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