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2020-10-22Merge release-20201019.0-27-g1a5eb49a4 (automated)gVisor bot
2020-10-21Merge pull request #3957 from workato:auto-cgroupgVisor bot
PiperOrigin-RevId: 338372736
2020-10-20Do not even try forcing cgroups in testsKonstantin Baranov
2020-10-20Add /dev to mandatory mounts testFabricio Voznika
PiperOrigin-RevId: 338072845
2020-10-20Merge release-20201005.0-104-gcd86bd493 (automated)gVisor bot
2020-10-19Fix runsc tests on VFS2 overlay.Jamie Liu
- Check the sticky bit in overlay.filesystem.UnlinkAt(). Fixes StickyTest.StickyBitPermDenied. - When configuring a VFS2 overlay in runsc, copy the lower layer's root owner/group/mode to the upper layer's root (as in the VFS1 equivalent, boot.addOverlay()). This makes the overlay root owned by UID/GID 65534 with mode 0755 rather than owned by UID/GID 0 with mode 01777. Fixes CreateTest.CreateFailsOnUnpermittedDir, which assumes that the test cannot create files in /. - MknodTest.UnimplementedTypesReturnError assumes that the creation of device special files is not supported. However, while the VFS2 gofer client still doesn't support device special files, VFS2 tmpfs does, and in the overlay test dimension mknod() targets a tmpfs upper layer. The test initially has all capabilities, including CAP_MKNOD, so its creation of these files succeeds. Constrain these tests to VFS1. - Rename overlay.nonDirectoryFD to overlay.regularFileFD and only use it for regular files, using the original FD for pipes and device special files. This is more consistent with Linux (which gets the original inode_operations, and therefore file_operations, for these file types from ovl_fill_inode() => init_special_inode()) and fixes remaining mknod and pipe tests. - Read/write 1KB at a time in PipeTest.Streaming, rather than 4 bytes. This isn't strictly necessary, but it makes the test less obnoxiously slow on ptrace. Fixes #4407 PiperOrigin-RevId: 337971042
2020-10-19Merge release-20201005.0-102-g54e989ec3 (automated)gVisor bot
2020-10-19Remove legacy bazel configurations.Adin Scannell
Using the newer bazel rules necessitates a transition from proto1 to proto2. In order to resolve the incompatibility between proto2 and gogoproto, the cri runtimeoptions proto must be vendored. Further, some of the semantics of bazel caching changed during the transition. It is now necessary to: - Ensure that :gopath depends only on pure library targets, as the propagation of go_binary build attributes (pure, static) will affected the generated files (though content remains the same, there are conflicts with respect to the gopath). - Update bazel.mk to include the possibility of binaries in the bazel-out directory, as it will now put runsc and others there. This required some refinements to the mechanism of extracting paths, since some the existing regex resulted in false positives. - Change nogo rules to prevent escape generation on binary targets. For some reason, the newer version of bazel attempted to run the nogo analysis on the binary targets, which fails due to the fact that objdump does not work on the final binary. This must be due to a change in the semantics of aspects in bazel3. PiperOrigin-RevId: 337958324
2020-10-19Merge release-20201005.0-101-g4b4d12d5b (automated)gVisor bot
2020-10-19Fixes to cgroupsFabricio Voznika
There were a few problems with cgroups: - cleanup loop what breaking too early - parse of /proc/[pid]/cgroups was skipping "name=systemd" because "name=" was not being removed from name. - When no limits are specified, fillFromAncestor was not being called, causing a failure to set cpuset.mems Updates #4536 PiperOrigin-RevId: 337947356
2020-10-16Merge release-20201005.0-86-gfc40ead68 (automated)gVisor bot
2020-10-15`runsc do` fallback to internal network on failureFabricio Voznika
In case setting up network fails, log a warning and fallback to internal network. Closes #4498 PiperOrigin-RevId: 337442632
2020-10-13Merge release-20200928.0-102-g432963dd2 (automated)gVisor bot
2020-10-13[vfs2] Don't take reference in Task.MountNamespaceVFS2 and MountNamespace.Root.Dean Deng
This fixes reference leaks related to accidentally forgetting to DecRef() after calling one or the other. PiperOrigin-RevId: 336918922
2020-10-12Merge release-20200928.0-91-gd861cd5f1 (automated)gVisor bot
2020-10-12[vfs2] Don't leak disconnected mounts.Dean Deng
PiperOrigin-RevId: 336694658
2020-10-09Merge release-20200928.0-78-g743327817 (automated)gVisor bot
2020-10-08Merge release-20200928.0-66-ga55bd73d4 (automated)gVisor bot
2020-10-07Add staticcheck and staticstyle analyzers.Adin Scannell
This change also adds support to go_stateify for detecting an appropriate receiver name, avoiding a large number of false positives. PiperOrigin-RevId: 335994587
2020-10-06Ignore errors in rootless and test modesKonstantin Baranov
2020-10-06Merge release-20200928.0-57-gb761330ca (automated)gVisor bot
2020-10-06Merge pull request #4355 from majek:marek/swallow-SO_RCVBUFFORCE-errorgVisor bot
PiperOrigin-RevId: 335714100
2020-10-06Merge release-20200928.0-55-g1336af78d (automated)gVisor bot
2020-10-06Implement membarrier(2) commands other than *_SYNC_CORE.Jamie Liu
Updates #267 PiperOrigin-RevId: 335713923
2020-10-06Merge release-20200928.0-48-g9e64b9f3a (automated)gVisor bot
2020-10-05Fix gofer monitor prematurely destroying containerFabricio Voznika
When all container tasks finish, they release the mount which in turn will close the 9P session to the gofer. The gofer exits when the connection closes, triggering the gofer monitor. The gofer monitor will _think_ that the gofer died prematurely and destroy the container. Then when the caller attempts to wait for the container, e.g. to get the exit code, wait fails saying the container doesn't exist. Gofer monitor now just SIGKILLs the container, and let the normal teardown process to happen, which will evetually destroy the container at the right time. Also, fixed an issue with exec racing with container's init process exiting. Closes #1487 PiperOrigin-RevId: 335537350
2020-10-05Merge release-20200928.0-45-g1bc78d9fd (automated)gVisor bot
2020-10-05Merge pull request #3970 from benbuzbee:gomaxprocsgVisor bot
PiperOrigin-RevId: 335516972
2020-10-05Enable more VFS2 testsFabricio Voznika
Updates #1487 PiperOrigin-RevId: 335516732
2020-10-02Treat absent "linux" section is empty "cgroupsPath" tooKonstantin Baranov
2020-09-30Use consistent thread configuration for sandbox go runtimeBen Buzbee
With cgroups configured NumCPU is correct, however GOMAXPROCS is still derived from total host core count and ignores cgroup restrictions. This can lead to different and undesired behavior across different hosts. For example, the total number of threads in the guest process will be larger on machines with more cores. This change configures the go runtime for the sandbox to only use the number of threads consistent with its restrictions.
2020-09-28Merge release-20200921.0-56-ga5acc0616 (automated)gVisor bot
2020-09-28Support creating protocol instances with Stack refGhanan Gowripalan
Network or transport protocols may want to reach the stack. Support this by letting the stack create the protocol instances so it can pass a reference to itself at protocol creation time. Note, protocols do not yet use the stack in this CL but later CLs will make use of the stack from protocols. PiperOrigin-RevId: 334260210
2020-09-26Merge release-20200921.0-51-gebc81fadf (automated)gVisor bot
2020-09-25Add openat() to list of permitted syscalls in gotsan runs.Bhasker Hariharan
PiperOrigin-RevId: 333853498
2020-09-25Swallow SO_RCVBUFFORCE and SO_SNDBUFFORCE errors on SOCK_RAW socketsMarek Majkowski
In --network=sandbox mode, we create SOCK_RAW sockets on the given network device. The code tries to force-set 4MiB rcv and snd buffers on it, but in certain situations it might fail. There is no reason for refusing the sandbox startup in such case - we should bump the buffers to max availabe size and just move on.
2020-09-25fix seccomp test for ARM64Howard Zhang
As open syscall is not support on ARM64, change syscall from 'open' to 'openat' in no_match_name_allow Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2020-09-25fix TestUserLog for multi-archHoward Zhang
based on arch, apply different syscall number for sched_rr_get_interval Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2020-09-22Merge release-20200914.0-130-g13a9a622e (automated)gVisor bot
2020-09-22Allow CLONE_SETTLS for Go 1.16Michael Pratt
https://go.googlesource.com/go/+/0941fc3 switches the Go runtime (on amd64) from using arch_prctl(ARCH_SET_FS) to CLONE_SETTLS to set the TLS. PiperOrigin-RevId: 333100550
2020-09-22Merge release-20200914.0-129-gf134f873f (automated)gVisor bot
2020-09-22Force clone parent_tidptr and child_tidptr to zeroMichael Pratt
Neither CLONE_PARENT_SETTID nor CLONE_CHILD_SETTID are used, so these arguments will always be NULL. PiperOrigin-RevId: 333085326
2020-09-18Merge release-20200907.0-139-g313e1988c (automated)gVisor bot
2020-09-18Drop ARCH_GET_FSMichael Pratt
Go does not call arch_prctl(ARCH_GET_FS), nor am I sure it ever did. Drop the filter. PiperOrigin-RevId: 332470532
2020-09-17Merge release-20200907.0-125-gd796b100e (automated)gVisor bot
2020-09-17Merge release-20200907.0-123-gf0b1bd434 (automated)gVisor bot
2020-09-17Merge release-20200907.0-124-gda07e38f7 (automated)gVisor bot
2020-09-17Remove option to panic goferFabricio Voznika
Gofer panics are suppressed by p9 server and an error is returned to the caller, making it effectively the same as returning EROFS. PiperOrigin-RevId: 332282959
2020-09-17Merge release-20200907.0-121-ga11061d78 (automated)gVisor bot
2020-09-17Add VFS2 overlay support in runscFabricio Voznika
All tests under runsc are passing with overlay enabled. Updates #1487, #1199 PiperOrigin-RevId: 332181267
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