contiki/cpu/6502/dhcp/dhcp-client.c
2010-04-05 13:41:29 +00:00

270 lines
7.8 KiB
C

/*
* Copyright (c) 2002, Adam Dunkels.
* 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* This file is part of the Contiki desktop environment
*
* $Id: dhcp-client.c,v 1.3 2010/04/05 13:41:29 oliverschmidt Exp $
*
*/
#include "contiki-net.h"
#include "ctk/ctk.h"
#include "cfs/cfs.h"
#include "net/dhcpc.h"
static struct ctk_window window;
static struct ctk_button requestbutton =
{CTK_BUTTON(4, 1, 18, "Request IP address")};
static struct ctk_label statuslabel =
{CTK_LABEL(0, 3, 14, 1, "")};
static struct ctk_label ipaddrlabel =
{CTK_LABEL(0, 5, 10, 1, "IP address")};
static char ipaddr[16];
static struct ctk_textentry ipaddrtextentry =
{CTK_TEXTENTRY(11, 5, 15, 1, ipaddr, 15)};
static struct ctk_label netmasklabel =
{CTK_LABEL(0, 7, 10, 1, "Netmask")};
static char netmask[16];
static struct ctk_textentry netmasktextentry =
{CTK_TEXTENTRY(11, 7, 15, 1, netmask, 15)};
static struct ctk_label gatewaylabel =
{CTK_LABEL(0, 9, 10, 1, "Gateway")};
static char gateway[16];
static struct ctk_textentry gatewaytextentry =
{CTK_TEXTENTRY(11, 9, 15, 1, gateway, 15)};
#if WITH_DNS
static struct ctk_label dnsserverlabel =
{CTK_LABEL(0, 11, 10, 1, "DNS server")};
static char dnsserver[16];
static struct ctk_textentry dnsservertextentry =
{CTK_TEXTENTRY(11, 11, 15, 1, dnsserver, 15)};
#endif /* WITH_DNS */
static struct ctk_button savebutton =
{CTK_BUTTON(0, 13, 12, "Save & close")};
static struct ctk_button cancelbutton =
{CTK_BUTTON(20, 13, 6, "Cancel")};
PROCESS(dhcp_process, "DHCP client");
AUTOSTART_PROCESSES(&dhcp_process);
/*-----------------------------------------------------------------------------------*/
static char *
makebyte(u8_t byte, char *str)
{
if(byte >= 100) {
*str++ = (byte / 100 ) % 10 + '0';
}
if(byte >= 10) {
*str++ = (byte / 10) % 10 + '0';
}
*str++ = (byte % 10) + '0';
return str;
}
/*-----------------------------------------------------------------------------------*/
static void
makeaddr(uip_ipaddr_t *addr, char *str)
{
str = makebyte(addr->u8[0], str);
*str++ = '.';
str = makebyte(addr->u8[1], str);
*str++ = '.';
str = makebyte(addr->u8[2], str);
*str++ = '.';
str = makebyte(addr->u8[3], str);
*str++ = 0;
}
/*-----------------------------------------------------------------------------------*/
static void
makestrings(void)
{
uip_ipaddr_t addr, *addrptr;
uip_gethostaddr(&addr);
makeaddr(&addr, ipaddr);
uip_getnetmask(&addr);
makeaddr(&addr, netmask);
uip_getdraddr(&addr);
makeaddr(&addr, gateway);
#if WITH_DNS
addrptr = resolv_getserver();
if(addrptr != NULL) {
makeaddr(addrptr, dnsserver);
}
#endif /* WITH_DNS */
}
/*-----------------------------------------------------------------------------------*/
static void
nullterminate(char *cptr)
{
/* Find the first space character in the ipaddr and put a zero there
to end the string. */
for(; *cptr != ' ' && *cptr != 0; ++cptr);
*cptr = 0;
}
/*-----------------------------------------------------------------------------------*/
static void
apply_tcpipconfig(void)
{
int file = cfs_open("contiki.cfg", CFS_READ);
int size = cfs_read(file, uip_buf, 100);
cfs_close(file);
nullterminate(ipaddr);
uiplib_ipaddrconv(ipaddr, &uip_buf[0]);
nullterminate(netmask);
uiplib_ipaddrconv(netmask, &uip_buf[4]);
nullterminate(gateway);
uiplib_ipaddrconv(gateway, &uip_buf[8]);
#if WITH_DNS
nullterminate(dnsserver);
uiplib_ipaddrconv(dnsserver, &uip_buf[12]);
#endif /* WITH_DNS */
file = cfs_open("contiki.cfg", CFS_WRITE);
cfs_write(file, uip_buf, size);
cfs_close(file);
}
/*-----------------------------------------------------------------------------------*/
static void
set_statustext(char *text)
{
ctk_label_set_text(&statuslabel, text);
CTK_WIDGET_REDRAW(&statuslabel);
}
/*-----------------------------------------------------------------------------------*/
static void
app_quit(void)
{
ctk_window_close(&window);
process_exit(&dhcp_process);
LOADER_UNLOAD();
}
/*-----------------------------------------------------------------------------------*/
PROCESS_THREAD(dhcp_process, ev, data)
{
PROCESS_BEGIN();
ctk_window_new(&window, 29, 14, "DHCP client");
CTK_WIDGET_ADD(&window, &requestbutton);
CTK_WIDGET_ADD(&window, &statuslabel);
CTK_WIDGET_ADD(&window, &ipaddrlabel);
CTK_WIDGET_ADD(&window, &ipaddrtextentry);
CTK_WIDGET_ADD(&window, &netmasklabel);
CTK_WIDGET_ADD(&window, &netmasktextentry);
CTK_WIDGET_ADD(&window, &gatewaylabel);
CTK_WIDGET_ADD(&window, &gatewaytextentry);
#if WITH_DNS
CTK_WIDGET_ADD(&window, &dnsserverlabel);
CTK_WIDGET_ADD(&window, &dnsservertextentry);
#endif /* WITH_DNS */
CTK_WIDGET_ADD(&window, &savebutton);
CTK_WIDGET_ADD(&window, &cancelbutton);
CTK_WIDGET_FOCUS(&window, &requestbutton);
ctk_window_open(&window);
/* Allow resolver to set DNS server address. */
process_post(PROCESS_CURRENT(), 0, NULL);
dhcpc_init(uip_ethaddr.addr, sizeof(uip_ethaddr.addr));
while(1) {
PROCESS_WAIT_EVENT();
if(ev == 0) {
makestrings();
ctk_window_redraw(&window);
} else if(ev == tcpip_event) {
dhcpc_appcall(ev, data);
} else if(ev == ctk_signal_button_activate) {
if(data == (process_data_t)&requestbutton) {
dhcpc_request();
set_statustext("Requesting...");
}
if(data == (process_data_t)&savebutton) {
apply_tcpipconfig();
app_quit();
}
if(data == (process_data_t)&cancelbutton) {
app_quit();
}
} else if(
#if CTK_CONF_WINDOWCLOSE
ev == ctk_signal_window_close ||
#endif
ev == PROCESS_EVENT_EXIT) {
app_quit();
}
}
PROCESS_END();
}
/*-----------------------------------------------------------------------------------*/
void
dhcpc_configured(const struct dhcpc_state *s)
{
uip_sethostaddr(&s->ipaddr);
uip_setnetmask(&s->netmask);
uip_setdraddr(&s->default_router);
#if WITH_DNS
resolv_conf(&s->dnsaddr);
#endif /* WITH_DNS */
set_statustext("Configured.");
process_post(PROCESS_CURRENT(), 0, NULL);
}
/*-----------------------------------------------------------------------------------*/
void
dhcpc_unconfigured(const struct dhcpc_state *s)
{
static uip_ipaddr_t nulladdr;
uip_sethostaddr(&nulladdr);
uip_setnetmask(&nulladdr);
uip_setdraddr(&nulladdr);
#if WITH_DNS
resolv_conf(&nulladdr);
#endif /* WITH_DNS */
set_statustext("Unconfigured.");
process_post(PROCESS_CURRENT(), 0, NULL);
}
/*-----------------------------------------------------------------------------------*/