src/config.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 <stdio.h>
  28 #include <stdlib.h>
  29 #include <unistd.h>
  30 #include <string.h>
  31 #include <sys/vfs.h>
  32 #include <sys/inotify.h>
  33 #include <netdb.h>
  34 #include <glib.h>
  35
  36 #include <connman/provision.h>
  37 #include <connman/ipaddress.h>
  38 #include "connman.h"
  39
  40 struct connman_config_service {
  41         char *ident;
  42         char *name;
  43         char *type;
  44         void *ssid;
  45         unsigned int ssid_len;
  46         char *eap;
  47         char *identity;
  48         char *ca_cert_file;
  49         char *client_cert_file;
  50         char *private_key_file;
  51         char *private_key_passphrase;
  52         char *private_key_passphrase_type;
  53         char *phase2;
  54         char *passphrase;
  55         GSList *service_identifiers;
  56         char *config_ident; /* file prefix */
  57         char *config_entry; /* entry name */
  58         connman_bool_t hidden;
  59         char *ipv4_address;
  60         char *ipv4_netmask;
  61         char *ipv4_gateway;
  62         char *ipv6_address;
  63         unsigned char ipv6_prefix_length;
  64         char *ipv6_gateway;
  65         char *ipv6_privacy;
  66         char *mac;
  67         char **nameservers;
  68         char **search_domains;
  69         char **timeservers;
  70         char *domain_name;
  71 };
  72
  73 struct connman_config {
  74         char *ident;
  75         char *name;
  76         char *description;
  77         connman_bool_t protected;
  78         GHashTable *service_table;
  79 };
  80
  81 static GHashTable *config_table = NULL;
  82 static GSList *protected_services = NULL;
  83
  84 static connman_bool_t cleanup = FALSE;
  85
  86 /* Definition of possible strings in the .config files */
  87 #define CONFIG_KEY_NAME                "Name"
  88 #define CONFIG_KEY_DESC                "Description"
  89 #define CONFIG_KEY_PROT                "Protected"
  90
  91 #define SERVICE_KEY_TYPE               "Type"
  92 #define SERVICE_KEY_NAME               "Name"
  93 #define SERVICE_KEY_SSID               "SSID"
  94 #define SERVICE_KEY_EAP                "EAP"
  95 #define SERVICE_KEY_CA_CERT            "CACertFile"
  96 #define SERVICE_KEY_CL_CERT            "ClientCertFile"
  97 #define SERVICE_KEY_PRV_KEY            "PrivateKeyFile"
  98 #define SERVICE_KEY_PRV_KEY_PASS       "PrivateKeyPassphrase"
  99 #define SERVICE_KEY_PRV_KEY_PASS_TYPE  "PrivateKeyPassphraseType"
 100 #define SERVICE_KEY_IDENTITY           "Identity"
 101 #define SERVICE_KEY_PHASE2             "Phase2"
 102 #define SERVICE_KEY_PASSPHRASE         "Passphrase"
 103 #define SERVICE_KEY_HIDDEN             "Hidden"
 104
 105 #define SERVICE_KEY_IPv4               "IPv4"
 106 #define SERVICE_KEY_IPv6               "IPv6"
 107 #define SERVICE_KEY_IPv6_PRIVACY       "IPv6.Privacy"
 108 #define SERVICE_KEY_MAC                "MAC"
 109 #define SERVICE_KEY_NAMESERVERS        "Nameservers"
 110 #define SERVICE_KEY_SEARCH_DOMAINS     "SearchDomains"
 111 #define SERVICE_KEY_TIMESERVERS        "Timeservers"
 112 #define SERVICE_KEY_DOMAIN             "Domain"
 113
 114 static const char *config_possible_keys[] = {
 115         CONFIG_KEY_NAME,
 116         CONFIG_KEY_DESC,
 117         CONFIG_KEY_PROT,
 118         NULL,
 119 };
 120
 121 static const char *service_possible_keys[] = {
 122         SERVICE_KEY_TYPE,
 123         SERVICE_KEY_NAME,
 124         SERVICE_KEY_SSID,
 125         SERVICE_KEY_EAP,
 126         SERVICE_KEY_CA_CERT,
 127         SERVICE_KEY_CL_CERT,
 128         SERVICE_KEY_PRV_KEY,
 129         SERVICE_KEY_PRV_KEY_PASS,
 130         SERVICE_KEY_PRV_KEY_PASS_TYPE,
 131         SERVICE_KEY_IDENTITY,
 132         SERVICE_KEY_PHASE2,
 133         SERVICE_KEY_PASSPHRASE,
 134         SERVICE_KEY_HIDDEN,
 135         SERVICE_KEY_IPv4,
 136         SERVICE_KEY_IPv6,
 137         SERVICE_KEY_IPv6_PRIVACY,
 138         SERVICE_KEY_MAC,
 139         SERVICE_KEY_NAMESERVERS,
 140         SERVICE_KEY_SEARCH_DOMAINS,
 141         SERVICE_KEY_TIMESERVERS,
 142         SERVICE_KEY_DOMAIN,
 143         NULL,
 144 };
 145
 146 static void unregister_config(gpointer data)
 147 {
 148         struct connman_config *config = data;
 149
 150         connman_info("Removing configuration %s", config->ident);
 151
 152         g_hash_table_destroy(config->service_table);
 153
 154         g_free(config->description);
 155         g_free(config->name);
 156         g_free(config->ident);
 157         g_free(config);
 158 }
 159
 160 static void unregister_service(gpointer data)
 161 {
 162         struct connman_config_service *config_service = data;
 163         struct connman_service *service;
 164         char *service_id;
 165         GSList *list;
 166
 167         if (cleanup == TRUE)
 168                 goto free_only;
 169
 170         connman_info("Removing service configuration %s",
 171                                                 config_service->ident);
 172
 173         protected_services = g_slist_remove(protected_services,
 174                                                 config_service);
 175
 176         for (list = config_service->service_identifiers; list != NULL;
 177                                                         list = list->next) {
 178                 service_id = list->data;
 179
 180                 service = __connman_service_lookup_from_ident(service_id);
 181                 if (service != NULL) {
 182                         __connman_service_set_immutable(service, FALSE);
 183                         __connman_service_set_config(service, NULL, NULL);
 184                         __connman_service_remove(service);
 185
 186                         /*
 187                          * Ethernet service cannot be removed by
 188                          * __connman_service_remove() so reset the ipconfig
 189                          * here.
 190                          */
 191                         if (connman_service_get_type(service) ==
 192                                                 CONNMAN_SERVICE_TYPE_ETHERNET) {
 193                                 __connman_service_disconnect(service);
 194                                 __connman_service_reset_ipconfig(service,
 195                                         CONNMAN_IPCONFIG_TYPE_IPV4, NULL, NULL);
 196                                 __connman_service_reset_ipconfig(service,
 197                                         CONNMAN_IPCONFIG_TYPE_IPV6, NULL, NULL);
 198                                 __connman_service_set_ignore(service, TRUE);
 199
 200                                 /*
 201                                  * After these operations, user needs to
 202                                  * reconnect ethernet cable to get IP
 203                                  * address.
 204                                  */
 205                         }
 206                 }
 207
 208                 if (__connman_storage_remove_service(service_id) == FALSE)
 209                         DBG("Could not remove all files for service %s",
 210                                                                 service_id);
 211         }
 212
 213 free_only:
 214         g_free(config_service->ident);
 215         g_free(config_service->type);
 216         g_free(config_service->name);
 217         g_free(config_service->ssid);
 218         g_free(config_service->eap);
 219         g_free(config_service->identity);
 220         g_free(config_service->ca_cert_file);
 221         g_free(config_service->client_cert_file);
 222         g_free(config_service->private_key_file);
 223         g_free(config_service->private_key_passphrase);
 224         g_free(config_service->private_key_passphrase_type);
 225         g_free(config_service->phase2);
 226         g_free(config_service->passphrase);
 227         g_free(config_service->ipv4_address);
 228         g_free(config_service->ipv4_gateway);
 229         g_free(config_service->ipv4_netmask);
 230         g_free(config_service->ipv6_address);
 231         g_free(config_service->ipv6_gateway);
 232         g_free(config_service->ipv6_privacy);
 233         g_free(config_service->mac);
 234         g_strfreev(config_service->nameservers);
 235         g_strfreev(config_service->search_domains);
 236         g_strfreev(config_service->timeservers);
 237         g_free(config_service->domain_name);
 238         g_slist_free_full(config_service->service_identifiers, g_free);
 239         g_free(config_service->config_ident);
 240         g_free(config_service->config_entry);
 241         g_free(config_service);
 242 }
 243
 244 static void check_keys(GKeyFile *keyfile, const char *group,
 245                         const char **possible_keys)
 246 {
 247         char **avail_keys;
 248         gsize nb_avail_keys, i, j;
 249
 250         avail_keys = g_key_file_get_keys(keyfile, group, &nb_avail_keys, NULL);
 251         if (avail_keys == NULL)
 252                 return;
 253
 254         /*
 255          * For each key in the configuration file,
 256          * verify it is understood by connman
 257          */
 258         for (i = 0 ; i < nb_avail_keys; i++) {
 259                 for (j = 0; possible_keys[j] ; j++)
 260                         if (g_strcmp0(avail_keys[i], possible_keys[j]) == 0)
 261                                 break;
 262
 263                 if (possible_keys[j] == NULL)
 264                         connman_warn("Unknown configuration key %s in [%s]",
 265                                         avail_keys[i], group);
 266         }
 267
 268         g_strfreev(avail_keys);
 269 }
 270
 271 static connman_bool_t
 272 is_protected_service(struct connman_config_service *service)
 273 {
 274         GSList *list;
 275
 276         DBG("ident %s", service->ident);
 277
 278         for (list = protected_services; list; list = list->next) {
 279                 struct connman_config_service *s = list->data;
 280
 281                 if (g_strcmp0(s->type, service->type) != 0)
 282                         continue;
 283
 284                 if (s->ssid == NULL || service->ssid == NULL)
 285                         continue;
 286
 287                 if (s->ssid_len != service->ssid_len)
 288                         continue;
 289
 290                 if (g_strcmp0(service->type, "wifi") == 0 &&
 291                         strncmp(s->ssid, service->ssid, s->ssid_len) == 0) {
 292                         return TRUE;
 293                 }
 294         }
 295
 296         return FALSE;
 297 }
 298
 299 static int check_family(const char *address, int expected_family)
 300 {
 301         int family;
 302         int err = 0;
 303
 304         family = connman_inet_check_ipaddress(address);
 305         if (family < 0) {
 306                 DBG("Cannot get address family of %s (%d/%s)", address,
 307                         family, gai_strerror(family));
 308                 err = -EINVAL;
 309                 goto out;
 310         }
 311
 312         switch (family) {
 313         case AF_INET:
 314                 if (expected_family != AF_INET) {
 315                         DBG("Wrong type address %s, expecting IPv4", address);
 316                         err = -EINVAL;
 317                         goto out;
 318                 }
 319                 break;
 320         case AF_INET6:
 321                 if (expected_family != AF_INET6) {
 322                         DBG("Wrong type address %s, expecting IPv6", address);
 323                         err = -EINVAL;
 324                         goto out;
 325                 }
 326                 break;
 327         default:
 328                 DBG("Unsupported address family %d", family);
 329                 err = -EINVAL;
 330                 goto out;
 331         }
 332
 333 out:
 334         return err;
 335 }
 336
 337 static int parse_address(const char *address_str, int address_family,
 338                         char **address, char **netmask, char **gateway)
 339 {
 340         char *addr_str, *mask_str, *gw_str;
 341         int err = 0;
 342         char **route;
 343
 344         route = g_strsplit(address_str, "/", 0);
 345         if (route == NULL)
 346                 return -EINVAL;
 347
 348         addr_str = route[0];
 349         if (addr_str == NULL || addr_str[0] == '\0') {
 350                 err = -EINVAL;
 351                 goto out;
 352         }
 353
 354         if ((err = check_family(addr_str, address_family)) < 0)
 355                 goto out;
 356
 357         mask_str = route[1];
 358         if (mask_str == NULL || mask_str[0] == '\0') {
 359                 err = -EINVAL;
 360                 goto out;
 361         }
 362
 363         gw_str = route[2];
 364         if (gw_str == NULL || gw_str[0] == '\0') {
 365                 err = -EINVAL;
 366                 goto out;
 367         }
 368
 369         if ((err = check_family(gw_str, address_family)) < 0)
 370                 goto out;
 371
 372         g_free(*address);
 373         *address = g_strdup(addr_str);
 374
 375         g_free(*netmask);
 376         *netmask = g_strdup(mask_str);
 377
 378         g_free(*gateway);
 379         *gateway = g_strdup(gw_str);
 380
 381         DBG("address %s/%s via %s", *address, *netmask, *gateway);
 382
 383 out:
 384         g_strfreev(route);
 385
 386         return err;
 387 }
 388
 389 static int load_service_generic(GKeyFile *keyfile, const char *group,
 390                                 struct connman_config *config,
 391                                 struct connman_config_service *service)
 392 {
 393         char *str, *mask;
 394         char **strlist;
 395         gsize length;
 396
 397         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_IPv4, NULL);
 398         if (str != NULL) {
 399                 mask = NULL;
 400
 401                 if (parse_address(str, AF_INET, &service->ipv4_address,
 402                                         &mask, &service->ipv4_gateway) < 0) {
 403                         connman_warn("Invalid format for IPv4 address %s",
 404                                                                         str);
 405                         g_free(str);
 406                         goto err;
 407                 }
 408
 409                 if (g_strrstr(mask, ".") == NULL) {
 410                         /* We have netmask length */
 411                         in_addr_t addr;
 412                         struct in_addr netmask_in;
 413                         unsigned char prefix_len = 32;
 414                         char *ptr;
 415                         long int value = strtol(mask, &ptr, 10);
 416
 417                         if (ptr != mask && *ptr == '\0' && value <= 32)
 418                                 prefix_len = value;
 419
 420                         addr = 0xffffffff << (32 - prefix_len);
 421                         netmask_in.s_addr = htonl(addr);
 422                         service->ipv4_netmask =
 423                                 g_strdup(inet_ntoa(netmask_in));
 424
 425                         g_free(mask);
 426                 } else
 427                         service->ipv4_netmask = mask;
 428
 429                 g_free(str);
 430         }
 431
 432         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_IPv6, NULL);
 433         if (str != NULL) {
 434                 long int value;
 435                 char *ptr;
 436
 437                 mask = NULL;
 438
 439                 if (parse_address(str, AF_INET6, &service->ipv6_address,
 440                                         &mask, &service->ipv6_gateway) < 0) {
 441                         connman_warn("Invalid format for IPv6 address %s",
 442                                                                         str);
 443                         g_free(str);
 444                         goto err;
 445                 }
 446
 447                 value = strtol(mask, &ptr, 10);
 448                 if (ptr != mask && *ptr == '\0' && value <= 128)
 449                         service->ipv6_prefix_length = value;
 450                 else
 451                         service->ipv6_prefix_length = 128;
 452
 453                 g_free(mask);
 454                 g_free(str);
 455         }
 456
 457         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_IPv6_PRIVACY,
 458                                                                         NULL);
 459         if (str != NULL) {
 460                 g_free(service->ipv6_privacy);
 461                 service->ipv6_privacy = str;
 462         }
 463
 464         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_MAC, NULL);
 465         if (str != NULL) {
 466                 g_free(service->mac);
 467                 service->mac = str;
 468         }
 469
 470         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_DOMAIN, NULL);
 471         if (str != NULL) {
 472                 g_free(service->domain_name);
 473                 service->domain_name = str;
 474         }
 475
 476         strlist = g_key_file_get_string_list(keyfile, group,
 477                                         SERVICE_KEY_NAMESERVERS,
 478                                         &length, NULL);
 479         if (strlist != NULL) {
 480                 if (length != 0) {
 481                         g_strfreev(service->nameservers);
 482                         service->nameservers = strlist;
 483                 } else
 484                         g_strfreev(strlist);
 485         }
 486
 487         strlist = g_key_file_get_string_list(keyfile, group,
 488                                         SERVICE_KEY_SEARCH_DOMAINS,
 489                                         &length, NULL);
 490         if (strlist != NULL) {
 491                 if (length != 0) {
 492                         g_strfreev(service->search_domains);
 493                         service->search_domains = strlist;
 494                 } else
 495                         g_strfreev(strlist);
 496         }
 497
 498         strlist = g_key_file_get_string_list(keyfile, group,
 499                                         SERVICE_KEY_TIMESERVERS,
 500                                         &length, NULL);
 501         if (strlist != NULL) {
 502                 if (length != 0) {
 503                         g_strfreev(service->timeservers);
 504                         service->timeservers = strlist;
 505                 } else
 506                         g_strfreev(strlist);
 507         }
 508
 509         return 0;
 510
 511 err:
 512         g_free(service->ident);
 513         g_free(service->type);
 514         g_free(service->ipv4_address);
 515         g_free(service->ipv4_netmask);
 516         g_free(service->ipv4_gateway);
 517         g_free(service->ipv6_address);
 518         g_free(service->ipv6_gateway);
 519         g_free(service->mac);
 520         g_free(service);
 521
 522         return -EINVAL;
 523 }
 524
 525 static int load_service(GKeyFile *keyfile, const char *group,
 526                                                 struct connman_config *config)
 527 {
 528         struct connman_config_service *service;
 529         const char *ident;
 530         char *str, *hex_ssid;
 531         gboolean service_created = FALSE;
 532         int err;
 533
 534         /* Strip off "service_" prefix */
 535         ident = group + 8;
 536
 537         if (strlen(ident) < 1)
 538                 return -EINVAL;
 539
 540         /* Verify that provided keys are good */
 541         check_keys(keyfile, group, service_possible_keys);
 542
 543         service = g_hash_table_lookup(config->service_table, ident);
 544         if (service == NULL) {
 545                 service = g_try_new0(struct connman_config_service, 1);
 546                 if (service == NULL)
 547                         return -ENOMEM;
 548
 549                 service->ident = g_strdup(ident);
 550
 551                 service_created = TRUE;
 552         }
 553
 554         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_TYPE, NULL);
 555         if (str != NULL) {
 556                 g_free(service->type);
 557                 service->type = str;
 558         } else {
 559                 DBG("Type of the configured service is missing for group %s",
 560                                                                         group);
 561                 err = -EINVAL;
 562                 goto err;
 563         }
 564
 565         err = load_service_generic(keyfile, group, config, service);
 566         if (err != 0)
 567                 return err;
 568
 569         if (g_strcmp0(str, "ethernet") == 0) {
 570                 service->config_ident = g_strdup(config->ident);
 571                 service->config_entry = g_strdup_printf("service_%s",
 572                                                         service->ident);
 573
 574                 g_hash_table_insert(config->service_table, service->ident,
 575                                                                 service);
 576                 return 0;
 577         }
 578
 579         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_NAME, NULL);
 580         if (str != NULL) {
 581                 g_free(service->name);
 582                 service->name = str;
 583         }
 584
 585         hex_ssid = g_key_file_get_string(keyfile, group, SERVICE_KEY_SSID,
 586                                          NULL);
 587         if (hex_ssid != NULL) {
 588                 char *ssid;
 589                 unsigned int i, j = 0, hex;
 590                 size_t hex_ssid_len = strlen(hex_ssid);
 591
 592                 ssid = g_try_malloc0(hex_ssid_len / 2);
 593                 if (ssid == NULL) {
 594                         err = -ENOMEM;
 595                         g_free(hex_ssid);
 596                         goto err;
 597                 }
 598
 599                 for (i = 0; i < hex_ssid_len; i += 2) {
 600                         if (sscanf(hex_ssid + i, "%02x", &hex) <= 0) {
 601                                 connman_warn("Invalid SSID %s", hex_ssid);
 602                                 g_free(ssid);
 603                                 g_free(hex_ssid);
 604                                 err = -EILSEQ;
 605                                 goto err;
 606                         }
 607                         ssid[j++] = hex;
 608                 }
 609
 610                 g_free(hex_ssid);
 611
 612                 g_free(service->ssid);
 613                 service->ssid = ssid;
 614                 service->ssid_len = hex_ssid_len / 2;
 615         } else if (service->name != NULL) {
 616                 char *ssid;
 617                 unsigned int ssid_len;
 618
 619                 ssid_len = strlen(service->name);
 620                 ssid = g_try_malloc0(ssid_len);
 621                 if (ssid == NULL) {
 622                         err = -ENOMEM;
 623                         goto err;
 624                 }
 625
 626                 memcpy(ssid, service->name, ssid_len);
 627                 g_free(service->ssid);
 628                 service->ssid = ssid;
 629                 service->ssid_len = ssid_len;
 630         }
 631
 632         if (is_protected_service(service) == TRUE) {
 633                 connman_error("Trying to provision a protected service");
 634                 err = -EACCES;
 635                 goto err;
 636         }
 637
 638         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_EAP, NULL);
 639         if (str != NULL) {
 640                 g_free(service->eap);
 641                 service->eap = str;
 642         }
 643
 644         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_CA_CERT, NULL);
 645         if (str != NULL) {
 646                 g_free(service->ca_cert_file);
 647                 service->ca_cert_file = str;
 648         }
 649
 650         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_CL_CERT, NULL);
 651         if (str != NULL) {
 652                 g_free(service->client_cert_file);
 653                 service->client_cert_file = str;
 654         }
 655
 656         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_PRV_KEY, NULL);
 657         if (str != NULL) {
 658                 g_free(service->private_key_file);
 659                 service->private_key_file = str;
 660         }
 661
 662         str = g_key_file_get_string(keyfile, group,
 663                                                 SERVICE_KEY_PRV_KEY_PASS, NULL);
 664         if (str != NULL) {
 665                 g_free(service->private_key_passphrase);
 666                 service->private_key_passphrase = str;
 667         }
 668
 669         str = g_key_file_get_string(keyfile, group,
 670                                         SERVICE_KEY_PRV_KEY_PASS_TYPE, NULL);
 671         if (str != NULL) {
 672                 g_free(service->private_key_passphrase_type);
 673                 service->private_key_passphrase_type = str;
 674         }
 675
 676         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_IDENTITY, NULL);
 677         if (str != NULL) {
 678                 g_free(service->identity);
 679                 service->identity = str;
 680         }
 681
 682         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_PHASE2, NULL);
 683         if (str != NULL) {
 684                 g_free(service->phase2);
 685                 service->phase2 = str;
 686         }
 687
 688         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_PASSPHRASE,
 689                                         NULL);
 690         if (str != NULL) {
 691                 g_free(service->passphrase);
 692                 service->passphrase = str;
 693         }
 694
 695         service->config_ident = g_strdup(config->ident);
 696         service->config_entry = g_strdup_printf("service_%s", service->ident);
 697
 698         service->hidden = g_key_file_get_boolean(keyfile, group,
 699                                                 SERVICE_KEY_HIDDEN, NULL);
 700
 701         if (service_created)
 702                 g_hash_table_insert(config->service_table, service->ident,
 703                                         service);
 704
 705         if (config->protected == TRUE)
 706                 protected_services =
 707                         g_slist_prepend(protected_services, service);
 708
 709         connman_info("Adding service configuration %s", service->ident);
 710
 711         return 0;
 712
 713 err:
 714         if (service_created == TRUE) {
 715                 g_free(service->ident);
 716                 g_free(service->type);
 717                 g_free(service->name);
 718                 g_free(service->ssid);
 719                 g_free(service);
 720         }
 721
 722         return err;
 723 }
 724
 725 static int load_config(struct connman_config *config)
 726 {
 727         GKeyFile *keyfile;
 728         GError *error = NULL;
 729         gsize length;
 730         char **groups;
 731         char *str;
 732         gboolean protected, found = FALSE;
 733         int i;
 734
 735         DBG("config %p", config);
 736
 737         keyfile = __connman_storage_load_config(config->ident);
 738         if (keyfile == NULL)
 739                 return -EIO;
 740
 741         /* Verify keys validity of the global section */
 742         check_keys(keyfile, "global", config_possible_keys);
 743
 744         str = g_key_file_get_string(keyfile, "global", CONFIG_KEY_NAME, NULL);
 745         if (str != NULL) {
 746                 g_free(config->name);
 747                 config->name = str;
 748         }
 749
 750         str = g_key_file_get_string(keyfile, "global", CONFIG_KEY_DESC, NULL);
 751         if (str != NULL) {
 752                 g_free(config->description);
 753                 config->description = str;
 754         }
 755
 756         protected = g_key_file_get_boolean(keyfile, "global",
 757                                         CONFIG_KEY_PROT, &error);
 758         if (error == NULL)
 759                 config->protected = protected;
 760         else
 761                 config->protected = TRUE;
 762         g_clear_error(&error);
 763
 764         groups = g_key_file_get_groups(keyfile, &length);
 765
 766         for (i = 0; groups[i] != NULL; i++) {
 767                 if (g_str_has_prefix(groups[i], "service_") == TRUE) {
 768                         if (load_service(keyfile, groups[i], config) == 0)
 769                                 found = TRUE;
 770                 }
 771         }
 772
 773         if (found == FALSE)
 774                 connman_warn("Config file %s/%s.config does not contain any "
 775                         "configuration that can be provisioned!",
 776                         STORAGEDIR, config->ident);
 777
 778         g_strfreev(groups);
 779
 780         g_key_file_free(keyfile);
 781
 782         return 0;
 783 }
 784
 785 static struct connman_config *create_config(const char *ident)
 786 {
 787         struct connman_config *config;
 788
 789         DBG("ident %s", ident);
 790
 791         if (g_hash_table_lookup(config_table, ident) != NULL)
 792                 return NULL;
 793
 794         config = g_try_new0(struct connman_config, 1);
 795         if (config == NULL)
 796                 return NULL;
 797
 798         config->ident = g_strdup(ident);
 799
 800         config->service_table = g_hash_table_new_full(g_str_hash, g_str_equal,
 801                                                 NULL, unregister_service);
 802
 803         g_hash_table_insert(config_table, config->ident, config);
 804
 805         connman_info("Adding configuration %s", config->ident);
 806
 807         return config;
 808 }
 809
 810 static connman_bool_t validate_ident(const char *ident)
 811 {
 812         unsigned int i;
 813
 814         if (ident == NULL)
 815                 return FALSE;
 816
 817         for (i = 0; i < strlen(ident); i++)
 818                 if (g_ascii_isprint(ident[i]) == FALSE)
 819                         return FALSE;
 820
 821         return TRUE;
 822 }
 823
 824 static int read_configs(void)
 825 {
 826         GDir *dir;
 827
 828         DBG("");
 829
 830         dir = g_dir_open(STORAGEDIR, 0, NULL);
 831         if (dir != NULL) {
 832                 const gchar *file;
 833
 834                 while ((file = g_dir_read_name(dir)) != NULL) {
 835                         GString *str;
 836                         gchar *ident;
 837
 838                         if (g_str_has_suffix(file, ".config") == FALSE)
 839                                 continue;
 840
 841                         ident = g_strrstr(file, ".config");
 842                         if (ident == NULL)
 843                                 continue;
 844
 845                         str = g_string_new_len(file, ident - file);
 846                         if (str == NULL)
 847                                 continue;
 848
 849                         ident = g_string_free(str, FALSE);
 850
 851                         if (validate_ident(ident) == TRUE) {
 852                                 struct connman_config *config;
 853
 854                                 config = create_config(ident);
 855                                 if (config != NULL)
 856                                         load_config(config);
 857                         } else {
 858                                 connman_error("Invalid config ident %s", ident);
 859                         }
 860                         g_free(ident);
 861                 }
 862
 863                 g_dir_close(dir);
 864         }
 865
 866         return 0;
 867 }
 868
 869 static void config_notify_handler(struct inotify_event *event,
 870                                         const char *ident)
 871 {
 872         char *ext;
 873
 874         if (ident == NULL)
 875                 return;
 876
 877         if (g_str_has_suffix(ident, ".config") == FALSE)
 878                 return;
 879
 880         ext = g_strrstr(ident, ".config");
 881         if (ext == NULL)
 882                 return;
 883
 884         *ext = '\0';
 885
 886         if (validate_ident(ident) == FALSE) {
 887                 connman_error("Invalid config ident %s", ident);
 888                 return;
 889         }
 890
 891         if (event->mask & IN_CREATE)
 892                 create_config(ident);
 893
 894         if (event->mask & IN_MODIFY) {
 895                 struct connman_config *config;
 896
 897                 config = g_hash_table_lookup(config_table, ident);
 898                 if (config != NULL) {
 899                         int ret;
 900
 901                         g_hash_table_remove_all(config->service_table);
 902                         load_config(config);
 903                         ret = __connman_service_provision_changed(ident);
 904                         if (ret > 0) {
 905                                 /*
 906                                  * Re-scan the config file for any
 907                                  * changes
 908                                  */
 909                                 g_hash_table_remove_all(config->service_table);
 910                                 load_config(config);
 911                                 __connman_service_provision_changed(ident);
 912                         }
 913                 }
 914         }
 915
 916         if (event->mask & IN_DELETE)
 917                 g_hash_table_remove(config_table, ident);
 918 }
 919
 920 int __connman_config_init(void)
 921 {
 922         DBG("");
 923
 924         config_table = g_hash_table_new_full(g_str_hash, g_str_equal,
 925                                                 NULL, unregister_config);
 926
 927         connman_inotify_register(STORAGEDIR, config_notify_handler);
 928
 929         return read_configs();
 930 }
 931
 932 void __connman_config_cleanup(void)
 933 {
 934         DBG("");
 935
 936         cleanup = TRUE;
 937
 938         connman_inotify_unregister(STORAGEDIR, config_notify_handler);
 939
 940         g_hash_table_destroy(config_table);
 941         config_table = NULL;
 942
 943         cleanup = FALSE;
 944 }
 945
 946 static char *config_pem_fsid(const char *pem_file)
 947 {
 948         struct statfs buf;
 949         unsigned *fsid = (unsigned *) &buf.f_fsid;
 950         unsigned long long fsid64;
 951
 952         if (pem_file == NULL)
 953                 return NULL;
 954
 955         if (statfs(pem_file, &buf) < 0) {
 956                 connman_error("statfs error %s for %s",
 957                                                 strerror(errno), pem_file);
 958                 return NULL;
 959         }
 960
 961         fsid64 = ((unsigned long long) fsid[0] << 32) | fsid[1];
 962
 963         return g_strdup_printf("%llx", fsid64);
 964 }
 965
 966 static void provision_service_wifi(gpointer key,
 967                                 struct connman_config_service *config,
 968                                 struct connman_service *service,
 969                                 struct connman_network *network,
 970                                 const void *ssid, unsigned int ssid_len)
 971 {
 972         if (config->eap != NULL)
 973                 __connman_service_set_string(service, "EAP", config->eap);
 974
 975         if (config->identity != NULL)
 976                 __connman_service_set_string(service, "Identity",
 977                                                         config->identity);
 978
 979         if (config->ca_cert_file != NULL)
 980                 __connman_service_set_string(service, "CACertFile",
 981                                                         config->ca_cert_file);
 982
 983         if (config->client_cert_file != NULL)
 984                 __connman_service_set_string(service, "ClientCertFile",
 985                                                 config->client_cert_file);
 986
 987         if (config->private_key_file != NULL)
 988                 __connman_service_set_string(service, "PrivateKeyFile",
 989                                                 config->private_key_file);
 990
 991         if (g_strcmp0(config->private_key_passphrase_type, "fsid") == 0 &&
 992                                         config->private_key_file != NULL) {
 993                 char *fsid;
 994
 995                 fsid = config_pem_fsid(config->private_key_file);
 996                 if (fsid == NULL)
 997                         return;
 998
 999                 g_free(config->private_key_passphrase);
1000                 config->private_key_passphrase = fsid;
1001         }
1002
1003         if (config->private_key_passphrase != NULL) {
1004                 __connman_service_set_string(service, "PrivateKeyPassphrase",
1005                                                 config->private_key_passphrase);
1006                 /*
1007                  * TODO: Support for PEAP with both identity and key passwd.
1008                  * In that case, we should check if both of them are found
1009                  * from the config file. If not, we should not set the
1010                  * service passphrase in order for the UI to request for an
1011                  * additional passphrase.
1012                  */
1013         }
1014
1015         if (config->phase2 != NULL)
1016                 __connman_service_set_string(service, "Phase2", config->phase2);
1017
1018         if (config->passphrase != NULL)
1019                 __connman_service_set_string(service, "Passphrase", config->passphrase);
1020
1021         if (config->hidden == TRUE)
1022                 __connman_service_set_hidden(service);
1023 }
1024
1025 static void provision_service(gpointer key, gpointer value,
1026                                                         gpointer user_data)
1027 {
1028         struct connman_service *service = user_data;
1029         struct connman_config_service *config = value;
1030         struct connman_network *network;
1031         const void *service_id;
1032         enum connman_service_type type;
1033         const void *ssid;
1034         unsigned int ssid_len;
1035
1036         type = connman_service_get_type(service);
1037         if (type == CONNMAN_SERVICE_TYPE_WIFI &&
1038                                 g_strcmp0(config->type, "wifi") != 0)
1039                 return;
1040
1041         if (type == CONNMAN_SERVICE_TYPE_ETHERNET &&
1042                                 g_strcmp0(config->type, "ethernet") != 0)
1043                 return;
1044
1045         DBG("service %p ident %s", service,
1046                                         __connman_service_get_ident(service));
1047
1048         network = __connman_service_get_network(service);
1049         if (network == NULL) {
1050                 connman_error("Service has no network set");
1051                 return;
1052         }
1053
1054         DBG("network %p ident %s", network,
1055                                 connman_network_get_identifier(network));
1056
1057         if (config->mac != NULL) {
1058                 struct connman_device *device;
1059                 const char *device_addr;
1060
1061                 device = connman_network_get_device(network);
1062                 if (device == NULL) {
1063                         connman_error("Network device is missing");
1064                         return;
1065                 }
1066
1067                 device_addr = connman_device_get_string(device, "Address");
1068
1069                 DBG("wants %s has %s", config->mac, device_addr);
1070
1071                 if (g_ascii_strcasecmp(device_addr, config->mac) != 0)
1072                         return;
1073         }
1074
1075         if (g_strcmp0(config->type, "wifi") == 0 &&
1076                                 type == CONNMAN_SERVICE_TYPE_WIFI) {
1077                 ssid = connman_network_get_blob(network, "WiFi.SSID",
1078                                                 &ssid_len);
1079                 if (ssid == NULL) {
1080                         connman_error("Network SSID not set");
1081                         return;
1082                 }
1083
1084                 if (config->ssid == NULL || ssid_len != config->ssid_len)
1085                         return;
1086
1087                 if (memcmp(config->ssid, ssid, ssid_len) != 0)
1088                         return;
1089         }
1090
1091         if (config->ipv6_address != NULL) {
1092                 struct connman_ipaddress *address;
1093
1094                 if (config->ipv6_prefix_length == 0 ||
1095                                         config->ipv6_gateway == NULL) {
1096                         DBG("IPv6 prefix or gateway missing");
1097                         return;
1098                 }
1099
1100                 address = connman_ipaddress_alloc(AF_INET6);
1101                 if (address == NULL)
1102                         return;
1103
1104                 connman_ipaddress_set_ipv6(address, config->ipv6_address,
1105                                         config->ipv6_prefix_length,
1106                                         config->ipv6_gateway);
1107
1108                 connman_network_set_ipv6_method(network,
1109                                                 CONNMAN_IPCONFIG_METHOD_FIXED);
1110
1111                 if (connman_network_set_ipaddress(network, address) < 0)
1112                         DBG("Unable to set IPv6 address to network %p",
1113                                                                 network);
1114
1115                 connman_ipaddress_free(address);
1116         }
1117
1118         if (config->ipv6_privacy != NULL) {
1119                 struct connman_ipconfig *ipconfig;
1120
1121                 ipconfig = __connman_service_get_ip6config(service);
1122                 if (ipconfig != NULL)
1123                         __connman_ipconfig_ipv6_set_privacy(ipconfig,
1124                                                         config->ipv6_privacy);
1125         }
1126
1127         if (config->ipv4_address != NULL) {
1128                 struct connman_ipaddress *address;
1129
1130                 if (config->ipv4_netmask == 0 ||
1131                                         config->ipv4_gateway == NULL) {
1132                         DBG("IPv4 netmask or gateway missing");
1133                         return;
1134                 }
1135
1136                 address = connman_ipaddress_alloc(AF_INET);
1137                 if (address == NULL)
1138                         return;
1139
1140                 connman_ipaddress_set_ipv4(address, config->ipv4_address,
1141                                         config->ipv4_netmask,
1142                                         config->ipv4_gateway);
1143
1144                 connman_network_set_ipv4_method(network,
1145                                                 CONNMAN_IPCONFIG_METHOD_FIXED);
1146
1147                 if (connman_network_set_ipaddress(network, address) < 0)
1148                         DBG("Unable to set IPv4 address to network %p",
1149                                                                 network);
1150
1151                 connman_ipaddress_free(address);
1152         }
1153
1154         __connman_service_disconnect(service);
1155
1156         service_id = __connman_service_get_ident(service);
1157         config->service_identifiers =
1158                 g_slist_prepend(config->service_identifiers,
1159                                 g_strdup(service_id));
1160
1161         __connman_service_set_immutable(service, TRUE);
1162
1163         __connman_service_set_favorite_delayed(service, TRUE, TRUE);
1164
1165         __connman_service_set_config(service, config->config_ident,
1166                                                 config->config_entry);
1167
1168         if (config->domain_name != NULL)
1169                 __connman_service_set_domainname(service, config->domain_name);
1170
1171         if (config->nameservers != NULL) {
1172                 int i;
1173
1174                 __connman_service_nameserver_clear(service);
1175
1176                 for (i = 0; config->nameservers[i] != NULL; i++) {
1177                         __connman_service_nameserver_append(service,
1178                                                 config->nameservers[i], FALSE);
1179                 }
1180         }
1181
1182         if (config->search_domains != NULL)
1183                 __connman_service_set_search_domains(service,
1184                                                 config->search_domains);
1185
1186         if (config->timeservers != NULL)
1187                 __connman_service_set_timeservers(service,
1188                                                 config->timeservers);
1189
1190         if (g_strcmp0(config->type, "wifi") == 0 &&
1191                                 type == CONNMAN_SERVICE_TYPE_WIFI) {
1192                 provision_service_wifi(key, config, service, network,
1193                                                         ssid, ssid_len);
1194         } else
1195                 __connman_service_connect(service);
1196
1197         __connman_service_mark_dirty();
1198
1199         __connman_service_save(service);
1200
1201         __connman_service_auto_connect();
1202 }
1203
1204 int __connman_config_provision_service(struct connman_service *service)
1205 {
1206         enum connman_service_type type;
1207         GHashTableIter iter;
1208         gpointer value, key;
1209
1210         /* For now only WiFi and Ethernet services are supported */
1211         type = connman_service_get_type(service);
1212
1213         DBG("service %p type %d", service, type);
1214
1215         if (type != CONNMAN_SERVICE_TYPE_WIFI &&
1216                                         type != CONNMAN_SERVICE_TYPE_ETHERNET)
1217                 return -ENOSYS;
1218
1219         g_hash_table_iter_init(&iter, config_table);
1220
1221         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
1222                 struct connman_config *config = value;
1223
1224                 g_hash_table_foreach(config->service_table,
1225                                                 provision_service, service);
1226         }
1227
1228         return 0;
1229 }
1230
1231 int __connman_config_provision_service_ident(struct connman_service *service,
1232                         const char *ident, const char *file, const char *entry)
1233 {
1234         enum connman_service_type type;
1235         struct connman_config *config;
1236         int ret = 0;
1237
1238         /* For now only WiFi and Ethernet services are supported */
1239         type = connman_service_get_type(service);
1240
1241         DBG("service %p type %d", service, type);
1242
1243         if (type != CONNMAN_SERVICE_TYPE_WIFI &&
1244                                         type != CONNMAN_SERVICE_TYPE_ETHERNET)
1245                 return -ENOSYS;
1246
1247         config = g_hash_table_lookup(config_table, ident);
1248         if (config != NULL) {
1249                 GHashTableIter iter;
1250                 gpointer value, key;
1251                 gboolean found = FALSE;
1252
1253                 g_hash_table_iter_init(&iter, config->service_table);
1254
1255                 /*
1256                  * Check if we need to remove individual service if it
1257                  * is missing from config file.
1258                  */
1259                 if (file != NULL && entry != NULL) {
1260                         while (g_hash_table_iter_next(&iter, &key,
1261                                                         &value) == TRUE) {
1262                                 struct connman_config_service *config_service;
1263
1264                                 config_service = value;
1265
1266                                 if (g_strcmp0(config_service->config_ident,
1267                                                                 file) != 0)
1268                                         continue;
1269
1270                                 if (g_strcmp0(config_service->config_entry,
1271                                                                 entry) != 0)
1272                                         continue;
1273
1274                                 found = TRUE;
1275                                 break;
1276                         }
1277
1278                         DBG("found %d ident %s file %s entry %s", found, ident,
1279                                                                 file, entry);
1280
1281                         if (found == FALSE) {
1282                                 /*
1283                                  * The entry+8 will skip "service_" prefix
1284                                  */
1285                                 g_hash_table_remove(config->service_table,
1286                                                 entry + 8);
1287                                 ret = 1;
1288                         }
1289                 }
1290
1291                 g_hash_table_foreach(config->service_table,
1292                                                 provision_service, service);
1293         }
1294
1295         return ret;
1296 }
1297
1298 struct connman_config_entry **connman_config_get_entries(const char *type)
1299 {
1300         GHashTableIter iter_file, iter_config;
1301         gpointer value, key;
1302         struct connman_config_entry **entries = NULL;
1303         int i = 0, count;
1304
1305         g_hash_table_iter_init(&iter_file, config_table);
1306         while (g_hash_table_iter_next(&iter_file, &key, &value) == TRUE) {
1307                 struct connman_config *config_file = value;
1308
1309                 count = g_hash_table_size(config_file->service_table);
1310
1311                 entries = g_try_realloc(entries, (i + count + 1) *
1312                                         sizeof(struct connman_config_entry *));
1313                 if (entries == NULL)
1314                         return NULL;
1315
1316                 g_hash_table_iter_init(&iter_config,
1317                                                 config_file->service_table);
1318                 while (g_hash_table_iter_next(&iter_config, &key,
1319                                                         &value) == TRUE) {
1320                         struct connman_config_service *config = value;
1321
1322                         if (type != NULL &&
1323                                         g_strcmp0(config->type, type) != 0)
1324                                 continue;
1325
1326                         entries[i] = g_try_new0(struct connman_config_entry,
1327                                                 1);
1328                         if (entries[i] == NULL)
1329                                 goto cleanup;
1330
1331                         entries[i]->ident = g_strdup(config->ident);
1332                         entries[i]->name = g_strdup(config->name);
1333                         entries[i]->ssid = g_try_malloc0(config->ssid_len + 1);
1334                         if (entries[i]->ssid == NULL)
1335                                 goto cleanup;
1336
1337                         memcpy(entries[i]->ssid, config->ssid,
1338                                                         config->ssid_len);
1339                         entries[i]->ssid_len = config->ssid_len;
1340                         entries[i]->hidden = config->hidden;
1341
1342                         i++;
1343                 }
1344         }
1345
1346         if (entries != NULL) {
1347                 entries = g_try_realloc(entries, (i + 1) *
1348                                         sizeof(struct connman_config_entry *));
1349                 if (entries == NULL)
1350                         return NULL;
1351
1352                 entries[i] = NULL;
1353
1354                 DBG("%d provisioned AP found", i);
1355         }
1356
1357         return entries;
1358
1359 cleanup:
1360         connman_config_free_entries(entries);
1361         return NULL;
1362 }
1363
1364 void connman_config_free_entries(struct connman_config_entry **entries)
1365 {
1366         int i;
1367
1368         if (entries == NULL)
1369                 return;
1370
1371         for (i = 0; entries[i]; i++) {
1372                 g_free(entries[i]->ident);
1373                 g_free(entries[i]->name);
1374                 g_free(entries[i]->ssid);
1375                 g_free(entries[i]);
1376         }
1377
1378         g_free(entries);
1379         return;
1380 }