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This fixes a use-after-free in fuse.DeviceFD.Release.
PiperOrigin-RevId: 332394146
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This constant is used to represent int32 stored in file xattrs. The
integers are stored as strings there, so the real size should be the
string size (number of digits) instead of an int size (4 bytes).
PiperOrigin-RevId: 332353217
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PiperOrigin-RevId: 332340342
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This change includes overlay, special regular gofer files, and hostfs.
Fixes #3589.
PiperOrigin-RevId: 332330860
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PiperOrigin-RevId: 332122081
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OpenAt() for verity fs is implemented by opening both the target file or
directory and the corresponding Merkle tree file in the underlying file
system. Generally they are only open for read. In allowRuntimeEnable
mode, the Merkle tree file is also open for write.
PiperOrigin-RevId: 332116423
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PRead is implemented by read from the underlying file in blocks, and
verify each block. The verified contents are saved into the output
buffer.
PiperOrigin-RevId: 332092267
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fix #3956
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fix #3963
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copylocks: directory.go:34:7: Allocate passes lock by value:
fuse/fuse.directoryFD contains fuse/fuse.fileDescription contains
pkg/sentry/vfs/vfs.FileDescription contains pkg/sync/sync.Mutex
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Fixes #3696
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This change implements Release for the FUSE filesystem
and expected behaviors of the FUSE devices.
It includes several checks for aborted connection
in the path for making a request and a function
to abort all the ongoing FUSE requests in order.
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This commit fixes the potential unexpected errors
of original handling of FUSE_RELEASE responses while
keep the same behavior (ignoring any reply).
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This change adds bookkeeping variables for the
FUSE request. With them, old insecure confusing
code we used to process async requests is replaced
by new clear compiling ones. Future code can take
advantage of them to have better control of each
requests.
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This change decouples the code that is weakly
tied to the connection struct from connection.go,
rename variables and files with more meaningful choices,
adds detailed comments, explains lock orders,
and adds other minor improvement to make
the existing FUSE code more readable and
more organized.
Purpose is to avoid too much code in one file
and provide better structure for the
future commits.
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This commit implements FUSE_SETATTR command. When a system call modifies
the metadata of a regular file or a folder by chown(2), chmod(2),
truncate(2), utime(2), or utimes(2), they should be translated to
corresponding FUSE_SETATTR command and sent to the FUSE server.
Fixes #3332
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According to Linux 4.4's FUSE behavior, the flags and fh attributes in
FUSE_GETATTR are only used in read, write, and lseek. fstat(2) doesn't
use them either. Add tests to ensure the requests sent from FUSE module
are consistent with Linux's.
Updates #3655
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This commit adds basic write(2) support for FUSE.
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FUSE_CREATE is called when issuing creat(2) or open(2) with O_CREAT. It
creates a new file on the FUSE filesystem.
Fixes #3825
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This change removes the unnecessary loop and avoids
the recursive call. It also fixes minor bugs in this
function.
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This commit removes unused marshalling functions in linux abi package
and moves self-defined FUSEInitRes wrapper to fuse package.
Updates #3707
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The fuse_init_out struct changes in different FUSE kernel versions. A
FUSE server may implement older versions of fuse_init_out, but they
share common attributes from the beginning. Implement variable-length
marshallable interface to support older versions of ABI.
Fixes #3707
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