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crypto: x86/camellia - drop dependency on glue helper 

Replace the glue helper dependency with implementations of ECB and CBC
based on the new CPP macros, which avoid the need for indirect calls.

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>
master
Ard Biesheuvel 2021-01-05 17:48:03 +01:00 committed by Herbert Xu
parent 827ee47228
commit 407d409a81
4 changed files with 67 additions and 168 deletions
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85
arch/x86/crypto/camellia_aesni_avx2_glue.c
View File

@ -6,7 +6,6 @@
*/
#include <asm/crypto/camellia.h>
#include <asm/crypto/glue_helper.h>
#include <crypto/algapi.h>
#include <crypto/internal/simd.h>
#include <linux/crypto.h>
@ -14,6 +13,8 @@
#include <linux/module.h>
#include <linux/types.h>
#include "ecb_cbc_helpers.h"
#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
#define CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS 32
@ -23,63 +24,6 @@ asmlinkage void camellia_ecb_dec_32way(const void *ctx, u8 *dst, const u8 *src);
asmlinkage void camellia_cbc_dec_32way(const void *ctx, u8 *dst, const u8 *src);
static const struct common_glue_ctx camellia_enc = {
.num_funcs = 4,
.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,
.fn_u = { .ecb = camellia_ecb_enc_32way }
}, {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.fn_u = { .ecb = camellia_ecb_enc_16way }
}, {
.num_blocks = 2,
.fn_u = { .ecb = camellia_enc_blk_2way }
}, {
.num_blocks = 1,
.fn_u = { .ecb = camellia_enc_blk }
} }
};
static const struct common_glue_ctx camellia_dec = {
.num_funcs = 4,
.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,
.fn_u = { .ecb = camellia_ecb_dec_32way }
}, {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.fn_u = { .ecb = camellia_ecb_dec_16way }
}, {
.num_blocks = 2,
.fn_u = { .ecb = camellia_dec_blk_2way }
}, {
.num_blocks = 1,
.fn_u = { .ecb = camellia_dec_blk }
} }
};
static const struct common_glue_ctx camellia_dec_cbc = {
.num_funcs = 4,
.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,
.fn_u = { .cbc = camellia_cbc_dec_32way }
}, {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.fn_u = { .cbc = camellia_cbc_dec_16way }
}, {
.num_blocks = 2,
.fn_u = { .cbc = camellia_decrypt_cbc_2way }
}, {
.num_blocks = 1,
.fn_u = { .cbc = camellia_dec_blk }
} }
};
static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
@ -88,22 +32,39 @@ static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
static int ecb_encrypt(struct skcipher_request *req)
{
return glue_ecb_req_128bit(&camellia_enc, req);
ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
ECB_BLOCK(CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, camellia_ecb_enc_32way);
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)
{
return glue_ecb_req_128bit(&camellia_dec, req);
ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
ECB_BLOCK(CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, camellia_ecb_dec_32way);
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)
{
return glue_cbc_encrypt_req_128bit(camellia_enc_blk, 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)
{
return glue_cbc_decrypt_req_128bit(&camellia_dec_cbc, req);
CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
CBC_DEC_BLOCK(CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, camellia_cbc_dec_32way);
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[] = {

73
arch/x86/crypto/camellia_aesni_avx_glue.c
View File

@ -6,7 +6,6 @@
*/
#include <asm/crypto/camellia.h>
#include <asm/crypto/glue_helper.h>
#include <crypto/algapi.h>
#include <crypto/internal/simd.h>
#include <linux/crypto.h>
@ -14,6 +13,8 @@
#include <linux/module.h>
#include <linux/types.h>
#include "ecb_cbc_helpers.h"
#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
/* 16-way parallel cipher functions (avx/aes-ni) */
@ -26,54 +27,6 @@ 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 const struct common_glue_ctx camellia_enc = {
.num_funcs = 3,
.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.fn_u = { .ecb = camellia_ecb_enc_16way }
}, {
.num_blocks = 2,
.fn_u = { .ecb = camellia_enc_blk_2way }
}, {
.num_blocks = 1,
.fn_u = { .ecb = camellia_enc_blk }
} }
};
static const struct common_glue_ctx camellia_dec = {
.num_funcs = 3,
.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.fn_u = { .ecb = camellia_ecb_dec_16way }
}, {
.num_blocks = 2,
.fn_u = { .ecb = camellia_dec_blk_2way }
}, {
.num_blocks = 1,
.fn_u = { .ecb = camellia_dec_blk }
} }
};
static const struct common_glue_ctx camellia_dec_cbc = {
.num_funcs = 3,
.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.fn_u = { .cbc = camellia_cbc_dec_16way }
}, {
.num_blocks = 2,
.fn_u = { .cbc = camellia_decrypt_cbc_2way }
}, {
.num_blocks = 1,
.fn_u = { .cbc = camellia_dec_blk }
} }
};
static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
@ -82,22 +35,36 @@ static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
static int ecb_encrypt(struct skcipher_request *req)
{
return glue_ecb_req_128bit(&camellia_enc, 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)
{
return glue_ecb_req_128bit(&camellia_dec, 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)
{
return glue_cbc_encrypt_req_128bit(camellia_enc_blk, 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)
{
return glue_cbc_decrypt_req_128bit(&camellia_dec_cbc, 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[] = {

75
arch/x86/crypto/camellia_glue.c
View File

@ -15,7 +15,8 @@
#include <linux/types.h>
#include <crypto/algapi.h>
#include <asm/crypto/camellia.h>
#include <asm/crypto/glue_helper.h>
#include "ecb_cbc_helpers.h"
/* regular block cipher functions */
asmlinkage void __camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src,
@ -1262,75 +1263,47 @@ static int camellia_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key,
return camellia_setkey(&tfm->base, key, key_len);
}
void camellia_decrypt_cbc_2way(const void *ctx, u8 *d, const u8 *s)
void camellia_decrypt_cbc_2way(const void *ctx, u8 *dst, const u8 *src)
{
u128 *dst = (u128 *)d;
const u128 *src = (const u128 *)s;
u128 iv = *src;
u8 buf[CAMELLIA_BLOCK_SIZE];
const u8 *iv = src;
camellia_dec_blk_2way(ctx, (u8 *)dst, (u8 *)src);
u128_xor(&dst[1], &dst[1], &iv);
if (dst == src)
iv = memcpy(buf, iv, sizeof(buf));
camellia_dec_blk_2way(ctx, dst, src);
crypto_xor(dst + CAMELLIA_BLOCK_SIZE, iv, CAMELLIA_BLOCK_SIZE);
}
EXPORT_SYMBOL_GPL(camellia_decrypt_cbc_2way);
static const struct common_glue_ctx camellia_enc = {
.num_funcs = 2,
.fpu_blocks_limit = -1,
.funcs = { {
.num_blocks = 2,
.fn_u = { .ecb = camellia_enc_blk_2way }
}, {
.num_blocks = 1,
.fn_u = { .ecb = camellia_enc_blk }
} }
};
static const struct common_glue_ctx camellia_dec = {
.num_funcs = 2,
.fpu_blocks_limit = -1,
.funcs = { {
.num_blocks = 2,
.fn_u = { .ecb = camellia_dec_blk_2way }
}, {
.num_blocks = 1,
.fn_u = { .ecb = camellia_dec_blk }
} }
};
static const struct common_glue_ctx camellia_dec_cbc = {
.num_funcs = 2,
.fpu_blocks_limit = -1,
.funcs = { {
.num_blocks = 2,
.fn_u = { .cbc = camellia_decrypt_cbc_2way }
}, {
.num_blocks = 1,
.fn_u = { .cbc = camellia_dec_blk }
} }
};
static int ecb_encrypt(struct skcipher_request *req)
{
return glue_ecb_req_128bit(&camellia_enc, req);
ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
ECB_BLOCK(2, camellia_enc_blk_2way);
ECB_BLOCK(1, camellia_enc_blk);
ECB_WALK_END();
}
static int ecb_decrypt(struct skcipher_request *req)
{
return glue_ecb_req_128bit(&camellia_dec, req);
ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
ECB_BLOCK(2, camellia_dec_blk_2way);
ECB_BLOCK(1, camellia_dec_blk);
ECB_WALK_END();
}
static int cbc_encrypt(struct skcipher_request *req)
{
return glue_cbc_encrypt_req_128bit(camellia_enc_blk, 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)
{
return glue_cbc_decrypt_req_128bit(&camellia_dec_cbc, req);
CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
CBC_DEC_BLOCK(2, camellia_decrypt_cbc_2way);
CBC_DEC_BLOCK(1, camellia_dec_blk);
CBC_WALK_END();
}
static struct crypto_alg camellia_cipher_alg = {

2
crypto/Kconfig
View File

@ -1286,7 +1286,6 @@ config CRYPTO_CAMELLIA_X86_64
depends on X86 && 64BIT
depends on CRYPTO
select CRYPTO_SKCIPHER
select CRYPTO_GLUE_HELPER_X86
imply CRYPTO_CTR
help
Camellia cipher algorithm module (x86_64).
@ -1305,7 +1304,6 @@ config CRYPTO_CAMELLIA_AESNI_AVX_X86_64
depends on CRYPTO
select CRYPTO_SKCIPHER
select CRYPTO_CAMELLIA_X86_64
select CRYPTO_GLUE_HELPER_X86
select CRYPTO_SIMD
imply CRYPTO_XTS
help