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2021-01-29Merge release-20210125.0-26-g71623e406 (automated)gVisor bot
2021-01-29Discard invalid Neighbor AdvertisementsPeter Johnston
...per RFC 4861 s7.1.2. Startblock: has LGTM from sbalana and then add reviewer ghanan PiperOrigin-RevId: 354539026
2021-01-29Merge release-20210125.0-25-gd6a39734c (automated)gVisor bot
2021-01-28Avoid locking when route doesn't require resolutionGhanan Gowripalan
When a route does not need to resolve a remote link address to send a packet, avoid having to obtain the pending packets queue's lock. PiperOrigin-RevId: 354456280
2021-01-29Merge release-20210125.0-24-gff4fc4278 (automated)gVisor bot
2021-01-29Merge release-20210125.0-23-gb81b5883c (automated)gVisor bot
2021-01-28RACK: Update reorder window.Nayana Bidari
After receiving an ACK(cumulative or selective), RACK will update the reorder window which is used as a settling time before marking the packet as lost. This change will add an init function to initialize the variables in RACK and also store the reference to sender in rackControl. The reorder window is calculated as per rfc: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.2 Step 4. PiperOrigin-RevId: 354453528
2021-01-28Acquire entry lock with cache lock heldTamir Duberstein
Avoid a race condition in which an entry is acquired while it is being evicted by overlapping the entry lock with the cache lock. PiperOrigin-RevId: 354452639
2021-01-29Merge release-20210125.0-22-g9cc2570ea (automated)gVisor bot
2021-01-28Change EXPECT/ASSERT to TEST_CHECK inside InForkedProcessFabricio Voznika
PiperOrigin-RevId: 354441239
2021-01-29Merge release-20210125.0-21-g8d1afb418 (automated)gVisor bot
2021-01-29Merge release-20210125.0-20-gc99e092a3 (automated)gVisor bot
2021-01-28Change tcpip.Error to an interfaceTamir Duberstein
This makes it possible to add data to types that implement tcpip.Error. ErrBadLinkEndpoint is removed as it is unused. PiperOrigin-RevId: 354437314
2021-01-28Propagate reader error in ReadFromTamir Duberstein
This was removed in 6c0e1d9cfe6adbfbb32e7020d6426608ac63ad37 but turns out to be crucial to prevent flaky behaviour in sendfile. PiperOrigin-RevId: 354434144
2021-01-29Merge release-20210125.0-19-g56fb2ec11 (automated)gVisor bot
2021-01-29Merge release-20210125.0-17-g62a37034f (automated)gVisor bot
2021-01-28Do not use clockwork for faketimeGhanan Gowripalan
Clockwork does not support timers being reset/stopped from different goroutines. Our current use of clockwork causes data races and gotsan complains about clockwork. This change uses our own implementation of faketime, avoiding data races. PiperOrigin-RevId: 354428208
2021-01-28Re-enable ipv4 reassembly packetimpact testsArthur Sfez
When these specific tests were first added, they would fail when ran by kokoro during the presubmit tests (but they always passed locally). These tests are now passing, so they can be re-enabled. Unclear what changed, one hypothesis is the move from kokoro to buildkite. Fixes #4971 PiperOrigin-RevId: 354425395
2021-01-28[vfs] Fix rename implementation in OrderedChildren.Ayush Ranjan
Fixes #3027 as there is just 1 writable user using OrderedChildren's rename, unlink and rmdir (kernfs.syntheticDirectory) but it doesn't support the sticky bit yet. Fuse which is the other writable user implements its own Inode operations. PiperOrigin-RevId: 354386522
2021-01-28Merge release-20210125.0-16-gbc4039353 (automated)gVisor bot
2021-01-28Merge release-20210125.0-15-gd8c330254 (automated)gVisor bot
2021-01-28Make tcp_noaccept_close_rst more robustZeling Feng
There used to be a race condition where we may call Close before the connection is established. Adding poll support so that we can eliminate this kind of race. Startblock: has LGTM from iyerm and then add reviewer tamird PiperOrigin-RevId: 354369130
2021-01-28Add O_PATH support in vfs2gVisor bot
PiperOrigin-RevId: 354367665
2021-01-28Merge release-20210125.0-14-g449c155bc (automated)gVisor bot
2021-01-28Correctly check permissions in ping socket testTamir Duberstein
The previous check was using SOCK_RAW, despite the fact that the test only uses SOCK_DGRAM. Simplify the test machinery while I'm here. PiperOrigin-RevId: 354359842
2021-01-28Merge release-20210125.0-13-g665c96608 (automated)gVisor bot
2021-01-28Internal change.Michael Pratt
PiperOrigin-RevId: 354327882
2021-01-28Merge release-20210125.0-12-g6012fe9b5 (automated)gVisor bot
2021-01-28Respect SO_BINDTODEVICE in unconnected UDP writesMarina Ciocea
Previously, sending on an unconnected UDP socket would ignore the SO_BINDTODEVICE option. Send on the configured interface when an UDP socket is bound to an interface through setsockop SO_BINDTODEVICE. Add packetimpact tests exercising UDP reads and writes with every combination of bound/unbound, broadcast/multicast/unicast destination, and bound/not-bound to device. PiperOrigin-RevId: 354299670
2021-01-28Merge release-20210125.0-11-gb85b23e50 (automated)gVisor bot
2021-01-27Confirm neighbor reachability with TCP ACKsGhanan Gowripalan
As per RFC 4861 section 7.3.1, A neighbor is considered reachable if the node has recently received a confirmation that packets sent recently to the neighbor were received by its IP layer. Positive confirmation can be gathered in two ways: hints from upper-layer protocols that indicate a connection is making "forward progress", or receipt of a Neighbor Advertisement message that is a response to a Neighbor Solicitation message. This change adds support for TCP to let the IP/link layers know that a neighbor is reachable. Test: integration_test.TestTCPConfirmNeighborReachability PiperOrigin-RevId: 354222833
2021-01-28Merge release-20210125.0-10-g1d22284c1 (automated)gVisor bot
2021-01-27Rename anonymous struct "mu"Tamir Duberstein
This clarifies that there is a lock involved. PiperOrigin-RevId: 354213848
2021-01-28Merge release-20210112.0-104-g99988e45e (automated)gVisor bot
2021-01-28Merge release-20210112.0-103-gcdf49c443 (automated)gVisor bot
2021-01-27Add support for more fields in netstack for TCP_INFONayana Bidari
This CL adds support for the following fields: - RTT, RTTVar, RTO - send congestion window (sndCwnd) and send slow start threshold (sndSsthresh) - congestion control state(CaState) - ReorderSeen PiperOrigin-RevId: 354195361
2021-01-27Move protected fields under anonymous mutexTamir Duberstein
Fixes #5150. PiperOrigin-RevId: 354194385
2021-01-27Merge release-20210112.0-102-g102a9b893 (automated)gVisor bot
2021-01-27Merge pull request #4705 from mlevesquedion:fix-cmp-diff-reporting-in-nud-testsgVisor bot
PiperOrigin-RevId: 354187603
2021-01-27Merge release-20210112.0-100-g814cfd7c4 (automated)gVisor bot
2021-01-27Internal changeZach Koopmans
PiperOrigin-RevId: 354170726
2021-01-27Merge release-20210112.0-99-gde3c63cd9 (automated)gVisor bot
2021-01-27Deflake tcp_zero_window_probe_retransmit_testMithun Iyer
Fix the test to rely on more deterministic retransmission interval computations by skipping the initial probe transmission time as that can be non-deterministic given arbitrary time taken for the DUT to receive a send command and initiate a send. Fixes #5080 PiperOrigin-RevId: 354146256
2021-01-27Merge release-20210112.0-98-g8e6604474 (automated)gVisor bot
2021-01-26Initialize the send buffer handler in endpoint creation.Nayana Bidari
- This CL will initialize the function handler used for getting the send buffer size limits during endpoint creation and does not require the caller of SetSendBufferSize(..) to know the endpoint type(tcp/udp/..) PiperOrigin-RevId: 353992634
2021-01-26Merge release-20210112.0-97-g8bb7d61bd (automated)gVisor bot
2021-01-26Do not use stack.Route to send NDP NSGhanan Gowripalan
When sending packets through a stack.Route, we attempt to perform link resolution. Neighbor Solicitation messages do not need link resolution to be performed so send the packets out the interface directly instead. PiperOrigin-RevId: 353967435
2021-01-26Merge release-20210112.0-96-gce39f8298 (automated)gVisor bot
2021-01-26Implement error on pointersTamir Duberstein
This improves type-assertion safety. PiperOrigin-RevId: 353931228
2021-01-26Merge release-20210112.0-95-ga90661654 (automated)gVisor bot
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