1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define __BTSTACK_FILE__ "panu_demo.c" 39 40 /* 41 * panu_demo.c 42 * Author: Ole Reinhardt <[email protected]> 43 */ 44 45 /* EXAMPLE_START(panu_demo): PANU Demo 46 * 47 * @text This example implements both a PANU client and a server. In server mode, it 48 * sets up a BNEP server and registers a PANU SDP record and waits for incoming connections. 49 * In client mode, it connects to a remote device, does an SDP Query to identify the PANU 50 * service and initiates a BNEP connection. 51 * 52 * Note: currently supported only on Linux and Mac. 53 */ 54 55 #include "btstack_config.h" 56 57 #include <arpa/inet.h> 58 #include <errno.h> 59 #include <fcntl.h> 60 #include <ifaddrs.h> 61 #include <stdint.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <unistd.h> 66 67 #include <net/if_arp.h> 68 69 #ifdef __APPLE__ 70 #include <net/if.h> 71 #include <net/if_types.h> 72 73 #include <netinet/if_ether.h> 74 #include <netinet/in.h> 75 #endif 76 77 #include <sys/ioctl.h> 78 #include <sys/param.h> 79 #include <sys/socket.h> 80 #include <sys/stat.h> 81 #include <sys/types.h> 82 83 #ifdef __linux 84 #include <linux/if.h> 85 #include <linux/if_tun.h> 86 #endif 87 88 #include "btstack.h" 89 90 static int record_id = -1; 91 static uint16_t bnep_l2cap_psm = 0; 92 static uint32_t bnep_remote_uuid = 0; 93 static uint16_t bnep_version = 0; 94 static uint16_t bnep_cid = 0; 95 96 static uint16_t sdp_bnep_l2cap_psm = 0; 97 static uint16_t sdp_bnep_version = 0; 98 static uint32_t sdp_bnep_remote_uuid = 0; 99 100 static uint8_t attribute_value[1000]; 101 static const unsigned int attribute_value_buffer_size = sizeof(attribute_value); 102 103 // MBP 2016 static const char * remote_addr_string = "F4-0F-24-3B-1B-E1"; 104 // Wiko Sunny 105 static const char * remote_addr_string = "A0:4C:5B:0F:B2:42"; 106 static bd_addr_t remote_addr; 107 108 static int tap_fd = -1; 109 static uint8_t network_buffer[BNEP_MTU_MIN]; 110 static size_t network_buffer_len = 0; 111 112 #ifdef __APPLE__ 113 // tuntaposx provides fixed set of tapX devices 114 static const char * tap_dev = "/dev/tap0"; 115 static char tap_dev_name[16] = "tap0"; 116 #endif 117 118 #ifdef __linux 119 // Linux uses single control device to bring up tunX or tapX interface 120 static const char * tap_dev = "/dev/net/tun"; 121 static char tap_dev_name[16] = "bnep%d"; 122 #endif 123 124 125 static btstack_data_source_t tap_dev_ds; 126 static btstack_packet_callback_registration_t hci_event_callback_registration; 127 128 /* @section Main application configuration 129 * 130 * @text In the application configuration, L2CAP and BNEP are initialized and a BNEP service, for server mode, 131 * is registered, before the Bluetooth stack gets started, as shown in Listing PanuSetup. 132 */ 133 134 /* LISTING_START(PanuSetup): Panu setup */ 135 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 136 static void handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 137 138 static void panu_setup(void){ 139 140 // register for HCI events 141 hci_event_callback_registration.callback = &packet_handler; 142 hci_add_event_handler(&hci_event_callback_registration); 143 144 // Initialize L2CAP 145 l2cap_init(); 146 147 // Initialise BNEP 148 bnep_init(); 149 // Minimum L2CAP MTU for bnep is 1691 bytes 150 bnep_register_service(packet_handler, BLUETOOTH_SERVICE_CLASS_PANU, 1691); 151 } 152 /* LISTING_END */ 153 154 /* @section TUN / TAP interface routines 155 * 156 * @text This example requires a TUN/TAP interface to connect the Bluetooth network interface 157 * with the native system. It has been tested on Linux and OS X, but should work on any 158 * system that provides TUN/TAP with minor modifications. 159 * 160 * On Linux, TUN/TAP is available by default. On OS X, tuntaposx from 161 * http://tuntaposx.sourceforge.net needs to be installed. 162 * 163 * The *tap_alloc* function sets up a virtual network interface with the given Bluetooth Address. 164 * It is rather low-level as it sets up and configures a network interface. 165 */ 166 167 static int tap_alloc(char *dev, bd_addr_t bd_addr) 168 { 169 struct ifreq ifr; 170 int fd_dev; 171 int fd_socket; 172 173 if( (fd_dev = open(tap_dev, O_RDWR)) < 0 ) { 174 fprintf(stderr, "TAP: Error opening %s: %s\n", tap_dev, strerror(errno)); 175 return -1; 176 } 177 178 #ifdef __linux 179 memset(&ifr, 0, sizeof(ifr)); 180 181 ifr.ifr_flags = IFF_TAP | IFF_NO_PI; 182 if( *dev ) { 183 strncpy(ifr.ifr_name, dev, IFNAMSIZ); 184 } 185 186 int err; 187 if( (err = ioctl(fd_dev, TUNSETIFF, (void *) &ifr)) < 0 ) { 188 fprintf(stderr, "TAP: Error setting device name: %s\n", strerror(errno)); 189 close(fd_dev); 190 return -1; 191 } 192 strcpy(dev, ifr.ifr_name); 193 #endif 194 #ifdef __APPLE__ 195 dev = tap_dev_name; 196 #endif 197 198 fd_socket = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); 199 if (fd_socket < 0) { 200 close(fd_dev); 201 fprintf(stderr, "TAP: Error opening netlink socket: %s\n", strerror(errno)); 202 return -1; 203 } 204 205 // Configure the MAC address of the newly created bnep(x) 206 // device to the local bd_address 207 memset (&ifr, 0, sizeof(struct ifreq)); 208 strcpy(ifr.ifr_name, dev); 209 #ifdef __linux 210 ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER; 211 memcpy(ifr.ifr_hwaddr.sa_data, bd_addr, sizeof(bd_addr_t)); 212 if (ioctl(fd_socket, SIOCSIFHWADDR, &ifr) == -1) { 213 close(fd_dev); 214 close(fd_socket); 215 fprintf(stderr, "TAP: Error setting hw addr: %s\n", strerror(errno)); 216 exit(1); 217 return -1; 218 } 219 #endif 220 #ifdef __APPLE__ 221 ifr.ifr_addr.sa_len = ETHER_ADDR_LEN; 222 ifr.ifr_addr.sa_family = AF_LINK; 223 (void)memcpy(ifr.ifr_addr.sa_data, bd_addr, ETHER_ADDR_LEN); 224 if (ioctl(fd_socket, SIOCSIFLLADDR, &ifr) == -1) { 225 close(fd_dev); 226 close(fd_socket); 227 fprintf(stderr, "TAP: Error setting hw addr: %s\n", strerror(errno)); 228 exit(1); 229 return -1; 230 } 231 #endif 232 233 // Bring the interface up 234 if (ioctl(fd_socket, SIOCGIFFLAGS, &ifr) == -1) { 235 close(fd_dev); 236 close(fd_socket); 237 fprintf(stderr, "TAP: Error reading interface flags: %s\n", strerror(errno)); 238 return -1; 239 } 240 241 if ((ifr.ifr_flags & IFF_UP) == 0) { 242 ifr.ifr_flags |= IFF_UP; 243 244 if (ioctl(fd_socket, SIOCSIFFLAGS, &ifr) == -1) { 245 close(fd_dev); 246 close(fd_socket); 247 fprintf(stderr, "TAP: Error set IFF_UP: %s\n", strerror(errno)); 248 return -1; 249 } 250 } 251 252 close(fd_socket); 253 254 return fd_dev; 255 } 256 257 /* 258 * @text Listing processTapData shows how a packet is received from the TAP network interface 259 * and forwarded over the BNEP connection. 260 * 261 * After successfully reading a network packet, the call to 262 * the *bnep_can_send_packet_now* function checks, if BTstack can forward 263 * a network packet now. If that's not possible, the received data stays 264 * in the network buffer and the data source elements is removed from the 265 * run loop. The *process_tap_dev_data* function will not be called until 266 * the data source is registered again. This provides a basic flow control. 267 */ 268 269 /* LISTING_START(processTapData): Process incoming network packets */ 270 static void process_tap_dev_data(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type) 271 { 272 UNUSED(ds); 273 UNUSED(callback_type); 274 275 ssize_t len; 276 len = read(ds->fd, network_buffer, sizeof(network_buffer)); 277 if (len <= 0){ 278 fprintf(stderr, "TAP: Error while reading: %s\n", strerror(errno)); 279 return; 280 } 281 282 network_buffer_len = len; 283 284 // disable reading from netif 285 btstack_run_loop_disable_data_source_callbacks(&tap_dev_ds, DATA_SOURCE_CALLBACK_READ); 286 287 // request permission to send 288 bnep_request_can_send_now_event(bnep_cid); 289 } 290 /* LISTING_END */ 291 292 // PANU client routines 293 static char * get_string_from_data_element(uint8_t * element){ 294 de_size_t de_size = de_get_size_type(element); 295 int pos = de_get_header_size(element); 296 int len = 0; 297 switch (de_size){ 298 case DE_SIZE_VAR_8: 299 len = element[1]; 300 break; 301 case DE_SIZE_VAR_16: 302 len = big_endian_read_16(element, 1); 303 break; 304 default: 305 break; 306 } 307 char * str = (char*)malloc(len+1); 308 memcpy(str, &element[pos], len); 309 str[len] ='\0'; 310 return str; 311 } 312 313 314 /* @section SDP parser callback 315 * 316 * @text The SDP parsers retrieves the BNEP PAN UUID as explained in 317 * Section [on SDP BNEP Query example](#sec:sdpbnepqueryExample}. 318 */ 319 static void handle_sdp_client_record_complete(void){ 320 321 printf("SDP BNEP Record complete\n"); 322 323 // accept first entry or if we foudn a NAP and only have a PANU yet 324 if ((bnep_remote_uuid == 0) || (sdp_bnep_remote_uuid == BLUETOOTH_SERVICE_CLASS_NAP && bnep_remote_uuid == BLUETOOTH_SERVICE_CLASS_PANU)){ 325 bnep_l2cap_psm = sdp_bnep_l2cap_psm; 326 bnep_remote_uuid = sdp_bnep_remote_uuid; 327 bnep_version = sdp_bnep_version; 328 } 329 } 330 331 static void handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size) { 332 333 UNUSED(packet_type); 334 UNUSED(channel); 335 UNUSED(size); 336 337 des_iterator_t des_list_it; 338 des_iterator_t prot_it; 339 char *str; 340 341 switch (hci_event_packet_get_type(packet)){ 342 case SDP_EVENT_QUERY_ATTRIBUTE_VALUE: 343 // Handle new SDP record 344 if (sdp_event_query_attribute_byte_get_record_id(packet) != record_id) { 345 handle_sdp_client_record_complete(); 346 // next record started 347 record_id = sdp_event_query_attribute_byte_get_record_id(packet); 348 printf("SDP Record: Nr: %d\n", record_id); 349 } 350 351 if (sdp_event_query_attribute_byte_get_attribute_length(packet) <= attribute_value_buffer_size) { 352 attribute_value[sdp_event_query_attribute_byte_get_data_offset(packet)] = sdp_event_query_attribute_byte_get_data(packet); 353 354 if ((uint16_t)(sdp_event_query_attribute_byte_get_data_offset(packet)+1) == sdp_event_query_attribute_byte_get_attribute_length(packet)) { 355 356 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)) { 357 case BLUETOOTH_ATTRIBUTE_SERVICE_CLASS_ID_LIST: 358 if (de_get_element_type(attribute_value) != DE_DES) break; 359 for (des_iterator_init(&des_list_it, attribute_value); des_iterator_has_more(&des_list_it); des_iterator_next(&des_list_it)) { 360 uint8_t * element = des_iterator_get_element(&des_list_it); 361 if (de_get_element_type(element) != DE_UUID) continue; 362 uint32_t uuid = de_get_uuid32(element); 363 switch (uuid){ 364 case BLUETOOTH_SERVICE_CLASS_PANU: 365 case BLUETOOTH_SERVICE_CLASS_NAP: 366 case BLUETOOTH_SERVICE_CLASS_GN: 367 printf("SDP Attribute 0x%04x: BNEP PAN protocol UUID: %04x\n", sdp_event_query_attribute_byte_get_attribute_id(packet), uuid); 368 sdp_bnep_remote_uuid = uuid; 369 break; 370 default: 371 break; 372 } 373 } 374 break; 375 case 0x0100: 376 case 0x0101: 377 str = get_string_from_data_element(attribute_value); 378 printf("SDP Attribute: 0x%04x: %s\n", sdp_event_query_attribute_byte_get_attribute_id(packet), str); 379 free(str); 380 break; 381 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: { 382 printf("SDP Attribute: 0x%04x\n", sdp_event_query_attribute_byte_get_attribute_id(packet)); 383 384 for (des_iterator_init(&des_list_it, attribute_value); des_iterator_has_more(&des_list_it); des_iterator_next(&des_list_it)) { 385 uint8_t *des_element; 386 uint8_t *element; 387 uint32_t uuid; 388 389 if (des_iterator_get_type(&des_list_it) != DE_DES) continue; 390 391 des_element = des_iterator_get_element(&des_list_it); 392 des_iterator_init(&prot_it, des_element); 393 element = des_iterator_get_element(&prot_it); 394 395 if (de_get_element_type(element) != DE_UUID) continue; 396 397 uuid = de_get_uuid32(element); 398 switch (uuid){ 399 case BLUETOOTH_PROTOCOL_L2CAP: 400 if (!des_iterator_has_more(&prot_it)) continue; 401 des_iterator_next(&prot_it); 402 de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_bnep_l2cap_psm); 403 break; 404 case BLUETOOTH_PROTOCOL_BNEP: 405 if (!des_iterator_has_more(&prot_it)) continue; 406 des_iterator_next(&prot_it); 407 de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_bnep_version); 408 break; 409 default: 410 break; 411 } 412 } 413 printf("Summary: uuid 0x%04x, l2cap_psm 0x%04x, bnep_version 0x%04x\n", sdp_bnep_remote_uuid, sdp_bnep_l2cap_psm, sdp_bnep_version); 414 415 } 416 break; 417 default: 418 break; 419 } 420 } 421 } else { 422 fprintf(stderr, "SDP attribute value buffer size exceeded: available %d, required %d\n", attribute_value_buffer_size, sdp_event_query_attribute_byte_get_attribute_length(packet)); 423 } 424 break; 425 426 case SDP_EVENT_QUERY_COMPLETE: 427 handle_sdp_client_record_complete(); 428 fprintf(stderr, "General query done with status %d, bnep psm %04x.\n", sdp_event_query_complete_get_status(packet), bnep_l2cap_psm); 429 if (bnep_l2cap_psm){ 430 /* Create BNEP connection */ 431 bnep_connect(packet_handler, remote_addr, bnep_l2cap_psm, BLUETOOTH_SERVICE_CLASS_PANU, bnep_remote_uuid); 432 } else { 433 fprintf(stderr, "No BNEP service found\n"); 434 } 435 436 break; 437 } 438 } 439 440 /* 441 * @section Packet Handler 442 * 443 * @text The packet handler responds to various HCI Events. 444 */ 445 446 447 /* LISTING_START(packetHandler): Packet Handler */ 448 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size) 449 { 450 /* LISTING_PAUSE */ 451 UNUSED(channel); 452 453 int rc; 454 uint8_t event; 455 bd_addr_t event_addr; 456 bd_addr_t local_addr; 457 uint16_t uuid_source; 458 uint16_t uuid_dest; 459 uint16_t mtu; 460 461 /* LISTING_RESUME */ 462 switch (packet_type) { 463 case HCI_EVENT_PACKET: 464 event = hci_event_packet_get_type(packet); 465 switch (event) { 466 /* @text When BTSTACK_EVENT_STATE with state HCI_STATE_WORKING 467 * is received and the example is started in client mode, the remote SDP BNEP query is started. 468 */ 469 case BTSTACK_EVENT_STATE: 470 if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING){ 471 printf("Start SDP BNEP query for remote PAN Network Access Point (NAP).\n"); 472 sdp_client_query_uuid16(&handle_sdp_client_query_result, remote_addr, BLUETOOTH_SERVICE_CLASS_NAP); 473 } 474 break; 475 476 /* LISTING_PAUSE */ 477 case HCI_EVENT_PIN_CODE_REQUEST: 478 // inform about pin code request 479 printf("Pin code request - using '0000'\n"); 480 hci_event_pin_code_request_get_bd_addr(packet, event_addr); 481 gap_pin_code_response(event_addr, "0000"); 482 break; 483 484 case HCI_EVENT_USER_CONFIRMATION_REQUEST: 485 // inform about user confirmation request 486 printf("SSP User Confirmation Request with numeric value '%06u'\n", little_endian_read_32(packet, 8)); 487 printf("SSP User Confirmation Auto accept\n"); 488 break; 489 490 /* LISTING_RESUME */ 491 492 /* @text BNEP_EVENT_CHANNEL_OPENED is received after a BNEP connection was established or 493 * or when the connection fails. The status field returns the error code. 494 * 495 * The TAP network interface is then configured. A data source is set up and registered with the 496 * run loop to receive Ethernet packets from the TAP interface. 497 * 498 * The event contains both the source and destination UUIDs, as well as the MTU for this connection and 499 * the BNEP Channel ID, which is used for sending Ethernet packets over BNEP. 500 */ 501 case BNEP_EVENT_CHANNEL_OPENED: 502 if (bnep_event_channel_opened_get_status(packet)) { 503 printf("BNEP channel open failed, status %02x\n", bnep_event_channel_opened_get_status(packet)); 504 } else { 505 bnep_cid = bnep_event_channel_opened_get_bnep_cid(packet); 506 uuid_source = bnep_event_channel_opened_get_source_uuid(packet); 507 uuid_dest = bnep_event_channel_opened_get_destination_uuid(packet); 508 mtu = bnep_event_channel_opened_get_mtu(packet); 509 //bt_flip_addr(event_addr, &packet[9]); 510 memcpy(&event_addr, &packet[11], sizeof(bd_addr_t)); 511 printf("BNEP connection open succeeded to %s source UUID 0x%04x dest UUID: 0x%04x, max frame size %u\n", bd_addr_to_str(event_addr), uuid_source, uuid_dest, mtu); 512 /* Create the tap interface */ 513 gap_local_bd_addr(local_addr); 514 tap_fd = tap_alloc(tap_dev_name, local_addr); 515 if (tap_fd < 0) { 516 printf("Creating BNEP tap device failed: %s\n", strerror(errno)); 517 } else { 518 printf("BNEP device \"%s\" allocated.\n", tap_dev_name); 519 /* Create and register a new runloop data source */ 520 btstack_run_loop_set_data_source_fd(&tap_dev_ds, tap_fd); 521 btstack_run_loop_set_data_source_handler(&tap_dev_ds, &process_tap_dev_data); 522 btstack_run_loop_add_data_source(&tap_dev_ds); 523 btstack_run_loop_enable_data_source_callbacks(&tap_dev_ds, DATA_SOURCE_CALLBACK_READ); 524 } 525 } 526 break; 527 528 /* @text If there is a timeout during the connection setup, BNEP_EVENT_CHANNEL_TIMEOUT will be received 529 * and the BNEP connection will be closed 530 */ 531 case BNEP_EVENT_CHANNEL_TIMEOUT: 532 printf("BNEP channel timeout! Channel will be closed\n"); 533 break; 534 535 /* @text BNEP_EVENT_CHANNEL_CLOSED is received when the connection gets closed. 536 */ 537 case BNEP_EVENT_CHANNEL_CLOSED: 538 printf("BNEP channel closed\n"); 539 btstack_run_loop_remove_data_source(&tap_dev_ds); 540 if (tap_fd > 0) { 541 close(tap_fd); 542 tap_fd = -1; 543 } 544 break; 545 546 /* @text BNEP_EVENT_CAN_SEND_NOW indicates that a new packet can be send. This triggers the send of a 547 * stored network packet. The tap datas source can be enabled again 548 */ 549 case BNEP_EVENT_CAN_SEND_NOW: 550 if (network_buffer_len > 0) { 551 bnep_send(bnep_cid, network_buffer, network_buffer_len); 552 network_buffer_len = 0; 553 // Re-enable the tap device data source 554 btstack_run_loop_enable_data_source_callbacks(&tap_dev_ds, DATA_SOURCE_CALLBACK_READ); 555 } 556 break; 557 558 default: 559 break; 560 } 561 break; 562 563 /* @text Ethernet packets from the remote device are received in the packet handler with type BNEP_DATA_PACKET. 564 * It is forwarded to the TAP interface. 565 */ 566 case BNEP_DATA_PACKET: 567 // Write out the ethernet frame to the tap device 568 if (tap_fd > 0) { 569 rc = write(tap_fd, packet, size); 570 if (rc < 0) { 571 fprintf(stderr, "TAP: Could not write to TAP device: %s\n", strerror(errno)); 572 } else 573 if (rc != size) { 574 fprintf(stderr, "TAP: Package written only partially %d of %d bytes\n", rc, size); 575 } 576 } 577 break; 578 579 default: 580 break; 581 } 582 } 583 /* LISTING_END */ 584 585 586 int btstack_main(int argc, const char * argv[]); 587 int btstack_main(int argc, const char * argv[]){ 588 589 (void)argc; 590 (void)argv; 591 592 panu_setup(); 593 594 // parse human readable Bluetooth address 595 sscanf_bd_addr(remote_addr_string, remote_addr); 596 597 // Turn on the device 598 hci_power_control(HCI_POWER_ON); 599 return 0; 600 } 601 602 /* EXAMPLE_END */ 603 /* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*- */ 604 605