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hostinet: Allow MSG_OOB in send/recvmsg.

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This is needed for the python runtime tests (not yet enabled for hostinet).

PiperOrigin-RevId: 514593833
This commit is contained in:
Nicolas Lacasse
2023-03-06 19:36:36 -08:00
committed by gVisor bot
parent 15c87e4a93
commit bdb4a4c5ea
1 changed files with 9 additions and 1 deletions
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pkg/sentry/socket/hostinet/socket.go
+9 -1
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@@ -480,6 +480,7 @@ func (s *Socket) recvMsgFromHost(iovs []unix.Iovec, flags int, senderRequested b
const allowedRecvMsgFlags = unix.MSG_CTRUNC |
unix.MSG_DONTWAIT |
unix.MSG_ERRQUEUE |
unix.MSG_OOB |
unix.MSG_PEEK |
unix.MSG_TRUNC |
unix.MSG_WAITALL
@@ -653,10 +654,17 @@ func parseUnixControlMessages(unixControlMessages []unix.SocketControlMessage) s
return controlMessages
}
const allowedSendMsgFlags = unix.MSG_DONTWAIT |
unix.MSG_EOR |
unix.MSG_FASTOPEN |
unix.MSG_MORE |
unix.MSG_NOSIGNAL |
unix.MSG_OOB
// SendMsg implements socket.Socket.SendMsg.
func (s *Socket) SendMsg(t *kernel.Task, src usermem.IOSequence, to []byte, flags int, haveDeadline bool, deadline ktime.Time, controlMessages socket.ControlMessages) (int, *syserr.Error) {
// Only allow known and safe flags.
if flags&^(unix.MSG_DONTWAIT|unix.MSG_EOR|unix.MSG_FASTOPEN|unix.MSG_MORE|unix.MSG_NOSIGNAL) != 0 {
if flags&^allowedSendMsgFlags != 0 {
return 0, syserr.ErrInvalidArgument
}