From: Matthew Monaco <matthew.monaco@0x01b.net> 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 f8a7acd..183971a 100644 --- a/functions +++ b/functions @@ -529,6 +529,27 @@ 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 # ############################### -- 1.7.9.4