src/ipconfig.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  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_MANUAL:
 292                 return;
 293         case CONNMAN_IPCONFIG_METHOD_DHCP:
 294                 break;
 295         }
 296
 297         if (ipdevice->driver != NULL)
 298                 return;
 299
 300         ipdevice->driver_config = connman_ipconfig_clone(ipdevice->config);
 301         if (ipdevice->driver_config == NULL)
 302                 return;
 303
 304         for (list = driver_list; list; list = list->next) {
 305                 struct connman_ipconfig_driver *driver = list->data;
 306
 307                 if (driver->request(ipdevice->driver_config) == 0) {
 308                         ipdevice->driver = driver;
 309                         break;
 310                 }
 311         }
 312
 313         if (ipdevice->driver == NULL) {
 314                 connman_ipconfig_unref(ipdevice->driver_config);
 315                 ipdevice->driver_config = NULL;
 316         }
 317 }
 318
 319 static void __connman_ipconfig_lower_down(struct connman_ipdevice *ipdevice)
 320 {
 321         DBG("ipconfig %p", ipdevice->config);
 322
 323         if (ipdevice->config == NULL)
 324                 return;
 325
 326         if (ipdevice->driver == NULL)
 327                 return;
 328
 329         ipdevice->driver->release(ipdevice->driver_config);
 330
 331         ipdevice->driver = NULL;
 332
 333         connman_ipconfig_unref(ipdevice->driver_config);
 334         ipdevice->driver_config = NULL;
 335
 336         connman_inet_clear_address(ipdevice->index);
 337 }
 338
 339 void __connman_ipconfig_newlink(int index, unsigned short type,
 340                                 unsigned int flags, const char *address,
 341                                                         unsigned short mtu)
 342 {
 343         struct connman_ipdevice *ipdevice;
 344         GList *list;
 345         GString *str;
 346         gboolean up = FALSE, down = FALSE;
 347         gboolean lower_up = FALSE, lower_down = FALSE;
 348         char *ifname;
 349
 350         DBG("index %d", index);
 351
 352         if (type == ARPHRD_LOOPBACK)
 353                 return;
 354
 355         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 356         if (ipdevice != NULL)
 357                 goto update;
 358
 359         ifname = connman_inet_ifname(index);
 360
 361         if (__connman_element_device_isfiltered(ifname) == TRUE) {
 362                 connman_info("Ignoring interface %s (filtered)", ifname);
 363                 g_free(ifname);
 364                 return;
 365         }
 366
 367         ipdevice = g_try_new0(struct connman_ipdevice, 1);
 368         if (ipdevice == NULL) {
 369                 g_free(ifname);
 370                 return;
 371         }
 372
 373         ipdevice->index = index;
 374         ipdevice->ifname = ifname;
 375         ipdevice->type = type;
 376
 377         g_hash_table_insert(ipdevice_hash, GINT_TO_POINTER(index), ipdevice);
 378
 379         connman_info("%s {create} index %d type %d <%s>", ipdevice->ifname,
 380                                                 index, type, type2str(type));
 381
 382 update:
 383         if (ipdevice->config != NULL) {
 384                 g_free(ipdevice->config->eth);
 385                 ipdevice->config->eth = g_strdup(address);
 386                 ipdevice->config->mtu = mtu;
 387         }
 388
 389         if (flags == ipdevice->flags)
 390                 return;
 391
 392         if ((ipdevice->flags & IFF_UP) != (flags & IFF_UP)) {
 393                 if (flags & IFF_UP)
 394                         up = TRUE;
 395                 else
 396                         down = TRUE;
 397         }
 398
 399         if ((ipdevice->flags & (IFF_RUNNING | IFF_LOWER_UP)) !=
 400                                 (flags & (IFF_RUNNING | IFF_LOWER_UP))) {
 401                 if ((flags & (IFF_RUNNING | IFF_LOWER_UP)) ==
 402                                         (IFF_RUNNING | IFF_LOWER_UP))
 403                         lower_up = TRUE;
 404                 else if ((flags & (IFF_RUNNING | IFF_LOWER_UP)) == 0)
 405                         lower_down = TRUE;
 406         }
 407
 408         ipdevice->flags = flags;
 409
 410         str = g_string_new(NULL);
 411         if (str == NULL)
 412                 return;
 413
 414         if (flags & IFF_UP)
 415                 g_string_append(str, "UP");
 416         else
 417                 g_string_append(str, "DOWN");
 418
 419         if (flags & IFF_RUNNING)
 420                 g_string_append(str, ",RUNNING");
 421
 422         if (flags & IFF_LOWER_UP)
 423                 g_string_append(str, ",LOWER_UP");
 424
 425         connman_info("%s {update} flags %u <%s>", ipdevice->ifname,
 426                                                         flags, str->str);
 427
 428         g_string_free(str, TRUE);
 429
 430         for (list = g_list_first(ipconfig_list); list;
 431                                                 list = g_list_next(list)) {
 432                 struct connman_ipconfig *ipconfig = list->data;
 433
 434                 if (index != ipconfig->index)
 435                         continue;
 436
 437                 if (up == TRUE && ipconfig->ops->up)
 438                         ipconfig->ops->up(ipconfig);
 439                 if (lower_up == TRUE && ipconfig->ops->lower_up)
 440                         ipconfig->ops->lower_up(ipconfig);
 441
 442                 if (lower_down == TRUE && ipconfig->ops->lower_down)
 443                         ipconfig->ops->lower_down(ipconfig);
 444                 if (down == TRUE && ipconfig->ops->down)
 445                         ipconfig->ops->down(ipconfig);
 446         }
 447
 448         if (lower_up)
 449                 __connman_ipconfig_lower_up(ipdevice);
 450         if (lower_down)
 451                 __connman_ipconfig_lower_down(ipdevice);
 452 }
 453
 454 void __connman_ipconfig_dellink(int index)
 455 {
 456         struct connman_ipdevice *ipdevice;
 457         GList *list;
 458
 459         DBG("index %d", index);
 460
 461         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 462         if (ipdevice == NULL)
 463                 return;
 464
 465         for (list = g_list_first(ipconfig_list); list;
 466                                                 list = g_list_next(list)) {
 467                 struct connman_ipconfig *ipconfig = list->data;
 468
 469                 if (index != ipconfig->index)
 470                         continue;
 471
 472                 ipconfig->index = -1;
 473
 474                 if (ipconfig->ops->lower_down)
 475                         ipconfig->ops->lower_down(ipconfig);
 476                 if (ipconfig->ops->down)
 477                         ipconfig->ops->down(ipconfig);
 478         }
 479
 480         __connman_ipconfig_lower_down(ipdevice);
 481
 482         g_hash_table_remove(ipdevice_hash, GINT_TO_POINTER(index));
 483 }
 484
 485 void __connman_ipconfig_newaddr(int index, const char *label,
 486                                 unsigned char prefixlen, const char *address)
 487 {
 488         struct connman_ipdevice *ipdevice;
 489         struct connman_ipaddress *ipaddress;
 490         GList *list;
 491
 492         DBG("index %d", index);
 493
 494         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 495         if (ipdevice == NULL)
 496                 return;
 497
 498         ipaddress = connman_ipaddress_alloc();
 499         if (ipaddress == NULL)
 500                 return;
 501
 502         ipaddress->prefixlen = prefixlen;
 503         ipaddress->local = g_strdup(address);
 504
 505         ipdevice->address_list = g_slist_append(ipdevice->address_list,
 506                                                                 ipaddress);
 507
 508         connman_info("%s {add} address %s/%u label %s", ipdevice->ifname,
 509                                                 address, prefixlen, label);
 510
 511         if (ipdevice->config != NULL)
 512                 connman_ipaddress_copy(ipdevice->config->system, ipaddress);
 513
 514         if ((ipdevice->flags & (IFF_RUNNING | IFF_LOWER_UP)) != (IFF_RUNNING | IFF_LOWER_UP))
 515                 return;
 516
 517         if (g_slist_length(ipdevice->address_list) > 1)
 518                 return;
 519
 520         for (list = g_list_first(ipconfig_list); list;
 521                                                 list = g_list_next(list)) {
 522                 struct connman_ipconfig *ipconfig = list->data;
 523
 524                 if (index != ipconfig->index)
 525                         continue;
 526
 527                 if (ipconfig->ops->ip_bound)
 528                         ipconfig->ops->ip_bound(ipconfig);
 529         }
 530 }
 531
 532 void __connman_ipconfig_deladdr(int index, const char *label,
 533                                 unsigned char prefixlen, const char *address)
 534 {
 535         struct connman_ipdevice *ipdevice;
 536         struct connman_ipaddress *ipaddress;
 537         GList *list;
 538
 539         DBG("index %d", index);
 540
 541         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 542         if (ipdevice == NULL)
 543                 return;
 544
 545         ipaddress = find_ipaddress(ipdevice, prefixlen, address);
 546         if (ipaddress == NULL)
 547                 return;
 548
 549         ipdevice->address_list = g_slist_remove(ipdevice->address_list,
 550                                                                 ipaddress);
 551
 552         connman_ipaddress_free(ipaddress);
 553
 554         connman_info("%s {del} address %s/%u label %s", ipdevice->ifname,
 555                                                 address, prefixlen, label);
 556
 557         if ((ipdevice->flags & (IFF_RUNNING | IFF_LOWER_UP)) != (IFF_RUNNING | IFF_LOWER_UP))
 558                 return;
 559
 560         if (g_slist_length(ipdevice->address_list) > 0)
 561                 return;
 562
 563         for (list = g_list_first(ipconfig_list); list;
 564                                                 list = g_list_next(list)) {
 565                 struct connman_ipconfig *ipconfig = list->data;
 566
 567                 if (index != ipconfig->index)
 568                         continue;
 569
 570                 if (ipconfig->ops->ip_release)
 571                         ipconfig->ops->ip_release(ipconfig);
 572         }
 573 }
 574
 575 void __connman_ipconfig_newroute(int index, unsigned char scope,
 576                                         const char *dst, const char *gateway)
 577 {
 578         struct connman_ipdevice *ipdevice;
 579
 580         DBG("index %d", index);
 581
 582         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 583         if (ipdevice == NULL)
 584                 return;
 585
 586         if (scope == 0 && g_strcmp0(dst, "0.0.0.0") == 0) {
 587                 g_free(ipdevice->gateway);
 588                 ipdevice->gateway = g_strdup(gateway);
 589         }
 590
 591         connman_info("%s {add} route %s gw %s scope %u <%s>",
 592                                         ipdevice->ifname, dst, gateway,
 593                                                 scope, scope2str(scope));
 594 }
 595
 596 void __connman_ipconfig_delroute(int index, unsigned char scope,
 597                                         const char *dst, const char *gateway)
 598 {
 599         struct connman_ipdevice *ipdevice;
 600
 601         DBG("index %d", index);
 602
 603         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 604         if (ipdevice == NULL)
 605                 return;
 606
 607         if (scope == 0 && g_strcmp0(dst, "0.0.0.0") == 0) {
 608                 g_free(ipdevice->gateway);
 609                 ipdevice->gateway = NULL;
 610         }
 611
 612         connman_info("%s {del} route %s gw %s scope %u <%s>",
 613                                         ipdevice->ifname, dst, gateway,
 614                                                 scope, scope2str(scope));
 615 }
 616
 617 void __connman_ipconfig_foreach(void (*function) (int index, void *user_data),
 618                                                         void *user_data)
 619 {
 620         GList *list, *keys;
 621
 622         keys = g_hash_table_get_keys(ipdevice_hash);
 623         if (keys == NULL)
 624                 return;
 625
 626         for (list = g_list_first(keys); list; list = g_list_next(list)) {
 627                 int index = GPOINTER_TO_INT(list->data);
 628
 629                 function(index, user_data);
 630         }
 631
 632         g_list_free(keys);
 633 }
 634
 635 unsigned short __connman_ipconfig_get_type(int index)
 636 {
 637         struct connman_ipdevice *ipdevice;
 638
 639         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 640         if (ipdevice == NULL)
 641                 return ARPHRD_VOID;
 642
 643         return ipdevice->type;
 644 }
 645
 646 unsigned int __connman_ipconfig_get_flags(int index)
 647 {
 648         struct connman_ipdevice *ipdevice;
 649
 650         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 651         if (ipdevice == NULL)
 652                 return 0;
 653
 654         return ipdevice->flags;
 655 }
 656
 657 const char *__connman_ipconfig_get_gateway(int index)
 658 {
 659         struct connman_ipdevice *ipdevice;
 660
 661         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 662         if (ipdevice == NULL)
 663                 return NULL;
 664
 665         return ipdevice->gateway;
 666 }
 667
 668 /**
 669  * connman_ipconfig_create:
 670  *
 671  * Allocate a new ipconfig structure.
 672  *
 673  * Returns: a newly-allocated #connman_ipconfig structure
 674  */
 675 struct connman_ipconfig *connman_ipconfig_create(int index)
 676 {
 677         struct connman_ipconfig *ipconfig;
 678
 679         DBG("index %d", index);
 680
 681         ipconfig = g_try_new0(struct connman_ipconfig, 1);
 682         if (ipconfig == NULL)
 683                 return NULL;
 684
 685         ipconfig->refcount = 1;
 686
 687         ipconfig->index = index;
 688
 689         ipconfig->address = connman_ipaddress_alloc();
 690         if (ipconfig->address == NULL) {
 691                 g_free(ipconfig);
 692                 return NULL;
 693         }
 694
 695         ipconfig->system = connman_ipaddress_alloc();
 696
 697         DBG("ipconfig %p", ipconfig);
 698
 699         return ipconfig;
 700 }
 701
 702 /**
 703  * connman_ipconfig_clone:
 704  *
 705  * Clone an ipconfig structure and create new reference.
 706  *
 707  * Returns: a newly-allocated #connman_ipconfig structure
 708  */
 709 struct connman_ipconfig *connman_ipconfig_clone(struct connman_ipconfig *ipconfig)
 710 {
 711         struct connman_ipconfig *ipconfig_clone;
 712
 713         DBG("ipconfig %p", ipconfig);
 714
 715         ipconfig_clone = g_try_new0(struct connman_ipconfig, 1);
 716         if (ipconfig_clone == NULL)
 717                 return NULL;
 718
 719         ipconfig_clone->refcount = 1;
 720
 721         ipconfig_clone->origin = connman_ipconfig_ref(ipconfig);
 722
 723         ipconfig_clone->index = -1;
 724
 725         return ipconfig_clone;
 726 }
 727
 728 /**
 729  * connman_ipconfig_ref:
 730  * @ipconfig: ipconfig structure
 731  *
 732  * Increase reference counter of ipconfig
 733  */
 734 struct connman_ipconfig *connman_ipconfig_ref(struct connman_ipconfig *ipconfig)
 735 {
 736         g_atomic_int_inc(&ipconfig->refcount);
 737
 738         return ipconfig;
 739 }
 740
 741 /**
 742  * connman_ipconfig_unref:
 743  * @ipconfig: ipconfig structure
 744  *
 745  * Decrease reference counter of ipconfig
 746  */
 747 void connman_ipconfig_unref(struct connman_ipconfig *ipconfig)
 748 {
 749         if (g_atomic_int_dec_and_test(&ipconfig->refcount) == TRUE) {
 750                 connman_ipconfig_set_ops(ipconfig, NULL);
 751
 752                 if (ipconfig->origin != NULL) {
 753                         connman_ipconfig_unref(ipconfig->origin);
 754                         ipconfig->origin = NULL;
 755                 }
 756
 757                 connman_ipaddress_free(ipconfig->system);
 758                 connman_ipaddress_free(ipconfig->address);
 759                 g_free(ipconfig->eth);
 760                 g_free(ipconfig);
 761         }
 762 }
 763
 764 /**
 765  * connman_ipconfig_get_data:
 766  * @ipconfig: ipconfig structure
 767  *
 768  * Get private data pointer
 769  */
 770 void *connman_ipconfig_get_data(struct connman_ipconfig *ipconfig)
 771 {
 772         return ipconfig->ops_data;
 773 }
 774
 775 /**
 776  * connman_ipconfig_set_data:
 777  * @ipconfig: ipconfig structure
 778  * @data: data pointer
 779  *
 780  * Set private data pointer
 781  */
 782 void connman_ipconfig_set_data(struct connman_ipconfig *ipconfig, void *data)
 783 {
 784         ipconfig->ops_data = data;
 785 }
 786
 787 /**
 788  * connman_ipconfig_get_index:
 789  * @ipconfig: ipconfig structure
 790  *
 791  * Get interface index
 792  */
 793 int connman_ipconfig_get_index(struct connman_ipconfig *ipconfig)
 794 {
 795         if (ipconfig->origin != NULL)
 796                 return ipconfig->origin->index;
 797
 798         return ipconfig->index;
 799 }
 800
 801 /**
 802  * connman_ipconfig_get_ifname:
 803  * @ipconfig: ipconfig structure
 804  *
 805  * Get interface name
 806  */
 807 const char *connman_ipconfig_get_ifname(struct connman_ipconfig *ipconfig)
 808 {
 809         struct connman_ipdevice *ipdevice;
 810
 811         if (ipconfig->index < 0)
 812                 return NULL;
 813
 814         ipdevice = g_hash_table_lookup(ipdevice_hash,
 815                                         GINT_TO_POINTER(ipconfig->index));
 816         if (ipdevice == NULL)
 817                 return NULL;
 818
 819         return ipdevice->ifname;
 820 }
 821
 822 /**
 823  * connman_ipconfig_set_ops:
 824  * @ipconfig: ipconfig structure
 825  * @ops: operation callbacks
 826  *
 827  * Set the operation callbacks
 828  */
 829 void connman_ipconfig_set_ops(struct connman_ipconfig *ipconfig,
 830                                 const struct connman_ipconfig_ops *ops)
 831 {
 832         if (ipconfig->ops != NULL)
 833                 ipconfig_list = g_list_remove(ipconfig_list, ipconfig);
 834
 835         ipconfig->ops = ops;
 836
 837         if (ops != NULL)
 838                 ipconfig_list = g_list_append(ipconfig_list, ipconfig);
 839 }
 840
 841 /**
 842  * connman_ipconfig_set_method:
 843  * @ipconfig: ipconfig structure
 844  * @method: configuration method
 845  *
 846  * Set the configuration method
 847  */
 848 int connman_ipconfig_set_method(struct connman_ipconfig *ipconfig,
 849                                         enum connman_ipconfig_method method)
 850 {
 851         ipconfig->method = method;
 852
 853         return 0;
 854 }
 855
 856 /**
 857  * connman_ipconfig_bind:
 858  * @ipconfig: ipconfig structure
 859  * @ipaddress: ipaddress structure
 860  *
 861  * Bind IP address details to configuration
 862  */
 863 void connman_ipconfig_bind(struct connman_ipconfig *ipconfig,
 864                                         struct connman_ipaddress *ipaddress)
 865 {
 866         struct connman_ipconfig *origin;
 867
 868         origin = ipconfig->origin ? ipconfig->origin : ipconfig;
 869
 870         connman_ipaddress_copy(origin->address, ipaddress);
 871
 872         connman_inet_set_address(origin->index, origin->address);
 873 }
 874
 875 int __connman_ipconfig_enable(struct connman_ipconfig *ipconfig)
 876 {
 877         struct connman_ipdevice *ipdevice;
 878
 879         DBG("ipconfig %p", ipconfig);
 880
 881         if (ipconfig == NULL || ipconfig->index < 0)
 882                 return -ENODEV;
 883
 884         ipdevice = g_hash_table_lookup(ipdevice_hash,
 885                                         GINT_TO_POINTER(ipconfig->index));
 886         if (ipdevice == NULL)
 887                 return -ENXIO;
 888
 889         if (ipdevice->config != NULL) {
 890                 connman_ipaddress_clear(ipdevice->config->system);
 891
 892                 connman_ipconfig_unref(ipdevice->config);
 893         }
 894
 895         ipdevice->config = connman_ipconfig_ref(ipconfig);
 896
 897         return 0;
 898 }
 899
 900 int __connman_ipconfig_disable(struct connman_ipconfig *ipconfig)
 901 {
 902         struct connman_ipdevice *ipdevice;
 903
 904         DBG("ipconfig %p", ipconfig);
 905
 906         if (ipconfig == NULL || ipconfig->index < 0)
 907                 return -ENODEV;
 908
 909         ipdevice = g_hash_table_lookup(ipdevice_hash,
 910                                         GINT_TO_POINTER(ipconfig->index));
 911         if (ipdevice == NULL)
 912                 return -ENXIO;
 913
 914         if (ipdevice->config == NULL || ipdevice->config != ipconfig)
 915                 return -EINVAL;
 916
 917         connman_ipaddress_clear(ipdevice->config->system);
 918
 919         connman_ipconfig_unref(ipdevice->config);
 920         ipdevice->config = NULL;
 921
 922         return 0;
 923 }
 924
 925 const char *__connman_ipconfig_method2string(enum connman_ipconfig_method method)
 926 {
 927         switch (method) {
 928         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
 929                 break;
 930         case CONNMAN_IPCONFIG_METHOD_OFF:
 931                 return "off";
 932         case CONNMAN_IPCONFIG_METHOD_MANUAL:
 933                 return "manual";
 934         case CONNMAN_IPCONFIG_METHOD_DHCP:
 935                 return "dhcp";
 936         }
 937
 938         return NULL;
 939 }
 940
 941 enum connman_ipconfig_method __connman_ipconfig_string2method(const char *method)
 942 {
 943         if (g_strcmp0(method, "off") == 0)
 944                 return CONNMAN_IPCONFIG_METHOD_OFF;
 945         else if (g_strcmp0(method, "manual") == 0)
 946                 return CONNMAN_IPCONFIG_METHOD_MANUAL;
 947         else if (g_strcmp0(method, "dhcp") == 0)
 948                 return CONNMAN_IPCONFIG_METHOD_DHCP;
 949         else
 950                 return CONNMAN_IPCONFIG_METHOD_UNKNOWN;
 951 }
 952
 953 void __connman_ipconfig_append_ipv4(struct connman_ipconfig *ipconfig,
 954                                                         DBusMessageIter *iter)
 955 {
 956         const char *str;
 957
 958         str = __connman_ipconfig_method2string(ipconfig->method);
 959         if (str == NULL)
 960                 return;
 961
 962         connman_dbus_dict_append_basic(iter, "Method", DBUS_TYPE_STRING, &str);
 963
 964         if (ipconfig->system == NULL)
 965                 return;
 966
 967         if (ipconfig->system->local != NULL) {
 968                 in_addr_t addr;
 969                 struct in_addr netmask;
 970                 char *mask;
 971
 972                 connman_dbus_dict_append_basic(iter, "Address",
 973                                 DBUS_TYPE_STRING, &ipconfig->system->local);
 974
 975                 addr = 0xffffffff << (32 - ipconfig->system->prefixlen);
 976                 netmask.s_addr = htonl(addr);
 977                 mask = inet_ntoa(netmask);
 978                 connman_dbus_dict_append_basic(iter, "Netmask",
 979                                                 DBUS_TYPE_STRING, &mask);
 980         }
 981 }
 982
 983 void __connman_ipconfig_append_ipv4config(struct connman_ipconfig *ipconfig,
 984                                                         DBusMessageIter *iter)
 985 {
 986         const char *str;
 987
 988         str = __connman_ipconfig_method2string(ipconfig->method);
 989         if (str == NULL)
 990                 return;
 991
 992         connman_dbus_dict_append_basic(iter, "Method", DBUS_TYPE_STRING, &str);
 993
 994         switch (ipconfig->method) {
 995         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
 996         case CONNMAN_IPCONFIG_METHOD_OFF:
 997         case CONNMAN_IPCONFIG_METHOD_DHCP:
 998                 return;
 999         case CONNMAN_IPCONFIG_METHOD_MANUAL:
1000                 break;
1001         }
1002
1003         if (ipconfig->address == NULL)
1004                 return;
1005
1006         if (ipconfig->address->local != NULL) {
1007                 in_addr_t addr;
1008                 struct in_addr netmask;
1009                 char *mask;
1010
1011                 connman_dbus_dict_append_basic(iter, "Address",
1012                                 DBUS_TYPE_STRING, &ipconfig->address->local);
1013
1014                 addr = 0xffffffff << (32 - ipconfig->address->prefixlen);
1015                 netmask.s_addr = htonl(addr);
1016                 mask = inet_ntoa(netmask);
1017                 connman_dbus_dict_append_basic(iter, "Netmask",
1018                                                 DBUS_TYPE_STRING, &mask);
1019         }
1020 }
1021
1022 int __connman_ipconfig_set_ipv4config(struct connman_ipconfig *ipconfig,
1023                                                         DBusMessageIter *array)
1024 {
1025         enum connman_ipconfig_method method = CONNMAN_IPCONFIG_METHOD_UNKNOWN;
1026         const char *address = NULL, *netmask = NULL;
1027         DBusMessageIter dict;
1028
1029         DBG("ipconfig %p", ipconfig);
1030
1031         if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY)
1032                 return -EINVAL;
1033
1034         dbus_message_iter_recurse(array, &dict);
1035
1036         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1037                 DBusMessageIter entry;
1038                 const char *key;
1039                 int type;
1040
1041                 dbus_message_iter_recurse(&dict, &entry);
1042
1043                 if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
1044                         return -EINVAL;
1045
1046                 dbus_message_iter_get_basic(&entry, &key);
1047                 dbus_message_iter_next(&entry);
1048
1049                 type = dbus_message_iter_get_arg_type(&entry);
1050
1051                 if (g_str_equal(key, "Method") == TRUE) {
1052                         const char *str;
1053
1054                         if (type != DBUS_TYPE_STRING)
1055                                 return -EINVAL;
1056
1057                         dbus_message_iter_get_basic(&entry, &str);
1058                         method = __connman_ipconfig_string2method(str);
1059                 } else if (g_str_equal(key, "Address") == TRUE) {
1060                         if (type != DBUS_TYPE_STRING)
1061                                 return -EINVAL;
1062
1063                         dbus_message_iter_get_basic(&entry, &address);
1064                 } else if (g_str_equal(key, "Netmask") == TRUE) {
1065                         if (type != DBUS_TYPE_STRING)
1066                                 return -EINVAL;
1067
1068                         dbus_message_iter_get_basic(&entry, &netmask);
1069                 }
1070
1071                 dbus_message_iter_next(&dict);
1072         }
1073
1074         DBG("method %d address %s netmask %s", method, address, netmask);
1075
1076         switch (method) {
1077         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
1078         case CONNMAN_IPCONFIG_METHOD_OFF:
1079                 return -EINVAL;
1080
1081         case CONNMAN_IPCONFIG_METHOD_MANUAL:
1082                 if (address == NULL)
1083                         return -EINVAL;
1084
1085                 ipconfig->method = method;
1086                 connman_ipaddress_set(ipconfig->address, address, netmask);
1087                 break;
1088
1089         case CONNMAN_IPCONFIG_METHOD_DHCP:
1090                 if (ipconfig->method == method)
1091                         return 0;
1092
1093                 ipconfig->method = method;
1094                 break;
1095         }
1096
1097         return 0;
1098 }
1099
1100 int __connman_ipconfig_append_ethernet(struct connman_ipconfig *ipconfig,
1101                                                         DBusMessageIter *iter)
1102 {
1103         const char *method = "auto";
1104
1105         connman_dbus_dict_append_basic(iter, "Method",
1106                                                 DBUS_TYPE_STRING, &method);
1107
1108         if (ipconfig->eth != NULL)
1109                 connman_dbus_dict_append_basic(iter, "Address",
1110                                         DBUS_TYPE_STRING, &ipconfig->eth);
1111
1112         if (ipconfig->mtu > 0)
1113                 connman_dbus_dict_append_basic(iter, "MTU",
1114                                         DBUS_TYPE_UINT16, &ipconfig->mtu);
1115
1116         return 0;
1117 }
1118
1119 int __connman_ipconfig_load(struct connman_ipconfig *ipconfig,
1120                 GKeyFile *keyfile, const char *identifier, const char *prefix)
1121 {
1122         DBG("ipconfig %p identifier %s", ipconfig, identifier);
1123
1124         return 0;
1125 }
1126
1127 int __connman_ipconfig_save(struct connman_ipconfig *ipconfig,
1128                 GKeyFile *keyfile, const char *identifier, const char *prefix)
1129 {
1130         DBG("ipconfig %p identifier %s", ipconfig, identifier);
1131
1132         return 0;
1133 }
1134
1135 int __connman_ipconfig_init(void)
1136 {
1137         DBG("");
1138
1139         ipdevice_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1140                                                         NULL, free_ipdevice);
1141
1142         return 0;
1143 }
1144
1145 void __connman_ipconfig_cleanup(void)
1146 {
1147         DBG("");
1148
1149         g_hash_table_destroy(ipdevice_hash);
1150         ipdevice_hash = NULL;
1151 }