1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define __BTSTACK_FILE__ "pbap_client.c" 39 40 #include "btstack_config.h" 41 42 #include <stdint.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 47 #include "hci_cmd.h" 48 #include "btstack_run_loop.h" 49 #include "btstack_debug.h" 50 #include "hci.h" 51 #include "btstack_memory.h" 52 #include "hci_dump.h" 53 #include "l2cap.h" 54 #include "bluetooth_sdp.h" 55 #include "classic/sdp_client_rfcomm.h" 56 #include "btstack_event.h" 57 #include "md5.h" 58 #include "yxml.h" 59 60 #include "classic/obex.h" 61 #include "classic/obex_iterator.h" 62 #include "classic/goep_client.h" 63 #include "classic/pbap_client.h" 64 65 // 796135f0-f0c5-11d8-0966- 0800200c9a66 66 static const uint8_t pbap_uuid[] = { 0x79, 0x61, 0x35, 0xf0, 0xf0, 0xc5, 0x11, 0xd8, 0x09, 0x66, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66}; 67 68 const char * pbap_phonebook_type = "x-bt/phonebook"; 69 const char * pbap_vcard_listing_type = "x-bt/vcard-listing"; 70 const char * pbap_vcard_entry_type = "x-bt/vcard"; 71 72 const char * pbap_vcard_listing_name = "pb"; 73 74 static uint32_t pbap_supported_features = \ 75 PBAP_SUPPORTED_FEATURES_DOWNLOAD | 76 PBAP_SUPPORTED_FEATURES_BROWSING | 77 PBAP_SUPPORTED_FEATURES_DATABASE_IDENTIFIER | 78 PBAP_SUPPORTED_FEATURES_FOLDER_VERSION_COUNTERS | 79 PBAP_SUPPORTED_FEATURES_VCARD_SELECTING | 80 PBAP_SUPPORTED_FEATURES_ENHANCED_MISSED_CALLS | 81 PBAP_SUPPORTED_FEATURES_DEFAULT_CONTACT_IMAGE_FORMAT | 82 PBAP_SUPPORTED_FEATURES_X_BT_UCI_VCARD_PROPERTY | 83 PBAP_SUPPORTED_FEATURES_X_BT_UID_VCARD_PROPERTY | 84 PBAP_SUPPORTED_FEATURES_CONTACT_REFERENCING; 85 86 typedef enum { 87 PBAP_INIT = 0, 88 PBAP_W4_GOEP_CONNECTION, 89 PBAP_W2_SEND_CONNECT_REQUEST, 90 PBAP_W4_CONNECT_RESPONSE, 91 PBAP_W4_USER_AUTHENTICATION, 92 PBAP_W2_SEND_AUTHENTICATED_CONNECT, 93 PBAP_CONNECT_RESPONSE_RECEIVED, 94 PBAP_CONNECTED, 95 // 96 PBAP_W2_SEND_DISCONNECT_REQUEST, 97 PBAP_W4_DISCONNECT_RESPONSE, 98 // 99 PBAP_W2_PULL_PHONEBOOK, 100 PBAP_W4_PHONEBOOK, 101 PBAP_W2_SET_PATH_ROOT, 102 PBAP_W4_SET_PATH_ROOT_COMPLETE, 103 PBAP_W2_SET_PATH_ELEMENT, 104 PBAP_W4_SET_PATH_ELEMENT_COMPLETE, 105 PBAP_W2_GET_PHONEBOOK_SIZE, 106 PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE, 107 // - pull vacard liast 108 PBAP_W2_GET_CARD_LIST, 109 PBAP_W4_GET_CARD_LIST_COMPLETE, 110 // - pull vcard entry 111 PBAP_W2_GET_CARD_ENTRY, 112 PBAP_W4_GET_CARD_ENTRY_COMPLETE 113 114 } pbap_state_t; 115 116 typedef enum { 117 SRM_DISABLED, 118 SRM_W4_CONFIRM, 119 SRM_ENABLED_BUT_WAITING, 120 SRM_ENABLED 121 } srm_state_t; 122 123 typedef struct pbap_client { 124 pbap_state_t state; 125 uint16_t cid; 126 bd_addr_t bd_addr; 127 hci_con_handle_t con_handle; 128 uint8_t incoming; 129 uint16_t goep_cid; 130 btstack_packet_handler_t client_handler; 131 int request_number; 132 srm_state_t srm_state; 133 const char * current_folder; 134 const char * phone_number; 135 const char * phonebook_path; 136 const char * vcard_name; 137 uint16_t set_path_offset; 138 /* vcard selector / operator */ 139 uint32_t vcard_selector; 140 uint8_t vcard_selector_operator; 141 uint8_t vcard_selector_supported; 142 /* abort */ 143 uint8_t abort_operation; 144 /* authentication */ 145 uint8_t authentication_options; 146 uint16_t authentication_nonce[16]; 147 const char * authentication_password; 148 /* xml parser */ 149 yxml_t xml_parser; 150 uint8_t xml_buffer[50]; 151 /* flow control mode */ 152 uint8_t flow_control_enabled; 153 uint8_t flow_next_triggered; 154 } pbap_client_t; 155 156 static pbap_client_t _pbap_client; 157 static pbap_client_t * pbap_client = &_pbap_client; 158 159 static void pbap_client_emit_connected_event(pbap_client_t * context, uint8_t status){ 160 uint8_t event[15]; 161 int pos = 0; 162 event[pos++] = HCI_EVENT_PBAP_META; 163 pos++; // skip len 164 event[pos++] = PBAP_SUBEVENT_CONNECTION_OPENED; 165 little_endian_store_16(event,pos,context->cid); 166 pos+=2; 167 event[pos++] = status; 168 memcpy(&event[pos], context->bd_addr, 6); 169 pos += 6; 170 little_endian_store_16(event,pos,context->con_handle); 171 pos += 2; 172 event[pos++] = context->incoming; 173 event[1] = pos - 2; 174 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 175 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 176 } 177 178 static void pbap_client_emit_connection_closed_event(pbap_client_t * context){ 179 uint8_t event[5]; 180 int pos = 0; 181 event[pos++] = HCI_EVENT_PBAP_META; 182 pos++; // skip len 183 event[pos++] = PBAP_SUBEVENT_CONNECTION_CLOSED; 184 little_endian_store_16(event,pos,context->cid); 185 pos+=2; 186 event[1] = pos - 2; 187 if (pos != sizeof(event)) log_error("pbap_client_emit_connection_closed_event size %u", pos); 188 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 189 } 190 191 static void pbap_client_emit_operation_complete_event(pbap_client_t * context, uint8_t status){ 192 uint8_t event[6]; 193 int pos = 0; 194 event[pos++] = HCI_EVENT_PBAP_META; 195 pos++; // skip len 196 event[pos++] = PBAP_SUBEVENT_OPERATION_COMPLETED; 197 little_endian_store_16(event,pos,context->cid); 198 pos+=2; 199 event[pos++]= status; 200 event[1] = pos - 2; 201 if (pos != sizeof(event)) log_error("pbap_client_emit_can_send_now_event size %u", pos); 202 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 203 } 204 205 static void pbap_client_emit_phonebook_size_event(pbap_client_t * context, uint8_t status, uint16_t phonebook_size){ 206 uint8_t event[8]; 207 int pos = 0; 208 event[pos++] = HCI_EVENT_PBAP_META; 209 pos++; // skip len 210 event[pos++] = PBAP_SUBEVENT_PHONEBOOK_SIZE; 211 little_endian_store_16(event,pos,context->cid); 212 pos+=2; 213 event[pos++] = status; 214 little_endian_store_16(event,pos, phonebook_size); 215 pos+=2; 216 event[1] = pos - 2; 217 if (pos != sizeof(event)) log_error("pbap_client_emit_phonebook_size_event size %u", pos); 218 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 219 } 220 221 static void pbap_client_emit_authentication_event(pbap_client_t * context, uint8_t options){ 222 // split options 223 uint8_t user_id_required = options & 1 ? 1 : 0; 224 uint8_t full_access = options & 2 ? 1 : 0; 225 226 uint8_t event[7]; 227 int pos = 0; 228 event[pos++] = HCI_EVENT_PBAP_META; 229 pos++; // skip len 230 event[pos++] = PBAP_SUBEVENT_AUTHENTICATION_REQUEST; 231 little_endian_store_16(event,pos,context->cid); 232 pos+=2; 233 event[pos++] = user_id_required; 234 event[pos++] = full_access; 235 if (pos != sizeof(event)) log_error("pbap_client_emit_authentication_event size %u", pos); 236 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 237 } 238 239 static void pbap_client_emit_card_result_event(pbap_client_t * context, const char * name, const char * handle){ 240 uint8_t event[5 + PBAP_MAX_NAME_LEN + PBAP_MAX_HANDLE_LEN]; 241 int pos = 0; 242 event[pos++] = HCI_EVENT_PBAP_META; 243 pos++; // skip len 244 event[pos++] = PBAP_SUBEVENT_CARD_RESULT; 245 little_endian_store_16(event,pos,context->cid); 246 pos+=2; 247 int name_len = btstack_min(PBAP_MAX_NAME_LEN, strlen(name)); 248 event[pos++] = name_len; 249 memcpy(&event[pos], name, name_len); 250 pos += name_len; 251 int handle_len = btstack_min(PBAP_MAX_HANDLE_LEN, strlen(handle)); 252 event[pos++] = handle_len; 253 memcpy(&event[pos], handle, handle_len); 254 pos += handle_len; 255 event[1] = pos - 2; 256 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 257 } 258 259 static const uint8_t collon = (uint8_t) ':'; 260 261 static void pbap_handle_can_send_now(void){ 262 uint8_t path_element[20]; 263 uint16_t path_element_start; 264 uint16_t path_element_len; 265 uint8_t application_parameters[PBAP_MAX_PHONE_NUMBER_LEN + 10]; 266 uint8_t challenge_response[36]; 267 int i; 268 uint16_t phone_number_len; 269 270 MD5_CTX md5_ctx; 271 272 if (pbap_client->abort_operation){ 273 pbap_client->abort_operation = 0; 274 pbap_client->state = PBAP_CONNECTED; 275 goep_client_create_abort_request(pbap_client->goep_cid); 276 goep_client_execute(pbap_client->goep_cid); 277 return; 278 } 279 280 switch (pbap_client->state){ 281 case PBAP_W2_SEND_CONNECT_REQUEST: 282 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 283 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 284 // Mandatory if the PSE advertises a PbapSupportedFeatures attribute in its SDP record, else excluded. 285 if (goep_client_get_pbap_supported_features(pbap_client->goep_cid) != PBAP_FEATURES_NOT_PRESENT){ 286 application_parameters[0] = PBAP_APPLICATION_PARAMETER_PBAP_SUPPORTED_FEATURES; 287 application_parameters[1] = 4; 288 big_endian_store_32(application_parameters, 2, pbap_supported_features); 289 goep_client_add_header_application_parameters(pbap_client->goep_cid, 6, &application_parameters[0]); 290 } 291 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 292 goep_client_execute(pbap_client->goep_cid); 293 break; 294 case PBAP_W2_SEND_AUTHENTICATED_CONNECT: 295 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 296 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 297 // setup authentication challenge response 298 i = 0; 299 challenge_response[i++] = 0; // Tag Digest 300 challenge_response[i++] = 16; // Len 301 // calculate md5 302 MD5_Init(&md5_ctx); 303 MD5_Update(&md5_ctx, pbap_client->authentication_nonce, 16); 304 MD5_Update(&md5_ctx, &collon, 1); 305 MD5_Update(&md5_ctx, pbap_client->authentication_password, strlen(pbap_client->authentication_password)); 306 MD5_Final(&challenge_response[i], &md5_ctx); 307 i += 16; 308 challenge_response[i++] = 2; // Tag Nonce 309 challenge_response[i++] = 16; // Len 310 memcpy(&challenge_response[i], pbap_client->authentication_nonce, 16); 311 i += 16; 312 goep_client_add_header_challenge_response(pbap_client->goep_cid, i, challenge_response); 313 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 314 goep_client_execute(pbap_client->goep_cid); 315 break; 316 case PBAP_W2_SEND_DISCONNECT_REQUEST: 317 goep_client_create_disconnect_request(pbap_client->goep_cid); 318 pbap_client->state = PBAP_W4_DISCONNECT_RESPONSE; 319 goep_client_execute(pbap_client->goep_cid); 320 return; 321 case PBAP_W2_PULL_PHONEBOOK: 322 case PBAP_W2_GET_PHONEBOOK_SIZE: 323 goep_client_create_get_request(pbap_client->goep_cid); 324 if (pbap_client->request_number == 0){ 325 if (!pbap_client->flow_control_enabled){ 326 goep_client_add_header_srm_enable(pbap_client->goep_cid); 327 pbap_client->srm_state = SRM_W4_CONFIRM; 328 } 329 goep_client_add_header_name(pbap_client->goep_cid, pbap_client->phonebook_path); 330 goep_client_add_header_type(pbap_client->goep_cid, pbap_phonebook_type); 331 i = 0; 332 if (pbap_client->vcard_selector_supported){ 333 // vCard Selector 334 if (pbap_client->vcard_selector){ 335 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR; 336 application_parameters[i++] = 8; 337 memset(&application_parameters[i], 0, 4); 338 i += 4; 339 big_endian_store_32(application_parameters, i, pbap_client->vcard_selector); 340 i += 4; 341 } 342 // vCard Selector Operator 343 if (pbap_client->vcard_selector_operator != PBAP_VCARD_SELECTOR_OPERATOR_OR){ 344 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR_OPERATOR; 345 application_parameters[i++] = 1; 346 application_parameters[i++] = pbap_client->vcard_selector_operator; 347 } 348 } 349 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 350 // Regular TLV wih 1-byte len 351 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_MAX_LIST_COUNT; 352 application_parameters[i++] = 2; 353 big_endian_store_16(application_parameters, 2, 0); 354 i += 2; 355 } 356 if (i){ 357 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, application_parameters); 358 } 359 } 360 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 361 // state 362 pbap_client->state = PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE; 363 } else { 364 // state 365 pbap_client->state = PBAP_W4_PHONEBOOK; 366 } 367 // send packet 368 pbap_client->request_number++; 369 goep_client_execute(pbap_client->goep_cid); 370 break; 371 case PBAP_W2_GET_CARD_LIST: 372 goep_client_create_get_request(pbap_client->goep_cid); 373 if (pbap_client->request_number == 0){ 374 if (!pbap_client->flow_control_enabled){ 375 goep_client_add_header_srm_enable(pbap_client->goep_cid); 376 pbap_client->srm_state = SRM_W4_CONFIRM; 377 } 378 goep_client_add_header_name(pbap_client->goep_cid, pbap_client->phonebook_path); 379 goep_client_add_header_type(pbap_client->goep_cid, pbap_vcard_listing_type); 380 i = 0; 381 if (pbap_client->vcard_selector_supported){ 382 // vCard Selector 383 if (pbap_client->vcard_selector){ 384 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR; 385 application_parameters[i++] = 8; 386 memset(&application_parameters[i], 0, 4); 387 i += 4; 388 big_endian_store_32(application_parameters, i, pbap_client->vcard_selector); 389 i += 4; 390 } 391 // vCard Selector Operator 392 if (pbap_client->vcard_selector_operator != PBAP_VCARD_SELECTOR_OPERATOR_OR){ 393 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR_OPERATOR; 394 application_parameters[i++] = 1; 395 application_parameters[i++] = pbap_client->vcard_selector_operator; 396 } 397 } 398 if (pbap_client->phone_number){ 399 // Search by phpone number 400 phone_number_len = btstack_min(PBAP_MAX_PHONE_NUMBER_LEN, strlen(pbap_client->phone_number)); 401 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_VALUE; 402 application_parameters[i++] = phone_number_len; 403 memcpy(&application_parameters[i], pbap_client->phone_number, phone_number_len); 404 i += phone_number_len; 405 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_PROPERTY; 406 application_parameters[i++] = 1; 407 application_parameters[i++] = 0x01; // Number 408 } 409 if (i){ 410 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 411 } 412 } 413 // send packet 414 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 415 pbap_client->request_number++; 416 goep_client_execute(pbap_client->goep_cid); 417 break; 418 case PBAP_W2_GET_CARD_ENTRY: 419 goep_client_create_get_request(pbap_client->goep_cid); 420 if (pbap_client->request_number == 0){ 421 if (!pbap_client->flow_control_enabled){ 422 goep_client_add_header_srm_enable(pbap_client->goep_cid); 423 pbap_client->srm_state = SRM_W4_CONFIRM; 424 } 425 goep_client_add_header_name(pbap_client->goep_cid, pbap_client->vcard_name); 426 goep_client_add_header_type(pbap_client->goep_cid, pbap_vcard_entry_type); 427 i = 0; 428 if (i){ 429 // TODO: support property selector 430 // TODO: support format 431 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 432 } 433 pbap_client->state = PBAP_W4_GET_CARD_ENTRY_COMPLETE; 434 } 435 // send packet 436 pbap_client->request_number++; 437 goep_client_execute(pbap_client->goep_cid); 438 break; 439 case PBAP_W2_SET_PATH_ROOT: 440 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 441 goep_client_add_header_name(pbap_client->goep_cid, ""); 442 // state 443 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 444 // send packet 445 goep_client_execute(pbap_client->goep_cid); 446 break; 447 case PBAP_W2_SET_PATH_ELEMENT: 448 // find '/' or '\0' 449 path_element_start = pbap_client->set_path_offset; 450 while (pbap_client->current_folder[pbap_client->set_path_offset] != '\0' && 451 pbap_client->current_folder[pbap_client->set_path_offset] != '/'){ 452 pbap_client->set_path_offset++; 453 } 454 path_element_len = pbap_client->set_path_offset-path_element_start; 455 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 456 path_element[path_element_len] = 0; 457 458 // skip / 459 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 460 pbap_client->set_path_offset++; 461 } 462 463 // done? 464 int done = pbap_client->current_folder[pbap_client->set_path_offset] == '\0'; 465 466 // status 467 log_info("Path element '%s', done %u", path_element, done); 468 469 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 470 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 471 // state 472 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 473 // send packet 474 goep_client_execute(pbap_client->goep_cid); 475 break; 476 default: 477 break; 478 } 479 } 480 481 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 482 // printf("Challenge: "); 483 // printf_hexdump(challenge_data, challenge_len); 484 int i; 485 // uint8_t charset_code = 0; 486 for (i=0 ; i<challenge_len ; ){ 487 int tag = challenge_data[i]; 488 int len = challenge_data[i + 1]; 489 i += 2; 490 switch (tag) { 491 case 0: 492 if (len != 0x10) { 493 log_error("Invalid OBEX digest len %u", len); 494 return; 495 } 496 memcpy(context->authentication_nonce, &challenge_data[i], 16); 497 // printf("Nonce: "); 498 // printf_hexdump(context->authentication_nonce, 16); 499 break; 500 case 1: 501 context->authentication_options = challenge_data[i]; 502 // printf("Options %u\n", context->authentication_options); 503 break; 504 case 2: 505 // TODO: handle charset 506 // charset_code = challenge_data[i]; 507 break; 508 } 509 i += len; 510 } 511 } 512 513 static void pbap_process_srm_headers(pbap_client_t * context, uint8_t *packet, uint16_t size){ 514 515 if (packet[0] != OBEX_RESP_CONTINUE) return; 516 517 // get SRM and SRMP Headers 518 int srm_value = OBEX_SRM_DISABLE; 519 int srmp_value = OBEX_SRMP_NEXT; 520 obex_iterator_t it; 521 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)){ 522 uint8_t hi = obex_iterator_get_hi(&it); 523 uint16_t data_len = obex_iterator_get_data_len(&it); 524 const uint8_t * data = data = obex_iterator_get_data(&it); 525 switch (hi){ 526 case OBEX_HEADER_SINGLE_RESPONSE_MODE: 527 if (data_len != 1) break; 528 srm_value = *data; 529 break; 530 case OBEX_HEADER_SINGLE_RESPONSE_MODE_PARAMETER: 531 if (data_len != 1) break; 532 srmp_value = *data; 533 break; 534 default: 535 break; 536 } 537 } 538 539 // Update SRM state based on SRM haders 540 switch (context->srm_state){ 541 case SRM_W4_CONFIRM: 542 switch (srm_value){ 543 case OBEX_SRM_ENABLE: 544 switch (srmp_value){ 545 case OBEX_SRMP_WAIT: 546 context->srm_state = SRM_ENABLED_BUT_WAITING; 547 break; 548 default: 549 context->srm_state = SRM_ENABLED; 550 break; 551 } 552 break; 553 default: 554 context->srm_state = SRM_DISABLED; 555 break; 556 } 557 break; 558 case SRM_ENABLED_BUT_WAITING: 559 switch (srmp_value){ 560 case OBEX_SRMP_WAIT: 561 context->srm_state = SRM_ENABLED_BUT_WAITING; 562 break; 563 default: 564 context->srm_state = SRM_ENABLED; 565 break; 566 } 567 break; 568 default: 569 break; 570 } 571 log_info("SRM state %u", context->srm_state); 572 } 573 574 static void pbap_client_process_vcard_listing(uint8_t *packet, uint16_t size){ 575 obex_iterator_t it; 576 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)){ 577 uint8_t hi = obex_iterator_get_hi(&it); 578 if (hi == OBEX_HEADER_END_OF_BODY || 579 hi == OBEX_HEADER_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 while (data_len--){ 590 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 591 switch (r){ 592 case YXML_ELEMSTART: 593 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 594 break; 595 case YXML_ELEMEND: 596 if (card_found){ 597 pbap_client_emit_card_result_event(pbap_client, name, handle); 598 } 599 card_found = 0; 600 break; 601 case YXML_ATTRSTART: 602 if (!card_found) break; 603 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 604 name_found = 1; 605 name[0] = 0; 606 break; 607 } 608 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 609 handle_found = 1; 610 handle[0] = 0; 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 } 638 } 639 640 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 641 642 UNUSED(channel); // ok: there is no channel 643 UNUSED(size); // ok: handling own geop events 644 645 obex_iterator_t it; 646 uint8_t status; 647 int wait_for_user = 0; 648 switch (packet_type){ 649 case HCI_EVENT_PACKET: 650 switch (hci_event_packet_get_type(packet)) { 651 case HCI_EVENT_GOEP_META: 652 switch (hci_event_goep_meta_get_subevent_code(packet)){ 653 case GOEP_SUBEVENT_CONNECTION_OPENED: 654 status = goep_subevent_connection_opened_get_status(packet); 655 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 656 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 657 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 658 if (status){ 659 log_info("pbap: connection failed %u", status); 660 pbap_client->state = PBAP_INIT; 661 pbap_client_emit_connected_event(pbap_client, status); 662 } else { 663 log_info("pbap: connection established"); 664 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 665 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 666 goep_client_request_can_send_now(pbap_client->goep_cid); 667 } 668 break; 669 case GOEP_SUBEVENT_CONNECTION_CLOSED: 670 if (pbap_client->state != PBAP_CONNECTED){ 671 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 672 } 673 pbap_client->state = PBAP_INIT; 674 pbap_client_emit_connection_closed_event(pbap_client); 675 break; 676 case GOEP_SUBEVENT_CAN_SEND_NOW: 677 pbap_handle_can_send_now(); 678 break; 679 } 680 break; 681 default: 682 break; 683 } 684 break; 685 case GOEP_DATA_PACKET: 686 // TODO: handle chunked data 687 // obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 688 switch (pbap_client->state){ 689 case PBAP_W4_CONNECT_RESPONSE: 690 switch (packet[0]){ 691 case OBEX_RESP_SUCCESS: 692 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)){ 693 uint8_t hi = obex_iterator_get_hi(&it); 694 if (hi == OBEX_HEADER_CONNECTION_ID){ 695 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 696 } 697 } 698 pbap_client->state = PBAP_CONNECTED; 699 pbap_client->vcard_selector_supported = pbap_supported_features & goep_client_get_pbap_supported_features(pbap_client->goep_cid) & PBAP_SUPPORTED_FEATURES_VCARD_SELECTING; 700 pbap_client_emit_connected_event(pbap_client, 0); 701 break; 702 case OBEX_RESP_UNAUTHORIZED: 703 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)){ 704 uint8_t hi = obex_iterator_get_hi(&it); 705 if (hi == OBEX_HEADER_AUTHENTICATION_CHALLENGE){ 706 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 707 } 708 } 709 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 710 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 711 break; 712 default: 713 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 714 pbap_client->state = PBAP_INIT; 715 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 716 break; 717 } 718 break; 719 case PBAP_W4_DISCONNECT_RESPONSE: 720 goep_client_disconnect(pbap_client->goep_cid); 721 break; 722 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 723 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 724 if (packet[0] == OBEX_RESP_SUCCESS){ 725 // more path? 726 if (pbap_client->current_folder[pbap_client->set_path_offset]){ 727 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 728 goep_client_request_can_send_now(pbap_client->goep_cid); 729 } else { 730 pbap_client->current_folder = NULL; 731 pbap_client->state = PBAP_CONNECTED; 732 pbap_client_emit_operation_complete_event(pbap_client, 0); 733 } 734 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 735 pbap_client->state = PBAP_CONNECTED; 736 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 737 } else { 738 pbap_client->state = PBAP_CONNECTED; 739 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 740 } 741 break; 742 case PBAP_W4_PHONEBOOK: 743 pbap_client->flow_next_triggered = 0; 744 wait_for_user = 0; 745 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)){ 746 uint8_t hi = obex_iterator_get_hi(&it); 747 uint16_t data_len = obex_iterator_get_data_len(&it); 748 const uint8_t * data = data = obex_iterator_get_data(&it); 749 switch (hi){ 750 case OBEX_HEADER_BODY: 751 case OBEX_HEADER_END_OF_BODY: 752 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 753 wait_for_user++; 754 if (wait_for_user > 1){ 755 log_error("wait_for_user %u", wait_for_user); 756 } 757 break; 758 default: 759 break; 760 } 761 } 762 switch(packet[0]){ 763 case OBEX_RESP_CONTINUE: 764 pbap_process_srm_headers(pbap_client, packet, size); 765 if (pbap_client->srm_state == SRM_ENABLED) break; 766 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 767 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 768 goep_client_request_can_send_now(pbap_client->goep_cid); 769 } 770 break; 771 case OBEX_RESP_SUCCESS: 772 pbap_client->state = PBAP_CONNECTED; 773 pbap_client_emit_operation_complete_event(pbap_client, 0); 774 break; 775 default: 776 log_info("unexpected response 0x%02x", packet[0]); 777 pbap_client->state = PBAP_CONNECTED; 778 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 779 break; 780 } 781 break; 782 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 783 pbap_client->state = PBAP_CONNECTED; 784 if (packet[0] == OBEX_RESP_SUCCESS){ 785 int have_size = 0; 786 uint16_t phonebook_size; 787 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)){ 788 uint8_t hi = obex_iterator_get_hi(&it); 789 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 790 uint16_t data_len = obex_iterator_get_data_len(&it); 791 const uint8_t * data = obex_iterator_get_data(&it); 792 // iterate over application headers (TLV with 1 bytes len) 793 unsigned int i = 0; 794 while (i<data_len){ 795 uint8_t tag = data[i++]; 796 uint8_t len = data[i++]; 797 if (tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE && len == 2){ 798 have_size = 1; 799 phonebook_size = big_endian_read_16(data, i); 800 } 801 i+=len; 802 } 803 } 804 } 805 if (have_size){ 806 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 807 break; 808 } 809 } 810 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 811 break; 812 case PBAP_W4_GET_CARD_LIST_COMPLETE: 813 switch (packet[0]){ 814 case OBEX_RESP_CONTINUE: 815 // process data 816 pbap_client_process_vcard_listing(packet, size); 817 // handle continue 818 pbap_process_srm_headers(pbap_client, packet, size); 819 if (pbap_client->srm_state == SRM_ENABLED) break; 820 pbap_client->state = PBAP_W2_GET_CARD_LIST; 821 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 822 goep_client_request_can_send_now(pbap_client->goep_cid); 823 } 824 break; 825 case OBEX_RESP_SUCCESS: 826 // process data 827 pbap_client_process_vcard_listing(packet, size); 828 // done 829 pbap_client->state = PBAP_CONNECTED; 830 pbap_client_emit_operation_complete_event(pbap_client, 0); 831 break; 832 case OBEX_RESP_NOT_ACCEPTABLE: 833 pbap_client->state = PBAP_CONNECTED; 834 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 835 break; 836 default: 837 log_info("unexpected response 0x%02x", packet[0]); 838 pbap_client->state = PBAP_CONNECTED; 839 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 840 break; 841 } 842 break; 843 case PBAP_W4_GET_CARD_ENTRY_COMPLETE: 844 switch (packet[0]){ 845 case OBEX_RESP_CONTINUE: 846 pbap_process_srm_headers(pbap_client, packet, size); 847 if (pbap_client->srm_state == SRM_ENABLED) break; 848 pbap_client->state = PBAP_W2_GET_CARD_ENTRY; 849 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 850 goep_client_request_can_send_now(pbap_client->goep_cid); 851 } 852 break; 853 case OBEX_RESP_SUCCESS: 854 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)){ 855 uint8_t hi = obex_iterator_get_hi(&it); 856 if (hi == OBEX_HEADER_END_OF_BODY || 857 hi == OBEX_HEADER_BODY){ 858 // uint16_t data_len = obex_iterator_get_data_len(&it); 859 // const uint8_t * data = obex_iterator_get_data(&it); 860 // now try parsing it 861 } 862 } 863 pbap_client->state = PBAP_CONNECTED; 864 pbap_client_emit_operation_complete_event(pbap_client, 0); 865 break; 866 case OBEX_RESP_NOT_ACCEPTABLE: 867 pbap_client->state = PBAP_CONNECTED; 868 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 869 break; 870 default: 871 log_info("unexpected response 0x%02x", packet[0]); 872 pbap_client->state = PBAP_CONNECTED; 873 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 874 break; 875 } 876 break; 877 default: 878 break; 879 } 880 break; 881 default: 882 break; 883 } 884 } 885 886 void pbap_client_init(void){ 887 memset(pbap_client, 0, sizeof(pbap_client_t)); 888 pbap_client->state = PBAP_INIT; 889 pbap_client->cid = 1; 890 } 891 892 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 893 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 894 895 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 896 pbap_client->client_handler = handler; 897 pbap_client->vcard_selector = 0; 898 pbap_client->vcard_selector_operator = PBAP_VCARD_SELECTOR_OPERATOR_OR; 899 900 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 901 *out_cid = pbap_client->cid; 902 if (err) return err; 903 return 0; 904 } 905 906 uint8_t pbap_disconnect(uint16_t pbap_cid){ 907 UNUSED(pbap_cid); 908 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 909 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 910 goep_client_request_can_send_now(pbap_client->goep_cid); 911 return 0; 912 } 913 914 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid, const char * path){ 915 UNUSED(pbap_cid); 916 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 917 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 918 pbap_client->phonebook_path = path; 919 pbap_client->request_number = 0; 920 goep_client_request_can_send_now(pbap_client->goep_cid); 921 return 0; 922 } 923 924 uint8_t pbap_pull_phonebook(uint16_t pbap_cid, const char * path){ 925 UNUSED(pbap_cid); 926 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 927 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 928 pbap_client->phonebook_path = path; 929 pbap_client->request_number = 0; 930 goep_client_request_can_send_now(pbap_client->goep_cid); 931 return 0; 932 } 933 934 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 935 UNUSED(pbap_cid); 936 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 937 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 938 pbap_client->current_folder = path; 939 pbap_client->set_path_offset = 0; 940 goep_client_request_can_send_now(pbap_client->goep_cid); 941 return 0; 942 } 943 944 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 945 UNUSED(pbap_cid); 946 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 947 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 948 pbap_client->authentication_password = password; 949 goep_client_request_can_send_now(pbap_client->goep_cid); 950 return 0; 951 } 952 953 uint8_t pbap_pull_vcard_listing(uint16_t pbap_cid, const char * path){ 954 UNUSED(pbap_cid); 955 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 956 pbap_client->state = PBAP_W2_GET_CARD_LIST; 957 pbap_client->phonebook_path = path; 958 pbap_client->phone_number = NULL; 959 pbap_client->request_number = 0; 960 goep_client_request_can_send_now(pbap_client->goep_cid); 961 return 0; 962 } 963 964 uint8_t pbap_pull_vcard_entry(uint16_t pbap_cid, const char * path){ 965 UNUSED(pbap_cid); 966 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 967 pbap_client->state = PBAP_W2_GET_CARD_ENTRY; 968 // pbap_client->phonebook_path = NULL; 969 // pbap_client->phone_number = NULL; 970 pbap_client->vcard_name = path; 971 pbap_client->request_number = 0; 972 goep_client_request_can_send_now(pbap_client->goep_cid); 973 return 0; 974 } 975 976 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 977 UNUSED(pbap_cid); 978 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 979 pbap_client->state = PBAP_W2_GET_CARD_LIST; 980 pbap_client->phonebook_path = pbap_vcard_listing_name; 981 pbap_client->phone_number = phone_number; 982 pbap_client->request_number = 0; 983 goep_client_request_can_send_now(pbap_client->goep_cid); 984 return 0; 985 } 986 987 uint8_t pbap_abort(uint16_t pbap_cid){ 988 UNUSED(pbap_cid); 989 log_info("abort current operation, state 0x%02x", pbap_client->state); 990 pbap_client->abort_operation = 1; 991 goep_client_request_can_send_now(pbap_client->goep_cid); 992 return 0; 993 } 994 995 uint8_t pbap_next_packet(uint16_t pbap_cid){ 996 // log_info("pbap_next_packet, state %x", pbap_client->state); 997 UNUSED(pbap_cid); 998 if (!pbap_client->flow_control_enabled) return 0; 999 switch (pbap_client->state){ 1000 case PBAP_W2_PULL_PHONEBOOK: 1001 goep_client_request_can_send_now(pbap_client->goep_cid); 1002 break; 1003 case PBAP_W4_PHONEBOOK: 1004 pbap_client->flow_next_triggered = 1; 1005 break; 1006 default: 1007 break; 1008 } 1009 return 0; 1010 } 1011 1012 uint8_t pbap_set_flow_control_mode(uint16_t pbap_cid, int enable){ 1013 UNUSED(pbap_cid); 1014 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 1015 pbap_client->flow_control_enabled = enable; 1016 return 0; 1017 } 1018 1019 uint8_t pbap_set_vcard_selector(uint16_t pbap_cid, uint32_t vcard_selector){ 1020 UNUSED(pbap_cid); 1021 pbap_client->vcard_selector = vcard_selector; 1022 return 0; 1023 } 1024 1025 uint8_t pbap_set_vcard_selector_operator(uint16_t pbap_cid, int vcard_selector_operator){ 1026 UNUSED(pbap_cid); 1027 pbap_client->vcard_selector_operator = vcard_selector_operator; 1028 return 0; 1029 } 1030