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2021-01-16Merge release-20210112.0-38-gfd5b52c87 (automated)gVisor bot
2021-01-15Only pass stack.Route's fields to LinkEndpointsGhanan Gowripalan
stack.Route is used to send network packets and resolve link addresses. A LinkEndpoint does not need to do either of these and only needs the route's fields at the time of the packet write request. Since LinkEndpoints only need the route's fields when writing packets, pass a stack.RouteInfo instead. PiperOrigin-RevId: 352108405
2020-12-28Merge release-20201208.0-89-g3ff7324df (automated)gVisor bot
2020-12-03Make `stack.Route` thread safePeter Johnston
Currently we rely on the user to take the lock on the endpoint that owns the route, in order to modify it safely. We can instead move `Route.RemoteLinkAddress` under `Route`'s mutex, and allow non-locking and thread-safe access to other fields of `Route`. PiperOrigin-RevId: 345461586
2020-11-18Introduce stack.WritePacketToRemote, remove LinkEndpoint.WriteRawPacketBruno Dal Bo
Redefine stack.WritePacket into stack.WritePacketToRemote which lets the NIC decide whether to append link headers. PiperOrigin-RevId: 343071742
2020-10-16Don't include link header when forwarding packetsGhanan Gowripalan
Before this change, if a link header was included in an incoming packet that is forwarded, the packet that gets sent out will take the original packet and add a link header to it while keeping the old link header. This would make the sent packet look like: OUTGOING LINK HDR | INCOMING LINK HDR | NETWORK HDR | ... Obviously this is incorrect as we should drop the incoming link header and only include the outgoing link header. This change fixes this bug. Test: integration_test.TestForwarding PiperOrigin-RevId: 337571447
2020-10-09Automated rollback of changelist 336304024Ghanan Gowripalan
PiperOrigin-RevId: 336339194
2020-10-09Automated rollback of changelist 336185457Bhasker Hariharan
PiperOrigin-RevId: 336304024
2020-10-08Do not resolve routes immediatelyGhanan Gowripalan
When a response needs to be sent to an incoming packet, the stack should consult its neighbour table to determine the remote address's link address. When an entry does not exist in the stack's neighbor table, the stack should queue the packet while link resolution completes. See comments. PiperOrigin-RevId: 336185457
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