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2020-09-17Merge release-20200907.0-128-g8070cc338 (automated)gVisor bot
2020-09-17Merge pull request #3979 from jinmouil:feature/fuse-fixgVisor bot
PiperOrigin-RevId: 332328860
2020-09-17Merge release-20200907.0-126-ga4db85fff (automated)gVisor bot
2020-09-17Return ENOPROTOOPT for all SOL_PACKET options.Bhasker Hariharan
This is required to make tcpdump work. tcpdump falls back to not using things like PACKET_RX_RING if setsockopt returns ENOPROTOOPT. This used to be the case before https://github.com/google/gvisor/commit/6f8fb7e0db2790ff1f5ba835780c03fe245e437f. Fixes #3981 PiperOrigin-RevId: 332326517
2020-09-17Fix kernfs unlinkat and rmdirat incorrect resolved path nameJinmou Li
2020-09-17Merge release-20200907.0-125-gd796b100e (automated)gVisor bot
2020-09-17Merge release-20200907.0-123-gf0b1bd434 (automated)gVisor bot
2020-09-17Merge release-20200907.0-124-gda07e38f7 (automated)gVisor bot
2020-09-17Merge release-20200907.0-122-g51a2fe8eb (automated)gVisor bot
2020-09-17Merge release-20200907.0-121-ga11061d78 (automated)gVisor bot
2020-09-17Merge release-20200907.0-120-gae59e5297 (automated)gVisor bot
2020-09-16Merge pull request #3934 from avagin:feature/fusegVisor bot
PiperOrigin-RevId: 332122081
2020-09-16Merge release-20200907.0-69-g286830855 (automated)gVisor bot
2020-09-16Implement OpenAt() for verity fsChong Cai
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
2020-09-16Merge release-20200907.0-68-g64aae6bbd (automated)gVisor bot
2020-09-16Merge release-20200907.0-67-gb6d165fe9 (automated)gVisor bot
2020-09-16Automated rollback of changelist 329526153Nayana Bidari
PiperOrigin-RevId: 332097286
2020-09-16Merge release-20200907.0-66-g29ce0ad16 (automated)gVisor bot
2020-09-16Bind loopback subnets' lifetime to perm addressGhanan Gowripalan
The lifetime of addreses in a loopback interface's associated subnets should be bound to their respective permanent addresses. This change also fixes a race when the stack attempts to get an IPv4 rereferencedNetworkEndpoint for an address in an associated subnet on a loopback interface. Before this change, the stack would only check if an IPv4 address is contained in an associated subnet while holding a read lock but wouldn't do this same check after releasing the read lock for a write lock to create a temporary address. This may cause the stack to bind the lifetime of the address to a new (temporary) endpoint instead of the associated subnet's permanent address. Test: integration_test.TestLoopbackSubnetLifetimeBoundToAddr PiperOrigin-RevId: 332094719
2020-09-16Merge release-20200907.0-65-g3749e70a6 (automated)gVisor bot
2020-09-16Implement PRead for verity fsChong Cai
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
2020-09-16Merge release-20200907.0-64-g666397c5c (automated)gVisor bot
2020-09-16Gracefully translate unknown errno.Ting-Yu Wang
Neither POSIX.1 nor Linux defines an upperbound for errno. PiperOrigin-RevId: 332085017
2020-09-16Merge release-20200907.0-63-g0356c7ef3 (automated)gVisor bot
2020-09-16Merge release-20200907.0-62-g49857849f (automated)gVisor bot
2020-09-16Merge pull request #3893 from lubinszARM:pr_n1_03gVisor bot
PiperOrigin-RevId: 332069743
2020-09-16Merge release-20200907.0-60-g87c5c0ad2 (automated)gVisor bot
2020-09-16fuse: fix data race in fusefs Release()Jinmou Li
fix #3956
2020-09-16fuse: fix FUSE_RELEASE reply handlingJinmou Li
fix #3963
2020-09-16Update fuse.md design doc with design detailsJinmou Li
2020-09-16Fix FUSE connection control lock ordering and race in unit testJinmou Li
2020-09-16fuse: don't pass lock by valueAndrei Vagin
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
2020-09-16fuse: fix a compile time errorAndrei Vagin
readdir_test.cc:134:24: error: variable length arrays are a C99 feature [-Werror,-Wvla-extension] char readdir_payload[readdir_payload_size];
2020-09-16Revert "fuse: add benchmarking support for FUSE"Andrei Vagin
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
2020-09-16Fix FUSE unit test after vfs interface changeJinmou Li
2020-09-16Fix FUSE go unit test merge conflict mistakeJinmou Li
2020-09-16Receive broadcast packets on interested endpointsGhanan Gowripalan
When a broadcast packet is received by the stack, the packet should be delivered to each endpoint that may be interested in the packet. This includes all any address and specified broadcast address listeners. Test: integration_test.TestReuseAddrAndBroadcast PiperOrigin-RevId: 332060652
2020-09-16fs/fuse: Move the 'marshal' and 'primitive' packages to the 'pkg' directory.Andrei Vagin
2020-09-16fuse_open: add padding to open out requestBoyuan He
2020-09-16Unexport fusefs.inode.nodeIDCraig Chi
2020-09-16Implement FUSE_UNLINKBoyuan He
Fixes #3696
2020-09-16Fix comments of TODO issues.Craig Chi
2020-09-16Add FUSE umount supportJinmou Li
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.
2020-09-16Fix FUSE_RELEASE protocol reply processingJinmou Li
This commit fixes the potential unexpected errors of original handling of FUSE_RELEASE responses while keep the same behavior (ignoring any reply).
2020-09-16Improve FUSE async/noreply call logicJinmou Li
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.
2020-09-16Refactor FUSE connection for readability and structureJinmou Li
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.
2020-09-16Add comments for exported attributesCraig Chi
2020-09-16Implement FUSE_SETATTRCraig Chi
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
2020-09-16Add fh support for revise attr and fstat(2) testCraig Chi
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
2020-09-16Implement FUSE_WRITEJinmou Li
This commit adds basic write(2) support for FUSE.
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