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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 // We don't trust that the IPC can work this early. | |
31 if (!SandboxFactory::GetTargetServices()->GetState()->InitCalled()) | |
32 return INVALID_HANDLE_VALUE; | |
33 | |
34 DWORD original_error = ::GetLastError(); | |
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 | |
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