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