#!/bin/sh
set -x
#
# The check_cisco.sh script is command and control wrapper for an Expect
# script, called config-engine.exp. These tools in combination perform a
# check on a router for updates.  Any changes are reported via syslog
# or via SMTP mail.

#
# The script tool is designed to run from Cron on a host
# running a TFTP server. As long as the TFTP server is local, the script(s)
# can run as a command line tool.
#
# The script requires two command-line values <host IP address> and the
# short <hostname>. The ip address tells the expect script what address to
# open a VTY session with. The hostname variable is used for naming the TFTP
# server directory and the configuration backup filenames. The fully
# qualified domain name can be used but will result in long TFTP directory
# and file names.
#
# In addition to the cli variables, two script variables "TFTP=<Serv IP
# Addr>"and the "TROOT=<dir>" need to be defined.
#
# The "TFTP=" variable should be the ip address of the TFTP server. In order
# for the file comparison and reporting functions to work the rover/config-
# eng tools should be run from the same host that is functioning as the TFTP
# server. If these functions are not required, comment out the SYSLOG report
# and Mail Report sections.
#
# command syntax rover <host ip addr> <hostname>
#
# User Defined Config Variables

# TFTP Server Address
TFTP=166.107.239.39

# TFTP Server root directory (as defined in inetd.conf)
TROOT=/tftpboot

# User or Users addresses that receive event reports via SMTP mail
RTP="joe@tasvorite.com"

# Under normal operating conditions, i.e., run from the host functioning as
# the TFTP server. No changes are required beyond this point.

# Test for command line variables:
# Was a target address provided?

if [ "$1" = "" ]
then
    echo "Target IP address is required, run command with -h to see required var
iables";exit
elif [ "$1" = "-h" ]
then
    echo "Config_rover.sh <Target IP Address> <Target Hostname>"
    exit
fi

# Was a hostname provided?

if [ "$2" = "" ]
then
    echo "Hostname is required"
    exit
fi

TFTPIP="$1"
THOST="$2"

# Create TFTP directory and placeholder file

# Event Stamp Format
TS=`date +%d`

# TFTP Directory-Name format
TFTPD="$THOST-$TFTPIP"

# TFTP Filename
TFTPF="$TFTPD/$TS.conf"

# Setting TFTP Server Paramaters
mkdir $TROOT/$TFTPD > /dev/null 2>&1
chmod 777 $TROOT/$TFTPD

touch $TROOT/$TFTPF
chmod 666 $TROOT/$TFTPF


# Run Configuration-Engine

# Define where the Configuration-Engine script resides
CONFENG=$THOST.exp

# Run Configuration-Engine script, the target address and other variables are
# passed to configuration-engine as command line variables

#expect -d $CONFENG $TFTPIP $TFTP $TFTPF > /dev/null 2>&1
expect -d $CONFENG $TFTPIP $TFTP $TFTPF

cd $TROOT

cmp -s $TROOT/$TFTPD/check.conf $TROOT/$TFTPF

if [ "$?" = "1" ]
then
    # Mail Report
    echo "`date` Cisco router changes on $THOST" > /tmp/tempfile.$$
    diff $TROOT/$TFTPD/check.conf $TROOT/$TFTPF >> /tmp/tempfile.$$

    mail -v $RTP -s "Change Report for $THOST" < /tmp/tempfile.$$
    rm /tmp/tempfile.$$
fi

# Create a backup of current saved configuration
cp $TROOT/$TFTPF $TROOT/$TFTPD/check.conf > /dev/null 2>&1

# Now compare running with stored configuration
cmp -s $TROOT/$TFTPD/check.conf $TROOT/$TFTPF.start

if [ "$?" = "1" ]
then
    # Mail Report
    echo "`date` Warning, start and running configurations dont match on $THOST"
 > /tmp/tempfile.$$
    diff $TROOT/$TFTPD/check.conf $TROOT/$TFTPF.start >> /tmp/tempfile.$$

    mail -v $RTP -s "Warning Report for $THOST" < /tmp/tempfile.$$
    rm /tmp/tempfile.$$
fi