Add GET/PUT_UINT24_BE/LE
@@ -226,6 +226,78 @@ extern void (*mbedtls_test_hook_test_fail)( const char * test, int line, const c
}
#endif
+/**
+ * Get the unsigned 24 bits integer corresponding to four bytes in
+ * big-endian order (MSB first).
+ *
+ * \param data Base address of the memory to get the four bytes from.
+ * \param offset Offset from \p base of the first and most significant
+ * byte of the four bytes to build the 24 bits unsigned
+ * integer from.
+ */
+#ifndef MBEDTLS_GET_UINT24_BE
+#define MBEDTLS_GET_UINT24_BE( data , offset ) \
+ ( \
+ ( (uint32_t) ( data )[( offset ) ] << 16 ) \
+ | ( (uint32_t) ( data )[( offset ) + 1] << 8 ) \
+ | ( (uint32_t) ( data )[( offset ) + 2] ) \
+ )
+#endif
+
+/**
+ * Put in memory a 24 bits unsigned integer in big-endian order.
+ *
+ * \param n 24 bits unsigned integer to put in memory.
+ * \param data Base address of the memory where to put the 24
+ * bits unsigned integer in.
+ * \param offset Offset from \p base where to put the most significant
+ * byte of the 24 bits unsigned integer \p n.
+ */
+#ifndef MBEDTLS_PUT_UINT24_BE
+#define MBEDTLS_PUT_UINT24_BE( n, data, offset ) \
+{ \
+ ( data )[( offset ) ] = MBEDTLS_BYTE_2( n ); \
+ ( data )[( offset ) + 1] = MBEDTLS_BYTE_1( n ); \
+ ( data )[( offset ) + 2] = MBEDTLS_BYTE_0( n ); \
+}
+#endif
+
+/**
+ * Get the unsigned 24 bits integer corresponding to four bytes in
+ * little-endian order (LSB first).
+ *
+ * \param data Base address of the memory to get the four bytes from.
+ * \param offset Offset from \p base of the first and least significant
+ * byte of the four bytes to build the 24 bits unsigned
+ * integer from.
+ */
+#ifndef MBEDTLS_GET_UINT24_LE
+#define MBEDTLS_GET_UINT24_LE( data, offset ) \
+ ( \
+ ( (uint32_t) ( data )[( offset ) ] ) \
+ | ( (uint32_t) ( data )[( offset ) + 1] << 8 ) \
+ | ( (uint32_t) ( data )[( offset ) + 2] << 16 ) \
+ )
+#endif
+
+/**
+ * Put in memory a 24 bits unsigned integer in little-endian order.
+ *
+ * \param n 24 bits unsigned integer to put in memory.
+ * \param data Base address of the memory where to put the 24
+ * bits unsigned integer in.
+ * \param offset Offset from \p base where to put the least significant
+ * byte of the 24 bits unsigned integer \p n.
+ */
+#ifndef MBEDTLS_PUT_UINT24_LE
+#define MBEDTLS_PUT_UINT24_LE( n, data, offset ) \
+{ \
+ ( data )[( offset ) ] = MBEDTLS_BYTE_0( n ); \
+ ( data )[( offset ) + 1] = MBEDTLS_BYTE_1( n ); \
+ ( data )[( offset ) + 2] = MBEDTLS_BYTE_2( n ); \
+}
+#endif
+
/**
* Get the unsigned 64 bits integer corresponding to eight bytes in
* big-endian order (MSB first).
