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-rw-r--r--src/libstrongswan/plugins/plugin_feature.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/libstrongswan/plugins/plugin_feature.h b/src/libstrongswan/plugins/plugin_feature.h
index 25a58a4b5..10a316e4a 100644
--- a/src/libstrongswan/plugins/plugin_feature.h
+++ b/src/libstrongswan/plugins/plugin_feature.h
@@ -1,4 +1,7 @@
/*
+ * Copyright (C) 2012 Tobias Brunner
+ * Hochschule fuer Technik Rapperswil
+ *
* Copyright (C) 2011 Martin Willi
* Copyright (C) 2011 revosec AG
*
@@ -304,6 +307,18 @@ struct plugin_feature_t {
extern enum_name_t *plugin_feature_names;
/**
+ * Calculates a hash value for the given feature.
+ *
+ * Since this is intended to be used with the plugin_features_matches function
+ * the hash is not really unique for all types of features (e.g. RNGs are all
+ * mapped to the same value because they are loosely matched by said function).
+ *
+ * @param feature feature to hash
+ * @return hash value of the feature
+ */
+u_int32_t plugin_feature_hash(plugin_feature_t *feature);
+
+/**
* Check if feature a matches to feature b.
*
* @param a feature to check