122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
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/*
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* Exynos FMP device information for FIPS
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*
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* Copyright (C) 2015 Samsung Electronics Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef _FMP_FIPS_FOPS_INFO_
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#define _FMP_FIPS_FOPS_INFO_
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/* API extensions for linux */
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#define FMP_HMAC_MAX_KEY_LEN 512
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#define FMP_CIPHER_MAX_KEY_LEN 64
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enum fmpdev_crypto_op_t {
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FMP_AES_CBC = 1,
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FMP_AES_XTS = 2,
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FMP_SHA2_256_HMAC = 3,
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FMP_SHA2_256 = 4,
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FMPFW_SHA2_256_HMAC = 5,
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FMPFW_SHA2_256 = 6,
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FMP_ALGORITHM_ALL, /* Keep updated - see below */
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};
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#define FMP_ALGORITHM_MAX (FMP_ALGORITHM_ALL - 1)
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/* the maximum of the above */
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#define EALG_MAX_BLOCK_LEN 16
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/* Values for hashes/MAC */
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#define AALG_MAX_RESULT_LEN 64
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/* maximum length of verbose alg names (depends on CRYPTO_MAX_ALG_NAME) */
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#define FMPDEV_MAX_ALG_NAME 64
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#define DEFAULT_PREALLOC_PAGES 32
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/* input of FMPGSESSION */
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struct session_op {
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__u32 cipher; /* cryptodev_crypto_op_t */
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__u32 mac; /* cryptodev_crypto_op_t */
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__u32 keylen;
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__u8 __user *key;
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__u32 mackeylen;
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__u8 __user *mackey;
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__u32 ses; /* session identifier */
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};
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struct session_info_op {
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__u32 ses; /* session identifier */
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/* verbose names for the requested ciphers */
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struct alg_info {
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char cra_name[FMPDEV_MAX_ALG_NAME];
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char cra_driver_name[FMPDEV_MAX_ALG_NAME];
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} cipher_info, hash_info;
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__u16 alignmask; /* alignment constraints */
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__u32 flags; /* SIOP_FLAGS_* */
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};
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/* If this flag is set then this algorithm uses
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* a driver only available in kernel (software drivers,
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* or drivers based on instruction sets do not set this flag).
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*
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* If multiple algorithms are involved (as in AEAD case), then
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* if one of them is kernel-driver-only this flag will be set.
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*/
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#define SIOP_FLAG_KERNEL_DRIVER_ONLY 1
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#define COP_ENCRYPT 0
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#define COP_DECRYPT 1
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/* input of FMPCRYPT */
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struct crypt_op {
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__u32 ses; /* session identifier */
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__u16 op; /* COP_ENCRYPT or COP_DECRYPT */
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__u16 flags; /* see COP_FLAG_* */
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__u32 len; /* length of source data */
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__u8 __user *src; /* source data */
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__u8 __user *dst; /* pointer to output data */
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/* pointer to output data for hash/MAC operations */
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__u8 __user *mac;
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/* initialization vector for encryption operations */
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__u8 __user *iv;
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__u32 data_unit_len;
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__u32 data_unit_seqnumber;
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__u8 __user *secondLastEncodedData;
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__u8 __user *thirdLastEncodedData;
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};
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#define COP_FLAG_NONE (0 << 0) /* totally no flag */
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#define COP_FLAG_UPDATE (1 << 0) /* multi-update hash mode */
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#define COP_FLAG_FINAL (1 << 1) /* multi-update final hash mode */
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#define COP_FLAG_WRITE_IV (1 << 2) /* update the IV during operation */
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#define COP_FLAG_NO_ZC (1 << 3) /* do not zero-copy */
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#define COP_FLAG_AEAD_TLS_TYPE (1 << 4) /* authenticate and encrypt using the
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* TLS protocol rules */
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#define COP_FLAG_AEAD_SRTP_TYPE (1 << 5) /* authenticate and encrypt using the
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* SRTP protocol rules */
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#define COP_FLAG_RESET (1 << 6) /* multi-update reset the state.
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* should be used in combination
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* with COP_FLAG_UPDATE */
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#define COP_FLAG_AES_CBC (1 << 7)
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#define COP_FLAG_AES_XTS (1 << 8)
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#define COP_FLAG_AES_CBC_MCT (1 << 9)
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#define FMPGSESSION _IOWR('c', 200, struct session_op)
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#define FMPFSESSION _IOWR('c', 201, __u32)
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#define FMPGSESSIONINFO _IOWR('c', 202, struct session_info_op)
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#define FMPCRYPT _IOWR('c', 203, struct crypt_op)
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#define FMP_AES_CBC_MCT _IOWR('c', 204, struct crypt_op)
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#endif
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