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