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         connman_bool_t virtual;
  60         char *virtual_file;
  61         char *ipv4_address;
  62         char *ipv4_netmask;
  63         char *ipv4_gateway;
  64         char *ipv6_address;
  65         unsigned char ipv6_prefix_length;
  66         char *ipv6_gateway;
  67         char *ipv6_privacy;
  68         char *mac;
  69         char **nameservers;
  70         char **search_domains;
  71         char **timeservers;
  72         char *domain_name;
  73 };
  74
  75 struct connman_config {
  76         char *ident;
  77         char *name;
  78         char *description;
  79         connman_bool_t protected;
  80         GHashTable *service_table;
  81 };
  82
  83 static GHashTable *config_table = NULL;
  84 static GSList *protected_services = NULL;
  85
  86 static connman_bool_t cleanup = FALSE;
  87
  88 /* Definition of possible strings in the .config files */
  89 #define CONFIG_KEY_NAME                "Name"
  90 #define CONFIG_KEY_DESC                "Description"
  91 #define CONFIG_KEY_PROT                "Protected"
  92
  93 #define SERVICE_KEY_TYPE               "Type"
  94 #define SERVICE_KEY_NAME               "Name"
  95 #define SERVICE_KEY_SSID               "SSID"
  96 #define SERVICE_KEY_EAP                "EAP"
  97 #define SERVICE_KEY_CA_CERT            "CACertFile"
  98 #define SERVICE_KEY_CL_CERT            "ClientCertFile"
  99 #define SERVICE_KEY_PRV_KEY            "PrivateKeyFile"
 100 #define SERVICE_KEY_PRV_KEY_PASS       "PrivateKeyPassphrase"
 101 #define SERVICE_KEY_PRV_KEY_PASS_TYPE  "PrivateKeyPassphraseType"
 102 #define SERVICE_KEY_IDENTITY           "Identity"
 103 #define SERVICE_KEY_PHASE2             "Phase2"
 104 #define SERVICE_KEY_PASSPHRASE         "Passphrase"
 105 #define SERVICE_KEY_HIDDEN             "Hidden"
 106
 107 #define SERVICE_KEY_IPv4               "IPv4"
 108 #define SERVICE_KEY_IPv6               "IPv6"
 109 #define SERVICE_KEY_IPv6_PRIVACY       "IPv6.Privacy"
 110 #define SERVICE_KEY_MAC                "MAC"
 111 #define SERVICE_KEY_NAMESERVERS        "Nameservers"
 112 #define SERVICE_KEY_SEARCH_DOMAINS     "SearchDomains"
 113 #define SERVICE_KEY_TIMESERVERS        "Timeservers"
 114 #define SERVICE_KEY_DOMAIN             "Domain"
 115
 116 static const char *config_possible_keys[] = {
 117         CONFIG_KEY_NAME,
 118         CONFIG_KEY_DESC,
 119         CONFIG_KEY_PROT,
 120         NULL,
 121 };
 122
 123 static const char *service_possible_keys[] = {
 124         SERVICE_KEY_TYPE,
 125         SERVICE_KEY_NAME,
 126         SERVICE_KEY_SSID,
 127         SERVICE_KEY_EAP,
 128         SERVICE_KEY_CA_CERT,
 129         SERVICE_KEY_CL_CERT,
 130         SERVICE_KEY_PRV_KEY,
 131         SERVICE_KEY_PRV_KEY_PASS,
 132         SERVICE_KEY_PRV_KEY_PASS_TYPE,
 133         SERVICE_KEY_IDENTITY,
 134         SERVICE_KEY_PHASE2,
 135         SERVICE_KEY_PASSPHRASE,
 136         SERVICE_KEY_HIDDEN,
 137         SERVICE_KEY_IPv4,
 138         SERVICE_KEY_IPv6,
 139         SERVICE_KEY_IPv6_PRIVACY,
 140         SERVICE_KEY_MAC,
 141         SERVICE_KEY_NAMESERVERS,
 142         SERVICE_KEY_SEARCH_DOMAINS,
 143         SERVICE_KEY_TIMESERVERS,
 144         SERVICE_KEY_DOMAIN,
 145         NULL,
 146 };
 147
 148 static void unregister_config(gpointer data)
 149 {
 150         struct connman_config *config = data;
 151
 152         connman_info("Removing configuration %s", config->ident);
 153
 154         g_hash_table_destroy(config->service_table);
 155
 156         g_free(config->description);
 157         g_free(config->name);
 158         g_free(config->ident);
 159         g_free(config);
 160 }
 161
 162 static void unregister_service(gpointer data)
 163 {
 164         struct connman_config_service *config_service = data;
 165         struct connman_service *service;
 166         char *service_id;
 167         GSList *list;
 168
 169         if (cleanup == TRUE)
 170                 goto free_only;
 171
 172         connman_info("Removing service configuration %s",
 173                                                 config_service->ident);
 174
 175         protected_services = g_slist_remove(protected_services,
 176                                                 config_service);
 177
 178         if (config_service->virtual == TRUE)
 179                 goto free_only;
 180
 181         for (list = config_service->service_identifiers; list != NULL;
 182                                                         list = list->next) {
 183                 service_id = list->data;
 184
 185                 service = __connman_service_lookup_from_ident(service_id);
 186                 if (service != NULL) {
 187                         __connman_service_set_immutable(service, FALSE);
 188                         __connman_service_set_config(service, NULL, NULL);
 189                         __connman_service_remove(service);
 190
 191                         /*
 192                          * Ethernet service cannot be removed by
 193                          * __connman_service_remove() so reset the ipconfig
 194                          * here.
 195                          */
 196                         if (connman_service_get_type(service) ==
 197                                                 CONNMAN_SERVICE_TYPE_ETHERNET) {
 198                                 __connman_service_disconnect(service);
 199                                 __connman_service_reset_ipconfig(service,
 200                                         CONNMAN_IPCONFIG_TYPE_IPV4, NULL, NULL);
 201                                 __connman_service_reset_ipconfig(service,
 202                                         CONNMAN_IPCONFIG_TYPE_IPV6, NULL, NULL);
 203                                 __connman_service_set_ignore(service, TRUE);
 204
 205                                 /*
 206                                  * After these operations, user needs to
 207                                  * reconnect ethernet cable to get IP
 208                                  * address.
 209                                  */
 210                         }
 211                 }
 212
 213                 if (__connman_storage_remove_service(service_id) == FALSE)
 214                         DBG("Could not remove all files for service %s",
 215                                                                 service_id);
 216         }
 217
 218 free_only:
 219         g_free(config_service->ident);
 220         g_free(config_service->type);
 221         g_free(config_service->name);
 222         g_free(config_service->ssid);
 223         g_free(config_service->eap);
 224         g_free(config_service->identity);
 225         g_free(config_service->ca_cert_file);
 226         g_free(config_service->client_cert_file);
 227         g_free(config_service->private_key_file);
 228         g_free(config_service->private_key_passphrase);
 229         g_free(config_service->private_key_passphrase_type);
 230         g_free(config_service->phase2);
 231         g_free(config_service->passphrase);
 232         g_free(config_service->ipv4_address);
 233         g_free(config_service->ipv4_gateway);
 234         g_free(config_service->ipv4_netmask);
 235         g_free(config_service->ipv6_address);
 236         g_free(config_service->ipv6_gateway);
 237         g_free(config_service->ipv6_privacy);
 238         g_free(config_service->mac);
 239         g_strfreev(config_service->nameservers);
 240         g_strfreev(config_service->search_domains);
 241         g_strfreev(config_service->timeservers);
 242         g_free(config_service->domain_name);
 243         g_slist_free_full(config_service->service_identifiers, g_free);
 244         g_free(config_service->config_ident);
 245         g_free(config_service->config_entry);
 246         g_free(config_service->virtual_file);
 247         g_free(config_service);
 248 }
 249
 250 static void check_keys(GKeyFile *keyfile, const char *group,
 251                         const char **possible_keys)
 252 {
 253         char **avail_keys;
 254         gsize nb_avail_keys, i, j;
 255
 256         avail_keys = g_key_file_get_keys(keyfile, group, &nb_avail_keys, NULL);
 257         if (avail_keys == NULL)
 258                 return;
 259
 260         /*
 261          * For each key in the configuration file,
 262          * verify it is understood by connman
 263          */
 264         for (i = 0 ; i < nb_avail_keys; i++) {
 265                 for (j = 0; possible_keys[j] ; j++)
 266                         if (g_strcmp0(avail_keys[i], possible_keys[j]) == 0)
 267                                 break;
 268
 269                 if (possible_keys[j] == NULL)
 270                         connman_warn("Unknown configuration key %s in [%s]",
 271                                         avail_keys[i], group);
 272         }
 273
 274         g_strfreev(avail_keys);
 275 }
 276
 277 static connman_bool_t
 278 is_protected_service(struct connman_config_service *service)
 279 {
 280         GSList *list;
 281
 282         DBG("ident %s", service->ident);
 283
 284         for (list = protected_services; list; list = list->next) {
 285                 struct connman_config_service *s = list->data;
 286
 287                 if (g_strcmp0(s->type, service->type) != 0)
 288                         continue;
 289
 290                 if (s->ssid == NULL || service->ssid == NULL)
 291                         continue;
 292
 293                 if (s->ssid_len != service->ssid_len)
 294                         continue;
 295
 296                 if (g_strcmp0(service->type, "wifi") == 0 &&
 297                         strncmp(s->ssid, service->ssid, s->ssid_len) == 0) {
 298                         return TRUE;
 299                 }
 300         }
 301
 302         return FALSE;
 303 }
 304
 305 static int check_family(const char *address, int expected_family)
 306 {
 307         int family;
 308         int err = 0;
 309
 310         family = connman_inet_check_ipaddress(address);
 311         if (family < 0) {
 312                 DBG("Cannot get address family of %s (%d/%s)", address,
 313                         family, gai_strerror(family));
 314                 err = -EINVAL;
 315                 goto out;
 316         }
 317
 318         switch (family) {
 319         case AF_INET:
 320                 if (expected_family != AF_INET) {
 321                         DBG("Wrong type address %s, expecting IPv4", address);
 322                         err = -EINVAL;
 323                         goto out;
 324                 }
 325                 break;
 326         case AF_INET6:
 327                 if (expected_family != AF_INET6) {
 328                         DBG("Wrong type address %s, expecting IPv6", address);
 329                         err = -EINVAL;
 330                         goto out;
 331                 }
 332                 break;
 333         default:
 334                 DBG("Unsupported address family %d", family);
 335                 err = -EINVAL;
 336                 goto out;
 337         }
 338
 339 out:
 340         return err;
 341 }
 342
 343 static int parse_address(const char *address_str, int address_family,
 344                         char **address, char **netmask, char **gateway)
 345 {
 346         char *addr_str, *mask_str, *gw_str;
 347         int err = 0;
 348         char **route;
 349
 350         route = g_strsplit(address_str, "/", 0);
 351         if (route == NULL)
 352                 return -EINVAL;
 353
 354         addr_str = route[0];
 355         if (addr_str == NULL || addr_str[0] == '\0') {
 356                 err = -EINVAL;
 357                 goto out;
 358         }
 359
 360         if ((err = check_family(addr_str, address_family)) < 0)
 361                 goto out;
 362
 363         mask_str = route[1];
 364         if (mask_str == NULL || mask_str[0] == '\0') {
 365                 err = -EINVAL;
 366                 goto out;
 367         }
 368
 369         gw_str = route[2];
 370         if (gw_str == NULL || gw_str[0] == '\0') {
 371                 err = -EINVAL;
 372                 goto out;
 373         }
 374
 375         if ((err = check_family(gw_str, address_family)) < 0)
 376                 goto out;
 377
 378         g_free(*address);
 379         *address = g_strdup(addr_str);
 380
 381         g_free(*netmask);
 382         *netmask = g_strdup(mask_str);
 383
 384         g_free(*gateway);
 385         *gateway = g_strdup(gw_str);
 386
 387         DBG("address %s/%s via %s", *address, *netmask, *gateway);
 388
 389 out:
 390         g_strfreev(route);
 391
 392         return err;
 393 }
 394
 395 static connman_bool_t load_service_generic(GKeyFile *keyfile,
 396                         const char *group, struct connman_config *config,
 397                         struct connman_config_service *service)
 398 {
 399         char *str, *mask;
 400         char **strlist;
 401         gsize length;
 402
 403         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_IPv4, NULL);
 404         if (str != NULL) {
 405                 mask = NULL;
 406
 407                 if (parse_address(str, AF_INET, &service->ipv4_address,
 408                                         &mask, &service->ipv4_gateway) < 0) {
 409                         connman_warn("Invalid format for IPv4 address %s",
 410                                                                         str);
 411                         g_free(str);
 412                         goto err;
 413                 }
 414
 415                 if (g_strrstr(mask, ".") == NULL) {
 416                         /* We have netmask length */
 417                         in_addr_t addr;
 418                         struct in_addr netmask_in;
 419                         unsigned char prefix_len = 32;
 420                         char *ptr;
 421                         long int value = strtol(mask, &ptr, 10);
 422
 423                         if (ptr != mask && *ptr == '\0' && value <= 32)
 424                                 prefix_len = value;
 425
 426                         addr = 0xffffffff << (32 - prefix_len);
 427                         netmask_in.s_addr = htonl(addr);
 428                         service->ipv4_netmask =
 429                                 g_strdup(inet_ntoa(netmask_in));
 430
 431                         g_free(mask);
 432                 } else
 433                         service->ipv4_netmask = mask;
 434
 435                 g_free(str);
 436         }
 437
 438         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_IPv6, NULL);
 439         if (str != NULL) {
 440                 long int value;
 441                 char *ptr;
 442
 443                 mask = NULL;
 444
 445                 if (parse_address(str, AF_INET6, &service->ipv6_address,
 446                                         &mask, &service->ipv6_gateway) < 0) {
 447                         connman_warn("Invalid format for IPv6 address %s",
 448                                                                         str);
 449                         g_free(str);
 450                         goto err;
 451                 }
 452
 453                 value = strtol(mask, &ptr, 10);
 454                 if (ptr != mask && *ptr == '\0' && value <= 128)
 455                         service->ipv6_prefix_length = value;
 456                 else
 457                         service->ipv6_prefix_length = 128;
 458
 459                 g_free(mask);
 460                 g_free(str);
 461         }
 462
 463         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_IPv6_PRIVACY,
 464                                                                         NULL);
 465         if (str != NULL) {
 466                 g_free(service->ipv6_privacy);
 467                 service->ipv6_privacy = str;
 468         }
 469
 470         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_MAC, NULL);
 471         if (str != NULL) {
 472                 g_free(service->mac);
 473                 service->mac = str;
 474         }
 475
 476         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_DOMAIN, NULL);
 477         if (str != NULL) {
 478                 g_free(service->domain_name);
 479                 service->domain_name = str;
 480         }
 481
 482         strlist = g_key_file_get_string_list(keyfile, group,
 483                                         SERVICE_KEY_NAMESERVERS,
 484                                         &length, NULL);
 485         if (strlist != NULL) {
 486                 if (length != 0) {
 487                         g_strfreev(service->nameservers);
 488                         service->nameservers = strlist;
 489                 } else
 490                         g_strfreev(strlist);
 491         }
 492
 493         strlist = g_key_file_get_string_list(keyfile, group,
 494                                         SERVICE_KEY_SEARCH_DOMAINS,
 495                                         &length, NULL);
 496         if (strlist != NULL) {
 497                 if (length != 0) {
 498                         g_strfreev(service->search_domains);
 499                         service->search_domains = strlist;
 500                 } else
 501                         g_strfreev(strlist);
 502         }
 503
 504         strlist = g_key_file_get_string_list(keyfile, group,
 505                                         SERVICE_KEY_TIMESERVERS,
 506                                         &length, NULL);
 507         if (strlist != NULL) {
 508                 if (length != 0) {
 509                         g_strfreev(service->timeservers);
 510                         service->timeservers = strlist;
 511                 } else
 512                         g_strfreev(strlist);
 513         }
 514
 515         return TRUE;
 516
 517 err:
 518         g_free(service->ident);
 519         g_free(service->type);
 520         g_free(service->ipv4_address);
 521         g_free(service->ipv4_netmask);
 522         g_free(service->ipv4_gateway);
 523         g_free(service->ipv6_address);
 524         g_free(service->ipv6_gateway);
 525         g_free(service->mac);
 526         g_free(service);
 527
 528         return FALSE;
 529 }
 530
 531 static connman_bool_t load_service(GKeyFile *keyfile, const char *group,
 532                                                 struct connman_config *config)
 533 {
 534         struct connman_config_service *service;
 535         const char *ident;
 536         char *str, *hex_ssid;
 537         gboolean service_created = FALSE;
 538
 539         /* Strip off "service_" prefix */
 540         ident = group + 8;
 541
 542         if (strlen(ident) < 1)
 543                 return FALSE;
 544
 545         /* Verify that provided keys are good */
 546         check_keys(keyfile, group, service_possible_keys);
 547
 548         service = g_hash_table_lookup(config->service_table, ident);
 549         if (service == NULL) {
 550                 service = g_try_new0(struct connman_config_service, 1);
 551                 if (service == NULL)
 552                         return FALSE;
 553
 554                 service->ident = g_strdup(ident);
 555
 556                 service_created = TRUE;
 557         }
 558
 559         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_TYPE, NULL);
 560         if (str != NULL) {
 561                 g_free(service->type);
 562                 service->type = str;
 563         } else {
 564                 DBG("Type of the configured service is missing for group %s",
 565                                                                         group);
 566                 goto err;
 567         }
 568
 569         if (load_service_generic(keyfile, group, config, service) == FALSE)
 570                 return FALSE;
 571
 572         if (g_strcmp0(str, "ethernet") == 0) {
 573                 service->config_ident = g_strdup(config->ident);
 574                 service->config_entry = g_strdup_printf("service_%s",
 575                                                         service->ident);
 576
 577                 g_hash_table_insert(config->service_table, service->ident,
 578                                                                 service);
 579                 return 0;
 580         }
 581
 582         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_NAME, NULL);
 583         if (str != NULL) {
 584                 g_free(service->name);
 585                 service->name = str;
 586         }
 587
 588         hex_ssid = g_key_file_get_string(keyfile, group, SERVICE_KEY_SSID,
 589                                          NULL);
 590         if (hex_ssid != NULL) {
 591                 char *ssid;
 592                 unsigned int i, j = 0, hex;
 593                 size_t hex_ssid_len = strlen(hex_ssid);
 594
 595                 ssid = g_try_malloc0(hex_ssid_len / 2);
 596                 if (ssid == NULL) {
 597                         g_free(hex_ssid);
 598                         goto err;
 599                 }
 600
 601                 for (i = 0; i < hex_ssid_len; i += 2) {
 602                         if (sscanf(hex_ssid + i, "%02x", &hex) <= 0) {
 603                                 connman_warn("Invalid SSID %s", hex_ssid);
 604                                 g_free(ssid);
 605                                 g_free(hex_ssid);
 606                                 goto err;
 607                         }
 608                         ssid[j++] = hex;
 609                 }
 610
 611                 g_free(hex_ssid);
 612
 613                 g_free(service->ssid);
 614                 service->ssid = ssid;
 615                 service->ssid_len = hex_ssid_len / 2;
 616         } else if (service->name != NULL) {
 617                 char *ssid;
 618                 unsigned int ssid_len;
 619
 620                 ssid_len = strlen(service->name);
 621                 ssid = g_try_malloc0(ssid_len);
 622                 if (ssid == NULL)
 623                         goto err;
 624
 625                 memcpy(ssid, service->name, ssid_len);
 626                 g_free(service->ssid);
 627                 service->ssid = ssid;
 628                 service->ssid_len = ssid_len;
 629         }
 630
 631         if (is_protected_service(service) == TRUE) {
 632                 connman_error("Trying to provision a protected service");
 633                 goto err;
 634         }
 635
 636         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_EAP, NULL);
 637         if (str != NULL) {
 638                 g_free(service->eap);
 639                 service->eap = str;
 640         }
 641
 642         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_CA_CERT, NULL);
 643         if (str != NULL) {
 644                 g_free(service->ca_cert_file);
 645                 service->ca_cert_file = str;
 646         }
 647
 648         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_CL_CERT, NULL);
 649         if (str != NULL) {
 650                 g_free(service->client_cert_file);
 651                 service->client_cert_file = str;
 652         }
 653
 654         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_PRV_KEY, NULL);
 655         if (str != NULL) {
 656                 g_free(service->private_key_file);
 657                 service->private_key_file = str;
 658         }
 659
 660         str = g_key_file_get_string(keyfile, group,
 661                                                 SERVICE_KEY_PRV_KEY_PASS, NULL);
 662         if (str != NULL) {
 663                 g_free(service->private_key_passphrase);
 664                 service->private_key_passphrase = str;
 665         }
 666
 667         str = g_key_file_get_string(keyfile, group,
 668                                         SERVICE_KEY_PRV_KEY_PASS_TYPE, NULL);
 669         if (str != NULL) {
 670                 g_free(service->private_key_passphrase_type);
 671                 service->private_key_passphrase_type = str;
 672         }
 673
 674         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_IDENTITY, NULL);
 675         if (str != NULL) {
 676                 g_free(service->identity);
 677                 service->identity = str;
 678         }
 679
 680         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_PHASE2, NULL);
 681         if (str != NULL) {
 682                 g_free(service->phase2);
 683                 service->phase2 = str;
 684         }
 685
 686         str = g_key_file_get_string(keyfile, group, SERVICE_KEY_PASSPHRASE,
 687                                         NULL);
 688         if (str != NULL) {
 689                 g_free(service->passphrase);
 690                 service->passphrase = str;
 691         }
 692
 693         service->config_ident = g_strdup(config->ident);
 694         service->config_entry = g_strdup_printf("service_%s", service->ident);
 695
 696         service->hidden = g_key_file_get_boolean(keyfile, group,
 697                                                 SERVICE_KEY_HIDDEN, NULL);
 698
 699         if (service_created)
 700                 g_hash_table_insert(config->service_table, service->ident,
 701                                         service);
 702
 703         if (config->protected == TRUE)
 704                 protected_services =
 705                         g_slist_prepend(protected_services, service);
 706
 707         connman_info("Adding service configuration %s", service->ident);
 708
 709         return TRUE;
 710
 711 err:
 712         if (service_created == TRUE) {
 713                 g_free(service->ident);
 714                 g_free(service->type);
 715                 g_free(service->name);
 716                 g_free(service->ssid);
 717                 g_free(service);
 718         }
 719
 720         return FALSE;
 721 }
 722
 723 static connman_bool_t load_service_from_keyfile(GKeyFile *keyfile,
 724                                                 struct connman_config *config)
 725 {
 726         connman_bool_t found = FALSE;
 727         char **groups;
 728         int i;
 729
 730         groups = g_key_file_get_groups(keyfile, NULL);
 731
 732         for (i = 0; groups[i] != NULL; i++) {
 733                 if (g_str_has_prefix(groups[i], "service_") == FALSE)
 734                         continue;
 735                 if (load_service(keyfile, groups[i], config) == TRUE)
 736                         found = TRUE;
 737         }
 738
 739         g_strfreev(groups);
 740
 741         return found;
 742 }
 743
 744 static int load_config(struct connman_config *config)
 745 {
 746         GError *error = NULL;
 747         gboolean protected;
 748         GKeyFile *keyfile;
 749         char *str;
 750
 751         DBG("config %p", config);
 752
 753         keyfile = __connman_storage_load_config(config->ident);
 754         if (keyfile == NULL)
 755                 return -EIO;
 756
 757         /* Verify keys validity of the global section */
 758         check_keys(keyfile, "global", config_possible_keys);
 759
 760         str = g_key_file_get_string(keyfile, "global", CONFIG_KEY_NAME, NULL);
 761         if (str != NULL) {
 762                 g_free(config->name);
 763                 config->name = str;
 764         }
 765
 766         str = g_key_file_get_string(keyfile, "global", CONFIG_KEY_DESC, NULL);
 767         if (str != NULL) {
 768                 g_free(config->description);
 769                 config->description = str;
 770         }
 771
 772         protected = g_key_file_get_boolean(keyfile, "global",
 773                                         CONFIG_KEY_PROT, &error);
 774         if (error == NULL)
 775                 config->protected = protected;
 776         else
 777                 config->protected = TRUE;
 778         g_clear_error(&error);
 779
 780         if (load_service_from_keyfile(keyfile, config) == FALSE)
 781                 connman_warn("Config file %s/%s.config does not contain any "
 782                         "configuration that can be provisioned!",
 783                         STORAGEDIR, config->ident);
 784
 785         g_key_file_free(keyfile);
 786
 787         return 0;
 788 }
 789
 790 static struct connman_config *create_config(const char *ident)
 791 {
 792         struct connman_config *config;
 793
 794         DBG("ident %s", ident);
 795
 796         if (g_hash_table_lookup(config_table, ident) != NULL)
 797                 return NULL;
 798
 799         config = g_try_new0(struct connman_config, 1);
 800         if (config == NULL)
 801                 return NULL;
 802
 803         config->ident = g_strdup(ident);
 804
 805         config->service_table = g_hash_table_new_full(g_str_hash, g_str_equal,
 806                                                 NULL, unregister_service);
 807
 808         g_hash_table_insert(config_table, config->ident, config);
 809
 810         connman_info("Adding configuration %s", config->ident);
 811
 812         return config;
 813 }
 814
 815 static connman_bool_t validate_ident(const char *ident)
 816 {
 817         unsigned int i;
 818
 819         if (ident == NULL)
 820                 return FALSE;
 821
 822         for (i = 0; i < strlen(ident); i++)
 823                 if (g_ascii_isprint(ident[i]) == FALSE)
 824                         return FALSE;
 825
 826         return TRUE;
 827 }
 828
 829 static int read_configs(void)
 830 {
 831         GDir *dir;
 832
 833         DBG("");
 834
 835         dir = g_dir_open(STORAGEDIR, 0, NULL);
 836         if (dir != NULL) {
 837                 const gchar *file;
 838
 839                 while ((file = g_dir_read_name(dir)) != NULL) {
 840                         GString *str;
 841                         gchar *ident;
 842
 843                         if (g_str_has_suffix(file, ".config") == FALSE)
 844                                 continue;
 845
 846                         ident = g_strrstr(file, ".config");
 847                         if (ident == NULL)
 848                                 continue;
 849
 850                         str = g_string_new_len(file, ident - file);
 851                         if (str == NULL)
 852                                 continue;
 853
 854                         ident = g_string_free(str, FALSE);
 855
 856                         if (validate_ident(ident) == TRUE) {
 857                                 struct connman_config *config;
 858
 859                                 config = create_config(ident);
 860                                 if (config != NULL)
 861                                         load_config(config);
 862                         } else {
 863                                 connman_error("Invalid config ident %s", ident);
 864                         }
 865                         g_free(ident);
 866                 }
 867
 868                 g_dir_close(dir);
 869         }
 870
 871         return 0;
 872 }
 873
 874 static void config_notify_handler(struct inotify_event *event,
 875                                         const char *ident)
 876 {
 877         char *ext;
 878
 879         if (ident == NULL)
 880                 return;
 881
 882         if (g_str_has_suffix(ident, ".config") == FALSE)
 883                 return;
 884
 885         ext = g_strrstr(ident, ".config");
 886         if (ext == NULL)
 887                 return;
 888
 889         *ext = '\0';
 890
 891         if (validate_ident(ident) == FALSE) {
 892                 connman_error("Invalid config ident %s", ident);
 893                 return;
 894         }
 895
 896         if (event->mask & IN_CREATE)
 897                 create_config(ident);
 898
 899         if (event->mask & IN_MODIFY) {
 900                 struct connman_config *config;
 901
 902                 config = g_hash_table_lookup(config_table, ident);
 903                 if (config != NULL) {
 904                         int ret;
 905
 906                         g_hash_table_remove_all(config->service_table);
 907                         load_config(config);
 908                         ret = __connman_service_provision_changed(ident);
 909                         if (ret > 0) {
 910                                 /*
 911                                  * Re-scan the config file for any
 912                                  * changes
 913                                  */
 914                                 g_hash_table_remove_all(config->service_table);
 915                                 load_config(config);
 916                                 __connman_service_provision_changed(ident);
 917                         }
 918                 }
 919         }
 920
 921         if (event->mask & IN_DELETE)
 922                 g_hash_table_remove(config_table, ident);
 923 }
 924
 925 int __connman_config_init(void)
 926 {
 927         DBG("");
 928
 929         config_table = g_hash_table_new_full(g_str_hash, g_str_equal,
 930                                                 NULL, unregister_config);
 931
 932         connman_inotify_register(STORAGEDIR, config_notify_handler);
 933
 934         return read_configs();
 935 }
 936
 937 void __connman_config_cleanup(void)
 938 {
 939         DBG("");
 940
 941         cleanup = TRUE;
 942
 943         connman_inotify_unregister(STORAGEDIR, config_notify_handler);
 944
 945         g_hash_table_destroy(config_table);
 946         config_table = NULL;
 947
 948         cleanup = FALSE;
 949 }
 950
 951 static char *config_pem_fsid(const char *pem_file)
 952 {
 953         struct statfs buf;
 954         unsigned *fsid = (unsigned *) &buf.f_fsid;
 955         unsigned long long fsid64;
 956
 957         if (pem_file == NULL)
 958                 return NULL;
 959
 960         if (statfs(pem_file, &buf) < 0) {
 961                 connman_error("statfs error %s for %s",
 962                                                 strerror(errno), pem_file);
 963                 return NULL;
 964         }
 965
 966         fsid64 = ((unsigned long long) fsid[0] << 32) | fsid[1];
 967
 968         return g_strdup_printf("%llx", fsid64);
 969 }
 970
 971 static void provision_service_wifi(gpointer key,
 972                                 struct connman_config_service *config,
 973                                 struct connman_service *service,
 974                                 struct connman_network *network,
 975                                 const void *ssid, unsigned int ssid_len)
 976 {
 977         if (config->eap != NULL)
 978                 __connman_service_set_string(service, "EAP", config->eap);
 979
 980         if (config->identity != NULL)
 981                 __connman_service_set_string(service, "Identity",
 982                                                         config->identity);
 983
 984         if (config->ca_cert_file != NULL)
 985                 __connman_service_set_string(service, "CACertFile",
 986                                                         config->ca_cert_file);
 987
 988         if (config->client_cert_file != NULL)
 989                 __connman_service_set_string(service, "ClientCertFile",
 990                                                 config->client_cert_file);
 991
 992         if (config->private_key_file != NULL)
 993                 __connman_service_set_string(service, "PrivateKeyFile",
 994                                                 config->private_key_file);
 995
 996         if (g_strcmp0(config->private_key_passphrase_type, "fsid") == 0 &&
 997                                         config->private_key_file != NULL) {
 998                 char *fsid;
 999
1000                 fsid = config_pem_fsid(config->private_key_file);
1001                 if (fsid == NULL)
1002                         return;
1003
1004                 g_free(config->private_key_passphrase);
1005                 config->private_key_passphrase = fsid;
1006         }
1007
1008         if (config->private_key_passphrase != NULL) {
1009                 __connman_service_set_string(service, "PrivateKeyPassphrase",
1010                                                 config->private_key_passphrase);
1011                 /*
1012                  * TODO: Support for PEAP with both identity and key passwd.
1013                  * In that case, we should check if both of them are found
1014                  * from the config file. If not, we should not set the
1015                  * service passphrase in order for the UI to request for an
1016                  * additional passphrase.
1017                  */
1018         }
1019
1020         if (config->phase2 != NULL)
1021                 __connman_service_set_string(service, "Phase2", config->phase2);
1022
1023         if (config->passphrase != NULL)
1024                 __connman_service_set_string(service, "Passphrase", config->passphrase);
1025
1026         if (config->hidden == TRUE)
1027                 __connman_service_set_hidden(service);
1028 }
1029
1030 struct connect_virtual {
1031         struct connman_service *service;
1032         const char *vfile;
1033 };
1034
1035 static gboolean remove_virtual_config(gpointer user_data)
1036 {
1037         struct connect_virtual *virtual = user_data;
1038
1039         __connman_service_connect(virtual->service);
1040         g_hash_table_remove(config_table, virtual->vfile);
1041
1042         g_free(virtual);
1043
1044         return FALSE;
1045 }
1046
1047 static void provision_service(gpointer key, gpointer value,
1048                                                         gpointer user_data)
1049 {
1050         struct connman_service *service = user_data;
1051         struct connman_config_service *config = value;
1052         struct connman_network *network;
1053         const void *service_id;
1054         enum connman_service_type type;
1055         const void *ssid;
1056         unsigned int ssid_len;
1057
1058         type = connman_service_get_type(service);
1059         if (type == CONNMAN_SERVICE_TYPE_WIFI &&
1060                                 g_strcmp0(config->type, "wifi") != 0)
1061                 return;
1062
1063         if (type == CONNMAN_SERVICE_TYPE_ETHERNET &&
1064                                 g_strcmp0(config->type, "ethernet") != 0)
1065                 return;
1066
1067         DBG("service %p ident %s", service,
1068                                         __connman_service_get_ident(service));
1069
1070         network = __connman_service_get_network(service);
1071         if (network == NULL) {
1072                 connman_error("Service has no network set");
1073                 return;
1074         }
1075
1076         DBG("network %p ident %s", network,
1077                                 connman_network_get_identifier(network));
1078
1079         if (config->mac != NULL) {
1080                 struct connman_device *device;
1081                 const char *device_addr;
1082
1083                 device = connman_network_get_device(network);
1084                 if (device == NULL) {
1085                         connman_error("Network device is missing");
1086                         return;
1087                 }
1088
1089                 device_addr = connman_device_get_string(device, "Address");
1090
1091                 DBG("wants %s has %s", config->mac, device_addr);
1092
1093                 if (g_ascii_strcasecmp(device_addr, config->mac) != 0)
1094                         return;
1095         }
1096
1097         if (g_strcmp0(config->type, "wifi") == 0 &&
1098                                 type == CONNMAN_SERVICE_TYPE_WIFI) {
1099                 ssid = connman_network_get_blob(network, "WiFi.SSID",
1100                                                 &ssid_len);
1101                 if (ssid == NULL) {
1102                         connman_error("Network SSID not set");
1103                         return;
1104                 }
1105
1106                 if (config->ssid == NULL || ssid_len != config->ssid_len)
1107                         return;
1108
1109                 if (memcmp(config->ssid, ssid, ssid_len) != 0)
1110                         return;
1111         }
1112
1113         if (config->ipv6_address != NULL) {
1114                 struct connman_ipaddress *address;
1115
1116                 if (config->ipv6_prefix_length == 0 ||
1117                                         config->ipv6_gateway == NULL) {
1118                         DBG("IPv6 prefix or gateway missing");
1119                         return;
1120                 }
1121
1122                 address = connman_ipaddress_alloc(AF_INET6);
1123                 if (address == NULL)
1124                         return;
1125
1126                 connman_ipaddress_set_ipv6(address, config->ipv6_address,
1127                                         config->ipv6_prefix_length,
1128                                         config->ipv6_gateway);
1129
1130                 connman_network_set_ipv6_method(network,
1131                                                 CONNMAN_IPCONFIG_METHOD_FIXED);
1132
1133                 if (connman_network_set_ipaddress(network, address) < 0)
1134                         DBG("Unable to set IPv6 address to network %p",
1135                                                                 network);
1136
1137                 connman_ipaddress_free(address);
1138         }
1139
1140         if (config->ipv6_privacy != NULL) {
1141                 struct connman_ipconfig *ipconfig;
1142
1143                 ipconfig = __connman_service_get_ip6config(service);
1144                 if (ipconfig != NULL)
1145                         __connman_ipconfig_ipv6_set_privacy(ipconfig,
1146                                                         config->ipv6_privacy);
1147         }
1148
1149         if (config->ipv4_address != NULL) {
1150                 struct connman_ipaddress *address;
1151
1152                 if (config->ipv4_netmask == 0 ||
1153                                         config->ipv4_gateway == NULL) {
1154                         DBG("IPv4 netmask or gateway missing");
1155                         return;
1156                 }
1157
1158                 address = connman_ipaddress_alloc(AF_INET);
1159                 if (address == NULL)
1160                         return;
1161
1162                 connman_ipaddress_set_ipv4(address, config->ipv4_address,
1163                                         config->ipv4_netmask,
1164                                         config->ipv4_gateway);
1165
1166                 connman_network_set_ipv4_method(network,
1167                                                 CONNMAN_IPCONFIG_METHOD_FIXED);
1168
1169                 if (connman_network_set_ipaddress(network, address) < 0)
1170                         DBG("Unable to set IPv4 address to network %p",
1171                                                                 network);
1172
1173                 connman_ipaddress_free(address);
1174         }
1175
1176         __connman_service_disconnect(service);
1177
1178         service_id = __connman_service_get_ident(service);
1179         config->service_identifiers =
1180                 g_slist_prepend(config->service_identifiers,
1181                                 g_strdup(service_id));
1182
1183         if (config->virtual == FALSE)
1184                 __connman_service_set_immutable(service, TRUE);
1185
1186         __connman_service_set_favorite_delayed(service, TRUE, TRUE);
1187
1188         __connman_service_set_config(service, config->config_ident,
1189                                                 config->config_entry);
1190
1191         if (config->domain_name != NULL)
1192                 __connman_service_set_domainname(service, config->domain_name);
1193
1194         if (config->nameservers != NULL) {
1195                 int i;
1196
1197                 __connman_service_nameserver_clear(service);
1198
1199                 for (i = 0; config->nameservers[i] != NULL; i++) {
1200                         __connman_service_nameserver_append(service,
1201                                                 config->nameservers[i], FALSE);
1202                 }
1203         }
1204
1205         if (config->search_domains != NULL)
1206                 __connman_service_set_search_domains(service,
1207                                                 config->search_domains);
1208
1209         if (config->timeservers != NULL)
1210                 __connman_service_set_timeservers(service,
1211                                                 config->timeservers);
1212
1213         if (g_strcmp0(config->type, "wifi") == 0 &&
1214                                 type == CONNMAN_SERVICE_TYPE_WIFI) {
1215                 provision_service_wifi(key, config, service, network,
1216                                                         ssid, ssid_len);
1217         } else
1218                 __connman_service_connect(service);
1219
1220         __connman_service_mark_dirty();
1221
1222         __connman_service_save(service);
1223
1224         if (config->virtual == TRUE) {
1225                 struct connect_virtual *virtual;
1226
1227                 virtual = g_malloc0(sizeof(struct connect_virtual));
1228                 virtual->service = service;
1229                 virtual->vfile = config->virtual_file;
1230
1231                 g_timeout_add(0, remove_virtual_config, virtual);
1232         } else
1233                 __connman_service_auto_connect();
1234 }
1235
1236 int __connman_config_provision_service(struct connman_service *service)
1237 {
1238         enum connman_service_type type;
1239         GHashTableIter iter;
1240         gpointer value, key;
1241
1242         /* For now only WiFi and Ethernet services are supported */
1243         type = connman_service_get_type(service);
1244
1245         DBG("service %p type %d", service, type);
1246
1247         if (type != CONNMAN_SERVICE_TYPE_WIFI &&
1248                                         type != CONNMAN_SERVICE_TYPE_ETHERNET)
1249                 return -ENOSYS;
1250
1251         g_hash_table_iter_init(&iter, config_table);
1252
1253         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
1254                 struct connman_config *config = value;
1255
1256                 g_hash_table_foreach(config->service_table,
1257                                                 provision_service, service);
1258         }
1259
1260         return 0;
1261 }
1262
1263 int __connman_config_provision_service_ident(struct connman_service *service,
1264                         const char *ident, const char *file, const char *entry)
1265 {
1266         enum connman_service_type type;
1267         struct connman_config *config;
1268         int ret = 0;
1269
1270         /* For now only WiFi and Ethernet services are supported */
1271         type = connman_service_get_type(service);
1272
1273         DBG("service %p type %d", service, type);
1274
1275         if (type != CONNMAN_SERVICE_TYPE_WIFI &&
1276                                         type != CONNMAN_SERVICE_TYPE_ETHERNET)
1277                 return -ENOSYS;
1278
1279         config = g_hash_table_lookup(config_table, ident);
1280         if (config != NULL) {
1281                 GHashTableIter iter;
1282                 gpointer value, key;
1283                 gboolean found = FALSE;
1284
1285                 g_hash_table_iter_init(&iter, config->service_table);
1286
1287                 /*
1288                  * Check if we need to remove individual service if it
1289                  * is missing from config file.
1290                  */
1291                 if (file != NULL && entry != NULL) {
1292                         while (g_hash_table_iter_next(&iter, &key,
1293                                                         &value) == TRUE) {
1294                                 struct connman_config_service *config_service;
1295
1296                                 config_service = value;
1297
1298                                 if (g_strcmp0(config_service->config_ident,
1299                                                                 file) != 0)
1300                                         continue;
1301
1302                                 if (g_strcmp0(config_service->config_entry,
1303                                                                 entry) != 0)
1304                                         continue;
1305
1306                                 found = TRUE;
1307                                 break;
1308                         }
1309
1310                         DBG("found %d ident %s file %s entry %s", found, ident,
1311                                                                 file, entry);
1312
1313                         if (found == FALSE) {
1314                                 /*
1315                                  * The entry+8 will skip "service_" prefix
1316                                  */
1317                                 g_hash_table_remove(config->service_table,
1318                                                 entry + 8);
1319                                 ret = 1;
1320                         }
1321                 }
1322
1323                 g_hash_table_foreach(config->service_table,
1324                                                 provision_service, service);
1325         }
1326
1327         return ret;
1328 }
1329
1330 static void generate_random_string(char *str, int length)
1331 {
1332         uint8_t val;
1333         int i;
1334
1335         memset(str, '\0', length);
1336
1337         for (i = 0; i < length-1; i++) {
1338                 do {
1339                         val = (uint8_t)(random() % 122);
1340                         if (val < 48)
1341                                 val += 48;
1342                 } while((val > 57 && val < 65) || (val > 90 && val < 97));
1343
1344                 str[i] = val;
1345         }
1346 }
1347
1348 int connman_config_provision_mutable_service(GKeyFile *keyfile)
1349 {
1350         struct connman_config_service *service_config;
1351         struct connman_config *config;
1352         char *vfile, *group;
1353         char rstr[11];
1354
1355         DBG("");
1356
1357         generate_random_string(rstr, 11);
1358
1359         vfile = g_strdup_printf("service_mutable_%s.config", rstr);
1360
1361         config = create_config(vfile);
1362         if (config == NULL)
1363                 return -ENOMEM;
1364
1365         if (load_service_from_keyfile(keyfile, config) == FALSE)
1366                 goto error;
1367
1368         group = g_key_file_get_start_group(keyfile);
1369
1370         service_config = g_hash_table_lookup(config->service_table, group+8);
1371         if (service_config == NULL)
1372                 goto error;
1373
1374         /* Specific to non file based config: */
1375         g_free(service_config->config_ident);
1376         service_config->config_ident = NULL;
1377         g_free(service_config->config_entry);
1378         service_config->config_entry = NULL;
1379
1380         service_config->virtual = TRUE;
1381         service_config->virtual_file = vfile;
1382
1383         __connman_service_provision_changed(vfile);
1384
1385         if (g_strcmp0(service_config->type, "wifi") == 0)
1386                 __connman_device_request_scan(CONNMAN_SERVICE_TYPE_WIFI);
1387
1388         return 0;
1389
1390 error:
1391         DBG("Could not proceed");
1392         g_hash_table_remove(config_table, vfile);
1393         g_free(vfile);
1394
1395         return -EINVAL;
1396 }
1397
1398 struct connman_config_entry **connman_config_get_entries(const char *type)
1399 {
1400         GHashTableIter iter_file, iter_config;
1401         gpointer value, key;
1402         struct connman_config_entry **entries = NULL;
1403         int i = 0, count;
1404
1405         g_hash_table_iter_init(&iter_file, config_table);
1406         while (g_hash_table_iter_next(&iter_file, &key, &value) == TRUE) {
1407                 struct connman_config *config_file = value;
1408
1409                 count = g_hash_table_size(config_file->service_table);
1410
1411                 entries = g_try_realloc(entries, (i + count + 1) *
1412                                         sizeof(struct connman_config_entry *));
1413                 if (entries == NULL)
1414                         return NULL;
1415
1416                 g_hash_table_iter_init(&iter_config,
1417                                                 config_file->service_table);
1418                 while (g_hash_table_iter_next(&iter_config, &key,
1419                                                         &value) == TRUE) {
1420                         struct connman_config_service *config = value;
1421
1422                         if (type != NULL &&
1423                                         g_strcmp0(config->type, type) != 0)
1424                                 continue;
1425
1426                         entries[i] = g_try_new0(struct connman_config_entry,
1427                                                 1);
1428                         if (entries[i] == NULL)
1429                                 goto cleanup;
1430
1431                         entries[i]->ident = g_strdup(config->ident);
1432                         entries[i]->name = g_strdup(config->name);
1433                         entries[i]->ssid = g_try_malloc0(config->ssid_len + 1);
1434                         if (entries[i]->ssid == NULL)
1435                                 goto cleanup;
1436
1437                         memcpy(entries[i]->ssid, config->ssid,
1438                                                         config->ssid_len);
1439                         entries[i]->ssid_len = config->ssid_len;
1440                         entries[i]->hidden = config->hidden;
1441
1442                         i++;
1443                 }
1444         }
1445
1446         if (entries != NULL) {
1447                 entries = g_try_realloc(entries, (i + 1) *
1448                                         sizeof(struct connman_config_entry *));
1449                 if (entries == NULL)
1450                         return NULL;
1451
1452                 entries[i] = NULL;
1453
1454                 DBG("%d provisioned AP found", i);
1455         }
1456
1457         return entries;
1458
1459 cleanup:
1460         connman_config_free_entries(entries);
1461         return NULL;
1462 }
1463
1464 void connman_config_free_entries(struct connman_config_entry **entries)
1465 {
1466         int i;
1467
1468         if (entries == NULL)
1469                 return;
1470
1471         for (i = 0; entries[i]; i++) {
1472                 g_free(entries[i]->ident);
1473                 g_free(entries[i]->name);
1474                 g_free(entries[i]->ssid);
1475                 g_free(entries[i]);
1476         }
1477
1478         g_free(entries);
1479         return;
1480 }