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Fix Windows ZLUDA injector (#26)

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Fix various bugs in injector and redirector, make them more robust and enable building them by default
This commit is contained in:
Andrzej Janik 2021-01-03 18:45:48 +01:00 committed by GitHub
parent 659b2c6ec4
commit 2c0e9b912f
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16 changed files with 1893 additions and 138 deletions
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5
Cargo.toml
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@ -1,12 +1,13 @@
[workspace]
members = [
"detours-sys",
"level_zero-sys",
"level_zero",
"spirv_tools-sys",
"zluda",
#"zluda_inject",
#"zluda_redirect",
"zluda_inject",
"zluda_redirect",
"ptx",
]

39
detours-sys/Cargo.toml Normal file
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@ -0,0 +1,39 @@
[package]
name = "detours-sys"
version = "0.1.2"
authors = ["Diana <5275194+DianaNites@users.noreply.github.com>"]
edition = "2018"
links = "detours"
# Package stuff
description = "Rust bindings to Microsoft Detours"
documentation = "https://github.com/microsoft/Detours/wiki/Reference"
homepage = "https://github.com/DianaNites/detours"
repository = "https://github.com/DianaNites/detours"
readme = "README.md"
keywords = [
"detours",
"hooking",
"injection",
]
categories = [
"external-ffi-bindings",
"os::windows-apis",
]
license = "MIT OR Apache-2.0"
exclude = [
"/.vscode/**"
]
[badges]
maintenance = { status = "as-is" }
[dev-dependencies.winapi]
version = "0.3"
features = [
"synchapi",
"processthreadsapi",
"sysinfoapi",
]
[build-dependencies]
cc = "1.0"

202
detours-sys/LICENSE-APACHE Normal file
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@ -0,0 +1,202 @@
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7
detours-sys/LICENSE-MIT Normal file
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@ -0,0 +1,7 @@
Copyright 2019 Diana
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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34
detours-sys/README.md Normal file
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@ -0,0 +1,34 @@
# Detours-sys
[![Crates.io](https://img.shields.io/crates/v/detours-sys.svg)](https://crates.io/crates/detours-sys)
![maintenance-as-is](https://img.shields.io/badge/maintenance-as--is-yellow.svg)
Rust bindings to [Microsoft Detours](https://github.com/Microsoft/Detours)
## Usage
See the [Detours Documentation](https://github.com/Microsoft/Detours/wiki) for details.
## Details
Use the `buildtime_generation` feature to generate bindings at build time,
otherwise use pregenerated bindings.
Note that this will require a relatively recent version of Clang be installed.
## License
Licensed under either of
* Apache License, Version 2.0
([LICENSE-APACHE](LICENSE-APACHE) or <http://www.apache.org/licenses/LICENSE-2.0>)
* MIT license
([LICENSE-MIT](LICENSE-MIT) or <http://opensource.org/licenses/MIT>)
at your option.
## Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.

54
detours-sys/build.rs Normal file
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@ -0,0 +1,54 @@
use std::error::Error;
#[cfg(not(target_os = "windows"))]
fn main() {}
#[cfg(target_os = "windows")]
fn main() -> Result<(), Box<dyn Error>> {
windows::main_impl()
}
#[cfg(target_os = "windows")]
mod windows {
use std::error::Error;
const CPP_FILES: [&'static str; 5] = [
"../ext/detours/src/creatwth.cpp",
"../ext/detours/src/detours.cpp",
"../ext/detours/src/disasm.cpp",
"../ext/detours/src/image.cpp",
"../ext/detours/src/modules.cpp",
];
pub fn main_impl() -> Result<(), Box<dyn Error>> {
println!("cargo:rerun-if-changed=build/wrapper.h");
for f in &CPP_FILES {
println!("cargo:rerun-if-changed={}", f);
}
build_detours()
}
fn build_detours() -> Result<(), Box<dyn Error>> {
add_target_options(
cc::Build::new()
.include("../ext/detours/src")
.files(&CPP_FILES),
)
.try_compile("detours")?;
Ok(())
}
#[cfg(target_env = "msvc")]
fn add_target_options(build: &mut cc::Build) -> &mut cc::Build {
build
}
#[cfg(not(target_env = "msvc"))]
fn add_target_options(build: &mut cc::Build) -> &mut cc::Build {
build
.compiler("clang")
.cpp(true)
.flag("-fms-extensions")
.flag("-Wno-everything")
}
}

2
detours-sys/build/wrapper.h Normal file
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@ -0,0 +1,2 @@
#include <windows.h>
#include <detours.h>

1099
detours-sys/src/bundled_bindings.rs Normal file
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78
detours-sys/src/lib.rs Normal file
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@ -0,0 +1,78 @@
#![cfg(target_os = "windows")]
//! Bindings to the Microsoft Detours API.
#![allow(non_camel_case_types)]
#![allow(non_snake_case)]
// Rebuild with:
// bindgen ..\build\wrapper.h --whitelist-function "Detour.*" -o bundled_bindings.rs -- "-fms-compatibility" "-fms-extensions" --target=x86_64-pc-windows-msvc -I ..\..\ext\detours\src\
include!("bundled_bindings.rs");
#[cfg(test)]
mod tests {
use super::*;
use std::{ffi, ptr};
use winapi::{
shared::minwindef::LPVOID,
um::{processthreadsapi::GetCurrentThread, synchapi::Sleep, sysinfoapi::GetTickCount},
};
static mut TRUE_SLEEP: unsafe extern "system" fn(DWORD) = Sleep;
static mut SLEPT: LONG = 0;
// Detour function that replaces the Sleep API.
unsafe extern "system" fn TimedSleep(dwMilliseconds: DWORD) {
// Save the before and after times around calling the Sleep API.
let dwBeg: DWORD = GetTickCount();
TRUE_SLEEP(dwMilliseconds);
let dwEnd: DWORD = GetTickCount();
SLEPT = (dwEnd - dwBeg) as i32;
}
extern "system" fn DllMain(_: HINSTANCE, reason: DWORD, _: LPVOID) -> BOOL {
if unsafe { DetourIsHelperProcess() } == 1 {
return 1;
}
let tru = unsafe { &mut TRUE_SLEEP as *mut _ as *mut *mut ffi::c_void };
let new = TimedSleep as *mut ffi::c_void;
match reason {
// DLL_PROCESS_ATTACH
1 => unsafe {
DetourRestoreAfterWith();
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread() as _);
DetourAttach(tru, new);
DetourTransactionCommit();
},
// DLL_PROCESS_DETACH
0 => unsafe {
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread() as _);
DetourDetach(tru, new);
DetourTransactionCommit();
},
_ => (),
}
1
}
#[test]
fn hook_self() {
unsafe {
DllMain(ptr::null_mut(), 1, ptr::null_mut());
let slept;
Sleep(500);
slept = SLEPT;
assert_ne!(SLEPT, 0);
DllMain(ptr::null_mut(), 0, ptr::null_mut());
Sleep(500);
assert_eq!(slept, SLEPT);
}
}
}

7
zluda_inject/Cargo.toml
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@ -9,8 +9,5 @@ name = "zluda"
path = "src/main.rs"
[target.'cfg(windows)'.dependencies]
zluda_redirect = { path = "../zluda_redirect" }
winapi = { version = "0.3", features = ["processthreadsapi", "std", "synchapi"] }
detours-sys = "0.1"
clap = "2.33"
guid = "0.1"
winapi = { version = "0.3", features = ["jobapi2", "processthreadsapi", "std", "synchapi"] }
detours-sys = { path = "../detours-sys" }

199
zluda_inject/src/bin.rs
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@ -1,58 +1,39 @@
extern crate clap;
#[macro_use]
extern crate guid;
extern crate detours_sys;
extern crate winapi;
use std::error::Error;
use std::ffi::OsStr;
use std::env;
use std::env::Args;
use std::mem;
use std::os::windows::ffi::OsStrExt;
use std::path::Path;
use std::ptr;
use std::{error::Error, process};
use mem::size_of_val;
use winapi::um::{
jobapi2::{AssignProcessToJobObject, SetInformationJobObject},
processthreadsapi::{GetExitCodeProcess, ResumeThread},
synchapi::WaitForSingleObject,
winbase::CreateJobObjectA,
winnt::{
JobObjectExtendedLimitInformation, HANDLE, JOBOBJECT_EXTENDED_LIMIT_INFORMATION,
JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE,
},
};
use winapi::um::processthreadsapi::{GetExitCodeProcess, ResumeThread};
use winapi::um::synchapi::WaitForSingleObject;
use winapi::um::winbase::{INFINITE, WAIT_FAILED};
use clap::{App, AppSettings, Arg};
static REDIRECT_DLL: &'static str = "zluda_redirect.dll";
static ZLUDA_DLL: &'static str = "nvcuda.dll";
#[macro_use]
mod win;
include!("../../zluda_redirect/src/payload_guid.rs");
fn main() -> Result<(), Box<dyn Error>> {
let matches = App::new("ZLUDA injector")
.setting(AppSettings::TrailingVarArg)
.arg(
Arg::with_name("EXE")
.help("Path to the executable to be injected with ZLUDA")
.required(true),
)
.arg(
Arg::with_name("ARGS")
.multiple(true)
.help("Arguments that will be passed to <EXE>"),
)
.get_matches();
let exe = matches.value_of_os("EXE").unwrap();
let args: Vec<&OsStr> = matches
.values_of_os("ARGS")
.map(|x| x.collect())
.unwrap_or_else(|| Vec::new());
let mut cmd_line = Vec::<u16>::with_capacity(exe.len() + 2);
cmd_line.push('\"' as u16);
copy_to(exe, &mut cmd_line);
cmd_line.push('\"' as u16);
cmd_line.push(' ' as u16);
args.split_last().map(|(last_arg, args)| {
for arg in args {
cmd_line.reserve(arg.len());
copy_to(arg, &mut cmd_line);
cmd_line.push(' ' as u16);
}
copy_to(last_arg, &mut cmd_line);
});
cmd_line.push(0);
pub fn main_impl() -> Result<(), Box<dyn Error>> {
let args = env::args();
if args.len() == 0 {
print_help();
process::exit(1);
}
let mut cmd_line = construct_command_line(args);
let injector_path = env::current_exe()?;
let injector_dir = injector_path.parent().unwrap();
let redirect_path = create_redirect_path(injector_dir);
let mut startup_info = unsafe { mem::zeroed::<detours_sys::_STARTUPINFOW>() };
let mut proc_info = unsafe { mem::zeroed::<detours_sys::_PROCESS_INFORMATION>() };
os_call!(
@ -67,22 +48,19 @@ fn main() -> Result<(), Box<dyn Error>> {
ptr::null(),
&mut startup_info as *mut _,
&mut proc_info as *mut _,
"zluda_redirect.dll\0".as_ptr() as *const i8,
redirect_path.as_ptr() as *const i8,
Option::None
),
|x| x != 0
);
let mut exe_path = std::env::current_dir()?
.as_os_str()
.encode_wide()
.collect::<Vec<_>>();
let guid = guid! {"C225FC0C-00D7-40B8-935A-7E342A9344C1"};
kill_child_on_process_exit(proc_info.hProcess)?;
let mut zluda_path = create_zluda_path(injector_dir);
os_call!(
detours_sys::DetourCopyPayloadToProcess(
proc_info.hProcess,
mem::transmute(&guid),
exe_path.as_mut_ptr() as *mut _,
(exe_path.len() * mem::size_of::<u16>()) as u32
&PAYLOAD_GUID,
zluda_path.as_mut_ptr() as *mut _,
(zluda_path.len() * mem::size_of::<u16>()) as u32
),
|x| x != 0
);
@ -94,13 +72,110 @@ fn main() -> Result<(), Box<dyn Error>> {
GetExitCodeProcess(proc_info.hProcess, &mut child_exit_code as *mut _),
|x| x != 0
);
std::process::exit(child_exit_code as i32)
process::exit(child_exit_code as i32)
}
fn copy_to(from: &OsStr, to: &mut Vec<u16>) {
for x in from.encode_wide() {
to.push(x);
fn kill_child_on_process_exit(child: HANDLE) -> Result<(), Box<dyn Error>> {
let job_handle = os_call!(CreateJobObjectA(ptr::null_mut(), ptr::null()), |x| x
!= ptr::null_mut());
let mut info = unsafe { mem::zeroed::<JOBOBJECT_EXTENDED_LIMIT_INFORMATION>() };
info.BasicLimitInformation.LimitFlags = JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE;
os_call!(
SetInformationJobObject(
job_handle,
JobObjectExtendedLimitInformation,
&mut info as *mut _ as *mut _,
size_of_val(&info) as u32
),
|x| x != 0
);
os_call!(AssignProcessToJobObject(job_handle, child), |x| x != 0);
Ok(())
}
fn print_help() {
println!(
"USAGE:
zluda <EXE> [ARGS]...
ARGS:
<EXE> Path to the executable to be injected with ZLUDA
<ARGS>... Arguments that will be passed to <EXE>
"
);
}
// Adapted from https://docs.microsoft.com/en-us/archive/blogs/twistylittlepassagesallalike/everyone-quotes-command-line-arguments-the-wrong-way
fn construct_command_line(args: Args) -> Vec<u16> {
let mut cmd_line = Vec::new();
let args_len = args.len();
for (idx, arg) in args.enumerate().skip(1) {
if !arg.contains(&[' ', '\t', '\n', '\u{2B7F}', '\"'][..]) {
cmd_line.extend(arg.encode_utf16());
} else {
cmd_line.push('"' as u16); // "
let mut char_iter = arg.chars().peekable();
loop {
let mut current = char_iter.next();
let mut backslashes = 0;
match current {
Some('\\') => {
backslashes = 1;
while let Some('\\') = char_iter.peek() {
backslashes += 1;
char_iter.next();
}
current = char_iter.next();
}
_ => {}
}
match current {
None => {
for _ in 0..(backslashes * 2) {
cmd_line.push('\\' as u16);
}
break;
}
Some('"') => {
for _ in 0..(backslashes * 2 + 1) {
cmd_line.push('\\' as u16);
}
cmd_line.push('"' as u16);
}
Some(c) => {
for _ in 0..backslashes {
cmd_line.push('\\' as u16);
}
let mut temp = [0u16; 2];
cmd_line.extend(&*c.encode_utf16(&mut temp));
}
}
}
cmd_line.push('"' as u16);
}
if idx < args_len - 1 {
cmd_line.push(' ' as u16);
}
}
cmd_line.push(0);
cmd_line
}
//
fn create_redirect_path(injector_dir: &Path) -> Vec<u8> {
let mut injector_dir = injector_dir.to_path_buf();
injector_dir.push(REDIRECT_DLL);
let mut result = injector_dir.to_string_lossy().into_owned().into_bytes();
result.push(0);
result
}
fn create_zluda_path(injector_dir: &Path) -> Vec<u16> {
let mut injector_dir = injector_dir.to_path_buf();
injector_dir.push(ZLUDA_DLL);
let mut result = injector_dir
.to_string_lossy()
.as_ref()
.encode_utf16()
.collect::<Vec<_>>();
result.push(0);
result
}

20
zluda_inject/src/main.rs
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@ -1,5 +1,15 @@
#[cfg(target_os = "windows")]
mod bin;
#[cfg(not(target_os = "windows"))]
fn main() {}
#[macro_use]
#[cfg(target_os = "windows")]
mod win;
#[cfg(target_os = "windows")]
mod bin;
use std::error::Error;
#[cfg(target_os = "windows")]
fn main() -> Result<(), Box<dyn Error>> {
bin::main_impl()
}
#[cfg(not(target_os = "windows"))]
fn main() {}

21
zluda_inject/src/win.rs
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@ -48,15 +48,18 @@ macro_rules! last_ident {
macro_rules! os_call {
($($path:ident)::+ ($($args:expr),*), $success:expr) => {
let result = unsafe{ $($path)::+ ($($args),+) };
if !($success)(result) {
let name = last_ident!($($path),+);
let err_code = $crate::win::errno();
Err($crate::win::OsError{
function: name,
error_code: err_code as u32,
message: $crate::win::error_string(err_code)
})?;
{
let result = unsafe{ $($path)::+ ($($args),*) };
if !($success)(result) {
let name = last_ident!($($path),+);
let err_code = $crate::win::errno();
Err($crate::win::OsError{
function: name,
error_code: err_code as u32,
message: $crate::win::error_string(err_code)
})?;
}
result
}
};
}

3
zluda_redirect/Cargo.toml
View file

@ -8,7 +8,6 @@ edition = "2018"
crate-type = ["cdylib"]
[target.'cfg(windows)'.dependencies]
detours-sys = "0.1"
detours-sys = { path = "../detours-sys" }
wchar = "0.6"
guid = "0.1"
winapi = { version = "0.3", features = ["processthreadsapi", "winbase", "winnt", "winerror", "libloaderapi", "std"] }

255
zluda_redirect/src/lib.rs
View file

@ -1,105 +1,254 @@
#![cfg(windows)]
#![cfg(target_os = "windows")]
extern crate detours_sys;
#[macro_use]
extern crate guid;
extern crate winapi;
use std::mem;
use std::{mem, ptr, slice};
use detours_sys::{
DetourAttach, DetourDetach, DetourRestoreAfterWith, DetourTransactionBegin,
DetourTransactionCommit, DetourUpdateThread,
};
use wchar::{wch, wch_c};
use winapi::shared::minwindef::{DWORD, FALSE, HMODULE, TRUE};
use winapi::um::libloaderapi::LoadLibraryExW;
use wchar::wch;
use winapi::um::processthreadsapi::GetCurrentThread;
use winapi::um::winbase::lstrcmpiW;
use winapi::um::winnt::{DLL_PROCESS_ATTACH, DLL_PROCESS_DETACH, HANDLE, LPCWSTR};
use winapi::{
shared::minwindef::{DWORD, FALSE, HMODULE, TRUE},
um::{libloaderapi::LoadLibraryExA, winnt::LPCSTR},
};
use winapi::{
shared::winerror::NO_ERROR,
um::libloaderapi::{LoadLibraryA, LoadLibraryExW, LoadLibraryW},
};
const NVCUDA_PATH: &[u16] = wch_c!(r"C:\WINDOWS\system32\nvcuda.dll");
const ZLUDA_DLL: &[u16] = wch!(r"nvcuda.dll");
static mut ZLUDA_PATH: Option<Vec<u16>> = None;
include!("payload_guid.rs");
static mut LOAD_LIBRARY_EX: unsafe extern "system" fn(
const NVCUDA_UTF8: &'static str = "NVCUDA.DLL";
const NVCUDA_UTF16: &[u16] = wch!("NVCUDA.DLL");
static mut ZLUDA_PATH_UTF8: Vec<u8> = Vec::new();
static mut ZLUDA_PATH_UTF16: Option<&'static [u16]> = None;
static mut LOAD_LIBRARY_A: unsafe extern "system" fn(lpLibFileName: LPCSTR) -> HMODULE =
LoadLibraryA;
static mut LOAD_LIBRARY_W: unsafe extern "system" fn(lpLibFileName: LPCWSTR) -> HMODULE =
LoadLibraryW;
static mut LOAD_LIBRARY_EX_A: unsafe extern "system" fn(
lpLibFileName: LPCSTR,
hFile: HANDLE,
dwFlags: DWORD,
) -> HMODULE = LoadLibraryExA;
static mut LOAD_LIBRARY_EX_W: unsafe extern "system" fn(
lpLibFileName: LPCWSTR,
hFile: HANDLE,
dwFlags: DWORD,
) -> HMODULE = LoadLibraryExW;
#[allow(non_snake_case)]
#[no_mangle]
unsafe extern "system" fn ZludaLoadLibraryA(lpLibFileName: LPCSTR) -> HMODULE {
let nvcuda_file_name = if is_nvcuda_dll_utf8(lpLibFileName as *const _) {
ZLUDA_PATH_UTF8.as_ptr() as *const _
} else {
lpLibFileName
};
(LOAD_LIBRARY_A)(nvcuda_file_name)
}
#[allow(non_snake_case)]
unsafe extern "system" fn ZludaLoadLibraryW(lpLibFileName: LPCWSTR) -> HMODULE {
let nvcuda_file_name = if is_nvcuda_dll_utf16(lpLibFileName) {
ZLUDA_PATH_UTF16.unwrap().as_ptr()
} else {
lpLibFileName
};
(LOAD_LIBRARY_W)(nvcuda_file_name)
}
#[allow(non_snake_case)]
unsafe extern "system" fn ZludaLoadLibraryExA(
lpLibFileName: LPCSTR,
hFile: HANDLE,
dwFlags: DWORD,
) -> HMODULE {
let nvcuda_file_name = if is_nvcuda_dll_utf8(lpLibFileName as *const _) {
ZLUDA_PATH_UTF8.as_ptr() as *const _
} else {
lpLibFileName
};
(LOAD_LIBRARY_EX_A)(nvcuda_file_name, hFile, dwFlags)
}
#[allow(non_snake_case)]
unsafe extern "system" fn ZludaLoadLibraryExW(
lpLibFileName: LPCWSTR,
hFile: HANDLE,
dwFlags: DWORD,
) -> HMODULE {
let nvcuda_file_name = if lstrcmpiW(lpLibFileName, NVCUDA_PATH.as_ptr()) == 0 {
ZLUDA_PATH.as_ref().unwrap().as_ptr()
let nvcuda_file_name = if is_nvcuda_dll_utf16(lpLibFileName) {
ZLUDA_PATH_UTF16.unwrap().as_ptr()
} else {
lpLibFileName
};
(LOAD_LIBRARY_EX)(nvcuda_file_name, hFile, dwFlags)
(LOAD_LIBRARY_EX_W)(nvcuda_file_name, hFile, dwFlags)
}
fn is_nvcuda_dll_utf8(lib: *const u8) -> bool {
is_nvcuda_dll(lib, 0, NVCUDA_UTF8.as_bytes(), |c| {
if c >= 'a' as u8 && c <= 'z' as u8 {
c - 32
} else {
c
}
})
}
fn is_nvcuda_dll_utf16(lib: *const u16) -> bool {
is_nvcuda_dll(lib, 0u16, NVCUDA_UTF16, |c| {
if c >= 'a' as u16 && c <= 'z' as u16 {
c - 32
} else {
c
}
})
}
fn is_nvcuda_dll<T: Copy + PartialEq>(
lib: *const T,
zero: T,
dll_name: &[T],
uppercase: impl Fn(T) -> T,
) -> bool {
let mut len = 0;
loop {
if unsafe { *lib.offset(len) } == zero {
break;
}
len += 1;
}
if (len as usize) < dll_name.len() {
return false;
}
let slice =
unsafe { slice::from_raw_parts(lib.offset(len - dll_name.len() as isize), dll_name.len()) };
for i in 0..dll_name.len() {
if uppercase(slice[i]) != dll_name[i] {
return false;
}
}
true
}
#[allow(non_snake_case)]
#[no_mangle]
unsafe extern "system" fn DllMain(_: *const u8, dwReason: u32, _: *const u8) -> i32 {
if dwReason == DLL_PROCESS_ATTACH {
DetourRestoreAfterWith();
if DetourRestoreAfterWith() == FALSE {
return FALSE;
}
match get_zluda_dll_path() {
Some((path, len)) => set_zluda_dll_path(path, len),
Some(path) => {
ZLUDA_PATH_UTF16 = Some(path);
ZLUDA_PATH_UTF8 = String::from_utf16_lossy(path).into_bytes();
}
None => return FALSE,
}
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach(
std::mem::transmute(&mut LOAD_LIBRARY_EX),
if DetourTransactionBegin() != NO_ERROR as i32 {
return FALSE;
}
if DetourUpdateThread(GetCurrentThread()) != NO_ERROR as i32 {
return FALSE;
}
if DetourAttach(
mem::transmute(&mut LOAD_LIBRARY_A),
ZludaLoadLibraryA as *mut _,
) != NO_ERROR as i32
{
return FALSE;
}
if DetourAttach(
mem::transmute(&mut LOAD_LIBRARY_W),
ZludaLoadLibraryW as *mut _,
) != NO_ERROR as i32
{
return FALSE;
}
if DetourAttach(
mem::transmute(&mut LOAD_LIBRARY_EX_A),
ZludaLoadLibraryExA as *mut _,
) != NO_ERROR as i32
{
return FALSE;
}
if DetourAttach(
mem::transmute(&mut LOAD_LIBRARY_EX_W),
ZludaLoadLibraryExW as *mut _,
);
DetourTransactionCommit();
) != NO_ERROR as i32
{
return FALSE;
}
if DetourTransactionCommit() != NO_ERROR as i32 {
return FALSE;
}
} else if dwReason == DLL_PROCESS_DETACH {
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourDetach(
std::mem::transmute(&mut LOAD_LIBRARY_EX),
if DetourTransactionBegin() != NO_ERROR as i32 {
return FALSE;
}
if DetourUpdateThread(GetCurrentThread()) != NO_ERROR as i32 {
return FALSE;
}
if DetourDetach(
mem::transmute(&mut LOAD_LIBRARY_A),
ZludaLoadLibraryA as *mut _,
) != NO_ERROR as i32
{
return FALSE;
}
if DetourDetach(
mem::transmute(&mut LOAD_LIBRARY_W),
ZludaLoadLibraryW as *mut _,
) != NO_ERROR as i32
{
return FALSE;
}
if DetourDetach(
mem::transmute(&mut LOAD_LIBRARY_EX_A),
ZludaLoadLibraryExA as *mut _,
) != NO_ERROR as i32
{
return FALSE;
}
if DetourDetach(
mem::transmute(&mut LOAD_LIBRARY_EX_W),
ZludaLoadLibraryExW as *mut _,
);
DetourTransactionCommit();
) != NO_ERROR as i32
{
return FALSE;
}
if DetourTransactionCommit() != NO_ERROR as i32 {
return FALSE;
}
}
TRUE
}
fn get_zluda_dll_path() -> Option<(*const u16, usize)> {
let guid = guid! {"C225FC0C-00D7-40B8-935A-7E342A9344C1"};
let mut module = std::ptr::null_mut();
fn get_zluda_dll_path() -> Option<&'static [u16]> {
let mut module = ptr::null_mut();
loop {
module = unsafe { detours_sys::DetourEnumerateModules(module) };
if module == std::ptr::null_mut() {
if module == ptr::null_mut() {
break;
}
let mut size = 0;
let payload = unsafe {
detours_sys::DetourFindPayload(module, std::mem::transmute(&guid), &mut size)
};
if payload != std::ptr::null_mut() {
return Some((payload as *const _, (size as usize) / mem::size_of::<u16>()));
let payload = unsafe { detours_sys::DetourFindPayload(module, &PAYLOAD_GUID, &mut size) };
if payload != ptr::null_mut() {
return unsafe {
Some(slice::from_raw_parts(
payload as *const _,
(size as usize) / mem::size_of::<u16>(),
))
};
}
}
None
}
unsafe fn set_zluda_dll_path(path: *const u16, len: usize) {
let len = len as usize;
let mut result = Vec::<u16>::with_capacity(len + ZLUDA_DLL.len() + 2);
for i in 0..len {
result.push(*path.add(i));
}
result.push(0x5c); // \
for c in ZLUDA_DLL.iter().copied() {
result.push(c);
}
result.push(0);
ZLUDA_PATH = Some(result);
}

6
zluda_redirect/src/payload_guid.rs Normal file
View file

@ -0,0 +1,6 @@
const PAYLOAD_GUID: detours_sys::GUID = detours_sys::GUID {
Data1: 0xC225FC0C,
Data2: 0x00D7,
Data3: 0x40B8,
Data4: [0x93, 0x5A, 0x7E, 0x34, 0x2A, 0x93, 0x44, 0xC1],
};