src/initscripts/init.d/snort

   1 #!/bin/sh
   2 ########################################################################
   3 # Begin $rc_base/init.d/snort
   4 #
   5 # Description : Snort Initscript
   6 #
   7 # Authors     : Michael Tremer for ipfire.org - mitch@ipfire.org
   8 #
   9 # Version     : 01.00
  10 #
  11 # Notes       :
  12 #
  13 ########################################################################
  14
  15 . /etc/sysconfig/rc
  16 . ${rc_functions}
  17
  18 PATH=/usr/local/sbin:/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin; export PATH
  19
  20 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
  21 eval $(/usr/local/bin/readhash /var/ipfire/snort/settings)
  22
  23 if [ "$ENABLE_SNORT_ORANGE" == "on" ]; then
  24         HOME_NET+="$ORANGE_ADDRESS,"
  25         DEVICES+="$ORANGE_DEV "
  26 fi
  27
  28 if [ "$ENABLE_SNORT_GREEN" == "on" ]; then
  29         HOME_NET+="$GREEN_ADDRESS,"
  30         DEVICES+="$GREEN_DEV "
  31 fi
  32
  33 if [ "$ENABLE_SNORT_BLUE" == "on" ]; then
  34         HOME_NET+="$BLUE_ADDRESS,"
  35         DEVICES+="$BLUE_DEV "
  36 fi
  37
  38 if [ "$ENABLE_SNORT" == "on" ]; then
  39         LOCAL_IP=`cat /var/ipfire/red/local-ipaddress`
  40         if [ "$LOCAL_IP" ]; then
  41                 HOME_NET+="$LOCAL_IP,"
  42         else
  43                 exit 1 ## Add error handling here
  44         fi
  45         DEVICES+=`cat /var/ipfire/red/iface 2>/dev/null`
  46 fi
  47
  48 COUNT=`echo $HOME_NET | wc -m`
  49 HOME_NET=`echo $HOME_NET | cut -c $[$COUNT - 2]`
  50
  51 echo "var HOME_NET [$HOME_NET]" >       /etc/snort/vars
  52 echo "var EXTERNAL_NET ANY" >>          /etc/snort/vars
  53
  54 DNS1=`cat /var/ipfire/red/dns1 2>/dev/null`
  55 DNS2=`cat /var/ipfire/red/dns2 2>/dev/null`
  56
  57 if [ "$DNS2" ]; then
  58         echo "var DNS_SERVERS [$DNS1,$DNS2]" >> /etc/snort/vars
  59 else
  60         echo "var DNS_SERVERS $DNS1" >> /etc/snort/vars
  61 fi
  62
  63 case "$1" in
  64         start)
  65                 for DEVICE in $DEVICES; do
  66                         boot_mesg "Starting Intrusion Detection System on $DEVICE..."
  67                         /usr/sbin/snort -c /etc/snort/snort.conf -i $DEVICE -D -l /var/log/snort --create-pidfile --nolock-pidfile --pid-path /var/run/
  68                         evaluate_retval
  69                         sleep 1
  70                         chmod 644 /var/run/snort_$DEVICE.pid
  71                 done
  72
  73
  74                 if [ -r /var/ipfire/guardian/enable ]; then
  75                               IFACE=`/bin/cat /var/ipfire/red/iface 2>/dev/null | /usr/bin/tr -d '\012'`
  76                         sed -e "s/^Interface.*/Interface       ${IFACE}/" /var/ipfire/guardian/guardian.conf > temp
  77                         mv temp /var/ipfire/guardian/guardian.conf
  78                         chown nobody.root /var/ipfire/guardian/guardian.conf
  79
  80                   boot_mesg "Starting Guardian..."
  81                               loadproc /usr/local/bin/guardian.pl -c /var/ipfire/guardian/guardian.conf
  82                             fi
  83                     ;;
  84
  85         stop)
  86                DEVICES=""
  87                if [ -r /var/run/snort_$BLUE_DEV.pid ]; then
  88                  DEVICES+="$BLUE_DEV "
  89                fi
  90
  91                if [ -r /var/run/snort_$GREEN_DEV.pid ]; then
  92                  DEVICES+="$GREEN_DEV "
  93               fi
  94
  95               if [ -r /var/run/snort_$ORANGE_DEV.pid ]; then
  96                  DEVICES+="$ORANGE_DEV "
  97               fi
  98
  99               RED=`cat /var/ipfire/red/iface 2>/dev/null`
 100               if [ -r /var/run/snort_$RED.pid ]; then
 101                  DEVICES+=`cat /var/ipfire/red/iface 2>/dev/null`
 102               fi
 103
 104               for DEVICE in $DEVICES; do
 105                  boot_mesg "Stopping Intrusion Detection System on $DEVICE..."
 106                  killproc -p /var/run/snort_$DEVICE.pid /var/run
 107               done
 108
 109               rm /var/run/snort_* >/dev/null 2>/dev/null
 110
 111               if [ -r /var/ipfire/guardian/enable ]; then
 112                           boot_mesg "Stopping Guardian..."
 113                           killproc /usr/local/bin/guardian.pl
 114                           fi
 115         ;;
 116
 117         status)
 118                 statusproc /usr/sbin/snort
 119                 ;;
 120
 121         restart)
 122                 $0 stop
 123                 $0 start
 124                 ;;
 125
 126         *)
 127                 echo "Usage: $0 {start|stop|restart|status}"
 128                 exit 1
 129                 ;;
 130 esac
 131
 132 chmod 644 /var/log/snort/* 2>/dev/null
 133
 134 # End $rc_base/init.d/snort