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 82 typedef enum { 83 PBAP_INIT = 0, 84 PBAP_W4_GOEP_CONNECTION, 85 PBAP_W2_SEND_CONNECT_REQUEST, 86 PBAP_W4_CONNECT_RESPONSE, 87 PBAP_W4_USER_AUTHENTICATION, 88 PBAP_W2_SEND_AUTHENTICATED_CONNECT, 89 PBAP_CONNECT_RESPONSE_RECEIVED, 90 PBAP_CONNECTED, 91 // 92 PBAP_W2_SEND_DISCONNECT_REQUEST, 93 PBAP_W4_DISCONNECT_RESPONSE, 94 // 95 PBAP_W2_PULL_PHONEBOOK, 96 PBAP_W4_PHONEBOOK, 97 PBAP_W2_SET_PATH_ROOT, 98 PBAP_W4_SET_PATH_ROOT_COMPLETE, 99 PBAP_W2_SET_PATH_ELEMENT, 100 PBAP_W4_SET_PATH_ELEMENT_COMPLETE, 101 PBAP_W2_GET_PHONEBOOK_SIZE, 102 PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE, 103 // - pull vacard liast 104 PBAP_W2_GET_CARD_LIST, 105 PBAP_W4_GET_CARD_LIST_COMPLETE, 106 // - pull vcard entry 107 PBAP_W2_GET_CARD_ENTRY, 108 PBAP_W4_GET_CARD_ENTRY_COMPLETE 109 110 } pbap_state_t; 111 112 typedef enum { 113 SRM_DISABLED, 114 SRM_W4_CONFIRM, 115 SRM_ENABLED_BUT_WAITING, 116 SRM_ENABLED 117 } srm_state_t; 118 119 typedef struct pbap_client { 120 pbap_state_t state; 121 uint16_t cid; 122 bd_addr_t bd_addr; 123 hci_con_handle_t con_handle; 124 uint8_t incoming; 125 uint16_t goep_cid; 126 btstack_packet_handler_t client_handler; 127 int request_number; 128 srm_state_t srm_state; 129 const char * current_folder; 130 const char * phone_number; 131 const char * phonebook_path; 132 const char * vcard_name; 133 uint16_t set_path_offset; 134 /* vcard selector / operator */ 135 uint32_t vcard_selector; 136 uint8_t vcard_selector_operator; 137 uint8_t vcard_selector_supported; 138 /* abort */ 139 uint8_t abort_operation; 140 /* authentication */ 141 uint8_t authentication_options; 142 uint16_t authentication_nonce[16]; 143 const char * authentication_password; 144 /* xml parser */ 145 yxml_t xml_parser; 146 uint8_t xml_buffer[50]; 147 /* flow control mode */ 148 uint8_t flow_control_enabled; 149 uint8_t flow_next_triggered; 150 } pbap_client_t; 151 152 static pbap_client_t _pbap_client; 153 static pbap_client_t * pbap_client = &_pbap_client; 154 155 static void pbap_client_emit_connected_event(pbap_client_t * context, uint8_t status){ 156 uint8_t event[15]; 157 int pos = 0; 158 event[pos++] = HCI_EVENT_PBAP_META; 159 pos++; // skip len 160 event[pos++] = PBAP_SUBEVENT_CONNECTION_OPENED; 161 little_endian_store_16(event,pos,context->cid); 162 pos+=2; 163 event[pos++] = status; 164 memcpy(&event[pos], context->bd_addr, 6); 165 pos += 6; 166 little_endian_store_16(event,pos,context->con_handle); 167 pos += 2; 168 event[pos++] = context->incoming; 169 event[1] = pos - 2; 170 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 171 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 172 } 173 174 static void pbap_client_emit_connection_closed_event(pbap_client_t * context){ 175 uint8_t event[5]; 176 int pos = 0; 177 event[pos++] = HCI_EVENT_PBAP_META; 178 pos++; // skip len 179 event[pos++] = PBAP_SUBEVENT_CONNECTION_CLOSED; 180 little_endian_store_16(event,pos,context->cid); 181 pos+=2; 182 event[1] = pos - 2; 183 if (pos != sizeof(event)) log_error("pbap_client_emit_connection_closed_event size %u", pos); 184 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 185 } 186 187 static void pbap_client_emit_operation_complete_event(pbap_client_t * context, uint8_t status){ 188 uint8_t event[6]; 189 int pos = 0; 190 event[pos++] = HCI_EVENT_PBAP_META; 191 pos++; // skip len 192 event[pos++] = PBAP_SUBEVENT_OPERATION_COMPLETED; 193 little_endian_store_16(event,pos,context->cid); 194 pos+=2; 195 event[pos++]= status; 196 event[1] = pos - 2; 197 if (pos != sizeof(event)) log_error("pbap_client_emit_can_send_now_event size %u", pos); 198 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 199 } 200 201 static void pbap_client_emit_phonebook_size_event(pbap_client_t * context, uint8_t status, uint16_t phonebook_size){ 202 uint8_t event[8]; 203 int pos = 0; 204 event[pos++] = HCI_EVENT_PBAP_META; 205 pos++; // skip len 206 event[pos++] = PBAP_SUBEVENT_PHONEBOOK_SIZE; 207 little_endian_store_16(event,pos,context->cid); 208 pos+=2; 209 event[pos++] = status; 210 little_endian_store_16(event,pos, phonebook_size); 211 pos+=2; 212 event[1] = pos - 2; 213 if (pos != sizeof(event)) log_error("pbap_client_emit_phonebook_size_event size %u", pos); 214 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 215 } 216 217 static void pbap_client_emit_authentication_event(pbap_client_t * context, uint8_t options){ 218 // split options 219 uint8_t user_id_required = options & 1 ? 1 : 0; 220 uint8_t full_access = options & 2 ? 1 : 0; 221 222 uint8_t event[7]; 223 int pos = 0; 224 event[pos++] = HCI_EVENT_PBAP_META; 225 pos++; // skip len 226 event[pos++] = PBAP_SUBEVENT_AUTHENTICATION_REQUEST; 227 little_endian_store_16(event,pos,context->cid); 228 pos+=2; 229 event[pos++] = user_id_required; 230 event[pos++] = full_access; 231 if (pos != sizeof(event)) log_error("pbap_client_emit_authentication_event size %u", pos); 232 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 233 } 234 235 static void pbap_client_emit_card_result_event(pbap_client_t * context, const char * name, const char * handle){ 236 uint8_t event[5 + PBAP_MAX_NAME_LEN + PBAP_MAX_HANDLE_LEN]; 237 int pos = 0; 238 event[pos++] = HCI_EVENT_PBAP_META; 239 pos++; // skip len 240 event[pos++] = PBAP_SUBEVENT_CARD_RESULT; 241 little_endian_store_16(event,pos,context->cid); 242 pos+=2; 243 int name_len = btstack_min(PBAP_MAX_NAME_LEN, strlen(name)); 244 event[pos++] = name_len; 245 memcpy(&event[pos], name, name_len); 246 pos += name_len; 247 int handle_len = btstack_min(PBAP_MAX_HANDLE_LEN, strlen(handle)); 248 event[pos++] = handle_len; 249 memcpy(&event[pos], handle, handle_len); 250 pos += handle_len; 251 event[1] = pos - 2; 252 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 253 } 254 255 static const uint8_t collon = (uint8_t) ':'; 256 257 static void pbap_handle_can_send_now(void){ 258 uint8_t path_element[20]; 259 uint16_t path_element_start; 260 uint16_t path_element_len; 261 uint8_t application_parameters[PBAP_MAX_PHONE_NUMBER_LEN + 10]; 262 uint8_t challenge_response[36]; 263 int i; 264 uint16_t phone_number_len; 265 266 MD5_CTX md5_ctx; 267 268 if (pbap_client->abort_operation){ 269 pbap_client->abort_operation = 0; 270 pbap_client->state = PBAP_CONNECTED; 271 goep_client_create_abort_request(pbap_client->goep_cid); 272 goep_client_execute(pbap_client->goep_cid); 273 return; 274 } 275 276 switch (pbap_client->state){ 277 case PBAP_W2_SEND_CONNECT_REQUEST: 278 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 279 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 280 // Mandatory if the PSE advertises a PbapSupportedFeatures attribute in its SDP record, else excluded. 281 if (goep_client_get_pbap_supported_features(pbap_client->goep_cid) != PBAP_FEATURES_NOT_PRESENT){ 282 application_parameters[0] = PBAP_APPLICATION_PARAMETER_PBAP_SUPPORTED_FEATURES; 283 application_parameters[1] = 4; 284 big_endian_store_32(application_parameters, 2, pbap_supported_features); 285 goep_client_add_header_application_parameters(pbap_client->goep_cid, 6, &application_parameters[0]); 286 } 287 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 288 goep_client_execute(pbap_client->goep_cid); 289 break; 290 case PBAP_W2_SEND_AUTHENTICATED_CONNECT: 291 goep_client_create_connect_request(pbap_client->goep_cid, OBEX_VERSION, 0, OBEX_MAX_PACKETLEN_DEFAULT); 292 goep_client_add_header_target(pbap_client->goep_cid, 16, pbap_uuid); 293 // setup authentication challenge response 294 i = 0; 295 challenge_response[i++] = 0; // Tag Digest 296 challenge_response[i++] = 16; // Len 297 // calculate md5 298 MD5_Init(&md5_ctx); 299 MD5_Update(&md5_ctx, pbap_client->authentication_nonce, 16); 300 MD5_Update(&md5_ctx, &collon, 1); 301 MD5_Update(&md5_ctx, pbap_client->authentication_password, strlen(pbap_client->authentication_password)); 302 MD5_Final(&challenge_response[i], &md5_ctx); 303 i += 16; 304 challenge_response[i++] = 2; // Tag Nonce 305 challenge_response[i++] = 16; // Len 306 memcpy(&challenge_response[i], pbap_client->authentication_nonce, 16); 307 i += 16; 308 goep_client_add_header_challenge_response(pbap_client->goep_cid, i, challenge_response); 309 pbap_client->state = PBAP_W4_CONNECT_RESPONSE; 310 goep_client_execute(pbap_client->goep_cid); 311 break; 312 case PBAP_W2_SEND_DISCONNECT_REQUEST: 313 goep_client_create_disconnect_request(pbap_client->goep_cid); 314 pbap_client->state = PBAP_W4_DISCONNECT_RESPONSE; 315 goep_client_execute(pbap_client->goep_cid); 316 return; 317 case PBAP_W2_PULL_PHONEBOOK: 318 case PBAP_W2_GET_PHONEBOOK_SIZE: 319 goep_client_create_get_request(pbap_client->goep_cid); 320 if (pbap_client->request_number == 0){ 321 if (!pbap_client->flow_control_enabled){ 322 goep_client_add_header_srm_enable(pbap_client->goep_cid); 323 pbap_client->srm_state = SRM_W4_CONFIRM; 324 } 325 goep_client_add_header_name(pbap_client->goep_cid, pbap_client->phonebook_path); 326 goep_client_add_header_type(pbap_client->goep_cid, pbap_phonebook_type); 327 i = 0; 328 if (pbap_client->vcard_selector_supported){ 329 // vCard Selector 330 if (pbap_client->vcard_selector){ 331 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR; 332 application_parameters[i++] = 8; 333 memset(&application_parameters[i], 0, 4); 334 i += 4; 335 big_endian_store_32(application_parameters, i, pbap_client->vcard_selector); 336 i += 4; 337 } 338 // vCard Selector Operator 339 if (pbap_client->vcard_selector_operator != PBAP_VCARD_SELECTOR_OPERATOR_OR){ 340 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR_OPERATOR; 341 application_parameters[i++] = 1; 342 application_parameters[i++] = pbap_client->vcard_selector_operator; 343 } 344 } 345 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 346 // Regular TLV wih 1-byte len 347 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_MAX_LIST_COUNT; 348 application_parameters[i++] = 2; 349 big_endian_store_16(application_parameters, 2, 0); 350 i += 2; 351 } 352 if (i){ 353 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, application_parameters); 354 } 355 } 356 if (pbap_client->state == PBAP_W2_GET_PHONEBOOK_SIZE){ 357 // state 358 pbap_client->state = PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE; 359 } else { 360 // state 361 pbap_client->state = PBAP_W4_PHONEBOOK; 362 } 363 // send packet 364 pbap_client->request_number++; 365 goep_client_execute(pbap_client->goep_cid); 366 break; 367 case PBAP_W2_GET_CARD_LIST: 368 goep_client_create_get_request(pbap_client->goep_cid); 369 if (pbap_client->request_number == 0){ 370 if (!pbap_client->flow_control_enabled){ 371 goep_client_add_header_srm_enable(pbap_client->goep_cid); 372 pbap_client->srm_state = SRM_W4_CONFIRM; 373 } 374 goep_client_add_header_name(pbap_client->goep_cid, pbap_client->phonebook_path); 375 goep_client_add_header_type(pbap_client->goep_cid, pbap_vcard_listing_type); 376 i = 0; 377 if (pbap_client->vcard_selector_supported){ 378 // vCard Selector 379 if (pbap_client->vcard_selector){ 380 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR; 381 application_parameters[i++] = 8; 382 memset(&application_parameters[i], 0, 4); 383 i += 4; 384 big_endian_store_32(application_parameters, i, pbap_client->vcard_selector); 385 i += 4; 386 } 387 // vCard Selector Operator 388 if (pbap_client->vcard_selector_operator != PBAP_VCARD_SELECTOR_OPERATOR_OR){ 389 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_VCARD_SELECTOR_OPERATOR; 390 application_parameters[i++] = 1; 391 application_parameters[i++] = pbap_client->vcard_selector_operator; 392 } 393 } 394 if (pbap_client->phone_number){ 395 // Search by phpone number 396 phone_number_len = btstack_min(PBAP_MAX_PHONE_NUMBER_LEN, strlen(pbap_client->phone_number)); 397 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_VALUE; 398 application_parameters[i++] = phone_number_len; 399 memcpy(&application_parameters[i], pbap_client->phone_number, phone_number_len); 400 i += phone_number_len; 401 application_parameters[i++] = PBAP_APPLICATION_PARAMETER_SEARCH_PROPERTY; 402 application_parameters[i++] = 1; 403 application_parameters[i++] = 0x01; // Number 404 } 405 if (i){ 406 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 407 } 408 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 409 } 410 // send packet 411 pbap_client->request_number++; 412 goep_client_execute(pbap_client->goep_cid); 413 break; 414 case PBAP_W2_GET_CARD_ENTRY: 415 goep_client_create_get_request(pbap_client->goep_cid); 416 if (pbap_client->request_number == 0){ 417 if (!pbap_client->flow_control_enabled){ 418 goep_client_add_header_srm_enable(pbap_client->goep_cid); 419 pbap_client->srm_state = SRM_W4_CONFIRM; 420 } 421 goep_client_add_header_name(pbap_client->goep_cid, pbap_client->vcard_name); 422 goep_client_add_header_type(pbap_client->goep_cid, pbap_vcard_entry_type); 423 i = 0; 424 if (i){ 425 // TODO: support property selector 426 // TODO: support format 427 goep_client_add_header_application_parameters(pbap_client->goep_cid, i, &application_parameters[0]); 428 } 429 pbap_client->state = PBAP_W4_GET_CARD_ENTRY_COMPLETE; 430 } 431 // send packet 432 pbap_client->request_number++; 433 goep_client_execute(pbap_client->goep_cid); 434 break; 435 case PBAP_W2_SET_PATH_ROOT: 436 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 437 goep_client_add_header_name(pbap_client->goep_cid, ""); 438 // state 439 pbap_client->state = PBAP_W4_SET_PATH_ROOT_COMPLETE; 440 // send packet 441 goep_client_execute(pbap_client->goep_cid); 442 break; 443 case PBAP_W2_SET_PATH_ELEMENT: 444 // find '/' or '\0' 445 path_element_start = pbap_client->set_path_offset; 446 while (pbap_client->current_folder[pbap_client->set_path_offset] != '\0' && 447 pbap_client->current_folder[pbap_client->set_path_offset] != '/'){ 448 pbap_client->set_path_offset++; 449 } 450 path_element_len = pbap_client->set_path_offset-path_element_start; 451 memcpy(path_element, &pbap_client->current_folder[path_element_start], path_element_len); 452 path_element[path_element_len] = 0; 453 454 // skip / 455 if (pbap_client->current_folder[pbap_client->set_path_offset] == '/'){ 456 pbap_client->set_path_offset++; 457 } 458 459 // detect end of path (after setting path_element) 460 if (pbap_client->current_folder[pbap_client->set_path_offset] == '\0'){ 461 pbap_client->current_folder = NULL; 462 } 463 464 log_info("Path element '%s', done %u", path_element, pbap_client->current_folder == NULL); 465 466 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 467 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 468 // state 469 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 470 // send packet 471 goep_client_execute(pbap_client->goep_cid); 472 break; 473 default: 474 break; 475 } 476 } 477 478 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 479 // printf("Challenge: "); 480 // printf_hexdump(challenge_data, challenge_len); 481 int i; 482 // uint8_t charset_code = 0; 483 for (i=0 ; i<challenge_len ; ){ 484 int tag = challenge_data[i]; 485 int len = challenge_data[i + 1]; 486 i += 2; 487 switch (tag) { 488 case 0: 489 if (len != 0x10) { 490 log_error("Invalid OBEX digest len %u", len); 491 return; 492 } 493 memcpy(context->authentication_nonce, &challenge_data[i], 16); 494 // printf("Nonce: "); 495 // printf_hexdump(context->authentication_nonce, 16); 496 break; 497 case 1: 498 context->authentication_options = challenge_data[i]; 499 // printf("Options %u\n", context->authentication_options); 500 break; 501 case 2: 502 // TODO: handle charset 503 // charset_code = challenge_data[i]; 504 break; 505 } 506 i += len; 507 } 508 } 509 510 static void pbap_process_srm_headers(pbap_client_t * context, uint8_t *packet, uint16_t size){ 511 512 if (packet[0] != OBEX_RESP_CONTINUE) return; 513 514 // get SRM and SRMP Headers 515 int srm_value = OBEX_SRM_DISABLE; 516 int srmp_value = OBEX_SRMP_NEXT; 517 obex_iterator_t it; 518 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)){ 519 uint8_t hi = obex_iterator_get_hi(&it); 520 uint16_t data_len = obex_iterator_get_data_len(&it); 521 const uint8_t * data = data = obex_iterator_get_data(&it); 522 switch (hi){ 523 case OBEX_HEADER_SINGLE_RESPONSE_MODE: 524 if (data_len != 1) break; 525 srm_value = *data; 526 break; 527 case OBEX_HEADER_SINGLE_RESPONSE_MODE_PARAMETER: 528 if (data_len != 1) break; 529 srmp_value = *data; 530 break; 531 default: 532 break; 533 } 534 } 535 536 // Update SRM state based on SRM haders 537 switch (context->srm_state){ 538 case SRM_W4_CONFIRM: 539 switch (srm_value){ 540 case OBEX_SRM_ENABLE: 541 switch (srmp_value){ 542 case OBEX_SRMP_WAIT: 543 context->srm_state = SRM_ENABLED_BUT_WAITING; 544 break; 545 default: 546 context->srm_state = SRM_ENABLED; 547 break; 548 } 549 break; 550 default: 551 context->srm_state = SRM_DISABLED; 552 break; 553 } 554 break; 555 case SRM_ENABLED_BUT_WAITING: 556 switch (srmp_value){ 557 case OBEX_SRMP_WAIT: 558 context->srm_state = SRM_ENABLED_BUT_WAITING; 559 break; 560 default: 561 context->srm_state = SRM_ENABLED; 562 break; 563 } 564 break; 565 default: 566 break; 567 } 568 log_info("SRM state %u", context->srm_state); 569 } 570 571 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 572 573 UNUSED(channel); // ok: there is no channel 574 UNUSED(size); // ok: handling own geop events 575 576 obex_iterator_t it; 577 uint8_t status; 578 int wait_for_user = 0; 579 switch (packet_type){ 580 case HCI_EVENT_PACKET: 581 switch (hci_event_packet_get_type(packet)) { 582 case HCI_EVENT_GOEP_META: 583 switch (hci_event_goep_meta_get_subevent_code(packet)){ 584 case GOEP_SUBEVENT_CONNECTION_OPENED: 585 status = goep_subevent_connection_opened_get_status(packet); 586 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 587 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 588 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 589 if (status){ 590 log_info("pbap: connection failed %u", status); 591 pbap_client->state = PBAP_INIT; 592 pbap_client_emit_connected_event(pbap_client, status); 593 } else { 594 log_info("pbap: connection established"); 595 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 596 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 597 goep_client_request_can_send_now(pbap_client->goep_cid); 598 } 599 break; 600 case GOEP_SUBEVENT_CONNECTION_CLOSED: 601 if (pbap_client->state != PBAP_CONNECTED){ 602 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 603 } 604 pbap_client->state = PBAP_INIT; 605 pbap_client_emit_connection_closed_event(pbap_client); 606 break; 607 case GOEP_SUBEVENT_CAN_SEND_NOW: 608 pbap_handle_can_send_now(); 609 break; 610 } 611 break; 612 default: 613 break; 614 } 615 break; 616 case GOEP_DATA_PACKET: 617 // TODO: handle chunked data 618 // obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 619 switch (pbap_client->state){ 620 case PBAP_W4_CONNECT_RESPONSE: 621 switch (packet[0]){ 622 case OBEX_RESP_SUCCESS: 623 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)){ 624 uint8_t hi = obex_iterator_get_hi(&it); 625 if (hi == OBEX_HEADER_CONNECTION_ID){ 626 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 627 } 628 } 629 pbap_client->state = PBAP_CONNECTED; 630 pbap_client->vcard_selector_supported = pbap_supported_features & goep_client_get_pbap_supported_features(pbap_client->goep_cid) & PBAP_SUPPORTED_FEATURES_VCARD_SELECTING; 631 pbap_client_emit_connected_event(pbap_client, 0); 632 break; 633 case OBEX_RESP_UNAUTHORIZED: 634 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)){ 635 uint8_t hi = obex_iterator_get_hi(&it); 636 if (hi == OBEX_HEADER_AUTHENTICATION_CHALLENGE){ 637 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 638 } 639 } 640 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 641 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 642 break; 643 default: 644 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 645 pbap_client->state = PBAP_INIT; 646 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 647 break; 648 } 649 break; 650 case PBAP_W4_DISCONNECT_RESPONSE: 651 goep_client_disconnect(pbap_client->goep_cid); 652 break; 653 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 654 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 655 log_info("set path root/path element complete, current folder %s, path offset %u", pbap_client->current_folder, pbap_client->set_path_offset); 656 if (packet[0] == OBEX_RESP_SUCCESS){ 657 if (pbap_client->current_folder){ 658 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 659 goep_client_request_can_send_now(pbap_client->goep_cid); 660 } else { 661 pbap_client->state = PBAP_CONNECTED; 662 pbap_client_emit_operation_complete_event(pbap_client, 0); 663 } 664 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 665 pbap_client->state = PBAP_CONNECTED; 666 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 667 } else { 668 pbap_client->state = PBAP_CONNECTED; 669 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 670 } 671 break; 672 case PBAP_W4_PHONEBOOK: 673 pbap_client->flow_next_triggered = 0; 674 wait_for_user = 0; 675 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)){ 676 uint8_t hi = obex_iterator_get_hi(&it); 677 uint16_t data_len = obex_iterator_get_data_len(&it); 678 const uint8_t * data = data = obex_iterator_get_data(&it); 679 switch (hi){ 680 case OBEX_HEADER_BODY: 681 case OBEX_HEADER_END_OF_BODY: 682 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 683 wait_for_user++; 684 if (wait_for_user > 1){ 685 log_error("wait_for_user %u", wait_for_user); 686 } 687 break; 688 default: 689 break; 690 } 691 } 692 switch(packet[0]){ 693 case OBEX_RESP_CONTINUE: 694 pbap_process_srm_headers(pbap_client, packet, size); 695 if (pbap_client->srm_state == SRM_ENABLED) break; 696 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 697 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 698 goep_client_request_can_send_now(pbap_client->goep_cid); 699 } 700 break; 701 case OBEX_RESP_SUCCESS: 702 pbap_client->state = PBAP_CONNECTED; 703 pbap_client_emit_operation_complete_event(pbap_client, 0); 704 break; 705 default: 706 log_info("unexpected response 0x%02x", packet[0]); 707 pbap_client->state = PBAP_CONNECTED; 708 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 709 break; 710 } 711 break; 712 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 713 pbap_client->state = PBAP_CONNECTED; 714 if (packet[0] == OBEX_RESP_SUCCESS){ 715 int have_size = 0; 716 uint16_t phonebook_size; 717 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)){ 718 uint8_t hi = obex_iterator_get_hi(&it); 719 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 720 uint16_t data_len = obex_iterator_get_data_len(&it); 721 const uint8_t * data = obex_iterator_get_data(&it); 722 // iterate over application headers (TLV with 1 bytes len) 723 unsigned int i = 0; 724 while (i<data_len){ 725 uint8_t tag = data[i++]; 726 uint8_t len = data[i++]; 727 if (tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE && len == 2){ 728 have_size = 1; 729 phonebook_size = big_endian_read_16(data, i); 730 } 731 i+=len; 732 } 733 } 734 } 735 if (have_size){ 736 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 737 break; 738 } 739 } 740 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 741 break; 742 case PBAP_W4_GET_CARD_LIST_COMPLETE: 743 switch (packet[0]){ 744 case OBEX_RESP_CONTINUE: 745 pbap_process_srm_headers(pbap_client, packet, size); 746 if (pbap_client->srm_state == SRM_ENABLED) break; 747 pbap_client->state = PBAP_W2_GET_CARD_LIST; 748 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 749 goep_client_request_can_send_now(pbap_client->goep_cid); 750 } 751 break; 752 case OBEX_RESP_SUCCESS: 753 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)){ 754 uint8_t hi = obex_iterator_get_hi(&it); 755 if (hi == OBEX_HEADER_END_OF_BODY){ 756 uint16_t data_len = obex_iterator_get_data_len(&it); 757 const uint8_t * data = obex_iterator_get_data(&it); 758 // now try parsing it 759 yxml_init(&pbap_client->xml_parser, pbap_client->xml_buffer, sizeof(pbap_client->xml_buffer)); 760 int card_found = 0; 761 int name_found = 0; 762 int handle_found = 0; 763 char name[PBAP_MAX_NAME_LEN]; 764 char handle[PBAP_MAX_HANDLE_LEN]; 765 name[0] = 0; 766 handle[0] = 0; 767 while (data_len--){ 768 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 769 switch (r){ 770 case YXML_ELEMSTART: 771 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 772 break; 773 case YXML_ELEMEND: 774 if (card_found){ 775 pbap_client_emit_card_result_event(pbap_client, name, handle); 776 } 777 card_found = 0; 778 break; 779 case YXML_ATTRSTART: 780 if (!card_found) break; 781 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 782 name_found = 1; 783 break; 784 } 785 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 786 handle_found = 1; 787 break; 788 } 789 break; 790 case YXML_ATTRVAL: 791 if (name_found) { 792 // "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." 793 if (strlen(name) + 4 + 1 >= sizeof(name)) break; 794 strcat(name, pbap_client->xml_parser.data); 795 break; 796 } 797 if (handle_found) { 798 // "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." 799 if (strlen(handle) + 4 + 1 >= sizeof(handle)) break; 800 strcat(handle, pbap_client->xml_parser.data); 801 break; 802 } 803 break; 804 case YXML_ATTREND: 805 name_found = 0; 806 handle_found = 0; 807 break; 808 default: 809 break; 810 } 811 } 812 } 813 // 814 pbap_client->state = PBAP_CONNECTED; 815 pbap_client_emit_operation_complete_event(pbap_client, 0); 816 } 817 break; 818 case OBEX_RESP_NOT_ACCEPTABLE: 819 pbap_client->state = PBAP_CONNECTED; 820 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 821 break; 822 default: 823 log_info("unexpected response 0x%02x", packet[0]); 824 pbap_client->state = PBAP_CONNECTED; 825 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 826 break; 827 } 828 break; 829 case PBAP_W4_GET_CARD_ENTRY_COMPLETE: 830 switch (packet[0]){ 831 case OBEX_RESP_CONTINUE: 832 pbap_process_srm_headers(pbap_client, packet, size); 833 if (pbap_client->srm_state == SRM_ENABLED) break; 834 pbap_client->state = PBAP_W2_GET_CARD_ENTRY; 835 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 836 goep_client_request_can_send_now(pbap_client->goep_cid); 837 } 838 break; 839 case OBEX_RESP_SUCCESS: 840 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)){ 841 uint8_t hi = obex_iterator_get_hi(&it); 842 if (hi == OBEX_HEADER_END_OF_BODY){ 843 // uint16_t data_len = obex_iterator_get_data_len(&it); 844 // const uint8_t * data = obex_iterator_get_data(&it); 845 // now try parsing it 846 } 847 } 848 pbap_client->state = PBAP_CONNECTED; 849 pbap_client_emit_operation_complete_event(pbap_client, 0); 850 break; 851 case OBEX_RESP_NOT_ACCEPTABLE: 852 pbap_client->state = PBAP_CONNECTED; 853 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 854 break; 855 default: 856 log_info("unexpected response 0x%02x", packet[0]); 857 pbap_client->state = PBAP_CONNECTED; 858 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 859 break; 860 } 861 break; 862 default: 863 break; 864 } 865 break; 866 default: 867 break; 868 } 869 } 870 871 void pbap_client_init(void){ 872 memset(pbap_client, 0, sizeof(pbap_client_t)); 873 pbap_client->state = PBAP_INIT; 874 pbap_client->cid = 1; 875 } 876 877 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 878 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 879 880 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 881 pbap_client->client_handler = handler; 882 pbap_client->vcard_selector = 0; 883 pbap_client->vcard_selector_operator = PBAP_VCARD_SELECTOR_OPERATOR_OR; 884 885 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 886 *out_cid = pbap_client->cid; 887 if (err) return err; 888 return 0; 889 } 890 891 uint8_t pbap_disconnect(uint16_t pbap_cid){ 892 UNUSED(pbap_cid); 893 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 894 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 895 goep_client_request_can_send_now(pbap_client->goep_cid); 896 return 0; 897 } 898 899 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid, const char * path){ 900 UNUSED(pbap_cid); 901 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 902 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 903 pbap_client->phonebook_path = path; 904 pbap_client->request_number = 0; 905 goep_client_request_can_send_now(pbap_client->goep_cid); 906 return 0; 907 } 908 909 uint8_t pbap_pull_phonebook(uint16_t pbap_cid, const char * path){ 910 UNUSED(pbap_cid); 911 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 912 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 913 pbap_client->phonebook_path = path; 914 pbap_client->request_number = 0; 915 goep_client_request_can_send_now(pbap_client->goep_cid); 916 return 0; 917 } 918 919 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 920 UNUSED(pbap_cid); 921 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 922 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 923 pbap_client->current_folder = path; 924 pbap_client->set_path_offset = 0; 925 goep_client_request_can_send_now(pbap_client->goep_cid); 926 return 0; 927 } 928 929 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 930 UNUSED(pbap_cid); 931 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 932 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 933 pbap_client->authentication_password = password; 934 goep_client_request_can_send_now(pbap_client->goep_cid); 935 return 0; 936 } 937 938 uint8_t pbap_pull_vcard_listing(uint16_t pbap_cid, const char * path){ 939 UNUSED(pbap_cid); 940 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 941 pbap_client->state = PBAP_W2_GET_CARD_LIST; 942 pbap_client->phonebook_path = path; 943 pbap_client->phone_number = NULL; 944 pbap_client->request_number = 0; 945 goep_client_request_can_send_now(pbap_client->goep_cid); 946 return 0; 947 } 948 949 uint8_t pbap_pull_vcard_entry(uint16_t pbap_cid, const char * path){ 950 UNUSED(pbap_cid); 951 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 952 pbap_client->state = PBAP_W2_GET_CARD_ENTRY; 953 // pbap_client->phonebook_path = NULL; 954 // pbap_client->phone_number = NULL; 955 pbap_client->vcard_name = path; 956 pbap_client->request_number = 0; 957 goep_client_request_can_send_now(pbap_client->goep_cid); 958 return 0; 959 } 960 961 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 962 UNUSED(pbap_cid); 963 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 964 pbap_client->state = PBAP_W2_GET_CARD_LIST; 965 pbap_client->phonebook_path = pbap_vcard_listing_name; 966 pbap_client->phone_number = phone_number; 967 pbap_client->request_number = 0; 968 goep_client_request_can_send_now(pbap_client->goep_cid); 969 return 0; 970 } 971 972 uint8_t pbap_abort(uint16_t pbap_cid){ 973 UNUSED(pbap_cid); 974 log_info("abort current operation, state 0x%02x", pbap_client->state); 975 pbap_client->abort_operation = 1; 976 goep_client_request_can_send_now(pbap_client->goep_cid); 977 return 0; 978 } 979 980 uint8_t pbap_next_packet(uint16_t pbap_cid){ 981 // log_info("pbap_next_packet, state %x", pbap_client->state); 982 UNUSED(pbap_cid); 983 if (!pbap_client->flow_control_enabled) return 0; 984 switch (pbap_client->state){ 985 case PBAP_W2_PULL_PHONEBOOK: 986 goep_client_request_can_send_now(pbap_client->goep_cid); 987 break; 988 case PBAP_W4_PHONEBOOK: 989 pbap_client->flow_next_triggered = 1; 990 break; 991 default: 992 break; 993 } 994 return 0; 995 } 996 997 uint8_t pbap_set_flow_control_mode(uint16_t pbap_cid, int enable){ 998 UNUSED(pbap_cid); 999 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 1000 pbap_client->flow_control_enabled = enable; 1001 return 0; 1002 } 1003 1004 uint8_t pbap_set_vcard_selector(uint16_t pbap_cid, uint32_t vcard_selector){ 1005 UNUSED(pbap_cid); 1006 pbap_client->vcard_selector = vcard_selector; 1007 return 0; 1008 } 1009 1010 uint8_t pbap_set_vcard_selector_operator(uint16_t pbap_cid, int vcard_selector_operator){ 1011 UNUSED(pbap_cid); 1012 pbap_client->vcard_selector_operator = vcard_selector_operator; 1013 return 0; 1014 } 1015