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_HOST;
103 addr = (struct sockaddr_in *) &rt.rt_dst;
104 addr->sin_family = AF_INET;
105 addr->sin_addr.s_addr = inet_addr(gateway);
107 addr = (struct sockaddr_in *) &rt.rt_gateway;
108 addr->sin_family = AF_INET;
109 addr->sin_addr.s_addr = INADDR_ANY;
111 addr = (struct sockaddr_in *) &rt.rt_genmask;
112 addr->sin_family = AF_INET;
113 addr->sin_addr.s_addr = INADDR_ANY;
115 rt.rt_dev = ifr.ifr_name;
117 err = ioctl(sk, SIOCADDRT, &rt);
119 connman_error("Setting host gateway route failed (%s)",
122 memset(&rt, 0, sizeof(rt));
123 rt.rt_flags = RTF_UP | RTF_GATEWAY;
125 addr = (struct sockaddr_in *) &rt.rt_dst;
126 addr->sin_family = AF_INET;
127 addr->sin_addr.s_addr = INADDR_ANY;
129 addr = (struct sockaddr_in *) &rt.rt_gateway;
130 addr->sin_family = AF_INET;
131 addr->sin_addr.s_addr = inet_addr(gateway);
133 addr = (struct sockaddr_in *) &rt.rt_genmask;
134 addr->sin_family = AF_INET;
135 addr->sin_addr.s_addr = INADDR_ANY;
137 err = ioctl(sk, SIOCADDRT, &rt);
139 connman_error("Setting default route failed (%s)",
147 static int del_route(struct connman_element *element, const char *gateway)
151 struct sockaddr_in *addr;
154 DBG("element %p", element);
156 sk = socket(PF_INET, SOCK_DGRAM, 0);
160 memset(&ifr, 0, sizeof(ifr));
161 ifr.ifr_ifindex = element->index;
163 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
168 DBG("ifname %s", ifr.ifr_name);
170 memset(&rt, 0, sizeof(rt));
171 rt.rt_flags = RTF_UP | RTF_GATEWAY;
173 addr = (struct sockaddr_in *) &rt.rt_dst;
174 addr->sin_family = AF_INET;
175 addr->sin_addr.s_addr = INADDR_ANY;
177 addr = (struct sockaddr_in *) &rt.rt_gateway;
178 addr->sin_family = AF_INET;
179 addr->sin_addr.s_addr = inet_addr(gateway);
181 addr = (struct sockaddr_in *) &rt.rt_genmask;
182 addr->sin_family = AF_INET;
183 addr->sin_addr.s_addr = INADDR_ANY;
185 err = ioctl(sk, SIOCDELRT, &rt);
187 connman_error("Removing default route failed (%s)",
195 static DBusConnection *connection;
197 static void emit_default_signal(struct connman_element *element)
200 DBusMessageIter entry, value;
201 const char *key = "Default";
203 signal = dbus_message_new_signal(element->path,
204 CONNMAN_CONNECTION_INTERFACE, "PropertyChanged");
208 dbus_message_iter_init_append(signal, &entry);
210 dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
212 dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
213 DBUS_TYPE_BOOLEAN_AS_STRING, &value);
214 dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
216 dbus_message_iter_close_container(&entry, &value);
218 g_dbus_send_message(connection, signal);
221 static void set_default(struct connman_element *element, gpointer user_data)
223 struct gateway_data *data = user_data;
225 DBG("element %p name %s", element, element->name);
227 if (element->index != data->index)
230 if (element->enabled == TRUE)
233 connman_element_set_enabled(element, TRUE);
234 emit_default_signal(element);
237 static void del_default(struct connman_element *element, gpointer user_data)
239 struct gateway_data *data = user_data;
241 DBG("element %p name %s", element, element->name);
243 if (element->index != data->index)
246 if (element->enabled == FALSE)
249 connman_element_set_enabled(element, FALSE);
250 emit_default_signal(element);
253 static void new_default(struct connman_element *element, gpointer user_data)
255 struct connman_service *service;
258 DBG("element %p name %s", element, element->name);
260 if (g_slist_length(gateway_list) > 0)
263 connman_element_get_value(element,
264 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
266 DBG("gateway %s", gateway);
271 if (set_route(element, gateway) < 0)
274 service = __connman_element_get_service(element);
275 __connman_service_indicate_default(service);
277 connman_element_set_enabled(element, TRUE);
278 emit_default_signal(element);
281 static void connection_newgateway(int index, const char *gateway)
283 struct gateway_data *data;
285 DBG("index %d gateway %s", index, gateway);
287 data = find_gateway(index, gateway);
291 data = g_try_new0(struct gateway_data, 1);
296 data->gateway = g_strdup(gateway);
298 gateway_list = g_slist_append(gateway_list, data);
300 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
304 static void connection_delgateway(int index, const char *gateway)
306 struct gateway_data *data;
308 DBG("index %d gateway %s", index, gateway);
310 data = find_gateway(index, gateway);
314 gateway_list = g_slist_remove(gateway_list, data);
316 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
319 g_free(data->gateway);
322 if (g_slist_length(gateway_list) > 0)
325 DBG("selecting new default gateway");
327 __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
331 static struct connman_rtnl connection_rtnl = {
332 .name = "connection",
333 .newgateway = connection_newgateway,
334 .delgateway = connection_delgateway,
337 static DBusMessage *get_properties(DBusConnection *conn,
338 DBusMessage *msg, void *data)
340 struct connman_element *element = data;
342 DBusMessageIter array, dict;
343 connman_uint8_t strength;
344 const char *device, *network;
347 DBG("conn %p", conn);
349 if (__connman_security_check_privilege(msg,
350 CONNMAN_SECURITY_PRIVILEGE_PUBLIC) < 0)
351 return __connman_error_permission_denied(msg);
353 reply = dbus_message_new_method_return(msg);
357 dbus_message_iter_init_append(reply, &array);
359 dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
360 DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
361 DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
362 DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
364 type = connman_element_get_string(element, "Type");
366 connman_dbus_dict_append_variant(&dict, "Type",
367 DBUS_TYPE_STRING, &type);
369 strength = connman_element_get_uint8(element, "Strength");
371 connman_dbus_dict_append_variant(&dict, "Strength",
372 DBUS_TYPE_BYTE, &strength);
374 if (element->devname != NULL)
375 connman_dbus_dict_append_variant(&dict, "Interface",
376 DBUS_TYPE_STRING, &element->devname);
378 connman_dbus_dict_append_variant(&dict, "Default",
379 DBUS_TYPE_BOOLEAN, &element->enabled);
381 device = __connman_element_get_device_path(element);
383 connman_dbus_dict_append_variant(&dict, "Device",
384 DBUS_TYPE_OBJECT_PATH, &device);
386 network = __connman_element_get_network_path(element);
388 connman_dbus_dict_append_variant(&dict, "Network",
389 DBUS_TYPE_OBJECT_PATH, &network);
391 __connman_element_append_ipv4(element, &dict);
393 dbus_message_iter_close_container(&array, &dict);
398 static DBusMessage *set_property(DBusConnection *conn,
399 DBusMessage *msg, void *data)
401 DBusMessageIter iter, value;
405 DBG("conn %p", conn);
407 if (dbus_message_iter_init(msg, &iter) == FALSE)
408 return __connman_error_invalid_arguments(msg);
410 dbus_message_iter_get_basic(&iter, &name);
411 dbus_message_iter_next(&iter);
412 dbus_message_iter_recurse(&iter, &value);
414 if (__connman_security_check_privilege(msg,
415 CONNMAN_SECURITY_PRIVILEGE_MODIFY) < 0)
416 return __connman_error_permission_denied(msg);
418 type = dbus_message_iter_get_arg_type(&value);
420 return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
423 static GDBusMethodTable connection_methods[] = {
424 { "GetProperties", "", "a{sv}", get_properties },
425 { "SetProperty", "sv", "", set_property },
429 static GDBusSignalTable connection_signals[] = {
430 { "PropertyChanged", "sv" },
434 static void append_connections(DBusMessageIter *entry)
436 DBusMessageIter value, iter;
437 const char *key = "Connections";
439 dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
441 dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
442 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
445 dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
446 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
447 __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
448 dbus_message_iter_close_container(&value, &iter);
450 dbus_message_iter_close_container(entry, &value);
453 static void emit_connections_signal(void)
456 DBusMessageIter entry;
458 signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
459 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
463 dbus_message_iter_init_append(signal, &entry);
465 append_connections(&entry);
467 g_dbus_send_message(connection, signal);
470 static int register_interface(struct connman_element *element)
472 DBG("element %p name %s", element, element->name);
474 if (g_dbus_register_interface(connection, element->path,
475 CONNMAN_CONNECTION_INTERFACE,
476 connection_methods, connection_signals,
477 NULL, element, NULL) == FALSE) {
478 connman_error("Failed to register %s connection", element->path);
482 emit_connections_signal();
487 static void unregister_interface(struct connman_element *element)
489 DBG("element %p name %s", element, element->name);
491 emit_connections_signal();
493 g_dbus_unregister_interface(connection, element->path,
494 CONNMAN_CONNECTION_INTERFACE);
497 static int connection_probe(struct connman_element *element)
499 struct connman_service *service;
500 const char *gateway = NULL;
502 DBG("element %p name %s", element, element->name);
504 if (element->parent == NULL)
507 if (element->parent->type != CONNMAN_ELEMENT_TYPE_IPV4)
510 connman_element_get_value(element,
511 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
513 DBG("gateway %s", gateway);
515 if (register_interface(element) < 0)
518 service = __connman_element_get_service(element);
519 __connman_service_indicate_state(service,
520 CONNMAN_SERVICE_STATE_READY);
525 if (find_gateway(element->index, gateway) != NULL) {
526 DBG("previous gateway still present");
530 if (g_slist_length(gateway_list) > 0) {
531 DBG("default gateway already present");
535 if (set_route(element, gateway) < 0)
539 service = __connman_element_get_service(element);
540 __connman_service_indicate_default(service);
542 connman_element_set_enabled(element, TRUE);
543 emit_default_signal(element);
548 static void connection_remove(struct connman_element *element)
550 struct connman_service *service;
551 const char *gateway = NULL;
553 DBG("element %p name %s", element, element->name);
555 service = __connman_element_get_service(element);
556 __connman_service_indicate_state(service,
557 CONNMAN_SERVICE_STATE_DISCONNECT);
559 unregister_interface(element);
561 connman_element_get_value(element,
562 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
564 DBG("gateway %s", gateway);
569 remove_gateway(element->index, gateway);
571 connman_element_set_enabled(element, FALSE);
572 emit_default_signal(element);
574 del_route(element, gateway);
577 static struct connman_driver connection_driver = {
578 .name = "connection",
579 .type = CONNMAN_ELEMENT_TYPE_CONNECTION,
580 .priority = CONNMAN_DRIVER_PRIORITY_LOW,
581 .probe = connection_probe,
582 .remove = connection_remove,
585 int __connman_connection_init(void)
589 connection = connman_dbus_get_connection();
591 if (connman_rtnl_register(&connection_rtnl) < 0)
592 connman_error("Failed to setup RTNL gateway driver");
594 connman_rtnl_send_getroute();
596 return connman_driver_register(&connection_driver);
599 void __connman_connection_cleanup(void)
605 connman_driver_unregister(&connection_driver);
607 connman_rtnl_unregister(&connection_rtnl);
609 for (list = gateway_list; list; list = list->next) {
610 struct gateway_data *data = list->data;
612 DBG("index %d gateway %s", data->index, data->gateway);
614 g_free(data->gateway);
619 g_slist_free(gateway_list);
622 dbus_connection_unref(connection);