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 uint16_t goep_client_cid; 69 static btstack_linked_list_t goep_clients; 70 71 static goep_client_t * goep_client_sdp_active; 72 static uint8_t goep_client_sdp_query_attribute_value[30]; 73 static const unsigned int goep_client_sdp_query_attribute_value_buffer_size = sizeof(goep_client_sdp_query_attribute_value); 74 static uint8_t goep_packet_buffer[150]; 75 76 // singleton instance 77 static goep_client_t goep_client_singleton; 78 79 #ifdef ENABLE_GOEP_L2CAP 80 // singleton instance 81 static uint8_t goep_client_singleton_ertm_buffer[1000]; 82 static l2cap_ertm_config_t goep_client_singleton_ertm_config = { 83 1, // ertm mandatory 84 2, // max transmit, some tests require > 1 85 2000, 86 12000, 87 512, // l2cap ertm mtu 88 2, 89 2, 90 1, // 16-bit FCS 91 }; 92 #endif 93 94 static inline void goep_client_emit_connected_event(goep_client_t * goep_client, uint8_t status){ 95 uint8_t event[15]; 96 int pos = 0; 97 event[pos++] = HCI_EVENT_GOEP_META; 98 pos++; // skip len 99 event[pos++] = GOEP_SUBEVENT_CONNECTION_OPENED; 100 little_endian_store_16(event, pos, goep_client->cid); 101 pos+=2; 102 event[pos++] = status; 103 (void)memcpy(&event[pos], goep_client->bd_addr, 6); 104 pos += 6; 105 little_endian_store_16(event, pos, goep_client->con_handle); 106 pos += 2; 107 event[pos++] = goep_client->incoming; 108 event[1] = pos - 2; 109 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 110 goep_client->client_handler(HCI_EVENT_PACKET, goep_client->cid, &event[0], pos); 111 } 112 113 static inline void goep_client_emit_connection_closed_event(goep_client_t * goep_client){ 114 uint8_t event[5]; 115 int pos = 0; 116 event[pos++] = HCI_EVENT_GOEP_META; 117 pos++; // skip len 118 event[pos++] = GOEP_SUBEVENT_CONNECTION_CLOSED; 119 little_endian_store_16(event, pos, goep_client->cid); 120 pos+=2; 121 event[1] = pos - 2; 122 if (pos != sizeof(event)) log_error("goep_client_emit_connection_closed_event size %u", pos); 123 goep_client->client_handler(HCI_EVENT_PACKET, goep_client->cid, &event[0], pos); 124 } 125 126 static inline void goep_client_emit_can_send_now_event(goep_client_t * goep_client){ 127 uint8_t event[5]; 128 int pos = 0; 129 event[pos++] = HCI_EVENT_GOEP_META; 130 pos++; // skip len 131 event[pos++] = GOEP_SUBEVENT_CAN_SEND_NOW; 132 little_endian_store_16(event, pos, goep_client->cid); 133 pos+=2; 134 event[1] = pos - 2; 135 if (pos != sizeof(event)) log_error("goep_client_emit_can_send_now_event size %u", pos); 136 goep_client->client_handler(HCI_EVENT_PACKET, goep_client->cid, &event[0], pos); 137 } 138 139 static void goep_client_handle_connection_opened(goep_client_t * goep_client, uint8_t status, uint16_t mtu){ 140 if (status) { 141 goep_client->state = GOEP_CLIENT_INIT; 142 log_info("goep_client: open failed, status %u", status); 143 } else { 144 goep_client->bearer_mtu = mtu; 145 goep_client->state = GOEP_CLIENT_CONNECTED; 146 log_info("goep_client: connection opened. cid %u, max frame size %u", goep_client->bearer_cid, goep_client->bearer_mtu); 147 } 148 goep_client_emit_connected_event(goep_client, status); 149 } 150 151 static void goep_client_handle_connection_close(goep_client_t * goep_client){ 152 goep_client->state = GOEP_CLIENT_INIT; 153 btstack_linked_list_remove(&goep_clients, (btstack_linked_item_t *) goep_client); 154 goep_client_emit_connection_closed_event(goep_client); 155 } 156 157 static goep_client_t * goep_client_for_cid(uint16_t cid){ 158 btstack_linked_list_iterator_t it; 159 btstack_linked_list_iterator_init(&it, &goep_clients); 160 while (btstack_linked_list_iterator_has_next(&it)){ 161 goep_client_t * goep_client = (goep_client_t *) btstack_linked_list_iterator_next(&it); 162 if (goep_client->cid == cid){ 163 return goep_client; 164 } 165 } 166 return NULL; 167 } 168 169 static goep_client_t * goep_client_for_bearer_cid(uint16_t bearer_cid){ 170 if (bearer_cid == goep_client_singleton.bearer_cid){ 171 return &goep_client_singleton; 172 } else { 173 btstack_linked_list_iterator_t it; 174 btstack_linked_list_iterator_init(&it, &goep_clients); 175 while (btstack_linked_list_iterator_has_next(&it)){ 176 goep_client_t * goep_client = (goep_client_t *) btstack_linked_list_iterator_next(&it); 177 if (goep_client->bearer_cid == bearer_cid){ 178 return goep_client; 179 } 180 } 181 return NULL; 182 } 183 } 184 185 static void goep_client_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 186 UNUSED(channel); 187 UNUSED(size); 188 goep_client_t * goep_client; 189 switch (packet_type){ 190 case HCI_EVENT_PACKET: 191 switch (hci_event_packet_get_type(packet)) { 192 #ifdef ENABLE_GOEP_L2CAP 193 case L2CAP_EVENT_CHANNEL_OPENED: 194 goep_client = goep_client_for_bearer_cid(l2cap_event_channel_opened_get_local_cid(packet)); 195 btstack_assert(goep_client != NULL); 196 goep_client_handle_connection_opened(goep_client, l2cap_event_channel_opened_get_status(packet), 197 btstack_min(l2cap_event_channel_opened_get_remote_mtu(packet), l2cap_event_channel_opened_get_local_mtu(packet))); 198 break; 199 case L2CAP_EVENT_CAN_SEND_NOW: 200 goep_client = goep_client_for_bearer_cid(l2cap_event_can_send_now_get_local_cid(packet)); 201 btstack_assert(goep_client != NULL); 202 goep_client_emit_can_send_now_event(goep_client); 203 break; 204 case L2CAP_EVENT_CHANNEL_CLOSED: 205 goep_client = goep_client_for_bearer_cid(l2cap_event_channel_closed_get_local_cid(packet)); 206 btstack_assert(goep_client != NULL); 207 goep_client_handle_connection_close(goep_client); 208 break; 209 #endif 210 case RFCOMM_EVENT_CHANNEL_OPENED: 211 goep_client = goep_client_for_bearer_cid(rfcomm_event_channel_opened_get_rfcomm_cid(packet)); 212 btstack_assert(goep_client != NULL); 213 goep_client_handle_connection_opened(goep_client, rfcomm_event_channel_opened_get_status(packet), rfcomm_event_channel_opened_get_max_frame_size(packet)); 214 return; 215 case RFCOMM_EVENT_CAN_SEND_NOW: 216 goep_client = goep_client_for_bearer_cid(rfcomm_event_can_send_now_get_rfcomm_cid(packet)); 217 btstack_assert(goep_client != NULL); 218 goep_client_emit_can_send_now_event(goep_client); 219 break; 220 case RFCOMM_EVENT_CHANNEL_CLOSED: 221 goep_client = goep_client_for_bearer_cid(rfcomm_event_channel_closed_get_rfcomm_cid(packet)); 222 btstack_assert(goep_client != NULL); 223 goep_client_handle_connection_close(goep_client); 224 break; 225 default: 226 break; 227 } 228 break; 229 case L2CAP_DATA_PACKET: 230 case RFCOMM_DATA_PACKET: 231 goep_client = goep_client_for_bearer_cid(channel); 232 btstack_assert(goep_client != NULL); 233 goep_client->client_handler(GOEP_DATA_PACKET, goep_client->cid, packet, size); 234 break; 235 default: 236 break; 237 } 238 } 239 240 static void goep_client_handle_sdp_query_end_of_record(goep_client_t * goep_client){ 241 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER){ 242 if (goep_client->mas_info.instance_id == goep_client->map_mas_instance_id){ 243 // Requested MAS Instance found, accept info 244 log_info("MAS Instance #%u found", goep_client->map_mas_instance_id); 245 goep_client->rfcomm_port = goep_client->mas_info.rfcomm_port; 246 goep_client->profile_supported_features = goep_client->mas_info.supported_features; 247 goep_client->map_supported_message_types = goep_client->mas_info.supported_message_types; 248 #ifdef ENABLE_GOEP_L2CAP 249 goep_client->l2cap_psm = goep_client->mas_info.l2cap_psm; 250 #endif 251 } 252 } 253 } 254 static uint8_t goep_client_start_connect(goep_client_t * goep_client){ 255 #ifdef ENABLE_GOEP_L2CAP 256 if (goep_client->l2cap_psm){ 257 log_info("Remote GOEP L2CAP PSM: %u", goep_client->l2cap_psm); 258 return l2cap_ertm_create_channel(&goep_client_packet_handler, goep_client->bd_addr, goep_client->l2cap_psm, 259 &goep_client->ertm_config, goep_client->ertm_buffer, 260 goep_client->ertm_buffer_size, &goep_client->bearer_cid); 261 } 262 #endif 263 log_info("Remote GOEP RFCOMM Server Channel: %u", goep_client->rfcomm_port); 264 return rfcomm_create_channel(&goep_client_packet_handler, goep_client->bd_addr, goep_client->rfcomm_port, &goep_client->bearer_cid); 265 } 266 267 static void goep_client_handle_sdp_query_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 268 goep_client_t * goep_client = goep_client_sdp_active; 269 btstack_assert(goep_client != NULL); 270 271 UNUSED(packet_type); 272 UNUSED(channel); 273 UNUSED(size); 274 275 des_iterator_t des_list_it; 276 des_iterator_t prot_it; 277 uint8_t status; 278 uint16_t record_index; 279 bool goep_server_found; 280 281 switch (hci_event_packet_get_type(packet)){ 282 case SDP_EVENT_QUERY_ATTRIBUTE_VALUE: 283 284 // detect new record 285 record_index = sdp_event_query_attribute_byte_get_record_id(packet); 286 if (record_index != goep_client->record_index){ 287 goep_client->record_index = record_index; 288 goep_client_handle_sdp_query_end_of_record(goep_client); 289 memset(&goep_client->mas_info, 0, sizeof(goep_client->mas_info)); 290 } 291 292 // check if relevant attribute 293 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)){ 294 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 295 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 296 case BLUETOOTH_ATTRIBUTE_MAS_INSTANCE_ID: 297 case BLUETOOTH_ATTRIBUTE_SUPPORTED_MESSAGE_TYPES: 298 #ifdef ENABLE_GOEP_L2CAP 299 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 300 #endif 301 break; 302 default: 303 return; 304 } 305 306 // warn if attribute too large to fit in our buffer 307 if (sdp_event_query_attribute_byte_get_attribute_length(packet) > goep_client_sdp_query_attribute_value_buffer_size) { 308 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)); 309 break; 310 } 311 312 // store single byte 313 goep_client_sdp_query_attribute_value[sdp_event_query_attribute_byte_get_data_offset(packet)] = sdp_event_query_attribute_byte_get_data(packet); 314 315 // wait until value fully received 316 if ((uint16_t)(sdp_event_query_attribute_byte_get_data_offset(packet)+1) != sdp_event_query_attribute_byte_get_attribute_length(packet)) break; 317 318 // process attributes 319 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)) { 320 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 321 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)) { 322 uint8_t *des_element; 323 uint8_t *element; 324 uint32_t uuid; 325 326 if (des_iterator_get_type(&des_list_it) != DE_DES) continue; 327 328 des_element = des_iterator_get_element(&des_list_it); 329 des_iterator_init(&prot_it, des_element); 330 331 // first element is UUID 332 element = des_iterator_get_element(&prot_it); 333 if (de_get_element_type(element) != DE_UUID) continue; 334 335 uuid = de_get_uuid32(element); 336 des_iterator_next(&prot_it); 337 if (!des_iterator_has_more(&prot_it)) continue; 338 339 // second element is RFCOMM server channel or L2CAP PSM 340 element = des_iterator_get_element(&prot_it); 341 if (uuid == BLUETOOTH_PROTOCOL_RFCOMM){ 342 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER) { 343 goep_client->mas_info.rfcomm_port = element[de_get_header_size(element)]; 344 } else { 345 goep_client->rfcomm_port = element[de_get_header_size(element)]; 346 } 347 } 348 } 349 break; 350 #ifdef ENABLE_GOEP_L2CAP 351 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 352 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER){ 353 de_element_get_uint16(goep_client_sdp_query_attribute_value, &goep_client->mas_info.l2cap_psm); 354 } else { 355 de_element_get_uint16(goep_client_sdp_query_attribute_value, &goep_client->l2cap_psm); 356 } 357 break; 358 #endif 359 // BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES == BLUETOOTH_ATTRIBUTE_MAP_SUPPORTED_FEATURES == 0x0317 360 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 361 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 362 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_32) break; 363 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER) { 364 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)); 365 } else { 366 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)); 367 } 368 break; 369 370 case BLUETOOTH_ATTRIBUTE_MAS_INSTANCE_ID: 371 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 372 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_8) break; 373 goep_client->mas_info.instance_id = goep_client_sdp_query_attribute_value[de_get_header_size(goep_client_sdp_query_attribute_value)]; 374 break; 375 376 case BLUETOOTH_ATTRIBUTE_SUPPORTED_MESSAGE_TYPES: 377 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 378 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_8) break; 379 goep_client->mas_info.supported_message_types = goep_client_sdp_query_attribute_value[de_get_header_size(goep_client_sdp_query_attribute_value)]; 380 break; 381 382 default: 383 break; 384 } 385 break; 386 387 case SDP_EVENT_QUERY_COMPLETE: 388 goep_client_sdp_active = NULL; 389 goep_client_handle_sdp_query_end_of_record(goep_client); 390 status = sdp_event_query_complete_get_status(packet); 391 if (status != ERROR_CODE_SUCCESS){ 392 log_info("GOEP client, SDP query failed 0x%02x", status); 393 goep_client->state = GOEP_CLIENT_INIT; 394 goep_client_emit_connected_event(goep_client, status); 395 break; 396 } 397 goep_server_found = false; 398 if (goep_client->rfcomm_port != 0){ 399 goep_server_found = true; 400 } 401 #ifdef ENABLE_GOEP_L2CAP 402 if (goep_client->l2cap_psm != 0){ 403 goep_server_found = true; 404 } 405 #endif 406 if (goep_server_found == false){ 407 log_info("No GOEP RFCOMM or L2CAP server found"); 408 goep_client->state = GOEP_CLIENT_INIT; 409 goep_client_emit_connected_event(goep_client, SDP_SERVICE_NOT_FOUND); 410 break; 411 } 412 (void) goep_client_start_connect(goep_client); 413 break; 414 415 default: 416 break; 417 } 418 } 419 420 static uint8_t * goep_client_get_outgoing_buffer(goep_client_t * goep_client){ 421 if (goep_client->l2cap_psm){ 422 return goep_packet_buffer; 423 } else { 424 return rfcomm_get_outgoing_buffer(); 425 } 426 } 427 428 static uint16_t goep_client_get_outgoing_buffer_len(goep_client_t * goep_client){ 429 if (goep_client->l2cap_psm){ 430 return sizeof(goep_packet_buffer); 431 } else { 432 return rfcomm_get_max_frame_size(goep_client->bearer_cid); 433 } 434 } 435 436 static void goep_client_packet_init(goep_client_t *goep_client, uint8_t opcode) { 437 if (goep_client->l2cap_psm != 0){ 438 } else { 439 rfcomm_reserve_packet_buffer(); 440 } 441 // store opcode for parsing of response 442 goep_client->obex_opcode = opcode; 443 } 444 445 void goep_client_init(void){ 446 goep_client_t * goep_client = &goep_client_singleton; 447 memset(goep_client, 0, sizeof(goep_client_t)); 448 goep_client->state = GOEP_CLIENT_INIT; 449 } 450 451 void goep_client_deinit(void){ 452 goep_clients = NULL; 453 goep_client_cid = 0; 454 memset(&goep_client_singleton, 0, sizeof(goep_client_t)); 455 memset(goep_client_sdp_query_attribute_value, 0, sizeof(goep_client_sdp_query_attribute_value)); 456 memset(goep_packet_buffer, 0, sizeof(goep_packet_buffer)); 457 } 458 459 static void geop_client_sdp_query_start(void * context){ 460 uint16_t goep_cid = (uint16_t)(uintptr_t) context; 461 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 462 if (context != NULL){ 463 goep_client_sdp_active = goep_client; 464 sdp_client_query_uuid16(&goep_client_handle_sdp_query_event, goep_client->bd_addr, 465 goep_client->uuid); 466 } 467 } 468 469 uint8_t 470 goep_client_connect(goep_client_t *goep_client, l2cap_ertm_config_t *l2cap_ertm_config, uint8_t *l2cap_ertm_buffer, 471 uint16_t l2cap_ertm_buffer_size, btstack_packet_handler_t handler, bd_addr_t addr, uint16_t uuid, 472 uint8_t instance_id, uint16_t *out_cid) { 473 // get new goep cid, skip 0x0000 474 goep_client_cid++; 475 if (goep_client_cid == 0) { 476 goep_client_cid = 1; 477 } 478 479 // add to list 480 memset(goep_client, 0, sizeof(goep_client_t)); 481 goep_client->state = GOEP_CLIENT_W4_SDP; 482 goep_client->cid = goep_client_cid; 483 goep_client->client_handler = handler; 484 goep_client->uuid = uuid; 485 goep_client->map_mas_instance_id = instance_id; 486 goep_client->profile_supported_features = PROFILE_FEATURES_NOT_PRESENT; 487 (void)memcpy(goep_client->bd_addr, addr, 6); 488 goep_client->sdp_query_request.callback = geop_client_sdp_query_start; 489 goep_client->sdp_query_request.context = (void *)(uintptr_t) goep_client->cid; 490 goep_client->obex_connection_id = OBEX_CONNECTION_ID_INVALID; 491 #ifdef ENABLE_GOEP_L2CAP 492 memcpy(&goep_client->ertm_config, l2cap_ertm_config, sizeof(l2cap_ertm_config_t)); 493 goep_client->ertm_buffer_size = l2cap_ertm_buffer_size; 494 goep_client->ertm_buffer = l2cap_ertm_buffer; 495 #endif 496 btstack_linked_list_add(&goep_clients, (btstack_linked_item_t *) goep_client); 497 498 // request sdp query 499 sdp_client_register_query_callback(&goep_client->sdp_query_request); 500 501 *out_cid = goep_client->cid; 502 return ERROR_CODE_SUCCESS; 503 } 504 505 #ifdef ENABLE_GOEP_L2CAP 506 uint8_t goep_client_connect_l2cap(goep_client_t *goep_client, l2cap_ertm_config_t *l2cap_ertm_config, uint8_t *l2cap_ertm_buffer, 507 uint16_t l2cap_ertm_buffer_size, btstack_packet_handler_t handler, bd_addr_t addr, uint16_t l2cap_psm, 508 uint16_t *out_cid){ 509 // get new goep cid, skip 0x0000 510 goep_client_cid++; 511 if (goep_client_cid == 0) { 512 goep_client_cid = 1; 513 } 514 515 // add to list 516 memset(goep_client, 0, sizeof(goep_client_t)); 517 goep_client->state = GOEP_CLIENT_W4_SDP; 518 goep_client->cid = goep_client_cid; 519 goep_client->client_handler = handler; 520 goep_client->profile_supported_features = PROFILE_FEATURES_NOT_PRESENT; 521 (void)memcpy(goep_client->bd_addr, addr, 6); 522 goep_client->obex_connection_id = OBEX_CONNECTION_ID_INVALID; 523 memcpy(&goep_client->ertm_config, l2cap_ertm_config, sizeof(l2cap_ertm_config_t)); 524 goep_client->ertm_buffer_size = l2cap_ertm_buffer_size; 525 goep_client->ertm_buffer = l2cap_ertm_buffer; 526 btstack_linked_list_add(&goep_clients, (btstack_linked_item_t *) goep_client); 527 528 goep_client->l2cap_psm = l2cap_psm; 529 530 *out_cid = goep_client->cid; 531 532 return goep_client_start_connect(goep_client); 533 } 534 #endif 535 536 uint8_t goep_client_create_connection(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t uuid, uint16_t * out_cid){ 537 goep_client_t * goep_client = &goep_client_singleton; 538 if (goep_client->state != GOEP_CLIENT_INIT) { 539 return BTSTACK_MEMORY_ALLOC_FAILED; 540 } 541 #ifdef ENABLE_GOEP_L2CAP 542 return goep_client_connect(goep_client, &goep_client_singleton_ertm_config, goep_client_singleton_ertm_buffer, 543 sizeof(goep_client_singleton_ertm_buffer), handler, addr, uuid, 0, out_cid); 544 #else 545 return goep_client_connect(goep_client, NULL, NULL, 546 0, handler, addr, uuid, 0, out_cid); 547 #endif 548 549 } 550 551 uint32_t goep_client_get_pbap_supported_features(uint16_t goep_cid){ 552 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 553 if (goep_client == NULL){ 554 return PBAP_FEATURES_NOT_PRESENT; 555 } 556 return goep_client->profile_supported_features; 557 } 558 559 uint32_t goep_client_get_map_supported_features(uint16_t goep_cid){ 560 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 561 if (goep_client == NULL){ 562 return PROFILE_FEATURES_NOT_PRESENT; 563 } 564 return goep_client->profile_supported_features; 565 } 566 567 uint8_t goep_client_get_map_mas_instance_id(uint16_t goep_cid){ 568 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 569 if (goep_client == NULL){ 570 return 0; 571 } 572 return goep_client->map_mas_instance_id; 573 } 574 575 uint8_t goep_client_get_map_supported_message_types(uint16_t goep_cid){ 576 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 577 if (goep_client == NULL){ 578 return 0; 579 } 580 return goep_client->map_supported_message_types; 581 } 582 583 584 bool goep_client_version_20_or_higher(uint16_t goep_cid){ 585 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 586 if (goep_client == NULL){ 587 return false; 588 } 589 return goep_client->l2cap_psm != 0; 590 } 591 592 void goep_client_request_can_send_now(uint16_t goep_cid){ 593 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 594 if (goep_client == NULL){ 595 return; 596 } 597 if (goep_client->l2cap_psm){ 598 l2cap_request_can_send_now_event(goep_client->bearer_cid); 599 } else { 600 rfcomm_request_can_send_now_event(goep_client->bearer_cid); 601 } 602 } 603 604 uint8_t goep_client_disconnect(uint16_t goep_cid){ 605 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 606 if (goep_client == NULL){ 607 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 608 } 609 if (goep_client->l2cap_psm){ 610 l2cap_disconnect(goep_client->bearer_cid); 611 } else { 612 rfcomm_disconnect(goep_client->bearer_cid); 613 } 614 return ERROR_CODE_SUCCESS; 615 } 616 617 void goep_client_set_connection_id(uint16_t goep_cid, uint32_t connection_id){ 618 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 619 if (goep_client == NULL){ 620 return; 621 } 622 goep_client->obex_connection_id = connection_id; 623 } 624 625 uint8_t goep_client_get_request_opcode(uint16_t goep_cid){ 626 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 627 if (goep_client == NULL){ 628 return 0; 629 } 630 return goep_client->obex_opcode; 631 } 632 633 void goep_client_request_create_connect(uint16_t goep_cid, uint8_t obex_version_number, uint8_t flags, uint16_t maximum_obex_packet_length){ 634 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 635 if (goep_client == NULL){ 636 return; 637 } 638 goep_client_packet_init(goep_client, OBEX_OPCODE_CONNECT); 639 // workaround: limit OBEX packet len to L2CAP/RFCOMM MTU to avoid handling of fragemented packets 640 maximum_obex_packet_length = btstack_min(maximum_obex_packet_length, goep_client->bearer_mtu); 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_request_create_connect(buffer, buffer_len, obex_version_number, flags, maximum_obex_packet_length); 645 } 646 647 void goep_client_request_create_get(uint16_t goep_cid){ 648 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 649 if (goep_client == NULL){ 650 return; 651 } 652 goep_client_packet_init(goep_client, OBEX_OPCODE_GET | OBEX_OPCODE_FINAL_BIT_MASK); 653 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 654 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 655 obex_message_builder_request_create_get(buffer, buffer_len, goep_client->obex_connection_id); 656 } 657 658 void goep_client_request_create_put(uint16_t goep_cid){ 659 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 660 if (goep_client == NULL){ 661 return; 662 } 663 goep_client_packet_init(goep_client, OBEX_OPCODE_PUT | OBEX_OPCODE_FINAL_BIT_MASK); 664 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 665 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 666 obex_message_builder_request_create_put(buffer, buffer_len, goep_client->obex_connection_id); 667 } 668 669 void goep_client_request_create_set_path(uint16_t goep_cid, uint8_t flags){ 670 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 671 if (goep_client == NULL){ 672 return; 673 } 674 goep_client_packet_init(goep_client, OBEX_OPCODE_SETPATH); 675 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 676 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 677 obex_message_builder_request_create_set_path(buffer, buffer_len, flags, goep_client->obex_connection_id); 678 } 679 680 void goep_client_request_create_abort(uint16_t goep_cid){ 681 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 682 if (goep_client == NULL){ 683 return; 684 } 685 goep_client_packet_init(goep_client, OBEX_OPCODE_ABORT); 686 687 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 688 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 689 obex_message_builder_request_create_abort(buffer, buffer_len, goep_client->obex_connection_id); 690 } 691 692 void goep_client_request_create_disconnect(uint16_t goep_cid){ 693 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 694 if (goep_client == NULL){ 695 return; 696 } 697 goep_client_packet_init(goep_client, OBEX_OPCODE_DISCONNECT); 698 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 699 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 700 obex_message_builder_request_create_disconnect(buffer, buffer_len, goep_client->obex_connection_id); 701 } 702 703 void goep_client_header_add_byte(uint16_t goep_cid, uint8_t header_type, uint8_t value){ 704 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 705 if (goep_client == NULL){ 706 return; 707 } 708 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 709 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 710 obex_message_builder_header_add_byte(buffer, buffer_len, header_type, value); 711 } 712 713 void goep_client_header_add_word(uint16_t goep_cid, uint8_t header_type, uint32_t value){ 714 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 715 if (goep_client == NULL){ 716 return; 717 } 718 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 719 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 720 obex_message_builder_header_add_word(buffer, buffer_len, header_type, value); 721 } 722 723 void goep_client_header_add_variable(uint16_t goep_cid, uint8_t header_type, const uint8_t * header_data, uint16_t header_data_length){ 724 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 725 if (goep_client == NULL){ 726 return; 727 } 728 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 729 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 730 obex_message_builder_header_add_variable(buffer, buffer_len, header_type, header_data, header_data_length); 731 } 732 733 void goep_client_header_add_srm_enable(uint16_t goep_cid){ 734 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 735 if (goep_client == NULL){ 736 return; 737 } 738 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 739 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 740 obex_message_builder_header_add_srm_enable(buffer, buffer_len); 741 } 742 743 void goep_client_header_add_target(uint16_t goep_cid, const uint8_t * target, uint16_t length){ 744 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 745 if (goep_client == NULL){ 746 return; 747 } 748 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 749 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 750 obex_message_builder_header_add_target(buffer, buffer_len, target, length); 751 } 752 753 void goep_client_header_add_application_parameters(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 754 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 755 if (goep_client == NULL){ 756 return; 757 } 758 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 759 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 760 obex_message_builder_header_add_application_parameters(buffer, buffer_len, data, length); 761 } 762 763 void goep_client_header_add_challenge_response(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 764 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 765 if (goep_client == NULL){ 766 return; 767 } 768 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 769 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 770 obex_message_builder_header_add_challenge_response(buffer, buffer_len, data, length); 771 } 772 773 void goep_client_body_add_static(uint16_t goep_cid, const uint8_t * data, uint32_t length){ 774 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 775 if (goep_client == NULL){ 776 return; 777 } 778 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 779 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 780 obex_message_builder_body_add_static(buffer, buffer_len, data, length); 781 } 782 783 uint16_t goep_client_body_get_outgoing_buffer_len(uint16_t goep_cid) { 784 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 785 if (goep_client == NULL){ 786 return 0; 787 } 788 return goep_client_get_outgoing_buffer_len(goep_client); 789 }; 790 791 void goep_client_body_fillup_static(uint16_t goep_cid, const uint8_t * data, uint32_t length, uint32_t * ret_length){ 792 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 793 if (goep_client == NULL){ 794 return; 795 } 796 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 797 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 798 obex_message_builder_body_fillup_static(buffer, buffer_len, data, length, ret_length); 799 } 800 801 void goep_client_header_add_name(uint16_t goep_cid, const char * name){ 802 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 803 if (goep_client == NULL){ 804 return; 805 } 806 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 807 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 808 obex_message_builder_header_add_name(buffer, buffer_len, name); 809 } 810 811 void goep_client_header_add_name_prefix(uint16_t goep_cid, const char * name, uint16_t name_len){ 812 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 813 if (goep_client == NULL){ 814 return; 815 } 816 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 817 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 818 obex_message_builder_header_add_name_prefix(buffer, buffer_len, name, name_len); 819 } 820 821 void goep_client_header_add_unicode_prefix(uint16_t goep_cid, uint8_t header_id, const char * name, uint16_t name_len){ 822 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 823 if (goep_client == NULL){ 824 return; 825 } 826 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 827 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 828 obex_message_builder_header_add_unicode_prefix(buffer, buffer_len, header_id, name, name_len); 829 } 830 831 void goep_client_header_add_type(uint16_t goep_cid, const char * type){ 832 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 833 if (goep_client == NULL){ 834 return; 835 } 836 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 837 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 838 obex_message_builder_header_add_type(buffer, buffer_len, type); 839 } 840 841 void goep_client_header_add_length(uint16_t goep_cid, uint32_t length){ 842 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 843 if (goep_client == NULL){ 844 return; 845 } 846 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 847 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 848 obex_message_builder_header_add_length(buffer, buffer_len, length); 849 } 850 851 uint16_t goep_client_request_get_max_body_size(uint16_t goep_cid){ 852 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 853 if (goep_client == NULL){ 854 return 0; 855 } 856 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 857 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 858 uint16_t pos = big_endian_read_16(buffer, 1); 859 return buffer_len - pos; 860 } 861 862 int goep_client_execute(uint16_t goep_cid){ 863 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 864 if (goep_client == NULL){ 865 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 866 } 867 return goep_client_execute_with_final_bit (goep_cid, true); 868 } 869 870 int goep_client_execute_with_final_bit(uint16_t goep_cid, bool final){ 871 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 872 if (goep_client == NULL){ 873 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 874 } 875 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 876 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 877 878 obex_message_builder_set_final_bit (buffer, buffer_len, final); 879 880 uint16_t pos = big_endian_read_16(buffer, 1); 881 if (goep_client->l2cap_psm){ 882 return l2cap_send(goep_client->bearer_cid, buffer, pos); 883 } else { 884 return rfcomm_send_prepared(goep_client->bearer_cid, pos); 885 } 886 } 887 888