1 /* 2 * Copyright (C) 2016 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 MATTHIAS 24 * RINGWALD 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__ "avdtp_initiator.c" 39 40 #include <stdint.h> 41 #include <string.h> 42 43 #include "bluetooth_psm.h" 44 #include "bluetooth_sdp.h" 45 #include "btstack_debug.h" 46 #include "btstack_event.h" 47 #include "l2cap.h" 48 #include "classic/avdtp.h" 49 #include "classic/avdtp_util.h" 50 #include "classic/avdtp_initiator.h" 51 52 static int avdtp_initiator_send_signaling_cmd(uint16_t cid, avdtp_signal_identifier_t identifier, uint8_t transaction_label){ 53 uint8_t command[2]; 54 command[0] = avdtp_header(transaction_label, AVDTP_SINGLE_PACKET, AVDTP_CMD_MSG); 55 command[1] = (uint8_t)identifier; 56 return l2cap_send(cid, command, sizeof(command)); 57 } 58 59 static int avdtp_initiator_send_signaling_cmd_with_seid(uint16_t cid, avdtp_signal_identifier_t identifier, uint8_t transaction_label, uint8_t sep_id){ 60 uint8_t command[3]; 61 command[0] = avdtp_header(transaction_label, AVDTP_SINGLE_PACKET, AVDTP_CMD_MSG); 62 command[1] = (uint8_t)identifier; 63 command[2] = sep_id << 2; 64 return l2cap_send(cid, command, sizeof(command)); 65 } 66 67 static int avdtp_initiator_send_signaling_cmd_delay_report(uint16_t cid, uint8_t transaction_label, uint8_t sep_id, uint16_t delay_ms){ 68 uint8_t command[5]; 69 command[0] = avdtp_header(transaction_label, AVDTP_SINGLE_PACKET, AVDTP_CMD_MSG); 70 command[1] = AVDTP_SI_DELAYREPORT; 71 command[2] = sep_id << 2; 72 big_endian_store_16(command, 3, delay_ms); 73 return l2cap_send(cid, command, sizeof(command)); 74 } 75 76 void avdtp_initiator_stream_config_subsm(avdtp_connection_t * connection, uint8_t *packet, uint16_t size, int offset, avdtp_context_t * context){ 77 // int status = 0; 78 avdtp_stream_endpoint_t * stream_endpoint = NULL; 79 80 avdtp_sep_t sep; 81 if (connection->initiator_connection_state == AVDTP_SIGNALING_CONNECTION_INITIATOR_W4_ANSWER) { 82 connection->initiator_connection_state = AVDTP_SIGNALING_CONNECTION_INITIATOR_IDLE; 83 } else { 84 stream_endpoint = avdtp_stream_endpoint_associated_with_acp_seid(connection->initiator_remote_seid, context); 85 if (!stream_endpoint){ 86 stream_endpoint = avdtp_stream_endpoint_with_seid(connection->initiator_local_seid, context); 87 } 88 if (!stream_endpoint) return; 89 sep.seid = connection->initiator_remote_seid; 90 91 if (stream_endpoint->initiator_config_state != AVDTP_INITIATOR_W4_ANSWER) return; 92 stream_endpoint->initiator_config_state = AVDTP_INITIATOR_STREAM_CONFIG_IDLE; 93 } 94 95 switch (connection->initiator_signaling_packet.message_type){ 96 case AVDTP_RESPONSE_ACCEPT_MSG: 97 switch (connection->initiator_signaling_packet.signal_identifier){ 98 case AVDTP_SI_DISCOVER:{ 99 if (connection->initiator_signaling_packet.transaction_label != connection->initiator_transaction_label){ 100 log_info(" unexpected transaction label, got %d, expected %d", connection->initiator_signaling_packet.transaction_label, connection->initiator_transaction_label); 101 // status = BAD_HEADER_FORMAT; 102 break; 103 } 104 105 if (size == 3){ 106 log_info(" ERROR code %02x", packet[offset]); 107 break; 108 } 109 110 int i; 111 for (i = offset; i < size; i += 2){ 112 sep.seid = packet[i] >> 2; 113 offset++; 114 if ((sep.seid < 0x01) || (sep.seid > 0x3E)){ 115 log_info(" invalid sep id"); 116 // status = BAD_ACP_SEID; 117 break; 118 } 119 sep.in_use = (packet[i] >> 1) & 0x01; 120 sep.media_type = (avdtp_media_type_t)(packet[i+1] >> 4); 121 sep.type = (avdtp_sep_type_t)((packet[i+1] >> 3) & 0x01); 122 avdtp_signaling_emit_sep(context->avdtp_callback, connection->avdtp_cid, sep); 123 } 124 avdtp_signaling_emit_sep_done(context->avdtp_callback, connection->avdtp_cid); 125 break; 126 } 127 128 case AVDTP_SI_GET_CAPABILITIES: 129 case AVDTP_SI_GET_ALL_CAPABILITIES: 130 sep.registered_service_categories = avdtp_unpack_service_capabilities(connection, connection->initiator_signaling_packet.signal_identifier, &sep.capabilities, packet+offset, size-offset); 131 avdtp_emit_capabilities(context->avdtp_callback, connection->avdtp_cid, connection->initiator_local_seid, connection->initiator_remote_seid, &sep.capabilities, sep.registered_service_categories); 132 break; 133 case AVDTP_SI_DELAYREPORT: 134 avdtp_signaling_emit_delay(context->avdtp_callback, connection->avdtp_cid, connection->initiator_local_seid, little_endian_read_16(packet, offset)); 135 break; 136 case AVDTP_SI_GET_CONFIGURATION: 137 // sep.configured_service_categories = avdtp_unpack_service_capabilities(connection, &sep.configuration, packet+offset, size-offset); 138 // if (get_bit16(sep.configured_service_categories, AVDTP_MEDIA_CODEC)){ 139 // switch (sep.configuration.media_codec.media_codec_type){ 140 // case AVDTP_CODEC_SBC: 141 // avdtp_signaling_emit_media_codec_sbc_configuration(context->avdtp_callback, connection->avdtp_cid, connection->initiator_local_seid, connection->remote_seid, 142 // sep.configuration.media_codec.media_type, sep.configuration.media_codec.media_codec_information); 143 // break; 144 // default: 145 // avdtp_signaling_emit_media_codec_other_configuration(context->avdtp_callback, connection->avdtp_cid, connection->initiator_local_seid, connection->remote_seid, sep.configuration.media_codec); 146 // break; 147 // } 148 // } 149 break; 150 151 case AVDTP_SI_RECONFIGURE: 152 if (!stream_endpoint){ 153 log_error("AVDTP_SI_RECONFIGURE: stream endpoint is null"); 154 break; 155 } 156 // copy sbc media codec info 157 stream_endpoint->remote_sep.configured_service_categories |= stream_endpoint->remote_configuration_bitmap; 158 stream_endpoint->remote_sep.configuration = stream_endpoint->remote_configuration; 159 (void)memcpy(stream_endpoint->media_codec_sbc_info, 160 stream_endpoint->remote_configuration.media_codec.media_codec_information, 161 4); 162 stream_endpoint->remote_sep.configuration.media_codec.media_codec_information = stream_endpoint->media_codec_sbc_info; 163 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_OPENED; 164 break; 165 166 case AVDTP_SI_SET_CONFIGURATION:{ 167 if (!stream_endpoint){ 168 log_error("AVDTP_SI_SET_CONFIGURATION: stream endpoint is null"); 169 break; 170 } 171 sep.configured_service_categories = stream_endpoint->remote_configuration_bitmap; 172 sep.configuration = stream_endpoint->remote_configuration; 173 sep.in_use = 1; 174 175 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_CONFIGURED; 176 stream_endpoint->remote_sep = sep; 177 stream_endpoint->connection = connection; 178 connection->configuration_state = AVDTP_CONFIGURATION_STATE_LOCAL_CONFIGURED; 179 180 log_info("INT: configured remote seid %d, to %p", stream_endpoint->remote_sep.seid, stream_endpoint); 181 182 switch (stream_endpoint->media_codec_type){ 183 case AVDTP_CODEC_SBC: 184 avdtp_signaling_emit_media_codec_sbc_configuration(context->avdtp_callback, connection->avdtp_cid, connection->initiator_local_seid, connection->initiator_remote_seid, 185 stream_endpoint->media_type, stream_endpoint->media_codec_sbc_info); 186 break; 187 default: 188 // TODO: we don\t have codec info to emit config 189 avdtp_signaling_emit_media_codec_other_configuration(context->avdtp_callback, connection->avdtp_cid, connection->initiator_local_seid, connection->initiator_remote_seid, sep.configuration.media_codec); 190 break; 191 } 192 break; 193 } 194 195 case AVDTP_SI_OPEN: 196 if (!stream_endpoint){ 197 log_error("AVDTP_SI_OPEN: stream endpoint is null"); 198 break; 199 } 200 if (stream_endpoint->state != AVDTP_STREAM_ENDPOINT_W2_REQUEST_OPEN_STREAM) { 201 log_error("AVDTP_SI_OPEN in wrong stream endpoint state"); 202 return; 203 } 204 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_W4_L2CAP_FOR_MEDIA_CONNECTED; 205 connection->initiator_local_seid = stream_endpoint->sep.seid; 206 l2cap_create_channel(context->packet_handler, connection->remote_addr, BLUETOOTH_PSM_AVDTP, 0xffff, NULL); 207 return; 208 case AVDTP_SI_START: 209 if (!stream_endpoint){ 210 log_error("AVDTP_SI_START: stream endpoint is null"); 211 break; 212 } 213 if (stream_endpoint->state != AVDTP_STREAM_ENDPOINT_OPENED) { 214 log_error("AVDTP_SI_START in wrong stream endpoint state"); 215 return; 216 } 217 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_STREAMING; 218 break; 219 case AVDTP_SI_SUSPEND: 220 if (!stream_endpoint){ 221 log_error("AVDTP_SI_SUSPEND: stream endpoint is null"); 222 break; 223 } 224 if (stream_endpoint->state != AVDTP_STREAM_ENDPOINT_STREAMING) { 225 log_error("AVDTP_SI_SUSPEND in wrong stream endpoint state"); 226 return; 227 } 228 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_OPENED; 229 break; 230 case AVDTP_SI_CLOSE: 231 if (!stream_endpoint){ 232 log_error("AVDTP_SI_CLOSE: stream endpoint is null"); 233 break; 234 } 235 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_CLOSING; 236 break; 237 case AVDTP_SI_ABORT: 238 if (!stream_endpoint){ 239 log_error("AVDTP_SI_ABORT: stream endpoint is null"); 240 break; 241 } 242 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_ABORTING; 243 break; 244 default: 245 log_info(" AVDTP_RESPONSE_ACCEPT_MSG, signal %d not implemented", connection->initiator_signaling_packet.signal_identifier); 246 break; 247 } 248 avdtp_signaling_emit_accept(context->avdtp_callback, connection->avdtp_cid, 0, connection->initiator_signaling_packet.signal_identifier, true); 249 connection->initiator_transaction_label++; 250 break; 251 case AVDTP_RESPONSE_REJECT_MSG: 252 switch (connection->initiator_signaling_packet.signal_identifier){ 253 case AVDTP_SI_SET_CONFIGURATION: 254 connection->configuration_state = AVDTP_CONFIGURATION_STATE_IDLE; 255 log_info("Received reject for set configuration, role changed from initiator to acceptor. TODO: implement retry."); 256 break; 257 default: 258 break; 259 } 260 log_info(" AVDTP_RESPONSE_REJECT_MSG signal %s", avdtp_si2str(connection->initiator_signaling_packet.signal_identifier)); 261 avdtp_signaling_emit_reject(context->avdtp_callback, connection->avdtp_cid, connection->initiator_local_seid, connection->initiator_signaling_packet.signal_identifier, true); 262 return; 263 case AVDTP_GENERAL_REJECT_MSG: 264 log_info(" AVDTP_GENERAL_REJECT_MSG signal %s", avdtp_si2str(connection->initiator_signaling_packet.signal_identifier)); 265 avdtp_signaling_emit_general_reject(context->avdtp_callback, connection->avdtp_cid, connection->initiator_local_seid, connection->initiator_signaling_packet.signal_identifier, true); 266 return; 267 default: 268 break; 269 } 270 } 271 272 void avdtp_initiator_stream_config_subsm_run(avdtp_connection_t * connection, avdtp_context_t * context){ 273 int sent = 1; 274 switch (connection->initiator_connection_state){ 275 case AVDTP_SIGNALING_CONNECTION_INITIATOR_W2_DISCOVER_SEPS: 276 log_info("INT: AVDTP_SIGNALING_CONNECTION_INITIATOR_W2_DISCOVER_SEPS"); 277 connection->initiator_connection_state = AVDTP_SIGNALING_CONNECTION_INITIATOR_W4_ANSWER; 278 avdtp_initiator_send_signaling_cmd(connection->l2cap_signaling_cid, AVDTP_SI_DISCOVER, connection->initiator_transaction_label); 279 break; 280 case AVDTP_SIGNALING_CONNECTION_INITIATOR_W2_GET_CAPABILITIES: 281 log_info("INT: AVDTP_SIGNALING_CONNECTION_INITIATOR_W2_GET_CAPABILITIES"); 282 connection->initiator_connection_state = AVDTP_SIGNALING_CONNECTION_INITIATOR_W4_ANSWER; 283 avdtp_initiator_send_signaling_cmd_with_seid(connection->l2cap_signaling_cid, AVDTP_SI_GET_CAPABILITIES, connection->initiator_transaction_label, connection->initiator_remote_seid); 284 break; 285 case AVDTP_SIGNALING_CONNECTION_INITIATOR_W2_GET_ALL_CAPABILITIES: 286 log_info("INT: AVDTP_SIGNALING_CONNECTION_INITIATOR_W2_GET_ALL_CAPABILITIES"); 287 connection->initiator_connection_state = AVDTP_SIGNALING_CONNECTION_INITIATOR_W4_ANSWER; 288 avdtp_initiator_send_signaling_cmd_with_seid(connection->l2cap_signaling_cid, AVDTP_SI_GET_ALL_CAPABILITIES, connection->initiator_transaction_label, connection->initiator_remote_seid); 289 break; 290 case AVDTP_SIGNALING_CONNECTION_INITIATOR_W2_GET_CONFIGURATION: 291 log_info("INT: AVDTP_INITIATOR_W4_GET_CONFIGURATION"); 292 connection->initiator_connection_state = AVDTP_SIGNALING_CONNECTION_INITIATOR_W4_ANSWER; 293 avdtp_initiator_send_signaling_cmd_with_seid(connection->l2cap_signaling_cid, AVDTP_SI_GET_CONFIGURATION, connection->initiator_transaction_label, connection->initiator_remote_seid); 294 break; 295 case AVDTP_SIGNALING_CONNECTION_INITIATOR_W2_SEND_DELAY_REPORT: 296 log_info("INT: AVDTP_SIGNALING_CONNECTION_INITIATOR_W4_DELAY_REPORT"); 297 connection->initiator_connection_state = AVDTP_SIGNALING_CONNECTION_INITIATOR_W4_ANSWER; 298 avdtp_initiator_send_signaling_cmd_delay_report(connection->l2cap_signaling_cid, connection->initiator_transaction_label, 299 connection->initiator_remote_seid, connection->delay_ms); 300 break; 301 default: 302 sent = 0; 303 break; 304 } 305 306 if (sent) return; 307 sent = 1; 308 309 avdtp_stream_endpoint_t * stream_endpoint = NULL; 310 311 stream_endpoint = avdtp_stream_endpoint_associated_with_acp_seid(connection->initiator_remote_seid, context); 312 if (!stream_endpoint){ 313 stream_endpoint = avdtp_stream_endpoint_with_seid(connection->initiator_local_seid, context); 314 } 315 if (!stream_endpoint) return; 316 317 avdtp_initiator_stream_endpoint_state_t stream_endpoint_state = stream_endpoint->initiator_config_state; 318 stream_endpoint->initiator_config_state = AVDTP_INITIATOR_W4_ANSWER; 319 320 if (stream_endpoint->start_stream){ 321 stream_endpoint->start_stream = 0; 322 if (stream_endpoint->state == AVDTP_STREAM_ENDPOINT_OPENED){ 323 connection->initiator_local_seid = stream_endpoint->sep.seid; 324 connection->initiator_remote_seid = stream_endpoint->remote_sep.seid; 325 avdtp_initiator_send_signaling_cmd_with_seid(connection->l2cap_signaling_cid, AVDTP_SI_START, connection->initiator_transaction_label++, connection->initiator_remote_seid); 326 return; 327 } 328 return; 329 } 330 331 if (stream_endpoint->stop_stream){ 332 stream_endpoint->stop_stream = 0; 333 if (stream_endpoint->state >= AVDTP_STREAM_ENDPOINT_OPENED){ 334 connection->initiator_local_seid = stream_endpoint->sep.seid; 335 connection->initiator_remote_seid = stream_endpoint->remote_sep.seid; 336 avdtp_initiator_send_signaling_cmd_with_seid(connection->l2cap_signaling_cid, AVDTP_SI_CLOSE, connection->initiator_transaction_label++, connection->initiator_remote_seid); 337 return; 338 } 339 } 340 341 if (stream_endpoint->abort_stream){ 342 stream_endpoint->abort_stream = 0; 343 switch (stream_endpoint->state){ 344 case AVDTP_STREAM_ENDPOINT_CONFIGURED: 345 case AVDTP_STREAM_ENDPOINT_CLOSING: 346 case AVDTP_STREAM_ENDPOINT_OPENED: 347 case AVDTP_STREAM_ENDPOINT_STREAMING: 348 connection->initiator_local_seid = stream_endpoint->sep.seid; 349 connection->initiator_remote_seid = stream_endpoint->remote_sep.seid; 350 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_ABORTING; 351 avdtp_initiator_send_signaling_cmd_with_seid(connection->l2cap_signaling_cid, AVDTP_SI_ABORT, connection->initiator_transaction_label++, connection->initiator_remote_seid); 352 return; 353 default: 354 break; 355 } 356 } 357 358 if (stream_endpoint->suspend_stream){ 359 stream_endpoint->suspend_stream = 0; 360 if (stream_endpoint->state == AVDTP_STREAM_ENDPOINT_STREAMING){ 361 connection->initiator_local_seid = stream_endpoint->sep.seid; 362 connection->initiator_remote_seid = stream_endpoint->remote_sep.seid; 363 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_STREAMING; 364 avdtp_initiator_send_signaling_cmd_with_seid(connection->l2cap_signaling_cid, AVDTP_SI_SUSPEND, connection->initiator_transaction_label, connection->initiator_remote_seid); 365 return; 366 } 367 } 368 369 if (stream_endpoint->send_stream){ 370 stream_endpoint->send_stream = 0; 371 if (stream_endpoint->state == AVDTP_STREAM_ENDPOINT_STREAMING){ 372 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_STREAMING; 373 avdtp_streaming_emit_can_send_media_packet_now(context->avdtp_callback, connection->avdtp_cid, avdtp_local_seid(stream_endpoint), stream_endpoint->sequence_number); 374 return; 375 } 376 } 377 378 switch (stream_endpoint_state){ 379 case AVDTP_INITIATOR_W2_SET_CONFIGURATION: 380 case AVDTP_INITIATOR_W2_RECONFIGURE_STREAM_WITH_SEID:{ 381 if ((stream_endpoint_state == AVDTP_INITIATOR_W2_SET_CONFIGURATION) && (connection->configuration_state != AVDTP_CONFIGURATION_STATE_LOCAL_INITIATED)){ 382 log_info("initiator SM stop sending SET_CONFIGURATION cmd:"); 383 break; 384 } 385 log_info("INT: AVDTP_INITIATOR_W2_(RE)CONFIGURATION bitmap, int seid %d, acp seid %d", connection->initiator_local_seid, connection->initiator_remote_seid); 386 // log_info_hexdump( connection->remote_capabilities.media_codec.media_codec_information, connection->remote_capabilities.media_codec.media_codec_information_len); 387 connection->initiator_signaling_packet.acp_seid = connection->initiator_remote_seid; 388 connection->initiator_signaling_packet.int_seid = connection->initiator_local_seid; 389 390 connection->initiator_signaling_packet.signal_identifier = AVDTP_SI_SET_CONFIGURATION; 391 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_CONFIGURATION_SUBSTATEMACHINE; 392 if (stream_endpoint_state == AVDTP_INITIATOR_W2_RECONFIGURE_STREAM_WITH_SEID){ 393 connection->initiator_signaling_packet.signal_identifier = AVDTP_SI_RECONFIGURE; 394 } 395 396 avdtp_prepare_capabilities(&connection->initiator_signaling_packet, connection->initiator_transaction_label, stream_endpoint->remote_configuration_bitmap, stream_endpoint->remote_configuration, connection->initiator_signaling_packet.signal_identifier); 397 l2cap_reserve_packet_buffer(); 398 uint8_t * out_buffer = l2cap_get_outgoing_buffer(); 399 uint16_t pos = avdtp_signaling_create_fragment(connection->l2cap_signaling_cid, &connection->initiator_signaling_packet, out_buffer); 400 if ((connection->initiator_signaling_packet.packet_type != AVDTP_SINGLE_PACKET) && (connection->initiator_signaling_packet.packet_type != AVDTP_END_PACKET)){ 401 stream_endpoint->initiator_config_state = AVDTP_INITIATOR_FRAGMENTATED_COMMAND; 402 log_info("INT: fragmented"); 403 } 404 l2cap_send_prepared(connection->l2cap_signaling_cid, pos); 405 break; 406 } 407 case AVDTP_INITIATOR_FRAGMENTATED_COMMAND:{ 408 l2cap_reserve_packet_buffer(); 409 uint8_t * out_buffer = l2cap_get_outgoing_buffer(); 410 uint16_t pos = avdtp_signaling_create_fragment(connection->l2cap_signaling_cid, &connection->initiator_signaling_packet, out_buffer); 411 if ((connection->initiator_signaling_packet.packet_type != AVDTP_SINGLE_PACKET) && (connection->initiator_signaling_packet.packet_type != AVDTP_END_PACKET)){ 412 stream_endpoint->initiator_config_state = AVDTP_INITIATOR_FRAGMENTATED_COMMAND; 413 log_info("INT: fragmented"); 414 } 415 l2cap_send_prepared(connection->l2cap_signaling_cid, pos); 416 break; 417 } 418 case AVDTP_INITIATOR_W2_OPEN_STREAM: 419 switch (stream_endpoint->state){ 420 case AVDTP_STREAM_ENDPOINT_W2_REQUEST_OPEN_STREAM: 421 log_info("INT: AVDTP_STREAM_ENDPOINT_W2_REQUEST_OPEN_STREAM"); 422 avdtp_initiator_send_signaling_cmd_with_seid(connection->l2cap_signaling_cid, AVDTP_SI_OPEN, connection->initiator_transaction_label, connection->initiator_remote_seid); 423 break; 424 default: 425 sent = 0; 426 break; 427 } 428 break; 429 default: 430 sent = 0; 431 break; 432 } 433 434 // check fragmentation 435 if ((connection->initiator_signaling_packet.packet_type != AVDTP_SINGLE_PACKET) && (connection->initiator_signaling_packet.packet_type != AVDTP_END_PACKET)){ 436 avdtp_request_can_send_now_initiator(connection, connection->l2cap_signaling_cid); 437 } 438 } 439