diff options
Diffstat (limited to 'main/iptables/iptables.initd')
-rwxr-xr-x | main/iptables/iptables.initd | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/main/iptables/iptables.initd b/main/iptables/iptables.initd new file mode 100755 index 00000000..e63d8ea9 --- /dev/null +++ b/main/iptables/iptables.initd @@ -0,0 +1,114 @@ +#!/sbin/runscript +# Copyright 1999-2007 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Header: /var/cvsroot/gentoo-x86/net-firewall/iptables/files/iptables-1.3.2.init,v 1.6 2007/03/12 21:49:04 vapier Exp $ + +opts="save reload panic" + +iptables_name=${SVCNAME} +if [ "${iptables_name}" != "iptables" -a "${iptables_name}" != "ip6tables" ] ; then + iptables_name="iptables" +fi + +iptables_bin="/sbin/${iptables_name}" +case ${iptables_name} in + iptables) iptables_proc="/proc/net/ip_tables_names" + iptables_save=${IPTABLES_SAVE};; + ip6tables) iptables_proc="/proc/net/ip6_tables_names" + iptables_save=${IP6TABLES_SAVE};; +esac + +depend() { + before net + use logger +} + +set_table_policy() { + local chains table=$1 policy=$2 + case ${table} in + nat) chains="PREROUTING POSTROUTING OUTPUT";; + mangle) chains="PREROUTING INPUT FORWARD OUTPUT POSTROUTING";; + filter) chains="INPUT FORWARD OUTPUT";; + *) chains="";; + esac + local chain + for chain in ${chains} ; do + ${iptables_bin} -t ${table} -P ${chain} ${policy} + done +} + +checkkernel() { + if [ ! -e ${iptables_proc} ] ; then + eerror "Your kernel lacks ${iptables_name} support, please load" + eerror "appropriate modules and try again." + return 1 + fi + return 0 +} +checkconfig() { + if [ ! -f ${iptables_save} ] ; then + eerror "Not starting ${iptables_name}. First create some rules then run:" + eerror "/etc/init.d/${iptables_name} save" + return 1 + fi + return 0 +} + +start() { + checkconfig || return 1 + ebegin "Loading ${iptables_name} state and starting firewall" + ${iptables_bin}-restore ${SAVE_RESTORE_OPTIONS} < "${iptables_save}" + eend $? +} + +stop() { + if [ "${SAVE_ON_STOP}" = "yes" ] ; then + save || return 1 + fi + checkkernel || return 1 + ebegin "Stopping firewall" + local a + for a in $(cat ${iptables_proc}) ; do + set_table_policy $a ACCEPT + + ${iptables_bin} -F -t $a + ${iptables_bin} -X -t $a + done + eend $? +} + +reload() { + checkkernel || return 1 + ebegin "Flushing firewall" + local a + for a in $(cat ${iptables_proc}) ; do + ${iptables_bin} -F -t $a + ${iptables_bin} -X -t $a + done + eend $? + + start +} + +save() { + ebegin "Saving ${iptables_name} state" + touch "${iptables_save}" + chmod 0600 "${iptables_save}" + ${iptables_bin}-save ${SAVE_RESTORE_OPTIONS} > "${iptables_save}" + eend $? +} + +panic() { + checkkernel || return 1 + service_started ${iptables_name} && svc_stop + + local a + ebegin "Dropping all packets" + for a in $(cat ${iptables_proc}) ; do + ${iptables_bin} -F -t $a + ${iptables_bin} -X -t $a + + set_table_policy $a DROP + done + eend $? +} |