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2018-10-31Remove ipv4.endpoint.addressTamir Duberstein
This field was added in the intial implementation, before Route existed to pass the local and remote addresses to the packet-writing path. Today, the Route's members should be respected. A similar bug was previously fixed in 214650822. PiperOrigin-RevId: 219474095 Change-Id: Id2a8ee4421d2841c8d88ccb3c193c455086350ee
2018-10-23Track paths and provide a rename hook.Adin Scannell
This change also adds extensive testing to the p9 package via mocks. The sanity checks and type checks are moved from the gofer into the core package, where they can be more easily validated. PiperOrigin-RevId: 218296768 Change-Id: I4fc3c326e7bf1e0e140a454cbacbcc6fd617ab55
2018-10-19Use correct company name in copyright headerIan Gudger
PiperOrigin-RevId: 217951017 Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-09-28Change tcpip.Route.Mask to tcpip.AddressMask.Googler
PiperOrigin-RevId: 214975659 Change-Id: I7bd31a2c54f03ff52203109da312e4206701c44c
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
2018-09-26Use the ICMP target address in responsesTamir Duberstein
There is a subtle bug that is the result of two changes made when upstreaming ICMPv6 support from Fuchsia: 1) ipv6.endpoint.WritePacket writes the local address it was initialized with, rather than the provided route's local address 2) ipv6.endpoint.handleICMP doesn't set its route's local address to the ICMP target address before writing the response The result is that the ICMP response erroneously uses the target ipv6 address (rather than icmp) as its source address in the response. When trying to debug this by fixing (2), we ran into problems with bad ipv6 checksums because (1) didn't respect the local address of the route being passed to it. This fixes both problems. PiperOrigin-RevId: 214650822 Change-Id: Ib6148bf432e6428d760ef9da35faef8e4b610d69
2018-09-26Export ipv6 address helpersTamir Duberstein
This is useful for Fuchsia. PiperOrigin-RevId: 214619681 Change-Id: If5a60dd82365c2eae51a12bbc819e5aae8c76ee9
2018-09-14Remove buffer.Prependable.UsedBytesTamir Duberstein
It is the same as buffer.Prependable.View. PiperOrigin-RevId: 213064166 Change-Id: Ib33b8a2c4da864209d9a0be0a1c113be10b520d3
2018-09-14Pass buffer.Prependable by valueTamir Duberstein
PiperOrigin-RevId: 213053370 Change-Id: I60ea89572b4fca53fd126c870fcbde74fcf52562
2018-09-12Always pass buffer.VectorisedView by valueTamir Duberstein
PiperOrigin-RevId: 212757571 Change-Id: I04200df9e45c21eb64951cd2802532fa84afcb1a
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
2018-09-04Automated rollback of changelist 211156845Bhasker Hariharan
PiperOrigin-RevId: 211525182 Change-Id: I462c20328955c77ecc7bfd8ee803ac91f15858e6
2018-09-04Distinguish Element and Linker for ilist.Adin Scannell
Furthermore, allow for the specification of an ElementMapper. This allows a single "Element" type to exist on multiple inline lists, and work without having to embed the entry type. This is a requisite change for supporting a per-Inode list of Dirents. PiperOrigin-RevId: 211467497 Change-Id: If2768999b43e03fdaecf8ed15f435fe37518d163
2018-08-31Automated rollback of changelist 211103930Googler
PiperOrigin-RevId: 211156845 Change-Id: Ie28011d7eb5f45f3a0158dbee2a68c5edf22f6e0
2018-08-31ipv6: ICMP supportTamir Duberstein
This CL does NDP link-address discovery for IPv6. It includes several small changes necessary to get linux to talk to this implementation. In particular, a hop limit of 255 is necessary for ICMPv6. PiperOrigin-RevId: 211103930 Change-Id: If25370ab84c6b1decfb15de917f3b0020f2c4e0e
2018-08-27Add various statisticsTamir Duberstein
PiperOrigin-RevId: 210442599 Change-Id: I9498351f461dc69c77b7f815d526c5693bec8e4a
2018-08-02Automated rollback of changelist 207037226Zhaozhong Ni
PiperOrigin-RevId: 207125440 Change-Id: I6c572afb4d693ee72a0c458a988b0e96d191cd49
2018-08-01Move stack clock to options structIan Gudger
PiperOrigin-RevId: 207039273 Change-Id: Ib8f55a6dc302052ab4a10ccd70b07f0d73b373df
2018-08-01Automated rollback of changelist 207007153Michael Pratt
PiperOrigin-RevId: 207037226 Change-Id: I8b5f1a056d4f3eab17846f2e0193bb737ecb5428
2018-08-01stateify: convert all packages to use explicit mode.Zhaozhong Ni
PiperOrigin-RevId: 207007153 Change-Id: Ifedf1cc3758dc18be16647a4ece9c840c1c636c9
2018-07-27stateify: support explicit annotation mode; convert refs and stack packages.Zhaozhong Ni
We have been unnecessarily creating too many savable types implicitly. PiperOrigin-RevId: 206334201 Change-Id: Idc5a3a14bfb7ee125c4f2bb2b1c53164e46f29a8
2018-07-09Switch netstack licenses to Apache 2.0.Nicolas Lacasse
Fixes #27 PiperOrigin-RevId: 203825288 Change-Id: Ie9f3a2b2c1e296b026b024f75c07da1a7e118633
2018-06-15Replace crypto/rand with internal rand packageMichael Pratt
PiperOrigin-RevId: 200784607 Change-Id: I39aa6ee632936dcbb00fc298adccffa606e9f4c0
2018-05-22sentry: Add simple SIOCGIFFLAGS support (IFF_RUNNING and IFF_PROMIS).Kevin Krakauer
Establishes a way of communicating interface flags between netstack and epsocket. More flags can be added over time. PiperOrigin-RevId: 197616669 Change-Id: I230448c5fb5b7d2e8d69b41a451eb4e1096a0e30
2018-05-01Add support for ping socketsIan Gudger
PiperOrigin-RevId: 195049322 Change-Id: I09f6dd58cf10a2e50e53d17d2823d540102913c5
2018-05-01Implement SO_TIMESTAMPIan Gudger
PiperOrigin-RevId: 195047018 Change-Id: I6d99528a00a2125f414e1e51e067205289ec9d3d
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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