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added nbr policy for Contiki RPL that avoids thrashing the nbr table with new entries all the time

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This commit is contained in:
Joakim Eriksson 2015-08-20 17:09:32 +02:00
parent d181bd9e6f
commit 3fd8c4db2d
6 changed files with 383 additions and 68 deletions
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28
core/net/rpl/rpl-private.h
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@ -124,8 +124,17 @@
#define RPL_NOPATH_REMOVAL_DELAY 60
#endif /* RPL_CONF_NOPATH_REMOVAL_DELAY */
#ifdef RPL_CONF_DAO_MAX_RETRANSMISSIONS
#define RPL_DAO_MAX_RETRANSMISSIONS RPL_CONF_DAO_MAX_RETRANSMISSIONS
#else
#define RPL_DAO_MAX_RETRANSMISSIONS 5
#endif /* RPL_CONF_DAO_MAX_RETRANSMISSIONS */
#ifdef RPL_CONF_DAO_RETRANSMISSION_TIMEOUT
#define RPL_DAO_RETRANSMISSION_TIMEOUT RPL_CONF_DAO_RETRANSMISSION_TIMEOUT
#else
#define RPL_DAO_RETRANSMISSION_TIMEOUT (5 * CLOCK_SECOND)
#endif /* RPL_CONF_DAO_RETRANSMISSION_TIMEOUT */
/* Special value indicating immediate removal. */
#define RPL_ZERO_LIFETIME 0
@ -260,6 +269,24 @@ typedef struct rpl_stats rpl_stats_t;
extern rpl_stats_t rpl_stats;
#endif
struct nbr_policy {
/** check if it is ok to add a nbr via UC DIS - positive => ok */
int (* check_add_from_dis)(uip_ipaddr_t *from);
int (* check_add_from_dio)(uip_ipaddr_t *from, rpl_dio_t *dio);
int (* check_add_from_dao)(uip_ipaddr_t *from);
};
#ifdef RPL_CONF_NBR_POLICY
#define RPL_NBR_POLICY RPL_CONF_NBR_POLICY
#else /* RPL_CONF_NBR_POLICY */
#define RPL_NBR_POLICY rpl_nbr_policy
#endif /* RPL_CONF_NBR_POLICY */
extern const struct nbr_policy RPL_NBR_POLICY;
/*---------------------------------------------------------------------------*/
/* RPL macros. */
@ -280,6 +307,7 @@ void dao_output(rpl_parent_t *, uint8_t lifetime);
void dao_output_target(rpl_parent_t *, uip_ipaddr_t *, uint8_t lifetime);
void dao_ack_output(rpl_instance_t *, uip_ipaddr_t *, uint8_t, uint8_t);
void rpl_icmp6_register_handlers(void);
uip_ds6_nbr_t *rpl_icmp6_update_nbr_table(uip_ipaddr_t *from);
/* RPL logic functions. */
void rpl_join_dag(uip_ipaddr_t *from, rpl_dio_t *dio);