#!/bin/sh # # This is automatically generated file. DO NOT MODIFY ! # # Firewall Builder fwb_ipt v5.0.0.3547 # # Generated Fri Jun 3 17:28:14 2011 PDT by vadim # # files: * firewall39.fw /etc/fw/firewall39.fw # # Compiled for iptables (any version) # # testing branching rules # normal script mode (not using iptables-restore) # firewall39:Policy:14: warning: Rule branches to rule set rule6_branch which branches back to it, creating a loop # firewall39:rule6_branch:0: warning: Rule branches to rule set Policy which branches back to it, creating a loop 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 $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 || 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() { : 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() { : } 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 192.168.1.22/24" "" update_addresses_of_interface "eth1 22.22.23.22/24" "" 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 # ================ 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 -s 22.22.23.22 -j ACCEPT $IPTABLES -t nat -A POSTROUTING -s 192.168.1.22 -j ACCEPT $IPTABLES -t nat -A POSTROUTING -s 192.168.2.1 -j ACCEPT $IPTABLES -t nat -A OUTPUT -j ACCEPT $IPTABLES -t nat -A POSTROUTING -s 192.168.1.0/24 -j ACCEPT $IPTABLES -t nat -A PREROUTING -s 192.168.1.0/24 -j ACCEPT # ================ Table 'mangle', rule set Policy # # Rule 7 (global) # echo "Rule 7 (global)" # # green rules branch # also in mangle table $IPTABLES -N rule0_branch -t mangle $IPTABLES -t mangle -A PREROUTING -p 50 -j rule0_branch $IPTABLES -t mangle -A PREROUTING -p ah -j rule0_branch $IPTABLES -t mangle -A POSTROUTING -p 50 -j rule0_branch $IPTABLES -t mangle -A POSTROUTING -p ah -j rule0_branch $IPTABLES -t mangle -A FORWARD -p 50 -j rule0_branch $IPTABLES -t mangle -A FORWARD -p ah -j rule0_branch # # Rule 8 (global) # echo "Rule 8 (global)" # $IPTABLES -N rule1_branch -t mangle $IPTABLES -t mangle -A PREROUTING -p 50 -j rule1_branch $IPTABLES -t mangle -A PREROUTING -p ah -j rule1_branch $IPTABLES -t mangle -A POSTROUTING -p 50 -j rule1_branch $IPTABLES -t mangle -A POSTROUTING -p ah -j rule1_branch $IPTABLES -t mangle -A FORWARD -p 50 -j rule1_branch $IPTABLES -t mangle -A FORWARD -p ah -j rule1_branch # # Rule 9 (global) # echo "Rule 9 (global)" # $IPTABLES -N Cid464C29BB3999.0 -t mangle $IPTABLES -t mangle -A PREROUTING -s ! 192.168.1.0/24 -j Cid464C29BB3999.0 $IPTABLES -N rule2_branch -t mangle $IPTABLES -t mangle -A Cid464C29BB3999.0 -p 50 -j rule2_branch $IPTABLES -t mangle -A Cid464C29BB3999.0 -p ah -j rule2_branch $IPTABLES -N Cid464C29BB3999.1 -t mangle $IPTABLES -t mangle -A POSTROUTING -s ! 192.168.1.0/24 -j Cid464C29BB3999.1 $IPTABLES -t mangle -A Cid464C29BB3999.1 -p 50 -j rule2_branch $IPTABLES -t mangle -A Cid464C29BB3999.1 -p ah -j rule2_branch $IPTABLES -N Cid464C29BB3999.2 -t mangle $IPTABLES -t mangle -A FORWARD -s ! 192.168.1.0/24 -j Cid464C29BB3999.2 $IPTABLES -t mangle -A Cid464C29BB3999.2 -p 50 -j rule2_branch $IPTABLES -t mangle -A Cid464C29BB3999.2 -p ah -j rule2_branch # # Rule 10 (eth1) # echo "Rule 10 (eth1)" # $IPTABLES -N rule3_branch -t mangle $IPTABLES -t mangle -A PREROUTING -i eth1 -p 50 -j rule3_branch $IPTABLES -t mangle -A PREROUTING -i eth1 -p ah -j rule3_branch $IPTABLES -t mangle -A FORWARD -i eth1 -p 50 -j rule3_branch $IPTABLES -t mangle -A FORWARD -i eth1 -p ah -j rule3_branch # # Rule 11 (eth1) # echo "Rule 11 (eth1)" # $IPTABLES -t mangle -A POSTROUTING -o eth1 -p 50 -j rule3_branch $IPTABLES -t mangle -A POSTROUTING -o eth1 -p ah -j rule3_branch $IPTABLES -t mangle -A FORWARD -o eth1 -p 50 -j rule3_branch $IPTABLES -t mangle -A FORWARD -o eth1 -p ah -j rule3_branch # # Rule 12 (global) # echo "Rule 12 (global)" # $IPTABLES -N rule4_branch -t mangle $IPTABLES -t mangle -A PREROUTING -p tcp -m tcp -d 192.168.2.10 --dport 80 -j rule4_branch $IPTABLES -t mangle -A POSTROUTING -p tcp -m tcp -d 192.168.2.10 --dport 80 -j rule4_branch $IPTABLES -t mangle -A FORWARD -p tcp -m tcp -d 192.168.2.10 --dport 80 -j rule4_branch # # Rule 13 (global) # echo "Rule 13 (global)" # $IPTABLES -N rule5_branch -t mangle $IPTABLES -t mangle -A PREROUTING -s 192.168.1.0/24 -j rule5_branch $IPTABLES -t mangle -A POSTROUTING -s 192.168.1.0/24 -j rule5_branch $IPTABLES -t mangle -A FORWARD -s 192.168.1.0/24 -j rule5_branch # ================ Table 'filter', rule set rule_4_0_branch # # Rule rule_4_0_branch 0 (eth2) # echo "Rule rule_4_0_branch 0 (eth2)" # $IPTABLES -N rule_4_0_branch $IPTABLES -A rule_4_0_branch -o eth2 -m state --state NEW -j ACCEPT # # Rule rule_4_0_branch 1 (global) # echo "Rule rule_4_0_branch 1 (global)" # $IPTABLES -N rule_4_0_branch_1 $IPTABLES -A rule_4_0_branch -j rule_4_0_branch_1 $IPTABLES -A rule_4_0_branch_1 -j LOG --log-level info --log-prefix "RULE 1 -- DENY " $IPTABLES -A rule_4_0_branch_1 -j DROP # ================ Table 'filter', rule set rule_4_1_branch # # Rule rule_4_1_branch 0 (eth2) # echo "Rule rule_4_1_branch 0 (eth2)" # $IPTABLES -N rule_4_1_branch $IPTABLES -A rule_4_1_branch -o eth2 -m state --state NEW -j ACCEPT # # Rule rule_4_1_branch 1 (global) # echo "Rule rule_4_1_branch 1 (global)" # $IPTABLES -N rule_4_1_branch_1 $IPTABLES -A rule_4_1_branch -j rule_4_1_branch_1 $IPTABLES -A rule_4_1_branch_1 -j LOG --log-level info --log-prefix "RULE 1 -- DENY " $IPTABLES -A rule_4_1_branch_1 -j DROP # ================ Table 'filter', rule set rule0_branch # # Rule rule0_branch 0 (global) # echo "Rule rule0_branch 0 (global)" # $IPTABLES -N rule0_branch $IPTABLES -N rule0_branch_0 $IPTABLES -A rule0_branch -m state --state NEW -j rule0_branch_0 $IPTABLES -A rule0_branch_0 -j LOG --log-level info --log-prefix "RULE 0 -- ACCEPT " $IPTABLES -A rule0_branch_0 -j ACCEPT # ================ Table 'filter', rule set rule1_branch # # Rule rule1_branch 0 (global) # echo "Rule rule1_branch 0 (global)" # $IPTABLES -N rule1_branch $IPTABLES -N rule1_branch_0 $IPTABLES -A rule1_branch -d 192.168.2.10 -j rule1_branch_0 $IPTABLES -A rule1_branch_0 -j LOG --log-level info --log-prefix "RULE 0 -- DENY " $IPTABLES -A rule1_branch_0 -j DROP # # Rule rule1_branch 1 (global) # echo "Rule rule1_branch 1 (global)" # $IPTABLES -A rule1_branch -m state --state NEW -j ACCEPT # ================ Table 'filter', rule set rule2_branch # # Rule rule2_branch 0 (global) # echo "Rule rule2_branch 0 (global)" # $IPTABLES -N rule2_branch $IPTABLES -N rule2_branch_0 $IPTABLES -A rule2_branch -d ! 192.168.2.10 -j rule2_branch_0 $IPTABLES -A rule2_branch_0 -j LOG --log-level info --log-prefix "RULE 0 -- DENY " $IPTABLES -A rule2_branch_0 -j DROP # # Rule rule2_branch 1 (global) # echo "Rule rule2_branch 1 (global)" # $IPTABLES -A rule2_branch -s 222.222.222.0/24 -d 192.168.2.10 -m state --state NEW -j ACCEPT # # Rule rule2_branch 2 (global) # echo "Rule rule2_branch 2 (global)" # $IPTABLES -N rule2_branch_2 $IPTABLES -A rule2_branch -j rule2_branch_2 $IPTABLES -A rule2_branch_2 -j LOG --log-level info --log-prefix "RULE 2 -- DENY " $IPTABLES -A rule2_branch_2 -j DROP # ================ Table 'filter', rule set rule3_branch # # Rule rule3_branch 0 (eth1) # echo "Rule rule3_branch 0 (eth1)" # $IPTABLES -N rule3_branch $IPTABLES -A rule3_branch -i eth1 -d 22.22.23.22 -m state --state NEW -j ACCEPT $IPTABLES -A rule3_branch -i eth1 -d 192.168.1.22 -m state --state NEW -j ACCEPT $IPTABLES -A rule3_branch -i eth1 -d 192.168.2.1 -m state --state NEW -j ACCEPT # # Rule rule3_branch 1 (global) # echo "Rule rule3_branch 1 (global)" # $IPTABLES -N rule3_branch_1 $IPTABLES -A rule3_branch -j rule3_branch_1 $IPTABLES -A rule3_branch_1 -j LOG --log-level info --log-prefix "RULE 1 -- DENY " $IPTABLES -A rule3_branch_1 -j DROP # ================ Table 'filter', rule set rule4_branch # # Rule rule4_branch 0 (eth1) # echo "Rule rule4_branch 0 (eth1)" # $IPTABLES -N rule4_branch $IPTABLES -N In_rule4_branch_0 $IPTABLES -A rule4_branch -i eth1 -j In_rule4_branch_0 $IPTABLES -A In_rule4_branch_0 -j LOG --log-level info --log-prefix "RULE 0 -- BRANCH " $IPTABLES -A In_rule4_branch_0 -j rule_4_0_branch # # Rule rule4_branch 1 (eth0) # echo "Rule rule4_branch 1 (eth0)" # $IPTABLES -N In_rule4_branch_1 $IPTABLES -A rule4_branch -i eth0 -j In_rule4_branch_1 $IPTABLES -A In_rule4_branch_1 -j LOG --log-level info --log-prefix "RULE 1 -- BRANCH " $IPTABLES -A In_rule4_branch_1 -j rule_4_1_branch # ================ Table 'filter', rule set rule6_branch # # Rule rule6_branch 0 (global) # echo "Rule rule6_branch 0 (global)" # $IPTABLES -N rule6_branch $IPTABLES -N Policy $IPTABLES -A rule6_branch -j Policy # ================ Table 'filter', rule set Policy # # Rule 0 (global) # echo "Rule 0 (global)" # $IPTABLES -A OUTPUT -p 50 -j rule0_branch $IPTABLES -A OUTPUT -p ah -j rule0_branch $IPTABLES -A INPUT -p 50 -j rule0_branch $IPTABLES -A INPUT -p ah -j rule0_branch $IPTABLES -A FORWARD -p 50 -j rule0_branch $IPTABLES -A FORWARD -p ah -j rule0_branch # # Rule 1 (global) # echo "Rule 1 (global)" # $IPTABLES -N RULE_1 $IPTABLES -A OUTPUT -p 50 -j RULE_1 $IPTABLES -A OUTPUT -p ah -j RULE_1 $IPTABLES -A INPUT -p 50 -j RULE_1 $IPTABLES -A INPUT -p ah -j RULE_1 $IPTABLES -A FORWARD -p 50 -j RULE_1 $IPTABLES -A FORWARD -p ah -j RULE_1 $IPTABLES -A RULE_1 -j LOG --log-level info --log-prefix "RULE 1 -- BRANCH " $IPTABLES -A RULE_1 -j rule1_branch # # Rule 2 (global) # echo "Rule 2 (global)" # $IPTABLES -N Cid445DA31230753.0 $IPTABLES -A OUTPUT -s ! 192.168.1.0/24 -j Cid445DA31230753.0 $IPTABLES -N RULE_2 $IPTABLES -A Cid445DA31230753.0 -p 50 -j RULE_2 $IPTABLES -A Cid445DA31230753.0 -p ah -j RULE_2 $IPTABLES -N Cid445DA31230753.1 $IPTABLES -A INPUT -s ! 192.168.1.0/24 -j Cid445DA31230753.1 $IPTABLES -A Cid445DA31230753.1 -p 50 -j RULE_2 $IPTABLES -A Cid445DA31230753.1 -p ah -j RULE_2 $IPTABLES -N Cid445DA31230753.2 $IPTABLES -A OUTPUT -s ! 192.168.1.0/24 -j Cid445DA31230753.2 $IPTABLES -A Cid445DA31230753.2 -p 50 -j RULE_2 $IPTABLES -A Cid445DA31230753.2 -p ah -j RULE_2 $IPTABLES -N Cid445DA31230753.3 $IPTABLES -A FORWARD -s ! 192.168.1.0/24 -j Cid445DA31230753.3 $IPTABLES -A Cid445DA31230753.3 -p 50 -j RULE_2 $IPTABLES -A Cid445DA31230753.3 -p ah -j RULE_2 $IPTABLES -A RULE_2 -j LOG --log-level info --log-prefix "RULE 2 -- BRANCH " $IPTABLES -A RULE_2 -j rule2_branch # # Rule 3 (eth1) # echo "Rule 3 (eth1)" # $IPTABLES -A INPUT -i eth1 -p 50 -j rule3_branch $IPTABLES -A INPUT -i eth1 -p ah -j rule3_branch $IPTABLES -A FORWARD -i eth1 -p 50 -j rule3_branch $IPTABLES -A FORWARD -i eth1 -p ah -j rule3_branch # # Rule 4 (eth1) # echo "Rule 4 (eth1)" # $IPTABLES -A OUTPUT -o eth1 -p 50 -j rule3_branch $IPTABLES -A OUTPUT -o eth1 -p ah -j rule3_branch $IPTABLES -A FORWARD -o eth1 -p 50 -j rule3_branch $IPTABLES -A FORWARD -o eth1 -p ah -j rule3_branch # # Rule 5 (global) # echo "Rule 5 (global)" # $IPTABLES -A OUTPUT -p tcp -m tcp -d 192.168.2.10 --dport 80 -j rule4_branch $IPTABLES -A FORWARD -p tcp -m tcp -d 192.168.2.10 --dport 80 -j rule4_branch # # Rule 6 (global) # echo "Rule 6 (global)" # $IPTABLES -N rule5_branch $IPTABLES -A INPUT -s 192.168.1.0/24 -j rule5_branch $IPTABLES -A OUTPUT -s 192.168.1.0/24 -j rule5_branch $IPTABLES -A FORWARD -s 192.168.1.0/24 -j rule5_branch # # Rule 7 (global) # echo "Rule 7 (global)" # # green rules branch # also in mangle table $IPTABLES -A OUTPUT -p 50 -j rule0_branch $IPTABLES -A OUTPUT -p ah -j rule0_branch $IPTABLES -A INPUT -p 50 -j rule0_branch $IPTABLES -A INPUT -p ah -j rule0_branch $IPTABLES -A FORWARD -p 50 -j rule0_branch $IPTABLES -A FORWARD -p ah -j rule0_branch # # Rule 8 (global) # echo "Rule 8 (global)" # $IPTABLES -N RULE_8 $IPTABLES -A OUTPUT -p 50 -j RULE_8 $IPTABLES -A OUTPUT -p ah -j RULE_8 $IPTABLES -A INPUT -p 50 -j RULE_8 $IPTABLES -A INPUT -p ah -j RULE_8 $IPTABLES -A FORWARD -p 50 -j RULE_8 $IPTABLES -A FORWARD -p ah -j RULE_8 $IPTABLES -A RULE_8 -j LOG --log-level info --log-prefix "RULE 8 -- BRANCH " $IPTABLES -A RULE_8 -j rule1_branch # # Rule 9 (global) # echo "Rule 9 (global)" # $IPTABLES -N Cid464C29BB3999.0 $IPTABLES -A OUTPUT -s ! 192.168.1.0/24 -j Cid464C29BB3999.0 $IPTABLES -N RULE_9 $IPTABLES -A Cid464C29BB3999.0 -p 50 -j RULE_9 $IPTABLES -A Cid464C29BB3999.0 -p ah -j RULE_9 $IPTABLES -N Cid464C29BB3999.1 $IPTABLES -A INPUT -s ! 192.168.1.0/24 -j Cid464C29BB3999.1 $IPTABLES -A Cid464C29BB3999.1 -p 50 -j RULE_9 $IPTABLES -A Cid464C29BB3999.1 -p ah -j RULE_9 $IPTABLES -N Cid464C29BB3999.2 $IPTABLES -A OUTPUT -s ! 192.168.1.0/24 -j Cid464C29BB3999.2 $IPTABLES -A Cid464C29BB3999.2 -p 50 -j RULE_9 $IPTABLES -A Cid464C29BB3999.2 -p ah -j RULE_9 $IPTABLES -N Cid464C29BB3999.3 $IPTABLES -A FORWARD -s ! 192.168.1.0/24 -j Cid464C29BB3999.3 $IPTABLES -A Cid464C29BB3999.3 -p 50 -j RULE_9 $IPTABLES -A Cid464C29BB3999.3 -p ah -j RULE_9 $IPTABLES -A RULE_9 -j LOG --log-level info --log-prefix "RULE 9 -- BRANCH " $IPTABLES -A RULE_9 -j rule2_branch # # Rule 10 (eth1) # echo "Rule 10 (eth1)" # $IPTABLES -A INPUT -i eth1 -p 50 -j rule3_branch $IPTABLES -A INPUT -i eth1 -p ah -j rule3_branch $IPTABLES -A FORWARD -i eth1 -p 50 -j rule3_branch $IPTABLES -A FORWARD -i eth1 -p ah -j rule3_branch # # Rule 11 (eth1) # echo "Rule 11 (eth1)" # $IPTABLES -A OUTPUT -o eth1 -p 50 -j rule3_branch $IPTABLES -A OUTPUT -o eth1 -p ah -j rule3_branch $IPTABLES -A FORWARD -o eth1 -p 50 -j rule3_branch $IPTABLES -A FORWARD -o eth1 -p ah -j rule3_branch # # Rule 12 (global) # echo "Rule 12 (global)" # $IPTABLES -A OUTPUT -p tcp -m tcp -d 192.168.2.10 --dport 80 -j rule4_branch $IPTABLES -A FORWARD -p tcp -m tcp -d 192.168.2.10 --dport 80 -j rule4_branch # # Rule 13 (global) # echo "Rule 13 (global)" # $IPTABLES -A INPUT -s 192.168.1.0/24 -j rule5_branch $IPTABLES -A OUTPUT -s 192.168.1.0/24 -j rule5_branch $IPTABLES -A FORWARD -s 192.168.1.0/24 -j rule5_branch # # Rule 14 (global) # echo "Rule 14 (global)" # # testing loop in branching rules $IPTABLES -A INPUT -s 192.168.1.0/24 -j rule6_branch $IPTABLES -A OUTPUT -s 192.168.1.0/24 -j rule6_branch $IPTABLES -A FORWARD -s 192.168.1.0/24 -j rule6_branch # # Rule 15 (global) # echo "Rule 15 (global)" # $IPTABLES -A INPUT -s 192.168.1.0/24 -j TCPMSS --set-mss 1400 $IPTABLES -A OUTPUT -s 192.168.1.0/24 -j TCPMSS --set-mss 1400 $IPTABLES -A FORWARD -s 192.168.1.0/24 -j TCPMSS --set-mss 1400 # # Rule 16 (global) # echo "Rule 16 (global)" # $IPTABLES -N RULE_16 $IPTABLES -A INPUT -s 222.222.222.0/24 -j RULE_16 $IPTABLES -A FORWARD -s 222.222.222.0/24 -j RULE_16 $IPTABLES -A RULE_16 -j LOG --log-level info --log-prefix "RULE 16 -- CUSTOM " $IPTABLES -A RULE_16 -j TARPIT # # Rule 17 (global) # echo "Rule 17 (global)" # $IPTABLES -N RULE_17 $IPTABLES -A OUTPUT -j RULE_17 $IPTABLES -A INPUT -j RULE_17 $IPTABLES -A FORWARD -j RULE_17 $IPTABLES -A RULE_17 -j LOG --log-level info --log-prefix "RULE 17 -- DENY " $IPTABLES -A RULE_17 -j DROP } 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 "$cmd" in start) log "Activating firewall script generated Fri Jun 3 17:28:14 2011 by vadim" check_tools prolog_commands check_run_time_address_table_files load_modules "nat " configure_interfaces verify_interfaces reset_all script_body ip_forward epilog_commands RETVAL=$? ;; 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