[398] | 1 | /**
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| 2 | * \file padlock.h
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| 3 | *
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| 4 | * \brief VIA PadLock ACE for HW encryption/decryption supported by some
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| 5 | * processors
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| 6 | *
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| 7 | * \warning These functions are only for internal use by other library
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| 8 | * functions; you must not call them directly.
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| 9 | */
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| 10 | /*
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| 11 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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| 12 | * SPDX-License-Identifier: Apache-2.0
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| 13 | *
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| 14 | * Licensed under the Apache License, Version 2.0 (the "License"); you may
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| 15 | * not use this file except in compliance with the License.
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| 16 | * You may obtain a copy of the License at
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| 17 | *
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| 18 | * http://www.apache.org/licenses/LICENSE-2.0
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| 19 | *
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| 20 | * Unless required by applicable law or agreed to in writing, software
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| 21 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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| 22 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 23 | * See the License for the specific language governing permissions and
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| 24 | * limitations under the License.
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| 25 | *
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| 26 | * This file is part of mbed TLS (https://tls.mbed.org)
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| 27 | */
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| 28 | #ifndef MBEDTLS_PADLOCK_H
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| 29 | #define MBEDTLS_PADLOCK_H
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| 30 |
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| 31 | #if !defined(MBEDTLS_CONFIG_FILE)
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| 32 | #include "config.h"
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| 33 | #else
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| 34 | #include MBEDTLS_CONFIG_FILE
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| 35 | #endif
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| 36 |
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| 37 | #include "aes.h"
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| 38 |
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| 39 | #define MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED -0x0030 /**< Input data should be aligned. */
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| 40 |
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| 41 | #if defined(__has_feature)
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| 42 | #if __has_feature(address_sanitizer)
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| 43 | #define MBEDTLS_HAVE_ASAN
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| 44 | #endif
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| 45 | #endif
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| 46 |
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| 47 | /* Some versions of ASan result in errors about not enough registers */
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| 48 | #if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && defined(__i386__) && \
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| 49 | !defined(MBEDTLS_HAVE_ASAN)
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| 50 |
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| 51 | #ifndef MBEDTLS_HAVE_X86
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| 52 | #define MBEDTLS_HAVE_X86
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| 53 | #endif
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| 54 |
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| 55 | #include <stdint.h>
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| 56 |
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| 57 | #define MBEDTLS_PADLOCK_RNG 0x000C
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| 58 | #define MBEDTLS_PADLOCK_ACE 0x00C0
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| 59 | #define MBEDTLS_PADLOCK_PHE 0x0C00
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| 60 | #define MBEDTLS_PADLOCK_PMM 0x3000
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| 61 |
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| 62 | #define MBEDTLS_PADLOCK_ALIGN16(x) (uint32_t *) (16 + ((int32_t) x & ~15))
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| 63 |
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| 64 | #ifdef __cplusplus
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| 65 | extern "C" {
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| 66 | #endif
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| 67 |
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| 68 | /**
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| 69 | * \brief Internal PadLock detection routine
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| 70 | *
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| 71 | * \note This function is only for internal use by other library
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| 72 | * functions; you must not call it directly.
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| 73 | *
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| 74 | * \param feature The feature to detect
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| 75 | *
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| 76 | * \return 1 if CPU has support for the feature, 0 otherwise
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| 77 | */
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| 78 | int mbedtls_padlock_has_support( int feature );
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| 79 |
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| 80 | /**
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| 81 | * \brief Internal PadLock AES-ECB block en(de)cryption
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| 82 | *
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| 83 | * \note This function is only for internal use by other library
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| 84 | * functions; you must not call it directly.
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| 85 | *
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| 86 | * \param ctx AES context
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| 87 | * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
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| 88 | * \param input 16-byte input block
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| 89 | * \param output 16-byte output block
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| 90 | *
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| 91 | * \return 0 if success, 1 if operation failed
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| 92 | */
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| 93 | int mbedtls_padlock_xcryptecb( mbedtls_aes_context *ctx,
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| 94 | int mode,
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| 95 | const unsigned char input[16],
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| 96 | unsigned char output[16] );
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| 97 |
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| 98 | /**
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| 99 | * \brief Internal PadLock AES-CBC buffer en(de)cryption
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| 100 | *
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| 101 | * \note This function is only for internal use by other library
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| 102 | * functions; you must not call it directly.
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| 103 | *
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| 104 | * \param ctx AES context
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| 105 | * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
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| 106 | * \param length length of the input data
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| 107 | * \param iv initialization vector (updated after use)
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| 108 | * \param input buffer holding the input data
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| 109 | * \param output buffer holding the output data
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| 110 | *
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| 111 | * \return 0 if success, 1 if operation failed
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| 112 | */
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| 113 | int mbedtls_padlock_xcryptcbc( mbedtls_aes_context *ctx,
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| 114 | int mode,
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| 115 | size_t length,
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| 116 | unsigned char iv[16],
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| 117 | const unsigned char *input,
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| 118 | unsigned char *output );
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| 119 |
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| 120 | #ifdef __cplusplus
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| 121 | }
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| 122 | #endif
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| 123 |
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| 124 | #endif /* HAVE_X86 */
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| 125 |
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| 126 | #endif /* padlock.h */
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