Implemented cert payload constructor for custom encoding types

src/libcharon/encoding/payloads/cert_payload.c

@@ -343,3 +343,15 @@ cert_payload_t *cert_payload_create_from_hash_and_url(chunk_t hash, char *url)
 	return &this->public;
 }
 
+/*
+ * Described in header
+ */
+cert_payload_t *cert_payload_create_custom(cert_encoding_t type, chunk_t data)
+{
+	private_cert_payload_t *this = (private_cert_payload_t*)cert_payload_create();
+
+	this->encoding = type;
+	this->data = data;
+	this->payload_length = CERT_PAYLOAD_HEADER_LENGTH + this->data.len;
+	return &this->public;
+}

src/libcharon/encoding/payloads/cert_payload.h

@@ -134,4 +134,13 @@ cert_payload_t *cert_payload_create_from_cert(certificate_t *cert);
  */
 cert_payload_t *cert_payload_create_from_hash_and_url(chunk_t hash, char *url);
 
+/**
+ * Creates a custom certificate payload using type and associated data.
+ *
+ * @param type				encoding type of certificate
+ * @param url				associated data (gets owned)
+ * @return					cert_payload_t object
+ */
+cert_payload_t *cert_payload_create_custom(cert_encoding_t type, chunk_t data);
+
 #endif /** CERT_PAYLOAD_H_ @}*/