onkelbeh/fwbuilder
1
0
Fork 0
mirror of https://github.com/fwbuilder/fwbuilder synced 2026-03-19 17:57:22 +01:00
Code Issues Releases Wiki Activity
fwbuilder/test/ipt/heartbeat_cluster_1_linux-2.fw.orig
Vadim Kurland d0ae7bac01 * NATCompiler_ipt.cpp (processNext): see #2097 #133 "support for 
inbound and outbound interface columns in iptables NAT
rules". This also addresses SF feature requests 1954286 "DNAT with
interface as condition not possible" and 621023 "manipulating
interface in NAT rule".
2011-02-17 17:47:42 -08:00

801 lines
22 KiB
Bash
Executable File
Raw Blame History

#!/bin/sh
#
# This is automatically generated file. DO NOT MODIFY !
#
# Firewall Builder fwb_ipt v4.2.0.3480
#
# Generated Thu Feb 17 17:38:18 2011 PST by vadim
#
# files: * heartbeat_cluster_1_linux-2.fw /etc/heartbeat_cluster_1_linux-2.fw
#
# Compiled for iptables (any version)
#
# linux-2:to_fw:: warning: ignoring cluster rule set "to_fw" because member firewall "linux-2" has rule set with the same name.
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 && $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
command -v $PGM &>/dev/null || {
echo "$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"
for i in eth0 eth1 lo ; 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 172.24.0.3/16" "172.24.0.1/16"
update_addresses_of_interface "eth1 192.168.1.3/24" "192.168.1.1/24"
update_addresses_of_interface "lo 127.0.0.1/8" ""
}
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 SNAT --to-source 172.24.0.1
#
# Rule 1 (NAT)
#
echo "Rule 1 (NAT)"
#
$IPTABLES -t nat -A POSTROUTING -o eth0 -s 192.168.1.0/24 -j SNAT --to-source 172.24.0.1
#
# Rule 2 (NAT)
#
echo "Rule 2 (NAT)"
#
$IPTABLES -t nat -A PREROUTING -p tcp -m tcp -d 172.24.0.1 --dport 22 -j DNAT --to-destination 192.168.1.100
#
# Rule 3 (NAT)
#
echo "Rule 3 (NAT)"
#
$IPTABLES -t nat -A PREROUTING -p tcp -m tcp -d 172.24.0.1 --dport 22 -j DNAT --to-destination 192.168.1.100
# ================ Table 'filter', rule set to_fw
#
# Rule to_fw 0 (global)
#
echo "Rule to_fw 0 (global)"
#
# hashlimit 20/sec
$IPTABLES -N to_fw
$IPTABLES -N to_fw_0
$IPTABLES -A to_fw -m hashlimit --hashlimit 20/second --hashlimit-name htable_rule_0 -j to_fw_0
$IPTABLES -A to_fw_0 -j LOG --log-level info --log-prefix "RULE 0 -- DENY "
$IPTABLES -A to_fw_0 -j DROP
# ================ Table 'filter', rule set Policy
#
# 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 -N Cid3009X69605.2.0
$IPTABLES -A INPUT -i eth0 -p udp -m udp -d 224.0.10.100 --dport 694 -j Cid3009X69605.2.0
$IPTABLES -A Cid3009X69605.2.0 -s 172.24.0.2 -j ACCEPT
$IPTABLES -A Cid3009X69605.2.0 -s 192.168.100.1 -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 3781 -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 3781 -j ACCEPT
#
# Rule 0 (eth0)
#
echo "Rule 0 (eth0)"
#
$IPTABLES -A INPUT -i eth0 -p vrrp -d 224.0.0.18 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -o eth0 -p vrrp -d 224.0.0.18 -m state --state NEW -j ACCEPT
#
# Rule 1 (eth0)
#
echo "Rule 1 (eth0)"
#
# anti spoofing rule
$IPTABLES -N In_RULE_1
$IPTABLES -A INPUT -i eth0 -s 172.24.0.1 -m state --state NEW -j In_RULE_1
$IPTABLES -A INPUT -i eth0 -s 172.24.0.3 -m state --state NEW -j In_RULE_1
$IPTABLES -A INPUT -i eth0 -s 192.168.1.1 -m state --state NEW -j In_RULE_1
$IPTABLES -A INPUT -i eth0 -s 192.168.1.3 -m state --state NEW -j In_RULE_1
$IPTABLES -A INPUT -i eth0 -s 192.168.1.0/24 -m state --state NEW -j In_RULE_1
$IPTABLES -A FORWARD -i eth0 -s 172.24.0.1 -m state --state NEW -j In_RULE_1
$IPTABLES -A FORWARD -i eth0 -s 172.24.0.3 -m state --state NEW -j In_RULE_1
$IPTABLES -A FORWARD -i eth0 -s 192.168.1.1 -m state --state NEW -j In_RULE_1
$IPTABLES -A FORWARD -i eth0 -s 192.168.1.3 -m state --state NEW -j In_RULE_1
$IPTABLES -A FORWARD -i eth0 -s 192.168.1.0/24 -m state --state NEW -j In_RULE_1
$IPTABLES -A In_RULE_1 -j LOG --log-level info --log-prefix "RULE 1 -- DENY "
$IPTABLES -A In_RULE_1 -j DROP
#
# Rule 2 (lo)
#
echo "Rule 2 (lo)"
#
$IPTABLES -A INPUT -i lo -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -o lo -m state --state NEW -j ACCEPT
#
# Rule 3 (global)
#
echo "Rule 3 (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 4 (global)
#
echo "Rule 4 (global)"
#
# SSH Access to firewall is permitted
# only from internal network
$IPTABLES -A INPUT -p tcp -m tcp -s 192.168.1.0/24 -d 192.168.1.3 --dport 22 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -p tcp -m tcp -s 192.168.1.0/24 -d 192.168.1.2 --dport 22 -m state --state NEW -j ACCEPT
$IPTABLES -A FORWARD -p tcp -m tcp -s 192.168.1.0/24 -d 192.168.1.2 --dport 22 -m state --state NEW -j ACCEPT
#
# Rule 5 (global)
#
echo "Rule 5 (global)"
#
# Firewall uses one of the machines
# on internal network for DNS
$IPTABLES -N RULE_5
$IPTABLES -A OUTPUT -p tcp -m tcp -d 192.168.1.0/24 --dport 53 -m state --state NEW -j RULE_5
$IPTABLES -A OUTPUT -p udp -m udp -d 192.168.1.0/24 --dport 53 -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)"
#
# branch rule set is different in members linux-1 and linux-2
$IPTABLES -A OUTPUT -d 172.24.0.1 -j to_fw
$IPTABLES -A OUTPUT -d 172.24.0.3 -j to_fw
$IPTABLES -A OUTPUT -d 192.168.1.1 -j to_fw
$IPTABLES -A OUTPUT -d 192.168.1.3 -j to_fw
$IPTABLES -A INPUT -j to_fw
#
# Rule 7 (global)
#
echo "Rule 7 (global)"
#
# branch rule set is different in members linux-1 and linux-2
$IPTABLES -A OUTPUT -d 172.24.0.2 -j to_fw
$IPTABLES -A OUTPUT -d 192.168.1.2 -j to_fw
$IPTABLES -A OUTPUT -d 192.168.100.1 -j to_fw
$IPTABLES -A FORWARD -d 172.24.0.2 -j to_fw
$IPTABLES -A FORWARD -d 192.168.1.2 -j to_fw
$IPTABLES -A FORWARD -d 192.168.100.1 -j to_fw
#
# Rule 8 (global)
#
echo "Rule 8 (global)"
#
$IPTABLES -A OUTPUT -d 172.24.0.1 -j DROP
$IPTABLES -A OUTPUT -d 172.24.0.3 -j DROP
$IPTABLES -A OUTPUT -d 192.168.1.1 -j DROP
$IPTABLES -A OUTPUT -d 192.168.1.3 -j DROP
$IPTABLES -A INPUT -j DROP
#
# Rule 9 (global)
#
echo "Rule 9 (global)"
#
$IPTABLES -A INPUT -j DROP
#
# Rule 10 (global)
#
echo "Rule 10 (global)"
#
# fw is part of any
$IPTABLES -N Cid997025X96143.0
$IPTABLES -A INPUT -p tcp -m tcp --dport 22 -m state --state NEW -j Cid997025X96143.0
$IPTABLES -A Cid997025X96143.0 -s 172.24.0.1 -j ACCEPT
$IPTABLES -A Cid997025X96143.0 -s 172.24.0.3 -j ACCEPT
$IPTABLES -A Cid997025X96143.0 -s 192.168.1.1 -j ACCEPT
$IPTABLES -A Cid997025X96143.0 -s 192.168.1.3 -j ACCEPT
$IPTABLES -A OUTPUT -p tcp -m tcp --dport 22 -m state --state NEW -j ACCEPT
#
# Rule 11 (global)
#
echo "Rule 11 (global)"
#
# fw is NOT part of any
$IPTABLES -A OUTPUT -p tcp -m tcp --dport 22 -m state --state NEW -j ACCEPT
#
# Rule 12 (global)
#
echo "Rule 12 (global)"
#
# fw is NOT part of any
$IPTABLES -N Cid143289X96143.0
$IPTABLES -A OUTPUT -p tcp -m tcp --dport 22 -m state --state NEW -j Cid143289X96143.0
$IPTABLES -A Cid143289X96143.0 -s 172.24.0.1 -j ACCEPT
$IPTABLES -A Cid143289X96143.0 -s 172.24.0.3 -j ACCEPT
#
# Rule 13 (global)
#
echo "Rule 13 (global)"
#
# fw is NOT part of any
$IPTABLES -N Cid1946680X96143.0
$IPTABLES -A OUTPUT -p tcp -m tcp --dport 22 -m state --state NEW -j Cid1946680X96143.0
$IPTABLES -A Cid1946680X96143.0 -s 172.24.0.1 -j ACCEPT
$IPTABLES -A Cid1946680X96143.0 -s 172.24.0.3 -j ACCEPT
#
# Rule 14 (eth0)
#
echo "Rule 14 (eth0)"
#
# fw is NOT part of any
$IPTABLES -N Cid378955X96143.0
$IPTABLES -A FORWARD -i eth0 -p tcp -m tcp --dport 22 -m state --state NEW -j Cid378955X96143.0
$IPTABLES -A Cid378955X96143.0 -s 172.24.0.1 -j ACCEPT
$IPTABLES -A Cid378955X96143.0 -s 172.24.0.3 -j ACCEPT
$IPTABLES -N Cid378955X96143.1
$IPTABLES -A OUTPUT -o eth0 -p tcp -m tcp --dport 22 -m state --state NEW -j Cid378955X96143.1
$IPTABLES -A Cid378955X96143.1 -s 172.24.0.1 -j ACCEPT
$IPTABLES -A Cid378955X96143.1 -s 172.24.0.3 -j ACCEPT
#
# Rule 15 (eth0)
#
echo "Rule 15 (eth0)"
#
# fw is NOT part of any
$IPTABLES -N Cid1801407X96143.0
$IPTABLES -A OUTPUT -o eth0 -p tcp -m tcp --dport 22 -m state --state NEW -j Cid1801407X96143.0
$IPTABLES -A Cid1801407X96143.0 -s 172.24.0.1 -j ACCEPT
$IPTABLES -A Cid1801407X96143.0 -s 172.24.0.3 -j ACCEPT
#
# Rule 16 (global)
#
echo "Rule 16 (global)"
#
# fw is NOT part of any
$IPTABLES -A OUTPUT -p tcp -m tcp -s 172.24.0.3 --dport 22 -m state --state NEW -j ACCEPT
$IPTABLES -N Cid143343X96143.0
$IPTABLES -A FORWARD -p tcp -m tcp --dport 22 -m state --state NEW -j Cid143343X96143.0
$IPTABLES -A Cid143343X96143.0 -s 172.24.0.2 -j ACCEPT
$IPTABLES -A Cid143343X96143.0 -s 192.168.100.1 -j ACCEPT
#
# Rule 17 (eth0)
#
echo "Rule 17 (eth0)"
#
# fw is NOT part of any
$IPTABLES -A FORWARD -i eth0 -p tcp -m tcp -s 172.24.0.3 --dport 22 -m state --state NEW -j ACCEPT
$IPTABLES -N Cid2241935X96143.0
$IPTABLES -A FORWARD -i eth0 -p tcp -m tcp --dport 22 -m state --state NEW -j Cid2241935X96143.0
$IPTABLES -A Cid2241935X96143.0 -s 172.24.0.2 -j ACCEPT
$IPTABLES -A Cid2241935X96143.0 -s 192.168.100.1 -j ACCEPT
$IPTABLES -A OUTPUT -o eth0 -p tcp -m tcp -s 172.24.0.3 --dport 22 -m state --state NEW -j ACCEPT
$IPTABLES -N Cid2241935X96143.1
$IPTABLES -A FORWARD -o eth0 -p tcp -m tcp --dport 22 -m state --state NEW -j Cid2241935X96143.1
$IPTABLES -A Cid2241935X96143.1 -s 172.24.0.2 -j ACCEPT
$IPTABLES -A Cid2241935X96143.1 -s 192.168.100.1 -j ACCEPT
#
# Rule 18 (eth0)
#
echo "Rule 18 (eth0)"
#
# fw is NOT part of any
$IPTABLES -A OUTPUT -o eth0 -p tcp -m tcp -s 172.24.0.3 --dport 22 -m state --state NEW -j ACCEPT
$IPTABLES -N Cid2241981X96143.0
$IPTABLES -A FORWARD -o eth0 -p tcp -m tcp --dport 22 -m state --state NEW -j Cid2241981X96143.0
$IPTABLES -A Cid2241981X96143.0 -s 172.24.0.2 -j ACCEPT
$IPTABLES -A Cid2241981X96143.0 -s 192.168.100.1 -j ACCEPT
#
# Rule 19 (global)
#
echo "Rule 19 (global)"
#
# using interface of another cluster in the rule
$IPTABLES -N Cid8228X45618.0
$IPTABLES -A INPUT -p tcp -m tcp --dport 22 -m state --state NEW -j Cid8228X45618.0
$IPTABLES -A Cid8228X45618.0 -s 192.168.1.1 -j ACCEPT
$IPTABLES -A Cid8228X45618.0 -s 192.168.1.2 -j ACCEPT
$IPTABLES -A Cid8228X45618.0 -s 192.168.1.100 -j ACCEPT
#
# Rule 20 (global)
#
echo "Rule 20 (global)"
#
$IPTABLES -N Cid147047X84105.0
$IPTABLES -A OUTPUT -p tcp -m tcp --dport 22 -m state --state NEW -j Cid147047X84105.0
$IPTABLES -A Cid147047X84105.0 -d 192.168.1.1 -j ACCEPT
$IPTABLES -A Cid147047X84105.0 -d 192.168.1.2 -j ACCEPT
$IPTABLES -A Cid147047X84105.0 -d 192.168.1.100 -j ACCEPT
#
# Rule 21 (global)
#
echo "Rule 21 (global)"
#
$IPTABLES -N RULE_21
$IPTABLES -A OUTPUT -m state --state NEW -j RULE_21
$IPTABLES -A INPUT -m state --state NEW -j RULE_21
$IPTABLES -A FORWARD -m state --state NEW -j RULE_21
$IPTABLES -A RULE_21 -j LOG --log-level info --log-prefix "RULE 21 -- DENY "
$IPTABLES -A RULE_21 -j DROP
#
# Rule 22 (global)
#
echo "Rule 22 (global)"
#
$IPTABLES -N RULE_22
$IPTABLES -A OUTPUT -j RULE_22
$IPTABLES -A INPUT -j RULE_22
$IPTABLES -A FORWARD -j RULE_22
$IPTABLES -A RULE_22 -j LOG --log-level info --log-prefix "RULE 22 -- DENY "
$IPTABLES -A RULE_22 -j DROP
# ============== ROUTING RULES ==============
TMPDIRNAME="/tmp/.fwbuilder.tempdir.$$"
TMPFILENAME="$TMPDIRNAME/.fwbuilder.out"
(umask 077 && mkdir $TMPDIRNAME) || exit 1
#
# This function stops stdout redirection
# and sends previously saved output to terminal
restore_script_output()
{
exec 1>&3 2>&1
cat $TMPFILENAME
rm -rf $TMPDIRNAME
}
# if any routing rule fails we do our best to prevent freezing the firewall
route_command_error()
{
echo "Error: Routing rule $1 couldn't be activated"
echo "Recovering previous routing configuration..."
# delete current routing rules
$IP route show | while read route ; do $IP route del $route ; done
# restore old routing rules
(IFS="
"; for route in $oldRoutes; do (IFS=' '; $IP route add $route); done)
echo "...done"
restore_script_output
epilog_commands
exit 1
}
# redirect output to prevent ssh session from stalling
exec 3>&1
exec 1> $TMPFILENAME
exec 2>&1
# store previous routing configuration (sort: 'via' GW has to be
# inserted after device routes)
oldRoutes=$($IP route show | sort -k 2)
echo "Deleting routing rules previously set by user space processes..."
$IP route show | grep -v '\( proto kernel \)\|\(default via \)' | \
while read route ; do $IP route del $route ; done
echo "Activating non-ecmp routing rules..."
#
# Rule 0 (main)
#
echo "Routing rule 0 (main)"
#
#
#
$IP route add 172.24.1.0/24 via 172.24.0.100 dev eth0 \
|| route_command_error "0 (main)"
restore_script_output
echo "...done."
}
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 "$cmd" in
start)
log "Activating firewall script generated Thu Feb 17 17:38:18 2011 by vadim"
check_tools
prolog_commands
check_run_time_address_table_files
load_modules "nat "
configure_interfaces
verify_interfaces
reset_all
script_body
ip_forward
epilog_commands
RETVAL=$?
;;
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
Reference in New Issue View Git Blame Copy Permalink