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__ "pbap_client.c" 39 40 #include "btstack_config.h" 41 42 #include <stdint.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 47 #include "hci_cmd.h" 48 #include "btstack_run_loop.h" 49 #include "btstack_debug.h" 50 #include "hci.h" 51 #include "btstack_memory.h" 52 #include "hci_dump.h" 53 #include "l2cap.h" 54 #include "bluetooth_sdp.h" 55 #include "classic/sdp_client_rfcomm.h" 56 #include "btstack_event.h" 57 #include "md5.h" 58 #include "yxml.h" 59 60 #include "classic/obex.h" 61 #include "classic/obex_iterator.h" 62 #include "classic/goep_client.h" 63 #include "classic/pbap_client.h" 64 65 // 796135f0-f0c5-11d8-0966- 0800200c9a66 66 static const uint8_t pbap_uuid[] = { 0x79, 0x61, 0x35, 0xf0, 0xf0, 0xc5, 0x11, 0xd8, 0x09, 0x66, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66}; 67 68 const char * pbap_phonebook_type = "x-bt/phonebook"; 69 70 const char * pbap_vcard_listing_type = "x-bt/vcard-listing"; 71 const char * pbap_vcard_listing_name = "pb"; 72 73 static uint32_t pbap_supported_features = \ 74 PBAP_SUPPORTED_FEATURES_DOWNLOAD | 75 PBAP_SUPPORTED_FEATURES_BROWSING | 76 PBAP_SUPPORTED_FEATURES_DATABASE_IDENTIFIER | 77 PBAP_SUPPORTED_FEATURES_FOLDER_VERSION_COUNTERS | 78 PBAP_SUPPORTED_FEATURES_VCARD_SELECTING | 79 PBAP_SUPPORTED_FEATURES_ENHANCED_MISSED_CALLS; 80 81 typedef enum { 82 PBAP_INIT = 0, 83 PBAP_W4_GOEP_CONNECTION, 84 PBAP_W2_SEND_CONNECT_REQUEST, 85 PBAP_W4_CONNECT_RESPONSE, 86 PBAP_W4_USER_AUTHENTICATION, 87 PBAP_W2_SEND_AUTHENTICATED_CONNECT, 88 PBAP_CONNECT_RESPONSE_RECEIVED, 89 PBAP_CONNECTED, 90 // 91 PBAP_W2_SEND_DISCONNECT_REQUEST, 92 PBAP_W4_DISCONNECT_RESPONSE, 93 // 94 PBAP_W2_PULL_PHONEBOOK, 95 PBAP_W4_PHONEBOOK, 96 PBAP_W2_SET_PATH_ROOT, 97 PBAP_W4_SET_PATH_ROOT_COMPLETE, 98 PBAP_W2_SET_PATH_ELEMENT, 99 PBAP_W4_SET_PATH_ELEMENT_COMPLETE, 100 PBAP_W2_GET_PHONEBOOK_SIZE, 101 PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE, 102 // 103 PBAP_W2_GET_CARD_LIST, 104 PBAP_W4_GET_CARD_LIST_COMPLETE, 105 106 } pbap_state_t; 107 108 typedef enum { 109 SRM_DISABLED, 110 SRM_W4_CONFIRM, 111 SRM_ENABLED_BUT_WAITING, 112 SRM_ENABLED 113 } srm_state_t; 114 115 typedef struct pbap_client { 116 pbap_state_t state; 117 uint16_t cid; 118 bd_addr_t bd_addr; 119 hci_con_handle_t con_handle; 120 uint8_t incoming; 121 uint16_t goep_cid; 122 btstack_packet_handler_t client_handler; 123 int request_number; 124 srm_state_t srm_state; 125 const char * current_folder; 126 const char * phone_number; 127 const char * phonebook_path; 128 uint16_t set_path_offset; 129 /* vcard selector / operator */ 130 uint32_t vcard_selector; 131 uint8_t vcard_selector_operator; 132 uint8_t vcard_selector_supported; 133 /* abort */ 134 uint8_t abort_operation; 135 /* authentication */ 136 uint8_t authentication_options; 137 uint16_t authentication_nonce[16]; 138 const char * authentication_password; 139 /* xml parser */ 140 yxml_t xml_parser; 141 uint8_t xml_buffer[50]; 142 /* flow control mode */ 143 uint8_t flow_control_enabled; 144 uint8_t flow_next_triggered; 145 } pbap_client_t; 146 147 static pbap_client_t _pbap_client; 148 static pbap_client_t * pbap_client = &_pbap_client; 149 150 static void pbap_client_emit_connected_event(pbap_client_t * context, uint8_t status){ 151 uint8_t event[15]; 152 int pos = 0; 153 event[pos++] = HCI_EVENT_PBAP_META; 154 pos++; // skip len 155 event[pos++] = PBAP_SUBEVENT_CONNECTION_OPENED; 156 little_endian_store_16(event,pos,context->cid); 157 pos+=2; 158 event[pos++] = status; 159 memcpy(&event[pos], context->bd_addr, 6); 160 pos += 6; 161 little_endian_store_16(event,pos,context->con_handle); 162 pos += 2; 163 event[pos++] = context->incoming; 164 event[1] = pos - 2; 165 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 166 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 167 } 168 169 static void pbap_client_emit_connection_closed_event(pbap_client_t * context){ 170 uint8_t event[5]; 171 int pos = 0; 172 event[pos++] = HCI_EVENT_PBAP_META; 173 pos++; // skip len 174 event[pos++] = PBAP_SUBEVENT_CONNECTION_CLOSED; 175 little_endian_store_16(event,pos,context->cid); 176 pos+=2; 177 event[1] = pos - 2; 178 if (pos != sizeof(event)) log_error("pbap_client_emit_connection_closed_event size %u", pos); 179 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 180 } 181 182 static void pbap_client_emit_operation_complete_event(pbap_client_t * context, uint8_t status){ 183 uint8_t event[6]; 184 int pos = 0; 185 event[pos++] = HCI_EVENT_PBAP_META; 186 pos++; // skip len 187 event[pos++] = PBAP_SUBEVENT_OPERATION_COMPLETED; 188 little_endian_store_16(event,pos,context->cid); 189 pos+=2; 190 event[pos++]= status; 191 event[1] = pos - 2; 192 if (pos != sizeof(event)) log_error("pbap_client_emit_can_send_now_event size %u", pos); 193 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 194 } 195 196 static void pbap_client_emit_phonebook_size_event(pbap_client_t * context, uint8_t status, uint16_t phonebook_size){ 197 uint8_t event[8]; 198 int pos = 0; 199 event[pos++] = HCI_EVENT_PBAP_META; 200 pos++; // skip len 201 event[pos++] = PBAP_SUBEVENT_PHONEBOOK_SIZE; 202 little_endian_store_16(event,pos,context->cid); 203 pos+=2; 204 event[pos++] = status; 205 little_endian_store_16(event,pos, phonebook_size); 206 pos+=2; 207 event[1] = pos - 2; 208 if (pos != sizeof(event)) log_error("pbap_client_emit_phonebook_size_event size %u", pos); 209 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 210 } 211 212 static void pbap_client_emit_authentication_event(pbap_client_t * context, uint8_t options){ 213 // split options 214 uint8_t user_id_required = options & 1 ? 1 : 0; 215 uint8_t full_access = options & 2 ? 1 : 0; 216 217 uint8_t event[7]; 218 int pos = 0; 219 event[pos++] = HCI_EVENT_PBAP_META; 220 pos++; // skip len 221 event[pos++] = PBAP_SUBEVENT_AUTHENTICATION_REQUEST; 222 little_endian_store_16(event,pos,context->cid); 223 pos+=2; 224 event[pos++] = user_id_required; 225 event[pos++] = full_access; 226 if (pos != sizeof(event)) log_error("pbap_client_emit_authentication_event size %u", pos); 227 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 228 } 229 230 static void pbap_client_emit_card_result_event(pbap_client_t * context, const char * name, const char * handle){ 231 uint8_t event[5 + PBAP_MAX_NAME_LEN + PBAP_MAX_HANDLE_LEN]; 232 int pos = 0; 233 event[pos++] = HCI_EVENT_PBAP_META; 234 pos++; // skip len 235 event[pos++] = PBAP_SUBEVENT_CARD_RESULT; 236 little_endian_store_16(event,pos,context->cid); 237 pos+=2; 238 int name_len = btstack_min(PBAP_MAX_NAME_LEN, strlen(name)); 239 event[pos++] = name_len; 240 memcpy(&event[pos], name, name_len); 241 pos += name_len; 242 int handle_len = btstack_min(PBAP_MAX_HANDLE_LEN, strlen(handle)); 243 event[pos++] = handle_len; 244 memcpy(&event[pos], handle, handle_len); 245 pos += handle_len; 246 event[1] = pos - 2; 247 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 248 } 249 250 static const uint8_t collon = (uint8_t) ':'; 251 252 static void pbap_handle_can_send_now(void){ 253 uint8_t path_element[20]; 254 uint16_t path_element_start; 255 uint16_t path_element_len; 256 uint8_t application_parameters[PBAP_MAX_PHONE_NUMBER_LEN + 10]; 257 uint8_t challenge_response[36]; 258 int i; 259 uint16_t phone_number_len; 260 261 MD5_CTX md5_ctx; 262 263 if (pbap_client->abort_operation){ 264 pbap_client->abort_operation = 0; 265 pbap_client->state = PBAP_CONNECTED; 266 goep_client_create_abort_request(pbap_client->goep_cid); 267 goep_client_execute(pbap_client->goep_cid); 268 return; 269 } 270 271 switch (pbap_client->state){ 272 case PBAP_W2_SEND_CONNECT_REQUEST: 273 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 274 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 275 // Mandatory if the PSE advertises a PbapSupportedFeatures attribute in its SDP record, else excluded. 276 if (goep_client_get_pbap_supported_features(pbap_client->goep_cid) != PBAP_FEATURES_NOT_PRESENT){ 277 application_parameters[0] = PBAP_APPLICATION_PARAMETER_PBAP_SUPPORTED_FEATURES; 278 application_parameters[1] = 4; 279 big_endian_store_32(application_parameters, 2, pbap_supported_features); 280 goep_client_add_header_application_parameters(pbap_client->goep_cid, 6, &application_parameters[0]); 281 } 282 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 283 goep_client_execute(pbap_client->goep_cid); 284 break; 285 case PBAP_W2_SEND_AUTHENTICATED_CONNECT: 286 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 287 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 288 // setup authentication challenge response 289 i = 0; 290 challenge_response[i++] = 0; // Tag Digest 291 challenge_response[i++] = 16; // Len 292 // calculate md5 293 MD5_Init(&md5_ctx); 294 MD5_Update(&md5_ctx, pbap_client->authentication_nonce, 16); 295 MD5_Update(&md5_ctx, &collon, 1); 296 MD5_Update(&md5_ctx, pbap_client->authentication_password, strlen(pbap_client->authentication_password)); 297 MD5_Final(&challenge_response[i], &md5_ctx); 298 i += 16; 299 challenge_response[i++] = 2; // Tag Nonce 300 challenge_response[i++] = 16; // Len 301 memcpy(&challenge_response[i], pbap_client->authentication_nonce, 16); 302 i += 16; 303 goep_client_add_header_challenge_response(pbap_client->goep_cid, i, challenge_response); 304 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 305 goep_client_execute(pbap_client->goep_cid); 306 break; 307 case PBAP_W2_SEND_DISCONNECT_REQUEST: 308 goep_client_create_disconnect_request(pbap_client->goep_cid); 309 pbap_client->state = PBAP_W4_DISCONNECT_RESPONSE; 310 goep_client_execute(pbap_client->goep_cid); 311 return; 312 case PBAP_W2_PULL_PHONEBOOK: 313 case PBAP_W2_GET_PHONEBOOK_SIZE: 314 goep_client_create_get_request(pbap_client->goep_cid); 315 if (pbap_client->request_number == 0){ 316 if (!pbap_client->flow_control_enabled){ 317 goep_client_add_header_srm_enable(pbap_client->goep_cid); 318 pbap_client->srm_state = SRM_W4_CONFIRM; 319 } 320 goep_client_add_header_type(pbap_client->goep_cid, pbap_phonebook_type); 321 goep_client_add_header_name(pbap_client->goep_cid, pbap_client->phonebook_path); 322 i = 0; 323 if (pbap_client->vcard_selector_supported){ 324 // vCard Selector 325 if (pbap_client->vcard_selector){ 326 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR; 327 application_parameters[i++] = 8; 328 memset(&application_parameters[i], 0, 4); 329 i += 4; 330 big_endian_store_32(application_parameters, i, pbap_client->vcard_selector); 331 i += 4; 332 } 333 // vCard Selector Operator 334 if (pbap_client->vcard_selector_operator != PBAP_VCARD_SELECTOR_OPERATOR_OR){ 335 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR_OPERATOR; 336 application_parameters[i++] = 1; 337 application_parameters[i++] = pbap_client->vcard_selector_operator; 338 } 339 } 340 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 341 // Regular TLV wih 1-byte len 342 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_MAX_LIST_COUNT; 343 application_parameters[i++] = 2; 344 big_endian_store_16(application_parameters, 2, 0); 345 i += 2; 346 } 347 if (i){ 348 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, application_parameters); 349 } 350 } 351 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 352 // state 353 pbap_client->state = PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE; 354 } else { 355 // state 356 pbap_client->state = PBAP_W4_PHONEBOOK; 357 } 358 // send packet 359 pbap_client->request_number++; 360 goep_client_execute(pbap_client->goep_cid); 361 break; 362 case PBAP_W2_GET_CARD_LIST: 363 goep_client_create_get_request(pbap_client->goep_cid); 364 if (pbap_client->request_number == 0){ 365 if (!pbap_client->flow_control_enabled){ 366 goep_client_add_header_srm_enable(pbap_client->goep_cid); 367 pbap_client->srm_state = SRM_W4_CONFIRM; 368 } 369 goep_client_add_header_type(pbap_client->goep_cid, pbap_vcard_listing_type); 370 goep_client_add_header_name(pbap_client->goep_cid, pbap_vcard_listing_name); 371 // Regular TLV wih 1-byte len 372 i = 0; 373 phone_number_len = btstack_min(PBAP_MAX_PHONE_NUMBER_LEN, strlen(pbap_client->phone_number)); 374 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_VALUE; 375 application_parameters[i++] = phone_number_len; 376 memcpy(&application_parameters[i], pbap_client->phone_number, phone_number_len); 377 i += phone_number_len; 378 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_PROPERTY; 379 application_parameters[i++] = 1; 380 application_parameters[i++] = 0x01; // Number 381 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 382 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 383 } 384 // send packet 385 goep_client_execute(pbap_client->goep_cid); 386 break; 387 case PBAP_W2_SET_PATH_ROOT: 388 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 389 // On Android 4.2 Cyanogenmod, using "" as path fails 390 // goep_client_add_header_name(pbap_client->goep_cid, ""); // empty == / 391 // state 392 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 393 // send packet 394 goep_client_execute(pbap_client->goep_cid); 395 break; 396 case PBAP_W2_SET_PATH_ELEMENT: 397 // find '/' or '\0' 398 path_element_start = pbap_client->set_path_offset; 399 while (pbap_client->current_folder[pbap_client->set_path_offset] != '\0' && 400 pbap_client->current_folder[pbap_client->set_path_offset] != '/'){ 401 pbap_client->set_path_offset++; 402 } 403 // skip / 404 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 405 pbap_client->set_path_offset++; 406 } 407 path_element_len = pbap_client->set_path_offset-path_element_start; 408 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 409 path_element[path_element_len] = 0; 410 411 // detect end of path (after setting path_element) 412 if (pbap_client->current_folder[pbap_client->set_path_offset] == '\0'){ 413 pbap_client->current_folder = NULL; 414 } 415 416 log_info("Path element '%s', done %u", path_element, pbap_client->current_folder == NULL); 417 418 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 419 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 420 // state 421 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 422 // send packet 423 goep_client_execute(pbap_client->goep_cid); 424 break; 425 default: 426 break; 427 } 428 } 429 430 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 431 // printf("Challenge: "); 432 // printf_hexdump(challenge_data, challenge_len); 433 int i; 434 // uint8_t charset_code = 0; 435 for (i=0 ; i<challenge_len ; ){ 436 int tag = challenge_data[i]; 437 int len = challenge_data[i + 1]; 438 i += 2; 439 switch (tag) { 440 case 0: 441 if (len != 0x10) { 442 log_error("Invalid OBEX digest len %u", len); 443 return; 444 } 445 memcpy(context->authentication_nonce, &challenge_data[i], 16); 446 // printf("Nonce: "); 447 // printf_hexdump(context->authentication_nonce, 16); 448 break; 449 case 1: 450 context->authentication_options = challenge_data[i]; 451 // printf("Options %u\n", context->authentication_options); 452 break; 453 case 2: 454 // TODO: handle charset 455 // charset_code = challenge_data[i]; 456 break; 457 } 458 i += len; 459 } 460 } 461 462 static void pbap_process_srm_headers(pbap_client_t * context, uint8_t *packet, uint16_t size){ 463 464 if (packet[0] != OBEX_RESP_CONTINUE) return; 465 466 // get SRM and SRMP Headers 467 int srm_value = OBEX_SRM_DISABLE; 468 int srmp_value = OBEX_SRMP_NEXT; 469 obex_iterator_t it; 470 for (obex_iterator_init_with_response_packet(&it, goep_client_get_request_opcode(context->goep_cid), packet, size); obex_iterator_has_more(&it) ; obex_iterator_next(&it)){ 471 uint8_t hi = obex_iterator_get_hi(&it); 472 uint16_t data_len = obex_iterator_get_data_len(&it); 473 const uint8_t * data = data = obex_iterator_get_data(&it); 474 switch (hi){ 475 case OBEX_HEADER_SINGLE_RESPONSE_MODE: 476 if (data_len != 1) break; 477 srm_value = *data; 478 break; 479 case OBEX_HEADER_SINGLE_RESPONSE_MODE_PARAMETER: 480 if (data_len != 1) break; 481 srmp_value = *data; 482 break; 483 default: 484 break; 485 } 486 } 487 488 // Update SRM state based on SRM haders 489 switch (context->srm_state){ 490 case SRM_W4_CONFIRM: 491 switch (srm_value){ 492 case OBEX_SRM_ENABLE: 493 switch (srmp_value){ 494 case OBEX_SRMP_WAIT: 495 context->srm_state = SRM_ENABLED_BUT_WAITING; 496 break; 497 default: 498 context->srm_state = SRM_ENABLED; 499 break; 500 } 501 break; 502 default: 503 context->srm_state = SRM_DISABLED; 504 break; 505 } 506 break; 507 case SRM_ENABLED_BUT_WAITING: 508 switch (srmp_value){ 509 case OBEX_SRMP_WAIT: 510 context->srm_state = SRM_ENABLED_BUT_WAITING; 511 break; 512 default: 513 context->srm_state = SRM_ENABLED; 514 break; 515 } 516 break; 517 default: 518 break; 519 } 520 log_info("SRM state %u", context->srm_state); 521 } 522 523 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 524 525 UNUSED(channel); // ok: there is no channel 526 UNUSED(size); // ok: handling own geop events 527 528 obex_iterator_t it; 529 uint8_t status; 530 int wait_for_user = 0; 531 switch (packet_type){ 532 case HCI_EVENT_PACKET: 533 switch (hci_event_packet_get_type(packet)) { 534 case HCI_EVENT_GOEP_META: 535 switch (hci_event_goep_meta_get_subevent_code(packet)){ 536 case GOEP_SUBEVENT_CONNECTION_OPENED: 537 status = goep_subevent_connection_opened_get_status(packet); 538 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 539 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 540 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 541 if (status){ 542 log_info("pbap: connection failed %u", status); 543 pbap_client->state = PBAP_INIT; 544 pbap_client_emit_connected_event(pbap_client, status); 545 } else { 546 log_info("pbap: connection established"); 547 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 548 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 549 goep_client_request_can_send_now(pbap_client->goep_cid); 550 } 551 break; 552 case GOEP_SUBEVENT_CONNECTION_CLOSED: 553 if (pbap_client->state != PBAP_CONNECTED){ 554 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 555 } 556 pbap_client->state = PBAP_INIT; 557 pbap_client_emit_connection_closed_event(pbap_client); 558 break; 559 case GOEP_SUBEVENT_CAN_SEND_NOW: 560 pbap_handle_can_send_now(); 561 break; 562 } 563 break; 564 default: 565 break; 566 } 567 break; 568 case GOEP_DATA_PACKET: 569 // TODO: handle chunked data 570 obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 571 switch (pbap_client->state){ 572 case PBAP_W4_CONNECT_RESPONSE: 573 switch (packet[0]){ 574 case OBEX_RESP_SUCCESS: 575 for (obex_iterator_init_with_response_packet(&it, goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); obex_iterator_has_more(&it) ; obex_iterator_next(&it)){ 576 uint8_t hi = obex_iterator_get_hi(&it); 577 if (hi == OBEX_HEADER_CONNECTION_ID){ 578 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 579 } 580 } 581 pbap_client->state = PBAP_CONNECTED; 582 pbap_client->vcard_selector_supported = pbap_supported_features & goep_client_get_pbap_supported_features(pbap_client->goep_cid) & PBAP_SUPPORTED_FEATURES_VCARD_SELECTING; 583 pbap_client_emit_connected_event(pbap_client, 0); 584 break; 585 case OBEX_RESP_UNAUTHORIZED: 586 for (obex_iterator_init_with_response_packet(&it, goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); obex_iterator_has_more(&it) ; obex_iterator_next(&it)){ 587 uint8_t hi = obex_iterator_get_hi(&it); 588 if (hi == OBEX_HEADER_AUTHENTICATION_CHALLENGE){ 589 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 590 } 591 } 592 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 593 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 594 break; 595 default: 596 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 597 pbap_client->state = PBAP_INIT; 598 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 599 break; 600 } 601 break; 602 case PBAP_W4_DISCONNECT_RESPONSE: 603 goep_client_disconnect(pbap_client->goep_cid); 604 break; 605 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 606 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 607 log_info("set path root/path element complete, current folder %s, path offset %u", pbap_client->current_folder, pbap_client->set_path_offset); 608 if (packet[0] == OBEX_RESP_SUCCESS){ 609 if (pbap_client->current_folder){ 610 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 611 goep_client_request_can_send_now(pbap_client->goep_cid); 612 } else { 613 pbap_client->state = PBAP_CONNECTED; 614 pbap_client_emit_operation_complete_event(pbap_client, 0); 615 } 616 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 617 pbap_client->state = PBAP_CONNECTED; 618 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 619 } else { 620 pbap_client->state = PBAP_CONNECTED; 621 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 622 } 623 break; 624 case PBAP_W4_PHONEBOOK: 625 pbap_client->flow_next_triggered = 0; 626 wait_for_user = 0; 627 for (obex_iterator_init_with_response_packet(&it, goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); obex_iterator_has_more(&it) ; obex_iterator_next(&it)){ 628 uint8_t hi = obex_iterator_get_hi(&it); 629 uint16_t data_len = obex_iterator_get_data_len(&it); 630 const uint8_t * data = data = obex_iterator_get_data(&it); 631 switch (hi){ 632 case OBEX_HEADER_BODY: 633 case OBEX_HEADER_END_OF_BODY: 634 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 635 wait_for_user++; 636 if (wait_for_user > 1){ 637 log_error("wait_for_user %u", wait_for_user); 638 } 639 break; 640 default: 641 break; 642 } 643 } 644 switch(packet[0]){ 645 case OBEX_RESP_CONTINUE: 646 pbap_process_srm_headers(pbap_client, packet, size); 647 if (pbap_client->srm_state == SRM_ENABLED) break; 648 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 649 if (!wait_for_user || pbap_client->flow_next_triggered) { 650 goep_client_request_can_send_now(pbap_client->goep_cid); 651 } 652 break; 653 case OBEX_RESP_SUCCESS: 654 pbap_client->state = PBAP_CONNECTED; 655 pbap_client_emit_operation_complete_event(pbap_client, 0); 656 break; 657 default: 658 log_info("unexpected response 0x%02x", packet[0]); 659 pbap_client->state = PBAP_CONNECTED; 660 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 661 break; 662 } 663 break; 664 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 665 pbap_client->state = PBAP_CONNECTED; 666 if (packet[0] == OBEX_RESP_SUCCESS){ 667 int have_size = 0; 668 uint16_t phonebook_size; 669 for (obex_iterator_init_with_response_packet(&it, goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); obex_iterator_has_more(&it) ; obex_iterator_next(&it)){ 670 uint8_t hi = obex_iterator_get_hi(&it); 671 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 672 uint16_t data_len = obex_iterator_get_data_len(&it); 673 const uint8_t * data = obex_iterator_get_data(&it); 674 // iterate over application headers (TLV with 1 bytes len) 675 unsigned int i = 0; 676 while (i<data_len){ 677 uint8_t tag = data[i++]; 678 uint8_t len = data[i++]; 679 if (tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE && len == 2){ 680 have_size = 1; 681 phonebook_size = big_endian_read_16(data, i); 682 } 683 i+=len; 684 } 685 } 686 } 687 if (have_size){ 688 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 689 break; 690 } 691 } 692 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 693 break; 694 case PBAP_W4_GET_CARD_LIST_COMPLETE: 695 switch (packet[0]){ 696 case OBEX_RESP_CONTINUE: 697 pbap_client->state = PBAP_W2_GET_CARD_LIST; 698 goep_client_request_can_send_now(pbap_client->goep_cid); 699 break; 700 case OBEX_RESP_SUCCESS: 701 for (obex_iterator_init_with_response_packet(&it, goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); obex_iterator_has_more(&it) ; obex_iterator_next(&it)){ 702 uint8_t hi = obex_iterator_get_hi(&it); 703 if (hi == OBEX_HEADER_END_OF_BODY){ 704 uint16_t data_len = obex_iterator_get_data_len(&it); 705 const uint8_t * data = obex_iterator_get_data(&it); 706 // now try parsing it 707 yxml_init(&pbap_client->xml_parser, pbap_client->xml_buffer, sizeof(pbap_client->xml_buffer)); 708 int card_found = 0; 709 int name_found = 0; 710 int handle_found = 0; 711 char name[PBAP_MAX_NAME_LEN]; 712 char handle[PBAP_MAX_HANDLE_LEN]; 713 name[0] = 0; 714 handle[0] = 0; 715 while (data_len--){ 716 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 717 switch (r){ 718 case YXML_ELEMSTART: 719 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 720 break; 721 case YXML_ELEMEND: 722 if (card_found){ 723 pbap_client_emit_card_result_event(pbap_client, name, handle); 724 } 725 card_found = 0; 726 break; 727 case YXML_ATTRSTART: 728 if (!card_found) break; 729 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 730 name_found = 1; 731 break; 732 } 733 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 734 handle_found = 1; 735 break; 736 } 737 break; 738 case YXML_ATTRVAL: 739 if (name_found) { 740 // "In UTF-8, characters from the U+0000..U+10FFFF range (the UTF-16 accessible range) are encoded using sequences of 1 to 4 octets." 741 if (strlen(name) + 4 + 1 >= sizeof(name)) break; 742 strcat(name, pbap_client->xml_parser.data); 743 break; 744 } 745 if (handle_found) { 746 // "In UTF-8, characters from the U+0000..U+10FFFF range (the UTF-16 accessible range) are encoded using sequences of 1 to 4 octets." 747 if (strlen(handle) + 4 + 1 >= sizeof(handle)) break; 748 strcat(handle, pbap_client->xml_parser.data); 749 break; 750 } 751 break; 752 case YXML_ATTREND: 753 name_found = 0; 754 handle_found = 0; 755 break; 756 default: 757 break; 758 } 759 } 760 // 761 pbap_client->state = PBAP_CONNECTED; 762 pbap_client_emit_operation_complete_event(pbap_client, 0); 763 } 764 } 765 break; 766 case OBEX_RESP_NOT_ACCEPTABLE: 767 pbap_client->state = PBAP_CONNECTED; 768 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 769 break; 770 default: 771 log_info("unexpected response 0x%02x", packet[0]); 772 pbap_client->state = PBAP_CONNECTED; 773 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 774 break; 775 } 776 break; 777 default: 778 break; 779 } 780 break; 781 default: 782 break; 783 } 784 } 785 786 void pbap_client_init(void){ 787 memset(pbap_client, 0, sizeof(pbap_client_t)); 788 pbap_client->state = PBAP_INIT; 789 pbap_client->cid = 1; 790 } 791 792 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 793 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 794 795 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 796 pbap_client->client_handler = handler; 797 pbap_client->vcard_selector = 0; 798 pbap_client->vcard_selector_operator = PBAP_VCARD_SELECTOR_OPERATOR_OR; 799 800 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 801 *out_cid = pbap_client->cid; 802 if (err) return err; 803 return 0; 804 } 805 806 uint8_t pbap_disconnect(uint16_t pbap_cid){ 807 UNUSED(pbap_cid); 808 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 809 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 810 goep_client_request_can_send_now(pbap_client->goep_cid); 811 return 0; 812 } 813 814 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid, const char * path){ 815 UNUSED(pbap_cid); 816 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 817 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 818 pbap_client->phonebook_path = path; 819 pbap_client->request_number = 0; 820 goep_client_request_can_send_now(pbap_client->goep_cid); 821 return 0; 822 } 823 824 uint8_t pbap_pull_phonebook(uint16_t pbap_cid, const char * path){ 825 UNUSED(pbap_cid); 826 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 827 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 828 pbap_client->phonebook_path = path; 829 pbap_client->request_number = 0; 830 goep_client_request_can_send_now(pbap_client->goep_cid); 831 return 0; 832 } 833 834 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 835 UNUSED(pbap_cid); 836 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 837 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 838 pbap_client->current_folder = path; 839 pbap_client->set_path_offset = 0; 840 goep_client_request_can_send_now(pbap_client->goep_cid); 841 return 0; 842 } 843 844 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 845 UNUSED(pbap_cid); 846 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 847 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 848 pbap_client->authentication_password = password; 849 goep_client_request_can_send_now(pbap_client->goep_cid); 850 return 0; 851 } 852 853 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 854 UNUSED(pbap_cid); 855 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 856 pbap_client->state = PBAP_W2_GET_CARD_LIST; 857 pbap_client->phone_number = phone_number; 858 goep_client_request_can_send_now(pbap_client->goep_cid); 859 return 0; 860 } 861 862 uint8_t pbap_abort(uint16_t pbap_cid){ 863 UNUSED(pbap_cid); 864 log_info("abort current operation, state 0x%02x", pbap_client->state); 865 pbap_client->abort_operation = 1; 866 goep_client_request_can_send_now(pbap_client->goep_cid); 867 return 0; 868 } 869 870 uint8_t pbap_next_packet(uint16_t pbap_cid){ 871 // log_info("pbap_next_packet, state %x", pbap_client->state); 872 UNUSED(pbap_cid); 873 if (!pbap_client->flow_control_enabled) return 0; 874 switch (pbap_client->state){ 875 case PBAP_W2_PULL_PHONEBOOK: 876 goep_client_request_can_send_now(pbap_client->goep_cid); 877 break; 878 case PBAP_W4_PHONEBOOK: 879 pbap_client->flow_next_triggered = 1; 880 break; 881 default: 882 break; 883 } 884 return 0; 885 } 886 887 uint8_t pbap_set_flow_control_mode(uint16_t pbap_cid, int enable){ 888 UNUSED(pbap_cid); 889 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 890 pbap_client->flow_control_enabled = enable; 891 return 0; 892 } 893 894 uint8_t pbap_set_vcard_selector(uint16_t pbap_cid, uint32_t vcard_selector){ 895 UNUSED(pbap_cid); 896 pbap_client->vcard_selector = vcard_selector; 897 return 0; 898 } 899 900 uint8_t pbap_set_vcard_selector_operator(uint16_t pbap_cid, int vcard_selector_operator){ 901 UNUSED(pbap_cid); 902 pbap_client->vcard_selector_operator = vcard_selector_operator; 903 return 0; 904 } 905