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Commit 97b7af09 authored by Asbjørn Sloth Tønnesen's avatar Asbjørn Sloth Tønnesen Committed by David S. Miller
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net: l2tp: netlink: l2tp_nl_tunnel_send: set UDP6 checksum flags 



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: default avatarAsbjoern Sloth Toennesen <asbjorn@asbjorn.st>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7ff516ff

net/l2tp/l2tp_netlink.c

+10 −0
Original line number Diff line number Diff line
@@ -384,6 +384,16 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 portid, u32 seq, int fla 
			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)))