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2020-08-18Merge release-20200810.0-49-gb3141b680 (automated)gVisor bot
2020-08-18Merge release-20200810.0-48-gb9d87ae7a (automated)gVisor bot
2020-08-18Merge release-20200810.0-47-g673b6cc7f (automated)gVisor bot
2020-08-18Merge release-20200810.0-46-gda5c2ea6d (automated)gVisor bot
2020-08-17Merge release-20200810.0-44-gd42d01b97 (automated)gVisor bot
2020-08-17Merge release-20200810.0-43-g1b938ba72 (automated)gVisor bot
2020-08-17Merge release-20200810.0-42-g988ab2705 (automated)gVisor bot
2020-08-17Merge release-20200810.0-41-ge3e1b3689 (automated)gVisor bot
2020-08-17[vfs] Do O_DIRECTORY check after resolving symlinks.Ayush Ranjan
Fixes python runtime test test_glob. Updates #3515 We were checking is the to-be-opened dentry is a dir or not before resolving symlinks. We should check that after resolving symlinks. This was preventing us from opening a symlink which pointed to a directory with O_DIRECTORY. Also added this check in tmpfs and removed a duplicate check. PiperOrigin-RevId: 327085895
2020-08-17Merge release-20200810.0-40-ge3c4bbd10 (automated)gVisor bot
2020-08-17Merge release-20200810.0-39-g3bd066d50 (automated)gVisor bot
2020-08-15Merge release-20200810.0-36-g9a7b5830a (automated)gVisor bot
2020-08-15Merge release-20200810.0-35-g1736b2208 (automated)gVisor bot
2020-08-14Merge release-20200810.0-28-gd6520e1d0 (automated)gVisor bot
2020-08-14Merge release-20200810.0-27-gd3bb50ebf (automated)gVisor bot
2020-08-14Merge release-20200810.0-26-g20be1c0e6 (automated)gVisor bot
2020-08-14Merge release-20200810.0-24-g5036f135e (automated)gVisor bot
2020-08-13Merge release-20200810.0-23-g47515f475 (automated)gVisor bot
2020-08-13Merge release-20200810.0-21-g36134667b (automated)gVisor bot
2020-08-12Add reference leak checking to vfs2 tmpfs.inode.Dean Deng
Updates #1486. PiperOrigin-RevId: 326354750
2020-08-13Merge release-20200810.0-20-g42b610d56 (automated)gVisor bot
2020-08-12[vfs2][gofer] Return appropriate errors when opening and creating files.Ayush Ranjan
Fixes php test ext/standard/tests/file/touch_variation5.phpt on vfs2. Updates #3516 Also spotted a bug with O_EXCL, where we did not return EEXIST when we tried to open the root of the filesystem with O_EXCL | O_CREAT. Added some more tests for open() corner cases. PiperOrigin-RevId: 326346863
2020-08-06Merge release-20200804.0-26-g7ed4b2b5a (automated)gVisor bot
2020-08-05Correctly decrement link counts in tmpfs rename operations.Dean Deng
When a directory is replaced by a rename operation, its link count should reach zero. We were missing the link from `dir/.` PiperOrigin-RevId: 325141730
2020-08-05Merge release-20200622.1-337-ga2e129b54 (automated)gVisor bot
2020-08-05Add missing case in tmpfs.inode.direntType.Dean Deng
This was discovered by syzkaller. PiperOrigin-RevId: 325025193
2020-08-05Merge release-20200622.1-333-gb44408b40 (automated)gVisor bot
2020-08-04Automated rollback of changelist 324906582Dean Deng
PiperOrigin-RevId: 324931854
2020-08-05Merge release-20200622.1-332-g338f96b36 (automated)gVisor bot
2020-08-04Merge release-20200622.1-329-g00993130e (automated)gVisor bot
2020-08-04Merge release-20200622.1-328-g0500f84b6 (automated)gVisor bot
2020-08-04Add reference counting utility to VFS2.Dean Deng
The utility has several differences from the VFS1 equivalent: - There are no weak references, which have a significant overhead - In order to print useful debug messages with the type of the reference- counted object, we use a generic Refs object with the owner type as a template parameter. In vfs1, this was accomplished by storing a type name and caller stack directly in the ref count (as in vfs1), which increases the struct size by 6x. (Note that the caller stack was needed because fs types like Dirent were shared by all fs implementations; in vfs2, each impl has its own data structures, so this is no longer necessary.) As an example, the utility is added to tmpfs.inode. Updates #1486. PiperOrigin-RevId: 324906582
2020-08-03Merge release-20200622.1-313-gb2ae7ea1b (automated)gVisor bot
2020-08-03Plumbing context.Context to DecRef() and Release().Nayana Bidari
context is passed to DecRef() and Release() which is needed for SO_LINGER implementation. PiperOrigin-RevId: 324672584
2020-07-24Merge release-20200622.1-210-gd9a3f5d0c (automated)gVisor bot
2020-07-23Add permission checks to vfs2 truncate.Dean Deng
- Check write permission on truncate(2). Unlike ftruncate(2), truncate(2) fails if the user does not have write permissions on the file. - For gofers under InteropModeShared, check file type before making a truncate request. We should fail early and avoid making an rpc when possible. Furthermore, depending on the remote host's failure may give us unexpected behavior--if the host converts the truncate request to an ftruncate syscall on an open fd, we will get EINVAL instead of EISDIR. Updates #2923. PiperOrigin-RevId: 322913569
2020-07-22Merge release-20200622.1-186-g9654bf04a (automated)gVisor bot
2020-07-22[vfs2][tmpfs] Implement O_APPENDAyush Ranjan
Updates #2923 PiperOrigin-RevId: 322671489
2020-07-07Merge release-20200622.1-74-g10930189c (automated)gVisor bot
2020-07-07Fix mknod and inotify syscall testAyush Ranjan
This change fixes a few things: - creating sockets using mknod(2) is supported via vfs2 - fsgofer can create regular files via mknod(2) - mode = 0 for mknod(2) will be interpreted as regular file in vfs2 as well Updates #2923 PiperOrigin-RevId: 320074267
2020-07-02Merge release-20200622.1-59-g6c099d830 (automated)gVisor bot
2020-07-01Update preadv2/pwritev2 flag handling in vfs2.Dean Deng
We do not support RWF_SYNC/RWF_DSYNC and probably shouldn't silently accept them, since the user may incorrectly believe that we are synchronizing I/O. Remove the pwritev2 test verifying that we support these flags. gvisor.dev/issue/2601 is the tracking bug for deciding which RWF_.* flags we need and supporting them. Updates #2923, #2601. PiperOrigin-RevId: 319351286
2020-07-02Merge release-20200622.1-57-g52b44719d (automated)gVisor bot
2020-07-01[vfs2][gofer] Update file size to 0 on O_TRUNCAyush Ranjan
Some Open:TruncateXxx syscall tests were failing because the file size was not being updated when the file was opened with O_TRUNC. Fixes Truncate tests in test/syscalls:open_test_runsc_ptrace_vfs2. Updates #2923 PiperOrigin-RevId: 319340127
2020-07-01Merge release-20200622.1-52-g6a90c88b9 (automated)gVisor bot
2020-07-01Port fallocate to VFS2.Zach Koopmans
PiperOrigin-RevId: 319283715
2020-07-01Merge release-20200622.1-45-g20d571b0c (automated)gVisor bot
2020-06-30Allow O_DIRECT on vfs2 tmpfs files.Dean Deng
Updates #2923. PiperOrigin-RevId: 319153792
2020-06-27Merge release-20200622.1-38-g02d552d07 (automated)gVisor bot
2020-06-27Support sticky bit in vfs2.Dean Deng
Updates #2923. PiperOrigin-RevId: 318648128