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path: root/pkg/tcpip/transport/tcp
AgeCommit message (Collapse)Author
2021-11-08Merge release-20211101.0-26-g84b38f4c6 (automated)gVisor bot
2021-11-08Add reference counting to packet buffers.Lucas Manning
PiperOrigin-RevId: 408426639
2021-11-05Merge release-20211101.0-19-gd80af5f8b (automated)gVisor bot
2021-11-04Remove id from sleep.Sleeper API.Adin Scannell
In a subsequent change, the Sleeper API will be plumbed through and used for arbitrary task wakeups. This requires a non-static association of Wakers and Sleepers, which means that a fixed ID no longer works. This is a relatively simple change that removes the ID from the Waker association, and simply uses the Waker pointer itself. That change also makes minor improvements to the tests to ensure that the benchmarks are more representative by removing goroutine start from the hot path (and uses Wakers for required synchronization), adds assertion checks to AddWaker, and clears relevant fields during Done (to allow assertions to pass). PiperOrigin-RevId: 407719630
2021-10-12Merge release-20210927.0-64-ge54ee7a99 (automated)gVisor bot
2021-10-12Create constants for Keepalive defaults.Bhasker Hariharan
Fixes #6725 PiperOrigin-RevId: 402683244
2021-10-07Merge release-20210927.0-49-g487651ac4 (automated)gVisor bot
2021-10-07Add a new metric to detect the number of spurious loss recoveries.Nayana Bidari
- Implements RFC 3522 (Eifel detection algorithm) to detect if the connection entered loss recovery unnecessarily. - Added a new metric to count the total number of spurious loss recoveries. - Added tests to verify the new metric. PiperOrigin-RevId: 401637359
2021-10-07Modify the TCP test to receive re-transmitted packet before sending ACK.Nayana Bidari
TestRACKWithWindowFull was sending ACK for the last packet to avoid TLP. But, sometimes the ACK is delayed and the sender sends the re-transmitted packet before receiving ACK. The test is now modified to expect the re-transmitted packet always and then send a DSACK to avoid entering recovery. Before: http://sponge2/6473db18-137a-4afb-9d60-c3eafd236ea9 After: http://sponge2/6a0f744c-7ea3-40fa-8f76-68503bf142ca PiperOrigin-RevId: 401606848
2021-10-04Merge release-20210927.0-28-g6c1237da0 (automated)gVisor bot
2021-10-04Reply to invalid ACKs even when accept queue is fullArthur Sfez
Before checking if there is space in the accept queue, the listener should verify that the cookie is valid. If it is not, instead of silently dropping the packet, reply with an RST. Fixes #6683 PiperOrigin-RevId: 400807346
2021-10-01Merge release-20210921.0-48-g0db2ab932 (automated)gVisor bot
2021-10-01Move pendingEndpoints to acceptQueueTamir Duberstein
This obsoletes the need for the pendingMu and pending, since they are redundant with acceptMu and pendingAccepted. Fixes #6671. PiperOrigin-RevId: 400162391
2021-09-29Merge release-20210921.0-42-gf4340b0c9 (automated)gVisor bot
2021-09-29Avoid comparisons to zero value of acceptQueueTamir Duberstein
PiperOrigin-RevId: 399765414
2021-09-29Merge release-20210921.0-41-g36b36a8a7 (automated)gVisor bot
2021-09-29Rename accepted -> acceptQueueTamir Duberstein
Rename cap -> capacity to avoid collision with the builtin. PiperOrigin-RevId: 399753630
2021-09-29Merge release-20210921.0-40-g5aa37994c (automated)gVisor bot
2021-09-29Remove syncRcvdCountTamir Duberstein
This is redundant with listenContext.pendingEndpoints PiperOrigin-RevId: 399722472
2021-09-28Merge release-20210921.0-38-gfa4c30c63 (automated)gVisor bot
2021-09-28Inline handleSynSegmentTamir Duberstein
This function has only one caller. Remove segment reference count manipulation since it is only used synchronously. PiperOrigin-RevId: 399525343
2021-09-27Merge release-20210921.0-35-gdc64617d5 (automated)gVisor bot
2021-09-27Implement S/R for StatsTamir Duberstein
PiperOrigin-RevId: 399276940
2021-09-27Merge release-20210921.0-33-g455924ee1 (automated)gVisor bot
2021-09-27Store pending endpoints in a setTamir Duberstein
There's no need for synthetic keys here. PiperOrigin-RevId: 399263134
2021-09-23Merge release-20210921.0-16-g603de33b7 (automated)gVisor bot
2021-09-23Avoid listenContext.listenEP when it is the receiverTamir Duberstein
This circular reference is misleading at best, and the various code and commentary that claim `listenEP` can be nil are impossible by definition. Add checklocks annotations to enforce preconditions. PiperOrigin-RevId: 398517574
2021-09-23Merge release-20210921.0-12-gd87725451 (automated)gVisor bot
2021-09-22Track UDP connectionsGhanan Gowripalan
This will enable NAT to be performed on UDP packets that are sent in response to packets sent by the stack. This will also enable ICMP errors to be properly NAT-ed in response to UDP packets (#5916). Updates #5915. PiperOrigin-RevId: 398373251
2021-09-22Fold rcv_test into tcp_testTamir Duberstein
This prevents go module errors of the form found packages tcp (accept.go) and rcv (rcv_test.go) in ... PiperOrigin-RevId: 398370042
2021-09-22Merge release-20210906.0-55-g0ed53e5e9 (automated)gVisor bot
2021-09-21Handle Shutdown on connecting tcp socketArthur Sfez
Fixes #6495 PiperOrigin-RevId: 398121921
2021-09-21Merge release-20210906.0-54-gc633a7f9d (automated)gVisor bot
2021-09-21Deliver endpoints to the accept queue synchronously when possibleArthur Sfez
Before this change, when a new connection was created after receiving an ACK that matched a SYN-cookie, it was always delivered asynchronously to the accept queue. There was a chance that the listening endpoint would process a SYN from another client before the delivery happened, and the listening endpoint would not know yet that the queue was about to be full, once the delivery happened. Now, when an ACK matching a SYN-cookie is received, the new endpoint is created and moved to the accept queue synchronously, while holding the accept lock. Fixes #6545 PiperOrigin-RevId: 398107254
2021-09-15Pass address properties in a single structTony Gong
Replaced the current AddAddressWithOptions method with AddAddressWithProperties which passes all address properties in a single AddressProperties type. More properties that need to be configured in the future are expected, so adding a type makes adding them easier. PiperOrigin-RevId: 396930729
2021-09-07Merge release-20210830.0-24-gdfc518005 (automated)gVisor bot
2021-09-07Remove protocolMainLoop unused return valueArthur Sfez
PiperOrigin-RevId: 395325998
2021-09-02Merge release-20210823.0-43-g2d3919532 (automated)gVisor bot
2021-09-01Out-of-order segment should not block in-sequence segments.Bhasker Hariharan
For a small receive buffer the first out-of-order segment will get accepted and fill up the receive buffer today. This change now includes the size of the out-of-order segment when checking whether to queue the out of order segment or not. PiperOrigin-RevId: 394351309
2021-08-30Merge release-20210823.0-29-g9625071e6 (automated)gVisor bot
2021-08-30Avoid pseudo endpoint for TSVal generationZeling Feng
PiperOrigin-RevId: 393808461
2021-08-26Merge release-20210816.0-45-gec46befd1 (automated)gVisor bot
2021-08-26Centralize TCP timestamp logicTamir Duberstein
Remove freestanding functions that convert time values to raw integers; centralize time->uint32 logic in methods on tcp.endpoint. Importantly, the knowledge that TSVal is in milliseconds now lives in adjacent functions rather than being spread around various files. Incidental cleanup: - Remove unused constant - Remove redundant conversion - Remove redundant parentheses - Add missing error check PiperOrigin-RevId: 393184768
2021-08-26Merge release-20210816.0-44-g9f3fa7635 (automated)gVisor bot
2021-08-26Avoid unhandled error warningsTamir Duberstein
PiperOrigin-RevId: 393104589
2021-08-26Merge release-20210816.0-43-gc408789ed (automated)gVisor bot
2021-08-26Remove unused argumentTamir Duberstein
PiperOrigin-RevId: 393100095
2021-08-26Merge release-20210816.0-42-g19056957e (automated)gVisor bot
2021-08-26Pass must-not-be-nil by valueTamir Duberstein
PiperOrigin-RevId: 393095246
2021-08-25Improve TestTimestampSynCookiesZeling Feng
.. by advancing the clock so that NowMonotonic does not return 0. PiperOrigin-RevId: 393005373
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