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RPL Multicast group management with MOP 3

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This commit is contained in:
George Oikonomou 2011-12-09 12:15:04 +00:00 • committed by George Oikonomou
parent 0ad09aa842
commit da4ce5b54d
5 changed files with 109 additions and 0 deletions
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30
core/net/rpl/rpl-timers.c
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@ -41,6 +41,7 @@
#include "contiki-conf.h"
#include "net/rpl/rpl-private.h"
#include "net/ipv6/multicast/uip-mcast6.h"
#include "lib/random.h"
#include "sys/ctimer.h"
@ -220,6 +221,10 @@ static void
handle_dao_timer(void *ptr)
{
rpl_instance_t *instance;
#if RPL_CONF_MULTICAST
uip_mcast6_route_t *mcast_route;
uint8_t i;
#endif
instance = (rpl_instance_t *)ptr;
@ -234,6 +239,31 @@ handle_dao_timer(void *ptr)
PRINTF("RPL: handle_dao_timer - sending DAO\n");
/* Set the route lifetime to the default value. */
dao_output(instance->current_dag->preferred_parent, instance->default_lifetime);
#if RPL_CONF_MULTICAST
/* Send DAOs for multicast prefixes only if the instance is in MOP 3 */
if(instance->mop == RPL_MOP_STORING_MULTICAST) {
/* Send a DAO for own multicast addresses */
for(i = 0; i < UIP_DS6_MADDR_NB; i++) {
if(uip_ds6_if.maddr_list[i].isused
&& uip_is_addr_mcast_global(&uip_ds6_if.maddr_list[i].ipaddr)) {
dao_output_target(instance->current_dag->preferred_parent,
&uip_ds6_if.maddr_list[i].ipaddr, RPL_MCAST_LIFETIME);
}
}
/* Iterate over multicast routes and send DAOs */
mcast_route = uip_mcast6_route_list_head();
while(mcast_route != NULL) {
/* Don't send if it's also our own address, done that already */
if(uip_ds6_maddr_lookup(&mcast_route->group) == NULL) {
dao_output_target(instance->current_dag->preferred_parent,
&mcast_route->group, RPL_MCAST_LIFETIME);
}
mcast_route = list_item_next(mcast_route);
}
}
#endif
} else {
PRINTF("RPL: No suitable DAO parent\n");
}