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