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2021-02-06Merge release-20210125.0-91-gc19e049f2 (automated)gVisor bot
2021-02-06Check local address directly through NICGhanan Gowripalan
Network endpoints that wish to check addresses on another NIC-local network endpoint may now do so through the NetworkInterface. This fixes a lock ordering issue between NIC removal and link resolution. Before this change: NIC Removal takes the stack lock, neighbor cache lock then neighbor entries' locks. When performing IPv4 link resolution, we take the entry lock then ARP would try check IPv4 local addresses through the stack which tries to obtain the stack's lock. Now that ARP can check IPv4 addreses through the NIC, we avoid the lock ordering issue, while also removing the need for stack to lookup the NIC. PiperOrigin-RevId: 356034245
2021-02-06Merge release-20210125.0-90-g83b764d9d (automated)gVisor bot
2021-02-05Batch write packets after iptables checksGhanan Gowripalan
After IPTables checks a batch of packets, we can write packets that are not dropped or locally destined as a batch instead of individually. This previously caused a bug since WritePacket* functions expect to take ownership of passed PacketBuffer{List}. WritePackets assumed the list of PacketBuffers will not be invalidated when calling WritePacket for each PacketBuffer in the list, but this is not true. WritePacket may add the passed PacketBuffer into a different list which would modify the PacketBuffer in such a way that it no longer points to the next PacketBuffer to write. Example: Given a PB list of PB_a -> PB_b -> PB_c WritePackets may be iterating over the list and calling WritePacket for each PB. When WritePacket takes PB_a, it may add it to a new list which would update pointers such that PB_a no longer points to PB_b. Test: integration_test.TestIPTableWritePackets PiperOrigin-RevId: 355969560
2021-02-06Merge release-20210125.0-89-g120c8e346 (automated)gVisor bot
2021-02-05Replace TaskFromContext(ctx).Kernel() with KernelFromContext(ctx)Ting-Yu Wang
Panic seen at some code path like control.ExecAsync where ctx does not have a Task. Reported-by: syzbot+55ce727161cf94a7b7d6@syzkaller.appspotmail.com PiperOrigin-RevId: 355960596
2021-02-06Merge release-20210125.0-88-g09afd6832 (automated)gVisor bot
2021-02-05[vfs] Handle `.` and `..` as last path component names in kernfs Rename.Ayush Ranjan
According to vfs.FilesystemImpl.RenameAt documentation: - If the last path component in rp is "." or "..", and opts.Flags contains RENAME_NOREPLACE, RenameAt returns EEXIST. - If the last path component in rp is "." or "..", and opts.Flags does not contain RENAME_NOREPLACE, RenameAt returns EBUSY. Reported-by: syzbot+6189786e64fe13fe43f8@syzkaller.appspotmail.com PiperOrigin-RevId: 355959266
2021-02-06Merge release-20210125.0-87-g24416032a (automated)gVisor bot
2021-02-05Refactor locally delivered packetsGhanan Gowripalan
Make it clear that failing to parse a looped back is not a packet sending error but a malformed received packet error. FindNetworkEndpoint returns nil when no network endpoint is found instead of an error. PiperOrigin-RevId: 355954946
2021-02-05Merge release-20210125.0-86-g3514c289a (automated)gVisor bot
2021-02-05Suppress ST1019 on generated protobufsTamir Duberstein
PiperOrigin-RevId: 355915778
2021-02-05Merge release-20210125.0-85-g71def1c58 (automated)gVisor bot
2021-02-04Lock ConnTrack before initializing bucketsGhanan Gowripalan
PiperOrigin-RevId: 355751801
2021-02-04Merge release-20210125.0-84-g41510d274 (automated)gVisor bot
2021-02-04Move getcpu() to core filter listMichael Pratt
Some versions of the Go runtime call getcpu(), so add it for compatibility. The hostcpu package already uses getcpu() on arm64. PiperOrigin-RevId: 355717757
2021-02-04Merge release-20210125.0-83-gaed9d8ce9 (automated)gVisor bot
2021-02-04Call kernfs.syntheticDir.InitRefs() on creation.Nicolas Lacasse
PiperOrigin-RevId: 355675900
2021-02-04Merge release-20210125.0-82-g63c9dd365 (automated)gVisor bot
2021-02-04images: Rework syzkaller documentation.Andrei Vagin
PiperOrigin-RevId: 355660221
2021-02-04Merge release-20210125.0-81-geaba5bc7e (automated)gVisor bot
2021-02-04Fix flaky packetimpact testNayana Bidari
PiperOrigin-RevId: 355645297
2021-02-04Merge release-20210125.0-80-gfa2d3698c (automated)gVisor bot
2021-02-04[infra] Do not recompile integration test executables each time.Ayush Ranjan
Instead build the executable into the image. PiperOrigin-RevId: 355631672
2021-02-04Merge release-20210125.0-79-gf2c881f68 (automated)gVisor bot
2021-02-03[vfs] Make sticky bit check consistent with Linux.Ayush Ranjan
Our implementation of vfs.CheckDeleteSticky was not consistent with Linux, specifically not consistent with fs/linux.h:check_sticky(). One of the biggest differences was that the vfs implementation did not allow the owner of the sticky directory to delete files inside it that belonged to other users. This change makes our implementation consistent with Linux. Also adds an integration test to check for this. This bug is also present in VFS1. Updates #3027 PiperOrigin-RevId: 355557425
2021-02-04Merge release-20210125.0-78-g0dbc11297 (automated)gVisor bot
2021-02-03Compile-time constants are constexprTamir Duberstein
PiperOrigin-RevId: 355506299
2021-02-03Merge release-20210125.0-77-g52ad6ceee (automated)gVisor bot
2021-02-03Remove gazelle noise patchTamir Duberstein
Confirmed gazelle generates no significant noise. Fix documented gazelle invocation while I'm here. PiperOrigin-RevId: 355452758
2021-02-03Merge release-20210125.0-76-gd1bb263b9 (automated)gVisor bot
2021-02-03Merge pull request #5352 from weisdd:patch-1gVisor bot
PiperOrigin-RevId: 355449206
2021-02-03Merge release-20210125.0-74-ge3bce9689 (automated)gVisor bot
2021-02-03Add a function to enable RACK in tests.Nayana Bidari
- Adds a function to enable RACK in tests. - RACK update functions are guarded behind the flag tcpRecovery. PiperOrigin-RevId: 355435973
2021-02-03Merge release-20210125.0-73-gd3113ad44 (automated)gVisor bot
2021-02-03Merge pull request #5418 from amscanne:codespacegVisor bot
PiperOrigin-RevId: 355434313
2021-02-03Merge release-20210125.0-69-g5106e66fd (automated)gVisor bot
2021-02-02Merge pull request #5373 from oke-py:docsgVisor bot
PiperOrigin-RevId: 355324521
2021-02-03Merge release-20210125.0-67-gbfad3be0b (automated)gVisor bot
2021-02-02Make ubuntutest image x86 only.Ayush Ranjan
PiperOrigin-RevId: 355315140
2021-02-02Merge release-20210125.0-66-gfb422db70 (automated)gVisor bot
2021-02-02Update go-tools to 2020.2.1Tamir Duberstein
...and a bunch of other things as I worked through the rot. Notably: - Upgrade to bazel 4.0.0 - Upgrade to Go 1.15.7 Remove go_branch stderr suppression; this made it quite difficult to see what was failing while developing this patch. PiperOrigin-RevId: 355257833
2021-02-02Merge release-20210125.0-65-gff8b308a3 (automated)gVisor bot
2021-02-02Remove call to Notify from pipe.VFSPipeFD.CopyOutFrom.Jamie Liu
This was missed in cl/351911375; pipe.VFSPipeFD.SpliceFromNonPipe already calls Notify. PiperOrigin-RevId: 355246655
2021-02-02Merge release-20210125.0-64-gfcc2468db (automated)gVisor bot
2021-02-02Add CPUSet for runsc mitigate.Zach Koopmans
PiperOrigin-RevId: 355242055
2021-02-02Merge release-20210125.0-63-g49f783fb6 (automated)gVisor bot
2021-02-02Rename HandleNDupAcks in TCP.Nayana Bidari
Rename HandleNDupAcks() to HandleLossDetected() as it will enter this when is detected after: - reorder window expires and TLP (in case of RACK) - dupAckCount >= 3 PiperOrigin-RevId: 355237858
2021-02-02Merge release-20210125.0-62-g5f7bf3152 (automated)gVisor bot
2021-02-02Stub out basic `runsc events --stat` CPU functionalityKevin Krakauer
Because we lack gVisor-internal cgroups, we take the CPU usage of the entire pod and divide it proportionally according to sentry-internal usage stats. This fixes `kubectl top pods`, which gets a pod's CPU usage by summing the usage of its containers. Addresses #172. PiperOrigin-RevId: 355229833
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