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Merge pull request #1406 from simonduq/pr/fix-rpl-multi-dag

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RPL multiple DAG bugfix
This commit is contained in:
Nicolas Tsiftes 2015-12-02 11:19:37 +01:00
parent 94c26b90d0 ecc16645ad
commit 35fb0614de
1 changed files with 13 additions and 7 deletions
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20
core/net/rpl/rpl-dag.c
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@ -95,10 +95,11 @@ rpl_print_neighbor_list()
printf("RPL: rank %u dioint %u, %u nbr(s)\n", curr_rank, curr_dio_interval, uip_ds6_nbr_num());
while(p != NULL) {
uip_ds6_nbr_t *nbr = rpl_get_nbr(p);
printf("RPL: nbr %3u %5u, %5u => %5u %c (last tx %u min ago)\n",
printf("RPL: nbr %3u %5u, %5u => %5u %c%c (last tx %u min ago)\n",
nbr_table_get_lladdr(rpl_parents, p)->u8[7],
p->rank, nbr ? nbr->link_metric : 0,
default_instance->of->calculate_rank(p, 0),
default_instance->current_dag == p->dag ? 'd' : ' ',
p == default_instance->current_dag->preferred_parent ? '*' : ' ',
(unsigned)((now - p->last_tx_time) / (60 * CLOCK_SECOND)));
p = nbr_table_next(rpl_parents, p);
@ -1026,7 +1027,7 @@ rpl_join_instance(uip_ipaddr_t *from, rpl_dio_t *dio)
#if RPL_MAX_DAG_PER_INSTANCE > 1
/*---------------------------------------------------------------------------*/
void
rpl_dag_t *
rpl_add_dag(uip_ipaddr_t *from, rpl_dio_t *dio)
{
rpl_instance_t *instance;
@ -1037,7 +1038,7 @@ rpl_add_dag(uip_ipaddr_t *from, rpl_dio_t *dio)
dag = rpl_alloc_dag(dio->instance_id, &dio->dag_id);
if(dag == NULL) {
PRINTF("RPL: Failed to allocate a DAG object!\n");
return;
return NULL;
}
instance = dag->instance;
@ -1051,7 +1052,7 @@ rpl_add_dag(uip_ipaddr_t *from, rpl_dio_t *dio)
if(p == NULL) {
PRINTF("failed\n");
dag->used = 0;
return;
return NULL;
}
PRINTF("succeeded\n");
} else {
@ -1078,7 +1079,7 @@ rpl_add_dag(uip_ipaddr_t *from, rpl_dio_t *dio)
dio->instance_id);
rpl_remove_parent(p);
dag->used = 0;
return;
return NULL;
}
dag->used = 1;
@ -1104,6 +1105,8 @@ rpl_add_dag(uip_ipaddr_t *from, rpl_dio_t *dio)
rpl_process_parent_event(instance, p);
p->dtsn = dio->dtsn;
return dag;
}
#endif /* RPL_MAX_DAG_PER_INSTANCE > 1 */
@ -1303,8 +1306,11 @@ rpl_process_dio(uip_ipaddr_t *from, rpl_dio_t *dio)
if(dag == NULL) {
#if RPL_MAX_DAG_PER_INSTANCE > 1
PRINTF("RPL: Adding new DAG to known instance.\n");
rpl_add_dag(from, dio);
return;
dag = rpl_add_dag(from, dio);
if(dag == NULL) {
PRINTF("RPL: Failed to add DAG.\n");
return;
}
#else /* RPL_MAX_DAG_PER_INSTANCE > 1 */
PRINTF("RPL: Only one instance supported.\n");
return;