deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

storing ack destination + removed header compression

Browse source
This commit is contained in:
fros4943 2007-07-16 07:40:55 +00:00
parent 3b41fc0a7c
commit 55443a148a
1 changed files with 19 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

34
platform/cooja/net/radio-uip-uaodv.c
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: radio-uip-uaodv.c,v 1.2 2007/07/11 15:23:42 fros4943 Exp $
* @(#)$Id: radio-uip-uaodv.c,v 1.3 2007/07/16 07:40:55 fros4943 Exp $
*/
#include "radio-uip-uaodv.h"
@ -66,6 +66,7 @@ struct bufferedPacket {
u8_t resends;
u8_t acked;
u16_t crc;
uip_ipaddr_t finaldest;
struct etimer etimer;
};
@ -87,7 +88,7 @@ static struct uaodv_rt_entry *route;
/*---------------------------------------------------------------------------*/
#if UNICAST_ACKED
int radio_uip_wait_for_ack(u8_t *buf, int len);
int radio_uip_wait_for_ack(u8_t *buf, int len, uip_ipaddr_t *dest);
int radio_uip_is_ack(u8_t *buf, int len);
#endif
int radio_uip_uaodv_add_header(u8_t *buf, int len, uip_ipaddr_t *addr);
@ -141,9 +142,10 @@ PROCESS_THREAD(radio_uip_ack_process, ev, data)
etimer_restart(&bufPacket->etimer);
} else {
/* Too many resends, give up */
/* TODO: Report non-delivered packet with bad dest? */
uaodv_bad_dest(&bufPacket->finaldest);
list_remove(bufferedPackets, bufPacket);
memb_free(&bufferedPacketsMEMB, bufPacket);
/* TODO: Report non-delivered packet */
}
}
}
@ -186,7 +188,7 @@ receiver(const struct radio_driver *d)
/* If no uAODV header, receive as usual (compatibility) */
if (!radio_uip_uaodv_header_exists(&uip_buf[UIP_LLH_LEN], uip_len)) {
uip_len = hc_inflate(&uip_buf[UIP_LLH_LEN], uip_len);
//uip_len = hc_inflate(&uip_buf[UIP_LLH_LEN], uip_len);
tcpip_input();
return;
}
@ -195,7 +197,7 @@ receiver(const struct radio_driver *d)
if (radio_uip_uaodv_fwd_is_broadcast(&uip_buf[UIP_LLH_LEN], uip_len)) {
/* Strip header and receive */
uip_len = radio_uip_uaodv_remove_header(&uip_buf[UIP_LLH_LEN], uip_len);
uip_len = hc_inflate(&uip_buf[UIP_LLH_LEN], uip_len);
//uip_len = hc_inflate(&uip_buf[UIP_LLH_LEN], uip_len);
tcpip_input();
return;
}
@ -218,7 +220,7 @@ receiver(const struct radio_driver *d)
#endif
uip_len = radio_uip_uaodv_remove_header(&uip_buf[UIP_LLH_LEN], uip_len);
uip_len = hc_inflate(&uip_buf[UIP_LLH_LEN], uip_len);
//uip_len = hc_inflate(&uip_buf[UIP_LLH_LEN], uip_len);
tcpip_input();
return;
}
@ -242,7 +244,7 @@ receiver(const struct radio_driver *d)
#if UNICAST_ACKED
/* Wait for ack from next forwarded */
radio_uip_wait_for_ack(&uip_buf[UIP_LLH_LEN], uip_len);
radio_uip_wait_for_ack(&uip_buf[UIP_LLH_LEN], uip_len, &route->dest);
#endif
d->send(&uip_buf[UIP_LLH_LEN], uip_len);
@ -261,25 +263,26 @@ radio_uip_uaodv_send(void)
if (radio_uip_uaodv_dest_port(&uip_buf[UIP_LLH_LEN], uip_len) == HTONS(UAODV_UDPPORT)) {
struct uaodv_msg *m = (struct uaodv_msg *)&uip_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN];
if (m->type == UAODV_RREQ_TYPE) {
uip_len = hc_compress(&uip_buf[UIP_LLH_LEN], uip_len);
//uip_len = hc_compress(&uip_buf[UIP_LLH_LEN], uip_len);
return radio->send(&uip_buf[UIP_LLH_LEN], uip_len);
}
/* uAODV RREP and RERR messages should be acked */
#if UNICAST_ACKED
radio_uip_wait_for_ack(&uip_buf[UIP_LLH_LEN], uip_len);
/* uAODV RREP and RERR messages should be acked */
radio_uip_wait_for_ack(&uip_buf[UIP_LLH_LEN], uip_len, &((struct uip_udpip_hdr *)&uip_buf[UIP_LLH_LEN])->destipaddr);
#endif
uip_len = hc_compress(&uip_buf[UIP_LLH_LEN], uip_len);
//uip_len = hc_compress(&uip_buf[UIP_LLH_LEN], uip_len);
return radio->send(&uip_buf[UIP_LLH_LEN], uip_len);
}
if (radio_uip_uaodv_is_broadcast(uip_udp_sender())) {
uip_len = hc_compress(&uip_buf[UIP_LLH_LEN], uip_len);
//uip_len = hc_compress(&uip_buf[UIP_LLH_LEN], uip_len);
/* We can use the broadcast address immediately */
uip_len = radio_uip_uaodv_add_header(&uip_buf[UIP_LLH_LEN], uip_len, uip_udp_sender()); /* TODO Correct? */
} else {
uip_len = hc_compress(&uip_buf[UIP_LLH_LEN], uip_len);
//uip_len = hc_compress(&uip_buf[UIP_LLH_LEN], uip_len);
/* Fetch uAODV route (must be prepared!) */
route = uaodv_rt_lookup((&((struct uip_udpip_hdr *)&uip_buf[UIP_LLH_LEN])->destipaddr));
@ -288,7 +291,7 @@ radio_uip_uaodv_send(void)
#if UNICAST_ACKED
/* We expect to get an ack for this unicast packet */
radio_uip_wait_for_ack(&uip_buf[UIP_LLH_LEN], uip_len);
radio_uip_wait_for_ack(&uip_buf[UIP_LLH_LEN], uip_len, &route->dest);
#endif
}
@ -323,7 +326,7 @@ radio_uip_calc_crc(u8_t *buf, int len)
}
/*---------------------------------------------------------------------------*/
int
radio_uip_wait_for_ack(u8_t *buf, int len)
radio_uip_wait_for_ack(u8_t *buf, int len, uip_ipaddr_t *dest)
{
struct bufferedPacket *bufPacket;
@ -338,6 +341,7 @@ radio_uip_wait_for_ack(u8_t *buf, int len)
bufPacket->len = len;
bufPacket->resends = 0;
bufPacket->acked = 0;
memcpy(&bufPacket->finaldest, dest, 4);
bufPacket->crc = radio_uip_calc_crc(&uip_buf[UIP_LLH_LEN], uip_len);
PROCESS_CONTEXT_BEGIN(&radio_uip_ack_process);
etimer_set(&bufPacket->etimer, CLOCK_SECOND * 1);