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2019-11-25Merge release-20191114.0-34-g128948d (automated)gVisor bot
2019-11-25Implement basic umounting for vfs2.Jamie Liu
This is required to test filesystems with a non-trivial implementation of FilesystemImpl.Release(). Propagation isn't handled yet, and umount isn't yet plumbed out to VirtualFilesystem.UmountAt(), but otherwise the implementation of umount is believed to be correct. - Move entering mountTable.seq writer critical sections to callers of mountTable.{insert,remove}Seqed. This is required since umount(2) must ensure that no new references are taken on the candidate mount after checking that it isn't busy, which is only possible by entering a vfs.mountTable.seq writer critical section before the check and remaining in it until after VFS.umountRecursiveLocked() is complete. (Linux does the same thing: fs/namespace.c:do_umount() => lock_mount_hash(), fs/pnode.c:propagate_mount_busy(), umount_tree(), unlock_mount_hash().) - It's not possible for dentry deletion to umount while only holding VFS.mountMu for reading, but it's also very unappealing to hold VFS.mountMu exclusively around e.g. gofer unlink RPCs. Introduce dentry.mu to avoid these problems. This means that VFS.mountMu is never acquired for reading, so change it to a sync.Mutex. PiperOrigin-RevId: 282444343
2019-11-25Internal change.Adin Scannell
PiperOrigin-RevId: 282396322
2019-11-25Merge release-20191114.0-30-g0416c24 (automated)gVisor bot
2019-11-25Merge pull request #1176 from xiaobo55x:runsc_bootgVisor bot
PiperOrigin-RevId: 282382564
2019-11-25Merge release-20191114.0-28-g1641338 (automated)gVisor bot
2019-11-25Set transport and network headers on outbound packets.Kevin Krakauer
These are necessary for iptables to read and parse headers for packet filtering. PiperOrigin-RevId: 282372811
2019-11-25Merge release-20191114.0-27-g2b1b51f (automated)gVisor bot
2019-11-25Fix panic in sniffer.Kevin Krakauer
Packets written via SOCK_RAW are guaranteed to have network headers, but not transport headers. Check first whether there are enough bytes left in the packet to contain a transport header before attempting to parse it. PiperOrigin-RevId: 282363895
2019-11-23Cleanup visibility.Adin Scannell
PiperOrigin-RevId: 282194656
2019-11-23Merge release-20191114.0-25-gb0a1bbd (automated)gVisor bot
2019-11-22Internal change.Adin Scannell
PiperOrigin-RevId: 282068093
2019-11-22Merge release-20191114.0-23-g8eb6891 (automated)gVisor bot
2019-11-22Store SO_BINDTODEVICE state at bind.Ian Gudger
This allows us to ensure that the correct port reservation is released. Fixes #1217 PiperOrigin-RevId: 282048155
2019-11-22Merge release-20191114.0-22-g9db08c4 (automated)gVisor bot
2019-11-22Use PacketBuffers with GSO.Kevin Krakauer
PiperOrigin-RevId: 282045221
2019-11-22Merge release-20191114.0-21-gf27f38d (automated)gVisor bot
2019-11-22Add segment dequeue check while emptying segment queue.Mithun Iyer
PiperOrigin-RevId: 282023891
2019-11-22Merge release-20191114.0-20-g07635d2 (automated)gVisor bot
2019-11-22enable ring0/pagetables to support arm64lubinszARM
Signed-off-by: Bin Lu <bin.lu@arm.com> COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/891 from lubinszARM:pr_pagetable 2385de75a8662af3ab1ae289dd74dd0e5dcfaf66 PiperOrigin-RevId: 282013224
2019-11-21Merge release-20191114.0-18-gc0f89eb (automated)gVisor bot
2019-11-21Import and structure cleanup.Adin Scannell
PiperOrigin-RevId: 281795269
2019-11-20Merge release-20191114.0-16-g012102e (automated)gVisor bot
2019-11-20Pass OpenTruncate to gofer in Open call when opening file with O_TRUNC.Nicolas Lacasse
Note that the Sentry still calls Truncate() on the file before calling Open. A new p9 version check was added to ensure that the p9 server can handle the the OpenTruncate flag. If not, then the flag is stripped before sending. PiperOrigin-RevId: 281609112
2019-11-19Merge release-20191114.0-15-gef6f936 (automated)gVisor bot
2019-11-18Add vfs.GenericParseMountOptions().Jamie Liu
Equivalent to fs.GenericMountSourceOptions(). PiperOrigin-RevId: 281179287
2019-11-18Merge release-20191114.0-14-g26b3341 (automated)gVisor bot
2019-11-18platform/ptrace: use host.GetCPU instead of the getcpu syscallAndrei Vagin
This should save ~200ns from switchToApp (on ptrace too). // mpratt PiperOrigin-RevId: 281159895
2019-11-18Merge release-20191114.0-13-g235a96c (automated)gVisor bot
2019-11-18Merge pull request #1177 from xiaobo55x:fs_hostgVisor bot
PiperOrigin-RevId: 281112758
2019-11-16Merge release-20191104.0-48-g5107e6b (automated)gVisor bot
2019-11-15Automated rollback of changelist 280594395Bhasker Hariharan
PiperOrigin-RevId: 280763655
2019-11-15Merge release-20191104.0-47-g3e534f2 (automated)gVisor bot
2019-11-15Handle in-flight TCP segments when moving to CLOSE.Mithun Iyer
As we move to CLOSE state from LAST-ACK or TIME-WAIT, ensure that we re-match all in-flight segments to any listening endpoint. Also fix LISTEN state handling of any ACK segments as per RFC793. Fixes #1153 PiperOrigin-RevId: 280703556
2019-11-15Merge release-20191104.0-46-g76039f8 (automated)gVisor bot
2019-11-15Do not set finalizer on p9.ClientFile.Jamie Liu
Aside from the performance hit, there is no guarantee that p9.ClientFile's finalizer runs before the associated p9.Client is closed. PiperOrigin-RevId: 280702509
2019-11-15Merge release-20191104.0-45-g23574b1 (automated)gVisor bot
2019-11-14Fix panic when logging raw packets via sniffer.Kevin Krakauer
Sniffer assumed that outgoing packets have transport headers, but users can write packets via SOCK_RAW with arbitrary transport headers that netstack doesn't know about. We now explicitly check for the presence of network and transport headers before assuming they exist. PiperOrigin-RevId: 280594395
2019-11-15Merge release-20191104.0-44-gaf323eb (automated)gVisor bot
2019-11-14Fix return codes for {get,set}sockopt for some nullptr cases.Ting-Yu Wang
Updates #1092 PiperOrigin-RevId: 280547239
2019-11-15Merge release-20191104.0-43-g339536d (automated)gVisor bot
2019-11-14Check that a file is a regular file with open(O_TRUNC).Kevin Krakauer
It was possible to panic the sentry by opening a cache revalidating folder with O_TRUNC|O_CREAT. Avoids breaking php tests. PiperOrigin-RevId: 280533213
2019-11-14Merge release-20191104.0-41-g9ca15db (automated)gVisor bot
2019-11-14Avoid unnecessary slice allocation in usermem.BytesIO.blocksFromAddrRanges().Jamie Liu
PiperOrigin-RevId: 280507239
2019-11-14Merge release-20191104.0-40-g3f7d937 (automated)gVisor bot
2019-11-14Use PacketBuffers for outgoing packets.Kevin Krakauer
PiperOrigin-RevId: 280455453
2019-11-13Merge release-20191104.0-38-g6dd4c9e (automated)gVisor bot
2019-11-13Fix flaky behaviour during S/R.Bhasker Hariharan
PiperOrigin-RevId: 280280156
2019-11-13Merge release-20191104.0-36-gc2d3dc0 (automated)gVisor bot
2019-11-12Use overlay MountSource when binding socket in overlay.Nicolas Lacasse
PiperOrigin-RevId: 280131840
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