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Merge pull request #608 from nvt/rpl-fixes

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Minor RPL improvements
This commit is contained in:
Nicolas Tsiftes 2014-04-07 11:13:38 +02:00
parent 1d690995f6 0a202d3952
commit a7dbf46b8e
7 changed files with 34 additions and 28 deletions
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4
core/net/rpl/rpl-dag.c
View file

@ -987,7 +987,7 @@ rpl_add_dag(uip_ipaddr_t *from, rpl_dio_t *dio)
instance->dio_redundancy != dio->dag_redund ||
instance->default_lifetime != dio->default_lifetime ||
instance->lifetime_unit != dio->lifetime_unit) {
PRINTF("RPL: DIO for DAG instance %u uncompatible with previos DIO\n",
PRINTF("RPL: DIO for DAG instance %u incompatible with previous DIO\n",
dio->instance_id);
rpl_remove_parent(p);
dag->used = 0;
@ -1171,7 +1171,7 @@ rpl_process_dio(uip_ipaddr_t *from, rpl_dio_t *dio)
RPL_LOLLIPOP_INCREMENT(dag->version);
rpl_reset_dio_timer(instance);
} else {
PRINTF("RPL: Global Repair\n");
PRINTF("RPL: Global repair\n");
if(dio->prefix_info.length != 0) {
if(dio->prefix_info.flags & UIP_ND6_RA_FLAG_AUTONOMOUS) {
PRINTF("RPL : Prefix announced in DIO\n");

47
core/net/rpl/rpl-icmp6.c
View file

@ -176,12 +176,14 @@ dis_output(uip_ipaddr_t *addr)
unsigned char *buffer;
uip_ipaddr_t tmpaddr;
/* DAG Information Solicitation - 2 bytes reserved */
/* 0 1 2 */
/* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 */
/* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
/* | Flags | Reserved | Option(s)... */
/* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
/*
* DAG Information Solicitation - 2 bytes reserved
* 0 1 2
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Flags | Reserved | Option(s)...
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
buffer = UIP_ICMP_PAYLOAD;
buffer[0] = buffer[1] = 0;
@ -241,7 +243,7 @@ dio_input(void)
PRINTLLADDR((uip_lladdr_t *)packetbuf_addr(PACKETBUF_ADDR_SENDER));
PRINTF("\n");
} else {
PRINTF("RPL: Out of Memory, dropping DIO from ");
PRINTF("RPL: Out of memory, dropping DIO from ");
PRINT6ADDR(&from);
PRINTF(", ");
PRINTLLADDR((uip_lladdr_t *)packetbuf_addr(PACKETBUF_ADDR_SENDER));
@ -383,7 +385,7 @@ dio_input(void)
break;
case RPL_OPTION_PREFIX_INFO:
if(len != 32) {
PRINTF("RPL: DAG prefix info not ok, len != 32\n");
PRINTF("RPL: Invalid DAG prefix info, len != 32\n");
RPL_STAT(rpl_stats.malformed_msgs++);
return;
}
@ -420,7 +422,7 @@ dio_output(rpl_instance_t *instance, uip_ipaddr_t *uc_addr)
#endif /* !RPL_LEAF_ONLY */
#if RPL_LEAF_ONLY
/* In leaf mode, we send DIO message only as unicasts in response to
/* In leaf mode, we only send DIO messages as unicasts in response to
unicast DIS messages. */
if(uc_addr == NULL) {
PRINTF("RPL: LEAF ONLY have multicast addr: skip dio_output\n");
@ -583,10 +585,11 @@ dao_input(void)
int len;
int i;
int learned_from;
rpl_parent_t *p;
rpl_parent_t *parent;
uip_ds6_nbr_t *nbr;
prefixlen = 0;
parent = NULL;
uip_ipaddr_copy(&dao_sender_addr, &UIP_IP_BUF->srcipaddr);
@ -616,15 +619,13 @@ dao_input(void)
sequence = buffer[pos++];
dag = instance->current_dag;
/* Is the DAGID present? */
/* Is the DAG ID present? */
if(flags & RPL_DAO_D_FLAG) {
if(memcmp(&dag->dag_id, &buffer[pos], sizeof(dag->dag_id))) {
PRINTF("RPL: Ignoring a DAO for a DAG different from ours\n");
return;
}
pos += 16;
} else {
/* Perhaps, there are verification to do but ... */
}
learned_from = uip_is_addr_mcast(&dao_sender_addr) ?
@ -634,23 +635,23 @@ dao_input(void)
learned_from == RPL_ROUTE_FROM_UNICAST_DAO? "unicast": "multicast");
if(learned_from == RPL_ROUTE_FROM_UNICAST_DAO) {
/* Check whether this is a DAO forwarding loop. */
p = rpl_find_parent(dag, &dao_sender_addr);
parent = rpl_find_parent(dag, &dao_sender_addr);
/* check if this is a new DAO registration with an "illegal" rank */
/* if we already route to this node it is likely */
if(p != NULL &&
DAG_RANK(p->rank, instance) < DAG_RANK(dag->rank, instance)) {
if(parent != NULL &&
DAG_RANK(parent->rank, instance) < DAG_RANK(dag->rank, instance)) {
PRINTF("RPL: Loop detected when receiving a unicast DAO from a node with a lower rank! (%u < %u)\n",
DAG_RANK(p->rank, instance), DAG_RANK(dag->rank, instance));
p->rank = INFINITE_RANK;
p->updated = 1;
DAG_RANK(parent->rank, instance), DAG_RANK(dag->rank, instance));
parent->rank = INFINITE_RANK;
parent->updated = 1;
return;
}
/* If we get the DAO from our parent, we also have a loop. */
if(p != NULL && p == dag->preferred_parent) {
if(parent != NULL && parent == dag->preferred_parent) {
PRINTF("RPL: Loop detected when receiving a unicast DAO from our parent\n");
p->rank = INFINITE_RANK;
p->updated = 1;
parent->rank = INFINITE_RANK;
parent->updated = 1;
return;
}
}
@ -756,7 +757,7 @@ dao_input(void)
PRINTF("RPL: Neighbor already in neighbor cache\n");
}
rpl_lock_parent(p);
rpl_lock_parent(parent);
rep = rpl_add_route(dag, &prefix, prefixlen, &dao_sender_addr);
if(rep == NULL) {

2
core/net/rpl/rpl-mrhof.c
View file

@ -104,7 +104,7 @@ calculate_path_metric(rpl_parent_t *p)
}
static void
reset(rpl_dag_t *sag)
reset(rpl_dag_t *dag)
{
PRINTF("RPL: Reset MRHOF\n");
}

2
core/net/rpl/rpl-private.h
View file

@ -203,7 +203,7 @@
* whose integer part can be obtained by dividing the value by
* RPL_DAG_MC_ETX_DIVISOR.
*/
#define RPL_DAG_MC_ETX_DIVISOR 128
#define RPL_DAG_MC_ETX_DIVISOR 256
/* DIS related */
#define RPL_DIS_SEND 1

2
core/net/rpl/rpl-timers.c
View file

@ -70,7 +70,7 @@ handle_periodic_timer(void *ptr)
rpl_recalculate_ranks();
/* handle DIS */
#ifdef RPL_DIS_SEND
#if RPL_DIS_SEND
next_dis++;
if(rpl_get_any_dag() == NULL && next_dis >= RPL_DIS_INTERVAL) {
next_dis = 0;

2
core/net/rpl/rpl.c
View file

@ -308,6 +308,8 @@ rpl_init(void)
#if RPL_CONF_STATS
memset(&rpl_stats, 0, sizeof(rpl_stats));
#endif
RPL_OF.reset(NULL);
}
/*---------------------------------------------------------------------------*/
#endif /* UIP_CONF_IPV6 */

3
core/net/rpl/rpl.h
View file

@ -189,6 +189,9 @@ struct rpl_of {
rpl_ocp_t ocp;
};
typedef struct rpl_of rpl_of_t;
/* Declare the selected objective function. */
extern rpl_of_t RPL_OF;
/*---------------------------------------------------------------------------*/
/* Instance */
struct rpl_instance {