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 // default 74 static uint32_t pbap_supported_features = 0x0000; 75 76 typedef enum { 77 PBAP_INIT = 0, 78 PBAP_W4_GOEP_CONNECTION, 79 PBAP_W2_SEND_CONNECT_REQUEST, 80 PBAP_W4_CONNECT_RESPONSE, 81 PBAP_W4_USER_AUTHENTICATION, 82 PBAP_W2_SEND_AUTHENTICATED_CONNECT, 83 PBAP_CONNECT_RESPONSE_RECEIVED, 84 PBAP_CONNECTED, 85 // 86 PBAP_W2_SEND_DISCONNECT_REQUEST, 87 PBAP_W4_DISCONNECT_RESPONSE, 88 // 89 PBAP_W2_PULL_PHONEBOOK, 90 PBAP_W4_PHONEBOOK, 91 PBAP_W2_SET_PATH_ROOT, 92 PBAP_W4_SET_PATH_ROOT_COMPLETE, 93 PBAP_W2_SET_PATH_ELEMENT, 94 PBAP_W4_SET_PATH_ELEMENT_COMPLETE, 95 PBAP_W2_GET_PHONEBOOK_SIZE, 96 PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE, 97 // 98 PBAP_W2_GET_CARD_LIST, 99 PBAP_W4_GET_CARD_LIST_COMPLETE, 100 101 } pbap_state_t; 102 103 typedef enum { 104 SRM_DISABLED, 105 SRM_W4_CONFIRM, 106 SRM_ENABLED_BUT_WAITING, 107 SRM_ENABLED 108 } srm_state_t; 109 110 typedef struct pbap_client { 111 pbap_state_t state; 112 uint16_t cid; 113 bd_addr_t bd_addr; 114 hci_con_handle_t con_handle; 115 uint8_t incoming; 116 uint16_t goep_cid; 117 btstack_packet_handler_t client_handler; 118 int request_number; 119 srm_state_t srm_state; 120 int single_response_mode_parameter; 121 const char * current_folder; 122 const char * phone_number; 123 const char * phonebook_path; 124 uint16_t set_path_offset; 125 /* abort */ 126 uint8_t abort_operation; 127 /* authentication */ 128 uint8_t authentication_options; 129 uint16_t authentication_nonce[16]; 130 const char * authentication_password; 131 /* xml parser */ 132 yxml_t xml_parser; 133 uint8_t xml_buffer[50]; 134 /* flow control mode */ 135 uint8_t flow_control_enabled; 136 uint8_t flow_next_triggered; 137 } pbap_client_t; 138 139 static pbap_client_t _pbap_client; 140 static pbap_client_t * pbap_client = &_pbap_client; 141 142 static void pbap_client_emit_connected_event(pbap_client_t * context, uint8_t status){ 143 uint8_t event[15]; 144 int pos = 0; 145 event[pos++] = HCI_EVENT_PBAP_META; 146 pos++; // skip len 147 event[pos++] = PBAP_SUBEVENT_CONNECTION_OPENED; 148 little_endian_store_16(event,pos,context->cid); 149 pos+=2; 150 event[pos++] = status; 151 memcpy(&event[pos], context->bd_addr, 6); 152 pos += 6; 153 little_endian_store_16(event,pos,context->con_handle); 154 pos += 2; 155 event[pos++] = context->incoming; 156 event[1] = pos - 2; 157 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 158 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 159 } 160 161 static void pbap_client_emit_connection_closed_event(pbap_client_t * context){ 162 uint8_t event[5]; 163 int pos = 0; 164 event[pos++] = HCI_EVENT_PBAP_META; 165 pos++; // skip len 166 event[pos++] = PBAP_SUBEVENT_CONNECTION_CLOSED; 167 little_endian_store_16(event,pos,context->cid); 168 pos+=2; 169 event[1] = pos - 2; 170 if (pos != sizeof(event)) log_error("pbap_client_emit_connection_closed_event size %u", pos); 171 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 172 } 173 174 static void pbap_client_emit_operation_complete_event(pbap_client_t * context, uint8_t status){ 175 uint8_t event[6]; 176 int pos = 0; 177 event[pos++] = HCI_EVENT_PBAP_META; 178 pos++; // skip len 179 event[pos++] = PBAP_SUBEVENT_OPERATION_COMPLETED; 180 little_endian_store_16(event,pos,context->cid); 181 pos+=2; 182 event[pos++]= status; 183 event[1] = pos - 2; 184 if (pos != sizeof(event)) log_error("pbap_client_emit_can_send_now_event size %u", pos); 185 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 186 } 187 188 static void pbap_client_emit_phonebook_size_event(pbap_client_t * context, uint8_t status, uint16_t phonebook_size){ 189 uint8_t event[8]; 190 int pos = 0; 191 event[pos++] = HCI_EVENT_PBAP_META; 192 pos++; // skip len 193 event[pos++] = PBAP_SUBEVENT_PHONEBOOK_SIZE; 194 little_endian_store_16(event,pos,context->cid); 195 pos+=2; 196 event[pos++] = status; 197 little_endian_store_16(event,pos, phonebook_size); 198 pos+=2; 199 event[1] = pos - 2; 200 if (pos != sizeof(event)) log_error("pbap_client_emit_phonebook_size_event size %u", pos); 201 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 202 } 203 204 static void pbap_client_emit_authentication_event(pbap_client_t * context, uint8_t options){ 205 // split options 206 uint8_t user_id_required = options & 1 ? 1 : 0; 207 uint8_t full_access = options & 2 ? 1 : 0; 208 209 uint8_t event[7]; 210 int pos = 0; 211 event[pos++] = HCI_EVENT_PBAP_META; 212 pos++; // skip len 213 event[pos++] = PBAP_SUBEVENT_AUTHENTICATION_REQUEST; 214 little_endian_store_16(event,pos,context->cid); 215 pos+=2; 216 event[pos++] = user_id_required; 217 event[pos++] = full_access; 218 if (pos != sizeof(event)) log_error("pbap_client_emit_authentication_event size %u", pos); 219 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 220 } 221 222 static void pbap_client_emit_card_result_event(pbap_client_t * context, const char * name, const char * handle){ 223 uint8_t event[5 + PBAP_MAX_NAME_LEN + PBAP_MAX_HANDLE_LEN]; 224 int pos = 0; 225 event[pos++] = HCI_EVENT_PBAP_META; 226 pos++; // skip len 227 event[pos++] = PBAP_SUBEVENT_CARD_RESULT; 228 little_endian_store_16(event,pos,context->cid); 229 pos+=2; 230 int name_len = btstack_min(PBAP_MAX_NAME_LEN, strlen(name)); 231 event[pos++] = name_len; 232 memcpy(&event[pos], name, name_len); 233 pos += name_len; 234 int handle_len = btstack_min(PBAP_MAX_HANDLE_LEN, strlen(handle)); 235 event[pos++] = handle_len; 236 memcpy(&event[pos], handle, handle_len); 237 pos += handle_len; 238 event[1] = pos - 2; 239 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 240 } 241 242 static const uint8_t collon = (uint8_t) ':'; 243 244 static void pbap_handle_can_send_now(void){ 245 uint8_t path_element[20]; 246 uint16_t path_element_start; 247 uint16_t path_element_len; 248 uint8_t application_parameters[PBAP_MAX_PHONE_NUMBER_LEN + 10]; 249 uint8_t challenge_response[36]; 250 int i; 251 uint16_t phone_number_len; 252 253 MD5_CTX md5_ctx; 254 255 if (pbap_client->abort_operation){ 256 pbap_client->abort_operation = 0; 257 pbap_client->state = PBAP_CONNECTED; 258 goep_client_create_abort_request(pbap_client->goep_cid); 259 goep_client_execute(pbap_client->goep_cid); 260 return; 261 } 262 263 switch (pbap_client->state){ 264 case PBAP_W2_SEND_CONNECT_REQUEST: 265 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 266 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 267 // Mandatory if the PSE advertises a PbapSupportedFeatures attribute in its SDP record, else excluded. 268 if (goep_client_get_pbap_supported_features(pbap_client->goep_cid) != PBAP_FEATURES_NOT_PRESENT){ 269 application_parameters[0] = PBAP_APPLICATION_PARAMETER_PBAP_SUPPORTED_FEATURES; 270 application_parameters[1] = 4; 271 big_endian_store_32(application_parameters, 2, pbap_supported_features); 272 goep_client_add_header_application_parameters(pbap_client->goep_cid, 6, &application_parameters[0]); 273 } 274 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 275 goep_client_execute(pbap_client->goep_cid); 276 break; 277 case PBAP_W2_SEND_AUTHENTICATED_CONNECT: 278 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 279 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 280 // setup authentication challenge response 281 i = 0; 282 challenge_response[i++] = 0; // Tag Digest 283 challenge_response[i++] = 16; // Len 284 // calculate md5 285 MD5_Init(&md5_ctx); 286 MD5_Update(&md5_ctx, pbap_client->authentication_nonce, 16); 287 MD5_Update(&md5_ctx, &collon, 1); 288 MD5_Update(&md5_ctx, pbap_client->authentication_password, strlen(pbap_client->authentication_password)); 289 MD5_Final(&challenge_response[i], &md5_ctx); 290 i += 16; 291 challenge_response[i++] = 2; // Tag Nonce 292 challenge_response[i++] = 16; // Len 293 memcpy(&challenge_response[i], pbap_client->authentication_nonce, 16); 294 i += 16; 295 goep_client_add_header_challenge_response(pbap_client->goep_cid, i, challenge_response); 296 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 297 goep_client_execute(pbap_client->goep_cid); 298 break; 299 case PBAP_W2_SEND_DISCONNECT_REQUEST: 300 goep_client_create_disconnect_request(pbap_client->goep_cid); 301 pbap_client->state = PBAP_W4_DISCONNECT_RESPONSE; 302 goep_client_execute(pbap_client->goep_cid); 303 return; 304 case PBAP_W2_PULL_PHONEBOOK: 305 case PBAP_W2_GET_PHONEBOOK_SIZE: 306 goep_client_create_get_request(pbap_client->goep_cid); 307 if (pbap_client->request_number == 0){ 308 if (!pbap_client->flow_control_enabled){ 309 goep_client_add_header_srm_enable(pbap_client->goep_cid); 310 pbap_client->srm_state = SRM_W4_CONFIRM; 311 } 312 goep_client_add_header_type(pbap_client->goep_cid, pbap_phonebook_type); 313 goep_client_add_header_name(pbap_client->goep_cid, pbap_client->phonebook_path); 314 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 315 // Regular TLV wih 1-byte len 316 application_parameters[0] = PBAP_APPLICATION_PARAMETER_MAX_LIST_COUNT; 317 application_parameters[1] = 2; 318 big_endian_store_16(application_parameters, 2, 0); 319 goep_client_add_header_application_parameters(pbap_client->goep_cid, 4, &application_parameters[0]); 320 } else { 321 // 322 } 323 } 324 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 325 // state 326 pbap_client->state = PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE; 327 } else { 328 // state 329 pbap_client->state = PBAP_W4_PHONEBOOK; 330 } 331 // send packet 332 pbap_client->request_number++; 333 goep_client_execute(pbap_client->goep_cid); 334 break; 335 case PBAP_W2_GET_CARD_LIST: 336 goep_client_create_get_request(pbap_client->goep_cid); 337 if (pbap_client->request_number == 0){ 338 if (!pbap_client->flow_control_enabled){ 339 goep_client_add_header_srm_enable(pbap_client->goep_cid); 340 pbap_client->srm_state = SRM_W4_CONFIRM; 341 } 342 goep_client_add_header_type(pbap_client->goep_cid, pbap_vcard_listing_type); 343 goep_client_add_header_name(pbap_client->goep_cid, pbap_vcard_listing_name); 344 // Regular TLV wih 1-byte len 345 i = 0; 346 phone_number_len = btstack_min(PBAP_MAX_PHONE_NUMBER_LEN, strlen(pbap_client->phone_number)); 347 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_VALUE; 348 application_parameters[i++] = phone_number_len; 349 memcpy(&application_parameters[i], pbap_client->phone_number, phone_number_len); 350 i += phone_number_len; 351 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_PROPERTY; 352 application_parameters[i++] = 1; 353 application_parameters[i++] = 0x01; // Number 354 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 355 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 356 } 357 // send packet 358 goep_client_execute(pbap_client->goep_cid); 359 break; 360 case PBAP_W2_SET_PATH_ROOT: 361 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 362 // On Android 4.2 Cyanogenmod, using "" as path fails 363 // goep_client_add_header_name(pbap_client->goep_cid, ""); // empty == / 364 // state 365 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 366 // send packet 367 goep_client_execute(pbap_client->goep_cid); 368 break; 369 case PBAP_W2_SET_PATH_ELEMENT: 370 // find '/' or '\0' 371 path_element_start = pbap_client->set_path_offset; 372 while (pbap_client->current_folder[pbap_client->set_path_offset] != '\0' && 373 pbap_client->current_folder[pbap_client->set_path_offset] != '/'){ 374 pbap_client->set_path_offset++; 375 } 376 // skip / 377 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 378 pbap_client->set_path_offset++; 379 } 380 path_element_len = pbap_client->set_path_offset-path_element_start; 381 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 382 path_element[path_element_len] = 0; 383 384 // detect end of path (after setting path_element) 385 if (pbap_client->current_folder[pbap_client->set_path_offset] == '\0'){ 386 pbap_client->current_folder = NULL; 387 } 388 389 log_info("Path element '%s', done %u", path_element, pbap_client->current_folder == NULL); 390 391 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 392 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 393 // state 394 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 395 // send packet 396 goep_client_execute(pbap_client->goep_cid); 397 break; 398 default: 399 break; 400 } 401 } 402 403 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 404 // printf("Challenge: "); 405 // printf_hexdump(challenge_data, challenge_len); 406 int i; 407 // uint8_t charset_code = 0; 408 for (i=0 ; i<challenge_len ; ){ 409 int tag = challenge_data[i]; 410 int len = challenge_data[i + 1]; 411 i += 2; 412 switch (tag) { 413 case 0: 414 if (len != 0x10) { 415 log_error("Invalid OBEX digest len %u", len); 416 return; 417 } 418 memcpy(context->authentication_nonce, &challenge_data[i], 16); 419 // printf("Nonce: "); 420 // printf_hexdump(context->authentication_nonce, 16); 421 break; 422 case 1: 423 context->authentication_options = challenge_data[i]; 424 // printf("Options %u\n", context->authentication_options); 425 break; 426 case 2: 427 // TODO: handle charset 428 // charset_code = challenge_data[i]; 429 break; 430 } 431 i += len; 432 } 433 } 434 435 static void pbap_process_srm_headers(pbap_client_t * context, uint8_t *packet, uint16_t size){ 436 437 if (packet[0] != OBEX_RESP_CONTINUE) return; 438 439 // get SRM and SRMP Headers 440 int srm_value = OBEX_SRM_DISABLE; 441 int srmp_value = OBEX_SRMP_NEXT; 442 obex_iterator_t it; 443 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)){ 444 uint8_t hi = obex_iterator_get_hi(&it); 445 uint16_t data_len = obex_iterator_get_data_len(&it); 446 const uint8_t * data = data = obex_iterator_get_data(&it); 447 switch (hi){ 448 case OBEX_HEADER_SINGLE_RESPONSE_MODE: 449 if (data_len != 1) break; 450 srm_value = *data; 451 break; 452 case OBEX_HEADER_SINGLE_RESPONSE_MODE_PARAMETER: 453 if (data_len != 1) break; 454 srmp_value = *data; 455 break; 456 default: 457 break; 458 } 459 } 460 461 // Update SRM state based on SRM haders 462 switch (context->srm_state){ 463 case SRM_W4_CONFIRM: 464 switch (srm_value){ 465 case OBEX_SRM_ENABLE: 466 switch (srmp_value){ 467 case OBEX_SRMP_WAIT: 468 context->srm_state = SRM_ENABLED_BUT_WAITING; 469 break; 470 default: 471 context->srm_state = SRM_ENABLED; 472 break; 473 } 474 break; 475 default: 476 context->srm_state = SRM_DISABLED; 477 break; 478 } 479 break; 480 case SRM_ENABLED_BUT_WAITING: 481 switch (srmp_value){ 482 case OBEX_SRMP_WAIT: 483 context->srm_state = SRM_ENABLED_BUT_WAITING; 484 break; 485 default: 486 context->srm_state = SRM_ENABLED; 487 break; 488 } 489 break; 490 default: 491 break; 492 } 493 log_info("SRM state %u", context->srm_state); 494 } 495 496 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 497 498 UNUSED(channel); // ok: there is no channel 499 UNUSED(size); // ok: handling own geop events 500 501 obex_iterator_t it; 502 uint8_t status; 503 int wait_for_user = 0; 504 switch (packet_type){ 505 case HCI_EVENT_PACKET: 506 switch (hci_event_packet_get_type(packet)) { 507 case HCI_EVENT_GOEP_META: 508 switch (hci_event_goep_meta_get_subevent_code(packet)){ 509 case GOEP_SUBEVENT_CONNECTION_OPENED: 510 status = goep_subevent_connection_opened_get_status(packet); 511 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 512 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 513 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 514 if (status){ 515 log_info("pbap: connection failed %u", status); 516 pbap_client->state = PBAP_INIT; 517 pbap_client_emit_connected_event(pbap_client, status); 518 } else { 519 log_info("pbap: connection established"); 520 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 521 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 522 goep_client_request_can_send_now(pbap_client->goep_cid); 523 } 524 break; 525 case GOEP_SUBEVENT_CONNECTION_CLOSED: 526 if (pbap_client->state != PBAP_CONNECTED){ 527 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 528 } 529 pbap_client->state = PBAP_INIT; 530 pbap_client_emit_connection_closed_event(pbap_client); 531 break; 532 case GOEP_SUBEVENT_CAN_SEND_NOW: 533 pbap_handle_can_send_now(); 534 break; 535 } 536 break; 537 default: 538 break; 539 } 540 break; 541 case GOEP_DATA_PACKET: 542 // TODO: handle chunked data 543 obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 544 switch (pbap_client->state){ 545 case PBAP_W4_CONNECT_RESPONSE: 546 switch (packet[0]){ 547 case OBEX_RESP_SUCCESS: 548 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)){ 549 uint8_t hi = obex_iterator_get_hi(&it); 550 if (hi == OBEX_HEADER_CONNECTION_ID){ 551 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 552 } 553 } 554 pbap_client->state = PBAP_CONNECTED; 555 pbap_client_emit_connected_event(pbap_client, 0); 556 break; 557 case OBEX_RESP_UNAUTHORIZED: 558 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)){ 559 uint8_t hi = obex_iterator_get_hi(&it); 560 if (hi == OBEX_HEADER_AUTHENTICATION_CHALLENGE){ 561 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 562 } 563 } 564 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 565 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 566 break; 567 default: 568 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 569 pbap_client->state = PBAP_INIT; 570 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 571 break; 572 } 573 break; 574 case PBAP_W4_DISCONNECT_RESPONSE: 575 goep_client_disconnect(pbap_client->goep_cid); 576 break; 577 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 578 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 579 log_info("set path root/path element complete, current folder %s, path offset %u", pbap_client->current_folder, pbap_client->set_path_offset); 580 if (packet[0] == OBEX_RESP_SUCCESS){ 581 if (pbap_client->current_folder){ 582 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 583 goep_client_request_can_send_now(pbap_client->goep_cid); 584 } else { 585 pbap_client->state = PBAP_CONNECTED; 586 pbap_client_emit_operation_complete_event(pbap_client, 0); 587 } 588 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 589 pbap_client->state = PBAP_CONNECTED; 590 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 591 } else { 592 pbap_client->state = PBAP_CONNECTED; 593 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 594 } 595 break; 596 case PBAP_W4_PHONEBOOK: 597 pbap_client->flow_next_triggered = 0; 598 wait_for_user = 0; 599 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)){ 600 uint8_t hi = obex_iterator_get_hi(&it); 601 uint16_t data_len = obex_iterator_get_data_len(&it); 602 const uint8_t * data = data = obex_iterator_get_data(&it); 603 switch (hi){ 604 case OBEX_HEADER_BODY: 605 case OBEX_HEADER_END_OF_BODY: 606 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 607 wait_for_user++; 608 if (wait_for_user > 1){ 609 log_error("wait_for_user %u", wait_for_user); 610 } 611 break; 612 default: 613 break; 614 } 615 } 616 switch(packet[0]){ 617 case OBEX_RESP_CONTINUE: 618 pbap_process_srm_headers(pbap_client, packet, size); 619 if (pbap_client->srm_state == SRM_ENABLED) break; 620 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 621 if (!wait_for_user || pbap_client->flow_next_triggered) { 622 goep_client_request_can_send_now(pbap_client->goep_cid); 623 } 624 break; 625 case OBEX_RESP_SUCCESS: 626 pbap_client->state = PBAP_CONNECTED; 627 pbap_client_emit_operation_complete_event(pbap_client, 0); 628 break; 629 default: 630 log_info("unexpected response 0x%02x", packet[0]); 631 pbap_client->state = PBAP_CONNECTED; 632 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 633 break; 634 } 635 break; 636 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 637 pbap_client->state = PBAP_CONNECTED; 638 if (packet[0] == OBEX_RESP_SUCCESS){ 639 int have_size = 0; 640 uint16_t phonebook_size; 641 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)){ 642 uint8_t hi = obex_iterator_get_hi(&it); 643 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 644 uint16_t data_len = obex_iterator_get_data_len(&it); 645 const uint8_t * data = obex_iterator_get_data(&it); 646 // iterate over application headers (TLV with 1 bytes len) 647 unsigned int i = 0; 648 while (i<data_len){ 649 uint8_t tag = data[i++]; 650 uint8_t len = data[i++]; 651 if (tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE && len == 2){ 652 have_size = 1; 653 phonebook_size = big_endian_read_16(data, i); 654 } 655 i+=len; 656 } 657 } 658 } 659 if (have_size){ 660 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 661 break; 662 } 663 } 664 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 665 break; 666 case PBAP_W4_GET_CARD_LIST_COMPLETE: 667 switch (packet[0]){ 668 case OBEX_RESP_CONTINUE: 669 pbap_client->state = PBAP_W2_GET_CARD_LIST; 670 goep_client_request_can_send_now(pbap_client->goep_cid); 671 break; 672 case OBEX_RESP_SUCCESS: 673 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)){ 674 uint8_t hi = obex_iterator_get_hi(&it); 675 if (hi == OBEX_HEADER_END_OF_BODY){ 676 uint16_t data_len = obex_iterator_get_data_len(&it); 677 const uint8_t * data = obex_iterator_get_data(&it); 678 // now try parsing it 679 yxml_init(&pbap_client->xml_parser, pbap_client->xml_buffer, sizeof(pbap_client->xml_buffer)); 680 int card_found = 0; 681 int name_found = 0; 682 int handle_found = 0; 683 char name[PBAP_MAX_NAME_LEN]; 684 char handle[PBAP_MAX_HANDLE_LEN]; 685 name[0] = 0; 686 handle[0] = 0; 687 while (data_len--){ 688 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 689 switch (r){ 690 case YXML_ELEMSTART: 691 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 692 break; 693 case YXML_ELEMEND: 694 if (card_found){ 695 pbap_client_emit_card_result_event(pbap_client, name, handle); 696 } 697 card_found = 0; 698 break; 699 case YXML_ATTRSTART: 700 if (!card_found) break; 701 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 702 name_found = 1; 703 break; 704 } 705 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 706 handle_found = 1; 707 break; 708 } 709 break; 710 case YXML_ATTRVAL: 711 if (name_found) { 712 // "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." 713 if (strlen(name) + 4 + 1 >= sizeof(name)) break; 714 strcat(name, pbap_client->xml_parser.data); 715 break; 716 } 717 if (handle_found) { 718 // "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." 719 if (strlen(handle) + 4 + 1 >= sizeof(handle)) break; 720 strcat(handle, pbap_client->xml_parser.data); 721 break; 722 } 723 break; 724 case YXML_ATTREND: 725 name_found = 0; 726 handle_found = 0; 727 break; 728 default: 729 break; 730 } 731 } 732 // 733 pbap_client->state = PBAP_CONNECTED; 734 pbap_client_emit_operation_complete_event(pbap_client, 0); 735 } 736 } 737 break; 738 case OBEX_RESP_NOT_ACCEPTABLE: 739 pbap_client->state = PBAP_CONNECTED; 740 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 741 break; 742 default: 743 log_info("unexpected response 0x%02x", packet[0]); 744 pbap_client->state = PBAP_CONNECTED; 745 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 746 break; 747 } 748 break; 749 default: 750 break; 751 } 752 break; 753 default: 754 break; 755 } 756 } 757 758 void pbap_client_init(void){ 759 memset(pbap_client, 0, sizeof(pbap_client_t)); 760 pbap_client->state = PBAP_INIT; 761 pbap_client->cid = 1; 762 } 763 764 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 765 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 766 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 767 pbap_client->client_handler = handler; 768 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 769 *out_cid = pbap_client->cid; 770 if (err) return err; 771 return 0; 772 } 773 774 uint8_t pbap_disconnect(uint16_t pbap_cid){ 775 UNUSED(pbap_cid); 776 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 777 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 778 goep_client_request_can_send_now(pbap_client->goep_cid); 779 return 0; 780 } 781 782 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid, const char * path){ 783 UNUSED(pbap_cid); 784 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 785 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 786 pbap_client->phonebook_path = path; 787 pbap_client->request_number = 0; 788 goep_client_request_can_send_now(pbap_client->goep_cid); 789 return 0; 790 } 791 792 uint8_t pbap_pull_phonebook(uint16_t pbap_cid, const char * path){ 793 UNUSED(pbap_cid); 794 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 795 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 796 pbap_client->phonebook_path = path; 797 pbap_client->request_number = 0; 798 goep_client_request_can_send_now(pbap_client->goep_cid); 799 return 0; 800 } 801 802 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 803 UNUSED(pbap_cid); 804 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 805 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 806 pbap_client->current_folder = path; 807 pbap_client->set_path_offset = 0; 808 goep_client_request_can_send_now(pbap_client->goep_cid); 809 return 0; 810 } 811 812 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 813 UNUSED(pbap_cid); 814 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 815 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 816 pbap_client->authentication_password = password; 817 goep_client_request_can_send_now(pbap_client->goep_cid); 818 return 0; 819 } 820 821 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 822 UNUSED(pbap_cid); 823 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 824 pbap_client->state = PBAP_W2_GET_CARD_LIST; 825 pbap_client->phone_number = phone_number; 826 goep_client_request_can_send_now(pbap_client->goep_cid); 827 return 0; 828 } 829 830 uint8_t pbap_abort(uint16_t pbap_cid){ 831 UNUSED(pbap_cid); 832 log_info("abort current operation, state 0x%02x", pbap_client->state); 833 pbap_client->abort_operation = 1; 834 goep_client_request_can_send_now(pbap_client->goep_cid); 835 return 0; 836 } 837 838 uint8_t pbap_next_packet(uint16_t pbap_cid){ 839 // log_info("pbap_next_packet, state %x", pbap_client->state); 840 UNUSED(pbap_cid); 841 if (!pbap_client->flow_control_enabled) return 0; 842 switch (pbap_client->state){ 843 case PBAP_W2_PULL_PHONEBOOK: 844 goep_client_request_can_send_now(pbap_client->goep_cid); 845 break; 846 case PBAP_W4_PHONEBOOK: 847 pbap_client->flow_next_triggered = 1; 848 break; 849 default: 850 break; 851 } 852 return 0; 853 } 854 855 uint8_t pbap_set_flow_control_mode(uint16_t pbap_cid, int enable){ 856 UNUSED(pbap_cid); 857 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 858 pbap_client->flow_control_enabled = enable; 859 return 0; 860 } 861