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132 lines
5.2 KiB
132 lines
5.2 KiB
3 years ago
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#!/bin/bash
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##################################################################################
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# Send an APRS message consrructed from the given parameters. #
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# #
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# (C)2021 M.T. Konstapel https://meezenest.nl/mees #
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# #
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# This file is part of PE1RXF-APRS-server. #
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# #
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# NOTE: the ax25 utility 'beacon' has a bug: the first few times it is called #
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# the send string ends with some random characters. After these first few #
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# times it all comes good and the utility works fine. #
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# #
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# PE1RXF-APRS-server is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# PE1RXF-APRS-server 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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# #
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# You should have received a copy of the GNU General Public License #
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# along with PE1RXF-APRS-server If not, see <https://www.gnu.org/licenses/>. #
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# #
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##################################################################################
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source /home/marcel/ham/aprs_utils/config.shlib; # load the config library functions
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ConfigFile=/home/marcel/ham/aprs_utils/pe1rxf-aprs-server.cfg
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# Directory where APRS messages are stored
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APRS_RECEIVED_MESSAGES_DIR=/home/marcel/ham/aprs_utils/aprs_log/
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MESSAGE_FILE=aprs_send_messages.log
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############################################################
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# Help #
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############################################################
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Help()
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{
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# Display Help
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echo "Send APRS message."
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echo
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echo "Syntax: set_beacon.sh [-i <interface>|-c <call>|-p <path>|-m <message>]"
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echo "Options:"
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echo "-i AX.25 interface (ax0 or ax1)"
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echo "-c Destination call"
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echo "-p Path: 0=none, WIDE2-1, WIDE2-2, WIDE3-3 or call of digipeater"
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echo "-m Message to send."
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echo
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}
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############################################################
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############################################################
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# Main program #
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############################################################
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############################################################
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# Set variables
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Interface="0"
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Call="0"
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Path="0"
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Message=""
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############################################################
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# Process the input options. #
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############################################################
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# Get the options
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while getopts i:c:p:m: flag; do
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case "${flag}" in
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i) # Interface
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Interface=${OPTARG};;
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c) # Destination Call
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Call=${OPTARG};;
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p) # Path
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Path=${OPTARG};;
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m) # Message
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Message=${OPTARG};;
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\?) # Invalid option
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echo "Syntax error!"
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Help
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exit;;
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esac
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done
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CURRENT_DATE_TIME=$(date +"%Y-%m-%d %H:%M:%S")
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if [ "$Interface" == "ax0" ]; then
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# Log message
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echo "$CURRENT_DATE_TIME,ax0,$Call,APRX29,$Message" >> $APRS_RECEIVED_MESSAGES_DIR$MESSAGE_FILE
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# if call is less than 9 characters, add spaces at the end (according to the APRS protocol)
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printf -v Call %-9.9s "$Call"
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if [ "$Path" == "0" ]; then
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APRS_FRAME="PE1RXF-1>APRX29::$Call:$Message"
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else
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APRS_FRAME="PE1RXF-1>APRX29,$Path::$Call:$Message"
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fi
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AX0_APRS_TRANSMIT_DIR="$(config_get ax0_transmit_directory $ConfigFile)"
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echo "$APRS_FRAME" > "$AX0_APRS_TRANSMIT_DIR"message.msg
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#echo "$APRS_FRAME $AX0_APRS_TRANSMIT_DIR"
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else
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# Log message
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echo "$CURRENT_DATE_TIME,ax1,$Call,APRX29,$Message" >> $APRS_RECEIVED_MESSAGES_DIR$MESSAGE_FILE
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# if call is less than 9 characters, add spaces at the end (according to the APRS protocol)
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printf -v Call %-9.9s "$Call"
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if [ "$Path" == "0" ]; then
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APRS_FRAME="PE1RXF-2>APRX29::$Call:$Message"
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args[0]=-d
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args[1]="APRX29"
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args[2]=-s
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args[3]=ax1
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args[4]=":$Call:$Message"
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else
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APRS_FRAME="PE1RXF-2>APRX29,$Path::$Call:$Message"
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args[0]=-d
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args[1]="APRX29 $Path"
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args[2]=-s
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args[3]=ax1
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args[4]=":$Call:$Message"
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fi
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#echo "$APRS_FRAME"
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#"$APRS_CMD" > tmp.tmp
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/usr/sbin/beacon "${args[@]}"
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fi
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