Release 4.18 arch/x86/crypto/camellia_aesni_avx_glue.c
/*
* Glue Code for x86_64/AVX/AES-NI assembler optimized version of Camellia
*
* Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
*/
#include <asm/crypto/camellia.h>
#include <asm/crypto/glue_helper.h>
#include <crypto/algapi.h>
#include <crypto/internal/simd.h>
#include <crypto/xts.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/types.h>
#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
/* 16-way parallel cipher functions (avx/aes-ni) */
asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
const u8 *src);
EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way);
asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
const u8 *src);
EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way);
asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
const u8 *src);
EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way);
asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
const u8 *src, le128 *iv);
EXPORT_SYMBOL_GPL(camellia_ctr_16way);
asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
const u8 *src, le128 *iv);
EXPORT_SYMBOL_GPL(camellia_xts_enc_16way);
asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
const u8 *src, le128 *iv);
EXPORT_SYMBOL_GPL(camellia_xts_dec_16way);
void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
{
glue_xts_crypt_128bit_one(ctx, dst, src, iv,
GLUE_FUNC_CAST(camellia_enc_blk));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 38 | 100.00% | 1 | 100.00% |
| Total | 38 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL_GPL(camellia_xts_enc);
void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)
{
glue_xts_crypt_128bit_one(ctx, dst, src, iv,
GLUE_FUNC_CAST(camellia_dec_blk));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 38 | 100.00% | 1 | 100.00% |
| Total | 38 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL_GPL(camellia_xts_dec);
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 = GLUE_FUNC_CAST(camellia_ecb_enc_16way) }
}, {
.num_blocks = 2,
.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) }
}, {
.num_blocks = 1,
.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) }
} }
};
static const struct common_glue_ctx camellia_ctr = {
.num_funcs = 3,
.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) }
}, {
.num_blocks = 2,
.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) }
}, {
.num_blocks = 1,
.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) }
} }
};
static const struct common_glue_ctx camellia_enc_xts = {
.num_funcs = 2,
.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) }
}, {
.num_blocks = 1,
.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) }
} }
};
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 = GLUE_FUNC_CAST(camellia_ecb_dec_16way) }
}, {
.num_blocks = 2,
.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) }
}, {
.num_blocks = 1,
.fn_u = { .ecb = GLUE_FUNC_CAST(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 = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) }
}, {
.num_blocks = 2,
.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) }
}, {
.num_blocks = 1,
.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) }
} }
};
static const struct common_glue_ctx camellia_dec_xts = {
.num_funcs = 2,
.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) }
}, {
.num_blocks = 1,
.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) }
} }
};
static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen,
&tfm->base.crt_flags);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Biggers | 20 | 50.00% | 1 | 50.00% |
| Jussi Kivilinna | 20 | 50.00% | 1 | 50.00% |
| Total | 40 | 100.00% | 2 | 100.00% |
static int ecb_encrypt(struct skcipher_request *req)
{
return glue_ecb_req_128bit(&camellia_enc, req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 14 | 70.00% | 1 | 50.00% |
| Eric Biggers | 6 | 30.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
static int ecb_decrypt(struct skcipher_request *req)
{
return glue_ecb_req_128bit(&camellia_dec, req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 13 | 65.00% | 1 | 50.00% |
| Eric Biggers | 7 | 35.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
static int cbc_encrypt(struct skcipher_request *req)
{
return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(camellia_enc_blk),
req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 13 | 59.09% | 1 | 50.00% |
| Eric Biggers | 9 | 40.91% | 1 | 50.00% |
| Total | 22 | 100.00% | 2 | 100.00% |
static int cbc_decrypt(struct skcipher_request *req)
{
return glue_cbc_decrypt_req_128bit(&camellia_dec_cbc, req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 14 | 70.00% | 1 | 50.00% |
| Eric Biggers | 6 | 30.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
static int ctr_crypt(struct skcipher_request *req)
{
return glue_ctr_req_128bit(&camellia_ctr, req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 13 | 65.00% | 1 | 50.00% |
| Eric Biggers | 7 | 35.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
u32 *flags = &tfm->base.crt_flags;
int err;
err = xts_verify_key(tfm, key, keylen);
if (err)
return err;
/* first half of xts-key is for crypt */
err = __camellia_setkey(&ctx->crypt_ctx, key, keylen / 2, flags);
if (err)
return err;
/* second half of xts-key is for tweak */
return __camellia_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2,
flags);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Biggers | 109 | 100.00% | 2 | 100.00% |
| Total | 109 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL_GPL(xts_camellia_setkey);
static int xts_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
return glue_xts_req_128bit(&camellia_enc_xts, req,
XTS_TWEAK_CAST(camellia_enc_blk),
&ctx->tweak_ctx, &ctx->crypt_ctx);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Biggers | 31 | 56.36% | 2 | 66.67% |
| Jussi Kivilinna | 24 | 43.64% | 1 | 33.33% |
| Total | 55 | 100.00% | 3 | 100.00% |
static int xts_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
return glue_xts_req_128bit(&camellia_dec_xts, req,
XTS_TWEAK_CAST(camellia_enc_blk),
&ctx->tweak_ctx, &ctx->crypt_ctx);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 36 | 65.45% | 2 | 50.00% |
| Eric Biggers | 19 | 34.55% | 2 | 50.00% |
| Total | 55 | 100.00% | 4 | 100.00% |
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,
}, {
.base.cra_name = "__ctr(camellia)",
.base.cra_driver_name = "__ctr-camellia-aesni",
.base.cra_priority = 400,
.base.cra_flags = CRYPTO_ALG_INTERNAL,
.base.cra_blocksize = 1,
.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,
.chunksize = CAMELLIA_BLOCK_SIZE,
.setkey = camellia_setkey,
.encrypt = ctr_crypt,
.decrypt = ctr_crypt,
}, {
.base.cra_name = "__xts(camellia)",
.base.cra_driver_name = "__xts-camellia-aesni",
.base.cra_priority = 400,
.base.cra_flags = CRYPTO_ALG_INTERNAL,
.base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct camellia_xts_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = 2 * CAMELLIA_MIN_KEY_SIZE,
.max_keysize = 2 * CAMELLIA_MAX_KEY_SIZE,
.ivsize = CAMELLIA_BLOCK_SIZE,
.setkey = xts_camellia_setkey,
.encrypt = xts_encrypt,
.decrypt = xts_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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 34 | 40.48% | 1 | 12.50% |
| Ben Hutchings | 19 | 22.62% | 1 | 12.50% |
| Borislav Petkov | 12 | 14.29% | 3 | 37.50% |
| Ingo Molnar | 12 | 14.29% | 1 | 12.50% |
| Eric Biggers | 5 | 5.95% | 1 | 12.50% |
| Dave Hansen | 2 | 2.38% | 1 | 12.50% |
| Total | 84 | 100.00% | 8 | 100.00% |
static void __exit camellia_aesni_fini(void)
{
simd_unregister_skciphers(camellia_algs, ARRAY_SIZE(camellia_algs),
camellia_simd_algs);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 16 | 76.19% | 1 | 50.00% |
| Eric Biggers | 5 | 23.81% | 1 | 50.00% |
| Total | 21 | 100.00% | 2 | 100.00% |
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");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jussi Kivilinna | 1215 | 76.03% | 3 | 20.00% |
| Eric Biggers | 330 | 20.65% | 3 | 20.00% |
| Ben Hutchings | 19 | 1.19% | 1 | 6.67% |
| Borislav Petkov | 12 | 0.75% | 3 | 20.00% |
| Ingo Molnar | 12 | 0.75% | 1 | 6.67% |
| Stephan Mueller | 4 | 0.25% | 1 | 6.67% |
| Ard Biesheuvel | 2 | 0.13% | 1 | 6.67% |
| Kees Cook | 2 | 0.13% | 1 | 6.67% |
| Dave Hansen | 2 | 0.13% | 1 | 6.67% |
| Total | 1598 | 100.00% | 15 | 100.00% |
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