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2020-01-27Standardize on tools directory.Adin Scannell
PiperOrigin-RevId: 291745021
2020-01-24Add support for device special files to VFS2 tmpfs.Jamie Liu
PiperOrigin-RevId: 291471892
2020-01-24Merge release-20200115.0-98-gd135b5a (automated)gVisor bot
2020-01-24Add anonymous device number allocation to VFS2.Jamie Liu
Note that in VFS2, filesystem device numbers are per-vfs.FilesystemImpl rather than global, avoiding the need for a "registry" type to handle save/restore. (This is more consistent with Linux anyway: compare e.g. mm/shmem.c:shmem_mount() => fs/super.c:mount_nodev() => (indirectly) set_anon_super().) PiperOrigin-RevId: 291425193
2020-01-24Merge release-20200115.0-96-g390bb9c (automated)gVisor bot
2020-01-24Ignore external SIGURGMichael Pratt
Go 1.14+ sends SIGURG to Ms to attempt asynchronous preemption of a G. Since it can't guarantee that a SIGURG is only related to preemption, it continues to forward them to signal.Notify (see runtime.sighandler). We should ignore these signals, as applications shouldn't receive them. Note that this means that truly external SIGURG can no longer be sent to the application (as with SIGCHLD). PiperOrigin-RevId: 291415357
2020-01-24Merge release-20200115.0-94-g3db3173 (automated)gVisor bot
2020-01-23Remove epoll entry from map when dropping it.Nicolas Lacasse
This pattern (delete from map when dropping) is also used in epoll.RemoveEntry, and seems like generally a good idea. PiperOrigin-RevId: 291268208
2020-01-23Merge release-20200115.0-93-g3d10edc (automated)gVisor bot
2020-01-23Merge pull request #1617 from kevinGC:iptables-write-filter-protogVisor bot
PiperOrigin-RevId: 291249314
2020-01-23Merge release-20200115.0-81-g7a79715 (automated)gVisor bot
2020-01-23Check for EINTR from KVM_CREATE_VMMichael Pratt
The kernel may return EINTR from: kvm_create_vm kvm_init_mmu_notifier mmu_notifier_register do_mmu_notifier_register mm_take_all_locks Go 1.14's preemptive scheduling signals make hitting this much more likely. PiperOrigin-RevId: 291212669
2020-01-22De-duplicate common test functionality for VFS2 filesystems.Rahat Mahmood
PiperOrigin-RevId: 291041576
2020-01-22Merge release-20200115.0-72-g5ab1213 (automated)gVisor bot
2020-01-22Move VFS2 handling of FD readability/writability to vfs.FileDescription.Jamie Liu
PiperOrigin-RevId: 291006713
2020-01-22Merge release-20200115.0-71-g1599923 (automated)gVisor bot
2020-01-22Merge release-20200115.0-69-g6a59e7f (automated)gVisor bot
2020-01-21Rename DowngradableRWMutex to RWmutex.Ian Gudger
Also renames TMutex to Mutex. These custom mutexes aren't any worse than the standard library versions (same code), so having both seems redundant. PiperOrigin-RevId: 290873587
2020-01-22Merge release-20200115.0-65-gf6225b1 (automated)gVisor bot
2020-01-21Merge pull request #1609 from xiaobo55x:unamegVisor bot
PiperOrigin-RevId: 290849438
2020-01-22Merge release-20200115.0-58-gb3405a7 (automated)gVisor bot
2020-01-21Merge pull request #1275 from lubinszARM:pr_ring0_5gVisor bot
PiperOrigin-RevId: 290839263
2020-01-21Merge release-20200115.0-56-g7e6fbc6 (automated)gVisor bot
2020-01-21Add a new TCP stat for current open connections.Mithun Iyer
Such a stat accounts for all connections that are currently established and not yet transitioned to close state. Also fix bug in double increment of CurrentEstablished stat. Fixes #1579 PiperOrigin-RevId: 290827365
2020-01-21Implement sysfs.Rahat Mahmood
PiperOrigin-RevId: 290822487
2020-01-21Merge release-20200115.0-52-g16694ad (automated)gVisor bot
2020-01-21Merge pull request #1274 from lubinszARM:pr_ring0_4gVisor bot
PiperOrigin-RevId: 290811598
2020-01-21More little fixes.Kevin Krakauer
2020-01-21Merge release-20200115.0-50-gd46c397 (automated)gVisor bot
2020-01-21Fixing stuffKevin Krakauer
2020-01-21Add line break to /proc/net filesFabricio Voznika
Some files were missing the last line break. PiperOrigin-RevId: 290808898
2020-01-21Merge branch 'master' into iptables-write-filter-protoKevin Krakauer
2020-01-21Merge release-20200115.0-49-g2ba6198 (automated)gVisor bot
2020-01-21Add syscalls for lgetxattr, fgetxattr, lsetxattr, and fsetxattr.Dean Deng
Note that these simply will use the same logic as getxattr and setxattr, which is not yet implemented for most filesystems. PiperOrigin-RevId: 290800960
2020-01-21Merge release-20200115.0-48-g5f82f09 (automated)gVisor bot
2020-01-21Merge pull request #1558 from kevinGC:iptables-write-input-dropgVisor bot
PiperOrigin-RevId: 290793754
2020-01-20Enable uname syscall support on arm64.Haibo Xu
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I206f38416a64d7c6a8531d8eb305c6ea239616b8
2020-01-18Merge release-20200115.0-34-g1040159 (automated)gVisor bot
2020-01-18Include the cgroup name in the superblock options in /proc/self/mountinfo.Nicolas Lacasse
Java 11 parses /proc/self/mountinfo for cgroup information. Java 11.0.4 uses the mount path to determine what cgroups existed, but Java 11.0.5 reads the cgroup names from the superblock options. This CL adds the cgroup name to the superblock options if the filesystem type is "cgroup". Since gVisor doesn't actually support cgroups yet, we just infer the cgroup name from the path. PiperOrigin-RevId: 290434323
2020-01-18Merge release-20200115.0-33-g47d8525 (automated)gVisor bot
2020-01-17Filter out received packets with a local source IP address.Eyal Soha
CERT Advisory CA-96.21 III. Solution advises that devices drop packets which could not have correctly arrived on the wire, such as receiving a packet where the source IP address is owned by the device that sent it. Fixes #1507 PiperOrigin-RevId: 290378240
2020-01-17Merge release-20200115.0-32-gf1a5178 (automated)gVisor bot
2020-01-17Fix data race in MountNamespace.resolve.Nicolas Lacasse
We must hold fs.renameMu to access Dirent.parent. PiperOrigin-RevId: 290340804
2020-01-17Merge release-20200115.0-29-g80d0f93 (automated)gVisor bot
2020-01-17Fix data race in tty.queue.readableSize.Nicolas Lacasse
We were setting queue.readable without holding the lock. PiperOrigin-RevId: 290306922
2020-01-17Add /proc/[pid]/cgroups fileFabricio Voznika
Updates #1195 PiperOrigin-RevId: 290298266
2020-01-17Add /proc/net/* filesFabricio Voznika
Updates #1195 PiperOrigin-RevId: 290285420
2020-01-17Merge release-20200115.0-26-gacf2d6d (automated)gVisor bot
2020-01-17Enable stat syscall support on arm64.Haibo Xu
x86 and arm64 use a different stat struct in Linux kernel, so the stat() syscall implementation has to handle the file stat data separately. Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: If3986e915a667362257a54e7fbbcc1fe18951015 COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/1493 from xiaobo55x:stat f15a216d9297eb9a96d2c483d396a9919145d7fa PiperOrigin-RevId: 290274287
2020-01-17Merge release-20200115.0-18-g345df7c (automated)gVisor bot
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