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ipspec_v3.2.sh
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#!/bin/bash
#
# name : ipspec.sh
# desciption : show IP and LAN Information
# autor : Speefak ( [email protected] )
# licence : (CC) BY-NC-SA
# version : 3.2
#
#------------------------------------------------------------------------------------------------------------
############################################################################################################
####################################### define global variables ########################################
############################################################################################################
#------------------------------------------------------------------------------------------------------------
RequiredPackets="lynx curl geoip-bin nmap speedtest-cli"
SpeedtestTempFile=/tmp/spdt.tmp
MaxScriptExecutionIntervalBandwidth=180
WanIPLogfile=/tmp/wanip.log
WanIPLogDelay=10
# RecordlinesCount=10 # TODO printf only specyfied lines
Codename=$(lsb_release -d | tr -d : | cut -f 2)
Architecture=$(getconf LONG_BIT)
LANDevice=$(ip route | grep default | awk -F "dev " '{print $2}' | cut -d " " -f1 | sort -u)
LANIP=$(ip -br addr show $LANDevice | awk '{print $3}' | cut -d "/" -f1)
GatewayIP=$(ip route | grep default | sed -n 1p | cut -d " " -f3)
GatewayMAC=$(ip neigh | grep -w $GatewayIP 2> /dev/null | head -n1 | tr " " "\n" | grep "[[:alnum:]][[:alnum:]]:")
DNSServerList=$(cat /etc/resolv.conf |grep -i '^nameserver'|cut -d ' ' -f2 | tr "\n" " " | sed 's/ $//'| sed 's/ /,/g' )
DNSServerlistNmCLI="$(nmcli -t --fields NAME con show --active 2>/dev/null)"
FritzboxIP=$GatewayIP
FritzboxPrintNewIPWanIPLogDelay=3
Version=$(cat $(readlink -f $(which $0)) | grep "# version" | head -n1 | awk -F ":" '{print $2}' | sed 's/ //g')
ScriptFile=$(readlink -f $(which $0))
ScriptName=$(basename $ScriptFile)
#------------------------------------------------------------------------------------------------------------
############################################################################################################
########################################### define functions ###########################################
############################################################################################################
#-------------------------------------------------------------------------------------------------------------------------------------------------------
usage() {
clear
printf "\n"
printf " Usage: $(basename $0) <option>\n"
printf "\n"
printf " -h help dialog \n"
printf " -i show script information\n"
printf " -m monocrome output\n"
printf "\n"
printf " default show IP / LAN information ( used devices )\n"
printf " -v show IP / LAN information ( all devices )\n"
printf " -sl scan LAN (nmap) \n"
printf " -bm bandwidth measurement\n"
printf " -lw log wan ip\n"
printf " -fbr renew fritzbox WAN IP\n"
printf " -cfrp check for required packets\n"
# output error message
printf "\n"
printf "\e[0;31m\n $1\e[0m\n"$end
printf "\n"
exit
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
check_input_options () {
# create available options list
InputOptionList=$(cat $ScriptFile | sed -n '/usage()/,/exit/p' | grep " -[[:alpha:]]" | awk '{print $3}' | grep "^\-")
# check for valid input options
for Option in $@ ; do
if [[ -z $(grep -w -- "$Option" <<< "$InputOptionList") ]]; then
InvalidOptionList=$(echo $InvalidOptionList $Option)
fi
done
# print invalid options and exit script_information
if [[ -n $InvalidOptionList ]]; then
usage "invalid option: $InvalidOptionList"
fi
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
load_colorcodes () {
red=$'\e[0;31m'
grn=$'\e[0;32m'
yel=$'\e[0;33m'
blu=$'\e[0;34m'
mag=$'\e[0;35m'
cyn=$'\e[0;36m'
end=$'\e[0m'
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
script_information () {
printf "\n"
printf " Scriptname: $ScriptName\n"
printf " Version: $Version \n"
printf " Location: $(pwd)/$ScriptName\n"
printf " Filesize: $(ls -lh $0 | cut -d " " -f5)\n"
printf "\n"
exit 0
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
progressbar () { # usage : progressbar "MESSAGE" 3 "."
tput civis
echo -ne "$1 "
for i in `seq 1 $2`; do
echo -en "\033[K$3"
sleep 1
done
echo -en "\015"
tput cvvis
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
print_parser () {
if [[ $(grep SeperatorLine <<< $@) ]]; then
printf "+---------------------------------------------------------------------------------------------------+\n"
elif [[ $PrintParser == "info_line" ]]; then
printf "| %-97s | \n" "$1"
elif [[ $PrintParser == "network_information" ]]; then
printf "| %-11s %-4s %-38s %-41s | \n" "$1" "$2" "$3" "$4"
elif [[ $PrintParser == "bandwidth_measurement" ]]; then
printf "| %-11s %-4s %-38s %-41s | \n" "$1" "$2" "$3" "$4"
fi
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
check_for_required_packages () {
InstalledPacketList=$(dpkg -l | grep ii)
for Packet in $RequiredPackets ; do
if [[ -z $(grep -w $Packet <<< $InstalledPacketList) ]]; then
MissingPackets=$(echo $MissingPackets $Packet)
fi
done
# print status message / install dialog
if [[ -n $MissingPackets ]]; then
printf "missing packets: \e[0;31m $MissingPackets\e[0m\n"$(tput sgr0)
read -e -p "install required packets ? (Y/N) " -i "Y" InstallMissingPackets
if [[ $InstallMissingPackets == [Yy] ]]; then
# install software packets
sudo apt update
sudo apt install -y $MissingPackets
if [[ ! $? == 0 ]]; then
exit
fi
else
printf "programm error: \e[0;31m missing packets : $MissingPackets\e[0m\n\n"$(tput sgr0)
exit 1
fi
else
printf " all required packets detected\n"
fi
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
scan_lan () {
printf " \n\n"
printf " Your Linux Distibution is $Codename $Architecture bit\n"
printf " Your LAN ip is $LANIP\n"
printf " \n\n"
for IP in $LANIP ;do
nmap $IP/24
done
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
check_LAN_connection () {
# check LAN connection
if [[ -z $(hostname -I) ]]; then
usage " No LAN / WLAN connection"
fi
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
check_WAN_connection () {
# check WAN connection
nc -zw1 8.8.8.8 443
if [[ ! $? == 0 ]]; then
WANConnection="offline"
fi
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
get_wan_IP () {
# get WAN IP and geo location
IPDiscoverServices=" https://check.torproject.org;Your IP address appears to be:
https://showmyip.gr;Your IP is:
https://meineipadresse.de;Meine IP-Adresse
http://checkip.dyndns.org;Current IP Address:"
SAVEIFS=$IFS
IFS=$(echo -en "\n\b")
for IPDiscoverService in $IPDiscoverServices ; do
ServiceURL=$( cut -d ";" -f1 <<< $IPDiscoverService | sed 's/^[ \t]*//')
GrepExpression=$( cut -d ";" -f2 <<< $IPDiscoverService)
# check for valid WAN IP / break URL check loop if WANIP contains valid IP
WANIP=$(wget -q -O - $(eval echo $ServiceURL) | grep "$GrepExpression" | grep -Eo '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}')
if [[ -n $WANIP ]]; then
break
else
ErrorLog=$(echo "$ErrorLog" "Website unreachable: $ServiceURL\n")
fi
done
IFS=$SAVEIFS
if [[ -n $ErrorLog ]] && [[ -z $DisableErrorMessages ]]; then usage " $(echo $ErrorLog)" ; fi
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
check_ip_devices () {
for IPDevice in $(ip a | grep ^[[:digit:]] | cut -d ":" -f2 | grep -v lo | tr -d " "); do
# get device specs
IPDeviceSpecs=$(ip a list $IPDevice)
DeviceName=$(echo "$IPDeviceSpecs" | head -n1 | awk -F ": " '{printf $2}')
DeviceIPv4=$(echo "$IPDeviceSpecs" | awk -F "inet " '{printf $2}' | cut -d "/" -f1)
DeviceIPv6=$(echo "$IPDeviceSpecs" | awk -F "inet6 " '{printf $2}' | cut -d "/" -f1)
DeviceMac=$(echo "$IPDeviceSpecs" | awk -F "link/ether " '{printf $2}' | cut -d " " -f1)
# parse values classes
DeviceIPv4=${DeviceIPv4:-${red}none ${end} }
DeviceIPv6=${DeviceIPv6:-${red}none ${end} }
DeviceClass=$DeviceName
if [[ -n $(grep ^en <<< $DeviceName) ]]; then DeviceClass=LAN ; fi
if [[ -n $(grep ^wl <<< $DeviceName) ]]; then DeviceClass=WLAN ; fi
if [[ -n $(grep ^anbox <<< $DeviceName) ]]; then DeviceClass=AnBox ; fi
PrintParser=network_information
print_parser "$DeviceClass IPv4" "=>" "$DeviceIPv4" "($DeviceMac) (dev: $DeviceName)"
print_parser "$DeviceClass IPv6" "=>" "$DeviceIPv6" "($DeviceMac) (dev: $DeviceName)"
done
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
network_information () {
# check for print output
if [[ -n $1 ]]; then
PrintNetworkSpecs=true
fi
# check WAN connection and set WAN value if offline
if [[ $WANConnection == "offline" ]]; then
WANIP="${red}none${end} "
GeoLocation="WAN offline"
TorCheck="${red}none${end} "
ServiceURL="TOR offline"
else
# get WAN IP
get_wan_IP
# get geolocation
GeoLocation=$(geoiplookup $WANIP | awk -F ": " '{print $2}')
GeoLocation=${GeoLocation/IP Address not found/XX}
#TorCheck=$(wget -q -O - https://check.torproject.org | grep "Tor" | sed -n 1p | cut -d " " -f7 | cut -d "." -f1)
TorCheck=$(lynx --dump https://check.torproject.org 2>/dev/null| sed -n 6p | cut -d . -f1)
TorCheck=${TorCheck//Sorry/${red}"inactive"${end} }
TorCheck=${TorCheck//Congratulations/${grn}"active"${end} }
fi
# get gateway http interface inforamtions // timeout required for mobile wlan / tethering
GatewayHTTPString=$(timeout 2 wget -q -O - $GatewayIP)
# parse Fritzbox gateway information
if [[ -n $(echo $GatewayHTTPString | grep 'FRITZ!Box') ]] ;then
GatewayDevice=$(echo $GatewayHTTPString | tr "," "\n" | tr -d '"' | awk -F "pageTitleProduct:" '{printf $2}')
fi
# substitute empty vars
GatewayDevice=${GatewayDevice:-unknown}
GatewayIP=${GatewayIP:-${red}none${end} }
GatewayMAC=${GatewayMAC:-no connection }
if [[ -z $DNSServerlistNmCLI ]] && [[ $GatewayIP == $DNSServerList ]]; then
DNSServerlistNmCLI="$GatewayMAC) (dev: $GatewayDevice"
fi
# printf network specs
if [[ -n $PrintNetworkSpecs ]]; then
# print network specs
PrintParser="network_information"
print_parser SeperatorLine
print_parser "WAN IP" "=>" "$WANIP" "($GeoLocation)"
print_parser "Gateway IP" "=>" "$GatewayIP" "($GatewayMAC) (dev: $GatewayDevice)"
print_parser "DNS Server" "=>" "$DNSServerList" "($DNSServerlistNmCLI)"
check_ip_devices
print_parser "TOR status" "=>" "$TorCheck " "($ServiceURL)"
print_parser SeperatorLine
fi
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
bandwidth_measurement () {
# skip for offline WAN connections
if [[ $WANConnection == "offline" ]]; then
usage " No WAN connection. Bandwidth measurement skipped"
fi
if [[ $(stat -c %Y $SpeedtestTempFile 2> /dev/null) -ge $(( `date +%s` - $MaxScriptExecutionIntervalBandwidth )) ]]; then
WaitingTime=$(( $(stat -c %Y $SpeedtestTempFile 2> /dev/null) - $(( `date +%s` - $MaxScriptExecutionIntervalBandwidth )) ))
print_parser SeperatorLine
PrintParser="info_line"
print_parser " Bandwidth measurement in progress, waiting "$WaitingTime"s"
print_parser SeperatorLine
exit
fi
print_parser SeperatorLine
# start measurement
$(speedtest --secure > $SpeedtestTempFile) &
# wait for finish measurement
sleep 0.2
while [[ $(pgrep speedtest) ]]; do
progressbar "| Bandwidth measurement in progress " 3 .
done
# parse speedtest output to output vars
SpeedtestOutput=$(cat $SpeedtestTempFile)
ClientISPName=$(echo "$SpeedtestOutput" | awk -F "Testing from " '{printf $2}' | sed 's/ (.*//g' | cut -c1-35)
ClientISPIP=$(echo "$SpeedtestOutput" | grep -Eo '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}')
TargetHost=$(echo "$SpeedtestOutput" | awk -F "Hosted by " '{printf $2}' | sed 's/\[.*$//' | cut -c1-35)
TargetHostDistance=$(echo "$SpeedtestOutput" | grep "Hosted by " | tr "[" "\n" | tr "]" "\n" | grep " km")
Ping=$(echo "$SpeedtestOutput" | grep "Hosted by " | awk -F "km]: " '{printf "%s ms" , substr($2, 1, 5) }')
DownloadSpeed=$(echo "$SpeedtestOutput" | grep "Download:" | cut -d " " -f2-4)
UploadSpeed=$(echo "$SpeedtestOutput" | grep "Upload:" | cut -d " " -f2-4)
GeoLocation=$(geoiplookup $ClientISPIP 2> /dev/null | awk -F ": " '{print $2}' | cut -d "," -f1)
GeoLocation=${GeoLocation/IP Address not found/XX}
PrintParser="bandwidth_measurement"
print_parser "Local host" "=>" "$ClientISPName" "($ClientISPIP|$GeoLocation)"
print_parser "Remote host" "=>" "$TargetHost" "($TargetHostDistance)"
# print parser spacing doesn`t work with colored tput prompt.
# print_parser "Bandwidth" "=>" "down: $(tput setaf 2)$DownloadSpeed$(tput sgr0) up: $(tput setaf 1)$UploadSpeed $(tput sgr0)" " ping: $Ping "
print_parser "Bandwidth" "=>" "down: $(tput setaf 2)$DownloadSpeed$(tput sgr0) up: $(tput setaf 1)$UploadSpeed $(tput sgr0)" "$(printf '\033[59`%s\n' "(ping: $Ping) ") " # '`'"
print_parser SeperatorLine
rm $SpeedtestTempFile
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
log_wan_ip () {
#TODO add option to clear log file
# check for running wanip_log
ActiveInstances=$(ps -aux | grep "ipspec -lw" | grep -v grep | wc -l)
if [[ $ActiveInstances -gt 2 ]]; then
usage " ipspec -lw already running"
fi
# disable errorlog and script exit
DisableErrorMessages=true
while true ; do
# get $WAN IP, substitute empty var
get_wan_IP
WANIP=${WANIP:-${red}no connection${end}}
# check for WANIP change / skip loop if no WAN change detected
if [[ "$WANIP" == $(cat $WanIPLogfile 2>/dev/null | tail -n 1 | cut -d "(" -f2 | cut -d ")" -f1) ]]; then
WANIPChange=false
CountdownMSG=" ${grn}WANIP unchanged ${end}(${grn}$WANIP${end}) | ${yel}$(date +"%F|%H:%M:%S")${end}"
else
# create new logfile line
DateUnixtime=$(date +%s)
DateHuman=$(date +"%F %H:%M:%S")
LogFileNewLine=" WANIP changed ($WANIP) $DateHuman $DateUnixtime"
CountdownMSG=" ${red}WANIP changed ${end}(${grn}$WANIP${end}) | ${yel}$(date +"%F|%H:%M:%S")${end}"
# write new logfile line
echo "$LogFileNewLine" >> $WanIPLogfile
fi
# update vars for next loop
WANIPLast=$WANIPActual
WANIPActual=$WANIP
parse_logfile () {
SAVEIFS=$IFS
IFS=$(echo -en "\n\b")
for LogFileLine in $(cat $WanIPLogfile) ; do
UnixTimeStamp=$( awk '{print $NF}' <<< "$LogFileLine")
Runtime=$(date -d@$(( $(date +"%s") - $(echo "$UnixTimeStamp" | cut -d " " -f10) - 86400 )) -u +%d-%H:%M:%S |\
sed 's/31-//' | sed 's/^00://' | sed 's/^0//' | sed 's/^0://' ) # use 2022-09-09 19:08:29 instead 1662743309
printf "$LogFileLine ($Runtime ago) \n" | sed 's/'$UnixTimeStamp'//'
done
IFS=$SAVEIFS
}
# print wan ip list
clear
LogListOutput=$(parse_logfile)
printf "$LogListOutput\n\n"
# countdown and quit request
tput civis
for i in `seq $WanIPLogDelay -1 0` ;do
echo -en "\015\033[K$CountdownMSG (wait $i)"
read -t 1 -N 1 Input
if [[ -n $Input ]]; then
printf "\n"
tput cnorm
exit
fi
done
done
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
fritzbox_reconnect () {
timeout 5 curl "http://$FritzboxIP:49000/igdupnp/control/WANIPConn1" -H "Content-Type: text/xml; charset="utf-8"" -H "SoapAction:urn:schemas-upnp-org:service:WANIPConnection:1#ForceTermination" -d "<?xml version='1.0' encoding='utf-8'?> <s:Envelope s:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/' xmlns:s='http://schemas.xmlsoap.org/soap/envelope/'> <s:Body> <u:ForceTermination xmlns:u='urn:schemas-upnp-org:service:WANIPConnection:1' /> </s:Body> </s:Envelope>"
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
fritzbox_WAN_IP () {
timeout 5 wget -qO- "http://$FritzboxIP:49000/igdupnp/control/WANIPConn1" --header "Content-Type: text/xml; charset="utf-8"" --header "SoapAction:urn:schemas-upnp-org:service:WANIPConnection:1#GetExternalIPAddress" --post-data="<?xml version='1.0' encoding='utf-8'?> <s:Envelope s:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/' xmlns:s='http://schemas.xmlsoap.org/soap/envelope/'> <s:Body> <u:GetExternalIPAddress xmlns:u='urn:schemas-upnp-org:service:WANIPConnection:1' /> </s:Body> </s:Envelope>" | grep -Eo '\<[[:digit:]]{1,3}(\.[[:digit:]]{1,3}){3}\>'
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
fritzbox_renew_ip () {
printf " old FritzBox WAN IP: $(fritzbox_WAN_IP) \n"
printf " reconnecting ...\n"
fritzbox_reconnect 2>&1> /dev/null 2>&1> /dev/null
sleep $FritzboxPrintNewIPWanIPLogDelay
printf " new FritzBox WAN IP: $(fritzbox_WAN_IP)\n"
}
#-------------------------------------------------------------------------------------------------------------------------------------------------------
############################################################################################################
############################################# start script #############################################
############################################################################################################
#------------------------------------------------------------------------------------------------------------
# check for valid input options
check_input_options "$@"
#------------------------------------------------------------------------------------------------------------
# check for monocrome output
if [[ -z $(grep "\-m" <<< $@) ]]; then
load_colorcodes
fi
#------------------------------------------------------------------------------------------------------------
# check connections
# disable IP check for logging functions
if [[ ! $1 == "-lw" ]]; then
check_LAN_connection
check_WAN_connection
fi
#------------------------------------------------------------------------------------------------------------
case $1 in
-h ) usage " help dialog";;
-i ) script_information;;
-v ) network_information pspec;;
-sl ) scan_lan;;
-bm ) bandwidth_measurement;;
-lw ) log_wan_ip;;
-fbr) fritzbox_renew_ip ;;
-cfrp) check_for_required_packages;;
* ) network_information pspec | grep -v none;;
esac
#------------------------------------------------------------------------------------------------------------
############################################################################################################
############################################## changelog ###############################################
############################################################################################################
#------------------------------------------------------------------------------------------------------------
# TODO add printf colorcodes instead of tput
# TODO check why space character error in print_parser occurs when using colorcodes
# TODO add new standalone option: list device status and MAC adresses even when LAN WAN is offline
# 3.2
# avoid wan_ip_log interruption for missing WAN/LAN connections
# 3.1
# integrate wan ip log => logging wan ip
# TODO => optimize date calculation ( calculate date differece using human daten not unixtime to avoid creation of 2 seperate files
# TODO => use printparser for log wan ip output
# 3.0
# add DNS servers output
# add DNS server infos using nmcli ( gnome )
# 2.9
# add input option check function
# 2.8
# format updated
# add ipv6 support
# add output for all and used devices
# add monocrome output
# 2.7
# LAN WAN check adde