X-Git-Url: http://git.ozo.com/?a=blobdiff_plain;f=package%2Fsystem%2Furandom-seed%2Ffiles%2Flib%2Fpreinit%2F81_urandom_seed;fp=package%2Fsystem%2Furandom-seed%2Ffiles%2Flib%2Fpreinit%2F81_urandom_seed;h=26212c60b5e0f46f910367b8107161a587b6a701;hb=27bfde9c9f789dbfabebf13047e8b042c27cdeef;hp=0000000000000000000000000000000000000000;hpb=9b4de712cae9b3d745ea4331a804242505f58619;p=openwrt%2F.git

diff --git a/package/system/urandom-seed/files/lib/preinit/81_urandom_seed b/package/system/urandom-seed/files/lib/preinit/81_urandom_seed
new file mode 100644
index 0000000000..26212c60b5
--- /dev/null
+++ b/package/system/urandom-seed/files/lib/preinit/81_urandom_seed
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+log_urandom_seed() {
+    echo "urandom-seed: $1" > /dev/kmsg
+}
+
+_do_urandom_seed() {
+    [ -f "$1" ] || { log_urandom_seed "Seed file not found ($1)"; return; }
+    [ -O "$1" -a -G "$1" -a ! -x "$1" ] || { log_urandom_seed "Wrong owner / permissions for $1"; return; }
+
+    log_urandom_seed "Seeding with $1"
+    cat "$1" > /dev/urandom
+}
+
+do_urandom_seed() {
+    [ -c /dev/urandom ] || { log_urandom_seed "Something is wrong with /dev/urandom"; return; }
+
+    _do_urandom_seed "/etc/urandom.seed"
+
+    SEED="$(uci -q get system.@system[0].urandom_seed)"
+    [ "${SEED:0:1}" = "/" -a "$SEED" != "/etc/urandom.seed" ] && _do_urandom_seed "$SEED"
+}
+
+boot_hook_add preinit_main do_urandom_seed