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2020-07-24Merge release-20200622.1-209-gbac4ebaab (automated)gVisor bot
2020-07-23FileDescription is hard to spell.Dean Deng
Fix typos. PiperOrigin-RevId: 322913282
2020-07-24Merge release-20200622.1-208-g82a5cada5 (automated)gVisor bot
2020-07-23Add AfterFunc to tcpip.ClockSam Balana
Changes the API of tcpip.Clock to also provide a method for scheduling and rescheduling work after a specified duration. This change also implements the AfterFunc method for existing implementations of tcpip.Clock. This is the groundwork required to mock time within tests. All references to CancellableTimer has been replaced with the tcpip.Job interface, allowing for custom implementations of scheduling work. This is a BREAKING CHANGE for clients that implement their own tcpip.Clock or use tcpip.CancellableTimer. Migration plan: 1. Add AfterFunc(d, f) to tcpip.Clock 2. Replace references of tcpip.CancellableTimer with tcpip.Job 3. Replace calls to tcpip.CancellableTimer#StopLocked with tcpip.Job#Cancel 4. Replace calls to tcpip.CancellableTimer#Reset with tcpip.Job#Schedule 5. Replace calls to tcpip.NewCancellableTimer with tcpip.NewJob. PiperOrigin-RevId: 322906897
2020-07-24Merge release-20200622.1-207-g4ec351633 (automated)gVisor bot
2020-07-23Implement get/set_robust_list.Nicolas Lacasse
PiperOrigin-RevId: 322904430
2020-07-23Merge release-20200622.1-206-g5e34ee68c (automated)gVisor bot
2020-07-23Merge pull request #3024 from ridwanmsharif:ridwanmsharif/fuse-stub-implgVisor bot
PiperOrigin-RevId: 322890087
2020-07-23Merge release-20200622.1-203-g8fed97794 (automated)gVisor bot
2020-07-23Add task work mechanism.Dean Deng
Like task_work in Linux, this allows us to register callbacks to be executed before returning to userspace. This is needed for kcov support, which requires coverage information to be up-to-date whenever we are in user mode. We will provide coverage data through the kcov interface to enable coverage-directed fuzzing in syzkaller. One difference from Linux is that task work cannot queue work before the transition to userspace that it precedes; queued work will be picked up before the next transition. PiperOrigin-RevId: 322889984
2020-07-23Merge release-20200622.1-201-g4eb3c8c7e (automated)gVisor bot
2020-07-23kvm-tls-2:add the preservation of user-TLS in the Arm64 kvm platformlubinszARM
This patch load/save TLS for the container application. Related issue: full context-switch supporting for Arm64 #1238 COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/2761 from lubinszARM:pr_tls_2 cb5dbca1c9c3f378002406da7a58887f9b5032b3 PiperOrigin-RevId: 322887044
2020-07-23Use mode supplied by the mount optionsRidwan Sharif
2020-07-23Added stub FUSE filesystemRidwan Sharif
Allow FUSE filesystems to be mounted using libfuse. The appropriate flags and mount options are parsed and understood by fusefs.
2020-07-23Merge release-20200622.1-195-g6f7f73996 (automated)gVisor bot
2020-07-23Marshallable socket opitons.Ayush Ranjan
Socket option values are now required to implement marshal.Marshallable. Co-authored-by: Rahat Mahmood <rahat@google.com> PiperOrigin-RevId: 322831612
2020-07-23Merge release-20200622.1-193-gb396d3882 (automated)gVisor bot
2020-07-23Port sendfile to vfs2.Nicolas Lacasse
And do some refactoring of the wait logic in sendfile/splice/tee. Updates #1035 #2923 PiperOrigin-RevId: 322815521
2020-07-23Merge release-20200622.1-192-g4fbd0728a (automated)gVisor bot
2020-07-23[vfs2][gofer] Fix update attributes race condition.Ayush Ranjan
We were getting the file attributes before locking the metadataMu which was causing stale updates to the file attributes. Fixes OpenTest_AppendConcurrentWrite. Updates #2923 PiperOrigin-RevId: 322804438
2020-07-22Merge release-20200622.1-187-gbd98f8201 (automated)gVisor bot
2020-07-22iptables: replace maps with arraysKevin Krakauer
For iptables users, Check() is a hot path called for every packet one or more times. Let's avoid a bunch of map lookups. PiperOrigin-RevId: 322678699
2020-07-22Merge release-20200622.1-186-g9654bf04a (automated)gVisor bot
2020-07-22[vfs2][tmpfs] Implement O_APPENDAyush Ranjan
Updates #2923 PiperOrigin-RevId: 322671489
2020-07-22Merge release-20200622.1-185-g39525d64c (automated)gVisor bot
2020-07-22Add O_APPEND support in vfs2 gofer.Ayush Ranjan
Helps in fixing open syscall tests: AppendConcurrentWrite and AppendOnly. We also now update the file size for seekable special files (regular files) which we were not doing earlier. Updates #2923 PiperOrigin-RevId: 322670843
2020-07-22Merge release-20200622.1-184-g71bf90c55 (automated)gVisor bot
2020-07-22Support for receiving outbound packets in AF_PACKET.Bhasker Hariharan
Updates #173 PiperOrigin-RevId: 322665518
2020-07-17Merge release-20200622.1-173-gdcf6ddc27 (automated)gVisor bot
2020-07-16Add support to return protocol in recvmsg for AF_PACKET.Bhasker Hariharan
Updates #173 PiperOrigin-RevId: 321690756
2020-07-16Merge release-20200622.1-170-g0a745cb34 (automated)gVisor bot
2020-07-15Merge pull request #3236 from craig08:fuse-kernfs-inode-stat-add-ctxgVisor bot
PiperOrigin-RevId: 321496734
2020-07-15Merge release-20200622.1-164-gdb653bb34 (automated)gVisor bot
2020-07-15fdbased: Vectorized write for packet; relax writev syscall filter.Ting-Yu Wang
Now it calls pkt.Data.ToView() when writing the packet. This may require copying when the packet is large, which puts the worse case in an even worse situation. This sent out in a separate preparation change as it requires syscall filter changes. This change will be followed by the change for the adoption of the new PacketHeader API. PiperOrigin-RevId: 321447003
2020-07-15Merge release-20200622.1-162-gfef90c61c (automated)gVisor bot
2020-07-15Fix minor bugs in a couple of interface IOCTLs.Bhasker Hariharan
gVisor incorrectly returns the wrong ARP type for SIOGIFHWADDR. This breaks tcpdump as it tries to interpret the packets incorrectly. Similarly, SIOCETHTOOL is used by tcpdump to query interface properties which fails with an EINVAL since we don't implement it. For now change it to return EOPNOTSUPP to indicate that we don't support the query rather than return EINVAL. NOTE: ARPHRD types for link endpoints are distinct from NIC capabilities and NIC flags. In Linux all 3 exist eg. ARPHRD types are stored in dev->type field while NIC capabilities are more like the device features which can be queried using SIOCETHTOOL but not modified and NIC Flags are fields that can be modified from user space. eg. NIC status (UP/DOWN/MULTICAST/BROADCAST) etc. Updates #2746 PiperOrigin-RevId: 321436525
2020-07-15Merge release-20200622.1-160-g8939fae0a (automated)gVisor bot
2020-07-15Merge pull request #3165 from ridwanmsharif:ridwanmsharif/fuse-off-by-defaultgVisor bot
PiperOrigin-RevId: 321411758
2020-07-15Merge release-20200622.1-158-gfc48ace73 (automated)gVisor bot
2020-07-15hostinet: fix fd leak in fdnotifier for VFS2Tiwei Bie
When we failed to create the new socket after adding the fd to fdnotifier, we should remove the fd from fdnotifier, because we are going to close the fd directly. Fixes: #3241 Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
2020-07-15Merge release-20200622.1-156-g1b9965e06 (automated)gVisor bot
2020-07-14Update special file option name in comment.Dean Deng
PiperOrigin-RevId: 321269281
2020-07-14Include context in kernfs.Inode.Stat methodCraig Chi
To implement stat(2) in FUSE, we have to embed credentials and pid in request header. The information should be extracted from the context passed to VFS layer. Therefore `Stat()` signature in `kernfs.Inode` interface should include context as first argument. Some other fs implementations need to be modified as well, such as devpts, host, pipefs, and proc. Fixes #3235
2020-07-13Merge pull request #3200 from lubinszARM:pr_kvm_ut_1gVisor bot
PiperOrigin-RevId: 321060717
2020-07-13Merge pull request #2672 from amscanne:shim-integratedgVisor bot
PiperOrigin-RevId: 321053634
2020-07-13Merge release-20200622.1-108-g59a547940 (automated)gVisor bot
2020-07-13Disable debug time adjustment loggingFabricio Voznika
When --debug is enabled, the following log messages are printed every second filling up the log: D0430 18:04:42.823775 129561 parameters.go:238] Clock(Monotonic): error: 46 ns, adjusted frequency from 3591713733 Hz to 3591714196 Hz D0430 18:04:42.823870 129561 parameters.go:238] Clock(Realtime): error: 36 ns, adjusted frequency from 3591714003 Hz to 3591714169 Hz D0430 18:04:42.823892 129561 timekeeper.go:209] Updating VDSO parameters: {monotonicReady:1 monotonicBaseCycles:15758797714254696 monotonicBaseRef:29000233837 monotonicFrequency:3591714196 realtimeReady:1 realtimeBaseCycles:15758797714610880 realtimeBaseRef:1588269882823867374 realtimeFrequency:3591714169} Info and warning messages for larger changes are kept the same. PiperOrigin-RevId: 321048523
2020-07-13Merge release-20200622.1-104-gcf0826653 (automated)gVisor bot
2020-07-13Clean up inotify comments.Dean Deng
PiperOrigin-RevId: 321028238
2020-07-13Merge release-20200622.1-102-g6994f4d59 (automated)gVisor bot
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