blob: c93869793e56b69b28e4e1823309e45dfbc2088d [file] [log] [blame]
use core::ops::{Deref, DerefMut};
use core::{mem, slice};
use crate::flag::{EventFlags, MapFlags, PtraceFlags, SigActionFlags};
#[derive(Copy, Clone, Debug, Default)]
#[repr(C)]
pub struct Event {
pub id: usize,
pub flags: EventFlags,
pub data: usize
}
impl Deref for Event {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const Event as *const u8, mem::size_of::<Event>())
}
}
}
impl DerefMut for Event {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut Event as *mut u8, mem::size_of::<Event>())
}
}
}
#[derive(Copy, Clone, Debug, Default)]
#[repr(C)]
pub struct ITimerSpec {
pub it_interval: TimeSpec,
pub it_value: TimeSpec,
}
impl Deref for ITimerSpec {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const ITimerSpec as *const u8,
mem::size_of::<ITimerSpec>())
}
}
}
impl DerefMut for ITimerSpec {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut ITimerSpec as *mut u8,
mem::size_of::<ITimerSpec>())
}
}
}
#[derive(Copy, Clone, Debug, Default)]
#[repr(C)]
pub struct OldMap {
pub offset: usize,
pub size: usize,
pub flags: MapFlags,
}
impl Deref for OldMap {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const OldMap as *const u8, mem::size_of::<OldMap>())
}
}
}
impl DerefMut for OldMap {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut OldMap as *mut u8, mem::size_of::<OldMap>())
}
}
}
#[derive(Copy, Clone, Debug, Default)]
#[repr(C)]
pub struct Map {
/// The offset inside the file that is being mapped.
pub offset: usize,
/// The size of the memory map.
pub size: usize,
/// Contains both prot and map flags.
pub flags: MapFlags,
/// Functions as a hint to where in the virtual address space of the running process, to place
/// the memory map. If [`MapFlags::MAP_FIXED`] is set, then this address must be the address to
/// map to.
pub address: usize,
}
impl Deref for Map {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const Map as *const u8, mem::size_of::<Map>())
}
}
}
impl DerefMut for Map {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut Map as *mut u8, mem::size_of::<Map>())
}
}
}
#[derive(Copy, Clone, Debug, Default)]
#[repr(C)]
pub struct Packet {
pub id: u64,
pub pid: usize,
pub uid: u32,
pub gid: u32,
pub a: usize,
pub b: usize,
pub c: usize,
pub d: usize
}
impl Deref for Packet {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const Packet as *const u8, mem::size_of::<Packet>())
}
}
}
impl DerefMut for Packet {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut Packet as *mut u8, mem::size_of::<Packet>())
}
}
}
#[derive(Copy, Clone, Debug, Default, PartialEq)]
#[repr(C)]
pub struct SigAction {
pub sa_handler: Option<extern "C" fn(usize)>,
pub sa_mask: [u64; 2],
pub sa_flags: SigActionFlags,
}
impl Deref for SigAction {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const SigAction as *const u8,
mem::size_of::<SigAction>())
}
}
}
impl DerefMut for SigAction {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut SigAction as *mut u8,
mem::size_of::<SigAction>())
}
}
}
#[allow(dead_code)]
unsafe fn _assert_size_of_function_is_sane() {
// Transmuting will complain *at compile time* if sizes differ.
// Rust forbids a fn-pointer from being 0 so to allow SIG_DFL to
// exist, we use Option<extern "C" fn(usize)> which will mean 0
// becomes None
let _ = mem::transmute::<Option<extern "C" fn(usize)>, usize>(None);
}
#[derive(Copy, Clone, Debug, Default, PartialEq)]
#[repr(C)]
pub struct Stat {
pub st_dev: u64,
pub st_ino: u64,
pub st_mode: u16,
pub st_nlink: u32,
pub st_uid: u32,
pub st_gid: u32,
pub st_size: u64,
pub st_blksize: u32,
pub st_blocks: u64,
pub st_mtime: u64,
pub st_mtime_nsec: u32,
pub st_atime: u64,
pub st_atime_nsec: u32,
pub st_ctime: u64,
pub st_ctime_nsec: u32,
}
impl Deref for Stat {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const Stat as *const u8,
mem::size_of::<Stat>())
}
}
}
impl DerefMut for Stat {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut Stat as *mut u8,
mem::size_of::<Stat>())
}
}
}
#[derive(Copy, Clone, Debug, Default, PartialEq)]
#[repr(C)]
pub struct StatVfs {
pub f_bsize: u32,
pub f_blocks: u64,
pub f_bfree: u64,
pub f_bavail: u64,
}
impl Deref for StatVfs {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const StatVfs as *const u8,
mem::size_of::<StatVfs>())
}
}
}
impl DerefMut for StatVfs {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut StatVfs as *mut u8,
mem::size_of::<StatVfs>())
}
}
}
#[derive(Copy, Clone, Debug, Default, PartialEq)]
#[repr(C)]
pub struct TimeSpec {
pub tv_sec: i64,
pub tv_nsec: i32,
}
impl Deref for TimeSpec {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const TimeSpec as *const u8,
mem::size_of::<TimeSpec>())
}
}
}
impl DerefMut for TimeSpec {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut TimeSpec as *mut u8,
mem::size_of::<TimeSpec>())
}
}
}
#[derive(Clone, Copy, Debug, Default)]
#[repr(C)]
pub struct PtraceEvent {
pub cause: PtraceFlags,
pub a: usize,
pub b: usize,
pub c: usize,
pub d: usize,
pub e: usize,
pub f: usize
}
impl Deref for PtraceEvent {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const PtraceEvent as *const u8, mem::size_of::<PtraceEvent>())
}
}
}
impl DerefMut for PtraceEvent {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut PtraceEvent as *mut u8, mem::size_of::<PtraceEvent>())
}
}
}
#[macro_export]
macro_rules! ptrace_event {
($cause:expr $(, $a:expr $(, $b:expr $(, $c:expr)?)?)?) => {
$crate::data::PtraceEvent {
cause: $cause,
$(a: $a,
$(b: $b,
$(c: $c,)?
)?
)?
..Default::default()
}
}
}
bitflags::bitflags! {
#[derive(Default)]
pub struct GrantFlags: usize {
const GRANT_READ = 0x0000_0001;
const GRANT_WRITE = 0x0000_0002;
const GRANT_EXEC = 0x0000_0004;
const GRANT_SHARED = 0x0000_0008;
const GRANT_LAZY = 0x0000_0010;
const GRANT_SCHEME = 0x0000_0020;
const GRANT_PHYS = 0x0000_0040;
const GRANT_PINNED = 0x0000_0080;
}
}
#[derive(Clone, Copy, Debug, Default)]
#[repr(C)]
pub struct GrantDesc {
pub base: usize,
pub size: usize,
pub flags: GrantFlags,
pub offset: u64,
}
impl Deref for GrantDesc {
type Target = [u8];
fn deref(&self) -> &[u8] {
unsafe {
slice::from_raw_parts(self as *const GrantDesc as *const u8, mem::size_of::<GrantDesc>())
}
}
}
impl DerefMut for GrantDesc {
fn deref_mut(&mut self) -> &mut [u8] {
unsafe {
slice::from_raw_parts_mut(self as *mut GrantDesc as *mut u8, mem::size_of::<GrantDesc>())
}
}
}