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2018-12-17Implement mlock(), kind of.Jamie Liu
Currently mlock() and friends do nothing whatsoever. However, mlocking is directly application-visible in a number of ways; for example, madvise(MADV_DONTNEED) and msync(MS_INVALIDATE) both fail on mlocked regions. We handle this inconsistently: MADV_DONTNEED is too important to not work, but MS_INVALIDATE is rejected. Change MM to track mlocked regions in a manner consistent with Linux. It still will not actually pin pages into host physical memory, but: - mlock() will now cause sentry memory management to precommit mlocked pages. - MADV_DONTNEED and MS_INVALIDATE will interact with mlocked pages as described above. PiperOrigin-RevId: 225861605 Change-Id: Iee187204979ac9a4d15d0e037c152c0902c8d0ee
2018-12-17Use more descriptive service account key name.Nicolas Lacasse
PiperOrigin-RevId: 225854218 Change-Id: I7843e9e04c58a87d3a7e20d43e64c677ad9c961b
2018-12-16Allow sending of multicast and IPv6 link-local packets w/o route.Chris Kuiper
Same as with broadcast packets, sending of a multicast packet shouldn't require accessing the route table. The same applies to IPv6 link-local addresses, which aren't routable at all (they don't belong to any subnet by definition). PiperOrigin-RevId: 225775870 Change-Id: Ic53e6560c125a83be2be9c3d112e66b36e8dfe7b
2018-12-14Add blocking recv testsIan Gudger
PiperOrigin-RevId: 225646045 Change-Id: Ic712ebc627587ef4a9486f0b39fe8c96100f10ff
2018-12-14Use containerd at HEAD until better tagged version is available.Nicolas Lacasse
Go 1.11.3 has a bug: https://github.com/golang/go/issues/29241 This is fixed/workarounded in containerd: https://github.com/containerd/containerd/commit/52de3717005eb20141c305bd93ff0d6ee5dfecb6 Until that commit has made it into a tagged version, we will use containerd at head. PiperOrigin-RevId: 225636987 Change-Id: I7e32beb7751f566f5b41682a29a14442c1aa56c2
2018-12-14Adds Code of ConductAnne Bertucio
Adds a code of conduct to the gVisor project that follows the Google Open Source Office recommended CoC. Change-Id: Iec85e93991765177aa681c4179ed0e4f2eb7b4d5 PiperOrigin-RevId: 225633127
2018-12-14Move fdnotifier package to reduce internal confusion.Adin Scannell
PiperOrigin-RevId: 225632398 Change-Id: I909e7e2925aa369adc28e844c284d9a6108e85ce
2018-12-14Mark sync.Mutex in TTYFileOperations as nosaveAndrei Vagin
PiperOrigin-RevId: 225621767 Change-Id: Ie3a42cdf0b0de22a020ff43e307bf86409cff329
2018-12-14Implement SO_SNDTIMEOIan Gudger
PiperOrigin-RevId: 225620490 Change-Id: Ia726107b3f58093a5f881634f90b071b32d2c269
2018-12-14Give Kokoro access to RBE service.Nicolas Lacasse
PiperOrigin-RevId: 225599728 Change-Id: I70cd9f9d7375e56ae8d0a531ad4efb41418e7402
2018-12-14Shard the syscall tests.Nicolas Lacasse
PiperOrigin-RevId: 225574278 Change-Id: If5060a37e8a9b0120bec2b5de4037354f0eaba16
2018-12-13Bump rules_go to v0.16.4 and go toolchain to v1.11.3.Nicolas Lacasse
PiperOrigin-RevId: 225465835 Change-Id: Iee467e493e5df0a9e149b131f54b0af84d221051
2018-12-13Remove unused variable.Nicolas Lacasse
PiperOrigin-RevId: 225455503 Change-Id: I327fc6e7ba26532b628f343dece3bd9fc4d3b524
2018-12-13container.Destroy should clean up container metadata even if other cleanups failNicolas Lacasse
If the sandbox process is dead (because of a panic or some other problem), container.Destroy will never remove the container metadata file, since it will always fail when calling container.stop(). This CL changes container.Destroy() to always perform the three necessary cleanup operations: * Stop the sandbox and gofer processes. * Remove the container fs on the host. * Delete the container metadata directory. Errors from these three operations will be concatenated and returned from Destroy(). PiperOrigin-RevId: 225448164 Change-Id: I99c6311b2e4fe5f6e2ca991424edf1ebeae9df32
2018-12-13Clean up shm segments created by shm_test.Rahat Mahmood
This test suite was creating shm segments without ensuring they were cleaned up. Shm segments outlive the process creating them, so on a standard linux machine the test was leaving segments behind after each run. This would often cause failures as test cases would be affected by the cases that ran before them and left unexpected segments lying around. Also skip some assertions around memory usage when running on a Linux host, as we can't reason about external users of shm segments. PiperOrigin-RevId: 225435523 Change-Id: Ia299dacf59045002436f5e30dcc131f679bb7272
2018-12-13Fix WAITALL and RCVTIMEO interactionIan Gudger
PiperOrigin-RevId: 225424296 Change-Id: I60fcc2b859339dca9963cb32227a287e719ab765
2018-12-13transport/tcp: remove unused error return valuesIan Gudger
PiperOrigin-RevId: 225421480 Change-Id: I1e9259b0b7e8490164e830b73338a615129c7f0e
2018-12-12Flush socket test descriptionIan Gudger
This ensures that we know what type of socket caused a timeout. PiperOrigin-RevId: 225294255 Change-Id: I9033bd0f3791d3b5714aa08d111cf58a3014d252
2018-12-12Filesystems shouldn't be saving references to Platform.Rahat Mahmood
Platform objects are not savable, storing references to them in filesystem datastructures would cause save to fail if someone actually passed in a Platform. Current implementations work because everywhere a Platform is expected, we currently pass in a Kernel object which embeds Platform and thus satisfies the interface. Eliminate this indirection and save pointers to Kernel directly. PiperOrigin-RevId: 225288336 Change-Id: Ica399ff43f425e15bc150a0d7102196c3d54a2ab
2018-12-12Fix a data race on Shm.key.Rahat Mahmood
PiperOrigin-RevId: 225240907 Change-Id: Ie568ce3cd643f3e4a0eaa0444f4ed589dcf6031f
2018-12-12Pass information about map writableness to filesystems.Rahat Mahmood
This is necessary to implement file seals for memfds. PiperOrigin-RevId: 225239394 Change-Id: Ib3f1ab31385afc4b24e96cd81a05ef1bebbcbb70
2018-12-11Add rvalue ref-qualified PosixErrorOr<T>::ValueOrDie() overloads.Jamie Liu
This allows ValueOrDie() to be called on PosixErrorOr rvalues (e.g. temporaries) holding move-only types without extraneous std::move()s. PiperOrigin-RevId: 225098036 Change-Id: I662862e4f3562141f941845fc6e197edb27ce29b
2018-12-11Add "trace signal" optionMichael Pratt
This option is effectively equivalent to -panic-signal, except that the sandbox does not die after logging the traceback. PiperOrigin-RevId: 225089593 Change-Id: Ifb1c411210110b6104613f404334bd02175e484e
2018-12-11Format unshare flagsMichael Pratt
unshare actually takes a subset of clone flags, but has no unique flags, so formatting as clone flags is close enough. PiperOrigin-RevId: 225082774 Change-Id: I5b580f18607c7785f323e37809094115520a17c0
2018-12-11Fix README typosMichael Pratt
PiperOrigin-RevId: 225054712 Change-Id: I26e8bc3ef04fe96a4640e50ba4b635d4aa72cc50
2018-12-11Fix typo.Christopher Koch
PiperOrigin-RevId: 225046313 Change-Id: I95fe9c353a5bec13e6ad99094b7741a0e160e4d0
2018-12-11Remove unused envv variable from two funcs.Christopher Koch
PiperOrigin-RevId: 225041520 Change-Id: Ib1afc693e592d308d60db82022c5b7743fd3c646
2018-12-10Fix test tag argument typoMichael Pratt
The argument is --test_tag_filters, not --test_tag_filter. Also switch to ... instead of :*, as it doesn't require special shell quoting to avoid * expansion. PiperOrigin-RevId: 224949618 Change-Id: I45dd6acbaeae29f2cc0baa977b086b5c037c6a88
2018-12-10Minor wording update to Kubernetes support section of the READMEIan Lewis
Updated the README to correct some wording and clarify a bit that containerd CRI runtime is needed. PiperOrigin-RevId: 224944753 Change-Id: I7b9c527500f99571aca7ef73058472ae9b3d5371
2018-12-10Add safecopy support for arm64 platform.Haibo Xu
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I565214581eeb44045169da7f44d45a489082ac3a PiperOrigin-RevId: 224938170
2018-12-10Implement MSG_WAITALLIan Gudger
MSG_WAITALL requests that recv family calls do not perform short reads. It only has an effect for SOCK_STREAM sockets, other types ignore it. PiperOrigin-RevId: 224918540 Change-Id: Id97fbf972f1f7cbd4e08eec0138f8cbdf1c94fe7
2018-12-10Open source system call tests.Brian Geffon
PiperOrigin-RevId: 224886231 Change-Id: I0fccb4d994601739d8b16b1d4e6b31f40297fb22
2018-12-10Internal change.Nicolas Lacasse
PiperOrigin-RevId: 224865061 Change-Id: I6aa31f880931980ad2fc4c4b3cc4c532aacb31f4
2018-12-10Add type safety to shm ids and keys.Rahat Mahmood
PiperOrigin-RevId: 224864380 Change-Id: I49542279ad56bf15ba462d3de1ef2b157b31830a
2018-12-10Validate FS_BASE in Task.CloneMichael Pratt
arch_prctl already verified that the new FS_BASE was canonical, but Task.Clone did not. Centralize these checks in the arch packages. Failure to validate could cause an error in PTRACE_SET_REGS when we try to switch to the app. PiperOrigin-RevId: 224862398 Change-Id: Iefe63b3f9aa6c4810326b8936e501be3ec407f14
2018-12-09Stub out TCP_QUICKACKIan Gudger
PiperOrigin-RevId: 224696233 Change-Id: I45c425d9e32adee5dcce29ca7439a06567b26014
2018-12-08Update K8s supportFabricio Voznika
Add pointers to Minikube and gvisor-containerd-shim. PiperOrigin-RevId: 224654334 Change-Id: Icefefbe531e901fe4807ba81904de8b01baf8a15
2018-12-07sentry: turn "dynamically-created" procfs files into static creation.Zhaozhong Ni
PiperOrigin-RevId: 224600982 Change-Id: I547253528e24fb0bb318fc9d2632cb80504acb34
2018-12-07Format sigaction in straceMichael Pratt
Sample: I1206 14:24:56.768520 3700 x:0] [ 1] ioctl_test E rt_sigaction(SIGSEGV, 0x7ee6edb0c590 {Handler: 0x559c6d915cf0, Flags: SA_SIGINFO|SA_RESTORER|SA_ONSTACK|SA_NODEFER, Restorer: 0x2a9901a259a0, Mask: []}, 0x7ee6edb0c630) I1206 14:24:56.768530 3700 x:0] [ 1] ioctl_test X rt_sigaction(SIGSEGV, 0x7ee6edb0c590 {Handler: 0x559c6d915cf0, Flags: SA_SIGINFO|SA_RESTORER|SA_ONSTACK|SA_NODEFER, Restorer: 0x2a9901a259a0, Mask: []}, 0x7ee6edb0c630 {Handler: SIG_DFL, Flags: 0x0, Restorer: 0x0, Mask: []}) = 0x0 (2.701?s) PiperOrigin-RevId: 224596606 Change-Id: I3512493aed99d3d75600249263da46686b1dc0e7
2018-12-07Add period to commentMichael Pratt
PiperOrigin-RevId: 224553291 Change-Id: I35d0772c215b71f4319c23f22df5c61c908f8590
2018-12-07Bump glog version.Nicolas Lacasse
PiperOrigin-RevId: 224551278 Change-Id: I76c537075ae291647d9e3e597ca1bd2477c9ce8d
2018-12-06Format signals, signal masks in straceMichael Pratt
Sample: I1205 16:51:49.869701 2492 x:0] [ 1] ioctl_test E rt_sigaction(SIGIO, 0x7e0e5b5e8500, 0x7e0e5b5e85a0) I1205 16:51:49.869766 2492 x:0] [ 1] ioctl_test X rt_sigaction(SIGIO, 0x7e0e5b5e8500, 0x7e0e5b5e85a0) = 0x0 (44.336?s) I1205 16:51:49.869831 2492 x:0] [ 1] ioctl_test E rt_sigprocmask(SIG_UNBLOCK, 0x7e0e5b5e8878 [SIGIO], 0x7e0e5b5e87c0, 0x8) I1205 16:51:49.869866 2492 x:0] [ 1] ioctl_test X rt_sigprocmask(SIG_UNBLOCK, 0x7e0e5b5e8878 [SIGIO], 0x7e0e5b5e87c0 [SIGIO 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64], 0x8) = 0x0 (2.575?s) PiperOrigin-RevId: 224422404 Change-Id: I3ed3f2ec6b1a639baa9cacd37ce7ee325c3703e4
2018-12-06A sandbox process should wait until it has not been moved into cgroupsAndrei Vagin
PiperOrigin-RevId: 224418900 Change-Id: I53cf4d7c1c70117875b6920f8fd3d58a3b1497e9
2018-12-06Allow sending of broadcast packets w/o route.Chris Kuiper
Currently sending a broadcast packet (for DHCP, e.g.) requires a "default route" of the format "0.0.0.0/0 via 0.0.0.0 <intf>". There is no good reason for this and on devices with several ports this creates a rather akward route table with lots of such default routes (which defeats the purpose of a default route). PiperOrigin-RevId: 224378769 Change-Id: Icd7ec8a206eb08083cff9a837f6f9ab231c73a19
2018-12-06Convert ValueSet to a mapMichael Pratt
Unlike FlagSet, order doesn't matter here, so it can simply be a map. PiperOrigin-RevId: 224377910 Change-Id: I15810c698a7f02d8614bf09b59583ab73cba0514
2018-12-06Fix tcpip.Endpoint.Write contract regarding short writesIan Gudger
* Clarify tcpip.Endpoint.Write contract regarding short writes. * Enforce tcpip.Endpoint.Write contract regarding short writes. * Update relevant users of tcpip.Endpoint.Write. PiperOrigin-RevId: 224377586 Change-Id: I24299ecce902eb11317ee13dae3b8d8a7c5b097d
2018-12-06Add counters for memory events.Rahat Mahmood
Also ensure an event is emitted at startup. PiperOrigin-RevId: 224372065 Change-Id: I5f642b6d6b13c6468ee8f794effe285fcbbf29cf
2018-12-06Fixing O_TRUNC behavior to match Linux.Zach Koopmans
PiperOrigin-RevId: 224351139 Change-Id: I9453bd75e5a8d38db406bb47fdc01038ac60922e
2018-12-05sentry: support save / restore of TCP bind socket after shutdown.Zhaozhong Ni
PiperOrigin-RevId: 224227677 Change-Id: I08b0e0c0574170556269900653e5bcf9e9e5c9c9
2018-12-05Enforce directory accessibility before delete WalkMichael Pratt
By Walking before checking that the directory is writable and executable, MayDelete may return the Walk error (e.g., ENOENT) which would normally be masked by a permission error (EACCES). PiperOrigin-RevId: 224222453 Change-Id: I108a7f730e6bdaa7f277eaddb776267c00805475
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