plugins/nmcompat.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  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 #define CONNMAN_API_SUBJECT_TO_CHANGE
  29 #include <connman/plugin.h>
  30 #include <connman/log.h>
  31 #include <connman/notifier.h>
  32 #include <connman/dbus.h>
  33
  34 enum {
  35         NM_STATE_UNKNOWN          = 0,
  36         NM_STATE_ASLEEP           = 10,
  37         NM_STATE_DISCONNECTED     = 20,
  38         NM_STATE_DISCONNECTING    = 30,
  39         NM_STATE_CONNECTING       = 40,
  40         NM_STATE_CONNECTED_LOCAL  = 50,
  41         NM_STATE_CONNECTED_SITE   = 60,
  42         NM_STATE_CONNECTED_GLOBAL = 70
  43 };
  44
  45 #define NM_SERVICE    "org.freedesktop.NetworkManager"
  46 #define NM_PATH       "/org/freedesktop/NetworkManager"
  47 #define NM_INTERFACE  NM_SERVICE
  48
  49 #define DBUS_PROPERTIES_INTERFACE       "org.freedesktop.DBus.Properties"
  50
  51 static DBusConnection *connection = NULL;
  52 static struct connman_service *current_service = NULL;
  53 static dbus_uint32_t nm_state = NM_STATE_UNKNOWN;
  54
  55 static void state_changed(dbus_uint32_t state)
  56 {
  57         DBusMessage *signal;
  58
  59         DBG("state %d", state);
  60
  61         signal = dbus_message_new_signal(NM_PATH, NM_INTERFACE,
  62                                                 "StateChanged");
  63         if (signal == NULL)
  64                 return;
  65
  66         dbus_message_append_args(signal, DBUS_TYPE_UINT32, &state,
  67                                                 DBUS_TYPE_INVALID);
  68
  69         g_dbus_send_message(connection, signal);
  70 }
  71
  72 static void properties_changed(dbus_uint32_t state)
  73 {
  74         const char *key = "State";
  75         DBusMessageIter iter, dict, dict_entry, dict_val;
  76         DBusMessage *signal;
  77
  78         DBG("state %d", state);
  79
  80         signal = dbus_message_new_signal(NM_PATH, NM_INTERFACE,
  81                                                 "PropertiesChanged");
  82         if (signal == NULL)
  83                 return;
  84
  85         dbus_message_iter_init_append(signal, &iter);
  86
  87         dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
  88                                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
  89                                         DBUS_TYPE_STRING_AS_STRING
  90                                         DBUS_TYPE_VARIANT_AS_STRING
  91                                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING,
  92                                         &dict);
  93
  94         dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
  95                                                         NULL, &dict_entry);
  96
  97         dbus_message_iter_append_basic(&dict_entry, DBUS_TYPE_STRING, &key);
  98
  99         dbus_message_iter_open_container(&dict_entry, DBUS_TYPE_VARIANT,
 100                                         DBUS_TYPE_UINT32_AS_STRING, &dict_val);
 101
 102         dbus_message_iter_append_basic(&dict_val, DBUS_TYPE_UINT32, &state);
 103
 104         dbus_message_iter_close_container(&dict_entry, &dict_val);
 105         dbus_message_iter_close_container(&dict, &dict_entry);
 106         dbus_message_iter_close_container(&iter, &dict);
 107
 108         g_dbus_send_message(connection, signal);
 109 }
 110
 111 static void default_changed(struct connman_service *service)
 112 {
 113         DBG("service %p", service);
 114
 115         if (service == NULL)
 116                 nm_state = NM_STATE_DISCONNECTED;
 117         else
 118                 nm_state = NM_STATE_CONNECTED_LOCAL;
 119
 120         state_changed(nm_state);
 121         properties_changed(nm_state);
 122
 123         current_service = service;
 124 }
 125
 126 static void service_state_changed(struct connman_service *service,
 127                                         enum connman_service_state state)
 128 {
 129         DBG("service %p state %d", service, state);
 130
 131         if (current_service == NULL || current_service != service)
 132                 return;
 133
 134         switch (state) {
 135         case CONNMAN_SERVICE_STATE_UNKNOWN:
 136                 nm_state = NM_STATE_UNKNOWN;
 137                 break;
 138         case CONNMAN_SERVICE_STATE_FAILURE:
 139         case CONNMAN_SERVICE_STATE_IDLE:
 140                 nm_state = NM_STATE_DISCONNECTED;
 141                 break;
 142         case CONNMAN_SERVICE_STATE_ASSOCIATION:
 143         case CONNMAN_SERVICE_STATE_CONFIGURATION:
 144                 nm_state = NM_STATE_CONNECTING;
 145                 break;
 146         case CONNMAN_SERVICE_STATE_READY:
 147                 nm_state = NM_STATE_CONNECTED_LOCAL;
 148                 break;
 149         case CONNMAN_SERVICE_STATE_ONLINE:
 150                 nm_state = NM_STATE_CONNECTED_GLOBAL;
 151                 break;
 152         case CONNMAN_SERVICE_STATE_DISCONNECT:
 153                 nm_state = NM_STATE_DISCONNECTING;
 154                 break;
 155         }
 156
 157         state_changed(nm_state);
 158         properties_changed(nm_state);
 159 }
 160
 161 static void offline_mode(connman_bool_t enabled)
 162 {
 163         DBG("enabled %d", enabled);
 164
 165         if (enabled == TRUE)
 166                 nm_state = NM_STATE_ASLEEP;
 167         else
 168                 nm_state = NM_STATE_DISCONNECTED;
 169
 170         state_changed(nm_state);
 171         properties_changed(nm_state);
 172
 173         current_service = NULL;
 174 }
 175
 176 static struct connman_notifier notifier = {
 177         .name                   = "nmcompat",
 178         .priority               = CONNMAN_NOTIFIER_PRIORITY_DEFAULT,
 179         .default_changed        = default_changed,
 180         .service_state_changed  = service_state_changed,
 181         .offline_mode           = offline_mode,
 182 };
 183
 184 static DBusMessage *property_get(DBusConnection *conn,
 185                                         DBusMessage *msg, void *data)
 186 {
 187         const char *interface, *key;
 188
 189         dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &interface,
 190                                 DBUS_TYPE_STRING, &key, DBUS_TYPE_INVALID);
 191
 192         DBG("interface %s property %s", interface, key);
 193
 194         if (g_str_equal(interface, NM_INTERFACE) == FALSE)
 195                 return dbus_message_new_error(msg, DBUS_ERROR_FAILED,
 196                                                 "Unsupported interface");
 197
 198         if (g_str_equal(key, "State") == TRUE) {
 199                 DBusMessage *reply;
 200                 DBusMessageIter iter, value;
 201
 202                 DBG("state %d", nm_state);
 203
 204                 reply = dbus_message_new_method_return(msg);
 205                 if (reply == NULL)
 206                         return NULL;
 207
 208                 dbus_message_iter_init_append(reply, &iter);
 209
 210                 dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
 211                                         DBUS_TYPE_UINT32_AS_STRING, &value);
 212                 dbus_message_iter_append_basic(&value,
 213                                                 DBUS_TYPE_UINT32, &nm_state);
 214                 dbus_message_iter_close_container(&iter, &value);
 215
 216                 return reply;
 217         }
 218
 219         return dbus_message_new_error(msg, DBUS_ERROR_FAILED,
 220                                                 "Unsupported property");
 221 }
 222
 223 static const GDBusMethodTable methods[] = {
 224         { "Get", "ss",  "v",   property_get     },
 225         { },
 226 };
 227
 228 static const GDBusSignalTable signals[] = {
 229         { "PropertiesChanged",  "a{sv}" },
 230         { "StateChanged",       "u"     },
 231         { },
 232 };
 233
 234 static int nmcompat_init(void)
 235 {
 236         DBG("");
 237
 238         connection = connman_dbus_get_connection();
 239         if (connection == NULL)
 240                 return -1;
 241
 242         if (g_dbus_request_name(connection, NM_SERVICE, NULL) == FALSE) {
 243                 connman_error("nmcompat: failed to register service");
 244                 return -1;
 245         }
 246
 247         if (connman_notifier_register(&notifier) < 0) {
 248                 connman_error("nmcompat: failed to register notifier");
 249                 return -1;
 250         }
 251
 252         if (g_dbus_register_interface(connection, NM_PATH,
 253                                 DBUS_PROPERTIES_INTERFACE,
 254                                 methods, signals, NULL, NULL, NULL) == FALSE) {
 255                 connman_error("nmcompat: failed to register "
 256                                                 DBUS_PROPERTIES_INTERFACE);
 257                 return -1;
 258         }
 259
 260         return 0;
 261 }
 262
 263 static void nmcompat_exit(void)
 264 {
 265         DBG("");
 266
 267         connman_notifier_unregister(&notifier);
 268
 269         if (connection == NULL)
 270                 return;
 271
 272         g_dbus_unregister_interface(connection, NM_PATH,
 273                                         DBUS_PROPERTIES_INTERFACE);
 274
 275         dbus_connection_unref(connection);
 276 }
 277
 278 CONNMAN_PLUGIN_DEFINE(nmcompat, "NetworkManager compatibility interfaces",
 279                         VERSION, CONNMAN_PLUGIN_PRIORITY_DEFAULT,
 280                         nmcompat_init, nmcompat_exit)