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linux-next/net/bridge
Nikolay Aleksandrov 7ae90a4f96 bridge: mdb: fix delmdb state in the notification
Since mdb states were introduced when deleting an entry the state was
left as it was set in the delete request from the user which leads to
the following output when doing a monitor (for example):
$ bridge mdb add dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent
$ bridge mdb del dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 temp
^^^
Note the "temp" state in the delete notification which is wrong since
the entry was permanent, the state in a delete is always reported as
"temp" regardless of the real state of the entry.

After this patch:
$ bridge mdb add dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent
$ bridge mdb del dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent

There's one important note to make here that the state is actually not
matched when doing a delete, so one can delete a permanent entry by
stating "temp" in the end of the command, I've chosen this fix in order
not to break user-space tools which rely on this (incorrect) behaviour.

So to give an example after this patch and using the wrong state:
$ bridge mdb add dev br0 port eth3 grp 239.0.0.1 permanent
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent
$ bridge mdb del dev br0 port eth3 grp 239.0.0.1 temp
(monitor) dev br0 port eth3 grp 239.0.0.1 permanent

Note the state of the entry that got deleted is correct in the
notification.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Fixes: ccb1c31a7a ("bridge: add flags to distinguish permanent mdb entires")
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 15:02:30 -07:00
..
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
br_device.c netfilter: bridge: use rcu hook to resolve br_netfilter dependency 2015-03-10 15:03:02 +01:00
br_fdb.c bridge: vlan: flush the dynamically learned entries on port vlan delete 2015-06-24 05:40:55 -07:00
br_forward.c bridge: Fix network header pointer for vlan tagged packets 2015-07-29 12:20:16 -07:00
br_if.c bridge: vlan: flush the dynamically learned entries on port vlan delete 2015-06-24 05:40:55 -07:00
br_input.c netfilter: Pass socket pointer down through okfn(). 2015-04-07 15:25:55 -04:00
br_ioctl.c bridge: fix br_stp_set_bridge_priority race conditions 2015-06-18 03:29:47 -07:00
br_mdb.c bridge: mdb: fix delmdb state in the notification 2015-07-29 15:02:30 -07:00
br_multicast.c bridge: mcast: give fast leave precedence over multicast router and querier 2015-07-29 14:57:05 -07:00
br_netfilter_hooks.c netfilter: bridge: don't leak skb in error paths 2015-07-02 17:59:26 +02:00
br_netfilter_ipv6.c netfilter: bridge: Use __in6_dev_get rather than in6_dev_get in br_validate_ipv6 2015-07-08 11:02:16 +02:00
br_netlink.c bridge: netlink: fix slave_changelink/br_setport race conditions 2015-07-26 16:27:22 -07:00
br_nf_core.c net: Remove protocol from struct dst_ops 2015-03-09 16:06:10 -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_private.h bridge: vlan: flush the dynamically learned entries on port vlan delete 2015-06-24 05:40:55 -07:00
br_stp_bpdu.c netfilter: Pass socket pointer down through okfn(). 2015-04-07 15:25:55 -04:00
br_stp_if.c bridge: stp: when using userspace stp stop kernel hello and hold timers 2015-07-28 23:33:20 -07:00
br_stp_timer.c bridge: stp: when using userspace stp stop kernel hello and hold timers 2015-07-28 23:33:20 -07:00
br_stp.c bridge: stp: when using userspace stp stop kernel hello and hold timers 2015-07-28 23:33:20 -07:00
br_sysfs_br.c bridge: Add a default_pvid sysfs attribute 2014-10-05 21:21:36 -04:00
br_sysfs_if.c bridge: vlan: flush the dynamically learned entries on port vlan delete 2015-06-24 05:40:55 -07:00
br_vlan.c bridge: vlan: flush the dynamically learned entries on port vlan delete 2015-06-24 05:40:55 -07:00
br.c switchdev: s/netdev_switch_/switchdev_/ and s/NETDEV_SWITCH_/SWITCHDEV_/ 2015-05-12 18:43:52 -04:00
Kconfig bridge: Add vlan filtering infrastructure 2013-02-13 19:41:46 -05:00
Makefile netfilter: bridge: split ipv6 code into separated file 2015-06-18 21:14:21 +02:00