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* Some more debug printfs. 

* Correct hop_count when an existing route is found.
This commit is contained in:
bg- 2007-04-24 16:08:10 +00:00
parent a07a39d3c2
commit 42fe071745
1 changed files with 23 additions and 8 deletions
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31
core/net/uaodv.c
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@ -28,7 +28,7 @@
* *
* This file is part of the Contiki operating system. * This file is part of the Contiki operating system.
* *
* $Id: uaodv.c,v 1.8 2007/04/18 21:26:09 oliverschmidt Exp $ * $Id: uaodv.c,v 1.9 2007/04/24 16:08:10 bg- Exp $
*/ */
/** /**
@ -145,6 +145,8 @@ send_rreq(uip_ipaddr_t *addr)
{ {
struct uaodv_msg_rreq *rm = (struct uaodv_msg_rreq *)uip_appdata; struct uaodv_msg_rreq *rm = (struct uaodv_msg_rreq *)uip_appdata;
print_debug("send RREQ for %d.%d.%d.%d\n", uip_ipaddr_to_quad(addr));
rm->type = UAODV_RREQ_TYPE; rm->type = UAODV_RREQ_TYPE;
rm->flags = UAODV_RREQ_UNKSEQNO; rm->flags = UAODV_RREQ_UNKSEQNO;
rm->reserved = 0; rm->reserved = 0;
@ -159,16 +161,20 @@ send_rreq(uip_ipaddr_t *addr)
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
static void static void
send_rrep(uip_ipaddr_t *dest, uip_ipaddr_t *nexthop, uip_ipaddr_t *orig, u32_t seqno) send_rrep(uip_ipaddr_t *dest, uip_ipaddr_t *nexthop, uip_ipaddr_t *orig,
u32_t *seqno, unsigned hop_count)
{ {
struct uaodv_msg_rrep *rm = (struct uaodv_msg_rrep *)uip_appdata; struct uaodv_msg_rrep *rm = (struct uaodv_msg_rrep *)uip_appdata;
print_debug("send RREP orig=%d.%d.%d.%d hops=%d\n",
uip_ipaddr_to_quad(orig), hop_count);
rm->type = UAODV_RREP_TYPE; rm->type = UAODV_RREP_TYPE;
rm->flags = 0; rm->flags = 0;
rm->reserved = 0; rm->reserved = 0;
rm->hop_count = 0; rm->hop_count = hop_count;
uip_ipaddr_copy(&rm->orig_addr, orig); uip_ipaddr_copy(&rm->orig_addr, orig);
rm->dest_seqno = htonl(seqno); rm->dest_seqno = htonl(*seqno);
uip_ipaddr_copy(&rm->dest_addr, dest); uip_ipaddr_copy(&rm->dest_addr, dest);
rm->lifetime = HTONL(MY_ROUTE_TIMEOUT); rm->lifetime = HTONL(MY_ROUTE_TIMEOUT);
sendto(nexthop, rm, sizeof(struct uaodv_msg_rrep)); sendto(nexthop, rm, sizeof(struct uaodv_msg_rrep));
@ -244,7 +250,8 @@ handle_incoming_rreq(void)
/* Check if it is for our address or an existing route. */ /* Check if it is for our address or an existing route. */
if(uip_ipaddr_cmp(&rm->dest_addr, &uip_hostaddr) if(uip_ipaddr_cmp(&rm->dest_addr, &uip_hostaddr)
|| (fw = uaodv_rt_lookup(&rm->dest_addr)) != NULL) { || (fw = uaodv_rt_lookup(&rm->dest_addr)) != NULL) {
print_debug("RREQ for our address! rt=%p\n", rt); print_debug("RREQ for known address %d.%d.%d.%d\n",
uip_ipaddr_to_quad(&rm->dest_addr));
/* Send an RREP back to the source of the RREQ. */ /* Send an RREP back to the source of the RREQ. */
uip_ipaddr_copy(&dest_addr, &rm->dest_addr); uip_ipaddr_copy(&dest_addr, &rm->dest_addr);
uip_ipaddr_copy(&orig_addr, &rm->orig_addr); uip_ipaddr_copy(&orig_addr, &rm->orig_addr);
@ -253,10 +260,11 @@ handle_incoming_rreq(void)
cc2420_recv_ok(&rt->nexthop); cc2420_recv_ok(&rt->nexthop);
#endif #endif
if(fw != NULL) /* Existing route. */ if(fw != NULL) /* Existing route. */
send_rrep(&dest_addr, &rt->nexthop, &orig_addr, fw->seqno); send_rrep(&dest_addr, &rt->nexthop, &orig_addr,
&fw->seqno, fw->hop_count + 1);
else { else {
rreq_seqno++; /* XXX Not really always. */ rreq_seqno++; /* XXX Not really always. */
send_rrep(&dest_addr, &rt->nexthop, &orig_addr, rreq_seqno); send_rrep(&dest_addr, &rt->nexthop, &orig_addr, &rreq_seqno, 0);
} }
} else { } else {
print_debug("RREQ for %d.%d.%d.%d orig %d.%d.%d.%d ttl=%d\n", print_debug("RREQ for %d.%d.%d.%d orig %d.%d.%d.%d ttl=%d\n",
@ -278,7 +286,8 @@ handle_incoming_rrep(void)
rt = uaodv_rt_lookup(&rm->dest_addr); rt = uaodv_rt_lookup(&rm->dest_addr);
print_debug("RREP received rt=%p\n", rt); print_debug("RREP received dst=%d.%d.%d.%d rt=%p\n",
uip_ipaddr_to_quad(&rm->dest_addr), rt);
/* New forward route? */ /* New forward route? */
if(rt == NULL || (SCMP32(ntohl(rm->dest_seqno), rt->seqno) > 0)) { if(rt == NULL || (SCMP32(ntohl(rm->dest_seqno), rt->seqno) > 0)) {
@ -309,6 +318,12 @@ handle_incoming_rrep(void)
if(uip_ipaddr_cmp(&rm->orig_addr, &uip_hostaddr)) { if(uip_ipaddr_cmp(&rm->orig_addr, &uip_hostaddr)) {
print_debug("------- COMPLETE ROUTE FOUND\n"); print_debug("------- COMPLETE ROUTE FOUND\n");
} else { } else {
if(uip_ipaddr_cmp(&((struct uip_udpip_hdr*)&uip_buf[UIP_LLH_LEN])->destipaddr,
&uip_broadcast_addr)) {
print_debug("RREP hello received?\n");
return;
}
rt = uaodv_rt_lookup(&rm->orig_addr); rt = uaodv_rt_lookup(&rm->orig_addr);
if(rt == NULL) { if(rt == NULL) {