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Update TamperMachine and disable write-to-code prevention (#2506)

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* Enable write to memory and improve logging

* Update tamper machine opcodes and improve reporting

* Add Else support

* Add missing private statement
This commit is contained in:
Caian Benedicto 2021-08-04 17:05:17 -03:00 • committed by GitHub
parent a27986c311
commit ff8849671a
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GPG key ID: 4AEE18F83AFDEB23
15 changed files with 156 additions and 66 deletions
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26
Ryujinx.HLE/HOS/TamperMachine.cs
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@ -31,7 +31,7 @@ namespace Ryujinx.HLE.HOS
}
}
internal void InstallAtmosphereCheat(IEnumerable<string> rawInstructions, ProcessTamperInfo info, ulong exeAddress)
internal void InstallAtmosphereCheat(string name, IEnumerable<string> rawInstructions, ProcessTamperInfo info, ulong exeAddress)
{
if (!CanInstallOnPid(info.Process.Pid))
{
@ -39,11 +39,13 @@ namespace Ryujinx.HLE.HOS
}
ITamperedProcess tamperedProcess = new TamperedKProcess(info.Process);
AtmosphereCompiler compiler = new AtmosphereCompiler();
ITamperProgram program = compiler.Compile(rawInstructions, exeAddress, info.HeapAddress, tamperedProcess);
AtmosphereCompiler compiler = new AtmosphereCompiler(exeAddress, info.HeapAddress, info.AliasAddress, info.AslrAddress, tamperedProcess);
ITamperProgram program = compiler.Compile(name, rawInstructions);
if (program != null)
{
program.TampersCodeMemory = false;
_programs.Enqueue(program);
}
@ -116,27 +118,27 @@ namespace Ryujinx.HLE.HOS
// Re-enqueue the tampering program because the process is still valid.
_programs.Enqueue(program);
Logger.Debug?.Print(LogClass.TamperMachine, "Running tampering program");
Logger.Debug?.Print(LogClass.TamperMachine, $"Running tampering program {program.Name}");
try
{
ControllerKeys pressedKeys = (ControllerKeys)Thread.VolatileRead(ref _pressedKeys);
program.Process.TamperedCodeMemory = false;
program.Execute(pressedKeys);
}
catch (CodeRegionTamperedException ex)
{
Logger.Debug?.Print(LogClass.TamperMachine, $"Prevented tampering program from modifing code memory");
if (!String.IsNullOrEmpty(ex.Message))
// Detect the first attempt to tamper memory and log it.
if (!program.TampersCodeMemory && program.Process.TamperedCodeMemory)
{
Logger.Debug?.Print(LogClass.TamperMachine, ex.Message);
program.TampersCodeMemory = true;
Logger.Warning?.Print(LogClass.TamperMachine, $"Tampering program {program.Name} modifies code memory so it may not work properly");
}
}
catch (Exception ex)
{
Logger.Debug?.Print(LogClass.TamperMachine, $"The tampering program crashed, this can happen while the game is starting");
Logger.Debug?.Print(LogClass.TamperMachine, $"The tampering program {program.Name} crashed, this can happen while the game is starting");
if (!String.IsNullOrEmpty(ex.Message))
if (!string.IsNullOrEmpty(ex.Message))
{
Logger.Debug?.Print(LogClass.TamperMachine, ex.Message);
}