etc/rc.d/postrandom

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: postrandom
   7 # REQUIRE: initrandom random FILESYSTEMS
   8 # BEFORE: LOGIN
   9 # KEYWORD: nojail
  10
  11 . /etc/rc.subr
  12
  13 name="postrandom"
  14 start_cmd="${name}_start"
  15 stop_cmd=":"
  16
  17 # This will remove old ${entropy_file} and generate a new one.
  18 # According to Bruce Schneier, this is strongly recommended in order
  19 # to avoid using same ${entropy_file} across reboots.
  20 # Reference: Chapter 10.6, Practical Cryptography, ISBN: 0-471-22357-3
  21
  22 postrandom_start()
  23 {
  24         /etc/rc.d/random fastsaveseed
  25
  26         case ${entropy_dir} in
  27         [Nn][Oo])
  28                 ;;
  29         *)
  30                 entropy_dir=${entropy_dir:-/var/db/entropy}
  31                 if [ -d "${entropy_dir}" ]; then
  32                         if [ -w /dev/random ]; then
  33                                 rm -f ${entropy_dir}/*
  34                         fi
  35                 fi
  36                 ;;
  37         esac
  38 }
  39
  40 load_rc_config random
  41 run_rc_command "$1"