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Bignum: move internal constants to headers

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Now that the check_names script allows it, we can do so.

Signed-off-by: Janos Follath <janos.follath@arm.com>
This commit is contained in:
Janos Follath
2022-08-10 13:32:16 +01:00
parent 9938719a05
commit d0895708e2
4 changed files with 15 additions and 40 deletions
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15
library/bignum.c
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@ -63,19 +63,8 @@
#define MPI_VALIDATE( cond ) \ #define MPI_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond ) MBEDTLS_INTERNAL_VALIDATE( cond )
#define ciL (sizeof(mbedtls_mpi_uint)) /* chars in limb */
#define biL (ciL << 3) /* bits in limb */
#define biH (ciL << 2) /* half limb size */
#define MPI_SIZE_T_MAX ( (size_t) -1 ) /* SIZE_T_MAX is not standard */ #define MPI_SIZE_T_MAX ( (size_t) -1 ) /* SIZE_T_MAX is not standard */
/*
* Convert between bits/chars and number of limbs
* Divide first in order to avoid potential overflows
*/
#define BITS_TO_LIMBS(i) ( (i) / biL + ( (i) % biL != 0 ) )
#define CHARS_TO_LIMBS(i) ( (i) / ciL + ( (i) % ciL != 0 ) )
/* Implementation that should never be optimized out by the compiler */ /* Implementation that should never be optimized out by the compiler */
static void mbedtls_mpi_zeroize( mbedtls_mpi_uint *v, size_t n ) static void mbedtls_mpi_zeroize( mbedtls_mpi_uint *v, size_t n )
{ {
@ -304,10 +293,6 @@ int mbedtls_mpi_get_bit( const mbedtls_mpi *X, size_t pos )
return( ( X->p[pos / biL] >> ( pos % biL ) ) & 0x01 ); return( ( X->p[pos / biL] >> ( pos % biL ) ) & 0x01 );
} }
/* Get a specific byte, without range checks. */
#define GET_BYTE( X, i ) \
( ( ( X )->p[( i ) / ciL] >> ( ( ( i ) % ciL ) * 8 ) ) & 0xff )
/* /*
* Set a bit to a specific value of 0 or 1 * Set a bit to a specific value of 0 or 1
*/ */

14
library/bignum_core.c
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@ -38,20 +38,6 @@
#include "bignum_core.h" #include "bignum_core.h"
#define ciL (sizeof(mbedtls_mpi_uint)) /* chars in limb */
#define biL (ciL << 3) /* bits in limb */
#define biH (ciL << 2) /* half limb size */
/*
* Convert between bits/chars and number of limbs
* Divide first in order to avoid potential overflows
*/
#define BITS_TO_LIMBS(i) ( (i) / biL + ( (i) % biL != 0 ) )
#define CHARS_TO_LIMBS(i) ( (i) / ciL + ( (i) % ciL != 0 ) )
/* Get a specific byte, without range checks. */
#define GET_BYTE( X, i ) \
( ( ( X )[( i ) / ciL] >> ( ( ( i ) % ciL ) * 8 ) ) & 0xff )
/* /*
* Count leading zero bits in a given integer * Count leading zero bits in a given integer
*/ */

14
library/bignum_core.h
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@ -122,4 +122,18 @@ int mbedtls_mpi_core_write_be( const mbedtls_mpi_uint *X,
unsigned char *buf, unsigned char *buf,
size_t buflen ); size_t buflen );
#define ciL (sizeof(mbedtls_mpi_uint)) /* chars in limb */
#define biL (ciL << 3) /* bits in limb */
#define biH (ciL << 2) /* half limb size */
/*
* Convert between bits/chars and number of limbs
* Divide first in order to avoid potential overflows
*/
#define BITS_TO_LIMBS(i) ( (i) / biL + ( (i) % biL != 0 ) )
#define CHARS_TO_LIMBS(i) ( (i) / ciL + ( (i) % ciL != 0 ) )
/* Get a specific byte, without range checks. */
#define GET_BYTE( X, i ) \
( ( ( X )[( i ) / ciL] >> ( ( ( i ) % ciL ) * 8 ) ) & 0xff )
#endif /* MBEDTLS_BIGNUM_CORE_H */ #endif /* MBEDTLS_BIGNUM_CORE_H */

12
tests/suites/test_suite_mpi.function
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@ -10,17 +10,7 @@
#if MBEDTLS_MPI_MAX_BITS > 792 #if MBEDTLS_MPI_MAX_BITS > 792
#define MPI_MAX_BITS_LARGER_THAN_792 #define MPI_MAX_BITS_LARGER_THAN_792
#endif #endif
#
#define ciL (sizeof(mbedtls_mpi_uint)) /* chars in limb */
#define biL (ciL << 3) /* bits in limb */
/*
* Convert between bits/chars and number of limbs
* Divide first in order to avoid potential overflows
*/
#define BITS_TO_LIMBS(i) ( (i) / biL + ( (i) % biL != 0 ) )
#define CHARS_TO_LIMBS(i) ( (i) / ciL + ( (i) % ciL != 0 ) )
/* Check the validity of the sign bit in an MPI object. Reject representations /* Check the validity of the sign bit in an MPI object. Reject representations
* that are not supported by the rest of the library and indicate a bug when * that are not supported by the rest of the library and indicate a bug when
* constructing the value. */ * constructing the value. */