int get_map_request_length (lispd_mapping_elt *requested_mapping, lispd_mapping_elt *src_mapping)
{
int mr_len = 0;
int locator_count = 0, aux_locator_count = 0;
mr_len = sizeof(lispd_pkt_map_request_t);
if (src_mapping != NULL){
mr_len += get_mapping_length(src_mapping);
/* Calculate locators length */
mr_len += get_up_locators_length(src_mapping->head_v4_locators_list,&aux_locator_count);
locator_count = aux_locator_count;
mr_len += get_up_locators_length(src_mapping->head_v6_locators_list,&aux_locator_count);
locator_count += aux_locator_count;
}else{
if (default_ctrl_iface_v4 != NULL){
mr_len += sizeof(struct in_addr);
locator_count ++;
}
if (default_ctrl_iface_v6 != NULL){
mr_len += sizeof(struct in6_addr);
locator_count ++;
}
}
mr_len += sizeof(lispd_pkt_map_request_itr_rloc_t)*locator_count; // ITR-RLOC-AFI field
/* Record size */
mr_len += sizeof(lispd_pkt_map_request_eid_prefix_record_t);
// We supose that the requested EID has the same AFI as the source EID
mr_len += get_mapping_length(requested_mapping);
/* Add the Map-Reply Record */
if (src_mapping != NULL)
mr_len += pkt_get_mapping_record_length(src_mapping);
return mr_len;
}
int pkt_get_mapping_record_length(lispd_mapping_elt *mapping)
{
lispd_locators_list *locators_list[2] = {
mapping->head_v4_locators_list,
mapping->head_v6_locators_list};
int length = 0;
int loc_length = 0;
int eid_length = 0;
int ctr;
for (ctr = 0 ; ctr < 2 ; ctr ++){
if (locators_list[ctr] == NULL)
continue;
loc_length += get_locators_length(locators_list[ctr]);
}
eid_length = get_mapping_length(mapping);
length = sizeof(lispd_pkt_mapping_record_t) + eid_length +
(mapping->locator_count * sizeof(lispd_pkt_mapping_record_locator_t)) +
loc_length;
return (length);
}
