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Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Browse source 
Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 4.10:

  API:
   - add skcipher walk interface
   - add asynchronous compression (acomp) interface
   - fix algif_aed AIO handling of zero buffer

  Algorithms:
   - fix unaligned access in poly1305
   - fix DRBG output to large buffers

  Drivers:
   - add support for iMX6UL to caam
   - fix givenc descriptors (used by IPsec) in caam
   - accelerated SHA256/SHA512 for ARM64 from OpenSSL
   - add SSE CRCT10DIF and CRC32 to ARM/ARM64
   - add AEAD support to Chelsio chcr
   - add Armada 8K support to omap-rng"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (148 commits)
  crypto: testmgr - fix overlap in chunked tests again
  crypto: arm/crc32 - accelerated support based on x86 SSE implementation
  crypto: arm64/crc32 - accelerated support based on x86 SSE implementation
  crypto: arm/crct10dif - port x86 SSE implementation to ARM
  crypto: arm64/crct10dif - port x86 SSE implementation to arm64
  crypto: testmgr - add/enhance test cases for CRC-T10DIF
  crypto: testmgr - avoid overlap in chunked tests
  crypto: chcr - checking for IS_ERR() instead of NULL
  crypto: caam - check caam_emi_slow instead of re-lookup platform
  crypto: algif_aead - fix AIO handling of zero buffer
  crypto: aes-ce - Make aes_simd_algs static
  crypto: algif_skcipher - set error code when kcalloc fails
  crypto: caam - make aamalg_desc a proper module
  crypto: caam - pass key buffers with typesafe pointers
  crypto: arm64/aes-ce-ccm - Fix AEAD decryption length
  MAINTAINERS: add crypto headers to crypto entry
  crypt: doc - remove misleading mention of async API
  crypto: doc - fix header file name
  crypto: api - fix comment typo
  crypto: skcipher - Add separate walker for AEAD decryption
  ..
This commit is contained in:
Linus Torvalds 2016-12-14 13:31:29 -08:00
commit 0f1d6dfe03
151 changed files with 15768 additions and 4519 deletions
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5
Documentation/crypto/api-intro.txt
View file

@ -44,12 +44,9 @@ one block while the former can operate on an arbitrary amount of data,
subject to block size requirements (i.e., non-stream ciphers can only
process multiples of blocks).
Support for hardware crypto devices via an asynchronous interface is
under development.
Here's an example of how to use the API:
#include <crypto/ahash.h>
#include <crypto/hash.h>
#include <linux/err.h>
#include <linux/scatterlist.h>

20
Documentation/devicetree/bindings/crypto/fsl-sec4.txt
View file

@ -123,6 +123,9 @@ PROPERTIES
EXAMPLE
iMX6QDL/SX requires four clocks
crypto@300000 {
compatible = "fsl,sec-v4.0";
fsl,sec-era = <2>;
@ -139,6 +142,23 @@ EXAMPLE
clock-names = "mem", "aclk", "ipg", "emi_slow";
};
iMX6UL does only require three clocks
crypto: caam@2140000 {
compatible = "fsl,sec-v4.0";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x2140000 0x3c000>;
ranges = <0 0x2140000 0x3c000>;
interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_CAAM_MEM>,
<&clks IMX6UL_CLK_CAAM_ACLK>,
<&clks IMX6UL_CLK_CAAM_IPG>;
clock-names = "mem", "aclk", "ipg";
};
=====================================================================
Job Ring (JR) Node

14
Documentation/devicetree/bindings/rng/omap_rng.txt
View file

@ -1,4 +1,4 @@
OMAP SoC HWRNG Module
OMAP SoC and Inside-Secure HWRNG Module
Required properties:
@ -6,11 +6,13 @@ Required properties:
RNG versions:
- "ti,omap2-rng" for OMAP2.
- "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX.
- "inside-secure,safexcel-eip76" for SoCs with EIP76 IP block
Note that these two versions are incompatible.
- ti,hwmods: Name of the hwmod associated with the RNG module
- reg : Offset and length of the register set for the module
- interrupts : the interrupt number for the RNG module.
Only used for "ti,omap4-rng".
Used for "ti,omap4-rng" and "inside-secure,safexcel-eip76"
- clocks: the trng clock source
Example:
/* AM335x */
@ -20,3 +22,11 @@ rng: rng@48310000 {
reg = <0x48310000 0x2000>;
interrupts = <111>;
};
/* SafeXcel IP-76 */
trng: rng@f2760000 {
compatible = "inside-secure,safexcel-eip76";
reg = <0xf2760000 0x7d>;
interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpm_syscon0 1 25>;
};

1
Documentation/devicetree/bindings/vendor-prefixes.txt
View file

@ -137,6 +137,7 @@ infineon Infineon Technologies
inforce Inforce Computing
ingenic Ingenic Semiconductor
innolux Innolux Corporation
inside-secure INSIDE Secure
intel Intel Corporation
intercontrol Inter Control Group
invensense InvenSense Inc.

9
MAINTAINERS
View file

@ -3470,6 +3470,7 @@ F: arch/*/crypto/
F: crypto/
F: drivers/crypto/
F: include/crypto/
F: include/linux/crypto*
CRYPTOGRAPHIC RANDOM NUMBER GENERATOR
M: Neil Horman <nhorman@tuxdriver.com>
@ -5086,6 +5087,14 @@ F: include/linux/fb.h
F: include/uapi/video/
F: include/uapi/linux/fb.h
FREESCALE CAAM (Cryptographic Acceleration and Assurance Module) DRIVER
M: Horia Geantă <horia.geanta@nxp.com>
M: Dan Douglass <dan.douglass@nxp.com>
L: linux-crypto@vger.kernel.org
S: Maintained
F: drivers/crypto/caam/
F: Documentation/devicetree/bindings/crypto/fsl-sec4.txt
FREESCALE DIU FRAMEBUFFER DRIVER
M: Timur Tabi <timur@tabi.org>
L: linux-fbdev@vger.kernel.org

18
arch/arm/crypto/Kconfig
View file

@ -88,9 +88,9 @@ config CRYPTO_AES_ARM
config CRYPTO_AES_ARM_BS
tristate "Bit sliced AES using NEON instructions"
depends on KERNEL_MODE_NEON
select CRYPTO_ALGAPI
select CRYPTO_AES_ARM
select CRYPTO_ABLK_HELPER
select CRYPTO_BLKCIPHER
select CRYPTO_SIMD
help
Use a faster and more secure NEON based implementation of AES in CBC,
CTR and XTS modes
@ -104,8 +104,8 @@ config CRYPTO_AES_ARM_BS
config CRYPTO_AES_ARM_CE
tristate "Accelerated AES using ARMv8 Crypto Extensions"
depends on KERNEL_MODE_NEON
select CRYPTO_ALGAPI
select CRYPTO_ABLK_HELPER
select CRYPTO_BLKCIPHER
select CRYPTO_SIMD
help
Use an implementation of AES in CBC, CTR and XTS modes that uses
ARMv8 Crypto Extensions
@ -120,4 +120,14 @@ config CRYPTO_GHASH_ARM_CE
that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
that is part of the ARMv8 Crypto Extensions
config CRYPTO_CRCT10DIF_ARM_CE
tristate "CRCT10DIF digest algorithm using PMULL instructions"
depends on KERNEL_MODE_NEON && CRC_T10DIF
select CRYPTO_HASH
config CRYPTO_CRC32_ARM_CE
tristate "CRC32(C) digest algorithm using CRC and/or PMULL instructions"
depends on KERNEL_MODE_NEON && CRC32
select CRYPTO_HASH
endif

4
arch/arm/crypto/Makefile
View file

@ -13,6 +13,8 @@ ce-obj-$(CONFIG_CRYPTO_AES_ARM_CE) += aes-arm-ce.o
ce-obj-$(CONFIG_CRYPTO_SHA1_ARM_CE) += sha1-arm-ce.o
ce-obj-$(CONFIG_CRYPTO_SHA2_ARM_CE) += sha2-arm-ce.o
ce-obj-$(CONFIG_CRYPTO_GHASH_ARM_CE) += ghash-arm-ce.o
ce-obj-$(CONFIG_CRYPTO_CRCT10DIF_ARM_CE) += crct10dif-arm-ce.o
ce-obj-$(CONFIG_CRYPTO_CRC32_ARM_CE) += crc32-arm-ce.o
ifneq ($(ce-obj-y)$(ce-obj-m),)
ifeq ($(call as-instr,.fpu crypto-neon-fp-armv8,y,n),y)
@ -36,6 +38,8 @@ sha1-arm-ce-y := sha1-ce-core.o sha1-ce-glue.o
sha2-arm-ce-y := sha2-ce-core.o sha2-ce-glue.o
aes-arm-ce-y := aes-ce-core.o aes-ce-glue.o
ghash-arm-ce-y := ghash-ce-core.o ghash-ce-glue.o
crct10dif-arm-ce-y := crct10dif-ce-core.o crct10dif-ce-glue.o
crc32-arm-ce-y:= crc32-ce-core.o crc32-ce-glue.o
quiet_cmd_perl = PERL $@
cmd_perl = $(PERL) $(<) > $(@)

395
arch/arm/crypto/aes-ce-glue.c
View file

@ -12,8 +12,8 @@
#include <asm/neon.h>
#include <asm/hwcap.h>
#include <crypto/aes.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
#include <linux/module.h>
#include <crypto/xts.h>
@ -88,8 +88,13 @@ static int ce_aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
u32 *rki = ctx->key_enc + (i * kwords);
u32 *rko = rki + kwords;
#ifndef CONFIG_CPU_BIG_ENDIAN
rko[0] = ror32(ce_aes_sub(rki[kwords - 1]), 8);
rko[0] = rko[0] ^ rki[0] ^ rcon[i];
#else
rko[0] = rol32(ce_aes_sub(rki[kwords - 1]), 8);
rko[0] = rko[0] ^ rki[0] ^ (rcon[i] << 24);
#endif
rko[1] = rko[0] ^ rki[1];
rko[2] = rko[1] ^ rki[2];
rko[3] = rko[2] ^ rki[3];
@ -128,17 +133,17 @@ static int ce_aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
return 0;
}
static int ce_aes_setkey(struct crypto_tfm *tfm, const u8 *in_key,
static int ce_aes_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_aes_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
int ret;
ret = ce_aes_expandkey(ctx, in_key, key_len);
if (!ret)
return 0;
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
@ -147,13 +152,13 @@ struct crypto_aes_xts_ctx {
struct crypto_aes_ctx __aligned(8) key2;
};
static int xts_set_key(struct crypto_tfm *tfm, const u8 *in_key,
static int xts_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_aes_xts_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
int ret;
ret = xts_check_key(tfm, in_key, key_len);
ret = xts_verify_key(tfm, in_key, key_len);
if (ret)
return ret;
@ -164,130 +169,113 @@ static int xts_set_key(struct crypto_tfm *tfm, const u8 *in_key,
if (!ret)
return 0;
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int ecb_encrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
unsigned int blocks;
int err;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
ce_aes_ecb_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_enc, num_rounds(ctx), blocks);
err = blkcipher_walk_done(desc, &walk,
walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int ecb_decrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
unsigned int blocks;
int err;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
ce_aes_ecb_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_dec, num_rounds(ctx), blocks);
err = blkcipher_walk_done(desc, &walk,
walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int cbc_encrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
unsigned int blocks;
int err;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
ce_aes_cbc_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_enc, num_rounds(ctx), blocks,
walk.iv);
err = blkcipher_walk_done(desc, &walk,
walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int cbc_decrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
unsigned int blocks;
int err;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
ce_aes_cbc_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_dec, num_rounds(ctx), blocks,
walk.iv);
err = blkcipher_walk_done(desc, &walk,
walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int ctr_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int ctr_encrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
int err, blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) {
ce_aes_ctr_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_enc, num_rounds(ctx), blocks,
walk.iv);
nbytes -= blocks * AES_BLOCK_SIZE;
if (nbytes && nbytes == walk.nbytes % AES_BLOCK_SIZE)
break;
err = blkcipher_walk_done(desc, &walk,
walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
if (walk.nbytes % AES_BLOCK_SIZE) {
u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
u8 *tsrc = walk.src.virt.addr + blocks * AES_BLOCK_SIZE;
if (walk.nbytes) {
u8 __aligned(8) tail[AES_BLOCK_SIZE];
unsigned int nbytes = walk.nbytes;
u8 *tdst = walk.dst.virt.addr;
u8 *tsrc = walk.src.virt.addr;
/*
* Minimum alignment is 8 bytes, so if nbytes is <= 8, we need
@ -298,231 +286,172 @@ static int ctr_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
ce_aes_ctr_encrypt(tail, tsrc, (u8 *)ctx->key_enc,
num_rounds(ctx), blocks, walk.iv);
memcpy(tdst, tail, nbytes);
err = blkcipher_walk_done(desc, &walk, 0);
err = skcipher_walk_done(&walk, 0);
}
kernel_neon_end();
return err;
}
static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int xts_encrypt(struct skcipher_request *req)
{
struct crypto_aes_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
int err, first, rounds = num_rounds(&ctx->key1);
struct blkcipher_walk walk;
struct skcipher_walk walk;
unsigned int blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
ce_aes_xts_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key1.key_enc, rounds, blocks,
walk.iv, (u8 *)ctx->key2.key_enc, first);
err = blkcipher_walk_done(desc, &walk,
walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int xts_decrypt(struct skcipher_request *req)
{
struct crypto_aes_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
int err, first, rounds = num_rounds(&ctx->key1);
struct blkcipher_walk walk;
struct skcipher_walk walk;
unsigned int blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
ce_aes_xts_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key1.key_dec, rounds, blocks,
walk.iv, (u8 *)ctx->key2.key_enc, first);
err = blkcipher_walk_done(desc, &walk,
walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static struct crypto_alg aes_algs[] = { {
.cra_name = "__ecb-aes-ce",
.cra_driver_name = "__driver-ecb-aes-ce",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = 0,
.setkey = ce_aes_setkey,
.encrypt = ecb_encrypt,
.decrypt = ecb_decrypt,
static struct skcipher_alg aes_algs[] = { {
.base = {
.cra_name = "__ecb(aes)",
.cra_driver_name = "__ecb-aes-ce",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = ce_aes_setkey,
.encrypt = ecb_encrypt,
.decrypt = ecb_decrypt,
}, {
.cra_name = "__cbc-aes-ce",
.cra_driver_name = "__driver-cbc-aes-ce",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ce_aes_setkey,
.encrypt = cbc_encrypt,
.decrypt = cbc_decrypt,
.base = {
.cra_name = "__cbc(aes)",
.cra_driver_name = "__cbc-aes-ce",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ce_aes_setkey,
.encrypt = cbc_encrypt,
.decrypt = cbc_decrypt,
}, {
.cra_name = "__ctr-aes-ce",
.cra_driver_name = "__driver-ctr-aes-ce",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ce_aes_setkey,
.encrypt = ctr_encrypt,
.decrypt = ctr_encrypt,
.base = {
.cra_name = "__ctr(aes)",
.cra_driver_name = "__ctr-aes-ce",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.chunksize = AES_BLOCK_SIZE,
.setkey = ce_aes_setkey,
.encrypt = ctr_encrypt,
.decrypt = ctr_encrypt,
}, {
.cra_name = "__xts-aes-ce",
.cra_driver_name = "__driver-xts-aes-ce",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_xts_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = xts_set_key,
.encrypt = xts_encrypt,
.decrypt = xts_decrypt,
.base = {
.cra_name = "__xts(aes)",
.cra_driver_name = "__xts-aes-ce",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_xts_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
}, {
.cra_name = "ecb(aes)",
.cra_driver_name = "ecb-aes-ce",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = 0,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
}, {
.cra_name = "cbc(aes)",
.cra_driver_name = "cbc-aes-ce",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
}, {
.cra_name = "ctr(aes)",
.cra_driver_name = "ctr-aes-ce",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
}, {
.cra_name = "xts(aes)",
.cra_driver_name = "xts-aes-ce",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = xts_set_key,
.encrypt = xts_encrypt,
.decrypt = xts_decrypt,
} };
static struct simd_skcipher_alg *aes_simd_algs[ARRAY_SIZE(aes_algs)];
static void aes_exit(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(aes_simd_algs) && aes_simd_algs[i]; i++)
simd_skcipher_free(aes_simd_algs[i]);
crypto_unregister_skciphers(aes_algs, ARRAY_SIZE(aes_algs));
}
static int __init aes_init(void)
{
struct simd_skcipher_alg *simd;
const char *basename;
const char *algname;
const char *drvname;
int err;
int i;
if (!(elf_hwcap2 & HWCAP2_AES))
return -ENODEV;
return crypto_register_algs(aes_algs, ARRAY_SIZE(aes_algs));
}
static void __exit aes_exit(void)
{
crypto_unregister_algs(aes_algs, ARRAY_SIZE(aes_algs));
err = crypto_register_skciphers(aes_algs, ARRAY_SIZE(aes_algs));
if (err)
return err;
for (i = 0; i < ARRAY_SIZE(aes_algs); i++) {
algname = aes_algs[i].base.cra_name + 2;
drvname = aes_algs[i].base.cra_driver_name + 2;
basename = aes_algs[i].base.cra_driver_name;
simd = simd_skcipher_create_compat(algname, drvname, basename);
err = PTR_ERR(simd);
if (IS_ERR(simd))
goto unregister_simds;
aes_simd_algs[i] = simd;
}
return 0;
unregister_simds:
aes_exit();
return err;
}
module_init(aes_init);

384
arch/arm/crypto/aesbs-glue.c
View file

@ -10,8 +10,9 @@
#include <asm/neon.h>
#include <crypto/aes.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/cbc.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
#include <linux/module.h>
#include <crypto/xts.h>
@ -55,14 +56,14 @@ struct aesbs_xts_ctx {
struct AES_KEY twkey;
};
static int aesbs_cbc_set_key(struct crypto_tfm *tfm, const u8 *in_key,
static int aesbs_cbc_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct aesbs_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
struct aesbs_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
int bits = key_len * 8;
if (private_AES_set_encrypt_key(in_key, bits, &ctx->enc)) {
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
ctx->dec.rk = ctx->enc;
@ -71,33 +72,33 @@ static int aesbs_cbc_set_key(struct crypto_tfm *tfm, const u8 *in_key,
return 0;
}
static int aesbs_ctr_set_key(struct crypto_tfm *tfm, const u8 *in_key,
static int aesbs_ctr_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct aesbs_ctr_ctx *ctx = crypto_tfm_ctx(tfm);
struct aesbs_ctr_ctx *ctx = crypto_skcipher_ctx(tfm);
int bits = key_len * 8;
if (private_AES_set_encrypt_key(in_key, bits, &ctx->enc.rk)) {
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
ctx->enc.converted = 0;
return 0;
}
static int aesbs_xts_set_key(struct crypto_tfm *tfm, const u8 *in_key,
static int aesbs_xts_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct aesbs_xts_ctx *ctx = crypto_tfm_ctx(tfm);
struct aesbs_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
int bits = key_len * 4;
int err;
err = xts_check_key(tfm, in_key, key_len);
err = xts_verify_key(tfm, in_key, key_len);
if (err)
return err;
if (private_AES_set_encrypt_key(in_key, bits, &ctx->enc.rk)) {
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
ctx->dec.rk = ctx->enc.rk;
@ -107,88 +108,52 @@ static int aesbs_xts_set_key(struct crypto_tfm *tfm, const u8 *in_key,
return 0;
}
static int aesbs_cbc_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static inline void aesbs_encrypt_one(struct crypto_skcipher *tfm,
const u8 *src, u8 *dst)
{
struct aesbs_cbc_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
int err;
struct aesbs_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
while (walk.nbytes) {
u32 blocks = walk.nbytes / AES_BLOCK_SIZE;
u8 *src = walk.src.virt.addr;
if (walk.dst.virt.addr == walk.src.virt.addr) {
u8 *iv = walk.iv;
do {
crypto_xor(src, iv, AES_BLOCK_SIZE);
AES_encrypt(src, src, &ctx->enc);
iv = src;
src += AES_BLOCK_SIZE;
} while (--blocks);
memcpy(walk.iv, iv, AES_BLOCK_SIZE);
} else {
u8 *dst = walk.dst.virt.addr;
do {
crypto_xor(walk.iv, src, AES_BLOCK_SIZE);
AES_encrypt(walk.iv, dst, &ctx->enc);
memcpy(walk.iv, dst, AES_BLOCK_SIZE);
src += AES_BLOCK_SIZE;
dst += AES_BLOCK_SIZE;
} while (--blocks);
}
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
}
return err;
AES_encrypt(src, dst, &ctx->enc);
}
static int aesbs_cbc_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int aesbs_cbc_encrypt(struct skcipher_request *req)
{
struct aesbs_cbc_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
return crypto_cbc_encrypt_walk(req, aesbs_encrypt_one);
}
static inline void aesbs_decrypt_one(struct crypto_skcipher *tfm,
const u8 *src, u8 *dst)
{
struct aesbs_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
AES_decrypt(src, dst, &ctx->dec.rk);
}
static int aesbs_cbc_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesbs_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
unsigned int nbytes;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE);
while ((walk.nbytes / AES_BLOCK_SIZE) >= 8) {
kernel_neon_begin();
bsaes_cbc_encrypt(walk.src.virt.addr, walk.dst.virt.addr,
walk.nbytes, &ctx->dec, walk.iv);
kernel_neon_end();
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
}
while (walk.nbytes) {
u32 blocks = walk.nbytes / AES_BLOCK_SIZE;
for (err = skcipher_walk_virt(&walk, req, false);
(nbytes = walk.nbytes); err = skcipher_walk_done(&walk, nbytes)) {
u32 blocks = nbytes / AES_BLOCK_SIZE;
u8 *dst = walk.dst.virt.addr;
u8 *src = walk.src.virt.addr;
u8 bk[2][AES_BLOCK_SIZE];
u8 *iv = walk.iv;
do {
if (walk.dst.virt.addr == walk.src.virt.addr)
memcpy(bk[blocks & 1], src, AES_BLOCK_SIZE);
if (blocks >= 8) {
kernel_neon_begin();
bsaes_cbc_encrypt(src, dst, nbytes, &ctx->dec, iv);
kernel_neon_end();
nbytes %= AES_BLOCK_SIZE;
continue;
}
AES_decrypt(src, dst, &ctx->dec.rk);
crypto_xor(dst, iv, AES_BLOCK_SIZE);
if (walk.dst.virt.addr == walk.src.virt.addr)
iv = bk[blocks & 1];
else
iv = src;
dst += AES_BLOCK_SIZE;
src += AES_BLOCK_SIZE;
} while (--blocks);
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
nbytes = crypto_cbc_decrypt_blocks(&walk, tfm,
aesbs_decrypt_one);
}
return err;
}
@ -206,17 +171,15 @@ static void inc_be128_ctr(__be32 ctr[], u32 addend)
}
}
static int aesbs_ctr_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int aesbs_ctr_encrypt(struct skcipher_request *req)
{
struct aesbs_ctr_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesbs_ctr_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
u32 blocks;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE);
err = skcipher_walk_virt(&walk, req, false);
while ((blocks = walk.nbytes / AES_BLOCK_SIZE)) {
u32 tail = walk.nbytes % AES_BLOCK_SIZE;
@ -235,11 +198,7 @@ static int aesbs_ctr_encrypt(struct blkcipher_desc *desc,
kernel_neon_end();
inc_be128_ctr(ctr, blocks);
nbytes -= blocks * AES_BLOCK_SIZE;
if (nbytes && nbytes == tail && nbytes <= AES_BLOCK_SIZE)
break;
err = blkcipher_walk_done(desc, &walk, tail);
err = skcipher_walk_done(&walk, tail);
}
if (walk.nbytes) {
u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
@ -248,23 +207,21 @@ static int aesbs_ctr_encrypt(struct blkcipher_desc *desc,
AES_encrypt(walk.iv, ks, &ctx->enc.rk);
if (tdst != tsrc)
memcpy(tdst, tsrc, nbytes);
crypto_xor(tdst, ks, nbytes);
err = blkcipher_walk_done(desc, &walk, 0);
memcpy(tdst, tsrc, walk.nbytes);
crypto_xor(tdst, ks, walk.nbytes);
err = skcipher_walk_done(&walk, 0);
}
return err;
}
static int aesbs_xts_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int aesbs_xts_encrypt(struct skcipher_request *req)
{
struct aesbs_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesbs_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE);
err = skcipher_walk_virt(&walk, req, false);
/* generate the initial tweak */
AES_encrypt(walk.iv, walk.iv, &ctx->twkey);
@ -274,21 +231,19 @@ static int aesbs_xts_encrypt(struct blkcipher_desc *desc,
bsaes_xts_encrypt(walk.src.virt.addr, walk.dst.virt.addr,
walk.nbytes, &ctx->enc, walk.iv);
kernel_neon_end();
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
return err;
}
static int aesbs_xts_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int aesbs_xts_decrypt(struct skcipher_request *req)
{
struct aesbs_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesbs_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_walk walk;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE);
err = skcipher_walk_virt(&walk, req, false);
/* generate the initial tweak */
AES_encrypt(walk.iv, walk.iv, &ctx->twkey);
@ -298,141 +253,110 @@ static int aesbs_xts_decrypt(struct blkcipher_desc *desc,
bsaes_xts_decrypt(walk.src.virt.addr, walk.dst.virt.addr,
walk.nbytes, &ctx->dec, walk.iv);
kernel_neon_end();
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
return err;
}
static struct crypto_alg aesbs_algs[] = { {
.cra_name = "__cbc-aes-neonbs",
.cra_driver_name = "__driver-cbc-aes-neonbs",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aesbs_cbc_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = aesbs_cbc_set_key,
.encrypt = aesbs_cbc_encrypt,
.decrypt = aesbs_cbc_decrypt,
static struct skcipher_alg aesbs_algs[] = { {
.base = {
.cra_name = "__cbc(aes)",
.cra_driver_name = "__cbc-aes-neonbs",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aesbs_cbc_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = aesbs_cbc_set_key,
.encrypt = aesbs_cbc_encrypt,
.decrypt = aesbs_cbc_decrypt,
}, {
.cra_name = "__ctr-aes-neonbs",
.cra_driver_name = "__driver-ctr-aes-neonbs",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct aesbs_ctr_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = aesbs_ctr_set_key,
.encrypt = aesbs_ctr_encrypt,
.decrypt = aesbs_ctr_encrypt,
.base = {
.cra_name = "__ctr(aes)",
.cra_driver_name = "__ctr-aes-neonbs",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct aesbs_ctr_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.chunksize = AES_BLOCK_SIZE,
.setkey = aesbs_ctr_set_key,
.encrypt = aesbs_ctr_encrypt,
.decrypt = aesbs_ctr_encrypt,
}, {
.cra_name = "__xts-aes-neonbs",
.cra_driver_name = "__driver-xts-aes-neonbs",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aesbs_xts_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = aesbs_xts_set_key,
.encrypt = aesbs_xts_encrypt,
.decrypt = aesbs_xts_decrypt,
.base = {
.cra_name = "__xts(aes)",
.cra_driver_name = "__xts-aes-neonbs",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aesbs_xts_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
}, {
.cra_name = "cbc(aes)",
.cra_driver_name = "cbc-aes-neonbs",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = __ablk_encrypt,
.decrypt = ablk_decrypt,
}
}, {
.cra_name = "ctr(aes)",
.cra_driver_name = "ctr-aes-neonbs",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
}, {
.cra_name = "xts(aes)",
.cra_driver_name = "xts-aes-neonbs",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = aesbs_xts_set_key,
.encrypt = aesbs_xts_encrypt,
.decrypt = aesbs_xts_decrypt,
} };
struct simd_skcipher_alg *aesbs_simd_algs[ARRAY_SIZE(aesbs_algs)];
static void aesbs_mod_exit(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(aesbs_simd_algs) && aesbs_simd_algs[i]; i++)
simd_skcipher_free(aesbs_simd_algs[i]);
crypto_unregister_skciphers(aesbs_algs, ARRAY_SIZE(aesbs_algs));
}
static int __init aesbs_mod_init(void)
{
struct simd_skcipher_alg *simd;
const char *basename;
const char *algname;
const char *drvname;
int err;
int i;
if (!cpu_has_neon())
return -ENODEV;
return crypto_register_algs(aesbs_algs, ARRAY_SIZE(aesbs_algs));
}
err = crypto_register_skciphers(aesbs_algs, ARRAY_SIZE(aesbs_algs));
if (err)
return err;
static void __exit aesbs_mod_exit(void)
{
crypto_unregister_algs(aesbs_algs, ARRAY_SIZE(aesbs_algs));
for (i = 0; i < ARRAY_SIZE(aesbs_algs); i++) {
algname = aesbs_algs[i].base.cra_name + 2;
drvname = aesbs_algs[i].base.cra_driver_name + 2;
basename = aesbs_algs[i].base.cra_driver_name;
simd = simd_skcipher_create_compat(algname, drvname, basename);
err = PTR_ERR(simd);
if (IS_ERR(simd))
goto unregister_simds;
aesbs_simd_algs[i] = simd;
}
return 0;
unregister_simds:
aesbs_mod_exit();
return err;
}
module_init(aesbs_mod_init);

306
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/*
* Accelerated CRC32(C) using ARM CRC, NEON and Crypto Extensions instructions
*
* Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see http://www.gnu.org/licenses
*
* Please visit http://www.xyratex.com/contact if you need additional
* information or have any questions.
*
* GPL HEADER END
*/
/*
* Copyright 2012 Xyratex Technology Limited
*
* Using hardware provided PCLMULQDQ instruction to accelerate the CRC32
* calculation.
* CRC32 polynomial:0x04c11db7(BE)/0xEDB88320(LE)
* PCLMULQDQ is a new instruction in Intel SSE4.2, the reference can be found
* at:
* http://www.intel.com/products/processor/manuals/
* Intel(R) 64 and IA-32 Architectures Software Developer's Manual
* Volume 2B: Instruction Set Reference, N-Z
*
* Authors: Gregory Prestas <Gregory_Prestas@us.xyratex.com>
* Alexander Boyko <Alexander_Boyko@xyratex.com>
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
.text
.align 6
.arch armv8-a
.arch_extension crc
.fpu crypto-neon-fp-armv8
.Lcrc32_constants:
/*
* [x4*128+32 mod P(x) << 32)]' << 1 = 0x154442bd4
* #define CONSTANT_R1 0x154442bd4LL
*
* [(x4*128-32 mod P(x) << 32)]' << 1 = 0x1c6e41596
* #define CONSTANT_R2 0x1c6e41596LL
*/
.quad 0x0000000154442bd4
.quad 0x00000001c6e41596
/*
* [(x128+32 mod P(x) << 32)]' << 1 = 0x1751997d0
* #define CONSTANT_R3 0x1751997d0LL
*
* [(x128-32 mod P(x) << 32)]' << 1 = 0x0ccaa009e
* #define CONSTANT_R4 0x0ccaa009eLL
*/
.quad 0x00000001751997d0
.quad 0x00000000ccaa009e
/*
* [(x64 mod P(x) << 32)]' << 1 = 0x163cd6124
* #define CONSTANT_R5 0x163cd6124LL
*/
.quad 0x0000000163cd6124
.quad 0x00000000FFFFFFFF
/*
* #define CRCPOLY_TRUE_LE_FULL 0x1DB710641LL
*
* Barrett Reduction constant (u64`) = u` = (x**64 / P(x))`
* = 0x1F7011641LL
* #define CONSTANT_RU 0x1F7011641LL
*/
.quad 0x00000001DB710641
.quad 0x00000001F7011641
.Lcrc32c_constants:
.quad 0x00000000740eef02
.quad 0x000000009e4addf8
.quad 0x00000000f20c0dfe
.quad 0x000000014cd00bd6
.quad 0x00000000dd45aab8
.quad 0x00000000FFFFFFFF
.quad 0x0000000105ec76f0
.quad 0x00000000dea713f1
dCONSTANTl .req d0
dCONSTANTh .req d1
qCONSTANT .req q0
BUF .req r0
LEN .req r1
CRC .req r2
qzr .req q9
/**
* Calculate crc32
* BUF - buffer
* LEN - sizeof buffer (multiple of 16 bytes), LEN should be > 63
* CRC - initial crc32
* return %eax crc32
* uint crc32_pmull_le(unsigned char const *buffer,
* size_t len, uint crc32)
*/
ENTRY(crc32_pmull_le)
adr r3, .Lcrc32_constants
b 0f
ENTRY(crc32c_pmull_le)
adr r3, .Lcrc32c_constants
0: bic LEN, LEN, #15
vld1.8 {q1-q2}, [BUF, :128]!
vld1.8 {q3-q4}, [BUF, :128]!
vmov.i8 qzr, #0
vmov.i8 qCONSTANT, #0
vmov dCONSTANTl[0], CRC
veor.8 d2, d2, dCONSTANTl
sub LEN, LEN, #0x40
cmp LEN, #0x40
blt less_64
vld1.64 {qCONSTANT}, [r3]
loop_64: /* 64 bytes Full cache line folding */
sub LEN, LEN, #0x40
vmull.p64 q5, d3, dCONSTANTh
vmull.p64 q6, d5, dCONSTANTh
vmull.p64 q7, d7, dCONSTANTh
vmull.p64 q8, d9, dCONSTANTh
vmull.p64 q1, d2, dCONSTANTl
vmull.p64 q2, d4, dCONSTANTl
vmull.p64 q3, d6, dCONSTANTl
vmull.p64 q4, d8, dCONSTANTl
veor.8 q1, q1, q5
vld1.8 {q5}, [BUF, :128]!
veor.8 q2, q2, q6
vld1.8 {q6}, [BUF, :128]!
veor.8 q3, q3, q7
vld1.8 {q7}, [BUF, :128]!
veor.8 q4, q4, q8
vld1.8 {q8}, [BUF, :128]!
veor.8 q1, q1, q5
veor.8 q2, q2, q6
veor.8 q3, q3, q7
veor.8 q4, q4, q8
cmp LEN, #0x40
bge loop_64
less_64: /* Folding cache line into 128bit */
vldr dCONSTANTl, [r3, #16]
vldr dCONSTANTh, [r3, #24]
vmull.p64 q5, d3, dCONSTANTh
vmull.p64 q1, d2, dCONSTANTl
veor.8 q1, q1, q5
veor.8 q1, q1, q2
vmull.p64 q5, d3, dCONSTANTh
vmull.p64 q1, d2, dCONSTANTl
veor.8 q1, q1, q5
veor.8 q1, q1, q3
vmull.p64 q5, d3, dCONSTANTh
vmull.p64 q1, d2, dCONSTANTl
veor.8 q1, q1, q5
veor.8 q1, q1, q4
teq LEN, #0
beq fold_64
loop_16: /* Folding rest buffer into 128bit */
subs LEN, LEN, #0x10
vld1.8 {q2}, [BUF, :128]!
vmull.p64 q5, d3, dCONSTANTh
vmull.p64 q1, d2, dCONSTANTl
veor.8 q1, q1, q5
veor.8 q1, q1, q2
bne loop_16
fold_64:
/* perform the last 64 bit fold, also adds 32 zeroes
* to the input stream */
vmull.p64 q2, d2, dCONSTANTh
vext.8 q1, q1, qzr, #8
veor.8 q1, q1, q2
/* final 32-bit fold */
vldr dCONSTANTl, [r3, #32]
vldr d6, [r3, #40]
vmov.i8 d7, #0
vext.8 q2, q1, qzr, #4
vand.8 d2, d2, d6
vmull.p64 q1, d2, dCONSTANTl
veor.8 q1, q1, q2
/* Finish up with the bit-reversed barrett reduction 64 ==> 32 bits */
vldr dCONSTANTl, [r3, #48]
vldr dCONSTANTh, [r3, #56]
vand.8 q2, q1, q3
vext.8 q2, qzr, q2, #8
vmull.p64 q2, d5, dCONSTANTh
vand.8 q2, q2, q3
vmull.p64 q2, d4, dCONSTANTl
veor.8 q1, q1, q2
vmov r0, s5
bx lr
ENDPROC(crc32_pmull_le)
ENDPROC(crc32c_pmull_le)
.macro __crc32, c
subs ip, r2, #8
bmi .Ltail\c
tst r1, #3
bne .Lunaligned\c
teq ip, #0
.Laligned8\c:
ldrd r2, r3, [r1], #8
ARM_BE8(rev r2, r2 )
ARM_BE8(rev r3, r3 )
crc32\c\()w r0, r0, r2
crc32\c\()w r0, r0, r3
bxeq lr
subs ip, ip, #8
bpl .Laligned8\c
.Ltail\c:
tst ip, #4
beq 2f
ldr r3, [r1], #4
ARM_BE8(rev r3, r3 )
crc32\c\()w r0, r0, r3
2: tst ip, #2
beq 1f
ldrh r3, [r1], #2
ARM_BE8(rev16 r3, r3 )
crc32\c\()h r0, r0, r3
1: tst ip, #1
bxeq lr
ldrb r3, [r1]
crc32\c\()b r0, r0, r3
bx lr
.Lunaligned\c:
tst r1, #1
beq 2f
ldrb r3, [r1], #1
subs r2, r2, #1
crc32\c\()b r0, r0, r3
tst r1, #2
beq 0f
2: ldrh r3, [r1], #2
subs r2, r2, #2
ARM_BE8(rev16 r3, r3 )
crc32\c\()h r0, r0, r3
0: subs ip, r2, #8
bpl .Laligned8\c
b .Ltail\c
.endm
.align 5
ENTRY(crc32_armv8_le)
__crc32
ENDPROC(crc32_armv8_le)
.align 5
ENTRY(crc32c_armv8_le)
__crc32 c
ENDPROC(crc32c_armv8_le)

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/*
* Accelerated CRC32(C) using ARM CRC, NEON and Crypto Extensions instructions
*
* Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/crc32.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <crypto/internal/hash.h>
#include <asm/hwcap.h>
#include <asm/neon.h>
#include <asm/simd.h>
#include <asm/unaligned.h>
#define PMULL_MIN_LEN 64L /* minimum size of buffer
* for crc32_pmull_le_16 */
#define SCALE_F 16L /* size of NEON register */
asmlinkage u32 crc32_pmull_le(const u8 buf[], u32 len, u32 init_crc);
asmlinkage u32 crc32_armv8_le(u32 init_crc, const u8 buf[], u32 len);
asmlinkage u32 crc32c_pmull_le(const u8 buf[], u32 len, u32 init_crc);
asmlinkage u32 crc32c_armv8_le(u32 init_crc, const u8 buf[], u32 len);
static u32 (*fallback_crc32)(u32 init_crc, const u8 buf[], u32 len);
static u32 (*fallback_crc32c)(u32 init_crc, const u8 buf[], u32 len);
static int crc32_cra_init(struct crypto_tfm *tfm)
{
u32 *key = crypto_tfm_ctx(tfm);
*key = 0;
return 0;
}
static int crc32c_cra_init(struct crypto_tfm *tfm)
{
u32 *key = crypto_tfm_ctx(tfm);
*key = ~0;
return 0;
}
static int crc32_setkey(struct crypto_shash *hash, const u8 *key,
unsigned int keylen)
{
u32 *mctx = crypto_shash_ctx(hash);
if (keylen != sizeof(u32)) {
crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
*mctx = le32_to_cpup((__le32 *)key);
return 0;
}
static int crc32_init(struct shash_desc *desc)
{
u32 *mctx = crypto_shash_ctx(desc->tfm);
u32 *crc = shash_desc_ctx(desc);
*crc = *mctx;
return 0;
}
static int crc32_update(struct shash_desc *desc, const u8 *data,
unsigned int length)
{
u32 *crc = shash_desc_ctx(desc);
*crc = crc32_armv8_le(*crc, data, length);
return 0;
}
static int crc32c_update(struct shash_desc *desc, const u8 *data,
unsigned int length)
{
u32 *crc = shash_desc_ctx(desc);
*crc = crc32c_armv8_le(*crc, data, length);
return 0;
}
static int crc32_final(struct shash_desc *desc, u8 *out)
{
u32 *crc = shash_desc_ctx(desc);
put_unaligned_le32(*crc, out);
return 0;
}
static int crc32c_final(struct shash_desc *desc, u8 *out)
{
u32 *crc = shash_desc_ctx(desc);
put_unaligned_le32(~*crc, out);
return 0;
}
static int crc32_pmull_update(struct shash_desc *desc, const u8 *data,
unsigned int length)
{
u32 *crc = shash_desc_ctx(desc);
unsigned int l;
if (may_use_simd()) {
if ((u32)data % SCALE_F) {
l = min_t(u32, length, SCALE_F - ((u32)data % SCALE_F));
*crc = fallback_crc32(*crc, data, l);
data += l;
length -= l;
}
if (length >= PMULL_MIN_LEN) {
l = round_down(length, SCALE_F);
kernel_neon_begin();
*crc = crc32_pmull_le(data, l, *crc);
kernel_neon_end();
data += l;
length -= l;
}
}
if (length > 0)
*crc = fallback_crc32(*crc, data, length);
return 0;
}
static int crc32c_pmull_update(struct shash_desc *desc, const u8 *data,
unsigned int length)
{
u32 *crc = shash_desc_ctx(desc);
unsigned int l;
if (may_use_simd()) {
if ((u32)data % SCALE_F) {
l = min_t(u32, length, SCALE_F - ((u32)data % SCALE_F));
*crc = fallback_crc32c(*crc, data, l);
data += l;
length -= l;
}
if (length >= PMULL_MIN_LEN) {
l = round_down(length, SCALE_F);
kernel_neon_begin();
*crc = crc32c_pmull_le(data, l, *crc);
kernel_neon_end();
data += l;
length -= l;
}
}
if (length > 0)
*crc = fallback_crc32c(*crc, data, length);
return 0;
}
static struct shash_alg crc32_pmull_algs[] = { {
.setkey = crc32_setkey,
.init = crc32_init,
.update = crc32_update,
.final = crc32_final,
.descsize = sizeof(u32),
.digestsize = sizeof(u32),
.base.cra_ctxsize = sizeof(u32),
.base.cra_init = crc32_cra_init,
.base.cra_name = "crc32",
.base.cra_driver_name = "crc32-arm-ce",
.base.cra_priority = 200,
.base.cra_blocksize = 1,
.base.cra_module = THIS_MODULE,
}, {
.setkey = crc32_setkey,
.init = crc32_init,
.update = crc32c_update,
.final = crc32c_final,
.descsize = sizeof(u32),
.digestsize = sizeof(u32),
.base.cra_ctxsize = sizeof(u32),
.base.cra_init = crc32c_cra_init,
.base.cra_name = "crc32c",
.base.cra_driver_name = "crc32c-arm-ce",
.base.cra_priority = 200,
.base.cra_blocksize = 1,
.base.cra_module = THIS_MODULE,
} };
static int __init crc32_pmull_mod_init(void)
{
if (elf_hwcap2 & HWCAP2_PMULL) {
crc32_pmull_algs[0].update = crc32_pmull_update;
crc32_pmull_algs[1].update = crc32c_pmull_update;
if (elf_hwcap2 & HWCAP2_CRC32) {
fallback_crc32 = crc32_armv8_le;
fallback_crc32c = crc32c_armv8_le;
} else {
fallback_crc32 = crc32_le;
fallback_crc32c = __crc32c_le;
}
} else if (!(elf_hwcap2 & HWCAP2_CRC32)) {
return -ENODEV;
}
return crypto_register_shashes(crc32_pmull_algs,
ARRAY_SIZE(crc32_pmull_algs));
}
static void __exit crc32_pmull_mod_exit(void)
{
crypto_unregister_shashes(crc32_pmull_algs,
ARRAY_SIZE(crc32_pmull_algs));
}
module_init(crc32_pmull_mod_init);
module_exit(crc32_pmull_mod_exit);
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS_CRYPTO("crc32");
MODULE_ALIAS_CRYPTO("crc32c");

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//
// Accelerated CRC-T10DIF using ARM NEON and Crypto Extensions instructions
//
// Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
//
// Implement fast CRC-T10DIF computation with SSE and PCLMULQDQ instructions
//
// Copyright (c) 2013, Intel Corporation
//
// Authors:
// Erdinc Ozturk <erdinc.ozturk@intel.com>
// Vinodh Gopal <vinodh.gopal@intel.com>
// James Guilford <james.guilford@intel.com>
// Tim Chen <tim.c.chen@linux.intel.com>
//
// This software is available to you under a choice of one of two
// licenses. You may choose to be licensed under the terms of the GNU
// General Public License (GPL) Version 2, available from the file
// COPYING in the main directory of this source tree, or the
// OpenIB.org BSD license below:
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// * Neither the name of the Intel Corporation nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
//
// THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Function API:
// UINT16 crc_t10dif_pcl(
// UINT16 init_crc, //initial CRC value, 16 bits
// const unsigned char *buf, //buffer pointer to calculate CRC on
// UINT64 len //buffer length in bytes (64-bit data)
// );
//
// Reference paper titled "Fast CRC Computation for Generic
// Polynomials Using PCLMULQDQ Instruction"
// URL: http://www.intel.com/content/dam/www/public/us/en/documents
// /white-papers/fast-crc-computation-generic-polynomials-pclmulqdq-paper.pdf
//
//
#include <linux/linkage.h>
#include <asm/assembler.h>
#ifdef CONFIG_CPU_ENDIAN_BE8
#define CPU_LE(code...)
#else
#define CPU_LE(code...) code
#endif
.text
.fpu crypto-neon-fp-armv8
arg1_low32 .req r0
arg2 .req r1
arg3 .req r2
qzr .req q13
q0l .req d0
q0h .req d1
q1l .req d2
q1h .req d3
q2l .req d4
q2h .req d5
q3l .req d6
q3h .req d7
q4l .req d8
q4h .req d9
q5l .req d10
q5h .req d11
q6l .req d12
q6h .req d13
q7l .req d14
q7h .req d15
ENTRY(crc_t10dif_pmull)
vmov.i8 qzr, #0 // init zero register
// adjust the 16-bit initial_crc value, scale it to 32 bits
lsl arg1_low32, arg1_low32, #16
// check if smaller than 256
cmp arg3, #256
// for sizes less than 128, we can't fold 64B at a time...
blt _less_than_128
// load the initial crc value
// crc value does not need to be byte-reflected, but it needs
// to be moved to the high part of the register.
// because data will be byte-reflected and will align with
// initial crc at correct place.
vmov s0, arg1_low32 // initial crc
vext.8 q10, qzr, q0, #4
// receive the initial 64B data, xor the initial crc value
vld1.64 {q0-q1}, [arg2, :128]!
vld1.64 {q2-q3}, [arg2, :128]!
vld1.64 {q4-q5}, [arg2, :128]!
vld1.64 {q6-q7}, [arg2, :128]!
CPU_LE( vrev64.8 q0, q0 )
CPU_LE( vrev64.8 q1, q1 )
CPU_LE( vrev64.8 q2, q2 )
CPU_LE( vrev64.8 q3, q3 )
CPU_LE( vrev64.8 q4, q4 )
CPU_LE( vrev64.8 q5, q5 )
CPU_LE( vrev64.8 q6, q6 )
CPU_LE( vrev64.8 q7, q7 )
vswp d0, d1
vswp d2, d3
vswp d4, d5
vswp d6, d7
vswp d8, d9
vswp d10, d11
vswp d12, d13
vswp d14, d15
// XOR the initial_crc value
veor.8 q0, q0, q10
adr ip, rk3
vld1.64 {q10}, [ip, :128] // xmm10 has rk3 and rk4
//
// we subtract 256 instead of 128 to save one instruction from the loop
//
sub arg3, arg3, #256
// at this section of the code, there is 64*x+y (0<=y<64) bytes of
// buffer. The _fold_64_B_loop will fold 64B at a time
// until we have 64+y Bytes of buffer
// fold 64B at a time. This section of the code folds 4 vector
// registers in parallel
_fold_64_B_loop:
.macro fold64, reg1, reg2
vld1.64 {q11-q12}, [arg2, :128]!
vmull.p64 q8, \reg1\()h, d21
vmull.p64 \reg1, \reg1\()l, d20
vmull.p64 q9, \reg2\()h, d21
vmull.p64 \reg2, \reg2\()l, d20
CPU_LE( vrev64.8 q11, q11 )
CPU_LE( vrev64.8 q12, q12 )
vswp d22, d23
vswp d24, d25
veor.8 \reg1, \reg1, q8
veor.8 \reg2, \reg2, q9
veor.8 \reg1, \reg1, q11
veor.8 \reg2, \reg2, q12
.endm
fold64 q0, q1
fold64 q2, q3
fold64 q4, q5
fold64 q6, q7
subs arg3, arg3, #128
// check if there is another 64B in the buffer to be able to fold
bge _fold_64_B_loop
// at this point, the buffer pointer is pointing at the last y Bytes
// of the buffer the 64B of folded data is in 4 of the vector
// registers: v0, v1, v2, v3
// fold the 8 vector registers to 1 vector register with different
// constants
adr ip, rk9
vld1.64 {q10}, [ip, :128]!
.macro fold16, reg, rk
vmull.p64 q8, \reg\()l, d20
vmull.p64 \reg, \reg\()h, d21
.ifnb \rk
vld1.64 {q10}, [ip, :128]!
.endif
veor.8 q7, q7, q8
veor.8 q7, q7, \reg
.endm
fold16 q0, rk11
fold16 q1, rk13
fold16 q2, rk15
fold16 q3, rk17
fold16 q4, rk19
fold16 q5, rk1
fold16 q6
// instead of 64, we add 48 to the loop counter to save 1 instruction
// from the loop instead of a cmp instruction, we use the negative
// flag with the jl instruction
adds arg3, arg3, #(128-16)
blt _final_reduction_for_128
// now we have 16+y bytes left to reduce. 16 Bytes is in register v7
// and the rest is in memory. We can fold 16 bytes at a time if y>=16
// continue folding 16B at a time
_16B_reduction_loop:
vmull.p64 q8, d14, d20
vmull.p64 q7, d15, d21
veor.8 q7, q7, q8
vld1.64 {q0}, [arg2, :128]!
CPU_LE( vrev64.8 q0, q0 )
vswp d0, d1
veor.8 q7, q7, q0
subs arg3, arg3, #16
// instead of a cmp instruction, we utilize the flags with the
// jge instruction equivalent of: cmp arg3, 16-16
// check if there is any more 16B in the buffer to be able to fold
bge _16B_reduction_loop
// now we have 16+z bytes left to reduce, where 0<= z < 16.
// first, we reduce the data in the xmm7 register
_final_reduction_for_128:
// check if any more data to fold. If not, compute the CRC of
// the final 128 bits
adds arg3, arg3, #16
beq _128_done
// here we are getting data that is less than 16 bytes.
// since we know that there was data before the pointer, we can
// offset the input pointer before the actual point, to receive
// exactly 16 bytes. after that the registers need to be adjusted.
_get_last_two_regs:
add arg2, arg2, arg3
sub arg2, arg2, #16
vld1.64 {q1}, [arg2]
CPU_LE( vrev64.8 q1, q1 )
vswp d2, d3
// get rid of the extra data that was loaded before
// load the shift constant
adr ip, tbl_shf_table + 16
sub ip, ip, arg3
vld1.8 {q0}, [ip]
// shift v2 to the left by arg3 bytes
vtbl.8 d4, {d14-d15}, d0
vtbl.8 d5, {d14-d15}, d1
// shift v7 to the right by 16-arg3 bytes
vmov.i8 q9, #0x80
veor.8 q0, q0, q9
vtbl.8 d18, {d14-d15}, d0
vtbl.8 d19, {d14-d15}, d1
// blend
vshr.s8 q0, q0, #7 // convert to 8-bit mask
vbsl.8 q0, q2, q1
// fold 16 Bytes
vmull.p64 q8, d18, d20
vmull.p64 q7, d19, d21
veor.8 q7, q7, q8
veor.8 q7, q7, q0
_128_done:
// compute crc of a 128-bit value
vldr d20, rk5
vldr d21, rk6 // rk5 and rk6 in xmm10
// 64b fold
vext.8 q0, qzr, q7, #8
vmull.p64 q7, d15, d20
veor.8 q7, q7, q0
// 32b fold
vext.8 q0, q7, qzr, #12
vmov s31, s3
vmull.p64 q0, d0, d21
veor.8 q7, q0, q7
// barrett reduction
_barrett:
vldr d20, rk7
vldr d21, rk8
vmull.p64 q0, d15, d20
vext.8 q0, qzr, q0, #12
vmull.p64 q0, d1, d21
vext.8 q0, qzr, q0, #12
veor.8 q7, q7, q0
vmov r0, s29
_cleanup:
// scale the result back to 16 bits
lsr r0, r0, #16
bx lr
_less_than_128:
teq arg3, #0
beq _cleanup
vmov.i8 q0, #0
vmov s3, arg1_low32 // get the initial crc value
vld1.64 {q7}, [arg2, :128]!
CPU_LE( vrev64.8 q7, q7 )
vswp d14, d15
veor.8 q7, q7, q0
cmp arg3, #16
beq _128_done // exactly 16 left
blt _less_than_16_left
// now if there is, load the constants
vldr d20, rk1
vldr d21, rk2 // rk1 and rk2 in xmm10
// check if there is enough buffer to be able to fold 16B at a time
subs arg3, arg3, #32
addlt arg3, arg3, #16
blt _get_last_two_regs
b _16B_reduction_loop
_less_than_16_left:
// shl r9, 4
adr ip, tbl_shf_table + 16
sub ip, ip, arg3
vld1.8 {q0}, [ip]
vmov.i8 q9, #0x80
veor.8 q0, q0, q9
vtbl.8 d18, {d14-d15}, d0
vtbl.8 d15, {d14-d15}, d1
vmov d14, d18
b _128_done
ENDPROC(crc_t10dif_pmull)
// precomputed constants
// these constants are precomputed from the poly:
// 0x8bb70000 (0x8bb7 scaled to 32 bits)
.align 4
// Q = 0x18BB70000
// rk1 = 2^(32*3) mod Q << 32
// rk2 = 2^(32*5) mod Q << 32
// rk3 = 2^(32*15) mod Q << 32
// rk4 = 2^(32*17) mod Q << 32
// rk5 = 2^(32*3) mod Q << 32
// rk6 = 2^(32*2) mod Q << 32
// rk7 = floor(2^64/Q)
// rk8 = Q
rk3: .quad 0x9d9d000000000000
rk4: .quad 0x7cf5000000000000
rk5: .quad 0x2d56000000000000
rk6: .quad 0x1368000000000000
rk7: .quad 0x00000001f65a57f8
rk8: .quad 0x000000018bb70000
rk9: .quad 0xceae000000000000
rk10: .quad 0xbfd6000000000000
rk11: .quad 0x1e16000000000000
rk12: .quad 0x713c000000000000
rk13: .quad 0xf7f9000000000000
rk14: .quad 0x80a6000000000000
rk15: .quad 0x044c000000000000
rk16: .quad 0xe658000000000000
rk17: .quad 0xad18000000000000
rk18: .quad 0xa497000000000000
rk19: .quad 0x6ee3000000000000
rk20: .quad 0xe7b5000000000000
rk1: .quad 0x2d56000000000000
rk2: .quad 0x06df000000000000
tbl_shf_table:
// use these values for shift constants for the tbl/tbx instruction
// different alignments result in values as shown:
// DDQ 0x008f8e8d8c8b8a898887868584838281 # shl 15 (16-1) / shr1
// DDQ 0x01008f8e8d8c8b8a8988878685848382 # shl 14 (16-3) / shr2
// DDQ 0x0201008f8e8d8c8b8a89888786858483 # shl 13 (16-4) / shr3
// DDQ 0x030201008f8e8d8c8b8a898887868584 # shl 12 (16-4) / shr4
// DDQ 0x04030201008f8e8d8c8b8a8988878685 # shl 11 (16-5) / shr5
// DDQ 0x0504030201008f8e8d8c8b8a89888786 # shl 10 (16-6) / shr6
// DDQ 0x060504030201008f8e8d8c8b8a898887 # shl 9 (16-7) / shr7
// DDQ 0x07060504030201008f8e8d8c8b8a8988 # shl 8 (16-8) / shr8
// DDQ 0x0807060504030201008f8e8d8c8b8a89 # shl 7 (16-9) / shr9
// DDQ 0x090807060504030201008f8e8d8c8b8a # shl 6 (16-10) / shr10
// DDQ 0x0a090807060504030201008f8e8d8c8b # shl 5 (16-11) / shr11
// DDQ 0x0b0a090807060504030201008f8e8d8c # shl 4 (16-12) / shr12
// DDQ 0x0c0b0a090807060504030201008f8e8d # shl 3 (16-13) / shr13
// DDQ 0x0d0c0b0a090807060504030201008f8e # shl 2 (16-14) / shr14
// DDQ 0x0e0d0c0b0a090807060504030201008f # shl 1 (16-15) / shr15
.byte 0x0, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87
.byte 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f
.byte 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
.byte 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe , 0x0

101
arch/arm/crypto/crct10dif-ce-glue.c Normal file
View file

@ -0,0 +1,101 @@
/*
* Accelerated CRC-T10DIF using ARM NEON and Crypto Extensions instructions
*
* Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/crc-t10dif.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <crypto/internal/hash.h>
#include <asm/neon.h>
#include <asm/simd.h>
#define CRC_T10DIF_PMULL_CHUNK_SIZE 16U
asmlinkage u16 crc_t10dif_pmull(u16 init_crc, const u8 buf[], u32 len);
static int crct10dif_init(struct shash_desc *desc)
{
u16 *crc = shash_desc_ctx(desc);
*crc = 0;
return 0;
}
static int crct10dif_update(struct shash_desc *desc, const u8 *data,
unsigned int length)
{
u16 *crc = shash_desc_ctx(desc);
unsigned int l;
if (!may_use_simd()) {
*crc = crc_t10dif_generic(*crc, data, length);
} else {
if (unlikely((u32)data % CRC_T10DIF_PMULL_CHUNK_SIZE)) {
l = min_t(u32, length, CRC_T10DIF_PMULL_CHUNK_SIZE -
((u32)data % CRC_T10DIF_PMULL_CHUNK_SIZE));
*crc = crc_t10dif_generic(*crc, data, l);
length -= l;
data += l;
}
if (length > 0) {
kernel_neon_begin();
*crc = crc_t10dif_pmull(*crc, data, length);
kernel_neon_end();
}
}
return 0;
}
static int crct10dif_final(struct shash_desc *desc, u8 *out)
{
u16 *crc = shash_desc_ctx(desc);
*(u16 *)out = *crc;
return 0;
}
static struct shash_alg crc_t10dif_alg = {
.digestsize = CRC_T10DIF_DIGEST_SIZE,
.init = crct10dif_init,
.update = crct10dif_update,
.final = crct10dif_final,
.descsize = CRC_T10DIF_DIGEST_SIZE,
.base.cra_name = "crct10dif",
.base.cra_driver_name = "crct10dif-arm-ce",
.base.cra_priority = 200,
.base.cra_blocksize = CRC_T10DIF_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
};
static int __init crc_t10dif_mod_init(void)
{
if (!(elf_hwcap2 & HWCAP2_PMULL))
return -ENODEV;
return crypto_register_shash(&crc_t10dif_alg);
}
static void __exit crc_t10dif_mod_exit(void)
{
crypto_unregister_shash(&crc_t10dif_alg);
}
module_init(crc_t10dif_mod_init);
module_exit(crc_t10dif_mod_exit);
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS_CRYPTO("crct10dif");

8
arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
View file

@ -164,6 +164,14 @@
clocks = <&cpm_syscon0 1 21>;
status = "disabled";
};
cpm_trng: trng@760000 {
compatible = "marvell,armada-8k-rng", "inside-secure,safexcel-eip76";
reg = <0x760000 0x7d>;
interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpm_syscon0 1 25>;
status = "okay";
};
};
cpm_pcie0: pcie@f2600000 {

8
arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
View file

@ -164,6 +164,14 @@
clocks = <&cps_syscon0 1 21>;
status = "disabled";
};
cps_trng: trng@760000 {
compatible = "marvell,armada-8k-rng", "inside-secure,safexcel-eip76";
reg = <0x760000 0x7d>;
interrupts = <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cps_syscon0 1 25>;
status = "okay";
};
};
cps_pcie0: pcie@f4600000 {

2
arch/arm64/crypto/.gitignore vendored Normal file
View file

@ -0,0 +1,2 @@
sha256-core.S
sha512-core.S

23
arch/arm64/crypto/Kconfig
View file

@ -8,6 +8,14 @@ menuconfig ARM64_CRYPTO
if ARM64_CRYPTO
config CRYPTO_SHA256_ARM64
tristate "SHA-224/SHA-256 digest algorithm for arm64"
select CRYPTO_HASH
config CRYPTO_SHA512_ARM64
tristate "SHA-384/SHA-512 digest algorithm for arm64"
select CRYPTO_HASH
config CRYPTO_SHA1_ARM64_CE
tristate "SHA-1 digest algorithm (ARMv8 Crypto Extensions)"
depends on ARM64 && KERNEL_MODE_NEON
@ -23,6 +31,16 @@ config CRYPTO_GHASH_ARM64_CE
depends on ARM64 && KERNEL_MODE_NEON
select CRYPTO_HASH
config CRYPTO_CRCT10DIF_ARM64_CE
tristate "CRCT10DIF digest algorithm using PMULL instructions"
depends on KERNEL_MODE_NEON && CRC_T10DIF
select CRYPTO_HASH
config CRYPTO_CRC32_ARM64_CE
tristate "CRC32 and CRC32C digest algorithms using PMULL instructions"
depends on KERNEL_MODE_NEON && CRC32
select CRYPTO_HASH
config CRYPTO_AES_ARM64_CE
tristate "AES core cipher using ARMv8 Crypto Extensions"
depends on ARM64 && KERNEL_MODE_NEON
@ -40,17 +58,18 @@ config CRYPTO_AES_ARM64_CE_BLK
depends on ARM64 && KERNEL_MODE_NEON
select CRYPTO_BLKCIPHER
select CRYPTO_AES_ARM64_CE
select CRYPTO_ABLK_HELPER
select CRYPTO_SIMD
config CRYPTO_AES_ARM64_NEON_BLK
tristate "AES in ECB/CBC/CTR/XTS modes using NEON instructions"
depends on ARM64 && KERNEL_MODE_NEON
select CRYPTO_BLKCIPHER
select CRYPTO_AES
select CRYPTO_ABLK_HELPER
select CRYPTO_SIMD
config CRYPTO_CRC32_ARM64
tristate "CRC32 and CRC32C using optional ARMv8 instructions"
depends on ARM64
select CRYPTO_HASH
endif

23
arch/arm64/crypto/Makefile
View file

@ -17,6 +17,12 @@ sha2-ce-y := sha2-ce-glue.o sha2-ce-core.o
obj-$(CONFIG_CRYPTO_GHASH_ARM64_CE) += ghash-ce.o
ghash-ce-y := ghash-ce-glue.o ghash-ce-core.o
obj-$(CONFIG_CRYPTO_CRCT10DIF_ARM64_CE) += crct10dif-ce.o
crct10dif-ce-y := crct10dif-ce-core.o crct10dif-ce-glue.o
obj-$(CONFIG_CRYPTO_CRC32_ARM64_CE) += crc32-ce.o
crc32-ce-y:= crc32-ce-core.o crc32-ce-glue.o
obj-$(CONFIG_CRYPTO_AES_ARM64_CE) += aes-ce-cipher.o
CFLAGS_aes-ce-cipher.o += -march=armv8-a+crypto
@ -29,6 +35,12 @@ aes-ce-blk-y := aes-glue-ce.o aes-ce.o
obj-$(CONFIG_CRYPTO_AES_ARM64_NEON_BLK) += aes-neon-blk.o
aes-neon-blk-y := aes-glue-neon.o aes-neon.o
obj-$(CONFIG_CRYPTO_SHA256_ARM64) += sha256-arm64.o
sha256-arm64-y := sha256-glue.o sha256-core.o
obj-$(CONFIG_CRYPTO_SHA512_ARM64) += sha512-arm64.o
sha512-arm64-y := sha512-glue.o sha512-core.o
AFLAGS_aes-ce.o := -DINTERLEAVE=4
AFLAGS_aes-neon.o := -DINTERLEAVE=4
@ -40,3 +52,14 @@ CFLAGS_crc32-arm64.o := -mcpu=generic+crc
$(obj)/aes-glue-%.o: $(src)/aes-glue.c FORCE
$(call if_changed_rule,cc_o_c)
quiet_cmd_perlasm = PERLASM $@
cmd_perlasm = $(PERL) $(<) void $(@)
$(src)/sha256-core.S_shipped: $(src)/sha512-armv8.pl
$(call cmd,perlasm)
$(src)/sha512-core.S_shipped: $(src)/sha512-armv8.pl
$(call cmd,perlasm)
.PRECIOUS: $(obj)/sha256-core.S $(obj)/sha512-core.S

53
arch/arm64/crypto/aes-ce-ccm-core.S
View file

@ -9,6 +9,7 @@
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
.text
.arch armv8-a+crypto
@ -19,7 +20,7 @@
*/
ENTRY(ce_aes_ccm_auth_data)
ldr w8, [x3] /* leftover from prev round? */
ld1 {v0.2d}, [x0] /* load mac */
ld1 {v0.16b}, [x0] /* load mac */
cbz w8, 1f
sub w8, w8, #16
eor v1.16b, v1.16b, v1.16b
@ -31,7 +32,7 @@ ENTRY(ce_aes_ccm_auth_data)
beq 8f /* out of input? */
cbnz w8, 0b
eor v0.16b, v0.16b, v1.16b
1: ld1 {v3.2d}, [x4] /* load first round key */
1: ld1 {v3.16b}, [x4] /* load first round key */
prfm pldl1strm, [x1]
cmp w5, #12 /* which key size? */
add x6, x4, #16
@ -41,17 +42,17 @@ ENTRY(ce_aes_ccm_auth_data)
mov v5.16b, v3.16b
b 4f
2: mov v4.16b, v3.16b
ld1 {v5.2d}, [x6], #16 /* load 2nd round key */
ld1 {v5.16b}, [x6], #16 /* load 2nd round key */
3: aese v0.16b, v4.16b
aesmc v0.16b, v0.16b
4: ld1 {v3.2d}, [x6], #16 /* load next round key */
4: ld1 {v3.16b}, [x6], #16 /* load next round key */
aese v0.16b, v5.16b
aesmc v0.16b, v0.16b
5: ld1 {v4.2d}, [x6], #16 /* load next round key */
5: ld1 {v4.16b}, [x6], #16 /* load next round key */
subs w7, w7, #3
aese v0.16b, v3.16b
aesmc v0.16b, v0.16b
ld1 {v5.2d}, [x6], #16 /* load next round key */
ld1 {v5.16b}, [x6], #16 /* load next round key */
bpl 3b
aese v0.16b, v4.16b
subs w2, w2, #16 /* last data? */
@ -60,7 +61,7 @@ ENTRY(ce_aes_ccm_auth_data)
ld1 {v1.16b}, [x1], #16 /* load next input block */
eor v0.16b, v0.16b, v1.16b /* xor with mac */
bne 1b
6: st1 {v0.2d}, [x0] /* store mac */
6: st1 {v0.16b}, [x0] /* store mac */
beq 10f
adds w2, w2, #16
beq 10f
@ -79,7 +80,7 @@ ENTRY(ce_aes_ccm_auth_data)
adds w7, w7, #1
bne 9b
eor v0.16b, v0.16b, v1.16b
st1 {v0.2d}, [x0]
st1 {v0.16b}, [x0]
10: str w8, [x3]
ret
ENDPROC(ce_aes_ccm_auth_data)
@ -89,27 +90,27 @@ ENDPROC(ce_aes_ccm_auth_data)
* u32 rounds);
*/
ENTRY(ce_aes_ccm_final)
ld1 {v3.2d}, [x2], #16 /* load first round key */
ld1 {v0.2d}, [x0] /* load mac */
ld1 {v3.16b}, [x2], #16 /* load first round key */
ld1 {v0.16b}, [x0] /* load mac */
cmp w3, #12 /* which key size? */
sub w3, w3, #2 /* modified # of rounds */
ld1 {v1.2d}, [x1] /* load 1st ctriv */
ld1 {v1.16b}, [x1] /* load 1st ctriv */
bmi 0f
bne 3f
mov v5.16b, v3.16b
b 2f
0: mov v4.16b, v3.16b
1: ld1 {v5.2d}, [x2], #16 /* load next round key */
1: ld1 {v5.16b}, [x2], #16 /* load next round key */
aese v0.16b, v4.16b
aesmc v0.16b, v0.16b
aese v1.16b, v4.16b
aesmc v1.16b, v1.16b
2: ld1 {v3.2d}, [x2], #16 /* load next round key */
2: ld1 {v3.16b}, [x2], #16 /* load next round key */
aese v0.16b, v5.16b
aesmc v0.16b, v0.16b
aese v1.16b, v5.16b
aesmc v1.16b, v1.16b
3: ld1 {v4.2d}, [x2], #16 /* load next round key */
3: ld1 {v4.16b}, [x2], #16 /* load next round key */
subs w3, w3, #3
aese v0.16b, v3.16b
aesmc v0.16b, v0.16b
@ -120,47 +121,47 @@ ENTRY(ce_aes_ccm_final)
aese v1.16b, v4.16b
/* final round key cancels out */
eor v0.16b, v0.16b, v1.16b /* en-/decrypt the mac */
st1 {v0.2d}, [x0] /* store result */
st1 {v0.16b}, [x0] /* store result */
ret
ENDPROC(ce_aes_ccm_final)
.macro aes_ccm_do_crypt,enc
ldr x8, [x6, #8] /* load lower ctr */
ld1 {v0.2d}, [x5] /* load mac */
rev x8, x8 /* keep swabbed ctr in reg */
ld1 {v0.16b}, [x5] /* load mac */
CPU_LE( rev x8, x8 ) /* keep swabbed ctr in reg */
0: /* outer loop */
ld1 {v1.1d}, [x6] /* load upper ctr */
ld1 {v1.8b}, [x6] /* load upper ctr */
prfm pldl1strm, [x1]
add x8, x8, #1
rev x9, x8
cmp w4, #12 /* which key size? */
sub w7, w4, #2 /* get modified # of rounds */
ins v1.d[1], x9 /* no carry in lower ctr */
ld1 {v3.2d}, [x3] /* load first round key */
ld1 {v3.16b}, [x3] /* load first round key */
add x10, x3, #16
bmi 1f
bne 4f
mov v5.16b, v3.16b
b 3f
1: mov v4.16b, v3.16b
ld1 {v5.2d}, [x10], #16 /* load 2nd round key */
ld1 {v5.16b}, [x10], #16 /* load 2nd round key */
2: /* inner loop: 3 rounds, 2x interleaved */
aese v0.16b, v4.16b
aesmc v0.16b, v0.16b
aese v1.16b, v4.16b
aesmc v1.16b, v1.16b
3: ld1 {v3.2d}, [x10], #16 /* load next round key */
3: ld1 {v3.16b}, [x10], #16 /* load next round key */
aese v0.16b, v5.16b
aesmc v0.16b, v0.16b
aese v1.16b, v5.16b
aesmc v1.16b, v1.16b
4: ld1 {v4.2d}, [x10], #16 /* load next round key */
4: ld1 {v4.16b}, [x10], #16 /* load next round key */
subs w7, w7, #3
aese v0.16b, v3.16b
aesmc v0.16b, v0.16b
aese v1.16b, v3.16b
aesmc v1.16b, v1.16b
ld1 {v5.2d}, [x10], #16 /* load next round key */
ld1 {v5.16b}, [x10], #16 /* load next round key */
bpl 2b
aese v0.16b, v4.16b
aese v1.16b, v4.16b
@ -177,14 +178,14 @@ ENDPROC(ce_aes_ccm_final)
eor v0.16b, v0.16b, v2.16b /* xor mac with pt ^ rk[last] */
st1 {v1.16b}, [x0], #16 /* write output block */
bne 0b
rev x8, x8
st1 {v0.2d}, [x5] /* store mac */
CPU_LE( rev x8, x8 )
st1 {v0.16b}, [x5] /* store mac */
str x8, [x6, #8] /* store lsb end of ctr (BE) */
5: ret
6: eor v0.16b, v0.16b, v5.16b /* final round mac */
eor v1.16b, v1.16b, v5.16b /* final round enc */
st1 {v0.2d}, [x5] /* store mac */
st1 {v0.16b}, [x5] /* store mac */
add w2, w2, #16 /* process partial tail block */
7: ldrb w9, [x1], #1 /* get 1 byte of input */
umov w6, v1.b[0] /* get top crypted ctr byte */

50
arch/arm64/crypto/aes-ce-ccm-glue.c
View file

@ -11,9 +11,9 @@
#include <asm/neon.h>
#include <asm/unaligned.h>
#include <crypto/aes.h>
#include <crypto/algapi.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
#include <linux/module.h>
#include "aes-ce-setkey.h"
@ -149,12 +149,7 @@ static int ccm_encrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_aead_ctx(aead);
struct blkcipher_desc desc = { .info = req->iv };
struct blkcipher_walk walk;
struct scatterlist srcbuf[2];
struct scatterlist dstbuf[2];
struct scatterlist *src;
struct scatterlist *dst;
struct skcipher_walk walk;
u8 __aligned(8) mac[AES_BLOCK_SIZE];
u8 buf[AES_BLOCK_SIZE];
u32 len = req->cryptlen;
@ -172,27 +167,19 @@ static int ccm_encrypt(struct aead_request *req)
/* preserve the original iv for the final round */
memcpy(buf, req->iv, AES_BLOCK_SIZE);
src = scatterwalk_ffwd(srcbuf, req->src, req->assoclen);
dst = src;
if (req->src != req->dst)
dst = scatterwalk_ffwd(dstbuf, req->dst, req->assoclen);
blkcipher_walk_init(&walk, dst, src, len);
err = blkcipher_aead_walk_virt_block(&desc, &walk, aead,
AES_BLOCK_SIZE);
err = skcipher_walk_aead_encrypt(&walk, req, true);
while (walk.nbytes) {
u32 tail = walk.nbytes % AES_BLOCK_SIZE;
if (walk.nbytes == len)
if (walk.nbytes == walk.total)
tail = 0;
ce_aes_ccm_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
walk.nbytes - tail, ctx->key_enc,
num_rounds(ctx), mac, walk.iv);
len -= walk.nbytes - tail;
err = blkcipher_walk_done(&desc, &walk, tail);
err = skcipher_walk_done(&walk, tail);
}
if (!err)
ce_aes_ccm_final(mac, buf, ctx->key_enc, num_rounds(ctx));
@ -203,7 +190,7 @@ static int ccm_encrypt(struct aead_request *req)
return err;
/* copy authtag to end of dst */
scatterwalk_map_and_copy(mac, dst, req->cryptlen,
scatterwalk_map_and_copy(mac, req->dst, req->assoclen + req->cryptlen,
crypto_aead_authsize(aead), 1);
return 0;
@ -214,12 +201,7 @@ static int ccm_decrypt(struct aead_request *req)
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_aead_ctx(aead);
unsigned int authsize = crypto_aead_authsize(aead);
struct blkcipher_desc desc = { .info = req->iv };
struct blkcipher_walk walk;
struct scatterlist srcbuf[2];
struct scatterlist dstbuf[2];
struct scatterlist *src;
struct scatterlist *dst;
struct skcipher_walk walk;
u8 __aligned(8) mac[AES_BLOCK_SIZE];
u8 buf[AES_BLOCK_SIZE];
u32 len = req->cryptlen - authsize;
@ -237,27 +219,19 @@ static int ccm_decrypt(struct aead_request *req)
/* preserve the original iv for the final round */
memcpy(buf, req->iv, AES_BLOCK_SIZE);
src = scatterwalk_ffwd(srcbuf, req->src, req->assoclen);
dst = src;
if (req->src != req->dst)
dst = scatterwalk_ffwd(dstbuf, req->dst, req->assoclen);
blkcipher_walk_init(&walk, dst, src, len);
err = blkcipher_aead_walk_virt_block(&desc, &walk, aead,
AES_BLOCK_SIZE);
err = skcipher_walk_aead_decrypt(&walk, req, true);
while (walk.nbytes) {
u32 tail = walk.nbytes % AES_BLOCK_SIZE;
if (walk.nbytes == len)
if (walk.nbytes == walk.total)
tail = 0;
ce_aes_ccm_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
walk.nbytes - tail, ctx->key_enc,
num_rounds(ctx), mac, walk.iv);
len -= walk.nbytes - tail;
err = blkcipher_walk_done(&desc, &walk, tail);
err = skcipher_walk_done(&walk, tail);
}
if (!err)
ce_aes_ccm_final(mac, buf, ctx->key_enc, num_rounds(ctx));
@ -268,7 +242,8 @@ static int ccm_decrypt(struct aead_request *req)
return err;
/* compare calculated auth tag with the stored one */
scatterwalk_map_and_copy(buf, src, req->cryptlen - authsize,
scatterwalk_map_and_copy(buf, req->src,
req->assoclen + req->cryptlen - authsize,
authsize, 0);
if (crypto_memneq(mac, buf, authsize))
@ -287,6 +262,7 @@ static struct aead_alg ccm_aes_alg = {
.cra_module = THIS_MODULE,
},
.ivsize = AES_BLOCK_SIZE,
.chunksize = AES_BLOCK_SIZE,
.maxauthsize = AES_BLOCK_SIZE,
.setkey = ccm_setkey,
.setauthsize = ccm_setauthsize,

25
arch/arm64/crypto/aes-ce-cipher.c
View file

@ -47,24 +47,24 @@ static void aes_cipher_encrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[])
kernel_neon_begin_partial(4);
__asm__(" ld1 {v0.16b}, %[in] ;"
" ld1 {v1.2d}, [%[key]], #16 ;"
" ld1 {v1.16b}, [%[key]], #16 ;"
" cmp %w[rounds], #10 ;"
" bmi 0f ;"
" bne 3f ;"
" mov v3.16b, v1.16b ;"
" b 2f ;"
"0: mov v2.16b, v1.16b ;"
" ld1 {v3.2d}, [%[key]], #16 ;"
" ld1 {v3.16b}, [%[key]], #16 ;"
"1: aese v0.16b, v2.16b ;"
" aesmc v0.16b, v0.16b ;"
"2: ld1 {v1.2d}, [%[key]], #16 ;"
"2: ld1 {v1.16b}, [%[key]], #16 ;"
" aese v0.16b, v3.16b ;"
" aesmc v0.16b, v0.16b ;"
"3: ld1 {v2.2d}, [%[key]], #16 ;"
"3: ld1 {v2.16b}, [%[key]], #16 ;"
" subs %w[rounds], %w[rounds], #3 ;"
" aese v0.16b, v1.16b ;"
" aesmc v0.16b, v0.16b ;"
" ld1 {v3.2d}, [%[key]], #16 ;"
" ld1 {v3.16b}, [%[key]], #16 ;"
" bpl 1b ;"
" aese v0.16b, v2.16b ;"
" eor v0.16b, v0.16b, v3.16b ;"
@ -92,24 +92,24 @@ static void aes_cipher_decrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[])
kernel_neon_begin_partial(4);
__asm__(" ld1 {v0.16b}, %[in] ;"
" ld1 {v1.2d}, [%[key]], #16 ;"
" ld1 {v1.16b}, [%[key]], #16 ;"
" cmp %w[rounds], #10 ;"
" bmi 0f ;"
" bne 3f ;"
" mov v3.16b, v1.16b ;"
" b 2f ;"
"0: mov v2.16b, v1.16b ;"
" ld1 {v3.2d}, [%[key]], #16 ;"
" ld1 {v3.16b}, [%[key]], #16 ;"
"1: aesd v0.16b, v2.16b ;"
" aesimc v0.16b, v0.16b ;"
"2: ld1 {v1.2d}, [%[key]], #16 ;"
"2: ld1 {v1.16b}, [%[key]], #16 ;"
" aesd v0.16b, v3.16b ;"
" aesimc v0.16b, v0.16b ;"
"3: ld1 {v2.2d}, [%[key]], #16 ;"
"3: ld1 {v2.16b}, [%[key]], #16 ;"
" subs %w[rounds], %w[rounds], #3 ;"
" aesd v0.16b, v1.16b ;"
" aesimc v0.16b, v0.16b ;"
" ld1 {v3.2d}, [%[key]], #16 ;"
" ld1 {v3.16b}, [%[key]], #16 ;"
" bpl 1b ;"
" aesd v0.16b, v2.16b ;"
" eor v0.16b, v0.16b, v3.16b ;"
@ -173,7 +173,12 @@ int ce_aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
u32 *rki = ctx->key_enc + (i * kwords);
u32 *rko = rki + kwords;
#ifndef CONFIG_CPU_BIG_ENDIAN
rko[0] = ror32(aes_sub(rki[kwords - 1]), 8) ^ rcon[i] ^ rki[0];
#else
rko[0] = rol32(aes_sub(rki[kwords - 1]), 8) ^ (rcon[i] << 24) ^
rki[0];
#endif
rko[1] = rko[0] ^ rki[1];
rko[2] = rko[1] ^ rki[2];
rko[3] = rko[2] ^ rki[3];

1
arch/arm64/crypto/aes-ce.S
View file

@ -10,6 +10,7 @@
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
#define AES_ENTRY(func) ENTRY(ce_ ## func)
#define AES_ENDPROC(func) ENDPROC(ce_ ## func)

383
arch/arm64/crypto/aes-glue.c
View file

@ -11,8 +11,8 @@
#include <asm/neon.h>
#include <asm/hwcap.h>
#include <crypto/aes.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
#include <linux/module.h>
#include <linux/cpufeature.h>
#include <crypto/xts.h>
@ -80,13 +80,19 @@ struct crypto_aes_xts_ctx {
struct crypto_aes_ctx __aligned(8) key2;
};
static int xts_set_key(struct crypto_tfm *tfm, const u8 *in_key,
static int skcipher_aes_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
return aes_setkey(crypto_skcipher_tfm(tfm), in_key, key_len);
}
static int xts_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_aes_xts_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
int ret;
ret = xts_check_key(tfm, in_key, key_len);
ret = xts_verify_key(tfm, in_key, key_len);
if (ret)
return ret;
@ -97,111 +103,101 @@ static int xts_set_key(struct crypto_tfm *tfm, const u8 *in_key,
if (!ret)
return 0;
tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int ecb_encrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
int err, first, rounds = 6 + ctx->key_length / 4;
struct blkcipher_walk walk;
struct skcipher_walk walk;
unsigned int blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
aes_ecb_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_enc, rounds, blocks, first);
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int ecb_decrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
int err, first, rounds = 6 + ctx->key_length / 4;
struct blkcipher_walk walk;
struct skcipher_walk walk;
unsigned int blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
aes_ecb_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_dec, rounds, blocks, first);
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int cbc_encrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
int err, first, rounds = 6 + ctx->key_length / 4;
struct blkcipher_walk walk;
struct skcipher_walk walk;
unsigned int blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
aes_cbc_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_enc, rounds, blocks, walk.iv,
first);
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int cbc_decrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
int err, first, rounds = 6 + ctx->key_length / 4;
struct blkcipher_walk walk;
struct skcipher_walk walk;
unsigned int blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
aes_cbc_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_dec, rounds, blocks, walk.iv,
first);
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int ctr_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int ctr_encrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
int err, first, rounds = 6 + ctx->key_length / 4;
struct blkcipher_walk walk;
struct skcipher_walk walk;
int blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
err = skcipher_walk_virt(&walk, req, true);
first = 1;
kernel_neon_begin();
@ -209,17 +205,14 @@ static int ctr_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
aes_ctr_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key_enc, rounds, blocks, walk.iv,
first);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
first = 0;
nbytes -= blocks * AES_BLOCK_SIZE;
if (nbytes && nbytes == walk.nbytes % AES_BLOCK_SIZE)
break;
err = blkcipher_walk_done(desc, &walk,
walk.nbytes % AES_BLOCK_SIZE);
}
if (walk.nbytes % AES_BLOCK_SIZE) {
u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
u8 *tsrc = walk.src.virt.addr + blocks * AES_BLOCK_SIZE;
if (walk.nbytes) {
u8 __aligned(8) tail[AES_BLOCK_SIZE];
unsigned int nbytes = walk.nbytes;
u8 *tdst = walk.dst.virt.addr;
u8 *tsrc = walk.src.virt.addr;
/*
* Minimum alignment is 8 bytes, so if nbytes is <= 8, we need
@ -230,227 +223,169 @@ static int ctr_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
aes_ctr_encrypt(tail, tsrc, (u8 *)ctx->key_enc, rounds,
blocks, walk.iv, first);
memcpy(tdst, tail, nbytes);
err = blkcipher_walk_done(desc, &walk, 0);
err = skcipher_walk_done(&walk, 0);
}
kernel_neon_end();
return err;
}
static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int xts_encrypt(struct skcipher_request *req)
{
struct crypto_aes_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
int err, first, rounds = 6 + ctx->key1.key_length / 4;
struct blkcipher_walk walk;
struct skcipher_walk walk;
unsigned int blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
aes_xts_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key1.key_enc, rounds, blocks,
(u8 *)ctx->key2.key_enc, walk.iv, first);
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int xts_decrypt(struct skcipher_request *req)
{
struct crypto_aes_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
int err, first, rounds = 6 + ctx->key1.key_length / 4;
struct blkcipher_walk walk;
struct skcipher_walk walk;
unsigned int blocks;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, true);
kernel_neon_begin();
for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) {
aes_xts_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
(u8 *)ctx->key1.key_dec, rounds, blocks,
(u8 *)ctx->key2.key_enc, walk.iv, first);
err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, walk.nbytes % AES_BLOCK_SIZE);
}
kernel_neon_end();
return err;
}
static struct crypto_alg aes_algs[] = { {
.cra_name = "__ecb-aes-" MODE,
.cra_driver_name = "__driver-ecb-aes-" MODE,
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = 0,
.setkey = aes_setkey,
.encrypt = ecb_encrypt,
.decrypt = ecb_decrypt,
static struct skcipher_alg aes_algs[] = { {
.base = {
.cra_name = "__ecb(aes)",
.cra_driver_name = "__ecb-aes-" MODE,
.cra_priority = PRIO,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = skcipher_aes_setkey,
.encrypt = ecb_encrypt,
.decrypt = ecb_decrypt,
}, {
.cra_name = "__cbc-aes-" MODE,
.cra_driver_name = "__driver-cbc-aes-" MODE,
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = aes_setkey,
.encrypt = cbc_encrypt,
.decrypt = cbc_decrypt,
.base = {
.cra_name = "__cbc(aes)",
.cra_driver_name = "__cbc-aes-" MODE,
.cra_priority = PRIO,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = skcipher_aes_setkey,
.encrypt = cbc_encrypt,
.decrypt = cbc_decrypt,
}, {
.cra_name = "__ctr-aes-" MODE,
.cra_driver_name = "__driver-ctr-aes-" MODE,
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = aes_setkey,
.encrypt = ctr_encrypt,
.decrypt = ctr_encrypt,
.base = {
.cra_name = "__ctr(aes)",
.cra_driver_name = "__ctr-aes-" MODE,
.cra_priority = PRIO,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.chunksize = AES_BLOCK_SIZE,
.setkey = skcipher_aes_setkey,
.encrypt = ctr_encrypt,
.decrypt = ctr_encrypt,
}, {
.cra_name = "__xts-aes-" MODE,
.cra_driver_name = "__driver-xts-aes-" MODE,
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_xts_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_blkcipher = {
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = xts_set_key,
.encrypt = xts_encrypt,
.decrypt = xts_decrypt,
.base = {
.cra_name = "__xts(aes)",
.cra_driver_name = "__xts-aes-" MODE,
.cra_priority = PRIO,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_xts_ctx),
.cra_alignmask = 7,
.cra_module = THIS_MODULE,
},
}, {
.cra_name = "ecb(aes)",
.cra_driver_name = "ecb-aes-" MODE,
.cra_priority = PRIO,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = 0,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
}, {
.cra_name = "cbc(aes)",
.cra_driver_name = "cbc-aes-" MODE,
.cra_priority = PRIO,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
}, {
.cra_name = "ctr(aes)",
.cra_driver_name = "ctr-aes-" MODE,
.cra_priority = PRIO,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
}, {
.cra_name = "xts(aes)",
.cra_driver_name = "xts-aes-" MODE,
.cra_priority = PRIO,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 7,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_init,
.cra_exit = ablk_exit,
.cra_ablkcipher = {
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
}
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = xts_set_key,
.encrypt = xts_encrypt,
.decrypt = xts_decrypt,
} };
static struct simd_skcipher_alg *aes_simd_algs[ARRAY_SIZE(aes_algs)];
static void aes_exit(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(aes_simd_algs) && aes_simd_algs[i]; i++)
simd_skcipher_free(aes_simd_algs[i]);
crypto_unregister_skciphers(aes_algs, ARRAY_SIZE(aes_algs));
}
static int __init aes_init(void)
{
return crypto_register_algs(aes_algs, ARRAY_SIZE(aes_algs));
}
struct simd_skcipher_alg *simd;
const char *basename;
const char *algname;
const char *drvname;
int err;
int i;
static void __exit aes_exit(void)
{
crypto_unregister_algs(aes_algs, ARRAY_SIZE(aes_algs));
err = crypto_register_skciphers(aes_algs, ARRAY_SIZE(aes_algs));
if (err)
return err;
for (i = 0; i < ARRAY_SIZE(aes_algs); i++) {
algname = aes_algs[i].base.cra_name + 2;
drvname = aes_algs[i].base.cra_driver_name + 2;
basename = aes_algs[i].base.cra_driver_name;
simd = simd_skcipher_create_compat(algname, drvname, basename);
err = PTR_ERR(simd);
if (IS_ERR(simd))
goto unregister_simds;
aes_simd_algs[i] = simd;
}
return 0;
unregister_simds:
aes_exit();
return err;
}
#ifdef USE_V8_CRYPTO_EXTENSIONS

3
arch/arm64/crypto/aes-modes.S
View file

@ -386,7 +386,8 @@ AES_ENDPROC(aes_ctr_encrypt)
.endm
.Lxts_mul_x:
.word 1, 0, 0x87, 0
CPU_LE( .quad 1, 0x87 )
CPU_BE( .quad 0x87, 1 )
AES_ENTRY(aes_xts_encrypt)
FRAME_PUSH

25
arch/arm64/crypto/aes-neon.S
View file

@ -9,6 +9,7 @@
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
#define AES_ENTRY(func) ENTRY(neon_ ## func)
#define AES_ENDPROC(func) ENDPROC(neon_ ## func)
@ -83,13 +84,13 @@
.endm
.macro do_block, enc, in, rounds, rk, rkp, i
ld1 {v15.16b}, [\rk]
ld1 {v15.4s}, [\rk]
add \rkp, \rk, #16
mov \i, \rounds
1111: eor \in\().16b, \in\().16b, v15.16b /* ^round key */
tbl \in\().16b, {\in\().16b}, v13.16b /* ShiftRows */
sub_bytes \in
ld1 {v15.16b}, [\rkp], #16
ld1 {v15.4s}, [\rkp], #16
subs \i, \i, #1
beq 2222f
.if \enc == 1
@ -229,7 +230,7 @@
.endm
.macro do_block_2x, enc, in0, in1 rounds, rk, rkp, i
ld1 {v15.16b}, [\rk]
ld1 {v15.4s}, [\rk]
add \rkp, \rk, #16
mov \i, \rounds
1111: eor \in0\().16b, \in0\().16b, v15.16b /* ^round key */
@ -237,7 +238,7 @@
sub_bytes_2x \in0, \in1
tbl \in0\().16b, {\in0\().16b}, v13.16b /* ShiftRows */
tbl \in1\().16b, {\in1\().16b}, v13.16b /* ShiftRows */
ld1 {v15.16b}, [\rkp], #16
ld1 {v15.4s}, [\rkp], #16
subs \i, \i, #1
beq 2222f
.if \enc == 1
@ -254,7 +255,7 @@
.endm
.macro do_block_4x, enc, in0, in1, in2, in3, rounds, rk, rkp, i
ld1 {v15.16b}, [\rk]
ld1 {v15.4s}, [\rk]
add \rkp, \rk, #16
mov \i, \rounds
1111: eor \in0\().16b, \in0\().16b, v15.16b /* ^round key */
@ -266,7 +267,7 @@
tbl \in1\().16b, {\in1\().16b}, v13.16b /* ShiftRows */
tbl \in2\().16b, {\in2\().16b}, v13.16b /* ShiftRows */
tbl \in3\().16b, {\in3\().16b}, v13.16b /* ShiftRows */
ld1 {v15.16b}, [\rkp], #16
ld1 {v15.4s}, [\rkp], #16
subs \i, \i, #1
beq 2222f
.if \enc == 1
@ -306,12 +307,16 @@
.text
.align 4
.LForward_ShiftRows:
.byte 0x0, 0x5, 0xa, 0xf, 0x4, 0x9, 0xe, 0x3
.byte 0x8, 0xd, 0x2, 0x7, 0xc, 0x1, 0x6, 0xb
CPU_LE( .byte 0x0, 0x5, 0xa, 0xf, 0x4, 0x9, 0xe, 0x3 )
CPU_LE( .byte 0x8, 0xd, 0x2, 0x7, 0xc, 0x1, 0x6, 0xb )
CPU_BE( .byte 0xb, 0x6, 0x1, 0xc, 0x7, 0x2, 0xd, 0x8 )
CPU_BE( .byte 0x3, 0xe, 0x9, 0x4, 0xf, 0xa, 0x5, 0x0 )
.LReverse_ShiftRows:
.byte 0x0, 0xd, 0xa, 0x7, 0x4, 0x1, 0xe, 0xb
.byte 0x8, 0x5, 0x2, 0xf, 0xc, 0x9, 0x6, 0x3
CPU_LE( .byte 0x0, 0xd, 0xa, 0x7, 0x4, 0x1, 0xe, 0xb )
CPU_LE( .byte 0x8, 0x5, 0x2, 0xf, 0xc, 0x9, 0x6, 0x3 )
CPU_BE( .byte 0x3, 0x6, 0x9, 0xc, 0xf, 0x2, 0x5, 0x8 )
CPU_BE( .byte 0xb, 0xe, 0x1, 0x4, 0x7, 0xa, 0xd, 0x0 )
.LForward_Sbox:
.byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5

266
arch/arm64/crypto/crc32-ce-core.S Normal file
View file

@ -0,0 +1,266 @@
/*
* Accelerated CRC32(C) using arm64 CRC, NEON and Crypto Extensions instructions
*
* Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see http://www.gnu.org/licenses
*
* Please visit http://www.xyratex.com/contact if you need additional
* information or have any questions.
*
* GPL HEADER END
*/
/*
* Copyright 2012 Xyratex Technology Limited
*
* Using hardware provided PCLMULQDQ instruction to accelerate the CRC32
* calculation.
* CRC32 polynomial:0x04c11db7(BE)/0xEDB88320(LE)
* PCLMULQDQ is a new instruction in Intel SSE4.2, the reference can be found
* at:
* http://www.intel.com/products/processor/manuals/
* Intel(R) 64 and IA-32 Architectures Software Developer's Manual
* Volume 2B: Instruction Set Reference, N-Z
*
* Authors: Gregory Prestas <Gregory_Prestas@us.xyratex.com>
* Alexander Boyko <Alexander_Boyko@xyratex.com>
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
.text
.align 6
.cpu generic+crypto+crc
.Lcrc32_constants:
/*
* [x4*128+32 mod P(x) << 32)]' << 1 = 0x154442bd4
* #define CONSTANT_R1 0x154442bd4LL
*
* [(x4*128-32 mod P(x) << 32)]' << 1 = 0x1c6e41596
* #define CONSTANT_R2 0x1c6e41596LL
*/
.octa 0x00000001c6e415960000000154442bd4
/*
* [(x128+32 mod P(x) << 32)]' << 1 = 0x1751997d0
* #define CONSTANT_R3 0x1751997d0LL
*
* [(x128-32 mod P(x) << 32)]' << 1 = 0x0ccaa009e
* #define CONSTANT_R4 0x0ccaa009eLL
*/
.octa 0x00000000ccaa009e00000001751997d0
/*
* [(x64 mod P(x) << 32)]' << 1 = 0x163cd6124
* #define CONSTANT_R5 0x163cd6124LL
*/
.quad 0x0000000163cd6124
.quad 0x00000000FFFFFFFF
/*
* #define CRCPOLY_TRUE_LE_FULL 0x1DB710641LL
*
* Barrett Reduction constant (u64`) = u` = (x**64 / P(x))`
* = 0x1F7011641LL
* #define CONSTANT_RU 0x1F7011641LL
*/
.octa 0x00000001F701164100000001DB710641
.Lcrc32c_constants:
.octa 0x000000009e4addf800000000740eef02
.octa 0x000000014cd00bd600000000f20c0dfe
.quad 0x00000000dd45aab8
.quad 0x00000000FFFFFFFF
.octa 0x00000000dea713f10000000105ec76f0
vCONSTANT .req v0
dCONSTANT .req d0
qCONSTANT .req q0
BUF .req x0
LEN .req x1
CRC .req x2
vzr .req v9
/**
* Calculate crc32
* BUF - buffer
* LEN - sizeof buffer (multiple of 16 bytes), LEN should be > 63
* CRC - initial crc32
* return %eax crc32
* uint crc32_pmull_le(unsigned char const *buffer,
* size_t len, uint crc32)
*/
ENTRY(crc32_pmull_le)
adr x3, .Lcrc32_constants
b 0f
ENTRY(crc32c_pmull_le)
adr x3, .Lcrc32c_constants
0: bic LEN, LEN, #15
ld1 {v1.16b-v4.16b}, [BUF], #0x40
movi vzr.16b, #0
fmov dCONSTANT, CRC
eor v1.16b, v1.16b, vCONSTANT.16b
sub LEN, LEN, #0x40
cmp LEN, #0x40
b.lt less_64
ldr qCONSTANT, [x3]
loop_64: /* 64 bytes Full cache line folding */
sub LEN, LEN, #0x40
pmull2 v5.1q, v1.2d, vCONSTANT.2d
pmull2 v6.1q, v2.2d, vCONSTANT.2d
pmull2 v7.1q, v3.2d, vCONSTANT.2d
pmull2 v8.1q, v4.2d, vCONSTANT.2d
pmull v1.1q, v1.1d, vCONSTANT.1d
pmull v2.1q, v2.1d, vCONSTANT.1d
pmull v3.1q, v3.1d, vCONSTANT.1d
pmull v4.1q, v4.1d, vCONSTANT.1d
eor v1.16b, v1.16b, v5.16b
ld1 {v5.16b}, [BUF], #0x10
eor v2.16b, v2.16b, v6.16b
ld1 {v6.16b}, [BUF], #0x10
eor v3.16b, v3.16b, v7.16b
ld1 {v7.16b}, [BUF], #0x10
eor v4.16b, v4.16b, v8.16b
ld1 {v8.16b}, [BUF], #0x10
eor v1.16b, v1.16b, v5.16b
eor v2.16b, v2.16b, v6.16b
eor v3.16b, v3.16b, v7.16b
eor v4.16b, v4.16b, v8.16b
cmp LEN, #0x40
b.ge loop_64
less_64: /* Folding cache line into 128bit */
ldr qCONSTANT, [x3, #16]
pmull2 v5.1q, v1.2d, vCONSTANT.2d
pmull v1.1q, v1.1d, vCONSTANT.1d
eor v1.16b, v1.16b, v5.16b
eor v1.16b, v1.16b, v2.16b
pmull2 v5.1q, v1.2d, vCONSTANT.2d
pmull v1.1q, v1.1d, vCONSTANT.1d
eor v1.16b, v1.16b, v5.16b
eor v1.16b, v1.16b, v3.16b
pmull2 v5.1q, v1.2d, vCONSTANT.2d
pmull v1.1q, v1.1d, vCONSTANT.1d
eor v1.16b, v1.16b, v5.16b
eor v1.16b, v1.16b, v4.16b
cbz LEN, fold_64
loop_16: /* Folding rest buffer into 128bit */
subs LEN, LEN, #0x10
ld1 {v2.16b}, [BUF], #0x10
pmull2 v5.1q, v1.2d, vCONSTANT.2d
pmull v1.1q, v1.1d, vCONSTANT.1d
eor v1.16b, v1.16b, v5.16b
eor v1.16b, v1.16b, v2.16b
b.ne loop_16
fold_64:
/* perform the last 64 bit fold, also adds 32 zeroes
* to the input stream */
ext v2.16b, v1.16b, v1.16b, #8
pmull2 v2.1q, v2.2d, vCONSTANT.2d
ext v1.16b, v1.16b, vzr.16b, #8
eor v1.16b, v1.16b, v2.16b
/* final 32-bit fold */
ldr dCONSTANT, [x3, #32]
ldr d3, [x3, #40]
ext v2.16b, v1.16b, vzr.16b, #4
and v1.16b, v1.16b, v3.16b
pmull v1.1q, v1.1d, vCONSTANT.1d
eor v1.16b, v1.16b, v2.16b
/* Finish up with the bit-reversed barrett reduction 64 ==> 32 bits */
ldr qCONSTANT, [x3, #48]
and v2.16b, v1.16b, v3.16b
ext v2.16b, vzr.16b, v2.16b, #8
pmull2 v2.1q, v2.2d, vCONSTANT.2d
and v2.16b, v2.16b, v3.16b
pmull v2.1q, v2.1d, vCONSTANT.1d
eor v1.16b, v1.16b, v2.16b
mov w0, v1.s[1]
ret
ENDPROC(crc32_pmull_le)
ENDPROC(crc32c_pmull_le)
.macro __crc32, c
0: subs x2, x2, #16
b.mi 8f
ldp x3, x4, [x1], #16
CPU_BE( rev x3, x3 )
CPU_BE( rev x4, x4 )
crc32\c\()x w0, w0, x3
crc32\c\()x w0, w0, x4
b.ne 0b
ret
8: tbz x2, #3, 4f
ldr x3, [x1], #8
CPU_BE( rev x3, x3 )
crc32\c\()x w0, w0, x3
4: tbz x2, #2, 2f
ldr w3, [x1], #4
CPU_BE( rev w3, w3 )
crc32\c\()w w0, w0, w3
2: tbz x2, #1, 1f
ldrh w3, [x1], #2
CPU_BE( rev16 w3, w3 )
crc32\c\()h w0, w0, w3
1: tbz x2, #0, 0f
ldrb w3, [x1]
crc32\c\()b w0, w0, w3
0: ret
.endm
.align 5
ENTRY(crc32_armv8_le)
__crc32
ENDPROC(crc32_armv8_le)
.align 5
ENTRY(crc32c_armv8_le)
__crc32 c
ENDPROC(crc32c_armv8_le)

212
arch/arm64/crypto/crc32-ce-glue.c Normal file
View file

@ -0,0 +1,212 @@
/*
* Accelerated CRC32(C) using arm64 NEON and Crypto Extensions instructions
*
* Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/cpufeature.h>
#include <linux/crc32.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <crypto/internal/hash.h>
#include <asm/hwcap.h>
#include <asm/neon.h>
#include <asm/unaligned.h>
#define PMULL_MIN_LEN 64L /* minimum size of buffer
* for crc32_pmull_le_16 */
#define SCALE_F 16L /* size of NEON register */
asmlinkage u32 crc32_pmull_le(const u8 buf[], u64 len, u32 init_crc);
asmlinkage u32 crc32_armv8_le(u32 init_crc, const u8 buf[], size_t len);
asmlinkage u32 crc32c_pmull_le(const u8 buf[], u64 len, u32 init_crc);
asmlinkage u32 crc32c_armv8_le(u32 init_crc, const u8 buf[], size_t len);
static u32 (*fallback_crc32)(u32 init_crc, const u8 buf[], size_t len);
static u32 (*fallback_crc32c)(u32 init_crc, const u8 buf[], size_t len);
static int crc32_pmull_cra_init(struct crypto_tfm *tfm)
{
u32 *key = crypto_tfm_ctx(tfm);
*key = 0;
return 0;
}
static int crc32c_pmull_cra_init(struct crypto_tfm *tfm)
{
u32 *key = crypto_tfm_ctx(tfm);
*key = ~0;
return 0;
}
static int crc32_pmull_setkey(struct crypto_shash *hash, const u8 *key,
unsigned int keylen)
{
u32 *mctx = crypto_shash_ctx(hash);
if (keylen != sizeof(u32)) {
crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
*mctx = le32_to_cpup((__le32 *)key);
return 0;
}
static int crc32_pmull_init(struct shash_desc *desc)
{
u32 *mctx = crypto_shash_ctx(desc->tfm);
u32 *crc = shash_desc_ctx(desc);
*crc = *mctx;
return 0;
}
static int crc32_pmull_update(struct shash_desc *desc, const u8 *data,
unsigned int length)
{
u32 *crc = shash_desc_ctx(desc);
unsigned int l;
if ((u64)data % SCALE_F) {
l = min_t(u32, length, SCALE_F - ((u64)data % SCALE_F));
*crc = fallback_crc32(*crc, data, l);
data += l;
length -= l;
}
if (length >= PMULL_MIN_LEN) {
l = round_down(length, SCALE_F);
kernel_neon_begin_partial(10);
*crc = crc32_pmull_le(data, l, *crc);
kernel_neon_end();
data += l;
length -= l;
}
if (length > 0)
*crc = fallback_crc32(*crc, data, length);
return 0;
}
static int crc32c_pmull_update(struct shash_desc *desc, const u8 *data,
unsigned int length)
{
u32 *crc = shash_desc_ctx(desc);
unsigned int l;
if ((u64)data % SCALE_F) {
l = min_t(u32, length, SCALE_F - ((u64)data % SCALE_F));
*crc = fallback_crc32c(*crc, data, l);
data += l;
length -= l;
}
if (length >= PMULL_MIN_LEN) {
l = round_down(length, SCALE_F);
kernel_neon_begin_partial(10);
*crc = crc32c_pmull_le(data, l, *crc);
kernel_neon_end();
data += l;
length -= l;
}
if (length > 0) {
*crc = fallback_crc32c(*crc, data, length);
}
return 0;
}
static int crc32_pmull_final(struct shash_desc *desc, u8 *out)
{
u32 *crc = shash_desc_ctx(desc);
put_unaligned_le32(*crc, out);
return 0;
}
static int crc32c_pmull_final(struct shash_desc *desc, u8 *out)
{
u32 *crc = shash_desc_ctx(desc);
put_unaligned_le32(~*crc, out);
return 0;
}
static struct shash_alg crc32_pmull_algs[] = { {
.setkey = crc32_pmull_setkey,
.init = crc32_pmull_init,
.update = crc32_pmull_update,
.final = crc32_pmull_final,
.descsize = sizeof(u32),
.digestsize = sizeof(u32),
.base.cra_ctxsize = sizeof(u32),
.base.cra_init = crc32_pmull_cra_init,
.base.cra_name = "crc32",
.base.cra_driver_name = "crc32-arm64-ce",
.base.cra_priority = 200,
.base.cra_blocksize = 1,
.base.cra_module = THIS_MODULE,
}, {
.setkey = crc32_pmull_setkey,
.init = crc32_pmull_init,
.update = crc32c_pmull_update,
.final = crc32c_pmull_final,
.descsize = sizeof(u32),
.digestsize = sizeof(u32),
.base.cra_ctxsize = sizeof(u32),
.base.cra_init = crc32c_pmull_cra_init,
.base.cra_name = "crc32c",
.base.cra_driver_name = "crc32c-arm64-ce",
.base.cra_priority = 200,
.base.cra_blocksize = 1,
.base.cra_module = THIS_MODULE,
} };
static int __init crc32_pmull_mod_init(void)
{
if (elf_hwcap & HWCAP_CRC32) {
fallback_crc32 = crc32_armv8_le;
fallback_crc32c = crc32c_armv8_le;
} else {
fallback_crc32 = crc32_le;
fallback_crc32c = __crc32c_le;
}
return crypto_register_shashes(crc32_pmull_algs,
ARRAY_SIZE(crc32_pmull_algs));
}
static void __exit crc32_pmull_mod_exit(void)
{
crypto_unregister_shashes(crc32_pmull_algs,
ARRAY_SIZE(crc32_pmull_algs));
}
module_cpu_feature_match(PMULL, crc32_pmull_mod_init);
module_exit(crc32_pmull_mod_exit);
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");

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//
// Accelerated CRC-T10DIF using arm64 NEON and Crypto Extensions instructions
//
// Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
//
// Implement fast CRC-T10DIF computation with SSE and PCLMULQDQ instructions
//
// Copyright (c) 2013, Intel Corporation
//
// Authors:
// Erdinc Ozturk <erdinc.ozturk@intel.com>
// Vinodh Gopal <vinodh.gopal@intel.com>
// James Guilford <james.guilford@intel.com>
// Tim Chen <tim.c.chen@linux.intel.com>
//
// This software is available to you under a choice of one of two
// licenses. You may choose to be licensed under the terms of the GNU
// General Public License (GPL) Version 2, available from the file
// COPYING in the main directory of this source tree, or the
// OpenIB.org BSD license below:
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// * Neither the name of the Intel Corporation nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
//
// THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Function API:
// UINT16 crc_t10dif_pcl(
// UINT16 init_crc, //initial CRC value, 16 bits
// const unsigned char *buf, //buffer pointer to calculate CRC on
// UINT64 len //buffer length in bytes (64-bit data)
// );
//
// Reference paper titled "Fast CRC Computation for Generic
// Polynomials Using PCLMULQDQ Instruction"
// URL: http://www.intel.com/content/dam/www/public/us/en/documents
// /white-papers/fast-crc-computation-generic-polynomials-pclmulqdq-paper.pdf
//
//
#include <linux/linkage.h>
#include <asm/assembler.h>
.text
.cpu generic+crypto
arg1_low32 .req w0
arg2 .req x1
arg3 .req x2
vzr .req v13
ENTRY(crc_t10dif_pmull)
movi vzr.16b, #0 // init zero register
// adjust the 16-bit initial_crc value, scale it to 32 bits
lsl arg1_low32, arg1_low32, #16
// check if smaller than 256
cmp arg3, #256
// for sizes less than 128, we can't fold 64B at a time...
b.lt _less_than_128
// load the initial crc value
// crc value does not need to be byte-reflected, but it needs
// to be moved to the high part of the register.
// because data will be byte-reflected and will align with
// initial crc at correct place.
movi v10.16b, #0
mov v10.s[3], arg1_low32 // initial crc
// receive the initial 64B data, xor the initial crc value
ldp q0, q1, [arg2]
ldp q2, q3, [arg2, #0x20]
ldp q4, q5, [arg2, #0x40]
ldp q6, q7, [arg2, #0x60]
add arg2, arg2, #0x80
CPU_LE( rev64 v0.16b, v0.16b )
CPU_LE( rev64 v1.16b, v1.16b )
CPU_LE( rev64 v2.16b, v2.16b )
CPU_LE( rev64 v3.16b, v3.16b )
CPU_LE( rev64 v4.16b, v4.16b )
CPU_LE( rev64 v5.16b, v5.16b )
CPU_LE( rev64 v6.16b, v6.16b )
CPU_LE( rev64 v7.16b, v7.16b )
CPU_LE( ext v0.16b, v0.16b, v0.16b, #8 )
CPU_LE( ext v1.16b, v1.16b, v1.16b, #8 )
CPU_LE( ext v2.16b, v2.16b, v2.16b, #8 )
CPU_LE( ext v3.16b, v3.16b, v3.16b, #8 )
CPU_LE( ext v4.16b, v4.16b, v4.16b, #8 )
CPU_LE( ext v5.16b, v5.16b, v5.16b, #8 )
CPU_LE( ext v6.16b, v6.16b, v6.16b, #8 )
CPU_LE( ext v7.16b, v7.16b, v7.16b, #8 )
// XOR the initial_crc value
eor v0.16b, v0.16b, v10.16b
ldr q10, rk3 // xmm10 has rk3 and rk4
// type of pmull instruction
// will determine which constant to use
//
// we subtract 256 instead of 128 to save one instruction from the loop
//
sub arg3, arg3, #256
// at this section of the code, there is 64*x+y (0<=y<64) bytes of
// buffer. The _fold_64_B_loop will fold 64B at a time
// until we have 64+y Bytes of buffer
// fold 64B at a time. This section of the code folds 4 vector
// registers in parallel
_fold_64_B_loop:
.macro fold64, reg1, reg2
ldp q11, q12, [arg2], #0x20
pmull2 v8.1q, \reg1\().2d, v10.2d
pmull \reg1\().1q, \reg1\().1d, v10.1d
CPU_LE( rev64 v11.16b, v11.16b )
CPU_LE( rev64 v12.16b, v12.16b )
pmull2 v9.1q, \reg2\().2d, v10.2d
pmull \reg2\().1q, \reg2\().1d, v10.1d
CPU_LE( ext v11.16b, v11.16b, v11.16b, #8 )
CPU_LE( ext v12.16b, v12.16b, v12.16b, #8 )
eor \reg1\().16b, \reg1\().16b, v8.16b
eor \reg2\().16b, \reg2\().16b, v9.16b
eor \reg1\().16b, \reg1\().16b, v11.16b
eor \reg2\().16b, \reg2\().16b, v12.16b
.endm
fold64 v0, v1
fold64 v2, v3
fold64 v4, v5
fold64 v6, v7
subs arg3, arg3, #128
// check if there is another 64B in the buffer to be able to fold
b.ge _fold_64_B_loop
// at this point, the buffer pointer is pointing at the last y Bytes
// of the buffer the 64B of folded data is in 4 of the vector
// registers: v0, v1, v2, v3
// fold the 8 vector registers to 1 vector register with different
// constants
ldr q10, rk9
.macro fold16, reg, rk
pmull v8.1q, \reg\().1d, v10.1d
pmull2 \reg\().1q, \reg\().2d, v10.2d
.ifnb \rk
ldr q10, \rk
.endif
eor v7.16b, v7.16b, v8.16b
eor v7.16b, v7.16b, \reg\().16b
.endm
fold16 v0, rk11
fold16 v1, rk13
fold16 v2, rk15
fold16 v3, rk17
fold16 v4, rk19
fold16 v5, rk1
fold16 v6
// instead of 64, we add 48 to the loop counter to save 1 instruction
// from the loop instead of a cmp instruction, we use the negative
// flag with the jl instruction
adds arg3, arg3, #(128-16)
b.lt _final_reduction_for_128
// now we have 16+y bytes left to reduce. 16 Bytes is in register v7
// and the rest is in memory. We can fold 16 bytes at a time if y>=16
// continue folding 16B at a time
_16B_reduction_loop:
pmull v8.1q, v7.1d, v10.1d
pmull2 v7.1q, v7.2d, v10.2d
eor v7.16b, v7.16b, v8.16b
ldr q0, [arg2], #16
CPU_LE( rev64 v0.16b, v0.16b )
CPU_LE( ext v0.16b, v0.16b, v0.16b, #8 )
eor v7.16b, v7.16b, v0.16b
subs arg3, arg3, #16
// instead of a cmp instruction, we utilize the flags with the
// jge instruction equivalent of: cmp arg3, 16-16
// check if there is any more 16B in the buffer to be able to fold
b.ge _16B_reduction_loop
// now we have 16+z bytes left to reduce, where 0<= z < 16.
// first, we reduce the data in the xmm7 register
_final_reduction_for_128:
// check if any more data to fold. If not, compute the CRC of
// the final 128 bits
adds arg3, arg3, #16
b.eq _128_done
// here we are getting data that is less than 16 bytes.
// since we know that there was data before the pointer, we can
// offset the input pointer before the actual point, to receive
// exactly 16 bytes. after that the registers need to be adjusted.
_get_last_two_regs:
add arg2, arg2, arg3
ldr q1, [arg2, #-16]
CPU_LE( rev64 v1.16b, v1.16b )
CPU_LE( ext v1.16b, v1.16b, v1.16b, #8 )
// get rid of the extra data that was loaded before
// load the shift constant
adr x4, tbl_shf_table + 16
sub x4, x4, arg3
ld1 {v0.16b}, [x4]
// shift v2 to the left by arg3 bytes
tbl v2.16b, {v7.16b}, v0.16b
// shift v7 to the right by 16-arg3 bytes
movi v9.16b, #0x80
eor v0.16b, v0.16b, v9.16b
tbl v7.16b, {v7.16b}, v0.16b
// blend
sshr v0.16b, v0.16b, #7 // convert to 8-bit mask
bsl v0.16b, v2.16b, v1.16b
// fold 16 Bytes
pmull v8.1q, v7.1d, v10.1d
pmull2 v7.1q, v7.2d, v10.2d
eor v7.16b, v7.16b, v8.16b
eor v7.16b, v7.16b, v0.16b
_128_done:
// compute crc of a 128-bit value
ldr q10, rk5 // rk5 and rk6 in xmm10
// 64b fold
ext v0.16b, vzr.16b, v7.16b, #8
mov v7.d[0], v7.d[1]
pmull v7.1q, v7.1d, v10.1d
eor v7.16b, v7.16b, v0.16b
// 32b fold
ext v0.16b, v7.16b, vzr.16b, #4
mov v7.s[3], vzr.s[0]
pmull2 v0.1q, v0.2d, v10.2d
eor v7.16b, v7.16b, v0.16b
// barrett reduction
_barrett:
ldr q10, rk7
mov v0.d[0], v7.d[1]
pmull v0.1q, v0.1d, v10.1d
ext v0.16b, vzr.16b, v0.16b, #12
pmull2 v0.1q, v0.2d, v10.2d
ext v0.16b, vzr.16b, v0.16b, #12
eor v7.16b, v7.16b, v0.16b
mov w0, v7.s[1]
_cleanup:
// scale the result back to 16 bits
lsr x0, x0, #16
ret
_less_than_128:
cbz arg3, _cleanup
movi v0.16b, #0
mov v0.s[3], arg1_low32 // get the initial crc value
ldr q7, [arg2], #0x10
CPU_LE( rev64 v7.16b, v7.16b )
CPU_LE( ext v7.16b, v7.16b, v7.16b, #8 )
eor v7.16b, v7.16b, v0.16b // xor the initial crc value
cmp arg3, #16
b.eq _128_done // exactly 16 left
b.lt _less_than_16_left
ldr q10, rk1 // rk1 and rk2 in xmm10
// update the counter. subtract 32 instead of 16 to save one
// instruction from the loop
subs arg3, arg3, #32
b.ge _16B_reduction_loop
add arg3, arg3, #16
b _get_last_two_regs
_less_than_16_left:
// shl r9, 4
adr x0, tbl_shf_table + 16
sub x0, x0, arg3
ld1 {v0.16b}, [x0]
movi v9.16b, #0x80
eor v0.16b, v0.16b, v9.16b
tbl v7.16b, {v7.16b}, v0.16b
b _128_done
ENDPROC(crc_t10dif_pmull)
// precomputed constants
// these constants are precomputed from the poly:
// 0x8bb70000 (0x8bb7 scaled to 32 bits)
.align 4
// Q = 0x18BB70000
// rk1 = 2^(32*3) mod Q << 32
// rk2 = 2^(32*5) mod Q << 32
// rk3 = 2^(32*15) mod Q << 32
// rk4 = 2^(32*17) mod Q << 32
// rk5 = 2^(32*3) mod Q << 32
// rk6 = 2^(32*2) mod Q << 32
// rk7 = floor(2^64/Q)
// rk8 = Q
rk1: .octa 0x06df0000000000002d56000000000000
rk3: .octa 0x7cf50000000000009d9d000000000000
rk5: .octa 0x13680000000000002d56000000000000
rk7: .octa 0x000000018bb7000000000001f65a57f8
rk9: .octa 0xbfd6000000000000ceae000000000000
rk11: .octa 0x713c0000000000001e16000000000000
rk13: .octa 0x80a6000000000000f7f9000000000000
rk15: .octa 0xe658000000000000044c000000000000
rk17: .octa 0xa497000000000000ad18000000000000
rk19: .octa 0xe7b50000000000006ee3000000000000
tbl_shf_table:
// use these values for shift constants for the tbl/tbx instruction
// different alignments result in values as shown:
// DDQ 0x008f8e8d8c8b8a898887868584838281 # shl 15 (16-1) / shr1
// DDQ 0x01008f8e8d8c8b8a8988878685848382 # shl 14 (16-3) / shr2
// DDQ 0x0201008f8e8d8c8b8a89888786858483 # shl 13 (16-4) / shr3
// DDQ 0x030201008f8e8d8c8b8a898887868584 # shl 12 (16-4) / shr4
// DDQ 0x04030201008f8e8d8c8b8a8988878685 # shl 11 (16-5) / shr5
// DDQ 0x0504030201008f8e8d8c8b8a89888786 # shl 10 (16-6) / shr6
// DDQ 0x060504030201008f8e8d8c8b8a898887 # shl 9 (16-7) / shr7
// DDQ 0x07060504030201008f8e8d8c8b8a8988 # shl 8 (16-8) / shr8
// DDQ 0x0807060504030201008f8e8d8c8b8a89 # shl 7 (16-9) / shr9
// DDQ 0x090807060504030201008f8e8d8c8b8a # shl 6 (16-10) / shr10
// DDQ 0x0a090807060504030201008f8e8d8c8b # shl 5 (16-11) / shr11
// DDQ 0x0b0a090807060504030201008f8e8d8c # shl 4 (16-12) / shr12
// DDQ 0x0c0b0a090807060504030201008f8e8d # shl 3 (16-13) / shr13
// DDQ 0x0d0c0b0a090807060504030201008f8e # shl 2 (16-14) / shr14
// DDQ 0x0e0d0c0b0a090807060504030201008f # shl 1 (16-15) / shr15
.byte 0x0, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87
.byte 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f
.byte 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
.byte 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe , 0x0

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/*
* Accelerated CRC-T10DIF using arm64 NEON and Crypto Extensions instructions
*
* Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/cpufeature.h>
#include <linux/crc-t10dif.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <crypto/internal/hash.h>
#include <asm/neon.h>
#define CRC_T10DIF_PMULL_CHUNK_SIZE 16U
asmlinkage u16 crc_t10dif_pmull(u16 init_crc, const u8 buf[], u64 len);
static int crct10dif_init(struct shash_desc *desc)
{
u16 *crc = shash_desc_ctx(desc);
*crc = 0;
return 0;
}
static int crct10dif_update(struct shash_desc *desc, const u8 *data,
unsigned int length)
{
u16 *crc = shash_desc_ctx(desc);
unsigned int l;
if (unlikely((u64)data % CRC_T10DIF_PMULL_CHUNK_SIZE)) {
l = min_t(u32, length, CRC_T10DIF_PMULL_CHUNK_SIZE -
((u64)data % CRC_T10DIF_PMULL_CHUNK_SIZE));
*crc = crc_t10dif_generic(*crc, data, l);
length -= l;
data += l;
}
if (length > 0) {
kernel_neon_begin_partial(14);
*crc = crc_t10dif_pmull(*crc, data, length);
kernel_neon_end();
}
return 0;
}
static int crct10dif_final(struct shash_desc *desc, u8 *out)
{
u16 *crc = shash_desc_ctx(desc);
*(u16 *)out = *crc;
return 0;
}
static struct shash_alg crc_t10dif_alg = {
.digestsize = CRC_T10DIF_DIGEST_SIZE,
.init = crct10dif_init,
.update = crct10dif_update,
.final = crct10dif_final,
.descsize = CRC_T10DIF_DIGEST_SIZE,
.base.cra_name = "crct10dif",
.base.cra_driver_name = "crct10dif-arm64-ce",
.base.cra_priority = 200,
.base.cra_blocksize = CRC_T10DIF_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
};
static int __init crc_t10dif_mod_init(void)
{
return crypto_register_shash(&crc_t10dif_alg);
}
static void __exit crc_t10dif_mod_exit(void)
{
crypto_unregister_shash(&crc_t10dif_alg);
}
module_cpu_feature_match(PMULL, crc_t10dif_mod_init);
module_exit(crc_t10dif_mod_exit);
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");

6
arch/arm64/crypto/ghash-ce-core.S
View file

@ -29,8 +29,8 @@
* struct ghash_key const *k, const char *head)
*/
ENTRY(pmull_ghash_update)
ld1 {SHASH.16b}, [x3]
ld1 {XL.16b}, [x1]
ld1 {SHASH.2d}, [x3]
ld1 {XL.2d}, [x1]
movi MASK.16b, #0xe1
ext SHASH2.16b, SHASH.16b, SHASH.16b, #8
shl MASK.2d, MASK.2d, #57
@ -74,6 +74,6 @@ CPU_LE( rev64 T1.16b, T1.16b )
cbnz w0, 0b
st1 {XL.16b}, [x1]
st1 {XL.2d}, [x1]
ret
ENDPROC(pmull_ghash_update)

4
arch/arm64/crypto/sha1-ce-core.S
View file

@ -78,7 +78,7 @@ ENTRY(sha1_ce_transform)
ld1r {k3.4s}, [x6]
/* load state */
ldr dga, [x0]
ld1 {dgav.4s}, [x0]
ldr dgb, [x0, #16]
/* load sha1_ce_state::finalize */
@ -144,7 +144,7 @@ CPU_LE( rev32 v11.16b, v11.16b )
b 1b
/* store new state */
3: str dga, [x0]
3: st1 {dgav.4s}, [x0]
str dgb, [x0, #16]
ret
ENDPROC(sha1_ce_transform)

4
arch/arm64/crypto/sha2-ce-core.S
View file

@ -85,7 +85,7 @@ ENTRY(sha2_ce_transform)
ld1 {v12.4s-v15.4s}, [x8]
/* load state */
ldp dga, dgb, [x0]
ld1 {dgav.4s, dgbv.4s}, [x0]
/* load sha256_ce_state::finalize */
ldr w4, [x0, #:lo12:sha256_ce_offsetof_finalize]
@ -148,6 +148,6 @@ CPU_LE( rev32 v19.16b, v19.16b )
b 1b
/* store new state */
3: stp dga, dgb, [x0]
3: st1 {dgav.4s, dgbv.4s}, [x0]
ret
ENDPROC(sha2_ce_transform)

2061
arch/arm64/crypto/sha256-core.S_shipped Normal file
View file

File diff suppressed because it is too large Load diff

185
arch/arm64/crypto/sha256-glue.c Normal file
View file

@ -0,0 +1,185 @@
/*
* Linux/arm64 port of the OpenSSL SHA256 implementation for AArch64
*
* Copyright (c) 2016 Linaro Ltd. <ard.biesheuvel@linaro.org>
*
* 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/hwcap.h>
#include <asm/neon.h>
#include <asm/simd.h>
#include <crypto/internal/hash.h>
#include <crypto/sha.h>
#include <crypto/sha256_base.h>
#include <linux/cryptohash.h>
#include <linux/types.h>
#include <linux/string.h>
MODULE_DESCRIPTION("SHA-224/SHA-256 secure hash for arm64");
MODULE_AUTHOR("Andy Polyakov <appro@openssl.org>");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS_CRYPTO("sha224");
MODULE_ALIAS_CRYPTO("sha256");
asmlinkage void sha256_block_data_order(u32 *digest, const void *data,
unsigned int num_blks);
asmlinkage void sha256_block_neon(u32 *digest, const void *data,
unsigned int num_blks);
static int sha256_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_data_order);
}
static int sha256_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
if (len)
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_data_order);
sha256_base_do_finalize(desc,
(sha256_block_fn *)sha256_block_data_order);
return sha256_base_finish(desc, out);
}
static int sha256_final(struct shash_desc *desc, u8 *out)
{
return sha256_finup(desc, NULL, 0, out);
}
static struct shash_alg algs[] = { {
.digestsize = SHA256_DIGEST_SIZE,
.init = sha256_base_init,
.update = sha256_update,
.final = sha256_final,
.finup = sha256_finup,
.descsize = sizeof(struct sha256_state),
.base.cra_name = "sha256",
.base.cra_driver_name = "sha256-arm64",
.base.cra_priority = 100,
.base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.base.cra_blocksize = SHA256_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
}, {
.digestsize = SHA224_DIGEST_SIZE,
.init = sha224_base_init,
.update = sha256_update,
.final = sha256_final,
.finup = sha256_finup,
.descsize = sizeof(struct sha256_state),
.base.cra_name = "sha224",
.base.cra_driver_name = "sha224-arm64",
.base.cra_priority = 100,
.base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.base.cra_blocksize = SHA224_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
} };
static int sha256_update_neon(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
/*
* Stacking and unstacking a substantial slice of the NEON register
* file may significantly affect performance for small updates when
* executing in interrupt context, so fall back to the scalar code
* in that case.
*/
if (!may_use_simd())
return sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_data_order);
kernel_neon_begin();
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_neon);
kernel_neon_end();
return 0;
}
static int sha256_finup_neon(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
if (!may_use_simd()) {
if (len)
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_data_order);
sha256_base_do_finalize(desc,
(sha256_block_fn *)sha256_block_data_order);
} else {
kernel_neon_begin();
if (len)
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_neon);
sha256_base_do_finalize(desc,
(sha256_block_fn *)sha256_block_neon);
kernel_neon_end();
}
return sha256_base_finish(desc, out);
}
static int sha256_final_neon(struct shash_desc *desc, u8 *out)
{
return sha256_finup_neon(desc, NULL, 0, out);
}
static struct shash_alg neon_algs[] = { {
.digestsize = SHA256_DIGEST_SIZE,
.init = sha256_base_init,
.update = sha256_update_neon,
.final = sha256_final_neon,
.finup = sha256_finup_neon,
.descsize = sizeof(struct sha256_state),
.base.cra_name = "sha256",
.base.cra_driver_name = "sha256-arm64-neon",
.base.cra_priority = 150,
.base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.base.cra_blocksize = SHA256_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
}, {
.digestsize = SHA224_DIGEST_SIZE,
.init = sha224_base_init,
.update = sha256_update_neon,
.final = sha256_final_neon,
.finup = sha256_finup_neon,
.descsize = sizeof(struct sha256_state),
.base.cra_name = "sha224",
.base.cra_driver_name = "sha224-arm64-neon",
.base.cra_priority = 150,
.base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.base.cra_blocksize = SHA224_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
} };
static int __init sha256_mod_init(void)
{
int ret = crypto_register_shashes(algs, ARRAY_SIZE(algs));
if (ret)
return ret;
if (elf_hwcap & HWCAP_ASIMD) {
ret = crypto_register_shashes(neon_algs, ARRAY_SIZE(neon_algs));
if (ret)
crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
}
return ret;
}
static void __exit sha256_mod_fini(void)
{
if (elf_hwcap & HWCAP_ASIMD)
crypto_unregister_shashes(neon_algs, ARRAY_SIZE(neon_algs));
crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
}
module_init(sha256_mod_init);
module_exit(sha256_mod_fini);

778
arch/arm64/crypto/sha512-armv8.pl Normal file
View file

@ -0,0 +1,778 @@
#! /usr/bin/env perl
# Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
# ====================================================================
# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
#
# Permission to use under GPLv2 terms is granted.
# ====================================================================
#
# SHA256/512 for ARMv8.
#
# Performance in cycles per processed byte and improvement coefficient
# over code generated with "default" compiler:
#
# SHA256-hw SHA256(*) SHA512
# Apple A7 1.97 10.5 (+33%) 6.73 (-1%(**))
# Cortex-A53 2.38 15.5 (+115%) 10.0 (+150%(***))
# Cortex-A57 2.31 11.6 (+86%) 7.51 (+260%(***))
# Denver 2.01 10.5 (+26%) 6.70 (+8%)
# X-Gene 20.0 (+100%) 12.8 (+300%(***))
# Mongoose 2.36 13.0 (+50%) 8.36 (+33%)
#
# (*) Software SHA256 results are of lesser relevance, presented
# mostly for informational purposes.
# (**) The result is a trade-off: it's possible to improve it by
# 10% (or by 1 cycle per round), but at the cost of 20% loss
# on Cortex-A53 (or by 4 cycles per round).
# (***) Super-impressive coefficients over gcc-generated code are
# indication of some compiler "pathology", most notably code
# generated with -mgeneral-regs-only is significanty faster
# and the gap is only 40-90%.
#
# October 2016.
#
# Originally it was reckoned that it makes no sense to implement NEON
# version of SHA256 for 64-bit processors. This is because performance
# improvement on most wide-spread Cortex-A5x processors was observed
# to be marginal, same on Cortex-A53 and ~10% on A57. But then it was
# observed that 32-bit NEON SHA256 performs significantly better than
# 64-bit scalar version on *some* of the more recent processors. As
# result 64-bit NEON version of SHA256 was added to provide best
# all-round performance. For example it executes ~30% faster on X-Gene
# and Mongoose. [For reference, NEON version of SHA512 is bound to
# deliver much less improvement, likely *negative* on Cortex-A5x.
# Which is why NEON support is limited to SHA256.]
$output=pop;
$flavour=pop;
if ($flavour && $flavour ne "void") {
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
die "can't locate arm-xlate.pl";
open OUT,"| \"$^X\" $xlate $flavour $output";
*STDOUT=*OUT;
} else {
open STDOUT,">$output";
}
if ($output =~ /512/) {
$BITS=512;
$SZ=8;
@Sigma0=(28,34,39);
@Sigma1=(14,18,41);
@sigma0=(1, 8, 7);
@sigma1=(19,61, 6);
$rounds=80;
$reg_t="x";
} else {
$BITS=256;
$SZ=4;
@Sigma0=( 2,13,22);
@Sigma1=( 6,11,25);
@sigma0=( 7,18, 3);
@sigma1=(17,19,10);
$rounds=64;
$reg_t="w";
}
$func="sha${BITS}_block_data_order";
($ctx,$inp,$num,$Ktbl)=map("x$_",(0..2,30));
@X=map("$reg_t$_",(3..15,0..2));
@V=($A,$B,$C,$D,$E,$F,$G,$H)=map("$reg_t$_",(20..27));
($t0,$t1,$t2,$t3)=map("$reg_t$_",(16,17,19,28));
sub BODY_00_xx {
my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
my $j=($i+1)&15;
my ($T0,$T1,$T2)=(@X[($i-8)&15],@X[($i-9)&15],@X[($i-10)&15]);
$T0=@X[$i+3] if ($i<11);
$code.=<<___ if ($i<16);
#ifndef __AARCH64EB__
rev @X[$i],@X[$i] // $i
#endif
___
$code.=<<___ if ($i<13 && ($i&1));
ldp @X[$i+1],@X[$i+2],[$inp],#2*$SZ
___
$code.=<<___ if ($i==13);
ldp @X[14],@X[15],[$inp]
___
$code.=<<___ if ($i>=14);
ldr @X[($i-11)&15],[sp,#`$SZ*(($i-11)%4)`]
___
$code.=<<___ if ($i>0 && $i<16);
add $a,$a,$t1 // h+=Sigma0(a)
___
$code.=<<___ if ($i>=11);
str @X[($i-8)&15],[sp,#`$SZ*(($i-8)%4)`]
___
# While ARMv8 specifies merged rotate-n-logical operation such as
# 'eor x,y,z,ror#n', it was found to negatively affect performance
# on Apple A7. The reason seems to be that it requires even 'y' to
# be available earlier. This means that such merged instruction is
# not necessarily best choice on critical path... On the other hand
# Cortex-A5x handles merged instructions much better than disjoint
# rotate and logical... See (**) footnote above.
$code.=<<___ if ($i<15);
ror $t0,$e,#$Sigma1[0]
add $h,$h,$t2 // h+=K[i]
eor $T0,$e,$e,ror#`$Sigma1[2]-$Sigma1[1]`
and $t1,$f,$e
bic $t2,$g,$e
add $h,$h,@X[$i&15] // h+=X[i]
orr $t1,$t1,$t2 // Ch(e,f,g)
eor $t2,$a,$b // a^b, b^c in next round
eor $t0,$t0,$T0,ror#$Sigma1[1] // Sigma1(e)
ror $T0,$a,#$Sigma0[0]
add $h,$h,$t1 // h+=Ch(e,f,g)
eor $t1,$a,$a,ror#`$Sigma0[2]-$Sigma0[1]`
add $h,$h,$t0 // h+=Sigma1(e)
and $t3,$t3,$t2 // (b^c)&=(a^b)
add $d,$d,$h // d+=h
eor $t3,$t3,$b // Maj(a,b,c)
eor $t1,$T0,$t1,ror#$Sigma0[1] // Sigma0(a)
add $h,$h,$t3 // h+=Maj(a,b,c)
ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round
//add $h,$h,$t1 // h+=Sigma0(a)
___
$code.=<<___ if ($i>=15);
ror $t0,$e,#$Sigma1[0]
add $h,$h,$t2 // h+=K[i]
ror $T1,@X[($j+1)&15],#$sigma0[0]
and $t1,$f,$e
ror $T2,@X[($j+14)&15],#$sigma1[0]
bic $t2,$g,$e
ror $T0,$a,#$Sigma0[0]
add $h,$h,@X[$i&15] // h+=X[i]
eor $t0,$t0,$e,ror#$Sigma1[1]
eor $T1,$T1,@X[($j+1)&15],ror#$sigma0[1]
orr $t1,$t1,$t2 // Ch(e,f,g)
eor $t2,$a,$b // a^b, b^c in next round
eor $t0,$t0,$e,ror#$Sigma1[2] // Sigma1(e)
eor $T0,$T0,$a,ror#$Sigma0[1]
add $h,$h,$t1 // h+=Ch(e,f,g)
and $t3,$t3,$t2 // (b^c)&=(a^b)
eor $T2,$T2,@X[($j+14)&15],ror#$sigma1[1]
eor $T1,$T1,@X[($j+1)&15],lsr#$sigma0[2] // sigma0(X[i+1])
add $h,$h,$t0 // h+=Sigma1(e)
eor $t3,$t3,$b // Maj(a,b,c)
eor $t1,$T0,$a,ror#$Sigma0[2] // Sigma0(a)
eor $T2,$T2,@X[($j+14)&15],lsr#$sigma1[2] // sigma1(X[i+14])
add @X[$j],@X[$j],@X[($j+9)&15]
add $d,$d,$h // d+=h
add $h,$h,$t3 // h+=Maj(a,b,c)
ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round
add @X[$j],@X[$j],$T1
add $h,$h,$t1 // h+=Sigma0(a)
add @X[$j],@X[$j],$T2
___
($t2,$t3)=($t3,$t2);
}
$code.=<<___;
#ifndef __KERNEL__
# include "arm_arch.h"
#endif
.text
.extern OPENSSL_armcap_P
.globl $func
.type $func,%function
.align 6
$func:
___
$code.=<<___ if ($SZ==4);
#ifndef __KERNEL__
# ifdef __ILP32__
ldrsw x16,.LOPENSSL_armcap_P
# else
ldr x16,.LOPENSSL_armcap_P
# endif
adr x17,.LOPENSSL_armcap_P
add x16,x16,x17
ldr w16,[x16]
tst w16,#ARMV8_SHA256
b.ne .Lv8_entry
tst w16,#ARMV7_NEON
b.ne .Lneon_entry
#endif
___
$code.=<<___;
stp x29,x30,[sp,#-128]!
add x29,sp,#0
stp x19,x20,[sp,#16]
stp x21,x22,[sp,#32]
stp x23,x24,[sp,#48]
stp x25,x26,[sp,#64]
stp x27,x28,[sp,#80]
sub sp,sp,#4*$SZ
ldp $A,$B,[$ctx] // load context
ldp $C,$D,[$ctx,#2*$SZ]
ldp $E,$F,[$ctx,#4*$SZ]
add $num,$inp,$num,lsl#`log(16*$SZ)/log(2)` // end of input
ldp $G,$H,[$ctx,#6*$SZ]
adr $Ktbl,.LK$BITS
stp $ctx,$num,[x29,#96]
.Loop:
ldp @X[0],@X[1],[$inp],#2*$SZ
ldr $t2,[$Ktbl],#$SZ // *K++
eor $t3,$B,$C // magic seed
str $inp,[x29,#112]
___
for ($i=0;$i<16;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); }
$code.=".Loop_16_xx:\n";
for (;$i<32;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); }
$code.=<<___;
cbnz $t2,.Loop_16_xx
ldp $ctx,$num,[x29,#96]
ldr $inp,[x29,#112]
sub $Ktbl,$Ktbl,#`$SZ*($rounds+1)` // rewind
ldp @X[0],@X[1],[$ctx]
ldp @X[2],@X[3],[$ctx,#2*$SZ]
add $inp,$inp,#14*$SZ // advance input pointer
ldp @X[4],@X[5],[$ctx,#4*$SZ]
add $A,$A,@X[0]
ldp @X[6],@X[7],[$ctx,#6*$SZ]
add $B,$B,@X[1]
add $C,$C,@X[2]
add $D,$D,@X[3]
stp $A,$B,[$ctx]
add $E,$E,@X[4]
add $F,$F,@X[5]
stp $C,$D,[$ctx,#2*$SZ]
add $G,$G,@X[6]
add $H,$H,@X[7]
cmp $inp,$num
stp $E,$F,[$ctx,#4*$SZ]
stp $G,$H,[$ctx,#6*$SZ]
b.ne .Loop
ldp x19,x20,[x29,#16]
add sp,sp,#4*$SZ
ldp x21,x22,[x29,#32]
ldp x23,x24,[x29,#48]
ldp x25,x26,[x29,#64]
ldp x27,x28,[x29,#80]
ldp x29,x30,[sp],#128
ret
.size $func,.-$func
.align 6
.type .LK$BITS,%object
.LK$BITS:
___
$code.=<<___ if ($SZ==8);
.quad 0x428a2f98d728ae22,0x7137449123ef65cd
.quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
.quad 0x3956c25bf348b538,0x59f111f1b605d019
.quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
.quad 0xd807aa98a3030242,0x12835b0145706fbe
.quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
.quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
.quad 0x9bdc06a725c71235,0xc19bf174cf692694
.quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
.quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
.quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
.quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
.quad 0x983e5152ee66dfab,0xa831c66d2db43210
.quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
.quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
.quad 0x06ca6351e003826f,0x142929670a0e6e70
.quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
.quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
.quad 0x650a73548baf63de,0x766a0abb3c77b2a8
.quad 0x81c2c92e47edaee6,0x92722c851482353b
.quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
.quad 0xc24b8b70d0f89791,0xc76c51a30654be30
.quad 0xd192e819d6ef5218,0xd69906245565a910
.quad 0xf40e35855771202a,0x106aa07032bbd1b8
.quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
.quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
.quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
.quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
.quad 0x748f82ee5defb2fc,0x78a5636f43172f60
.quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
.quad 0x90befffa23631e28,0xa4506cebde82bde9
.quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
.quad 0xca273eceea26619c,0xd186b8c721c0c207
.quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
.quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
.quad 0x113f9804bef90dae,0x1b710b35131c471b
.quad 0x28db77f523047d84,0x32caab7b40c72493
.quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
.quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
.quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
.quad 0 // terminator
___
$code.=<<___ if ($SZ==4);
.long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
.long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
.long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
.long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
.long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
.long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
.long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
.long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
.long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
.long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
.long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
.long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
.long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
.long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
.long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
.long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
.long 0 //terminator
___
$code.=<<___;
.size .LK$BITS,.-.LK$BITS
#ifndef __KERNEL__
.align 3
.LOPENSSL_armcap_P:
# ifdef __ILP32__
.long OPENSSL_armcap_P-.
# else
.quad OPENSSL_armcap_P-.
# endif
#endif
.asciz "SHA$BITS block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
.align 2
___
if ($SZ==4) {
my $Ktbl="x3";
my ($ABCD,$EFGH,$abcd)=map("v$_.16b",(0..2));
my @MSG=map("v$_.16b",(4..7));
my ($W0,$W1)=("v16.4s","v17.4s");
my ($ABCD_SAVE,$EFGH_SAVE)=("v18.16b","v19.16b");
$code.=<<___;
#ifndef __KERNEL__
.type sha256_block_armv8,%function
.align 6
sha256_block_armv8:
.Lv8_entry:
stp x29,x30,[sp,#-16]!
add x29,sp,#0
ld1.32 {$ABCD,$EFGH},[$ctx]
adr $Ktbl,.LK256
.Loop_hw:
ld1 {@MSG[0]-@MSG[3]},[$inp],#64
sub $num,$num,#1
ld1.32 {$W0},[$Ktbl],#16
rev32 @MSG[0],@MSG[0]
rev32 @MSG[1],@MSG[1]
rev32 @MSG[2],@MSG[2]
rev32 @MSG[3],@MSG[3]
orr $ABCD_SAVE,$ABCD,$ABCD // offload
orr $EFGH_SAVE,$EFGH,$EFGH
___
for($i=0;$i<12;$i++) {
$code.=<<___;
ld1.32 {$W1},[$Ktbl],#16
add.i32 $W0,$W0,@MSG[0]
sha256su0 @MSG[0],@MSG[1]
orr $abcd,$ABCD,$ABCD
sha256h $ABCD,$EFGH,$W0
sha256h2 $EFGH,$abcd,$W0
sha256su1 @MSG[0],@MSG[2],@MSG[3]
___
($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG));
}
$code.=<<___;
ld1.32 {$W1},[$Ktbl],#16
add.i32 $W0,$W0,@MSG[0]
orr $abcd,$ABCD,$ABCD
sha256h $ABCD,$EFGH,$W0
sha256h2 $EFGH,$abcd,$W0
ld1.32 {$W0},[$Ktbl],#16
add.i32 $W1,$W1,@MSG[1]
orr $abcd,$ABCD,$ABCD
sha256h $ABCD,$EFGH,$W1
sha256h2 $EFGH,$abcd,$W1
ld1.32 {$W1},[$Ktbl]
add.i32 $W0,$W0,@MSG[2]
sub $Ktbl,$Ktbl,#$rounds*$SZ-16 // rewind
orr $abcd,$ABCD,$ABCD
sha256h $ABCD,$EFGH,$W0
sha256h2 $EFGH,$abcd,$W0
add.i32 $W1,$W1,@MSG[3]
orr $abcd,$ABCD,$ABCD
sha256h $ABCD,$EFGH,$W1
sha256h2 $EFGH,$abcd,$W1
add.i32 $ABCD,$ABCD,$ABCD_SAVE
add.i32 $EFGH,$EFGH,$EFGH_SAVE
cbnz $num,.Loop_hw
st1.32 {$ABCD,$EFGH},[$ctx]
ldr x29,[sp],#16
ret
.size sha256_block_armv8,.-sha256_block_armv8
#endif
___
}
if ($SZ==4) { ######################################### NEON stuff #
# You'll surely note a lot of similarities with sha256-armv4 module,
# and of course it's not a coincidence. sha256-armv4 was used as
# initial template, but was adapted for ARMv8 instruction set and
# extensively re-tuned for all-round performance.
my @V = ($A,$B,$C,$D,$E,$F,$G,$H) = map("w$_",(3..10));
my ($t0,$t1,$t2,$t3,$t4) = map("w$_",(11..15));
my $Ktbl="x16";
my $Xfer="x17";
my @X = map("q$_",(0..3));
my ($T0,$T1,$T2,$T3,$T4,$T5,$T6,$T7) = map("q$_",(4..7,16..19));
my $j=0;
sub AUTOLOAD() # thunk [simplified] x86-style perlasm
{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./;
my $arg = pop;
$arg = "#$arg" if ($arg*1 eq $arg);
$code .= "\t$opcode\t".join(',',@_,$arg)."\n";
}
sub Dscalar { shift =~ m|[qv]([0-9]+)|?"d$1":""; }
sub Dlo { shift =~ m|[qv]([0-9]+)|?"v$1.d[0]":""; }
sub Dhi { shift =~ m|[qv]([0-9]+)|?"v$1.d[1]":""; }
sub Xupdate()
{ use integer;
my $body = shift;
my @insns = (&$body,&$body,&$body,&$body);
my ($a,$b,$c,$d,$e,$f,$g,$h);
&ext_8 ($T0,@X[0],@X[1],4); # X[1..4]
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&ext_8 ($T3,@X[2],@X[3],4); # X[9..12]
eval(shift(@insns));
eval(shift(@insns));
&mov (&Dscalar($T7),&Dhi(@X[3])); # X[14..15]
eval(shift(@insns));
eval(shift(@insns));
&ushr_32 ($T2,$T0,$sigma0[0]);
eval(shift(@insns));
&ushr_32 ($T1,$T0,$sigma0[2]);
eval(shift(@insns));
&add_32 (@X[0],@X[0],$T3); # X[0..3] += X[9..12]
eval(shift(@insns));
&sli_32 ($T2,$T0,32-$sigma0[0]);
eval(shift(@insns));
eval(shift(@insns));
&ushr_32 ($T3,$T0,$sigma0[1]);
eval(shift(@insns));
eval(shift(@insns));
&eor_8 ($T1,$T1,$T2);
eval(shift(@insns));
eval(shift(@insns));
&sli_32 ($T3,$T0,32-$sigma0[1]);
eval(shift(@insns));
eval(shift(@insns));
&ushr_32 ($T4,$T7,$sigma1[0]);
eval(shift(@insns));
eval(shift(@insns));
&eor_8 ($T1,$T1,$T3); # sigma0(X[1..4])
eval(shift(@insns));
eval(shift(@insns));
&sli_32 ($T4,$T7,32-$sigma1[0]);
eval(shift(@insns));
eval(shift(@insns));
&ushr_32 ($T5,$T7,$sigma1[2]);
eval(shift(@insns));
eval(shift(@insns));
&ushr_32 ($T3,$T7,$sigma1[1]);
eval(shift(@insns));
eval(shift(@insns));
&add_32 (@X[0],@X[0],$T1); # X[0..3] += sigma0(X[1..4])
eval(shift(@insns));
eval(shift(@insns));
&sli_u32 ($T3,$T7,32-$sigma1[1]);
eval(shift(@insns));
eval(shift(@insns));
&eor_8 ($T5,$T5,$T4);
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&eor_8 ($T5,$T5,$T3); # sigma1(X[14..15])
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&add_32 (@X[0],@X[0],$T5); # X[0..1] += sigma1(X[14..15])
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&ushr_32 ($T6,@X[0],$sigma1[0]);
eval(shift(@insns));
&ushr_32 ($T7,@X[0],$sigma1[2]);
eval(shift(@insns));
eval(shift(@insns));
&sli_32 ($T6,@X[0],32-$sigma1[0]);
eval(shift(@insns));
&ushr_32 ($T5,@X[0],$sigma1[1]);
eval(shift(@insns));
eval(shift(@insns));
&eor_8 ($T7,$T7,$T6);
eval(shift(@insns));
eval(shift(@insns));
&sli_32 ($T5,@X[0],32-$sigma1[1]);
eval(shift(@insns));
eval(shift(@insns));
&ld1_32 ("{$T0}","[$Ktbl], #16");
eval(shift(@insns));
&eor_8 ($T7,$T7,$T5); # sigma1(X[16..17])
eval(shift(@insns));
eval(shift(@insns));
&eor_8 ($T5,$T5,$T5);
eval(shift(@insns));
eval(shift(@insns));
&mov (&Dhi($T5), &Dlo($T7));
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&add_32 (@X[0],@X[0],$T5); # X[2..3] += sigma1(X[16..17])
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&add_32 ($T0,$T0,@X[0]);
while($#insns>=1) { eval(shift(@insns)); }
&st1_32 ("{$T0}","[$Xfer], #16");
eval(shift(@insns));
push(@X,shift(@X)); # "rotate" X[]
}
sub Xpreload()
{ use integer;
my $body = shift;
my @insns = (&$body,&$body,&$body,&$body);
my ($a,$b,$c,$d,$e,$f,$g,$h);
eval(shift(@insns));
eval(shift(@insns));
&ld1_8 ("{@X[0]}","[$inp],#16");
eval(shift(@insns));
eval(shift(@insns));
&ld1_32 ("{$T0}","[$Ktbl],#16");
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&rev32 (@X[0],@X[0]);
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
eval(shift(@insns));
&add_32 ($T0,$T0,@X[0]);
foreach (@insns) { eval; } # remaining instructions
&st1_32 ("{$T0}","[$Xfer], #16");
push(@X,shift(@X)); # "rotate" X[]
}
sub body_00_15 () {
(
'($a,$b,$c,$d,$e,$f,$g,$h)=@V;'.
'&add ($h,$h,$t1)', # h+=X[i]+K[i]
'&add ($a,$a,$t4);'. # h+=Sigma0(a) from the past
'&and ($t1,$f,$e)',
'&bic ($t4,$g,$e)',
'&eor ($t0,$e,$e,"ror#".($Sigma1[1]-$Sigma1[0]))',
'&add ($a,$a,$t2)', # h+=Maj(a,b,c) from the past
'&orr ($t1,$t1,$t4)', # Ch(e,f,g)
'&eor ($t0,$t0,$e,"ror#".($Sigma1[2]-$Sigma1[0]))', # Sigma1(e)
'&eor ($t4,$a,$a,"ror#".($Sigma0[1]-$Sigma0[0]))',
'&add ($h,$h,$t1)', # h+=Ch(e,f,g)
'&ror ($t0,$t0,"#$Sigma1[0]")',
'&eor ($t2,$a,$b)', # a^b, b^c in next round
'&eor ($t4,$t4,$a,"ror#".($Sigma0[2]-$Sigma0[0]))', # Sigma0(a)
'&add ($h,$h,$t0)', # h+=Sigma1(e)
'&ldr ($t1,sprintf "[sp,#%d]",4*(($j+1)&15)) if (($j&15)!=15);'.
'&ldr ($t1,"[$Ktbl]") if ($j==15);'.
'&and ($t3,$t3,$t2)', # (b^c)&=(a^b)
'&ror ($t4,$t4,"#$Sigma0[0]")',
'&add ($d,$d,$h)', # d+=h
'&eor ($t3,$t3,$b)', # Maj(a,b,c)
'$j++; unshift(@V,pop(@V)); ($t2,$t3)=($t3,$t2);'
)
}
$code.=<<___;
#ifdef __KERNEL__
.globl sha256_block_neon
#endif
.type sha256_block_neon,%function
.align 4
sha256_block_neon:
.Lneon_entry:
stp x29, x30, [sp, #-16]!
mov x29, sp
sub sp,sp,#16*4
adr $Ktbl,.LK256
add $num,$inp,$num,lsl#6 // len to point at the end of inp
ld1.8 {@X[0]},[$inp], #16
ld1.8 {@X[1]},[$inp], #16
ld1.8 {@X[2]},[$inp], #16
ld1.8 {@X[3]},[$inp], #16
ld1.32 {$T0},[$Ktbl], #16
ld1.32 {$T1},[$Ktbl], #16
ld1.32 {$T2},[$Ktbl], #16
ld1.32 {$T3},[$Ktbl], #16
rev32 @X[0],@X[0] // yes, even on
rev32 @X[1],@X[1] // big-endian
rev32 @X[2],@X[2]
rev32 @X[3],@X[3]
mov $Xfer,sp
add.32 $T0,$T0,@X[0]
add.32 $T1,$T1,@X[1]
add.32 $T2,$T2,@X[2]
st1.32 {$T0-$T1},[$Xfer], #32
add.32 $T3,$T3,@X[3]
st1.32 {$T2-$T3},[$Xfer]
sub $Xfer,$Xfer,#32
ldp $A,$B,[$ctx]
ldp $C,$D,[$ctx,#8]
ldp $E,$F,[$ctx,#16]
ldp $G,$H,[$ctx,#24]
ldr $t1,[sp,#0]
mov $t2,wzr
eor $t3,$B,$C
mov $t4,wzr
b .L_00_48
.align 4
.L_00_48:
___
&Xupdate(\&body_00_15);
&Xupdate(\&body_00_15);
&Xupdate(\&body_00_15);
&Xupdate(\&body_00_15);
$code.=<<___;
cmp $t1,#0 // check for K256 terminator
ldr $t1,[sp,#0]
sub $Xfer,$Xfer,#64
bne .L_00_48
sub $Ktbl,$Ktbl,#256 // rewind $Ktbl
cmp $inp,$num
mov $Xfer, #64
csel $Xfer, $Xfer, xzr, eq
sub $inp,$inp,$Xfer // avoid SEGV
mov $Xfer,sp
___
&Xpreload(\&body_00_15);
&Xpreload(\&body_00_15);
&Xpreload(\&body_00_15);
&Xpreload(\&body_00_15);
$code.=<<___;
add $A,$A,$t4 // h+=Sigma0(a) from the past
ldp $t0,$t1,[$ctx,#0]
add $A,$A,$t2 // h+=Maj(a,b,c) from the past
ldp $t2,$t3,[$ctx,#8]
add $A,$A,$t0 // accumulate
add $B,$B,$t1
ldp $t0,$t1,[$ctx,#16]
add $C,$C,$t2
add $D,$D,$t3
ldp $t2,$t3,[$ctx,#24]
add $E,$E,$t0
add $F,$F,$t1
ldr $t1,[sp,#0]
stp $A,$B,[$ctx,#0]
add $G,$G,$t2
mov $t2,wzr
stp $C,$D,[$ctx,#8]
add $H,$H,$t3
stp $E,$F,[$ctx,#16]
eor $t3,$B,$C
stp $G,$H,[$ctx,#24]
mov $t4,wzr
mov $Xfer,sp
b.ne .L_00_48
ldr x29,[x29]
add sp,sp,#16*4+16
ret
.size sha256_block_neon,.-sha256_block_neon
___
}
$code.=<<___;
#ifndef __KERNEL__
.comm OPENSSL_armcap_P,4,4
#endif
___
{ my %opcode = (
"sha256h" => 0x5e004000, "sha256h2" => 0x5e005000,
"sha256su0" => 0x5e282800, "sha256su1" => 0x5e006000 );
sub unsha256 {
my ($mnemonic,$arg)=@_;
$arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o
&&
sprintf ".inst\t0x%08x\t//%s %s",
$opcode{$mnemonic}|$1|($2<<5)|($3<<16),
$mnemonic,$arg;
}
}
open SELF,$0;
while(<SELF>) {
next if (/^#!/);
last if (!s/^#/\/\// and !/^$/);
print;
}
close SELF;
foreach(split("\n",$code)) {
s/\`([^\`]*)\`/eval($1)/ge;
s/\b(sha256\w+)\s+([qv].*)/unsha256($1,$2)/ge;
s/\bq([0-9]+)\b/v$1.16b/g; # old->new registers
s/\.[ui]?8(\s)/$1/;
s/\.\w?32\b// and s/\.16b/\.4s/g;
m/(ld|st)1[^\[]+\[0\]/ and s/\.4s/\.s/g;
print $_,"\n";
}
close STDOUT;

1085
arch/arm64/crypto/sha512-core.S_shipped Normal file
View file

File diff suppressed because it is too large Load diff

94
arch/arm64/crypto/sha512-glue.c Normal file
View file

@ -0,0 +1,94 @@
/*
* Linux/arm64 port of the OpenSSL SHA512 implementation for AArch64
*
* Copyright (c) 2016 Linaro Ltd. <ard.biesheuvel@linaro.org>
*
* 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 <crypto/internal/hash.h>
#include <linux/cryptohash.h>
#include <linux/types.h>
#include <linux/string.h>
#include <crypto/sha.h>
#include <crypto/sha512_base.h>
#include <asm/neon.h>
MODULE_DESCRIPTION("SHA-384/SHA-512 secure hash for arm64");
MODULE_AUTHOR("Andy Polyakov <appro@openssl.org>");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS_CRYPTO("sha384");
MODULE_ALIAS_CRYPTO("sha512");
asmlinkage void sha512_block_data_order(u32 *digest, const void *data,
unsigned int num_blks);
static int sha512_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha512_base_do_update(desc, data, len,
(sha512_block_fn *)sha512_block_data_order);
}
static int sha512_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
if (len)
sha512_base_do_update(desc, data, len,
(sha512_block_fn *)sha512_block_data_order);
sha512_base_do_finalize(desc,
(sha512_block_fn *)sha512_block_data_order);
return sha512_base_finish(desc, out);
}
static int sha512_final(struct shash_desc *desc, u8 *out)
{
return sha512_finup(desc, NULL, 0, out);
}
static struct shash_alg algs[] = { {
.digestsize = SHA512_DIGEST_SIZE,
.init = sha512_base_init,
.update = sha512_update,
.final = sha512_final,
.finup = sha512_finup,
.descsize = sizeof(struct sha512_state),
.base.cra_name = "sha512",
.base.cra_driver_name = "sha512-arm64",
.base.cra_priority = 150,
.base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.base.cra_blocksize = SHA512_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
}, {
.digestsize = SHA384_DIGEST_SIZE,
.init = sha384_base_init,
.update = sha512_update,
.final = sha512_final,
.finup = sha512_finup,
.descsize = sizeof(struct sha512_state),
.base.cra_name = "sha384",
.base.cra_driver_name = "sha384-arm64",
.base.cra_priority = 150,
.base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.base.cra_blocksize = SHA384_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
} };
static int __init sha512_mod_init(void)
{
return crypto_register_shashes(algs, ARRAY_SIZE(algs));
}
static void __exit sha512_mod_fini(void)
{
crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
}
module_init(sha512_mod_init);
module_exit(sha512_mod_fini);

2
arch/powerpc/crypto/Makefile
View file

@ -9,7 +9,7 @@ obj-$(CONFIG_CRYPTO_MD5_PPC) += md5-ppc.o
obj-$(CONFIG_CRYPTO_SHA1_PPC) += sha1-powerpc.o
obj-$(CONFIG_CRYPTO_SHA1_PPC_SPE) += sha1-ppc-spe.o
obj-$(CONFIG_CRYPTO_SHA256_PPC_SPE) += sha256-ppc-spe.o
obj-$(CONFIG_CRYPT_CRC32C_VPMSUM) += crc32c-vpmsum.o
obj-$(CONFIG_CRYPTO_CRC32C_VPMSUM) += crc32c-vpmsum.o
aes-ppc-spe-y := aes-spe-core.o aes-spe-keys.o aes-tab-4k.o aes-spe-modes.o aes-spe-glue.o
md5-ppc-y := md5-asm.o md5-glue.o

723
arch/x86/crypto/aesni-intel_glue.c
View file

@ -21,7 +21,6 @@
#include <linux/hardirq.h>
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/module.h>
#include <linux/err.h>
#include <crypto/algapi.h>
@ -29,14 +28,14 @@
#include <crypto/cryptd.h>
#include <crypto/ctr.h>
#include <crypto/b128ops.h>
#include <crypto/lrw.h>
#include <crypto/xts.h>
#include <asm/cpu_device_id.h>
#include <asm/fpu/api.h>
#include <asm/crypto/aes.h>
#include <crypto/ablk_helper.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
#include <linux/workqueue.h>
#include <linux/spinlock.h>
#ifdef CONFIG_X86_64
@ -45,28 +44,26 @@
#define AESNI_ALIGN 16
#define AESNI_ALIGN_ATTR __attribute__ ((__aligned__(AESNI_ALIGN)))
#define AES_BLOCK_MASK (~(AES_BLOCK_SIZE - 1))
#define RFC4106_HASH_SUBKEY_SIZE 16
#define AESNI_ALIGN_EXTRA ((AESNI_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1))
#define CRYPTO_AES_CTX_SIZE (sizeof(struct crypto_aes_ctx) + AESNI_ALIGN_EXTRA)
#define XTS_AES_CTX_SIZE (sizeof(struct aesni_xts_ctx) + AESNI_ALIGN_EXTRA)
/* This data is stored at the end of the crypto_tfm struct.
* It's a type of per "session" data storage location.
* This needs to be 16 byte aligned.
*/
struct aesni_rfc4106_gcm_ctx {
u8 hash_subkey[16] __attribute__ ((__aligned__(AESNI_ALIGN)));
struct crypto_aes_ctx aes_key_expanded
__attribute__ ((__aligned__(AESNI_ALIGN)));
u8 hash_subkey[16] AESNI_ALIGN_ATTR;
struct crypto_aes_ctx aes_key_expanded AESNI_ALIGN_ATTR;
u8 nonce[4];
};
struct aesni_lrw_ctx {
struct lrw_table_ctx lrw_table;
u8 raw_aes_ctx[sizeof(struct crypto_aes_ctx) + AESNI_ALIGN - 1];
};
struct aesni_xts_ctx {
u8 raw_tweak_ctx[sizeof(struct crypto_aes_ctx) + AESNI_ALIGN - 1];
u8 raw_crypt_ctx[sizeof(struct crypto_aes_ctx) + AESNI_ALIGN - 1];
u8 raw_tweak_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR;
u8 raw_crypt_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR;
};
asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
@ -360,96 +357,95 @@ static void __aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
aesni_dec(ctx, dst, src);
}
static int ecb_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int aesni_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int len)
{
struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
struct blkcipher_walk walk;
return aes_set_key_common(crypto_skcipher_tfm(tfm),
crypto_skcipher_ctx(tfm), key, len);
}
static int ecb_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
struct skcipher_walk walk;
unsigned int nbytes;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
err = skcipher_walk_virt(&walk, req, true);
kernel_fpu_begin();
while ((nbytes = walk.nbytes)) {
aesni_ecb_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK);
nbytes &= AES_BLOCK_SIZE - 1;
err = blkcipher_walk_done(desc, &walk, nbytes);
err = skcipher_walk_done(&walk, nbytes);
}
kernel_fpu_end();
return err;
}
static int ecb_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int ecb_decrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
struct skcipher_walk walk;
unsigned int nbytes;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
err = skcipher_walk_virt(&walk, req, true);
kernel_fpu_begin();
while ((nbytes = walk.nbytes)) {
aesni_ecb_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK);
nbytes &= AES_BLOCK_SIZE - 1;
err = blkcipher_walk_done(desc, &walk, nbytes);
err = skcipher_walk_done(&walk, nbytes);
}
kernel_fpu_end();
return err;
}
static int cbc_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int cbc_encrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
struct skcipher_walk walk;
unsigned int nbytes;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
err = skcipher_walk_virt(&walk, req, true);
kernel_fpu_begin();
while ((nbytes = walk.nbytes)) {
aesni_cbc_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK, walk.iv);
nbytes &= AES_BLOCK_SIZE - 1;
err = blkcipher_walk_done(desc, &walk, nbytes);
err = skcipher_walk_done(&walk, nbytes);
}
kernel_fpu_end();
return err;
}
static int cbc_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int cbc_decrypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
struct skcipher_walk walk;
unsigned int nbytes;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
err = skcipher_walk_virt(&walk, req, true);
kernel_fpu_begin();
while ((nbytes = walk.nbytes)) {
aesni_cbc_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK, walk.iv);
nbytes &= AES_BLOCK_SIZE - 1;
err = blkcipher_walk_done(desc, &walk, nbytes);
err = skcipher_walk_done(&walk, nbytes);
}
kernel_fpu_end();
@ -458,7 +454,7 @@ static int cbc_decrypt(struct blkcipher_desc *desc,
#ifdef CONFIG_X86_64
static void ctr_crypt_final(struct crypto_aes_ctx *ctx,
struct blkcipher_walk *walk)
struct skcipher_walk *walk)
{
u8 *ctrblk = walk->iv;
u8 keystream[AES_BLOCK_SIZE];
@ -491,157 +487,53 @@ static void aesni_ctr_enc_avx_tfm(struct crypto_aes_ctx *ctx, u8 *out,
}
#endif
static int ctr_crypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int ctr_crypt(struct skcipher_request *req)
{
struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
struct blkcipher_walk walk;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
struct skcipher_walk walk;
unsigned int nbytes;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
err = skcipher_walk_virt(&walk, req, true);
kernel_fpu_begin();
while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) {
aesni_ctr_enc_tfm(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK, walk.iv);
nbytes &= AES_BLOCK_SIZE - 1;
err = blkcipher_walk_done(desc, &walk, nbytes);
err = skcipher_walk_done(&walk, nbytes);
}
if (walk.nbytes) {
ctr_crypt_final(ctx, &walk);
err = blkcipher_walk_done(desc, &walk, 0);
err = skcipher_walk_done(&walk, 0);
}
kernel_fpu_end();
return err;
}
#endif
static int ablk_ecb_init(struct crypto_tfm *tfm)
{
return ablk_init_common(tfm, "__driver-ecb-aes-aesni");
}
static int ablk_cbc_init(struct crypto_tfm *tfm)
{
return ablk_init_common(tfm, "__driver-cbc-aes-aesni");
}
#ifdef CONFIG_X86_64
static int ablk_ctr_init(struct crypto_tfm *tfm)
{
return ablk_init_common(tfm, "__driver-ctr-aes-aesni");
}
#endif
#if IS_ENABLED(CONFIG_CRYPTO_PCBC)
static int ablk_pcbc_init(struct crypto_tfm *tfm)
{
return ablk_init_common(tfm, "fpu(pcbc(__driver-aes-aesni))");
}
#endif
static void lrw_xts_encrypt_callback(void *ctx, u8 *blks, unsigned int nbytes)
{
aesni_ecb_enc(ctx, blks, blks, nbytes);
}
static void lrw_xts_decrypt_callback(void *ctx, u8 *blks, unsigned int nbytes)
{
aesni_ecb_dec(ctx, blks, blks, nbytes);
}
static int lrw_aesni_setkey(struct crypto_tfm *tfm, const u8 *key,
static int xts_aesni_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct aesni_lrw_ctx *ctx = crypto_tfm_ctx(tfm);
struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
int err;
err = aes_set_key_common(tfm, ctx->raw_aes_ctx, key,
keylen - AES_BLOCK_SIZE);
err = xts_verify_key(tfm, key, keylen);
if (err)
return err;
return lrw_init_table(&ctx->lrw_table, key + keylen - AES_BLOCK_SIZE);
}
static void lrw_aesni_exit_tfm(struct crypto_tfm *tfm)
{
struct aesni_lrw_ctx *ctx = crypto_tfm_ctx(tfm);
lrw_free_table(&ctx->lrw_table);
}
static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
{
struct aesni_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
be128 buf[8];
struct lrw_crypt_req req = {
.tbuf = buf,
.tbuflen = sizeof(buf),
.table_ctx = &ctx->lrw_table,
.crypt_ctx = aes_ctx(ctx->raw_aes_ctx),
.crypt_fn = lrw_xts_encrypt_callback,
};
int ret;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
kernel_fpu_begin();
ret = lrw_crypt(desc, dst, src, nbytes, &req);
kernel_fpu_end();
return ret;
}
static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
{
struct aesni_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
be128 buf[8];
struct lrw_crypt_req req = {
.tbuf = buf,
.tbuflen = sizeof(buf),
.table_ctx = &ctx->lrw_table,
.crypt_ctx = aes_ctx(ctx->raw_aes_ctx),
.crypt_fn = lrw_xts_decrypt_callback,
};
int ret;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
kernel_fpu_begin();
ret = lrw_crypt(desc, dst, src, nbytes, &req);
kernel_fpu_end();
return ret;
}
static int xts_aesni_setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen)
{
struct aesni_xts_ctx *ctx = crypto_tfm_ctx(tfm);
int err;
err = xts_check_key(tfm, key, keylen);
if (err)
return err;
keylen /= 2;
/* first half of xts-key is for crypt */
err = aes_set_key_common(tfm, ctx->raw_crypt_ctx, key, keylen / 2);
err = aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_crypt_ctx,
key, keylen);
if (err)
return err;
/* second half of xts-key is for tweak */
return aes_set_key_common(tfm, ctx->raw_tweak_ctx, key + keylen / 2,
keylen / 2);
return aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_tweak_ctx,
key + keylen, keylen);
}
@ -650,8 +542,6 @@ static void aesni_xts_tweak(void *ctx, u8 *out, const u8 *in)
aesni_enc(ctx, out, in);
}
#ifdef CONFIG_X86_64
static void aesni_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
{
glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(aesni_enc));
@ -698,83 +588,28 @@ static const struct common_glue_ctx aesni_dec_xts = {
} }
};
static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int xts_encrypt(struct skcipher_request *req)
{
struct aesni_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
return glue_xts_crypt_128bit(&aesni_enc_xts, desc, dst, src, nbytes,
XTS_TWEAK_CAST(aesni_xts_tweak),
aes_ctx(ctx->raw_tweak_ctx),
aes_ctx(ctx->raw_crypt_ctx));
return glue_xts_req_128bit(&aesni_enc_xts, req,
XTS_TWEAK_CAST(aesni_xts_tweak),
aes_ctx(ctx->raw_tweak_ctx),
aes_ctx(ctx->raw_crypt_ctx));
}
static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int xts_decrypt(struct skcipher_request *req)
{
struct aesni_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
return glue_xts_crypt_128bit(&aesni_dec_xts, desc, dst, src, nbytes,
XTS_TWEAK_CAST(aesni_xts_tweak),
aes_ctx(ctx->raw_tweak_ctx),
aes_ctx(ctx->raw_crypt_ctx));
return glue_xts_req_128bit(&aesni_dec_xts, req,
XTS_TWEAK_CAST(aesni_xts_tweak),
aes_ctx(ctx->raw_tweak_ctx),
aes_ctx(ctx->raw_crypt_ctx));
}
#else
static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
{
struct aesni_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
be128 buf[8];
struct xts_crypt_req req = {
.tbuf = buf,
.tbuflen = sizeof(buf),
.tweak_ctx = aes_ctx(ctx->raw_tweak_ctx),
.tweak_fn = aesni_xts_tweak,
.crypt_ctx = aes_ctx(ctx->raw_crypt_ctx),
.crypt_fn = lrw_xts_encrypt_callback,
};
int ret;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
kernel_fpu_begin();
ret = xts_crypt(desc, dst, src, nbytes, &req);
kernel_fpu_end();
return ret;
}
static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
{
struct aesni_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
be128 buf[8];
struct xts_crypt_req req = {
.tbuf = buf,
.tbuflen = sizeof(buf),
.tweak_ctx = aes_ctx(ctx->raw_tweak_ctx),
.tweak_fn = aesni_xts_tweak,
.crypt_ctx = aes_ctx(ctx->raw_crypt_ctx),
.crypt_fn = lrw_xts_decrypt_callback,
};
int ret;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
kernel_fpu_begin();
ret = xts_crypt(desc, dst, src, nbytes, &req);
kernel_fpu_end();
return ret;
}
#endif
#ifdef CONFIG_X86_64
static int rfc4106_init(struct crypto_aead *aead)
{
struct cryptd_aead *cryptd_tfm;
@ -1077,9 +912,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx) +
AESNI_ALIGN - 1,
.cra_alignmask = 0,
.cra_ctxsize = CRYPTO_AES_CTX_SIZE,
.cra_module = THIS_MODULE,
.cra_u = {
.cipher = {
@ -1091,14 +924,12 @@ static struct crypto_alg aesni_algs[] = { {
}
}
}, {
.cra_name = "__aes-aesni",
.cra_driver_name = "__driver-aes-aesni",
.cra_priority = 0,
.cra_name = "__aes",
.cra_driver_name = "__aes-aesni",
.cra_priority = 300,
.cra_flags = CRYPTO_ALG_TYPE_CIPHER | CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx) +
AESNI_ALIGN - 1,
.cra_alignmask = 0,
.cra_ctxsize = CRYPTO_AES_CTX_SIZE,
.cra_module = THIS_MODULE,
.cra_u = {
.cipher = {
@ -1109,251 +940,95 @@ static struct crypto_alg aesni_algs[] = { {
.cia_decrypt = __aes_decrypt
}
}
}, {
.cra_name = "__ecb-aes-aesni",
.cra_driver_name = "__driver-ecb-aes-aesni",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx) +
AESNI_ALIGN - 1,
.cra_alignmask = 0,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_u = {
.blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = aes_set_key,
.encrypt = ecb_encrypt,
.decrypt = ecb_decrypt,
},
},
}, {
.cra_name = "__cbc-aes-aesni",
.cra_driver_name = "__driver-cbc-aes-aesni",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct crypto_aes_ctx) +
AESNI_ALIGN - 1,
.cra_alignmask = 0,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_u = {
.blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = aes_set_key,
.encrypt = cbc_encrypt,
.decrypt = cbc_decrypt,
},
},
}, {
.cra_name = "ecb(aes)",
.cra_driver_name = "ecb-aes-aesni",
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_ecb_init,
.cra_exit = ablk_exit,
.cra_u = {
.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
},
},
}, {
.cra_name = "cbc(aes)",
.cra_driver_name = "cbc-aes-aesni",
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_cbc_init,
.cra_exit = ablk_exit,
.cra_u = {
.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
},
},
#ifdef CONFIG_X86_64
}, {
.cra_name = "__ctr-aes-aesni",
.cra_driver_name = "__driver-ctr-aes-aesni",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct crypto_aes_ctx) +
AESNI_ALIGN - 1,
.cra_alignmask = 0,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_u = {
.blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = aes_set_key,
.encrypt = ctr_crypt,
.decrypt = ctr_crypt,
},
},
}, {
.cra_name = "ctr(aes)",
.cra_driver_name = "ctr-aes-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_ctr_init,
.cra_exit = ablk_exit,
.cra_u = {
.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_encrypt,
.geniv = "chainiv",
},
},
#endif
#if IS_ENABLED(CONFIG_CRYPTO_PCBC)
}, {
.cra_name = "pcbc(aes)",
.cra_driver_name = "pcbc-aes-aesni",
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = ablk_pcbc_init,
.cra_exit = ablk_exit,
.cra_u = {
.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
},
},
#endif
}, {
.cra_name = "__lrw-aes-aesni",
.cra_driver_name = "__driver-lrw-aes-aesni",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aesni_lrw_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_exit = lrw_aesni_exit_tfm,
.cra_u = {
.blkcipher = {
.min_keysize = AES_MIN_KEY_SIZE + AES_BLOCK_SIZE,
.max_keysize = AES_MAX_KEY_SIZE + AES_BLOCK_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = lrw_aesni_setkey,
.encrypt = lrw_encrypt,
.decrypt = lrw_decrypt,
},
},
}, {
.cra_name = "__xts-aes-aesni",
.cra_driver_name = "__driver-xts-aes-aesni",
.cra_priority = 0,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct aesni_xts_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
.cra_u = {
.blkcipher = {
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = xts_aesni_setkey,
.encrypt = xts_encrypt,
.decrypt = xts_decrypt,
},
},
}, {
.cra_name = "lrw(aes)",
.cra_driver_name = "lrw-aes-aesni",
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_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 = AES_MIN_KEY_SIZE + AES_BLOCK_SIZE,
.max_keysize = AES_MAX_KEY_SIZE + AES_BLOCK_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
},
},
}, {
.cra_name = "xts(aes)",
.cra_driver_name = "xts-aes-aesni",
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_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 = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = ablk_set_key,
.encrypt = ablk_encrypt,
.decrypt = ablk_decrypt,
},
},
} };
static struct skcipher_alg aesni_skciphers[] = {
{
.base = {
.cra_name = "__ecb(aes)",
.cra_driver_name = "__ecb-aes-aesni",
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = CRYPTO_AES_CTX_SIZE,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.setkey = aesni_skcipher_setkey,
.encrypt = ecb_encrypt,
.decrypt = ecb_decrypt,
}, {
.base = {
.cra_name = "__cbc(aes)",
.cra_driver_name = "__cbc-aes-aesni",
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = CRYPTO_AES_CTX_SIZE,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = aesni_skcipher_setkey,
.encrypt = cbc_encrypt,
.decrypt = cbc_decrypt,
#ifdef CONFIG_X86_64
}, {
.base = {
.cra_name = "__ctr(aes)",
.cra_driver_name = "__ctr-aes-aesni",
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = 1,
.cra_ctxsize = CRYPTO_AES_CTX_SIZE,
.cra_module = THIS_MODULE,
},
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.chunksize = AES_BLOCK_SIZE,
.setkey = aesni_skcipher_setkey,
.encrypt = ctr_crypt,
.decrypt = ctr_crypt,
}, {
.base = {
.cra_name = "__xts(aes)",
.cra_driver_name = "__xts-aes-aesni",
.cra_priority = 401,
.cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = XTS_AES_CTX_SIZE,
.cra_module = THIS_MODULE,
},
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = xts_aesni_setkey,
.encrypt = xts_encrypt,
.decrypt = xts_decrypt,
#endif
}
};
struct simd_skcipher_alg *aesni_simd_skciphers[ARRAY_SIZE(aesni_skciphers)];
struct {
const char *algname;
const char *drvname;
const char *basename;
struct simd_skcipher_alg *simd;
} aesni_simd_skciphers2[] = {
#if IS_ENABLED(CONFIG_CRYPTO_PCBC)
{
.algname = "pcbc(aes)",
.drvname = "pcbc-aes-aesni",
.basename = "fpu(pcbc(__aes-aesni))",
},
#endif
};
#ifdef CONFIG_X86_64
static struct aead_alg aesni_aead_algs[] = { {
.setkey = common_rfc4106_set_key,
@ -1401,9 +1076,27 @@ static const struct x86_cpu_id aesni_cpu_id[] = {
};
MODULE_DEVICE_TABLE(x86cpu, aesni_cpu_id);
static void aesni_free_simds(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(aesni_simd_skciphers) &&
aesni_simd_skciphers[i]; i++)
simd_skcipher_free(aesni_simd_skciphers[i]);
for (i = 0; i < ARRAY_SIZE(aesni_simd_skciphers2) &&
aesni_simd_skciphers2[i].simd; i++)
simd_skcipher_free(aesni_simd_skciphers2[i].simd);
}
static int __init aesni_init(void)
{
struct simd_skcipher_alg *simd;
const char *basename;
const char *algname;
const char *drvname;
int err;
int i;
if (!x86_match_cpu(aesni_cpu_id))
return -ENODEV;
@ -1445,13 +1138,48 @@ static int __init aesni_init(void)
if (err)
goto fpu_exit;
err = crypto_register_aeads(aesni_aead_algs,
ARRAY_SIZE(aesni_aead_algs));
err = crypto_register_skciphers(aesni_skciphers,
ARRAY_SIZE(aesni_skciphers));
if (err)
goto unregister_algs;
return err;
err = crypto_register_aeads(aesni_aead_algs,
ARRAY_SIZE(aesni_aead_algs));
if (err)
goto unregister_skciphers;
for (i = 0; i < ARRAY_SIZE(aesni_skciphers); i++) {
algname = aesni_skciphers[i].base.cra_name + 2;
drvname = aesni_skciphers[i].base.cra_driver_name + 2;
basename = aesni_skciphers[i].base.cra_driver_name;
simd = simd_skcipher_create_compat(algname, drvname, basename);
err = PTR_ERR(simd);
if (IS_ERR(simd))
goto unregister_simds;
aesni_simd_skciphers[i] = simd;
}
for (i = 0; i < ARRAY_SIZE(aesni_simd_skciphers2); i++) {
algname = aesni_simd_skciphers2[i].algname;
drvname = aesni_simd_skciphers2[i].drvname;
basename = aesni_simd_skciphers2[i].basename;
simd = simd_skcipher_create_compat(algname, drvname, basename);
err = PTR_ERR(simd);
if (IS_ERR(simd))
goto unregister_simds;
aesni_simd_skciphers2[i].simd = simd;
}
return 0;
unregister_simds:
aesni_free_simds();
crypto_unregister_aeads(aesni_aead_algs, ARRAY_SIZE(aesni_aead_algs));
unregister_skciphers:
crypto_unregister_skciphers(aesni_skciphers,
ARRAY_SIZE(aesni_skciphers));
unregister_algs:
crypto_unregister_algs(aesni_algs, ARRAY_SIZE(aesni_algs));
fpu_exit:
@ -1461,7 +1189,10 @@ static int __init aesni_init(void)
static void __exit aesni_exit(void)
{
aesni_free_simds();
crypto_unregister_aeads(aesni_aead_algs, ARRAY_SIZE(aesni_aead_algs));
crypto_unregister_skciphers(aesni_skciphers,
ARRAY_SIZE(aesni_skciphers));
crypto_unregister_algs(aesni_algs, ARRAY_SIZE(aesni_algs));
crypto_fpu_exit();

199
arch/x86/crypto/fpu.c
View file

@ -11,143 +11,186 @@
*
*/
#include <crypto/algapi.h>
#include <crypto/internal/skcipher.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/crypto.h>
#include <asm/fpu/api.h>
struct crypto_fpu_ctx {
struct crypto_blkcipher *child;
struct crypto_skcipher *child;
};
static int crypto_fpu_setkey(struct crypto_tfm *parent, const u8 *key,
static int crypto_fpu_setkey(struct crypto_skcipher *parent, const u8 *key,
unsigned int keylen)
{
struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(parent);
struct crypto_blkcipher *child = ctx->child;
struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(parent);
struct crypto_skcipher *child = ctx->child;
int err;
crypto_blkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_blkcipher_set_flags(child, crypto_tfm_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_blkcipher_setkey(child, key, keylen);
crypto_tfm_set_flags(parent, crypto_blkcipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(child, key, keylen);
crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
static int crypto_fpu_encrypt(struct blkcipher_desc *desc_in,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int crypto_fpu_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *child = ctx->child;
SKCIPHER_REQUEST_ON_STACK(subreq, child);
int err;
struct crypto_fpu_ctx *ctx = crypto_blkcipher_ctx(desc_in->tfm);
struct crypto_blkcipher *child = ctx->child;
struct blkcipher_desc desc = {
.tfm = child,
.info = desc_in->info,
.flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
};
skcipher_request_set_tfm(subreq, child);
skcipher_request_set_callback(subreq, 0, NULL, NULL);
skcipher_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
req->iv);
kernel_fpu_begin();
err = crypto_blkcipher_crt(desc.tfm)->encrypt(&desc, dst, src, nbytes);
err = crypto_skcipher_encrypt(subreq);
kernel_fpu_end();
skcipher_request_zero(subreq);
return err;
}
static int crypto_fpu_decrypt(struct blkcipher_desc *desc_in,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int crypto_fpu_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *child = ctx->child;
SKCIPHER_REQUEST_ON_STACK(subreq, child);
int err;
struct crypto_fpu_ctx *ctx = crypto_blkcipher_ctx(desc_in->tfm);
struct crypto_blkcipher *child = ctx->child;
struct blkcipher_desc desc = {
.tfm = child,
.info = desc_in->info,
.flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
};
skcipher_request_set_tfm(subreq, child);
skcipher_request_set_callback(subreq, 0, NULL, NULL);
skcipher_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
req->iv);
kernel_fpu_begin();
err = crypto_blkcipher_crt(desc.tfm)->decrypt(&desc, dst, src, nbytes);
err = crypto_skcipher_decrypt(subreq);
kernel_fpu_end();
skcipher_request_zero(subreq);
return err;
}
static int crypto_fpu_init_tfm(struct crypto_tfm *tfm)
static int crypto_fpu_init_tfm(struct crypto_skcipher *tfm)
{
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct crypto_spawn *spawn = crypto_instance_ctx(inst);
struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_blkcipher *cipher;
struct skcipher_instance *inst = skcipher_alg_instance(tfm);
struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher_spawn *spawn;
struct crypto_skcipher *cipher;
cipher = crypto_spawn_blkcipher(spawn);
spawn = skcipher_instance_ctx(inst);
cipher = crypto_spawn_skcipher(spawn);
if (IS_ERR(cipher))
return PTR_ERR(cipher);
ctx->child = cipher;
return 0;
}
static void crypto_fpu_exit_tfm(struct crypto_tfm *tfm)
static void crypto_fpu_exit_tfm(struct crypto_skcipher *tfm)
{
struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(tfm);
crypto_free_blkcipher(ctx->child);
struct crypto_fpu_ctx *ctx = crypto_skcipher_ctx(tfm);
crypto_free_skcipher(ctx->child);
}
static struct crypto_instance *crypto_fpu_alloc(struct rtattr **tb)
static void crypto_fpu_free(struct skcipher_instance *inst)
{
struct crypto_instance *inst;
struct crypto_alg *alg;
crypto_drop_skcipher(skcipher_instance_ctx(inst));
kfree(inst);
}
static int crypto_fpu_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct crypto_skcipher_spawn *spawn;
struct skcipher_instance *inst;
struct crypto_attr_type *algt;
struct skcipher_alg *alg;
const char *cipher_name;
int err;
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return PTR_ERR(algt);
if ((algt->type ^ (CRYPTO_ALG_INTERNAL | CRYPTO_ALG_TYPE_SKCIPHER)) &
algt->mask)
return -EINVAL;
if (!(algt->mask & CRYPTO_ALG_INTERNAL))
return -EINVAL;
cipher_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(cipher_name))
return PTR_ERR(cipher_name);
inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
if (!inst)
return -ENOMEM;
spawn = skcipher_instance_ctx(inst);
crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst));
err = crypto_grab_skcipher(spawn, cipher_name, CRYPTO_ALG_INTERNAL,
CRYPTO_ALG_INTERNAL | CRYPTO_ALG_ASYNC);
if (err)
return ERR_PTR(err);
goto out_free_inst;
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_BLKCIPHER,
CRYPTO_ALG_TYPE_MASK);
if (IS_ERR(alg))
return ERR_CAST(alg);
alg = crypto_skcipher_spawn_alg(spawn);
inst = crypto_alloc_instance("fpu", alg);
if (IS_ERR(inst))
goto out_put_alg;
err = crypto_inst_setname(skcipher_crypto_instance(inst), "fpu",
&alg->base);
if (err)
goto out_drop_skcipher;
inst->alg.cra_flags = alg->cra_flags;
inst->alg.cra_priority = alg->cra_priority;
inst->alg.cra_blocksize = alg->cra_blocksize;
inst->alg.cra_alignmask = alg->cra_alignmask;
inst->alg.cra_type = alg->cra_type;
inst->alg.cra_blkcipher.ivsize = alg->cra_blkcipher.ivsize;
inst->alg.cra_blkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
inst->alg.cra_blkcipher.max_keysize = alg->cra_blkcipher.max_keysize;
inst->alg.cra_ctxsize = sizeof(struct crypto_fpu_ctx);
inst->alg.cra_init = crypto_fpu_init_tfm;
inst->alg.cra_exit = crypto_fpu_exit_tfm;
inst->alg.cra_blkcipher.setkey = crypto_fpu_setkey;
inst->alg.cra_blkcipher.encrypt = crypto_fpu_encrypt;
inst->alg.cra_blkcipher.decrypt = crypto_fpu_decrypt;
inst->alg.base.cra_flags = CRYPTO_ALG_INTERNAL;
inst->alg.base.cra_priority = alg->base.cra_priority;
inst->alg.base.cra_blocksize = alg->base.cra_blocksize;
inst->alg.base.cra_alignmask = alg->base.cra_alignmask;
out_put_alg:
crypto_mod_put(alg);
return inst;
}
inst->alg.ivsize = crypto_skcipher_alg_ivsize(alg);
inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg);
inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(alg);
static void crypto_fpu_free(struct crypto_instance *inst)
{
crypto_drop_spawn(crypto_instance_ctx(inst));
inst->alg.base.cra_ctxsize = sizeof(struct crypto_fpu_ctx);
inst->alg.init = crypto_fpu_init_tfm;
inst->alg.exit = crypto_fpu_exit_tfm;
inst->alg.setkey = crypto_fpu_setkey;
inst->alg.encrypt = crypto_fpu_encrypt;
inst->alg.decrypt = crypto_fpu_decrypt;
inst->free = crypto_fpu_free;
err = skcipher_register_instance(tmpl, inst);
if (err)
goto out_drop_skcipher;
out:
return err;
out_drop_skcipher:
crypto_drop_skcipher(spawn);
out_free_inst:
kfree(inst);
goto out;
}
static struct crypto_template crypto_fpu_tmpl = {
.name = "fpu",
.alloc = crypto_fpu_alloc,
.free = crypto_fpu_free,
.create = crypto_fpu_create,
.module = THIS_MODULE,
};

74
arch/x86/crypto/glue_helper.c
View file

@ -27,10 +27,10 @@
#include <linux/module.h>
#include <crypto/b128ops.h>
#include <crypto/internal/skcipher.h>
#include <crypto/lrw.h>
#include <crypto/xts.h>
#include <asm/crypto/glue_helper.h>
#include <crypto/scatterwalk.h>
static int __glue_ecb_crypt_128bit(const struct common_glue_ctx *gctx,
struct blkcipher_desc *desc,
@ -339,6 +339,41 @@ static unsigned int __glue_xts_crypt_128bit(const struct common_glue_ctx *gctx,
return nbytes;
}
static unsigned int __glue_xts_req_128bit(const struct common_glue_ctx *gctx,
void *ctx,
struct skcipher_walk *walk)
{
const unsigned int bsize = 128 / 8;
unsigned int nbytes = walk->nbytes;
u128 *src = walk->src.virt.addr;
u128 *dst = walk->dst.virt.addr;
unsigned int num_blocks, func_bytes;
unsigned int i;
/* Process multi-block batch */
for (i = 0; i < gctx->num_funcs; i++) {
num_blocks = gctx->funcs[i].num_blocks;
func_bytes = bsize * num_blocks;
if (nbytes >= func_bytes) {
do {
gctx->funcs[i].fn_u.xts(ctx, dst, src,
walk->iv);
src += num_blocks;
dst += num_blocks;
nbytes -= func_bytes;
} while (nbytes >= func_bytes);
if (nbytes < bsize)
goto done;
}
}
done:
return nbytes;
}
/* for implementations implementing faster XTS IV generator */
int glue_xts_crypt_128bit(const struct common_glue_ctx *gctx,
struct blkcipher_desc *desc, struct scatterlist *dst,
@ -379,6 +414,43 @@ int glue_xts_crypt_128bit(const struct common_glue_ctx *gctx,
}
EXPORT_SYMBOL_GPL(glue_xts_crypt_128bit);
int glue_xts_req_128bit(const struct common_glue_ctx *gctx,
struct skcipher_request *req,
common_glue_func_t tweak_fn, void *tweak_ctx,
void *crypt_ctx)
{
const unsigned int bsize = 128 / 8;
struct skcipher_walk walk;
bool fpu_enabled = false;
unsigned int nbytes;
int err;
err = skcipher_walk_virt(&walk, req, false);
nbytes = walk.nbytes;
if (!nbytes)
return err;
/* set minimum length to bsize, for tweak_fn */
fpu_enabled = glue_skwalk_fpu_begin(bsize, gctx->fpu_blocks_limit,
&walk, fpu_enabled,
nbytes < bsize ? bsize : nbytes);
/* calculate first value of T */
tweak_fn(tweak_ctx, walk.iv, walk.iv);
while (nbytes) {
nbytes = __glue_xts_req_128bit(gctx, crypt_ctx, &walk);
err = skcipher_walk_done(&walk, nbytes);
nbytes = walk.nbytes;
}
glue_fpu_end(fpu_enabled);
return err;
}
EXPORT_SYMBOL_GPL(glue_xts_req_128bit);
void glue_xts_crypt_128bit_one(void *ctx, u128 *dst, const u128 *src, le128 *iv,
common_glue_func_t fn)
{

2
arch/x86/crypto/sha1-mb/sha1_mb.c
View file

@ -114,7 +114,7 @@ static inline void sha1_init_digest(uint32_t *digest)
}
static inline uint32_t sha1_pad(uint8_t padblock[SHA1_BLOCK_SIZE * 2],
uint32_t total_len)
uint64_t total_len)
{
uint32_t i = total_len & (SHA1_BLOCK_SIZE - 1);

2
arch/x86/crypto/sha1-mb/sha1_mb_ctx.h
View file

@ -125,7 +125,7 @@ struct sha1_hash_ctx {
/* error flag */
int error;
uint32_t total_length;
uint64_t total_length;
const void *incoming_buffer;
uint32_t incoming_buffer_length;
uint8_t partial_block_buffer[SHA1_BLOCK_SIZE * 2];

2
arch/x86/crypto/sha256-mb/sha256_mb.c
View file

@ -115,7 +115,7 @@ inline void sha256_init_digest(uint32_t *digest)
}
inline uint32_t sha256_pad(uint8_t padblock[SHA256_BLOCK_SIZE * 2],
uint32_t total_len)
uint64_t total_len)
{
uint32_t i = total_len & (SHA256_BLOCK_SIZE - 1);

2
arch/x86/crypto/sha256-mb/sha256_mb_ctx.h
View file

@ -125,7 +125,7 @@ struct sha256_hash_ctx {
/* error flag */
int error;
uint32_t total_length;
uint64_t total_length;
const void *incoming_buffer;
uint32_t incoming_buffer_length;
uint8_t partial_block_buffer[SHA256_BLOCK_SIZE * 2];

2
arch/x86/crypto/sha512-mb/sha512_mb.c
View file

@ -117,7 +117,7 @@ inline void sha512_init_digest(uint64_t *digest)
}
inline uint32_t sha512_pad(uint8_t padblock[SHA512_BLOCK_SIZE * 2],
uint32_t total_len)
uint64_t total_len)
{
uint32_t i = total_len & (SHA512_BLOCK_SIZE - 1);

2
arch/x86/crypto/sha512-mb/sha512_mb_ctx.h
View file

@ -119,7 +119,7 @@ struct sha512_hash_ctx {
/* error flag */
int error;
uint32_t total_length;
uint64_t total_length;
const void *incoming_buffer;
uint32_t incoming_buffer_length;
uint8_t partial_block_buffer[SHA512_BLOCK_SIZE * 2];

39
arch/x86/include/asm/crypto/glue_helper.h
View file

@ -5,8 +5,8 @@
#ifndef _CRYPTO_GLUE_HELPER_H
#define _CRYPTO_GLUE_HELPER_H
#include <crypto/internal/skcipher.h>
#include <linux/kernel.h>
#include <linux/crypto.h>
#include <asm/fpu/api.h>
#include <crypto/b128ops.h>
@ -69,6 +69,31 @@ static inline bool glue_fpu_begin(unsigned int bsize, int fpu_blocks_limit,
return true;
}
static inline bool glue_skwalk_fpu_begin(unsigned int bsize,
int fpu_blocks_limit,
struct skcipher_walk *walk,
bool fpu_enabled, unsigned int nbytes)
{
if (likely(fpu_blocks_limit < 0))
return false;
if (fpu_enabled)
return true;
/*
* Vector-registers are only used when chunk to be processed is large
* enough, so do not enable FPU until it is necessary.
*/
if (nbytes < bsize * (unsigned int)fpu_blocks_limit)
return false;
/* prevent sleeping if FPU is in use */
skcipher_walk_atomise(walk);
kernel_fpu_begin();
return true;
}
static inline void glue_fpu_end(bool fpu_enabled)
{
if (fpu_enabled)
@ -139,6 +164,18 @@ extern int glue_xts_crypt_128bit(const struct common_glue_ctx *gctx,
common_glue_func_t tweak_fn, void *tweak_ctx,
void *crypt_ctx);
extern int glue_xts_crypt_128bit(const struct common_glue_ctx *gctx,
struct blkcipher_desc *desc,
struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes,
common_glue_func_t tweak_fn, void *tweak_ctx,
void *crypt_ctx);
extern int glue_xts_req_128bit(const struct common_glue_ctx *gctx,
struct skcipher_request *req,
common_glue_func_t tweak_fn, void *tweak_ctx,
void *crypt_ctx);
extern void glue_xts_crypt_128bit_one(void *ctx, u128 *dst, const u128 *src,
le128 *iv, common_glue_func_t fn);

81
crypto/842.c
View file

@ -31,11 +31,46 @@
#include <linux/module.h>
#include <linux/crypto.h>
#include <linux/sw842.h>
#include <crypto/internal/scompress.h>
struct crypto842_ctx {
char wmem[SW842_MEM_COMPRESS]; /* working memory for compress */
void *wmem; /* working memory for compress */
};
static void *crypto842_alloc_ctx(struct crypto_scomp *tfm)
{
void *ctx;
ctx = kmalloc(SW842_MEM_COMPRESS, GFP_KERNEL);
if (!ctx)
return ERR_PTR(-ENOMEM);
return ctx;
}
static int crypto842_init(struct crypto_tfm *tfm)
{
struct crypto842_ctx *ctx = crypto_tfm_ctx(tfm);
ctx->wmem = crypto842_alloc_ctx(NULL);
if (IS_ERR(ctx->wmem))
return -ENOMEM;
return 0;
}
static void crypto842_free_ctx(struct crypto_scomp *tfm, void *ctx)
{
kfree(ctx);
}
static void crypto842_exit(struct crypto_tfm *tfm)
{
struct crypto842_ctx *ctx = crypto_tfm_ctx(tfm);
crypto842_free_ctx(NULL, ctx->wmem);
}
static int crypto842_compress(struct crypto_tfm *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen)
@ -45,6 +80,13 @@ static int crypto842_compress(struct crypto_tfm *tfm,
return sw842_compress(src, slen, dst, dlen, ctx->wmem);
}
static int crypto842_scompress(struct crypto_scomp *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
return sw842_compress(src, slen, dst, dlen, ctx);
}
static int crypto842_decompress(struct crypto_tfm *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen)
@ -52,6 +94,13 @@ static int crypto842_decompress(struct crypto_tfm *tfm,
return sw842_decompress(src, slen, dst, dlen);
}
static int crypto842_sdecompress(struct crypto_scomp *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
return sw842_decompress(src, slen, dst, dlen);
}
static struct crypto_alg alg = {
.cra_name = "842",
.cra_driver_name = "842-generic",
@ -59,20 +108,48 @@ static struct crypto_alg alg = {
.cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
.cra_ctxsize = sizeof(struct crypto842_ctx),
.cra_module = THIS_MODULE,
.cra_init = crypto842_init,
.cra_exit = crypto842_exit,
.cra_u = { .compress = {
.coa_compress = crypto842_compress,
.coa_decompress = crypto842_decompress } }
};
static struct scomp_alg scomp = {
.alloc_ctx = crypto842_alloc_ctx,
.free_ctx = crypto842_free_ctx,
.compress = crypto842_scompress,
.decompress = crypto842_sdecompress,
.base = {
.cra_name = "842",
.cra_driver_name = "842-scomp",
.cra_priority = 100,
.cra_module = THIS_MODULE,
}
};
static int __init crypto842_mod_init(void)
{
return crypto_register_alg(&alg);
int ret;
ret = crypto_register_alg(&alg);
if (ret)
return ret;
ret = crypto_register_scomp(&scomp);
if (ret) {
crypto_unregister_alg(&alg);
return ret;
}
return ret;
}
module_init(crypto842_mod_init);
static void __exit crypto842_mod_exit(void)
{
crypto_unregister_alg(&alg);
crypto_unregister_scomp(&scomp);
}
module_exit(crypto842_mod_exit);

32
crypto/Kconfig
View file

@ -24,7 +24,7 @@ comment "Crypto core or helper"
config CRYPTO_FIPS
bool "FIPS 200 compliance"
depends on (CRYPTO_ANSI_CPRNG || CRYPTO_DRBG) && !CRYPTO_MANAGER_DISABLE_TESTS
depends on MODULE_SIG
depends on (MODULE_SIG || !MODULES)
help
This options enables the fips boot option which is
required if you want to system to operate in a FIPS 200
@ -102,6 +102,15 @@ config CRYPTO_KPP
select CRYPTO_ALGAPI
select CRYPTO_KPP2
config CRYPTO_ACOMP2
tristate
select CRYPTO_ALGAPI2
config CRYPTO_ACOMP
tristate
select CRYPTO_ALGAPI
select CRYPTO_ACOMP2
config CRYPTO_RSA
tristate "RSA algorithm"
select CRYPTO_AKCIPHER
@ -138,6 +147,7 @@ config CRYPTO_MANAGER2
select CRYPTO_BLKCIPHER2
select CRYPTO_AKCIPHER2
select CRYPTO_KPP2
select CRYPTO_ACOMP2
config CRYPTO_USER
tristate "Userspace cryptographic algorithm configuration"
@ -236,10 +246,14 @@ config CRYPTO_ABLK_HELPER
tristate
select CRYPTO_CRYPTD
config CRYPTO_SIMD
tristate
select CRYPTO_CRYPTD
config CRYPTO_GLUE_HELPER_X86
tristate
depends on X86
select CRYPTO_ALGAPI
select CRYPTO_BLKCIPHER
config CRYPTO_ENGINE
tristate
@ -437,7 +451,7 @@ config CRYPTO_CRC32C_INTEL
gain performance compared with software implementation.
Module will be crc32c-intel.
config CRYPT_CRC32C_VPMSUM
config CRYPTO_CRC32C_VPMSUM
tristate "CRC32c CRC algorithm (powerpc64)"
depends on PPC64 && ALTIVEC
select CRYPTO_HASH
@ -928,14 +942,13 @@ config CRYPTO_AES_X86_64
config CRYPTO_AES_NI_INTEL
tristate "AES cipher algorithms (AES-NI)"
depends on X86
select CRYPTO_AEAD
select CRYPTO_AES_X86_64 if 64BIT
select CRYPTO_AES_586 if !64BIT
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER
select CRYPTO_ALGAPI
select CRYPTO_BLKCIPHER
select CRYPTO_GLUE_HELPER_X86 if 64BIT
select CRYPTO_LRW
select CRYPTO_XTS
select CRYPTO_SIMD
help
Use Intel AES-NI instructions for AES algorithm.
@ -1568,6 +1581,7 @@ comment "Compression"
config CRYPTO_DEFLATE
tristate "Deflate compression algorithm"
select CRYPTO_ALGAPI
select CRYPTO_ACOMP2
select ZLIB_INFLATE
select ZLIB_DEFLATE
help
@ -1579,6 +1593,7 @@ config CRYPTO_DEFLATE
config CRYPTO_LZO
tristate "LZO compression algorithm"
select CRYPTO_ALGAPI
select CRYPTO_ACOMP2
select LZO_COMPRESS
select LZO_DECOMPRESS
help
@ -1587,6 +1602,7 @@ config CRYPTO_LZO
config CRYPTO_842
tristate "842 compression algorithm"
select CRYPTO_ALGAPI
select CRYPTO_ACOMP2
select 842_COMPRESS
select 842_DECOMPRESS
help
@ -1595,6 +1611,7 @@ config CRYPTO_842
config CRYPTO_LZ4
tristate "LZ4 compression algorithm"
select CRYPTO_ALGAPI
select CRYPTO_ACOMP2
select LZ4_COMPRESS
select LZ4_DECOMPRESS
help
@ -1603,6 +1620,7 @@ config CRYPTO_LZ4
config CRYPTO_LZ4HC
tristate "LZ4HC compression algorithm"
select CRYPTO_ALGAPI
select CRYPTO_ACOMP2
select LZ4HC_COMPRESS
select LZ4_DECOMPRESS
help

6
crypto/Makefile
View file

@ -51,6 +51,10 @@ rsa_generic-y += rsa_helper.o
rsa_generic-y += rsa-pkcs1pad.o
obj-$(CONFIG_CRYPTO_RSA) += rsa_generic.o
crypto_acompress-y := acompress.o
crypto_acompress-y += scompress.o
obj-$(CONFIG_CRYPTO_ACOMP2) += crypto_acompress.o
cryptomgr-y := algboss.o testmgr.o
obj-$(CONFIG_CRYPTO_MANAGER2) += cryptomgr.o
@ -139,3 +143,5 @@ obj-$(CONFIG_ASYNC_CORE) += async_tx/
obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys/
obj-$(CONFIG_CRYPTO_HASH_INFO) += hash_info.o
obj-$(CONFIG_CRYPTO_ABLK_HELPER) += ablk_helper.o
crypto_simd-y := simd.o
obj-$(CONFIG_CRYPTO_SIMD) += crypto_simd.o

169
crypto/acompress.c Normal file
View file

@ -0,0 +1,169 @@
/*
* Asynchronous Compression operations
*
* Copyright (c) 2016, Intel Corporation
* Authors: Weigang Li <weigang.li@intel.com>
* Giovanni Cabiddu <giovanni.cabiddu@intel.com>
*
* 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 <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/crypto.h>
#include <crypto/algapi.h>
#include <linux/cryptouser.h>
#include <net/netlink.h>
#include <crypto/internal/acompress.h>
#include <crypto/internal/scompress.h>
#include "internal.h"
static const struct crypto_type crypto_acomp_type;
#ifdef CONFIG_NET
static int crypto_acomp_report(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_acomp racomp;
strncpy(racomp.type, "acomp", sizeof(racomp.type));
if (nla_put(skb, CRYPTOCFGA_REPORT_ACOMP,
sizeof(struct crypto_report_acomp), &racomp))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
#else
static int crypto_acomp_report(struct sk_buff *skb, struct crypto_alg *alg)
{
return -ENOSYS;
}
#endif
static void crypto_acomp_show(struct seq_file *m, struct crypto_alg *alg)
__attribute__ ((unused));
static void crypto_acomp_show(struct seq_file *m, struct crypto_alg *alg)
{
seq_puts(m, "type : acomp\n");
}
static void crypto_acomp_exit_tfm(struct crypto_tfm *tfm)
{
struct crypto_acomp *acomp = __crypto_acomp_tfm(tfm);
struct acomp_alg *alg = crypto_acomp_alg(acomp);
alg->exit(acomp);
}
static int crypto_acomp_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_acomp *acomp = __crypto_acomp_tfm(tfm);
struct acomp_alg *alg = crypto_acomp_alg(acomp);
if (tfm->__crt_alg->cra_type != &crypto_acomp_type)
return crypto_init_scomp_ops_async(tfm);
acomp->compress = alg->compress;
acomp->decompress = alg->decompress;
acomp->dst_free = alg->dst_free;
acomp->reqsize = alg->reqsize;
if (alg->exit)
acomp->base.exit = crypto_acomp_exit_tfm;
if (alg->init)
return alg->init(acomp);
return 0;
}
static unsigned int crypto_acomp_extsize(struct crypto_alg *alg)
{
int extsize = crypto_alg_extsize(alg);
if (alg->cra_type != &crypto_acomp_type)
extsize += sizeof(struct crypto_scomp *);
return extsize;
}
static const struct crypto_type crypto_acomp_type = {
.extsize = crypto_acomp_extsize,
.init_tfm = crypto_acomp_init_tfm,
#ifdef CONFIG_PROC_FS
.show = crypto_acomp_show,
#endif
.report = crypto_acomp_report,
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_ACOMPRESS_MASK,
.type = CRYPTO_ALG_TYPE_ACOMPRESS,
.tfmsize = offsetof(struct crypto_acomp, base),
};
struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type,
u32 mask)
{
return crypto_alloc_tfm(alg_name, &crypto_acomp_type, type, mask);
}
EXPORT_SYMBOL_GPL(crypto_alloc_acomp);
struct acomp_req *acomp_request_alloc(struct crypto_acomp *acomp)
{
struct crypto_tfm *tfm = crypto_acomp_tfm(acomp);
struct acomp_req *req;
req = __acomp_request_alloc(acomp);
if (req && (tfm->__crt_alg->cra_type != &crypto_acomp_type))
return crypto_acomp_scomp_alloc_ctx(req);
return req;
}
EXPORT_SYMBOL_GPL(acomp_request_alloc);
void acomp_request_free(struct acomp_req *req)
{
struct crypto_acomp *acomp = crypto_acomp_reqtfm(req);
struct crypto_tfm *tfm = crypto_acomp_tfm(acomp);
if (tfm->__crt_alg->cra_type != &crypto_acomp_type)
crypto_acomp_scomp_free_ctx(req);
if (req->flags & CRYPTO_ACOMP_ALLOC_OUTPUT) {
acomp->dst_free(req->dst);
req->dst = NULL;
}
__acomp_request_free(req);
}
EXPORT_SYMBOL_GPL(acomp_request_free);
int crypto_register_acomp(struct acomp_alg *alg)
{
struct crypto_alg *base = &alg->base;
base->cra_type = &crypto_acomp_type;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_ACOMPRESS;
return crypto_register_alg(base);
}
EXPORT_SYMBOL_GPL(crypto_register_acomp);
int crypto_unregister_acomp(struct acomp_alg *alg)
{
return crypto_unregister_alg(&alg->base);
}
EXPORT_SYMBOL_GPL(crypto_unregister_acomp);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Asynchronous compression type");

8
crypto/algboss.c
View file

@ -247,12 +247,8 @@ static int cryptomgr_schedule_test(struct crypto_alg *alg)
memcpy(param->alg, alg->cra_name, sizeof(param->alg));
type = alg->cra_flags;
/* This piece of crap needs to disappear into per-type test hooks. */
if (!((type ^ CRYPTO_ALG_TYPE_BLKCIPHER) &
CRYPTO_ALG_TYPE_BLKCIPHER_MASK) && !(type & CRYPTO_ALG_GENIV) &&
((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) ==
CRYPTO_ALG_TYPE_BLKCIPHER ? alg->cra_blkcipher.ivsize :
alg->cra_ablkcipher.ivsize))
/* Do not test internal algorithms. */
if (type & CRYPTO_ALG_INTERNAL)
type |= CRYPTO_ALG_TESTED;
param->type = type;

5
crypto/algif_aead.c
View file

@ -454,12 +454,13 @@ static int aead_recvmsg_async(struct socket *sock, struct msghdr *msg,
used -= ctx->aead_assoclen;
/* take over all tx sgls from ctx */
areq->tsgl = sock_kmalloc(sk, sizeof(*areq->tsgl) * sgl->cur,
areq->tsgl = sock_kmalloc(sk,
sizeof(*areq->tsgl) * max_t(u32, sgl->cur, 1),
GFP_KERNEL);
if (unlikely(!areq->tsgl))
goto free;
sg_init_table(areq->tsgl, sgl->cur);
sg_init_table(areq->tsgl, max_t(u32, sgl->cur, 1));
for (i = 0; i < sgl->cur; i++)
sg_set_page(&areq->tsgl[i], sg_page(&sgl->sg[i]),
sgl->sg[i].length, sgl->sg[i].offset);

4
crypto/algif_skcipher.c
View file

@ -566,8 +566,10 @@ static int skcipher_recvmsg_async(struct socket *sock, struct msghdr *msg,
* need to expand */
tmp = kcalloc(tx_nents * 2, sizeof(*tmp),
GFP_KERNEL);
if (!tmp)
if (!tmp) {
err = -ENOMEM;
goto free;
}
sg_init_table(tmp, tx_nents * 2);
for (x = 0; x < tx_nents; x++)

22
crypto/api.c
View file

@ -211,8 +211,8 @@ struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask)
if (!name)
return ERR_PTR(-ENOENT);
type &= ~(CRYPTO_ALG_LARVAL | CRYPTO_ALG_DEAD);
mask &= ~(CRYPTO_ALG_LARVAL | CRYPTO_ALG_DEAD);
type &= mask;
alg = crypto_alg_lookup(name, type, mask);
if (!alg) {
@ -310,24 +310,8 @@ static void crypto_exit_ops(struct crypto_tfm *tfm)
{
const struct crypto_type *type = tfm->__crt_alg->cra_type;
if (type) {
if (tfm->exit)
tfm->exit(tfm);
return;
}
switch (crypto_tfm_alg_type(tfm)) {
case CRYPTO_ALG_TYPE_CIPHER:
crypto_exit_cipher_ops(tfm);
break;
case CRYPTO_ALG_TYPE_COMPRESS:
crypto_exit_compress_ops(tfm);
break;
default:
BUG();
}
if (type && tfm->exit)
tfm->exit(tfm);
}
static unsigned int crypto_ctxsize(struct crypto_alg *alg, u32 type, u32 mask)

8
crypto/authenc.c
View file

@ -324,7 +324,7 @@ static int crypto_authenc_init_tfm(struct crypto_aead *tfm)
if (IS_ERR(auth))
return PTR_ERR(auth);
enc = crypto_spawn_skcipher2(&ictx->enc);
enc = crypto_spawn_skcipher(&ictx->enc);
err = PTR_ERR(enc);
if (IS_ERR(enc))
goto err_free_ahash;
@ -420,9 +420,9 @@ static int crypto_authenc_create(struct crypto_template *tmpl,
goto err_free_inst;
crypto_set_skcipher_spawn(&ctx->enc, aead_crypto_instance(inst));
err = crypto_grab_skcipher2(&ctx->enc, enc_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
err = crypto_grab_skcipher(&ctx->enc, enc_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err)
goto err_drop_auth;

8
crypto/authencesn.c
View file

@ -342,7 +342,7 @@ static int crypto_authenc_esn_init_tfm(struct crypto_aead *tfm)
if (IS_ERR(auth))
return PTR_ERR(auth);
enc = crypto_spawn_skcipher2(&ictx->enc);
enc = crypto_spawn_skcipher(&ictx->enc);
err = PTR_ERR(enc);
if (IS_ERR(enc))
goto err_free_ahash;
@ -441,9 +441,9 @@ static int crypto_authenc_esn_create(struct crypto_template *tmpl,
goto err_free_inst;
crypto_set_skcipher_spawn(&ctx->enc, aead_crypto_instance(inst));
err = crypto_grab_skcipher2(&ctx->enc, enc_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
err = crypto_grab_skcipher(&ctx->enc, enc_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err)
goto err_drop_auth;

277
crypto/cbc.c
View file

@ -1,7 +1,7 @@
/*
* CBC: Cipher Block Chaining mode
*
* Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
* Copyright (c) 2006-2016 Herbert Xu <herbert@gondor.apana.org.au>
*
* 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
@ -10,191 +10,78 @@
*
*/
#include <crypto/algapi.h>
#include <crypto/cbc.h>
#include <crypto/internal/skcipher.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/log2.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
struct crypto_cbc_ctx {
struct crypto_cipher *child;
};
static int crypto_cbc_setkey(struct crypto_tfm *parent, const u8 *key,
static int crypto_cbc_setkey(struct crypto_skcipher *parent, const u8 *key,
unsigned int keylen)
{
struct crypto_cbc_ctx *ctx = crypto_tfm_ctx(parent);
struct crypto_cbc_ctx *ctx = crypto_skcipher_ctx(parent);
struct crypto_cipher *child = ctx->child;
int err;
crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(child, crypto_tfm_get_flags(parent) &
crypto_cipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_cipher_setkey(child, key, keylen);
crypto_tfm_set_flags(parent, crypto_cipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
crypto_skcipher_set_flags(parent, crypto_cipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
static int crypto_cbc_encrypt_segment(struct blkcipher_desc *desc,
struct blkcipher_walk *walk,
struct crypto_cipher *tfm)
static inline void crypto_cbc_encrypt_one(struct crypto_skcipher *tfm,
const u8 *src, u8 *dst)
{
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
crypto_cipher_alg(tfm)->cia_encrypt;
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
u8 *dst = walk->dst.virt.addr;
u8 *iv = walk->iv;
struct crypto_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
do {
crypto_xor(iv, src, bsize);
fn(crypto_cipher_tfm(tfm), dst, iv);
memcpy(iv, dst, bsize);
src += bsize;
dst += bsize;
} while ((nbytes -= bsize) >= bsize);
return nbytes;
crypto_cipher_encrypt_one(ctx->child, dst, src);
}
static int crypto_cbc_encrypt_inplace(struct blkcipher_desc *desc,
struct blkcipher_walk *walk,
struct crypto_cipher *tfm)
static int crypto_cbc_encrypt(struct skcipher_request *req)
{
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
crypto_cipher_alg(tfm)->cia_encrypt;
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
u8 *iv = walk->iv;
do {
crypto_xor(src, iv, bsize);
fn(crypto_cipher_tfm(tfm), src, src);
iv = src;
src += bsize;
} while ((nbytes -= bsize) >= bsize);
memcpy(walk->iv, iv, bsize);
return nbytes;
return crypto_cbc_encrypt_walk(req, crypto_cbc_encrypt_one);
}
static int crypto_cbc_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static inline void crypto_cbc_decrypt_one(struct crypto_skcipher *tfm,
const u8 *src, u8 *dst)
{
struct blkcipher_walk walk;
struct crypto_blkcipher *tfm = desc->tfm;
struct crypto_cbc_ctx *ctx = crypto_blkcipher_ctx(tfm);
struct crypto_cipher *child = ctx->child;
struct crypto_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
crypto_cipher_decrypt_one(ctx->child, dst, src);
}
static int crypto_cbc_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct skcipher_walk walk;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, false);
while ((nbytes = walk.nbytes)) {
if (walk.src.virt.addr == walk.dst.virt.addr)
nbytes = crypto_cbc_encrypt_inplace(desc, &walk, child);
else
nbytes = crypto_cbc_encrypt_segment(desc, &walk, child);
err = blkcipher_walk_done(desc, &walk, nbytes);
while (walk.nbytes) {
err = crypto_cbc_decrypt_blocks(&walk, tfm,
crypto_cbc_decrypt_one);
err = skcipher_walk_done(&walk, err);
}
return err;
}
static int crypto_cbc_decrypt_segment(struct blkcipher_desc *desc,
struct blkcipher_walk *walk,
struct crypto_cipher *tfm)
static int crypto_cbc_init_tfm(struct crypto_skcipher *tfm)
{
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
crypto_cipher_alg(tfm)->cia_decrypt;
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
u8 *dst = walk->dst.virt.addr;
u8 *iv = walk->iv;
do {
fn(crypto_cipher_tfm(tfm), dst, src);
crypto_xor(dst, iv, bsize);
iv = src;
src += bsize;
dst += bsize;
} while ((nbytes -= bsize) >= bsize);
memcpy(walk->iv, iv, bsize);
return nbytes;
}
static int crypto_cbc_decrypt_inplace(struct blkcipher_desc *desc,
struct blkcipher_walk *walk,
struct crypto_cipher *tfm)
{
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
crypto_cipher_alg(tfm)->cia_decrypt;
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
u8 last_iv[bsize];
/* Start of the last block. */
src += nbytes - (nbytes & (bsize - 1)) - bsize;
memcpy(last_iv, src, bsize);
for (;;) {
fn(crypto_cipher_tfm(tfm), src, src);
if ((nbytes -= bsize) < bsize)
break;
crypto_xor(src, src - bsize, bsize);
src -= bsize;
}
crypto_xor(src, walk->iv, bsize);
memcpy(walk->iv, last_iv, bsize);
return nbytes;
}
static int crypto_cbc_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
struct blkcipher_walk walk;
struct crypto_blkcipher *tfm = desc->tfm;
struct crypto_cbc_ctx *ctx = crypto_blkcipher_ctx(tfm);
struct crypto_cipher *child = ctx->child;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
while ((nbytes = walk.nbytes)) {
if (walk.src.virt.addr == walk.dst.virt.addr)
nbytes = crypto_cbc_decrypt_inplace(desc, &walk, child);
else
nbytes = crypto_cbc_decrypt_segment(desc, &walk, child);
err = blkcipher_walk_done(desc, &walk, nbytes);
}
return err;
}
static int crypto_cbc_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = (void *)tfm->__crt_alg;
struct crypto_spawn *spawn = crypto_instance_ctx(inst);
struct crypto_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
struct skcipher_instance *inst = skcipher_alg_instance(tfm);
struct crypto_spawn *spawn = skcipher_instance_ctx(inst);
struct crypto_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_cipher *cipher;
cipher = crypto_spawn_cipher(spawn);
@ -205,72 +92,94 @@ static int crypto_cbc_init_tfm(struct crypto_tfm *tfm)
return 0;
}
static void crypto_cbc_exit_tfm(struct crypto_tfm *tfm)
static void crypto_cbc_exit_tfm(struct crypto_skcipher *tfm)
{
struct crypto_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_cbc_ctx *ctx = crypto_skcipher_ctx(tfm);
crypto_free_cipher(ctx->child);
}
static struct crypto_instance *crypto_cbc_alloc(struct rtattr **tb)
static void crypto_cbc_free(struct skcipher_instance *inst)
{
struct crypto_instance *inst;
crypto_drop_skcipher(skcipher_instance_ctx(inst));
kfree(inst);
}
static int crypto_cbc_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct skcipher_instance *inst;
struct crypto_spawn *spawn;
struct crypto_alg *alg;
int err;
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_SKCIPHER);
if (err)
return ERR_PTR(err);
return err;
inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
if (!inst)
return -ENOMEM;
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
err = PTR_ERR(alg);
if (IS_ERR(alg))
return ERR_CAST(alg);
goto err_free_inst;
inst = ERR_PTR(-EINVAL);
spawn = skcipher_instance_ctx(inst);
err = crypto_init_spawn(spawn, alg, skcipher_crypto_instance(inst),
CRYPTO_ALG_TYPE_MASK);
crypto_mod_put(alg);
if (err)
goto err_free_inst;
err = crypto_inst_setname(skcipher_crypto_instance(inst), "cbc", alg);
if (err)
goto err_drop_spawn;
err = -EINVAL;
if (!is_power_of_2(alg->cra_blocksize))
goto out_put_alg;
goto err_drop_spawn;
inst = crypto_alloc_instance("cbc", alg);
if (IS_ERR(inst))
goto out_put_alg;
inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
inst->alg.cra_priority = alg->cra_priority;
inst->alg.cra_blocksize = alg->cra_blocksize;
inst->alg.cra_alignmask = alg->cra_alignmask;
inst->alg.cra_type = &crypto_blkcipher_type;
inst->alg.base.cra_priority = alg->cra_priority;
inst->alg.base.cra_blocksize = alg->cra_blocksize;
inst->alg.base.cra_alignmask = alg->cra_alignmask;
/* We access the data as u32s when xoring. */
inst->alg.cra_alignmask |= __alignof__(u32) - 1;
inst->alg.base.cra_alignmask |= __alignof__(u32) - 1;
inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;
inst->alg.cra_blkcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
inst->alg.cra_blkcipher.max_keysize = alg->cra_cipher.cia_max_keysize;
inst->alg.ivsize = alg->cra_blocksize;
inst->alg.min_keysize = alg->cra_cipher.cia_min_keysize;
inst->alg.max_keysize = alg->cra_cipher.cia_max_keysize;
inst->alg.cra_ctxsize = sizeof(struct crypto_cbc_ctx);
inst->alg.base.cra_ctxsize = sizeof(struct crypto_cbc_ctx);
inst->alg.cra_init = crypto_cbc_init_tfm;
inst->alg.cra_exit = crypto_cbc_exit_tfm;
inst->alg.init = crypto_cbc_init_tfm;
inst->alg.exit = crypto_cbc_exit_tfm;
inst->alg.cra_blkcipher.setkey = crypto_cbc_setkey;
inst->alg.cra_blkcipher.encrypt = crypto_cbc_encrypt;
inst->alg.cra_blkcipher.decrypt = crypto_cbc_decrypt;
inst->alg.setkey = crypto_cbc_setkey;
inst->alg.encrypt = crypto_cbc_encrypt;
inst->alg.decrypt = crypto_cbc_decrypt;
out_put_alg:
crypto_mod_put(alg);
return inst;
}
inst->free = crypto_cbc_free;
static void crypto_cbc_free(struct crypto_instance *inst)
{
crypto_drop_spawn(crypto_instance_ctx(inst));
err = skcipher_register_instance(tmpl, inst);
if (err)
goto err_drop_spawn;
out:
return err;
err_drop_spawn:
crypto_drop_spawn(spawn);
err_free_inst:
kfree(inst);
goto out;
}
static struct crypto_template crypto_cbc_tmpl = {
.name = "cbc",
.alloc = crypto_cbc_alloc,
.free = crypto_cbc_free,
.create = crypto_cbc_create,
.module = THIS_MODULE,
};

8
crypto/ccm.c
View file

@ -462,7 +462,7 @@ static int crypto_ccm_init_tfm(struct crypto_aead *tfm)
if (IS_ERR(cipher))
return PTR_ERR(cipher);
ctr = crypto_spawn_skcipher2(&ictx->ctr);
ctr = crypto_spawn_skcipher(&ictx->ctr);
err = PTR_ERR(ctr);
if (IS_ERR(ctr))
goto err_free_cipher;
@ -544,9 +544,9 @@ static int crypto_ccm_create_common(struct crypto_template *tmpl,
goto err_free_inst;
crypto_set_skcipher_spawn(&ictx->ctr, aead_crypto_instance(inst));
err = crypto_grab_skcipher2(&ictx->ctr, ctr_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
err = crypto_grab_skcipher(&ictx->ctr, ctr_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err)
goto err_drop_cipher;

8
crypto/chacha20poly1305.c
View file

@ -532,7 +532,7 @@ static int chachapoly_init(struct crypto_aead *tfm)
if (IS_ERR(poly))
return PTR_ERR(poly);
chacha = crypto_spawn_skcipher2(&ictx->chacha);
chacha = crypto_spawn_skcipher(&ictx->chacha);
if (IS_ERR(chacha)) {
crypto_free_ahash(poly);
return PTR_ERR(chacha);
@ -625,9 +625,9 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb,
goto err_free_inst;
crypto_set_skcipher_spawn(&ctx->chacha, aead_crypto_instance(inst));
err = crypto_grab_skcipher2(&ctx->chacha, chacha_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
err = crypto_grab_skcipher(&ctx->chacha, chacha_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err)
goto err_drop_poly;

4
crypto/cipher.c
View file

@ -116,7 +116,3 @@ int crypto_init_cipher_ops(struct crypto_tfm *tfm)
return 0;
}
void crypto_exit_cipher_ops(struct crypto_tfm *tfm)
{
}

14
crypto/cmac.c
View file

@ -57,7 +57,8 @@ static int crypto_cmac_digest_setkey(struct crypto_shash *parent,
unsigned long alignmask = crypto_shash_alignmask(parent);
struct cmac_tfm_ctx *ctx = crypto_shash_ctx(parent);
unsigned int bs = crypto_shash_blocksize(parent);
__be64 *consts = PTR_ALIGN((void *)ctx->ctx, alignmask + 1);
__be64 *consts = PTR_ALIGN((void *)ctx->ctx,
(alignmask | (__alignof__(__be64) - 1)) + 1);
u64 _const[2];
int i, err = 0;
u8 msb_mask, gfmask;
@ -173,7 +174,8 @@ static int crypto_cmac_digest_final(struct shash_desc *pdesc, u8 *out)
struct cmac_desc_ctx *ctx = shash_desc_ctx(pdesc);
struct crypto_cipher *tfm = tctx->child;
int bs = crypto_shash_blocksize(parent);
u8 *consts = PTR_ALIGN((void *)tctx->ctx, alignmask + 1);
u8 *consts = PTR_ALIGN((void *)tctx->ctx,
(alignmask | (__alignof__(__be64) - 1)) + 1);
u8 *odds = PTR_ALIGN((void *)ctx->ctx, alignmask + 1);
u8 *prev = odds + bs;
unsigned int offset = 0;
@ -243,6 +245,7 @@ static int cmac_create(struct crypto_template *tmpl, struct rtattr **tb)
case 8:
break;
default:
err = -EINVAL;
goto out_put_alg;
}
@ -257,7 +260,8 @@ static int cmac_create(struct crypto_template *tmpl, struct rtattr **tb)
if (err)
goto out_free_inst;
alignmask = alg->cra_alignmask | (sizeof(long) - 1);
/* We access the data as u32s when xoring. */
alignmask = alg->cra_alignmask | (__alignof__(u32) - 1);
inst->alg.base.cra_alignmask = alignmask;
inst->alg.base.cra_priority = alg->cra_priority;
inst->alg.base.cra_blocksize = alg->cra_blocksize;
@ -269,7 +273,9 @@ static int cmac_create(struct crypto_template *tmpl, struct rtattr **tb)
+ alg->cra_blocksize * 2;
inst->alg.base.cra_ctxsize =
ALIGN(sizeof(struct cmac_tfm_ctx), alignmask + 1)
ALIGN(sizeof(struct cmac_tfm_ctx), crypto_tfm_ctx_alignment())
+ ((alignmask | (__alignof__(__be64) - 1)) &
~(crypto_tfm_ctx_alignment() - 1))
+ alg->cra_blocksize * 2;
inst->alg.base.cra_init = cmac_init_tfm;

4
crypto/compress.c
View file

@ -42,7 +42,3 @@ int crypto_init_compress_ops(struct crypto_tfm *tfm)
return 0;
}
void crypto_exit_compress_ops(struct crypto_tfm *tfm)
{
}

286
crypto/cryptd.c
View file

@ -17,9 +17,9 @@
*
*/
#include <crypto/algapi.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
#include <crypto/cryptd.h>
#include <crypto/crypto_wq.h>
#include <linux/atomic.h>
@ -48,6 +48,11 @@ struct cryptd_instance_ctx {
struct cryptd_queue *queue;
};
struct skcipherd_instance_ctx {
struct crypto_skcipher_spawn spawn;
struct cryptd_queue *queue;
};
struct hashd_instance_ctx {
struct crypto_shash_spawn spawn;
struct cryptd_queue *queue;
@ -67,6 +72,15 @@ struct cryptd_blkcipher_request_ctx {
crypto_completion_t complete;
};
struct cryptd_skcipher_ctx {
atomic_t refcnt;
struct crypto_skcipher *child;
};
struct cryptd_skcipher_request_ctx {
crypto_completion_t complete;
};
struct cryptd_hash_ctx {
atomic_t refcnt;
struct crypto_shash *child;
@ -122,7 +136,6 @@ static int cryptd_enqueue_request(struct cryptd_queue *queue,
{
int cpu, err;
struct cryptd_cpu_queue *cpu_queue;
struct crypto_tfm *tfm;
atomic_t *refcnt;
bool may_backlog;
@ -141,7 +154,6 @@ static int cryptd_enqueue_request(struct cryptd_queue *queue,
if (!atomic_read(refcnt))
goto out_put_cpu;
tfm = request->tfm;
atomic_inc(refcnt);
out_put_cpu:
@ -432,6 +444,216 @@ static int cryptd_create_blkcipher(struct crypto_template *tmpl,
return err;
}
static int cryptd_skcipher_setkey(struct crypto_skcipher *parent,
const u8 *key, unsigned int keylen)
{
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(parent);
struct crypto_skcipher *child = ctx->child;
int err;
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(child, key, keylen);
crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
static void cryptd_skcipher_complete(struct skcipher_request *req, int err)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct cryptd_skcipher_request_ctx *rctx = skcipher_request_ctx(req);
int refcnt = atomic_read(&ctx->refcnt);
local_bh_disable();
rctx->complete(&req->base, err);
local_bh_enable();
if (err != -EINPROGRESS && refcnt && atomic_dec_and_test(&ctx->refcnt))
crypto_free_skcipher(tfm);
}
static void cryptd_skcipher_encrypt(struct crypto_async_request *base,
int err)
{
struct skcipher_request *req = skcipher_request_cast(base);
struct cryptd_skcipher_request_ctx *rctx = skcipher_request_ctx(req);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *child = ctx->child;
SKCIPHER_REQUEST_ON_STACK(subreq, child);
if (unlikely(err == -EINPROGRESS))
goto out;
skcipher_request_set_tfm(subreq, child);
skcipher_request_set_callback(subreq, CRYPTO_TFM_REQ_MAY_SLEEP,
NULL, NULL);
skcipher_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
req->iv);
err = crypto_skcipher_encrypt(subreq);
skcipher_request_zero(subreq);
req->base.complete = rctx->complete;
out:
cryptd_skcipher_complete(req, err);
}
static void cryptd_skcipher_decrypt(struct crypto_async_request *base,
int err)
{
struct skcipher_request *req = skcipher_request_cast(base);
struct cryptd_skcipher_request_ctx *rctx = skcipher_request_ctx(req);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *child = ctx->child;
SKCIPHER_REQUEST_ON_STACK(subreq, child);
if (unlikely(err == -EINPROGRESS))
goto out;
skcipher_request_set_tfm(subreq, child);
skcipher_request_set_callback(subreq, CRYPTO_TFM_REQ_MAY_SLEEP,
NULL, NULL);
skcipher_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
req->iv);
err = crypto_skcipher_decrypt(subreq);
skcipher_request_zero(subreq);
req->base.complete = rctx->complete;
out:
cryptd_skcipher_complete(req, err);
}
static int cryptd_skcipher_enqueue(struct skcipher_request *req,
crypto_completion_t compl)
{
struct cryptd_skcipher_request_ctx *rctx = skcipher_request_ctx(req);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct cryptd_queue *queue;
queue = cryptd_get_queue(crypto_skcipher_tfm(tfm));
rctx->complete = req->base.complete;
req->base.complete = compl;
return cryptd_enqueue_request(queue, &req->base);
}
static int cryptd_skcipher_encrypt_enqueue(struct skcipher_request *req)
{
return cryptd_skcipher_enqueue(req, cryptd_skcipher_encrypt);
}
static int cryptd_skcipher_decrypt_enqueue(struct skcipher_request *req)
{
return cryptd_skcipher_enqueue(req, cryptd_skcipher_decrypt);
}
static int cryptd_skcipher_init_tfm(struct crypto_skcipher *tfm)
{
struct skcipher_instance *inst = skcipher_alg_instance(tfm);
struct skcipherd_instance_ctx *ictx = skcipher_instance_ctx(inst);
struct crypto_skcipher_spawn *spawn = &ictx->spawn;
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *cipher;
cipher = crypto_spawn_skcipher(spawn);
if (IS_ERR(cipher))
return PTR_ERR(cipher);
ctx->child = cipher;
crypto_skcipher_set_reqsize(
tfm, sizeof(struct cryptd_skcipher_request_ctx));
return 0;
}
static void cryptd_skcipher_exit_tfm(struct crypto_skcipher *tfm)
{
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
crypto_free_skcipher(ctx->child);
}
static void cryptd_skcipher_free(struct skcipher_instance *inst)
{
struct skcipherd_instance_ctx *ctx = skcipher_instance_ctx(inst);
crypto_drop_skcipher(&ctx->spawn);
}
static int cryptd_create_skcipher(struct crypto_template *tmpl,
struct rtattr **tb,
struct cryptd_queue *queue)
{
struct skcipherd_instance_ctx *ctx;
struct skcipher_instance *inst;
struct skcipher_alg *alg;
const char *name;
u32 type;
u32 mask;
int err;
type = 0;
mask = CRYPTO_ALG_ASYNC;
cryptd_check_internal(tb, &type, &mask);
name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(name))
return PTR_ERR(name);
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
if (!inst)
return -ENOMEM;
ctx = skcipher_instance_ctx(inst);
ctx->queue = queue;
crypto_set_skcipher_spawn(&ctx->spawn, skcipher_crypto_instance(inst));
err = crypto_grab_skcipher(&ctx->spawn, name, type, mask);
if (err)
goto out_free_inst;
alg = crypto_spawn_skcipher_alg(&ctx->spawn);
err = cryptd_init_instance(skcipher_crypto_instance(inst), &alg->base);
if (err)
goto out_drop_skcipher;
inst->alg.base.cra_flags = CRYPTO_ALG_ASYNC |
(alg->base.cra_flags & CRYPTO_ALG_INTERNAL);
inst->alg.ivsize = crypto_skcipher_alg_ivsize(alg);
inst->alg.chunksize = crypto_skcipher_alg_chunksize(alg);
inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg);
inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(alg);
inst->alg.base.cra_ctxsize = sizeof(struct cryptd_skcipher_ctx);
inst->alg.init = cryptd_skcipher_init_tfm;
inst->alg.exit = cryptd_skcipher_exit_tfm;
inst->alg.setkey = cryptd_skcipher_setkey;
inst->alg.encrypt = cryptd_skcipher_encrypt_enqueue;
inst->alg.decrypt = cryptd_skcipher_decrypt_enqueue;
inst->free = cryptd_skcipher_free;
err = skcipher_register_instance(tmpl, inst);
if (err) {
out_drop_skcipher:
crypto_drop_skcipher(&ctx->spawn);
out_free_inst:
kfree(inst);
}
return err;
}
static int cryptd_hash_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
@ -895,7 +1117,11 @@ static int cryptd_create(struct crypto_template *tmpl, struct rtattr **tb)
switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) {
case CRYPTO_ALG_TYPE_BLKCIPHER:
return cryptd_create_blkcipher(tmpl, tb, &queue);
if ((algt->type & CRYPTO_ALG_TYPE_MASK) ==
CRYPTO_ALG_TYPE_BLKCIPHER)
return cryptd_create_blkcipher(tmpl, tb, &queue);
return cryptd_create_skcipher(tmpl, tb, &queue);
case CRYPTO_ALG_TYPE_DIGEST:
return cryptd_create_hash(tmpl, tb, &queue);
case CRYPTO_ALG_TYPE_AEAD:
@ -985,6 +1211,58 @@ void cryptd_free_ablkcipher(struct cryptd_ablkcipher *tfm)
}
EXPORT_SYMBOL_GPL(cryptd_free_ablkcipher);
struct cryptd_skcipher *cryptd_alloc_skcipher(const char *alg_name,
u32 type, u32 mask)
{
char cryptd_alg_name[CRYPTO_MAX_ALG_NAME];
struct cryptd_skcipher_ctx *ctx;
struct crypto_skcipher *tfm;
if (snprintf(cryptd_alg_name, CRYPTO_MAX_ALG_NAME,
"cryptd(%s)", alg_name) >= CRYPTO_MAX_ALG_NAME)
return ERR_PTR(-EINVAL);
tfm = crypto_alloc_skcipher(cryptd_alg_name, type, mask);
if (IS_ERR(tfm))
return ERR_CAST(tfm);
if (tfm->base.__crt_alg->cra_module != THIS_MODULE) {
crypto_free_skcipher(tfm);
return ERR_PTR(-EINVAL);
}
ctx = crypto_skcipher_ctx(tfm);
atomic_set(&ctx->refcnt, 1);
return container_of(tfm, struct cryptd_skcipher, base);
}
EXPORT_SYMBOL_GPL(cryptd_alloc_skcipher);
struct crypto_skcipher *cryptd_skcipher_child(struct cryptd_skcipher *tfm)
{
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(&tfm->base);
return ctx->child;
}
EXPORT_SYMBOL_GPL(cryptd_skcipher_child);
bool cryptd_skcipher_queued(struct cryptd_skcipher *tfm)
{
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(&tfm->base);
return atomic_read(&ctx->refcnt) - 1;
}
EXPORT_SYMBOL_GPL(cryptd_skcipher_queued);
void cryptd_free_skcipher(struct cryptd_skcipher *tfm)
{
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(&tfm->base);
if (atomic_dec_and_test(&ctx->refcnt))
crypto_free_skcipher(&tfm->base);
}
EXPORT_SYMBOL_GPL(cryptd_free_skcipher);
struct cryptd_ahash *cryptd_alloc_ahash(const char *alg_name,
u32 type, u32 mask)
{

26
crypto/crypto_engine.c
View file

@ -47,7 +47,7 @@ static void crypto_pump_requests(struct crypto_engine *engine,
/* If another context is idling then defer */
if (engine->idling) {
kthread_queue_work(&engine->kworker, &engine->pump_requests);
kthread_queue_work(engine->kworker, &engine->pump_requests);
goto out;
}
@ -58,7 +58,7 @@ static void crypto_pump_requests(struct crypto_engine *engine,
/* Only do teardown in the thread */
if (!in_kthread) {
kthread_queue_work(&engine->kworker,
kthread_queue_work(engine->kworker,
&engine->pump_requests);
goto out;
}
@ -189,7 +189,7 @@ int crypto_transfer_cipher_request(struct crypto_engine *engine,
ret = ablkcipher_enqueue_request(&engine->queue, req);
if (!engine->busy && need_pump)
kthread_queue_work(&engine->kworker, &engine->pump_requests);
kthread_queue_work(engine->kworker, &engine->pump_requests);
spin_unlock_irqrestore(&engine->queue_lock, flags);
return ret;
@ -231,7 +231,7 @@ int crypto_transfer_hash_request(struct crypto_engine *engine,
ret = ahash_enqueue_request(&engine->queue, req);
if (!engine->busy && need_pump)
kthread_queue_work(&engine->kworker, &engine->pump_requests);
kthread_queue_work(engine->kworker, &engine->pump_requests);
spin_unlock_irqrestore(&engine->queue_lock, flags);
return ret;
@ -284,7 +284,7 @@ void crypto_finalize_cipher_request(struct crypto_engine *engine,
req->base.complete(&req->base, err);
kthread_queue_work(&engine->kworker, &engine->pump_requests);
kthread_queue_work(engine->kworker, &engine->pump_requests);
}
EXPORT_SYMBOL_GPL(crypto_finalize_cipher_request);
@ -321,7 +321,7 @@ void crypto_finalize_hash_request(struct crypto_engine *engine,
req->base.complete(&req->base, err);
kthread_queue_work(&engine->kworker, &engine->pump_requests);
kthread_queue_work(engine->kworker, &engine->pump_requests);
}
EXPORT_SYMBOL_GPL(crypto_finalize_hash_request);
@ -345,7 +345,7 @@ int crypto_engine_start(struct crypto_engine *engine)
engine->running = true;
spin_unlock_irqrestore(&engine->queue_lock, flags);
kthread_queue_work(&engine->kworker, &engine->pump_requests);
kthread_queue_work(engine->kworker, &engine->pump_requests);
return 0;
}
@ -422,11 +422,8 @@ struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt)
crypto_init_queue(&engine->queue, CRYPTO_ENGINE_MAX_QLEN);
spin_lock_init(&engine->queue_lock);
kthread_init_worker(&engine->kworker);
engine->kworker_task = kthread_run(kthread_worker_fn,
&engine->kworker, "%s",
engine->name);
if (IS_ERR(engine->kworker_task)) {
engine->kworker = kthread_create_worker(0, "%s", engine->name);
if (IS_ERR(engine->kworker)) {
dev_err(dev, "failed to create crypto request pump task\n");
return NULL;
}
@ -434,7 +431,7 @@ struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt)
if (engine->rt) {
dev_info(dev, "will run requests pump with realtime priority\n");
sched_setscheduler(engine->kworker_task, SCHED_FIFO, &param);
sched_setscheduler(engine->kworker->task, SCHED_FIFO, &param);
}
return engine;
@ -455,8 +452,7 @@ int crypto_engine_exit(struct crypto_engine *engine)
if (ret)
return ret;
kthread_flush_worker(&engine->kworker);
kthread_stop(engine->kworker_task);
kthread_destroy_worker(engine->kworker);
return 0;
}

19
crypto/crypto_user.c
View file

@ -112,6 +112,21 @@ static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg)
return -EMSGSIZE;
}
static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_acomp racomp;
strncpy(racomp.type, "acomp", sizeof(racomp.type));
if (nla_put(skb, CRYPTOCFGA_REPORT_ACOMP,
sizeof(struct crypto_report_acomp), &racomp))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_akcipher rakcipher;
@ -186,7 +201,11 @@ static int crypto_report_one(struct crypto_alg *alg,
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_ACOMPRESS:
if (crypto_report_acomp(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_AKCIPHER:
if (crypto_report_akcipher(skb, alg))
goto nla_put_failure;

8
crypto/ctr.c
View file

@ -312,7 +312,7 @@ static int crypto_rfc3686_init_tfm(struct crypto_skcipher *tfm)
unsigned long align;
unsigned int reqsize;
cipher = crypto_spawn_skcipher2(spawn);
cipher = crypto_spawn_skcipher(spawn);
if (IS_ERR(cipher))
return PTR_ERR(cipher);
@ -370,9 +370,9 @@ static int crypto_rfc3686_create(struct crypto_template *tmpl,
spawn = skcipher_instance_ctx(inst);
crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst));
err = crypto_grab_skcipher2(spawn, cipher_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
err = crypto_grab_skcipher(spawn, cipher_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err)
goto err_free_inst;

8
crypto/cts.c
View file

@ -290,7 +290,7 @@ static int crypto_cts_init_tfm(struct crypto_skcipher *tfm)
unsigned bsize;
unsigned align;
cipher = crypto_spawn_skcipher2(spawn);
cipher = crypto_spawn_skcipher(spawn);
if (IS_ERR(cipher))
return PTR_ERR(cipher);
@ -348,9 +348,9 @@ static int crypto_cts_create(struct crypto_template *tmpl, struct rtattr **tb)
spawn = skcipher_instance_ctx(inst);
crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst));
err = crypto_grab_skcipher2(spawn, cipher_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
err = crypto_grab_skcipher(spawn, cipher_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err)
goto err_free_inst;

111
crypto/deflate.c
View file

@ -32,6 +32,7 @@
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/net.h>
#include <crypto/internal/scompress.h>
#define DEFLATE_DEF_LEVEL Z_DEFAULT_COMPRESSION
#define DEFLATE_DEF_WINBITS 11
@ -101,9 +102,8 @@ static void deflate_decomp_exit(struct deflate_ctx *ctx)
vfree(ctx->decomp_stream.workspace);
}
static int deflate_init(struct crypto_tfm *tfm)
static int __deflate_init(void *ctx)
{
struct deflate_ctx *ctx = crypto_tfm_ctx(tfm);
int ret;
ret = deflate_comp_init(ctx);
@ -116,19 +116,55 @@ static int deflate_init(struct crypto_tfm *tfm)
return ret;
}
static void deflate_exit(struct crypto_tfm *tfm)
static void *deflate_alloc_ctx(struct crypto_scomp *tfm)
{
struct deflate_ctx *ctx;
int ret;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return ERR_PTR(-ENOMEM);
ret = __deflate_init(ctx);
if (ret) {
kfree(ctx);
return ERR_PTR(ret);
}
return ctx;
}
static int deflate_init(struct crypto_tfm *tfm)
{
struct deflate_ctx *ctx = crypto_tfm_ctx(tfm);
return __deflate_init(ctx);
}
static void __deflate_exit(void *ctx)
{
deflate_comp_exit(ctx);
deflate_decomp_exit(ctx);
}
static int deflate_compress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
static void deflate_free_ctx(struct crypto_scomp *tfm, void *ctx)
{
__deflate_exit(ctx);
kzfree(ctx);
}
static void deflate_exit(struct crypto_tfm *tfm)
{
struct deflate_ctx *ctx = crypto_tfm_ctx(tfm);
__deflate_exit(ctx);
}
static int __deflate_compress(const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
int ret = 0;
struct deflate_ctx *dctx = crypto_tfm_ctx(tfm);
struct deflate_ctx *dctx = ctx;
struct z_stream_s *stream = &dctx->comp_stream;
ret = zlib_deflateReset(stream);
@ -153,12 +189,27 @@ static int deflate_compress(struct crypto_tfm *tfm, const u8 *src,
return ret;
}
static int deflate_decompress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
static int deflate_compress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
{
struct deflate_ctx *dctx = crypto_tfm_ctx(tfm);
return __deflate_compress(src, slen, dst, dlen, dctx);
}
static int deflate_scompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
{
return __deflate_compress(src, slen, dst, dlen, ctx);
}
static int __deflate_decompress(const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
int ret = 0;
struct deflate_ctx *dctx = crypto_tfm_ctx(tfm);
struct deflate_ctx *dctx = ctx;
struct z_stream_s *stream = &dctx->decomp_stream;
ret = zlib_inflateReset(stream);
@ -194,6 +245,21 @@ static int deflate_decompress(struct crypto_tfm *tfm, const u8 *src,
return ret;
}
static int deflate_decompress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
{
struct deflate_ctx *dctx = crypto_tfm_ctx(tfm);
return __deflate_decompress(src, slen, dst, dlen, dctx);
}
static int deflate_sdecompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
{
return __deflate_decompress(src, slen, dst, dlen, ctx);
}
static struct crypto_alg alg = {
.cra_name = "deflate",
.cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
@ -206,14 +272,39 @@ static struct crypto_alg alg = {
.coa_decompress = deflate_decompress } }
};
static struct scomp_alg scomp = {
.alloc_ctx = deflate_alloc_ctx,
.free_ctx = deflate_free_ctx,
.compress = deflate_scompress,
.decompress = deflate_sdecompress,
.base = {
.cra_name = "deflate",
.cra_driver_name = "deflate-scomp",
.cra_module = THIS_MODULE,
}
};
static int __init deflate_mod_init(void)
{
return crypto_register_alg(&alg);
int ret;
ret = crypto_register_alg(&alg);
if (ret)
return ret;
ret = crypto_register_scomp(&scomp);
if (ret) {
crypto_unregister_alg(&alg);
return ret;
}
return ret;
}
static void __exit deflate_mod_fini(void)
{
crypto_unregister_alg(&alg);
crypto_unregister_scomp(&scomp);
}
module_init(deflate_mod_init);

2
crypto/dh.c
View file

@ -118,7 +118,7 @@ static int dh_compute_value(struct kpp_request *req)
if (req->src) {
base = mpi_read_raw_from_sgl(req->src, req->src_len);
if (!base) {
ret = EINVAL;
ret = -EINVAL;
goto err_free_val;
}
} else {

1
crypto/drbg.c
View file

@ -1782,6 +1782,7 @@ static int drbg_kcapi_sym_ctr(struct drbg_state *drbg,
memcpy(outbuf, drbg->outscratchpad, cryptlen);
outlen -= cryptlen;
outbuf += cryptlen;
}
ret = 0;

10
crypto/gcm.c
View file

@ -575,7 +575,7 @@ static int crypto_gcm_init_tfm(struct crypto_aead *tfm)
if (IS_ERR(ghash))
return PTR_ERR(ghash);
ctr = crypto_spawn_skcipher2(&ictx->ctr);
ctr = crypto_spawn_skcipher(&ictx->ctr);
err = PTR_ERR(ctr);
if (IS_ERR(ctr))
goto err_free_hash;
@ -663,20 +663,20 @@ static int crypto_gcm_create_common(struct crypto_template *tmpl,
goto err_drop_ghash;
crypto_set_skcipher_spawn(&ctx->ctr, aead_crypto_instance(inst));
err = crypto_grab_skcipher2(&ctx->ctr, ctr_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
err = crypto_grab_skcipher(&ctx->ctr, ctr_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err)
goto err_drop_ghash;
ctr = crypto_spawn_skcipher_alg(&ctx->ctr);
/* We only support 16-byte blocks. */
err = -EINVAL;
if (crypto_skcipher_alg_ivsize(ctr) != 16)
goto out_put_ctr;
/* Not a stream cipher? */
err = -EINVAL;
if (ctr->base.cra_blocksize != 1)
goto out_put_ctr;

59
crypto/gf128mul.c
View file

@ -263,48 +263,6 @@ EXPORT_SYMBOL(gf128mul_bbe);
* t[1][BYTE] contains g*x^8*BYTE
* ..
* t[15][BYTE] contains g*x^120*BYTE */
struct gf128mul_64k *gf128mul_init_64k_lle(const be128 *g)
{
struct gf128mul_64k *t;
int i, j, k;
t = kzalloc(sizeof(*t), GFP_KERNEL);
if (!t)
goto out;
for (i = 0; i < 16; i++) {
t->t[i] = kzalloc(sizeof(*t->t[i]), GFP_KERNEL);
if (!t->t[i]) {
gf128mul_free_64k(t);
t = NULL;
goto out;
}
}
t->t[0]->t[128] = *g;
for (j = 64; j > 0; j >>= 1)
gf128mul_x_lle(&t->t[0]->t[j], &t->t[0]->t[j + j]);
for (i = 0;;) {
for (j = 2; j < 256; j += j)
for (k = 1; k < j; ++k)
be128_xor(&t->t[i]->t[j + k],
&t->t[i]->t[j], &t->t[i]->t[k]);
if (++i >= 16)
break;
for (j = 128; j > 0; j >>= 1) {
t->t[i]->t[j] = t->t[i - 1]->t[j];
gf128mul_x8_lle(&t->t[i]->t[j]);
}
}
out:
return t;
}
EXPORT_SYMBOL(gf128mul_init_64k_lle);
struct gf128mul_64k *gf128mul_init_64k_bbe(const be128 *g)
{
struct gf128mul_64k *t;
@ -352,24 +310,11 @@ void gf128mul_free_64k(struct gf128mul_64k *t)
int i;
for (i = 0; i < 16; i++)
kfree(t->t[i]);
kfree(t);
kzfree(t->t[i]);
kzfree(t);
}
EXPORT_SYMBOL(gf128mul_free_64k);
void gf128mul_64k_lle(be128 *a, struct gf128mul_64k *t)
{
u8 *ap = (u8 *)a;
be128 r[1];
int i;
*r = t->t[0]->t[ap[0]];
for (i = 1; i < 16; ++i)
be128_xor(r, r, &t->t[i]->t[ap[i]]);
*a = *r;
}
EXPORT_SYMBOL(gf128mul_64k_lle);
void gf128mul_64k_bbe(be128 *a, struct gf128mul_64k *t)
{
u8 *ap = (u8 *)a;

3
crypto/internal.h
View file

@ -76,9 +76,6 @@ struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
int crypto_init_cipher_ops(struct crypto_tfm *tfm);
int crypto_init_compress_ops(struct crypto_tfm *tfm);
void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
void crypto_exit_compress_ops(struct crypto_tfm *tfm);
struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
void crypto_larval_kill(struct crypto_alg *alg);
struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask);

1
crypto/jitterentropy-kcapi.c
View file

@ -39,7 +39,6 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/fips.h>
#include <linux/time.h>
#include <linux/crypto.h>

527
crypto/lrw.c
View file

@ -17,7 +17,8 @@
*
* The test vectors are included in the testing module tcrypt.[ch] */
#include <crypto/algapi.h>
#include <crypto/internal/skcipher.h>
#include <crypto/scatterwalk.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
@ -29,11 +30,30 @@
#include <crypto/gf128mul.h>
#include <crypto/lrw.h>
#define LRW_BUFFER_SIZE 128u
struct priv {
struct crypto_cipher *child;
struct crypto_skcipher *child;
struct lrw_table_ctx table;
};
struct rctx {
be128 buf[LRW_BUFFER_SIZE / sizeof(be128)];
be128 t;
be128 *ext;
struct scatterlist srcbuf[2];
struct scatterlist dstbuf[2];
struct scatterlist *src;
struct scatterlist *dst;
unsigned int left;
struct skcipher_request subreq;
};
static inline void setbit128_bbe(void *b, int bit)
{
__set_bit(bit ^ (0x80 -
@ -76,32 +96,26 @@ void lrw_free_table(struct lrw_table_ctx *ctx)
}
EXPORT_SYMBOL_GPL(lrw_free_table);
static int setkey(struct crypto_tfm *parent, const u8 *key,
static int setkey(struct crypto_skcipher *parent, const u8 *key,
unsigned int keylen)
{
struct priv *ctx = crypto_tfm_ctx(parent);
struct crypto_cipher *child = ctx->child;
struct priv *ctx = crypto_skcipher_ctx(parent);
struct crypto_skcipher *child = ctx->child;
int err, bsize = LRW_BLOCK_SIZE;
const u8 *tweak = key + keylen - bsize;
crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(child, crypto_tfm_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_cipher_setkey(child, key, keylen - bsize);
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(child, key, keylen - bsize);
crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
if (err)
return err;
crypto_tfm_set_flags(parent, crypto_cipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return lrw_init_table(&ctx->table, tweak);
}
struct sinfo {
be128 t;
struct crypto_tfm *tfm;
void (*fn)(struct crypto_tfm *, u8 *, const u8 *);
};
static inline void inc(be128 *iv)
{
be64_add_cpu(&iv->b, 1);
@ -109,13 +123,6 @@ static inline void inc(be128 *iv)
be64_add_cpu(&iv->a, 1);
}
static inline void lrw_round(struct sinfo *s, void *dst, const void *src)
{
be128_xor(dst, &s->t, src); /* PP <- T xor P */
s->fn(s->tfm, dst, dst); /* CC <- E(Key2,PP) */
be128_xor(dst, dst, &s->t); /* C <- T xor CC */
}
/* this returns the number of consequative 1 bits starting
* from the right, get_index128(00 00 00 00 00 00 ... 00 00 10 FB) = 2 */
static inline int get_index128(be128 *block)
@ -135,83 +142,263 @@ static inline int get_index128(be128 *block)
return x;
}
static int crypt(struct blkcipher_desc *d,
struct blkcipher_walk *w, struct priv *ctx,
void (*fn)(struct crypto_tfm *, u8 *, const u8 *))
static int post_crypt(struct skcipher_request *req)
{
int err;
unsigned int avail;
struct rctx *rctx = skcipher_request_ctx(req);
be128 *buf = rctx->ext ?: rctx->buf;
struct skcipher_request *subreq;
const int bs = LRW_BLOCK_SIZE;
struct sinfo s = {
.tfm = crypto_cipher_tfm(ctx->child),
.fn = fn
};
be128 *iv;
u8 *wsrc;
u8 *wdst;
struct skcipher_walk w;
struct scatterlist *sg;
unsigned offset;
int err;
err = blkcipher_walk_virt(d, w);
if (!(avail = w->nbytes))
return err;
subreq = &rctx->subreq;
err = skcipher_walk_virt(&w, subreq, false);
wsrc = w->src.virt.addr;
wdst = w->dst.virt.addr;
while (w.nbytes) {
unsigned int avail = w.nbytes;
be128 *wdst;
/* calculate first value of T */
iv = (be128 *)w->iv;
s.t = *iv;
wdst = w.dst.virt.addr;
/* T <- I*Key2 */
gf128mul_64k_bbe(&s.t, ctx->table.table);
goto first;
for (;;) {
do {
/* T <- I*Key2, using the optimization
* discussed in the specification */
be128_xor(&s.t, &s.t,
&ctx->table.mulinc[get_index128(iv)]);
inc(iv);
first:
lrw_round(&s, wdst, wsrc);
wsrc += bs;
wdst += bs;
be128_xor(wdst, buf++, wdst);
wdst++;
} while ((avail -= bs) >= bs);
err = blkcipher_walk_done(d, w, avail);
if (!(avail = w->nbytes))
break;
wsrc = w->src.virt.addr;
wdst = w->dst.virt.addr;
err = skcipher_walk_done(&w, avail);
}
rctx->left -= subreq->cryptlen;
if (err || !rctx->left)
goto out;
rctx->dst = rctx->dstbuf;
scatterwalk_done(&w.out, 0, 1);
sg = w.out.sg;
offset = w.out.offset;
if (rctx->dst != sg) {
rctx->dst[0] = *sg;
sg_unmark_end(rctx->dst);
scatterwalk_crypto_chain(rctx->dst, sg_next(sg), 0, 2);
}
rctx->dst[0].length -= offset - sg->offset;
rctx->dst[0].offset = offset;
out:
return err;
}
static int encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int pre_crypt(struct skcipher_request *req)
{
struct priv *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk w;
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct rctx *rctx = skcipher_request_ctx(req);
struct priv *ctx = crypto_skcipher_ctx(tfm);
be128 *buf = rctx->ext ?: rctx->buf;
struct skcipher_request *subreq;
const int bs = LRW_BLOCK_SIZE;
struct skcipher_walk w;
struct scatterlist *sg;
unsigned cryptlen;
unsigned offset;
be128 *iv;
bool more;
int err;
blkcipher_walk_init(&w, dst, src, nbytes);
return crypt(desc, &w, ctx,
crypto_cipher_alg(ctx->child)->cia_encrypt);
subreq = &rctx->subreq;
skcipher_request_set_tfm(subreq, tfm);
cryptlen = subreq->cryptlen;
more = rctx->left > cryptlen;
if (!more)
cryptlen = rctx->left;
skcipher_request_set_crypt(subreq, rctx->src, rctx->dst,
cryptlen, req->iv);
err = skcipher_walk_virt(&w, subreq, false);
iv = w.iv;
while (w.nbytes) {
unsigned int avail = w.nbytes;
be128 *wsrc;
be128 *wdst;
wsrc = w.src.virt.addr;
wdst = w.dst.virt.addr;
do {
*buf++ = rctx->t;
be128_xor(wdst++, &rctx->t, wsrc++);
/* T <- I*Key2, using the optimization
* discussed in the specification */
be128_xor(&rctx->t, &rctx->t,
&ctx->table.mulinc[get_index128(iv)]);
inc(iv);
} while ((avail -= bs) >= bs);
err = skcipher_walk_done(&w, avail);
}
skcipher_request_set_tfm(subreq, ctx->child);
skcipher_request_set_crypt(subreq, rctx->dst, rctx->dst,
cryptlen, NULL);
if (err || !more)
goto out;
rctx->src = rctx->srcbuf;
scatterwalk_done(&w.in, 0, 1);
sg = w.in.sg;
offset = w.in.offset;
if (rctx->src != sg) {
rctx->src[0] = *sg;
sg_unmark_end(rctx->src);
scatterwalk_crypto_chain(rctx->src, sg_next(sg), 0, 2);
}
rctx->src[0].length -= offset - sg->offset;
rctx->src[0].offset = offset;
out:
return err;
}
static int decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int init_crypt(struct skcipher_request *req, crypto_completion_t done)
{
struct priv *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk w;
struct priv *ctx = crypto_skcipher_ctx(crypto_skcipher_reqtfm(req));
struct rctx *rctx = skcipher_request_ctx(req);
struct skcipher_request *subreq;
gfp_t gfp;
blkcipher_walk_init(&w, dst, src, nbytes);
return crypt(desc, &w, ctx,
crypto_cipher_alg(ctx->child)->cia_decrypt);
subreq = &rctx->subreq;
skcipher_request_set_callback(subreq, req->base.flags, done, req);
gfp = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
rctx->ext = NULL;
subreq->cryptlen = LRW_BUFFER_SIZE;
if (req->cryptlen > LRW_BUFFER_SIZE) {
subreq->cryptlen = min(req->cryptlen, (unsigned)PAGE_SIZE);
rctx->ext = kmalloc(subreq->cryptlen, gfp);
}
rctx->src = req->src;
rctx->dst = req->dst;
rctx->left = req->cryptlen;
/* calculate first value of T */
memcpy(&rctx->t, req->iv, sizeof(rctx->t));
/* T <- I*Key2 */
gf128mul_64k_bbe(&rctx->t, ctx->table.table);
return 0;
}
static void exit_crypt(struct skcipher_request *req)
{
struct rctx *rctx = skcipher_request_ctx(req);
rctx->left = 0;
if (rctx->ext)
kfree(rctx->ext);
}
static int do_encrypt(struct skcipher_request *req, int err)
{
struct rctx *rctx = skcipher_request_ctx(req);
struct skcipher_request *subreq;
subreq = &rctx->subreq;
while (!err && rctx->left) {
err = pre_crypt(req) ?:
crypto_skcipher_encrypt(subreq) ?:
post_crypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY &&
req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
return err;
}
exit_crypt(req);
return err;
}
static void encrypt_done(struct crypto_async_request *areq, int err)
{
struct skcipher_request *req = areq->data;
struct skcipher_request *subreq;
struct rctx *rctx;
rctx = skcipher_request_ctx(req);
subreq = &rctx->subreq;
subreq->base.flags &= CRYPTO_TFM_REQ_MAY_BACKLOG;
err = do_encrypt(req, err ?: post_crypt(req));
if (rctx->left)
return;
skcipher_request_complete(req, err);
}
static int encrypt(struct skcipher_request *req)
{
return do_encrypt(req, init_crypt(req, encrypt_done));
}
static int do_decrypt(struct skcipher_request *req, int err)
{
struct rctx *rctx = skcipher_request_ctx(req);
struct skcipher_request *subreq;
subreq = &rctx->subreq;
while (!err && rctx->left) {
err = pre_crypt(req) ?:
crypto_skcipher_decrypt(subreq) ?:
post_crypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY &&
req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
return err;
}
exit_crypt(req);
return err;
}
static void decrypt_done(struct crypto_async_request *areq, int err)
{
struct skcipher_request *req = areq->data;
struct skcipher_request *subreq;
struct rctx *rctx;
rctx = skcipher_request_ctx(req);
subreq = &rctx->subreq;
subreq->base.flags &= CRYPTO_TFM_REQ_MAY_BACKLOG;
err = do_decrypt(req, err ?: post_crypt(req));
if (rctx->left)
return;
skcipher_request_complete(req, err);
}
static int decrypt(struct skcipher_request *req)
{
return do_decrypt(req, init_crypt(req, decrypt_done));
}
int lrw_crypt(struct blkcipher_desc *desc, struct scatterlist *sdst,
@ -293,95 +480,161 @@ int lrw_crypt(struct blkcipher_desc *desc, struct scatterlist *sdst,
}
EXPORT_SYMBOL_GPL(lrw_crypt);
static int init_tfm(struct crypto_tfm *tfm)
static int init_tfm(struct crypto_skcipher *tfm)
{
struct crypto_cipher *cipher;
struct crypto_instance *inst = (void *)tfm->__crt_alg;
struct crypto_spawn *spawn = crypto_instance_ctx(inst);
struct priv *ctx = crypto_tfm_ctx(tfm);
u32 *flags = &tfm->crt_flags;
struct skcipher_instance *inst = skcipher_alg_instance(tfm);
struct crypto_skcipher_spawn *spawn = skcipher_instance_ctx(inst);
struct priv *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *cipher;
cipher = crypto_spawn_cipher(spawn);
cipher = crypto_spawn_skcipher(spawn);
if (IS_ERR(cipher))
return PTR_ERR(cipher);
if (crypto_cipher_blocksize(cipher) != LRW_BLOCK_SIZE) {
*flags |= CRYPTO_TFM_RES_BAD_BLOCK_LEN;
crypto_free_cipher(cipher);
return -EINVAL;
}
ctx->child = cipher;
crypto_skcipher_set_reqsize(tfm, crypto_skcipher_reqsize(cipher) +
sizeof(struct rctx));
return 0;
}
static void exit_tfm(struct crypto_tfm *tfm)
static void exit_tfm(struct crypto_skcipher *tfm)
{
struct priv *ctx = crypto_tfm_ctx(tfm);
struct priv *ctx = crypto_skcipher_ctx(tfm);
lrw_free_table(&ctx->table);
crypto_free_cipher(ctx->child);
crypto_free_skcipher(ctx->child);
}
static struct crypto_instance *alloc(struct rtattr **tb)
static void free(struct skcipher_instance *inst)
{
struct crypto_instance *inst;
struct crypto_alg *alg;
crypto_drop_skcipher(skcipher_instance_ctx(inst));
kfree(inst);
}
static int create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct crypto_skcipher_spawn *spawn;
struct skcipher_instance *inst;
struct crypto_attr_type *algt;
struct skcipher_alg *alg;
const char *cipher_name;
char ecb_name[CRYPTO_MAX_ALG_NAME];
int err;
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return PTR_ERR(algt);
if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
return -EINVAL;
cipher_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(cipher_name))
return PTR_ERR(cipher_name);
inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
if (!inst)
return -ENOMEM;
spawn = skcipher_instance_ctx(inst);
crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst));
err = crypto_grab_skcipher(spawn, cipher_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err == -ENOENT) {
err = -ENAMETOOLONG;
if (snprintf(ecb_name, CRYPTO_MAX_ALG_NAME, "ecb(%s)",
cipher_name) >= CRYPTO_MAX_ALG_NAME)
goto err_free_inst;
err = crypto_grab_skcipher(spawn, ecb_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
}
if (err)
return ERR_PTR(err);
goto err_free_inst;
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
if (IS_ERR(alg))
return ERR_CAST(alg);
alg = crypto_skcipher_spawn_alg(spawn);
inst = crypto_alloc_instance("lrw", alg);
if (IS_ERR(inst))
goto out_put_alg;
err = -EINVAL;
if (alg->base.cra_blocksize != LRW_BLOCK_SIZE)
goto err_drop_spawn;
inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
inst->alg.cra_priority = alg->cra_priority;
inst->alg.cra_blocksize = alg->cra_blocksize;
if (crypto_skcipher_alg_ivsize(alg))
goto err_drop_spawn;
if (alg->cra_alignmask < 7) inst->alg.cra_alignmask = 7;
else inst->alg.cra_alignmask = alg->cra_alignmask;
inst->alg.cra_type = &crypto_blkcipher_type;
err = crypto_inst_setname(skcipher_crypto_instance(inst), "lrw",
&alg->base);
if (err)
goto err_drop_spawn;
if (!(alg->cra_blocksize % 4))
inst->alg.cra_alignmask |= 3;
inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;
inst->alg.cra_blkcipher.min_keysize =
alg->cra_cipher.cia_min_keysize + alg->cra_blocksize;
inst->alg.cra_blkcipher.max_keysize =
alg->cra_cipher.cia_max_keysize + alg->cra_blocksize;
err = -EINVAL;
cipher_name = alg->base.cra_name;
inst->alg.cra_ctxsize = sizeof(struct priv);
/* Alas we screwed up the naming so we have to mangle the
* cipher name.
*/
if (!strncmp(cipher_name, "ecb(", 4)) {
unsigned len;
inst->alg.cra_init = init_tfm;
inst->alg.cra_exit = exit_tfm;
len = strlcpy(ecb_name, cipher_name + 4, sizeof(ecb_name));
if (len < 2 || len >= sizeof(ecb_name))
goto err_drop_spawn;
inst->alg.cra_blkcipher.setkey = setkey;
inst->alg.cra_blkcipher.encrypt = encrypt;
inst->alg.cra_blkcipher.decrypt = decrypt;
if (ecb_name[len - 1] != ')')
goto err_drop_spawn;
out_put_alg:
crypto_mod_put(alg);
return inst;
}
ecb_name[len - 1] = 0;
static void free(struct crypto_instance *inst)
{
crypto_drop_spawn(crypto_instance_ctx(inst));
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
"lrw(%s)", ecb_name) >= CRYPTO_MAX_ALG_NAME)
return -ENAMETOOLONG;
}
inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;
inst->alg.base.cra_priority = alg->base.cra_priority;
inst->alg.base.cra_blocksize = LRW_BLOCK_SIZE;
inst->alg.base.cra_alignmask = alg->base.cra_alignmask |
(__alignof__(u64) - 1);
inst->alg.ivsize = LRW_BLOCK_SIZE;
inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg) +
LRW_BLOCK_SIZE;
inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(alg) +
LRW_BLOCK_SIZE;
inst->alg.base.cra_ctxsize = sizeof(struct priv);
inst->alg.init = init_tfm;
inst->alg.exit = exit_tfm;
inst->alg.setkey = setkey;
inst->alg.encrypt = encrypt;
inst->alg.decrypt = decrypt;
inst->free = free;
err = skcipher_register_instance(tmpl, inst);
if (err)
goto err_drop_spawn;
out:
return err;
err_drop_spawn:
crypto_drop_skcipher(spawn);
err_free_inst:
kfree(inst);
goto out;
}
static struct crypto_template crypto_tmpl = {
.name = "lrw",
.alloc = alloc,
.free = free,
.create = create,
.module = THIS_MODULE,
};

91
crypto/lz4.c
View file

@ -23,36 +23,53 @@
#include <linux/crypto.h>
#include <linux/vmalloc.h>
#include <linux/lz4.h>
#include <crypto/internal/scompress.h>
struct lz4_ctx {
void *lz4_comp_mem;
};
static void *lz4_alloc_ctx(struct crypto_scomp *tfm)
{
void *ctx;
ctx = vmalloc(LZ4_MEM_COMPRESS);
if (!ctx)
return ERR_PTR(-ENOMEM);
return ctx;
}
static int lz4_init(struct crypto_tfm *tfm)
{
struct lz4_ctx *ctx = crypto_tfm_ctx(tfm);
ctx->lz4_comp_mem = vmalloc(LZ4_MEM_COMPRESS);
if (!ctx->lz4_comp_mem)
ctx->lz4_comp_mem = lz4_alloc_ctx(NULL);
if (IS_ERR(ctx->lz4_comp_mem))
return -ENOMEM;
return 0;
}
static void lz4_free_ctx(struct crypto_scomp *tfm, void *ctx)
{
vfree(ctx);
}
static void lz4_exit(struct crypto_tfm *tfm)
{
struct lz4_ctx *ctx = crypto_tfm_ctx(tfm);
vfree(ctx->lz4_comp_mem);
lz4_free_ctx(NULL, ctx->lz4_comp_mem);
}
static int lz4_compress_crypto(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
static int __lz4_compress_crypto(const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
struct lz4_ctx *ctx = crypto_tfm_ctx(tfm);
size_t tmp_len = *dlen;
int err;
err = lz4_compress(src, slen, dst, &tmp_len, ctx->lz4_comp_mem);
err = lz4_compress(src, slen, dst, &tmp_len, ctx);
if (err < 0)
return -EINVAL;
@ -61,8 +78,23 @@ static int lz4_compress_crypto(struct crypto_tfm *tfm, const u8 *src,
return 0;
}
static int lz4_decompress_crypto(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
static int lz4_scompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
{
return __lz4_compress_crypto(src, slen, dst, dlen, ctx);
}
static int lz4_compress_crypto(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
{
struct lz4_ctx *ctx = crypto_tfm_ctx(tfm);
return __lz4_compress_crypto(src, slen, dst, dlen, ctx->lz4_comp_mem);
}
static int __lz4_decompress_crypto(const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
int err;
size_t tmp_len = *dlen;
@ -76,6 +108,20 @@ static int lz4_decompress_crypto(struct crypto_tfm *tfm, const u8 *src,
return err;
}
static int lz4_sdecompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
{
return __lz4_decompress_crypto(src, slen, dst, dlen, NULL);
}
static int lz4_decompress_crypto(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst,
unsigned int *dlen)
{
return __lz4_decompress_crypto(src, slen, dst, dlen, NULL);
}
static struct crypto_alg alg_lz4 = {
.cra_name = "lz4",
.cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
@ -89,14 +135,39 @@ static struct crypto_alg alg_lz4 = {
.coa_decompress = lz4_decompress_crypto } }
};
static struct scomp_alg scomp = {
.alloc_ctx = lz4_alloc_ctx,
.free_ctx = lz4_free_ctx,
.compress = lz4_scompress,
.decompress = lz4_sdecompress,
.base = {
.cra_name = "lz4",
.cra_driver_name = "lz4-scomp",
.cra_module = THIS_MODULE,
}
};
static int __init lz4_mod_init(void)
{
return crypto_register_alg(&alg_lz4);
int ret;
ret = crypto_register_alg(&alg_lz4);
if (ret)
return ret;
ret = crypto_register_scomp(&scomp);
if (ret) {
crypto_unregister_alg(&alg_lz4);
return ret;
}
return ret;
}
static void __exit lz4_mod_fini(void)
{
crypto_unregister_alg(&alg_lz4);
crypto_unregister_scomp(&scomp);
}
module_init(lz4_mod_init);

92
crypto/lz4hc.c
View file

@ -22,37 +22,53 @@
#include <linux/crypto.h>
#include <linux/vmalloc.h>
#include <linux/lz4.h>
#include <crypto/internal/scompress.h>
struct lz4hc_ctx {
void *lz4hc_comp_mem;
};
static void *lz4hc_alloc_ctx(struct crypto_scomp *tfm)
{
void *ctx;
ctx = vmalloc(LZ4HC_MEM_COMPRESS);
if (!ctx)
return ERR_PTR(-ENOMEM);
return ctx;
}
static int lz4hc_init(struct crypto_tfm *tfm)
{
struct lz4hc_ctx *ctx = crypto_tfm_ctx(tfm);
ctx->lz4hc_comp_mem = vmalloc(LZ4HC_MEM_COMPRESS);
if (!ctx->lz4hc_comp_mem)
ctx->lz4hc_comp_mem = lz4hc_alloc_ctx(NULL);
if (IS_ERR(ctx->lz4hc_comp_mem))
return -ENOMEM;
return 0;
}
static void lz4hc_free_ctx(struct crypto_scomp *tfm, void *ctx)
{
vfree(ctx);
}
static void lz4hc_exit(struct crypto_tfm *tfm)
{
struct lz4hc_ctx *ctx = crypto_tfm_ctx(tfm);
vfree(ctx->lz4hc_comp_mem);
lz4hc_free_ctx(NULL, ctx->lz4hc_comp_mem);
}
static int lz4hc_compress_crypto(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
static int __lz4hc_compress_crypto(const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
struct lz4hc_ctx *ctx = crypto_tfm_ctx(tfm);
size_t tmp_len = *dlen;
int err;
err = lz4hc_compress(src, slen, dst, &tmp_len, ctx->lz4hc_comp_mem);
err = lz4hc_compress(src, slen, dst, &tmp_len, ctx);
if (err < 0)
return -EINVAL;
@ -61,8 +77,25 @@ static int lz4hc_compress_crypto(struct crypto_tfm *tfm, const u8 *src,
return 0;
}
static int lz4hc_decompress_crypto(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
static int lz4hc_scompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
{
return __lz4hc_compress_crypto(src, slen, dst, dlen, ctx);
}
static int lz4hc_compress_crypto(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst,
unsigned int *dlen)
{
struct lz4hc_ctx *ctx = crypto_tfm_ctx(tfm);
return __lz4hc_compress_crypto(src, slen, dst, dlen,
ctx->lz4hc_comp_mem);
}
static int __lz4hc_decompress_crypto(const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
int err;
size_t tmp_len = *dlen;
@ -76,6 +109,20 @@ static int lz4hc_decompress_crypto(struct crypto_tfm *tfm, const u8 *src,
return err;
}
static int lz4hc_sdecompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
{
return __lz4hc_decompress_crypto(src, slen, dst, dlen, NULL);
}
static int lz4hc_decompress_crypto(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst,
unsigned int *dlen)
{
return __lz4hc_decompress_crypto(src, slen, dst, dlen, NULL);
}
static struct crypto_alg alg_lz4hc = {
.cra_name = "lz4hc",
.cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
@ -89,14 +136,39 @@ static struct crypto_alg alg_lz4hc = {
.coa_decompress = lz4hc_decompress_crypto } }
};
static struct scomp_alg scomp = {
.alloc_ctx = lz4hc_alloc_ctx,
.free_ctx = lz4hc_free_ctx,
.compress = lz4hc_scompress,
.decompress = lz4hc_sdecompress,
.base = {
.cra_name = "lz4hc",
.cra_driver_name = "lz4hc-scomp",
.cra_module = THIS_MODULE,
}
};
static int __init lz4hc_mod_init(void)
{
return crypto_register_alg(&alg_lz4hc);
int ret;
ret = crypto_register_alg(&alg_lz4hc);
if (ret)
return ret;
ret = crypto_register_scomp(&scomp);
if (ret) {
crypto_unregister_alg(&alg_lz4hc);
return ret;
}
return ret;
}
static void __exit lz4hc_mod_fini(void)
{
crypto_unregister_alg(&alg_lz4hc);
crypto_unregister_scomp(&scomp);
}
module_init(lz4hc_mod_init);

97
crypto/lzo.c
View file

@ -22,40 +22,55 @@
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <linux/lzo.h>
#include <crypto/internal/scompress.h>
struct lzo_ctx {
void *lzo_comp_mem;
};
static void *lzo_alloc_ctx(struct crypto_scomp *tfm)
{
void *ctx;
ctx = kmalloc(LZO1X_MEM_COMPRESS, GFP_KERNEL | __GFP_NOWARN);
if (!ctx)
ctx = vmalloc(LZO1X_MEM_COMPRESS);
if (!ctx)
return ERR_PTR(-ENOMEM);
return ctx;
}
static int lzo_init(struct crypto_tfm *tfm)
{
struct lzo_ctx *ctx = crypto_tfm_ctx(tfm);
ctx->lzo_comp_mem = kmalloc(LZO1X_MEM_COMPRESS,
GFP_KERNEL | __GFP_NOWARN);
if (!ctx->lzo_comp_mem)
ctx->lzo_comp_mem = vmalloc(LZO1X_MEM_COMPRESS);
if (!ctx->lzo_comp_mem)
ctx->lzo_comp_mem = lzo_alloc_ctx(NULL);
if (IS_ERR(ctx->lzo_comp_mem))
return -ENOMEM;
return 0;
}
static void lzo_free_ctx(struct crypto_scomp *tfm, void *ctx)
{
kvfree(ctx);
}
static void lzo_exit(struct crypto_tfm *tfm)
{
struct lzo_ctx *ctx = crypto_tfm_ctx(tfm);
kvfree(ctx->lzo_comp_mem);
lzo_free_ctx(NULL, ctx->lzo_comp_mem);
}
static int lzo_compress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
static int __lzo_compress(const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
struct lzo_ctx *ctx = crypto_tfm_ctx(tfm);
size_t tmp_len = *dlen; /* size_t(ulong) <-> uint on 64 bit */
int err;
err = lzo1x_1_compress(src, slen, dst, &tmp_len, ctx->lzo_comp_mem);
err = lzo1x_1_compress(src, slen, dst, &tmp_len, ctx);
if (err != LZO_E_OK)
return -EINVAL;
@ -64,8 +79,23 @@ static int lzo_compress(struct crypto_tfm *tfm, const u8 *src,
return 0;
}
static int lzo_decompress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
static int lzo_compress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
{
struct lzo_ctx *ctx = crypto_tfm_ctx(tfm);
return __lzo_compress(src, slen, dst, dlen, ctx->lzo_comp_mem);
}
static int lzo_scompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
{
return __lzo_compress(src, slen, dst, dlen, ctx);
}
static int __lzo_decompress(const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen)
{
int err;
size_t tmp_len = *dlen; /* size_t(ulong) <-> uint on 64 bit */
@ -77,7 +107,19 @@ static int lzo_decompress(struct crypto_tfm *tfm, const u8 *src,
*dlen = tmp_len;
return 0;
}
static int lzo_decompress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
{
return __lzo_decompress(src, slen, dst, dlen);
}
static int lzo_sdecompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
{
return __lzo_decompress(src, slen, dst, dlen);
}
static struct crypto_alg alg = {
@ -88,18 +130,43 @@ static struct crypto_alg alg = {
.cra_init = lzo_init,
.cra_exit = lzo_exit,
.cra_u = { .compress = {
.coa_compress = lzo_compress,
.coa_decompress = lzo_decompress } }
.coa_compress = lzo_compress,
.coa_decompress = lzo_decompress } }
};
static struct scomp_alg scomp = {
.alloc_ctx = lzo_alloc_ctx,
.free_ctx = lzo_free_ctx,
.compress = lzo_scompress,
.decompress = lzo_sdecompress,
.base = {
.cra_name = "lzo",
.cra_driver_name = "lzo-scomp",
.cra_module = THIS_MODULE,
}
};
static int __init lzo_mod_init(void)
{
return crypto_register_alg(&alg);
int ret;
ret = crypto_register_alg(&alg);
if (ret)
return ret;
ret = crypto_register_scomp(&scomp);
if (ret) {
crypto_unregister_alg(&alg);
return ret;
}
return ret;
}
static void __exit lzo_mod_fini(void)
{
crypto_unregister_alg(&alg);
crypto_unregister_scomp(&scomp);
}
module_init(lzo_mod_init);

201
crypto/pcbc.c
View file

@ -14,40 +14,37 @@
*
*/
#include <crypto/algapi.h>
#include <crypto/internal/skcipher.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
struct crypto_pcbc_ctx {
struct crypto_cipher *child;
};
static int crypto_pcbc_setkey(struct crypto_tfm *parent, const u8 *key,
static int crypto_pcbc_setkey(struct crypto_skcipher *parent, const u8 *key,
unsigned int keylen)
{
struct crypto_pcbc_ctx *ctx = crypto_tfm_ctx(parent);
struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(parent);
struct crypto_cipher *child = ctx->child;
int err;
crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(child, crypto_tfm_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_cipher_setkey(child, key, keylen);
crypto_tfm_set_flags(parent, crypto_cipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
crypto_skcipher_set_flags(parent, crypto_cipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
static int crypto_pcbc_encrypt_segment(struct blkcipher_desc *desc,
struct blkcipher_walk *walk,
static int crypto_pcbc_encrypt_segment(struct skcipher_request *req,
struct skcipher_walk *walk,
struct crypto_cipher *tfm)
{
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
crypto_cipher_alg(tfm)->cia_encrypt;
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
@ -56,7 +53,7 @@ static int crypto_pcbc_encrypt_segment(struct blkcipher_desc *desc,
do {
crypto_xor(iv, src, bsize);
fn(crypto_cipher_tfm(tfm), dst, iv);
crypto_cipher_encrypt_one(tfm, dst, iv);
memcpy(iv, dst, bsize);
crypto_xor(iv, src, bsize);
@ -67,12 +64,10 @@ static int crypto_pcbc_encrypt_segment(struct blkcipher_desc *desc,
return nbytes;
}
static int crypto_pcbc_encrypt_inplace(struct blkcipher_desc *desc,
struct blkcipher_walk *walk,
static int crypto_pcbc_encrypt_inplace(struct skcipher_request *req,
struct skcipher_walk *walk,
struct crypto_cipher *tfm)
{
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
crypto_cipher_alg(tfm)->cia_encrypt;
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
@ -82,7 +77,7 @@ static int crypto_pcbc_encrypt_inplace(struct blkcipher_desc *desc,
do {
memcpy(tmpbuf, src, bsize);
crypto_xor(iv, src, bsize);
fn(crypto_cipher_tfm(tfm), src, iv);
crypto_cipher_encrypt_one(tfm, src, iv);
memcpy(iv, tmpbuf, bsize);
crypto_xor(iv, src, bsize);
@ -94,38 +89,34 @@ static int crypto_pcbc_encrypt_inplace(struct blkcipher_desc *desc,
return nbytes;
}
static int crypto_pcbc_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int crypto_pcbc_encrypt(struct skcipher_request *req)
{
struct blkcipher_walk walk;
struct crypto_blkcipher *tfm = desc->tfm;
struct crypto_pcbc_ctx *ctx = crypto_blkcipher_ctx(tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_cipher *child = ctx->child;
struct skcipher_walk walk;
unsigned int nbytes;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, false);
while ((nbytes = walk.nbytes)) {
if (walk.src.virt.addr == walk.dst.virt.addr)
nbytes = crypto_pcbc_encrypt_inplace(desc, &walk,
nbytes = crypto_pcbc_encrypt_inplace(req, &walk,
child);
else
nbytes = crypto_pcbc_encrypt_segment(desc, &walk,
nbytes = crypto_pcbc_encrypt_segment(req, &walk,
child);
err = blkcipher_walk_done(desc, &walk, nbytes);
err = skcipher_walk_done(&walk, nbytes);
}
return err;
}
static int crypto_pcbc_decrypt_segment(struct blkcipher_desc *desc,
struct blkcipher_walk *walk,
static int crypto_pcbc_decrypt_segment(struct skcipher_request *req,
struct skcipher_walk *walk,
struct crypto_cipher *tfm)
{
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
crypto_cipher_alg(tfm)->cia_decrypt;
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
@ -133,7 +124,7 @@ static int crypto_pcbc_decrypt_segment(struct blkcipher_desc *desc,
u8 *iv = walk->iv;
do {
fn(crypto_cipher_tfm(tfm), dst, src);
crypto_cipher_decrypt_one(tfm, dst, src);
crypto_xor(dst, iv, bsize);
memcpy(iv, src, bsize);
crypto_xor(iv, dst, bsize);
@ -147,21 +138,19 @@ static int crypto_pcbc_decrypt_segment(struct blkcipher_desc *desc,
return nbytes;
}
static int crypto_pcbc_decrypt_inplace(struct blkcipher_desc *desc,
struct blkcipher_walk *walk,
static int crypto_pcbc_decrypt_inplace(struct skcipher_request *req,
struct skcipher_walk *walk,
struct crypto_cipher *tfm)
{
void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
crypto_cipher_alg(tfm)->cia_decrypt;
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
u8 *iv = walk->iv;
u8 tmpbuf[bsize];
u8 tmpbuf[bsize] __attribute__ ((aligned(__alignof__(u32))));
do {
memcpy(tmpbuf, src, bsize);
fn(crypto_cipher_tfm(tfm), src, src);
crypto_cipher_decrypt_one(tfm, src, src);
crypto_xor(src, iv, bsize);
memcpy(iv, tmpbuf, bsize);
crypto_xor(iv, src, bsize);
@ -174,37 +163,35 @@ static int crypto_pcbc_decrypt_inplace(struct blkcipher_desc *desc,
return nbytes;
}
static int crypto_pcbc_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
static int crypto_pcbc_decrypt(struct skcipher_request *req)
{
struct blkcipher_walk walk;
struct crypto_blkcipher *tfm = desc->tfm;
struct crypto_pcbc_ctx *ctx = crypto_blkcipher_ctx(tfm);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_cipher *child = ctx->child;
struct skcipher_walk walk;
unsigned int nbytes;
int err;
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
err = skcipher_walk_virt(&walk, req, false);
while ((nbytes = walk.nbytes)) {
if (walk.src.virt.addr == walk.dst.virt.addr)
nbytes = crypto_pcbc_decrypt_inplace(desc, &walk,
nbytes = crypto_pcbc_decrypt_inplace(req, &walk,
child);
else
nbytes = crypto_pcbc_decrypt_segment(desc, &walk,
nbytes = crypto_pcbc_decrypt_segment(req, &walk,
child);
err = blkcipher_walk_done(desc, &walk, nbytes);
err = skcipher_walk_done(&walk, nbytes);
}
return err;
}
static int crypto_pcbc_init_tfm(struct crypto_tfm *tfm)
static int crypto_pcbc_init_tfm(struct crypto_skcipher *tfm)
{
struct crypto_instance *inst = (void *)tfm->__crt_alg;
struct crypto_spawn *spawn = crypto_instance_ctx(inst);
struct crypto_pcbc_ctx *ctx = crypto_tfm_ctx(tfm);
struct skcipher_instance *inst = skcipher_alg_instance(tfm);
struct crypto_spawn *spawn = skcipher_instance_ctx(inst);
struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_cipher *cipher;
cipher = crypto_spawn_cipher(spawn);
@ -215,68 +202,98 @@ static int crypto_pcbc_init_tfm(struct crypto_tfm *tfm)
return 0;
}
static void crypto_pcbc_exit_tfm(struct crypto_tfm *tfm)
static void crypto_pcbc_exit_tfm(struct crypto_skcipher *tfm)
{
struct crypto_pcbc_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(tfm);
crypto_free_cipher(ctx->child);
}
static struct crypto_instance *crypto_pcbc_alloc(struct rtattr **tb)
static void crypto_pcbc_free(struct skcipher_instance *inst)
{
struct crypto_instance *inst;
crypto_drop_skcipher(skcipher_instance_ctx(inst));
kfree(inst);
}
static int crypto_pcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct skcipher_instance *inst;
struct crypto_attr_type *algt;
struct crypto_spawn *spawn;
struct crypto_alg *alg;
int err;
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
if (err)
return ERR_PTR(err);
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return PTR_ERR(algt);
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
if (((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask) &
~CRYPTO_ALG_INTERNAL)
return -EINVAL;
inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
if (!inst)
return -ENOMEM;
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER |
(algt->type & CRYPTO_ALG_INTERNAL),
CRYPTO_ALG_TYPE_MASK |
(algt->mask & CRYPTO_ALG_INTERNAL));
err = PTR_ERR(alg);
if (IS_ERR(alg))
return ERR_CAST(alg);
goto err_free_inst;
inst = crypto_alloc_instance("pcbc", alg);
if (IS_ERR(inst))
goto out_put_alg;
spawn = skcipher_instance_ctx(inst);
err = crypto_init_spawn(spawn, alg, skcipher_crypto_instance(inst),
CRYPTO_ALG_TYPE_MASK);
crypto_mod_put(alg);
if (err)
goto err_free_inst;
inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
inst->alg.cra_priority = alg->cra_priority;
inst->alg.cra_blocksize = alg->cra_blocksize;
inst->alg.cra_alignmask = alg->cra_alignmask;
inst->alg.cra_type = &crypto_blkcipher_type;
err = crypto_inst_setname(skcipher_crypto_instance(inst), "pcbc", alg);
if (err)
goto err_drop_spawn;
inst->alg.base.cra_flags = alg->cra_flags & CRYPTO_ALG_INTERNAL;
inst->alg.base.cra_priority = alg->cra_priority;
inst->alg.base.cra_blocksize = alg->cra_blocksize;
inst->alg.base.cra_alignmask = alg->cra_alignmask;
/* We access the data as u32s when xoring. */
inst->alg.cra_alignmask |= __alignof__(u32) - 1;
inst->alg.base.cra_alignmask |= __alignof__(u32) - 1;
inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;
inst->alg.cra_blkcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
inst->alg.cra_blkcipher.max_keysize = alg->cra_cipher.cia_max_keysize;
inst->alg.ivsize = alg->cra_blocksize;
inst->alg.min_keysize = alg->cra_cipher.cia_min_keysize;
inst->alg.max_keysize = alg->cra_cipher.cia_max_keysize;
inst->alg.cra_ctxsize = sizeof(struct crypto_pcbc_ctx);
inst->alg.base.cra_ctxsize = sizeof(struct crypto_pcbc_ctx);
inst->alg.cra_init = crypto_pcbc_init_tfm;
inst->alg.cra_exit = crypto_pcbc_exit_tfm;
inst->alg.init = crypto_pcbc_init_tfm;
inst->alg.exit = crypto_pcbc_exit_tfm;
inst->alg.cra_blkcipher.setkey = crypto_pcbc_setkey;
inst->alg.cra_blkcipher.encrypt = crypto_pcbc_encrypt;
inst->alg.cra_blkcipher.decrypt = crypto_pcbc_decrypt;
inst->alg.setkey = crypto_pcbc_setkey;
inst->alg.encrypt = crypto_pcbc_encrypt;
inst->alg.decrypt = crypto_pcbc_decrypt;
out_put_alg:
crypto_mod_put(alg);
return inst;
}
inst->free = crypto_pcbc_free;
static void crypto_pcbc_free(struct crypto_instance *inst)
{
crypto_drop_spawn(crypto_instance_ctx(inst));
err = skcipher_register_instance(tmpl, inst);
if (err)
goto err_drop_spawn;
out:
return err;
err_drop_spawn:
crypto_drop_spawn(spawn);
err_free_inst:
kfree(inst);
goto out;
}
static struct crypto_template crypto_pcbc_tmpl = {
.name = "pcbc",
.alloc = crypto_pcbc_alloc,
.free = crypto_pcbc_free,
.create = crypto_pcbc_create,
.module = THIS_MODULE,
};

34
crypto/poly1305_generic.c
View file

@ -17,6 +17,7 @@
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <asm/unaligned.h>
static inline u64 mlt(u64 a, u64 b)
{
@ -33,11 +34,6 @@ static inline u32 and(u32 v, u32 mask)
return v & mask;
}
static inline u32 le32_to_cpuvp(const void *p)
{
return le32_to_cpup(p);
}
int crypto_poly1305_init(struct shash_desc *desc)
{
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
@ -65,19 +61,19 @@ EXPORT_SYMBOL_GPL(crypto_poly1305_setkey);
static void poly1305_setrkey(struct poly1305_desc_ctx *dctx, const u8 *key)
{
/* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
dctx->r[0] = (le32_to_cpuvp(key + 0) >> 0) & 0x3ffffff;
dctx->r[1] = (le32_to_cpuvp(key + 3) >> 2) & 0x3ffff03;
dctx->r[2] = (le32_to_cpuvp(key + 6) >> 4) & 0x3ffc0ff;
dctx->r[3] = (le32_to_cpuvp(key + 9) >> 6) & 0x3f03fff;
dctx->r[4] = (le32_to_cpuvp(key + 12) >> 8) & 0x00fffff;
dctx->r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff;
dctx->r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03;
dctx->r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff;
dctx->r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff;
dctx->r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff;
}
static void poly1305_setskey(struct poly1305_desc_ctx *dctx, const u8 *key)
{
dctx->s[0] = le32_to_cpuvp(key + 0);
dctx->s[1] = le32_to_cpuvp(key + 4);
dctx->s[2] = le32_to_cpuvp(key + 8);
dctx->s[3] = le32_to_cpuvp(key + 12);
dctx->s[0] = get_unaligned_le32(key + 0);
dctx->s[1] = get_unaligned_le32(key + 4);
dctx->s[2] = get_unaligned_le32(key + 8);
dctx->s[3] = get_unaligned_le32(key + 12);
}
unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
@ -137,11 +133,11 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx,
while (likely(srclen >= POLY1305_BLOCK_SIZE)) {
/* h += m[i] */
h0 += (le32_to_cpuvp(src + 0) >> 0) & 0x3ffffff;
h1 += (le32_to_cpuvp(src + 3) >> 2) & 0x3ffffff;
h2 += (le32_to_cpuvp(src + 6) >> 4) & 0x3ffffff;
h3 += (le32_to_cpuvp(src + 9) >> 6) & 0x3ffffff;
h4 += (le32_to_cpuvp(src + 12) >> 8) | hibit;
h0 += (get_unaligned_le32(src + 0) >> 0) & 0x3ffffff;
h1 += (get_unaligned_le32(src + 3) >> 2) & 0x3ffffff;
h2 += (get_unaligned_le32(src + 6) >> 4) & 0x3ffffff;
h3 += (get_unaligned_le32(src + 9) >> 6) & 0x3ffffff;
h4 += (get_unaligned_le32(src + 12) >> 8) | hibit;
/* h *= r */
d0 = mlt(h0, r0) + mlt(h1, s4) + mlt(h2, s3) +

356
crypto/scompress.c Normal file
View file

@ -0,0 +1,356 @@
/*
* Synchronous Compression operations
*
* Copyright 2015 LG Electronics Inc.
* Copyright (c) 2016, Intel Corporation
* Author: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
*
* 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 <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/crypto.h>
#include <linux/vmalloc.h>
#include <crypto/algapi.h>
#include <linux/cryptouser.h>
#include <net/netlink.h>
#include <linux/scatterlist.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/acompress.h>
#include <crypto/internal/scompress.h>
#include "internal.h"
static const struct crypto_type crypto_scomp_type;
static void * __percpu *scomp_src_scratches;
static void * __percpu *scomp_dst_scratches;
static int scomp_scratch_users;
static DEFINE_MUTEX(scomp_lock);
#ifdef CONFIG_NET
static int crypto_scomp_report(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_report_comp rscomp;
strncpy(rscomp.type, "scomp", sizeof(rscomp.type));
if (nla_put(skb, CRYPTOCFGA_REPORT_COMPRESS,
sizeof(struct crypto_report_comp), &rscomp))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
#else
static int crypto_scomp_report(struct sk_buff *skb, struct crypto_alg *alg)
{
return -ENOSYS;
}
#endif
static void crypto_scomp_show(struct seq_file *m, struct crypto_alg *alg)
__attribute__ ((unused));
static void crypto_scomp_show(struct seq_file *m, struct crypto_alg *alg)
{
seq_puts(m, "type : scomp\n");
}
static int crypto_scomp_init_tfm(struct crypto_tfm *tfm)
{
return 0;
}
static void crypto_scomp_free_scratches(void * __percpu *scratches)
{
int i;
if (!scratches)
return;
for_each_possible_cpu(i)
vfree(*per_cpu_ptr(scratches, i));
free_percpu(scratches);
}
static void * __percpu *crypto_scomp_alloc_scratches(void)
{
void * __percpu *scratches;
int i;
scratches = alloc_percpu(void *);
if (!scratches)
return NULL;
for_each_possible_cpu(i) {
void *scratch;
scratch = vmalloc_node(SCOMP_SCRATCH_SIZE, cpu_to_node(i));
if (!scratch)
goto error;
*per_cpu_ptr(scratches, i) = scratch;
}
return scratches;
error:
crypto_scomp_free_scratches(scratches);
return NULL;
}
static void crypto_scomp_free_all_scratches(void)
{
if (!--scomp_scratch_users) {
crypto_scomp_free_scratches(scomp_src_scratches);
crypto_scomp_free_scratches(scomp_dst_scratches);
scomp_src_scratches = NULL;
scomp_dst_scratches = NULL;
}
}
static int crypto_scomp_alloc_all_scratches(void)
{
if (!scomp_scratch_users++) {
scomp_src_scratches = crypto_scomp_alloc_scratches();
if (!scomp_src_scratches)
return -ENOMEM;
scomp_dst_scratches = crypto_scomp_alloc_scratches();
if (!scomp_dst_scratches)
return -ENOMEM;
}
return 0;
}
static void crypto_scomp_sg_free(struct scatterlist *sgl)
{
int i, n;
struct page *page;
if (!sgl)
return;
n = sg_nents(sgl);
for_each_sg(sgl, sgl, n, i) {
page = sg_page(sgl);
if (page)
__free_page(page);
}
kfree(sgl);
}
static struct scatterlist *crypto_scomp_sg_alloc(size_t size, gfp_t gfp)
{
struct scatterlist *sgl;
struct page *page;
int i, n;
n = ((size - 1) >> PAGE_SHIFT) + 1;
sgl = kmalloc_array(n, sizeof(struct scatterlist), gfp);
if (!sgl)
return NULL;
sg_init_table(sgl, n);
for (i = 0; i < n; i++) {
page = alloc_page(gfp);
if (!page)
goto err;
sg_set_page(sgl + i, page, PAGE_SIZE, 0);
}
return sgl;
err:
sg_mark_end(sgl + i);
crypto_scomp_sg_free(sgl);
return NULL;
}
static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir)
{
struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
void **tfm_ctx = acomp_tfm_ctx(tfm);
struct crypto_scomp *scomp = *tfm_ctx;
void **ctx = acomp_request_ctx(req);
const int cpu = get_cpu();
u8 *scratch_src = *per_cpu_ptr(scomp_src_scratches, cpu);
u8 *scratch_dst = *per_cpu_ptr(scomp_dst_scratches, cpu);
int ret;
if (!req->src || !req->slen || req->slen > SCOMP_SCRATCH_SIZE) {
ret = -EINVAL;
goto out;
}
if (req->dst && !req->dlen) {
ret = -EINVAL;
goto out;
}
if (!req->dlen || req->dlen > SCOMP_SCRATCH_SIZE)
req->dlen = SCOMP_SCRATCH_SIZE;
scatterwalk_map_and_copy(scratch_src, req->src, 0, req->slen, 0);
if (dir)
ret = crypto_scomp_compress(scomp, scratch_src, req->slen,
scratch_dst, &req->dlen, *ctx);
else
ret = crypto_scomp_decompress(scomp, scratch_src, req->slen,
scratch_dst, &req->dlen, *ctx);
if (!ret) {
if (!req->dst) {
req->dst = crypto_scomp_sg_alloc(req->dlen,
req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
GFP_KERNEL : GFP_ATOMIC);
if (!req->dst)
goto out;
}
scatterwalk_map_and_copy(scratch_dst, req->dst, 0, req->dlen,
1);
}
out:
put_cpu();
return ret;
}
static int scomp_acomp_compress(struct acomp_req *req)
{
return scomp_acomp_comp_decomp(req, 1);
}
static int scomp_acomp_decompress(struct acomp_req *req)
{
return scomp_acomp_comp_decomp(req, 0);
}
static void crypto_exit_scomp_ops_async(struct crypto_tfm *tfm)
{
struct crypto_scomp **ctx = crypto_tfm_ctx(tfm);
crypto_free_scomp(*ctx);
}
int crypto_init_scomp_ops_async(struct crypto_tfm *tfm)
{
struct crypto_alg *calg = tfm->__crt_alg;
struct crypto_acomp *crt = __crypto_acomp_tfm(tfm);
struct crypto_scomp **ctx = crypto_tfm_ctx(tfm);
struct crypto_scomp *scomp;
if (!crypto_mod_get(calg))
return -EAGAIN;
scomp = crypto_create_tfm(calg, &crypto_scomp_type);
if (IS_ERR(scomp)) {
crypto_mod_put(calg);
return PTR_ERR(scomp);
}
*ctx = scomp;
tfm->exit = crypto_exit_scomp_ops_async;
crt->compress = scomp_acomp_compress;
crt->decompress = scomp_acomp_decompress;
crt->dst_free = crypto_scomp_sg_free;
crt->reqsize = sizeof(void *);
return 0;
}
struct acomp_req *crypto_acomp_scomp_alloc_ctx(struct acomp_req *req)
{
struct crypto_acomp *acomp = crypto_acomp_reqtfm(req);
struct crypto_tfm *tfm = crypto_acomp_tfm(acomp);
struct crypto_scomp **tfm_ctx = crypto_tfm_ctx(tfm);
struct crypto_scomp *scomp = *tfm_ctx;
void *ctx;
ctx = crypto_scomp_alloc_ctx(scomp);
if (IS_ERR(ctx)) {
kfree(req);
return NULL;
}
*req->__ctx = ctx;
return req;
}
void crypto_acomp_scomp_free_ctx(struct acomp_req *req)
{
struct crypto_acomp *acomp = crypto_acomp_reqtfm(req);
struct crypto_tfm *tfm = crypto_acomp_tfm(acomp);
struct crypto_scomp **tfm_ctx = crypto_tfm_ctx(tfm);
struct crypto_scomp *scomp = *tfm_ctx;
void *ctx = *req->__ctx;
if (ctx)
crypto_scomp_free_ctx(scomp, ctx);
}
static const struct crypto_type crypto_scomp_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_scomp_init_tfm,
#ifdef CONFIG_PROC_FS
.show = crypto_scomp_show,
#endif
.report = crypto_scomp_report,
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_MASK,
.type = CRYPTO_ALG_TYPE_SCOMPRESS,
.tfmsize = offsetof(struct crypto_scomp, base),
};
int crypto_register_scomp(struct scomp_alg *alg)
{
struct crypto_alg *base = &alg->base;
int ret = -ENOMEM;
mutex_lock(&scomp_lock);
if (crypto_scomp_alloc_all_scratches())
goto error;
base->cra_type = &crypto_scomp_type;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_SCOMPRESS;
ret = crypto_register_alg(base);
if (ret)
goto error;
mutex_unlock(&scomp_lock);
return ret;
error:
crypto_scomp_free_all_scratches();
mutex_unlock(&scomp_lock);
return ret;
}
EXPORT_SYMBOL_GPL(crypto_register_scomp);
int crypto_unregister_scomp(struct scomp_alg *alg)
{
int ret;
mutex_lock(&scomp_lock);
ret = crypto_unregister_alg(&alg->base);
crypto_scomp_free_all_scratches();
mutex_unlock(&scomp_lock);
return ret;
}
EXPORT_SYMBOL_GPL(crypto_unregister_scomp);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Synchronous compression type");

226
crypto/simd.c Normal file
View file

@ -0,0 +1,226 @@
/*
* Shared crypto simd helpers
*
* Copyright (c) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
* Copyright (c) 2016 Herbert Xu <herbert@gondor.apana.org.au>
*
* Based on aesni-intel_glue.c by:
* Copyright (C) 2008, Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#include <crypto/cryptd.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/preempt.h>
#include <asm/simd.h>
struct simd_skcipher_alg {
const char *ialg_name;
struct skcipher_alg alg;
};
struct simd_skcipher_ctx {
struct cryptd_skcipher *cryptd_tfm;
};
static int simd_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int key_len)
{
struct simd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *child = &ctx->cryptd_tfm->base;
int err;
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(child, key, key_len);
crypto_skcipher_set_flags(tfm, crypto_skcipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
static int simd_skcipher_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct simd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_request *subreq;
struct crypto_skcipher *child;
subreq = skcipher_request_ctx(req);
*subreq = *req;
if (!may_use_simd() ||
(in_atomic() && cryptd_skcipher_queued(ctx->cryptd_tfm)))
child = &ctx->cryptd_tfm->base;
else
child = cryptd_skcipher_child(ctx->cryptd_tfm);
skcipher_request_set_tfm(subreq, child);
return crypto_skcipher_encrypt(subreq);
}
static int simd_skcipher_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct simd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct skcipher_request *subreq;
struct crypto_skcipher *child;
subreq = skcipher_request_ctx(req);
*subreq = *req;
if (!may_use_simd() ||
(in_atomic() && cryptd_skcipher_queued(ctx->cryptd_tfm)))
child = &ctx->cryptd_tfm->base;
else
child = cryptd_skcipher_child(ctx->cryptd_tfm);
skcipher_request_set_tfm(subreq, child);
return crypto_skcipher_decrypt(subreq);
}
static void simd_skcipher_exit(struct crypto_skcipher *tfm)
{
struct simd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
cryptd_free_skcipher(ctx->cryptd_tfm);
}
static int simd_skcipher_init(struct crypto_skcipher *tfm)
{
struct simd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct cryptd_skcipher *cryptd_tfm;
struct simd_skcipher_alg *salg;
struct skcipher_alg *alg;
unsigned reqsize;
alg = crypto_skcipher_alg(tfm);
salg = container_of(alg, struct simd_skcipher_alg, alg);
cryptd_tfm = cryptd_alloc_skcipher(salg->ialg_name,
CRYPTO_ALG_INTERNAL,
CRYPTO_ALG_INTERNAL);
if (IS_ERR(cryptd_tfm))
return PTR_ERR(cryptd_tfm);
ctx->cryptd_tfm = cryptd_tfm;
reqsize = sizeof(struct skcipher_request);
reqsize += crypto_skcipher_reqsize(&cryptd_tfm->base);
crypto_skcipher_set_reqsize(tfm, reqsize);
return 0;
}
struct simd_skcipher_alg *simd_skcipher_create_compat(const char *algname,
const char *drvname,
const char *basename)
{
struct simd_skcipher_alg *salg;
struct crypto_skcipher *tfm;
struct skcipher_alg *ialg;
struct skcipher_alg *alg;
int err;
tfm = crypto_alloc_skcipher(basename, CRYPTO_ALG_INTERNAL,
CRYPTO_ALG_INTERNAL | CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm))
return ERR_CAST(tfm);
ialg = crypto_skcipher_alg(tfm);
salg = kzalloc(sizeof(*salg), GFP_KERNEL);
if (!salg) {
salg = ERR_PTR(-ENOMEM);
goto out_put_tfm;
}
salg->ialg_name = basename;
alg = &salg->alg;
err = -ENAMETOOLONG;
if (snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", algname) >=
CRYPTO_MAX_ALG_NAME)
goto out_free_salg;
if (snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
drvname) >= CRYPTO_MAX_ALG_NAME)
goto out_free_salg;
alg->base.cra_flags = CRYPTO_ALG_ASYNC;
alg->base.cra_priority = ialg->base.cra_priority;
alg->base.cra_blocksize = ialg->base.cra_blocksize;
alg->base.cra_alignmask = ialg->base.cra_alignmask;
alg->base.cra_module = ialg->base.cra_module;
alg->base.cra_ctxsize = sizeof(struct simd_skcipher_ctx);
alg->ivsize = ialg->ivsize;
alg->chunksize = ialg->chunksize;
alg->min_keysize = ialg->min_keysize;
alg->max_keysize = ialg->max_keysize;
alg->init = simd_skcipher_init;
alg->exit = simd_skcipher_exit;
alg->setkey = simd_skcipher_setkey;
alg->encrypt = simd_skcipher_encrypt;
alg->decrypt = simd_skcipher_decrypt;
err = crypto_register_skcipher(alg);
if (err)
goto out_free_salg;
out_put_tfm:
crypto_free_skcipher(tfm);
return salg;
out_free_salg:
kfree(salg);
salg = ERR_PTR(err);
goto out_put_tfm;
}
EXPORT_SYMBOL_GPL(simd_skcipher_create_compat);
struct simd_skcipher_alg *simd_skcipher_create(const char *algname,
const char *basename)
{
char drvname[CRYPTO_MAX_ALG_NAME];
if (snprintf(drvname, CRYPTO_MAX_ALG_NAME, "simd-%s", basename) >=
CRYPTO_MAX_ALG_NAME)
return ERR_PTR(-ENAMETOOLONG);
return simd_skcipher_create_compat(algname, drvname, basename);
}
EXPORT_SYMBOL_GPL(simd_skcipher_create);
void simd_skcipher_free(struct simd_skcipher_alg *salg)
{
crypto_unregister_skcipher(&salg->alg);
kfree(salg);
}
EXPORT_SYMBOL_GPL(simd_skcipher_free);
MODULE_LICENSE("GPL");

540
crypto/skcipher.c
View file

@ -14,9 +14,12 @@
*
*/
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
#include <crypto/scatterwalk.h>
#include <linux/bug.h>
#include <linux/cryptouser.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/rtnetlink.h>
#include <linux/seq_file.h>
@ -24,6 +27,543 @@
#include "internal.h"
enum {
SKCIPHER_WALK_PHYS = 1 << 0,
SKCIPHER_WALK_SLOW = 1 << 1,
SKCIPHER_WALK_COPY = 1 << 2,
SKCIPHER_WALK_DIFF = 1 << 3,
SKCIPHER_WALK_SLEEP = 1 << 4,
};
struct skcipher_walk_buffer {
struct list_head entry;
struct scatter_walk dst;
unsigned int len;
u8 *data;
u8 buffer[];
};
static int skcipher_walk_next(struct skcipher_walk *walk);
static inline void skcipher_unmap(struct scatter_walk *walk, void *vaddr)
{
if (PageHighMem(scatterwalk_page(walk)))
kunmap_atomic(vaddr);
}
static inline void *skcipher_map(struct scatter_walk *walk)
{
struct page *page = scatterwalk_page(walk);
return (PageHighMem(page) ? kmap_atomic(page) : page_address(page)) +
offset_in_page(walk->offset);
}
static inline void skcipher_map_src(struct skcipher_walk *walk)
{
walk->src.virt.addr = skcipher_map(&walk->in);
}
static inline void skcipher_map_dst(struct skcipher_walk *walk)
{
walk->dst.virt.addr = skcipher_map(&walk->out);
}
static inline void skcipher_unmap_src(struct skcipher_walk *walk)
{
skcipher_unmap(&walk->in, walk->src.virt.addr);
}
static inline void skcipher_unmap_dst(struct skcipher_walk *walk)
{
skcipher_unmap(&walk->out, walk->dst.virt.addr);
}
static inline gfp_t skcipher_walk_gfp(struct skcipher_walk *walk)
{
return walk->flags & SKCIPHER_WALK_SLEEP ? GFP_KERNEL : GFP_ATOMIC;
}
/* Get a spot of the specified length that does not straddle a page.
* The caller needs to ensure that there is enough space for this operation.
*/
static inline u8 *skcipher_get_spot(u8 *start, unsigned int len)
{
u8 *end_page = (u8 *)(((unsigned long)(start + len - 1)) & PAGE_MASK);
return max(start, end_page);
}
static int skcipher_done_slow(struct skcipher_walk *walk, unsigned int bsize)
{
u8 *addr;
addr = (u8 *)ALIGN((unsigned long)walk->buffer, walk->alignmask + 1);
addr = skcipher_get_spot(addr, bsize);
scatterwalk_copychunks(addr, &walk->out, bsize,
(walk->flags & SKCIPHER_WALK_PHYS) ? 2 : 1);
return 0;
}
int skcipher_walk_done(struct skcipher_walk *walk, int err)
{
unsigned int n = walk->nbytes - err;
unsigned int nbytes;
nbytes = walk->total - n;
if (unlikely(err < 0)) {
nbytes = 0;
n = 0;
} else if (likely(!(walk->flags & (SKCIPHER_WALK_PHYS |
SKCIPHER_WALK_SLOW |
SKCIPHER_WALK_COPY |
SKCIPHER_WALK_DIFF)))) {
unmap_src:
skcipher_unmap_src(walk);
} else if (walk->flags & SKCIPHER_WALK_DIFF) {
skcipher_unmap_dst(walk);
goto unmap_src;
} else if (walk->flags & SKCIPHER_WALK_COPY) {
skcipher_map_dst(walk);
memcpy(walk->dst.virt.addr, walk->page, n);
skcipher_unmap_dst(walk);
} else if (unlikely(walk->flags & SKCIPHER_WALK_SLOW)) {
if (WARN_ON(err)) {
err = -EINVAL;
nbytes = 0;
} else
n = skcipher_done_slow(walk, n);
}
if (err > 0)
err = 0;
walk->total = nbytes;
walk->nbytes = nbytes;
scatterwalk_advance(&walk->in, n);
scatterwalk_advance(&walk->out, n);
scatterwalk_done(&walk->in, 0, nbytes);
scatterwalk_done(&walk->out, 1, nbytes);
if (nbytes) {
crypto_yield(walk->flags & SKCIPHER_WALK_SLEEP ?
CRYPTO_TFM_REQ_MAY_SLEEP : 0);
return skcipher_walk_next(walk);
}
/* Short-circuit for the common/fast path. */
if (!((unsigned long)walk->buffer | (unsigned long)walk->page))
goto out;
if (walk->flags & SKCIPHER_WALK_PHYS)
goto out;
if (walk->iv != walk->oiv)
memcpy(walk->oiv, walk->iv, walk->ivsize);
if (walk->buffer != walk->page)
kfree(walk->buffer);
if (walk->page)
free_page((unsigned long)walk->page);
out:
return err;
}
EXPORT_SYMBOL_GPL(skcipher_walk_done);
void skcipher_walk_complete(struct skcipher_walk *walk, int err)
{
struct skcipher_walk_buffer *p, *tmp;
list_for_each_entry_safe(p, tmp, &walk->buffers, entry) {
u8 *data;
if (err)
goto done;
data = p->data;
if (!data) {
data = PTR_ALIGN(&p->buffer[0], walk->alignmask + 1);
data = skcipher_get_spot(data, walk->chunksize);
}
scatterwalk_copychunks(data, &p->dst, p->len, 1);
if (offset_in_page(p->data) + p->len + walk->chunksize >
PAGE_SIZE)
free_page((unsigned long)p->data);
done:
list_del(&p->entry);
kfree(p);
}
if (!err && walk->iv != walk->oiv)
memcpy(walk->oiv, walk->iv, walk->ivsize);
if (walk->buffer != walk->page)
kfree(walk->buffer);
if (walk->page)
free_page((unsigned long)walk->page);
}
EXPORT_SYMBOL_GPL(skcipher_walk_complete);
static void skcipher_queue_write(struct skcipher_walk *walk,
struct skcipher_walk_buffer *p)
{
p->dst = walk->out;
list_add_tail(&p->entry, &walk->buffers);
}
static int skcipher_next_slow(struct skcipher_walk *walk, unsigned int bsize)
{
bool phys = walk->flags & SKCIPHER_WALK_PHYS;
unsigned alignmask = walk->alignmask;
struct skcipher_walk_buffer *p;
unsigned a;
unsigned n;
u8 *buffer;
void *v;
if (!phys) {
buffer = walk->buffer ?: walk->page;
if (buffer)
goto ok;
}
/* Start with the minimum alignment of kmalloc. */
a = crypto_tfm_ctx_alignment() - 1;
n = bsize;
if (phys) {
/* Calculate the minimum alignment of p->buffer. */
a &= (sizeof(*p) ^ (sizeof(*p) - 1)) >> 1;
n += sizeof(*p);
}
/* Minimum size to align p->buffer by alignmask. */
n += alignmask & ~a;
/* Minimum size to ensure p->buffer does not straddle a page. */
n += (bsize - 1) & ~(alignmask | a);
v = kzalloc(n, skcipher_walk_gfp(walk));
if (!v)
return skcipher_walk_done(walk, -ENOMEM);
if (phys) {
p = v;
p->len = bsize;
skcipher_queue_write(walk, p);
buffer = p->buffer;
} else {
walk->buffer = v;
buffer = v;
}
ok:
walk->dst.virt.addr = PTR_ALIGN(buffer, alignmask + 1);
walk->dst.virt.addr = skcipher_get_spot(walk->dst.virt.addr, bsize);
walk->src.virt.addr = walk->dst.virt.addr;
scatterwalk_copychunks(walk->src.virt.addr, &walk->in, bsize, 0);
walk->nbytes = bsize;
walk->flags |= SKCIPHER_WALK_SLOW;
return 0;
}
static int skcipher_next_copy(struct skcipher_walk *walk)
{
struct skcipher_walk_buffer *p;
u8 *tmp = walk->page;
skcipher_map_src(walk);
memcpy(tmp, walk->src.virt.addr, walk->nbytes);
skcipher_unmap_src(walk);
walk->src.virt.addr = tmp;
walk->dst.virt.addr = tmp;
if (!(walk->flags & SKCIPHER_WALK_PHYS))
return 0;
p = kmalloc(sizeof(*p), skcipher_walk_gfp(walk));
if (!p)
return -ENOMEM;
p->data = walk->page;
p->len = walk->nbytes;
skcipher_queue_write(walk, p);
if (offset_in_page(walk->page) + walk->nbytes + walk->chunksize >
PAGE_SIZE)
walk->page = NULL;
else
walk->page += walk->nbytes;
return 0;
}
static int skcipher_next_fast(struct skcipher_walk *walk)
{
unsigned long diff;
walk->src.phys.page = scatterwalk_page(&walk->in);
walk->src.phys.offset = offset_in_page(walk->in.offset);
walk->dst.phys.page = scatterwalk_page(&walk->out);
walk->dst.phys.offset = offset_in_page(walk->out.offset);
if (walk->flags & SKCIPHER_WALK_PHYS)
return 0;
diff = walk->src.phys.offset - walk->dst.phys.offset;
diff |= walk->src.virt.page - walk->dst.virt.page;
skcipher_map_src(walk);
walk->dst.virt.addr = walk->src.virt.addr;
if (diff) {
walk->flags |= SKCIPHER_WALK_DIFF;
skcipher_map_dst(walk);
}
return 0;
}
static int skcipher_walk_next(struct skcipher_walk *walk)
{
unsigned int bsize;
unsigned int n;
int err;
walk->flags &= ~(SKCIPHER_WALK_SLOW | SKCIPHER_WALK_COPY |
SKCIPHER_WALK_DIFF);
n = walk->total;
bsize = min(walk->chunksize, max(n, walk->blocksize));
n = scatterwalk_clamp(&walk->in, n);
n = scatterwalk_clamp(&walk->out, n);
if (unlikely(n < bsize)) {
if (unlikely(walk->total < walk->blocksize))
return skcipher_walk_done(walk, -EINVAL);
slow_path:
err = skcipher_next_slow(walk, bsize);
goto set_phys_lowmem;
}
if (unlikely((walk->in.offset | walk->out.offset) & walk->alignmask)) {
if (!walk->page) {
gfp_t gfp = skcipher_walk_gfp(walk);
walk->page = (void *)__get_free_page(gfp);
if (!walk->page)
goto slow_path;
}
walk->nbytes = min_t(unsigned, n,
PAGE_SIZE - offset_in_page(walk->page));
walk->flags |= SKCIPHER_WALK_COPY;
err = skcipher_next_copy(walk);
goto set_phys_lowmem;
}
walk->nbytes = n;
return skcipher_next_fast(walk);
set_phys_lowmem:
if (!err && (walk->flags & SKCIPHER_WALK_PHYS)) {
walk->src.phys.page = virt_to_page(walk->src.virt.addr);
walk->dst.phys.page = virt_to_page(walk->dst.virt.addr);
walk->src.phys.offset &= PAGE_SIZE - 1;
walk->dst.phys.offset &= PAGE_SIZE - 1;
}
return err;
}
EXPORT_SYMBOL_GPL(skcipher_walk_next);
static int skcipher_copy_iv(struct skcipher_walk *walk)
{
unsigned a = crypto_tfm_ctx_alignment() - 1;
unsigned alignmask = walk->alignmask;
unsigned ivsize = walk->ivsize;
unsigned bs = walk->chunksize;
unsigned aligned_bs;
unsigned size;
u8 *iv;
aligned_bs = ALIGN(bs, alignmask);
/* Minimum size to align buffer by alignmask. */
size = alignmask & ~a;
if (walk->flags & SKCIPHER_WALK_PHYS)
size += ivsize;
else {
size += aligned_bs + ivsize;
/* Minimum size to ensure buffer does not straddle a page. */
size += (bs - 1) & ~(alignmask | a);
}
walk->buffer = kmalloc(size, skcipher_walk_gfp(walk));
if (!walk->buffer)
return -ENOMEM;
iv = PTR_ALIGN(walk->buffer, alignmask + 1);
iv = skcipher_get_spot(iv, bs) + aligned_bs;
walk->iv = memcpy(iv, walk->iv, walk->ivsize);
return 0;
}
static int skcipher_walk_first(struct skcipher_walk *walk)
{
walk->nbytes = 0;
if (WARN_ON_ONCE(in_irq()))
return -EDEADLK;
if (unlikely(!walk->total))
return 0;
walk->buffer = NULL;
if (unlikely(((unsigned long)walk->iv & walk->alignmask))) {
int err = skcipher_copy_iv(walk);
if (err)
return err;
}
walk->page = NULL;
walk->nbytes = walk->total;
return skcipher_walk_next(walk);
}
static int skcipher_walk_skcipher(struct skcipher_walk *walk,
struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
scatterwalk_start(&walk->in, req->src);
scatterwalk_start(&walk->out, req->dst);
walk->total = req->cryptlen;
walk->iv = req->iv;
walk->oiv = req->iv;
walk->flags &= ~SKCIPHER_WALK_SLEEP;
walk->flags |= req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
SKCIPHER_WALK_SLEEP : 0;
walk->blocksize = crypto_skcipher_blocksize(tfm);
walk->chunksize = crypto_skcipher_chunksize(tfm);
walk->ivsize = crypto_skcipher_ivsize(tfm);
walk->alignmask = crypto_skcipher_alignmask(tfm);
return skcipher_walk_first(walk);
}
int skcipher_walk_virt(struct skcipher_walk *walk,
struct skcipher_request *req, bool atomic)
{
int err;
walk->flags &= ~SKCIPHER_WALK_PHYS;
err = skcipher_walk_skcipher(walk, req);
walk->flags &= atomic ? ~SKCIPHER_WALK_SLEEP : ~0;
return err;
}
EXPORT_SYMBOL_GPL(skcipher_walk_virt);
void skcipher_walk_atomise(struct skcipher_walk *walk)
{
walk->flags &= ~SKCIPHER_WALK_SLEEP;
}
EXPORT_SYMBOL_GPL(skcipher_walk_atomise);
int skcipher_walk_async(struct skcipher_walk *walk,
struct skcipher_request *req)
{
walk->flags |= SKCIPHER_WALK_PHYS;
INIT_LIST_HEAD(&walk->buffers);
return skcipher_walk_skcipher(walk, req);
}
EXPORT_SYMBOL_GPL(skcipher_walk_async);
static int skcipher_walk_aead_common(struct skcipher_walk *walk,
struct aead_request *req, bool atomic)
{
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
int err;
walk->flags &= ~SKCIPHER_WALK_PHYS;
scatterwalk_start(&walk->in, req->src);
scatterwalk_start(&walk->out, req->dst);
scatterwalk_copychunks(NULL, &walk->in, req->assoclen, 2);
scatterwalk_copychunks(NULL, &walk->out, req->assoclen, 2);
walk->iv = req->iv;
walk->oiv = req->iv;
if (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP)
walk->flags |= SKCIPHER_WALK_SLEEP;
else
walk->flags &= ~SKCIPHER_WALK_SLEEP;
walk->blocksize = crypto_aead_blocksize(tfm);
walk->chunksize = crypto_aead_chunksize(tfm);
walk->ivsize = crypto_aead_ivsize(tfm);
walk->alignmask = crypto_aead_alignmask(tfm);
err = skcipher_walk_first(walk);
if (atomic)
walk->flags &= ~SKCIPHER_WALK_SLEEP;
return err;
}
int skcipher_walk_aead(struct skcipher_walk *walk, struct aead_request *req,
bool atomic)
{
walk->total = req->cryptlen;
return skcipher_walk_aead_common(walk, req, atomic);
}
EXPORT_SYMBOL_GPL(skcipher_walk_aead);
int skcipher_walk_aead_encrypt(struct skcipher_walk *walk,
struct aead_request *req, bool atomic)
{
walk->total = req->cryptlen;
return skcipher_walk_aead_common(walk, req, atomic);
}
EXPORT_SYMBOL_GPL(skcipher_walk_aead_encrypt);
int skcipher_walk_aead_decrypt(struct skcipher_walk *walk,
struct aead_request *req, bool atomic)
{
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
walk->total = req->cryptlen - crypto_aead_authsize(tfm);
return skcipher_walk_aead_common(walk, req, atomic);
}
EXPORT_SYMBOL_GPL(skcipher_walk_aead_decrypt);
static unsigned int crypto_skcipher_extsize(struct crypto_alg *alg)
{
if (alg->cra_type == &crypto_blkcipher_type)

318
crypto/testmgr.c
View file

@ -33,6 +33,7 @@
#include <crypto/drbg.h>
#include <crypto/akcipher.h>
#include <crypto/kpp.h>
#include <crypto/acompress.h>
#include "internal.h"
@ -62,7 +63,7 @@ int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
*/
#define IDX1 32
#define IDX2 32400
#define IDX3 1
#define IDX3 1511
#define IDX4 8193
#define IDX5 22222
#define IDX6 17101
@ -1442,6 +1443,126 @@ static int test_comp(struct crypto_comp *tfm, struct comp_testvec *ctemplate,
return ret;
}
static int test_acomp(struct crypto_acomp *tfm, struct comp_testvec *ctemplate,
struct comp_testvec *dtemplate, int ctcount, int dtcount)
{
const char *algo = crypto_tfm_alg_driver_name(crypto_acomp_tfm(tfm));
unsigned int i;
char *output;
int ret;
struct scatterlist src, dst;
struct acomp_req *req;
struct tcrypt_result result;
output = kmalloc(COMP_BUF_SIZE, GFP_KERNEL);
if (!output)
return -ENOMEM;
for (i = 0; i < ctcount; i++) {
unsigned int dlen = COMP_BUF_SIZE;
int ilen = ctemplate[i].inlen;
memset(output, 0, dlen);
init_completion(&result.completion);
sg_init_one(&src, ctemplate[i].input, ilen);
sg_init_one(&dst, output, dlen);
req = acomp_request_alloc(tfm);
if (!req) {
pr_err("alg: acomp: request alloc failed for %s\n",
algo);
ret = -ENOMEM;
goto out;
}
acomp_request_set_params(req, &src, &dst, ilen, dlen);
acomp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
tcrypt_complete, &result);
ret = wait_async_op(&result, crypto_acomp_compress(req));
if (ret) {
pr_err("alg: acomp: compression failed on test %d for %s: ret=%d\n",
i + 1, algo, -ret);
acomp_request_free(req);
goto out;
}
if (req->dlen != ctemplate[i].outlen) {
pr_err("alg: acomp: Compression test %d failed for %s: output len = %d\n",
i + 1, algo, req->dlen);
ret = -EINVAL;
acomp_request_free(req);
goto out;
}
if (memcmp(output, ctemplate[i].output, req->dlen)) {
pr_err("alg: acomp: Compression test %d failed for %s\n",
i + 1, algo);
hexdump(output, req->dlen);
ret = -EINVAL;
acomp_request_free(req);
goto out;
}
acomp_request_free(req);
}
for (i = 0; i < dtcount; i++) {
unsigned int dlen = COMP_BUF_SIZE;
int ilen = dtemplate[i].inlen;
memset(output, 0, dlen);
init_completion(&result.completion);
sg_init_one(&src, dtemplate[i].input, ilen);
sg_init_one(&dst, output, dlen);
req = acomp_request_alloc(tfm);
if (!req) {
pr_err("alg: acomp: request alloc failed for %s\n",
algo);
ret = -ENOMEM;
goto out;
}
acomp_request_set_params(req, &src, &dst, ilen, dlen);
acomp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
tcrypt_complete, &result);
ret = wait_async_op(&result, crypto_acomp_decompress(req));
if (ret) {
pr_err("alg: acomp: decompression failed on test %d for %s: ret=%d\n",
i + 1, algo, -ret);
acomp_request_free(req);
goto out;
}
if (req->dlen != dtemplate[i].outlen) {
pr_err("alg: acomp: Decompression test %d failed for %s: output len = %d\n",
i + 1, algo, req->dlen);
ret = -EINVAL;
acomp_request_free(req);
goto out;
}
if (memcmp(output, dtemplate[i].output, req->dlen)) {
pr_err("alg: acomp: Decompression test %d failed for %s\n",
i + 1, algo);
hexdump(output, req->dlen);
ret = -EINVAL;
acomp_request_free(req);
goto out;
}
acomp_request_free(req);
}
ret = 0;
out:
kfree(output);
return ret;
}
static int test_cprng(struct crypto_rng *tfm, struct cprng_testvec *template,
unsigned int tcount)
{
@ -1509,7 +1630,7 @@ static int alg_test_aead(const struct alg_test_desc *desc, const char *driver,
struct crypto_aead *tfm;
int err = 0;
tfm = crypto_alloc_aead(driver, type | CRYPTO_ALG_INTERNAL, mask);
tfm = crypto_alloc_aead(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: aead: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(tfm));
@ -1538,7 +1659,7 @@ static int alg_test_cipher(const struct alg_test_desc *desc,
struct crypto_cipher *tfm;
int err = 0;
tfm = crypto_alloc_cipher(driver, type | CRYPTO_ALG_INTERNAL, mask);
tfm = crypto_alloc_cipher(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: cipher: Failed to load transform for "
"%s: %ld\n", driver, PTR_ERR(tfm));
@ -1567,7 +1688,7 @@ static int alg_test_skcipher(const struct alg_test_desc *desc,
struct crypto_skcipher *tfm;
int err = 0;
tfm = crypto_alloc_skcipher(driver, type | CRYPTO_ALG_INTERNAL, mask);
tfm = crypto_alloc_skcipher(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: skcipher: Failed to load transform for "
"%s: %ld\n", driver, PTR_ERR(tfm));
@ -1593,22 +1714,38 @@ static int alg_test_skcipher(const struct alg_test_desc *desc,
static int alg_test_comp(const struct alg_test_desc *desc, const char *driver,
u32 type, u32 mask)
{
struct crypto_comp *tfm;
struct crypto_comp *comp;
struct crypto_acomp *acomp;
int err;
u32 algo_type = type & CRYPTO_ALG_TYPE_ACOMPRESS_MASK;
tfm = crypto_alloc_comp(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: comp: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
if (algo_type == CRYPTO_ALG_TYPE_ACOMPRESS) {
acomp = crypto_alloc_acomp(driver, type, mask);
if (IS_ERR(acomp)) {
pr_err("alg: acomp: Failed to load transform for %s: %ld\n",
driver, PTR_ERR(acomp));
return PTR_ERR(acomp);
}
err = test_acomp(acomp, desc->suite.comp.comp.vecs,
desc->suite.comp.decomp.vecs,
desc->suite.comp.comp.count,
desc->suite.comp.decomp.count);
crypto_free_acomp(acomp);
} else {
comp = crypto_alloc_comp(driver, type, mask);
if (IS_ERR(comp)) {
pr_err("alg: comp: Failed to load transform for %s: %ld\n",
driver, PTR_ERR(comp));
return PTR_ERR(comp);
}
err = test_comp(comp, desc->suite.comp.comp.vecs,
desc->suite.comp.decomp.vecs,
desc->suite.comp.comp.count,
desc->suite.comp.decomp.count);
crypto_free_comp(comp);
}
err = test_comp(tfm, desc->suite.comp.comp.vecs,
desc->suite.comp.decomp.vecs,
desc->suite.comp.comp.count,
desc->suite.comp.decomp.count);
crypto_free_comp(tfm);
return err;
}
@ -1618,7 +1755,7 @@ static int alg_test_hash(const struct alg_test_desc *desc, const char *driver,
struct crypto_ahash *tfm;
int err;
tfm = crypto_alloc_ahash(driver, type | CRYPTO_ALG_INTERNAL, mask);
tfm = crypto_alloc_ahash(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: hash: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(tfm));
@ -1646,7 +1783,7 @@ static int alg_test_crc32c(const struct alg_test_desc *desc,
if (err)
goto out;
tfm = crypto_alloc_shash(driver, type | CRYPTO_ALG_INTERNAL, mask);
tfm = crypto_alloc_shash(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: crc32c: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(tfm));
@ -1688,7 +1825,7 @@ static int alg_test_cprng(const struct alg_test_desc *desc, const char *driver,
struct crypto_rng *rng;
int err;
rng = crypto_alloc_rng(driver, type | CRYPTO_ALG_INTERNAL, mask);
rng = crypto_alloc_rng(driver, type, mask);
if (IS_ERR(rng)) {
printk(KERN_ERR "alg: cprng: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(rng));
@ -1715,7 +1852,7 @@ static int drbg_cavs_test(struct drbg_testvec *test, int pr,
if (!buf)
return -ENOMEM;
drng = crypto_alloc_rng(driver, type | CRYPTO_ALG_INTERNAL, mask);
drng = crypto_alloc_rng(driver, type, mask);
if (IS_ERR(drng)) {
printk(KERN_ERR "alg: drbg: could not allocate DRNG handle for "
"%s\n", driver);
@ -1909,7 +2046,7 @@ static int alg_test_kpp(const struct alg_test_desc *desc, const char *driver,
struct crypto_kpp *tfm;
int err = 0;
tfm = crypto_alloc_kpp(driver, type | CRYPTO_ALG_INTERNAL, mask);
tfm = crypto_alloc_kpp(driver, type, mask);
if (IS_ERR(tfm)) {
pr_err("alg: kpp: Failed to load tfm for %s: %ld\n",
driver, PTR_ERR(tfm));
@ -2068,7 +2205,7 @@ static int alg_test_akcipher(const struct alg_test_desc *desc,
struct crypto_akcipher *tfm;
int err = 0;
tfm = crypto_alloc_akcipher(driver, type | CRYPTO_ALG_INTERNAL, mask);
tfm = crypto_alloc_akcipher(driver, type, mask);
if (IS_ERR(tfm)) {
pr_err("alg: akcipher: Failed to load tfm for %s: %ld\n",
driver, PTR_ERR(tfm));
@ -2091,88 +2228,6 @@ static int alg_test_null(const struct alg_test_desc *desc,
/* Please keep this list sorted by algorithm name. */
static const struct alg_test_desc alg_test_descs[] = {
{
.alg = "__cbc-cast5-avx",
.test = alg_test_null,
}, {
.alg = "__cbc-cast6-avx",
.test = alg_test_null,
}, {
.alg = "__cbc-serpent-avx",
.test = alg_test_null,
}, {
.alg = "__cbc-serpent-avx2",
.test = alg_test_null,
}, {
.alg = "__cbc-serpent-sse2",
.test = alg_test_null,
}, {
.alg = "__cbc-twofish-avx",
.test = alg_test_null,
}, {
.alg = "__driver-cbc-aes-aesni",
.test = alg_test_null,
.fips_allowed = 1,
}, {
.alg = "__driver-cbc-camellia-aesni",
.test = alg_test_null,
}, {
.alg = "__driver-cbc-camellia-aesni-avx2",
.test = alg_test_null,
}, {
.alg = "__driver-cbc-cast5-avx",
.test = alg_test_null,
}, {
.alg = "__driver-cbc-cast6-avx",
.test = alg_test_null,
}, {
.alg = "__driver-cbc-serpent-avx",
.test = alg_test_null,
}, {
.alg = "__driver-cbc-serpent-avx2",
.test = alg_test_null,
}, {
.alg = "__driver-cbc-serpent-sse2",
.test = alg_test_null,
}, {
.alg = "__driver-cbc-twofish-avx",
.test = alg_test_null,
}, {
.alg = "__driver-ecb-aes-aesni",
.test = alg_test_null,
.fips_allowed = 1,
}, {
.alg = "__driver-ecb-camellia-aesni",
.test = alg_test_null,
}, {
.alg = "__driver-ecb-camellia-aesni-avx2",
.test = alg_test_null,
}, {
.alg = "__driver-ecb-cast5-avx",
.test = alg_test_null,
}, {
.alg = "__driver-ecb-cast6-avx",
.test = alg_test_null,
}, {
.alg = "__driver-ecb-serpent-avx",
.test = alg_test_null,
}, {
.alg = "__driver-ecb-serpent-avx2",
.test = alg_test_null,
}, {
.alg = "__driver-ecb-serpent-sse2",
.test = alg_test_null,
}, {
.alg = "__driver-ecb-twofish-avx",
.test = alg_test_null,
}, {
.alg = "__driver-gcm-aes-aesni",
.test = alg_test_null,
.fips_allowed = 1,
}, {
.alg = "__ghash-pclmulqdqni",
.test = alg_test_null,
.fips_allowed = 1,
}, {
.alg = "ansi_cprng",
.test = alg_test_cprng,
.suite = {
@ -2658,55 +2713,6 @@ static const struct alg_test_desc alg_test_descs[] = {
.count = CRCT10DIF_TEST_VECTORS
}
}
}, {
.alg = "cryptd(__driver-cbc-aes-aesni)",
.test = alg_test_null,
.fips_allowed = 1,
}, {
.alg = "cryptd(__driver-cbc-camellia-aesni)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-cbc-camellia-aesni-avx2)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-cbc-serpent-avx2)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-ecb-aes-aesni)",
.test = alg_test_null,
.fips_allowed = 1,
}, {
.alg = "cryptd(__driver-ecb-camellia-aesni)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-ecb-camellia-aesni-avx2)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-ecb-cast5-avx)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-ecb-cast6-avx)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-ecb-serpent-avx)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-ecb-serpent-avx2)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-ecb-serpent-sse2)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-ecb-twofish-avx)",
.test = alg_test_null,
}, {
.alg = "cryptd(__driver-gcm-aes-aesni)",
.test = alg_test_null,
.fips_allowed = 1,
}, {
.alg = "cryptd(__ghash-pclmulqdqni)",
.test = alg_test_null,
.fips_allowed = 1,
}, {
.alg = "ctr(aes)",
.test = alg_test_skcipher,
@ -3033,10 +3039,6 @@ static const struct alg_test_desc alg_test_descs[] = {
.alg = "drbg_pr_sha512",
.fips_allowed = 1,
.test = alg_test_null,
}, {
.alg = "ecb(__aes-aesni)",
.test = alg_test_null,
.fips_allowed = 1,
}, {
.alg = "ecb(aes)",
.test = alg_test_skcipher,

66
crypto/testmgr.h
View file

@ -1334,36 +1334,50 @@ static struct hash_testvec rmd320_tv_template[] = {
}
};
#define CRCT10DIF_TEST_VECTORS 3
#define CRCT10DIF_TEST_VECTORS ARRAY_SIZE(crct10dif_tv_template)
static struct hash_testvec crct10dif_tv_template[] = {
{
.plaintext = "abc",
.psize = 3,
#ifdef __LITTLE_ENDIAN
.digest = "\x3b\x44",
#else
.digest = "\x44\x3b",
#endif
.plaintext = "abc",
.psize = 3,
.digest = (u8 *)(u16 []){ 0x443b },
}, {
.plaintext = "1234567890123456789012345678901234567890"
"123456789012345678901234567890123456789",
.psize = 79,
#ifdef __LITTLE_ENDIAN
.digest = "\x70\x4b",
#else
.digest = "\x4b\x70",
#endif
.plaintext = "1234567890123456789012345678901234567890"
"123456789012345678901234567890123456789",
.psize = 79,
.digest = (u8 *)(u16 []){ 0x4b70 },
.np = 2,
.tap = { 63, 16 },
}, {
.plaintext =
"abcddddddddddddddddddddddddddddddddddddddddddddddddddddd",
.psize = 56,
#ifdef __LITTLE_ENDIAN
.digest = "\xe3\x9c",
#else
.digest = "\x9c\xe3",
#endif
.np = 2,
.tap = { 28, 28 }
.plaintext = "abcdddddddddddddddddddddddddddddddddddddddd"
"ddddddddddddd",
.psize = 56,
.digest = (u8 *)(u16 []){ 0x9ce3 },
.np = 8,
.tap = { 1, 2, 28, 7, 6, 5, 4, 3 },
}, {
.plaintext = "1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"123456789012345678901234567890123456789",
.psize = 319,
.digest = (u8 *)(u16 []){ 0x44c6 },
}, {
.plaintext = "1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"1234567890123456789012345678901234567890"
"123456789012345678901234567890123456789",
.psize = 319,
.digest = (u8 *)(u16 []){ 0x44c6 },
.np = 4,
.tap = { 1, 255, 57, 6 },
}
};

611
crypto/xts.c
View file

@ -13,7 +13,8 @@
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <crypto/algapi.h>
#include <crypto/internal/skcipher.h>
#include <crypto/scatterwalk.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
@ -25,140 +26,320 @@
#include <crypto/b128ops.h>
#include <crypto/gf128mul.h>
#define XTS_BUFFER_SIZE 128u
struct priv {
struct crypto_cipher *child;
struct crypto_skcipher *child;
struct crypto_cipher *tweak;
};
static int setkey(struct crypto_tfm *parent, const u8 *key,
struct xts_instance_ctx {
struct crypto_skcipher_spawn spawn;
char name[CRYPTO_MAX_ALG_NAME];
};
struct rctx {
be128 buf[XTS_BUFFER_SIZE / sizeof(be128)];
be128 t;
be128 *ext;
struct scatterlist srcbuf[2];
struct scatterlist dstbuf[2];
struct scatterlist *src;
struct scatterlist *dst;
unsigned int left;
struct skcipher_request subreq;
};
static int setkey(struct crypto_skcipher *parent, const u8 *key,
unsigned int keylen)
{
struct priv *ctx = crypto_tfm_ctx(parent);
struct crypto_cipher *child = ctx->tweak;
struct priv *ctx = crypto_skcipher_ctx(parent);
struct crypto_skcipher *child;
struct crypto_cipher *tweak;
int err;
err = xts_check_key(parent, key, keylen);
err = xts_verify_key(parent, key, keylen);
if (err)
return err;
keylen /= 2;
/* we need two cipher instances: one to compute the initial 'tweak'
* by encrypting the IV (usually the 'plain' iv) and the other
* one to encrypt and decrypt the data */
/* tweak cipher, uses Key2 i.e. the second half of *key */
crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(child, crypto_tfm_get_flags(parent) &
tweak = ctx->tweak;
crypto_cipher_clear_flags(tweak, CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(tweak, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_cipher_setkey(child, key + keylen/2, keylen/2);
err = crypto_cipher_setkey(tweak, key + keylen, keylen);
crypto_skcipher_set_flags(parent, crypto_cipher_get_flags(tweak) &
CRYPTO_TFM_RES_MASK);
if (err)
return err;
crypto_tfm_set_flags(parent, crypto_cipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
child = ctx->child;
/* data cipher, uses Key1 i.e. the first half of *key */
crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(child, crypto_tfm_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_cipher_setkey(child, key, keylen/2);
if (err)
return err;
crypto_tfm_set_flags(parent, crypto_cipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return 0;
}
struct sinfo {
be128 *t;
struct crypto_tfm *tfm;
void (*fn)(struct crypto_tfm *, u8 *, const u8 *);
};
static inline void xts_round(struct sinfo *s, void *dst, const void *src)
{
be128_xor(dst, s->t, src); /* PP <- T xor P */
s->fn(s->tfm, dst, dst); /* CC <- E(Key1,PP) */
be128_xor(dst, dst, s->t); /* C <- T xor CC */
}
static int crypt(struct blkcipher_desc *d,
struct blkcipher_walk *w, struct priv *ctx,
void (*tw)(struct crypto_tfm *, u8 *, const u8 *),
void (*fn)(struct crypto_tfm *, u8 *, const u8 *))
{
int err;
unsigned int avail;
const int bs = XTS_BLOCK_SIZE;
struct sinfo s = {
.tfm = crypto_cipher_tfm(ctx->child),
.fn = fn
};
u8 *wsrc;
u8 *wdst;
err = blkcipher_walk_virt(d, w);
if (!w->nbytes)
return err;
s.t = (be128 *)w->iv;
avail = w->nbytes;
wsrc = w->src.virt.addr;
wdst = w->dst.virt.addr;
/* calculate first value of T */
tw(crypto_cipher_tfm(ctx->tweak), w->iv, w->iv);
goto first;
for (;;) {
do {
gf128mul_x_ble(s.t, s.t);
first:
xts_round(&s, wdst, wsrc);
wsrc += bs;
wdst += bs;
} while ((avail -= bs) >= bs);
err = blkcipher_walk_done(d, w, avail);
if (!w->nbytes)
break;
avail = w->nbytes;
wsrc = w->src.virt.addr;
wdst = w->dst.virt.addr;
}
child = ctx->child;
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(child, key, keylen);
crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
static int encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int post_crypt(struct skcipher_request *req)
{
struct priv *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk w;
struct rctx *rctx = skcipher_request_ctx(req);
be128 *buf = rctx->ext ?: rctx->buf;
struct skcipher_request *subreq;
const int bs = XTS_BLOCK_SIZE;
struct skcipher_walk w;
struct scatterlist *sg;
unsigned offset;
int err;
blkcipher_walk_init(&w, dst, src, nbytes);
return crypt(desc, &w, ctx, crypto_cipher_alg(ctx->tweak)->cia_encrypt,
crypto_cipher_alg(ctx->child)->cia_encrypt);
subreq = &rctx->subreq;
err = skcipher_walk_virt(&w, subreq, false);
while (w.nbytes) {
unsigned int avail = w.nbytes;
be128 *wdst;
wdst = w.dst.virt.addr;
do {
be128_xor(wdst, buf++, wdst);
wdst++;
} while ((avail -= bs) >= bs);
err = skcipher_walk_done(&w, avail);
}
rctx->left -= subreq->cryptlen;
if (err || !rctx->left)
goto out;
rctx->dst = rctx->dstbuf;
scatterwalk_done(&w.out, 0, 1);
sg = w.out.sg;
offset = w.out.offset;
if (rctx->dst != sg) {
rctx->dst[0] = *sg;
sg_unmark_end(rctx->dst);
scatterwalk_crypto_chain(rctx->dst, sg_next(sg), 0, 2);
}
rctx->dst[0].length -= offset - sg->offset;
rctx->dst[0].offset = offset;
out:
return err;
}
static int decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
static int pre_crypt(struct skcipher_request *req)
{
struct priv *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk w;
struct rctx *rctx = skcipher_request_ctx(req);
be128 *buf = rctx->ext ?: rctx->buf;
struct skcipher_request *subreq;
const int bs = XTS_BLOCK_SIZE;
struct skcipher_walk w;
struct scatterlist *sg;
unsigned cryptlen;
unsigned offset;
bool more;
int err;
blkcipher_walk_init(&w, dst, src, nbytes);
return crypt(desc, &w, ctx, crypto_cipher_alg(ctx->tweak)->cia_encrypt,
crypto_cipher_alg(ctx->child)->cia_decrypt);
subreq = &rctx->subreq;
cryptlen = subreq->cryptlen;
more = rctx->left > cryptlen;
if (!more)
cryptlen = rctx->left;
skcipher_request_set_crypt(subreq, rctx->src, rctx->dst,
cryptlen, NULL);
err = skcipher_walk_virt(&w, subreq, false);
while (w.nbytes) {
unsigned int avail = w.nbytes;
be128 *wsrc;
be128 *wdst;
wsrc = w.src.virt.addr;
wdst = w.dst.virt.addr;
do {
*buf++ = rctx->t;
be128_xor(wdst++, &rctx->t, wsrc++);
gf128mul_x_ble(&rctx->t, &rctx->t);
} while ((avail -= bs) >= bs);
err = skcipher_walk_done(&w, avail);
}
skcipher_request_set_crypt(subreq, rctx->dst, rctx->dst,
cryptlen, NULL);
if (err || !more)
goto out;
rctx->src = rctx->srcbuf;
scatterwalk_done(&w.in, 0, 1);
sg = w.in.sg;
offset = w.in.offset;
if (rctx->src != sg) {
rctx->src[0] = *sg;
sg_unmark_end(rctx->src);
scatterwalk_crypto_chain(rctx->src, sg_next(sg), 0, 2);
}
rctx->src[0].length -= offset - sg->offset;
rctx->src[0].offset = offset;
out:
return err;
}
static int init_crypt(struct skcipher_request *req, crypto_completion_t done)
{
struct priv *ctx = crypto_skcipher_ctx(crypto_skcipher_reqtfm(req));
struct rctx *rctx = skcipher_request_ctx(req);
struct skcipher_request *subreq;
gfp_t gfp;
subreq = &rctx->subreq;
skcipher_request_set_tfm(subreq, ctx->child);
skcipher_request_set_callback(subreq, req->base.flags, done, req);
gfp = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
rctx->ext = NULL;
subreq->cryptlen = XTS_BUFFER_SIZE;
if (req->cryptlen > XTS_BUFFER_SIZE) {
subreq->cryptlen = min(req->cryptlen, (unsigned)PAGE_SIZE);
rctx->ext = kmalloc(subreq->cryptlen, gfp);
}
rctx->src = req->src;
rctx->dst = req->dst;
rctx->left = req->cryptlen;
/* calculate first value of T */
crypto_cipher_encrypt_one(ctx->tweak, (u8 *)&rctx->t, req->iv);
return 0;
}
static void exit_crypt(struct skcipher_request *req)
{
struct rctx *rctx = skcipher_request_ctx(req);
rctx->left = 0;
if (rctx->ext)
kzfree(rctx->ext);
}
static int do_encrypt(struct skcipher_request *req, int err)
{
struct rctx *rctx = skcipher_request_ctx(req);
struct skcipher_request *subreq;
subreq = &rctx->subreq;
while (!err && rctx->left) {
err = pre_crypt(req) ?:
crypto_skcipher_encrypt(subreq) ?:
post_crypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY &&
req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
return err;
}
exit_crypt(req);
return err;
}
static void encrypt_done(struct crypto_async_request *areq, int err)
{
struct skcipher_request *req = areq->data;
struct skcipher_request *subreq;
struct rctx *rctx;
rctx = skcipher_request_ctx(req);
subreq = &rctx->subreq;
subreq->base.flags &= CRYPTO_TFM_REQ_MAY_BACKLOG;
err = do_encrypt(req, err ?: post_crypt(req));
if (rctx->left)
return;
skcipher_request_complete(req, err);
}
static int encrypt(struct skcipher_request *req)
{
return do_encrypt(req, init_crypt(req, encrypt_done));
}
static int do_decrypt(struct skcipher_request *req, int err)
{
struct rctx *rctx = skcipher_request_ctx(req);
struct skcipher_request *subreq;
subreq = &rctx->subreq;
while (!err && rctx->left) {
err = pre_crypt(req) ?:
crypto_skcipher_decrypt(subreq) ?:
post_crypt(req);
if (err == -EINPROGRESS ||
(err == -EBUSY &&
req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
return err;
}
exit_crypt(req);
return err;
}
static void decrypt_done(struct crypto_async_request *areq, int err)
{
struct skcipher_request *req = areq->data;
struct skcipher_request *subreq;
struct rctx *rctx;
rctx = skcipher_request_ctx(req);
subreq = &rctx->subreq;
subreq->base.flags &= CRYPTO_TFM_REQ_MAY_BACKLOG;
err = do_decrypt(req, err ?: post_crypt(req));
if (rctx->left)
return;
skcipher_request_complete(req, err);
}
static int decrypt(struct skcipher_request *req)
{
return do_decrypt(req, init_crypt(req, decrypt_done));
}
int xts_crypt(struct blkcipher_desc *desc, struct scatterlist *sdst,
@ -233,112 +414,168 @@ int xts_crypt(struct blkcipher_desc *desc, struct scatterlist *sdst,
}
EXPORT_SYMBOL_GPL(xts_crypt);
static int init_tfm(struct crypto_tfm *tfm)
static int init_tfm(struct crypto_skcipher *tfm)
{
struct crypto_cipher *cipher;
struct crypto_instance *inst = (void *)tfm->__crt_alg;
struct crypto_spawn *spawn = crypto_instance_ctx(inst);
struct priv *ctx = crypto_tfm_ctx(tfm);
u32 *flags = &tfm->crt_flags;
struct skcipher_instance *inst = skcipher_alg_instance(tfm);
struct xts_instance_ctx *ictx = skcipher_instance_ctx(inst);
struct priv *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *child;
struct crypto_cipher *tweak;
cipher = crypto_spawn_cipher(spawn);
if (IS_ERR(cipher))
return PTR_ERR(cipher);
child = crypto_spawn_skcipher(&ictx->spawn);
if (IS_ERR(child))
return PTR_ERR(child);
if (crypto_cipher_blocksize(cipher) != XTS_BLOCK_SIZE) {
*flags |= CRYPTO_TFM_RES_BAD_BLOCK_LEN;
crypto_free_cipher(cipher);
return -EINVAL;
ctx->child = child;
tweak = crypto_alloc_cipher(ictx->name, 0, 0);
if (IS_ERR(tweak)) {
crypto_free_skcipher(ctx->child);
return PTR_ERR(tweak);
}
ctx->child = cipher;
ctx->tweak = tweak;
cipher = crypto_spawn_cipher(spawn);
if (IS_ERR(cipher)) {
crypto_free_cipher(ctx->child);
return PTR_ERR(cipher);
}
/* this check isn't really needed, leave it here just in case */
if (crypto_cipher_blocksize(cipher) != XTS_BLOCK_SIZE) {
crypto_free_cipher(cipher);
crypto_free_cipher(ctx->child);
*flags |= CRYPTO_TFM_RES_BAD_BLOCK_LEN;
return -EINVAL;
}
ctx->tweak = cipher;
crypto_skcipher_set_reqsize(tfm, crypto_skcipher_reqsize(child) +
sizeof(struct rctx));
return 0;
}
static void exit_tfm(struct crypto_tfm *tfm)
static void exit_tfm(struct crypto_skcipher *tfm)
{
struct priv *ctx = crypto_tfm_ctx(tfm);
crypto_free_cipher(ctx->child);
struct priv *ctx = crypto_skcipher_ctx(tfm);
crypto_free_skcipher(ctx->child);
crypto_free_cipher(ctx->tweak);
}
static struct crypto_instance *alloc(struct rtattr **tb)
static void free(struct skcipher_instance *inst)
{
struct crypto_instance *inst;
struct crypto_alg *alg;
int err;
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
if (err)
return ERR_PTR(err);
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
if (IS_ERR(alg))
return ERR_CAST(alg);
inst = crypto_alloc_instance("xts", alg);
if (IS_ERR(inst))
goto out_put_alg;
inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
inst->alg.cra_priority = alg->cra_priority;
inst->alg.cra_blocksize = alg->cra_blocksize;
if (alg->cra_alignmask < 7)
inst->alg.cra_alignmask = 7;
else
inst->alg.cra_alignmask = alg->cra_alignmask;
inst->alg.cra_type = &crypto_blkcipher_type;
inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;
inst->alg.cra_blkcipher.min_keysize =
2 * alg->cra_cipher.cia_min_keysize;
inst->alg.cra_blkcipher.max_keysize =
2 * alg->cra_cipher.cia_max_keysize;
inst->alg.cra_ctxsize = sizeof(struct priv);
inst->alg.cra_init = init_tfm;
inst->alg.cra_exit = exit_tfm;
inst->alg.cra_blkcipher.setkey = setkey;
inst->alg.cra_blkcipher.encrypt = encrypt;
inst->alg.cra_blkcipher.decrypt = decrypt;
out_put_alg:
crypto_mod_put(alg);
return inst;
crypto_drop_skcipher(skcipher_instance_ctx(inst));
kfree(inst);
}
static void free(struct crypto_instance *inst)
static int create(struct crypto_template *tmpl, struct rtattr **tb)
{
crypto_drop_spawn(crypto_instance_ctx(inst));
struct skcipher_instance *inst;
struct crypto_attr_type *algt;
struct xts_instance_ctx *ctx;
struct skcipher_alg *alg;
const char *cipher_name;
int err;
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return PTR_ERR(algt);
if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
return -EINVAL;
cipher_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(cipher_name))
return PTR_ERR(cipher_name);
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
if (!inst)
return -ENOMEM;
ctx = skcipher_instance_ctx(inst);
crypto_set_skcipher_spawn(&ctx->spawn, skcipher_crypto_instance(inst));
err = crypto_grab_skcipher(&ctx->spawn, cipher_name, 0,
crypto_requires_sync(algt->type,
algt->mask));
if (err == -ENOENT) {
err = -ENAMETOOLONG;
if (snprintf(ctx->name, CRYPTO_MAX_ALG_NAME, "ecb(%s)",
cipher_name) >= CRYPTO_MAX_ALG_NAME)
goto err_free_inst;
err = crypto_grab_skcipher(&ctx->spawn, ctx->name, 0,
crypto_requires_sync(algt->type,
algt->mask));
}
if (err)
goto err_free_inst;
alg = crypto_skcipher_spawn_alg(&ctx->spawn);
err = -EINVAL;
if (alg->base.cra_blocksize != XTS_BLOCK_SIZE)
goto err_drop_spawn;
if (crypto_skcipher_alg_ivsize(alg))
goto err_drop_spawn;
err = crypto_inst_setname(skcipher_crypto_instance(inst), "xts",
&alg->base);
if (err)
goto err_drop_spawn;
err = -EINVAL;
cipher_name = alg->base.cra_name;
/* Alas we screwed up the naming so we have to mangle the
* cipher name.
*/
if (!strncmp(cipher_name, "ecb(", 4)) {
unsigned len;
len = strlcpy(ctx->name, cipher_name + 4, sizeof(ctx->name));
if (len < 2 || len >= sizeof(ctx->name))
goto err_drop_spawn;
if (ctx->name[len - 1] != ')')
goto err_drop_spawn;
ctx->name[len - 1] = 0;
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
"xts(%s)", ctx->name) >= CRYPTO_MAX_ALG_NAME)
return -ENAMETOOLONG;
} else
goto err_drop_spawn;
inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;
inst->alg.base.cra_priority = alg->base.cra_priority;
inst->alg.base.cra_blocksize = XTS_BLOCK_SIZE;
inst->alg.base.cra_alignmask = alg->base.cra_alignmask |
(__alignof__(u64) - 1);
inst->alg.ivsize = XTS_BLOCK_SIZE;
inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg) * 2;
inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(alg) * 2;
inst->alg.base.cra_ctxsize = sizeof(struct priv);
inst->alg.init = init_tfm;
inst->alg.exit = exit_tfm;
inst->alg.setkey = setkey;
inst->alg.encrypt = encrypt;
inst->alg.decrypt = decrypt;
inst->free = free;
err = skcipher_register_instance(tmpl, inst);
if (err)
goto err_drop_spawn;
out:
return err;
err_drop_spawn:
crypto_drop_skcipher(&ctx->spawn);
err_free_inst:
kfree(inst);
goto out;
}
static struct crypto_template crypto_tmpl = {
.name = "xts",
.alloc = alloc,
.free = free,
.create = create,
.module = THIS_MODULE,
};

2
drivers/char/hw_random/Kconfig
View file

@ -168,7 +168,7 @@ config HW_RANDOM_IXP4XX
config HW_RANDOM_OMAP
tristate "OMAP Random Number Generator support"
depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || ARCH_MVEBU
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number

26
drivers/char/hw_random/atmel-rng.c
View file

@ -48,6 +48,16 @@ static int atmel_trng_read(struct hwrng *rng, void *buf, size_t max,
return 0;
}
static void atmel_trng_enable(struct atmel_trng *trng)
{
writel(TRNG_KEY | 1, trng->base + TRNG_CR);
}
static void atmel_trng_disable(struct atmel_trng *trng)
{
writel(TRNG_KEY, trng->base + TRNG_CR);
}
static int atmel_trng_probe(struct platform_device *pdev)
{
struct atmel_trng *trng;
@ -71,7 +81,7 @@ static int atmel_trng_probe(struct platform_device *pdev)
if (ret)
return ret;
writel(TRNG_KEY | 1, trng->base + TRNG_CR);
atmel_trng_enable(trng);
trng->rng.name = pdev->name;
trng->rng.read = atmel_trng_read;
@ -84,7 +94,7 @@ static int atmel_trng_probe(struct platform_device *pdev)
return 0;
err_register:
clk_disable(trng->clk);
clk_disable_unprepare(trng->clk);
return ret;
}
@ -94,7 +104,7 @@ static int atmel_trng_remove(struct platform_device *pdev)
hwrng_unregister(&trng->rng);
writel(TRNG_KEY, trng->base + TRNG_CR);
atmel_trng_disable(trng);
clk_disable_unprepare(trng->clk);
return 0;
@ -105,6 +115,7 @@ static int atmel_trng_suspend(struct device *dev)
{
struct atmel_trng *trng = dev_get_drvdata(dev);
atmel_trng_disable(trng);
clk_disable_unprepare(trng->clk);
return 0;
@ -113,8 +124,15 @@ static int atmel_trng_suspend(struct device *dev)
static int atmel_trng_resume(struct device *dev)
{
struct atmel_trng *trng = dev_get_drvdata(dev);
int ret;
return clk_prepare_enable(trng->clk);
ret = clk_prepare_enable(trng->clk);
if (ret)
return ret;
atmel_trng_enable(trng);
return 0;
}
static const struct dev_pm_ops atmel_trng_pm_ops = {

3
drivers/char/hw_random/core.c
View file

@ -92,6 +92,7 @@ static void add_early_randomness(struct hwrng *rng)
mutex_unlock(&reading_mutex);
if (bytes_read > 0)
add_device_randomness(rng_buffer, bytes_read);
memset(rng_buffer, 0, size);
}
static inline void cleanup_rng(struct kref *kref)
@ -287,6 +288,7 @@ static ssize_t rng_dev_read(struct file *filp, char __user *buf,
}
}
out:
memset(rng_buffer, 0, rng_buffer_size());
return ret ? : err;
out_unlock_reading:
@ -425,6 +427,7 @@ static int hwrng_fillfn(void *unused)
/* Outside lock, sure, but y'know: randomness. */
add_hwgenerator_randomness((void *)rng_fillbuf, rc,
rc * current_quality * 8 >> 10);
memset(rng_fillbuf, 0, rng_buffer_size());
}
hwrng_fill = NULL;
return 0;

2
drivers/char/hw_random/meson-rng.c
View file

@ -110,6 +110,7 @@ static const struct of_device_id meson_rng_of_match[] = {
{ .compatible = "amlogic,meson-rng", },
{},
};
MODULE_DEVICE_TABLE(of, meson_rng_of_match);
static struct platform_driver meson_rng_driver = {
.probe = meson_rng_probe,
@ -121,7 +122,6 @@ static struct platform_driver meson_rng_driver = {
module_platform_driver(meson_rng_driver);
MODULE_ALIAS("platform:meson-rng");
MODULE_DESCRIPTION("Meson H/W Random Number Generator driver");
MODULE_AUTHOR("Lawrence Mok <lawrence.mok@amlogic.com>");
MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");

4
drivers/char/hw_random/msm-rng.c
View file

@ -90,10 +90,6 @@ static int msm_rng_read(struct hwrng *hwrng, void *data, size_t max, bool wait)
/* calculate max size bytes to transfer back to caller */
maxsize = min_t(size_t, MAX_HW_FIFO_SIZE, max);
/* no room for word data */
if (maxsize < WORD_SZ)
return 0;
ret = clk_prepare_enable(rng->clk);
if (ret)
return ret;

162
drivers/char/hw_random/omap-rng.c
View file

@ -28,6 +28,7 @@
#include <linux/of_device.h>
#include <linux/of_address.h>
#include <linux/interrupt.h>
#include <linux/clk.h>
#include <asm/io.h>
@ -63,10 +64,13 @@
#define OMAP2_RNG_OUTPUT_SIZE 0x4
#define OMAP4_RNG_OUTPUT_SIZE 0x8
#define EIP76_RNG_OUTPUT_SIZE 0x10
enum {
RNG_OUTPUT_L_REG = 0,
RNG_OUTPUT_H_REG,
RNG_OUTPUT_0_REG = 0,
RNG_OUTPUT_1_REG,
RNG_OUTPUT_2_REG,
RNG_OUTPUT_3_REG,
RNG_STATUS_REG,
RNG_INTMASK_REG,
RNG_INTACK_REG,
@ -82,7 +86,7 @@ enum {
};
static const u16 reg_map_omap2[] = {
[RNG_OUTPUT_L_REG] = 0x0,
[RNG_OUTPUT_0_REG] = 0x0,
[RNG_STATUS_REG] = 0x4,
[RNG_CONFIG_REG] = 0x28,
[RNG_REV_REG] = 0x3c,
@ -90,8 +94,8 @@ static const u16 reg_map_omap2[] = {
};
static const u16 reg_map_omap4[] = {
[RNG_OUTPUT_L_REG] = 0x0,
[RNG_OUTPUT_H_REG] = 0x4,
[RNG_OUTPUT_0_REG] = 0x0,
[RNG_OUTPUT_1_REG] = 0x4,
[RNG_STATUS_REG] = 0x8,
[RNG_INTMASK_REG] = 0xc,
[RNG_INTACK_REG] = 0x10,
@ -106,6 +110,23 @@ static const u16 reg_map_omap4[] = {
[RNG_SYSCONFIG_REG] = 0x1FE4,
};
static const u16 reg_map_eip76[] = {
[RNG_OUTPUT_0_REG] = 0x0,
[RNG_OUTPUT_1_REG] = 0x4,
[RNG_OUTPUT_2_REG] = 0x8,
[RNG_OUTPUT_3_REG] = 0xc,
[RNG_STATUS_REG] = 0x10,
[RNG_INTACK_REG] = 0x10,
[RNG_CONTROL_REG] = 0x14,
[RNG_CONFIG_REG] = 0x18,
[RNG_ALARMCNT_REG] = 0x1c,
[RNG_FROENABLE_REG] = 0x20,
[RNG_FRODETUNE_REG] = 0x24,
[RNG_ALARMMASK_REG] = 0x28,
[RNG_ALARMSTOP_REG] = 0x2c,
[RNG_REV_REG] = 0x7c,
};
struct omap_rng_dev;
/**
* struct omap_rng_pdata - RNG IP block-specific data
@ -127,6 +148,8 @@ struct omap_rng_dev {
void __iomem *base;
struct device *dev;
const struct omap_rng_pdata *pdata;
struct hwrng rng;
struct clk *clk;
};
static inline u32 omap_rng_read(struct omap_rng_dev *priv, u16 reg)
@ -140,41 +163,35 @@ static inline void omap_rng_write(struct omap_rng_dev *priv, u16 reg,
__raw_writel(val, priv->base + priv->pdata->regs[reg]);
}
static int omap_rng_data_present(struct hwrng *rng, int wait)
static int omap_rng_do_read(struct hwrng *rng, void *data, size_t max,
bool wait)
{
struct omap_rng_dev *priv;
int data, i;
int i, present;
priv = (struct omap_rng_dev *)rng->priv;
if (max < priv->pdata->data_size)
return 0;
for (i = 0; i < 20; i++) {
data = priv->pdata->data_present(priv);
if (data || !wait)
present = priv->pdata->data_present(priv);
if (present || !wait)
break;
/* RNG produces data fast enough (2+ MBit/sec, even
* during "rngtest" loads, that these delays don't
* seem to trigger. We *could* use the RNG IRQ, but
* that'd be higher overhead ... so why bother?
*/
udelay(10);
}
return data;
}
if (!present)
return 0;
static int omap_rng_data_read(struct hwrng *rng, u32 *data)
{
struct omap_rng_dev *priv;
u32 data_size, i;
priv = (struct omap_rng_dev *)rng->priv;
data_size = priv->pdata->data_size;
for (i = 0; i < data_size / sizeof(u32); i++)
data[i] = omap_rng_read(priv, RNG_OUTPUT_L_REG + i);
memcpy_fromio(data, priv->base + priv->pdata->regs[RNG_OUTPUT_0_REG],
priv->pdata->data_size);
if (priv->pdata->regs[RNG_INTACK_REG])
omap_rng_write(priv, RNG_INTACK_REG, RNG_REG_INTACK_RDY_MASK);
return data_size;
return priv->pdata->data_size;
}
static int omap_rng_init(struct hwrng *rng)
@ -193,13 +210,6 @@ static void omap_rng_cleanup(struct hwrng *rng)
priv->pdata->cleanup(priv);
}
static struct hwrng omap_rng_ops = {
.name = "omap",
.data_present = omap_rng_data_present,
.data_read = omap_rng_data_read,
.init = omap_rng_init,
.cleanup = omap_rng_cleanup,
};
static inline u32 omap2_rng_data_present(struct omap_rng_dev *priv)
{
@ -231,6 +241,38 @@ static inline u32 omap4_rng_data_present(struct omap_rng_dev *priv)
return omap_rng_read(priv, RNG_STATUS_REG) & RNG_REG_STATUS_RDY;
}
static int eip76_rng_init(struct omap_rng_dev *priv)
{
u32 val;
/* Return if RNG is already running. */
if (omap_rng_read(priv, RNG_CONTROL_REG) & RNG_CONTROL_ENABLE_TRNG_MASK)
return 0;
/* Number of 512 bit blocks of raw Noise Source output data that must
* be processed by either the Conditioning Function or the
* SP 800-90 DRBG ‘BC_DF’ functionality to yield a ‘full entropy’
* output value.
*/
val = 0x5 << RNG_CONFIG_MIN_REFIL_CYCLES_SHIFT;
/* Number of FRO samples that are XOR-ed together into one bit to be
* shifted into the main shift register
*/
val |= RNG_CONFIG_MAX_REFIL_CYCLES << RNG_CONFIG_MAX_REFIL_CYCLES_SHIFT;
omap_rng_write(priv, RNG_CONFIG_REG, val);
/* Enable all available FROs */
omap_rng_write(priv, RNG_FRODETUNE_REG, 0x0);
omap_rng_write(priv, RNG_FROENABLE_REG, RNG_REG_FROENABLE_MASK);
/* Enable TRNG */
val = RNG_CONTROL_ENABLE_TRNG_MASK;
omap_rng_write(priv, RNG_CONTROL_REG, val);
return 0;
}
static int omap4_rng_init(struct omap_rng_dev *priv)
{
u32 val;
@ -300,6 +342,14 @@ static struct omap_rng_pdata omap4_rng_pdata = {
.cleanup = omap4_rng_cleanup,
};
static struct omap_rng_pdata eip76_rng_pdata = {
.regs = (u16 *)reg_map_eip76,
.data_size = EIP76_RNG_OUTPUT_SIZE,
.data_present = omap4_rng_data_present,
.init = eip76_rng_init,
.cleanup = omap4_rng_cleanup,
};
static const struct of_device_id omap_rng_of_match[] = {
{
.compatible = "ti,omap2-rng",
@ -309,6 +359,10 @@ static const struct of_device_id omap_rng_of_match[] = {
.compatible = "ti,omap4-rng",
.data = &omap4_rng_pdata,
},
{
.compatible = "inside-secure,safexcel-eip76",
.data = &eip76_rng_pdata,
},
{},
};
MODULE_DEVICE_TABLE(of, omap_rng_of_match);
@ -327,7 +381,8 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv,
}
priv->pdata = match->data;
if (of_device_is_compatible(dev->of_node, "ti,omap4-rng")) {
if (of_device_is_compatible(dev->of_node, "ti,omap4-rng") ||
of_device_is_compatible(dev->of_node, "inside-secure,safexcel-eip76")) {
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(dev, "%s: error getting IRQ resource - %d\n",
@ -343,6 +398,16 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv,
return err;
}
omap_rng_write(priv, RNG_INTMASK_REG, RNG_SHUTDOWN_OFLO_MASK);
priv->clk = of_clk_get(pdev->dev.of_node, 0);
if (IS_ERR(priv->clk) && PTR_ERR(priv->clk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (!IS_ERR(priv->clk)) {
err = clk_prepare_enable(priv->clk);
if (err)
dev_err(&pdev->dev, "unable to enable the clk, "
"err = %d\n", err);
}
}
return 0;
}
@ -372,7 +437,11 @@ static int omap_rng_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
omap_rng_ops.priv = (unsigned long)priv;
priv->rng.read = omap_rng_do_read;
priv->rng.init = omap_rng_init;
priv->rng.cleanup = omap_rng_cleanup;
priv->rng.priv = (unsigned long)priv;
platform_set_drvdata(pdev, priv);
priv->dev = dev;
@ -383,6 +452,12 @@ static int omap_rng_probe(struct platform_device *pdev)
goto err_ioremap;
}
priv->rng.name = devm_kstrdup(dev, dev_name(dev), GFP_KERNEL);
if (!priv->rng.name) {
ret = -ENOMEM;
goto err_ioremap;
}
pm_runtime_enable(&pdev->dev);
ret = pm_runtime_get_sync(&pdev->dev);
if (ret < 0) {
@ -394,20 +469,24 @@ static int omap_rng_probe(struct platform_device *pdev)
ret = (dev->of_node) ? of_get_omap_rng_device_details(priv, pdev) :
get_omap_rng_device_details(priv);
if (ret)
goto err_ioremap;
goto err_register;
ret = hwrng_register(&omap_rng_ops);
ret = hwrng_register(&priv->rng);
if (ret)
goto err_register;
dev_info(&pdev->dev, "OMAP Random Number Generator ver. %02x\n",
dev_info(&pdev->dev, "Random Number Generator ver. %02x\n",
omap_rng_read(priv, RNG_REV_REG));
return 0;
err_register:
priv->base = NULL;
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
if (!IS_ERR(priv->clk))
clk_disable_unprepare(priv->clk);
err_ioremap:
dev_err(dev, "initialization failed.\n");
return ret;
@ -417,13 +496,16 @@ static int omap_rng_remove(struct platform_device *pdev)
{
struct omap_rng_dev *priv = platform_get_drvdata(pdev);
hwrng_unregister(&omap_rng_ops);
hwrng_unregister(&priv->rng);
priv->pdata->cleanup(priv);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
if (!IS_ERR(priv->clk))
clk_disable_unprepare(priv->clk);
return 0;
}

3
drivers/char/hw_random/pic32-rng.c
View file

@ -62,9 +62,6 @@ static int pic32_rng_read(struct hwrng *rng, void *buf, size_t max,
u32 t;
unsigned int timeout = RNG_TIMEOUT;
if (max < 8)
return 0;
do {
t = readl(priv->base + RNGRCNT) & RCNT_MASK;
if (t == 64) {

5
drivers/char/hw_random/pseries-rng.c
View file

@ -28,7 +28,6 @@
static int pseries_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)
{
u64 buffer[PLPAR_HCALL_BUFSIZE];
size_t size = max < 8 ? max : 8;
int rc;
rc = plpar_hcall(H_RANDOM, (unsigned long *)buffer);
@ -36,10 +35,10 @@ static int pseries_rng_read(struct hwrng *rng, void *data, size_t max, bool wait
pr_err_ratelimited("H_RANDOM call failed %d\n", rc);
return -EIO;
}
memcpy(data, buffer, size);
memcpy(data, buffer, 8);
/* The hypervisor interface returns 64 bits */
return size;
return 8;
}
/**

3
drivers/crypto/amcc/crypto4xx_core.c
View file

@ -135,8 +135,7 @@ int crypto4xx_alloc_sa(struct crypto4xx_ctx *ctx, u32 size)
ctx->sa_out = dma_alloc_coherent(ctx->dev->core_dev->device, size * 4,
&ctx->sa_out_dma_addr, GFP_ATOMIC);
if (ctx->sa_out == NULL) {
dma_free_coherent(ctx->dev->core_dev->device,
ctx->sa_len * 4,
dma_free_coherent(ctx->dev->core_dev->device, size * 4,
ctx->sa_in, ctx->sa_in_dma_addr);
return -ENOMEM;
}

4
drivers/crypto/atmel-aes-regs.h
View file

@ -28,6 +28,7 @@
#define AES_MR_OPMOD_CFB (0x3 << 12)
#define AES_MR_OPMOD_CTR (0x4 << 12)
#define AES_MR_OPMOD_GCM (0x5 << 12)
#define AES_MR_OPMOD_XTS (0x6 << 12)
#define AES_MR_LOD (0x1 << 15)
#define AES_MR_CFBS_MASK (0x7 << 16)
#define AES_MR_CFBS_128b (0x0 << 16)
@ -67,6 +68,9 @@
#define AES_CTRR 0x98
#define AES_GCMHR(x) (0x9c + ((x) * 0x04))
#define AES_TWR(x) (0xc0 + ((x) * 0x04))
#define AES_ALPHAR(x) (0xd0 + ((x) * 0x04))
#define AES_HW_VERSION 0xFC
#endif /* __ATMEL_AES_REGS_H__ */

189
drivers/crypto/atmel-aes.c
View file

@ -36,6 +36,7 @@
#include <crypto/scatterwalk.h>
#include <crypto/algapi.h>
#include <crypto/aes.h>
#include <crypto/xts.h>
#include <crypto/internal/aead.h>
#include <linux/platform_data/crypto-atmel.h>
#include <dt-bindings/dma/at91.h>
@ -68,6 +69,7 @@
#define AES_FLAGS_CFB8 (AES_MR_OPMOD_CFB | AES_MR_CFBS_8b)
#define AES_FLAGS_CTR AES_MR_OPMOD_CTR
#define AES_FLAGS_GCM AES_MR_OPMOD_GCM
#define AES_FLAGS_XTS AES_MR_OPMOD_XTS
#define AES_FLAGS_MODE_MASK (AES_FLAGS_OPMODE_MASK | \
AES_FLAGS_ENCRYPT | \
@ -89,6 +91,7 @@ struct atmel_aes_caps {
bool has_cfb64;
bool has_ctr32;
bool has_gcm;
bool has_xts;
u32 max_burst_size;
};
@ -135,6 +138,12 @@ struct atmel_aes_gcm_ctx {
atmel_aes_fn_t ghash_resume;
};
struct atmel_aes_xts_ctx {
struct atmel_aes_base_ctx base;
u32 key2[AES_KEYSIZE_256 / sizeof(u32)];
};
struct atmel_aes_reqctx {
unsigned long mode;
};
@ -282,6 +291,20 @@ static const char *atmel_aes_reg_name(u32 offset, char *tmp, size_t sz)
snprintf(tmp, sz, "GCMHR[%u]", (offset - AES_GCMHR(0)) >> 2);
break;
case AES_TWR(0):
case AES_TWR(1):
case AES_TWR(2):
case AES_TWR(3):
snprintf(tmp, sz, "TWR[%u]", (offset - AES_TWR(0)) >> 2);
break;
case AES_ALPHAR(0):
case AES_ALPHAR(1):
case AES_ALPHAR(2):
case AES_ALPHAR(3):
snprintf(tmp, sz, "ALPHAR[%u]", (offset - AES_ALPHAR(0)) >> 2);
break;
default:
snprintf(tmp, sz, "0x%02x", offset);
break;
@ -317,7 +340,7 @@ static inline void atmel_aes_write(struct atmel_aes_dev *dd,
char tmp[16];
dev_vdbg(dd->dev, "write 0x%08x into %s\n", value,
atmel_aes_reg_name(offset, tmp));
atmel_aes_reg_name(offset, tmp, sizeof(tmp)));
}
#endif /* VERBOSE_DEBUG */
@ -453,15 +476,15 @@ static inline int atmel_aes_complete(struct atmel_aes_dev *dd, int err)
return err;
}
static void atmel_aes_write_ctrl(struct atmel_aes_dev *dd, bool use_dma,
const u32 *iv)
static void atmel_aes_write_ctrl_key(struct atmel_aes_dev *dd, bool use_dma,
const u32 *iv, const u32 *key, int keylen)
{
u32 valmr = 0;
/* MR register must be set before IV registers */
if (dd->ctx->keylen == AES_KEYSIZE_128)
if (keylen == AES_KEYSIZE_128)
valmr |= AES_MR_KEYSIZE_128;
else if (dd->ctx->keylen == AES_KEYSIZE_192)
else if (keylen == AES_KEYSIZE_192)
valmr |= AES_MR_KEYSIZE_192;
else
valmr |= AES_MR_KEYSIZE_256;
@ -478,13 +501,19 @@ static void atmel_aes_write_ctrl(struct atmel_aes_dev *dd, bool use_dma,
atmel_aes_write(dd, AES_MR, valmr);
atmel_aes_write_n(dd, AES_KEYWR(0), dd->ctx->key,
SIZE_IN_WORDS(dd->ctx->keylen));
atmel_aes_write_n(dd, AES_KEYWR(0), key, SIZE_IN_WORDS(keylen));
if (iv && (valmr & AES_MR_OPMOD_MASK) != AES_MR_OPMOD_ECB)
atmel_aes_write_block(dd, AES_IVR(0), iv);
}
static inline void atmel_aes_write_ctrl(struct atmel_aes_dev *dd, bool use_dma,
const u32 *iv)
{
atmel_aes_write_ctrl_key(dd, use_dma, iv,
dd->ctx->key, dd->ctx->keylen);
}
/* CPU transfer */
@ -1769,6 +1798,137 @@ static struct aead_alg aes_gcm_alg = {
};
/* xts functions */
static inline struct atmel_aes_xts_ctx *
atmel_aes_xts_ctx_cast(struct atmel_aes_base_ctx *ctx)
{
return container_of(ctx, struct atmel_aes_xts_ctx, base);
}
static int atmel_aes_xts_process_data(struct atmel_aes_dev *dd);
static int atmel_aes_xts_start(struct atmel_aes_dev *dd)
{
struct atmel_aes_xts_ctx *ctx = atmel_aes_xts_ctx_cast(dd->ctx);
struct ablkcipher_request *req = ablkcipher_request_cast(dd->areq);
struct atmel_aes_reqctx *rctx = ablkcipher_request_ctx(req);
unsigned long flags;
int err;
atmel_aes_set_mode(dd, rctx);
err = atmel_aes_hw_init(dd);
if (err)
return atmel_aes_complete(dd, err);
/* Compute the tweak value from req->info with ecb(aes). */
flags = dd->flags;
dd->flags &= ~AES_FLAGS_MODE_MASK;
dd->flags |= (AES_FLAGS_ECB | AES_FLAGS_ENCRYPT);
atmel_aes_write_ctrl_key(dd, false, NULL,
ctx->key2, ctx->base.keylen);
dd->flags = flags;
atmel_aes_write_block(dd, AES_IDATAR(0), req->info);
return atmel_aes_wait_for_data_ready(dd, atmel_aes_xts_process_data);
}
static int atmel_aes_xts_process_data(struct atmel_aes_dev *dd)
{
struct ablkcipher_request *req = ablkcipher_request_cast(dd->areq);
bool use_dma = (req->nbytes >= ATMEL_AES_DMA_THRESHOLD);
u32 tweak[AES_BLOCK_SIZE / sizeof(u32)];
static const u32 one[AES_BLOCK_SIZE / sizeof(u32)] = {cpu_to_le32(1), };
u8 *tweak_bytes = (u8 *)tweak;
int i;
/* Read the computed ciphered tweak value. */
atmel_aes_read_block(dd, AES_ODATAR(0), tweak);
/*
* Hardware quirk:
* the order of the ciphered tweak bytes need to be reversed before
* writing them into the ODATARx registers.
*/
for (i = 0; i < AES_BLOCK_SIZE/2; ++i) {
u8 tmp = tweak_bytes[AES_BLOCK_SIZE - 1 - i];
tweak_bytes[AES_BLOCK_SIZE - 1 - i] = tweak_bytes[i];
tweak_bytes[i] = tmp;
}
/* Process the data. */
atmel_aes_write_ctrl(dd, use_dma, NULL);
atmel_aes_write_block(dd, AES_TWR(0), tweak);
atmel_aes_write_block(dd, AES_ALPHAR(0), one);
if (use_dma)
return atmel_aes_dma_start(dd, req->src, req->dst, req->nbytes,
atmel_aes_transfer_complete);
return atmel_aes_cpu_start(dd, req->src, req->dst, req->nbytes,
atmel_aes_transfer_complete);
}
static int atmel_aes_xts_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct atmel_aes_xts_ctx *ctx = crypto_ablkcipher_ctx(tfm);
int err;
err = xts_check_key(crypto_ablkcipher_tfm(tfm), key, keylen);
if (err)
return err;
memcpy(ctx->base.key, key, keylen/2);
memcpy(ctx->key2, key + keylen/2, keylen/2);
ctx->base.keylen = keylen/2;
return 0;
}
static int atmel_aes_xts_encrypt(struct ablkcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_XTS | AES_FLAGS_ENCRYPT);
}
static int atmel_aes_xts_decrypt(struct ablkcipher_request *req)
{
return atmel_aes_crypt(req, AES_FLAGS_XTS);
}
static int atmel_aes_xts_cra_init(struct crypto_tfm *tfm)
{
struct atmel_aes_xts_ctx *ctx = crypto_tfm_ctx(tfm);
tfm->crt_ablkcipher.reqsize = sizeof(struct atmel_aes_reqctx);
ctx->base.start = atmel_aes_xts_start;
return 0;
}
static struct crypto_alg aes_xts_alg = {
.cra_name = "xts(aes)",
.cra_driver_name = "atmel-xts-aes",
.cra_priority = ATMEL_AES_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct atmel_aes_xts_ctx),
.cra_alignmask = 0xf,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_xts_cra_init,
.cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
.setkey = atmel_aes_xts_setkey,
.encrypt = atmel_aes_xts_encrypt,
.decrypt = atmel_aes_xts_decrypt,
}
};
/* Probe functions */
static int atmel_aes_buff_init(struct atmel_aes_dev *dd)
@ -1877,6 +2037,9 @@ static void atmel_aes_unregister_algs(struct atmel_aes_dev *dd)
{
int i;
if (dd->caps.has_xts)
crypto_unregister_alg(&aes_xts_alg);
if (dd->caps.has_gcm)
crypto_unregister_aead(&aes_gcm_alg);
@ -1909,8 +2072,16 @@ static int atmel_aes_register_algs(struct atmel_aes_dev *dd)
goto err_aes_gcm_alg;
}
if (dd->caps.has_xts) {
err = crypto_register_alg(&aes_xts_alg);
if (err)
goto err_aes_xts_alg;
}
return 0;
err_aes_xts_alg:
crypto_unregister_aead(&aes_gcm_alg);
err_aes_gcm_alg:
crypto_unregister_alg(&aes_cfb64_alg);
err_aes_cfb64_alg:
@ -1928,6 +2099,7 @@ static void atmel_aes_get_cap(struct atmel_aes_dev *dd)
dd->caps.has_cfb64 = 0;
dd->caps.has_ctr32 = 0;
dd->caps.has_gcm = 0;
dd->caps.has_xts = 0;
dd->caps.max_burst_size = 1;
/* keep only major version number */
@ -1937,6 +2109,7 @@ static void atmel_aes_get_cap(struct atmel_aes_dev *dd)
dd->caps.has_cfb64 = 1;
dd->caps.has_ctr32 = 1;
dd->caps.has_gcm = 1;
dd->caps.has_xts = 1;
dd->caps.max_burst_size = 4;
break;
case 0x200:
@ -2138,7 +2311,7 @@ static int atmel_aes_probe(struct platform_device *pdev)
static int atmel_aes_remove(struct platform_device *pdev)
{
static struct atmel_aes_dev *aes_dd;
struct atmel_aes_dev *aes_dd;
aes_dd = platform_get_drvdata(pdev);
if (!aes_dd)

11
drivers/crypto/caam/Kconfig
View file

@ -74,7 +74,7 @@ config CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD
config CRYPTO_DEV_FSL_CAAM_CRYPTO_API
tristate "Register algorithm implementations with the Crypto API"
depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
depends on CRYPTO_DEV_FSL_CAAM_JR
default y
select CRYPTO_AEAD
select CRYPTO_AUTHENC
@ -89,7 +89,7 @@ config CRYPTO_DEV_FSL_CAAM_CRYPTO_API
config CRYPTO_DEV_FSL_CAAM_AHASH_API
tristate "Register hash algorithm implementations with Crypto API"
depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
depends on CRYPTO_DEV_FSL_CAAM_JR
default y
select CRYPTO_HASH
help
@ -101,7 +101,7 @@ config CRYPTO_DEV_FSL_CAAM_AHASH_API
config CRYPTO_DEV_FSL_CAAM_PKC_API
tristate "Register public key cryptography implementations with Crypto API"
depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
depends on CRYPTO_DEV_FSL_CAAM_JR
default y
select CRYPTO_RSA
help
@ -113,7 +113,7 @@ config CRYPTO_DEV_FSL_CAAM_PKC_API
config CRYPTO_DEV_FSL_CAAM_RNG_API
tristate "Register caam device for hwrng API"
depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
depends on CRYPTO_DEV_FSL_CAAM_JR
default y
select CRYPTO_RNG
select HW_RANDOM
@ -134,3 +134,6 @@ config CRYPTO_DEV_FSL_CAAM_DEBUG
help
Selecting this will enable printing of various debug
information in the CAAM driver.
config CRYPTO_DEV_FSL_CAAM_CRYPTO_API_DESC
def_tristate CRYPTO_DEV_FSL_CAAM_CRYPTO_API

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