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2020-05-28Split VFS.MountAt into VFS.MountDisconnected and VFS.ConnectMountAt.Jamie Liu
This makes it straightforward to create bind mounts internally in VFS2: Given a bind mount root represented by vfs.VirtualDentry vd: - Create a new mount with VFS.NewDisconnectedMount(vd.Mount().Filesystem(), vd.Dentry()). - Connect the resulting mount in the appropriate namespace with VFS.ConnectMountAt(). Note that the resulting bind mount is non-recursive; recursive bind mounting requires explicitly duplicating all children of the original mount, which is best handled internally by VFS. Updates #179 PiperOrigin-RevId: 313703963
2020-05-28Move Cleanup to its own packageFabricio Voznika
PiperOrigin-RevId: 313663382
2020-05-28Add pcap logging to pcaketimpact.Ian Gudger
This makes debugging packetimpact tests much easier. PiperOrigin-RevId: 313662654
2020-05-28Merge pull request #2771 from amscanne:fix_buildgVisor bot
PiperOrigin-RevId: 313652557
2020-05-28Automated rollback of changelist 309082540Fabricio Voznika
PiperOrigin-RevId: 313636920
2020-05-28Merge pull request #2792 from avagin:g3doc/fuse/refsgVisor bot
PiperOrigin-RevId: 313600051
2020-05-27Correctly update link and ref counts in rmdir.Dean Deng
Inotify sends events when a watch target is reaches a link count of 0 (see include/linux/fsnotify.h:fsnotify_inoderemove). Currently, we do not account for both dir/ and dir/.. in unlink, causing syscalls/linux/inotify.cc:WatchTargetDeletionGeneratesEvent to fail because the expected inotify events are not generated. Furthermore, we should DecRef() once the inode reaches zero links; otherwise, we will leak a reference. PiperOrigin-RevId: 313502091
2020-05-27Remove linkEP from DeliverNetworkPacketSam Balana
The specified LinkEndpoint is not being used in a significant way. No behavior change, existing tests pass. This change is a breaking change. PiperOrigin-RevId: 313496602
2020-05-27Ensure sitemap is generated.Adin Scannell
PiperOrigin-RevId: 313478820
2020-05-27Fix push for Go branch.Adin Scannell
PiperOrigin-RevId: 313419745
2020-05-27Fix tiny typo.Kevin Krakauer
PiperOrigin-RevId: 313414690
2020-05-27g3doc/fuse: add more referencesAndrei Vagin
2020-05-27Merge pull request #2748 from amscanne:go_branchgVisor bot
PiperOrigin-RevId: 313404235
2020-05-26Support dfltuid and dfltgid mount options in the VFS2 gofer client.Jamie Liu
PiperOrigin-RevId: 313332542
2020-05-26Implement splice(2) and tee(2) for VFS2.Jamie Liu
Updates #138 PiperOrigin-RevId: 313326354
2020-05-26Merge pull request #2751 from mrahatm:fusegVisor bot
PiperOrigin-RevId: 313300882
2020-05-26Merge pull request #2764 from jabedude:gov-fixgVisor bot
PiperOrigin-RevId: 313300731
2020-05-26Automated rollback of changelist 311424257gVisor bot
PiperOrigin-RevId: 313300554
2020-05-26Write initial design doc for FUSE.Rahat Mahmood
2020-05-26Merge pull request #2770 from mikaelmello:patch-1gVisor bot
PiperOrigin-RevId: 313283624
2020-05-26Merge pull request #2766 from geethanjalieswaran:makefile-changegVisor bot
PiperOrigin-RevId: 313283145
2020-05-25Ensure docker group exists in the container.Adin Scannell
The --groups command will fail if the group is not defined in /etc/groups, even though it is specified by GID. By coincidence, the group happens to be there for many installations of Ubuntu 18.04 (which uses 999 for the Docker group), but it is strangely absent in others (which use 130). Fixes #2765
2020-05-25Fix typo in Wordpress tutorial pageMikael Mello
2020-05-23README: fix link to GOVERNANCE documentJoshua Abraham
2020-05-23Fix typo in 'make tests' recipeGeethanjali Eswaran
test_tag_filter => test_tag_filters Ref: https://docs.bazel.build/versions/master/command-line-reference.html#flag--test_tag_filters
2020-05-21Skip socket tests only if running on vfs1.Dean Deng
PiperOrigin-RevId: 312763249
2020-05-21Fix IsRunningWithVFS1() on the runsc-based test runner.Jamie Liu
Updates #1035 PiperOrigin-RevId: 312736450
2020-05-21Fix TestTmpFileFabricio Voznika
Split check for file in /tmp from working directory test. Fix readonly case which should not fail to create working dir. PiperOrigin-RevId: 312702930
2020-05-21Add IsRunningWithVFS1 to test utilFabricio Voznika
VFS2 is adding more functionality than VFS1. In order to test new functionality, it's required to skip some tests with VFS1. To skip tests, use: SKIP_IF(IsRunningWithVFS1()); The test will run in Linux and gVisor with VFS2 enabled. Updates #1035 PiperOrigin-RevId: 312698616
2020-05-21Merge pull request #2719 from geethanjalieswaran:doc-changesgVisor bot
PiperOrigin-RevId: 312687935
2020-05-20Normalize permissions in the go branch.Adin Scannell
Fixes #2722
2020-05-20Implement gap tracking in the segment set.Reapor-Yurnero
This change was derived from a change by: Reapor-Yurnero <reapor.yurnero@gmail.com> And has been modified by: Adin Scannell <ascannell@google.com> (The original change author is preserved for the commit.) This change implements gap tracking in the segment set by adding additional information in each node, and using that information to speed up gap finding from a linear scan to a O(log(n)) walk of the tree. This gap tracking is optional, and will default to off except for segment instances that set gapTracking equal to 1 in their const lists. PiperOrigin-RevId: 312621607
2020-05-20Avoid all caps FIONREAD as test name.Jay Zhuang
PiperOrigin-RevId: 312596169
2020-05-20Remove implicit dependencies for leaf packages.Rahat Mahmood
These packages don't actually use go_stateify or go_marshal, but end up implicitly dependent on the respective packages due to our build rules. These unnecessary dependencies make them unusuable in certain contexts due to circular dependency. PiperOrigin-RevId: 312595738
2020-05-20Test that we have PAWS mechanismZeling Feng
If there is a Timestamps option in the arriving segment and SEG.TSval < TS.Recent and if TS.Recent is valid, then treat the arriving segment as not acceptable: Send an acknowledgement in reply as specified in RFC-793 page 69 and drop the segment. https://tools.ietf.org/html/rfc1323#page-19 PiperOrigin-RevId: 312590678
2020-05-20Update the Docker quickstart to use 'runsc install'Ian Lewis
PiperOrigin-RevId: 312573487
2020-05-20Internal change.gVisor bot
PiperOrigin-RevId: 312559963
2020-05-20Move fsimpl/host file offset from inode to fileDescription.Dean Deng
PiperOrigin-RevId: 312559861
2020-05-20Add hugetlb and rdma cgroups to runscFabricio Voznika
Updates #2713 PiperOrigin-RevId: 312559463
2020-05-20Automated rollback of changelist 312522097Nicolas Lacasse
PiperOrigin-RevId: 312529859
2020-05-20Merge pull request #2688 from lubinszARM:pr_goidgVisor bot
PiperOrigin-RevId: 312524376
2020-05-20Upgrade to Bazel 3.1.0.Nicolas Lacasse
This upgrades the Kokoro images, bazel toolchains used by RBE runners, and rules_go, gazelle, and go toolchain versions. PiperOrigin-RevId: 312522097
2020-05-20Unbreak permalink.Adin Scannell
The permalink should be "linux" not "Linux. PiperOrigin-RevId: 312518858
2020-05-19Implement mmap for host fs in vfs2.Dean Deng
In VFS1, both fs/host and fs/gofer used the same utils for host file mappings. Refactor parts of fsimpl/gofer to create similar utils to share with fsimpl/host (memory accounting code moved to fsutil, page rounding arithmetic moved to usermem). Updates #1476. PiperOrigin-RevId: 312345090
2020-05-19Skip itimer "fairness" tests on ptrace.Jamie Liu
With additional logging, the issue described by the new comment looks like: D0518 21:28:08.416810 6777 task_signals.go:459] [ 8] Notified of signal 27 D0518 21:28:08.416852 6777 task_block.go:223] [ 8] Interrupt queued D0518 21:28:08.417013 6777 task_run.go:250] [ 8] Switching to sentry D0518 21:28:08.417033 6777 task_signals.go:220] [ 8] Signal 27: delivering to handler D0518 21:28:08.417127 6777 task_run.go:248] [ 8] Switching to app D0518 21:28:08.443765 6777 task_signals.go:519] [ 8] Refusing masked signal 27 // ED: note the ~26ms elapsed since TID 8 "switched to app" D0518 21:28:08.443814 6777 task_signals.go:465] [ 6] Notified of group signal 27 D0518 21:28:08.443832 6777 task_block.go:223] [ 6] Interrupt queued D0518 21:28:08.443914 6777 task_block.go:223] [ 6] Interrupt queued D0518 21:28:08.443859 6777 task_run.go:250] [ 8] Switching to sentry I0518 21:28:08.443936 6777 strace.go:576] [ 8] exe E rt_sigreturn() Slow context switches on ptrace are probably due to kernel scheduling delays. Slow context switches on KVM are less clear, so leave that bug and TODO open. PiperOrigin-RevId: 312322782
2020-05-19Fix flaky udp tests by polling before reading.Dean Deng
On native Linux, calling recv/read right after send/write sometimes returns EWOULDBLOCK, if the data has not made it to the receiving socket (even though the endpoints are on the same host). Poll before reading to avoid this. Making this change also uncovered a hostinet bug (gvisor.dev/issue/2726), which is noted in this CL. PiperOrigin-RevId: 312320587
2020-05-19Merge pull request #2687 from lubinszARM:pr_tls_1gVisor bot
PiperOrigin-RevId: 312299234
2020-05-19Typo fix in READMEGeethanjali Eswaran
'make test TARGETS=""' TARGET => TARGETS
2020-05-18Add simplified badge and Build workflow.Adin Scannell
PiperOrigin-RevId: 312159017
2020-05-18Implement Go branch updater with GitHub actions.Adin Scannell
PiperOrigin-RevId: 312155686