135 lines
3.8 KiB
Bash
Executable File
135 lines
3.8 KiB
Bash
Executable File
#!/bin/bash
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##################################################################
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# NOTE! THIS IS A MODIFIED VERSION OF THE ORIGINAL PROGRAM
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# WRITTEN BY KEVIN REED. TO GET THE ORIGINAL PROGRAM SEE
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# THE URL BELOW:
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#
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# A Project of TNET Services, Inc
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#
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# Title: WiFi_Check
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# Author: Kevin Reed (Dweeber)
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# dweeber.dweebs@gmail.com
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# Project: Raspberry Pi Stuff
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#
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# Copyright: Copyright (c) 2012 Kevin Reed <kreed@tnet.com>
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# https://github.com/dweeber/WiFi_Check
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#
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# Purpose:
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#
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# Script checks to see if WiFi has a network IP and if not
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# restart WiFi
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#
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# Uses a lock file which prevents the script from running more
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# than one at a time. If lockfile is old, it removes it
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#
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# Instructions:
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#
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# o Install where you want to run it from like /usr/local/bin
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# o chmod 0755 /usr/local/bin/WiFi_Check
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# o Add to crontab
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#
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# Run Every 5 mins - Seems like ever min is over kill unless
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# this is a very common problem. If once a min change */5 to *
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# once every 2 mins */5 to */2 ...
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#
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# */5 * * * * /usr/local/bin/WiFi_Check
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#
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##################################################################
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# Settings
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# Which Interface do you want to check/fix
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wlan=wlan0
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# Which address do you want to ping to see if you can connect
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pingip1=192.168.1.1
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pingip2=192.168.0.1
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# Where and what you want to call the Lockfile
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#lockfile="/var/run/WiFi_Check_${wlan}.pid"
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lockfile="/var/run/WiFi_Check.pid"
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##################################################################
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echo
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echo "Starting WiFi check for $wlan"
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date
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echo
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# Check to see if there is a lock file
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if [ -e $lockfile ]; then
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# A lockfile exists... Lets check to see if it is still valid
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pid=`cat $lockfile`
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if kill -0 &>1 > /dev/null $pid; then
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# Still Valid... lets let it be...
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#echo "Process still running, Lockfile valid"
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exit 1
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else
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# Old Lockfile, Remove it
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#echo "Old lockfile, Removing Lockfile"
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rm $lockfile
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fi
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fi
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# If we get here, set a lock file using our current PID#
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#echo "Setting Lockfile"
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echo $$ > $lockfile
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# We can perform check
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echo "Performing Network check for $wlan"
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if ifconfig $wlan | grep -q "inet addr:" ; then
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echo "Network $wlan is Okay"
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else
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echo "Network $wlan are down!"
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echo " Try reconnecting $wlan ."
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ifdown $wlan
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sleep 5
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ifup --force $wlan
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ifconfig $wlan | grep "inet addr"
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if ifconfig $wlan | grep -q "inet addr:" ; then
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echo "Network $wlan is Okay"
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else
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echo "Try reconnecting $wlan:1 ."
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ifdown $wlan:1
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sleep 5
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ifup --force $wlan:1
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ifconfig $wlan | grep "inet addr"
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if ifconfig $wlan | grep -q "inet addr:" ; then
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echo "Network $wlan is Okay"
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else
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echo "Try reconnecting $wlan:2."
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ifdown $wlan:2
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sleep 5
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ifup --force $wlan:2
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ifconfig $wlan | grep "inet addr"
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fi
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fi
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fi
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#OLD# # We can perform check
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#OLD# #echo "Performing Network check for $wlan1"
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#OLD# /bin/ping -c 2 -I $wlan1 $pingip1 > /dev/null 2> /dev/null
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#OLD# if [ $? -ge 1 ] ; then
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#OLD# echo "Performing Network check for $wlan2"
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#OLD# /bin/ping -c 2 -I $wlan2 $pingip2 > /dev/null 2> /dev/null
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#OLD# if [ $? -ge 1 ] ; then
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#OLD# echo "Network connection down! Attempting reconnection."
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#OLD# /sbin/ifdown $wlan1
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#OLD# sleep 5
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#OLD# /sbin/ifup --force $wlan1
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#OLD# else
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#OLD# echo "Network $wlan2 is Okay"
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#OLD# fi
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#OLD# else
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#OLD# echo "Network $wlan1 is Okay"
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#OLD# fi
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echo
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echo "Current Setting:"
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ifconfig $wlan | grep "inet addr:"
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echo
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# Check is complete, Remove Lock file and exit
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#echo "process is complete, removing lockfile"
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rm $lockfile
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exit 0
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##################################################################
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# End of Script
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