plugins/ethernet.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 <errno.h>
  27 #include <net/if.h>
  28
  29 #ifndef IFF_LOWER_UP
  30 #define IFF_LOWER_UP    0x10000
  31 #endif
  32
  33 #include <glib.h>
  34
  35 #define CONNMAN_API_SUBJECT_TO_CHANGE
  36 #include <connman/plugin.h>
  37 #include <connman/device.h>
  38 #include <connman/inet.h>
  39 #include <connman/rtnl.h>
  40 #include <connman/log.h>
  41
  42 struct ethernet_data {
  43         int index;
  44         unsigned flags;
  45         unsigned int watch;
  46         struct connman_network *network;
  47 };
  48
  49 static int cable_probe(struct connman_network *network)
  50 {
  51         DBG("network %p", network);
  52
  53         return 0;
  54 }
  55
  56 static void cable_remove(struct connman_network *network)
  57 {
  58         DBG("network %p", network);
  59 }
  60
  61 static int cable_connect(struct connman_network *network)
  62 {
  63         DBG("network %p", network);
  64
  65         return 0;
  66 }
  67
  68 static int cable_disconnect(struct connman_network *network)
  69 {
  70         DBG("network %p", network);
  71
  72         return 0;
  73 }
  74
  75 static struct connman_network_driver cable_driver = {
  76         .name           = "cable",
  77         .type           = CONNMAN_NETWORK_TYPE_ETHERNET,
  78         .probe          = cable_probe,
  79         .remove         = cable_remove,
  80         .connect        = cable_connect,
  81         .disconnect     = cable_disconnect,
  82 };
  83
  84 static void add_network(struct connman_device *device)
  85 {
  86         struct connman_network *network;
  87         int index;
  88
  89         network = connman_network_create("carrier",
  90                                         CONNMAN_NETWORK_TYPE_ETHERNET);
  91         if (network == NULL)
  92                 return;
  93
  94         index = connman_device_get_index(device);
  95         connman_network_set_index(network, index);
  96
  97         connman_network_set_name(network, "Wired");
  98         connman_network_set_protocol(network, CONNMAN_NETWORK_PROTOCOL_IP);
  99
 100         if (connman_device_add_network(device, network) < 0) {
 101                 connman_network_unref(network);
 102                 return;
 103         }
 104
 105         connman_network_set_available(network, TRUE);
 106
 107         connman_network_set_group(network, "cable");
 108
 109         connman_network_set_connected(network, TRUE);
 110 }
 111
 112 static void ethernet_newlink(unsigned flags, unsigned change, void *user_data)
 113 {
 114         struct connman_device *device = user_data;
 115         struct ethernet_data *ethernet = connman_device_get_data(device);
 116
 117         DBG("index %d flags %d change %d", ethernet->index, flags, change);
 118
 119         if ((ethernet->flags & IFF_UP) != (flags & IFF_UP)) {
 120                 if (flags & IFF_UP) {
 121                         DBG("power on");
 122                         connman_device_set_powered(device, TRUE);
 123                 } else {
 124                         DBG("power off");
 125                         connman_device_set_powered(device, FALSE);
 126                 }
 127         }
 128
 129         if ((ethernet->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
 130                 if (flags & IFF_LOWER_UP) {
 131                         DBG("carrier on");
 132                         add_network(device);
 133                 } else {
 134                         DBG("carrier off");
 135                         connman_device_remove_all_networks(device);
 136                 }
 137         }
 138
 139         ethernet->flags = flags;
 140 }
 141
 142 static int ethernet_probe(struct connman_device *device)
 143 {
 144         struct ethernet_data *ethernet;
 145
 146         DBG("device %p", device);
 147
 148         ethernet = g_try_new0(struct ethernet_data, 1);
 149         if (ethernet == NULL)
 150                 return -ENOMEM;
 151
 152         connman_device_set_data(device, ethernet);
 153
 154         ethernet->index = connman_device_get_index(device);
 155         ethernet->flags = 0;
 156
 157         ethernet->watch = connman_rtnl_add_newlink_watch(ethernet->index,
 158                                                 ethernet_newlink, device);
 159
 160         return 0;
 161 }
 162
 163 static void ethernet_remove(struct connman_device *device)
 164 {
 165         struct ethernet_data *ethernet = connman_device_get_data(device);
 166
 167         DBG("device %p", device);
 168
 169         connman_device_set_data(device, NULL);
 170
 171         connman_rtnl_remove_watch(ethernet->watch);
 172
 173         connman_device_remove_all_networks(device);
 174
 175         g_free(ethernet);
 176 }
 177
 178 static int ethernet_enable(struct connman_device *device)
 179 {
 180         struct ethernet_data *ethernet = connman_device_get_data(device);
 181
 182         DBG("device %p", device);
 183
 184         return connman_inet_ifup(ethernet->index);
 185 }
 186
 187 static int ethernet_disable(struct connman_device *device)
 188 {
 189         struct ethernet_data *ethernet = connman_device_get_data(device);
 190
 191         DBG("device %p", device);
 192
 193         return connman_inet_ifdown(ethernet->index);
 194 }
 195
 196 static struct connman_device_driver ethernet_driver = {
 197         .name           = "ethernet",
 198         .type           = CONNMAN_DEVICE_TYPE_ETHERNET,
 199         .probe          = ethernet_probe,
 200         .remove         = ethernet_remove,
 201         .enable         = ethernet_enable,
 202         .disable        = ethernet_disable,
 203 };
 204
 205 static int ethernet_init(void)
 206 {
 207         int err;
 208
 209         err = connman_network_driver_register(&cable_driver);
 210         if (err < 0)
 211                 return err;
 212
 213         err = connman_device_driver_register(&ethernet_driver);
 214         if (err < 0) {
 215                 connman_network_driver_unregister(&cable_driver);
 216                 return err;
 217         }
 218
 219         return 0;
 220 }
 221
 222 static void ethernet_exit(void)
 223 {
 224         connman_network_driver_unregister(&cable_driver);
 225
 226         connman_device_driver_unregister(&ethernet_driver);
 227 }
 228
 229 CONNMAN_PLUGIN_DEFINE(ethernet, "Ethernet interface plugin", VERSION,
 230                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, ethernet_init, ethernet_exit)