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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-26 13:00:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-26 13:00:59 -0700
commit44a6b8442190cf213081060b610dae2e822f802b (patch)
tree2280bfe385bef8b6416a6493ea8988a975008165 /arch/x86
parent945c40c6b007eb4b07374a38ea37b2a34da306b1 (diff)
parenta43478863b16cb0986fd2ec9d1f1b9ebaaec5922 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: - Fixed algorithm construction hang when self-test fails. - Added SHA variants to talitos AEAD list. - New driver for Exynos random number generator. - Performance enhancements for arc4. - Added hwrng support to caam. - Added ahash support to caam. - Fixed bad kfree in aesni-intel. - Allow aesni-intel in FIPS mode. - Added atmel driver with support for AES/3DES/SHA. - Bug fixes for mv_cesa. - CRC hardware driver for BF60x family processors. * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (66 commits) crypto: twofish-avx - remove useless instruction crypto: testmgr - add aead cbc aes hmac sha1,256,512 test vectors crypto: talitos - add sha224, sha384 and sha512 to existing AEAD algorithms crypto: talitos - export the talitos_submit function crypto: talitos - move talitos structures to header file crypto: atmel - add new tests to tcrypt crypto: atmel - add Atmel SHA1/SHA256 driver crypto: atmel - add Atmel DES/TDES driver crypto: atmel - add Atmel AES driver ARM: AT91SAM9G45: add crypto peripherals crypto: testmgr - allow aesni-intel and ghash_clmulni-intel in fips mode hwrng: exynos - Add support for Exynos random number generator crypto: aesni-intel - fix wrong kfree pointer crypto: caam - ERA retrieval and printing for SEC device crypto: caam - Using alloc_coherent for caam job rings crypto: algapi - Fix hang on crypto allocation crypto: arc4 - now arc needs blockcipher support crypto: caam - one tasklet per job ring crypto: caam - consolidate memory barriers from job ring en/dequeue crypto: caam - only query h/w in job ring dequeue path ...
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/crypto/Makefile14
-rw-r--r--arch/x86/crypto/ablk_helper.c149
-rw-r--r--arch/x86/crypto/aes_glue.c2
-rw-r--r--arch/x86/crypto/aesni-intel_glue.c110
-rw-r--r--arch/x86/crypto/camellia_glue.c355
-rw-r--r--arch/x86/crypto/glue_helper.c307
-rw-r--r--arch/x86/crypto/serpent-avx-x86_64-asm_64.S704
-rw-r--r--arch/x86/crypto/serpent_avx_glue.c636
-rw-r--r--arch/x86/crypto/serpent_sse2_glue.c513
-rw-r--r--arch/x86/crypto/sha1_ssse3_asm.S2
-rw-r--r--arch/x86/crypto/sha1_ssse3_glue.c6
-rw-r--r--arch/x86/crypto/twofish-avx-x86_64-asm_64.S300
-rw-r--r--arch/x86/crypto/twofish_avx_glue.c624
-rw-r--r--arch/x86/crypto/twofish_glue_3way.c409
-rw-r--r--arch/x86/include/asm/crypto/ablk_helper.h31
-rw-r--r--arch/x86/include/asm/crypto/aes.h (renamed from arch/x86/include/asm/aes.h)0
-rw-r--r--arch/x86/include/asm/crypto/glue_helper.h115
-rw-r--r--arch/x86/include/asm/crypto/serpent-avx.h32
-rw-r--r--arch/x86/include/asm/crypto/serpent-sse2.h (renamed from arch/x86/include/asm/serpent.h)4
-rw-r--r--arch/x86/include/asm/crypto/twofish.h46
20 files changed, 3266 insertions, 1093 deletions
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index e191ac048b5..e908e5de82d 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -2,6 +2,9 @@
# Arch-specific CryptoAPI modules.
#
+obj-$(CONFIG_CRYPTO_ABLK_HELPER_X86) += ablk_helper.o
+obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o
+
obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o
obj-$(CONFIG_CRYPTO_SALSA20_586) += salsa20-i586.o
@@ -12,8 +15,10 @@ obj-$(CONFIG_CRYPTO_CAMELLIA_X86_64) += camellia-x86_64.o
obj-$(CONFIG_CRYPTO_BLOWFISH_X86_64) += blowfish-x86_64.o
obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
obj-$(CONFIG_CRYPTO_TWOFISH_X86_64_3WAY) += twofish-x86_64-3way.o
+obj-$(CONFIG_CRYPTO_TWOFISH_AVX_X86_64) += twofish-avx-x86_64.o
obj-$(CONFIG_CRYPTO_SALSA20_X86_64) += salsa20-x86_64.o
obj-$(CONFIG_CRYPTO_SERPENT_SSE2_X86_64) += serpent-sse2-x86_64.o
+obj-$(CONFIG_CRYPTO_SERPENT_AVX_X86_64) += serpent-avx-x86_64.o
obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o
obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o
@@ -30,16 +35,11 @@ camellia-x86_64-y := camellia-x86_64-asm_64.o camellia_glue.o
blowfish-x86_64-y := blowfish-x86_64-asm_64.o blowfish_glue.o
twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o
twofish-x86_64-3way-y := twofish-x86_64-asm_64-3way.o twofish_glue_3way.o
+twofish-avx-x86_64-y := twofish-avx-x86_64-asm_64.o twofish_avx_glue.o
salsa20-x86_64-y := salsa20-x86_64-asm_64.o salsa20_glue.o
serpent-sse2-x86_64-y := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o
+serpent-avx-x86_64-y := serpent-avx-x86_64-asm_64.o serpent_avx_glue.o
aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o fpu.o
-
ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
-
-# enable AVX support only when $(AS) can actually assemble the instructions
-ifeq ($(call as-instr,vpxor %xmm0$(comma)%xmm1$(comma)%xmm2,yes,no),yes)
-AFLAGS_sha1_ssse3_asm.o += -DSHA1_ENABLE_AVX_SUPPORT
-CFLAGS_sha1_ssse3_glue.o += -DSHA1_ENABLE_AVX_SUPPORT
-endif
sha1-ssse3-y := sha1_ssse3_asm.o sha1_ssse3_glue.o
diff --git a/arch/x86/crypto/ablk_helper.c b/arch/x86/crypto/ablk_helper.c
new file mode 100644
index 00000000000..43282fe04a8
--- /dev/null
+++ b/arch/x86/crypto/ablk_helper.c
@@ -0,0 +1,149 @@
+/*
+ * Shared async block cipher helpers
+ *
+ * Copyright (c) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * 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 <linux/kernel.h>
+#include <linux/crypto.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <crypto/algapi.h>
+#include <crypto/cryptd.h>
+#include <asm/i387.h>
+#include <asm/crypto/ablk_helper.h>
+
+int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+ struct crypto_ablkcipher *child = &ctx->cryptd_tfm->base;
+ int err;
+
+ crypto_ablkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
+ crypto_ablkcipher_set_flags(child, crypto_ablkcipher_get_flags(tfm)
+ & CRYPTO_TFM_REQ_MASK);
+ err = crypto_ablkcipher_setkey(child, key, key_len);
+ crypto_ablkcipher_set_flags(tfm, crypto_ablkcipher_get_flags(child)
+ & CRYPTO_TFM_RES_MASK);
+ return err;
+}
+EXPORT_SYMBOL_GPL(ablk_set_key);
+
+int __ablk_encrypt(struct ablkcipher_request *req)
+{
+ struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+ struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+ struct blkcipher_desc desc;
+
+ desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
+ desc.info = req->info;
+ desc.flags = 0;
+
+ return crypto_blkcipher_crt(desc.tfm)->encrypt(
+ &desc, req->dst, req->src, req->nbytes);
+}
+EXPORT_SYMBOL_GPL(__ablk_encrypt);
+
+int ablk_encrypt(struct ablkcipher_request *req)
+{
+ struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+ struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+
+ if (!irq_fpu_usable()) {
+ struct ablkcipher_request *cryptd_req =
+ ablkcipher_request_ctx(req);
+
+ memcpy(cryptd_req, req, sizeof(*req));
+ ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
+
+ return crypto_ablkcipher_encrypt(cryptd_req);
+ } else {
+ return __ablk_encrypt(req);
+ }
+}
+EXPORT_SYMBOL_GPL(ablk_encrypt);
+
+int ablk_decrypt(struct ablkcipher_request *req)
+{
+ struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+ struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+
+ if (!irq_fpu_usable()) {
+ struct ablkcipher_request *cryptd_req =
+ ablkcipher_request_ctx(req);
+
+ memcpy(cryptd_req, req, sizeof(*req));
+ ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
+
+ return crypto_ablkcipher_decrypt(cryptd_req);
+ } else {
+ struct blkcipher_desc desc;
+
+ desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
+ desc.info = req->info;
+ desc.flags = 0;
+
+ return crypto_blkcipher_crt(desc.tfm)->decrypt(
+ &desc, req->dst, req->src, req->nbytes);
+ }
+}
+EXPORT_SYMBOL_GPL(ablk_decrypt);
+
+void ablk_exit(struct crypto_tfm *tfm)
+{
+ struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ cryptd_free_ablkcipher(ctx->cryptd_tfm);
+}
+EXPORT_SYMBOL_GPL(ablk_exit);
+
+int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name)
+{
+ struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct cryptd_ablkcipher *cryptd_tfm;
+
+ cryptd_tfm = cryptd_alloc_ablkcipher(drv_name, 0, 0);
+ if (IS_ERR(cryptd_tfm))
+ return PTR_ERR(cryptd_tfm);
+
+ ctx->cryptd_tfm = cryptd_tfm;
+ tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) +
+ crypto_ablkcipher_reqsize(&cryptd_tfm->base);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ablk_init_common);
+
+int ablk_init(struct crypto_tfm *tfm)
+{
+ char drv_name[CRYPTO_MAX_ALG_NAME];
+
+ snprintf(drv_name, sizeof(drv_name), "__driver-%s",
+ crypto_tfm_alg_driver_name(tfm));
+
+ return ablk_init_common(tfm, drv_name);
+}
+EXPORT_SYMBOL_GPL(ablk_init);
+
+MODULE_LICENSE("GPL");
diff --git a/arch/x86/crypto/aes_glue.c b/arch/x86/crypto/aes_glue.c
index 8efcf42a9d7..59b37deb8c8 100644
--- a/arch/x86/crypto/aes_glue.c
+++ b/arch/x86/crypto/aes_glue.c
@@ -5,7 +5,7 @@
#include <linux/module.h>
#include <crypto/aes.h>
-#include <asm/aes.h>
+#include <asm/crypto/aes.h>
asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index ac7f5cd019e..34fdcff4d2c 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -30,7 +30,8 @@
#include <crypto/ctr.h>
#include <asm/cpu_device_id.h>
#include <asm/i387.h>
-#include <asm/aes.h>
+#include <asm/crypto/aes.h>
+#include <asm/crypto/ablk_helper.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/aead.h>
#include <linux/workqueue.h>
@@ -52,10 +53,6 @@
#define HAS_XTS
#endif
-struct async_aes_ctx {
- struct cryptd_ablkcipher *cryptd_tfm;
-};
-
/* 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.
@@ -377,87 +374,6 @@ static int ctr_crypt(struct blkcipher_desc *desc,
}
#endif
-static int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
- unsigned int key_len)
-{
- struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);
- struct crypto_ablkcipher *child = &ctx->cryptd_tfm->base;
- int err;
-
- crypto_ablkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
- crypto_ablkcipher_set_flags(child, crypto_ablkcipher_get_flags(tfm)
- & CRYPTO_TFM_REQ_MASK);
- err = crypto_ablkcipher_setkey(child, key, key_len);
- crypto_ablkcipher_set_flags(tfm, crypto_ablkcipher_get_flags(child)
- & CRYPTO_TFM_RES_MASK);
- return err;
-}
-
-static int ablk_encrypt(struct ablkcipher_request *req)
-{
- struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
- struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);
-
- if (!irq_fpu_usable()) {
- struct ablkcipher_request *cryptd_req =
- ablkcipher_request_ctx(req);
- memcpy(cryptd_req, req, sizeof(*req));
- ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
- return crypto_ablkcipher_encrypt(cryptd_req);
- } else {
- struct blkcipher_desc desc;
- desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
- desc.info = req->info;
- desc.flags = 0;
- return crypto_blkcipher_crt(desc.tfm)->encrypt(
- &desc, req->dst, req->src, req->nbytes);
- }
-}
-
-static int ablk_decrypt(struct ablkcipher_request *req)
-{
- struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
- struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);
-
- if (!irq_fpu_usable()) {
- struct ablkcipher_request *cryptd_req =
- ablkcipher_request_ctx(req);
- memcpy(cryptd_req, req, sizeof(*req));
- ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
- return crypto_ablkcipher_decrypt(cryptd_req);
- } else {
- struct blkcipher_desc desc;
- desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
- desc.info = req->info;
- desc.flags = 0;
- return crypto_blkcipher_crt(desc.tfm)->decrypt(
- &desc, req->dst, req->src, req->nbytes);
- }
-}
-
-static void ablk_exit(struct crypto_tfm *tfm)
-{
- struct async_aes_ctx *ctx = crypto_tfm_ctx(tfm);
-
- cryptd_free_ablkcipher(ctx->cryptd_tfm);
-}
-
-static int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name)
-{
- struct async_aes_ctx *ctx = crypto_tfm_ctx(tfm);
- struct cryptd_ablkcipher *cryptd_tfm;
-
- cryptd_tfm = cryptd_alloc_ablkcipher(drv_name, 0, 0);
- if (IS_ERR(cryptd_tfm))
- return PTR_ERR(cryptd_tfm);
-
- ctx->cryptd_tfm = cryptd_tfm;
- tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) +
- crypto_ablkcipher_reqsize(&cryptd_tfm->base);
-
- return 0;
-}
-
static int ablk_ecb_init(struct crypto_tfm *tfm)
{
return ablk_init_common(tfm, "__driver-ecb-aes-aesni");
@@ -613,7 +529,7 @@ static int rfc4106_set_key(struct crypto_aead *parent, const u8 *key,
struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
struct aesni_rfc4106_gcm_ctx *child_ctx =
aesni_rfc4106_gcm_ctx_get(cryptd_child);
- u8 *new_key_mem = NULL;
+ u8 *new_key_align, *new_key_mem = NULL;
if (key_len < 4) {
crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
@@ -637,9 +553,9 @@ static int rfc4106_set_key(struct crypto_aead *parent, const u8 *key,
if (!new_key_mem)
return -ENOMEM;
- new_key_mem = PTR_ALIGN(new_key_mem, AESNI_ALIGN);
- memcpy(new_key_mem, key, key_len);
- key = new_key_mem;
+ new_key_align = PTR_ALIGN(new_key_mem, AESNI_ALIGN);
+ memcpy(new_key_align, key, key_len);
+ key = new_key_align;
}
if (!irq_fpu_usable())
@@ -968,7 +884,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
+ .cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
@@ -989,7 +905,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
+ .cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
@@ -1033,7 +949,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
+ .cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
@@ -1098,7 +1014,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
+ .cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
@@ -1126,7 +1042,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
+ .cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
@@ -1150,7 +1066,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
+ .cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
@@ -1174,7 +1090,7 @@ static struct crypto_alg aesni_algs[] = { {
.cra_priority = 400,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
+ .cra_ctxsize = sizeof(struct async_helper_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
diff --git a/arch/x86/crypto/camellia_glue.c b/arch/x86/crypto/camellia_glue.c
index 3306dc0b139..eeb2b3b743e 100644
--- a/arch/x86/crypto/camellia_glue.c
+++ b/arch/x86/crypto/camellia_glue.c
@@ -5,10 +5,6 @@
*
* Camellia parts based on code by:
* Copyright (C) 2006 NTT (Nippon Telegraph and Telephone Corporation)
- * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by:
- * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
- * CTR part based on code (crypto/ctr.c) by:
- * (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.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
@@ -34,9 +30,9 @@
#include <linux/module.h>
#include <linux/types.h>
#include <crypto/algapi.h>
-#include <crypto/b128ops.h>
#include <crypto/lrw.h>
#include <crypto/xts.h>
+#include <asm/crypto/glue_helper.h>
#define CAMELLIA_MIN_KEY_SIZE 16
#define CAMELLIA_MAX_KEY_SIZE 32
@@ -1312,307 +1308,128 @@ static int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key,
&tfm->crt_flags);
}
-static int ecb_crypt(struct blkcipher_desc *desc, struct blkcipher_walk *walk,
- void (*fn)(struct camellia_ctx *, u8 *, const u8 *),
- void (*fn_2way)(struct camellia_ctx *, u8 *, const u8 *))
+static void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src)
{
- struct camellia_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- unsigned int bsize = CAMELLIA_BLOCK_SIZE;
- unsigned int nbytes;
- int err;
-
- err = blkcipher_walk_virt(desc, walk);
-
- while ((nbytes = walk->nbytes)) {
- u8 *wsrc = walk->src.virt.addr;
- u8 *wdst = walk->dst.virt.addr;
-
- /* Process two block batch */
- if (nbytes >= bsize * 2) {
- do {
- fn_2way(ctx, wdst, wsrc);
-
- wsrc += bsize * 2;
- wdst += bsize * 2;
- nbytes -= bsize * 2;
- } while (nbytes >= bsize * 2);
-
- if (nbytes < bsize)
- goto done;
- }
-
- /* Handle leftovers */
- do {
- fn(ctx, wdst, wsrc);
-
- wsrc += bsize;
- wdst += bsize;
- nbytes -= bsize;
- } while (nbytes >= bsize);
-
-done:
- err = blkcipher_walk_done(desc, walk, nbytes);
- }
-
- return err;
-}
-
-static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- struct blkcipher_walk walk;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_crypt(desc, &walk, camellia_enc_blk, camellia_enc_blk_2way);
-}
+ u128 iv = *src;
-static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- struct blkcipher_walk walk;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_crypt(desc, &walk, camellia_dec_blk, camellia_dec_blk_2way);
-}
+ camellia_dec_blk_2way(ctx, (u8 *)dst, (u8 *)src);
-static unsigned int __cbc_encrypt(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk)
-{
- struct camellia_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- unsigned int bsize = CAMELLIA_BLOCK_SIZE;
- unsigned int nbytes = walk->nbytes;
- u128 *src = (u128 *)walk->src.virt.addr;
- u128 *dst = (u128 *)walk->dst.virt.addr;
- u128 *iv = (u128 *)walk->iv;
-
- do {
- u128_xor(dst, src, iv);
- camellia_enc_blk(ctx, (u8 *)dst, (u8 *)dst);
- iv = dst;
-
- src += 1;
- dst += 1;
- nbytes -= bsize;
- } while (nbytes >= bsize);
-
- u128_xor((u128 *)walk->iv, (u128 *)walk->iv, iv);
- return nbytes;
+ u128_xor(&dst[1], &dst[1], &iv);
}
-static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src, u128 *iv)
{
- struct blkcipher_walk walk;
- int err;
+ be128 ctrblk;
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt(desc, &walk);
+ if (dst != src)
+ *dst = *src;
- while ((nbytes = walk.nbytes)) {
- nbytes = __cbc_encrypt(desc, &walk);
- err = blkcipher_walk_done(desc, &walk, nbytes);
- }
+ u128_to_be128(&ctrblk, iv);
+ u128_inc(iv);
- return err;
+ camellia_enc_blk_xor(ctx, (u8 *)dst, (u8 *)&ctrblk);
}
-static unsigned int __cbc_decrypt(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk)
+static void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src,
+ u128 *iv)
{
- struct camellia_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- unsigned int bsize = CAMELLIA_BLOCK_SIZE;
- unsigned int nbytes = walk->nbytes;
- u128 *src = (u128 *)walk->src.virt.addr;
- u128 *dst = (u128 *)walk->dst.virt.addr;
- u128 ivs[2 - 1];
- u128 last_iv;
+ be128 ctrblks[2];
- /* Start of the last block. */
- src += nbytes / bsize - 1;
- dst += nbytes / bsize - 1;
-
- last_iv = *src;
-
- /* Process two block batch */
- if (nbytes >= bsize * 2) {
- do {
- nbytes -= bsize * (2 - 1);
- src -= 2 - 1;
- dst -= 2 - 1;
-
- ivs[0] = src[0];
-
- camellia_dec_blk_2way(ctx, (u8 *)dst, (u8 *)src);
-
- u128_xor(dst + 1, dst + 1, ivs + 0);
-
- nbytes -= bsize;
- if (nbytes < bsize)
- goto done;
-
- u128_xor(dst, dst, src - 1);
- src -= 1;
- dst -= 1;
- } while (nbytes >= bsize * 2);
-
- if (nbytes < bsize)
- goto done;
+ if (dst != src) {
+ dst[0] = src[0];
+ dst[1] = src[1];
}
- /* Handle leftovers */
- for (;;) {
- camellia_dec_blk(ctx, (u8 *)dst, (u8 *)src);
-
- nbytes -= bsize;
- if (nbytes < bsize)
- break;
+ u128_to_be128(&ctrblks[0], iv);
+ u128_inc(iv);
+ u128_to_be128(&ctrblks[1], iv);
+ u128_inc(iv);
- u128_xor(dst, dst, src - 1);
- src -= 1;
- dst -= 1;
- }
-
-done:
- u128_xor(dst, dst, (u128 *)walk->iv);
- *(u128 *)walk->iv = last_iv;
-
- return nbytes;
+ camellia_enc_blk_xor_2way(ctx, (u8 *)dst, (u8 *)ctrblks);
}
-static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- struct blkcipher_walk walk;
- int err;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt(desc, &walk);
+static const struct common_glue_ctx camellia_enc = {
+ .num_funcs = 2,
+ .fpu_blocks_limit = -1,
+
+ .funcs = { {
+ .num_blocks = 2,
+ .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) }
+ }, {
+ .num_blocks = 1,
+ .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) }
+ } }
+};
- while ((nbytes = walk.nbytes)) {
- nbytes = __cbc_decrypt(desc, &walk);
- err = blkcipher_walk_done(desc, &walk, nbytes);
- }
+static const struct common_glue_ctx camellia_ctr = {
+ .num_funcs = 2,
+ .fpu_blocks_limit = -1,
+
+ .funcs = { {
+ .num_blocks = 2,
+ .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) }
+ }, {
+ .num_blocks = 1,
+ .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) }
+ } }
+};
- return err;
-}
+static const struct common_glue_ctx camellia_dec = {
+ .num_funcs = 2,
+ .fpu_blocks_limit = -1,
+
+ .funcs = { {
+ .num_blocks = 2,
+ .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) }
+ }, {
+ .num_blocks = 1,
+ .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) }
+ } }
+};
-static inline void u128_to_be128(be128 *dst, const u128 *src)
-{
- dst->a = cpu_to_be64(src->a);
- dst->b = cpu_to_be64(src->b);
-}
+static const struct common_glue_ctx camellia_dec_cbc = {
+ .num_funcs = 2,
+ .fpu_blocks_limit = -1,
+
+ .funcs = { {
+ .num_blocks = 2,
+ .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) }
+ }, {
+ .num_blocks = 1,
+ .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) }
+ } }
+};
-static inline void be128_to_u128(u128 *dst, const be128 *src)
+static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
+ struct scatterlist *src, unsigned int nbytes)
{
- dst->a = be64_to_cpu(src->a);
- dst->b = be64_to_cpu(src->b);
+ return glue_ecb_crypt_128bit(&camellia_enc, desc, dst, src, nbytes);
}
-static inline void u128_inc(u128 *i)
+static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
+ struct scatterlist *src, unsigned int nbytes)
{
- i->b++;
- if (!i->b)
- i->a++;
+ return glue_ecb_crypt_128bit(&camellia_dec, desc, dst, src, nbytes);
}
-static void ctr_crypt_final(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk)
+static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
+ struct scatterlist *src, unsigned int nbytes)
{
- struct camellia_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- u8 keystream[CAMELLIA_BLOCK_SIZE];
- u8 *src = walk->src.virt.addr;
- u8 *dst = walk->dst.virt.addr;
- unsigned int nbytes = walk->nbytes;
- u128 ctrblk;
-
- memcpy(keystream, src, nbytes);
- camellia_enc_blk_xor(ctx, keystream, walk->iv);
- memcpy(dst, keystream, nbytes);
-
- be128_to_u128(&ctrblk, (be128 *)walk->iv);
- u128_inc(&ctrblk);
- u128_to_be128((be128 *)walk->iv, &ctrblk);
+ return glue_cbc_encrypt_128bit(GLUE_FUNC_CAST(camellia_enc_blk), desc,
+ dst, src, nbytes);
}
-static unsigned int __ctr_crypt(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk)
+static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
+ struct scatterlist *src, unsigned int nbytes)
{
- struct camellia_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- unsigned int bsize = CAMELLIA_BLOCK_SIZE;
- unsigned int nbytes = walk->nbytes;
- u128 *src = (u128 *)walk->src.virt.addr;
- u128 *dst = (u128 *)walk->dst.virt.addr;
- u128 ctrblk;
- be128 ctrblocks[2];
-
- be128_to_u128(&ctrblk, (be128 *)walk->iv);
-
- /* Process two block batch */
- if (nbytes >= bsize * 2) {
- do {
- if (dst != src) {
- dst[0] = src[0];
- dst[1] = src[1];
- }
-
- /* create ctrblks for parallel encrypt */
- u128_to_be128(&ctrblocks[0], &ctrblk);
- u128_inc(&ctrblk);
- u128_to_be128(&ctrblocks[1], &ctrblk);
- u128_inc(&ctrblk);
-
- camellia_enc_blk_xor_2way(ctx, (u8 *)dst,
- (u8 *)ctrblocks);
-
- src += 2;
- dst += 2;
- nbytes -= bsize * 2;
- } while (nbytes >= bsize * 2);
-
- if (nbytes < bsize)
- goto done;
- }
-
- /* Handle leftovers */
- do {
- if (dst != src)
- *dst = *src;
-
- u128_to_be128(&ctrblocks[0], &ctrblk);
- u128_inc(&ctrblk);
-
- camellia_enc_blk_xor(ctx, (u8 *)dst, (u8 *)ctrblocks);
-
- src += 1;
- dst += 1;
- nbytes -= bsize;
- } while (nbytes >= bsize);
-
-done:
- u128_to_be128((be128 *)walk->iv, &ctrblk);
- return nbytes;
+ return glue_cbc_decrypt_128bit(&camellia_dec_cbc, desc, dst, src,
+ nbytes);
}
static int ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes)
{
- struct blkcipher_walk walk;
- int err;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt_block(desc, &walk, CAMELLIA_BLOCK_SIZE);
-
- while ((nbytes = walk.nbytes) >= CAMELLIA_BLOCK_SIZE) {
- nbytes = __ctr_crypt(desc, &walk);
- err = blkcipher_walk_done(desc, &walk, nbytes);
- }
-
- if (walk.nbytes) {
- ctr_crypt_final(desc, &walk);
- err = blkcipher_walk_done(desc, &walk, 0);
- }
-
- return err;
+ return glue_ctr_crypt_128bit(&camellia_ctr, desc, dst, src, nbytes);
}
static void encrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes)
diff --git a/arch/x86/crypto/glue_helper.c b/arch/x86/crypto/glue_helper.c
new file mode 100644
index 00000000000..4854f0f31e4
--- /dev/null
+++ b/arch/x86/crypto/glue_helper.c
@@ -0,0 +1,307 @@
+/*
+ * Shared glue code for 128bit block ciphers
+ *
+ * Copyright (c) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by:
+ * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
+ * CTR part based on code (crypto/ctr.c) by:
+ * (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.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 <linux/module.h>
+#include <crypto/b128ops.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,
+ struct blkcipher_walk *walk)
+{
+ void *ctx = crypto_blkcipher_ctx(desc->tfm);
+ const unsigned int bsize = 128 / 8;
+ unsigned int nbytes, i, func_bytes;
+ bool fpu_enabled = false;
+ int err;
+
+ err = blkcipher_walk_virt(desc, walk);
+
+ while ((nbytes = walk->nbytes)) {
+ u8 *wsrc = walk->src.virt.addr;
+ u8 *wdst = walk->dst.virt.addr;
+
+ fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit,
+ desc, fpu_enabled, nbytes);
+
+ for (i = 0; i &l