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|
#!/bin/sh
#
# This is automatically generated file. DO NOT MODIFY !
#
# Firewall Builder fwb_ipf v4.2.0.3499
#
# Generated Sat Mar 12 19:44:26 2011 PST by vadim
#
# files: * firewall.fw ipf.fw
# files: firewall-ipf.conf ipf.conf
# files: firewall-nat.conf nat.conf
#
# Compiled for ipf
#
# this is simple firewall with two interfaces. Test regular policy rules, including IP_fragments rule
# firewall:Policy:4: warning: Changing rule direction due to self reference
# firewall:Policy:8: warning: Changing rule direction due to self reference
# firewall:Policy:19: warning: Changing rule direction due to self reference
# firewall:Policy:19: warning: Changing rule direction due to self reference
# firewall:Policy:20: warning: Changing rule direction due to self reference
# firewall:Policy:: warning: ipfilter can not match "any IP option"
# firewall:Policy:: warning: ipfilter can not match "any IP option"
FWDIR=`dirname $0`
IFCONFIG="/sbin/ifconfig"
PFCTL="/sbin/pfctl"
IPFW="/sbin/ipfw"
IPF="/sbin/ipf"
IPNAT="/sbin/ipnat"
SYSCTL="/sbin/sysctl"
LOGGER="/usr/bin/logger"
log() {
echo "$1"
command -v "$LOGGER" >/dev/null 2>&1 && $LOGGER -p info "$1"
}
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
}
missing_address() {
address=$1
cmd=$2
oldIFS=$IFS
IFS="@"
set $address
addr=$1
interface=$2
IFS=$oldIFS
if echo "$addr" | grep -q ':'
then
inet="inet6"
addr=$(echo "$addr" | sed 's!/! prefixlen !')
else
inet="inet"
addr=$(echo "$addr" | sed 's!/! netmask !')
fi
parameter=""
test "$cmd" = "add" && {
echo "# Adding ip address: $interface $addr"
parameter="alias"
}
test "$cmd" = "del" && {
echo "# Removing ip address: $interface $addr"
parameter="delete"
}
$FWBDEBUG $IFCONFIG $interface $inet $addr $parameter || exit 1
$FWBDEBUG $IFCONFIG $interface up
}
list_addresses_by_scope() {
interface=$1
scope=$2
ignore_list=$3
scope_regex="1"
if test -n "$scope"; then scope_regex=" \$0 !~ \"$scope\" "; fi
$IFCONFIG $interface | sed "s/%$interface//" | \
awk -v IGNORED="$ignore_list" \
"BEGIN {
split(IGNORED,ignored_arr);
for (a in ignored_arr) {ignored_dict[ignored_arr[a]]=1;}
}
(/inet |inet6 / && $scope_regex && !(\$2 in ignored_dict)) {printf \"%s/%s\n\",\$2,\$4;}" | \
while read addr; do
echo "${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=""
$IFCONFIG $interface >/dev/null 2>&1 && {
CURRENT_ADDRS_ALL_SCOPES=$(list_addresses_by_scope $interface '' "$ignore_list")
CURRENT_ADDRS_GLOBAL_SCOPE=$(list_addresses_by_scope $interface 'scopeid .*' "$ignore_list")
} || {
echo "# Interface $interface does not exist"
# Stop the script if we are not in test mode
test -z "$FWBDEBUG" && exit 1
}
echo "$interface" | grep -q carp && {
diff_intf missing_address "$CURRENT_ADDRS_GLOBAL_SCOPE" "$FWB_ADDRS" del
diff_intf missing_address "$FWB_ADDRS" "$CURRENT_ADDRS_ALL_SCOPES" add
} || {
diff_intf missing_address "$FWB_ADDRS" "$CURRENT_ADDRS_ALL_SCOPES" add
diff_intf missing_address "$CURRENT_ADDRS_GLOBAL_SCOPE" "$FWB_ADDRS" del
}
}
verify_interfaces() {
:
}
set_kernel_vars() {
:
}
prolog_commands() {
:
}
epilog_commands() {
:
}
run_epilog_and_exit() {
epilog_commands
exit $1
}
configure_interfaces() {
:
update_addresses_of_interface "eth0 192.168.1.1/0xffffff00" ""
update_addresses_of_interface "eth1 222.222.222.222/0xffffff00" ""
update_addresses_of_interface "lo 127.0.0.1/0xff000000" ""
}
log "Activating firewall script generated Sat Mar 12 19:44:26 2011 by vadim"
set_kernel_vars
configure_interfaces
prolog_commands
$IPF -Fa
$IPNAT -C
$IPF -I -f ipf.conf
$IPNAT -f nat.conf
$IPF -s
epilog_commands
/sbin/kldstat -n ipl.ko > /dev/null 2>&1 || $IPF -E
|
