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 33 struct crypto_shash { 34 }; 35 36 struct shash_desc { 37 struct crypto_shash *tfm; 38 }; 39 40 static inline struct crypto_shash * 41 crypto_alloc_shash(const char *algostr, int x, int y) 42 { 43 44 pr_debug("%s: TODO\n", __func__); 45 return (NULL); 46 } 47 48 static inline void 49 crypto_free_shash(struct crypto_shash *csh) 50 { 51 pr_debug("%s: TODO\n", __func__); 52 } 53 54 static inline int 55 crypto_shash_init(struct shash_desc *desc) 56 { 57 pr_debug("%s: TODO\n", __func__); 58 return (-ENXIO); 59 } 60 61 static inline int 62 crypto_shash_final(struct shash_desc *desc, uint8_t *mic) 63 { 64 pr_debug("%s: TODO\n", __func__); 65 return (-ENXIO); 66 } 67 68 static inline int 69 crypto_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 75 static inline int 76 crypto_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 82 static inline void 83 shash_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