linux/net/bridge
Nikolay Aleksandrov 2125715635 bridge: mdb: add support for more attributes and export timer
Currently mdb entries are exported directly as a structure inside
MDBA_MDB_ENTRY_INFO attribute, we can't really extend it without
breaking user-space. In order to export new mdb fields, I've converted
the MDBA_MDB_ENTRY_INFO into a nested attribute which starts like before
with struct br_mdb_entry (without header, as it's casted directly in
iproute2) and continues with MDBA_MDB_EATTR_ attributes. This way we
keep compatibility with older users and can export new data.
I've tested this with iproute2, both with and without support for the
added attribute and it works fine.
So basically we again have MDBA_MDB_ENTRY_INFO with struct br_mdb_entry
inside but it may contain also some additional MDBA_MDB_EATTR_ attributes
such as MDBA_MDB_EATTR_TIMER which can be parsed by user-space.

So the new structure is:
[MDBA_MDB] = {
     [MDBA_MDB_ENTRY] = {
         [MDBA_MDB_ENTRY_INFO]
         [MDBA_MDB_ENTRY_INFO] { <- Nested attribute
             struct br_mdb_entry <- nla_put_nohdr()
             [MDBA_MDB_ENTRY attributes] <- normal netlink attributes
         }
     }
}

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19 15:27:36 -05:00
..
netfilter ipv4: Namespaceify ip_default_ttl sysctl knob 2016-02-16 20:42:54 -05:00
br_device.c bridge: fix lockdep addr_list_lock false positive splat 2016-01-15 15:40:45 -05:00
br_fdb.c switchdev: Pass original device to port netdev driver 2015-12-15 11:58:20 -05:00
br_forward.c bridge: set is_local and is_static before fdb entry is added to the fdb hashtable 2015-10-30 12:13:05 +09:00
br_if.c bridge: Propagate vlan add failure to user 2016-01-06 14:42:40 -05:00
br_input.c bridge: vlan: use proper rcu for the vlgrp member 2015-10-13 04:57:52 -07:00
br_ioctl.c bridge: push bridge setting ageing_time down to switchdev 2015-10-12 05:20:20 -07:00
br_mdb.c bridge: mdb: add support for more attributes and export timer 2016-02-19 15:27:36 -05:00
br_multicast.c bridge: mdb: Passing the port-group pointer to br_mdb module 2016-02-09 04:42:47 -05:00
br_netfilter_hooks.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-10-17 14:28:03 +02:00
br_netfilter_ipv6.c bridge: Pass net into br_validate_ipv4 and br_validate_ipv6 2015-09-29 20:21:32 +02:00
br_netlink.c net: bridge: log port STP state on change 2016-02-18 14:20:08 -05:00
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 net: bridge: log port STP state on change 2016-02-18 14:20:08 -05:00
br_stp_bpdu.c netfilter: Pass net into okfn 2015-09-17 17:18:37 -07:00
br_stp_if.c net: bridge: log port STP state on change 2016-02-18 14:20:08 -05:00
br_stp_timer.c net: bridge: log port STP state on change 2016-02-18 14:20:08 -05:00
br_stp.c net: bridge: log port STP state on change 2016-02-18 14:20:08 -05:00
br_sysfs_br.c bridge: use kobj_to_dev instead of to_dev 2015-12-23 22:26:48 -05:00
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: switchdev: Offload VLAN flags to hardware bridge 2016-02-18 11:18:11 -05:00
br.c switchdev: Require RTNL mutex to be held when sending FDB notifications 2016-01-28 16:21:31 -08:00
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