skarg
193 lines
6.1 KiB
C
193 lines
6.1 KiB
C
/*####COPYRIGHTBEGIN####
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-------------------------------------------
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Copyright (C) 2007 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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/** @file datalink.c Optional run-time assignment of datalink transport */
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#include "datalink.h"
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#if defined(BACDL_ALL) || defined FOR_DOXYGEN
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#include "ethernet.h"
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#include "bip.h"
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#include "bip6.h"
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#include "bvlc.h"
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#include "arcnet.h"
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#include "dlmstp.h"
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#include <string.h>
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/* Function pointers - point to your datalink */
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/** Function template to Initialize the DataLink services at the given interface.
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* @ingroup DLTemplates
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*
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* @note For Linux, ifname is eth0, ath0, arc0, ttyS0, and others.
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For Windows, ifname is the COM port or dotted ip address of the interface.
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* @param ifname [in] The named interface to use for the network layer.
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* @return True if the interface is successfully initialized,
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* else False if the initialization fails.
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*/
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bool(*datalink_init) (char *ifname);
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/** Function template to send a packet via the DataLink.
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* @ingroup DLTemplates
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*
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* @param dest [in] Destination address.
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* @param npdu_data [in] The NPDU header (Network) information.
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* @param pdu [in] Buffer of data to be sent - may be null.
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* @param pdu_len [in] Number of bytes in the pdu buffer.
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* @return Number of bytes sent on success, negative number on failure.
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*/
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int (
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*datalink_send_pdu) (
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BACNET_ADDRESS * dest,
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BACNET_NPDU_DATA * npdu_data,
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uint8_t * pdu,
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unsigned pdu_len);
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uint16_t(*datalink_receive) (BACNET_ADDRESS * src, uint8_t * pdu,
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uint16_t max_pdu, unsigned timeout);
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/** Function template to close the DataLink services and perform any cleanup.
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* @ingroup DLTemplates
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*/
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void (
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*datalink_cleanup) (
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void);
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void (
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*datalink_get_broadcast_address) (
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BACNET_ADDRESS * dest);
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void (
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*datalink_get_my_address) (
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BACNET_ADDRESS * my_address);
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void datalink_set(
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char *datalink_string)
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{
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if (strcasecmp("bip", datalink_string) == 0) {
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datalink_init = bip_init;
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datalink_send_pdu = bip_send_pdu;
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datalink_receive = bip_receive;
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datalink_cleanup = bip_cleanup;
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datalink_get_broadcast_address = bip_get_broadcast_address;
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datalink_get_my_address = bip_get_my_address;
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} else if (strcasecmp("bvlc", datalink_string) == 0) {
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datalink_init = bip_init;
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datalink_send_pdu = bvlc_send_pdu;
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datalink_receive = bvlc_receive;
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datalink_cleanup = bip_cleanup;
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datalink_get_broadcast_address = bip_get_broadcast_address;
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datalink_get_my_address = bip_get_my_address;
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} else if (strcasecmp("bip6", datalink_string) == 0) {
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datalink_init = bip6_init;
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datalink_send_pdu = bip6_send_pdu;
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datalink_receive = bip6_receive;
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datalink_cleanup = bip6_cleanup;
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datalink_get_broadcast_address = bip6_get_broadcast_address;
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datalink_get_my_address = bip6_get_my_address;
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} else if (strcasecmp("bvlc6", datalink_string) == 0) {
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datalink_init = bip6_init;
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datalink_send_pdu = bvlc6_send_pdu;
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datalink_receive = bvlc6_receive;
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datalink_cleanup = bip6_cleanup;
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datalink_get_broadcast_address = bip6_get_broadcast_address;
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datalink_get_my_address = bip6_get_my_address;
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} else if (strcasecmp("ethernet", datalink_string) == 0) {
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datalink_init = ethernet_init;
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datalink_send_pdu = ethernet_send_pdu;
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datalink_receive = ethernet_receive;
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datalink_cleanup = ethernet_cleanup;
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datalink_get_broadcast_address = ethernet_get_broadcast_address;
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datalink_get_my_address = ethernet_get_my_address;
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} else if (strcasecmp("arcnet", datalink_string) == 0) {
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datalink_init = arcnet_init;
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datalink_send_pdu = arcnet_send_pdu;
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datalink_receive = arcnet_receive;
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datalink_cleanup = arcnet_cleanup;
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datalink_get_broadcast_address = arcnet_get_broadcast_address;
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datalink_get_my_address = arcnet_get_my_address;
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} else if (strcasecmp("mstp", datalink_string) == 0) {
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datalink_init = dlmstp_init;
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datalink_send_pdu = dlmstp_send_pdu;
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datalink_receive = dlmstp_receive;
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datalink_cleanup = dlmstp_cleanup;
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datalink_get_broadcast_address = dlmstp_get_broadcast_address;
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datalink_get_my_address = dlmstp_get_my_address;
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}
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}
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#endif
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#if defined(BACDL_NONE)
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int datalink_send_pdu(
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BACNET_ADDRESS * dest,
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BACNET_NPDU_DATA * npdu_data,
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uint8_t * pdu,
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unsigned pdu_len)
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{
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return 0;
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}
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uint16_t datalink_receive(
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BACNET_ADDRESS * src,
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uint8_t * pdu,
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uint16_t max_pdu,
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unsigned timeout)
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{
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return 0;
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}
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void datalink_cleanup(
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void)
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{
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}
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void datalink_get_broadcast_address(
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BACNET_ADDRESS * dest)
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{
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}
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void datalink_get_my_address(
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BACNET_ADDRESS * my_address)
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{
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}
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void datalink_set_interface(
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char *ifname)
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{
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}
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void datalink_set(
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char *datalink_string)
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{
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}
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#endif
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