rxrpc: Enable IPv6 checksums on transport socket
authorDavid Howells <dhowells@redhat.com>
Fri, 29 Apr 2022 20:05:16 +0000 (21:05 +0100)
committerDavid S. Miller <davem@davemloft.net>
Sat, 30 Apr 2022 12:59:34 +0000 (13:59 +0100)
commit39cb9faa5d46d0d0694f4b594ef905f517600c8e
tree2671a413a79e1980d25b271990bf48d4f6396721
parent95098d5ac2551769807031444e55a0da5d4f0952
rxrpc: Enable IPv6 checksums on transport socket

AF_RXRPC doesn't currently enable IPv6 UDP Tx checksums on the transport
socket it opens and the checksums in the packets it generates end up 0.

It probably should also enable IPv6 UDP Rx checksums and IPv4 UDP
checksums.  The latter only seem to be applied if the socket family is
AF_INET and don't seem to apply if it's AF_INET6.  IPv4 packets from an
IPv6 socket seem to have checksums anyway.

What seems to have happened is that the inet_inv_convert_csum() call didn't
get converted to the appropriate udp_port_cfg parameters - and
udp_sock_create() disables checksums unless explicitly told not too.

Fix this by enabling the three udp_port_cfg checksum options.

Fixes: 1a9b86c9fd95 ("rxrpc: use udp tunnel APIs instead of open code in rxrpc_open_socket")
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: Vadim Fedorenko <vfedorenko@novek.ru>
cc: David S. Miller <davem@davemloft.net>
cc: linux-afs@lists.infradead.org
Signed-off-by: David S. Miller <davem@davemloft.net>
net/rxrpc/local_object.c