89 lines
2.5 KiB
Bash
Executable File
89 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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# Script for frowarding SWS 12500 station's destination port 80
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# to your Home Assistant's instance port (8123)
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#
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# Workaround for station's firmware 1.0 bug
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#
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#
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# Script pro přesměrování portu pro stanici SWS12500
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STATION_IP=[_STATION_IP_]
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HA=[_HA_]
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SRC_PORT=[_SRC_PORT_]
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DST_PORT=[_DST_PORT_]
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INSTALL_IPTABLES=0
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APK_MISSING=0
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RED_COLOR='\033[0;31m'
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GREEN_COLOR='\033[0;32m'
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GREEN_YELLOW='\033[1;33m'
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NO_COLOR='\033[0m'
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function info () { echo -e "${GREEN_COLOR}INFO: $1${NO_COLOR}";}
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function warn () { echo -e "${GREEN_YELLOW}WARN: $1${NO_COLOR}";}
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function error () { echo -e "${RED_COLOR}ERROR: $1${NO_COLOR}"; if [ "$2" != "false" ]; then exit 1;fi; }
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function check () {
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echo -n "Checking dependencies: '$1' ... "
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if [ -z "$(command -v "$1")" ]; then
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error "not installed" $2
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return 1
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fi
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info "OK."
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return 0
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}
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echo
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echo "**************************************************************"
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echo "* *"
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echo -e "* ${GREEN_YELLOW}Running iptables forward for port $SRC_PORT -> $DST_PORT ${NO_COLOR} *"
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echo "* *"
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echo "**************************************************************"
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echo
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# Check for dependencies
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check "iptables" false
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INSTALL_IPTABLES=$?
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check "apk" false
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APK_MISSING=$?
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if [ $APK_MISSING -eq 1 ] && [ $INSTALL_IPTABLES -eq 1 ]; then
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error "Could not install and run iptables.\n'apk' installer is missing and 'iptables' are not installed.\n"
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fi
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if [ $INSTALL_IPTABLES -eq 1 ] && [ $APK_MISSING -eq 0 ]; then
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declare -a RUNINSTALL=(apk add iptables)
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echo -n "Installing 'iptables' ... ${RUNINSTALL[@]} ... "
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${RUNINSTALL[@]}
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EXIT_STATUS=$?
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if [ $EXIT_STATUS -ne 0 ]; then
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warn "apk error code: $EXIT_STATUS"
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error "Installation of iptables failed!"
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else
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info "'iptables' installed successfully."
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fi
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fi
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declare -a RULE=(PREROUTING -t nat -s $STATION_IP -d $HA -p tcp -m tcp --dport $SRC_PORT -j REDIRECT --to-ports $DST_PORT)
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echo -n "Chceking for existing rule in iptables ... "
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$(iptables -C ${RULE[@]} 2>/dev/null)
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if [ $? -eq 0 ]; then
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warn "Rule is already present in PREROUTING chain."
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else
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echo -n "Inserting iptables rule to PREROUTING chain ... "
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$(iptables -I ${RULE[@]})
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fi
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EXIT_STATUS=$?
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if [ $EXIT_STATUS -ne 0 ]; then
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warn "iptables error code: ${EXIT_STATUS} "
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error "Rule could not be added!"
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fi
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info "iptables are set to forward port $SRC_PORT -> $DST_PORT for station's IP: $STATION_IP" |