src/ipconfig.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 <gdbus.h>
  27
  28 #include "connman.h"
  29
  30 struct connman_ipconfig {
  31         gint refcount;
  32         unsigned int index;
  33         char *interface;
  34         enum connman_ipconfig_method method;
  35 };
  36
  37 /**
  38  * connman_ipconfig_create:
  39  *
  40  * Allocate a new ipconfig structure.
  41  *
  42  * Returns: a newly-allocated #connman_ipconfig structure
  43  */
  44 struct connman_ipconfig *connman_ipconfig_create(unsigned int index)
  45 {
  46         struct connman_ipconfig *ipconfig;
  47
  48         DBG("");
  49
  50         ipconfig = g_try_new0(struct connman_ipconfig, 1);
  51         if (ipconfig == NULL)
  52                 return NULL;
  53
  54         ipconfig->index = index;
  55         ipconfig->interface = connman_inet_ifname(index);
  56
  57         DBG("ipconfig %p", ipconfig);
  58
  59         __connman_rtnl_register_ipconfig(ipconfig);
  60
  61         return ipconfig;
  62 }
  63
  64 /**
  65  * connman_ipconfig_ref:
  66  * @ipconfig: ipconfig structure
  67  *
  68  * Increase reference counter of ipconfig
  69  */
  70 struct connman_ipconfig *connman_ipconfig_ref(struct connman_ipconfig *ipconfig)
  71 {
  72         g_atomic_int_inc(&ipconfig->refcount);
  73
  74         return ipconfig;
  75 }
  76
  77 /**
  78  * connman_ipconfig_unref:
  79  * @ipconfig: ipconfig structure
  80  *
  81  * Decrease reference counter of ipconfig
  82  */
  83 void connman_ipconfig_unref(struct connman_ipconfig *ipconfig)
  84 {
  85         if (g_atomic_int_dec_and_test(&ipconfig->refcount) == TRUE) {
  86                 __connman_rtnl_unregister_ipconfig(ipconfig);
  87
  88                 g_free(ipconfig->interface);
  89                 g_free(ipconfig);
  90         }
  91 }
  92
  93 /**
  94  * connman_ipconfig_set_method:
  95  * @ipconfig: ipconfig structure
  96  * @method: configuration method
  97  *
  98  * Set the configuration method
  99  */
 100 int connman_ipconfig_set_method(struct connman_ipconfig *ipconfig,
 101                                         enum connman_ipconfig_method method)
 102 {
 103         ipconfig->method = method;
 104
 105         return 0;
 106 }
 107
 108 int __connman_ipconfig_get_index(struct connman_ipconfig *ipconfig)
 109 {
 110         return ipconfig->index;
 111 }
 112
 113 void __connman_ipconfig_add_address(struct connman_ipconfig *ipconfig,
 114                                 const char *label, unsigned int prefixlen,
 115                                 const char *address, const char *broadcast)
 116 {
 117         connman_info("%s {add} address %s/%d label %s", ipconfig->interface,
 118                                                 address, prefixlen, label);
 119 }
 120
 121 void __connman_ipconfig_del_address(struct connman_ipconfig *ipconfig,
 122                                 const char *label, unsigned int prefixlen,
 123                                 const char *address, const char *broadcast)
 124 {
 125         connman_info("%s {del} address %s/%d label %s", ipconfig->interface,
 126                                                 address, prefixlen, label);
 127 }
 128
 129 const char *__connman_ipconfig_method2string(enum connman_ipconfig_method method)
 130 {
 131         switch (method) {
 132         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
 133                 break;
 134         case CONNMAN_IPCONFIG_METHOD_OFF:
 135                 return "off";
 136         case CONNMAN_IPCONFIG_METHOD_STATIC:
 137                 return "static";
 138         case CONNMAN_IPCONFIG_METHOD_DHCP:
 139                 return "dhcp";
 140         }
 141
 142         return NULL;
 143 }
 144
 145 enum connman_ipconfig_method __connman_ipconfig_string2method(const char *method)
 146 {
 147         if (g_strcmp0(method, "off") == 0)
 148                 return CONNMAN_IPCONFIG_METHOD_OFF;
 149         else if (g_strcmp0(method, "static") == 0)
 150                 return CONNMAN_IPCONFIG_METHOD_STATIC;
 151         else if (g_strcmp0(method, "dhcp") == 0)
 152                 return CONNMAN_IPCONFIG_METHOD_DHCP;
 153         else
 154                 return CONNMAN_IPCONFIG_METHOD_UNKNOWN;
 155 }
 156
 157 static void append_variant(DBusMessageIter *iter, const char *prefix,
 158                                         const char *key, int type, void *val)
 159 {
 160         char *str;
 161
 162         if (prefix == NULL) {
 163                 connman_dbus_dict_append_variant(iter, key, type, val);
 164                 return;
 165         }
 166
 167         str = g_strdup_printf("%s%s", prefix, key);
 168         if (str != NULL)
 169                 connman_dbus_dict_append_variant(iter, str, type, val);
 170
 171         g_free(str);
 172 }
 173
 174 void __connman_ipconfig_append_ipv4(struct connman_ipconfig *ipconfig,
 175                                 DBusMessageIter *iter, const char *prefix)
 176 {
 177         const char *str;
 178
 179         str = __connman_ipconfig_method2string(ipconfig->method);
 180         if (str == NULL)
 181                 return;
 182
 183         append_variant(iter, prefix, "Method", DBUS_TYPE_STRING, &str);
 184 }
 185
 186 int __connman_ipconfig_set_ipv4(struct connman_ipconfig *ipconfig,
 187                                 const char *key, DBusMessageIter *value)
 188 {
 189         int type = dbus_message_iter_get_arg_type(value);
 190
 191         DBG("ipconfig %p key %s type %d", ipconfig, key, type);
 192
 193         if (g_strcmp0(key, "Method") == 0) {
 194                 const char *method;
 195
 196                 if (type != DBUS_TYPE_STRING)
 197                         return -EINVAL;
 198
 199                 dbus_message_iter_get_basic(value, &method);
 200
 201                 ipconfig->method = __connman_ipconfig_string2method(method);
 202         } else
 203                 return -EINVAL;
 204
 205         return 0;
 206 }
 207
 208 int __connman_ipconfig_load(struct connman_ipconfig *ipconfig,
 209                 GKeyFile *keyfile, const char *identifier, const char *prefix)
 210 {
 211         DBG("ipconfig %p identifier %s", ipconfig, identifier);
 212
 213         return 0;
 214 }
 215
 216 int __connman_ipconfig_save(struct connman_ipconfig *ipconfig,
 217                 GKeyFile *keyfile, const char *identifier, const char *prefix)
 218 {
 219         DBG("ipconfig %p identifier %s", ipconfig, identifier);
 220
 221         return 0;
 222 }
 223
 224 static GSList *driver_list = NULL;
 225
 226 static gint compare_priority(gconstpointer a, gconstpointer b)
 227 {
 228         const struct connman_ipconfig_driver *driver1 = a;
 229         const struct connman_ipconfig_driver *driver2 = b;
 230
 231         return driver2->priority - driver1->priority;
 232 }
 233
 234 /**
 235  * connman_ipconfig_driver_register:
 236  * @driver: IP configuration driver
 237  *
 238  * Register a new IP configuration driver
 239  *
 240  * Returns: %0 on success
 241  */
 242 int connman_ipconfig_driver_register(struct connman_ipconfig_driver *driver)
 243 {
 244         DBG("driver %p name %s", driver, driver->name);
 245
 246         driver_list = g_slist_insert_sorted(driver_list, driver,
 247                                                         compare_priority);
 248
 249         return 0;
 250 }
 251
 252 /**
 253  * connman_ipconfig_driver_unregister:
 254  * @driver: IP configuration driver
 255  *
 256  * Remove a previously registered IP configuration driver.
 257  */
 258 void connman_ipconfig_driver_unregister(struct connman_ipconfig_driver *driver)
 259 {
 260         DBG("driver %p name %s", driver, driver->name);
 261
 262         driver_list = g_slist_remove(driver_list, driver);
 263 }