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#!/sbin/runscript |
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# Copyright 2014 Nicholas Vinson |
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# Copyright 1999-2014 Gentoo Foundation |
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# Distributed under the terms of the GNU General Public License v2 |
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extra_commands="clear list panic save" |
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extra_started_commands="reload" |
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depend() { |
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need localmount #434774 |
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before net |
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} |
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|
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start_pre() { |
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checkkernel || return 1 |
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checkconfig || return 1 |
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return 0 |
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} |
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clear() { |
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/usr/libexec/nftables/nftables.sh clear || return 1 |
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return 0 |
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} |
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list() { |
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/usr/libexec/nftables/nftables.sh list || return 1 |
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return 0 |
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} |
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panic() { |
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checkkernel || return 1 |
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if service_started ${RC_SVCNAME}; then |
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rc-service ${RC_SVCNAME} stop |
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fi |
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|
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ebegin "Dropping all packets" |
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clear |
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if nft create table ip filter >/dev/null 2>&1; then |
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nft -f /dev/stdin <<-EOF |
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table ip filter { |
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chain input { |
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type filter hook input priority 0; |
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drop |
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} |
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chain forward { |
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type filter hook forward priority 0; |
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drop |
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} |
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chain output { |
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type filter hook output priority 0; |
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drop |
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} |
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} |
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EOF |
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fi |
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if nft create table ip6 filter >/dev/null 2>&1; then |
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nft -f /dev/stdin <<-EOF |
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table ip6 filter { |
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chain input { |
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type filter hook input priority 0; |
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drop |
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} |
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chain forward { |
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type filter hook forward priority 0; |
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drop |
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} |
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chain output { |
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type filter hook output priority 0; |
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drop |
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} |
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} |
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EOF |
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fi |
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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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clear |
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start |
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} |
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save() { |
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ebegin "Saving nftables state" |
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checkpath -q -d "$(dirname "${NFTABLES_SAVE}")" |
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checkpath -q -m 0600 -f "${NFTABLES_SAVE}" |
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/usr/libexec/nftables/nftables.sh store ${NFTABLES_SAVE} |
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return $? |
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} |
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start() { |
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ebegin "Loading nftables state and starting firewall" |
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clear |
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/usr/libexec/nftables/nftables.sh load ${NFTABLES_SAVE} |
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eend $? |
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} |
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stop() { |
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if yesno ${SAVE_ON_STOP:-yes}; then |
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save || return 1 |
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fi |
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ebegin "Stopping firewall" |
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clear |
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eend $? |
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} |
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checkconfig() { |
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if [ ! -f ${NFTABLES_SAVE} ]; then |
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eerror "Not starting nftables. First create some rules then run:" |
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eerror "rc-service nftables save" |
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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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checkkernel() { |
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if ! nft list tables >/dev/null 2>&1; then |
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eerror "Your kernel lacks nftables 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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} |
