NetBSD/etc/rc.d/ipsec

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#!/bin/sh
#
# $NetBSD: ipsec,v 1.15 2018/08/13 09:16:06 christos Exp $
#
# PROVIDE: ipsec
# REQUIRE: root bootconf mountcritlocal tty
# BEFORE: DAEMON
$_rc_subr_loaded . /etc/rc.subr
name="ipsec"
rcvar=$name
start_precmd="ipsec_prestart"
start_cmd="ipsec_start"
stop_precmd="test -f /etc/ipsec.conf"
stop_cmd="ipsec_stop"
reload_cmd="ipsec_reload"
extra_commands="reload"
ipsec_prestart()
{
if [ ! -f /etc/ipsec.conf ]; then
warn "/etc/ipsec.conf not readable; ipsec start aborted."
stop_boot
return 1
fi
return 0
}
ipsec_getip() {
ifconfig $1 | while IFS="${IFS}/" read what address rest; do
case "$what" in
inet) echo "local v4_addr=$address;";;
inet6) case "$address" in
fe80:) ;;
*) echo "local v6_addr=$address;";;
esac;;
esac
done
}
ipsec_load() {
if [ -z "$1" ]; then
/sbin/setkey -f /etc/ipsec.conf
else
sed -e "s/@LOCAL_ADDR@/$1/" \
-e "s/@LOCAL_ADDR_V4@/$1/" \
-e "s/@LOCAL_ADDR_V6@/$2/" /etc/ipsec.conf | \
/sbin/setkey -f -
fi
}
ipsec_configure() {
while true; do
eval $(ipsec_getip "$ipsec_flags")
case "$v4_addr" in
'') sleep 1;;
"0.0.0.0") sleep 1;;
*) ipsec_load "$v4_addr" "$v6_addr"; return;;
esac
done &
}
ipsec_start()
{
echo "Installing ipsec manual keys/policies."
if [ -n "$ipsec_flags" ]; then
ipsec_configure
else
ipsec_load
fi
}
ipsec_stop()
{
echo "Clearing ipsec manual keys/policies."
# still not 100% sure if we would like to do this.
# it is very questionable to do this during shutdown session, since
# it can hang any of remaining IPv4/v6 session.
#
/sbin/setkey -F
/sbin/setkey -FP
}
ipsec_reload()
{
echo "Reloading ipsec manual keys/policies."
ipsec_stop
ipsec_start
}
load_rc_config $name
run_rc_command "$1"