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_client->phonebook_path); 371 i = 0; 372 if (pbap_client->vcard_selector_supported){ 373 // vCard Selector 374 if (pbap_client->vcard_selector){ 375 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR; 376 application_parameters[i++] = 8; 377 memset(&application_parameters[i], 0, 4); 378 i += 4; 379 big_endian_store_32(application_parameters, i, pbap_client->vcard_selector); 380 i += 4; 381 } 382 // vCard Selector Operator 383 if (pbap_client->vcard_selector_operator != PBAP_VCARD_SELECTOR_OPERATOR_OR){ 384 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR_OPERATOR; 385 application_parameters[i++] = 1; 386 application_parameters[i++] = pbap_client->vcard_selector_operator; 387 } 388 } 389 if (pbap_client->phone_number){ 390 // Search by phpone number 391 phone_number_len = btstack_min(PBAP_MAX_PHONE_NUMBER_LEN, strlen(pbap_client->phone_number)); 392 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_VALUE; 393 application_parameters[i++] = phone_number_len; 394 memcpy(&application_parameters[i], pbap_client->phone_number, phone_number_len); 395 i += phone_number_len; 396 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_PROPERTY; 397 application_parameters[i++] = 1; 398 application_parameters[i++] = 0x01; // Number 399 } 400 if (i){ 401 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 402 } 403 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 404 } 405 // send packet 406 goep_client_execute(pbap_client->goep_cid); 407 break; 408 case PBAP_W2_SET_PATH_ROOT: 409 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 410 // On Android 4.2 Cyanogenmod, using "" as path fails 411 // goep_client_add_header_name(pbap_client->goep_cid, ""); // empty == / 412 // state 413 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 414 // send packet 415 goep_client_execute(pbap_client->goep_cid); 416 break; 417 case PBAP_W2_SET_PATH_ELEMENT: 418 // find '/' or '\0' 419 path_element_start = pbap_client->set_path_offset; 420 while (pbap_client->current_folder[pbap_client->set_path_offset] != '\0' && 421 pbap_client->current_folder[pbap_client->set_path_offset] != '/'){ 422 pbap_client->set_path_offset++; 423 } 424 path_element_len = pbap_client->set_path_offset-path_element_start; 425 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 426 path_element[path_element_len] = 0; 427 428 // skip / 429 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 430 pbap_client->set_path_offset++; 431 } 432 433 // detect end of path (after setting path_element) 434 if (pbap_client->current_folder[pbap_client->set_path_offset] == '\0'){ 435 pbap_client->current_folder = NULL; 436 } 437 438 log_info("Path element '%s', done %u", path_element, pbap_client->current_folder == NULL); 439 440 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 441 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 442 // state 443 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 444 // send packet 445 goep_client_execute(pbap_client->goep_cid); 446 break; 447 default: 448 break; 449 } 450 } 451 452 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 453 // printf("Challenge: "); 454 // printf_hexdump(challenge_data, challenge_len); 455 int i; 456 // uint8_t charset_code = 0; 457 for (i=0 ; i<challenge_len ; ){ 458 int tag = challenge_data[i]; 459 int len = challenge_data[i + 1]; 460 i += 2; 461 switch (tag) { 462 case 0: 463 if (len != 0x10) { 464 log_error("Invalid OBEX digest len %u", len); 465 return; 466 } 467 memcpy(context->authentication_nonce, &challenge_data[i], 16); 468 // printf("Nonce: "); 469 // printf_hexdump(context->authentication_nonce, 16); 470 break; 471 case 1: 472 context->authentication_options = challenge_data[i]; 473 // printf("Options %u\n", context->authentication_options); 474 break; 475 case 2: 476 // TODO: handle charset 477 // charset_code = challenge_data[i]; 478 break; 479 } 480 i += len; 481 } 482 } 483 484 static void pbap_process_srm_headers(pbap_client_t * context, uint8_t *packet, uint16_t size){ 485 486 if (packet[0] != OBEX_RESP_CONTINUE) return; 487 488 // get SRM and SRMP Headers 489 int srm_value = OBEX_SRM_DISABLE; 490 int srmp_value = OBEX_SRMP_NEXT; 491 obex_iterator_t it; 492 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)){ 493 uint8_t hi = obex_iterator_get_hi(&it); 494 uint16_t data_len = obex_iterator_get_data_len(&it); 495 const uint8_t * data = data = obex_iterator_get_data(&it); 496 switch (hi){ 497 case OBEX_HEADER_SINGLE_RESPONSE_MODE: 498 if (data_len != 1) break; 499 srm_value = *data; 500 break; 501 case OBEX_HEADER_SINGLE_RESPONSE_MODE_PARAMETER: 502 if (data_len != 1) break; 503 srmp_value = *data; 504 break; 505 default: 506 break; 507 } 508 } 509 510 // Update SRM state based on SRM haders 511 switch (context->srm_state){ 512 case SRM_W4_CONFIRM: 513 switch (srm_value){ 514 case OBEX_SRM_ENABLE: 515 switch (srmp_value){ 516 case OBEX_SRMP_WAIT: 517 context->srm_state = SRM_ENABLED_BUT_WAITING; 518 break; 519 default: 520 context->srm_state = SRM_ENABLED; 521 break; 522 } 523 break; 524 default: 525 context->srm_state = SRM_DISABLED; 526 break; 527 } 528 break; 529 case SRM_ENABLED_BUT_WAITING: 530 switch (srmp_value){ 531 case OBEX_SRMP_WAIT: 532 context->srm_state = SRM_ENABLED_BUT_WAITING; 533 break; 534 default: 535 context->srm_state = SRM_ENABLED; 536 break; 537 } 538 break; 539 default: 540 break; 541 } 542 log_info("SRM state %u", context->srm_state); 543 } 544 545 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 546 547 UNUSED(channel); // ok: there is no channel 548 UNUSED(size); // ok: handling own geop events 549 550 obex_iterator_t it; 551 uint8_t status; 552 int wait_for_user = 0; 553 switch (packet_type){ 554 case HCI_EVENT_PACKET: 555 switch (hci_event_packet_get_type(packet)) { 556 case HCI_EVENT_GOEP_META: 557 switch (hci_event_goep_meta_get_subevent_code(packet)){ 558 case GOEP_SUBEVENT_CONNECTION_OPENED: 559 status = goep_subevent_connection_opened_get_status(packet); 560 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 561 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 562 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 563 if (status){ 564 log_info("pbap: connection failed %u", status); 565 pbap_client->state = PBAP_INIT; 566 pbap_client_emit_connected_event(pbap_client, status); 567 } else { 568 log_info("pbap: connection established"); 569 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 570 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 571 goep_client_request_can_send_now(pbap_client->goep_cid); 572 } 573 break; 574 case GOEP_SUBEVENT_CONNECTION_CLOSED: 575 if (pbap_client->state != PBAP_CONNECTED){ 576 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 577 } 578 pbap_client->state = PBAP_INIT; 579 pbap_client_emit_connection_closed_event(pbap_client); 580 break; 581 case GOEP_SUBEVENT_CAN_SEND_NOW: 582 pbap_handle_can_send_now(); 583 break; 584 } 585 break; 586 default: 587 break; 588 } 589 break; 590 case GOEP_DATA_PACKET: 591 // TODO: handle chunked data 592 obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 593 switch (pbap_client->state){ 594 case PBAP_W4_CONNECT_RESPONSE: 595 switch (packet[0]){ 596 case OBEX_RESP_SUCCESS: 597 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)){ 598 uint8_t hi = obex_iterator_get_hi(&it); 599 if (hi == OBEX_HEADER_CONNECTION_ID){ 600 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 601 } 602 } 603 pbap_client->state = PBAP_CONNECTED; 604 pbap_client->vcard_selector_supported = pbap_supported_features & goep_client_get_pbap_supported_features(pbap_client->goep_cid) & PBAP_SUPPORTED_FEATURES_VCARD_SELECTING; 605 pbap_client_emit_connected_event(pbap_client, 0); 606 break; 607 case OBEX_RESP_UNAUTHORIZED: 608 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)){ 609 uint8_t hi = obex_iterator_get_hi(&it); 610 if (hi == OBEX_HEADER_AUTHENTICATION_CHALLENGE){ 611 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 612 } 613 } 614 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 615 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 616 break; 617 default: 618 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 619 pbap_client->state = PBAP_INIT; 620 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 621 break; 622 } 623 break; 624 case PBAP_W4_DISCONNECT_RESPONSE: 625 goep_client_disconnect(pbap_client->goep_cid); 626 break; 627 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 628 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 629 log_info("set path root/path element complete, current folder %s, path offset %u", pbap_client->current_folder, pbap_client->set_path_offset); 630 if (packet[0] == OBEX_RESP_SUCCESS){ 631 if (pbap_client->current_folder){ 632 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 633 goep_client_request_can_send_now(pbap_client->goep_cid); 634 } else { 635 pbap_client->state = PBAP_CONNECTED; 636 pbap_client_emit_operation_complete_event(pbap_client, 0); 637 } 638 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 639 pbap_client->state = PBAP_CONNECTED; 640 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 641 } else { 642 pbap_client->state = PBAP_CONNECTED; 643 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 644 } 645 break; 646 case PBAP_W4_PHONEBOOK: 647 pbap_client->flow_next_triggered = 0; 648 wait_for_user = 0; 649 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)){ 650 uint8_t hi = obex_iterator_get_hi(&it); 651 uint16_t data_len = obex_iterator_get_data_len(&it); 652 const uint8_t * data = data = obex_iterator_get_data(&it); 653 switch (hi){ 654 case OBEX_HEADER_BODY: 655 case OBEX_HEADER_END_OF_BODY: 656 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 657 wait_for_user++; 658 if (wait_for_user > 1){ 659 log_error("wait_for_user %u", wait_for_user); 660 } 661 break; 662 default: 663 break; 664 } 665 } 666 switch(packet[0]){ 667 case OBEX_RESP_CONTINUE: 668 pbap_process_srm_headers(pbap_client, packet, size); 669 if (pbap_client->srm_state == SRM_ENABLED) break; 670 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 671 if (!wait_for_user || pbap_client->flow_next_triggered) { 672 goep_client_request_can_send_now(pbap_client->goep_cid); 673 } 674 break; 675 case OBEX_RESP_SUCCESS: 676 pbap_client->state = PBAP_CONNECTED; 677 pbap_client_emit_operation_complete_event(pbap_client, 0); 678 break; 679 default: 680 log_info("unexpected response 0x%02x", packet[0]); 681 pbap_client->state = PBAP_CONNECTED; 682 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 683 break; 684 } 685 break; 686 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 687 pbap_client->state = PBAP_CONNECTED; 688 if (packet[0] == OBEX_RESP_SUCCESS){ 689 int have_size = 0; 690 uint16_t phonebook_size; 691 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)){ 692 uint8_t hi = obex_iterator_get_hi(&it); 693 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 694 uint16_t data_len = obex_iterator_get_data_len(&it); 695 const uint8_t * data = obex_iterator_get_data(&it); 696 // iterate over application headers (TLV with 1 bytes len) 697 unsigned int i = 0; 698 while (i<data_len){ 699 uint8_t tag = data[i++]; 700 uint8_t len = data[i++]; 701 if (tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE && len == 2){ 702 have_size = 1; 703 phonebook_size = big_endian_read_16(data, i); 704 } 705 i+=len; 706 } 707 } 708 } 709 if (have_size){ 710 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 711 break; 712 } 713 } 714 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 715 break; 716 case PBAP_W4_GET_CARD_LIST_COMPLETE: 717 switch (packet[0]){ 718 case OBEX_RESP_CONTINUE: 719 pbap_client->state = PBAP_W2_GET_CARD_LIST; 720 goep_client_request_can_send_now(pbap_client->goep_cid); 721 break; 722 case OBEX_RESP_SUCCESS: 723 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)){ 724 uint8_t hi = obex_iterator_get_hi(&it); 725 if (hi == OBEX_HEADER_END_OF_BODY){ 726 uint16_t data_len = obex_iterator_get_data_len(&it); 727 const uint8_t * data = obex_iterator_get_data(&it); 728 // now try parsing it 729 yxml_init(&pbap_client->xml_parser, pbap_client->xml_buffer, sizeof(pbap_client->xml_buffer)); 730 int card_found = 0; 731 int name_found = 0; 732 int handle_found = 0; 733 char name[PBAP_MAX_NAME_LEN]; 734 char handle[PBAP_MAX_HANDLE_LEN]; 735 name[0] = 0; 736 handle[0] = 0; 737 while (data_len--){ 738 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 739 switch (r){ 740 case YXML_ELEMSTART: 741 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 742 break; 743 case YXML_ELEMEND: 744 if (card_found){ 745 pbap_client_emit_card_result_event(pbap_client, name, handle); 746 } 747 card_found = 0; 748 break; 749 case YXML_ATTRSTART: 750 if (!card_found) break; 751 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 752 name_found = 1; 753 break; 754 } 755 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 756 handle_found = 1; 757 break; 758 } 759 break; 760 case YXML_ATTRVAL: 761 if (name_found) { 762 // "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." 763 if (strlen(name) + 4 + 1 >= sizeof(name)) break; 764 strcat(name, pbap_client->xml_parser.data); 765 break; 766 } 767 if (handle_found) { 768 // "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." 769 if (strlen(handle) + 4 + 1 >= sizeof(handle)) break; 770 strcat(handle, pbap_client->xml_parser.data); 771 break; 772 } 773 break; 774 case YXML_ATTREND: 775 name_found = 0; 776 handle_found = 0; 777 break; 778 default: 779 break; 780 } 781 } 782 // 783 pbap_client->state = PBAP_CONNECTED; 784 pbap_client_emit_operation_complete_event(pbap_client, 0); 785 } 786 } 787 break; 788 case OBEX_RESP_NOT_ACCEPTABLE: 789 pbap_client->state = PBAP_CONNECTED; 790 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 791 break; 792 default: 793 log_info("unexpected response 0x%02x", packet[0]); 794 pbap_client->state = PBAP_CONNECTED; 795 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 796 break; 797 } 798 break; 799 default: 800 break; 801 } 802 break; 803 default: 804 break; 805 } 806 } 807 808 void pbap_client_init(void){ 809 memset(pbap_client, 0, sizeof(pbap_client_t)); 810 pbap_client->state = PBAP_INIT; 811 pbap_client->cid = 1; 812 } 813 814 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 815 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 816 817 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 818 pbap_client->client_handler = handler; 819 pbap_client->vcard_selector = 0; 820 pbap_client->vcard_selector_operator = PBAP_VCARD_SELECTOR_OPERATOR_OR; 821 822 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 823 *out_cid = pbap_client->cid; 824 if (err) return err; 825 return 0; 826 } 827 828 uint8_t pbap_disconnect(uint16_t pbap_cid){ 829 UNUSED(pbap_cid); 830 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 831 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 832 goep_client_request_can_send_now(pbap_client->goep_cid); 833 return 0; 834 } 835 836 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid, const char * path){ 837 UNUSED(pbap_cid); 838 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 839 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 840 pbap_client->phonebook_path = path; 841 pbap_client->request_number = 0; 842 goep_client_request_can_send_now(pbap_client->goep_cid); 843 return 0; 844 } 845 846 uint8_t pbap_pull_phonebook(uint16_t pbap_cid, const char * path){ 847 UNUSED(pbap_cid); 848 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 849 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 850 pbap_client->phonebook_path = path; 851 pbap_client->request_number = 0; 852 goep_client_request_can_send_now(pbap_client->goep_cid); 853 return 0; 854 } 855 856 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 857 UNUSED(pbap_cid); 858 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 859 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 860 pbap_client->current_folder = path; 861 pbap_client->set_path_offset = 0; 862 goep_client_request_can_send_now(pbap_client->goep_cid); 863 return 0; 864 } 865 866 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 867 UNUSED(pbap_cid); 868 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 869 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 870 pbap_client->authentication_password = password; 871 goep_client_request_can_send_now(pbap_client->goep_cid); 872 return 0; 873 } 874 875 uint8_t pbap_pull_vcard_listing(uint16_t pbap_cid, const char * path){ 876 UNUSED(pbap_cid); 877 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 878 pbap_client->state = PBAP_W2_GET_CARD_LIST; 879 pbap_client->phonebook_path = path; 880 pbap_client->phone_number = NULL; 881 pbap_client->request_number = 0; 882 goep_client_request_can_send_now(pbap_client->goep_cid); 883 return 0; 884 } 885 886 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 887 UNUSED(pbap_cid); 888 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 889 pbap_client->state = PBAP_W2_GET_CARD_LIST; 890 pbap_client->phonebook_path = pbap_vcard_listing_name; 891 pbap_client->phone_number = phone_number; 892 pbap_client->request_number = 0; 893 goep_client_request_can_send_now(pbap_client->goep_cid); 894 return 0; 895 } 896 897 uint8_t pbap_abort(uint16_t pbap_cid){ 898 UNUSED(pbap_cid); 899 log_info("abort current operation, state 0x%02x", pbap_client->state); 900 pbap_client->abort_operation = 1; 901 goep_client_request_can_send_now(pbap_client->goep_cid); 902 return 0; 903 } 904 905 uint8_t pbap_next_packet(uint16_t pbap_cid){ 906 // log_info("pbap_next_packet, state %x", pbap_client->state); 907 UNUSED(pbap_cid); 908 if (!pbap_client->flow_control_enabled) return 0; 909 switch (pbap_client->state){ 910 case PBAP_W2_PULL_PHONEBOOK: 911 goep_client_request_can_send_now(pbap_client->goep_cid); 912 break; 913 case PBAP_W4_PHONEBOOK: 914 pbap_client->flow_next_triggered = 1; 915 break; 916 default: 917 break; 918 } 919 return 0; 920 } 921 922 uint8_t pbap_set_flow_control_mode(uint16_t pbap_cid, int enable){ 923 UNUSED(pbap_cid); 924 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 925 pbap_client->flow_control_enabled = enable; 926 return 0; 927 } 928 929 uint8_t pbap_set_vcard_selector(uint16_t pbap_cid, uint32_t vcard_selector){ 930 UNUSED(pbap_cid); 931 pbap_client->vcard_selector = vcard_selector; 932 return 0; 933 } 934 935 uint8_t pbap_set_vcard_selector_operator(uint16_t pbap_cid, int vcard_selector_operator){ 936 UNUSED(pbap_cid); 937 pbap_client->vcard_selector_operator = vcard_selector_operator; 938 return 0; 939 } 940