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fwbuilder/test/ipt/firewall-ipv6-4-1.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 17:53:39 2011 PDT by vadim
#
# files: * firewall-ipv6-4-1.fw /etc/firewall-ipv6-4-1.fw
#
# Compiled for iptables 1.4.0
#
# Policy is configured as dual address family. Using iptables-restore. Firewall is NOT part of any
# firewall-ipv6-4-1:Policy:2: error: Rule '2 (global)' shadows rule '3 (global)' below it
# firewall-ipv6-4-1:Policy:4: error: Rule '4 (global)' shadows rule '6 (global)' below it
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
# firewall-ipv6-4-1:Policy:2: error: Rule '2 (global)' shadows rule '3 (global)' below it
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET6): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET6): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET6): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET6): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
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 $IPTABLES_RESTORE
find_program $IP6TABLES_RESTORE
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() {
:
echo "Verifying interfaces: eth0 eth1"
for i in eth0 eth1 ; 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 fe80::21d:9ff:fe8b:8e94/64 1.1.1.1/24" ""
getaddr eth1 i_eth1
getaddr6 eth1 i_eth1_v6
}
script_body() {
# ================ IPv4
(
echo '*filter'
# ================ Table 'filter', automatic rules
echo :INPUT DROP [0:0]
echo :FORWARD DROP [0:0]
echo :OUTPUT DROP [0:0]
# accept established sessions
echo "-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT "
echo "-A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT "
echo "-A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT "
# drop packets that do not match any valid state and log them
echo ":drop_invalid - [0:0]"
echo "-A OUTPUT -m state --state INVALID -j drop_invalid "
echo "-A INPUT -m state --state INVALID -j drop_invalid "
echo "-A FORWARD -m state --state INVALID -j drop_invalid "
echo "-A drop_invalid -j ULOG --ulog-nlgroup 1 --ulog-qthreshold 1 --ulog-prefix \"INVALID state -- DENY \""
echo "-A drop_invalid -j DROP "
# ================ Table 'filter', rule set Policy
#
# Rule 0 (global)
echo ":In_RULE_0 - [0:0]"
echo "-A INPUT -m state --state NEW -j In_RULE_0 "
echo "-A In_RULE_0 -j ULOG --ulog-nlgroup 1 --ulog-prefix \"RULE 0 -- ACCEPT \" --ulog-qthreshold 1 "
echo "-A In_RULE_0 -j ACCEPT "
#
# Rule 1 (global)
echo "-A OUTPUT -p icmp -m icmp -s 1.1.1.1 --icmp-type 8/0 -m state --state NEW -j ACCEPT "
#
# Rule 2 (global)
# firewall-ipv6-4-1:Policy:2: error: Rule '2 (global)' shadows rule '3 (global)' below it
echo "-A FORWARD -p icmp -m icmp --icmp-type any -m state --state NEW -j ACCEPT "
#
# Rule 3 (global)
echo "-A FORWARD -p icmp -m icmp --icmp-type 8/0 -m state --state NEW -j ACCEPT "
#
# Rule 4 (global)
# INPUT, OUTPUT, FORWARD
# firewall-ipv6-4-1:Policy:4: error: Rule '4 (global)' shadows rule '6 (global)' below it
echo "-A FORWARD -s 1.1.1.0/24 -m state --state NEW -j ACCEPT "
#
# Rule 5 (global)
# INPUT, OUTPUT, FORWARD
echo "-A FORWARD -d 1.1.1.0/24 -m state --state NEW -j ACCEPT "
#
# Rule 6 (global)
# for bug 2047082
#
echo "-A OUTPUT -m state --state NEW -j ACCEPT "
#
# Rule 7 (global)
echo "-A FORWARD -d 6bone.net -m state --state NEW -j ACCEPT "
echo "-A FORWARD -d ny6ix.net -m state --state NEW -j ACCEPT "
#
# Rule 8 (global)
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
echo ":RULE_8 - [0:0]"
echo "-A FORWARD -d 192.0.2.1 -j RULE_8 "
echo "-A FORWARD -d 207.251.84.150 -j RULE_8 "
echo "-A RULE_8 -j ULOG --ulog-nlgroup 1 --ulog-prefix \"RULE 8 -- DENY \" --ulog-qthreshold 1 "
echo "-A RULE_8 -j DROP "
#
# Rule 9 (global)
# ipv4 address range for bug 2820152
echo "-A FORWARD -m iprange --dst-range 192.168.1.1-192.168.1.100 -m state --state NEW -j ACCEPT "
#
# Rule 10 (global)
# ipv4 address range for bug 2820152
echo "-A INPUT -d 255.255.255.255 -m state --state NEW -j ACCEPT "
#
# Rule 11 (global)
echo ":RULE_11 - [0:0]"
echo "-A FORWARD -j RULE_11 "
echo "-A RULE_11 -j ULOG --ulog-nlgroup 1 --ulog-prefix \"RULE 11 -- DENY \" --ulog-qthreshold 1 "
echo "-A RULE_11 -j DROP "
#
echo COMMIT
echo '*nat'
# ================ Table 'nat', rule set NAT
echo :PREROUTING ACCEPT [0:0]
echo :POSTROUTING ACCEPT [0:0]
echo :OUTPUT ACCEPT [0:0]
#
# Rule 0 (NAT)
echo "-A POSTROUTING -o eth1 -s 1.1.1.0/24 -j MASQUERADE "
#
echo COMMIT
) | $IPTABLES_RESTORE; IPTABLES_RESTORE_RES=$?
test $IPTABLES_RESTORE_RES != 0 && run_epilog_and_exit $IPTABLES_RESTORE_RES
# ================ IPv6
(
echo '*filter'
# ================ Table 'filter', automatic rules
echo :INPUT DROP [0:0]
echo :FORWARD DROP [0:0]
echo :OUTPUT DROP [0:0]
# accept established sessions
echo "-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT "
echo "-A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT "
echo "-A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT "
# drop packets that do not match any valid state and log them
echo ":drop_invalid - [0:0]"
echo "-A OUTPUT -m state --state INVALID -j drop_invalid "
echo "-A INPUT -m state --state INVALID -j drop_invalid "
echo "-A FORWARD -m state --state INVALID -j drop_invalid "
echo "-A drop_invalid -j LOG --log-level debug --log-prefix \"INVALID state -- DENY \""
echo "-A drop_invalid -j DROP "
# ================ Table 'filter', rule set Policy
#
# Rule 0 (global)
echo ":In_RULE_0 - [0:0]"
echo "-A INPUT -m state --state NEW -j In_RULE_0 "
echo "-A In_RULE_0 -j LOG --log-level info --log-prefix \"RULE 0 -- ACCEPT \""
echo "-A In_RULE_0 -j ACCEPT "
#
# Rule 6 (global)
# for bug 2047082
#
echo "-A OUTPUT -m state --state NEW -j ACCEPT "
#
# Rule 7 (global)
echo "-A FORWARD -d 6bone.net -m state --state NEW -j ACCEPT "
echo "-A FORWARD -d ny6ix.net -m state --state NEW -j ACCEPT "
#
# Rule 8 (global)
# firewall-ipv6-4-1:Policy:8: error: DNSName object "6bone.net (ct)" (compile time) can not resolve dns name "6bone.net" (AF_INET6): Host or network '6bone.net' not found; last error: Unknown error Using dummy address in test mode
echo ":RULE_8 - [0:0]"
echo "-A FORWARD -d 2001:db8::1 -j RULE_8 "
echo "-A RULE_8 -j LOG --log-level info --log-prefix \"RULE 8 -- DENY \""
echo "-A RULE_8 -j DROP "
#
# Rule 11 (global)
echo ":RULE_11 - [0:0]"
echo "-A FORWARD -j RULE_11 "
echo "-A RULE_11 -j LOG --log-level info --log-prefix \"RULE 11 -- DENY \""
echo "-A RULE_11 -j DROP "
#
echo COMMIT
echo '*nat'
# ================ Table 'nat', rule set NAT
echo :PREROUTING ACCEPT [0:0]
echo :POSTROUTING ACCEPT [0:0]
echo :OUTPUT ACCEPT [0:0]
#
# Rule 0 (NAT)
echo "-A POSTROUTING -o eth1 -s fe80::/64 -j MASQUERADE "
#
echo COMMIT
) | $IP6TABLES_RESTORE; IPTABLES_RESTORE_RES=$?
test $IPTABLES_RESTORE_RES != 0 && run_epilog_and_exit $IPTABLES_RESTORE_RES
}
ip_forward() {
:
echo 1 > /proc/sys/net/ipv4/ip_forward
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
}
reset_all() {
:
reset_iptables_v4
reset_iptables_v6
}
block_action() {
reset_all
}
stop_action() {
reset_all
$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -P INPUT ACCEPT
$IPTABLES -P FORWARD ACCEPT
$IP6TABLES -P OUTPUT ACCEPT
$IP6TABLES -P INPUT ACCEPT
$IP6TABLES -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 "$cmd" in
start)
log "Activating firewall script generated Sun Apr 10 17:53:39 2011 by vadim"
check_tools
prolog_commands
check_run_time_address_table_files
load_modules "nat ipv6"
configure_interfaces
verify_interfaces
script_body
ip_forward
epilog_commands
RETVAL=$?
;;
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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