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_phonebook_name = "pb.vcf"; 70 71 const char * pbap_vcard_listing_type = "x-bt/vcard-listing"; 72 const char * pbap_vcard_listing_name = "pb"; 73 74 // default 75 static uint32_t pbap_supported_features = 0x0000; 76 77 typedef enum { 78 PBAP_INIT = 0, 79 PBAP_W4_GOEP_CONNECTION, 80 PBAP_W2_SEND_CONNECT_REQUEST, 81 PBAP_W4_CONNECT_RESPONSE, 82 PBAP_W4_USER_AUTHENTICATION, 83 PBAP_W2_SEND_AUTHENTICATED_CONNECT, 84 PBAP_CONNECT_RESPONSE_RECEIVED, 85 PBAP_CONNECTED, 86 // 87 PBAP_W2_SEND_DISCONNECT_REQUEST, 88 PBAP_W4_DISCONNECT_RESPONSE, 89 // 90 PBAP_W2_PULL_PHONEBOOK, 91 PBAP_W4_PHONEBOOK, 92 PBAP_W2_SET_PATH_ROOT, 93 PBAP_W4_SET_PATH_ROOT_COMPLETE, 94 PBAP_W2_SET_PATH_ELEMENT, 95 PBAP_W4_SET_PATH_ELEMENT_COMPLETE, 96 PBAP_W2_GET_PHONEBOOK_SIZE, 97 PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE, 98 // 99 PBAP_W2_GET_CARD_LIST, 100 PBAP_W4_GET_CARD_LIST_COMPLETE, 101 102 } pbap_state_t; 103 104 typedef struct pbap_client { 105 pbap_state_t state; 106 uint16_t cid; 107 bd_addr_t bd_addr; 108 hci_con_handle_t con_handle; 109 uint8_t incoming; 110 uint16_t goep_cid; 111 btstack_packet_handler_t client_handler; 112 int request_number; 113 int single_response_mode_active; 114 const char * current_folder; 115 const char * phone_number; 116 uint16_t set_path_offset; 117 uint8_t authentication_options; 118 uint16_t authentication_nonce[16]; 119 const char * authentication_password; 120 yxml_t xml_parser; 121 uint8_t xml_buffer[50]; 122 } pbap_client_t; 123 124 static pbap_client_t _pbap_client; 125 static pbap_client_t * pbap_client = &_pbap_client; 126 127 static void pbap_client_emit_connected_event(pbap_client_t * context, uint8_t status){ 128 uint8_t event[15]; 129 int pos = 0; 130 event[pos++] = HCI_EVENT_PBAP_META; 131 pos++; // skip len 132 event[pos++] = PBAP_SUBEVENT_CONNECTION_OPENED; 133 little_endian_store_16(event,pos,context->cid); 134 pos+=2; 135 event[pos++] = status; 136 memcpy(&event[pos], context->bd_addr, 6); 137 pos += 6; 138 little_endian_store_16(event,pos,context->con_handle); 139 pos += 2; 140 event[pos++] = context->incoming; 141 event[1] = pos - 2; 142 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 143 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 144 } 145 146 static void pbap_client_emit_connection_closed_event(pbap_client_t * context){ 147 uint8_t event[5]; 148 int pos = 0; 149 event[pos++] = HCI_EVENT_PBAP_META; 150 pos++; // skip len 151 event[pos++] = PBAP_SUBEVENT_CONNECTION_CLOSED; 152 little_endian_store_16(event,pos,context->cid); 153 pos+=2; 154 event[1] = pos - 2; 155 if (pos != sizeof(event)) log_error("pbap_client_emit_connection_closed_event size %u", pos); 156 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 157 } 158 159 static void pbap_client_emit_operation_complete_event(pbap_client_t * context, uint8_t status){ 160 uint8_t event[6]; 161 int pos = 0; 162 event[pos++] = HCI_EVENT_PBAP_META; 163 pos++; // skip len 164 event[pos++] = PBAP_SUBEVENT_OPERATION_COMPLETED; 165 little_endian_store_16(event,pos,context->cid); 166 pos+=2; 167 event[pos++]= status; 168 event[1] = pos - 2; 169 if (pos != sizeof(event)) log_error("pbap_client_emit_can_send_now_event size %u", pos); 170 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 171 } 172 173 static void pbap_client_emit_phonebook_size_event(pbap_client_t * context, uint8_t status, uint16_t phonebook_size){ 174 uint8_t event[8]; 175 int pos = 0; 176 event[pos++] = HCI_EVENT_PBAP_META; 177 pos++; // skip len 178 event[pos++] = PBAP_SUBEVENT_PHONEBOOK_SIZE; 179 little_endian_store_16(event,pos,context->cid); 180 pos+=2; 181 event[pos++] = status; 182 little_endian_store_16(event,pos, phonebook_size); 183 pos+=2; 184 event[1] = pos - 2; 185 if (pos != sizeof(event)) log_error("pbap_client_emit_phonebook_size_event size %u", pos); 186 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 187 } 188 189 static void pbap_client_emit_authentication_event(pbap_client_t * context, uint8_t options){ 190 // split options 191 uint8_t user_id_required = options & 1 ? 1 : 0; 192 uint8_t full_access = options & 2 ? 1 : 0; 193 194 uint8_t event[7]; 195 int pos = 0; 196 event[pos++] = HCI_EVENT_PBAP_META; 197 pos++; // skip len 198 event[pos++] = PBAP_SUBEVENT_AUTHENTICATION_REQUEST; 199 little_endian_store_16(event,pos,context->cid); 200 pos+=2; 201 event[pos++] = user_id_required; 202 event[pos++] = full_access; 203 if (pos != sizeof(event)) log_error("pbap_client_emit_authentication_event size %u", pos); 204 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 205 } 206 207 static void pbap_client_emit_card_result_event(pbap_client_t * context, const char * name, const char * handle){ 208 uint8_t event[5 + PBAP_MAX_NAME_LEN + PBAP_MAX_HANDLE_LEN]; 209 int pos = 0; 210 event[pos++] = HCI_EVENT_PBAP_META; 211 pos++; // skip len 212 event[pos++] = PBAP_SUBEVENT_CARD_RESULT; 213 little_endian_store_16(event,pos,context->cid); 214 pos+=2; 215 int name_len = btstack_min(PBAP_MAX_NAME_LEN, strlen(name)); 216 event[pos++] = name_len; 217 memcpy(&event[pos], name, name_len); 218 pos += name_len; 219 int handle_len = btstack_min(PBAP_MAX_HANDLE_LEN, strlen(handle)); 220 event[pos++] = handle_len; 221 memcpy(&event[pos], handle, handle_len); 222 pos += handle_len; 223 event[1] = pos - 2; 224 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 225 } 226 227 static const uint8_t collon = (uint8_t) ':'; 228 229 static void pbap_handle_can_send_now(void){ 230 uint8_t path_element[20]; 231 uint16_t path_element_start; 232 uint16_t path_element_len; 233 uint8_t application_parameters[PBAP_MAX_PHONE_NUMBER_LEN + 10]; 234 uint8_t challenge_response[36]; 235 int i; 236 uint16_t phone_number_len; 237 238 MD5_CTX md5_ctx; 239 240 switch (pbap_client->state){ 241 case PBAP_W2_SEND_CONNECT_REQUEST: 242 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 243 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 244 // Mandatory if the PSE advertises a PbapSupportedFeatures attribute in its SDP record, else excluded. 245 if (goep_client_get_pbap_supported_features(pbap_client->goep_cid) != PBAP_FEATURES_NOT_PRESENT){ 246 application_parameters[0] = PBAP_APPLICATION_PARAMETER_PBAP_SUPPORTED_FEATURES; 247 application_parameters[1] = 4; 248 big_endian_store_32(application_parameters, 2, pbap_supported_features); 249 goep_client_add_header_application_parameters(pbap_client->goep_cid, 6, &application_parameters[0]); 250 } 251 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 252 goep_client_execute(pbap_client->goep_cid); 253 break; 254 case PBAP_W2_SEND_AUTHENTICATED_CONNECT: 255 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 256 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 257 // setup authentication challenge response 258 i = 0; 259 challenge_response[i++] = 0; // Tag Digest 260 challenge_response[i++] = 16; // Len 261 // calculate md5 262 MD5_Init(&md5_ctx); 263 MD5_Update(&md5_ctx, pbap_client->authentication_nonce, 16); 264 MD5_Update(&md5_ctx, &collon, 1); 265 MD5_Update(&md5_ctx, pbap_client->authentication_password, strlen(pbap_client->authentication_password)); 266 MD5_Final(&challenge_response[i], &md5_ctx); 267 i += 16; 268 challenge_response[i++] = 2; // Tag Nonce 269 challenge_response[i++] = 16; // Len 270 memcpy(&challenge_response[i], pbap_client->authentication_nonce, 16); 271 i += 16; 272 goep_client_add_header_challenge_response(pbap_client->goep_cid, i, challenge_response); 273 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 274 goep_client_execute(pbap_client->goep_cid); 275 break; 276 case PBAP_W2_SEND_DISCONNECT_REQUEST: 277 goep_client_create_disconnect_request(pbap_client->goep_cid); 278 pbap_client->state = PBAP_W4_DISCONNECT_RESPONSE; 279 goep_client_execute(pbap_client->goep_cid); 280 return; 281 case PBAP_W2_PULL_PHONEBOOK: 282 case PBAP_W2_GET_PHONEBOOK_SIZE: 283 goep_client_create_get_request(pbap_client->goep_cid); 284 if (pbap_client->request_number == 0){ 285 goep_client_add_header_srm_enable(pbap_client->goep_cid); 286 goep_client_add_header_type(pbap_client->goep_cid, pbap_phonebook_type); 287 goep_client_add_header_name(pbap_client->goep_cid, pbap_phonebook_name); 288 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 289 // Regular TLV wih 1-byte len 290 application_parameters[0] = PBAP_APPLICATION_PARAMETER_MAX_LIST_COUNT; 291 application_parameters[1] = 2; 292 big_endian_store_16(application_parameters, 2, 0); 293 goep_client_add_header_application_parameters(pbap_client->goep_cid, 4, &application_parameters[0]); 294 } else { 295 // 296 } 297 } 298 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 299 // state 300 pbap_client->state = PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE; 301 } else { 302 // state 303 pbap_client->state = PBAP_W4_PHONEBOOK; 304 } 305 // send packet 306 pbap_client->request_number++; 307 goep_client_execute(pbap_client->goep_cid); 308 break; 309 case PBAP_W2_GET_CARD_LIST: 310 goep_client_create_get_request(pbap_client->goep_cid); 311 goep_client_add_header_type(pbap_client->goep_cid, pbap_vcard_listing_type); 312 goep_client_add_header_name(pbap_client->goep_cid, pbap_vcard_listing_name); 313 // Regular TLV wih 1-byte len 314 i = 0; 315 phone_number_len = btstack_min(PBAP_MAX_PHONE_NUMBER_LEN, strlen(pbap_client->phone_number)); 316 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_VALUE; 317 application_parameters[i++] = phone_number_len; 318 memcpy(&application_parameters[i], pbap_client->phone_number, phone_number_len); 319 i += phone_number_len; 320 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_PROPERTY; 321 application_parameters[i++] = 1; 322 application_parameters[i++] = 0x01; // Number 323 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 324 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 325 // send packet 326 goep_client_execute(pbap_client->goep_cid); 327 break; 328 case PBAP_W2_SET_PATH_ROOT: 329 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 330 // On Android 4.2 Cyanogenmod, using "" as path fails 331 // goep_client_add_header_name(pbap_client->goep_cid, ""); // empty == / 332 // state 333 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 334 // send packet 335 goep_client_execute(pbap_client->goep_cid); 336 break; 337 case PBAP_W2_SET_PATH_ELEMENT: 338 // find '/' or '\0' 339 path_element_start = pbap_client->set_path_offset; 340 while (pbap_client->current_folder[pbap_client->set_path_offset] != '\0' && 341 pbap_client->current_folder[pbap_client->set_path_offset] != '/'){ 342 pbap_client->set_path_offset++; 343 } 344 // skip / 345 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 346 pbap_client->set_path_offset++; 347 } 348 path_element_len = pbap_client->set_path_offset-path_element_start; 349 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 350 path_element[path_element_len] = 0; 351 352 // detect end of path (after setting path_element) 353 if (pbap_client->current_folder[pbap_client->set_path_offset] == '\0'){ 354 pbap_client->current_folder = NULL; 355 } 356 357 log_info("Path element '%s', done %u", path_element, pbap_client->current_folder == NULL); 358 359 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 360 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 361 // state 362 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 363 // send packet 364 goep_client_execute(pbap_client->goep_cid); 365 break; 366 default: 367 break; 368 } 369 } 370 371 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 372 // printf("Challenge: "); 373 // printf_hexdump(challenge_data, challenge_len); 374 int i; 375 // uint8_t charset_code = 0; 376 for (i=0 ; i<challenge_len ; ){ 377 int tag = challenge_data[i]; 378 int len = challenge_data[i + 1]; 379 i += 2; 380 switch (tag) { 381 case 0: 382 if (len != 0x10) { 383 log_error("Invalid OBEX digest len %u", len); 384 return; 385 } 386 memcpy(context->authentication_nonce, &challenge_data[i], 16); 387 // printf("Nonce: "); 388 // printf_hexdump(context->authentication_nonce, 16); 389 break; 390 case 1: 391 context->authentication_options = challenge_data[i]; 392 // printf("Options %u\n", context->authentication_options); 393 break; 394 case 2: 395 // TODO: handle charset 396 // charset_code = challenge_data[i]; 397 break; 398 } 399 i += len; 400 } 401 } 402 403 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 404 405 UNUSED(channel); // ok: there is no channel 406 UNUSED(size); // ok: handling own geop events 407 408 obex_iterator_t it; 409 uint8_t status; 410 switch (packet_type){ 411 case HCI_EVENT_PACKET: 412 switch (hci_event_packet_get_type(packet)) { 413 case HCI_EVENT_GOEP_META: 414 switch (hci_event_goep_meta_get_subevent_code(packet)){ 415 case GOEP_SUBEVENT_CONNECTION_OPENED: 416 status = goep_subevent_connection_opened_get_status(packet); 417 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 418 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 419 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 420 if (status){ 421 log_info("pbap: connection failed %u", status); 422 pbap_client->state = PBAP_INIT; 423 pbap_client_emit_connected_event(pbap_client, status); 424 } else { 425 log_info("pbap: connection established"); 426 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 427 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 428 goep_client_request_can_send_now(pbap_client->goep_cid); 429 } 430 break; 431 case GOEP_SUBEVENT_CONNECTION_CLOSED: 432 if (pbap_client->state != PBAP_CONNECTED){ 433 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 434 } 435 pbap_client->state = PBAP_INIT; 436 pbap_client_emit_connection_closed_event(pbap_client); 437 break; 438 case GOEP_SUBEVENT_CAN_SEND_NOW: 439 pbap_handle_can_send_now(); 440 break; 441 } 442 break; 443 default: 444 break; 445 } 446 break; 447 case GOEP_DATA_PACKET: 448 // TODO: handle chunked data 449 obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 450 switch (pbap_client->state){ 451 case PBAP_W4_CONNECT_RESPONSE: 452 switch (packet[0]){ 453 case OBEX_RESP_SUCCESS: 454 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)){ 455 uint8_t hi = obex_iterator_get_hi(&it); 456 if (hi == OBEX_HEADER_CONNECTION_ID){ 457 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 458 } 459 } 460 pbap_client->state = PBAP_CONNECTED; 461 pbap_client_emit_connected_event(pbap_client, 0); 462 break; 463 case OBEX_RESP_UNAUTHORIZED: 464 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)){ 465 uint8_t hi = obex_iterator_get_hi(&it); 466 if (hi == OBEX_HEADER_AUTHENTICATION_CHALLENGE){ 467 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 468 } 469 } 470 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 471 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 472 break; 473 default: 474 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 475 pbap_client->state = PBAP_INIT; 476 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 477 break; 478 } 479 break; 480 case PBAP_W4_DISCONNECT_RESPONSE: 481 goep_client_disconnect(pbap_client->goep_cid); 482 break; 483 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 484 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 485 log_info("set path root/path element complete, current folder %s, path offset %u", pbap_client->current_folder, pbap_client->set_path_offset); 486 if (packet[0] == OBEX_RESP_SUCCESS){ 487 if (pbap_client->current_folder){ 488 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 489 goep_client_request_can_send_now(pbap_client->goep_cid); 490 } else { 491 pbap_client->state = PBAP_CONNECTED; 492 pbap_client_emit_operation_complete_event(pbap_client, 0); 493 } 494 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 495 pbap_client->state = PBAP_CONNECTED; 496 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 497 } else { 498 pbap_client->state = PBAP_CONNECTED; 499 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 500 } 501 break; 502 case PBAP_W4_PHONEBOOK: 503 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)){ 504 uint8_t hi = obex_iterator_get_hi(&it); 505 uint16_t data_len = obex_iterator_get_data_len(&it); 506 const uint8_t * data = data = obex_iterator_get_data(&it); 507 switch (hi){ 508 case OBEX_HEADER_BODY: 509 case OBEX_HEADER_END_OF_BODY: 510 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 511 break; 512 case OBEX_HEADER_SINGLE_RESPONSE_MODE: 513 if (data_len != 1) break; 514 if (pbap_client->request_number) break; 515 pbap_client->single_response_mode_active = *data; 516 log_info("SRM active %u", pbap_client->single_response_mode_active); 517 break; 518 default: 519 break; 520 } 521 } 522 switch(packet[0]){ 523 case OBEX_RESP_CONTINUE: 524 // With SRM, server sends complete response without additional GET requests 525 if (pbap_client->single_response_mode_active) break; 526 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 527 goep_client_request_can_send_now(pbap_client->goep_cid); 528 break; 529 case OBEX_RESP_SUCCESS: 530 pbap_client->state = PBAP_CONNECTED; 531 pbap_client_emit_operation_complete_event(pbap_client, 0); 532 break; 533 default: 534 log_info("unexpected response 0x%02x", packet[0]); 535 pbap_client->state = PBAP_CONNECTED; 536 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 537 break; 538 } 539 break; 540 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 541 pbap_client->state = PBAP_CONNECTED; 542 if (packet[0] == OBEX_RESP_SUCCESS){ 543 int have_size = 0; 544 uint16_t phonebook_size; 545 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)){ 546 uint8_t hi = obex_iterator_get_hi(&it); 547 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 548 uint16_t data_len = obex_iterator_get_data_len(&it); 549 const uint8_t * data = obex_iterator_get_data(&it); 550 // iterate over application headers (TLV with 1 bytes len) 551 unsigned int i = 0; 552 while (i<data_len){ 553 uint8_t tag = data[i++]; 554 uint8_t len = data[i++]; 555 if (tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE && len == 2){ 556 have_size = 1; 557 phonebook_size = big_endian_read_16(data, i); 558 } 559 i+=len; 560 } 561 } 562 } 563 if (have_size){ 564 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 565 break; 566 } 567 } 568 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 569 break; 570 case PBAP_W4_GET_CARD_LIST_COMPLETE: 571 switch (packet[0]){ 572 case OBEX_RESP_CONTINUE: 573 pbap_client->state = PBAP_W2_GET_CARD_LIST; 574 goep_client_request_can_send_now(pbap_client->goep_cid); 575 break; 576 case OBEX_RESP_SUCCESS: 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 uint16_t data_len = obex_iterator_get_data_len(&it); 581 const uint8_t * data = obex_iterator_get_data(&it); 582 // now try parsing it 583 yxml_init(&pbap_client->xml_parser, pbap_client->xml_buffer, sizeof(pbap_client->xml_buffer)); 584 int card_found = 0; 585 int name_found = 0; 586 int handle_found = 0; 587 char name[PBAP_MAX_NAME_LEN]; 588 char handle[PBAP_MAX_HANDLE_LEN]; 589 name[0] = 0; 590 handle[0] = 0; 591 while (data_len--){ 592 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 593 switch (r){ 594 case YXML_ELEMSTART: 595 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 596 break; 597 case YXML_ELEMEND: 598 if (card_found){ 599 pbap_client_emit_card_result_event(pbap_client, name, handle); 600 } 601 card_found = 0; 602 break; 603 case YXML_ATTRSTART: 604 if (!card_found) break; 605 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 606 name_found = 1; 607 break; 608 } 609 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 610 handle_found = 1; 611 break; 612 } 613 break; 614 case YXML_ATTRVAL: 615 if (name_found) { 616 // "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." 617 if (strlen(name) + 4 + 1 >= sizeof(name)) break; 618 strcat(name, pbap_client->xml_parser.data); 619 break; 620 } 621 if (handle_found) { 622 // "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." 623 if (strlen(handle) + 4 + 1 >= sizeof(handle)) break; 624 strcat(handle, pbap_client->xml_parser.data); 625 break; 626 } 627 break; 628 case YXML_ATTREND: 629 name_found = 0; 630 handle_found = 0; 631 break; 632 default: 633 break; 634 } 635 } 636 // 637 pbap_client->state = PBAP_CONNECTED; 638 pbap_client_emit_operation_complete_event(pbap_client, 0); 639 } 640 } 641 break; 642 case OBEX_RESP_NOT_ACCEPTABLE: 643 pbap_client->state = PBAP_CONNECTED; 644 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 645 break; 646 default: 647 log_info("unexpected response 0x%02x", packet[0]); 648 pbap_client->state = PBAP_CONNECTED; 649 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 650 break; 651 } 652 break; 653 default: 654 break; 655 } 656 break; 657 default: 658 break; 659 } 660 } 661 662 void pbap_client_init(void){ 663 memset(pbap_client, 0, sizeof(pbap_client_t)); 664 pbap_client->state = PBAP_INIT; 665 pbap_client->cid = 1; 666 } 667 668 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 669 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 670 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 671 pbap_client->client_handler = handler; 672 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 673 *out_cid = pbap_client->cid; 674 if (err) return err; 675 return 0; 676 } 677 678 uint8_t pbap_disconnect(uint16_t pbap_cid){ 679 UNUSED(pbap_cid); 680 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 681 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 682 goep_client_request_can_send_now(pbap_client->goep_cid); 683 return 0; 684 } 685 686 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid){ 687 UNUSED(pbap_cid); 688 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 689 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 690 pbap_client->request_number = 0; 691 goep_client_request_can_send_now(pbap_client->goep_cid); 692 return 0; 693 } 694 695 uint8_t pbap_pull_phonebook(uint16_t pbap_cid){ 696 UNUSED(pbap_cid); 697 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 698 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 699 pbap_client->request_number = 0; 700 pbap_client->single_response_mode_active = 0; 701 goep_client_request_can_send_now(pbap_client->goep_cid); 702 return 0; 703 } 704 705 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 706 UNUSED(pbap_cid); 707 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 708 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 709 pbap_client->current_folder = path; 710 pbap_client->set_path_offset = 0; 711 goep_client_request_can_send_now(pbap_client->goep_cid); 712 return 0; 713 } 714 715 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 716 UNUSED(pbap_cid); 717 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 718 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 719 pbap_client->authentication_password = password; 720 goep_client_request_can_send_now(pbap_client->goep_cid); 721 return 0; 722 } 723 724 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 725 UNUSED(pbap_cid); 726 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 727 pbap_client->state = PBAP_W2_GET_CARD_LIST; 728 pbap_client->phone_number = phone_number; 729 goep_client_request_can_send_now(pbap_client->goep_cid); 730 return 0; 731 } 732