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authorAsbjørn Sloth Tønnesen <asbjorn@asbjorn.st>2016-11-07 21:39:25 +0100
committerDavid S. Miller <davem@davemloft.net>2016-11-10 00:55:36 +0100
commit7ff516ffe4ec723aad824d68d8a23751330e8f19 (patch)
tree9c88e3acec5a720e1e02edd1c046c8feb4bb9ef6 /net/l2tp
parentnet: l2tp: change L2TP_ATTR_UDP_ZERO_CSUM6_{RX, TX} attribute types (diff)
downloadlinux-7ff516ffe4ec723aad824d68d8a23751330e8f19.tar.xz
linux-7ff516ffe4ec723aad824d68d8a23751330e8f19.zip
net: l2tp: only set L2TP_ATTR_UDP_CSUM if AF_INET
Only set L2TP_ATTR_UDP_CSUM in l2tp_nl_tunnel_send() when it's running over IPv4. This prepares the code to also have IPv6 specific attributes. 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.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index 59aa2d204e4a..2abd100b8395 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -379,9 +379,14 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 portid, u32 seq, int fla
switch (tunnel->encap) {
case L2TP_ENCAPTYPE_UDP:
+ switch (sk->sk_family) {
+ case AF_INET:
+ if (nla_put_u8(skb, L2TP_ATTR_UDP_CSUM, !sk->sk_no_check_tx))
+ goto nla_put_failure;
+ break;
+ }
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)) ||
- nla_put_u8(skb, L2TP_ATTR_UDP_CSUM, !sk->sk_no_check_tx))
+ nla_put_u16(skb, L2TP_ATTR_UDP_DPORT, ntohs(inet->inet_dport)))
goto nla_put_failure;
/* NOBREAK */
case L2TP_ENCAPTYPE_IP: