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2020-11-13Merge release-20201030.0-91-g6c0f53002 (automated)gVisor bot
2020-11-13Decrement TTL/Hop Limit when forwarding IP packetsGhanan Gowripalan
If the packet must no longer be forwarded because its TTL/Hop Limit reaches 0, send an ICMP Time Exceeded error to the source. Required as per relevant RFCs. See comments in code for RFC references. Fixes #1085 Tests: - ipv4_test.TestForwarding - ipv6.TestForwarding PiperOrigin-RevId: 342323610
2020-11-13Merge release-20201030.0-90-gd5e17d2db (automated)gVisor bot
2020-11-13Disable save/restore in PartialBadBufferTest.SendMsgTCP.Jamie Liu
PiperOrigin-RevId: 342314586
2020-11-13Merge release-20201030.0-89-g7fff51e50 (automated)gVisor bot
2020-11-13Refactor loss recovery in TCP.Nayana Bidari
The current implementation of loss recovery algorithms SACK and NewReno are in the same file(snd.go). The functions have multiple checks to see which one is currently used by the endpoint. This CL will refactor and separate the implementation of existing recovery algorithms which will help us to implement new recovery algorithms(such as RACK) with less changes to the existing code. There is no change in the behavior. PiperOrigin-RevId: 342312166
2020-11-13Merge release-20201030.0-88-g8ba2f0428 (automated)gVisor bot
2020-11-13Automated rollback of changelist 341640485Dean Deng
PiperOrigin-RevId: 342297902
2020-11-13Merge release-20201030.0-87-g280cf4687 (automated)gVisor bot
2020-11-13Minor fdchannel fixes.Jamie Liu
- Don't close fdchannel.Endpoint.sockfd in Shutdown(), while it still may be in use. - Don't call runtime.enter/exitsyscall from RecvFDNonblock(). PiperOrigin-RevId: 342221770
2020-11-13Merge release-20201030.0-86-ge869e2c7c (automated)gVisor bot
2020-11-13fs/tmpfs: change regularFile.size atomicallyAndrei Vagin
PiperOrigin-RevId: 342221309
2020-11-13Merge release-20201030.0-85-gcc1b20590 (automated)gVisor bot
2020-11-13fs/tmpfs: use atomic operations to access inode.modeAndrei Vagin
PiperOrigin-RevId: 342214859
2020-11-13Merge release-20201030.0-84-g8e6963491 (automated)gVisor bot
2020-11-12Deflake tcp_socket test.Mithun Iyer
Increase the wait time for the thread to be blocked on read/write syscall. PiperOrigin-RevId: 342204627
2020-11-13Merge release-20201030.0-83-g5bb64ce1b (automated)gVisor bot
2020-11-12Refactor SOL_SOCKET optionsNayana Bidari
Store all the socket level options in a struct and call {Get/Set}SockOpt on this struct. This will avoid implementing socket level options on all endpoints. This CL contains implementing one socket level option for tcp and udp endpoints. PiperOrigin-RevId: 342203981
2020-11-13Merge release-20201030.0-82-gbf392dcc7 (automated)gVisor bot
2020-11-12Allow goid.Get() to be used outside of race builds.Jamie Liu
PiperOrigin-RevId: 342179912
2020-11-13Merge release-20201030.0-81-gcf47c8b4a (automated)gVisor bot
2020-11-12Improve shim debug loggingFabricio Voznika
- Add log statements in service entry points. - Propagate `-debug` flag from shim invokation to the service - Load options when shim process is invoked to ensure runsc commands use the correct set of options, e.g. --debug --debug-logs=... - Add debug options to the shim configuration directly, so it doesn't rely on containerd configuration (and restart) to enable shim debug. - Save shim logs to dedicated file, so it's easier to read logs. They would be mixed with containerd logs and hard to distinguish otherwise. PiperOrigin-RevId: 342179868
2020-11-13Merge release-20201030.0-80-g638d64c63 (automated)gVisor bot
2020-11-12Change AllocationSize to SizeWithPadding as requestedJulian Elischer
RELNOTES: n/a PiperOrigin-RevId: 342176296
2020-11-13Merge release-20201030.0-79-g62db1fad2 (automated)gVisor bot
2020-11-12Fix misuses of kernel.Task as context.Context.Jamie Liu
kernel.Task can only be used as context.Context by that Task's task goroutine. This is violated in at least two places: - In any case where one thread accesses the /proc/[tid] of any other thread, passing the kernel.Task for [tid] as the context.Context is incorrect. - Task.rebuildTraceContext() may be called by Kernel.RebuildTraceContexts() outside the scope of any task goroutine. Fix these (as well as a data race on Task.traceContext discovered during the course of finding the latter). PiperOrigin-RevId: 342174404
2020-11-13Merge release-20201030.0-78-gf01f62387 (automated)gVisor bot
2020-11-12Add children names into verity hashChong Cai
children names map can be used to verify whether a child is expected during walking, so that we can detect unexpected modifications that deleted/renamed both the target file and the corresponding merkle tree file. PiperOrigin-RevId: 342170715
2020-11-13Merge release-20201030.0-77-gd700ba22a (automated)gVisor bot
2020-11-12Pad with a loop rather than a copy from an allocation.Julian Elischer
Add a unit test for ipv4.Encode and a round trip test. PiperOrigin-RevId: 342169517
2020-11-13Merge release-20201030.0-76-g74be0dd0d (automated)gVisor bot
2020-11-12Remove TESTONLY tag from vfs2 flagFabricio Voznika
Updates #1035 PiperOrigin-RevId: 342168926
2020-11-13Merge release-20201030.0-75-g468caff45 (automated)gVisor bot
2020-11-12Rename kernel.TaskContext to kernel.TaskImage.Jamie Liu
This reduces confusion with context.Context (which is also relevant to kernel.Tasks) and is consistent with existing function kernel.LoadTaskImage(). PiperOrigin-RevId: 342167298
2020-11-13Merge release-20201030.0-74-g1a972411b (automated)gVisor bot
2020-11-12Move packet handling to NetworkEndpointGhanan Gowripalan
The NIC should not hold network-layer state or logic - network packet handling/forwarding should be performed at the network layer instead of the NIC. Fixes #4688 PiperOrigin-RevId: 342166985
2020-11-13Merge release-20201030.0-73-gae7ab0a33 (automated)gVisor bot
2020-11-12Filter dentries with non-zero refs in VFS2 gofer/overlay checks.Jamie Liu
PiperOrigin-RevId: 342161204
2020-11-13Merge release-20201030.0-72-g2a1974b07 (automated)gVisor bot
2020-11-12[infra] Do not use debug flags for testing.Ayush Ranjan
This causes some networking related tests to take a very long time. Upon failure, tests can be manually run with debug flags to debug. As is the strace logs are not available from a test run. PiperOrigin-RevId: 342156294
2020-11-13Merge release-20201030.0-71-ga47d38495 (automated)gVisor bot
2020-11-12Refactor merkletree testsChong Cai
Separate the test cases from TestVerify so that the test names reflect the test case better. PiperOrigin-RevId: 342152754
2020-11-12Merge release-20201030.0-70-gac62743e3 (automated)gVisor bot
2020-11-11Read fsimpl/tmpfs timestamps atomically.Jamie Liu
PiperOrigin-RevId: 341982672
2020-11-12Merge release-20201030.0-69-g447452fb1 (automated)gVisor bot
2020-11-11Add documentation for reference counting.Dean Deng
Fixes #1486. PiperOrigin-RevId: 341966640
2020-11-11Merge release-20201030.0-68-g9c4102896 (automated)gVisor bot
2020-11-11Teach netstack how to add options to IPv4 packetsJulian Elischer
Most packets don't have options but they are an integral part of the standard. Teaching the ipv4 code how to handle them will simplify future testing and use. Because Options are so rare it is worth making sure that the extra work is kept out of the fast path as much as possible. Prior to this change, all usages of the IHL field of the IPv4Fields/Encode system set it to the same constant value except in a couple of tests for bad values. From this change IHL will not be a constant as it will depend on the size of any Options. Since ipv4.Encode() now handles the options it becomes a possible source of errors to let the callers set this value, so remove it entirely and calculate the value from the size of the Options if present (or not) therefore guaranteeing a correct value. Fixes #4709 RELNOTES: n/a PiperOrigin-RevId: 341864765
2020-11-11Merge release-20201030.0-67-g792cbc06d (automated)gVisor bot
2020-11-10Add debug logs to startup benchmark.Zach Koopmans
PiperOrigin-RevId: 341757694
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