*
* Connection Manager
*
- * Copyright (C) 2007-2009 Intel Corporation. All rights reserved.
+ * Copyright (C) 2007-2010 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include <config.h>
#endif
+#include <string.h>
+#include <net/if.h>
+
+#include <gdbus.h>
+
#include "connman.h"
+struct gateway_data {
+ int index;
+ char *ipv4_gateway;
+ struct connman_element *element;
+ unsigned int order;
+ gboolean active;
+ /* VPN extra data */
+ gboolean vpn;
+ char *vpn_ip;
+ int vpn_phy_index;
+};
+
+static GSList *gateway_list = NULL;
+
+static struct gateway_data *find_gateway(int index, const char *gateway)
+{
+ GSList *list;
+
+ if (gateway == NULL)
+ return NULL;
+
+ for (list = gateway_list; list; list = list->next) {
+ struct gateway_data *data = list->data;
+
+ if (data->ipv4_gateway == NULL)
+ continue;
+
+ if (data->index == index &&
+ g_str_equal(data->ipv4_gateway, gateway)
+ == TRUE)
+ return data;
+ }
+
+ return NULL;
+}
+
+static int del_routes(struct gateway_data *data)
+{
+ if (data->vpn) {
+ if (data->vpn_phy_index >= 0)
+ connman_inet_del_host_route(data->vpn_phy_index,
+ data->ipv4_gateway);
+ return connman_inet_clear_gateway_address(data->index,
+ data->vpn_ip);
+ } else if (g_strcmp0(data->ipv4_gateway, "0.0.0.0") == 0) {
+ return connman_inet_clear_gateway_interface(data->index);
+ } else {
+ connman_inet_del_host_route(data->index, data->ipv4_gateway);
+ return connman_inet_clear_gateway_address(data->index,
+ data->ipv4_gateway);
+ }
+}
+
+static void find_element(struct connman_element *element, gpointer user_data)
+{
+ struct gateway_data *data = user_data;
+
+ DBG("element %p name %s", element, element->name);
+
+ if (data->element != NULL)
+ return;
+
+ if (element->index != data->index)
+ return;
+
+ data->element = element;
+}
+
+static struct gateway_data *add_gateway(int index, const char *gateway)
+{
+ struct gateway_data *data;
+ struct connman_service *service;
+
+ if (strlen(gateway) == 0)
+ return NULL;
+
+ data = g_try_new0(struct gateway_data, 1);
+ if (data == NULL)
+ return NULL;
+
+ data->index = index;
+ data->ipv4_gateway = g_strdup(gateway);
+ data->active = FALSE;
+ data->element = NULL;
+ data->vpn_ip = NULL;
+ data->vpn = FALSE;
+ data->vpn_phy_index = -1;
+
+ __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION,
+ find_element, data);
+
+ service = __connman_element_get_service(data->element);
+ data->order = __connman_service_get_order(service);
+
+ gateway_list = g_slist_append(gateway_list, data);
+
+ return data;
+}
+
+static void connection_newgateway(int index, const char *gateway)
+{
+ struct gateway_data *data;
+
+ DBG("index %d gateway %s", index, gateway);
+
+ data = find_gateway(index, gateway);
+ if (data == NULL)
+ return;
+
+ data->active = TRUE;
+}
+
+static void set_default_gateway(struct gateway_data *data)
+{
+ struct connman_element *element = data->element;
+ struct connman_service *service = NULL;
+
+ DBG("gateway %s", data->ipv4_gateway);
+
+ if (data->vpn == TRUE) {
+ connman_inet_set_gateway_address(data->index, data->vpn_ip);
+ data->active = TRUE;
+ /* vpn gateway going away no changes in services */
+ return;
+ }
+
+ if (g_strcmp0(data->ipv4_gateway, "0.0.0.0") == 0) {
+ if (connman_inet_set_gateway_interface(element->index) < 0)
+ return;
+ goto done;
+ }
+
+ if (connman_inet_set_gateway_address(element->index,
+ data->ipv4_gateway) < 0)
+ return;
+
+done:
+ service = __connman_element_get_service(element);
+ __connman_service_indicate_default(service);
+}
+
+static struct gateway_data *find_default_gateway(void)
+{
+ struct gateway_data *found = NULL;
+ unsigned int order = 0;
+ GSList *list;
+
+ for (list = gateway_list; list; list = list->next) {
+ struct gateway_data *data = list->data;
+
+ if (found == NULL || data->order > order) {
+ found = data;
+ order = data->order;
+ }
+ }
+
+ return found;
+}
+
+static int remove_gateway(struct gateway_data *data)
+{
+ int err;
+
+ DBG("gateway %s", data->ipv4_gateway);
+
+ gateway_list = g_slist_remove(gateway_list, data);
+
+ if (data->active == TRUE)
+ err = del_routes(data);
+ else
+ err = 0;
+
+ g_free(data->ipv4_gateway);
+ g_free(data->vpn_ip);
+ g_free(data);
+
+ return err;
+}
+
+static void connection_delgateway(int index, const char *gateway)
+{
+ struct gateway_data *data;
+
+ DBG("index %d gateway %s", index, gateway);
+
+ data = find_gateway(index, gateway);
+ if (data != NULL)
+ data->active = FALSE;
+
+ data = find_default_gateway();
+ if (data != NULL)
+ set_default_gateway(data);
+}
+
+static struct connman_rtnl connection_rtnl = {
+ .name = "connection",
+ .newgateway = connection_newgateway,
+ .delgateway = connection_delgateway,
+};
+
+static struct gateway_data *find_active_gateway(void)
+{
+ GSList *list;
+
+ DBG("");
+
+ for (list = gateway_list; list; list = list->next) {
+ struct gateway_data *data = list->data;
+
+ if (data->active == TRUE)
+ return data;
+ }
+
+ return NULL;
+}
+
static int connection_probe(struct connman_element *element)
{
+ struct connman_service *service = NULL;
+ const char *gateway = NULL;
+ const char *vpn_ip = NULL;
+ struct gateway_data *active_gateway = NULL;
+ struct gateway_data *new_gateway = NULL;
+
DBG("element %p name %s", element, element->name);
+ if (element->parent == NULL)
+ return -ENODEV;
+
+ /* FIXME: Remove temporarily for the static gateway support */
+ /* if (element->parent->type != CONNMAN_ELEMENT_TYPE_IPV4)
+ return -ENODEV; */
+
+ connman_element_get_value(element,
+ CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
+
+ connman_element_get_value(element,
+ CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &vpn_ip);
+
+ DBG("gateway %s", gateway);
+
+ /*
+ * If gateway is NULL, it's a point to point link and the default
+ * gateway is 0.0.0.0, meaning the interface.
+ */
+ if (gateway == NULL) {
+ gateway = "0.0.0.0";
+ element->ipv4.gateway = g_strdup(gateway);
+ }
+
+ connman_element_set_enabled(element, TRUE);
+
+ active_gateway = find_active_gateway();
+ new_gateway = add_gateway(element->index, gateway);
+ if (new_gateway == NULL)
+ return 0;
+
+ service = __connman_element_get_service(element);
+
+ connman_inet_add_host_route(element->index,
+ new_gateway->ipv4_gateway, NULL);
+ __connman_service_nameserver_add_routes(service,
+ new_gateway->ipv4_gateway);
+
+ __connman_service_indicate_state(service, CONNMAN_SERVICE_STATE_READY);
+
+ if (service == NULL) {
+ new_gateway->vpn = TRUE;
+ new_gateway->vpn_ip = g_strdup(vpn_ip);
+ /* make sure vpn gateway are at higher priority */
+ new_gateway->order = 10;
+ if (active_gateway)
+ new_gateway->vpn_phy_index = active_gateway->index;
+ } else
+ new_gateway->vpn = FALSE;
+
+ if (active_gateway == NULL) {
+ set_default_gateway(new_gateway);
+ return 0;
+ }
+
+ if (new_gateway->vpn == TRUE) {
+ connman_inet_add_host_route(active_gateway->index,
+ new_gateway->ipv4_gateway,
+ active_gateway->ipv4_gateway);
+ }
+
+ if (new_gateway->order >= active_gateway->order) {
+ del_routes(active_gateway);
+ return 0;
+ }
+
return 0;
}
static void connection_remove(struct connman_element *element)
{
+ struct connman_service *service;
+ const char *gateway = NULL;
+ struct gateway_data *data = NULL;
+ gboolean set_default = FALSE;
+ int err;
+
DBG("element %p name %s", element, element->name);
+
+ service = __connman_element_get_service(element);
+ __connman_service_nameserver_del_routes(service);
+ __connman_service_indicate_state(service,
+ CONNMAN_SERVICE_STATE_DISCONNECT);
+
+ connman_element_set_enabled(element, FALSE);
+
+ connman_element_get_value(element,
+ CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
+
+ DBG("gateway %s", gateway);
+
+ if (gateway == NULL)
+ return;
+
+ data = find_gateway(element->index, gateway);
+ if (data == NULL)
+ return;
+
+ set_default = data->vpn;
+
+ if (data->vpn == TRUE && data->vpn_phy_index >= 0)
+ connman_inet_del_host_route(data->vpn_phy_index,
+ data->ipv4_gateway);
+ err = remove_gateway(data);
+
+ /* with vpn this will be called after the network was deleted,
+ * we need to call set_default here because we will not recieve any
+ * gateway delete notification.
+ * We hit the same issue if remove_gateway() fails.
+ */
+ if (set_default || err < 0) {
+ data = find_default_gateway();
+ if (data != NULL)
+ set_default_gateway(data);
+ }
}
static struct connman_driver connection_driver = {
.remove = connection_remove,
};
-static DBusConnection *connection;
-
int __connman_connection_init(void)
{
DBG("");
- connection = connman_dbus_get_connection();
+ if (connman_rtnl_register(&connection_rtnl) < 0)
+ connman_error("Failed to setup RTNL gateway driver");
return connman_driver_register(&connection_driver);
}
void __connman_connection_cleanup(void)
{
+ GSList *list;
+
DBG("");
connman_driver_unregister(&connection_driver);
- dbus_connection_unref(connection);
+ connman_rtnl_unregister(&connection_rtnl);
+
+ for (list = gateway_list; list; list = list->next) {
+ struct gateway_data *data = list->data;
+
+ DBG("index %d gateway %s", data->index, data->ipv4_gateway);
+
+ g_free(data->ipv4_gateway);
+ g_free(data);
+ list->data = NULL;
+ }
+
+ g_slist_free(gateway_list);
+ gateway_list = NULL;
+}
+
+static void update_order(void)
+{
+ GSList *list = NULL;
+
+ for (list = gateway_list; list; list = list->next) {
+ struct gateway_data *data = list->data;
+ struct connman_service *service;
+
+ /* vpn gataway is not attached to a service. */
+ if (data->vpn)
+ continue;
+
+ service = __connman_element_get_service(data->element);
+ data->order = __connman_service_get_order(service);
+ }
+}
+
+gboolean __connman_connection_update_gateway(void)
+{
+ struct gateway_data *active_gateway, *default_gateway;
+ gboolean updated = FALSE;
+
+ update_order();
+
+ active_gateway = find_active_gateway();
+ default_gateway = find_default_gateway();
+
+ if (active_gateway && active_gateway != default_gateway) {
+ del_routes(active_gateway);
+ updated = TRUE;
+ }
+
+ return updated;
}
projects / platform / upstream / connman.git / blobdiff