44 lines
981 B
Plaintext
Executable File
44 lines
981 B
Plaintext
Executable File
#!/sbin/runscript
|
|
# Copyright 1999-2007 Gentoo Foundation
|
|
# Distributed under the terms of the GNU General Public License v2
|
|
|
|
depend() {
|
|
need localmount
|
|
}
|
|
|
|
save_seed() {
|
|
local poolsize=1
|
|
|
|
if [ -e /proc/sys/kernel/random/poolsize ] ; then
|
|
poolsize=$(($(cat /proc/sys/kernel/random/poolsize) / 4096))
|
|
fi
|
|
|
|
umask 077
|
|
dd if=/dev/urandom of=/var/run/random-seed count=${poolsize} 2>/dev/null
|
|
}
|
|
|
|
start() {
|
|
[ -c /dev/urandom ] || return
|
|
if [ -f /var/run/random-seed ] ; then
|
|
cat /var/run/random-seed > /dev/urandom
|
|
fi
|
|
if ! rm -f /var/run/random-seed ; then
|
|
ewarn "Skipping /var/run/random-seed initialization (ro root?)"
|
|
return 0
|
|
fi
|
|
ebegin "Initializing random number generator"
|
|
save_seed
|
|
eend $? "Error initializing random number generator"
|
|
umask 022
|
|
}
|
|
|
|
stop() {
|
|
ebegin "Saving random seed"
|
|
# Carry a random seed from shut-down to start-up;
|
|
# see documentation in linux/drivers/char/random.c
|
|
save_seed
|
|
eend $? "Failed to save random seed"
|
|
}
|
|
|
|
# vim: set ts=4 :
|