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__ "daemon.c" 39 40 /* 41 * daemon.c 42 * 43 * Created by Matthias Ringwald on 7/1/09. 44 * 45 * BTstack background daemon 46 * 47 */ 48 49 #include "btstack_config.h" 50 51 #include <pthread.h> 52 #include <signal.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <strings.h> 56 #include <unistd.h> 57 58 #ifdef _WIN32 59 #include "Winsock2.h" 60 #endif 61 62 #include <getopt.h> 63 64 #include "btstack.h" 65 #include "btstack_client.h" 66 #include "btstack_debug.h" 67 #include "btstack_device_name_db.h" 68 #include "btstack_event.h" 69 #include "btstack_linked_list.h" 70 #include "btstack_run_loop.h" 71 #include "btstack_tlv_posix.h" 72 #include "btstack_util.h" 73 74 #include "btstack_server.h" 75 76 #ifdef _WIN32 77 #include "btstack_run_loop_windows.h" 78 #else 79 #include "btstack_run_loop_posix.h" 80 #endif 81 82 #include "btstack_version.h" 83 #include "classic/btstack_link_key_db.h" 84 #include "classic/btstack_link_key_db_tlv.h" 85 #include "classic/rfcomm.h" 86 #include "classic/sdp_server.h" 87 #include "classic/sdp_client.h" 88 #include "classic/sdp_client_rfcomm.h" 89 #include "hci.h" 90 #include "hci_cmd.h" 91 #include "hci_dump.h" 92 #include "hci_transport.h" 93 #include "l2cap.h" 94 #include "rfcomm_service_db.h" 95 #include "socket_connection.h" 96 97 #ifdef HAVE_INTEL_USB 98 #include "btstack_chipset_intel_firmware.h" 99 #endif 100 101 #ifdef ENABLE_BLE 102 #include "ble/gatt_client.h" 103 #include "ble/att_server.h" 104 #include "ble/att_db.h" 105 #include "ble/le_device_db.h" 106 #include "ble/le_device_db_tlv.h" 107 #include "ble/sm.h" 108 #endif 109 110 #ifdef HAVE_PLATFORM_IPHONE_OS 111 #include <CoreFoundation/CoreFoundation.h> 112 #include <notify.h> 113 #include "../port/ios/src/btstack_control_iphone.h" 114 #include "../port/ios/src/platform_iphone.h" 115 // support for "enforece wake device" in h4 - used by iOS power management 116 extern void hci_transport_h4_iphone_set_enforce_wake_device(char *path); 117 #endif 118 119 // copy of prototypes 120 const btstack_device_name_db_t * btstack_device_name_db_corefoundation_instance(void); 121 const btstack_device_name_db_t * btstack_device_name_db_fs_instance(void); 122 const btstack_link_key_db_t * btstack_link_key_db_corefoundation_instance(void); 123 const btstack_link_key_db_t * btstack_link_key_db_fs_instance(void); 124 125 // use logger: format HCI_DUMP_PACKETLOGGER, HCI_DUMP_BLUEZ or HCI_DUMP_STDOUT 126 #ifndef BTSTACK_LOG_TYPE 127 #define BTSTACK_LOG_TYPE HCI_DUMP_PACKETLOGGER 128 #endif 129 130 #define DAEMON_NO_ACTIVE_CLIENT_TIMEOUT 10000 131 132 #define ATT_MAX_LONG_ATTRIBUTE_SIZE 512 133 134 135 #define SERVICE_LENGTH 20 136 #define CHARACTERISTIC_LENGTH 24 137 #define CHARACTERISTIC_DESCRIPTOR_LENGTH 18 138 139 // ATT_MTU - 1 140 #define ATT_MAX_ATTRIBUTE_SIZE 22 141 142 // HCI CMD OGF/OCF 143 #define READ_CMD_OGF(buffer) (buffer[1] >> 2) 144 #define READ_CMD_OCF(buffer) ((buffer[1] & 0x03) << 8 | buffer[0]) 145 146 typedef struct { 147 // linked list - assert: first field 148 btstack_linked_item_t item; 149 150 // connection 151 connection_t * connection; 152 153 btstack_linked_list_t rfcomm_cids; 154 btstack_linked_list_t rfcomm_services; 155 btstack_linked_list_t l2cap_cids; 156 btstack_linked_list_t l2cap_psms; 157 btstack_linked_list_t sdp_record_handles; 158 btstack_linked_list_t gatt_con_handles; 159 160 // power mode 161 HCI_POWER_MODE power_mode; 162 163 // discoverable 164 uint8_t discoverable; 165 166 } client_state_t; 167 168 typedef struct btstack_linked_list_uint32 { 169 btstack_linked_item_t item; 170 uint32_t value; 171 } btstack_linked_list_uint32_t; 172 173 typedef struct btstack_linked_list_connection { 174 btstack_linked_item_t item; 175 connection_t * connection; 176 } btstack_linked_list_connection_t; 177 178 typedef struct btstack_linked_list_gatt_client_helper{ 179 btstack_linked_item_t item; 180 hci_con_handle_t con_handle; 181 connection_t * active_connection; // the one that started the current query 182 btstack_linked_list_t all_connections; // list of all connections that ever used this helper 183 uint16_t characteristic_length; 184 uint16_t characteristic_handle; 185 uint8_t characteristic_buffer[10 + ATT_MAX_LONG_ATTRIBUTE_SIZE]; // header for sending event right away 186 uint8_t long_query_type; 187 } btstack_linked_list_gatt_client_helper_t; 188 189 // MARK: prototypes 190 static void handle_sdp_rfcomm_service_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 191 static void handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 192 #ifdef ENABLE_BLE 193 static void handle_gatt_client_event(uint8_t packet_type, uint16_t channel, uint8_t * packet, uint16_t size); 194 #endif 195 static void dummy_bluetooth_status_handler(BLUETOOTH_STATE state); 196 static client_state_t * client_for_connection(connection_t *connection); 197 static int clients_require_power_on(void); 198 static int clients_require_discoverable(void); 199 static void clients_clear_power_request(void); 200 static void start_power_off_timer(void); 201 static void stop_power_off_timer(void); 202 static client_state_t * client_for_connection(connection_t *connection); 203 static void hci_emit_system_bluetooth_enabled(uint8_t enabled); 204 static void stack_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * packet, uint16_t size); 205 static void btstack_server_configure_stack(void); 206 207 // MARK: globals 208 209 #ifdef HAVE_TRANSPORT_H4 210 static hci_transport_config_uart_t hci_transport_config_uart; 211 #endif 212 213 // used for stack configuration 214 static const hci_transport_t * transport; 215 static void * config = NULL; 216 static btstack_control_t * control; 217 218 #ifdef HAVE_INTEL_USB 219 static int intel_firmware_loaded; 220 #endif 221 222 static btstack_timer_source_t timeout; 223 static uint8_t timeout_active = 0; 224 static int power_management_sleep = 0; 225 static btstack_linked_list_t clients = NULL; // list of connected clients ` 226 #ifdef ENABLE_BLE 227 static gatt_client_notification_t daemon_gatt_client_notifications; 228 static btstack_linked_list_t gatt_client_helpers = NULL; // list of used gatt client (helpers) 229 #endif 230 231 static void (*bluetooth_status_handler)(BLUETOOTH_STATE state) = dummy_bluetooth_status_handler; 232 233 static btstack_packet_callback_registration_t hci_event_callback_registration; 234 static btstack_packet_callback_registration_t sm_event_callback_registration; 235 236 static int global_enable = 0; 237 238 static btstack_link_key_db_t const * btstack_link_key_db = NULL; 239 static btstack_device_name_db_t const * btstack_device_name_db = NULL; 240 // static int rfcomm_channel_generator = 1; 241 242 static uint8_t attribute_value[1000]; 243 static const int attribute_value_buffer_size = sizeof(attribute_value); 244 static uint8_t serviceSearchPattern[200]; 245 static uint8_t attributeIDList[50]; 246 static void * sdp_client_query_connection; 247 248 static char string_buffer[1000]; 249 250 static int loggingEnabled; 251 252 static const char * btstack_server_storage_path; 253 254 // TLV 255 static int tlv_setup_done; 256 static const btstack_tlv_t * tlv_impl; 257 static btstack_tlv_posix_t tlv_context; 258 259 static void dummy_bluetooth_status_handler(BLUETOOTH_STATE state){ 260 log_info("Bluetooth status: %u\n", state); 261 }; 262 263 static void daemon_no_connections_timeout(struct btstack_timer_source *ts){ 264 if (clients_require_power_on()) return; // false alarm :) 265 log_info("No active client connection for %u seconds -> POWER OFF\n", DAEMON_NO_ACTIVE_CLIENT_TIMEOUT/1000); 266 hci_power_control(HCI_POWER_OFF); 267 } 268 269 270 static void add_uint32_to_list(btstack_linked_list_t *list, uint32_t value){ 271 btstack_linked_list_iterator_t it; 272 btstack_linked_list_iterator_init(&it, list); 273 while (btstack_linked_list_iterator_has_next(&it)){ 274 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 275 if ( item->value == value) return; // already in list 276 } 277 278 btstack_linked_list_uint32_t * item = malloc(sizeof(btstack_linked_list_uint32_t)); 279 if (!item) return; 280 memset(item, 0, sizeof(btstack_linked_list_uint32_t)); 281 item->value = value; 282 btstack_linked_list_add(list, (btstack_linked_item_t *) item); 283 } 284 285 static void remove_and_free_uint32_from_list(btstack_linked_list_t *list, uint32_t value){ 286 btstack_linked_list_iterator_t it; 287 btstack_linked_list_iterator_init(&it, list); 288 while (btstack_linked_list_iterator_has_next(&it)){ 289 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 290 if ( item->value != value) continue; 291 btstack_linked_list_remove(list, (btstack_linked_item_t *) item); 292 free(item); 293 } 294 } 295 296 static void daemon_add_client_rfcomm_service(connection_t * connection, uint16_t service_channel){ 297 client_state_t * client_state = client_for_connection(connection); 298 if (!client_state) return; 299 add_uint32_to_list(&client_state->rfcomm_services, service_channel); 300 } 301 302 static void daemon_remove_client_rfcomm_service(connection_t * connection, uint16_t service_channel){ 303 client_state_t * client_state = client_for_connection(connection); 304 if (!client_state) return; 305 remove_and_free_uint32_from_list(&client_state->rfcomm_services, service_channel); 306 } 307 308 static void daemon_add_client_rfcomm_channel(connection_t * connection, uint16_t cid){ 309 client_state_t * client_state = client_for_connection(connection); 310 if (!client_state) return; 311 add_uint32_to_list(&client_state->rfcomm_cids, cid); 312 } 313 314 static void daemon_remove_client_rfcomm_channel(connection_t * connection, uint16_t cid){ 315 client_state_t * client_state = client_for_connection(connection); 316 if (!client_state) return; 317 remove_and_free_uint32_from_list(&client_state->rfcomm_cids, cid); 318 } 319 320 static void daemon_add_client_l2cap_service(connection_t * connection, uint16_t psm){ 321 client_state_t * client_state = client_for_connection(connection); 322 if (!client_state) return; 323 add_uint32_to_list(&client_state->l2cap_psms, psm); 324 } 325 326 static void daemon_remove_client_l2cap_service(connection_t * connection, uint16_t psm){ 327 client_state_t * client_state = client_for_connection(connection); 328 if (!client_state) return; 329 remove_and_free_uint32_from_list(&client_state->l2cap_psms, psm); 330 } 331 332 static void daemon_add_client_l2cap_channel(connection_t * connection, uint16_t cid){ 333 client_state_t * client_state = client_for_connection(connection); 334 if (!client_state) return; 335 add_uint32_to_list(&client_state->l2cap_cids, cid); 336 } 337 338 static void daemon_remove_client_l2cap_channel(connection_t * connection, uint16_t cid){ 339 client_state_t * client_state = client_for_connection(connection); 340 if (!client_state) return; 341 remove_and_free_uint32_from_list(&client_state->l2cap_cids, cid); 342 } 343 344 static void daemon_add_client_sdp_service_record_handle(connection_t * connection, uint32_t handle){ 345 client_state_t * client_state = client_for_connection(connection); 346 if (!client_state) return; 347 add_uint32_to_list(&client_state->sdp_record_handles, handle); 348 } 349 350 static void daemon_remove_client_sdp_service_record_handle(connection_t * connection, uint32_t handle){ 351 client_state_t * client_state = client_for_connection(connection); 352 if (!client_state) return; 353 remove_and_free_uint32_from_list(&client_state->sdp_record_handles, handle); 354 } 355 356 #ifdef ENABLE_BLE 357 static void daemon_add_gatt_client_handle(connection_t * connection, uint32_t handle){ 358 client_state_t * client_state = client_for_connection(connection); 359 if (!client_state) return; 360 361 // check if handle already exists in the gatt_con_handles list 362 btstack_linked_list_iterator_t it; 363 int handle_found = 0; 364 btstack_linked_list_iterator_init(&it, &client_state->gatt_con_handles); 365 while (btstack_linked_list_iterator_has_next(&it)){ 366 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 367 if (item->value == handle){ 368 handle_found = 1; 369 break; 370 } 371 } 372 // if handle doesn't exist add it to gatt_con_handles 373 if (!handle_found){ 374 add_uint32_to_list(&client_state->gatt_con_handles, handle); 375 } 376 377 // check if there is a helper with given handle 378 btstack_linked_list_gatt_client_helper_t * gatt_helper = NULL; 379 btstack_linked_list_iterator_init(&it, &gatt_client_helpers); 380 while (btstack_linked_list_iterator_has_next(&it)){ 381 btstack_linked_list_gatt_client_helper_t * item = (btstack_linked_list_gatt_client_helper_t*) btstack_linked_list_iterator_next(&it); 382 if (item->con_handle == handle){ 383 gatt_helper = item; 384 break; 385 } 386 } 387 388 // if gatt_helper doesn't exist, create it and add it to gatt_client_helpers list 389 if (!gatt_helper){ 390 gatt_helper = calloc(sizeof(btstack_linked_list_gatt_client_helper_t), 1); 391 if (!gatt_helper) return; 392 gatt_helper->con_handle = handle; 393 btstack_linked_list_add(&gatt_client_helpers, (btstack_linked_item_t *) gatt_helper); 394 } 395 396 // check if connection exists 397 int connection_found = 0; 398 btstack_linked_list_iterator_init(&it, &gatt_helper->all_connections); 399 while (btstack_linked_list_iterator_has_next(&it)){ 400 btstack_linked_list_connection_t * item = (btstack_linked_list_connection_t*) btstack_linked_list_iterator_next(&it); 401 if (item->connection == connection){ 402 connection_found = 1; 403 break; 404 } 405 } 406 407 // if connection is not found, add it to the all_connections, and set it as active connection 408 if (!connection_found){ 409 btstack_linked_list_connection_t * con = calloc(sizeof(btstack_linked_list_connection_t), 1); 410 if (!con) return; 411 con->connection = connection; 412 btstack_linked_list_add(&gatt_helper->all_connections, (btstack_linked_item_t *)con); 413 } 414 } 415 416 417 static void daemon_remove_gatt_client_handle(connection_t * connection, uint32_t handle){ 418 // PART 1 - uses connection & handle 419 // might be extracted or vanish totally 420 client_state_t * client_state = client_for_connection(connection); 421 if (!client_state) return; 422 423 btstack_linked_list_iterator_t it; 424 // remove handle from gatt_con_handles list 425 btstack_linked_list_iterator_init(&it, &client_state->gatt_con_handles); 426 while (btstack_linked_list_iterator_has_next(&it)){ 427 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 428 if (item->value == handle){ 429 btstack_linked_list_remove(&client_state->gatt_con_handles, (btstack_linked_item_t *) item); 430 free(item); 431 } 432 } 433 434 // PART 2 - only uses handle 435 436 // find helper with given handle 437 btstack_linked_list_gatt_client_helper_t * helper = NULL; 438 btstack_linked_list_iterator_init(&it, &gatt_client_helpers); 439 while (btstack_linked_list_iterator_has_next(&it)){ 440 btstack_linked_list_gatt_client_helper_t * item = (btstack_linked_list_gatt_client_helper_t*) btstack_linked_list_iterator_next(&it); 441 if (item->con_handle == handle){ 442 helper = item; 443 break; 444 } 445 } 446 447 if (!helper) return; 448 // remove connection from helper 449 btstack_linked_list_iterator_init(&it, &helper->all_connections); 450 while (btstack_linked_list_iterator_has_next(&it)){ 451 btstack_linked_list_connection_t * item = (btstack_linked_list_connection_t*) btstack_linked_list_iterator_next(&it); 452 if (item->connection == connection){ 453 btstack_linked_list_remove(&helper->all_connections, (btstack_linked_item_t *) item); 454 free(item); 455 break; 456 } 457 } 458 459 if (helper->active_connection == connection){ 460 helper->active_connection = NULL; 461 } 462 // if helper has no more connections, call disconnect 463 if (helper->all_connections == NULL){ 464 gap_disconnect((hci_con_handle_t) helper->con_handle); 465 } 466 } 467 468 469 static void daemon_remove_gatt_client_helper(uint32_t con_handle){ 470 log_info("daemon_remove_gatt_client_helper for con_handle 0x%04x", con_handle); 471 472 btstack_linked_list_iterator_t it, cl; 473 // find helper with given handle 474 btstack_linked_list_gatt_client_helper_t * helper = NULL; 475 btstack_linked_list_iterator_init(&it, &gatt_client_helpers); 476 while (btstack_linked_list_iterator_has_next(&it)){ 477 btstack_linked_list_gatt_client_helper_t * item = (btstack_linked_list_gatt_client_helper_t*) btstack_linked_list_iterator_next(&it); 478 if (item->con_handle == con_handle){ 479 helper = item; 480 break; 481 } 482 } 483 484 if (!helper) return; 485 486 // remove all connection from helper 487 btstack_linked_list_iterator_init(&it, &helper->all_connections); 488 while (btstack_linked_list_iterator_has_next(&it)){ 489 btstack_linked_list_connection_t * item = (btstack_linked_list_connection_t*) btstack_linked_list_iterator_next(&it); 490 btstack_linked_list_remove(&helper->all_connections, (btstack_linked_item_t *) item); 491 free(item); 492 } 493 494 btstack_linked_list_remove(&gatt_client_helpers, (btstack_linked_item_t *) helper); 495 free(helper); 496 497 btstack_linked_list_iterator_init(&cl, &clients); 498 while (btstack_linked_list_iterator_has_next(&cl)){ 499 client_state_t * client_state = (client_state_t *) btstack_linked_list_iterator_next(&cl); 500 btstack_linked_list_iterator_init(&it, &client_state->gatt_con_handles); 501 while (btstack_linked_list_iterator_has_next(&it)){ 502 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 503 if (item->value == con_handle){ 504 btstack_linked_list_remove(&client_state->gatt_con_handles, (btstack_linked_item_t *) item); 505 free(item); 506 } 507 } 508 } 509 } 510 #endif 511 512 static void daemon_rfcomm_close_connection(client_state_t * daemon_client){ 513 btstack_linked_list_iterator_t it; 514 btstack_linked_list_t *rfcomm_services = &daemon_client->rfcomm_services; 515 btstack_linked_list_t *rfcomm_cids = &daemon_client->rfcomm_cids; 516 517 btstack_linked_list_iterator_init(&it, rfcomm_services); 518 while (btstack_linked_list_iterator_has_next(&it)){ 519 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 520 rfcomm_unregister_service(item->value); 521 btstack_linked_list_remove(rfcomm_services, (btstack_linked_item_t *) item); 522 free(item); 523 } 524 525 btstack_linked_list_iterator_init(&it, rfcomm_cids); 526 while (btstack_linked_list_iterator_has_next(&it)){ 527 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 528 rfcomm_disconnect(item->value); 529 btstack_linked_list_remove(rfcomm_cids, (btstack_linked_item_t *) item); 530 free(item); 531 } 532 } 533 534 535 static void daemon_l2cap_close_connection(client_state_t * daemon_client){ 536 btstack_linked_list_iterator_t it; 537 btstack_linked_list_t *l2cap_psms = &daemon_client->l2cap_psms; 538 btstack_linked_list_t *l2cap_cids = &daemon_client->l2cap_cids; 539 540 btstack_linked_list_iterator_init(&it, l2cap_psms); 541 while (btstack_linked_list_iterator_has_next(&it)){ 542 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 543 l2cap_unregister_service(item->value); 544 btstack_linked_list_remove(l2cap_psms, (btstack_linked_item_t *) item); 545 free(item); 546 } 547 548 btstack_linked_list_iterator_init(&it, l2cap_cids); 549 while (btstack_linked_list_iterator_has_next(&it)){ 550 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 551 l2cap_disconnect(item->value, 0); // note: reason isn't used 552 btstack_linked_list_remove(l2cap_cids, (btstack_linked_item_t *) item); 553 free(item); 554 } 555 } 556 557 static void daemon_sdp_close_connection(client_state_t * daemon_client){ 558 btstack_linked_list_t * list = &daemon_client->sdp_record_handles; 559 btstack_linked_list_iterator_t it; 560 btstack_linked_list_iterator_init(&it, list); 561 while (btstack_linked_list_iterator_has_next(&it)){ 562 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 563 sdp_unregister_service(item->value); 564 btstack_linked_list_remove(list, (btstack_linked_item_t *) item); 565 free(item); 566 } 567 } 568 569 static connection_t * connection_for_l2cap_cid(uint16_t cid){ 570 btstack_linked_list_iterator_t cl; 571 btstack_linked_list_iterator_init(&cl, &clients); 572 while (btstack_linked_list_iterator_has_next(&cl)){ 573 client_state_t * client_state = (client_state_t *) btstack_linked_list_iterator_next(&cl); 574 btstack_linked_list_iterator_t it; 575 btstack_linked_list_iterator_init(&it, &client_state->l2cap_cids); 576 while (btstack_linked_list_iterator_has_next(&it)){ 577 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 578 if (item->value == cid){ 579 return client_state->connection; 580 } 581 } 582 } 583 return NULL; 584 } 585 586 static const uint8_t removeServiceRecordHandleAttributeIDList[] = { 0x36, 0x00, 0x05, 0x0A, 0x00, 0x01, 0xFF, 0xFF }; 587 588 // register a service record 589 // pre: AttributeIDs are in ascending order 590 // pre: ServiceRecordHandle is first attribute and is not already registered in database 591 // @returns status 592 static uint32_t daemon_sdp_create_and_register_service(uint8_t * record){ 593 594 // create new handle 595 uint32_t record_handle = sdp_create_service_record_handle(); 596 597 // calculate size of new service record: DES (2 byte len) 598 // + ServiceRecordHandle attribute (UINT16 UINT32) + size of existing attributes 599 uint16_t recordSize = 3 + (3 + 5) + de_get_data_size(record); 600 601 // alloc memory for new service record 602 uint8_t * newRecord = malloc(recordSize); 603 if (!newRecord) return 0; 604 605 // create DES for new record 606 de_create_sequence(newRecord); 607 608 // set service record handle 609 de_add_number(newRecord, DE_UINT, DE_SIZE_16, 0); 610 de_add_number(newRecord, DE_UINT, DE_SIZE_32, record_handle); 611 612 // add other attributes 613 sdp_append_attributes_in_attributeIDList(record, (uint8_t *) removeServiceRecordHandleAttributeIDList, 0, recordSize, newRecord); 614 615 uint8_t status = sdp_register_service(newRecord); 616 617 if (status) { 618 free(newRecord); 619 return 0; 620 } 621 622 return record_handle; 623 } 624 625 static connection_t * connection_for_rfcomm_cid(uint16_t cid){ 626 btstack_linked_list_iterator_t cl; 627 btstack_linked_list_iterator_init(&cl, &clients); 628 while (btstack_linked_list_iterator_has_next(&cl)){ 629 client_state_t * client_state = (client_state_t *) btstack_linked_list_iterator_next(&cl); 630 btstack_linked_list_iterator_t it; 631 btstack_linked_list_iterator_init(&it, &client_state->rfcomm_cids); 632 while (btstack_linked_list_iterator_has_next(&it)){ 633 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 634 if (item->value == cid){ 635 return client_state->connection; 636 } 637 } 638 } 639 return NULL; 640 } 641 642 #ifdef ENABLE_BLE 643 static void daemon_gatt_client_close_connection(connection_t * connection){ 644 client_state_t * client = client_for_connection(connection); 645 if (!client) return; 646 647 btstack_linked_list_iterator_t it; 648 649 btstack_linked_list_iterator_init(&it, &client->gatt_con_handles); 650 while (btstack_linked_list_iterator_has_next(&it)){ 651 btstack_linked_list_uint32_t * item = (btstack_linked_list_uint32_t*) btstack_linked_list_iterator_next(&it); 652 daemon_remove_gatt_client_handle(connection, item->value); 653 } 654 } 655 #endif 656 657 static void daemon_disconnect_client(connection_t * connection){ 658 log_info("Daemon disconnect client %p\n",connection); 659 660 client_state_t * client = client_for_connection(connection); 661 if (!client) return; 662 663 daemon_sdp_close_connection(client); 664 daemon_rfcomm_close_connection(client); 665 daemon_l2cap_close_connection(client); 666 #ifdef ENABLE_BLE 667 // NOTE: experimental - disconnect all LE connections where GATT Client was used 668 // gatt_client_disconnect_connection(connection); 669 daemon_gatt_client_close_connection(connection); 670 #endif 671 672 btstack_linked_list_remove(&clients, (btstack_linked_item_t *) client); 673 free(client); 674 } 675 676 static void hci_emit_btstack_version(void){ 677 log_info("DAEMON_EVENT_VERSION %u.%u", BTSTACK_MAJOR, BTSTACK_MINOR); 678 uint8_t event[6]; 679 event[0] = DAEMON_EVENT_VERSION; 680 event[1] = sizeof(event) - 2; 681 event[2] = BTSTACK_MAJOR; 682 event[3] = BTSTACK_MINOR; 683 little_endian_store_16(event, 4, 3257); // last SVN commit on Google Code + 1 684 socket_connection_send_packet_all(HCI_EVENT_PACKET, 0, event, sizeof(event)); 685 } 686 687 static void hci_emit_system_bluetooth_enabled(uint8_t enabled){ 688 log_info("DAEMON_EVENT_SYSTEM_BLUETOOTH_ENABLED %u", enabled); 689 uint8_t event[3]; 690 event[0] = DAEMON_EVENT_SYSTEM_BLUETOOTH_ENABLED; 691 event[1] = sizeof(event) - 2; 692 event[2] = enabled; 693 hci_dump_packet( HCI_EVENT_PACKET, 0, event, sizeof(event)); 694 socket_connection_send_packet_all(HCI_EVENT_PACKET, 0, event, sizeof(event)); 695 } 696 697 static void send_l2cap_connection_open_failed(connection_t * connection, bd_addr_t address, uint16_t psm, uint8_t status){ 698 // emit error - see l2cap.c:l2cap_emit_channel_opened(..) 699 uint8_t event[23]; 700 memset(event, 0, sizeof(event)); 701 event[0] = L2CAP_EVENT_CHANNEL_OPENED; 702 event[1] = sizeof(event) - 2; 703 event[2] = status; 704 reverse_bd_addr(address, &event[3]); 705 // little_endian_store_16(event, 9, channel->handle); 706 little_endian_store_16(event, 11, psm); 707 // little_endian_store_16(event, 13, channel->local_cid); 708 // little_endian_store_16(event, 15, channel->remote_cid); 709 // little_endian_store_16(event, 17, channel->local_mtu); 710 // little_endian_store_16(event, 19, channel->remote_mtu); 711 // little_endian_store_16(event, 21, channel->flush_timeout); 712 hci_dump_packet( HCI_EVENT_PACKET, 0, event, sizeof(event)); 713 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, event, sizeof(event)); 714 } 715 716 static void l2cap_emit_service_registered(void *connection, uint8_t status, uint16_t psm){ 717 uint8_t event[5]; 718 event[0] = DAEMON_EVENT_L2CAP_SERVICE_REGISTERED; 719 event[1] = sizeof(event) - 2; 720 event[2] = status; 721 little_endian_store_16(event, 3, psm); 722 hci_dump_packet( HCI_EVENT_PACKET, 0, event, sizeof(event)); 723 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, event, sizeof(event)); 724 } 725 726 static void rfcomm_emit_service_registered(void *connection, uint8_t status, uint8_t channel){ 727 uint8_t event[4]; 728 event[0] = DAEMON_EVENT_RFCOMM_SERVICE_REGISTERED; 729 event[1] = sizeof(event) - 2; 730 event[2] = status; 731 event[3] = channel; 732 hci_dump_packet( HCI_EVENT_PACKET, 0, event, sizeof(event)); 733 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, event, sizeof(event)); 734 } 735 736 static void send_rfcomm_create_channel_failed(void * connection, bd_addr_t addr, uint8_t server_channel, uint8_t status){ 737 // emit error - see rfcom.c:rfcomm_emit_channel_open_failed_outgoing_memory(..) 738 uint8_t event[16]; 739 memset(event, 0, sizeof(event)); 740 uint8_t pos = 0; 741 event[pos++] = RFCOMM_EVENT_CHANNEL_OPENED; 742 event[pos++] = sizeof(event) - 2; 743 event[pos++] = status; 744 reverse_bd_addr(addr, &event[pos]); pos += 6; 745 little_endian_store_16(event, pos, 0); pos += 2; 746 event[pos++] = server_channel; 747 little_endian_store_16(event, pos, 0); pos += 2; // channel ID 748 little_endian_store_16(event, pos, 0); pos += 2; // max frame size 749 hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); 750 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, event, sizeof(event)); 751 } 752 753 // data: event(8), len(8), status(8), service_record_handle(32) 754 static void sdp_emit_service_registered(void *connection, uint32_t handle, uint8_t status) { 755 uint8_t event[7]; 756 event[0] = DAEMON_EVENT_SDP_SERVICE_REGISTERED; 757 event[1] = sizeof(event) - 2; 758 event[2] = status; 759 little_endian_store_32(event, 3, handle); 760 hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); 761 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, event, sizeof(event)); 762 } 763 764 #ifdef ENABLE_BLE 765 766 btstack_linked_list_gatt_client_helper_t * daemon_get_gatt_client_helper(hci_con_handle_t con_handle) { 767 btstack_linked_list_iterator_t it; 768 if (!gatt_client_helpers) return NULL; 769 log_debug("daemon_get_gatt_client_helper for handle 0x%02x", con_handle); 770 771 btstack_linked_list_iterator_init(&it, &gatt_client_helpers); 772 while (btstack_linked_list_iterator_has_next(&it)){ 773 btstack_linked_list_gatt_client_helper_t * item = (btstack_linked_list_gatt_client_helper_t*) btstack_linked_list_iterator_next(&it); 774 if (item->con_handle == con_handle){ 775 return item; 776 } 777 } 778 log_info("no gatt_client_helper for handle 0x%02x yet", con_handle); 779 return NULL; 780 } 781 782 static void send_gatt_query_complete(connection_t * connection, hci_con_handle_t con_handle, uint8_t status){ 783 // @format H1 784 uint8_t event[5]; 785 event[0] = GATT_EVENT_QUERY_COMPLETE; 786 event[1] = 3; 787 little_endian_store_16(event, 2, con_handle); 788 event[4] = status; 789 hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); 790 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, event, sizeof(event)); 791 } 792 793 static void send_gatt_mtu_event(connection_t * connection, hci_con_handle_t con_handle, uint16_t mtu){ 794 uint8_t event[6]; 795 int pos = 0; 796 event[pos++] = GATT_EVENT_MTU; 797 event[pos++] = sizeof(event) - 2; 798 little_endian_store_16(event, pos, con_handle); 799 pos += 2; 800 little_endian_store_16(event, pos, mtu); 801 pos += 2; 802 hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); 803 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, event, sizeof(event)); 804 } 805 806 btstack_linked_list_gatt_client_helper_t * daemon_setup_gatt_client_request(connection_t *connection, uint8_t *packet, int track_active_connection) { 807 hci_con_handle_t con_handle = little_endian_read_16(packet, 3); 808 log_info("daemon_setup_gatt_client_request for handle 0x%02x", con_handle); 809 hci_connection_t * hci_con = hci_connection_for_handle(con_handle); 810 if ((hci_con == NULL) || (hci_con->state != OPEN)){ 811 send_gatt_query_complete(connection, con_handle, GATT_CLIENT_NOT_CONNECTED); 812 return NULL; 813 } 814 815 btstack_linked_list_gatt_client_helper_t * helper = daemon_get_gatt_client_helper(con_handle); 816 817 if (!helper){ 818 log_info("helper does not exist"); 819 helper = calloc(sizeof(btstack_linked_list_gatt_client_helper_t), 1); 820 if (!helper) return NULL; 821 helper->con_handle = con_handle; 822 btstack_linked_list_add(&gatt_client_helpers, (btstack_linked_item_t *) helper); 823 } 824 825 if (track_active_connection && helper->active_connection){ 826 send_gatt_query_complete(connection, con_handle, GATT_CLIENT_BUSY); 827 return NULL; 828 } 829 830 daemon_add_gatt_client_handle(connection, con_handle); 831 832 if (track_active_connection){ 833 // remember connection responsible for this request 834 helper->active_connection = connection; 835 } 836 837 return helper; 838 } 839 840 // (de)serialize structs from/to HCI commands/events 841 842 void daemon_gatt_serialize_service(gatt_client_service_t * service, uint8_t * event, int offset){ 843 little_endian_store_16(event, offset, service->start_group_handle); 844 little_endian_store_16(event, offset+2, service->end_group_handle); 845 reverse_128(service->uuid128, &event[offset + 4]); 846 } 847 848 void daemon_gatt_serialize_characteristic(gatt_client_characteristic_t * characteristic, uint8_t * event, int offset){ 849 little_endian_store_16(event, offset, characteristic->start_handle); 850 little_endian_store_16(event, offset+2, characteristic->value_handle); 851 little_endian_store_16(event, offset+4, characteristic->end_handle); 852 little_endian_store_16(event, offset+6, characteristic->properties); 853 reverse_128(characteristic->uuid128, &event[offset+8]); 854 } 855 856 void daemon_gatt_serialize_characteristic_descriptor(gatt_client_characteristic_descriptor_t * characteristic_descriptor, uint8_t * event, int offset){ 857 little_endian_store_16(event, offset, characteristic_descriptor->handle); 858 reverse_128(characteristic_descriptor->uuid128, &event[offset+2]); 859 } 860 861 #endif 862 863 #ifdef HAVE_INTEL_USB 864 static void btstack_server_intel_firmware_done(int result){ 865 intel_firmware_loaded = 1; 866 // setup stack 867 btstack_server_configure_stack(); 868 // start power up 869 hci_power_control(HCI_POWER_ON); 870 } 871 #endif 872 873 static int btstack_command_handler(connection_t *connection, uint8_t *packet, uint16_t size){ 874 875 bd_addr_t addr; 876 #ifdef ENABLE_BLE 877 bd_addr_type_t addr_type; 878 hci_con_handle_t handle; 879 #endif 880 uint16_t cid; 881 uint16_t psm; 882 uint16_t service_channel; 883 uint16_t mtu; 884 uint8_t reason; 885 uint8_t rfcomm_channel; 886 uint8_t rfcomm_credits; 887 uint32_t service_record_handle; 888 client_state_t *client; 889 uint8_t status; 890 uint8_t * data; 891 #if defined(HAVE_MALLOC) && defined(ENABLE_BLE) 892 uint8_t uuid128[16]; 893 gatt_client_service_t service; 894 gatt_client_characteristic_t characteristic; 895 gatt_client_characteristic_descriptor_t descriptor; 896 uint16_t data_length; 897 btstack_linked_list_gatt_client_helper_t * gatt_helper; 898 #endif 899 900 uint16_t serviceSearchPatternLen; 901 uint16_t attributeIDListLen; 902 903 // verbose log info before other info to allow for better tracking 904 hci_dump_packet( HCI_COMMAND_DATA_PACKET, 1, packet, size); 905 906 // BTstack internal commands - 16 Bit OpCode, 8 Bit ParamLen, Params... 907 switch (READ_CMD_OCF(packet)){ 908 case BTSTACK_GET_STATE: 909 log_info("BTSTACK_GET_STATE"); 910 hci_emit_state(); 911 break; 912 case BTSTACK_SET_POWER_MODE: 913 log_info("BTSTACK_SET_POWER_MODE %u", packet[3]); 914 // track client power requests 915 client = client_for_connection(connection); 916 if (!client) break; 917 client->power_mode = packet[3]; 918 // handle merged state 919 if (!clients_require_power_on()){ 920 start_power_off_timer(); 921 } else if (!power_management_sleep) { 922 stop_power_off_timer(); 923 #ifdef HAVE_INTEL_USB 924 if (!intel_firmware_loaded){ 925 // before staring up the stack, load intel firmware 926 btstack_chipset_intel_download_firmware(transport, &btstack_server_intel_firmware_done); 927 break; 928 } 929 #endif 930 hci_power_control(HCI_POWER_ON); 931 } 932 break; 933 case BTSTACK_GET_VERSION: 934 log_info("BTSTACK_GET_VERSION"); 935 hci_emit_btstack_version(); 936 break; 937 #ifdef HAVE_PLATFORM_IPHONE_OS 938 case BTSTACK_SET_SYSTEM_BLUETOOTH_ENABLED: 939 log_info("BTSTACK_SET_SYSTEM_BLUETOOTH_ENABLED %u", packet[3]); 940 btstack_control_iphone_bt_set_enabled(packet[3]); 941 hci_emit_system_bluetooth_enabled(btstack_control_iphone_bt_enabled()); 942 break; 943 944 case BTSTACK_GET_SYSTEM_BLUETOOTH_ENABLED: 945 log_info("BTSTACK_GET_SYSTEM_BLUETOOTH_ENABLED"); 946 hci_emit_system_bluetooth_enabled(btstack_control_iphone_bt_enabled()); 947 break; 948 #else 949 case BTSTACK_SET_SYSTEM_BLUETOOTH_ENABLED: 950 case BTSTACK_GET_SYSTEM_BLUETOOTH_ENABLED: 951 hci_emit_system_bluetooth_enabled(0); 952 break; 953 #endif 954 case BTSTACK_SET_DISCOVERABLE: 955 log_info("BTSTACK_SET_DISCOVERABLE discoverable %u)", packet[3]); 956 // track client discoverable requests 957 client = client_for_connection(connection); 958 if (!client) break; 959 client->discoverable = packet[3]; 960 // merge state 961 gap_discoverable_control(clients_require_discoverable()); 962 break; 963 case BTSTACK_SET_BLUETOOTH_ENABLED: 964 log_info("BTSTACK_SET_BLUETOOTH_ENABLED: %u\n", packet[3]); 965 if (packet[3]) { 966 // global enable 967 global_enable = 1; 968 hci_power_control(HCI_POWER_ON); 969 } else { 970 global_enable = 0; 971 clients_clear_power_request(); 972 hci_power_control(HCI_POWER_OFF); 973 } 974 break; 975 case L2CAP_CREATE_CHANNEL_MTU: 976 reverse_bd_addr(&packet[3], addr); 977 psm = little_endian_read_16(packet, 9); 978 mtu = little_endian_read_16(packet, 11); 979 status = l2cap_create_channel(NULL, addr, psm, mtu, &cid); 980 if (status){ 981 send_l2cap_connection_open_failed(connection, addr, psm, status); 982 } else { 983 daemon_add_client_l2cap_channel(connection, cid); 984 } 985 break; 986 case L2CAP_CREATE_CHANNEL: 987 reverse_bd_addr(&packet[3], addr); 988 psm = little_endian_read_16(packet, 9); 989 mtu = 150; // until r865 990 status = l2cap_create_channel(NULL, addr, psm, mtu, &cid); 991 if (status){ 992 send_l2cap_connection_open_failed(connection, addr, psm, status); 993 } else { 994 daemon_add_client_l2cap_channel(connection, cid); 995 } 996 break; 997 case L2CAP_DISCONNECT: 998 cid = little_endian_read_16(packet, 3); 999 reason = packet[5]; 1000 l2cap_disconnect(cid, reason); 1001 break; 1002 case L2CAP_REGISTER_SERVICE: 1003 psm = little_endian_read_16(packet, 3); 1004 mtu = little_endian_read_16(packet, 5); 1005 status = l2cap_register_service(NULL, psm, mtu, LEVEL_0); 1006 daemon_add_client_l2cap_service(connection, little_endian_read_16(packet, 3)); 1007 l2cap_emit_service_registered(connection, status, psm); 1008 break; 1009 case L2CAP_UNREGISTER_SERVICE: 1010 psm = little_endian_read_16(packet, 3); 1011 daemon_remove_client_l2cap_service(connection, psm); 1012 l2cap_unregister_service(psm); 1013 break; 1014 case L2CAP_ACCEPT_CONNECTION: 1015 cid = little_endian_read_16(packet, 3); 1016 l2cap_accept_connection(cid); 1017 break; 1018 case L2CAP_DECLINE_CONNECTION: 1019 cid = little_endian_read_16(packet, 3); 1020 reason = packet[7]; 1021 l2cap_decline_connection(cid); 1022 break; 1023 case RFCOMM_CREATE_CHANNEL: 1024 reverse_bd_addr(&packet[3], addr); 1025 rfcomm_channel = packet[9]; 1026 status = rfcomm_create_channel(&stack_packet_handler, addr, rfcomm_channel, &cid); 1027 if (status){ 1028 send_rfcomm_create_channel_failed(connection, addr, rfcomm_channel, status); 1029 } else { 1030 daemon_add_client_rfcomm_channel(connection, cid); 1031 } 1032 break; 1033 case RFCOMM_CREATE_CHANNEL_WITH_CREDITS: 1034 reverse_bd_addr(&packet[3], addr); 1035 rfcomm_channel = packet[9]; 1036 rfcomm_credits = packet[10]; 1037 status = rfcomm_create_channel_with_initial_credits(&stack_packet_handler, addr, rfcomm_channel, rfcomm_credits, &cid ); 1038 if (status){ 1039 send_rfcomm_create_channel_failed(connection, addr, rfcomm_channel, status); 1040 } else { 1041 daemon_add_client_rfcomm_channel(connection, cid); 1042 } 1043 break; 1044 case RFCOMM_DISCONNECT: 1045 cid = little_endian_read_16(packet, 3); 1046 reason = packet[5]; 1047 rfcomm_disconnect(cid); 1048 break; 1049 case RFCOMM_REGISTER_SERVICE: 1050 rfcomm_channel = packet[3]; 1051 mtu = little_endian_read_16(packet, 4); 1052 status = rfcomm_register_service(&stack_packet_handler, rfcomm_channel, mtu); 1053 rfcomm_emit_service_registered(connection, status, rfcomm_channel); 1054 break; 1055 case RFCOMM_REGISTER_SERVICE_WITH_CREDITS: 1056 rfcomm_channel = packet[3]; 1057 mtu = little_endian_read_16(packet, 4); 1058 rfcomm_credits = packet[6]; 1059 status = rfcomm_register_service_with_initial_credits(&stack_packet_handler, rfcomm_channel, mtu, rfcomm_credits); 1060 rfcomm_emit_service_registered(connection, status, rfcomm_channel); 1061 break; 1062 case RFCOMM_UNREGISTER_SERVICE: 1063 service_channel = little_endian_read_16(packet, 3); 1064 daemon_remove_client_rfcomm_service(connection, service_channel); 1065 rfcomm_unregister_service(service_channel); 1066 break; 1067 case RFCOMM_ACCEPT_CONNECTION: 1068 cid = little_endian_read_16(packet, 3); 1069 rfcomm_accept_connection(cid); 1070 break; 1071 case RFCOMM_DECLINE_CONNECTION: 1072 cid = little_endian_read_16(packet, 3); 1073 reason = packet[7]; 1074 rfcomm_decline_connection(cid); 1075 break; 1076 case RFCOMM_GRANT_CREDITS: 1077 cid = little_endian_read_16(packet, 3); 1078 rfcomm_credits = packet[5]; 1079 rfcomm_grant_credits(cid, rfcomm_credits); 1080 break; 1081 case RFCOMM_PERSISTENT_CHANNEL: { 1082 // enforce \0 1083 packet[3+248] = 0; 1084 rfcomm_channel = rfcomm_service_db_channel_for_service((char*)&packet[3]); 1085 log_info("DAEMON_EVENT_RFCOMM_PERSISTENT_CHANNEL %u", rfcomm_channel); 1086 uint8_t event[4]; 1087 event[0] = DAEMON_EVENT_RFCOMM_PERSISTENT_CHANNEL; 1088 event[1] = sizeof(event) - 2; 1089 event[2] = 0; 1090 event[3] = rfcomm_channel; 1091 hci_dump_packet(HCI_EVENT_PACKET, 0, event, sizeof(event)); 1092 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, (uint8_t *) event, sizeof(event)); 1093 break; 1094 } 1095 case SDP_REGISTER_SERVICE_RECORD: 1096 log_info("SDP_REGISTER_SERVICE_RECORD size %u\n", size); 1097 service_record_handle = daemon_sdp_create_and_register_service(&packet[3]); 1098 if (service_record_handle){ 1099 daemon_add_client_sdp_service_record_handle(connection, service_record_handle); 1100 sdp_emit_service_registered(connection, service_record_handle, 0); 1101 } else { 1102 sdp_emit_service_registered(connection, 0, BTSTACK_MEMORY_ALLOC_FAILED); 1103 } 1104 break; 1105 case SDP_UNREGISTER_SERVICE_RECORD: 1106 service_record_handle = little_endian_read_32(packet, 3); 1107 log_info("SDP_UNREGISTER_SERVICE_RECORD handle 0x%x ", service_record_handle); 1108 data = sdp_get_record_for_handle(service_record_handle); 1109 sdp_unregister_service(service_record_handle); 1110 daemon_remove_client_sdp_service_record_handle(connection, service_record_handle); 1111 if (data){ 1112 free(data); 1113 } 1114 break; 1115 case SDP_CLIENT_QUERY_RFCOMM_SERVICES: 1116 reverse_bd_addr(&packet[3], addr); 1117 1118 serviceSearchPatternLen = de_get_len(&packet[9]); 1119 memcpy(serviceSearchPattern, &packet[9], serviceSearchPatternLen); 1120 1121 sdp_client_query_connection = connection; 1122 sdp_client_query_rfcomm_channel_and_name_for_search_pattern(&handle_sdp_rfcomm_service_result, addr, serviceSearchPattern); 1123 1124 break; 1125 case SDP_CLIENT_QUERY_SERVICES: 1126 reverse_bd_addr(&packet[3], addr); 1127 sdp_client_query_connection = connection; 1128 1129 serviceSearchPatternLen = de_get_len(&packet[9]); 1130 memcpy(serviceSearchPattern, &packet[9], serviceSearchPatternLen); 1131 1132 attributeIDListLen = de_get_len(&packet[9+serviceSearchPatternLen]); 1133 memcpy(attributeIDList, &packet[9+serviceSearchPatternLen], attributeIDListLen); 1134 1135 sdp_client_query(&handle_sdp_client_query_result, addr, (uint8_t*)&serviceSearchPattern[0], (uint8_t*)&attributeIDList[0]); 1136 break; 1137 #ifdef ENABLE_BLE 1138 case GAP_LE_SCAN_START: 1139 gap_start_scan(); 1140 break; 1141 case GAP_LE_SCAN_STOP: 1142 gap_stop_scan(); 1143 break; 1144 case GAP_LE_SET_SCAN_PARAMETERS: 1145 gap_set_scan_parameters(packet[3], little_endian_read_16(packet, 4), little_endian_read_16(packet, 6)); 1146 break; 1147 case GAP_LE_CONNECT: 1148 reverse_bd_addr(&packet[4], addr); 1149 addr_type = packet[3]; 1150 gap_connect(addr, addr_type); 1151 break; 1152 case GAP_LE_CONNECT_CANCEL: 1153 gap_connect_cancel(); 1154 break; 1155 case GAP_DISCONNECT: 1156 handle = little_endian_read_16(packet, 3); 1157 gap_disconnect(handle); 1158 break; 1159 #endif 1160 #if defined(HAVE_MALLOC) && defined(ENABLE_BLE) 1161 case GATT_DISCOVER_ALL_PRIMARY_SERVICES: 1162 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1163 if (!gatt_helper) break; 1164 gatt_client_discover_primary_services(&handle_gatt_client_event, gatt_helper->con_handle); 1165 break; 1166 case GATT_DISCOVER_PRIMARY_SERVICES_BY_UUID16: 1167 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1168 if (!gatt_helper) break; 1169 gatt_client_discover_primary_services_by_uuid16(&handle_gatt_client_event, gatt_helper->con_handle, little_endian_read_16(packet, 5)); 1170 break; 1171 case GATT_DISCOVER_PRIMARY_SERVICES_BY_UUID128: 1172 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1173 if (!gatt_helper) break; 1174 reverse_128(&packet[5], uuid128); 1175 gatt_client_discover_primary_services_by_uuid128(&handle_gatt_client_event, gatt_helper->con_handle, uuid128); 1176 break; 1177 case GATT_FIND_INCLUDED_SERVICES_FOR_SERVICE: 1178 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1179 if (!gatt_helper) break; 1180 gatt_client_deserialize_service(packet, 5, &service); 1181 gatt_client_find_included_services_for_service(&handle_gatt_client_event, gatt_helper->con_handle, &service); 1182 break; 1183 1184 case GATT_DISCOVER_CHARACTERISTICS_FOR_SERVICE: 1185 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1186 if (!gatt_helper) break; 1187 gatt_client_deserialize_service(packet, 5, &service); 1188 gatt_client_discover_characteristics_for_service(&handle_gatt_client_event, gatt_helper->con_handle, &service); 1189 break; 1190 case GATT_DISCOVER_CHARACTERISTICS_FOR_SERVICE_BY_UUID128: 1191 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1192 if (!gatt_helper) break; 1193 gatt_client_deserialize_service(packet, 5, &service); 1194 reverse_128(&packet[5 + SERVICE_LENGTH], uuid128); 1195 gatt_client_discover_characteristics_for_service_by_uuid128(&handle_gatt_client_event, gatt_helper->con_handle, &service, uuid128); 1196 break; 1197 case GATT_DISCOVER_CHARACTERISTIC_DESCRIPTORS: 1198 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1199 if (!gatt_helper) break; 1200 gatt_client_deserialize_characteristic(packet, 5, &characteristic); 1201 gatt_client_discover_characteristic_descriptors(&handle_gatt_client_event, gatt_helper->con_handle, &characteristic); 1202 break; 1203 1204 case GATT_READ_VALUE_OF_CHARACTERISTIC: 1205 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1206 if (!gatt_helper) break; 1207 gatt_client_deserialize_characteristic(packet, 5, &characteristic); 1208 gatt_client_read_value_of_characteristic(&handle_gatt_client_event, gatt_helper->con_handle, &characteristic); 1209 break; 1210 case GATT_READ_LONG_VALUE_OF_CHARACTERISTIC: 1211 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1212 if (!gatt_helper) break; 1213 gatt_client_deserialize_characteristic(packet, 5, &characteristic); 1214 gatt_client_read_long_value_of_characteristic(&handle_gatt_client_event, gatt_helper->con_handle, &characteristic); 1215 break; 1216 1217 case GATT_WRITE_VALUE_OF_CHARACTERISTIC_WITHOUT_RESPONSE: 1218 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 0); // note: don't track active connection 1219 if (!gatt_helper) break; 1220 gatt_client_deserialize_characteristic(packet, 5, &characteristic); 1221 data_length = little_endian_read_16(packet, 5 + CHARACTERISTIC_LENGTH); 1222 data = gatt_helper->characteristic_buffer; 1223 memcpy(data, &packet[7 + CHARACTERISTIC_LENGTH], data_length); 1224 gatt_client_write_value_of_characteristic_without_response(gatt_helper->con_handle, characteristic.value_handle, data_length, data); 1225 break; 1226 case GATT_WRITE_VALUE_OF_CHARACTERISTIC: 1227 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1228 if (!gatt_helper) break; 1229 gatt_client_deserialize_characteristic(packet, 5, &characteristic); 1230 data_length = little_endian_read_16(packet, 5 + CHARACTERISTIC_LENGTH); 1231 data = gatt_helper->characteristic_buffer; 1232 memcpy(data, &packet[7 + CHARACTERISTIC_LENGTH], data_length); 1233 gatt_client_write_value_of_characteristic(&handle_gatt_client_event, gatt_helper->con_handle, characteristic.value_handle, data_length, data); 1234 break; 1235 case GATT_WRITE_LONG_VALUE_OF_CHARACTERISTIC: 1236 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1237 if (!gatt_helper) break; 1238 gatt_client_deserialize_characteristic(packet, 5, &characteristic); 1239 data_length = little_endian_read_16(packet, 5 + CHARACTERISTIC_LENGTH); 1240 data = gatt_helper->characteristic_buffer; 1241 memcpy(data, &packet[7 + CHARACTERISTIC_LENGTH], data_length); 1242 gatt_client_write_long_value_of_characteristic(&handle_gatt_client_event, gatt_helper->con_handle, characteristic.value_handle, data_length, data); 1243 break; 1244 case GATT_RELIABLE_WRITE_LONG_VALUE_OF_CHARACTERISTIC: 1245 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1246 if (!gatt_helper) break; 1247 gatt_client_deserialize_characteristic(packet, 5, &characteristic); 1248 data_length = little_endian_read_16(packet, 5 + CHARACTERISTIC_LENGTH); 1249 data = gatt_helper->characteristic_buffer; 1250 memcpy(data, &packet[7 + CHARACTERISTIC_LENGTH], data_length); 1251 gatt_client_write_long_value_of_characteristic(&handle_gatt_client_event, gatt_helper->con_handle, characteristic.value_handle, data_length, data); 1252 break; 1253 case GATT_READ_CHARACTERISTIC_DESCRIPTOR: 1254 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1255 if (!gatt_helper) break; 1256 handle = little_endian_read_16(packet, 3); 1257 gatt_client_deserialize_characteristic_descriptor(packet, 5, &descriptor); 1258 gatt_client_read_characteristic_descriptor(&handle_gatt_client_event, gatt_helper->con_handle, &descriptor); 1259 break; 1260 case GATT_READ_LONG_CHARACTERISTIC_DESCRIPTOR: 1261 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1262 if (!gatt_helper) break; 1263 gatt_client_deserialize_characteristic_descriptor(packet, 5, &descriptor); 1264 gatt_client_read_long_characteristic_descriptor(&handle_gatt_client_event, gatt_helper->con_handle, &descriptor); 1265 break; 1266 case GATT_WRITE_CHARACTERISTIC_DESCRIPTOR: 1267 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1268 if (!gatt_helper) break; 1269 gatt_client_deserialize_characteristic_descriptor(packet, 5, &descriptor); 1270 data = gatt_helper->characteristic_buffer; 1271 data_length = little_endian_read_16(packet, 5 + CHARACTERISTIC_DESCRIPTOR_LENGTH); 1272 gatt_client_write_characteristic_descriptor(&handle_gatt_client_event, gatt_helper->con_handle, &descriptor, data_length, data); 1273 break; 1274 case GATT_WRITE_LONG_CHARACTERISTIC_DESCRIPTOR: 1275 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1276 if (!gatt_helper) break; 1277 gatt_client_deserialize_characteristic_descriptor(packet, 5, &descriptor); 1278 data = gatt_helper->characteristic_buffer; 1279 data_length = little_endian_read_16(packet, 5 + CHARACTERISTIC_DESCRIPTOR_LENGTH); 1280 gatt_client_write_long_characteristic_descriptor(&handle_gatt_client_event, gatt_helper->con_handle, &descriptor, data_length, data); 1281 break; 1282 case GATT_WRITE_CLIENT_CHARACTERISTIC_CONFIGURATION:{ 1283 uint16_t configuration = little_endian_read_16(packet, 5 + CHARACTERISTIC_LENGTH); 1284 gatt_helper = daemon_setup_gatt_client_request(connection, packet, 1); 1285 if (!gatt_helper) break; 1286 data = gatt_helper->characteristic_buffer; 1287 gatt_client_deserialize_characteristic(packet, 5, &characteristic); 1288 status = gatt_client_write_client_characteristic_configuration(&handle_gatt_client_event, gatt_helper->con_handle, &characteristic, configuration); 1289 if (status){ 1290 send_gatt_query_complete(connection, gatt_helper->con_handle, status); 1291 } 1292 break; 1293 } 1294 case GATT_GET_MTU: 1295 handle = little_endian_read_16(packet, 3); 1296 gatt_client_get_mtu(handle, &mtu); 1297 send_gatt_mtu_event(connection, handle, mtu); 1298 break; 1299 #endif 1300 #ifdef ENABLE_BLE 1301 case SM_SET_AUTHENTICATION_REQUIREMENTS: 1302 log_info("set auth %x", packet[3]); 1303 sm_set_authentication_requirements(packet[3]); 1304 break; 1305 case SM_SET_IO_CAPABILITIES: 1306 log_info("set io %x", packet[3]); 1307 sm_set_io_capabilities(packet[3]); 1308 break; 1309 case SM_BONDING_DECLINE: 1310 sm_bonding_decline(little_endian_read_16(packet, 3)); 1311 break; 1312 case SM_JUST_WORKS_CONFIRM: 1313 sm_just_works_confirm(little_endian_read_16(packet, 3)); 1314 break; 1315 case SM_NUMERIC_COMPARISON_CONFIRM: 1316 sm_numeric_comparison_confirm(little_endian_read_16(packet, 3)); 1317 break; 1318 case SM_PASSKEY_INPUT: 1319 sm_passkey_input(little_endian_read_16(packet, 3), little_endian_read_32(packet, 5)); 1320 break; 1321 #endif 1322 default: 1323 log_error("Error: command %u not implemented:", READ_CMD_OCF(packet)); 1324 break; 1325 } 1326 1327 return 0; 1328 } 1329 1330 static int daemon_client_handler(connection_t *connection, uint16_t packet_type, uint16_t channel, uint8_t *data, uint16_t length){ 1331 1332 int err = 0; 1333 client_state_t * client; 1334 1335 switch (packet_type){ 1336 case HCI_COMMAND_DATA_PACKET: 1337 if (READ_CMD_OGF(data) != OGF_BTSTACK) { 1338 // HCI Command 1339 hci_send_cmd_packet(data, length); 1340 } else { 1341 // BTstack command 1342 btstack_command_handler(connection, data, length); 1343 } 1344 break; 1345 case L2CAP_DATA_PACKET: 1346 // process l2cap packet... 1347 err = l2cap_send(channel, data, length); 1348 break; 1349 case RFCOMM_DATA_PACKET: 1350 // process l2cap packet... 1351 err = rfcomm_send(channel, data, length); 1352 break; 1353 case DAEMON_EVENT_PACKET: 1354 switch (data[0]) { 1355 case DAEMON_EVENT_CONNECTION_OPENED: 1356 log_info("DAEMON_EVENT_CONNECTION_OPENED %p\n",connection); 1357 1358 client = calloc(sizeof(client_state_t), 1); 1359 if (!client) break; // fail 1360 client->connection = connection; 1361 client->power_mode = HCI_POWER_OFF; 1362 client->discoverable = 0; 1363 btstack_linked_list_add(&clients, (btstack_linked_item_t *) client); 1364 break; 1365 case DAEMON_EVENT_CONNECTION_CLOSED: 1366 log_info("DAEMON_EVENT_CONNECTION_CLOSED %p\n",connection); 1367 daemon_disconnect_client(connection); 1368 // no clients -> no HCI connections 1369 if (!clients){ 1370 hci_disconnect_all(); 1371 } 1372 1373 // update discoverable mode 1374 gap_discoverable_control(clients_require_discoverable()); 1375 // start power off, if last active client 1376 if (!clients_require_power_on()){ 1377 start_power_off_timer(); 1378 } 1379 break; 1380 default: 1381 break; 1382 } 1383 break; 1384 } 1385 if (err) { 1386 log_info("Daemon Handler: err %d\n", err); 1387 } 1388 return err; 1389 } 1390 1391 1392 static void daemon_set_logging_enabled(int enabled){ 1393 if (enabled && !loggingEnabled){ 1394 // construct path to log file 1395 switch (BTSTACK_LOG_TYPE){ 1396 case HCI_DUMP_STDOUT: 1397 snprintf(string_buffer, sizeof(string_buffer), "stdout"); 1398 break; 1399 case HCI_DUMP_PACKETLOGGER: 1400 snprintf(string_buffer, sizeof(string_buffer), "%s/hci_dump.pklg", btstack_server_storage_path); 1401 break; 1402 case HCI_DUMP_BLUEZ: 1403 snprintf(string_buffer, sizeof(string_buffer), "%s/hci_dump.snoop", btstack_server_storage_path); 1404 break; 1405 default: 1406 break; 1407 } 1408 hci_dump_open(string_buffer, BTSTACK_LOG_TYPE); 1409 printf("Logging to %s\n", string_buffer); 1410 } 1411 if (!enabled && loggingEnabled){ 1412 hci_dump_close(); 1413 } 1414 loggingEnabled = enabled; 1415 } 1416 1417 // local cache used to manage UI status 1418 static HCI_STATE hci_state = HCI_STATE_OFF; 1419 static int num_connections = 0; 1420 static void update_ui_status(void){ 1421 if (hci_state != HCI_STATE_WORKING) { 1422 bluetooth_status_handler(BLUETOOTH_OFF); 1423 } else { 1424 if (num_connections) { 1425 bluetooth_status_handler(BLUETOOTH_ACTIVE); 1426 } else { 1427 bluetooth_status_handler(BLUETOOTH_ON); 1428 } 1429 } 1430 } 1431 1432 #ifdef USE_SPRINGBOARD 1433 static void preferences_changed_callback(void){ 1434 int logging = platform_iphone_logging_enabled(); 1435 log_info("Logging enabled: %u\n", logging); 1436 daemon_set_logging_enabled(logging); 1437 } 1438 #endif 1439 1440 static void deamon_status_event_handler(uint8_t *packet, uint16_t size){ 1441 1442 uint8_t update_status = 0; 1443 1444 // handle state event 1445 switch (hci_event_packet_get_type(packet)) { 1446 case BTSTACK_EVENT_STATE: 1447 hci_state = packet[2]; 1448 log_info("New state: %u\n", hci_state); 1449 update_status = 1; 1450 break; 1451 case BTSTACK_EVENT_NR_CONNECTIONS_CHANGED: 1452 num_connections = packet[2]; 1453 log_info("New nr connections: %u\n", num_connections); 1454 update_status = 1; 1455 break; 1456 default: 1457 break; 1458 } 1459 1460 // choose full bluetooth state 1461 if (update_status) { 1462 update_ui_status(); 1463 } 1464 } 1465 1466 static void daemon_retry_parked(void){ 1467 1468 // socket_connection_retry_parked is not reentrant 1469 static int retry_mutex = 0; 1470 1471 // lock mutex 1472 if (retry_mutex) return; 1473 retry_mutex = 1; 1474 1475 // ... try sending again 1476 socket_connection_retry_parked(); 1477 1478 // unlock mutex 1479 retry_mutex = 0; 1480 } 1481 1482 static void daemon_emit_packet(void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1483 if (connection) { 1484 socket_connection_send_packet(connection, packet_type, channel, packet, size); 1485 } else { 1486 socket_connection_send_packet_all(packet_type, channel, packet, size); 1487 } 1488 } 1489 1490 // copy from btstack_util, just using a '-' 1491 static char bd_addr_to_str_buffer[6*3]; // 12:45:78:01:34:67\0 1492 char * bd_addr_to_str_dashed(const bd_addr_t addr){ 1493 // orig code 1494 // sprintf(bd_addr_to_str_buffer, "%02x:%02x:%02x:%02x:%02x:%02x", addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 1495 // sprintf-free code 1496 char * p = bd_addr_to_str_buffer; 1497 int i; 1498 for (i = 0; i < 6 ; i++) { 1499 uint8_t byte = addr[i]; 1500 *p++ = char_for_nibble(byte >> 4); 1501 *p++ = char_for_nibble(byte & 0x0f); 1502 *p++ = '-'; 1503 } 1504 *--p = 0; 1505 return (char *) bd_addr_to_str_buffer; 1506 } 1507 1508 static uint8_t remote_name_event[2+1+6+DEVICE_NAME_LEN+1]; // +1 for \0 in log_info 1509 static void daemon_packet_handler(void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1510 uint16_t cid; 1511 int i; 1512 bd_addr_t addr; 1513 switch (packet_type) { 1514 case HCI_EVENT_PACKET: 1515 deamon_status_event_handler(packet, size); 1516 switch (hci_event_packet_get_type(packet)){ 1517 1518 case BTSTACK_EVENT_STATE: 1519 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break; 1520 if (tlv_setup_done) break; 1521 1522 // setup TLV using local address as part of the name 1523 gap_local_bd_addr(addr); 1524 log_info("BTstack up and running at %s", bd_addr_to_str(addr)); 1525 snprintf(string_buffer, sizeof(string_buffer), "%s/btstack_%s.tlv", btstack_server_storage_path, bd_addr_to_str_dashed(addr)); 1526 tlv_impl = btstack_tlv_posix_init_instance(&tlv_context, string_buffer); 1527 btstack_tlv_set_instance(tlv_impl, &tlv_context); 1528 1529 // setup link key db 1530 hci_set_link_key_db(btstack_link_key_db_tlv_get_instance(tlv_impl, &tlv_context)); 1531 1532 // init le device db to use TLV 1533 le_device_db_tlv_configure(tlv_impl, &tlv_context); 1534 le_device_db_init(); 1535 le_device_db_set_local_bd_addr(addr); 1536 1537 tlv_setup_done = 1; 1538 break; 1539 1540 case HCI_EVENT_NUMBER_OF_COMPLETED_PACKETS: 1541 // ACL buffer freed... 1542 daemon_retry_parked(); 1543 // no need to tell clients 1544 return; 1545 1546 case HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE: 1547 if (!btstack_device_name_db) break; 1548 if (packet[2]) break; // status not ok 1549 1550 reverse_bd_addr(&packet[3], addr); 1551 // fix for invalid remote names - terminate on 0xff 1552 for (i=0; i<248;i++){ 1553 if (packet[9+i] == 0xff){ 1554 packet[9+i] = 0; 1555 break; 1556 } 1557 } 1558 packet[9+248] = 0; 1559 btstack_device_name_db->put_name(addr, (device_name_t *)&packet[9]); 1560 break; 1561 1562 case HCI_EVENT_INQUIRY_RESULT: 1563 case HCI_EVENT_INQUIRY_RESULT_WITH_RSSI:{ 1564 if (!btstack_device_name_db) break; 1565 1566 // first send inq result packet 1567 daemon_emit_packet(connection, packet_type, channel, packet, size); 1568 1569 // then send cached remote names 1570 int offset = 3; 1571 for (i=0; i<packet[2];i++){ 1572 reverse_bd_addr(&packet[offset], addr); 1573 if (btstack_device_name_db->get_name(addr, (device_name_t *) &remote_name_event[9])){ 1574 remote_name_event[0] = DAEMON_EVENT_REMOTE_NAME_CACHED; 1575 remote_name_event[1] = sizeof(remote_name_event) - 2 - 1; 1576 remote_name_event[2] = 0; // just to be compatible with HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE 1577 reverse_bd_addr(addr, &remote_name_event[3]); 1578 1579 remote_name_event[9+248] = 0; // assert \0 for log_info 1580 log_info("DAEMON_EVENT_REMOTE_NAME_CACHED %s = '%s'", bd_addr_to_str(addr), &remote_name_event[9]); 1581 hci_dump_packet(HCI_EVENT_PACKET, 0, remote_name_event, sizeof(remote_name_event)-1); 1582 daemon_emit_packet(connection, HCI_EVENT_PACKET, channel, remote_name_event, sizeof(remote_name_event) -1); 1583 } 1584 offset += 14; // 6 + 1 + 1 + 1 + 3 + 2; 1585 } 1586 return; 1587 } 1588 1589 case DAEMON_EVENT_RFCOMM_CREDITS: 1590 // RFCOMM CREDITS received... 1591 daemon_retry_parked(); 1592 break; 1593 1594 case RFCOMM_EVENT_CHANNEL_OPENED: 1595 cid = little_endian_read_16(packet, 13); 1596 connection = connection_for_rfcomm_cid(cid); 1597 if (!connection) break; 1598 if (packet[2]) { 1599 daemon_remove_client_rfcomm_channel(connection, cid); 1600 } else { 1601 daemon_add_client_rfcomm_channel(connection, cid); 1602 } 1603 break; 1604 case RFCOMM_EVENT_CHANNEL_CLOSED: 1605 cid = little_endian_read_16(packet, 2); 1606 connection = connection_for_rfcomm_cid(cid); 1607 if (!connection) break; 1608 daemon_remove_client_rfcomm_channel(connection, cid); 1609 break; 1610 case DAEMON_EVENT_RFCOMM_SERVICE_REGISTERED: 1611 if (packet[2]) break; 1612 daemon_add_client_rfcomm_service(connection, packet[3]); 1613 break; 1614 case L2CAP_EVENT_CHANNEL_OPENED: 1615 cid = little_endian_read_16(packet, 13); 1616 connection = connection_for_l2cap_cid(cid); 1617 if (!connection) break; 1618 if (packet[2]) { 1619 daemon_remove_client_l2cap_channel(connection, cid); 1620 } else { 1621 daemon_add_client_l2cap_channel(connection, cid); 1622 } 1623 break; 1624 case L2CAP_EVENT_CHANNEL_CLOSED: 1625 cid = little_endian_read_16(packet, 2); 1626 connection = connection_for_l2cap_cid(cid); 1627 if (!connection) break; 1628 daemon_remove_client_l2cap_channel(connection, cid); 1629 break; 1630 #if defined(ENABLE_BLE) && defined(HAVE_MALLOC) 1631 case HCI_EVENT_DISCONNECTION_COMPLETE: 1632 daemon_remove_gatt_client_helper(little_endian_read_16(packet, 3)); 1633 break; 1634 #endif 1635 default: 1636 break; 1637 } 1638 break; 1639 case L2CAP_DATA_PACKET: 1640 connection = connection_for_l2cap_cid(channel); 1641 if (!connection) return; 1642 break; 1643 case RFCOMM_DATA_PACKET: 1644 connection = connection_for_l2cap_cid(channel); 1645 if (!connection) return; 1646 break; 1647 default: 1648 break; 1649 } 1650 1651 daemon_emit_packet(connection, packet_type, channel, packet, size); 1652 } 1653 1654 static void stack_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * packet, uint16_t size){ 1655 daemon_packet_handler(NULL, packet_type, channel, packet, size); 1656 } 1657 1658 static void handle_sdp_rfcomm_service_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1659 switch (hci_event_packet_get_type(packet)){ 1660 case SDP_EVENT_QUERY_RFCOMM_SERVICE: 1661 case SDP_EVENT_QUERY_COMPLETE: 1662 // already HCI Events, just forward them 1663 hci_dump_packet(HCI_EVENT_PACKET, 0, packet, size); 1664 socket_connection_send_packet(sdp_client_query_connection, HCI_EVENT_PACKET, 0, packet, size); 1665 break; 1666 default: 1667 break; 1668 } 1669 } 1670 1671 static void sdp_client_assert_buffer(int size){ 1672 if (size > attribute_value_buffer_size){ 1673 log_error("SDP attribute value buffer size exceeded: available %d, required %d", attribute_value_buffer_size, size); 1674 } 1675 } 1676 1677 // define new packet type SDP_CLIENT_PACKET 1678 static void handle_sdp_client_query_result(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1679 int event_len; 1680 1681 switch (hci_event_packet_get_type(packet)){ 1682 case SDP_EVENT_QUERY_ATTRIBUTE_BYTE: 1683 sdp_client_assert_buffer(sdp_event_query_attribute_byte_get_attribute_length(packet)); 1684 attribute_value[sdp_event_query_attribute_byte_get_data_offset(packet)] = sdp_event_query_attribute_byte_get_data(packet); 1685 if ((uint16_t)(sdp_event_query_attribute_byte_get_data_offset(packet)+1) == sdp_event_query_attribute_byte_get_attribute_length(packet)){ 1686 log_info_hexdump(attribute_value, sdp_event_query_attribute_byte_get_attribute_length(packet)); 1687 1688 int event_len = 1 + 3 * 2 + sdp_event_query_attribute_byte_get_attribute_length(packet); 1689 uint8_t event[event_len]; 1690 event[0] = SDP_EVENT_QUERY_ATTRIBUTE_VALUE; 1691 little_endian_store_16(event, 1, sdp_event_query_attribute_byte_get_record_id(packet)); 1692 little_endian_store_16(event, 3, sdp_event_query_attribute_byte_get_attribute_id(packet)); 1693 little_endian_store_16(event, 5, (uint16_t)sdp_event_query_attribute_byte_get_attribute_length(packet)); 1694 memcpy(&event[7], attribute_value, sdp_event_query_attribute_byte_get_attribute_length(packet)); 1695 hci_dump_packet(SDP_CLIENT_PACKET, 0, event, event_len); 1696 socket_connection_send_packet(sdp_client_query_connection, SDP_CLIENT_PACKET, 0, event, event_len); 1697 } 1698 break; 1699 case SDP_EVENT_QUERY_COMPLETE: 1700 event_len = packet[1] + 2; 1701 hci_dump_packet(HCI_EVENT_PACKET, 0, packet, event_len); 1702 socket_connection_send_packet(sdp_client_query_connection, HCI_EVENT_PACKET, 0, packet, event_len); 1703 break; 1704 } 1705 } 1706 1707 static void power_notification_callback(POWER_NOTIFICATION_t notification){ 1708 switch (notification) { 1709 case POWER_WILL_SLEEP: 1710 // let's sleep 1711 power_management_sleep = 1; 1712 hci_power_control(HCI_POWER_SLEEP); 1713 break; 1714 case POWER_WILL_WAKE_UP: 1715 // assume that all clients use Bluetooth -> if connection, start Bluetooth 1716 power_management_sleep = 0; 1717 if (clients_require_power_on()) { 1718 hci_power_control(HCI_POWER_ON); 1719 } 1720 break; 1721 default: 1722 break; 1723 } 1724 } 1725 1726 static void daemon_sigint_handler(int param){ 1727 1728 #ifdef HAVE_PLATFORM_IPHONE_OS 1729 // notify daemons 1730 notify_post("ch.ringwald.btstack.stopped"); 1731 #endif 1732 1733 log_info(" <= SIGINT received, shutting down..\n"); 1734 1735 int send_power_off = 1; 1736 #ifdef HAVE_INTEL_USB 1737 // power off and close only if hci was initialized before 1738 send_power_off = intel_firmware_loaded; 1739 #endif 1740 1741 if (send_power_off){ 1742 hci_power_control( HCI_POWER_OFF); 1743 hci_close(); 1744 } 1745 1746 log_info("Good bye, see you.\n"); 1747 1748 exit(0); 1749 } 1750 1751 // MARK: manage power off timer 1752 1753 #define USE_POWER_OFF_TIMER 1754 1755 static void stop_power_off_timer(void){ 1756 #ifdef USE_POWER_OFF_TIMER 1757 if (timeout_active) { 1758 btstack_run_loop_remove_timer(&timeout); 1759 timeout_active = 0; 1760 } 1761 #endif 1762 } 1763 1764 static void start_power_off_timer(void){ 1765 #ifdef USE_POWER_OFF_TIMER 1766 stop_power_off_timer(); 1767 btstack_run_loop_set_timer(&timeout, DAEMON_NO_ACTIVE_CLIENT_TIMEOUT); 1768 btstack_run_loop_add_timer(&timeout); 1769 timeout_active = 1; 1770 #else 1771 hci_power_control(HCI_POWER_OFF); 1772 #endif 1773 } 1774 1775 // MARK: manage list of clients 1776 1777 1778 static client_state_t * client_for_connection(connection_t *connection) { 1779 btstack_linked_item_t *it; 1780 for (it = (btstack_linked_item_t *) clients; it ; it = it->next){ 1781 client_state_t * client_state = (client_state_t *) it; 1782 if (client_state->connection == connection) { 1783 return client_state; 1784 } 1785 } 1786 return NULL; 1787 } 1788 1789 static void clients_clear_power_request(void){ 1790 btstack_linked_item_t *it; 1791 for (it = (btstack_linked_item_t *) clients; it ; it = it->next){ 1792 client_state_t * client_state = (client_state_t *) it; 1793 client_state->power_mode = HCI_POWER_OFF; 1794 } 1795 } 1796 1797 static int clients_require_power_on(void){ 1798 1799 if (global_enable) return 1; 1800 1801 btstack_linked_item_t *it; 1802 for (it = (btstack_linked_item_t *) clients; it ; it = it->next){ 1803 client_state_t * client_state = (client_state_t *) it; 1804 if (client_state->power_mode == HCI_POWER_ON) { 1805 return 1; 1806 } 1807 } 1808 return 0; 1809 } 1810 1811 static int clients_require_discoverable(void){ 1812 btstack_linked_item_t *it; 1813 for (it = (btstack_linked_item_t *) clients; it ; it = it->next){ 1814 client_state_t * client_state = (client_state_t *) it; 1815 if (client_state->discoverable) { 1816 return 1; 1817 } 1818 } 1819 return 0; 1820 } 1821 1822 static void usage(const char * name) { 1823 printf("%s, BTstack background daemon\n", name); 1824 printf("usage: %s [--help] [--tcp]\n", name); 1825 printf(" --help display this usage\n"); 1826 printf(" --tcp use TCP server on port %u\n", BTSTACK_PORT); 1827 printf("Without the --tcp option, BTstack Server is listening on unix domain socket %s\n\n", BTSTACK_UNIX); 1828 } 1829 1830 #ifdef HAVE_PLATFORM_IPHONE_OS 1831 static void * btstack_run_loop_thread(void *context){ 1832 btstack_run_loop_execute(); 1833 return NULL; 1834 } 1835 #endif 1836 1837 #ifdef ENABLE_BLE 1838 1839 static void handle_gatt_client_event(uint8_t packet_type, uint16_t channel, uint8_t * packet, uint16_t size){ 1840 1841 // only handle GATT Events 1842 switch(hci_event_packet_get_type(packet)){ 1843 case GATT_EVENT_SERVICE_QUERY_RESULT: 1844 case GATT_EVENT_INCLUDED_SERVICE_QUERY_RESULT: 1845 case GATT_EVENT_NOTIFICATION: 1846 case GATT_EVENT_INDICATION: 1847 case GATT_EVENT_CHARACTERISTIC_QUERY_RESULT: 1848 case GATT_EVENT_ALL_CHARACTERISTIC_DESCRIPTORS_QUERY_RESULT: 1849 case GATT_EVENT_CHARACTERISTIC_DESCRIPTOR_QUERY_RESULT: 1850 case GATT_EVENT_LONG_CHARACTERISTIC_DESCRIPTOR_QUERY_RESULT: 1851 case GATT_EVENT_CHARACTERISTIC_VALUE_QUERY_RESULT: 1852 case GATT_EVENT_LONG_CHARACTERISTIC_VALUE_QUERY_RESULT: 1853 case GATT_EVENT_QUERY_COMPLETE: 1854 break; 1855 default: 1856 return; 1857 } 1858 1859 hci_con_handle_t con_handle = little_endian_read_16(packet, 2); 1860 btstack_linked_list_gatt_client_helper_t * gatt_client_helper = daemon_get_gatt_client_helper(con_handle); 1861 if (!gatt_client_helper){ 1862 log_info("daemon handle_gatt_client_event: gc helper for handle 0x%2x is NULL.", con_handle); 1863 return; 1864 } 1865 1866 connection_t *connection = NULL; 1867 1868 // daemon doesn't track which connection subscribed to this particular handle, so we just notify all connections 1869 switch(hci_event_packet_get_type(packet)){ 1870 case GATT_EVENT_NOTIFICATION: 1871 case GATT_EVENT_INDICATION:{ 1872 hci_dump_packet(HCI_EVENT_PACKET, 0, packet, size); 1873 1874 btstack_linked_item_t *it; 1875 for (it = (btstack_linked_item_t *) clients; it ; it = it->next){ 1876 client_state_t * client_state = (client_state_t *) it; 1877 socket_connection_send_packet(client_state->connection, HCI_EVENT_PACKET, 0, packet, size); 1878 } 1879 return; 1880 } 1881 default: 1882 break; 1883 } 1884 1885 // otherwise, we have to have an active connection 1886 connection = gatt_client_helper->active_connection; 1887 uint16_t offset; 1888 uint16_t length; 1889 1890 if (!connection) return; 1891 1892 switch(hci_event_packet_get_type(packet)){ 1893 1894 case GATT_EVENT_SERVICE_QUERY_RESULT: 1895 case GATT_EVENT_INCLUDED_SERVICE_QUERY_RESULT: 1896 case GATT_EVENT_CHARACTERISTIC_QUERY_RESULT: 1897 case GATT_EVENT_CHARACTERISTIC_VALUE_QUERY_RESULT: 1898 case GATT_EVENT_CHARACTERISTIC_DESCRIPTOR_QUERY_RESULT: 1899 case GATT_EVENT_ALL_CHARACTERISTIC_DESCRIPTORS_QUERY_RESULT: 1900 hci_dump_packet(HCI_EVENT_PACKET, 0, packet, size); 1901 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, packet, size); 1902 break; 1903 1904 case GATT_EVENT_LONG_CHARACTERISTIC_VALUE_QUERY_RESULT: 1905 case GATT_EVENT_LONG_CHARACTERISTIC_DESCRIPTOR_QUERY_RESULT: 1906 offset = little_endian_read_16(packet, 6); 1907 length = little_endian_read_16(packet, 8); 1908 gatt_client_helper->characteristic_buffer[0] = hci_event_packet_get_type(packet); // store type (characteristic/descriptor) 1909 gatt_client_helper->characteristic_handle = little_endian_read_16(packet, 4); // store attribute handle 1910 gatt_client_helper->characteristic_length = offset + length; // update length 1911 memcpy(&gatt_client_helper->characteristic_buffer[10 + offset], &packet[10], length); 1912 break; 1913 1914 case GATT_EVENT_QUERY_COMPLETE:{ 1915 gatt_client_helper->active_connection = NULL; 1916 if (gatt_client_helper->characteristic_length){ 1917 // send re-combined long characteristic value or long characteristic descriptor value 1918 uint8_t * event = gatt_client_helper->characteristic_buffer; 1919 uint16_t event_size = 10 + gatt_client_helper->characteristic_length; 1920 // event[0] == already set by previsous case 1921 event[1] = 8 + gatt_client_helper->characteristic_length; 1922 little_endian_store_16(event, 2, little_endian_read_16(packet, 2)); 1923 little_endian_store_16(event, 4, gatt_client_helper->characteristic_handle); 1924 little_endian_store_16(event, 6, 0); // offset 1925 little_endian_store_16(event, 8, gatt_client_helper->characteristic_length); 1926 hci_dump_packet(HCI_EVENT_PACKET, 0, event, event_size); 1927 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, event, event_size); 1928 gatt_client_helper->characteristic_length = 0; 1929 } 1930 hci_dump_packet(HCI_EVENT_PACKET, 0, packet, size); 1931 socket_connection_send_packet(connection, HCI_EVENT_PACKET, 0, packet, size); 1932 break; 1933 } 1934 default: 1935 break; 1936 } 1937 } 1938 #endif 1939 1940 static char hostname[30]; 1941 1942 static void btstack_server_configure_stack(void){ 1943 // init HCI 1944 hci_init(transport, config); 1945 if (btstack_link_key_db){ 1946 hci_set_link_key_db(btstack_link_key_db); 1947 } 1948 if (control){ 1949 hci_set_control(control); 1950 } 1951 1952 // hostname for POSIX systems 1953 gethostname(hostname, 30); 1954 hostname[29] = '\0'; 1955 gap_set_local_name(hostname); 1956 1957 #ifdef HAVE_PLATFORM_IPHONE_OS 1958 // iPhone doesn't use SSP yet as there's no UI for it yet and auto accept is not an option 1959 gap_ssp_set_enable(0); 1960 #endif 1961 1962 // register for HCI events 1963 hci_event_callback_registration.callback = &stack_packet_handler; 1964 hci_add_event_handler(&hci_event_callback_registration); 1965 1966 // init L2CAP 1967 l2cap_init(); 1968 l2cap_register_packet_handler(&stack_packet_handler); 1969 timeout.process = daemon_no_connections_timeout; 1970 1971 #ifdef ENABLE_RFCOMM 1972 log_info("config.h: ENABLE_RFCOMM\n"); 1973 rfcomm_init(); 1974 #endif 1975 1976 #ifdef ENABLE_SDP 1977 sdp_init(); 1978 #endif 1979 1980 #ifdef ENABLE_BLE 1981 sm_init(); 1982 sm_event_callback_registration.callback = &stack_packet_handler; 1983 sm_add_event_handler(&sm_event_callback_registration); 1984 // sm_set_io_capabilities(IO_CAPABILITY_DISPLAY_ONLY); 1985 // sm_set_authentication_requirements( SM_AUTHREQ_BONDING | SM_AUTHREQ_MITM_PROTECTION); 1986 1987 // GATT Client 1988 gatt_client_init(); 1989 gatt_client_listen_for_characteristic_value_updates(&daemon_gatt_client_notifications, &handle_gatt_client_event, GATT_CLIENT_ANY_CONNECTION, GATT_CLIENT_ANY_VALUE_HANDLE); 1990 1991 // GATT Server - empty attribute database 1992 att_server_init(NULL, NULL, NULL); 1993 1994 #endif 1995 } 1996 1997 int btstack_server_run(int tcp_flag){ 1998 1999 if (tcp_flag){ 2000 printf("BTstack Server started on port %u\n", BTSTACK_PORT); 2001 } else { 2002 printf("BTstack Server started on socket %s\n", BTSTACK_UNIX); 2003 } 2004 2005 // handle default init 2006 if (!btstack_server_storage_path){ 2007 #ifdef _WIN32 2008 btstack_server_storage_path = strdup("."); 2009 #else 2010 btstack_server_storage_path = strdup("/tmp"); 2011 #endif 2012 } 2013 2014 // make stdout unbuffered 2015 setbuf(stdout, NULL); 2016 2017 // handle CTRL-c 2018 signal(SIGINT, daemon_sigint_handler); 2019 // handle SIGTERM - suggested for launchd 2020 signal(SIGTERM, daemon_sigint_handler); 2021 2022 socket_connection_init(); 2023 2024 btstack_control_t * control = NULL; 2025 const btstack_uart_t * uart_implementation = NULL; 2026 (void) uart_implementation; 2027 2028 #ifdef HAVE_TRANSPORT_H4 2029 hci_transport_config_uart.type = HCI_TRANSPORT_CONFIG_UART; 2030 hci_transport_config_uart.baudrate_init = UART_SPEED; 2031 hci_transport_config_uart.baudrate_main = 0; 2032 hci_transport_config_uart.flowcontrol = 1; 2033 hci_transport_config_uart.device_name = UART_DEVICE; 2034 2035 #ifndef HAVE_PLATFORM_IPHONE_OS 2036 #ifdef _WIN32 2037 uart_implementation = (const btstack_uart_t *) btstack_uart_block_windows_instance(); 2038 #else 2039 uart_implementation = btstack_uart_posix_instance(); 2040 #endif 2041 #endif 2042 2043 #ifdef HAVE_PLATFORM_IPHONE_OS 2044 // use default (max) UART baudrate over netgraph interface 2045 hci_transport_config_uart.baudrate_init = 0; 2046 #endif 2047 2048 config = &hci_transport_config_uart; 2049 transport = hci_transport_h4_instance_for_uart(uart_implementation); 2050 #endif 2051 2052 #ifdef HAVE_TRANSPORT_USB 2053 transport = hci_transport_usb_instance(); 2054 #endif 2055 2056 #ifdef HAVE_PLATFORM_IPHONE_OS 2057 control = &btstack_control_iphone; 2058 if (btstack_control_iphone_power_management_supported()){ 2059 hci_transport_h4_iphone_set_enforce_wake_device("/dev/btwake"); 2060 } 2061 bluetooth_status_handler = platform_iphone_status_handler; 2062 platform_iphone_register_window_manager_restart(update_ui_status); 2063 platform_iphone_register_preferences_changed(preferences_changed_callback); 2064 #endif 2065 2066 #ifdef BTSTACK_DEVICE_NAME_DB_INSTANCE 2067 btstack_device_name_db = BTSTACK_DEVICE_NAME_DB_INSTANCE(); 2068 #endif 2069 2070 #ifdef _WIN32 2071 btstack_run_loop_init(btstack_run_loop_windows_get_instance()); 2072 #else 2073 btstack_run_loop_init(btstack_run_loop_posix_get_instance()); 2074 #endif 2075 2076 // init power management notifications 2077 if (control && control->register_for_power_notifications){ 2078 control->register_for_power_notifications(power_notification_callback); 2079 } 2080 2081 // logging 2082 loggingEnabled = 0; 2083 int newLoggingEnabled = 1; 2084 #ifdef HAVE_PLATFORM_IPHONE_OS 2085 // iPhone has toggle in Preferences.app 2086 newLoggingEnabled = platform_iphone_logging_enabled(); 2087 #endif 2088 daemon_set_logging_enabled(newLoggingEnabled); 2089 2090 // dump version 2091 log_info("BTStack Server started\n"); 2092 log_info("version %s, build %s", BTSTACK_VERSION, BTSTACK_DATE); 2093 2094 #ifndef HAVE_INTEL_USB 2095 btstack_server_configure_stack(); 2096 #endif 2097 2098 #ifdef USE_LAUNCHD 2099 socket_connection_create_launchd(); 2100 #else 2101 // create server 2102 if (tcp_flag) { 2103 socket_connection_create_tcp(BTSTACK_PORT); 2104 } else { 2105 #ifdef HAVE_UNIX_SOCKETS 2106 socket_connection_create_unix(BTSTACK_UNIX); 2107 #endif 2108 } 2109 #endif 2110 socket_connection_register_packet_callback(&daemon_client_handler); 2111 2112 #ifdef HAVE_PLATFORM_IPHONE_OS 2113 // notify daemons 2114 notify_post("ch.ringwald.btstack.started"); 2115 2116 // spawn thread to have BTstack run loop on new thread, while main thread is used to keep CFRunLoop 2117 pthread_t run_loop; 2118 pthread_create(&run_loop, NULL, &btstack_run_loop_thread, NULL); 2119 2120 // needed to receive notifications 2121 CFRunLoopRun(); 2122 #endif 2123 // go! 2124 btstack_run_loop_execute(); 2125 return 0; 2126 } 2127 2128 int btstack_server_run_tcp(void){ 2129 return btstack_server_run(1); 2130 } 2131 2132 int main (int argc, char * const * argv){ 2133 2134 int tcp_flag = 0; 2135 struct option long_options[] = { 2136 { "tcp", no_argument, &tcp_flag, 1 }, 2137 { "help", no_argument, 0, 0 }, 2138 { 0,0,0,0 } // This is a filler for -1 2139 }; 2140 2141 while (true) { 2142 int c; 2143 int option_index = -1; 2144 c = getopt_long(argc, argv, "h", long_options, &option_index); 2145 if (c == -1) break; // no more option 2146 2147 // treat long parameter first 2148 if (option_index == -1) { 2149 switch (c) { 2150 case '?': 2151 case 'h': 2152 usage(argv[0]); 2153 return 0; 2154 break; 2155 } 2156 } else { 2157 switch (option_index) { 2158 case 1: 2159 usage(argv[0]); 2160 return 0; 2161 break; 2162 } 2163 } 2164 } 2165 2166 #ifndef HAVE_UNIX_SOCKETS 2167 // TCP is default if there are no unix sockets 2168 tcp_flag = 1; 2169 #endif 2170 2171 btstack_server_run(tcp_flag); 2172 2173 return 0; 2174 } 2175 2176 void btstack_server_set_storage_path(const char * path){ 2177 if (btstack_server_storage_path){ 2178 free((void*)btstack_server_storage_path); 2179 btstack_server_storage_path = NULL; 2180 } 2181 btstack_server_storage_path = strdup(path); 2182 log_info("Storage path %s", btstack_server_storage_path); 2183 } 2184