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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 #ifndef COMPONENTS_NACL_COMMON_NACL_HELPER_LINUX_H_ | 5 #ifndef COMPONENTS_NACL_COMMON_NACL_HELPER_LINUX_H_ |
6 #define COMPONENTS_NACL_COMMON_NACL_HELPER_LINUX_H_ | 6 #define COMPONENTS_NACL_COMMON_NACL_HELPER_LINUX_H_ |
7 | 7 |
8 // A mini-zygote specifically for Native Client. This file defines | 8 // A mini-zygote specifically for Native Client. This file defines |
9 // constants used to implement communication between the nacl_helper | 9 // constants used to implement communication between the nacl_helper |
10 // process and the Chrome zygote. | 10 // process and the Chrome zygote. |
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26 | 26 |
27 // For communications between NaCl loader and zygote. | 27 // For communications between NaCl loader and zygote. |
28 #define kNaClZygoteDescriptor 3 | 28 #define kNaClZygoteDescriptor 3 |
29 // For communications between the NaCl loader process and | 29 // For communications between the NaCl loader process and |
30 // the SUID sandbox. | 30 // the SUID sandbox. |
31 #define kNaClSandboxDescriptor 5 | 31 #define kNaClSandboxDescriptor 5 |
32 // NOTE: kNaClSandboxDescriptor must match | 32 // NOTE: kNaClSandboxDescriptor must match |
33 // content/browser/zygote_main_linux.cc | 33 // content/browser/zygote_main_linux.cc |
34 // kMagicSandboxIPCDescriptor. | 34 // kMagicSandboxIPCDescriptor. |
35 | 35 |
36 // A fork request from the Zygote to the helper includes an array | |
37 // of three file descriptors. These constants are used as indicies | |
38 // into the array. | |
39 // Used to pass in the descriptor for talking to the Browser | |
40 #define kNaClBrowserFDIndex 0 | |
41 // The next two are used in the protocol for discovering the | |
42 // child processes real PID from within the SUID sandbox. See | |
43 // http://code.google.com/p/chromium/wiki/LinuxZygote | |
44 #define kNaClDummyFDIndex 1 | |
45 #define kNaClParentFDIndex 2 | |
46 | |
47 #endif // COMPONENTS_NACL_COMMON_NACL_HELPER_LINUX_H_ | 36 #endif // COMPONENTS_NACL_COMMON_NACL_HELPER_LINUX_H_ |
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