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Reject parents with invalid rank

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This commit is contained in:
Laurent Deru 2016-03-16 13:12:20 +01:00
parent c1f11cfaa9
commit f9ffa252f6
1 changed files with 4 additions and 1 deletions
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5
core/net/rpl/rpl-dag.c
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@ -865,7 +865,10 @@ best_parent(rpl_dag_t *dag, int fresh_only)
for(p = nbr_table_head(rpl_parents); p != NULL; p = nbr_table_next(rpl_parents, p)) { for(p = nbr_table_head(rpl_parents); p != NULL; p = nbr_table_next(rpl_parents, p)) {
/* Exclude parents from other DAGs or announcing an infinite rank */ /* Exclude parents from other DAGs or announcing an infinite rank */
if(p->dag != dag || p->rank == INFINITE_RANK) { if(p->dag != dag || p->rank == INFINITE_RANK || p->rank < ROOT_RANK(dag->instance)) {
if(p->rank < ROOT_RANK(dag->instance)) {
PRINTF("RPL: Parent has invalid rank\n");
}
continue; continue;
} }