mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-26 20:44:32 +08:00
a04ea6f7ff
The Camellia, Serpent and Twofish related header files only contain declarations that are shared between different implementations of the respective algorithms residing under arch/x86/crypto, and none of their contents should be used elsewhere. So move the header files into the same location, and use local #includes instead. Acked-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
138 lines
4.0 KiB
C
138 lines
4.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Glue Code for x86_64/AVX/AES-NI assembler optimized version of Camellia
|
|
*
|
|
* Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
|
|
*/
|
|
|
|
#include <crypto/algapi.h>
|
|
#include <crypto/internal/simd.h>
|
|
#include <linux/crypto.h>
|
|
#include <linux/err.h>
|
|
#include <linux/module.h>
|
|
#include <linux/types.h>
|
|
|
|
#include "camellia.h"
|
|
#include "ecb_cbc_helpers.h"
|
|
|
|
#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
|
|
|
|
/* 16-way parallel cipher functions (avx/aes-ni) */
|
|
asmlinkage void camellia_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
|
|
EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way);
|
|
|
|
asmlinkage void camellia_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
|
|
EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way);
|
|
|
|
asmlinkage void camellia_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
|
|
EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way);
|
|
|
|
static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
|
|
unsigned int keylen)
|
|
{
|
|
return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen);
|
|
}
|
|
|
|
static int ecb_encrypt(struct skcipher_request *req)
|
|
{
|
|
ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
|
|
ECB_BLOCK(CAMELLIA_AESNI_PARALLEL_BLOCKS, camellia_ecb_enc_16way);
|
|
ECB_BLOCK(2, camellia_enc_blk_2way);
|
|
ECB_BLOCK(1, camellia_enc_blk);
|
|
ECB_WALK_END();
|
|
}
|
|
|
|
static int ecb_decrypt(struct skcipher_request *req)
|
|
{
|
|
ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
|
|
ECB_BLOCK(CAMELLIA_AESNI_PARALLEL_BLOCKS, camellia_ecb_dec_16way);
|
|
ECB_BLOCK(2, camellia_dec_blk_2way);
|
|
ECB_BLOCK(1, camellia_dec_blk);
|
|
ECB_WALK_END();
|
|
}
|
|
|
|
static int cbc_encrypt(struct skcipher_request *req)
|
|
{
|
|
CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
|
|
CBC_ENC_BLOCK(camellia_enc_blk);
|
|
CBC_WALK_END();
|
|
}
|
|
|
|
static int cbc_decrypt(struct skcipher_request *req)
|
|
{
|
|
CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
|
|
CBC_DEC_BLOCK(CAMELLIA_AESNI_PARALLEL_BLOCKS, camellia_cbc_dec_16way);
|
|
CBC_DEC_BLOCK(2, camellia_decrypt_cbc_2way);
|
|
CBC_DEC_BLOCK(1, camellia_dec_blk);
|
|
CBC_WALK_END();
|
|
}
|
|
|
|
static struct skcipher_alg camellia_algs[] = {
|
|
{
|
|
.base.cra_name = "__ecb(camellia)",
|
|
.base.cra_driver_name = "__ecb-camellia-aesni",
|
|
.base.cra_priority = 400,
|
|
.base.cra_flags = CRYPTO_ALG_INTERNAL,
|
|
.base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
|
.base.cra_ctxsize = sizeof(struct camellia_ctx),
|
|
.base.cra_module = THIS_MODULE,
|
|
.min_keysize = CAMELLIA_MIN_KEY_SIZE,
|
|
.max_keysize = CAMELLIA_MAX_KEY_SIZE,
|
|
.setkey = camellia_setkey,
|
|
.encrypt = ecb_encrypt,
|
|
.decrypt = ecb_decrypt,
|
|
}, {
|
|
.base.cra_name = "__cbc(camellia)",
|
|
.base.cra_driver_name = "__cbc-camellia-aesni",
|
|
.base.cra_priority = 400,
|
|
.base.cra_flags = CRYPTO_ALG_INTERNAL,
|
|
.base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
|
.base.cra_ctxsize = sizeof(struct camellia_ctx),
|
|
.base.cra_module = THIS_MODULE,
|
|
.min_keysize = CAMELLIA_MIN_KEY_SIZE,
|
|
.max_keysize = CAMELLIA_MAX_KEY_SIZE,
|
|
.ivsize = CAMELLIA_BLOCK_SIZE,
|
|
.setkey = camellia_setkey,
|
|
.encrypt = cbc_encrypt,
|
|
.decrypt = cbc_decrypt,
|
|
}
|
|
};
|
|
|
|
static struct simd_skcipher_alg *camellia_simd_algs[ARRAY_SIZE(camellia_algs)];
|
|
|
|
static int __init camellia_aesni_init(void)
|
|
{
|
|
const char *feature_name;
|
|
|
|
if (!boot_cpu_has(X86_FEATURE_AVX) ||
|
|
!boot_cpu_has(X86_FEATURE_AES) ||
|
|
!boot_cpu_has(X86_FEATURE_OSXSAVE)) {
|
|
pr_info("AVX or AES-NI instructions are not detected.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
|
|
&feature_name)) {
|
|
pr_info("CPU feature '%s' is not supported.\n", feature_name);
|
|
return -ENODEV;
|
|
}
|
|
|
|
return simd_register_skciphers_compat(camellia_algs,
|
|
ARRAY_SIZE(camellia_algs),
|
|
camellia_simd_algs);
|
|
}
|
|
|
|
static void __exit camellia_aesni_fini(void)
|
|
{
|
|
simd_unregister_skciphers(camellia_algs, ARRAY_SIZE(camellia_algs),
|
|
camellia_simd_algs);
|
|
}
|
|
|
|
module_init(camellia_aesni_init);
|
|
module_exit(camellia_aesni_fini);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX optimized");
|
|
MODULE_ALIAS_CRYPTO("camellia");
|
|
MODULE_ALIAS_CRYPTO("camellia-asm");
|