129 lines
4.2 KiB
C
129 lines
4.2 KiB
C
/*
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* Copyright (C) 2015-2016, Intel Corporation. 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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#include "eth-conf.h"
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#include <stdio.h>
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#include "net/eth-proc.h"
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#include "contiki-net.h"
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#include "net/ip/dhcpc.h"
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#include "net/linkaddr.h"
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#if NETSTACK_CONF_WITH_IPV6
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const linkaddr_t linkaddr_null = { { 0, 0, 0, 0, 0, 0 } };
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#else
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/* 192.0.2.0/24 is a block reserved for documentation by RFC 5737. */
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#define SUBNET_IP 192, 0, 2
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#define NETMASK_IP 255, 255, 255, 0
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#define HOST_IP SUBNET_IP, 2
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#define GATEWAY_IP SUBNET_IP, 1
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#define NAMESERVER_IP GATEWAY_IP
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PROCESS(dhcp_process, "DHCP");
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#endif
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/*---------------------------------------------------------------------------*/
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void
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eth_init(void)
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{
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#if !NETSTACK_CONF_WITH_IPV6
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uip_ipaddr_t ip_addr;
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#define SET_IP_ADDR(x) \
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uip_ipaddr(&ip_addr, x)
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SET_IP_ADDR(HOST_IP);
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uip_sethostaddr(&ip_addr);
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SET_IP_ADDR(NETMASK_IP);
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uip_setnetmask(&ip_addr);
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SET_IP_ADDR(GATEWAY_IP);
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uip_setdraddr(&ip_addr);
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#if WITH_DNS
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SET_IP_ADDR(NAMESERVER_IP);
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uip_nameserver_update(&ip_addr, UIP_NAMESERVER_INFINITE_LIFETIME);
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#endif
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#endif
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process_start(ð_process, NULL);
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#if !NETSTACK_CONF_WITH_IPV6
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/* Comment out the following line to disable DHCP and simply use the static
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* IP configuration setup above.
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*/
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process_start(&dhcp_process, NULL);
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#endif
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}
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#if !NETSTACK_CONF_WITH_IPV6
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(dhcp_process, ev, data)
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{
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PROCESS_BEGIN();
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dhcpc_init(uip_lladdr.addr, sizeof(uip_lladdr.addr));
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printf("Requesting DHCP configuration...\n");
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dhcpc_request();
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while(1) {
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PROCESS_WAIT_EVENT();
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if(ev == tcpip_event || ev == PROCESS_EVENT_TIMER) {
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dhcpc_appcall(ev, data);
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} else if(ev == PROCESS_EVENT_EXIT) {
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process_exit(&dhcp_process);
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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void
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dhcpc_configured(const struct dhcpc_state *s)
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{
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uip_sethostaddr(&s->ipaddr);
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uip_setnetmask(&s->netmask);
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uip_setdraddr(&s->default_router);
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uip_nameserver_update(&s->dnsaddr, UIP_NAMESERVER_INFINITE_LIFETIME);
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printf("DHCP configured:\n");
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printf(" - Host IP: %d.%d.%d.%d\n", uip_ipaddr_to_quad(&s->ipaddr));
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printf(" - Netmask: %d.%d.%d.%d\n", uip_ipaddr_to_quad(&s->netmask));
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printf(" - Default router: %d.%d.%d.%d\n",
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uip_ipaddr_to_quad(&s->default_router));
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printf(" - DNS server: %d.%d.%d.%d\n", uip_ipaddr_to_quad(&s->dnsaddr));
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}
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/*---------------------------------------------------------------------------*/
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void
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dhcpc_unconfigured(const struct dhcpc_state *s)
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{
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printf("DHCP unconfigured.\n");
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}
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/*---------------------------------------------------------------------------*/
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#endif
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