1 files changed, 11 insertions, 0 deletions
diff --git a/util/sasl.lua b/util/sasl.lua
index 93b79a86..37a234c9 100644
--- a/util/sasl.lua
+++ b/util/sasl.lua
@@ -27,6 +27,17 @@ Authentication Backend Prototypes:
 state = false : disabled
 state = true : enabled
 state = nil : non-existant
+
+Channel Binding:
+
+To enable support of channel binding in some mechanisms you need to provide appropriate callbacks in a table
+at profile.cb.
+
+Example:
+	profile.cb["tls-unique"] = function(self)
+		return self.user
+	end
+
 ]]
 
 local method = {};