diff options
| author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2019-08-17 14:22:13 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-17 12:36:57 -0700 |
| commit | 1bc844ee0faa1b92e3ede00bdd948021c78d7088 (patch) | |
| tree | fccde8ba8ab57d8c3a471f78a55f10399a62dd08 /net/bridge/br_multicast.c | |
| parent | e77b0c84e33c766728991fb637ce0ffe41be2fb1 (diff) | |
| download | linux-1bc844ee0faa1b92e3ede00bdd948021c78d7088.tar.gz linux-1bc844ee0faa1b92e3ede00bdd948021c78d7088.tar.bz2 linux-1bc844ee0faa1b92e3ede00bdd948021c78d7088.zip | |
net: bridge: mdb: allow add/delete for host-joined groups
Currently this is needed only for user-space compatibility, so similar
object adds/deletes as the dumped ones would succeed. Later it can be
used for L2 mcast MAC add/delete.
v3: fix compiler warning (DaveM)
v2: don't send a notification when used from user-space, arm the group
timer if no ports are left after host entry del
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_multicast.c')
| -rw-r--r-- | net/bridge/br_multicast.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 9b379e110129..ad12fe3fca8c 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -148,8 +148,7 @@ static void br_multicast_group_expired(struct timer_list *t) if (!netif_running(br->dev) || timer_pending(&mp->timer)) goto out; - mp->host_joined = false; - br_mdb_notify(br->dev, NULL, &mp->addr, RTM_DELMDB, 0); + br_multicast_host_leave(mp, true); if (mp->ports) goto out; @@ -512,6 +511,27 @@ static bool br_port_group_equal(struct net_bridge_port_group *p, return ether_addr_equal(src, p->eth_addr); } +void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify) +{ + if (!mp->host_joined) { + mp->host_joined = true; + if (notify) + br_mdb_notify(mp->br->dev, NULL, &mp->addr, + RTM_NEWMDB, 0); + } + mod_timer(&mp->timer, jiffies + mp->br->multicast_membership_interval); +} + +void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify) +{ + if (!mp->host_joined) + return; + + mp->host_joined = false; + if (notify) + br_mdb_notify(mp->br->dev, NULL, &mp->addr, RTM_DELMDB, 0); +} + static int br_multicast_add_group(struct net_bridge *br, struct net_bridge_port *port, struct br_ip *group, @@ -534,11 +554,7 @@ static int br_multicast_add_group(struct net_bridge *br, goto err; if (!port) { - if (!mp->host_joined) { - mp->host_joined = true; - br_mdb_notify(br->dev, NULL, &mp->addr, RTM_NEWMDB, 0); - } - mod_timer(&mp->timer, now + br->multicast_membership_interval); + br_multicast_host_join(mp, true); goto out; } |