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2019-09-19Merge pull request #876 from xiaobo55x:hostcpugVisor bot
PiperOrigin-RevId: 270094324
2019-09-19Job control: controlling TTYs and foreground process groups.Kevin Krakauer
Adresses a deadlock with the rolled back change: https://github.com/google/gvisor/commit/b6a5b950d28e0b474fdad160b88bc15314cf9259 Creating a session from an orphaned process group was causing a lock to be acquired twice by a single goroutine. This behavior is addressed, and a test (OrphanRegression) has been added to pty.cc. Implemented the following ioctls: - TIOCSCTTY - set controlling TTY - TIOCNOTTY - remove controlling tty, maybe signal some other processes - TIOCGPGRP - get foreground process group. Also enables tcgetpgrp(). - TIOCSPGRP - set foreground process group. Also enabled tcsetpgrp(). Next steps are to actually turn terminal-generated control characters (e.g. C^c) into signals to the proper process groups, and to send SIGTTOU and SIGTTIN when appropriate. PiperOrigin-RevId: 270088599
2019-09-18Shard the runtime tests.Nicolas Lacasse
Default of 20 shards was arbitrary and will need fine-tuning in later CLs. PiperOrigin-RevId: 269922871
2019-09-18Fix dev.sh --refresh to create target dirFabricio Voznika
PiperOrigin-RevId: 269921234
2019-09-18Enable pkg/sentry/hostcpu support on arm64.Haibo Xu
Signed-off-by: Haibo Xu haibo.xu@arm.com Change-Id: I333872da9bdf56ddfa8ab2f034dfc1f36a7d3132
2019-09-18Signalfd supportAdin Scannell
Note that the exact semantics for these signalfds are slightly different from Linux. These signalfds are bound to the process at creation time. Reads, polls, etc. are all associated with signals directed at that task. In Linux, all signalfd operations are associated with current, regardless of where the signalfd originated. In practice, this should not be an issue given how signalfds are used. In order to fix this however, we will need to plumb the context through all the event APIs. This gets complicated really quickly, because the waiter APIs are all netstack-specific, and not generally exposed to the context. Probably not worthwhile fixing immediately. PiperOrigin-RevId: 269901749
2019-09-18Move the component into the repository structure.Adin Scannell
The RELEASE file must be at the top-level for the signed repository to work correctly. PiperOrigin-RevId: 269897109
2019-09-17scripts/build.sh: fix kokoro failure "KOKORO_BUILD_NIGHTLY: unbound variable"Andrei Vagin
PiperOrigin-RevId: 269690988
2019-09-17Automated rollback of changelist 268047073Ghanan Gowripalan
PiperOrigin-RevId: 269658971
2019-09-17Follow-up fixes for image tests.Nicolas Lacasse
- Fix ARG syntax in Dockerfiles. - Fix curl commands in Dockerfiles. - Fix some paths in proctor binaries. - Check error from Walk in search helper. PiperOrigin-RevId: 269641686
2019-09-17platform/ptrace: log exit code for stub processesAndrei Vagin
PiperOrigin-RevId: 269631877
2019-09-17Update remaining users of LinkEndpoints to not refer to them as an ID.Ian Gudger
PiperOrigin-RevId: 269614517
2019-09-16Fix artifact pattern for repositories.Adin Scannell
PiperOrigin-RevId: 269468986
2019-09-16Refactor and clean up image tests.Nicolas Lacasse
* Use multi-stage builds in Dockerfiles. * Combine all proctor binaries into a single binary. * Change the TestRunner interface to reduce code duplication. PiperOrigin-RevId: 269462101
2019-09-16Migrate from gflags to absl flagsMichael Pratt
absl flags are more modern and we can easily depend on them directly. The repo now successfully builds with --incompatible_load_cc_rules_from_bzl. PiperOrigin-RevId: 269387081
2019-09-16Bring back to life features lost in recent refactorFabricio Voznika
- Sandbox logs are generated when running tests - Kokoro uploads the sandbox logs - Supports multiple parallel runs - Revive script to install locally built runsc with docker PiperOrigin-RevId: 269337274
2019-09-13gvisor: return ENOTDIR from the unlink syscallAndrei Vagin
ENOTDIR has to be returned when a component used as a directory in pathname is not, in fact, a directory. PiperOrigin-RevId: 269037893
2019-09-13Remove stale configurations.Adin Scannell
PiperOrigin-RevId: 268947847
2019-09-12Update p9 to support flipcall.Adin Scannell
PiperOrigin-RevId: 268845090
2019-09-12Implement splice methods for pipes and sockets.Adin Scannell
This also allows the tee(2) implementation to be enabled, since dup can now be properly supported via WriteTo. Note that this change necessitated some minor restructoring with the fs.FileOperations splice methods. If the *fs.File is passed through directly, then only public API methods are accessible, which will deadlock immediately since the locking is already done by fs.Splice. Instead, we pass through an abstract io.Reader or io.Writer, which elide locks and use the underlying fs.FileOperations directly. PiperOrigin-RevId: 268805207
2019-09-12Remove go_test from go_stateify and go_marshalMichael Pratt
They are no-ops, so the standard rule works fine. PiperOrigin-RevId: 268776264
2019-09-12Merge pull request #843 from nlacasse:versiongVisor bot
PiperOrigin-RevId: 268772451
2019-09-12Automated rollback of changelist 268047073Ghanan Gowripalan
PiperOrigin-RevId: 268757842
2019-09-12Update repository directory structure.Adin Scannell
Currently it will not work with apt out of the box, as we require the dists/ prefix, along with a distribution name. This tweaks the overall structure to allow for the same URL prefix to be used for all repositories, and enables multiple architectures. Fixes #852 PiperOrigin-RevId: 268756104
2019-09-12Bump bazel toolchain.Nicolas Lacasse
This fixes the RBE warning: DEBUG: rbe_default not using checked in configs; Bazel version 0.29.1 was picked/selected but no checked in config was found in map[...] PiperOrigin-RevId: 268747944
2019-09-11Drop unavailable package.Adin Scannell
PiperOrigin-RevId: 268614014
2019-09-11Ensure appropriate tools are installed on image.Adin Scannell
PiperOrigin-RevId: 268608466
2019-09-11Update key environment variables.Adin Scannell
PiperOrigin-RevId: 268604220
2019-09-11Fix authorization for continuous integration.Adin Scannell
The credentials must be explicitly refreshed for pushing to the repository on the Go branch. PiperOrigin-RevId: 268589817
2019-09-11Bump bazel, rules_go, gazelle, and go toolchain to latest versions.Nicolas Lacasse
PiperOrigin-RevId: 268486127
2019-09-11Update required Bazel version in README.Ian Lewis
PiperOrigin-RevId: 268397389
2019-09-10Fix `runsc --version` and add a test.Nicolas Lacasse
We need to include the `--stamp` flag in `tools/workspace_status.sh` for the version to be picked up by the linker. Not sure why. Also changes the VERSION string to STABLE_VERSION, which will cause the program to be re-linked if the string changes. Fixes #830
2019-09-10Fix minor Kokoro issues.Adin Scannell
A recent Kokoro change pointed to go_tests.cfg (in line with the other configurations), which unfortunately broke the presubmits. This change also enabled the KVM tests, which were still using a remote execution strategy. This fixes both of these issues and allows presubmits to pass. One additional test was caught with this case, which seems to have been broken. It's unclear why this was not being caught. PiperOrigin-RevId: 268166291
2019-09-09Fix ephemeral port leak.Ian Gudger
Fix a bug where udp.(*endpoint).Disconnect [accessible in gVisor via epsocket.(*SocketOperations).Connect with AF_UNSPEC] would leak a port reservation if the socket/endpoint had an ephemeral port assigned to it. glibc's getaddrinfo uses connect with AF_UNSPEC, causing each call of getaddrinfo to leak a port. Call getaddrinfo too many times and you run out of ports (shows up as connect returning EAGAIN and getaddrinfo returning EAI_NONAME "Name or service not known"). PiperOrigin-RevId: 268071160
2019-09-09go_marshal: Implement automatic generation of ABI marshalling code.Rahat Mahmood
This CL implements go_marshal, a code generation utility for automatically serializing and deserializing ABI structs. The go_marshal tool automatically generates implementations of the new marshal interface. Unlike binary.Marshal/Unmarshal, the generated interface implementations use no runtime reflection, and translates to a single memcpy for most structs. See go_marshal/README.md for details. PiperOrigin-RevId: 268065475
2019-09-09Merge pull request #824 from amscanne:fix_build2gVisor bot
PiperOrigin-RevId: 268062329
2019-09-09Join IPv6 all-nodes and solicited-node multicast addresses where appropriate.Ghanan Gowripalan
The IPv6 all-nodes multicast address will be joined on NIC enable, and the appropriate IPv6 solicited-node multicast address will be joined when IPv6 addresses are added. Tests: Test receiving packets destined to the IPv6 link-local all-nodes multicast address and the IPv6 solicted node address of an added IPv6 address. PiperOrigin-RevId: 268047073
2019-09-06Remove reundant global tcpip.LinkEndpointID.Ian Gudger
PiperOrigin-RevId: 267709597
2019-09-06Indicate flipcall synchronization to the Go race detector.Jamie Liu
Since each Endpoint has a distinct mapping of the packet window, the Go race detector does not recognize accesses by connected Endpoints to be related. This means that this change isn't necessary for the Go race detector to accept accesses of flipcall.Endpoint.Data(), but it *is* necessary for it to accept accesses to shared variables outside the scope of flipcall that are synchronized by flipcall.Endpoint state; see updated test for an example. RaceReleaseMerge is needed (instead of RaceRelease) because calls to raceBecomeInactive() from *unrelated* Endpoints can occur in any order. (DowngradableRWMutex.RUnlock() has a similar property: calls to RUnlock() on the same DowngradableRWMutex from different goroutines can occur in any order. Remove the TODO asking to explain this now that this is understood.) PiperOrigin-RevId: 267705325
2019-09-06Fix repository build scriptsAdin Scannell
This has the following fixes: * Packages are passed to the tools/make_repository.sh command. * All matching tags are built, for commits with multiple. * The binary path is generated by the build command. * Output from signing the repository is supressed. * Allow a release author. Change-Id: I2d08954ba76e35612f352be99d5bb99080f80892
2019-09-06Load C++ rules from @rules_ccMichael Pratt
See https://github.com/bazelbuild/bazel/issues/8743. This will be required in Bazel 1.0. Protobuf was updated in https://github.com/protocolbuffers/protobuf/commit/bf0c69e1302fe9568fbe310cc54b37d20a9d16a3#diff-96239ee297e0a92ac6ff96a6bc434ef0. GoogleTest was updated in https://github.com/google/googletest/commit/6fd262ecf787d0dc2a91696fd4bf1d3ee1ebfa14. gflags has not yet been updated, so the repo still won't build with --incompatible_load_cc_rules_from_bzl. Tested with buildifier -warnings=native-cc -lint=warn **/BUILD. PiperOrigin-RevId: 267638515
2019-09-05Ignore the root container when calculating oom_score_adj for the sandbox.Ian Lewis
This is done because the root container for CRI is the infrastructure (pause) container and always gets a low oom_score_adj. We do this to ensure that only the oom_score_adj of user containers is used to calculated the sandbox oom_score_adj. Implemented in runsc rather than the containerd shim as it's a bit cleaner to implement here (in the shim it would require overwriting the oomScoreAdj and re-writing out the config.json again). This processing is Kubernetes(CRI) specific but we are currently only supporting CRI for multi-container support anyway. PiperOrigin-RevId: 267507706
2019-09-05Better strace logs for statx.Nicolas Lacasse
PiperOrigin-RevId: 267498537
2019-09-05Merge pull request #809 from google:amscanne-patch-1gVisor bot
PiperOrigin-RevId: 267484802
2019-09-05Fix bug in proc_test.Bhasker Hariharan
TestNoDuplicates is racy as it tries to read the /proc file system while the test is running. But it's possible that from the time a directory entries are read and each entry processed something could change and in some cases the entry being processed could have been deleted. In such cases we should not fail the test but just ignore the error and move on. PiperOrigin-RevId: 267483094
2019-09-05Deflake aio_test.Jamie Liu
- Most AIO tests call io_setup(nr_events = 128). sizeof(struct io_event) (128*32 = 4096). However, the actual size of the mapping created by io_setup() is determined by: (from fs/aio.c:ioctx_alloc()) /* * We keep track of the number of available ringbuffer slots, to prevent * overflow (reqs_available), and we also use percpu counters for this. * * So since up to half the slots might be on other cpu's percpu counters * and unavailable, double nr_events so userspace sees what they * expected: additionally, we move req_batch slots to/from percpu * counters at a time, so make sure that isn't 0: */ nr_events = max(nr_events, num_possible_cpus() * 4); nr_events *= 2; (from fs/aio.c:aio_setup_ring()) /* Compensate for the ring buffer's head/tail overlap entry */ nr_events += 2; /* 1 is required, 2 for good luck */ size = sizeof(struct aio_ring); size += sizeof(struct io_event) * nr_events; nr_pages = PFN_UP(size); When we mremap() only the first page of a multi-page AIO ring buffer mapping, fs/aio.c:aio_ring_mremap() updates struct kioctx::mmap_base - but struct kioctx::mmap_size is untouched, so sys_io_destroy() => kill_ioctx() vm_unmaps() the mremapped page, plus some number of pages after it. Just get the actual size of the mapping from /proc/self/maps. - Delete test case MremapOver; while it is correct that Linux will not complain if you overwrite the AIO ring buffer with another mapping, it won't actually work in the sense that AIO events will not be written to the new mapping, because Linux stores the struct pages of the ring buffer in struct kioctx::ring_pages and writes to those through kmap() rather than using userspace addresses. - Don't munmap() after mremap(MREMAP_FIXED) returns EFAULT; see new comment in factored-out test case MremapExpansion. PiperOrigin-RevId: 267482903
2019-09-04Allow non-unique group IDs in bazel docker containersIan Lewis
Allow non-unique group IDs in the bazel docker container in order to avoid failures using host group IDs that are already present in the image. Issue #801 PiperOrigin-RevId: 267306089
2019-09-04Fix build when no tags are presentAdin Scannell
This should correct the continuous build.
2019-09-04Run proc_net tests.Ian Gudger
PiperOrigin-RevId: 267280086
2019-09-04Resolve flakes with TestMultiContainerDestroyFabricio Voznika
Some processes are reparented to the root container depending on the kill order and the root container would not reap in time. So some zombie processes were still present when the test checked. Fix it by running the second container inside a PID namespace. PiperOrigin-RevId: 267278591
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