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2020-02-27Merge release-20200219.0-52-gabf7ebc (automated)gVisor bot
2020-02-27Internal change.Nayana Bidari
PiperOrigin-RevId: 297638665
2020-02-25Merge release-20200219.0-41-g5f1f9dd (automated)gVisor bot
2020-02-25Use link-local source address for link-local multicastGhanan Gowripalan
Tests: - header_test.TestIsV6LinkLocalMulticastAddress - header_test.TestScopeForIPv6Address - stack_test.TestIPv6SourceAddressSelectionScopeAndSameAddress PiperOrigin-RevId: 297215576
2020-02-25Deflake TestCurrentConnectedIncrement.Bhasker Hariharan
TestCurrentConnectedIncrement fails consistently under gotsan due to the sleep to check metrics is exactly the same as the TIME-WAIT duration. Under gotsan things can be slow enough that the increment test is done before the protocol goroutine is run after the TIME-WAIT timer expires and does its cleanup. Increasing the sleep from 1s to 1.2s makes the test pass consistently. PiperOrigin-RevId: 297160181
2020-02-24Merge release-20200219.0-27-gc37b196 (automated)gVisor bot
2020-02-24Add support for tearing down protocol dispatchers and TIME_WAIT endpoints.Ian Gudger
Protocol dispatchers were previously leaked. Bypassing TIME_WAIT is required to test this change. Also fix a race when a socket in SYN-RCVD is closed. This is also required to test this change. PiperOrigin-RevId: 296922548
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
2020-02-21Merge release-20200211.0-62-ga155a23 (automated)gVisor bot
2020-02-21Attach LinkEndpoint to NetworkDispatcher immediatelyGhanan Gowripalan
Tests: stack_test.TestAttachToLinkEndpointImmediately PiperOrigin-RevId: 296474068
2020-02-21Merge release-20200211.0-59-g97c0724 (automated)gVisor bot
2020-02-21Use Route.MaxHeaderLength when constructing NDP RSGhanan Gowripalan
Test: stack_test.TestRouterSolicitation PiperOrigin-RevId: 296454766
2020-02-20Merge release-20200211.0-57-g4a73bae (automated)gVisor bot
2020-02-20Initial network namespace support.gVisor bot
TCP/IP will work with netstack networking. hostinet doesn't work, and sockets will have the same behavior as it is now. Before the userspace is able to create device, the default loopback device can be used to test. /proc/net and /sys/net will still be connected to the root network stack; this is the same behavior now. Issue #1833 PiperOrigin-RevId: 296309389
2020-02-20Merge release-20200211.0-56-g67b615b (automated)gVisor bot
2020-02-20Support disabling a NICgVisor bot
- Disabled NICs will have their associated NDP state cleared. - Disabled NICs will not accept incoming packets. - Writes through a Route with a disabled NIC will return an invalid endpoint state error. - stack.Stack.FindRoute will not return a route with a disabled NIC. - NIC's Running flag will report the NIC's enabled status. Tests: - stack_test.TestDisableUnknownNIC - stack_test.TestDisabledNICsNICInfoAndCheckNIC - stack_test.TestRoutesWithDisabledNIC - stack_test.TestRouteWritePacketWithDisabledNIC - stack_test.TestStopStartSolicitingRouters - stack_test.TestCleanupNDPState - stack_test.TestAddRemoveIPv4BroadcastAddressOnNICEnableDisable - stack_test.TestJoinLeaveAllNodesMulticastOnNICEnableDisable PiperOrigin-RevId: 296298588
2020-02-19Merge release-20200211.0-42-gdbf37bf (automated)gVisor bot
2020-02-18Fix mis-named comment.Kevin Krakauer
2020-02-18Merge release-20200211.0-38-g56fd950 (automated)gVisor bot
2020-02-18Enable IPV6_RECVTCLASS socket option for datagram socketsgVisor bot
Added the ability to get/set the IP_RECVTCLASS socket option on UDP endpoints. If enabled, traffic class from the incoming Network Header passed as ancillary data in the ControlMessages. Adding Get/SetSockOptBool to decrease the overhead of getting/setting simple options. (This was absorbed in a CL that will be landing before this one). Test: * Added unit test to udp_test.go that tests getting/setting as well as verifying that we receive expected TOS from incoming packet. * Added a syscall test for verifying getting/setting * Removed test skip for existing syscall test to enable end to end test. PiperOrigin-RevId: 295840218
2020-02-18Merge release-20200211.0-31-g7fdb609 (automated)gVisor bot
2020-02-13We can now create and jump in iptables. For example:Kevin Krakauer
$ iptables -N foochain $ iptables -A INPUT -j foochain
2020-02-13Merge release-20200211.0-13-g16308b9 (automated)gVisor bot
2020-02-13Merge pull request #1791 from kevinGC:uchainsgVisor bot
PiperOrigin-RevId: 294957297
2020-02-13Merge release-20200211.0-11-g69bf39e (automated)gVisor bot
2020-02-13Internal change.gVisor bot
PiperOrigin-RevId: 294952610
2020-02-12iptables: User chainsKevin Krakauer
- Adds creation of user chains via `-N <chainname>` - Adds `-j RETURN` support for built-in chains, which triggers the chain's underflow rule (usually the default policy). - Adds tests for chain creation, default policies, and `-j RETURN' from built-in chains.
2020-02-11Merge release-20200127.0-131-gb8e22e2 (automated)gVisor bot
2020-02-11Disallow duplicate NIC names.gVisor bot
PiperOrigin-RevId: 294500858
2020-02-11Merge release-20200127.0-130-g9be46e5 (automated)gVisor bot
2020-02-11Merge release-20200127.0-127-g0dd9ee0 (automated)gVisor bot
2020-02-10Merge pull request #1775 from kevinGC:tcp-matchers-submitgVisor bot
PiperOrigin-RevId: 294340468
2020-02-07Merge release-20200127.0-96-gca30dfa (automated)gVisor bot
2020-02-06Send DAD event when DAD resolves immediatelyGhanan Gowripalan
Previously, a DAD event would not be sent if DAD was disabled. This allows integrators to do some work when an IPv6 address is bound to a NIC without special logic that checks if DAD is enabled. Without this change, integrators would need to check if a NIC has DAD enabled when an address is auto-generated. If DAD is enabled, it would need to delay the work until the DAD completion event; otherwise, it would need to do the work in the address auto-generated event handler. Test: stack_test.TestDADDisabled PiperOrigin-RevId: 293732914
2020-02-06Merge branch 'master' into tcp-matchers-submitKevin Krakauer
2020-02-07Merge release-20200127.0-94-g3700221 (automated)gVisor bot
2020-02-06Auto-generate link-local address as a SLAAC addressGhanan Gowripalan
Auto-generated link-local addresses should have the same lifecycle hooks as global SLAAC addresses. The Stack's NDP dispatcher should be notified when link-local addresses are auto-generated and invalidated. They should also be removed when a NIC is disabled (which will be supported in a later change). Tests: - stack_test.TestNICAutoGenAddrWithOpaque - stack_test.TestNICAutoGenAddr PiperOrigin-RevId: 293706760
2020-02-07Merge release-20200127.0-92-g940d255 (automated)gVisor bot
2020-02-06Perform DAD on IPv6 addresses when enabling a NICGhanan Gowripalan
Addresses may be added before a NIC is enabled. Make sure DAD is performed on the permanent IPv6 addresses when they get enabled. Test: - stack_test.TestDoDADWhenNICEnabled - stack.TestDisabledRxStatsWhenNICDisabled PiperOrigin-RevId: 293697429
2020-02-06Merge release-20200127.0-90-g736775e (automated)gVisor bot
2020-02-06Make gonet consistent both internally and with the net package.Ian Gudger
The types gonet.Conn and gonet.PacketConn were confusingly named as both implemented net.Conn. Further, gonet.Conn was perhaps unexpectedly TCP-specific (net.Conn is not). This change renames them to gonet.TCPConn and gonet.UDPConn. Renames gonet.NewListener to gonet.ListenTCP and adds a new gonet.NewTCPListner function to be consistent with both the gonet.DialXxx and gonet.NewXxxConn functions as well as net.ListenTCP. Updates #1632 PiperOrigin-RevId: 293671303
2020-02-06Merge release-20200127.0-88-g6bd59b4 (automated)gVisor bot
2020-02-06Update link address for targets of Neighbor AdvertsGhanan Gowripalan
Get the link address for the target of an NDP Neighbor Advertisement from the NDP Target Link Layer Address option. Tests: - ipv6.TestNeighorAdvertisementWithTargetLinkLayerOption - ipv6.TestNeighorAdvertisementWithInvalidTargetLinkLayerOption PiperOrigin-RevId: 293632609
2020-02-06Merge release-20200127.0-85-g1b6a12a (automated)gVisor bot
2020-02-05Add notes to relevant tests.Adin Scannell
These were out-of-band notes that can help provide additional context and simplify automated imports. PiperOrigin-RevId: 293525915
2020-02-06Merge release-20200127.0-84-gf3d9560 (automated)gVisor bot
2020-02-05recv() on a closed TCP socket returns ENOTCONNEyal Soha
From RFC 793 s3.9 p58 Event Processing: If RECEIVE Call arrives in CLOSED state and the user has access to such a connection, the return should be "error: connection does not exist" Fixes #1598 PiperOrigin-RevId: 293494287
2020-02-05Merge branch 'master' into tcp-matchers-submitKevin Krakauer
2020-02-05Merge release-20200127.0-80-g665b614 (automated)gVisor bot
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