src/notifier.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
   6  *
   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.
  10  *
  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.
  15  *
  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
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <gdbus.h>
  27
  28 #include "connman.h"
  29
  30 static DBusConnection *connection = NULL;
  31
  32 static GSList *notifier_list = NULL;
  33
  34 static gint compare_priority(gconstpointer a, gconstpointer b)
  35 {
  36         const struct connman_notifier *notifier1 = a;
  37         const struct connman_notifier *notifier2 = b;
  38
  39         return notifier2->priority - notifier1->priority;
  40 }
  41
  42 /**
  43  * connman_notifier_register:
  44  * @notifier: notifier module
  45  *
  46  * Register a new notifier module
  47  *
  48  * Returns: %0 on success
  49  */
  50 int connman_notifier_register(struct connman_notifier *notifier)
  51 {
  52         DBG("notifier %p name %s", notifier, notifier->name);
  53
  54         notifier_list = g_slist_insert_sorted(notifier_list, notifier,
  55                                                         compare_priority);
  56
  57         return 0;
  58 }
  59
  60 /**
  61  * connman_notifier_unregister:
  62  * @notifier: notifier module
  63  *
  64  * Remove a previously registered notifier module
  65  */
  66 void connman_notifier_unregister(struct connman_notifier *notifier)
  67 {
  68         DBG("notifier %p name %s", notifier, notifier->name);
  69
  70         notifier_list = g_slist_remove(notifier_list, notifier);
  71 }
  72
  73 static void technology_enabled(enum connman_device_type type,
  74                                                 connman_bool_t enabled)
  75 {
  76         GSList *list;
  77         DBusMessage *signal;
  78         DBusMessageIter entry, value, iter;
  79         const char *key = "EnabledTechnologies";
  80
  81         DBG("type %d enabled %d", type, enabled);
  82
  83         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
  84                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
  85         if (signal == NULL)
  86                 goto done;
  87
  88         dbus_message_iter_init_append(signal, &entry);
  89
  90         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
  91
  92         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
  93                         DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING,
  94                                                                 &value);
  95
  96         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
  97                                         DBUS_TYPE_STRING_AS_STRING, &iter);
  98         __connman_notifier_list(TRUE, &iter);
  99         dbus_message_iter_close_container(&value, &iter);
 100
 101         dbus_message_iter_close_container(&entry, &value);
 102
 103         g_dbus_send_message(connection, signal);
 104
 105 done:
 106         for (list = notifier_list; list; list = list->next) {
 107                 struct connman_notifier *notifier = list->data;
 108
 109                 if (notifier->device_enabled)
 110                         notifier->device_enabled(type, enabled);
 111         }
 112 }
 113
 114 static void technology_registered(enum connman_service_type type,
 115                                                 connman_bool_t registered)
 116 {
 117         DBusMessage *signal;
 118         DBusMessageIter entry, value, iter;
 119         const char *key = "Technologies";
 120
 121         DBG("type %d registered %d", type, registered);
 122
 123         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 124                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
 125         if (signal == NULL)
 126                 return;
 127
 128         dbus_message_iter_init_append(signal, &entry);
 129
 130         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 131
 132         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 133                         DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING,
 134                                                                 &value);
 135
 136         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 137                                         DBUS_TYPE_STRING_AS_STRING, &iter);
 138         __connman_notifier_list(FALSE, &iter);
 139         dbus_message_iter_close_container(&value, &iter);
 140
 141         dbus_message_iter_close_container(&entry, &value);
 142
 143         g_dbus_send_message(connection, signal);
 144 }
 145
 146 static const char *type2string(enum connman_service_type type)
 147 {
 148         switch (type) {
 149         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 150                 break;
 151         case CONNMAN_SERVICE_TYPE_ETHERNET:
 152                 return "ethernet";
 153         case CONNMAN_SERVICE_TYPE_WIFI:
 154                 return "wifi";
 155         case CONNMAN_SERVICE_TYPE_WIMAX:
 156                 return "wimax";
 157         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 158                 return "bluetooth";
 159         case CONNMAN_SERVICE_TYPE_CELLULAR:
 160                 return "cellular";
 161         }
 162
 163         return NULL;
 164 }
 165
 166 static volatile gint registered[10];
 167 static volatile gint enabled[10];
 168
 169 void __connman_notifier_list(gboolean powered, DBusMessageIter *iter)
 170 {
 171         int i;
 172
 173         for (i = 0; i < 10; i++) {
 174                 const char *type = type2string(i);
 175                 gint count;
 176
 177                 if (type == NULL)
 178                         continue;
 179
 180                 if (powered == TRUE)
 181                         count = g_atomic_int_get(&enabled[i]);
 182                 else
 183                         count = g_atomic_int_get(&registered[i]);
 184
 185                 if (count > 0)
 186                         dbus_message_iter_append_basic(iter,
 187                                                 DBUS_TYPE_STRING, &type);
 188         }
 189 }
 190
 191 void __connman_notifier_register(enum connman_service_type type)
 192 {
 193         DBG("type %d", type);
 194
 195         switch (type) {
 196         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 197                 return;
 198         case CONNMAN_SERVICE_TYPE_ETHERNET:
 199         case CONNMAN_SERVICE_TYPE_WIFI:
 200         case CONNMAN_SERVICE_TYPE_WIMAX:
 201         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 202         case CONNMAN_SERVICE_TYPE_CELLULAR:
 203                 break;
 204         }
 205
 206         if (g_atomic_int_exchange_and_add(&registered[type], 1) == 0)
 207                 technology_registered(type, TRUE);
 208 }
 209
 210 void __connman_notifier_unregister(enum connman_service_type type)
 211 {
 212         DBG("type %d", type);
 213
 214         switch (type) {
 215         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 216                 return;
 217         case CONNMAN_SERVICE_TYPE_ETHERNET:
 218         case CONNMAN_SERVICE_TYPE_WIFI:
 219         case CONNMAN_SERVICE_TYPE_WIMAX:
 220         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 221         case CONNMAN_SERVICE_TYPE_CELLULAR:
 222                 break;
 223         }
 224
 225         if (g_atomic_int_dec_and_test(&registered[type]) == TRUE)
 226                 technology_registered(type, FALSE);
 227 }
 228
 229 void __connman_notifier_enable(enum connman_service_type type)
 230 {
 231         DBG("type %d", type);
 232
 233         switch (type) {
 234         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 235                 return;
 236         case CONNMAN_SERVICE_TYPE_ETHERNET:
 237         case CONNMAN_SERVICE_TYPE_WIFI:
 238         case CONNMAN_SERVICE_TYPE_WIMAX:
 239         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 240         case CONNMAN_SERVICE_TYPE_CELLULAR:
 241                 break;
 242         }
 243
 244         if (g_atomic_int_exchange_and_add(&enabled[type], 1) == 0)
 245                 technology_enabled(type, TRUE);
 246 }
 247
 248 void __connman_notifier_disable(enum connman_service_type type)
 249 {
 250         DBG("type %d", type);
 251
 252         switch (type) {
 253         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 254                 return;
 255         case CONNMAN_SERVICE_TYPE_ETHERNET:
 256         case CONNMAN_SERVICE_TYPE_WIFI:
 257         case CONNMAN_SERVICE_TYPE_WIMAX:
 258         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 259         case CONNMAN_SERVICE_TYPE_CELLULAR:
 260                 break;
 261         }
 262
 263         if (g_atomic_int_dec_and_test(&enabled[type]) == TRUE)
 264                 technology_enabled(type, FALSE);
 265 }
 266
 267 void __connman_notifier_offline_mode(connman_bool_t enabled)
 268 {
 269         GSList *list;
 270
 271         DBG("enabled %d", enabled);
 272
 273         __connman_profile_changed(FALSE);
 274
 275         for (list = notifier_list; list; list = list->next) {
 276                 struct connman_notifier *notifier = list->data;
 277
 278                 if (notifier->offline_mode)
 279                         notifier->offline_mode(enabled);
 280         }
 281 }
 282
 283 int __connman_notifier_init(void)
 284 {
 285         DBG("");
 286
 287         connection = connman_dbus_get_connection();
 288
 289         return 0;
 290 }
 291
 292 void __connman_notifier_cleanup(void)
 293 {
 294         DBG("");
 295
 296         dbus_connection_unref(connection);
 297 }