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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
2019-09-04Fix continuous build breakageAdin Scannell
PiperOrigin-RevId: 267277711
2019-09-04Fix RST generation bugs.Bhasker Hariharan
There are a few cases addressed by this change - We no longer generate a RST in response to a RST packet. - When we receive a RST we cleanup and release all reservations immediately as the connection is now aborted. - An ACK received by a listening socket generates a RST when SYN cookies are not in-use. The only reason an ACK should land at the listening socket is if we are using SYN cookies otherwise the goroutine for the handshake in progress should have gotten the packet and it should never have arrived at the listening endpoint. - Also fixes the error returned when a connection times out due to a Keepalive timer expiration from ECONNRESET to a ETIMEDOUT. PiperOrigin-RevId: 267238427
2019-09-04Handle subnet and broadcast addresses correctly with NIC.subnetsChris Kuiper
This also renames "subnet" to "addressRange" to avoid any more confusion with an interface IP's subnet. Lastly, this also removes the Stack.ContainsSubnet(..) API since it isn't used by anyone. Plus the same information can be obtained from Stack.NICAddressRanges(). PiperOrigin-RevId: 267229843
2019-09-03Impose order on test scripts.Adin Scannell
The simple test script has gotten out of control. Shard this script into different pieces and attempt to impose order on overall test structure. This change helps lay some of the foundations for future improvements. * The runsc/test directories are moved into just test/. * The runsc/test/testutil package is split into logical pieces. * The scripts/ directory contains new top-level targets. * Each test is now responsible for building targets it requires. * The install functionality is moved into `runsc` itself for simplicity. * The existing kokoro run_tests.sh file now just calls all (can be split). After this change is merged, I will create multiple distinct workflows for Kokoro, one for each of the scripts currently targeted by `run_tests.sh` today, which should dramatically reduce the time-to-run for the Kokoro tests, and provides a better foundation for further improvements to the infrastructure. PiperOrigin-RevId: 267081397
2019-09-03Validate IPv6 Hop Limit field for received NDP packetsGhanan Gowripalan
Make sure that NDP packets are only received if their IP header's hop limit field is set to 255, as per RFC 4861. PiperOrigin-RevId: 267061457
2019-09-03Make UDP traceroute work.Bhasker Hariharan
Adds support to generate Port Unreachable messages for UDP datagrams received on a port for which there is no valid endpoint. Fixes #703 PiperOrigin-RevId: 267034418
2019-09-03Ensure that flipcall.Endpoint.Shutdown() shuts down inactive peers.Jamie Liu
PiperOrigin-RevId: 267022978
2019-09-03Merge pull request #782 from xiaobo55x:pkg_rawfilegVisor bot
PiperOrigin-RevId: 266976315
2019-09-02Remove duplicated file in pkg/tcpip/link/rawfile.Haibo Xu
The blockingpoll_unsafe.go was copied to blockingpoll_noyield_unsafe.go during merging commit 7206202bb9439499. If it still stay here, it would cause build errors on non-amd64 platform. ERROR: pkg/tcpip/link/rawfile/BUILD:5:1: GoCompilePkg pkg/tcpip/link/rawfile.a failed (Exit 1) builder failed: error executing command bazel-out/host/bin/external/go_sdk/builder compilepkg -sdk external/go_sdk -installsuffix linux_arm64 -src pkg/tcpip/link/rawfile/blockingpoll_noyield_unsafe.go -src ... (remaining 33 argument(s) skipped) Use --sandbox_debug to see verbose messages from the sandbox compilepkg: error running subcommand: exit status 2 pkg/tcpip/link/rawfile/blockingpoll_yield_unsafe.go:35:6: BlockingPoll redeclared in this block previous declaration at pkg/tcpip/link/rawfile/blockingpoll_unsafe.go:26:78 Target //pkg/tcpip/link/rawfile:rawfile failed to build Use --verbose_failures to see the command lines of failed build steps. INFO: Elapsed time: 25.531s, Critical Path: 21.08s INFO: 262 processes: 262 linux-sandbox. FAILED: Build did NOT complete successfully Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I4e21f82984225d0aa173de456f7a7c66053a053e
2019-08-30Remove support for non-incremental mapped accounting.Jamie Liu
PiperOrigin-RevId: 266496644
2019-08-30Automated rollback of changelist 261387276Bhasker Hariharan
PiperOrigin-RevId: 266491264
2019-08-30Fix async-signal-unsafety in MlockallTest_Future.Jamie Liu
PiperOrigin-RevId: 266491246
2019-08-30Fix data race accessing referencedNetworkEndpoint.kindChris Kuiper
Wrapping "kind" into atomic access functions. Fixes #789 PiperOrigin-RevId: 266485501
2019-08-30Return correct buffer size for ioctl(socket, FIONREAD)Fabricio Voznika
Ioctl was returning just the buffer size from epsocket.endpoint and it was not considering data from epsocket.SocketOperations that was read from the endpoint, but not yet sent to the caller. PiperOrigin-RevId: 266485461