src/storage.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 "connman.h"
  27
  28 static GSList *storage_list = NULL;
  29
  30 static gint compare_priority(gconstpointer a, gconstpointer b)
  31 {
  32         const struct connman_storage *storage1 = a;
  33         const struct connman_storage *storage2 = b;
  34
  35         return storage2->priority - storage1->priority;
  36 }
  37
  38 /**
  39  * connman_storage_register:
  40  * @storage: storage module
  41  *
  42  * Register a new storage module
  43  *
  44  * Returns: %0 on success
  45  */
  46 int connman_storage_register(struct connman_storage *storage)
  47 {
  48         DBG("storage %p name %s", storage, storage->name);
  49
  50         storage_list = g_slist_insert_sorted(storage_list, storage,
  51                                                         compare_priority);
  52
  53         return 0;
  54 }
  55
  56 /**
  57  * connman_storage_unregister:
  58  * @storage: storage module
  59  *
  60  * Remove a previously registered storage module
  61  */
  62 void connman_storage_unregister(struct connman_storage *storage)
  63 {
  64         DBG("storage %p name %s", storage, storage->name);
  65
  66         storage_list = g_slist_remove(storage_list, storage);
  67 }
  68
  69 int __connman_storage_load_device(struct connman_device *device)
  70 {
  71         GSList *list;
  72
  73         DBG("device %p", device);
  74
  75         for (list = storage_list; list; list = list->next) {
  76                 struct connman_storage *storage = list->data;
  77
  78                 if (storage->device_load) {
  79                         if (storage->device_load(device) == 0)
  80                                 return 0;
  81                 }
  82         }
  83
  84         return -ENOENT;
  85 }
  86
  87 int __connman_storage_save_device(struct connman_device *device)
  88 {
  89         GSList *list;
  90
  91         DBG("device %p", device);
  92
  93         for (list = storage_list; list; list = list->next) {
  94                 struct connman_storage *storage = list->data;
  95
  96                 if (storage->device_save) {
  97                         if (storage->device_save(device) == 0)
  98                                 return 0;
  99                 }
 100         }
 101
 102         return -ENOENT;
 103 }
 104
 105 int __connman_storage_load_network(struct connman_network *network)
 106 {
 107         GSList *list;
 108
 109         DBG("network %p", network);
 110
 111         for (list = storage_list; list; list = list->next) {
 112                 struct connman_storage *storage = list->data;
 113
 114                 if (storage->network_load) {
 115                         if (storage->network_load(network) == 0)
 116                                 return 0;
 117                 }
 118         }
 119
 120         return -ENOENT;
 121 }
 122
 123 int __connman_storage_save_network(struct connman_network *network)
 124 {
 125         GSList *list;
 126
 127         DBG("network %p", network);
 128
 129         for (list = storage_list; list; list = list->next) {
 130                 struct connman_storage *storage = list->data;
 131
 132                 if (storage->network_save) {
 133                         if (storage->network_save(network) == 0)
 134                                 return 0;
 135                 }
 136         }
 137
 138         return -ENOENT;
 139 }
 140
 141 int __connman_storage_init(void)
 142 {
 143         DBG("");
 144
 145         return 0;
 146 }
 147
 148 void __connman_storage_cleanup(void)
 149 {
 150         DBG("");
 151 }
 152
 153 static int do_load(GKeyFile *keyfile, struct connman_element *element)
 154 {
 155         const gchar *value;
 156
 157         DBG("element %p name %s", element, element->name);
 158
 159         value = g_key_file_get_string(keyfile, element->path,
 160                                                 "Policy", NULL);
 161         if (value != NULL)
 162                 element->policy = __connman_element_string2policy(value);
 163
 164         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK)
 165                 element->remember = g_key_file_get_boolean(keyfile,
 166                                         element->path, "Remember", NULL);
 167
 168         value = g_key_file_get_string(keyfile, element->path,
 169                                                 "WiFi.Security", NULL);
 170         if (value != NULL)
 171                 connman_element_set_property(element,
 172                                 CONNMAN_PROPERTY_ID_WIFI_SECURITY, &value);
 173
 174         value = g_key_file_get_string(keyfile, element->path,
 175                                                 "WiFi.Passphrase", NULL);
 176         if (value != NULL)
 177                 connman_element_set_property(element,
 178                                 CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE, &value);
 179
 180         return 0;
 181 }
 182
 183 int __connman_element_load(struct connman_element *element)
 184 {
 185         GKeyFile *keyfile;
 186         gchar *pathname, *data = NULL;
 187         gsize length;
 188
 189         DBG("element %p name %s", element, element->name);
 190
 191         pathname = g_strdup_printf("%s/elements.conf", STORAGEDIR);
 192         if (pathname == NULL)
 193                 return -ENOMEM;
 194
 195         keyfile = g_key_file_new();
 196
 197         if (g_file_get_contents(pathname, &data, &length, NULL) == FALSE) {
 198                 g_free(pathname);
 199                 return -ENOENT;
 200         }
 201
 202         g_free(pathname);
 203
 204         if (g_key_file_load_from_data(keyfile, data, length,
 205                                                         0, NULL) == FALSE) {
 206                 g_free(data);
 207                 return -EILSEQ;
 208         }
 209
 210         g_free(data);
 211
 212         do_load(keyfile, element);
 213
 214         g_key_file_free(keyfile);
 215
 216         return 0;
 217 }
 218
 219 static void do_update(GKeyFile *keyfile, struct connman_element *element)
 220 {
 221         GSList *list;
 222         char *value;
 223         const char *str;
 224
 225         DBG("element %p name %s", element, element->name);
 226
 227         g_key_file_set_string(keyfile, element->path, "Name", element->name);
 228
 229         str = __connman_element_policy2string(element->policy);
 230         if (str != NULL)
 231                 g_key_file_set_string(keyfile, element->path, "Policy", str);
 232
 233         //g_key_file_set_boolean(keyfile, element->path, "Enabled",
 234         //                                              element->enabled);
 235
 236         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK)
 237                 g_key_file_set_boolean(keyfile, element->path, "Remember",
 238                                                         element->remember);
 239
 240         __connman_element_lock(element);
 241
 242         for (list = element->properties; list; list = list->next) {
 243                 struct connman_property *property = list->data;
 244
 245                 if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
 246                         continue;
 247
 248                 if (property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE)
 249                         continue;
 250
 251                 if (property->type == DBUS_TYPE_STRING)
 252                         g_key_file_set_string(keyfile, element->path,
 253                                         property->name, property->value);
 254         }
 255
 256         __connman_element_unlock(element);
 257
 258         if (connman_element_get_value(element,
 259                         CONNMAN_PROPERTY_ID_WIFI_SECURITY, &value) == 0)
 260                 g_key_file_set_string(keyfile, element->path,
 261                                                 "WiFi.Security", value);
 262
 263         if (connman_element_get_value(element,
 264                         CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE, &value) == 0)
 265                 g_key_file_set_string(keyfile, element->path,
 266                                                 "WiFi.Passphrase", value);
 267 }
 268
 269 int __connman_element_store(struct connman_element *element)
 270 {
 271         GKeyFile *keyfile;
 272         gchar *pathname, *data = NULL;
 273         gsize length;
 274
 275         DBG("element %p name %s", element, element->name);
 276
 277         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE &&
 278                                 element->type != CONNMAN_ELEMENT_TYPE_NETWORK)
 279                 return -EINVAL;
 280
 281         if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_FAKE)
 282                 return -EINVAL;
 283
 284         pathname = g_strdup_printf("%s/elements.conf", STORAGEDIR);
 285         if (pathname == NULL)
 286                 return -ENOMEM;
 287
 288         keyfile = g_key_file_new();
 289
 290         if (g_file_get_contents(pathname, &data, &length, NULL) == FALSE)
 291                 goto update;
 292
 293         if (length > 0) {
 294                 if (g_key_file_load_from_data(keyfile, data, length,
 295                                                         0, NULL) == FALSE)
 296                         goto done;
 297         }
 298
 299         g_free(data);
 300
 301 update:
 302         do_update(keyfile, element);
 303
 304         data = g_key_file_to_data(keyfile, &length, NULL);
 305
 306         g_file_set_contents(pathname, data, length, NULL);
 307
 308 done:
 309         g_free(data);
 310
 311         g_key_file_free(keyfile);
 312
 313         g_free(pathname);
 314
 315         return 0;
 316 }