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 int set_route(struct connman_element *element, const char *gateway)
70 struct sockaddr_in *addr;
73 DBG("element %p", element);
75 sk = socket(PF_INET, SOCK_DGRAM, 0);
79 memset(&ifr, 0, sizeof(ifr));
80 ifr.ifr_ifindex = element->index;
82 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
87 DBG("ifname %s", ifr.ifr_name);
89 memset(&rt, 0, sizeof(rt));
90 rt.rt_flags = RTF_UP | RTF_GATEWAY;
92 addr = (struct sockaddr_in *) &rt.rt_dst;
93 addr->sin_family = AF_INET;
94 addr->sin_addr.s_addr = INADDR_ANY;
96 addr = (struct sockaddr_in *) &rt.rt_gateway;
97 addr->sin_family = AF_INET;
98 addr->sin_addr.s_addr = inet_addr(gateway);
100 addr = (struct sockaddr_in *) &rt.rt_genmask;
101 addr->sin_family = AF_INET;
102 addr->sin_addr.s_addr = INADDR_ANY;
104 err = ioctl(sk, SIOCADDRT, &rt);
106 DBG("default route setting failed (%s)", strerror(errno));
113 static int del_route(struct connman_element *element, const char *gateway)
117 struct sockaddr_in *addr;
120 DBG("element %p", element);
122 sk = socket(PF_INET, SOCK_DGRAM, 0);
126 memset(&ifr, 0, sizeof(ifr));
127 ifr.ifr_ifindex = element->index;
129 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
134 DBG("ifname %s", ifr.ifr_name);
136 memset(&rt, 0, sizeof(rt));
137 rt.rt_flags = RTF_UP | RTF_GATEWAY;
139 addr = (struct sockaddr_in *) &rt.rt_dst;
140 addr->sin_family = AF_INET;
141 addr->sin_addr.s_addr = INADDR_ANY;
143 addr = (struct sockaddr_in *) &rt.rt_gateway;
144 addr->sin_family = AF_INET;
145 addr->sin_addr.s_addr = inet_addr(gateway);
147 addr = (struct sockaddr_in *) &rt.rt_genmask;
148 addr->sin_family = AF_INET;
149 addr->sin_addr.s_addr = INADDR_ANY;
151 err = ioctl(sk, SIOCDELRT, &rt);
153 DBG("default route removal failed (%s)", strerror(errno));
160 static DBusConnection *connection;
162 static void emit_default_signal(struct connman_element *element)
165 DBusMessageIter entry, value;
166 const char *key = "Default";
168 signal = dbus_message_new_signal(element->path,
169 CONNMAN_CONNECTION_INTERFACE, "PropertyChanged");
173 dbus_message_iter_init_append(signal, &entry);
175 dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
177 dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
178 DBUS_TYPE_BOOLEAN_AS_STRING, &value);
179 dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
181 dbus_message_iter_close_container(&entry, &value);
183 g_dbus_send_message(connection, signal);
186 static void set_default(struct connman_element *element, gpointer user_data)
188 struct gateway_data *data = user_data;
190 DBG("element %p name %s", element, element->name);
192 if (element->index != data->index)
195 if (element->enabled == TRUE)
198 connman_element_set_enabled(element, TRUE);
199 emit_default_signal(element);
202 static void del_default(struct connman_element *element, gpointer user_data)
204 struct gateway_data *data = user_data;
206 DBG("element %p name %s", element, element->name);
208 if (element->index != data->index)
211 if (element->enabled == FALSE)
214 connman_element_set_enabled(element, FALSE);
215 emit_default_signal(element);
218 static void new_default(struct connman_element *element, gpointer user_data)
222 DBG("element %p name %s", element, element->name);
224 if (g_slist_length(gateway_list) > 0)
227 connman_element_get_value(element,
228 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
230 DBG("gateway %s", gateway);
235 set_route(element, gateway);
237 connman_element_set_enabled(element, TRUE);
238 emit_default_signal(element);
241 static void connection_newgateway(int index, const char *gateway)
243 struct gateway_data *data;
245 DBG("index %d gateway %s", index, gateway);
247 data = find_gateway(index, gateway);
251 data = g_try_new0(struct gateway_data, 1);
256 data->gateway = g_strdup(gateway);
258 gateway_list = g_slist_append(gateway_list, data);
260 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
264 static void connection_delgateway(int index, const char *gateway)
266 struct gateway_data *data;
268 DBG("index %d gateway %s", index, gateway);
270 data = find_gateway(index, gateway);
274 gateway_list = g_slist_remove(gateway_list, data);
276 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
279 g_free(data->gateway);
282 if (g_slist_length(gateway_list) > 0)
285 DBG("selecting new default gateway");
287 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
291 static struct connman_rtnl connection_rtnl = {
292 .name = "connection",
293 .newgateway = connection_newgateway,
294 .delgateway = connection_delgateway,
297 static DBusMessage *get_properties(DBusConnection *conn,
298 DBusMessage *msg, void *data)
300 struct connman_element *element = data;
302 DBusMessageIter array, dict;
303 connman_uint8_t strength;
304 const char *device, *network;
307 DBG("conn %p", conn);
309 if (__connman_security_check_privilege(msg,
310 CONNMAN_SECURITY_PRIVILEGE_PUBLIC) < 0)
311 return __connman_error_permission_denied(msg);
313 reply = dbus_message_new_method_return(msg);
317 dbus_message_iter_init_append(reply, &array);
319 dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
320 DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
321 DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
322 DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
324 type = connman_element_get_string(element, "Type");
326 connman_dbus_dict_append_variant(&dict, "Type",
327 DBUS_TYPE_STRING, &type);
329 strength = connman_element_get_uint8(element, "Strength");
331 connman_dbus_dict_append_variant(&dict, "Strength",
332 DBUS_TYPE_BYTE, &strength);
334 if (element->devname != NULL)
335 connman_dbus_dict_append_variant(&dict, "Interface",
336 DBUS_TYPE_STRING, &element->devname);
338 connman_dbus_dict_append_variant(&dict, "Default",
339 DBUS_TYPE_BOOLEAN, &element->enabled);
341 device = __connman_element_get_device(element);
343 connman_dbus_dict_append_variant(&dict, "Device",
344 DBUS_TYPE_OBJECT_PATH, &device);
346 network = __connman_element_get_network(element);
348 connman_dbus_dict_append_variant(&dict, "Network",
349 DBUS_TYPE_OBJECT_PATH, &network);
351 __connman_element_append_ipv4(element, &dict);
353 dbus_message_iter_close_container(&array, &dict);
358 static DBusMessage *set_property(DBusConnection *conn,
359 DBusMessage *msg, void *data)
361 DBusMessageIter iter, value;
365 DBG("conn %p", conn);
367 if (dbus_message_iter_init(msg, &iter) == FALSE)
368 return __connman_error_invalid_arguments(msg);
370 dbus_message_iter_get_basic(&iter, &name);
371 dbus_message_iter_next(&iter);
372 dbus_message_iter_recurse(&iter, &value);
374 if (__connman_security_check_privilege(msg,
375 CONNMAN_SECURITY_PRIVILEGE_MODIFY) < 0)
376 return __connman_error_permission_denied(msg);
378 type = dbus_message_iter_get_arg_type(&value);
380 return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
383 static GDBusMethodTable connection_methods[] = {
384 { "GetProperties", "", "a{sv}", get_properties },
385 { "SetProperty", "sv", "", set_property },
389 static GDBusSignalTable connection_signals[] = {
390 { "PropertyChanged", "sv" },
394 static void append_connections(DBusMessageIter *entry)
396 DBusMessageIter value, iter;
397 const char *key = "Connections";
399 dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
401 dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
402 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
405 dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
406 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
407 __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
408 dbus_message_iter_close_container(&value, &iter);
410 dbus_message_iter_close_container(entry, &value);
413 static void emit_connections_signal(void)
416 DBusMessageIter entry;
418 signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
419 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
423 dbus_message_iter_init_append(signal, &entry);
425 append_connections(&entry);
427 g_dbus_send_message(connection, signal);
430 static int register_interface(struct connman_element *element)
432 DBG("element %p name %s", element, element->name);
434 if (g_dbus_register_interface(connection, element->path,
435 CONNMAN_CONNECTION_INTERFACE,
436 connection_methods, connection_signals,
437 NULL, element, NULL) == FALSE) {
438 connman_error("Failed to register %s connection", element->path);
442 emit_connections_signal();
447 static void unregister_interface(struct connman_element *element)
449 DBG("element %p name %s", element, element->name);
451 emit_connections_signal();
453 g_dbus_unregister_interface(connection, element->path,
454 CONNMAN_CONNECTION_INTERFACE);
457 static int connection_probe(struct connman_element *element)
459 const char *gateway = NULL;
461 DBG("element %p name %s", element, element->name);
463 if (element->parent == NULL)
466 if (element->parent->type != CONNMAN_ELEMENT_TYPE_IPV4)
469 connman_element_get_value(element,
470 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
472 DBG("gateway %s", gateway);
474 if (register_interface(element) < 0)
480 if (find_gateway(element->index, gateway) != NULL) {
481 DBG("previous gateway still present");
485 if (g_slist_length(gateway_list) > 0) {
486 DBG("default gateway already present");
490 set_route(element, gateway);
493 connman_element_set_enabled(element, TRUE);
494 emit_default_signal(element);
499 static void connection_remove(struct connman_element *element)
501 const char *gateway = NULL;
503 DBG("element %p name %s", element, element->name);
505 unregister_interface(element);
507 connman_element_get_value(element,
508 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
510 DBG("gateway %s", gateway);
515 connman_element_set_enabled(element, FALSE);
516 emit_default_signal(element);
518 del_route(element, gateway);
521 static struct connman_driver connection_driver = {
522 .name = "connection",
523 .type = CONNMAN_ELEMENT_TYPE_CONNECTION,
524 .priority = CONNMAN_DRIVER_PRIORITY_LOW,
525 .probe = connection_probe,
526 .remove = connection_remove,
529 int __connman_connection_init(void)
533 connection = connman_dbus_get_connection();
535 if (connman_rtnl_register(&connection_rtnl) < 0)
536 connman_error("Failed to setup RTNL gateway driver");
538 connman_rtnl_send_getroute();
540 return connman_driver_register(&connection_driver);
543 void __connman_connection_cleanup(void)
549 connman_driver_unregister(&connection_driver);
551 connman_rtnl_unregister(&connection_rtnl);
553 for (list = gateway_list; list; list = list->next) {
554 struct gateway_data *data = list->data;
556 DBG("index %d gateway %s", data->index, data->gateway);
558 g_free(data->gateway);
563 g_slist_free(gateway_list);
566 dbus_connection_unref(connection);