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2020-12-02Merge release-20201117.0-90-gb26dd6d9b (automated)gVisor bot
2020-12-02Add /proc/sys/kernel/sem.Jing Chen
PiperOrigin-RevId: 345178956
2020-11-13Merge release-20201030.0-79-g62db1fad2 (automated)gVisor bot
2020-11-12Fix misuses of kernel.Task as context.Context.Jamie Liu
kernel.Task can only be used as context.Context by that Task's task goroutine. This is violated in at least two places: - In any case where one thread accesses the /proc/[tid] of any other thread, passing the kernel.Task for [tid] as the context.Context is incorrect. - Task.rebuildTraceContext() may be called by Kernel.RebuildTraceContexts() outside the scope of any task goroutine. Fix these (as well as a data race on Task.traceContext discovered during the course of finding the latter). PiperOrigin-RevId: 342174404
2020-11-03Merge release-20201027.0-63-g1cfa8d58f (automated)gVisor bot
2020-11-03Fix more nogo testsTing-Yu Wang
PiperOrigin-RevId: 340536306
2020-10-28Merge release-20201019.0-73-g1c2836da3 (automated)gVisor bot
2020-10-27Implement /proc/[pid]/memLennart
This PR implements /proc/[pid]/mem for `pkg/sentry/fs` (refer to #2716) and `pkg/sentry/fsimpl`. @majek COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/4060 from lnsp:proc-pid-mem 2caf9021254646f441be618a9bb5528610e44d43 PiperOrigin-RevId: 339369629
2020-10-09Merge release-20200928.0-78-g743327817 (automated)gVisor bot
2020-10-08Merge release-20200928.0-66-ga55bd73d4 (automated)gVisor bot
2020-09-29Merge release-20200921.0-71-g4a428b13b (automated)gVisor bot
2020-09-29Add /proc/[pid]/cwdFabricio Voznika
PiperOrigin-RevId: 334478850
2020-09-21Merge release-20200907.0-157-gca3087472 (automated)gVisor bot
2020-09-20Merge pull request #3651 from ianlewis:ip-forwardinggVisor bot
PiperOrigin-RevId: 332760843
2020-09-14Merge release-20200907.0-40-g2969b1740 (automated)gVisor bot
2020-09-14Correct FDSize in /proc/[pid]/status.Jamie Liu
In Linux, FDSize is fs/proc/array.c:task_state() => struct fdtable::max_fds, which is set to the underlying array's length in fs/file.c:alloc_fdtable(). Follow-up changes: - Remove FDTable.GetRefs() and FDTable.GetRefsVFS2(), which are unused. - Reset FDTable.used to 0 during restore, since the subsequent calls to FDTable.setAll() increment it again, causing its value to be doubled. (After this CL, FDTable.used is only used to avoid reallocation in FDTable.GetFDs(), so this fix is not very visible.) PiperOrigin-RevId: 331588190
2020-08-17Merge branch 'master' into ip-forwardingIan Lewis
- Merges aleksej-paschenko's with HEAD - Adds vfs2 support for ip_forward
2020-08-06Merge release-20200804.0-27-g35312a95c (automated)gVisor bot
2020-08-05Add loss recovery option for TCP.Nayana Bidari
/proc/sys/net/ipv4/tcp_recovery is used to enable RACK loss recovery in TCP. PiperOrigin-RevId: 325157807
2020-08-03Merge release-20200622.1-313-gb2ae7ea1b (automated)gVisor bot
2020-08-03Plumbing context.Context to DecRef() and Release().Nayana Bidari
context is passed to DecRef() and Release() which is needed for SO_LINGER implementation. PiperOrigin-RevId: 324672584
2020-06-24Merge release-20200608.0-119-g364ac92ba (automated)gVisor bot
2020-05-27Merge release-20200518.0-45-g0bc022b7 (automated)gVisor bot
2020-05-06Merge release-20200422.0-34-g591ff0e (automated)gVisor bot
2020-05-06Add maximum memory limit.Nicolas Lacasse
PiperOrigin-RevId: 310179277
2020-04-21Merge release-20200323.0-207-g37e01fd (automated)gVisor bot
2020-04-21Misc VFS2 fixesFabricio Voznika
- Fix defer operation ordering in kernfs.Filesystem.AccessAt() - Add AT_NULL entry in proc/pid/auvx - Fix line padding in /proc/pid/maps - Fix linux_dirent serialization for getdents(2) - Remove file creation flags from vfs.FileDescription.statusFlags() Updates #1193, #1035 PiperOrigin-RevId: 307704159
2020-04-10Merge release-20200323.0-119-g7812661 (automated)gVisor bot
2020-04-09Merge pull request #2253 from amscanne:nogogVisor bot
PiperOrigin-RevId: 305807868
2020-04-08Merge release-20200323.0-93-gd8c0c1d (automated)gVisor bot
2020-04-08Enable SubprocessExited and SubprocessZombie for gVisorFabricio Voznika
Updates #164 PiperOrigin-RevId: 305544029
2020-04-08Fix all copy locks violations.Adin Scannell
This required minor restructuring of how system call tables were saved and restored, but it makes way more sense this way. Updates #2243
2020-04-03Merge release-20200323.0-60-g5b2396d (automated)gVisor bot
2020-04-02Fix typo in TODO comments.Dean Deng
PiperOrigin-RevId: 304508083
2020-03-13Merge release-20200219.0-170-g1c05352 (automated)gVisor bot
2020-03-13Fix oom_score_adj.Jamie Liu
- Make oomScoreAdj a ThreadGroup field (Linux: signal_struct::oom_score_adj). - Avoid deadlock caused by Task.OOMScoreAdj()/SetOOMScoreAdj() locking Task.mu and TaskSet.mu in the wrong order (via Task.ExitState()). PiperOrigin-RevId: 300814698
2020-03-10Merge release-20200219.0-131-gb36de6e (automated)gVisor bot
2020-03-09Move /proc/net to /proc/PID/net, and make /proc/net -> /proc/self/net.Ting-Yu Wang
Issue #1833 PiperOrigin-RevId: 299998105
2020-03-06Merge release-20200219.0-111-gda48fc6 (automated)gVisor bot
2020-03-05Stub oom_score_adj and oom_score.Ian Lewis
Adds an oom_score_adj and oom_score proc file stub. oom_score_adj accepts writes of values -1000 to 1000 and persists the value with the task. New tasks inherit the parent's oom_score_adj. oom_score is a read-only stub that always returns the value '0'. Issue #202 PiperOrigin-RevId: 299245355
2020-02-25Merge release-20200219.0-34-g53504e2 (automated)gVisor bot
2020-02-25Fix mount refcount issue.Adin Scannell
Each mount is holds a reference on a root Dirent, but the mount itself may live beyond it's own reference. This means that a call to Root() can come after the associated reference has been dropped. Instead of introducing a separate layer of references for mount objects, we simply change the Root() method to use TryIncRef() and allow it to return nil if the mount is already gone. This requires updating a small number of callers and minimizes the change (since VFSv2 will replace this code shortly). PiperOrigin-RevId: 297174230
2020-02-20Merge release-20200211.0-57-g4a73bae (automated)gVisor bot
2020-02-20Initial network namespace support.gVisor bot
TCP/IP will work with netstack networking. hostinet doesn't work, and sockets will have the same behavior as it is now. Before the userspace is able to create device, the default loopback device can be used to test. /proc/net and /sys/net will still be connected to the root network stack; this is the same behavior now. Issue #1833 PiperOrigin-RevId: 296309389
2020-02-14Merge release-20200211.0-17-g4075de1 (automated)gVisor bot
2020-02-14Plumb VFS2 inside the SentrygVisor bot
- Added fsbridge package with interface that can be used to open and read from VFS1 and VFS2 files. - Converted ELF loader to use fsbridge - Added VFS2 types to FSContext - Added vfs.MountNamespace to ThreadGroup Updates #1623 PiperOrigin-RevId: 295183950
2020-02-11Merge release-20200127.0-130-g9be46e5 (automated)gVisor bot
2020-02-06Merge release-20200127.0-85-g1b6a12a (automated)gVisor bot
2020-02-05Add notes to relevant tests.Adin Scannell
These were out-of-band notes that can help provide additional context and simplify automated imports. PiperOrigin-RevId: 293525915
2020-01-27Merge release-20200115.0-110-g0e2f1b7 (automated)gVisor bot
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