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04191e1c5d
Summary: We have observed rocksdb databases creating info log files with world-writeable permissions. The reason why the file is created like so is because stdio streams opened with fopen calls use mode 0666, and while normally most systems have a umask of 022, in some occasions (for instance, while running daemons), you may find that the application is running with a less restrictive umask. The result is that when opening the DB, the LOG file would be created with world-writeable perms: ``` $ ls -lh db/ total 6.4M -rw-r--r-- 1 ibarba users 115 Mar 24 17:41 000004.log -rw-r--r-- 1 ibarba users 16 Mar 24 17:41 CURRENT -rw-r--r-- 1 ibarba users 37 Mar 24 17:41 IDENTITY -rw-r--r-- 1 ibarba users 0 Mar 24 17:41 LOCK -rw-rw-r-- 1 ibarba users 114K Mar 24 17:41 LOG -rw-r--r-- 1 ibarba users 514 Mar 24 17:41 MANIFEST-000003 -rw-r--r-- 1 ibarba users 31K Mar 24 17:41 OPTIONS-000018 -rw-r--r-- 1 ibarba users 31K Mar 24 17:41 OPTIONS-000020 ``` This diff replaces the fopen call with a regular open() call restricting mode, and then using fdopen to associate an stdio stream with that file descriptor. Resulting in the following files being created: ``` -rw-r--r-- 1 ibarba users 58 Mar 24 18:16 000004.log -rw-r--r-- 1 ibarba users 16 Mar 24 18:16 CURRENT -rw-r--r-- 1 ibarba users 37 Mar 24 18:16 IDENTITY -rw-r--r-- 1 ibarba users 0 Mar 24 18:16 LOCK -rw-r--r-- 1 ibarba users 111K Mar 24 18:16 LOG -rw-r--r-- 1 ibarba users 514 Mar 24 18:16 MANIFEST-000003 -rw-r--r-- 1 ibarba users 31K Mar 24 18:16 OPTIONS-000018 -rw-r--r-- 1 ibarba users 31K Mar 24 18:16 OPTIONS-000020 ``` With the correct permissions Pull Request resolved: https://github.com/facebook/rocksdb/pull/8106 Reviewed By: akankshamahajan15 Differential Revision: D27415377 Pulled By: mrambacher fbshipit-source-id: 97ac6c215700a7ea306f4a1fdf9fcf64a3cbb202 |
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| .. | ||
| composite_env.cc | ||
| composite_env_wrapper.h | ||
| env.cc | ||
| env_basic_test.cc | ||
| env_chroot.cc | ||
| env_chroot.h | ||
| env_encryption.cc | ||
| env_encryption_ctr.h | ||
| env_hdfs.cc | ||
| env_posix.cc | ||
| env_test.cc | ||
| file_system.cc | ||
| file_system_tracer.cc | ||
| file_system_tracer.h | ||
| fs_posix.cc | ||
| io_posix.cc | ||
| io_posix.h | ||
| io_posix_test.cc | ||
| mock_env.cc | ||
| mock_env.h | ||
| mock_env_test.cc | ||