1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved. 4 */ 5 6 #ifndef _CIPHER_H_ 7 #define _CIPHER_H_ 8 9 #include "common.h" 10 #include "core.h" 11 12 #define QCE_MAX_KEY_SIZE 64 13 14 struct qce_cipher_ctx { 15 u8 enc_key[QCE_MAX_KEY_SIZE]; 16 unsigned int enc_keylen; 17 struct crypto_skcipher *fallback; 18 }; 19 20 /** 21 * struct qce_cipher_reqctx - holds private cipher objects per request 22 * @flags: operation flags 23 * @iv: pointer to the IV 24 * @ivsize: IV size 25 * @src_nents: source entries 26 * @dst_nents: destination entries 27 * @result_sg: scatterlist used for result buffer 28 * @dst_tbl: destination sg table 29 * @dst_sg: destination sg pointer table beginning 30 * @src_tbl: source sg table 31 * @src_sg: source sg pointer table beginning; 32 * @cryptlen: crypto length 33 */ 34 struct qce_cipher_reqctx { 35 unsigned long flags; 36 u8 *iv; 37 unsigned int ivsize; 38 int src_nents; 39 int dst_nents; 40 struct scatterlist result_sg; 41 struct sg_table dst_tbl; 42 struct scatterlist *dst_sg; 43 struct scatterlist *src_sg; 44 unsigned int cryptlen; 45 struct skcipher_request fallback_req; // keep at the end 46 }; 47 to_cipher_tmpl(struct crypto_skcipher * tfm)48static inline struct qce_alg_template *to_cipher_tmpl(struct crypto_skcipher *tfm) 49 { 50 struct skcipher_alg *alg = crypto_skcipher_alg(tfm); 51 return container_of(alg, struct qce_alg_template, alg.skcipher); 52 } 53 54 extern const struct qce_algo_ops skcipher_ops; 55 56 #endif /* _CIPHER_H_ */ 57