void rpl_add_routing_entry(ipv6_addr_t *addr, ipv6_addr_t *next_hop, uint16_t lifetime)
{
rpl_routing_entry_t *entry = rpl_find_routing_entry(addr);
if (entry != NULL) {
entry->lifetime = lifetime;
return;
}
for (uint8_t i = 0; i < RPL_MAX_ROUTING_ENTRIES; i++) {
if (!routing_table[i].used) {
routing_table[i].address = *addr;
routing_table[i].next_hop = *next_hop;
routing_table[i].lifetime = lifetime;
routing_table[i].used = 1;
break;
}
}
}
void rpl_add_routing_entry(ipv6_addr_t *addr, ipv6_addr_t *next_hop, uint16_t lifetime)
{
rpl_routing_entry_t *entry = rpl_find_routing_entry(addr);
if (entry != NULL) {
entry->lifetime = lifetime;
return;
}
DEBUGF("Adding routing entry %s\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, addr));
for (uint8_t i = 0; i < rpl_max_routing_entries; i++) {
if (!rpl_routing_table[i].used) {
memcpy(&rpl_routing_table[i].address, addr, sizeof(ipv6_addr_t));
memcpy(&rpl_routing_table[i].next_hop, next_hop, sizeof(ipv6_addr_t));
rpl_routing_table[i].lifetime = lifetime;
rpl_routing_table[i].used = 1;
break;
}
}
}
void rpl_add_srh_entry(ipv6_addr_t *child, ipv6_addr_t *parent, uint16_t lifetime)
{
rpl_routing_entry_t *entry = rpl_find_routing_entry(child);
/* If we already have this entry and the parent from parent/child is the same as already
* registered, we only update the lifetime. If only the parent of the child changes, we
* delete the previous entry and add it below.
*/
if (entry != NULL) {
if (ipv6_addr_is_equal(parent, &entry->next_hop)) {
entry->lifetime = lifetime;
return;
}
else {
rpl_del_routing_entry(child);
}
}
/* This maybe a bit confusing since the root also using the standard routing table,
* but in this case the code stays cleaner - especially for rt_over_timer from trickle.c.
* Just keep in mind that address is now child (unique, iteration variable) and parent is
* now next_hop. The whole routing table transforms to a list of children and their parents,
* so that route aggregation can be done properly.
*/
DEBUGF("Adding source-routing entry child: %s\n",
ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, child));
DEBUGF("Adding source-routing entry parent: %s\n",
ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, parent));
for (uint8_t i = 0; i < rpl_max_routing_entries; i++) {
if (!rpl_routing_table[i].used) {
memcpy(&rpl_routing_table[i].address, child, sizeof(ipv6_addr_t));
memcpy(&rpl_routing_table[i].next_hop, parent, sizeof(ipv6_addr_t));
rpl_routing_table[i].lifetime = lifetime;
rpl_routing_table[i].used = 1;
break;
}
}
}
