plugins/dundee.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2012  BMW Car IT GmbH. 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 <errno.h>
  27
  28 #include <gdbus.h>
  29
  30 #define CONNMAN_API_SUBJECT_TO_CHANGE
  31 #include <connman/plugin.h>
  32 #include <connman/device.h>
  33 #include <connman/network.h>
  34 #include <connman/dbus.h>
  35
  36 #define DUNDEE_SERVICE                  "org.ofono.dundee"
  37 #define DUNDEE_MANAGER_INTERFACE        DUNDEE_SERVICE ".Manager"
  38
  39 #define DEVICE_ADDED                    "DeviceAdded"
  40 #define DEVICE_REMOVED                  "DeviceRemoved"
  41
  42 static DBusConnection *connection;
  43
  44 static GHashTable *dundee_devices = NULL;
  45
  46 struct dundee_data {
  47         char *path;
  48 };
  49
  50 static void device_destroy(gpointer data)
  51 {
  52         struct dundee_data *info = data;
  53
  54         g_free(info->path);
  55
  56         g_free(info);
  57 }
  58
  59 static int network_probe(struct connman_network *network)
  60 {
  61         DBG("network %p", network);
  62
  63         return 0;
  64 }
  65
  66 static void network_remove(struct connman_network *network)
  67 {
  68         DBG("network %p", network);
  69 }
  70
  71 static int network_connect(struct connman_network *network)
  72 {
  73         DBG("network %p", network);
  74
  75         return 0;
  76 }
  77
  78 static int network_disconnect(struct connman_network *network)
  79 {
  80         DBG("network %p", network);
  81
  82         return 0;
  83 }
  84
  85 static struct connman_network_driver network_driver = {
  86         .name           = "network",
  87         .type           = CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN,
  88         .probe          = network_probe,
  89         .remove         = network_remove,
  90         .connect        = network_connect,
  91         .disconnect     = network_disconnect,
  92 };
  93
  94 static int dundee_probe(struct connman_device *device)
  95 {
  96         DBG("device %p", device);
  97
  98         return 0;
  99 }
 100
 101 static void dundee_remove(struct connman_device *device)
 102 {
 103         DBG("device %p", device);
 104 }
 105
 106 static int dundee_enable(struct connman_device *device)
 107 {
 108         DBG("device %p", device);
 109
 110         return 0;
 111 }
 112
 113 static int dundee_disable(struct connman_device *device)
 114 {
 115         DBG("device %p", device);
 116
 117         return 0;
 118 }
 119
 120 static struct connman_device_driver dundee_driver = {
 121         .name           = "dundee",
 122         .type           = CONNMAN_DEVICE_TYPE_BLUETOOTH,
 123         .probe          = dundee_probe,
 124         .remove         = dundee_remove,
 125         .enable         = dundee_enable,
 126         .disable        = dundee_disable,
 127 };
 128
 129 static void add_device(const char *path, DBusMessageIter *properties)
 130 {
 131         struct dundee_data *info;
 132
 133         info = g_hash_table_lookup(dundee_devices, path);
 134         if (info != NULL)
 135                 return;
 136
 137         info = g_try_new0(struct dundee_data, 1);
 138         if (info == NULL)
 139                 return;
 140
 141         info->path = g_strdup(path);
 142
 143         g_hash_table_insert(dundee_devices, g_strdup(path), info);
 144 }
 145
 146 static gboolean device_added(DBusConnection *connection, DBusMessage *message,
 147                                 void *user_data)
 148 {
 149         DBusMessageIter iter, properties;
 150         const char *path;
 151         const char *signature = DBUS_TYPE_OBJECT_PATH_AS_STRING
 152                 DBUS_TYPE_ARRAY_AS_STRING
 153                 DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 154                 DBUS_TYPE_STRING_AS_STRING
 155                 DBUS_TYPE_VARIANT_AS_STRING
 156                 DBUS_DICT_ENTRY_END_CHAR_AS_STRING;
 157
 158         if (dbus_message_has_signature(message, signature) == FALSE) {
 159                 connman_error("dundee signature does not match");
 160                 return TRUE;
 161         }
 162
 163         DBG("");
 164
 165         if (dbus_message_iter_init(message, &iter) == FALSE)
 166                 return TRUE;
 167
 168         dbus_message_iter_get_basic(&iter, &path);
 169
 170         dbus_message_iter_next(&iter);
 171         dbus_message_iter_recurse(&iter, &properties);
 172
 173         add_device(path, &properties);
 174
 175         return TRUE;
 176 }
 177
 178 static void remove_device(DBusConnection *connection, const char *path)
 179 {
 180         DBG("path %s", path);
 181
 182         g_hash_table_remove(dundee_devices, path);
 183 }
 184
 185 static gboolean device_removed(DBusConnection *connection, DBusMessage *message,
 186                                 void *user_data)
 187 {
 188         const char *path;
 189         const char *signature = DBUS_TYPE_OBJECT_PATH_AS_STRING;
 190
 191         if (dbus_message_has_signature(message, signature) == FALSE) {
 192                 connman_error("dundee signature does not match");
 193                 return TRUE;
 194         }
 195
 196         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 197                                 DBUS_TYPE_INVALID);
 198         remove_device(connection, path);
 199         return TRUE;
 200 }
 201
 202 static void dundee_connect(DBusConnection *connection, void *user_data)
 203 {
 204         DBG("connection %p", connection);
 205
 206         dundee_devices = g_hash_table_new_full(g_str_hash, g_str_equal,
 207                                         g_free, device_destroy);
 208 }
 209
 210 static void dundee_disconnect(DBusConnection *connection, void *user_data)
 211 {
 212         DBG("connection %p", connection);
 213
 214         g_hash_table_destroy(dundee_devices);
 215         dundee_devices = NULL;
 216 }
 217
 218 static guint watch;
 219 static guint added_watch;
 220 static guint removed_watch;
 221
 222 static int dundee_init(void)
 223 {
 224         int err;
 225
 226         connection = connman_dbus_get_connection();
 227         if (connection == NULL)
 228                 return -EIO;
 229
 230         watch = g_dbus_add_service_watch(connection, DUNDEE_SERVICE,
 231                         dundee_connect, dundee_disconnect, NULL, NULL);
 232
 233         added_watch = g_dbus_add_signal_watch(connection, NULL, NULL,
 234                                                 DUNDEE_MANAGER_INTERFACE,
 235                                                 DEVICE_ADDED, device_added,
 236                                                 NULL, NULL);
 237
 238         removed_watch = g_dbus_add_signal_watch(connection, NULL, NULL,
 239                                                 DUNDEE_MANAGER_INTERFACE,
 240                                                 DEVICE_REMOVED, device_removed,
 241                                                 NULL, NULL);
 242
 243         if (watch == 0 || added_watch == 0 || removed_watch == 0) {
 244                 err = -EIO;
 245                 goto remove;
 246         }
 247
 248         err = connman_network_driver_register(&network_driver);
 249         if (err < 0)
 250                 goto remove;
 251
 252         err = connman_device_driver_register(&dundee_driver);
 253         if (err < 0) {
 254                 connman_network_driver_unregister(&network_driver);
 255                 goto remove;
 256         }
 257
 258         return 0;
 259
 260 remove:
 261         g_dbus_remove_watch(connection, watch);
 262         g_dbus_remove_watch(connection, added_watch);
 263         g_dbus_remove_watch(connection, removed_watch);
 264
 265         dbus_connection_unref(connection);
 266
 267         return err;
 268 }
 269
 270 static void dundee_exit(void)
 271 {
 272         g_dbus_remove_watch(connection, watch);
 273         g_dbus_remove_watch(connection, added_watch);
 274         g_dbus_remove_watch(connection, removed_watch);
 275
 276         connman_device_driver_unregister(&dundee_driver);
 277         connman_network_driver_unregister(&network_driver);
 278
 279         dbus_connection_unref(connection);
 280 }
 281
 282 CONNMAN_PLUGIN_DEFINE(dundee, "Dundee plugin", VERSION,
 283                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, dundee_init, dundee_exit)