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 BLUEKITCHEN 24 * GMBH 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__ "goep_client.c" 39 40 #include "btstack_config.h" 41 42 #include <stdint.h> 43 #include <string.h> 44 45 #include "btstack_debug.h" 46 #include "hci_dump.h" 47 #include "bluetooth_sdp.h" 48 #include "btstack_event.h" 49 #include "classic/goep_client.h" 50 #include "classic/obex_message_builder.h" 51 #include "classic/obex.h" 52 #include "classic/obex_iterator.h" 53 #include "classic/rfcomm.h" 54 #include "classic/sdp_client.h" 55 #include "classic/sdp_util.h" 56 #include "l2cap.h" 57 58 //------------------------------------------------------------------------------------------------------------ 59 // goep_client.c 60 // 61 62 #ifdef ENABLE_GOEP_L2CAP 63 #ifndef ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE 64 #error "ENABLE_GOEP_L2CAP requires ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE. Please enable ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE or disable ENABLE_GOEP_L2CAP" 65 #endif 66 #endif 67 68 static goep_client_t goep_client_singleton; 69 70 static goep_client_t * goep_client_sdp_active; 71 static uint8_t goep_client_sdp_query_attribute_value[30]; 72 static const unsigned int goep_client_sdp_query_attribute_value_buffer_size = sizeof(goep_client_sdp_query_attribute_value); 73 74 static uint8_t goep_packet_buffer[150]; 75 76 #ifdef ENABLE_GOEP_L2CAP 77 static uint8_t ertm_buffer[1000]; 78 static l2cap_ertm_config_t ertm_config = { 79 1, // ertm mandatory 80 2, // max transmit, some tests require > 1 81 2000, 82 12000, 83 512, // l2cap ertm mtu 84 2, 85 2, 86 1, // 16-bit FCS 87 }; 88 #endif 89 90 static inline void goep_client_emit_connected_event(goep_client_t * goep_client, uint8_t status){ 91 uint8_t event[15]; 92 int pos = 0; 93 event[pos++] = HCI_EVENT_GOEP_META; 94 pos++; // skip len 95 event[pos++] = GOEP_SUBEVENT_CONNECTION_OPENED; 96 little_endian_store_16(event, pos, goep_client->cid); 97 pos+=2; 98 event[pos++] = status; 99 (void)memcpy(&event[pos], goep_client->bd_addr, 6); 100 pos += 6; 101 little_endian_store_16(event, pos, goep_client->con_handle); 102 pos += 2; 103 event[pos++] = goep_client->incoming; 104 event[1] = pos - 2; 105 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 106 goep_client->client_handler(HCI_EVENT_PACKET, goep_client->cid, &event[0], pos); 107 } 108 109 static inline void goep_client_emit_connection_closed_event(goep_client_t * goep_client){ 110 uint8_t event[5]; 111 int pos = 0; 112 event[pos++] = HCI_EVENT_GOEP_META; 113 pos++; // skip len 114 event[pos++] = GOEP_SUBEVENT_CONNECTION_CLOSED; 115 little_endian_store_16(event, pos, goep_client->cid); 116 pos+=2; 117 event[1] = pos - 2; 118 if (pos != sizeof(event)) log_error("goep_client_emit_connection_closed_event size %u", pos); 119 goep_client->client_handler(HCI_EVENT_PACKET, goep_client->cid, &event[0], pos); 120 } 121 122 static inline void goep_client_emit_can_send_now_event(goep_client_t * goep_client){ 123 uint8_t event[5]; 124 int pos = 0; 125 event[pos++] = HCI_EVENT_GOEP_META; 126 pos++; // skip len 127 event[pos++] = GOEP_SUBEVENT_CAN_SEND_NOW; 128 little_endian_store_16(event, pos, goep_client->cid); 129 pos+=2; 130 event[1] = pos - 2; 131 if (pos != sizeof(event)) log_error("goep_client_emit_can_send_now_event size %u", pos); 132 goep_client->client_handler(HCI_EVENT_PACKET, goep_client->cid, &event[0], pos); 133 } 134 135 static void goep_client_handle_connection_opened(goep_client_t * goep_client, uint8_t status, uint16_t mtu){ 136 if (status) { 137 goep_client->state = GOEP_CLIENT_INIT; 138 log_info("goep_client: open failed, status %u", status); 139 } else { 140 goep_client->bearer_mtu = mtu; 141 goep_client->state = GOEP_CLIENT_CONNECTED; 142 log_info("goep_client: connection opened. cid %u, max frame size %u", goep_client->bearer_cid, goep_client->bearer_mtu); 143 } 144 goep_client_emit_connected_event(goep_client, status); 145 } 146 147 static void goep_client_handle_connection_close(goep_client_t * goep_client){ 148 goep_client->state = GOEP_CLIENT_INIT; 149 goep_client_emit_connection_closed_event(goep_client); 150 } 151 152 static goep_client_t * goep_client_for_cid(uint16_t cid){ 153 if (cid == goep_client_singleton.cid){ 154 return &goep_client_singleton; 155 } else { 156 return NULL; 157 } 158 } 159 160 static goep_client_t * goep_client_for_bearer_cid(uint16_t bearer_cid){ 161 if (bearer_cid == goep_client_singleton.bearer_cid){ 162 return &goep_client_singleton; 163 } else { 164 return NULL; 165 } 166 } 167 168 static void goep_client_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 169 UNUSED(channel); 170 UNUSED(size); 171 goep_client_t * goep_client; 172 switch (packet_type){ 173 case HCI_EVENT_PACKET: 174 switch (hci_event_packet_get_type(packet)) { 175 #ifdef ENABLE_GOEP_L2CAP 176 case L2CAP_EVENT_CHANNEL_OPENED: 177 goep_client = goep_client_for_bearer_cid(l2cap_event_channel_closed_get_local_cid(packet)); 178 btstack_assert(goep_client != NULL); 179 goep_client_handle_connection_opened(goep_client, l2cap_event_channel_opened_get_status(packet), 180 btstack_min(l2cap_event_channel_opened_get_remote_mtu(packet), l2cap_event_channel_opened_get_local_mtu(packet))); 181 break; 182 case L2CAP_EVENT_CAN_SEND_NOW: 183 goep_client = goep_client_for_bearer_cid(l2cap_event_can_send_now_get_local_cid(packet)); 184 btstack_assert(goep_client != NULL); 185 goep_client_emit_can_send_now_event(goep_client); 186 break; 187 case L2CAP_EVENT_CHANNEL_CLOSED: 188 goep_client = goep_client_for_bearer_cid(l2cap_event_channel_closed_get_local_cid(packet)); 189 btstack_assert(goep_client != NULL); 190 goep_client_handle_connection_close(goep_client); 191 break; 192 #endif 193 case RFCOMM_EVENT_CHANNEL_OPENED: 194 goep_client = goep_client_for_bearer_cid(rfcomm_event_channel_opened_get_rfcomm_cid(packet)); 195 btstack_assert(goep_client != NULL); 196 goep_client_handle_connection_opened(goep_client, rfcomm_event_channel_opened_get_status(packet), rfcomm_event_channel_opened_get_max_frame_size(packet)); 197 return; 198 case RFCOMM_EVENT_CAN_SEND_NOW: 199 goep_client = goep_client_for_bearer_cid(rfcomm_event_can_send_now_get_rfcomm_cid(packet)); 200 btstack_assert(goep_client != NULL); 201 goep_client_emit_can_send_now_event(goep_client); 202 break; 203 case RFCOMM_EVENT_CHANNEL_CLOSED: 204 goep_client = goep_client_for_bearer_cid(rfcomm_event_channel_closed_get_rfcomm_cid(packet)); 205 btstack_assert(goep_client != NULL); 206 goep_client_handle_connection_close(goep_client); 207 break; 208 default: 209 break; 210 } 211 break; 212 case L2CAP_DATA_PACKET: 213 case RFCOMM_DATA_PACKET: 214 goep_client = goep_client_for_bearer_cid(channel); 215 btstack_assert(goep_client != NULL); 216 goep_client->client_handler(GOEP_DATA_PACKET, goep_client->cid, packet, size); 217 break; 218 default: 219 break; 220 } 221 } 222 223 static void goep_client_handle_sdp_query_end_of_record(goep_client_t * goep_client){ 224 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER){ 225 if (goep_client->mas_info.instance_id == goep_client->map_mas_instance_id){ 226 // Requested MAS Instance found, accept info 227 log_info("MAS Instance #%u found", goep_client->map_mas_instance_id); 228 goep_client->rfcomm_port = goep_client->mas_info.rfcomm_port; 229 goep_client->profile_supported_features = goep_client->mas_info.supported_features; 230 goep_client->map_supported_message_types = goep_client->mas_info.supported_message_types; 231 #ifdef ENABLE_GOEP_L2CAP 232 goep_client->l2cap_psm = goep_client->mas_info.l2cap_psm; 233 #endif 234 } 235 } 236 } 237 238 static void goep_client_handle_sdp_query_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 239 goep_client_t * goep_client = goep_client_sdp_active; 240 btstack_assert(goep_client != NULL); 241 242 UNUSED(packet_type); 243 UNUSED(channel); 244 UNUSED(size); 245 246 des_iterator_t des_list_it; 247 des_iterator_t prot_it; 248 uint8_t status; 249 uint16_t record_index; 250 251 switch (hci_event_packet_get_type(packet)){ 252 case SDP_EVENT_QUERY_ATTRIBUTE_VALUE: 253 254 // detect new record 255 record_index = sdp_event_query_attribute_byte_get_record_id(packet); 256 if (record_index != goep_client->record_index){ 257 goep_client->record_index = record_index; 258 goep_client_handle_sdp_query_end_of_record(goep_client); 259 memset(&goep_client->mas_info, 0, sizeof(goep_client->mas_info)); 260 } 261 262 // check if relevant attribute 263 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)){ 264 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 265 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 266 case BLUETOOTH_ATTRIBUTE_MAS_INSTANCE_ID: 267 case BLUETOOTH_ATTRIBUTE_SUPPORTED_MESSAGE_TYPES: 268 #ifdef ENABLE_GOEP_L2CAP 269 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 270 #endif 271 break; 272 default: 273 return; 274 } 275 276 // warn if attribute too large to fit in our buffer 277 if (sdp_event_query_attribute_byte_get_attribute_length(packet) > goep_client_sdp_query_attribute_value_buffer_size) { 278 log_error("SDP attribute value size exceeded for attribute %x: available %d, required %d", sdp_event_query_attribute_byte_get_attribute_id(packet), goep_client_sdp_query_attribute_value_buffer_size, sdp_event_query_attribute_byte_get_attribute_length(packet)); 279 break; 280 } 281 282 // store single byte 283 goep_client_sdp_query_attribute_value[sdp_event_query_attribute_byte_get_data_offset(packet)] = sdp_event_query_attribute_byte_get_data(packet); 284 285 // wait until value fully received 286 if ((uint16_t)(sdp_event_query_attribute_byte_get_data_offset(packet)+1) != sdp_event_query_attribute_byte_get_attribute_length(packet)) break; 287 288 // process attributes 289 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)) { 290 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 291 for (des_iterator_init(&des_list_it, goep_client_sdp_query_attribute_value); des_iterator_has_more(&des_list_it); des_iterator_next(&des_list_it)) { 292 uint8_t *des_element; 293 uint8_t *element; 294 uint32_t uuid; 295 296 if (des_iterator_get_type(&des_list_it) != DE_DES) continue; 297 298 des_element = des_iterator_get_element(&des_list_it); 299 des_iterator_init(&prot_it, des_element); 300 301 // first element is UUID 302 element = des_iterator_get_element(&prot_it); 303 if (de_get_element_type(element) != DE_UUID) continue; 304 305 uuid = de_get_uuid32(element); 306 des_iterator_next(&prot_it); 307 if (!des_iterator_has_more(&prot_it)) continue; 308 309 // second element is RFCOMM server channel or L2CAP PSM 310 element = des_iterator_get_element(&prot_it); 311 if (uuid == BLUETOOTH_PROTOCOL_RFCOMM){ 312 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER) { 313 goep_client->mas_info.rfcomm_port = element[de_get_header_size(element)]; 314 } else { 315 goep_client->rfcomm_port = element[de_get_header_size(element)]; 316 } 317 } 318 } 319 break; 320 #ifdef ENABLE_GOEP_L2CAP 321 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 322 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER){ 323 de_element_get_uint16(goep_client_sdp_query_attribute_value, &goep_client->mas_info.l2cap_psm); 324 } else { 325 de_element_get_uint16(goep_client_sdp_query_attribute_value, &goep_client->l2cap_psm); 326 } 327 break; 328 #endif 329 // BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES == BLUETOOTH_ATTRIBUTE_MAP_SUPPORTED_FEATURES == 0x0317 330 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 331 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 332 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_32) break; 333 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER) { 334 goep_client->mas_info.supported_features = big_endian_read_32(goep_client_sdp_query_attribute_value, de_get_header_size(goep_client_sdp_query_attribute_value)); 335 } else { 336 goep_client->profile_supported_features = big_endian_read_32(goep_client_sdp_query_attribute_value, de_get_header_size(goep_client_sdp_query_attribute_value)); 337 } 338 break; 339 340 case BLUETOOTH_ATTRIBUTE_MAS_INSTANCE_ID: 341 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 342 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_8) break; 343 goep_client->mas_info.instance_id = goep_client_sdp_query_attribute_value[de_get_header_size(goep_client_sdp_query_attribute_value)]; 344 break; 345 346 case BLUETOOTH_ATTRIBUTE_SUPPORTED_MESSAGE_TYPES: 347 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 348 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_8) break; 349 goep_client->mas_info.supported_message_types = goep_client_sdp_query_attribute_value[de_get_header_size(goep_client_sdp_query_attribute_value)]; 350 break; 351 352 default: 353 break; 354 } 355 break; 356 357 case SDP_EVENT_QUERY_COMPLETE: 358 goep_client_sdp_active = NULL; 359 goep_client_handle_sdp_query_end_of_record(goep_client); 360 status = sdp_event_query_complete_get_status(packet); 361 if (status != ERROR_CODE_SUCCESS){ 362 log_info("GOEP client, SDP query failed 0x%02x", status); 363 goep_client->state = GOEP_CLIENT_INIT; 364 goep_client_emit_connected_event(goep_client, status); 365 break; 366 } 367 if ((goep_client->rfcomm_port == 0) && (goep_client->l2cap_psm == 0)){ 368 log_info("No GOEP RFCOMM or L2CAP server found"); 369 goep_client->state = GOEP_CLIENT_INIT; 370 goep_client_emit_connected_event(goep_client, SDP_SERVICE_NOT_FOUND); 371 break; 372 } 373 #ifdef ENABLE_GOEP_L2CAP 374 if (goep_client->l2cap_psm){ 375 log_info("Remote GOEP L2CAP PSM: %u", goep_client->l2cap_psm); 376 l2cap_ertm_create_channel(&goep_client_packet_handler, goep_client->bd_addr, goep_client->l2cap_psm, 377 &ertm_config, ertm_buffer, sizeof(ertm_buffer), &goep_client->bearer_cid); 378 return; 379 } 380 #endif 381 log_info("Remote GOEP RFCOMM Server Channel: %u", goep_client->rfcomm_port); 382 rfcomm_create_channel(&goep_client_packet_handler, goep_client->bd_addr, goep_client->rfcomm_port, &goep_client->bearer_cid); 383 break; 384 385 default: 386 break; 387 } 388 } 389 390 static uint8_t * goep_client_get_outgoing_buffer(goep_client_t * goep_client){ 391 if (goep_client->l2cap_psm){ 392 return goep_packet_buffer; 393 } else { 394 return rfcomm_get_outgoing_buffer(); 395 } 396 } 397 398 static uint16_t goep_client_get_outgoing_buffer_len(goep_client_t * goep_client){ 399 if (goep_client->l2cap_psm){ 400 return sizeof(goep_packet_buffer); 401 } else { 402 return rfcomm_get_max_frame_size(goep_client->bearer_cid); 403 } 404 } 405 406 static void goep_client_packet_init(goep_client_t *goep_client, uint8_t opcode) { 407 if (goep_client->l2cap_psm != 0){ 408 } else { 409 rfcomm_reserve_packet_buffer(); 410 } 411 // store opcode for parsing of response 412 goep_client->obex_opcode = opcode; 413 } 414 415 void goep_client_init(void){ 416 goep_client_t * goep_client = &goep_client_singleton; 417 memset(goep_client, 0, sizeof(goep_client_t)); 418 goep_client->state = GOEP_CLIENT_INIT; 419 goep_client->cid = 1; 420 goep_client->obex_connection_id = OBEX_CONNECTION_ID_INVALID; 421 } 422 423 void goep_client_deinit(void){ 424 memset(&goep_client_singleton, 0, sizeof(goep_client_t)); 425 memset(goep_client_sdp_query_attribute_value, 0, sizeof(goep_client_sdp_query_attribute_value)); 426 memset(goep_packet_buffer, 0, sizeof(goep_packet_buffer)); 427 } 428 429 static void geop_client_sdp_query_start(void * context){ 430 uint16_t goep_cid = (uint16_t)(uintptr_t) context; 431 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 432 if (context != NULL){ 433 goep_client_sdp_active = goep_client; 434 sdp_client_query_uuid16(&goep_client_handle_sdp_query_event, goep_client->bd_addr, 435 goep_client->uuid); 436 } 437 } 438 439 uint8_t goep_client_create_connection(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t uuid, uint16_t * out_cid){ 440 goep_client_t * goep_client = &goep_client_singleton; 441 if (goep_client->state != GOEP_CLIENT_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 442 memset(goep_client, 0, sizeof(goep_client_t)); 443 goep_client->client_handler = handler; 444 goep_client->state = GOEP_CLIENT_W4_SDP; 445 goep_client->uuid = uuid; 446 (void)memcpy(goep_client->bd_addr, addr, 6); 447 goep_client->profile_supported_features = PROFILE_FEATURES_NOT_PRESENT; 448 *out_cid = goep_client->cid; 449 goep_client->sdp_query_request.callback = geop_client_sdp_query_start; 450 goep_client->sdp_query_request.context = (void *)(uintptr_t) goep_client->cid; 451 sdp_client_register_query_callback(&goep_client->sdp_query_request); 452 return ERROR_CODE_SUCCESS; 453 } 454 455 uint32_t goep_client_get_pbap_supported_features(uint16_t goep_cid){ 456 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 457 if (goep_client == NULL){ 458 return PBAP_FEATURES_NOT_PRESENT; 459 } 460 return goep_client->profile_supported_features; 461 } 462 463 uint32_t goep_client_get_map_supported_features(uint16_t goep_cid){ 464 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 465 if (goep_client == NULL){ 466 return PROFILE_FEATURES_NOT_PRESENT; 467 } 468 return goep_client->profile_supported_features; 469 } 470 471 uint8_t goep_client_get_map_mas_instance_id(uint16_t goep_cid){ 472 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 473 if (goep_client == NULL){ 474 return 0; 475 } 476 return goep_client->map_mas_instance_id; 477 } 478 479 uint8_t goep_client_get_map_suported_message_types(uint16_t goep_cid){ 480 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 481 if (goep_client == NULL){ 482 return 0; 483 } 484 return goep_client->map_supported_message_types; 485 } 486 487 488 bool goep_client_version_20_or_higher(uint16_t goep_cid){ 489 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 490 if (goep_client == NULL){ 491 return false; 492 } 493 return goep_client->l2cap_psm != 0; 494 } 495 496 void goep_client_request_can_send_now(uint16_t goep_cid){ 497 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 498 if (goep_client == NULL){ 499 return; 500 } 501 if (goep_client->l2cap_psm){ 502 l2cap_request_can_send_now_event(goep_client->bearer_cid); 503 } else { 504 rfcomm_request_can_send_now_event(goep_client->bearer_cid); 505 } 506 } 507 508 uint8_t goep_client_disconnect(uint16_t goep_cid){ 509 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 510 if (goep_client == NULL){ 511 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 512 } 513 if (goep_client->l2cap_psm){ 514 l2cap_disconnect(goep_client->bearer_cid); 515 } else { 516 rfcomm_disconnect(goep_client->bearer_cid); 517 } 518 return ERROR_CODE_SUCCESS; 519 } 520 521 void goep_client_set_connection_id(uint16_t goep_cid, uint32_t connection_id){ 522 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 523 if (goep_client == NULL){ 524 return; 525 } 526 goep_client->obex_connection_id = connection_id; 527 } 528 529 uint8_t goep_client_get_request_opcode(uint16_t goep_cid){ 530 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 531 if (goep_client == NULL){ 532 return 0; 533 } 534 return goep_client->obex_opcode; 535 } 536 537 void goep_client_request_create_connect(uint16_t goep_cid, uint8_t obex_version_number, uint8_t flags, uint16_t maximum_obex_packet_length){ 538 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 539 if (goep_client == NULL){ 540 return; 541 } 542 goep_client_packet_init(goep_client, OBEX_OPCODE_CONNECT); 543 // workaround: limit OBEX packet len to L2CAP/RFCOMM MTU to avoid handling of fragemented packets 544 maximum_obex_packet_length = btstack_min(maximum_obex_packet_length, goep_client->bearer_mtu); 545 546 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 547 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 548 obex_message_builder_request_create_connect(buffer, buffer_len, obex_version_number, flags, maximum_obex_packet_length); 549 } 550 551 void goep_client_request_create_get(uint16_t goep_cid){ 552 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 553 if (goep_client == NULL){ 554 return; 555 } 556 goep_client_packet_init(goep_client, OBEX_OPCODE_GET | OBEX_OPCODE_FINAL_BIT_MASK); 557 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 558 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 559 obex_message_builder_request_create_get(buffer, buffer_len, goep_client->obex_connection_id); 560 } 561 562 void goep_client_request_create_put(uint16_t goep_cid){ 563 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 564 if (goep_client == NULL){ 565 return; 566 } 567 goep_client_packet_init(goep_client, OBEX_OPCODE_PUT | OBEX_OPCODE_FINAL_BIT_MASK); 568 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 569 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 570 obex_message_builder_request_create_put(buffer, buffer_len, goep_client->obex_connection_id); 571 } 572 573 void goep_client_request_create_set_path(uint16_t goep_cid, uint8_t flags){ 574 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 575 if (goep_client == NULL){ 576 return; 577 } 578 goep_client_packet_init(goep_client, OBEX_OPCODE_SETPATH); 579 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 580 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 581 obex_message_builder_request_create_set_path(buffer, buffer_len, flags, goep_client->obex_connection_id); 582 } 583 584 void goep_client_request_create_abort(uint16_t goep_cid){ 585 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 586 if (goep_client == NULL){ 587 return; 588 } 589 goep_client_packet_init(goep_client, OBEX_OPCODE_ABORT); 590 591 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 592 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 593 obex_message_builder_request_create_abort(buffer, buffer_len, goep_client->obex_connection_id); 594 } 595 596 void goep_client_request_create_disconnect(uint16_t goep_cid){ 597 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 598 if (goep_client == NULL){ 599 return; 600 } 601 goep_client_packet_init(goep_client, OBEX_OPCODE_DISCONNECT); 602 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 603 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 604 obex_message_builder_request_create_disconnect(buffer, buffer_len, goep_client->obex_connection_id); 605 } 606 607 void goep_client_header_add_byte(uint16_t goep_cid, uint8_t header_type, uint8_t value){ 608 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 609 if (goep_client == NULL){ 610 return; 611 } 612 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 613 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 614 obex_message_builder_header_add_byte(buffer, buffer_len, header_type, value); 615 } 616 617 void goep_client_header_add_word(uint16_t goep_cid, uint8_t header_type, uint32_t value){ 618 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 619 if (goep_client == NULL){ 620 return; 621 } 622 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 623 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 624 obex_message_builder_header_add_word(buffer, buffer_len, header_type, value); 625 } 626 627 void goep_client_header_add_variable(uint16_t goep_cid, uint8_t header_type, const uint8_t * header_data, uint16_t header_data_length){ 628 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 629 if (goep_client == NULL){ 630 return; 631 } 632 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 633 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 634 obex_message_builder_header_add_variable(buffer, buffer_len, header_type, header_data, header_data_length); 635 } 636 637 void goep_client_header_add_srm_enable(uint16_t goep_cid){ 638 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 639 if (goep_client == NULL){ 640 return; 641 } 642 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 643 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 644 obex_message_builder_header_add_srm_enable(buffer, buffer_len); 645 } 646 647 void goep_client_header_add_target(uint16_t goep_cid, const uint8_t * target, uint16_t length){ 648 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 649 if (goep_client == NULL){ 650 return; 651 } 652 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 653 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 654 obex_message_builder_header_add_target(buffer, buffer_len, target, length); 655 } 656 657 void goep_client_header_add_application_parameters(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 658 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 659 if (goep_client == NULL){ 660 return; 661 } 662 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 663 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 664 obex_message_builder_header_add_application_parameters(buffer, buffer_len, data, length); 665 } 666 667 void goep_client_header_add_challenge_response(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 668 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 669 if (goep_client == NULL){ 670 return; 671 } 672 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 673 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 674 obex_message_builder_header_add_challenge_response(buffer, buffer_len, data, length); 675 } 676 677 void goep_client_body_add_static(uint16_t goep_cid, const uint8_t * data, uint32_t length){ 678 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 679 if (goep_client == NULL){ 680 return; 681 } 682 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 683 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 684 obex_message_builder_body_add_static(buffer, buffer_len, data, length); 685 } 686 687 uint16_t goep_client_body_get_outgoing_buffer_len(uint16_t goep_cid) { 688 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 689 if (goep_client == NULL){ 690 return 0; 691 } 692 return goep_client_get_outgoing_buffer_len(goep_client); 693 }; 694 695 void goep_client_body_fillup_static(uint16_t goep_cid, const uint8_t * data, uint32_t length, uint32_t * ret_length){ 696 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 697 if (goep_client == NULL){ 698 return; 699 } 700 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 701 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 702 obex_message_builder_body_fillup_static(buffer, buffer_len, data, length, ret_length); 703 } 704 705 void goep_client_header_add_name(uint16_t goep_cid, const char * name){ 706 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 707 if (goep_client == NULL){ 708 return; 709 } 710 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 711 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 712 obex_message_builder_header_add_name(buffer, buffer_len, name); 713 } 714 715 void goep_client_header_add_name_prefix(uint16_t goep_cid, const char * name, uint16_t name_len){ 716 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 717 if (goep_client == NULL){ 718 return; 719 } 720 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 721 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 722 obex_message_builder_header_add_name_prefix(buffer, buffer_len, name, name_len); 723 } 724 725 void goep_client_header_add_type(uint16_t goep_cid, const char * type){ 726 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 727 if (goep_client == NULL){ 728 return; 729 } 730 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 731 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 732 obex_message_builder_header_add_type(buffer, buffer_len, type); 733 } 734 735 void goep_client_header_add_length(uint16_t goep_cid, uint32_t length){ 736 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 737 if (goep_client == NULL){ 738 return; 739 } 740 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 741 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 742 obex_message_builder_header_add_length(buffer, buffer_len, length); 743 } 744 745 uint16_t goep_client_request_get_max_body_size(uint16_t goep_cid){ 746 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 747 if (goep_client == NULL){ 748 return 0; 749 } 750 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 751 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 752 uint16_t pos = big_endian_read_16(buffer, 1); 753 return buffer_len - pos; 754 } 755 756 int goep_client_execute(uint16_t goep_cid){ 757 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 758 if (goep_client == NULL){ 759 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 760 } 761 return goep_client_execute_with_final_bit (goep_cid, true); 762 } 763 764 int goep_client_execute_with_final_bit(uint16_t goep_cid, bool final){ 765 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 766 if (goep_client == NULL){ 767 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 768 } 769 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 770 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 771 772 obex_message_builder_set_final_bit (buffer, buffer_len, final); 773 774 uint16_t pos = big_endian_read_16(buffer, 1); 775 if (goep_client->l2cap_psm){ 776 return l2cap_send(goep_client->bearer_cid, buffer, pos); 777 } else { 778 return rfcomm_send_prepared(goep_client->bearer_cid, pos); 779 } 780 } 781 782