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|
#!/bin/sh
#
# $NetBSD: ipfilter,v 1.10 2001/02/28 17:03:50 lukem Exp $
# $FreeBSD$
#
# PROVIDE: ipfilter
# REQUIRE: root beforenetlkm mountcritlocal ipmon
# BEFORE: netif
# KEYWORD: FreeBSD NetBSD
. /etc/rc.subr
name="ipfilter"
rcvar=`set_rcvar`
load_rc_config $name
case ${OSTYPE} in
FreeBSD)
stop_precmd="test -f ${ipfilter_rules} -o -f ${ipv6_ipfilter_rules}"
;;
NetBSD)
stop_precmd="test -f /etc/ipf.conf -o -f /etc/ipf6.conf"
;;
esac
start_precmd="ipfilter_prestart"
start_cmd="ipfilter_start"
stop_cmd="ipfilter_stop"
reload_precmd="$stop_precmd"
reload_cmd="ipfilter_reload"
resync_precmd="$stop_precmd"
resync_cmd="ipfilter_resync"
status_precmd="$stop_precmd"
status_cmd="ipfilter_status"
extra_commands="reload resync status"
ipfilter_prestart()
{
case ${OSTYPE} in
FreeBSD)
# load ipfilter kernel module if needed
if ! sysctl net.inet.ipf.fr_pass > /dev/null 2>&1; then
if kldload ipl; then
info 'IP-filter module loaded.'
else
err 1 'IP-filter module failed to load.'
fi
fi
# check for ipfilter rules
if [ ! -r "${ipfilter_rules}" ] && [ ! -r "${ipv6_ipfilter_rules}" ]
then
warn 'IP-filter: NO IPF RULES'
return 1
fi
;;
NetBSD)
if [ ! -f /etc/ipf.conf ] && [ ! -f /etc/ipf6.conf ]; then
warn "/etc/ipf*.conf not readable; ipfilter start aborted."
#
# If booting directly to multiuser, send SIGTERM to
# the parent (/etc/rc) to abort the boot
#
if [ "$autoboot" = yes ]; then
echo "ERROR: ABORTING BOOT (sending SIGTERM to parent)!"
kill -TERM $$
exit 1
fi
return 1
fi
;;
esac
return 0
}
ipfilter_start()
{
echo "Enabling ipfilter."
case ${OSTYPE} in
FreeBSD)
${ipfilter_program:-/sbin/ipf} -EFa
if [ -r "${ipfilter_rules}" ]; then
${ipfilter_program:-/sbin/ipf} \
-f "${ipfilter_rules}" ${ipfilter_flags}
fi
${ipfilter_program:-/sbin/ipf} -6 -EFa
if [ -r "${ipv6_ipfilter_rules}" ]; then
${ipfilter_program:-/sbin/ipf} -6 \
-f "${ipv6_ipfilter_rules}" ${ipfilter_flags}
fi
;;
NetBSD)
/sbin/ipf -E -Fa
if [ -f /etc/ipf.conf ]; then
/sbin/ipf -f /etc/ipf.conf
fi
if [ -f /etc/ipf6.conf ]; then
/sbin/ipf -6 -f /etc/ipf6.conf
fi
;;
esac
}
ipfilter_stop()
{
case ${OSTYPE} in
FreeBSD)
echo "Saving firewall state tables"
${ipfs_program:-/sbin/ipfs} -W ${ipfs_flags}
;;
NetBSD)
;;
esac
# XXX - The following command is not effective for 'lkm's
echo "Disabling ipfilter."
/sbin/ipf -D
}
ipfilter_reload()
{
echo "Reloading ipfilter rules."
case ${OSTYPE} in
FreeBSD)
${ipfilter_program:-/sbin/ipf} -I -Fa
if [ -r "${ipfilter_rules}" ]; then
${ipfilter_program:-/sbin/ipf} -I \
-f "${ipfilter_rules}" ${ipfilter_flags}
fi
${ipfilter_program:-/sbin/ipf} -I -6 -Fa
if [ -r "${ipv6_ipfilter_rules}" ]; then
${ipfilter_program:-/sbin/ipf} -I -6 \
-f "${ipv6_ipfilter_rules}" ${ipfilter_flags}
fi
${ipfilter_program:-/sbin/ipf} -s
;;
NetBSD)
/sbin/ipf -I -Fa
if [ -f /etc/ipf.conf ] && ! /sbin/ipf -I -f /etc/ipf.conf; then
err 1 "reload of ipf.conf failed; not swapping to" \
" new ruleset."
fi
if [ -f /etc/ipf6.conf ] && \
! /sbin/ipf -I -6 -f /etc/ipf6.conf; then
err 1 "reload of ipf6.conf failed; not swapping to" \
" new ruleset."
fi
/sbin/ipf -s
;;
esac
}
ipfilter_resync()
{
case ${OSTYPE} in
FreeBSD)
# Don't resync if ipfilter is not loaded
[ sysctl net.inet.ipf.fr_pass > /dev/null 2>&1 ] && return
;;
esac
${ipfilter_program:-/sbin/ipf} -y ${ipfilter_flags}
}
ipfilter_status()
{
${ipfilter_program:-/sbin/ipf} -V
}
run_rc_command "$1"
|
