LXR linux/drivers/crypto/qce/common.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
   4 */
   5
   6#ifndef _COMMON_H_
   7#define _COMMON_H_
   8
   9#include <linux/crypto.h>
  10#include <linux/types.h>
  11#include <crypto/aes.h>
  12#include <crypto/hash.h>
  13#include <crypto/internal/skcipher.h>
  14
  15/* xts du size */
  16#define QCE_SECTOR_SIZE                 512
  17
  18/* key size in bytes */
  19#define QCE_SHA_HMAC_KEY_SIZE           64
  20#define QCE_MAX_CIPHER_KEY_SIZE         AES_KEYSIZE_256
  21
  22/* IV length in bytes */
  23#define QCE_AES_IV_LENGTH               AES_BLOCK_SIZE
  24/* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
  25#define QCE_MAX_IV_SIZE                 AES_BLOCK_SIZE
  26
  27/* maximum nonce bytes  */
  28#define QCE_MAX_NONCE                   16
  29#define QCE_MAX_NONCE_WORDS             (QCE_MAX_NONCE / sizeof(u32))
  30
  31/* burst size alignment requirement */
  32#define QCE_MAX_ALIGN_SIZE              64
  33
  34/* cipher algorithms */
  35#define QCE_ALG_DES                     BIT(0)
  36#define QCE_ALG_3DES                    BIT(1)
  37#define QCE_ALG_AES                     BIT(2)
  38
  39/* hash and hmac algorithms */
  40#define QCE_HASH_SHA1                   BIT(3)
  41#define QCE_HASH_SHA256                 BIT(4)
  42#define QCE_HASH_SHA1_HMAC              BIT(5)
  43#define QCE_HASH_SHA256_HMAC            BIT(6)
  44#define QCE_HASH_AES_CMAC               BIT(7)
  45
  46/* cipher modes */
  47#define QCE_MODE_CBC                    BIT(8)
  48#define QCE_MODE_ECB                    BIT(9)
  49#define QCE_MODE_CTR                    BIT(10)
  50#define QCE_MODE_XTS                    BIT(11)
  51#define QCE_MODE_CCM                    BIT(12)
  52#define QCE_MODE_MASK                   GENMASK(12, 8)
  53
  54/* cipher encryption/decryption operations */
  55#define QCE_ENCRYPT                     BIT(13)
  56#define QCE_DECRYPT                     BIT(14)
  57
  58#define IS_DES(flags)                   (flags & QCE_ALG_DES)
  59#define IS_3DES(flags)                  (flags & QCE_ALG_3DES)
  60#define IS_AES(flags)                   (flags & QCE_ALG_AES)
  61
  62#define IS_SHA1(flags)                  (flags & QCE_HASH_SHA1)
  63#define IS_SHA256(flags)                (flags & QCE_HASH_SHA256)
  64#define IS_SHA1_HMAC(flags)             (flags & QCE_HASH_SHA1_HMAC)
  65#define IS_SHA256_HMAC(flags)           (flags & QCE_HASH_SHA256_HMAC)
  66#define IS_CMAC(flags)                  (flags & QCE_HASH_AES_CMAC)
  67#define IS_SHA(flags)                   (IS_SHA1(flags) || IS_SHA256(flags))
  68#define IS_SHA_HMAC(flags)              \
  69                (IS_SHA1_HMAC(flags) || IS_SHA256_HMAC(flags))
  70
  71#define IS_CBC(mode)                    (mode & QCE_MODE_CBC)
  72#define IS_ECB(mode)                    (mode & QCE_MODE_ECB)
  73#define IS_CTR(mode)                    (mode & QCE_MODE_CTR)
  74#define IS_XTS(mode)                    (mode & QCE_MODE_XTS)
  75#define IS_CCM(mode)                    (mode & QCE_MODE_CCM)
  76
  77#define IS_ENCRYPT(dir)                 (dir & QCE_ENCRYPT)
  78#define IS_DECRYPT(dir)                 (dir & QCE_DECRYPT)
  79
  80struct qce_alg_template {
  81        struct list_head entry;
  82        u32 crypto_alg_type;
  83        unsigned long alg_flags;
  84        const u32 *std_iv;
  85        union {
  86                struct skcipher_alg skcipher;
  87                struct ahash_alg ahash;
  88        } alg;
  89        struct qce_device *qce;
  90        const u8 *hash_zero;
  91        const u32 digest_size;
  92};
  93
  94void qce_cpu_to_be32p_array(__be32 *dst, const u8 *src, unsigned int len);
  95int qce_check_status(struct qce_device *qce, u32 *status);
  96void qce_get_version(struct qce_device *qce, u32 *major, u32 *minor, u32 *step);
  97int qce_start(struct crypto_async_request *async_req, u32 type, u32 totallen,
  98              u32 offset);
  99
 100#endif /* _COMMON_H_ */
 101