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authorAsbjørn Sloth Tønnesen <asbjorn@asbjorn.st>2016-11-07 20:39:26 +0000
committerDavid S. Miller <davem@davemloft.net>2016-11-09 18:55:36 -0500
commit97b7af097edb8b4d2456f16b75938cf119ed0c97 (patch)
treedc11892dd761e400488885c5c7d6313ba4b383ff /net/l2tp
parent7ff516ffe4ec723aad824d68d8a23751330e8f19 (diff)
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: Asbjoern Sloth Toennesen <asbjorn@asbjorn.st> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp')
-rw-r--r--net/l2tp/l2tp_netlink.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index 2abd100b8395..494910d84602 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -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)))