The Tor Browser: security/sandbox/win/src/named_pipe

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     5 #include "sandbox/win/src/named_pipe_interception.h"

     7 #include "sandbox/win/src/crosscall_client.h"

     8 #include "sandbox/win/src/ipc_tags.h"

     9 #include "sandbox/win/src/policy_params.h"

    10 #include "sandbox/win/src/policy_target.h"

    11 #include "sandbox/win/src/sandbox_factory.h"

    12 #include "sandbox/win/src/sandbox_nt_util.h"

    13 #include "sandbox/win/src/sharedmem_ipc_client.h"

    14 #include "sandbox/win/src/target_services.h"

    16 namespace sandbox {

    18 HANDLE WINAPI TargetCreateNamedPipeW(

    19     CreateNamedPipeWFunction orig_CreateNamedPipeW, LPCWSTR pipe_name,

    20     DWORD open_mode, DWORD pipe_mode, DWORD max_instance, DWORD out_buffer_size,

    21     DWORD in_buffer_size, DWORD default_timeout,

    22     LPSECURITY_ATTRIBUTES security_attributes) {

    23   HANDLE pipe = orig_CreateNamedPipeW(pipe_name, open_mode, pipe_mode,

    24                                       max_instance, out_buffer_size,

    25                                       in_buffer_size, default_timeout,

    26                                       security_attributes);

    27   if (INVALID_HANDLE_VALUE != pipe)

    28     return pipe;

    30   DWORD original_error = ::GetLastError();

    32   // We don't trust that the IPC can work this early.

    33   if (!SandboxFactory::GetTargetServices()->GetState()->InitCalled())

    34     return INVALID_HANDLE_VALUE;

    36   // We don't support specific Security Attributes.

    37   if (security_attributes)

    38     return INVALID_HANDLE_VALUE;

    40   do {

    41     void* memory = GetGlobalIPCMemory();

    42     if (NULL == memory)

    43       break;

    45     CountedParameterSet<NameBased> params;

    46     params[NameBased::NAME] = ParamPickerMake(pipe_name);

    48     if (!QueryBroker(IPC_CREATENAMEDPIPEW_TAG, params.GetBase()))

    49       break;

    51     SharedMemIPCClient ipc(memory);

    52     CrossCallReturn answer = {0};

    53     ResultCode code = CrossCall(ipc, IPC_CREATENAMEDPIPEW_TAG, pipe_name,

    54                                 open_mode, pipe_mode, max_instance,

    55                                 out_buffer_size, in_buffer_size,

    56                                 default_timeout, &answer);

    57     if (SBOX_ALL_OK != code)

    58       break;

    60     ::SetLastError(answer.win32_result);

    62     if (ERROR_SUCCESS != answer.win32_result)

    63       return INVALID_HANDLE_VALUE;

    65     return answer.handle;

    66   } while (false);

    68   ::SetLastError(original_error);

    69   return INVALID_HANDLE_VALUE;

    70 }

    72 }  // namespace sandbox

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