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Add panic hook and update windows dependency to 0.53.0
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The panic hook is to show the panic payload with a message box.

Updating `windows` to 0.53.0 is to fix the build with
`i686-win7-msvc-windows` target, which provides binaries with Windows7
support. (microsoft/windows-rs#2774)
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@Hagb
Hagb committed Jun 26, 2024
1 parent 110b4c7 commit 03ac41e
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Showing 4 changed files with 92 additions and 117 deletions.
6 changes: 3 additions & 3 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -19,21 +19,21 @@ logrollback = []
lowframetest = ["dep:rand"]

[dependencies.windows]
version = "0.48"
version = "0.53.0"
features = [
"Win32_UI_Input_KeyboardAndMouse",
"Win32_System_Memory",
"Win32_Networking_WinSock",
"Win32_Foundation",
"Win32_UI_WindowsAndMessaging",
"Win32_System_Threading",
"Win32_System_Console",
"Win32_System_LibraryLoader"
]

[dependencies]
ilhook = { path = "ilhookmod" }
mininip = { path = "mininip" } #"1.3.1"
winapi = { version = "0.3.9", features = ["libloaderapi", "d3d9", "winuser"] }
winapi = { version = "0.3.9", features = ["d3d9"] }

fern = { version = "0.6.2", optional = true }
humantime = { version = "2.1.0", optional = true }
Expand Down
2 changes: 1 addition & 1 deletion ilhookmod/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,7 @@ codegen-units = 1


[target."cfg(windows)".dependencies.windows-sys]
version = "0.48.0"
version = "0.52.0"
features = [
"Win32_Foundation",
"Win32_System_Memory",
Expand Down
197 changes: 86 additions & 111 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,9 @@
#![feature(coroutines)]
#![feature(iter_from_coroutine)]
#![feature(anonymous_lifetime_in_impl_trait)]
#![feature(panic_update_hook)]

use core::panic;
use std::panic;
use std::{
any::type_name,
collections::{BTreeSet, HashMap},
Expand Down Expand Up @@ -36,17 +37,18 @@ use netcode::{Netcoder, NetworkPacket};
//use notify::{RecursiveMode, Watcher};
use rollback::{Rollbacker, DUMP_FRAME_TIME, LAST_M_LEN};
use sound::RollbackSoundManager;
use windows::{
imp::{HeapAlloc, HeapFree, WaitForSingleObject},
Win32::{
Foundation::{GetLastError, HMODULE, HWND, TRUE},
Networking::WinSock::{closesocket, SOCKADDR, SOCKET},
System::{
Console::AllocConsole,
Memory::{
VirtualProtect, PAGE_EXECUTE_READWRITE, PAGE_PROTECTION_FLAGS, PAGE_READWRITE,
},
use windows::core::PCWSTR;
use windows::Win32::Foundation::HANDLE;
use windows::Win32::System::LibraryLoader::GetModuleFileNameW;
use windows::Win32::System::Memory::HEAP_FLAGS;
use windows::Win32::{
Foundation::{GetLastError, HMODULE, HWND},
Networking::WinSock::{closesocket, SOCKADDR, SOCKET},
System::{
Memory::{
HeapAlloc, HeapFree, VirtualProtect, PAGE_EXECUTE_READWRITE, PAGE_PROTECTION_FLAGS,
},
Threading::WaitForSingleObject,
},
};

Expand Down Expand Up @@ -108,33 +110,26 @@ macro_rules! println {
}};
}

use winapi::{
shared::{
d3d9::IDirect3DDevice9,
d3d9types::{D3DCLEAR_TARGET, D3DCOLOR, D3DCOLOR_ARGB, D3DRECT},
},
um::{
libloaderapi::GetModuleFileNameW,
winuser::{MessageBoxW, MB_ICONERROR, MB_OK},
},
use winapi::shared::{
d3d9::IDirect3DDevice9,
d3d9types::{D3DCLEAR_TARGET, D3DCOLOR, D3DCOLOR_ARGB, D3DRECT},
};

pub fn warning_box(text: &str, title: &str) {
fn warning_box(text: &str, title: &str) {
let to_utf_16 = |s: &str| PCWSTR(s.encode_utf16().chain([0]).collect::<Vec<u16>>().as_ptr());
unsafe {
use windows::Win32::UI::WindowsAndMessaging::{MessageBoxW, MB_ICONERROR, MB_OK};
MessageBoxW(
null_mut(),
[text.encode_utf16().collect::<Vec<u16>>(), vec![0 as u16]]
.concat()
.as_ptr(),
[title.encode_utf16().collect::<Vec<u16>>(), vec![0 as u16]]
.concat()
.as_ptr(),
HWND(0),
to_utf_16(text),
to_utf_16(title),
MB_OK | MB_ICONERROR,
);
}
}

pub fn pointer_debug_str<T>(p: *const T) -> String {
#[allow(unused)]
fn pointer_debug_str<T>(p: *const T) -> String {
return format!(
"The alignment is {} ({}); the address is {:#010x}.",
align_of::<T>(),
Expand All @@ -145,44 +140,35 @@ pub fn pointer_debug_str<T>(p: *const T) -> String {

#[macro_export]
macro_rules! ptr_wrap {
($src:expr) => {
($src)
// match ($src) {
// src_ => {
// use crate::{pointer_debug_str, warning_box};
// if !src_.is_aligned() {
// warning_box(
// format!(
// "Unaligned pointer at {}:{} :\n{}",
// file!(),
// line!(),
// pointer_debug_str(src_)
// )
// .as_str(),
// "Unaligned pointer!",
// );
// panic!();
// }
// src_
// }
// }
};
($src:expr) => {{
match ($src) {
src_ => {
// use crate::pointer_debug_str;
// assert!(
// src_.is_aligned(),
// "Pointer unaligned at {} {} : {}",
// file!(),
// line!(),
// pointer_debug_str(src_)
// );
src_
}
}
}};
}

static HOOK: Mutex<Option<Box<[HookPoint]>>> = Mutex::new(None);

unsafe fn tamper_memory<T: Sized>(dst: *mut T, src: T) -> T {
let mut old_prot_ptr: PAGE_PROTECTION_FLAGS = PAGE_PROTECTION_FLAGS(0);
assert_ne!(std::mem::size_of::<T>(), 0);
assert_eq!(
VirtualProtect(
dst as *const c_void,
std::mem::size_of::<T>(),
PAGE_EXECUTE_READWRITE,
std::ptr::addr_of_mut!(old_prot_ptr),
),
TRUE,
);
VirtualProtect(
dst as *const c_void,
std::mem::size_of::<T>(),
PAGE_EXECUTE_READWRITE,
std::ptr::addr_of_mut!(old_prot_ptr),
)
.unwrap();
let ori = dst.read_unaligned();
dst.write_unaligned(src);
VirtualProtect(
Expand All @@ -208,15 +194,13 @@ unsafe fn tamper_jmp_relative_opr<T: Sized>(dst: *mut c_void, src: T) -> T {
let end = (dst as usize).wrapping_add(1 + std::mem::size_of::<usize>());
assert_eq!(std::mem::size_of::<T>(), std::mem::size_of::<usize>());
let ret = jmp_relative_opt_to_pointer(dst);
assert_eq!(
VirtualProtect(
p_offset as *const c_void,
std::mem::size_of::<usize>(),
PAGE_EXECUTE_READWRITE,
std::ptr::addr_of_mut!(old_prot_ptr),
),
TRUE,
);
VirtualProtect(
p_offset as *const c_void,
std::mem::size_of::<usize>(),
PAGE_EXECUTE_READWRITE,
std::ptr::addr_of_mut!(old_prot_ptr),
)
.unwrap();
p_offset.write_unaligned((std::mem::transmute_copy::<T, usize>(&src)).wrapping_sub(end));
VirtualProtect(
p_offset as *const c_void,
Expand Down Expand Up @@ -262,13 +246,7 @@ pub unsafe extern "C" fn addRollbackCb(cb: *const Callbacks) {
#[no_mangle]
pub extern "C" fn Initialize(dllmodule: HMODULE) -> bool {
let mut dat = [0u16; 1025];
unsafe {
GetModuleFileNameW(
std::mem::transmute(dllmodule),
&mut dat as *mut u16 as *mut u16,
1024,
)
};
unsafe { GetModuleFileNameW(dllmodule, &mut dat) };

let s = std::ffi::OsString::from_wide(&dat);

Expand Down Expand Up @@ -423,6 +401,19 @@ pub fn force_sound_skip(soundid: usize) {

//returns None on .ini errors
fn truer_exec(filename: PathBuf) -> Option<()> {
panic::update_hook(|prev, info| {
let payload = if let Some(s) = info.payload().downcast_ref::<&str>() {
format!("{s:?}")
} else if let Some(s) = info.payload().downcast_ref::<&String>() {
format!("{s:?}")
} else {
"Panic!".to_string()
};
let backtrace = format!("{:}", std::backtrace::Backtrace::force_capture());
warning_box((payload + "\nbacktrace:\n" + &backtrace).as_str(), "Panic!");
prev(info);
});

#[cfg(feature = "allocconsole")]
unsafe {
AllocConsole();
Expand Down Expand Up @@ -1408,7 +1399,7 @@ fn truer_exec(filename: PathBuf) -> Option<()> {
}
WARNING_FRAME_LOST_COUNTDOWN.store(120, Relaxed);
} else {
WaitForSingleObject(waithandle as isize, ddiff as u32);
WaitForSingleObject(HANDLE(waithandle as isize), ddiff as u32);
if SPIN_TIME_MICROSECOND != 0 {
loop {
let r1 = m.elapsed().unwrap().as_micros();
Expand All @@ -1420,7 +1411,7 @@ fn truer_exec(filename: PathBuf) -> Option<()> {
if let Ok(event) = SOKU_LOOP_EVENT.lock() {
// if the last signal hasn't been reset by the loop
if let Some(event) = *event
&& WaitForSingleObject(event, 0) == 0
&& WaitForSingleObject(HANDLE(event), 0).0 == 0
{
WARNING_FRAME_LOST_COUNTDOWN.store(120, Relaxed);
}
Expand Down Expand Up @@ -1528,31 +1519,12 @@ fn truer_exec(filename: PathBuf) -> Option<()> {
unsafe { ilhook::x86::Hooker::new(0x4171c7, HookType::JmpBack(sniff_sent), 0).hook(5) };
std::mem::forget(new);

let p_call_inst = 0x0041dae5 as *mut u8;
let mut old_prot_ptr: PAGE_PROTECTION_FLAGS = PAGE_PROTECTION_FLAGS(0);
unsafe {
let p_call_offset = p_call_inst.offset(1) as *mut u32;
ORI_RECVFROM = Some(std::mem::transmute(
p_call_inst as u32 + 5 + p_call_offset.read_unaligned(),
));
assert_eq!(
VirtualProtect(
p_call_offset as *const c_void,
4,
PAGE_EXECUTE_READWRITE,
std::ptr::addr_of_mut!(old_prot_ptr),
),
TRUE,
);
p_call_offset
.write_unaligned(recvfrom_with_fake_packet as u32 - (p_call_inst as u32 + 5));
VirtualProtect(
p_call_offset as *const c_void,
4,
old_prot_ptr,
std::ptr::addr_of_mut!(old_prot_ptr),
);
}
tamper_jmp_relative_opr(
0x0041dae5 as *mut c_void,
recvfrom_with_fake_packet as unsafe extern "stdcall" fn(_, _, _, _, _, _) -> _,
)
};
}

// disable x in replay 0x4826b5
Expand Down Expand Up @@ -1641,14 +1613,17 @@ static FREEMUTEX: Mutex<BTreeSet<usize>> = Mutex::new(BTreeSet::new());
#[macro_export]
macro_rules! soku_heap_free {
($ptr:expr) => {{
use windows::{imp::HeapFree, Win32::Foundation::GetLastError};
use windows::Win32::{
Foundation::HANDLE,
System::Memory::{HeapFree, HEAP_FLAGS},
};
let a: usize = $ptr;
assert_ne!(
HeapFree(*(0x89b404 as *const isize), 0, a as *const c_void),
0,
"HeapFree failed for {:?}",
GetLastError()
);
HeapFree(
HANDLE(*(0x89b404 as *const isize)),
HEAP_FLAGS(0),
Some(a as *const c_void),
)
.unwrap_or_else(|e| panic!("HeapFree failed for {:?}", e));
}};
}

Expand All @@ -1668,7 +1643,7 @@ unsafe extern "stdcall" fn heap_free_override(heap: isize, flags: u32, s: *const
|| GetCurrentThreadId() != REQUESTED_THREAD_ID.load(Relaxed)
|| *SOKU_FRAMECOUNT == 0
{
return HeapFree(heap as isize, flags as u32, s);
return HeapFree(HANDLE(heap), HEAP_FLAGS(flags as u32), Some(s)).is_ok() as i32;
}

unsafe {
Expand Down Expand Up @@ -1726,7 +1701,7 @@ pub extern "cdecl" fn is_likely_desynced() -> bool {
}

unsafe extern "stdcall" fn heap_alloc_override(heap: isize, flags: u32, s: usize) -> *mut c_void {
let ret = HeapAlloc(heap, flags, s);
let ret = HeapAlloc(HANDLE(heap), HEAP_FLAGS(flags), s);

if *(0x89b404 as *const usize) != heap as usize
/*|| !matches!(*(0x8a0040 as *const u8), 0x5 | 0xe | 0xd)*/
Expand Down
4 changes: 2 additions & 2 deletions src/rollback.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ use std::{
time::Duration,
};

use windows::Win32::System::Memory::HeapHandle;
use windows::Win32::Foundation::HANDLE;

use crate::{
println, ptr_wrap, set_input_buffer, soku_heap_free, Callbacks, CALLBACK_ARRAY, ISDEBUG,
Expand Down Expand Up @@ -825,7 +825,7 @@ pub unsafe fn dump_frame(
fn read_heap(pos: usize) -> usize {
unsafe {
windows::Win32::System::Memory::HeapSize(
*(0x89b404 as *const HeapHandle),
HANDLE(*(0x89b404 as *const isize)),
windows::Win32::System::Memory::HEAP_FLAGS(0),
pos as *const c_void,
)
Expand Down

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