d76a26e086
Keep applying the windows entropy patch (UWP support).
Remove no longer needed padlock patch.
Update thirdparty README to reflect changes, and new source inclusion
criteria.
(cherry picked from commit e375cbd094)
306 lines
12 KiB
C++
306 lines
12 KiB
C++
/**
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* \file common.h
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*
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* \brief Utility macros for internal use in the library
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*/
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/*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBEDTLS_LIBRARY_COMMON_H
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#define MBEDTLS_LIBRARY_COMMON_H
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#if defined(MBEDTLS_CONFIG_FILE)
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#include MBEDTLS_CONFIG_FILE
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#else
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#include "mbedtls/config.h"
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#endif
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#include <stdint.h>
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/** Helper to define a function as static except when building invasive tests.
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*
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* If a function is only used inside its own source file and should be
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* declared `static` to allow the compiler to optimize for code size,
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* but that function has unit tests, define it with
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* ```
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* MBEDTLS_STATIC_TESTABLE int mbedtls_foo(...) { ... }
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* ```
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* and declare it in a header in the `library/` directory with
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* ```
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* #if defined(MBEDTLS_TEST_HOOKS)
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* int mbedtls_foo(...);
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* #endif
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* ```
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*/
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#if defined(MBEDTLS_TEST_HOOKS)
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#define MBEDTLS_STATIC_TESTABLE
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#else
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#define MBEDTLS_STATIC_TESTABLE static
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#endif
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/** Byte Reading Macros
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*
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* Given a multi-byte integer \p x, MBEDTLS_BYTE_n retrieves the n-th
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* byte from x, where byte 0 is the least significant byte.
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*/
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#define MBEDTLS_BYTE_0( x ) ( (uint8_t) ( ( x ) & 0xff ) )
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#define MBEDTLS_BYTE_1( x ) ( (uint8_t) ( ( ( x ) >> 8 ) & 0xff ) )
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#define MBEDTLS_BYTE_2( x ) ( (uint8_t) ( ( ( x ) >> 16 ) & 0xff ) )
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#define MBEDTLS_BYTE_3( x ) ( (uint8_t) ( ( ( x ) >> 24 ) & 0xff ) )
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#define MBEDTLS_BYTE_4( x ) ( (uint8_t) ( ( ( x ) >> 32 ) & 0xff ) )
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#define MBEDTLS_BYTE_5( x ) ( (uint8_t) ( ( ( x ) >> 40 ) & 0xff ) )
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#define MBEDTLS_BYTE_6( x ) ( (uint8_t) ( ( ( x ) >> 48 ) & 0xff ) )
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#define MBEDTLS_BYTE_7( x ) ( (uint8_t) ( ( ( x ) >> 56 ) & 0xff ) )
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/**
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* Get the unsigned 32 bits integer corresponding to four bytes in
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* big-endian order (MSB first).
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*
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* \param data Base address of the memory to get the four bytes from.
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* \param offset Offset from \p base of the first and most significant
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* byte of the four bytes to build the 32 bits unsigned
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* integer from.
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*/
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#ifndef MBEDTLS_GET_UINT32_BE
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#define MBEDTLS_GET_UINT32_BE( data , offset ) \
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( \
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( (uint32_t) ( data )[( offset ) ] << 24 ) \
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| ( (uint32_t) ( data )[( offset ) + 1] << 16 ) \
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| ( (uint32_t) ( data )[( offset ) + 2] << 8 ) \
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| ( (uint32_t) ( data )[( offset ) + 3] ) \
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)
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#endif
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/**
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* Put in memory a 32 bits unsigned integer in big-endian order.
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*
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* \param n 32 bits unsigned integer to put in memory.
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* \param data Base address of the memory where to put the 32
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* bits unsigned integer in.
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* \param offset Offset from \p base where to put the most significant
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* byte of the 32 bits unsigned integer \p n.
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*/
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#ifndef MBEDTLS_PUT_UINT32_BE
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#define MBEDTLS_PUT_UINT32_BE( n, data, offset ) \
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{ \
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( data )[( offset ) ] = MBEDTLS_BYTE_3( n ); \
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( data )[( offset ) + 1] = MBEDTLS_BYTE_2( n ); \
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( data )[( offset ) + 2] = MBEDTLS_BYTE_1( n ); \
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( data )[( offset ) + 3] = MBEDTLS_BYTE_0( n ); \
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}
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#endif
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/**
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* Get the unsigned 32 bits integer corresponding to four bytes in
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* little-endian order (LSB first).
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*
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* \param data Base address of the memory to get the four bytes from.
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* \param offset Offset from \p base of the first and least significant
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* byte of the four bytes to build the 32 bits unsigned
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* integer from.
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*/
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#ifndef MBEDTLS_GET_UINT32_LE
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#define MBEDTLS_GET_UINT32_LE( data, offset ) \
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( \
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( (uint32_t) ( data )[( offset ) ] ) \
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| ( (uint32_t) ( data )[( offset ) + 1] << 8 ) \
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| ( (uint32_t) ( data )[( offset ) + 2] << 16 ) \
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| ( (uint32_t) ( data )[( offset ) + 3] << 24 ) \
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)
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#endif
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/**
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* Put in memory a 32 bits unsigned integer in little-endian order.
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*
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* \param n 32 bits unsigned integer to put in memory.
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* \param data Base address of the memory where to put the 32
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* bits unsigned integer in.
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* \param offset Offset from \p base where to put the least significant
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* byte of the 32 bits unsigned integer \p n.
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*/
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#ifndef MBEDTLS_PUT_UINT32_LE
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#define MBEDTLS_PUT_UINT32_LE( n, data, offset ) \
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{ \
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( data )[( offset ) ] = MBEDTLS_BYTE_0( n ); \
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( data )[( offset ) + 1] = MBEDTLS_BYTE_1( n ); \
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( data )[( offset ) + 2] = MBEDTLS_BYTE_2( n ); \
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( data )[( offset ) + 3] = MBEDTLS_BYTE_3( n ); \
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}
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#endif
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/**
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* Get the unsigned 16 bits integer corresponding to two bytes in
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* little-endian order (LSB first).
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*
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* \param data Base address of the memory to get the two bytes from.
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* \param offset Offset from \p base of the first and least significant
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* byte of the two bytes to build the 16 bits unsigned
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* integer from.
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*/
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#ifndef MBEDTLS_GET_UINT16_LE
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#define MBEDTLS_GET_UINT16_LE( data, offset ) \
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( \
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( (uint16_t) ( data )[( offset ) ] ) \
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| ( (uint16_t) ( data )[( offset ) + 1] << 8 ) \
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)
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#endif
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/**
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* Put in memory a 16 bits unsigned integer in little-endian order.
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*
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* \param n 16 bits unsigned integer to put in memory.
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* \param data Base address of the memory where to put the 16
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* bits unsigned integer in.
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* \param offset Offset from \p base where to put the least significant
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* byte of the 16 bits unsigned integer \p n.
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*/
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#ifndef MBEDTLS_PUT_UINT16_LE
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#define MBEDTLS_PUT_UINT16_LE( n, data, offset ) \
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{ \
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( data )[( offset ) ] = MBEDTLS_BYTE_0( n ); \
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( data )[( offset ) + 1] = MBEDTLS_BYTE_1( n ); \
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}
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#endif
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/**
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* Get the unsigned 16 bits integer corresponding to two bytes in
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* big-endian order (MSB first).
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*
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* \param data Base address of the memory to get the two bytes from.
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* \param offset Offset from \p base of the first and most significant
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* byte of the two bytes to build the 16 bits unsigned
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* integer from.
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*/
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#ifndef MBEDTLS_GET_UINT16_BE
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#define MBEDTLS_GET_UINT16_BE( data, offset ) \
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( \
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( (uint16_t) ( data )[( offset ) ] << 8 ) \
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| ( (uint16_t) ( data )[( offset ) + 1] ) \
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)
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#endif
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/**
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* Put in memory a 16 bits unsigned integer in big-endian order.
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*
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* \param n 16 bits unsigned integer to put in memory.
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* \param data Base address of the memory where to put the 16
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* bits unsigned integer in.
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* \param offset Offset from \p base where to put the most significant
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* byte of the 16 bits unsigned integer \p n.
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*/
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#ifndef MBEDTLS_PUT_UINT16_BE
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#define MBEDTLS_PUT_UINT16_BE( n, data, offset ) \
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{ \
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( data )[( offset ) ] = MBEDTLS_BYTE_1( n ); \
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( data )[( offset ) + 1] = MBEDTLS_BYTE_0( n ); \
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}
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#endif
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/**
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* Get the unsigned 64 bits integer corresponding to eight bytes in
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* big-endian order (MSB first).
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*
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* \param data Base address of the memory to get the eight bytes from.
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* \param offset Offset from \p base of the first and most significant
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* byte of the eight bytes to build the 64 bits unsigned
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* integer from.
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*/
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#ifndef MBEDTLS_GET_UINT64_BE
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#define MBEDTLS_GET_UINT64_BE( data, offset ) \
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( \
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( (uint64_t) ( data )[( offset ) ] << 56 ) \
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| ( (uint64_t) ( data )[( offset ) + 1] << 48 ) \
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| ( (uint64_t) ( data )[( offset ) + 2] << 40 ) \
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| ( (uint64_t) ( data )[( offset ) + 3] << 32 ) \
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| ( (uint64_t) ( data )[( offset ) + 4] << 24 ) \
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| ( (uint64_t) ( data )[( offset ) + 5] << 16 ) \
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| ( (uint64_t) ( data )[( offset ) + 6] << 8 ) \
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| ( (uint64_t) ( data )[( offset ) + 7] ) \
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)
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#endif
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/**
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* Put in memory a 64 bits unsigned integer in big-endian order.
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*
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* \param n 64 bits unsigned integer to put in memory.
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* \param data Base address of the memory where to put the 64
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* bits unsigned integer in.
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* \param offset Offset from \p base where to put the most significant
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* byte of the 64 bits unsigned integer \p n.
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*/
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#ifndef MBEDTLS_PUT_UINT64_BE
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#define MBEDTLS_PUT_UINT64_BE( n, data, offset ) \
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{ \
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( data )[( offset ) ] = MBEDTLS_BYTE_7( n ); \
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( data )[( offset ) + 1] = MBEDTLS_BYTE_6( n ); \
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( data )[( offset ) + 2] = MBEDTLS_BYTE_5( n ); \
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( data )[( offset ) + 3] = MBEDTLS_BYTE_4( n ); \
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( data )[( offset ) + 4] = MBEDTLS_BYTE_3( n ); \
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( data )[( offset ) + 5] = MBEDTLS_BYTE_2( n ); \
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( data )[( offset ) + 6] = MBEDTLS_BYTE_1( n ); \
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( data )[( offset ) + 7] = MBEDTLS_BYTE_0( n ); \
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}
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#endif
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/**
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* Get the unsigned 64 bits integer corresponding to eight bytes in
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* little-endian order (LSB first).
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*
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* \param data Base address of the memory to get the eight bytes from.
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* \param offset Offset from \p base of the first and least significant
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* byte of the eight bytes to build the 64 bits unsigned
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* integer from.
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*/
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#ifndef MBEDTLS_GET_UINT64_LE
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#define MBEDTLS_GET_UINT64_LE( data, offset ) \
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( \
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( (uint64_t) ( data )[( offset ) + 7] << 56 ) \
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| ( (uint64_t) ( data )[( offset ) + 6] << 48 ) \
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| ( (uint64_t) ( data )[( offset ) + 5] << 40 ) \
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| ( (uint64_t) ( data )[( offset ) + 4] << 32 ) \
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| ( (uint64_t) ( data )[( offset ) + 3] << 24 ) \
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| ( (uint64_t) ( data )[( offset ) + 2] << 16 ) \
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| ( (uint64_t) ( data )[( offset ) + 1] << 8 ) \
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| ( (uint64_t) ( data )[( offset ) ] ) \
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)
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#endif
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/**
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* Put in memory a 64 bits unsigned integer in little-endian order.
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*
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* \param n 64 bits unsigned integer to put in memory.
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* \param data Base address of the memory where to put the 64
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* bits unsigned integer in.
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* \param offset Offset from \p base where to put the least significant
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* byte of the 64 bits unsigned integer \p n.
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*/
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#ifndef MBEDTLS_PUT_UINT64_LE
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#define MBEDTLS_PUT_UINT64_LE( n, data, offset ) \
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{ \
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( data )[( offset ) ] = MBEDTLS_BYTE_0( n ); \
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( data )[( offset ) + 1] = MBEDTLS_BYTE_1( n ); \
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( data )[( offset ) + 2] = MBEDTLS_BYTE_2( n ); \
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( data )[( offset ) + 3] = MBEDTLS_BYTE_3( n ); \
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( data )[( offset ) + 4] = MBEDTLS_BYTE_4( n ); \
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( data )[( offset ) + 5] = MBEDTLS_BYTE_5( n ); \
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( data )[( offset ) + 6] = MBEDTLS_BYTE_6( n ); \
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( data )[( offset ) + 7] = MBEDTLS_BYTE_7( n ); \
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}
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#endif
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#endif /* MBEDTLS_LIBRARY_COMMON_H */
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