libnm-glib/nm-device-infiniband.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 2011 - 2012 Red Hat, Inc.
  19  */
  20
  21 #include "nm-default.h"
  22
  23 #include <string.h>
  24 #include <linux/if_infiniband.h>
  25 #include <netinet/ether.h>
  26
  27 #include "nm-setting-connection.h"
  28 #include "nm-setting-infiniband.h"
  29 #include "nm-utils.h"
  30
  31 #include "nm-device-infiniband.h"
  32 #include "nm-device-private.h"
  33 #include "nm-object-private.h"
  34
  35 G_DEFINE_TYPE (NMDeviceInfiniband, nm_device_infiniband, NM_TYPE_DEVICE)
  36
  37 #define NM_DEVICE_INFINIBAND_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_DEVICE_INFINIBAND, NMDeviceInfinibandPrivate))
  38
  39 typedef struct {
  40         DBusGProxy *proxy;
  41
  42         char *hw_address;
  43         gboolean carrier;
  44 } NMDeviceInfinibandPrivate;
  45
  46 enum {
  47         PROP_0,
  48         PROP_HW_ADDRESS,
  49         PROP_CARRIER,
  50
  51         LAST_PROP
  52 };
  53
  54 /**
  55  * nm_device_infiniband_error_quark:
  56  *
  57  * Registers an error quark for #NMDeviceInfiniband if necessary.
  58  *
  59  * Returns: the error quark used for #NMDeviceInfiniband errors.
  60  **/
  61 GQuark
  62 nm_device_infiniband_error_quark (void)
  63 {
  64         static GQuark quark = 0;
  65
  66         if (G_UNLIKELY (quark == 0))
  67                 quark = g_quark_from_static_string ("nm-device-infiniband-error-quark");
  68         return quark;
  69 }
  70
  71 /**
  72  * nm_device_infiniband_new:
  73  * @connection: the #DBusGConnection
  74  * @path: the DBus object path of the device
  75  *
  76  * Creates a new #NMDeviceInfiniband.
  77  *
  78  * Returns: (transfer full): a new device
  79  **/
  80 GObject *
  81 nm_device_infiniband_new (DBusGConnection *connection, const char *path)
  82 {
  83         GObject *device;
  84
  85         g_return_val_if_fail (connection != NULL, NULL);
  86         g_return_val_if_fail (path != NULL, NULL);
  87
  88         device = g_object_new (NM_TYPE_DEVICE_INFINIBAND,
  89                                NM_OBJECT_DBUS_CONNECTION, connection,
  90                                NM_OBJECT_DBUS_PATH, path,
  91                                NULL);
  92         _nm_object_ensure_inited (NM_OBJECT (device));
  93         return device;
  94 }
  95
  96 /**
  97  * nm_device_infiniband_get_hw_address:
  98  * @device: a #NMDeviceInfiniband
  99  *
 100  * Gets the hardware (MAC) address of the #NMDeviceInfiniband
 101  *
 102  * Returns: the hardware address. This is the internal string used by the
 103  * device, and must not be modified.
 104  **/
 105 const char *
 106 nm_device_infiniband_get_hw_address (NMDeviceInfiniband *device)
 107 {
 108         g_return_val_if_fail (NM_IS_DEVICE_INFINIBAND (device), NULL);
 109
 110         _nm_object_ensure_inited (NM_OBJECT (device));
 111         return NM_DEVICE_INFINIBAND_GET_PRIVATE (device)->hw_address;
 112 }
 113
 114 /**
 115  * nm_device_infiniband_get_carrier:
 116  * @device: a #NMDeviceInfiniband
 117  *
 118  * Whether the device has carrier.
 119  *
 120  * Returns: %TRUE if the device has carrier
 121  **/
 122 gboolean
 123 nm_device_infiniband_get_carrier (NMDeviceInfiniband *device)
 124 {
 125         g_return_val_if_fail (NM_IS_DEVICE_INFINIBAND (device), FALSE);
 126
 127         _nm_object_ensure_inited (NM_OBJECT (device));
 128         return NM_DEVICE_INFINIBAND_GET_PRIVATE (device)->carrier;
 129 }
 130
 131 static gboolean
 132 connection_compatible (NMDevice *device, NMConnection *connection, GError **error)
 133 {
 134         NMSettingConnection *s_con;
 135         NMSettingInfiniband *s_infiniband;
 136         const char *ctype, *hwaddr_str;
 137         const GByteArray *mac;
 138         guint8 *hwaddr, hwaddr_buf[INFINIBAND_ALEN];
 139
 140         s_con = nm_connection_get_setting_connection (connection);
 141         g_assert (s_con);
 142
 143         ctype = nm_setting_connection_get_connection_type (s_con);
 144         if (strcmp (ctype, NM_SETTING_INFINIBAND_SETTING_NAME) != 0) {
 145                 g_set_error (error, NM_DEVICE_INFINIBAND_ERROR, NM_DEVICE_INFINIBAND_ERROR_NOT_INFINIBAND_CONNECTION,
 146                              "The connection was not a InfiniBand connection.");
 147                 return FALSE;
 148         }
 149
 150         s_infiniband = nm_connection_get_setting_infiniband (connection);
 151         if (!s_infiniband) {
 152                 g_set_error (error, NM_DEVICE_INFINIBAND_ERROR, NM_DEVICE_INFINIBAND_ERROR_INVALID_INFINIBAND_CONNECTION,
 153                              "The connection was not a valid InfiniBand connection.");
 154                 return FALSE;
 155         }
 156
 157         hwaddr_str = nm_device_infiniband_get_hw_address (NM_DEVICE_INFINIBAND (device));
 158         if (hwaddr_str) {
 159                 hwaddr = nm_utils_hwaddr_aton (hwaddr_str, ARPHRD_INFINIBAND, hwaddr_buf);
 160                 if (!hwaddr) {
 161                         g_set_error (error, NM_DEVICE_INFINIBAND_ERROR, NM_DEVICE_INFINIBAND_ERROR_INVALID_DEVICE_MAC,
 162                                      "Invalid device MAC address.");
 163                         return FALSE;
 164                 }
 165                 mac = nm_setting_infiniband_get_mac_address (s_infiniband);
 166
 167                 /* We only match against the last 8 bytes */
 168                 if (mac && hwaddr && memcmp (mac->data + INFINIBAND_ALEN - 8, hwaddr + INFINIBAND_ALEN - 8, 8)) {
 169                         g_set_error (error, NM_DEVICE_INFINIBAND_ERROR, NM_DEVICE_INFINIBAND_ERROR_MAC_MISMATCH,
 170                                      "The MACs of the device and the connection didn't match.");
 171                         return FALSE;
 172                 }
 173         }
 174
 175         return NM_DEVICE_CLASS (nm_device_infiniband_parent_class)->connection_compatible (device, connection, error);
 176 }
 177
 178 static GType
 179 get_setting_type (NMDevice *device)
 180 {
 181         return NM_TYPE_SETTING_INFINIBAND;
 182 }
 183
 184 static const char *
 185 get_hw_address (NMDevice *device)
 186 {
 187         return nm_device_infiniband_get_hw_address (NM_DEVICE_INFINIBAND (device));
 188 }
 189
 190 /***********************************************************/
 191
 192 static void
 193 nm_device_infiniband_init (NMDeviceInfiniband *device)
 194 {
 195         _nm_device_set_device_type (NM_DEVICE (device), NM_DEVICE_TYPE_INFINIBAND);
 196 }
 197
 198 static void
 199 register_properties (NMDeviceInfiniband *device)
 200 {
 201         NMDeviceInfinibandPrivate *priv = NM_DEVICE_INFINIBAND_GET_PRIVATE (device);
 202         const NMPropertiesInfo property_info[] = {
 203                 { NM_DEVICE_INFINIBAND_HW_ADDRESS, &priv->hw_address },
 204                 { NM_DEVICE_INFINIBAND_CARRIER,    &priv->carrier },
 205                 { NULL },
 206         };
 207
 208         _nm_object_register_properties (NM_OBJECT (device),
 209                                         priv->proxy,
 210                                         property_info);
 211 }
 212
 213 static void
 214 constructed (GObject *object)
 215 {
 216         NMDeviceInfinibandPrivate *priv = NM_DEVICE_INFINIBAND_GET_PRIVATE (object);
 217
 218         G_OBJECT_CLASS (nm_device_infiniband_parent_class)->constructed (object);
 219
 220         priv->proxy = _nm_object_new_proxy (NM_OBJECT (object), NULL, NM_DBUS_INTERFACE_DEVICE_INFINIBAND);
 221         register_properties (NM_DEVICE_INFINIBAND (object));
 222 }
 223
 224 static void
 225 dispose (GObject *object)
 226 {
 227         NMDeviceInfinibandPrivate *priv = NM_DEVICE_INFINIBAND_GET_PRIVATE (object);
 228
 229         g_clear_object (&priv->proxy);
 230
 231         G_OBJECT_CLASS (nm_device_infiniband_parent_class)->dispose (object);
 232 }
 233
 234 static void
 235 finalize (GObject *object)
 236 {
 237         NMDeviceInfinibandPrivate *priv = NM_DEVICE_INFINIBAND_GET_PRIVATE (object);
 238
 239         g_free (priv->hw_address);
 240
 241         G_OBJECT_CLASS (nm_device_infiniband_parent_class)->finalize (object);
 242 }
 243
 244 static void
 245 get_property (GObject *object,
 246               guint prop_id,
 247               GValue *value,
 248               GParamSpec *pspec)
 249 {
 250         NMDeviceInfiniband *device = NM_DEVICE_INFINIBAND (object);
 251
 252         _nm_object_ensure_inited (NM_OBJECT (object));
 253
 254         switch (prop_id) {
 255         case PROP_HW_ADDRESS:
 256                 g_value_set_string (value, nm_device_infiniband_get_hw_address (device));
 257                 break;
 258         case PROP_CARRIER:
 259                 g_value_set_boolean (value, nm_device_infiniband_get_carrier (device));
 260                 break;
 261         default:
 262                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 263                 break;
 264         }
 265 }
 266
 267 static void
 268 nm_device_infiniband_class_init (NMDeviceInfinibandClass *ib_class)
 269 {
 270         GObjectClass *object_class = G_OBJECT_CLASS (ib_class);
 271         NMDeviceClass *device_class = NM_DEVICE_CLASS (ib_class);
 272
 273         g_type_class_add_private (ib_class, sizeof (NMDeviceInfinibandPrivate));
 274
 275         /* virtual methods */
 276         object_class->constructed = constructed;
 277         object_class->dispose = dispose;
 278         object_class->finalize = finalize;
 279         object_class->get_property = get_property;
 280         device_class->connection_compatible = connection_compatible;
 281         device_class->get_setting_type = get_setting_type;
 282         device_class->get_hw_address = get_hw_address;
 283
 284         /* properties */
 285
 286         /**
 287          * NMDeviceInfiniband:hw-address:
 288          *
 289          * The hardware (MAC) address of the device.
 290          **/
 291         g_object_class_install_property
 292                 (object_class, PROP_HW_ADDRESS,
 293                  g_param_spec_string (NM_DEVICE_INFINIBAND_HW_ADDRESS, "", "",
 294                                       NULL,
 295                                       G_PARAM_READABLE |
 296                                       G_PARAM_STATIC_STRINGS));
 297
 298         /**
 299          * NMDeviceInfiniband:carrier:
 300          *
 301          * Whether the device has carrier.
 302          **/
 303         g_object_class_install_property
 304                 (object_class, PROP_CARRIER,
 305                  g_param_spec_boolean (NM_DEVICE_INFINIBAND_CARRIER, "", "",
 306                                        FALSE,
 307                                        G_PARAM_READABLE |
 308                                        G_PARAM_STATIC_STRINGS));
 309
 310 }