third_party/boringssl/Android.bp

// Copyright (C) 2023 The Android Open Source Project
//
// 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
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Cronet handles all of its licenses declaration in the top level Android.bp and
// LICENSE files (//external/cronet/Android.bp and //external/cronet/LICENSE).
// Boringsll's license can also be found at
// //external/cronet/third_party/boringssl/src/LICENSE.

// Guard with a namespace not to clash with //external/boringssl's targets.
// All targets, with the exception of :cronet_defaults, have been copied from
// //external/boringssl/Android.bp with just some minor changes due to the smaller
// scope of Cronet's Boringssl.
soong_namespace {}

package {
    default_visibility: [
        "//external/cronet:__subpackages__",
        "//packages/modules/Connectivity/Tethering:__subpackages__",
    ],
    // See: http://go/android-license-faq
    // A large-scale-change added 'default_applicable_licenses' to import
    // all of the 'license_kinds' from "external_cronet_license"
    // to get the below license kinds:
    //   legacy_unencumbered
    //   SPDX-license-identifier-Apache-2.0
    //   SPDX-license-identifier-BSD
    //   SPDX-license-identifier-BSD-3-Clause
    //   SPDX-license-identifier-ISC
    //   SPDX-license-identifier-MIT
    //   SPDX-license-identifier-OpenSSL
    default_applicable_licenses: ["external_cronet_license"],
}

build = ["sources.bp"]

cc_defaults {
    name: "cronet_defaults",
    stl: "none",
    apex_available: [
        "com.android.tethering",
    ],
    min_sdk_version: "30",
    include_dirs: [
        "external/cronet/buildtools/third_party/libc++/",
        "external/cronet/third_party/libc++/src/include",
        "external/cronet/third_party/libc++abi/src/include",
    ],
    static_libs: [
        "cronet_aml_buildtools_third_party_libc___libc__",
        "cronet_aml_buildtools_third_party_libc__abi_libc__abi"
    ],
}

cc_defaults {
    name: "boringssl_flags",
    cflags: [
        "-fvisibility=hidden",
        "-DBORINGSSL_SHARED_LIBRARY",
        "-DBORINGSSL_ANDROID_SYSTEM",
        // Chromium uses extensive harderning mode, so setting the same for boringssl.
        "-D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE",
        "-DOPENSSL_SMALL",
        "-Werror",
        "-Wno-unused-parameter",
    ],
    cppflags: [
        "-Wall",
        "-Werror",
    ],
}

cc_defaults {
    name: "boringssl_defaults",
    local_include_dirs: ["src/include"],
    export_include_dirs: ["src/include"],
    cflags: [
        "-DBORINGSSL_IMPLEMENTATION",
    ],
}

cc_defaults {
    name: "libcrypto_defaults",
    target: {
        android: {
            // On FIPS builds (i.e. Android only) prevent other libraries
            // from pre-empting symbols in libcrypto which could affect FIPS
            // compliance and cause integrity checks to fail. See b/160231064.
            ldflags: ["-Wl,-Bsymbolic"],
        },
    },
    local_include_dirs: ["src/crypto"],
}

cc_object {
    name: "bcm_object",
    defaults: [
        "boringssl_defaults",
        "boringssl_flags",
        "cronet_defaults",
        "libcrypto_bcm_sources",
        "libcrypto_defaults",
    ],
    sanitize: {
        address: false,
        hwaddress: false,
        // This is a placeholder
        // to help prevent
        // merge conflicts.
        memtag_stack: false,
        // This is a placeholder
        // to help prevent
        // merge conflicts.
        fuzzer: false,
        memtag_globals: false,
    },
    target: {
        android: {
            cflags: [
                "-DBORINGSSL_FIPS",
                "-fPIC",
                // -fno[data|text]-sections required to ensure a
                // single text and data section for FIPS integrity check
                "-fno-data-sections",
                "-fno-function-sections",
            ],
            linker_script: "src/crypto/fipsmodule/fips_shared.lds",
        },
        // From //external/boringssl: Temporary hack to let BoringSSL build with a new compiler.
        // This doesn't enable HWASAN unconditionally, it just causes
        // BoringSSL's asm code to unconditionally use a HWASAN-compatible
        // global variable reference so that the non-HWASANified (because of
        // sanitize: { hwaddress: false } above) code in the BCM can
        // successfully link against the HWASANified code in the rest of
        // BoringSSL in HWASAN builds.
        android_arm64: {
            asflags: [
                "-fsanitize=hwaddress",
            ],
        },
    },
}

// Version of bcm_object built with BORINGSSL_FIPS_BREAK_TESTS defined.
// Only for use with the FIPS break-tests.sh script.
// Must be kept in sync with bcm_object.
cc_object {
    name: "bcm_object_for_testing",
    visibility: ["//visibility:private"],
    defaults: [
        "boringssl_defaults",
        "boringssl_flags",
        "cronet_defaults",
        "libcrypto_bcm_sources",
        "libcrypto_defaults",
    ],
    sanitize: {
        address: false,
        hwaddress: false,
        fuzzer: false,
        memtag_globals: false,
    },
    target: {
        android: {
            cflags: [
                "-DBORINGSSL_FIPS",
                "-DBORINGSSL_FIPS_BREAK_TESTS",
                "-fPIC",
                // -fno[data|text]-sections required to ensure a
                // single text and data section for FIPS integrity check
                "-fno-data-sections",
                "-fno-function-sections",
            ],
            linker_script: "src/crypto/fipsmodule/fips_shared.lds",
        },
        // From //external/boringssl: Temporary hack to let BoringSSL build with a new compiler.
        // This doesn't enable HWASAN unconditionally, it just causes
        // BoringSSL's asm code to unconditionally use a HWASAN-compatible
        // global variable reference so that the non-HWASANified (because of
        // sanitize: { hwaddress: false } above) code in the BCM can
        // successfully link against the HWASANified code in the rest of
        // BoringSSL in HWASAN builds.
        android_arm64: {
            asflags: [
                "-fsanitize=hwaddress",
            ],
        },
    },
}

cc_library_shared {
    name: "libcrypto",
    defaults: [
        "boringssl_defaults",
        "boringssl_flags",
        "cronet_defaults",
        "libcrypto_defaults",
        "libcrypto_sources",
    ],
    unique_host_soname: true,
    srcs: [
        ":bcm_object",
    ],
    target: {
        android: {
            cflags: [
                "-DBORINGSSL_FIPS",
            ],
            sanitize: {
                // Disable address sanitizing otherwise libcrypto will not report
                // itself as being in FIPS mode, which causes boringssl_self_test
                // to fail.
                address: false,
            },
            inject_bssl_hash: true,
        },
    },
}

cc_library_shared {
    name: "libcrypto_for_testing",
    visibility: ["//visibility:private"],
    defaults: [
        "boringssl_defaults",
        "boringssl_flags",
        "cronet_defaults",
        "libcrypto_defaults",
        "libcrypto_sources",
    ],
    unique_host_soname: true,
    srcs: [
        ":bcm_object_for_testing",
    ],
    target: {
        android: {
            cflags: [
                "-DBORINGSSL_FIPS",
                "-DBORINGSSL_FIPS_BREAK_TESTS",
            ],
            sanitize: {
                // Disable address sanitizing otherwise libcrypto will not report
                // itself as being in FIPS mode, which causes boringssl_self_test
                // to fail.
                address: false,
            },
            inject_bssl_hash: true,
        },
    },
}

cc_library_shared {
    name: "libssl",
    defaults: [
        "boringssl_defaults",
        "boringssl_flags",
        "cronet_defaults",
        "libssl_sources",
    ],
    unique_host_soname: true,
    shared_libs: ["libcrypto"],
}

cc_library_shared {
    name: "libpki",
    defaults: [
        "boringssl_defaults",
        "boringssl_flags",
        "cronet_defaults",
        "libpki_sources",
    ],
    unique_host_soname: true,
    cflags: ["-D_BORINGSSL_LIBPKI_"],
    shared_libs: ["libcrypto"],
}

// Utility binary for CMVP on-site testing.
cc_binary {
    name: "test_fips",
    host_supported: false,
    defaults: [
        "boringssl_flags",
    ],
    shared_libs: [
        "libcrypto",
    ],
    srcs: [
        "src/util/fipstools/test_fips.c",
    ],
    required: [
        "adb",
        "libcrypto_for_testing",
    ],
}