Kari Argillander
369da70f2a
* format: Strip trailing whitespaces
We want to get rid of trailing whitespaces completly as they make just git
noice. Much better to start using automated tools to get rid of them once and
not getting them back again. This way git history will be cleaner and review
easier.
Commit was generated with:
pre-commit run --all-files trailing-whitespace
* format: Files should have exactly one new line end of them
It is good practice that every file has one new line. It is not now days so
mandatory but it also is not nice if file has lot of newlines end of it. We will
use pre-commit which takes automatically care about this so let's fix all.
Commit was generated with:
pre-commit run --all-files end-of-file-fixer
* format: Convert tabs to spaces
Project mostly use spaces over tabs. When mixing tabs and spaces this usually
makes formatting issues and also when changing those in commits it will make lot
of git noise. We will force spaces most of the time and use pre-commit to fix.
Commit was generated with:
pre-commit run --all-files remove-tabs
---------
Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/**
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* @file
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* @brief The BACnet/IPv4 datalink tasks for handling the device specific
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* data link layer
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* @author Steve Karg <skarg@users.sourceforge.net>
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* @date April 2024
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* @copyright SPDX-License-Identifier: MIT
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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/* BACnet definitions */
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#include "bacnet/bacdef.h"
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/* BACnet library API */
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#include "bacnet/basic/object/netport.h"
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#include "bacnet/basic/bbmd/h_bbmd.h"
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#include "bacnet/datalink/bip.h"
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#include "bacnet/datalink/bvlc.h"
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#include "bacnet/datalink/datalink.h"
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/* me! */
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#include "bacnet_basic/bacnet_port_ipv4.h"
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#if defined(BACDL_BIP)
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/* timer used to renew Foreign Device Registration */
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static uint16_t BBMD_Timer_Seconds;
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static uint16_t BBMD_TTL_Seconds = 60000;
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static BACNET_IP_ADDRESS BBMD_Address;
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/**
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* @brief Initialize the datalink network port
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* @param ttl_seconds [in] The time-to-live in seconds for the Foreign Device Registration
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* @param bbmd_address [in] The address of the BBMD
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*/
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void bacnet_port_ipv4_foreign_device_init(
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const uint16_t ttl_seconds,
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const BACNET_IP_ADDRESS *bbmd_address)
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{
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BBMD_TTL_Seconds = ttl_seconds;
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if (bbmd_address) {
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memcpy(&BBMD_Address, bbmd_address, sizeof(BACNET_IP_ADDRESS));
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}
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}
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/**
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* @brief Renew the Foreign Device Registration
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*/
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void bacnet_port_ipv4_task(uint16_t elapsed_seconds)
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{
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if (BBMD_Timer_Seconds) {
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if (BBMD_Timer_Seconds <= elapsed_seconds) {
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BBMD_Timer_Seconds = 0;
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} else {
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BBMD_Timer_Seconds -= elapsed_seconds;
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}
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if (BBMD_Timer_Seconds == 0) {
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if (BBMD_Address.port > 0) {
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(void)bvlc_register_with_bbmd(&BBMD_Address,
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BBMD_TTL_Seconds);
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}
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BBMD_Timer_Seconds = (uint16_t)BBMD_TTL_Seconds;
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}
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}
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}
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/**
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* Initialize the network port object.
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*/
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bool bacnet_port_ipv4_init(void)
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{
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const uint32_t instance = 1;
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BACNET_IP_ADDRESS addr = { 0 };
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uint8_t prefix = 0;
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if (!bip_init(NULL)) {
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return false;
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}
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Network_Port_Object_Instance_Number_Set(0, instance);
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Network_Port_Name_Set(instance, "BACnet/IP Port");
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Network_Port_Type_Set(instance, PORT_TYPE_BIP);
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bip_get_addr(&addr);
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prefix = bip_get_subnet_prefix();
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Network_Port_BIP_Port_Set(instance, addr.port);
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Network_Port_IP_Address_Set(instance, addr.address[0], addr.address[1],
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addr.address[2], addr.address[3]);
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Network_Port_IP_Subnet_Prefix_Set(instance, prefix);
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Network_Port_Link_Speed_Set(instance, 0.0);
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/* common NP data */
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Network_Port_Reliability_Set(instance, RELIABILITY_NO_FAULT_DETECTED);
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Network_Port_Out_Of_Service_Set(instance, false);
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Network_Port_Quality_Set(instance, PORT_QUALITY_UNKNOWN);
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Network_Port_APDU_Length_Set(instance, MAX_APDU);
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Network_Port_Network_Number_Set(instance, 0);
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/* last thing - clear pending changes - we don't want to set these
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since they are already set */
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Network_Port_Changes_Pending_Set(instance, false);
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return true;
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}
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#endif
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