ -2640,12 +2665,12 @@
}
- case 53: {
+ case MUT_BYTESUB: {
/* Decrease byte by 1. */
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " SUBBYTE_");
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " BYTESUB_");
strcat(afl->mutation, afl->m_tmp);
#endif
out_buf[rand_below(afl, temp_len)]--;
@@ -2653,9 +2678,9 @@
}
- case 54: {
+ case MUT_FLIP8: {
- /* Flip byte. */
+ /* Flip byte with a XOR 0xff. This is the same as NEG. */
#ifdef INTROSPECTION
snprintf(afl->m_tmp, sizeof(afl->m_tmp), " FLIP8_");
@@ -2666,9 +2691,9 @@
}
- case 55 ... 56: {
+ case MUT_SWITCH: {
- if (temp_len < 4) { break; }
+ if (unlikely(temp_len < 4)) { break; } // no retry
/* Switch bytes. */
@@ -2678,7 +2703,7 @@
switch_to = rand_below(afl, temp_len);
- } while (switch_from == switch_to);
+ } while (unlikely(switch_from == switch_to));
if (switch_from < switch_to) {
@@ -2695,7 +2720,7 @@
switch_len = choose_block_len(afl, MIN(switch_len, to_end));
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " SWITCH-%s-%u-%u-%u",
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " SWITCH-%s_%u_%u_%u",
"switch", switch_from, switch_to, switch_len);
strcat(afl->mutation, afl->m_tmp);
#endif
@@ -2718,12 +2743,11 @@
}
- // MAX_HAVOC_ENTRY = 64
- case 57 ... MAX_HAVOC_ENTRY: {
+ case MUT_DEL: {
/* Delete bytes. */
- if (temp_len < 2) { break; }
+ if (unlikely(temp_len < 2)) { break; } // no retry
/* Don't delete too much. */
@@ -2731,7 +2755,7 @@
u32 del_from = rand_below(afl, temp_len - del_len + 1);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " DEL-%u-%u", del_from,
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " DEL_%u_%u", del_from,
del_len);
strcat(afl->mutation, afl->m_tmp);
#endif
@@ -2744,135 +2768,401 @@
}
- default:
+ case MUT_SHUFFLE: {
- r -= (MAX_HAVOC_ENTRY + 1);
+ /* Shuffle bytes. */
- if (afl->extras_cnt) {
+ if (unlikely(temp_len < 4)) { break; } // no retry
- if (r < 2) {
+ u32 len = choose_block_len(afl, temp_len - 1);
+ u32 off = rand_below(afl, temp_len - len + 1);
- /* Use the dictionary. */
-
- u32 use_extra = rand_below(afl, afl->extras_cnt);
- u32 extra_len = afl->extras[use_extra].len;
-
- if (extra_len > temp_len) { break; }
-
- u32 insert_at = rand_below(afl, temp_len - extra_len + 1);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " EXTRA_OVERWRITE-%u-%u",
- insert_at, extra_len);
- strcat(afl->mutation, afl->m_tmp);
-#endif
- memcpy(out_buf + insert_at, afl->extras[use_extra].data,
- extra_len);
-
- break;
-
- } else if (r < 4) {
-
- u32 use_extra = rand_below(afl, afl->extras_cnt);
- u32 extra_len = afl->extras[use_extra].len;
- if (temp_len + extra_len >= MAX_FILE) { break; }
-
- u8 *ptr = afl->extras[use_extra].data;
- u32 insert_at = rand_below(afl, temp_len + 1);
-#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp), " EXTRA_INSERT-%u-%u",
- insert_at, extra_len);
- strcat(afl->mutation, afl->m_tmp);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " SHUFFLE_%u", len);
+ strcat(afl->mutation, afl->m_tmp);
#endif
- out_buf = afl_realloc(AFL_BUF_PARAM(out), temp_len + extra_len);
- if (unlikely(!out_buf)) { PFATAL("alloc"); }
+ for (u32 i = len - 1; i > 0; i--) {
- /* Tail */
- memmove(out_buf + insert_at + extra_len, out_buf + insert_at,
- temp_len - insert_at);
+ u32 j;
+ do {
- /* Inserted part */
- memcpy(out_buf + insert_at, ptr, extra_len);
- temp_len += extra_len;
+ j = rand_below(afl, i + 1);
- break;
+ } while (unlikely(i == j));
- } else {
+ unsigned char temp = out_buf[off + i];
+ out_buf[off + i] = out_buf[off + j];
+ out_buf[off + j] = temp;
- r -= 4;
+ }
+
+ break;
+
+ }
+
+ case MUT_DELONE: {
+
+ /* Delete bytes. */
+
+ if (unlikely(temp_len < 2)) { break; } // no retry
+
+ /* Don't delete too much. */
+
+ u32 del_len = 1;
+ u32 del_from = rand_below(afl, temp_len - del_len + 1);
+
+#ifdef INTROSPECTION
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " DELONE_%u", del_from);
+ strcat(afl->mutation, afl->m_tmp);
+#endif
+ memmove(out_buf + del_from, out_buf + del_from + del_len,
+ temp_len - del_from - del_len);
+
+ temp_len -= del_len;
+
+ break;
+
+ }
+
+ case MUT_INSERTONE: {
+
+ if (unlikely(temp_len < 2)) { break; } // no retry
+
+ u32 clone_len = 1;
+ u32 clone_to = rand_below(afl, temp_len);
+ u32 strat = rand_below(afl, 2);
+ u32 clone_from = clone_to ? clone_to - 1 : 0;
+ item = strat ? rand_below(afl, 256) : out_buf[clone_from];
+
+#ifdef INTROSPECTION
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INSERTONE_%u_%u", strat,
+ clone_to);
+ strcat(afl->mutation, afl->m_tmp);
+#endif
+ u8 *new_buf =
+ afl_realloc(AFL_BUF_PARAM(out_scratch), temp_len + clone_len);
+ if (unlikely(!new_buf)) { PFATAL("alloc"); }
+
+ /* Head */
+
+ memcpy(new_buf, out_buf, clone_to);
+
+ /* Inserted part */
+
+ memset(new_buf + clone_to, item, clone_len);
+
+ /* Tail */
+ memcpy(new_buf + clone_to + clone_len, out_buf + clone_to,
+ temp_len - clone_to);
+
+ out_buf = new_buf;
+ afl_swap_bufs(AFL_BUF_PARAM(out), AFL_BUF_PARAM(out_scratch));
+ temp_len += clone_len;
+
+ break;
+
+ }
+
+ case MUT_ASCIINUM: {
+
+ if (unlikely(temp_len < 4)) { break; } // no retry
+
+ u32 off = rand_below(afl, temp_len), off2 = off, cnt = 0;
+
+ while (off2 + cnt < temp_len && !isdigit(out_buf[off2 + cnt])) {
+
+ ++cnt;
+
+ }
+
+ // none found, wrap
+ if (off2 + cnt == temp_len) {
+
+ off2 = 0;
+ cnt = 0;
+
+ while (cnt < off && !isdigit(out_buf[off2 + cnt])) {
+
+ ++cnt;
+
+ }
+
+ if (cnt == off) {
+
+ if (temp_len < 8) {
+
+ break;
+
+ } else {
+
+ goto retry_havoc_step;
+
+ }
}
}
- if (afl->a_extras_cnt) {
+ off = off2 + cnt;
+ off2 = off + 1;
- u32 r_cmp = 2;
+ while (off2 < temp_len && isdigit(out_buf[off2])) {
- if (unlikely(afl->cmplog_binary && afl->queue_cur->is_ascii)) {
+ ++off2;
- r_cmp = MUTATE_ASCII_DICT >> 1;
+ }
- }
+ s64 val = out_buf[off] - '0';
+ for (u32 i = off + 1; i < off2; ++i) {
- if (r < r_cmp) {
+ val = (val * 10) + out_buf[i] - '0';
- /* Use the dictionary. */
+ }
- u32 use_extra = rand_below(afl, afl->a_extras_cnt);
- u32 extra_len = afl->a_extras[use_extra].len;
+ if (off && out_buf[off - 1] == '-') { val = -val; }
- if (extra_len > temp_len) { break; }
+ u32 strat = rand_below(afl, 8);
+ switch (strat) {
- u32 insert_at = rand_below(afl, temp_len - extra_len + 1);
-#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp),
- " AUTO_EXTRA_OVERWRITE-%u-%u", insert_at, extra_len);
- strcat(afl->mutation, afl->m_tmp);
-#endif
- memcpy(out_buf + insert_at, afl->a_extras[use_extra].data,
- extra_len);
+ case 0:
+ val++;
+ break;
+ case 1:
+ val--;
+ break;
+ case 2:
+ val *= 2;
+ break;
+ case 3:
+ val /= 2;
+ break;
+ case 4:
+ if (likely(val && (u64)val < 0x19999999)) {
+
+ val = (u64)rand_next(afl) % (u64)((u64)val * 10);
+
+ } else {
+
+ val = rand_below(afl, 256);
+
+ }
break;
+ case 5:
+ val += rand_below(afl, 256);
+ break;
+ case 6:
+ val -= rand_below(afl, 256);
+ break;
+ case 7:
+ val = ~(val);
+ break;
- } else if (r < (r_cmp << 1)) {
+ }
- u32 use_extra = rand_below(afl, afl->a_extras_cnt);
- u32 extra_len = afl->a_extras[use_extra].len;
- if (temp_len + extra_len >= MAX_FILE) { break; }
-
- u8 *ptr = afl->a_extras[use_extra].data;
- u32 insert_at = rand_below(afl, temp_len + 1);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp),
- " AUTO_EXTRA_INSERT-%u-%u", insert_at, extra_len);
- strcat(afl->mutation, afl->m_tmp);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " ASCIINUM_%u_%u_%u",
+ afl->queue_cur->is_ascii, strat, off);
+ strcat(afl->mutation, afl->m_tmp);
#endif
+ // fprintf(stderr, "val: %u-%u = %ld\n", off, off2, val);
- out_buf = afl_realloc(AFL_BUF_PARAM(out), temp_len + extra_len);
- if (unlikely(!out_buf)) { PFATAL("alloc"); }
+ char buf[20];
+ snprintf(buf, sizeof(buf), "%" PRId64, val);
- /* Tail */
- memmove(out_buf + insert_at + extra_len, out_buf + insert_at,
- temp_len - insert_at);
+ // fprintf(stderr, "BEFORE: %s\n", out_buf);
- /* Inserted part */
- memcpy(out_buf + insert_at, ptr, extra_len);
- temp_len += extra_len;
+ u32 old_len = off2 - off;
+ u32 new_len = strlen(buf);
+
+ if (old_len == new_len) {
+
+ memcpy(out_buf + off, buf, new_len);
+
+ } else {
+
+ u8 *new_buf = afl_realloc(AFL_BUF_PARAM(out_scratch),
+ temp_len + new_len - old_len);
+ if (unlikely(!new_buf)) { PFATAL("alloc"); }
+
+ /* Head */
+
+ memcpy(new_buf, out_buf, off);
+
+ /* Inserted part */
+
+ memcpy(new_buf + off, buf, new_len);
+
+ /* Tail */
+ memcpy(new_buf + off + new_len, out_buf + off2, temp_len - off2);
+
+ out_buf = new_buf;
+ afl_swap_bufs(AFL_BUF_PARAM(out), AFL_BUF_PARAM(out_scratch));
+ temp_len += (new_len - old_len);
+
+ }
+
+ // fprintf(stderr, "AFTER : %s\n", out_buf);
+ break;
+
+ }
+
+ case MUT_INSERTASCIINUM: {
+
+ u32 len = 1 + rand_below(afl, 8);
+ u32 pos = rand_below(afl, temp_len);
+ /* Insert ascii number. */
+ if (unlikely(temp_len < pos + len)) {
+
+ if (unlikely(temp_len < 8)) {
break;
} else {
- r -= (r_cmp << 1);
+ goto retry_havoc_step;
}
}
- /* Splicing otherwise if we are still here.
- Overwrite bytes with a randomly selected chunk from another
- testcase or insert that chunk. */
+#ifdef INTROSPECTION
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " INSERTASCIINUM_");
+ strcat(afl->mutation, afl->m_tmp);
+#endif
+ u64 val = rand_next(afl);
+ char buf[20];
+ snprintf(buf, sizeof(buf), "%llu", val);
+ memcpy(out_buf + pos, buf, len);
+
+ break;
+
+ }
+
+ case MUT_EXTRA_OVERWRITE: {
+
+ if (unlikely(!afl->extras_cnt)) { goto retry_havoc_step; }
+
+ /* Use the dictionary. */
+
+ u32 use_extra = rand_below(afl, afl->extras_cnt);
+ u32 extra_len = afl->extras[use_extra].len;
+
+ if (unlikely(extra_len > temp_len)) { goto retry_havoc_step; }
+
+ u32 insert_at = rand_below(afl, temp_len - extra_len + 1);
+#ifdef INTROSPECTION
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " EXTRA-OVERWRITE_%u_%u",
+ insert_at, extra_len);
+ strcat(afl->mutation, afl->m_tmp);
+#endif
+ memcpy(out_buf + insert_at, afl->extras[use_extra].data, extra_len);
+
+ break;
+
+ }
+
+ case MUT_EXTRA_INSERT: {
+
+ if (unlikely(!afl->extras_cnt)) { goto retry_havoc_step; }
+
+ u32 use_extra = rand_below(afl, afl->extras_cnt);
+ u32 extra_len = afl->extras[use_extra].len;
+ if (unlikely(temp_len + extra_len >= MAX_FILE)) {
+
+ goto retry_havoc_step;
+
+ }
+
+ u8 *ptr = afl->extras[use_extra].data;
+ u32 insert_at = rand_below(afl, temp_len + 1);
+#ifdef INTROSPECTION
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " EXTRA-INSERT_%u_%u",
+ insert_at, extra_len);
+ strcat(afl->mutation, afl->m_tmp);
+#endif
+
+ out_buf = afl_realloc(AFL_BUF_PARAM(out), temp_len + extra_len);
+ if (unlikely(!out_buf)) { PFATAL("alloc"); }
+
+ /* Tail */
+ memmove(out_buf + insert_at + extra_len, out_buf + insert_at,
+ temp_len - insert_at);
+
+ /* Inserted part */
+ memcpy(out_buf + insert_at, ptr, extra_len);
+ temp_len += extra_len;
+
+ break;
+
+ }
+
+ case MUT_AUTO_EXTRA_OVERWRITE: {
+
+ if (unlikely(!afl->a_extras_cnt)) { goto retry_havoc_step; }
+
+ /* Use the dictionary. */
+
+ u32 use_extra = rand_below(afl, afl->a_extras_cnt);
+ u32 extra_len = afl->a_extras[use_extra].len;
+
+ if (unlikely(extra_len > temp_len)) { goto retry_havoc_step; }
+
+ u32 insert_at = rand_below(afl, temp_len - extra_len + 1);
+#ifdef INTROSPECTION
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp),
+ " AUTO-EXTRA-OVERWRITE_%u_%u", insert_at, extra_len);
+ strcat(afl->mutation, afl->m_tmp);
+#endif
+ memcpy(out_buf + insert_at, afl->a_extras[use_extra].data, extra_len);
+
+ break;
+
+ }
+
+ case MUT_AUTO_EXTRA_INSERT: {
+
+ if (unlikely(!afl->a_extras_cnt)) { goto retry_havoc_step; }
+
+ u32 use_extra = rand_below(afl, afl->a_extras_cnt);
+ u32 extra_len = afl->a_extras[use_extra].len;
+ if (unlikely(temp_len + extra_len >= MAX_FILE)) {
+
+ goto retry_havoc_step;
+
+ }
+
+ u8 *ptr = afl->a_extras[use_extra].data;
+ u32 insert_at = rand_below(afl, temp_len + 1);
+#ifdef INTROSPECTION
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " AUTO-EXTRA-INSERT_%u_%u",
+ insert_at, extra_len);
+ strcat(afl->mutation, afl->m_tmp);
+#endif
+
+ out_buf = afl_realloc(AFL_BUF_PARAM(out), temp_len + extra_len);
+ if (unlikely(!out_buf)) { PFATAL("alloc"); }
+
+ /* Tail */
+ memmove(out_buf + insert_at + extra_len, out_buf + insert_at,
+ temp_len - insert_at);
+
+ /* Inserted part */
+ memcpy(out_buf + insert_at, ptr, extra_len);
+ temp_len += extra_len;
+
+ break;
+
+ }
+
+ case MUT_SPLICE_OVERWRITE: {
+
+ if (unlikely(afl->ready_for_splicing_count <= 1)) {
+
+ goto retry_havoc_step;
+
+ }
/* Pick a random queue entry and seek to it. */
@@ -2881,79 +3171,110 @@
tid = rand_below(afl, afl->queued_items);
- } while (tid == afl->current_entry || afl->queue_buf[tid]->len < 4);
+ } while (unlikely(tid == afl->current_entry ||
+
+ afl->queue_buf[tid]->len < 4));
/* Get the testcase for splicing. */
struct queue_entry *target = afl->queue_buf[tid];
u32 new_len = target->len;
u8 *new_buf = queue_testcase_get(afl, target);
- if ((temp_len >= 2 && r % 2) || temp_len + HAVOC_BLK_XL >= MAX_FILE) {
+ /* overwrite mode */
- /* overwrite mode */
+ u32 copy_from, copy_to, copy_len;
- u32 copy_from, copy_to, copy_len;
+ copy_len = choose_block_len(afl, new_len - 1);
+ if (copy_len > temp_len) copy_len = temp_len;
- copy_len = choose_block_len(afl, new_len - 1);
- if (copy_len > temp_len) copy_len = temp_len;
-
- copy_from = rand_below(afl, new_len - copy_len + 1);
- copy_to = rand_below(afl, temp_len - copy_len + 1);
+ copy_from = rand_below(afl, new_len - copy_len + 1);
+ copy_to = rand_below(afl, temp_len - copy_len + 1);
#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp),
- " SPLICE_OVERWRITE-%u-%u-%u-%s", copy_from, copy_to,
- copy_len, target->fname);
- strcat(afl->mutation, afl->m_tmp);
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp),
+ " SPLICE-OVERWRITE_%u_%u_%u_%s", copy_from, copy_to,
+ copy_len, target->fname);
+ strcat(afl->mutation, afl->m_tmp);
#endif
- memmove(out_buf + copy_to, new_buf + copy_from, copy_len);
-
- } else {
-
- /* insert mode */
-
- u32 clone_from, clone_to, clone_len;
-
- clone_len = choose_block_len(afl, new_len);
- clone_from = rand_below(afl, new_len - clone_len + 1);
- clone_to = rand_below(afl, temp_len + 1);
-
- u8 *temp_buf = afl_realloc(AFL_BUF_PARAM(out_scratch),
- temp_len + clone_len + 1);
- if (unlikely(!temp_buf)) { PFATAL("alloc"); }
-
-#ifdef INTROSPECTION
- snprintf(afl->m_tmp, sizeof(afl->m_tmp),
- " SPLICE_INSERT-%u-%u-%u-%s", clone_from, clone_to,
- clone_len, target->fname);
- strcat(afl->mutation, afl->m_tmp);
-#endif
- /* Head */
-
- memcpy(temp_buf, out_buf, clone_to);
-
- /* Inserted part */
-
- memcpy(temp_buf + clone_to, new_buf + clone_from, clone_len);
-
- /* Tail */
- memcpy(temp_buf + clone_to + clone_len, out_buf + clone_to,
- temp_len - clone_to);
-
- out_buf = temp_buf;
- afl_swap_bufs(AFL_BUF_PARAM(out), AFL_BUF_PARAM(out_scratch));
- temp_len += clone_len;
-
- }
+ memmove(out_buf + copy_to, new_buf + copy_from, copy_len);
break;
- // end of default
+ }
+
+ case MUT_SPLICE_INSERT: {
+
+ if (unlikely(afl->ready_for_splicing_count <= 1)) {
+
+ goto retry_havoc_step;
+
+ }
+
+ if (unlikely(temp_len + HAVOC_BLK_XL >= MAX_FILE)) {
+
+ goto retry_havoc_step;
+
+ }
+
+ /* Pick a random queue entry and seek to it. */
+
+ u32 tid;
+ do {
+
+ tid = rand_below(afl, afl->queued_items);
+
+ } while (unlikely(tid == afl->current_entry ||
+
+ afl->queue_buf[tid]->len < 4));
+
+ /* Get the testcase for splicing. */
+ struct queue_entry *target = afl->queue_buf[tid];
+ u32 new_len = target->len;
+ u8 *new_buf = queue_testcase_get(afl, target);
+
+ /* insert mode */
+
+ u32 clone_from, clone_to, clone_len;
+
+ clone_len = choose_block_len(afl, new_len);
+ clone_from = rand_below(afl, new_len - clone_len + 1);
+ clone_to = rand_below(afl, temp_len + 1);
+
+ u8 *temp_buf =
+ afl_realloc(AFL_BUF_PARAM(out_scratch), temp_len + clone_len + 1);
+ if (unlikely(!temp_buf)) { PFATAL("alloc"); }
+
+#ifdef INTROSPECTION
+ snprintf(afl->m_tmp, sizeof(afl->m_tmp), " SPLICE-INSERT_%u_%u_%u_%s",
+ clone_from, clone_to, clone_len, target->fname);
+ strcat(afl->mutation, afl->m_tmp);
+#endif
+ /* Head */
+
+ memcpy(temp_buf, out_buf, clone_to);
+
+ /* Inserted part */
+
+ memcpy(temp_buf + clone_to, new_buf + clone_from, clone_len);
+
+ /* Tail */
+ memcpy(temp_buf + clone_to + clone_len, out_buf + clone_to,
+ temp_len - clone_to);
+
+ out_buf = temp_buf;
+ afl_swap_bufs(AFL_BUF_PARAM(out), AFL_BUF_PARAM(out_scratch));
+ temp_len += clone_len;
+
+ break;
+
+ }
}
}
+ }
+
if (common_fuzz_stuff(afl, out_buf, temp_len)) { goto abandon_entry; }
/* out_buf might have been mangled a bit, so let's restore it to its
@@ -3039,7 +3360,9 @@
tid = rand_below(afl, afl->queued_items);
- } while (tid == afl->current_entry || afl->queue_buf[tid]->len < 4);
+ } while (
+
+ unlikely(tid == afl->current_entry || afl->queue_buf[tid]->len < 4));
/* Get the testcase */
afl->splicing_with = tid;
@@ -3079,6 +3402,25 @@
ret_val = 0;
+#ifdef INTROSPECTION
+
+ afl->havoc_prof->queued_det_stage =
+ before_havoc_findings - before_det_findings;
+ afl->havoc_prof->queued_havoc_stage =
+ afl->queued_items - before_havoc_findings;
+ afl->havoc_prof->total_queued_det += afl->havoc_prof->queued_det_stage;
+ afl->havoc_prof->edge_det_stage = before_havoc_edges - before_det_edges;
+ afl->havoc_prof->edge_havoc_stage =
+ count_non_255_bytes(afl, afl->virgin_bits) - before_havoc_edges;
+ afl->havoc_prof->total_det_edge += afl->havoc_prof->edge_det_stage;
+ afl->havoc_prof->det_stage_time = before_havoc_time - before_det_time;
+ afl->havoc_prof->havoc_stage_time = get_cur_time() - before_havoc_time;
+ afl->havoc_prof->total_det_time += afl->havoc_prof->det_stage_time;
+
+ plot_profile_data(afl, afl->queue_cur);
+
+#endif
+
/* we are through with this queue entry - for this iteration */
abandon_entry:
@@ -3093,7 +3435,12 @@
--afl->pending_not_fuzzed;
afl->queue_cur->was_fuzzed = 1;
afl->reinit_table = 1;
- if (afl->queue_cur->favored) { --afl->pending_favored; }
+ if (afl->queue_cur->favored) {
+
+ --afl->pending_favored;
+ afl->smallest_favored = -1;
+
+ }
}
@@ -3349,13 +3696,13 @@
* SIMPLE BITFLIP (+dictionary construction) *
*********************************************/
-#define FLIP_BIT(_ar, _b) \
- do { \
- \
- u8 *_arf = (u8 *)(_ar); \
- u32 _bf = (_b); \
- _arf[(_bf) >> 3] ^= (128 >> ((_bf)&7)); \
- \
+#define FLIP_BIT(_ar, _b) \
+ do { \
+ \
+ u8 *_arf = (u8 *)(_ar); \
+ u32 _bf = (_b); \
+ _arf[(_bf) >> 3] ^= (128 >> ((_bf) & 7)); \
+ \
} while (0)
/* Single walking bit. */
@@ -5556,7 +5903,13 @@
--afl->pending_not_fuzzed;
afl->queue_cur->was_fuzzed = 1;
- if (afl->queue_cur->favored) { --afl->pending_favored; }
+ afl->reinit_table = 1
+ if (afl->queue_cur->favored) {
+
+ --afl->pending_favored;
+ afl->smallest_favored = -1;
+
+ }
}
diff --git a/src/afl-fuzz-python.c b/src/afl-fuzz-python.c
index 7dad077..16a398f 100644
--- a/src/afl-fuzz-python.c
+++ b/src/afl-fuzz-python.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -249,6 +249,8 @@
PyObject_GetAttrString(py_module, "queue_get");
py_functions[PY_FUNC_FUZZ_SEND] =
PyObject_GetAttrString(py_module, "fuzz_send");
+ py_functions[PY_FUNC_POST_RUN] =
+ PyObject_GetAttrString(py_module, "post_run");
py_functions[PY_FUNC_SPLICE_OPTOUT] =
PyObject_GetAttrString(py_module, "splice_optout");
if (py_functions[PY_FUNC_SPLICE_OPTOUT]) { afl->custom_splice_optout = 1; }
@@ -468,6 +470,12 @@
}
+ if (py_functions[PY_FUNC_POST_RUN]) {
+
+ mutator->afl_custom_post_run = post_run_py;
+
+ }
+
if (py_functions[PY_FUNC_SPLICE_OPTOUT]) {
mutator->afl_custom_splice_optout = splice_optout_py;
@@ -925,6 +933,28 @@
}
+void post_run_py(void *py_mutator) {
+
+ PyObject *py_args, *py_value;
+
+ py_args = PyTuple_New(0);
+ py_value = PyObject_CallObject(
+ ((py_mutator_t *)py_mutator)->py_functions[PY_FUNC_POST_RUN], py_args);
+ Py_DECREF(py_args);
+
+ if (py_value != NULL) {
+
+ Py_DECREF(py_value);
+
+ } else {
+
+ PyErr_Print();
+ FATAL("Call failed");
+
+ }
+
+}
+
u8 queue_new_entry_py(void *py_mutator, const u8 *filename_new_queue,
const u8 *filename_orig_queue) {
diff --git a/src/afl-fuzz-queue.c b/src/afl-fuzz-queue.c
index b10bf74..1ea5041 100644
--- a/src/afl-fuzz-queue.c
+++ b/src/afl-fuzz-queue.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
@@ -80,6 +80,7 @@
if (unlikely(weight < 0.1)) { weight = 0.1; }
if (unlikely(q->favored)) { weight *= 5; }
if (unlikely(!q->was_fuzzed)) { weight *= 2; }
+ if (unlikely(q->fs_redundant)) { weight *= 0.8; }
return weight;
@@ -612,7 +613,7 @@
}
- if (likely(q->len > 4)) afl->ready_for_splicing_count++;
+ if (likely(q->len > 4)) { ++afl->ready_for_splicing_count; }
++afl->queued_items;
++afl->active_items;
@@ -663,6 +664,8 @@
}
+ q->skipdet_e = (struct skipdet_entry *)ck_alloc(sizeof(struct skipdet_entry));
+
}
/* Destroy the entire queue. */
@@ -678,6 +681,15 @@
q = afl->queue_buf[i];
ck_free(q->fname);
ck_free(q->trace_mini);
+ if (q->skipdet_e) {
+
+ if (q->skipdet_e->done_inf_map) ck_free(q->skipdet_e->done_inf_map);
+ if (q->skipdet_e->skip_eff_map) ck_free(q->skipdet_e->skip_eff_map);
+
+ ck_free(q->skipdet_e);
+
+ }
+
ck_free(q);
}
@@ -701,13 +713,20 @@
u64 fav_factor;
u64 fuzz_p2;
- if (unlikely(afl->schedule >= FAST && afl->schedule < RARE))
+ if (likely(afl->schedule >= FAST && afl->schedule < RARE)) {
+
fuzz_p2 = 0; // Skip the fuzz_p2 comparison
- else if (unlikely(afl->schedule == RARE))
+
+ } else if (unlikely(afl->schedule == RARE)) {
+
fuzz_p2 = next_pow2(afl->n_fuzz[q->n_fuzz_entry]);
- else
+
+ } else {
+
fuzz_p2 = q->fuzz_level;
+ }
+
if (unlikely(afl->schedule >= RARE) || unlikely(afl->fixed_seed)) {
fav_factor = q->len << 2;
@@ -729,12 +748,22 @@
/* Faster-executing or smaller test cases are favored. */
u64 top_rated_fav_factor;
u64 top_rated_fuzz_p2;
- if (unlikely(afl->schedule >= FAST && afl->schedule <= RARE))
+
+ if (likely(afl->schedule >= FAST && afl->schedule < RARE)) {
+
+ top_rated_fuzz_p2 = 0; // Skip the fuzz_p2 comparison
+
+ } else if (unlikely(afl->schedule == RARE)) {
+
top_rated_fuzz_p2 =
next_pow2(afl->n_fuzz[afl->top_rated[i]->n_fuzz_entry]);
- else
+
+ } else {
+
top_rated_fuzz_p2 = afl->top_rated[i]->fuzz_level;
+ }
+
if (unlikely(afl->schedule >= RARE) || unlikely(afl->fixed_seed)) {
top_rated_fav_factor = afl->top_rated[i]->len << 2;
@@ -746,30 +775,9 @@
}
- if (fuzz_p2 > top_rated_fuzz_p2) {
+ if (likely(fuzz_p2 > top_rated_fuzz_p2)) { continue; }
- continue;
-
- } else if (fuzz_p2 == top_rated_fuzz_p2) {
-
- if (fav_factor > top_rated_fav_factor) { continue; }
-
- }
-
- if (unlikely(afl->schedule >= RARE) || unlikely(afl->fixed_seed)) {
-
- if (fav_factor > afl->top_rated[i]->len << 2) { continue; }
-
- } else {
-
- if (fav_factor >
- afl->top_rated[i]->exec_us * afl->top_rated[i]->len) {
-
- continue;
-
- }
-
- }
+ if (likely(fav_factor > top_rated_fav_factor)) { continue; }
/* Looks like we're going to win. Decrease ref count for the
previous winner, discard its afl->fsrv.trace_bits[] if necessary. */
@@ -834,6 +842,8 @@
/* Let's see if anything in the bitmap isn't captured in temp_v.
If yes, and if it has a afl->top_rated[] contender, let's use it. */
+ afl->smallest_favored = -1;
+
for (i = 0; i < afl->fsrv.map_size; ++i) {
if (afl->top_rated[i] && (temp_v[i >> 3] & (1 << (i & 7)))) {
@@ -857,7 +867,16 @@
afl->top_rated[i]->favored = 1;
++afl->queued_favored;
- if (!afl->top_rated[i]->was_fuzzed) { ++afl->pending_favored; }
+ if (!afl->top_rated[i]->was_fuzzed) {
+
+ ++afl->pending_favored;
+ if (unlikely(afl->smallest_favored < 0)) {
+
+ afl->smallest_favored = (s64)afl->top_rated[i]->id;
+
+ }
+
+ }
}
@@ -875,6 +894,8 @@
}
+ afl->reinit_table = 1;
+
}
/* Calculate case desirability score to adjust the length of havoc fuzzing.
diff --git a/src/afl-fuzz-redqueen.c b/src/afl-fuzz-redqueen.c
index 41644cb..eead7a8 100644
--- a/src/afl-fuzz-redqueen.c
+++ b/src/afl-fuzz-redqueen.c
@@ -11,7 +11,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -40,7 +40,7 @@
IS_FP = 8, // is a floating point, not an integer
/* --- below are internal settings, not from target cmplog */
IS_FP_MOD = 16, // arithemtic changed floating point
- IS_INT_MOD = 32, // arithmetic changed interger
+ IS_INT_MOD = 32, // arithmetic changed integer
IS_TRANSFORM = 64 // transformed integer
};
@@ -129,7 +129,6 @@
}
#ifdef _DEBUG
-// static int logging = 0;
static void dump(char *txt, u8 *buf, u32 len) {
u32 i;
@@ -140,6 +139,7 @@
}
+/*
static void dump_file(char *path, char *name, u32 counter, u8 *buf, u32 len) {
char fn[4096];
@@ -155,6 +155,8 @@
}
+*/
+
#endif
static u8 get_exec_checksum(afl_state_t *afl, u8 *buf, u32 len, u64 *cksum) {
@@ -571,7 +573,6 @@
}
-// #ifdef CMPLOG_SOLVE_TRANSFORM
static int strntoll(const char *str, size_t sz, char **end, int base,
long long *out) {
@@ -656,7 +657,6 @@
}
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
// tests 4 bytes at location
static int is_base64(const char *str) {
@@ -732,12 +732,14 @@
}
-static void to_base64(u8 *src, u8 *dst, u32 dst_len) {
+static u32 to_base64(u8 *src, u8 *dst, u32 dst_len) {
u32 i, j, v;
- u32 len = (dst_len >> 2) * 3;
+ // u32 len = (dst_len >> 2) * 3;
+ u32 len = (dst_len / 3) * 4;
+ if (dst_len % 3) len += 4;
- for (i = 0, j = 0; i < len; i += 3, j += 4) {
+ for (i = 0, j = 0; j < len; i += 3, j += 4) {
v = src[i];
v = i + 1 < len ? v << 8 | src[i + 1] : v << 8;
@@ -745,7 +747,8 @@
dst[j] = base64_encode_table[(v >> 18) & 0x3F];
dst[j + 1] = base64_encode_table[(v >> 12) & 0x3F];
- if (i + 1 < len) {
+
+ if (i + 1 < dst_len) {
dst[j + 2] = base64_encode_table[(v >> 6) & 0x3F];
@@ -755,7 +758,7 @@
}
- if (i + 2 < len) {
+ if (i + 2 < dst_len) {
dst[j + 3] = base64_encode_table[v & 0x3F];
@@ -767,12 +770,18 @@
}
+ dst[len] = 0;
+ return len;
+
}
+#ifdef WORD_SIZE_64
+static u8 cmp_extend_encodingN(afl_state_t *afl, struct cmp_header *h,
+ u128 pattern, u128 repl, u128 o_pattern,
+ u128 changed_val, u8 attr, u32 idx,
+ u32 taint_len, u8 *orig_buf, u8 *buf, u8 *cbuf,
+ u32 len, u8 do_reverse, u8 lvl, u8 *status);
#endif
-
-// #endif
-
static u8 cmp_extend_encoding(afl_state_t *afl, struct cmp_header *h,
u64 pattern, u64 repl, u64 o_pattern,
u64 changed_val, u8 attr, u32 idx, u32 taint_len,
@@ -797,42 +806,77 @@
}
- // fprintf(stderr,
- // "Encode: %llx->%llx into %llx(<-%llx) at idx=%u "
- // "taint_len=%u shape=%u attr=%u\n",
- // o_pattern, pattern, repl, changed_val, idx, taint_len,
- // hshape, attr);
+ /*
+ fprintf(stderr,
+ "Encode: %llx->%llx into %llx(<-%llx) at idx=%u "
+ "taint_len=%u shape=%u attr=%u\n",
+ o_pattern, pattern, repl, changed_val, idx, taint_len,
+ hshape, attr);
+ */
- // #ifdef CMPLOG_SOLVE_TRANSFORM
+ u8 bytes;
+
+ switch (hshape) {
+
+ case 0:
+ case 1:
+ bytes = 1;
+ break;
+ case 2:
+ bytes = 2;
+ break;
+ case 3:
+ case 4:
+ bytes = 4;
+ break;
+ default:
+ bytes = 8;
+
+ }
+
+ // necessary for preventing heap access overflow
+ bytes = MIN(bytes, len - idx);
+
// reverse atoi()/strnu?toll() is expensive, so we only to it in lvl 3
if (afl->cmplog_enable_transform && (lvl & LVL3)) {
u8 *endptr;
u8 use_num = 0, use_unum = 0;
- unsigned long long unum;
- long long num;
+ unsigned long long unum = 0;
+ long long num = 0;
- if (afl->queue_cur->is_ascii) {
+ // if (afl->queue_cur->is_ascii) {
- endptr = buf_8;
- if (strntoll(buf_8, len - idx, (char **)&endptr, 0, &num)) {
+ // we first check if our input are ascii numbers that are transformed to
+ // an integer and used for comparison:
- if (!strntoull(buf_8, len - idx, (char **)&endptr, 0, &unum))
- use_unum = 1;
+ endptr = buf_8;
+ if (strntoll(buf_8, len - idx, (char **)&endptr, 0, &num)) {
- } else
+ if (!strntoull(buf_8, len - idx, (char **)&endptr, 0, &unum)) {
- use_num = 1;
+ use_unum = 1;
+
+ }
+
+ } else {
+
+ use_num = 1;
}
+ //}
+
#ifdef _DEBUG
if (idx == 0)
- fprintf(stderr, "ASCII is=%u use_num=%u use_unum=%u idx=%u %llx==%llx\n",
- afl->queue_cur->is_ascii, use_num, use_unum, idx, num, pattern);
+ fprintf(stderr,
+ "ASCII is=%u use_num=%u>%lld use_unum=%u>%llu idx=%u "
+ "pattern=0x%llx\n",
+ afl->queue_cur->is_ascii, use_num, num, use_unum, unum, idx,
+ pattern);
#endif
- // num is likely not pattern as atoi("AAA") will be zero...
+ // atoi("AAA") == 0 so !num means we have to investigate
if (use_num && ((u64)num == pattern || !num)) {
u8 tmp_buf[32];
@@ -881,29 +925,6 @@
if (pattern != o_pattern && repl == changed_val && attr <= IS_EQUAL) {
u64 b_val, o_b_val, mask;
- u8 bytes;
-
- switch (hshape) {
-
- case 0:
- case 1:
- bytes = 1;
- break;
- case 2:
- bytes = 2;
- break;
- case 3:
- case 4:
- bytes = 4;
- break;
- default:
- bytes = 8;
-
- }
-
- // necessary for preventing heap access overflow
- bytes = MIN(bytes, len - idx);
-
switch (bytes) {
case 0: // cannot happen
@@ -961,10 +982,12 @@
// test for arithmetic, eg. "if ((user_val - 0x1111) == 0x1234) ..."
s64 diff = pattern - b_val;
s64 o_diff = o_pattern - o_b_val;
- /* fprintf(stderr, "DIFF1 idx=%03u shape=%02u %llx-%llx=%lx\n", idx,
- hshape, o_pattern, o_b_val, o_diff);
- fprintf(stderr, "DIFF1 %016llx %llx-%llx=%lx\n", repl, pattern,
- b_val, diff); */
+ /*
+ fprintf(stderr, "DIFF1 idx=%03u shape=%02u %llx-%llx=%lx\n", idx,
+ hshape, o_pattern, o_b_val, o_diff);
+ fprintf(stderr, "DIFF1 %016llx %llx-%llx=%lx\n", repl, pattern,
+ b_val, diff);
+ */
if (diff == o_diff && diff) {
// this could be an arithmetic transformation
@@ -1269,13 +1292,141 @@
}
- // here we add and subract 1 from the value, but only if it is not an
+ // If 'S' is set for cmplog mode then we try a scale encoding of the value.
+ // Currently we can only handle bytes up to 1 << 55 on 32 bit and 1 << 119
+ // on 64 bit systems.
+ // Caveat: This implementation here works only on little endian systems.
+
+ if (attr < IS_FP && (afl->cmplog_enable_scale || lvl >= LVL3) &&
+ repl == changed_val) {
+
+ u8 do_call = 1;
+ u64 new_val = repl << 2;
+ u32 ilen = 0;
+
+ if (changed_val <= 255) {
+
+ ilen = 1;
+
+ } else if (new_val <= 65535) {
+
+ new_val += 1; // two byte mode
+ ilen = 2;
+
+ } else if (new_val <= 4294967295) {
+
+ new_val += 2; // four byte mode
+ ilen = 4;
+
+ } else {
+
+#ifndef WORD_SIZE_64
+ if (repl <= 0x00ffffffffffffff) {
+
+ new_val = repl << 8;
+ u8 scale_len = 0;
+ u64 tmp_val = repl;
+ while (tmp_val) {
+
+ tmp_val >>= 8;
+ ++scale_len;
+
+ } // scale_len will be >= 4;
+
+ if (scale_len >= 4) {
+
+ scale_len -= 4;
+
+ } else {
+
+ scale_len = 0;
+
+ };
+
+ new_val += (scale_len << 2) + 3;
+ ilen = scale_len + 5;
+
+ } else {
+
+ do_call = 0;
+
+ }
+
+#else
+ {
+
+ u128 new_vall = ((u128)repl) << 8;
+ u8 scale_len = 0;
+ u128 tmp_val = (u128)repl;
+
+ while (tmp_val) {
+
+ tmp_val >>= 8;
+ ++scale_len;
+
+ } // scale_len will be >= 4;
+
+ if (scale_len >= 4) {
+
+ scale_len -= 4;
+
+ } else {
+
+ scale_len = 0;
+
+ };
+
+ new_vall += (scale_len << 2) + 3;
+ ilen = scale_len + 5;
+
+ if (ilen <= its_len && ilen > 1) {
+
+ u8 tmpbuf[32];
+ memcpy(tmpbuf, buf + idx, ilen);
+ memcpy(buf + idx, (char *)&new_vall, ilen);
+
+ if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+ #ifdef CMPLOG_COMBINE
+ if (*status == 1) { memcpy(cbuf + idx, (char *)&new_vall, ilen); }
+ #endif
+ memcpy(buf + idx, tmpbuf, ilen);
+
+ };
+
+ do_call = 0;
+
+ }
+
+#endif
+
+ }
+
+ if (do_call) {
+
+ if (ilen <= its_len && ilen > 1) {
+
+ u8 tmpbuf[32];
+ memcpy(tmpbuf, buf + idx, ilen);
+ memcpy(buf + idx, (char *)&new_val, ilen);
+
+ if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+#ifdef CMPLOG_COMBINE
+ if (*status == 1) { memcpy(cbuf + idx, (char *)&new_val, ilen); }
+#endif
+ memcpy(buf + idx, tmpbuf, ilen);
+
+ };
+
+ }
+
+ }
+
+ // here we add and subtract 1 from the value, but only if it is not an
// == or != comparison
// Bits: 1 = Equal, 2 = Greater, 4 = Lesser, 8 = Float
// 16 = modified float, 32 = modified integer (modified = wont match
// in original buffer)
- // #ifdef CMPLOG_SOLVE_ARITHMETIC
if (!afl->cmplog_enable_arith || lvl < LVL3 || attr == IS_TRANSFORM) {
return 0;
@@ -1536,6 +1687,77 @@
}
+ // Scale encoding only works on little endian systems
+
+ if (attr < IS_FP && attr < 32 &&
+ (afl->cmplog_enable_scale || lvl >= LVL3)) {
+
+ u128 new_val = repl << 2;
+ u128 max_scale = (u128)1 << 120;
+ u32 ilen = 0;
+ u8 do_call = 1;
+
+ if (new_val <= 255) {
+
+ ilen = 1;
+
+ } else if (new_val <= 65535) {
+
+ new_val += 1; // two byte mode
+ ilen = 2;
+
+ } else if (new_val <= 4294967295) {
+
+ new_val += 2; // four byte mode
+ ilen = 4;
+
+ } else if (repl < max_scale) {
+
+ new_val = (u128)repl << 8;
+ u8 scale_len = 0;
+ u128 tmp_val = (u128)repl;
+ while (tmp_val) {
+
+ tmp_val >>= 8;
+ ++scale_len;
+
+ } // scale_len will be >= 4;
+
+ if (scale_len >= 4) {
+
+ scale_len -= 4;
+
+ } else {
+
+ scale_len = 0;
+
+ };
+
+ new_val += (scale_len << 2) + 3;
+ ilen = scale_len + 5;
+
+ } else {
+
+ do_call = 0;
+
+ }
+
+ if (do_call && ilen <= its_len) {
+
+ u8 tmpbuf[32];
+ memcpy(tmpbuf, buf + idx, ilen);
+ memcpy(buf + idx, (char *)&new_val, ilen);
+
+ if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+ #ifdef CMPLOG_COMBINE
+ if (*status == 1) { memcpy(cbuf + idx, (char *)&new_val, ilen); }
+ #endif
+ memcpy(buf + idx, tmpbuf, ilen);
+
+ };
+
+ }
+
}
return 0;
@@ -1606,7 +1828,7 @@
for (k = 0; k < size; ++k) {
#else
- u32 off = 16 - size;
+ u32 off = 16 - size;
for (k = 16 - size; k < 16; ++k) {
#endif
@@ -1684,6 +1906,8 @@
#endif
+ if (hshape < 2) { return 0; }
+
for (i = 0; i < loggeds; ++i) {
struct cmp_operands *o = &afl->shm.cmp_map->log[key][i];
@@ -1988,10 +2212,10 @@
if (l0 >= 0x80 || ol0 >= 0x80) {
- l0 -= 0x80;
- l1 -= 0x80;
- ol0 -= 0x80;
- ol1 -= 0x80;
+ if (l0 >= 0x80) { l0 -= 0x80; }
+ if (l1 >= 0x80) { l1 -= 0x80; }
+ if (ol0 >= 0x80) { ol0 -= 0x80; }
+ if (ol1 >= 0x80) { ol1 -= 0x80; }
}
@@ -2009,8 +2233,14 @@
its_len = MIN(its_len, taint_len);
u32 saved_its_len = its_len;
+ // fprintf(stderr, "its_len=%u repl=%s\n", its_len, repl);
+
+ if (its_len <= 1) { return 0; }
+
if (lvl & LVL3) {
+ if (memcmp(changed_val, repl, its_len) != 0) { return 0; }
+
u32 max_to = MIN(4U, idx);
if (!(lvl & LVL1) && max_to) { from = 1; }
to = max_to;
@@ -2021,27 +2251,32 @@
(void)(j);
#ifdef _DEBUG
- fprintf(stderr, "RTN T idx=%u lvl=%02x is_txt=%u shape=%u/%u ", idx, lvl,
- o->v0_len >= 0x80 ? 1 : 0, hshape, l0);
- for (j = 0; j < 8; j++)
- fprintf(stderr, "%02x", orig_buf[idx + j]);
- fprintf(stderr, " -> ");
- for (j = 0; j < 8; j++)
- fprintf(stderr, "%02x", o_pattern[j]);
- fprintf(stderr, " <= ");
- for (j = 0; j < 8; j++)
- fprintf(stderr, "%02x", repl[j]);
- fprintf(stderr, "\n");
- fprintf(stderr, " ");
- for (j = 0; j < 8; j++)
- fprintf(stderr, "%02x", buf[idx + j]);
- fprintf(stderr, " -> ");
- for (j = 0; j < 8; j++)
- fprintf(stderr, "%02x", pattern[j]);
- fprintf(stderr, " <= ");
- for (j = 0; j < 8; j++)
- fprintf(stderr, "%02x", changed_val[j]);
- fprintf(stderr, "\n");
+ if (idx == 0) {
+
+ fprintf(stderr, "RTN T idx=%u lvl=%02x is_txt=%u shape=%u/%u ", idx, lvl,
+ o->v0_len >= 0x80 ? 1 : 0, hshape, l0);
+ for (j = 0; j < 8; j++)
+ fprintf(stderr, "%02x", orig_buf[idx + j]);
+ fprintf(stderr, " -> ");
+ for (j = 0; j < 8; j++)
+ fprintf(stderr, "%02x", o_pattern[j]);
+ fprintf(stderr, " <= ");
+ for (j = 0; j < 8; j++)
+ fprintf(stderr, "%02x", repl[j]);
+ fprintf(stderr, "\n");
+ fprintf(stderr, " ");
+ for (j = 0; j < 8; j++)
+ fprintf(stderr, "%02x", buf[idx + j]);
+ fprintf(stderr, " -> ");
+ for (j = 0; j < 8; j++)
+ fprintf(stderr, "%02x", pattern[j]);
+ fprintf(stderr, " <= ");
+ for (j = 0; j < 8; j++)
+ fprintf(stderr, "%02x", changed_val[j]);
+ fprintf(stderr, "\n");
+
+ }
+
#endif
// Try to match the replace value up to 4 bytes before the current idx.
@@ -2050,6 +2285,9 @@
// if (memcmp(user_val, "TEST-VALUE") == 0) ...
// We only do this in lvl 3, otherwise we only do direct matching
+ // fprintf(stderr, "XXXX FROMB64 saved_idx=%u its_len=%u from=%u to=%u FROMHEX
+ // repl=%s\n", saved_idx, saved_its_len, from, to, repl);
+
for (pre = from; pre <= to; pre++) {
if (*status != 1 && (!pre || !memcmp(buf + saved_idx - pre, repl, pre))) {
@@ -2059,7 +2297,7 @@
for (i = 0; i < its_len; ++i) {
- if ((pattern[i] != buf[idx + i] && o_pattern[i] != orig_buf[idx + i]) ||
+ if ((pattern[i] != buf[idx + i] || o_pattern[i] != orig_buf[idx + i]) ||
*status == 1) {
break;
@@ -2089,9 +2327,7 @@
if (afl->cmplog_enable_transform && (lvl & LVL3)) {
u32 toupper = 0, tolower = 0, xor = 0, arith = 0, tohex = 0, fromhex = 0;
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
u32 tob64 = 0, fromb64 = 0;
-#endif
u32 from_0 = 0, from_x = 0, from_X = 0, from_slash = 0, from_up = 0;
u32 to_0 = 0, to_x = 0, to_slash = 0, to_up = 0;
u8 xor_val[32], arith_val[32], tmp[48];
@@ -2144,7 +2380,8 @@
}
- if (i < 16 && is_hex(repl + (i << 1))) {
+ if (afl->cmplog_enable_xtreme_transform && i < 16 &&
+ is_hex(repl + (i << 1))) {
++tohex;
@@ -2163,9 +2400,9 @@
}
- if ((i % 2)) {
+ if (afl->cmplog_enable_xtreme_transform && (i % 2) == 1) {
- if (len > idx + i + 1 && is_hex(orig_buf + idx + i)) {
+ if (len > idx + i + 1 && is_hex(orig_buf + idx + i - 1)) {
fromhex += 2;
@@ -2187,21 +2424,24 @@
}
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
- if (i % 3 == 2 && i < 24) {
+ if (afl->cmplog_enable_xtreme_transform) {
- if (is_base64(repl + ((i / 3) << 2))) tob64 += 3;
+ if (i % 3 == 2 && i < 24) {
+
+ if (is_base64(repl + ((i / 3) << 2))) tob64 += 3;
+
+ }
+
+ // fprintf(stderr, "X FROMB64 idx=%u i=%u repl=%s\n", saved_idx, i,
+ // repl);
+ if (i % 4 == 3 && i < 24) {
+
+ if (is_base64(orig_buf + idx + i - 3)) fromb64 += 4;
+
+ }
}
- if (i % 4 == 3 && i < 24) {
-
- if (is_base64(orig_buf + idx + i - 3)) fromb64 += 4;
-
- }
-
-#endif
-
if ((o_pattern[i] ^ orig_buf[idx + i]) == xor_val[i] && xor_val[i]) {
++xor;
@@ -2229,45 +2469,70 @@
}
#ifdef _DEBUG
- fprintf(stderr,
- "RTN idx=%u loop=%u xor=%u arith=%u tolower=%u toupper=%u "
- "tohex=%u fromhex=%u to_0=%u to_slash=%u to_x=%u "
- "from_0=%u from_slash=%u from_x=%u\n",
- idx, i, xor, arith, tolower, toupper, tohex, fromhex, to_0,
- to_slash, to_x, from_0, from_slash, from_x);
- #ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
- fprintf(stderr, "RTN idx=%u loop=%u tob64=%u from64=%u\n", tob64,
- fromb64);
- #endif
-#endif
+ if (idx == 0) {
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
- // input is base64 and converted to binary? convert repl to base64!
- if ((i % 4) == 3 && i < 24 && fromb64 > i) {
+ fprintf(stderr, "RTN Z %s %s %s %s repl=%s\n", buf, pattern, orig_buf,
+ o_pattern, repl);
+ fprintf(
+ stderr,
+ "RTN Z idx=%u len=%u loop=%u xor=%u arith=%u tolower=%u toupper=%u "
+ "tohex=%u fromhex=%u to_0=%u to_slash=%u to_x=%u "
+ "from_0=%u from_slash=%u from_x=%u\n",
+ idx, its_len, i, xor, arith, tolower, toupper, tohex, fromhex, to_0,
+ to_slash, to_x, from_0, from_slash, from_x);
+ if (afl->cmplog_enable_xtreme_transform) {
- to_base64(repl, tmp, i + 1);
- memcpy(buf + idx, tmp, i + 1);
- if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
- // fprintf(stderr, "RTN ATTEMPT fromb64 %u result %u\n", fromb64,
- // *status);
+ fprintf(stderr, "RTN Z idx=%u loop=%u tob64=%u from64=%u\n", idx, i,
+ tob64, fromb64);
- }
-
- // input is converted to base64? decode repl with base64!
- if ((i % 3) == 2 && i < 24 && tob64 > i) {
-
- u32 olen = from_base64(repl, tmp, i + 1);
- memcpy(buf + idx, tmp, olen);
- if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
- // fprintf(stderr, "RTN ATTEMPT tob64 %u idx=%u result %u\n", tob64,
- // idx, *status);
+ }
}
#endif
+ if (afl->cmplog_enable_xtreme_transform) {
+
+ // input is base64 and converted to binary? convert repl to base64!
+ // fprintf(stderr, "FROMB64 idx=%u i=%u %% 4 == 3 && i < 24 &&
+ // fromb64=%u > i, repl=%s\n", saved_idx, i, fromb64, repl);
+ if ((i % 4) == 3 && i < 24 && fromb64 > i) {
+
+ for (u32 hlen = i; hlen + saved_idx < len && hlen <= its_len;
+ ++hlen) {
+
+ u32 res = to_base64(repl, tmp, hlen);
+ // fprintf(stderr, "FROMB64 GOGO! idx=%u repl=%s tmp[%u]=%s
+ // hlen=%u\n", saved_idx, repl, res, tmp, hlen);
+ if (res + saved_idx < len) {
+
+ memcpy(buf + idx, tmp, res);
+ if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+ // fprintf(stderr, "RTN ATTEMPT FROMB64 idx=%u fromb64 %u %s %s
+ // result %u\n", saved_idx, fromb64, tmp, repl,
+ // *status);
+
+ }
+
+ }
+
+ }
+
+ // input is converted to base64? decode repl with base64!
+ if ((i % 3) == 2 && i < 24 && tob64 > i) {
+
+ u32 olen = from_base64(repl, tmp, i + 1);
+ memcpy(buf + idx, tmp, olen);
+ if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+ // fprintf(stderr, "RTN ATTEMPT tob64 %u idx=%u result %u\n", tob64,
+ // idx, *status);
+
+ }
+
+ }
+
// input is converted to hex? convert repl to binary!
- if (i < 16 && tohex > i) {
+ if (afl->cmplog_enable_xtreme_transform && i < 16 && tohex > i) {
u32 off;
if (to_slash + to_x + to_0 == 2) {
@@ -2292,8 +2557,8 @@
}
// input is hex and converted to binary? convert repl to hex!
- if (i && (i % 2) && i < 16 && fromhex &&
- fromhex + from_slash + from_x + from_0 > i) {
+ if (afl->cmplog_enable_xtreme_transform && (i % 2) == 1 && i < 16 &&
+ fromhex && fromhex + from_slash + from_x + from_0 > i) {
u8 off = 0;
if (from_slash && from_x) {
@@ -2328,32 +2593,37 @@
}
- if (to_up == 1) {
+ for (u32 hlen = i; hlen <= (i << 1) && hlen + idx < len; hlen += i) {
- for (j = 0; j <= (i >> 1); j++) {
+ if (to_up == 1) {
- tmp[off + (j << 1)] = hex_table_up[repl[j] >> 4];
- tmp[off + (j << 1) + 1] = hex_table_up[repl[j] % 16];
+ for (j = 0; j <= (hlen >> 1); j++) {
+
+ tmp[off + (j << 1)] = hex_table_up[repl[j] >> 4];
+ tmp[off + (j << 1) + 1] = hex_table_up[repl[j] % 16];
+
+ }
+
+ } else {
+
+ for (j = 0; j <= (hlen >> 1); j++) {
+
+ tmp[off + (j << 1)] = hex_table_low[repl[j] >> 4];
+ tmp[off + (j << 1) + 1] = hex_table_low[repl[j] % 16];
+
+ }
}
- } else {
-
- for (j = 0; j <= (i >> 1); j++) {
-
- tmp[off + (j << 1)] = hex_table_low[repl[j] >> 4];
- tmp[off + (j << 1) + 1] = hex_table_low[repl[j] % 16];
-
- }
+ memcpy(buf + idx, tmp, hlen + 1 + off);
+ if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
+ tmp[hlen + 1 + off] = 0;
+ // fprintf(stderr, "RTN ATTEMPT idx=%u len=%u fromhex %u %s %s result
+ // %u\n", idx, len, fromhex, tmp, repl, *status);
+ memcpy(buf + idx, save, hlen + 1 + off);
}
- memcpy(buf + idx, tmp, i + 1 + off);
- if (unlikely(its_fuzz(afl, buf, len, status))) { return 1; }
- // fprintf(stderr, "RTN ATTEMPT fromhex %u result %u\n", fromhex,
- // *status);
- memcpy(buf + idx, save, i + 1 + off);
-
}
if (xor > i) {
@@ -2401,11 +2671,9 @@
if ((i >= 7 &&
(i >= xor&&i >= arith &&i >= tolower &&i >= toupper &&i > tohex &&i >
- (fromhex + from_0 + from_x + from_slash + 1)
-#ifdef CMPLOG_SOLVE_TRANSFORM_BASE64
- && i > tob64 + 3 && i > fromb64 + 4
-#endif
- )) ||
+ (fromhex + from_0 + from_x + from_slash + 1) &&
+ (afl->cmplog_enable_xtreme_transform && i > tob64 + 3 &&
+ i > fromb64 + 4))) ||
repl[i] != changed_val[i] || *status == 1) {
break;
@@ -2418,8 +2686,6 @@
}
- // #endif
-
return 0;
}
@@ -2429,11 +2695,13 @@
struct tainted *t;
struct cmp_header *h = &afl->shm.cmp_map->headers[key];
- u32 i, j, idx, have_taint = 1, taint_len, loggeds;
+ u32 i, idx, have_taint = 1, taint_len, loggeds;
u8 status = 0, found_one = 0;
hshape = SHAPE_BYTES(h->shape);
+ if (hshape < 2) { return 0; }
+
if (h->hits > CMP_MAP_RTN_H) {
loggeds = CMP_MAP_RTN_H;
@@ -2452,19 +2720,23 @@
struct cmpfn_operands *orig_o =
&((struct cmpfn_operands *)afl->orig_cmp_map->log[key])[i];
- // opt not in the paper
- for (j = 0; j < i; ++j) {
-
- if (!memcmp(&((struct cmpfn_operands *)afl->shm.cmp_map->log[key])[j], o,
- sizeof(struct cmpfn_operands))) {
-
- goto rtn_fuzz_next_iter;
-
- }
-
- }
-
/*
+ // opt not in the paper
+ for (j = 0; j < i; ++j) {
+
+ if (!memcmp(&((struct cmpfn_operands *)afl->shm.cmp_map->log[key])[j],
+ o, sizeof(struct cmpfn_operands))) {
+
+ goto rtn_fuzz_next_iter;
+
+ }
+
+ }
+
+ */
+
+#ifdef _DEBUG
+ u32 j;
struct cmp_header *hh = &afl->orig_cmp_map->headers[key];
fprintf(stderr, "RTN N hits=%u id=%u shape=%u attr=%u v0=", h->hits, h->id,
hshape, h->attribute);
@@ -2481,7 +2753,7 @@
for (j = 0; j < 8; j++)
fprintf(stderr, "%02x", orig_o->v1[j]);
fprintf(stderr, "\n");
- */
+#endif
t = taint;
while (t->next) {
@@ -2515,7 +2787,7 @@
status = 0;
#ifdef _DEBUG
- int w;
+ u32 w;
fprintf(stderr, "key=%u idx=%u len=%u o0=", key, idx, hshape);
for (w = 0; w < hshape; ++w)
fprintf(stderr, "%02x", orig_o->v0[w]);
@@ -2592,6 +2864,8 @@
// shape_len), check_if_text_buf((u8 *)&o->v1, shape_len), v0_len,
// o->v0, v1_len, o->v1);
+ // Note that this check differs from the line 1901, for RTN we are more
+ // opportunistic for adding to the dictionary than cmps
if (!memcmp(o->v0, orig_o->v0, v0_len) ||
(!found_one || check_if_text_buf((u8 *)&o->v0, v0_len) == v0_len))
maybe_add_auto(afl, o->v0, v0_len);
@@ -2603,7 +2877,7 @@
}
- rtn_fuzz_next_iter:
+ // rtn_fuzz_next_iter:
afl->stage_cur++;
}
@@ -2816,12 +3090,7 @@
}
- } else if ((lvl & LVL1)
-
- // #ifdef CMPLOG_SOLVE_TRANSFORM
- || ((lvl & LVL3) && afl->cmplog_enable_transform)
- // #endif
- ) {
+ } else if ((lvl & LVL1) || ((lvl & LVL3) && afl->cmplog_enable_transform)) {
if (unlikely(rtn_fuzz(afl, k, orig_buf, buf, cbuf, len, lvl, taint))) {
diff --git a/src/afl-fuzz-run.c b/src/afl-fuzz-run.c
index ac4fb4a..d764952 100644
--- a/src/afl-fuzz-run.c
+++ b/src/afl-fuzz-run.c
@@ -10,7 +10,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -60,6 +60,23 @@
fsrv_run_result_t res = afl_fsrv_run_target(fsrv, timeout, &afl->stop_soon);
+ /* If post_run() function is defined in custom mutator, the function will be
+ called each time after AFL++ executes the target program. */
+
+ if (unlikely(afl->custom_mutators_count)) {
+
+ LIST_FOREACH(&afl->custom_mutator_list, struct custom_mutator, {
+
+ if (unlikely(el->afl_custom_post_run)) {
+
+ el->afl_custom_post_run(el->data);
+
+ }
+
+ });
+
+ }
+
#ifdef PROFILING
clock_gettime(CLOCK_REALTIME, &spec);
time_spent_start = (spec.tv_sec * 1000000000) + spec.tv_nsec;
@@ -152,20 +169,16 @@
}
- if (unlikely(afl->custom_mutators_count)) {
+ LIST_FOREACH(&afl->custom_mutator_list, struct custom_mutator, {
- LIST_FOREACH(&afl->custom_mutator_list, struct custom_mutator, {
+ if (el->afl_custom_fuzz_send) {
- if (el->afl_custom_fuzz_send) {
+ el->afl_custom_fuzz_send(el->data, *mem, new_size);
+ sent = 1;
- el->afl_custom_fuzz_send(el->data, *mem, new_size);
- sent = 1;
+ }
- }
-
- });
-
- }
+ });
if (likely(!sent)) {
@@ -186,7 +199,7 @@
}
- } else {
+ } else { /* !afl->custom_mutators_count */
if (unlikely(len < afl->min_length && !fix)) {
@@ -198,27 +211,8 @@
}
- if (unlikely(afl->custom_mutators_count)) {
-
- LIST_FOREACH(&afl->custom_mutator_list, struct custom_mutator, {
-
- if (el->afl_custom_fuzz_send) {
-
- el->afl_custom_fuzz_send(el->data, *mem, len);
- sent = 1;
-
- }
-
- });
-
- }
-
- if (likely(!sent)) {
-
- /* boring uncustom. */
- afl_fsrv_write_to_testcase(&afl->fsrv, *mem, len);
-
- }
+ /* boring uncustom. */
+ afl_fsrv_write_to_testcase(&afl->fsrv, *mem, len);
}
@@ -918,7 +912,7 @@
detected, it will still work to some extent, so we don't check for
this. */
- if (q->len < 5) { return 0; }
+ if (unlikely(q->len < 5)) { return 0; }
afl->stage_name = afl->stage_name_buf;
afl->bytes_trim_in += q->len;
diff --git a/src/afl-fuzz-skipdet.c b/src/afl-fuzz-skipdet.c
new file mode 100644
index 0000000..e52d59a
--- /dev/null
+++ b/src/afl-fuzz-skipdet.c
@@ -0,0 +1,403 @@
+
+
+#include "afl-fuzz.h"
+
+void flip_range(u8 *input, u32 pos, u32 size) {
+
+ for (u32 i = 0; i < size; i++)
+ input[pos + i] ^= 0xFF;
+
+ return;
+
+}
+
+#define MAX_EFF_TIMEOUT (10 * 60 * 1000)
+#define MAX_DET_TIMEOUT (15 * 60 * 1000)
+u8 is_det_timeout(u64 cur_ms, u8 is_flip) {
+
+ if (is_flip) {
+
+ if (unlikely(get_cur_time() - cur_ms > MAX_EFF_TIMEOUT)) return 1;
+
+ } else {
+
+ if (unlikely(get_cur_time() - cur_ms > MAX_DET_TIMEOUT)) return 1;
+
+ }
+
+ return 0;
+
+}
+
+/* decide if the seed should be deterministically fuzzed */
+
+u8 should_det_fuzz(afl_state_t *afl, struct queue_entry *q) {
+
+ if (!afl->skipdet_g->virgin_det_bits) {
+
+ afl->skipdet_g->virgin_det_bits =
+ (u8 *)ck_alloc(sizeof(u8) * afl->fsrv.map_size);
+
+ }
+
+ if (!q->favored || q->passed_det) return 0;
+ if (!q->trace_mini) return 0;
+
+ if (!afl->skipdet_g->last_cov_undet)
+ afl->skipdet_g->last_cov_undet = get_cur_time();
+
+ if (get_cur_time() - afl->skipdet_g->last_cov_undet >= THRESHOLD_DEC_TIME) {
+
+ if (afl->skipdet_g->undet_bits_threshold >= 2) {
+
+ afl->skipdet_g->undet_bits_threshold *= 0.75;
+ afl->skipdet_g->last_cov_undet = get_cur_time();
+
+ }
+
+ }
+
+ u32 new_det_bits = 0;
+
+ for (u32 i = 0; i < afl->fsrv.map_size; i++) {
+
+ if (unlikely(q->trace_mini[i >> 3] & (1 << (i & 7)))) {
+
+ if (!afl->skipdet_g->virgin_det_bits[i]) { new_det_bits++; }
+
+ }
+
+ }
+
+ if (!afl->skipdet_g->undet_bits_threshold)
+ afl->skipdet_g->undet_bits_threshold = new_det_bits * 0.05;
+
+ if (new_det_bits >= afl->skipdet_g->undet_bits_threshold) {
+
+ afl->skipdet_g->last_cov_undet = get_cur_time();
+ q->skipdet_e->undet_bits = new_det_bits;
+
+ for (u32 i = 0; i < afl->fsrv.map_size; i++) {
+
+ if (unlikely(q->trace_mini[i >> 3] & (1 << (i & 7)))) {
+
+ if (!afl->skipdet_g->virgin_det_bits[i])
+ afl->skipdet_g->virgin_det_bits[i] = 1;
+
+ }
+
+ }
+
+ return 1;
+
+ }
+
+ return 0;
+
+}
+
+/*
+ consists of two stages that
+ return 0 if exec failed.
+*/
+
+u8 skip_deterministic_stage(afl_state_t *afl, u8 *orig_buf, u8 *out_buf,
+ u32 len, u64 before_det_time) {
+
+ u64 orig_hit_cnt, new_hit_cnt;
+
+ if (afl->queue_cur->skipdet_e->done_eff) return 1;
+
+ if (!should_det_fuzz(afl, afl->queue_cur)) return 1;
+
+ /* Add check to make sure that for seeds without too much undet bits,
+ we ignore them */
+
+ /******************
+ * SKIP INFERENCE *
+ ******************/
+
+ afl->stage_short = "inf";
+ afl->stage_name = "inference";
+ afl->stage_cur = 0;
+ orig_hit_cnt = afl->queued_items + afl->saved_crashes;
+
+ u8 *inf_eff_map = (u8 *)ck_alloc(sizeof(u8) * len);
+ memset(inf_eff_map, 1, sizeof(u8) * len);
+
+ if (common_fuzz_stuff(afl, orig_buf, len)) { return 0; }
+
+ u64 prev_cksum = hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
+ u64 _prev_cksum = prev_cksum;
+
+ if (MINIMAL_BLOCK_SIZE * 8 < len) {
+
+ // u64 size_skiped = 0, quick_skip_exec = total_execs, quick_skip_time =
+ // get_cur_time();
+ u64 pre_inf_exec = afl->fsrv.total_execs, pre_inf_time = get_cur_time();
+
+ /* if determine stage time / input size is too small, just go ahead */
+
+ u32 pos = 0, cur_block_size = MINIMAL_BLOCK_SIZE, max_block_size = len / 8;
+
+ while (pos < len - 1) {
+
+ cur_block_size = MINIMAL_BLOCK_SIZE;
+
+ while (cur_block_size < max_block_size) {
+
+ u32 flip_block_size =
+ (cur_block_size + pos < len) ? cur_block_size : len - 1 - pos;
+
+ afl->stage_cur += 1;
+
+ flip_range(out_buf, pos, flip_block_size);
+
+ if (common_fuzz_stuff(afl, out_buf, len)) return 0;
+
+ flip_range(out_buf, pos, flip_block_size);
+
+ u64 cksum =
+ hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
+
+ // printf("Now trying range %d with %d, %s.\n", pos, cur_block_size,
+ // (cksum == prev_cksum) ? (u8*)"Yes" : (u8*) "Not");
+
+ /* continue until we fail or exceed length */
+ if (cksum == _prev_cksum) {
+
+ cur_block_size *= 2;
+
+ if (cur_block_size >= len - 1 - pos) break;
+
+ } else {
+
+ break;
+
+ }
+
+ }
+
+ if (cur_block_size == MINIMAL_BLOCK_SIZE) {
+
+ /* we failed early on*/
+
+ pos += cur_block_size;
+
+ } else {
+
+ u32 cur_skip_len = (cur_block_size / 2 + pos < len)
+ ? (cur_block_size / 2)
+ : (len - pos - 1);
+
+ memset(inf_eff_map + pos, 0, cur_skip_len);
+
+ afl->skipdet_g->inf_prof->inf_skipped_bytes += cur_skip_len;
+
+ pos += cur_skip_len;
+
+ }
+
+ }
+
+ afl->skipdet_g->inf_prof->inf_execs_cost +=
+ (afl->fsrv.total_execs - pre_inf_exec);
+ afl->skipdet_g->inf_prof->inf_time_cost += (get_cur_time() - pre_inf_time);
+ // PFATAL("Done, now have %d bytes skipped, with exec %lld, time %lld.\n",
+ // afl->inf_skipped_bytes, afl->inf_execs_cost, afl->inf_time_cost);
+
+ } else
+
+ memset(inf_eff_map, 1, len);
+
+ new_hit_cnt = afl->queued_items + afl->saved_crashes;
+
+ afl->stage_finds[STAGE_INF] += new_hit_cnt - orig_hit_cnt;
+ afl->stage_cycles[STAGE_INF] += afl->stage_cur;
+
+ /****************************
+ * Quick Skip Effective Map *
+ ****************************/
+
+ /* Quick Effective Map Calculation */
+
+ afl->stage_short = "quick";
+ afl->stage_name = "quick eff";
+ afl->stage_cur = 0;
+ afl->stage_max = 32 * 1024;
+
+ orig_hit_cnt = afl->queued_items + afl->saved_crashes;
+
+ u32 before_skip_inf = afl->queued_items;
+
+ /* clean all the eff bytes, since previous eff bytes are already fuzzed */
+ u8 *skip_eff_map = afl->queue_cur->skipdet_e->skip_eff_map,
+ *done_inf_map = afl->queue_cur->skipdet_e->done_inf_map;
+
+ if (!skip_eff_map) {
+
+ skip_eff_map = (u8 *)ck_alloc(sizeof(u8) * len);
+ afl->queue_cur->skipdet_e->skip_eff_map = skip_eff_map;
+
+ } else {
+
+ memset(skip_eff_map, 0, sizeof(u8) * len);
+
+ }
+
+ /* restore the starting point */
+ if (!done_inf_map) {
+
+ done_inf_map = (u8 *)ck_alloc(sizeof(u8) * len);
+ afl->queue_cur->skipdet_e->done_inf_map = done_inf_map;
+
+ } else {
+
+ for (afl->stage_cur = 0; afl->stage_cur < len; afl->stage_cur++) {
+
+ if (done_inf_map[afl->stage_cur] == 0) break;
+
+ }
+
+ }
+
+ /* depending on the seed's performance, we could search eff bytes
+ for multiple rounds */
+
+ u8 eff_round_continue = 1, eff_round_done = 0, done_eff = 0, repeat_eff = 0,
+ fuzz_nearby = 0, *non_eff_bytes = 0;
+
+ u64 before_eff_execs = afl->fsrv.total_execs;
+
+ if (getenv("REPEAT_EFF")) repeat_eff = 1;
+ if (getenv("FUZZ_NEARBY")) fuzz_nearby = 1;
+
+ if (fuzz_nearby) {
+
+ non_eff_bytes = (u8 *)ck_alloc(sizeof(u8) * len);
+
+ // clean exec cksum
+ if (common_fuzz_stuff(afl, out_buf, len)) { return 0; }
+ prev_cksum = hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST);
+
+ }
+
+ do {
+
+ eff_round_continue = 0;
+ afl->stage_max = 32 * 1024;
+
+ for (; afl->stage_cur < afl->stage_max && afl->stage_cur < len;
+ ++afl->stage_cur) {
+
+ afl->stage_cur_byte = afl->stage_cur;
+
+ if (!inf_eff_map[afl->stage_cur_byte] ||
+ skip_eff_map[afl->stage_cur_byte])
+ continue;
+
+ if (is_det_timeout(before_det_time, 1)) { goto cleanup_skipdet; }
+
+ u8 orig = out_buf[afl->stage_cur_byte], replace = rand_below(afl, 256);
+
+ while (replace == orig) {
+
+ replace = rand_below(afl, 256);
+
+ }
+
+ out_buf[afl->stage_cur_byte] = replace;
+
+ before_skip_inf = afl->queued_items;
+
+ if (common_fuzz_stuff(afl, out_buf, len)) { return 0; }
+
+ out_buf[afl->stage_cur_byte] = orig;
+
+ if (fuzz_nearby) {
+
+ if (prev_cksum ==
+ hash64(afl->fsrv.trace_bits, afl->fsrv.map_size, HASH_CONST)) {
+
+ non_eff_bytes[afl->stage_cur_byte] = 1;
+
+ }
+
+ }
+
+ if (afl->queued_items != before_skip_inf) {
+
+ skip_eff_map[afl->stage_cur_byte] = 1;
+ afl->queue_cur->skipdet_e->quick_eff_bytes += 1;
+
+ if (afl->stage_max < MAXIMUM_QUICK_EFF_EXECS) { afl->stage_max *= 2; }
+
+ if (afl->stage_max == MAXIMUM_QUICK_EFF_EXECS && repeat_eff)
+ eff_round_continue = 1;
+
+ }
+
+ done_inf_map[afl->stage_cur_byte] = 1;
+
+ }
+
+ afl->stage_cur = 0;
+ done_eff = 1;
+
+ if (++eff_round_done >= 8) break;
+
+ } while (eff_round_continue);
+
+ new_hit_cnt = afl->queued_items + afl->saved_crashes;
+
+ afl->stage_finds[STAGE_QUICK] += new_hit_cnt - orig_hit_cnt;
+ afl->stage_cycles[STAGE_QUICK] += (afl->fsrv.total_execs - before_eff_execs);
+
+cleanup_skipdet:
+
+ if (fuzz_nearby) {
+
+ u8 *nearby_bytes = (u8 *)ck_alloc(sizeof(u8) * len);
+
+ u32 i = 3;
+ while (i < len) {
+
+ // assume DWORD size, from i - 3 -> i + 3
+ if (skip_eff_map[i]) {
+
+ u32 fill_length = (i + 3 < len) ? 7 : len - i + 2;
+ memset(nearby_bytes + i - 3, 1, fill_length);
+ i += 3;
+
+ } else
+
+ i += 1;
+
+ }
+
+ for (i = 0; i < len; i++) {
+
+ if (nearby_bytes[i] && !non_eff_bytes[i]) skip_eff_map[i] = 1;
+
+ }
+
+ ck_free(nearby_bytes);
+ ck_free(non_eff_bytes);
+
+ }
+
+ if (done_eff) {
+
+ afl->queue_cur->skipdet_e->continue_inf = 0;
+ afl->queue_cur->skipdet_e->done_eff = 1;
+
+ } else {
+
+ afl->queue_cur->skipdet_e->continue_inf = 1;
+
+ }
+
+ return 1;
+
+}
+
diff --git a/src/afl-fuzz-state.c b/src/afl-fuzz-state.c
index 5e73602..4467cae 100644
--- a/src/afl-fuzz-state.c
+++ b/src/afl-fuzz-state.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -89,9 +89,8 @@
afl->w_end = 0.3;
afl->g_max = 5000;
afl->period_pilot_tmp = 5000.0;
- afl->schedule = FAST; /* Power schedule (default: FAST) */
+ afl->schedule = EXPLORE; /* Power schedule (default: EXPLORE)*/
afl->havoc_max_mult = HAVOC_MAX_MULT;
-
afl->clear_screen = 1; /* Window resized? */
afl->havoc_div = 1; /* Cycle count divisor for havoc */
afl->stage_name = "init"; /* Name of the current fuzz stage */
@@ -108,6 +107,7 @@
afl->cmplog_lvl = 2;
afl->min_length = 1;
afl->max_length = MAX_FILE;
+ afl->switch_fuzz_mode = STRATEGY_SWITCH_TIME * 1000;
#ifndef NO_SPLICING
afl->use_splicing = 1;
#endif
@@ -140,6 +140,14 @@
afl->fsrv.child_pid = -1;
afl->fsrv.out_dir_fd = -1;
+ /* Init SkipDet */
+ afl->skipdet_g =
+ (struct skipdet_global *)ck_alloc(sizeof(struct skipdet_global));
+ afl->skipdet_g->inf_prof =
+ (struct inf_profile *)ck_alloc(sizeof(struct inf_profile));
+ afl->havoc_prof =
+ (struct havoc_profile *)ck_alloc(sizeof(struct havoc_profile));
+
init_mopt_globals(afl);
list_append(&afl_states, afl);
@@ -199,6 +207,13 @@
afl->afl_env.afl_exit_on_time =
(u8 *)get_afl_env(afl_environment_variables[i]);
+ } else if (!strncmp(env, "AFL_CRASHING_SEEDS_AS_NEW_CRASH",
+
+ afl_environment_variable_len)) {
+
+ afl->afl_env.afl_crashing_seeds_as_new_crash =
+ atoi((u8 *)get_afl_env(afl_environment_variables[i]));
+
} else if (!strncmp(env, "AFL_NO_AFFINITY",
afl_environment_variable_len)) {
@@ -261,6 +276,13 @@
afl->afl_env.afl_import_first =
get_afl_env(afl_environment_variables[i]) ? 1 : 0;
+ } else if (!strncmp(env, "AFL_FINAL_SYNC",
+
+ afl_environment_variable_len)) {
+
+ afl->afl_env.afl_final_sync =
+ get_afl_env(afl_environment_variables[i]) ? 1 : 0;
+
} else if (!strncmp(env, "AFL_CUSTOM_MUTATOR_ONLY",
afl_environment_variable_len)) {
@@ -301,6 +323,13 @@
afl->afl_env.afl_ignore_problems =
get_afl_env(afl_environment_variables[i]) ? 1 : 0;
+ } else if (!strncmp(env, "AFL_IGNORE_SEED_PROBLEMS",
+
+ afl_environment_variable_len)) {
+
+ afl->afl_env.afl_ignore_seed_problems =
+ get_afl_env(afl_environment_variables[i]) ? 1 : 0;
+
} else if (!strncmp(env, "AFL_IGNORE_TIMEOUTS",
afl_environment_variable_len)) {
diff --git a/src/afl-fuzz-stats.c b/src/afl-fuzz-stats.c
index 07157bf..7657708 100644
--- a/src/afl-fuzz-stats.c
+++ b/src/afl-fuzz-stats.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -27,6 +27,50 @@
#include "envs.h"
#include <limits.h>
+static char fuzzing_state[4][12] = {"started :-)", "in progress", "final phase",
+ "finished..."};
+
+char *get_fuzzing_state(afl_state_t *afl) {
+
+ u64 cur_ms = get_cur_time();
+ u64 last_find = cur_ms - afl->last_find_time;
+ u64 cur_run_time = cur_ms - afl->start_time;
+ u64 cur_total_run_time = afl->prev_run_time + cur_run_time;
+
+ if (unlikely(afl->non_instrumented_mode)) {
+
+ return fuzzing_state[1];
+
+ } else if (unlikely(cur_run_time < 60 * 3 * 1000 ||
+
+ cur_total_run_time < 60 * 5 * 1000)) {
+
+ return fuzzing_state[0];
+
+ } else {
+
+ u64 last_find_100 = 100 * last_find;
+ u64 percent_cur = last_find_100 / cur_run_time;
+ u64 percent_total = last_find_100 / cur_total_run_time;
+
+ if (unlikely(percent_cur >= 80 && percent_total >= 80)) {
+
+ return fuzzing_state[3];
+
+ } else if (unlikely(percent_cur >= 55 && percent_total >= 55)) {
+
+ return fuzzing_state[2];
+
+ } else {
+
+ return fuzzing_state[1];
+
+ }
+
+ }
+
+}
+
/* Write fuzzer setup file */
void write_setup_file(afl_state_t *afl, u32 argc, char **argv) {
@@ -206,11 +250,13 @@
#endif
u64 cur_time = get_cur_time();
- u8 fn[PATH_MAX];
+ u8 fn_tmp[PATH_MAX];
+ u8 fn_final[PATH_MAX];
FILE *f;
- snprintf(fn, PATH_MAX, "%s/fuzzer_stats", afl->out_dir);
- f = create_ffile(fn);
+ snprintf(fn_tmp, PATH_MAX, "%s/.fuzzer_stats_tmp", afl->out_dir);
+ snprintf(fn_final, PATH_MAX, "%s/fuzzer_stats", afl->out_dir);
+ f = create_ffile(fn_tmp);
/* Keep last values in case we're called from another context
where exec/sec stats and such are not readily available. */
@@ -242,6 +288,8 @@
#ifndef __HAIKU__
if (getrusage(RUSAGE_CHILDREN, &rus)) { rus.ru_maxrss = 0; }
#endif
+ u64 runtime = afl->prev_run_time + cur_time - afl->start_time;
+ if (!runtime) { runtime = 1; }
fprintf(
f,
@@ -290,17 +338,14 @@
"target_mode : %s%s%s%s%s%s%s%s%s%s\n"
"command_line : %s\n",
(afl->start_time - afl->prev_run_time) / 1000, cur_time / 1000,
- (afl->prev_run_time + cur_time - afl->start_time) / 1000, (u32)getpid(),
+ runtime / 1000, (u32)getpid(),
afl->queue_cycle ? (afl->queue_cycle - 1) : 0, afl->cycles_wo_finds,
afl->longest_find_time > cur_time - afl->last_find_time
? afl->longest_find_time / 1000
: ((afl->start_time == 0 || afl->last_find_time == 0)
? 0
: (cur_time - afl->last_find_time) / 1000),
- afl->fsrv.total_execs,
- afl->fsrv.total_execs /
- ((double)(afl->prev_run_time + get_cur_time() - afl->start_time) /
- 1000),
+ afl->fsrv.total_execs, afl->fsrv.total_execs / ((double)(runtime) / 1000),
afl->last_avg_execs_saved, afl->queued_items, afl->queued_favored,
afl->queued_discovered, afl->queued_imported, afl->queued_variable,
afl->max_depth, afl->current_entry, afl->pending_favored,
@@ -368,6 +413,7 @@
}
fclose(f);
+ rename(fn_tmp, fn_final);
}
@@ -456,6 +502,44 @@
}
+/* Log deterministic stage efficiency */
+
+void plot_profile_data(afl_state_t *afl, struct queue_entry *q) {
+
+ u64 current_ms = get_cur_time() - afl->start_time;
+
+ u32 current_edges = count_non_255_bytes(afl, afl->virgin_bits);
+ double det_finding_rate = (double)afl->havoc_prof->total_det_edge * 100.0 /
+ (double)current_edges,
+ det_time_rate = (double)afl->havoc_prof->total_det_time * 100.0 /
+ (double)current_ms;
+
+ u32 ndet_bits = 0;
+ for (u32 i = 0; i < afl->fsrv.map_size; i++) {
+
+ if (afl->skipdet_g->virgin_det_bits[i]) ndet_bits += 1;
+
+ }
+
+ double det_fuzzed_rate = (double)ndet_bits * 100.0 / (double)current_edges;
+
+ fprintf(afl->fsrv.det_plot_file,
+ "[%02lld:%02lld:%02lld] fuzz %d (%d), find %d/%d among %d(%02.2f) "
+ "and spend %lld/%lld(%02.2f), cover %02.2f yet, %d/%d undet bits, "
+ "continue %d.\n",
+ current_ms / 1000 / 3600, (current_ms / 1000 / 60) % 60,
+ (current_ms / 1000) % 60, afl->current_entry, q->fuzz_level,
+ afl->havoc_prof->edge_det_stage, afl->havoc_prof->edge_havoc_stage,
+ current_edges, det_finding_rate,
+ afl->havoc_prof->det_stage_time / 1000,
+ afl->havoc_prof->havoc_stage_time / 1000, det_time_rate,
+ det_fuzzed_rate, q->skipdet_e->undet_bits,
+ afl->skipdet_g->undet_bits_threshold, q->skipdet_e->continue_inf);
+
+ fflush(afl->fsrv.det_plot_file);
+
+}
+
/* Check terminal dimensions after resize. */
static void check_term_size(afl_state_t *afl) {
@@ -734,10 +818,29 @@
if (unlikely(!banner[0])) {
char *si = "";
+ char *fuzzer_name;
+
if (afl->sync_id) { si = afl->sync_id; }
memset(banner, 0, sizeof(banner));
- banner_len = (afl->crash_mode ? 20 : 18) + strlen(VERSION) + strlen(si) +
- strlen(afl->power_name) + 4 + 6;
+
+ banner_len = strlen(VERSION) + strlen(si) + strlen(afl->power_name) + 4 + 6;
+
+ if (afl->crash_mode) {
+
+ fuzzer_name = "peruvian were-rabbit";
+
+ } else {
+
+ fuzzer_name = "american fuzzy lop";
+ if (banner_len + strlen(fuzzer_name) + strlen(afl->use_banner) > 75) {
+
+ fuzzer_name = "AFL";
+
+ }
+
+ }
+
+ banner_len += strlen(fuzzer_name);
if (strlen(afl->use_banner) + banner_len > 75) {
@@ -754,19 +857,18 @@
if (afl->fsrv.nyx_mode) {
snprintf(banner + banner_pad, sizeof(banner) - banner_pad,
- "%s " cLCY VERSION cLBL " {%s} " cLGN "(%s) " cPIN "[%s] - Nyx",
- afl->crash_mode ? cPIN "peruvian were-rabbit"
- : cYEL "american fuzzy lop",
- si, afl->use_banner, afl->power_name);
+ "%s%s " cLCY VERSION cLBL " {%s} " cLGN "(%s) " cPIN
+ "[%s] - Nyx",
+ afl->crash_mode ? cPIN : cYEL, fuzzer_name, si, afl->use_banner,
+ afl->power_name);
} else {
#endif
snprintf(banner + banner_pad, sizeof(banner) - banner_pad,
- "%s " cLCY VERSION cLBL " {%s} " cLGN "(%s) " cPIN "[%s]",
- afl->crash_mode ? cPIN "peruvian were-rabbit"
- : cYEL "american fuzzy lop",
- si, afl->use_banner, afl->power_name);
+ "%s%s " cLCY VERSION cLBL " {%s} " cLGN "(%s) " cPIN "[%s]",
+ afl->crash_mode ? cPIN : cYEL, fuzzer_name, si, afl->use_banner,
+ afl->power_name);
#ifdef __linux__
@@ -995,7 +1097,7 @@
sprintf(tmp, "%s (%s%s saved)", u_stringify_int(IB(0), afl->total_tmouts),
u_stringify_int(IB(1), afl->saved_tmouts),
- (afl->saved_hangs >= KEEP_UNIQUE_HANG) ? "+" : "");
+ (afl->saved_tmouts >= KEEP_UNIQUE_HANG) ? "+" : "");
SAYF(bSTG bV bSTOP " total tmouts : " cRST "%-20s" bSTG bV "\n", tmp);
@@ -1282,7 +1384,11 @@
}
/* Last line */
- SAYF(SET_G1 "\n" bSTG bLB bH30 bH20 bH2 bRB bSTOP cRST RESET_G1);
+
+ SAYF(SET_G1 "\n" bSTG bLB bH cCYA bSTOP " strategy:" cPIN
+ " %s " bSTG bH10 cCYA bSTOP " state:" cPIN
+ " %s " bSTG bH2 bRB bSTOP cRST RESET_G1,
+ afl->fuzz_mode == 0 ? "explore" : "exploit", get_fuzzing_state(afl));
#undef IB
@@ -1823,7 +1929,7 @@
sprintf(tmp, "%s (%s%s saved)", u_stringify_int(IB(0), afl->total_tmouts),
u_stringify_int(IB(1), afl->saved_tmouts),
- (afl->saved_hangs >= KEEP_UNIQUE_HANG) ? "+" : "");
+ (afl->saved_tmouts >= KEEP_UNIQUE_HANG) ? "+" : "");
SAYF(bSTG bV bSTOP " burned pizzas : " cRST "%-20s" bSTG bV
"\n",
@@ -2260,7 +2366,12 @@
stringify_int(IB(0), min_us), stringify_int(IB(1), max_us),
stringify_int(IB(2), avg_us));
- if (afl->timeout_given != 1) {
+ if (afl->timeout_given == 3) {
+
+ ACTF("Applying timeout settings from resumed session (%u ms).",
+ afl->fsrv.exec_tmout);
+
+ } else if (afl->timeout_given != 1) {
/* Figure out the appropriate timeout. The basic idea is: 5x average or
1x max, rounded up to EXEC_TM_ROUND ms and capped at 1 second.
@@ -2302,11 +2413,6 @@
afl->timeout_given = 1;
- } else if (afl->timeout_given == 3) {
-
- ACTF("Applying timeout settings from resumed session (%u ms).",
- afl->fsrv.exec_tmout);
-
} else {
ACTF("-t option specified. We'll use an exec timeout of %u ms.",
diff --git a/src/afl-fuzz-statsd.c b/src/afl-fuzz-statsd.c
index e835c8e..2e42ea9 100644
--- a/src/afl-fuzz-statsd.c
+++ b/src/afl-fuzz-statsd.c
@@ -223,7 +223,7 @@
char tags[MAX_TAG_LEN * 2] = {0};
if (afl->statsd_tags_format) {
- snprintf(tags, MAX_TAG_LEN * 2, afl->statsd_tags_format, afl->use_banner,
+ snprintf(tags, MAX_TAG_LEN * 2, afl->statsd_tags_format, afl->sync_id,
VERSION);
}
diff --git a/src/afl-fuzz.c b/src/afl-fuzz.c
index 4134b99..12d67fe 100644
--- a/src/afl-fuzz.c
+++ b/src/afl-fuzz.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -125,12 +125,20 @@
"Required parameters:\n"
" -i dir - input directory with test cases (or '-' to resume, "
- "also see AFL_AUTORESUME)\n"
+ "also see \n"
+ " AFL_AUTORESUME)\n"
" -o dir - output directory for fuzzer findings\n\n"
"Execution control settings:\n"
+ " -P strategy - set fix mutation strategy: explore (focus on new "
+ "coverage),\n"
+ " exploit (focus on triggering crashes). You can also "
+ "set a\n"
+ " number of seconds after without any finds it switches "
+ "to\n"
+ " exploit mode, and back on new coverage (default: %u)\n"
" -p schedule - power schedules compute a seed's performance score:\n"
- " fast(default), explore, exploit, seek, rare, mmopt, "
+ " explore(default), fast, exploit, seek, rare, mmopt, "
"coe, lin\n"
" quad -- see docs/FAQ.md for more information\n"
" -f file - location read by the fuzzed program (default: stdin "
@@ -157,25 +165,30 @@
"\n"
"Mutator settings:\n"
+ " -a type - target input format, \"text\" or \"binary\" (default: "
+ "generic)\n"
" -g minlength - set min length of generated fuzz input (default: 1)\n"
" -G maxlength - set max length of generated fuzz input (default: "
"%lu)\n"
- " -D - enable deterministic fuzzing (once per queue entry)\n"
+ " -D - enable (a new) effective deterministic fuzzing\n"
" -L minutes - use MOpt(imize) mode and set the time limit for "
"entering the\n"
" pacemaker mode (minutes of no new finds). 0 = "
"immediately,\n"
" -1 = immediately and together with normal mutation.\n"
+ " Note: this option is usually not very effective\n"
" -c program - enable CmpLog by specifying a binary compiled for "
"it.\n"
" if using QEMU/FRIDA or the fuzzing target is "
"compiled\n"
- " for CmpLog then just use -c 0.\n"
+ " for CmpLog then use '-c 0'. To disable Cmplog use '-c "
+ "-'.\n"
" -l cmplog_opts - CmpLog configuration values (e.g. \"2ATR\"):\n"
" 1=small files, 2=larger files (default), 3=all "
"files,\n"
" A=arithmetic solving, T=transformational solving,\n"
- " R=random colorization bytes.\n\n"
+ " X=extreme transform solving, R=random colorization "
+ "bytes.\n\n"
"Fuzzing behavior settings:\n"
" -Z - sequential queue selection instead of weighted "
"random\n"
@@ -212,7 +225,8 @@
" -e ext - file extension for the fuzz test input file (if "
"needed)\n"
"\n",
- argv0, EXEC_TIMEOUT, MEM_LIMIT, MAX_FILE, FOREIGN_SYNCS_MAX);
+ argv0, STRATEGY_SWITCH_TIME, EXEC_TIMEOUT, MEM_LIMIT, MAX_FILE,
+ FOREIGN_SYNCS_MAX);
if (more_help > 1) {
@@ -252,6 +266,7 @@
"AFL_DUMB_FORKSRV: use fork server without feedback from target\n"
"AFL_EXIT_WHEN_DONE: exit when all inputs are run and no new finds are found\n"
"AFL_EXIT_ON_TIME: exit when no new coverage is found within the specified time\n"
+ "AFL_EXIT_ON_SEED_ISSUES: exit on any kind of seed issues\n"
"AFL_EXPAND_HAVOC_NOW: immediately enable expand havoc mode (default: after 60\n"
" minutes and a cycle without finds)\n"
"AFL_FAST_CAL: limit the calibration stage to three cycles for speedup\n"
@@ -262,11 +277,14 @@
"AFL_IGNORE_PROBLEMS: do not abort fuzzing if an incorrect setup is detected\n"
"AFL_IGNORE_PROBLEMS_COVERAGE: if set in addition to AFL_IGNORE_PROBLEMS - also\n"
" ignore those libs for coverage\n"
+ "AFL_IGNORE_SEED_PROBLEMS: skip over crashes and timeouts in the seeds instead of\n"
+ " exiting\n"
"AFL_IGNORE_TIMEOUTS: do not process or save any timeouts\n"
"AFL_IGNORE_UNKNOWN_ENVS: don't warn on unknown env vars\n"
"AFL_IMPORT_FIRST: sync and import test cases from other fuzzer instances first\n"
"AFL_INPUT_LEN_MIN/AFL_INPUT_LEN_MAX: like -g/-G set min/max fuzz length produced\n"
- "AFL_PIZZA_MODE: 1 - enforce pizza mode, 0 - disable for April 1st\n"
+ "AFL_PIZZA_MODE: 1 - enforce pizza mode, -1 - disable for April 1st,\n"
+ " 0 (default) - activate on April 1st\n"
"AFL_KILL_SIGNAL: Signal ID delivered to child processes on timeout, etc.\n"
" (default: SIGKILL)\n"
"AFL_FORK_SERVER_KILL_SIGNAL: Kill signal for the fork server on termination\n"
@@ -285,8 +303,14 @@
"AFL_NO_FORKSRV: run target via execve instead of using the forkserver\n"
"AFL_NO_SNAPSHOT: do not use the snapshot feature (if the snapshot lkm is loaded)\n"
"AFL_NO_STARTUP_CALIBRATION: no initial seed calibration, start fuzzing at once\n"
+ "AFL_NO_WARN_INSTABILITY: no warn about instability issues on startup calibration\n"
"AFL_NO_UI: switch status screen off\n"
-
+ "AFL_NYX_AUX_SIZE: size of the Nyx auxiliary buffer. Must be a multiple of 4096.\n"
+ " Increase this value in case the crash reports are truncated.\n"
+ " Default value is 4096.\n"
+ "AFL_NYX_DISABLE_SNAPSHOT_MODE: disable snapshot mode (must be supported by the agent)\n"
+ "AFL_NYX_LOG: output NYX hprintf messages to another file\n"
+ "AFL_NYX_REUSE_SNAPSHOT: reuse an existing Nyx root snapshot\n"
DYN_COLOR
"AFL_PATH: path to AFL support binaries\n"
@@ -295,8 +319,8 @@
PERSISTENT_MSG
- "AFL_POST_PROCESS_KEEP_ORIGINAL: save the file as it was prior post-processing to the queue,\n"
- " but execute the post-processed one\n"
+ "AFL_POST_PROCESS_KEEP_ORIGINAL: save the file as it was prior post-processing to\n"
+ " the queue, but execute the post-processed one\n"
"AFL_PRELOAD: LD_PRELOAD / DYLD_INSERT_LIBRARIES settings for target\n"
"AFL_TARGET_ENV: pass extra environment variables to target\n"
"AFL_SHUFFLE_QUEUE: reorder the input queue randomly on startup\n"
@@ -307,18 +331,18 @@
"AFL_STATSD_HOST: change default statsd host (default 127.0.0.1)\n"
"AFL_STATSD_PORT: change default statsd port (default: 8125)\n"
"AFL_STATSD_TAGS_FLAVOR: set statsd tags format (default: disable tags)\n"
- " Supported formats are: 'dogstatsd', 'librato',\n"
- " 'signalfx' and 'influxdb'\n"
+ " suported formats: dogstatsd, librato, signalfx, influxdb\n"
"AFL_SYNC_TIME: sync time between fuzzing instances (in minutes)\n"
+ "AFL_FINAL_SYNC: sync a final time when exiting (will delay the exit!)\n"
"AFL_NO_CRASH_README: do not create a README in the crashes directory\n"
"AFL_TESTCACHE_SIZE: use a cache for testcases, improves performance (in MB)\n"
"AFL_TMPDIR: directory to use for input file generation (ramdisk recommended)\n"
"AFL_EARLY_FORKSERVER: force an early forkserver in an afl-clang-fast/\n"
" afl-clang-lto/afl-gcc-fast target\n"
- "AFL_PERSISTENT: enforce persistent mode (if __AFL_LOOP is in a shared lib\n"
- "AFL_DEFER_FORKSRV: enforced deferred forkserver (__AFL_INIT is in a .so)\n"
- "AFL_FUZZER_STATS_UPDATE_INTERVAL: interval to update fuzzer_stats file in seconds, "
- "(default: 60, minimum: 1)\n"
+ "AFL_PERSISTENT: enforce persistent mode (if __AFL_LOOP is in a shared lib)\n"
+ "AFL_DEFER_FORKSRV: enforced deferred forkserver (__AFL_INIT is in a shared lib)\n"
+ "AFL_FUZZER_STATS_UPDATE_INTERVAL: interval to update fuzzer_stats file in\n"
+ " seconds (default: 60, minimum: 1)\n"
"\n"
);
@@ -357,6 +381,10 @@
SAYF("Compiled with NO_SPLICING.\n");
#endif
+#ifdef FANCY_BOXES_NO_UTF
+ SAYF("Compiled without UTF-8 support for line rendering in status screen.\n");
+#endif
+
#ifdef PROFILING
SAYF("Compiled with PROFILING.\n");
#endif
@@ -458,6 +486,22 @@
struct timeval tv;
struct timezone tz;
+ doc_path = access(DOC_PATH, F_OK) != 0 ? (u8 *)"docs" : (u8 *)DOC_PATH;
+
+ if (argc > 1 && strcmp(argv_orig[1], "--version") == 0) {
+
+ printf("afl-fuzz" VERSION "\n");
+ exit(0);
+
+ }
+
+ if (argc > 1 && strcmp(argv_orig[1], "--help") == 0) {
+
+ usage(argv_orig[0], 1);
+ exit(0);
+
+ }
+
#if defined USE_COLOR && defined ALWAYS_COLORED
if (getenv("AFL_NO_COLOR") || getenv("AFL_NO_COLOUR")) {
@@ -487,21 +531,72 @@
SAYF(cCYA "afl-fuzz" VERSION cRST
" based on afl by Michal Zalewski and a large online community\n");
- doc_path = access(DOC_PATH, F_OK) != 0 ? (u8 *)"docs" : (u8 *)DOC_PATH;
-
gettimeofday(&tv, &tz);
rand_set_seed(afl, tv.tv_sec ^ tv.tv_usec ^ getpid());
afl->shmem_testcase_mode = 1; // we always try to perform shmem fuzzing
- while (
- (opt = getopt(
- argc, argv,
- "+Ab:B:c:CdDe:E:hi:I:f:F:g:G:l:L:m:M:nNOo:p:RQs:S:t:T:UV:WXx:YZ")) >
- 0) {
+ // still available: HjJkKqruvwz
+ while ((opt = getopt(argc, argv,
+ "+a:Ab:B:c:CdDe:E:f:F:g:G:hi:I:l:L:m:M:nNo:Op:P:QRs:S:t:"
+ "T:UV:WXx:YZ")) > 0) {
switch (opt) {
+ case 'a':
+
+ if (!stricmp(optarg, "text") || !stricmp(optarg, "ascii") ||
+ !stricmp(optarg, "txt") || !stricmp(optarg, "asc")) {
+
+ afl->input_mode = 1;
+
+ } else if (!stricmp(optarg, "bin") || !stricmp(optarg, "binary")) {
+
+ afl->input_mode = 2;
+
+ } else if (!stricmp(optarg, "def") || !stricmp(optarg, "default")) {
+
+ afl->input_mode = 0;
+
+ } else {
+
+ FATAL("-a input mode needs to be \"text\" or \"binary\".");
+
+ }
+
+ break;
+
+ case 'P':
+ if (!stricmp(optarg, "explore") || !stricmp(optarg, "exploration")) {
+
+ afl->fuzz_mode = 0;
+ afl->switch_fuzz_mode = 0;
+
+ } else if (!stricmp(optarg, "exploit") ||
+
+ !stricmp(optarg, "exploitation")) {
+
+ afl->fuzz_mode = 1;
+ afl->switch_fuzz_mode = 0;
+
+ } else {
+
+ if ((afl->switch_fuzz_mode = (u32)atoi(optarg)) > INT_MAX) {
+
+ FATAL(
+ "Parameter for option -P must be \"explore\", \"exploit\" or a "
+ "number!");
+
+ } else {
+
+ afl->switch_fuzz_mode *= 1000;
+
+ }
+
+ }
+
+ break;
+
case 'g':
afl->min_length = atoi(optarg);
break;
@@ -534,8 +629,23 @@
case 'c': {
- afl->shm.cmplog_mode = 1;
- afl->cmplog_binary = ck_strdup(optarg);
+ if (strcmp(optarg, "-") == 0) {
+
+ if (afl->shm.cmplog_mode) {
+
+ ACTF("Disabling cmplog again because of '-c -'.");
+ afl->shm.cmplog_mode = 0;
+ afl->cmplog_binary = NULL;
+
+ }
+
+ } else {
+
+ afl->shm.cmplog_mode = 1;
+ afl->cmplog_binary = ck_strdup(optarg);
+
+ }
+
break;
}
@@ -845,14 +955,20 @@
break;
- case 'D': /* enforce deterministic */
+ case 'D': /* partial deterministic */
afl->skip_deterministic = 0;
break;
- case 'd': /* skip deterministic */
+ case 'd': /* no deterministic */
- afl->skip_deterministic = 1;
+ // this is the default and currently a lot of infrastructure enforces
+ // it (e.g. clusterfuzz, fuzzbench) based on that this feature
+ // originally was bad performance wise. We now have a better
+ // implementation, hence if it is activated, we do not want to
+ // deactivate it by such setups.
+
+ // afl->skip_deterministic = 1;
break;
case 'B': /* load bitmap */
@@ -1056,10 +1172,18 @@
case 'A':
afl->cmplog_enable_arith = 1;
break;
+ case 's':
+ case 'S':
+ afl->cmplog_enable_scale = 1;
+ break;
case 't':
case 'T':
afl->cmplog_enable_transform = 1;
break;
+ case 'x':
+ case 'X':
+ afl->cmplog_enable_xtreme_transform = 1;
+ break;
case 'r':
case 'R':
afl->cmplog_random_colorization = 1;
@@ -1221,6 +1345,10 @@
}
+ WARNF(
+ "Note that the MOpt mode is not maintained and is not as effective "
+ "as normal havoc mode.");
+
} break;
case 'h':
@@ -1242,6 +1370,12 @@
}
+ if (afl->sync_id && strcmp(afl->sync_id, "addseeds") == 0) {
+
+ FATAL("-M/-S name 'addseeds' is a reserved name, choose something else");
+
+ }
+
if (afl->is_main_node == 1 && afl->schedule != FAST &&
afl->schedule != EXPLORE) {
@@ -1296,11 +1430,11 @@
}
#endif
+
+ // silently disable deterministic mutation if custom mutators are used
if (!afl->skip_deterministic && afl->afl_env.afl_custom_mutator_only) {
- FATAL(
- "Using -D determinstic fuzzing is incompatible with "
- "AFL_CUSTOM_MUTATOR_ONLY!");
+ afl->skip_deterministic = 1;
}
@@ -1396,9 +1530,9 @@
if (afl->sync_id) {
- if (strlen(afl->sync_id) > 24) {
+ if (strlen(afl->sync_id) > 50) {
- FATAL("sync_id max length is 24 characters");
+ FATAL("sync_id max length is 50 characters");
}
@@ -1436,8 +1570,7 @@
if (!afl->use_banner) { afl->use_banner = argv[optind]; }
- if (afl->shm.cmplog_mode &&
- (!strcmp("-", afl->cmplog_binary) || !strcmp("0", afl->cmplog_binary))) {
+ if (afl->shm.cmplog_mode && strcmp("0", afl->cmplog_binary) == 0) {
afl->cmplog_binary = strdup(argv[optind]);
@@ -1622,6 +1755,34 @@
}
+ // Marker: ADD_TO_INJECTIONS
+ if (getenv("AFL_LLVM_INJECTIONS_ALL") || getenv("AFL_LLVM_INJECTIONS_SQL") ||
+ getenv("AFL_LLVM_INJECTIONS_LDAP") || getenv("AFL_LLVM_INJECTIONS_XSS")) {
+
+ OKF("Adding injection tokens to dictionary.");
+ if (getenv("AFL_LLVM_INJECTIONS_ALL") ||
+ getenv("AFL_LLVM_INJECTIONS_SQL")) {
+
+ add_extra(afl, "'\"\"'", 4);
+
+ }
+
+ if (getenv("AFL_LLVM_INJECTIONS_ALL") ||
+ getenv("AFL_LLVM_INJECTIONS_LDAP")) {
+
+ add_extra(afl, "*)(1=*))(|", 10);
+
+ }
+
+ if (getenv("AFL_LLVM_INJECTIONS_ALL") ||
+ getenv("AFL_LLVM_INJECTIONS_XSS")) {
+
+ add_extra(afl, "1\"><\"", 5);
+
+ }
+
+ }
+
OKF("Generating fuzz data with a length of min=%u max=%u", afl->min_length,
afl->max_length);
u32 min_alloc = MAX(64U, afl->min_length);
@@ -1657,6 +1818,10 @@
check_cpu_governor(afl);
#endif
+ #ifdef __APPLE__
+ setenv("DYLD_NO_PIE", "1", 0);
+ #endif
+
if (getenv("LD_PRELOAD")) {
WARNF(
@@ -1756,6 +1921,15 @@
bind_to_free_cpu(afl);
#endif /* HAVE_AFFINITY */
+ #ifdef __linux__
+ if (afl->fsrv.nyx_mode && afl->fsrv.nyx_bind_cpu_id == 0xFFFFFFFF) {
+
+ afl->fsrv.nyx_bind_cpu_id = 0;
+
+ }
+
+ #endif
+
#ifdef __HAIKU__
/* Prioritizes performance over power saving */
set_scheduler_mode(SCHEDULER_MODE_LOW_LATENCY);
@@ -2274,7 +2448,7 @@
} else {
- ACTF("skipping initial seed calibration due option override");
+ ACTF("skipping initial seed calibration due option override!");
usleep(1000);
}
@@ -2319,6 +2493,7 @@
max_ms = afl->queue_buf[entry]->exec_us;
afl->fsrv.exec_tmout = max_ms;
+ afl->timeout_given = 1;
}
@@ -2611,23 +2786,53 @@
if (likely(!afl->old_seed_selection)) {
- if (unlikely(prev_queued_items < afl->queued_items ||
- afl->reinit_table)) {
+ if (likely(afl->pending_favored && afl->smallest_favored >= 0)) {
- // we have new queue entries since the last run, recreate alias table
- prev_queued_items = afl->queued_items;
- create_alias_table(afl);
+ afl->current_entry = afl->smallest_favored;
+
+ /*
+
+ } else {
+
+ for (s32 iter = afl->queued_items - 1; iter >= 0; --iter)
+ {
+
+ if (unlikely(afl->queue_buf[iter]->favored &&
+ !afl->queue_buf[iter]->was_fuzzed)) {
+
+ afl->current_entry = iter;
+ break;
+
+ }
+
+ }
+
+ */
+
+ afl->queue_cur = afl->queue_buf[afl->current_entry];
+
+ } else {
+
+ if (unlikely(prev_queued_items < afl->queued_items ||
+ afl->reinit_table)) {
+
+ // we have new queue entries since the last run, recreate alias
+ // table
+ prev_queued_items = afl->queued_items;
+ create_alias_table(afl);
+
+ }
+
+ do {
+
+ afl->current_entry = select_next_queue_entry(afl);
+
+ } while (unlikely(afl->current_entry >= afl->queued_items));
+
+ afl->queue_cur = afl->queue_buf[afl->current_entry];
}
- do {
-
- afl->current_entry = select_next_queue_entry(afl);
-
- } while (unlikely(afl->current_entry >= afl->queued_items));
-
- afl->queue_cur = afl->queue_buf[afl->current_entry];
-
}
skipped_fuzz = fuzz_one(afl);
@@ -2688,13 +2893,34 @@
} while (skipped_fuzz && afl->queue_cur && !afl->stop_soon);
+ u64 cur_time = get_cur_time();
+
+ if (likely(afl->switch_fuzz_mode && afl->fuzz_mode == 0 &&
+ !afl->non_instrumented_mode) &&
+ unlikely(cur_time > (likely(afl->last_find_time) ? afl->last_find_time
+ : afl->start_time) +
+ afl->switch_fuzz_mode)) {
+
+ if (afl->afl_env.afl_no_ui) {
+
+ ACTF(
+ "No new coverage found for %llu seconds, switching to exploitation "
+ "strategy.",
+ afl->switch_fuzz_mode / 1000);
+
+ }
+
+ afl->fuzz_mode = 1;
+
+ }
+
if (likely(!afl->stop_soon && afl->sync_id)) {
if (likely(afl->skip_deterministic)) {
if (unlikely(afl->is_main_node)) {
- if (unlikely(get_cur_time() >
+ if (unlikely(cur_time >
(afl->sync_time >> 1) + afl->last_sync_time)) {
if (!(sync_interval_cnt++ % (SYNC_INTERVAL / 3))) {
@@ -2707,7 +2933,7 @@
} else {
- if (unlikely(get_cur_time() > afl->sync_time + afl->last_sync_time)) {
+ if (unlikely(cur_time > afl->sync_time + afl->last_sync_time)) {
if (!(sync_interval_cnt++ % SYNC_INTERVAL)) { sync_fuzzers(afl); }
@@ -2790,6 +3016,16 @@
time_spent_working / afl->fsrv.total_execs);
#endif
+ if (afl->afl_env.afl_final_sync) {
+
+ SAYF(cYEL "[!] " cRST
+ "\nPerforming final sync, this make take some time ...\n");
+ sync_fuzzers(afl);
+ write_bitmap(afl);
+ SAYF(cYEL "[!] " cRST "Done!\n\n");
+
+ }
+
if (afl->is_main_node) {
u8 path[PATH_MAX];
@@ -2801,6 +3037,11 @@
if (frida_afl_preload) { ck_free(frida_afl_preload); }
fclose(afl->fsrv.plot_file);
+
+ #ifdef INTROSPECTION
+ fclose(afl->fsrv.det_plot_file);
+ #endif
+
destroy_queue(afl);
destroy_extras(afl);
destroy_custom_mutators(afl);
diff --git a/src/afl-gotcpu.c b/src/afl-gotcpu.c
index 4f85109..7aee298 100644
--- a/src/afl-gotcpu.c
+++ b/src/afl-gotcpu.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/src/afl-ld-lto.c b/src/afl-ld-lto.c
index 420dd81..513c1ae 100644
--- a/src/afl-ld-lto.c
+++ b/src/afl-ld-lto.c
@@ -9,7 +9,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Dominik Maier <domenukk@gmail.com>
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -23,7 +23,9 @@
*/
#define AFL_MAIN
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+ #define _GNU_SOURCE
+#endif
#include "config.h"
#include "types.h"
@@ -37,6 +39,7 @@
#include <time.h>
#include <ctype.h>
#include <fcntl.h>
+#include <limits.h>
#include <sys/stat.h>
#include <sys/types.h>
@@ -45,11 +48,6 @@
#include <dirent.h>
-#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || \
- defined(__DragonFly__)
- #include <limits.h>
-#endif
-
#ifdef __APPLE__
#include <sys/syslimits.h>
#endif
@@ -280,7 +278,7 @@
if (getenv("AFL_LD_PASSTHROUGH") != NULL) passthrough = 1;
if (getenv("AFL_REAL_LD") != NULL) real_ld = getenv("AFL_REAL_LD");
- if (!afl_path || !*afl_path) afl_path = "/usr/local/lib/afl";
+ if (!afl_path || !*afl_path) afl_path = AFL_PATH;
setenv("AFL_LD_CALLER", "1", 1);
diff --git a/src/afl-performance.c b/src/afl-performance.c
index 0450741..07c1b52 100644
--- a/src/afl-performance.c
+++ b/src/afl-performance.c
@@ -1,24 +1,3 @@
-/*
- Written in 2019 by David Blackman and Sebastiano Vigna (vigna@acm.org)
-
- To the extent possible under law, the author has dedicated all copyright
- and related and neighboring rights to this software to the public domain
- worldwide. This software is distributed without any warranty.
-
- See <https://creativecommons.org/publicdomain/zero/1.0/>.
-
- This is xoshiro256++ 1.0, one of our all-purpose, rock-solid generators.
- It has excellent (sub-ns) speed, a state (256 bits) that is large
- enough for any parallel application, and it passes all tests we are
- aware of.
-
- For generating just floating-point numbers, xoshiro256+ is even faster.
-
- The state must be seeded so that it is not everywhere zero. If you have
- a 64-bit seed, we suggest to seed a splitmix64 generator and use its
- output to fill s[].
-*/
-
#include <stdint.h>
#include "afl-fuzz.h"
#include "types.h"
diff --git a/src/afl-sharedmem.c b/src/afl-sharedmem.c
index a2c8158..daea8f4 100644
--- a/src/afl-sharedmem.c
+++ b/src/afl-sharedmem.c
@@ -11,7 +11,7 @@
Andrea Fioraldi <andreafioraldi@gmail.com>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/src/afl-showmap.c b/src/afl-showmap.c
index 9c02903..20ba5a5 100644
--- a/src/afl-showmap.c
+++ b/src/afl-showmap.c
@@ -12,7 +12,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -111,8 +111,9 @@
static const u8 count_class_human[256] = {
- [0] = 0, [1] = 1, [2] = 2, [3] = 3, [4] = 4,
- [8] = 5, [16] = 6, [32] = 7, [128] = 8
+ [0] = 0, [1] = 1, [2] = 2, [3] = 3,
+ [4 ... 7] = 4, [8 ... 15] = 5, [16 ... 31] = 6, [32 ... 127] = 7,
+ [128 ... 255] = 8
};
@@ -243,7 +244,8 @@
total += fsrv->trace_bits[i];
if (fsrv->trace_bits[i] > highest) highest = fsrv->trace_bits[i];
- if (!coverage_map[i]) { coverage_map[i] = 1; }
+ // if (!coverage_map[i]) { coverage_map[i] = 1; }
+ coverage_map[i] |= fsrv->trace_bits[i];
}
@@ -328,7 +330,7 @@
if (cmin_mode) {
- fprintf(f, "%u%u\n", fsrv->trace_bits[i], i);
+ fprintf(f, "%u%03u\n", i, fsrv->trace_bits[i]);
} else {
@@ -423,9 +425,9 @@
}
- if (fsrv->trace_bits[0] == 1) {
+ if (fsrv->trace_bits[0]) {
- fsrv->trace_bits[0] = 0;
+ fsrv->trace_bits[0] -= 1;
have_coverage = true;
} else {
@@ -654,9 +656,9 @@
}
- if (fsrv->trace_bits[0] == 1) {
+ if (fsrv->trace_bits[0]) {
- fsrv->trace_bits[0] = 0;
+ fsrv->trace_bits[0] -= 1;
have_coverage = true;
} else {
@@ -1609,6 +1611,7 @@
if (in_dir || in_filelist) {
afl->fsrv.dev_urandom_fd = open("/dev/urandom", O_RDONLY);
+ if (afl->fsrv.dev_urandom_fd < 0) { PFATAL("Unable to open /dev/urandom"); }
afl->afl_env.afl_custom_mutator_library =
getenv("AFL_CUSTOM_MUTATOR_LIBRARY");
afl->afl_env.afl_python_module = getenv("AFL_PYTHON_MODULE");
diff --git a/src/afl-tmin.c b/src/afl-tmin.c
index e7442d1..4e5dab4 100644
--- a/src/afl-tmin.c
+++ b/src/afl-tmin.c
@@ -12,7 +12,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/test-instr.c b/test-instr.c
index eda5189..2855289 100644
--- a/test-instr.c
+++ b/test-instr.c
@@ -3,7 +3,7 @@
--------------------------------------------------------
Originally written by Michal Zalewski
Copyright 2014 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
diff --git a/test/test-all.sh b/test/test-all.sh
index 3cb692c..65cfb81 100755
--- a/test/test-all.sh
+++ b/test/test-all.sh
@@ -16,6 +16,8 @@
. ./test-frida-mode.sh
+. ./test-nyx-mode.sh
+
. ./test-unicorn-mode.sh
. ./test-custom-mutators.sh
diff --git a/test/test-basic.sh b/test/test-basic.sh
index 5bb2ca2..7005d3c 100755
--- a/test/test-basic.sh
+++ b/test/test-basic.sh
@@ -2,6 +2,7 @@
. ./test-pre.sh
+OS=$(uname -s)
AFL_GCC=afl-gcc
$ECHO "$BLUE[*] Testing: ${AFL_GCC}, afl-showmap, afl-fuzz, afl-cmin and afl-tmin"
@@ -28,7 +29,7 @@
rm -f test-instr.plain.0 test-instr.plain.1
SKIP=
TUPLES=`echo 1|AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
- test "$TUPLES" -gt 1 -a "$TUPLES" -lt 12 && {
+ test "$TUPLES" -gt 1 -a "$TUPLES" -lt 22 && {
$ECHO "$GREEN[+] ${AFL_GCC} run reported $TUPLES instrumented locations which is fine"
} || {
$ECHO "$RED[!] ${AFL_GCC} instrumentation produces weird numbers: $TUPLES"
@@ -61,7 +62,7 @@
}
# now we want to be sure that afl-fuzz is working
# make sure crash reporter is disabled on Mac OS X
- (test "$(uname -s)" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
+ (test "$OS" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
$ECHO "$RED[!] we cannot run afl-fuzz with enabled crash reporter. Run 'sudo sh afl-system-config'.$RESET"
true
}) || {
@@ -84,16 +85,20 @@
}
echo 000000000000000000000000 > in/in2
echo 111 > in/in3
- mkdir -p in2
- ../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
- CNT=`ls in2/* 2>/dev/null | wc -l`
- case "$CNT" in
- *2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
- *) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
- CODE=1
- ;;
- esac
- rm -f in2/in*
+ test "$OS" = "Darwin" && {
+ $ECHO "$GREY[*] afl-cmin not available on macOS, cannot test afl-cmin"
+ } || {
+ mkdir -p in2
+ ../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
+ CNT=`ls in2/* 2>/dev/null | wc -l`
+ case "$CNT" in
+ *2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
+ *) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
+ CODE=1
+ ;;
+ esac
+ rm -f in2/in*
+ }
export AFL_QUIET=1
if command -v bash >/dev/null ; then {
../afl-cmin.bash -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null
@@ -152,7 +157,7 @@
}
rm -f test-instr.plain.0 test-instr.plain.1
TUPLES=`echo 1|AFL_QUIET=1 ../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
- test "$TUPLES" -gt 1 -a "$TUPLES" -lt 12 && {
+ test "$TUPLES" -gt 1 -a "$TUPLES" -lt 22 && {
$ECHO "$GREEN[+] ${AFL_CLANG} run reported $TUPLES instrumented locations which is fine"
} || {
$ECHO "$RED[!] ${AFL_CLANG} instrumentation produces weird numbers: $TUPLES"
@@ -182,7 +187,7 @@
}
# now we want to be sure that afl-fuzz is working
# make sure crash reporter is disabled on Mac OS X
- (test "$(uname -s)" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
+ (test "$OS" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
$ECHO "$RED[!] we cannot run afl-fuzz with enabled crash reporter. Run 'sudo sh afl-system-config'.$RESET"
true
}) || {
@@ -204,25 +209,29 @@
}
}
echo 000000000000000000000000 > in/in2
- echo AAA > in/in3
- mkdir -p in2
- ../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
- CNT=`ls in2/* 2>/dev/null | wc -l`
- case "$CNT" in
- *2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
- \ *1|1) { # allow leading whitecase for portability
- test -s in2/* && $ECHO "$YELLOW[?] afl-cmin did minimize to one testcase. This can be a bug or due compiler optimization."
- test -s in2/* || {
- $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
- CODE=1
+ echo AAA > in/in2
+ test "$OS" = "Darwin" && {
+ $ECHO "$GREY[*] afl-cmin not available on macOS, cannot test afl-cmin"
+ } || {
+ mkdir -p in2
+ ../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
+ CNT=`ls in2/* 2>/dev/null | wc -l`
+ case "$CNT" in
+ *2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
+ \ *1|1) { # allow leading whitecase for portability
+ test -s in2/* && $ECHO "$YELLOW[?] afl-cmin did minimize to one testcase. This can be a bug or due compiler optimization."
+ test -s in2/* || {
+ $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
+ CODE=1
+ }
}
- }
- ;;
- *) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
- CODE=1
- ;;
- esac
- rm -f in2/in*
+ ;;
+ *) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
+ CODE=1
+ ;;
+ esac
+ rm -f in2/in*
+ }
export AFL_QUIET=1
if command -v bash >/dev/null ; then {
../afl-cmin.bash -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null
diff --git a/test/test-compilers.sh b/test/test-compilers.sh
new file mode 100755
index 0000000..b47cf38
--- /dev/null
+++ b/test/test-compilers.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+echo Testing compilers ...
+for cc in afl-cc afl-gcc afl-clang afl-clang-fast afl-clang-lto afl-gcc-fast; do
+ test -e ../$cc && { { ../$cc -o t ../test-instr.c >/dev/null 2<&1 && echo Success: $cc ; } || echo Failing: $cc ; } || echo Missing: $cc
+done
+rm -f t
+echo Done!
diff --git a/test/test-custom-mutators.sh b/test/test-custom-mutators.sh
index 49feedc..8c8b0ad 100755
--- a/test/test-custom-mutators.sh
+++ b/test/test-custom-mutators.sh
@@ -38,7 +38,7 @@
# Run afl-fuzz w/ the C mutator
$ECHO "$GREY[*] running afl-fuzz for the C mutator, this will take approx 10 seconds"
{
- AFL_CUSTOM_MUTATOR_LIBRARY=./libexamplemutator.so AFL_CUSTOM_MUTATOR_ONLY=1 ../afl-fuzz -V07 -m ${MEM_LIMIT} -i in -o out -- ./test-custom-mutator >>errors 2>&1
+ AFL_CUSTOM_MUTATOR_LIBRARY=./libexamplemutator.so AFL_CUSTOM_MUTATOR_ONLY=1 ../afl-fuzz -V07 -m ${MEM_LIMIT} -i in -o out -d -- ./test-custom-mutator >>errors 2>&1
} >>errors 2>&1
# Check results
@@ -58,7 +58,7 @@
# Run afl-fuzz w/ multiple C mutators
$ECHO "$GREY[*] running afl-fuzz with multiple custom C mutators, this will take approx 10 seconds"
{
- AFL_CUSTOM_MUTATOR_LIBRARY="./libexamplemutator.so;./libexamplemutator2.so" AFL_CUSTOM_MUTATOR_ONLY=1 ../afl-fuzz -V07 -m ${MEM_LIMIT} -i in -o out -- ./test-multiple-mutators >>errors 2>&1
+ AFL_CUSTOM_MUTATOR_LIBRARY="./libexamplemutator.so;./libexamplemutator2.so" AFL_CUSTOM_MUTATOR_ONLY=1 ../afl-fuzz -V07 -m ${MEM_LIMIT} -i in -o out -d -- ./test-multiple-mutators >>errors 2>&1
} >>errors 2>&1
test -n "$( ls out/default/crashes/id:000000* 2>/dev/null )" && { # TODO: update here
diff --git a/test/test-libextensions.sh b/test/test-libextensions.sh
index 40a898c..f7f86de 100755
--- a/test/test-libextensions.sh
+++ b/test/test-libextensions.sh
@@ -5,7 +5,7 @@
test -z "$AFL_CC" && unset AFL_CC
$ECHO "$BLUE[*] Testing: shared library extensions"
-cc $CFLAGS -o test-compcov test-compcov.c > /dev/null 2>&1
+cc $CFLAGS -O0 -o test-compcov test-compcov.c > /dev/null 2>&1
test -e ../libtokencap.so && {
AFL_TOKEN_FILE=token.out LD_PRELOAD=../libtokencap.so DYLD_INSERT_LIBRARIES=../libtokencap.so DYLD_FORCE_FLAT_NAMESPACE=1 ./test-compcov foobar > /dev/null 2>&1
grep -q BUGMENOT token.out > /dev/null 2>&1 && {
diff --git a/test/test-llvm.sh b/test/test-llvm.sh
index 95e43b1..53bbd7b 100755
--- a/test/test-llvm.sh
+++ b/test/test-llvm.sh
@@ -2,6 +2,8 @@
. ./test-pre.sh
+OS=$(uname -s)
+
$ECHO "$BLUE[*] Testing: llvm_mode, afl-showmap, afl-fuzz, afl-cmin and afl-tmin"
test -e ../afl-clang-fast -a -e ../split-switches-pass.so && {
../afl-clang-fast -o test-instr.plain ../test-instr.c > /dev/null 2>&1
@@ -123,7 +125,7 @@
}
# now we want to be sure that afl-fuzz is working
# make sure crash reporter is disabled on Mac OS X
- (test "$(uname -s)" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
+ (test "$OS" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
$ECHO "$RED[!] we cannot run afl-fuzz with enabled crash reporter. Run 'sudo sh afl-system-config'.$RESET"
CODE=1
true
@@ -146,18 +148,22 @@
}
}
test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc" || {
+ mkdir -p in2
echo 000000000000000000000000 > in/in2
echo 111 > in/in3
- mkdir -p in2
- ../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
- CNT=`ls in2/* 2>/dev/null | wc -l`
- case "$CNT" in
- *2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
- *) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
- CODE=1
- ;;
- esac
- rm -f in2/in*
+ test "$OS" = "Darwin" && {
+ $ECHO "$GREY[*] afl-cmin not available on macOS, cannot test afl-cmin"
+ } || {
+ ../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
+ CNT=`ls in2/* 2>/dev/null | wc -l`
+ case "$CNT" in
+ *2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
+ *) $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
+ CODE=1
+ ;;
+ esac
+ rm -f in2/in*
+ }
export AFL_QUIET=1
if type bash >/dev/null ; then {
../afl-cmin.bash -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null
diff --git a/test/test-nyx-mode.sh b/test/test-nyx-mode.sh
new file mode 100755
index 0000000..6de63f1
--- /dev/null
+++ b/test/test-nyx-mode.sh
@@ -0,0 +1,79 @@
+#!/bin/sh
+
+. ./test-pre.sh
+
+$ECHO "$BLUE[*] Testing: nyx_mode"
+
+test "$CI" = "true" && {
+ $ECHO "$YELLOW[-] nyx_mode cannot be tested in the Github CI, skipping ..."
+ exit 0
+}
+
+unset AFL_CC
+
+test -e ../libnyx.so && {
+ ../afl-cc -o test-instr ../test-instr.c > errors 2>&1
+ test -e test-instr && {
+ {
+ rm -rf nyx-test in out
+ $ECHO "$GREY[*] running nyx_packer"
+ python3 ../nyx_mode/packer/packer/nyx_packer.py \
+ ./test-instr \
+ nyx-test \
+ afl \
+ instrumentation \
+ --fast_reload_mode \
+ --purge > /dev/null 2>&1
+
+ test -e nyx-test/test-instr && {
+
+ $ECHO "$GREY[*] running nyx_config_gen"
+ python3 ../nyx_mode/packer/packer/nyx_config_gen.py nyx-test Kernel > /dev/null 2>&1
+
+ test -e nyx-test/config.ron && {
+ sudo modprobe -r kvm-intel
+ sudo modprobe -r kvm
+ sudo modprobe kvm enable_vmware_backdoor=y
+ sudo modprobe kvm-intel
+ #cat /sys/module/kvm/parameters/enable_vmware_backdoor
+
+ mkdir -p in
+ echo 00000 > in/in
+ $ECHO "$GREY[*] running afl-fuzz for nyx_mode, this will take approx 10 seconds"
+ {
+ AFL_DEBUG=1 ../afl-fuzz -i in -o out -V05 -X -- ./nyx-test >>errors 2>&1
+ } >>errors 2>&1
+ test -n "$( ls out/default/queue/id:000002* 2>/dev/null )" && {
+ $ECHO "$GREEN[+] afl-fuzz is working correctly with nyx_mode"
+ RUNTIME=`grep execs_done out/default/fuzzer_stats | awk '{print$3}'`
+ rm -rf errors nyx-test test-instr in out
+ } || {
+ echo CUT------------------------------------------------------------------CUT
+ cat errors
+ echo CUT------------------------------------------------------------------CUT
+ $ECHO "$RED[!] afl-fuzz is not working correctly with nyx_mode"
+ CODE=1
+ }
+ } || {
+ $ECHO "$RED[!] nyx_packer failed, likely install requirements not met."
+ CODE=1
+ }
+ } || {
+ $ECHO "$RED[!] nyx_packer failed, likely install requirements not met."
+ CODE=1
+ }
+ #rm -rf test-instr in out errors nyx-test
+ }
+ } || {
+ echo CUT------------------------------------------------------------------CUT
+ cat errors
+ echo CUT------------------------------------------------------------------CUT
+ $ECHO "$RED[!] afl-cc compilation of test targets failed - what is going on??"
+ CODE=1
+ }
+} || {
+ $ECHO "$YELLOW[-] nyx_mode is not compiled, cannot test"
+ INCOMPLETE=1
+}
+
+. ./test-post.sh
diff --git a/test/test-pre.sh b/test/test-pre.sh
index 1ca9dfb..ce99641 100755
--- a/test/test-pre.sh
+++ b/test/test-pre.sh
@@ -20,7 +20,7 @@
test -e ./test-all.sh || cd $(dirname $0) || exit 1
test -e ./test-all.sh || { echo Error: you must be in the test/ directory ; exit 1 ; }
export AFL_PATH=`pwd`/..
-export AFL_NO_AFFINITY=1 # workaround for travis that fails for no avail cores
+export AFL_TRY_AFFINITY=1 # workaround for travis that fails for no avail cores
echo 1 > test.1
echo 1 > test.2
diff --git a/test/unittests/unit_rand.c b/test/unittests/unit_rand.c
index 1ad02a8..f89b2ab 100644
--- a/test/unittests/unit_rand.c
+++ b/test/unittests/unit_rand.c
@@ -67,6 +67,7 @@
rand_set_seed(&afl, 1337);
afl.fsrv.dev_urandom_fd = open("/dev/urandom", O_RDONLY);
+ if (afl.fsrv.dev_urandom_fd < 0) { PFATAL("Unable to open /dev/urandom"); }
assert(!(rand_below(&afl, 9000) > 9000));
assert_int_equal(rand_below(&afl, 1), 0);
diff --git a/utils/afl_network_proxy/afl-network-client.c b/utils/afl_network_proxy/afl-network-client.c
index 0416f0f..1f04dd8 100644
--- a/utils/afl_network_proxy/afl-network-client.c
+++ b/utils/afl_network_proxy/afl-network-client.c
@@ -4,7 +4,7 @@
Written by Marc Heuse <mh@mh-sec.de>
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/utils/afl_network_proxy/afl-network-server.c b/utils/afl_network_proxy/afl-network-server.c
index 04309ad..c4a700f 100644
--- a/utils/afl_network_proxy/afl-network-server.c
+++ b/utils/afl_network_proxy/afl-network-server.c
@@ -12,7 +12,7 @@
Dominik Maier <mail@dmnk.co>
Copyright 2016, 2017 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -173,6 +173,7 @@
}
out_file = alloc_printf("%s/.afl-input-temp-%u", use_dir, getpid());
+ fsrv->out_file = out_file;
}
diff --git a/utils/afl_proxy/afl-proxy.c b/utils/afl_proxy/afl-proxy.c
index 531a97a..6cf4763 100644
--- a/utils/afl_proxy/afl-proxy.c
+++ b/utils/afl_proxy/afl-proxy.c
@@ -4,7 +4,7 @@
Written by Marc Heuse <mh@mh-sec.de>
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/utils/afl_untracer/Makefile b/utils/afl_untracer/Makefile
index 14a09b4..264aebe 100644
--- a/utils/afl_untracer/Makefile
+++ b/utils/afl_untracer/Makefile
@@ -3,11 +3,16 @@
else
OPT=-O3
endif
+SYS = $(shell uname -s)
+DL =
+ifeq "$(SYS)" "Linux"
+ DL = -ldl
+endif
all: afl-untracer libtestinstr.so
afl-untracer: afl-untracer.c
- $(CC) $(OPT) -I../../include -g -o afl-untracer afl-untracer.c -ldl
+ $(CC) $(OPT) -I../../include -g -o afl-untracer afl-untracer.c $(DL)
libtestinstr.so: libtestinstr.c
$(CC) -g -O0 -fPIC -o libtestinstr.so -shared libtestinstr.c
diff --git a/utils/afl_untracer/afl-untracer.c b/utils/afl_untracer/afl-untracer.c
index e103821..e6a7451 100644
--- a/utils/afl_untracer/afl-untracer.c
+++ b/utils/afl_untracer/afl-untracer.c
@@ -4,7 +4,7 @@
Written by Marc Heuse <mh@mh-sec.de>
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -53,7 +53,9 @@
#include <pthread.h>
#include <sys/mman.h>
-#include <sys/shm.h>
+#if !defined(__HAIKU__)
+ #include <sys/shm.h>
+#endif
#include <sys/wait.h>
#include <sys/types.h>
@@ -66,6 +68,9 @@
#include <sys/sysctl.h>
#include <sys/user.h>
#include <sys/procctl.h>
+#elif defined(__HAIKU__)
+ #include <kernel/OS.h>
+ #include <kernel/image.h>
#else
#error "Unsupported platform"
#endif
@@ -232,6 +237,30 @@
}
+#elif defined(__HAIKU__)
+ image_info ii;
+ int32 c = 0;
+
+ while (get_next_image_info(0, &c, &ii) == B_OK) {
+
+ liblist[liblist_cnt].name = (u8 *)strdup(ii.name);
+ liblist[liblist_cnt].addr_start = (u64)ii.text;
+ liblist[liblist_cnt].addr_end = (u64)((char *)ii.text + ii.text_size);
+
+ if (debug) {
+
+ fprintf(stderr, "%s:%lx (%lx-%lx)\n", liblist[liblist_cnt].name,
+ (unsigned long)(liblist[liblist_cnt].addr_end -
+ liblist[liblist_cnt].addr_start),
+ (unsigned long)liblist[liblist_cnt].addr_start,
+ (unsigned long)(liblist[liblist_cnt].addr_end - 1));
+
+ }
+
+ liblist_cnt++;
+
+ }
+
#endif
}
@@ -655,6 +684,9 @@
#elif defined(__FreeBSD__) && defined(__LP64__)
ctx->uc_mcontext.mc_rip -= 1;
addr = ctx->uc_mcontext.mc_rip;
+#elif defined(__HAIKU__) && defined(__x86_64__)
+ ctx->uc_mcontext.rip -= 1;
+ addr = ctx->uc_mcontext.rip;
#else
#error "Unsupported platform"
#endif
diff --git a/utils/afl_untracer/libtestinstr.c b/utils/afl_untracer/libtestinstr.c
index b7afc32..0a98778 100644
--- a/utils/afl_untracer/libtestinstr.c
+++ b/utils/afl_untracer/libtestinstr.c
@@ -3,7 +3,7 @@
--------------------------------------------------------
Originally written by Michal Zalewski
Copyright 2014 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
diff --git a/utils/aflpp_driver/aflpp_driver.c b/utils/aflpp_driver/aflpp_driver.c
index 4e8f466..9ffb238 100644
--- a/utils/aflpp_driver/aflpp_driver.c
+++ b/utils/aflpp_driver/aflpp_driver.c
@@ -279,7 +279,9 @@
*/
- if (argc < 2 || strncmp(argv[1], "-h", 2) == 0)
+ if (argc < 2 || strncmp(argv[1], "-h", 2) == 0 ||
+ strcmp(argv[1], "--help") == 0) {
+
printf(
"============================== INFO ================================\n"
"This binary is built for afl++.\n"
@@ -290,12 +292,21 @@
"afl-fuzz will run N iterations before re-spawning the process "
"(default: "
"INT_MAX)\n"
+ "You can also use AFL_FUZZER_LOOPCOUNT to set N\n"
"For stdin input processing, pass '-' as single command line option.\n"
"For file input processing, pass '@@' as single command line option.\n"
"To use with afl-cmin or afl-cmin.bash pass '-' as single command line "
"option\n"
"===================================================================\n",
argv[0], argv[0]);
+ if (argc == 2 &&
+ (strncmp(argv[1], "-h", 2) == 0 || strcmp(argv[1], "--help") == 0)) {
+
+ exit(0);
+
+ }
+
+ }
return LLVMFuzzerRunDriver(&argc, &argv, LLVMFuzzerTestOneInput);
@@ -369,6 +380,12 @@
}
+ if (getenv("AFL_FUZZER_LOOPCOUNT")) {
+
+ N = atoi(getenv("AFL_FUZZER_LOOPCOUNT"));
+
+ }
+
assert(N > 0);
__afl_manual_init();
diff --git a/utils/argv_fuzzing/Makefile b/utils/argv_fuzzing/Makefile
index 6786467..ba977e5 100644
--- a/utils/argv_fuzzing/Makefile
+++ b/utils/argv_fuzzing/Makefile
@@ -2,7 +2,7 @@
# american fuzzy lop++ - argvfuzz
# --------------------------------
#
-# Copyright 2019-2023 Kjell Braden <afflux@pentabarf.de>
+# Copyright 2019-2024 Kjell Braden <afflux@pentabarf.de>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
diff --git a/utils/argv_fuzzing/argvfuzz.c b/utils/argv_fuzzing/argvfuzz.c
index 41eead0..4738313 100644
--- a/utils/argv_fuzzing/argvfuzz.c
+++ b/utils/argv_fuzzing/argvfuzz.c
@@ -2,7 +2,7 @@
american fuzzy lop++ - LD_PRELOAD for fuzzing argv in binaries
------------------------------------------------------------
- Copyright 2019-2023 Kjell Braden <afflux@pentabarf.de>
+ Copyright 2019-2024 Kjell Braden <afflux@pentabarf.de>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/utils/distributed_fuzzing/sync_script.sh b/utils/distributed_fuzzing/sync_script.sh
index b22816f..861b65c 100755
--- a/utils/distributed_fuzzing/sync_script.sh
+++ b/utils/distributed_fuzzing/sync_script.sh
@@ -6,7 +6,7 @@
# Originally written by Michal Zalewski
#
# Copyright 2014 Google Inc. All rights reserved.
-# Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+# Copyright 2019-2024 AFLplusplus Project. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
diff --git a/utils/dynamic_covfilter/README.md b/utils/dynamic_covfilter/README.md
new file mode 100644
index 0000000..381e085
--- /dev/null
+++ b/utils/dynamic_covfilter/README.md
@@ -0,0 +1,60 @@
+# Dynamic Instrumentation Filter
+
+Sometimes it can be beneficial to limit the instrumentation feedback to
+specific code locations. It is possible to do so at compile-time by simply
+not instrumenting any undesired locations. However, there are situations
+where doing this dynamically without requiring a new build can be beneficial.
+Especially when dealing with larger builds, it is much more convenient to
+select the target code locations at runtime instead of doing so at build time.
+
+There are two ways of doing this in AFL++. Both approaches require a build of
+AFL++ with `CODE_COVERAGE=1`, so make sure to build AFL++ first by invoking
+
+`CODE_COVERAGE=1 make`
+
+Once you have built AFL++, you can choose out of two approaches:
+
+## Simple Selection with `AFL_PC_FILTER`
+
+This approach requires a build with `AFL_INSTRUMENTATION=llvmnative` or
+`llvmcodecov` as well as an AddressSanitizer build with debug information.
+
+By setting the environment variable `AFL_PC_FILTER` to a string, the runtime
+symbolizer is enabled in the AFL++ runtime. At startup, the runtime will call
+the `__sanitizer_symbolize_pc` API to resolve every PC in every loaded module.
+The runtime then matches the result using `strstr` and disables the PC guard
+if the symbolized PC does not contain the specified string.
+
+This approach has the benefit of being very easy to use. The downside is that
+it causes significant startup delays with large binaries and that it requires
+an AddressSanitizer build.
+
+This method has no additional runtime overhead after startup.
+
+## Selection using pre-symbolized data file with `AFL_PC_FILTER_FILE`
+
+To avoid large startup time delays, a specific module can be pre-symbolized
+using the `make_symbol_list.py` script. This script outputs a sorted list of
+functions with their respective relative offsets and lengths in the target
+binary:
+
+`python3 make_symbol_list.py libxul.so > libxul.symbols.txt`
+
+The resulting list can be filtered, e.g. using grep:
+
+`grep -i "webgl" libxul.symbols.txt > libxul.webgl.symbols.txt`
+
+Finally, you can run with `AFL_PC_FILTER_FILE=libxul.webgl.symbols.txt` to
+restrict instrumentation feedback to the given locations. This approach only
+has a minimal startup time delay due to the implementation only using binary
+search on the given file per PC rather than reading debug information for every
+PC. It also works well with Nyx, where symbolizing is usually disabled for the
+target process to avoid delays with frequent crashes.
+
+Similar to the previous method, This approach requires a build with
+`AFL_INSTRUMENTATION=llvmnative` or `llvmcodecov` as well debug information.
+However, it does not require the ASan runtime as it doesn't do the symbolizing
+in process. Due to the way it maps PCs to symbols, it is less accurate when it
+comes to includes and inlines (it assumes all PCs within a function belong to
+that function and originate from the same file). For most purposes, this should
+be a reasonable simplification to quickly process even the largest binaries.
diff --git a/utils/dynamic_covfilter/make_symbol_list.py b/utils/dynamic_covfilter/make_symbol_list.py
new file mode 100644
index 0000000..d1dd6ab
--- /dev/null
+++ b/utils/dynamic_covfilter/make_symbol_list.py
@@ -0,0 +1,73 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# Written by Christian Holler <decoder at mozilla dot com>
+
+import json
+import os
+import sys
+import subprocess
+
+if len(sys.argv) != 2:
+ print("Usage: %s binfile" % os.path.basename(sys.argv[0]))
+ sys.exit(1)
+
+binfile = sys.argv[1]
+
+addr2len = {}
+addrs = []
+
+output = subprocess.check_output(["objdump", "-t", binfile]).decode("utf-8")
+for line in output.splitlines():
+ line = line.replace("\t", " ")
+ components = [x for x in line.split(" ") if x]
+ if not components:
+ continue
+ try:
+ start_addr = int(components[0], 16)
+ except ValueError:
+ continue
+
+ # Length has variable position in objdump output
+ length = None
+ for comp in components[1:]:
+ if len(comp) == 16:
+ try:
+ length = int(comp, 16)
+ break
+ except:
+ continue
+
+ if length is None:
+ print("ERROR: Couldn't determine function section length: %s" % line)
+
+ func = components[-1]
+
+ addrs.append(start_addr)
+ addr2len[str(hex(start_addr))] = str(length)
+
+# The search implementation in the AFL runtime expects everything sorted.
+addrs.sort()
+addrs = [str(hex(addr)) for addr in addrs]
+
+# We symbolize in one go to speed things up with large binaries.
+output = subprocess.check_output([
+ "llvm-addr2line",
+ "--output-style=JSON",
+ "-f", "-C", "-a", "-e",
+ binfile],
+ input="\n".join(addrs).encode("utf-8")).decode("utf-8")
+
+output = output.strip().splitlines()
+for line in output:
+ output = json.loads(line)
+ if "Symbol" in output and output["Address"] in addr2len:
+ final_output = [
+ output["Address"],
+ addr2len[output["Address"]],
+ os.path.basename(output["ModuleName"]),
+ output["Symbol"][0]["FileName"],
+ output["Symbol"][0]["FunctionName"]
+ ]
+ print("\t".join(final_output))
diff --git a/utils/libdislocator/libdislocator.so.c b/utils/libdislocator/libdislocator.so.c
index 1cd7abc..b80be1a 100644
--- a/utils/libdislocator/libdislocator.so.c
+++ b/utils/libdislocator/libdislocator.so.c
@@ -6,7 +6,7 @@
Originally written by Michal Zalewski
Copyright 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
diff --git a/utils/libtokencap/libtokencap.so.c b/utils/libtokencap/libtokencap.so.c
index b21f306..cc49915 100644
--- a/utils/libtokencap/libtokencap.so.c
+++ b/utils/libtokencap/libtokencap.so.c
@@ -6,7 +6,7 @@
Originally written by Michal Zalewski
Copyright 2016 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -55,7 +55,7 @@
#elif defined __HAIKU__
#include <kernel/image.h>
#elif defined __sun
- /* For map addresses the old struct is enough */
+/* For map addresses the old struct is enough */
#include <sys/procfs.h>
#include <limits.h>
#endif
@@ -168,7 +168,7 @@
#elif defined __FreeBSD__ || defined __OpenBSD__ || defined __NetBSD__
#if defined __FreeBSD__
- int mib[] = {CTL_KERN, KERN_PROC, KERN_PROC_VMMAP, __tokencap_pid};
+ int mib[] = {CTL_KERN, KERN_PROC, KERN_PROC_VMMAP, __tokencap_pid};
#elif defined __OpenBSD__
int mib[] = {CTL_KERN, KERN_PROC_VMMAP, __tokencap_pid};
#elif defined __NetBSD__
@@ -209,7 +209,7 @@
#if defined __FreeBSD__ || defined __NetBSD__
#if defined __FreeBSD__
- size_t size = region->kve_structsize;
+ size_t size = region->kve_structsize;
if (size == 0) break;
#elif defined __NetBSD__
diff --git a/utils/persistent_mode/test-instr.c b/utils/persistent_mode/test-instr.c
index 4ead657..72e26e9 100644
--- a/utils/persistent_mode/test-instr.c
+++ b/utils/persistent_mode/test-instr.c
@@ -3,7 +3,7 @@
--------------------------------------------------------
Originally written by Michal Zalewski
Copyright 2014 Google Inc. All rights reserved.
- Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+ Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
diff --git a/utils/qbdi_mode/build.sh b/utils/qbdi_mode/build.sh
index 29fe0ee..a92d81b 100755
--- a/utils/qbdi_mode/build.sh
+++ b/utils/qbdi_mode/build.sh
@@ -52,6 +52,6 @@
echo "[+] Building afl-fuzz for Android"
# build afl-fuzz
cd ../..
-${compiler_prefix}${CC} -DANDROID_DISABLE_FANCY=1 -O3 -funroll-loops -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign -I include/ -DAFL_PATH=\"/usr/local/lib/afl\" -DBIN_PATH=\"/usr/local/bin\" -DDOC_PATH=\"/usr/local/share/doc/afl\" -Wno-unused-function src/afl-fuzz*.c src/afl-common.c src/afl-sharedmem.c src/afl-forkserver.c src/afl-performance.c -o utils/qbdi_mode/afl-fuzz -ldl -lm -w
+${compiler_prefix}${CC} -O3 -funroll-loops -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign -I include/ -DAFL_PATH=\"/usr/local/lib/afl\" -DBIN_PATH=\"/usr/local/bin\" -DDOC_PATH=\"/usr/local/share/doc/afl\" -Wno-unused-function src/afl-fuzz*.c src/afl-common.c src/afl-sharedmem.c src/afl-forkserver.c src/afl-performance.c -o utils/qbdi_mode/afl-fuzz -ldl -lm -w
echo "[+] All done. Enjoy!"
