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Make DODAG ID selection RFC 6550-compliant

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Some calls to `rpl_set_root` select a hardcoded DODAG ID
(0x1111, 0x1100, 0, 0, 0, 0, 0, 0x0011)

This is against what RFC 6550 says. We change these calls
to select a DODAG ID corresponding to a routable v6 address
corresponding to the root
This commit is contained in:
George Oikonomou 2014-06-12 00:09:53 +01:00
parent 32bc98b0da
commit a9e7bea675
2 changed files with 14 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

16
examples/ipv6/rpl-border-router/border-router.c
View file

@ -54,8 +54,6 @@
#define DEBUG DEBUG_NONE
#include "net/ip/uip-debug.h"
uint16_t dag_id[] = {0x1111, 0x1100, 0, 0, 0, 0, 0, 0x0011};
static uip_ipaddr_t prefix;
static uint8_t prefix_set;
@ -320,18 +318,24 @@ request_prefix(void)
void
set_prefix_64(uip_ipaddr_t *prefix_64)
{
rpl_dag_t *dag;
uip_ipaddr_t ipaddr;
memcpy(&prefix, prefix_64, 16);
memcpy(&ipaddr, prefix_64, 16);
prefix_set = 1;
uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
uip_ds6_addr_add(&ipaddr, 0, ADDR_AUTOCONF);
dag = rpl_set_root(RPL_DEFAULT_INSTANCE, &ipaddr);
if(dag != NULL) {
rpl_set_prefix(dag, &prefix, 64);
PRINTF("created a new RPL dag\n");
}
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(border_router_process, ev, data)
{
static struct etimer et;
rpl_dag_t *dag;
PROCESS_BEGIN();
@ -363,12 +367,6 @@ PROCESS_THREAD(border_router_process, ev, data)
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
}
dag = rpl_set_root(RPL_DEFAULT_INSTANCE,(uip_ip6addr_t *)dag_id);
if(dag != NULL) {
rpl_set_prefix(dag, &prefix, 64);
PRINTF("created a new RPL dag\n");
}
/* Now turn the radio on, but disable radio duty cycling.
* Since we are the DAG root, reception delays would constrain mesh throughbut.
*/