/********************************************************************************/ /* */ /* Swap */ /* Written by Ken Goldman */ /* IBM Thomas J. Watson Research Center */ /* */ /* Licenses and Notices */ /* */ /* 1. Copyright Licenses: */ /* */ /* - Trusted Computing Group (TCG) grants to the user of the source code in */ /* this specification (the "Source Code") a worldwide, irrevocable, */ /* nonexclusive, royalty free, copyright license to reproduce, create */ /* derivative works, distribute, display and perform the Source Code and */ /* derivative works thereof, and to grant others the rights granted herein. */ /* */ /* - The TCG grants to the user of the other parts of the specification */ /* (other than the Source Code) the rights to reproduce, distribute, */ /* display, and perform the specification solely for the purpose of */ /* developing products based on such documents. */ /* */ /* 2. Source Code Distribution Conditions: */ /* */ /* - Redistributions of Source Code must retain the above copyright licenses, */ /* this list of conditions and the following disclaimers. */ /* */ /* - Redistributions in binary form must reproduce the above copyright */ /* licenses, this list of conditions and the following disclaimers in the */ /* documentation and/or other materials provided with the distribution. */ /* */ /* 3. Disclaimers: */ /* */ /* - THE COPYRIGHT LICENSES SET FORTH ABOVE DO NOT REPRESENT ANY FORM OF */ /* LICENSE OR WAIVER, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, WITH */ /* RESPECT TO PATENT RIGHTS HELD BY TCG MEMBERS (OR OTHER THIRD PARTIES) */ /* THAT MAY BE NECESSARY TO IMPLEMENT THIS SPECIFICATION OR OTHERWISE. */ /* Contact TCG Administration (admin@trustedcomputinggroup.org) for */ /* information on specification licensing rights available through TCG */ /* membership agreements. */ /* */ /* - THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO EXPRESS OR IMPLIED */ /* WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR */ /* FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, COMPLETENESS, OR */ /* NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS, OR ANY WARRANTY */ /* OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. */ /* */ /* - Without limitation, TCG and its members and licensors disclaim all */ /* liability, including liability for infringement of any proprietary */ /* rights, relating to use of information in this specification and to the */ /* implementation of this specification, and TCG disclaims all liability for */ /* cost of procurement of substitute goods or services, lost profits, loss */ /* of use, loss of data or any incidental, consequential, direct, indirect, */ /* or special damages, whether under contract, tort, warranty or otherwise, */ /* arising in any way out of use or reliance upon this specification or any */ /* information herein. */ /* */ /* (c) Copyright IBM Corp. and others, 2016 - 2023 */ /* */ /********************************************************************************/ #ifndef _ENDIAN_SWAP_H #define _ENDIAN_SWAP_H #if LITTLE_ENDIAN_TPM #define TO_BIG_ENDIAN_UINT16(i) REVERSE_ENDIAN_16(i) #define FROM_BIG_ENDIAN_UINT16(i) REVERSE_ENDIAN_16(i) #define TO_BIG_ENDIAN_UINT32(i) REVERSE_ENDIAN_32(i) #define FROM_BIG_ENDIAN_UINT32(i) REVERSE_ENDIAN_32(i) #define TO_BIG_ENDIAN_UINT64(i) REVERSE_ENDIAN_64(i) #define FROM_BIG_ENDIAN_UINT64(i) REVERSE_ENDIAN_64(i) #else #define TO_BIG_ENDIAN_UINT16(i) (i) #define FROM_BIG_ENDIAN_UINT16(i) (i) #define TO_BIG_ENDIAN_UINT32(i) (i) #define FROM_BIG_ENDIAN_UINT32(i) (i) #define TO_BIG_ENDIAN_UINT64(i) (i) #define FROM_BIG_ENDIAN_UINT64(i) (i) #endif #if AUTO_ALIGN == NO /* The aggregation macros for machines that do not allow unaligned access or for little-endian machines. Aggregate bytes into an UINT */ #define BYTE_ARRAY_TO_UINT8(b) (uint8_t)((b)[0]) #define BYTE_ARRAY_TO_UINT16(b) ByteArrayToUint16((BYTE *)(b)) #define BYTE_ARRAY_TO_UINT32(b) ByteArrayToUint32((BYTE *)(b)) #define BYTE_ARRAY_TO_UINT64(b) ByteArrayToUint64((BYTE *)(b)) #define UINT8_TO_BYTE_ARRAY(i, b) ((b)[0] = (uint8_t)(i)) #define UINT16_TO_BYTE_ARRAY(i, b) Uint16ToByteArray((i), (BYTE *)(b)) #define UINT32_TO_BYTE_ARRAY(i, b) Uint32ToByteArray((i), (BYTE *)(b)) #define UINT64_TO_BYTE_ARRAY(i, b) Uint64ToByteArray((i), (BYTE *)(b)) #else // AUTO_ALIGN #if BIG_ENDIAN_TPM /* The big-endian macros for machines that allow unaligned memory access Aggregate a byte array into a UINT */ #define BYTE_ARRAY_TO_UINT8(b) *((uint8_t *)(b)) #define BYTE_ARRAY_TO_UINT16(b) *((uint16_t *)(b)) #define BYTE_ARRAY_TO_UINT32(b) *((uint32_t *)(b)) #define BYTE_ARRAY_TO_UINT64(b) *((uint64_t *)(b)) /* Disaggregate a UINT into a byte array */ #define UINT8_TO_BYTE_ARRAY(i, b) {*((uint8_t *)(b)) = (i);} #define UINT16_TO_BYTE_ARRAY(i, b) {*((uint16_t *)(b)) = (i);} #define UINT32_TO_BYTE_ARRAY(i, b) {*((uint32_t *)(b)) = (i);} #define UINT64_TO_BYTE_ARRAY(i, b) {*((uint64_t *)(b)) = (i);} #else /* the little endian macros for machines that allow unaligned memory access the big-endian macros for machines that allow unaligned memory access Aggregate a byte array into a UINT */ #define BYTE_ARRAY_TO_UINT8(b) *((uint8_t *)(b)) #define BYTE_ARRAY_TO_UINT16(b) REVERSE_ENDIAN_16(*((uint16_t *)(b))) #define BYTE_ARRAY_TO_UINT32(b) REVERSE_ENDIAN_32(*((uint32_t *)(b))) #define BYTE_ARRAY_TO_UINT64(b) REVERSE_ENDIAN_64(*((uint64_t *)(b))) /* Disaggregate a UINT into a byte array */ #define UINT8_TO_BYTE_ARRAY(i, b) {*((uint8_t *)(b)) = (i);} #define UINT16_TO_BYTE_ARRAY(i, b) {*((uint16_t *)(b)) = REVERSE_ENDIAN_16(i);} #define UINT32_TO_BYTE_ARRAY(i, b) {*((uint32_t *)(b)) = REVERSE_ENDIAN_32(i);} #define UINT64_TO_BYTE_ARRAY(i, b) {*((uint64_t *)(b)) = REVERSE_ENDIAN_64(i);} #endif // BIG_ENDIAN_TPM #endif // AUTO_ALIGN == NO #endif