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 connman_error("Setting default route failed (%s)",
125 static int del_route(struct connman_element *element, const char *gateway)
129 struct sockaddr_in *addr;
132 DBG("element %p", element);
134 sk = socket(PF_INET, SOCK_DGRAM, 0);
138 memset(&ifr, 0, sizeof(ifr));
139 ifr.ifr_ifindex = element->index;
141 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
146 DBG("ifname %s", ifr.ifr_name);
148 memset(&rt, 0, sizeof(rt));
149 rt.rt_flags = RTF_UP | RTF_GATEWAY;
151 addr = (struct sockaddr_in *) &rt.rt_dst;
152 addr->sin_family = AF_INET;
153 addr->sin_addr.s_addr = INADDR_ANY;
155 addr = (struct sockaddr_in *) &rt.rt_gateway;
156 addr->sin_family = AF_INET;
157 addr->sin_addr.s_addr = inet_addr(gateway);
159 addr = (struct sockaddr_in *) &rt.rt_genmask;
160 addr->sin_family = AF_INET;
161 addr->sin_addr.s_addr = INADDR_ANY;
163 err = ioctl(sk, SIOCDELRT, &rt);
165 connman_error("Removing default route failed (%s)",
173 static DBusConnection *connection;
175 static void emit_default_signal(struct connman_element *element)
178 DBusMessageIter entry, value;
179 const char *key = "Default";
181 signal = dbus_message_new_signal(element->path,
182 CONNMAN_CONNECTION_INTERFACE, "PropertyChanged");
186 dbus_message_iter_init_append(signal, &entry);
188 dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
190 dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
191 DBUS_TYPE_BOOLEAN_AS_STRING, &value);
192 dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
194 dbus_message_iter_close_container(&entry, &value);
196 g_dbus_send_message(connection, signal);
199 static void set_default(struct connman_element *element, gpointer user_data)
201 struct gateway_data *data = user_data;
203 DBG("element %p name %s", element, element->name);
205 if (element->index != data->index)
208 if (element->enabled == TRUE)
211 connman_element_set_enabled(element, TRUE);
212 emit_default_signal(element);
215 static void del_default(struct connman_element *element, gpointer user_data)
217 struct gateway_data *data = user_data;
219 DBG("element %p name %s", element, element->name);
221 if (element->index != data->index)
224 if (element->enabled == FALSE)
227 connman_element_set_enabled(element, FALSE);
228 emit_default_signal(element);
231 static void new_default(struct connman_element *element, gpointer user_data)
233 struct connman_service *service;
236 DBG("element %p name %s", element, element->name);
238 if (g_slist_length(gateway_list) > 0)
241 connman_element_get_value(element,
242 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
244 DBG("gateway %s", gateway);
249 if (set_route(element, gateway) < 0)
252 service = __connman_element_get_service(element);
253 __connman_service_indicate_default(service);
255 connman_element_set_enabled(element, TRUE);
256 emit_default_signal(element);
259 static void connection_newgateway(int index, const char *gateway)
261 struct gateway_data *data;
263 DBG("index %d gateway %s", index, gateway);
265 data = find_gateway(index, gateway);
269 data = g_try_new0(struct gateway_data, 1);
274 data->gateway = g_strdup(gateway);
276 gateway_list = g_slist_append(gateway_list, data);
278 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
282 static void connection_delgateway(int index, const char *gateway)
284 struct gateway_data *data;
286 DBG("index %d gateway %s", index, gateway);
288 data = find_gateway(index, gateway);
292 gateway_list = g_slist_remove(gateway_list, data);
294 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
297 g_free(data->gateway);
300 if (g_slist_length(gateway_list) > 0)
303 DBG("selecting new default gateway");
305 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
309 static struct connman_rtnl connection_rtnl = {
310 .name = "connection",
311 .newgateway = connection_newgateway,
312 .delgateway = connection_delgateway,
315 static DBusMessage *get_properties(DBusConnection *conn,
316 DBusMessage *msg, void *data)
318 struct connman_element *element = data;
320 DBusMessageIter array, dict;
321 connman_uint8_t strength;
322 const char *device, *network;
325 DBG("conn %p", conn);
327 if (__connman_security_check_privilege(msg,
328 CONNMAN_SECURITY_PRIVILEGE_PUBLIC) < 0)
329 return __connman_error_permission_denied(msg);
331 reply = dbus_message_new_method_return(msg);
335 dbus_message_iter_init_append(reply, &array);
337 dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
338 DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
339 DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
340 DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
342 type = connman_element_get_string(element, "Type");
344 connman_dbus_dict_append_variant(&dict, "Type",
345 DBUS_TYPE_STRING, &type);
347 strength = connman_element_get_uint8(element, "Strength");
349 connman_dbus_dict_append_variant(&dict, "Strength",
350 DBUS_TYPE_BYTE, &strength);
352 if (element->devname != NULL)
353 connman_dbus_dict_append_variant(&dict, "Interface",
354 DBUS_TYPE_STRING, &element->devname);
356 connman_dbus_dict_append_variant(&dict, "Default",
357 DBUS_TYPE_BOOLEAN, &element->enabled);
359 device = __connman_element_get_device_path(element);
361 connman_dbus_dict_append_variant(&dict, "Device",
362 DBUS_TYPE_OBJECT_PATH, &device);
364 network = __connman_element_get_network_path(element);
366 connman_dbus_dict_append_variant(&dict, "Network",
367 DBUS_TYPE_OBJECT_PATH, &network);
369 __connman_element_append_ipv4(element, &dict);
371 dbus_message_iter_close_container(&array, &dict);
376 static DBusMessage *set_property(DBusConnection *conn,
377 DBusMessage *msg, void *data)
379 DBusMessageIter iter, value;
383 DBG("conn %p", conn);
385 if (dbus_message_iter_init(msg, &iter) == FALSE)
386 return __connman_error_invalid_arguments(msg);
388 dbus_message_iter_get_basic(&iter, &name);
389 dbus_message_iter_next(&iter);
390 dbus_message_iter_recurse(&iter, &value);
392 if (__connman_security_check_privilege(msg,
393 CONNMAN_SECURITY_PRIVILEGE_MODIFY) < 0)
394 return __connman_error_permission_denied(msg);
396 type = dbus_message_iter_get_arg_type(&value);
398 return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
401 static GDBusMethodTable connection_methods[] = {
402 { "GetProperties", "", "a{sv}", get_properties },
403 { "SetProperty", "sv", "", set_property },
407 static GDBusSignalTable connection_signals[] = {
408 { "PropertyChanged", "sv" },
412 static void append_connections(DBusMessageIter *entry)
414 DBusMessageIter value, iter;
415 const char *key = "Connections";
417 dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
419 dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
420 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
423 dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
424 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
425 __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
426 dbus_message_iter_close_container(&value, &iter);
428 dbus_message_iter_close_container(entry, &value);
431 static void emit_connections_signal(void)
434 DBusMessageIter entry;
436 signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
437 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
441 dbus_message_iter_init_append(signal, &entry);
443 append_connections(&entry);
445 g_dbus_send_message(connection, signal);
448 static int register_interface(struct connman_element *element)
450 DBG("element %p name %s", element, element->name);
452 if (g_dbus_register_interface(connection, element->path,
453 CONNMAN_CONNECTION_INTERFACE,
454 connection_methods, connection_signals,
455 NULL, element, NULL) == FALSE) {
456 connman_error("Failed to register %s connection", element->path);
460 emit_connections_signal();
465 static void unregister_interface(struct connman_element *element)
467 DBG("element %p name %s", element, element->name);
469 emit_connections_signal();
471 g_dbus_unregister_interface(connection, element->path,
472 CONNMAN_CONNECTION_INTERFACE);
475 static int connection_probe(struct connman_element *element)
477 struct connman_service *service;
478 const char *gateway = NULL;
480 DBG("element %p name %s", element, element->name);
482 if (element->parent == NULL)
485 if (element->parent->type != CONNMAN_ELEMENT_TYPE_IPV4)
488 connman_element_get_value(element,
489 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
491 DBG("gateway %s", gateway);
493 if (register_interface(element) < 0)
496 service = __connman_element_get_service(element);
497 __connman_service_indicate_state(service,
498 CONNMAN_SERVICE_STATE_READY);
503 if (find_gateway(element->index, gateway) != NULL) {
504 DBG("previous gateway still present");
508 if (g_slist_length(gateway_list) > 0) {
509 DBG("default gateway already present");
513 if (set_route(element, gateway) < 0)
517 service = __connman_element_get_service(element);
518 __connman_service_indicate_default(service);
520 connman_element_set_enabled(element, TRUE);
521 emit_default_signal(element);
526 static void connection_remove(struct connman_element *element)
528 struct connman_service *service;
529 const char *gateway = NULL;
531 DBG("element %p name %s", element, element->name);
533 service = __connman_element_get_service(element);
534 __connman_service_indicate_state(service,
535 CONNMAN_SERVICE_STATE_DISCONNECT);
537 unregister_interface(element);
539 connman_element_get_value(element,
540 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
542 DBG("gateway %s", gateway);
547 remove_gateway(element->index, gateway);
549 connman_element_set_enabled(element, FALSE);
550 emit_default_signal(element);
552 del_route(element, gateway);
555 static struct connman_driver connection_driver = {
556 .name = "connection",
557 .type = CONNMAN_ELEMENT_TYPE_CONNECTION,
558 .priority = CONNMAN_DRIVER_PRIORITY_LOW,
559 .probe = connection_probe,
560 .remove = connection_remove,
563 int __connman_connection_init(void)
567 connection = connman_dbus_get_connection();
569 if (connman_rtnl_register(&connection_rtnl) < 0)
570 connman_error("Failed to setup RTNL gateway driver");
572 connman_rtnl_send_getroute();
574 return connman_driver_register(&connection_driver);
577 void __connman_connection_cleanup(void)
583 connman_driver_unregister(&connection_driver);
585 connman_rtnl_unregister(&connection_rtnl);
587 for (list = gateway_list; list; list = list->next) {
588 struct gateway_data *data = list->data;
590 DBG("index %d gateway %s", data->index, data->gateway);
592 g_free(data->gateway);
597 g_slist_free(gateway_list);
600 dbus_connection_unref(connection);