src/initscripts/system/rngd

   1 #!/bin/sh
   2 ########################################################################
   3 # Begin $rc_base/init.d/rngd
   4 #
   5 # Description : Random Number Generator Daemon
   6 #
   7 # Authors     : Michael Tremer <michael.tremer@ipfire.org>
   8 #
   9 ########################################################################
  10
  11 . /etc/sysconfig/rc
  12 . ${rc_functions}
  13
  14 function has_rdrand() {
  15         grep -q "rdrand" /proc/cpuinfo
  16 }
  17
  18 function has_hwrng() {
  19         [ -e "/dev/hwrng" ]
  20 }
  21
  22 case "${1}" in
  23         start)
  24                 if ! has_hwrng && ! has_rdrand; then
  25                         boot_mesg "No Hardware Random Number Generator found..."
  26                         echo_warning
  27                         exit 0
  28                 fi
  29
  30                 boot_mesg "Starting Random Number Generator Daemon..."
  31                 loadproc /usr/sbin/rngd --quiet
  32                 ;;
  33
  34         stop)
  35                 boot_mesg "Stopping Random Number Generator Daemon..."
  36                 killproc -p /var/run/rngd.pid /usr/sbin/rngd
  37                 ;;
  38
  39         restart)
  40                 ${0} stop
  41                 sleep 1
  42                 ${0} start
  43                 ;;
  44
  45         status)
  46                 statusproc /usr/sbin/rngd
  47                 ;;
  48
  49         udev-event)
  50                 $0 restart &>/dev/null
  51                 ;;
  52
  53         *)
  54                 echo "Usage: ${0} {start|stop|restart|status}"
  55                 exit 1
  56                 ;;
  57 esac
  58
  59 # End $rc_base/init.d/rngd