tbrennan3
104 lines
3.5 KiB
C
104 lines
3.5 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 "bacdef.h"
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#include "bacenum.h"
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/** Use a hop count default that is generous but reasonable. */
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#define DFLT_HOP_COUNT 15
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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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uint8_t protocol_version;
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/* parts of the control octet: */
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bool data_expecting_reply;
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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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struct router_port_t;
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/** The info[] string has no agreed-upon purpose, hence it is useless.
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* Keeping it short here. This size could be 0-255. */
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#define ROUTER_PORT_INFO_LEN 2
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/** Port Info structure used by Routers for their routing table. */
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typedef struct router_port_t {
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uint16_t dnet; /**< The DNET number that identifies this port. */
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uint8_t id; /**< Either 0 or some ill-defined, meaningless value. */
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uint8_t info[ROUTER_PORT_INFO_LEN]; /**< Info like 'modem dialing string' */
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uint8_t info_len; /**< Length of info[]. */
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struct router_port_t *next; /**< Point to next in linked list */
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} BACNET_ROUTER_PORT;
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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uint8_t npdu_encode_max_seg_max_apdu(
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int max_segs,
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int max_apdu);
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int npdu_encode_pdu(
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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_encode_npdu_data(
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BACNET_NPDU_DATA * npdu,
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bool data_expecting_reply,
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BACNET_MESSAGE_PRIORITY priority);
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void npdu_copy_data(
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BACNET_NPDU_DATA * dest,
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BACNET_NPDU_DATA * src);
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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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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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