diff options
| -rw-r--r-- | net/bridge/br_fdb.c | 10 | ||||
| -rw-r--r-- | net/bridge/br_private.h | 6 | ||||
| -rw-r--r-- | net/bridge/br_vlan.c | 19 |
3 files changed, 34 insertions, 1 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 96ab1d1748d0..b4005f5b28f4 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -114,12 +114,20 @@ void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr) if (op != p && ether_addr_equal(op->dev->dev_addr, f->addr.addr) && - nbp_vlan_find(op, vid)) { + (!vid || nbp_vlan_find(op, vid))) { f->dst = op; goto skip_delete; } } + /* maybe bridge device has same hw addr? */ + if (ether_addr_equal(br->dev->dev_addr, + f->addr.addr) && + (!vid || br_vlan_find(br, vid))) { + f->dst = NULL; + goto skip_delete; + } + /* delete old one */ fdb_delete(br, f); skip_delete: diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 939a59e15036..f91e1d9c8e92 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -585,6 +585,7 @@ struct sk_buff *br_handle_vlan(struct net_bridge *br, int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); int br_vlan_delete(struct net_bridge *br, u16 vid); void br_vlan_flush(struct net_bridge *br); +bool br_vlan_find(struct net_bridge *br, u16 vid); int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); @@ -666,6 +667,11 @@ static inline void br_vlan_flush(struct net_bridge *br) { } +static inline bool br_vlan_find(struct net_bridge *br, u16 vid) +{ + return false; +} + static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) { return -EOPNOTSUPP; diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index 4ca4d0a0151c..233ec1c6e9db 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -295,6 +295,25 @@ void br_vlan_flush(struct net_bridge *br) __vlan_flush(pv); } +bool br_vlan_find(struct net_bridge *br, u16 vid) +{ + struct net_port_vlans *pv; + bool found = false; + + rcu_read_lock(); + pv = rcu_dereference(br->vlan_info); + + if (!pv) + goto out; + + if (test_bit(vid, pv->vlan_bitmap)) + found = true; + +out: + rcu_read_unlock(); + return found; +} + int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val) { if (!rtnl_trylock()) |