plugins/nmcompat.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  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_STATE_CONNECTED NM_STATE_CONNECTED_GLOBAL
  46
  47 #define NM_SERVICE    "org.freedesktop.NetworkManager"
  48 #define NM_PATH       "/org/freedesktop/NetworkManager"
  49 #define NM_INTERFACE  NM_SERVICE
  50
  51 #define DBUS_PROPERTIES_INTERFACE       "org.freedesktop.DBus.Properties"
  52
  53 static DBusConnection *connection = NULL;
  54 static dbus_uint32_t state = NM_STATE_UNKNOWN;
  55
  56 static void state_changed(dbus_uint32_t state)
  57 {
  58         DBusMessage *signal;
  59
  60         signal = dbus_message_new_signal(NM_PATH, NM_INTERFACE,
  61                                                 "StateChanged");
  62         if (signal == NULL)
  63                 return;
  64
  65         dbus_message_append_args(signal, DBUS_TYPE_UINT32, &state,
  66                                 DBUS_TYPE_INVALID);
  67
  68         g_dbus_send_message(connection, signal);
  69 }
  70
  71 static void properties_changed(dbus_uint32_t state)
  72 {
  73         const char *key = "State";
  74         DBusMessageIter iter, dict, dict_entry, dict_val;
  75         DBusMessage *signal;
  76
  77         signal = dbus_message_new_signal(NM_PATH, NM_INTERFACE,
  78                                                 "PropertiesChanged");
  79         if (signal == NULL)
  80                 return;
  81
  82         dbus_message_iter_init_append(signal, &iter);
  83
  84         dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
  85                                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
  86                                         DBUS_TYPE_STRING_AS_STRING
  87                                         DBUS_TYPE_VARIANT_AS_STRING
  88                                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING,
  89                                         &dict);
  90
  91         dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
  92                                                         NULL, &dict_entry);
  93
  94         dbus_message_iter_append_basic(&dict_entry, DBUS_TYPE_STRING, &key);
  95
  96         dbus_message_iter_open_container(&dict_entry, DBUS_TYPE_VARIANT,
  97                                         DBUS_TYPE_UINT32_AS_STRING, &dict_val);
  98
  99         dbus_message_iter_append_basic(&dict_val, DBUS_TYPE_UINT32, &state);
 100
 101         dbus_message_iter_close_container(&dict_entry, &dict_val);
 102         dbus_message_iter_close_container(&dict, &dict_entry);
 103         dbus_message_iter_close_container(&iter, &dict);
 104
 105         g_dbus_send_message(connection, signal);
 106 }
 107
 108 static void default_changed(struct connman_service *service)
 109 {
 110         if (service != NULL)
 111                 state = NM_STATE_CONNECTED;
 112         else
 113                 state = NM_STATE_DISCONNECTED;
 114
 115         DBG("%p %d", service, state);
 116
 117         state_changed(state);
 118
 119         properties_changed(state);
 120 }
 121
 122 static struct connman_notifier notifier = {
 123         .name           = "nmcompat",
 124         .priority       = CONNMAN_NOTIFIER_PRIORITY_DEFAULT,
 125         .default_changed= default_changed,
 126 };
 127
 128 static DBusMessage *property_get(DBusConnection *conn,
 129                                         DBusMessage *msg, void *data)
 130 {
 131         const char *interface, *key;
 132
 133         DBG("conn %p", conn);
 134
 135         dbus_message_get_args(msg, NULL,
 136                                 DBUS_TYPE_STRING, &interface,
 137                                 DBUS_TYPE_STRING, &key,
 138                                 DBUS_TYPE_INVALID);
 139
 140         DBG("interface %s property %s", interface, key);
 141
 142         if (g_strcmp0(key, "State") == 0) {
 143                 DBusMessage *reply;
 144                 DBusMessageIter iter, value;
 145
 146                 reply = dbus_message_new_method_return(msg);
 147                 if (reply == NULL)
 148                         return NULL;
 149
 150                 dbus_message_iter_init_append(reply, &iter);
 151
 152                 dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
 153                                                 DBUS_TYPE_UINT32_AS_STRING,
 154                                                 &value);
 155                 dbus_message_iter_append_basic(&value, DBUS_TYPE_UINT32,
 156                                                 &state);
 157                 dbus_message_iter_close_container(&iter, &value);
 158
 159                 return reply;
 160         }
 161
 162         return dbus_message_new_error(msg, DBUS_ERROR_FAILED,
 163                                                 "Unsupported property");
 164 }
 165
 166 static GDBusMethodTable methods[] = {
 167         { "Get", "ss",  "v",   property_get     },
 168         { },
 169 };
 170
 171 static GDBusSignalTable signals[] = {
 172         { "PropertiesChanged",  "a{sv}" },
 173         { "StateChanged",       "u"     },
 174         { },
 175 };
 176
 177 static int nmcompat_init(void)
 178 {
 179         DBG("");
 180
 181         connection = connman_dbus_get_connection();
 182         if (connection == NULL)
 183                 return -1;
 184
 185         if (g_dbus_request_name(connection, NM_SERVICE, NULL) == FALSE) {
 186                 connman_error("nmcompat: failed register service\n");
 187                 return -1;
 188         }
 189
 190         if (connman_notifier_register(&notifier) < 0) {
 191                 connman_error("nmcompat: failed to register notifier");
 192                 return -1;
 193         }
 194
 195         if (g_dbus_register_interface(connection, NM_PATH,
 196                                 DBUS_PROPERTIES_INTERFACE,
 197                                 methods, signals, NULL, NULL, NULL) == FALSE) {
 198                 connman_error("nmcompat: failed to register "
 199                                                 DBUS_PROPERTIES_INTERFACE);
 200                 return -1;
 201         }
 202
 203         return 0;
 204 }
 205
 206 static void nmcompat_exit(void)
 207 {
 208         DBG("");
 209
 210         connman_notifier_unregister(&notifier);
 211
 212         if (connection == NULL)
 213                 return;
 214
 215         g_dbus_unregister_interface(connection, NM_PATH,
 216                                         DBUS_PROPERTIES_INTERFACE);
 217
 218         dbus_connection_unref(connection);
 219 }
 220
 221 CONNMAN_PLUGIN_DEFINE(nmcompat, "NetworkManager compatibility interfaces",
 222                         VERSION, CONNMAN_PLUGIN_PRIORITY_DEFAULT,
 223                         nmcompat_init, nmcompat_exit)