package/system/urandom-seed/files/lib/preinit/81_urandom_seed

   1 log_urandom_seed() {
   2     echo "urandom-seed: $1" > /dev/kmsg
   3 }
   4
   5 _do_urandom_seed() {
   6     [ -f "$1" ] || { log_urandom_seed "Seed file not found ($1)"; return; }
   7     [ -O "$1" -a -G "$1" -a ! -x "$1" ] || { log_urandom_seed "Wrong owner / permissions for $1"; return; }
   8
   9     log_urandom_seed "Seeding with $1"
  10     cat "$1" > /dev/urandom
  11 }
  12
  13 do_urandom_seed() {
  14     [ -c /dev/urandom ] || { log_urandom_seed "Something is wrong with /dev/urandom"; return; }
  15
  16     _do_urandom_seed "/etc/urandom.seed"
  17
  18     SEED="$(uci -q get system.@system[0].urandom_seed)"
  19     [ "${SEED:0:1}" = "/" -a "$SEED" != "/etc/urandom.seed" ] && _do_urandom_seed "$SEED"
  20 }
  21
  22 boot_hook_add preinit_main do_urandom_seed