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fwbuilder/test/ipt/firewall25.fw.orig
Vadim Kurland 15bab71f49 * NATCompiler_ipt.cpp (compile): see #2456 Added support for 
single object negation in "Inbound Interface" and "Outbound
Interface" columns in compiler for iptables.

* NATCompiler_pf.cpp (compile): see #2456 Added support for single
object negation in "Interface" rule element of PF NAT rules. Now
compiler can produce PF commands such as "nat on ! em0 ... " (for
PF <4.7) or "match on ! em0 ..." (for PF >= 4.7)

* Compiler.cpp (singleObjectNegation::processNext): moved rule
processor that processes single object negation in any rule
element to the base class Compiler.
2011-06-03 17:54:14 -07:00

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#!/bin/sh
#
# This is automatically generated file. DO NOT MODIFY !
#
# Firewall Builder fwb_ipt v5.0.0.3547
#
# Generated Fri Jun 3 17:27:40 2011 PDT by vadim
#
# files: * firewall25.fw /etc/fw/firewall25.fw
#
# Compiled for iptables 1.4.0
#
# this firewall uses iptables-restore format. Firewall has wildcard interface ppp*; script is generated dynamically and then piped to iptables-restore
# two rule sets for the filter table, to make sure there is only
# one COMMIT for both
# firewall25::: error: Dynamic interface ppp* should not have an IP address object attached to it. This IP address object will be ignored.
# firewall25:policy_2_mangle:1: error: Action Reject is not allowed in mangle table
# firewall25::: warning: Can not add virtual address for object address
# firewall25::: warning: Can not add virtual address for object address
FWBDEBUG=""
PATH="/sbin:/usr/sbin:/bin:/usr/bin:${PATH}"
export PATH
LSMOD="/sbin/lsmod"
MODPROBE="/sbin/modprobe"
IPTABLES="/sbin/iptables"
IP6TABLES="/sbin/ip6tables"
IPTABLES_RESTORE="/sbin/iptables-restore"
IP6TABLES_RESTORE="/sbin/ip6tables-restore"
IP="/sbin/ip"
IFCONFIG="/sbin/ifconfig"
VCONFIG="/sbin/vconfig"
BRCTL="/sbin/brctl"
IFENSLAVE="/sbin/ifenslave"
IPSET="/usr/sbin/ipset"
LOGGER="/usr/bin/logger"
log() {
echo "$1"
command -v "$LOGGER" >/dev/null 2>&1 && $LOGGER -p info "$1"
}
getInterfaceVarName() {
echo $1 | sed 's/\./_/'
}
getaddr_internal() {
dev=$1
name=$2
af=$3
L=$($IP $af addr show dev $dev | sed -n '/inet/{s!.*inet6* !!;s!/.*!!p}' | sed 's/peer.*//')
test -z "$L" && {
eval "$name=''"
return
}
eval "${name}_list=\"$L\""
}
getnet_internal() {
dev=$1
name=$2
af=$3
L=$($IP route list proto kernel | grep $dev | grep -v default | sed 's! .*$!!')
test -z "$L" && {
eval "$name=''"
return
}
eval "${name}_list=\"$L\""
}
getaddr() {
getaddr_internal $1 $2 "-4"
}
getaddr6() {
getaddr_internal $1 $2 "-6"
}
getnet() {
getnet_internal $1 $2 "-4"
}
getnet6() {
getnet_internal $1 $2 "-6"
}
# function getinterfaces is used to process wildcard interfaces
getinterfaces() {
NAME=$1
$IP link show | grep ": $NAME" | while read L; do
OIFS=$IFS
IFS=" :"
set $L
IFS=$OIFS
echo $2
done
}
diff_intf() {
func=$1
list1=$2
list2=$3
cmd=$4
for intf in $list1
do
echo $list2 | grep -q $intf || {
# $vlan is absent in list 2
$func $intf $cmd
}
done
}
find_program() {
PGM=$1
command -v $PGM >/dev/null 2>&1 || {
echo "$PGM not found"
exit 1
}
}
check_tools() {
find_program $IPTABLES
find_program $IPTABLES_RESTORE
find_program $IP
}
reset_iptables_v4() {
$IPTABLES -P OUTPUT DROP
$IPTABLES -P INPUT DROP
$IPTABLES -P FORWARD DROP
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
}
reset_iptables_v6() {
$IP6TABLES -P OUTPUT DROP
$IP6TABLES -P INPUT DROP
$IP6TABLES -P FORWARD DROP
cat /proc/net/ip6_tables_names | while read table; do
$IP6TABLES -t $table -L -n | while read c chain rest; do
if test "X$c" = "XChain" ; then
$IP6TABLES -t $table -F $chain
fi
done
$IP6TABLES -t $table -X
done
}
P2P_INTERFACE_WARNING=""
missing_address() {
address=$1
cmd=$2
oldIFS=$IFS
IFS="@"
set $address
addr=$1
interface=$2
IFS=$oldIFS
$IP addr show dev $interface | grep -q POINTOPOINT && {
test -z "$P2P_INTERFACE_WARNING" && echo "Warning: Can not update address of interface $interface. fwbuilder can not manage addresses of point-to-point interfaces yet"
P2P_INTERFACE_WARNING="yes"
return
}
test "$cmd" = "add" && {
echo "# Adding ip address: $interface $addr"
echo $addr | grep -q ':' && {
$FWBDEBUG $IP addr $cmd $addr dev $interface
} || {
$FWBDEBUG $IP addr $cmd $addr broadcast + dev $interface
}
}
test "$cmd" = "del" && {
echo "# Removing ip address: $interface $addr"
$FWBDEBUG $IP addr $cmd $addr dev $interface || exit 1
}
$FWBDEBUG $IP link set $interface up
}
list_addresses_by_scope() {
interface=$1
scope=$2
ignore_list=$3
$IP addr ls dev $interface | \
awk -v IGNORED="$ignore_list" -v SCOPE="$scope" \
'BEGIN {
split(IGNORED,ignored_arr);
for (a in ignored_arr) {ignored_dict[ignored_arr[a]]=1;}
}
(/inet |inet6 / && $0 ~ SCOPE && !($2 in ignored_dict)) {print $2;}' | \
while read addr; do
echo "${addr}@$interface"
done | sort
}
update_addresses_of_interface() {
ignore_list=$2
set $1
interface=$1
shift
FWB_ADDRS=$(
for addr in $*; do
echo "${addr}@$interface"
done | sort
)
CURRENT_ADDRS_ALL_SCOPES=""
CURRENT_ADDRS_GLOBAL_SCOPE=""
$IP link show dev $interface >/dev/null 2>&1 && {
CURRENT_ADDRS_ALL_SCOPES=$(list_addresses_by_scope $interface 'scope .*' "$ignore_list")
CURRENT_ADDRS_GLOBAL_SCOPE=$(list_addresses_by_scope $interface 'scope global' "$ignore_list")
} || {
echo "# Interface $interface does not exist"
# Stop the script if we are not in test mode
test -z "$FWBDEBUG" && exit 1
}
diff_intf missing_address "$FWB_ADDRS" "$CURRENT_ADDRS_ALL_SCOPES" add
diff_intf missing_address "$CURRENT_ADDRS_GLOBAL_SCOPE" "$FWB_ADDRS" del
}
clear_addresses_except_known_interfaces() {
$IP link show | sed 's/://g' | awk -v IGNORED="$*" \
'BEGIN {
split(IGNORED,ignored_arr);
for (a in ignored_arr) {ignored_dict[ignored_arr[a]]=1;}
}
(/state/ && !($2 in ignored_dict)) {print $2;}' | \
while read intf; do
echo "# Removing addresses not configured in fwbuilder from interface $intf"
$FWBDEBUG $IP addr flush dev $intf scope global
$FWBDEBUG $IP link set $intf down
done
}
check_file() {
test -r "$2" || {
echo "Can not find file $2 referenced by address table object $1"
exit 1
}
}
check_run_time_address_table_files() {
:
}
load_modules() {
:
}
verify_interfaces() {
:
echo "Verifying interfaces: eth0 eth2"
for i in eth0 eth2 ; do
$IP link show "$i" > /dev/null 2>&1 || {
log "Interface $i does not exist"
exit 1
}
done
}
prolog_commands() {
echo "Running prolog script"
}
epilog_commands() {
echo "Running epilog script"
}
run_epilog_and_exit() {
epilog_commands
exit $1
}
configure_interfaces() {
:
# Configure interfaces
update_addresses_of_interface "eth0 192.168.1.1/24" ""
update_addresses_of_interface "eth2 192.168.2.1/24" ""
}
script_body() {
echo 30 > /proc/sys/net/ipv4/tcp_fin_timeout
echo 1800 > /proc/sys/net/ipv4/tcp_keepalive_intvl
# ================ IPv4
(
echo '*filter'
# ================ Table 'filter', automatic rules
echo :INPUT DROP [0:0]
echo :FORWARD DROP [0:0]
echo :OUTPUT DROP [0:0]
# accept established sessions
echo "-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT "
echo "-A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT "
echo "-A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT "
# backup ssh access
echo "-A INPUT -p tcp -m tcp -s 192.168.1.1/255.255.255.255 --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT "
echo "-A OUTPUT -p tcp -m tcp -d 192.168.1.1/255.255.255.255 --sport 22 -m state --state ESTABLISHED,RELATED -j ACCEPT "
# drop TCP sessions opened prior firewall restart
echo "-A INPUT -p tcp -m tcp ! --tcp-flags SYN,RST,ACK SYN -m state --state NEW -j DROP "
echo "-A OUTPUT -p tcp -m tcp ! --tcp-flags SYN,RST,ACK SYN -m state --state NEW -j DROP "
echo "-A FORWARD -p tcp -m tcp ! --tcp-flags SYN,RST,ACK SYN -m state --state NEW -j DROP "
# drop packets that do not match any valid state
echo "-A OUTPUT -m state --state INVALID -j DROP "
echo "-A INPUT -m state --state INVALID -j DROP "
echo "-A FORWARD -m state --state INVALID -j DROP "
# ================ Table 'filter', rule set policy_2
#
# Rule policy_2 0 (eth2)
echo ":policy_2 - [0:0]"
echo "-A policy_2 -o eth2 -m state --state NEW -j ACCEPT "
#
# Rule policy_2 1 (global)
echo ":policy_2_1 - [0:0]"
echo "-A policy_2 -j policy_2_1 "
echo "-A policy_2_1 -j LOG "
echo "-A policy_2_1 -j DROP "
#
# ================ Table 'filter', rule set mangle_ruleset
#
# Rule mangle_ruleset 0 (global)
echo ":mangle_ruleset - [0:0]"
echo ":mangle_ruleset_0 - [0:0]"
echo "-A mangle_ruleset -j mangle_ruleset_0 "
echo "-A mangle_ruleset_0 -j LOG "
echo "-A mangle_ruleset_0 -j DROP "
#
# ================ Table 'filter', rule set Policy
#
# Rule 0 (ppp*)
# ppp clients get addresses on 10.1.1.0
echo ":In_RULE_0 - [0:0]"
echo "-A INPUT -i ppp+ -s ! 10.1.1.0/24 -j In_RULE_0 "
echo "-A FORWARD -i ppp+ -s ! 10.1.1.0/24 -j In_RULE_0 "
echo "-A In_RULE_0 -j LOG "
echo "-A In_RULE_0 -j DROP "
#
# Rule 1 (ppp*)
# ppp clients can not connect to the firewall
echo ":In_RULE_1 - [0:0]"
getinterfaces ppp | while read I; do
ivar=$(getInterfaceVarName $I)
getaddr $I $ivar
cmd="$"${ivar}_list
eval "addr_list=$cmd"
for addr in $addr_list
do
test -n "$addr" && echo "-A INPUT -i ppp+ -d $addr -j In_RULE_1 "
done
done
echo "-A In_RULE_1 -j LOG "
echo "-A In_RULE_1 -j DROP "
#
# Rule 2 (ppp*)
echo ":In_RULE_2 - [0:0]"
echo "-A INPUT -i ppp+ -j In_RULE_2 "
echo "-A In_RULE_2 -j LOG "
echo "-A In_RULE_2 -j DROP "
#
# Rule 3 (ppp*)
# ppp clients can only connect to the mail
# server and web proxy on DMZ
echo "-A FORWARD -i ppp+ -p tcp -m tcp -m multiport -d 192.168.2.10 --dports 25,3128 -m state --state NEW -j ACCEPT "
#
# Rule 4 (ppp*)
# ppp clients can not connect to
# anything else on DMZ and
# internal net
echo ":In_RULE_4 - [0:0]"
echo "-A INPUT -i ppp+ -d 192.168.1.0/24 -j In_RULE_4 "
echo "-A INPUT -i ppp+ -d 192.168.2.0/24 -j In_RULE_4 "
echo "-A FORWARD -i ppp+ -d 192.168.1.0/24 -j In_RULE_4 "
echo "-A FORWARD -i ppp+ -d 192.168.2.0/24 -j In_RULE_4 "
echo "-A In_RULE_4 -j LOG "
echo "-A In_RULE_4 -j DROP "
#
# Rule 5 (eth2)
echo ":In_RULE_5 - [0:0]"
echo "-A INPUT -i eth2 -s ! 192.168.2.0/24 -j In_RULE_5 "
echo "-A FORWARD -i eth2 -s ! 192.168.2.0/24 -j In_RULE_5 "
echo "-A In_RULE_5 -j LOG "
echo "-A In_RULE_5 -j DROP "
#
# Rule 6 (global)
# hostF has the same IP address as firewal.
echo ":RULE_6 - [0:0]"
echo "-A OUTPUT -p icmp -m icmp -d 192.168.1.1 --icmp-type 8/0 -m state --state NEW -j RULE_6 "
echo "-A INPUT -p icmp -m icmp -d 192.168.1.1 --icmp-type 8/0 -m state --state NEW -j RULE_6 "
echo "-A RULE_6 -j LOG "
echo "-A RULE_6 -j ACCEPT "
#
# Rule 7 (global)
echo ":Cid417C681B.0 - [0:0]"
echo "-A OUTPUT -p tcp -m tcp --dport 22 -m state --state NEW -j Cid417C681B.0 "
getinterfaces ppp | while read I; do
ivar=$(getInterfaceVarName $I)
getaddr $I $ivar
cmd="$"${ivar}_list
eval "addr_list=$cmd"
for addr in $addr_list
do
test -n "$addr" && echo "-A Cid417C681B.0 -d $addr -j ACCEPT "
done
done
echo "-A Cid417C681B.0 -d 192.168.1.1 -j ACCEPT "
echo "-A Cid417C681B.0 -d 192.168.2.1 -j ACCEPT "
echo "-A INPUT -p tcp -m tcp --dport 22 -m state --state NEW -j ACCEPT "
#
# Rule 8 (global)
getinterfaces ppp | while read I; do
ivar=$(getInterfaceVarName $I)
getaddr $I $ivar
cmd="$"${ivar}_list
eval "addr_list=$cmd"
for addr in $addr_list
do
test -n "$addr" && echo "-A OUTPUT -p tcp -m tcp -d $addr --dport 22 -m state --state NEW -j ACCEPT "
done
done
getinterfaces ppp | while read I; do
ivar=$(getInterfaceVarName $I)
getaddr $I $ivar
cmd="$"${ivar}_list
eval "addr_list=$cmd"
for addr in $addr_list
do
test -n "$addr" && echo "-A INPUT -p tcp -m tcp -d $addr --dport 22 -m state --state NEW -j ACCEPT "
done
done
#
# Rule 9 (global)
echo "-A OUTPUT -p tcp -m tcp -d 192.168.1.1 --dport 22 -m state --state NEW -j ACCEPT "
echo "-A INPUT -p tcp -m tcp -d 192.168.1.1 --dport 22 -m state --state NEW -j ACCEPT "
#
# Rule 10 (global)
echo "-A OUTPUT -p tcp -m tcp -m multiport -d 192.168.1.1 --dports 22,23 -m state --state NEW -j ACCEPT "
echo "-A INPUT -p tcp -m tcp -m multiport -d 192.168.1.1 --dports 22,23 -m state --state NEW -j ACCEPT "
#
# Rule 11 (global)
echo ":Cid417C6844.0 - [0:0]"
echo "-A OUTPUT -p tcp -m tcp -m multiport --dports 22,23 -m state --state NEW -j Cid417C6844.0 "
echo "-A Cid417C6844.0 -d 192.168.1.1 -j ACCEPT "
echo "-A Cid417C6844.0 -d 192.168.2.1 -j ACCEPT "
echo ":Cid417C6844.1 - [0:0]"
echo "-A INPUT -p tcp -m tcp -m multiport --dports 22,23 -m state --state NEW -j Cid417C6844.1 "
echo "-A Cid417C6844.1 -d 192.168.1.1 -j ACCEPT "
echo "-A Cid417C6844.1 -d 192.168.2.1 -j ACCEPT "
#
# Rule 12 (global)
echo ":Cid417C684F.0 - [0:0]"
echo "-A OUTPUT -p tcp -m tcp -m multiport --dports 22,23 -m state --state NEW -j Cid417C684F.0 "
echo ":RULE_12 - [0:0]"
echo "-A Cid417C684F.0 -d 192.168.1.1 -j RULE_12 "
echo "-A Cid417C684F.0 -d 192.168.2.1 -j RULE_12 "
echo ":Cid417C684F.1 - [0:0]"
echo "-A INPUT -p tcp -m tcp -m multiport --dports 22,23 -m state --state NEW -j Cid417C684F.1 "
echo "-A Cid417C684F.1 -d 192.168.1.1 -j RULE_12 "
echo "-A Cid417C684F.1 -d 192.168.2.1 -j RULE_12 "
echo "-A RULE_12 -j LOG "
echo "-A RULE_12 -j ACCEPT "
#
# Rule 13 (global)
# firewall is part of Any, so compiler should
# generate code in both FORWARD and
# OUTPUT chains
echo "-A OUTPUT -d 200.200.200.200 -m state --state NEW -j ACCEPT "
echo "-A FORWARD -d 200.200.200.200 -m state --state NEW -j ACCEPT "
#
# Rule 14 (global)
# firewall is part of Any, compiler should
# generate code for both FORWARD and
# INPUT chains
echo "-A INPUT -s 200.200.200.200 -m state --state NEW -j ACCEPT "
echo "-A FORWARD -s 200.200.200.200 -m state --state NEW -j ACCEPT "
#
# Rule 15 (global)
# because firewall has interface on network
# internal_net, compiler should generate code
# for both FORWARD and INPUT chains
echo "-A INPUT -s 192.168.1.10 -d 192.168.1.0/24 -m state --state NEW -j ACCEPT "
echo "-A FORWARD -s 192.168.1.10 -d 192.168.1.0/24 -m state --state NEW -j ACCEPT "
#
# Rule 16 (global)
echo ":Cid417C6878.0 - [0:0]"
echo "-A OUTPUT -d 200.200.200.200 -m state --state NEW -j Cid417C6878.0 "
echo "-A Cid417C6878.0 -s 192.168.1.0/24 -j ACCEPT "
echo "-A Cid417C6878.0 -s 192.168.2.0/24 -j ACCEPT "
echo ":Cid417C6878.1 - [0:0]"
echo "-A FORWARD -d 200.200.200.200 -m state --state NEW -j Cid417C6878.1 "
echo "-A Cid417C6878.1 -s 192.168.1.0/24 -j ACCEPT "
echo "-A Cid417C6878.1 -s 192.168.2.0/24 -j ACCEPT "
#
# Rule 17 (global)
# this rule should go to mangle table,
# since we also have default rule that goes to mangle (TCPMSS)
# and pure mangle ruleset, making sure all rules for
# mangle table end up with one COMMIT
echo "-A OUTPUT -m state --state NEW -j LOG "
echo "-A INPUT -m state --state NEW -j LOG "
echo "-A FORWARD -m state --state NEW -j LOG "
#
# Rule 18 (global)
echo "-A OUTPUT -j policy_2 "
echo "-A INPUT -j policy_2 "
echo "-A FORWARD -j policy_2 "
#
# Rule 20 (eth0)
echo "-A INPUT -i eth0 -j policy_2 "
echo "-A FORWARD -i eth0 -j policy_2 "
#
# Rule 22 (global)
# Automatically generated 'catch all' rule
echo ":RULE_22 - [0:0]"
echo "-A OUTPUT -j RULE_22 "
echo "-A INPUT -j RULE_22 "
echo "-A FORWARD -j RULE_22 "
echo "-A RULE_22 -j LOG "
echo "-A RULE_22 -j DROP "
#
echo COMMIT
echo '*mangle'
# ================ Table 'mangle', automatic rules
echo "-A FORWARD -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu"
# ================ Table 'mangle', rule set policy_2_mangle
#
# Rule policy_2_mangle 0 (eth2)
echo ":policy_2_mangle - [0:0]"
echo "-A policy_2_mangle -o eth2 -m state --state NEW -j ACCEPT "
#
# Rule policy_2_mangle 1 (global)
# SF bug report 3034628
# "iptables does not allow target REJECT in mangle table"
# firewall25:policy_2_mangle:1: error: Action Reject is not allowed in mangle table
echo ":policy_2_mangle_1 - [0:0]"
echo "-A policy_2_mangle -p tcp -m tcp --dport 70 -j policy_2_mangle_1 "
echo "-A policy_2_mangle_1 -j LOG "
#
# Rule policy_2_mangle 2 (global)
echo ":policy_2_mangle_2 - [0:0]"
echo "-A policy_2_mangle -j policy_2_mangle_2 "
echo "-A policy_2_mangle_2 -j LOG "
echo "-A policy_2_mangle_2 -j DROP "
#
# ================ Table 'mangle', rule set Policy
#
# Rule 17 (global)
# this rule should go to mangle table,
# since we also have default rule that goes to mangle (TCPMSS)
# and pure mangle ruleset, making sure all rules for
# mangle table end up with one COMMIT
echo "-A OUTPUT -m state --state NEW -j MARK --set-mark 10"
echo "-A PREROUTING -m state --state NEW -j MARK --set-mark 10"
#
# Rule 18 (global)
echo ":policy_2 - [0:0]"
echo "-A PREROUTING -j policy_2 "
echo "-A POSTROUTING -j policy_2 "
echo "-A FORWARD -j policy_2 "
#
# Rule 19 (global)
echo "-A PREROUTING -j policy_2_mangle "
echo "-A POSTROUTING -j policy_2_mangle "
echo "-A FORWARD -j policy_2_mangle "
#
# Rule 20 (eth0)
echo "-A PREROUTING -i eth0 -j policy_2 "
echo "-A FORWARD -i eth0 -j policy_2 "
#
# Rule 21 (eth0)
echo "-A PREROUTING -i eth0 -j policy_2_mangle "
echo "-A FORWARD -i eth0 -j policy_2_mangle "
#
echo COMMIT
echo '*nat'
# ================ Table 'nat', rule set NAT
echo :PREROUTING ACCEPT [0:0]
echo :POSTROUTING ACCEPT [0:0]
echo :OUTPUT ACCEPT [0:0]
#
# Rule 0 (NAT)
echo "-A POSTROUTING -o ppp+ -s 192.168.1.0/24 -j MASQUERADE "
echo "-A POSTROUTING -o eth2 -s 192.168.1.0/24 -j SNAT --to-source 192.168.2.1 "
#
# Rule 1 (NAT)
echo "-A POSTROUTING -o eth+ -s 192.168.1.0/24 -j SNAT --to-source 22.22.22.23 "
echo "-A POSTROUTING -o ppp+ -s 192.168.1.0/24 -j SNAT --to-source 22.22.22.23 "
#
# Rule 2 (NAT)
getinterfaces ppp | while read I; do
ivar=$(getInterfaceVarName $I)
getaddr $I $ivar
cmd="$"${ivar}_list
eval "addr_list=$cmd"
for addr in $addr_list
do
test -n "$addr" && echo "-A PREROUTING -p tcp -m tcp -d $addr --dport 22 -j DNAT --to-destination 192.168.1.10:22 "
done
done
echo "-A PREROUTING -p tcp -m tcp -d 192.168.1.1 --dport 22 -j DNAT --to-destination 192.168.1.10:22 "
echo "-A PREROUTING -p tcp -m tcp -d 192.168.2.1 --dport 22 -j DNAT --to-destination 192.168.1.10:22 "
#
# Rule 3 (NAT)
echo "-A PREROUTING -s 192.168.1.0/24 -d ! 200.200.200.200 -j DNAT --to-destination 192.168.2.10 "
echo "-A POSTROUTING -o eth2 -s 192.168.1.0/24 -d 192.168.2.10 -j SNAT --to-source 192.168.2.1 "
#
echo COMMIT
) | $IPTABLES_RESTORE; IPTABLES_RESTORE_RES=$?
test $IPTABLES_RESTORE_RES != 0 && run_epilog_and_exit $IPTABLES_RESTORE_RES
}
ip_forward() {
:
}
reset_all() {
:
reset_iptables_v4
}
block_action() {
reset_all
}
stop_action() {
reset_all
$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -P INPUT ACCEPT
$IPTABLES -P FORWARD ACCEPT
}
check_iptables() {
IP_TABLES="$1"
[ ! -e $IP_TABLES ] && return 151
NF_TABLES=$(cat $IP_TABLES 2>/dev/null)
[ -z "$NF_TABLES" ] && return 152
return 0
}
status_action() {
check_iptables "/proc/net/ip_tables_names"
ret_ipv4=$?
check_iptables "/proc/net/ip6_tables_names"
ret_ipv6=$?
[ $ret_ipv4 -eq 0 -o $ret_ipv6 -eq 0 ] && return 0
[ $ret_ipv4 -eq 151 -o $ret_ipv6 -eq 151 ] && {
echo "iptables modules are not loaded"
}
[ $ret_ipv4 -eq 152 -o $ret_ipv6 -eq 152 ] && {
echo "Firewall is not configured"
}
exit 3
}
# See how we were called.
# For backwards compatibility missing argument is equivalent to 'start'
cmd=$1
test -z "$cmd" && {
cmd="start"
}
case "$cmd" in
start)
log "Activating firewall script generated Fri Jun 3 17:27:40 2011 by vadim"
check_tools
prolog_commands
check_run_time_address_table_files
load_modules "nat "
configure_interfaces
verify_interfaces
script_body
ip_forward
epilog_commands
RETVAL=$?
;;
stop)
stop_action
RETVAL=$?
;;
status)
status_action
RETVAL=$?
;;
block)
block_action
RETVAL=$?
;;
reload)
$0 stop
$0 start
RETVAL=$?
;;
interfaces)
configure_interfaces
RETVAL=$?
;;
test_interfaces)
FWBDEBUG="echo"
configure_interfaces
RETVAL=$?
;;
*)
echo "Usage $0 [start|stop|status|block|reload|interfaces|test_interfaces]"
;;
esac
exit $RETVAL
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