vxlan: use ip_route_output
Select source address for VXLAN packet based on route destination
and don't lie to route code. VXLAN is not GRE.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 882a041..0b53a9c 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -680,9 +680,13 @@
hash = skb_get_rxhash(skb);
- rt = ip_route_output_gre(dev_net(dev), &fl4, dst,
- vxlan->saddr, vxlan->vni,
- RT_TOS(tos), vxlan->link);
+ memset(&fl4, 0, sizeof(fl4));
+ fl4.flowi4_oif = vxlan->link;
+ fl4.flowi4_tos = RT_TOS(tos);
+ fl4.daddr = dst;
+ fl4.saddr = vxlan->saddr;
+
+ rt = ip_route_output_key(dev_net(dev), &fl4);
if (IS_ERR(rt)) {
netdev_dbg(dev, "no route to %pI4\n", &dst);
dev->stats.tx_carrier_errors++;
@@ -724,7 +728,7 @@
iph->frag_off = df;
iph->protocol = IPPROTO_UDP;
iph->tos = vxlan_ecn_encap(tos, old_iph, skb);
- iph->daddr = fl4.daddr;
+ iph->daddr = dst;
iph->saddr = fl4.saddr;
iph->ttl = ttl ? : ip4_dst_hoplimit(&rt->dst);