| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
|---|---|
| 2 | /* |
| 3 | * Copyright (c) 2021, Linaro Limited. All rights reserved. |
| 4 | */ |
| 5 | |
| 6 | #ifndef _AEAD_H_ |
| 7 | #define _AEAD_H_ |
| 8 | |
| 9 | #include "common.h" |
| 10 | #include "core.h" |
| 11 | |
| 12 | #define QCE_MAX_KEY_SIZE 64 |
| 13 | #define QCE_CCM4309_SALT_SIZE 3 |
| 14 | |
| 15 | struct qce_aead_ctx { |
| 16 | u8 enc_key[QCE_MAX_KEY_SIZE]; |
| 17 | u8 auth_key[QCE_MAX_KEY_SIZE]; |
| 18 | u8 ccm4309_salt[QCE_CCM4309_SALT_SIZE]; |
| 19 | unsigned int enc_keylen; |
| 20 | unsigned int auth_keylen; |
| 21 | unsigned int authsize; |
| 22 | bool need_fallback; |
| 23 | struct crypto_aead *fallback; |
| 24 | }; |
| 25 | |
| 26 | struct qce_aead_reqctx { |
| 27 | unsigned long flags; |
| 28 | u8 *iv; |
| 29 | unsigned int ivsize; |
| 30 | int src_nents; |
| 31 | int dst_nents; |
| 32 | struct scatterlist result_sg; |
| 33 | struct scatterlist adata_sg; |
| 34 | struct sg_table dst_tbl; |
| 35 | struct sg_table src_tbl; |
| 36 | struct scatterlist *dst_sg; |
| 37 | struct scatterlist *src_sg; |
| 38 | unsigned int cryptlen; |
| 39 | unsigned int assoclen; |
| 40 | unsigned char *adata; |
| 41 | u8 ccm_nonce[QCE_MAX_NONCE]; |
| 42 | u8 ccmresult_buf[QCE_BAM_BURST_SIZE]; |
| 43 | u8 ccm_rfc4309_iv[QCE_MAX_IV_SIZE]; |
| 44 | struct aead_request fallback_req; |
| 45 | }; |
| 46 | |
| 47 | static inline struct qce_alg_template *to_aead_tmpl(struct crypto_aead *tfm) |
| 48 | { |
| 49 | struct aead_alg *alg = crypto_aead_alg(tfm); |
| 50 | |
| 51 | return container_of(alg, struct qce_alg_template, alg.aead); |
| 52 | } |
| 53 | |
| 54 | extern const struct qce_algo_ops aead_ops; |
| 55 | |
| 56 | #endif /* _AEAD_H_ */ |
| 57 |