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|
#!/bin/bash
#
# APF 9.7 [apf@r-fx.org]
###
# Copyright (C) 1999-2007, R-fx Networks <proj@r-fx.org>
# Copyright (C) 2007, Ryan MacDonald <ryan@r-fx.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
###
#
VER="9.7"
CNF="/etc/apf/conf.apf"
head() {
echo "APF version $VER <apf@r-fx.org>"
echo "Copyright (C) 1999-2007, R-fx Networks <proj@r-fx.org>"
echo "Copyright (C) 2007, Ryan MacDonald <ryan@r-fx.org>"
echo "This program may be freely redistributed under the terms of the GNU GPL"
echo ""
}
if [ -f "$CNF" ] && [ ! "$CNF" == "" ]; then
source $CNF
else
head
echo "\$CNF not found, aborting."
exit 1
fi
if [ ! -f $LOG_APF ]; then
touch $LOG_APF
chmod 600 $LOG_APF
eout "{glob} status log not found, created"
fi
start() {
##
# Fast Load
##
if [ "$SET_FASTLOAD" == "1" ]; then
# is this our first startup?
# if so we certainly do not want fast load
if [ ! -f "$INSTALL_PATH/internals/.last.full" ]; then
SKIP_FASTLOAD_FIRSTRUN=1
fi
# Is our last full load more than 12h ago?
# if so we are going to full load
if [ -f "$INSTALL_PATH/internals/.last.full" ]; then
LAST_FULL=`cat $INSTALL_PATH/internals/.last.full`
CURRENT_LOAD=`date +"%s"`
LOAD_DIFF=$[CURRENT_LOAD-LAST_FULL]
if [ ! "$LOAD_DIFF" -lt "43200" ]; then
SKIP_FASTLOAD_EXPIRED=1
fi
fi
# has our configuration changed since full load?
# if so full we go
MD5_FILES="$ADR $INSTALL_PATH/*.rules $INSTALL_PATH/internals/*.networks $INSTALL_PATH/vnet/*.rules"
if [ ! -f "$INSTALL_PATH/internals/.md5.cores" ]; then
SKIP_FASTLOAD_VARS=1
MD5_FIRSTRUN=1
else
EMPTY_MD5=`cat $INSTALL_PATH/internals/.md5.cores`
if [ "$EMPTY_MD5" == "" ]; then
$MD5 $MD5_FILES > $INSTALL_PATH/internals/.md5.cores 2> /dev/null
fi
$MD5 $MD5_FILES > $INSTALL_PATH/internals/.md5.cores.new 2> /dev/null
VARS_DIFF=`$DIFF $INSTALL_PATH/internals/.md5.cores.new $INSTALL_PATH/internals/.md5.cores`
if [ ! "$VARS_DIFF" == "" ]; then
$MD5 $MD5_FILES > $INSTALL_PATH/internals/.md5.cores 2> /dev/null
SKIP_FASTLOAD_VARS=1
fi
fi
if [ "$DEVEL_ON" == "1" ]; then
SKIP_FASTLOAD_VARS=1
fi
if [ ! -f "$INSTALL_PATH/internals/.md5.cores.new" ] && [ -f "$INSTALL_PATH/internals/.md5.cores" ]; then
cp $INSTALL_PATH/internals/.md5.cores $INSTALL_PATH/internals/.md5.cores.new
fi
if [ ! -f "$INSTALL_PATH/internals/.last.vars" ]; then
$INSTALL_PATH/apf -o > $INSTALL_PATH/internals/.last.vars
SKIP_FASTLOAD_VARS=1
else
$INSTALL_PATH/apf -o > $INSTALL_PATH/internals/.last.vars.new
VARS_DIFF=`$DIFF $INSTALL_PATH/internals/.last.vars.new $INSTALL_PATH/internals/.last.vars`
if [ ! "$VARS_DIFF" == "" ]; then
$INSTALL_PATH/apf -o > $INSTALL_PATH/internals/.last.vars
SKIP_FASTLOAD_VARS=1
fi
fi
# check uptiime is greater than 5 minutes (300s)
UPSEC=`cat /proc/uptime | tr '.' ' ' | awk '{print$1}'`
if [ "$UPSEC" -lt "300" ]; then
SET_FASTLOAD_UPSEC=1
fi
# check if we are flagged to skip fast load, otherwise off we go
if [ "$SKIP_FASTLOAD_FIRSTRUN" == "" ] && [ "$SKIP_FASTLOAD_EXPIRED" == "" ] && [ "$SKIP_FASTLOAD_VARS" == "" ] && [ "$SET_FASTLOAD_UPSEC" == "" ]; then
devm
eout "{glob} activating firewall, fast load"
$IPTR $INSTALL_PATH/internals/.apf.restore
eout "{glob} firewall initalized"
if [ "$SET_VERBOSE" == "1" ] && [ "$DEVEL_ON" == "1" ]; then
eout "{glob} !!DEVELOPMENT MODE ENABLED!! - firewall will flush every 5 minutes."
fi
exit 0
elif [ "$SKIP_FASTLOAD_FIRSTRUN" == "1" ]; then
eout "{glob} first run? fast load skipped [internals/.last.full not present]"
elif [ "$SKIP_FASTLOAD_EXPIRED" == "1" ]; then
eout "{glob} fast load snapshot more than 1h old, going full load"
elif [ "$SKIP_FASTLOAD_VARS" == "1" ]; then
eout "{glob} config. or .rule file has changed since last full load, going full load"
elif [ "$SET_FASTLOAD_UPSEC" == "1" ]; then
eout "{glob} uptime less than 5 minutes, going full load"
fi
fi
##
# Full Load
##
eout "{glob} activating firewall"
# record our last full load
date +"%s" > $INSTALL_PATH/internals/.last.full
if [ ! -f "$DS_HOSTS" ]; then
touch $DS_HOSTS
chmod 600 $DS_HOSTS
fi
if [ ! -f "$DENY_HOSTS" ]; then
touch $DENY_HOSTS
chmod 600 $DENY_HOSTS
fi
if [ ! -f "$ALLOW_HOSTS" ]; then
touch $ALLOW_HOSTS
chmod 600 $ALLOW_HOSTS
fi
# check devel mode
devm
# generate vnet rules
$INSTALL_PATH/vnet/vnetgen
# start main firewall script
$INSTALL_PATH/firewall
# check for/load bandmin
LOAD=`cat /proc/loadavg | tr '.' ' ' | awk '{print$1}'`
if [ ! "$LOAD" -gt "10" ]; then
bandmin
fi
eout "{glob} firewall initalized"
if [ "$MD5_FIRSTRUN" == "1" ]; then
$MD5 $MD5_FILES > $INSTALL_PATH/internals/.md5.cores 2> /dev/null
fi
firewall_on=`iptables -L --numeric | grep -vE "Chain|destination"`
if [ ! "$DEVEL_ON" == "1" ] && [ ! "$firewall_on" == "" ]; then
$IPTS > $INSTALL_PATH/internals/.apf.restore
eout "{glob} fast load snapshot saved"
fi
if [ "$SET_VERBOSE" == "1" ] && [ "$DEVEL_ON" == "1" ]; then
eout "{glob} !!DEVELOPMENT MODE ENABLED!! - firewall will flush every 5 minutes."
fi
}
case "$1" in
-s|--start)
start
;;
-f|--flush|--stop)
flush
;;
-l|--list)
list
;;
-t|-st|--status)
status
;;
-r|--restart)
$0 --flush
$0 --start
;;
-a|--allow)
cli_trust_allow $2 $3 $4 $5 $6 $7 $8 $9
;;
-d|--deny)
cli_trust_deny $2 $3 $4 $5 $6 $7 $8 $9
;;
-u|--remove|--unban)
cli_trust_remove $2 >> /dev/null 2>&1
eout "{trust} removed $2 from trust system"
if [ ! "$SET_VERBOSE" == "1" ]; then
echo "Removed $2 from trust system."
fi
;;
-e|--refresh)
refresh
;;
-o|--ovars)
head
ovars
;;
*)
head
help
esac
exit 0
|
