Add ASN.1 ENUMERATED tag support
Add ASN.1 ENUMERATED [1] tag to supported tag list.
1. https://tools.ietf.org/html/rfc3641#page-8
Signed-off-by: Mykhailo Sopiha <mykhailo.sopiha@linaro.org>
diff --git a/include/mbedtls/asn1write.h b/include/mbedtls/asn1write.h
index 9824146..0bce28e 100644
--- a/include/mbedtls/asn1write.h
+++ b/include/mbedtls/asn1write.h
@@ -193,6 +193,21 @@
int mbedtls_asn1_write_int( unsigned char **p, unsigned char *start, int val );
/**
+ * \brief Write an enum tag (#MBEDTLS_ASN1_ENUMERATED) and value
+ * in ASN.1 format.
+ *
+ * \note This function works backwards in data buffer.
+ *
+ * \param p The reference to the current position pointer.
+ * \param start The start of the buffer, for bounds-checking.
+ * \param val The integer value to write.
+ *
+ * \return The number of bytes written to \p p on success.
+ * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure.
+ */
+int mbedtls_asn1_write_enum( unsigned char **p, unsigned char *start, int val );
+
+/**
* \brief Write a string in ASN.1 format using a specific
* string encoding tag.