x509: Support parsing of OCSP requests

src/libstrongswan/plugins/x509/x509_ocsp_request.h

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2008-2009 Martin Willi
+ * Copyright (C) 2023 Andreas Steffen, strongSec GmbH
  *
  * Copyright (C) secunet Security Networks AG
  *
@@ -54,4 +55,13 @@ struct x509_ocsp_request_t {
  */
 x509_ocsp_request_t *x509_ocsp_request_gen(certificate_type_t type, va_list args);
 
+/**
+ * Load a X.509 OCSP request.
+ *
+ * @param type      certificate type, CERT_X509_OCSP_REQUEST only
+ * @param args      builder_part_t argument list
+ * @return          OCSP request, NULL on failure
+ */
+x509_ocsp_request_t *x509_ocsp_request_load(certificate_type_t type, va_list args);
+
 #endif /** X509_OCSP_REQUEST_H_ @}*/