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2020-05-29Merge release-20200522.0-33-gccf69bdd (automated)gVisor bot
2020-05-29Implement IN_EXCL_UNLINK inotify option in vfs2.Dean Deng
Limited to tmpfs. Inotify support in other filesystem implementations to follow. Updates #1479 PiperOrigin-RevId: 313828648
2020-05-29Merge release-20200522.0-27-gfe464f44 (automated)gVisor bot
2020-05-29Port inotify to vfs2, with support in tmpfs.Dean Deng
Support in other filesystem impls is still needed. Unlike in Linux and vfs1, we need to plumb inotify down to each filesystem implementation in order to keep track of links/inode structures properly. IN_EXCL_UNLINK still needs to be implemented, as well as a few inotify hooks that are not present in either vfs1 or vfs2. Those will be addressed in subsequent changes. Updates #1479. PiperOrigin-RevId: 313781995
2020-05-27Merge release-20200518.0-45-g0bc022b7 (automated)gVisor bot
2020-05-26Implement splice(2) and tee(2) for VFS2.Jamie Liu
Updates #138 PiperOrigin-RevId: 313326354
2020-05-16Merge release-20200511.0-251-g420b791 (automated)gVisor bot
2020-05-15Minor formatting updates for gvisor.dev.Adin Scannell
* Aggregate architecture Overview in "What is gVisor?" as it makes more sense in one place. * Drop "user-space kernel" and use "application kernel". The term "user-space kernel" is confusing when some platform implementation do not run in user-space (instead running in guest ring zero). * Clear up the relationship between the Platform page in the user guide and the Platform page in the architecture guide, and ensure they are cross-linked. * Restore the call-to-action quick start link in the main page, and drop the GitHub link (which also appears in the top-right). * Improve image formatting by centering all doc and blog images, and move the image captions to the alt text. PiperOrigin-RevId: 311845158
2020-05-14Merge release-20200422.0-303-g47dfba7 (automated)gVisor bot
2020-05-14Port memfd_create to vfs2 and finish implementation of file seals.Nicolas Lacasse
Closes #2612. PiperOrigin-RevId: 311548074
2020-05-11Merge release-20200422.0-62-gc52195d (automated)gVisor bot
2020-05-07Merge release-20200422.0-52-g9115f26 (automated)gVisor bot
2020-05-07Allocate device numbers for VFS2 filesystems.Jamie Liu
Updates #1197, #1198, #1672 PiperOrigin-RevId: 310432006
2020-05-07Merge release-20200422.0-51-g1f4087e (automated)gVisor bot
2020-05-07Merge release-20200422.0-49-gd0b1d02 (automated)gVisor bot
2020-05-07Move pkg/sentry/vfs/{eventfd,timerfd} to new packages in pkg/sentry/fsimpl.Nicolas Lacasse
They don't depend on anything in VFS2, so they should be their own packages. PiperOrigin-RevId: 310416807
2020-05-06Merge release-20200422.0-37-g279f1eb (automated)gVisor bot
2020-05-06Fix runsc syscall documentation generation.Adin Scannell
We can register any number of tables with any number of architectures, and need not limit the definitions to the architecture in question. This allows runsc to generate documentation for all architectures simultaneously. Similarly, this simplifies the VFSv2 patching process. PiperOrigin-RevId: 310224827
2020-05-04Merge release-20200422.0-15-g2c98687 (automated)gVisor bot
2020-05-04Fix flaky monotonic time.Adin Scannell
This change ensures that even platforms with some TSC issues (e.g. KVM), can get reliable monotonic time by applied a lower bound on each read. PiperOrigin-RevId: 309773801
2020-04-27Merge release-20200323.0-252-g292f3f9 (automated)gVisor bot
2020-04-27Don't leak vfs.MountNamespace reference if kernel.TaskSet.NewTask fails.Jamie Liu
PiperOrigin-RevId: 308617610
2020-04-26Merge release-20200323.0-251-g3c67754 (automated)gVisor bot
2020-04-25Enable automated marshalling for signals and the arch package.Rahat Mahmood
PiperOrigin-RevId: 308472331
2020-04-24Merge release-20200323.0-234-g1b88c63 (automated)gVisor bot
2020-04-24Move hostfs mount to Kernel struct.Dean Deng
This is needed to set up host fds passed through a Unix socket. Note that the host package depends on kernel, so we cannot set up the hostfs mount directly in Kernel.Init as we do for sockfs and pipefs. Also, adjust sockfs to make its setup look more like hostfs's and pipefs's. PiperOrigin-RevId: 308274053
2020-04-24Merge release-20200323.0-229-gf01f213 (automated)gVisor bot
2020-04-23Enable automated marshalling for mempolicy syscalls.Rahat Mahmood
PiperOrigin-RevId: 308170679
2020-04-23Merge release-20200323.0-226-g93dd471 (automated)gVisor bot
2020-04-23Enable automated marshalling for epoll events.Rahat Mahmood
Ensure we use the correct architecture-specific defintion of epoll event, and use go-marshal for serialization. PiperOrigin-RevId: 308145677
2020-04-23Merge release-20200323.0-222-gded5c96 (automated)gVisor bot
2020-04-23Merge pull request #1819 from lubinszARM:pr_signal_2gVisor bot
PiperOrigin-RevId: 308100771
2020-04-23Merge release-20200323.0-215-g0c58694 (automated)gVisor bot
2020-04-22Specify a memory file in platform.New().Andrei Vagin
PiperOrigin-RevId: 307941984
2020-04-17Merge release-20200323.0-177-g12bde95 (automated)gVisor bot
2020-04-17Get /bin/true to run on VFS2Zach Koopmans
Included: - loader_test.go RunTest and TestStartSignal VFS2 - container_test.go TestAppExitStatus on VFS2 - experimental flag added to runsc to turn on VFS2 Note: shared mounts are not yet supported. PiperOrigin-RevId: 307070753
2020-04-17Merge release-20200323.0-173-gf03996c (automated)gVisor bot
2020-04-16Implement pipe(2) and pipe2(2) for VFS2.Jamie Liu
Updates #1035 PiperOrigin-RevId: 306968644
2020-04-16Merge release-20200323.0-164-g2839981 (automated)gVisor bot
2020-04-16Make ExtractErrno a functionFabricio Voznika
PiperOrigin-RevId: 306891171
2020-04-13Merge release-20200323.0-144-g7e5d67e (automated)gVisor bot
2020-04-13Merge pull request #2168 from xiaobo55x:ptrace_testgVisor bot
PiperOrigin-RevId: 306306809
2020-04-13Merge release-20200323.0-136-g5d885d7 (automated)gVisor bot
2020-04-13Port socket-related syscalls to VFS2.Dean Deng
Note that most kinds of sockets are not yet supported in VFS2 (only Unix sockets are partially supported at the moment), so these syscalls will still generally fail. Enabling them allows us to begin running socket tests for VFS2 as more features are ported over. Updates #1476, #1478, #1484, #1485. PiperOrigin-RevId: 306292294
2020-04-13Merge release-20200323.0-134-g6a4d17a (automated)gVisor bot
2020-04-13Remove obsolete TODOs for b/38173783Jon Budd
The comments in the ticket indicate that this behavior is fine and that the ticket should be closed, so we shouldn't need pointers to the ticket. PiperOrigin-RevId: 306266071
2020-04-11Merge release-20200323.0-130-gdaf3322 (automated)gVisor bot
2020-04-10Add logging message for noNewPrivileges OCI option.Ian Lewis
noNewPrivileges is ignored if set to false since gVisor assumes that PR_SET_NO_NEW_PRIVS is always enabled. PiperOrigin-RevId: 305991947
2020-04-10Merge release-20200323.0-122-g1798d6c (automated)gVisor bot
2020-04-10Remove TODO from kernel.StracerFabricio Voznika
The dependency strace=>kernel grew over time. strace also depends on task's FD table and FSContext. It could be fixed with some interfaces the other way, but then we're trading an interface for another, and kernel.Stracer is likely cleaner. Closes #155 PiperOrigin-RevId: 305909678