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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;
- // We don't trust that the IPC can work this early.
- if (!SandboxFactory::GetTargetServices()->GetState()->InitCalled())
- return INVALID_HANDLE_VALUE;
- DWORD original_error = ::GetLastError();
- // We don't support specific Security Attributes.
- if (security_attributes)
- return INVALID_HANDLE_VALUE;
- do {
- void* memory = GetGlobalIPCMemory();
- if (!memory)
- break;
- CountedParameterSet<NameBased> params;
- params[NameBased::NAME] = ParamPickerMake(pipe_name);
- if (!QueryBroker(IpcTag::CREATENAMEDPIPEW, params.GetBase()))
- break;
- SharedMemIPCClient ipc(memory);
- CrossCallReturn answer = {0};
- ResultCode code =
- CrossCall(ipc, IpcTag::CREATENAMEDPIPEW, 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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