plugins/ethernet.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  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         connman_network_set_connected(network, TRUE);
 107
 108         connman_network_set_group(network, "cable");
 109 }
 110
 111 static void ethernet_newlink(unsigned flags, unsigned change, void *user_data)
 112 {
 113         struct connman_device *device = user_data;
 114         struct ethernet_data *ethernet = connman_device_get_data(device);
 115
 116         DBG("index %d flags %d change %d", ethernet->index, flags, change);
 117
 118         if ((ethernet->flags & IFF_UP) != (flags & IFF_UP)) {
 119                 if (flags & IFF_UP) {
 120                         DBG("power on");
 121                         connman_device_set_powered(device, TRUE);
 122                 } else {
 123                         DBG("power off");
 124                         connman_device_set_powered(device, FALSE);
 125                 }
 126         }
 127
 128         if ((ethernet->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
 129                 if (flags & IFF_LOWER_UP) {
 130                         DBG("carrier on");
 131                         add_network(device);
 132                 } else {
 133                         DBG("carrier off");
 134                         connman_device_remove_all_networks(device);
 135                 }
 136         }
 137
 138         ethernet->flags = flags;
 139 }
 140
 141 static int ethernet_probe(struct connman_device *device)
 142 {
 143         struct ethernet_data *ethernet;
 144
 145         DBG("device %p", device);
 146
 147         ethernet = g_try_new0(struct ethernet_data, 1);
 148         if (ethernet == NULL)
 149                 return -ENOMEM;
 150
 151         connman_device_set_data(device, ethernet);
 152
 153         ethernet->index = connman_device_get_index(device);
 154         ethernet->flags = 0;
 155
 156         ethernet->watch = connman_rtnl_add_newlink_watch(ethernet->index,
 157                                                 ethernet_newlink, device);
 158
 159         return 0;
 160 }
 161
 162 static void ethernet_remove(struct connman_device *device)
 163 {
 164         struct ethernet_data *ethernet = connman_device_get_data(device);
 165
 166         DBG("device %p", device);
 167
 168         connman_device_set_data(device, NULL);
 169
 170         connman_rtnl_remove_watch(ethernet->watch);
 171
 172         connman_device_remove_all_networks(device);
 173
 174         g_free(ethernet);
 175 }
 176
 177 static int ethernet_enable(struct connman_device *device)
 178 {
 179         struct ethernet_data *ethernet = connman_device_get_data(device);
 180
 181         DBG("device %p", device);
 182
 183         return connman_inet_ifup(ethernet->index);
 184 }
 185
 186 static int ethernet_disable(struct connman_device *device)
 187 {
 188         struct ethernet_data *ethernet = connman_device_get_data(device);
 189
 190         DBG("device %p", device);
 191
 192         return connman_inet_ifdown(ethernet->index);
 193 }
 194
 195 static struct connman_device_driver ethernet_driver = {
 196         .name           = "ethernet",
 197         .type           = CONNMAN_DEVICE_TYPE_ETHERNET,
 198         .probe          = ethernet_probe,
 199         .remove         = ethernet_remove,
 200         .enable         = ethernet_enable,
 201         .disable        = ethernet_disable,
 202 };
 203
 204 static int ethernet_init(void)
 205 {
 206         int err;
 207
 208         err = connman_network_driver_register(&cable_driver);
 209         if (err < 0)
 210                 return err;
 211
 212         err = connman_device_driver_register(&ethernet_driver);
 213         if (err < 0) {
 214                 connman_network_driver_unregister(&cable_driver);
 215                 return err;
 216         }
 217
 218         return 0;
 219 }
 220
 221 static void ethernet_exit(void)
 222 {
 223         connman_network_driver_unregister(&cable_driver);
 224
 225         connman_device_driver_unregister(&ethernet_driver);
 226 }
 227
 228 CONNMAN_PLUGIN_DEFINE(ethernet, "Ethernet interface plugin", VERSION,
 229                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, ethernet_init, ethernet_exit)