public void ReadWriteWithMarshalling(Reloaded.Memory.Sources.IMemory memorySource)
{
// Prepare
IMemoryTools.SwapExternalMemorySource(ref memorySource, _helloWorldProcess);
IntPtr pointer = memorySource.Allocate(0x100);
/* Start Test */
// Random marshal struct read/write.
for (int x = 0; x < 100; x++)
{
MarshallingStruct randomIntStruct = MarshallingStruct.BuildRandomStruct();
memorySource.Write(pointer, ref randomIntStruct, true);
memorySource.Read(pointer, out MarshallingStruct randomValueCopy, true);
// Test for equality.
Assert.Equal(randomIntStruct, randomValueCopy);
// Test references:
// If marshalling did not take place, write function would have written pointer to string and read it back in.
// If marshalling did take place, a new string was created with the value of the string found in memory.
// Set marshal parameter to false in read/write operation above to test this.
Assert.False(object.ReferenceEquals(randomIntStruct.Name, randomValueCopy.Name));
}
/* End Test */
// Cleanup
memorySource.Free(pointer);
}
public void SafeReadWriteRaw(Reloaded.Memory.Sources.IMemory memorySource)
{
// Prepare
int arrayElements = 13432;
IMemoryTools.SwapExternalMemorySource(ref memorySource, _helloWorldProcess);
IntPtr pointer = memorySource.Allocate(arrayElements);
/* Start Test */
// Generate random int struct to read/write to.
var randomByteArray = RandomByteArray.GenerateRandomByteArray(arrayElements);
// Run the change permission function to deny read/write access.
try { memorySource.ChangePermission(pointer, arrayElements, Kernel32.Kernel32.MEM_PROTECTION.PAGE_NOACCESS); }
catch (NotImplementedException) { return; } // ChangePermission is optional to implement
// Throws corrupted state exception if operations fail until restore.
memorySource.SafeWriteRaw(pointer, randomByteArray.Array);
memorySource.SafeReadRaw(pointer, out byte[] randomByteArrayCopy, randomByteArray.Array.Length);
// Restore or NETCore execution engine will complain.
try { memorySource.ChangePermission(pointer, arrayElements, Kernel32.Kernel32.MEM_PROTECTION.PAGE_EXECUTE_READWRITE); }
catch (NotImplementedException) { return; } // ChangePermission is optional to implement
// Compare before exiting test.
Assert.Equal(randomByteArray.Array, randomByteArrayCopy);
// Cleanup
memorySource.Free(pointer);
}
public void AllocateMemory(Reloaded.Memory.Sources.IMemory memorySource)
{
// Prepare
IMemoryTools.SwapExternalMemorySource(ref memorySource, _helloWorldProcess);
// Test
IntPtr pointer = memorySource.Allocate(0xFFFF);
Assert.NotEqual((IntPtr)0, pointer);
memorySource.Free(pointer);
}
public void SafeReadWrite(Reloaded.Memory.Sources.IMemory memorySource)
{
// Prepare
int structSize = Struct.GetSize <RandomIntStruct>();
IMemoryTools.SwapExternalMemorySource(ref memorySource, _helloWorldProcess);
IntPtr pointer = memorySource.Allocate(structSize);
/* Start Test */
// Generate random int struct to read/write to.
var randomIntStruct = RandomIntStruct.BuildRandomStruct();
// Run the change permission function to deny read/write access.
try { memorySource.ChangePermission(pointer, structSize, Kernel32.Kernel32.MEM_PROTECTION.PAGE_NOACCESS); }
catch (NotImplementedException) { return; } // ChangePermission is optional to implement
// Throws corrupted state exception if operations fail until restore.
memorySource.SafeWrite(pointer, ref randomIntStruct, false);
memorySource.SafeRead(pointer, out RandomIntStruct randomIntStructOldOverload, false);
memorySource.SafeRead(pointer, out RandomIntStruct randomIntStructNewOverload);
Assert.Equal(randomIntStructOldOverload, randomIntStructNewOverload);
// New overloads in 1.4.0
memorySource.SafeWrite(pointer, ref randomIntStruct);
memorySource.SafeRead(pointer, out randomIntStructOldOverload, false);
memorySource.SafeRead(pointer, out randomIntStructNewOverload);
Assert.Equal(randomIntStructOldOverload, randomIntStructNewOverload);
// We test both read functions against each write function.
// Restore or NETCore execution engine will complain.
try { memorySource.ChangePermission(pointer, structSize, Kernel32.Kernel32.MEM_PROTECTION.PAGE_EXECUTE_READWRITE); }
catch (NotImplementedException) { return; } // ChangePermission is optional to implement
// Compare before exiting test.
Assert.Equal(randomIntStruct, randomIntStructNewOverload);
// Cleanup
memorySource.Free(pointer);
}
public void ReadWritePrimitives(Reloaded.Memory.Sources.IMemory memorySource)
{
// Prepare
IMemoryTools.SwapExternalMemorySource(ref memorySource, _helloWorldProcess);
IntPtr pointer = memorySource.Allocate(0x100);
/* Start Test */
// Random integer read/write.
for (int x = 0; x < 100; x++)
{
int randomValue = new Random().Next();
memorySource.Write(pointer, ref randomValue);
memorySource.Read(pointer, out int randomValueCopy);
Assert.Equal(randomValue, randomValueCopy);
}
/* End Test */
// Cleanup
memorySource.Free(pointer);
}
public void ChangePermissions(Reloaded.Memory.Sources.IMemory memorySource)
{
// Prepare
IMemoryTools.SwapExternalMemorySource(ref memorySource, _helloWorldProcess);
IntPtr pointer = memorySource.Allocate(0x100);
/* Start Test */
// Run the change permission function to deny read/write access.
try { memorySource.ChangePermission(pointer, 0x100, Kernel32.Kernel32.MEM_PROTECTION.PAGE_NOACCESS); }
catch (NotImplementedException) { return; } // ChangePermission is optional to implement
// NETCore removed handling of Corrupted State Exceptions https://github.com/dotnet/coreclr/issues/9045
// We cannot properly test the method.
// Restore or NETCore execution engine will complain.
try { memorySource.ChangePermission(pointer, 0x100, Kernel32.Kernel32.MEM_PROTECTION.PAGE_EXECUTE_READWRITE); }
catch (NotImplementedException) { return; } // ChangePermission is optional to implement
// Cleanup
memorySource.Free(pointer);
}
public void ReadWriteStructs(Reloaded.Memory.Sources.IMemory memorySource)
{
// Prepare
IMemoryTools.SwapExternalMemorySource(ref memorySource, _helloWorldProcess);
IntPtr pointer = memorySource.Allocate(0x100);
/* Start Test */
// Random struct read/write.
for (int x = 0; x < 100; x++)
{
RandomIntStruct randomIntStruct = RandomIntStruct.BuildRandomStruct();
memorySource.Write(pointer, ref randomIntStruct);
memorySource.Read(pointer, out RandomIntStruct randomValueCopy);
Assert.Equal(randomIntStruct, randomValueCopy);
}
/* End Test */
// Cleanup
memorySource.Free(pointer);
}
public void ReadWriteRawData(Reloaded.Memory.Sources.IMemory memorySource)
{
// Prepare
int allocationSize = 0x100;
IMemoryTools.SwapExternalMemorySource(ref memorySource, _helloWorldProcess);
IntPtr pointer = memorySource.Allocate(allocationSize);
/* Start Test */
// Random integer read/write.
for (int x = 0; x < 100; x++)
{
RandomByteArray randomArray = RandomByteArray.GenerateRandomByteArray(allocationSize);
memorySource.WriteRaw(pointer, randomArray.Array);
memorySource.ReadRaw(pointer, out byte[] randomValueCopy, randomArray.Array.Length);
Assert.Equal(randomArray.Array, randomValueCopy);
}
/* End Test */
// Cleanup
memorySource.Free(pointer);
}