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Merge pull request #1016 from cetic/pr-cleanup-dodag-when-root

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Remove all the DODAG from the instance when the node is set as Root
This commit is contained in:
Nicolas Tsiftes 2015-05-10 17:15:25 +02:00
commit 71427ed4cc
1 changed files with 18 additions and 8 deletions
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26
core/net/rpl/rpl-dag.c
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@ -269,17 +269,27 @@ rpl_set_root(uint8_t instance_id, uip_ipaddr_t *dag_id)
rpl_dag_t *dag;
rpl_instance_t *instance;
uint8_t version;
int i;
version = RPL_LOLLIPOP_INIT;
dag = get_dag(instance_id, dag_id);
if(dag != NULL) {
version = dag->version;
RPL_LOLLIPOP_INCREMENT(version);
PRINTF("RPL: Dropping a joined DAG when setting this node as root");
if(dag == dag->instance->current_dag) {
dag->instance->current_dag = NULL;
instance = rpl_get_instance(instance_id);
if(instance != NULL) {
for(i = 0; i < RPL_MAX_DAG_PER_INSTANCE; ++i) {
dag = &instance->dag_table[i];
if(dag->used) {
if(uip_ipaddr_cmp(&dag->dag_id, dag_id)) {
version = dag->version;
RPL_LOLLIPOP_INCREMENT(version);
}
if(dag == dag->instance->current_dag) {
PRINTF("RPL: Dropping a joined DAG when setting this node as root");
dag->instance->current_dag = NULL;
} else {
PRINTF("RPL: Dropping a DAG when setting this node as root");
}
rpl_free_dag(dag);
}
}
rpl_free_dag(dag);
}
dag = rpl_alloc_dag(instance_id, dag_id);