int
handle_mapping_start(struct streamstate* stp)
{
stp->curmap = new_mapping(stp, stp->curmap);
if (! stp->curmap)
return 1;
struct keyvalue* kv = stp->curkv;
if (kv)
{
/*
* this mapping is the value for the current keyvalue
*/
kv->type = KV_MAPPING;
kv->map = stp->curmap;
kv->valuemark = stp->event.start_mark;
stp->curkv = NULL;
}
else
{
/*
* this mapping is the top level document.
*/
if (! stp->document)
stp->document = stp->curmap;
}
return 0;
}
Compartment_Report_Mapping_Ptr
Compartment_Report_Binary_File_Reader::update_mapping
(const Cell_Target & new_cell_target)
{
Compartment_Report_Mapping_Ptr new_mapping(new Compartment_Report_Mapping);
_parser.cell_target(new_cell_target);
(*new_mapping) = _parser.mapping();
return new_mapping;
}
void Faction::setDisposition(Faction* f, disposition d) {
disposition disp_original = getDisposition(f);
if (disp_by_fac.count(f)) {
//previously mapped:
disp_by_fac[f] = d;
auto fac_l_o = fac_by_disp[disp_original];
fac_l_o.erase(f);
} else {
//not previously mapped:
std::pair<Faction*, disposition> new_mapping(f, d);
disp_by_fac.insert(new_mapping);
//update fac_by_disp:
}
auto fac_l_n = fac_by_disp[d];
fac_l_n.insert(f);
}
/*
* Generates a mapping with the local extended info
*/
lispd_mapping_elt *new_local_mapping(
lisp_addr_t eid_prefix,
uint8_t eid_prefix_length,
int iid)
{
lispd_mapping_elt *mapping = NULL;
if ((mapping = new_mapping (eid_prefix, eid_prefix_length, iid)) == NULL){
return (NULL);
}
mapping->mapping_type = LOCAL_MAPPING;
mapping->extended_info = (void *)new_lcl_mapping_extended_info();
if (mapping->extended_info == NULL){
free_mapping_elt(mapping);
return (NULL);
}
return (mapping);
}
/*
* Generates a clone of a lispd_mapping_elt. Parameters like timers or nonces are not cloned
*/
lispd_mapping_elt *copy_mapping_elt(lispd_mapping_elt *elt)
{
lispd_mapping_elt *mapping = NULL;
mapping = new_mapping(elt->eid_prefix,elt->eid_prefix_length,elt->iid);
if (mapping == NULL){
return (NULL);
}
mapping->locator_count = elt->locator_count;
if (elt->head_v4_locators_list != NULL){
mapping->head_v4_locators_list = copy_locators_list(elt->head_v4_locators_list);
if (mapping->head_v4_locators_list == NULL){
free_mapping_elt(mapping);
return (NULL);
}
}
if(elt->head_v6_locators_list != NULL){
mapping->head_v6_locators_list = copy_locators_list(elt->head_v6_locators_list);
if (mapping->head_v6_locators_list == NULL){
free_mapping_elt(mapping);
return(NULL);
}
}
if (elt->extended_info != NULL){
if (mapping->mapping_type == LOCAL_MAPPING){
mapping->extended_info = (void *)copy_lcl_mapping_extended_info((lcl_mapping_extended_info *)elt->extended_info);
if (mapping->extended_info == NULL){
free_mapping_elt(mapping);
return(NULL);
}
calculate_balancing_vectors (mapping,&(((lcl_mapping_extended_info *)mapping->extended_info)->outgoing_balancing_locators_vecs));
}else{
mapping->extended_info = (void *)copy_rmt_mapping_extended_info((rmt_mapping_extended_info *)elt->extended_info);
if (mapping->extended_info == NULL){
free_mapping_elt(mapping);
return(NULL);
}
calculate_balancing_vectors (mapping,&(((rmt_mapping_extended_info *)mapping->extended_info)->rmt_balancing_locators_vecs));
}
}
return (mapping);
}
int process_map_referral_record(
uint8_t **offset,
uint64_t nonce)
{
uint8_t *cur_ptr = NULL;
lispd_pkt_referral_mapping_record_t *record = NULL;
lispd_referral_cache_entry *referral_entry = NULL;
lispd_referral_cache_entry *previous_referral_entry = NULL;
lispd_mapping_elt *referral_mapping = NULL;
lispd_pending_referral_cache_entry *pending_referral_entry = NULL;
lispd_map_cache_entry *map_cache_entry = NULL;
lisp_addr_t ddt_node_locator_addr = {.afi=AF_UNSPEC};
lisp_addr_t aux_eid_prefix;
int aux_eid_prefix_length = 0;
int aux_iid = 0;
int ctr = 0;
int result = GOOD;
int detected_loop = FALSE;
cur_ptr = *offset;
record = (lispd_pkt_referral_mapping_record_t *)(cur_ptr);
pending_referral_entry = lookup_pending_referral_cache_entry_by_nonce (nonce);
if (pending_referral_entry == NULL){
lispd_log_msg(LISP_LOG_DEBUG_2,"process_map_referral_record: The nonce of the Map-Referral doesn't match the nonce of any generated Map-Request. Discarding message ...");
free_mapping_elt(referral_mapping);
return (BAD);
}else {
if (pending_referral_entry->previous_referral->act_entry_type == MS_NOT_REGISTERED){
previous_referral_entry = pending_referral_entry->previous_referral->parent_node;
ddt_node_locator_addr = get_ddt_locator_addr_at_position(pending_referral_entry->previous_referral->parent_node,
ctrl_supported_afi, pending_referral_entry->tried_locators);
}else{
previous_referral_entry = pending_referral_entry->previous_referral;
ddt_node_locator_addr = get_ddt_locator_addr_at_position(pending_referral_entry->previous_referral,
ctrl_supported_afi, pending_referral_entry->tried_locators);
}
}
free(pending_referral_entry->nonces);
pending_referral_entry->nonces = NULL;
/* Stop the timer to not retry to send the map request */
stop_timer(pending_referral_entry->ddt_request_retry_timer);
pending_referral_entry->ddt_request_retry_timer = NULL;
/* Fill a auxiliar mapping with the information of the packet */
referral_mapping = new_mapping(aux_eid_prefix,aux_eid_prefix_length,aux_iid);
if (referral_mapping == NULL){
return (BAD);
}
cur_ptr = (uint8_t *)&(record->eid_prefix_afi);
if (pkt_process_eid_afi(&cur_ptr,referral_mapping) != GOOD){
lispd_log_msg(LISP_LOG_DEBUG_2,"process_map_referral_record: Error processing the EID of the map reply record");
free_mapping_elt(referral_mapping);
return (BAD);
}
referral_mapping->eid_prefix_length = record->eid_prefix_length;
/* Check that the requested EID belongs to the returned prefix in the referral */
if (is_prefix_b_part_of_a (
referral_mapping->eid_prefix,
referral_mapping->eid_prefix_length,
pending_referral_entry->map_cache_entry->mapping->eid_prefix,
pending_referral_entry->map_cache_entry->mapping->eid_prefix_length) == FALSE){
lispd_log_msg(LISP_LOG_DEBUG_1,"process_map_referral_record: The requested EID doesn't belong to the prefix received "
"in the map referral: EID: %s - received prefix: %s/%d",
get_char_from_lisp_addr_t(pending_referral_entry->map_cache_entry->mapping->eid_prefix),
get_char_from_lisp_addr_t(referral_mapping->eid_prefix),referral_mapping->eid_prefix_length);
err = try_next_referral_node_or_go_through_root (pending_referral_entry);
if (err != GOOD){
if (err == ERR_DST_ADDR){
err = activate_negative_map_cache (pending_referral_entry->map_cache_entry,
pending_referral_entry->map_cache_entry->mapping->eid_prefix,
pending_referral_entry->map_cache_entry->mapping->eid_prefix_length,
1,MAPPING_ACT_NO_ACTION);
if (err != GOOD){
del_map_cache_entry_from_db(pending_referral_entry->map_cache_entry->mapping->eid_prefix,
pending_referral_entry->map_cache_entry->mapping->eid_prefix_length);
}
}
remove_pending_referral_cache_entry_from_list(pending_referral_entry);
}
free_mapping_elt(referral_mapping);
return (BAD);
}
/*
* Avoid loops:
* - Check that the returned referral has a more specific prefix than the previous referral
* - If received referral is: MS_REFERRAL or NODE_REFERRAL, Check that its prefix is diferent from the previous one.
*/
if (is_prefix_b_part_of_a (
previous_referral_entry->mapping->eid_prefix,
previous_referral_entry->mapping->eid_prefix_length,
referral_mapping->eid_prefix,
referral_mapping->eid_prefix_length) == FALSE){
lispd_log_msg(LISP_LOG_DEBUG_1,"process_map_referral_record: Loop detected in the ddt process-> "
"received prefix: %s/%d - previous prefix: %s/%d. Trying next ddt node",
get_char_from_lisp_addr_t(referral_mapping->eid_prefix),referral_mapping->eid_prefix_length,
get_char_from_lisp_addr_t(previous_referral_entry->mapping->eid_prefix),
previous_referral_entry->mapping->eid_prefix_length);
detected_loop = TRUE;
}else if ((previous_referral_entry->mapping->eid_prefix_length == referral_mapping->eid_prefix_length) &&
(record->action == NODE_REFERRAL || record->action == MS_REFERRAL)){
lispd_log_msg(LISP_LOG_DEBUG_1,"process_map_referral_record: Loop detected in the ddt process-> "
"%s message contains same prefix as last referral iteration : %s/%d",
(record->action == NODE_REFERRAL ? "Node referral" : "MS referral"),
get_char_from_lisp_addr_t(referral_mapping->eid_prefix),
referral_mapping->eid_prefix_length);
detected_loop = TRUE;
}
if ( detected_loop == TRUE){
/* Try with the next ddt node*/
err = try_next_referral_node_or_go_through_root (pending_referral_entry);
if (err != GOOD){
if (err == ERR_DST_ADDR){
lispd_log_msg(LISP_LOG_DEBUG_1,"process_map_referral_record: Loop detected in the ddt process-> "
"error in the ddt tree");
err = activate_negative_map_cache (pending_referral_entry->map_cache_entry,
previous_referral_entry->mapping->eid_prefix,
previous_referral_entry->mapping->eid_prefix_length,
1,MAPPING_ACT_NO_ACTION);
if (err != GOOD){
del_map_cache_entry_from_db(pending_referral_entry->map_cache_entry->mapping->eid_prefix,
pending_referral_entry->map_cache_entry->mapping->eid_prefix_length);
}
}
remove_pending_referral_cache_entry_from_list(pending_referral_entry);
}
free_mapping_elt(referral_mapping);
return (BAD);
}
map_cache_entry = pending_referral_entry->map_cache_entry;
if (map_cache_entry->mapping->iid != referral_mapping->iid){
lispd_log_msg(LISP_LOG_DEBUG_2,"process_map_referral_record: Instance ID of the map referral doesn't match with the pending referral cache entry");
free_mapping_elt(referral_mapping);
remove_pending_referral_cache_entry_from_list(pending_referral_entry);
return (BAD);
}
/* Create the referral cache entry */
referral_entry = new_referral_cache_entry(referral_mapping, record->action, ntohl(record->ttl));
referral_entry->src_inf_ddt_node_locator_addr = ddt_node_locator_addr;
/* Get the locators list */
for (ctr=0 ; ctr < record->locator_count ; ctr++){
if ((process_map_referral_locator (&cur_ptr, referral_entry->mapping)) != GOOD){
return(BAD);
}
}
lispd_log_msg(LISP_LOG_DEBUG_2,"process_map_referral_record:Answer from %s : Authoritative: %d , Incomplete: %d",
get_char_from_lisp_addr_t(referral_entry->src_inf_ddt_node_locator_addr),record->authoritative,record->incomplete);
dump_referral_cache_entry(referral_entry,LISP_LOG_DEBUG_2);
switch (referral_entry->act_entry_type){
case NODE_REFERRAL:
result = process_node_referral_reply(referral_entry,pending_referral_entry);
break;
case MS_REFERRAL:
result = process_ms_referral_reply(referral_entry,pending_referral_entry);
break;
case MS_ACK:
result = process_ms_ack_reply(referral_entry,pending_referral_entry);
break;
case MS_NOT_REGISTERED:
result = process_ms_not_registered_reply(referral_entry,pending_referral_entry);
break;
case DELEGATION_HOLE:
result = process_delegation_hole_reply(referral_entry,pending_referral_entry);
break;
case NOT_AUTHORITATIVE:
result = process_not_authoritative_reply(referral_entry,pending_referral_entry);
break;
default:
lispd_log_msg(LISP_LOG_DEBUG_2,"process_map_referral_record: Referral record %s/%d with not supported action: %d",
get_char_from_lisp_addr_t(referral_mapping->eid_prefix),referral_mapping->eid_prefix_length,referral_entry->act_entry_type);
result = BAD;
break;
}
return (result);
}
