skarg
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/*####COPYRIGHTBEGIN####
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-------------------------------------------
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Copyright (C) 2005 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 NPDU_H
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#define NPDU_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <assert.h>
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#include "bacdef.h"
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#include "bacenum.h"
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// an NPDU structure keeps the parameter stack to a minimum
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typedef struct bacnet_npdu_data_t
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{
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uint8_t protocol_version;
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// parts of the control octet:
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bool data_expecting_reply; // true for confirmed messages
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bool network_layer_message; // false if APDU
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BACNET_MESSAGE_PRIORITY priority;
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// optional network message info
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BACNET_NETWORK_MESSAGE_TYPE network_message_type; // optional
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uint16_t vendor_id; // optional, if net message type is > 0x80
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uint8_t hop_count;
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} BACNET_NPDU_DATA;
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uint8_t npdu_encode_max_seg_max_apdu(int max_segs, int max_apdu);
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int npdu_encode_raw(
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uint8_t *npdu,
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BACNET_ADDRESS *dest,
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BACNET_ADDRESS *src,
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BACNET_NPDU_DATA *npdu_data);
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// encode the NPDU portion of the packet for an APDU
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int npdu_encode_apdu(
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uint8_t *npdu,
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BACNET_ADDRESS *dest,
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BACNET_ADDRESS *src,
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bool data_expecting_reply, // true for confirmed messages
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BACNET_MESSAGE_PRIORITY priority);
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int npdu_decode(
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uint8_t *npdu,
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BACNET_ADDRESS *dest,
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BACNET_ADDRESS *src,
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BACNET_NPDU_DATA *npdu_data);
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void npdu_handler(
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BACNET_ADDRESS *src, // source address
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uint8_t *pdu, // PDU data
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uint16_t pdu_len); // length PDU
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#endif
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