-__owur int SSL_set_ct_validation_callback(SSL *s,
- ct_validation_cb callback,
- void *arg);
-__owur int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
- ct_validation_cb callback,
- void *arg);
+int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
+ void *arg);
+int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
+ ssl_ct_validation_cb callback,
+ void *arg);
+#define SSL_disable_ct(s) \
+ ((void) SSL_set_validation_callback((s), NULL, NULL))
+#define SSL_CTX_disable_ct(ctx) \
+ ((void) SSL_CTX_set_validation_callback((ctx), NULL, NULL))
+
+/*
+ * The validation type enumerates the available behaviours of the built-in SSL
+ * CT validation callback selected via SSL_enable_ct() and SSL_CTX_enable_ct().
+ * The underlying callback is a static function in libssl.
+ */
+enum {
+ SSL_CT_VALIDATION_PERMISSIVE = 0,
+ SSL_CT_VALIDATION_STRICT
+};
+
+/*
+ * Enable CT by setting up a callback that implements one of the built-in
+ * validation variants. The SSL_CT_VALIDATION_PERMISSIVE variant always
+ * continues the handshake, the application can make appropriate decisions at
+ * handshake completion. The SSL_CT_VALIDATION_STRICT variant requires at
+ * least one valid SCT, or else handshake termination will be requested. The
+ * handshake may continue anyway if SSL_VERIFY_NONE is in effect.
+ */
+int SSL_enable_ct(SSL *s, int validation_mode);
+int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode);
+