src/ipconfig.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  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 <net/if.h>
  27 #include <net/if_arp.h>
  28
  29 #ifndef IFF_LOWER_UP
  30 #define IFF_LOWER_UP    0x10000
  31 #endif
  32
  33 #include <gdbus.h>
  34
  35 #include "connman.h"
  36
  37 struct connman_ipconfig {
  38         gint refcount;
  39         int index;
  40
  41         struct connman_ipconfig *origin;
  42
  43         const struct connman_ipconfig_ops *ops;
  44         void *ops_data;
  45
  46         enum connman_ipconfig_method method;
  47         struct connman_ipaddress *address;
  48         struct connman_ipaddress *system;
  49
  50         char *eth;
  51         uint16_t mtu;
  52 };
  53
  54 struct connman_ipdevice {
  55         int index;
  56         char *ifname;
  57         unsigned short type;
  58         unsigned int flags;
  59
  60         GSList *address_list;
  61         char *gateway;
  62
  63         struct connman_ipconfig *config;
  64
  65         struct connman_ipconfig_driver *driver;
  66         struct connman_ipconfig *driver_config;
  67 };
  68
  69 static GHashTable *ipdevice_hash = NULL;
  70 static GList *ipconfig_list = NULL;
  71
  72 struct connman_ipaddress *connman_ipaddress_alloc(void)
  73 {
  74         struct connman_ipaddress *ipaddress;
  75
  76         ipaddress = g_try_new0(struct connman_ipaddress, 1);
  77         if (ipaddress == NULL)
  78                 return NULL;
  79
  80         return ipaddress;
  81 }
  82
  83 void connman_ipaddress_free(struct connman_ipaddress *ipaddress)
  84 {
  85         if (ipaddress == NULL)
  86                 return;
  87
  88         g_free(ipaddress->broadcast);
  89         g_free(ipaddress->peer);
  90         g_free(ipaddress->local);
  91         g_free(ipaddress);
  92 }
  93
  94 static unsigned char netmask2prefixlen(const char *netmask)
  95 {
  96         unsigned char bits = 0;
  97         in_addr_t mask = inet_network(netmask);
  98         in_addr_t host = ~mask;
  99
 100         /* a valid netmask must be 2^n - 1 */
 101         if ((host & (host + 1)) != 0)
 102                 return -1;
 103
 104         for (; mask; mask <<= 1)
 105                 ++bits;
 106
 107         return bits;
 108 }
 109
 110 void connman_ipaddress_set(struct connman_ipaddress *ipaddress,
 111                                 const char *address, const char *netmask)
 112 {
 113         if (ipaddress == NULL)
 114                 return;
 115
 116         if (netmask != NULL)
 117                 ipaddress->prefixlen = netmask2prefixlen(netmask);
 118         else
 119                 ipaddress->prefixlen = 32;
 120
 121         g_free(ipaddress->local);
 122         ipaddress->local = g_strdup(address);
 123 }
 124
 125 void connman_ipaddress_clear(struct connman_ipaddress *ipaddress)
 126 {
 127         if (ipaddress == NULL)
 128                 return;
 129
 130         ipaddress->prefixlen = 0;
 131
 132         g_free(ipaddress->local);
 133         ipaddress->local = NULL;
 134
 135         g_free(ipaddress->peer);
 136         ipaddress->peer = NULL;
 137
 138         g_free(ipaddress->broadcast);
 139         ipaddress->broadcast = NULL;
 140 }
 141
 142 void connman_ipaddress_copy(struct connman_ipaddress *ipaddress,
 143                                         struct connman_ipaddress *source)
 144 {
 145         if (ipaddress == NULL || source == NULL)
 146                 return;
 147
 148         ipaddress->prefixlen = source->prefixlen;
 149
 150         g_free(ipaddress->local);
 151         ipaddress->local = g_strdup(source->local);
 152
 153         g_free(ipaddress->peer);
 154         ipaddress->peer = g_strdup(source->peer);
 155
 156         g_free(ipaddress->broadcast);
 157         ipaddress->broadcast = g_strdup(source->broadcast);
 158 }
 159
 160 static void free_address_list(struct connman_ipdevice *ipdevice)
 161 {
 162         GSList *list;
 163
 164         for (list = ipdevice->address_list; list; list = list->next) {
 165                 struct connman_ipaddress *ipaddress = list->data;
 166
 167                 connman_ipaddress_free(ipaddress);
 168                 list->data = NULL;
 169         }
 170
 171         g_slist_free(ipdevice->address_list);
 172         ipdevice->address_list = NULL;
 173 }
 174
 175 static struct connman_ipaddress *find_ipaddress(struct connman_ipdevice *ipdevice,
 176                                 unsigned char prefixlen, const char *local)
 177 {
 178         GSList *list;
 179
 180         for (list = ipdevice->address_list; list; list = list->next) {
 181                 struct connman_ipaddress *ipaddress = list->data;
 182
 183                 if (g_strcmp0(ipaddress->local, local) == 0 &&
 184                                         ipaddress->prefixlen == prefixlen)
 185                         return ipaddress;
 186         }
 187
 188         return NULL;
 189 }
 190
 191 static const char *type2str(unsigned short type)
 192 {
 193         switch (type) {
 194         case ARPHRD_ETHER:
 195                 return "ETHER";
 196         case ARPHRD_LOOPBACK:
 197                 return "LOOPBACK";
 198         case ARPHRD_PPP:
 199                 return "PPP";
 200         case ARPHRD_NONE:
 201                 return "NONE";
 202         case ARPHRD_VOID:
 203                 return "VOID";
 204         }
 205
 206         return "";
 207 }
 208
 209 static const char *scope2str(unsigned char scope)
 210 {
 211         switch (scope) {
 212         case 0:
 213                 return "UNIVERSE";
 214         case 253:
 215                 return "LINK";
 216         }
 217
 218         return "";
 219 }
 220
 221 static void free_ipdevice(gpointer data)
 222 {
 223         struct connman_ipdevice *ipdevice = data;
 224
 225         connman_info("%s {remove} index %d", ipdevice->ifname,
 226                                                         ipdevice->index);
 227
 228         if (ipdevice->config != NULL)
 229                 connman_ipconfig_unref(ipdevice->config);
 230
 231         free_address_list(ipdevice);
 232         g_free(ipdevice->gateway);
 233
 234         g_free(ipdevice->ifname);
 235         g_free(ipdevice);
 236 }
 237
 238 static GSList *driver_list = NULL;
 239
 240 static gint compare_priority(gconstpointer a, gconstpointer b)
 241 {
 242         const struct connman_ipconfig_driver *driver1 = a;
 243         const struct connman_ipconfig_driver *driver2 = b;
 244
 245         return driver2->priority - driver1->priority;
 246 }
 247
 248 /**
 249  * connman_ipconfig_driver_register:
 250  * @driver: IP configuration driver
 251  *
 252  * Register a new IP configuration driver
 253  *
 254  * Returns: %0 on success
 255  */
 256 int connman_ipconfig_driver_register(struct connman_ipconfig_driver *driver)
 257 {
 258         DBG("driver %p name %s", driver, driver->name);
 259
 260         driver_list = g_slist_insert_sorted(driver_list, driver,
 261                                                         compare_priority);
 262
 263         return 0;
 264 }
 265
 266 /**
 267  * connman_ipconfig_driver_unregister:
 268  * @driver: IP configuration driver
 269  *
 270  * Remove a previously registered IP configuration driver.
 271  */
 272 void connman_ipconfig_driver_unregister(struct connman_ipconfig_driver *driver)
 273 {
 274         DBG("driver %p name %s", driver, driver->name);
 275
 276         driver_list = g_slist_remove(driver_list, driver);
 277 }
 278
 279 static void __connman_ipconfig_lower_up(struct connman_ipdevice *ipdevice)
 280 {
 281         GSList *list;
 282
 283         DBG("ipconfig %p", ipdevice->config);
 284
 285         if (ipdevice->config == NULL)
 286                 return;
 287
 288         switch (ipdevice->config->method) {
 289         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
 290         case CONNMAN_IPCONFIG_METHOD_OFF:
 291         case CONNMAN_IPCONFIG_METHOD_FIXED:
 292         case CONNMAN_IPCONFIG_METHOD_MANUAL:
 293                 return;
 294         case CONNMAN_IPCONFIG_METHOD_DHCP:
 295                 break;
 296         }
 297
 298         if (ipdevice->driver != NULL)
 299                 return;
 300
 301         ipdevice->driver_config = connman_ipconfig_clone(ipdevice->config);
 302         if (ipdevice->driver_config == NULL)
 303                 return;
 304
 305         for (list = driver_list; list; list = list->next) {
 306                 struct connman_ipconfig_driver *driver = list->data;
 307
 308                 if (driver->request(ipdevice->driver_config) == 0) {
 309                         ipdevice->driver = driver;
 310                         break;
 311                 }
 312         }
 313
 314         if (ipdevice->driver == NULL) {
 315                 connman_ipconfig_unref(ipdevice->driver_config);
 316                 ipdevice->driver_config = NULL;
 317         }
 318 }
 319
 320 static void __connman_ipconfig_lower_down(struct connman_ipdevice *ipdevice)
 321 {
 322         DBG("ipconfig %p", ipdevice->config);
 323
 324         if (ipdevice->config == NULL)
 325                 return;
 326
 327         if (ipdevice->driver == NULL)
 328                 return;
 329
 330         ipdevice->driver->release(ipdevice->driver_config);
 331
 332         ipdevice->driver = NULL;
 333
 334         connman_ipconfig_unref(ipdevice->driver_config);
 335         ipdevice->driver_config = NULL;
 336
 337         connman_inet_clear_address(ipdevice->index);
 338 }
 339
 340 void __connman_ipconfig_newlink(int index, unsigned short type,
 341                                 unsigned int flags, const char *address,
 342                                                         unsigned short mtu)
 343 {
 344         struct connman_ipdevice *ipdevice;
 345         GList *list;
 346         GString *str;
 347         gboolean up = FALSE, down = FALSE;
 348         gboolean lower_up = FALSE, lower_down = FALSE;
 349         char *ifname;
 350
 351         DBG("index %d", index);
 352
 353         if (type == ARPHRD_LOOPBACK)
 354                 return;
 355
 356         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 357         if (ipdevice != NULL)
 358                 goto update;
 359
 360         ifname = connman_inet_ifname(index);
 361
 362         if (__connman_element_device_isfiltered(ifname) == TRUE) {
 363                 connman_info("Ignoring interface %s (filtered)", ifname);
 364                 g_free(ifname);
 365                 return;
 366         }
 367
 368         ipdevice = g_try_new0(struct connman_ipdevice, 1);
 369         if (ipdevice == NULL) {
 370                 g_free(ifname);
 371                 return;
 372         }
 373
 374         ipdevice->index = index;
 375         ipdevice->ifname = ifname;
 376         ipdevice->type = type;
 377
 378         g_hash_table_insert(ipdevice_hash, GINT_TO_POINTER(index), ipdevice);
 379
 380         connman_info("%s {create} index %d type %d <%s>", ipdevice->ifname,
 381                                                 index, type, type2str(type));
 382
 383 update:
 384         if (ipdevice->config != NULL) {
 385                 g_free(ipdevice->config->eth);
 386                 ipdevice->config->eth = g_strdup(address);
 387                 ipdevice->config->mtu = mtu;
 388         }
 389
 390         if (flags == ipdevice->flags)
 391                 return;
 392
 393         if ((ipdevice->flags & IFF_UP) != (flags & IFF_UP)) {
 394                 if (flags & IFF_UP)
 395                         up = TRUE;
 396                 else
 397                         down = TRUE;
 398         }
 399
 400         if ((ipdevice->flags & (IFF_RUNNING | IFF_LOWER_UP)) !=
 401                                 (flags & (IFF_RUNNING | IFF_LOWER_UP))) {
 402                 if ((flags & (IFF_RUNNING | IFF_LOWER_UP)) ==
 403                                         (IFF_RUNNING | IFF_LOWER_UP))
 404                         lower_up = TRUE;
 405                 else if ((flags & (IFF_RUNNING | IFF_LOWER_UP)) == 0)
 406                         lower_down = TRUE;
 407         }
 408
 409         ipdevice->flags = flags;
 410
 411         str = g_string_new(NULL);
 412         if (str == NULL)
 413                 return;
 414
 415         if (flags & IFF_UP)
 416                 g_string_append(str, "UP");
 417         else
 418                 g_string_append(str, "DOWN");
 419
 420         if (flags & IFF_RUNNING)
 421                 g_string_append(str, ",RUNNING");
 422
 423         if (flags & IFF_LOWER_UP)
 424                 g_string_append(str, ",LOWER_UP");
 425
 426         connman_info("%s {update} flags %u <%s>", ipdevice->ifname,
 427                                                         flags, str->str);
 428
 429         g_string_free(str, TRUE);
 430
 431         for (list = g_list_first(ipconfig_list); list;
 432                                                 list = g_list_next(list)) {
 433                 struct connman_ipconfig *ipconfig = list->data;
 434
 435                 if (index != ipconfig->index)
 436                         continue;
 437
 438                 if (ipconfig->ops == NULL)
 439                         continue;
 440
 441                 if (up == TRUE && ipconfig->ops->up)
 442                         ipconfig->ops->up(ipconfig);
 443                 if (lower_up == TRUE && ipconfig->ops->lower_up)
 444                         ipconfig->ops->lower_up(ipconfig);
 445
 446                 if (lower_down == TRUE && ipconfig->ops->lower_down)
 447                         ipconfig->ops->lower_down(ipconfig);
 448                 if (down == TRUE && ipconfig->ops->down)
 449                         ipconfig->ops->down(ipconfig);
 450         }
 451
 452         if (lower_up)
 453                 __connman_ipconfig_lower_up(ipdevice);
 454         if (lower_down)
 455                 __connman_ipconfig_lower_down(ipdevice);
 456 }
 457
 458 void __connman_ipconfig_dellink(int index)
 459 {
 460         struct connman_ipdevice *ipdevice;
 461         GList *list;
 462
 463         DBG("index %d", index);
 464
 465         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 466         if (ipdevice == NULL)
 467                 return;
 468
 469         for (list = g_list_first(ipconfig_list); list;
 470                                                 list = g_list_next(list)) {
 471                 struct connman_ipconfig *ipconfig = list->data;
 472
 473                 if (index != ipconfig->index)
 474                         continue;
 475
 476                 ipconfig->index = -1;
 477
 478                 if (ipconfig->ops == NULL)
 479                         continue;
 480
 481                 if (ipconfig->ops->lower_down)
 482                         ipconfig->ops->lower_down(ipconfig);
 483                 if (ipconfig->ops->down)
 484                         ipconfig->ops->down(ipconfig);
 485         }
 486
 487         __connman_ipconfig_lower_down(ipdevice);
 488
 489         g_hash_table_remove(ipdevice_hash, GINT_TO_POINTER(index));
 490 }
 491
 492 void __connman_ipconfig_newaddr(int index, const char *label,
 493                                 unsigned char prefixlen, const char *address)
 494 {
 495         struct connman_ipdevice *ipdevice;
 496         struct connman_ipaddress *ipaddress;
 497         GList *list;
 498
 499         DBG("index %d", index);
 500
 501         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 502         if (ipdevice == NULL)
 503                 return;
 504
 505         ipaddress = connman_ipaddress_alloc();
 506         if (ipaddress == NULL)
 507                 return;
 508
 509         ipaddress->prefixlen = prefixlen;
 510         ipaddress->local = g_strdup(address);
 511
 512         ipdevice->address_list = g_slist_append(ipdevice->address_list,
 513                                                                 ipaddress);
 514
 515         connman_info("%s {add} address %s/%u label %s", ipdevice->ifname,
 516                                                 address, prefixlen, label);
 517
 518         if (ipdevice->config != NULL)
 519                 connman_ipaddress_copy(ipdevice->config->system, ipaddress);
 520
 521         if ((ipdevice->flags & (IFF_RUNNING | IFF_LOWER_UP)) != (IFF_RUNNING | IFF_LOWER_UP))
 522                 return;
 523
 524         if (g_slist_length(ipdevice->address_list) > 1)
 525                 return;
 526
 527         for (list = g_list_first(ipconfig_list); list;
 528                                                 list = g_list_next(list)) {
 529                 struct connman_ipconfig *ipconfig = list->data;
 530
 531                 if (index != ipconfig->index)
 532                         continue;
 533
 534                 if (ipconfig->ops == NULL)
 535                         continue;
 536
 537                 if (ipconfig->ops->ip_bound)
 538                         ipconfig->ops->ip_bound(ipconfig);
 539         }
 540 }
 541
 542 void __connman_ipconfig_deladdr(int index, const char *label,
 543                                 unsigned char prefixlen, const char *address)
 544 {
 545         struct connman_ipdevice *ipdevice;
 546         struct connman_ipaddress *ipaddress;
 547         GList *list;
 548
 549         DBG("index %d", index);
 550
 551         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 552         if (ipdevice == NULL)
 553                 return;
 554
 555         ipaddress = find_ipaddress(ipdevice, prefixlen, address);
 556         if (ipaddress == NULL)
 557                 return;
 558
 559         ipdevice->address_list = g_slist_remove(ipdevice->address_list,
 560                                                                 ipaddress);
 561
 562         connman_ipaddress_free(ipaddress);
 563
 564         connman_info("%s {del} address %s/%u label %s", ipdevice->ifname,
 565                                                 address, prefixlen, label);
 566
 567         if ((ipdevice->flags & (IFF_RUNNING | IFF_LOWER_UP)) != (IFF_RUNNING | IFF_LOWER_UP))
 568                 return;
 569
 570         if (g_slist_length(ipdevice->address_list) > 0)
 571                 return;
 572
 573         for (list = g_list_first(ipconfig_list); list;
 574                                                 list = g_list_next(list)) {
 575                 struct connman_ipconfig *ipconfig = list->data;
 576
 577                 if (index != ipconfig->index)
 578                         continue;
 579
 580                 if (ipconfig->ops == NULL)
 581                         continue;
 582
 583                 if (ipconfig->ops->ip_release)
 584                         ipconfig->ops->ip_release(ipconfig);
 585         }
 586 }
 587
 588 void __connman_ipconfig_newroute(int index, unsigned char scope,
 589                                         const char *dst, const char *gateway)
 590 {
 591         struct connman_ipdevice *ipdevice;
 592
 593         DBG("index %d", index);
 594
 595         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 596         if (ipdevice == NULL)
 597                 return;
 598
 599         if (scope == 0 && g_strcmp0(dst, "0.0.0.0") == 0) {
 600                 g_free(ipdevice->gateway);
 601                 ipdevice->gateway = g_strdup(gateway);
 602         }
 603
 604         connman_info("%s {add} route %s gw %s scope %u <%s>",
 605                                         ipdevice->ifname, dst, gateway,
 606                                                 scope, scope2str(scope));
 607 }
 608
 609 void __connman_ipconfig_delroute(int index, unsigned char scope,
 610                                         const char *dst, const char *gateway)
 611 {
 612         struct connman_ipdevice *ipdevice;
 613
 614         DBG("index %d", index);
 615
 616         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 617         if (ipdevice == NULL)
 618                 return;
 619
 620         if (scope == 0 && g_strcmp0(dst, "0.0.0.0") == 0) {
 621                 g_free(ipdevice->gateway);
 622                 ipdevice->gateway = NULL;
 623         }
 624
 625         connman_info("%s {del} route %s gw %s scope %u <%s>",
 626                                         ipdevice->ifname, dst, gateway,
 627                                                 scope, scope2str(scope));
 628 }
 629
 630 void __connman_ipconfig_foreach(void (*function) (int index, void *user_data),
 631                                                         void *user_data)
 632 {
 633         GList *list, *keys;
 634
 635         keys = g_hash_table_get_keys(ipdevice_hash);
 636         if (keys == NULL)
 637                 return;
 638
 639         for (list = g_list_first(keys); list; list = g_list_next(list)) {
 640                 int index = GPOINTER_TO_INT(list->data);
 641
 642                 function(index, user_data);
 643         }
 644
 645         g_list_free(keys);
 646 }
 647
 648 unsigned short __connman_ipconfig_get_type(int index)
 649 {
 650         struct connman_ipdevice *ipdevice;
 651
 652         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 653         if (ipdevice == NULL)
 654                 return ARPHRD_VOID;
 655
 656         return ipdevice->type;
 657 }
 658
 659 unsigned int __connman_ipconfig_get_flags(int index)
 660 {
 661         struct connman_ipdevice *ipdevice;
 662
 663         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 664         if (ipdevice == NULL)
 665                 return 0;
 666
 667         return ipdevice->flags;
 668 }
 669
 670 const char *__connman_ipconfig_get_gateway(int index)
 671 {
 672         struct connman_ipdevice *ipdevice;
 673
 674         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 675         if (ipdevice == NULL)
 676                 return NULL;
 677
 678         return ipdevice->gateway;
 679 }
 680
 681 /**
 682  * connman_ipconfig_create:
 683  *
 684  * Allocate a new ipconfig structure.
 685  *
 686  * Returns: a newly-allocated #connman_ipconfig structure
 687  */
 688 struct connman_ipconfig *connman_ipconfig_create(int index)
 689 {
 690         struct connman_ipconfig *ipconfig;
 691
 692         DBG("index %d", index);
 693
 694         ipconfig = g_try_new0(struct connman_ipconfig, 1);
 695         if (ipconfig == NULL)
 696                 return NULL;
 697
 698         ipconfig->refcount = 1;
 699
 700         ipconfig->index = index;
 701
 702         ipconfig->address = connman_ipaddress_alloc();
 703         if (ipconfig->address == NULL) {
 704                 g_free(ipconfig);
 705                 return NULL;
 706         }
 707
 708         ipconfig->system = connman_ipaddress_alloc();
 709
 710         DBG("ipconfig %p", ipconfig);
 711
 712         return ipconfig;
 713 }
 714
 715 /**
 716  * connman_ipconfig_clone:
 717  *
 718  * Clone an ipconfig structure and create new reference.
 719  *
 720  * Returns: a newly-allocated #connman_ipconfig structure
 721  */
 722 struct connman_ipconfig *connman_ipconfig_clone(struct connman_ipconfig *ipconfig)
 723 {
 724         struct connman_ipconfig *ipconfig_clone;
 725
 726         DBG("ipconfig %p", ipconfig);
 727
 728         ipconfig_clone = g_try_new0(struct connman_ipconfig, 1);
 729         if (ipconfig_clone == NULL)
 730                 return NULL;
 731
 732         ipconfig_clone->refcount = 1;
 733
 734         ipconfig_clone->origin = connman_ipconfig_ref(ipconfig);
 735
 736         ipconfig_clone->index = -1;
 737
 738         return ipconfig_clone;
 739 }
 740
 741 /**
 742  * connman_ipconfig_ref:
 743  * @ipconfig: ipconfig structure
 744  *
 745  * Increase reference counter of ipconfig
 746  */
 747 struct connman_ipconfig *connman_ipconfig_ref(struct connman_ipconfig *ipconfig)
 748 {
 749         g_atomic_int_inc(&ipconfig->refcount);
 750
 751         return ipconfig;
 752 }
 753
 754 /**
 755  * connman_ipconfig_unref:
 756  * @ipconfig: ipconfig structure
 757  *
 758  * Decrease reference counter of ipconfig
 759  */
 760 void connman_ipconfig_unref(struct connman_ipconfig *ipconfig)
 761 {
 762         if (g_atomic_int_dec_and_test(&ipconfig->refcount) == TRUE) {
 763                 __connman_ipconfig_disable(ipconfig);
 764
 765                 connman_ipconfig_set_ops(ipconfig, NULL);
 766
 767                 if (ipconfig->origin != NULL) {
 768                         connman_ipconfig_unref(ipconfig->origin);
 769                         ipconfig->origin = NULL;
 770                 }
 771
 772                 connman_ipaddress_free(ipconfig->system);
 773                 connman_ipaddress_free(ipconfig->address);
 774                 g_free(ipconfig->eth);
 775                 g_free(ipconfig);
 776         }
 777 }
 778
 779 /**
 780  * connman_ipconfig_get_data:
 781  * @ipconfig: ipconfig structure
 782  *
 783  * Get private data pointer
 784  */
 785 void *connman_ipconfig_get_data(struct connman_ipconfig *ipconfig)
 786 {
 787         return ipconfig->ops_data;
 788 }
 789
 790 /**
 791  * connman_ipconfig_set_data:
 792  * @ipconfig: ipconfig structure
 793  * @data: data pointer
 794  *
 795  * Set private data pointer
 796  */
 797 void connman_ipconfig_set_data(struct connman_ipconfig *ipconfig, void *data)
 798 {
 799         ipconfig->ops_data = data;
 800 }
 801
 802 /**
 803  * connman_ipconfig_get_index:
 804  * @ipconfig: ipconfig structure
 805  *
 806  * Get interface index
 807  */
 808 int connman_ipconfig_get_index(struct connman_ipconfig *ipconfig)
 809 {
 810         if (ipconfig->origin != NULL)
 811                 return ipconfig->origin->index;
 812
 813         return ipconfig->index;
 814 }
 815
 816 /**
 817  * connman_ipconfig_get_ifname:
 818  * @ipconfig: ipconfig structure
 819  *
 820  * Get interface name
 821  */
 822 const char *connman_ipconfig_get_ifname(struct connman_ipconfig *ipconfig)
 823 {
 824         struct connman_ipdevice *ipdevice;
 825
 826         if (ipconfig->index < 0)
 827                 return NULL;
 828
 829         ipdevice = g_hash_table_lookup(ipdevice_hash,
 830                                         GINT_TO_POINTER(ipconfig->index));
 831         if (ipdevice == NULL)
 832                 return NULL;
 833
 834         return ipdevice->ifname;
 835 }
 836
 837 /**
 838  * connman_ipconfig_set_ops:
 839  * @ipconfig: ipconfig structure
 840  * @ops: operation callbacks
 841  *
 842  * Set the operation callbacks
 843  */
 844 void connman_ipconfig_set_ops(struct connman_ipconfig *ipconfig,
 845                                 const struct connman_ipconfig_ops *ops)
 846 {
 847         ipconfig->ops = ops;
 848 }
 849
 850 /**
 851  * connman_ipconfig_set_method:
 852  * @ipconfig: ipconfig structure
 853  * @method: configuration method
 854  *
 855  * Set the configuration method
 856  */
 857 int connman_ipconfig_set_method(struct connman_ipconfig *ipconfig,
 858                                         enum connman_ipconfig_method method)
 859 {
 860         ipconfig->method = method;
 861
 862         return 0;
 863 }
 864
 865 /**
 866  * connman_ipconfig_bind:
 867  * @ipconfig: ipconfig structure
 868  * @ipaddress: ipaddress structure
 869  *
 870  * Bind IP address details to configuration
 871  */
 872 void connman_ipconfig_bind(struct connman_ipconfig *ipconfig,
 873                                         struct connman_ipaddress *ipaddress)
 874 {
 875         struct connman_ipconfig *origin;
 876
 877         origin = ipconfig->origin ? ipconfig->origin : ipconfig;
 878
 879         connman_ipaddress_copy(origin->address, ipaddress);
 880
 881         connman_inet_set_address(origin->index, origin->address);
 882 }
 883
 884 int __connman_ipconfig_enable(struct connman_ipconfig *ipconfig)
 885 {
 886         struct connman_ipdevice *ipdevice;
 887
 888         DBG("ipconfig %p", ipconfig);
 889
 890         if (ipconfig == NULL || ipconfig->index < 0)
 891                 return -ENODEV;
 892
 893         ipdevice = g_hash_table_lookup(ipdevice_hash,
 894                                         GINT_TO_POINTER(ipconfig->index));
 895         if (ipdevice == NULL)
 896                 return -ENXIO;
 897
 898         if (ipdevice->config != NULL) {
 899                 ipconfig_list = g_list_remove(ipconfig_list, ipconfig);
 900
 901                 connman_ipaddress_clear(ipdevice->config->system);
 902
 903                 connman_ipconfig_unref(ipdevice->config);
 904         }
 905
 906         ipdevice->config = connman_ipconfig_ref(ipconfig);
 907
 908         ipconfig_list = g_list_append(ipconfig_list, ipconfig);
 909
 910         return 0;
 911 }
 912
 913 int __connman_ipconfig_disable(struct connman_ipconfig *ipconfig)
 914 {
 915         struct connman_ipdevice *ipdevice;
 916
 917         DBG("ipconfig %p", ipconfig);
 918
 919         if (ipconfig == NULL || ipconfig->index < 0)
 920                 return -ENODEV;
 921
 922         ipdevice = g_hash_table_lookup(ipdevice_hash,
 923                                         GINT_TO_POINTER(ipconfig->index));
 924         if (ipdevice == NULL)
 925                 return -ENXIO;
 926
 927         if (ipdevice->config == NULL || ipdevice->config != ipconfig)
 928                 return -EINVAL;
 929
 930         ipconfig_list = g_list_remove(ipconfig_list, ipconfig);
 931
 932         connman_ipaddress_clear(ipdevice->config->system);
 933
 934         connman_ipconfig_unref(ipdevice->config);
 935         ipdevice->config = NULL;
 936
 937         return 0;
 938 }
 939
 940 const char *__connman_ipconfig_method2string(enum connman_ipconfig_method method)
 941 {
 942         switch (method) {
 943         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
 944                 break;
 945         case CONNMAN_IPCONFIG_METHOD_OFF:
 946                 return "off";
 947         case CONNMAN_IPCONFIG_METHOD_FIXED:
 948                 return "fixed";
 949         case CONNMAN_IPCONFIG_METHOD_MANUAL:
 950                 return "manual";
 951         case CONNMAN_IPCONFIG_METHOD_DHCP:
 952                 return "dhcp";
 953         }
 954
 955         return NULL;
 956 }
 957
 958 enum connman_ipconfig_method __connman_ipconfig_string2method(const char *method)
 959 {
 960         if (g_strcmp0(method, "off") == 0)
 961                 return CONNMAN_IPCONFIG_METHOD_OFF;
 962         else if (g_strcmp0(method, "fixed") == 0)
 963                 return CONNMAN_IPCONFIG_METHOD_FIXED;
 964         else if (g_strcmp0(method, "manual") == 0)
 965                 return CONNMAN_IPCONFIG_METHOD_MANUAL;
 966         else if (g_strcmp0(method, "dhcp") == 0)
 967                 return CONNMAN_IPCONFIG_METHOD_DHCP;
 968         else
 969                 return CONNMAN_IPCONFIG_METHOD_UNKNOWN;
 970 }
 971
 972 void __connman_ipconfig_append_ipv4(struct connman_ipconfig *ipconfig,
 973                                                         DBusMessageIter *iter)
 974 {
 975         const char *str;
 976
 977         str = __connman_ipconfig_method2string(ipconfig->method);
 978         if (str == NULL)
 979                 return;
 980
 981         connman_dbus_dict_append_basic(iter, "Method", DBUS_TYPE_STRING, &str);
 982
 983         if (ipconfig->system == NULL)
 984                 return;
 985
 986         if (ipconfig->system->local != NULL) {
 987                 in_addr_t addr;
 988                 struct in_addr netmask;
 989                 char *mask;
 990
 991                 connman_dbus_dict_append_basic(iter, "Address",
 992                                 DBUS_TYPE_STRING, &ipconfig->system->local);
 993
 994                 addr = 0xffffffff << (32 - ipconfig->system->prefixlen);
 995                 netmask.s_addr = htonl(addr);
 996                 mask = inet_ntoa(netmask);
 997                 connman_dbus_dict_append_basic(iter, "Netmask",
 998                                                 DBUS_TYPE_STRING, &mask);
 999         }
1000 }
1001
1002 void __connman_ipconfig_append_ipv4config(struct connman_ipconfig *ipconfig,
1003                                                         DBusMessageIter *iter)
1004 {
1005         const char *str;
1006
1007         str = __connman_ipconfig_method2string(ipconfig->method);
1008         if (str == NULL)
1009                 return;
1010
1011         connman_dbus_dict_append_basic(iter, "Method", DBUS_TYPE_STRING, &str);
1012
1013         switch (ipconfig->method) {
1014         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
1015         case CONNMAN_IPCONFIG_METHOD_OFF:
1016         case CONNMAN_IPCONFIG_METHOD_FIXED:
1017         case CONNMAN_IPCONFIG_METHOD_DHCP:
1018                 return;
1019         case CONNMAN_IPCONFIG_METHOD_MANUAL:
1020                 break;
1021         }
1022
1023         if (ipconfig->address == NULL)
1024                 return;
1025
1026         if (ipconfig->address->local != NULL) {
1027                 in_addr_t addr;
1028                 struct in_addr netmask;
1029                 char *mask;
1030
1031                 connman_dbus_dict_append_basic(iter, "Address",
1032                                 DBUS_TYPE_STRING, &ipconfig->address->local);
1033
1034                 addr = 0xffffffff << (32 - ipconfig->address->prefixlen);
1035                 netmask.s_addr = htonl(addr);
1036                 mask = inet_ntoa(netmask);
1037                 connman_dbus_dict_append_basic(iter, "Netmask",
1038                                                 DBUS_TYPE_STRING, &mask);
1039         }
1040 }
1041
1042 int __connman_ipconfig_set_ipv4config(struct connman_ipconfig *ipconfig,
1043                                                         DBusMessageIter *array)
1044 {
1045         enum connman_ipconfig_method method = CONNMAN_IPCONFIG_METHOD_UNKNOWN;
1046         const char *address = NULL, *netmask = NULL;
1047         DBusMessageIter dict;
1048
1049         DBG("ipconfig %p", ipconfig);
1050
1051         if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY)
1052                 return -EINVAL;
1053
1054         dbus_message_iter_recurse(array, &dict);
1055
1056         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1057                 DBusMessageIter entry;
1058                 const char *key;
1059                 int type;
1060
1061                 dbus_message_iter_recurse(&dict, &entry);
1062
1063                 if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
1064                         return -EINVAL;
1065
1066                 dbus_message_iter_get_basic(&entry, &key);
1067                 dbus_message_iter_next(&entry);
1068
1069                 type = dbus_message_iter_get_arg_type(&entry);
1070
1071                 if (g_str_equal(key, "Method") == TRUE) {
1072                         const char *str;
1073
1074                         if (type != DBUS_TYPE_STRING)
1075                                 return -EINVAL;
1076
1077                         dbus_message_iter_get_basic(&entry, &str);
1078                         method = __connman_ipconfig_string2method(str);
1079                 } else if (g_str_equal(key, "Address") == TRUE) {
1080                         if (type != DBUS_TYPE_STRING)
1081                                 return -EINVAL;
1082
1083                         dbus_message_iter_get_basic(&entry, &address);
1084                 } else if (g_str_equal(key, "Netmask") == TRUE) {
1085                         if (type != DBUS_TYPE_STRING)
1086                                 return -EINVAL;
1087
1088                         dbus_message_iter_get_basic(&entry, &netmask);
1089                 }
1090
1091                 dbus_message_iter_next(&dict);
1092         }
1093
1094         DBG("method %d address %s netmask %s", method, address, netmask);
1095
1096         switch (method) {
1097         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
1098         case CONNMAN_IPCONFIG_METHOD_OFF:
1099         case CONNMAN_IPCONFIG_METHOD_FIXED:
1100                 return -EINVAL;
1101
1102         case CONNMAN_IPCONFIG_METHOD_MANUAL:
1103                 if (address == NULL)
1104                         return -EINVAL;
1105
1106                 ipconfig->method = method;
1107                 connman_ipaddress_set(ipconfig->address, address, netmask);
1108                 break;
1109
1110         case CONNMAN_IPCONFIG_METHOD_DHCP:
1111                 if (ipconfig->method == method)
1112                         return 0;
1113
1114                 ipconfig->method = method;
1115                 break;
1116         }
1117
1118         return 0;
1119 }
1120
1121 int __connman_ipconfig_append_ethernet(struct connman_ipconfig *ipconfig,
1122                                                         DBusMessageIter *iter)
1123 {
1124         const char *method = "auto";
1125
1126         connman_dbus_dict_append_basic(iter, "Method",
1127                                                 DBUS_TYPE_STRING, &method);
1128
1129         if (ipconfig->eth != NULL)
1130                 connman_dbus_dict_append_basic(iter, "Address",
1131                                         DBUS_TYPE_STRING, &ipconfig->eth);
1132
1133         if (ipconfig->mtu > 0)
1134                 connman_dbus_dict_append_basic(iter, "MTU",
1135                                         DBUS_TYPE_UINT16, &ipconfig->mtu);
1136
1137         return 0;
1138 }
1139
1140 int __connman_ipconfig_load(struct connman_ipconfig *ipconfig,
1141                 GKeyFile *keyfile, const char *identifier, const char *prefix)
1142 {
1143         DBG("ipconfig %p identifier %s", ipconfig, identifier);
1144
1145         return 0;
1146 }
1147
1148 int __connman_ipconfig_save(struct connman_ipconfig *ipconfig,
1149                 GKeyFile *keyfile, const char *identifier, const char *prefix)
1150 {
1151         DBG("ipconfig %p identifier %s", ipconfig, identifier);
1152
1153         return 0;
1154 }
1155
1156 int __connman_ipconfig_init(void)
1157 {
1158         DBG("");
1159
1160         ipdevice_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1161                                                         NULL, free_ipdevice);
1162
1163         return 0;
1164 }
1165
1166 void __connman_ipconfig_cleanup(void)
1167 {
1168         DBG("");
1169
1170         g_hash_table_destroy(ipdevice_hash);
1171         ipdevice_hash = NULL;
1172 }