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Take into account hardware-supplied entropy. If the entropy source

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is hardware, the Yarrow initialisations don't need to be done.
This commit is contained in:
Mark Murray 2004-04-09 15:56:16 +00:00
parent e7806b4c0e
commit 37c79b8006
1 changed files with 42 additions and 35 deletions
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77
etc/rc.d/initrandom
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@ -23,50 +23,57 @@ feed_dev_random()
initrandom_start()
{
soft_random_generator=`sysctl kern.random 2>/dev/null`
echo -n 'Entropy harvesting:'
if checkyesno harvest_interrupt; then
if [ -w /dev/random ]; then
${SYSCTL_W} kern.random.sys.harvest.interrupt=1 >/dev/null
echo -n ' interrupts'
fi
fi
if [ \! -z "${soft_random_generator}" ] ; then
if checkyesno harvest_ethernet; then
if [ -w /dev/random ]; then
${SYSCTL_W} kern.random.sys.harvest.ethernet=1 >/dev/null
echo -n ' ethernet'
if checkyesno harvest_interrupt; then
if [ -w /dev/random ]; then
${SYSCTL_W} kern.random.sys.harvest.interrupt=1 >/dev/null
echo -n ' interrupts'
fi
fi
fi
if checkyesno harvest_p_to_p; then
if [ -w /dev/random ]; then
${SYSCTL_W} kern.random.sys.harvest.point_to_point=1 >/dev/null
echo -n ' point_to_point'
if checkyesno harvest_ethernet; then
if [ -w /dev/random ]; then
${SYSCTL_W} kern.random.sys.harvest.ethernet=1 >/dev/null
echo -n ' ethernet'
fi
fi
if checkyesno harvest_p_to_p; then
if [ -w /dev/random ]; then
${SYSCTL_W} kern.random.sys.harvest.point_to_point=1 >/dev/null
echo -n ' point_to_point'
fi
fi
# XXX temporary until we can improve the entropy
# harvesting rate.
# Entropy below is not great, but better than nothing.
# This unblocks the generator at startup
( ps -fauxww; sysctl -a; date; df -ib; dmesg; ps -fauxww; ) \
| dd of=/dev/random bs=8k 2>/dev/null
cat /bin/ls | dd of=/dev/random bs=8k 2>/dev/null
# First pass at reseeding /dev/random.
#
case ${entropy_file} in
[Nn][Oo] | '')
;;
*)
if [ -w /dev/random ]; then
feed_dev_random "${entropy_file}"
fi
;;
esac
echo -n ' kickstart'
fi
echo '.'
# First pass at reseeding /dev/random.
#
case ${entropy_file} in
[Nn][Oo] | '')
;;
*)
if [ -w /dev/random ]; then
feed_dev_random "${entropy_file}"
fi
;;
esac
# XXX temporary until we can get the entropy
# harvesting rate up
# Entropy below is not great,
# but better than nothing.
( ps -fauxww; sysctl -a; date; df -ib; dmesg; ps -fauxww; ) \
| dd of=/dev/random bs=8k 2>/dev/null
cat /bin/ls | dd of=/dev/random bs=8k 2>/dev/null
}
load_rc_config random