diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/fou.c | 6 | ||||
| -rw-r--r-- | net/ipv4/ip_vti.c | 18 | ||||
| -rw-r--r-- | net/ipv4/udp_offload.c | 8 |
3 files changed, 27 insertions, 5 deletions
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c index 7ac5ec87b004..eeec7d60e5fd 100644 --- a/net/ipv4/fou.c +++ b/net/ipv4/fou.c @@ -227,8 +227,6 @@ static int fou_gro_complete(struct sock *sk, struct sk_buff *skb, int err = -ENOSYS; const struct net_offload **offloads; - udp_tunnel_gro_complete(skb, nhoff); - rcu_read_lock(); offloads = NAPI_GRO_CB(skb)->is_ipv6 ? inet6_offloads : inet_offloads; ops = rcu_dereference(offloads[proto]); @@ -237,6 +235,8 @@ static int fou_gro_complete(struct sock *sk, struct sk_buff *skb, err = ops->callbacks.gro_complete(skb, nhoff); + skb_set_inner_mac_header(skb, nhoff); + out_unlock: rcu_read_unlock(); @@ -412,6 +412,8 @@ static int gue_gro_complete(struct sock *sk, struct sk_buff *skb, int nhoff) err = ops->callbacks.gro_complete(skb, nhoff + guehlen); + skb_set_inner_mac_header(skb, nhoff + guehlen); + out_unlock: rcu_read_unlock(); return err; diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c index 5cf10b777b7e..a917903d5e97 100644 --- a/net/ipv4/ip_vti.c +++ b/net/ipv4/ip_vti.c @@ -156,6 +156,7 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev, struct dst_entry *dst = skb_dst(skb); struct net_device *tdev; /* Device to other host */ int err; + int mtu; if (!dst) { dev->stats.tx_carrier_errors++; @@ -192,6 +193,23 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev, tunnel->err_count = 0; } + mtu = dst_mtu(dst); + if (skb->len > mtu) { + skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu); + if (skb->protocol == htons(ETH_P_IP)) { + icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, + htonl(mtu)); + } else { + if (mtu < IPV6_MIN_MTU) + mtu = IPV6_MIN_MTU; + + icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); + } + + dst_release(dst); + goto tx_error; + } + skb_scrub_packet(skb, !net_eq(tunnel->net, dev_net(dev))); skb_dst_set(skb, dst); skb->dev = skb_dst(skb)->dev; diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c index 097060def7f0..6b7459c92bb2 100644 --- a/net/ipv4/udp_offload.c +++ b/net/ipv4/udp_offload.c @@ -350,6 +350,11 @@ int udp_gro_complete(struct sk_buff *skb, int nhoff, uh->len = newlen; + /* Set encapsulation before calling into inner gro_complete() functions + * to make them set up the inner offsets. + */ + skb->encapsulation = 1; + rcu_read_lock(); sk = (*lookup)(skb, uh->source, uh->dest); if (sk && udp_sk(sk)->gro_complete) @@ -360,9 +365,6 @@ int udp_gro_complete(struct sk_buff *skb, int nhoff, if (skb->remcsum_offload) skb_shinfo(skb)->gso_type |= SKB_GSO_TUNNEL_REMCSUM; - skb->encapsulation = 1; - skb_set_inner_mac_header(skb, nhoff + sizeof(struct udphdr)); - return err; } EXPORT_SYMBOL(udp_gro_complete); |