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2020-04-24Merge release-20200323.0-229-gf01f213 (automated)gVisor bot
2020-04-23Enable automated marshalling for mempolicy syscalls.Rahat Mahmood
PiperOrigin-RevId: 308170679
2020-04-23Merge release-20200323.0-226-g93dd471 (automated)gVisor bot
2020-04-23Enable automated marshalling for epoll events.Rahat Mahmood
Ensure we use the correct architecture-specific defintion of epoll event, and use go-marshal for serialization. PiperOrigin-RevId: 308145677
2020-04-22Merge release-20200323.0-210-g5e3596a (automated)gVisor bot
2020-04-21Fix set/getsockopt in vfs2 override.Dean Deng
Updates #1476. PiperOrigin-RevId: 307726055
2020-04-21Merge release-20200323.0-207-g37e01fd (automated)gVisor bot
2020-04-21Misc VFS2 fixesFabricio Voznika
- Fix defer operation ordering in kernfs.Filesystem.AccessAt() - Add AT_NULL entry in proc/pid/auvx - Fix line padding in /proc/pid/maps - Fix linux_dirent serialization for getdents(2) - Remove file creation flags from vfs.FileDescription.statusFlags() Updates #1193, #1035 PiperOrigin-RevId: 307704159
2020-04-21Merge release-20200323.0-198-gc615aaf (automated)gVisor bot
2020-04-17Merge release-20200323.0-182-ge838290 (automated)gVisor bot
2020-04-17prlimit: don't check credentials on selfKevin Krakauer
prlimit was erroneously comparing UIDs and GIDs when getting/setting a process' own limits. From the manpage: To set or get the resources of a process other than itself, the caller must have the CAP_SYS_RESOURCE capability, or the real, effective, and saved set user IDs of the target process must match the real user ID of the caller and the real, effective, and saved set group IDs of the target process must match the real group ID of the caller. PiperOrigin-RevId: 307127266
2020-04-17Merge release-20200323.0-173-gf03996c (automated)gVisor bot
2020-04-16Implement pipe(2) and pipe2(2) for VFS2.Jamie Liu
Updates #1035 PiperOrigin-RevId: 306968644
2020-04-16Merge release-20200323.0-164-g2839981 (automated)gVisor bot
2020-04-16Make ExtractErrno a functionFabricio Voznika
PiperOrigin-RevId: 306891171
2020-04-14Merge release-20200323.0-154-g2dd6384 (automated)gVisor bot
2020-04-14Fix cleanup around socketpair() failure to copy out FDs.Jamie Liu
- Use the fs.File, rather than the vfs.FileDescription, in the VFS1 version. - Check for a nil fs.File/vfs.FileDescription before calling DecRef, which is possible if a racing dup2() or dup3() replaces the file descriptor between when it is installed and when it is returned. (This is not possible in Linux because Linux separates allocation of a file descriptor from binding an allocated file descriptor to a struct file, and dup2/dup3 return EBUSY if asked to replace an allocated but unbound file descriptor.) PiperOrigin-RevId: 306517101
2020-04-14Merge release-20200323.0-153-g52b4b19 (automated)gVisor bot
2020-04-14Pass O_LARGEFILE in syscalls/linux/vfs2.openat.Jamie Liu
Needed for PipeTest_Flags: files opened by open() and openat() get O_LARGEFILE (on architectures with 64-bit off_t), but not FDs created by other syscalls such as pipe(). Updates #1035 PiperOrigin-RevId: 306504788
2020-04-14Merge release-20200323.0-146-g71e6ac3 (automated)gVisor bot
2020-04-13Don't allow read/write when offset+size overflows.Nicolas Lacasse
PiperOrigin-RevId: 306348346
2020-04-13Merge release-20200323.0-136-g5d885d7 (automated)gVisor bot
2020-04-13Port socket-related syscalls to VFS2.Dean Deng
Note that most kinds of sockets are not yet supported in VFS2 (only Unix sockets are partially supported at the moment), so these syscalls will still generally fail. Enabling them allows us to begin running socket tests for VFS2 as more features are ported over. Updates #1476, #1478, #1484, #1485. PiperOrigin-RevId: 306292294
2020-04-13Merge release-20200323.0-133-g445c366 (automated)gVisor bot
2020-04-13Fix VFS2 getdents()/getdents64() alignment.Jamie Liu
PiperOrigin-RevId: 306263615
2020-04-11Merge release-20200323.0-130-gdaf3322 (automated)gVisor bot
2020-04-10Add logging message for noNewPrivileges OCI option.Ian Lewis
noNewPrivileges is ignored if set to false since gVisor assumes that PR_SET_NO_NEW_PRIVS is always enabled. PiperOrigin-RevId: 305991947
2020-04-11Merge release-20200323.0-129-g09ddb5a (automated)gVisor bot
2020-04-10Port extended attributes to VFS2.Dean Deng
As in VFS1, we only support the user.* namespace. Plumbing is added to tmpfs and goferfs. Note that because of the slightly different order of checks between VFS2 and Linux, one of the xattr tests needs to be relaxed slightly. Fixes #2363. PiperOrigin-RevId: 305985121
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
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