From ca78f18129999320466107887317b5d1c042accd Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Tue, 9 Oct 2012 20:35:48 +0000 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/net/vxlan.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 882a041d7594..0b53a9cb6f84 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -680,9 +680,13 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev) 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 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev) 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);