-/* Extension context codes */
-/* This extension is only allowed in TLS */
-#define EXT_TLS_ONLY 0x0001
-/* This extension is only allowed in DTLS */
-#define EXT_DTLS_ONLY 0x0002
-/* Some extensions may be allowed in DTLS but we don't implement them for it */
-#define EXT_TLS_IMPLEMENTATION_ONLY 0x0004
-/* Most extensions are not defined for SSLv3 but EXT_TYPE_renegotiate is */
-#define EXT_SSL3_ALLOWED 0x0008
-/* Extension is only defined for TLS1.2 and above */
-#define EXT_TLS1_2_AND_BELOW_ONLY 0x0010
-/* Extension is only defined for TLS1.3 and above */
-#define EXT_TLS1_3_ONLY 0x0020
-#define EXT_CLIENT_HELLO 0x0040
-/* Really means TLS1.2 or below */
-#define EXT_TLS1_2_SERVER_HELLO 0x0080
-#define EXT_TLS1_3_SERVER_HELLO 0x0100
-#define EXT_TLS1_3_ENCRYPTED_EXTENSIONS 0x0200
-#define EXT_TLS1_3_HELLO_RETRY_REQUEST 0x0400
-#define EXT_TLS1_3_CERTIFICATE 0x0800
-#define EXT_TLS1_3_NEW_SESSION_TICKET 0x1000
-#define EXT_TLS1_3_CERTIFICATE_REQUEST 0x2000
-