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