af_vsock: implement SEQPACKET receive loop

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Add receive loop for SEQPACKET. It looks like receive loop for
STREAM, but there are differences:
1) It doesn't call notify callbacks.
2) It doesn't care about 'SO_SNDLOWAT' and 'SO_RCVLOWAT' values, because
   there is no sense for these values in SEQPACKET case.
3) It waits until whole record is received.
4) It processes and sets 'MSG_TRUNC' flag.

So to avoid extra conditions for two types of socket inside one loop, two
independent functions were created.

Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Arseny Krasnov 2021-06-11 14:10:34 +03:00 • committed by David S. Miller

parent 19c1b90e19

commit 9942c192b2

2 changed files with 58 additions and 1 deletions

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4

include/net/af_vsock.h

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55

net/vmw_vsock/af_vsock.c

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