src/rtnl.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2013  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <stdio.h>
  28 #include <unistd.h>
  29 #include <string.h>
  30 #include <sys/socket.h>
  31 #include <sys/ioctl.h>
  32 #include <arpa/inet.h>
  33 #include <netinet/ether.h>
  34 #include <netinet/icmp6.h>
  35 #include <net/if_arp.h>
  36 #include <linux/if.h>
  37 #include <linux/netlink.h>
  38 #include <linux/rtnetlink.h>
  39 #include <linux/wireless.h>
  40
  41 #include <glib.h>
  42
  43 #include "connman.h"
  44
  45 #ifndef ARPHDR_PHONET_PIPE
  46 #define ARPHDR_PHONET_PIPE (821)
  47 #endif
  48
  49 #if defined TIZEN_EXT
  50 #ifndef ARPHDR_RMNET
  51 #define ARPHDR_RMNET (530)
  52 #endif
  53 #endif
  54
  55 #define print(arg...) do { if (0) connman_info(arg); } while (0)
  56 //#define print(arg...) connman_info(arg)
  57
  58 struct watch_data {
  59         unsigned int id;
  60         int index;
  61         connman_rtnl_link_cb_t newlink;
  62         void *user_data;
  63 };
  64
  65 static GSList *watch_list = NULL;
  66 static unsigned int watch_id = 0;
  67
  68 static GSList *update_list = NULL;
  69 static guint update_interval = G_MAXUINT;
  70 static guint update_timeout = 0;
  71
  72 struct interface_data {
  73         int index;
  74         char *ident;
  75         enum connman_service_type service_type;
  76         enum connman_device_type device_type;
  77 };
  78
  79 static GHashTable *interface_list = NULL;
  80
  81 static void free_interface(gpointer data)
  82 {
  83         struct interface_data *interface = data;
  84
  85         __connman_technology_remove_interface(interface->service_type,
  86                         interface->index, interface->ident);
  87
  88         g_free(interface->ident);
  89         g_free(interface);
  90 }
  91
  92 static bool ether_blacklisted(const char *name)
  93 {
  94         if (!name)
  95                 return true;
  96
  97         if (__connman_device_isfiltered(name))
  98                 return true;
  99
 100         return false;
 101 }
 102
 103 #if !defined TIZEN_EXT
 104 static bool wext_interface(char *ifname)
 105 {
 106         struct iwreq wrq;
 107         int fd, err;
 108
 109         fd = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
 110         if (fd < 0)
 111                 return false;
 112
 113         memset(&wrq, 0, sizeof(wrq));
 114         strncpy(wrq.ifr_name, ifname, sizeof(wrq.ifr_name) - 1);
 115
 116         err = ioctl(fd, SIOCGIWNAME, &wrq);
 117
 118         close(fd);
 119
 120         if (err < 0)
 121                 return false;
 122
 123         return true;
 124 }
 125 #endif
 126
 127 #if defined TIZEN_EXT
 128 static bool __connman_rtnl_is_cellular_device(const char *name)
 129 {
 130         char **pattern;
 131         char **cellular_interfaces;
 132
 133         cellular_interfaces =
 134                         connman_setting_get_string_list(
 135                                         "NetworkCellularInterfaceList");
 136         if (!cellular_interfaces)
 137                 return false;
 138
 139         for (pattern = cellular_interfaces; *pattern; pattern++) {
 140                 if (g_str_has_prefix(name, *pattern)) {
 141                         DBG("Cellular interface: %s", name);
 142                         return true;
 143                 }
 144         }
 145
 146         return false;
 147 }
 148 #endif
 149
 150 static void read_uevent(struct interface_data *interface)
 151 {
 152         char *filename, *name, line[128];
 153         bool found_devtype;
 154         FILE *f;
 155
 156         name = connman_inet_ifname(interface->index);
 157
 158 #if defined TIZEN_EXT
 159         if (__connman_rtnl_is_cellular_device(name)) {
 160                 interface->service_type = CONNMAN_SERVICE_TYPE_CELLULAR;
 161                 interface->device_type = CONNMAN_DEVICE_TYPE_CELLULAR;
 162                 return;
 163         }
 164 #endif
 165
 166         if (ether_blacklisted(name)) {
 167                 interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
 168                 interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
 169         } else {
 170                 interface->service_type = CONNMAN_SERVICE_TYPE_ETHERNET;
 171                 interface->device_type = CONNMAN_DEVICE_TYPE_ETHERNET;
 172         }
 173
 174         filename = g_strdup_printf("/sys/class/net/%s/uevent", name);
 175
 176         f = fopen(filename, "re");
 177
 178         g_free(filename);
 179
 180         if (!f) {
 181                 interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
 182                 interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
 183                 goto out;
 184         }
 185
 186         found_devtype = false;
 187         while (fgets(line, sizeof(line), f)) {
 188                 char *pos;
 189
 190                 pos = strchr(line, '\n');
 191                 if (!pos)
 192                         continue;
 193                 pos[0] = '\0';
 194
 195                 if (strncmp(line, "DEVTYPE=", 8) != 0)
 196                         continue;
 197
 198                 found_devtype = true;
 199
 200                 if (strcmp(line + 8, "wlan") == 0) {
 201                         interface->service_type = CONNMAN_SERVICE_TYPE_WIFI;
 202                         interface->device_type = CONNMAN_DEVICE_TYPE_WIFI;
 203                 } else if (strcmp(line + 8, "wwan") == 0) {
 204                         interface->service_type = CONNMAN_SERVICE_TYPE_CELLULAR;
 205                         interface->device_type = CONNMAN_DEVICE_TYPE_CELLULAR;
 206                 } else if (strcmp(line + 8, "bluetooth") == 0) {
 207                         interface->service_type = CONNMAN_SERVICE_TYPE_BLUETOOTH;
 208                         interface->device_type = CONNMAN_DEVICE_TYPE_BLUETOOTH;
 209                 } else if (strcmp(line + 8, "gadget") == 0) {
 210                         interface->service_type = CONNMAN_SERVICE_TYPE_GADGET;
 211                         interface->device_type = CONNMAN_DEVICE_TYPE_GADGET;
 212                 } else if (strcmp(line + 8, "vlan") == 0) {
 213                         interface->service_type = CONNMAN_SERVICE_TYPE_ETHERNET;
 214                         interface->device_type = CONNMAN_DEVICE_TYPE_ETHERNET;
 215                 } else if (strcmp(line + 8, "bond") == 0) {
 216                         interface->service_type = CONNMAN_SERVICE_TYPE_ETHERNET;
 217                         interface->device_type = CONNMAN_DEVICE_TYPE_ETHERNET;
 218                 } else {
 219                         interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
 220                         interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
 221                 }
 222         }
 223
 224         fclose(f);
 225
 226         if (found_devtype)
 227                 goto out;
 228
 229 #if !defined TIZEN_EXT
 230         /* TIZEN does not use old wext interface */
 231         /* We haven't got a DEVTYPE, let's check if it's a wireless device */
 232         if (wext_interface(name)) {
 233                 interface->service_type = CONNMAN_SERVICE_TYPE_WIFI;
 234                 interface->device_type = CONNMAN_DEVICE_TYPE_WIFI;
 235
 236                 connman_error("%s runs an unsupported 802.11 driver", name);
 237         }
 238 #endif
 239
 240 out:
 241         g_free(name);
 242 }
 243
 244 enum connman_device_type __connman_rtnl_get_device_type(int index)
 245 {
 246         struct interface_data *interface;
 247
 248         interface = g_hash_table_lookup(interface_list,
 249                                         GINT_TO_POINTER(index));
 250         if (!interface)
 251                 return CONNMAN_DEVICE_TYPE_UNKNOWN;
 252
 253         return interface->device_type;
 254 }
 255
 256 /**
 257  * connman_rtnl_add_newlink_watch:
 258  * @index: network device index
 259  * @callback: callback function
 260  * @user_data: callback data;
 261  *
 262  * Add a new RTNL watch for newlink events
 263  *
 264  * Returns: %0 on failure and a unique id on success
 265  */
 266 unsigned int connman_rtnl_add_newlink_watch(int index,
 267                         connman_rtnl_link_cb_t callback, void *user_data)
 268 {
 269         struct watch_data *watch;
 270
 271         watch = g_try_new0(struct watch_data, 1);
 272         if (!watch)
 273                 return 0;
 274
 275         watch->id = ++watch_id;
 276         watch->index = index;
 277
 278         watch->newlink = callback;
 279         watch->user_data = user_data;
 280
 281         watch_list = g_slist_prepend(watch_list, watch);
 282
 283         DBG("id %d", watch->id);
 284
 285         if (callback) {
 286                 unsigned int flags = __connman_ipconfig_get_flags_from_index(index);
 287
 288                 if (flags > 0)
 289                         callback(flags, 0, user_data);
 290         }
 291
 292         return watch->id;
 293 }
 294
 295 /**
 296  * connman_rtnl_remove_watch:
 297  * @id: watch identifier
 298  *
 299  * Remove the RTNL watch for the identifier
 300  */
 301 void connman_rtnl_remove_watch(unsigned int id)
 302 {
 303         GSList *list;
 304
 305         DBG("id %d", id);
 306
 307         if (id == 0)
 308                 return;
 309
 310         for (list = watch_list; list; list = list->next) {
 311                 struct watch_data *watch = list->data;
 312
 313                 if (watch->id  == id) {
 314                         watch_list = g_slist_remove(watch_list, watch);
 315                         g_free(watch);
 316                         break;
 317                 }
 318         }
 319 }
 320
 321 static void trigger_rtnl(int index, void *user_data)
 322 {
 323         struct connman_rtnl *rtnl = user_data;
 324
 325         if (rtnl->newlink) {
 326                 unsigned short type = __connman_ipconfig_get_type_from_index(index);
 327                 unsigned int flags = __connman_ipconfig_get_flags_from_index(index);
 328
 329                 rtnl->newlink(type, index, flags, 0);
 330         }
 331
 332         if (rtnl->newgateway) {
 333                 const char *gateway =
 334                         __connman_ipconfig_get_gateway_from_index(index,
 335                                         CONNMAN_IPCONFIG_TYPE_ALL);
 336
 337                 if (gateway)
 338                         rtnl->newgateway(index, gateway);
 339         }
 340 }
 341
 342 static GSList *rtnl_list = NULL;
 343
 344 static gint compare_priority(gconstpointer a, gconstpointer b)
 345 {
 346         const struct connman_rtnl *rtnl1 = a;
 347         const struct connman_rtnl *rtnl2 = b;
 348
 349         return rtnl2->priority - rtnl1->priority;
 350 }
 351
 352 /**
 353  * connman_rtnl_register:
 354  * @rtnl: RTNL module
 355  *
 356  * Register a new RTNL module
 357  *
 358  * Returns: %0 on success
 359  */
 360 int connman_rtnl_register(struct connman_rtnl *rtnl)
 361 {
 362         DBG("rtnl %p name %s", rtnl, rtnl->name);
 363
 364         rtnl_list = g_slist_insert_sorted(rtnl_list, rtnl,
 365                                                         compare_priority);
 366
 367         __connman_ipconfig_foreach(trigger_rtnl, rtnl);
 368
 369         return 0;
 370 }
 371
 372 /**
 373  * connman_rtnl_unregister:
 374  * @rtnl: RTNL module
 375  *
 376  * Remove a previously registered RTNL module
 377  */
 378 void connman_rtnl_unregister(struct connman_rtnl *rtnl)
 379 {
 380         DBG("rtnl %p name %s", rtnl, rtnl->name);
 381
 382         rtnl_list = g_slist_remove(rtnl_list, rtnl);
 383 }
 384
 385 static const char *operstate2str(unsigned char operstate)
 386 {
 387         switch (operstate) {
 388         case IF_OPER_UNKNOWN:
 389                 return "UNKNOWN";
 390         case IF_OPER_NOTPRESENT:
 391                 return "NOT-PRESENT";
 392         case IF_OPER_DOWN:
 393                 return "DOWN";
 394         case IF_OPER_LOWERLAYERDOWN:
 395                 return "LOWER-LAYER-DOWN";
 396         case IF_OPER_TESTING:
 397                 return "TESTING";
 398         case IF_OPER_DORMANT:
 399                 return "DORMANT";
 400         case IF_OPER_UP:
 401                 return "UP";
 402         }
 403
 404         return "";
 405 }
 406
 407 static bool extract_link(struct ifinfomsg *msg, int bytes,
 408                                 struct ether_addr *address, const char **ifname,
 409                                 unsigned int *mtu, unsigned char *operstate,
 410                                 struct rtnl_link_stats *stats)
 411 {
 412         struct rtattr *attr;
 413
 414         for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
 415                                         attr = RTA_NEXT(attr, bytes)) {
 416                 switch (attr->rta_type) {
 417                 case IFLA_ADDRESS:
 418                         if (address)
 419                                 memcpy(address, RTA_DATA(attr), ETH_ALEN);
 420                         break;
 421                 case IFLA_IFNAME:
 422                         if (ifname)
 423                                 *ifname = RTA_DATA(attr);
 424                         break;
 425                 case IFLA_MTU:
 426                         if (mtu)
 427                                 *mtu = *((unsigned int *) RTA_DATA(attr));
 428                         break;
 429                 case IFLA_STATS:
 430                         if (stats)
 431                                 memcpy(stats, RTA_DATA(attr),
 432                                         sizeof(struct rtnl_link_stats));
 433                         break;
 434                 case IFLA_OPERSTATE:
 435                         if (operstate)
 436                                 *operstate = *((unsigned char *) RTA_DATA(attr));
 437                         break;
 438                 case IFLA_LINKMODE:
 439                         break;
 440                 case IFLA_WIRELESS:
 441                         return false;
 442                 }
 443         }
 444
 445         return true;
 446 }
 447
 448 static void process_newlink(unsigned short type, int index, unsigned flags,
 449                         unsigned change, struct ifinfomsg *msg, int bytes)
 450 {
 451         struct ether_addr address = {{ 0, 0, 0, 0, 0, 0 }};
 452         struct rtnl_link_stats stats;
 453         unsigned char operstate = 0xff;
 454         struct interface_data *interface;
 455         const char *ifname = NULL;
 456         unsigned int mtu = 0;
 457         char ident[13], str[18];
 458         GSList *list;
 459
 460         memset(&stats, 0, sizeof(stats));
 461         if (!extract_link(msg, bytes, &address, &ifname, &mtu, &operstate, &stats))
 462                 return;
 463
 464 #if defined TIZEN_EXT
 465         /* Do not accept Wi-Fi P2P interface */
 466         if (g_strrstr(ifname, "p2p") != NULL) {
 467                 DBG("Newlink event for Wi-Fi P2P interface ignored");
 468                 return;
 469         }
 470 #endif
 471
 472         snprintf(ident, 13, "%02x%02x%02x%02x%02x%02x",
 473                                                 address.ether_addr_octet[0],
 474                                                 address.ether_addr_octet[1],
 475                                                 address.ether_addr_octet[2],
 476                                                 address.ether_addr_octet[3],
 477                                                 address.ether_addr_octet[4],
 478                                                 address.ether_addr_octet[5]);
 479
 480         snprintf(str, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
 481                                                 address.ether_addr_octet[0],
 482                                                 address.ether_addr_octet[1],
 483                                                 address.ether_addr_octet[2],
 484                                                 address.ether_addr_octet[3],
 485                                                 address.ether_addr_octet[4],
 486                                                 address.ether_addr_octet[5]);
 487
 488         if (flags & IFF_SLAVE) {
 489                 connman_info("%s {newlink} ignoring slave, index %d address %s",
 490                                                 ifname, index, str);
 491                 return;
 492         }
 493
 494 #ifdef TIZEN_EXT
 495         if (TIZEN_TV_EXT && g_strcmp0(ident, "eeeeeeeeeeee") == 0) {
 496                 DBG("Newlink event with Dummy MAC. Ignored!");
 497                 return;
 498         }
 499 #endif
 500
 501         switch (type) {
 502         case ARPHRD_ETHER:
 503         case ARPHRD_LOOPBACK:
 504         case ARPHDR_PHONET_PIPE:
 505         case ARPHRD_PPP:
 506         case ARPHRD_NONE:
 507 #if defined TIZEN_EXT
 508 /*
 509  * Description: ARPHDR_RMNET for QC modem using QMI
 510  */
 511         case ARPHDR_RMNET:
 512 #endif
 513                 __connman_ipconfig_newlink(index, type, flags,
 514                                                         str, mtu, &stats);
 515                 break;
 516         }
 517
 518         connman_info("%s {newlink} index %d address %s mtu %u",
 519                                         ifname, index, str, mtu);
 520
 521         if (operstate != 0xff)
 522                 connman_info("%s {newlink} index %d operstate %u <%s>",
 523                                                 ifname, index, operstate,
 524                                                 operstate2str(operstate));
 525
 526         interface = g_hash_table_lookup(interface_list, GINT_TO_POINTER(index));
 527         if (!interface) {
 528                 interface = g_new0(struct interface_data, 1);
 529                 interface->index = index;
 530                 interface->ident = g_strdup(ident);
 531
 532                 g_hash_table_insert(interface_list,
 533                                         GINT_TO_POINTER(index), interface);
 534
 535                 if (type == ARPHRD_ETHER)
 536                         read_uevent(interface);
 537 #if defined TIZEN_EXT
 538                 if (type == ARPHRD_PPP || type == ARPHDR_RMNET)
 539                         read_uevent(interface);
 540
 541         } else if (g_strcmp0(interface->ident, ident) != 0) {
 542                 /* If an original address is built-in physical device,
 543                  * it's hardly get an address at a initial creation
 544                  */
 545                 __connman_technology_remove_interface(interface->service_type,
 546                                 interface->index, interface->ident);
 547
 548                 g_free(interface->ident);
 549                 interface->ident = g_strdup(ident);
 550
 551                 __connman_technology_add_interface(interface->service_type,
 552                                 interface->index, interface->ident);
 553
 554                 interface = NULL;
 555 #endif
 556         } else if (type == ARPHRD_ETHER && interface->device_type == CONNMAN_DEVICE_TYPE_UNKNOWN)
 557                 read_uevent(interface);
 558         else
 559                 interface = NULL;
 560
 561         for (list = rtnl_list; list; list = list->next) {
 562                 struct connman_rtnl *rtnl = list->data;
 563
 564                 if (rtnl->newlink)
 565                         rtnl->newlink(type, index, flags, change);
 566         }
 567
 568         /*
 569          * The interface needs to be added after the newlink call.
 570          * The newlink will create the technology when needed and
 571          * __connman_technology_add_interface() expects the
 572          * technology to be there already.
 573          */
 574         if (interface)
 575                 __connman_technology_add_interface(interface->service_type,
 576                         interface->index, interface->ident);
 577
 578         for (list = watch_list; list; list = list->next) {
 579                 struct watch_data *watch = list->data;
 580
 581                 if (watch->index != index)
 582                         continue;
 583
 584                 if (watch->newlink)
 585                         watch->newlink(flags, change, watch->user_data);
 586         }
 587 }
 588
 589 static void process_dellink(unsigned short type, int index, unsigned flags,
 590                         unsigned change, struct ifinfomsg *msg, int bytes)
 591 {
 592         struct rtnl_link_stats stats;
 593         unsigned char operstate = 0xff;
 594         const char *ifname = NULL;
 595         GSList *list;
 596
 597         memset(&stats, 0, sizeof(stats));
 598         if (!extract_link(msg, bytes, NULL, &ifname, NULL, &operstate, &stats))
 599                 return;
 600
 601         if (operstate != 0xff)
 602                 connman_info("%s {dellink} index %d operstate %u <%s>",
 603                                                 ifname, index, operstate,
 604                                                 operstate2str(operstate));
 605
 606         for (list = rtnl_list; list; list = list->next) {
 607                 struct connman_rtnl *rtnl = list->data;
 608
 609                 if (rtnl->dellink)
 610                         rtnl->dellink(type, index, flags, change);
 611         }
 612
 613         switch (type) {
 614         case ARPHRD_ETHER:
 615         case ARPHRD_LOOPBACK:
 616         case ARPHDR_PHONET_PIPE:
 617         case ARPHRD_PPP:
 618         case ARPHRD_NONE:
 619 #if defined TIZEN_EXT
 620         /*
 621          * Description: SLP requires ARPHRD_PPP for PPP type device
 622          *              ARPHDR_RMNET for QC modem using QMI
 623          */
 624         case ARPHDR_RMNET:
 625 #endif
 626                 __connman_ipconfig_dellink(index, &stats);
 627                 break;
 628         }
 629
 630         g_hash_table_remove(interface_list, GINT_TO_POINTER(index));
 631 }
 632
 633 static void extract_ipv4_addr(struct ifaddrmsg *msg, int bytes,
 634                                                 const char **label,
 635                                                 struct in_addr *local,
 636                                                 struct in_addr *address,
 637                                                 struct in_addr *broadcast)
 638 {
 639         struct rtattr *attr;
 640
 641         for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
 642                                         attr = RTA_NEXT(attr, bytes)) {
 643                 switch (attr->rta_type) {
 644                 case IFA_ADDRESS:
 645                         if (address)
 646                                 *address = *((struct in_addr *) RTA_DATA(attr));
 647                         break;
 648                 case IFA_LOCAL:
 649                         if (local)
 650                                 *local = *((struct in_addr *) RTA_DATA(attr));
 651                         break;
 652                 case IFA_BROADCAST:
 653                         if (broadcast)
 654                                 *broadcast = *((struct in_addr *) RTA_DATA(attr));
 655                         break;
 656                 case IFA_LABEL:
 657                         if (label)
 658                                 *label = RTA_DATA(attr);
 659                         break;
 660                 }
 661         }
 662 }
 663
 664 static void extract_ipv6_addr(struct ifaddrmsg *msg, int bytes,
 665                                                 struct in6_addr *addr,
 666                                                 struct in6_addr *local)
 667 {
 668         struct rtattr *attr;
 669
 670         for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
 671                                         attr = RTA_NEXT(attr, bytes)) {
 672                 switch (attr->rta_type) {
 673                 case IFA_ADDRESS:
 674                         if (addr)
 675                                 *addr = *((struct in6_addr *) RTA_DATA(attr));
 676                         break;
 677                 case IFA_LOCAL:
 678                         if (local)
 679                                 *local = *((struct in6_addr *) RTA_DATA(attr));
 680                         break;
 681                 }
 682         }
 683 }
 684
 685 static void process_newaddr(unsigned char family, unsigned char prefixlen,
 686                                 int index, struct ifaddrmsg *msg, int bytes)
 687 {
 688         struct in_addr ipv4_addr = { INADDR_ANY };
 689         struct in6_addr ipv6_address, ipv6_local;
 690         const char *label = NULL;
 691         void *src;
 692         char ip_string[INET6_ADDRSTRLEN];
 693
 694         if (family == AF_INET) {
 695
 696                 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
 697                 src = &ipv4_addr;
 698         } else if (family == AF_INET6) {
 699                 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
 700                 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
 701                         return;
 702
 703                 src = &ipv6_address;
 704         } else {
 705                 return;
 706         }
 707
 708         if (!inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN))
 709                 return;
 710
 711         if (__connman_ipconfig_newaddr(index, family, label,
 712                                         prefixlen, ip_string) >= 0) {
 713                 if (family == AF_INET6) {
 714                         /*
 715                          * Re-create RDNSS configured servers if there
 716                          * are any for this interface. This is done
 717                          * because we might have now properly
 718                          * configured interface with proper
 719                          * autoconfigured address.
 720                          */
 721                         __connman_resolver_redo_servers(index);
 722                 }
 723         }
 724 }
 725
 726 static void process_deladdr(unsigned char family, unsigned char prefixlen,
 727                                 int index, struct ifaddrmsg *msg, int bytes)
 728 {
 729         struct in_addr ipv4_addr = { INADDR_ANY };
 730         struct in6_addr ipv6_address, ipv6_local;
 731         const char *label = NULL;
 732         void *src;
 733         char ip_string[INET6_ADDRSTRLEN];
 734
 735         if (family == AF_INET) {
 736                 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
 737                 src = &ipv4_addr;
 738         } else if (family == AF_INET6) {
 739                 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
 740                 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
 741                         return;
 742
 743                 src = &ipv6_address;
 744         } else {
 745                 return;
 746         }
 747
 748         if (!inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN))
 749                 return;
 750
 751         __connman_ipconfig_deladdr(index, family, label,
 752                                         prefixlen, ip_string);
 753 }
 754
 755 static void extract_ipv4_route(struct rtmsg *msg, int bytes, int *index,
 756                                                 struct in_addr *dst,
 757                                                 struct in_addr *gateway)
 758 {
 759         struct rtattr *attr;
 760
 761         for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
 762                                         attr = RTA_NEXT(attr, bytes)) {
 763                 switch (attr->rta_type) {
 764                 case RTA_DST:
 765                         if (dst)
 766                                 *dst = *((struct in_addr *) RTA_DATA(attr));
 767                         break;
 768                 case RTA_GATEWAY:
 769                         if (gateway)
 770                                 *gateway = *((struct in_addr *) RTA_DATA(attr));
 771                         break;
 772                 case RTA_OIF:
 773                         if (index)
 774                                 *index = *((int *) RTA_DATA(attr));
 775                         break;
 776                 }
 777         }
 778 }
 779
 780 static void extract_ipv6_route(struct rtmsg *msg, int bytes, int *index,
 781                                                 struct in6_addr *dst,
 782                                                 struct in6_addr *gateway)
 783 {
 784         struct rtattr *attr;
 785
 786         for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
 787                                         attr = RTA_NEXT(attr, bytes)) {
 788                 switch (attr->rta_type) {
 789                 case RTA_DST:
 790                         if (dst)
 791                                 *dst = *((struct in6_addr *) RTA_DATA(attr));
 792                         break;
 793                 case RTA_GATEWAY:
 794                         if (gateway)
 795                                 *gateway =
 796                                         *((struct in6_addr *) RTA_DATA(attr));
 797                         break;
 798                 case RTA_OIF:
 799                         if (index)
 800                                 *index = *((int *) RTA_DATA(attr));
 801                         break;
 802                 }
 803         }
 804 }
 805
 806 static void process_newroute(unsigned char family, unsigned char scope,
 807                                                 struct rtmsg *msg, int bytes)
 808 {
 809         GSList *list;
 810         char dststr[INET6_ADDRSTRLEN], gatewaystr[INET6_ADDRSTRLEN];
 811         int index = -1;
 812
 813         if (family == AF_INET) {
 814                 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
 815
 816                 extract_ipv4_route(msg, bytes, &index, &dst, &gateway);
 817
 818                 inet_ntop(family, &dst, dststr, sizeof(dststr));
 819                 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 820
 821                 __connman_ipconfig_newroute(index, family, scope, dststr,
 822                                                                 gatewaystr);
 823
 824                 /* skip host specific routes */
 825                 if (scope != RT_SCOPE_UNIVERSE &&
 826                         !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
 827                         return;
 828
 829                 if (dst.s_addr != INADDR_ANY)
 830                         return;
 831
 832         } else if (family == AF_INET6) {
 833                 struct in6_addr dst = IN6ADDR_ANY_INIT,
 834                                 gateway = IN6ADDR_ANY_INIT;
 835
 836                 extract_ipv6_route(msg, bytes, &index, &dst, &gateway);
 837
 838                 inet_ntop(family, &dst, dststr, sizeof(dststr));
 839                 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 840
 841                 __connman_ipconfig_newroute(index, family, scope, dststr,
 842                                                                 gatewaystr);
 843
 844                 /* skip host specific routes */
 845                 if (scope != RT_SCOPE_UNIVERSE &&
 846                         !(scope == RT_SCOPE_LINK &&
 847                                 IN6_IS_ADDR_UNSPECIFIED(&dst)))
 848                         return;
 849
 850                 if (!IN6_IS_ADDR_UNSPECIFIED(&dst))
 851                         return;
 852         } else
 853                 return;
 854
 855         for (list = rtnl_list; list; list = list->next) {
 856                 struct connman_rtnl *rtnl = list->data;
 857
 858                 if (rtnl->newgateway)
 859                         rtnl->newgateway(index, gatewaystr);
 860         }
 861 }
 862
 863 static void process_delroute(unsigned char family, unsigned char scope,
 864                                                 struct rtmsg *msg, int bytes)
 865 {
 866         GSList *list;
 867         char dststr[INET6_ADDRSTRLEN], gatewaystr[INET6_ADDRSTRLEN];
 868         int index = -1;
 869
 870         if (family == AF_INET) {
 871                 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
 872
 873                 extract_ipv4_route(msg, bytes, &index, &dst, &gateway);
 874
 875                 inet_ntop(family, &dst, dststr, sizeof(dststr));
 876                 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 877
 878                 __connman_ipconfig_delroute(index, family, scope, dststr,
 879                                                                 gatewaystr);
 880
 881                 /* skip host specific routes */
 882                 if (scope != RT_SCOPE_UNIVERSE &&
 883                         !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
 884                         return;
 885
 886                 if (dst.s_addr != INADDR_ANY)
 887                         return;
 888
 889         }  else if (family == AF_INET6) {
 890                 struct in6_addr dst = IN6ADDR_ANY_INIT,
 891                                 gateway = IN6ADDR_ANY_INIT;
 892
 893                 extract_ipv6_route(msg, bytes, &index, &dst, &gateway);
 894
 895                 inet_ntop(family, &dst, dststr, sizeof(dststr));
 896                 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 897
 898                 __connman_ipconfig_delroute(index, family, scope, dststr,
 899                                                 gatewaystr);
 900
 901                 /* skip host specific routes */
 902                 if (scope != RT_SCOPE_UNIVERSE &&
 903                         !(scope == RT_SCOPE_LINK &&
 904                                 IN6_IS_ADDR_UNSPECIFIED(&dst)))
 905                         return;
 906
 907                 if (!IN6_IS_ADDR_UNSPECIFIED(&dst))
 908                         return;
 909         } else
 910                 return;
 911
 912         for (list = rtnl_list; list; list = list->next) {
 913                 struct connman_rtnl *rtnl = list->data;
 914
 915                 if (rtnl->delgateway)
 916                         rtnl->delgateway(index, gatewaystr);
 917         }
 918 }
 919
 920 static inline void print_ether(struct rtattr *attr, const char *name)
 921 {
 922         int len = (int) RTA_PAYLOAD(attr);
 923
 924         if (len == ETH_ALEN) {
 925                 struct ether_addr eth;
 926                 memcpy(&eth, RTA_DATA(attr), ETH_ALEN);
 927                 print("  attr %s (len %d) %s\n", name, len, ether_ntoa(&eth));
 928         } else
 929                 print("  attr %s (len %d)\n", name, len);
 930 }
 931
 932 static inline void print_inet(struct rtattr *attr, const char *name,
 933                                                         unsigned char family)
 934 {
 935         int len = (int) RTA_PAYLOAD(attr);
 936
 937         if (family == AF_INET && len == sizeof(struct in_addr)) {
 938                 struct in_addr addr;
 939                 addr = *((struct in_addr *) RTA_DATA(attr));
 940                 print("  attr %s (len %d) %s\n", name, len, inet_ntoa(addr));
 941         } else
 942                 print("  attr %s (len %d)\n", name, len);
 943 }
 944
 945 static inline void print_string(struct rtattr *attr, const char *name)
 946 {
 947         print("  attr %s (len %d) %s\n", name, (int) RTA_PAYLOAD(attr),
 948                                                 (char *) RTA_DATA(attr));
 949 }
 950
 951 static inline void print_byte(struct rtattr *attr, const char *name)
 952 {
 953         print("  attr %s (len %d) 0x%02x\n", name, (int) RTA_PAYLOAD(attr),
 954                                         *((unsigned char *) RTA_DATA(attr)));
 955 }
 956
 957 static inline void print_integer(struct rtattr *attr, const char *name)
 958 {
 959         print("  attr %s (len %d) %d\n", name, (int) RTA_PAYLOAD(attr),
 960                                                 *((int *) RTA_DATA(attr)));
 961 }
 962
 963 static inline void print_attr(struct rtattr *attr, const char *name)
 964 {
 965         int len = (int) RTA_PAYLOAD(attr);
 966
 967         if (name && len > 0)
 968                 print("  attr %s (len %d)\n", name, len);
 969         else
 970                 print("  attr %d (len %d)\n", attr->rta_type, len);
 971 }
 972
 973 static void rtnl_link(struct nlmsghdr *hdr)
 974 {
 975         struct ifinfomsg *msg;
 976         struct rtattr *attr;
 977         int bytes;
 978
 979         msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
 980         bytes = IFLA_PAYLOAD(hdr);
 981
 982         print("ifi_index %d ifi_flags 0x%04x", msg->ifi_index, msg->ifi_flags);
 983
 984         for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
 985                                         attr = RTA_NEXT(attr, bytes)) {
 986                 switch (attr->rta_type) {
 987                 case IFLA_ADDRESS:
 988                         print_ether(attr, "address");
 989                         break;
 990                 case IFLA_BROADCAST:
 991                         print_ether(attr, "broadcast");
 992                         break;
 993                 case IFLA_IFNAME:
 994                         print_string(attr, "ifname");
 995                         break;
 996                 case IFLA_MTU:
 997                         print_integer(attr, "mtu");
 998                         break;
 999                 case IFLA_LINK:
1000                         print_attr(attr, "link");
1001                         break;
1002                 case IFLA_QDISC:
1003                         print_attr(attr, "qdisc");
1004                         break;
1005                 case IFLA_STATS:
1006                         print_attr(attr, "stats");
1007                         break;
1008                 case IFLA_COST:
1009                         print_attr(attr, "cost");
1010                         break;
1011                 case IFLA_PRIORITY:
1012                         print_attr(attr, "priority");
1013                         break;
1014                 case IFLA_MASTER:
1015                         print_attr(attr, "master");
1016                         break;
1017                 case IFLA_WIRELESS:
1018                         print_attr(attr, "wireless");
1019                         break;
1020                 case IFLA_PROTINFO:
1021                         print_attr(attr, "protinfo");
1022                         break;
1023                 case IFLA_TXQLEN:
1024                         print_integer(attr, "txqlen");
1025                         break;
1026                 case IFLA_MAP:
1027                         print_attr(attr, "map");
1028                         break;
1029                 case IFLA_WEIGHT:
1030                         print_attr(attr, "weight");
1031                         break;
1032                 case IFLA_OPERSTATE:
1033                         print_byte(attr, "operstate");
1034                         break;
1035                 case IFLA_LINKMODE:
1036                         print_byte(attr, "linkmode");
1037                         break;
1038                 default:
1039                         print_attr(attr, NULL);
1040                         break;
1041                 }
1042         }
1043 }
1044
1045 static void rtnl_newlink(struct nlmsghdr *hdr)
1046 {
1047         struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
1048
1049         rtnl_link(hdr);
1050
1051         if (hdr->nlmsg_type == IFLA_WIRELESS)
1052                 connman_warn_once("Obsolete WEXT WiFi driver detected");
1053
1054         process_newlink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
1055                                 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
1056 }
1057
1058 static void rtnl_dellink(struct nlmsghdr *hdr)
1059 {
1060         struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
1061
1062         rtnl_link(hdr);
1063
1064         process_dellink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
1065                                 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
1066 }
1067
1068 static void rtnl_addr(struct nlmsghdr *hdr)
1069 {
1070         struct ifaddrmsg *msg;
1071         struct rtattr *attr;
1072         int bytes;
1073
1074         msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
1075         bytes = IFA_PAYLOAD(hdr);
1076
1077         print("ifa_family %d ifa_index %d", msg->ifa_family, msg->ifa_index);
1078
1079         for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
1080                                         attr = RTA_NEXT(attr, bytes)) {
1081                 switch (attr->rta_type) {
1082                 case IFA_ADDRESS:
1083                         print_inet(attr, "address", msg->ifa_family);
1084                         break;
1085                 case IFA_LOCAL:
1086                         print_inet(attr, "local", msg->ifa_family);
1087                         break;
1088                 case IFA_LABEL:
1089                         print_string(attr, "label");
1090                         break;
1091                 case IFA_BROADCAST:
1092                         print_inet(attr, "broadcast", msg->ifa_family);
1093                         break;
1094                 case IFA_ANYCAST:
1095                         print_attr(attr, "anycast");
1096                         break;
1097                 case IFA_CACHEINFO:
1098                         print_attr(attr, "cacheinfo");
1099                         break;
1100                 case IFA_MULTICAST:
1101                         print_attr(attr, "multicast");
1102                         break;
1103                 default:
1104                         print_attr(attr, NULL);
1105                         break;
1106                 }
1107         }
1108 }
1109
1110 static void rtnl_newaddr(struct nlmsghdr *hdr)
1111 {
1112         struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
1113
1114         rtnl_addr(hdr);
1115
1116         process_newaddr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
1117                                                 msg, IFA_PAYLOAD(hdr));
1118 }
1119
1120 static void rtnl_deladdr(struct nlmsghdr *hdr)
1121 {
1122         struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
1123
1124         rtnl_addr(hdr);
1125
1126         process_deladdr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
1127                                                 msg, IFA_PAYLOAD(hdr));
1128 }
1129
1130 static void rtnl_route(struct nlmsghdr *hdr)
1131 {
1132         struct rtmsg *msg;
1133         struct rtattr *attr;
1134         int bytes;
1135
1136         msg = (struct rtmsg *) NLMSG_DATA(hdr);
1137         bytes = RTM_PAYLOAD(hdr);
1138
1139         print("rtm_family %d rtm_table %d rtm_protocol %d",
1140                         msg->rtm_family, msg->rtm_table, msg->rtm_protocol);
1141         print("rtm_scope %d rtm_type %d rtm_flags 0x%04x",
1142                                 msg->rtm_scope, msg->rtm_type, msg->rtm_flags);
1143
1144         for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
1145                                         attr = RTA_NEXT(attr, bytes)) {
1146                 switch (attr->rta_type) {
1147                 case RTA_DST:
1148                         print_inet(attr, "dst", msg->rtm_family);
1149                         break;
1150                 case RTA_SRC:
1151                         print_inet(attr, "src", msg->rtm_family);
1152                         break;
1153                 case RTA_IIF:
1154                         print_string(attr, "iif");
1155                         break;
1156                 case RTA_OIF:
1157                         print_integer(attr, "oif");
1158                         break;
1159                 case RTA_GATEWAY:
1160                         print_inet(attr, "gateway", msg->rtm_family);
1161                         break;
1162                 case RTA_PRIORITY:
1163                         print_attr(attr, "priority");
1164                         break;
1165                 case RTA_PREFSRC:
1166                         print_inet(attr, "prefsrc", msg->rtm_family);
1167                         break;
1168                 case RTA_METRICS:
1169                         print_attr(attr, "metrics");
1170                         break;
1171                 case RTA_TABLE:
1172                         print_integer(attr, "table");
1173                         break;
1174                 default:
1175                         print_attr(attr, NULL);
1176                         break;
1177                 }
1178         }
1179 }
1180
1181 static bool is_route_rtmsg(struct rtmsg *msg)
1182 {
1183         if (msg->rtm_flags & RTM_F_CLONED)
1184                 return false;
1185
1186         if (msg->rtm_table != RT_TABLE_MAIN)
1187                 return false;
1188
1189         if (msg->rtm_protocol != RTPROT_BOOT &&
1190                         msg->rtm_protocol != RTPROT_KERNEL)
1191                 return false;
1192
1193         if (msg->rtm_type != RTN_UNICAST)
1194                 return false;
1195
1196         return true;
1197 }
1198
1199 static void rtnl_newroute(struct nlmsghdr *hdr)
1200 {
1201         struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
1202
1203         rtnl_route(hdr);
1204
1205         if (is_route_rtmsg(msg))
1206                 process_newroute(msg->rtm_family, msg->rtm_scope,
1207                                                 msg, RTM_PAYLOAD(hdr));
1208 }
1209
1210 static void rtnl_delroute(struct nlmsghdr *hdr)
1211 {
1212         struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
1213
1214         rtnl_route(hdr);
1215
1216         if (is_route_rtmsg(msg))
1217                 process_delroute(msg->rtm_family, msg->rtm_scope,
1218                                                 msg, RTM_PAYLOAD(hdr));
1219 }
1220
1221 static void *rtnl_nd_opt_rdnss(struct nd_opt_hdr *opt, guint32 *lifetime,
1222                                int *nr_servers)
1223 {
1224         guint32 *optint = (void *)opt;
1225
1226         if (opt->nd_opt_len < 3)
1227                 return NULL;
1228
1229         if (*lifetime > ntohl(optint[1]))
1230                 *lifetime = ntohl(optint[1]);
1231
1232         /* nd_opt_len is in units of 8 bytes. The header is 1 unit (8 bytes)
1233            and each address is another 2 units (16 bytes).
1234            So the number of addresses (given rounding) is nd_opt_len/2 */
1235         *nr_servers = opt->nd_opt_len / 2;
1236
1237         /* And they start 8 bytes into the packet, or two guint32s in. */
1238         return optint + 2;
1239 }
1240
1241 static const char **rtnl_nd_opt_dnssl(struct nd_opt_hdr *opt, guint32 *lifetime)
1242 {
1243         const char **domains = NULL;
1244         guint32 *optint = (void *)opt;
1245         unsigned char *optc = (void *)&optint[2];
1246         int data_len = (opt->nd_opt_len * 8) - 8;
1247         int nr_domains = 0;
1248         int i, tmp;
1249
1250         if (*lifetime > ntohl(optint[1]))
1251                 *lifetime = ntohl(optint[1]);
1252
1253         /* Turn it into normal strings by converting the length bytes into '.',
1254            and count how many search domains there are while we're at it. */
1255         i = 0;
1256         while (i < data_len) {
1257                 if (optc[i] > 0x3f) {
1258                         DBG("DNSSL contains compressed elements in violation of RFC6106");
1259                         return NULL;
1260                 }
1261
1262                 if (optc[i] == 0) {
1263                         nr_domains++;
1264                         i++;
1265                         /* Check for double zero */
1266                         if (i < data_len && optc[i] == 0)
1267                                 break;
1268                         continue;
1269                 }
1270
1271                 tmp = i;
1272                 i += optc[i] + 1;
1273
1274                 if (i >= data_len) {
1275                         DBG("DNSSL data overflows option length");
1276                         return NULL;
1277                 }
1278
1279                 optc[tmp] = '.';
1280         }
1281
1282         domains = g_try_new0(const char *, nr_domains + 1);
1283         if (!domains)
1284                 return NULL;
1285
1286         /* Now point to the normal strings, missing out the leading '.' that
1287            each of them will have now. */
1288         for (i = 0; i < nr_domains; i++) {
1289                 domains[i] = (char *)optc + 1;
1290                 optc += strlen((char *)optc) + 1;
1291         }
1292
1293         return domains;
1294 }
1295
1296 static void rtnl_newnduseropt(struct nlmsghdr *hdr)
1297 {
1298         struct nduseroptmsg *msg = (struct nduseroptmsg *) NLMSG_DATA(hdr);
1299         struct nd_opt_hdr *opt;
1300         guint32 lifetime = -1;
1301         const char **domains = NULL;
1302         struct in6_addr *servers = NULL;
1303         int i, nr_servers = 0;
1304         int msglen = msg->nduseropt_opts_len;
1305         int index;
1306
1307         DBG("family %d index %d len %d type %d code %d",
1308                 msg->nduseropt_family, msg->nduseropt_ifindex,
1309                 msg->nduseropt_opts_len, msg->nduseropt_icmp_type,
1310                 msg->nduseropt_icmp_code);
1311
1312         if (msg->nduseropt_family != AF_INET6 ||
1313                         msg->nduseropt_icmp_type != ND_ROUTER_ADVERT ||
1314                         msg->nduseropt_icmp_code != 0)
1315                 return;
1316
1317         index = msg->nduseropt_ifindex;
1318         if (index < 0)
1319                 return;
1320
1321 #if defined TIZEN_EXT
1322         struct connman_service *service;
1323         enum connman_service_state state;
1324         enum connman_dnsconfig_method ipv6_dns_method;
1325
1326         service = __connman_service_lookup_from_index(index);
1327         if (!service) {
1328                 DBG("Invalid service");
1329                 return;
1330         }
1331
1332         DBG("service: %p index: %d\n", service, index);
1333
1334         if (connman_setting_get_bool("SingleConnectedTechnology") == TRUE) {
1335                 state = __connman_service_ipconfig_get_state(service, CONNMAN_IPCONFIG_TYPE_IPV6);
1336                 if (state != CONNMAN_SERVICE_STATE_ASSOCIATION &&
1337                                 state != CONNMAN_SERVICE_STATE_CONFIGURATION &&
1338                                 state != CONNMAN_SERVICE_STATE_READY &&
1339                                 state != CONNMAN_SERVICE_STATE_ONLINE) {
1340                         DBG("Service state[%d] is not connecting/connected", state);
1341                         return;
1342                 }
1343         }
1344
1345         ipv6_dns_method = connman_service_get_ipv6_dns_method(service);
1346         if (ipv6_dns_method != CONNMAN_DNSCONFIG_METHOD_DHCP) {
1347                 DBG("IPv6 DNS method is not Auto ignore RA!!! [DNS method: %d]", ipv6_dns_method);
1348                 return;
1349         }
1350 #endif
1351
1352         for (opt = (void *)&msg[1];
1353                         msglen > 0;
1354                         msglen -= opt->nd_opt_len * 8,
1355                         opt = ((void *)opt) + opt->nd_opt_len*8) {
1356
1357                 DBG("remaining %d nd opt type %d len %d\n",
1358                         msglen, opt->nd_opt_type, opt->nd_opt_len);
1359
1360                 if (opt->nd_opt_type == 25) { /* ND_OPT_RDNSS */
1361                         char buf[40];
1362 #if defined TIZEN_EXT
1363                         struct connman_service *service;
1364
1365                         service = __connman_service_lookup_from_index(index);
1366                         DBG("service: %p\n",service);
1367 #endif
1368                         servers = rtnl_nd_opt_rdnss(opt, &lifetime,
1369                                         &nr_servers);
1370                         for (i = 0; i < nr_servers; i++) {
1371                                 if (!inet_ntop(AF_INET6, servers + i, buf,
1372                                                         sizeof(buf)))
1373                                         continue;
1374
1375 #if defined TIZEN_EXT
1376                                 __connman_service_nameserver_remove(service,
1377                                                 buf, false,
1378                                                 CONNMAN_IPCONFIG_TYPE_IPV6);
1379                                 __connman_service_nameserver_append(service,
1380                                                 buf, false,
1381                                                 CONNMAN_IPCONFIG_TYPE_IPV6);
1382 #endif
1383                                 connman_resolver_append_lifetime(index,
1384                                                 NULL, buf, lifetime);
1385                         }
1386
1387                 } else if (opt->nd_opt_type == 31) { /* ND_OPT_DNSSL */
1388                         g_free(domains);
1389
1390                         domains = rtnl_nd_opt_dnssl(opt, &lifetime);
1391                         for (i = 0; domains && domains[i]; i++)
1392                                 connman_resolver_append_lifetime(index,
1393                                                 domains[i], NULL, lifetime);
1394                 }
1395         }
1396
1397         g_free(domains);
1398 }
1399
1400 static const char *type2string(uint16_t type)
1401 {
1402         switch (type) {
1403         case NLMSG_NOOP:
1404                 return "NOOP";
1405         case NLMSG_ERROR:
1406                 return "ERROR";
1407         case NLMSG_DONE:
1408                 return "DONE";
1409         case NLMSG_OVERRUN:
1410                 return "OVERRUN";
1411         case RTM_GETLINK:
1412                 return "GETLINK";
1413         case RTM_NEWLINK:
1414                 return "NEWLINK";
1415         case RTM_DELLINK:
1416                 return "DELLINK";
1417         case RTM_GETADDR:
1418                 return "GETADDR";
1419         case RTM_NEWADDR:
1420                 return "NEWADDR";
1421         case RTM_DELADDR:
1422                 return "DELADDR";
1423         case RTM_GETROUTE:
1424                 return "GETROUTE";
1425         case RTM_NEWROUTE:
1426                 return "NEWROUTE";
1427         case RTM_DELROUTE:
1428                 return "DELROUTE";
1429         case RTM_NEWNDUSEROPT:
1430                 return "NEWNDUSEROPT";
1431         default:
1432                 return "UNKNOWN";
1433         }
1434 }
1435
1436 static GIOChannel *channel = NULL;
1437 static guint channel_watch = 0;
1438
1439 struct rtnl_request {
1440         struct nlmsghdr hdr;
1441         struct rtgenmsg msg;
1442 };
1443 #define RTNL_REQUEST_SIZE  (sizeof(struct nlmsghdr) + sizeof(struct rtgenmsg))
1444
1445 static GSList *request_list = NULL;
1446 static guint32 request_seq = 0;
1447
1448 static struct rtnl_request *find_request(guint32 seq)
1449 {
1450         GSList *list;
1451
1452         for (list = request_list; list; list = list->next) {
1453                 struct rtnl_request *req = list->data;
1454
1455                 if (req->hdr.nlmsg_seq == seq)
1456                         return req;
1457         }
1458
1459         return NULL;
1460 }
1461
1462 static int send_request(struct rtnl_request *req)
1463 {
1464         struct sockaddr_nl addr;
1465         int sk;
1466
1467         DBG("%s len %d type %d flags 0x%04x seq %d",
1468                                 type2string(req->hdr.nlmsg_type),
1469                                 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1470                                 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1471
1472         sk = g_io_channel_unix_get_fd(channel);
1473
1474         memset(&addr, 0, sizeof(addr));
1475         addr.nl_family = AF_NETLINK;
1476
1477         return sendto(sk, req, req->hdr.nlmsg_len, 0,
1478                                 (struct sockaddr *) &addr, sizeof(addr));
1479 }
1480
1481 static int queue_request(struct rtnl_request *req)
1482 {
1483         request_list = g_slist_append(request_list, req);
1484
1485         if (g_slist_length(request_list) > 1)
1486                 return 0;
1487
1488         return send_request(req);
1489 }
1490
1491 static int process_response(guint32 seq)
1492 {
1493         struct rtnl_request *req;
1494
1495         DBG("seq %d", seq);
1496
1497         req = find_request(seq);
1498         if (req) {
1499                 request_list = g_slist_remove(request_list, req);
1500                 g_free(req);
1501         }
1502
1503         req = g_slist_nth_data(request_list, 0);
1504         if (!req)
1505                 return 0;
1506
1507         return send_request(req);
1508 }
1509
1510 static void rtnl_message(void *buf, size_t len)
1511 {
1512         while (len > 0) {
1513                 struct nlmsghdr *hdr = buf;
1514                 struct nlmsgerr *err;
1515
1516                 if (!NLMSG_OK(hdr, len))
1517                         break;
1518
1519                 DBG("%s len %d type %d flags 0x%04x seq %d pid %d",
1520                                         type2string(hdr->nlmsg_type),
1521                                         hdr->nlmsg_len, hdr->nlmsg_type,
1522                                         hdr->nlmsg_flags, hdr->nlmsg_seq,
1523                                         hdr->nlmsg_pid);
1524
1525                 switch (hdr->nlmsg_type) {
1526                 case NLMSG_NOOP:
1527                 case NLMSG_OVERRUN:
1528                         return;
1529                 case NLMSG_DONE:
1530                         process_response(hdr->nlmsg_seq);
1531                         return;
1532                 case NLMSG_ERROR:
1533                         err = NLMSG_DATA(hdr);
1534                         DBG("error %d (%s)", -err->error,
1535                                                 strerror(-err->error));
1536                         return;
1537                 case RTM_NEWLINK:
1538                         rtnl_newlink(hdr);
1539                         break;
1540                 case RTM_DELLINK:
1541                         rtnl_dellink(hdr);
1542                         break;
1543                 case RTM_NEWADDR:
1544                         rtnl_newaddr(hdr);
1545                         break;
1546                 case RTM_DELADDR:
1547                         rtnl_deladdr(hdr);
1548                         break;
1549                 case RTM_NEWROUTE:
1550                         rtnl_newroute(hdr);
1551                         break;
1552                 case RTM_DELROUTE:
1553                         rtnl_delroute(hdr);
1554                         break;
1555                 case RTM_NEWNDUSEROPT:
1556                         rtnl_newnduseropt(hdr);
1557                         break;
1558                 }
1559
1560                 len -= hdr->nlmsg_len;
1561                 buf += hdr->nlmsg_len;
1562         }
1563 }
1564
1565 static gboolean netlink_event(GIOChannel *chan, GIOCondition cond, gpointer data)
1566 {
1567         unsigned char buf[4096];
1568         struct sockaddr_nl nladdr;
1569         socklen_t addr_len = sizeof(nladdr);
1570         ssize_t status;
1571         int fd;
1572
1573         if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1574                 return FALSE;
1575
1576         memset(buf, 0, sizeof(buf));
1577         memset(&nladdr, 0, sizeof(nladdr));
1578
1579         fd = g_io_channel_unix_get_fd(chan);
1580
1581         status = recvfrom(fd, buf, sizeof(buf), 0,
1582                        (struct sockaddr *) &nladdr, &addr_len);
1583         if (status < 0) {
1584                 if (errno == EINTR || errno == EAGAIN)
1585                         return TRUE;
1586
1587                 return FALSE;
1588         }
1589
1590         if (status == 0)
1591                 return FALSE;
1592
1593         if (nladdr.nl_pid != 0) { /* not sent by kernel, ignore */
1594                 DBG("Received msg from %u, ignoring it", nladdr.nl_pid);
1595                 return TRUE;
1596         }
1597
1598         rtnl_message(buf, status);
1599
1600         return TRUE;
1601 }
1602
1603 static int send_getlink(void)
1604 {
1605         struct rtnl_request *req;
1606
1607         DBG("");
1608
1609         req = g_try_malloc0(RTNL_REQUEST_SIZE);
1610         if (!req)
1611                 return -ENOMEM;
1612
1613         req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1614         req->hdr.nlmsg_type = RTM_GETLINK;
1615         req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1616         req->hdr.nlmsg_pid = 0;
1617         req->hdr.nlmsg_seq = request_seq++;
1618         req->msg.rtgen_family = AF_INET;
1619
1620         return queue_request(req);
1621 }
1622
1623 static int send_getaddr(void)
1624 {
1625         struct rtnl_request *req;
1626
1627         DBG("");
1628
1629         req = g_try_malloc0(RTNL_REQUEST_SIZE);
1630         if (!req)
1631                 return -ENOMEM;
1632
1633         req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1634         req->hdr.nlmsg_type = RTM_GETADDR;
1635         req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1636         req->hdr.nlmsg_pid = 0;
1637         req->hdr.nlmsg_seq = request_seq++;
1638         req->msg.rtgen_family = AF_INET;
1639
1640         return queue_request(req);
1641 }
1642
1643 static int send_getroute(void)
1644 {
1645         struct rtnl_request *req;
1646
1647         DBG("");
1648
1649         req = g_try_malloc0(RTNL_REQUEST_SIZE);
1650         if (!req)
1651                 return -ENOMEM;
1652
1653         req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1654         req->hdr.nlmsg_type = RTM_GETROUTE;
1655         req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1656         req->hdr.nlmsg_pid = 0;
1657         req->hdr.nlmsg_seq = request_seq++;
1658         req->msg.rtgen_family = AF_INET;
1659
1660         return queue_request(req);
1661 }
1662
1663 static gboolean update_timeout_cb(gpointer user_data)
1664 {
1665         __connman_rtnl_request_update();
1666
1667         return TRUE;
1668 }
1669
1670 static void update_interval_callback(guint min)
1671 {
1672         if (update_timeout > 0)
1673                 g_source_remove(update_timeout);
1674
1675         if (min < G_MAXUINT) {
1676                 update_interval = min;
1677                 update_timeout = g_timeout_add_seconds(update_interval,
1678                                                 update_timeout_cb, NULL);
1679         } else {
1680                 update_timeout = 0;
1681                 update_interval = G_MAXUINT;
1682         }
1683 }
1684
1685 static gint compare_interval(gconstpointer a, gconstpointer b)
1686 {
1687         guint val_a = GPOINTER_TO_UINT(a);
1688         guint val_b = GPOINTER_TO_UINT(b);
1689
1690         return val_a - val_b;
1691 }
1692
1693 unsigned int __connman_rtnl_update_interval_add(unsigned int interval)
1694 {
1695         guint min;
1696
1697         if (interval == 0)
1698                 return 0;
1699
1700         update_list = g_slist_insert_sorted(update_list,
1701                         GUINT_TO_POINTER(interval), compare_interval);
1702
1703         min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1704         if (min < update_interval) {
1705                 update_interval_callback(min);
1706                 __connman_rtnl_request_update();
1707         }
1708
1709         return update_interval;
1710 }
1711
1712 unsigned int __connman_rtnl_update_interval_remove(unsigned int interval)
1713 {
1714         guint min = G_MAXUINT;
1715
1716         if (interval == 0)
1717                 return 0;
1718
1719         update_list = g_slist_remove(update_list, GINT_TO_POINTER(interval));
1720
1721         if (update_list)
1722                 min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1723
1724         if (min > update_interval)
1725                 update_interval_callback(min);
1726
1727         return min;
1728 }
1729
1730 int __connman_rtnl_request_update(void)
1731 {
1732         return send_getlink();
1733 }
1734
1735 int __connman_rtnl_init(void)
1736 {
1737         struct sockaddr_nl addr;
1738         int sk;
1739
1740         DBG("");
1741
1742         interface_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1743                                                         NULL, free_interface);
1744
1745         sk = socket(PF_NETLINK, SOCK_DGRAM | SOCK_CLOEXEC, NETLINK_ROUTE);
1746         if (sk < 0)
1747                 return -1;
1748
1749         memset(&addr, 0, sizeof(addr));
1750         addr.nl_family = AF_NETLINK;
1751         addr.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV4_ROUTE |
1752                                 RTMGRP_IPV6_IFADDR | RTMGRP_IPV6_ROUTE |
1753                                 (1<<(RTNLGRP_ND_USEROPT-1));
1754
1755         if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
1756                 close(sk);
1757                 return -1;
1758         }
1759
1760         channel = g_io_channel_unix_new(sk);
1761         g_io_channel_set_close_on_unref(channel, TRUE);
1762
1763         g_io_channel_set_encoding(channel, NULL, NULL);
1764         g_io_channel_set_buffered(channel, FALSE);
1765
1766         channel_watch = g_io_add_watch(channel,
1767                                 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
1768                                 netlink_event, NULL);
1769
1770         return 0;
1771 }
1772
1773 void __connman_rtnl_start(void)
1774 {
1775         DBG("");
1776
1777         send_getlink();
1778         send_getaddr();
1779         send_getroute();
1780 }
1781
1782 void __connman_rtnl_cleanup(void)
1783 {
1784         GSList *list;
1785
1786         DBG("");
1787
1788         for (list = watch_list; list; list = list->next) {
1789                 struct watch_data *watch = list->data;
1790
1791                 DBG("removing watch %d", watch->id);
1792
1793                 g_free(watch);
1794                 list->data = NULL;
1795         }
1796
1797         g_slist_free(watch_list);
1798         watch_list = NULL;
1799
1800         g_slist_free(update_list);
1801         update_list = NULL;
1802
1803         for (list = request_list; list; list = list->next) {
1804                 struct rtnl_request *req = list->data;
1805
1806                 DBG("%s len %d type %d flags 0x%04x seq %d",
1807                                 type2string(req->hdr.nlmsg_type),
1808                                 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1809                                 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1810
1811                 g_free(req);
1812                 list->data = NULL;
1813         }
1814
1815         g_slist_free(request_list);
1816         request_list = NULL;
1817
1818         if (channel_watch) {
1819                 g_source_remove(channel_watch);
1820                 channel_watch = 0;
1821         }
1822
1823         g_io_channel_shutdown(channel, TRUE, NULL);
1824         g_io_channel_unref(channel);
1825
1826         channel = NULL;
1827
1828         g_hash_table_destroy(interface_list);
1829 }