Chromium Code Reviews Chromium Code Reviews
Issue 371113003:
Disable yama on 3.2 kernels with 32bit userland and 64bit kernel. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master| OLD | NEW |
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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 #ifndef SANDBOX_LINUX_SERVICES_YAMA_H_ | 5 #ifndef SANDBOX_LINUX_SERVICES_YAMA_H_ |
| 6 #define SANDBOX_LINUX_SERVICES_YAMA_H_ | 6 #define SANDBOX_LINUX_SERVICES_YAMA_H_ |
| 7 | 7 |
| 8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
| 9 #include "base/process/process_handle.h" | 9 #include "base/process/process_handle.h" |
| 10 #include "sandbox/sandbox_export.h" | 10 #include "sandbox/sandbox_export.h" |
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| 42 // Checks if Yama is currently in enforcing mode for the machine (not the | 42 // Checks if Yama is currently in enforcing mode for the machine (not the |
| 43 // current process). This requires access to the filesystem and will use | 43 // current process). This requires access to the filesystem and will use |
| 44 // /proc/sys/kernel/yama/ptrace_scope. | 44 // /proc/sys/kernel/yama/ptrace_scope. |
| 45 static int GetStatus(); | 45 static int GetStatus(); |
| 46 | 46 |
| 47 // Helper for checking for STATUS_PRESENT in GetStatus(). | 47 // Helper for checking for STATUS_PRESENT in GetStatus(). |
| 48 static bool IsPresent(); | 48 static bool IsPresent(); |
| 49 // Helper for checkking for STATUS_ENFORCING in GetStatus(). | 49 // Helper for checkking for STATUS_ENFORCING in GetStatus(). |
| 50 static bool IsEnforcing(); | 50 static bool IsEnforcing(); |
| 51 | 51 |
| 52 // Linux 3.2 has a bug with 32bit userspace and 64bit kernels. This function | |
|
Jorge Lucangeli Obes
2014/07/08 04:14:28
32-bit, 64-bit
| |
| 53 // returns true if Yama is disabled due to this bug. | |
| 54 static bool HasLinux32Bug(); | |
| 55 | |
| 52 private: | 56 private: |
| 53 DISALLOW_IMPLICIT_CONSTRUCTORS(Yama); | 57 DISALLOW_IMPLICIT_CONSTRUCTORS(Yama); |
| 54 }; | 58 }; |
| 55 | 59 |
| 56 } // namespace sandbox | 60 } // namespace sandbox |
| 57 | 61 |
| 58 #endif // SANDBOX_LINUX_SERVICES_YAMA_H_ | 62 #endif // SANDBOX_LINUX_SERVICES_YAMA_H_ |
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