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2019-01-16Prevent internal tmpfs mount to override files in /tmpFabricio Voznika
Runsc wants to mount /tmp using internal tmpfs implementation for performance. However, it risks hiding files that may exist under /tmp in case it's present in the container. Now, it only mounts over /tmp iff: - /tmp was not explicitly asked to be mounted - /tmp is empty If any of this is not true, then /tmp maps to the container's image /tmp. Note: checkpoint doesn't have sentry FS mounted to check if /tmp is empty. It simply looks for explicit mounts right now. PiperOrigin-RevId: 229607856 Change-Id: I10b6dae7ac157ef578efc4dfceb089f3b94cde06
2019-01-15Set end of subslice as begin of next subsliceYong He
syscall test split testcase via shard count, reset high bound as begin of next subslice, cause the slice is half-open range. Change-Id: I1954f57c93cbfd9be518153315da305a2de377a0 PiperOrigin-RevId: 229405199
2019-01-14Remove fs.Handle, ramfs.Entry, and all the DeprecatedFileOperations.Nicolas Lacasse
More helper structs have been added to the fsutil package to make it easier to implement fs.InodeOperations and fs.FileOperations. PiperOrigin-RevId: 229305982 Change-Id: Ib6f8d3862f4216745116857913dbfa351530223b
2019-01-14Fix a few compilation warningsAndrei Vagin
test/syscalls/linux/wait.cc:626:8: warning: lambda capture 'this' is not used 302 [this, stack] { ASSERT_THAT(FreeStack(stack), SyscallSucceeds()); }); 303 ^~~~~ test/syscalls/linux/priority.cc:195:17: warning: lambda capture 'kParentPriority' is not required to be captured for this use 273 ScopedThread([kParentPriority, kChildPriority]() { 274 ^~~~~~~~~~~~~~~~ PiperOrigin-RevId: 229275900 Change-Id: I6f0c88efc7891c6c729378a2fa70f70b1b9046a7
2019-01-14Deflake RecvLessThanBufferWaitAll.Ian Gudger
PiperOrigin-RevId: 229238781 Change-Id: Ib5a1e46293583efcb09e255fcd400c3fcc53ef1b
2019-01-14Automated rollback of changelist 228945914Nicolas Lacasse
PiperOrigin-RevId: 229214698 Change-Id: Ib4ea2e330e61ee34bf913938d6120a52ecc38ce1
2019-01-11Clean up some uses of fork() in tests.Jamie Liu
- Fix a few cases where async-signal-unsafe code is executed in a forked process pre-execve. - Ensure that the return value of fork() is always checked. PiperOrigin-RevId: 228949310 Change-Id: I3096cb7d7394b8d9ab81b0e0245f2060713ef589
2019-01-11Require CAP_SYS_CHROOT in ChrootTest.ProcMountsMountinfoNoEscape.Jamie Liu
PiperOrigin-RevId: 228949227 Change-Id: I8f47bcd56aab706081218ec7498af8049ccd6d63
2019-01-11Make syscall_test_runner binary testonly.Nicolas Lacasse
PiperOrigin-RevId: 228945914 Change-Id: Idfa0a3c27434655b5f9ac241f1726e0bc9ef0392
2019-01-10Define name earlierMichael Pratt
PiperOrigin-RevId: 228805981 Change-Id: I4f4c4a5d8de325dff38f6dfb92108fc848d823fd
2019-01-10Fixing select call to not enforce RLIMIT_NOFILE.Zach Koopmans
Removing check to RLIMIT_NOFILE in select call. Adding unit test to select suite to document behavior. Moving setrlimit class from mlock to a util file for reuse. Fixing flaky test based on comments from Jamie. PiperOrigin-RevId: 228726131 Change-Id: Ie9dbe970bbf835ba2cca6e17eec7c2ee6fadf459
2019-01-09Avoid $(location) in syscall tests.Nicolas Lacasse
Instead just find the syscall_test_runner binary in the shell script. PiperOrigin-RevId: 228621230 Change-Id: I274ee0874e47d53f59474b1ac730ee45e3dff977
2019-01-09Make CooperativeSaveEnabled() async-signal-safe(r).Jamie Liu
The static local variable `enabled` in CooperativeSaveEnabled() is not initialized until the first call to CooperativeSaveEnabled(), per the C++14 standard, section 6.7 ("Declaration statement"), paragraph 4. This initialization is thread-safe as of C++11, but it is *not* required to be async-signal-safe. Use a namespace-scope variable instead, since this is guaranteed to be zero-initialized before main() by section 3.6.2 ("Initialization of non-local variables"). getenv() is technically not async-signal-safe either, hence the hedging in the change summary line. However, glibc's implementation of getenv() appears to be async-signal-safe in the absence of calls to setenv(). PiperOrigin-RevId: 228588617 Change-Id: I669f555d1c91352d55c606970bb237ec888fa7ca
2019-01-09Allow to specify a custom path to runsc for syscall-test-runnerAndrei Vagin
PiperOrigin-RevId: 228574092 Change-Id: Id93abcca1ce964eb595907df9355702d469bc33b
2019-01-08Enable proc/self/fd test on linux and disable only on gvisor.Brian Geffon
PiperOrigin-RevId: 228403149 Change-Id: Iab212e49d9eb27d785bddc9fd447835ce8c485ae
2019-01-07Implement /proc/[pid]/smaps.Jamie Liu
PiperOrigin-RevId: 228245523 Change-Id: I5a4d0a6570b93958e51437e917e5331d83e23a7e
2019-01-07Default syscall_test shard_count to 5.Jamie Liu
PiperOrigin-RevId: 228243120 Change-Id: I2726d580f4f9fad0ecc6a912e0e576ed9e08ce72
2019-01-03Add test for reopening socketpair end via procfs.Brian Geffon
PiperOrigin-RevId: 227738801 Change-Id: Ic0c5d10c3b1f21b3f85ff9a661a55db77fab77b0
2018-12-28Implement SO_REUSEPORT for TCP and UDP socketsAndrei Vagin
This option allows multiple sockets to be bound to the same port. Incoming packets are distributed to sockets using a hash based on source and destination addresses. This means that all packets from one sender will be received by the same server socket. PiperOrigin-RevId: 227153413 Change-Id: I59b6edda9c2209d5b8968671e9129adb675920cf
2018-12-27Fix deadlock between epoll_wait and getdentsFabricio Voznika
epoll_wait acquires EventPoll.listsMu (in EventPoll.ReadEvents) and then calls Inotify.Readiness which tries to acquire Inotify.evMu. getdents acquires Inotify.evMu (in Inotify.queueEvent) and then calls readyCallback.Callback which tries to acquire EventPoll.listsMu. The fix is to release Inotify.evMu before calling Queue.Notify. Queue is thread-safe and doesn't require Inotify.evMu to be held. Closes #121 PiperOrigin-RevId: 227066695 Change-Id: Id29364bb940d1727f33a5dff9a3c52f390c15761
2018-12-26Plumb IP_MULTICAST_TTL to netstack.Ian Gudger
PiperOrigin-RevId: 226993086 Change-Id: I71757f231436538081d494da32ca69f709bc71c7
2018-12-21Stub out SO_OOBINLINE.Ian Gudger
We don't explicitly support out-of-band data and treat it like normal in-band data. This is equilivent to SO_OOBINLINE being enabled, so always report that it is enabled. PiperOrigin-RevId: 226572742 Change-Id: I4c30ccb83265e76c30dea631cbf86822e6ee1c1b
2018-12-21Kokoro: Build all packages as part of presubmit.Nicolas Lacasse
We now build all packages (including //test/...) with RBE as part of the Kokoro presubmit. The tests do not yet use RBE, because there are some failures. The Golang unit, integration, and image tests still run locally. The syscall test suite needs even more work to make it pass on RBE. Those will be enabled in follow-up CLs. They currently are not enabled at all on Kokoro. PiperOrigin-RevId: 226562208 Change-Id: Idd2b81b3e8f07bf300c77e68990493ba97d16e23
2018-12-21Remove gunit_no_heapcheck from depsAndrei Vagin
heapcheck works fine now. PiperOrigin-RevId: 226552252 Change-Id: Ifcf17a377b3d6512a576f54462dd81c1d4c7b17c
2018-12-21Implement SO_KEEPALIVE, TCP_KEEPIDLE, and TCP_KEEPINTVL.Ian Gudger
Within gVisor, plumb new socket options to netstack. Within netstack, fix GetSockOpt and SetSockOpt return value logic. PiperOrigin-RevId: 226532229 Change-Id: If40734e119eed633335f40b4c26facbebc791c74
2018-12-21Fix test util testsMichael Pratt
We actually need to include test main! PiperOrigin-RevId: 226524447 Change-Id: I9d9e631611183c7c1fbae1c20a222c9aeef269b2
2018-12-21inotify notifies watchers when control events bit are setFabricio Voznika
The code that matches the event being published with events watchers was wronly matching all watchers in case any of the control event bits were set. Issue #121 PiperOrigin-RevId: 226521230 Change-Id: Ie2c42bc4366faaf59fbf80a74e9297499bd93f9e
2018-12-21Automated rollback of changelist 226224230Jamie Liu
PiperOrigin-RevId: 226493053 Change-Id: Ia98d1cb6dd0682049e4d907ef69619831de5c34a
2018-12-20Make read and write respect SO_RCVTIMEO and SO_SNDTIMEOIan Gudger
PiperOrigin-RevId: 226387521 Change-Id: I0579ab262320fde6c72d2994dd38437f01a99ea5
2018-12-20test: deflake socket_inet_loopback.Zhaozhong Ni
PiperOrigin-RevId: 226350590 Change-Id: Idff080705f644f8f78ce92b53c77eecc37e002e7
2018-12-19Automated rollback of changelist 225861605Googler
PiperOrigin-RevId: 226224230 Change-Id: Id24c7d3733722fd41d5fe74ef64e0ce8c68f0b12
2018-12-19Implement pwritev2.Zach Koopmans
Implement pwritev2 and associated unit tests. Clean up preadv2 unit tests. Tag RWF_ flags in both preadv2 and pwritev2 with associated bug tickets. PiperOrigin-RevId: 226222119 Change-Id: Ieb22672418812894ba114bbc88e67f1dd50de620
2018-12-18Allow PosixErrorOr<T> to be implicitly constructible from copyable T.Jamie Liu
PiperOrigin-RevId: 226037787 Change-Id: I5fb5f55f68b67dd86bbff46349b46e3e8e6b9d1b
2018-12-18Deflake socket testsGoogler
PiperOrigin-RevId: 226029237 Change-Id: I6fcdb241d635468beb6d6c173f2e7f96d715bf26
2018-12-18Add BPFAction type with StringerFabricio Voznika
PiperOrigin-RevId: 226018694 Change-Id: I98965e26fe565f37e98e5df5f997363ab273c91b
2018-12-18Correctly handle filenames containing spaces in ParseProcMapsLine.Jamie Liu
PiperOrigin-RevId: 225992500 Change-Id: Icc8b1675f1cb625fc5e8ef7389beb42fa7bfaa13
2018-12-17Fix recv blocking for connectionless Unix sockets.Ian Gudger
Connectionless Unix sockets (DGRAM Unix sockets created with the socket system call) inherently only have a read queue. They do not establish bidirectional connections, instead, the connect system call only sets a default send location. Writes give the data to the other endpoint which has its own read queue. To simplify the code, connectionless Unix sockets still get read and write queues, but the write queue is a dummy and never waited on. The read queue is the connectionless endpoint's queue. This change fixes a bug where the dummy queue was incorrectly set as the read queue and the endpoint's queue was incorrectly set as the write queue. This meant that read notifications went to the dummy queue and were black holed. PiperOrigin-RevId: 225921042 Change-Id: I8d9059def787a2c3c305185b92d05093fbd2be2a
2018-12-17Enable recently-fixed test case for shm_test.Rahat Mahmood
PiperOrigin-RevId: 225887356 Change-Id: Iee000dcfc9e0168c2566edf41c66108be9b68cd6
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
2018-12-14Add blocking recv testsIan Gudger
PiperOrigin-RevId: 225646045 Change-Id: Ic712ebc627587ef4a9486f0b39fe8c96100f10ff
2018-12-14Implement SO_SNDTIMEOIan Gudger
PiperOrigin-RevId: 225620490 Change-Id: Ia726107b3f58093a5f881634f90b071b32d2c269
2018-12-14Shard the syscall tests.Nicolas Lacasse
PiperOrigin-RevId: 225574278 Change-Id: If5060a37e8a9b0120bec2b5de4037354f0eaba16
2018-12-13Remove unused variable.Nicolas Lacasse
PiperOrigin-RevId: 225455503 Change-Id: I327fc6e7ba26532b628f343dece3bd9fc4d3b524
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
2018-12-12Flush socket test descriptionIan Gudger
This ensures that we know what type of socket caused a timeout. PiperOrigin-RevId: 225294255 Change-Id: I9033bd0f3791d3b5714aa08d111cf58a3014d252
2018-12-11Add 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
2018-12-11Fix README typosMichael Pratt
PiperOrigin-RevId: 225054712 Change-Id: I26e8bc3ef04fe96a4640e50ba4b635d4aa72cc50
2018-12-11Fix typo.Christopher Koch
PiperOrigin-RevId: 225046313 Change-Id: I95fe9c353a5bec13e6ad99094b7741a0e160e4d0
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
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