|
#!/bin/sh
|
|
#
|
|
# This is automatically generated file. DO NOT MODIFY !
|
|
#
|
|
# Firewall Builder fwb_ipt v2.1.14-1
|
|
#
|
|
# Generated Thu Apr 24 13:37:59 2008 CEST by hernad
|
|
#
|
|
# files: * router-wan-rg-2.fw
|
|
#
|
|
#
|
|
#
|
|
#
|
|
#
|
|
#
|
|
|
|
|
|
PATH="/sbin:/usr/sbin:/bin:/usr/bin:${PATH}"
|
|
export PATH
|
|
|
|
LSMOD="/sbin/lsmod"
|
|
MODPROBE="/sbin/modprobe"
|
|
IPTABLES="/usr/sbin/iptables"
|
|
IPTABLES_RESTORE="/usr/sbin/iptables-restore"
|
|
IP="/usr/sbin/ip"
|
|
LOGGER="/usr/bin/logger"
|
|
|
|
|
|
#
|
|
# Prolog script
|
|
#
|
|
|
|
#
|
|
# End of prolog script
|
|
#
|
|
|
|
log() {
|
|
echo "$1"
|
|
test -x "$LOGGER" && $LOGGER -p info "$1"
|
|
}
|
|
|
|
check_file() {
|
|
test -r "$2" || {
|
|
echo "Can not find file $2 referenced by AddressTable object $1"
|
|
exit 1
|
|
}
|
|
}
|
|
|
|
va_num=1
|
|
add_addr() {
|
|
addr=$1
|
|
nm=$2
|
|
dev=$3
|
|
|
|
type=""
|
|
aadd=""
|
|
|
|
L=`$IP -4 link ls $dev | head -n1`
|
|
if test -n "$L"; then
|
|
OIFS=$IFS
|
|
IFS=" /:,<"
|
|
set $L
|
|
type=$4
|
|
IFS=$OIFS
|
|
if test "$type" = "NO-CARRIER"; then
|
|
type=$5
|
|
fi
|
|
|
|
L=`$IP -4 addr ls $dev to $addr | grep inet | grep -v :`
|
|
if test -n "$L"; then
|
|
OIFS=$IFS
|
|
IFS=" /"
|
|
set $L
|
|
aadd=$2
|
|
IFS=$OIFS
|
|
fi
|
|
fi
|
|
if test -z "$aadd"; then
|
|
if test "$type" = "POINTOPOINT"; then
|
|
$IP -4 addr add $addr dev $dev scope global label $dev:FWB${va_num}
|
|
va_num=`expr $va_num + 1`
|
|
fi
|
|
if test "$type" = "BROADCAST"; then
|
|
$IP -4 addr add $addr/$nm dev $dev brd + scope global label $dev:FWB${va_num}
|
|
va_num=`expr $va_num + 1`
|
|
fi
|
|
fi
|
|
}
|
|
|
|
getInterfaceVarName() {
|
|
echo $1 | sed 's/\./_/'
|
|
}
|
|
|
|
getaddr() {
|
|
dev=$1
|
|
name=$2
|
|
L=`$IP -4 addr show dev $dev | grep inet | grep -v :`
|
|
test -z "$L" && {
|
|
eval "$name=''"
|
|
return
|
|
}
|
|
OIFS=$IFS
|
|
IFS=" /"
|
|
set $L
|
|
eval "$name=$2"
|
|
IFS=$OIFS
|
|
}
|
|
|
|
|
|
getinterfaces() {
|
|
NAME=$1
|
|
$IP link show | grep ": $NAME" | while read L; do
|
|
OIFS=$IFS
|
|
IFS=" :"
|
|
set $L
|
|
IFS=$OIFS
|
|
echo $2
|
|
done
|
|
}
|
|
|
|
|
|
# increment ip address
|
|
incaddr()
|
|
{
|
|
n1=$4
|
|
n2=$3
|
|
n3=$2
|
|
n4=$1
|
|
|
|
vn1=`eval "echo \\$$n1"`
|
|
|
|
R=`expr $vn1 \< 255`
|
|
if test $R = "1"; then
|
|
eval "$n1=`expr $vn1 + 1`"
|
|
else
|
|
eval "$n1=0"
|
|
incaddr XX $n4 $n3 $n2
|
|
fi
|
|
}
|
|
|
|
if $IP link ls >/dev/null 2>&1; then
|
|
echo;
|
|
else
|
|
echo "iproute not found"
|
|
exit 1
|
|
fi
|
|
|
|
|
|
|
|
MODULES_DIR="/lib/modules/`uname -r`/kernel/net/"
|
|
MODULES=`find $MODULES_DIR -name '*conntrack*'|sed -e 's/^.*\///' -e 's/\([^\.]\)\..*/\1/'`
|
|
MODULES="$MODULES `find $MODULES_DIR -name '*nat*'|sed -e 's/^.*\///' -e 's/\([^\.]\)\..*/\1/'`"
|
|
for module in $MODULES; do
|
|
if $LSMOD | grep ${module} >/dev/null; then continue; fi
|
|
$MODPROBE ${module} || exit 1
|
|
done
|
|
|
|
|
|
# Using 0 address table files
|
|
|
|
|
|
# Configure interfaces
|
|
$IP -4 neigh flush dev br-lan >/dev/null 2>&1
|
|
$IP -4 addr flush dev br-lan secondary label "br-lan:FWB*" >/dev/null 2>&1
|
|
|
|
getaddr ppp1 i_ppp1
|
|
getaddr ppp0 i_ppp0
|
|
|
|
# Add virtual addresses for NAT rules
|
|
|
|
|
|
log 'Activating firewall script generated Thu Apr 24 13:37:59 2008 by hernad'
|
|
|
|
$IPTABLES -P OUTPUT DROP
|
|
$IPTABLES -P INPUT DROP
|
|
$IPTABLES -P FORWARD DROP
|
|
ip6tables -L -n > /dev/null 2>&1 && {
|
|
ip6tables -P OUTPUT DROP
|
|
ip6tables -P INPUT DROP
|
|
ip6tables -P FORWARD DROP
|
|
ip6tables -A INPUT -i lo -j ACCEPT
|
|
ip6tables -A OUTPUT -o lo -j ACCEPT
|
|
}
|
|
|
|
|
|
|
|
cat /proc/net/ip_tables_names | while read table; do
|
|
$IPTABLES -t $table -L -n | while read c chain rest; do
|
|
if test "X$c" = "XChain" ; then
|
|
$IPTABLES -t $table -F $chain
|
|
fi
|
|
done
|
|
$IPTABLES -t $table -X
|
|
done
|
|
|
|
|
|
$IPTABLES -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
|
|
$IPTABLES -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
|
|
$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
|
|
|
|
$IPTABLES -A FORWARD -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
|
|
|
|
#
|
|
# Rule 0 (NAT)
|
|
#
|
|
echo "Rule 0 (NAT)"
|
|
#
|
|
#
|
|
test -n "$i_ppp0" && $IPTABLES -t nat -A PREROUTING -p tcp -m tcp -m multiport -d $i_ppp0 --dports 25,80,443 -j DNAT --to-destination 192.168.55.12
|
|
#
|
|
# Rule 1 (NAT)
|
|
#
|
|
echo "Rule 1 (NAT)"
|
|
#
|
|
#
|
|
$IPTABLES -t nat -N Cid480E19E47826.0
|
|
$IPTABLES -t nat -A POSTROUTING -o ppp0 -s 192.168.55.0/24 -j Cid480E19E47826.0
|
|
$IPTABLES -t nat -A Cid480E19E47826.0 -d 195.222.62.0/24 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19E47826.0 -d 195.222.57.0/24 -j MASQUERADE
|
|
#
|
|
# Rule 2 (NAT)
|
|
#
|
|
echo "Rule 2 (NAT)"
|
|
#
|
|
#
|
|
$IPTABLES -t nat -N Cid480E19F97826.0
|
|
$IPTABLES -t nat -A POSTROUTING -o ppp1 -s 192.168.55.0/24 -j Cid480E19F97826.0
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 208.0.0.0/4 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 200.0.0.0/5 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 196.0.0.0/6 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 195.224.0.0/11 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 195.222.0.0/15 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 224.0.0.0/4 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 240.0.0.0/5 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 248.0.0.0/6 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 252.0.0.0/7 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 254.0.0.0/8 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 255.0.0.0/9 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 255.128.0.0/10 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 255.192.0.0/11 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 255.224.0.0/12 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 255.240.0.0/13 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 255.248.0.0/14 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 255.252.0.0/15 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 255.254.0.0/16 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 255.255.0.0 -j MASQUERADE
|
|
$IPTABLES -t nat -A Cid480E19F97826.0 -d 80.65.85.0/24 -j MASQUERADE
|
|
#
|
|
# Rule 3 (NAT)
|
|
#
|
|
echo "Rule 3 (NAT)"
|
|
#
|
|
#
|
|
$IPTABLES -t nat -A POSTROUTING -o ppp0 -s 192.168.55.0/24 -j MASQUERADE
|
|
#
|
|
# Rule 0 (lo)
|
|
#
|
|
echo "Rule 0 (lo)"
|
|
#
|
|
#
|
|
#
|
|
$IPTABLES -A INPUT -i lo -m state --state NEW -j ACCEPT
|
|
$IPTABLES -A OUTPUT -o lo -m state --state NEW -j ACCEPT
|
|
#
|
|
# Rule 1 (global)
|
|
#
|
|
echo "Rule 1 (global)"
|
|
#
|
|
#
|
|
#
|
|
$IPTABLES -N RULE_1
|
|
$IPTABLES -A OUTPUT -p icmp -m icmp --icmp-type 0/0 -m state --state NEW -j RULE_1
|
|
$IPTABLES -A OUTPUT -p icmp -m icmp --icmp-type 8/0 -m state --state NEW -j RULE_1
|
|
$IPTABLES -A OUTPUT -p tcp -m tcp -m multiport --dports 22,25,443,80 -m state --state NEW -j RULE_1
|
|
$IPTABLES -A INPUT -p icmp -m icmp --icmp-type 0/0 -m state --state NEW -j RULE_1
|
|
$IPTABLES -A INPUT -p icmp -m icmp --icmp-type 8/0 -m state --state NEW -j RULE_1
|
|
$IPTABLES -A INPUT -p tcp -m tcp -m multiport --dports 22,25,443,80 -m state --state NEW -j RULE_1
|
|
$IPTABLES -A FORWARD -p icmp -m icmp --icmp-type 0/0 -m state --state NEW -j RULE_1
|
|
$IPTABLES -A FORWARD -p icmp -m icmp --icmp-type 8/0 -m state --state NEW -j RULE_1
|
|
$IPTABLES -A FORWARD -p tcp -m tcp -m multiport --dports 22,25,443,80 -m state --state NEW -j RULE_1
|
|
$IPTABLES -A RULE_1 -j LOG --log-level info --log-prefix "RULE 1 -- ACCEPT "
|
|
$IPTABLES -A RULE_1 -j ACCEPT
|
|
#
|
|
# Rule 2 (global)
|
|
#
|
|
echo "Rule 2 (global)"
|
|
#
|
|
#
|
|
#
|
|
$IPTABLES -N RULE_2
|
|
$IPTABLES -A INPUT -s 192.168.55.0/24 -m state --state NEW -j RULE_2
|
|
$IPTABLES -A RULE_2 -j LOG --log-level info --log-prefix "RULE 2 -- ACCEPT "
|
|
$IPTABLES -A RULE_2 -j ACCEPT
|
|
#
|
|
# Rule 3 (global)
|
|
#
|
|
echo "Rule 3 (global)"
|
|
#
|
|
# Firewall uses one of the machines
|
|
# on internal network for DNS
|
|
#
|
|
$IPTABLES -A OUTPUT -p tcp -m tcp -d 192.168.55.0/24 --dport 53 -m state --state NEW -j ACCEPT
|
|
$IPTABLES -A OUTPUT -p udp -m udp -d 192.168.55.0/24 --dport 53 -m state --state NEW -j ACCEPT
|
|
#
|
|
# Rule 4 (global)
|
|
#
|
|
echo "Rule 4 (global)"
|
|
#
|
|
#
|
|
#
|
|
$IPTABLES -N Cid480E19897826.0
|
|
$IPTABLES -A INPUT -p tcp -m tcp -m multiport --dports 53,873 -m state --state NEW -j Cid480E19897826.0
|
|
$IPTABLES -A INPUT -p udp -m udp -m multiport --dports 53,123,1194 -m state --state NEW -j Cid480E19897826.0
|
|
$IPTABLES -A Cid480E19897826.0 -s 192.168.55.254 -j ACCEPT
|
|
test -n "$i_ppp1" && $IPTABLES -A Cid480E19897826.0 -s $i_ppp1 -j ACCEPT
|
|
test -n "$i_ppp0" && $IPTABLES -A Cid480E19897826.0 -s $i_ppp0 -j ACCEPT
|
|
$IPTABLES -A OUTPUT -p tcp -m tcp -m multiport --dports 53,873 -m state --state NEW -j ACCEPT
|
|
$IPTABLES -A OUTPUT -p udp -m udp -m multiport --dports 53,123,1194 -m state --state NEW -j ACCEPT
|
|
#
|
|
# Rule 5 (global)
|
|
#
|
|
echo "Rule 5 (global)"
|
|
#
|
|
#
|
|
#
|
|
$IPTABLES -N RULE_5
|
|
$IPTABLES -A INPUT -s 192.168.55.0/24 -m state --state NEW -j RULE_5
|
|
$IPTABLES -A OUTPUT -s 192.168.55.0/24 -m state --state NEW -j RULE_5
|
|
$IPTABLES -A FORWARD -s 192.168.55.0/24 -m state --state NEW -j RULE_5
|
|
$IPTABLES -A RULE_5 -j LOG --log-level info --log-prefix "RULE 5 -- ACCEPT "
|
|
$IPTABLES -A RULE_5 -j ACCEPT
|
|
#
|
|
# Rule 6 (global)
|
|
#
|
|
echo "Rule 6 (global)"
|
|
#
|
|
#
|
|
#
|
|
$IPTABLES -N RULE_6
|
|
$IPTABLES -A OUTPUT -j RULE_6
|
|
$IPTABLES -A INPUT -j RULE_6
|
|
$IPTABLES -A FORWARD -j RULE_6
|
|
$IPTABLES -A RULE_6 -j LOG --log-level info --log-prefix "POLICY-DENY "
|
|
$IPTABLES -A RULE_6 -j DROP
|
|
#
|
|
#
|
|
echo 1 > /proc/sys/net/ipv4/ip_forward
|
|
|
|
|
|
#
|
|
# Epilog script
|
|
#
|
|
|
|
|
|
# End of epilog script
|
|
#
|
|
|
|
|
