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2021-07-01Merge release-20210628.0-16-g590b8d3e9 (automated)gVisor bot
2021-07-01[syserror] Update several syserror errors to linuxerr equivalents.Zach Koopmans
Update/remove most syserror errors to linuxerr equivalents. For list of removed errors, see //pkg/syserror/syserror.go. PiperOrigin-RevId: 382574582
2021-06-30Merge release-20210628.0-14-g6ef268409 (automated)gVisor bot
2021-06-30[syserror] Update syserror to linuxerr for EACCES, EBADF, and EPERM.Zach Koopmans
Update all instances of the above errors to the faster linuxerr implementation. With the temporary linuxerr.Equals(), no logical changes are made. PiperOrigin-RevId: 382306655
2021-06-29Merge release-20210628.0-8-g54b71221c (automated)gVisor bot
2021-06-29[syserror] Change syserror to linuxerr for E2BIG, EADDRINUSE, and EINVALZach Koopmans
Remove three syserror entries duplicated in linuxerr. Because of the linuxerr.Equals method, this is a mere change of return values from syserror to linuxerr definitions. Done with only these three errnos as CLs removing all grow to a significantly large size. PiperOrigin-RevId: 382173835
2021-06-24Merge release-20210614.0-24-g2e6195ffe (automated)gVisor bot
2021-06-24CreateProcessGroup has to check whether a target process stil exists or notAndrei Vagin
A caller of CreateProcessGroup looks up a thread group without locks, so the target process can exit before CreateProcessGroup will be called. Reported-by: syzbot+6abb7c34663dacbd55a8@syzkaller.appspotmail.com PiperOrigin-RevId: 381351069
2021-06-23Merge release-20210614.0-18-g6b23d2a08 (automated)gVisor bot
2021-06-23Fix PR_SET_PTRACER applicability to non-leader threads.Jamie Liu
Compare if (!thread_group_leader(tracee)) tracee = rcu_dereference(tracee->group_leader); in security/yama/yama_lsm.c:ptracer_exception_found(). PiperOrigin-RevId: 381074242
2021-06-22Merge release-20210614.0-14-ge1dc1c78e (automated)gVisor bot
2021-06-22[syserror] Add conversions to linuxerr with temporary Equals method.Zach Koopmans
Add Equals method to compare syserror and unix.Errno errors to linuxerr errors. This will facilitate removal of syserror definitions in a followup, and finding needed conversions from unix.Errno to linuxerr. PiperOrigin-RevId: 380909667
2021-06-17Merge release-20210607.0-54-g3cf1644a3 (automated)gVisor bot
2021-06-17Move tcpip.Clock impl to TimekeeperTamir Duberstein
...and pass it explicitly. This reverts commit b63e61828d0652ad1769db342c17a3529d2d24ed. PiperOrigin-RevId: 380039167
2021-06-16Merge release-20210607.0-51-g63b4f6e29 (automated)gVisor bot
2021-06-16[syserror] Refactor linuxerr and error package.Zach Koopmans
Move Error struct to pkg/errors package for use in multiple places. Move linuxerr static definitions under pkg/errors/linuxerr. Add a lookup list for quick lookup of *errors.Error by errno. This is useful when converting syserror errors and unix.Errno/syscall.Errrno values to *errors.Error. Update benchmarks routines to include conversions. The below benchmarks show *errors.Error usage to be comparable to using unix.Errno. BenchmarkAssignUnix BenchmarkAssignUnix-32 787875022 1.284 ns/op BenchmarkAssignLinuxerr BenchmarkAssignLinuxerr-32 1000000000 1.209 ns/op BenchmarkAssignSyserror BenchmarkAssignSyserror-32 759269229 1.429 ns/op BenchmarkCompareUnix BenchmarkCompareUnix-32 1000000000 1.310 ns/op BenchmarkCompareLinuxerr BenchmarkCompareLinuxerr-32 1000000000 1.241 ns/op BenchmarkCompareSyserror BenchmarkCompareSyserror-32 147196165 8.248 ns/op BenchmarkSwitchUnix BenchmarkSwitchUnix-32 373233556 3.664 ns/op BenchmarkSwitchLinuxerr BenchmarkSwitchLinuxerr-32 476323929 3.294 ns/op BenchmarkSwitchSyserror BenchmarkSwitchSyserror-32 39293408 29.62 ns/op BenchmarkReturnUnix BenchmarkReturnUnix-32 1000000000 0.5042 ns/op BenchmarkReturnLinuxerr BenchmarkReturnLinuxerr-32 1000000000 0.8152 ns/op BenchmarkConvertUnixLinuxerr BenchmarkConvertUnixLinuxerr-32 739948875 1.547 ns/op BenchmarkConvertUnixLinuxerrZero BenchmarkConvertUnixLinuxerrZero-32 977733974 1.489 ns/op PiperOrigin-RevId: 379806801
2021-06-14Merge release-20210607.0-41-g9c7ff24fe (automated)gVisor bot
2021-06-14Cleanup iptables bug TODOsKevin Krakauer
There are many references to unimplemented iptables features that link to #170, but that bug is about Istio support specifically. Istio is supported, so the references should change. Some TODOs are addressed, some removed because they are not features requested by users, and some are left as implementation notes. Fixes #170. PiperOrigin-RevId: 379328488
2021-06-14Merge release-20210601.0-52-g5c9e84622 (automated)gVisor bot
2021-06-13Remove usermem dependency from marshalIan Lewis
Both marshal and usermem are depended on by many packages and a dependency on marshal can often create circular dependencies. marshal should consider adding internal dependencies carefully moving forward. Fixes #6160 PiperOrigin-RevId: 379199882
2021-06-10Merge release-20210601.0-40-g450692e03 (automated)gVisor bot
2021-06-10Report task exit in /proc/[pid]/{stat,status} before task goroutine exit.Jamie Liu
Between when runExitNotify.execute() returns nil (indicating that the task goroutine should exit) and when Task.run() advances Task.gosched.State to TaskGoroutineNonexistent (indicating that the task goroutine is exiting), there is a race window in which the Task is waitable (since TaskSet.mu is unlocked and Task.exitParentNotified is true) but will be reported by /proc/[pid]/status as running. Close the window by checking Task.exitState before task goroutine exit. PiperOrigin-RevId: 378711484
2021-06-10Merge release-20210601.0-39-g9ede1a605 (automated)gVisor bot
2021-06-10[op] Move SignalInfo to abi/linux package.Ayush Ranjan
Fixes #214 PiperOrigin-RevId: 378680466
2021-06-10Merge release-20210601.0-37-gc867c5526 (automated)gVisor bot
2021-06-10Merge pull request #6103 from sudo-sturbia:semaphore-errgVisor bot
PiperOrigin-RevId: 378607458
2021-06-10Merge release-20210601.0-34-ga51fcf22e (automated)gVisor bot
2021-06-10[op] Move SignalStack to abi/linux package.Ayush Ranjan
Updates #214 PiperOrigin-RevId: 378594929
2021-06-10Merge release-20210601.0-33-g8d87a9418 (automated)gVisor bot
2021-06-09[op] Move SignalAct to abi/linux package.Ayush Ranjan
There were also other duplicate definitions of the same struct that I have now removed. Updates #214 PiperOrigin-RevId: 378579954
2021-06-10Merge release-20210601.0-32-g8a7b5a4a8 (automated)gVisor bot
2021-06-09Change TODO bug to a more specific issueKevin Krakauer
This lets us close a tracking bug that's too widely-scoped to be reasonably finished. PiperOrigin-RevId: 378563203
2021-06-07Merge release-20210601.0-17-g7e4e71253 (automated)gVisor bot
2021-06-07cgroupfs: don't add a task in the root cgroup if it is already there.Andrei Vagin
PiperOrigin-RevId: 377975013
2021-06-03Merge release-20210518.0-70-gb3c608ef8 (automated)gVisor bot
2021-06-03Implement stringer for ExitStatusTamir Duberstein
PiperOrigin-RevId: 377370807
2021-06-01Move sync generics to their own packagesTamir Duberstein
The presence of multiple packages in a single directory sometimes confuses `go mod`, producing output like: go: downloading gvisor.dev/gvisor v0.0.0-20210601174640-77dc0f5bc94d $GOMODCACHE/gvisor.dev/gvisor@v0.0.0-20210601174640-77dc0f5bc94d/pkg/linewriter/linewriter.go:21:2: found packages sync (aliases.go) and seqatomic (generic_atomicptr_unsafe.go) in $GOMODCACHE/gvisor.dev/gvisor@v0.0.0-20210601174640-77dc0f5bc94d/pkg/sync imports.go:67:2: found packages tcp (accept.go) and rcv (rcv_test.go) in $GOMODCACHE/gvisor.dev/gvisor@v0.0.0-20210601174640-77dc0f5bc94d/pkg/tcpip/transport/tcp PiperOrigin-RevId: 376956213
2021-06-01Merge release-20210518.0-63-g4f3746998 (automated)gVisor bot
2021-05-31Update comments on ambient caps to point to bugIan Lewis
PiperOrigin-RevId: 376747671
2021-05-31Use syserror.ENOSPC for system-wide semaphore limits.Zyad A. Ali
semget(2) man page specifies that ENOSPC should be used if "the system limit for the maximum number of semaphore sets (SEMMNI), or the system wide maximum number of semaphores (SEMMNS), would be exceeded."
2021-05-27Merge release-20210518.0-58-g17df2df75 (automated)gVisor bot
2021-05-27nanosleep has to store the finish time in the restart blockAndrei Vagin
nanosleep has to count time that a thread spent in the stopped state. PiperOrigin-RevId: 376258641
2021-05-26Merge release-20210518.0-44-gb63e61828 (automated)gVisor bot
2021-05-25Initialize Kernel.Timekeeper before network NSTamir Duberstein
PiperOrigin-RevId: 375843579
2021-05-26Merge release-20210518.0-43-ga54cb9d8a (automated)gVisor bot
2021-05-25Use specific fmt verbs (avoid %v)Tamir Duberstein
Remove useless conversions. Avoid unhandled errors. PiperOrigin-RevId: 375834275
2021-05-25Merge release-20210518.0-41-gf298d7321 (automated)gVisor bot
2021-05-25Merge pull request #6064 from sudo-sturbia:misspellinggVisor bot
PiperOrigin-RevId: 375789776
2021-05-25Merge release-20210518.0-38-g4f2439fb0 (automated)gVisor bot
2021-05-25Use opaque types to represent timeTamir Duberstein
Introduce tcpip.MonotonicTime; replace int64 in tcpip.Clock method returns with time.Time and MonotonicTime to improve type safety and ensure that monotonic clock readings are never compared to wall clock readings. PiperOrigin-RevId: 375775907
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