---

yaml
---
r: 352449
b: refs/heads/master
c: bc9a25d
h: refs/heads/master
i:
  352447: 89efcc5
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1690be63a27b20ae65c792729a44f5970561ffa4
+refs/heads/master: bc9a25d21ef8bad30e259af5114ccfb845c066db

trunk/net/bridge/br_fdb.c

@@ -28,7 +28,7 @@
 
 static struct kmem_cache *br_fdb_cache __read_mostly;
 static int fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
-		      const unsigned char *addr);
+		      const unsigned char *addr, u16 vid);
 static void fdb_notify(struct net_bridge *br,
 		       const struct net_bridge_fdb_entry *, int);
 
@@ -92,6 +92,7 @@ static void fdb_delete(struct net_bridge *br, struct net_bridge_fdb_entry *f)
 void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr)
 {
 	struct net_bridge *br = p->br;
+	bool no_vlan = (nbp_get_vlan_info(p) == NULL) ? true : false;
 	int i;
 
 	spin_lock_bh(&br->hash_lock);
@@ -106,38 +107,68 @@ void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr)
 			if (f->dst == p && f->is_local) {
 				/* maybe another port has same hw addr? */
 				struct net_bridge_port *op;
+				u16 vid = f->vlan_id;
 				list_for_each_entry(op, &br->port_list, list) {
 					if (op != p &&
 					    ether_addr_equal(op->dev->dev_addr,
-							     f->addr.addr)) {
+							     f->addr.addr) &&
+					    nbp_vlan_find(op, vid)) {
 						f->dst = op;
 						goto insert;
 					}
 				}
 
 				/* delete old one */
 				fdb_delete(br, f);
-				goto insert;
+insert:
+				/* insert new address,  may fail if invalid
+				 * address or dup.
+				 */
+				fdb_insert(br, p, newaddr, vid);
+
+				/* if this port has no vlan information
+				 * configured, we can safely be done at
+				 * this point.
+				 */
+				if (no_vlan)
+					goto done;
 			}
 		}
 	}
- insert:
-	/* insert new address,  may fail if invalid address or dup. */
-	fdb_insert(br, p, newaddr);
 
+done:
 	spin_unlock_bh(&br->hash_lock);
 }
 
 void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr)
 {
 	struct net_bridge_fdb_entry *f;
+	struct net_port_vlans *pv;
+	u16 vid = 0;
 
 	/* If old entry was unassociated with any port, then delete it. */
 	f = __br_fdb_get(br, br->dev->dev_addr, 0);
 	if (f && f->is_local && !f->dst)
 		fdb_delete(br, f);
 
-	fdb_insert(br, NULL, newaddr);
+	fdb_insert(br, NULL, newaddr, 0);
+
+	/* Now remove and add entries for every VLAN configured on the
+	 * bridge.  This function runs under RTNL so the bitmap will not
+	 * change from under us.
+	 */
+	pv = br_get_vlan_info(br);
+	if (!pv)
+		return;
+
+	for (vid = find_next_bit(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN, vid);
+	     vid < BR_VLAN_BITMAP_LEN;
+	     vid = find_next_bit(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN, vid+1)) {
+		f = __br_fdb_get(br, br->dev->dev_addr, vid);
+		if (f && f->is_local && !f->dst)
+			fdb_delete(br, f);
+		fdb_insert(br, NULL, newaddr, vid);
+	}
 }
 
 void br_fdb_cleanup(unsigned long _data)
@@ -379,15 +410,15 @@ static struct net_bridge_fdb_entry *fdb_create(struct hlist_head *head,
 }
 
 static int fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
-		  const unsigned char *addr)
+		  const unsigned char *addr, u16 vid)
 {
-	struct hlist_head *head = &br->hash[br_mac_hash(addr, 0)];
+	struct hlist_head *head = &br->hash[br_mac_hash(addr, vid)];
 	struct net_bridge_fdb_entry *fdb;
 
 	if (!is_valid_ether_addr(addr))
 		return -EINVAL;
 
-	fdb = fdb_find(head, addr, 0);
+	fdb = fdb_find(head, addr, vid);
 	if (fdb) {
 		/* it is okay to have multiple ports with same
 		 * address, just use the first one.
@@ -400,7 +431,7 @@ static int fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
 		fdb_delete(br, fdb);
 	}
 
-	fdb = fdb_create(head, source, addr, 0);
+	fdb = fdb_create(head, source, addr, vid);
 	if (!fdb)
 		return -ENOMEM;
 
@@ -411,12 +442,12 @@ static int fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
 
 /* Add entry for local address of interface */
 int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
-		  const unsigned char *addr)
+		  const unsigned char *addr, u16 vid)
 {
 	int ret;
 
 	spin_lock_bh(&br->hash_lock);
-	ret = fdb_insert(br, source, addr);
+	ret = fdb_insert(br, source, addr, vid);
 	spin_unlock_bh(&br->hash_lock);
 	return ret;
 }
@@ -712,8 +743,8 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 	return err;
 }
 
-static int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr,
-			      u16 vlan)
+int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr,
+		       u16 vlan)
 {
 	struct hlist_head *head = &br->hash[br_mac_hash(addr, vlan)];
 	struct net_bridge_fdb_entry *fdb;

trunk/net/bridge/br_if.c

@@ -397,7 +397,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 
 	dev_set_mtu(br->dev, br_min_mtu(br));
 
-	if (br_fdb_insert(br, p, dev->dev_addr))
+	if (br_fdb_insert(br, p, dev->dev_addr, 0))
 		netdev_err(dev, "failed insert local address bridge forwarding table\n");
 
 	kobject_uevent(&p->kobj, KOBJ_ADD);

trunk/net/bridge/br_private.h

@@ -382,11 +382,13 @@ extern int br_fdb_fillbuf(struct net_bridge *br, void *buf,
 			  unsigned long count, unsigned long off);
 extern int br_fdb_insert(struct net_bridge *br,
 			 struct net_bridge_port *source,
-			 const unsigned char *addr);
+			 const unsigned char *addr,
+			 u16 vid);
 extern void br_fdb_update(struct net_bridge *br,
 			  struct net_bridge_port *source,
 			  const unsigned char *addr,
 			  u16 vid);
+extern int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr, u16 vid);
 
 extern int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
 			 struct net_device *dev,
@@ -573,6 +575,7 @@ extern int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val);
 extern int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags);
 extern int nbp_vlan_delete(struct net_bridge_port *port, u16 vid);
 extern void nbp_vlan_flush(struct net_bridge_port *port);
+extern bool nbp_vlan_find(struct net_bridge_port *port, u16 vid);
 
 static inline struct net_port_vlans *br_get_vlan_info(
 						const struct net_bridge *br)
@@ -676,6 +679,11 @@ static inline struct net_port_vlans *nbp_get_vlan_info(
 	return NULL;
 }
 
+static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid)
+{
+	return false;
+}
+
 static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag)
 {
 	return 0;

trunk/net/bridge/br_vlan.c

@@ -25,6 +25,9 @@ static void __vlan_delete_pvid(struct net_port_vlans *v, u16 vid)
 
 static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
 {
+	struct net_bridge_port *p = NULL;
+	struct net_bridge *br;
+	struct net_device *dev;
 	int err;
 
 	if (test_bit(vid, v->vlan_bitmap)) {
@@ -33,19 +36,35 @@ static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
 		return 0;
 	}
 
-	if (v->port_idx && vid) {
-		struct net_device *dev = v->parent.port->dev;
+	if (vid) {
+		if (v->port_idx) {
+			p = v->parent.port;
+			br = p->br;
+			dev = p->dev;
+		} else {
+			br = v->parent.br;
+			dev = br->dev;
+		}
 
-		/* Add VLAN to the device filter if it is supported.
-		 * Stricly speaking, this is not necessary now, since devices
-		 * are made promiscuous by the bridge, but if that ever changes
-		 * this code will allow tagged traffic to enter the bridge.
-		 */
-		if (dev->features & NETIF_F_HW_VLAN_FILTER) {
+		if (p && (dev->features & NETIF_F_HW_VLAN_FILTER)) {
+			/* Add VLAN to the device filter if it is supported.
+			 * Stricly speaking, this is not necessary now, since
+			 * devices are made promiscuous by the bridge, but if
+			 * that ever changes this code will allow tagged
+			 * traffic to enter the bridge.
+			 */
 			err = dev->netdev_ops->ndo_vlan_rx_add_vid(dev, vid);
 			if (err)
 				return err;
 		}
+
+		err = br_fdb_insert(br, p, dev->dev_addr, vid);
+		if (err) {
+			br_err(br, "failed insert local address into bridge "
+			       "forwarding table\n");
+			goto out_filt;
+		}
+
 	}
 
 	set_bit(vid, v->vlan_bitmap);
@@ -54,6 +73,11 @@ static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
 		__vlan_add_pvid(v, vid);
 
 	return 0;
+
+out_filt:
+	if (p && (dev->features & NETIF_F_HW_VLAN_FILTER))
+		dev->netdev_ops->ndo_vlan_rx_kill_vid(dev, vid);
+	return err;
 }
 
 static int __vlan_del(struct net_port_vlans *v, u16 vid)
@@ -253,6 +277,15 @@ int br_vlan_delete(struct net_bridge *br, u16 vid)
 	if (!pv)
 		return -EINVAL;
 
+	if (vid) {
+		/* If the VID !=0 remove fdb for this vid. VID 0 is special
+		 * in that it's the default and is always there in the fdb.
+		 */
+		spin_lock_bh(&br->hash_lock);
+		fdb_delete_by_addr(br, br->dev->dev_addr, vid);
+		spin_unlock_bh(&br->hash_lock);
+	}
+
 	__vlan_del(pv, vid);
 	return 0;
 }
@@ -329,6 +362,15 @@ int nbp_vlan_delete(struct net_bridge_port *port, u16 vid)
 	if (!pv)
 		return -EINVAL;
 
+	if (vid) {
+		/* If the VID !=0 remove fdb for this vid. VID 0 is special
+		 * in that it's the default and is always there in the fdb.
+		 */
+		spin_lock_bh(&port->br->hash_lock);
+		fdb_delete_by_addr(port->br, port->dev->dev_addr, vid);
+		spin_unlock_bh(&port->br->hash_lock);
+	}
+
 	return __vlan_del(pv, vid);
 }
 
@@ -344,3 +386,22 @@ void nbp_vlan_flush(struct net_bridge_port *port)
 
 	__vlan_flush(pv);
 }
+
+bool nbp_vlan_find(struct net_bridge_port *port, u16 vid)
+{
+	struct net_port_vlans *pv;
+	bool found = false;
+
+	rcu_read_lock();
+	pv = rcu_dereference(port->vlan_info);
+
+	if (!pv)
+		goto out;
+
+	if (test_bit(vid, pv->vlan_bitmap))
+		found = true;
+
+out:
+	rcu_read_unlock();
+	return found;
+}