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2019-12-04Merge release-20191114.0-57-gcf7f27c (automated)gVisor bot
2019-12-03net/udp: return a local route address as the bound-to addressAndrei Vagin
If the socket is bound to ANY and connected to a loopback address, getsockname() has to return the loopback address. Without this fix, getsockname() returns ANY. PiperOrigin-RevId: 283647781
2019-12-03Merge release-20191114.0-56-g0354071 (automated)gVisor bot
2019-12-03Fix printing /proc/[pid]/io for /proc/[pid]/task/[tid]/io.Zach Koopmans
PiperOrigin-RevId: 283630669
2019-12-03Merge release-20191114.0-55-g27e2c4d (automated)gVisor bot
2019-12-03Fix panic due to early transition to Closed.Bhasker Hariharan
The code in rcv.consumeSegment incorrectly transitions to CLOSED state from LAST-ACK before the final ACK for the FIN. Further if receiving a segment changes a socket to a closed state then we should not invoke the sender as the socket is now closed and sending any segments is incorrect. PiperOrigin-RevId: 283625300
2019-12-03Merge release-20191114.0-54-g4364375 (automated)gVisor bot
2019-12-03strace: don't create a slice with a negative valueAndrei Vagin
PiperOrigin-RevId: 283613824
2019-12-03Merge release-20191114.0-53-g154dcde (automated)gVisor bot
2019-12-03Remove watchdog TODOFabricio Voznika
I have not seen a false positive stuck task yet. Biggest offender was whitelistfs which is going away. PiperOrigin-RevId: 283613064
2019-12-03Point TODOs to gvisor.devFabricio Voznika
PiperOrigin-RevId: 283610781
2019-12-03Remove TODO for obsolete bug.Zach Koopmans
PiperOrigin-RevId: 283571456
2019-12-03Merge release-20191114.0-49-g19b2d99 (automated)gVisor bot
2019-12-03Support IP_TOS and IPV6_TCLASS socket options for hostinet sockets.Dean Deng
There are two potential ways of sending a TOS byte with outgoing packets: including a control message in sendmsg, or setting the IP_TOS/IPV6_TCLASS socket options (for IPV4 and IPV6 respectively). This change lets hostinet support the latter. Fixes #1188 PiperOrigin-RevId: 283550925
2019-12-02Merge release-20191114.0-45-g9194aab (automated)gVisor bot
2019-12-02Support sending IP_TOS and IPV6_TCLASS control messages with hostinet sockets.Dean Deng
There are two potential ways of sending a TOS byte with outgoing packets: including a control message in sendmsg, or setting the IP_TOS/IPV6_TCLASS socket options (for IPV4 and IPV6 respectively). This change lets hostinet support the former. PiperOrigin-RevId: 283346737
2019-11-28Test handling segments on completed but not yet accepted TCP connectionsGhanan Gowripalan
This change does not introduce any new features, or modify existing ones. This change tests handling TCP segments right away for connections that were completed from a listening endpoint. PiperOrigin-RevId: 282986457
2019-11-28Merge release-20191114.0-41-g684f757 (automated)gVisor bot
2019-11-27Add support for receiving TOS and TCLASS control messages in hostinet.Dean Deng
This involves allowing getsockopt/setsockopt for the corresponding socket options, as well as allowing hostinet to process control messages received from the actual recvmsg syscall. PiperOrigin-RevId: 282851425
2019-11-27Merge release-20191114.0-39-g20279c3 (automated)gVisor bot
2019-11-26Allow open(O_TRUNC) and (f)truncate for proc files.Ian Lewis
This allows writable proc and devices files to be opened with O_CREAT|O_TRUNC. This is encountered most frequently when interacting with proc or devices files via the command line. e.g. $ echo 8192 1048576 4194304 > /proc/sys/net/ipv4/tcp_rmem Also adds a test to test the behavior of open(O_TRUNC), truncate, and ftruncate on named pipes. Fixes #1116 PiperOrigin-RevId: 282677425
2019-11-27Merge release-20191114.0-36-g519ceab (automated)gVisor bot
2019-11-26Mark execveat as supported for linux64_arm64.Dean Deng
PiperOrigin-RevId: 282667122
2019-11-26Merge release-20191114.0-35-gb72e1b3 (automated)gVisor bot
2019-11-25Minor VFS2 interface changes.Jamie Liu
- Remove the Filesystem argument from DentryImpl.*Ref(); in general DentryImpls that need the Filesystem for reference counting will probably also need it for other interface methods that don't plumb Filesystem, so it's easier to just store a pointer to the filesystem in the DentryImpl. - Add a pointer to the VirtualFilesystem to Filesystem, which is needed by the gofer client to disown dentries for cache eviction triggered by dentry reference count changes. - Rename FilesystemType.NewFilesystem to GetFilesystem; in some cases (e.g. sysfs, cgroupfs) it's much cleaner for there to be only one Filesystem that is used by all mounts, and in at least one case (devtmpfs) it's visibly incorrect not to do so, so NewFilesystem doesn't always actually create and return a *new* Filesystem. - Require callers of FileDescription.Init() to increment Mount/Dentry references. This is because the gofer client may, in the OpenAt() path, take a reference on a dentry with 0 references, which is safe due to synchronization that is outside the scope of this CL, and it would be safer to still have its implementation of DentryImpl.IncRef() check for an increment for 0 references in other cases. - Add FileDescription.TryIncRef. This is used by the gofer client to take references on "special file descriptions" (FDs for files such as pipes, sockets, and devices), which use per-FD handles (fids) instead of dentry-shared handles, for sync() and syncfs(). PiperOrigin-RevId: 282473364
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
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