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-rw-r--r--arch/s390/crypto/Makefile8
-rw-r--r--arch/s390/crypto/aes_s390.c489
-rw-r--r--arch/s390/crypto/crypt_s390.h120
-rw-r--r--arch/s390/crypto/crypto_des.h18
-rw-r--r--arch/s390/crypto/des_check_key.c132
-rw-r--r--arch/s390/crypto/des_s390.c567
-rw-r--r--arch/s390/crypto/ghash_s390.c166
-rw-r--r--arch/s390/crypto/prng.c16
-rw-r--r--arch/s390/crypto/sha.h37
-rw-r--r--arch/s390/crypto/sha1_s390.c147
-rw-r--r--arch/s390/crypto/sha256_s390.c196
-rw-r--r--arch/s390/crypto/sha512_s390.c155
-rw-r--r--arch/s390/crypto/sha_common.c106
13 files changed, 1473 insertions, 684 deletions
diff --git a/arch/s390/crypto/Makefile b/arch/s390/crypto/Makefile
index 14e552c5cc4..7f0b7cda625 100644
--- a/arch/s390/crypto/Makefile
+++ b/arch/s390/crypto/Makefile
@@ -2,8 +2,10 @@
# Cryptographic API
#
-obj-$(CONFIG_CRYPTO_SHA1_S390) += sha1_s390.o
-obj-$(CONFIG_CRYPTO_SHA256_S390) += sha256_s390.o
-obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o des_check_key.o
+obj-$(CONFIG_CRYPTO_SHA1_S390) += sha1_s390.o sha_common.o
+obj-$(CONFIG_CRYPTO_SHA256_S390) += sha256_s390.o sha_common.o
+obj-$(CONFIG_CRYPTO_SHA512_S390) += sha512_s390.o sha_common.o
+obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o
obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o
obj-$(CONFIG_S390_PRNG) += prng.o
+obj-$(CONFIG_CRYPTO_GHASH_S390) += ghash_s390.o
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index a3f67f8b542..23223cd63e5 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -4,7 +4,7 @@
* s390 implementation of the AES Cipher Algorithm.
*
* s390 Version:
- * Copyright IBM Corp. 2005,2007
+ * Copyright IBM Corp. 2005, 2007
* Author(s): Jan Glauber (jang@de.ibm.com)
* Sebastian Siewior (sebastian@breakpoint.cc> SW-Fallback
*
@@ -17,21 +17,26 @@
*
*/
+#define KMSG_COMPONENT "aes_s390"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
#include <crypto/aes.h>
#include <crypto/algapi.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/spinlock.h>
#include "crypt_s390.h"
#define AES_KEYLEN_128 1
#define AES_KEYLEN_192 2
#define AES_KEYLEN_256 4
-static char keylen_flag = 0;
+static u8 *ctrblk;
+static DEFINE_SPINLOCK(ctrblk_lock);
+static char keylen_flag;
struct s390_aes_ctx {
- u8 iv[AES_BLOCK_SIZE];
u8 key[AES_MAX_KEY_SIZE];
long enc;
long dec;
@@ -42,6 +47,23 @@ struct s390_aes_ctx {
} fallback;
};
+struct pcc_param {
+ u8 key[32];
+ u8 tweak[16];
+ u8 block[16];
+ u8 bit[16];
+ u8 xts[16];
+};
+
+struct s390_xts_ctx {
+ u8 key[32];
+ u8 pcc_key[32];
+ long enc;
+ long dec;
+ int key_len;
+ struct crypto_blkcipher *fallback;
+};
+
/*
* Check if the key_len is supported by the HW.
* Returns 0 if it is, a positive number if it is not and software fallback is
@@ -75,14 +97,14 @@ static int setkey_fallback_cip(struct crypto_tfm *tfm, const u8 *in_key,
struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
int ret;
- sctx->fallback.blk->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
- sctx->fallback.blk->base.crt_flags |= (tfm->crt_flags &
+ sctx->fallback.cip->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
+ sctx->fallback.cip->base.crt_flags |= (tfm->crt_flags &
CRYPTO_TFM_REQ_MASK);
ret = crypto_cipher_setkey(sctx->fallback.cip, in_key, key_len);
if (ret) {
tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
- tfm->crt_flags |= (sctx->fallback.blk->base.crt_flags &
+ tfm->crt_flags |= (sctx->fallback.cip->base.crt_flags &
CRYPTO_TFM_RES_MASK);
}
return ret;
@@ -169,8 +191,9 @@ static int fallback_init_cip(struct crypto_tfm *tfm)
CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(sctx->fallback.cip)) {
- printk(KERN_ERR "Error allocating fallback algo %s\n", name);
- return PTR_ERR(sctx->fallback.blk);
+ pr_err("Allocating AES fallback algorithm %s failed\n",
+ name);
+ return PTR_ERR(sctx->fallback.cip);
}
return 0;
@@ -193,7 +216,6 @@ static struct crypto_alg aes_alg = {
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct s390_aes_ctx),
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(aes_alg.cra_list),
.cra_init = fallback_init_cip,
.cra_exit = fallback_exit_cip,
.cra_u = {
@@ -303,7 +325,8 @@ static int ecb_aes_crypt(struct blkcipher_desc *desc, long func, void *param,
u8 *in = walk->src.virt.addr;
ret = crypt_s390_km(func, param, out, in, n);
- BUG_ON((ret < 0) || (ret != n));
+ if (ret < 0 || ret != n)
+ return -EIO;
nbytes &= AES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, walk, nbytes);
@@ -349,7 +372,8 @@ static int fallback_init_blk(struct crypto_tfm *tfm)
CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(sctx->fallback.blk)) {
- printk(KERN_ERR "Error allocating fallback algo %s\n", name);
+ pr_err("Allocating AES fallback algorithm %s failed\n",
+ name);
return PTR_ERR(sctx->fallback.blk);
}
@@ -374,7 +398,6 @@ static struct crypto_alg ecb_aes_alg = {
.cra_ctxsize = sizeof(struct s390_aes_ctx),
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ecb_aes_alg.cra_list),
.cra_init = fallback_init_blk,
.cra_exit = fallback_exit_blk,
.cra_u = {
@@ -418,29 +441,36 @@ static int cbc_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
return aes_set_key(tfm, in_key, key_len);
}
-static int cbc_aes_crypt(struct blkcipher_desc *desc, long func, void *param,
+static int cbc_aes_crypt(struct blkcipher_desc *desc, long func,
struct blkcipher_walk *walk)
{
+ struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
int ret = blkcipher_walk_virt(desc, walk);
unsigned int nbytes = walk->nbytes;
+ struct {
+ u8 iv[AES_BLOCK_SIZE];
+ u8 key[AES_MAX_KEY_SIZE];
+ } param;
if (!nbytes)
goto out;
- memcpy(param, walk->iv, AES_BLOCK_SIZE);
+ memcpy(param.iv, walk->iv, AES_BLOCK_SIZE);
+ memcpy(param.key, sctx->key, sctx->key_len);
do {
/* only use complete blocks */
unsigned int n = nbytes & ~(AES_BLOCK_SIZE - 1);
u8 *out = walk->dst.virt.addr;
u8 *in = walk->src.virt.addr;
- ret = crypt_s390_kmc(func, param, out, in, n);
- BUG_ON((ret < 0) || (ret != n));
+ ret = crypt_s390_kmc(func, &param, out, in, n);
+ if (ret < 0 || ret != n)
+ return -EIO;
nbytes &= AES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, walk, nbytes);
} while ((nbytes = walk->nbytes));
- memcpy(walk->iv, param, AES_BLOCK_SIZE);
+ memcpy(walk->iv, param.iv, AES_BLOCK_SIZE);
out:
return ret;
@@ -457,7 +487,7 @@ static int cbc_aes_encrypt(struct blkcipher_desc *desc,
return fallback_blk_enc(desc, dst, src, nbytes);
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_aes_crypt(desc, sctx->enc, sctx->iv, &walk);
+ return cbc_aes_crypt(desc, sctx->enc, &walk);
}
static int cbc_aes_decrypt(struct blkcipher_desc *desc,
@@ -471,7 +501,7 @@ static int cbc_aes_decrypt(struct blkcipher_desc *desc,
return fallback_blk_dec(desc, dst, src, nbytes);
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_aes_crypt(desc, sctx->dec, sctx->iv, &walk);
+ return cbc_aes_crypt(desc, sctx->dec, &walk);
}
static struct crypto_alg cbc_aes_alg = {
@@ -484,7 +514,6 @@ static struct crypto_alg cbc_aes_alg = {
.cra_ctxsize = sizeof(struct s390_aes_ctx),
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(cbc_aes_alg.cra_list),
.cra_init = fallback_init_blk,
.cra_exit = fallback_exit_blk,
.cra_u = {
@@ -499,15 +528,375 @@ static struct crypto_alg cbc_aes_alg = {
}
};
-static int __init aes_init(void)
+static int xts_fallback_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int len)
+{
+ struct s390_xts_ctx *xts_ctx = crypto_tfm_ctx(tfm);
+ unsigned int ret;
+
+ xts_ctx->fallback->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
+ xts_ctx->fallback->base.crt_flags |= (tfm->crt_flags &
+ CRYPTO_TFM_REQ_MASK);
+
+ ret = crypto_blkcipher_setkey(xts_ctx->fallback, key, len);
+ if (ret) {
+ tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
+ tfm->crt_flags |= (xts_ctx->fallback->base.crt_flags &
+ CRYPTO_TFM_RES_MASK);
+ }
+ return ret;
+}
+
+static int xts_fallback_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_xts_ctx *xts_ctx = crypto_blkcipher_ctx(desc->tfm);
+ struct crypto_blkcipher *tfm;
+ unsigned int ret;
+
+ tfm = desc->tfm;
+ desc->tfm = xts_ctx->fallback;
+
+ ret = crypto_blkcipher_decrypt_iv(desc, dst, src, nbytes);
+
+ desc->tfm = tfm;
+ return ret;
+}
+
+static int xts_fallback_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_xts_ctx *xts_ctx = crypto_blkcipher_ctx(desc->tfm);
+ struct crypto_blkcipher *tfm;
+ unsigned int ret;
+
+ tfm = desc->tfm;
+ desc->tfm = xts_ctx->fallback;
+
+ ret = crypto_blkcipher_encrypt_iv(desc, dst, src, nbytes);
+
+ desc->tfm = tfm;
+ return ret;
+}
+
+static int xts_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct s390_xts_ctx *xts_ctx = crypto_tfm_ctx(tfm);
+ u32 *flags = &tfm->crt_flags;
+
+ switch (key_len) {
+ case 32:
+ xts_ctx->enc = KM_XTS_128_ENCRYPT;
+ xts_ctx->dec = KM_XTS_128_DECRYPT;
+ memcpy(xts_ctx->key + 16, in_key, 16);
+ memcpy(xts_ctx->pcc_key + 16, in_key + 16, 16);
+ break;
+ case 48:
+ xts_ctx->enc = 0;
+ xts_ctx->dec = 0;
+ xts_fallback_setkey(tfm, in_key, key_len);
+ break;
+ case 64:
+ xts_ctx->enc = KM_XTS_256_ENCRYPT;
+ xts_ctx->dec = KM_XTS_256_DECRYPT;
+ memcpy(xts_ctx->key, in_key, 32);
+ memcpy(xts_ctx->pcc_key, in_key + 32, 32);
+ break;
+ default:
+ *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ return -EINVAL;
+ }
+ xts_ctx->key_len = key_len;
+ return 0;
+}
+
+static int xts_aes_crypt(struct blkcipher_desc *desc, long func,
+ struct s390_xts_ctx *xts_ctx,
+ struct blkcipher_walk *walk)
+{
+ unsigned int offset = (xts_ctx->key_len >> 1) & 0x10;
+ int ret = blkcipher_walk_virt(desc, walk);
+ unsigned int nbytes = walk->nbytes;
+ unsigned int n;
+ u8 *in, *out;
+ struct pcc_param pcc_param;
+ struct {
+ u8 key[32];
+ u8 init[16];
+ } xts_param;
+
+ if (!nbytes)
+ goto out;
+
+ memset(pcc_param.block, 0, sizeof(pcc_param.block));
+ memset(pcc_param.bit, 0, sizeof(pcc_param.bit));
+ memset(pcc_param.xts, 0, sizeof(pcc_param.xts));
+ memcpy(pcc_param.tweak, walk->iv, sizeof(pcc_param.tweak));
+ memcpy(pcc_param.key, xts_ctx->pcc_key, 32);
+ ret = crypt_s390_pcc(func, &pcc_param.key[offset]);
+ if (ret < 0)
+ return -EIO;
+
+ memcpy(xts_param.key, xts_ctx->key, 32);
+ memcpy(xts_param.init, pcc_param.xts, 16);
+ do {
+ /* only use complete blocks */
+ n = nbytes & ~(AES_BLOCK_SIZE - 1);
+ out = walk->dst.virt.addr;
+ in = walk->src.virt.addr;
+
+ ret = crypt_s390_km(func, &xts_param.key[offset], out, in, n);
+ if (ret < 0 || ret != n)
+ return -EIO;
+
+ nbytes &= AES_BLOCK_SIZE - 1;
+ ret = blkcipher_walk_done(desc, walk, nbytes);
+ } while ((nbytes = walk->nbytes));
+out:
+ return ret;
+}
+
+static int xts_aes_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_xts_ctx *xts_ctx = crypto_blkcipher_ctx(desc->tfm);
+ struct blkcipher_walk walk;
+
+ if (unlikely(xts_ctx->key_len == 48))
+ return xts_fallback_encrypt(desc, dst, src, nbytes);
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return xts_aes_crypt(desc, xts_ctx->enc, xts_ctx, &walk);
+}
+
+static int xts_aes_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_xts_ctx *xts_ctx = crypto_blkcipher_ctx(desc->tfm);
+ struct blkcipher_walk walk;
+
+ if (unlikely(xts_ctx->key_len == 48))
+ return xts_fallback_decrypt(desc, dst, src, nbytes);
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return xts_aes_crypt(desc, xts_ctx->dec, xts_ctx, &walk);
+}
+
+static int xts_fallback_init(struct crypto_tfm *tfm)
+{
+ const char *name = tfm->__crt_alg->cra_name;
+ struct s390_xts_ctx *xts_ctx = crypto_tfm_ctx(tfm);
+
+ xts_ctx->fallback = crypto_alloc_blkcipher(name, 0,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
+
+ if (IS_ERR(xts_ctx->fallback)) {
+ pr_err("Allocating XTS fallback algorithm %s failed\n",
+ name);
+ return PTR_ERR(xts_ctx->fallback);
+ }
+ return 0;
+}
+
+static void xts_fallback_exit(struct crypto_tfm *tfm)
+{
+ struct s390_xts_ctx *xts_ctx = crypto_tfm_ctx(tfm);
+
+ crypto_free_blkcipher(xts_ctx->fallback);
+ xts_ctx->fallback = NULL;
+}
+
+static struct crypto_alg xts_aes_alg = {
+ .cra_name = "xts(aes)",
+ .cra_driver_name = "xts-aes-s390",
+ .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct s390_xts_ctx),
+ .cra_type = &crypto_blkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_init = xts_fallback_init,
+ .cra_exit = xts_fallback_exit,
+ .cra_u = {
+ .blkcipher = {
+ .min_keysize = 2 * AES_MIN_KEY_SIZE,
+ .max_keysize = 2 * AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .setkey = xts_aes_set_key,
+ .encrypt = xts_aes_encrypt,
+ .decrypt = xts_aes_decrypt,
+ }
+ }
+};
+
+static int xts_aes_alg_reg;
+
+static int ctr_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+ switch (key_len) {
+ case 16:
+ sctx->enc = KMCTR_AES_128_ENCRYPT;
+ sctx->dec = KMCTR_AES_128_DECRYPT;
+ break;
+ case 24:
+ sctx->enc = KMCTR_AES_192_ENCRYPT;
+ sctx->dec = KMCTR_AES_192_DECRYPT;
+ break;
+ case 32:
+ sctx->enc = KMCTR_AES_256_ENCRYPT;
+ sctx->dec = KMCTR_AES_256_DECRYPT;
+ break;
+ }
+
+ return aes_set_key(tfm, in_key, key_len);
+}
+
+static unsigned int __ctrblk_init(u8 *ctrptr, unsigned int nbytes)
+{
+ unsigned int i, n;
+
+ /* only use complete blocks, max. PAGE_SIZE */
+ n = (nbytes > PAGE_SIZE) ? PAGE_SIZE : nbytes & ~(AES_BLOCK_SIZE - 1);
+ for (i = AES_BLOCK_SIZE; i < n; i += AES_BLOCK_SIZE) {
+ memcpy(ctrptr + i, ctrptr + i - AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE);
+ crypto_inc(ctrptr + i, AES_BLOCK_SIZE);
+ }
+ return n;
+}
+
+static int ctr_aes_crypt(struct blkcipher_desc *desc, long func,
+ struct s390_aes_ctx *sctx, struct blkcipher_walk *walk)
+{
+ int ret = blkcipher_walk_virt_block(desc, walk, AES_BLOCK_SIZE);
+ unsigned int n, nbytes;
+ u8 buf[AES_BLOCK_SIZE], ctrbuf[AES_BLOCK_SIZE];
+ u8 *out, *in, *ctrptr = ctrbuf;
+
+ if (!walk->nbytes)
+ return ret;
+
+ if (spin_trylock(&ctrblk_lock))
+ ctrptr = ctrblk;
+
+ memcpy(ctrptr, walk->iv, AES_BLOCK_SIZE);
+ while ((nbytes = walk->nbytes) >= AES_BLOCK_SIZE) {
+ out = walk->dst.virt.addr;
+ in = walk->src.virt.addr;
+ while (nbytes >= AES_BLOCK_SIZE) {
+ if (ctrptr == ctrblk)
+ n = __ctrblk_init(ctrptr, nbytes);
+ else
+ n = AES_BLOCK_SIZE;
+ ret = crypt_s390_kmctr(func, sctx->key, out, in,
+ n, ctrptr);
+ if (ret < 0 || ret != n) {
+ if (ctrptr == ctrblk)
+ spin_unlock(&ctrblk_lock);
+ return -EIO;
+ }
+ if (n > AES_BLOCK_SIZE)
+ memcpy(ctrptr, ctrptr + n - AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE);
+ crypto_inc(ctrptr, AES_BLOCK_SIZE);
+ out += n;
+ in += n;
+ nbytes -= n;
+ }
+ ret = blkcipher_walk_done(desc, walk, nbytes);
+ }
+ if (ctrptr == ctrblk) {
+ if (nbytes)
+ memcpy(ctrbuf, ctrptr, AES_BLOCK_SIZE);
+ else
+ memcpy(walk->iv, ctrptr, AES_BLOCK_SIZE);
+ spin_unlock(&ctrblk_lock);
+ } else {
+ if (!nbytes)
+ memcpy(walk->iv, ctrptr, AES_BLOCK_SIZE);
+ }
+ /*
+ * final block may be < AES_BLOCK_SIZE, copy only nbytes
+ */
+ if (nbytes) {
+ out = walk->dst.virt.addr;
+ in = walk->src.virt.addr;
+ ret = crypt_s390_kmctr(func, sctx->key, buf, in,
+ AES_BLOCK_SIZE, ctrbuf);
+ if (ret < 0 || ret != AES_BLOCK_SIZE)
+ return -EIO;
+ memcpy(out, buf, nbytes);
+ crypto_inc(ctrbuf, AES_BLOCK_SIZE);
+ ret = blkcipher_walk_done(desc, walk, 0);
+ memcpy(walk->iv, ctrbuf, AES_BLOCK_SIZE);
+ }
+
+ return ret;
+}
+
+static int ctr_aes_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct blkcipher_walk walk;
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return ctr_aes_crypt(desc, sctx->enc, sctx, &walk);
+}
+
+static int ctr_aes_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct blkcipher_walk walk;
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return ctr_aes_crypt(desc, sctx->dec, sctx, &walk);
+}
+
+static struct crypto_alg ctr_aes_alg = {
+ .cra_name = "ctr(aes)",
+ .cra_driver_name = "ctr-aes-s390",
+ .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct s390_aes_ctx),
+ .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 = ctr_aes_set_key,
+ .encrypt = ctr_aes_encrypt,
+ .decrypt = ctr_aes_decrypt,
+ }
+ }
+};
+
+static int ctr_aes_alg_reg;
+
+static int __init aes_s390_init(void)
{
int ret;
- if (crypt_s390_func_available(KM_AES_128_ENCRYPT))
+ if (crypt_s390_func_available(KM_AES_128_ENCRYPT, CRYPT_S390_MSA))
keylen_flag |= AES_KEYLEN_128;
- if (crypt_s390_func_available(KM_AES_192_ENCRYPT))
+ if (crypt_s390_func_available(KM_AES_192_ENCRYPT, CRYPT_S390_MSA))
keylen_flag |= AES_KEYLEN_192;
- if (crypt_s390_func_available(KM_AES_256_ENCRYPT))
+ if (crypt_s390_func_available(KM_AES_256_ENCRYPT, CRYPT_S390_MSA))
keylen_flag |= AES_KEYLEN_256;
if (!keylen_flag)
@@ -515,9 +904,8 @@ static int __init aes_init(void)
/* z9 109 and z9 BC/EC only support 128 bit key length */
if (keylen_flag == AES_KEYLEN_128)
- printk(KERN_INFO
- "aes_s390: hardware acceleration only available for "
- "128 bit keys\n");
+ pr_info("AES hardware acceleration is only available for"
+ " 128-bit keys\n");
ret = crypto_register_alg(&aes_alg);
if (ret)
@@ -531,9 +919,42 @@ static int __init aes_init(void)
if (ret)
goto cbc_aes_err;
+ if (crypt_s390_func_available(KM_XTS_128_ENCRYPT,
+ CRYPT_S390_MSA | CRYPT_S390_MSA4) &&
+ crypt_s390_func_available(KM_XTS_256_ENCRYPT,
+ CRYPT_S390_MSA | CRYPT_S390_MSA4)) {
+ ret = crypto_register_alg(&xts_aes_alg);
+ if (ret)
+ goto xts_aes_err;
+ xts_aes_alg_reg = 1;
+ }
+
+ if (crypt_s390_func_available(KMCTR_AES_128_ENCRYPT,
+ CRYPT_S390_MSA | CRYPT_S390_MSA4) &&
+ crypt_s390_func_available(KMCTR_AES_192_ENCRYPT,
+ CRYPT_S390_MSA | CRYPT_S390_MSA4) &&
+ crypt_s390_func_available(KMCTR_AES_256_ENCRYPT,
+ CRYPT_S390_MSA | CRYPT_S390_MSA4)) {
+ ctrblk = (u8 *) __get_free_page(GFP_KERNEL);
+ if (!ctrblk) {
+ ret = -ENOMEM;
+ goto ctr_aes_err;
+ }
+ ret = crypto_register_alg(&ctr_aes_alg);
+ if (ret) {
+ free_page((unsigned long) ctrblk);
+ goto ctr_aes_err;
+ }
+ ctr_aes_alg_reg = 1;
+ }
+
out:
return ret;
+ctr_aes_err:
+ crypto_unregister_alg(&xts_aes_alg);
+xts_aes_err:
+ crypto_unregister_alg(&cbc_aes_alg);
cbc_aes_err:
crypto_unregister_alg(&ecb_aes_alg);
ecb_aes_err:
@@ -542,17 +963,23 @@ aes_err:
goto out;
}
-static void __exit aes_fini(void)
+static void __exit aes_s390_fini(void)
{
+ if (ctr_aes_alg_reg) {
+ crypto_unregister_alg(&ctr_aes_alg);
+ free_page((unsigned long) ctrblk);
+ }
+ if (xts_aes_alg_reg)
+ crypto_unregister_alg(&xts_aes_alg);
crypto_unregister_alg(&cbc_aes_alg);
crypto_unregister_alg(&ecb_aes_alg);
crypto_unregister_alg(&aes_alg);
}
-module_init(aes_init);
-module_exit(aes_fini);
+module_init(aes_s390_init);
+module_exit(aes_s390_fini);
-MODULE_ALIAS("aes");
+MODULE_ALIAS("aes-all");
MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm");
MODULE_LICENSE("GPL");
diff --git a/arch/s390/crypto/crypt_s390.h b/arch/s390/crypto/crypt_s390.h
index 95f5160df27..6c5cc6da711 100644
--- a/arch/s390/crypto/crypt_s390.h
+++ b/arch/s390/crypto/crypt_s390.h
@@ -3,7 +3,7 @@
*
* Support for s390 cryptographic instructions.
*
- * Copyright IBM Corp. 2003,2007
+ * Copyright IBM Corp. 2003, 2007
* Author(s): Thomas Spatzier
* Jan Glauber (jan.glauber@de.ibm.com)
*
@@ -17,6 +17,7 @@
#define _CRYPTO_ARCH_S390_CRYPT_S390_H
#include <asm/errno.h>
+#include <asm/facility.h>
#define CRYPT_S390_OP_MASK 0xFF00
#define CRYPT_S390_FUNC_MASK 0x00FF
@@ -24,13 +25,18 @@
#define CRYPT_S390_PRIORITY 300
#define CRYPT_S390_COMPOSITE_PRIORITY 400
+#define CRYPT_S390_MSA 0x1
+#define CRYPT_S390_MSA3 0x2
+#define CRYPT_S390_MSA4 0x4
+
/* s390 cryptographic operations */
enum crypt_s390_operations {
CRYPT_S390_KM = 0x0100,
CRYPT_S390_KMC = 0x0200,
CRYPT_S390_KIMD = 0x0300,
CRYPT_S390_KLMD = 0x0400,
- CRYPT_S390_KMAC = 0x0500
+ CRYPT_S390_KMAC = 0x0500,
+ CRYPT_S390_KMCTR = 0x0600
};
/*
@@ -51,6 +57,10 @@ enum crypt_s390_km_func {
KM_AES_192_DECRYPT = CRYPT_S390_KM | 0x13 | 0x80,
KM_AES_256_ENCRYPT = CRYPT_S390_KM | 0x14,
KM_AES_256_DECRYPT = CRYPT_S390_KM | 0x14 | 0x80,
+ KM_XTS_128_ENCRYPT = CRYPT_S390_KM | 0x32,
+ KM_XTS_128_DECRYPT = CRYPT_S390_KM | 0x32 | 0x80,
+ KM_XTS_256_ENCRYPT = CRYPT_S390_KM | 0x34,
+ KM_XTS_256_DECRYPT = CRYPT_S390_KM | 0x34 | 0x80,
};
/*
@@ -75,6 +85,26 @@ enum crypt_s390_kmc_func {
};
/*
+ * function codes for KMCTR (CIPHER MESSAGE WITH COUNTER)
+ * instruction
+ */
+enum crypt_s390_kmctr_func {
+ KMCTR_QUERY = CRYPT_S390_KMCTR | 0x0,
+ KMCTR_DEA_ENCRYPT = CRYPT_S390_KMCTR | 0x1,
+ KMCTR_DEA_DECRYPT = CRYPT_S390_KMCTR | 0x1 | 0x80,
+ KMCTR_TDEA_128_ENCRYPT = CRYPT_S390_KMCTR | 0x2,
+ KMCTR_TDEA_128_DECRYPT = CRYPT_S390_KMCTR | 0x2 | 0x80,
+ KMCTR_TDEA_192_ENCRYPT = CRYPT_S390_KMCTR | 0x3,
+ KMCTR_TDEA_192_DECRYPT = CRYPT_S390_KMCTR | 0x3 | 0x80,
+ KMCTR_AES_128_ENCRYPT = CRYPT_S390_KMCTR | 0x12,
+ KMCTR_AES_128_DECRYPT = CRYPT_S390_KMCTR | 0x12 | 0x80,
+ KMCTR_AES_192_ENCRYPT = CRYPT_S390_KMCTR | 0x13,
+ KMCTR_AES_192_DECRYPT = CRYPT_S390_KMCTR | 0x13 | 0x80,
+ KMCTR_AES_256_ENCRYPT = CRYPT_S390_KMCTR | 0x14,
+ KMCTR_AES_256_DECRYPT = CRYPT_S390_KMCTR | 0x14 | 0x80,
+};
+
+/*
* function codes for KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
* instruction
*/
@@ -82,6 +112,8 @@ enum crypt_s390_kimd_func {
KIMD_QUERY = CRYPT_S390_KIMD | 0,
KIMD_SHA_1 = CRYPT_S390_KIMD | 1,
KIMD_SHA_256 = CRYPT_S390_KIMD | 2,
+ KIMD_SHA_512 = CRYPT_S390_KIMD | 3,
+ KIMD_GHASH = CRYPT_S390_KIMD | 65,
};
/*
@@ -92,6 +124,7 @@ enum crypt_s390_klmd_func {
KLMD_QUERY = CRYPT_S390_KLMD | 0,
KLMD_SHA_1 = CRYPT_S390_KLMD | 1,
KLMD_SHA_256 = CRYPT_S390_KLMD | 2,
+ KLMD_SHA_512 = CRYPT_S390_KLMD | 3,
};
/*
@@ -282,6 +315,45 @@ static inline int crypt_s390_kmac(long func, void *param,
}
/**
+ * crypt_s390_kmctr:
+ * @func: the function code passed to KMCTR; see crypt_s390_kmctr_func
+ * @param: address of parameter block; see POP for details on each func
+ * @dest: address of destination memory area
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ * @counter: address of counter value
+ *
+ * Executes the KMCTR (CIPHER MESSAGE WITH COUNTER) operation of the CPU.
+ *
+ * Returns -1 for failure, 0 for the query func, number of processed
+ * bytes for encryption/decryption funcs
+ */
+static inline int crypt_s390_kmctr(long func, void *param, u8 *dest,
+ const u8 *src, long src_len, u8 *counter)
+{
+ register long __func asm("0") = func & CRYPT_S390_FUNC_MASK;
+ register void *__param asm("1") = param;
+ register const u8 *__src asm("2") = src;
+ register long __src_len asm("3") = src_len;
+ register u8 *__dest asm("4") = dest;
+ register u8 *__ctr asm("6") = counter;
+ int ret = -1;
+
+ asm volatile(
+ "0: .insn rrf,0xb92d0000,%3,%1,%4,0 \n" /* KMCTR opcode */
+ "1: brc 1,0b \n" /* handle partial completion */
+ " la %0,0\n"
+ "2:\n"
+ EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+ : "+d" (ret), "+a" (__src), "+d" (__src_len), "+a" (__dest),
+ "+a" (__ctr)
+ : "d" (__func), "a" (__param) : "cc", "memory");
+ if (ret < 0)
+ return ret;
+ return (func & CRYPT_S390_FUNC_MASK) ? src_len - __src_len : __src_len;
+}
+
+/**
* crypt_s390_func_available:
* @func: the function code of the specific function; 0 if op in general
*
@@ -289,11 +361,22 @@ static inline int crypt_s390_kmac(long func, void *param,
*
* Returns 1 if func available; 0 if func or op in general not available
*/
-static inline int crypt_s390_func_available(int func)
+static inline int crypt_s390_func_available(int func,
+ unsigned int facility_mask)
{
unsigned char status[16];
int ret;
+ if (facility_mask & CRYPT_S390_MSA && !test_facility(17))
+ return 0;
+
+ if (facility_mask & CRYPT_S390_MSA3 &&
+ (!test_facility(2) || !test_facility(76)))
+ return 0;
+ if (facility_mask & CRYPT_S390_MSA4 &&
+ (!test_facility(2) || !test_facility(77)))
+ return 0;
+
switch (func & CRYPT_S390_OP_MASK) {
case CRYPT_S390_KM:
ret = crypt_s390_km(KM_QUERY, &status, NULL, NULL, 0);
@@ -310,6 +393,10 @@ static inline int crypt_s390_func_available(int func)
case CRYPT_S390_KMAC:
ret = crypt_s390_kmac(KMAC_QUERY, &status, NULL, 0);
break;
+ case CRYPT_S390_KMCTR:
+ ret = crypt_s390_kmctr(KMCTR_QUERY, &status, NULL, NULL, 0,
+ NULL);
+ break;
default:
return 0;
}
@@ -320,4 +407,31 @@ static inline int crypt_s390_func_available(int func)
return (status[func >> 3] & (0x80 >> (func & 7))) != 0;
}
+/**
+ * crypt_s390_pcc:
+ * @func: the function code passed to KM; see crypt_s390_km_func
+ * @param: address of parameter block; see POP for details on each func
+ *
+ * Executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) operation of the CPU.
+ *
+ * Returns -1 for failure, 0 for success.
+ */
+static inline int crypt_s390_pcc(long func, void *param)
+{
+ register long __func asm("0") = func & 0x7f; /* encrypt or decrypt */
+ register void *__param asm("1") = param;
+ int ret = -1;
+
+ asm volatile(
+ "0: .insn rre,0xb92c0000,0,0 \n" /* PCC opcode */
+ "1: brc 1,0b \n" /* handle partial completion */
+ " la %0,0\n"
+ "2:\n"
+ EX_TABLE(0b,2b) EX_TABLE(1b,2b)
+ : "+d" (ret)
+ : "d" (__func), "a" (__param) : "cc", "memory");
+ return ret;
+}
+
+
#endif /* _CRYPTO_ARCH_S390_CRYPT_S390_H */
diff --git a/arch/s390/crypto/crypto_des.h b/arch/s390/crypto/crypto_des.h
deleted file mode 100644
index c964b64111d..00000000000
--- a/arch/s390/crypto/crypto_des.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Cryptographic API.
- *
- * Function for checking keys for the DES and Tripple DES Encryption
- * algorithms.
- *
- * 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.
- *
- */
-#ifndef __CRYPTO_DES_H__
-#define __CRYPTO_DES_H__
-
-extern int crypto_des_check_key(const u8*, unsigned int, u32*);
-
-#endif //__CRYPTO_DES_H__
diff --git a/arch/s390/crypto/des_check_key.c b/arch/s390/crypto/des_check_key.c
deleted file mode 100644
index 5706af26644..00000000000
--- a/arch/s390/crypto/des_check_key.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Cryptographic API.
- *
- * Function for checking keys for the DES and Tripple DES Encryption
- * algorithms.
- *
- * Originally released as descore by Dana L. How <how@isl.stanford.edu>.
- * Modified by Raimar Falke <rf13@inf.tu-dresden.de> for the Linux-Kernel.
- * Derived from Cryptoapi and Nettle implementations, adapted for in-place
- * scatterlist interface. Changed LGPL to GPL per section 3 of the LGPL.
- *
- * s390 Version:
- * Copyright IBM Corp. 2003
- * Author(s): Thomas Spatzier
- * Jan Glauber (jan.glauber@de.ibm.com)
- *
- * Derived from "crypto/des.c"
- * Copyright (c) 1992 Dana L. How.
- * Copyright (c) Raimar Falke <rf13@inf.tu-dresden.de>
- * Copyright (c) Gisle Sflensminde <gisle@ii.uib.no>
- * Copyright (C) 2001 Niels Mvller.
- * Copyright (c) 2002 James Morris <jmorris@intercode.com.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 Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/crypto.h>
-#include "crypto_des.h"
-
-#define ROR(d,c,o) ((d) = (d) >> (c) | (d) << (o))
-
-static const u8 parity[] = {
- 8,1,0,8,0,8,8,0,0,8,8,0,8,0,2,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,3,
- 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
- 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
- 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
- 0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,
- 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
- 8,0,0,8,0,8,8,0,0,8,8,0,8,0,0,8,0,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,
- 4,8,8,0,8,0,0,8,8,0,0,8,0,8,8,0,8,5,0,8,0,8,8,0,0,8,8,0,8,0,6,8,
-};
-
-/*
- * RFC2451: Weak key checks SHOULD be performed.
- */
-int
-crypto_des_check_key(const u8 *key, unsigned int keylen, u32 *flags)
-{
- u32 n, w;
-
- n = parity[key[0]]; n <<= 4;
- n |= parity[key[1]]; n <<= 4;
- n |= parity[key[2]]; n <<= 4;
- n |= parity[key[3]]; n <<= 4;
- n |= parity[key[4]]; n <<= 4;
- n |= parity[key[5]]; n <<= 4;
- n |= parity[key[6]]; n <<= 4;
- n |= parity[key[7]];
- w = 0x88888888L;
-
- if ((*flags & CRYPTO_TFM_REQ_WEAK_KEY)
- && !((n - (w >> 3)) & w)) { /* 1 in 10^10 keys passes this test */
- if (n < 0x41415151) {
- if (n < 0x31312121) {
- if (n < 0x14141515) {
- /* 01 01 01 01 01 01 01 01 */
- if (n == 0x11111111) goto weak;
- /* 01 1F 01 1F 01 0E 01 0E */
- if (n == 0x13131212) goto weak;
- } else {
- /* 01 E0 01 E0 01 F1 01 F1 */
- if (n == 0x14141515) goto weak;
- /* 01 FE 01 FE 01 FE 01 FE */
- if (n == 0x16161616) goto weak;
- }
- } else {
- if (n < 0x34342525) {
- /* 1F 01 1F 01 0E 01 0E 01 */
- if (n == 0x31312121) goto weak;
- /* 1F 1F 1F 1F 0E 0E 0E 0E (?) */
- if (n == 0x33332222) goto weak;
- } else {
- /* 1F E0 1F E0 0E F1 0E F1 */
- if (n == 0x34342525) goto weak;
- /* 1F FE 1F FE 0E FE 0E FE */
- if (n == 0x36362626) goto weak;
- }
- }
- } else {
- if (n < 0x61616161) {
- if (n < 0x44445555) {
- /* E0 01 E0 01 F1 01 F1 01 */
- if (n == 0x41415151) goto weak;
- /* E0 1F E0 1F F1 0E F1 0E */
- if (n == 0x43435252) goto weak;
- } else {
- /* E0 E0 E0 E0 F1 F1 F1 F1 (?) */
- if (n == 0x44445555) goto weak;
- /* E0 FE E0 FE F1 FE F1 FE */
- if (n == 0x46465656) goto weak;
- }
- } else {
- if (n < 0x64646565) {
- /* FE 01 FE 01 FE 01 FE 01 */
- if (n == 0x61616161) goto weak;
- /* FE 1F FE 1F FE 0E FE 0E */
- if (n == 0x63636262) goto weak;
- } else {
- /* FE E0 FE E0 FE F1 FE F1 */
- if (n == 0x64646565) goto weak;
- /* FE FE FE FE FE FE FE FE */
- if (n == 0x66666666) goto weak;
- }
- }
- }
- }
- return 0;
-weak:
- *flags |= CRYPTO_TFM_RES_WEAK_KEY;
- return -EINVAL;
-}
-
-EXPORT_SYMBOL(crypto_des_check_key);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Key Check function for DES & DES3 Cipher Algorithms");
diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c
index ea22707f435..7acb77f7ef1 100644
--- a/arch/s390/crypto/des_s390.c
+++ b/arch/s390/crypto/des_s390.c
@@ -3,7 +3,7 @@
*
* s390 implementation of the DES Cipher Algorithm.
*
- * Copyright IBM Corp. 2003,2007
+ * Copyright IBM Corp. 2003, 2011
* Author(s): Thomas Spatzier
* Jan Glauber (jan.glauber@de.ibm.com)
*
@@ -14,63 +14,53 @@
*
*/
-#include <crypto/algapi.h>
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/crypto.h>
+#include <crypto/algapi.h>
+#include <crypto/des.h>
#include "crypt_s390.h"
-#include "crypto_des.h"
-
-#define DES_BLOCK_SIZE 8
-#define DES_KEY_SIZE 8
-#define DES3_128_KEY_SIZE (2 * DES_KEY_SIZE)
-#define DES3_128_BLOCK_SIZE DES_BLOCK_SIZE
-
-#define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE)
-#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE
-
-struct crypt_s390_des_ctx {
- u8 iv[DES_BLOCK_SIZE];
- u8 key[DES_KEY_SIZE];
-};
+#define DES3_KEY_SIZE (3 * DES_KEY_SIZE)
-struct crypt_s390_des3_128_ctx {
- u8 iv[DES_BLOCK_SIZE];
- u8 key[DES3_128_KEY_SIZE];
-};
+static u8 *ctrblk;
+static DEFINE_SPINLOCK(ctrblk_lock);
-struct crypt_s390_des3_192_ctx {
+struct s390_des_ctx {
u8 iv[DES_BLOCK_SIZE];
- u8 key[DES3_192_KEY_SIZE];
+ u8 key[DES3_KEY_SIZE];
};
static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen)
+ unsigned int key_len)
{
- struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
u32 *flags = &tfm->crt_flags;
- int ret;
+ u32 tmp[DES_EXPKEY_WORDS];
- /* test if key is valid (not a weak key) */
- ret = crypto_des_check_key(key, keylen, flags);
- if (ret == 0)
- memcpy(dctx->key, key, keylen);
- return ret;
+ /* check for weak keys */
+ if (!des_ekey(tmp, key) && (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
+ *flags |= CRYPTO_TFM_RES_WEAK_KEY;
+ return -EINVAL;
+ }
+
+ memcpy(ctx->key, key, key_len);
+ return 0;
}
static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
- struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- crypt_s390_km(KM_DEA_ENCRYPT, dctx->key, out, in, DES_BLOCK_SIZE);
+ crypt_s390_km(KM_DEA_ENCRYPT, ctx->key, out, in, DES_BLOCK_SIZE);
}
static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
- struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- crypt_s390_km(KM_DEA_DECRYPT, dctx->key, out, in, DES_BLOCK_SIZE);
+ crypt_s390_km(KM_DEA_DECRYPT, ctx->key, out, in, DES_BLOCK_SIZE);
}
static struct crypto_alg des_alg = {
@@ -79,9 +69,8 @@ static struct crypto_alg des_alg = {
.cra_priority = CRYPT_S390_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(des_alg.cra_list),
.cra_u = {
.cipher = {
.cia_min_keysize = DES_KEY_SIZE,
@@ -94,7 +83,7 @@ static struct crypto_alg des_alg = {
};
static int ecb_desall_crypt(struct blkcipher_desc *desc, long func,
- void *param, struct blkcipher_walk *walk)
+ u8 *key, struct blkcipher_walk *walk)
{
int ret = blkcipher_walk_virt(desc, walk);
unsigned int nbytes;
@@ -105,8 +94,9 @@ static int ecb_desall_crypt(struct blkcipher_desc *desc, long func,
u8 *out = walk->dst.virt.addr;
u8 *in = walk->src.virt.addr;
- ret = crypt_s390_km(func, param, out, in, n);
- BUG_ON((ret < 0) || (ret != n));
+ ret = crypt_s390_km(func, key, out, in, n);
+ if (ret < 0 || ret != n)
+ return -EIO;
nbytes &= DES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, walk, nbytes);
@@ -116,28 +106,35 @@ static int ecb_desall_crypt(struct blkcipher_desc *desc, long func,
}
static int cbc_desall_crypt(struct blkcipher_desc *desc, long func,
- void *param, struct blkcipher_walk *walk)
+ struct blkcipher_walk *walk)
{
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
int ret = blkcipher_walk_virt(desc, walk);
unsigned int nbytes = walk->nbytes;
+ struct {
+ u8 iv[DES_BLOCK_SIZE];
+ u8 key[DES3_KEY_SIZE];
+ } param;
if (!nbytes)
goto out;
- memcpy(param, walk->iv, DES_BLOCK_SIZE);
+ memcpy(param.iv, walk->iv, DES_BLOCK_SIZE);
+ memcpy(param.key, ctx->key, DES3_KEY_SIZE);
do {
/* only use complete blocks */
unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
u8 *out = walk->dst.virt.addr;
u8 *in = walk->src.virt.addr;
- ret = crypt_s390_kmc(func, param, out, in, n);
- BUG_ON((ret < 0) || (ret != n));
+ ret = crypt_s390_kmc(func, &param, out, in, n);
+ if (ret < 0 || ret != n)
+ return -EIO;
nbytes &= DES_BLOCK_SIZE - 1;
ret = blkcipher_walk_done(desc, walk, nbytes);
} while ((nbytes = walk->nbytes));
- memcpy(walk->iv, param, DES_BLOCK_SIZE);
+ memcpy(walk->iv, param.iv, DES_BLOCK_SIZE);
out:
return ret;
@@ -147,22 +144,22 @@ static int ecb_des_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, KM_DEA_ENCRYPT, sctx->key, &walk);
+ return ecb_desall_crypt(desc, KM_DEA_ENCRYPT, ctx->key, &walk);
}
static int ecb_des_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, KM_DEA_DECRYPT, sctx->key, &walk);
+ return ecb_desall_crypt(desc, KM_DEA_DECRYPT, ctx->key, &walk);
}
static struct crypto_alg ecb_des_alg = {
@@ -171,10 +168,9 @@ static struct crypto_alg ecb_des_alg = {
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
.cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ecb_des_alg.cra_list),
.cra_u = {
.blkcipher = {
.min_keysize = DES_KEY_SIZE,
@@ -190,22 +186,20 @@ static int cbc_des_encrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_DEA_ENCRYPT, sctx->iv, &walk);
+ return cbc_desall_crypt(desc, KMC_DEA_ENCRYPT, &walk);
}
static int cbc_des_decrypt(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
- struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_DEA_DECRYPT, sctx->iv, &walk);
+ return cbc_desall_crypt(desc, KMC_DEA_DECRYPT, &walk);
}
static struct crypto_alg cbc_des_alg = {
@@ -214,10 +208,9 @@ static struct crypto_alg cbc_des_alg = {
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
.cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(cbc_des_alg.cra_list),
.cra_u = {
.blkcipher = {
.min_keysize = DES_KEY_SIZE,
@@ -237,326 +230,317 @@ static struct crypto_alg cbc_des_alg = {
* complementation keys. Any weakness is obviated by the use of
* multiple keys.
*
- * However, if the two independent 64-bit keys are equal,
- * then the DES3 operation is simply the same as DES.
- * Implementers MUST reject keys that exhibit this property.
+ * However, if the first two or last two independent 64-bit keys are
+ * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
+ * same as DES. Implementers MUST reject keys that exhibit this
+ * property.
*
*/
-static int des3_128_setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen)
+static int des3_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int key_len)
{
- int i, ret;
- struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
- const u8 *temp_key = key;
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
u32 *flags = &tfm->crt_flags;
- if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
+ if (!(crypto_memneq(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
+ crypto_memneq(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
+ DES_KEY_SIZE)) &&
+ (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
+ *flags |= CRYPTO_TFM_RES_WEAK_KEY;
return -EINVAL;
}
- for (i = 0; i < 2; i++, temp_key += DES_KEY_SIZE) {
- ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
- if (ret < 0)
- return ret;
- }
- memcpy(dctx->key, key, keylen);
+ memcpy(ctx->key, key, key_len);
return 0;
}
-static void des3_128_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void des3_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- crypt_s390_km(KM_TDEA_128_ENCRYPT, dctx->key, dst, (void*)src,
- DES3_128_BLOCK_SIZE);
+ crypt_s390_km(KM_TDEA_192_ENCRYPT, ctx->key, dst, src, DES_BLOCK_SIZE);
}
-static void des3_128_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void des3_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
- crypt_s390_km(KM_TDEA_128_DECRYPT, dctx->key, dst, (void*)src,
- DES3_128_BLOCK_SIZE);
+ crypt_s390_km(KM_TDEA_192_DECRYPT, ctx->key, dst, src, DES_BLOCK_SIZE);
}
-static struct crypto_alg des3_128_alg = {
- .cra_name = "des3_ede128",
- .cra_driver_name = "des3_ede128-s390",
+static struct crypto_alg des3_alg = {
+ .cra_name = "des3_ede",
+ .cra_driver_name = "des3_ede-s390",
.cra_priority = CRYPT_S390_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = DES3_128_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(des3_128_alg.cra_list),
.cra_u = {
.cipher = {
- .cia_min_keysize = DES3_128_KEY_SIZE,
- .cia_max_keysize = DES3_128_KEY_SIZE,
- .cia_setkey = des3_128_setkey,
- .cia_encrypt = des3_128_encrypt,
- .cia_decrypt = des3_128_decrypt,
+ .cia_min_keysize = DES3_KEY_SIZE,
+ .cia_max_keysize = DES3_KEY_SIZE,
+ .cia_setkey = des3_setkey,
+ .cia_encrypt = des3_encrypt,
+ .cia_decrypt = des3_decrypt,
}
}
};
-static int ecb_des3_128_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int ecb_des3_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
{
- struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, KM_TDEA_128_ENCRYPT, sctx->key, &walk);
+ return ecb_desall_crypt(desc, KM_TDEA_192_ENCRYPT, ctx->key, &walk);
}
-static int ecb_des3_128_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int ecb_des3_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
{
- struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, KM_TDEA_128_DECRYPT, sctx->key, &walk);
+ return ecb_desall_crypt(desc, KM_TDEA_192_DECRYPT, ctx->key, &walk);
}
-static struct crypto_alg ecb_des3_128_alg = {
- .cra_name = "ecb(des3_ede128)",
- .cra_driver_name = "ecb-des3_ede128-s390",
+static struct crypto_alg ecb_des3_alg = {
+ .cra_name = "ecb(des3_ede)",
+ .cra_driver_name = "ecb-des3_ede-s390",
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = DES3_128_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(
- ecb_des3_128_alg.cra_list),
.cra_u = {
.blkcipher = {
- .min_keysize = DES3_128_KEY_SIZE,
- .max_keysize = DES3_128_KEY_SIZE,
- .setkey = des3_128_setkey,
- .encrypt = ecb_des3_128_encrypt,
- .decrypt = ecb_des3_128_decrypt,
+ .min_keysize = DES3_KEY_SIZE,
+ .max_keysize = DES3_KEY_SIZE,
+ .setkey = des3_setkey,
+ .encrypt = ecb_des3_encrypt,
+ .decrypt = ecb_des3_decrypt,
}
}
};
-static int cbc_des3_128_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int cbc_des3_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
{
- struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_TDEA_128_ENCRYPT, sctx->iv, &walk);
+ return cbc_desall_crypt(desc, KMC_TDEA_192_ENCRYPT, &walk);
}
-static int cbc_des3_128_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int cbc_des3_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
{
- struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_TDEA_128_DECRYPT, sctx->iv, &walk);
+ return cbc_desall_crypt(desc, KMC_TDEA_192_DECRYPT, &walk);
}
-static struct crypto_alg cbc_des3_128_alg = {
- .cra_name = "cbc(des3_ede128)",
- .cra_driver_name = "cbc-des3_ede128-s390",
+static struct crypto_alg cbc_des3_alg = {
+ .cra_name = "cbc(des3_ede)",
+ .cra_driver_name = "cbc-des3_ede-s390",
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = DES3_128_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(
- cbc_des3_128_alg.cra_list),
.cra_u = {
.blkcipher = {
- .min_keysize = DES3_128_KEY_SIZE,
- .max_keysize = DES3_128_KEY_SIZE,
- .ivsize = DES3_128_BLOCK_SIZE,
- .setkey = des3_128_setkey,
- .encrypt = cbc_des3_128_encrypt,
- .decrypt = cbc_des3_128_decrypt,
+ .min_keysize = DES3_KEY_SIZE,
+ .max_keysize = DES3_KEY_SIZE,
+ .ivsize = DES_BLOCK_SIZE,
+ .setkey = des3_setkey,
+ .encrypt = cbc_des3_encrypt,
+ .decrypt = cbc_des3_decrypt,
}
}
};
-/*
- * RFC2451:
- *
- * For DES-EDE3, there is no known need to reject weak or
- * complementation keys. Any weakness is obviated by the use of
- * multiple keys.
- *
- * However, if the first two or last two independent 64-bit keys are
- * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
- * same as DES. Implementers MUST reject keys that exhibit this
- * property.
- *
- */
-static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen)
+static unsigned int __ctrblk_init(u8 *ctrptr, unsigned int nbytes)
{
- int i, ret;
- struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
- const u8 *temp_key = key;
- u32 *flags = &tfm->crt_flags;
+ unsigned int i, n;
- if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
- memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
- DES_KEY_SIZE))) {
-
- *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
- return -EINVAL;
+ /* align to block size, max. PAGE_SIZE */
+ n = (nbytes > PAGE_SIZE) ? PAGE_SIZE : nbytes & ~(DES_BLOCK_SIZE - 1);
+ for (i = DES_BLOCK_SIZE; i < n; i += DES_BLOCK_SIZE) {
+ memcpy(ctrptr + i, ctrptr + i - DES_BLOCK_SIZE, DES_BLOCK_SIZE);
+ crypto_inc(ctrptr + i, DES_BLOCK_SIZE);
}
- for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) {
- ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
- if (ret < 0)
- return ret;
- }
- memcpy(dctx->key, key, keylen);
- return 0;
-}
-
-static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
- struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
-
- crypt_s390_km(KM_TDEA_192_ENCRYPT, dctx->key, dst, (void*)src,
- DES3_192_BLOCK_SIZE);
+ return n;
}
-static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static int ctr_desall_crypt(struct blkcipher_desc *desc, long func,
+ struct s390_des_ctx *ctx,
+ struct blkcipher_walk *walk)
{
- struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
-
- crypt_s390_km(KM_TDEA_192_DECRYPT, dctx->key, dst, (void*)src,
- DES3_192_BLOCK_SIZE);
-}
-
-static struct crypto_alg des3_192_alg = {
- .cra_name = "des3_ede",
- .cra_driver_name = "des3_ede-s390",
- .cra_priority = CRYPT_S390_PRIORITY,
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = DES3_192_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list),
- .cra_u = {
- .cipher = {
- .cia_min_keysize = DES3_192_KEY_SIZE,
- .cia_max_keysize = DES3_192_KEY_SIZE,
- .cia_setkey = des3_192_setkey,
- .cia_encrypt = des3_192_encrypt,
- .cia_decrypt = des3_192_decrypt,
+ int ret = blkcipher_walk_virt_block(desc, walk, DES_BLOCK_SIZE);
+ unsigned int n, nbytes;
+ u8 buf[DES_BLOCK_SIZE], ctrbuf[DES_BLOCK_SIZE];
+ u8 *out, *in, *ctrptr = ctrbuf;
+
+ if (!walk->nbytes)
+ return ret;
+
+ if (spin_trylock(&ctrblk_lock))
+ ctrptr = ctrblk;
+
+ memcpy(ctrptr, walk->iv, DES_BLOCK_SIZE);
+ while ((nbytes = walk->nbytes) >= DES_BLOCK_SIZE) {
+ out = walk->dst.virt.addr;
+ in = walk->src.virt.addr;
+ while (nbytes >= DES_BLOCK_SIZE) {
+ if (ctrptr == ctrblk)
+ n = __ctrblk_init(ctrptr, nbytes);
+ else
+ n = DES_BLOCK_SIZE;
+ ret = crypt_s390_kmctr(func, ctx->key, out, in,
+ n, ctrptr);
+ if (ret < 0 || ret != n) {
+ if (ctrptr == ctrblk)
+ spin_unlock(&ctrblk_lock);
+ return -EIO;
+ }
+ if (n > DES_BLOCK_SIZE)
+ memcpy(ctrptr, ctrptr + n - DES_BLOCK_SIZE,
+ DES_BLOCK_SIZE);
+ crypto_inc(ctrptr, DES_BLOCK_SIZE);
+ out += n;
+ in += n;
+ nbytes -= n;
}
+ ret = blkcipher_walk_done(desc, walk, nbytes);
}
-};
+ if (ctrptr == ctrblk) {
+ if (nbytes)
+ memcpy(ctrbuf, ctrptr, DES_BLOCK_SIZE);
+ else
+ memcpy(walk->iv, ctrptr, DES_BLOCK_SIZE);
+ spin_unlock(&ctrblk_lock);
+ } else {
+ if (!nbytes)
+ memcpy(walk->iv, ctrptr, DES_BLOCK_SIZE);
+ }
+ /* final block may be < DES_BLOCK_SIZE, copy only nbytes */
+ if (nbytes) {
+ out = walk->dst.virt.addr;
+ in = walk->src.virt.addr;
+ ret = crypt_s390_kmctr(func, ctx->key, buf, in,
+ DES_BLOCK_SIZE, ctrbuf);
+ if (ret < 0 || ret != DES_BLOCK_SIZE)
+ return -EIO;
+ memcpy(out, buf, nbytes);
+ crypto_inc(ctrbuf, DES_BLOCK_SIZE);
+ ret = blkcipher_walk_done(desc, walk, 0);
+ memcpy(walk->iv, ctrbuf, DES_BLOCK_SIZE);
+ }
+ return ret;
+}
-static int ecb_des3_192_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int ctr_des_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
{
- struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, KM_TDEA_192_ENCRYPT, sctx->key, &walk);
+ return ctr_desall_crypt(desc, KMCTR_DEA_ENCRYPT, ctx, &walk);
}
-static int ecb_des3_192_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int ctr_des_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
{
- struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_desall_crypt(desc, KM_TDEA_192_DECRYPT, sctx->key, &walk);
+ return ctr_desall_crypt(desc, KMCTR_DEA_DECRYPT, ctx, &walk);
}
-static struct crypto_alg ecb_des3_192_alg = {
- .cra_name = "ecb(des3_ede)",
- .cra_driver_name = "ecb-des3_ede-s390",
+static struct crypto_alg ctr_des_alg = {
+ .cra_name = "ctr(des)",
+ .cra_driver_name = "ctr-des-s390",
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = DES3_192_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(
- ecb_des3_192_alg.cra_list),
.cra_u = {
.blkcipher = {
- .min_keysize = DES3_192_KEY_SIZE,
- .max_keysize = DES3_192_KEY_SIZE,
- .setkey = des3_192_setkey,
- .encrypt = ecb_des3_192_encrypt,
- .decrypt = ecb_des3_192_decrypt,
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .ivsize = DES_BLOCK_SIZE,
+ .setkey = des_setkey,
+ .encrypt = ctr_des_encrypt,
+ .decrypt = ctr_des_decrypt,
}
}
};
-static int cbc_des3_192_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int ctr_des3_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
{
- struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_TDEA_192_ENCRYPT, sctx->iv, &walk);
+ return ctr_desall_crypt(desc, KMCTR_TDEA_192_ENCRYPT, ctx, &walk);
}
-static int cbc_des3_192_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
+static int ctr_des3_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
{
- struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
struct blkcipher_walk walk;
blkcipher_walk_init(&walk, dst, src, nbytes);
- return cbc_desall_crypt(desc, KMC_TDEA_192_DECRYPT, sctx->iv, &walk);
+ return ctr_desall_crypt(desc, KMCTR_TDEA_192_DECRYPT, ctx, &walk);
}
-static struct crypto_alg cbc_des3_192_alg = {
- .cra_name = "cbc(des3_ede)",
- .cra_driver_name = "cbc-des3_ede-s390",
+static struct crypto_alg ctr_des3_alg = {
+ .cra_name = "ctr(des3_ede)",
+ .cra_driver_name = "ctr-des3_ede-s390",
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = DES3_192_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
.cra_type = &crypto_blkcipher_type,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(
- cbc_des3_192_alg.cra_list),
.cra_u = {
.blkcipher = {
- .min_keysize = DES3_192_KEY_SIZE,
- .max_keysize = DES3_192_KEY_SIZE,
- .ivsize = DES3_192_BLOCK_SIZE,
- .setkey = des3_192_setkey,
- .encrypt = cbc_des3_192_encrypt,
- .decrypt = cbc_des3_192_decrypt,
+ .min_keysize = DES3_KEY_SIZE,
+ .max_keysize = DES3_KEY_SIZE,
+ .ivsize = DES_BLOCK_SIZE,
+ .setkey = des3_setkey,
+ .encrypt = ctr_des3_encrypt,
+ .decrypt = ctr_des3_decrypt,
}
}
};
-static int init(void)
+static int __init des_s390_init(void)
{
- int ret = 0;
+ int ret;
- if (!crypt_s390_func_available(KM_DEA_ENCRYPT) ||
- !crypt_s390_func_available(KM_TDEA_128_ENCRYPT) ||
- !crypt_s390_func_available(KM_TDEA_192_ENCRYPT))
+ if (!crypt_s390_func_available(KM_DEA_ENCRYPT, CRYPT_S390_MSA) ||
+ !crypt_s390_func_available(KM_TDEA_192_ENCRYPT, CRYPT_S390_MSA))
return -EOPNOTSUPP;
ret = crypto_register_alg(&des_alg);
@@ -568,41 +552,46 @@ static int init(void)
ret = crypto_register_alg(&cbc_des_alg);
if (ret)
goto cbc_des_err;
-
- ret = crypto_register_alg(&des3_128_alg);
+ ret = crypto_register_alg(&des3_alg);
if (ret)
- goto des3_128_err;
- ret = crypto_register_alg(&ecb_des3_128_alg);
- if (ret)
- goto ecb_des3_128_err;
- ret = crypto_register_alg(&cbc_des3_128_alg);
- if (ret)
- goto cbc_des3_128_err;
-
- ret = crypto_register_alg(&des3_192_alg);
+ goto des3_err;
+ ret = crypto_register_alg(&ecb_des3_alg);
if (ret)
- goto des3_192_err;
- ret = crypto_register_alg(&ecb_des3_192_alg);
+ goto ecb_des3_err;
+ ret = crypto_register_alg(&cbc_des3_alg);
if (ret)
- goto ecb_des3_192_err;
- ret = crypto_register_alg(&cbc_des3_192_alg);
- if (ret)
- goto cbc_des3_192_err;
-
+ goto cbc_des3_err;
+
+ if (crypt_s390_func_available(KMCTR_DEA_ENCRYPT,
+ CRYPT_S390_MSA | CRYPT_S390_MSA4) &&
+ crypt_s390_func_available(KMCTR_TDEA_192_ENCRYPT,
+ CRYPT_S390_MSA | CRYPT_S390_MSA4)) {
+ ret = crypto_register_alg(&ctr_des_alg);
+ if (ret)
+ goto ctr_des_err;
+ ret = crypto_register_alg(&ctr_des3_alg);
+ if (ret)
+ goto ctr_des3_err;
+ ctrblk = (u8 *) __get_free_page(GFP_KERNEL);
+ if (!ctrblk) {
+ ret = -ENOMEM;
+ goto ctr_mem_err;
+ }
+ }
out:
return ret;
-cbc_des3_192_err:
- crypto_unregister_alg(&ecb_des3_192_alg);
-ecb_des3_192_err:
- crypto_unregister_alg(&des3_192_alg);
-des3_192_err:
- crypto_unregister_alg(&cbc_des3_128_alg);
-cbc_des3_128_err:
- crypto_unregister_alg(&ecb_des3_128_alg);
-ecb_des3_128_err:
- crypto_unregister_alg(&des3_128_alg);
-des3_128_err:
+ctr_mem_err:
+ crypto_unregister_alg(&ctr_des3_alg);
+ctr_des3_err:
+ crypto_unregister_alg(&ctr_des_alg);
+ctr_des_err:
+ crypto_unregister_alg(&cbc_des3_alg);
+cbc_des3_err:
+ crypto_unregister_alg(&ecb_des3_alg);
+ecb_des3_err:
+ crypto_unregister_alg(&des3_alg);
+des3_err:
crypto_unregister_alg(&cbc_des_alg);
cbc_des_err:
crypto_unregister_alg(&ecb_des_alg);
@@ -612,21 +601,23 @@ des_err:
goto out;
}
-static void __exit fini(void)
+static void __exit des_s390_exit(void)
{
- crypto_unregister_alg(&cbc_des3_192_alg);
- crypto_unregister_alg(&ecb_des3_192_alg);
- crypto_unregister_alg(&des3_192_alg);
- crypto_unregister_alg(&cbc_des3_128_alg);
- crypto_unregister_alg(&ecb_des3_128_alg);
- crypto_unregister_alg(&des3_128_alg);
+ if (ctrblk) {
+ crypto_unregister_alg(&ctr_des_alg);
+ crypto_unregister_alg(&ctr_des3_alg);
+ free_page((unsigned long) ctrblk);
+ }
+ crypto_unregister_alg(&cbc_des3_alg);
+ crypto_unregister_alg(&ecb_des3_alg);
+ crypto_unregister_alg(&des3_alg);
crypto_unregister_alg(&cbc_des_alg);
crypto_unregister_alg(&ecb_des_alg);
crypto_unregister_alg(&des_alg);
}
-module_init(init);
-module_exit(fini);
+module_init(des_s390_init);
+module_exit(des_s390_exit);
MODULE_ALIAS("des");
MODULE_ALIAS("des3_ede");
diff --git a/arch/s390/crypto/ghash_s390.c b/arch/s390/crypto/ghash_s390.c
new file mode 100644
index 00000000000..d43485d142e
--- /dev/null
+++ b/arch/s390/crypto/ghash_s390.c
@@ -0,0 +1,166 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 implementation of the GHASH algorithm for GCM (Galois/Counter Mode).
+ *
+ * Copyright IBM Corp. 2011
+ * Author(s): Gerald Schaefer <gerald.schaefer@de.ibm.com>
+ */
+
+#include <crypto/internal/hash.h>
+#include <linux/module.h>
+
+#include "crypt_s390.h"
+
+#define GHASH_BLOCK_SIZE 16
+#define GHASH_DIGEST_SIZE 16
+
+struct ghash_ctx {
+ u8 icv[16];
+ u8 key[16];
+};
+
+struct ghash_desc_ctx {
+ u8 buffer[GHASH_BLOCK_SIZE];
+ u32 bytes;
+};
+
+static int ghash_init(struct shash_desc *desc)
+{
+ struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ memset(dctx, 0, sizeof(*dctx));
+
+ return 0;
+}
+
+static int ghash_setkey(struct crypto_shash *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ struct ghash_ctx *ctx = crypto_shash_ctx(tfm);
+
+ if (keylen != GHASH_BLOCK_SIZE) {
+ crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+ }
+
+ memcpy(ctx->key, key, GHASH_BLOCK_SIZE);
+ memset(ctx->icv, 0, GHASH_BLOCK_SIZE);
+
+ return 0;
+}
+
+static int ghash_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+ struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
+ unsigned int n;
+ u8 *buf = dctx->buffer;
+ int ret;
+
+ if (dctx->bytes) {
+ u8 *pos = buf + (GHASH_BLOCK_SIZE - dctx->bytes);
+
+ n = min(srclen, dctx->bytes);
+ dctx->bytes -= n;
+ srclen -= n;
+
+ memcpy(pos, src, n);
+ src += n;
+
+ if (!dctx->bytes) {
+ ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf,
+ GHASH_BLOCK_SIZE);
+ if (ret != GHASH_BLOCK_SIZE)
+ return -EIO;
+ }
+ }
+
+ n = srclen & ~(GHASH_BLOCK_SIZE - 1);
+ if (n) {
+ ret = crypt_s390_kimd(KIMD_GHASH, ctx, src, n);
+ if (ret != n)
+ return -EIO;
+ src += n;
+ srclen -= n;
+ }
+
+ if (srclen) {
+ dctx->bytes = GHASH_BLOCK_SIZE - srclen;
+ memcpy(buf, src, srclen);
+ }
+
+ return 0;
+}
+
+static int ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx)
+{
+ u8 *buf = dctx->buffer;
+ int ret;
+
+ if (dctx->bytes) {
+ u8 *pos = buf + (GHASH_BLOCK_SIZE - dctx->bytes);
+
+ memset(pos, 0, dctx->bytes);
+
+ ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf, GHASH_BLOCK_SIZE);
+ if (ret != GHASH_BLOCK_SIZE)
+ return -EIO;
+ }
+
+ dctx->bytes = 0;
+ return 0;
+}
+
+static int ghash_final(struct shash_desc *desc, u8 *dst)
+{
+ struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+ struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
+ int ret;
+
+ ret = ghash_flush(ctx, dctx);
+ if (!ret)
+ memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE);
+ return ret;
+}
+
+static struct shash_alg ghash_alg = {
+ .digestsize = GHASH_DIGEST_SIZE,
+ .init = ghash_init,
+ .update = ghash_update,
+ .final = ghash_final,
+ .setkey = ghash_setkey,
+ .descsize = sizeof(struct ghash_desc_ctx),
+ .base = {
+ .cra_name = "ghash",
+ .cra_driver_name = "ghash-s390",
+ .cra_priority = CRYPT_S390_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_blocksize = GHASH_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct ghash_ctx),
+ .cra_module = THIS_MODULE,
+ },
+};
+
+static int __init ghash_mod_init(void)
+{
+ if (!crypt_s390_func_available(KIMD_GHASH,
+ CRYPT_S390_MSA | CRYPT_S390_MSA4))
+ return -EOPNOTSUPP;
+
+ return crypto_register_shash(&ghash_alg);
+}
+
+static void __exit ghash_mod_exit(void)
+{
+ crypto_unregister_shash(&ghash_alg);
+}
+
+module_init(ghash_mod_init);
+module_exit(ghash_mod_exit);
+
+MODULE_ALIAS("ghash");
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("GHASH Message Digest Algorithm, s390 implementation");
diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index 0cfefddd837..94a35a4c1b4 100644
--- a/arch/s390/crypto/prng.c
+++ b/arch/s390/crypto/prng.c
@@ -1,5 +1,5 @@
/*
- * Copyright IBM Corp. 2006,2007
+ * Copyright IBM Corp. 2006, 2007
* Author(s): Jan Glauber <jan.glauber@de.ibm.com>
* Driver for the s390 pseudo random number generator
*/
@@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/random.h>
+#include <linux/slab.h>
#include <asm/debug.h>
#include <asm/uaccess.h>
@@ -75,7 +76,7 @@ static void prng_seed(int nbytes)
/* Add the entropy */
while (nbytes >= 8) {
- *((__u64 *)parm_block) ^= *((__u64 *)buf+i*8);
+ *((__u64 *)parm_block) ^= *((__u64 *)(buf+i));
prng_add_entropy();
i += 8;
nbytes -= 8;
@@ -151,6 +152,7 @@ static const struct file_operations prng_fops = {
.open = &prng_open,
.release = NULL,
.read = &prng_read,
+ .llseek = noop_llseek,
};
static struct miscdevice prng_dev = {
@@ -164,7 +166,7 @@ static int __init prng_init(void)
int ret;
/* check if the CPU has a PRNG */
- if (!crypt_s390_func_available(KMC_PRNG))
+ if (!crypt_s390_func_available(KMC_PRNG, CRYPT_S390_MSA))
return -EOPNOTSUPP;
if (prng_chunk_size < 8)
@@ -185,11 +187,8 @@ static int __init prng_init(void)
prng_seed(16);
ret = misc_register(&prng_dev);
- if (ret) {
- printk(KERN_WARNING
- "Could not register misc device for PRNG.\n");
+ if (ret)
goto out_buf;
- }
return 0;
out_buf:
@@ -202,8 +201,7 @@ out_free:
static void __exit prng_exit(void)
{
/* wipe me */
- memset(p->buf, 0, prng_chunk_size);
- kfree(p->buf);
+ kzfree(p->buf);
kfree(p);
misc_deregister(&prng_dev);
diff --git a/arch/s390/crypto/sha.h b/arch/s390/crypto/sha.h
new file mode 100644
index 00000000000..f4e9dc71675
--- /dev/null
+++ b/arch/s390/crypto/sha.h
@@ -0,0 +1,37 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 generic implementation of the SHA Secure Hash Algorithms.
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Jan Glauber (jang@de.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.
+ *
+ */
+#ifndef _CRYPTO_ARCH_S390_SHA_H
+#define _CRYPTO_ARCH_S390_SHA_H
+
+#include <linux/crypto.h>
+#include <crypto/sha.h>
+
+/* must be big enough for the largest SHA variant */
+#define SHA_MAX_STATE_SIZE 16
+#define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
+
+struct s390_sha_ctx {
+ u64 count; /* message length in bytes */
+ u32 state[SHA_MAX_STATE_SIZE];
+ u8 buf[2 * SHA_MAX_BLOCK_SIZE];
+ int func; /* KIMD function to use */
+};
+
+struct shash_desc;
+
+int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
+int s390_sha_final(struct shash_desc *desc, u8 *out);
+
+#endif
diff --git a/arch/s390/crypto/sha1_s390.c b/arch/s390/crypto/sha1_s390.c
index 5a834f6578a..a1b3a9dc9d8 100644
--- a/arch/s390/crypto/sha1_s390.c
+++ b/arch/s390/crypto/sha1_s390.c
@@ -8,7 +8,7 @@
* implementation written by Steve Reid.
*
* s390 Version:
- * Copyright IBM Corp. 2003,2007
+ * Copyright IBM Corp. 2003, 2007
* Author(s): Thomas Spatzier
* Jan Glauber (jan.glauber@de.ibm.com)
*
@@ -23,22 +23,17 @@
* any later version.
*
*/
+#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/crypto.h>
#include <crypto/sha.h>
#include "crypt_s390.h"
+#include "sha.h"
-struct s390_sha1_ctx {
- u64 count; /* message length */
- u32 state[5];
- u8 buf[2 * SHA1_BLOCK_SIZE];
-};
-
-static void sha1_init(struct crypto_tfm *tfm)
+static int sha1_init(struct shash_desc *desc)
{
- struct s390_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
sctx->state[0] = SHA1_H0;
sctx->state[1] = SHA1_H1;
@@ -46,114 +41,68 @@ static void sha1_init(struct crypto_tfm *tfm)
sctx->state[3] = SHA1_H3;
sctx->state[4] = SHA1_H4;
sctx->count = 0;
+ sctx->func = KIMD_SHA_1;
+
+ return 0;
}
-static void sha1_update(struct crypto_tfm *tfm, const u8 *data,
- unsigned int len)
+static int sha1_export(struct shash_desc *desc, void *out)
{
- struct s390_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
- unsigned int index;
- int ret;
-
- /* how much is already in the buffer? */
- index = sctx->count & 0x3f;
-
- sctx->count += len;
-
- if (index + len < SHA1_BLOCK_SIZE)
- goto store;
-
- /* process one stored block */
- if (index) {
- memcpy(sctx->buf + index, data, SHA1_BLOCK_SIZE - index);
- ret = crypt_s390_kimd(KIMD_SHA_1, sctx->state, sctx->buf,
- SHA1_BLOCK_SIZE);
- BUG_ON(ret != SHA1_BLOCK_SIZE);
- data += SHA1_BLOCK_SIZE - index;
- len -= SHA1_BLOCK_SIZE - index;
- }
-
- /* process as many blocks as possible */
- if (len >= SHA1_BLOCK_SIZE) {
- ret = crypt_s390_kimd(KIMD_SHA_1, sctx->state, data,
- len & ~(SHA1_BLOCK_SIZE - 1));
- BUG_ON(ret != (len & ~(SHA1_BLOCK_SIZE - 1)));
- data += ret;
- len -= ret;
- }
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+ struct sha1_state *octx = out;
-store:
- /* anything left? */
- if (len)
- memcpy(sctx->buf + index , data, len);
+ octx->count = sctx->count;
+ memcpy(octx->state, sctx->state, sizeof(octx->state));
+ memcpy(octx->buffer, sctx->buf, sizeof(octx->buffer));
+ return 0;
}
-/* Add padding and return the message digest. */
-static void sha1_final(struct crypto_tfm *tfm, u8 *out)
+static int sha1_import(struct shash_desc *desc, const void *in)
{
- struct s390_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
- u64 bits;
- unsigned int index, end;
- int ret;
-
- /* must perform manual padding */
- index = sctx->count & 0x3f;
- end = (index < 56) ? SHA1_BLOCK_SIZE : (2 * SHA1_BLOCK_SIZE);
-
- /* start pad with 1 */
- sctx->buf[index] = 0x80;
-
- /* pad with zeros */
- index++;
- memset(sctx->buf + index, 0x00, end - index - 8);
-
- /* append message length */
- bits = sctx->count * 8;
- memcpy(sctx->buf + end - 8, &bits, sizeof(bits));
-
- ret = crypt_s390_kimd(KIMD_SHA_1, sctx->state, sctx->buf, end);
- BUG_ON(ret != end);
-
- /* copy digest to out */
- memcpy(out, sctx->state, SHA1_DIGEST_SIZE);
-
- /* wipe context */
- memset(sctx, 0, sizeof *sctx);
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+ const struct sha1_state *ictx = in;
+
+ sctx->count = ictx->count;
+ memcpy(sctx->state, ictx->state, sizeof(ictx->state));
+ memcpy(sctx->buf, ictx->buffer, sizeof(ictx->buffer));
+ sctx->func = KIMD_SHA_1;
+ return 0;
}
-static struct crypto_alg alg = {
- .cra_name = "sha1",
- .cra_driver_name= "sha1-s390",
- .cra_priority = CRYPT_S390_PRIORITY,
- .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
- .cra_blocksize = SHA1_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct s390_sha1_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(alg.cra_list),
- .cra_u = { .digest = {
- .dia_digestsize = SHA1_DIGEST_SIZE,
- .dia_init = sha1_init,
- .dia_update = sha1_update,
- .dia_final = sha1_final } }
+static struct shash_alg alg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .init = sha1_init,
+ .update = s390_sha_update,
+ .final = s390_sha_final,
+ .export = sha1_export,
+ .import = sha1_import,
+ .descsize = sizeof(struct s390_sha_ctx),
+ .statesize = sizeof(struct sha1_state),
+ .base = {
+ .cra_name = "sha1",
+ .cra_driver_name= "sha1-s390",
+ .cra_priority = CRYPT_S390_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
};
-static int __init init(void)
+static int __init sha1_s390_init(void)
{
- if (!crypt_s390_func_available(KIMD_SHA_1))
+ if (!crypt_s390_func_available(KIMD_SHA_1, CRYPT_S390_MSA))
return -EOPNOTSUPP;
-
- return crypto_register_alg(&alg);
+ return crypto_register_shash(&alg);
}
-static void __exit fini(void)
+static void __exit sha1_s390_fini(void)
{
- crypto_unregister_alg(&alg);
+ crypto_unregister_shash(&alg);
}
-module_init(init);
-module_exit(fini);
+module_init(sha1_s390_init);
+module_exit(sha1_s390_fini);
MODULE_ALIAS("sha1");
-
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
diff --git a/arch/s390/crypto/sha256_s390.c b/arch/s390/crypto/sha256_s390.c
index ccf8633c4f6..9b853809a49 100644
--- a/arch/s390/crypto/sha256_s390.c
+++ b/arch/s390/crypto/sha256_s390.c
@@ -1,37 +1,29 @@
/*
* Cryptographic API.
*
- * s390 implementation of the SHA256 Secure Hash Algorithm.
+ * s390 implementation of the SHA256 and SHA224 Secure Hash Algorithm.
*
* s390 Version:
- * Copyright IBM Corp. 2005,2007
+ * Copyright IBM Corp. 2005, 2011
* Author(s): Jan Glauber (jang@de.ibm.com)
*
- * Derived from "crypto/sha256_generic.c"
- * and "arch/s390/crypto/sha1_s390.c"
- *
* 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/init.h>
#include <linux/module.h>
-#include <linux/crypto.h>
#include <crypto/sha.h>
#include "crypt_s390.h"
+#include "sha.h"
-struct s390_sha256_ctx {
- u64 count; /* message length */
- u32 state[8];
- u8 buf[2 * SHA256_BLOCK_SIZE];
-};
-
-static void sha256_init(struct crypto_tfm *tfm)
+static int sha256_init(struct shash_desc *desc)
{
- struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm);
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
sctx->state[0] = SHA256_H0;
sctx->state[1] = SHA256_H1;
@@ -42,114 +34,116 @@ static void sha256_init(struct crypto_tfm *tfm)
sctx->state[6] = SHA256_H6;
sctx->state[7] = SHA256_H7;
sctx->count = 0;
+ sctx->func = KIMD_SHA_256;
+
+ return 0;
}
-static void sha256_update(struct crypto_tfm *tfm, const u8 *data,
- unsigned int len)
+static int sha256_export(struct shash_desc *desc, void *out)
{
- struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm);
- unsigned int index;
- int ret;
-
- /* how much is already in the buffer? */
- index = sctx->count & 0x3f;
-
- sctx->count += len;
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+ struct sha256_state *octx = out;
- if ((index + len) < SHA256_BLOCK_SIZE)
- goto store;
-
- /* process one stored block */
- if (index) {
- memcpy(sctx->buf + index, data, SHA256_BLOCK_SIZE - index);
- ret = crypt_s390_kimd(KIMD_SHA_256, sctx->state, sctx->buf,
- SHA256_BLOCK_SIZE);
- BUG_ON(ret != SHA256_BLOCK_SIZE);
- data += SHA256_BLOCK_SIZE - index;
- len -= SHA256_BLOCK_SIZE - index;
- }
-
- /* process as many blocks as possible */
- if (len >= SHA256_BLOCK_SIZE) {
- ret = crypt_s390_kimd(KIMD_SHA_256, sctx->state, data,
- len & ~(SHA256_BLOCK_SIZE - 1));
- BUG_ON(ret != (len & ~(SHA256_BLOCK_SIZE - 1)));
- data += ret;
- len -= ret;
- }
-
-store:
- /* anything left? */
- if (len)
- memcpy(sctx->buf + index , data, len);
+ octx->count = sctx->count;
+ memcpy(octx->state, sctx->state, sizeof(octx->state));
+ memcpy(octx->buf, sctx->buf, sizeof(octx->buf));
+ return 0;
}
-/* Add padding and return the message digest */
-static void sha256_final(struct crypto_tfm *tfm, u8 *out)
+static int sha256_import(struct shash_desc *desc, const void *in)
{
- struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm);
- u64 bits;
- unsigned int index, end;
- int ret;
-
- /* must perform manual padding */
- index = sctx->count & 0x3f;
- end = (index < 56) ? SHA256_BLOCK_SIZE : (2 * SHA256_BLOCK_SIZE);
-
- /* start pad with 1 */
- sctx->buf[index] = 0x80;
-
- /* pad with zeros */
- index++;
- memset(sctx->buf + index, 0x00, end - index - 8);
-
- /* append message length */
- bits = sctx->count * 8;
- memcpy(sctx->buf + end - 8, &bits, sizeof(bits));
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+ const struct sha256_state *ictx = in;
+
+ sctx->count = ictx->count;
+ memcpy(sctx->state, ictx->state, sizeof(ictx->state));
+ memcpy(sctx->buf, ictx->buf, sizeof(ictx->buf));
+ sctx->func = KIMD_SHA_256;
+ return 0;
+}
- ret = crypt_s390_kimd(KIMD_SHA_256, sctx->state, sctx->buf, end);
- BUG_ON(ret != end);
+static struct shash_alg sha256_alg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .init = sha256_init,
+ .update = s390_sha_update,
+ .final = s390_sha_final,
+ .export = sha256_export,
+ .import = sha256_import,
+ .descsize = sizeof(struct s390_sha_ctx),
+ .statesize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha256",
+ .cra_driver_name= "sha256-s390",
+ .cra_priority = CRYPT_S390_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+};
- /* copy digest to out */
- memcpy(out, sctx->state, SHA256_DIGEST_SIZE);
+static int sha224_init(struct shash_desc *desc)
+{
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+
+ sctx->state[0] = SHA224_H0;
+ sctx->state[1] = SHA224_H1;
+ sctx->state[2] = SHA224_H2;
+ sctx->state[3] = SHA224_H3;
+ sctx->state[4] = SHA224_H4;
+ sctx->state[5] = SHA224_H5;
+ sctx->state[6] = SHA224_H6;
+ sctx->state[7] = SHA224_H7;
+ sctx->count = 0;
+ sctx->func = KIMD_SHA_256;
- /* wipe context */
- memset(sctx, 0, sizeof *sctx);
+ return 0;
}
-static struct crypto_alg alg = {
- .cra_name = "sha256",
- .cra_driver_name = "sha256-s390",
- .cra_priority = CRYPT_S390_PRIORITY,
- .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
- .cra_blocksize = SHA256_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct s390_sha256_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(alg.cra_list),
- .cra_u = { .digest = {
- .dia_digestsize = SHA256_DIGEST_SIZE,
- .dia_init = sha256_init,
- .dia_update = sha256_update,
- .dia_final = sha256_final } }
+static struct shash_alg sha224_alg = {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .init = sha224_init,
+ .update = s390_sha_update,
+ .final = s390_sha_final,
+ .export = sha256_export,
+ .import = sha256_import,
+ .descsize = sizeof(struct s390_sha_ctx),
+ .statesize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha224",
+ .cra_driver_name= "sha224-s390",
+ .cra_priority = CRYPT_S390_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
};
-static int init(void)
+static int __init sha256_s390_init(void)
{
- if (!crypt_s390_func_available(KIMD_SHA_256))
- return -EOPNOTSUPP;
+ int ret;
- return crypto_register_alg(&alg);
+ if (!crypt_s390_func_available(KIMD_SHA_256, CRYPT_S390_MSA))
+ return -EOPNOTSUPP;
+ ret = crypto_register_shash(&sha256_alg);
+ if (ret < 0)
+ goto out;
+ ret = crypto_register_shash(&sha224_alg);
+ if (ret < 0)
+ crypto_unregister_shash(&sha256_alg);
+out:
+ return ret;
}
-static void __exit fini(void)
+static void __exit sha256_s390_fini(void)
{
- crypto_unregister_alg(&alg);
+ crypto_unregister_shash(&sha224_alg);
+ crypto_unregister_shash(&sha256_alg);
}
-module_init(init);
-module_exit(fini);
+module_init(sha256_s390_init);
+module_exit(sha256_s390_fini);
MODULE_ALIAS("sha256");
-
+MODULE_ALIAS("sha224");
MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm");
+MODULE_DESCRIPTION("SHA256 and SHA224 Secure Hash Algorithm");
diff --git a/arch/s390/crypto/sha512_s390.c b/arch/s390/crypto/sha512_s390.c
new file mode 100644
index 00000000000..32a81383b69
--- /dev/null
+++ b/arch/s390/crypto/sha512_s390.c
@@ -0,0 +1,155 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 implementation of the SHA512 and SHA38 Secure Hash Algorithm.
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Jan Glauber (jang@de.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.
+ *
+ */
+#include <crypto/internal/hash.h>
+#include <crypto/sha.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "sha.h"
+#include "crypt_s390.h"
+
+static int sha512_init(struct shash_desc *desc)
+{
+ struct s390_sha_ctx *ctx = shash_desc_ctx(desc);
+
+ *(__u64 *)&ctx->state[0] = 0x6a09e667f3bcc908ULL;
+ *(__u64 *)&ctx->state[2] = 0xbb67ae8584caa73bULL;
+ *(__u64 *)&ctx->state[4] = 0x3c6ef372fe94f82bULL;
+ *(__u64 *)&ctx->state[6] = 0xa54ff53a5f1d36f1ULL;
+ *(__u64 *)&ctx->state[8] = 0x510e527fade682d1ULL;
+ *(__u64 *)&ctx->state[10] = 0x9b05688c2b3e6c1fULL;
+ *(__u64 *)&ctx->state[12] = 0x1f83d9abfb41bd6bULL;
+ *(__u64 *)&ctx->state[14] = 0x5be0cd19137e2179ULL;
+ ctx->count = 0;
+ ctx->func = KIMD_SHA_512;
+
+ return 0;
+}
+
+static int sha512_export(struct shash_desc *desc, void *out)
+{
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+ struct sha512_state *octx = out;
+
+ octx->count[0] = sctx->count;
+ octx->count[1] = 0;
+ memcpy(octx->state, sctx->state, sizeof(octx->state));
+ memcpy(octx->buf, sctx->buf, sizeof(octx->buf));
+ return 0;
+}
+
+static int sha512_import(struct shash_desc *desc, const void *in)
+{
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+ const struct sha512_state *ictx = in;
+
+ if (unlikely(ictx->count[1]))
+ return -ERANGE;
+ sctx->count = ictx->count[0];
+
+ memcpy(sctx->state, ictx->state, sizeof(ictx->state));
+ memcpy(sctx->buf, ictx->buf, sizeof(ictx->buf));
+ sctx->func = KIMD_SHA_512;
+ return 0;
+}
+
+static struct shash_alg sha512_alg = {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .init = sha512_init,
+ .update = s390_sha_update,
+ .final = s390_sha_final,
+ .export = sha512_export,
+ .import = sha512_import,
+ .descsize = sizeof(struct s390_sha_ctx),
+ .statesize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha512",
+ .cra_driver_name= "sha512-s390",
+ .cra_priority = CRYPT_S390_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+};
+
+MODULE_ALIAS("sha512");
+
+static int sha384_init(struct shash_desc *desc)
+{
+ struct s390_sha_ctx *ctx = shash_desc_ctx(desc);
+
+ *(__u64 *)&ctx->state[0] = 0xcbbb9d5dc1059ed8ULL;
+ *(__u64 *)&ctx->state[2] = 0x629a292a367cd507ULL;
+ *(__u64 *)&ctx->state[4] = 0x9159015a3070dd17ULL;
+ *(__u64 *)&ctx->state[6] = 0x152fecd8f70e5939ULL;
+ *(__u64 *)&ctx->state[8] = 0x67332667ffc00b31ULL;
+ *(__u64 *)&ctx->state[10] = 0x8eb44a8768581511ULL;
+ *(__u64 *)&ctx->state[12] = 0xdb0c2e0d64f98fa7ULL;
+ *(__u64 *)&ctx->state[14] = 0x47b5481dbefa4fa4ULL;
+ ctx->count = 0;
+ ctx->func = KIMD_SHA_512;
+
+ return 0;
+}
+
+static struct shash_alg sha384_alg = {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .init = sha384_init,
+ .update = s390_sha_update,
+ .final = s390_sha_final,
+ .export = sha512_export,
+ .import = sha512_import,
+ .descsize = sizeof(struct s390_sha_ctx),
+ .statesize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha384",
+ .cra_driver_name= "sha384-s390",
+ .cra_priority = CRYPT_S390_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_blocksize = SHA384_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct s390_sha_ctx),
+ .cra_module = THIS_MODULE,
+ }
+};
+
+MODULE_ALIAS("sha384");
+
+static int __init init(void)
+{
+ int ret;
+
+ if (!crypt_s390_func_available(KIMD_SHA_512, CRYPT_S390_MSA))
+ return -EOPNOTSUPP;
+ if ((ret = crypto_register_shash(&sha512_alg)) < 0)
+ goto out;
+ if ((ret = crypto_register_shash(&sha384_alg)) < 0)
+ crypto_unregister_shash(&sha512_alg);
+out:
+ return ret;
+}
+
+static void __exit fini(void)
+{
+ crypto_unregister_shash(&sha512_alg);
+ crypto_unregister_shash(&sha384_alg);
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SHA512 and SHA-384 Secure Hash Algorithm");
diff --git a/arch/s390/crypto/sha_common.c b/arch/s390/crypto/sha_common.c
new file mode 100644
index 00000000000..8620b0ec9c4
--- /dev/null
+++ b/arch/s390/crypto/sha_common.c
@@ -0,0 +1,106 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 generic implementation of the SHA Secure Hash Algorithms.
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Jan Glauber (jang@de.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.
+ *
+ */
+
+#include <crypto/internal/hash.h>
+#include <linux/module.h>
+#include "sha.h"
+#include "crypt_s390.h"
+
+int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len)
+{
+ struct s390_sha_ctx *ctx = shash_desc_ctx(desc);
+ unsigned int bsize = crypto_shash_blocksize(desc->tfm);
+ unsigned int index;
+ int ret;
+
+ /* how much is already in the buffer? */
+ index = ctx->count & (bsize - 1);
+ ctx->count += len;
+
+ if ((index + len) < bsize)
+ goto store;
+
+ /* process one stored block */
+ if (index) {
+ memcpy(ctx->buf + index, data, bsize - index);
+ ret = crypt_s390_kimd(ctx->func, ctx->state, ctx->buf, bsize);
+ if (ret != bsize)
+ return -EIO;
+ data += bsize - index;
+ len -= bsize - index;
+ index = 0;
+ }
+
+ /* process as many blocks as possible */
+ if (len >= bsize) {
+ ret = crypt_s390_kimd(ctx->func, ctx->state, data,
+ len & ~(bsize - 1));
+ if (ret != (len & ~(bsize - 1)))
+ return -EIO;
+ data += ret;
+ len -= ret;
+ }
+store:
+ if (len)
+ memcpy(ctx->buf + index , data, len);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(s390_sha_update);
+
+int s390_sha_final(struct shash_desc *desc, u8 *out)
+{
+ struct s390_sha_ctx *ctx = shash_desc_ctx(desc);
+ unsigned int bsize = crypto_shash_blocksize(desc->tfm);
+ u64 bits;
+ unsigned int index, end, plen;
+ int ret;
+
+ /* SHA-512 uses 128 bit padding length */
+ plen = (bsize > SHA256_BLOCK_SIZE) ? 16 : 8;
+
+ /* must perform manual padding */
+ index = ctx->count & (bsize - 1);
+ end = (index < bsize - plen) ? bsize : (2 * bsize);
+
+ /* start pad with 1 */
+ ctx->buf[index] = 0x80;
+ index++;
+
+ /* pad with zeros */
+ memset(ctx->buf + index, 0x00, end - index - 8);
+
+ /*
+ * Append message length. Well, SHA-512 wants a 128 bit length value,
+ * nevertheless we use u64, should be enough for now...
+ */
+ bits = ctx->count * 8;
+ memcpy(ctx->buf + end - 8, &bits, sizeof(bits));
+
+ ret = crypt_s390_kimd(ctx->func, ctx->state, ctx->buf, end);
+ if (ret != end)
+ return -EIO;
+
+ /* copy digest to out */
+ memcpy(out, ctx->state, crypto_shash_digestsize(desc->tfm));
+ /* wipe context */
+ memset(ctx, 0, sizeof *ctx);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(s390_sha_final);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("s390 SHA cipher common functions");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 22:39:24 +0000