diff options
Diffstat (limited to 'drivers/net/vxlan.c')
| -rw-r--r-- | drivers/net/vxlan.c | 57 |
1 files changed, 47 insertions, 10 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index a7c3939264b0..b9fefe27e3e8 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -2500,7 +2500,8 @@ static struct dst_entry *vxlan6_get_route(struct vxlan_dev *vxlan, /* 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; @@ -2532,7 +2533,7 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan, 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); @@ -2581,7 +2582,7 @@ static int encap_bypass_if_local(struct sk_buff *skb, struct net_device *dev, return -ENOENT; } - vxlan_encap_bypass(skb, vxlan, dst_vxlan, vni); + vxlan_encap_bypass(skb, vxlan, dst_vxlan, vni, true); return 1; } @@ -2617,7 +2618,8 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, 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; @@ -2720,9 +2722,25 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, } ndst = &rt->dst; - skb_tunnel_check_pmtu(skb, ndst, VXLAN_HEADROOM); + 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); + tos = ip_tunnel_ecn_encap(tos, old_iph, skb); ttl = ttl ? : ip4_dst_hoplimit(&rt->dst); err = vxlan_build_skb(skb, ndst, sizeof(struct iphdr), vni, md, flags, udp_sum); @@ -2760,9 +2778,26 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, goto out_unlock; } - skb_tunnel_check_pmtu(skb, ndst, VXLAN6_HEADROOM); + 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); + tos = ip_tunnel_ecn_encap(tos, old_iph, skb); ttl = ttl ? : ip6_dst_hoplimit(ndst); skb_scrub_packet(skb, xnet); err = vxlan_build_skb(skb, ndst, sizeof(struct ipv6hdr), @@ -4485,10 +4520,12 @@ static int vxlan_netdevice_event(struct notifier_block *unused, struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id); if (event == NETDEV_UNREGISTER) { - vxlan_offload_rx_ports(dev, false); + if (!dev->udp_tunnel_nic_info) + vxlan_offload_rx_ports(dev, false); vxlan_handle_lowerdev_unregister(vn, dev); } else if (event == NETDEV_REGISTER) { - vxlan_offload_rx_ports(dev, true); + if (!dev->udp_tunnel_nic_info) + vxlan_offload_rx_ports(dev, true); } else if (event == NETDEV_UDP_TUNNEL_PUSH_INFO || event == NETDEV_UDP_TUNNEL_DROP_INFO) { vxlan_offload_rx_ports(dev, event == NETDEV_UDP_TUNNEL_PUSH_INFO); |