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Check IP info for outgoing interface
This commit is contained in:
Dan Schaper
parent
464003d674
commit
29ae66c6db
1 changed files with 18 additions and 28 deletions
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@ -1,4 +1,4 @@
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#!/bin/bash
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#!/usr/bin/env bash
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# Pi-hole: A black hole for Internet advertisements
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# by Jacob Salmela
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# Network-wide ad blocking via your Raspberry Pi
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@ -24,9 +24,11 @@ columns=$(stty -a | tr \; \\012 | egrep 'columns' | cut -d' ' -f3)
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r=$(( rows / 2 ))
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c=$(( columns / 2 ))
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IPv4addr=$(ip -4 addr show | awk '{match($0,/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/); ip = substr($0,RSTART,RLENGTH); print ip}' | sed '/^\s*$/d' | grep -v "127.0.0.1")
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IPv4mask=$(ifconfig | awk -F':' '/inet addr/ && !/127.0.0.1/ {print $4}')
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IPv4gw=$(ip route show | awk '/default\ via/ {print $3}')
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# Find IP used to route to outside world
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IPv4info=$(ip route get 8.8.8.8)
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IPv4dev=$(echo $IPv4info| awk '{print $5}')
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IPv4addr=$(ip -o -f inet addr show dev $IPv4dev | awk '{print $4}')
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IPv4gw=$(echo $IPv4info | awk '{print $3}')
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# IPv6 support to be added later
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#IPv6eui64=$(ip addr show | awk '/scope\ global/ && /ff:fe/ {print $2}' | cut -d'/' -f1)
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@ -117,7 +119,6 @@ getStaticIPv4Settings()
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if (whiptail --backtitle "Calibrating network interface" --title "Static IP Address" --yesno "Do you want to use your current network settings as a static address?
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IP address: $IPv4addr
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Subnet mask: $IPv4mask
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Gateway: $IPv4gw" $r $c) then
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# If they choose yes, let the user know that the IP address will not be available via DHCP and may cause a conflict.
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whiptail --msgbox --backtitle "IP information" --title "FYI: IP Conflict" "It is possible your router could still try to assign this IP to a device, which would cause a conflict. But in most cases the router is smart enough to not do that.
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@ -138,22 +139,17 @@ else
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IPv4addr=$(whiptail --backtitle "Calibrating network interface" --title "IPv4 address" --inputbox "Enter your desired IPv4 address" $r $c $IPv4addr 3>&1 1>&2 2>&3)
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if [[ $? = 0 ]];then
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echo "Your static IPv4 address: $IPv4addr"
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# Ask for the subnet mask
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IPv4mask=$(whiptail --backtitle "Calibrating network interface" --title "IPv4 netmask" --inputbox "Enter your desired IPv4 subnet mask" $r $c $IPv4mask 3>&1 1>&2 2>&3)
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if [[ $? = 0 ]];then
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echo "Your static IPv4 netmask: $IPv4mask"
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# Ask for the gateway
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# Ask for the gateway
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IPv4gw=$(whiptail --backtitle "Calibrating network interface" --title "IPv4 gateway (router)" --inputbox "Enter your desired IPv4 default gateway" $r $c $IPv4gw 3>&1 1>&2 2>&3)
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if [[ $? = 0 ]];then
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echo "Your static IPv4 gateway: $IPv4gw"
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# Give the user a chance to review their settings before moving on
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if (whiptail --backtitle "Calibrating network interface" --title "Static IP Address" --yesno "Are these settings correct?
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IP address: $IPv4addr
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Subnet mask: $IPv4mask
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Gateway: $IPv4gw" $r $c)then
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# If the settings are correct, then we need to set the piholeIP
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# Saving it to a temporary file us to retrieve it later when we run the gravity.sh script
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echo $IPv4addr > /tmp/piholeIP
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echo ${IPv4addr%/*} > /tmp/piholeIP
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# After that's done, the loop ends and we move on
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ipSettingsCorrect=True
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else
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@ -167,12 +163,6 @@ else
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exit
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fi
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else
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# Cancelling subnet mask settings window
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ipSettingsCorrect=False
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echo "User canceled."
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exit
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fi
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else
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# Cancelling IPv4 settings window
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ipSettingsCorrect=False
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echo "User canceled."
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@ -188,7 +178,7 @@ setStaticIPv4()
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{
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# Append these lines to /etc/dhcpcd.conf to enable a static IP
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echo "interface $piholeInterface
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static ip_address=$IPv4addr/24
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static ip_address=$IPv4addr
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static routers=$IPv4gw
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static domain_name_servers=$IPv4gw" | sudo tee -a $dhcpcdFile >/dev/null
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}
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@ -224,15 +214,15 @@ sudo rm /var/www/master.zip 2>/dev/null
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sudo touch /var/log/pihole.log
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sudo chmod 644 /var/log/pihole.log
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sudo chown dnsmasq:root /var/log/pihole.log
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sudo curl -o /usr/local/bin/gravity.sh https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/gravity.sh
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sudo curl -o /usr/local/bin/chronometer.sh https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/advanced/Scripts/chronometer.sh
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sudo curl -o /usr/local/bin/whitelist.sh https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/advanced/Scripts/whitelist.sh
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sudo curl -o /usr/local/bin/piholeLogFlush.sh https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/advanced/Scripts/piholeLogFlush.sh
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sudo chmod 755 /usr/local/bin/gravity.sh
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sudo chmod 755 /usr/local/bin/chronometer.sh
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sudo chmod 755 /usr/local/bin/whitelist.sh
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sudo chmod 755 /usr/local/bin/piholeLogFlush.sh
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sudo /usr/local/bin/gravity.sh
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sudo curl -o /usr/bin/gravity.sh https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/gravity.sh
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sudo curl -o /usr/bin/chronometer.sh https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/advanced/Scripts/chronometer.sh
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sudo curl -o /usr/bin/whitelist.sh https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/advanced/Scripts/whitelist.sh
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sudo curl -o /usr/bin/piholeLogFlush.sh https://raw.githubusercontent.com/jacobsalmela/pi-hole/master/advanced/Scripts/piholeLogFlush.sh
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sudo chmod 755 /usr/bin/gravity.sh
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sudo chmod 755 /usr/bin/chronometer.sh
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sudo chmod 755 /usr/bin/whitelist.sh
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sudo chmod 755 /usr/bin/piholeLogFlush.sh
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sudo /usr/bin/gravity.sh
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}
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######## SCRIPT ############
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