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2019-09-27Merge release-20190806.1-203-g8539abc (automated)gVisor bot
2019-09-27Merge pull request #864 from tanjianfeng:fix-861gVisor bot
PiperOrigin-RevId: 271649711
2019-09-27Merge release-20190806.1-201-gabbee56 (automated)gVisor bot
2019-09-27Implement SO_BINDTODEVICE sockoptgVisor bot
PiperOrigin-RevId: 271644926
2019-09-26Merge release-20190806.1-197-g5434926 (automated)gVisor bot
2019-09-26Make raw socket tests pass in environments with or without CAP_NET_RAW.Kevin Krakauer
PiperOrigin-RevId: 271442321
2019-09-25Merge release-20190806.1-195-gdd0e5ee (automated)gVisor bot
2019-09-25Merge pull request #765 from trailofbits:uds_supportgVisor bot
PiperOrigin-RevId: 271235134
2019-09-25Merge release-20190806.1-183-g59ccbb1 (automated)gVisor bot
2019-09-25Remove centralized registration of protocols.Kevin Krakauer
Also removes the need for protocol names. PiperOrigin-RevId: 271186030
2019-09-25Merge release-20190806.1-182-g99c86b8 (automated)gVisor bot
2019-09-25Merge pull request #863 from tanjianfeng:fix-862gVisor bot
PiperOrigin-RevId: 271168948
2019-09-25Merge release-20190806.1-180-g76ff194 (automated)gVisor bot
2019-09-24gvisor: change syscall.RawSyscall to syscall.RawSyscall6 where requiredgVisor bot
Before https://golang.org/cl/173160 syscall.RawSyscall would zero out the last three register arguments to the system call. That no longer happens. For system calls that take more than three arguments, use RawSyscall6 to ensure that we pass zero, not random data, for the additional arguments. PiperOrigin-RevId: 271062527
2019-09-24Merge release-20190806.1-178-g502f8f2 (automated)gVisor bot
2019-09-24Stub out readahead implementation.Adin Scannell
Closes #261 PiperOrigin-RevId: 270973347
2019-09-24Merge release-20190806.1-177-g6704d62 (automated)gVisor bot
2019-09-24Return only primary addresses in Stack.NICInfo()Chris Kuiper
Non-primary addresses are used for endpoints created to accept multicast and broadcast packets, as well as "helper" endpoints (0.0.0.0) that allow sending packets when no proper address has been assigned yet (e.g., for DHCP). These addresses are not real addresses from a user point of view and should not be part of the NICInfo() value. Also see b/127321246 for more info. This switches NICInfo() to call a new NIC.PrimaryAddresses() function. To still allow an option to get all addresses (mostly for testing) I added Stack.GetAllAddresses() and NIC.AllAddresses(). In addition, the return value for GetMainNICAddress() was changed for the case where the NIC has no primary address. Instead of returning an error here, it now returns an empty AddressWithPrefix() value. The rational for this change is that it is a valid case for a NIC to have no primary addresses. Lastly, I refactored the code based on the new additions. PiperOrigin-RevId: 270971764
2019-09-24Merge release-20190806.1-174-gbbaaa1f (automated)gVisor bot
2019-09-24Simplify ICMPRateLimiterTamir Duberstein
https://github.com/golang/time/commit/c4c64ca added SetBurst upstream. PiperOrigin-RevId: 270925077
2019-09-24tty: fix sending SIGTTOU on tty writehenry.tjf
How to reproduce: $ echo "timeout 10 ls" > foo.sh $ chmod +x foo.sh $ ./foo.sh (will hang here for 10 secs, and the output of ls does not show) When "ls" process writes to stdout, it receives SIGTTOU signal, and hangs there. Until "timeout" process timeouts, and kills "ls" process. The expected result is: "ls" writes its output into tty, and terminates immdedately, then "timeout" process receives SIGCHLD and terminates. The reason for this failure is that we missed the check for TOSTOP (if set, background processes will receive the SIGTTOU signal when they do write). We use drivers/tty/n_tty.c:n_tty_write() as a reference. Fixes: #862 Reported-by: chris.zn <chris.zn@antfin.com> Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com> Signed-off-by: chenglang.hy <chenglang.hy@antfin.com>
2019-09-23Add test for concurrent reads and writes.Adin Scannell
PiperOrigin-RevId: 270789146
2019-09-23Merge release-20190806.1-168-g03ee55c (automated)gVisor bot
2019-09-23netstack: convert more socket options to {Set,Get}SockOptIntAndrei Vagin
PiperOrigin-RevId: 270763208
2019-09-23internal BUILD file cleanup.gVisor bot
PiperOrigin-RevId: 270680704
2019-09-20Change vfs.Dirent.Off to NextOff.Jamie Liu
"d_off is the distance from the start of the directory to the start of the next linux_dirent." - getdents(2). PiperOrigin-RevId: 270349685
2019-09-20Merge release-20190806.1-164-g002f1d4 (automated)gVisor bot
2019-09-20Allow waiting for LinkEndpoint worker goroutines to finish.Ian Gudger
Previously, the only safe way to use an fdbased endpoint was to leak the FD. This change makes it possible to safely close the FD. This is the first step towards having stoppable stacks. Updates #837 PiperOrigin-RevId: 270346582
2019-09-20fix set hostnameJianfeng Tan
Previously, when we set hostname: $ strace hostname abc ... sethostname("abc", 3) = -1 ENAMETOOLONG (File name too long) ... According to man 2 sethostname: "The len argument specifies the number of bytes in name. (Thus, name does not require a terminating null byte.)" We wrongly use the CopyStringIn() to check terminating zero byte in the implementation of sethostname syscall. To fix this, we use CopyInBytes() instead. Fixes: #861 Reported-by: chenglang.hy <chenglang.hy@antfin.com> Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>
2019-09-19Fix p9 integration of flipcall.Jamie Liu
- Do not call Rread.SetPayload(flipcall packet window) in p9.channel.recv(). - Ignore EINTR from ppoll() in p9.Client.watch(). - Clean up handling of client socket FD lifetimes so that p9.Client.watch() never ppoll()s a closed FD. - Make p9test.Harness.Finish() call clientSocket.Shutdown() instead of clientSocket.Close() for the same reason. - Rework channel reuse to avoid leaking channels in the following case (suppose we have two channels): sendRecvChannel len(channels) == 2 => idx = 1 inuse[1] = ch0 sendRecvChannel len(channels) == 1 => idx = 0 inuse[0] = ch1 inuse[1] = nil sendRecvChannel len(channels) == 1 => idx = 0 inuse[0] = ch0 inuse[0] = nil inuse[0] == nil => ch0 leaked - Avoid deadlocking p9.Client.watch() by calling channelsWg.Wait() without holding channelsMu. - Bump p9test:client_test size to medium. PiperOrigin-RevId: 270200314
2019-09-19Fix documentation, clean up seccomp filter installation, rename helpers.Robert Tonic
Filter installation has been streamlined and functions renamed. Documentation has been fixed to be standards compliant, and missing documentation added. gofmt has also been applied to modified files.
2019-09-19Merge release-20190806.1-162-g75781ab (automated)gVisor bot
2019-09-19Remove defer from hot path and ensure Atomic is applied consistently.Adin Scannell
PiperOrigin-RevId: 270114317
2019-09-19Merge release-20190806.1-161-g1c0324d (automated)gVisor bot
2019-09-19Merge pull request #876 from xiaobo55x:hostcpugVisor bot
PiperOrigin-RevId: 270094324
2019-09-19Merge release-20190806.1-159-g0a8a75f (automated)gVisor bot
2019-09-19Job control: controlling TTYs and foreground process groups.Kevin Krakauer
Adresses a deadlock with the rolled back change: https://github.com/google/gvisor/commit/b6a5b950d28e0b474fdad160b88bc15314cf9259 Creating a session from an orphaned process group was causing a lock to be acquired twice by a single goroutine. This behavior is addressed, and a test (OrphanRegression) has been added to pty.cc. Implemented the following ioctls: - TIOCSCTTY - set controlling TTY - TIOCNOTTY - remove controlling tty, maybe signal some other processes - TIOCGPGRP - get foreground process group. Also enables tcgetpgrp(). - TIOCSPGRP - set foreground process group. Also enabled tcsetpgrp(). Next steps are to actually turn terminal-generated control characters (e.g. C^c) into signals to the proper process groups, and to send SIGTTOU and SIGTTIN when appropriate. PiperOrigin-RevId: 270088599
2019-09-18Enable pkg/sentry/hostcpu support on arm64.Haibo Xu
Signed-off-by: Haibo Xu haibo.xu@arm.com Change-Id: I333872da9bdf56ddfa8ab2f034dfc1f36a7d3132
2019-09-18Merge release-20190806.1-156-gc98e7f0 (automated)gVisor bot
2019-09-18Signalfd supportAdin Scannell
Note that the exact semantics for these signalfds are slightly different from Linux. These signalfds are bound to the process at creation time. Reads, polls, etc. are all associated with signals directed at that task. In Linux, all signalfd operations are associated with current, regardless of where the signalfd originated. In practice, this should not be an issue given how signalfds are used. In order to fix this however, we will need to plumb the context through all the event APIs. This gets complicated really quickly, because the waiter APIs are all netstack-specific, and not generally exposed to the context. Probably not worthwhile fixing immediately. PiperOrigin-RevId: 269901749
2019-09-17Merge release-20190806.1-153-g60fe871 (automated)gVisor bot
2019-09-17Automated rollback of changelist 268047073Ghanan Gowripalan
PiperOrigin-RevId: 269658971
2019-09-17Merge release-20190806.1-151-g3b7119a (automated)gVisor bot
2019-09-17platform/ptrace: log exit code for stub processesAndrei Vagin
PiperOrigin-RevId: 269631877
2019-09-17Update remaining users of LinkEndpoints to not refer to them as an ID.Ian Gudger
PiperOrigin-RevId: 269614517
2019-09-14Merge release-20190806.1-145-g239a07a (automated)gVisor bot
2019-09-13gvisor: return ENOTDIR from the unlink syscallAndrei Vagin
ENOTDIR has to be returned when a component used as a directory in pathname is not, in fact, a directory. PiperOrigin-RevId: 269037893
2019-09-13Merge release-20190806.1-143-ga8834fc (automated)gVisor bot
2019-09-12Update p9 to support flipcall.Adin Scannell
PiperOrigin-RevId: 268845090
2019-09-13Merge release-20190806.1-142-g7c6ab6a (automated)gVisor bot
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