mirror of
https://github.com/stargieg/bacnet-stack
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79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/**
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* @file
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* @author Andriy Sukhynyuk, Vasyl Tkhir, Andriy Ivasiv
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* @date 2012
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* @brief Datalink IP module
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*
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* @section LICENSE
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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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*/
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#ifndef UDPMODULE_H
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#define UDPMODULE_H
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#include <stdint.h>
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#include <stdbool.h>
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#include "portthread.h"
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#include "bip.h"
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#define MAX_BIP_APDU 1476
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#define MAX_BIP_PDU (MAX_NPDU + MAX_BIP_APDU)
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#define MAX_BIP_MPDU (MAX_HEADER + MAX_BIP_PDU)
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/* Yes, we know this is longer than an Ethernet Frame,
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a UDP payload and an IPv6 packet.
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Grandfathered in from BACnet Ethernet days,
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and we can rely on the lower layers of the
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Ethernet stack to fragment/reassemble the BACnet MPDUs */
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typedef struct ip_data {
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int socket;
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uint16_t port;
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struct in_addr local_addr;
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struct in_addr broadcast_addr;
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uint8_t *buff;
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uint16_t max_buff;
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} IP_DATA;
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void *dl_ip_thread(
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void *pArgs);
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bool dl_ip_init(
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ROUTER_PORT * port,
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IP_DATA * data);
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int dl_ip_send(
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IP_DATA * data,
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BACNET_ADDRESS * dest,
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uint8_t * pdu,
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unsigned pdu_len);
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int dl_ip_recv(
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IP_DATA * data,
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MSG_DATA ** msg, /* on recieve fill up message */
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BACNET_ADDRESS * src,
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unsigned timeout);
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void dl_ip_cleanup(
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IP_DATA * data);
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#endif /* end of UDPMODULE_H */
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