[NET]: dev: secondary unicast address support

Add support for configuring secondary unicast addresses on network
devices. To support this devices capable of filtering multiple
unicast addresses need to change their set_multicast_list function
to configure unicast filters as well and assign it to dev->set_rx_mode
instead of dev->set_multicast_list. Other devices are put into promiscous
mode when secondary unicast addresses are present.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 2 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9e114e77e54d..2c0cc19edfb2 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -397,6 +397,9 @@ struct net_device
         unsigned char           addr_len;       /* hardware address length      */
         unsigned short          dev_id;         /* for shared network cards */
 
+        struct dev_addr_list    *uc_list;       /* Secondary unicast mac addresses */
+        int                     uc_count;       /* Number of installed ucasts   */
+        int                     uc_promisc;
         struct dev_addr_list    *mc_list;       /* Multicast mac addresses      */
         int                     mc_count;       /* Number of installed mcasts   */
         int                     promiscuity;
@@ -502,6 +505,8 @@ struct net_device
                                                 void *saddr,
                                                 unsigned len);
         int                     (*rebuild_header)(struct sk_buff *skb);
+#define HAVE_SET_RX_MODE
+        void                    (*set_rx_mode)(struct net_device *dev);
 #define HAVE_MULTICAST                   
         void                    (*set_multicast_list)(struct net_device *dev);
 #define HAVE_SET_MAC_ADDR                
@@ -1008,8 +1013,11 @@ extern struct net_device *alloc_netdev(int sizeof_priv, const char *name,
                                        void (*setup)(struct net_device *));
 extern int              register_netdev(struct net_device *dev);
 extern void             unregister_netdev(struct net_device *dev);
-/* Functions used for multicast support */
-extern void             dev_mc_upload(struct net_device *dev);
+/* Functions used for secondary unicast and multicast support */
+extern void             dev_set_rx_mode(struct net_device *dev);
+extern void             __dev_set_rx_mode(struct net_device *dev);
+extern int              dev_unicast_delete(struct net_device *dev, void *addr, int alen);
+extern int              dev_unicast_add(struct net_device *dev, void *addr, int alen);
 extern int              dev_mc_delete(struct net_device *dev, void *addr, int alen, int all);
 extern int              dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly);
 extern void             dev_mc_discard(struct net_device *dev);