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#!/bin/sh
# pfSense ping helper
# written by Scott Ullrich
# (C)2006 Scott Ullrich
# All rights reserved.
# Format of file should be deliminted by |
# Field 1: Source ip
# Field 2: Destination ip
# Field 3: Ping count
# Field 4: Script to run when service is down
# Field 5: Script to run once service is restored
# Field 6: Ping time threshold
# Field 7: Wan ping time threshold
# Read in ipsec ping hosts and check the CARP status
if [ -f /var/db/ipsecpinghosts ]; then
IPSECHOSTS="/var/db/ipsecpinghosts"
CURRENTIPSECHOSTS="/var/db/currentipsecpinghosts"
IFVPNSTATE=`ifconfig $IFVPN | grep "carp: BACKUP vhid" | wc -l`
if [ $IFVPNSTATE -gt 1 ]; then
echo -e "CARP interface in BACKUP (not pinging ipsec hosts)"
rm -f $CURRENTIPSECHOSTS
touch $CURRENTIPSECHOSTS
else
echo -e "CARP interface is MASTER or non CARP (pinging ipsec hosts)"
cat < $IPSECHOSTS > $CURRENTIPSECHOSTS
fi
fi
# General file meant for user consumption
if [ -f /var/db/hosts ]; then
HOSTS="/var/db/hosts"
fi
# Package specific ping requests
if [ -f /var/db/pkgpinghosts ]; then
PKGHOSTS="/var/db/pkgpinghosts"
fi
cat $PKGHOSTS $HOSTS $IPSECHOSTS >/tmp/tmpHOSTS
if [ ! -d /var/db/pingstatus ]; then
/bin/mkdir -p /var/db/pingstatus
fi
if [ ! -d /var/db/pingmsstatus ]; then
/bin/mkdir -p /var/db/pingmsstatus
fi
PINGHOSTS=`cat /tmp/tmpHOSTS`
PINGHOSTCOUNT=`cat /tmp/tmpHOSTS | wc -l`
if [ "$PINGHOSTCOUNT" -lt "1" ]; then
exit
fi
for TOPING in $PINGHOSTS ; do
echo "PROCESSING $TOPING"
SRCIP=`echo $TOPING | cut -d"|" -f1`
DSTIP=`echo $TOPING | cut -d"|" -f2`
COUNT=`echo $TOPING | cut -d"|" -f3`
FAILURESCRIPT=`echo $TOPING | cut -d"|" -f4`
SERVICERESTOREDSCRIPT=`echo $TOPING | cut -d"|" -f5`
THRESHOLD=`echo $TOPING | cut -d"|" -f6`
WANTHRESHOLD=`echo $TOPING | cut -d"|" -f7`
echo Processing $DSTIP
# Look for a service being down
ping -c $COUNT -S $SRCIP $DSTIP
if [ $? -eq 0 ]; then
# Host is up
# Read in previous status
PREVIOUSSTATUS=`cat /var/db/pingstatus/$DSTIP`
if [ "$PREVIOUSSTATUS" = "DOWN" ]; then
# Service restored
if [ "$SERVICERESTOREDSCRIPT" != "" ]; then
echo "$DSTIP is UP, previous state was DOWN .. Running $SERVICERESTOREDSCRIPT"
echo "$DSTIP is UP, previous state was DOWN .. Running $SERVICERESTOREDSCRIPT" | logger -p daemon.info -i -t PingMonitor
sh -c $SERVICERESTOREDSCRIPT
fi
fi
echo "UP" > /var/db/pingstatus/$DSTIP
else
# Host is down
PREVIOUSSTATUS=`cat /var/db/pingstatus/$DSTIP`
if [ "$PREVIOUSSTATUS" = "UP" ]; then
# Service is down
if [ "$FAILURESCRIPT" != "" ]; then
echo "$DSTIP is DOWN, previous state was UP .. Running $FAILURESCRIPT"
echo "$DSTIP is DOWN, previous state was UP .. Running $FAILURESCRIPT" | logger -p daemon.info -i -t PingMonitor
sh -c $FAILURESCRIPT
fi
fi
echo "DOWN" > /var/db/pingstatus/$DSTIP
fi
echo "Checking ping time $DSTIP"
# Look at ping values themselves
PINGTIME=`ping -c 1 -S $SRCIP $DSTIP | awk '{ print $7 }' | grep time | cut -d "=" -f2`
echo "Ping returned $?"
echo $PINGTIME > /var/db/pingmsstatus/$DSTIP
if [ "$THRESHOLD" != "" ]; then
if [ "$PINGTIME" -gt "$THRESHOLD" ]; then
echo "$DSTIP has exceeded ping threshold $PINGTIME / $THRESHOLD .. Running $FAILURESCRIPT"
echo "$DSTIP has exceeded ping threshold $PINGTIME / $THRESHOLD .. Running $FAILURESCRIPT" | logger -p daemon.info -i -t PingMonitor
sh -c $FAILURESCRIPT
fi
fi
# Wan ping time threshold
#WANTIME=`rrdtool fetch /var/db/rrd/wan-quality.rrd AVERAGE -r 120 -s -1min -e -1min | grep ":" | cut -f3 -d" " | cut -d"e" -f1`
echo "Checking wan ping time $WANTIME"
echo $WANTIME > /var/db/wanaverage
if [ "$WANTHRESHOLD" != "" ]; then
if [ "$WANTIME" -gt "$WANTHRESHOLD" ]; then
echo "$DSTIP has exceeded wan ping threshold $WANTIME / $WANTHRESHOLD .. Running $FAILURESCRIPT"
echo "$DSTIP has exceeded wan ping threshold $WANTIME / $WANTHRESHOLD .. Running $FAILURESCRIPT" | logger -p daemon.info -i -t PingMonitor
sh -c $FAILURESCRIPT
fi
fi
sleep 1
done
exit 0
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