+/* From RFC 5878 */
+#define TLSEXT_SUPPLEMENTALDATATYPE_authz_data 16386
+
+/* This is not IANA assigned. See
+ * https://www.iana.org/assignments/tls-parameters/tls-parameters.xml#authorization-data-rules
+ * http://tools.ietf.org/id/draft-dthakore-tls-authz-01.txt
+ */
+#define TLSEXT_AUTHZDATAFORMAT_dtcp 225
+
+#define TLSEXT_MAXLEN_supplemental_data 1024*16 /* Let's limit to 16k */
+
+const char *SSL_get_servername(const SSL *s, const int type);
+int SSL_get_servername_type(const SSL *s);
+/* SSL_export_keying_material exports a value derived from the master secret,
+ * as specified in RFC 5705. It writes |olen| bytes to |out| given a label and
+ * optional context. (Since a zero length context is allowed, the |use_context|
+ * flag controls whether a context is included.)
+ *
+ * It returns 1 on success and zero otherwise.
+ */
+int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
+ const char *label, size_t llen, const unsigned char *p, size_t plen,
+ int use_context);
+
+int SSL_get_sigalgs(SSL *s, int idx,
+ int *psign, int *phash, int *psignandhash,
+ unsigned char *rsig, unsigned char *rhash);
+
+int SSL_get_shared_sigalgs(SSL *s, int idx,
+ int *psign, int *phash, int *psignandhash,
+ unsigned char *rsig, unsigned char *rhash);
+
+int SSL_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain);