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authorDavid S. Miller <davem@davemloft.net>2012-07-13 05:03:45 -0700
committerDavid S. Miller <davem@davemloft.net>2012-07-20 13:31:20 -0700
commitf8126f1d5136be1ca1a3536d43ad7a710b5620f8 (patch)
tree8a92815052257c4ca29461f5b9ddaaeac288a7ed /net/ipv4/ip_gre.c
parentf1ce3062c53809d862d8a04e7a0566c3cc4e0bda (diff)
downloadlinux-f8126f1d5136be1ca1a3536d43ad7a710b5620f8.tar.bz2
ipv4: Adjust semantics of rt->rt_gateway.
In order to allow prefixed routes, we have to adjust how rt_gateway is set and interpreted. The new interpretation is: 1) rt_gateway == 0, destination is on-link, nexthop is iph->daddr 2) rt_gateway != 0, destination requires a nexthop gateway Abstract the fetching of the proper nexthop value using a new inline helper, rt_nexthop(), as suggested by Joe Perches. Signed-off-by: David S. Miller <davem@davemloft.net> Tested-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Diffstat (limited to 'net/ipv4/ip_gre.c')
-rw-r--r--net/ipv4/ip_gre.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 42c44b1403c9..b062a98574f2 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -766,7 +766,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
if (skb->protocol == htons(ETH_P_IP)) {
rt = skb_rtable(skb);
- dst = rt->rt_gateway;
+ dst = rt_nexthop(rt, old_iph->daddr);
}
#if IS_ENABLED(CONFIG_IPV6)
else if (skb->protocol == htons(ETH_P_IPV6)) {