Merge quagga mainline into the google ISIS code.

The steps were:

  $ git checkout google-is-is
  $ git merge quagga
  $ git checkout google-is-is -- isisd

  # Resolve conflicts in the following:
  lib/md5.h
  zebra/rt_netlink.c
  zebra/zebra_rib.c
  zebra/zserv.c

Note that the content in the isisd directory is left unchanged in the
merge. As a result, changes made to isisd as part of the following
commits on the quagga mainline are dropped.

  # 8ced4e82 is the merge base, e96b3121 is the current quagga master
  $ git log --oneline --reverse 8ced4e82..e96b3121 -- isisd
  5574999 isisd: fix crash on "no router isis" (BZ#536)
  8998075 isisd: raise hello rate for DIS (BZ#539)
  306ca83 isisd: include hash.h, not hash.c
  b82cdeb delete CVS keywords
  2f65867 isisd: indent longopts array
  b511468 quagga: option "-z" ("--socket <path>") added
  05e54ee build: delete .cvsignore files
  b4e45f6 fix zebra protocol after MP-BGP changes
  7fd6cd8 isisd: fix circuit state machine
  907fd95 isisd: send proper LSP after DIS election
  d034aa0 isisd: fix wrong next-hops from SPF
  c25eaff isisd: unexpected kernel routing table (BZ#544)
  e6b03b7 isisd: implement MD5 circuit authentication

1 files changed, 11 insertions, 14 deletions

diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c
index 2cde50a1..73097bf6 100644
--- a/zebra/rt_netlink.c
+++ b/zebra/rt_netlink.c
@@ -732,7 +732,7 @@ netlink_routing_table (struct sockaddr_nl *snl, struct nlmsghdr *h)
 
       if (!tb[RTA_MULTIPATH])
           rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, flags, &p, gate, src, index,
-                        table, metric, 0);
+                        table, metric, 0, SAFI_UNICAST);
       else
         {
           /* This is a multipath route */
@@ -786,7 +786,7 @@ netlink_routing_table (struct sockaddr_nl *snl, struct nlmsghdr *h)
           if (rib->nexthop_num == 0)
             XFREE (MTYPE_RIB, rib);
           else
-            rib_add_ipv4_multipath (&p, rib);
+            rib_add_ipv4_multipath (&p, rib, SAFI_UNICAST);
         }
     }
 #ifdef HAVE_IPV6
@@ -798,7 +798,7 @@ netlink_routing_table (struct sockaddr_nl *snl, struct nlmsghdr *h)
       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 */
 
@@ -833,6 +833,7 @@ netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h)
   int index;
   int table;
   int metric;
+
   void *dest;
   void *gate;
   void *src;
@@ -909,7 +910,7 @@ netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h)
   if (tb[RTA_PREFSRC])
     src = RTA_DATA (tb[RTA_PREFSRC]);
 
-  if (tb[RTA_PRIORITY])
+  if (h->nlmsg_type == RTM_NEWROUTE && tb[RTA_PRIORITY])
     metric = *(int *) RTA_DATA(tb[RTA_PRIORITY]);
 
   if (rtm->rtm_family == AF_INET)
@@ -933,7 +934,7 @@ netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h)
         {
           if (!tb[RTA_MULTIPATH])
             rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, src, index, table,
-                          metric, 0);
+                          metric, 0, SAFI_UNICAST);
           else
             {
               /* This is a multipath route */
@@ -987,11 +988,11 @@ netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h)
               if (rib->nexthop_num == 0)
                 XFREE (MTYPE_RIB, rib);
               else
-                rib_add_ipv4_multipath (&p, rib);
+                rib_add_ipv4_multipath (&p, rib, SAFI_UNICAST);
             }
         }
       else
-        rib_delete_ipv4 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table);
+        rib_delete_ipv4 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table, SAFI_UNICAST);
     }
 
 #ifdef HAVE_IPV6
@@ -1017,9 +1018,9 @@ netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h)
         }
 
       if (h->nlmsg_type == RTM_NEWROUTE)
-        rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table, 0, 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 */
 
@@ -1953,11 +1954,7 @@ extern struct thread_master *master;
 static int
 kernel_read (struct thread *thread)
 {
-  int ret;
-  int sock;
-
-  sock = THREAD_FD (thread);
-  ret = netlink_parse_info (netlink_information_fetch, &netlink);
+  netlink_parse_info (netlink_information_fetch, &netlink);
   thread_add_read (zebrad.master, kernel_read, NULL, netlink.sock);
 
   return 0;