nes-proj/os/services/ip64/ip64-ipv4-dhcp.c

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/*
* Copyright (c) 2012, Thingsquare, http://www.thingsquare.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.
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*
* 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.
*
*/
#include "contiki.h"
#include "contiki-net.h"
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#include "ip64/ip64-dhcpc.h"
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#include "ip64/ip64.h"
#include "ip64/ip64-eth.h"
#include "ipv6/ip64-addr.h"
#include <stdio.h>
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#define DEBUG DEBUG_NONE
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#include "net/ipv6/uip-debug.h"
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PROCESS(ip64_ipv4_dhcp_process, "IPv4 DHCP");
uip_ipaddr_t uip_hostaddr; /* Needed because it is referenced by dhcpc.c */
/*---------------------------------------------------------------------------*/
void
ip64_ipv4_dhcp_init(void)
{
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printf("IP64: Starting DHCPv4\n");
process_start(&ip64_ipv4_dhcp_process, NULL);
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(ip64_ipv4_dhcp_process, ev, data)
{
PROCESS_BEGIN();
ip64_dhcpc_init(&ip64_eth_addr, sizeof(ip64_eth_addr));
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PRINTF("IP64: Inited\n");
ip64_dhcpc_request();
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PRINTF("IP64: Requested\n");
while(1) {
PROCESS_WAIT_EVENT();
if(ev == tcpip_event ||
ev == PROCESS_EVENT_TIMER) {
ip64_dhcpc_appcall(ev, data);
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
void
ip64_dhcpc_configured(const struct ip64_dhcpc_state *s)
{
uip_ip6addr_t ip6dnsaddr;
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PRINTF("IP64: DHCP Configured with %d.%d.%d.%d\n",
s->ipaddr.u8[0], s->ipaddr.u8[1],
s->ipaddr.u8[2], s->ipaddr.u8[3]);
ip64_set_hostaddr((uip_ip4addr_t *)&s->ipaddr);
ip64_set_netmask((uip_ip4addr_t *)&s->netmask);
ip64_set_draddr((uip_ip4addr_t *)&s->default_router);
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if(!uip_ip4addr_cmp((uip_ip4addr_t *)&s->dnsaddr, &uip_all_zeroes_addr)) {
/* Note: Currently we assume only one DNS server */
uip_ipaddr_t * dns = uip_nameserver_get(0);
/* Only update DNS entry if it is empty or already IPv4 */
if(uip_is_addr_unspecified(dns) || ip64_addr_is_ip64(dns)) {
ip64_addr_4to6((uip_ip4addr_t *)&s->dnsaddr, &ip6dnsaddr);
uip_nameserver_update(&ip6dnsaddr, uip_ntohs(s->lease_time[0])*65536ul + uip_ntohs(s->lease_time[1]));
}
}
}
/*---------------------------------------------------------------------------*/
void
ip64_dhcpc_unconfigured(const struct ip64_dhcpc_state *s)
{
}
/*---------------------------------------------------------------------------*/