mirror of
https://github.com/stargieg/bacnet-stack
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119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2012 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*********************************************************************/
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#ifndef BVLC_H
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#define BVLC_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <time.h>
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#include "bacdef.h"
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#include "npdu.h"
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struct sockaddr_in; /* Defined elsewhere, needed here. */
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#if defined(BBMD_ENABLED) && BBMD_ENABLED
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void bvlc_maintenance_timer(
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time_t seconds);
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#else
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#define bvlc_maintenance_timer(x)
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#endif
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uint16_t bvlc_receive(
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BACNET_ADDRESS * src, /* returns the source address */
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uint8_t * npdu, /* returns the NPDU */
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uint16_t max_npdu, /* amount of space available in the NPDU */
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unsigned timeout); /* number of milliseconds to wait for a packet */
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int bvlc_send_pdu(
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BACNET_ADDRESS * dest, /* destination address */
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BACNET_NPDU_DATA * npdu_data, /* network information */
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uint8_t * pdu, /* any data to be sent - may be null */
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unsigned pdu_len);
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int bvlc_send_mpdu(
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struct sockaddr_in *dest,
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uint8_t * mtu,
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uint16_t mtu_len);
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#if defined(BBMD_CLIENT_ENABLED) && BBMD_CLIENT_ENABLED
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int bvlc_encode_write_bdt_init(
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uint8_t * pdu,
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unsigned entries);
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int bvlc_encode_read_fdt(
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uint8_t * pdu);
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int bvlc_encode_delete_fdt_entry(
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uint8_t * pdu,
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uint32_t address, /* in network byte order */
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uint16_t port); /* in network byte order */
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int bvlc_encode_original_unicast_npdu(
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uint8_t * pdu,
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uint8_t * npdu,
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unsigned npdu_length);
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int bvlc_encode_original_broadcast_npdu(
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uint8_t * pdu,
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uint8_t * npdu,
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unsigned npdu_length);
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#endif
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int bvlc_encode_read_bdt(
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uint8_t * pdu);
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int bvlc_bbmd_read_bdt(
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uint32_t bbmd_address,
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uint16_t bbmd_port);
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/* registers with a bbmd as a foreign device */
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int bvlc_register_with_bbmd(
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uint32_t bbmd_address, /* in network byte order */
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uint16_t bbmd_port, /* in network byte order */
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uint16_t time_to_live_seconds);
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/* Note any BVLC_RESULT code, or NAK the BVLL message in the unsupported cases. */
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int bvlc_for_non_bbmd(
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struct sockaddr_in *sout,
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uint8_t * npdu,
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uint16_t received_bytes);
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/* Returns the last BVLL Result we received, either as the result of a BBMD
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* request we sent, or (if not a BBMD or Client), from trying to register
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* as a foreign device. */
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BACNET_BVLC_RESULT bvlc_get_last_result(
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void);
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/* Returns the current BVLL Function Code we are processing.
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* We have to store this higher layer code for when the lower layers
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* need to know what it is, especially to differentiate between
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* BVLC_ORIGINAL_UNICAST_NPDU and BVLC_ORIGINAL_BROADCAST_NPDU. */
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BACNET_BVLC_FUNCTION bvlc_get_function_code(
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void);
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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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