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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "sandbox/win/src/named_pipe_interception.h"
#include "sandbox/win/src/crosscall_client.h"
#include "sandbox/win/src/ipc_tags.h"
#include "sandbox/win/src/policy_params.h"
#include "sandbox/win/src/policy_target.h"
#include "sandbox/win/src/sandbox_factory.h"
#include "sandbox/win/src/sandbox_nt_util.h"
#include "sandbox/win/src/sharedmem_ipc_client.h"
#include "sandbox/win/src/target_services.h"
namespace sandbox {
HANDLE WINAPI TargetCreateNamedPipeW(
CreateNamedPipeWFunction orig_CreateNamedPipeW, LPCWSTR pipe_name,
DWORD open_mode, DWORD pipe_mode, DWORD max_instance, DWORD out_buffer_size,
DWORD in_buffer_size, DWORD default_timeout,
LPSECURITY_ATTRIBUTES security_attributes) {
HANDLE pipe = orig_CreateNamedPipeW(pipe_name, open_mode, pipe_mode,
max_instance, out_buffer_size,
in_buffer_size, default_timeout,
security_attributes);
if (INVALID_HANDLE_VALUE != pipe)
return pipe;
DWORD original_error = ::GetLastError();
// We don't trust that the IPC can work this early.
if (!SandboxFactory::GetTargetServices()->GetState()->InitCalled())
return INVALID_HANDLE_VALUE;
// We don't support specific Security Attributes.
if (security_attributes)
return INVALID_HANDLE_VALUE;
do {
void* memory = GetGlobalIPCMemory();
if (NULL == memory)
break;
CountedParameterSet<NameBased> params;
params[NameBased::NAME] = ParamPickerMake(pipe_name);
if (!QueryBroker(IPC_CREATENAMEDPIPEW_TAG, params.GetBase()))
break;
SharedMemIPCClient ipc(memory);
CrossCallReturn answer = {0};
ResultCode code = CrossCall(ipc, IPC_CREATENAMEDPIPEW_TAG, pipe_name,
open_mode, pipe_mode, max_instance,
out_buffer_size, in_buffer_size,
default_timeout, &answer);
if (SBOX_ALL_OK != code)
break;
::SetLastError(answer.win32_result);
if (ERROR_SUCCESS != answer.win32_result)
return INVALID_HANDLE_VALUE;
return answer.handle;
} while (false);
::SetLastError(original_error);
return INVALID_HANDLE_VALUE;
}
} // namespace sandbox
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