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 pbap_client->state = PBAP_W4_GET_CARD_LIST_COMPLETE; 413 } 414 // send packet 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 // detect end of path (after setting path_element) 464 if (pbap_client->current_folder[pbap_client->set_path_offset] == '\0'){ 465 pbap_client->current_folder = NULL; 466 } 467 468 log_info("Path element '%s', done %u", path_element, pbap_client->current_folder == NULL); 469 470 goep_client_create_set_path_request(pbap_client->goep_cid, 1 << 1); // Don’t create directory 471 goep_client_add_header_name(pbap_client->goep_cid, (const char *) path_element); // next element 472 // state 473 pbap_client->state = PBAP_W4_SET_PATH_ELEMENT_COMPLETE; 474 // send packet 475 goep_client_execute(pbap_client->goep_cid); 476 break; 477 default: 478 break; 479 } 480 } 481 482 static void pbap_parse_authentication_challenge(pbap_client_t * context, const uint8_t * challenge_data, uint16_t challenge_len){ 483 // printf("Challenge: "); 484 // printf_hexdump(challenge_data, challenge_len); 485 int i; 486 // uint8_t charset_code = 0; 487 for (i=0 ; i<challenge_len ; ){ 488 int tag = challenge_data[i]; 489 int len = challenge_data[i + 1]; 490 i += 2; 491 switch (tag) { 492 case 0: 493 if (len != 0x10) { 494 log_error("Invalid OBEX digest len %u", len); 495 return; 496 } 497 memcpy(context->authentication_nonce, &challenge_data[i], 16); 498 // printf("Nonce: "); 499 // printf_hexdump(context->authentication_nonce, 16); 500 break; 501 case 1: 502 context->authentication_options = challenge_data[i]; 503 // printf("Options %u\n", context->authentication_options); 504 break; 505 case 2: 506 // TODO: handle charset 507 // charset_code = challenge_data[i]; 508 break; 509 } 510 i += len; 511 } 512 } 513 514 static void pbap_process_srm_headers(pbap_client_t * context, uint8_t *packet, uint16_t size){ 515 516 if (packet[0] != OBEX_RESP_CONTINUE) return; 517 518 // get SRM and SRMP Headers 519 int srm_value = OBEX_SRM_DISABLE; 520 int srmp_value = OBEX_SRMP_NEXT; 521 obex_iterator_t it; 522 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)){ 523 uint8_t hi = obex_iterator_get_hi(&it); 524 uint16_t data_len = obex_iterator_get_data_len(&it); 525 const uint8_t * data = data = obex_iterator_get_data(&it); 526 switch (hi){ 527 case OBEX_HEADER_SINGLE_RESPONSE_MODE: 528 if (data_len != 1) break; 529 srm_value = *data; 530 break; 531 case OBEX_HEADER_SINGLE_RESPONSE_MODE_PARAMETER: 532 if (data_len != 1) break; 533 srmp_value = *data; 534 break; 535 default: 536 break; 537 } 538 } 539 540 // Update SRM state based on SRM haders 541 switch (context->srm_state){ 542 case SRM_W4_CONFIRM: 543 switch (srm_value){ 544 case OBEX_SRM_ENABLE: 545 switch (srmp_value){ 546 case OBEX_SRMP_WAIT: 547 context->srm_state = SRM_ENABLED_BUT_WAITING; 548 break; 549 default: 550 context->srm_state = SRM_ENABLED; 551 break; 552 } 553 break; 554 default: 555 context->srm_state = SRM_DISABLED; 556 break; 557 } 558 break; 559 case SRM_ENABLED_BUT_WAITING: 560 switch (srmp_value){ 561 case OBEX_SRMP_WAIT: 562 context->srm_state = SRM_ENABLED_BUT_WAITING; 563 break; 564 default: 565 context->srm_state = SRM_ENABLED; 566 break; 567 } 568 break; 569 default: 570 break; 571 } 572 log_info("SRM state %u", context->srm_state); 573 } 574 575 static void pbap_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 576 577 UNUSED(channel); // ok: there is no channel 578 UNUSED(size); // ok: handling own geop events 579 580 obex_iterator_t it; 581 uint8_t status; 582 int wait_for_user = 0; 583 switch (packet_type){ 584 case HCI_EVENT_PACKET: 585 switch (hci_event_packet_get_type(packet)) { 586 case HCI_EVENT_GOEP_META: 587 switch (hci_event_goep_meta_get_subevent_code(packet)){ 588 case GOEP_SUBEVENT_CONNECTION_OPENED: 589 status = goep_subevent_connection_opened_get_status(packet); 590 pbap_client->con_handle = goep_subevent_connection_opened_get_con_handle(packet); 591 pbap_client->incoming = goep_subevent_connection_opened_get_incoming(packet); 592 goep_subevent_connection_opened_get_bd_addr(packet, pbap_client->bd_addr); 593 if (status){ 594 log_info("pbap: connection failed %u", status); 595 pbap_client->state = PBAP_INIT; 596 pbap_client_emit_connected_event(pbap_client, status); 597 } else { 598 log_info("pbap: connection established"); 599 pbap_client->goep_cid = goep_subevent_connection_opened_get_goep_cid(packet); 600 pbap_client->state = PBAP_W2_SEND_CONNECT_REQUEST; 601 goep_client_request_can_send_now(pbap_client->goep_cid); 602 } 603 break; 604 case GOEP_SUBEVENT_CONNECTION_CLOSED: 605 if (pbap_client->state != PBAP_CONNECTED){ 606 pbap_client_emit_operation_complete_event(pbap_client, OBEX_DISCONNECTED); 607 } 608 pbap_client->state = PBAP_INIT; 609 pbap_client_emit_connection_closed_event(pbap_client); 610 break; 611 case GOEP_SUBEVENT_CAN_SEND_NOW: 612 pbap_handle_can_send_now(); 613 break; 614 } 615 break; 616 default: 617 break; 618 } 619 break; 620 case GOEP_DATA_PACKET: 621 // TODO: handle chunked data 622 // obex_dump_packet(goep_client_get_request_opcode(pbap_client->goep_cid), packet, size); 623 switch (pbap_client->state){ 624 case PBAP_W4_CONNECT_RESPONSE: 625 switch (packet[0]){ 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_CONNECTION_ID){ 630 goep_client_set_connection_id(pbap_client->goep_cid, obex_iterator_get_data_32(&it)); 631 } 632 } 633 pbap_client->state = PBAP_CONNECTED; 634 pbap_client->vcard_selector_supported = pbap_supported_features & goep_client_get_pbap_supported_features(pbap_client->goep_cid) & PBAP_SUPPORTED_FEATURES_VCARD_SELECTING; 635 pbap_client_emit_connected_event(pbap_client, 0); 636 break; 637 case OBEX_RESP_UNAUTHORIZED: 638 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)){ 639 uint8_t hi = obex_iterator_get_hi(&it); 640 if (hi == OBEX_HEADER_AUTHENTICATION_CHALLENGE){ 641 pbap_parse_authentication_challenge(pbap_client, obex_iterator_get_data(&it), obex_iterator_get_data_len(&it)); 642 } 643 } 644 pbap_client->state = PBAP_W4_USER_AUTHENTICATION; 645 pbap_client_emit_authentication_event(pbap_client, pbap_client->authentication_options); 646 break; 647 default: 648 log_info("pbap: obex connect failed, result 0x%02x", packet[0]); 649 pbap_client->state = PBAP_INIT; 650 pbap_client_emit_connected_event(pbap_client, OBEX_CONNECT_FAILED); 651 break; 652 } 653 break; 654 case PBAP_W4_DISCONNECT_RESPONSE: 655 goep_client_disconnect(pbap_client->goep_cid); 656 break; 657 case PBAP_W4_SET_PATH_ROOT_COMPLETE: 658 case PBAP_W4_SET_PATH_ELEMENT_COMPLETE: 659 log_info("set path root/path element complete, current folder %s, path offset %u", pbap_client->current_folder, pbap_client->set_path_offset); 660 if (packet[0] == OBEX_RESP_SUCCESS){ 661 if (pbap_client->current_folder){ 662 pbap_client->state = PBAP_W2_SET_PATH_ELEMENT; 663 goep_client_request_can_send_now(pbap_client->goep_cid); 664 } else { 665 pbap_client->state = PBAP_CONNECTED; 666 pbap_client_emit_operation_complete_event(pbap_client, 0); 667 } 668 } else if (packet[0] == OBEX_RESP_NOT_FOUND){ 669 pbap_client->state = PBAP_CONNECTED; 670 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_FOUND); 671 } else { 672 pbap_client->state = PBAP_CONNECTED; 673 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 674 } 675 break; 676 case PBAP_W4_PHONEBOOK: 677 pbap_client->flow_next_triggered = 0; 678 wait_for_user = 0; 679 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)){ 680 uint8_t hi = obex_iterator_get_hi(&it); 681 uint16_t data_len = obex_iterator_get_data_len(&it); 682 const uint8_t * data = data = obex_iterator_get_data(&it); 683 switch (hi){ 684 case OBEX_HEADER_BODY: 685 case OBEX_HEADER_END_OF_BODY: 686 pbap_client->client_handler(PBAP_DATA_PACKET, pbap_client->cid, (uint8_t *) data, data_len); 687 wait_for_user++; 688 if (wait_for_user > 1){ 689 log_error("wait_for_user %u", wait_for_user); 690 } 691 break; 692 default: 693 break; 694 } 695 } 696 switch(packet[0]){ 697 case OBEX_RESP_CONTINUE: 698 pbap_process_srm_headers(pbap_client, packet, size); 699 if (pbap_client->srm_state == SRM_ENABLED) break; 700 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 701 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 702 goep_client_request_can_send_now(pbap_client->goep_cid); 703 } 704 break; 705 case OBEX_RESP_SUCCESS: 706 pbap_client->state = PBAP_CONNECTED; 707 pbap_client_emit_operation_complete_event(pbap_client, 0); 708 break; 709 default: 710 log_info("unexpected response 0x%02x", packet[0]); 711 pbap_client->state = PBAP_CONNECTED; 712 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 713 break; 714 } 715 break; 716 case PBAP_W4_GET_PHONEBOOK_SIZE_COMPLETE: 717 pbap_client->state = PBAP_CONNECTED; 718 if (packet[0] == OBEX_RESP_SUCCESS){ 719 int have_size = 0; 720 uint16_t phonebook_size; 721 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)){ 722 uint8_t hi = obex_iterator_get_hi(&it); 723 if (hi == OBEX_HEADER_APPLICATION_PARAMETERS){ 724 uint16_t data_len = obex_iterator_get_data_len(&it); 725 const uint8_t * data = obex_iterator_get_data(&it); 726 // iterate over application headers (TLV with 1 bytes len) 727 unsigned int i = 0; 728 while (i<data_len){ 729 uint8_t tag = data[i++]; 730 uint8_t len = data[i++]; 731 if (tag == PBAP_APPLICATION_PARAMETER_PHONEBOOK_SIZE && len == 2){ 732 have_size = 1; 733 phonebook_size = big_endian_read_16(data, i); 734 } 735 i+=len; 736 } 737 } 738 } 739 if (have_size){ 740 pbap_client_emit_phonebook_size_event(pbap_client, 0, phonebook_size); 741 break; 742 } 743 } 744 pbap_client_emit_phonebook_size_event(pbap_client, OBEX_UNKNOWN_ERROR, 0); 745 break; 746 case PBAP_W4_GET_CARD_LIST_COMPLETE: 747 switch (packet[0]){ 748 case OBEX_RESP_CONTINUE: 749 pbap_process_srm_headers(pbap_client, packet, size); 750 if (pbap_client->srm_state == SRM_ENABLED) break; 751 pbap_client->state = PBAP_W2_GET_CARD_LIST; 752 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 753 goep_client_request_can_send_now(pbap_client->goep_cid); 754 } 755 break; 756 case OBEX_RESP_SUCCESS: 757 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)){ 758 uint8_t hi = obex_iterator_get_hi(&it); 759 if (hi == OBEX_HEADER_END_OF_BODY){ 760 uint16_t data_len = obex_iterator_get_data_len(&it); 761 const uint8_t * data = obex_iterator_get_data(&it); 762 // now try parsing it 763 yxml_init(&pbap_client->xml_parser, pbap_client->xml_buffer, sizeof(pbap_client->xml_buffer)); 764 int card_found = 0; 765 int name_found = 0; 766 int handle_found = 0; 767 char name[PBAP_MAX_NAME_LEN]; 768 char handle[PBAP_MAX_HANDLE_LEN]; 769 name[0] = 0; 770 handle[0] = 0; 771 while (data_len--){ 772 yxml_ret_t r = yxml_parse(&pbap_client->xml_parser, *data++); 773 switch (r){ 774 case YXML_ELEMSTART: 775 card_found = strcmp("card", pbap_client->xml_parser.elem) == 0; 776 break; 777 case YXML_ELEMEND: 778 if (card_found){ 779 pbap_client_emit_card_result_event(pbap_client, name, handle); 780 } 781 card_found = 0; 782 break; 783 case YXML_ATTRSTART: 784 if (!card_found) break; 785 if (strcmp("name", pbap_client->xml_parser.attr) == 0){ 786 name_found = 1; 787 break; 788 } 789 if (strcmp("handle", pbap_client->xml_parser.attr) == 0){ 790 handle_found = 1; 791 break; 792 } 793 break; 794 case YXML_ATTRVAL: 795 if (name_found) { 796 // "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." 797 if (strlen(name) + 4 + 1 >= sizeof(name)) break; 798 strcat(name, pbap_client->xml_parser.data); 799 break; 800 } 801 if (handle_found) { 802 // "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." 803 if (strlen(handle) + 4 + 1 >= sizeof(handle)) break; 804 strcat(handle, pbap_client->xml_parser.data); 805 break; 806 } 807 break; 808 case YXML_ATTREND: 809 name_found = 0; 810 handle_found = 0; 811 break; 812 default: 813 break; 814 } 815 } 816 } 817 // 818 pbap_client->state = PBAP_CONNECTED; 819 pbap_client_emit_operation_complete_event(pbap_client, 0); 820 } 821 break; 822 case OBEX_RESP_NOT_ACCEPTABLE: 823 pbap_client->state = PBAP_CONNECTED; 824 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 825 break; 826 default: 827 log_info("unexpected response 0x%02x", packet[0]); 828 pbap_client->state = PBAP_CONNECTED; 829 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 830 break; 831 } 832 break; 833 case PBAP_W4_GET_CARD_ENTRY_COMPLETE: 834 switch (packet[0]){ 835 case OBEX_RESP_CONTINUE: 836 pbap_process_srm_headers(pbap_client, packet, size); 837 if (pbap_client->srm_state == SRM_ENABLED) break; 838 pbap_client->state = PBAP_W2_GET_CARD_ENTRY; 839 if (!pbap_client->flow_control_enabled || !wait_for_user || pbap_client->flow_next_triggered) { 840 goep_client_request_can_send_now(pbap_client->goep_cid); 841 } 842 break; 843 case OBEX_RESP_SUCCESS: 844 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)){ 845 uint8_t hi = obex_iterator_get_hi(&it); 846 if (hi == OBEX_HEADER_END_OF_BODY){ 847 // uint16_t data_len = obex_iterator_get_data_len(&it); 848 // const uint8_t * data = obex_iterator_get_data(&it); 849 // now try parsing it 850 } 851 } 852 pbap_client->state = PBAP_CONNECTED; 853 pbap_client_emit_operation_complete_event(pbap_client, 0); 854 break; 855 case OBEX_RESP_NOT_ACCEPTABLE: 856 pbap_client->state = PBAP_CONNECTED; 857 pbap_client_emit_operation_complete_event(pbap_client, OBEX_NOT_ACCEPTABLE); 858 break; 859 default: 860 log_info("unexpected response 0x%02x", packet[0]); 861 pbap_client->state = PBAP_CONNECTED; 862 pbap_client_emit_operation_complete_event(pbap_client, OBEX_UNKNOWN_ERROR); 863 break; 864 } 865 break; 866 default: 867 break; 868 } 869 break; 870 default: 871 break; 872 } 873 } 874 875 void pbap_client_init(void){ 876 memset(pbap_client, 0, sizeof(pbap_client_t)); 877 pbap_client->state = PBAP_INIT; 878 pbap_client->cid = 1; 879 } 880 881 uint8_t pbap_connect(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t * out_cid){ 882 if (pbap_client->state != PBAP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 883 884 pbap_client->state = PBAP_W4_GOEP_CONNECTION; 885 pbap_client->client_handler = handler; 886 pbap_client->vcard_selector = 0; 887 pbap_client->vcard_selector_operator = PBAP_VCARD_SELECTOR_OPERATOR_OR; 888 889 uint8_t err = goep_client_create_connection(&pbap_packet_handler, addr, BLUETOOTH_SERVICE_CLASS_PHONEBOOK_ACCESS_PSE, &pbap_client->goep_cid); 890 *out_cid = pbap_client->cid; 891 if (err) return err; 892 return 0; 893 } 894 895 uint8_t pbap_disconnect(uint16_t pbap_cid){ 896 UNUSED(pbap_cid); 897 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 898 pbap_client->state = PBAP_W2_SEND_DISCONNECT_REQUEST; 899 goep_client_request_can_send_now(pbap_client->goep_cid); 900 return 0; 901 } 902 903 uint8_t pbap_get_phonebook_size(uint16_t pbap_cid, const char * path){ 904 UNUSED(pbap_cid); 905 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 906 pbap_client->state = PBAP_W2_GET_PHONEBOOK_SIZE; 907 pbap_client->phonebook_path = path; 908 pbap_client->request_number = 0; 909 goep_client_request_can_send_now(pbap_client->goep_cid); 910 return 0; 911 } 912 913 uint8_t pbap_pull_phonebook(uint16_t pbap_cid, const char * path){ 914 UNUSED(pbap_cid); 915 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 916 pbap_client->state = PBAP_W2_PULL_PHONEBOOK; 917 pbap_client->phonebook_path = path; 918 pbap_client->request_number = 0; 919 goep_client_request_can_send_now(pbap_client->goep_cid); 920 return 0; 921 } 922 923 uint8_t pbap_set_phonebook(uint16_t pbap_cid, const char * path){ 924 UNUSED(pbap_cid); 925 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 926 pbap_client->state = PBAP_W2_SET_PATH_ROOT; 927 pbap_client->current_folder = path; 928 pbap_client->set_path_offset = 0; 929 goep_client_request_can_send_now(pbap_client->goep_cid); 930 return 0; 931 } 932 933 uint8_t pbap_authentication_password(uint16_t pbap_cid, const char * password){ 934 UNUSED(pbap_cid); 935 if (pbap_client->state != PBAP_W4_USER_AUTHENTICATION) return BTSTACK_BUSY; 936 pbap_client->state = PBAP_W2_SEND_AUTHENTICATED_CONNECT; 937 pbap_client->authentication_password = password; 938 goep_client_request_can_send_now(pbap_client->goep_cid); 939 return 0; 940 } 941 942 uint8_t pbap_pull_vcard_listing(uint16_t pbap_cid, const char * path){ 943 UNUSED(pbap_cid); 944 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 945 pbap_client->state = PBAP_W2_GET_CARD_LIST; 946 pbap_client->phonebook_path = path; 947 pbap_client->phone_number = NULL; 948 pbap_client->request_number = 0; 949 goep_client_request_can_send_now(pbap_client->goep_cid); 950 return 0; 951 } 952 953 uint8_t pbap_pull_vcard_entry(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_ENTRY; 957 // pbap_client->phonebook_path = NULL; 958 // pbap_client->phone_number = NULL; 959 pbap_client->vcard_name = path; 960 pbap_client->request_number = 0; 961 goep_client_request_can_send_now(pbap_client->goep_cid); 962 return 0; 963 } 964 965 uint8_t pbap_lookup_by_number(uint16_t pbap_cid, const char * phone_number){ 966 UNUSED(pbap_cid); 967 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 968 pbap_client->state = PBAP_W2_GET_CARD_LIST; 969 pbap_client->phonebook_path = pbap_vcard_listing_name; 970 pbap_client->phone_number = phone_number; 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_abort(uint16_t pbap_cid){ 977 UNUSED(pbap_cid); 978 log_info("abort current operation, state 0x%02x", pbap_client->state); 979 pbap_client->abort_operation = 1; 980 goep_client_request_can_send_now(pbap_client->goep_cid); 981 return 0; 982 } 983 984 uint8_t pbap_next_packet(uint16_t pbap_cid){ 985 // log_info("pbap_next_packet, state %x", pbap_client->state); 986 UNUSED(pbap_cid); 987 if (!pbap_client->flow_control_enabled) return 0; 988 switch (pbap_client->state){ 989 case PBAP_W2_PULL_PHONEBOOK: 990 goep_client_request_can_send_now(pbap_client->goep_cid); 991 break; 992 case PBAP_W4_PHONEBOOK: 993 pbap_client->flow_next_triggered = 1; 994 break; 995 default: 996 break; 997 } 998 return 0; 999 } 1000 1001 uint8_t pbap_set_flow_control_mode(uint16_t pbap_cid, int enable){ 1002 UNUSED(pbap_cid); 1003 if (pbap_client->state != PBAP_CONNECTED) return BTSTACK_BUSY; 1004 pbap_client->flow_control_enabled = enable; 1005 return 0; 1006 } 1007 1008 uint8_t pbap_set_vcard_selector(uint16_t pbap_cid, uint32_t vcard_selector){ 1009 UNUSED(pbap_cid); 1010 pbap_client->vcard_selector = vcard_selector; 1011 return 0; 1012 } 1013 1014 uint8_t pbap_set_vcard_selector_operator(uint16_t pbap_cid, int vcard_selector_operator){ 1015 UNUSED(pbap_cid); 1016 pbap_client->vcard_selector_operator = vcard_selector_operator; 1017 return 0; 1018 } 1019