Age | Commit message (Collapse) | Author |
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PiperOrigin-RevId: 343196927
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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
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PiperOrigin-RevId: 343152780
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PiperOrigin-RevId: 343146856
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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
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PiperOrigin-RevId: 343130667
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PiperOrigin-RevId: 343123278
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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
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Redefine stack.WritePacket into stack.WritePacketToRemote which lets the NIC
decide whether to append link headers.
PiperOrigin-RevId: 343071742
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This was added by mistake in cl/342868552.
PiperOrigin-RevId: 343021431
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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
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PiperOrigin-RevId: 343000335
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PiperOrigin-RevId: 342992936
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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
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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
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Fixes #2714
PiperOrigin-RevId: 342950412
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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
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Also add the lock order for verity fs, and add a lock to protect dentry
hash.
PiperOrigin-RevId: 342946537
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PiperOrigin-RevId: 342943430
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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
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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
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Optimize and bug fix all fpsimd related code.
Signed-off-by: Robin Luk <lubin.lu@antgroup.com>
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I added 2 unified processing functions for all exceptions of el/el0
Signed-off-by: Robin Luk <lubin.lu@antgroup.com>
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PiperOrigin-RevId: 342768550
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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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Closes #4746
PiperOrigin-RevId: 342747165
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- 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
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