This patch causes the proper attribute flags to be set,
in the case that IPv6 UDP checksums are disabled, so that
userspace ie. `ip l2tp show tunnel` knows about it.
Signed-off-by: Asbjoern Sloth Toennesen <asbjorn@asbjorn.st>
Signed-off-by: David S. Miller <davem@davemloft.net>
if (nla_put_u8(skb, L2TP_ATTR_UDP_CSUM, !sk->sk_no_check_tx))
goto nla_put_failure;
break;
+#if IS_ENABLED(CONFIG_IPV6)
+ case AF_INET6:
+ if (udp_get_no_check6_tx(sk) &&
+ nla_put_flag(skb, L2TP_ATTR_UDP_ZERO_CSUM6_TX))
+ goto nla_put_failure;
+ if (udp_get_no_check6_rx(sk) &&
+ nla_put_flag(skb, L2TP_ATTR_UDP_ZERO_CSUM6_RX))
+ goto nla_put_failure;
+ break;
+#endif
}
if (nla_put_u16(skb, L2TP_ATTR_UDP_SPORT, ntohs(inet->inet_sport)) ||
nla_put_u16(skb, L2TP_ATTR_UDP_DPORT, ntohs(inet->inet_dport)))