zebra: IPv6 MP-BGP Routes addition and deletion

This patch contains the following:
1. Addition of IPv6 SAFI_MULTICAST BGP routes into the RTM's RIB.
2. Deletion of IPv6 SAFI_MULTICAST BGP routes from the RTM's RIB.
diff --git a/zebra/connected.c b/zebra/connected.c
index 8db2d36..f699b14 100644
--- a/zebra/connected.c
+++ b/zebra/connected.c
@@ -343,7 +343,7 @@
 #endif
 
   rib_add_ipv6 (ZEBRA_ROUTE_CONNECT, 0, &p, NULL, ifp->ifindex, RT_TABLE_MAIN,
-                ifp->metric, 0);
+                ifp->metric, 0, SAFI_UNICAST);
 
   rib_update ();
 }
@@ -417,7 +417,7 @@
   if (IN6_IS_ADDR_UNSPECIFIED (&p.prefix))
     return;
 
-  rib_delete_ipv6 (ZEBRA_ROUTE_CONNECT, 0, &p, NULL, ifp->ifindex, 0);
+  rib_delete_ipv6 (ZEBRA_ROUTE_CONNECT, 0, &p, NULL, ifp->ifindex, 0, SAFI_UNICAST);
 
   rib_update ();
 }
diff --git a/zebra/rib.h b/zebra/rib.h
index 27a2de6..2872fc0 100644
--- a/zebra/rib.h
+++ b/zebra/rib.h
@@ -280,11 +280,11 @@
 extern int
 rib_add_ipv6 (int type, int flags, struct prefix_ipv6 *p,
 	      struct in6_addr *gate, unsigned int ifindex, u_int32_t vrf_id,
-	      u_int32_t metric, u_char distance);
+	      u_int32_t metric, u_char distance, safi_t safi);
 
 extern int
 rib_delete_ipv6 (int type, int flags, struct prefix_ipv6 *p,
-		 struct in6_addr *gate, unsigned int ifindex, u_int32_t vrf_id);
+		 struct in6_addr *gate, unsigned int ifindex, u_int32_t vrf_id, safi_t safi);
 
 extern struct rib *rib_lookup_ipv6 (struct in6_addr *);
 
diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c
index 8e1285d..f48df2b 100644
--- a/zebra/rt_netlink.c
+++ b/zebra/rt_netlink.c
@@ -734,7 +734,7 @@
       p.prefixlen = rtm->rtm_dst_len;
 
       rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, flags, &p, gate, index, table,
-		    metric, 0);
+		    metric, 0, SAFI_UNICAST);
     }
 #endif /* HAVE_IPV6 */
 
@@ -895,9 +895,9 @@
         }
 
       if (h->nlmsg_type == RTM_NEWROUTE)
-        rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table, metric, 0);
+        rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table, metric, 0, SAFI_UNICAST);
       else
-        rib_delete_ipv6 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table);
+        rib_delete_ipv6 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table, SAFI_UNICAST);
     }
 #endif /* HAVE_IPV6 */
 
diff --git a/zebra/zebra_rib.c b/zebra/zebra_rib.c
index a366cf1..21878aa 100644
--- a/zebra/zebra_rib.c
+++ b/zebra/zebra_rib.c
@@ -2293,7 +2293,7 @@
 int
 rib_add_ipv6 (int type, int flags, struct prefix_ipv6 *p,
 	      struct in6_addr *gate, unsigned int ifindex, u_int32_t vrf_id,
-	      u_int32_t metric, u_char distance)
+	      u_int32_t metric, u_char distance, safi_t safi)
 {
   struct rib *rib;
   struct rib *same = NULL;
@@ -2302,7 +2302,7 @@
   struct nexthop *nexthop;
 
   /* Lookup table.  */
-  table = vrf_table (AFI_IP6, SAFI_UNICAST, 0);
+  table = vrf_table (AFI_IP6, safi, 0);
   if (! table)
     return 0;
 
@@ -2387,7 +2387,7 @@
 /* XXX factor with rib_delete_ipv6 */
 int
 rib_delete_ipv6 (int type, int flags, struct prefix_ipv6 *p,
-		 struct in6_addr *gate, unsigned int ifindex, u_int32_t vrf_id)
+		 struct in6_addr *gate, unsigned int ifindex, u_int32_t vrf_id, safi_t safi)
 {
   struct route_table *table;
   struct route_node *rn;
@@ -2402,7 +2402,7 @@
   apply_mask_ipv6 (p);
 
   /* Lookup table.  */
-  table = vrf_table (AFI_IP6, SAFI_UNICAST, 0);
+  table = vrf_table (AFI_IP6, safi, 0);
   if (! table)
     return 0;
   
diff --git a/zebra/zserv.c b/zebra/zserv.c
index 310c6ce..672dee8 100644
--- a/zebra/zserv.c
+++ b/zebra/zserv.c
@@ -937,6 +937,7 @@
   api.type = stream_getc (s);
   api.flags = stream_getc (s);
   api.message = stream_getc (s);
+  api.safi = stream_getw (s);
 
   /* IPv4 prefix. */
   memset (&p, 0, sizeof (struct prefix_ipv6));
@@ -978,10 +979,10 @@
     
   if (IN6_IS_ADDR_UNSPECIFIED (&nexthop))
     rib_add_ipv6 (api.type, api.flags, &p, NULL, ifindex, zebrad.rtm_table_default, api.metric,
-		  api.distance);
+		  api.distance, api.safi);
   else
     rib_add_ipv6 (api.type, api.flags, &p, &nexthop, ifindex, zebrad.rtm_table_default, api.metric,
-		  api.distance);
+		  api.distance, api.safi);
   return 0;
 }
 
@@ -1004,6 +1005,7 @@
   api.type = stream_getc (s);
   api.flags = stream_getc (s);
   api.message = stream_getc (s);
+  api.safi = stream_getw (s);
 
   /* IPv4 prefix. */
   memset (&p, 0, sizeof (struct prefix_ipv6));
@@ -1043,9 +1045,9 @@
     api.metric = 0;
     
   if (IN6_IS_ADDR_UNSPECIFIED (&nexthop))
-    rib_delete_ipv6 (api.type, api.flags, &p, NULL, ifindex, client->rtm_table);
+    rib_delete_ipv6 (api.type, api.flags, &p, NULL, ifindex, client->rtm_table, api.safi);
   else
-    rib_delete_ipv6 (api.type, api.flags, &p, &nexthop, ifindex, client->rtm_table);
+    rib_delete_ipv6 (api.type, api.flags, &p, &nexthop, ifindex, client->rtm_table, api.safi);
   return 0;
 }