mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
4d2fa8b44b
Pull crypto updates from Herbert Xu: "Here is the crypto update for 5.3: API: - Test shash interface directly in testmgr - cra_driver_name is now mandatory Algorithms: - Replace arc4 crypto_cipher with library helper - Implement 5 way interleave for ECB, CBC and CTR on arm64 - Add xxhash - Add continuous self-test on noise source to drbg - Update jitter RNG Drivers: - Add support for SHA204A random number generator - Add support for 7211 in iproc-rng200 - Fix fuzz test failures in inside-secure - Fix fuzz test failures in talitos - Fix fuzz test failures in qat" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (143 commits) crypto: stm32/hash - remove interruptible condition for dma crypto: stm32/hash - Fix hmac issue more than 256 bytes crypto: stm32/crc32 - rename driver file crypto: amcc - remove memset after dma_alloc_coherent crypto: ccp - Switch to SPDX license identifiers crypto: ccp - Validate the the error value used to index error messages crypto: doc - Fix formatting of new crypto engine content crypto: doc - Add parameter documentation crypto: arm64/aes-ce - implement 5 way interleave for ECB, CBC and CTR crypto: arm64/aes-ce - add 5 way interleave routines crypto: talitos - drop icv_ool crypto: talitos - fix hash on SEC1. crypto: talitos - move struct talitos_edesc into talitos.h lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE crypto/NX: Set receive window credits to max number of CRBs in RxFIFO crypto: asymmetric_keys - select CRYPTO_HASH where needed crypto: serpent - mark __serpent_setkey_sbox noinline crypto: testmgr - dynamically allocate crypto_shash crypto: testmgr - dynamically allocate testvec_config crypto: talitos - eliminate unneeded 'done' functions at build time ...
134 lines
3.4 KiB
C
134 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/**
|
|
* AES CBC routines supporting VMX instructions on the Power 8
|
|
*
|
|
* Copyright (C) 2015 International Business Machines Inc.
|
|
*
|
|
* Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com>
|
|
*/
|
|
|
|
#include <asm/simd.h>
|
|
#include <asm/switch_to.h>
|
|
#include <crypto/aes.h>
|
|
#include <crypto/internal/simd.h>
|
|
#include <crypto/internal/skcipher.h>
|
|
|
|
#include "aesp8-ppc.h"
|
|
|
|
struct p8_aes_cbc_ctx {
|
|
struct crypto_skcipher *fallback;
|
|
struct aes_key enc_key;
|
|
struct aes_key dec_key;
|
|
};
|
|
|
|
static int p8_aes_cbc_init(struct crypto_skcipher *tfm)
|
|
{
|
|
struct p8_aes_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
|
|
struct crypto_skcipher *fallback;
|
|
|
|
fallback = crypto_alloc_skcipher("cbc(aes)", 0,
|
|
CRYPTO_ALG_NEED_FALLBACK |
|
|
CRYPTO_ALG_ASYNC);
|
|
if (IS_ERR(fallback)) {
|
|
pr_err("Failed to allocate cbc(aes) fallback: %ld\n",
|
|
PTR_ERR(fallback));
|
|
return PTR_ERR(fallback);
|
|
}
|
|
|
|
crypto_skcipher_set_reqsize(tfm, sizeof(struct skcipher_request) +
|
|
crypto_skcipher_reqsize(fallback));
|
|
ctx->fallback = fallback;
|
|
return 0;
|
|
}
|
|
|
|
static void p8_aes_cbc_exit(struct crypto_skcipher *tfm)
|
|
{
|
|
struct p8_aes_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
|
|
|
|
crypto_free_skcipher(ctx->fallback);
|
|
}
|
|
|
|
static int p8_aes_cbc_setkey(struct crypto_skcipher *tfm, const u8 *key,
|
|
unsigned int keylen)
|
|
{
|
|
struct p8_aes_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
|
|
int ret;
|
|
|
|
preempt_disable();
|
|
pagefault_disable();
|
|
enable_kernel_vsx();
|
|
ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
|
|
ret |= aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key);
|
|
disable_kernel_vsx();
|
|
pagefault_enable();
|
|
preempt_enable();
|
|
|
|
ret |= crypto_skcipher_setkey(ctx->fallback, key, keylen);
|
|
|
|
return ret ? -EINVAL : 0;
|
|
}
|
|
|
|
static int p8_aes_cbc_crypt(struct skcipher_request *req, int enc)
|
|
{
|
|
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
|
|
const struct p8_aes_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
|
|
struct skcipher_walk walk;
|
|
unsigned int nbytes;
|
|
int ret;
|
|
|
|
if (!crypto_simd_usable()) {
|
|
struct skcipher_request *subreq = skcipher_request_ctx(req);
|
|
|
|
*subreq = *req;
|
|
skcipher_request_set_tfm(subreq, ctx->fallback);
|
|
return enc ? crypto_skcipher_encrypt(subreq) :
|
|
crypto_skcipher_decrypt(subreq);
|
|
}
|
|
|
|
ret = skcipher_walk_virt(&walk, req, false);
|
|
while ((nbytes = walk.nbytes) != 0) {
|
|
preempt_disable();
|
|
pagefault_disable();
|
|
enable_kernel_vsx();
|
|
aes_p8_cbc_encrypt(walk.src.virt.addr,
|
|
walk.dst.virt.addr,
|
|
round_down(nbytes, AES_BLOCK_SIZE),
|
|
enc ? &ctx->enc_key : &ctx->dec_key,
|
|
walk.iv, enc);
|
|
disable_kernel_vsx();
|
|
pagefault_enable();
|
|
preempt_enable();
|
|
|
|
ret = skcipher_walk_done(&walk, nbytes % AES_BLOCK_SIZE);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int p8_aes_cbc_encrypt(struct skcipher_request *req)
|
|
{
|
|
return p8_aes_cbc_crypt(req, 1);
|
|
}
|
|
|
|
static int p8_aes_cbc_decrypt(struct skcipher_request *req)
|
|
{
|
|
return p8_aes_cbc_crypt(req, 0);
|
|
}
|
|
|
|
struct skcipher_alg p8_aes_cbc_alg = {
|
|
.base.cra_name = "cbc(aes)",
|
|
.base.cra_driver_name = "p8_aes_cbc",
|
|
.base.cra_module = THIS_MODULE,
|
|
.base.cra_priority = 2000,
|
|
.base.cra_flags = CRYPTO_ALG_NEED_FALLBACK,
|
|
.base.cra_blocksize = AES_BLOCK_SIZE,
|
|
.base.cra_ctxsize = sizeof(struct p8_aes_cbc_ctx),
|
|
.setkey = p8_aes_cbc_setkey,
|
|
.encrypt = p8_aes_cbc_encrypt,
|
|
.decrypt = p8_aes_cbc_decrypt,
|
|
.init = p8_aes_cbc_init,
|
|
.exit = p8_aes_cbc_exit,
|
|
.min_keysize = AES_MIN_KEY_SIZE,
|
|
.max_keysize = AES_MAX_KEY_SIZE,
|
|
.ivsize = AES_BLOCK_SIZE,
|
|
};
|