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Add UINT64 GET and PUT macros

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Copy over the GET/PUT_UINT64_LE/BE macros from aes.c and sha512.c
Add the MBEDTLS_ prefix to all 4 macros.
Modify the GET_UINT64 macros to no longer take a target variable
as a parameter, so when the macro function is called it must be
assigned to a variable in the same statement.

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
This commit is contained in:
Joe Subbiani
2021-07-16 12:29:49 +01:00
parent 2194dc477a
commit 99edd6c810
3 changed files with 99 additions and 68 deletions
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91
library/common.h
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@ -193,5 +193,96 @@ extern void (*mbedtls_test_hook_test_fail)( const char * test, int line, const c
}
#endif
/**
* Get the unsigned 64 bits integer corresponding to eight bytes in
* big-endian order (MSB first).
*
* \param data Base address of the memory to get the eight bytes from.
* \param offset Offset from \p base of the first and most significant
* byte of the eight bytes to build the 64 bits unsigned
* integer from.
*/
#ifndef MBEDTLS_GET_UINT64_BE
#define MBEDTLS_GET_UINT64_BE( data, offset ) \
( \
( (uint64_t) ( data )[( offset ) ] << 56 ) \
| ( (uint64_t) ( data )[( offset ) + 1] << 48 ) \
| ( (uint64_t) ( data )[( offset ) + 2] << 40 ) \
| ( (uint64_t) ( data )[( offset ) + 3] << 32 ) \
| ( (uint64_t) ( data )[( offset ) + 4] << 24 ) \
| ( (uint64_t) ( data )[( offset ) + 5] << 16 ) \
| ( (uint64_t) ( data )[( offset ) + 6] << 8 ) \
| ( (uint64_t) ( data )[( offset ) + 7] ) \
)
#endif
/**
* Put in memory a 64 bits unsigned integer in big-endian order.
*
* \param n 64 bits unsigned integer to put in memory.
* \param data Base address of the memory where to put the 64
* bits unsigned integer in.
* \param offset Offset from \p base where to put the most significant
* byte of the 64 bits unsigned integer \p n.
*/
#ifndef MBEDTLS_PUT_UINT64_BE
#define MBEDTLS_PUT_UINT64_BE( n, data, offset ) \
{ \
( data )[( offset ) ] = (unsigned char) ( (n) >> 56 ); \
( data )[( offset ) + 1] = (unsigned char) ( (n) >> 48 ); \
( data )[( offset ) + 2] = (unsigned char) ( (n) >> 40 ); \
( data )[( offset ) + 3] = (unsigned char) ( (n) >> 32 ); \
( data )[( offset ) + 4] = (unsigned char) ( (n) >> 24 ); \
( data )[( offset ) + 5] = (unsigned char) ( (n) >> 16 ); \
( data )[( offset ) + 6] = (unsigned char) ( (n) >> 8 ); \
( data )[( offset ) + 7] = (unsigned char) ( (n) ); \
}
#endif
/**
* Get the unsigned 64 bits integer corresponding to eight bytes in
* little-endian order (LSB first).
*
* \param data Base address of the memory to get the eight bytes from.
* \param offset Offset from \p base of the first and least significant
* byte of the eight bytes to build the 64 bits unsigned
* integer from.
*/
#ifndef MBEDTLS_GET_UINT64_LE
#define MBEDTLS_GET_UINT64_LE( data, offset ) \
( \
( (uint64_t) ( data )[( offset ) + 7] << 56 ) \
| ( (uint64_t) ( data )[( offset ) + 6] << 48 ) \
| ( (uint64_t) ( data )[( offset ) + 5] << 40 ) \
| ( (uint64_t) ( data )[( offset ) + 4] << 32 ) \
| ( (uint64_t) ( data )[( offset ) + 3] << 24 ) \
| ( (uint64_t) ( data )[( offset ) + 2] << 16 ) \
| ( (uint64_t) ( data )[( offset ) + 1] << 8 ) \
| ( (uint64_t) ( data )[( offset ) ] ) \
)
#endif
/**
* Put in memory a 64 bits unsigned integer in little-endian order.
*
* \param n 64 bits unsigned integer to put in memory.
* \param data Base address of the memory where to put the 64
* bits unsigned integer in.
* \param offset Offset from \p base where to put the least significant
* byte of the 64 bits unsigned integer \p n.
*/
#ifndef MBEDTLS_PUT_UINT64_LE
#define MBEDTLS_PUT_UINT64_LE( n, data, offset ) \
{ \
( data )[( offset ) + 7] = (unsigned char) ( (n) >> 56 ); \
( data )[( offset ) + 6] = (unsigned char) ( (n) >> 48 ); \
( data )[( offset ) + 5] = (unsigned char) ( (n) >> 40 ); \
( data )[( offset ) + 4] = (unsigned char) ( (n) >> 32 ); \
( data )[( offset ) + 3] = (unsigned char) ( (n) >> 24 ); \
( data )[( offset ) + 2] = (unsigned char) ( (n) >> 16 ); \
( data )[( offset ) + 1] = (unsigned char) ( (n) >> 8 ); \
( data )[( offset ) ] = (unsigned char) ( (n) ); \
}
#endif
#endif /* MBEDTLS_LIBRARY_COMMON_H */