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Merge pull request #233 from cetic/fix-rpl-classic-dodag-root

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Additional cleanup when becoming DODAG Root (rpl-classic)
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Simon Duquennoy 2017-12-12 11:45:48 +01:00 committed by GitHub
commit eeeacadfc8
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2 changed files with 14 additions and 0 deletions
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8
os/net/rpl-classic/rpl-dag.c
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@ -370,6 +370,7 @@ rpl_set_root(uint8_t instance_id, uip_ipaddr_t *dag_id)
}
if(dag == dag->instance->current_dag) {
PRINTF("RPL: Dropping a joined DAG when setting this node as root");
rpl_set_default_route(instance, NULL);
dag->instance->current_dag = NULL;
} else {
PRINTF("RPL: Dropping a DAG when setting this node as root");
@ -665,6 +666,10 @@ rpl_free_dag(rpl_dag_t *dag)
if(RPL_IS_STORING(dag->instance)) {
rpl_remove_routes(dag);
}
/* Stop the DAO retransmit timer */
#if RPL_WITH_DAO_ACK
ctimer_stop(&dag->instance->dao_retransmit_timer);
#endif /* RPL_WITH_DAO_ACK */
/* Remove autoconfigured address */
if((dag->prefix_info.flags & UIP_ND6_RA_FLAG_AUTONOMOUS)) {
@ -1323,6 +1328,9 @@ rpl_local_repair(rpl_instance_t *instance)
/* no downward route anymore */
instance->has_downward_route = 0;
#if RPL_WITH_DAO_ACK
ctimer_stop(&instance->dao_retransmit_timer);
#endif /* RPL_WITH_DAO_ACK */
rpl_reset_dio_timer(instance);
if(RPL_IS_STORING(instance)) {

6
os/net/rpl-classic/rpl-icmp6.c
View File

@ -1282,6 +1282,12 @@ dao_ack_input(void)
parent = NULL;
}
if(instance->current_dag->rank == ROOT_RANK(instance)) {
PRINTF("RPL: DODAG root received a DAO ACK, ignoring it\n");
uip_clear_buf();
return;
}
PRINTF("RPL: Received a DAO %s with sequence number %d (%d) and status %d from ",
status < 128 ? "ACK" : "NACK",
sequence, instance->my_dao_seqno, status);