nes-proj/platform/sky/dhclient.c

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/*
* Copyright (c) 2006, 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.
*
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* @(#)$Id: dhclient.c,v 1.10 2007/05/21 14:21:53 bg- Exp $
*/
/*
* Example mote configuration with one radio interface that uses DHCP
* to configure its IP stack.
*
* The gateway systems must be configured to find what DHCP server to
* use, this can be done with an extra argument to tunslip, example:
*
* sliphost# ./tunslip 172.16.0.1 255.255.0.0 193.10.66.195
*
*
* This kernel has no application code but new modules can be uploaded
* using the codeprop program, example:
*
* datan$ ./codeprop 172.16.0.1 loadable_prg.ko
* File successfully sent (1116 bytes)
* Reply: ok
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <io.h>
#include "contiki.h"
/* Also IP output. */
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#include "net/uip-fw-drv.h"
#include "net/uaodv.h"
#include "net/dhcpc.h"
#include "dev/slip.h"
#include "dev/cc2420.h"
#include "dev/ds2411.h"
#include "dev/leds.h"
#include "dev/light.h"
#include "dev/xmem.h"
#include "dev/button.h"
#include "codeprop/codeprop.h"
/* This is how we force inclusion of the psock library. */
#include "net/psock.h"
void *force_psock_inclusion = &psock_init;
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void *force_udp_inclusion = &uip_udp_packet_send;
struct uip_fw_netif cc2420if =
{UIP_FW_NETIF(0,0,0,0, 255,255,255,255, cc2420_send_uaodv)};
PROCESS(button_process, "Button process");
PROCESS(dhclient_process, "Dhclient process");
/* Radio stuff in network byte order. */
static u16_t panId = HTONS(0x2024);
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#ifndef RF_CHANNEL
#define RF_CHANNEL 15
#endif
int
main(int argc, char **argv)
{
/*
* Initalize hardware.
*/
msp430_cpu_init();
clock_init();
leds_init();
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leds_toggle(LEDS_ALL);
slip_arch_init(BAUD2UBR(115200)); /* Must come before first printf */
printf("Starting %s "
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"($Id: dhclient.c,v 1.10 2007/05/21 14:21:53 bg- Exp $)\n", __FILE__);
ds2411_init();
sensors_light_init();
cc2420_init();
xmem_init();
button_init(&button_process);
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leds_toggle(LEDS_ALL);
/*
* Hardware initialization done!
*/
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printf("MAC %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x CHANNEL %d\n",
ds2411_id[0], ds2411_id[1], ds2411_id[2], ds2411_id[3],
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ds2411_id[4], ds2411_id[5], ds2411_id[6], ds2411_id[7],
RF_CHANNEL);
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srand(rand() +
(ds2411_id[3]<<8) + (ds2411_id[4]<<6) + (ds2411_id[5]<<4) +
(ds2411_id[6]<<2) + ds2411_id[7]);
/*
* Initialize Contiki and our processes.
*/
process_init();
process_start(&etimer_process, NULL);
/* Configure IP stack. */
uip_init();
/* Start IP stack. */
process_start(&tcpip_process, NULL);
process_start(&uip_fw_process, NULL); /* Start IP output */
process_start(&cc2420_process, NULL);
cc2420_on();
process_start(&dhclient_process, NULL);
process_start(&button_process, NULL);
process_start(&tcp_loader_process, NULL);
/*
* This is the scheduler loop.
*/
printf("process_run()...\n");
while (1) {
do {
/* Reset watchdog. */
} while(process_run() > 0);
/*
* Idle processing.
*/
int s = splhigh(); /* Disable interrupts. */
if(process_nevents() != 0) {
splx(s); /* Re-enable interrupts. */
} else {
/* Re-enable interrupts and go to sleep atomically. */
_BIS_SR(GIE | SCG0 | CPUOFF); /* LPM1 sleep. */
}
}
return 0;
}
PROCESS_THREAD(button_process, ev, data)
{
static struct etimer etimer;
PROCESS_EXITHANDLER(goto exit);
PROCESS_BEGIN();
printf("button_process starting\n");
while(1) {
PROCESS_WAIT_EVENT();
if(ev == PROCESS_EVENT_MSG && data != NULL
&& ((struct button_msg *)data)->type == BUTTON_MSG_TYPE) {
printf("button press\n");
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leds_toggle(LEDS_ALL);
etimer_set(&etimer, CLOCK_SECOND);
PROCESS_WAIT_UNTIL(etimer_expired(&etimer));
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leds_toggle(LEDS_ALL);
}
}
exit:
printf("button_process exiting\n");
PROCESS_END();
}
PROCESS_THREAD(dhclient_process, ev, data)
{
PROCESS_EXITHANDLER(goto exit);
PROCESS_BEGIN();
printf("dhclient_process starting\n");
leds_toggle(LEDS_GREEN);
uip_setipid(rand());
/* For now use 0.0.0.0 as our IP address. */
uip_ipaddr(&uip_hostaddr, 0,0,0,0);
cc2420_set_chan_pan_addr(RF_CHANNEL, panId, uip_hostaddr.u16[1], ds2411_id);
/* Use only radio interface and enable forwarding. */
uip_fw_default(&cc2420if);
tcpip_set_forwarding(1);
/* No default router yet. */
dhcpc_init(ds2411_id, sizeof(ds2411_id));
dhcpc_request();
while(1) {
PROCESS_WAIT_EVENT();
dhcpc_appcall(ev, data);
}
exit:
printf("dhclient_process exiting\n");
PROCESS_END();
}
static char is_configured;
#define ip2quad(p) uip_ipaddr1(p),uip_ipaddr2(p),uip_ipaddr3(p),uip_ipaddr4(p)
void
dhcpc_configured(const struct dhcpc_state *s)
{
if(is_configured)
printf("dhcp reconfigure %d.%d.%d.%d\n", ip2quad(&s->ipaddr));
else {
printf("dhcpc_configured %d.%d.%d.%d\n", ip2quad(&s->ipaddr));
leds_toggle(LEDS_GREEN);
is_configured = 1;
process_start(&uaodv_process, NULL);
}
uip_sethostaddr(&s->ipaddr);
uip_setnetmask(&s->netmask);
uip_setdraddr(&s->default_router);
uip_ipaddr_copy(&cc2420if.ipaddr, &s->ipaddr);
uip_ipaddr_copy(&cc2420if.netmask, &s->netmask);
/* resolv_conf(s->dnsaddr); */
/*
* Now we also have a new short MAC address!
*/
cc2420_set_chan_pan_addr(RF_CHANNEL, panId, uip_hostaddr.u16[1], ds2411_id);
/* Use only radio interface and enable forwarding. */
uip_fw_init();
tcpip_set_forwarding(1);
uip_fw_default(&cc2420if);
}
void
dhcpc_unconfigured(const struct dhcpc_state *s)
{
printf("dhcpc_unconfigured\n");
leds_toggle(LEDS_GREEN);
is_configured = 0;
process_exit(&uaodv_process);
uip_ipaddr(&uip_hostaddr, 0,0,0,0);
uip_ipaddr(&uip_netmask, 0,0,0,0);
uip_ipaddr(&uip_draddr, 0,0,0,0);
/* New short MAC address. */
cc2420_set_chan_pan_addr(RF_CHANNEL, panId, uip_hostaddr.u16[1], ds2411_id);
}