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-rwxr-xr-xpackage/system/urandom-seed/files/sbin/urandom_seed20
1 files changed, 20 insertions, 0 deletions
diff --git a/package/system/urandom-seed/files/sbin/urandom_seed b/package/system/urandom-seed/files/sbin/urandom_seed
new file mode 100755
index 0000000000..7043e8af4e
--- /dev/null
+++ b/package/system/urandom-seed/files/sbin/urandom_seed
@@ -0,0 +1,20 @@
+#!/bin/sh
+set -e
+
+trap '[ "$?" -eq 0 ] || echo "An error occured" >&2' EXIT
+
+save() {
+ touch "$1.tmp"
+ chown root:root "$1.tmp"
+ chmod 600 "$1.tmp"
+ getrandom 512 > "$1.tmp"
+ mv "$1.tmp" "$1"
+ echo "Seed saved ($1)"
+}
+
+SEED="$(uci -q get system.@system[0].urandom_seed || true)"
+[ "${SEED:0:1}" = "/" ] && save "$SEED"
+
+SEED=/etc/urandom.seed
+[ ! -f $SEED ] && save "$SEED"
+true