Submitted By: Douglas Hunley (doug@hunley.homeip.net)
Date: 2003-08-14
Initial Package Version: 1.2
Origin: N/A
Description: Add /etc/rc.d/init.d/random for increasing the size of the default entropy pool to 1k, and seeding it with a saved seed from the last boot. Also saves a seed on shutdown for the next boot.

diff -Naur lfs-bootscripts-1.2/makesymlinks lfs-bootscripts-1.21/makesymlinks
--- lfs-bootscripts-1.2/makesymlinks	2003-08-14 18:47:59.000000000 +0000
+++ lfs-bootscripts-1.21/makesymlinks	2003-08-15 13:29:35.000000000 +0000
@@ -5,6 +5,7 @@
 
 echo "Making symlinks in rc.d/rc0.d..." &&
 cd rc.d/rc0.d &&
+ln -s ../init.d/random K40random &&
 ln -s ../init.d/sysklogd K40sysklogd &&
 ln -s ../init.d/sendsignals K50sendsignals &&
 ln -s ../init.d/mountfs K60mountfs &&
@@ -40,6 +41,7 @@
 
 echo "Making symlinks in rc.d/rc6.d..." &&
 cd ../rc6.d &&
+ln -s ../init.d/random K40random &&
 ln -s ../init.d/sysklogd K40sysklogd &&
 ln -s ../init.d/sendsignals K50sendsignals &&
 ln -s ../init.d/mountfs K60mountfs &&
@@ -58,6 +60,7 @@
 ln -s ../init.d/setclock S60setclock &&
 ln -s ../init.d/loadkeys S70loadkeys &&
 ln -s ../init.d/localnet S80localnet &&
+ln -s ../init.d/random S90random
 
 echo "Done."
 
diff -Naur lfs-bootscripts-1.2/rc.d/init.d/random lfs-bootscripts-1.21/rc.d/init.d/random
--- lfs-bootscripts-1.2/rc.d/init.d/random	1970-01-01 00:00:00.000000000 +0000
+++ lfs-bootscripts-1.21/rc.d/init.d/random	2003-08-15 13:25:39.000000000 +0000
@@ -0,0 +1,39 @@
+#!/bin/bash
+# Begin $rc_base/init.d/random
+
+# Written by Douglas Hunley - doug@hunley.homeip.net
+
+source /etc/sysconfig/rc
+source $rc_functions
+
+# 512 bytes is the default entropy pool size, adjust as necessary
+# by messing with /proc/sys/kernel/random/poolsize
+# (we double it)
+
+case "$1" in
+	start)
+		echo "Initializing kernel random number generator..."
+		echo 1024 > /proc/sys/kernel/random/poolsize
+		# Seed with our previous pool if available
+		if [ -f /var/tmp/random-seed ]; then
+                        cat /var/tmp/random-seed > /dev/urandom
+                fi
+		# Cause an initial generation
+                dd if=/dev/urandom of=/var/tmp/random-seed bs=1024 count=1 &>/dev/null
+                evaluate_retval
+		;;
+
+	stop)
+		echo "Saving random seed..."
+		dd if=/dev/urandom of=/var/tmp/random-seed bs=1024 count=1 &>/dev/null
+                evaluate_retval
+		;;
+
+	*)
+		echo "Usage: $0 {start|stop}"
+		exit 1
+		;;
+esac
+
+# End $rc_base/init.d/random
+