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fwbuilder/test/ipt/fw-A.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

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#!/bin/sh
#
# This is automatically generated file. DO NOT MODIFY !
#
# Firewall Builder fwb_ipt v4.2.0.3480
#
# Generated Thu Feb 17 17:38:05 2011 PST by vadim
#
# files: * fw-A.fw /sw/FWbuilder/fw-A.fw
#
# Compiled for iptables 1.3.0
#
# fw-A:Routing:0: error: Object "gw_200" used as gateway in the routing rule 0 (main) is not reachable because it is not in any local network of the firewall
# fw-A:Routing:0: error: Object "gw_200" used as gateway in the routing rule 0 (main) is not in the same local network as interface eth3
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
find_program $VCONFIG
find_program $IFENSLAVE
}
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
}
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
}
missing_bond() {
bond_intf=$1
cmd=$2
test "$cmd" = "down" && {
echo "# Bring unconfigured bonding interface $bond_intf down"
$FWBDEBUG $IP link set $bond_intf down
}
}
missing_slave() {
slave=$1
cmd=$2
oldIFS=$IFS
IFS="@"
set $slave
intf=$1
bond_interface=$2
IFS=$oldIFS
test "$cmd" = "-d" && {
echo "# Delete bonding interface slave: $bond_interface $intf"
$FWBDEBUG $IFENSLAVE -d $bond_interface $intf
} || {
echo "# Add bonding interface slave: $bond_interface $intf"
$FWBDEBUG $IP link set $bond_interface up
$FWBDEBUG $IFENSLAVE $bond_interface $intf
}
}
load_bonding_module() {
bonding_interfaces=$1
shift
module_parameters=$*
PROC_DIR="/proc/net/bonding/"
test -d $PROC_DIR || {
cmd="$MODPROBE bonding $module_parameters"
test -n "$FWBDEBUG" && echo "# $cmd" || $cmd || {
# Module load failed.
cat <<EOF
Could not load bonding interface module. Try to add
module parameters to the file /etc/modprobe.conf or
/etc/modprobe.d/bond.conf and reboot
EOF
# do not abort in test mode
test -z "$FWBDEBUG" && exit 1
}
}
## test that we now have bonding interfaces that we need
for bondint in $bonding_interfaces; do
PROD_BOND_IFACE="${PROC_DIR}/$bondint"
test -f $PROD_BOND_IFACE || {
echo "Bonding interface $bondint does not exist"
test -z "$FWBDEBUG" && exit 1
}
done
}
unload_bonding_module() {
$MODPROBE -r bonding
}
update_bonding() {
bond_interface=$1
shift
PROC_DIR="/proc/net/bonding/"
PROD_BOND_IFACE="${PROC_DIR}/$bond_interface"
test -f $PROD_BOND_IFACE && {
FWB_SLAVES=""
CURRENT_SLAVES=""
FWB_SLAVES=$(
for subint in $*; do
echo "${subint}@$bond_interface"
done | sort
)
CURRENT_SLAVES=$(
cat $PROD_BOND_IFACE | grep 'Slave Interface:' | \
while read a b slave; do
echo "${slave}@$bond_interface"
done | sort
)
diff_intf missing_slave "$FWB_SLAVES" "$CURRENT_SLAVES" " "
diff_intf missing_slave "$CURRENT_SLAVES" "$FWB_SLAVES" "-d"
}
}
clear_bonding_except_known() {
PROC_DIR="/proc/net/bonding/"
ls $PROC_DIR | awk -v IGNORED="$*" \
'BEGIN {
split(IGNORED,ignored_arr);
for (a in ignored_arr) {ignored_dict[ignored_arr[a]]=1;}
}
(!($1 in ignored_dict)) {print $1;}' | \
while read bond_intf; do
PROD_BOND_IFACE="${PROC_DIR}/$bond_intf"
slaves=$(cat $PROD_BOND_IFACE | awk '/[sS]lave [iI]nterface:/ { printf "%s ",$NF;}')
test -n "$slaves" && {
echo "Removing slaves and bringing unconfigured bonding interface $bond_intf down"
$FWBDEBUG $IP link set $bond_intf up
$FWBDEBUG $IFENSLAVE -d $bond_intf $slaves
$FWBDEBUG $IP link set $bond_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: bond0 eth2 eth3 bond1 lo eth6 eth0 eth1 bond0.2 bond0.1 eth2.201 eth2.202 eth4 eth5"
for i in bond0 eth2 eth3 bond1 lo eth6 eth0 eth1 bond0.2 bond0.1 eth2.201 eth2.202 eth4 eth5 ; 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
load_bonding_module "bond0 bond1" max_bonds=2 mode=802.3ad xmit_hash_policy=layer2 miimon=100
update_bonding bond0 eth0 eth1
update_bonding bond1 eth4 eth5
clear_bonding_except_known bond0 bond1
update_vlans_of_interface "bond0 bond0.2 bond0.1"
update_vlans_of_interface "eth2 eth2.201 eth2.202"
clear_vlans_except_known bond0.2@bond0 bond0.1@bond0 eth2.201@eth2 eth2.202@eth2
update_addresses_of_interface "eth3 192.0.2.11/24" ""
update_addresses_of_interface "bond1 192.168.11.11/24" ""
update_addresses_of_interface "lo 127.0.0.1/8" ""
update_addresses_of_interface "eth6 192.168.6.11/24" ""
update_addresses_of_interface "bond0.2 192.168.2.11/24" ""
update_addresses_of_interface "bond0.1 192.168.1.11/24" ""
update_addresses_of_interface "eth2.201 192.168.201.11/24" ""
update_addresses_of_interface "eth2.202 192.168.202.11/24" ""
clear_addresses_except_known_interfaces bond0 eth2 eth3 bond1 lo eth6 eth0 eth1 bond0.2 bond0.1 eth2.201 eth2.202 eth4 eth5
}
script_body() {
echo 1 > /proc/sys/net/ipv4/ip_dynaddr
echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter
echo 0 > /proc/sys/net/ipv4/conf/all/accept_source_route
echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects
echo 1 > /proc/sys/net/ipv4/conf/all/log_martians
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all
echo 0 > /proc/sys/net/ipv4/icmp_ignore_bogus_error_responses
echo 1 > /proc/sys/net/ipv4/tcp_syncookies
echo 250000 > /proc/sys/net/ipv4/netfilter/ip_conntrack_max
echo 250000 > /sys/module/ip_conntrack/parameters/hashsize
echo 1 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_be_liberal
# ================ 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
# drop packets that do not match any valid state and log them
$IPTABLES -N drop_invalid
$IPTABLES -A OUTPUT -m state --state INVALID -j drop_invalid
$IPTABLES -A INPUT -m state --state INVALID -j drop_invalid
$IPTABLES -A FORWARD -m state --state INVALID -j drop_invalid
$IPTABLES -A drop_invalid -j LOG --log-level debug --log-prefix "INVALID state -- DENY "
$IPTABLES -A drop_invalid -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' | \
while read route ; do $IP route del $route ; done
echo "Activating non-ecmp routing rules..."
#
# Rule 0 (main)
#
echo "Routing rule 0 (main)"
#
#
#
# fw-A:Routing:0: error: Object "gw_200" used as gateway in the routing rule 0 (main) is not in the same local network as interface eth3
$IP route add default via 200.200.200.200 dev eth3 \
|| route_command_error "0 (main)"
#
# Rule 1 (main)
#
echo "Routing rule 1 (main)"
#
# for 1410: gateway matches subnet of a vlan interface
#
$IP route add 192.168.101.0/24 via 192.168.1.200 dev bond0.1 \
|| route_command_error "1 (main)"
#
# Rule 2 (main)
#
echo "Routing rule 2 (main)"
#
# for 1410: gateway matches subnet of a vlan interface
#
$IP route add 192.168.102.0/24 via 192.168.2.200 dev bond0.2 \
|| route_command_error "2 (main)"
#
# Rule 3 (main)
#
echo "Routing rule 3 (main)"
#
#
#
$IP route add 192.168.111.0/24 via 192.168.11.200 dev bond1 \
|| route_command_error "3 (main)"
#
# Rule 4 (main)
#
echo "Routing rule 4 (main)"
#
# for 1410: gateway matches subnet of a vlan interface
#
$IP route add 192.168.211.0/24 via 192.168.201.200 dev eth2.201 \
|| route_command_error "4 (main)"
#
# Rule 5 (main)
#
echo "Routing rule 5 (main)"
#
# for 1410: gateway matches subnet of a vlan interface
#
$IP route add 192.168.212.0/24 via 192.168.202.200 dev eth2.202 \
|| route_command_error "5 (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 "$cmd" in
start)
log "Activating firewall script generated Thu Feb 17 17:38:05 2011 by vadim"
check_tools
prolog_commands
check_run_time_address_table_files
load_modules " "
configure_interfaces
verify_interfaces
reset_all
script_body
ip_forward
epilog_commands
RETVAL=$?
;;
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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