121 lines
2.5 KiB
Bash
Executable File
121 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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#
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# $NetBSD: ipfilter,v 1.10 2001/02/28 17:03:50 lukem Exp $
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# $FreeBSD$
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#
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# PROVIDE: ipfilter
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# REQUIRE: root mountcritlocal ipmon
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# BEFORE: netif
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# KEYWORD: FreeBSD
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. /etc/rc.subr
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name="ipfilter"
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rcvar=`set_rcvar`
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load_rc_config $name
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stop_precmd="test -f ${ipfilter_rules} -o -f ${ipv6_ipfilter_rules}"
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start_precmd="ipfilter_prestart"
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start_cmd="ipfilter_start"
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stop_cmd="ipfilter_stop"
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reload_precmd="$stop_precmd"
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reload_cmd="ipfilter_reload"
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resync_precmd="$stop_precmd"
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resync_cmd="ipfilter_resync"
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status_precmd="$stop_precmd"
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status_cmd="ipfilter_status"
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extra_commands="reload resync status"
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ipfilter_loaded()
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{
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if ! kldstat -v | grep "IP Filter" > /dev/null 2>&1; then
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return 1
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else
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return 0
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fi
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}
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ipfilter_prestart()
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{
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# load ipfilter kernel module if needed
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if ! ipfilter_loaded; then
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if kldload ipl; then
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info 'IP-filter module loaded.'
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else
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err 1 'IP-filter module failed to load.'
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fi
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fi
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# check for ipfilter rules
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if [ ! -r "${ipfilter_rules}" ] && [ ! -r "${ipv6_ipfilter_rules}" ]
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then
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warn 'IP-filter: NO IPF RULES'
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return 1
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fi
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return 0
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}
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ipfilter_start()
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{
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echo "Enabling ipfilter."
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if [ `sysctl -n net.inet.ipf.fr_running` -eq 0 ]; then
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${ipfilter_program:-/sbin/ipf} -E
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fi
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${ipfilter_program:-/sbin/ipf} -Fa
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if [ -r "${ipfilter_rules}" ]; then
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${ipfilter_program:-/sbin/ipf} \
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-f "${ipfilter_rules}" ${ipfilter_flags}
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fi
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${ipfilter_program:-/sbin/ipf} -6 -Fa
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if [ -r "${ipv6_ipfilter_rules}" ]; then
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${ipfilter_program:-/sbin/ipf} -6 \
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-f "${ipv6_ipfilter_rules}" ${ipfilter_flags}
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fi
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}
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ipfilter_stop()
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{
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# XXX - The ipf -D command is not effective for 'lkm's
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if [ `sysctl -n net.inet.ipf.fr_running` -eq 1 ]; then
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echo "Saving firewall state tables"
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${ipfs_program:-/sbin/ipfs} -W ${ipfs_flags}
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echo "Disabling ipfilter."
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${ipfilter_program:-/sbin/ipf} -D
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fi
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}
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ipfilter_reload()
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{
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echo "Reloading ipfilter rules."
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${ipfilter_program:-/sbin/ipf} -I -Fa
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if [ -r "${ipfilter_rules}" ]; then
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${ipfilter_program:-/sbin/ipf} -I \
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-f "${ipfilter_rules}" ${ipfilter_flags}
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fi
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${ipfilter_program:-/sbin/ipf} -I -6 -Fa
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if [ -r "${ipv6_ipfilter_rules}" ]; then
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${ipfilter_program:-/sbin/ipf} -I -6 \
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-f "${ipv6_ipfilter_rules}" ${ipfilter_flags}
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fi
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${ipfilter_program:-/sbin/ipf} -s
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}
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ipfilter_resync()
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{
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# Don't resync if ipfilter is not loaded
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if ! ipfilter_loaded; then
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return
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fi
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${ipfilter_program:-/sbin/ipf} -y ${ipfilter_flags}
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}
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ipfilter_status()
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{
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${ipfilter_program:-/sbin/ipf} -V
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}
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run_rc_command "$1"
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