1 /** 2 * \file padlock.h 3 * 4 * \brief VIA PadLock ACE for HW encryption/decryption supported by some 5 * processors 6 * 7 * \warning These functions are only for internal use by other library 8 * functions; you must not call them directly. 9 */ 10 /* 11 * Copyright The Mbed TLS Contributors 12 * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later 13 * 14 * This file is provided under the Apache License 2.0, or the 15 * GNU General Public License v2.0 or later. 16 * 17 * ********** 18 * Apache License 2.0: 19 * 20 * Licensed under the Apache License, Version 2.0 (the "License"); you may 21 * not use this file except in compliance with the License. 22 * You may obtain a copy of the License at 23 * 24 * http://www.apache.org/licenses/LICENSE-2.0 25 * 26 * Unless required by applicable law or agreed to in writing, software 27 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 28 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 29 * See the License for the specific language governing permissions and 30 * limitations under the License. 31 * 32 * ********** 33 * 34 * ********** 35 * GNU General Public License v2.0 or later: 36 * 37 * This program is free software; you can redistribute it and/or modify 38 * it under the terms of the GNU General Public License as published by 39 * the Free Software Foundation; either version 2 of the License, or 40 * (at your option) any later version. 41 * 42 * This program is distributed in the hope that it will be useful, 43 * but WITHOUT ANY WARRANTY; without even the implied warranty of 44 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 45 * GNU General Public License for more details. 46 * 47 * You should have received a copy of the GNU General Public License along 48 * with this program; if not, write to the Free Software Foundation, Inc., 49 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 50 * 51 * ********** 52 */ 53 #ifndef MBEDTLS_PADLOCK_H 54 #define MBEDTLS_PADLOCK_H 55 56 #if !defined(MBEDTLS_CONFIG_FILE) 57 #include "config.h" 58 #else 59 #include MBEDTLS_CONFIG_FILE 60 #endif 61 62 #include "aes.h" 63 64 #define MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED -0x0030 /**< Input data should be aligned. */ 65 66 #if defined(__has_feature) 67 #if __has_feature(address_sanitizer) 68 #define MBEDTLS_HAVE_ASAN 69 #endif 70 #endif 71 72 /* Some versions of ASan result in errors about not enough registers */ 73 #if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && defined(__i386__) && \ 74 !defined(MBEDTLS_HAVE_ASAN) 75 76 #ifndef MBEDTLS_HAVE_X86 77 #define MBEDTLS_HAVE_X86 78 #endif 79 80 #include <stdint.h> 81 82 #define MBEDTLS_PADLOCK_RNG 0x000C 83 #define MBEDTLS_PADLOCK_ACE 0x00C0 84 #define MBEDTLS_PADLOCK_PHE 0x0C00 85 #define MBEDTLS_PADLOCK_PMM 0x3000 86 87 #define MBEDTLS_PADLOCK_ALIGN16(x) (uint32_t *) (16 + ((int32_t) (x) & ~15)) 88 89 #ifdef __cplusplus 90 extern "C" { 91 #endif 92 93 /** 94 * \brief Internal PadLock detection routine 95 * 96 * \note This function is only for internal use by other library 97 * functions; you must not call it directly. 98 * 99 * \param feature The feature to detect 100 * 101 * \return non-zero if CPU has support for the feature, 0 otherwise 102 */ 103 int mbedtls_padlock_has_support( int feature ); 104 105 /** 106 * \brief Internal PadLock AES-ECB block en(de)cryption 107 * 108 * \note This function is only for internal use by other library 109 * functions; you must not call it directly. 110 * 111 * \param ctx AES context 112 * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT 113 * \param input 16-byte input block 114 * \param output 16-byte output block 115 * 116 * \return 0 if success, 1 if operation failed 117 */ 118 int mbedtls_padlock_xcryptecb( mbedtls_aes_context *ctx, 119 int mode, 120 const unsigned char input[16], 121 unsigned char output[16] ); 122 123 /** 124 * \brief Internal PadLock AES-CBC buffer en(de)cryption 125 * 126 * \note This function is only for internal use by other library 127 * functions; you must not call it directly. 128 * 129 * \param ctx AES context 130 * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT 131 * \param length length of the input data 132 * \param iv initialization vector (updated after use) 133 * \param input buffer holding the input data 134 * \param output buffer holding the output data 135 * 136 * \return 0 if success, 1 if operation failed 137 */ 138 int mbedtls_padlock_xcryptcbc( mbedtls_aes_context *ctx, 139 int mode, 140 size_t length, 141 unsigned char iv[16], 142 const unsigned char *input, 143 unsigned char *output ); 144 145 #ifdef __cplusplus 146 } 147 #endif 148 149 #endif /* HAVE_X86 */ 150 151 #endif /* padlock.h */ 152