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ipsec revision 1.11.8.1 
      1 #!/bin/sh
      2 #
      3 # $NetBSD: ipsec,v 1.11.8.1 2014/05/22 11:27:20 yamt Exp $
      4 #
      5 
      6 # PROVIDE: ipsec
      7 # REQUIRE: root bootconf mountcritlocal tty
      8 # BEFORE:  DAEMON
      9 
     10 $_rc_subr_loaded . /etc/rc.subr
     11 
     12 name="ipsec"
     13 rcvar=$name
     14 start_precmd="ipsec_prestart"
     15 start_cmd="ipsec_start"
     16 stop_precmd="test -f /etc/ipsec.conf"
     17 stop_cmd="ipsec_stop"
     18 reload_cmd="ipsec_reload"
     19 extra_commands="reload"
     20 
     21 ipsec_prestart()
     22 {
     23 	if [ ! -f /etc/ipsec.conf ]; then
     24 		warn "/etc/ipsec.conf not readable; ipsec start aborted."
     25 
     26 		stop_boot
     27 		return 1
     28 	fi
     29 	return 0
     30 }
     31 
     32 ipsec_getip() {
     33 	ifconfig $1 | while read what address rest; do
     34 		case "$what" in
     35 		inet)	echo "$address";;
     36 		esac
     37 	done
     38 }
     39 
     40 ipsec_load() {
     41 	if [ -z "$1" ]; then
     42 		/sbin/setkey -f /etc/ipsec.conf
     43 	else
     44 		sed -e "s/@LOCAL_ADDR@/$1/" < /etc/ipsec.conf | \
     45 		    /sbin/setkey -f -
     46 	fi
     47 }
     48 
     49 ipsec_configure() {
     50 	while true; do
     51 		local addr="$(ipsec_getip "$ipsec_flags")"
     52 		case "$addr" in
     53 		'')		sleep 1;;
     54 		"0.0.0.0")	sleep 1;;
     55 		*)		ipsec_load "$addr"; return;;
     56 		esac
     57 	done &
     58 }
     59 
     60 ipsec_start()
     61 {
     62 	echo "Installing ipsec manual keys/policies."
     63 	if [ -n "$ipsec_flags" ]; then
     64 		ipsec_configure
     65 	else
     66 		ipsec_load
     67 	fi
     68 }
     69 
     70 ipsec_stop()
     71 {
     72 	echo "Clearing ipsec manual keys/policies."
     73 
     74 	# still not 100% sure if we would like to do this.
     75 	# it is very questionable to do this during shutdown session, since
     76 	# it can hang any of remaining IPv4/v6 session.
     77 	#
     78 	/sbin/setkey -F
     79 	/sbin/setkey -FP
     80 }
     81 
     82 ipsec_reload()
     83 {
     84 	echo "Reloading ipsec manual keys/policies."
     85 	ipsec_stop
     86 	ipsec_start
     87 }
     88 
     89 load_rc_config $name
     90 run_rc_command "$1"
     91