libnm/nm-device-bt.c

   1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
   2 /*
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Lesser General Public
   5  * License as published by the Free Software Foundation; either
   6  * version 2 of the License, or (at your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the
  15  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16  * Boston, MA 02110-1301 USA.
  17  *
  18  * Copyright 2007 - 2008 Novell, Inc.
  19  * Copyright 2007 - 2012 Red Hat, Inc.
  20  */
  21
  22 #include "nm-default.h"
  23
  24 #include <string.h>
  25
  26 #include "nm-setting-connection.h"
  27 #include "nm-setting-bluetooth.h"
  28 #include "nm-utils.h"
  29
  30 #include "nm-device-bt.h"
  31 #include "nm-device-private.h"
  32 #include "nm-object-private.h"
  33 #include "nm-enum-types.h"
  34
  35 G_DEFINE_TYPE (NMDeviceBt, nm_device_bt, NM_TYPE_DEVICE)
  36
  37 #define NM_DEVICE_BT_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_DEVICE_BT, NMDeviceBtPrivate))
  38
  39 typedef struct {
  40         char *hw_address;
  41         char *name;
  42         guint32 bt_capabilities;
  43 } NMDeviceBtPrivate;
  44
  45 enum {
  46         PROP_0,
  47         PROP_HW_ADDRESS,
  48         PROP_NAME,
  49         PROP_BT_CAPABILITIES,
  50
  51         LAST_PROP
  52 };
  53
  54 /**
  55  * nm_device_bt_get_hw_address:
  56  * @device: a #NMDeviceBt
  57  *
  58  * Gets the hardware (MAC) address of the #NMDeviceBt
  59  *
  60  * Returns: the hardware address. This is the internal string used by the
  61  * device, and must not be modified.
  62  **/
  63 const char *
  64 nm_device_bt_get_hw_address (NMDeviceBt *device)
  65 {
  66         g_return_val_if_fail (NM_IS_DEVICE_BT (device), NULL);
  67
  68         return NM_DEVICE_BT_GET_PRIVATE (device)->hw_address;
  69 }
  70
  71 /**
  72  * nm_device_bt_get_name:
  73  * @device: a #NMDeviceBt
  74  *
  75  * Gets the name of the #NMDeviceBt.
  76  *
  77  * Returns: the name of the device
  78  **/
  79 const char *
  80 nm_device_bt_get_name (NMDeviceBt *device)
  81 {
  82         g_return_val_if_fail (NM_IS_DEVICE_BT (device), NULL);
  83
  84         return NM_DEVICE_BT_GET_PRIVATE (device)->name;
  85 }
  86
  87 /**
  88  * nm_device_bt_get_capabilities:
  89  * @device: a #NMDeviceBt
  90  *
  91  * Returns the Bluetooth device's usable capabilities.
  92  *
  93  * Returns: a combination of #NMBluetoothCapabilities
  94  **/
  95 NMBluetoothCapabilities
  96 nm_device_bt_get_capabilities (NMDeviceBt *device)
  97 {
  98         g_return_val_if_fail (NM_IS_DEVICE_BT (device), NM_BT_CAPABILITY_NONE);
  99
 100         return NM_DEVICE_BT_GET_PRIVATE (device)->bt_capabilities;
 101 }
 102
 103 static NMBluetoothCapabilities
 104 get_connection_bt_type (NMConnection *connection)
 105 {
 106         NMSettingBluetooth *s_bt;
 107         const char *bt_type;
 108
 109         s_bt = nm_connection_get_setting_bluetooth (connection);
 110         if (!s_bt)
 111                 return NM_BT_CAPABILITY_NONE;
 112
 113         bt_type = nm_setting_bluetooth_get_connection_type (s_bt);
 114         g_assert (bt_type);
 115
 116         if (!strcmp (bt_type, NM_SETTING_BLUETOOTH_TYPE_DUN))
 117                 return NM_BT_CAPABILITY_DUN;
 118         else if (!strcmp (bt_type, NM_SETTING_BLUETOOTH_TYPE_PANU))
 119                 return NM_BT_CAPABILITY_NAP;
 120
 121         return NM_BT_CAPABILITY_NONE;
 122 }
 123
 124 static gboolean
 125 connection_compatible (NMDevice *device, NMConnection *connection, GError **error)
 126 {
 127         NMSettingBluetooth *s_bt;
 128         const char *hw_addr, *setting_addr;
 129         NMBluetoothCapabilities dev_caps;
 130         NMBluetoothCapabilities bt_type;
 131
 132         if (!NM_DEVICE_CLASS (nm_device_bt_parent_class)->connection_compatible (device, connection, error))
 133                 return FALSE;
 134
 135         if (!nm_connection_is_type (connection, NM_SETTING_BLUETOOTH_SETTING_NAME)) {
 136                 g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
 137                              _("The connection was not a Bluetooth connection."));
 138                 return FALSE;
 139         }
 140
 141         /* Check BT address */
 142         hw_addr = nm_device_bt_get_hw_address (NM_DEVICE_BT (device));
 143         if (hw_addr) {
 144                 if (!nm_utils_hwaddr_valid (hw_addr, ETH_ALEN)) {
 145                         g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_FAILED,
 146                                              _("Invalid device Bluetooth address."));
 147                         return FALSE;
 148                 }
 149                 s_bt = nm_connection_get_setting_bluetooth (connection);
 150                 setting_addr = nm_setting_bluetooth_get_bdaddr (s_bt);
 151                 if (setting_addr && !nm_utils_hwaddr_matches (setting_addr, -1, hw_addr, -1)) {
 152                         g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
 153                                              _("The Bluetooth addresses of the device and the connection didn't match."));
 154                         return FALSE;
 155                 }
 156         }
 157
 158         dev_caps = nm_device_bt_get_capabilities (NM_DEVICE_BT (device));
 159         bt_type = get_connection_bt_type (connection);
 160         if (!(bt_type & dev_caps)) {
 161                 g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
 162                                      _("The device is lacking Bluetooth capabilities required by the connection."));
 163                 return FALSE;
 164         }
 165
 166         return TRUE;
 167 }
 168
 169 static GType
 170 get_setting_type (NMDevice *device)
 171 {
 172         return NM_TYPE_SETTING_BLUETOOTH;
 173 }
 174
 175 static const char *
 176 get_hw_address (NMDevice *device)
 177 {
 178         return nm_device_bt_get_hw_address (NM_DEVICE_BT (device));
 179 }
 180
 181 /************************************************************/
 182
 183 static void
 184 nm_device_bt_init (NMDeviceBt *device)
 185 {
 186         _nm_device_set_device_type (NM_DEVICE (device), NM_DEVICE_TYPE_BT);
 187 }
 188
 189 static void
 190 init_dbus (NMObject *object)
 191 {
 192         NMDeviceBtPrivate *priv = NM_DEVICE_BT_GET_PRIVATE (object);
 193         const NMPropertiesInfo property_info[] = {
 194                 { NM_DEVICE_BT_HW_ADDRESS,   &priv->hw_address },
 195                 { NM_DEVICE_BT_NAME,         &priv->name },
 196                 { NM_DEVICE_BT_CAPABILITIES, &priv->bt_capabilities },
 197                 { NULL },
 198         };
 199
 200         NM_OBJECT_CLASS (nm_device_bt_parent_class)->init_dbus (object);
 201
 202         _nm_object_register_properties (object,
 203                                         NM_DBUS_INTERFACE_DEVICE_BLUETOOTH,
 204                                         property_info);
 205 }
 206
 207 static void
 208 finalize (GObject *object)
 209 {
 210         NMDeviceBtPrivate *priv = NM_DEVICE_BT_GET_PRIVATE (object);
 211
 212         g_free (priv->hw_address);
 213         g_free (priv->name);
 214
 215         G_OBJECT_CLASS (nm_device_bt_parent_class)->finalize (object);
 216 }
 217
 218 static void
 219 get_property (GObject *object,
 220               guint prop_id,
 221               GValue *value,
 222               GParamSpec *pspec)
 223 {
 224         NMDeviceBt *device = NM_DEVICE_BT (object);
 225
 226         switch (prop_id) {
 227         case PROP_HW_ADDRESS:
 228                 g_value_set_string (value, nm_device_bt_get_hw_address (device));
 229                 break;
 230         case PROP_NAME:
 231                 g_value_set_string (value, nm_device_bt_get_name (device));
 232                 break;
 233         case PROP_BT_CAPABILITIES:
 234                 g_value_set_flags (value, nm_device_bt_get_capabilities (device));
 235                 break;
 236         default:
 237                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 238                 break;
 239         }
 240 }
 241
 242 static void
 243 nm_device_bt_class_init (NMDeviceBtClass *bt_class)
 244 {
 245         GObjectClass *object_class = G_OBJECT_CLASS (bt_class);
 246         NMObjectClass *nm_object_class = NM_OBJECT_CLASS (bt_class);
 247         NMDeviceClass *device_class = NM_DEVICE_CLASS (bt_class);
 248
 249         g_type_class_add_private (bt_class, sizeof (NMDeviceBtPrivate));
 250
 251         _nm_object_class_add_interface (nm_object_class, NM_DBUS_INTERFACE_DEVICE_BLUETOOTH);
 252
 253         /* virtual methods */
 254         object_class->finalize = finalize;
 255         object_class->get_property = get_property;
 256
 257         nm_object_class->init_dbus = init_dbus;
 258
 259         device_class->connection_compatible = connection_compatible;
 260         device_class->get_setting_type = get_setting_type;
 261         device_class->get_hw_address = get_hw_address;
 262
 263         /* properties */
 264
 265         /**
 266          * NMDeviceBt:hw-address:
 267          *
 268          * The hardware (MAC) address of the device.
 269          **/
 270         g_object_class_install_property
 271                 (object_class, PROP_HW_ADDRESS,
 272                  g_param_spec_string (NM_DEVICE_BT_HW_ADDRESS, "", "",
 273                                       NULL,
 274                                       G_PARAM_READABLE |
 275                                       G_PARAM_STATIC_STRINGS));
 276
 277         /**
 278          * NMDeviceBt:name:
 279          *
 280          * The name of the bluetooth device.
 281          **/
 282         g_object_class_install_property
 283                 (object_class, PROP_NAME,
 284                  g_param_spec_string (NM_DEVICE_BT_NAME, "", "",
 285                                       NULL,
 286                                       G_PARAM_READABLE |
 287                                       G_PARAM_STATIC_STRINGS));
 288
 289         /**
 290          * NMDeviceBt:bt-capabilities:
 291          *
 292          * The device's bluetooth capabilities, a combination of #NMBluetoothCapabilities.
 293          **/
 294         g_object_class_install_property
 295                 (object_class, PROP_BT_CAPABILITIES,
 296                  g_param_spec_flags (NM_DEVICE_BT_CAPABILITIES, "", "",
 297                                      NM_TYPE_BLUETOOTH_CAPABILITIES,
 298                                      NM_BT_CAPABILITY_NONE,
 299                                      G_PARAM_READABLE |
 300                                      G_PARAM_STATIC_STRINGS));
 301
 302 }