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2021-06-15Merge release-20210607.0-46-g3a8ba8ed9 (automated)gVisor bot
2021-06-14Support parsing Prf field in RAsGhanan Gowripalan
This change prepares for a later change which actually handles the Prf field in RAs to discover default routers with preference values, as per RFC 4191. Updates #6172. Test: header_test.TestNDPRouterAdvert PiperOrigin-RevId: 379421710
2021-06-14Merge release-20210607.0-43-gd4af8da36 (automated)gVisor bot
2021-06-14Rename DefaultRouter event to OffLinkRoute eventGhanan Gowripalan
This change prepares for a later change which supports the NDP Route Information option to discover more-specific routes, as per RFC 4191. Updates #6172. PiperOrigin-RevId: 379361330
2021-06-14Merge release-20210607.0-42-gb9db1c031 (automated)gVisor bot
2021-06-14Fix typoMichael Pratt
PiperOrigin-RevId: 379337677
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-20210607.0-40-gb720bcb6f (automated)gVisor bot
2021-06-14Always accept discovered configurations from NDPGhanan Gowripalan
Before this change, the NDPDispatcher was allowed to "cancel" the discovery of default routers/prefixes and auto-generate addresses. No use case exists for this today so we drop this for now. If a use case comes up in the future, we should instead invalidate the discovered configuration through the stack instead of during discovery. PiperOrigin-RevId: 379327009
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
2021-06-12Merge release-20210601.0-51-gb92e8ee8d (automated)gVisor bot
2021-06-11Fix //test/syscalls:exec_test_nativeZach Koopmans
Later kernels add empty arguments to argv, throwing off return values for the exec_basic_workload.cc binary. This is result of a bug introduced by ccbb18b67323b "exec/binfmt_script: Don't modify bprm->buf and then return - ENOEXEC". Before this change, an empty interpreter string was reported if the first non-space/non-tab character after "#!" was '\0' (end of file, previously- overwritten trailing space or tab, or previously-overwritten first newline). After this change, an empty interpreter string is reported if all characters after "#!" are spaces or tabs, or the first non-space non-tab character is at i_end, which is the position of the first newline after "#!". However, if there is no newline after "#!" (as in ExecTest.InterpreterScriptNoPath), then i_end = buf_end (= bprm->buf + sizeof(bprm->buf) - 1, the last possible byte in the buffer) and neither condition holds. Change white space for script inputs to take into account the above bug. Co-authored-by: Andrei Vagin <avagin@gmail.com> PiperOrigin-RevId: 378997171
2021-06-12Merge release-20210601.0-50-gec6a7ebc7 (automated)gVisor bot
2021-06-11Rework the workaround of the XCR0 issueAndrei Vagin
XCR0 has to be synchronized with the host. We can call xsave from the host context and then call xrstor from the guest context and vise versa. This means we need to support the same set of FPU features in both contexts. PiperOrigin-RevId: 378988281
2021-06-11Merge release-20210601.0-47-g0892420c9 (automated)gVisor bot
2021-06-10Minor VFS2 xattr changes.Jamie Liu
- Allow the gofer client to use most xattr namespaces. As documented by the updated comment, this is consistent with e.g. Linux's FUSE client, and allows gofers to provide extended attributes from FUSE filesystems. - Make tmpfs' listxattr omit xattrs in the "trusted" namespace for non-privileged users. PiperOrigin-RevId: 378778854
2021-06-11Merge release-20210601.0-45-g3fcbad509 (automated)gVisor bot
2021-06-10Fix lock ordering issue when enumerating cgroup tasks.Rahat Mahmood
The control files enumerating tasks and threads residing in cgroupfs incorrectly locks cgroupfs.filesystem.tasksMu before kernel.TaskSet.mu. The contents of these control files are inherently racy anyways, so use a snapshot of the tasks in the cgroup and drop tasksMu before resolving pids/tids (which acquires TaskSet.mu). PiperOrigin-RevId: 378767060
2021-06-10Merge release-20210601.0-43-gd81fcbf85 (automated)gVisor bot
2021-06-10Set RLimits during `runsc exec`Fabricio Voznika
PiperOrigin-RevId: 378726430
2021-06-10Merge release-20210601.0-42-g21169357c (automated)gVisor bot
2021-06-10Add /proc/sys/vm/max_map_countFabricio Voznika
Set it to int32 max because gVisor doesn't have a limit. Fixes #2337 PiperOrigin-RevId: 378722230
2021-06-10Merge release-20210601.0-41-g8d426b738 (automated)gVisor bot
2021-06-10Parse mmap protection and flags in straceFabricio Voznika
PiperOrigin-RevId: 378712518
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
2021-06-10Merge release-20210601.0-31-g0c37626a0 (automated)gVisor bot
2021-06-09Decommit huge-page-aligned regions during reclaim under manual zeroing.Jamie Liu
PiperOrigin-RevId: 378546551
2021-06-09Merge release-20210601.0-28-g2e574a990 (automated)gVisor bot
2021-06-09Merge pull request #6128 from kevinGC:fanout-pidgVisor bot
PiperOrigin-RevId: 378506076
2021-06-09Merge release-20210601.0-25-g25f3c7bd2 (automated)gVisor bot
2021-06-09Change TODO to NOTE.Nicolas Lacasse
It's in VFS1 code, so we probably will not do it. PiperOrigin-RevId: 378474174
2021-06-09Avoid fanout group collisions with best effortKevin Krakauer
Running multiple instances of netstack in the same network namespace can cause collisions when enabling packet fanout for fdbased endpoints. The only bulletproof fix is to run in different network namespaces, but by using `getpid()` instead of 0 as the fanout ID starting point we can avoid collisions in the common case, particularly when testing/experimenting. Addresses #6124
2021-06-08Merge release-20210601.0-20-g77930d0d5 (automated)gVisor bot
2021-06-07Exclusively lock IPv6 EP when modifying addressesGhanan Gowripalan
...as address add/removal updates multicast group memberships and NDP state. This partially reverts the change made to the IPv6 endpoint in https://github.com/google/gvisor/commit/ebebb3059f7c5dbe42af85715f1c51c. PiperOrigin-RevId: 378061726
2021-06-07Merge release-20210601.0-19-ge710aceb5 (automated)gVisor bot
2021-06-07Remove unsupported syscall event for setsockopt(*, SOL_SOCKET, SO_OOBINLINE).Nicolas Lacasse
Netstack behaves as if SO_OOBINLINE is always set, and was logging an unsupported syscall event if the app tries to disable it. We don't have a real use case for TCP urgent mechanisms (and RFC6093 says apps SHOULD NOT use it). This CL keeps the current behavior, but removes the unsupported syscall event. Fixes #6123 PiperOrigin-RevId: 378026059
2021-06-07Merge release-20210601.0-17-g7e4e71253 (automated)gVisor bot
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