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2020-12-11Fix panic when IPv4 address is used in sendmsg for IPv6 socketsNayana Bidari
We do not rely on error for getsockopt options(which have boolean values) anymore. This will cause issue in sendmsg where we used to return error for IPV6_V6Only option. Fix the panic by returning error (for sockets other than TCP and UDP) if the address does not match the type(AF_INET/AF_INET6) of the socket. PiperOrigin-RevId: 347063838
2020-12-11Adjust requests to be constant equal to b.N in network tests.Zach Koopmans
For "hey", requests >= concurrency. b.N can be set by the --test.benchtime={b.N}x. The previous setting of b.N * c can be surprisingly slow for larger c. Set the requests to max(b.N, c) and log to the user if it is c. PiperOrigin-RevId: 347053675
2020-12-11Remove existing nogo exceptions.Adin Scannell
PiperOrigin-RevId: 347047550
2020-12-11Make semctl IPC_INFO cmd return the index of highest used entry.Jing Chen
PiperOrigin-RevId: 346973338
2020-12-10Log window sizeTamir Duberstein
Without this change, this test produces quite opaque errors as valid TCP segments are not logged; what we see in the end is any random traffic that happened *after* the final TCP segment. PiperOrigin-RevId: 346864169
2020-12-10Uncomment payload generationTamir Duberstein
PiperOrigin-RevId: 346852543
2020-12-10Correctly align non-matching layersTamir Duberstein
PiperOrigin-RevId: 346840424
2020-12-10Correctly print non-matching layersTamir Duberstein
PiperOrigin-RevId: 346818310
2020-12-09Add support for IP_RECVORIGDSTADDR IP option.Bhasker Hariharan
Fixes #5004 PiperOrigin-RevId: 346643745
2020-12-09Add network benchmarks jobsZach Koopmans
Add httpd, nginx, node, and ruby benchmarks to continuous jobs. PiperOrigin-RevId: 346629115
2020-12-09Add tensorflow, ffmpeg, and redis jobs.Zach Koopmans
PiperOrigin-RevId: 346603153
2020-12-09Refactor the Makefile to avoid recursive Make.Adin Scannell
Recursive make is difficult to follow and debug. Drop this by using internal functions, which, while difficult, are easier than trying to following recursive invokations. Further simplify the Makefile by collapsing the image bits and removing the tools/vm directory, which is effectively unused. Fixes #4952 PiperOrigin-RevId: 346569133
2020-12-09export MountTempDirectoryZeling Feng
PiperOrigin-RevId: 346487763
2020-12-08Run tcpdump as rootTamir Duberstein
Prior to this change tcpdump would fail to create its output file because the destination directory was owned by root. This would later cause killall to fail, as tcpdump was not running. Check exit code of tcpdump/tshark to produce better error messages should this regress. PiperOrigin-RevId: 346353911
2020-12-08Consolidate sniffer program logicTamir Duberstein
Avoid action at a distance where both `snifferArgs` and `snifferProg` must stay in sync. PiperOrigin-RevId: 346341231
2020-12-07Fix error handling on fusefs mount.Rahat Mahmood
Don't propagate arbitrary golang errors up from fusefs because errors that don't map to an errno result in a sentry panic. Reported-by: syzbot+697cb635346e456fddfc@syzkaller.appspotmail.com PiperOrigin-RevId: 346220306
2020-12-07Remove detritusTamir Duberstein
- Remove unused constants - Correct function doc comment - Remove useless cast - Restore comment removed in an earlier change PiperOrigin-RevId: 346205943
2020-12-07Fix tags on benchmark targets.Zach Koopmans
PiperOrigin-RevId: 346203209
2020-12-07Avoid shadowing `testbench` packageTamir Duberstein
PiperOrigin-RevId: 346109185
2020-12-07Support icmpv6 transport protocolPeter Johnston
PiperOrigin-RevId: 346101076
2020-12-06Merge pull request #4932 from lubinszARM:pr_test_exceptionsgVisor bot
PiperOrigin-RevId: 345976554
2020-12-05Fix zero receive window advertisements.Mithun Iyer
With the recent changes db36d948fa63ce950d94a5e8e9ebc37956543661, we try to balance the receive window advertisements between payload lengths vs segment overhead length. This works fine when segment size are much higher than the overhead, but not otherwise. In cases where the segment length is smaller than the segment overhead, we may end up not advertising zero receive window for long time and end up tail-dropping segments. This is especially pronounced when application socket reads are slow or stopped. In this change we do not grow the right edge of the receive window for smaller segment sizes similar to Linux. Also, we keep track of the socket buffer usage and let the window grow if the application is actively reading data. Fixes #4903 PiperOrigin-RevId: 345832012
2020-12-04Remove invalid test case.Adin Scannell
The next test case is perfectly valid, which creates a test directory with appropriate permissions and ensures that you can't create a file. This test case assumes that the root directory has certain permissions. In this case, we may have EROFS instead of a permission error, but it's perfectly plausible that no error occurs at all. The test is not valid. PiperOrigin-RevId: 345764412
2020-12-04Initialize has_tid for correctness.Adin Scannell
PiperOrigin-RevId: 345763209
2020-12-04Introduce IPv4 options serializer and add RouterAlert to IGMPBruno Dal Bo
PiperOrigin-RevId: 345701623
2020-12-03Implement command IPC_INFO for semctl.Jing Chen
PiperOrigin-RevId: 345589628
2020-12-03Implement `fcntl` options `F_GETSIG` and `F_SETSIG`.Etienne Perot
These options allow overriding the signal that gets sent to the process when I/O operations are available on the file descriptor, rather than the default `SIGIO` signal. Doing so also populates `siginfo` to contain extra information about which file descriptor caused the event (`si_fd`) and what events happened on it (`si_band`). The logic around which FD is populated within `si_fd` matches Linux's, which means it has some weird edge cases where that value may not actually refer to a file descriptor that is still valid. This CL also ports extra S/R logic regarding async handler in VFS2. Without this, async I/O handlers aren't properly re-registered after S/R. PiperOrigin-RevId: 345436598
2020-12-03Support partitions for other tests.Adin Scannell
PiperOrigin-RevId: 345399936
2020-12-02Abandon reassembly of a packet if fragments overlapArthur Sfez
However, receiving duplicated fragments will not cause reassembly to fail. This is what Linux does too: https://github.com/torvalds/linux/blob/38525c6/net/ipv4/inet_fragment.c#L355 PiperOrigin-RevId: 345309546
2020-12-02Skip generating an empty (broken) test case.Adin Scannell
It's possible that all the cases in a given batch are excluded if the offsets line up just right, which will cause the test to fail. Don't generate an invalid test in this case. PiperOrigin-RevId: 345276588
2020-12-02Fix chown test.Adin Scannell
PiperOrigin-RevId: 345265342
2020-12-02Skip CanKillAllPIDs when running natively.Adin Scannell
This is quite disruptive to run in some environments. PiperOrigin-RevId: 345247206
2020-12-02Add /proc/sys/kernel/sem.Jing Chen
PiperOrigin-RevId: 345178956
2020-12-01Avoid wrong error messagesZeling Feng
Stop showing wrong timeout values in packetimpact test error messages. e.g. "got frames ... want ... during -123ms" PiperOrigin-RevId: 345144938
2020-12-01Typo fix.Etienne Perot
PiperOrigin-RevId: 345062676
2020-11-30Fix deadlock in UDP handleControlPacket path.Bhasker Hariharan
Fixing the sendto deadlock exposed yet another deadlock where a lock inversion occurs on the handleControlPacket path where e.mu and demuxer.epsByNIC.mu are acquired in reverse order from say when RegisterTransportEndpoint is called in endpoint.Connect(). This fix sidesteps the issue by just making endpoint.state an atomic and gets rid of the need to acquire e.mu in e.HandleControlPacket. PiperOrigin-RevId: 344939895
2020-11-30Do not os.Exit() from test/benchmarks/harness.Harness.Init with no args.Jamie Liu
PiperOrigin-RevId: 344896991
2020-11-25Support listener-side MLDv1Ghanan Gowripalan
...as defined by RFC 2710. Querier (router)-side MLDv1 is not yet supported. The core state machine is shared with IGMPv2. This is guarded behind a flag (ipv6.Options.MLDEnabled). Tests: ip_test.TestMGP* Bug #4861 PiperOrigin-RevId: 344344095
2020-11-25[3/3] Support isolated containers for parallel packetimpact testsZeling Feng
To create DUTs in parallel, we need to create goroutines to do the setup. The old code base has a lot of t.Fatal(f) usage in those setup functions which is not great for this change: "FailNow must be called from the goroutine running the test or benchmark function, not from other goroutines created during the test" (https://golang.org/pkg/testing/#T.FailNow). - Cleanup all t.Fatal(f) usage in DUT.Prepare() - use goroutines to create DUTs in parallel PiperOrigin-RevId: 344275809
2020-11-24[2/3] Support isolated containers for parallel packetimpact testsZeling Feng
Added a new flag num_duts to the test runner to create multiple DUTs for the testbench can connect to. PiperOrigin-RevId: 344195435
2020-11-25arm64 test: add exceptions related test casesRobin Luk
For now, I only added a halt test case for Arm64. Signed-off-by: Robin Luk <lubin.lu@antgroup.com>
2020-11-24Report correct pointer value for "bad next header" ICMP errorJulian Elischer
Because the code handles a bad header as "payload" right up to the last moment we need to make sure payload handling does not remove the error information. Fixes #4909 PiperOrigin-RevId: 344141690
2020-11-24Fix a potential indefinite blocking in packetimpact testbenchZeling Feng
1. setsockopt(SO_RCVTIMEO, 0) == never timeout 2. float64(time.Microsecond/time.Second) == 0 3. packetimpact tests use a lot of 1s timeouts This becomes a more significant problem because of a recent change that binds the sniffer only on the specific testNet interface so now the traffic on the ctrlNet cannot wake up the blocking call anymore. PiperOrigin-RevId: 344123465
2020-11-23[1/3] Support isolated containers for parallel packetimpact testsZeling Feng
Summary of the approach: the test runner will set up a few DUTs according to a flag and pass all the test networks to the testbench. The testbench will only reside in a single container. The testbench will put all the test networks into a buffered channel which served as a semaphore and now the user can freely use t.Parallel() in (sub)tests and the true parallelism will be determined by how many DUTs are configured. Creating DUTs on demand is not supported yet, the test author should determine the number of DUTs to be used statically. Specifically in this change: - Don't export any global variables about the test network in testbench. - Sniffer only binds on the local interface because it will be possible to have multiple interfaces to multiple DUTs in a single testbench container. - Migrate existing tests to stop using global variables. PiperOrigin-RevId: 343965962
2020-11-23Fail gracefully if Docker is not configured with ipv6.Adin Scannell
PiperOrigin-RevId: 343927315
2020-11-23Omit sandbox from chown test.Adin Scannell
This test fails because it must include additional UIDs. Omit the bazel sandbox to ensure that it can function correctly. PiperOrigin-RevId: 343927190
2020-11-23Ignore permission failures in CheckDuplicatesRecursively.Adin Scannell
Not all files are always accessible by the process itself. This was specifically seen with map_files, but there's no rule that every entry must be accessible by the process itself. PiperOrigin-RevId: 343919117
2020-11-19Internal change.gVisor bot
PiperOrigin-RevId: 343419851
2020-11-19Propagate IP address prefix from host to netstackFabricio Voznika
Closes #4022 PiperOrigin-RevId: 343378647
2020-11-19Don't hold AddressEndpoints for multicast addressesGhanan Gowripalan
Group addressable endpoints can simply check if it has joined the multicast group without maintaining address endpoints. This also helps remove the dependency on AddressableEndpoint from GroupAddressableEndpoint. Now that group addresses are not tracked with address endpoints, we can avoid accidentally obtaining a route with a multicast local address. PiperOrigin-RevId: 343336912
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