ripngd: implement northbound callbacks to fetch route information

The "routes" YANG container was copied and adapted from the ietf-rip
module.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

diff --git a/ripngd/ripng_northbound.c b/ripngd/ripng_northbound.c
index ad727582ddb77b3577452890a6c764d4d30fad68..7993714e8d3540a5c93cfe380320651032239049 100644 (file)
--- a/ripngd/ripng_northbound.c
+++ b/ripngd/ripng_northbound.c
@@ -677,14 +677,29 @@ static const void *
 ripngd_state_routes_route_get_next(const void *parent_list_entry,
                                   const void *list_entry)
 {
-       /* TODO: implement me. */
-       return NULL;
+       struct agg_node *rn;
+
+       if (ripng == NULL)
+               return NULL;
+
+       if (list_entry == NULL)
+               rn = agg_route_top(ripng->table);
+       else
+               rn = agg_route_next((struct agg_node *)list_entry);
+       while (rn && rn->info == NULL)
+               rn = agg_route_next(rn);
+
+       return rn;
 }
 
 static int ripngd_state_routes_route_get_keys(const void *list_entry,
                                              struct yang_list_keys *keys)
 {
-       /* TODO: implement me. */
+       const struct agg_node *rn = list_entry;
+
+       keys->num = 1;
+       (void)prefix2str(&rn->p, keys->key[0], sizeof(keys->key[0]));
+
        return NB_OK;
 }
 
@@ -692,8 +707,18 @@ static const void *
 ripngd_state_routes_route_lookup_entry(const void *parent_list_entry,
                                       const struct yang_list_keys *keys)
 {
-       /* TODO: implement me. */
-       return NULL;
+       struct prefix prefix;
+       struct agg_node *rn;
+
+       yang_str2ipv6p(keys->key[0], &prefix);
+
+       rn = agg_node_lookup(ripng->table, &prefix);
+       if (!rn || !rn->info)
+               return NULL;
+
+       agg_unlock_node(rn);
+
+       return rn;
 }
 
 /*
@@ -703,8 +728,10 @@ static struct yang_data *
 ripngd_state_routes_route_prefix_get_elem(const char *xpath,
                                          const void *list_entry)
 {
-       /* TODO: implement me. */
-       return NULL;
+       const struct agg_node *rn = list_entry;
+       const struct ripng_info *rinfo = listnode_head(rn->info);
+
+       return yang_data_new_ipv6p(xpath, &rinfo->rp->p);
 }
 
 /*
@@ -714,8 +741,10 @@ static struct yang_data *
 ripngd_state_routes_route_next_hop_get_elem(const char *xpath,
                                            const void *list_entry)
 {
-       /* TODO: implement me. */
-       return NULL;
+       const struct agg_node *rn = list_entry;
+       const struct ripng_info *rinfo = listnode_head(rn->info);
+
+       return yang_data_new_ipv6(xpath, &rinfo->nexthop);
 }
 
 /*
@@ -725,8 +754,11 @@ static struct yang_data *
 ripngd_state_routes_route_interface_get_elem(const char *xpath,
                                             const void *list_entry)
 {
-       /* TODO: implement me. */
-       return NULL;
+       const struct agg_node *rn = list_entry;
+       const struct ripng_info *rinfo = listnode_head(rn->info);
+
+       return yang_data_new_string(
+               xpath, ifindex2ifname(rinfo->ifindex, VRF_DEFAULT));
 }
 
 /*
@@ -736,8 +768,10 @@ static struct yang_data *
 ripngd_state_routes_route_metric_get_elem(const char *xpath,
                                          const void *list_entry)
 {
-       /* TODO: implement me. */
-       return NULL;
+       const struct agg_node *rn = list_entry;
+       const struct ripng_info *rinfo = listnode_head(rn->info);
+
+       return yang_data_new_uint8(xpath, rinfo->metric);
 }
 
 /*