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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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2aaba014b5
<linux/cryptohash.h> sounds very generic and important, like it's the header to include if you're doing cryptographic hashing in the kernel. But actually it only includes the library implementation of the SHA-1 compression function (not even the full SHA-1). This should basically never be used anymore; SHA-1 is no longer considered secure, and there are much better ways to do cryptographic hashing in the kernel. Most files that include this header don't actually need it. So in preparation for removing it, remove all these unneeded includes of it. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Glue code for the SHA256 Secure Hash Algorithm assembly implementation
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* using optimized ARM assembler and NEON instructions.
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*
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* Copyright © 2015 Google Inc.
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*
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* This file is based on sha256_ssse3_glue.c:
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* Copyright (C) 2013 Intel Corporation
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* Author: Tim Chen <tim.c.chen@linux.intel.com>
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*/
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#include <crypto/internal/hash.h>
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#include <linux/crypto.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/mm.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <crypto/sha.h>
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#include <crypto/sha256_base.h>
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#include <asm/simd.h>
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#include <asm/neon.h>
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#include "sha256_glue.h"
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asmlinkage void sha256_block_data_order(u32 *digest, const void *data,
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unsigned int num_blks);
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int crypto_sha256_arm_update(struct shash_desc *desc, const u8 *data,
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unsigned int len)
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{
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/* make sure casting to sha256_block_fn() is safe */
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BUILD_BUG_ON(offsetof(struct sha256_state, state) != 0);
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return sha256_base_do_update(desc, data, len,
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(sha256_block_fn *)sha256_block_data_order);
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}
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EXPORT_SYMBOL(crypto_sha256_arm_update);
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static int crypto_sha256_arm_final(struct shash_desc *desc, u8 *out)
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{
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sha256_base_do_finalize(desc,
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(sha256_block_fn *)sha256_block_data_order);
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return sha256_base_finish(desc, out);
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}
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int crypto_sha256_arm_finup(struct shash_desc *desc, const u8 *data,
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unsigned int len, u8 *out)
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{
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sha256_base_do_update(desc, data, len,
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(sha256_block_fn *)sha256_block_data_order);
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return crypto_sha256_arm_final(desc, out);
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}
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EXPORT_SYMBOL(crypto_sha256_arm_finup);
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static struct shash_alg algs[] = { {
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.digestsize = SHA256_DIGEST_SIZE,
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.init = sha256_base_init,
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.update = crypto_sha256_arm_update,
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.final = crypto_sha256_arm_final,
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.finup = crypto_sha256_arm_finup,
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.descsize = sizeof(struct sha256_state),
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.base = {
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.cra_name = "sha256",
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.cra_driver_name = "sha256-asm",
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.cra_priority = 150,
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.cra_blocksize = SHA256_BLOCK_SIZE,
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.cra_module = THIS_MODULE,
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}
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}, {
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.digestsize = SHA224_DIGEST_SIZE,
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.init = sha224_base_init,
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.update = crypto_sha256_arm_update,
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.final = crypto_sha256_arm_final,
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.finup = crypto_sha256_arm_finup,
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.descsize = sizeof(struct sha256_state),
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.base = {
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.cra_name = "sha224",
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.cra_driver_name = "sha224-asm",
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.cra_priority = 150,
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.cra_blocksize = SHA224_BLOCK_SIZE,
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.cra_module = THIS_MODULE,
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}
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} };
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static int __init sha256_mod_init(void)
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{
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int res = crypto_register_shashes(algs, ARRAY_SIZE(algs));
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if (res < 0)
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return res;
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if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && cpu_has_neon()) {
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res = crypto_register_shashes(sha256_neon_algs,
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ARRAY_SIZE(sha256_neon_algs));
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if (res < 0)
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crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
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}
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return res;
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}
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static void __exit sha256_mod_fini(void)
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{
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crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
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if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && cpu_has_neon())
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crypto_unregister_shashes(sha256_neon_algs,
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ARRAY_SIZE(sha256_neon_algs));
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}
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module_init(sha256_mod_init);
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module_exit(sha256_mod_fini);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm (ARM), including NEON");
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MODULE_ALIAS_CRYPTO("sha256");
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