Merge pull request #16 from schizza/iptables-script
* added installation script * iptables script translated to english and minor tweakspull/18/head^2
schizza
GitHub
commit
2ee8cc5ed3
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#!/bin/bash
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# Installation script for iptables redirect
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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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ST_PORT=80
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LINK=""
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P_HA=true
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P_ST=true
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declare -a HA_PATHS=(
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"$PWD"
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"$PWD/config"
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"/config"
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"/homeassistant"
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"$HOME/.homeassistant"
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"/usr/share/hassio/homeassistant"
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)
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function info() { echo -e $2 "${GREEN_COLOR}$1${NO_COLOR}"; }
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function warn() { echo -e $2 "${GREEN_YELLOW}$1${NO_COLOR}"; }
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function error() {
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echo -e "${RED_COLOR}$1${NO_COLOR}"
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if [ "$2" != "false" ]; then exit 1; fi
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}
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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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false
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else
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info "OK."
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true
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fi
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}
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function validate_ip() {
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if [[ "$1" =~ ^(([1-9]?[0-9]|1[0-9][0-9]|2([0-4][0-9]|5[0-5]))\.){3}([1-9]?[0-9]|1[0-9][0-9]|2([0-4][0-9]|5[0-5]))$ ]]; then
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true
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else
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false
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fi
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}
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function validate_num() {
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if [[ "$1" =~ ^[0-9]+$ ]]; then true; else false; fi
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}
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function validate_dest() {
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echo "Validating host '$1' ... "
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if ping -c 4; then
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info "OK"
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true
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else
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error "cannot reach" false
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false
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fi
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}
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function cont() {
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while true; do
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warn "$1"
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warn "Do you want to continue? [y/N]: " -n
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read -n 1 YN
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YN=${YN:-N}
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case $YN in
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[Yy]) return 0 ;;
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[Nn]) error "\nExiting." ;;
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*) error "\nInvalid response.\n" false ;;
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esac
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done
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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}Installation for iptables_redirect.sh ${NO_COLOR} *"
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echo "* *"
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echo "**************************************************************"
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echo
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check "wget"
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check "sed"
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check "ping" false && { PING=true; } || { PING=false; }
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echo -n "Trying to find Home Assitant ... "
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for PATH in "${HA_PATHS[@]}"; do
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if [ -n "$HA_PATH" ]; then
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break
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fi
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if [ -f "$PATH/.HA_VERSION" ]; then
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HA_PATH="$PATH"
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fi
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done
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#[ -z $HA_PATH ] && { error "Home Assistant not found!"; }
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info "found at $HA_PATH"
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while true; do
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read -r -p "Your station's IP: " ST_IP
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if validate_ip $ST_IP; then break; fi
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warn "Provide valid IP address."
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done
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while true; do
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read -r -p "Home Assistant's IP: " HA_IP
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if validate_ip $HA_IP; then break; fi
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warn "Provide valid IP address."
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done
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while true; do
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read -r -p "Home Assistant's port [8123]: " HA_PORT
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HA_PORT=${HA_PORT:-8123}
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if validate_num $HA_PORT && ((HA_PORT >= 1 && HA_PORT <= 65535)); then
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break
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fi
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warn "Provide valid port number."
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done
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if $PING; then
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validate_dest $HA_IP || { cont "Home Assistant host is unreachable."; P_HA=false; }
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validate_dest $ST_IP || { cont "Station is unreachable."; P_ST=false; }
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fi
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info "\nYour configuration:"
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info " Home Assistant at: $HA_PATH"
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info " Home Assistant server at: $HA_IP:$HA_PORT" -n
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if $PING; then
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if $P_HA; then info " (ping OK)"; else error " (unreachable)" false; fi
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else
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error " (not tested)" false
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fi
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info " Station at: ${ST_IP}:$ST_PORT" -n
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if $PING; then
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if $P_ST; then info " (ping OK)"; else error " (unreachable)" false; fi
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else
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error " (not tested)" false
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fi
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@ -0,0 +1,89 @@
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#!/bin/bash
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# Script for frowarding SWS 12500 station's destination port 80
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# to your Home Assistant's instance port (8123)
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#
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# Workaround for station's firmware 1.0 bug
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#
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#
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# Script pro přesměrování portu pro stanici SWS12500
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STATION_IP=[_STATION_IP_]
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HA=[_HA_]
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SRC_PORT=[_SRC_PORT_]
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DST_PORT=[_DST_PORT_]
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INSTALL_IPTABLES=0
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APK_MISSING=0
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RED_COLOR='\033[0;31m'
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GREEN_COLOR='\033[0;32m'
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GREEN_YELLOW='\033[1;33m'
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NO_COLOR='\033[0m'
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function info () { echo -e "${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"
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