1 files changed, 38 insertions, 0 deletions
diff --git a/src/include/ipxe/base16.h b/src/include/ipxe/base16.h
new file mode 100644
index 000000000..f0c9842f9
--- /dev/null
+++ b/src/include/ipxe/base16.h
@@ -0,0 +1,38 @@
+#ifndef _IPXE_BASE16_H
+#define _IPXE_BASE16_H
+
+/** @file
+ *
+ * Base16 encoding
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <string.h>
+
+/**
+ * Calculate length of base16-encoded data
+ *
+ * @v raw_len		Raw data length
+ * @ret encoded_len	Encoded string length (excluding NUL)
+ */
+static inline size_t base16_encoded_len ( size_t raw_len ) {
+	return ( 2 * raw_len );
+}
+
+/**
+ * Calculate maximum length of base16-decoded string
+ *
+ * @v encoded		Encoded string
+ * @v max_raw_len	Maximum length of raw data
+ */
+static inline size_t base16_decoded_max_len ( const char *encoded ) {
+	return ( ( strlen ( encoded ) + 1 ) / 2 );
+}
+
+extern void base16_encode ( const uint8_t *raw, size_t len, char *encoded );
+extern int base16_decode ( const char *encoded, uint8_t *raw );
+
+#endif /* _IPXE_BASE16_H */