*: Port Christians tweaks for 32-bit route tags

Port over Christian's tweaks from his port of my commit widening the
route-tag field width to 32-bit.  Commit dc9ffce8786844
 "*: Consistently support 32-bit route tags".

with "changes which make this actually useful for all the daemons".

This is missing the zebra route-map changes.
diff --git a/ospfd/ospf_asbr.h b/ospfd/ospf_asbr.h
index bc41a14..0fc3302 100644
--- a/ospfd/ospf_asbr.h
+++ b/ospfd/ospf_asbr.h
@@ -44,7 +44,7 @@
   /* Nexthop address. */
   struct in_addr nexthop;
 
-  /* Additional Route tag. */
+  /* Additional Route tag: this is the wire type */
   u_int32_t tag;
 
   struct route_map_set_values route_map_set;
diff --git a/ospfd/ospf_dump.c b/ospfd/ospf_dump.c
index 66cc294..be9fa2a 100644
--- a/ospfd/ospf_dump.c
+++ b/ospfd/ospf_dump.c
@@ -493,7 +493,7 @@
 		 IS_EXTERNAL_METRIC (al->e[i].tos) ? "E" : "-",
 		 al->e[i].tos & 0x7f, GET_METRIC (al->e[i].metric));
       zlog_debug ("    Forwarding address %s", inet_ntoa (al->e[i].fwd_addr));
-      zlog_debug ("    External Route Tag %d", al->e[i].route_tag);
+      zlog_debug ("    External Route Tag %u", al->e[i].route_tag);
     }
 }
 
diff --git a/ospfd/ospf_routemap.c b/ospfd/ospf_routemap.c
index dc41812..31d7ce2 100644
--- a/ospfd/ospf_routemap.c
+++ b/ospfd/ospf_routemap.c
@@ -436,45 +436,13 @@
   return RMAP_NOMATCH;
 }
 
-/*  Route map `match tag' match statement. `arg' is TAG value */
-static void *
-route_match_tag_compile (const char *arg)
-{
-  route_tag_t *tag;
-  route_tag_t tmp;
-
-  /* tag value shoud be integer. */
-  if (! all_digit (arg))
-    return NULL;
-
-  tmp = atoi(arg);
-  if (tmp < 1)
-    return NULL;
-
-  tag = XMALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (u_short));
-
-  if (!tag)
-    return tag;
-
-  *tag = tmp;
-
-  return tag;
-}
-
-/* Free route map's compiled 'match tag' value. */
-static void
-route_match_tag_free (void *rule)
-{
-  XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
-}
-
 /* Route map commands for tag matching. */
-struct route_map_rule_cmd route_match_tag_cmd =
+static struct route_map_rule_cmd route_match_tag_cmd =
 {
   "tag",
   route_match_tag,
-  route_match_tag_compile,
-  route_match_tag_free,
+  route_map_rule_tag_compile,
+  route_map_rule_tag_free,
 };
 
 
@@ -626,46 +594,13 @@
   return RMAP_OKAY;
 }
 
-/* Route map `tag' compile function.  Given string is converted to u_short. */
-static void *
-route_set_tag_compile (const char *arg)
-{
-  route_tag_t *tag;
-  route_tag_t tmp;
-
-  /* tag value shoud be integer. */
-  if (! all_digit (arg))
-    return NULL;
-
-  tmp = atoi(arg);
-
-  if (tmp < 1)
-      return NULL;
-
-  tag = XMALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (u_short));
-
-  if (!tag)
-    return tag;
-
-  *tag = tmp;
-
-  return tag;
-}
-
-/* Free route map's tag value. */
-static void
-route_set_tag_free (void *rule)
-{
-  XFREE (MTYPE_ROUTE_MAP_COMPILED, rule);
-}
-
 /* Route map commands for tag set. */
-struct route_map_rule_cmd route_set_tag_cmd =
+static struct route_map_rule_cmd route_set_tag_cmd =
 {
   "tag",
   route_set_tag,
-  route_set_tag_compile,
-  route_set_tag_free,
+  route_map_rule_tag_compile,
+  route_map_rule_tag_free,
 };
 
 DEFUN (match_ip_nexthop,
@@ -855,7 +790,7 @@
 
 DEFUN (match_tag,
        match_tag_cmd,
-       "match tag <1-65535>",
+       "match tag <1-4294967295>",
        MATCH_STR
        "Match tag of route\n"
        "Tag value\n")
@@ -878,7 +813,7 @@
 
 ALIAS (no_match_tag,
        no_match_tag_val_cmd,
-       "no match tag <1-65535>",
+       "no match tag <1-4294967295>",
        NO_STR
        MATCH_STR
        "Match tag of route\n"
@@ -955,7 +890,7 @@
 
 DEFUN (set_tag,
        set_tag_cmd,
-       "set tag <1-65535>",
+       "set tag <1-4294967295>",
        SET_STR
        "Tag value for routing protocol\n"
        "Tag value\n")
@@ -978,7 +913,7 @@
 
 ALIAS (no_set_tag,
        no_set_tag_val_cmd,
-       "no set tag <1-65535>",
+       "no set tag <1-4294967295>",
        NO_STR
        SET_STR
        "Tag value for routing protocol\n"
diff --git a/ospfd/ospf_vty.c b/ospfd/ospf_vty.c
index 1772f24..f31355e 100644
--- a/ospfd/ospf_vty.c
+++ b/ospfd/ospf_vty.c
@@ -3872,8 +3872,8 @@
   zlog_debug( "        Forward Address: %s%s",
 	     inet_ntoa (al->e[0].fwd_addr), "\n");
 
-  zlog_debug( "        External Route Tag: %u%s%s",
-	     ntohl (al->e[0].route_tag), "\n", "\n");
+  zlog_debug( "        External Route Tag: %lu%s%s",
+	     (u_long)ntohl (al->e[0].route_tag), "\n", "\n");
 
   return 0;
 }
@@ -3900,8 +3900,8 @@
       vty_out (vty, "        NSSA: Forward Address: %s%s",
 	       inet_ntoa (al->e[0].fwd_addr), VTY_NEWLINE);
 
-      vty_out (vty, "        External Route Tag: %u%s%s",
-	       ntohl (al->e[0].route_tag), VTY_NEWLINE, VTY_NEWLINE);
+      vty_out (vty, "        External Route Tag: %lu%s%s",
+	       (u_long)ntohl (al->e[0].route_tag), VTY_NEWLINE, VTY_NEWLINE);
     }
 
   return 0;