/* Bypass encapsulation if the destination is local */
static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan,
- struct vxlan_dev *dst_vxlan, __be32 vni)
+ struct vxlan_dev *dst_vxlan, __be32 vni,
+ bool snoop)
{
struct pcpu_sw_netstats *tx_stats, *rx_stats;
union vxlan_addr loopback;
goto drop;
}
- if (dst_vxlan->cfg.flags & VXLAN_F_LEARN)
+ if ((dst_vxlan->cfg.flags & VXLAN_F_LEARN) && snoop)
vxlan_snoop(dev, &loopback, eth_hdr(skb)->h_source, 0, vni);
u64_stats_update_begin(&tx_stats->syncp);
return -ENOENT;
}
- vxlan_encap_bypass(skb, vxlan, dst_vxlan, vni);
+ vxlan_encap_bypass(skb, vxlan, dst_vxlan, vni, true);
return 1;
}
if (vxlan_addr_any(dst)) {
if (did_rsc) {
/* short-circuited back to local bridge */
- vxlan_encap_bypass(skb, vxlan, vxlan, default_vni);
+ vxlan_encap_bypass(skb, vxlan, vxlan,
+ default_vni, true);
return;
}
goto drop;
}
ndst = &rt->dst;
- skb_tunnel_check_pmtu(skb, ndst, VXLAN_HEADROOM, false);
+ err = skb_tunnel_check_pmtu(skb, ndst, VXLAN_HEADROOM,
+ netif_is_any_bridge_port(dev));
+ if (err < 0) {
+ goto tx_error;
+ } else if (err) {
+ if (info) {
+ struct in_addr src, dst;
+
+ src = remote_ip.sin.sin_addr;
+ dst = local_ip.sin.sin_addr;
+ info->key.u.ipv4.src = src.s_addr;
+ info->key.u.ipv4.dst = dst.s_addr;
+ }
+ vxlan_encap_bypass(skb, vxlan, vxlan, vni, false);
+ dst_release(ndst);
+ goto out_unlock;
+ }
tos = ip_tunnel_ecn_encap(RT_TOS(tos), old_iph, skb);
ttl = ttl ? : ip4_dst_hoplimit(&rt->dst);
goto out_unlock;
}
- skb_tunnel_check_pmtu(skb, ndst, VXLAN6_HEADROOM, false);
+ err = skb_tunnel_check_pmtu(skb, ndst, VXLAN6_HEADROOM,
+ netif_is_any_bridge_port(dev));
+ if (err < 0) {
+ goto tx_error;
+ } else if (err) {
+ if (info) {
+ struct in6_addr src, dst;
+
+ src = remote_ip.sin6.sin6_addr;
+ dst = local_ip.sin6.sin6_addr;
+ info->key.u.ipv6.src = src;
+ info->key.u.ipv6.dst = dst;
+ }
+
+ vxlan_encap_bypass(skb, vxlan, vxlan, vni, false);
+ dst_release(ndst);
+ goto out_unlock;
+ }
tos = ip_tunnel_ecn_encap(RT_TOS(tos), old_iph, skb);
ttl = ttl ? : ip6_dst_hoplimit(ndst);