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 // #define ENABLE_GOEP_L2CAP 63 64 #ifdef ENABLE_GOEP_L2CAP 65 #ifndef ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE 66 #error "ENABLE_GOEP_L2CAP requires ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE. Please enable ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE or disable ENABLE_GOEP_L2CAP" 67 #endif 68 #endif 69 70 typedef enum { 71 GOEP_INIT, 72 GOEP_W4_SDP, 73 GOEP_W4_CONNECTION, 74 GOEP_CONNECTED, 75 } goep_state_t; 76 77 typedef struct { 78 uint16_t cid; 79 goep_state_t state; 80 bd_addr_t bd_addr; 81 hci_con_handle_t con_handle; 82 uint8_t incoming; 83 uint8_t rfcomm_port; 84 uint16_t l2cap_psm; 85 uint16_t bearer_cid; 86 uint16_t bearer_mtu; 87 uint32_t pbap_supported_features; 88 89 uint8_t obex_opcode; 90 uint32_t obex_connection_id; 91 int obex_connection_id_set; 92 93 btstack_packet_handler_t client_handler; 94 } goep_client_t; 95 96 static goep_client_t goep_client_singleton; 97 static goep_client_t * goep_client = &goep_client_singleton; 98 99 static uint8_t goep_client_sdp_query_attribute_value[30]; 100 static const unsigned int goep_client_sdp_query_attribute_value_buffer_size = sizeof(goep_client_sdp_query_attribute_value); 101 102 static uint8_t goep_packet_buffer[150]; 103 104 #ifdef ENABLE_GOEP_L2CAP 105 static uint8_t ertm_buffer[1000]; 106 static l2cap_ertm_config_t ertm_config = { 107 1, // ertm mandatory 108 2, // max transmit, some tests require > 1 109 2000, 110 12000, 111 512, // l2cap ertm mtu 112 2, 113 2, 114 1, // 16-bit FCS 115 }; 116 #endif 117 118 static inline void goep_client_emit_connected_event(goep_client_t * context, uint8_t status){ 119 uint8_t event[15]; 120 int pos = 0; 121 event[pos++] = HCI_EVENT_GOEP_META; 122 pos++; // skip len 123 event[pos++] = GOEP_SUBEVENT_CONNECTION_OPENED; 124 little_endian_store_16(event,pos,context->cid); 125 pos+=2; 126 event[pos++] = status; 127 (void)memcpy(&event[pos], context->bd_addr, 6); 128 pos += 6; 129 little_endian_store_16(event,pos,context->con_handle); 130 pos += 2; 131 event[pos++] = context->incoming; 132 event[1] = pos - 2; 133 if (pos != sizeof(event)) log_error("goep_client_emit_connected_event size %u", pos); 134 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 135 } 136 137 static inline void goep_client_emit_connection_closed_event(goep_client_t * context){ 138 uint8_t event[5]; 139 int pos = 0; 140 event[pos++] = HCI_EVENT_GOEP_META; 141 pos++; // skip len 142 event[pos++] = GOEP_SUBEVENT_CONNECTION_CLOSED; 143 little_endian_store_16(event,pos,context->cid); 144 pos+=2; 145 event[1] = pos - 2; 146 if (pos != sizeof(event)) log_error("goep_client_emit_connection_closed_event size %u", pos); 147 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 148 } 149 150 static inline void goep_client_emit_can_send_now_event(goep_client_t * context){ 151 uint8_t event[5]; 152 int pos = 0; 153 event[pos++] = HCI_EVENT_GOEP_META; 154 pos++; // skip len 155 event[pos++] = GOEP_SUBEVENT_CAN_SEND_NOW; 156 little_endian_store_16(event,pos,context->cid); 157 pos+=2; 158 event[1] = pos - 2; 159 if (pos != sizeof(event)) log_error("goep_client_emit_can_send_now_event size %u", pos); 160 context->client_handler(HCI_EVENT_PACKET, context->cid, &event[0], pos); 161 } 162 163 static void goep_client_handle_connection_opened(goep_client_t * context, uint8_t status, uint16_t mtu){ 164 if (status) { 165 context->state = GOEP_INIT; 166 log_info("goep_client: open failed, status %u", status); 167 } else { 168 context->bearer_mtu = mtu; 169 context->state = GOEP_CONNECTED; 170 log_info("goep_client: connection opened. cid %u, max frame size %u", context->bearer_cid, context->bearer_mtu); 171 } 172 goep_client_emit_connected_event(context, status); 173 } 174 175 static void goep_client_handle_connection_close(goep_client_t * context){ 176 context->state = GOEP_INIT; 177 goep_client_emit_connection_closed_event(context); 178 } 179 180 static void goep_client_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 181 UNUSED(channel); 182 UNUSED(size); 183 goep_client_t * context = goep_client; 184 switch (packet_type){ 185 case HCI_EVENT_PACKET: 186 switch (hci_event_packet_get_type(packet)) { 187 #ifdef ENABLE_GOEP_L2CAP 188 case L2CAP_EVENT_CHANNEL_OPENED: 189 goep_client_handle_connection_opened(context, l2cap_event_channel_opened_get_status(packet), 190 btstack_min(l2cap_event_channel_opened_get_remote_mtu(packet), l2cap_event_channel_opened_get_local_mtu(packet))); 191 return; 192 case L2CAP_EVENT_CAN_SEND_NOW: 193 goep_client_emit_can_send_now_event(context); 194 break; 195 case L2CAP_EVENT_CHANNEL_CLOSED: 196 goep_client_handle_connection_close(context); 197 break; 198 #endif 199 case RFCOMM_EVENT_CHANNEL_OPENED: 200 goep_client_handle_connection_opened(context, rfcomm_event_channel_opened_get_status(packet), rfcomm_event_channel_opened_get_max_frame_size(packet)); 201 return; 202 case RFCOMM_EVENT_CAN_SEND_NOW: 203 goep_client_emit_can_send_now_event(context); 204 break; 205 case RFCOMM_EVENT_CHANNEL_CLOSED: 206 goep_client_handle_connection_close(context); 207 break; 208 default: 209 break; 210 } 211 break; 212 case L2CAP_DATA_PACKET: 213 case RFCOMM_DATA_PACKET: 214 context->client_handler(GOEP_DATA_PACKET, context->cid, packet, size); 215 break; 216 default: 217 break; 218 } 219 } 220 221 static void goep_client_handle_sdp_query_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 222 goep_client_t * context = goep_client; 223 224 UNUSED(packet_type); 225 UNUSED(channel); 226 UNUSED(size); 227 228 des_iterator_t des_list_it; 229 des_iterator_t prot_it; 230 uint8_t status; 231 232 233 switch (hci_event_packet_get_type(packet)){ 234 case SDP_EVENT_QUERY_ATTRIBUTE_VALUE: 235 236 // check if relevant attribute 237 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)){ 238 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 239 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 240 #ifdef ENABLE_GOEP_L2CAP 241 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 242 #endif 243 break; 244 default: 245 return; 246 } 247 248 // warn if attribute too large to fit in our buffer 249 if (sdp_event_query_attribute_byte_get_attribute_length(packet) > goep_client_sdp_query_attribute_value_buffer_size) { 250 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)); 251 break; 252 } 253 254 // store single byte 255 goep_client_sdp_query_attribute_value[sdp_event_query_attribute_byte_get_data_offset(packet)] = sdp_event_query_attribute_byte_get_data(packet); 256 257 // wait until value fully received 258 if ((uint16_t)(sdp_event_query_attribute_byte_get_data_offset(packet)+1) != sdp_event_query_attribute_byte_get_attribute_length(packet)) break; 259 260 // process attributes 261 switch(sdp_event_query_attribute_byte_get_attribute_id(packet)) { 262 case BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST: 263 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)) { 264 uint8_t *des_element; 265 uint8_t *element; 266 uint32_t uuid; 267 #ifdef ENABLE_GOEP_L2CAP 268 uint16_t l2cap_psm; 269 #endif 270 271 if (des_iterator_get_type(&des_list_it) != DE_DES) continue; 272 273 des_element = des_iterator_get_element(&des_list_it); 274 des_iterator_init(&prot_it, des_element); 275 276 // first element is UUID 277 element = des_iterator_get_element(&prot_it); 278 if (de_get_element_type(element) != DE_UUID) continue; 279 280 uuid = de_get_uuid32(element); 281 des_iterator_next(&prot_it); 282 if (!des_iterator_has_more(&prot_it)) continue; 283 284 // second element is RFCOMM server channel or L2CAP PSM 285 element = des_iterator_get_element(&prot_it); 286 switch (uuid){ 287 #ifdef ENABLE_GOEP_L2CAP 288 case BLUETOOTH_PROTOCOL_L2CAP: 289 if (de_element_get_uint16(element, &l2cap_psm)){ 290 context->l2cap_psm = l2cap_psm; 291 } 292 break; 293 #endif 294 case BLUETOOTH_PROTOCOL_RFCOMM: 295 context->rfcomm_port = element[de_get_header_size(element)]; 296 break; 297 default: 298 break; 299 } 300 } 301 break; 302 #ifdef ENABLE_GOEP_L2CAP 303 case BLUETOOTH_ATTRIBUTE_GOEP_L2CAP_PSM: 304 de_element_get_uint16(goep_client_sdp_query_attribute_value, &context->l2cap_psm); 305 break; 306 #endif 307 case BLUETOOTH_ATTRIBUTE_PBAP_SUPPORTED_FEATURES: 308 if (de_get_element_type(goep_client_sdp_query_attribute_value) != DE_UINT) break; 309 if (de_get_size_type(goep_client_sdp_query_attribute_value) != DE_SIZE_32) break; 310 context->pbap_supported_features = big_endian_read_32(goep_client_sdp_query_attribute_value, de_get_header_size(goep_client_sdp_query_attribute_value)); 311 log_info("pbap_supported_features 0x%x", (unsigned int) context->pbap_supported_features); 312 break; 313 default: 314 break; 315 } 316 break; 317 318 case SDP_EVENT_QUERY_COMPLETE: 319 status = sdp_event_query_complete_get_status(packet); 320 if (status != ERROR_CODE_SUCCESS){ 321 log_info("GOEP client, SDP query failed 0x%02x", status); 322 context->state = GOEP_INIT; 323 goep_client_emit_connected_event(goep_client, status); 324 break; 325 } 326 if ((context->rfcomm_port == 0) && (context->l2cap_psm == 0)){ 327 log_info("No GOEP RFCOMM or L2CAP server found"); 328 context->state = GOEP_INIT; 329 goep_client_emit_connected_event(goep_client, SDP_SERVICE_NOT_FOUND); 330 break; 331 } 332 #ifdef ENABLE_GOEP_L2CAP 333 if (context->l2cap_psm){ 334 log_info("Remote GOEP L2CAP PSM: %u", context->l2cap_psm); 335 l2cap_ertm_create_channel(&goep_client_packet_handler, context->bd_addr, context->l2cap_psm, 336 &ertm_config, ertm_buffer, sizeof(ertm_buffer), &context->bearer_cid); 337 return; 338 } 339 #endif 340 log_info("Remote GOEP RFCOMM Server Channel: %u", context->rfcomm_port); 341 rfcomm_create_channel(&goep_client_packet_handler, context->bd_addr, context->rfcomm_port, &context->bearer_cid); 342 break; 343 344 default: 345 break; 346 } 347 } 348 349 static uint8_t * goep_client_get_outgoing_buffer(goep_client_t * context){ 350 if (context->l2cap_psm){ 351 return goep_packet_buffer; 352 } else { 353 return rfcomm_get_outgoing_buffer(); 354 } 355 } 356 357 static uint16_t goep_client_get_outgoing_buffer_len(goep_client_t * context){ 358 if (context->l2cap_psm){ 359 return sizeof(goep_packet_buffer); 360 } else { 361 return rfcomm_get_max_frame_size(context->bearer_cid); 362 } 363 } 364 365 static void goep_client_packet_init(uint16_t goep_cid, uint8_t opcode){ 366 UNUSED(goep_cid); 367 goep_client_t * context = goep_client; 368 if (context->l2cap_psm){ 369 } else { 370 rfcomm_reserve_packet_buffer(); 371 } 372 // store opcode for parsing of response 373 context->obex_opcode = opcode; 374 } 375 376 void goep_client_init(void){ 377 memset(goep_client, 0, sizeof(goep_client_t)); 378 goep_client->state = GOEP_INIT; 379 goep_client->cid = 1; 380 goep_client->obex_connection_id = OBEX_CONNECTION_ID_INVALID; 381 } 382 383 void goep_client_deinit(void){ 384 memset(goep_client, 0, sizeof(goep_client_t)); 385 memset(goep_client_sdp_query_attribute_value, 0, sizeof(goep_client_sdp_query_attribute_value)); 386 memset(goep_packet_buffer, 0, sizeof(goep_packet_buffer)); 387 } 388 389 uint8_t goep_client_create_connection(btstack_packet_handler_t handler, bd_addr_t addr, uint16_t uuid, uint16_t * out_cid){ 390 goep_client_t * context = goep_client; 391 if (context->state != GOEP_INIT) return BTSTACK_MEMORY_ALLOC_FAILED; 392 context->client_handler = handler; 393 context->state = GOEP_W4_SDP; 394 context->l2cap_psm = 0; 395 context->rfcomm_port = 0; 396 context->pbap_supported_features = PBAP_FEATURES_NOT_PRESENT; 397 (void)memcpy(context->bd_addr, addr, 6); 398 sdp_client_query_uuid16(&goep_client_handle_sdp_query_event, context->bd_addr, uuid); 399 *out_cid = context->cid; 400 return ERROR_CODE_SUCCESS; 401 } 402 403 uint32_t goep_client_get_pbap_supported_features(uint16_t goep_cid){ 404 UNUSED(goep_cid); 405 goep_client_t * context = goep_client; 406 return context->pbap_supported_features; 407 } 408 409 bool goep_client_version_20_or_higher(uint16_t goep_cid){ 410 UNUSED(goep_cid); 411 goep_client_t * context = goep_client; 412 return context->l2cap_psm != 0; 413 } 414 415 void goep_client_request_can_send_now(uint16_t goep_cid){ 416 UNUSED(goep_cid); 417 goep_client_t * context = goep_client; 418 if (context->l2cap_psm){ 419 l2cap_request_can_send_now_event(context->bearer_cid); 420 } else { 421 rfcomm_request_can_send_now_event(context->bearer_cid); 422 } 423 } 424 425 uint8_t goep_client_disconnect(uint16_t goep_cid){ 426 UNUSED(goep_cid); 427 goep_client_t * context = goep_client; 428 if (context->l2cap_psm){ 429 l2cap_disconnect(context->bearer_cid); 430 } else { 431 rfcomm_disconnect(context->bearer_cid); 432 } 433 return ERROR_CODE_SUCCESS; 434 } 435 436 void goep_client_set_connection_id(uint16_t goep_cid, uint32_t connection_id){ 437 UNUSED(goep_cid); 438 goep_client_t * context = goep_client; 439 context->obex_connection_id = connection_id; 440 } 441 442 uint8_t goep_client_get_request_opcode(uint16_t goep_cid){ 443 UNUSED(goep_cid); 444 goep_client_t * context = goep_client; 445 return context->obex_opcode; 446 } 447 448 void goep_client_request_create_connect(uint16_t goep_cid, uint8_t obex_version_number, uint8_t flags, uint16_t maximum_obex_packet_length){ 449 UNUSED(goep_cid); 450 goep_client_t * context = goep_client; 451 goep_client_packet_init(goep_cid, OBEX_OPCODE_CONNECT); 452 453 // workaround: limit OBEX packet len to L2CAP/RFCOMM MTU to avoid handling of fragemented packets 454 maximum_obex_packet_length = btstack_min(maximum_obex_packet_length, context->bearer_mtu); 455 456 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 457 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 458 obex_message_builder_request_create_connect(buffer, buffer_len, obex_version_number, flags, maximum_obex_packet_length); 459 } 460 461 void goep_client_request_create_get(uint16_t goep_cid){ 462 UNUSED(goep_cid); 463 goep_client_t * context = goep_client; 464 goep_client_packet_init(goep_cid, OBEX_OPCODE_GET | OBEX_OPCODE_FINAL_BIT_MASK); 465 466 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 467 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 468 obex_message_builder_request_create_get(buffer, buffer_len, context->obex_connection_id); 469 } 470 471 void goep_client_request_create_put(uint16_t goep_cid){ 472 UNUSED(goep_cid); 473 goep_client_t * context = goep_client; 474 goep_client_packet_init(goep_cid, OBEX_OPCODE_PUT | OBEX_OPCODE_FINAL_BIT_MASK); 475 476 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 477 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 478 obex_message_builder_request_create_put(buffer, buffer_len, context->obex_connection_id); 479 } 480 481 void goep_client_request_create_set_path(uint16_t goep_cid, uint8_t flags){ 482 UNUSED(goep_cid); 483 goep_client_t * context = goep_client; 484 goep_client_packet_init(goep_cid, OBEX_OPCODE_SETPATH); 485 486 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 487 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 488 obex_message_builder_request_create_set_path(buffer, buffer_len, flags, context->obex_connection_id); 489 } 490 491 void goep_client_request_create_abort(uint16_t goep_cid){ 492 UNUSED(goep_cid); 493 goep_client_t * context = goep_client; 494 goep_client_packet_init(goep_cid, OBEX_OPCODE_ABORT); 495 496 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 497 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 498 obex_message_builder_request_create_abort(buffer, buffer_len, context->obex_connection_id); 499 } 500 501 void goep_client_request_create_disconnect(uint16_t goep_cid){ 502 UNUSED(goep_cid); 503 goep_client_t * context = goep_client; 504 goep_client_packet_init(goep_cid, OBEX_OPCODE_DISCONNECT); 505 506 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 507 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 508 obex_message_builder_request_create_disconnect(buffer, buffer_len, context->obex_connection_id); 509 } 510 511 void goep_client_header_add_byte(uint16_t goep_cid, uint8_t header_type, uint8_t value){ 512 UNUSED(goep_cid); 513 goep_client_t * context = goep_client; 514 515 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 516 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 517 obex_message_builder_header_add_byte(buffer, buffer_len, header_type, value); 518 } 519 520 void goep_client_header_add_word(uint16_t goep_cid, uint8_t header_type, uint32_t value){ 521 UNUSED(goep_cid); 522 goep_client_t * context = goep_client; 523 524 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 525 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 526 obex_message_builder_header_add_word(buffer, buffer_len, header_type, value); 527 } 528 529 void goep_client_header_add_variable(uint16_t goep_cid, uint8_t header_type, const uint8_t * header_data, uint16_t header_data_length){ 530 UNUSED(goep_cid); 531 goep_client_t * context = goep_client; 532 533 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 534 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 535 obex_message_builder_header_add_variable(buffer, buffer_len, header_type, header_data, header_data_length); 536 } 537 538 void goep_client_header_add_srm_enable(uint16_t goep_cid){ 539 UNUSED(goep_cid); 540 goep_client_t * context = goep_client; 541 542 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 543 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 544 obex_message_builder_header_add_srm_enable(buffer, buffer_len); 545 } 546 547 void goep_client_header_add_target(uint16_t goep_cid, const uint8_t * target, uint16_t length){ 548 UNUSED(goep_cid); 549 goep_client_t * context = goep_client; 550 551 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 552 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 553 obex_message_builder_header_add_target(buffer, buffer_len, target, length); 554 } 555 556 void goep_client_header_add_application_parameters(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 557 UNUSED(goep_cid); 558 goep_client_t * context = goep_client; 559 560 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 561 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 562 obex_message_builder_header_add_application_parameters(buffer, buffer_len, data, length); 563 } 564 565 void goep_client_header_add_challenge_response(uint16_t goep_cid, const uint8_t * data, uint16_t length){ 566 UNUSED(goep_cid); 567 goep_client_t * context = goep_client; 568 569 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 570 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 571 obex_message_builder_header_add_challenge_response(buffer, buffer_len, data, length); 572 } 573 574 void goep_client_body_add_static(uint16_t goep_cid, const uint8_t * data, uint32_t length){ 575 UNUSED(goep_cid); 576 goep_client_t * context = goep_client; 577 578 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 579 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 580 obex_message_builder_body_add_static(buffer, buffer_len, data, length); 581 } 582 583 void goep_client_header_add_name(uint16_t goep_cid, const char * name){ 584 UNUSED(goep_cid); 585 goep_client_t * context = goep_client; 586 587 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 588 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 589 obex_message_builder_header_add_name(buffer, buffer_len, name); 590 } 591 592 void goep_client_header_add_name_prefix(uint16_t goep_cid, const char * name, uint16_t name_len){ 593 UNUSED(goep_cid); 594 goep_client_t * context = goep_client; 595 596 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 597 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 598 obex_message_builder_header_add_name_prefix(buffer, buffer_len, name, name_len); 599 } 600 601 void goep_client_header_add_type(uint16_t goep_cid, const char * type){ 602 UNUSED(goep_cid); 603 goep_client_t * context = goep_client; 604 605 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 606 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 607 obex_message_builder_header_add_type(buffer, buffer_len, type); 608 } 609 610 uint16_t goep_client_request_get_max_body_size(uint16_t goep_cid){ 611 UNUSED(goep_cid); 612 goep_client_t * context = goep_client; 613 614 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 615 uint16_t buffer_len = goep_client_get_outgoing_buffer_len(context); 616 uint16_t pos = big_endian_read_16(buffer, 1); 617 return buffer_len - pos; 618 } 619 620 int goep_client_execute(uint16_t goep_cid){ 621 UNUSED(goep_cid); 622 goep_client_t * context = goep_client; 623 uint8_t * buffer = goep_client_get_outgoing_buffer(context); 624 uint16_t pos = big_endian_read_16(buffer, 1); 625 if (context->l2cap_psm){ 626 return l2cap_send(context->bearer_cid, buffer, pos); 627 } else { 628 return rfcomm_send_prepared(context->bearer_cid, pos); 629 } 630 } 631 632