diff options
| -rw-r--r-- | include/uapi/linux/if_bridge.h | 1 | ||||
| -rw-r--r-- | net/bridge/br_multicast.c | 21 |
2 files changed, 20 insertions, 2 deletions
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h index e47f3bc7f323..74ee03a47e79 100644 --- a/include/uapi/linux/if_bridge.h +++ b/include/uapi/linux/if_bridge.h @@ -182,6 +182,7 @@ enum { MDB_RTR_TYPE_DISABLED, MDB_RTR_TYPE_TEMP_QUERY, MDB_RTR_TYPE_PERM, + MDB_RTR_TYPE_TEMP }; enum { diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index f1140cf5168d..a4c15df2b792 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -759,13 +759,17 @@ static void br_multicast_router_expired(unsigned long data) struct net_bridge *br = port->br; spin_lock(&br->multicast_lock); - if (port->multicast_router != MDB_RTR_TYPE_TEMP_QUERY || + if (port->multicast_router == MDB_RTR_TYPE_DISABLED || + port->multicast_router == MDB_RTR_TYPE_PERM || timer_pending(&port->multicast_router_timer) || hlist_unhashed(&port->rlist)) goto out; hlist_del_init_rcu(&port->rlist); br_rtr_notify(br->dev, port, RTM_DELMDB); + /* Don't allow timer refresh if the router expired */ + if (port->multicast_router == MDB_RTR_TYPE_TEMP) + port->multicast_router = MDB_RTR_TYPE_TEMP_QUERY; out: spin_unlock(&br->multicast_lock); @@ -981,6 +985,9 @@ void br_multicast_disable_port(struct net_bridge_port *port) if (!hlist_unhashed(&port->rlist)) { hlist_del_init_rcu(&port->rlist); br_rtr_notify(br->dev, port, RTM_DELMDB); + /* Don't allow timer refresh if disabling */ + if (port->multicast_router == MDB_RTR_TYPE_TEMP) + port->multicast_router = MDB_RTR_TYPE_TEMP_QUERY; } del_timer(&port->multicast_router_timer); del_timer(&port->ip4_own_query.timer); @@ -1234,7 +1241,8 @@ static void br_multicast_mark_router(struct net_bridge *br, return; } - if (port->multicast_router != MDB_RTR_TYPE_TEMP_QUERY) + if (port->multicast_router == MDB_RTR_TYPE_DISABLED || + port->multicast_router == MDB_RTR_TYPE_PERM) return; br_multicast_add_router(br, port); @@ -1850,10 +1858,15 @@ static void __del_port_router(struct net_bridge_port *p) int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val) { struct net_bridge *br = p->br; + unsigned long now = jiffies; int err = -EINVAL; spin_lock(&br->multicast_lock); if (p->multicast_router == val) { + /* Refresh the temp router port timer */ + if (p->multicast_router == MDB_RTR_TYPE_TEMP) + mod_timer(&p->multicast_router_timer, + now + br->multicast_querier_interval); err = 0; goto unlock; } @@ -1872,6 +1885,10 @@ int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val) del_timer(&p->multicast_router_timer); br_multicast_add_router(br, p); break; + case MDB_RTR_TYPE_TEMP: + p->multicast_router = MDB_RTR_TYPE_TEMP; + br_multicast_mark_router(br, p); + break; default: goto unlock; } |