1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357
|
/*
netcfg.c - Configure a network via DHCP or manual configuration
for debian-installer
Copyright (C) 2000-2002 David Kimdon <dwhedon@debian.org>
and others (see debian/copyright)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "netcfg.h"
#include "nm-conf.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <cdebconf/debconfclient.h>
#include <debian-installer.h>
#ifdef WIRELESS
#include <iwlib.h>
#endif
static method_t netcfg_method = DHCP;
response_t netcfg_get_method(struct debconfclient *client)
{
int iret;
iret = debconf_input(client, "medium", "netcfg/use_autoconfig");
if (debconf_go(client) == CMD_GOBACK)
return GO_BACK;
debconf_get(client, "netcfg/use_autoconfig");
if (strcmp(client->value, "true") == 0)
netcfg_method = DHCP;
else
netcfg_method = STATIC;
if (iret == CMD_INPUTINVISIBLE)
return NOT_ASKED;
return 0;
}
int main(int argc, char *argv[])
{
int num_interfaces = 0;
enum { BACKUP,
GET_INTERFACE,
GET_HOSTNAME_ONLY,
GET_METHOD,
GET_DHCP,
GET_STATIC,
WCONFIG,
WCONFIG_ESSID,
WCONFIG_SECURITY_TYPE,
WCONFIG_WEP,
WCONFIG_WPA,
START_WPA,
QUIT } state = GET_INTERFACE;
static struct debconfclient *client;
static int requested_wireless_tools = 0;
char **ifaces;
char *defiface = NULL, *defwireless = NULL;
response_t res;
struct netcfg_interface interface;
#ifdef NM
struct nm_config_info nmconf;
#endif
/* initialize libd-i */
di_system_init("netcfg");
netcfg_interface_init(&interface);
if (strcmp(basename(argv[0]), "ptom") != 0)
di_info("Starting netcfg v.%s", NETCFG_VERSION);
parse_args (argc, argv);
reap_old_files ();
open_sockets();
/* initialize debconf */
client = debconfclient_new();
debconf_capb(client, "backup");
/* Check to see if netcfg should be run at all */
debconf_get(client, "netcfg/enable");
if (!strcmp(client->value, "false")) {
netcfg_get_hostname(client, "netcfg/get_hostname", hostname, 0);
netcfg_write_common("", hostname, NULL);
return 0;
}
/* always always always default back to autoconfig, unless you've specified
* disable_autoconfig on the command line. */
debconf_get(client, "netcfg/disable_autoconfig");
if (!strcmp(client->value, "true"))
debconf_set(client, "netcfg/use_autoconfig", "false");
else
debconf_set(client, "netcfg/use_autoconfig", "true");
/* also support disable_dhcp for compatibility */
debconf_get(client, "netcfg/disable_dhcp");
if (!strcmp(client->value, "true"))
debconf_set(client, "netcfg/use_autoconfig", "false");
for (;;) {
switch(state) {
case BACKUP:
return RETURN_TO_MAIN;
case GET_INTERFACE:
/* If we have returned from outside of netcfg and want to
* reconfigure networking, check to see if wpasupplicant is
* running, and kill it if it is. If left running when
* the interfaces are taken up and down, it appears to
* leave it in an inconsistant state */
kill_wpa_supplicant();
/* Choose a default by looking for link */
if (get_all_ifs(1, &ifaces) > 1) {
while (*ifaces) {
struct netcfg_interface link_interface;
if (check_kill_switch(*ifaces)) {
debconf_subst(client, "netcfg/kill_switch_enabled", "iface", *ifaces);
debconf_input(client, "high", "netcfg/kill_switch_enabled");
if (debconf_go(client) == CMD_GOBACK) {
state = BACKUP;
break;
}
/* Is it still enabled? */
if (check_kill_switch(*ifaces)) {
ifaces++;
continue;
}
}
interface_up(*ifaces);
netcfg_interface_init(&link_interface);
link_interface.name = strdup(*ifaces);
if (netcfg_detect_link (client, &link_interface) == 1) /* CONNECTED */ {
/* CONNECTED */
di_info("found link on interface %s, making it the default.", *ifaces);
defiface = strdup(*ifaces);
free(link_interface.name);
break;
} else {
#ifdef WIRELESS
struct wireless_config wc;
#endif /* WIRELESS */
di_info("found no link on interface %s.", *ifaces);
#ifdef WIRELESS
if (iw_get_basic_config(wfd, *ifaces, &wc) == 0) {
wc.essid[0] = '\0';
wc.essid_on = 0;
iw_set_basic_config(wfd, *ifaces, &wc);
sleep(1);
iw_get_basic_config(wfd, *ifaces, &wc);
if (!empty_str(wc.essid)) {
di_info("%s is associated with %s. Selecting as default", *ifaces, wc.essid);
defiface = strdup(*ifaces);
interface_down(*ifaces);
break;
} else {
di_info("%s is not associated. Relegating to defwireless", *ifaces);
if (defwireless != NULL)
free (defwireless);
defwireless = strdup(*ifaces);
}
}
else
di_info("%s is not a wireless interface. Continuing.", *ifaces);
interface_down(*ifaces);
#endif
}
free(link_interface.name);
interface_down(*ifaces);
ifaces++;
}
}
if (state == BACKUP)
break;
if (!defiface && defwireless)
defiface = defwireless;
if(netcfg_get_interface(client, &(interface.name), &num_interfaces, defiface))
state = BACKUP;
else if (! interface.name || ! num_interfaces)
state = GET_HOSTNAME_ONLY;
else {
if (is_wireless_iface (interface.name))
state = WCONFIG;
else
state = GET_METHOD;
}
break;
case GET_HOSTNAME_ONLY:
if(netcfg_get_hostname(client, "netcfg/get_hostname", hostname, 0))
state = BACKUP;
else {
netcfg_write_common("", hostname, NULL);
state = QUIT;
}
break;
case GET_METHOD:
if ((res = netcfg_get_method(client)) == GO_BACK)
state = (num_interfaces == 1) ? BACKUP : GET_INTERFACE;
else {
if (netcfg_method == DHCP)
state = GET_DHCP;
else
state = GET_STATIC;
}
break;
case GET_DHCP:
switch (netcfg_activate_dhcp(client, &interface)) {
case 0:
state = QUIT;
break;
case RETURN_TO_MAIN:
/*
* It doesn't make sense to go back to GET_METHOD because
* the user has already been asked whether they want to
* try an alternate method.
*/
state = (num_interfaces == 1) ? BACKUP : GET_INTERFACE;
break;
case CONFIGURE_MANUALLY:
state = GET_STATIC;
break;
default:
return 1;
}
break;
case GET_STATIC:
{
int ret;
/* Misnomer - this should actually take care of activation */
if ((ret = netcfg_get_static(client, &interface)) == RETURN_TO_MAIN)
state = GET_INTERFACE;
else if (ret)
state = GET_METHOD;
else
state = QUIT;
break;
}
case WCONFIG:
if (requested_wireless_tools == 0) {
di_exec_shell_log("apt-install iw wireless-tools");
requested_wireless_tools = 1;
}
state = WCONFIG_ESSID;
break;
case WCONFIG_ESSID:
if (netcfg_wireless_set_essid(client, &interface) == GO_BACK)
state = BACKUP;
else {
init_wpa_supplicant_support(&interface);
if (interface.wpa_supplicant_status == WPA_UNAVAIL)
state = WCONFIG_WEP;
else
state = WCONFIG_SECURITY_TYPE;
}
break;
case WCONFIG_SECURITY_TYPE:
{
int ret;
ret = wireless_security_type(client, interface.name);
if (ret == GO_BACK)
state = WCONFIG_ESSID;
else if (ret == REPLY_WPA) {
state = WCONFIG_WPA;
interface.wifi_security = REPLY_WPA;
}
else {
state = WCONFIG_WEP;
interface.wifi_security = REPLY_WEP;
}
break;
}
case WCONFIG_WEP:
if (netcfg_wireless_set_wep(client, &interface) == GO_BACK)
if (interface.wpa_supplicant_status == WPA_UNAVAIL)
state = WCONFIG_ESSID;
else
state = WCONFIG_SECURITY_TYPE;
else
state = GET_METHOD;
break;
case WCONFIG_WPA:
if (interface.wpa_supplicant_status == WPA_OK) {
di_exec_shell_log("apt-install wpasupplicant");
interface.wpa_supplicant_status = WPA_QUEUED;
}
if (netcfg_set_passphrase(client, &interface) == GO_BACK)
state = WCONFIG_SECURITY_TYPE;
else
state = START_WPA;
break;
case START_WPA:
if (wpa_supplicant_start(client, &interface) == GO_BACK)
state = WCONFIG_ESSID;
else
state = GET_METHOD;
break;
case QUIT:
#ifdef NM
if (num_interfaces > 0) {
nm_get_configuration(&interface, &nmconf);
nm_write_configuration(nmconf);
}
#endif
netcfg_update_entropy();
return 0;
}
}
}
|