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2020-04-17Merge release-20200323.0-169-gb33c3bb (automated)gVisor bot
2020-04-16Return detailed errors when iterating NDP optionsGhanan Gowripalan
Test: header_test.TestNDPOptionsIterCheck PiperOrigin-RevId: 306953867
2020-04-16Merge release-20200323.0-168-g0eda010 (automated)gVisor bot
2020-04-16Fix data race in tcp_test.Bhasker Hariharan
This change makes SynRcvdCountThreshold and the global synRcvdCount into a stack configurable value. This is required because in cases like mod_proxy which create multiple Stack instances the count will be a global value that impacts all Stack instances. Further the tests relied on modifying the global threshold to simulate tests where we want to verify SYN cookie based behaviour. This lead to data races due to the global being modified/read without locks or atomics. PiperOrigin-RevId: 306947723
2020-04-15Merge release-20200323.0-159-g7c13546 (automated)gVisor bot
2020-04-15Deduplicate packet loggingTamir Duberstein
PiperOrigin-RevId: 306677789
2020-04-15Merge release-20200323.0-158-g0348edc (automated)gVisor bot
2020-04-15Remove unnecessary codeTamir Duberstein
Remove useless casts and duplicate return statements. PiperOrigin-RevId: 306627916
2020-04-15Merge release-20200323.0-157-g9c91834 (automated)gVisor bot
2020-04-15Reset pending connections on listener closeMithun Iyer
Attempt to redeliver TCP segments that are enqueued into a closing TCP endpoint. This was being done for Established endpoints but not for those that are listening or performing connection handshake. Fixes #2417 PiperOrigin-RevId: 306598155
2020-04-15Merge release-20200323.0-156-g28212b3 (automated)gVisor bot
2020-04-14Reduce flakiness in tcp_test.Bhasker Hariharan
Tests now use a MinRTO of 3s instead of default 200ms. This reduced flakiness in a lot of the congestion control/recovery tests which were flaky due to retransmit timer firing too early in case the test executors were overloaded. This change also bumps some of the timeouts in tests which were too sensitive to timer variations and reduces the number of slow start iterations which can make the tests run for too long and also trigger retansmit timeouts etc if the executor is overloaded. PiperOrigin-RevId: 306562645
2020-04-15Merge release-20200323.0-155-g36fbaac (automated)gVisor bot
2020-04-14Attempt SLAAC address regeneration on DAD conflictsGhanan Gowripalan
As per RFC 7217 section 6, attempt to regenerate IPv6 SLAAC address in response to a DAD conflict if the address was generated with an opaque IID as outlined in RFC 7217 section 5. Test: - stack_test.TestAutoGenAddrWithOpaqueIIDDADRetries - stack_test.TestAutoGenAddrWithEUI64IIDNoDADRetries - stack_test.TestAutoGenAddrContinuesLifetimesAfterRetry PiperOrigin-RevId: 306555645
2020-04-10Merge release-20200323.0-119-g7812661 (automated)gVisor bot
2020-04-09Merge pull request #2253 from amscanne:nogogVisor bot
PiperOrigin-RevId: 305807868
2020-04-10Merge release-20200323.0-114-gc560bfd (automated)gVisor bot
2020-04-09Drop invalid NDP NS messagesGhanan Gowripalan
Better validate NDP NS messages and their options before doing work in response to them. Also make sure that NA messages sent in response to an NS use the correct IPv6 and link-layer addresses so they are routed properly and received by the right node. Test: stack_test.TestNeighorSolicitationResponse PiperOrigin-RevId: 305799054
2020-04-09Merge release-20200323.0-103-g7928aa3 (automated)gVisor bot
2020-04-09Convert int and bool socket options to use GetSockOptInt and GetSockOptBoolAndrei Vagin
PiperOrigin-RevId: 305699233
2020-04-08Remove lostcancel warnings.Adin Scannell
Updates #2243
2020-04-08Fix all printf formatting errors.Adin Scannell
Updates #2243
2020-04-07Merge release-20200323.0-80-g6db55a5 (automated)gVisor bot
2020-04-07Require that IPv6 headers be in the first fragmentGhanan Gowripalan
Test: - header_test.TestIPv6ExtHdrIter - ipv6_test.TestReceiveIPv6Fragments Updates #2197, #2333 PiperOrigin-RevId: 305330178
2020-04-04Merge release-20200323.0-69-gfc99a7e (automated)gVisor bot
2020-04-03Refactor software GSO code.Bhasker Hariharan
Software GSO implementation currently has a complicated code path with implicit assumptions that all packets to WritePackets carry same Data and it does this to avoid allocations on the path etc. But this makes it hard to reuse the WritePackets API. This change breaks all such assumptions by introducing a new Vectorised View API ReadToVV which can be used to cleanly split a VV into multiple independent VVs. Further this change also makes packet buffers linkable to form an intrusive list. This allows us to get rid of the array of packet buffers that are passed in the WritePackets API call and replace it with a list of packet buffers. While this code does introduce some more allocations in the benchmarks it doesn't cause any degradation. Updates #231 PiperOrigin-RevId: 304731742
2020-04-03Merge release-20200323.0-61-g4582a2f (automated)gVisor bot
2020-04-02Drop NDP messages with fragment extension headerGhanan Gowripalan
As per RFC 6980 section 5, nodes MUST silently ignore NDP messages if the packet carrying them include an IPv6 Fragmentation Header. Test: ipv6_test.TestNDPValidation PiperOrigin-RevId: 304519379
2020-04-02Merge release-20200323.0-58-gecc3d01 (automated)gVisor bot
2020-04-02Increment NDP message RX stats before validationGhanan Gowripalan
Tests: - ipv6_test.TestHopLimitValidation - ipv6_test.TestRouterAdvertValidation PiperOrigin-RevId: 304495723
2020-04-01Deflake tcpip/stack:stack_x_testGhanan Gowripalan
Timeouts were increased to deflake pkg/tcpip/stack:stack_x_test tests that depend on timers. Some timeouts used previously were intended for tests that do not depend on timers, so this change updates those timeouts to give more time for a timer-based event to occur. This change also de-parallelizes non-subtests to reduce the number of active timers. Test: bazel test //pkg/tcpip/stack:stack_x_test --runs_per_test=500 PiperOrigin-RevId: 304287622
2020-04-01Merge release-20200323.0-44-gd25036a (automated)gVisor bot
2020-03-31Test receiving multicast packets over UDPEyal Soha
PiperOrigin-RevId: 304098611
2020-03-27Merge release-20200219.0-253-g2a4aff7 (automated)gVisor bot
2020-03-27Support Hop By Hop and Destination Options ext hdrGhanan Gowripalan
Enables handling the Hop by Hop and Destination Options extension headers, but options are not yet supported. All options will be treated as unknown and their respective action will be followed. Note, the stack does not yet support sending ICMPv6 error messages in response to options that cannot be handled/parsed. That will come in a later change (Issue #2211). Tests: - header_test.TestIPv6UnknownExtHdrOption - header_test.TestIPv6OptionsExtHdrIterErr - header_test.TestIPv6OptionsExtHdrIter - ipv6_test.TestReceiveIPv6ExtHdrs PiperOrigin-RevId: 303433085
2020-03-26Merge release-20200219.0-250-gedc3c04 (automated)gVisor bot
2020-03-26Use panic instead of log.FatalfGhanan Gowripalan
PiperOrigin-RevId: 303212189
2020-03-26Merge release-20200219.0-249-g0e62a54 (automated)gVisor bot
2020-03-26Merge pull request #2130 from nybidari:iptablesgVisor bot
PiperOrigin-RevId: 303208407
2020-03-26Merge release-20200219.0-247-gfbe8046 (automated)gVisor bot
2020-03-26Handle IPv6 Fragment & Routing extension headersGhanan Gowripalan
Enables the reassembly of fragmented IPv6 packets and handling of the Routing extension header with a Segments Left value of 0. Atomic fragments are handled as described in RFC 6946 to not interfere with "normal" fragment traffic. No specific routing header type is supported. Note, the stack does not yet support sending ICMPv6 error messages in response to IPv6 packets that cannot be handled/parsed. That will come in a later change (Issue #2211). Test: - header_test.TestIPv6RoutingExtHdr - header_test.TestIPv6FragmentExtHdr - header_test.TestIPv6ExtHdrIterErr - header_test.TestIPv6ExtHdrIter - ipv6_test.TestReceiveIPv6ExtHdrs - ipv6_test.TestReceiveIPv6Fragments RELNOTES: n/a PiperOrigin-RevId: 303189584
2020-03-26Support owner matching for iptables.Nayana Bidari
This feature will match UID and GID of the packet creator, for locally generated packets. This match is only valid in the OUTPUT and POSTROUTING chains. Forwarded packets do not have any socket associated with them. Packets from kernel threads do have a socket, but usually no owner.
2020-03-26Add IPv4 to bind_to_device distribution testJay Zhuang
PiperOrigin-RevId: 303156734
2020-03-26Merge release-20200219.0-239-gc647967 (automated)gVisor bot
2020-03-26Clean up transport_demuxer.go and testJay Zhuang
- Change receiver of endpoint lookup functions - Remove unused struct fields and functions in test - s/%v/%s/ for errors - Capitalize NIC https://github.com/golang/go/wiki/CodeReviewComments#initialisms PiperOrigin-RevId: 303119580
2020-03-25Merge release-20200219.0-224-gd04adeb (automated)gVisor bot
2020-03-25Fix data-race in endpoint.ReadinessBhasker Hariharan
PiperOrigin-RevId: 302924789
2020-03-24Merge release-20200219.0-222-gc8eeedc (automated)gVisor bot
2020-03-24Add support for setting TCP segment hash.Bhasker Hariharan
This allows the link layer endpoints to consistenly hash a TCP segment to a single underlying queue in case a link layer endpoint does support multiple underlying queues. Updates #231 PiperOrigin-RevId: 302760664
2020-03-24Merge release-20200219.0-220-g7e4073a (automated)gVisor bot
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