added comment to determine_tnccs_protocol() function

diff --git a/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.c b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.c
index f7ef5d98a718ce897093e8bd5eaef3296aae2020..b7985fa5139d5065060e2553233c495f9303112b 100644 (file)
--- a/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.c
+++ b/src/libcharon/plugins/tnccs_dynamic/tnccs_dynamic.c
@@ -36,6 +36,12 @@ struct private_tnccs_dynamic_t {
        tls_t *tls;
 };
 
+/**
+ * Determine the version of the IF-TNCCS protocol used by analyzing the first
+ * byte of the TNCCS batch received from a TNC Client according to the rules
+ * defined by section 3.5 "Interoperability with older IF-TNCCS versions" of
+ * the TCG TNC IF-TNCCS TLV Bindings Version 2.0 standard.
+ */
 tnccs_type_t determine_tnccs_protocol(char version)
 {
        switch (version)