osd-contiki/examples/zolertia/zoul/orion/ip64-router/ip64-router.c

324 lines
9.4 KiB
C

/*
* Copyright (c) 2016, Zolertia - http://www.zolertia.com
* 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 copyright holder 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 COPYRIGHT HOLDERS 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
* COPYRIGHT HOLDER 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.
*/
/*---------------------------------------------------------------------------*/
/**
* \addtogroup zolertia-orion-router
* @{
*
* \file
* Example of an Ethernet IP64 router with weberver
*
* \author
* Antonio Lignan <alinan@zolertia.com>
*/
/*---------------------------------------------------------------------------*/
#include "contiki.h"
#include "contiki-lib.h"
#include "contiki-net.h"
#include "net/ip/uip.h"
#include "net/ipv6/uip-ds6.h"
#include "net/rpl/rpl.h"
#include "rpl-dag-root.h"
#include "dev/leds.h"
#include "ip64.h"
#include "net/netstack.h"
#include "httpd-simple.h"
#include <stdio.h>
#include <stdlib.h>
/*---------------------------------------------------------------------------*/
#define BUFFER_LENGTH 256
/*---------------------------------------------------------------------------*/
#define LEDS_DHCP LEDS_GREEN
#define WEBSERVER_CONF_LOADTIME 0
#define WEBSERVER_CONF_FILESTATS 0
#define WEBSERVER_CONF_NEIGHBOR_STATUS 0
/*---------------------------------------------------------------------------*/
PROCESS(router_node_process, "Router node w/ webserver");
/*---------------------------------------------------------------------------*/
#if WEBSERVER_CONF_ROUTE_LINKS
#define BUF_USES_STACK 1
#endif
PROCESS(webserver_nogui_process, "Web server");
PROCESS_THREAD(webserver_nogui_process, ev, data)
{
PROCESS_BEGIN();
httpd_init();
while(1) {
PROCESS_WAIT_EVENT_UNTIL(ev == tcpip_event);
httpd_appcall(data);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
AUTOSTART_PROCESSES(&router_node_process,&webserver_nogui_process);
/*---------------------------------------------------------------------------*/
static const char *TOP = "<html><head><title>Zolertia IP64 Router</title></head><body>\n";
static const char *BOTTOM = "</body></html>\n";
#if BUF_USES_STACK
static char *bufptr, *bufend;
#define ADD(...) do { \
bufptr += snprintf(bufptr, bufend - bufptr, __VA_ARGS__); \
} while(0)
#else
static char buf[BUFFER_LENGTH];
static int blen;
#define ADD(...) do { \
blen += snprintf(&buf[blen], sizeof(buf) - blen, __VA_ARGS__); \
} while(0)
#endif
/*---------------------------------------------------------------------------*/
static void
ipaddr_add(const uip_ipaddr_t *addr)
{
uint16_t a;
int i, f;
for(i = 0, f = 0; i < sizeof(uip_ipaddr_t); i += 2) {
a = (addr->u8[i] << 8) + addr->u8[i + 1];
if(a == 0 && f >= 0) {
if(f++ == 0) ADD("::");
} else {
if(f > 0) {
f = -1;
} else if(i > 0) {
ADD(":");
}
ADD("%x", a);
}
}
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(generate_routes(struct httpd_state *s))
{
static uip_ds6_route_t *r;
static uip_ds6_nbr_t *nbr;
#if BUF_USES_STACK
char buf[BUFFER_LENGTH];
#endif
#if WEBSERVER_CONF_LOADTIME
static clock_time_t numticks;
numticks = clock_time();
#endif
PSOCK_BEGIN(&s->sout);
SEND_STRING(&s->sout, TOP);
#if BUF_USES_STACK
bufptr = buf;bufend=bufptr+sizeof(buf);
#else
blen = 0;
#endif
ADD("Neighbors<pre>");
for(nbr = nbr_table_head(ds6_neighbors);
nbr != NULL;
nbr = nbr_table_next(ds6_neighbors, nbr)) {
#if WEBSERVER_CONF_NEIGHBOR_STATUS
#if BUF_USES_STACK
{
char* j = bufptr + 25;
ipaddr_add(&nbr->ipaddr);
while (bufptr < j) ADD(" ");
switch (nbr->state) {
case NBR_INCOMPLETE: ADD(" INCOMPLETE");break;
case NBR_REACHABLE: ADD(" REACHABLE");break;
case NBR_STALE: ADD(" STALE");break;
case NBR_DELAY: ADD(" DELAY");break;
case NBR_PROBE: ADD(" NBR_PROBE");break;
}
}
#else
{
uint8_t j = blen + 25;
ipaddr_add(&nbr->ipaddr);
while (blen < j) ADD(" ");
switch (nbr->state) {
case NBR_INCOMPLETE: ADD(" INCOMPLETE");break;
case NBR_REACHABLE: ADD(" REACHABLE");break;
case NBR_STALE: ADD(" STALE");break;
case NBR_DELAY: ADD(" DELAY");break;
case NBR_PROBE: ADD(" NBR_PROBE");break;
}
}
#endif
#else
ipaddr_add(&nbr->ipaddr);
#endif
ADD("\n");
#if BUF_USES_STACK
if(bufptr > bufend - 45) {
SEND_STRING(&s->sout, buf);
bufptr = buf; bufend = bufptr + sizeof(buf);
}
#else
if(blen > sizeof(buf) - 45) {
SEND_STRING(&s->sout, buf);
blen = 0;
}
#endif
}
ADD("</pre>Routes<pre>");
SEND_STRING(&s->sout, buf);
#if BUF_USES_STACK
bufptr = buf; bufend = bufptr + sizeof(buf);
#else
blen = 0;
#endif
for(r = uip_ds6_route_head(); r != NULL; r = uip_ds6_route_next(r)) {
#if BUF_USES_STACK
#if WEBSERVER_CONF_ROUTE_LINKS
ADD("<a href=http://[");
ipaddr_add(&r->ipaddr);
ADD("]/status.shtml>");
ipaddr_add(&r->ipaddr);
ADD("</a>");
#else
ipaddr_add(&r->ipaddr);
#endif
#else
#if WEBSERVER_CONF_ROUTE_LINKS
ADD("<a href=http://[");
ipaddr_add(&r->ipaddr);
ADD("]/status.shtml>");
SEND_STRING(&s->sout, buf);
blen = 0;
ipaddr_add(&r->ipaddr);
ADD("</a>");
#else
ipaddr_add(&r->ipaddr);
#endif
#endif
ADD("/%u (via ", r->length);
ipaddr_add(uip_ds6_route_nexthop(r));
if(1 || (r->state.lifetime < 600)) {
ADD(") %lus\n", (unsigned long)r->state.lifetime);
} else {
ADD(")\n");
}
SEND_STRING(&s->sout, buf);
#if BUF_USES_STACK
bufptr = buf; bufend = bufptr + sizeof(buf);
#else
blen = 0;
#endif
}
ADD("</pre>");
#if WEBSERVER_CONF_FILESTATS
static uint16_t numtimes;
ADD("<br><i>This page sent %u times</i>",++numtimes);
#endif
#if WEBSERVER_CONF_LOADTIME
numticks = clock_time() - numticks + 1;
ADD(" <i>(%u.%02u sec)</i>", numticks / CLOCK_SECOND,
(100 * (numticks % CLOCK_SECOND)) / CLOCK_SECOND));
#endif
SEND_STRING(&s->sout, buf);
SEND_STRING(&s->sout, BOTTOM);
PSOCK_END(&s->sout);
}
/*---------------------------------------------------------------------------*/
httpd_simple_script_t
httpd_simple_get_script(const char *name)
{
return generate_routes;
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(router_node_process, ev, data)
{
PROCESS_BEGIN();
static struct etimer et;
/* Turn radio off while initialazing */
NETSTACK_MAC.off(0);
/* Initialize the IP64 module so we'll start translating packets */
ip64_init();
printf("Waiting for an address...\n");
/* Wait to get a DHCP address */
etimer_set(&et, CLOCK_SECOND * 5);
while(1) {
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
leds_toggle(LEDS_DHCP);
if(ip64_hostaddr_is_configured()) {
const uip_ip4addr_t *hostaddr = ip64_get_hostaddr();
const uip_ip4addr_t *netmask = ip64_get_netmask();
const uip_ip4addr_t *gwaddr = ip64_get_draddr();
printf("IPv4 DHCP address: %d.%d.%d.%d\n", hostaddr->u8[0],
hostaddr->u8[1],
hostaddr->u8[2],
hostaddr->u8[3]);
printf("Netmask : %d.%d.%d.%d\n", netmask->u8[0], netmask->u8[1],
netmask->u8[2], netmask->u8[3]);
printf("Gateway: %d.%d.%d.%d\n", gwaddr->u8[0], gwaddr->u8[1],
gwaddr->u8[2], gwaddr->u8[3]);
break;
}
etimer_reset(&et);
}
leds_off(LEDS_DHCP);
/* Turn the radio on and create the network */
NETSTACK_MAC.off(1);
/* Set us up as a RPL root node. */
rpl_dag_root_init_dag();
/* ... and do nothing more. */
while(1) {
PROCESS_WAIT_EVENT();
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
/** @} */