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
35 struct connman_element *element;
43 static GSList *gateway_list = NULL;
45 static struct gateway_data *find_gateway(int index, const char *gateway)
52 for (list = gateway_list; list; list = list->next) {
53 struct gateway_data *data = list->data;
55 if (data->gateway == NULL)
58 if (data->index == index &&
59 g_str_equal(data->gateway, gateway) == TRUE)
66 static int del_routes(struct gateway_data *data)
70 connman_inet_del_host_route(data->index, data->gateway);
73 address = data->vpn_ip;
75 address = data->gateway;
77 return connman_inet_clear_gateway_address(data->index, address);
80 static void find_element(struct connman_element *element, gpointer user_data)
82 struct gateway_data *data = user_data;
84 DBG("element %p name %s", element, element->name);
86 if (data->element != NULL)
89 if (element->index != data->index)
92 data->element = element;
95 static struct gateway_data *add_gateway(int index, const char *gateway)
97 struct gateway_data *data;
98 struct connman_service *service;
100 data = g_try_new0(struct gateway_data, 1);
105 data->gateway = g_strdup(gateway);
106 data->active = FALSE;
107 data->element = NULL;
111 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
114 service = __connman_element_get_service(data->element);
115 data->order = __connman_service_get_order(service);
117 gateway_list = g_slist_append(gateway_list, data);
122 static void connection_newgateway(int index, const char *gateway)
124 struct gateway_data *data;
126 DBG("index %d gateway %s", index, gateway);
128 data = find_gateway(index, gateway);
135 static void set_default_gateway(struct gateway_data *data)
137 struct connman_element *element = data->element;
138 struct connman_service *service = NULL;
141 DBG("gateway %s", data->gateway);
143 if (data->vpn == TRUE) {
144 connman_inet_set_gateway_address(data->index, data->vpn_ip);
145 /* vpn gateway going away no changes in services */
149 ifflags = connman_inet_ifflags(element->index);
151 connman_error("Fail to get network interface flags");
155 if (ifflags & IFF_POINTOPOINT) {
156 if (connman_inet_set_gateway_interface(element->index) < 0)
161 connman_inet_add_host_route(element->index, data->gateway);
163 if (connman_inet_set_gateway_address(element->index, data->gateway) < 0)
167 service = __connman_element_get_service(element);
168 __connman_service_indicate_default(service);
171 static struct gateway_data *find_default_gateway(void)
173 struct gateway_data *found = NULL;
174 unsigned int order = 0;
177 for (list = gateway_list; list; list = list->next) {
178 struct gateway_data *data = list->data;
180 if (found == NULL || data->order > order) {
189 static void remove_gateway(struct gateway_data *data)
191 DBG("gateway %s", data->gateway);
193 gateway_list = g_slist_remove(gateway_list, data);
195 if (data->active == TRUE)
198 g_free(data->gateway);
199 g_free(data->vpn_ip);
203 static void connection_delgateway(int index, const char *gateway)
205 struct gateway_data *data;
207 DBG("index %d gateway %s", index, gateway);
209 data = find_gateway(index, gateway);
211 data->active = FALSE;
213 data = find_default_gateway();
215 set_default_gateway(data);
218 static struct connman_rtnl connection_rtnl = {
219 .name = "connection",
220 .newgateway = connection_newgateway,
221 .delgateway = connection_delgateway,
224 static struct gateway_data *find_active_gateway(void)
230 for (list = gateway_list; list; list = list->next) {
231 struct gateway_data *data = list->data;
232 if (data->active == TRUE)
239 static int connection_probe(struct connman_element *element)
241 struct connman_service *service = NULL;
242 const char *gateway = NULL;
243 const char *vpn_ip = NULL;
244 struct gateway_data *active_gateway = NULL;
245 struct gateway_data *new_gateway = NULL;
247 DBG("element %p name %s", element, element->name);
249 if (element->parent == NULL)
252 if (element->parent->type != CONNMAN_ELEMENT_TYPE_IPV4)
255 connman_element_get_value(element,
256 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
258 connman_element_get_value(element,
259 CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &vpn_ip);
261 DBG("gateway %s", gateway);
263 service = __connman_element_get_service(element);
264 __connman_service_indicate_state(service,
265 CONNMAN_SERVICE_STATE_READY);
267 connman_element_set_enabled(element, TRUE);
272 active_gateway = find_active_gateway();
273 new_gateway = add_gateway(element->index, gateway);
275 if (service == NULL) {
276 new_gateway->vpn = TRUE;
277 new_gateway->vpn_ip = g_strdup(vpn_ip);
278 /* make sure vpn gateway are at higher priority */
279 new_gateway->order = 10;
281 new_gateway->vpn = FALSE;
283 if (active_gateway == NULL) {
284 set_default_gateway(new_gateway);
288 if (new_gateway->vpn == TRUE) {
289 connman_inet_add_host_route(active_gateway->index,
290 active_gateway->gateway);
292 connman_inet_set_gateway_address(new_gateway->index,
293 new_gateway->gateway);
296 if (new_gateway->order >= active_gateway->order) {
297 del_routes(active_gateway);
304 static void connection_remove(struct connman_element *element)
306 struct connman_service *service;
307 const char *gateway = NULL;
308 struct gateway_data *data = NULL;
309 gboolean set_default = FALSE;
311 DBG("element %p name %s", element, element->name);
313 service = __connman_element_get_service(element);
314 __connman_service_indicate_state(service,
315 CONNMAN_SERVICE_STATE_DISCONNECT);
317 connman_element_set_enabled(element, FALSE);
319 connman_element_get_value(element,
320 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
322 DBG("gateway %s", gateway);
327 data = find_gateway(element->index, gateway);
331 set_default = data->vpn;
333 if (data->vpn == TRUE)
334 connman_inet_del_host_route(data->index, data->gateway);
336 remove_gateway(data);
338 /* with vpn this will be called after the network was deleted,
339 * we need to call set_default here because we will not recieve any
340 * gateway delete notification.
343 data = find_default_gateway();
345 set_default_gateway(data);
349 static struct connman_driver connection_driver = {
350 .name = "connection",
351 .type = CONNMAN_ELEMENT_TYPE_CONNECTION,
352 .priority = CONNMAN_DRIVER_PRIORITY_LOW,
353 .probe = connection_probe,
354 .remove = connection_remove,
357 int __connman_connection_init(void)
361 if (connman_rtnl_register(&connection_rtnl) < 0)
362 connman_error("Failed to setup RTNL gateway driver");
364 return connman_driver_register(&connection_driver);
367 void __connman_connection_cleanup(void)
373 connman_driver_unregister(&connection_driver);
375 connman_rtnl_unregister(&connection_rtnl);
377 for (list = gateway_list; list; list = list->next) {
378 struct gateway_data *data = list->data;
380 DBG("index %d gateway %s", data->index, data->gateway);
382 g_free(data->gateway);
387 g_slist_free(gateway_list);
391 static void update_order(void)
395 for (list = gateway_list; list; list = list->next) {
396 struct gateway_data *data = list->data;
397 struct connman_service *service;
399 /* vpn gataway is not attached to a service. */
403 service = __connman_element_get_service(data->element);
404 data->order = __connman_service_get_order(service);
408 gboolean __connman_connection_update_gateway(void)
410 struct gateway_data *active_gateway, *default_gateway;
411 gboolean updated = FALSE;
415 active_gateway = find_active_gateway();
416 default_gateway = find_default_gateway();
418 if (active_gateway && active_gateway != default_gateway) {
419 del_routes(active_gateway);