tyler.durden
/
pi-hole
mirror of https://github.com/pi-hole/pi-hole.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Get IP info from outgoing interface 

Use IP to get interface information from outgoing interface. Use CIDR notation to make things easier.
This commit is contained in:
Dan Schaper 2015-11-25 14:08:13 -08:00
parent 4057a076a2
commit 21ee63b7fb
1 changed files with 9 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
automated install/basic-install.sh
View File

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