321 lines
9.3 KiB
C
321 lines
9.3 KiB
C
/*
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* Copyright (c) 2016, Zolertia - http://www.zolertia.com
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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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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*---------------------------------------------------------------------------*/
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/**
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* \addtogroup zolertia-orion-router
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* @{
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*
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* \file
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* Example of an Ethernet IP64 router with weberver
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*
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* \author
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* Antonio Lignan <alinan@zolertia.com>
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*/
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/*---------------------------------------------------------------------------*/
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#include "contiki.h"
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#include "contiki-lib.h"
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#include "contiki-net.h"
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#include "net/ipv6/uip.h"
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#include "net/ipv6/uip-ds6.h"
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#include "net/routing/routing.h"
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#include "dev/leds.h"
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#include "ip64/ip64.h"
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#include "net/netstack.h"
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#include "httpd-simple.h"
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#include <stdio.h>
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#include <stdlib.h>
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/*---------------------------------------------------------------------------*/
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#define BUFFER_LENGTH 256
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/*---------------------------------------------------------------------------*/
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#define LEDS_DHCP LEDS_GREEN
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#define WEBSERVER_CONF_LOADTIME 0
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#define WEBSERVER_CONF_FILESTATS 0
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#define WEBSERVER_CONF_NEIGHBOR_STATUS 0
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/*---------------------------------------------------------------------------*/
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PROCESS(router_node_process, "Router node w/ webserver");
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/*---------------------------------------------------------------------------*/
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#if WEBSERVER_CONF_ROUTE_LINKS
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#define BUF_USES_STACK 1
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#endif
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PROCESS(webserver_nogui_process, "Web server");
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PROCESS_THREAD(webserver_nogui_process, ev, data)
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{
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PROCESS_BEGIN();
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httpd_init();
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while(1) {
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PROCESS_WAIT_EVENT_UNTIL(ev == tcpip_event);
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httpd_appcall(data);
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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AUTOSTART_PROCESSES(&router_node_process,&webserver_nogui_process);
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/*---------------------------------------------------------------------------*/
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static const char *TOP = "<html><head><title>Zolertia IP64 Router</title></head><body>\n";
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static const char *BOTTOM = "</body></html>\n";
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#if BUF_USES_STACK
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static char *bufptr, *bufend;
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#define ADD(...) do { \
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bufptr += snprintf(bufptr, bufend - bufptr, __VA_ARGS__); \
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} while(0)
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#else
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static char buf[BUFFER_LENGTH];
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static int blen;
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#define ADD(...) do { \
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blen += snprintf(&buf[blen], sizeof(buf) - blen, __VA_ARGS__); \
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} while(0)
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#endif
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/*---------------------------------------------------------------------------*/
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static void
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ipaddr_add(const uip_ipaddr_t *addr)
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{
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uint16_t a;
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int i, f;
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for(i = 0, f = 0; i < sizeof(uip_ipaddr_t); i += 2) {
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a = (addr->u8[i] << 8) + addr->u8[i + 1];
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if(a == 0 && f >= 0) {
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if(f++ == 0) ADD("::");
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} else {
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if(f > 0) {
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f = -1;
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} else if(i > 0) {
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ADD(":");
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}
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ADD("%x", a);
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}
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}
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}
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/*---------------------------------------------------------------------------*/
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static
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PT_THREAD(generate_routes(struct httpd_state *s))
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{
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static uip_ds6_route_t *r;
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static uip_ds6_nbr_t *nbr;
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#if BUF_USES_STACK
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char buf[BUFFER_LENGTH];
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#endif
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#if WEBSERVER_CONF_LOADTIME
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static clock_time_t numticks;
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numticks = clock_time();
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#endif
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PSOCK_BEGIN(&s->sout);
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SEND_STRING(&s->sout, TOP);
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#if BUF_USES_STACK
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bufptr = buf;bufend=bufptr+sizeof(buf);
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#else
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blen = 0;
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#endif
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ADD("Neighbors<pre>");
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for(nbr = nbr_table_head(ds6_neighbors);
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nbr != NULL;
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nbr = nbr_table_next(ds6_neighbors, nbr)) {
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#if WEBSERVER_CONF_NEIGHBOR_STATUS
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#if BUF_USES_STACK
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{
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char* j = bufptr + 25;
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ipaddr_add(&nbr->ipaddr);
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while (bufptr < j) ADD(" ");
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switch (nbr->state) {
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case NBR_INCOMPLETE: ADD(" INCOMPLETE");break;
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case NBR_REACHABLE: ADD(" REACHABLE");break;
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case NBR_STALE: ADD(" STALE");break;
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case NBR_DELAY: ADD(" DELAY");break;
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case NBR_PROBE: ADD(" NBR_PROBE");break;
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}
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}
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#else
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{
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uint8_t j = blen + 25;
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ipaddr_add(&nbr->ipaddr);
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while (blen < j) ADD(" ");
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switch (nbr->state) {
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case NBR_INCOMPLETE: ADD(" INCOMPLETE");break;
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case NBR_REACHABLE: ADD(" REACHABLE");break;
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case NBR_STALE: ADD(" STALE");break;
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case NBR_DELAY: ADD(" DELAY");break;
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case NBR_PROBE: ADD(" NBR_PROBE");break;
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}
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}
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#endif
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#else
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ipaddr_add(&nbr->ipaddr);
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#endif
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ADD("\n");
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#if BUF_USES_STACK
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if(bufptr > bufend - 45) {
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SEND_STRING(&s->sout, buf);
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bufptr = buf; bufend = bufptr + sizeof(buf);
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}
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#else
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if(blen > sizeof(buf) - 45) {
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SEND_STRING(&s->sout, buf);
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blen = 0;
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}
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#endif
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}
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ADD("</pre>Routes<pre>");
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SEND_STRING(&s->sout, buf);
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#if BUF_USES_STACK
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bufptr = buf; bufend = bufptr + sizeof(buf);
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#else
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blen = 0;
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#endif
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for(r = uip_ds6_route_head(); r != NULL; r = uip_ds6_route_next(r)) {
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#if BUF_USES_STACK
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#if WEBSERVER_CONF_ROUTE_LINKS
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ADD("<a href=http://[");
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ipaddr_add(&r->ipaddr);
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ADD("]/status.shtml>");
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ipaddr_add(&r->ipaddr);
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ADD("</a>");
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#else
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ipaddr_add(&r->ipaddr);
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#endif
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#else
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#if WEBSERVER_CONF_ROUTE_LINKS
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ADD("<a href=http://[");
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ipaddr_add(&r->ipaddr);
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ADD("]/status.shtml>");
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SEND_STRING(&s->sout, buf);
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blen = 0;
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ipaddr_add(&r->ipaddr);
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ADD("</a>");
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#else
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ipaddr_add(&r->ipaddr);
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#endif
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#endif
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ADD("/%u (via ", r->length);
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ipaddr_add(uip_ds6_route_nexthop(r));
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if(1 || (r->state.lifetime < 600)) {
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ADD(") %lus\n", (unsigned long)r->state.lifetime);
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} else {
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ADD(")\n");
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}
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SEND_STRING(&s->sout, buf);
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#if BUF_USES_STACK
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bufptr = buf; bufend = bufptr + sizeof(buf);
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#else
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blen = 0;
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#endif
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}
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ADD("</pre>");
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#if WEBSERVER_CONF_FILESTATS
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static uint16_t numtimes;
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ADD("<br><i>This page sent %u times</i>",++numtimes);
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#endif
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#if WEBSERVER_CONF_LOADTIME
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numticks = clock_time() - numticks + 1;
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ADD(" <i>(%u.%02u sec)</i>", numticks / CLOCK_SECOND,
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(100 * (numticks % CLOCK_SECOND)) / CLOCK_SECOND));
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#endif
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SEND_STRING(&s->sout, buf);
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SEND_STRING(&s->sout, BOTTOM);
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PSOCK_END(&s->sout);
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}
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/*---------------------------------------------------------------------------*/
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httpd_simple_script_t
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httpd_simple_get_script(const char *name)
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{
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return generate_routes;
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(router_node_process, ev, data)
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{
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PROCESS_BEGIN();
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static struct etimer et;
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/* Turn radio off while initialazing */
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NETSTACK_MAC.off();
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/* Initialize the IP64 module so we'll start translating packets */
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ip64_init();
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printf("Waiting for an address...\n");
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/* Wait to get a DHCP address */
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etimer_set(&et, CLOCK_SECOND * 5);
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while(1) {
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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leds_toggle(LEDS_DHCP);
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if(ip64_hostaddr_is_configured()) {
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const uip_ip4addr_t *hostaddr = ip64_get_hostaddr();
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const uip_ip4addr_t *netmask = ip64_get_netmask();
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const uip_ip4addr_t *gwaddr = ip64_get_draddr();
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printf("IPv4 DHCP address: %d.%d.%d.%d\n", hostaddr->u8[0],
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hostaddr->u8[1],
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hostaddr->u8[2],
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hostaddr->u8[3]);
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printf("Netmask : %d.%d.%d.%d\n", netmask->u8[0], netmask->u8[1],
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netmask->u8[2], netmask->u8[3]);
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printf("Gateway: %d.%d.%d.%d\n", gwaddr->u8[0], gwaddr->u8[1],
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gwaddr->u8[2], gwaddr->u8[3]);
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break;
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}
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etimer_reset(&et);
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}
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leds_off(LEDS_DHCP);
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/* Set us up as a RPL root node. */
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NETSTACK_ROUTING.root_start();
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/* ... and do nothing more. */
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while(1) {
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PROCESS_WAIT_EVENT();
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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/** @} */
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