/**
* The main ip address has changed.
* Do the needful.
*/
void
olsr_change_myself_tc(void)
{
struct nbr_entry *entry, *iterator;
bool main_ip_change = false;
if (tc_myself) {
/*
* Check if there was a change.
*/
if (olsr_ipcmp(&tc_myself->addr, &olsr_cnf->router_id) == 0) {
return;
}
/* flush local edges */
OLSR_FOR_ALL_NBR_ENTRIES(entry, iterator) {
if (entry->tc_edge) {
/* clean up local edges if necessary */
entry->tc_edge->neighbor = NULL;
olsr_delete_tc_edge_entry(entry->tc_edge);
entry->tc_edge = NULL;
}
}
/*
* Flush our own tc_entry.
*/
olsr_delete_tc_entry(tc_myself);
/*
* Clear the reference.
*/
tc_myself = NULL;
main_ip_change = true;
}
/*
* The old entry for ourselves is gone, generate a new one and trigger SPF.
*/
tc_myself = olsr_add_tc_entry(&olsr_cnf->router_id);
if (main_ip_change) {
OLSR_FOR_ALL_NBR_ENTRIES(entry, iterator) {
/**
* check if a main ip change destroyed our TC entries
*/
if (entry->tc_edge == NULL) {
entry->tc_edge = olsr_add_tc_edge_entry(tc_myself, &entry->nbr_addr, 0);
entry->tc_edge->neighbor = entry;
}
}
}
changes_topology = true;
}
/**
* Attempts to delete a tc entry. This will work unless there are virtual edges left
* that cannot be removed
*
* @param entry the TC entry to delete
*
*/
void
olsr_delete_tc_entry(struct tc_entry *tc)
{
struct tc_edge_entry *tc_edge, *edge_iterator;
struct rt_path *rtp, *rtp_iterator;
#if !defined REMOVE_LOG_DEBUG
struct ipaddr_str buf;
#endif
OLSR_DEBUG(LOG_TC, "TC: del entry %s\n", olsr_ip_to_string(&buf, &tc->addr));
/* The delete all non-virtual edges */
OLSR_FOR_ALL_TC_EDGE_ENTRIES(tc, tc_edge, edge_iterator) {
olsr_delete_tc_edge_entry(tc_edge);
}
/**
* Delete a TC entry.
*
* @param tc the TC entry to delete
*/
void
olsr_delete_tc_entry(struct tc_entry *tc)
{
struct tc_edge_entry *tc_edge;
struct rt_path *rtp;
/* delete gateway if available */
#ifdef __linux__
olsr_delete_gateway_entry(&tc->addr, FORCE_DELETE_GW_ENTRY, false);
#endif /* __linux__ */
/*
* Delete the rt_path for ourselves.
*/
olsr_delete_routing_table(&tc->addr, olsr_cnf->maxplen, &tc->addr);
/* The edgetree and prefix tree must be empty before */
OLSR_FOR_ALL_TC_EDGE_ENTRIES(tc, tc_edge) {
olsr_delete_tc_edge_entry(tc_edge);
} OLSR_FOR_ALL_TC_EDGE_ENTRIES_END(tc, tc_edge);
/**
* Delete a TC entry.
*
* @param entry the TC entry to delete
*
*/
void
olsr_delete_tc_entry(struct tc_entry *tc)
{
struct tc_edge_entry *tc_edge;
struct rt_path *rtp;
#if 0
struct ipaddr_str buf;
OLSR_PRINTF(1, "TC: del entry %s\n", olsr_ip_to_string(&buf, &tc->addr));
#endif
/* delete gateway if available */
#ifdef linux
olsr_delete_gateway_entry(&tc->addr, FORCE_DELETE_GW_ENTRY);
#endif
/*
* Delete the rt_path for ourselves.
*/
olsr_delete_routing_table(&tc->addr, olsr_cnf->maxplen, &tc->addr);
/* The edgetree and prefix tree must be empty before */
OLSR_FOR_ALL_TC_EDGE_ENTRIES(tc, tc_edge) {
olsr_delete_tc_edge_entry(tc_edge);
} OLSR_FOR_ALL_TC_EDGE_ENTRIES_END(tc, tc_edge);
