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/*
* Copyright (c) 2021 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* \file route.c
* \brief Implementation of hICN route
*/
#include <hicn/hicn.h>
#include <hicn/ctrl/route.h>
#include <hicn/util/ip_address.h>
#define DEFAULT_HICN_ROUTE_COST 1
struct hicn_route_s {
ip_prefix_t prefix;
face_id_t face_id;
route_cost_t cost; /* Optional, 0 means no value, defaults to 1 */
};
hicn_route_t* hicn_route_create(ip_prefix_t* prefix, face_id_t face_id,
route_cost_t cost) {
hicn_route_t* route = malloc(sizeof(hicn_route_t));
if (!route) return NULL;
route->prefix = *prefix;
route->face_id = face_id;
route->cost = cost != 0 ? cost : DEFAULT_HICN_ROUTE_COST;
return route;
}
hicn_route_t* hicn_route_dup(const hicn_route_t* route) {
hicn_route_t* new_route = malloc(sizeof(hicn_route_t));
if (!route) return NULL;
memcpy(new_route, route, sizeof(hicn_route_t));
return new_route;
}
void hicn_route_free(hicn_route_t* route) { free(route); }
int hicn_route_cmp(const hicn_route_t* route1, const hicn_route_t* route2) {
int rc;
rc = ip_prefix_cmp(&route1->prefix, &route2->prefix);
if (rc != 0) return rc;
return (route1->face_id > route2->face_id) ? 1
: (route1->face_id < route2->face_id) ? -1
: 0;
}
int hicn_route_get_prefix(const hicn_route_t* route, ip_prefix_t* prefix) {
*prefix = route->prefix;
return 0;
}
int hicn_route_set_prefix(hicn_route_t* route, const ip_prefix_t prefix) {
route->prefix = prefix;
return 0;
}
int hicn_route_get_cost(const hicn_route_t* route, int* cost) {
*cost = route->cost;
return 0;
}
int hicn_route_set_cost(hicn_route_t* route, const int cost) {
route->cost = cost;
return 0;
}
/* /!\ Please update constants in header file upon changes */
size_t hicn_route_snprintf(char* s, size_t size, const hicn_route_t* route) {
char prefix_s[MAXSZ_IP_PREFIX];
ip_prefix_ntop(&route->prefix, prefix_s, MAXSZ_IP_PREFIX);
return snprintf(s, size, "%s [%d]", prefix_s, route->cost);
}
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