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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
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Fixes php runtime test ext/standard/tests/file/readfile_basic.phpt
Fixes #3516
fsgofers only want the access mode in the OpenFlags passed to Create(). If more
flags are supplied (like O_APPEND in this case), read/write from that fd will
fail with EBADF. See runsc/fsgofer/fsgofer.go:WriteAt()
VFS2 was providing more than just access modes. So filtering the flags using
p9.OpenFlagsModeMask == linux.O_ACCMODE fixes the issue.
Gofer in VFS1 also only extracts the access mode flags while making the create
RPC. See pkg/sentry/fs/gofer/path.go:Create()
Even in VFS2, when we open a handle, we extract out only the access mode flags
+ O_TRUNC.
See third_party/gvisor/pkg/sentry/fsimpl/gofer/handle.go:openHandle()
Added a test for this.
PiperOrigin-RevId: 326574829
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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
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Helps in fixing open syscall tests: AppendConcurrentWrite and AppendOnly.
We also now update the file size for seekable special files (regular files)
which we were not doing earlier.
Updates #2923
PiperOrigin-RevId: 322670843
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Updates #2923.
PiperOrigin-RevId: 317700049
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b/36576592 calls out an edge case previously not supported
by HostFS. HostFS is currently being removed, meaning gVisor
supports this feature. Simply add the test to open_test.
PiperOrigin-RevId: 314610226
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gofer operations accumulate dentries touched in a slice to call
checkCachingLocked on them when the operation is over. In case
the same dentry is touched multiple times during the operation,
checkCachingLocked, and consequently destroyLocked, may be called
more than once for the same dentry.
Updates #1198
PiperOrigin-RevId: 305276819
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PiperOrigin-RevId: 290846481
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PiperOrigin-RevId: 290840370
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It was possible to panic the sentry by opening a cache revalidating folder with
O_TRUNC|O_CREAT.
Avoids breaking php tests.
PiperOrigin-RevId: 280533213
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This was accidentally introduced in 31f05d5d4f62c4cd4fe3b95b333d0130aae4b2c1.
Fixes #788.
PiperOrigin-RevId: 266462843
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For files with O_APPEND, a file write operation gets a file size and uses it as
offset to call an inode write operation. This means that all other operations
which can change a file size should be blocked while the write operation doesn't
complete.
PiperOrigin-RevId: 254873771
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Based on the guidelines at
https://opensource.google.com/docs/releasing/authors/.
1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./'
2. Manual fixup of "Google Inc" references.
3. Add AUTHORS file. Authors may request to be added to this file.
4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS.
Fixes #209
PiperOrigin-RevId: 245823212
Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
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PiperOrigin-RevId: 245818639
Change-Id: I03703ef0fb9b6675955637b9fe2776204c545789
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Tests using DisableSave because a portion of the test is *incompatible*
with S/R clearly cannot use random S/R, as the saves may occur in the
DisableSave critical section.
Most such tests already have NoRandomSave. Add it to the rest.
PiperOrigin-RevId: 236914708
Change-Id: Iee1cf044cfa7cb8d5aba21ddc130926218210c48
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PiperOrigin-RevId: 224886231
Change-Id: I0fccb4d994601739d8b16b1d4e6b31f40297fb22
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