1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2022 Bjoern A. Zeeb 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#ifndef _LINUXKPI_CRYPTO_HASH_H 29#define _LINUXKPI_CRYPTO_HASH_H 30 31#include <linux/kernel.h> /* for pr_debug */ 32 33struct crypto_shash { 34}; 35 36struct shash_desc { 37 struct crypto_shash *tfm; 38}; 39 40static inline struct crypto_shash * 41crypto_alloc_shash(const char *algostr, int x, int y) 42{ 43 44 pr_debug("%s: TODO\n", __func__); 45 return (NULL); 46} 47 48static inline void 49crypto_free_shash(struct crypto_shash *csh) 50{ 51 pr_debug("%s: TODO\n", __func__); 52} 53 54static inline int 55crypto_shash_init(struct shash_desc *desc) 56{ 57 pr_debug("%s: TODO\n", __func__); 58 return (-ENXIO); 59} 60 61static inline int 62crypto_shash_final(struct shash_desc *desc, uint8_t *mic) 63{ 64 pr_debug("%s: TODO\n", __func__); 65 return (-ENXIO); 66} 67 68static inline int 69crypto_shash_setkey(struct crypto_shash *csh, const uint8_t *key, size_t keylen) 70{ 71 pr_debug("%s: TODO\n", __func__); 72 return (-ENXIO); 73} 74 75static inline int 76crypto_shash_update(struct shash_desc *desc, uint8_t *data, size_t datalen) 77{ 78 pr_debug("%s: TODO\n", __func__); 79 return (-ENXIO); 80} 81 82static inline void 83shash_desc_zero(struct shash_desc *desc) 84{ 85 86 explicit_bzero(desc, sizeof(*desc)); 87} 88 89/* XXX review this. */ 90#define SHASH_DESC_ON_STACK(desc, tfm) \ 91 uint8_t ___ ## desc ## _desc[sizeof(struct shash_desc)]; \ 92 struct shash_desc *desc = (struct shash_desc *)___ ## desc ## _desc 93 94#endif /* _LINUXKPI_CRYPTO_HASH_H */ 95