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Added support for end-to-end DAO ACK for Contiki RPL.

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This is a fix for Contiki RPL so that it fully supports DAO ACK in
an end-to-end fashion. When DAO is sent it will be forwarded upwards
as before. DAO ACK will be forwarded downwards until it reach the node
that initiated the DAO ACK and unlike before it is not a single-hop
DAO ACK but it is fully reaching the RPL ROOT before any DAO ACK is
sent back. DAO ACK also now fully support different status messages
(success / fail).
This commit is contained in:
Joakim Eriksson 2015-08-19 15:50:20 +02:00
parent 3b9fa19a66
commit 946be77248
9 changed files with 316 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

12
core/net/rpl/rpl-private.h
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@ -90,6 +90,13 @@
#define RPL_DAO_K_FLAG 0x80 /* DAO ACK requested */
#define RPL_DAO_D_FLAG 0x40 /* DODAG ID present */
#define RPL_DAO_ACK_UNCONDITIONAL_ACCEPT 0
#define RPL_DAO_ACK_ACCEPT 1 /* 1 - 127 is OK but not good */
#define RPL_DAO_ACK_UNABLE_TO_ACCEPT 128 /* >127 is fail */
#define RPL_DAO_ACK_TIMEOUT -1
/*---------------------------------------------------------------------------*/
/* RPL IPv6 extension header option. */
#define RPL_HDR_OPT_LEN 4
@ -117,6 +124,9 @@
#define RPL_NOPATH_REMOVAL_DELAY 60
#endif /* RPL_CONF_NOPATH_REMOVAL_DELAY */
#define RPL_DAO_MAX_RETRANSMISSIONS 5
#define RPL_DAO_RETRANSMISSION_TIMEOUT (5 * CLOCK_SECOND)
/* Special value indicating immediate removal. */
#define RPL_ZERO_LIFETIME 0
@ -268,7 +278,7 @@ void dis_output(uip_ipaddr_t *addr);
void dio_output(rpl_instance_t *, uip_ipaddr_t *uc_addr);
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);
void dao_ack_output(rpl_instance_t *, uip_ipaddr_t *, uint8_t, uint8_t);
void rpl_icmp6_register_handlers(void);
/* RPL logic functions. */