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                 g_free(name);
 163                 return;
 164         }
 165 #endif
 166
 167         if (ether_blacklisted(name)) {
 168                 interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
 169                 interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
 170                 goto out;
 171         } else {
 172                 interface->service_type = CONNMAN_SERVICE_TYPE_ETHERNET;
 173                 interface->device_type = CONNMAN_DEVICE_TYPE_ETHERNET;
 174         }
 175
 176         filename = g_strdup_printf("/sys/class/net/%s/uevent", name);
 177
 178         f = fopen(filename, "re");
 179
 180         g_free(filename);
 181
 182         if (!f) {
 183                 interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
 184                 interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
 185                 goto out;
 186         }
 187
 188         found_devtype = false;
 189         while (fgets(line, sizeof(line), f)) {
 190                 char *pos;
 191
 192                 pos = strchr(line, '\n');
 193                 if (!pos)
 194                         continue;
 195                 pos[0] = '\0';
 196
 197                 if (strncmp(line, "DEVTYPE=", 8) != 0)
 198                         continue;
 199
 200                 found_devtype = true;
 201
 202                 if (strcmp(line + 8, "wlan") == 0) {
 203                         interface->service_type = CONNMAN_SERVICE_TYPE_WIFI;
 204                         interface->device_type = CONNMAN_DEVICE_TYPE_WIFI;
 205                 } else if (strcmp(line + 8, "wwan") == 0) {
 206                         interface->service_type = CONNMAN_SERVICE_TYPE_CELLULAR;
 207                         interface->device_type = CONNMAN_DEVICE_TYPE_CELLULAR;
 208                 } else if (strcmp(line + 8, "bluetooth") == 0) {
 209                         interface->service_type = CONNMAN_SERVICE_TYPE_BLUETOOTH;
 210                         interface->device_type = CONNMAN_DEVICE_TYPE_BLUETOOTH;
 211                 } else if (strcmp(line + 8, "gadget") == 0) {
 212                         interface->service_type = CONNMAN_SERVICE_TYPE_GADGET;
 213                         interface->device_type = CONNMAN_DEVICE_TYPE_GADGET;
 214                 } else if (strcmp(line + 8, "vlan") == 0) {
 215                         interface->service_type = CONNMAN_SERVICE_TYPE_ETHERNET;
 216                         interface->device_type = CONNMAN_DEVICE_TYPE_ETHERNET;
 217                 } else if (strcmp(line + 8, "bond") == 0) {
 218                         interface->service_type = CONNMAN_SERVICE_TYPE_ETHERNET;
 219                         interface->device_type = CONNMAN_DEVICE_TYPE_ETHERNET;
 220                 } else {
 221                         interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
 222                         interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
 223                 }
 224         }
 225
 226         fclose(f);
 227
 228         if (found_devtype)
 229                 goto out;
 230
 231 #if !defined TIZEN_EXT
 232         /* TIZEN does not use old wext interface */
 233         /* We haven't got a DEVTYPE, let's check if it's a wireless device */
 234         if (wext_interface(name)) {
 235                 interface->service_type = CONNMAN_SERVICE_TYPE_WIFI;
 236                 interface->device_type = CONNMAN_DEVICE_TYPE_WIFI;
 237
 238                 connman_error("%s runs an unsupported 802.11 driver", name);
 239         }
 240 #endif
 241
 242 out:
 243         g_free(name);
 244 }
 245
 246 enum connman_device_type __connman_rtnl_get_device_type(int index)
 247 {
 248         struct interface_data *interface;
 249
 250         interface = g_hash_table_lookup(interface_list,
 251                                         GINT_TO_POINTER(index));
 252         if (!interface)
 253                 return CONNMAN_DEVICE_TYPE_UNKNOWN;
 254
 255         return interface->device_type;
 256 }
 257
 258 /**
 259  * connman_rtnl_add_newlink_watch:
 260  * @index: network device index
 261  * @callback: callback function
 262  * @user_data: callback data;
 263  *
 264  * Add a new RTNL watch for newlink events
 265  *
 266  * Returns: %0 on failure and a unique id on success
 267  */
 268 unsigned int connman_rtnl_add_newlink_watch(int index,
 269                         connman_rtnl_link_cb_t callback, void *user_data)
 270 {
 271         struct watch_data *watch;
 272
 273         watch = g_try_new0(struct watch_data, 1);
 274         if (!watch)
 275                 return 0;
 276
 277         watch->id = ++watch_id;
 278         watch->index = index;
 279
 280         watch->newlink = callback;
 281         watch->user_data = user_data;
 282
 283         watch_list = g_slist_prepend(watch_list, watch);
 284
 285         DBG("id %d", watch->id);
 286
 287         if (callback) {
 288                 unsigned int flags = __connman_ipconfig_get_flags_from_index(index);
 289
 290                 if (flags > 0)
 291                         callback(flags, 0, user_data);
 292         }
 293
 294         return watch->id;
 295 }
 296
 297 /**
 298  * connman_rtnl_remove_watch:
 299  * @id: watch identifier
 300  *
 301  * Remove the RTNL watch for the identifier
 302  */
 303 void connman_rtnl_remove_watch(unsigned int id)
 304 {
 305         GSList *list;
 306
 307         DBG("id %d", id);
 308
 309         if (id == 0)
 310                 return;
 311
 312         for (list = watch_list; list; list = list->next) {
 313                 struct watch_data *watch = list->data;
 314
 315                 if (watch->id  == id) {
 316                         watch_list = g_slist_remove(watch_list, watch);
 317                         g_free(watch);
 318                         break;
 319                 }
 320         }
 321 }
 322
 323 static void trigger_rtnl(int index, void *user_data)
 324 {
 325         struct connman_rtnl *rtnl = user_data;
 326
 327         if (rtnl->newlink) {
 328                 unsigned short type = __connman_ipconfig_get_type_from_index(index);
 329                 unsigned int flags = __connman_ipconfig_get_flags_from_index(index);
 330
 331                 rtnl->newlink(type, index, flags, 0);
 332         }
 333
 334         if (rtnl->newgateway) {
 335                 const char *gateway =
 336                         __connman_ipconfig_get_gateway_from_index(index,
 337                                         CONNMAN_IPCONFIG_TYPE_ALL);
 338
 339                 if (gateway)
 340                         rtnl->newgateway(index, gateway);
 341         }
 342 }
 343
 344 static GSList *rtnl_list = NULL;
 345
 346 static gint compare_priority(gconstpointer a, gconstpointer b)
 347 {
 348         const struct connman_rtnl *rtnl1 = a;
 349         const struct connman_rtnl *rtnl2 = b;
 350
 351         return rtnl2->priority - rtnl1->priority;
 352 }
 353
 354 /**
 355  * connman_rtnl_register:
 356  * @rtnl: RTNL module
 357  *
 358  * Register a new RTNL module
 359  *
 360  * Returns: %0 on success
 361  */
 362 int connman_rtnl_register(struct connman_rtnl *rtnl)
 363 {
 364         DBG("rtnl %p name %s", rtnl, rtnl->name);
 365
 366         rtnl_list = g_slist_insert_sorted(rtnl_list, rtnl,
 367                                                         compare_priority);
 368
 369         __connman_ipconfig_foreach(trigger_rtnl, rtnl);
 370
 371         return 0;
 372 }
 373
 374 /**
 375  * connman_rtnl_unregister:
 376  * @rtnl: RTNL module
 377  *
 378  * Remove a previously registered RTNL module
 379  */
 380 void connman_rtnl_unregister(struct connman_rtnl *rtnl)
 381 {
 382         DBG("rtnl %p name %s", rtnl, rtnl->name);
 383
 384         rtnl_list = g_slist_remove(rtnl_list, rtnl);
 385 }
 386
 387 static const char *operstate2str(unsigned char operstate)
 388 {
 389         switch (operstate) {
 390         case IF_OPER_UNKNOWN:
 391                 return "UNKNOWN";
 392         case IF_OPER_NOTPRESENT:
 393                 return "NOT-PRESENT";
 394         case IF_OPER_DOWN:
 395                 return "DOWN";
 396         case IF_OPER_LOWERLAYERDOWN:
 397                 return "LOWER-LAYER-DOWN";
 398         case IF_OPER_TESTING:
 399                 return "TESTING";
 400         case IF_OPER_DORMANT:
 401                 return "DORMANT";
 402         case IF_OPER_UP:
 403                 return "UP";
 404         }
 405
 406         return "";
 407 }
 408
 409 static bool extract_link(struct ifinfomsg *msg, int bytes,
 410                                 struct ether_addr *address, const char **ifname,
 411                                 unsigned int *mtu, unsigned char *operstate,
 412                                 struct rtnl_link_stats *stats)
 413 {
 414         struct rtattr *attr;
 415
 416         for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
 417                                         attr = RTA_NEXT(attr, bytes)) {
 418                 switch (attr->rta_type) {
 419                 case IFLA_ADDRESS:
 420                         if (address)
 421                                 memcpy(address, RTA_DATA(attr), ETH_ALEN);
 422                         break;
 423                 case IFLA_IFNAME:
 424                         if (ifname)
 425                                 *ifname = RTA_DATA(attr);
 426                         break;
 427                 case IFLA_MTU:
 428                         if (mtu)
 429                                 *mtu = *((unsigned int *) RTA_DATA(attr));
 430                         break;
 431                 case IFLA_STATS:
 432                         if (stats)
 433                                 memcpy(stats, RTA_DATA(attr),
 434                                         sizeof(struct rtnl_link_stats));
 435                         break;
 436                 case IFLA_OPERSTATE:
 437                         if (operstate)
 438                                 *operstate = *((unsigned char *) RTA_DATA(attr));
 439                         break;
 440                 case IFLA_LINKMODE:
 441                         break;
 442                 case IFLA_WIRELESS:
 443                         return false;
 444                 }
 445         }
 446
 447         return true;
 448 }
 449
 450 static void process_newlink(unsigned short type, int index, unsigned flags,
 451                         unsigned change, struct ifinfomsg *msg, int bytes)
 452 {
 453         struct ether_addr address = {{ 0, 0, 0, 0, 0, 0 }};
 454         struct rtnl_link_stats stats;
 455         unsigned char operstate = 0xff;
 456         struct interface_data *interface;
 457         const char *ifname = NULL;
 458         unsigned int mtu = 0;
 459         char ident[13], str[18];
 460         GSList *list;
 461
 462         memset(&stats, 0, sizeof(stats));
 463         if (!extract_link(msg, bytes, &address, &ifname, &mtu, &operstate, &stats))
 464                 return;
 465
 466 #if defined TIZEN_EXT_WIFI_MESH
 467         /* Do not accept Wi-Fi Mesh interface */
 468         if (g_strrstr(ifname, "mesh") != NULL) {
 469                 DBG("Newlink event for Wi-Fi Mesh interface ignored");
 470                 return;
 471         }
 472
 473         /* Do not accept Wi-Fi WLAN1 interface "dedicated for softAP */
 474         if (!g_strcmp0(ifname, "wlan1")) {
 475                 DBG("Newlink event for Wi-Fi WLAN1 interface ignored");
 476                 return;
 477         }
 478 #endif
 479
 480 #if defined TIZEN_EXT
 481         /* Do not accept Wi-Fi P2P interface */
 482         if (g_strrstr(ifname, "p2p") != NULL) {
 483                 DBG("Newlink event for Wi-Fi P2P interface ignored");
 484                 return;
 485         }
 486 #endif
 487
 488         snprintf(ident, 13, "%02x%02x%02x%02x%02x%02x",
 489                                                 address.ether_addr_octet[0],
 490                                                 address.ether_addr_octet[1],
 491                                                 address.ether_addr_octet[2],
 492                                                 address.ether_addr_octet[3],
 493                                                 address.ether_addr_octet[4],
 494                                                 address.ether_addr_octet[5]);
 495
 496         snprintf(str, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
 497                                                 address.ether_addr_octet[0],
 498                                                 address.ether_addr_octet[1],
 499                                                 address.ether_addr_octet[2],
 500                                                 address.ether_addr_octet[3],
 501                                                 address.ether_addr_octet[4],
 502                                                 address.ether_addr_octet[5]);
 503
 504         if (flags & IFF_SLAVE) {
 505                 connman_info("%s {newlink} ignoring slave, index %d address %s",
 506                                                 ifname, index, str);
 507                 return;
 508         }
 509
 510 #ifdef TIZEN_EXT
 511         if (TIZEN_TV_EXT && g_strcmp0(ident, "eeeeeeeeeeee") == 0) {
 512                 DBG("Newlink event with Dummy MAC. Ignored!");
 513                 return;
 514         }
 515 #endif
 516
 517         switch (type) {
 518         case ARPHRD_ETHER:
 519         case ARPHRD_LOOPBACK:
 520         case ARPHDR_PHONET_PIPE:
 521         case ARPHRD_PPP:
 522         case ARPHRD_NONE:
 523 #if defined TIZEN_EXT
 524 /*
 525  * Description: ARPHDR_RMNET for QC modem using QMI
 526  */
 527         case ARPHDR_RMNET:
 528 #endif
 529                 __connman_ipconfig_newlink(index, type, flags,
 530                                                         str, mtu, &stats);
 531                 break;
 532         }
 533
 534         connman_info("%s {newlink} index %d address %s mtu %u",
 535                                         ifname, index, str, mtu);
 536
 537         if (operstate != 0xff)
 538                 connman_info("%s {newlink} index %d operstate %u <%s>",
 539                                                 ifname, index, operstate,
 540                                                 operstate2str(operstate));
 541
 542         interface = g_hash_table_lookup(interface_list, GINT_TO_POINTER(index));
 543         if (!interface) {
 544                 interface = g_new0(struct interface_data, 1);
 545                 interface->index = index;
 546                 interface->ident = g_strdup(ident);
 547
 548                 g_hash_table_insert(interface_list,
 549                                         GINT_TO_POINTER(index), interface);
 550
 551                 if (type == ARPHRD_ETHER)
 552                         read_uevent(interface);
 553 #if defined TIZEN_EXT
 554                 if (type == ARPHRD_PPP || type == ARPHDR_RMNET)
 555                         read_uevent(interface);
 556
 557         } else if (g_strcmp0(interface->ident, ident) != 0) {
 558                 /* If an original address is built-in physical device,
 559                  * it's hardly get an address at a initial creation
 560                  */
 561                 __connman_technology_remove_interface(interface->service_type,
 562                                 interface->index, interface->ident);
 563
 564                 g_free(interface->ident);
 565                 interface->ident = g_strdup(ident);
 566
 567                 __connman_technology_add_interface(interface->service_type,
 568                                 interface->index, interface->ident);
 569
 570                 interface = NULL;
 571 #endif
 572         } else if (type == ARPHRD_ETHER && interface->device_type == CONNMAN_DEVICE_TYPE_UNKNOWN)
 573                 read_uevent(interface);
 574         else
 575                 interface = NULL;
 576
 577         for (list = rtnl_list; list; list = list->next) {
 578                 struct connman_rtnl *rtnl = list->data;
 579
 580                 if (rtnl->newlink)
 581                         rtnl->newlink(type, index, flags, change);
 582         }
 583
 584         /*
 585          * The interface needs to be added after the newlink call.
 586          * The newlink will create the technology when needed and
 587          * __connman_technology_add_interface() expects the
 588          * technology to be there already.
 589          */
 590         if (interface)
 591                 __connman_technology_add_interface(interface->service_type,
 592                         interface->index, interface->ident);
 593
 594         for (list = watch_list; list; list = list->next) {
 595                 struct watch_data *watch = list->data;
 596
 597                 if (watch->index != index)
 598                         continue;
 599
 600                 if (watch->newlink)
 601                         watch->newlink(flags, change, watch->user_data);
 602         }
 603 }
 604
 605 static void process_dellink(unsigned short type, int index, unsigned flags,
 606                         unsigned change, struct ifinfomsg *msg, int bytes)
 607 {
 608         struct rtnl_link_stats stats;
 609         unsigned char operstate = 0xff;
 610         const char *ifname = NULL;
 611         GSList *list;
 612
 613         memset(&stats, 0, sizeof(stats));
 614         if (!extract_link(msg, bytes, NULL, &ifname, NULL, &operstate, &stats))
 615                 return;
 616
 617         if (operstate != 0xff)
 618                 connman_info("%s {dellink} index %d operstate %u <%s>",
 619                                                 ifname, index, operstate,
 620                                                 operstate2str(operstate));
 621
 622         for (list = rtnl_list; list; list = list->next) {
 623                 struct connman_rtnl *rtnl = list->data;
 624
 625                 if (rtnl->dellink)
 626                         rtnl->dellink(type, index, flags, change);
 627         }
 628
 629         switch (type) {
 630         case ARPHRD_ETHER:
 631         case ARPHRD_LOOPBACK:
 632         case ARPHDR_PHONET_PIPE:
 633         case ARPHRD_PPP:
 634         case ARPHRD_NONE:
 635 #if defined TIZEN_EXT
 636         /*
 637          * Description: SLP requires ARPHRD_PPP for PPP type device
 638          *              ARPHDR_RMNET for QC modem using QMI
 639          */
 640         case ARPHDR_RMNET:
 641 #endif
 642                 __connman_ipconfig_dellink(index, &stats);
 643                 break;
 644         }
 645
 646         g_hash_table_remove(interface_list, GINT_TO_POINTER(index));
 647 }
 648
 649 static void extract_ipv4_addr(struct ifaddrmsg *msg, int bytes,
 650                                                 const char **label,
 651                                                 struct in_addr *local,
 652                                                 struct in_addr *address,
 653                                                 struct in_addr *broadcast)
 654 {
 655         struct rtattr *attr;
 656
 657         for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
 658                                         attr = RTA_NEXT(attr, bytes)) {
 659                 switch (attr->rta_type) {
 660                 case IFA_ADDRESS:
 661                         if (address)
 662                                 *address = *((struct in_addr *) RTA_DATA(attr));
 663                         break;
 664                 case IFA_LOCAL:
 665                         if (local)
 666                                 *local = *((struct in_addr *) RTA_DATA(attr));
 667                         break;
 668                 case IFA_BROADCAST:
 669                         if (broadcast)
 670                                 *broadcast = *((struct in_addr *) RTA_DATA(attr));
 671                         break;
 672                 case IFA_LABEL:
 673                         if (label)
 674                                 *label = RTA_DATA(attr);
 675                         break;
 676                 }
 677         }
 678 }
 679
 680 static void extract_ipv6_addr(struct ifaddrmsg *msg, int bytes,
 681                                                 struct in6_addr *addr,
 682                                                 struct in6_addr *local)
 683 {
 684         struct rtattr *attr;
 685
 686         for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
 687                                         attr = RTA_NEXT(attr, bytes)) {
 688                 switch (attr->rta_type) {
 689                 case IFA_ADDRESS:
 690                         if (addr)
 691                                 *addr = *((struct in6_addr *) RTA_DATA(attr));
 692                         break;
 693                 case IFA_LOCAL:
 694                         if (local)
 695                                 *local = *((struct in6_addr *) RTA_DATA(attr));
 696                         break;
 697                 }
 698         }
 699 }
 700
 701 static void process_newaddr(unsigned char family, unsigned char prefixlen,
 702                                 int index, struct ifaddrmsg *msg, int bytes)
 703 {
 704         struct in_addr ipv4_addr = { INADDR_ANY };
 705         struct in6_addr ipv6_address, ipv6_local;
 706         const char *label = NULL;
 707         void *src;
 708         char ip_string[INET6_ADDRSTRLEN];
 709
 710         if (family == AF_INET) {
 711
 712                 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
 713                 src = &ipv4_addr;
 714         } else if (family == AF_INET6) {
 715                 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
 716                 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
 717                         return;
 718
 719                 src = &ipv6_address;
 720         } else {
 721                 return;
 722         }
 723
 724         if (!inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN))
 725                 return;
 726
 727         if (__connman_ipconfig_newaddr(index, family, label,
 728                                         prefixlen, ip_string) >= 0) {
 729                 if (family == AF_INET6) {
 730                         /*
 731                          * Re-create RDNSS configured servers if there
 732                          * are any for this interface. This is done
 733                          * because we might have now properly
 734                          * configured interface with proper
 735                          * autoconfigured address.
 736                          */
 737                         __connman_resolver_redo_servers(index);
 738                 }
 739         }
 740 }
 741
 742 static void process_deladdr(unsigned char family, unsigned char prefixlen,
 743                                 int index, struct ifaddrmsg *msg, int bytes)
 744 {
 745         struct in_addr ipv4_addr = { INADDR_ANY };
 746         struct in6_addr ipv6_address, ipv6_local;
 747         const char *label = NULL;
 748         void *src;
 749         char ip_string[INET6_ADDRSTRLEN];
 750
 751         if (family == AF_INET) {
 752                 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
 753                 src = &ipv4_addr;
 754         } else if (family == AF_INET6) {
 755                 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
 756                 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
 757                         return;
 758
 759                 src = &ipv6_address;
 760         } else {
 761                 return;
 762         }
 763
 764         if (!inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN))
 765                 return;
 766
 767         __connman_ipconfig_deladdr(index, family, label,
 768                                         prefixlen, ip_string);
 769 }
 770
 771 static void extract_ipv4_route(struct rtmsg *msg, int bytes, int *index,
 772                                                 struct in_addr *dst,
 773                                                 struct in_addr *gateway)
 774 {
 775         struct rtattr *attr;
 776
 777         for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
 778                                         attr = RTA_NEXT(attr, bytes)) {
 779                 switch (attr->rta_type) {
 780                 case RTA_DST:
 781                         if (dst)
 782                                 *dst = *((struct in_addr *) RTA_DATA(attr));
 783                         break;
 784                 case RTA_GATEWAY:
 785                         if (gateway)
 786                                 *gateway = *((struct in_addr *) RTA_DATA(attr));
 787                         break;
 788                 case RTA_OIF:
 789                         if (index)
 790                                 *index = *((int *) RTA_DATA(attr));
 791                         break;
 792                 }
 793         }
 794 }
 795
 796 static void extract_ipv6_route(struct rtmsg *msg, int bytes, int *index,
 797                                                 struct in6_addr *dst,
 798                                                 struct in6_addr *gateway)
 799 {
 800         struct rtattr *attr;
 801
 802         for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
 803                                         attr = RTA_NEXT(attr, bytes)) {
 804                 switch (attr->rta_type) {
 805                 case RTA_DST:
 806                         if (dst)
 807                                 *dst = *((struct in6_addr *) RTA_DATA(attr));
 808                         break;
 809                 case RTA_GATEWAY:
 810                         if (gateway)
 811                                 *gateway =
 812                                         *((struct in6_addr *) RTA_DATA(attr));
 813                         break;
 814                 case RTA_OIF:
 815                         if (index)
 816                                 *index = *((int *) RTA_DATA(attr));
 817                         break;
 818                 }
 819         }
 820 }
 821
 822 static void process_newroute(unsigned char family, unsigned char scope,
 823                                                 struct rtmsg *msg, int bytes)
 824 {
 825         GSList *list;
 826         char dststr[INET6_ADDRSTRLEN], gatewaystr[INET6_ADDRSTRLEN];
 827         int index = -1;
 828
 829         if (family == AF_INET) {
 830                 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
 831
 832                 extract_ipv4_route(msg, bytes, &index, &dst, &gateway);
 833
 834                 inet_ntop(family, &dst, dststr, sizeof(dststr));
 835                 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 836
 837                 __connman_ipconfig_newroute(index, family, scope, dststr,
 838                                                                 gatewaystr);
 839
 840                 /* skip host specific routes */
 841                 if (scope != RT_SCOPE_UNIVERSE &&
 842                         !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
 843                         return;
 844
 845                 if (dst.s_addr != INADDR_ANY)
 846                         return;
 847
 848         } else if (family == AF_INET6) {
 849                 struct in6_addr dst = IN6ADDR_ANY_INIT,
 850                                 gateway = IN6ADDR_ANY_INIT;
 851
 852                 extract_ipv6_route(msg, bytes, &index, &dst, &gateway);
 853
 854                 inet_ntop(family, &dst, dststr, sizeof(dststr));
 855                 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 856
 857                 __connman_ipconfig_newroute(index, family, scope, dststr,
 858                                                                 gatewaystr);
 859
 860                 /* skip host specific routes */
 861                 if (scope != RT_SCOPE_UNIVERSE &&
 862                         !(scope == RT_SCOPE_LINK &&
 863                                 IN6_IS_ADDR_UNSPECIFIED(&dst)))
 864                         return;
 865
 866                 if (!IN6_IS_ADDR_UNSPECIFIED(&dst))
 867                         return;
 868         } else
 869                 return;
 870
 871         for (list = rtnl_list; list; list = list->next) {
 872                 struct connman_rtnl *rtnl = list->data;
 873
 874                 if (rtnl->newgateway)
 875                         rtnl->newgateway(index, gatewaystr);
 876         }
 877 }
 878
 879 static void process_delroute(unsigned char family, unsigned char scope,
 880                                                 struct rtmsg *msg, int bytes)
 881 {
 882         GSList *list;
 883         char dststr[INET6_ADDRSTRLEN], gatewaystr[INET6_ADDRSTRLEN];
 884         int index = -1;
 885
 886         if (family == AF_INET) {
 887                 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
 888
 889                 extract_ipv4_route(msg, bytes, &index, &dst, &gateway);
 890
 891                 inet_ntop(family, &dst, dststr, sizeof(dststr));
 892                 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 893
 894                 __connman_ipconfig_delroute(index, family, scope, dststr,
 895                                                                 gatewaystr);
 896
 897                 /* skip host specific routes */
 898                 if (scope != RT_SCOPE_UNIVERSE &&
 899                         !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
 900                         return;
 901
 902                 if (dst.s_addr != INADDR_ANY)
 903                         return;
 904
 905         }  else if (family == AF_INET6) {
 906                 struct in6_addr dst = IN6ADDR_ANY_INIT,
 907                                 gateway = IN6ADDR_ANY_INIT;
 908
 909                 extract_ipv6_route(msg, bytes, &index, &dst, &gateway);
 910
 911                 inet_ntop(family, &dst, dststr, sizeof(dststr));
 912                 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 913
 914                 __connman_ipconfig_delroute(index, family, scope, dststr,
 915                                                 gatewaystr);
 916
 917                 /* skip host specific routes */
 918                 if (scope != RT_SCOPE_UNIVERSE &&
 919                         !(scope == RT_SCOPE_LINK &&
 920                                 IN6_IS_ADDR_UNSPECIFIED(&dst)))
 921                         return;
 922
 923                 if (!IN6_IS_ADDR_UNSPECIFIED(&dst))
 924                         return;
 925         } else
 926                 return;
 927
 928         for (list = rtnl_list; list; list = list->next) {
 929                 struct connman_rtnl *rtnl = list->data;
 930
 931                 if (rtnl->delgateway)
 932                         rtnl->delgateway(index, gatewaystr);
 933         }
 934 }
 935
 936 static inline void print_ether(struct rtattr *attr, const char *name)
 937 {
 938         int len = (int) RTA_PAYLOAD(attr);
 939
 940         if (len == ETH_ALEN) {
 941                 struct ether_addr eth;
 942                 memcpy(&eth, RTA_DATA(attr), ETH_ALEN);
 943                 print("  attr %s (len %d) %s\n", name, len, ether_ntoa(&eth));
 944         } else
 945                 print("  attr %s (len %d)\n", name, len);
 946 }
 947
 948 static inline void print_inet(struct rtattr *attr, const char *name,
 949                                                         unsigned char family)
 950 {
 951         int len = (int) RTA_PAYLOAD(attr);
 952
 953         if (family == AF_INET && len == sizeof(struct in_addr)) {
 954                 struct in_addr addr;
 955                 addr = *((struct in_addr *) RTA_DATA(attr));
 956                 print("  attr %s (len %d) %s\n", name, len, inet_ntoa(addr));
 957         } else
 958                 print("  attr %s (len %d)\n", name, len);
 959 }
 960
 961 static inline void print_string(struct rtattr *attr, const char *name)
 962 {
 963         print("  attr %s (len %d) %s\n", name, (int) RTA_PAYLOAD(attr),
 964                                                 (char *) RTA_DATA(attr));
 965 }
 966
 967 static inline void print_byte(struct rtattr *attr, const char *name)
 968 {
 969         print("  attr %s (len %d) 0x%02x\n", name, (int) RTA_PAYLOAD(attr),
 970                                         *((unsigned char *) RTA_DATA(attr)));
 971 }
 972
 973 static inline void print_integer(struct rtattr *attr, const char *name)
 974 {
 975         print("  attr %s (len %d) %d\n", name, (int) RTA_PAYLOAD(attr),
 976                                                 *((int *) RTA_DATA(attr)));
 977 }
 978
 979 static inline void print_attr(struct rtattr *attr, const char *name)
 980 {
 981         int len = (int) RTA_PAYLOAD(attr);
 982
 983         if (name && len > 0)
 984                 print("  attr %s (len %d)\n", name, len);
 985         else
 986                 print("  attr %d (len %d)\n", attr->rta_type, len);
 987 }
 988
 989 static void rtnl_link(struct nlmsghdr *hdr)
 990 {
 991         struct ifinfomsg *msg;
 992         struct rtattr *attr;
 993         int bytes;
 994
 995         msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
 996         bytes = IFLA_PAYLOAD(hdr);
 997
 998         print("ifi_index %d ifi_flags 0x%04x", msg->ifi_index, msg->ifi_flags);
 999
1000         for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
1001                                         attr = RTA_NEXT(attr, bytes)) {
1002                 switch (attr->rta_type) {
1003                 case IFLA_ADDRESS:
1004                         print_ether(attr, "address");
1005                         break;
1006                 case IFLA_BROADCAST:
1007                         print_ether(attr, "broadcast");
1008                         break;
1009                 case IFLA_IFNAME:
1010                         print_string(attr, "ifname");
1011                         break;
1012                 case IFLA_MTU:
1013                         print_integer(attr, "mtu");
1014                         break;
1015                 case IFLA_LINK:
1016                         print_attr(attr, "link");
1017                         break;
1018                 case IFLA_QDISC:
1019                         print_attr(attr, "qdisc");
1020                         break;
1021                 case IFLA_STATS:
1022                         print_attr(attr, "stats");
1023                         break;
1024                 case IFLA_COST:
1025                         print_attr(attr, "cost");
1026                         break;
1027                 case IFLA_PRIORITY:
1028                         print_attr(attr, "priority");
1029                         break;
1030                 case IFLA_MASTER:
1031                         print_attr(attr, "master");
1032                         break;
1033                 case IFLA_WIRELESS:
1034                         print_attr(attr, "wireless");
1035                         break;
1036                 case IFLA_PROTINFO:
1037                         print_attr(attr, "protinfo");
1038                         break;
1039                 case IFLA_TXQLEN:
1040                         print_integer(attr, "txqlen");
1041                         break;
1042                 case IFLA_MAP:
1043                         print_attr(attr, "map");
1044                         break;
1045                 case IFLA_WEIGHT:
1046                         print_attr(attr, "weight");
1047                         break;
1048                 case IFLA_OPERSTATE:
1049                         print_byte(attr, "operstate");
1050                         break;
1051                 case IFLA_LINKMODE:
1052                         print_byte(attr, "linkmode");
1053                         break;
1054                 default:
1055                         print_attr(attr, NULL);
1056                         break;
1057                 }
1058         }
1059 }
1060
1061 static void rtnl_newlink(struct nlmsghdr *hdr)
1062 {
1063         struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
1064
1065         rtnl_link(hdr);
1066
1067         if (hdr->nlmsg_type == IFLA_WIRELESS)
1068                 connman_warn_once("Obsolete WEXT WiFi driver detected");
1069
1070         process_newlink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
1071                                 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
1072 }
1073
1074 static void rtnl_dellink(struct nlmsghdr *hdr)
1075 {
1076         struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
1077
1078         rtnl_link(hdr);
1079
1080         process_dellink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
1081                                 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
1082 }
1083
1084 static void rtnl_addr(struct nlmsghdr *hdr)
1085 {
1086         struct ifaddrmsg *msg;
1087         struct rtattr *attr;
1088         int bytes;
1089
1090         msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
1091         bytes = IFA_PAYLOAD(hdr);
1092
1093         print("ifa_family %d ifa_index %d", msg->ifa_family, msg->ifa_index);
1094
1095         for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
1096                                         attr = RTA_NEXT(attr, bytes)) {
1097                 switch (attr->rta_type) {
1098                 case IFA_ADDRESS:
1099                         print_inet(attr, "address", msg->ifa_family);
1100                         break;
1101                 case IFA_LOCAL:
1102                         print_inet(attr, "local", msg->ifa_family);
1103                         break;
1104                 case IFA_LABEL:
1105                         print_string(attr, "label");
1106                         break;
1107                 case IFA_BROADCAST:
1108                         print_inet(attr, "broadcast", msg->ifa_family);
1109                         break;
1110                 case IFA_ANYCAST:
1111                         print_attr(attr, "anycast");
1112                         break;
1113                 case IFA_CACHEINFO:
1114                         print_attr(attr, "cacheinfo");
1115                         break;
1116                 case IFA_MULTICAST:
1117                         print_attr(attr, "multicast");
1118                         break;
1119                 default:
1120                         print_attr(attr, NULL);
1121                         break;
1122                 }
1123         }
1124 }
1125
1126 static void rtnl_newaddr(struct nlmsghdr *hdr)
1127 {
1128         struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
1129
1130         rtnl_addr(hdr);
1131
1132         process_newaddr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
1133                                                 msg, IFA_PAYLOAD(hdr));
1134 }
1135
1136 static void rtnl_deladdr(struct nlmsghdr *hdr)
1137 {
1138         struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
1139
1140         rtnl_addr(hdr);
1141
1142         process_deladdr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
1143                                                 msg, IFA_PAYLOAD(hdr));
1144 }
1145
1146 static void rtnl_route(struct nlmsghdr *hdr)
1147 {
1148         struct rtmsg *msg;
1149         struct rtattr *attr;
1150         int bytes;
1151
1152         msg = (struct rtmsg *) NLMSG_DATA(hdr);
1153         bytes = RTM_PAYLOAD(hdr);
1154
1155         print("rtm_family %d rtm_table %d rtm_protocol %d",
1156                         msg->rtm_family, msg->rtm_table, msg->rtm_protocol);
1157         print("rtm_scope %d rtm_type %d rtm_flags 0x%04x",
1158                                 msg->rtm_scope, msg->rtm_type, msg->rtm_flags);
1159
1160         for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
1161                                         attr = RTA_NEXT(attr, bytes)) {
1162                 switch (attr->rta_type) {
1163                 case RTA_DST:
1164                         print_inet(attr, "dst", msg->rtm_family);
1165                         break;
1166                 case RTA_SRC:
1167                         print_inet(attr, "src", msg->rtm_family);
1168                         break;
1169                 case RTA_IIF:
1170                         print_string(attr, "iif");
1171                         break;
1172                 case RTA_OIF:
1173                         print_integer(attr, "oif");
1174                         break;
1175                 case RTA_GATEWAY:
1176                         print_inet(attr, "gateway", msg->rtm_family);
1177                         break;
1178                 case RTA_PRIORITY:
1179                         print_attr(attr, "priority");
1180                         break;
1181                 case RTA_PREFSRC:
1182                         print_inet(attr, "prefsrc", msg->rtm_family);
1183                         break;
1184                 case RTA_METRICS:
1185                         print_attr(attr, "metrics");
1186                         break;
1187                 case RTA_TABLE:
1188                         print_integer(attr, "table");
1189                         break;
1190                 default:
1191                         print_attr(attr, NULL);
1192                         break;
1193                 }
1194         }
1195 }
1196
1197 static bool is_route_rtmsg(struct rtmsg *msg)
1198 {
1199         if (msg->rtm_flags & RTM_F_CLONED)
1200                 return false;
1201
1202         if (msg->rtm_table != RT_TABLE_MAIN)
1203                 return false;
1204
1205         if (msg->rtm_protocol != RTPROT_BOOT &&
1206                         msg->rtm_protocol != RTPROT_KERNEL)
1207                 return false;
1208
1209         if (msg->rtm_type != RTN_UNICAST)
1210                 return false;
1211
1212         return true;
1213 }
1214
1215 static void rtnl_newroute(struct nlmsghdr *hdr)
1216 {
1217         struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
1218
1219         rtnl_route(hdr);
1220
1221         if (is_route_rtmsg(msg))
1222                 process_newroute(msg->rtm_family, msg->rtm_scope,
1223                                                 msg, RTM_PAYLOAD(hdr));
1224 }
1225
1226 static void rtnl_delroute(struct nlmsghdr *hdr)
1227 {
1228         struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
1229
1230         rtnl_route(hdr);
1231
1232         if (is_route_rtmsg(msg))
1233                 process_delroute(msg->rtm_family, msg->rtm_scope,
1234                                                 msg, RTM_PAYLOAD(hdr));
1235 }
1236
1237 static void *rtnl_nd_opt_rdnss(struct nd_opt_hdr *opt, guint32 *lifetime,
1238                                int *nr_servers)
1239 {
1240         guint32 *optint = (void *)opt;
1241
1242         if (opt->nd_opt_len < 3)
1243                 return NULL;
1244
1245         if (*lifetime > ntohl(optint[1]))
1246                 *lifetime = ntohl(optint[1]);
1247
1248         /* nd_opt_len is in units of 8 bytes. The header is 1 unit (8 bytes)
1249            and each address is another 2 units (16 bytes).
1250            So the number of addresses (given rounding) is nd_opt_len/2 */
1251         *nr_servers = opt->nd_opt_len / 2;
1252
1253         /* And they start 8 bytes into the packet, or two guint32s in. */
1254         return optint + 2;
1255 }
1256
1257 static const char **rtnl_nd_opt_dnssl(struct nd_opt_hdr *opt, guint32 *lifetime)
1258 {
1259         const char **domains = NULL;
1260         guint32 *optint = (void *)opt;
1261         unsigned char *optc = (void *)&optint[2];
1262         int data_len = (opt->nd_opt_len * 8) - 8;
1263         int nr_domains = 0;
1264         int i, tmp;
1265
1266         if (*lifetime > ntohl(optint[1]))
1267                 *lifetime = ntohl(optint[1]);
1268
1269         /* Turn it into normal strings by converting the length bytes into '.',
1270            and count how many search domains there are while we're at it. */
1271         i = 0;
1272         while (i < data_len) {
1273                 if (optc[i] > 0x3f) {
1274                         DBG("DNSSL contains compressed elements in violation of RFC6106");
1275                         return NULL;
1276                 }
1277
1278                 if (optc[i] == 0) {
1279                         nr_domains++;
1280                         i++;
1281                         /* Check for double zero */
1282                         if (i < data_len && optc[i] == 0)
1283                                 break;
1284                         continue;
1285                 }
1286
1287                 tmp = i;
1288                 i += optc[i] + 1;
1289
1290                 if (i >= data_len) {
1291                         DBG("DNSSL data overflows option length");
1292                         return NULL;
1293                 }
1294
1295                 optc[tmp] = '.';
1296         }
1297
1298         domains = g_try_new0(const char *, nr_domains + 1);
1299         if (!domains)
1300                 return NULL;
1301
1302         /* Now point to the normal strings, missing out the leading '.' that
1303            each of them will have now. */
1304         for (i = 0; i < nr_domains; i++) {
1305                 domains[i] = (char *)optc + 1;
1306                 optc += strlen((char *)optc) + 1;
1307         }
1308
1309         return domains;
1310 }
1311
1312 static void rtnl_newnduseropt(struct nlmsghdr *hdr)
1313 {
1314         struct nduseroptmsg *msg = (struct nduseroptmsg *) NLMSG_DATA(hdr);
1315         struct nd_opt_hdr *opt;
1316         guint32 lifetime = -1;
1317         const char **domains = NULL;
1318         struct in6_addr *servers = NULL;
1319         int i, nr_servers = 0;
1320         int msglen = msg->nduseropt_opts_len;
1321         int index;
1322
1323         DBG("family %d index %d len %d type %d code %d",
1324                 msg->nduseropt_family, msg->nduseropt_ifindex,
1325                 msg->nduseropt_opts_len, msg->nduseropt_icmp_type,
1326                 msg->nduseropt_icmp_code);
1327
1328         if (msg->nduseropt_family != AF_INET6 ||
1329                         msg->nduseropt_icmp_type != ND_ROUTER_ADVERT ||
1330                         msg->nduseropt_icmp_code != 0)
1331                 return;
1332
1333         index = msg->nduseropt_ifindex;
1334         if (index < 0)
1335                 return;
1336
1337 #if defined TIZEN_EXT
1338         struct connman_service *service;
1339         enum connman_service_state state;
1340         enum connman_dnsconfig_method ipv6_dns_method;
1341
1342         service = __connman_service_lookup_from_index(index);
1343         if (!service) {
1344                 DBG("Invalid service");
1345                 return;
1346         }
1347
1348         DBG("service: %p index: %d\n", service, index);
1349
1350         if (connman_setting_get_bool("SingleConnectedTechnology") == TRUE) {
1351                 state = __connman_service_ipconfig_get_state(service, CONNMAN_IPCONFIG_TYPE_IPV6);
1352                 if (state != CONNMAN_SERVICE_STATE_ASSOCIATION &&
1353                                 state != CONNMAN_SERVICE_STATE_CONFIGURATION &&
1354                                 state != CONNMAN_SERVICE_STATE_READY &&
1355                                 state != CONNMAN_SERVICE_STATE_ONLINE) {
1356                         DBG("Service state[%d] is not connecting/connected", state);
1357                         return;
1358                 }
1359         }
1360
1361         ipv6_dns_method = connman_service_get_ipv6_dns_method(service);
1362         if (ipv6_dns_method != CONNMAN_DNSCONFIG_METHOD_DHCP) {
1363                 DBG("IPv6 DNS method is not Auto ignore RA!!! [DNS method: %d]", ipv6_dns_method);
1364                 return;
1365         }
1366 #endif
1367
1368         for (opt = (void *)&msg[1];
1369                         msglen > 0;
1370                         msglen -= opt->nd_opt_len * 8,
1371                         opt = ((void *)opt) + opt->nd_opt_len*8) {
1372
1373                 DBG("remaining %d nd opt type %d len %d\n",
1374                         msglen, opt->nd_opt_type, opt->nd_opt_len);
1375
1376                 if (opt->nd_opt_type == 25) { /* ND_OPT_RDNSS */
1377                         char buf[40];
1378 #if defined TIZEN_EXT
1379                         struct connman_service *service;
1380
1381                         service = __connman_service_lookup_from_index(index);
1382                         DBG("service: %p\n",service);
1383 #endif
1384                         servers = rtnl_nd_opt_rdnss(opt, &lifetime,
1385                                                                 &nr_servers);
1386                         for (i = 0; i < nr_servers; i++) {
1387                                 if (!inet_ntop(AF_INET6, servers + i, buf,
1388                                                                 sizeof(buf)))
1389                                         continue;
1390
1391 #if defined TIZEN_EXT
1392                                 __connman_service_nameserver_remove(service,
1393                                                 buf, false,
1394                                                 CONNMAN_IPCONFIG_TYPE_IPV6);
1395                                 __connman_service_nameserver_append(service,
1396                                                 buf, false,
1397                                                 CONNMAN_IPCONFIG_TYPE_IPV6);
1398 #endif
1399                                 connman_resolver_append_lifetime(index,
1400                                                         NULL, buf, lifetime);
1401                         }
1402
1403                 } else if (opt->nd_opt_type == 31) { /* ND_OPT_DNSSL */
1404                         g_free(domains);
1405
1406                         domains = rtnl_nd_opt_dnssl(opt, &lifetime);
1407                         for (i = 0; domains && domains[i]; i++)
1408                                 connman_resolver_append_lifetime(index,
1409                                                 domains[i], NULL, lifetime);
1410                 }
1411         }
1412
1413         g_free(domains);
1414 }
1415
1416 static const char *type2string(uint16_t type)
1417 {
1418         switch (type) {
1419         case NLMSG_NOOP:
1420                 return "NOOP";
1421         case NLMSG_ERROR:
1422                 return "ERROR";
1423         case NLMSG_DONE:
1424                 return "DONE";
1425         case NLMSG_OVERRUN:
1426                 return "OVERRUN";
1427         case RTM_GETLINK:
1428                 return "GETLINK";
1429         case RTM_NEWLINK:
1430                 return "NEWLINK";
1431         case RTM_DELLINK:
1432                 return "DELLINK";
1433         case RTM_GETADDR:
1434                 return "GETADDR";
1435         case RTM_NEWADDR:
1436                 return "NEWADDR";
1437         case RTM_DELADDR:
1438                 return "DELADDR";
1439         case RTM_GETROUTE:
1440                 return "GETROUTE";
1441         case RTM_NEWROUTE:
1442                 return "NEWROUTE";
1443         case RTM_DELROUTE:
1444                 return "DELROUTE";
1445         case RTM_NEWNDUSEROPT:
1446                 return "NEWNDUSEROPT";
1447         default:
1448                 return "UNKNOWN";
1449         }
1450 }
1451
1452 static GIOChannel *channel = NULL;
1453 static guint channel_watch = 0;
1454
1455 struct rtnl_request {
1456         struct nlmsghdr hdr;
1457         struct rtgenmsg msg;
1458 };
1459 #define RTNL_REQUEST_SIZE  (sizeof(struct nlmsghdr) + sizeof(struct rtgenmsg))
1460
1461 static GSList *request_list = NULL;
1462 static guint32 request_seq = 0;
1463
1464 static struct rtnl_request *find_request(guint32 seq)
1465 {
1466         GSList *list;
1467
1468         for (list = request_list; list; list = list->next) {
1469                 struct rtnl_request *req = list->data;
1470
1471                 if (req->hdr.nlmsg_seq == seq)
1472                         return req;
1473         }
1474
1475         return NULL;
1476 }
1477
1478 static int send_request(struct rtnl_request *req)
1479 {
1480         struct sockaddr_nl addr;
1481         int sk;
1482
1483         DBG("%s len %d type %d flags 0x%04x seq %d",
1484                                 type2string(req->hdr.nlmsg_type),
1485                                 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1486                                 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1487
1488         sk = g_io_channel_unix_get_fd(channel);
1489
1490         memset(&addr, 0, sizeof(addr));
1491         addr.nl_family = AF_NETLINK;
1492
1493         return sendto(sk, req, req->hdr.nlmsg_len, 0,
1494                                 (struct sockaddr *) &addr, sizeof(addr));
1495 }
1496
1497 static int queue_request(struct rtnl_request *req)
1498 {
1499         request_list = g_slist_append(request_list, req);
1500
1501         if (g_slist_length(request_list) > 1)
1502                 return 0;
1503
1504         return send_request(req);
1505 }
1506
1507 static int process_response(guint32 seq)
1508 {
1509         struct rtnl_request *req;
1510
1511         DBG("seq %d", seq);
1512
1513         req = find_request(seq);
1514         if (req) {
1515                 request_list = g_slist_remove(request_list, req);
1516                 g_free(req);
1517         }
1518
1519         req = g_slist_nth_data(request_list, 0);
1520         if (!req)
1521                 return 0;
1522
1523         return send_request(req);
1524 }
1525
1526 static void rtnl_message(void *buf, size_t len)
1527 {
1528         while (len > 0) {
1529                 struct nlmsghdr *hdr = buf;
1530                 struct nlmsgerr *err;
1531
1532                 if (!NLMSG_OK(hdr, len))
1533                         break;
1534
1535                 DBG("%s len %u type %u flags 0x%04x seq %u pid %u",
1536                                         type2string(hdr->nlmsg_type),
1537                                         hdr->nlmsg_len, hdr->nlmsg_type,
1538                                         hdr->nlmsg_flags, hdr->nlmsg_seq,
1539                                         hdr->nlmsg_pid);
1540
1541                 switch (hdr->nlmsg_type) {
1542                 case NLMSG_NOOP:
1543                 case NLMSG_OVERRUN:
1544                         return;
1545                 case NLMSG_DONE:
1546                         process_response(hdr->nlmsg_seq);
1547                         return;
1548                 case NLMSG_ERROR:
1549                         err = NLMSG_DATA(hdr);
1550                         DBG("error %d (%s)", -err->error,
1551                                                 strerror(-err->error));
1552                         return;
1553                 case RTM_NEWLINK:
1554                         rtnl_newlink(hdr);
1555                         break;
1556                 case RTM_DELLINK:
1557                         rtnl_dellink(hdr);
1558                         break;
1559                 case RTM_NEWADDR:
1560                         rtnl_newaddr(hdr);
1561                         break;
1562                 case RTM_DELADDR:
1563                         rtnl_deladdr(hdr);
1564                         break;
1565                 case RTM_NEWROUTE:
1566                         rtnl_newroute(hdr);
1567                         break;
1568                 case RTM_DELROUTE:
1569                         rtnl_delroute(hdr);
1570                         break;
1571                 case RTM_NEWNDUSEROPT:
1572                         rtnl_newnduseropt(hdr);
1573                         break;
1574                 }
1575
1576                 len -= hdr->nlmsg_len;
1577                 buf += hdr->nlmsg_len;
1578         }
1579 }
1580
1581 static gboolean netlink_event(GIOChannel *chan, GIOCondition cond, gpointer data)
1582 {
1583         unsigned char buf[4096];
1584         struct sockaddr_nl nladdr;
1585         socklen_t addr_len = sizeof(nladdr);
1586         ssize_t status;
1587         int fd;
1588
1589         if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1590                 return FALSE;
1591
1592         memset(buf, 0, sizeof(buf));
1593         memset(&nladdr, 0, sizeof(nladdr));
1594
1595         fd = g_io_channel_unix_get_fd(chan);
1596
1597         status = recvfrom(fd, buf, sizeof(buf), 0,
1598                        (struct sockaddr *) &nladdr, &addr_len);
1599         if (status < 0) {
1600                 if (errno == EINTR || errno == EAGAIN)
1601                         return TRUE;
1602
1603                 return FALSE;
1604         }
1605
1606         if (status == 0)
1607                 return FALSE;
1608
1609         if (nladdr.nl_pid != 0) { /* not sent by kernel, ignore */
1610                 DBG("Received msg from %u, ignoring it", nladdr.nl_pid);
1611                 return TRUE;
1612         }
1613
1614         rtnl_message(buf, status);
1615
1616         return TRUE;
1617 }
1618
1619 static int send_getlink(void)
1620 {
1621         struct rtnl_request *req;
1622
1623         DBG("");
1624
1625         req = g_try_malloc0(RTNL_REQUEST_SIZE);
1626         if (!req)
1627                 return -ENOMEM;
1628
1629         req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1630         req->hdr.nlmsg_type = RTM_GETLINK;
1631         req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1632         req->hdr.nlmsg_pid = 0;
1633         req->hdr.nlmsg_seq = request_seq++;
1634         req->msg.rtgen_family = AF_INET;
1635
1636         return queue_request(req);
1637 }
1638
1639 static int send_getaddr(void)
1640 {
1641         struct rtnl_request *req;
1642
1643         DBG("");
1644
1645         req = g_try_malloc0(RTNL_REQUEST_SIZE);
1646         if (!req)
1647                 return -ENOMEM;
1648
1649         req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1650         req->hdr.nlmsg_type = RTM_GETADDR;
1651         req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1652         req->hdr.nlmsg_pid = 0;
1653         req->hdr.nlmsg_seq = request_seq++;
1654         req->msg.rtgen_family = AF_INET;
1655
1656         return queue_request(req);
1657 }
1658
1659 static int send_getroute(void)
1660 {
1661         struct rtnl_request *req;
1662
1663         DBG("");
1664
1665         req = g_try_malloc0(RTNL_REQUEST_SIZE);
1666         if (!req)
1667                 return -ENOMEM;
1668
1669         req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1670         req->hdr.nlmsg_type = RTM_GETROUTE;
1671         req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1672         req->hdr.nlmsg_pid = 0;
1673         req->hdr.nlmsg_seq = request_seq++;
1674         req->msg.rtgen_family = AF_INET;
1675
1676         return queue_request(req);
1677 }
1678
1679 static gboolean update_timeout_cb(gpointer user_data)
1680 {
1681         __connman_rtnl_request_update();
1682
1683         return TRUE;
1684 }
1685
1686 static void update_interval_callback(guint min)
1687 {
1688         if (update_timeout > 0)
1689                 g_source_remove(update_timeout);
1690
1691         if (min < G_MAXUINT) {
1692                 update_interval = min;
1693                 update_timeout = g_timeout_add_seconds(update_interval,
1694                                                 update_timeout_cb, NULL);
1695         } else {
1696                 update_timeout = 0;
1697                 update_interval = G_MAXUINT;
1698         }
1699 }
1700
1701 static gint compare_interval(gconstpointer a, gconstpointer b)
1702 {
1703         guint val_a = GPOINTER_TO_UINT(a);
1704         guint val_b = GPOINTER_TO_UINT(b);
1705
1706         return val_a - val_b;
1707 }
1708
1709 unsigned int __connman_rtnl_update_interval_add(unsigned int interval)
1710 {
1711         guint min;
1712
1713         if (interval == 0)
1714                 return 0;
1715
1716         update_list = g_slist_insert_sorted(update_list,
1717                         GUINT_TO_POINTER(interval), compare_interval);
1718
1719         min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1720         if (min < update_interval) {
1721                 update_interval_callback(min);
1722                 __connman_rtnl_request_update();
1723         }
1724
1725         return update_interval;
1726 }
1727
1728 unsigned int __connman_rtnl_update_interval_remove(unsigned int interval)
1729 {
1730         guint min = G_MAXUINT;
1731
1732         if (interval == 0)
1733                 return 0;
1734
1735         update_list = g_slist_remove(update_list, GINT_TO_POINTER(interval));
1736
1737         if (update_list)
1738                 min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1739
1740         if (min > update_interval)
1741                 update_interval_callback(min);
1742
1743         return min;
1744 }
1745
1746 int __connman_rtnl_request_update(void)
1747 {
1748         return send_getlink();
1749 }
1750
1751 int __connman_rtnl_init(void)
1752 {
1753         struct sockaddr_nl addr;
1754         int sk;
1755
1756         DBG("");
1757
1758         interface_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1759                                                         NULL, free_interface);
1760
1761         sk = socket(PF_NETLINK, SOCK_DGRAM | SOCK_CLOEXEC, NETLINK_ROUTE);
1762         if (sk < 0)
1763                 return -1;
1764
1765         memset(&addr, 0, sizeof(addr));
1766         addr.nl_family = AF_NETLINK;
1767         addr.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV4_ROUTE |
1768                                 RTMGRP_IPV6_IFADDR | RTMGRP_IPV6_ROUTE |
1769                                 (1<<(RTNLGRP_ND_USEROPT-1));
1770
1771         if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
1772                 close(sk);
1773                 return -1;
1774         }
1775
1776         channel = g_io_channel_unix_new(sk);
1777         g_io_channel_set_close_on_unref(channel, TRUE);
1778
1779         g_io_channel_set_encoding(channel, NULL, NULL);
1780         g_io_channel_set_buffered(channel, FALSE);
1781
1782         channel_watch = g_io_add_watch(channel,
1783                                 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
1784                                 netlink_event, NULL);
1785
1786         return 0;
1787 }
1788
1789 void __connman_rtnl_start(void)
1790 {
1791         DBG("");
1792
1793         send_getlink();
1794         send_getaddr();
1795         send_getroute();
1796 }
1797
1798 void __connman_rtnl_cleanup(void)
1799 {
1800         GSList *list;
1801
1802         DBG("");
1803
1804         for (list = watch_list; list; list = list->next) {
1805                 struct watch_data *watch = list->data;
1806
1807                 DBG("removing watch %d", watch->id);
1808
1809                 g_free(watch);
1810                 list->data = NULL;
1811         }
1812
1813         g_slist_free(watch_list);
1814         watch_list = NULL;
1815
1816         g_slist_free(update_list);
1817         update_list = NULL;
1818
1819         for (list = request_list; list; list = list->next) {
1820                 struct rtnl_request *req = list->data;
1821
1822                 DBG("%s len %d type %d flags 0x%04x seq %d",
1823                                 type2string(req->hdr.nlmsg_type),
1824                                 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1825                                 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1826
1827                 g_free(req);
1828                 list->data = NULL;
1829         }
1830
1831         g_slist_free(request_list);
1832         request_list = NULL;
1833
1834         if (channel_watch) {
1835                 g_source_remove(channel_watch);
1836                 channel_watch = 0;
1837         }
1838
1839         g_io_channel_shutdown(channel, TRUE, NULL);
1840         g_io_channel_unref(channel);
1841
1842         channel = NULL;
1843
1844         g_hash_table_destroy(interface_list);
1845 }