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2020-11-19Merge release-20201109.0-84-ge5650d124 (automated)gVisor bot
2020-11-18[netstack] Move SO_KEEPALIVE and SO_ACCEPTCONN option to SocketOptions.Ayush Ranjan
PiperOrigin-RevId: 343217712
2020-11-19Merge release-20201109.0-81-g3a16b829c (automated)gVisor bot
2020-11-18Port filesystem metrics to VFS2.Jamie Liu
PiperOrigin-RevId: 343196927
2020-11-18Merge release-20201109.0-79-gdf37babd5 (automated)gVisor bot
2020-11-18[netstack] Move SO_REUSEPORT and SO_REUSEADDR option to SocketOptions.Ayush Ranjan
This changes also introduces: - `SocketOptionsHandler` interface which can be implemented by endpoints to handle endpoint specific behavior on SetSockOpt. This is analogous to what Linux does. - `DefaultSocketOptionsHandler` which is a default implementation of the above. This is embedded in all endpoints so that we don't have to uselessly implement empty functions. Endpoints with specific behavior can override the embedded method by manually defining its own implementation. PiperOrigin-RevId: 343158301
2020-11-18Merge release-20201109.0-77-g3e73c519a (automated)gVisor bot
2020-11-18[netstack] Move SO_NO_CHECK option to SocketOptions.Ayush Ranjan
PiperOrigin-RevId: 343146856
2020-11-18Merge release-20201109.0-74-gc978ab047 (automated)gVisor bot
2020-11-18Merge pull request #4791 from lubinszARM:pr_pt_uppergVisor bot
PiperOrigin-RevId: 343130667
2020-11-18Merge release-20201109.0-72-gd6e788a8d (automated)gVisor bot
2020-11-18Add a few syslog messages.Etienne Perot
PiperOrigin-RevId: 343123278
2020-11-18Merge release-20201109.0-71-gfc342fb43 (automated)gVisor bot
2020-11-18[netstack] Move SO_PASSCRED option to SocketOptions.Ayush Ranjan
This change also makes the following fixes: - Make SocketOptions use atomic operations instead of having to acquire/drop locks upon each get/set option. - Make documentation more consistent. - Remove tcpip.SocketOptions from socketOpsCommon because it already exists in transport.Endpoint. - Refactors get/set socket options tests to be easily extendable. PiperOrigin-RevId: 343103780
2020-11-18Merge release-20201109.0-66-gee6dd8cb9 (automated)gVisor bot
2020-11-17Merge pull request #4840 from lubinszARM:pr_fpsimd_1gVisor bot
PiperOrigin-RevId: 343000335
2020-11-18Merge release-20201109.0-64-g05223889b (automated)gVisor bot
2020-11-17fs/fuse: don't dereference fuse.DeviceFD.fs if it is nilAndrei Vagin
PiperOrigin-RevId: 342992936
2020-11-17Merge release-20201109.0-62-g10ba578c0 (automated)gVisor bot
2020-11-17tmpfs: make sure that a dentry will not be destroyed before the open() callAndrei Vagin
If we don't hold a reference, the dentry can be destroyed by another thread. Reported-by: syzbot+f2132e50060c41f6d41f@syzkaller.appspotmail.com PiperOrigin-RevId: 342951940
2020-11-17Add consistent precondition formatting for verityChong Cai
Also add the lock order for verity fs, and add a lock to protect dentry hash. PiperOrigin-RevId: 342946537
2020-11-17Merge release-20201109.0-58-gc1e1e7a9a (automated)gVisor bot
2020-11-17Merge pull request #4836 from lubinszARM:pr_exception_el0_el1gVisor bot
PiperOrigin-RevId: 342943430
2020-11-17Merge release-20201109.0-55-gfb9a649f3 (automated)gVisor bot
2020-11-17Fix SO_ERROR behavior for TCP in gVisor.Bhasker Hariharan
Fixes the behaviour of SO_ERROR for tcp sockets where in linux it returns sk->sk_err and if sk->sk_err is 0 then it returns sk->sk_soft_err. In gVisor TCP we endpoint.HardError is the equivalent of sk->sk_err and endpoint.LastError holds soft errors. This change brings this into alignment with Linux such that both hard/soft errors are cleared when retrieved using getsockopt(.. SO_ERROR) is called on a socket. Fixes #3812 PiperOrigin-RevId: 342868552
2020-11-17arm64 kvm: optimize all fpsimd related codeRobin Luk
Optimize and bug fix all fpsimd related code. Signed-off-by: Robin Luk <lubin.lu@antgroup.com>
2020-11-17arm64 kvm: add the processing functions for all el0/el1 exceptionsRobin Luk
I added 2 unified processing functions for all exceptions of el/el0 Signed-off-by: Robin Luk <lubin.lu@antgroup.com>
2020-11-17Merge release-20201109.0-53-g267560d15 (automated)gVisor bot
2020-11-16Reset watchdog timer between sendfile() iterations.Jamie Liu
As part of this, change Task.interrupted() to not drain Task.interruptChan, and do so explicitly using new function Task.unsetInterrupted() instead. PiperOrigin-RevId: 342768365
2020-11-17Merge release-20201109.0-52-gd48610795 (automated)gVisor bot
2020-11-16Allow RLIMIT_RSS to be setFabricio Voznika
Closes #4746 PiperOrigin-RevId: 342747165
2020-11-16Merge release-20201109.0-51-gcc5cfce4c (automated)gVisor bot
2020-11-16Remove ARP address workaroundGhanan Gowripalan
- Make AddressableEndpoint optional for NetworkEndpoint. Not all NetworkEndpoints need to support addressing (e.g. ARP), so AddressableEndpoint should only be implemented for protocols that support addressing such as IPv4 and IPv6. With this change, tcpip.ErrNotSupported will be returned by the stack when attempting to modify addresses on a network endpoint that does not support addressing. Now that packets are fully handled at the network layer, and (with this change) addresses are optional for network endpoints, we no longer need the workaround for ARP where a fake ARP address was added to each NIC that performs ARP so that packets would be delivered to the ARP layer. PiperOrigin-RevId: 342722547
2020-11-14Merge release-20201030.0-96-g182c12601 (automated)gVisor bot
2020-11-13Log task goroutine IDs in the sentry watchdog.Jamie Liu
PiperOrigin-RevId: 342373580
2020-11-13Merge release-20201030.0-94-ga1cb52447 (automated)gVisor bot
2020-11-13Check for misuse of kernel.Task as context.Context.Jamie Liu
Checks in Task.block() and Task.Value() are conditional on race detection being enabled, since these functions are relatively hot. Checks in Task.SleepStart() and Task.UninterruptibleSleepStart() are enabled unconditionally, since these functions are not thought to lie on any critical paths, and misuse of these functions is required for b/168241471 to manifest. PiperOrigin-RevId: 342342175
2020-11-13Merge release-20201030.0-93-g89517eca4 (automated)gVisor bot
2020-11-13Have fuse.DeviceFD hold reference on fuse.filesystem.Jamie Liu
This is actually just b/168751672 again; cl/332394146 was incorrectly reverted by cl/341411151. Document the reference holder to reduce the likelihood that this happens again. Also document a few other bugs observed in the process. PiperOrigin-RevId: 342339144
2020-11-13Merge release-20201030.0-86-ge869e2c7c (automated)gVisor bot
2020-11-13fs/tmpfs: change regularFile.size atomicallyAndrei Vagin
PiperOrigin-RevId: 342221309
2020-11-13Merge release-20201030.0-85-gcc1b20590 (automated)gVisor bot
2020-11-13fs/tmpfs: use atomic operations to access inode.modeAndrei Vagin
PiperOrigin-RevId: 342214859
2020-11-13Merge release-20201030.0-83-g5bb64ce1b (automated)gVisor bot
2020-11-12Refactor SOL_SOCKET optionsNayana Bidari
Store all the socket level options in a struct and call {Get/Set}SockOpt on this struct. This will avoid implementing socket level options on all endpoints. This CL contains implementing one socket level option for tcp and udp endpoints. PiperOrigin-RevId: 342203981
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
2020-11-12Add children names into verity hashChong Cai
children names map can be used to verify whether a child is expected during walking, so that we can detect unexpected modifications that deleted/renamed both the target file and the corresponding merkle tree file. PiperOrigin-RevId: 342170715
2020-11-13Merge release-20201030.0-75-g468caff45 (automated)gVisor bot
2020-11-12Rename kernel.TaskContext to kernel.TaskImage.Jamie Liu
This reduces confusion with context.Context (which is also relevant to kernel.Tasks) and is consistent with existing function kernel.LoadTaskImage(). PiperOrigin-RevId: 342167298
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