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 <net/if.h>
  27
  28 #ifndef IFF_LOWER_UP
  29 #define IFF_LOWER_UP    0x10000
  30 #endif
  31
  32 #include <gdbus.h>
  33
  34 #include "connman.h"
  35
  36 struct connman_ipconfig {
  37         gint refcount;
  38         int index;
  39         char *interface;
  40         unsigned int flags;
  41         enum connman_ipconfig_method method;
  42 };
  43
  44 /**
  45  * connman_ipconfig_create:
  46  *
  47  * Allocate a new ipconfig structure.
  48  *
  49  * Returns: a newly-allocated #connman_ipconfig structure
  50  */
  51 struct connman_ipconfig *connman_ipconfig_create(int index)
  52 {
  53         struct connman_ipconfig *ipconfig;
  54
  55         DBG("");
  56
  57         ipconfig = g_try_new0(struct connman_ipconfig, 1);
  58         if (ipconfig == NULL)
  59                 return NULL;
  60
  61         ipconfig->refcount = 1;
  62
  63         ipconfig->index = index;
  64         ipconfig->interface = connman_inet_ifname(index);
  65
  66         DBG("ipconfig %p", ipconfig);
  67
  68         //__connman_rtnl_register_ipconfig(ipconfig);
  69
  70         connman_info("%s {create} index %d", ipconfig->interface,
  71                                                         ipconfig->index);
  72
  73         return ipconfig;
  74 }
  75
  76 /**
  77  * connman_ipconfig_ref:
  78  * @ipconfig: ipconfig structure
  79  *
  80  * Increase reference counter of ipconfig
  81  */
  82 struct connman_ipconfig *connman_ipconfig_ref(struct connman_ipconfig *ipconfig)
  83 {
  84         g_atomic_int_inc(&ipconfig->refcount);
  85
  86         return ipconfig;
  87 }
  88
  89 /**
  90  * connman_ipconfig_unref:
  91  * @ipconfig: ipconfig structure
  92  *
  93  * Decrease reference counter of ipconfig
  94  */
  95 void connman_ipconfig_unref(struct connman_ipconfig *ipconfig)
  96 {
  97         if (g_atomic_int_dec_and_test(&ipconfig->refcount) == TRUE) {
  98                 //__connman_rtnl_unregister_ipconfig(ipconfig);
  99
 100                 connman_info("%s {remove} index %d", ipconfig->interface,
 101                                                         ipconfig->index);
 102
 103                 g_free(ipconfig->interface);
 104                 g_free(ipconfig);
 105         }
 106 }
 107
 108 /**
 109  * connman_ipconfig_set_method:
 110  * @ipconfig: ipconfig structure
 111  * @method: configuration method
 112  *
 113  * Set the configuration method
 114  */
 115 int connman_ipconfig_set_method(struct connman_ipconfig *ipconfig,
 116                                         enum connman_ipconfig_method method)
 117 {
 118         ipconfig->method = method;
 119
 120         return 0;
 121 }
 122
 123 int __connman_ipconfig_get_index(struct connman_ipconfig *ipconfig)
 124 {
 125         return ipconfig->index;
 126 }
 127
 128 void __connman_ipconfig_update_link(struct connman_ipconfig *ipconfig,
 129                                         unsigned flags, unsigned change)
 130 {
 131         GString *str;
 132
 133         if (flags == ipconfig->flags)
 134                 return;
 135
 136         ipconfig->flags = flags;
 137
 138         str = g_string_new(NULL);
 139         if (str == NULL)
 140                 return;
 141
 142         if (flags & IFF_UP)
 143                 g_string_append(str, "UP");
 144         else
 145                 g_string_append(str, "DOWN");
 146
 147         if (flags & IFF_RUNNING)
 148                 g_string_append(str, ",RUNNING");
 149
 150         if (flags & IFF_LOWER_UP)
 151                 g_string_append(str, ",LOWER_UP");
 152
 153         connman_info("%s {update} flags %u change %u <%s>",
 154                                 ipconfig->interface, flags, change, str->str);
 155
 156         g_string_free(str, TRUE);
 157 }
 158
 159 void __connman_ipconfig_add_address(struct connman_ipconfig *ipconfig,
 160                                 const char *label, unsigned char prefixlen,
 161                                 const char *address, const char *broadcast)
 162 {
 163         connman_info("%s {add} address %s/%u label %s", ipconfig->interface,
 164                                                 address, prefixlen, label);
 165 }
 166
 167 void __connman_ipconfig_del_address(struct connman_ipconfig *ipconfig,
 168                                 const char *label, unsigned char prefixlen,
 169                                 const char *address, const char *broadcast)
 170 {
 171         connman_info("%s {del} address %s/%u label %s", ipconfig->interface,
 172                                                 address, prefixlen, label);
 173 }
 174
 175 const char *__connman_ipconfig_method2string(enum connman_ipconfig_method method)
 176 {
 177         switch (method) {
 178         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
 179                 break;
 180         case CONNMAN_IPCONFIG_METHOD_OFF:
 181                 return "off";
 182         case CONNMAN_IPCONFIG_METHOD_STATIC:
 183                 return "static";
 184         case CONNMAN_IPCONFIG_METHOD_DHCP:
 185                 return "dhcp";
 186         }
 187
 188         return NULL;
 189 }
 190
 191 enum connman_ipconfig_method __connman_ipconfig_string2method(const char *method)
 192 {
 193         if (g_strcmp0(method, "off") == 0)
 194                 return CONNMAN_IPCONFIG_METHOD_OFF;
 195         else if (g_strcmp0(method, "static") == 0)
 196                 return CONNMAN_IPCONFIG_METHOD_STATIC;
 197         else if (g_strcmp0(method, "dhcp") == 0)
 198                 return CONNMAN_IPCONFIG_METHOD_DHCP;
 199         else
 200                 return CONNMAN_IPCONFIG_METHOD_UNKNOWN;
 201 }
 202
 203 static void append_variant(DBusMessageIter *iter, const char *prefix,
 204                                         const char *key, int type, void *val)
 205 {
 206         char *str;
 207
 208         if (prefix == NULL) {
 209                 connman_dbus_dict_append_variant(iter, key, type, val);
 210                 return;
 211         }
 212
 213         str = g_strdup_printf("%s%s", prefix, key);
 214         if (str != NULL)
 215                 connman_dbus_dict_append_variant(iter, str, type, val);
 216
 217         g_free(str);
 218 }
 219
 220 void __connman_ipconfig_append_ipv4(struct connman_ipconfig *ipconfig,
 221                                 DBusMessageIter *iter, const char *prefix)
 222 {
 223         const char *str;
 224
 225         str = __connman_ipconfig_method2string(ipconfig->method);
 226         if (str == NULL)
 227                 return;
 228
 229         append_variant(iter, prefix, "Method", DBUS_TYPE_STRING, &str);
 230 }
 231
 232 int __connman_ipconfig_set_ipv4(struct connman_ipconfig *ipconfig,
 233                                 const char *key, DBusMessageIter *value)
 234 {
 235         int type = dbus_message_iter_get_arg_type(value);
 236
 237         DBG("ipconfig %p key %s type %d", ipconfig, key, type);
 238
 239         if (g_strcmp0(key, "Method") == 0) {
 240                 const char *method;
 241
 242                 if (type != DBUS_TYPE_STRING)
 243                         return -EINVAL;
 244
 245                 dbus_message_iter_get_basic(value, &method);
 246
 247                 ipconfig->method = __connman_ipconfig_string2method(method);
 248         } else
 249                 return -EINVAL;
 250
 251         return 0;
 252 }
 253
 254 int __connman_ipconfig_load(struct connman_ipconfig *ipconfig,
 255                 GKeyFile *keyfile, const char *identifier, const char *prefix)
 256 {
 257         DBG("ipconfig %p identifier %s", ipconfig, identifier);
 258
 259         return 0;
 260 }
 261
 262 int __connman_ipconfig_save(struct connman_ipconfig *ipconfig,
 263                 GKeyFile *keyfile, const char *identifier, const char *prefix)
 264 {
 265         DBG("ipconfig %p identifier %s", ipconfig, identifier);
 266
 267         return 0;
 268 }
 269
 270 static GSList *driver_list = NULL;
 271
 272 static gint compare_priority(gconstpointer a, gconstpointer b)
 273 {
 274         const struct connman_ipconfig_driver *driver1 = a;
 275         const struct connman_ipconfig_driver *driver2 = b;
 276
 277         return driver2->priority - driver1->priority;
 278 }
 279
 280 /**
 281  * connman_ipconfig_driver_register:
 282  * @driver: IP configuration driver
 283  *
 284  * Register a new IP configuration driver
 285  *
 286  * Returns: %0 on success
 287  */
 288 int connman_ipconfig_driver_register(struct connman_ipconfig_driver *driver)
 289 {
 290         DBG("driver %p name %s", driver, driver->name);
 291
 292         driver_list = g_slist_insert_sorted(driver_list, driver,
 293                                                         compare_priority);
 294
 295         return 0;
 296 }
 297
 298 /**
 299  * connman_ipconfig_driver_unregister:
 300  * @driver: IP configuration driver
 301  *
 302  * Remove a previously registered IP configuration driver.
 303  */
 304 void connman_ipconfig_driver_unregister(struct connman_ipconfig_driver *driver)
 305 {
 306         DBG("driver %p name %s", driver, driver->name);
 307
 308         driver_list = g_slist_remove(driver_list, driver);
 309 }