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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-20201109.0-78-gc85bba038 (automated)gVisor bot
2020-11-18Automated rollback of changelist 342700744Nayana Bidari
PiperOrigin-RevId: 343152780
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-20201109.0-76-gd2b701758 (automated)gVisor bot
2020-11-18Remove the redundant containerIP parameterZeling Feng
PiperOrigin-RevId: 343144023
2020-11-18Merge release-20201109.0-75-g60b97bfda (automated)gVisor bot
2020-11-18Fix loopback subnet routing errorGhanan Gowripalan
Packets should be properly routed when sending packets to addresses in the loopback subnet which are not explicitly assigned to the loopback interface. Tests: - integration_test.TestLoopbackAcceptAllInSubnetUDP - integration_test.TestLoopbackAcceptAllInSubnetTCP PiperOrigin-RevId: 343135643
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-20201109.0-70-g87ed61ea0 (automated)gVisor bot
2020-11-18Remove outdated nogo exception.Dean Deng
PiperOrigin-RevId: 343096420
2020-11-18Merge release-20201109.0-69-g9d148627f (automated)gVisor bot
2020-11-18Introduce stack.WritePacketToRemote, remove LinkEndpoint.WriteRawPacketBruno Dal Bo
Redefine stack.WritePacket into stack.WritePacketToRemote which lets the NIC decide whether to append link headers. PiperOrigin-RevId: 343071742
2020-11-18Merge release-20201109.0-68-ga5e3fd1b2 (automated)gVisor bot
2020-11-17Remove sniffer from gonet_test.Bhasker Hariharan
This was added by mistake in cl/342868552. PiperOrigin-RevId: 343021431
2020-11-18Merge release-20201109.0-67-g0e32d98f3 (automated)gVisor bot
2020-11-17Fix endpoint.Read() when endpoint is in StateError.Bhasker Hariharan
If the endpoint is in StateError but e.hardErrorLocked() returns nil then return ErrClosedForRecieve. This can happen if a concurrent write on the same endpoint was in progress when the endpoint transitioned to an error state. PiperOrigin-RevId: 343018257
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-20201109.0-63-g949742be8 (automated)gVisor bot
2020-11-17Allow short writes from gofers.Nicolas Lacasse
They were returning io.ErrShortWrite, but that is not handled at higher levels and resulted in a panic. We can just return the short write directly from the p9 call without ErrShortWrite. PiperOrigin-RevId: 342960441
2020-11-17Merge release-20201109.0-62-g10ba578c0 (automated)gVisor bot
2020-11-17Merge release-20201109.0-61-ge2d9a68ee (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 support for TTY in multi-containerFabricio Voznika
Fixes #2714 PiperOrigin-RevId: 342950412
2020-11-17Merge release-20201109.0-60-g7492ed6bd (automated)gVisor bot
2020-11-17Add per-sniffer instance log prefixBruno Dal Bo
A prefix associated with a sniffer instance can help debug situations where more than one NIC (i.e. more than one sniffer) exists. PiperOrigin-RevId: 342950027
2020-11-17Merge release-20201109.0-59-g2d89f2340 (automated)gVisor bot
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-20201109.0-56-g05d2a26f7 (automated)gVisor bot
2020-11-17Fix possible deadlock in UDP.Write().Bhasker Hariharan
In UDP endpoint.Write() sendUDP is called with e.mu Rlocked. But if this happens to send a datagram over loopback which ends up generating an ICMP response of say ErrNoPortReachable, the handling of the response in HandleControlPacket also acquires e.mu using RLock. This is mostly fine unless there is a competing caller trying to acquire e.mu in exclusive mode using Lock(). This will deadlock as a caller waiting in Lock() disallows an new RLocks() to ensure it can actually acquire the Lock. This is documented here https://golang.org/pkg/sync/#RWMutex. This change releases the endpoint mutex before calling sendUDP to resolve the possibility of the deadlock. Reported-by: syzbot+537989797548c66e8ee3@syzkaller.appspotmail.com Reported-by: syzbot+eb0b73b4ab486f7673ba@syzkaller.appspotmail.com PiperOrigin-RevId: 342894148
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-20201109.0-54-g938aabeec (automated)gVisor bot
2020-11-16Minor flipcall refactoring.Jamie Liu
PiperOrigin-RevId: 342768550
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
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