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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "mojo/edk/embedder/platform_channel_pair.h" | 5 #include "mojo/edk/embedder/platform_channel_pair.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/command_line.h" | 11 #include "base/command_line.h" |
12 #include "base/logging.h" | 12 #include "base/logging.h" |
13 #include "base/rand_util.h" | 13 #include "base/rand_util.h" |
14 #include "base/strings/string_number_conversions.h" | 14 #include "base/strings/string_number_conversions.h" |
15 #include "base/strings/stringprintf.h" | 15 #include "base/strings/stringprintf.h" |
16 #include "base/win/windows_version.h" | 16 #include "base/win/windows_version.h" |
17 #include "mojo/edk/embedder/platform_handle.h" | 17 #include "mojo/edk/embedder/platform_handle.h" |
18 | 18 |
19 namespace mojo { | 19 namespace mojo { |
20 namespace embedder { | 20 namespace embedder { |
21 | 21 |
22 namespace { | 22 namespace { |
23 | 23 |
24 std::wstring GeneratePipeName() { | 24 std::wstring GeneratePipeName() { |
25 return base::StringPrintf(L"\\\\.\\pipe\\mojo.%u.%u.%I64u", | 25 return base::StringPrintf(L"\\\\.\\pipe\\mojo.%u.%u.%I64u", |
26 GetCurrentProcessId(), GetCurrentThreadId(), | 26 GetCurrentProcessId(), |
| 27 GetCurrentThreadId(), |
27 base::RandUint64()); | 28 base::RandUint64()); |
28 } | 29 } |
29 | 30 |
30 } // namespace | 31 } // namespace |
31 | 32 |
32 PlatformChannelPair::PlatformChannelPair() { | 33 PlatformChannelPair::PlatformChannelPair() { |
33 std::wstring pipe_name = GeneratePipeName(); | 34 std::wstring pipe_name = GeneratePipeName(); |
34 | 35 |
35 const DWORD kOpenMode = | 36 const DWORD kOpenMode = |
36 PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED | FILE_FLAG_FIRST_PIPE_INSTANCE; | 37 PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED | FILE_FLAG_FIRST_PIPE_INSTANCE; |
37 const DWORD kPipeMode = PIPE_TYPE_BYTE | PIPE_READMODE_BYTE; | 38 const DWORD kPipeMode = PIPE_TYPE_BYTE | PIPE_READMODE_BYTE; |
38 server_handle_.reset(PlatformHandle( | 39 server_handle_.reset(PlatformHandle( |
39 CreateNamedPipeW(pipe_name.c_str(), kOpenMode, kPipeMode, | 40 CreateNamedPipeW(pipe_name.c_str(), |
| 41 kOpenMode, |
| 42 kPipeMode, |
40 1, // Max instances. | 43 1, // Max instances. |
41 4096, // Out buffer size. | 44 4096, // Out buffer size. |
42 4096, // In buffer size. | 45 4096, // In buffer size. |
43 5000, // Timeout in milliseconds. | 46 5000, // Timeout in milliseconds. |
44 nullptr))); // Default security descriptor. | 47 nullptr))); // Default security descriptor. |
45 PCHECK(server_handle_.is_valid()); | 48 PCHECK(server_handle_.is_valid()); |
46 | 49 |
47 const DWORD kDesiredAccess = GENERIC_READ | GENERIC_WRITE; | 50 const DWORD kDesiredAccess = GENERIC_READ | GENERIC_WRITE; |
48 // The SECURITY_ANONYMOUS flag means that the server side cannot impersonate | 51 // The SECURITY_ANONYMOUS flag means that the server side cannot impersonate |
49 // the client. | 52 // the client. |
50 const DWORD kFlags = | 53 const DWORD kFlags = |
51 SECURITY_SQOS_PRESENT | SECURITY_ANONYMOUS | FILE_FLAG_OVERLAPPED; | 54 SECURITY_SQOS_PRESENT | SECURITY_ANONYMOUS | FILE_FLAG_OVERLAPPED; |
52 // Allow the handle to be inherited by child processes. | 55 // Allow the handle to be inherited by child processes. |
53 SECURITY_ATTRIBUTES security_attributes = { | 56 SECURITY_ATTRIBUTES security_attributes = { |
54 sizeof(SECURITY_ATTRIBUTES), nullptr, TRUE}; | 57 sizeof(SECURITY_ATTRIBUTES), nullptr, TRUE}; |
55 client_handle_.reset( | 58 client_handle_.reset( |
56 PlatformHandle(CreateFileW(pipe_name.c_str(), kDesiredAccess, | 59 PlatformHandle(CreateFileW(pipe_name.c_str(), |
| 60 kDesiredAccess, |
57 0, // No sharing. | 61 0, // No sharing. |
58 &security_attributes, OPEN_EXISTING, kFlags, | 62 &security_attributes, |
| 63 OPEN_EXISTING, |
| 64 kFlags, |
59 nullptr))); // No template file. | 65 nullptr))); // No template file. |
60 PCHECK(client_handle_.is_valid()); | 66 PCHECK(client_handle_.is_valid()); |
61 | 67 |
62 // Since a client has connected, ConnectNamedPipe() should return zero and | 68 // Since a client has connected, ConnectNamedPipe() should return zero and |
63 // GetLastError() should return ERROR_PIPE_CONNECTED. | 69 // GetLastError() should return ERROR_PIPE_CONNECTED. |
64 CHECK(!ConnectNamedPipe(server_handle_.get().handle, nullptr)); | 70 CHECK(!ConnectNamedPipe(server_handle_.get().handle, nullptr)); |
65 PCHECK(GetLastError() == ERROR_PIPE_CONNECTED); | 71 PCHECK(GetLastError() == ERROR_PIPE_CONNECTED); |
66 } | 72 } |
67 | 73 |
68 // static | 74 // static |
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102 << command_line->GetSwitchValueASCII(kMojoPlatformChannelHandleSwitch); | 108 << command_line->GetSwitchValueASCII(kMojoPlatformChannelHandleSwitch); |
103 // (Any existing switch won't actually be removed from the command line, but | 109 // (Any existing switch won't actually be removed from the command line, but |
104 // the last one appended takes precedence.) | 110 // the last one appended takes precedence.) |
105 command_line->AppendSwitchASCII( | 111 command_line->AppendSwitchASCII( |
106 kMojoPlatformChannelHandleSwitch, | 112 kMojoPlatformChannelHandleSwitch, |
107 base::IntToString(HandleToLong(client_handle_.get().handle))); | 113 base::IntToString(HandleToLong(client_handle_.get().handle))); |
108 } | 114 } |
109 | 115 |
110 } // namespace embedder | 116 } // namespace embedder |
111 } // namespace mojo | 117 } // namespace mojo |
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