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2020-05-11Merge release-20200422.0-68-g15de8cc (automated)gVisor bot
2020-05-11Add fsimpl/gofer.InternalFilesystemOptions.OpenSocketsByConnecting.Jamie Liu
PiperOrigin-RevId: 311014995
2020-05-11Merge release-20200422.0-66-ge838e7a (automated)gVisor bot
2020-05-11Automated rollback of changelist 310417191Bhasker Hariharan
PiperOrigin-RevId: 310963404
2020-05-11Merge release-20200422.0-64-g0cb9e1d (automated)gVisor bot
2020-05-11Fix view.ToVectorisedView().Bhasker Hariharan
view.ToVectorisedView() now just returns an empty vectorised view if the view is of zero length. Earlier it would return a VectorisedView of zero length but with 1 empty view. This has been a source of bugs as lower layers don't expect zero length views in VectorisedViews. VectorisedView.AppendView() now is a no-op if the view being appended is of zero length. Fixes #2658 PiperOrigin-RevId: 310942269
2020-05-11Merge release-20200422.0-62-gc52195d (automated)gVisor bot
2020-05-10Stop avoiding preadv2 and pwritev2, and add them to the filters.Nicolas Lacasse
Some code paths needed these syscalls anyways, so they should be included in the filters. Given that we depend on these syscalls in some cases, there's no real reason to avoid them any more. PiperOrigin-RevId: 310829126
2020-05-08Merge release-20200422.0-61-gcfd3066 (automated)gVisor bot
2020-05-08iptables - filter packets using outgoing interface.gVisor bot
Enables commands with -o (--out-interface) for iptables rules. $ iptables -A OUTPUT -o eth0 -j ACCEPT PiperOrigin-RevId: 310642286
2020-05-08Merge release-20200422.0-59-g21b7139 (automated)gVisor bot
2020-05-08Pass flags to fsimpl/host.inode.open().Jamie Liu
This has two effects: It makes flags passed to open("/proc/[pid]/fd/[hostfd]") effective, and it prevents imported pipes/sockets/character devices from being opened with O_NONBLOCK unconditionally (because the underlying host FD was set to non-blocking in ImportFD()). PiperOrigin-RevId: 310596062
2020-05-08Merge release-20200422.0-58-g5d7d5ed (automated)gVisor bot
2020-05-08Send ACK to OTW SEQs/unacc ACKs in CLOSE_WAITZeling Feng
This fixed the corresponding packetimpact test. PiperOrigin-RevId: 310593470
2020-05-07Merge release-20200422.0-55-g5536073 (automated)gVisor bot
2020-05-07Fix ARM64 build.Adin Scannell
The common syscall definitions mean that ARM64-exclusive files need stubs in the ARM64 build. PiperOrigin-RevId: 310446698
2020-05-07Capture range variable in parallel subtestsSam Balana
Only the last test was running before since the goroutines won't be executed until after this loop. I added t.Log(test.name) and this is was the result: TestListenNoAcceptNonUnicastV4/SourceUnspecified: DestOtherMulticast TestListenNoAcceptNonUnicastV4/DestUnspecified: DestOtherMulticast TestListenNoAcceptNonUnicastV4/DestOtherMulticast: DestOtherMulticast TestListenNoAcceptNonUnicastV4/SourceBroadcast: DestOtherMulticast TestListenNoAcceptNonUnicastV4/DestOurMulticast: DestOtherMulticast TestListenNoAcceptNonUnicastV4/DestBroadcast: DestOtherMulticast TestListenNoAcceptNonUnicastV4/SourceOtherMulticast: DestOtherMulticast TestListenNoAcceptNonUnicastV4/SourceOurMulticast: DestOtherMulticast https://github.com/golang/go/wiki/TableDrivenTests#parallel-testing PiperOrigin-RevId: 310440629
2020-05-07Merge release-20200422.0-52-g9115f26 (automated)gVisor bot
2020-05-07Allocate device numbers for VFS2 filesystems.Jamie Liu
Updates #1197, #1198, #1672 PiperOrigin-RevId: 310432006
2020-05-07Merge release-20200422.0-51-g1f4087e (automated)gVisor bot
2020-05-07Merge release-20200422.0-50-g28b5565 (automated)gVisor bot
2020-05-07Automated rollback of changelist 309339316Bhasker Hariharan
PiperOrigin-RevId: 310417191
2020-05-07Merge release-20200422.0-49-gd0b1d02 (automated)gVisor bot
2020-05-07Move pkg/sentry/vfs/{eventfd,timerfd} to new packages in pkg/sentry/fsimpl.Nicolas Lacasse
They don't depend on anything in VFS2, so they should be their own packages. PiperOrigin-RevId: 310416807
2020-05-07Merge release-20200422.0-47-g26c60d7 (automated)gVisor bot
2020-05-07Port signalfd to vfs2.Nicolas Lacasse
PiperOrigin-RevId: 310404113
2020-05-07Merge release-20200422.0-46-g08f4846 (automated)gVisor bot
2020-05-07Fix bugs in SACK recovery.Bhasker Hariharan
Every call to sender.NextSeg does not need to iterate from the front of the writeList as in a given recovery episode we can cache the last nextSeg returned. There cannot be a lower sequenced segment that matches the next call to NextSeg as otherwise we would have returned that instead in the previous call. This fixes the issue of excessive CPU usage w/ large send buffers where we spend a lot of time iterating from the front of the list on every NextSeg invocation. Further the following other bugs were also fixed: * Iteration of segments never sent in NextSeg() when looking for segments for retransmission that match step1/3/4 of the NextSeg algorithm * Correctly setting rescueRxt only if the rescue segment was actually sent. * Correctly initializing rescueRxt/highRxt when entering SACK recovery. * Correctly re-arming the timer only on retransmissions when SACK is in use and not for every segment being sent as it was being done before. * Copy over xmitTime and xmitCount on segment clone. * Move writeNext along when skipping over SACKED segments. This is required to prevent spurious retransmissions where we end up retransmitting data that was never lost. PiperOrigin-RevId: 310387671
2020-05-07Merge release-20200422.0-45-g16da7e7 (automated)gVisor bot
2020-05-07Update privateunixsocket TODOs.Dean Deng
Synthetic sockets do not have the race condition issue in VFS2, and we will get rid of privateunixsocket as well. Fixes #1200. PiperOrigin-RevId: 310386474
2020-05-07Merge release-20200422.0-42-ge0089a2 (automated)gVisor bot
2020-05-07Merge pull request #2639 from kevinGC:ipv4-frag-reassembly-testgVisor bot
PiperOrigin-RevId: 310380911
2020-05-07Remove outdated TODO for VFS2 AccessAt.Dean Deng
Fixes #1965. PiperOrigin-RevId: 310380433
2020-05-06Add basic incoming ipv4 fragment testsKevin Krakauer
Based on ipv6's TestReceiveIPv6Fragments.
2020-05-07Merge release-20200422.0-41-gfeece24 (automated)gVisor bot
2020-05-06Merge pull request #2570 from lubinszARM:pr_cleangVisor bot
PiperOrigin-RevId: 310259686
2020-05-06Merge release-20200422.0-39-g7cd54c1 (automated)gVisor bot
2020-05-06Remove vfs.FileDescriptionOptions.InvalidWrite.Jamie Liu
Compare: https://elixir.bootlin.com/linux/v5.6/source/fs/timerfd.c#L431 PiperOrigin-RevId: 310246908
2020-05-06Merge release-20200422.0-38-g485ca36 (automated)gVisor bot
2020-05-06Do not assume no DHCPv6 configurationsGhanan Gowripalan
Do not assume that networks need any DHCPv6 configurations. Instead, notify the NDP dispatcher in response to the first NDP RA's DHCPv6 flags, even if the flags indicate no DHCPv6 configurations are available. PiperOrigin-RevId: 310245068
2020-05-06Merge release-20200422.0-37-g279f1eb (automated)gVisor bot
2020-05-06Fix runsc syscall documentation generation.Adin Scannell
We can register any number of tables with any number of architectures, and need not limit the definitions to the architecture in question. This allows runsc to generate documentation for all architectures simultaneously. Similarly, this simplifies the VFSv2 patching process. PiperOrigin-RevId: 310224827
2020-05-06Merge release-20200422.0-36-gb08222c (automated)gVisor bot
2020-05-06sniffer: fix accidental logging of good packets as badKevin Krakauer
We need to check vv.Size() instead of len(tcp), as tcp will always be 20 bytes long. PiperOrigin-RevId: 310218351
2020-05-06Merge release-20200422.0-34-g591ff0e (automated)gVisor bot
2020-05-06Add maximum memory limit.Nicolas Lacasse
PiperOrigin-RevId: 310179277
2020-05-06Merge release-20200422.0-33-g8416da3 (automated)gVisor bot
2020-05-05Internal change.gVisor bot
PiperOrigin-RevId: 310057834
2020-05-05Merge release-20200422.0-31-ge590314 (automated)gVisor bot
2020-05-05Support TCP zero window probes.Mithun Iyer
As per RFC 1122 4.2.2.17, when the remote advertizes zero receive window, the sender needs to probe for the window-size to become non-zero starting from the next retransmission interval. The TCP connection needs to be kept open as long as the remote is acknowledging the zero window probes. We reuse the retransmission timers to support this. Fixes #1644 PiperOrigin-RevId: 310021575
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