Age | Commit message (Collapse) | Author |
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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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readdir_test.cc:134:24: error: variable length arrays are a C99 feature [-Werror,-Wvla-extension]
char readdir_payload[readdir_payload_size];
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test/fuse/benchmark/read_benchmark.cc:34: Failure
Expected: (fuse_prefix) != (nullptr), actual: NULL vs (nullptr)
external/com_google_benchmark/src/benchmark_runner.cc:120: RunInThread:
Check `st.iterations() >= st.max_iterations' failed. Benchmark returned
before State::KeepRunning() returned false!
--- FAIL: Benchmarks_BM_Read/262144/real_time (0.29s)
runner.go:502: test "Benchmarks.BM_Read/262144/real_time" failed
with error exit status 134, want nil
FAIL
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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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This change adds the following:
- Add support for containerizing syscall tests for FUSE
- Mount tmpfs in the container so we can run benchmarks against it
- Run the server in a background process
- benchmarks for fuse syscall
Co-authored-by: Ridwan Sharif <ridwanmsharif@google.com>
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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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kernfs uses inode.Getlink to resolve symlink when look up paths.
Updates #3452
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According to readdir(3), the offset attribute in struct dirent is the
offset to the next dirent instead of the offset of itself. Send the
successive FUSE_READDIR requests with the offset retrieved from the last
entry.
Updates #3255
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Until #3698 is resolved, this change is needed to ensure we're not
corrupting memory anywhere.
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Fixes #3255.
This change adds support for IterDirents. You can now use `ls` in
the FUSE sandbox.
Co-authored-by: Craig Chi <craigchi@google.com>
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Fixes #3587
Co-authored-by: Craig Chi <craigchi@google.com>
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Fixes #3206
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Fixes #3392
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Fixes #3316
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Fixes #3452
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Fixes #3492
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Fixes #3314
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Fixes #3174
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Fixes #3231
Co-authored-by: Boyuan He <heboyuan@google.com>
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Original FUSE integration test has limited capabilities. To test more
situations, the new integration test framework introduces a protocol
to communicate between testing thread and the FUSE server. In summary,
this change includes:
1. Remove CompareResult() and break SetExpected() into
SetServerResponse() and GetServerActualRequest(). We no longer set
up an expected request because we want to retrieve the actual FUSE
request made to the FUSE server and check in the testing thread.
2. Declare a serial buffer data structure to save the received requests
and expected responses sequentially. The data structure contains a
cursor to indicate the progress of accessing. This change makes
sequential SetServerResponse() and GetServerActualRequest() possible.
3. Replace 2 single directional pipes with 1 bi-directional socketpair.
A protocol which starts with FuseTestCmd is used between the testing
thread and the FUSE server to provide various functionality.
Fixes #3405
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CopyContext is a better name for the interface because from
go-marshal's perspective, the interface has nothing to do with a
task. A kernel.Task happens to implement the interface, but so can
other things like MemoryManager and IO sequences.
PiperOrigin-RevId: 331959678
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PiperOrigin-RevId: 331940975
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OCI configuration includes support for specifying seccomp filters. In runc,
these filter configurations are converted into seccomp BPF programs and loaded
into the kernel via libseccomp. runsc needs to be a static binary so, for
runsc, we cannot rely on a C library and need to implement the functionality
in Go.
The generator added here implements basic support for taking OCI seccomp
configuration and converting it into a seccomp BPF program with the same
behavior as a program generated by libseccomp.
- New conditional operations were added to pkg/seccomp to support operations
available in OCI.
- AllowAny and AllowValue were renamed to MatchAny and EqualTo to better reflect
that syscalls matching the conditionals result in the provided action not
simply SCMP_RET_ALLOW.
- BuildProgram in pkg/seccomp no longer panics if provided an empty list of
rules. It now builds a program with the architecture sanity check only.
- ProgramBuilder now allows adding labels that are unused. However, backwards
jumps are still not permitted.
Fixes #510
PiperOrigin-RevId: 331938697
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PiperOrigin-RevId: 331905347
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- It's very difficult to prevent returnErrnoAsError and returnError from being
optimized out. Instead, replace BenchmarkReturn* with BenchmarkAssign*, which
store to globalError.
- Compare to a non-nil globalError in BenchmarkCompare* and BenchmarkSwitch*.
New results:
BenchmarkAssignErrno
BenchmarkAssignErrno-12 1000000000 0.615 ns/op
BenchmarkAssignError
BenchmarkAssignError-12 1000000000 0.626 ns/op
BenchmarkCompareErrno
BenchmarkCompareErrno-12 1000000000 0.522 ns/op
BenchmarkCompareError
BenchmarkCompareError-12 1000000000 3.54 ns/op
BenchmarkSwitchErrno
BenchmarkSwitchErrno-12 1000000000 1.45 ns/op
BenchmarkSwitchError
BenchmarkSwitchError-12 536315757 10.9 ns/op
PiperOrigin-RevId: 331875387
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This is to allow the syserror package to depend on the context package in a
future change.
PiperOrigin-RevId: 331866252
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Make setting STATX_SIZE a no-op, if it is valid for the given permissions and
file type.
Also update proc tests, which were overfitted before.
Fixes #3842.
Updates #1193.
PiperOrigin-RevId: 331861087
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The refactor aims to simplify the package, by replacing the Go channel with a
PacketBuffer slice.
This code will be reused by tests for IPv6 fragmentation.
PiperOrigin-RevId: 331860411
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This is needed for SO_LINGER, where close() is blocked for linger timeout and
we are holding the FDTable lock for the entire timeout which will not allow
us to create/delete other fds. We have to release the locks and then drop the
fds.
PiperOrigin-RevId: 331844185
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