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2020-04-09Merge release-20200323.0-110-g9f87502 (automated)gVisor bot
2020-04-09Remove TODOs from Async IOFabricio Voznika
Block and drain requests in io_destroy(2). Note the reason to create read-only mapping. PiperOrigin-RevId: 305786312
2020-04-09Merge release-20200323.0-100-ga10389e (automated)gVisor bot
2020-04-08splice: cap splice calls to MAX_RW_COUNTAndrei Vagin
The Linux does the same. Reported-by: syzbot+e81716e8956e92e9d56b@syzkaller.appspotmail.com PiperOrigin-RevId: 305625439
2020-04-06Merge release-20200323.0-74-gf332a86 (automated)gVisor bot
2020-04-06Port timerfd to VFS2.Nicolas Lacasse
PiperOrigin-RevId: 305067208
2020-04-01Merge release-20200323.0-45-g840980a (automated)gVisor bot
2020-03-31Implement automated marshalling for slices of Marshallable types.Rahat Mahmood
PiperOrigin-RevId: 304119255
2020-03-25Merge release-20200219.0-228-ge541ebe (automated)gVisor bot
2020-03-25Misc fixes to make stat_test pass (almost)Fabricio Voznika
The only test failing now requires socket which is not available in VFS2 yet. Updates #1198 PiperOrigin-RevId: 302976572
2020-03-23Merge release-20200219.0-217-g6eebaea (automated)gVisor bot
2020-03-23Correctly release taskPathOperation for accessAt.Dean Deng
PiperOrigin-RevId: 302518924
2020-03-16Merge release-20200219.0-184-g2a6c436 (automated)gVisor bot
2020-03-16Enforce file size rlimits in VFS2Fabricio Voznika
Updates #1035 PiperOrigin-RevId: 301255357
2020-03-14Merge release-20200219.0-177-g5e413ca (automated)gVisor bot
2020-03-14Plumb VFS2 imported fds into virtual filesystem.Dean Deng
- When setting up the virtual filesystem, mount a host.filesystem to contain all files that need to be imported. - Make read/preadv syscalls to the host in cases where preadv2 may not be supported yet (likewise for writing). - Make save/restore functions in kernel/kernel.go return early if vfs2 is enabled. PiperOrigin-RevId: 300922353
2020-03-13Merge release-20200219.0-164-g2e38408 (automated)gVisor bot
2020-03-13Implement access/faccessat for VFS2.Dean Deng
Note that the raw faccessat system call does not actually take a flags argument; according to faccessat(2), the glibc wrapper implements the flags by using fstatat(2). Remove the flag argument that we try to extract from vfs1, which would just be a garbage value. Updates #1965 Fixes #2101 PiperOrigin-RevId: 300796067
2020-02-27Merge release-20200219.0-50-g8fb84f7 (automated)gVisor bot
2020-02-26Fix construct of linux.Stat for arm64.Rahat Mahmood
PiperOrigin-RevId: 297494373
2020-02-26Merge release-20200219.0-45-gfba479b (automated)gVisor bot
2020-02-25Fix DATA RACE in fs.MayDelete.Adin Scannell
MayDelete must lock the directory also, otherwise concurrent renames may race. Note that this also changes the methods to be aligned with the actual Remove and RemoveDirectory methods to minimize confusion when reading the code. (It was hard to see that resolution was correct.) PiperOrigin-RevId: 297258304
2020-02-25Merge release-20200219.0-37-g471b15b (automated)gVisor bot
2020-02-25Port most syscalls to VFS2.Jamie Liu
pipe and pipe2 aren't ported, pending a slight rework of pipe FDs for VFS2. mount and umount2 aren't ported out of temporary laziness. access and faccessat need additional FSImpl methods to implement properly, but are stubbed to prevent googletest from CHECK-failing. Other syscalls require additional plumbing. Updates #1623 PiperOrigin-RevId: 297188448
2020-02-20Merge release-20200211.0-55-gd90d714 (automated)gVisor bot
2020-02-20Remove bytes read/written from marshal.Marshallable API.gVisor bot
Users of the API only care about whether the copy in/out succeeds in their entirety, which is already signalled by the returned error. PiperOrigin-RevId: 296297843
2020-02-15Merge release-20200211.0-25-ga5069f8 (automated)gVisor bot
2020-02-14Remove linux.EpollEvent.Fd.gVisor bot
glibc defines struct epoll_event in such a way that epoll_event.data.fd exists. However, the kernel's definition of struct epoll_event makes epoll_event.data an opaque uint64, so naming half of it "fd" just introduces confusion. Remove the Fd field, and make Data a [2]int32 to compensate. Also add required padding to linux.EpollEvent on ARM64. PiperOrigin-RevId: 295250424
2020-02-14Merge release-20200211.0-18-g3c26f5e (automated)gVisor bot
2020-02-14Enable automated marshalling for struct stat.gVisor bot
This requires fixing a few build issues for non-am64 platforms. PiperOrigin-RevId: 295196922
2020-02-14Merge release-20200211.0-17-g4075de1 (automated)gVisor bot
2020-02-14Plumb VFS2 inside the SentrygVisor bot
- Added fsbridge package with interface that can be used to open and read from VFS1 and VFS2 files. - Converted ELF loader to use fsbridge - Added VFS2 types to FSContext - Added vfs.MountNamespace to ThreadGroup Updates #1623 PiperOrigin-RevId: 295183950
2020-02-11Merge release-20200127.0-130-g9be46e5 (automated)gVisor bot
2020-02-10Merge release-20200127.0-117-g475316e (automated)gVisor bot
2020-02-10Refactor getxattr.Dean Deng
Put most of the logic for getxattr in one place for clarity. This simplifies FGetXattr and getXattrFromPath, which are just wrappers for getXattr. PiperOrigin-RevId: 294308332
2020-02-07Merge release-20200127.0-99-g17b9f5e (automated)gVisor bot
2020-02-07Support listxattr and removexattr syscalls.Dean Deng
Note that these are only implemented for tmpfs, and other impls will still return EOPNOTSUPP. PiperOrigin-RevId: 293899385
2020-02-06Merge release-20200127.0-85-g1b6a12a (automated)gVisor bot
2020-02-05Merge release-20200127.0-82-geea0eee (automated)gVisor bot
2020-02-05Disable get/set xattrs until list/remove exist too.Nicolas Lacasse
PiperOrigin-RevId: 293411655
2020-02-04Merge release-20200127.0-65-g95ce8bb (automated)gVisor bot
2020-02-04Merge release-20200127.0-63-g6823b5e (automated)gVisor bot
2020-02-04timer_create(2) should return 0 on successMichael Pratt
The timer ID is copied out to the argument. Fixes #1738 PiperOrigin-RevId: 293210801
2020-01-30Merge release-20200127.0-35-gede8dfa (automated)gVisor bot
2020-01-30Enforce splice offset limitsMichael Pratt
Splice must not allow negative offsets. Writes also must not allow offset + size to overflow int64. Reads are similarly broken, but not just in splice (b/148095030). Reported-by: syzbot+0e1ff0b95fb2859b4190@syzkaller.appspotmail.com PiperOrigin-RevId: 292361208
2020-01-29Merge release-20200115.0-127-g3d046fe (automated)gVisor bot
2020-01-28Changes missing in last submitFabricio Voznika
Updates #1487 Updates #1623 PiperOrigin-RevId: 292040835
2020-01-28Merge release-20200115.0-125-g437c986 (automated)gVisor bot
2020-01-28Add vfs.FileDescription to FD tableFabricio Voznika
FD table now holds both VFS1 and VFS2 types and uses the correct one based on what's set. Parts of this CL are just initial changes (e.g. sys_read.go, runsc/main.go) to serve as a template for the remaining changes. Updates #1487 Updates #1623 PiperOrigin-RevId: 292023223
2020-01-28Merge release-20200115.0-122-gf263801 (automated)gVisor bot
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