diff options
Diffstat (limited to 'net-firewall/iptables/files/iptables.init')
-rwxr-xr-x | net-firewall/iptables/files/iptables.init | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/net-firewall/iptables/files/iptables.init b/net-firewall/iptables/files/iptables.init new file mode 100755 index 000000000000..440e840c41a8 --- /dev/null +++ b/net-firewall/iptables/files/iptables.init @@ -0,0 +1,130 @@ +#!/sbin/runscript +# Copyright 1999-2013 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Id$ + +extra_commands="check save panic" +extra_started_commands="reload" + +iptables_name=${SVCNAME} +case ${iptables_name} in +iptables|ip6tables) ;; +*) iptables_name="iptables" ;; +esac + +iptables_bin="/sbin/${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() { + need localmount #434774 + before net +} + +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 + checkrules || 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 +} + +checkrules() { + ebegin "Checking rules" + ${iptables_bin}-restore --test ${SAVE_RESTORE_OPTIONS} < "${iptables_save}" + eend $? +} + +check() { + # Short name for users of init.d script. + checkrules +} + +save() { + ebegin "Saving ${iptables_name} state" + checkpath -q -d "$(dirname "${iptables_save}")" + checkpath -q -m 0600 -f "${iptables_save}" + ${iptables_bin}-save ${SAVE_RESTORE_OPTIONS} > "${iptables_save}" + eend $? +} + +panic() { + checkkernel || return 1 + if service_started ${iptables_name}; then + rc-service ${iptables_name} stop + fi + + 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 $? +} |