added multihop routing support through replaceable modules. first implementation
uses rime's route discovery by translating between ipv6 and rime addresses.
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nvt-se
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1
core/net/routing/Makefile.routing
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1
core/net/routing/Makefile.routing
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CONTIKI_SOURCEFILES += rimeroute.c
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183
core/net/routing/rimeroute.c
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core/net/routing/rimeroute.c
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/**
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* \addtogroup uip6
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* @{
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*/
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/*
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* Copyright (c) 2009, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: rimeroute.c,v 1.1 2009/04/06 13:11:25 nvt-se Exp $
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*/
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/**
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* \file
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* A routing module for uip6 that uses Rime's routing.
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*
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* \author Nicolas Tsiftes <nvt@sics.se>
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*/
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#include <string.h>
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#include "net/tcpip.h"
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#include "net/uip.h"
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#include "net/uip-netif.h"
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#include "net/rime.h"
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#include "net/sicslowpan.h"
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#include "net/rime/route.h"
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#define DEBUG 0
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#if DEBUG
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#include <stdio.h>
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#define PRINTF(...) printf(__VA_ARGS__)
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#define PRINT6ADDR(addr) PRINTF(" %02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x ", ((u8_t *)addr)[0], ((u8_t *)addr)[1], ((u8_t *)addr)[2], ((u8_t *)addr)[3], ((u8_t *)addr)[4], ((u8_t *)addr)[5], ((u8_t *)addr)[6], ((u8_t *)addr)[7], ((u8_t *)addr)[8], ((u8_t *)addr)[9], ((u8_t *)addr)[10], ((u8_t *)addr)[11], ((u8_t *)addr)[12], ((u8_t *)addr)[13], ((u8_t *)addr)[14], ((u8_t *)addr)[15])
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#define PRINTLLADDR(lladdr) PRINTF(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",lladdr->addr[0], lladdr->addr[1], lladdr->addr[2], lladdr->addr[3],lladdr->addr[4], lladdr->addr[5],lladdr->addr[6], lladdr->addr[7])
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#define PRINTRIMEADDR(addr) PRINTF(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",addr->u8[0], addr->u8[1], addr->u8[2], addr->u8[3],addr->u8[4], addr->u8[5],addr->u8[6], addr->u8[7])
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#else
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#define PRINTF(...)
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#define PRINT6ADDR(addr)
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#define PRINTLLADDR(lladdr)
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#define PRINTRIMEADDR(addr)
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#endif /* DEBUG == 1*/
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#if UIP_LOGGING
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#include <stdio.h>
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void uip_log(char *msg);
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#define UIP_LOG(m) uip_log(m)
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#else
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#define UIP_LOG(m)
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#endif /* UIP_LOGGING == 1 */
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#define ROUTE_DISCOVERY_CHANNELS 70
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#define PACKET_TIMEOUT (CLOCK_SECOND * 10)
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static void found_route(struct route_discovery_conn *, rimeaddr_t *);
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static void route_timed_out(struct route_discovery_conn *);
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static int activate(void);
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static int deactivate(void);
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static uip_ipaddr_t *lookup(uip_ipaddr_t *, uip_ipaddr_t *);
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const struct uip_router rimeroute = { activate, deactivate, lookup };
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static const struct route_discovery_callbacks route_discovery_callbacks =
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{ found_route, route_timed_out };
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static process_event_t rimeroute_event;
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PROCESS(rimeroute_process, "UIP6 rime router");
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PROCESS_THREAD(rimeroute_process, ev, data)
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{
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static struct route_discovery_conn route_discovery_conn;
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rimeaddr_t *dest;
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PROCESS_BEGIN();
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rimeroute_event = process_alloc_event();
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route_discovery_open(&route_discovery_conn,
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CLOCK_SECOND * 10,
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ROUTE_DISCOVERY_CHANNELS,
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&route_discovery_callbacks);
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while(1) {
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PROCESS_WAIT_EVENT_UNTIL(ev == rimeroute_event);
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dest = data;
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PRINTF("discovering route to %d.%d\n", dest->u8[0], dest->u8[1]);
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route_discovery_discover(&route_discovery_conn, dest, PACKET_TIMEOUT);
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}
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route_discovery_close(&route_discovery_conn);
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PROCESS_END();
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}
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static void
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found_route(struct route_discovery_conn *rdc, rimeaddr_t *dest)
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{
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}
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static void
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route_timed_out(struct route_discovery_conn *rdc)
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{
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}
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/************************************************************************/
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static int
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activate(void)
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{
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PRINTF("Rimeroute started\n");
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/* Cache routes for 10 minutes */
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route_set_lifetime(600);
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process_start(&rimeroute_process, NULL);
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return 0;
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}
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static int
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deactivate(void)
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{
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PRINTF("Rimeroute stopped\n");
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return 0;
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}
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static uip_ipaddr_t *
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lookup(uip_ipaddr_t *destipaddr, uip_ipaddr_t *nexthop)
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{
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static rimeaddr_t rimeaddr;
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struct route_entry *route;
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int i;
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for(i = 1; i < sizeof(rimeaddr); i++) {
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rimeaddr.u8[i] = destipaddr->u8[sizeof(*destipaddr) - sizeof(rimeaddr) + i];
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}
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rimeaddr.u8[0] = 0;
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PRINTF("rimeroute: looking up ");
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PRINT6ADDR(destipaddr);
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PRINTF(" with Rime address ");
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PRINTRIMEADDR((&rimeaddr));
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PRINTF("\n");
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route = route_lookup(&rimeaddr);
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if(route == NULL) {
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process_post(&rimeroute_process, rimeroute_event, &rimeaddr);
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return NULL;
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}
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uip_ip6addr(nexthop, 0xfe80, 0, 0, 0, 0, 0, 0, 0);
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uip_netif_addr_autoconf_set(nexthop, (uip_lladdr_t *)&route->nexthop);
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PRINTF("rimeroute: ");
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PRINT6ADDR(destipaddr);
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PRINTF(" can be reached via ");
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PRINT6ADDR(nexthop);
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PRINTF("\n");
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return nexthop;
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}
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51
core/net/routing/rimeroute.h
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51
core/net/routing/rimeroute.h
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@ -0,0 +1,51 @@
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/**
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* \addtogroup uip6
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* @{
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*/
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/*
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* Copyright (c) 2009, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: rimeroute.h,v 1.1 2009/04/06 13:11:25 nvt-se Exp $
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*/
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/**
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* \file
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* Declarations for rimeroute.
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*
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* \author Nicolas Tsiftes <nvt@sics.se>
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*/
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#ifndef RIMEROUTE_H
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#define RIMEROUTE_H
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#include "net/uip.h"
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extern const struct uip_router rimeroute;
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#endif /*!RIMEROUTE_H*/
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