diff options
| author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2020-09-07 12:56:07 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-09-07 13:16:34 -0700 |
| commit | 8b671779b7e2db78664cf05a03ced49bcaa37874 (patch) | |
| tree | 8ebb059cb1d490b9c7c792b6d53992e5c0aa92ba /net/bridge/br_mdb.c | |
| parent | 681590bd4cdc74f17dfbdfa792f027772e149e1d (diff) | |
| download | linux-8b671779b7e2db78664cf05a03ced49bcaa37874.tar.bz2 | |
net: bridge: mcast: add support for group source list
Initial functions for group source lists which are needed for IGMPv3
and MLDv2 include/exclude lists. Both IPv4 and IPv6 sources are supported.
User-added mdb entries are created with exclude filter mode, we can
extend that later to allow user-supplied mode. When group src entries
are deleted, they're freed from a workqueue to make sure their timers
are not still running. Source entries are protected by the multicast_lock
and rcu. The number of src groups per port group is limited to 32.
v4: use the new port group del function directly
add igmpv2/mldv1 bool to denote if the entry was added in those
modes, it will later replace the old update_timer bool
v3: add IPv6 support
v2: allow src groups to be traversed under rcu
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/bridge/br_mdb.c')
| -rw-r--r-- | net/bridge/br_mdb.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index 9a975e2a2489..559bdc256a1e 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -638,7 +638,8 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port, break; } - p = br_multicast_new_port_group(port, group, *pp, state, NULL); + p = br_multicast_new_port_group(port, group, *pp, state, NULL, + MCAST_EXCLUDE); if (unlikely(!p)) return -ENOMEM; rcu_assign_pointer(*pp, p); |