1 /****************************************************************************** 2 * 3 * Copyright (C) 1998-2012 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 #include <string.h> 20 21 #include "bt_target.h" 22 #if defined(HL_INCLUDED) && (HL_INCLUDED == TRUE) 23 24 #include "sdp_api.h" 25 #include "bta_hl_int.h" 26 #include "utl.h" 27 28 /******************************************************************************* 29 ** 30 ** Function bta_hl_fill_sup_feature_list 31 ** 32 ** Description Fill the supported features from teh SDP record 33 ** 34 ** Returns TRUE if found, FALSE if not 35 ** If found, the passed protocol list element is filled in. 36 ** 37 *******************************************************************************/ 38 BOOLEAN bta_hl_fill_sup_feature_list( const tSDP_DISC_ATTR *p_attr, 39 tBTA_HL_SUP_FEATURE_LIST_ELEM *p_list) 40 { 41 tSDP_DISC_ATTR *p_sattr; 42 UINT8 seq_len, item_cnt; 43 UINT8 list_cnt=0; 44 BOOLEAN status=TRUE; 45 46 for (p_attr = p_attr->attr_value.v.p_sub_attr; p_attr; p_attr = p_attr->p_next_attr) 47 { 48 /* mdep sequence */ 49 if (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) != DATA_ELE_SEQ_DESC_TYPE) 50 { 51 return(FALSE); 52 } 53 seq_len =SDP_DISC_ATTR_LEN(p_attr->attr_len_type); 54 item_cnt=0; 55 56 for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr && (item_cnt < 4) ; p_sattr = p_sattr->p_next_attr) 57 { 58 /* for each mdep list */ 59 60 p_list->list_elem[list_cnt].p_mdep_desp = NULL; 61 switch (item_cnt) 62 { 63 case 0: 64 p_list->list_elem[list_cnt].mdep_id = p_sattr->attr_value.v.u8; 65 break; 66 case 1: 67 p_list->list_elem[list_cnt].data_type = p_sattr->attr_value.v.u16; 68 break; 69 case 2: 70 p_list->list_elem[list_cnt].mdep_role = (tBTA_HL_MDEP_ROLE) p_sattr->attr_value.v.u8; 71 break; 72 case 3: 73 p_list->list_elem[list_cnt].p_mdep_desp = (char *) p_sattr->attr_value.v.array; 74 break; 75 } 76 77 item_cnt++; 78 } 79 list_cnt++; 80 } 81 p_list->num_elems = list_cnt; 82 return(status); 83 } 84 85 /******************************************************************************* 86 ** 87 ** Function bta_hl_compose_supported_feature_list 88 ** 89 ** Description This function is called to compose a data sequence from 90 ** the supported feature element list struct pointer 91 ** 92 ** Returns the length of the data sequence 93 ** 94 *******************************************************************************/ 95 int bta_hl_compose_supported_feature_list( UINT8 *p, UINT16 num_elem, 96 const tBTA_HL_SUP_FEATURE_ELEM *p_elem_list) 97 { 98 UINT16 xx, str_len, seq_len; 99 UINT8 *p_head = p; 100 101 for (xx = 0; xx < num_elem; xx++, p_elem_list++) 102 { 103 UINT8_TO_BE_STREAM (p, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE); 104 seq_len=7; 105 str_len=0; 106 if (p_elem_list->p_mdep_desp) 107 { 108 str_len = strlen(p_elem_list->p_mdep_desp)+1; 109 seq_len += str_len+2; /* todo add a # symbol for 2 */ 110 } 111 112 *p++ = (UINT8) seq_len; 113 114 UINT8_TO_BE_STREAM (p, (UINT_DESC_TYPE << 3) | SIZE_ONE_BYTE); 115 UINT8_TO_BE_STREAM (p, p_elem_list->mdep_id); 116 UINT8_TO_BE_STREAM (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES); 117 UINT16_TO_BE_STREAM (p, p_elem_list->data_type); 118 UINT8_TO_BE_STREAM (p, (UINT_DESC_TYPE << 3) | SIZE_ONE_BYTE); 119 UINT8_TO_BE_STREAM (p, p_elem_list->mdep_role); 120 121 if (str_len) 122 { 123 UINT8_TO_BE_STREAM (p, (TEXT_STR_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE); 124 UINT8_TO_BE_STREAM (p, str_len); 125 ARRAY_TO_BE_STREAM(p, p_elem_list->p_mdep_desp, str_len); 126 } 127 } 128 129 return(p - p_head); 130 } 131 132 /******************************************************************************* 133 ** 134 ** Function bta_hl_add_sup_feature_list 135 ** 136 ** Description This function is called to add a protocol descriptor list to 137 ** a record. This would be through the SDP database maintenance API. 138 ** If the protocol list already exists in the record, it is replaced 139 ** with the new list. 140 ** 141 ** Returns TRUE if added OK, else FALSE 142 ** 143 *******************************************************************************/ 144 BOOLEAN bta_hl_add_sup_feature_list (UINT32 handle, UINT16 num_elem, 145 const tBTA_HL_SUP_FEATURE_ELEM *p_elem_list) 146 { 147 UINT8 *p_buf; 148 int offset; 149 BOOLEAN result = FALSE; 150 151 if ((p_buf = (UINT8 *)GKI_getbuf(BTA_HL_SUP_FEATURE_SDP_BUF_SIZE)) != NULL) 152 { 153 offset = bta_hl_compose_supported_feature_list(p_buf, num_elem, p_elem_list); 154 result = SDP_AddAttribute (handle, ATTR_ID_HDP_SUP_FEAT_LIST, 155 DATA_ELE_SEQ_DESC_TYPE, (UINT32) offset, p_buf); 156 GKI_freebuf(p_buf); 157 } 158 return result; 159 } 160 161 /***************************************************************************** 162 ** 163 ** Function: bta_hl_sdp_update 164 ** 165 ** Purpose: Register an HDP application with SDP 166 ** 167 ** Parameters: 168 ** 169 ** Returns: void 170 ** 171 *****************************************************************************/ 172 tBTA_HL_STATUS bta_hl_sdp_update (UINT8 app_id) 173 { 174 UINT16 svc_class_id_list[BTA_HL_NUM_SVC_ELEMS]; 175 tSDP_PROTOCOL_ELEM proto_elem_list[BTA_HL_NUM_PROTO_ELEMS]; 176 tSDP_PROTO_LIST_ELEM add_proto_list; 177 tBTA_HL_SUP_FEATURE_LIST_ELEM sup_feature_list; 178 UINT16 browse_list[] = {UUID_SERVCLASS_PUBLIC_BROWSE_GROUP}; 179 UINT8 i,j, cnt,mdep_id, mdep_role; 180 UINT8 data_exchange_spec = BTA_HL_SDP_IEEE_11073_20601; 181 UINT8 mcap_sup_proc = BTA_HL_MCAP_SUP_PROC_MASK; 182 UINT16 profile_uuid = UUID_SERVCLASS_HDP_PROFILE; 183 UINT16 version = BTA_HL_VERSION_01_00; 184 UINT8 num_services=1; 185 tBTA_HL_APP_CB *p_cb = BTA_HL_GET_APP_CB_PTR(0); 186 BOOLEAN result = TRUE; 187 tBTA_HL_STATUS status = BTA_HL_STATUS_OK; 188 UNUSED(app_id); 189 190 if ((p_cb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SOURCE) && 191 (!p_cb->sup_feature.advertize_source_sdp)) 192 { 193 return BTA_HL_STATUS_OK; 194 } 195 196 num_services=1; 197 svc_class_id_list[0]= UUID_SERVCLASS_HDP_SOURCE; 198 if (p_cb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SINK) 199 { 200 svc_class_id_list[0]= UUID_SERVCLASS_HDP_SINK; 201 } 202 else 203 { 204 if (p_cb->sup_feature.app_role_mask != BTA_HL_MDEP_ROLE_MASK_SOURCE) 205 { 206 /* dual role */ 207 num_services=2; 208 svc_class_id_list[1]= UUID_SERVCLASS_HDP_SINK; 209 } 210 } 211 result &= SDP_AddServiceClassIdList(p_cb->sdp_handle, num_services, svc_class_id_list); 212 213 if (result) 214 { 215 /* add the protocol element sequence */ 216 proto_elem_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP; 217 proto_elem_list[0].num_params = 1; 218 proto_elem_list[0].params[0] = p_cb->ctrl_psm; 219 proto_elem_list[1].protocol_uuid = UUID_PROTOCOL_MCAP_CTRL; 220 proto_elem_list[1].num_params = 1; 221 proto_elem_list[1].params[0] = version; 222 result &= SDP_AddProtocolList(p_cb->sdp_handle, BTA_HL_NUM_PROTO_ELEMS, proto_elem_list); 223 224 result &= SDP_AddProfileDescriptorList(p_cb->sdp_handle, profile_uuid, version); 225 } 226 227 if (result) 228 { 229 add_proto_list.num_elems = BTA_HL_NUM_ADD_PROTO_ELEMS; 230 add_proto_list.list_elem[0].protocol_uuid = UUID_PROTOCOL_L2CAP; 231 add_proto_list.list_elem[0].num_params = 1; 232 add_proto_list.list_elem[0].params[0] = p_cb->data_psm; 233 add_proto_list.list_elem[1].protocol_uuid = UUID_PROTOCOL_MCAP_DATA; 234 add_proto_list.list_elem[1].num_params = 0; 235 result &= SDP_AddAdditionProtoLists(p_cb->sdp_handle, BTA_HL_NUM_ADD_PROTO_LISTS, 236 (tSDP_PROTO_LIST_ELEM *)&add_proto_list); 237 } 238 239 if (result) 240 { 241 if (p_cb->srv_name[0] ) 242 { 243 result &= SDP_AddAttribute(p_cb->sdp_handle, 244 (UINT16)ATTR_ID_SERVICE_NAME, 245 (UINT8)TEXT_STR_DESC_TYPE, 246 (UINT32)(strlen(p_cb->srv_name) + 1), 247 (UINT8 *)p_cb->srv_name); 248 } /* end of setting optional service name */ 249 } 250 251 if (result) 252 { 253 if (p_cb->srv_desp[0] ) 254 { 255 result &= SDP_AddAttribute(p_cb->sdp_handle, 256 (UINT16)ATTR_ID_SERVICE_DESCRIPTION, 257 (UINT8)TEXT_STR_DESC_TYPE, 258 (UINT32)(strlen(p_cb->srv_desp) + 1), 259 (UINT8 *)p_cb->srv_desp); 260 261 } /* end of setting optional service description */ 262 263 } 264 265 if (result) 266 { 267 if (p_cb->provider_name[0] ) 268 { 269 result &= SDP_AddAttribute(p_cb->sdp_handle, 270 (UINT16)ATTR_ID_PROVIDER_NAME, 271 (UINT8)TEXT_STR_DESC_TYPE, 272 (UINT32)(strlen(p_cb->provider_name) + 1), 273 (UINT8 *)p_cb->provider_name); 274 } /* end of setting optional provider name */ 275 } 276 277 /* add supported feture list */ 278 279 if (result) 280 { 281 cnt=0; 282 for (i=1; i< BTA_HL_NUM_MDEPS; i++) 283 { 284 if (p_cb->sup_feature.mdep[i].mdep_id) 285 { 286 mdep_id = (UINT8)p_cb->sup_feature.mdep[i].mdep_id; 287 mdep_role = (UINT8)p_cb->sup_feature.mdep[i].mdep_cfg.mdep_role; 288 289 APPL_TRACE_DEBUG("num_of_mdep_data_types %d ", p_cb->sup_feature.mdep[i].mdep_cfg.num_of_mdep_data_types); 290 for (j=0; j<p_cb->sup_feature.mdep[i].mdep_cfg.num_of_mdep_data_types; j++) 291 { 292 sup_feature_list.list_elem[cnt].mdep_id = mdep_id; 293 sup_feature_list.list_elem[cnt].mdep_role = mdep_role; 294 sup_feature_list.list_elem[cnt].data_type = p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].data_type; 295 if (p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].desp[0] != '\0') 296 { 297 sup_feature_list.list_elem[cnt].p_mdep_desp = p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].desp; 298 } 299 else 300 { 301 sup_feature_list.list_elem[cnt].p_mdep_desp = NULL; 302 } 303 304 cnt++; 305 if (cnt==BTA_HL_NUM_SUP_FEATURE_ELEMS) 306 { 307 result = FALSE; 308 break; 309 } 310 } 311 } 312 } 313 sup_feature_list.num_elems = cnt; 314 result &= bta_hl_add_sup_feature_list (p_cb->sdp_handle, 315 sup_feature_list.num_elems, 316 sup_feature_list.list_elem); 317 } 318 if (result) 319 { 320 result &= SDP_AddAttribute(p_cb->sdp_handle, ATTR_ID_HDP_DATA_EXCH_SPEC, UINT_DESC_TYPE, 321 (UINT32)1, (UINT8*)&data_exchange_spec); 322 } 323 324 if (result) 325 { 326 327 result &= SDP_AddAttribute(p_cb->sdp_handle, ATTR_ID_HDP_MCAP_SUP_PROC, UINT_DESC_TYPE, 328 (UINT32)1, (UINT8*)&mcap_sup_proc); 329 } 330 331 if (result) 332 { 333 result &= SDP_AddUuidSequence(p_cb->sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list); 334 } 335 336 if (result) 337 { 338 for(i=0; i < num_services; i++) 339 { 340 bta_sys_add_uuid(svc_class_id_list[i]); 341 APPL_TRACE_DEBUG("dbg bta_sys_add_uuid i=%d uuid=0x%x", i, svc_class_id_list[i]); //todo 342 } 343 } 344 else 345 { 346 if (p_cb->sdp_handle) 347 { 348 SDP_DeleteRecord(p_cb->sdp_handle); 349 p_cb->sdp_handle = 0; 350 } 351 status = BTA_HL_STATUS_SDP_FAIL; 352 } 353 #if BTA_HL_DEBUG == TRUE 354 APPL_TRACE_DEBUG("bta_hl_sdp_update status=%s", bta_hl_status_code(status)); 355 #endif 356 return status; 357 } 358 359 360 /***************************************************************************** 361 ** 362 ** Function: bta_hl_sdp_register 363 ** 364 ** Purpose: Register an HDP application with SDP 365 ** 366 ** Parameters: p_cb - Pointer to MA instance control block 367 ** p_service_name - MA server name 368 ** inst_id - MAS instance ID 369 ** msg_type - Supported message type(s) 370 ** 371 ** 372 ** Returns: void 373 ** 374 *****************************************************************************/ 375 tBTA_HL_STATUS bta_hl_sdp_register (UINT8 app_idx) 376 { 377 UINT16 svc_class_id_list[BTA_HL_NUM_SVC_ELEMS]; 378 tSDP_PROTOCOL_ELEM proto_elem_list[BTA_HL_NUM_PROTO_ELEMS]; 379 tSDP_PROTO_LIST_ELEM add_proto_list; 380 tBTA_HL_SUP_FEATURE_LIST_ELEM sup_feature_list; 381 UINT16 browse_list[] = {UUID_SERVCLASS_PUBLIC_BROWSE_GROUP}; 382 UINT8 i,j, cnt,mdep_id, mdep_role; 383 UINT8 data_exchange_spec = BTA_HL_SDP_IEEE_11073_20601; 384 UINT8 mcap_sup_proc = BTA_HL_MCAP_SUP_PROC_MASK; 385 UINT16 profile_uuid = UUID_SERVCLASS_HDP_PROFILE; 386 UINT16 version = BTA_HL_VERSION_01_00; 387 UINT8 num_services=1; 388 tBTA_HL_APP_CB *p_cb = BTA_HL_GET_APP_CB_PTR(app_idx); 389 BOOLEAN result = TRUE; 390 tBTA_HL_STATUS status = BTA_HL_STATUS_OK; 391 392 #if BTA_HL_DEBUG == TRUE 393 APPL_TRACE_DEBUG("bta_hl_sdp_register app_idx=%d",app_idx); 394 #endif 395 396 if ((p_cb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SOURCE) && 397 (!p_cb->sup_feature.advertize_source_sdp)) 398 { 399 return BTA_HL_STATUS_OK; 400 } 401 402 if ((p_cb->sdp_handle = SDP_CreateRecord()) == 0) 403 { 404 return BTA_HL_STATUS_SDP_NO_RESOURCE; 405 } 406 407 num_services=1; 408 svc_class_id_list[0]= UUID_SERVCLASS_HDP_SOURCE; 409 if (p_cb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SINK) 410 { 411 svc_class_id_list[0]= UUID_SERVCLASS_HDP_SINK; 412 } 413 else 414 { 415 if (p_cb->sup_feature.app_role_mask != BTA_HL_MDEP_ROLE_MASK_SOURCE) 416 { 417 /* dual role */ 418 num_services=2; 419 svc_class_id_list[1]= UUID_SERVCLASS_HDP_SINK; 420 } 421 } 422 result &= SDP_AddServiceClassIdList(p_cb->sdp_handle, num_services, svc_class_id_list); 423 424 if (result) 425 { 426 /* add the protocol element sequence */ 427 proto_elem_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP; 428 proto_elem_list[0].num_params = 1; 429 proto_elem_list[0].params[0] = p_cb->ctrl_psm; 430 proto_elem_list[1].protocol_uuid = UUID_PROTOCOL_MCAP_CTRL; 431 proto_elem_list[1].num_params = 1; 432 proto_elem_list[1].params[0] = version; 433 result &= SDP_AddProtocolList(p_cb->sdp_handle, BTA_HL_NUM_PROTO_ELEMS, proto_elem_list); 434 435 result &= SDP_AddProfileDescriptorList(p_cb->sdp_handle, profile_uuid, version); 436 } 437 438 if (result) 439 { 440 add_proto_list.num_elems = BTA_HL_NUM_ADD_PROTO_ELEMS; 441 add_proto_list.list_elem[0].protocol_uuid = UUID_PROTOCOL_L2CAP; 442 add_proto_list.list_elem[0].num_params = 1; 443 add_proto_list.list_elem[0].params[0] = p_cb->data_psm; 444 add_proto_list.list_elem[1].protocol_uuid = UUID_PROTOCOL_MCAP_DATA; 445 add_proto_list.list_elem[1].num_params = 0; 446 result &= SDP_AddAdditionProtoLists(p_cb->sdp_handle, BTA_HL_NUM_ADD_PROTO_LISTS, 447 (tSDP_PROTO_LIST_ELEM *)&add_proto_list); 448 } 449 450 if (result) 451 { 452 if (p_cb->srv_name[0] ) 453 { 454 result &= SDP_AddAttribute(p_cb->sdp_handle, 455 (UINT16)ATTR_ID_SERVICE_NAME, 456 (UINT8)TEXT_STR_DESC_TYPE, 457 (UINT32)(strlen(p_cb->srv_name) + 1), 458 (UINT8 *)p_cb->srv_name); 459 } /* end of setting optional service name */ 460 } 461 462 if (result) 463 { 464 if (p_cb->srv_desp[0] ) 465 { 466 result &= SDP_AddAttribute(p_cb->sdp_handle, 467 (UINT16)ATTR_ID_SERVICE_DESCRIPTION, 468 (UINT8)TEXT_STR_DESC_TYPE, 469 (UINT32)(strlen(p_cb->srv_desp) + 1), 470 (UINT8 *)p_cb->srv_desp); 471 472 } /* end of setting optional service description */ 473 474 } 475 476 if (result) 477 { 478 if (p_cb->provider_name[0] ) 479 { 480 result &= SDP_AddAttribute(p_cb->sdp_handle, 481 (UINT16)ATTR_ID_PROVIDER_NAME, 482 (UINT8)TEXT_STR_DESC_TYPE, 483 (UINT32)(strlen(p_cb->provider_name) + 1), 484 (UINT8 *)p_cb->provider_name); 485 } /* end of setting optional provider name */ 486 } 487 488 /* add supported feture list */ 489 490 if (result) 491 { 492 cnt=0; 493 for (i=1; i<= p_cb->sup_feature.num_of_mdeps; i++) 494 { 495 mdep_id = (UINT8)p_cb->sup_feature.mdep[i].mdep_id; 496 mdep_role = (UINT8)p_cb->sup_feature.mdep[i].mdep_cfg.mdep_role; 497 498 for (j=0; j<p_cb->sup_feature.mdep[i].mdep_cfg.num_of_mdep_data_types; j++) 499 { 500 sup_feature_list.list_elem[cnt].mdep_id = mdep_id; 501 sup_feature_list.list_elem[cnt].mdep_role = mdep_role; 502 sup_feature_list.list_elem[cnt].data_type = p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].data_type; 503 if (p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].desp[0] != '\0') 504 { 505 sup_feature_list.list_elem[cnt].p_mdep_desp = p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].desp; 506 } 507 else 508 { 509 sup_feature_list.list_elem[cnt].p_mdep_desp = NULL; 510 } 511 512 cnt++; 513 if (cnt==BTA_HL_NUM_SUP_FEATURE_ELEMS) 514 { 515 result = FALSE; 516 break; 517 } 518 } 519 } 520 sup_feature_list.num_elems = cnt; 521 result &= bta_hl_add_sup_feature_list (p_cb->sdp_handle, 522 sup_feature_list.num_elems, 523 sup_feature_list.list_elem); 524 } 525 if (result) 526 { 527 result &= SDP_AddAttribute(p_cb->sdp_handle, ATTR_ID_HDP_DATA_EXCH_SPEC, UINT_DESC_TYPE, 528 (UINT32)1, (UINT8*)&data_exchange_spec); 529 } 530 531 if (result) 532 { 533 534 result &= SDP_AddAttribute(p_cb->sdp_handle, ATTR_ID_HDP_MCAP_SUP_PROC, UINT_DESC_TYPE, 535 (UINT32)1, (UINT8*)&mcap_sup_proc); 536 } 537 538 if (result) 539 { 540 result &= SDP_AddUuidSequence(p_cb->sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list); 541 } 542 543 if (result) 544 { 545 for(i=0; i < num_services; i++) 546 { 547 bta_sys_add_uuid(svc_class_id_list[i]); 548 APPL_TRACE_DEBUG("dbg bta_sys_add_uuid i=%d uuid=0x%x", i, svc_class_id_list[i]); //todo 549 } 550 } 551 else 552 { 553 if (p_cb->sdp_handle) 554 { 555 SDP_DeleteRecord(p_cb->sdp_handle); 556 p_cb->sdp_handle = 0; 557 } 558 status = BTA_HL_STATUS_SDP_FAIL; 559 } 560 #if BTA_HL_DEBUG == TRUE 561 APPL_TRACE_DEBUG("bta_hl_sdp_register status=%s", bta_hl_status_code(status)); 562 #endif 563 return status; 564 } 565 566 /******************************************************************************* 567 ** 568 ** Function bta_hl_find_sink_or_src_srv_class_in_db 569 ** 570 ** Description This function queries an SDP database for either a HDP Sink or 571 ** Source service class ID. 572 ** If the p_start_rec pointer is NULL, it looks from the beginning 573 ** of the database, else it continues from the next record after 574 ** p_start_rec. 575 ** 576 ** Returns Pointer to record containing service class, or NULL 577 ** 578 *******************************************************************************/ 579 tSDP_DISC_REC *bta_hl_find_sink_or_src_srv_class_in_db (const tSDP_DISCOVERY_DB *p_db, 580 const tSDP_DISC_REC *p_start_rec) 581 { 582 #if SDP_CLIENT_ENABLED == TRUE 583 tSDP_DISC_REC *p_rec; 584 tSDP_DISC_ATTR *p_attr, *p_sattr; 585 586 /* Must have a valid database */ 587 if (p_db == NULL) 588 return(NULL); 589 590 591 if (!p_start_rec) 592 { 593 594 p_rec = p_db->p_first_rec; 595 } 596 else 597 { 598 p_rec = p_start_rec->p_next_rec; 599 } 600 601 while (p_rec) 602 { 603 p_attr = p_rec->p_first_attr; 604 while (p_attr) 605 { 606 if ((p_attr->attr_id == ATTR_ID_SERVICE_CLASS_ID_LIST) 607 && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE)) 608 { 609 for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr; p_sattr = p_sattr->p_next_attr) 610 { 611 if ((SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE) 612 && (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 2) 613 && ( (p_sattr->attr_value.v.u16 == UUID_SERVCLASS_HDP_SINK) || 614 (p_sattr->attr_value.v.u16 == UUID_SERVCLASS_HDP_SOURCE)) ) 615 { 616 return(p_rec); 617 } 618 } 619 break; 620 } 621 622 p_attr = p_attr->p_next_attr; 623 } 624 625 p_rec = p_rec->p_next_rec; 626 } 627 #endif 628 /* If here, no matching UUID found */ 629 630 #if BTA_HL_DEBUG == TRUE 631 APPL_TRACE_DEBUG("bta_hl_find_sink_or_src_srv_class_in_db failed"); 632 #endif 633 634 return(NULL); 635 } 636 #endif /* HL_INCLUDED */ 637
