Ryujinx/Ryujinx.HLE/HOS/Services/Spl/IRandomInterface.cs
gdkchan f77694e4f7
Implement a new physical memory manager and replace DeviceMemory (#856)
* Implement a new physical memory manager and replace DeviceMemory

* Proper generic constraints

* Fix debug build

* Add memory tests

* New CPU memory manager and general code cleanup

* Remove host memory management from CPU project, use Ryujinx.Memory instead

* Fix tests

* Document exceptions on MemoryBlock

* Fix leak on unix memory allocation

* Proper disposal of some objects on tests

* Fix JitCache not being set as initialized

* GetRef without checks for 8-bits and 16-bits CAS

* Add MemoryBlock destructor

* Throw in separate method to improve codegen

* Address PR feedback

* QueryModified improvements

* Fix memory write tracking not marking all pages as modified in some cases

* Simplify MarkRegionAsModified

* Remove XML doc for ghost param

* Add back optimization to avoid useless buffer updates

* Add Ryujinx.Cpu project, move MemoryManager there and remove MemoryBlockWrapper

* Some nits

* Do not perform address translation when size is 0

* Address PR feedback and format NativeInterface class

* Remove ghost parameter description

* Update Ryujinx.Cpu to .NET Core 3.1

* Address PR feedback

* Fix build

* Return a well defined value for GetPhysicalAddress with invalid VA, and do not return unmapped ranges as modified

* Typo
2020-05-04 08:54:50 +10:00

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C#

using System;
using System.Security.Cryptography;
namespace Ryujinx.HLE.HOS.Services.Spl
{
[Service("csrng")]
class IRandomInterface : IpcService, IDisposable
{
private RNGCryptoServiceProvider _rng;
public IRandomInterface(ServiceCtx context)
{
_rng = new RNGCryptoServiceProvider();
}
[Command(0)]
// GetRandomBytes() -> buffer<unknown, 6>
public ResultCode GetRandomBytes(ServiceCtx context)
{
byte[] randomBytes = new byte[context.Request.ReceiveBuff[0].Size];
_rng.GetBytes(randomBytes);
context.Memory.Write((ulong)context.Request.ReceiveBuff[0].Position, randomBytes);
return ResultCode.Success;
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
_rng.Dispose();
}
}
}
}