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#!/sbin/openrc-run
# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
extra_commands="check clear list panic save soft_panic"
extra_started_commands="reload"
depend() {
need localmount #434774
before net
}
checkkernel() {
if ! /sbin/nft list ruleset >/dev/null 2>/dev/null ; then
eerror "Your kernel lacks nftables support, please load"
eerror "appropriate modules and try again."
return 1
fi
return 0
}
checkconfig() {
if [ -z "${NFTABLES_SAVE}" ] || [ ! -f "${NFTABLES_SAVE}" ] ; then
eerror "Not starting nftables. First create some rules then run:"
eerror "/etc/init.d/${SVCNAME} save"
return 1
fi
return 0
}
_nftables() {
export NFTABLES_SAVE SAVE_OPTIONS
/usr/libexec/nftables/nftables.sh "${@}"
}
start_pre() {
checkconfig || return 1
checkkernel || return 1
check || return 1
}
start() {
ebegin "Loading ${SVCNAME} state and starting firewall"
_nftables load "${NFTABLES_SAVE}"
eend ${?}
}
stop() {
if [ "${SAVE_ON_STOP}" = "yes" ] ; then
save || return 1
fi
ebegin "Stopping firewall"
if [ "${PANIC_ON_STOP}" = "hard" ]; then
_nftables panic
elif [ "${PANIC_ON_STOP}" = "soft" ]; then
_nftables soft_panic
else
_nftables clear
fi
eend ${?}
}
reload() {
start_pre || return 1
start
}
clear() {
ebegin "Clearing rules"
_nftables clear
eend ${?}
}
list() {
_nftables list
}
check() {
ebegin "Checking rules"
_nftables check "${NFTABLES_SAVE}"
eend ${?}
}
save() {
ebegin "Saving ${SVCNAME} state"
checkpath -q -d "$(dirname "${NFTABLES_SAVE}")"
checkpath -q -m 0600 -f "${NFTABLES_SAVE}"
_nftables store "${NFTABLES_SAVE}"
eend ${?}
}
panic() {
if service_started "${SVCNAME}"; then
rc-service "${SVCNAME}" zap
fi
ebegin "Dropping all packets"
_nftables panic
eend ${?}
}
soft_panic() {
if service_started "${SVCNAME}"; then
rc-service "${SVCNAME}" zap
fi
ebegin "Dropping new connections"
_nftables soft_panic
eend ${?}
}
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