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