diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 180f4d8..ecbeb8b 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -270,6 +270,39 @@
       + ( MBEDTLS_SSL_CID_OUT_LEN_MAX ) )
 #endif
 
+#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
+/**
+ * \brief          Return the maximum fragment length (payload, in bytes) for
+ *                 the output buffer. For the client, this is the configured
+ *                 value. For the server, it is the minimum of two - the
+ *                 configured value and the negotiated one.
+ *
+ * \sa             mbedtls_ssl_conf_max_frag_len()
+ * \sa             mbedtls_ssl_get_max_out_record_payload()
+ *
+ * \param ssl      SSL context
+ *
+ * \return         Current maximum fragment length for the output buffer.
+ */
+size_t mbedtls_ssl_get_output_max_frag_len( const mbedtls_ssl_context *ssl );
+
+/**
+ * \brief          Return the maximum fragment length (payload, in bytes) for
+ *                 the input buffer. This is the negotiated maximum fragment
+ *                 length, or, if there is none, MBEDTLS_SSL_MAX_CONTENT_LEN.
+ *                 If it is not defined either, the value is 2^14. This function
+ *                 works as its predecessor, \c mbedtls_ssl_get_max_frag_len().
+ *
+ * \sa             mbedtls_ssl_conf_max_frag_len()
+ * \sa             mbedtls_ssl_get_max_in_record_payload()
+ *
+ * \param ssl      SSL context
+ *
+ * \return         Current maximum fragment length for the output buffer.
+ */
+size_t mbedtls_ssl_get_input_max_frag_len( const mbedtls_ssl_context *ssl );
+#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
+
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
 static inline size_t mbedtls_ssl_get_output_buflen( const mbedtls_ssl_context *ctx )
 {