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 #include <crypto/internal/aead.h> 15 16 /* xts du size */ 17 #define QCE_SECTOR_SIZE 512 18 19 /* key size in bytes */ 20 #define QCE_SHA_HMAC_KEY_SIZE 64 21 #define QCE_MAX_CIPHER_KEY_SIZE AES_KEYSIZE_256 22 23 /* IV length in bytes */ 24 #define QCE_AES_IV_LENGTH AES_BLOCK_SIZE 25 /* max of AES_BLOCK_SIZE */ 26 #define QCE_MAX_IV_SIZE AES_BLOCK_SIZE 27 28 /* maximum nonce bytes */ 29 #define QCE_MAX_NONCE 16 30 #define QCE_MAX_NONCE_WORDS (QCE_MAX_NONCE / sizeof(u32)) 31 32 /* burst size alignment requirement */ 33 #define QCE_MAX_ALIGN_SIZE 64 34 35 /* cipher algorithms */ 36 #define QCE_ALG_AES BIT(2) 37 38 /* hash and hmac algorithms */ 39 #define QCE_HASH_SHA256 BIT(4) 40 #define QCE_HASH_SHA256_HMAC BIT(6) 41 #define QCE_HASH_AES_CMAC BIT(7) 42 43 /* cipher modes */ 44 #define QCE_MODE_CBC BIT(8) 45 #define QCE_MODE_ECB BIT(9) 46 #define QCE_MODE_CTR BIT(10) 47 #define QCE_MODE_XTS BIT(11) 48 #define QCE_MODE_CCM BIT(12) 49 #define QCE_MODE_MASK GENMASK(12, 8) 50 51 #define QCE_MODE_CCM_RFC4309 BIT(13) 52 53 /* cipher encryption/decryption operations */ 54 #define QCE_ENCRYPT BIT(30) 55 #define QCE_DECRYPT BIT(31) 56 57 #define IS_AES(flags) (flags & QCE_ALG_AES) 58 59 #define IS_SHA256(flags) (flags & QCE_HASH_SHA256) 60 #define IS_SHA256_HMAC(flags) (flags & QCE_HASH_SHA256_HMAC) 61 #define IS_CMAC(flags) (flags & QCE_HASH_AES_CMAC) 62 #define IS_SHA(flags) IS_SHA256(flags) 63 #define IS_SHA_HMAC(flags) IS_SHA256_HMAC(flags) 64 65 #define IS_CBC(mode) (mode & QCE_MODE_CBC) 66 #define IS_CTR(mode) (mode & QCE_MODE_CTR) 67 #define IS_XTS(mode) (mode & QCE_MODE_XTS) 68 #define IS_CCM(mode) (mode & QCE_MODE_CCM) 69 #define IS_CCM_RFC4309(mode) ((mode) & QCE_MODE_CCM_RFC4309) 70 71 #define IS_ENCRYPT(dir) (dir & QCE_ENCRYPT) 72 #define IS_DECRYPT(dir) (dir & QCE_DECRYPT) 73 74 struct qce_alg_template { 75 struct list_head entry; 76 u32 crypto_alg_type; 77 unsigned long alg_flags; 78 const u32 *std_iv; 79 union { 80 struct skcipher_alg skcipher; 81 struct ahash_alg ahash; 82 struct aead_alg aead; 83 } alg; 84 struct qce_device *qce; 85 const u8 *hash_zero; 86 const u32 digest_size; 87 }; 88 89 void qce_cpu_to_be32p_array(__be32 *dst, const u8 *src, unsigned int len); 90 int qce_check_status(struct qce_device *qce, u32 *status); 91 void qce_get_version(struct qce_device *qce, u32 *major, u32 *minor, u32 *step); 92 int qce_start(struct crypto_async_request *async_req, u32 type); 93 94 #endif /* _COMMON_H_ */ 95