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comparison: security/sandbox/win/src/named_pipe_interception.cc
security/sandbox/win/src/named_pipe_interception.cc
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| 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. | |
| 4 | |
| 5 #include "sandbox/win/src/named_pipe_interception.h" | |
| 6 | |
| 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" | |
| 15 | |
| 16 namespace sandbox { | |
| 17 | |
| 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; | |
| 29 | |
| 30 DWORD original_error = ::GetLastError(); | |
| 31 | |
| 32 // We don't trust that the IPC can work this early. | |
| 33 if (!SandboxFactory::GetTargetServices()->GetState()->InitCalled()) | |
| 34 return INVALID_HANDLE_VALUE; | |
| 35 | |
| 36 // We don't support specific Security Attributes. | |
| 37 if (security_attributes) | |
| 38 return INVALID_HANDLE_VALUE; | |
| 39 | |
| 40 do { | |
| 41 void* memory = GetGlobalIPCMemory(); | |
| 42 if (NULL == memory) | |
| 43 break; | |
| 44 | |
| 45 CountedParameterSet<NameBased> params; | |
| 46 params[NameBased::NAME] = ParamPickerMake(pipe_name); | |
| 47 | |
| 48 if (!QueryBroker(IPC_CREATENAMEDPIPEW_TAG, params.GetBase())) | |
| 49 break; | |
| 50 | |
| 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; | |
| 59 | |
| 60 ::SetLastError(answer.win32_result); | |
| 61 | |
| 62 if (ERROR_SUCCESS != answer.win32_result) | |
| 63 return INVALID_HANDLE_VALUE; | |
| 64 | |
| 65 return answer.handle; | |
| 66 } while (false); | |
| 67 | |
| 68 ::SetLastError(original_error); | |
| 69 return INVALID_HANDLE_VALUE; | |
| 70 } | |
| 71 | |
| 72 } // namespace sandbox |
