+/**
+ * @brief extracts request information from received pdu.
+ * @param pdu [IN] received pdu
+ * @param outReqInfo [OUT] request info structure made from received pdu
+ * @param outUri [OUT] uri received in the received pdu
+ * @return CA_STATUS_OK or ERROR CODES ( CAResult_t error codes in cacommon.h)
+ */
+uint32_t CAGetRequestInfoFromPdu(const coap_pdu_t *pdu, CARequestInfo_t *outReqInfo,
+ char *outUri);
+
+/**
+ * @brief extracts response information from received pdu.
+ * @param pdu [IN] received pdu
+ * @param outResInfo [OUT] request info structure made from received pdu
+ * @param outUri [OUT] uri received in the received pdu
+ * @return 0 or 1 ( CAResult_t error codes in cacommon.h)
+ */