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Simon Wunderlich 4adf0af681 bridge: send correct MTU value in PMTU (revised) 
When bridging interfaces with different MTUs, the bridge correctly chooses
the minimum of the MTUs of the physical devices as the bridges MTU.  But
when a frame is passed which fits through the incoming, but not through
the outgoing interface, a "Fragmentation Needed" packet is generated.

However, the propagated MTU is hardcoded to 1500, which is wrong in this
situation.  The sender will repeat the packet again with the same frame
size, and the same problem will occur again.

Instead of sending 1500, the (correct) MTU value of the bridge is now sent
via PMTU.  To achieve this, the corresponding rtable structure is stored
in its net_bridge structure.

Modified to get rid of fake_net_device as well.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2008-07-30 16:27:55 -07:00
..
9p flag parameters: socket and socketpair 2008-07-24 10:47:27 -07:00
802 list_for_each_rcu must die: networking 2008-07-25 10:53:27 -07:00
8021q netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep. 2008-07-22 14:16:42 -07:00
appletalk net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
atm netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
ax25 netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
bluetooth bluetooth: remove improper bluetooth class symlinks. 2008-07-21 21:54:51 -07:00
bridge bridge: send correct MTU value in PMTU (revised) 2008-07-30 16:27:55 -07:00
can netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
core pkt_sched: Fix OOPS on ingress qdisc add. 2008-07-30 02:44:25 -07:00
dccp dccp: Add check for truncated ICMPv6 DCCP error packets 2008-07-26 11:59:11 +01:00
decnet netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
econet netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
ethernet [NET]: Return more appropriate error from eth_validate_addr(). 2008-04-13 22:45:40 -07:00
ieee80211 wext: Emit event stream entries correctly when compat. 2008-06-16 18:50:49 -07:00
ipv4 tcp: MD5: Use MIB counter instead of warning for MD5 mismatch. 2008-07-30 03:27:25 -07:00
ipv6 ipv6: Fix useless proc net sockstat6 removal 2008-07-30 03:27:52 -07:00
ipx netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
irda Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-07-20 17:43:29 -07:00
iucv Merge branch 'linus' into cpus4096-for-linus 2008-07-21 17:19:50 +02:00
key net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
lapb [LAPB] net/lapb/lapb_iface.c: use LIST_HEAD instead of LIST_HEAD_INIT 2008-01-28 14:56:52 -08:00
llc netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
mac80211 mac80211: fix mesh beaconing 2008-07-29 16:55:09 -04:00
netfilter netfilter: nf_conntrack_extend: avoid unnecessary "ct->ext" dereferences 2008-07-26 17:50:05 -07:00
netlabel netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
netlink net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
netrom netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep. 2008-07-22 14:16:42 -07:00
packet net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
rfkill rfkill: yet more minor kernel-doc fixes 2008-07-29 16:55:03 -04:00
rose netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep. 2008-07-22 14:16:42 -07:00
rxrpc net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
sched pkt_sched: Fix OOPS on ingress qdisc add. 2008-07-30 02:44:25 -07:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-07-26 20:17:56 -07:00
sunrpc Merge branch 'linus' into cpus4096 2008-07-28 21:14:43 +02:00
tipc netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
unix Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2008-07-26 20:23:44 -07:00
wanrouter net: Remove references to wan-router.txt in Kconfigs 2008-07-14 22:22:29 -07:00
wireless nl80211: fix dump callbacks 2008-07-29 16:55:08 -04:00
x25 netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
xfrm net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
Kconfig net: Make "networking" one-click deselectable. 2008-07-30 03:27:53 -07:00
Makefile vlan: uninline __vlan_hwaccel_rx 2008-07-08 03:23:36 -07:00
TUNABLE
…
compat.c flag parameters: paccept 2008-07-24 10:47:27 -07:00
nonet.c
…
socket.c SL*B: drop kmem cache argument from constructor 2008-07-26 12:00:07 -07:00
sysctl_net.c missing bits of net-namespace / sysctl 2008-07-27 09:45:34 -07:00