src/storage.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  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 <unistd.h>
  28 #include <sys/stat.h>
  29 #include <dirent.h>
  30
  31 #include <connman/storage.h>
  32
  33 #include "connman.h"
  34
  35 #define SETTINGS        "settings"
  36 #define DEFAULT         "default.profile"
  37
  38 #define MODE            (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | \
  39                         S_IXGRP | S_IROTH | S_IXOTH)
  40
  41 static GKeyFile *storage_load(const char *pathname)
  42 {
  43         GKeyFile *keyfile = NULL;
  44         GError *error = NULL;
  45
  46         DBG("Loading %s", pathname);
  47
  48         keyfile = g_key_file_new();
  49
  50         if (!g_key_file_load_from_file(keyfile, pathname, 0, &error)) {
  51                 DBG("Unable to load %s: %s", pathname, error->message);
  52                 g_clear_error(&error);
  53
  54                 g_key_file_free(keyfile);
  55                 keyfile = NULL;
  56         }
  57
  58         return keyfile;
  59 }
  60
  61 static int storage_save(GKeyFile *keyfile, char *pathname)
  62 {
  63         gchar *data = NULL;
  64         gsize length = 0;
  65         GError *error = NULL;
  66         int ret = 0;
  67
  68         data = g_key_file_to_data(keyfile, &length, NULL);
  69
  70         if (!g_file_set_contents(pathname, data, length, &error)) {
  71                 DBG("Failed to store information: %s", error->message);
  72                 g_error_free(error);
  73                 ret = -EIO;
  74         }
  75
  76         g_free(data);
  77
  78         return ret;
  79 }
  80
  81 static void storage_delete(const char *pathname)
  82 {
  83         DBG("file path %s", pathname);
  84
  85         if (unlink(pathname) < 0)
  86                 connman_error("Failed to remove %s", pathname);
  87 }
  88
  89 GKeyFile *__connman_storage_load_global()
  90 {
  91         gchar *pathname;
  92         GKeyFile *keyfile = NULL;
  93
  94         pathname = g_strdup_printf("%s/%s", STORAGEDIR, SETTINGS);
  95         if(pathname == NULL)
  96                 return NULL;
  97
  98         keyfile = storage_load(pathname);
  99
 100         g_free(pathname);
 101
 102         return keyfile;
 103 }
 104
 105 int __connman_storage_save_global(GKeyFile *keyfile)
 106 {
 107         gchar *pathname;
 108         int ret;
 109
 110         pathname = g_strdup_printf("%s/%s", STORAGEDIR, SETTINGS);
 111         if(pathname == NULL)
 112                 return -ENOMEM;
 113
 114         ret = storage_save(keyfile, pathname);
 115
 116         g_free(pathname);
 117
 118         return ret;
 119 }
 120
 121 void __connman_storage_delete_global()
 122 {
 123         gchar *pathname;
 124
 125         pathname = g_strdup_printf("%s/%s", STORAGEDIR, SETTINGS);
 126         if(pathname == NULL)
 127                 return;
 128
 129         storage_delete(pathname);
 130
 131         g_free(pathname);
 132 }
 133
 134 GKeyFile *__connman_storage_load_config(const char *ident)
 135 {
 136         gchar *pathname;
 137         GKeyFile *keyfile = NULL;
 138
 139         pathname = g_strdup_printf("%s/%s.config", STORAGEDIR, ident);
 140         if(pathname == NULL)
 141                 return NULL;
 142
 143         keyfile = storage_load(pathname);
 144
 145         g_free(pathname);
 146
 147         return keyfile;
 148 }
 149
 150 void __connman_storage_save_config(GKeyFile *keyfile, const char *ident)
 151 {
 152         gchar *pathname;
 153
 154         pathname = g_strdup_printf("%s/%s.config", STORAGEDIR, ident);
 155         if(pathname == NULL)
 156                 return;
 157
 158         storage_save(keyfile, pathname);
 159 }
 160
 161 void __connman_storage_delete_config(const char *ident)
 162 {
 163         gchar *pathname;
 164
 165         pathname = g_strdup_printf("%s/%s.config", STORAGEDIR, ident);
 166         if(pathname == NULL)
 167                 return;
 168
 169         storage_delete(pathname);
 170
 171         g_free(pathname);
 172 }
 173
 174 GKeyFile *__connman_storage_open_service(const char *service_id)
 175 {
 176         gchar *pathname;
 177         GKeyFile *keyfile = NULL;
 178
 179         pathname = g_strdup_printf("%s/%s/%s", STORAGEDIR, service_id, SETTINGS);
 180         if(pathname == NULL)
 181                 return NULL;
 182
 183         keyfile =  storage_load(pathname);
 184         if (keyfile) {
 185                 g_free(pathname);
 186                 return keyfile;
 187         }
 188
 189         g_free(pathname);
 190
 191         keyfile = g_key_file_new();
 192
 193         return keyfile;
 194 }
 195
 196 gchar **connman_storage_get_services()
 197 {
 198         struct dirent *d;
 199         gchar *str;
 200         DIR *dir;
 201         GString *result;
 202         gchar **services = NULL;
 203         struct stat buf;
 204         int ret;
 205
 206         dir = opendir(STORAGEDIR);
 207         if (dir == NULL)
 208                 return NULL;
 209
 210         result = g_string_new(NULL);
 211
 212         while ((d = readdir(dir))) {
 213                 if (strcmp(d->d_name, ".") == 0 ||
 214                                 strcmp(d->d_name, "..") == 0 ||
 215                                 strncmp(d->d_name, "provider_", 9) == 0)
 216                         continue;
 217
 218                 switch (d->d_type) {
 219                 case DT_DIR:
 220                         /*
 221                          * If the settings file is not found, then
 222                          * assume this directory is not a services dir.
 223                          */
 224                         str = g_strdup_printf("%s/%s/settings", STORAGEDIR,
 225                                                                 d->d_name);
 226                         ret = stat(str, &buf);
 227                         g_free(str);
 228                         if (ret < 0)
 229                                 continue;
 230
 231                         g_string_append_printf(result, "%s/", d->d_name);
 232                         break;
 233                 }
 234         }
 235
 236         closedir(dir);
 237
 238         str = g_string_free(result, FALSE);
 239         if (str) {
 240                 str[strlen(str) - 1] = '\0';
 241                 services = g_strsplit(str, "/", -1);
 242         }
 243         g_free(str);
 244
 245         return services;
 246 }
 247
 248 GKeyFile *connman_storage_load_service(const char *service_id)
 249 {
 250         gchar *pathname;
 251         GKeyFile *keyfile = NULL;
 252
 253         pathname = g_strdup_printf("%s/%s/%s", STORAGEDIR, service_id, SETTINGS);
 254         if(pathname == NULL)
 255                 return NULL;
 256
 257         keyfile =  storage_load(pathname);
 258         g_free(pathname);
 259
 260         return keyfile;
 261 }
 262
 263 int __connman_storage_save_service(GKeyFile *keyfile, const char *service_id)
 264 {
 265         int ret = 0;
 266         gchar *pathname, *dirname;
 267
 268         dirname = g_strdup_printf("%s/%s", STORAGEDIR, service_id);
 269         if(dirname == NULL)
 270                 return -ENOMEM;
 271
 272         /* If the dir doesn't exist, create it */
 273         if (!g_file_test(dirname, G_FILE_TEST_IS_DIR)) {
 274                 if(mkdir(dirname, MODE) < 0) {
 275                         if (errno != EEXIST) {
 276                                 g_free(dirname);
 277                                 return -errno;
 278                         }
 279                 }
 280         }
 281
 282         pathname = g_strdup_printf("%s/%s", dirname, SETTINGS);
 283
 284         g_free(dirname);
 285
 286         ret = storage_save(keyfile, pathname);
 287
 288         g_free(pathname);
 289
 290         return ret;
 291 }
 292
 293 GKeyFile *__connman_storage_load_provider(const char *identifier)
 294 {
 295         gchar *pathname;
 296         GKeyFile *keyfile;
 297
 298         pathname = g_strdup_printf("%s/%s_%s/%s", STORAGEDIR, "provider",
 299                         identifier, SETTINGS);
 300         if (pathname == NULL)
 301                 return NULL;
 302
 303         keyfile = storage_load(pathname);
 304         g_free(pathname);
 305
 306         return keyfile;
 307 }
 308
 309 void __connman_storage_save_provider(GKeyFile *keyfile, const char *identifier)
 310 {
 311         gchar *pathname, *dirname;
 312
 313         dirname = g_strdup_printf("%s/%s_%s", STORAGEDIR,
 314                         "provider", identifier);
 315         if (dirname == NULL)
 316                 return;
 317
 318         if (g_file_test(dirname, G_FILE_TEST_IS_DIR) == FALSE &&
 319                         mkdir(dirname, MODE) < 0) {
 320                 g_free(dirname);
 321                 return;
 322         }
 323
 324         pathname = g_strdup_printf("%s/%s", dirname, SETTINGS);
 325         g_free(dirname);
 326
 327         storage_save(keyfile, pathname);
 328         g_free(pathname);
 329 }
 330
 331 gchar **__connman_storage_get_providers(void)
 332 {
 333         GSList *list = NULL;
 334         int num = 0, i = 0;
 335         struct dirent *d;
 336         gchar *str;
 337         DIR *dir;
 338         struct stat buf;
 339         int ret;
 340         char **providers;
 341         GSList *iter;
 342
 343         dir = opendir(STORAGEDIR);
 344         if (dir == NULL)
 345                 return NULL;
 346
 347         while ((d = readdir(dir))) {
 348                 if (strcmp(d->d_name, ".") == 0 ||
 349                                 strcmp(d->d_name, "..") == 0 ||
 350                                 strncmp(d->d_name, "provider_", 9) != 0)
 351                         continue;
 352
 353                 if (d->d_type == DT_DIR) {
 354                         str = g_strdup_printf("%s/%s/settings", STORAGEDIR,
 355                                         d->d_name);
 356                         ret = stat(str, &buf);
 357                         g_free(str);
 358                         if (ret < 0)
 359                                 continue;
 360                         list = g_slist_prepend(list, g_strdup(d->d_name));
 361                         num += 1;
 362                 }
 363         }
 364
 365         closedir(dir);
 366
 367         providers = g_try_new0(char *, num + 1);
 368         for (iter = list; iter != NULL; iter = g_slist_next(iter)) {
 369                 if (providers != NULL)
 370                         providers[i] = iter->data;
 371                 else
 372                         g_free(iter->data);
 373                 i += 1;
 374         }
 375         g_slist_free(list);
 376
 377         return providers;
 378 }
 379
 380 /*
 381  * This function migrates keys from default.profile to settings file.
 382  * This can be removed once the migration is over.
 383 */
 384 void __connman_storage_migrate()
 385 {
 386         gchar *pathname;
 387         GKeyFile *keyfile_def = NULL;
 388         GKeyFile *keyfile = NULL;
 389         GError *error = NULL;
 390         connman_bool_t delete_old_config = TRUE;
 391         char **services, **keys, *value;
 392         int i, k, err;
 393         connman_bool_t val;
 394
 395         pathname = g_strdup_printf("%s/%s", STORAGEDIR, DEFAULT);
 396         if (pathname == NULL)
 397                 return;
 398
 399         /* If setting file exists, migration has been done. */
 400         keyfile = __connman_storage_load_global();
 401         if (keyfile) {
 402                 g_key_file_free(keyfile);
 403                 unlink(pathname);
 404                 g_free(pathname);
 405                 return;
 406         }
 407
 408         /* If default.profile exists, create new settings file */
 409         keyfile_def = storage_load(pathname);
 410         if (keyfile_def == NULL)
 411                 goto done;
 412
 413         services = g_key_file_get_groups(keyfile_def, NULL);
 414         for (i = 0; services != NULL && services[i] != NULL; i++) {
 415                 if (strncmp(services[i], "wifi_", 5) != 0 &&
 416                                 strncmp(services[i], "ethernet_", 9) != 0 &&
 417                                 strncmp(services[i], "cellular_", 9) != 0 &&
 418                                 strncmp(services[i], "bluetooth_", 10) != 0 &&
 419                                 strncmp(services[i], "wimax_", 6) != 0 &&
 420                                 strncmp(services[i], "vpn_", 4) != 0)
 421                         continue;
 422
 423                 keyfile = connman_storage_load_service(services[i]);
 424                 if (keyfile != NULL) {
 425                         g_key_file_free(keyfile);
 426                         DBG("already exists %s", services[i]);
 427                         continue;
 428                 }
 429
 430                 keyfile = g_key_file_new();
 431                 if (keyfile == NULL) {
 432                         connman_warn("Migrating %s failed", services[i]);
 433                         delete_old_config = FALSE;
 434                         continue;
 435                 }
 436
 437                 keys = g_key_file_get_keys(keyfile_def, services[i],
 438                                 NULL, NULL);
 439
 440                 for (k = 0; keys != NULL && keys[k] != NULL; k++) {
 441                         value = g_key_file_get_value(keyfile_def, services[i],
 442                                         keys[k], NULL);
 443                         g_key_file_set_value(keyfile, services[i],
 444                                         keys[k], value);
 445                         g_free(value);
 446                 }
 447
 448                 if (keys != NULL && keys[0] != NULL) {
 449                         err = __connman_storage_save_service(keyfile,
 450                                         services[i]);
 451                         if (err >= 0)
 452                                 DBG("migrated %s", services[i]);
 453                         else {
 454                                 connman_warn("Migrating %s failed %s",
 455                                                 services[i], strerror(-err));
 456                                 delete_old_config = FALSE;
 457                         }
 458                 } else
 459                         DBG("no keys in %s", services[i]);
 460
 461                 g_strfreev(keys);
 462                 g_key_file_free(keyfile);
 463         }
 464         g_strfreev(services);
 465
 466         /* Copy global settings from default.profile to settings. */
 467         keyfile = g_key_file_new();
 468
 469         val = g_key_file_get_boolean(keyfile_def, "global",
 470                                         "OfflineMode", &error);
 471         if (error != NULL) {
 472                 g_clear_error(&error);
 473                 val = FALSE;
 474         }
 475
 476         g_key_file_set_boolean(keyfile, "global",
 477                                         "OfflineMode", val);
 478
 479         /* Migrate Powered/Enable state key/value pairs from legacy
 480          * settings
 481          */
 482
 483         val = g_key_file_get_boolean(keyfile_def, "WiFi",
 484                                         "Enable", &error);
 485         if (error != NULL) {
 486                 g_clear_error(&error);
 487                 val = g_key_file_get_boolean(keyfile_def, "device_Wireless", "Powered", &error);
 488                 if (error != NULL) {
 489                         g_clear_error(&error);
 490                         val = FALSE;
 491                 }
 492         }
 493
 494         g_key_file_set_boolean(keyfile, "WiFi",
 495                                         "Enable", val);
 496
 497         val = g_key_file_get_boolean(keyfile_def, "Bluetooth",
 498                                         "Enable", &error);
 499         if (error != NULL) {
 500                 g_clear_error(&error);
 501                 val = g_key_file_get_boolean(keyfile_def, "device_Bluetooth", "Powered", &error);
 502                 if (error != NULL) {
 503                         g_clear_error(&error);
 504                         val = FALSE;
 505                 }
 506         }
 507
 508         g_key_file_set_boolean(keyfile, "Bluetooth",
 509                                         "Enable", val);
 510
 511         val = g_key_file_get_boolean(keyfile_def, "Wired",
 512                                         "Enable", &error);
 513         if (error != NULL) {
 514                 g_clear_error(&error);
 515                 val = g_key_file_get_boolean(keyfile_def, "device_Ethernet", "Powered", &error);
 516                 if (error != NULL) {
 517                         g_clear_error(&error);
 518                         val = FALSE;
 519                 }
 520         }
 521
 522         g_key_file_set_boolean(keyfile, "Wired",
 523                                         "Enable", val);
 524
 525         val = g_key_file_get_boolean(keyfile_def, "Cellular",
 526                                         "Enable", &error);
 527         if (error != NULL) {
 528                 g_clear_error(&error);
 529                 val = g_key_file_get_boolean(keyfile_def, "device_Cellular", "Powered", &error);
 530                 if (error != NULL) {
 531                         g_clear_error(&error);
 532                         val = FALSE;
 533                 }
 534         }
 535
 536         g_key_file_set_boolean(keyfile, "Cellular",
 537                                         "Enable", val);
 538
 539         val = g_key_file_get_boolean(keyfile_def, "WiMAX",
 540                                         "Enable", &error);
 541         if (error != NULL) {
 542                 g_clear_error(&error);
 543                 val = g_key_file_get_boolean(keyfile_def, "device_WiMAX", "Powered", &error);
 544                 if (error != NULL) {
 545                         g_clear_error(&error);
 546                         val = FALSE;
 547                 }
 548         }
 549
 550         g_key_file_set_boolean(keyfile, "WiMAX",
 551                                         "Enable", val);
 552
 553         if (__connman_storage_save_global(keyfile) < 0) {
 554                 connman_warn("Migrating global config failed");
 555                 delete_old_config = FALSE;
 556         }
 557
 558         g_key_file_free(keyfile);
 559
 560         g_key_file_free(keyfile_def);
 561
 562         if (delete_old_config == TRUE) {
 563                 DBG("migration done for %s", pathname);
 564                 unlink(pathname);
 565         }
 566 done:
 567         g_free(pathname);
 568 }