1#!/bin/sh 2# 3# $FreeBSD: src/etc/rc.d/initrandom,v 1.1 2002/06/13 22:14:36 gordon Exp $ 4# $DragonFly: src/etc/rc.d/initrandom,v 1.6 2006/07/10 22:19:14 dillon Exp $ 5# 6 7# PROVIDE: initrandom 8# REQUIRE: initdiskless 9# BEFORE: disks 10 11. /etc/rc.subr 12 13name="initrandom" 14start_cmd="initrandom_start" 15stop_cmd=":" 16 17feed_dev_random() 18{ 19 if [ -f "${1}" -a -r "${1}" -a -s "${1}" ]; then 20 sysctl kern.seedenable=1 21 cat "${1}" | dd of=/dev/random bs=8k 2>/dev/null 22 sysctl kern.seedenable=0 23 fi 24} 25 26initrandom_start() 27{ 28 echo '.' 29 30 # First pass at reseeding /dev/random. 31 # 32 case ${entropy_file} in 33 [Nn][Oo] | '') 34 ;; 35 *) 36 if [ -w /dev/random ]; then 37 feed_dev_random "${entropy_file}" 38 fi 39 ;; 40 esac 41 42 # Mix in more junk. At the very least this will make seeding a 43 # bit more machine specific. The sysctl -a will also catch the 44 # TSC, 8254, and a few other things that tend to be somewhat more 45 # random (even from a CD boot) so it isn't all that bad. 46 # 47 sysctl kern.seedenable=1 48 ( ps -fauxww; sysctl -a; date; df -ib; dmesg; ps -fauxww; ) \ 49 2>&1 | dd of=/dev/random bs=8k 2>/dev/null 50 cat /bin/ls | dd of=/dev/random bs=8k 2>/dev/null 51 sysctl kern.seedenable=0 52} 53 54load_rc_config random 55run_rc_command "$1" 56