skarg
194 lines
7.8 KiB
C
194 lines
7.8 KiB
C
/*####COPYRIGHTBEGIN####
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-------------------------------------------
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Copyright (C) 2004 Steve Karg
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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The Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA.
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As a special exception, if other files instantiate templates or
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use macros or inline functions from this file, or you compile
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this file and link it with other works to produce a work based
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on this file, this file does not by itself cause the resulting
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work to be covered by the GNU General Public License. However
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the source code for this file must still be made available in
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accordance with section (3) of the GNU General Public License.
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This exception does not invalidate any other reasons why a work
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based on this file might be covered by the GNU General Public
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License.
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-------------------------------------------
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####COPYRIGHTEND####*/
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#ifndef BACDCODE_H
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#define BACDCODE_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include "bacdef.h"
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#include "bacstr.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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// from clause 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int encode_tag(uint8_t * apdu, uint8_t tag_number, bool context_specific,
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uint32_t len_value_type);
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// from clause 20.2.1.3.2 Constructed Data
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// returns the number of apdu bytes consumed
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int encode_opening_tag(uint8_t * apdu, uint8_t tag_number);
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int encode_closing_tag(uint8_t * apdu, uint8_t tag_number);
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int decode_tag_number_and_value(uint8_t * apdu, uint8_t * tag_number,
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uint32_t * value);
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// returns true if the tag is context specific
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bool decode_is_context_specific(uint8_t * apdu);
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// returns true if the tag is an opening tag and matches
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bool decode_is_opening_tag_number(uint8_t * apdu, uint8_t tag_number);
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// returns true if the tag is a closing tag and matches
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bool decode_is_closing_tag_number(uint8_t * apdu, uint8_t tag_number);
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// returns true if the tag is context specific and matches
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bool decode_is_context_tag(uint8_t * apdu, uint8_t tag_number);
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// from clause 20.2.2 Encoding of a Null Value
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int encode_tagged_null(uint8_t * apdu);
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// from clause 20.2.3 Encoding of a Boolean Value
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int encode_tagged_boolean(uint8_t * apdu, bool boolean_value);
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bool decode_boolean(uint32_t len_value);
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int encode_context_boolean(uint8_t * apdu, bool boolean_value);
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bool decode_context_boolean(uint8_t * apdu);
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// from clause 20.2.10 Encoding of a Bit String Value
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// returns the number of apdu bytes consumed
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int decode_bitstring(uint8_t * apdu, uint32_t len_value,
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BACNET_BIT_STRING *bit_string);
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// returns the number of apdu bytes consumed
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int encode_bitstring(uint8_t * apdu, BACNET_BIT_STRING *bit_string);
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int encode_tagged_bitstring(uint8_t * apdu, BACNET_BIT_STRING *bit_string);
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// from clause 20.2.6 Encoding of a Real Number Value
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// and 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int decode_real(uint8_t * apdu, float *real_value);
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int encode_bacnet_real(float value, uint8_t * apdu);
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int encode_tagged_real(uint8_t * apdu, float value);
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// from clause 20.2.14 Encoding of an Object Identifier Value
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// and 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int decode_object_id(uint8_t * apdu, int *object_type, uint32_t *instance);
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int encode_bacnet_object_id(uint8_t * apdu, int object_type, uint32_t instance);
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int encode_context_object_id(uint8_t * apdu, int tag_number,
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int object_type, uint32_t instance);
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int encode_tagged_object_id(uint8_t * apdu, int object_type, uint32_t instance);
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// from clause 20.2.8 Encoding of an Octet String Value
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// and 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int encode_octet_string(uint8_t * apdu,
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BACNET_OCTET_STRING *octet_string);
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int encode_tagged_octet_string(uint8_t * apdu,
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BACNET_OCTET_STRING *octet_string);
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int decode_octet_string(uint8_t * apdu, uint32_t len_value,
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BACNET_OCTET_STRING *octet_string);
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// from clause 20.2.9 Encoding of a Character String Value
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// and 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int encode_bacnet_character_string(uint8_t * apdu,
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BACNET_CHARACTER_STRING *char_string);
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int encode_tagged_character_string(uint8_t * apdu,
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BACNET_CHARACTER_STRING *char_string);
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int decode_character_string(uint8_t * apdu, uint32_t len_value,
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BACNET_CHARACTER_STRING *char_string);
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// from clause 20.2.4 Encoding of an Unsigned Integer Value
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// and 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int encode_bacnet_unsigned(uint8_t * apdu, uint32_t value);
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int encode_context_unsigned(uint8_t * apdu, int tag_number, uint32_t value);
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int encode_tagged_unsigned(uint8_t * apdu, uint32_t value);
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int decode_unsigned(uint8_t * apdu, uint32_t len_value, uint32_t *value);
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// from clause 20.2.5 Encoding of a Signed Integer Value
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// and 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int encode_bacnet_signed(uint8_t * apdu, int32_t value);
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int encode_tagged_signed(uint8_t * apdu, int32_t value);
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int encode_context_signed(uint8_t * apdu, int tag_number, int32_t value);
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int decode_signed(uint8_t * apdu, uint32_t len_value, int32_t *value);
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// from clause 20.2.11 Encoding of an Enumerated Value
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// and 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int decode_enumerated(uint8_t * apdu, uint32_t len_value, int *value);
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int encode_bacnet_enumerated(uint8_t * apdu, int value);
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int encode_tagged_enumerated(uint8_t * apdu, int value);
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int encode_context_enumerated(uint8_t * apdu, int tag_number, int value);
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// from clause 20.2.13 Encoding of a Time Value
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// and 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int encode_bacnet_time(uint8_t * apdu, int hour, int min, int sec,
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int hundredths);
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int encode_tagged_time(uint8_t * apdu, int hour, int min, int sec,
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int hundredths);
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int decode_bacnet_time(uint8_t * apdu, int *hour, int *min, int *sec,
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int *hundredths);
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// BACnet Date
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// year = years since 1900
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// month 1=Jan
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// day = day of month
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// wday 1=Monday...7=Sunday
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// from clause 20.2.12 Encoding of a Date Value
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// and 20.2.1 General Rules for Encoding BACnet Tags
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// returns the number of apdu bytes consumed
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int encode_bacnet_date(uint8_t * apdu, int year, int month, int day,
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int wday);
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int encode_tagged_date(uint8_t * apdu, int year, int month, int day,
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int wday);
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int decode_date(uint8_t * apdu, int *year, int *month, int *day,
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int *wday);
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// two octet unsigned16
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int encode_unsigned16(uint8_t * apdu, uint16_t value);
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int decode_unsigned16(uint8_t * apdu, uint16_t *value);
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// four octet unsigned32
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int encode_unsigned32(uint8_t * apdu, uint32_t value);
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int decode_unsigned32(uint8_t * apdu, uint32_t *value);
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// from clause 20.1.2.4 max-segments-accepted
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// and clause 20.1.2.5 max-APDU-length-accepted
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// returns the encoded octet
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uint8_t encode_max_segs_max_apdu(int max_segs, int max_apdu);
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int decode_max_segs(uint8_t octet);
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int decode_max_apdu(uint8_t octet);
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// returns the number of apdu bytes consumed
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int encode_simple_ack(uint8_t * apdu, uint8_t invoke_id,
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uint8_t service_choice);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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