From 93fdd47e52f3f869a437319db9da1ea409acc07e Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 5 Oct 2014 12:00:22 +0800 Subject: bridge: Save frag_max_size between PRE_ROUTING and POST_ROUTING As we may defragment the packet in IPv4 PRE_ROUTING and refragment it after POST_ROUTING we should save the value of frag_max_size. This is still very wrong as the bridge is supposed to leave the packets intact, meaning that the right thing to do is to use the original frag_list for fragmentation. Unfortunately we don't currently guarantee that the frag_list is left untouched throughout netfilter so until this changes this is the best we can do. There is also a spot in FORWARD where it appears that we can forward a packet without going through fragmentation, mark it so that we can fix it later. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/bridge/br_private.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'net/bridge/br_private.h') diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index b6c04cbcfdc5..2398369c6dda 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 -- cgit v1.2.3