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135 lines
3.2 KiB
135 lines
3.2 KiB
/*
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netcfg-dhcp.c - Configure a network via dhcp for the debian-installer
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Author - David Whedon
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*/
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#include <ctype.h>
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#include <net/if.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <debconfclient.h>
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#include "utils.h"
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#include "netcfg.h"
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static char *interface = NULL;
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static char *hostname = NULL;
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static char *domain = NULL;
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static u_int32_t ipaddress = 0;
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static u_int32_t nameservers[4] = { 0 };
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static struct debconfclient *client;
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static char *dhcp_hostname = NULL;
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char *
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debconf_input (char *priority, char *template)
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{
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client->command (client, "fset", template, "seen", "false", NULL);
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client->command (client, "input", priority, template, NULL);
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client->command (client, "go", NULL);
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client->command (client, "get", template, NULL);
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return client->value;
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}
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static void
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netcfg_get_dhcp ()
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{
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if (dhcp_hostname)
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free (dhcp_hostname);
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client->command (client, "input", "high", "netcfg/dhcp_hostname", NULL);
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client->command (client, "go", NULL);
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client->command (client, "get", "netcfg/dhcp_hostname", NULL);
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if (client->value)
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dhcp_hostname = strdup (client->value);
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}
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static void
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netcfg_write_dhcp ()
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{
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FILE *fp;
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if ((fp = file_open (INTERFACES_FILE)))
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{
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fprintf (fp,
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"\n# This entry was created during the Debian installation\n");
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fprintf (fp, "iface %s inet dhcp\n", interface);
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}
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netcfg_mkdir (DHCPCD_DIR);
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if ((fp = file_open (DHCPCD_FILE)))
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{
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fprintf (fp,
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"\n# dhcpcd configuration: created during the Debian installation\n");
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fprintf (fp, "IFACE=%s\n", interface);
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if (dhcp_hostname)
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fprintf (fp, "OPTIONS='-h %s'\n", dhcp_hostname);
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}
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}
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static void
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netcfg_activate_dhcp ()
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{
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char buf[128];
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char *ptr;
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execlog ("/sbin/ifconfig lo 127.0.0.1");
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ptr = buf;
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ptr += snprintf (buf, sizeof (buf), "/sbin/dhcpcd-2.2.x");
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if (dhcp_hostname)
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ptr +=
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snprintf (ptr, sizeof (buf) - (ptr - buf), " -h %s", dhcp_hostname);
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ptr += snprintf (ptr, sizeof (buf) - (ptr - buf), " %s", interface);
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if (execlog (buf))
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netcfg_die (client);
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}
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int
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main (int argc, char *argv[])
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{
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char *ptr;
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int finished = 1;
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client = debconfclient_new ();
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client->command (client, "title", "DHCP Network Configuration", NULL);
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do
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{
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netcfg_get_common (client, interface, hostname, domain, nameservers);
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netcfg_get_dhcp ();
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client->command (client, "subst", "netcfg/confirm_dhcp", "interface",
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interface, NULL);
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client->command (client, "subst", "netcfg/confirm_dhcp", "hostname",
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hostname, NULL);
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client->command (client, "subst", "netcfg/confirm_dhcp", "domain",
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(domain ? domain : "<none>"), NULL);
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client->command (client, "subst", "netcfg/confirm_dhcp",
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"dhcp_hostname",
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(dhcp_hostname ? dhcp_hostname : "<none>"), NULL);
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ptr = debconf_input ("medium", "netcfg/confirm_dhcp");
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if (strstr (ptr, "true"))
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finished = 1;
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}
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while (!finished);
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netcfg_write_dhcp ();
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netcfg_write_common (ipaddress, domain, hostname, nameservers);
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debconf_input ("medium", "netcfg/do_dhcp");
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netcfg_activate_dhcp ();
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return 0;
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}
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