diff options
| -rw-r--r-- | net/bridge/br_netfilter.c | 11 | ||||
| -rw-r--r-- | net/bridge/br_private.h | 4 |
2 files changed, 15 insertions, 0 deletions
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index a615264..4063898 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -404,6 +404,7 @@ static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb) ETH_HLEN-ETH_ALEN); /* tell br_dev_xmit to continue with forwarding */ nf_bridge->mask |= BRNF_BRIDGED_DNAT; + /* FIXME Need to refragment */ ret = neigh->output(neigh, skb); } neigh_release(neigh); @@ -459,6 +460,10 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb) struct nf_bridge_info *nf_bridge = skb->nf_bridge; struct rtable *rt; int err; + int frag_max_size; + + frag_max_size = IPCB(skb)->frag_max_size; + BR_INPUT_SKB_CB(skb)->frag_max_size = frag_max_size; if (nf_bridge->mask & BRNF_PKT_TYPE) { skb->pkt_type = PACKET_OTHERHOST; @@ -863,13 +868,19 @@ static unsigned int br_nf_forward_arp(const struct nf_hook_ops *ops, static int br_nf_dev_queue_xmit(struct sk_buff *skb) { int ret; + int frag_max_size; + /* This is wrong! We should preserve the original fragment + * boundaries by preserving frag_list rather than refragmenting. + */ if (skb->protocol == htons(ETH_P_IP) && skb->len + nf_bridge_mtu_reduction(skb) > skb->dev->mtu && !skb_is_gso(skb)) { + frag_max_size = BR_INPUT_SKB_CB(skb)->frag_max_size; if (br_parse_ip_options(skb)) /* Drop invalid packet */ return NF_DROP; + IPCB(skb)->frag_max_size = frag_max_size; ret = ip_fragment(skb, br_dev_queue_push_xmit); } else ret = br_dev_queue_push_xmit(skb); diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index b6c04cb..2398369c 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -305,10 +305,14 @@ struct net_bridge struct br_input_skb_cb { struct net_device *brdev; + #ifdef CONFIG_BRIDGE_IGMP_SNOOPING int igmp; int mrouters_only; #endif + + u16 frag_max_size; + #ifdef CONFIG_BRIDGE_VLAN_FILTERING bool vlan_filtered; #endif |
