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 return NULL; 174 } 175 } 176 177 static void goep_client_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 178 UNUSED(channel); 179 UNUSED(size); 180 goep_client_t * goep_client; 181 switch (packet_type){ 182 case HCI_EVENT_PACKET: 183 switch (hci_event_packet_get_type(packet)) { 184 #ifdef ENABLE_GOEP_L2CAP 185 case L2CAP_EVENT_CHANNEL_OPENED: 186 goep_client = goep_client_for_bearer_cid(l2cap_event_channel_opened_get_local_cid(packet)); 187 btstack_assert(goep_client != NULL); 188 goep_client_handle_connection_opened(goep_client, l2cap_event_channel_opened_get_status(packet), 189 btstack_min(l2cap_event_channel_opened_get_remote_mtu(packet), l2cap_event_channel_opened_get_local_mtu(packet))); 190 break; 191 case L2CAP_EVENT_CAN_SEND_NOW: 192 goep_client = goep_client_for_bearer_cid(l2cap_event_can_send_now_get_local_cid(packet)); 193 btstack_assert(goep_client != NULL); 194 goep_client_emit_can_send_now_event(goep_client); 195 break; 196 case L2CAP_EVENT_CHANNEL_CLOSED: 197 goep_client = goep_client_for_bearer_cid(l2cap_event_channel_closed_get_local_cid(packet)); 198 btstack_assert(goep_client != NULL); 199 goep_client_handle_connection_close(goep_client); 200 break; 201 #endif 202 case RFCOMM_EVENT_CHANNEL_OPENED: 203 goep_client = goep_client_for_bearer_cid(rfcomm_event_channel_opened_get_rfcomm_cid(packet)); 204 btstack_assert(goep_client != NULL); 205 goep_client_handle_connection_opened(goep_client, rfcomm_event_channel_opened_get_status(packet), rfcomm_event_channel_opened_get_max_frame_size(packet)); 206 return; 207 case RFCOMM_EVENT_CAN_SEND_NOW: 208 goep_client = goep_client_for_bearer_cid(rfcomm_event_can_send_now_get_rfcomm_cid(packet)); 209 btstack_assert(goep_client != NULL); 210 goep_client_emit_can_send_now_event(goep_client); 211 break; 212 case RFCOMM_EVENT_CHANNEL_CLOSED: 213 goep_client = goep_client_for_bearer_cid(rfcomm_event_channel_closed_get_rfcomm_cid(packet)); 214 btstack_assert(goep_client != NULL); 215 goep_client_handle_connection_close(goep_client); 216 break; 217 default: 218 break; 219 } 220 break; 221 case L2CAP_DATA_PACKET: 222 case RFCOMM_DATA_PACKET: 223 goep_client = goep_client_for_bearer_cid(channel); 224 btstack_assert(goep_client != NULL); 225 goep_client->client_handler(GOEP_DATA_PACKET, goep_client->cid, packet, size); 226 break; 227 default: 228 break; 229 } 230 } 231 232 static void goep_client_handle_sdp_query_end_of_record(goep_client_t * goep_client){ 233 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER){ 234 if (goep_client->mas_info.instance_id == goep_client->map_mas_instance_id){ 235 // Requested MAS Instance found, accept info 236 log_info("MAS Instance #%u found", goep_client->map_mas_instance_id); 237 goep_client->rfcomm_port = goep_client->mas_info.rfcomm_port; 238 goep_client->profile_supported_features = goep_client->mas_info.supported_features; 239 goep_client->map_supported_message_types = goep_client->mas_info.supported_message_types; 240 #ifdef ENABLE_GOEP_L2CAP 241 goep_client->l2cap_psm = goep_client->mas_info.l2cap_psm; 242 #endif 243 } 244 } 245 } 246 static uint8_t goep_client_start_connect(goep_client_t * goep_client){ 247 #ifdef ENABLE_GOEP_L2CAP 248 if (goep_client->l2cap_psm){ 249 log_info("Remote GOEP L2CAP PSM: %u", goep_client->l2cap_psm); 250 return l2cap_ertm_create_channel(&goep_client_packet_handler, goep_client->bd_addr, goep_client->l2cap_psm, 251 &goep_client->ertm_config, goep_client->ertm_buffer, 252 goep_client->ertm_buffer_size, &goep_client->bearer_cid); 253 } 254 #endif 255 log_info("Remote GOEP RFCOMM Server Channel: %u", goep_client->rfcomm_port); 256 return rfcomm_create_channel(&goep_client_packet_handler, goep_client->bd_addr, goep_client->rfcomm_port, &goep_client->bearer_cid); 257 } 258 259 static void goep_client_handle_sdp_query_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 260 goep_client_t * goep_client = goep_client_sdp_active; 261 btstack_assert(goep_client != NULL); 262 263 UNUSED(packet_type); 264 UNUSED(channel); 265 UNUSED(size); 266 267 des_iterator_t des_list_it; 268 des_iterator_t prot_it; 269 uint8_t status; 270 uint16_t record_index; 271 bool goep_server_found; 272 273 switch (hci_event_packet_get_type(packet)){ 274 case SDP_EVENT_QUERY_ATTRIBUTE_VALUE: 275 276 // detect new record 277 record_index = sdp_event_query_attribute_byte_get_record_id(packet); 278 if (record_index != goep_client->record_index){ 279 goep_client->record_index = record_index; 280 goep_client_handle_sdp_query_end_of_record(goep_client); 281 memset(&goep_client->mas_info, 0, sizeof(goep_client->mas_info)); 282 } 283 284 // check if relevant attribute 285 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)){ 286 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 287 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 288 case BLUETOOTH_ATTRIBUTE_MAS_INSTANCE_ID: 289 case BLUETOOTH_ATTRIBUTE_SUPPORTED_MESSAGE_TYPES: 290 #ifdef ENABLE_GOEP_L2CAP 291 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 292 #endif 293 break; 294 default: 295 return; 296 } 297 298 // warn if attribute too large to fit in our buffer 299 if (sdp_event_query_attribute_byte_get_attribute_length(packet) > goep_client_sdp_query_attribute_value_buffer_size) { 300 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)); 301 break; 302 } 303 304 // store single byte 305 goep_client_sdp_query_attribute_value[sdp_event_query_attribute_byte_get_data_offset(packet)] = sdp_event_query_attribute_byte_get_data(packet); 306 307 // wait until value fully received 308 if ((uint16_t)(sdp_event_query_attribute_byte_get_data_offset(packet)+1) != sdp_event_query_attribute_byte_get_attribute_length(packet)) break; 309 310 // process attributes 311 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)) { 312 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 313 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)) { 314 uint8_t *des_element; 315 uint8_t *element; 316 uint32_t uuid; 317 318 if (des_iterator_get_type(&des_list_it) != DE_DES) continue; 319 320 des_element = des_iterator_get_element(&des_list_it); 321 des_iterator_init(&prot_it, des_element); 322 323 // first element is UUID 324 element = des_iterator_get_element(&prot_it); 325 if (de_get_element_type(element) != DE_UUID) continue; 326 327 uuid = de_get_uuid32(element); 328 des_iterator_next(&prot_it); 329 if (!des_iterator_has_more(&prot_it)) continue; 330 331 // second element is RFCOMM server channel or L2CAP PSM 332 element = des_iterator_get_element(&prot_it); 333 if (uuid == BLUETOOTH_PROTOCOL_RFCOMM){ 334 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER) { 335 goep_client->mas_info.rfcomm_port = element[de_get_header_size(element)]; 336 } else { 337 goep_client->rfcomm_port = element[de_get_header_size(element)]; 338 } 339 } 340 } 341 break; 342 #ifdef ENABLE_GOEP_L2CAP 343 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 344 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER){ 345 de_element_get_uint16(goep_client_sdp_query_attribute_value, &goep_client->mas_info.l2cap_psm); 346 } else { 347 de_element_get_uint16(goep_client_sdp_query_attribute_value, &goep_client->l2cap_psm); 348 } 349 break; 350 #endif 351 // BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES == BLUETOOTH_ATTRIBUTE_MAP_SUPPORTED_FEATURES == 0x0317 352 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 353 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 354 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_32) break; 355 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER) { 356 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)); 357 } else { 358 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)); 359 } 360 break; 361 362 case BLUETOOTH_ATTRIBUTE_MAS_INSTANCE_ID: 363 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 364 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_8) break; 365 goep_client->mas_info.instance_id = goep_client_sdp_query_attribute_value[de_get_header_size(goep_client_sdp_query_attribute_value)]; 366 break; 367 368 case BLUETOOTH_ATTRIBUTE_SUPPORTED_MESSAGE_TYPES: 369 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 370 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_8) break; 371 goep_client->mas_info.supported_message_types = goep_client_sdp_query_attribute_value[de_get_header_size(goep_client_sdp_query_attribute_value)]; 372 break; 373 374 default: 375 break; 376 } 377 break; 378 379 case SDP_EVENT_QUERY_COMPLETE: 380 goep_client_sdp_active = NULL; 381 goep_client_handle_sdp_query_end_of_record(goep_client); 382 status = sdp_event_query_complete_get_status(packet); 383 if (status != ERROR_CODE_SUCCESS){ 384 log_info("GOEP client, SDP query failed 0x%02x", status); 385 goep_client->state = GOEP_CLIENT_INIT; 386 goep_client_emit_connected_event(goep_client, status); 387 break; 388 } 389 goep_server_found = false; 390 if (goep_client->rfcomm_port != 0){ 391 goep_server_found = true; 392 } 393 #ifdef ENABLE_GOEP_L2CAP 394 if (goep_client->l2cap_psm != 0){ 395 goep_server_found = true; 396 } 397 #endif 398 if (goep_server_found == false){ 399 log_info("No GOEP RFCOMM or L2CAP server found"); 400 goep_client->state = GOEP_CLIENT_INIT; 401 goep_client_emit_connected_event(goep_client, SDP_SERVICE_NOT_FOUND); 402 break; 403 } 404 (void) goep_client_start_connect(goep_client); 405 break; 406 407 default: 408 break; 409 } 410 } 411 412 static uint8_t * goep_client_get_outgoing_buffer(goep_client_t * goep_client){ 413 if (goep_client->l2cap_psm){ 414 return goep_packet_buffer; 415 } else { 416 return rfcomm_get_outgoing_buffer(); 417 } 418 } 419 420 static uint16_t goep_client_get_outgoing_buffer_len(goep_client_t * goep_client){ 421 if (goep_client->l2cap_psm){ 422 return sizeof(goep_packet_buffer); 423 } else { 424 return rfcomm_get_max_frame_size(goep_client->bearer_cid); 425 } 426 } 427 428 static void goep_client_packet_init(goep_client_t *goep_client, uint8_t opcode) { 429 if (goep_client->l2cap_psm != 0){ 430 } else { 431 rfcomm_reserve_packet_buffer(); 432 } 433 // store opcode for parsing of response 434 goep_client->obex_opcode = opcode; 435 } 436 437 void goep_client_init(void){ 438 goep_client_t * goep_client = &goep_client_singleton; 439 memset(goep_client, 0, sizeof(goep_client_t)); 440 goep_client->state = GOEP_CLIENT_INIT; 441 } 442 443 void goep_client_deinit(void){ 444 goep_clients = NULL; 445 goep_client_cid = 0; 446 memset(&goep_client_singleton, 0, sizeof(goep_client_t)); 447 memset(goep_client_sdp_query_attribute_value, 0, sizeof(goep_client_sdp_query_attribute_value)); 448 memset(goep_packet_buffer, 0, sizeof(goep_packet_buffer)); 449 } 450 451 static void geop_client_sdp_query_start(void * context){ 452 uint16_t goep_cid = (uint16_t)(uintptr_t) context; 453 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 454 if (context != NULL){ 455 goep_client_sdp_active = goep_client; 456 sdp_client_query_uuid16(&goep_client_handle_sdp_query_event, goep_client->bd_addr, 457 goep_client->uuid); 458 } 459 } 460 461 uint8_t 462 goep_client_connect(goep_client_t *goep_client, l2cap_ertm_config_t *l2cap_ertm_config, uint8_t *l2cap_ertm_buffer, 463 uint16_t l2cap_ertm_buffer_size, btstack_packet_handler_t handler, bd_addr_t addr, uint16_t uuid, 464 uint8_t instance_id, uint16_t *out_cid) { 465 // get new goep cid, skip 0x0000 466 goep_client_cid++; 467 if (goep_client_cid == 0) { 468 goep_client_cid = 1; 469 } 470 471 // add to list 472 memset(goep_client, 0, sizeof(goep_client_t)); 473 goep_client->state = GOEP_CLIENT_W4_SDP; 474 goep_client->cid = goep_client_cid; 475 goep_client->client_handler = handler; 476 goep_client->uuid = uuid; 477 goep_client->map_mas_instance_id = instance_id; 478 goep_client->profile_supported_features = PROFILE_FEATURES_NOT_PRESENT; 479 (void)memcpy(goep_client->bd_addr, addr, 6); 480 goep_client->sdp_query_request.callback = geop_client_sdp_query_start; 481 goep_client->sdp_query_request.context = (void *)(uintptr_t) goep_client->cid; 482 goep_client->obex_connection_id = OBEX_CONNECTION_ID_INVALID; 483 #ifdef ENABLE_GOEP_L2CAP 484 memcpy(&goep_client->ertm_config, l2cap_ertm_config, sizeof(l2cap_ertm_config_t)); 485 goep_client->ertm_buffer_size = l2cap_ertm_buffer_size; 486 goep_client->ertm_buffer = l2cap_ertm_buffer; 487 #endif 488 btstack_linked_list_add(&goep_clients, (btstack_linked_item_t *) goep_client); 489 490 // request sdp query 491 sdp_client_register_query_callback(&goep_client->sdp_query_request); 492 493 *out_cid = goep_client->cid; 494 return ERROR_CODE_SUCCESS; 495 } 496 497 #ifdef ENABLE_GOEP_L2CAP 498 uint8_t goep_client_connect_l2cap(goep_client_t *goep_client, l2cap_ertm_config_t *l2cap_ertm_config, uint8_t *l2cap_ertm_buffer, 499 uint16_t l2cap_ertm_buffer_size, btstack_packet_handler_t handler, bd_addr_t addr, uint16_t l2cap_psm, 500 uint16_t *out_cid){ 501 // get new goep cid, skip 0x0000 502 goep_client_cid++; 503 if (goep_client_cid == 0) { 504 goep_client_cid = 1; 505 } 506 507 // add to list 508 memset(goep_client, 0, sizeof(goep_client_t)); 509 goep_client->state = GOEP_CLIENT_W4_SDP; 510 goep_client->cid = goep_client_cid; 511 goep_client->client_handler = handler; 512 goep_client->profile_supported_features = PROFILE_FEATURES_NOT_PRESENT; 513 (void)memcpy(goep_client->bd_addr, addr, 6); 514 goep_client->sdp_query_request.callback = geop_client_sdp_query_start; 515 goep_client->sdp_query_request.context = (void *)(uintptr_t) goep_client->cid; 516 goep_client->obex_connection_id = OBEX_CONNECTION_ID_INVALID; 517 memcpy(&goep_client->ertm_config, l2cap_ertm_config, sizeof(l2cap_ertm_config_t)); 518 goep_client->ertm_buffer_size = l2cap_ertm_buffer_size; 519 goep_client->ertm_buffer = l2cap_ertm_buffer; 520 btstack_linked_list_add(&goep_clients, (btstack_linked_item_t *) goep_client); 521 522 goep_client->l2cap_psm = l2cap_psm; 523 524 *out_cid = goep_client->cid; 525 526 return goep_client_start_connect(goep_client); 527 } 528 #endif 529 530 uint8_t goep_client_create_connection(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t uuid, uint16_t * out_cid){ 531 goep_client_t * goep_client = &goep_client_singleton; 532 if (goep_client->state != GOEP_CLIENT_INIT) { 533 return BTSTACK_MEMORY_ALLOC_FAILED; 534 } 535 return goep_client_connect(goep_client, &goep_client_singleton_ertm_config, goep_client_singleton_ertm_buffer, 536 sizeof(goep_client_singleton_ertm_buffer), handler, addr, uuid, 0, out_cid); 537 } 538 539 uint32_t goep_client_get_pbap_supported_features(uint16_t goep_cid){ 540 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 541 if (goep_client == NULL){ 542 return PBAP_FEATURES_NOT_PRESENT; 543 } 544 return goep_client->profile_supported_features; 545 } 546 547 uint32_t goep_client_get_map_supported_features(uint16_t goep_cid){ 548 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 549 if (goep_client == NULL){ 550 return PROFILE_FEATURES_NOT_PRESENT; 551 } 552 return goep_client->profile_supported_features; 553 } 554 555 uint8_t goep_client_get_map_mas_instance_id(uint16_t goep_cid){ 556 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 557 if (goep_client == NULL){ 558 return 0; 559 } 560 return goep_client->map_mas_instance_id; 561 } 562 563 uint8_t goep_client_get_map_suported_message_types(uint16_t goep_cid){ 564 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 565 if (goep_client == NULL){ 566 return 0; 567 } 568 return goep_client->map_supported_message_types; 569 } 570 571 572 bool goep_client_version_20_or_higher(uint16_t goep_cid){ 573 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 574 if (goep_client == NULL){ 575 return false; 576 } 577 return goep_client->l2cap_psm != 0; 578 } 579 580 void goep_client_request_can_send_now(uint16_t goep_cid){ 581 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 582 if (goep_client == NULL){ 583 return; 584 } 585 if (goep_client->l2cap_psm){ 586 l2cap_request_can_send_now_event(goep_client->bearer_cid); 587 } else { 588 rfcomm_request_can_send_now_event(goep_client->bearer_cid); 589 } 590 } 591 592 uint8_t goep_client_disconnect(uint16_t goep_cid){ 593 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 594 if (goep_client == NULL){ 595 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 596 } 597 if (goep_client->l2cap_psm){ 598 l2cap_disconnect(goep_client->bearer_cid); 599 } else { 600 rfcomm_disconnect(goep_client->bearer_cid); 601 } 602 return ERROR_CODE_SUCCESS; 603 } 604 605 void goep_client_set_connection_id(uint16_t goep_cid, uint32_t connection_id){ 606 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 607 if (goep_client == NULL){ 608 return; 609 } 610 goep_client->obex_connection_id = connection_id; 611 } 612 613 uint8_t goep_client_get_request_opcode(uint16_t goep_cid){ 614 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 615 if (goep_client == NULL){ 616 return 0; 617 } 618 return goep_client->obex_opcode; 619 } 620 621 void goep_client_request_create_connect(uint16_t goep_cid, uint8_t obex_version_number, uint8_t flags, uint16_t maximum_obex_packet_length){ 622 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 623 if (goep_client == NULL){ 624 return; 625 } 626 goep_client_packet_init(goep_client, OBEX_OPCODE_CONNECT); 627 // workaround: limit OBEX packet len to L2CAP/RFCOMM MTU to avoid handling of fragemented packets 628 maximum_obex_packet_length = btstack_min(maximum_obex_packet_length, goep_client->bearer_mtu); 629 630 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 631 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 632 obex_message_builder_request_create_connect(buffer, buffer_len, obex_version_number, flags, maximum_obex_packet_length); 633 } 634 635 void goep_client_request_create_get(uint16_t goep_cid){ 636 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 637 if (goep_client == NULL){ 638 return; 639 } 640 goep_client_packet_init(goep_client, OBEX_OPCODE_GET | OBEX_OPCODE_FINAL_BIT_MASK); 641 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 642 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 643 obex_message_builder_request_create_get(buffer, buffer_len, goep_client->obex_connection_id); 644 } 645 646 void goep_client_request_create_put(uint16_t goep_cid){ 647 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 648 if (goep_client == NULL){ 649 return; 650 } 651 goep_client_packet_init(goep_client, OBEX_OPCODE_PUT | OBEX_OPCODE_FINAL_BIT_MASK); 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_request_create_put(buffer, buffer_len, goep_client->obex_connection_id); 655 } 656 657 void goep_client_request_create_set_path(uint16_t goep_cid, uint8_t flags){ 658 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 659 if (goep_client == NULL){ 660 return; 661 } 662 goep_client_packet_init(goep_client, OBEX_OPCODE_SETPATH); 663 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 664 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 665 obex_message_builder_request_create_set_path(buffer, buffer_len, flags, goep_client->obex_connection_id); 666 } 667 668 void goep_client_request_create_abort(uint16_t goep_cid){ 669 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 670 if (goep_client == NULL){ 671 return; 672 } 673 goep_client_packet_init(goep_client, OBEX_OPCODE_ABORT); 674 675 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_abort(buffer, buffer_len, goep_client->obex_connection_id); 678 } 679 680 void goep_client_request_create_disconnect(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_DISCONNECT); 686 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 687 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 688 obex_message_builder_request_create_disconnect(buffer, buffer_len, goep_client->obex_connection_id); 689 } 690 691 void goep_client_header_add_byte(uint16_t goep_cid, uint8_t header_type, uint8_t value){ 692 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 693 if (goep_client == NULL){ 694 return; 695 } 696 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 697 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 698 obex_message_builder_header_add_byte(buffer, buffer_len, header_type, value); 699 } 700 701 void goep_client_header_add_word(uint16_t goep_cid, uint8_t header_type, uint32_t value){ 702 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 703 if (goep_client == NULL){ 704 return; 705 } 706 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 707 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 708 obex_message_builder_header_add_word(buffer, buffer_len, header_type, value); 709 } 710 711 void goep_client_header_add_variable(uint16_t goep_cid, uint8_t header_type, const uint8_t * header_data, uint16_t header_data_length){ 712 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 713 if (goep_client == NULL){ 714 return; 715 } 716 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 717 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 718 obex_message_builder_header_add_variable(buffer, buffer_len, header_type, header_data, header_data_length); 719 } 720 721 void goep_client_header_add_srm_enable(uint16_t goep_cid){ 722 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 723 if (goep_client == NULL){ 724 return; 725 } 726 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 727 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 728 obex_message_builder_header_add_srm_enable(buffer, buffer_len); 729 } 730 731 void goep_client_header_add_target(uint16_t goep_cid, const uint8_t * target, uint16_t length){ 732 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 733 if (goep_client == NULL){ 734 return; 735 } 736 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 737 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 738 obex_message_builder_header_add_target(buffer, buffer_len, target, length); 739 } 740 741 void goep_client_header_add_application_parameters(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 742 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 743 if (goep_client == NULL){ 744 return; 745 } 746 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 747 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 748 obex_message_builder_header_add_application_parameters(buffer, buffer_len, data, length); 749 } 750 751 void goep_client_header_add_challenge_response(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 752 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 753 if (goep_client == NULL){ 754 return; 755 } 756 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 757 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 758 obex_message_builder_header_add_challenge_response(buffer, buffer_len, data, length); 759 } 760 761 void goep_client_body_add_static(uint16_t goep_cid, const uint8_t * data, uint32_t length){ 762 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 763 if (goep_client == NULL){ 764 return; 765 } 766 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 767 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 768 obex_message_builder_body_add_static(buffer, buffer_len, data, length); 769 } 770 771 uint16_t goep_client_body_get_outgoing_buffer_len(uint16_t goep_cid) { 772 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 773 if (goep_client == NULL){ 774 return 0; 775 } 776 return goep_client_get_outgoing_buffer_len(goep_client); 777 }; 778 779 void goep_client_body_fillup_static(uint16_t goep_cid, const uint8_t * data, uint32_t length, uint32_t * ret_length){ 780 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 781 if (goep_client == NULL){ 782 return; 783 } 784 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 785 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 786 obex_message_builder_body_fillup_static(buffer, buffer_len, data, length, ret_length); 787 } 788 789 void goep_client_header_add_name(uint16_t goep_cid, const char * name){ 790 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 791 if (goep_client == NULL){ 792 return; 793 } 794 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 795 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 796 obex_message_builder_header_add_name(buffer, buffer_len, name); 797 } 798 799 void goep_client_header_add_name_prefix(uint16_t goep_cid, const char * name, uint16_t name_len){ 800 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 801 if (goep_client == NULL){ 802 return; 803 } 804 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 805 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 806 obex_message_builder_header_add_name_prefix(buffer, buffer_len, name, name_len); 807 } 808 809 void goep_client_header_add_type(uint16_t goep_cid, const char * type){ 810 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 811 if (goep_client == NULL){ 812 return; 813 } 814 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 815 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 816 obex_message_builder_header_add_type(buffer, buffer_len, type); 817 } 818 819 void goep_client_header_add_length(uint16_t goep_cid, uint32_t length){ 820 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 821 if (goep_client == NULL){ 822 return; 823 } 824 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 825 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 826 obex_message_builder_header_add_length(buffer, buffer_len, length); 827 } 828 829 uint16_t goep_client_request_get_max_body_size(uint16_t goep_cid){ 830 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 831 if (goep_client == NULL){ 832 return 0; 833 } 834 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 835 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 836 uint16_t pos = big_endian_read_16(buffer, 1); 837 return buffer_len - pos; 838 } 839 840 int goep_client_execute(uint16_t goep_cid){ 841 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 842 if (goep_client == NULL){ 843 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 844 } 845 return goep_client_execute_with_final_bit (goep_cid, true); 846 } 847 848 int goep_client_execute_with_final_bit(uint16_t goep_cid, bool final){ 849 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 850 if (goep_client == NULL){ 851 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 852 } 853 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 854 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 855 856 obex_message_builder_set_final_bit (buffer, buffer_len, final); 857 858 uint16_t pos = big_endian_read_16(buffer, 1); 859 if (goep_client->l2cap_psm){ 860 return l2cap_send(goep_client->bearer_cid, buffer, pos); 861 } else { 862 return rfcomm_send_prepared(goep_client->bearer_cid, pos); 863 } 864 } 865 866