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2021-08-05Merge release-20210726.0-34-g43e3d29b9 (automated)gVisor bot
2021-08-04Implement PR_SET_CHILD_SUBREAPER when the calling task is PID 1.Nicolas Lacasse
In this case, the task is already a subreaper, so setting this bit is a noop. Updates #2323 PiperOrigin-RevId: 388828034
2021-08-04Merge release-20210726.0-32-gcbb99336c (automated)gVisor bot
2021-08-04Add Fs controlsChong Cai
Add Fs controls and implement "cat" command. PiperOrigin-RevId: 388812540
2021-08-03Merge release-20210726.0-30-g8caf231cb (automated)gVisor bot
2021-08-03Add Lifecycle controlsChong Cai
Also change runsc pause/resume cmd to access Lifecycle instead of containerManager. PiperOrigin-RevId: 388534928
2021-08-03Merge release-20210726.0-27-g8363a98c4 (automated)gVisor bot
2021-08-03Implement MSG_COPY option for msgrcv(2).Zyad A. Ali
Implement Queue.Copy and add more tests for it. Updates #135
2021-08-03Implement stubs for msgsnd(2) and msgrcv(2).Zyad A. Ali
Add support for msgsnd and msgrcv and enable syscall tests. Updates #135
2021-08-03Implement Queue.Receive.Zyad A. Ali
Receive implements the behaviour of msgrcv(2) without the MSG_COPY flag. Updates #135
2021-08-03Implement Queue.Send.Zyad A. Ali
Send implements the functionality of msgsnd(2). Updates #135
2021-08-02Merge release-20210726.0-19-g4f6c1f309 (automated)gVisor bot
2021-08-01Merge pull request #6350 from sudo-sturbia:cgroupfsgVisor bot
PiperOrigin-RevId: 388129112
2021-07-30Merge release-20210726.0-17-g979d6e7d7 (automated)gVisor bot
2021-07-30Support RTM_DELLINKZeling Feng
This change will allow us to remove the default link in a packetimpact test so we can reduce indeterministic behaviors as required in https://fxbug.dev/78430. This will also help with testing #1388. Updates #578, #1388. PiperOrigin-RevId: 387896847
2021-07-30Merge release-20210726.0-16-gc9aac64e0 (automated)gVisor bot
2021-07-30Merge pull request #6257 from zhlhahaha:2193-1gVisor bot
PiperOrigin-RevId: 387885663
2021-07-30Merge release-20210726.0-12-g62ea5c0a2 (automated)gVisor bot
2021-07-30checklinkname: rudimentary type-checking of linkname directivesMichael Pratt
This CL introduces a 'checklinkname' analyzer, which provides rudimentary type-checking that verifies that function signatures on the local and remote sides of //go:linkname directives match expected values. If the Go standard library changes the definitions of any of these function, checklinkname will flag the change as a finding, providing an error informing the gVisor team to adapt to the upstream changes. This allows us to eliminate the majority of gVisor's forward-looking negative build tags, as we can catch mismatches in testing [1]. The remaining forward-looking negative build tags are covering shared struct definitions, which I hope to add to checklinkname in a future CL. [1] Of course, semantics/requirements can change without the signature changing, so we still must be careful, but this covers the common case. PiperOrigin-RevId: 387873847
2021-07-29Merge release-20210720.0-45-g095b0d834 (automated)gVisor bot
2021-07-28Explicitly encode the pcap packet headers to reduce CPU cost of pcap generation.gVisor bot
PiperOrigin-RevId: 387513118
2021-07-28Merge release-20210720.0-44-g72c2b74ac (automated)gVisor bot
2021-07-28Add Uid/Gid/Groups fields to VFS2 /proc/[pid]/status.Jamie Liu
For comparison: ``` $ docker run --rm -it ubuntu:focal bash -c 'cat /proc/self/status' Name: cat Umask: 0022 State: R (running) Tgid: 1 Ngid: 0 Pid: 1 PPid: 0 TracerPid: 0 Uid: 0 0 0 0 Gid: 0 0 0 0 FDSize: 64 Groups: NStgid: 1 NSpid: 1 NSpgid: 1 NSsid: 1 VmPeak: 2660 kB VmSize: 2660 kB VmLck: 0 kB VmPin: 0 kB VmHWM: 528 kB VmRSS: 528 kB ... $ docker run --runtime=runsc-vfs2 --rm -it ubuntu:focal bash -c 'cat /proc/self/status' Name: cat State: R (running) Tgid: 1 Pid: 1 PPid: 0 TracerPid: 0 Uid: 0 0 0 0 Gid: 0 0 0 0 FDSize: 4 Groups: VmSize: 10708 kB VmRSS: 3124 kB VmData: 316 kB ... ``` Fixes #6374 PiperOrigin-RevId: 387465655
2021-07-28Merge release-20210720.0-43-g01f7dd442 (automated)gVisor bot
2021-07-28Merge pull request #6358 from zhlhahaha:2232gVisor bot
PiperOrigin-RevId: 387442805
2021-07-28Merge release-20210720.0-40-g44efc282f (automated)gVisor bot
2021-07-28Lock gofer.dentry.dataMu before SetAttr RPC modifying file size.Jamie Liu
PiperOrigin-RevId: 387427887
2021-07-28tunning hasSlot function and fix store wrong value in usedSlotsHoward Zhang
Make hasSlot scan allocated slot, rather than the whole slice. It is supposed to store physicalStart in usedSlot. Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2021-07-28Merge release-20210720.0-39-g964fb3ca7 (automated)gVisor bot
2021-07-27Don't create an extra fd bitmap to allocate a new fd.Andrei Vagin
2021-07-24Merge release-20210712.0-61-g9ba8c40a3 (automated)gVisor bot
2021-07-23Clean up logic for when a VFS2 gofer regular file close causes a flushf.Jamie Liu
PiperOrigin-RevId: 386577891
2021-07-23Merge release-20210712.0-59-g3d0a93000 (automated)gVisor bot
2021-07-23Don't panic on user-controlled state in semaphore syscalls.Rahat Mahmood
Reported-by: syzbot+beb099a67f670386a367@syzkaller.appspotmail.com PiperOrigin-RevId: 386521361
2021-07-23Merge release-20210712.0-58-g0eea96057 (automated)gVisor bot
2021-07-23Add support for SIOCGIFCONF ioctl in hostinet.Lucas Manning
PiperOrigin-RevId: 386511818
2021-07-22VFS2: remove ext codeKevin Krakauer
We opted to move forward with FUSE instead. PiperOrigin-RevId: 386344258
2021-07-22Merge release-20210712.0-52-g0690c25e0 (automated)gVisor bot
2021-07-22kvm: set CR0.NE = 1Andrei Vagin
CR0.NE enables internal x87 floating point error reporting when set, else enables PC style x87 error detection. On AMD, the #MF exception isn't generated if CR0.NE isn't set. PiperOrigin-RevId: 386340269
2021-07-22Merge release-20210712.0-50-g8daeda207 (automated)gVisor bot
2021-07-22Merge pull request #6108 from sudo-sturbia:msgqueue/syscallsgVisor bot
PiperOrigin-RevId: 386323389
2021-07-22Merge release-20210712.0-40-gd5fb4623e (automated)gVisor bot
2021-07-22Replace kernel package types for clone and unshare with linux package types.Jamie Liu
PiperOrigin-RevId: 386312456
2021-07-22Delete unnecessary function.Zyad A. Ali
Since cgroupfs.dir embedes cgroupfs.implStatFS, and dir.StatFS and implStatFS.StatFS are identical, dir.StatFS is not needed.
2021-07-22Merge release-20210712.0-39-gf1f746ddd (automated)gVisor bot
2021-07-21Add metric to count number of segments acknowledged by DSACK.Nayana Bidari
- Creates new metric "/tcp/segments_acked_with_dsack" to count the number of segments acked with DSACK. - Added check to verify the metric is getting incremented when a DSACK is sent in the unit tests. PiperOrigin-RevId: 386135949
2021-07-21Merge release-20210712.0-36-ga89b2f005 (automated)gVisor bot
2021-07-21Use atomics when checking for parent setgid in VFS2 tmpfs file creation.Jamie Liu
Reported-by: syzbot+59550b48e06cc0d3b638@syzkaller.appspotmail.com PiperOrigin-RevId: 386075453
2021-07-21Merge release-20210712.0-35-ga4d743db5 (automated)gVisor bot
2021-07-20Enable RACK by default in netstack.Nayana Bidari
PiperOrigin-RevId: 385944428
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