osd-contiki/platform/galileo/net/eth-conf.c
Michael LeMay c276081150 galileo: Add process to perform DHCP configuration
This patch adds a process that is started automatically to request DHCP
configuration.  It also moves the IP configuration ahead of autostart processes
in case some autostart process depends on the IP configuration.
2016-08-23 13:16:39 -07:00

126 lines
4.1 KiB
C

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