diff options
| -rw-r--r-- | drivers/net/geneve.c | 56 |
1 files changed, 51 insertions, 5 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index de86b6d82132..c71f994fbc73 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -893,8 +893,31 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (IS_ERR(rt)) return PTR_ERR(rt); - skb_tunnel_check_pmtu(skb, &rt->dst, - GENEVE_IPV4_HLEN + info->options_len, false); + err = skb_tunnel_check_pmtu(skb, &rt->dst, + GENEVE_IPV4_HLEN + info->options_len, + netif_is_any_bridge_port(dev)); + if (err < 0) { + dst_release(&rt->dst); + return err; + } else if (err) { + struct ip_tunnel_info *info; + + info = skb_tunnel_info(skb); + if (info) { + info->key.u.ipv4.dst = fl4.saddr; + info->key.u.ipv4.src = fl4.daddr; + } + + if (!pskb_may_pull(skb, ETH_HLEN)) { + dst_release(&rt->dst); + return -EINVAL; + } + + skb->protocol = eth_type_trans(skb, geneve->dev); + netif_rx(skb); + dst_release(&rt->dst); + return -EMSGSIZE; + } sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->cfg.collect_md) { @@ -955,8 +978,30 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (IS_ERR(dst)) return PTR_ERR(dst); - skb_tunnel_check_pmtu(skb, dst, GENEVE_IPV6_HLEN + info->options_len, - false); + err = skb_tunnel_check_pmtu(skb, dst, + GENEVE_IPV6_HLEN + info->options_len, + netif_is_any_bridge_port(dev)); + if (err < 0) { + dst_release(dst); + return err; + } else if (err) { + struct ip_tunnel_info *info = skb_tunnel_info(skb); + + if (info) { + info->key.u.ipv6.dst = fl6.saddr; + info->key.u.ipv6.src = fl6.daddr; + } + + if (!pskb_may_pull(skb, ETH_HLEN)) { + dst_release(dst); + return -EINVAL; + } + + skb->protocol = eth_type_trans(skb, geneve->dev); + netif_rx(skb); + dst_release(dst); + return -EMSGSIZE; + } sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->cfg.collect_md) { @@ -1013,7 +1058,8 @@ static netdev_tx_t geneve_xmit(struct sk_buff *skb, struct net_device *dev) if (likely(!err)) return NETDEV_TX_OK; - dev_kfree_skb(skb); + if (err != -EMSGSIZE) + dev_kfree_skb(skb); if (err == -ELOOP) dev->stats.collisions++; |