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 const char * current_folder; 113 const char * phone_number; 114 uint16_t set_path_offset; 115 uint8_t authentication_options; 116 uint16_t authentication_nonce[16]; 117 const char * authentication_password; 118 yxml_t xml_parser; 119 uint8_t xml_buffer[50]; 120 } pbap_client_t; 121 122 static pbap_client_t _pbap_client; 123 static pbap_client_t * pbap_client = &_pbap_client; 124 125 static void pbap_client_emit_connected_event(pbap_client_t * context, uint8_t status){ 126 uint8_t event[15]; 127 int pos = 0; 128 event[pos++] = HCI_EVENT_PBAP_META; 129 pos++; // skip len 130 event[pos++] = PBAP_SUBEVENT_CONNECTION_OPENED; 131 little_endian_store_16(event,pos,context->cid); 132 pos+=2; 133 event[pos++] = status; 134 memcpy(&event[pos], context->bd_addr, 6); 135 pos += 6; 136 little_endian_store_16(event,pos,context->con_handle); 137 pos += 2; 138 event[pos++] = context->incoming; 139 event[1] = pos - 2; 140 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 141 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 142 } 143 144 static void pbap_client_emit_connection_closed_event(pbap_client_t * context){ 145 uint8_t event[5]; 146 int pos = 0; 147 event[pos++] = HCI_EVENT_PBAP_META; 148 pos++; // skip len 149 event[pos++] = PBAP_SUBEVENT_CONNECTION_CLOSED; 150 little_endian_store_16(event,pos,context->cid); 151 pos+=2; 152 event[1] = pos - 2; 153 if (pos != sizeof(event)) log_error("pbap_client_emit_connection_closed_event size %u", pos); 154 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 155 } 156 157 static void pbap_client_emit_operation_complete_event(pbap_client_t * context, uint8_t status){ 158 uint8_t event[6]; 159 int pos = 0; 160 event[pos++] = HCI_EVENT_PBAP_META; 161 pos++; // skip len 162 event[pos++] = PBAP_SUBEVENT_OPERATION_COMPLETED; 163 little_endian_store_16(event,pos,context->cid); 164 pos+=2; 165 event[pos++]= status; 166 event[1] = pos - 2; 167 if (pos != sizeof(event)) log_error("pbap_client_emit_can_send_now_event size %u", pos); 168 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 169 } 170 171 static void pbap_client_emit_phonebook_size_event(pbap_client_t * context, uint8_t status, uint16_t phonebook_size){ 172 uint8_t event[8]; 173 int pos = 0; 174 event[pos++] = HCI_EVENT_PBAP_META; 175 pos++; // skip len 176 event[pos++] = PBAP_SUBEVENT_PHONEBOOK_SIZE; 177 little_endian_store_16(event,pos,context->cid); 178 pos+=2; 179 event[pos++] = status; 180 little_endian_store_16(event,pos, phonebook_size); 181 pos+=2; 182 event[1] = pos - 2; 183 if (pos != sizeof(event)) log_error("pbap_client_emit_phonebook_size_event size %u", pos); 184 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 185 } 186 187 static void pbap_client_emit_authentication_event(pbap_client_t * context, uint8_t options){ 188 // split options 189 uint8_t user_id_required = options & 1 ? 1 : 0; 190 uint8_t full_access = options & 2 ? 1 : 0; 191 192 uint8_t event[7]; 193 int pos = 0; 194 event[pos++] = HCI_EVENT_PBAP_META; 195 pos++; // skip len 196 event[pos++] = PBAP_SUBEVENT_AUTHENTICATION_REQUEST; 197 little_endian_store_16(event,pos,context->cid); 198 pos+=2; 199 event[pos++] = user_id_required; 200 event[pos++] = full_access; 201 if (pos != sizeof(event)) log_error("pbap_client_emit_authentication_event size %u", pos); 202 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 203 } 204 205 static void pbap_client_emit_card_result_event(pbap_client_t * context, const char * name, const char * handle){ 206 uint8_t event[5 + PBAP_MAX_NAME_LEN + PBAP_MAX_HANDLE_LEN]; 207 int pos = 0; 208 event[pos++] = HCI_EVENT_PBAP_META; 209 pos++; // skip len 210 event[pos++] = PBAP_SUBEVENT_CARD_RESULT; 211 little_endian_store_16(event,pos,context->cid); 212 pos+=2; 213 int name_len = btstack_min(PBAP_MAX_NAME_LEN, strlen(name)); 214 event[pos++] = name_len; 215 memcpy(&event[pos], name, name_len); 216 pos += name_len; 217 int handle_len = btstack_min(PBAP_MAX_HANDLE_LEN, strlen(handle)); 218 event[pos++] = handle_len; 219 memcpy(&event[pos], handle, handle_len); 220 pos += handle_len; 221 event[1] = pos - 2; 222 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 223 } 224 225 static const uint8_t collon = (uint8_t) ':'; 226 227 static void pbap_handle_can_send_now(void){ 228 uint8_t path_element[20]; 229 uint16_t path_element_start; 230 uint16_t path_element_len; 231 uint8_t application_parameters[PBAP_MAX_PHONE_NUMBER_LEN + 10]; 232 uint8_t challenge_response[36]; 233 int i; 234 uint16_t phone_number_len; 235 236 MD5_CTX md5_ctx; 237 238 switch (pbap_client->state){ 239 case PBAP_W2_SEND_CONNECT_REQUEST: 240 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 241 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 242 // Mandatory if the PSE advertises a PbapSupportedFeatures attribute in its SDP record, else excluded. 243 if (goep_client_get_pbap_supported_features(pbap_client->goep_cid) != PBAP_FEATURES_NOT_PRESENT){ 244 application_parameters[0] = PBAP_APPLICATION_PARAMETER_PBAP_SUPPORTED_FEATURES; 245 application_parameters[1] = 4; 246 big_endian_store_32(application_parameters, 2, pbap_supported_features); 247 goep_client_add_header_application_parameters(pbap_client->goep_cid, 6, &application_parameters[0]); 248 } 249 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 250 goep_client_execute(pbap_client->goep_cid); 251 break; 252 case PBAP_W2_SEND_AUTHENTICATED_CONNECT: 253 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 254 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 255 // setup authentication challenge response 256 i = 0; 257 challenge_response[i++] = 0; // Tag Digest 258 challenge_response[i++] = 16; // Len 259 // calculate md5 260 MD5_Init(&md5_ctx); 261 MD5_Update(&md5_ctx, pbap_client->authentication_nonce, 16); 262 MD5_Update(&md5_ctx, &collon, 1); 263 MD5_Update(&md5_ctx, pbap_client->authentication_password, strlen(pbap_client->authentication_password)); 264 MD5_Final(&challenge_response[i], &md5_ctx); 265 i += 16; 266 challenge_response[i++] = 2; // Tag Nonce 267 challenge_response[i++] = 16; // Len 268 memcpy(&challenge_response[i], pbap_client->authentication_nonce, 16); 269 i += 16; 270 goep_client_add_header_challenge_response(pbap_client->goep_cid, i, challenge_response); 271 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 272 goep_client_execute(pbap_client->goep_cid); 273 break; 274 case PBAP_W2_SEND_DISCONNECT_REQUEST: 275 goep_client_create_disconnect_request(pbap_client->goep_cid); 276 pbap_client->state = PBAP_W4_DISCONNECT_RESPONSE; 277 goep_client_execute(pbap_client->goep_cid); 278 return; 279 case PBAP_W2_PULL_PHONEBOOK: 280 case PBAP_W2_GET_PHONEBOOK_SIZE: 281 goep_client_create_get_request(pbap_client->goep_cid); 282 goep_client_add_header_type(pbap_client->goep_cid, pbap_phonebook_type); 283 goep_client_add_header_name(pbap_client->goep_cid, pbap_phonebook_name); 284 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 285 // Regular TLV wih 1-byte len 286 application_parameters[0] = PBAP_APPLICATION_PARAMETER_MAX_LIST_COUNT; 287 application_parameters[1] = 2; 288 big_endian_store_16(application_parameters, 2, 0); 289 goep_client_add_header_application_parameters(pbap_client->goep_cid, 4, &application_parameters[0]); 290 // state 291 pbap_client->state = PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE; 292 } else { 293 // state 294 pbap_client->state = PBAP_W4_PHONEBOOK; 295 } 296 // send packet 297 goep_client_execute(pbap_client->goep_cid); 298 break; 299 case PBAP_W2_GET_CARD_LIST: 300 goep_client_create_get_request(pbap_client->goep_cid); 301 goep_client_add_header_type(pbap_client->goep_cid, pbap_vcard_listing_type); 302 goep_client_add_header_name(pbap_client->goep_cid, pbap_vcard_listing_name); 303 // Regular TLV wih 1-byte len 304 i = 0; 305 phone_number_len = btstack_min(PBAP_MAX_PHONE_NUMBER_LEN, strlen(pbap_client->phone_number)); 306 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_VALUE; 307 application_parameters[i++] = phone_number_len; 308 memcpy(&application_parameters[i], pbap_client->phone_number, phone_number_len); 309 i += phone_number_len; 310 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_PROPERTY; 311 application_parameters[i++] = 1; 312 application_parameters[i++] = 0x01; // Number 313 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 314 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 315 // send packet 316 goep_client_execute(pbap_client->goep_cid); 317 break; 318 case PBAP_W2_SET_PATH_ROOT: 319 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 320 // On Android 4.2 Cyanogenmod, using "" as path fails 321 // goep_client_add_header_name(pbap_client->goep_cid, ""); // empty == / 322 // state 323 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 324 // send packet 325 goep_client_execute(pbap_client->goep_cid); 326 break; 327 case PBAP_W2_SET_PATH_ELEMENT: 328 // find '/' or '\0' 329 path_element_start = pbap_client->set_path_offset; 330 while (pbap_client->current_folder[pbap_client->set_path_offset] != '\0' && 331 pbap_client->current_folder[pbap_client->set_path_offset] != '/'){ 332 pbap_client->set_path_offset++; 333 } 334 // skip / 335 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 336 pbap_client->set_path_offset++; 337 } 338 path_element_len = pbap_client->set_path_offset-path_element_start; 339 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 340 path_element[path_element_len] = 0; 341 342 // detect end of path (after setting path_element) 343 if (pbap_client->current_folder[pbap_client->set_path_offset] == '\0'){ 344 pbap_client->current_folder = NULL; 345 } 346 347 log_info("Path element '%s', done %u", path_element, pbap_client->current_folder == NULL); 348 349 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 350 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 351 // state 352 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 353 // send packet 354 goep_client_execute(pbap_client->goep_cid); 355 break; 356 default: 357 break; 358 } 359 } 360 361 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 362 // printf("Challenge: "); 363 // printf_hexdump(challenge_data, challenge_len); 364 int i; 365 // uint8_t charset_code = 0; 366 for (i=0 ; i<challenge_len ; ){ 367 int tag = challenge_data[i]; 368 int len = challenge_data[i + 1]; 369 i += 2; 370 switch (tag) { 371 case 0: 372 if (len != 0x10) { 373 log_error("Invalid OBEX digest len %u", len); 374 return; 375 } 376 memcpy(context->authentication_nonce, &challenge_data[i], 16); 377 // printf("Nonce: "); 378 // printf_hexdump(context->authentication_nonce, 16); 379 break; 380 case 1: 381 context->authentication_options = challenge_data[i]; 382 // printf("Options %u\n", context->authentication_options); 383 break; 384 case 2: 385 // TODO: handle charset 386 // charset_code = challenge_data[i]; 387 break; 388 } 389 i += len; 390 } 391 } 392 393 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 394 395 UNUSED(channel); // ok: there is no channel 396 UNUSED(size); // ok: handling own geop events 397 398 obex_iterator_t it; 399 uint8_t status; 400 switch (packet_type){ 401 case HCI_EVENT_PACKET: 402 switch (hci_event_packet_get_type(packet)) { 403 case HCI_EVENT_GOEP_META: 404 switch (hci_event_goep_meta_get_subevent_code(packet)){ 405 case GOEP_SUBEVENT_CONNECTION_OPENED: 406 status = goep_subevent_connection_opened_get_status(packet); 407 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 408 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 409 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 410 if (status){ 411 log_info("pbap: connection failed %u", status); 412 pbap_client->state = PBAP_INIT; 413 pbap_client_emit_connected_event(pbap_client, status); 414 } else { 415 log_info("pbap: connection established"); 416 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 417 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 418 goep_client_request_can_send_now(pbap_client->goep_cid); 419 } 420 break; 421 case GOEP_SUBEVENT_CONNECTION_CLOSED: 422 if (pbap_client->state != PBAP_CONNECTED){ 423 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 424 } 425 pbap_client->state = PBAP_INIT; 426 pbap_client_emit_connection_closed_event(pbap_client); 427 break; 428 case GOEP_SUBEVENT_CAN_SEND_NOW: 429 pbap_handle_can_send_now(); 430 break; 431 } 432 break; 433 default: 434 break; 435 } 436 break; 437 case GOEP_DATA_PACKET: 438 // TODO: handle chunked data 439 // obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 440 switch (pbap_client->state){ 441 case PBAP_W4_CONNECT_RESPONSE: 442 switch (packet[0]){ 443 case OBEX_RESP_SUCCESS: 444 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)){ 445 uint8_t hi = obex_iterator_get_hi(&it); 446 if (hi == OBEX_HEADER_CONNECTION_ID){ 447 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 448 } 449 } 450 pbap_client->state = PBAP_CONNECTED; 451 pbap_client_emit_connected_event(pbap_client, 0); 452 break; 453 case OBEX_RESP_UNAUTHORIZED: 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_AUTHENTICATION_CHALLENGE){ 457 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 458 } 459 } 460 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 461 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 462 break; 463 default: 464 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 465 pbap_client->state = PBAP_INIT; 466 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 467 break; 468 } 469 break; 470 case PBAP_W4_DISCONNECT_RESPONSE: 471 goep_client_disconnect(pbap_client->goep_cid); 472 break; 473 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 474 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 475 log_info("set path root/path element complete, current folder %s, path offset %u", pbap_client->current_folder, pbap_client->set_path_offset); 476 if (packet[0] == OBEX_RESP_SUCCESS){ 477 if (pbap_client->current_folder){ 478 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 479 goep_client_request_can_send_now(pbap_client->goep_cid); 480 } else { 481 pbap_client_emit_operation_complete_event(pbap_client, 0); 482 } 483 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 484 pbap_client->state = PBAP_CONNECTED; 485 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 486 } else { 487 pbap_client->state = PBAP_CONNECTED; 488 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 489 } 490 break; 491 case PBAP_W4_PHONEBOOK: 492 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)){ 493 uint8_t hi = obex_iterator_get_hi(&it); 494 if (hi == OBEX_HEADER_BODY || hi == OBEX_HEADER_END_OF_BODY){ 495 uint16_t data_len = obex_iterator_get_data_len(&it); 496 const uint8_t * data = obex_iterator_get_data(&it); 497 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 498 } 499 } 500 switch(packet[0]){ 501 case OBEX_RESP_CONTINUE: 502 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 503 goep_client_request_can_send_now(pbap_client->goep_cid); 504 break; 505 case OBEX_RESP_SUCCESS: 506 pbap_client->state = PBAP_CONNECTED; 507 pbap_client_emit_operation_complete_event(pbap_client, 0); 508 break; 509 default: 510 log_info("unexpected response 0x%02x", packet[0]); 511 pbap_client->state = PBAP_CONNECTED; 512 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 513 break; 514 } 515 break; 516 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 517 pbap_client->state = PBAP_CONNECTED; 518 if (packet[0] == OBEX_RESP_SUCCESS){ 519 int have_size = 0; 520 uint16_t phonebook_size; 521 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)){ 522 uint8_t hi = obex_iterator_get_hi(&it); 523 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 524 uint16_t data_len = obex_iterator_get_data_len(&it); 525 const uint8_t * data = obex_iterator_get_data(&it); 526 // iterate over application headers (TLV with 1 bytes len) 527 unsigned int i = 0; 528 while (i<data_len){ 529 uint8_t tag = data[i++]; 530 uint8_t len = data[i++]; 531 if (tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE && len == 2){ 532 have_size = 1; 533 phonebook_size = big_endian_read_16(data, i); 534 } 535 i+=len; 536 } 537 } 538 } 539 if (have_size){ 540 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 541 break; 542 } 543 } 544 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 545 break; 546 case PBAP_W4_GET_CARD_LIST_COMPLETE: 547 switch (packet[0]){ 548 case OBEX_RESP_CONTINUE: 549 pbap_client->state = PBAP_W2_GET_CARD_LIST; 550 goep_client_request_can_send_now(pbap_client->goep_cid); 551 break; 552 case OBEX_RESP_SUCCESS: 553 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)){ 554 uint8_t hi = obex_iterator_get_hi(&it); 555 if (hi == OBEX_HEADER_END_OF_BODY){ 556 uint16_t data_len = obex_iterator_get_data_len(&it); 557 const uint8_t * data = obex_iterator_get_data(&it); 558 // now try parsing it 559 yxml_init(&pbap_client->xml_parser, pbap_client->xml_buffer, sizeof(pbap_client->xml_buffer)); 560 int card_found = 0; 561 int name_found = 0; 562 int handle_found = 0; 563 char name[PBAP_MAX_NAME_LEN]; 564 char handle[PBAP_MAX_HANDLE_LEN]; 565 name[0] = 0; 566 handle[0] = 0; 567 while (data_len--){ 568 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 569 switch (r){ 570 case YXML_ELEMSTART: 571 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 572 break; 573 case YXML_ELEMEND: 574 if (card_found){ 575 pbap_client_emit_card_result_event(pbap_client, name, handle); 576 } 577 card_found = 0; 578 break; 579 case YXML_ATTRSTART: 580 if (!card_found) break; 581 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 582 name_found = 1; 583 break; 584 } 585 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 586 handle_found = 1; 587 break; 588 } 589 break; 590 case YXML_ATTRVAL: 591 if (name_found) { 592 // "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." 593 if (strlen(name) + 4 + 1 >= sizeof(name)) break; 594 strcat(name, pbap_client->xml_parser.data); 595 break; 596 } 597 if (handle_found) { 598 // "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." 599 if (strlen(handle) + 4 + 1 >= sizeof(handle)) break; 600 strcat(handle, pbap_client->xml_parser.data); 601 break; 602 } 603 break; 604 case YXML_ATTREND: 605 name_found = 0; 606 handle_found = 0; 607 break; 608 default: 609 break; 610 } 611 } 612 // 613 pbap_client->state = PBAP_CONNECTED; 614 pbap_client_emit_operation_complete_event(pbap_client, 0); 615 } 616 } 617 break; 618 case OBEX_RESP_NOT_ACCEPTABLE: 619 pbap_client->state = PBAP_CONNECTED; 620 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 621 break; 622 default: 623 log_info("unexpected response 0x%02x", packet[0]); 624 pbap_client->state = PBAP_CONNECTED; 625 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 626 break; 627 } 628 break; 629 default: 630 break; 631 } 632 break; 633 default: 634 break; 635 } 636 } 637 638 void pbap_client_init(void){ 639 memset(pbap_client, 0, sizeof(pbap_client_t)); 640 pbap_client->state = PBAP_INIT; 641 pbap_client->cid = 1; 642 } 643 644 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 645 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 646 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 647 pbap_client->client_handler = handler; 648 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 649 *out_cid = pbap_client->cid; 650 if (err) return err; 651 return 0; 652 } 653 654 uint8_t pbap_disconnect(uint16_t pbap_cid){ 655 UNUSED(pbap_cid); 656 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 657 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 658 goep_client_request_can_send_now(pbap_client->goep_cid); 659 return 0; 660 } 661 662 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid){ 663 UNUSED(pbap_cid); 664 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 665 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 666 goep_client_request_can_send_now(pbap_client->goep_cid); 667 return 0; 668 } 669 670 uint8_t pbap_pull_phonebook(uint16_t pbap_cid){ 671 UNUSED(pbap_cid); 672 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 673 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 674 goep_client_request_can_send_now(pbap_client->goep_cid); 675 return 0; 676 } 677 678 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 679 UNUSED(pbap_cid); 680 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 681 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 682 pbap_client->current_folder = path; 683 pbap_client->set_path_offset = 0; 684 goep_client_request_can_send_now(pbap_client->goep_cid); 685 return 0; 686 } 687 688 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 689 UNUSED(pbap_cid); 690 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 691 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 692 pbap_client->authentication_password = password; 693 goep_client_request_can_send_now(pbap_client->goep_cid); 694 return 0; 695 } 696 697 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 698 UNUSED(pbap_cid); 699 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 700 pbap_client->state = PBAP_W2_GET_CARD_LIST; 701 pbap_client->phone_number = phone_number; 702 goep_client_request_can_send_now(pbap_client->goep_cid); 703 return 0; 704 } 705