1/* 2 * 3 * BlueZ - Bluetooth protocol stack for Linux 4 * 5 * Copyright (C) 2001-2002 Nokia Corporation 6 * Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com> 7 * Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org> 8 * Copyright (C) 2002-2003 Stephen Crane <steve.crane@rococosoft.com> 9 * 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 24 * 25 */ 26 27#ifndef __SDP_LIB_H 28#define __SDP_LIB_H 29 30#include <sys/socket.h> 31#include <bluetooth/bluetooth.h> 32#include <bluetooth/hci.h> 33 34#ifdef __cplusplus 35extern "C" { 36#endif 37 38/* 39 * SDP lists 40 */ 41typedef void(*sdp_list_func_t)(void *, void *); 42typedef void(*sdp_free_func_t)(void *); 43typedef int (*sdp_comp_func_t)(const void *, const void *); 44 45sdp_list_t *sdp_list_append(sdp_list_t *list, void *d); 46sdp_list_t *sdp_list_remove(sdp_list_t *list, void *d); 47sdp_list_t *sdp_list_insert_sorted(sdp_list_t *list, void *data, sdp_comp_func_t f); 48void sdp_list_free(sdp_list_t *list, sdp_free_func_t f); 49 50static inline int sdp_list_len(const sdp_list_t *list) 51{ 52 int n = 0; 53 for (; list; list = list->next) 54 n++; 55 return n; 56} 57 58static inline sdp_list_t *sdp_list_find(sdp_list_t *list, void *u, sdp_comp_func_t f) 59{ 60 for (; list; list = list->next) 61 if (f(list->data, u) == 0) 62 return list; 63 return NULL; 64} 65 66static inline void sdp_list_foreach(sdp_list_t *list, sdp_list_func_t f, void *u) 67{ 68 for (; list; list = list->next) 69 f(list->data, u); 70} 71 72/* 73 * Values of the flags parameter to sdp_record_register 74 */ 75#define SDP_RECORD_PERSIST 0x01 76#define SDP_DEVICE_RECORD 0x02 77 78/* 79 * Values of the flags parameter to sdp_connect 80 */ 81#define SDP_RETRY_IF_BUSY 0x01 82#define SDP_WAIT_ON_CLOSE 0x02 83#define SDP_NON_BLOCKING 0x04 84 85/* 86 * a session with an SDP server 87 */ 88typedef struct { 89 int sock; 90 int state; 91 int local; 92 int flags; 93 uint16_t tid; // Current transaction ID 94 void *priv; 95} sdp_session_t; 96 97typedef enum { 98 /* 99 * Attributes are specified as individual elements 100 */ 101 SDP_ATTR_REQ_INDIVIDUAL = 1, 102 /* 103 * Attributes are specified as a range 104 */ 105 SDP_ATTR_REQ_RANGE 106} sdp_attrreq_type_t; 107 108/* 109 * When the pdu_id(type) is a sdp error response, check the status value 110 * to figure out the error reason. For status values 0x0001-0x0006 check 111 * Bluetooth SPEC. If the status is 0xffff, call sdp_get_error function 112 * to get the real reason: 113 * - wrong transaction ID(EPROTO) 114 * - wrong PDU id or(EPROTO) 115 * - I/O error 116 */ 117typedef void sdp_callback_t(uint8_t type, uint16_t status, uint8_t *rsp, size_t size, void *udata); 118 119/* 120 * create an L2CAP connection to a Bluetooth device 121 * 122 * INPUT: 123 * 124 * bdaddr_t *src: 125 * Address of the local device to use to make the connection 126 * (or BDADDR_ANY) 127 * 128 * bdaddr_t *dst: 129 * Address of the SDP server device 130 */ 131sdp_session_t *sdp_connect(const bdaddr_t *src, const bdaddr_t *dst, uint32_t flags); 132int sdp_close(sdp_session_t *session); 133int sdp_get_socket(const sdp_session_t *session); 134 135/* 136 * SDP transaction: functions for asynchronous search. 137 */ 138sdp_session_t *sdp_create(int sk, uint32_t flags); 139int sdp_get_error(sdp_session_t *session); 140int sdp_process(sdp_session_t *session); 141int sdp_set_notify(sdp_session_t *session, sdp_callback_t *func, void *udata); 142 143int sdp_service_search_async(sdp_session_t *session, const sdp_list_t *search, uint16_t max_rec_num); 144int sdp_service_attr_async(sdp_session_t *session, uint32_t handle, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list); 145int sdp_service_search_attr_async(sdp_session_t *session, const sdp_list_t *search, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list); 146 147uint16_t sdp_gen_tid(sdp_session_t *session); 148 149/* 150 * find all devices in the piconet 151 */ 152int sdp_general_inquiry(inquiry_info *ii, int dev_num, int duration, uint8_t *found); 153 154/* flexible extraction of basic attributes - Jean II */ 155int sdp_get_int_attr(const sdp_record_t *rec, uint16_t attr, int *value); 156int sdp_get_string_attr(const sdp_record_t *rec, uint16_t attr, char *value, int valuelen); 157 158/* 159 * Basic sdp data functions 160 */ 161sdp_data_t *sdp_data_alloc(uint8_t dtd, const void *value); 162sdp_data_t *sdp_data_alloc_with_length(uint8_t dtd, const void *value, uint32_t length); 163void sdp_data_free(sdp_data_t *data); 164sdp_data_t *sdp_data_get(const sdp_record_t *rec, uint16_t attr_id); 165 166sdp_data_t *sdp_seq_alloc(void **dtds, void **values, int len); 167sdp_data_t *sdp_seq_alloc_with_length(void **dtds, void **values, int *length, int len); 168sdp_data_t *sdp_seq_append(sdp_data_t *seq, sdp_data_t *data); 169 170int sdp_attr_add(sdp_record_t *rec, uint16_t attr, sdp_data_t *data); 171void sdp_attr_remove(sdp_record_t *rec, uint16_t attr); 172void sdp_attr_replace(sdp_record_t *rec, uint16_t attr, sdp_data_t *data); 173int sdp_set_uuidseq_attr(sdp_record_t *rec, uint16_t attr, sdp_list_t *seq); 174int sdp_get_uuidseq_attr(const sdp_record_t *rec, uint16_t attr, sdp_list_t **seqp); 175 176/* 177 * NOTE that none of the functions below will update the SDP server, 178 * unless the {register, update}sdp_record_t() function is invoked. 179 * All functions which return an integer value, return 0 on success 180 * or -1 on failure. 181 */ 182 183/* 184 * Create an attribute and add it to the service record's attribute list. 185 * This consists of the data type descriptor of the attribute, 186 * the value of the attribute and the attribute identifier. 187 */ 188int sdp_attr_add_new(sdp_record_t *rec, uint16_t attr, uint8_t dtd, const void *p); 189 190/* 191 * Set the information attributes of the service record. 192 * The set of attributes comprises service name, description 193 * and provider name 194 */ 195void sdp_set_info_attr(sdp_record_t *rec, const char *name, const char *prov, const char *desc); 196 197/* 198 * Set the ServiceClassID attribute to the sequence specified by seq. 199 * Note that the identifiers need to be in sorted order from the most 200 * specific to the most generic service class that this service 201 * conforms to. 202 */ 203static inline int sdp_set_service_classes(sdp_record_t *rec, sdp_list_t *seq) 204{ 205 return sdp_set_uuidseq_attr(rec, SDP_ATTR_SVCLASS_ID_LIST, seq); 206} 207 208/* 209 * Get the service classes to which the service conforms. 210 * 211 * When set, the list contains elements of ServiceClassIdentifer(uint16_t) 212 * ordered from most specific to most generic 213 */ 214static inline int sdp_get_service_classes(const sdp_record_t *rec, sdp_list_t **seqp) 215{ 216 return sdp_get_uuidseq_attr(rec, SDP_ATTR_SVCLASS_ID_LIST, seqp); 217} 218 219/* 220 * Set the BrowseGroupList attribute to the list specified by seq. 221 * 222 * A service can belong to one or more service groups 223 * and the list comprises such group identifiers (UUIDs) 224 */ 225static inline int sdp_set_browse_groups(sdp_record_t *rec, sdp_list_t *seq) 226{ 227 return sdp_set_uuidseq_attr(rec, SDP_ATTR_BROWSE_GRP_LIST, seq); 228} 229 230/* 231 * Set the access protocols of the record to those specified in proto 232 */ 233int sdp_set_access_protos(sdp_record_t *rec, const sdp_list_t *proto); 234 235/* 236 * Set the additional access protocols of the record to those specified in proto 237 */ 238int sdp_set_add_access_protos(sdp_record_t *rec, const sdp_list_t *proto); 239 240/* 241 * Get protocol port (i.e. PSM for L2CAP, Channel for RFCOMM) 242 */ 243int sdp_get_proto_port(const sdp_list_t *list, int proto); 244 245/* 246 * Get protocol descriptor. 247 */ 248sdp_data_t *sdp_get_proto_desc(sdp_list_t *list, int proto); 249 250/* 251 * Set the LanguageBase attributes to the values specified in list 252 * (a linked list of sdp_lang_attr_t objects, one for each language in 253 * which user-visible attributes are present). 254 */ 255int sdp_set_lang_attr(sdp_record_t *rec, const sdp_list_t *list); 256 257/* 258 * Set the ServiceInfoTimeToLive attribute of the service. 259 * This is the number of seconds that this record is guaranteed 260 * not to change after being obtained by a client. 261 */ 262static inline int sdp_set_service_ttl(sdp_record_t *rec, uint32_t ttl) 263{ 264 return sdp_attr_add_new(rec, SDP_ATTR_SVCINFO_TTL, SDP_UINT32, &ttl); 265} 266 267/* 268 * Set the ServiceRecordState attribute of a service. This is 269 * guaranteed to change if there is any kind of modification to 270 * the record. 271 */ 272static inline int sdp_set_record_state(sdp_record_t *rec, uint32_t state) 273{ 274 return sdp_attr_add_new(rec, SDP_ATTR_RECORD_STATE, SDP_UINT32, &state); 275} 276 277/* 278 * Set the ServiceID attribute of a service. 279 */ 280void sdp_set_service_id(sdp_record_t *rec, uuid_t uuid); 281 282/* 283 * Set the GroupID attribute of a service 284 */ 285void sdp_set_group_id(sdp_record_t *rec, uuid_t grouuuid); 286 287/* 288 * Set the ServiceAvailability attribute of a service. 289 * 290 * Note that this represents the relative availability 291 * of the service: 0x00 means completely unavailable; 292 * 0xFF means maximum availability. 293 */ 294static inline int sdp_set_service_avail(sdp_record_t *rec, uint8_t avail) 295{ 296 return sdp_attr_add_new(rec, SDP_ATTR_SERVICE_AVAILABILITY, SDP_UINT8, &avail); 297} 298 299/* 300 * Set the profile descriptor list attribute of a record. 301 * 302 * Each element in the list is an object of type 303 * sdp_profile_desc_t which is a definition of the 304 * Bluetooth profile that this service conforms to. 305 */ 306int sdp_set_profile_descs(sdp_record_t *rec, const sdp_list_t *desc); 307 308/* 309 * Set URL attributes of a record. 310 * 311 * ClientExecutableURL: a URL to a client's platform specific (WinCE, 312 * PalmOS) executable code that can be used to access this service. 313 * 314 * DocumentationURL: a URL pointing to service documentation 315 * 316 * IconURL: a URL to an icon that can be used to represent this service. 317 * 318 * Note: pass NULL for any URLs that you don't want to set or remove 319 */ 320void sdp_set_url_attr(sdp_record_t *rec, const char *clientExecURL, const char *docURL, const char *iconURL); 321 322/* 323 * a service search request. 324 * 325 * INPUT : 326 * 327 * sdp_list_t *search 328 * list containing elements of the search 329 * pattern. Each entry in the list is a UUID 330 * of the service to be searched 331 * 332 * uint16_t max_rec_num 333 * An integer specifying the maximum number of 334 * entries that the client can handle in the response. 335 * 336 * OUTPUT : 337 * 338 * int return value 339 * 0 340 * The request completed successfully. This does not 341 * mean the requested services were found 342 * -1 343 * The request completed unsuccessfully 344 * 345 * sdp_list_t *rsp_list 346 * This variable is set on a successful return if there are 347 * non-zero service handles. It is a singly linked list of 348 * service record handles (uint16_t) 349 */ 350int sdp_service_search_req(sdp_session_t *session, const sdp_list_t *search, uint16_t max_rec_num, sdp_list_t **rsp_list); 351 352/* 353 * a service attribute request. 354 * 355 * INPUT : 356 * 357 * uint32_t handle 358 * The handle of the service for which the attribute(s) are 359 * requested 360 * 361 * sdp_attrreq_type_t reqtype 362 * Attribute identifiers are 16 bit unsigned integers specified 363 * in one of 2 ways described below : 364 * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers 365 * They are the actual attribute identifiers in ascending order 366 * 367 * SDP_ATTR_REQ_RANGE - 32bit identifier range 368 * The high-order 16bits is the start of range 369 * the low-order 16bits are the end of range 370 * 0x0000 to 0xFFFF gets all attributes 371 * 372 * sdp_list_t *attrid_list 373 * Singly linked list containing attribute identifiers desired. 374 * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) 375 * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) 376 * 377 * OUTPUT : 378 * int return value 379 * 0 380 * The request completed successfully. This does not 381 * mean the requested services were found 382 * -1 383 * The request completed unsuccessfully due to a timeout 384 */ 385sdp_record_t *sdp_service_attr_req(sdp_session_t *session, uint32_t handle, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list); 386 387/* 388 * This is a service search request combined with the service 389 * attribute request. First a service class match is done and 390 * for matching service, requested attributes are extracted 391 * 392 * INPUT : 393 * 394 * sdp_list_t *search 395 * Singly linked list containing elements of the search 396 * pattern. Each entry in the list is a UUID(DataTypeSDP_UUID16) 397 * of the service to be searched 398 * 399 * AttributeSpecification attrSpec 400 * Attribute identifiers are 16 bit unsigned integers specified 401 * in one of 2 ways described below : 402 * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers 403 * They are the actual attribute identifiers in ascending order 404 * 405 * SDP_ATTR_REQ_RANGE - 32bit identifier range 406 * The high-order 16bits is the start of range 407 * the low-order 16bits are the end of range 408 * 0x0000 to 0xFFFF gets all attributes 409 * 410 * sdp_list_t *attrid_list 411 * Singly linked list containing attribute identifiers desired. 412 * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) 413 * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) 414 * 415 * OUTPUT : 416 * int return value 417 * 0 418 * The request completed successfully. This does not 419 * mean the requested services were found 420 * -1 421 * The request completed unsuccessfully due to a timeout 422 * 423 * sdp_list_t *rsp_list 424 * This variable is set on a successful return to point to 425 * service(s) found. Each element of this list is of type 426 * sdp_record_t *. 427 */ 428int sdp_service_search_attr_req(sdp_session_t *session, const sdp_list_t *search, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list, sdp_list_t **rsp_list); 429 430/* 431 * Allocate/free a service record and its attributes 432 */ 433sdp_record_t *sdp_record_alloc(void); 434void sdp_record_free(sdp_record_t *rec); 435 436/* 437 * Register a service record. 438 * 439 * Note: It is the responsbility of the Service Provider to create the 440 * record first and set its attributes using setXXX() methods. 441 * 442 * The service provider must then call sdp_record_register() to make 443 * the service record visible to SDP clients. This function returns 0 444 * on success or -1 on failure (and sets errno). 445 */ 446int sdp_device_record_register_binary(sdp_session_t *session, bdaddr_t *device, uint8_t *data, uint32_t size, uint8_t flags, uint32_t *handle); 447int sdp_device_record_register(sdp_session_t *session, bdaddr_t *device, sdp_record_t *rec, uint8_t flags); 448int sdp_record_register(sdp_session_t *session, sdp_record_t *rec, uint8_t flags); 449 450/* 451 * Unregister a service record. 452 */ 453int sdp_device_record_unregister_binary(sdp_session_t *session, bdaddr_t *device, uint32_t handle); 454int sdp_device_record_unregister(sdp_session_t *session, bdaddr_t *device, sdp_record_t *rec); 455int sdp_record_unregister(sdp_session_t *session, sdp_record_t *rec); 456 457/* 458 * Update an existing service record. (Calling this function 459 * before a previous call to sdp_record_register() will result 460 * in an error.) 461 */ 462int sdp_device_record_update_binary(sdp_session_t *session, bdaddr_t *device, uint32_t handle, uint8_t *data, uint32_t size); 463int sdp_device_record_update(sdp_session_t *session, bdaddr_t *device, const sdp_record_t *rec); 464int sdp_record_update(sdp_session_t *sess, const sdp_record_t *rec); 465 466void sdp_record_print(const sdp_record_t *rec); 467 468/* 469 * UUID functions 470 */ 471uuid_t *sdp_uuid16_create(uuid_t *uuid, uint16_t data); 472uuid_t *sdp_uuid32_create(uuid_t *uuid, uint32_t data); 473uuid_t *sdp_uuid128_create(uuid_t *uuid, const void *data); 474int sdp_uuid16_cmp(const void *p1, const void *p2); 475int sdp_uuid128_cmp(const void *p1, const void *p2); 476int sdp_uuid_cmp(const void *p1, const void *p2); 477uuid_t *sdp_uuid_to_uuid128(const uuid_t *uuid); 478void sdp_uuid16_to_uuid128(uuid_t *uuid128, const uuid_t *uuid16); 479void sdp_uuid32_to_uuid128(uuid_t *uuid128, const uuid_t *uuid32); 480int sdp_uuid128_to_uuid(uuid_t *uuid); 481int sdp_uuid_to_proto(uuid_t *uuid); 482int sdp_uuid_extract(const uint8_t *buffer, int bufsize, uuid_t *uuid, int *scanned); 483void sdp_uuid_print(const uuid_t *uuid); 484 485#define MAX_LEN_UUID_STR 37 486#define MAX_LEN_PROTOCOL_UUID_STR 8 487#define MAX_LEN_SERVICECLASS_UUID_STR 28 488#define MAX_LEN_PROFILEDESCRIPTOR_UUID_STR 28 489 490int sdp_uuid2strn(const uuid_t *uuid, char *str, size_t n); 491int sdp_proto_uuid2strn(const uuid_t *uuid, char *str, size_t n); 492int sdp_svclass_uuid2strn(const uuid_t *uuid, char *str, size_t n); 493int sdp_profile_uuid2strn(const uuid_t *uuid, char *str, size_t n); 494 495/* 496 * In all the sdp_get_XXX(handle, XXX *xxx) functions below, 497 * the XXX * is set to point to the value, should it exist 498 * and 0 is returned. If the value does not exist, -1 is 499 * returned and errno set to ENODATA. 500 * 501 * In all the methods below, the memory management rules are 502 * simple. Don't free anything! The pointer returned, in the 503 * case of constructed types, is a pointer to the contents 504 * of the sdp_record_t. 505 */ 506 507/* 508 * Get the access protocols from the service record 509 */ 510int sdp_get_access_protos(const sdp_record_t *rec, sdp_list_t **protos); 511 512/* 513 * Get the additional access protocols from the service record 514 */ 515int sdp_get_add_access_protos(const sdp_record_t *rec, sdp_list_t **protos); 516 517/* 518 * Extract the list of browse groups to which the service belongs. 519 * When set, seqp contains elements of GroupID (uint16_t) 520 */ 521static inline int sdp_get_browse_groups(const sdp_record_t *rec, sdp_list_t **seqp) 522{ 523 return sdp_get_uuidseq_attr(rec, SDP_ATTR_BROWSE_GRP_LIST, seqp); 524} 525 526/* 527 * Extract language attribute meta-data of the service record. 528 * For each language in the service record, LangSeq has a struct of type 529 * sdp_lang_attr_t. 530 */ 531int sdp_get_lang_attr(const sdp_record_t *rec, sdp_list_t **langSeq); 532 533/* 534 * Extract the Bluetooth profile descriptor sequence from a record. 535 * Each element in the list is of type sdp_profile_desc_t 536 * which contains the UUID of the profile and its version number 537 * (encoded as major and minor in the high-order 8bits 538 * and low-order 8bits respectively of the uint16_t) 539 */ 540int sdp_get_profile_descs(const sdp_record_t *rec, sdp_list_t **profDesc); 541 542/* 543 * Extract SDP server version numbers 544 * 545 * Note: that this is an attribute of the SDP server only and 546 * contains a list of uint16_t each of which represent the 547 * major and minor SDP version numbers supported by this server 548 */ 549int sdp_get_server_ver(const sdp_record_t *rec, sdp_list_t **pVnumList); 550 551int sdp_get_service_id(const sdp_record_t *rec, uuid_t *uuid); 552int sdp_get_group_id(const sdp_record_t *rec, uuid_t *uuid); 553int sdp_get_record_state(const sdp_record_t *rec, uint32_t *svcRecState); 554int sdp_get_service_avail(const sdp_record_t *rec, uint8_t *svcAvail); 555int sdp_get_service_ttl(const sdp_record_t *rec, uint32_t *svcTTLInfo); 556int sdp_get_database_state(const sdp_record_t *rec, uint32_t *svcDBState); 557 558static inline int sdp_get_service_name(const sdp_record_t *rec, char *str, int len) 559{ 560 return sdp_get_string_attr(rec, SDP_ATTR_SVCNAME_PRIMARY, str, len); 561} 562 563static inline int sdp_get_service_desc(const sdp_record_t *rec, char *str, int len) 564{ 565 return sdp_get_string_attr(rec, SDP_ATTR_SVCDESC_PRIMARY, str, len); 566} 567 568static inline int sdp_get_provider_name(const sdp_record_t *rec, char *str, int len) 569{ 570 return sdp_get_string_attr(rec, SDP_ATTR_PROVNAME_PRIMARY, str, len); 571} 572 573static inline int sdp_get_doc_url(const sdp_record_t *rec, char *str, int len) 574{ 575 return sdp_get_string_attr(rec, SDP_ATTR_DOC_URL, str, len); 576} 577 578static inline int sdp_get_clnt_exec_url(const sdp_record_t *rec, char *str, int len) 579{ 580 return sdp_get_string_attr(rec, SDP_ATTR_CLNT_EXEC_URL, str, len); 581} 582 583static inline int sdp_get_icon_url(const sdp_record_t *rec, char *str, int len) 584{ 585 return sdp_get_string_attr(rec, SDP_ATTR_ICON_URL, str, len); 586} 587 588/* 589 * Set the supported features 590 * sf should be a list of list with each feature data 591 * Returns 0 on success -1 on fail 592 */ 593int sdp_set_supp_feat(sdp_record_t *rec, const sdp_list_t *sf); 594 595/* 596 * Get the supported features 597 * seqp is set to a list of list with each feature data 598 * Returns 0 on success, if an error occurred -1 is returned and errno is set 599 */ 600int sdp_get_supp_feat(const sdp_record_t *rec, sdp_list_t **seqp); 601 602sdp_record_t *sdp_extract_pdu(const uint8_t *pdata, int bufsize, int *scanned); 603sdp_record_t *sdp_copy_record(sdp_record_t *rec); 604 605void sdp_data_print(sdp_data_t *data); 606void sdp_print_service_attr(sdp_list_t *alist); 607 608int sdp_attrid_comp_func(const void *key1, const void *key2); 609 610void sdp_set_seq_len(uint8_t *ptr, uint32_t length); 611void sdp_set_attrid(sdp_buf_t *pdu, uint16_t id); 612void sdp_append_to_pdu(sdp_buf_t *dst, sdp_data_t *d); 613void sdp_append_to_buf(sdp_buf_t *dst, uint8_t *data, uint32_t len); 614 615int sdp_gen_pdu(sdp_buf_t *pdu, sdp_data_t *data); 616int sdp_gen_record_pdu(const sdp_record_t *rec, sdp_buf_t *pdu); 617 618int sdp_extract_seqtype(const uint8_t *buf, int bufsize, uint8_t *dtdp, int *size); 619 620sdp_data_t *sdp_extract_attr(const uint8_t *pdata, int bufsize, int *extractedLength, sdp_record_t *rec); 621 622void sdp_pattern_add_uuid(sdp_record_t *rec, uuid_t *uuid); 623void sdp_pattern_add_uuidseq(sdp_record_t *rec, sdp_list_t *seq); 624 625int sdp_send_req_w4_rsp(sdp_session_t *session, uint8_t *req, uint8_t *rsp, uint32_t reqsize, uint32_t *rspsize); 626 627#ifdef __cplusplus 628} 629#endif 630 631#endif /* __SDP_LIB_H */ 632