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Diffstat (limited to 'src/tpm2/swap.h')
| -rw-r--r-- | src/tpm2/swap.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/tpm2/swap.h b/src/tpm2/swap.h new file mode 100644 index 0000000..42a2440 --- /dev/null +++ b/src/tpm2/swap.h @@ -0,0 +1,120 @@ +/********************************************************************************/ +/* */ +/* Swap */ +/* Written by Ken Goldman */ +/* IBM Thomas J. Watson Research Center */ +/* $Id: swap.h 1490 2019-07-26 21:13:22Z kgoldman $ */ +/* */ +/* 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 - 2018 */ +/* */ +/********************************************************************************/ + +#ifndef SWAP_H +#define 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 |