bt-ipsp/bt-ipsp.c

   1 /*
   2  * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *              http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 #include <dlog.h>
  19 #include <gio/gio.h>
  20
  21 #include <stdio.h>
  22 #include <unistd.h>
  23 #include <string.h>
  24 #include <fcntl.h>
  25
  26 #include "bt-ipsp.h"
  27 #include "bluetooth-api.h"
  28 #include <net_connection.h>
  29 #include <sys/socket.h>
  30 #include <net/if.h>
  31 #include <netinet/in.h>
  32 #include <arpa/inet.h>
  33 #include <sys/ioctl.h>
  34 #include <bluetooth_type.h>
  35
  36 #undef LOG_TAG
  37 #define LOG_TAG "BLUETOOTH_IPSP"
  38
  39 #define BT_INFO(fmt, arg...) SLOGI(fmt, ##arg)
  40 #define BT_ERR(fmt, arg...) SLOGE(fmt, ##arg)
  41 #define BT_DBG(fmt, arg...) SLOGD(fmt, ##arg)
  42
  43 static GDBusConnection *service_gconn;
  44 static connection_h net_connection = NULL;
  45 static connection_profile_h tethered_prof = NULL;
  46 static pid_t dnsmasq_pid = 0;
  47 static char dns_addr[INET_ADDRSTRLEN] = "0.0.0.0";
  48
  49 struct in6_ifreq {
  50         struct in6_addr ifr6_addr;
  51         __u32 ifr6_prefixlen;
  52         unsigned int ifr6_ifindex;
  53 };
  54
  55 static const gchar bt_ipsp_introspection_xml[] =
  56 "<node name='/'>"
  57 "  <interface name='org.projectx.bt_ipsp'>"
  58 "     <method name='EnableIpsp'>"
  59 "     </method>"
  60 "     <method name='SetIpv6Addr'>"
  61 "          <arg type='s' name='ifname' direction='in'/>"
  62 "          <arg type='s' name='address' direction='in'/>"
  63 "     </method>"
  64 "     <method name='RecoverAdapter'>"
  65 "     </method>"
  66 "     <method name='ResetAdapter'>"
  67 "     </method>"
  68 "     <method name='EnableAdapterLe'>"
  69 "     </method>"
  70 "     <method name='DisableAdapterLe'>"
  71 "     </method>"
  72 "     <method name='EnableCore'>"
  73 "     </method>"
  74 "         <method name='SetTransferValue'>"
  75 "          <arg type='b' name='value' direction='in'/>"
  76 "         </method>"
  77 "     <method name='FactoryTestMode'>"
  78 "          <arg type='s' name='type' direction='in'/>"
  79 "          <arg type='s' name='arg' direction='in'/>"
  80 "          <arg type='i' name='ret' direction='out'/>"
  81 "     </method>"
  82 " </interface>"
  83 "</node>";
  84
  85 static guint obj_id, sig_id1, sig_id2, sig_id3;
  86
  87
  88 static GMainLoop *main_loop;
  89
  90 void _bt_ipsp_gdbus_deinit_proxys(void)
  91 {
  92         BT_DBG("+");
  93
  94         if (service_gconn) {
  95                 g_object_unref(service_gconn);
  96                 service_gconn = NULL;
  97         }
  98
  99         BT_DBG("-");
 100 }
 101
 102 void _bt_ipsp_terminate(void)
 103 {
 104         _bt_ipsp_gdbus_deinit_proxys();
 105         if (main_loop) {
 106                 g_main_loop_quit(main_loop);
 107         } else {
 108                 BT_DBG("Terminating bt-core daemon");
 109                 exit(0);
 110         }
 111 }
 112
 113 GDBusConnection * _bt_ipsp_get_gdbus_connection(void)
 114 {
 115         GError *err = NULL;
 116
 117         if (service_gconn == NULL)
 118                 service_gconn = g_bus_get_sync(G_BUS_TYPE_SYSTEM, NULL, &err);
 119
 120         if (!service_gconn) {
 121                 if (err) {
 122                         BT_ERR("Unable to connect to dbus: %s", err->message);
 123                         g_clear_error(&err);
 124                 }
 125                 return NULL;
 126         }
 127
 128         return service_gconn;
 129 }
 130
 131
 132 void  _bt_ipsp_unregister_dbus(void)
 133 {
 134         GDBusConnection *conn;
 135
 136         BT_DBG("");
 137
 138         conn = _bt_ipsp_get_gdbus_connection();
 139         if (!conn)
 140                 return;
 141
 142         if (obj_id > 0) {
 143                 g_dbus_connection_unregister_object(conn, obj_id);
 144                 obj_id = 0;
 145         }
 146
 147         if (sig_id1 > 0) {
 148                 g_dbus_connection_signal_unsubscribe(conn, sig_id1);
 149                 sig_id1 = 0;
 150         }
 151         if (sig_id2 > 0) {
 152                 g_dbus_connection_signal_unsubscribe(conn, sig_id2);
 153                 sig_id2 = 0;
 154         }
 155         if (sig_id3 > 0) {
 156                 g_dbus_connection_signal_unsubscribe(conn, sig_id3);
 157                 sig_id3 = 0;
 158         }
 159 }
 160
 161 static void __bt_ipsp_sigterm_handler(int signo)
 162 {
 163         BT_DBG("Got the signal: %d", signo);
 164
 165         _bt_ipsp_terminate();
 166 }
 167
 168 static void __bt_ipsp_get_network_interface_name(char **if_name)
 169 {
 170         if (if_name == NULL) {
 171                 BT_ERR("if_name is NULL\n");
 172                 return;
 173         }
 174
 175         if (tethered_prof == NULL) {
 176                 BT_ERR("tethered prof is NULL");
 177                 return;
 178         }
 179
 180         int ret = 0;
 181
 182         connection_profile_refresh(tethered_prof);
 183
 184         ret = connection_profile_get_network_interface_name(tethered_prof, if_name);
 185         if (ret != CONNECTION_ERROR_NONE) {
 186                 BT_ERR("connection_profile_get_network_interface_name is failed : 0x%X\n", ret);
 187                 return;
 188         }
 189
 190         BT_DBG("network if name : %s", *if_name);
 191
 192         if (strlen(*if_name) == 0) {
 193                 BT_ERR("if_name is zero length\n");
 194                 free(*if_name);
 195                 *if_name = NULL;
 196                 return;
 197         }
 198
 199         return;
 200 }
 201
 202 gboolean __bt_ipsp_get_network_ipv6_address(const char *if_name, mobile_ap_ipv6_scope_e ip_scope, gchar **ip)
 203 {
 204         FILE *fd;
 205         char addr[8][5];
 206         char name[MH_MAX_INTERFACE_NAME_LEN] = {0,};
 207         char copied[MH_MAX_IPV6_ADDRESS_STR_LEN] = {0,};
 208         int if_idx, prefix_len, scope, if_flag;
 209
 210         fd = fopen(MH_IF_INET6_PATH, "r");
 211         if (fd == NULL) {
 212                 BT_ERR("Failed to open file!!");
 213                 return FALSE;
 214         }
 215
 216         while (fscanf(fd, "%4s%4s%4s%4s%4s%4s%4s%4s %2x %d %d %2x %19s",
 217                                 addr[0], addr[1], addr[2], addr[3],
 218                                 addr[4], addr[5], addr[6], addr[7],
 219                                 &if_idx, &prefix_len, &scope, &if_flag, name) != EOF) {
 220
 221                 if (strncmp(name, if_name, strlen(if_name)) != 0)
 222                         continue;
 223
 224                 if (scope != ip_scope)
 225                         continue;
 226
 227                 snprintf(copied, sizeof(copied), "%s:%s:%s:%s:%s:%s:%s:%s",
 228                                 addr[0], addr[1], addr[2], addr[3],
 229                                 addr[4], addr[5], addr[6], addr[7]);
 230
 231                 *ip = g_strdup(copied);
 232
 233                 BT_DBG("IP (%s)", *ip);
 234                 break;
 235         }
 236
 237         if (fd)
 238                 fclose(fd);
 239
 240         return TRUE;
 241 }
 242
 243 int __bt_ipsp_create_ipv6_address(char *ifname, char **ipv6_address)
 244 {
 245         BT_DBG("++");
 246         gchar *network_if_name = NULL;
 247         gchar *link_addr = NULL;
 248         gchar *network_addr = NULL;
 249         gchar *prefix = NULL;
 250         gchar *if_id = NULL;
 251         char copied[MH_MAX_IPV6_ADDRESS_STR_LEN] = {0, };
 252         gchar *link_addr_cpy = NULL;
 253         int i = 0;
 254
 255         __bt_ipsp_get_network_interface_name(&network_if_name);
 256         __bt_ipsp_get_network_ipv6_address(ifname, MOBILE_AP_IPV6_SCOPE_LINK, &link_addr);
 257
 258         if (network_if_name) {
 259                 __bt_ipsp_get_network_ipv6_address(network_if_name, MOBILE_AP_IPV6_SCOPE_GLOBAL, &network_addr);
 260                 g_free(network_if_name);
 261         }
 262
 263         if (link_addr == NULL || network_addr == NULL) {
 264                 BT_DBG("address is NULL");
 265                 g_free(link_addr);
 266                 g_free(network_addr);
 267                 return BT_ERROR_OPERATION_FAILED;
 268         }
 269
 270         prefix = g_strndup(network_addr, 19);
 271         g_free(network_addr);
 272
 273         link_addr_cpy = link_addr;
 274
 275         for (i = 0; i < 4; i++) {
 276                 strtok_r(link_addr_cpy, ":", &if_id);
 277                 link_addr_cpy = if_id;
 278         }
 279         snprintf(copied, sizeof(copied), "%s:%s", prefix, if_id);
 280
 281         *ipv6_address = g_strdup(copied);
 282
 283         BT_DBG("Created IPv6 address [%s]", *ipv6_address);
 284         g_free(link_addr);
 285         g_free(prefix);
 286         BT_DBG("--");
 287         return BT_ERROR_NONE;
 288 }
 289
 290 int __bt_ipsp_set_ipv6_address(const char *if_name, char *ipv6_addr)
 291 {
 292         BT_DBG("++");
 293         struct ifreq ifr;
 294         struct sockaddr_in6 addr;
 295         int sock_fd;
 296         struct in6_ifreq ifr6;
 297
 298         sock_fd = socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP);
 299         if (sock_fd == -1) {
 300                 BT_ERR("failed to open socket for ipv6");
 301                 return BT_ERROR_OPERATION_FAILED;
 302         }
 303
 304         g_strlcpy(ifr.ifr_name, if_name, IFNAMSIZ);
 305
 306         memset(&addr, 0, sizeof(struct sockaddr_in6));
 307         addr.sin6_family = AF_INET6;
 308         addr.sin6_port = 0;
 309
 310         if (inet_pton(AF_INET6, ipv6_addr, (void *)&addr.sin6_addr) <= 0) {
 311                 BT_ERR("Bad address!!");
 312                 close(sock_fd);
 313                 return BT_ERROR_OPERATION_FAILED;
 314         }
 315
 316         memcpy((char *)&ifr6.ifr6_addr, (char *)&addr.sin6_addr, sizeof(struct in6_addr));
 317
 318         if (ioctl(sock_fd, SIOGIFINDEX, &ifr) < 0) {
 319                 BT_ERR("ioctl failed...!!!\n");
 320                 close(sock_fd);
 321                 return BT_ERROR_OPERATION_FAILED;
 322         }
 323
 324         ifr6.ifr6_ifindex = ifr.ifr_ifindex;
 325         ifr6.ifr6_prefixlen = 64;
 326
 327         if (ioctl(sock_fd, SIOCSIFADDR, &ifr6) < 0) {
 328                 BT_ERR("ioctl failed...!!!\n");
 329                 close(sock_fd);
 330                 return BT_ERROR_OPERATION_FAILED;
 331         }
 332
 333         ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
 334
 335         if (ioctl(sock_fd, SIOCSIFFLAGS, &ifr) < 0) {
 336                 BT_ERR("ioctl failed...!!!\n");
 337                 close(sock_fd);
 338                 return BT_ERROR_OPERATION_FAILED;
 339         }
 340
 341         close(sock_fd);
 342         BT_DBG("--");
 343
 344         return BT_ERROR_NONE;
 345
 346 }
 347
 348
 349
 350 void __bt_ipsp_connection_state_changed_cb(int result, bool connected, const char *remote_address,
 351                 const char *iface_name, void *user_data)
 352 {
 353         BT_DBG("result: %d", result);
 354         BT_DBG("Connected : %d", connected);
 355         BT_DBG("Remote BT address : %s", remote_address);
 356         BT_DBG("Interface name : %s", remote_address);
 357 }
 358
 359 static int __enable_ipv6_forwarding(void)
 360 {
 361         BT_DBG("++");
 362         int fd = -1;
 363
 364         fd = open(IPV6_FORWARDING, O_WRONLY);
 365         if (fd < 0) {
 366                 BT_ERR("open failed\n");
 367                 return BT_ERROR_OPERATION_FAILED;
 368         }
 369
 370         if (write(fd, "1", 1) != 1) {
 371                 BT_ERR("write failed\n");
 372                 close(fd);
 373                 return BT_ERROR_OPERATION_FAILED;
 374         }
 375         close(fd);
 376
 377         BT_DBG("--");
 378         return BT_ERROR_NONE;
 379 }
 380
 381 static int __enable_ipv6_proxy_ndp(void)
 382 {
 383         BT_DBG("++");
 384         int fd = -1;
 385
 386         fd = open(IPV6_PROXY_NDP, O_WRONLY);
 387         if (fd < 0) {
 388                 BT_ERR("open failed\n");
 389                 return BT_ERROR_OPERATION_FAILED;
 390         }
 391
 392         if (write(fd, "1", 1) != 1) {
 393                 BT_ERR("write failed\n");
 394                 close(fd);
 395                 return BT_ERROR_OPERATION_FAILED;
 396         }
 397         close(fd);
 398
 399         BT_DBG("--");
 400         return BT_ERROR_NONE;
 401 }
 402
 403 int __bt_ipsp_execute_dhcp6_server(void)
 404 {
 405         BT_DBG("++");
 406         char buf[DNSMASQ_CONF_LEN] = "";
 407         FILE *fp = NULL;
 408         pid_t pid;
 409         gchar *network_if_name = NULL;
 410         gchar *network_addr = NULL;
 411         gchar *address = NULL;
 412
 413         if (remove(DNSMASQ_LEASES_FILE) < 0)
 414                 BT_ERR("Failed to remove %s", DNSMASQ_LEASES_FILE);
 415
 416         if (dnsmasq_pid == 0) {
 417                 fp = fopen(DNSMASQ_CONF_FILE, "w");
 418                 if (NULL == fp) {
 419                         BT_ERR("Could not create the file.\n");
 420                         return BT_ERROR_OPERATION_FAILED;
 421                 }
 422
 423                 __bt_ipsp_get_network_interface_name(&network_if_name);
 424                 if (network_if_name == NULL) {
 425                         BT_ERR("Failed to get network interface");
 426                         fclose(fp);
 427                         return BT_ERROR_OPERATION_FAILED;
 428                 }
 429
 430                 __bt_ipsp_get_network_ipv6_address(network_if_name, MOBILE_AP_IPV6_SCOPE_GLOBAL, &network_addr);
 431
 432                 address = g_strndup(network_addr, 19);
 433                 snprintf(buf, DNSMASQ_CONF_LEN, DNSMASQ_CONF6, dns_addr, address);
 434                 fputs(buf, fp);
 435                 g_free(network_if_name);
 436                 g_free(network_addr);
 437                 g_free(address);
 438                 fclose(fp);
 439
 440                 pid = fork();
 441                 if (pid < 0) {
 442                         BT_ERR("fork failed\n");
 443                         return BT_ERROR_OPERATION_FAILED;
 444                 }
 445
 446                 if (pid == 0) {
 447                         /* -d : Debug mode
 448                          * -p : DNS port
 449                          * -C file : Configuration file path
 450                          */
 451                         if (execl("/usr/bin/dnsmasq", "/usr/bin/dnsmasq", "-d",
 452                                                 "-p", "0", "-C", DNSMASQ_CONF_FILE,
 453                                                 (char *)NULL)) {
 454                                 BT_ERR("execl failed\n");
 455                         }
 456
 457                         BT_ERR("Should not get here!");
 458                         return BT_ERROR_OPERATION_FAILED;
 459                 }
 460
 461                 dnsmasq_pid = pid;
 462         } else {
 463                 BT_DBG("DNS-SERVER is already running.\n");
 464         }
 465
 466         BT_DBG("--");
 467         return BT_ERROR_NONE;
 468
 469 }
 470
 471 static void __generate_eui64_address(char *hw_addr, char **eui64_addr)
 472 {
 473         char addr[6][3];
 474         char addr64[20] = {0,};
 475         char *copied = g_strdup(hw_addr);
 476         char *copied_origin = NULL;
 477         char *ptr = NULL;
 478         unsigned int hex = 0;
 479         int i;
 480
 481         BT_DBG("+");
 482         copied_origin = copied;
 483
 484         for (i = 0; i < 6; i++) {
 485                 strtok_r(copied, ":", &ptr);
 486                 if (sizeof(addr[i]) <= strlen(copied)) {
 487                         strncpy(addr[i], copied, sizeof(addr[i]) - 1);
 488                         addr[i][(int)(sizeof(addr[i]) - 1)] = '\0';
 489                 } else {
 490                         strncpy(addr[i], copied, strlen(copied));
 491                         addr[i][(int)strlen(copied)] = '\0';
 492                 }
 493
 494                 BT_DBG("copied/ptr (%s/%s)", copied, ptr);
 495                 BT_DBG("addr(%s)", addr[i]);
 496                 copied = ptr;
 497         }
 498
 499         BT_DBG("----------");
 500         sscanf(addr[0], "%x", &hex);
 501         BT_DBG("+++");
 502         /* Invert 7th bit */
 503         hex ^= 2;
 504         BT_DBG("Inverted bit(%x)", hex);
 505         snprintf(addr64, sizeof(addr64), "%x%s:%sff:fe%s:%s%s",
 506                         hex, addr[1], addr[2], addr[3], addr[4], addr[5]);
 507
 508         BT_DBG("addr64(%s)", addr64);
 509         *eui64_addr = g_strdup(addr64);
 510
 511         BT_DBG("Generated EUI-64 address (%s)", *eui64_addr);
 512         g_free(copied_origin);
 513
 514         BT_DBG("-");
 515 }
 516
 517 int __bt_ipsp_create_ipv6_remote_address(char *remote_address, char **ipv6_address)
 518 {
 519         BT_DBG("++");
 520         gchar *eui64_addr = NULL;
 521         gchar *network_addr = NULL;
 522         gchar *network_if_name = NULL;
 523         gchar *prefix = NULL;
 524         char copied[MH_MAX_IPV6_ADDRESS_STR_LEN] = {0, };
 525
 526         __generate_eui64_address(remote_address, &eui64_addr);
 527         if (eui64_addr == NULL) {
 528                 BT_ERR("Failed to generate EUI-64 ID!!");
 529                 return BT_ERROR_OPERATION_FAILED;
 530         }
 531
 532         __bt_ipsp_get_network_interface_name(&network_if_name);
 533         if (network_if_name == NULL) {
 534                 BT_ERR("Failed to get network interface");
 535                 g_free(eui64_addr);
 536                 return BT_ERROR_OPERATION_FAILED;
 537         }
 538
 539         __bt_ipsp_get_network_ipv6_address(network_if_name, MOBILE_AP_IPV6_SCOPE_GLOBAL, &network_addr);
 540         g_free(network_if_name);
 541         if (network_addr == NULL) {
 542                 BT_ERR("Failed to get network address!!");
 543                 g_free(eui64_addr);
 544                 return BT_ERROR_OPERATION_FAILED;
 545         }
 546
 547         prefix = g_strndup(network_addr, 19);
 548         snprintf(copied, sizeof(copied), "%s:%s", prefix, eui64_addr);
 549         *ipv6_address = g_strdup(copied);
 550         BT_DBG("remote device ipv6 addr : %s", *ipv6_address);
 551
 552         g_free(prefix);
 553         g_free(eui64_addr);
 554         g_free(network_addr);
 555         BT_DBG("--");
 556         return BT_ERROR_NONE;
 557 }
 558
 559 static int _execute_ip_command(const char *ip_args)
 560 {
 561         if (ip_args == NULL) {
 562                 BT_ERR("Invalid param\n");
 563                 return -1;
 564         }
 565
 566         int status = 0;
 567         int exit_status = 0;
 568         pid_t pid = 0;
 569         gchar **args = NULL;
 570         char ip_cmd[MAX_BUF_SIZE] = {0, };
 571
 572         BT_DBG("Args : %s\n", ip_args);
 573
 574         snprintf(ip_cmd, sizeof(ip_cmd), "%s -6 neigh add %s",
 575                         IP_CMD, ip_args);
 576
 577         BT_DBG("IP_CMD : %s\n", ip_cmd);
 578
 579         args = g_strsplit_set(ip_cmd, " ", -1);
 580         if (!args) {
 581                 BT_ERR("g_strsplit_set failed\n");
 582                 return -1;
 583         }
 584
 585         if ((pid = fork()) < 0) {
 586                 BT_ERR("fork failed\n");
 587                 g_strfreev(args);
 588                 return -1;
 589         }
 590
 591         if (!pid) {
 592                 if (execv(args[0], args))
 593                         BT_ERR("execl failed\n");
 594
 595                 BT_ERR("Should never get here!\n");
 596                 g_strfreev(args);
 597                 return -1;
 598         } else {
 599                 /* Need to add timeout */
 600                 waitpid(pid, &status, 0);
 601                 g_strfreev(args);
 602
 603                 if (WIFEXITED(status)) {
 604                         exit_status = WEXITSTATUS(status);
 605                         if (exit_status) {
 606                                 BT_ERR("child return : %d\n", exit_status);
 607                                 return -1;
 608                         }
 609                         return 0;
 610                 } else {
 611                         BT_ERR("child is terminated without exit\n");
 612                         return -1;
 613                 }
 614         }
 615 }
 616
 617 gboolean __bt_ipsp_add_ipv6_neigh_proxy(char *if_name, char *ip)
 618 {
 619         BT_DBG("++");
 620         if (tethered_prof == NULL) {
 621                 BT_DBG("There is no network\n");
 622                 return TRUE;
 623         }
 624
 625         char args[MAX_BUF_SIZE] = {0, };
 626
 627         snprintf(args, sizeof(args), IPV6_NEIGH_PROXY,
 628                         ip, if_name);
 629
 630         if (_execute_ip_command(args)) {
 631                 BT_ERR("%s is failed\n", args);
 632                 return FALSE;
 633         }
 634
 635         BT_DBG("--");
 636         return TRUE;
 637 }
 638
 639 gboolean __bt_ipsp_add_ipv6_route(char *if_name, char *ip, int prefix)
 640 {
 641         BT_DBG("++");
 642         if (tethered_prof == NULL) {
 643                 BT_DBG("There is no network\n");
 644                 return TRUE;
 645         }
 646
 647         char args[MAX_BUF_SIZE] = {0, };
 648         char routing_ip[MH_MAX_IPV6_ADDRESS_STR_LEN] = {0, };
 649         char *copied_ip = NULL;
 650         int len = (prefix % 4) + 4;
 651
 652         if (prefix < 128) {
 653                 copied_ip = g_strndup(ip, len);
 654                 g_snprintf(routing_ip, sizeof(routing_ip), "%s:", copied_ip);
 655                 g_free(copied_ip);
 656
 657                 snprintf(args, sizeof(args), IPV6_INTERFACE_ROUTING,
 658                                 ip, prefix, if_name);
 659         } else {
 660                 snprintf(args, sizeof(args), IPV6_INTERFACE_ROUTING,
 661                                 ip, prefix, if_name);
 662         }
 663
 664         if (_execute_ip_command(args)) {
 665                 BT_ERR("%s is failed\n", args);
 666                 return FALSE;
 667         }
 668
 669         BT_DBG("--");
 670         return TRUE;
 671 }
 672
 673 static void __bt_ipsp_dbus_method(GDBusConnection *connection,
 674                         const gchar *sender,
 675                         const gchar *object_path,
 676                         const gchar *interface_name,
 677                         const gchar *method_name,
 678                         GVariant *parameters,
 679                         GDBusMethodInvocation *invocation,
 680                         gpointer user_data)
 681 {
 682         int ret = 0;
 683
 684         BT_DBG("method %s", method_name);
 685         if (g_strcmp0(method_name, "EnableIpsp") == 0) {
 686                 BT_DBG("");
 687 //              ret = _bt_core_enable_adapter();
 688 //              ret = bt_ipsp_set_connection_state_changed_cb(
 689 //                              __bt_ipsp_connection_state_changed_cb, NULL);
 690
 691 //              if (ret != BT_ERROR_NONE)
 692 //                      BT_ERR("failed to set ipsp changed cb");
 693
 694                 /* init network */
 695                 ret = connection_create(&net_connection);
 696                 if (ret != CONNECTION_ERROR_NONE)
 697                         BT_ERR("connection create is failed");
 698
 699                 ret = connection_get_current_profile(net_connection, &tethered_prof);
 700                 if (ret != CONNECTION_ERROR_NONE)
 701                         BT_ERR("connection_get_current_profile is failed [0x%X]", ret);
 702
 703                 __enable_ipv6_forwarding();
 704                 __enable_ipv6_proxy_ndp();
 705
 706                 __bt_ipsp_execute_dhcp6_server();
 707
 708         } else if (g_strcmp0(method_name, "SetIpv6Addr") == 0) {
 709                 int ret;
 710                 BT_DBG("");
 711                 char *ifname = NULL;
 712                 char *address = NULL;
 713                 char *ip6;
 714                 gchar *network_ipv6_address = NULL;
 715
 716                 char *remote_ipv6_address = NULL;
 717                 //char *network_ipv6_address = NULL;
 718                 char *network_interface = NULL;
 719
 720                 g_variant_get(parameters, "(ss)", &ifname, &address);
 721                 BT_DBG("Ipsp interface name : %s", ifname);
 722                 BT_DBG("remote device address : %s", address);
 723
 724                 ret = __bt_ipsp_create_ipv6_address(ifname, &ip6);
 725                 if (ret != BT_ERROR_NONE)
 726                         BT_DBG("failed to create ipv6 address");
 727
 728                 ret = __bt_ipsp_set_ipv6_address(ifname, ip6);
 729                 if (ret != BT_ERROR_NONE)
 730                         BT_DBG("failed to set ipv6 address");
 731
 732                 ret = __bt_ipsp_create_ipv6_remote_address(address, &remote_ipv6_address);
 733                 if (ret != BT_ERROR_NONE)
 734                         BT_DBG("failed to create remote device ipv6 address");
 735
 736                 __bt_ipsp_get_network_interface_name(&network_interface);
 737
 738                 if (network_interface)
 739                         __bt_ipsp_get_network_ipv6_address(network_interface, MOBILE_AP_IPV6_SCOPE_GLOBAL, &network_ipv6_address);
 740
 741                 /* Add the Routing Rule */
 742                 __bt_ipsp_add_ipv6_neigh_proxy(network_interface, remote_ipv6_address);
 743                 __bt_ipsp_add_ipv6_neigh_proxy(ifname, network_ipv6_address);
 744
 745
 746                 __bt_ipsp_add_ipv6_route(ifname, remote_ipv6_address, 128);
 747                 __bt_ipsp_add_ipv6_route(network_interface, network_ipv6_address, 64);
 748
 749                 g_free(network_ipv6_address);
 750                 g_free(remote_ipv6_address);
 751                 g_free(network_interface);
 752         }
 753
 754         BT_DBG("-");
 755 }
 756
 757 static const GDBusInterfaceVTable method_table = {
 758         __bt_ipsp_dbus_method,
 759         NULL,
 760         NULL,
 761 };
 762
 763
 764 gboolean __is_interface_and_signal_valid(const gchar *interface_name,
 765                                                 const gchar *signal_name)
 766 {
 767         if (g_strcmp0(interface_name, "org.freedesktop.DBus") &&
 768                 g_strcmp0(interface_name, "org.freedesktop.DBus.ObjectManager"))
 769                 return FALSE;
 770
 771         if (g_strcmp0(signal_name, "NameOwnerChanged") &&
 772                 g_strcmp0(signal_name, "InterfacesAdded") &&
 773                 g_strcmp0(signal_name, "InterfacesRemoved"))
 774                 return FALSE;
 775
 776         return TRUE;
 777 }
 778
 779 static void __bt_ipsp_event_filter(GDBusConnection *connection,
 780                                                  const gchar *sender_name,
 781                                                  const gchar *object_path,
 782                                                  const gchar *interface_name,
 783                                                  const gchar *signal_name,
 784                                                  GVariant *parameters,
 785                                                  gpointer user_data)
 786 {
 787         if (!__is_interface_and_signal_valid(interface_name, signal_name))
 788                 return;
 789
 790         if (!g_strcmp0(signal_name, "InterfacesAdded")) {
 791                 char *obj_path = NULL;
 792                 GVariant *optional_param;
 793
 794                 g_variant_get(parameters, "(&o@a{sa{sv}})",
 795                                                 &obj_path, &optional_param);
 796
 797 //              if (g_strcmp0(obj_path, "/org/bluez/hci0") == 0)
 798 //                      _bt_core_adapter_added_cb();
 799
 800         } else if (!g_strcmp0(signal_name, "InterfacesRemoved")) {
 801                 char *obj_path = NULL;
 802                 GVariant *optional_param;
 803
 804                 g_variant_get(parameters, "(&o@as)", &obj_path,
 805                                                         &optional_param);
 806
 807 //              if (g_strcmp0(obj_path, "/org/bluez/hci0") == 0)
 808 //                      _bt_core_adapter_removed_cb();
 809
 810         } else { /* NameOwnerChanged */
 811 //              const char *name = NULL;
 812 //              const char *old_owner = NULL;
 813 //              const char *new_owner = NULL;
 814
 815 //              g_variant_get(parameters, "(&s&s&s)", &name, &old_owner,
 816 //                                                              &new_owner);
 817
 818 //              if (new_owner != NULL && *new_owner == '\0')
 819 //                      __handle_name_owner_changed(name);
 820         }
 821 }
 822
 823 static GDBusNodeInfo *__bt_ipsp_create_node_info(
 824                                         const gchar *introspection_data)
 825 {
 826         GError *err = NULL;
 827         GDBusNodeInfo *node_info = NULL;
 828
 829         if (introspection_data == NULL)
 830                 return NULL;
 831
 832         node_info = g_dbus_node_info_new_for_xml(introspection_data, &err);
 833
 834         if (err) {
 835                 BT_ERR("Unable to create node: %s", err->message);
 836                 g_clear_error(&err);
 837         }
 838         return node_info;
 839 }
 840
 841 gboolean _bt_ipsp_register_dbus(void)
 842 {
 843         GError *error = NULL;
 844         guint owner_id;
 845         GDBusNodeInfo *node_info;
 846         gchar *path;
 847         GDBusConnection *conn;
 848
 849         conn = _bt_ipsp_get_gdbus_connection();
 850         if (!conn)
 851                 return FALSE;
 852
 853         owner_id = g_bus_own_name(G_BUS_TYPE_SYSTEM,
 854                                 BT_IPSP_NAME,
 855                                 G_BUS_NAME_OWNER_FLAGS_NONE,
 856                                 NULL, NULL, NULL,
 857                                 NULL, NULL);
 858
 859         BT_DBG("owner_id is [%d]", owner_id);
 860
 861         node_info = __bt_ipsp_create_node_info(bt_ipsp_introspection_xml);
 862         if (node_info == NULL)
 863                 return FALSE;
 864
 865         path = g_strdup(BT_IPSP_PATH);
 866         BT_DBG("path is [%s]", path);
 867
 868         obj_id = g_dbus_connection_register_object(conn, path,
 869                                         node_info->interfaces[0],
 870                                         &method_table,
 871                                         NULL, NULL, &error);
 872         if (obj_id == 0) {
 873                 BT_ERR("Failed to register: %s", error->message);
 874                 g_error_free(error);
 875                 g_free(path);
 876                 return FALSE;
 877         }
 878
 879         g_free(path);
 880
 881         sig_id1 = g_dbus_connection_signal_subscribe(conn,
 882                                 NULL, "org.freedesktop.DBus",
 883                                 "NameOwnerChanged", NULL, NULL, 0,
 884                                 __bt_ipsp_event_filter, NULL, NULL);
 885         sig_id2 = g_dbus_connection_signal_subscribe(conn,
 886                                 NULL, "org.freedesktop.DBus.ObjectManager",
 887                                 "InterfacesAdded", NULL, NULL,
 888                                 0, __bt_ipsp_event_filter, NULL, NULL);
 889         sig_id3 = g_dbus_connection_signal_subscribe(conn,
 890                                 NULL, "org.freedesktop.DBus.ObjectManager",
 891                                 "InterfacesRemoved", NULL,
 892                                 NULL, 0, __bt_ipsp_event_filter, NULL, NULL);
 893
 894         return TRUE;
 895 }
 896
 897 int main(void)
 898 {
 899         gboolean ret;
 900         struct sigaction sa;
 901
 902         BT_INFO_C("Starting bt-ipsp daemeon");
 903
 904         ret = _bt_ipsp_register_dbus();
 905         if (!ret) {
 906                 BT_ERR("_bt_core_register_dbus failed");
 907                 goto fail;
 908         }
 909
 910
 911         memset(&sa, 0, sizeof(sa));
 912         sa.sa_handler = __bt_ipsp_sigterm_handler;
 913         sigaction(SIGINT, &sa, NULL);
 914         sigaction(SIGTERM, &sa, NULL);
 915
 916 //      g_timeout_add(500, (GSourceFunc)__bt_check_bt_core, NULL);
 917
 918         main_loop = g_main_loop_new(NULL, FALSE);
 919         if (!main_loop) {
 920                 BT_ERR("creating main loop failed");
 921                 goto fail;
 922         }
 923
 924         g_main_loop_run(main_loop);
 925
 926 fail:
 927         _bt_ipsp_unregister_dbus();
 928
 929         if (main_loop)
 930                 g_main_loop_unref(main_loop);
 931
 932         BT_INFO_C("Terminating bt-ipsp daemon");
 933
 934         return 0;
 935
 936
 937 }