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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "sandbox/src/named_pipe_interception.h"
#include "sandbox/src/crosscall_client.h"
#include "sandbox/src/ipc_tags.h"
#include "sandbox/src/policy_params.h"
#include "sandbox/src/policy_target.h"
#include "sandbox/src/sandbox_factory.h"
#include "sandbox/src/sandbox_nt_util.h"
#include "sandbox/src/sharedmem_ipc_client.h"
#include "sandbox/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;
if (ERROR_SUCCESS != answer.win32_result)
break;
return answer.handle;
} while (false);
::SetLastError(original_error);
return INVALID_HANDLE_VALUE;
}
} // namespace sandbox
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