add some comments

diff --git a/mech_eap/util.h b/mech_eap/util.h
index 8afc97c..ec80a20 100644 (file)
--- a/mech_eap/util.h
+++ b/mech_eap/util.h
@@ -159,17 +159,17 @@ enum gss_eap_token_type {
 
 /* inner token types and flags */
 #define ITOK_TYPE_NONE                  0x00000000
-#define ITOK_TYPE_CONTEXT_ERR           0x00000001
-#define ITOK_TYPE_ACCEPTOR_NAME_REQ     0x00000002
-#define ITOK_TYPE_ACCEPTOR_NAME_RESP    0x00000003
-#define ITOK_TYPE_EAP_RESP              0x00000004
-#define ITOK_TYPE_EAP_REQ               0x00000005
-#define ITOK_TYPE_GSS_CHANNEL_BINDINGS  0x00000006
-#define ITOK_TYPE_REAUTH_CREDS          0x00000007
-#define ITOK_TYPE_REAUTH_REQ            0x00000008
-#define ITOK_TYPE_REAUTH_RESP           0x00000009
-#define ITOK_TYPE_VERSION_INFO          0x0000000A
-#define ITOK_TYPE_VENDOR_INFO           0x0000000B
+#define ITOK_TYPE_CONTEXT_ERR           0x00000001 /* critical */
+#define ITOK_TYPE_ACCEPTOR_NAME_REQ     0x00000002 /* TBD */
+#define ITOK_TYPE_ACCEPTOR_NAME_RESP    0x00000003 /* TBD */
+#define ITOK_TYPE_EAP_RESP              0x00000004 /* critical, required, if not reauth */
+#define ITOK_TYPE_EAP_REQ               0x00000005 /* critical, required, if not reauth */
+#define ITOK_TYPE_GSS_CHANNEL_BINDINGS  0x00000006 /* critical, required, if not reauth */
+#define ITOK_TYPE_REAUTH_CREDS          0x00000007 /* optional */
+#define ITOK_TYPE_REAUTH_REQ            0x00000008 /* optional */
+#define ITOK_TYPE_REAUTH_RESP           0x00000009 /* optional */
+#define ITOK_TYPE_VERSION_INFO          0x0000000A /* optional */
+#define ITOK_TYPE_VENDOR_INFO           0x0000000B /* optional */
 
 #define ITOK_FLAG_CRITICAL              0x80000000  /* critical, wire flag */
 #define ITOK_FLAG_VERIFIED              0x40000000  /* verified, API flag */