libs, daemons: use const in route-map apply

Use 'const prefix *' in route-map apply apis; led to some
corresponding changes in several daemons.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

16 files changed, 162 insertions, 131 deletions

diff --git a/bgpd/bgp_evpn_private.h b/bgpd/bgp_evpn_private.h
index bf6a24dea6..e4e0511147 100644
--- a/bgpd/bgp_evpn_private.h
+++ b/bgpd/bgp_evpn_private.h
@@ -328,7 +328,7 @@ static inline void ip_prefix_from_type5_prefix(struct prefix_evpn *evp,
 	}
 }
 
-static inline int is_evpn_prefix_default(struct prefix *evp)
+static inline int is_evpn_prefix_default(const struct prefix *evp)
 {
 	if (evp->family != AF_EVPN)
 		return 0;
diff --git a/bgpd/bgp_routemap.c b/bgpd/bgp_routemap.c
index f9f5142cd0..903018b2a2 100644
--- a/bgpd/bgp_routemap.c
+++ b/bgpd/bgp_routemap.c
@@ -234,7 +234,8 @@ struct bgp_match_peer_compiled {
 /* Compares the peer specified in the 'match peer' clause with the peer
     received in bgp_info->peer. If it is the same, or if the peer structure
     received is a peer_group containing it, returns RMAP_MATCH. */
-static route_map_result_t route_match_peer(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_peer(void *rule,
+					   const struct prefix *prefix,
 					   route_map_object_t type,
 					   void *object)
 {
@@ -334,7 +335,7 @@ struct route_map_rule_cmd route_match_peer_cmd = {"peer", route_match_peer,
 /* Match function should return 1 if match is success else return
    zero. */
 static route_map_result_t route_match_ip_address(void *rule,
-						 struct prefix *prefix,
+						 const struct prefix *prefix,
 						 route_map_object_t type,
 						 void *object)
 {
@@ -374,7 +375,7 @@ struct route_map_rule_cmd route_match_ip_address_cmd = {
 
 /* Match function return 1 if match is success else return zero. */
 static route_map_result_t route_match_ip_next_hop(void *rule,
-						  struct prefix *prefix,
+						  const struct prefix *prefix,
 						  route_map_object_t type,
 						  void *object)
 {
@@ -421,7 +422,7 @@ struct route_map_rule_cmd route_match_ip_next_hop_cmd = {
 
 /* Match function return 1 if match is success else return zero. */
 static route_map_result_t route_match_ip_route_source(void *rule,
-						      struct prefix *prefix,
+						      const struct prefix *pfx,
 						      route_map_object_t type,
 						      void *object)
 {
@@ -430,7 +431,7 @@ static route_map_result_t route_match_ip_route_source(void *rule,
 	struct peer *peer;
 	struct prefix_ipv4 p;
 
-	if (type == RMAP_BGP && prefix->family == AF_INET) {
+	if (type == RMAP_BGP && pfx->family == AF_INET) {
 		bgp_info = object;
 		peer = bgp_info->peer;
 
@@ -473,7 +474,7 @@ struct route_map_rule_cmd route_match_ip_route_source_cmd = {
 /* `match ip address prefix-list PREFIX_LIST' */
 
 static route_map_result_t
-route_match_ip_address_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_address_prefix_list(void *rule, const struct prefix *prefix,
 				   route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -508,7 +509,7 @@ struct route_map_rule_cmd route_match_ip_address_prefix_list_cmd = {
 /* `match ip next-hop prefix-list PREFIX_LIST' */
 
 static route_map_result_t
-route_match_ip_next_hop_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_next_hop_prefix_list(void *rule, const struct prefix *prefix,
 				    route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -550,7 +551,8 @@ struct route_map_rule_cmd route_match_ip_next_hop_prefix_list_cmd = {
 /* `match ip route-source prefix-list PREFIX_LIST' */
 
 static route_map_result_t
-route_match_ip_route_source_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_route_source_prefix_list(void *rule,
+					const struct prefix *prefix,
 					route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -599,7 +601,7 @@ struct route_map_rule_cmd route_match_ip_route_source_prefix_list_cmd = {
 
 /* Match function should return 1 if match is success else 0 */
 static route_map_result_t route_match_evpn_default_route(void *rule,
-							 struct prefix *p,
+							 const struct prefix *p,
 							 route_map_object_t
 							 type, void *object)
 {
@@ -618,7 +620,7 @@ struct route_map_rule_cmd route_match_evpn_default_route_cmd = {
 /* Match function should return 1 if match is success else return
    zero. */
 static route_map_result_t route_match_mac_address(void *rule,
-						  struct prefix *prefix,
+						  const struct prefix *prefix,
 						  route_map_object_t type,
 						  void *object)
 {
@@ -667,7 +669,8 @@ struct route_map_rule_cmd route_match_mac_address_cmd = {
 
 /* Match function should return 1 if match is success else return
    zero. */
-static route_map_result_t route_match_vni(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_vni(void *rule,
+					  const struct prefix *prefix,
 					  route_map_object_t type, void *object)
 {
 	vni_t vni = 0;
@@ -722,7 +725,7 @@ struct route_map_rule_cmd route_match_evpn_vni_cmd = {
 /* Match function should return 1 if match is success else return
    zero. */
 static route_map_result_t route_match_evpn_route_type(void *rule,
-						      struct prefix *prefix,
+						      const struct prefix *pfx,
 						      route_map_object_t type,
 						      void *object)
 {
@@ -731,7 +734,7 @@ static route_map_result_t route_match_evpn_route_type(void *rule,
 	if (type == RMAP_BGP) {
 		route_type = *((uint8_t *)rule);
 
-		if (route_type == prefix->u.prefix_evpn.route_type)
+		if (route_type == pfx->u.prefix_evpn.route_type)
 			return RMAP_MATCH;
 	}
 
@@ -770,7 +773,7 @@ struct route_map_rule_cmd route_match_evpn_route_type_cmd = {
 
 /* Match function return 1 if match is success else return zero. */
 static route_map_result_t route_match_local_pref(void *rule,
-						 struct prefix *prefix,
+						 const struct prefix *prefix,
 						 route_map_object_t type,
 						 void *object)
 {
@@ -829,7 +832,8 @@ struct route_map_rule_cmd route_match_local_pref_cmd = {
 /* `match metric METRIC' */
 
 /* Match function return 1 if match is success else return zero. */
-static route_map_result_t route_match_metric(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_metric(void *rule,
+					     const struct prefix *prefix,
 					     route_map_object_t type,
 					     void *object)
 {
@@ -852,7 +856,8 @@ struct route_map_rule_cmd route_match_metric_cmd = {
 /* `match as-path ASPATH' */
 
 /* Match function for as-path match.  I assume given object is */
-static route_map_result_t route_match_aspath(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_aspath(void *rule,
+					     const struct prefix *prefix,
 					     route_map_object_t type,
 					     void *object)
 {
@@ -901,7 +906,7 @@ struct rmap_community {
 
 /* Match function for community match. */
 static route_map_result_t route_match_community(void *rule,
-						struct prefix *prefix,
+						const struct prefix *prefix,
 						route_map_object_t type,
 						void *object)
 {
@@ -969,7 +974,7 @@ struct route_map_rule_cmd route_match_community_cmd = {
 
 /* Match function for lcommunity match. */
 static route_map_result_t route_match_lcommunity(void *rule,
-						 struct prefix *prefix,
+						 const struct prefix *prefix,
 						 route_map_object_t type,
 						 void *object)
 {
@@ -1030,7 +1035,7 @@ struct route_map_rule_cmd route_match_lcommunity_cmd = {
 
 /* Match function for extcommunity match. */
 static route_map_result_t route_match_ecommunity(void *rule,
-						 struct prefix *prefix,
+						 const struct prefix *prefix,
 						 route_map_object_t type,
 						 void *object)
 {
@@ -1072,7 +1077,8 @@ struct route_map_rule_cmd route_match_ecommunity_cmd = {
    and `address-family vpnv4'.  */
 
 /* `match origin' */
-static route_map_result_t route_match_origin(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_origin(void *rule,
+					     const struct prefix *prefix,
 					     route_map_object_t type,
 					     void *object)
 {
@@ -1120,7 +1126,7 @@ struct route_map_rule_cmd route_match_origin_cmd = {
 /* match probability  { */
 
 static route_map_result_t route_match_probability(void *rule,
-						  struct prefix *prefix,
+						  const struct prefix *prefix,
 						  route_map_object_t type,
 						  void *object)
 {
@@ -1175,7 +1181,7 @@ struct route_map_rule_cmd route_match_probability_cmd = {
 /* Match function should return 1 if match is success else return
    zero. */
 static route_map_result_t route_match_interface(void *rule,
-						struct prefix *prefix,
+						const struct prefix *prefix,
 						route_map_object_t type,
 						void *object)
 {
@@ -1221,7 +1227,8 @@ struct route_map_rule_cmd route_match_interface_cmd = {
 /* `set ip next-hop IP_ADDRESS' */
 
 /* Match function return 1 if match is success else return zero. */
-static route_map_result_t route_match_tag(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_tag(void *rule,
+					  const struct prefix *prefix,
 					  route_map_object_t type, void *object)
 {
 	route_tag_t *tag;
@@ -1254,7 +1261,7 @@ struct rmap_ip_nexthop_set {
 };
 
 static route_map_result_t route_set_ip_nexthop(void *rule,
-					       struct prefix *prefix,
+					       const struct prefix *prefix,
 					       route_map_object_t type,
 					       void *object)
 {
@@ -1362,7 +1369,7 @@ struct route_map_rule_cmd route_set_ip_nexthop_cmd = {
 
 /* Set local preference. */
 static route_map_result_t route_set_local_pref(void *rule,
-					       struct prefix *prefix,
+					       const struct prefix *prefix,
 					       route_map_object_t type,
 					       void *object)
 {
@@ -1396,7 +1403,8 @@ struct route_map_rule_cmd route_set_local_pref_cmd = {
 /* `set weight WEIGHT' */
 
 /* Set weight. */
-static route_map_result_t route_set_weight(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_weight(void *rule,
+					   const struct prefix *prefix,
 					   route_map_object_t type,
 					   void *object)
 {
@@ -1424,7 +1432,8 @@ struct route_map_rule_cmd route_set_weight_cmd = {
 /* `set metric METRIC' */
 
 /* Set metric to attribute. */
-static route_map_result_t route_set_metric(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_metric(void *rule,
+					   const struct prefix *prefix,
 					   route_map_object_t type,
 					   void *object)
 {
@@ -1457,7 +1466,7 @@ struct route_map_rule_cmd route_set_metric_cmd = {
 
 /* For AS path prepend mechanism. */
 static route_map_result_t route_set_aspath_prepend(void *rule,
-						   struct prefix *prefix,
+						   const struct prefix *prefix,
 						   route_map_object_t type,
 						   void *object)
 {
@@ -1520,7 +1529,7 @@ struct route_map_rule_cmd route_set_aspath_prepend_cmd = {
  * Make a deep copy of existing AS_PATH, but for the first ASn only.
  */
 static route_map_result_t route_set_aspath_exclude(void *rule,
-						   struct prefix *dummy,
+						   const struct prefix *dummy,
 						   route_map_object_t type,
 						   void *object)
 {
@@ -1554,7 +1563,8 @@ struct rmap_com_set {
 };
 
 /* For community set mechanism. */
-static route_map_result_t route_set_community(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_community(void *rule,
+					      const struct prefix *prefix,
 					      route_map_object_t type,
 					      void *object)
 {
@@ -1670,7 +1680,7 @@ struct rmap_lcom_set {
 
 /* For lcommunity set mechanism. */
 static route_map_result_t route_set_lcommunity(void *rule,
-					       struct prefix *prefix,
+					       const struct prefix *prefix,
 					       route_map_object_t type,
 					       void *object)
 {
@@ -1783,7 +1793,7 @@ struct route_map_rule_cmd route_set_lcommunity_cmd = {
 
 /* For large community set mechanism. */
 static route_map_result_t route_set_lcommunity_delete(void *rule,
-						      struct prefix *prefix,
+						      const struct prefix *pfx,
 						      route_map_object_t type,
 						      void *object)
 {
@@ -1866,10 +1876,11 @@ struct route_map_rule_cmd route_set_lcommunity_delete_cmd = {
 /* `set comm-list (<1-99>|<100-500>|WORD) delete' */
 
 /* For community set mechanism. */
-static route_map_result_t route_set_community_delete(void *rule,
-						     struct prefix *prefix,
-						     route_map_object_t type,
-						     void *object)
+static route_map_result_t route_set_community_delete(
+	void *rule,
+	const struct prefix *prefix,
+	route_map_object_t type,
+	void *object)
 {
 	struct community_list *list;
 	struct community *merge;
@@ -1950,7 +1961,7 @@ struct route_map_rule_cmd route_set_community_delete_cmd = {
 
 /* For community set mechanism.  Used by _rt and _soo. */
 static route_map_result_t route_set_ecommunity(void *rule,
-					       struct prefix *prefix,
+					       const struct prefix *prefix,
 					       route_map_object_t type,
 					       void *object)
 {
@@ -2037,7 +2048,8 @@ struct route_map_rule_cmd route_set_ecommunity_soo_cmd = {
 /* `set origin ORIGIN' */
 
 /* For origin set. */
-static route_map_result_t route_set_origin(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_origin(void *rule,
+					   const struct prefix *prefix,
 					   route_map_object_t type,
 					   void *object)
 {
@@ -2087,7 +2099,7 @@ struct route_map_rule_cmd route_set_origin_cmd = {
 
 /* For atomic aggregate set. */
 static route_map_result_t route_set_atomic_aggregate(void *rule,
-						     struct prefix *prefix,
+						     const struct prefix *pfx,
 						     route_map_object_t type,
 						     void *object)
 {
@@ -2127,7 +2139,7 @@ struct aggregator {
 };
 
 static route_map_result_t route_set_aggregator_as(void *rule,
-						  struct prefix *prefix,
+						  const struct prefix *prefix,
 						  route_map_object_t type,
 						  void *object)
 {
@@ -2180,7 +2192,8 @@ struct route_map_rule_cmd route_set_aggregator_as_cmd = {
 };
 
 /* Set tag to object. object must be pointer to struct bgp_info */
-static route_map_result_t route_set_tag(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_tag(void *rule,
+					const struct prefix *prefix,
 					route_map_object_t type, void *object)
 {
 	route_tag_t *tag;
@@ -2205,7 +2218,7 @@ static struct route_map_rule_cmd route_set_tag_cmd = {
 
 /* Set label-index to object. object must be pointer to struct bgp_info */
 static route_map_result_t route_set_label_index(void *rule,
-						struct prefix *prefix,
+						const struct prefix *prefix,
 						route_map_object_t type,
 						void *object)
 {
@@ -2239,7 +2252,7 @@ static struct route_map_rule_cmd route_set_label_index_cmd = {
 /* `match ipv6 address IP_ACCESS_LIST' */
 
 static route_map_result_t route_match_ipv6_address(void *rule,
-						   struct prefix *prefix,
+						   const struct prefix *prefix,
 						   route_map_object_t type,
 						   void *object)
 {
@@ -2275,7 +2288,7 @@ struct route_map_rule_cmd route_match_ipv6_address_cmd = {
 /* `match ipv6 next-hop IP_ADDRESS' */
 
 static route_map_result_t route_match_ipv6_next_hop(void *rule,
-						    struct prefix *prefix,
+						    const struct prefix *prefix,
 						    route_map_object_t type,
 						    void *object)
 {
@@ -2327,7 +2340,7 @@ struct route_map_rule_cmd route_match_ipv6_next_hop_cmd = {
 /* `match ipv6 address prefix-list PREFIX_LIST' */
 
 static route_map_result_t
-route_match_ipv6_address_prefix_list(void *rule, struct prefix *prefix,
+route_match_ipv6_address_prefix_list(void *rule, const struct prefix *prefix,
 				     route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -2363,7 +2376,7 @@ struct route_map_rule_cmd route_match_ipv6_address_prefix_list_cmd = {
 
 /* Set nexthop to object.  ojbect must be pointer to struct attr. */
 static route_map_result_t route_set_ipv6_nexthop_global(void *rule,
-							struct prefix *prefix,
+							const struct prefix *p,
 							route_map_object_t type,
 							void *object)
 {
@@ -2423,7 +2436,7 @@ struct route_map_rule_cmd route_set_ipv6_nexthop_global_cmd = {
 
 /* Set next-hop preference value. */
 static route_map_result_t
-route_set_ipv6_nexthop_prefer_global(void *rule, struct prefix *prefix,
+route_set_ipv6_nexthop_prefer_global(void *rule, const struct prefix *prefix,
 				     route_map_object_t type, void *object)
 {
 	struct bgp_info *bgp_info;
@@ -2477,7 +2490,7 @@ struct route_map_rule_cmd route_set_ipv6_nexthop_prefer_global_cmd = {
 
 /* Set nexthop to object.  ojbect must be pointer to struct attr. */
 static route_map_result_t route_set_ipv6_nexthop_local(void *rule,
-						       struct prefix *prefix,
+						       const struct prefix *p,
 						       route_map_object_t type,
 						       void *object)
 {
@@ -2540,7 +2553,7 @@ struct route_map_rule_cmd route_set_ipv6_nexthop_local_cmd = {
 
 /* Set nexthop to object.  ojbect must be pointer to struct attr. */
 static route_map_result_t route_set_ipv6_nexthop_peer(void *rule,
-						      struct prefix *prefix,
+						      const struct prefix *pfx,
 						      route_map_object_t type,
 						      void *object)
 {
@@ -2619,7 +2632,7 @@ struct route_map_rule_cmd route_set_ipv6_nexthop_peer_cmd = {
 /* `set ipv4 vpn next-hop A.B.C.D' */
 
 static route_map_result_t route_set_vpnv4_nexthop(void *rule,
-						  struct prefix *prefix,
+						  const struct prefix *prefix,
 						  route_map_object_t type,
 						  void *object)
 {
@@ -2659,7 +2672,7 @@ static void *route_set_vpnv4_nexthop_compile(const char *arg)
 /* `set ipv6 vpn next-hop A.B.C.D' */
 
 static route_map_result_t route_set_vpnv6_nexthop(void *rule,
-						  struct prefix *prefix,
+						  const struct prefix *prefix,
 						  route_map_object_t type,
 						  void *object)
 {
@@ -2715,7 +2728,7 @@ struct route_map_rule_cmd route_set_vpnv6_nexthop_cmd = {
 
 /* For origin set. */
 static route_map_result_t route_set_originator_id(void *rule,
-						  struct prefix *prefix,
+						  const struct prefix *prefix,
 						  route_map_object_t type,
 						  void *object)
 {
diff --git a/isisd/isis_routemap.c b/isisd/isis_routemap.c
index d92207d57c..3c2cf7b3fc 100644
--- a/isisd/isis_routemap.c
+++ b/isisd/isis_routemap.c
@@ -50,7 +50,7 @@
 #include "isis_routemap.h"
 
 static route_map_result_t route_match_ip_address(void *rule,
-						 struct prefix *prefix,
+						 const struct prefix *prefix,
 						 route_map_object_t type,
 						 void *object)
 {
@@ -83,7 +83,7 @@ static struct route_map_rule_cmd route_match_ip_address_cmd = {
 /* ------------------------------------------------------------*/
 
 static route_map_result_t
-route_match_ip_address_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_address_prefix_list(void *rule, const struct prefix *prefix,
 				   route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -116,7 +116,7 @@ struct route_map_rule_cmd route_match_ip_address_prefix_list_cmd = {
 /* ------------------------------------------------------------*/
 
 static route_map_result_t route_match_ipv6_address(void *rule,
-						   struct prefix *prefix,
+						   const struct prefix *prefix,
 						   route_map_object_t type,
 						   void *object)
 {
@@ -149,7 +149,7 @@ static struct route_map_rule_cmd route_match_ipv6_address_cmd = {
 /* ------------------------------------------------------------*/
 
 static route_map_result_t
-route_match_ipv6_address_prefix_list(void *rule, struct prefix *prefix,
+route_match_ipv6_address_prefix_list(void *rule, const struct prefix *prefix,
 				     route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -181,7 +181,8 @@ struct route_map_rule_cmd route_match_ipv6_address_prefix_list_cmd = {
 
 /* ------------------------------------------------------------*/
 
-static route_map_result_t route_set_metric(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_metric(void *rule,
+					   const struct prefix *prefix,
 					   route_map_object_t type,
 					   void *object)
 {
diff --git a/lib/filter.c b/lib/filter.c
index 670c65374a..0528b0f2ad 100644
--- a/lib/filter.c
+++ b/lib/filter.c
@@ -157,7 +157,7 @@ static const char *filter_type_str(struct filter *filter)
 }
 
 /* If filter match to the prefix then return 1. */
-static int filter_match_cisco(struct filter *mfilter, struct prefix *p)
+static int filter_match_cisco(struct filter *mfilter, const struct prefix *p)
 {
 	struct filter_cisco *filter;
 	struct in_addr mask;
@@ -181,7 +181,7 @@ static int filter_match_cisco(struct filter *mfilter, struct prefix *p)
 }
 
 /* If filter match to the prefix then return 1. */
-static int filter_match_zebra(struct filter *mfilter, struct prefix *p)
+static int filter_match_zebra(struct filter *mfilter, const struct prefix *p)
 {
 	struct filter_zebra *filter = NULL;
 
@@ -372,10 +372,11 @@ static struct access_list *access_list_get(afi_t afi, const char *name)
 }
 
 /* Apply access list to object (which should be struct prefix *). */
-enum filter_type access_list_apply(struct access_list *access, void *object)
+enum filter_type access_list_apply(struct access_list *access,
+				   const void *object)
 {
 	struct filter *filter;
-	struct prefix *p = (struct prefix *)object;
+	const struct prefix *p = (const struct prefix *)object;
 
 	if (access == NULL)
 		return FILTER_DENY;
diff --git a/lib/filter.h b/lib/filter.h
index c02516409b..97854b1e97 100644
--- a/lib/filter.h
+++ b/lib/filter.h
@@ -59,6 +59,7 @@ extern void access_list_reset(void);
 extern void access_list_add_hook(void (*func)(struct access_list *));
 extern void access_list_delete_hook(void (*func)(struct access_list *));
 extern struct access_list *access_list_lookup(afi_t, const char *);
-extern enum filter_type access_list_apply(struct access_list *, void *);
+extern enum filter_type access_list_apply(struct access_list *access,
+					  const void *object);
 
 #endif /* _ZEBRA_FILTER_H */
diff --git a/lib/plist.c b/lib/plist.c
index 056b737f54..2b666f256f 100644
--- a/lib/plist.c
+++ b/lib/plist.c
@@ -656,7 +656,7 @@ static const char *prefix_list_type_str(struct prefix_list_entry *pentry)
 }
 
 static int prefix_list_entry_match(struct prefix_list_entry *pentry,
-				   struct prefix *p)
+				   const struct prefix *p)
 {
 	int ret;
 
@@ -683,14 +683,15 @@ static int prefix_list_entry_match(struct prefix_list_entry *pentry,
 	return 1;
 }
 
-enum prefix_list_type prefix_list_apply_which_prefix(struct prefix_list *plist,
-						     struct prefix **which,
-						     void *object)
+enum prefix_list_type prefix_list_apply_which_prefix(
+	struct prefix_list *plist,
+	const struct prefix **which,
+	const void *object)
 {
 	struct prefix_list_entry *pentry, *pbest = NULL;
 
-	struct prefix *p = (struct prefix *)object;
-	uint8_t *byte = p->u.val;
+	const struct prefix *p = (const struct prefix *)object;
+	const uint8_t *byte = p->u.val;
 	size_t depth;
 	size_t validbits = p->prefixlen;
 	struct pltrie_table *table;
diff --git a/lib/plist.h b/lib/plist.h
index 67e345a485..fecbe0e2ce 100644
--- a/lib/plist.h
+++ b/lib/plist.h
@@ -61,8 +61,9 @@ extern struct prefix_list *prefix_list_lookup(afi_t, const char *);
  * If it is a empty plist return a NULL pointer.
  */
 extern enum prefix_list_type
-prefix_list_apply_which_prefix(struct prefix_list *plist, struct prefix **which,
-			       void *object);
+prefix_list_apply_which_prefix(struct prefix_list *plist,
+			       const struct prefix **which,
+			       const void *object);
 #define prefix_list_apply(A, B) prefix_list_apply_which_prefix((A), NULL, (B))
 
 extern struct prefix_list *prefix_bgp_orf_lookup(afi_t, const char *);
diff --git a/lib/routemap.c b/lib/routemap.c
index 056c793454..6c4585365a 100644
--- a/lib/routemap.c
+++ b/lib/routemap.c
@@ -1387,7 +1387,7 @@ int route_map_delete_set(struct route_map_index *index, const char *set_name,
 
 static route_map_result_t
 route_map_apply_match(struct route_map_rule_list *match_list,
-		      struct prefix *prefix, route_map_object_t type,
+		      const struct prefix *prefix, route_map_object_t type,
 		      void *object)
 {
 	route_map_result_t ret = RMAP_NOMATCH;
@@ -1417,7 +1417,8 @@ route_map_apply_match(struct route_map_rule_list *match_list,
 }
 
 /* Apply route map to the object. */
-route_map_result_t route_map_apply(struct route_map *map, struct prefix *prefix,
+route_map_result_t route_map_apply(struct route_map *map,
+				   const struct prefix *prefix,
 				   route_map_object_t type, void *object)
 {
 	static int recursion = 0;
diff --git a/lib/routemap.h b/lib/routemap.h
index 0aeba7e1f6..0f7c391f84 100644
--- a/lib/routemap.h
+++ b/lib/routemap.h
@@ -87,8 +87,10 @@ struct route_map_rule_cmd {
 	const char *str;
 
 	/* Function for value set or match. */
-	route_map_result_t (*func_apply)(void *, struct prefix *,
-					 route_map_object_t, void *);
+	route_map_result_t (*func_apply)(void *rule,
+					 const struct prefix *prefix,
+					 route_map_object_t type,
+					 void *object);
 
 	/* Compile argument and return result as void *. */
 	void *(*func_compile)(const char *);
@@ -208,7 +210,7 @@ extern struct route_map *route_map_lookup_by_name(const char *name);
 
 /* Apply route map to the object. */
 extern route_map_result_t route_map_apply(struct route_map *map,
-					  struct prefix *,
+					  const struct prefix *prefix,
 					  route_map_object_t object_type,
 					  void *object);
 
diff --git a/ospf6d/ospf6_asbr.c b/ospf6d/ospf6_asbr.c
index a723396507..e6bd3faf40 100644
--- a/ospf6d/ospf6_asbr.c
+++ b/ospf6d/ospf6_asbr.c
@@ -1345,7 +1345,8 @@ static void ospf6_redistribute_show_config(struct vty *vty)
 
 /* Routemap Functions */
 static route_map_result_t
-ospf6_routemap_rule_match_address_prefixlist(void *rule, struct prefix *prefix,
+ospf6_routemap_rule_match_address_prefixlist(void *rule,
+					     const struct prefix *prefix,
 					     route_map_object_t type,
 					     void *object)
 {
@@ -1384,7 +1385,7 @@ struct route_map_rule_cmd ospf6_routemap_rule_match_address_prefixlist_cmd = {
 /* Match function should return 1 if match is success else return
    zero. */
 static route_map_result_t
-ospf6_routemap_rule_match_interface(void *rule, struct prefix *prefix,
+ospf6_routemap_rule_match_interface(void *rule, const struct prefix *prefix,
 				    route_map_object_t type, void *object)
 {
 	struct interface *ifp;
@@ -1422,7 +1423,7 @@ struct route_map_rule_cmd ospf6_routemap_rule_match_interface_cmd = {
 
 /* Match function for matching route tags */
 static route_map_result_t ospf6_routemap_rule_match_tag(void *rule,
-							struct prefix *prefix,
+							const struct prefix *p,
 							route_map_object_t type,
 							void *object)
 {
@@ -1442,7 +1443,7 @@ static struct route_map_rule_cmd ospf6_routemap_rule_match_tag_cmd = {
 };
 
 static route_map_result_t
-ospf6_routemap_rule_set_metric_type(void *rule, struct prefix *prefix,
+ospf6_routemap_rule_set_metric_type(void *rule, const struct prefix *prefix,
 				    route_map_object_t type, void *object)
 {
 	char *metric_type = rule;
@@ -1478,7 +1479,7 @@ struct route_map_rule_cmd ospf6_routemap_rule_set_metric_type_cmd = {
 };
 
 static route_map_result_t
-ospf6_routemap_rule_set_metric(void *rule, struct prefix *prefix,
+ospf6_routemap_rule_set_metric(void *rule, const struct prefix *prefix,
 			       route_map_object_t type, void *object)
 {
 	char *metric = rule;
@@ -1513,7 +1514,7 @@ struct route_map_rule_cmd ospf6_routemap_rule_set_metric_cmd = {
 };
 
 static route_map_result_t
-ospf6_routemap_rule_set_forwarding(void *rule, struct prefix *prefix,
+ospf6_routemap_rule_set_forwarding(void *rule, const struct prefix *prefix,
 				   route_map_object_t type, void *object)
 {
 	char *forwarding = rule;
@@ -1551,7 +1552,7 @@ struct route_map_rule_cmd ospf6_routemap_rule_set_forwarding_cmd = {
 };
 
 static route_map_result_t ospf6_routemap_rule_set_tag(void *rule,
-						      struct prefix *prefix,
+						      const struct prefix *p,
 						      route_map_object_t type,
 						      void *object)
 {
diff --git a/ospfd/ospf_routemap.c b/ospfd/ospf_routemap.c
index f3271acfa2..c5ec1db336 100644
--- a/ospfd/ospf_routemap.c
+++ b/ospfd/ospf_routemap.c
@@ -118,7 +118,7 @@ static void ospf_route_map_event(route_map_event_t event, const char *name)
 /* `match ip netxthop ' */
 /* Match function return 1 if match is success else return zero. */
 static route_map_result_t route_match_ip_nexthop(void *rule,
-						 struct prefix *prefix,
+						 const struct prefix *prefix,
 						 route_map_object_t type,
 						 void *object)
 {
@@ -163,7 +163,7 @@ struct route_map_rule_cmd route_match_ip_nexthop_cmd = {
 /* `match ip next-hop prefix-list PREFIX_LIST' */
 
 static route_map_result_t
-route_match_ip_next_hop_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_next_hop_prefix_list(void *rule, const struct prefix *prefix,
 				    route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -205,7 +205,7 @@ struct route_map_rule_cmd route_match_ip_next_hop_prefix_list_cmd = {
 /* Match function should return 1 if match is success else return
    zero. */
 static route_map_result_t route_match_ip_address(void *rule,
-						 struct prefix *prefix,
+						 const struct prefix *prefix,
 						 route_map_object_t type,
 						 void *object)
 {
@@ -244,7 +244,7 @@ struct route_map_rule_cmd route_match_ip_address_cmd = {
 
 /* `match ip address prefix-list PREFIX_LIST' */
 static route_map_result_t
-route_match_ip_address_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_address_prefix_list(void *rule, const struct prefix *prefix,
 				   route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -280,7 +280,7 @@ struct route_map_rule_cmd route_match_ip_address_prefix_list_cmd = {
 /* Match function should return 1 if match is success else return
    zero. */
 static route_map_result_t route_match_interface(void *rule,
-						struct prefix *prefix,
+						const struct prefix *prefix,
 						route_map_object_t type,
 						void *object)
 {
@@ -318,7 +318,8 @@ struct route_map_rule_cmd route_match_interface_cmd = {
 	route_match_interface_free};
 
 /* Match function return 1 if match is success else return zero. */
-static route_map_result_t route_match_tag(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_tag(void *rule,
+					  const struct prefix *prefix,
 					  route_map_object_t type, void *object)
 {
 	route_tag_t *tag;
@@ -348,7 +349,8 @@ struct ospf_metric {
 
 /* `set metric METRIC' */
 /* Set metric to attribute. */
-static route_map_result_t route_set_metric(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_metric(void *rule,
+					   const struct prefix *prefix,
 					   route_map_object_t type,
 					   void *object)
 {
@@ -427,7 +429,7 @@ struct route_map_rule_cmd route_set_metric_cmd = {
 /* `set metric-type TYPE' */
 /* Set metric-type to attribute. */
 static route_map_result_t route_set_metric_type(void *rule,
-						struct prefix *prefix,
+						const struct prefix *prefix,
 						route_map_object_t type,
 						void *object)
 {
@@ -476,7 +478,7 @@ struct route_map_rule_cmd route_set_metric_type_cmd = {
 	route_set_metric_type_free,
 };
 
-static route_map_result_t route_set_tag(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_tag(void *rule, const struct prefix *prefix,
 					route_map_object_t type, void *object)
 {
 	route_tag_t *tag;
diff --git a/pimd/pim_rp.c b/pimd/pim_rp.c
index cc39b09043..c1623ec15e 100644
--- a/pimd/pim_rp.c
+++ b/pimd/pim_rp.c
@@ -194,7 +194,7 @@ static int pim_rp_prefix_list_used(struct pim_instance *pim, const char *plist)
  */
 static struct rp_info *pim_rp_find_exact(struct pim_instance *pim,
 					 struct in_addr rp,
-					 struct prefix *group)
+					 const struct prefix *group)
 {
 	struct listnode *node;
 	struct rp_info *rp_info;
@@ -212,13 +212,13 @@ static struct rp_info *pim_rp_find_exact(struct pim_instance *pim,
  * Given a group, return the rp_info for that group
  */
 static struct rp_info *pim_rp_find_match_group(struct pim_instance *pim,
-					       struct prefix *group)
+					       const struct prefix *group)
 {
 	struct listnode *node;
 	struct rp_info *best = NULL;
 	struct rp_info *rp_info;
 	struct prefix_list *plist;
-	struct prefix *p, *bp;
+	const struct prefix *p, *bp;
 	struct route_node *rn;
 
 	bp = NULL;
diff --git a/ripd/rip_routemap.c b/ripd/rip_routemap.c
index 2c02324876..88473c164e 100644
--- a/ripd/rip_routemap.c
+++ b/ripd/rip_routemap.c
@@ -58,7 +58,8 @@ static void rip_route_map_update(const char *notused)
 
 /* `match metric METRIC' */
 /* Match function return 1 if match is success else return zero. */
-static route_map_result_t route_match_metric(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_metric(void *rule,
+					     const struct prefix *prefix,
 					     route_map_object_t type,
 					     void *object)
 {
@@ -111,7 +112,7 @@ struct route_map_rule_cmd route_match_metric_cmd = {
 /* `match interface IFNAME' */
 /* Match function return 1 if match is success else return zero. */
 static route_map_result_t route_match_interface(void *rule,
-						struct prefix *prefix,
+						const struct prefix *prefix,
 						route_map_object_t type,
 						void *object)
 {
@@ -159,7 +160,7 @@ struct route_map_rule_cmd route_match_interface_cmd = {
 
 /* Match function return 1 if match is success else return zero. */
 static route_map_result_t route_match_ip_next_hop(void *rule,
-						  struct prefix *prefix,
+						  const struct prefix *prefix,
 						  route_map_object_t type,
 						  void *object)
 {
@@ -206,7 +207,7 @@ static struct route_map_rule_cmd route_match_ip_next_hop_cmd = {
 /* `match ip next-hop prefix-list PREFIX_LIST' */
 
 static route_map_result_t
-route_match_ip_next_hop_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_next_hop_prefix_list(void *rule, const struct prefix *prefix,
 				    route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -251,7 +252,7 @@ static struct route_map_rule_cmd route_match_ip_next_hop_prefix_list_cmd = {
 /* Match function should return 1 if match is success else return
    zero. */
 static route_map_result_t route_match_ip_address(void *rule,
-						 struct prefix *prefix,
+						 const struct prefix *prefix,
 						 route_map_object_t type,
 						 void *object)
 {
@@ -290,7 +291,7 @@ static struct route_map_rule_cmd route_match_ip_address_cmd = {
 /* `match ip address prefix-list PREFIX_LIST' */
 
 static route_map_result_t
-route_match_ip_address_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_address_prefix_list(void *rule, const struct prefix *prefix,
 				   route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -324,7 +325,7 @@ static struct route_map_rule_cmd route_match_ip_address_prefix_list_cmd = {
 
 /* `match tag TAG' */
 /* Match function return 1 if match is success else return zero. */
-static route_map_result_t route_match_tag(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_tag(void *rule, const struct prefix *p,
 					  route_map_object_t type, void *object)
 {
 	route_tag_t *tag;
@@ -354,7 +355,8 @@ static struct route_map_rule_cmd route_match_tag_cmd = {
 /* `set metric METRIC' */
 
 /* Set metric to attribute. */
-static route_map_result_t route_set_metric(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_metric(void *rule,
+					   const struct prefix *prefix,
 					   route_map_object_t type,
 					   void *object)
 {
@@ -453,7 +455,7 @@ static struct route_map_rule_cmd route_set_metric_cmd = {
 
 /* Set nexthop to object.  ojbect must be pointer to struct attr. */
 static route_map_result_t route_set_ip_nexthop(void *rule,
-					       struct prefix *prefix,
+					       const struct prefix *prefix,
 					       route_map_object_t type,
 					       void *object)
 {
@@ -505,7 +507,7 @@ static struct route_map_rule_cmd route_set_ip_nexthop_cmd = {
 /* `set tag TAG' */
 
 /* Set tag to object.  ojbect must be pointer to struct attr. */
-static route_map_result_t route_set_tag(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_tag(void *rule, const struct prefix *prefix,
 					route_map_object_t type, void *object)
 {
 	route_tag_t *tag;
diff --git a/ripngd/ripng_routemap.c b/ripngd/ripng_routemap.c
index e9a38d137b..a18332516e 100644
--- a/ripngd/ripng_routemap.c
+++ b/ripngd/ripng_routemap.c
@@ -38,7 +38,8 @@ struct rip_metric_modifier {
 
 /* `match metric METRIC' */
 /* Match function return 1 if match is success else return zero. */
-static route_map_result_t route_match_metric(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_metric(void *rule,
+					     const struct prefix *prefix,
 					     route_map_object_t type,
 					     void *object)
 {
@@ -86,7 +87,7 @@ static struct route_map_rule_cmd route_match_metric_cmd = {
 /* `match interface IFNAME' */
 /* Match function return 1 if match is success else return zero. */
 static route_map_result_t route_match_interface(void *rule,
-						struct prefix *prefix,
+						const struct prefix *prefix,
 						route_map_object_t type,
 						void *object)
 {
@@ -128,7 +129,8 @@ static struct route_map_rule_cmd route_match_interface_cmd = {
 
 /* `match tag TAG' */
 /* Match function return 1 if match is success else return zero. */
-static route_map_result_t route_match_tag(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_tag(void *rule,
+					  const struct prefix *prefix,
 					  route_map_object_t type, void *object)
 {
 	route_tag_t *tag;
@@ -157,7 +159,8 @@ static struct route_map_rule_cmd route_match_tag_cmd = {
 /* `set metric METRIC' */
 
 /* Set metric to attribute. */
-static route_map_result_t route_set_metric(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_metric(void *rule,
+					   const struct prefix *prefix,
 					   route_map_object_t type,
 					   void *object)
 {
@@ -254,7 +257,7 @@ static struct route_map_rule_cmd route_set_metric_cmd = {
 
 /* Set nexthop to object.  ojbect must be pointer to struct attr. */
 static route_map_result_t route_set_ipv6_nexthop_local(void *rule,
-						       struct prefix *prefix,
+						       const struct prefix *p,
 						       route_map_object_t type,
 						       void *object)
 {
@@ -307,7 +310,8 @@ static struct route_map_rule_cmd route_set_ipv6_nexthop_local_cmd = {
 /* `set tag TAG' */
 
 /* Set tag to object.  ojbect must be pointer to struct attr. */
-static route_map_result_t route_set_tag(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_tag(void *rule,
+					const struct prefix *prefix,
 					route_map_object_t type, void *object)
 {
 	route_tag_t *tag;
diff --git a/zebra/zebra_routemap.c b/zebra/zebra_routemap.c
index bf6718164f..0b48e87b1b 100644
--- a/zebra/zebra_routemap.c
+++ b/zebra/zebra_routemap.c
@@ -137,7 +137,8 @@ static int zebra_route_match_delete(struct vty *vty, const char *command,
 /* 'match tag TAG'
  * Match function return 1 if match is success else return 0
  */
-static route_map_result_t route_match_tag(void *rule, struct prefix *prefix,
+static route_map_result_t route_match_tag(void *rule,
+					  const struct prefix *prefix,
 					  route_map_object_t type, void *object)
 {
 	route_tag_t *tag;
@@ -163,7 +164,7 @@ static struct route_map_rule_cmd route_match_tag_cmd = {
 /* `match interface IFNAME' */
 /* Match function return 1 if match is success else return zero. */
 static route_map_result_t route_match_interface(void *rule,
-						struct prefix *prefix,
+						const struct prefix *prefix,
 						route_map_object_t type,
 						void *object)
 {
@@ -879,7 +880,7 @@ DEFUN (show_ipv6_protocol_nht,
 
 /* Match function return 1 if match is success else return zero. */
 static route_map_result_t route_match_ip_next_hop(void *rule,
-						  struct prefix *prefix,
+						  const struct prefix *prefix,
 						  route_map_object_t type,
 						  void *object)
 {
@@ -937,7 +938,7 @@ static struct route_map_rule_cmd route_match_ip_next_hop_cmd = {
 /* `match ip next-hop prefix-list PREFIX_LIST' */
 
 static route_map_result_t
-route_match_ip_next_hop_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_next_hop_prefix_list(void *rule, const struct prefix *prefix,
 				    route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -993,7 +994,7 @@ static struct route_map_rule_cmd route_match_ip_next_hop_prefix_list_cmd = {
 /* Match function should return 1 if match is success else return
    zero. */
 static route_map_result_t route_match_ip_address(void *rule,
-						 struct prefix *prefix,
+						 const struct prefix *prefix,
 						 route_map_object_t type,
 						 void *object)
 {
@@ -1032,7 +1033,7 @@ static struct route_map_rule_cmd route_match_ip_address_cmd = {
 /* `match ip address prefix-list PREFIX_LIST' */
 
 static route_map_result_t
-route_match_ip_address_prefix_list(void *rule, struct prefix *prefix,
+route_match_ip_address_prefix_list(void *rule, const struct prefix *prefix,
 				   route_map_object_t type, void *object)
 {
 	struct prefix_list *plist;
@@ -1068,7 +1069,7 @@ static struct route_map_rule_cmd route_match_ip_address_prefix_list_cmd = {
 /* `match ip address prefix-len PREFIXLEN' */
 
 static route_map_result_t
-route_match_address_prefix_len(void *rule, struct prefix *prefix,
+route_match_address_prefix_len(void *rule, const struct prefix *prefix,
 			       route_map_object_t type, void *object)
 {
 	uint32_t *prefixlen = (uint32_t *)rule;
@@ -1122,7 +1123,7 @@ static struct route_map_rule_cmd route_match_ipv6_address_prefix_len_cmd = {
 /* `match ip nexthop prefix-len PREFIXLEN' */
 
 static route_map_result_t
-route_match_ip_nexthop_prefix_len(void *rule, struct prefix *prefix,
+route_match_ip_nexthop_prefix_len(void *rule, const struct prefix *prefix,
 				  route_map_object_t type, void *object)
 {
 	uint32_t *prefixlen = (uint32_t *)rule;
@@ -1162,7 +1163,7 @@ static struct route_map_rule_cmd route_match_ip_nexthop_prefix_len_cmd = {
 /* `match source-protocol PROTOCOL' */
 
 static route_map_result_t route_match_source_protocol(void *rule,
-						      struct prefix *prefix,
+						      const struct prefix *p,
 						      route_map_object_t type,
 						      void *object)
 {
@@ -1204,7 +1205,7 @@ static struct route_map_rule_cmd route_match_source_protocol_cmd = {
 
 /* `source-instance` */
 static route_map_result_t route_match_source_instance(void *rule,
-						      struct prefix *prefix,
+						      const struct prefix *p,
 						      route_map_object_t type,
 						      void *object)
 {
@@ -1246,7 +1247,7 @@ static struct route_map_rule_cmd route_match_source_instance_cmd = {
 /* `set src A.B.C.D' */
 
 /* Set src. */
-static route_map_result_t route_set_src(void *rule, struct prefix *prefix,
+static route_map_result_t route_set_src(void *rule, const struct prefix *prefix,
 					route_map_object_t type, void *object)
 {
 	struct nh_rmap_obj *nh_data;
@@ -1359,8 +1360,7 @@ route_map_result_t zebra_route_map_check(int family, int rib_type,
 		rmap = route_map_lookup_by_name(
 			proto_rm[family][ZEBRA_ROUTE_MAX]);
 	if (rmap) {
-		ret = route_map_apply(rmap, (struct prefix *)p,
-				      RMAP_ZEBRA, &nh_obj);
+		ret = route_map_apply(rmap, p, RMAP_ZEBRA, &nh_obj);
 	}
 
 	return (ret);
@@ -1385,7 +1385,8 @@ void zebra_del_import_table_route_map(afi_t afi, uint32_t table)
 
 route_map_result_t
 zebra_import_table_route_map_check(int family, int re_type, uint8_t instance,
-				   struct prefix *p, struct nexthop *nexthop,
+				   const struct prefix *p,
+				   struct nexthop *nexthop,
 				   vrf_id_t vrf_id, route_tag_t tag,
 				   const char *rmap_name)
 {
@@ -1410,7 +1411,7 @@ zebra_import_table_route_map_check(int family, int re_type, uint8_t instance,
 }
 
 route_map_result_t zebra_nht_route_map_check(int family, int client_proto,
-					     struct prefix *p,
+					     const struct prefix *p,
 					     struct route_entry *re,
 					     struct nexthop *nexthop)
 {
@@ -1430,11 +1431,10 @@ route_map_result_t zebra_nht_route_map_check(int family, int client_proto,
 	if (!rmap && nht_rm[family][ZEBRA_ROUTE_MAX])
 		rmap = route_map_lookup_by_name(
 			nht_rm[family][ZEBRA_ROUTE_MAX]);
-	if (rmap) {
+	if (rmap)
 		ret = route_map_apply(rmap, p, RMAP_ZEBRA, &nh_obj);
-	}
 
-	return (ret);
+	return ret;
 }
 
 static void zebra_route_map_mark_update(const char *rmap_name)
diff --git a/zebra/zebra_routemap.h b/zebra/zebra_routemap.h
index 688c8b7203..d33487d7af 100644
--- a/zebra/zebra_routemap.h
+++ b/zebra/zebra_routemap.h
@@ -35,7 +35,8 @@ extern void zebra_route_map_write_delay_timer(struct vty *);
 
 extern route_map_result_t
 zebra_import_table_route_map_check(int family, int rib_type, uint8_t instance,
-				   struct prefix *p, struct nexthop *nexthop,
+				   const struct prefix *p,
+				   struct nexthop *nexthop,
 				   vrf_id_t vrf_id, route_tag_t tag,
 				   const char *rmap_name);
 extern route_map_result_t
@@ -43,7 +44,7 @@ zebra_route_map_check(int family, int rib_type, uint8_t instance,
 		      const struct prefix *p, struct nexthop *nexthop,
 		      vrf_id_t vrf_id, route_tag_t tag);
 extern route_map_result_t
-zebra_nht_route_map_check(int family, int client_proto, struct prefix *p,
+zebra_nht_route_map_check(int family, int client_proto, const struct prefix *p,
 			  struct route_entry *, struct nexthop *nexthop);