Home | History | Annotate | Line # | Download | only in rc.d 
      1 #!/bin/sh
      2 #
      3 # $NetBSD: entropy,v 1.1 2021/01/10 23:24:25 riastradh Exp $
      4 #
      5 
      6 # PROVIDE: entropy
      7 # REQUIRE: random_seed rndctl
      8 # BEFORE: ike ipsec network
      9 
     10 $_rc_subr_loaded . /etc/rc.subr
     11 
     12 name="entropy"
     13 start_cmd="entropy_start"
     14 stop_cmd=":"
     15 
     16 entropy_start()
     17 {
     18 	case ${entropy-} in
     19 	'')	;;
     20 	check)	echo -n "Checking for entropy..."
     21 		# dd will print an error message `Resource temporarily
     22 		# unavailable' to stderr, which is a little annoying,
     23 		# but getting rid of it is also a little annoying.
     24 		if dd if=/dev/random iflag=nonblock of=/dev/null bs=1 count=1 \
     25 		    msgfmt=quiet; then
     26 			echo "done"
     27 		else
     28 			echo "not enough entropy available, aborting boot."
     29 			stop_boot
     30 		fi
     31 		;;
     32 	wait)	echo -n "Waiting for entropy..."
     33 		dd if=/dev/random of=/dev/null bs=1 count=1 msgfmt=quiet
     34 		echo "done"
     35 		;;
     36 	esac
     37 }
     38 
     39 load_rc_config "$name"
     40 run_rc_command "$1"
     41