/****************************************************************************** * * Copyright (C) 2010-2014 Broadcom Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ /****************************************************************************** * * This file contains definitions for some utility functions to help parse * and build NFC Data Exchange Format (NDEF) messages * ******************************************************************************/ #ifndef NDEF_UTILS_H #define NDEF_UTILS_H #include "bt_types.h" #define NDEF_MB_MASK 0x80 /* Message Begin */ #define NDEF_ME_MASK 0x40 /* Message End */ #define NDEF_CF_MASK 0x20 /* Chunk Flag */ #define NDEF_SR_MASK 0x10 /* Short Record */ #define NDEF_IL_MASK 0x08 /* ID Length */ #define NDEF_TNF_MASK 0x07 /* Type Name Format */ /* NDEF Type Name Format */ #define NDEF_TNF_EMPTY 0 /* Empty (type/id/payload len =0) */ #define NDEF_TNF_WKT 1 /* NFC Forum well-known type/RTD */ #define NDEF_TNF_MEDIA 2 /* Media-type as defined in RFC 2046 */ #define NDEF_TNF_URI 3 /* Absolute URI as defined in RFC 3986 */ #define NDEF_TNF_EXT 4 /* NFC Forum external type/RTD */ #define NDEF_TNF_UNKNOWN 5 /* Unknown (type len =0) */ #define NDEF_TNF_UNCHANGED 6 /* Unchanged (type len =0) */ #define NDEF_TNF_RESERVED 7 /* Reserved */ /* Define the status code returned from the Validate, Parse or Build functions */ enum { NDEF_OK, /* 0 - OK */ NDEF_REC_NOT_FOUND, /* 1 - No record matching the find criteria */ NDEF_MSG_TOO_SHORT, /* 2 - Message was too short (< 3 bytes) */ NDEF_MSG_NO_MSG_BEGIN, /* 3 - No 'begin' flag at start of message */ NDEF_MSG_NO_MSG_END, /* 4 - No 'end' flag at end of message */ NDEF_MSG_EXTRA_MSG_BEGIN, /* 5 - 'begin' flag after start of message */ NDEF_MSG_UNEXPECTED_CHUNK, /* 6 - Unexpected chunk found */ NDEF_MSG_INVALID_EMPTY_REC, /* 7 - Empty record with non-zero contents */ NDEF_MSG_INVALID_CHUNK, /* 8 - Invalid chunk found */ NDEF_MSG_LENGTH_MISMATCH, /* 9 - Overall message length doesn't match */ NDEF_MSG_INSUFFICIENT_MEM /* 10 - Insuffiecient memory to add record */ }; typedef UINT8 tNDEF_STATUS; #define HR_REC_TYPE_LEN 2 /* Handover Request Record Type */ #define HS_REC_TYPE_LEN 2 /* Handover Select Record Type */ #define HC_REC_TYPE_LEN 2 /* Handover Carrier recrod Type */ #define CR_REC_TYPE_LEN 2 /* Collision Resolution Record Type */ #define AC_REC_TYPE_LEN 2 /* Alternative Carrier Record Type */ #define ERR_REC_TYPE_LEN 3 /* Error Record Type */ #define BT_OOB_REC_TYPE_LEN 32 /* Bluetooth OOB Data Type */ #define WIFI_WSC_REC_TYPE_LEN 23 /* Wifi WSC Data Type */ #ifdef __cplusplus extern "C" { #endif /* Define prefix for exporting APIs from libraries */ #ifdef NFC_DLL #define EXPORT_NDEF_API __declspec(dllexport) /* Windows DLL export prefix */ #else #define EXPORT_NDEF_API #endif /* Functions to parse a received NDEF Message */ /******************************************************************************* ** ** Function NDEF_MsgValidate ** ** Description This function validates an NDEF message. ** ** Returns TRUE if all OK, or FALSE if the message is invalid. ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgValidate (UINT8 *p_msg, UINT32 msg_len, BOOLEAN b_allow_chunks); /******************************************************************************* ** ** Function NDEF_MsgGetNumRecs ** ** Description This function gets the number of records in the given NDEF ** message. ** ** Returns The record count, or 0 if the message is invalid. ** *******************************************************************************/ EXPORT_NDEF_API extern INT32 NDEF_MsgGetNumRecs (UINT8 *p_msg); /******************************************************************************* ** ** Function NDEF_MsgGetRecLength ** ** Description This function returns length of the current record in the given ** NDEF message. ** ** Returns Length of record ** *******************************************************************************/ EXPORT_NDEF_API extern UINT32 NDEF_MsgGetRecLength (UINT8 *p_cur_rec); /******************************************************************************* ** ** Function NDEF_MsgGetNextRec ** ** Description This function gets a pointer to the next record after the ** current one. ** ** Returns Pointer to the start of the record, or NULL if no more ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_MsgGetNextRec (UINT8 *p_cur_rec); /******************************************************************************* ** ** Function NDEF_MsgGetRecByIndex ** ** Description This function gets a pointer to the record with the given ** index (0-based index) in the given NDEF message. ** ** Returns Pointer to the start of the record, or NULL ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_MsgGetRecByIndex (UINT8 *p_msg, INT32 index); /******************************************************************************* ** ** Function NDEF_MsgGetLastRecInMsg ** ** Description This function gets a pointer to the last record in the ** given NDEF message. ** ** Returns Pointer to the start of the last record, or NULL if some problem ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_MsgGetLastRecInMsg (UINT8 *p_msg); /******************************************************************************* ** ** Function NDEF_MsgGetFirstRecByType ** ** Description This function gets a pointer to the first record with the given ** record type in the given NDEF message. ** ** Returns Pointer to the start of the record, or NULL ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_MsgGetFirstRecByType (UINT8 *p_msg, UINT8 tnf, UINT8 *p_type, UINT8 tlen); /******************************************************************************* ** ** Function NDEF_MsgGetNextRecByType ** ** Description This function gets a pointer to the next record with the given ** record type in the given NDEF message. ** ** Returns Pointer to the start of the record, or NULL ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_MsgGetNextRecByType (UINT8 *p_cur_rec, UINT8 tnf, UINT8 *p_type, UINT8 tlen); /******************************************************************************* ** ** Function NDEF_MsgGetFirstRecById ** ** Description This function gets a pointer to the first record with the given ** record id in the given NDEF message. ** ** Returns Pointer to the start of the record, or NULL ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_MsgGetFirstRecById (UINT8 *p_msg, UINT8 *p_id, UINT8 ilen); /******************************************************************************* ** ** Function NDEF_MsgGetNextRecById ** ** Description This function gets a pointer to the next record with the given ** record id in the given NDEF message. ** ** Returns Pointer to the start of the record, or NULL ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_MsgGetNextRecById (UINT8 *p_cur_rec, UINT8 *p_id, UINT8 ilen); /******************************************************************************* ** ** Function NDEF_RecGetType ** ** Description This function gets a pointer to the record type for the given NDEF record. ** ** Returns Pointer to Type (NULL if none). TNF and len are filled in. ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_RecGetType (UINT8 *p_rec, UINT8 *p_tnf, UINT8 *p_type_len); /******************************************************************************* ** ** Function NDEF_RecGetId ** ** Description This function gets a pointer to the record id for the given NDEF record. ** ** Returns Pointer to Id (NULL if none). ID Len is filled in. ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_RecGetId (UINT8 *p_rec, UINT8 *p_id_len); /******************************************************************************* ** ** Function NDEF_RecGetPayload ** ** Description This function gets a pointer to the payload for the given NDEF record. ** ** Returns a pointer to the payload (NULL if none). Payload len filled in. ** *******************************************************************************/ EXPORT_NDEF_API extern UINT8 *NDEF_RecGetPayload (UINT8 *p_rec, UINT32 *p_payload_len); /* Functions to build an NDEF Message */ /******************************************************************************* ** ** Function NDEF_MsgInit ** ** Description This function initializes an NDEF message. ** ** Returns void ** *p_cur_size is initialized to 0 ** *******************************************************************************/ EXPORT_NDEF_API extern void NDEF_MsgInit (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size); /******************************************************************************* ** ** Function NDEF_MsgAddRec ** ** Description This function adds an NDEF record to the end of an NDEF message. ** ** Returns OK, or error if the record did not fit ** *p_cur_size is updated ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAddRec (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 tnf, UINT8 *p_type, UINT8 type_len, UINT8 *p_id, UINT8 id_len, UINT8 *p_payload, UINT32 payload_len); /******************************************************************************* ** ** Function NDEF_MsgInsertRec ** ** Description This function inserts a record at a specific index into the ** given NDEF message ** ** Returns OK, or error if the record did not fit ** *p_cur_size is updated ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgInsertRec (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, INT32 index, UINT8 tnf, UINT8 *p_type, UINT8 type_len, UINT8 *p_id, UINT8 id_len, UINT8 *p_payload, UINT32 payload_len); /******************************************************************************* ** ** Function NDEF_MsgAppendRec ** ** Description This function adds NDEF records to the end of an NDEF message. ** ** Returns OK, or error if the record did not fit ** *p_cur_size is updated ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAppendRec (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 *p_new_rec, UINT32 new_rec_len); /******************************************************************************* ** ** Function NDEF_MsgAppendPayload ** ** Description This function appends extra payload to a specific record in the ** given NDEF message ** ** Returns OK, or error if the extra payload did not fit ** *p_cur_size is updated ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAppendPayload (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 *p_rec, UINT8 *p_add_pl, UINT32 add_pl_len); /******************************************************************************* ** ** Function NDEF_MsgReplacePayload ** ** Description This function replaces the payload of a specific record in the ** given NDEF message ** ** Returns OK, or error if the new payload did not fit ** *p_cur_size is updated ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgReplacePayload (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 *p_rec, UINT8 *p_new_pl, UINT32 new_pl_len); /******************************************************************************* ** ** Function NDEF_MsgReplaceType ** ** Description This function replaces the type field of a specific record in the ** given NDEF message ** ** Returns OK, or error if the new type field did not fit ** *p_cur_size is updated ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgReplaceType (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 *p_rec, UINT8 *p_new_type, UINT8 new_type_len); /******************************************************************************* ** ** Function NDEF_MsgReplaceId ** ** Description This function replaces the ID field of a specific record in the ** given NDEF message ** ** Returns OK, or error if the new ID field did not fit ** *p_cur_size is updated ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgReplaceId (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 *p_rec, UINT8 *p_new_id, UINT8 new_id_len); /******************************************************************************* ** ** Function NDEF_MsgRemoveRec ** ** Description This function removes the record at the given ** index in the given NDEF message. ** ** Returns OK, or error if the index was invalid ** *p_cur_size is updated ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgRemoveRec (UINT8 *p_msg, UINT32 *p_cur_size, INT32 index); /******************************************************************************* ** ** Function NDEF_MsgCopyAndDechunk ** ** Description This function copies and de-chunks an NDEF message. ** It is assumed that the destination is at least as large ** as the source, since the source may not actually contain ** any chunks. ** ** Returns The output byte count ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgCopyAndDechunk (UINT8 *p_src, UINT32 src_len, UINT8 *p_dest, UINT32 *p_out_len); /******************************************************************************* ** ** Function NDEF_MsgCreateWktHr ** ** Description This function creates Handover Request Record with version. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgCreateWktHr (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 version ); /******************************************************************************* ** ** Function NDEF_MsgCreateWktHs ** ** Description This function creates Handover Select Record with version. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgCreateWktHs (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 version ); /******************************************************************************* ** ** Function NDEF_MsgAddWktHc ** ** Description This function adds Handover Carrier Record. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAddWktHc (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, char *p_id_str, UINT8 ctf, UINT8 carrier_type_len, UINT8 *p_carrier_type, UINT8 carrier_data_len, UINT8 *p_carrier_data); /******************************************************************************* ** ** Function NDEF_MsgAddWktAc ** ** Description This function adds Alternative Carrier Record. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAddWktAc (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 cps, char *p_carrier_data_ref_str, UINT8 aux_data_ref_count, char *p_aux_data_ref_str[]); /******************************************************************************* ** ** Function NDEF_MsgAddWktCr ** ** Description This function adds Collision Resolution Record. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAddWktCr (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT16 random_number ); /******************************************************************************* ** ** Function NDEF_MsgAddWktErr ** ** Description This function adds Error Record. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAddWktErr (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, UINT8 error_reason, UINT32 error_data ); /******************************************************************************* ** ** Function NDEF_MsgAddMediaBtOob ** ** Description This function adds BT OOB Record. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAddMediaBtOob (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, char *p_id_str, BD_ADDR bd_addr); /******************************************************************************* ** ** Function NDEF_MsgAppendMediaBtOobCod ** ** Description This function appends COD EIR data at the end of BT OOB Record. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAppendMediaBtOobCod (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, char *p_id_str, DEV_CLASS cod); /******************************************************************************* ** ** Function NDEF_MsgAppendMediaBtOobName ** ** Description This function appends Bluetooth Local Name EIR data ** at the end of BT OOB Record. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAppendMediaBtOobName (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, char *p_id_str, BOOLEAN is_complete, UINT8 name_len, UINT8 *p_name); /******************************************************************************* ** ** Function NDEF_MsgAppendMediaBtOobHashCRandR ** ** Description This function appends Hash C and Rand R at the end of BT OOB Record. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAppendMediaBtOobHashCRandR (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, char *p_id_str, UINT8 *p_hash_c, UINT8 *p_rand_r); /******************************************************************************* ** ** Function NDEF_MsgAppendMediaBtOobEirData ** ** Description This function appends EIR Data at the end of BT OOB Record. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAppendMediaBtOobEirData (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, char *p_id_str, UINT8 eir_type, UINT8 data_len, UINT8 *p_data); /******************************************************************************* ** ** Function NDEF_MsgAddMediaWifiWsc ** ** Description This function adds Wifi Wsc Record header. ** ** Returns NDEF_OK if all OK ** *******************************************************************************/ EXPORT_NDEF_API extern tNDEF_STATUS NDEF_MsgAddMediaWifiWsc (UINT8 *p_msg, UINT32 max_size, UINT32 *p_cur_size, char *p_id_str, UINT8 *p_payload, UINT32 payload_len); #ifdef __cplusplus } #endif #endif /* NDEF_UTILS_H */