mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 14:11:52 +00:00
5f60d5f6bb
asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* sha512-ce-glue.c - SHA-384/SHA-512 using ARMv8 Crypto Extensions
|
|
*
|
|
* Copyright (C) 2018 Linaro Ltd <ard.biesheuvel@linaro.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <asm/neon.h>
|
|
#include <asm/simd.h>
|
|
#include <linux/unaligned.h>
|
|
#include <crypto/internal/hash.h>
|
|
#include <crypto/internal/simd.h>
|
|
#include <crypto/sha2.h>
|
|
#include <crypto/sha512_base.h>
|
|
#include <linux/cpufeature.h>
|
|
#include <linux/crypto.h>
|
|
#include <linux/module.h>
|
|
|
|
MODULE_DESCRIPTION("SHA-384/SHA-512 secure hash using ARMv8 Crypto Extensions");
|
|
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_ALIAS_CRYPTO("sha384");
|
|
MODULE_ALIAS_CRYPTO("sha512");
|
|
|
|
asmlinkage int __sha512_ce_transform(struct sha512_state *sst, u8 const *src,
|
|
int blocks);
|
|
|
|
asmlinkage void sha512_block_data_order(u64 *digest, u8 const *src, int blocks);
|
|
|
|
static void sha512_ce_transform(struct sha512_state *sst, u8 const *src,
|
|
int blocks)
|
|
{
|
|
while (blocks) {
|
|
int rem;
|
|
|
|
kernel_neon_begin();
|
|
rem = __sha512_ce_transform(sst, src, blocks);
|
|
kernel_neon_end();
|
|
src += (blocks - rem) * SHA512_BLOCK_SIZE;
|
|
blocks = rem;
|
|
}
|
|
}
|
|
|
|
static void sha512_arm64_transform(struct sha512_state *sst, u8 const *src,
|
|
int blocks)
|
|
{
|
|
sha512_block_data_order(sst->state, src, blocks);
|
|
}
|
|
|
|
static int sha512_ce_update(struct shash_desc *desc, const u8 *data,
|
|
unsigned int len)
|
|
{
|
|
sha512_block_fn *fn = crypto_simd_usable() ? sha512_ce_transform
|
|
: sha512_arm64_transform;
|
|
|
|
sha512_base_do_update(desc, data, len, fn);
|
|
return 0;
|
|
}
|
|
|
|
static int sha512_ce_finup(struct shash_desc *desc, const u8 *data,
|
|
unsigned int len, u8 *out)
|
|
{
|
|
sha512_block_fn *fn = crypto_simd_usable() ? sha512_ce_transform
|
|
: sha512_arm64_transform;
|
|
|
|
sha512_base_do_update(desc, data, len, fn);
|
|
sha512_base_do_finalize(desc, fn);
|
|
return sha512_base_finish(desc, out);
|
|
}
|
|
|
|
static int sha512_ce_final(struct shash_desc *desc, u8 *out)
|
|
{
|
|
sha512_block_fn *fn = crypto_simd_usable() ? sha512_ce_transform
|
|
: sha512_arm64_transform;
|
|
|
|
sha512_base_do_finalize(desc, fn);
|
|
return sha512_base_finish(desc, out);
|
|
}
|
|
|
|
static struct shash_alg algs[] = { {
|
|
.init = sha384_base_init,
|
|
.update = sha512_ce_update,
|
|
.final = sha512_ce_final,
|
|
.finup = sha512_ce_finup,
|
|
.descsize = sizeof(struct sha512_state),
|
|
.digestsize = SHA384_DIGEST_SIZE,
|
|
.base.cra_name = "sha384",
|
|
.base.cra_driver_name = "sha384-ce",
|
|
.base.cra_priority = 200,
|
|
.base.cra_blocksize = SHA512_BLOCK_SIZE,
|
|
.base.cra_module = THIS_MODULE,
|
|
}, {
|
|
.init = sha512_base_init,
|
|
.update = sha512_ce_update,
|
|
.final = sha512_ce_final,
|
|
.finup = sha512_ce_finup,
|
|
.descsize = sizeof(struct sha512_state),
|
|
.digestsize = SHA512_DIGEST_SIZE,
|
|
.base.cra_name = "sha512",
|
|
.base.cra_driver_name = "sha512-ce",
|
|
.base.cra_priority = 200,
|
|
.base.cra_blocksize = SHA512_BLOCK_SIZE,
|
|
.base.cra_module = THIS_MODULE,
|
|
} };
|
|
|
|
static int __init sha512_ce_mod_init(void)
|
|
{
|
|
return crypto_register_shashes(algs, ARRAY_SIZE(algs));
|
|
}
|
|
|
|
static void __exit sha512_ce_mod_fini(void)
|
|
{
|
|
crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
|
|
}
|
|
|
|
module_cpu_feature_match(SHA512, sha512_ce_mod_init);
|
|
module_exit(sha512_ce_mod_fini);
|