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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#include "common.h"
#include "fastserializer.h"
#include "profilerdiagnosticprotocolhelper.h"
#include "diagnosticsipc.h"
#include "diagnosticsprotocol.h"
#if defined(FEATURE_PERFTRACING) && defined(FEATURE_PROFAPI_ATTACH_DETACH) && !defined(DACCESS_COMPILE)
#include "profilinghelper.h"
#include "profilinghelper.inl"
void ProfilerDiagnosticProtocolHelper::HandleIpcMessage(DiagnosticsIpc::IpcMessage& message, IpcStream* pStream)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
MODE_PREEMPTIVE;
PRECONDITION(pStream != nullptr);
}
CONTRACTL_END;
switch ((ProfilerCommandId)message.GetHeader().CommandId)
{
case ProfilerCommandId::AttachProfiler:
ProfilerDiagnosticProtocolHelper::AttachProfiler(message, pStream);
break;
default:
STRESS_LOG1(LF_DIAGNOSTICS_PORT, LL_WARNING, "Received unknown request type (%d)\n", message.GetHeader().CommandSet);
DiagnosticsIpc::IpcMessage::SendErrorMessage(pStream, CORDIAGIPC_E_UNKNOWN_COMMAND);
delete pStream;
break;
}
}
const AttachProfilerCommandPayload* AttachProfilerCommandPayload::TryParse(BYTE* lpBuffer, uint16_t& BufferSize)
{
CONTRACTL
{
NOTHROW;
GC_TRIGGERS;
MODE_PREEMPTIVE;
PRECONDITION(lpBuffer != nullptr);
}
CONTRACTL_END;
AttachProfilerCommandPayload* payload = new (nothrow) AttachProfilerCommandPayload;
if (payload == nullptr)
{
// OOM
return nullptr;
}
payload->incomingBuffer = lpBuffer;
uint8_t* pBufferCursor = payload->incomingBuffer;
uint32_t bufferLen = BufferSize;
if (!::TryParse(pBufferCursor, bufferLen, payload->dwAttachTimeout) ||
!::TryParse(pBufferCursor, bufferLen, payload->profilerGuid) ||
!TryParseString(pBufferCursor, bufferLen, payload->pwszProfilerPath) ||
!::TryParse(pBufferCursor, bufferLen, payload->cbClientData) ||
!(bufferLen <= payload->cbClientData))
{
delete payload;
return nullptr;
}
payload->pClientData = pBufferCursor;
return payload;
}
void ProfilerDiagnosticProtocolHelper::AttachProfiler(DiagnosticsIpc::IpcMessage& message, IpcStream *pStream)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
MODE_PREEMPTIVE;
PRECONDITION(pStream != nullptr);
}
CONTRACTL_END;
if (pStream == nullptr)
{
return;
}
HRESULT hr = S_OK;
NewHolder<const AttachProfilerCommandPayload> payload = message.TryParsePayload<AttachProfilerCommandPayload>();
if (payload == nullptr)
{
hr = CORDIAGIPC_E_BAD_ENCODING;
goto ErrExit;
}
if (!g_profControlBlock.fProfControlBlockInitialized)
{
hr = CORPROF_E_RUNTIME_UNINITIALIZED;
goto ErrExit;
}
// Certain actions are only allowable during attach, and this flag is how we track it.
ClrFlsSetThreadType(ThreadType_ProfAPI_Attach);
EX_TRY
{
hr = ProfilingAPIUtility::LoadProfilerForAttach(&payload->profilerGuid,
payload->pwszProfilerPath,
payload->pClientData,
payload->cbClientData,
payload->dwAttachTimeout);
}
EX_CATCH_HRESULT(hr);
// Clear the flag so this thread isn't permanently marked as the attach thread.
ClrFlsClearThreadType(ThreadType_ProfAPI_Attach);
ErrExit:
if (hr != S_OK)
{
DiagnosticsIpc::IpcMessage::SendErrorMessage(pStream, hr);
}
else
{
DiagnosticsIpc::IpcMessage profilerAttachResponse;
if (profilerAttachResponse.Initialize(DiagnosticsIpc::GenericSuccessHeader, hr))
profilerAttachResponse.Send(pStream);
}
delete pStream;
}
#endif // defined(FEATURE_PERFTRACING) && defined(FEATURE_PROFAPI_ATTACH_DETACH) && !defined(DACCESS_COMPILE)
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