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 const char * pbap_vcard_listing_type = "x-bt/vcard-listing"; 70 const char * pbap_vcard_entry_type = "x-bt/vcard"; 71 72 const char * pbap_vcard_listing_name = "pb"; 73 74 static uint32_t pbap_supported_features = \ 75 PBAP_SUPPORTED_FEATURES_DOWNLOAD | 76 PBAP_SUPPORTED_FEATURES_BROWSING | 77 PBAP_SUPPORTED_FEATURES_DATABASE_IDENTIFIER | 78 PBAP_SUPPORTED_FEATURES_FOLDER_VERSION_COUNTERS | 79 PBAP_SUPPORTED_FEATURES_VCARD_SELECTING | 80 PBAP_SUPPORTED_FEATURES_ENHANCED_MISSED_CALLS | 81 PBAP_SUPPORTED_FEATURES_DEFAULT_CONTACT_IMAGE_FORMAT | 82 PBAP_SUPPORTED_FEATURES_X_BT_UCI_VCARD_PROPERTY | 83 PBAP_SUPPORTED_FEATURES_X_BT_UID_VCARD_PROPERTY | 84 PBAP_SUPPORTED_FEATURES_CONTACT_REFERENCING; 85 86 typedef enum { 87 PBAP_INIT = 0, 88 PBAP_W4_GOEP_CONNECTION, 89 PBAP_W2_SEND_CONNECT_REQUEST, 90 PBAP_W4_CONNECT_RESPONSE, 91 PBAP_W4_USER_AUTHENTICATION, 92 PBAP_W2_SEND_AUTHENTICATED_CONNECT, 93 PBAP_CONNECT_RESPONSE_RECEIVED, 94 PBAP_CONNECTED, 95 // 96 PBAP_W2_SEND_DISCONNECT_REQUEST, 97 PBAP_W4_DISCONNECT_RESPONSE, 98 // 99 PBAP_W2_PULL_PHONEBOOK, 100 PBAP_W4_PHONEBOOK, 101 PBAP_W2_SET_PATH_ROOT, 102 PBAP_W4_SET_PATH_ROOT_COMPLETE, 103 PBAP_W2_SET_PATH_ELEMENT, 104 PBAP_W4_SET_PATH_ELEMENT_COMPLETE, 105 PBAP_W2_GET_PHONEBOOK_SIZE, 106 PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE, 107 // - pull vacard liast 108 PBAP_W2_GET_CARD_LIST, 109 PBAP_W4_GET_CARD_LIST_COMPLETE, 110 // - pull vcard entry 111 PBAP_W2_GET_CARD_ENTRY, 112 PBAP_W4_GET_CARD_ENTRY_COMPLETE 113 114 } pbap_state_t; 115 116 typedef enum { 117 SRM_DISABLED, 118 SRM_W4_CONFIRM, 119 SRM_ENABLED_BUT_WAITING, 120 SRM_ENABLED 121 } srm_state_t; 122 123 typedef struct pbap_client { 124 pbap_state_t state; 125 uint16_t cid; 126 bd_addr_t bd_addr; 127 hci_con_handle_t con_handle; 128 uint8_t incoming; 129 uint16_t goep_cid; 130 btstack_packet_handler_t client_handler; 131 int request_number; 132 srm_state_t srm_state; 133 const char * current_folder; 134 const char * phone_number; 135 const char * phonebook_path; 136 const char * vcard_name; 137 uint16_t set_path_offset; 138 /* vcard selector / operator */ 139 uint32_t vcard_selector; 140 uint8_t vcard_selector_operator; 141 uint8_t vcard_selector_supported; 142 /* abort */ 143 uint8_t abort_operation; 144 /* authentication */ 145 uint8_t authentication_options; 146 uint16_t authentication_nonce[16]; 147 const char * authentication_password; 148 /* xml parser */ 149 yxml_t xml_parser; 150 uint8_t xml_buffer[50]; 151 /* flow control mode */ 152 uint8_t flow_control_enabled; 153 uint8_t flow_next_triggered; 154 } pbap_client_t; 155 156 static pbap_client_t _pbap_client; 157 static pbap_client_t * pbap_client = &_pbap_client; 158 159 static void pbap_client_emit_connected_event(pbap_client_t * context, uint8_t status){ 160 uint8_t event[15]; 161 int pos = 0; 162 event[pos++] = HCI_EVENT_PBAP_META; 163 pos++; // skip len 164 event[pos++] = PBAP_SUBEVENT_CONNECTION_OPENED; 165 little_endian_store_16(event,pos,context->cid); 166 pos+=2; 167 event[pos++] = status; 168 memcpy(&event[pos], context->bd_addr, 6); 169 pos += 6; 170 little_endian_store_16(event,pos,context->con_handle); 171 pos += 2; 172 event[pos++] = context->incoming; 173 event[1] = pos - 2; 174 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 175 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 176 } 177 178 static void pbap_client_emit_connection_closed_event(pbap_client_t * context){ 179 uint8_t event[5]; 180 int pos = 0; 181 event[pos++] = HCI_EVENT_PBAP_META; 182 pos++; // skip len 183 event[pos++] = PBAP_SUBEVENT_CONNECTION_CLOSED; 184 little_endian_store_16(event,pos,context->cid); 185 pos+=2; 186 event[1] = pos - 2; 187 if (pos != sizeof(event)) log_error("pbap_client_emit_connection_closed_event size %u", pos); 188 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 189 } 190 191 static void pbap_client_emit_operation_complete_event(pbap_client_t * context, uint8_t status){ 192 uint8_t event[6]; 193 int pos = 0; 194 event[pos++] = HCI_EVENT_PBAP_META; 195 pos++; // skip len 196 event[pos++] = PBAP_SUBEVENT_OPERATION_COMPLETED; 197 little_endian_store_16(event,pos,context->cid); 198 pos+=2; 199 event[pos++]= status; 200 event[1] = pos - 2; 201 if (pos != sizeof(event)) log_error("pbap_client_emit_can_send_now_event size %u", pos); 202 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 203 } 204 205 static void pbap_client_emit_phonebook_size_event(pbap_client_t * context, uint8_t status, uint16_t phonebook_size){ 206 uint8_t event[8]; 207 int pos = 0; 208 event[pos++] = HCI_EVENT_PBAP_META; 209 pos++; // skip len 210 event[pos++] = PBAP_SUBEVENT_PHONEBOOK_SIZE; 211 little_endian_store_16(event,pos,context->cid); 212 pos+=2; 213 event[pos++] = status; 214 little_endian_store_16(event,pos, phonebook_size); 215 pos+=2; 216 event[1] = pos - 2; 217 if (pos != sizeof(event)) log_error("pbap_client_emit_phonebook_size_event size %u", pos); 218 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 219 } 220 221 static void pbap_client_emit_authentication_event(pbap_client_t * context, uint8_t options){ 222 // split options 223 uint8_t user_id_required = (options & 1) ? 1 : 0; 224 uint8_t full_access = (options & 2) ? 1 : 0; 225 226 uint8_t event[7]; 227 int pos = 0; 228 event[pos++] = HCI_EVENT_PBAP_META; 229 pos++; // skip len 230 event[pos++] = PBAP_SUBEVENT_AUTHENTICATION_REQUEST; 231 little_endian_store_16(event,pos,context->cid); 232 pos+=2; 233 event[pos++] = user_id_required; 234 event[pos++] = full_access; 235 if (pos != sizeof(event)) log_error("pbap_client_emit_authentication_event size %u", pos); 236 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 237 } 238 239 static void pbap_client_emit_card_result_event(pbap_client_t * context, const char * name, const char * handle){ 240 uint8_t event[5 + PBAP_MAX_NAME_LEN + PBAP_MAX_HANDLE_LEN]; 241 int pos = 0; 242 event[pos++] = HCI_EVENT_PBAP_META; 243 pos++; // skip len 244 event[pos++] = PBAP_SUBEVENT_CARD_RESULT; 245 little_endian_store_16(event,pos,context->cid); 246 pos+=2; 247 int name_len = btstack_min(PBAP_MAX_NAME_LEN, strlen(name)); 248 event[pos++] = name_len; 249 memcpy(&event[pos], name, name_len); 250 pos += name_len; 251 int handle_len = btstack_min(PBAP_MAX_HANDLE_LEN, strlen(handle)); 252 event[pos++] = handle_len; 253 memcpy(&event[pos], handle, handle_len); 254 pos += handle_len; 255 event[1] = pos - 2; 256 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 257 } 258 259 static const uint8_t collon = (uint8_t) ':'; 260 261 static void pbap_handle_can_send_now(void){ 262 uint8_t path_element[20]; 263 uint16_t path_element_start; 264 uint16_t path_element_len; 265 uint8_t application_parameters[PBAP_MAX_PHONE_NUMBER_LEN + 10]; 266 uint8_t challenge_response[36]; 267 int i; 268 uint16_t phone_number_len; 269 int done; 270 271 MD5_CTX md5_ctx; 272 273 if (pbap_client->abort_operation){ 274 pbap_client->abort_operation = 0; 275 pbap_client->state = PBAP_CONNECTED; 276 goep_client_request_create_abort(pbap_client->goep_cid); 277 goep_client_execute(pbap_client->goep_cid); 278 return; 279 } 280 281 switch (pbap_client->state){ 282 case PBAP_W2_SEND_CONNECT_REQUEST: 283 goep_client_request_create_connect(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 284 goep_client_header_add_target(pbap_client->goep_cid, pbap_uuid, 18); 285 // Mandatory if the PSE advertises a PbapSupportedFeatures attribute in its SDP record, else excluded. 286 if (goep_client_get_pbap_supported_features(pbap_client->goep_cid) != PBAP_FEATURES_NOT_PRESENT){ 287 application_parameters[0] = PBAP_APPLICATION_PARAMETER_PBAP_SUPPORTED_FEATURES; 288 application_parameters[1] = 4; 289 big_endian_store_32(application_parameters, 2, pbap_supported_features); 290 goep_client_header_add_application_parameters(pbap_client->goep_cid, &application_parameters[0], 6); 291 } 292 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 293 goep_client_execute(pbap_client->goep_cid); 294 break; 295 case PBAP_W2_SEND_AUTHENTICATED_CONNECT: 296 goep_client_request_create_connect(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 297 goep_client_header_add_target(pbap_client->goep_cid, pbap_uuid, 16); 298 // setup authentication challenge response 299 i = 0; 300 challenge_response[i++] = 0; // Tag Digest 301 challenge_response[i++] = 16; // Len 302 // calculate md5 303 MD5_Init(&md5_ctx); 304 MD5_Update(&md5_ctx, pbap_client->authentication_nonce, 16); 305 MD5_Update(&md5_ctx, &collon, 1); 306 MD5_Update(&md5_ctx, pbap_client->authentication_password, strlen(pbap_client->authentication_password)); 307 MD5_Final(&challenge_response[i], &md5_ctx); 308 i += 16; 309 challenge_response[i++] = 2; // Tag Nonce 310 challenge_response[i++] = 16; // Len 311 memcpy(&challenge_response[i], pbap_client->authentication_nonce, 16); 312 i += 16; 313 goep_client_header_add_challenge_response(pbap_client->goep_cid, challenge_response, i); 314 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 315 goep_client_execute(pbap_client->goep_cid); 316 break; 317 case PBAP_W2_SEND_DISCONNECT_REQUEST: 318 goep_client_request_create_disconnect(pbap_client->goep_cid); 319 pbap_client->state = PBAP_W4_DISCONNECT_RESPONSE; 320 goep_client_execute(pbap_client->goep_cid); 321 return; 322 case PBAP_W2_PULL_PHONEBOOK: 323 case PBAP_W2_GET_PHONEBOOK_SIZE: 324 goep_client_request_create_get(pbap_client->goep_cid); 325 if (pbap_client->request_number == 0){ 326 if (!pbap_client->flow_control_enabled){ 327 goep_client_header_add_srm_enable(pbap_client->goep_cid); 328 pbap_client->srm_state = SRM_W4_CONFIRM; 329 } 330 goep_client_header_add_name(pbap_client->goep_cid, pbap_client->phonebook_path); 331 goep_client_header_add_type(pbap_client->goep_cid, pbap_phonebook_type); 332 i = 0; 333 if (pbap_client->vcard_selector_supported){ 334 // vCard Selector 335 if (pbap_client->vcard_selector){ 336 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR; 337 application_parameters[i++] = 8; 338 memset(&application_parameters[i], 0, 4); 339 i += 4; 340 big_endian_store_32(application_parameters, i, pbap_client->vcard_selector); 341 i += 4; 342 } 343 // vCard Selector Operator 344 if (pbap_client->vcard_selector_operator != PBAP_VCARD_SELECTOR_OPERATOR_OR){ 345 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR_OPERATOR; 346 application_parameters[i++] = 1; 347 application_parameters[i++] = pbap_client->vcard_selector_operator; 348 } 349 } 350 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 351 // Regular TLV wih 1-byte len 352 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_MAX_LIST_COUNT; 353 application_parameters[i++] = 2; 354 big_endian_store_16(application_parameters, 2, 0); 355 i += 2; 356 } 357 if (i){ 358 goep_client_header_add_application_parameters(pbap_client->goep_cid, application_parameters, i); 359 } 360 } 361 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 362 // state 363 pbap_client->state = PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE; 364 } else { 365 // state 366 pbap_client->state = PBAP_W4_PHONEBOOK; 367 } 368 // send packet 369 pbap_client->request_number++; 370 goep_client_execute(pbap_client->goep_cid); 371 break; 372 case PBAP_W2_GET_CARD_LIST: 373 goep_client_request_create_get(pbap_client->goep_cid); 374 if (pbap_client->request_number == 0){ 375 if (!pbap_client->flow_control_enabled){ 376 goep_client_header_add_srm_enable(pbap_client->goep_cid); 377 pbap_client->srm_state = SRM_W4_CONFIRM; 378 } 379 goep_client_header_add_name(pbap_client->goep_cid, pbap_client->phonebook_path); 380 goep_client_header_add_type(pbap_client->goep_cid, pbap_vcard_listing_type); 381 i = 0; 382 if (pbap_client->vcard_selector_supported){ 383 // vCard Selector 384 if (pbap_client->vcard_selector){ 385 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR; 386 application_parameters[i++] = 8; 387 memset(&application_parameters[i], 0, 4); 388 i += 4; 389 big_endian_store_32(application_parameters, i, pbap_client->vcard_selector); 390 i += 4; 391 } 392 // vCard Selector Operator 393 if (pbap_client->vcard_selector_operator != PBAP_VCARD_SELECTOR_OPERATOR_OR){ 394 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR_OPERATOR; 395 application_parameters[i++] = 1; 396 application_parameters[i++] = pbap_client->vcard_selector_operator; 397 } 398 } 399 if (pbap_client->phone_number){ 400 // Search by phpone number 401 phone_number_len = btstack_min(PBAP_MAX_PHONE_NUMBER_LEN, strlen(pbap_client->phone_number)); 402 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_VALUE; 403 application_parameters[i++] = phone_number_len; 404 memcpy(&application_parameters[i], pbap_client->phone_number, phone_number_len); 405 i += phone_number_len; 406 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_PROPERTY; 407 application_parameters[i++] = 1; 408 application_parameters[i++] = 0x01; // Number 409 } 410 if (i){ 411 goep_client_header_add_application_parameters(pbap_client->goep_cid, &application_parameters[0], i); 412 } 413 } 414 // send packet 415 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 416 pbap_client->request_number++; 417 goep_client_execute(pbap_client->goep_cid); 418 break; 419 case PBAP_W2_GET_CARD_ENTRY: 420 goep_client_request_create_get(pbap_client->goep_cid); 421 if (pbap_client->request_number == 0){ 422 if (!pbap_client->flow_control_enabled){ 423 goep_client_header_add_srm_enable(pbap_client->goep_cid); 424 pbap_client->srm_state = SRM_W4_CONFIRM; 425 } 426 goep_client_header_add_name(pbap_client->goep_cid, pbap_client->vcard_name); 427 goep_client_header_add_type(pbap_client->goep_cid, pbap_vcard_entry_type); 428 i = 0; 429 if (i){ 430 // TODO: support property selector 431 // TODO: support format 432 goep_client_header_add_application_parameters(pbap_client->goep_cid, &application_parameters[0], i); 433 } 434 pbap_client->state = PBAP_W4_GET_CARD_ENTRY_COMPLETE; 435 } 436 // send packet 437 pbap_client->request_number++; 438 goep_client_execute(pbap_client->goep_cid); 439 break; 440 case PBAP_W2_SET_PATH_ROOT: 441 goep_client_request_create_set_path(pbap_client->goep_cid, 1 << 1); // Don’t create directory 442 goep_client_header_add_name(pbap_client->goep_cid, ""); 443 // state 444 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 445 // send packet 446 goep_client_execute(pbap_client->goep_cid); 447 break; 448 case PBAP_W2_SET_PATH_ELEMENT: 449 // find '/' or '\0' 450 path_element_start = pbap_client->set_path_offset; 451 while ((pbap_client->current_folder[pbap_client->set_path_offset] != '\0') && 452 (pbap_client->current_folder[pbap_client->set_path_offset] != '/')){ 453 pbap_client->set_path_offset++; 454 } 455 path_element_len = pbap_client->set_path_offset-path_element_start; 456 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 457 path_element[path_element_len] = 0; 458 459 // skip / 460 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 461 pbap_client->set_path_offset++; 462 } 463 464 // done? 465 done = pbap_client->current_folder[pbap_client->set_path_offset] == '\0'; 466 467 // status 468 log_info("Path element '%s', done %u", path_element, done); 469 470 goep_client_request_create_set_path(pbap_client->goep_cid, 1 << 1); // Don’t create directory 471 goep_client_header_add_name(pbap_client->goep_cid, (const char *) path_element); // next element 472 // state 473 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 474 // send packet 475 goep_client_execute(pbap_client->goep_cid); 476 break; 477 default: 478 break; 479 } 480 } 481 482 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 483 // printf("Challenge: "); 484 // printf_hexdump(challenge_data, challenge_len); 485 int i; 486 // uint8_t charset_code = 0; 487 for (i=0 ; i<challenge_len ; ){ 488 int tag = challenge_data[i]; 489 int len = challenge_data[i + 1]; 490 i += 2; 491 switch (tag) { 492 case 0: 493 if (len != 0x10) { 494 log_error("Invalid OBEX digest len %u", len); 495 return; 496 } 497 memcpy(context->authentication_nonce, &challenge_data[i], 16); 498 // printf("Nonce: "); 499 // printf_hexdump(context->authentication_nonce, 16); 500 break; 501 case 1: 502 context->authentication_options = challenge_data[i]; 503 // printf("Options %u\n", context->authentication_options); 504 break; 505 case 2: 506 // TODO: handle charset 507 // charset_code = challenge_data[i]; 508 break; 509 } 510 i += len; 511 } 512 } 513 514 static void pbap_process_srm_headers(pbap_client_t * context, uint8_t *packet, uint16_t size){ 515 516 if (packet[0] != OBEX_RESP_CONTINUE) return; 517 518 // get SRM and SRMP Headers 519 int srm_value = OBEX_SRM_DISABLE; 520 int srmp_value = OBEX_SRMP_NEXT; 521 obex_iterator_t it; 522 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)){ 523 uint8_t hi = obex_iterator_get_hi(&it); 524 uint16_t data_len = obex_iterator_get_data_len(&it); 525 const uint8_t * data = obex_iterator_get_data(&it); 526 switch (hi){ 527 case OBEX_HEADER_SINGLE_RESPONSE_MODE: 528 if (data_len != 1) break; 529 srm_value = *data; 530 break; 531 case OBEX_HEADER_SINGLE_RESPONSE_MODE_PARAMETER: 532 if (data_len != 1) break; 533 srmp_value = *data; 534 break; 535 default: 536 break; 537 } 538 } 539 540 // Update SRM state based on SRM haders 541 switch (context->srm_state){ 542 case SRM_W4_CONFIRM: 543 switch (srm_value){ 544 case OBEX_SRM_ENABLE: 545 switch (srmp_value){ 546 case OBEX_SRMP_WAIT: 547 context->srm_state = SRM_ENABLED_BUT_WAITING; 548 break; 549 default: 550 context->srm_state = SRM_ENABLED; 551 break; 552 } 553 break; 554 default: 555 context->srm_state = SRM_DISABLED; 556 break; 557 } 558 break; 559 case SRM_ENABLED_BUT_WAITING: 560 switch (srmp_value){ 561 case OBEX_SRMP_WAIT: 562 context->srm_state = SRM_ENABLED_BUT_WAITING; 563 break; 564 default: 565 context->srm_state = SRM_ENABLED; 566 break; 567 } 568 break; 569 default: 570 break; 571 } 572 log_info("SRM state %u", context->srm_state); 573 } 574 575 static void pbap_client_process_vcard_listing(uint8_t *packet, uint16_t size){ 576 obex_iterator_t it; 577 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)){ 578 uint8_t hi = obex_iterator_get_hi(&it); 579 if ((hi == OBEX_HEADER_END_OF_BODY) || 580 (hi == OBEX_HEADER_BODY)){ 581 uint16_t data_len = obex_iterator_get_data_len(&it); 582 const uint8_t * data = obex_iterator_get_data(&it); 583 // now try parsing it 584 yxml_init(&pbap_client->xml_parser, pbap_client->xml_buffer, sizeof(pbap_client->xml_buffer)); 585 int card_found = 0; 586 int name_found = 0; 587 int handle_found = 0; 588 char name[PBAP_MAX_NAME_LEN]; 589 char handle[PBAP_MAX_HANDLE_LEN]; 590 while (data_len--){ 591 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 592 switch (r){ 593 case YXML_ELEMSTART: 594 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 595 break; 596 case YXML_ELEMEND: 597 if (card_found){ 598 pbap_client_emit_card_result_event(pbap_client, name, handle); 599 } 600 card_found = 0; 601 break; 602 case YXML_ATTRSTART: 603 if (!card_found) break; 604 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 605 name_found = 1; 606 name[0] = 0; 607 break; 608 } 609 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 610 handle_found = 1; 611 handle[0] = 0; 612 break; 613 } 614 break; 615 case YXML_ATTRVAL: 616 if (name_found) { 617 // "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." 618 if ((strlen(name) + 4 + 1) >= sizeof(name)) break; 619 strcat(name, pbap_client->xml_parser.data); 620 break; 621 } 622 if (handle_found) { 623 // "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." 624 if ((strlen(handle) + 4 + 1) >= sizeof(handle)) break; 625 strcat(handle, pbap_client->xml_parser.data); 626 break; 627 } 628 break; 629 case YXML_ATTREND: 630 name_found = 0; 631 handle_found = 0; 632 break; 633 default: 634 break; 635 } 636 } 637 } 638 } 639 } 640 641 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 642 643 UNUSED(channel); // ok: there is no channel 644 UNUSED(size); // ok: handling own geop events 645 646 obex_iterator_t it; 647 uint8_t status; 648 int wait_for_user = 0; 649 switch (packet_type){ 650 case HCI_EVENT_PACKET: 651 switch (hci_event_packet_get_type(packet)) { 652 case HCI_EVENT_GOEP_META: 653 switch (hci_event_goep_meta_get_subevent_code(packet)){ 654 case GOEP_SUBEVENT_CONNECTION_OPENED: 655 status = goep_subevent_connection_opened_get_status(packet); 656 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 657 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 658 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 659 if (status){ 660 log_info("pbap: connection failed %u", status); 661 pbap_client->state = PBAP_INIT; 662 pbap_client_emit_connected_event(pbap_client, status); 663 } else { 664 log_info("pbap: connection established"); 665 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 666 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 667 goep_client_request_can_send_now(pbap_client->goep_cid); 668 } 669 break; 670 case GOEP_SUBEVENT_CONNECTION_CLOSED: 671 if (pbap_client->state != PBAP_CONNECTED){ 672 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 673 } 674 pbap_client->state = PBAP_INIT; 675 pbap_client_emit_connection_closed_event(pbap_client); 676 break; 677 case GOEP_SUBEVENT_CAN_SEND_NOW: 678 pbap_handle_can_send_now(); 679 break; 680 } 681 break; 682 default: 683 break; 684 } 685 break; 686 case GOEP_DATA_PACKET: 687 // TODO: handle chunked data 688 // obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 689 switch (pbap_client->state){ 690 case PBAP_W4_CONNECT_RESPONSE: 691 switch (packet[0]){ 692 case OBEX_RESP_SUCCESS: 693 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)){ 694 uint8_t hi = obex_iterator_get_hi(&it); 695 if (hi == OBEX_HEADER_CONNECTION_ID){ 696 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 697 } 698 } 699 pbap_client->state = PBAP_CONNECTED; 700 pbap_client->vcard_selector_supported = pbap_supported_features & goep_client_get_pbap_supported_features(pbap_client->goep_cid) & PBAP_SUPPORTED_FEATURES_VCARD_SELECTING; 701 pbap_client_emit_connected_event(pbap_client, 0); 702 break; 703 case OBEX_RESP_UNAUTHORIZED: 704 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)){ 705 uint8_t hi = obex_iterator_get_hi(&it); 706 if (hi == OBEX_HEADER_AUTHENTICATION_CHALLENGE){ 707 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 708 } 709 } 710 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 711 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 712 break; 713 default: 714 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 715 pbap_client->state = PBAP_INIT; 716 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 717 break; 718 } 719 break; 720 case PBAP_W4_DISCONNECT_RESPONSE: 721 goep_client_disconnect(pbap_client->goep_cid); 722 break; 723 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 724 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 725 if (packet[0] == OBEX_RESP_SUCCESS){ 726 // more path? 727 if (pbap_client->current_folder[pbap_client->set_path_offset]){ 728 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 729 goep_client_request_can_send_now(pbap_client->goep_cid); 730 } else { 731 pbap_client->current_folder = NULL; 732 pbap_client->state = PBAP_CONNECTED; 733 pbap_client_emit_operation_complete_event(pbap_client, 0); 734 } 735 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 736 pbap_client->state = PBAP_CONNECTED; 737 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 738 } else { 739 pbap_client->state = PBAP_CONNECTED; 740 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 741 } 742 break; 743 case PBAP_W4_PHONEBOOK: 744 pbap_client->flow_next_triggered = 0; 745 wait_for_user = 0; 746 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)){ 747 uint8_t hi = obex_iterator_get_hi(&it); 748 uint16_t data_len = obex_iterator_get_data_len(&it); 749 const uint8_t * data = obex_iterator_get_data(&it); 750 switch (hi){ 751 case OBEX_HEADER_BODY: 752 case OBEX_HEADER_END_OF_BODY: 753 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 754 wait_for_user++; 755 if (wait_for_user > 1){ 756 log_error("wait_for_user %u", wait_for_user); 757 } 758 break; 759 default: 760 break; 761 } 762 } 763 switch(packet[0]){ 764 case OBEX_RESP_CONTINUE: 765 pbap_process_srm_headers(pbap_client, packet, size); 766 if (pbap_client->srm_state == SRM_ENABLED) break; 767 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 768 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 769 goep_client_request_can_send_now(pbap_client->goep_cid); 770 } 771 break; 772 case OBEX_RESP_SUCCESS: 773 pbap_client->state = PBAP_CONNECTED; 774 pbap_client_emit_operation_complete_event(pbap_client, 0); 775 break; 776 default: 777 log_info("unexpected response 0x%02x", packet[0]); 778 pbap_client->state = PBAP_CONNECTED; 779 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 780 break; 781 } 782 break; 783 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 784 pbap_client->state = PBAP_CONNECTED; 785 if (packet[0] == OBEX_RESP_SUCCESS){ 786 int have_size = 0; 787 uint16_t phonebook_size; 788 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)){ 789 uint8_t hi = obex_iterator_get_hi(&it); 790 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 791 uint16_t data_len = obex_iterator_get_data_len(&it); 792 const uint8_t * data = obex_iterator_get_data(&it); 793 // iterate over application headers (TLV with 1 bytes len) 794 unsigned int i = 0; 795 while (i<data_len){ 796 uint8_t tag = data[i++]; 797 uint8_t len = data[i++]; 798 if ((tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE) && (len == 2)){ 799 have_size = 1; 800 phonebook_size = big_endian_read_16(data, i); 801 } 802 i+=len; 803 } 804 } 805 } 806 if (have_size){ 807 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 808 break; 809 } 810 } 811 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 812 break; 813 case PBAP_W4_GET_CARD_LIST_COMPLETE: 814 switch (packet[0]){ 815 case OBEX_RESP_CONTINUE: 816 // process data 817 pbap_client_process_vcard_listing(packet, size); 818 // handle continue 819 pbap_process_srm_headers(pbap_client, packet, size); 820 if (pbap_client->srm_state == SRM_ENABLED) break; 821 pbap_client->state = PBAP_W2_GET_CARD_LIST; 822 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 823 goep_client_request_can_send_now(pbap_client->goep_cid); 824 } 825 break; 826 case OBEX_RESP_SUCCESS: 827 // process data 828 pbap_client_process_vcard_listing(packet, size); 829 // done 830 pbap_client->state = PBAP_CONNECTED; 831 pbap_client_emit_operation_complete_event(pbap_client, 0); 832 break; 833 case OBEX_RESP_NOT_ACCEPTABLE: 834 pbap_client->state = PBAP_CONNECTED; 835 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 836 break; 837 default: 838 log_info("unexpected response 0x%02x", packet[0]); 839 pbap_client->state = PBAP_CONNECTED; 840 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 841 break; 842 } 843 break; 844 case PBAP_W4_GET_CARD_ENTRY_COMPLETE: 845 switch (packet[0]){ 846 case OBEX_RESP_CONTINUE: 847 pbap_process_srm_headers(pbap_client, packet, size); 848 if (pbap_client->srm_state == SRM_ENABLED) break; 849 pbap_client->state = PBAP_W2_GET_CARD_ENTRY; 850 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 851 goep_client_request_can_send_now(pbap_client->goep_cid); 852 } 853 break; 854 case OBEX_RESP_SUCCESS: 855 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)){ 856 uint8_t hi = obex_iterator_get_hi(&it); 857 if ((hi == OBEX_HEADER_END_OF_BODY) || 858 (hi == OBEX_HEADER_BODY)){ 859 // uint16_t data_len = obex_iterator_get_data_len(&it); 860 // const uint8_t * data = obex_iterator_get_data(&it); 861 // now try parsing it 862 } 863 } 864 pbap_client->state = PBAP_CONNECTED; 865 pbap_client_emit_operation_complete_event(pbap_client, 0); 866 break; 867 case OBEX_RESP_NOT_ACCEPTABLE: 868 pbap_client->state = PBAP_CONNECTED; 869 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 870 break; 871 default: 872 log_info("unexpected response 0x%02x", packet[0]); 873 pbap_client->state = PBAP_CONNECTED; 874 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 875 break; 876 } 877 break; 878 default: 879 break; 880 } 881 break; 882 default: 883 break; 884 } 885 } 886 887 void pbap_client_init(void){ 888 memset(pbap_client, 0, sizeof(pbap_client_t)); 889 pbap_client->state = PBAP_INIT; 890 pbap_client->cid = 1; 891 } 892 893 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 894 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 895 896 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 897 pbap_client->client_handler = handler; 898 pbap_client->vcard_selector = 0; 899 pbap_client->vcard_selector_operator = PBAP_VCARD_SELECTOR_OPERATOR_OR; 900 901 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 902 *out_cid = pbap_client->cid; 903 if (err) return err; 904 return 0; 905 } 906 907 uint8_t pbap_disconnect(uint16_t pbap_cid){ 908 UNUSED(pbap_cid); 909 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 910 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 911 goep_client_request_can_send_now(pbap_client->goep_cid); 912 return 0; 913 } 914 915 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid, const char * path){ 916 UNUSED(pbap_cid); 917 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 918 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 919 pbap_client->phonebook_path = path; 920 pbap_client->request_number = 0; 921 goep_client_request_can_send_now(pbap_client->goep_cid); 922 return 0; 923 } 924 925 uint8_t pbap_pull_phonebook(uint16_t pbap_cid, const char * path){ 926 UNUSED(pbap_cid); 927 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 928 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 929 pbap_client->phonebook_path = path; 930 pbap_client->request_number = 0; 931 goep_client_request_can_send_now(pbap_client->goep_cid); 932 return 0; 933 } 934 935 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 936 UNUSED(pbap_cid); 937 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 938 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 939 pbap_client->current_folder = path; 940 pbap_client->set_path_offset = 0; 941 goep_client_request_can_send_now(pbap_client->goep_cid); 942 return 0; 943 } 944 945 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 946 UNUSED(pbap_cid); 947 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 948 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 949 pbap_client->authentication_password = password; 950 goep_client_request_can_send_now(pbap_client->goep_cid); 951 return 0; 952 } 953 954 uint8_t pbap_pull_vcard_listing(uint16_t pbap_cid, const char * path){ 955 UNUSED(pbap_cid); 956 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 957 pbap_client->state = PBAP_W2_GET_CARD_LIST; 958 pbap_client->phonebook_path = path; 959 pbap_client->phone_number = NULL; 960 pbap_client->request_number = 0; 961 goep_client_request_can_send_now(pbap_client->goep_cid); 962 return 0; 963 } 964 965 uint8_t pbap_pull_vcard_entry(uint16_t pbap_cid, const char * path){ 966 UNUSED(pbap_cid); 967 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 968 pbap_client->state = PBAP_W2_GET_CARD_ENTRY; 969 // pbap_client->phonebook_path = NULL; 970 // pbap_client->phone_number = NULL; 971 pbap_client->vcard_name = path; 972 pbap_client->request_number = 0; 973 goep_client_request_can_send_now(pbap_client->goep_cid); 974 return 0; 975 } 976 977 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 978 UNUSED(pbap_cid); 979 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 980 pbap_client->state = PBAP_W2_GET_CARD_LIST; 981 pbap_client->phonebook_path = pbap_vcard_listing_name; 982 pbap_client->phone_number = phone_number; 983 pbap_client->request_number = 0; 984 goep_client_request_can_send_now(pbap_client->goep_cid); 985 return 0; 986 } 987 988 uint8_t pbap_abort(uint16_t pbap_cid){ 989 UNUSED(pbap_cid); 990 log_info("abort current operation, state 0x%02x", pbap_client->state); 991 pbap_client->abort_operation = 1; 992 goep_client_request_can_send_now(pbap_client->goep_cid); 993 return 0; 994 } 995 996 uint8_t pbap_next_packet(uint16_t pbap_cid){ 997 // log_info("pbap_next_packet, state %x", pbap_client->state); 998 UNUSED(pbap_cid); 999 if (!pbap_client->flow_control_enabled) return 0; 1000 switch (pbap_client->state){ 1001 case PBAP_W2_PULL_PHONEBOOK: 1002 goep_client_request_can_send_now(pbap_client->goep_cid); 1003 break; 1004 case PBAP_W4_PHONEBOOK: 1005 pbap_client->flow_next_triggered = 1; 1006 break; 1007 default: 1008 break; 1009 } 1010 return 0; 1011 } 1012 1013 uint8_t pbap_set_flow_control_mode(uint16_t pbap_cid, int enable){ 1014 UNUSED(pbap_cid); 1015 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 1016 pbap_client->flow_control_enabled = enable; 1017 return 0; 1018 } 1019 1020 uint8_t pbap_set_vcard_selector(uint16_t pbap_cid, uint32_t vcard_selector){ 1021 UNUSED(pbap_cid); 1022 pbap_client->vcard_selector = vcard_selector; 1023 return 0; 1024 } 1025 1026 uint8_t pbap_set_vcard_selector_operator(uint16_t pbap_cid, int vcard_selector_operator){ 1027 UNUSED(pbap_cid); 1028 pbap_client->vcard_selector_operator = vcard_selector_operator; 1029 return 0; 1030 } 1031