void neigh_create(switchlink_handle_t vrf_h,
switchlink_ip_addr_t *ipaddr,
switchlink_mac_addr_t mac_addr,
switchlink_handle_t intf_h) {
switchlink_db_status_t status;
switchlink_db_neigh_info_t neigh_info;
if ((ipaddr->family == AF_INET6) &&
IN6_IS_ADDR_MULTICAST(&(ipaddr->ip.v6addr))) {
return;
}
memset(&neigh_info, 0, sizeof(switchlink_db_neigh_info_t));
neigh_info.vrf_h = vrf_h;
neigh_info.intf_h = intf_h;
memcpy(&(neigh_info.ip_addr), ipaddr, sizeof(switchlink_ip_addr_t));
status = switchlink_db_neighbor_get_info(&neigh_info);
if (status == SWITCHLINK_DB_STATUS_SUCCESS) {
if (memcmp(neigh_info.mac_addr, mac_addr, sizeof(switchlink_mac_addr_t)) ==
0) {
// no change
return;
}
// update, currently handled as a delete followed by add
neigh_delete(vrf_h, ipaddr, intf_h);
}
memcpy(neigh_info.mac_addr, mac_addr, sizeof(switchlink_mac_addr_t));
if (switchlink_nexthop_create(&neigh_info) == -1) {
return;
}
if (switchlink_neighbor_create(&neigh_info) == -1) {
switchlink_nexthop_delete(&neigh_info);
return;
}
switchlink_db_neighbor_add(&neigh_info);
// add a host route
route_create(g_default_vrf_h, ipaddr, ipaddr, 0, intf_h);
}
static void
neigh_delete(switchlink_handle_t vrf_h, switchlink_ip_addr_t *ipaddr,
switchlink_handle_t intf_h) {
switchlink_db_neigh_info_t neigh_info;
switchlink_db_status_t status;
memset(&neigh_info, 0, sizeof(switchlink_db_neigh_info_t));
neigh_info.vrf_h = vrf_h;
neigh_info.intf_h = intf_h;
memcpy(&(neigh_info.ip_addr), ipaddr, sizeof(switchlink_ip_addr_t));
status = switchlink_db_neighbor_get_info(&neigh_info);
if (status != SWITCHLINK_DB_STATUS_SUCCESS) {
return;
}
switchlink_neighbor_delete(&neigh_info);
switchlink_nexthop_delete(&neigh_info);
switchlink_db_neighbor_delete(&neigh_info);
// delete the host route
route_delete(g_default_vrf_h, ipaddr);
}
