statistics: Add support for entropy stats

Add statistics on the available entropy.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

1 files changed, 19 insertions, 0 deletions

diff --git a/applications/luci-app-statistics/luasrc/statistics/rrdtool/entropy.lua b/applications/luci-app-statistics/luasrc/statistics/rrdtool/entropy.lua
new file mode 100644
index 000000000..3d30a70af
--- /dev/null
+++ b/applications/luci-app-statistics/luasrc/statistics/rrdtool/entropy.lua
@@ -0,0 +1,19 @@
+-- Copyright 2015 Hannu Nyman <hannu.nyman@iki.fi>
+-- Licensed to the public under the Apache License 2.0.
+
+module("luci.statistics.rrdtool.definitions.entropy", package.seeall)
+
+function rrdargs( graph, plugin, plugin_instance, dtype )
+
+	return {
+		title = "%H: Available entropy",
+		vlabel = "bits",
+		number_format = "%4.0lf",
+		data = {
+			types = { "entropy" },
+			options = { entropy = { title = "Entropy %di" } }
+		}
+	}
+
+end
+