Chia-Wei Wang | 6e84474 | 2021-07-30 09:08:03 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Copyright (c) 2021 ASPEED Technology Inc. |
| 4 | * Author: ChiaWei Wang <chiawei_wang@aspeedtech.com> |
| 5 | */ |
| 6 | |
| 7 | #define LOG_CATEGORY UCLASS_HASH |
| 8 | |
Chia-Wei Wang | 6e84474 | 2021-07-30 09:08:03 +0800 | [diff] [blame] | 9 | #include <dm.h> |
| 10 | #include <asm/global_data.h> |
| 11 | #include <u-boot/hash.h> |
| 12 | #include <errno.h> |
| 13 | #include <fdtdec.h> |
| 14 | #include <malloc.h> |
| 15 | #include <asm/io.h> |
| 16 | #include <linux/list.h> |
| 17 | |
| 18 | struct hash_info { |
| 19 | char *name; |
| 20 | uint32_t digest_size; |
| 21 | }; |
| 22 | |
| 23 | static const struct hash_info hash_info[HASH_ALGO_NUM] = { |
| 24 | [HASH_ALGO_CRC16_CCITT] = { "crc16-ccitt", 2 }, |
| 25 | [HASH_ALGO_CRC32] = { "crc32", 4 }, |
| 26 | [HASH_ALGO_MD5] = { "md5", 16 }, |
| 27 | [HASH_ALGO_SHA1] = { "sha1", 20 }, |
| 28 | [HASH_ALGO_SHA256] = { "sha256", 32 }, |
| 29 | [HASH_ALGO_SHA384] = { "sha384", 48 }, |
| 30 | [HASH_ALGO_SHA512] = { "sha512", 64}, |
| 31 | }; |
| 32 | |
| 33 | enum HASH_ALGO hash_algo_lookup_by_name(const char *name) |
| 34 | { |
| 35 | int i; |
| 36 | |
| 37 | if (!name) |
| 38 | return HASH_ALGO_INVALID; |
| 39 | |
| 40 | for (i = 0; i < HASH_ALGO_NUM; ++i) |
| 41 | if (!strcmp(name, hash_info[i].name)) |
| 42 | return i; |
| 43 | |
| 44 | return HASH_ALGO_INVALID; |
| 45 | } |
| 46 | |
| 47 | ssize_t hash_algo_digest_size(enum HASH_ALGO algo) |
| 48 | { |
| 49 | if (algo >= HASH_ALGO_NUM) |
| 50 | return -EINVAL; |
| 51 | |
| 52 | return hash_info[algo].digest_size; |
| 53 | } |
| 54 | |
| 55 | const char *hash_algo_name(enum HASH_ALGO algo) |
| 56 | { |
| 57 | if (algo >= HASH_ALGO_NUM) |
| 58 | return NULL; |
| 59 | |
| 60 | return hash_info[algo].name; |
| 61 | } |
| 62 | |
| 63 | int hash_digest(struct udevice *dev, enum HASH_ALGO algo, |
| 64 | const void *ibuf, const uint32_t ilen, |
| 65 | void *obuf) |
| 66 | { |
| 67 | struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); |
| 68 | |
| 69 | if (!ops->hash_digest) |
| 70 | return -ENOSYS; |
| 71 | |
| 72 | return ops->hash_digest(dev, algo, ibuf, ilen, obuf); |
| 73 | } |
| 74 | |
| 75 | int hash_digest_wd(struct udevice *dev, enum HASH_ALGO algo, |
| 76 | const void *ibuf, const uint32_t ilen, |
| 77 | void *obuf, uint32_t chunk_sz) |
| 78 | { |
| 79 | struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); |
| 80 | |
| 81 | if (!ops->hash_digest_wd) |
| 82 | return -ENOSYS; |
| 83 | |
| 84 | return ops->hash_digest_wd(dev, algo, ibuf, ilen, obuf, chunk_sz); |
| 85 | } |
| 86 | |
| 87 | int hash_init(struct udevice *dev, enum HASH_ALGO algo, void **ctxp) |
| 88 | { |
| 89 | struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); |
| 90 | |
| 91 | if (!ops->hash_init) |
| 92 | return -ENOSYS; |
| 93 | |
| 94 | return ops->hash_init(dev, algo, ctxp); |
| 95 | } |
| 96 | |
| 97 | int hash_update(struct udevice *dev, void *ctx, const void *ibuf, const uint32_t ilen) |
| 98 | { |
| 99 | struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); |
| 100 | |
| 101 | if (!ops->hash_update) |
| 102 | return -ENOSYS; |
| 103 | |
| 104 | return ops->hash_update(dev, ctx, ibuf, ilen); |
| 105 | } |
| 106 | |
| 107 | int hash_finish(struct udevice *dev, void *ctx, void *obuf) |
| 108 | { |
| 109 | struct hash_ops *ops = (struct hash_ops *)device_get_ops(dev); |
| 110 | |
| 111 | if (!ops->hash_finish) |
| 112 | return -ENOSYS; |
| 113 | |
| 114 | return ops->hash_finish(dev, ctx, obuf); |
| 115 | } |
| 116 | |
| 117 | UCLASS_DRIVER(hash) = { |
| 118 | .id = UCLASS_HASH, |
| 119 | .name = "hash", |
| 120 | }; |