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2020-09-11Merge release-20200810.0-237-g8d0f76dda (automated)gVisor bot
2020-09-11fuse_open: add padding to open out requestBoyuan He
2020-09-11Merge release-20200907.0-36-g1f4fb817c (automated)gVisor bot
2020-09-11Merge release-20200810.0-236-gb8bee78d0 (automated)gVisor bot
2020-09-11Implement FUSE_UNLINKboyuan-he
Fixes #3696
2020-09-11Fix comments of TODO issues.Craig Chi
2020-09-11Add comments for exported attributesCraig Chi
2020-09-11Implement 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
2020-09-11Add 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
2020-09-11Implement FUSE_WRITEJinmou Li
This commit adds basic write(2) support for FUSE.
2020-09-11Implement FUSE_CREATECraig Chi
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
2020-09-11Downgrade FUSE minor version support and clarify commentsjinmouil
2020-09-11fuse: remove unused marshalling functionsCraig Chi
This commit removes unused marshalling functions in linux abi package and moves self-defined FUSEInitRes wrapper to fuse package. Updates #3707
2020-09-11Support multiple FUSE kernel versions of FUSE_INIT response structCraig Chi
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
2020-09-11fuse: use safe go_marshal API for FUSERidwan Sharif
Until #3698 is resolved, this change is needed to ensure we're not corrupting memory anywhere.
2020-09-11fuse: Implement IterDirents for directory file descriptionRidwan Sharif
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>
2020-09-11Implement FUSE_RMDIRRidwan Sharif
Fixes #3587 Co-authored-by: Craig Chi <craigchi@google.com>
2020-09-11Implement FUSE_READJinmou Li
Fixes #3206
2020-09-11Implement FUSE_MKDIRBoyuan He
Fixes #3392
2020-09-11Implement FUSE_READLINKBoyuan He
Fixes #3316
2020-09-11Implement FUSE_SYMLINKBoyuan He
Fixes #3452
2020-09-11Implement FUSE_MKNODBoyuan He
Fixes #3492
2020-09-11Implement FUSE_RELEASE/RELEASEDIRBoyuan He
Fixes #3314
2020-09-11Implement FUSE_OPEN/OPENDIRBoyuan He
Fixes #3174
2020-09-11Implement FUSE_LOOKUPAndrei Vagin
Fixes #3231 Co-authored-by: Boyuan He <heboyuan@google.com>
2020-09-11Merge release-20200907.0-35-g325f7036b (automated)gVisor bot
2020-09-11Merge release-20200907.0-34-g490e5c83b (automated)gVisor bot
2020-09-11Merge release-20200907.0-33-g9a5635eb1 (automated)gVisor bot
2020-09-11Merge release-20200907.0-32-g831ab2dd9 (automated)gVisor bot
2020-09-11Merge release-20200907.0-31-g964447c8c (automated)gVisor bot
2020-09-10Merge release-20200818.0-154-g365545855 (automated)gVisor bot
2020-09-10Merge release-20200818.0-153-g14e0eb6e0 (automated)gVisor bot
2020-09-10Merge release-20200818.0-152-g7275f293d (automated)gVisor bot
2020-09-10Merge release-20200818.0-150-g50c99a86d (automated)gVisor bot
2020-09-10Merge release-20200818.0-149-g9a003835f (automated)gVisor bot
2020-09-10Merge release-20200818.0-148-g1ab097b08 (automated)gVisor bot
2020-09-10Merge release-20200818.0-147-g644ac7b6b (automated)gVisor bot
2020-09-10Merge release-20200818.0-146-g2c7df1a9a (automated)gVisor bot
2020-09-10Merge release-20200818.0-145-gf94995114 (automated)gVisor bot
2020-09-10Merge release-20200810.0-200-gc7d09207e (automated)gVisor bot
2020-09-09Implement ioctl with enable veritygVisor bot
ioctl with FS_IOC_ENABLE_VERITY is added to verity file system to enable a file as verity file. For a file, a Merkle tree is built with its data. For a directory, a Merkle tree is built with the root hashes of its children. PiperOrigin-RevId: 330604368
2020-09-09Refactor tty codebase to use master-replica terminology.Ayush Ranjan
Updates #2972 PiperOrigin-RevId: 329584905
2020-09-09[go-marshal] Enable auto-marshalling for fs/tty.Ayush Ranjan
PiperOrigin-RevId: 329564614
2020-09-09Implement StatFS for various VFS2 filesystems.Rahat Mahmood
This mainly involved enabling kernfs' client filesystems to provide a StatFS implementation. Fixes #3411, #3515. PiperOrigin-RevId: 329009864
2020-09-09ip6tables: (de)serialize ip6tables structsKevin Krakauer
More implementation+testing to follow. #3549. PiperOrigin-RevId: 328770160
2020-09-09tmpfs: Allow xattrs in the trusted namespace if creds has CAP_SYS_ADMIN.Nicolas Lacasse
This is needed to support the overlay opaque attribute. PiperOrigin-RevId: 328552985
2020-09-09Return non-zero size for tmpfs statfs(2).Jamie Liu
This does not implement accepting or enforcing any size limit, which will be more complex and has performance implications; it just returns a fixed non-zero size. Updates #1936 PiperOrigin-RevId: 328428588
2020-09-09Expose basic coverage information to userspace through kcov interface.Dean Deng
In Linux, a kernel configuration is set that compiles the kernel with a custom function that is called at the beginning of every basic block, which updates the memory-mapped coverage information. The Go coverage tool does not allow us to inject arbitrary instructions into basic blocks, but it does provide data that we can convert to a kcov-like format and transfer them to userspace through a memory mapping. Note that this is not a strict implementation of kcov, which is especially tricky to do because we do not have the same coverage tools available in Go that that are available for the actual Linux kernel. In Linux, a kernel configuration is set that compiles the kernel with a custom function that is called at the beginning of every basic block to write program counters to the kcov memory mapping. In Go, however, coverage tools only give us a count of basic blocks as they are executed. Every time we return to userspace, we collect the coverage information and write out PCs for each block that was executed, providing userspace with the illusion that the kcov data is always up to date. For convenience, we also generate a unique synthetic PC for each block instead of using actual PCs. Finally, we do not provide thread-specific coverage data (each kcov instance only contains PCs executed by the thread owning it); instead, we will supply data for any file specified by -- instrumentation_filter. Also, fix issue in nogo that was causing pkg/coverage:coverage_nogo compilation to fail. PiperOrigin-RevId: 328426526
2020-09-09[go-marshal] Enable auto-marshalling for host tty.Ayush Ranjan
PiperOrigin-RevId: 328415633
2020-09-09Merge release-20200818.0-143-gaead623d9 (automated)gVisor bot
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