linux-stable/net/bridge
Vlad Yasevich 20adfa1a81 bridge: Check if vlan filtering is enabled only once.
The bridge code checks if vlan filtering is enabled on both
ingress and egress.   When the state flip happens, it
is possible for the bridge to currently be forwarding packets
and forwarding behavior becomes non-deterministic.  Bridge
may drop packets on some interfaces, but not others.

This patch solves this by caching the filtered state of the
packet into skb_cb on ingress.  The skb_cb is guaranteed to
not be over-written between the time packet entres bridge
forwarding path and the time it leaves it.  On egress, we
can then check the cached state to see if we need to
apply filtering information.

Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-13 17:21:56 -04:00
..
netfilter netfilter: don't use mutex_lock_interruptible() 2014-08-08 16:47:23 +02:00
br.c bridge: make br_device_notifier static 2014-05-22 15:33:47 -04:00
br_device.c bridge: Prepare for forwarding another bridge group addresses 2014-06-11 15:22:53 -07:00
br_fdb.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-08-05 18:46:26 -07:00
br_forward.c bridge: use is_skb_forwardable in forward path 2014-03-31 16:04:04 -04:00
br_if.c net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
br_input.c bridge: Prepare for forwarding another bridge group addresses 2014-06-11 15:22:53 -07:00
br_ioctl.c bridge: add space before '(/{', after ',', etc. 2013-12-19 19:27:26 -05:00
br_mdb.c bridge: rename struct bridge_mcast_query/querier 2014-06-10 23:50:46 -07:00
br_multicast.c list: fix order of arguments for hlist_add_after(_rcu) 2014-08-06 18:01:24 -07:00
br_netfilter.c vlan: rename __vlan_find_dev_deep() to __vlan_find_dev_deep_rcu() 2014-05-12 14:39:13 -04:00
br_netlink.c bridge: remove a useless comment 2014-08-04 12:46:51 -07:00
br_private.h bridge: Check if vlan filtering is enabled only once. 2014-09-13 17:21:56 -04:00
br_private_stp.h net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
br_stp.c bridge: Clamp forward_delay when enabling STP 2013-09-12 23:32:14 -04:00
br_stp_bpdu.c br: fix use of ->rx_handler_data in code executed on non-rx_handler path 2013-12-06 15:41:40 -05:00
br_stp_if.c bridge: Change local fdb entries whenever mac address of bridge device changes 2014-02-10 14:34:33 -08:00
br_stp_timer.c bridge: add space before '(/{', after ',', etc. 2013-12-19 19:27:26 -05:00
br_sysfs_br.c bridge: Support 802.1ad vlan filtering 2014-06-11 15:22:53 -07:00
br_sysfs_if.c bridge: Keep track of ports capable of automatic discovery. 2014-05-16 17:06:33 -04:00
br_vlan.c bridge: Check if vlan filtering is enabled only once. 2014-09-13 17:21:56 -04:00
Kconfig bridge: Add vlan filtering infrastructure 2013-02-13 19:41:46 -05:00
Makefile netfilter: bridge: fix Kconfig unmet dependencies 2014-05-26 00:42:30 -04:00