1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define __BTSTACK_FILE__ "pbap_client.c" 39 40 #include "btstack_config.h" 41 42 #include <stdint.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 47 #include "hci_cmd.h" 48 #include "btstack_run_loop.h" 49 #include "btstack_debug.h" 50 #include "hci.h" 51 #include "btstack_memory.h" 52 #include "hci_dump.h" 53 #include "l2cap.h" 54 #include "bluetooth_sdp.h" 55 #include "classic/sdp_client_rfcomm.h" 56 #include "btstack_event.h" 57 #include "md5.h" 58 #include "yxml.h" 59 60 #include "classic/obex.h" 61 #include "classic/obex_iterator.h" 62 #include "classic/goep_client.h" 63 #include "classic/pbap_client.h" 64 65 // 796135f0-f0c5-11d8-0966- 0800200c9a66 66 static const uint8_t pbap_uuid[] = { 0x79, 0x61, 0x35, 0xf0, 0xf0, 0xc5, 0x11, 0xd8, 0x09, 0x66, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66}; 67 68 const char * pbap_phonebook_type = "x-bt/phonebook"; 69 70 const char * pbap_vcard_listing_type = "x-bt/vcard-listing"; 71 const char * pbap_vcard_listing_name = "pb"; 72 73 // default 74 static uint32_t pbap_supported_features = 0x0000; 75 76 typedef enum { 77 PBAP_INIT = 0, 78 PBAP_W4_GOEP_CONNECTION, 79 PBAP_W2_SEND_CONNECT_REQUEST, 80 PBAP_W4_CONNECT_RESPONSE, 81 PBAP_W4_USER_AUTHENTICATION, 82 PBAP_W2_SEND_AUTHENTICATED_CONNECT, 83 PBAP_CONNECT_RESPONSE_RECEIVED, 84 PBAP_CONNECTED, 85 // 86 PBAP_W2_SEND_DISCONNECT_REQUEST, 87 PBAP_W4_DISCONNECT_RESPONSE, 88 // 89 PBAP_W2_PULL_PHONEBOOK, 90 PBAP_W4_PHONEBOOK, 91 PBAP_W2_SET_PATH_ROOT, 92 PBAP_W4_SET_PATH_ROOT_COMPLETE, 93 PBAP_W2_SET_PATH_ELEMENT, 94 PBAP_W4_SET_PATH_ELEMENT_COMPLETE, 95 PBAP_W2_GET_PHONEBOOK_SIZE, 96 PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE, 97 // 98 PBAP_W2_GET_CARD_LIST, 99 PBAP_W4_GET_CARD_LIST_COMPLETE, 100 101 } pbap_state_t; 102 103 typedef enum { 104 SRM_DISABLED, 105 SRM_W4_CONFIRM, 106 SRM_ENABLED_BUT_WAITING, 107 SRM_ENABLED 108 } srm_state_t; 109 110 typedef struct pbap_client { 111 pbap_state_t state; 112 uint16_t cid; 113 bd_addr_t bd_addr; 114 hci_con_handle_t con_handle; 115 uint8_t incoming; 116 uint16_t goep_cid; 117 btstack_packet_handler_t client_handler; 118 int request_number; 119 srm_state_t srm_state; 120 int single_response_mode_parameter; 121 const char * current_folder; 122 const char * phone_number; 123 const char * phonebook_path; 124 uint16_t set_path_offset; 125 uint8_t authentication_options; 126 uint16_t authentication_nonce[16]; 127 const char * authentication_password; 128 yxml_t xml_parser; 129 uint8_t xml_buffer[50]; 130 } pbap_client_t; 131 132 static pbap_client_t _pbap_client; 133 static pbap_client_t * pbap_client = &_pbap_client; 134 135 static void pbap_client_emit_connected_event(pbap_client_t * context, uint8_t status){ 136 uint8_t event[15]; 137 int pos = 0; 138 event[pos++] = HCI_EVENT_PBAP_META; 139 pos++; // skip len 140 event[pos++] = PBAP_SUBEVENT_CONNECTION_OPENED; 141 little_endian_store_16(event,pos,context->cid); 142 pos+=2; 143 event[pos++] = status; 144 memcpy(&event[pos], context->bd_addr, 6); 145 pos += 6; 146 little_endian_store_16(event,pos,context->con_handle); 147 pos += 2; 148 event[pos++] = context->incoming; 149 event[1] = pos - 2; 150 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 151 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 152 } 153 154 static void pbap_client_emit_connection_closed_event(pbap_client_t * context){ 155 uint8_t event[5]; 156 int pos = 0; 157 event[pos++] = HCI_EVENT_PBAP_META; 158 pos++; // skip len 159 event[pos++] = PBAP_SUBEVENT_CONNECTION_CLOSED; 160 little_endian_store_16(event,pos,context->cid); 161 pos+=2; 162 event[1] = pos - 2; 163 if (pos != sizeof(event)) log_error("pbap_client_emit_connection_closed_event size %u", pos); 164 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 165 } 166 167 static void pbap_client_emit_operation_complete_event(pbap_client_t * context, uint8_t status){ 168 uint8_t event[6]; 169 int pos = 0; 170 event[pos++] = HCI_EVENT_PBAP_META; 171 pos++; // skip len 172 event[pos++] = PBAP_SUBEVENT_OPERATION_COMPLETED; 173 little_endian_store_16(event,pos,context->cid); 174 pos+=2; 175 event[pos++]= status; 176 event[1] = pos - 2; 177 if (pos != sizeof(event)) log_error("pbap_client_emit_can_send_now_event size %u", pos); 178 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 179 } 180 181 static void pbap_client_emit_phonebook_size_event(pbap_client_t * context, uint8_t status, uint16_t phonebook_size){ 182 uint8_t event[8]; 183 int pos = 0; 184 event[pos++] = HCI_EVENT_PBAP_META; 185 pos++; // skip len 186 event[pos++] = PBAP_SUBEVENT_PHONEBOOK_SIZE; 187 little_endian_store_16(event,pos,context->cid); 188 pos+=2; 189 event[pos++] = status; 190 little_endian_store_16(event,pos, phonebook_size); 191 pos+=2; 192 event[1] = pos - 2; 193 if (pos != sizeof(event)) log_error("pbap_client_emit_phonebook_size_event size %u", pos); 194 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 195 } 196 197 static void pbap_client_emit_authentication_event(pbap_client_t * context, uint8_t options){ 198 // split options 199 uint8_t user_id_required = options & 1 ? 1 : 0; 200 uint8_t full_access = options & 2 ? 1 : 0; 201 202 uint8_t event[7]; 203 int pos = 0; 204 event[pos++] = HCI_EVENT_PBAP_META; 205 pos++; // skip len 206 event[pos++] = PBAP_SUBEVENT_AUTHENTICATION_REQUEST; 207 little_endian_store_16(event,pos,context->cid); 208 pos+=2; 209 event[pos++] = user_id_required; 210 event[pos++] = full_access; 211 if (pos != sizeof(event)) log_error("pbap_client_emit_authentication_event size %u", pos); 212 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 213 } 214 215 static void pbap_client_emit_card_result_event(pbap_client_t * context, const char * name, const char * handle){ 216 uint8_t event[5 + PBAP_MAX_NAME_LEN + PBAP_MAX_HANDLE_LEN]; 217 int pos = 0; 218 event[pos++] = HCI_EVENT_PBAP_META; 219 pos++; // skip len 220 event[pos++] = PBAP_SUBEVENT_CARD_RESULT; 221 little_endian_store_16(event,pos,context->cid); 222 pos+=2; 223 int name_len = btstack_min(PBAP_MAX_NAME_LEN, strlen(name)); 224 event[pos++] = name_len; 225 memcpy(&event[pos], name, name_len); 226 pos += name_len; 227 int handle_len = btstack_min(PBAP_MAX_HANDLE_LEN, strlen(handle)); 228 event[pos++] = handle_len; 229 memcpy(&event[pos], handle, handle_len); 230 pos += handle_len; 231 event[1] = pos - 2; 232 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 233 } 234 235 static const uint8_t collon = (uint8_t) ':'; 236 237 static void pbap_handle_can_send_now(void){ 238 uint8_t path_element[20]; 239 uint16_t path_element_start; 240 uint16_t path_element_len; 241 uint8_t application_parameters[PBAP_MAX_PHONE_NUMBER_LEN + 10]; 242 uint8_t challenge_response[36]; 243 int i; 244 uint16_t phone_number_len; 245 246 MD5_CTX md5_ctx; 247 248 switch (pbap_client->state){ 249 case PBAP_W2_SEND_CONNECT_REQUEST: 250 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 251 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 252 // Mandatory if the PSE advertises a PbapSupportedFeatures attribute in its SDP record, else excluded. 253 if (goep_client_get_pbap_supported_features(pbap_client->goep_cid) != PBAP_FEATURES_NOT_PRESENT){ 254 application_parameters[0] = PBAP_APPLICATION_PARAMETER_PBAP_SUPPORTED_FEATURES; 255 application_parameters[1] = 4; 256 big_endian_store_32(application_parameters, 2, pbap_supported_features); 257 goep_client_add_header_application_parameters(pbap_client->goep_cid, 6, &application_parameters[0]); 258 } 259 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 260 goep_client_execute(pbap_client->goep_cid); 261 break; 262 case PBAP_W2_SEND_AUTHENTICATED_CONNECT: 263 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 264 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 265 // setup authentication challenge response 266 i = 0; 267 challenge_response[i++] = 0; // Tag Digest 268 challenge_response[i++] = 16; // Len 269 // calculate md5 270 MD5_Init(&md5_ctx); 271 MD5_Update(&md5_ctx, pbap_client->authentication_nonce, 16); 272 MD5_Update(&md5_ctx, &collon, 1); 273 MD5_Update(&md5_ctx, pbap_client->authentication_password, strlen(pbap_client->authentication_password)); 274 MD5_Final(&challenge_response[i], &md5_ctx); 275 i += 16; 276 challenge_response[i++] = 2; // Tag Nonce 277 challenge_response[i++] = 16; // Len 278 memcpy(&challenge_response[i], pbap_client->authentication_nonce, 16); 279 i += 16; 280 goep_client_add_header_challenge_response(pbap_client->goep_cid, i, challenge_response); 281 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 282 goep_client_execute(pbap_client->goep_cid); 283 break; 284 case PBAP_W2_SEND_DISCONNECT_REQUEST: 285 goep_client_create_disconnect_request(pbap_client->goep_cid); 286 pbap_client->state = PBAP_W4_DISCONNECT_RESPONSE; 287 goep_client_execute(pbap_client->goep_cid); 288 return; 289 case PBAP_W2_PULL_PHONEBOOK: 290 case PBAP_W2_GET_PHONEBOOK_SIZE: 291 goep_client_create_get_request(pbap_client->goep_cid); 292 if (pbap_client->request_number == 0){ 293 goep_client_add_header_srm_enable(pbap_client->goep_cid); 294 pbap_client->srm_state = SRM_W4_CONFIRM; 295 goep_client_add_header_type(pbap_client->goep_cid, pbap_phonebook_type); 296 goep_client_add_header_name(pbap_client->goep_cid, pbap_client->phonebook_path); 297 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 298 // Regular TLV wih 1-byte len 299 application_parameters[0] = PBAP_APPLICATION_PARAMETER_MAX_LIST_COUNT; 300 application_parameters[1] = 2; 301 big_endian_store_16(application_parameters, 2, 0); 302 goep_client_add_header_application_parameters(pbap_client->goep_cid, 4, &application_parameters[0]); 303 } else { 304 // 305 } 306 } 307 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 308 // state 309 pbap_client->state = PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE; 310 } else { 311 // state 312 pbap_client->state = PBAP_W4_PHONEBOOK; 313 } 314 // send packet 315 pbap_client->request_number++; 316 goep_client_execute(pbap_client->goep_cid); 317 break; 318 case PBAP_W2_GET_CARD_LIST: 319 goep_client_create_get_request(pbap_client->goep_cid); 320 if (pbap_client->request_number == 0){ 321 goep_client_add_header_srm_enable(pbap_client->goep_cid); 322 pbap_client->srm_state = SRM_W4_CONFIRM; 323 goep_client_add_header_type(pbap_client->goep_cid, pbap_vcard_listing_type); 324 goep_client_add_header_name(pbap_client->goep_cid, pbap_vcard_listing_name); 325 // Regular TLV wih 1-byte len 326 i = 0; 327 phone_number_len = btstack_min(PBAP_MAX_PHONE_NUMBER_LEN, strlen(pbap_client->phone_number)); 328 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_VALUE; 329 application_parameters[i++] = phone_number_len; 330 memcpy(&application_parameters[i], pbap_client->phone_number, phone_number_len); 331 i += phone_number_len; 332 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_PROPERTY; 333 application_parameters[i++] = 1; 334 application_parameters[i++] = 0x01; // Number 335 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 336 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 337 } 338 // send packet 339 goep_client_execute(pbap_client->goep_cid); 340 break; 341 case PBAP_W2_SET_PATH_ROOT: 342 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 343 // On Android 4.2 Cyanogenmod, using "" as path fails 344 // goep_client_add_header_name(pbap_client->goep_cid, ""); // empty == / 345 // state 346 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 347 // send packet 348 goep_client_execute(pbap_client->goep_cid); 349 break; 350 case PBAP_W2_SET_PATH_ELEMENT: 351 // find '/' or '\0' 352 path_element_start = pbap_client->set_path_offset; 353 while (pbap_client->current_folder[pbap_client->set_path_offset] != '\0' && 354 pbap_client->current_folder[pbap_client->set_path_offset] != '/'){ 355 pbap_client->set_path_offset++; 356 } 357 // skip / 358 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 359 pbap_client->set_path_offset++; 360 } 361 path_element_len = pbap_client->set_path_offset-path_element_start; 362 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 363 path_element[path_element_len] = 0; 364 365 // detect end of path (after setting path_element) 366 if (pbap_client->current_folder[pbap_client->set_path_offset] == '\0'){ 367 pbap_client->current_folder = NULL; 368 } 369 370 log_info("Path element '%s', done %u", path_element, pbap_client->current_folder == NULL); 371 372 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 373 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 374 // state 375 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 376 // send packet 377 goep_client_execute(pbap_client->goep_cid); 378 break; 379 default: 380 break; 381 } 382 } 383 384 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 385 // printf("Challenge: "); 386 // printf_hexdump(challenge_data, challenge_len); 387 int i; 388 // uint8_t charset_code = 0; 389 for (i=0 ; i<challenge_len ; ){ 390 int tag = challenge_data[i]; 391 int len = challenge_data[i + 1]; 392 i += 2; 393 switch (tag) { 394 case 0: 395 if (len != 0x10) { 396 log_error("Invalid OBEX digest len %u", len); 397 return; 398 } 399 memcpy(context->authentication_nonce, &challenge_data[i], 16); 400 // printf("Nonce: "); 401 // printf_hexdump(context->authentication_nonce, 16); 402 break; 403 case 1: 404 context->authentication_options = challenge_data[i]; 405 // printf("Options %u\n", context->authentication_options); 406 break; 407 case 2: 408 // TODO: handle charset 409 // charset_code = challenge_data[i]; 410 break; 411 } 412 i += len; 413 } 414 } 415 416 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 417 418 UNUSED(channel); // ok: there is no channel 419 UNUSED(size); // ok: handling own geop events 420 421 obex_iterator_t it; 422 uint8_t status; 423 int srm_value; 424 int srmp_value; 425 switch (packet_type){ 426 case HCI_EVENT_PACKET: 427 switch (hci_event_packet_get_type(packet)) { 428 case HCI_EVENT_GOEP_META: 429 switch (hci_event_goep_meta_get_subevent_code(packet)){ 430 case GOEP_SUBEVENT_CONNECTION_OPENED: 431 status = goep_subevent_connection_opened_get_status(packet); 432 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 433 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 434 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 435 if (status){ 436 log_info("pbap: connection failed %u", status); 437 pbap_client->state = PBAP_INIT; 438 pbap_client_emit_connected_event(pbap_client, status); 439 } else { 440 log_info("pbap: connection established"); 441 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 442 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 443 goep_client_request_can_send_now(pbap_client->goep_cid); 444 } 445 break; 446 case GOEP_SUBEVENT_CONNECTION_CLOSED: 447 if (pbap_client->state != PBAP_CONNECTED){ 448 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 449 } 450 pbap_client->state = PBAP_INIT; 451 pbap_client_emit_connection_closed_event(pbap_client); 452 break; 453 case GOEP_SUBEVENT_CAN_SEND_NOW: 454 pbap_handle_can_send_now(); 455 break; 456 } 457 break; 458 default: 459 break; 460 } 461 break; 462 case GOEP_DATA_PACKET: 463 // TODO: handle chunked data 464 obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 465 switch (pbap_client->state){ 466 case PBAP_W4_CONNECT_RESPONSE: 467 switch (packet[0]){ 468 case OBEX_RESP_SUCCESS: 469 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)){ 470 uint8_t hi = obex_iterator_get_hi(&it); 471 if (hi == OBEX_HEADER_CONNECTION_ID){ 472 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 473 } 474 } 475 pbap_client->state = PBAP_CONNECTED; 476 pbap_client_emit_connected_event(pbap_client, 0); 477 break; 478 case OBEX_RESP_UNAUTHORIZED: 479 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)){ 480 uint8_t hi = obex_iterator_get_hi(&it); 481 if (hi == OBEX_HEADER_AUTHENTICATION_CHALLENGE){ 482 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 483 } 484 } 485 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 486 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 487 break; 488 default: 489 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 490 pbap_client->state = PBAP_INIT; 491 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 492 break; 493 } 494 break; 495 case PBAP_W4_DISCONNECT_RESPONSE: 496 goep_client_disconnect(pbap_client->goep_cid); 497 break; 498 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 499 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 500 log_info("set path root/path element complete, current folder %s, path offset %u", pbap_client->current_folder, pbap_client->set_path_offset); 501 if (packet[0] == OBEX_RESP_SUCCESS){ 502 if (pbap_client->current_folder){ 503 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 504 goep_client_request_can_send_now(pbap_client->goep_cid); 505 } else { 506 pbap_client->state = PBAP_CONNECTED; 507 pbap_client_emit_operation_complete_event(pbap_client, 0); 508 } 509 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 510 pbap_client->state = PBAP_CONNECTED; 511 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 512 } else { 513 pbap_client->state = PBAP_CONNECTED; 514 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 515 } 516 break; 517 case PBAP_W4_PHONEBOOK: 518 srm_value = OBEX_SRM_DISABLE; 519 srmp_value = OBEX_SRMP_NEXT; 520 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)){ 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_BODY: 526 case OBEX_HEADER_END_OF_BODY: 527 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 528 break; 529 case OBEX_HEADER_SINGLE_RESPONSE_MODE: 530 if (data_len != 1) break; 531 srm_value = *data; 532 break; 533 case OBEX_HEADER_SINGLE_RESPONSE_MODE_PARAMETER: 534 if (data_len != 1) break; 535 srmp_value = *data; 536 break; 537 default: 538 break; 539 } 540 } 541 switch(packet[0]){ 542 case OBEX_RESP_CONTINUE: 543 switch (pbap_client->srm_state){ 544 case SRM_W4_CONFIRM: 545 switch (srm_value){ 546 case OBEX_SRM_ENABLE: 547 switch (srmp_value){ 548 case OBEX_SRMP_WAIT: 549 pbap_client->srm_state = SRM_ENABLED_BUT_WAITING; 550 break; 551 default: 552 pbap_client->srm_state = SRM_ENABLED; 553 break; 554 } 555 break; 556 default: 557 pbap_client->srm_state = SRM_DISABLED; 558 break; 559 } 560 break; 561 case SRM_ENABLED_BUT_WAITING: 562 switch (srmp_value){ 563 case OBEX_SRMP_WAIT: 564 pbap_client->srm_state = SRM_ENABLED_BUT_WAITING; 565 break; 566 default: 567 pbap_client->srm_state = SRM_ENABLED; 568 break; 569 } 570 break; 571 default: 572 break; 573 } 574 log_info("SRM state %u", pbap_client->srm_state); 575 if (pbap_client->srm_state == SRM_ENABLED) break; 576 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 577 goep_client_request_can_send_now(pbap_client->goep_cid); 578 break; 579 case OBEX_RESP_SUCCESS: 580 pbap_client->state = PBAP_CONNECTED; 581 pbap_client_emit_operation_complete_event(pbap_client, 0); 582 break; 583 default: 584 log_info("unexpected response 0x%02x", packet[0]); 585 pbap_client->state = PBAP_CONNECTED; 586 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 587 break; 588 } 589 break; 590 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 591 pbap_client->state = PBAP_CONNECTED; 592 if (packet[0] == OBEX_RESP_SUCCESS){ 593 int have_size = 0; 594 uint16_t phonebook_size; 595 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)){ 596 uint8_t hi = obex_iterator_get_hi(&it); 597 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 598 uint16_t data_len = obex_iterator_get_data_len(&it); 599 const uint8_t * data = obex_iterator_get_data(&it); 600 // iterate over application headers (TLV with 1 bytes len) 601 unsigned int i = 0; 602 while (i<data_len){ 603 uint8_t tag = data[i++]; 604 uint8_t len = data[i++]; 605 if (tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE && len == 2){ 606 have_size = 1; 607 phonebook_size = big_endian_read_16(data, i); 608 } 609 i+=len; 610 } 611 } 612 } 613 if (have_size){ 614 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 615 break; 616 } 617 } 618 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 619 break; 620 case PBAP_W4_GET_CARD_LIST_COMPLETE: 621 switch (packet[0]){ 622 case OBEX_RESP_CONTINUE: 623 pbap_client->state = PBAP_W2_GET_CARD_LIST; 624 goep_client_request_can_send_now(pbap_client->goep_cid); 625 break; 626 case OBEX_RESP_SUCCESS: 627 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)){ 628 uint8_t hi = obex_iterator_get_hi(&it); 629 if (hi == OBEX_HEADER_END_OF_BODY){ 630 uint16_t data_len = obex_iterator_get_data_len(&it); 631 const uint8_t * data = obex_iterator_get_data(&it); 632 // now try parsing it 633 yxml_init(&pbap_client->xml_parser, pbap_client->xml_buffer, sizeof(pbap_client->xml_buffer)); 634 int card_found = 0; 635 int name_found = 0; 636 int handle_found = 0; 637 char name[PBAP_MAX_NAME_LEN]; 638 char handle[PBAP_MAX_HANDLE_LEN]; 639 name[0] = 0; 640 handle[0] = 0; 641 while (data_len--){ 642 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 643 switch (r){ 644 case YXML_ELEMSTART: 645 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 646 break; 647 case YXML_ELEMEND: 648 if (card_found){ 649 pbap_client_emit_card_result_event(pbap_client, name, handle); 650 } 651 card_found = 0; 652 break; 653 case YXML_ATTRSTART: 654 if (!card_found) break; 655 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 656 name_found = 1; 657 break; 658 } 659 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 660 handle_found = 1; 661 break; 662 } 663 break; 664 case YXML_ATTRVAL: 665 if (name_found) { 666 // "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." 667 if (strlen(name) + 4 + 1 >= sizeof(name)) break; 668 strcat(name, pbap_client->xml_parser.data); 669 break; 670 } 671 if (handle_found) { 672 // "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." 673 if (strlen(handle) + 4 + 1 >= sizeof(handle)) break; 674 strcat(handle, pbap_client->xml_parser.data); 675 break; 676 } 677 break; 678 case YXML_ATTREND: 679 name_found = 0; 680 handle_found = 0; 681 break; 682 default: 683 break; 684 } 685 } 686 // 687 pbap_client->state = PBAP_CONNECTED; 688 pbap_client_emit_operation_complete_event(pbap_client, 0); 689 } 690 } 691 break; 692 case OBEX_RESP_NOT_ACCEPTABLE: 693 pbap_client->state = PBAP_CONNECTED; 694 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 695 break; 696 default: 697 log_info("unexpected response 0x%02x", packet[0]); 698 pbap_client->state = PBAP_CONNECTED; 699 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 700 break; 701 } 702 break; 703 default: 704 break; 705 } 706 break; 707 default: 708 break; 709 } 710 } 711 712 void pbap_client_init(void){ 713 memset(pbap_client, 0, sizeof(pbap_client_t)); 714 pbap_client->state = PBAP_INIT; 715 pbap_client->cid = 1; 716 } 717 718 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 719 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 720 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 721 pbap_client->client_handler = handler; 722 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 723 *out_cid = pbap_client->cid; 724 if (err) return err; 725 return 0; 726 } 727 728 uint8_t pbap_disconnect(uint16_t pbap_cid){ 729 UNUSED(pbap_cid); 730 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 731 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 732 goep_client_request_can_send_now(pbap_client->goep_cid); 733 return 0; 734 } 735 736 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid, const char * path){ 737 UNUSED(pbap_cid); 738 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 739 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 740 pbap_client->phonebook_path = path; 741 pbap_client->request_number = 0; 742 goep_client_request_can_send_now(pbap_client->goep_cid); 743 return 0; 744 } 745 746 uint8_t pbap_pull_phonebook(uint16_t pbap_cid, const char * path){ 747 UNUSED(pbap_cid); 748 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 749 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 750 pbap_client->phonebook_path = path; 751 pbap_client->request_number = 0; 752 goep_client_request_can_send_now(pbap_client->goep_cid); 753 return 0; 754 } 755 756 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 757 UNUSED(pbap_cid); 758 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 759 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 760 pbap_client->current_folder = path; 761 pbap_client->set_path_offset = 0; 762 goep_client_request_can_send_now(pbap_client->goep_cid); 763 return 0; 764 } 765 766 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 767 UNUSED(pbap_cid); 768 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 769 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 770 pbap_client->authentication_password = password; 771 goep_client_request_can_send_now(pbap_client->goep_cid); 772 return 0; 773 } 774 775 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 776 UNUSED(pbap_cid); 777 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 778 pbap_client->state = PBAP_W2_GET_CARD_LIST; 779 pbap_client->phone_number = phone_number; 780 goep_client_request_can_send_now(pbap_client->goep_cid); 781 return 0; 782 } 783