5 * Copyright (C) 2007-2010 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
33 #include <sys/ioctl.h>
34 #include <linux/if_tun.h>
38 #include <glib/garray.h>
39 #include <glib/gerror.h>
40 #include <glib/gmain.h>
41 #include <glib/gspawn.h>
43 #define CONNMAN_API_SUBJECT_TO_CHANGE
44 #include <connman/plugin.h>
45 #include <connman/device.h>
46 #include <connman/element.h>
47 #include <connman/provider.h>
48 #include <connman/log.h>
49 #include <connman/element.h>
50 #include <connman/rtnl.h>
51 #include <connman/task.h>
59 struct connman_task *task;
62 static int kill_tun(char *tun_name)
67 memset(&ifr, 0, sizeof(ifr));
68 ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
69 sprintf(ifr.ifr_name, "%s", tun_name);
71 fd = open("/dev/net/tun", O_RDWR);
74 connman_error("Failed to open /dev/net/tun to device %s: %s",
75 tun_name, strerror(errno));
79 if (ioctl(fd, TUNSETIFF, (void *)&ifr)) {
81 connman_error("Failed to TUNSETIFF for device %s to it: %s",
82 tun_name, strerror(errno));
87 if (ioctl(fd, TUNSETPERSIST, 0)) {
89 connman_error("Failed to set tun device %s nonpersistent: %s",
90 tun_name, strerror(errno));
95 DBG("Killed tun device %s", tun_name);
99 static void openconnect_died(struct connman_task *task, void *user_data)
101 struct connman_provider *provider = user_data;
102 struct oc_data *data = connman_provider_get_data(provider);
104 DBG("provider %p data %p", provider, data);
109 kill_tun(data->if_name);
110 connman_provider_set_data(provider, NULL);
111 connman_rtnl_remove_watch(data->watch);
115 connman_provider_set_connected(provider, FALSE);
116 connman_provider_set_index(provider, -1);
117 connman_provider_unref(provider);
118 connman_task_destroy(task);
121 static void vpn_newlink(unsigned flags, unsigned change, void *user_data)
123 struct connman_provider *provider = user_data;
124 struct oc_data *data = connman_provider_get_data(provider);
126 if ((data->flags & IFF_UP) != (flags & IFF_UP)) {
128 connman_provider_set_connected(provider, TRUE);
133 static void openconnect_task_notify(struct connman_task *task,
134 DBusMessage *msg, void *user_data)
136 DBusMessageIter iter, dict;
137 struct connman_provider *provider = user_data;
138 struct oc_data *data;
139 const char *reason, *key, *value;
140 const char *domain = NULL;
143 dbus_message_iter_init(msg, &iter);
145 dbus_message_iter_get_basic(&iter, &reason);
146 dbus_message_iter_next(&iter);
149 connman_error("No provider found");
153 data = connman_provider_get_data(provider);
155 DBG("provider %p no data", provider);
159 if (strcmp(reason, "connect")) {
160 connman_provider_set_connected(provider, FALSE);
164 domain = connman_provider_get_string(provider, "VPN.Domain");
166 dbus_message_iter_recurse(&iter, &dict);
168 while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
169 DBusMessageIter entry;
171 dbus_message_iter_recurse(&dict, &entry);
172 dbus_message_iter_get_basic(&entry, &key);
173 dbus_message_iter_next(&entry);
174 dbus_message_iter_get_basic(&entry, &value);
176 if (strcmp(key, "CISCO_CSTP_OPTIONS"))
177 DBG("%s = %s", key, value);
179 if (!strcmp(key, "VPNGATEWAY"))
180 connman_provider_set_string(provider, "Gateway", value);
182 if (!strcmp(key, "INTERNAL_IP4_ADDRESS"))
183 connman_provider_set_string(provider, "Address", value);
185 if (!strcmp(key, "INTERNAL_IP4_NETMASK"))
186 connman_provider_set_string(provider, "Netmask", value);
188 if (!strcmp(key, "INTERNAL_IP4_DNS"))
189 connman_provider_set_string(provider, "DNS", value);
191 if (domain == NULL && !strcmp(key, "CISCO_DEF_DOMAIN"))
194 dbus_message_iter_next(&dict);
197 index = connman_provider_get_index(provider);
198 connman_provider_set_string(provider, "Domain", domain);
199 data->watch = connman_rtnl_add_newlink_watch(index,
200 vpn_newlink, provider);
202 connman_inet_ifup(index);
205 static int oc_connect(struct connman_provider *provider)
207 struct oc_data *data = connman_provider_get_data(provider);
209 int oc_fd, fd, i, index;
210 const char *vpnhost, *vpncookie, *cafile, *mtu;
216 data = g_try_new0(struct oc_data, 1);
224 connman_provider_set_data(provider, data);
226 vpnhost = connman_provider_get_string(provider, "OpenConnect.Host");
228 connman_error("OpenConnect.Host not set; cannot enable VPN");
233 vpncookie = connman_provider_get_string(provider, "OpenConnect.Cookie");
235 connman_error("OpenConnect.Cookie not set; cannot enable VPN");
240 cafile = connman_provider_get_string(provider, "OpenConnect.CACert");
241 mtu = connman_provider_get_string(provider, "VPN.MTU");
243 fd = open("/dev/net/tun", O_RDWR);
246 connman_error("Failed to open /dev/net/tun: %s",
252 memset(&ifr, 0, sizeof(ifr));
253 ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
255 for (i = 0; i < 256; i++) {
256 sprintf(ifr.ifr_name, "vpn%d", i);
258 if (!ioctl(fd, TUNSETIFF, (void *)&ifr))
263 connman_error("Failed to find available tun device");
269 data->if_name = (char *)g_strdup(ifr.ifr_name);
270 if (!data->if_name) {
275 if (ioctl(fd, TUNSETPERSIST, 1)) {
277 connman_error("Failed to set tun persistent: %s",
286 index = connman_inet_ifindex(data->if_name);
288 connman_error("Failed to get tun ifindex");
289 kill_tun(data->if_name);
293 connman_provider_set_index(provider, index);
295 data->task = connman_task_create(OPENCONNECT);
297 if (data->task == NULL) {
299 kill_tun(data->if_name);
303 if (connman_task_set_notify(data->task, "notify",
304 openconnect_task_notify, provider)) {
306 kill_tun(data->if_name);
307 connman_task_destroy(data->task);
313 connman_task_add_argument(data->task, "--cafile",
316 connman_task_add_argument(data->task, "--mtu", (char *)mtu);
318 connman_task_add_argument(data->task, "--syslog", NULL);
319 connman_task_add_argument(data->task, "--cookie-on-stdin", NULL);
321 connman_task_add_argument(data->task, "--script",
322 SCRIPTDIR "/openconnect-script");
324 connman_task_add_argument(data->task, "--interface", data->if_name);
326 connman_task_add_argument(data->task, (char *)vpnhost, NULL);
328 ret = connman_task_run(data->task, openconnect_died, provider,
331 connman_error("Openconnect failed to start");
332 kill_tun(data->if_name);
334 connman_task_destroy(data->task);
339 DBG("openconnect started with dev %s", data->if_name);
341 if (write(oc_fd, vpncookie, strlen(vpncookie)) !=
342 (ssize_t)strlen(vpncookie) ||
343 write(oc_fd, "\n", 1) != 1) {
344 connman_error("openconnect failed to take cookie on stdin");
345 connman_provider_set_data(provider, NULL);
346 connman_task_stop(data->task);
351 connman_provider_ref(provider);
355 connman_provider_set_index(provider, -1);
356 connman_provider_set_data(provider, NULL);
362 static int oc_probe(struct connman_provider *provider)
367 static int oc_disconnect(struct connman_provider *provider)
369 struct oc_data *data = connman_provider_get_data(provider);
371 DBG("disconnect provider %p:", provider);
376 if (data->watch != 0)
377 connman_rtnl_remove_watch(data->watch);
380 connman_task_stop(data->task);
385 static int oc_remove(struct connman_provider *provider)
387 struct oc_data *data;
389 data = connman_provider_get_data(provider);
390 connman_provider_set_data(provider, NULL);
394 if (data->watch != 0)
395 connman_rtnl_remove_watch(data->watch);
397 connman_task_stop(data->task);
399 g_usleep(G_USEC_PER_SEC);
400 kill_tun(data->if_name);
404 static struct connman_provider_driver provider_driver = {
405 .name = "openconnect",
406 .disconnect = oc_disconnect,
407 .connect = oc_connect,
412 static int openconnect_init(void)
414 connman_provider_driver_register(&provider_driver);
419 static void openconnect_exit(void)
421 connman_provider_driver_unregister(&provider_driver);
424 CONNMAN_PLUGIN_DEFINE(openconnect, "OpenConnect VPN plugin", VERSION,
425 CONNMAN_PLUGIN_PRIORITY_DEFAULT, openconnect_init, openconnect_exit)