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path: root/pkg/tcpip/transport/tcp/connect.go
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2019-02-11Do not drop packets w/ missing TCP timestamps.Bhasker Hariharan
RFC7323 recommends that if the timestamp option was negotiated then all packets should carry a TCP Timestamp and any packets that do not should be dropped. Netstack implemented this behaviour. Linux OTOH does not and will accept such packets. This change makes Netstack behaviour compatible with Linux. Also now that we allow such packets, we do need to update RTO calculations based on these packets even if timestamp option is enabled. PiperOrigin-RevId: 233432268 Change-Id: I9f4742ae6b63930ac3b5e37d8c238761e6a4b29f
2018-12-13transport/tcp: remove unused error return valuesIan Gudger
PiperOrigin-RevId: 225421480 Change-Id: I1e9259b0b7e8490164e830b73338a615129c7f0e
2018-12-05sentry: skip waiting for undrain for netstack TCP endpoints in error state.Zhaozhong Ni
PiperOrigin-RevId: 224214981 Change-Id: I4c1dd5b1c856f7a4f9866a5dda44a5297e92486a
2018-11-05Merge segments in sender's writeListIan Gudger
PiperOrigin-RevId: 220185891 Change-Id: Iaea73fd7b2fa8c399b989cdcaabf4885f370df4b
2018-10-31Fix a race where keepalives could be sent while there is pending dataIan Gudger
PiperOrigin-RevId: 219571556 Change-Id: I5a1042c1cb05eb2711eb01627fd298bad6c543a6
2018-10-19Use correct company name in copyright headerIan Gudger
PiperOrigin-RevId: 217951017 Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-09-28Block for link address resolutionSepehr Raissian
Previously, if address resolution for UDP or Ping sockets required sending packets using Write in Transport layer, Resolve would return ErrWouldBlock and Write would return ErrNoLinkAddress. Meanwhile startAddressResolution would run in background. Further calls to Write using same address would also return ErrNoLinkAddress until resolution has been completed successfully. Since Write is not allowed to block and System Calls need to be interruptible in System Call layer, the caller to Write is responsible for blocking upon return of ErrWouldBlock. Now, when startAddressResolution is called a notification channel for the completion of the address resolution is returned. The channel will traverse up to the calling function of Write as well as ErrNoLinkAddress. Once address resolution is complete (success or not) the channel is closed. The caller would call Write again to send packets and check if address resolution was compeleted successfully or not. Fixes google/gvisor#5 Change-Id: Idafaf31982bee1915ca084da39ae7bd468cebd93 PiperOrigin-RevId: 214962200
2018-09-14Pass buffer.Prependable by valueTamir Duberstein
PiperOrigin-RevId: 213053370 Change-Id: I60ea89572b4fca53fd126c870fcbde74fcf52562
2018-09-12Add multicast supportTamir Duberstein
PiperOrigin-RevId: 212750821 Change-Id: I822fd63e48c684b45fd91f9ce057867b7eceb792
2018-09-05Update {LinkEndpoint,NetworkEndpoint}#WritePacket to take a VectorisedViewBert Muthalaly
Makes it possible to avoid copying or allocating in cases where DeliverNetworkPacket (rx) needs to turn around and call WritePacket (tx) with its VectorisedView. Also removes the restriction on having VectorisedViews with multiple views in the write path. PiperOrigin-RevId: 211728717 Change-Id: Ie03a65ecb4e28bd15ebdb9c69f05eced18fdfcff
2018-09-05Implement TCP keepalivesTamir Duberstein
PiperOrigin-RevId: 211670620 Change-Id: Ia8a3d8ae53a7fece1dee08ee9c74964bd7f71bb7
2018-08-27Add various statisticsTamir Duberstein
PiperOrigin-RevId: 210442599 Change-Id: I9498351f461dc69c77b7f815d526c5693bec8e4a
2018-08-23Encapsulate netstack metricsIan Gudger
PiperOrigin-RevId: 209943212 Change-Id: I96dcbc7c2ab2426e510b94a564436505256c5c79
2018-07-30netstack: support disconnect-on-save option per fdbased link.Zhaozhong Ni
PiperOrigin-RevId: 206659972 Change-Id: I5e0e035f97743b6525ad36bed2c802791609beaf
2018-07-12netstack: do not defer panicable logic in tcp main loop.Zhaozhong Ni
PiperOrigin-RevId: 204355026 Change-Id: I1a8229879ea3b58aa861a4eb4456fd7aff99863d
2018-07-10netstack: tcp socket connected state S/R support.Zhaozhong Ni
PiperOrigin-RevId: 203958972 Change-Id: Ia6fe16547539296d48e2c6731edacdd96bd6e93c
2018-07-09Fix two race conditions in tcp stack.Brian Geffon
PiperOrigin-RevId: 203880278 Change-Id: I66b790a616de59142859cc12db4781b57ea626d3
2018-07-09Switch netstack licenses to Apache 2.0.Nicolas Lacasse
Fixes #27 PiperOrigin-RevId: 203825288 Change-Id: Ie9f3a2b2c1e296b026b024f75c07da1a7e118633
2018-06-29Panic in netstack during cleanup where a FIN becomes a RST.Brian Geffon
There is a subtle bug where during cleanup with unread data a FIN can be converted to a RST, at that point the entire connection should be aborted as we're not expecting any ACKs to the RST. PiperOrigin-RevId: 202691271 Change-Id: Idae70800208ca26e07a379bc6b2b8090805d0a22
2018-06-26Automated rollback of changelist 201596247Brian Geffon
PiperOrigin-RevId: 202151720 Change-Id: I0491172c436bbb32b977f557953ba0bc41cfe299
2018-06-21netstack: tcp socket connected state S/R support.Zhaozhong Ni
PiperOrigin-RevId: 201596247 Change-Id: Id22f47b2cdcbe14aa0d930f7807ba75f91a56724
2018-06-15Replace crypto/rand with internal rand packageMichael Pratt
PiperOrigin-RevId: 200784607 Change-Id: I39aa6ee632936dcbb00fc298adccffa606e9f4c0
2018-06-05netstack: make TCP endpoint closed and error state cleanup work synchronous.Zhaozhong Ni
So that when saving TCP endpoint in these states, there is no pending or background activities. Also lift tcp network save rejection error to tcpip package. PiperOrigin-RevId: 199370748 Change-Id: Ief7b45c2a7338d12414cd7c23db95de6a9c22700
2018-05-29Automated rollback of changelist 196886839Fabricio Voznika
PiperOrigin-RevId: 198457660 Change-Id: I6ea5cf0b4cfe2b5ba455325a7e5299880e5a088a
2018-05-24Poll should wake up on ECONNREFUSED with no mask.Brian Geffon
Today poll will not wake up on a ECONNREFUSED if no poll mask is specified, which is equivalent to POLLHUP | POLLERR which are implicitly added during the poll syscall. PiperOrigin-RevId: 197967183 Change-Id: I668d0730c33701228913f2d0843b48491b642efb
2018-05-23Fix typo in TCP transportIan Gudger
PiperOrigin-RevId: 197789418 Change-Id: I86b1574c8d3b8b321348d9b101ffaef7aa15f722
2018-05-16netstack: make TCP endpoint closed and error state cleanup work synchronous.Zhaozhong Ni
So that when saving TCP endpoint in these states, there is no pending or background activities. Also lift tcp network save rejection error to tcpip package. PiperOrigin-RevId: 196886839 Change-Id: I0fe73750f2743ec7e62d139eb2cec758c5dd6698
2018-05-11netstack: TCP connecting state endpoint save / restore support.Zhaozhong Ni
PiperOrigin-RevId: 196325647 Change-Id: I850eb4a29b9c679da4db10eb164bbdf967690663
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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