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fwbuilder/test/ipt/vrrp_cluster_2_linux-1.fw.orig
Vadim Kurland f366e2dc66 * PolicyCompiler_PrintRule.cpp (_printOptionalGlobalRules): SF bug 
3178186 "Add ND/NS allow rules for the FORWARD chain". Rules that are
added automatically to ipv6 Linux firewall to permit neighbor discovery
packets should be also added to the FORWARD chain if the firewall is
a bridge.

see #2323
2011-04-10 17:58:32 -07:00

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#!/bin/sh
#
# This is automatically generated file. DO NOT MODIFY !
#
# Firewall Builder fwb_ipt v4.2.0.3523
#
# Generated Sun Apr 10 17:53:57 2011 PDT by vadim
#
# files: * vrrp_cluster_2_linux-1.fw /etc/vrrp_cluster_2_linux-1.fw
#
# Compiled for iptables (any version)
#
#
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\""
}
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 $PGM >/dev/null 2>&1 || {
echo "$PGM not found"
exit 1
}
}
check_tools() {
find_program $IPTABLES
find_program $MODPROBE
find_program $IP
find_program $VCONFIG
}
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
}
missing_vlan() {
vlan=$1
cmd=$2
oldIFS=$IFS
IFS="@"
set $vlan
subint=$1
parent=$2
IFS=$oldIFS
vlan_id=$(echo $subint | sed -r 's/(vlan|[^.]*\.)//')
test "$cmd" = "add" && {
echo $subint | grep -q "vlan" && name_type="VLAN_PLUS_VID" || name_type="DEV_PLUS_VID"
test "$vlan_id" \< "1" || name_type="${name_type}_NO_PAD"
echo "# Adding VLAN interface $subint (parent: $parent)"
$FWBDEBUG $VCONFIG set_name_type $name_type
$FWBDEBUG $VCONFIG $cmd $parent $vlan_id
$FWBDEBUG $IP link set $subint up
}
test "$cmd" = "rem" && {
echo "# Removing VLAN interface $subint (parent: $parent)"
$FWBDEBUG $VCONFIG $cmd $subint
}
}
parse_fwb_vlans() {
set $1
vlan_parent_interface=$1
shift
FWB_VLANS=$(
for subint in $*; do
echo "${subint}@$vlan_parent_interface"
done | sort
)
echo $FWB_VLANS
}
parse_current_vlans() {
vlan_parent_interface=$1
CURRENT_VLANS=""
PROC_DIR="/proc/net/vlan/"
test -d $PROC_DIR || $MODPROBE 8021q || {
echo "$PROC_DIR does not exist. Vlan interfaces are not available."
exit 1
}
test -f "/proc/net/vlan/config" && {
CURRENT_VLANS=$(
cat /proc/net/vlan/config | grep -v 'Dev name' | grep $vlan_parent_interface | \
while read subint a vlan_id b parent; do
echo "${subint}@$parent"
done | sort
)
}
echo $CURRENT_VLANS
}
update_vlans_of_interface() {
args="$1"
set $1
vlan_parent_interface=$1
FWB_VLANS=$(parse_fwb_vlans "$args")
CURRENT_VLANS=$(parse_current_vlans $vlan_parent_interface)
$IP link set $vlan_parent_interface up
diff_intf missing_vlan "$FWB_VLANS" "$CURRENT_VLANS" add
diff_intf missing_vlan "$CURRENT_VLANS" "$FWB_VLANS" rem
}
add_vlans() {
args="$1"
set $1
vlan_parent_interface=$1
FWB_VLANS=$(parse_fwb_vlans $args)
CURRENT_VLANS=$(parse_current_vlans $vlan_parent_interface)
$IP link set $vlan_parent_interface up
diff_intf missing_vlan "$FWB_VLANS" "$CURRENT_VLANS" add
}
clear_vlans_except_known() {
FWB_VLANS=$*
CURRENT_VLANS=$(parse_current_vlans '|')
diff_intf missing_vlan "$CURRENT_VLANS" "$FWB_VLANS" rem
}
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 eth0.100"
for i in eth0 eth1 lo eth0.100 ; 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_vlans_of_interface "eth0 eth0.100"
clear_vlans_except_known eth0.100@eth0
update_addresses_of_interface "eth0 172.24.0.2/16" "172.24.0.1/24"
update_addresses_of_interface "eth1 192.168.1.2/24" "192.168.1.1/24"
update_addresses_of_interface "lo 127.0.0.1/8" ""
update_addresses_of_interface "eth0.100 192.168.100.1/24" ""
}
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
# ================ Table 'filter', rule set to_fw
#
# Rule to_fw 0 (global)
#
echo "Rule to_fw 0 (global)"
#
# hashlimit 10/sec
$IPTABLES -N to_fw
$IPTABLES -N to_fw_0
$IPTABLES -A to_fw -m hashlimit --hashlimit 10/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 -8 VRRP (automatic)
#
echo "Rule -8 VRRP (automatic)"
#
$IPTABLES -A OUTPUT -o eth1 -p vrrp -d 224.0.0.18 -j ACCEPT
#
# Rule -7 VRRP (automatic)
#
echo "Rule -7 VRRP (automatic)"
#
$IPTABLES -A INPUT -i eth1 -p vrrp -s 192.168.1.4 -d 224.0.0.18 -j ACCEPT
#
# Rule -6 VRRP (automatic)
#
echo "Rule -6 VRRP (automatic)"
#
$IPTABLES -A INPUT -i eth1 -p vrrp -s 192.168.1.3 -d 224.0.0.18 -j ACCEPT
#
# Rule -5 VRRP (automatic)
#
echo "Rule -5 VRRP (automatic)"
#
$IPTABLES -A OUTPUT -o eth0 -p vrrp -d 224.0.0.18 -j ACCEPT
#
# Rule -4 VRRP (automatic)
#
echo "Rule -4 VRRP (automatic)"
#
$IPTABLES -A INPUT -i eth0 -p vrrp -s 172.24.0.4 -d 224.0.0.18 -j ACCEPT
#
# Rule -3 VRRP (automatic)
#
echo "Rule -3 VRRP (automatic)"
#
$IPTABLES -A INPUT -i eth0 -p vrrp -s 172.24.0.3 -d 224.0.0.18 -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)"
#
$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 172.24.0.2 -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 192.168.1.2 -m state --state NEW -j In_RULE_1
$IPTABLES -A INPUT -i eth0 -s 192.168.100.1 -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 172.24.0.2 -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 192.168.1.2 -m state --state NEW -j In_RULE_1
$IPTABLES -A FORWARD -i eth0 -s 192.168.100.1 -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 192.168.1.2 --dport 22 -m state --state NEW -j ACCEPT
$IPTABLES -N Cid5188X25627.0
$IPTABLES -A OUTPUT -p tcp -m tcp -s 192.168.1.0/24 --dport 22 -m state --state NEW -j Cid5188X25627.0
$IPTABLES -A Cid5188X25627.0 -d 192.168.1.3 -j ACCEPT
$IPTABLES -A Cid5188X25627.0 -d 192.168.1.4 -j ACCEPT
$IPTABLES -N Cid5188X25627.1
$IPTABLES -A FORWARD -p tcp -m tcp -s 192.168.1.0/24 --dport 22 -m state --state NEW -j Cid5188X25627.1
$IPTABLES -A Cid5188X25627.1 -d 192.168.1.3 -j ACCEPT
$IPTABLES -A Cid5188X25627.1 -d 192.168.1.4 -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)"
#
# All other attempts to connect to
# the firewall are denied and logged
$IPTABLES -N RULE_6
$IPTABLES -A OUTPUT -d 172.24.0.1 -j RULE_6
$IPTABLES -A OUTPUT -d 172.24.0.2 -j RULE_6
$IPTABLES -A OUTPUT -d 192.168.1.1 -j RULE_6
$IPTABLES -A OUTPUT -d 192.168.1.2 -j RULE_6
$IPTABLES -A OUTPUT -d 192.168.100.1 -j RULE_6
$IPTABLES -A INPUT -j RULE_6
$IPTABLES -A RULE_6 -j LOG --log-level info --log-prefix "RULE 6 -- DENY "
$IPTABLES -A RULE_6 -j DROP
#
# Rule 7 (global)
#
echo "Rule 7 (global)"
#
$IPTABLES -A INPUT -s 192.168.1.0/24 -m state --state NEW -j ACCEPT
$IPTABLES -A OUTPUT -s 192.168.1.0/24 -m state --state NEW -j ACCEPT
$IPTABLES -A FORWARD -s 192.168.1.0/24 -m state --state NEW -j ACCEPT
#
# Rule 8 (global)
#
echo "Rule 8 (global)"
#
$IPTABLES -N RULE_8
$IPTABLES -A OUTPUT -m state --state NEW -j RULE_8
$IPTABLES -A INPUT -m state --state NEW -j RULE_8
$IPTABLES -A FORWARD -m state --state NEW -j RULE_8
$IPTABLES -A RULE_8 -j LOG --log-level info --log-prefix "RULE 8 -- DENY "
$IPTABLES -A RULE_8 -j DROP
#
# Rule 9 (global)
#
echo "Rule 9 (global)"
#
$IPTABLES -N RULE_9
$IPTABLES -A OUTPUT -j RULE_9
$IPTABLES -A INPUT -j RULE_9
$IPTABLES -A FORWARD -j RULE_9
$IPTABLES -A RULE_9 -j LOG --log-level info --log-prefix "RULE 9 -- DENY "
$IPTABLES -A RULE_9 -j DROP
}
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 "$cmd" in
start)
log "Activating firewall script generated Sun Apr 10 17:53:57 2011 by vadim"
check_tools
prolog_commands
check_run_time_address_table_files
load_modules "nat "
configure_interfaces
verify_interfaces
reset_all
script_body
ip_forward
epilog_commands
RETVAL=$?
;;
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
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