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