snort 2.9.7.0-5 / config

This file is indexed.

config is in snort 2.9.7.0-5.

This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.

The actual contents of the file can be viewed below. 

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#!/bin/sh -e

. /usr/share/debconf/confmodule
test $DEBIAN_SCRIPT_DEBUG && set -v -x

INTERFACES=""
if [ -r /etc/snort/snort.debian.conf ] ; then
    . /etc/snort/snort.debian.conf
    # Set the variables in debconf using the configuration values 
    # (if defined)
    [ ! -z "$DEBIAN_SNORT_STARTUP" ] && { db_set snort/startup "$DEBIAN_SNORT_STARTUP"; db_fset snort/startup seen true ; }
    [ ! -z "$DEBIAN_SNORT_HOME_NET" ] && { db_set snort/address_range "$DEBIAN_SNORT_HOME_NET"; db_fset snort/address_range seen true ; }
    if [ ! -z "$DEBIAN_SNORT_OPTIONS" ] ; then
        # Remove the -p option wich is added in postinst due to the 'DISABLE_PROMISCUOUS' debconf option
        DEBIAN_SNORT_OPTIONS=`echo "$DEBIAN_SNORT_OPTIONS" | sed -e 's/ -p$//'`
        db_get snort/reverse_order
        if [ "x$RET" = "xyes" ]; then
        # Remove the -o option which was introduced by Debconf
        # (snort/reverse_order) in versions previous to 2.8.5.2-2
            DEBIAN_SNORT_OPTIONS=`echo "$DEBIAN_SNORT_OPTIONS" | sed -e 's/ -o$//'`
        fi

        db_set snort/options "$DEBIAN_SNORT_OPTIONS" 
        db_fset snort/options seen true 
    fi
    [ ! -z "$DEBIAN_SNORT_INTERFACE" ] && { db_set snort/interface "$DEBIAN_SNORT_INTERFACE"; db_fset snort/interface seen true ; }
    [ ! -z "$DEBIAN_SNORT_SEND_STATS" ] && { db_set snort/send_stats "$DEBIAN_SNORT_SEND_STATS"; db_fset snort/send_stats seen true ; }
    [ ! -z "$DEBIAN_SNORT_STATS_RCPT" ] && { db_set snort/stats_rcpt "$DEBIAN_SNORT_STATS_RCPT" ; db_fset snort/stats_rcpt  seen true ; }
    [ ! -z "$DEBIAN_SNORT_STATS_THRESHOLD" ] && { db_set snort/stats_treshold "$DEBIAN_SNORT_STATS_THRESHOLD"; db_fset snort/stats_treshold seen true ; }
fi

check_interfaces() {
# Check the interface status, abort with error if one is configured but it
# is not available
      [ -z "$INTERFACES" ] && return 0
      ints=`echo $INTERFACES | sed -e  's/,/ /g'`
      for iface in $ints; do
	      if ! LC_ALL=C ifconfig "$iface" 2>/dev/null | grep -w UP >/dev/null; then
		      return 1
	     fi
      done
      return 0
}

db_input low snort/startup || true
db_go

# /etc/ppp/ip-up.d/snort is called with interface and IP number
db_get snort/startup
if [ "x$RET" = "xdialup" ]; then
  db_set snort/interface ""
  db_set snort/address_range ""
  db_set snort/disable_promiscuous true
else
  db_beginblock
  # Interface default in case the configuration file does not exist
  if [ -z "$DEBIAN_SNORT_INTERFACE" ] ; then
  	INTERFACES=eth0
  else 
  	INTERFACES="$DEBIAN_SNORT_INTERFACE"
  fi

  # Ask for a valid set of interfaces
  ok=''
  count=0
  while [ ! "$ok" ] && [ "$count" -lt 2 ]; do
  # Depending on whether the default interface is up or down we set the
  # question priority
        priority='medium'
	if ! check_interfaces
	then
	    priority='high'
	    db_fset snort/interface seen false 
	fi
	set +e
	db_input $priority snort/interface
        if [ $? -eq 30 ]; then
	# User is not being shown the question, break out
	     break
	fi
	set -e
	db_go || true
   # Check the interfaces
	db_get snort/interface
	INTERFACES=$RET
	if ! check_interfaces ; then
	  db_fset snort/invalid_interface seen false 
	  db_input critical snort/invalid_interface
	else
	  ok='yes'
        fi
	# Increment the count, we only go through this two times
	count=$(($count+1))
  done

  db_input high snort/address_range || true
  db_input low snort/disable_promiscuous || true
  db_endblock
  db_go
fi

db_beginblock
db_input low snort/options || true
db_endblock
db_go

db_beginblock
db_input low snort/send_stats || true
db_go

db_get snort/send_stats
if [ "x$RET" = "xtrue" ]; then
# TODO: This values should not be empty (even
# if we default to 'root' and '1' in the scripts)
# so the config script should check wether the 
# values here are legitimate.
	db_beginblock
	db_input medium snort/stats_rcpt || true
	db_input low snort/stats_treshold || true
	db_endblock
	db_go
fi

DEFAULT=/etc/default/snort
PARAMETERS=/etc/snort/snort.common.parameters
if [ -e "$DEFAULT" ] && [ -e "$PARAMETERS" ] ; then
	db_beginblock
	db_input high snort/config_parameters || true
	db_endblock
	db_go
fi

db_get snort/startup
if [ "x$RET" = "xmanual" ]; then
	db_beginblock
	db_input medium snort/please_restart_manually || true
	db_endblock
	db_go
fi

db_stop

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