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Implement RPL non-storing mode

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This commit is contained in:
Simon Duquennoy 2016-02-01 18:02:33 +01:00
parent d14b76d869
commit b3e31e1456
17 changed files with 1149 additions and 278 deletions
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26
core/net/ip/tcpip.c
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@ -47,6 +47,11 @@
#include "net/ipv6/uip-ds6.h"
#endif
#if UIP_CONF_IPV6_RPL
#include "net/rpl/rpl.h"
#include "net/rpl/rpl-private.h"
#endif
#include <string.h>
#define DEBUG DEBUG_NONE
@ -525,7 +530,7 @@ void
tcpip_ipv6_output(void)
{
uip_ds6_nbr_t *nbr = NULL;
uip_ipaddr_t *nexthop;
uip_ipaddr_t *nexthop = NULL;
if(uip_len == 0) {
return;
@ -545,14 +550,25 @@ tcpip_ipv6_output(void)
if(!uip_is_addr_mcast(&UIP_IP_BUF->destipaddr)) {
/* Next hop determination */
#if UIP_CONF_IPV6_RPL && RPL_WITH_NON_STORING
uip_ipaddr_t ipaddr;
/* Look for a RPL Source Route */
if(rpl_srh_get_next_hop(&ipaddr)) {
nexthop = &ipaddr;
}
#endif /* UIP_CONF_IPV6_RPL && RPL_WITH_NON_STORING */
nbr = NULL;
/* We first check if the destination address is on our immediate
link. If so, we simply use the destination address as our
nexthop address. */
if(uip_ds6_is_addr_onlink(&UIP_IP_BUF->destipaddr)){
if(nexthop == NULL && uip_ds6_is_addr_onlink(&UIP_IP_BUF->destipaddr)){
nexthop = &UIP_IP_BUF->destipaddr;
} else {
}
if(nexthop == NULL) {
uip_ds6_route_t *route;
/* Check if we have a route to the destination address. */
route = uip_ds6_route_lookup(&UIP_IP_BUF->destipaddr);
@ -636,7 +652,7 @@ tcpip_ipv6_output(void)
/* End of next hop determination */
#if UIP_CONF_IPV6_RPL
if(rpl_update_header_final(nexthop)) {
if(!rpl_finalize_header(nexthop)) {
uip_clear_buf();
return;
}
@ -646,6 +662,7 @@ tcpip_ipv6_output(void)
#if UIP_ND6_SEND_NA
if((nbr = uip_ds6_nbr_add(nexthop, NULL, 0, NBR_INCOMPLETE, NBR_TABLE_REASON_IPV6_ND, NULL)) == NULL) {
uip_clear_buf();
PRINTF("tcpip_ipv6_output: failed to add neighbor to cache\n");
return;
} else {
#if UIP_CONF_IPV6_QUEUE_PKT
@ -672,6 +689,7 @@ tcpip_ipv6_output(void)
/* Send the first NS try from here (multicast destination IP address). */
}
#else /* UIP_ND6_SEND_NA */
PRINTF("tcpip_ipv6_output: neighbor not in cache\n");
uip_len = 0;
return;
#endif /* UIP_ND6_SEND_NA */