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uIP over uAODV simple radio driver

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fros4943 2007-05-19 14:25:43 +00:00
parent 1e372f13c6
commit 841cbd1b99
3 changed files with 309 additions and 0 deletions
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59
platform/cooja/init-net-uip-uaodv.c Normal file
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/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: init-net-uip-uaodv.c,v 1.1 2007/05/19 14:25:43 fros4943 Exp $
*/
#include "contiki.h"
#include "net/uip.h"
#include "net/uip-fw.h"
#include "net/uip-fw-service.h"
#include "net/radio-uip-uaodv.h"
#include "dev/cooja-radio.h"
#include "net/uaodv.h"
/* Default network interface */
static struct uip_fw_netif radioif =
{UIP_FW_NETIF(0,0,0,0, 0,0,0,0, radio_uip_uaodv_send)};
void
init_net(void)
{
uip_init();
uip_fw_init();
process_start(&tcpip_process, NULL);
process_start(&uip_fw_process, NULL);
process_start(&uaodv_process, NULL);
uip_fw_default(&radioif);
radio_uip_uaodv_init(&cooja_driver);
}

204
platform/cooja/net/radio-uip-uaodv.c Normal file
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/*
* Copyright (c) 2007, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: radio-uip-uaodv.c,v 1.1 2007/05/19 14:25:43 fros4943 Exp $
*/
#include "radio-uip-uaodv.h"
#include "net/hc.h"
#include "net/uip.h"
#include "net/uaodv.h"
#include "net/uaodv-rt.h"
#include "net/uaodv-def.h"
#include <string.h>
#include <stdio.h>
static const struct radio_driver *radio;
#define uip_udp_sender() (&((struct uip_udpip_hdr *)&uip_buf[UIP_LLH_LEN])->srcipaddr)
#define HEADER_ID_LENGTH strlen(uniqueID)
#define HEADER_NEXT_FWD HEADER_ID_LENGTH
#define HEADER_LENGTH HEADER_NEXT_FWD + 4
static char* uniqueID = "fWd:";
static struct uaodv_rt_entry *route;
/*---------------------------------------------------------------------------*/
int radio_uip_uaodv_add_header(u8_t *buf, int len, uip_ipaddr_t *addr);
int radio_uip_uaodv_remove_header(u8_t *buf, int len);
void radio_uip_uaodv_change_header(u8_t *buf, int len, uip_ipaddr_t *addr);
int radio_uip_uaodv_header_exists(u8_t *buf, int len);
int radio_uip_uaodv_is_broadcast(uip_ipaddr_t *addr);
int radio_uip_uaodv_fwd_is_broadcast(u8_t *buf, int len);
int radio_uip_uaodv_fwd_is_me(u8_t *buf, int len);
int radio_uip_uaodv_dest_is_me(u8_t *buf, int len);
int radio_uip_uaodv_dest_port(u8_t *buf, int len);
/*---------------------------------------------------------------------------*/
static void
receiver(const struct radio_driver *d)
{
uip_len = d->read(&uip_buf[UIP_LLH_LEN], UIP_BUFSIZE - UIP_LLH_LEN);
if (uip_len <= 0) {
return;
}
/* If no uAODV header, receive as usual */
if (!radio_uip_uaodv_header_exists(&uip_buf[UIP_LLH_LEN], uip_len)) {
uip_len = hc_inflate(&uip_buf[UIP_LLH_LEN], uip_len);
tcpip_input();
return;
}
/* If broadcast packet, strip header and receive without forwarding */
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);
tcpip_input();
return;
}
/* Drop packet unless we are the uAODV forwarder */
if (!radio_uip_uaodv_fwd_is_me(&uip_buf[UIP_LLH_LEN], uip_len)) {
return;
}
/* If we are final destination, strip header and receive */
if (radio_uip_uaodv_dest_is_me(&uip_buf[UIP_LLH_LEN], uip_len)) {
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);
tcpip_input();
return;
}
/* Find new uAODV forwarder and forward packet */
/* TODO TTL? Hop-count? */
/* TODO Assuming uAODV already knows a path */
route = uaodv_rt_lookup((&((struct uip_udpip_hdr *)&uip_buf[UIP_LLH_LEN + HEADER_LENGTH])->destipaddr));
if (route != NULL) {
radio_uip_uaodv_change_header(&uip_buf[UIP_LLH_LEN], uip_len, &route->nexthop);
d->send(&uip_buf[UIP_LLH_LEN], uip_len);
}
}
/*---------------------------------------------------------------------------*/
u8_t
radio_uip_uaodv_send(void)
{
/* uAODV process messages should be sent as usual */
if (radio_uip_uaodv_dest_port(&uip_buf[UIP_LLH_LEN], uip_len) == HTONS(UAODV_UDPPORT)) {
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);
/* 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);
/* Fetch uAODV route (must be prepared!) */
route = uaodv_rt_lookup((&((struct uip_udpip_hdr *)&uip_buf[UIP_LLH_LEN])->destipaddr));
if (route == NULL) return UIP_FW_NOROUTE;
uip_len = radio_uip_uaodv_add_header(&uip_buf[UIP_LLH_LEN], uip_len, &route->nexthop); /* TODO Correct? */
}
return radio->send(&uip_buf[UIP_LLH_LEN], uip_len);
}
/*---------------------------------------------------------------------------*/
void
radio_uip_uaodv_init(const struct radio_driver *d)
{
radio = d;
radio->set_receive_function(receiver);
radio->on();}
/*---------------------------------------------------------------------------*/
int
radio_uip_uaodv_add_header(u8_t *buf, int len, uip_ipaddr_t *addr)
{
memcpy(&buf[HEADER_LENGTH], buf, len);
memcpy(buf, uniqueID, HEADER_ID_LENGTH);
memcpy(&buf[HEADER_NEXT_FWD], (char*)addr, 4);
return HEADER_LENGTH + len;
}
/*---------------------------------------------------------------------------*/
int
radio_uip_uaodv_remove_header(u8_t *buf, int len)
{
memcpy(buf, &buf[HEADER_LENGTH], len);
return HEADER_LENGTH + len;
return len - HEADER_LENGTH;
}
/*---------------------------------------------------------------------------*/
void
radio_uip_uaodv_change_header(u8_t *buf, int len, uip_ipaddr_t *addr)
{
memcpy(&buf[HEADER_NEXT_FWD], addr, 4);
}
/*---------------------------------------------------------------------------*/
int
radio_uip_uaodv_header_exists(u8_t *buf, int len)
{
return !memcmp(buf, uniqueID, HEADER_ID_LENGTH);
}
/*---------------------------------------------------------------------------*/
int
radio_uip_uaodv_is_broadcast(uip_ipaddr_t *addr)
{
return ((u8_t*)addr)[3] == 255; /* TODO Only comparing with the last */
}
/*---------------------------------------------------------------------------*/
int
radio_uip_uaodv_fwd_is_broadcast(u8_t *buf, int len)
{
return radio_uip_uaodv_is_broadcast((uip_ipaddr_t*) &buf[HEADER_NEXT_FWD]);
}
/*---------------------------------------------------------------------------*/
int
radio_uip_uaodv_fwd_is_me(u8_t *buf, int len)
{
return !memcmp(&buf[HEADER_NEXT_FWD], &uip_hostaddr, 4);
}
/*---------------------------------------------------------------------------*/
int
radio_uip_uaodv_dest_is_me(u8_t *buf, int len)
{
return !memcmp((&((struct uip_udpip_hdr *)&buf[HEADER_LENGTH])->destipaddr), &uip_hostaddr, 4);
}
/*---------------------------------------------------------------------------*/
int
radio_uip_uaodv_dest_port(u8_t *buf, int len)
{
return (int) ((struct uip_udpip_hdr *)buf)->destport;
}
/*---------------------------------------------------------------------------*/

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platform/cooja/net/radio-uip-uaodv.h Normal file
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/*
* Copyright (c) 2007, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: radio-uip-uaodv.h,v 1.1 2007/05/19 14:25:43 fros4943 Exp $
*/
#ifndef __RADIO_UIP_UAODV_H__
#define __RADIO_UIP_UAODV_H__
#include "contiki.h"
#include "dev/radio.h"
void
radio_uip_uaodv_init(const struct radio_driver *d);
u8_t
radio_uip_uaodv_send(void);
#endif /* __RADIO_UIP_UAODV_H__ */