From: Matthew Monaco
The differences compared to the existing inline implementation are:
- can use cat again for loading
- the calculated pool size can be local
- quote file names... can't hurt
---
functions | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/functions b/functions
index fd20349..b1dd5c1 100644
--- a/functions
+++ b/functions
@@ -506,6 +506,27 @@ bootlogd_stop() {
-e 's/\^\[(\[1?[0-9][0-9]|%)G//g' -e 's/\^\[\[0;1//g' /var/log/boot
}
+RANDOM_SEED=/var/lib/misc/random-seed
+RANDOM_POOL_FILE=/proc/sys/kernel/random/poolsize
+
+load_random_seed() {
+ if [[ -f "$RANDOM_SEED" ]]; then
+ cat "$RANDOM_SEED" > /dev/urandom
+ fi
+}
+
+store_random_seed() {
+ local pool_size
+ install -TDm 0600 /dev/null "$RANDOM_SEED"
+ if [[ -r "$RANDOM_POOL_FILE" ]]; then
+ read pool_size < "$RANDOM_POOL_FILE"
+ (( pool_size /= 8 ))
+ else
+ pool_size=512
+ fi
+ dd if=/dev/urandom of="$RANDOM_SEED" count=1 bs=$pool_size &> /dev/null
+}
+
###############################
# Custom hooks in initscripts #
###############################
--
1.7.10.2