119 lines
2.8 KiB
Plaintext
119 lines
2.8 KiB
Plaintext
#!/sbin/openrc-run
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# Copyright 1999-2011 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/net-firewall/iptables/files/iptables-1.4.11.init,v 1.2 2011/12/04 10:15:59 swegener Exp $
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# Modified: caskd <caskd@redxen.eu>
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description="IPv4/IPv6 packet filtering and NAT"
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description_save="Save firewall state"
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description_panic="Drop all packets"
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description_reload="Reload configuration"
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extra_commands="save panic"
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extra_started_commands="reload"
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iptables_name=${SVCNAME##*.}
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if [ "${iptables_name}" != "iptables" -a "${iptables_name}" != "ip6tables" ] ; then
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iptables_name="iptables"
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fi
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iptables_bin="/sbin/${iptables_name}"
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iptables_dir="${IPTABLES_DIR}"
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case ${iptables_name} in
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iptables) iptables_proc="/proc/net/ip_tables_names";;
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ip6tables) iptables_proc="/proc/net/ip6_tables_names";;
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esac
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depend() {
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before net
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after sysctl
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use logger
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provide firewall
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}
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set_table_policy() {
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local chains table=$1 policy=$2
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case ${table} in
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nat) chains="PREROUTING POSTROUTING OUTPUT";;
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mangle) chains="PREROUTING INPUT FORWARD OUTPUT POSTROUTING";;
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filter) chains="INPUT FORWARD OUTPUT";;
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*) chains="";;
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esac
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local chain
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for chain in ${chains} ; do
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${iptables_bin} -w 5 -t ${table} -P ${chain} ${policy}
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done
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}
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checkkernel() {
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if [ ! -e ${iptables_proc} ]; then
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eerror "Your kernel lacks ${iptables_name} support, please load"
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eerror "appropriate modules and try again."
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return 1
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fi
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return 0
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}
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checkconfig() {
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if [ ! -d "${iptables_dir}" ]; then
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eerror "The iptables directory ${iptables_dir} doesn't exist"
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return 1
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fi
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return 0
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}
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start() {
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checkconfig || return 1
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restore_file="$(mktemp)"
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einfo "Merging ${iptables_name} rules into ${restore_file}"
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for i in "filter" "mangle" "raw" "nat" "security"; do
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[ -f "${iptables_dir}/$i" ] && cat "${iptables_dir}/$i" "${iptables_dir}/$i-rules"/* "${iptables_dir}/commit" >> "${restore_file}"
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done
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ebegin "Loading ${iptables_name} state and starting firewall"
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${iptables_bin}-restore ${SAVE_RESTORE_OPTIONS} < "${restore_file}"
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eend $?
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}
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stop() {
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checkkernel || return 1
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ebegin "Stopping firewall"
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local a
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for a in $(cat ${iptables_proc}); do
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set_table_policy $a ACCEPT
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${iptables_bin} -w 5 -F -t $a
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${iptables_bin} -w 5 -X -t $a
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done
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eend $?
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}
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reload() {
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checkkernel || return 1
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ebegin "Flushing firewall"
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local a
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for a in $(cat ${iptables_proc}); do
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${iptables_bin} -w 5 -F -t $a
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${iptables_bin} -w 5 -X -t $a
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done
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eend $?
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start
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}
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panic() {
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checkkernel || return 1
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if service_started ${iptables_name}; then
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rc-service ${iptables_name} stop
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fi
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local a
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ebegin "Dropping all packets"
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for a in $(cat ${iptables_proc}); do
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${iptables_bin} -w 5 -F -t $a
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${iptables_bin} -w 5 -X -t $a
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set_table_policy $a DROP
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done
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eend $?
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}
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