forked from Minki/linux
92b279070d
We need to explicitly check the AVX and AES CPU features, as we can't
infer them from the related XSAVE feature flags. For example, the
Core i3 2310M passes the XSAVE feature test but does not implement
AES-NI.
Reported-and-tested-by: Stéphane Glondu <glondu@debian.org>
References: https://bugs.debian.org/800934
Fixes: ce4f5f9b65 ("x86/fpu, crypto x86/camellia_aesni_avx: Simplify...")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable <stable@vger.kernel.org> # 4.2
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
582 lines
16 KiB
C
582 lines
16 KiB
C
/*
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* Glue Code for x86_64/AVX/AES-NI assembler optimized version of Camellia
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*
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* Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/crypto.h>
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#include <linux/err.h>
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#include <crypto/ablk_helper.h>
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#include <crypto/algapi.h>
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#include <crypto/ctr.h>
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#include <crypto/lrw.h>
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#include <crypto/xts.h>
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#include <asm/fpu/api.h>
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#include <asm/crypto/camellia.h>
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#include <asm/crypto/glue_helper.h>
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#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
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/* 16-way parallel cipher functions (avx/aes-ni) */
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asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
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const u8 *src);
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EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way);
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asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
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const u8 *src);
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EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way);
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asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
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const u8 *src);
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EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way);
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asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
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const u8 *src, le128 *iv);
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EXPORT_SYMBOL_GPL(camellia_ctr_16way);
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asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
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const u8 *src, le128 *iv);
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EXPORT_SYMBOL_GPL(camellia_xts_enc_16way);
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asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
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const u8 *src, le128 *iv);
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EXPORT_SYMBOL_GPL(camellia_xts_dec_16way);
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void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
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{
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glue_xts_crypt_128bit_one(ctx, dst, src, iv,
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GLUE_FUNC_CAST(camellia_enc_blk));
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}
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EXPORT_SYMBOL_GPL(camellia_xts_enc);
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void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)
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{
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glue_xts_crypt_128bit_one(ctx, dst, src, iv,
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GLUE_FUNC_CAST(camellia_dec_blk));
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}
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EXPORT_SYMBOL_GPL(camellia_xts_dec);
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static const struct common_glue_ctx camellia_enc = {
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.num_funcs = 3,
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.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.funcs = { {
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.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_16way) }
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}, {
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.num_blocks = 2,
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.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) }
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}, {
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.num_blocks = 1,
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.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) }
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} }
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};
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static const struct common_glue_ctx camellia_ctr = {
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.num_funcs = 3,
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.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.funcs = { {
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.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) }
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}, {
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.num_blocks = 2,
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.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) }
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}, {
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.num_blocks = 1,
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.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) }
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} }
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};
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static const struct common_glue_ctx camellia_enc_xts = {
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.num_funcs = 2,
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.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.funcs = { {
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.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) }
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}, {
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.num_blocks = 1,
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.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) }
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} }
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};
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static const struct common_glue_ctx camellia_dec = {
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.num_funcs = 3,
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.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.funcs = { {
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.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_16way) }
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}, {
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.num_blocks = 2,
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.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) }
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}, {
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.num_blocks = 1,
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.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) }
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} }
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};
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static const struct common_glue_ctx camellia_dec_cbc = {
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.num_funcs = 3,
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.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.funcs = { {
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.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) }
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}, {
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.num_blocks = 2,
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.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) }
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}, {
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.num_blocks = 1,
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.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) }
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} }
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};
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static const struct common_glue_ctx camellia_dec_xts = {
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.num_funcs = 2,
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.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.funcs = { {
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.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
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.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) }
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}, {
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.num_blocks = 1,
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.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) }
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} }
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};
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static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes)
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{
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return glue_ecb_crypt_128bit(&camellia_enc, desc, dst, src, nbytes);
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}
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static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes)
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{
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return glue_ecb_crypt_128bit(&camellia_dec, desc, dst, src, nbytes);
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}
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static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes)
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{
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return glue_cbc_encrypt_128bit(GLUE_FUNC_CAST(camellia_enc_blk), desc,
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dst, src, nbytes);
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}
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static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes)
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{
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return glue_cbc_decrypt_128bit(&camellia_dec_cbc, desc, dst, src,
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nbytes);
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}
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static int ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes)
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{
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return glue_ctr_crypt_128bit(&camellia_ctr, desc, dst, src, nbytes);
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}
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static inline bool camellia_fpu_begin(bool fpu_enabled, unsigned int nbytes)
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{
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return glue_fpu_begin(CAMELLIA_BLOCK_SIZE,
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CAMELLIA_AESNI_PARALLEL_BLOCKS, NULL, fpu_enabled,
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nbytes);
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}
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static inline void camellia_fpu_end(bool fpu_enabled)
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{
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glue_fpu_end(fpu_enabled);
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}
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static int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key,
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unsigned int key_len)
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{
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return __camellia_setkey(crypto_tfm_ctx(tfm), in_key, key_len,
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&tfm->crt_flags);
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}
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struct crypt_priv {
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struct camellia_ctx *ctx;
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bool fpu_enabled;
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};
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static void encrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes)
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{
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const unsigned int bsize = CAMELLIA_BLOCK_SIZE;
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struct crypt_priv *ctx = priv;
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int i;
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ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes);
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if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) {
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camellia_ecb_enc_16way(ctx->ctx, srcdst, srcdst);
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srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
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nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
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}
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while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) {
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camellia_enc_blk_2way(ctx->ctx, srcdst, srcdst);
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srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS;
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nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS;
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}
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for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)
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camellia_enc_blk(ctx->ctx, srcdst, srcdst);
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}
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static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes)
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{
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const unsigned int bsize = CAMELLIA_BLOCK_SIZE;
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struct crypt_priv *ctx = priv;
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int i;
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ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes);
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if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) {
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camellia_ecb_dec_16way(ctx->ctx, srcdst, srcdst);
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srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
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nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
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}
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while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) {
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camellia_dec_blk_2way(ctx->ctx, srcdst, srcdst);
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srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS;
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nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS;
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}
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for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)
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camellia_dec_blk(ctx->ctx, srcdst, srcdst);
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}
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static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes)
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{
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struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
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be128 buf[CAMELLIA_AESNI_PARALLEL_BLOCKS];
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struct crypt_priv crypt_ctx = {
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.ctx = &ctx->camellia_ctx,
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.fpu_enabled = false,
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};
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struct lrw_crypt_req req = {
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.tbuf = buf,
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.tbuflen = sizeof(buf),
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.table_ctx = &ctx->lrw_table,
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.crypt_ctx = &crypt_ctx,
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.crypt_fn = encrypt_callback,
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};
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int ret;
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desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
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ret = lrw_crypt(desc, dst, src, nbytes, &req);
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camellia_fpu_end(crypt_ctx.fpu_enabled);
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return ret;
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}
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static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes)
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{
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struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
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be128 buf[CAMELLIA_AESNI_PARALLEL_BLOCKS];
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struct crypt_priv crypt_ctx = {
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.ctx = &ctx->camellia_ctx,
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.fpu_enabled = false,
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};
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struct lrw_crypt_req req = {
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.tbuf = buf,
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.tbuflen = sizeof(buf),
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.table_ctx = &ctx->lrw_table,
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.crypt_ctx = &crypt_ctx,
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.crypt_fn = decrypt_callback,
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};
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int ret;
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desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
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ret = lrw_crypt(desc, dst, src, nbytes, &req);
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camellia_fpu_end(crypt_ctx.fpu_enabled);
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return ret;
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}
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static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes)
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{
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struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
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return glue_xts_crypt_128bit(&camellia_enc_xts, desc, dst, src, nbytes,
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XTS_TWEAK_CAST(camellia_enc_blk),
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&ctx->tweak_ctx, &ctx->crypt_ctx);
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}
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static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes)
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{
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struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
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return glue_xts_crypt_128bit(&camellia_dec_xts, desc, dst, src, nbytes,
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XTS_TWEAK_CAST(camellia_enc_blk),
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&ctx->tweak_ctx, &ctx->crypt_ctx);
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}
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static struct crypto_alg cmll_algs[10] = { {
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.cra_name = "__ecb-camellia-aesni",
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.cra_driver_name = "__driver-ecb-camellia-aesni",
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.cra_priority = 0,
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.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
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CRYPTO_ALG_INTERNAL,
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.cra_blocksize = CAMELLIA_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct camellia_ctx),
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.cra_alignmask = 0,
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.cra_type = &crypto_blkcipher_type,
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.cra_module = THIS_MODULE,
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.cra_u = {
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.blkcipher = {
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.min_keysize = CAMELLIA_MIN_KEY_SIZE,
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.max_keysize = CAMELLIA_MAX_KEY_SIZE,
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.setkey = camellia_setkey,
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.encrypt = ecb_encrypt,
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.decrypt = ecb_decrypt,
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},
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},
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}, {
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.cra_name = "__cbc-camellia-aesni",
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.cra_driver_name = "__driver-cbc-camellia-aesni",
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.cra_priority = 0,
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.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
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CRYPTO_ALG_INTERNAL,
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.cra_blocksize = CAMELLIA_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct camellia_ctx),
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.cra_alignmask = 0,
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.cra_type = &crypto_blkcipher_type,
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.cra_module = THIS_MODULE,
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.cra_u = {
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.blkcipher = {
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.min_keysize = CAMELLIA_MIN_KEY_SIZE,
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.max_keysize = CAMELLIA_MAX_KEY_SIZE,
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.setkey = camellia_setkey,
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.encrypt = cbc_encrypt,
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.decrypt = cbc_decrypt,
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},
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},
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}, {
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.cra_name = "__ctr-camellia-aesni",
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.cra_driver_name = "__driver-ctr-camellia-aesni",
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.cra_priority = 0,
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.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
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CRYPTO_ALG_INTERNAL,
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.cra_blocksize = 1,
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.cra_ctxsize = sizeof(struct camellia_ctx),
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.cra_alignmask = 0,
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.cra_type = &crypto_blkcipher_type,
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.cra_module = THIS_MODULE,
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.cra_u = {
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.blkcipher = {
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.min_keysize = CAMELLIA_MIN_KEY_SIZE,
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.max_keysize = CAMELLIA_MAX_KEY_SIZE,
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.ivsize = CAMELLIA_BLOCK_SIZE,
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.setkey = camellia_setkey,
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.encrypt = ctr_crypt,
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.decrypt = ctr_crypt,
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},
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},
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}, {
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.cra_name = "__lrw-camellia-aesni",
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.cra_driver_name = "__driver-lrw-camellia-aesni",
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.cra_priority = 0,
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.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
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CRYPTO_ALG_INTERNAL,
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.cra_blocksize = CAMELLIA_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct camellia_lrw_ctx),
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.cra_alignmask = 0,
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.cra_type = &crypto_blkcipher_type,
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.cra_module = THIS_MODULE,
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.cra_exit = lrw_camellia_exit_tfm,
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.cra_u = {
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.blkcipher = {
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.min_keysize = CAMELLIA_MIN_KEY_SIZE +
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CAMELLIA_BLOCK_SIZE,
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.max_keysize = CAMELLIA_MAX_KEY_SIZE +
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CAMELLIA_BLOCK_SIZE,
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.ivsize = CAMELLIA_BLOCK_SIZE,
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.setkey = lrw_camellia_setkey,
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.encrypt = lrw_encrypt,
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.decrypt = lrw_decrypt,
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},
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},
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}, {
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.cra_name = "__xts-camellia-aesni",
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.cra_driver_name = "__driver-xts-camellia-aesni",
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.cra_priority = 0,
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.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
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CRYPTO_ALG_INTERNAL,
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.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
|
.cra_ctxsize = sizeof(struct camellia_xts_ctx),
|
|
.cra_alignmask = 0,
|
|
.cra_type = &crypto_blkcipher_type,
|
|
.cra_module = THIS_MODULE,
|
|
.cra_u = {
|
|
.blkcipher = {
|
|
.min_keysize = CAMELLIA_MIN_KEY_SIZE * 2,
|
|
.max_keysize = CAMELLIA_MAX_KEY_SIZE * 2,
|
|
.ivsize = CAMELLIA_BLOCK_SIZE,
|
|
.setkey = xts_camellia_setkey,
|
|
.encrypt = xts_encrypt,
|
|
.decrypt = xts_decrypt,
|
|
},
|
|
},
|
|
}, {
|
|
.cra_name = "ecb(camellia)",
|
|
.cra_driver_name = "ecb-camellia-aesni",
|
|
.cra_priority = 400,
|
|
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
|
|
.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
|
.cra_ctxsize = sizeof(struct async_helper_ctx),
|
|
.cra_alignmask = 0,
|
|
.cra_type = &crypto_ablkcipher_type,
|
|
.cra_module = THIS_MODULE,
|
|
.cra_init = ablk_init,
|
|
.cra_exit = ablk_exit,
|
|
.cra_u = {
|
|
.ablkcipher = {
|
|
.min_keysize = CAMELLIA_MIN_KEY_SIZE,
|
|
.max_keysize = CAMELLIA_MAX_KEY_SIZE,
|
|
.setkey = ablk_set_key,
|
|
.encrypt = ablk_encrypt,
|
|
.decrypt = ablk_decrypt,
|
|
},
|
|
},
|
|
}, {
|
|
.cra_name = "cbc(camellia)",
|
|
.cra_driver_name = "cbc-camellia-aesni",
|
|
.cra_priority = 400,
|
|
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
|
|
.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
|
.cra_ctxsize = sizeof(struct async_helper_ctx),
|
|
.cra_alignmask = 0,
|
|
.cra_type = &crypto_ablkcipher_type,
|
|
.cra_module = THIS_MODULE,
|
|
.cra_init = ablk_init,
|
|
.cra_exit = ablk_exit,
|
|
.cra_u = {
|
|
.ablkcipher = {
|
|
.min_keysize = CAMELLIA_MIN_KEY_SIZE,
|
|
.max_keysize = CAMELLIA_MAX_KEY_SIZE,
|
|
.ivsize = CAMELLIA_BLOCK_SIZE,
|
|
.setkey = ablk_set_key,
|
|
.encrypt = __ablk_encrypt,
|
|
.decrypt = ablk_decrypt,
|
|
},
|
|
},
|
|
}, {
|
|
.cra_name = "ctr(camellia)",
|
|
.cra_driver_name = "ctr-camellia-aesni",
|
|
.cra_priority = 400,
|
|
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
|
|
.cra_blocksize = 1,
|
|
.cra_ctxsize = sizeof(struct async_helper_ctx),
|
|
.cra_alignmask = 0,
|
|
.cra_type = &crypto_ablkcipher_type,
|
|
.cra_module = THIS_MODULE,
|
|
.cra_init = ablk_init,
|
|
.cra_exit = ablk_exit,
|
|
.cra_u = {
|
|
.ablkcipher = {
|
|
.min_keysize = CAMELLIA_MIN_KEY_SIZE,
|
|
.max_keysize = CAMELLIA_MAX_KEY_SIZE,
|
|
.ivsize = CAMELLIA_BLOCK_SIZE,
|
|
.setkey = ablk_set_key,
|
|
.encrypt = ablk_encrypt,
|
|
.decrypt = ablk_encrypt,
|
|
.geniv = "chainiv",
|
|
},
|
|
},
|
|
}, {
|
|
.cra_name = "lrw(camellia)",
|
|
.cra_driver_name = "lrw-camellia-aesni",
|
|
.cra_priority = 400,
|
|
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
|
|
.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
|
.cra_ctxsize = sizeof(struct async_helper_ctx),
|
|
.cra_alignmask = 0,
|
|
.cra_type = &crypto_ablkcipher_type,
|
|
.cra_module = THIS_MODULE,
|
|
.cra_init = ablk_init,
|
|
.cra_exit = ablk_exit,
|
|
.cra_u = {
|
|
.ablkcipher = {
|
|
.min_keysize = CAMELLIA_MIN_KEY_SIZE +
|
|
CAMELLIA_BLOCK_SIZE,
|
|
.max_keysize = CAMELLIA_MAX_KEY_SIZE +
|
|
CAMELLIA_BLOCK_SIZE,
|
|
.ivsize = CAMELLIA_BLOCK_SIZE,
|
|
.setkey = ablk_set_key,
|
|
.encrypt = ablk_encrypt,
|
|
.decrypt = ablk_decrypt,
|
|
},
|
|
},
|
|
}, {
|
|
.cra_name = "xts(camellia)",
|
|
.cra_driver_name = "xts-camellia-aesni",
|
|
.cra_priority = 400,
|
|
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
|
|
.cra_blocksize = CAMELLIA_BLOCK_SIZE,
|
|
.cra_ctxsize = sizeof(struct async_helper_ctx),
|
|
.cra_alignmask = 0,
|
|
.cra_type = &crypto_ablkcipher_type,
|
|
.cra_module = THIS_MODULE,
|
|
.cra_init = ablk_init,
|
|
.cra_exit = ablk_exit,
|
|
.cra_u = {
|
|
.ablkcipher = {
|
|
.min_keysize = CAMELLIA_MIN_KEY_SIZE * 2,
|
|
.max_keysize = CAMELLIA_MAX_KEY_SIZE * 2,
|
|
.ivsize = CAMELLIA_BLOCK_SIZE,
|
|
.setkey = ablk_set_key,
|
|
.encrypt = ablk_encrypt,
|
|
.decrypt = ablk_decrypt,
|
|
},
|
|
},
|
|
} };
|
|
|
|
static int __init camellia_aesni_init(void)
|
|
{
|
|
const char *feature_name;
|
|
|
|
if (!cpu_has_avx || !cpu_has_aes || !cpu_has_osxsave) {
|
|
pr_info("AVX or AES-NI instructions are not detected.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (!cpu_has_xfeatures(XSTATE_SSE | XSTATE_YMM, &feature_name)) {
|
|
pr_info("CPU feature '%s' is not supported.\n", feature_name);
|
|
return -ENODEV;
|
|
}
|
|
|
|
return crypto_register_algs(cmll_algs, ARRAY_SIZE(cmll_algs));
|
|
}
|
|
|
|
static void __exit camellia_aesni_fini(void)
|
|
{
|
|
crypto_unregister_algs(cmll_algs, ARRAY_SIZE(cmll_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");
|