#!/bin/sh # # This is automatically generated file. DO NOT MODIFY ! # # Firewall Builder fwb_ipt v4.2.0.3469 # # Generated Thu Feb 10 12:08:05 2011 PST by vadim # # files: * heartbeat_cluster_1_d_linux-2-d.fw firewall.sh # # Compiled for iptables (any version) # # This firewall has two interfaces. Eth0 faces outside and has a dynamic address; eth1 faces inside. # Policy includes basic rules to permit unrestricted outbound access and anti-spoofing rules. Access to the firewall is permitted only from internal network and only using SSH. The firewall uses one of the machines on internal network for DNS. Internal network is configured with address 192.168.1.0/255.255.255.0 # heartbeat_cluster_1_d:NAT:4: error: Can not build rule using dynamic interface 'eth0' of the object 'linux-1-d' because its address in unknown. # heartbeat_cluster_1_d:NAT:: warning: Empty inet address in object id57982X27834 # heartbeat_cluster_1_d:Policy:7: error: Can not build rule using dynamic interface 'eth0' of the object 'linux-1-d' because its address in unknown. # heartbeat_cluster_1_d:Policy:7: error: Can not build rule using dynamic interface 'eth0' of the object 'linux-1-d' because its address in unknown. # linux-2-d::: warning: Can not add virtual address for object eth0 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 "$1" test -x "$LOGGER" && $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\"" } getaddr() { getaddr_internal $1 $2 "-4" } getaddr6() { getaddr_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 $PGM /dev/null 2>&1; test $? = 127 && { echo "$PGM not found" exit 1 } } check_tools() { find_program $IPTABLES find_program $MODPROBE 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 } $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() { : OPTS=$1 MODULES_DIR="/lib/modules/`uname -r`/kernel/net/" MODULES=$(find $MODULES_DIR -name '*conntrack*' \! -name '*ipv6*'|sed -e 's/^.*\///' -e 's/\([^\.]\)\..*/\1/') echo $OPTS | grep -q nat && { MODULES="$MODULES $(find $MODULES_DIR -name '*nat*'|sed -e 's/^.*\///' -e 's/\([^\.]\)\..*/\1/')" } echo $OPTS | grep -q ipv6 && { MODULES="$MODULES $(find $MODULES_DIR -name nf_conntrack_ipv6|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 } verify_interfaces() { : echo "Verifying interfaces: eth0 eth1 lo eth2 eth2.100" for i in eth0 eth1 lo eth2 eth2.100 ; 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 "eth1 192.168.1.2/24" "192.168.1.254/24" update_addresses_of_interface "lo 127.0.0.1/8" "" update_addresses_of_interface "eth2.100 172.20.0.2/24" "" getaddr eth0 i_eth0 getaddr6 eth0 i_eth0_v6 getaddr eth0 i_eth0 getaddr6 eth0 i_eth0_v6 } script_body() { # ================ IPv4 # ================ Table 'filter', automatic rules # accept established sessions $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 # ================ Table 'nat', rule set NAT # # Rule 0 (NAT) # echo "Rule 0 (NAT)" # $IPTABLES -t nat -A POSTROUTING -o eth0 -s 192.168.1.0/24 -j MASQUERADE # # Rule 1 (NAT) # echo "Rule 1 (NAT)" # for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -t nat -A POSTROUTING -o eth0 -s 192.168.1.0/24 -j SNAT --to-source $i_eth0 done # # Rule 2 (NAT) # echo "Rule 2 (NAT)" # for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -t nat -A POSTROUTING -o eth0 -s 192.168.1.0/24 -j SNAT --to-source $i_eth0 --random done # # Rule 3 (NAT) # echo "Rule 3 (NAT)" # for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -t nat -A PREROUTING -d $i_eth0 -j DNAT --to-destination 192.168.1.100 done # # Rule 4 (NAT) # echo "Rule 4 (NAT)" # # heartbeat_cluster_1_d:NAT:4: error: Can not build rule using dynamic interface 'eth0' of the object 'linux-1-d' because its address in unknown. $IPTABLES -t nat -A PREROUTING -d -j DNAT --to-destination 192.168.1.100 # ================ Table 'filter', rule set Policy # # Rule -8 heartbeat (automatic) # echo "Rule -8 heartbeat (automatic)" # $IPTABLES -A OUTPUT -o eth2.100 -p udp -m udp -d 224.0.10.100 --dport 694 -j ACCEPT # # Rule -7 heartbeat (automatic) # echo "Rule -7 heartbeat (automatic)" # $IPTABLES -A INPUT -i eth2.100 -p udp -m udp -s 172.20.0.1 -d 224.0.10.100 --dport 694 -j ACCEPT # # Rule -6 heartbeat (automatic) # echo "Rule -6 heartbeat (automatic)" # $IPTABLES -A OUTPUT -o eth1 -p udp -m udp -d 224.0.10.100 --dport 694 -j ACCEPT # # Rule -5 heartbeat (automatic) # echo "Rule -5 heartbeat (automatic)" # $IPTABLES -A INPUT -i eth1 -p udp -m udp -s 192.168.1.1 -d 224.0.10.100 --dport 694 -j ACCEPT # # Rule -4 heartbeat (automatic) # echo "Rule -4 heartbeat (automatic)" # $IPTABLES -A OUTPUT -o eth0 -p udp -m udp -d 224.0.10.100 --dport 694 -j ACCEPT # # Rule -3 heartbeat (automatic) # echo "Rule -3 heartbeat (automatic)" # $IPTABLES -A INPUT -i eth0 -p udp -m udp -d 224.0.10.100 --dport 694 -j ACCEPT # # Rule -2 CONNTRACK (automatic) # echo "Rule -2 CONNTRACK (automatic)" # $IPTABLES -A OUTPUT -o eth0 -p udp -m udp -d 225.0.0.50 --dport 3780 -j ACCEPT # # Rule -1 CONNTRACK (automatic) # echo "Rule -1 CONNTRACK (automatic)" # $IPTABLES -A INPUT -i eth0 -p udp -m udp -d 225.0.0.50 --dport 3780 -j ACCEPT # # Rule 0 (eth0) # echo "Rule 0 (eth0)" # # anti spoofing rule $IPTABLES -N In_RULE_0 for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -A INPUT -i eth0 -s $i_eth0 -m state --state NEW -j In_RULE_0 done $IPTABLES -A INPUT -i eth0 -s 172.20.0.2 -m state --state NEW -j In_RULE_0 $IPTABLES -A INPUT -i eth0 -s 192.168.1.2 -m state --state NEW -j In_RULE_0 $IPTABLES -A INPUT -i eth0 -s 192.168.1.254 -m state --state NEW -j In_RULE_0 $IPTABLES -A INPUT -i eth0 -s 192.168.1.0/24 -m state --state NEW -j In_RULE_0 for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -A FORWARD -i eth0 -s $i_eth0 -m state --state NEW -j In_RULE_0 done $IPTABLES -A FORWARD -i eth0 -s 172.20.0.2 -m state --state NEW -j In_RULE_0 $IPTABLES -A FORWARD -i eth0 -s 192.168.1.2 -m state --state NEW -j In_RULE_0 $IPTABLES -A FORWARD -i eth0 -s 192.168.1.254 -m state --state NEW -j In_RULE_0 $IPTABLES -A FORWARD -i eth0 -s 192.168.1.0/24 -m state --state NEW -j In_RULE_0 $IPTABLES -A In_RULE_0 -j LOG --log-level info --log-prefix "RULE 0 -- DENY " $IPTABLES -A In_RULE_0 -j DROP # # Rule 1 (lo) # echo "Rule 1 (lo)" # $IPTABLES -A INPUT -i lo -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o lo -m state --state NEW -j ACCEPT # # Rule 2 (global) # echo "Rule 2 (global)" # # SSH Access to firewall is permitted # only from internal network $IPTABLES -A INPUT -p tcp -m tcp -s 192.168.1.0/24 --dport 22 -m state --state NEW -j ACCEPT # # Rule 3 (global) # echo "Rule 3 (global)" # # Firewall uses one of the machines # on internal network for DNS $IPTABLES -N RULE_3 $IPTABLES -A OUTPUT -p tcp -m tcp -d 192.168.1.0/24 --dport 53 -m state --state NEW -j RULE_3 $IPTABLES -A OUTPUT -p udp -m udp -d 192.168.1.0/24 --dport 53 -m state --state NEW -j RULE_3 $IPTABLES -A RULE_3 -j LOG --log-level info --log-prefix "RULE 3 -- ACCEPT " $IPTABLES -A RULE_3 -j ACCEPT # # Rule 4 (global) # echo "Rule 4 (global)" # $IPTABLES -A OUTPUT -p tcp -m tcp -d 192.168.1.0/24 --dport 22 -m state --state NEW -j ACCEPT # # Rule 5 (global) # echo "Rule 5 (global)" # # fw is part of any and networks for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -A OUTPUT -p tcp -m tcp -s $i_eth0 -d 192.168.1.0/24 --dport 22 -m state --state NEW -j ACCEPT done # # Rule 6 (global) # echo "Rule 6 (global)" # # fw is NOT part of any and networks for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -A OUTPUT -p tcp -m tcp -s $i_eth0 -d 192.168.1.0/24 --dport 22 -m state --state NEW -j ACCEPT done # # Rule 7 (global) # echo "Rule 7 (global)" # for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -A OUTPUT -p tcp -m tcp -s $i_eth0 -d 192.168.1.0/24 --dport 22 -m state --state NEW -j ACCEPT done # # Rule 8 (global) # echo "Rule 8 (global)" # # fw is part of any $IPTABLES -N Cid307958X52019.0 $IPTABLES -A OUTPUT -p tcp -m tcp -d 192.168.1.0/24 --dport 22 -m state --state NEW -j Cid307958X52019.0 $IPTABLES -A Cid307958X52019.0 -s 192.168.1.2 -j ACCEPT $IPTABLES -A Cid307958X52019.0 -s 192.168.1.254 -j ACCEPT # # Rule 9 (global) # echo "Rule 9 (global)" # # fw is not part of any $IPTABLES -N Cid625000X52019.0 $IPTABLES -A OUTPUT -p tcp -m tcp -d 192.168.1.0/24 --dport 22 -m state --state NEW -j Cid625000X52019.0 $IPTABLES -A Cid625000X52019.0 -s 192.168.1.2 -j ACCEPT $IPTABLES -A Cid625000X52019.0 -s 192.168.1.254 -j ACCEPT # # Rule 10 (global) # echo "Rule 10 (global)" # # fw is not part of any $IPTABLES -A OUTPUT -p tcp -m tcp -s 192.168.1.254 -d 192.168.1.0/24 --dport 22 -m state --state NEW -j ACCEPT # # Rule 11 (global) # echo "Rule 11 (global)" # $IPTABLES -A OUTPUT -p tcp -m tcp -s 192.168.1.2 -d 192.168.1.0/24 --dport 22 -m state --state NEW -j ACCEPT $IPTABLES -A INPUT -p tcp -m tcp -s 192.168.1.1 -d 192.168.1.0/24 --dport 22 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -p tcp -m tcp -s 192.168.1.1 -d 192.168.1.0/24 --dport 22 -m state --state NEW -j ACCEPT # # Rule 12 (global) # echo "Rule 12 (global)" # # All other attempts to connect to # the firewall are denied and logged $IPTABLES -N RULE_12 for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -A OUTPUT -d $i_eth0 -j RULE_12 done $IPTABLES -A OUTPUT -d 172.20.0.2 -j RULE_12 $IPTABLES -A OUTPUT -d 192.168.1.2 -j RULE_12 $IPTABLES -A OUTPUT -d 192.168.1.254 -j RULE_12 $IPTABLES -A INPUT -j RULE_12 $IPTABLES -A RULE_12 -j LOG --log-level info --log-prefix "RULE 12 -- DENY " $IPTABLES -A RULE_12 -j DROP # # Rule 13 (eth0) # echo "Rule 13 (eth0)" # $IPTABLES -A INPUT -i ! eth0 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -i ! eth0 -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o ! eth0 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -o ! eth0 -m state --state NEW -j ACCEPT # # Rule 14 (eth0,eth1) # echo "Rule 14 (eth0,eth1)" # $IPTABLES -A INPUT -i eth2 -m state --state NEW -j ACCEPT $IPTABLES -A INPUT -i eth2.100 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -i eth2 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -i eth2.100 -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o eth2 -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o eth2.100 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -o eth2 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -o eth2.100 -m state --state NEW -j ACCEPT # # Rule 15 (eth0) # echo "Rule 15 (eth0)" # # fw is part of any is OFF $IPTABLES -A FORWARD -i ! eth0 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -o ! eth0 -m state --state NEW -j ACCEPT # # Rule 16 (eth0,eth1) # echo "Rule 16 (eth0,eth1)" # # fw is part of any is OFF $IPTABLES -A FORWARD -i eth2 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -i eth2.100 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -o eth2 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -o eth2.100 -m state --state NEW -j ACCEPT # # Rule 17 (eth0) # echo "Rule 17 (eth0)" # # fw is part of any is OFF $IPTABLES -A FORWARD -i ! eth0 -m state --state NEW -j ACCEPT # # Rule 18 (eth0,eth1) # echo "Rule 18 (eth0,eth1)" # # fw is part of any is OFF $IPTABLES -A FORWARD -i eth2 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -i eth2.100 -m state --state NEW -j ACCEPT # # Rule 19 (eth0) # echo "Rule 19 (eth0)" # # fw is part of any is OFF $IPTABLES -A FORWARD -o ! eth0 -m state --state NEW -j ACCEPT # # Rule 20 (eth0,eth1) # echo "Rule 20 (eth0,eth1)" # # fw is part of any is OFF $IPTABLES -A FORWARD -o eth2 -m state --state NEW -j ACCEPT $IPTABLES -A FORWARD -o eth2.100 -m state --state NEW -j ACCEPT # # Rule 21 (eth0) # echo "Rule 21 (eth0)" # $IPTABLES -A INPUT -i ! eth0 -m state --state NEW -j ACCEPT for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -A OUTPUT -o ! eth0 -d $i_eth0 -m state --state NEW -j ACCEPT done $IPTABLES -A OUTPUT -o ! eth0 -d 172.20.0.2 -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o ! eth0 -d 192.168.1.2 -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o ! eth0 -d 192.168.1.254 -m state --state NEW -j ACCEPT # # Rule 22 (eth0,eth1) # echo "Rule 22 (eth0,eth1)" # $IPTABLES -A INPUT -i eth2 -m state --state NEW -j ACCEPT $IPTABLES -A INPUT -i eth2.100 -m state --state NEW -j ACCEPT for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -A OUTPUT -o eth2 -d $i_eth0 -m state --state NEW -j ACCEPT done $IPTABLES -A OUTPUT -o eth2 -d 172.20.0.2 -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o eth2 -d 192.168.1.2 -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o eth2 -d 192.168.1.254 -m state --state NEW -j ACCEPT for i_eth0 in $i_eth0_list do test -n "$i_eth0" && $IPTABLES -A OUTPUT -o eth2.100 -d $i_eth0 -m state --state NEW -j ACCEPT done $IPTABLES -A OUTPUT -o eth2.100 -d 172.20.0.2 -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o eth2.100 -d 192.168.1.2 -m state --state NEW -j ACCEPT $IPTABLES -A OUTPUT -o eth2.100 -d 192.168.1.254 -m state --state NEW -j ACCEPT # # Rule 23 (eth0) # echo "Rule 23 (eth0)" # # fw is part of any is OFF $IPTABLES -A INPUT -i ! eth0 -m state --state NEW -j ACCEPT # # Rule 24 (eth0,eth1) # echo "Rule 24 (eth0,eth1)" # # fw is part of any is OFF $IPTABLES -A INPUT -i eth2 -m state --state NEW -j ACCEPT $IPTABLES -A INPUT -i eth2.100 -m state --state NEW -j ACCEPT } ip_forward() { : echo 1 > /proc/sys/net/ipv4/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 "$cmd" in start) log "Activating firewall script generated Thu Feb 10 12:08:05 2011 by vadim" check_tools prolog_commands check_run_time_address_table_files load_modules "nat " configure_interfaces verify_interfaces reset_all script_body ip_forward epilog_commands RETVAL=$? ;; 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