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2021-02-18Bump build constraints to Go 1.18Michael Pratt
These are bumped to allow early testing of Go 1.17. Use will be audited closer to the 1.17 release. PiperOrigin-RevId: 358278615
2021-02-18Make b.N increase by KB not bytes on iperf.Zach Koopmans
Currently, iperf runs a client that scales by bytes sent. In practice, this causes b.N to scale slowly and have several short lived containers. Instead, scale by KB to more quickly reach required time. PiperOrigin-RevId: 358244926
2021-02-18Validate IGMP packetsArthur Sfez
This change also adds support for Router Alert option processing on incoming packets, a new stat for Router Alert option, and exports all the IP-option related stats. Fixes #5491 PiperOrigin-RevId: 358238123
2021-02-18Use standard want/got syntax in test errorsTamir Duberstein
Remove unused argument while I'm here and avoid returning syscall.Errno(0) which should rather be a nil error. PiperOrigin-RevId: 358227396
2021-02-18Remove deprecated NUD types Failed and FailedEntryLookupsSam Balana
Completes the soft migration to Unreachable state by removing the Failed state and the the FailedEntryLookups StatCounter. Fixes #4667 PiperOrigin-RevId: 358226380
2021-02-18Remove side effect from pty testsFabricio Voznika
Individual test cases must not rely on being executed in a clean environment. PiperOrigin-RevId: 358207468
2021-02-17Deflake tcp_network_unreachable testZeling Feng
Previously, we make two connect attempts. If the first attempt is still on going when the second attempt is made, the test will fail. This change deflakes the situation by not making the second attempt, instead, we poll for the first attempt's completion and read the errno from SO_ERROR. PiperOrigin-RevId: 358104769
2021-02-17[infra] Update JDK11 version for java runtime tests.Ayush Ranjan
PiperOrigin-RevId: 358085809
2021-02-17Move Name() out of netstack Matcher. It can live in the sentry.Kevin Krakauer
PiperOrigin-RevId: 358078157
2021-02-17Add gohacks.Slice/StringHeader.Jamie Liu
See https://github.com/golang/go/issues/19367 for rationale. Note that the upstream decision arrived at in that thread, while useful for some of our use cases, doesn't account for all of our SliceHeader use cases (we often use SliceHeader to extract pointers from slices in a way that avoids bounds checking and/or handles nil slices correctly) and also doesn't exist yet. PiperOrigin-RevId: 358071574
2021-02-17Check for directory emptiness in VFS1 overlay rmdir().Jamie Liu
Note that this CL reorders overlayEntry.copyMu before overlayEntry.dirCacheMu in the overlayFileOperations.IterateDir() => readdirEntries() path - but this lock ordering is already required by overlayRemove/Bind() => overlayEntry.markDirectoryDirty(), so this actually just fixes an inconsistency. PiperOrigin-RevId: 358047121
2021-02-17Use TCP_INFO to get RTO in tcp_retransmits_testNayana Bidari
- TCP_INFO is used to get the RTO instead of calculating it manually. PiperOrigin-RevId: 358032487
2021-02-17Clean up test styleTamir Duberstein
- Wrap comments at 80 columns - Avoid duplicating the number of retries (5) - Reduce indentation - Use (*testing.T).Fatal rather than (*testing.T).Fatalf PiperOrigin-RevId: 358017412
2021-02-17[infra] Split tcpip/integration test targets to aid investigation.Ayush Ranjan
tcpip integration tests have been flaky lately. They usually run in 20 seconds and have a 60 seconds timeout. Sometimes they timeout which could be due to a bug or deadlock. To further investigate it might be helpful to split the targets and see which test is causing the flake. Added a new tcpip/tests/utils package to hold all common utilities across all tests. PiperOrigin-RevId: 358012936
2021-02-17Deflake //test/iptables:iptables_testKevin Krakauer
We were opening dual-stack sockets, but tests only set iptables rules for a single network protocol. Thus, packets (probably sent by previous tests) could sneak in and break tests. Tested with: bazel test ///test/iptables:iptables_test --test_arg=--runtime=runsc --nocache_test_results --test_output=errors --runs_per_test=1000 --test_filter=TestFilterInputDropUDP PiperOrigin-RevId: 357972385
2021-02-12Stop the control server only once.Adin Scannell
Operations are now shut down automatically by the main Stop command, and it is not necessary to call Stop during Destroy. Fixes #5454 PiperOrigin-RevId: 357295930
2021-02-12Remove packetimpact test tcp_reorderingNayana Bidari
Remove flaky tcp_reordering_test as it does not check reordering. We have added new reorder tests in tcp_rack_test.go PiperOrigin-RevId: 357278769
2021-02-12Rename params for iperf and tensorflow.Zach Koopmans
Rename operation params in iperf and tensorflow to match other similar benchmarks. PiperOrigin-RevId: 357250304
2021-02-12Add reference to gsoc 2021 proposal page for website.Rahat Mahmood
PiperOrigin-RevId: 357241880
2021-02-12Fix bug with iperf and don't profile runc.Zach Koopmans
Fix issue with iperf where b.N wasn't changing across runs. Also, if the given runtime is runc/not given, don't run a profile against it. PiperOrigin-RevId: 357231450
2021-02-12tests: getsockname expects that addrlen will be initializedAndrei Vagin
PiperOrigin-RevId: 357224877
2021-02-11[rack] TLP: ACK Processing and PTO scheduling.Ayush Ranjan
This change implements TLP details enumerated in https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.5.3 Fixes #5085 PiperOrigin-RevId: 357125037
2021-02-11Unconditionally check for directory-ness in overlay.filesystem.UnlinkAt().Jamie Liu
PiperOrigin-RevId: 357106080
2021-02-11[netstack] Fix recovery entry and exit checks.Ayush Ranjan
Entry check: - Earlier implementation was preventing us from entering recovery even if SND.UNA is lost but dupAckCount is still below threshold. Fixed that. - We should only enter recovery when at least one more byte of data beyond the highest byte that was outstanding when fast retransmit was last entered is acked. Added that check. Exit check: - Earlier we were checking if SEG.ACK is in range [SND.UNA, SND.NXT]. The intention was to check if any unacknowledged data was ACKed. Note that (SEG.ACK - 1) is actually the sequence number which was ACKed. So we were incorrectly including (SND.UNA - 1) in the range. Fixed the check to now be (SEG.ACK - 1) in range [SND.UNA, SND.NXT). Additionally, moved a RACK specific test to the rack tests file. Added tests for the changes I made. PiperOrigin-RevId: 357091322
2021-02-11Internal change.gVisor bot
PiperOrigin-RevId: 357090170
2021-02-11Let sentry understand tcpip.ErrMalformedHeaderKevin Krakauer
Added a LINT IfChange/ThenChange check to catch this in the future. PiperOrigin-RevId: 357077564
2021-02-11iptables test: Implement testCase interface on pointersToshi Kikuchi
Implementing interfaces on value types causes the interface to be implemented by both the value type and the pointer type of the implementer. This complicates type assertion as it requires the assertion to check for both the pointer type and the value type. PiperOrigin-RevId: 357061063
2021-02-11Implement semtimedop.Jing Chen
PiperOrigin-RevId: 357031904
2021-02-11Assign controlling terminal when tty is opened and support NOCTTYKevin Krakauer
PiperOrigin-RevId: 357015186
2021-02-11Allow rt_sigaction in gofer seccompFabricio Voznika
rt_sigaction may be called by Go runtime when trying to panic: https://cs.opensource.google/go/go/+/master:src/runtime/signal_unix.go;drc=ed3e4afa12d655a0c5606bcf3dd4e1cdadcb1476;bpv=1;bpt=1;l=780?q=rt_sigaction&ss=go Updates #5038 PiperOrigin-RevId: 357013186
2021-02-10Support setgid directories in tmpfs and kernfsKevin Krakauer
PiperOrigin-RevId: 356868412
2021-02-10RACK: Fix re-transmitting the segment twice when entering recovery.Nayana Bidari
TestRACKWithDuplicateACK is flaky as the reorder window can expire before receiving three duplicate ACKs which will result in sending the first unacknowledged segment twice: when reorder timer expired and again after receiving the third duplicate ACK. This CL will fix this behavior and will not resend the segment again if it was already re-transmittted when reorder timer expired. Update the TestRACKWithDuplicateACK to test that the first segment is considered as lost and is re-transmitted. PiperOrigin-RevId: 356855168
2021-02-10Don't allow to umount the namespace root mountAndrei Vagin
Linux does the same thing. Reported-by: syzbot+6c79385c930c929d1d9e@syzkaller.appspotmail.com PiperOrigin-RevId: 356854562
2021-02-10Fix broken IFTTT link in tcpip.Ayush Ranjan
PiperOrigin-RevId: 356852625
2021-02-10Update benchmarks README.mdZach Koopmans
PiperOrigin-RevId: 356843249
2021-02-10Retry RST expectation in tcp_synrcvd_reset_testMithun Iyer
Deflake this test by retransmitting the ACK and retrying RST expectation after the supposed state transition to CLOSED. This gives time for the state transition to complete. Without such a retransmit from the test, the ACK could get silently dropped by the listener when the passively connecting endpoint has not yet completely updated the state (in gVisor this would be endpoint state and decrement of synRcvdCount). PiperOrigin-RevId: 356825562
2021-02-10Add proposal for io_uring project.Rahat Mahmood
PiperOrigin-RevId: 356807933
2021-02-10Internal change.Matt LaPlante
PiperOrigin-RevId: 356784956
2021-02-10Add mitigate command to runscZach Koopmans
PiperOrigin-RevId: 356772367
2021-02-10Merge pull request #5267 from lubinszARM:pr_usr_lazy_fpgVisor bot
PiperOrigin-RevId: 356762859
2021-02-09Add support for setting SO_SNDBUF for unix domain sockets.Bhasker Hariharan
The limits for snd/rcv buffers for unix domain socket is controlled by the following sysctls on linux - net.core.rmem_default - net.core.rmem_max - net.core.wmem_default - net.core.wmem_max Today in gVisor we do not expose these sysctls but we do support setting the equivalent in netstack via stack.Options() method. But AF_UNIX sockets in gVisor can be used without netstack, with hostinet or even without any networking stack at all. Which means ideally these sysctls need to live as globals in gVisor. But rather than make this a big change for now we hardcode the limits in the AF_UNIX implementation itself (which in itself is better than where we were before) where it SO_SNDBUF was hardcoded to 16KiB. Further we bump the initial limit to a default value of 208 KiB to match linux from the paltry 16 KiB we use today. Updates #5132 PiperOrigin-RevId: 356665498
2021-02-09Make RPCTimeout for udp_send_recv_dgram to be 500 milliseconds.Zeling Feng
The test will sometimes fail on Bind calls using the old RPCTimeout. PiperOrigin-RevId: 356646668
2021-02-09Add cleanup TODO for integer-based proc files.Dean Deng
PiperOrigin-RevId: 356645022
2021-02-09Update and tidy Go modulesTamir Duberstein
PiperOrigin-RevId: 356624256
2021-02-09Fix fd leak from testFabricio Voznika
PiperOrigin-RevId: 356587965
2021-02-09Move network internal code to internal packageGhanan Gowripalan
Utilities written to be common across IPv4/IPv6 are not planned to be available for public use. https://golang.org/doc/go1.4#internalpackages PiperOrigin-RevId: 356554862
2021-02-09Deprecate Failed state in favor of Unreachable stateSam Balana
... as per RFC 7048. The Failed state is an internal state that is not specified by any RFC; replacing it with the Unreachable state enables us to expose this state while keeping our terminology consistent with RFC 4861 and RFC 7048. Unreachable state replaces all internal references for Failed state. However unlike the Failed state, change events are dispatched when moving into Unreachable state. This gives developers insight into whether a neighbor entry failed address resolution or whether it was explicitly removed. The Failed state will be removed entirely once all references to it are removed. This is done to avoid a Fuchsia roll failure. Updates #4667 PiperOrigin-RevId: 356554104
2021-02-09Collapse code that always returns errorTamir Duberstein
PiperOrigin-RevId: 356536548
2021-02-09kernel: reparentLocked has to update children maps of old and new parentsAndrei Vagin
Reported-by: syzbot+9ffc71246fe72c73fc25@syzkaller.appspotmail.com PiperOrigin-RevId: 356536113
2021-02-09pipe: writeLocked has to return ErrWouldBlock if the pipe is fullAndrei Vagin
PiperOrigin-RevId: 356450303
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