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Validate incoming DTSN value

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This commit is contained in:
nvt-se 2010-06-07 13:40:05 +00:00
parent e5fd1f47fa
commit c6c6760838
1 changed files with 4 additions and 2 deletions
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6
core/net/rpl/rpl-dag.c
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@ -32,7 +32,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rpl-dag.c,v 1.20 2010/06/07 11:36:02 nvt-se Exp $
* $Id: rpl-dag.c,v 1.21 2010/06/07 13:40:05 nvt-se Exp $
*/
/**
* \file
@ -545,7 +545,9 @@ rpl_process_dio(uip_ipaddr_t *from, rpl_dio_t *dio)
return;
}
dag->dtsn = dio->dtsn;
if(dag->rank != ROOT_RANK && dag->dtsn < dio->dtsn || dag->dtsn == ~0) {
dag->dtsn = dio->dtsn;
}
/* This DIO pertains to a DAG that we are already part of. */
p = rpl_find_parent(dag, from);