5 * Copyright (C) 2007-2009 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
29 #include <sys/ioctl.h>
30 #include <arpa/inet.h>
32 #include <net/route.h>
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 void remove_gateway(int index, const char *gateway)
68 struct gateway_data *data;
70 data = find_gateway(index, gateway);
74 gateway_list = g_slist_remove(gateway_list, data);
77 static int set_route(struct connman_element *element, const char *gateway)
81 struct sockaddr_in *addr;
84 DBG("element %p", element);
86 sk = socket(PF_INET, SOCK_DGRAM, 0);
90 memset(&ifr, 0, sizeof(ifr));
91 ifr.ifr_ifindex = element->index;
93 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
98 DBG("ifname %s", ifr.ifr_name);
100 memset(&rt, 0, sizeof(rt));
101 rt.rt_flags = RTF_UP | RTF_GATEWAY;
103 addr = (struct sockaddr_in *) &rt.rt_dst;
104 addr->sin_family = AF_INET;
105 addr->sin_addr.s_addr = INADDR_ANY;
107 addr = (struct sockaddr_in *) &rt.rt_gateway;
108 addr->sin_family = AF_INET;
109 addr->sin_addr.s_addr = inet_addr(gateway);
111 addr = (struct sockaddr_in *) &rt.rt_genmask;
112 addr->sin_family = AF_INET;
113 addr->sin_addr.s_addr = INADDR_ANY;
115 err = ioctl(sk, SIOCADDRT, &rt);
117 DBG("default route setting failed (%s)", strerror(errno));
124 static int del_route(struct connman_element *element, const char *gateway)
128 struct sockaddr_in *addr;
131 DBG("element %p", element);
133 sk = socket(PF_INET, SOCK_DGRAM, 0);
137 memset(&ifr, 0, sizeof(ifr));
138 ifr.ifr_ifindex = element->index;
140 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
145 DBG("ifname %s", ifr.ifr_name);
147 memset(&rt, 0, sizeof(rt));
148 rt.rt_flags = RTF_UP | RTF_GATEWAY;
150 addr = (struct sockaddr_in *) &rt.rt_dst;
151 addr->sin_family = AF_INET;
152 addr->sin_addr.s_addr = INADDR_ANY;
154 addr = (struct sockaddr_in *) &rt.rt_gateway;
155 addr->sin_family = AF_INET;
156 addr->sin_addr.s_addr = inet_addr(gateway);
158 addr = (struct sockaddr_in *) &rt.rt_genmask;
159 addr->sin_family = AF_INET;
160 addr->sin_addr.s_addr = INADDR_ANY;
162 err = ioctl(sk, SIOCDELRT, &rt);
164 DBG("default route removal failed (%s)", strerror(errno));
171 static DBusConnection *connection;
173 static void emit_default_signal(struct connman_element *element)
176 DBusMessageIter entry, value;
177 const char *key = "Default";
179 signal = dbus_message_new_signal(element->path,
180 CONNMAN_CONNECTION_INTERFACE, "PropertyChanged");
184 dbus_message_iter_init_append(signal, &entry);
186 dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
188 dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
189 DBUS_TYPE_BOOLEAN_AS_STRING, &value);
190 dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
192 dbus_message_iter_close_container(&entry, &value);
194 g_dbus_send_message(connection, signal);
197 static void set_default(struct connman_element *element, gpointer user_data)
199 struct gateway_data *data = user_data;
201 DBG("element %p name %s", element, element->name);
203 if (element->index != data->index)
206 if (element->enabled == TRUE)
209 connman_element_set_enabled(element, TRUE);
210 emit_default_signal(element);
213 static void del_default(struct connman_element *element, gpointer user_data)
215 struct gateway_data *data = user_data;
217 DBG("element %p name %s", element, element->name);
219 if (element->index != data->index)
222 if (element->enabled == FALSE)
225 connman_element_set_enabled(element, FALSE);
226 emit_default_signal(element);
229 static void new_default(struct connman_element *element, gpointer user_data)
233 DBG("element %p name %s", element, element->name);
235 if (g_slist_length(gateway_list) > 0)
238 connman_element_get_value(element,
239 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
241 DBG("gateway %s", gateway);
246 set_route(element, gateway);
248 connman_element_set_enabled(element, TRUE);
249 emit_default_signal(element);
252 static void connection_newgateway(int index, const char *gateway)
254 struct gateway_data *data;
256 DBG("index %d gateway %s", index, gateway);
258 data = find_gateway(index, gateway);
262 data = g_try_new0(struct gateway_data, 1);
267 data->gateway = g_strdup(gateway);
269 gateway_list = g_slist_append(gateway_list, data);
271 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
275 static void connection_delgateway(int index, const char *gateway)
277 struct gateway_data *data;
279 DBG("index %d gateway %s", index, gateway);
281 data = find_gateway(index, gateway);
285 gateway_list = g_slist_remove(gateway_list, data);
287 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
290 g_free(data->gateway);
293 if (g_slist_length(gateway_list) > 0)
296 DBG("selecting new default gateway");
298 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
302 static struct connman_rtnl connection_rtnl = {
303 .name = "connection",
304 .newgateway = connection_newgateway,
305 .delgateway = connection_delgateway,
308 static DBusMessage *get_properties(DBusConnection *conn,
309 DBusMessage *msg, void *data)
311 struct connman_element *element = data;
313 DBusMessageIter array, dict;
314 connman_uint8_t strength;
315 const char *device, *network;
318 DBG("conn %p", conn);
320 if (__connman_security_check_privilege(msg,
321 CONNMAN_SECURITY_PRIVILEGE_PUBLIC) < 0)
322 return __connman_error_permission_denied(msg);
324 reply = dbus_message_new_method_return(msg);
328 dbus_message_iter_init_append(reply, &array);
330 dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
331 DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
332 DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
333 DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
335 type = connman_element_get_string(element, "Type");
337 connman_dbus_dict_append_variant(&dict, "Type",
338 DBUS_TYPE_STRING, &type);
340 strength = connman_element_get_uint8(element, "Strength");
342 connman_dbus_dict_append_variant(&dict, "Strength",
343 DBUS_TYPE_BYTE, &strength);
345 if (element->devname != NULL)
346 connman_dbus_dict_append_variant(&dict, "Interface",
347 DBUS_TYPE_STRING, &element->devname);
349 connman_dbus_dict_append_variant(&dict, "Default",
350 DBUS_TYPE_BOOLEAN, &element->enabled);
352 device = __connman_element_get_device_path(element);
354 connman_dbus_dict_append_variant(&dict, "Device",
355 DBUS_TYPE_OBJECT_PATH, &device);
357 network = __connman_element_get_network_path(element);
359 connman_dbus_dict_append_variant(&dict, "Network",
360 DBUS_TYPE_OBJECT_PATH, &network);
362 __connman_element_append_ipv4(element, &dict);
364 dbus_message_iter_close_container(&array, &dict);
369 static DBusMessage *set_property(DBusConnection *conn,
370 DBusMessage *msg, void *data)
372 DBusMessageIter iter, value;
376 DBG("conn %p", conn);
378 if (dbus_message_iter_init(msg, &iter) == FALSE)
379 return __connman_error_invalid_arguments(msg);
381 dbus_message_iter_get_basic(&iter, &name);
382 dbus_message_iter_next(&iter);
383 dbus_message_iter_recurse(&iter, &value);
385 if (__connman_security_check_privilege(msg,
386 CONNMAN_SECURITY_PRIVILEGE_MODIFY) < 0)
387 return __connman_error_permission_denied(msg);
389 type = dbus_message_iter_get_arg_type(&value);
391 return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
394 static GDBusMethodTable connection_methods[] = {
395 { "GetProperties", "", "a{sv}", get_properties },
396 { "SetProperty", "sv", "", set_property },
400 static GDBusSignalTable connection_signals[] = {
401 { "PropertyChanged", "sv" },
405 static void append_connections(DBusMessageIter *entry)
407 DBusMessageIter value, iter;
408 const char *key = "Connections";
410 dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
412 dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
413 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
416 dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
417 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
418 __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
419 dbus_message_iter_close_container(&value, &iter);
421 dbus_message_iter_close_container(entry, &value);
424 static void emit_connections_signal(void)
427 DBusMessageIter entry;
429 signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
430 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
434 dbus_message_iter_init_append(signal, &entry);
436 append_connections(&entry);
438 g_dbus_send_message(connection, signal);
441 static int register_interface(struct connman_element *element)
443 DBG("element %p name %s", element, element->name);
445 if (g_dbus_register_interface(connection, element->path,
446 CONNMAN_CONNECTION_INTERFACE,
447 connection_methods, connection_signals,
448 NULL, element, NULL) == FALSE) {
449 connman_error("Failed to register %s connection", element->path);
453 emit_connections_signal();
458 static void unregister_interface(struct connman_element *element)
460 DBG("element %p name %s", element, element->name);
462 emit_connections_signal();
464 g_dbus_unregister_interface(connection, element->path,
465 CONNMAN_CONNECTION_INTERFACE);
468 static int connection_probe(struct connman_element *element)
470 struct connman_service *service;
471 const char *gateway = NULL;
473 DBG("element %p name %s", element, element->name);
475 if (element->parent == NULL)
478 if (element->parent->type != CONNMAN_ELEMENT_TYPE_IPV4)
481 connman_element_get_value(element,
482 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
484 DBG("gateway %s", gateway);
486 if (register_interface(element) < 0)
489 service = __connman_element_get_service(element);
490 __connman_service_indicate_state(service,
491 CONNMAN_SERVICE_STATE_READY);
496 if (find_gateway(element->index, gateway) != NULL) {
497 DBG("previous gateway still present");
501 if (g_slist_length(gateway_list) > 0) {
502 DBG("default gateway already present");
506 set_route(element, gateway);
509 connman_element_set_enabled(element, TRUE);
510 emit_default_signal(element);
515 static void connection_remove(struct connman_element *element)
517 struct connman_service *service;
518 const char *gateway = NULL;
520 DBG("element %p name %s", element, element->name);
522 service = __connman_element_get_service(element);
523 __connman_service_indicate_state(service,
524 CONNMAN_SERVICE_STATE_DISCONNECT);
526 unregister_interface(element);
528 connman_element_get_value(element,
529 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
531 DBG("gateway %s", gateway);
536 remove_gateway(element->index, gateway);
538 connman_element_set_enabled(element, FALSE);
539 emit_default_signal(element);
541 del_route(element, gateway);
544 static struct connman_driver connection_driver = {
545 .name = "connection",
546 .type = CONNMAN_ELEMENT_TYPE_CONNECTION,
547 .priority = CONNMAN_DRIVER_PRIORITY_LOW,
548 .probe = connection_probe,
549 .remove = connection_remove,
552 int __connman_connection_init(void)
556 connection = connman_dbus_get_connection();
558 if (connman_rtnl_register(&connection_rtnl) < 0)
559 connman_error("Failed to setup RTNL gateway driver");
561 connman_rtnl_send_getroute();
563 return connman_driver_register(&connection_driver);
566 void __connman_connection_cleanup(void)
572 connman_driver_unregister(&connection_driver);
574 connman_rtnl_unregister(&connection_rtnl);
576 for (list = gateway_list; list; list = list->next) {
577 struct gateway_data *data = list->data;
579 DBG("index %d gateway %s", data->index, data->gateway);
581 g_free(data->gateway);
586 g_slist_free(gateway_list);
589 dbus_connection_unref(connection);