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2020-04-21Merge release-20200323.0-199-g120d3b5 (automated)gVisor bot
2020-04-21Automated rollback of changelist 307477185gVisor bot
PiperOrigin-RevId: 307598974
2020-04-20Merge release-20200323.0-195-g07b1b4c (automated)gVisor bot
2020-04-17Remove View.First() and View.RemoveFirst()Kevin Krakauer
These methods let users eaily break the VectorisedView abstraction, and allowed netstack to slip into pseudo-enforcement of the "all headers are in the first View" invariant. Removing them and replacing with PullUp(n) breaks this reliance and will make it easier to add iptables support and rework network buffer management. The new View.PullUp(n) method is low cost in the common case, when when all the headers fit in the first View.
2020-04-17Merge release-20200323.0-175-g6c225ea (automated)gVisor bot
2020-04-17Allow caller-defined sinks for packet sniffing.Tamir Duberstein
PiperOrigin-RevId: 307053624
2020-04-17Merge release-20200323.0-171-ge7dcd94 (automated)gVisor bot
2020-04-16Properly delegate WaitTamir Duberstein
PiperOrigin-RevId: 306959393
2020-04-15Merge release-20200323.0-159-g7c13546 (automated)gVisor bot
2020-04-15Deduplicate packet loggingTamir Duberstein
PiperOrigin-RevId: 306677789
2020-04-15Merge release-20200323.0-156-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
2020-04-10Merge release-20200323.0-119-g7812661 (automated)gVisor bot
2020-04-08Fix all printf formatting errors.Adin Scannell
Updates #2243
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
2020-03-24Merge 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
2020-03-24Move tcpip.PacketBuffer and IPTables to stack package.Bhasker Hariharan
This is a precursor to be being able to build an intrusive list of PacketBuffers for use in queuing disciplines being implemented. Updates #2214 PiperOrigin-RevId: 302677662
2020-03-16Merge release-20200219.0-182-g69da428 (automated)gVisor bot
2020-03-16Enable ARP resolution in TAP devices.Ting-Yu Wang
PiperOrigin-RevId: 301208471
2020-03-16Merge release-20200219.0-179-g52758e1 (automated)gVisor bot
2020-03-16Prevent vnetHdr from escaping in WritePacket.Bhasker Hariharan
PiperOrigin-RevId: 301157950
2020-03-13Merge release-20200219.0-172-g6d4497d (automated)gVisor bot
2020-03-13Fix typoMichael Pratt
PiperOrigin-RevId: 300832988
2020-02-21Merge release-20200211.0-65-gb8f56c7 (automated)gVisor bot
2020-02-21Implement tap/tun device in vfs.Ting-Yu Wang
PiperOrigin-RevId: 296526279
2020-02-06Merge release-20200127.0-85-g1b6a12a (automated)gVisor bot
2020-02-04Merge release-20200127.0-65-g95ce8bb (automated)gVisor bot
2020-01-31Merge release-20200127.0-48-g77bf586 (automated)gVisor bot
2020-01-31Use multicast Ethernet address for multicast NDPGhanan Gowripalan
As per RFC 2464 section 7, an IPv6 packet with a multicast destination address is transmitted to the mapped Ethernet multicast address. Test: - ipv6.TestLinkResolution - stack_test.TestDADResolve - stack_test.TestRouterSolicitation PiperOrigin-RevId: 292610529
2020-01-27Merge release-20200115.0-104-g6b14be4 (automated)gVisor bot
2020-01-27Refactor to hide C from channel.Endpoint.Ting-Yu Wang
This is to aid later implementation for /dev/net/tun device. PiperOrigin-RevId: 291746025
2020-01-27Standardize on tools directory.Adin Scannell
PiperOrigin-RevId: 291745021
2020-01-10Merge release-20191213.0-96-g27500d5 (automated)gVisor bot
2020-01-09New sync package.Ian Gudger
* Rename syncutil to sync. * Add aliases to sync types. * Replace existing usage of standard library sync package. This will make it easier to swap out synchronization primitives. For example, this will allow us to use primitives from github.com/sasha-s/go-deadlock to check for lock ordering violations. Updates #1472 PiperOrigin-RevId: 289033387
2019-12-11Merge release-20191129.0-48-g0d02726 (automated)gVisor bot
2019-11-25Merge release-20191114.0-27-g2b1b51f (automated)gVisor bot
2019-11-25Fix panic in sniffer.Kevin Krakauer
Packets written via SOCK_RAW are guaranteed to have network headers, but not transport headers. Check first whether there are enough bytes left in the packet to contain a transport header before attempting to parse it. PiperOrigin-RevId: 282363895
2019-11-23Cleanup visibility.Adin Scannell
PiperOrigin-RevId: 282194656
2019-11-22Merge release-20191114.0-22-g9db08c4 (automated)gVisor bot
2019-11-22Use PacketBuffers with GSO.Kevin Krakauer
PiperOrigin-RevId: 282045221
2019-11-16Merge release-20191104.0-48-g5107e6b (automated)gVisor bot
2019-11-15Automated rollback of changelist 280594395Bhasker Hariharan
PiperOrigin-RevId: 280763655
2019-11-15Merge release-20191104.0-45-g23574b1 (automated)gVisor bot
2019-11-14Fix panic when logging raw packets via sniffer.Kevin Krakauer
Sniffer assumed that outgoing packets have transport headers, but users can write packets via SOCK_RAW with arbitrary transport headers that netstack doesn't know about. We now explicitly check for the presence of network and transport headers before assuming they exist. PiperOrigin-RevId: 280594395
2019-11-14Merge release-20191104.0-40-g3f7d937 (automated)gVisor bot
2019-11-14Use PacketBuffers for outgoing packets.Kevin Krakauer
PiperOrigin-RevId: 280455453
2019-11-06Merge release-20190806.1-375-ge1b21f3 (automated)gVisor bot
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