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_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 (up == TRUE && ipconfig->ops->up)
 439                         ipconfig->ops->up(ipconfig);
 440                 if (lower_up == TRUE && ipconfig->ops->lower_up)
 441                         ipconfig->ops->lower_up(ipconfig);
 442
 443                 if (lower_down == TRUE && ipconfig->ops->lower_down)
 444                         ipconfig->ops->lower_down(ipconfig);
 445                 if (down == TRUE && ipconfig->ops->down)
 446                         ipconfig->ops->down(ipconfig);
 447         }
 448
 449         if (lower_up)
 450                 __connman_ipconfig_lower_up(ipdevice);
 451         if (lower_down)
 452                 __connman_ipconfig_lower_down(ipdevice);
 453 }
 454
 455 void __connman_ipconfig_dellink(int index)
 456 {
 457         struct connman_ipdevice *ipdevice;
 458         GList *list;
 459
 460         DBG("index %d", index);
 461
 462         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 463         if (ipdevice == NULL)
 464                 return;
 465
 466         for (list = g_list_first(ipconfig_list); list;
 467                                                 list = g_list_next(list)) {
 468                 struct connman_ipconfig *ipconfig = list->data;
 469
 470                 if (index != ipconfig->index)
 471                         continue;
 472
 473                 ipconfig->index = -1;
 474
 475                 if (ipconfig->ops->lower_down)
 476                         ipconfig->ops->lower_down(ipconfig);
 477                 if (ipconfig->ops->down)
 478                         ipconfig->ops->down(ipconfig);
 479         }
 480
 481         __connman_ipconfig_lower_down(ipdevice);
 482
 483         g_hash_table_remove(ipdevice_hash, GINT_TO_POINTER(index));
 484 }
 485
 486 void __connman_ipconfig_newaddr(int index, const char *label,
 487                                 unsigned char prefixlen, const char *address)
 488 {
 489         struct connman_ipdevice *ipdevice;
 490         struct connman_ipaddress *ipaddress;
 491         GList *list;
 492
 493         DBG("index %d", index);
 494
 495         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 496         if (ipdevice == NULL)
 497                 return;
 498
 499         ipaddress = connman_ipaddress_alloc();
 500         if (ipaddress == NULL)
 501                 return;
 502
 503         ipaddress->prefixlen = prefixlen;
 504         ipaddress->local = g_strdup(address);
 505
 506         ipdevice->address_list = g_slist_append(ipdevice->address_list,
 507                                                                 ipaddress);
 508
 509         connman_info("%s {add} address %s/%u label %s", ipdevice->ifname,
 510                                                 address, prefixlen, label);
 511
 512         if (ipdevice->config != NULL)
 513                 connman_ipaddress_copy(ipdevice->config->system, ipaddress);
 514
 515         if ((ipdevice->flags & (IFF_RUNNING | IFF_LOWER_UP)) != (IFF_RUNNING | IFF_LOWER_UP))
 516                 return;
 517
 518         if (g_slist_length(ipdevice->address_list) > 1)
 519                 return;
 520
 521         for (list = g_list_first(ipconfig_list); list;
 522                                                 list = g_list_next(list)) {
 523                 struct connman_ipconfig *ipconfig = list->data;
 524
 525                 if (index != ipconfig->index)
 526                         continue;
 527
 528                 if (ipconfig->ops->ip_bound)
 529                         ipconfig->ops->ip_bound(ipconfig);
 530         }
 531 }
 532
 533 void __connman_ipconfig_deladdr(int index, const char *label,
 534                                 unsigned char prefixlen, const char *address)
 535 {
 536         struct connman_ipdevice *ipdevice;
 537         struct connman_ipaddress *ipaddress;
 538         GList *list;
 539
 540         DBG("index %d", index);
 541
 542         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 543         if (ipdevice == NULL)
 544                 return;
 545
 546         ipaddress = find_ipaddress(ipdevice, prefixlen, address);
 547         if (ipaddress == NULL)
 548                 return;
 549
 550         ipdevice->address_list = g_slist_remove(ipdevice->address_list,
 551                                                                 ipaddress);
 552
 553         connman_ipaddress_free(ipaddress);
 554
 555         connman_info("%s {del} address %s/%u label %s", ipdevice->ifname,
 556                                                 address, prefixlen, label);
 557
 558         if ((ipdevice->flags & (IFF_RUNNING | IFF_LOWER_UP)) != (IFF_RUNNING | IFF_LOWER_UP))
 559                 return;
 560
 561         if (g_slist_length(ipdevice->address_list) > 0)
 562                 return;
 563
 564         for (list = g_list_first(ipconfig_list); list;
 565                                                 list = g_list_next(list)) {
 566                 struct connman_ipconfig *ipconfig = list->data;
 567
 568                 if (index != ipconfig->index)
 569                         continue;
 570
 571                 if (ipconfig->ops->ip_release)
 572                         ipconfig->ops->ip_release(ipconfig);
 573         }
 574 }
 575
 576 void __connman_ipconfig_newroute(int index, unsigned char scope,
 577                                         const char *dst, const char *gateway)
 578 {
 579         struct connman_ipdevice *ipdevice;
 580
 581         DBG("index %d", index);
 582
 583         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 584         if (ipdevice == NULL)
 585                 return;
 586
 587         if (scope == 0 && g_strcmp0(dst, "0.0.0.0") == 0) {
 588                 g_free(ipdevice->gateway);
 589                 ipdevice->gateway = g_strdup(gateway);
 590         }
 591
 592         connman_info("%s {add} route %s gw %s scope %u <%s>",
 593                                         ipdevice->ifname, dst, gateway,
 594                                                 scope, scope2str(scope));
 595 }
 596
 597 void __connman_ipconfig_delroute(int index, unsigned char scope,
 598                                         const char *dst, const char *gateway)
 599 {
 600         struct connman_ipdevice *ipdevice;
 601
 602         DBG("index %d", index);
 603
 604         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 605         if (ipdevice == NULL)
 606                 return;
 607
 608         if (scope == 0 && g_strcmp0(dst, "0.0.0.0") == 0) {
 609                 g_free(ipdevice->gateway);
 610                 ipdevice->gateway = NULL;
 611         }
 612
 613         connman_info("%s {del} route %s gw %s scope %u <%s>",
 614                                         ipdevice->ifname, dst, gateway,
 615                                                 scope, scope2str(scope));
 616 }
 617
 618 void __connman_ipconfig_foreach(void (*function) (int index, void *user_data),
 619                                                         void *user_data)
 620 {
 621         GList *list, *keys;
 622
 623         keys = g_hash_table_get_keys(ipdevice_hash);
 624         if (keys == NULL)
 625                 return;
 626
 627         for (list = g_list_first(keys); list; list = g_list_next(list)) {
 628                 int index = GPOINTER_TO_INT(list->data);
 629
 630                 function(index, user_data);
 631         }
 632
 633         g_list_free(keys);
 634 }
 635
 636 unsigned short __connman_ipconfig_get_type(int index)
 637 {
 638         struct connman_ipdevice *ipdevice;
 639
 640         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 641         if (ipdevice == NULL)
 642                 return ARPHRD_VOID;
 643
 644         return ipdevice->type;
 645 }
 646
 647 unsigned int __connman_ipconfig_get_flags(int index)
 648 {
 649         struct connman_ipdevice *ipdevice;
 650
 651         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 652         if (ipdevice == NULL)
 653                 return 0;
 654
 655         return ipdevice->flags;
 656 }
 657
 658 const char *__connman_ipconfig_get_gateway(int index)
 659 {
 660         struct connman_ipdevice *ipdevice;
 661
 662         ipdevice = g_hash_table_lookup(ipdevice_hash, GINT_TO_POINTER(index));
 663         if (ipdevice == NULL)
 664                 return NULL;
 665
 666         return ipdevice->gateway;
 667 }
 668
 669 /**
 670  * connman_ipconfig_create:
 671  *
 672  * Allocate a new ipconfig structure.
 673  *
 674  * Returns: a newly-allocated #connman_ipconfig structure
 675  */
 676 struct connman_ipconfig *connman_ipconfig_create(int index)
 677 {
 678         struct connman_ipconfig *ipconfig;
 679
 680         DBG("index %d", index);
 681
 682         ipconfig = g_try_new0(struct connman_ipconfig, 1);
 683         if (ipconfig == NULL)
 684                 return NULL;
 685
 686         ipconfig->refcount = 1;
 687
 688         ipconfig->index = index;
 689
 690         ipconfig->address = connman_ipaddress_alloc();
 691         if (ipconfig->address == NULL) {
 692                 g_free(ipconfig);
 693                 return NULL;
 694         }
 695
 696         ipconfig->system = connman_ipaddress_alloc();
 697
 698         DBG("ipconfig %p", ipconfig);
 699
 700         return ipconfig;
 701 }
 702
 703 /**
 704  * connman_ipconfig_clone:
 705  *
 706  * Clone an ipconfig structure and create new reference.
 707  *
 708  * Returns: a newly-allocated #connman_ipconfig structure
 709  */
 710 struct connman_ipconfig *connman_ipconfig_clone(struct connman_ipconfig *ipconfig)
 711 {
 712         struct connman_ipconfig *ipconfig_clone;
 713
 714         DBG("ipconfig %p", ipconfig);
 715
 716         ipconfig_clone = g_try_new0(struct connman_ipconfig, 1);
 717         if (ipconfig_clone == NULL)
 718                 return NULL;
 719
 720         ipconfig_clone->refcount = 1;
 721
 722         ipconfig_clone->origin = connman_ipconfig_ref(ipconfig);
 723
 724         ipconfig_clone->index = -1;
 725
 726         return ipconfig_clone;
 727 }
 728
 729 /**
 730  * connman_ipconfig_ref:
 731  * @ipconfig: ipconfig structure
 732  *
 733  * Increase reference counter of ipconfig
 734  */
 735 struct connman_ipconfig *connman_ipconfig_ref(struct connman_ipconfig *ipconfig)
 736 {
 737         g_atomic_int_inc(&ipconfig->refcount);
 738
 739         return ipconfig;
 740 }
 741
 742 /**
 743  * connman_ipconfig_unref:
 744  * @ipconfig: ipconfig structure
 745  *
 746  * Decrease reference counter of ipconfig
 747  */
 748 void connman_ipconfig_unref(struct connman_ipconfig *ipconfig)
 749 {
 750         if (g_atomic_int_dec_and_test(&ipconfig->refcount) == TRUE) {
 751                 connman_ipconfig_set_ops(ipconfig, NULL);
 752
 753                 if (ipconfig->origin != NULL) {
 754                         connman_ipconfig_unref(ipconfig->origin);
 755                         ipconfig->origin = NULL;
 756                 }
 757
 758                 connman_ipaddress_free(ipconfig->system);
 759                 connman_ipaddress_free(ipconfig->address);
 760                 g_free(ipconfig->eth);
 761                 g_free(ipconfig);
 762         }
 763 }
 764
 765 /**
 766  * connman_ipconfig_get_data:
 767  * @ipconfig: ipconfig structure
 768  *
 769  * Get private data pointer
 770  */
 771 void *connman_ipconfig_get_data(struct connman_ipconfig *ipconfig)
 772 {
 773         return ipconfig->ops_data;
 774 }
 775
 776 /**
 777  * connman_ipconfig_set_data:
 778  * @ipconfig: ipconfig structure
 779  * @data: data pointer
 780  *
 781  * Set private data pointer
 782  */
 783 void connman_ipconfig_set_data(struct connman_ipconfig *ipconfig, void *data)
 784 {
 785         ipconfig->ops_data = data;
 786 }
 787
 788 /**
 789  * connman_ipconfig_get_index:
 790  * @ipconfig: ipconfig structure
 791  *
 792  * Get interface index
 793  */
 794 int connman_ipconfig_get_index(struct connman_ipconfig *ipconfig)
 795 {
 796         if (ipconfig->origin != NULL)
 797                 return ipconfig->origin->index;
 798
 799         return ipconfig->index;
 800 }
 801
 802 /**
 803  * connman_ipconfig_get_ifname:
 804  * @ipconfig: ipconfig structure
 805  *
 806  * Get interface name
 807  */
 808 const char *connman_ipconfig_get_ifname(struct connman_ipconfig *ipconfig)
 809 {
 810         struct connman_ipdevice *ipdevice;
 811
 812         if (ipconfig->index < 0)
 813                 return NULL;
 814
 815         ipdevice = g_hash_table_lookup(ipdevice_hash,
 816                                         GINT_TO_POINTER(ipconfig->index));
 817         if (ipdevice == NULL)
 818                 return NULL;
 819
 820         return ipdevice->ifname;
 821 }
 822
 823 /**
 824  * connman_ipconfig_set_ops:
 825  * @ipconfig: ipconfig structure
 826  * @ops: operation callbacks
 827  *
 828  * Set the operation callbacks
 829  */
 830 void connman_ipconfig_set_ops(struct connman_ipconfig *ipconfig,
 831                                 const struct connman_ipconfig_ops *ops)
 832 {
 833         if (ipconfig->ops != NULL)
 834                 ipconfig_list = g_list_remove(ipconfig_list, ipconfig);
 835
 836         ipconfig->ops = ops;
 837
 838         if (ops != NULL)
 839                 ipconfig_list = g_list_append(ipconfig_list, ipconfig);
 840 }
 841
 842 /**
 843  * connman_ipconfig_set_method:
 844  * @ipconfig: ipconfig structure
 845  * @method: configuration method
 846  *
 847  * Set the configuration method
 848  */
 849 int connman_ipconfig_set_method(struct connman_ipconfig *ipconfig,
 850                                         enum connman_ipconfig_method method)
 851 {
 852         ipconfig->method = method;
 853
 854         return 0;
 855 }
 856
 857 /**
 858  * connman_ipconfig_bind:
 859  * @ipconfig: ipconfig structure
 860  * @ipaddress: ipaddress structure
 861  *
 862  * Bind IP address details to configuration
 863  */
 864 void connman_ipconfig_bind(struct connman_ipconfig *ipconfig,
 865                                         struct connman_ipaddress *ipaddress)
 866 {
 867         struct connman_ipconfig *origin;
 868
 869         origin = ipconfig->origin ? ipconfig->origin : ipconfig;
 870
 871         connman_ipaddress_copy(origin->address, ipaddress);
 872
 873         connman_inet_set_address(origin->index, origin->address);
 874 }
 875
 876 int __connman_ipconfig_enable(struct connman_ipconfig *ipconfig)
 877 {
 878         struct connman_ipdevice *ipdevice;
 879
 880         DBG("ipconfig %p", ipconfig);
 881
 882         if (ipconfig == NULL || ipconfig->index < 0)
 883                 return -ENODEV;
 884
 885         ipdevice = g_hash_table_lookup(ipdevice_hash,
 886                                         GINT_TO_POINTER(ipconfig->index));
 887         if (ipdevice == NULL)
 888                 return -ENXIO;
 889
 890         if (ipdevice->config != NULL) {
 891                 connman_ipaddress_clear(ipdevice->config->system);
 892
 893                 connman_ipconfig_unref(ipdevice->config);
 894         }
 895
 896         ipdevice->config = connman_ipconfig_ref(ipconfig);
 897
 898         return 0;
 899 }
 900
 901 int __connman_ipconfig_disable(struct connman_ipconfig *ipconfig)
 902 {
 903         struct connman_ipdevice *ipdevice;
 904
 905         DBG("ipconfig %p", ipconfig);
 906
 907         if (ipconfig == NULL || ipconfig->index < 0)
 908                 return -ENODEV;
 909
 910         ipdevice = g_hash_table_lookup(ipdevice_hash,
 911                                         GINT_TO_POINTER(ipconfig->index));
 912         if (ipdevice == NULL)
 913                 return -ENXIO;
 914
 915         if (ipdevice->config == NULL || ipdevice->config != ipconfig)
 916                 return -EINVAL;
 917
 918         connman_ipaddress_clear(ipdevice->config->system);
 919
 920         connman_ipconfig_unref(ipdevice->config);
 921         ipdevice->config = NULL;
 922
 923         return 0;
 924 }
 925
 926 const char *__connman_ipconfig_method2string(enum connman_ipconfig_method method)
 927 {
 928         switch (method) {
 929         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
 930                 break;
 931         case CONNMAN_IPCONFIG_METHOD_OFF:
 932                 return "off";
 933         case CONNMAN_IPCONFIG_METHOD_FIXED:
 934                 return "fixed";
 935         case CONNMAN_IPCONFIG_METHOD_MANUAL:
 936                 return "manual";
 937         case CONNMAN_IPCONFIG_METHOD_DHCP:
 938                 return "dhcp";
 939         }
 940
 941         return NULL;
 942 }
 943
 944 enum connman_ipconfig_method __connman_ipconfig_string2method(const char *method)
 945 {
 946         if (g_strcmp0(method, "off") == 0)
 947                 return CONNMAN_IPCONFIG_METHOD_OFF;
 948         else if (g_strcmp0(method, "fixed") == 0)
 949                 return CONNMAN_IPCONFIG_METHOD_FIXED;
 950         else if (g_strcmp0(method, "manual") == 0)
 951                 return CONNMAN_IPCONFIG_METHOD_MANUAL;
 952         else if (g_strcmp0(method, "dhcp") == 0)
 953                 return CONNMAN_IPCONFIG_METHOD_DHCP;
 954         else
 955                 return CONNMAN_IPCONFIG_METHOD_UNKNOWN;
 956 }
 957
 958 void __connman_ipconfig_append_ipv4(struct connman_ipconfig *ipconfig,
 959                                                         DBusMessageIter *iter)
 960 {
 961         const char *str;
 962
 963         str = __connman_ipconfig_method2string(ipconfig->method);
 964         if (str == NULL)
 965                 return;
 966
 967         connman_dbus_dict_append_basic(iter, "Method", DBUS_TYPE_STRING, &str);
 968
 969         if (ipconfig->system == NULL)
 970                 return;
 971
 972         if (ipconfig->system->local != NULL) {
 973                 in_addr_t addr;
 974                 struct in_addr netmask;
 975                 char *mask;
 976
 977                 connman_dbus_dict_append_basic(iter, "Address",
 978                                 DBUS_TYPE_STRING, &ipconfig->system->local);
 979
 980                 addr = 0xffffffff << (32 - ipconfig->system->prefixlen);
 981                 netmask.s_addr = htonl(addr);
 982                 mask = inet_ntoa(netmask);
 983                 connman_dbus_dict_append_basic(iter, "Netmask",
 984                                                 DBUS_TYPE_STRING, &mask);
 985         }
 986 }
 987
 988 void __connman_ipconfig_append_ipv4config(struct connman_ipconfig *ipconfig,
 989                                                         DBusMessageIter *iter)
 990 {
 991         const char *str;
 992
 993         str = __connman_ipconfig_method2string(ipconfig->method);
 994         if (str == NULL)
 995                 return;
 996
 997         connman_dbus_dict_append_basic(iter, "Method", DBUS_TYPE_STRING, &str);
 998
 999         switch (ipconfig->method) {
1000         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
1001         case CONNMAN_IPCONFIG_METHOD_OFF:
1002         case CONNMAN_IPCONFIG_METHOD_FIXED:
1003         case CONNMAN_IPCONFIG_METHOD_DHCP:
1004                 return;
1005         case CONNMAN_IPCONFIG_METHOD_MANUAL:
1006                 break;
1007         }
1008
1009         if (ipconfig->address == NULL)
1010                 return;
1011
1012         if (ipconfig->address->local != NULL) {
1013                 in_addr_t addr;
1014                 struct in_addr netmask;
1015                 char *mask;
1016
1017                 connman_dbus_dict_append_basic(iter, "Address",
1018                                 DBUS_TYPE_STRING, &ipconfig->address->local);
1019
1020                 addr = 0xffffffff << (32 - ipconfig->address->prefixlen);
1021                 netmask.s_addr = htonl(addr);
1022                 mask = inet_ntoa(netmask);
1023                 connman_dbus_dict_append_basic(iter, "Netmask",
1024                                                 DBUS_TYPE_STRING, &mask);
1025         }
1026 }
1027
1028 int __connman_ipconfig_set_ipv4config(struct connman_ipconfig *ipconfig,
1029                                                         DBusMessageIter *array)
1030 {
1031         enum connman_ipconfig_method method = CONNMAN_IPCONFIG_METHOD_UNKNOWN;
1032         const char *address = NULL, *netmask = NULL;
1033         DBusMessageIter dict;
1034
1035         DBG("ipconfig %p", ipconfig);
1036
1037         if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY)
1038                 return -EINVAL;
1039
1040         dbus_message_iter_recurse(array, &dict);
1041
1042         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1043                 DBusMessageIter entry;
1044                 const char *key;
1045                 int type;
1046
1047                 dbus_message_iter_recurse(&dict, &entry);
1048
1049                 if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
1050                         return -EINVAL;
1051
1052                 dbus_message_iter_get_basic(&entry, &key);
1053                 dbus_message_iter_next(&entry);
1054
1055                 type = dbus_message_iter_get_arg_type(&entry);
1056
1057                 if (g_str_equal(key, "Method") == TRUE) {
1058                         const char *str;
1059
1060                         if (type != DBUS_TYPE_STRING)
1061                                 return -EINVAL;
1062
1063                         dbus_message_iter_get_basic(&entry, &str);
1064                         method = __connman_ipconfig_string2method(str);
1065                 } else if (g_str_equal(key, "Address") == TRUE) {
1066                         if (type != DBUS_TYPE_STRING)
1067                                 return -EINVAL;
1068
1069                         dbus_message_iter_get_basic(&entry, &address);
1070                 } else if (g_str_equal(key, "Netmask") == TRUE) {
1071                         if (type != DBUS_TYPE_STRING)
1072                                 return -EINVAL;
1073
1074                         dbus_message_iter_get_basic(&entry, &netmask);
1075                 }
1076
1077                 dbus_message_iter_next(&dict);
1078         }
1079
1080         DBG("method %d address %s netmask %s", method, address, netmask);
1081
1082         switch (method) {
1083         case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
1084         case CONNMAN_IPCONFIG_METHOD_OFF:
1085         case CONNMAN_IPCONFIG_METHOD_FIXED:
1086                 return -EINVAL;
1087
1088         case CONNMAN_IPCONFIG_METHOD_MANUAL:
1089                 if (address == NULL)
1090                         return -EINVAL;
1091
1092                 ipconfig->method = method;
1093                 connman_ipaddress_set(ipconfig->address, address, netmask);
1094                 break;
1095
1096         case CONNMAN_IPCONFIG_METHOD_DHCP:
1097                 if (ipconfig->method == method)
1098                         return 0;
1099
1100                 ipconfig->method = method;
1101                 break;
1102         }
1103
1104         return 0;
1105 }
1106
1107 int __connman_ipconfig_append_ethernet(struct connman_ipconfig *ipconfig,
1108                                                         DBusMessageIter *iter)
1109 {
1110         const char *method = "auto";
1111
1112         connman_dbus_dict_append_basic(iter, "Method",
1113                                                 DBUS_TYPE_STRING, &method);
1114
1115         if (ipconfig->eth != NULL)
1116                 connman_dbus_dict_append_basic(iter, "Address",
1117                                         DBUS_TYPE_STRING, &ipconfig->eth);
1118
1119         if (ipconfig->mtu > 0)
1120                 connman_dbus_dict_append_basic(iter, "MTU",
1121                                         DBUS_TYPE_UINT16, &ipconfig->mtu);
1122
1123         return 0;
1124 }
1125
1126 int __connman_ipconfig_load(struct connman_ipconfig *ipconfig,
1127                 GKeyFile *keyfile, const char *identifier, const char *prefix)
1128 {
1129         DBG("ipconfig %p identifier %s", ipconfig, identifier);
1130
1131         return 0;
1132 }
1133
1134 int __connman_ipconfig_save(struct connman_ipconfig *ipconfig,
1135                 GKeyFile *keyfile, const char *identifier, const char *prefix)
1136 {
1137         DBG("ipconfig %p identifier %s", ipconfig, identifier);
1138
1139         return 0;
1140 }
1141
1142 int __connman_ipconfig_init(void)
1143 {
1144         DBG("");
1145
1146         ipdevice_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1147                                                         NULL, free_ipdevice);
1148
1149         return 0;
1150 }
1151
1152 void __connman_ipconfig_cleanup(void)
1153 {
1154         DBG("");
1155
1156         g_hash_table_destroy(ipdevice_hash);
1157         ipdevice_hash = NULL;
1158 }