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authorPetr Štetiar <ynezz@true.cz>2019-05-20 16:38:33 +0200
committerPetr Štetiar <ynezz@true.cz>2019-06-11 08:06:28 +0200
commit27bfde9c9f789dbfabebf13047e8b042c27cdeef (patch)
treedc9c5f7d394cfb157755a7dde448653aa3166c24 /package/system/urandom-seed/files/lib
parent9b4de712cae9b3d745ea4331a804242505f58619 (diff)
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base-files: move urandom seed bits into separate package
So it's possible to install or remove it as needed. Tested-by: Lucian Cristian <lucian.cristian@gmail.com> Signed-off-by: Petr Štetiar <ynezz@true.cz>
Diffstat (limited to 'package/system/urandom-seed/files/lib')
-rw-r--r--package/system/urandom-seed/files/lib/preinit/81_urandom_seed24
1 files changed, 24 insertions, 0 deletions
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