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[500]; 75 76 static inline void goep_client_emit_connected_event(goep_client_t * goep_client, uint8_t status){ 77 uint8_t event[15]; 78 int pos = 0; 79 event[pos++] = HCI_EVENT_GOEP_META; 80 pos++; // skip len 81 event[pos++] = GOEP_SUBEVENT_CONNECTION_OPENED; 82 little_endian_store_16(event, pos, goep_client->cid); 83 pos+=2; 84 event[pos++] = status; 85 (void)memcpy(&event[pos], goep_client->bd_addr, 6); 86 pos += 6; 87 little_endian_store_16(event, pos, goep_client->con_handle); 88 pos += 2; 89 event[pos++] = goep_client->incoming; 90 event[1] = pos - 2; 91 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 92 goep_client->client_handler(HCI_EVENT_PACKET, goep_client->cid, &event[0], pos); 93 } 94 95 static inline void goep_client_emit_connection_closed_event(goep_client_t * goep_client){ 96 uint8_t event[5]; 97 int pos = 0; 98 event[pos++] = HCI_EVENT_GOEP_META; 99 pos++; // skip len 100 event[pos++] = GOEP_SUBEVENT_CONNECTION_CLOSED; 101 little_endian_store_16(event, pos, goep_client->cid); 102 pos+=2; 103 event[1] = pos - 2; 104 if (pos != sizeof(event)) log_error("goep_client_emit_connection_closed_event size %u", pos); 105 goep_client->client_handler(HCI_EVENT_PACKET, goep_client->cid, &event[0], pos); 106 } 107 108 static inline void goep_client_emit_can_send_now_event(goep_client_t * goep_client){ 109 uint8_t event[5]; 110 int pos = 0; 111 event[pos++] = HCI_EVENT_GOEP_META; 112 pos++; // skip len 113 event[pos++] = GOEP_SUBEVENT_CAN_SEND_NOW; 114 little_endian_store_16(event, pos, goep_client->cid); 115 pos+=2; 116 event[1] = pos - 2; 117 if (pos != sizeof(event)) log_error("goep_client_emit_can_send_now_event size %u", pos); 118 goep_client->client_handler(HCI_EVENT_PACKET, goep_client->cid, &event[0], pos); 119 } 120 121 static void goep_client_handle_connection_opened(goep_client_t * goep_client, uint8_t status, uint16_t mtu){ 122 if (status) { 123 goep_client->state = GOEP_CLIENT_INIT; 124 btstack_linked_list_remove(&goep_clients, (btstack_linked_item_t *) goep_client); 125 log_info("goep_client: open failed, status %u", status); 126 } else { 127 goep_client->bearer_mtu = mtu; 128 goep_client->state = GOEP_CLIENT_CONNECTED; 129 log_info("goep_client: connection opened. cid %u, max frame size %u", goep_client->bearer_cid, goep_client->bearer_mtu); 130 } 131 goep_client_emit_connected_event(goep_client, status); 132 } 133 134 static void goep_client_handle_connection_close(goep_client_t * goep_client){ 135 goep_client->state = GOEP_CLIENT_INIT; 136 btstack_linked_list_remove(&goep_clients, (btstack_linked_item_t *) goep_client); 137 goep_client_emit_connection_closed_event(goep_client); 138 } 139 140 static goep_client_t * goep_client_for_cid(uint16_t cid){ 141 btstack_linked_list_iterator_t it; 142 btstack_linked_list_iterator_init(&it, &goep_clients); 143 while (btstack_linked_list_iterator_has_next(&it)){ 144 goep_client_t * goep_client = (goep_client_t *) btstack_linked_list_iterator_next(&it); 145 if (goep_client->cid == cid){ 146 return goep_client; 147 } 148 } 149 return NULL; 150 } 151 152 static goep_client_t * goep_client_for_bearer_cid(uint16_t bearer_cid){ 153 btstack_linked_list_iterator_t it; 154 btstack_linked_list_iterator_init(&it, &goep_clients); 155 while (btstack_linked_list_iterator_has_next(&it)){ 156 goep_client_t * goep_client = (goep_client_t *) btstack_linked_list_iterator_next(&it); 157 if (goep_client->bearer_cid == bearer_cid){ 158 return goep_client; 159 } 160 } 161 return NULL; 162 } 163 164 static void goep_client_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 165 UNUSED(channel); 166 UNUSED(size); 167 goep_client_t * goep_client; 168 switch (packet_type){ 169 case HCI_EVENT_PACKET: 170 switch (hci_event_packet_get_type(packet)) { 171 #ifdef ENABLE_GOEP_L2CAP 172 case L2CAP_EVENT_CHANNEL_OPENED: 173 goep_client = goep_client_for_bearer_cid(l2cap_event_channel_opened_get_local_cid(packet)); 174 btstack_assert(goep_client != NULL); 175 goep_client_handle_connection_opened(goep_client, l2cap_event_channel_opened_get_status(packet), 176 btstack_min(l2cap_event_channel_opened_get_remote_mtu(packet), l2cap_event_channel_opened_get_local_mtu(packet))); 177 break; 178 case L2CAP_EVENT_CAN_SEND_NOW: 179 goep_client = goep_client_for_bearer_cid(l2cap_event_can_send_now_get_local_cid(packet)); 180 btstack_assert(goep_client != NULL); 181 goep_client_emit_can_send_now_event(goep_client); 182 break; 183 case L2CAP_EVENT_CHANNEL_CLOSED: 184 goep_client = goep_client_for_bearer_cid(l2cap_event_channel_closed_get_local_cid(packet)); 185 btstack_assert(goep_client != NULL); 186 goep_client_handle_connection_close(goep_client); 187 break; 188 #endif 189 case RFCOMM_EVENT_CHANNEL_OPENED: 190 goep_client = goep_client_for_bearer_cid(rfcomm_event_channel_opened_get_rfcomm_cid(packet)); 191 btstack_assert(goep_client != NULL); 192 goep_client_handle_connection_opened(goep_client, rfcomm_event_channel_opened_get_status(packet), rfcomm_event_channel_opened_get_max_frame_size(packet)); 193 return; 194 case RFCOMM_EVENT_CAN_SEND_NOW: 195 goep_client = goep_client_for_bearer_cid(rfcomm_event_can_send_now_get_rfcomm_cid(packet)); 196 btstack_assert(goep_client != NULL); 197 goep_client_emit_can_send_now_event(goep_client); 198 break; 199 case RFCOMM_EVENT_CHANNEL_CLOSED: 200 goep_client = goep_client_for_bearer_cid(rfcomm_event_channel_closed_get_rfcomm_cid(packet)); 201 btstack_assert(goep_client != NULL); 202 goep_client_handle_connection_close(goep_client); 203 break; 204 default: 205 break; 206 } 207 break; 208 case L2CAP_DATA_PACKET: 209 case RFCOMM_DATA_PACKET: 210 goep_client = goep_client_for_bearer_cid(channel); 211 btstack_assert(goep_client != NULL); 212 goep_client->client_handler(GOEP_DATA_PACKET, goep_client->cid, packet, size); 213 break; 214 default: 215 break; 216 } 217 } 218 219 static void goep_client_handle_sdp_query_end_of_record(goep_client_t * goep_client){ 220 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER){ 221 // use matching SDP record with highest MAP version as there might be additional records for backwards compatibility 222 if (goep_client->mas_info.instance_id == goep_client->map_mas_instance_id){ 223 if (goep_client->mas_info.version > goep_client->map_version){ 224 // Requested MAS Instance found, accept info 225 goep_client->rfcomm_port = goep_client->mas_info.rfcomm_port; 226 goep_client->profile_supported_features = goep_client->mas_info.supported_features; 227 goep_client->map_supported_message_types = goep_client->mas_info.supported_message_types; 228 #ifdef ENABLE_GOEP_L2CAP 229 goep_client->l2cap_psm = goep_client->mas_info.l2cap_psm; 230 goep_client->map_version = goep_client->mas_info.version; 231 log_info("MAS Instance #%u found, version %u.%u: rfcomm #%u, l2cap 0x%04x ", goep_client->map_mas_instance_id, 232 goep_client->map_version, goep_client->map_version, goep_client->rfcomm_port, goep_client->l2cap_psm); 233 #else 234 log_info("MAS Instance #%u found, rfcomm #%u", goep_client->map_mas_instance_id, 235 goep_client->rfcomm_port); 236 #endif 237 } 238 } 239 } 240 } 241 static uint8_t goep_client_start_connect(goep_client_t * goep_client){ 242 #ifdef ENABLE_GOEP_L2CAP 243 if (goep_client->l2cap_psm && (goep_client->ertm_buffer != NULL)){ 244 log_info("Remote GOEP L2CAP PSM: 0x%x", goep_client->l2cap_psm); 245 return l2cap_ertm_create_channel(&goep_client_packet_handler, goep_client->bd_addr, goep_client->l2cap_psm, 246 &goep_client->ertm_config, goep_client->ertm_buffer, 247 goep_client->ertm_buffer_size, &goep_client->bearer_cid); 248 } 249 #endif 250 log_info("Remote GOEP RFCOMM Server Channel: %u", goep_client->rfcomm_port); 251 return rfcomm_create_channel(&goep_client_packet_handler, goep_client->bd_addr, goep_client->rfcomm_port, &goep_client->bearer_cid); 252 } 253 254 static void goep_client_handle_sdp_query_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 255 goep_client_t * goep_client = goep_client_sdp_active; 256 btstack_assert(goep_client != NULL); 257 258 UNUSED(packet_type); 259 UNUSED(channel); 260 UNUSED(size); 261 262 des_iterator_t des_list_it; 263 des_iterator_t prot_it; 264 uint8_t status; 265 uint16_t record_index; 266 bool goep_server_found; 267 268 switch (hci_event_packet_get_type(packet)){ 269 case SDP_EVENT_QUERY_ATTRIBUTE_VALUE: 270 271 // detect new record 272 record_index = sdp_event_query_attribute_byte_get_record_id(packet); 273 if (record_index != goep_client->record_index){ 274 goep_client->record_index = record_index; 275 goep_client_handle_sdp_query_end_of_record(goep_client); 276 memset(&goep_client->mas_info, 0, sizeof(goep_client->mas_info)); 277 } 278 279 // check if relevant attribute 280 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)){ 281 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 282 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 283 case BLUETOOTH_ATTRIBUTE_MAS_INSTANCE_ID: 284 case BLUETOOTH_ATTRIBUTE_SUPPORTED_MESSAGE_TYPES: 285 case BLUETOOTH_ATTRIBUTE_BLUETOOTH_PROFILE_DESCRIPTOR_LIST: 286 #ifdef ENABLE_GOEP_L2CAP 287 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 288 #endif 289 break; 290 default: 291 return; 292 } 293 294 // warn if attribute too large to fit in our buffer 295 if (sdp_event_query_attribute_byte_get_attribute_length(packet) > goep_client_sdp_query_attribute_value_buffer_size) { 296 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)); 297 break; 298 } 299 300 // store single byte 301 goep_client_sdp_query_attribute_value[sdp_event_query_attribute_byte_get_data_offset(packet)] = sdp_event_query_attribute_byte_get_data(packet); 302 303 // wait until value fully received 304 if ((uint16_t)(sdp_event_query_attribute_byte_get_data_offset(packet)+1) != sdp_event_query_attribute_byte_get_attribute_length(packet)) break; 305 306 // process attributes 307 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)) { 308 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 309 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)) { 310 uint8_t *des_element; 311 uint8_t *element; 312 uint32_t uuid; 313 314 if (des_iterator_get_type(&des_list_it) != DE_DES) continue; 315 316 des_element = des_iterator_get_element(&des_list_it); 317 des_iterator_init(&prot_it, des_element); 318 319 // first element is UUID 320 element = des_iterator_get_element(&prot_it); 321 if (de_get_element_type(element) != DE_UUID) continue; 322 323 uuid = de_get_uuid32(element); 324 des_iterator_next(&prot_it); 325 if (!des_iterator_has_more(&prot_it)) continue; 326 327 // second element is RFCOMM server channel or L2CAP PSM 328 element = des_iterator_get_element(&prot_it); 329 if (uuid == BLUETOOTH_PROTOCOL_RFCOMM){ 330 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER) { 331 goep_client->mas_info.rfcomm_port = element[de_get_header_size(element)]; 332 } else { 333 goep_client->rfcomm_port = element[de_get_header_size(element)]; 334 } 335 } 336 } 337 break; 338 339 case BLUETOOTH_ATTRIBUTE_BLUETOOTH_PROFILE_DESCRIPTOR_LIST: 340 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)) { 341 uint8_t *des_element; 342 uint8_t *element; 343 uint32_t uuid; 344 345 if (des_iterator_get_type(&des_list_it) != DE_DES) continue; 346 347 des_element = des_iterator_get_element(&des_list_it); 348 des_iterator_init(&prot_it, des_element); 349 element = des_iterator_get_element(&prot_it); 350 351 if (de_get_element_type(element) != DE_UUID) continue; 352 353 uuid = de_get_uuid32(element); 354 des_iterator_next(&prot_it); 355 switch (uuid){ 356 case BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_PROFILE: 357 if (!des_iterator_has_more(&prot_it)) continue; 358 de_element_get_uint16(des_iterator_get_element(&prot_it), &goep_client->mas_info.version); 359 break; 360 default: 361 break; 362 } 363 } 364 break; 365 366 #ifdef ENABLE_GOEP_L2CAP 367 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 368 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER){ 369 de_element_get_uint16(goep_client_sdp_query_attribute_value, &goep_client->mas_info.l2cap_psm); 370 } else { 371 de_element_get_uint16(goep_client_sdp_query_attribute_value, &goep_client->l2cap_psm); 372 } 373 break; 374 #endif 375 376 // BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES == BLUETOOTH_ATTRIBUTE_MAP_SUPPORTED_FEATURES == 0x0317 377 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 378 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 379 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_32) break; 380 if (goep_client->uuid == BLUETOOTH_SERVICE_CLASS_MESSAGE_ACCESS_SERVER) { 381 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)); 382 } else { 383 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)); 384 } 385 break; 386 387 case BLUETOOTH_ATTRIBUTE_MAS_INSTANCE_ID: 388 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 389 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_8) break; 390 goep_client->mas_info.instance_id = goep_client_sdp_query_attribute_value[de_get_header_size(goep_client_sdp_query_attribute_value)]; 391 break; 392 393 case BLUETOOTH_ATTRIBUTE_SUPPORTED_MESSAGE_TYPES: 394 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 395 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_8) break; 396 goep_client->mas_info.supported_message_types = goep_client_sdp_query_attribute_value[de_get_header_size(goep_client_sdp_query_attribute_value)]; 397 break; 398 399 default: 400 break; 401 } 402 break; 403 404 case SDP_EVENT_QUERY_COMPLETE: 405 goep_client_sdp_active = NULL; 406 goep_client_handle_sdp_query_end_of_record(goep_client); 407 status = sdp_event_query_complete_get_status(packet); 408 if (status != ERROR_CODE_SUCCESS){ 409 log_info("GOEP client, SDP query failed 0x%02x", status); 410 goep_client_handle_connection_opened(goep_client, status, 0); 411 break; 412 } 413 goep_server_found = false; 414 if (goep_client->rfcomm_port != 0){ 415 goep_server_found = true; 416 } 417 #ifdef ENABLE_GOEP_L2CAP 418 if (goep_client->l2cap_psm != 0){ 419 goep_server_found = true; 420 } 421 #endif 422 if (goep_server_found == false){ 423 log_info("No GOEP RFCOMM or L2CAP server found"); 424 goep_client_handle_connection_opened(goep_client, SDP_SERVICE_NOT_FOUND, 0); 425 break; 426 } 427 (void) goep_client_start_connect(goep_client); 428 break; 429 430 default: 431 break; 432 } 433 } 434 435 static uint8_t * goep_client_get_outgoing_buffer(goep_client_t * goep_client){ 436 if (goep_client->l2cap_psm){ 437 return goep_packet_buffer; 438 } else { 439 return rfcomm_get_outgoing_buffer(); 440 } 441 } 442 443 static uint16_t goep_client_get_outgoing_buffer_len(goep_client_t * goep_client){ 444 if (goep_client->l2cap_psm){ 445 return btstack_min((uint32_t)sizeof(goep_packet_buffer), goep_client->bearer_mtu); 446 } else { 447 return rfcomm_get_max_frame_size(goep_client->bearer_cid); 448 } 449 } 450 451 static void goep_client_packet_init(goep_client_t *goep_client, uint8_t opcode) { 452 if (goep_client->l2cap_psm != 0){ 453 } else { 454 rfcomm_reserve_packet_buffer(); 455 } 456 // store opcode for parsing of response 457 goep_client->obex_opcode = opcode; 458 } 459 460 void goep_client_init(void){ 461 } 462 463 void goep_client_deinit(void){ 464 goep_clients = NULL; 465 goep_client_cid = 0; 466 memset(goep_client_sdp_query_attribute_value, 0, sizeof(goep_client_sdp_query_attribute_value)); 467 memset(goep_packet_buffer, 0, sizeof(goep_packet_buffer)); 468 } 469 470 static void geop_client_sdp_query_start(void * context){ 471 uint16_t goep_cid = (uint16_t)(uintptr_t) context; 472 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 473 if (context != NULL){ 474 goep_client_sdp_active = goep_client; 475 sdp_client_query_uuid16(&goep_client_handle_sdp_query_event, goep_client->bd_addr, 476 goep_client->uuid); 477 } 478 } 479 480 uint8_t 481 goep_client_connect(goep_client_t *goep_client, l2cap_ertm_config_t *l2cap_ertm_config, uint8_t *l2cap_ertm_buffer, 482 uint16_t l2cap_ertm_buffer_size, btstack_packet_handler_t handler, bd_addr_t addr, uint16_t uuid, 483 uint8_t instance_id, uint16_t *out_cid) { 484 btstack_assert(goep_client != NULL); 485 486 // get new goep cid, skip 0x0000 487 goep_client_cid++; 488 if (goep_client_cid == 0) { 489 goep_client_cid = 1; 490 } 491 492 // add to list 493 memset(goep_client, 0, sizeof(goep_client_t)); 494 goep_client->state = GOEP_CLIENT_W4_SDP; 495 goep_client->cid = goep_client_cid; 496 goep_client->client_handler = handler; 497 goep_client->uuid = uuid; 498 goep_client->map_mas_instance_id = instance_id; 499 goep_client->profile_supported_features = PROFILE_FEATURES_NOT_PRESENT; 500 (void)memcpy(goep_client->bd_addr, addr, 6); 501 goep_client->sdp_query_request.callback = geop_client_sdp_query_start; 502 goep_client->sdp_query_request.context = (void *)(uintptr_t) goep_client->cid; 503 goep_client->obex_connection_id = OBEX_CONNECTION_ID_INVALID; 504 #ifdef ENABLE_GOEP_L2CAP 505 if (l2cap_ertm_config != NULL){ 506 memcpy(&goep_client->ertm_config, l2cap_ertm_config, sizeof(l2cap_ertm_config_t)); 507 } 508 goep_client->ertm_buffer_size = l2cap_ertm_buffer_size; 509 goep_client->ertm_buffer = l2cap_ertm_buffer; 510 #else 511 UNUSED(l2cap_ertm_buffer); 512 UNUSED(l2cap_ertm_config); 513 UNUSED(l2cap_ertm_buffer_size); 514 #endif 515 btstack_linked_list_add(&goep_clients, (btstack_linked_item_t *) goep_client); 516 517 // request sdp query 518 sdp_client_register_query_callback(&goep_client->sdp_query_request); 519 520 *out_cid = goep_client->cid; 521 return ERROR_CODE_SUCCESS; 522 } 523 524 #ifdef ENABLE_GOEP_L2CAP 525 uint8_t goep_client_connect_l2cap(goep_client_t *goep_client, l2cap_ertm_config_t *l2cap_ertm_config, uint8_t *l2cap_ertm_buffer, 526 uint16_t l2cap_ertm_buffer_size, btstack_packet_handler_t handler, bd_addr_t addr, uint16_t l2cap_psm, 527 uint16_t *out_cid){ 528 btstack_assert(goep_client != NULL); 529 btstack_assert(l2cap_ertm_config != NULL); 530 btstack_assert(l2cap_ertm_buffer != NULL); 531 532 // get new goep cid, skip 0x0000 533 goep_client_cid++; 534 if (goep_client_cid == 0) { 535 goep_client_cid = 1; 536 } 537 538 // add to list 539 memset(goep_client, 0, sizeof(goep_client_t)); 540 goep_client->state = GOEP_CLIENT_W4_SDP; 541 goep_client->cid = goep_client_cid; 542 goep_client->client_handler = handler; 543 goep_client->profile_supported_features = PROFILE_FEATURES_NOT_PRESENT; 544 (void)memcpy(goep_client->bd_addr, addr, 6); 545 goep_client->obex_connection_id = OBEX_CONNECTION_ID_INVALID; 546 memcpy(&goep_client->ertm_config, l2cap_ertm_config, sizeof(l2cap_ertm_config_t)); 547 goep_client->ertm_buffer_size = l2cap_ertm_buffer_size; 548 goep_client->ertm_buffer = l2cap_ertm_buffer; 549 btstack_linked_list_add_tail(&goep_clients, (btstack_linked_item_t *) goep_client); 550 551 goep_client->l2cap_psm = l2cap_psm; 552 553 *out_cid = goep_client->cid; 554 555 return goep_client_start_connect(goep_client); 556 } 557 #endif 558 559 uint32_t goep_client_get_pbap_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 PBAP_FEATURES_NOT_PRESENT; 563 } 564 return goep_client->profile_supported_features; 565 } 566 567 uint32_t goep_client_get_map_supported_features(uint16_t goep_cid){ 568 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 569 if (goep_client == NULL){ 570 return PROFILE_FEATURES_NOT_PRESENT; 571 } 572 return goep_client->profile_supported_features; 573 } 574 575 uint8_t goep_client_get_map_mas_instance_id(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_mas_instance_id; 581 } 582 583 uint8_t goep_client_get_map_supported_message_types(uint16_t goep_cid){ 584 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 585 if (goep_client == NULL){ 586 return 0; 587 } 588 return goep_client->map_supported_message_types; 589 } 590 591 592 bool goep_client_version_20_or_higher(uint16_t goep_cid){ 593 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 594 if (goep_client == NULL){ 595 return false; 596 } 597 return goep_client->l2cap_psm != 0; 598 } 599 600 void goep_client_request_can_send_now(uint16_t goep_cid){ 601 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 602 if (goep_client == NULL){ 603 return; 604 } 605 if (goep_client->l2cap_psm){ 606 l2cap_request_can_send_now_event(goep_client->bearer_cid); 607 } else { 608 rfcomm_request_can_send_now_event(goep_client->bearer_cid); 609 } 610 } 611 612 uint8_t goep_client_disconnect(uint16_t goep_cid){ 613 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 614 if (goep_client == NULL){ 615 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 616 } 617 if (goep_client->l2cap_psm){ 618 l2cap_disconnect(goep_client->bearer_cid); 619 } else { 620 rfcomm_disconnect(goep_client->bearer_cid); 621 } 622 return ERROR_CODE_SUCCESS; 623 } 624 625 void goep_client_set_connection_id(uint16_t goep_cid, uint32_t connection_id){ 626 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 627 if (goep_client == NULL){ 628 return; 629 } 630 goep_client->obex_connection_id = connection_id; 631 } 632 633 uint8_t goep_client_get_request_opcode(uint16_t goep_cid){ 634 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 635 if (goep_client == NULL){ 636 return 0; 637 } 638 return goep_client->obex_opcode; 639 } 640 641 void goep_client_request_create_connect(uint16_t goep_cid, uint8_t obex_version_number, uint8_t flags, uint16_t maximum_obex_packet_length){ 642 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 643 if (goep_client == NULL){ 644 return; 645 } 646 goep_client_packet_init(goep_client, OBEX_OPCODE_CONNECT); 647 // workaround: limit OBEX packet len to L2CAP/RFCOMM MTU to avoid handling of fragemented packets 648 maximum_obex_packet_length = btstack_min(maximum_obex_packet_length, goep_client->bearer_mtu); 649 650 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 651 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 652 obex_message_builder_request_create_connect(buffer, buffer_len, obex_version_number, flags, maximum_obex_packet_length); 653 } 654 655 void goep_client_request_create_get(uint16_t goep_cid){ 656 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 657 if (goep_client == NULL){ 658 return; 659 } 660 goep_client_packet_init(goep_client, OBEX_OPCODE_GET | OBEX_OPCODE_FINAL_BIT_MASK); 661 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 662 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 663 obex_message_builder_request_create_get(buffer, buffer_len, goep_client->obex_connection_id); 664 } 665 666 void goep_client_request_create_put(uint16_t goep_cid){ 667 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 668 if (goep_client == NULL){ 669 return; 670 } 671 goep_client_packet_init(goep_client, OBEX_OPCODE_PUT | OBEX_OPCODE_FINAL_BIT_MASK); 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_request_create_put(buffer, buffer_len, goep_client->obex_connection_id); 675 } 676 677 void goep_client_request_create_set_path(uint16_t goep_cid, uint8_t flags){ 678 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 679 if (goep_client == NULL){ 680 return; 681 } 682 goep_client_packet_init(goep_client, OBEX_OPCODE_SETPATH); 683 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 684 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 685 obex_message_builder_request_create_set_path(buffer, buffer_len, flags, goep_client->obex_connection_id); 686 } 687 688 void goep_client_request_create_abort(uint16_t goep_cid){ 689 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 690 if (goep_client == NULL){ 691 return; 692 } 693 goep_client_packet_init(goep_client, OBEX_OPCODE_ABORT); 694 695 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 696 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 697 obex_message_builder_request_create_abort(buffer, buffer_len, goep_client->obex_connection_id); 698 } 699 700 void goep_client_request_create_disconnect(uint16_t goep_cid){ 701 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 702 if (goep_client == NULL){ 703 return; 704 } 705 goep_client_packet_init(goep_client, OBEX_OPCODE_DISCONNECT); 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_request_create_disconnect(buffer, buffer_len, goep_client->obex_connection_id); 709 } 710 711 void goep_client_header_add_byte(uint16_t goep_cid, uint8_t header_type, uint8_t value){ 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_byte(buffer, buffer_len, header_type, value); 719 } 720 721 void goep_client_header_add_word(uint16_t goep_cid, uint8_t header_type, uint32_t value){ 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_word(buffer, buffer_len, header_type, value); 729 } 730 731 void goep_client_header_add_variable(uint16_t goep_cid, uint8_t header_type, const uint8_t * header_data, uint16_t header_data_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_variable(buffer, buffer_len, header_type, header_data, header_data_length); 739 } 740 741 void goep_client_header_add_srm_enable(uint16_t goep_cid){ 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_srm_enable(buffer, buffer_len); 749 } 750 751 void goep_client_header_add_srmp_waiting(uint16_t goep_cid){ 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_srmp_wait(buffer, buffer_len); 759 } 760 761 void goep_client_header_add_target(uint16_t goep_cid, const uint8_t * target, uint16_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_header_add_target(buffer, buffer_len, target, length); 769 } 770 771 void goep_client_header_add_application_parameters(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 772 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 773 if (goep_client == NULL){ 774 return; 775 } 776 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 777 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 778 obex_message_builder_header_add_application_parameters(buffer, buffer_len, data, length); 779 } 780 781 void goep_client_header_add_challenge_response(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 782 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 783 if (goep_client == NULL){ 784 return; 785 } 786 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 787 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 788 obex_message_builder_header_add_challenge_response(buffer, buffer_len, data, length); 789 } 790 791 void goep_client_body_add_static(uint16_t goep_cid, const uint8_t * data, uint32_t 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_add_static(buffer, buffer_len, data, length); 799 } 800 801 uint16_t goep_client_body_get_outgoing_buffer_len(uint16_t goep_cid) { 802 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 803 if (goep_client == NULL){ 804 return 0; 805 } 806 return goep_client_get_outgoing_buffer_len(goep_client); 807 } 808 809 void goep_client_body_fillup_static(uint16_t goep_cid, const uint8_t * data, uint32_t length, uint32_t * ret_length){ 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_body_fillup_static(buffer, buffer_len, data, length, ret_length); 817 } 818 819 void goep_client_header_add_name(uint16_t goep_cid, const char * name){ 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_name(buffer, buffer_len, name); 827 } 828 829 void goep_client_header_add_name_prefix(uint16_t goep_cid, const char * name, uint16_t name_len){ 830 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 831 if (goep_client == NULL){ 832 return; 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 obex_message_builder_header_add_name_prefix(buffer, buffer_len, name, name_len); 837 } 838 839 void goep_client_header_add_unicode_prefix(uint16_t goep_cid, uint8_t header_id, const char * name, uint16_t name_len){ 840 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 841 if (goep_client == NULL){ 842 return; 843 } 844 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 845 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 846 obex_message_builder_header_add_unicode_prefix(buffer, buffer_len, header_id, name, name_len); 847 } 848 849 void goep_client_header_add_type(uint16_t goep_cid, const char * type){ 850 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 851 if (goep_client == NULL){ 852 return; 853 } 854 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 855 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 856 obex_message_builder_header_add_type(buffer, buffer_len, type); 857 } 858 859 void goep_client_header_add_length(uint16_t goep_cid, uint32_t length){ 860 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 861 if (goep_client == NULL){ 862 return; 863 } 864 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 865 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 866 obex_message_builder_header_add_length(buffer, buffer_len, length); 867 } 868 869 uint16_t goep_client_request_get_max_body_size(uint16_t goep_cid){ 870 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 871 if (goep_client == NULL){ 872 return 0; 873 } 874 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 875 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 876 uint16_t pos = big_endian_read_16(buffer, 1); 877 return buffer_len - pos; 878 } 879 880 int goep_client_execute(uint16_t goep_cid){ 881 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 882 if (goep_client == NULL){ 883 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 884 } 885 return goep_client_execute_with_final_bit (goep_cid, true); 886 } 887 888 int goep_client_execute_with_final_bit(uint16_t goep_cid, bool final){ 889 goep_client_t * goep_client = goep_client_for_cid(goep_cid); 890 if (goep_client == NULL){ 891 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 892 } 893 uint8_t * buffer = goep_client_get_outgoing_buffer(goep_client); 894 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(goep_client); 895 896 obex_message_builder_set_final_bit (buffer, buffer_len, final); 897 898 uint16_t pos = big_endian_read_16(buffer, 1); 899 if (goep_client->l2cap_psm){ 900 return l2cap_send(goep_client->bearer_cid, buffer, pos); 901 } else { 902 return rfcomm_send_prepared(goep_client->bearer_cid, pos); 903 } 904 } 905 906