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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/s390/crypto
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
downloadkernel-uprobes-b4b6116a13633898cf868f2f103c96a90c4c20f8.tar.gz
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/s390/crypto')
-rw-r--r--arch/s390/crypto/Makefile11
-rw-r--r--arch/s390/crypto/aes_s390.c937
-rw-r--r--arch/s390/crypto/crypt_s390.h436
-rw-r--r--arch/s390/crypto/crypto_des.h18
-rw-r--r--arch/s390/crypto/des_s390.c600
-rw-r--r--arch/s390/crypto/ghash_s390.c162
-rw-r--r--arch/s390/crypto/prng.c211
-rw-r--r--arch/s390/crypto/sha.h37
-rw-r--r--arch/s390/crypto/sha1_s390.c108
-rw-r--r--arch/s390/crypto/sha256_s390.c149
-rw-r--r--arch/s390/crypto/sha512_s390.c155
-rw-r--r--arch/s390/crypto/sha_common.c103
12 files changed, 2927 insertions, 0 deletions
diff --git a/arch/s390/crypto/Makefile b/arch/s390/crypto/Makefile
new file mode 100644
index 00000000000..7f0b7cda625
--- /dev/null
+++ b/arch/s390/crypto/Makefile
@@ -0,0 +1,11 @@
+#
+# Cryptographic API
+#
+
+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
new file mode 100644
index 00000000000..a9ce135893f
--- /dev/null
+++ b/arch/s390/crypto/aes_s390.c
@@ -0,0 +1,937 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 implementation of the AES Cipher Algorithm.
+ *
+ * s390 Version:
+ * Copyright IBM Corp. 2005,2007
+ * Author(s): Jan Glauber (jang@de.ibm.com)
+ * Sebastian Siewior (sebastian@breakpoint.cc> SW-Fallback
+ *
+ * Derived from "crypto/aes_generic.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.
+ *
+ */
+
+#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 "crypt_s390.h"
+
+#define AES_KEYLEN_128 1
+#define AES_KEYLEN_192 2
+#define AES_KEYLEN_256 4
+
+static u8 *ctrblk;
+static char keylen_flag;
+
+struct s390_aes_ctx {
+ u8 iv[AES_BLOCK_SIZE];
+ u8 key[AES_MAX_KEY_SIZE];
+ long enc;
+ long dec;
+ int key_len;
+ union {
+ struct crypto_blkcipher *blk;
+ struct crypto_cipher *cip;
+ } 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 xts_param[16];
+ struct pcc_param pcc;
+ 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
+ * required or a negative number in case the key size is not valid
+ */
+static int need_fallback(unsigned int key_len)
+{
+ switch (key_len) {
+ case 16:
+ if (!(keylen_flag & AES_KEYLEN_128))
+ return 1;
+ break;
+ case 24:
+ if (!(keylen_flag & AES_KEYLEN_192))
+ return 1;
+ break;
+ case 32:
+ if (!(keylen_flag & AES_KEYLEN_256))
+ return 1;
+ break;
+ default:
+ return -1;
+ break;
+ }
+ return 0;
+}
+
+static int setkey_fallback_cip(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+ int ret;
+
+ 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.cip->base.crt_flags &
+ CRYPTO_TFM_RES_MASK);
+ }
+ return ret;
+}
+
+static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+ u32 *flags = &tfm->crt_flags;
+ int ret;
+
+ ret = need_fallback(key_len);
+ if (ret < 0) {
+ *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ return -EINVAL;
+ }
+
+ sctx->key_len = key_len;
+ if (!ret) {
+ memcpy(sctx->key, in_key, key_len);
+ return 0;
+ }
+
+ return setkey_fallback_cip(tfm, in_key, key_len);
+}
+
+static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
+{
+ const struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+ if (unlikely(need_fallback(sctx->key_len))) {
+ crypto_cipher_encrypt_one(sctx->fallback.cip, out, in);
+ return;
+ }
+
+ switch (sctx->key_len) {
+ case 16:
+ crypt_s390_km(KM_AES_128_ENCRYPT, &sctx->key, out, in,
+ AES_BLOCK_SIZE);
+ break;
+ case 24:
+ crypt_s390_km(KM_AES_192_ENCRYPT, &sctx->key, out, in,
+ AES_BLOCK_SIZE);
+ break;
+ case 32:
+ crypt_s390_km(KM_AES_256_ENCRYPT, &sctx->key, out, in,
+ AES_BLOCK_SIZE);
+ break;
+ }
+}
+
+static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
+{
+ const struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+ if (unlikely(need_fallback(sctx->key_len))) {
+ crypto_cipher_decrypt_one(sctx->fallback.cip, out, in);
+ return;
+ }
+
+ switch (sctx->key_len) {
+ case 16:
+ crypt_s390_km(KM_AES_128_DECRYPT, &sctx->key, out, in,
+ AES_BLOCK_SIZE);
+ break;
+ case 24:
+ crypt_s390_km(KM_AES_192_DECRYPT, &sctx->key, out, in,
+ AES_BLOCK_SIZE);
+ break;
+ case 32:
+ crypt_s390_km(KM_AES_256_DECRYPT, &sctx->key, out, in,
+ AES_BLOCK_SIZE);
+ break;
+ }
+}
+
+static int fallback_init_cip(struct crypto_tfm *tfm)
+{
+ const char *name = tfm->__crt_alg->cra_name;
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+ sctx->fallback.cip = crypto_alloc_cipher(name, 0,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
+
+ if (IS_ERR(sctx->fallback.cip)) {
+ pr_err("Allocating AES fallback algorithm %s failed\n",
+ name);
+ return PTR_ERR(sctx->fallback.cip);
+ }
+
+ return 0;
+}
+
+static void fallback_exit_cip(struct crypto_tfm *tfm)
+{
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+ crypto_free_cipher(sctx->fallback.cip);
+ sctx->fallback.cip = NULL;
+}
+
+static struct crypto_alg aes_alg = {
+ .cra_name = "aes",
+ .cra_driver_name = "aes-s390",
+ .cra_priority = CRYPT_S390_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .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 = {
+ .cipher = {
+ .cia_min_keysize = AES_MIN_KEY_SIZE,
+ .cia_max_keysize = AES_MAX_KEY_SIZE,
+ .cia_setkey = aes_set_key,
+ .cia_encrypt = aes_encrypt,
+ .cia_decrypt = aes_decrypt,
+ }
+ }
+};
+
+static int setkey_fallback_blk(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int len)
+{
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+ unsigned int ret;
+
+ sctx->fallback.blk->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
+ sctx->fallback.blk->base.crt_flags |= (tfm->crt_flags &
+ CRYPTO_TFM_REQ_MASK);
+
+ ret = crypto_blkcipher_setkey(sctx->fallback.blk, key, len);
+ if (ret) {
+ tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
+ tfm->crt_flags |= (sctx->fallback.blk->base.crt_flags &
+ CRYPTO_TFM_RES_MASK);
+ }
+ return ret;
+}
+
+static int fallback_blk_dec(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ unsigned int ret;
+ struct crypto_blkcipher *tfm;
+ struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+
+ tfm = desc->tfm;
+ desc->tfm = sctx->fallback.blk;
+
+ ret = crypto_blkcipher_decrypt_iv(desc, dst, src, nbytes);
+
+ desc->tfm = tfm;
+ return ret;
+}
+
+static int fallback_blk_enc(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ unsigned int ret;
+ struct crypto_blkcipher *tfm;
+ struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
+
+ tfm = desc->tfm;
+ desc->tfm = sctx->fallback.blk;
+
+ ret = crypto_blkcipher_encrypt_iv(desc, dst, src, nbytes);
+
+ desc->tfm = tfm;
+ return ret;
+}
+
+static int ecb_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+ int ret;
+
+ ret = need_fallback(key_len);
+ if (ret > 0) {
+ sctx->key_len = key_len;
+ return setkey_fallback_blk(tfm, in_key, key_len);
+ }
+
+ switch (key_len) {
+ case 16:
+ sctx->enc = KM_AES_128_ENCRYPT;
+ sctx->dec = KM_AES_128_DECRYPT;
+ break;
+ case 24:
+ sctx->enc = KM_AES_192_ENCRYPT;
+ sctx->dec = KM_AES_192_DECRYPT;
+ break;
+ case 32:
+ sctx->enc = KM_AES_256_ENCRYPT;
+ sctx->dec = KM_AES_256_DECRYPT;
+ break;
+ }
+
+ return aes_set_key(tfm, in_key, key_len);
+}
+
+static int ecb_aes_crypt(struct blkcipher_desc *desc, long func, void *param,
+ struct blkcipher_walk *walk)
+{
+ int ret = blkcipher_walk_virt(desc, walk);
+ unsigned int nbytes;
+
+ while ((nbytes = walk->nbytes)) {
+ /* 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_km(func, param, out, in, n);
+ BUG_ON((ret < 0) || (ret != n));
+
+ nbytes &= AES_BLOCK_SIZE - 1;
+ ret = blkcipher_walk_done(desc, walk, nbytes);
+ }
+
+ return ret;
+}
+
+static int ecb_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;
+
+ if (unlikely(need_fallback(sctx->key_len)))
+ return fallback_blk_enc(desc, dst, src, nbytes);
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return ecb_aes_crypt(desc, sctx->enc, sctx->key, &walk);
+}
+
+static int ecb_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;
+
+ if (unlikely(need_fallback(sctx->key_len)))
+ return fallback_blk_dec(desc, dst, src, nbytes);
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return ecb_aes_crypt(desc, sctx->dec, sctx->key, &walk);
+}
+
+static int fallback_init_blk(struct crypto_tfm *tfm)
+{
+ const char *name = tfm->__crt_alg->cra_name;
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+ sctx->fallback.blk = crypto_alloc_blkcipher(name, 0,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
+
+ if (IS_ERR(sctx->fallback.blk)) {
+ pr_err("Allocating AES fallback algorithm %s failed\n",
+ name);
+ return PTR_ERR(sctx->fallback.blk);
+ }
+
+ return 0;
+}
+
+static void fallback_exit_blk(struct crypto_tfm *tfm)
+{
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+
+ crypto_free_blkcipher(sctx->fallback.blk);
+ sctx->fallback.blk = NULL;
+}
+
+static struct crypto_alg ecb_aes_alg = {
+ .cra_name = "ecb(aes)",
+ .cra_driver_name = "ecb-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_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 = {
+ .blkcipher = {
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = ecb_aes_set_key,
+ .encrypt = ecb_aes_encrypt,
+ .decrypt = ecb_aes_decrypt,
+ }
+ }
+};
+
+static int cbc_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
+ int ret;
+
+ ret = need_fallback(key_len);
+ if (ret > 0) {
+ sctx->key_len = key_len;
+ return setkey_fallback_blk(tfm, in_key, key_len);
+ }
+
+ switch (key_len) {
+ case 16:
+ sctx->enc = KMC_AES_128_ENCRYPT;
+ sctx->dec = KMC_AES_128_DECRYPT;
+ break;
+ case 24:
+ sctx->enc = KMC_AES_192_ENCRYPT;
+ sctx->dec = KMC_AES_192_DECRYPT;
+ break;
+ case 32:
+ sctx->enc = KMC_AES_256_ENCRYPT;
+ sctx->dec = KMC_AES_256_DECRYPT;
+ break;
+ }
+
+ return aes_set_key(tfm, in_key, key_len);
+}
+
+static int cbc_aes_crypt(struct blkcipher_desc *desc, long func, void *param,
+ struct blkcipher_walk *walk)
+{
+ int ret = blkcipher_walk_virt(desc, walk);
+ unsigned int nbytes = walk->nbytes;
+
+ if (!nbytes)
+ goto out;
+
+ memcpy(param, walk->iv, AES_BLOCK_SIZE);
+ 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));
+
+ nbytes &= AES_BLOCK_SIZE - 1;
+ ret = blkcipher_walk_done(desc, walk, nbytes);
+ } while ((nbytes = walk->nbytes));
+ memcpy(walk->iv, param, AES_BLOCK_SIZE);
+
+out:
+ return ret;
+}
+
+static int cbc_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;
+
+ if (unlikely(need_fallback(sctx->key_len)))
+ 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);
+}
+
+static int cbc_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;
+
+ if (unlikely(need_fallback(sctx->key_len)))
+ 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);
+}
+
+static struct crypto_alg cbc_aes_alg = {
+ .cra_name = "cbc(aes)",
+ .cra_driver_name = "cbc-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_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 = {
+ .blkcipher = {
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .setkey = cbc_aes_set_key,
+ .encrypt = cbc_aes_encrypt,
+ .decrypt = cbc_aes_decrypt,
+ }
+ }
+};
+
+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;
+ void *param;
+
+ if (!nbytes)
+ goto out;
+
+ memset(xts_ctx->pcc.block, 0, sizeof(xts_ctx->pcc.block));
+ memset(xts_ctx->pcc.bit, 0, sizeof(xts_ctx->pcc.bit));
+ memset(xts_ctx->pcc.xts, 0, sizeof(xts_ctx->pcc.xts));
+ memcpy(xts_ctx->pcc.tweak, walk->iv, sizeof(xts_ctx->pcc.tweak));
+ param = xts_ctx->pcc.key + offset;
+ ret = crypt_s390_pcc(func, param);
+ BUG_ON(ret < 0);
+
+ memcpy(xts_ctx->xts_param, xts_ctx->pcc.xts, 16);
+ param = xts_ctx->key + offset;
+ 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, param, out, in, n);
+ BUG_ON(ret < 0 || ret != n);
+
+ 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_list = LIST_HEAD_INIT(xts_aes_alg.cra_list),
+ .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 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 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 i, n, nbytes;
+ u8 buf[AES_BLOCK_SIZE];
+ u8 *out, *in;
+
+ if (!walk->nbytes)
+ return ret;
+
+ memcpy(ctrblk, 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) {
+ /* 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(ctrblk + i, ctrblk + i - AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE);
+ crypto_inc(ctrblk + i, AES_BLOCK_SIZE);
+ }
+ ret = crypt_s390_kmctr(func, sctx->key, out, in, n, ctrblk);
+ BUG_ON(ret < 0 || ret != n);
+ if (n > AES_BLOCK_SIZE)
+ memcpy(ctrblk, ctrblk + n - AES_BLOCK_SIZE,
+ AES_BLOCK_SIZE);
+ crypto_inc(ctrblk, AES_BLOCK_SIZE);
+ out += n;
+ in += n;
+ nbytes -= n;
+ }
+ ret = blkcipher_walk_done(desc, walk, nbytes);
+ }
+ /*
+ * 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, ctrblk);
+ BUG_ON(ret < 0 || ret != AES_BLOCK_SIZE);
+ memcpy(out, buf, nbytes);
+ crypto_inc(ctrblk, AES_BLOCK_SIZE);
+ ret = blkcipher_walk_done(desc, walk, 0);
+ }
+ memcpy(walk->iv, ctrblk, 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_list = LIST_HEAD_INIT(ctr_aes_alg.cra_list),
+ .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 __init aes_s390_init(void)
+{
+ int ret;
+
+ 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, CRYPT_S390_MSA))
+ keylen_flag |= AES_KEYLEN_192;
+ if (crypt_s390_func_available(KM_AES_256_ENCRYPT, CRYPT_S390_MSA))
+ keylen_flag |= AES_KEYLEN_256;
+
+ if (!keylen_flag)
+ return -EOPNOTSUPP;
+
+ /* z9 109 and z9 BC/EC only support 128 bit key length */
+ if (keylen_flag == AES_KEYLEN_128)
+ pr_info("AES hardware acceleration is only available for"
+ " 128-bit keys\n");
+
+ ret = crypto_register_alg(&aes_alg);
+ if (ret)
+ goto aes_err;
+
+ ret = crypto_register_alg(&ecb_aes_alg);
+ if (ret)
+ goto ecb_aes_err;
+
+ ret = crypto_register_alg(&cbc_aes_alg);
+ 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;
+ }
+
+ 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;
+ }
+ }
+
+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:
+ crypto_unregister_alg(&aes_alg);
+aes_err:
+ goto out;
+}
+
+static void __exit aes_s390_fini(void)
+{
+ crypto_unregister_alg(&ctr_aes_alg);
+ free_page((unsigned long) ctrblk);
+ 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_s390_init);
+module_exit(aes_s390_fini);
+
+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
new file mode 100644
index 00000000000..ffd1ac255f1
--- /dev/null
+++ b/arch/s390/crypto/crypt_s390.h
@@ -0,0 +1,436 @@
+/*
+ * Cryptographic API.
+ *
+ * Support for s390 cryptographic instructions.
+ *
+ * Copyright IBM Corp. 2003,2007
+ * Author(s): Thomas Spatzier
+ * Jan Glauber (jan.glauber@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_CRYPT_S390_H
+#define _CRYPTO_ARCH_S390_CRYPT_S390_H
+
+#include <asm/errno.h>
+
+#define CRYPT_S390_OP_MASK 0xFF00
+#define CRYPT_S390_FUNC_MASK 0x00FF
+
+#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_KMCTR = 0x0600
+};
+
+/*
+ * function codes for KM (CIPHER MESSAGE) instruction
+ * 0x80 is the decipher modifier bit
+ */
+enum crypt_s390_km_func {
+ KM_QUERY = CRYPT_S390_KM | 0x0,
+ KM_DEA_ENCRYPT = CRYPT_S390_KM | 0x1,
+ KM_DEA_DECRYPT = CRYPT_S390_KM | 0x1 | 0x80,
+ KM_TDEA_128_ENCRYPT = CRYPT_S390_KM | 0x2,
+ KM_TDEA_128_DECRYPT = CRYPT_S390_KM | 0x2 | 0x80,
+ KM_TDEA_192_ENCRYPT = CRYPT_S390_KM | 0x3,
+ KM_TDEA_192_DECRYPT = CRYPT_S390_KM | 0x3 | 0x80,
+ KM_AES_128_ENCRYPT = CRYPT_S390_KM | 0x12,
+ KM_AES_128_DECRYPT = CRYPT_S390_KM | 0x12 | 0x80,
+ KM_AES_192_ENCRYPT = CRYPT_S390_KM | 0x13,
+ 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,
+};
+
+/*
+ * function codes for KMC (CIPHER MESSAGE WITH CHAINING)
+ * instruction
+ */
+enum crypt_s390_kmc_func {
+ KMC_QUERY = CRYPT_S390_KMC | 0x0,
+ KMC_DEA_ENCRYPT = CRYPT_S390_KMC | 0x1,
+ KMC_DEA_DECRYPT = CRYPT_S390_KMC | 0x1 | 0x80,
+ KMC_TDEA_128_ENCRYPT = CRYPT_S390_KMC | 0x2,
+ KMC_TDEA_128_DECRYPT = CRYPT_S390_KMC | 0x2 | 0x80,
+ KMC_TDEA_192_ENCRYPT = CRYPT_S390_KMC | 0x3,
+ KMC_TDEA_192_DECRYPT = CRYPT_S390_KMC | 0x3 | 0x80,
+ KMC_AES_128_ENCRYPT = CRYPT_S390_KMC | 0x12,
+ KMC_AES_128_DECRYPT = CRYPT_S390_KMC | 0x12 | 0x80,
+ KMC_AES_192_ENCRYPT = CRYPT_S390_KMC | 0x13,
+ KMC_AES_192_DECRYPT = CRYPT_S390_KMC | 0x13 | 0x80,
+ KMC_AES_256_ENCRYPT = CRYPT_S390_KMC | 0x14,
+ KMC_AES_256_DECRYPT = CRYPT_S390_KMC | 0x14 | 0x80,
+ KMC_PRNG = CRYPT_S390_KMC | 0x43,
+};
+
+/*
+ * 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
+ */
+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,
+};
+
+/*
+ * function codes for KLMD (COMPUTE LAST MESSAGE DIGEST)
+ * instruction
+ */
+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,
+};
+
+/*
+ * function codes for KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
+ * instruction
+ */
+enum crypt_s390_kmac_func {
+ KMAC_QUERY = CRYPT_S390_KMAC | 0,
+ KMAC_DEA = CRYPT_S390_KMAC | 1,
+ KMAC_TDEA_128 = CRYPT_S390_KMAC | 2,
+ KMAC_TDEA_192 = CRYPT_S390_KMAC | 3
+};
+
+/**
+ * crypt_s390_km:
+ * @func: the function code passed to KM; see crypt_s390_km_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
+ *
+ * Executes the KM (CIPHER MESSAGE) 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_km(long func, void *param,
+ u8 *dest, const u8 *src, long src_len)
+{
+ 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;
+ int ret;
+
+ asm volatile(
+ "0: .insn rre,0xb92e0000,%3,%1 \n" /* KM 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)
+ : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
+ if (ret < 0)
+ return ret;
+ return (func & CRYPT_S390_FUNC_MASK) ? src_len - __src_len : __src_len;
+}
+
+/**
+ * crypt_s390_kmc:
+ * @func: the function code passed to KM; see crypt_s390_kmc_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
+ *
+ * Executes the KMC (CIPHER MESSAGE WITH CHAINING) 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_kmc(long func, void *param,
+ u8 *dest, const u8 *src, long src_len)
+{
+ 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;
+ int ret;
+
+ asm volatile(
+ "0: .insn rre,0xb92f0000,%3,%1 \n" /* KMC 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)
+ : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
+ if (ret < 0)
+ return ret;
+ return (func & CRYPT_S390_FUNC_MASK) ? src_len - __src_len : __src_len;
+}
+
+/**
+ * crypt_s390_kimd:
+ * @func: the function code passed to KM; see crypt_s390_kimd_func
+ * @param: address of parameter block; see POP for details on each func
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ *
+ * Executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) operation
+ * of the CPU.
+ *
+ * Returns -1 for failure, 0 for the query func, number of processed
+ * bytes for digest funcs
+ */
+static inline int crypt_s390_kimd(long func, void *param,
+ const u8 *src, long src_len)
+{
+ 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;
+ int ret;
+
+ asm volatile(
+ "0: .insn rre,0xb93e0000,%1,%1 \n" /* KIMD 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)
+ : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
+ if (ret < 0)
+ return ret;
+ return (func & CRYPT_S390_FUNC_MASK) ? src_len - __src_len : __src_len;
+}
+
+/**
+ * crypt_s390_klmd:
+ * @func: the function code passed to KM; see crypt_s390_klmd_func
+ * @param: address of parameter block; see POP for details on each func
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ *
+ * Executes the KLMD (COMPUTE LAST MESSAGE DIGEST) operation of the CPU.
+ *
+ * Returns -1 for failure, 0 for the query func, number of processed
+ * bytes for digest funcs
+ */
+static inline int crypt_s390_klmd(long func, void *param,
+ const u8 *src, long src_len)
+{
+ 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;
+ int ret;
+
+ asm volatile(
+ "0: .insn rre,0xb93f0000,%1,%1 \n" /* KLMD 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)
+ : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
+ if (ret < 0)
+ return ret;
+ return (func & CRYPT_S390_FUNC_MASK) ? src_len - __src_len : __src_len;
+}
+
+/**
+ * crypt_s390_kmac:
+ * @func: the function code passed to KM; see crypt_s390_klmd_func
+ * @param: address of parameter block; see POP for details on each func
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ *
+ * Executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) operation
+ * of the CPU.
+ *
+ * Returns -1 for failure, 0 for the query func, number of processed
+ * bytes for digest funcs
+ */
+static inline int crypt_s390_kmac(long func, void *param,
+ const u8 *src, long src_len)
+{
+ 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;
+ int ret;
+
+ asm volatile(
+ "0: .insn rre,0xb91e0000,%1,%1 \n" /* KLAC 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)
+ : "d" (__func), "a" (__param), "0" (-1) : "cc", "memory");
+ if (ret < 0)
+ return ret;
+ return (func & CRYPT_S390_FUNC_MASK) ? src_len - __src_len : __src_len;
+}
+
+/**
+ * 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
+ *
+ * Tests if a specific crypto function is implemented on the machine.
+ *
+ * Returns 1 if func available; 0 if func or op in general not available
+ */
+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);
+ break;
+ case CRYPT_S390_KMC:
+ ret = crypt_s390_kmc(KMC_QUERY, &status, NULL, NULL, 0);
+ break;
+ case CRYPT_S390_KIMD:
+ ret = crypt_s390_kimd(KIMD_QUERY, &status, NULL, 0);
+ break;
+ case CRYPT_S390_KLMD:
+ ret = crypt_s390_klmd(KLMD_QUERY, &status, NULL, 0);
+ break;
+ 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;
+ }
+ if (ret < 0)
+ return 0;
+ func &= CRYPT_S390_FUNC_MASK;
+ func &= 0x7f; /* mask modifier bit */
+ 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
new file mode 100644
index 00000000000..6210457ceeb
--- /dev/null
+++ b/arch/s390/crypto/crypto_des.h
@@ -0,0 +1,18 @@
+/*
+ * 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_s390.c b/arch/s390/crypto/des_s390.c
new file mode 100644
index 00000000000..a52bfd124d8
--- /dev/null
+++ b/arch/s390/crypto/des_s390.c
@@ -0,0 +1,600 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 implementation of the DES Cipher Algorithm.
+ *
+ * Copyright IBM Corp. 2003,2011
+ * Author(s): Thomas Spatzier
+ * Jan Glauber (jan.glauber@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 <linux/init.h>
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <crypto/algapi.h>
+#include <crypto/des.h>
+
+#include "crypt_s390.h"
+
+#define DES3_KEY_SIZE (3 * DES_KEY_SIZE)
+
+static u8 *ctrblk;
+
+struct s390_des_ctx {
+ u8 iv[DES_BLOCK_SIZE];
+ u8 key[DES3_KEY_SIZE];
+};
+
+static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
+ u32 *flags = &tfm->crt_flags;
+ u32 tmp[DES_EXPKEY_WORDS];
+
+ /* 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 s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ 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 s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypt_s390_km(KM_DEA_DECRYPT, ctx->key, out, in, DES_BLOCK_SIZE);
+}
+
+static struct crypto_alg des_alg = {
+ .cra_name = "des",
+ .cra_driver_name = "des-s390",
+ .cra_priority = CRYPT_S390_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .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,
+ .cia_max_keysize = DES_KEY_SIZE,
+ .cia_setkey = des_setkey,
+ .cia_encrypt = des_encrypt,
+ .cia_decrypt = des_decrypt,
+ }
+ }
+};
+
+static int ecb_desall_crypt(struct blkcipher_desc *desc, long func,
+ u8 *key, struct blkcipher_walk *walk)
+{
+ int ret = blkcipher_walk_virt(desc, walk);
+ unsigned int nbytes;
+
+ while ((nbytes = walk->nbytes)) {
+ /* 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_km(func, key, out, in, n);
+ BUG_ON((ret < 0) || (ret != n));
+
+ nbytes &= DES_BLOCK_SIZE - 1;
+ ret = blkcipher_walk_done(desc, walk, nbytes);
+ }
+
+ return ret;
+}
+
+static int cbc_desall_crypt(struct blkcipher_desc *desc, long func,
+ u8 *iv, struct blkcipher_walk *walk)
+{
+ int ret = blkcipher_walk_virt(desc, walk);
+ unsigned int nbytes = walk->nbytes;
+
+ if (!nbytes)
+ goto out;
+
+ memcpy(iv, walk->iv, DES_BLOCK_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, iv, out, in, n);
+ BUG_ON((ret < 0) || (ret != n));
+
+ nbytes &= DES_BLOCK_SIZE - 1;
+ ret = blkcipher_walk_done(desc, walk, nbytes);
+ } while ((nbytes = walk->nbytes));
+ memcpy(walk->iv, iv, DES_BLOCK_SIZE);
+
+out:
+ return ret;
+}
+
+static int ecb_des_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ 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, ctx->key, &walk);
+}
+
+static int ecb_des_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ 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, ctx->key, &walk);
+}
+
+static struct crypto_alg ecb_des_alg = {
+ .cra_name = "ecb(des)",
+ .cra_driver_name = "ecb-des-s390",
+ .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
+ .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_des_alg.cra_list),
+ .cra_u = {
+ .blkcipher = {
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .setkey = des_setkey,
+ .encrypt = ecb_des_encrypt,
+ .decrypt = ecb_des_decrypt,
+ }
+ }
+};
+
+static int cbc_des_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ 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_DEA_ENCRYPT, ctx->iv, &walk);
+}
+
+static int cbc_des_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ 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_DEA_DECRYPT, ctx->iv, &walk);
+}
+
+static struct crypto_alg cbc_des_alg = {
+ .cra_name = "cbc(des)",
+ .cra_driver_name = "cbc-des-s390",
+ .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
+ .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_des_alg.cra_list),
+ .cra_u = {
+ .blkcipher = {
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .ivsize = DES_BLOCK_SIZE,
+ .setkey = des_setkey,
+ .encrypt = cbc_des_encrypt,
+ .decrypt = cbc_des_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_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
+ u32 *flags = &tfm->crt_flags;
+
+ 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_REQ_WEAK_KEY)) {
+ *flags |= CRYPTO_TFM_RES_WEAK_KEY;
+ return -EINVAL;
+ }
+ memcpy(ctx->key, key, key_len);
+ return 0;
+}
+
+static void des3_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypt_s390_km(KM_TDEA_192_ENCRYPT, ctx->key, dst, src, DES_BLOCK_SIZE);
+}
+
+static void des3_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ struct s390_des_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypt_s390_km(KM_TDEA_192_DECRYPT, ctx->key, dst, src, DES_BLOCK_SIZE);
+}
+
+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 = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(des3_alg.cra_list),
+ .cra_u = {
+ .cipher = {
+ .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_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ 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, ctx->key, &walk);
+}
+
+static int ecb_des3_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ 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, ctx->key, &walk);
+}
+
+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 = 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_alg.cra_list),
+ .cra_u = {
+ .blkcipher = {
+ .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_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ 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, ctx->iv, &walk);
+}
+
+static int cbc_des3_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ 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, ctx->iv, &walk);
+}
+
+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 = 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_alg.cra_list),
+ .cra_u = {
+ .blkcipher = {
+ .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,
+ }
+ }
+};
+
+static int ctr_desall_crypt(struct blkcipher_desc *desc, long func,
+ struct s390_des_ctx *ctx, struct blkcipher_walk *walk)
+{
+ int ret = blkcipher_walk_virt_block(desc, walk, DES_BLOCK_SIZE);
+ unsigned int i, n, nbytes;
+ u8 buf[DES_BLOCK_SIZE];
+ u8 *out, *in;
+
+ memcpy(ctrblk, 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) {
+ /* 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(ctrblk + i, ctrblk + i - DES_BLOCK_SIZE,
+ DES_BLOCK_SIZE);
+ crypto_inc(ctrblk + i, DES_BLOCK_SIZE);
+ }
+ ret = crypt_s390_kmctr(func, ctx->key, out, in, n, ctrblk);
+ BUG_ON((ret < 0) || (ret != n));
+ if (n > DES_BLOCK_SIZE)
+ memcpy(ctrblk, ctrblk + n - DES_BLOCK_SIZE,
+ DES_BLOCK_SIZE);
+ crypto_inc(ctrblk, DES_BLOCK_SIZE);
+ out += n;
+ in += n;
+ nbytes -= n;
+ }
+ ret = blkcipher_walk_done(desc, walk, nbytes);
+ }
+
+ /* 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, ctrblk);
+ BUG_ON(ret < 0 || ret != DES_BLOCK_SIZE);
+ memcpy(out, buf, nbytes);
+ crypto_inc(ctrblk, DES_BLOCK_SIZE);
+ ret = blkcipher_walk_done(desc, walk, 0);
+ }
+ memcpy(walk->iv, ctrblk, DES_BLOCK_SIZE);
+ return ret;
+}
+
+static int ctr_des_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+ struct blkcipher_walk walk;
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return ctr_desall_crypt(desc, KMCTR_DEA_ENCRYPT, ctx, &walk);
+}
+
+static int ctr_des_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+ struct blkcipher_walk walk;
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return ctr_desall_crypt(desc, KMCTR_DEA_DECRYPT, ctx, &walk);
+}
+
+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 = 1,
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
+ .cra_type = &crypto_blkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(ctr_des_alg.cra_list),
+ .cra_u = {
+ .blkcipher = {
+ .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 ctr_des3_encrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+ struct blkcipher_walk walk;
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return ctr_desall_crypt(desc, KMCTR_TDEA_192_ENCRYPT, ctx, &walk);
+}
+
+static int ctr_des3_decrypt(struct blkcipher_desc *desc,
+ struct scatterlist *dst, struct scatterlist *src,
+ unsigned int nbytes)
+{
+ struct s390_des_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+ struct blkcipher_walk walk;
+
+ blkcipher_walk_init(&walk, dst, src, nbytes);
+ return ctr_desall_crypt(desc, KMCTR_TDEA_192_DECRYPT, ctx, &walk);
+}
+
+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 = 1,
+ .cra_ctxsize = sizeof(struct s390_des_ctx),
+ .cra_type = &crypto_blkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(ctr_des3_alg.cra_list),
+ .cra_u = {
+ .blkcipher = {
+ .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 des_s390_init(void)
+{
+ int ret;
+
+ 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);
+ if (ret)
+ goto des_err;
+ ret = crypto_register_alg(&ecb_des_alg);
+ if (ret)
+ goto ecb_des_err;
+ ret = crypto_register_alg(&cbc_des_alg);
+ if (ret)
+ goto cbc_des_err;
+ ret = crypto_register_alg(&des3_alg);
+ if (ret)
+ goto des3_err;
+ ret = crypto_register_alg(&ecb_des3_alg);
+ if (ret)
+ goto ecb_des3_err;
+ ret = crypto_register_alg(&cbc_des3_alg);
+ if (ret)
+ 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;
+
+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);
+ecb_des_err:
+ crypto_unregister_alg(&des_alg);
+des_err:
+ goto out;
+}
+
+static void __exit des_s390_exit(void)
+{
+ 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(des_s390_init);
+module_exit(des_s390_exit);
+
+MODULE_ALIAS("des");
+MODULE_ALIAS("des3_ede");
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
diff --git a/arch/s390/crypto/ghash_s390.c b/arch/s390/crypto/ghash_s390.c
new file mode 100644
index 00000000000..b1bd170f24b
--- /dev/null
+++ b/arch/s390/crypto/ghash_s390.c
@@ -0,0 +1,162 @@
+/*
+ * 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);
+ BUG_ON(ret != GHASH_BLOCK_SIZE);
+ }
+ }
+
+ n = srclen & ~(GHASH_BLOCK_SIZE - 1);
+ if (n) {
+ ret = crypt_s390_kimd(KIMD_GHASH, ctx, src, n);
+ BUG_ON(ret != n);
+ src += n;
+ srclen -= n;
+ }
+
+ if (srclen) {
+ dctx->bytes = GHASH_BLOCK_SIZE - srclen;
+ memcpy(buf, src, srclen);
+ }
+
+ return 0;
+}
+
+static void 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);
+ BUG_ON(ret != GHASH_BLOCK_SIZE);
+ }
+
+ dctx->bytes = 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);
+
+ ghash_flush(ctx, dctx);
+ memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE);
+
+ return 0;
+}
+
+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,
+ .cra_list = LIST_HEAD_INIT(ghash_alg.base.cra_list),
+ },
+};
+
+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
new file mode 100644
index 00000000000..0808fbf0f7d
--- /dev/null
+++ b/arch/s390/crypto/prng.c
@@ -0,0 +1,211 @@
+/*
+ * Copyright IBM Corp. 2006,2007
+ * Author(s): Jan Glauber <jan.glauber@de.ibm.com>
+ * Driver for the s390 pseudo random number generator
+ */
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/random.h>
+#include <linux/slab.h>
+#include <asm/debug.h>
+#include <asm/uaccess.h>
+
+#include "crypt_s390.h"
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jan Glauber <jan.glauber@de.ibm.com>");
+MODULE_DESCRIPTION("s390 PRNG interface");
+
+static int prng_chunk_size = 256;
+module_param(prng_chunk_size, int, S_IRUSR | S_IRGRP | S_IROTH);
+MODULE_PARM_DESC(prng_chunk_size, "PRNG read chunk size in bytes");
+
+static int prng_entropy_limit = 4096;
+module_param(prng_entropy_limit, int, S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR);
+MODULE_PARM_DESC(prng_entropy_limit,
+ "PRNG add entropy after that much bytes were produced");
+
+/*
+ * Any one who considers arithmetical methods of producing random digits is,
+ * of course, in a state of sin. -- John von Neumann
+ */
+
+struct s390_prng_data {
+ unsigned long count; /* how many bytes were produced */
+ char *buf;
+};
+
+static struct s390_prng_data *p;
+
+/* copied from libica, use a non-zero initial parameter block */
+static unsigned char parm_block[32] = {
+0x0F,0x2B,0x8E,0x63,0x8C,0x8E,0xD2,0x52,0x64,0xB7,0xA0,0x7B,0x75,0x28,0xB8,0xF4,
+0x75,0x5F,0xD2,0xA6,0x8D,0x97,0x11,0xFF,0x49,0xD8,0x23,0xF3,0x7E,0x21,0xEC,0xA0,
+};
+
+static int prng_open(struct inode *inode, struct file *file)
+{
+ return nonseekable_open(inode, file);
+}
+
+static void prng_add_entropy(void)
+{
+ __u64 entropy[4];
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < 16; i++) {
+ ret = crypt_s390_kmc(KMC_PRNG, parm_block, (char *)entropy,
+ (char *)entropy, sizeof(entropy));
+ BUG_ON(ret < 0 || ret != sizeof(entropy));
+ memcpy(parm_block, entropy, sizeof(entropy));
+ }
+}
+
+static void prng_seed(int nbytes)
+{
+ char buf[16];
+ int i = 0;
+
+ BUG_ON(nbytes > 16);
+ get_random_bytes(buf, nbytes);
+
+ /* Add the entropy */
+ while (nbytes >= 8) {
+ *((__u64 *)parm_block) ^= *((__u64 *)(buf+i));
+ prng_add_entropy();
+ i += 8;
+ nbytes -= 8;
+ }
+ prng_add_entropy();
+}
+
+static ssize_t prng_read(struct file *file, char __user *ubuf, size_t nbytes,
+ loff_t *ppos)
+{
+ int chunk, n;
+ int ret = 0;
+ int tmp;
+
+ /* nbytes can be arbitrary length, we split it into chunks */
+ while (nbytes) {
+ /* same as in extract_entropy_user in random.c */
+ if (need_resched()) {
+ if (signal_pending(current)) {
+ if (ret == 0)
+ ret = -ERESTARTSYS;
+ break;
+ }
+ schedule();
+ }
+
+ /*
+ * we lose some random bytes if an attacker issues
+ * reads < 8 bytes, but we don't care
+ */
+ chunk = min_t(int, nbytes, prng_chunk_size);
+
+ /* PRNG only likes multiples of 8 bytes */
+ n = (chunk + 7) & -8;
+
+ if (p->count > prng_entropy_limit)
+ prng_seed(8);
+
+ /* if the CPU supports PRNG stckf is present too */
+ asm volatile(".insn s,0xb27c0000,%0"
+ : "=m" (*((unsigned long long *)p->buf)) : : "cc");
+
+ /*
+ * Beside the STCKF the input for the TDES-EDE is the output
+ * of the last operation. We differ here from X9.17 since we
+ * only store one timestamp into the buffer. Padding the whole
+ * buffer with timestamps does not improve security, since
+ * successive stckf have nearly constant offsets.
+ * If an attacker knows the first timestamp it would be
+ * trivial to guess the additional values. One timestamp
+ * is therefore enough and still guarantees unique input values.
+ *
+ * Note: you can still get strict X9.17 conformity by setting
+ * prng_chunk_size to 8 bytes.
+ */
+ tmp = crypt_s390_kmc(KMC_PRNG, parm_block, p->buf, p->buf, n);
+ BUG_ON((tmp < 0) || (tmp != n));
+
+ p->count += n;
+
+ if (copy_to_user(ubuf, p->buf, chunk))
+ return -EFAULT;
+
+ nbytes -= chunk;
+ ret += chunk;
+ ubuf += chunk;
+ }
+ return ret;
+}
+
+static const struct file_operations prng_fops = {
+ .owner = THIS_MODULE,
+ .open = &prng_open,
+ .release = NULL,
+ .read = &prng_read,
+ .llseek = noop_llseek,
+};
+
+static struct miscdevice prng_dev = {
+ .name = "prandom",
+ .minor = MISC_DYNAMIC_MINOR,
+ .fops = &prng_fops,
+};
+
+static int __init prng_init(void)
+{
+ int ret;
+
+ /* check if the CPU has a PRNG */
+ if (!crypt_s390_func_available(KMC_PRNG, CRYPT_S390_MSA))
+ return -EOPNOTSUPP;
+
+ if (prng_chunk_size < 8)
+ return -EINVAL;
+
+ p = kmalloc(sizeof(struct s390_prng_data), GFP_KERNEL);
+ if (!p)
+ return -ENOMEM;
+ p->count = 0;
+
+ p->buf = kmalloc(prng_chunk_size, GFP_KERNEL);
+ if (!p->buf) {
+ ret = -ENOMEM;
+ goto out_free;
+ }
+
+ /* initialize the PRNG, add 128 bits of entropy */
+ prng_seed(16);
+
+ ret = misc_register(&prng_dev);
+ if (ret)
+ goto out_buf;
+ return 0;
+
+out_buf:
+ kfree(p->buf);
+out_free:
+ kfree(p);
+ return ret;
+}
+
+static void __exit prng_exit(void)
+{
+ /* wipe me */
+ kzfree(p->buf);
+ kfree(p);
+
+ misc_deregister(&prng_dev);
+}
+
+module_init(prng_init);
+module_exit(prng_exit);
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
new file mode 100644
index 00000000000..e9868c6e0a0
--- /dev/null
+++ b/arch/s390/crypto/sha1_s390.c
@@ -0,0 +1,108 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 implementation of the SHA1 Secure Hash Algorithm.
+ *
+ * Derived from cryptoapi implementation, adapted for in-place
+ * scatterlist interface. Originally based on the public domain
+ * implementation written by Steve Reid.
+ *
+ * s390 Version:
+ * Copyright IBM Corp. 2003,2007
+ * Author(s): Thomas Spatzier
+ * Jan Glauber (jan.glauber@de.ibm.com)
+ *
+ * Derived from "crypto/sha1_generic.c"
+ * Copyright (c) Alan Smithee.
+ * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
+ * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+#include <crypto/internal/hash.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <crypto/sha.h>
+
+#include "crypt_s390.h"
+#include "sha.h"
+
+static int sha1_init(struct shash_desc *desc)
+{
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+
+ sctx->state[0] = SHA1_H0;
+ sctx->state[1] = SHA1_H1;
+ sctx->state[2] = SHA1_H2;
+ sctx->state[3] = SHA1_H3;
+ sctx->state[4] = SHA1_H4;
+ sctx->count = 0;
+ sctx->func = KIMD_SHA_1;
+
+ return 0;
+}
+
+static int sha1_export(struct shash_desc *desc, void *out)
+{
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+ struct sha1_state *octx = out;
+
+ octx->count = sctx->count;
+ memcpy(octx->state, sctx->state, sizeof(octx->state));
+ memcpy(octx->buffer, sctx->buf, sizeof(octx->buffer));
+ return 0;
+}
+
+static int sha1_import(struct shash_desc *desc, const void *in)
+{
+ 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 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 sha1_s390_init(void)
+{
+ if (!crypt_s390_func_available(KIMD_SHA_1, CRYPT_S390_MSA))
+ return -EOPNOTSUPP;
+ return crypto_register_shash(&alg);
+}
+
+static void __exit sha1_s390_fini(void)
+{
+ crypto_unregister_shash(&alg);
+}
+
+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
new file mode 100644
index 00000000000..0317a3547cb
--- /dev/null
+++ b/arch/s390/crypto/sha256_s390.c
@@ -0,0 +1,149 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 implementation of the SHA256 and SHA224 Secure Hash Algorithm.
+ *
+ * s390 Version:
+ * Copyright IBM Corp. 2005,2011
+ * 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/init.h>
+#include <linux/module.h>
+#include <crypto/sha.h>
+
+#include "crypt_s390.h"
+#include "sha.h"
+
+static int sha256_init(struct shash_desc *desc)
+{
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+
+ sctx->state[0] = SHA256_H0;
+ sctx->state[1] = SHA256_H1;
+ sctx->state[2] = SHA256_H2;
+ sctx->state[3] = SHA256_H3;
+ sctx->state[4] = SHA256_H4;
+ sctx->state[5] = SHA256_H5;
+ sctx->state[6] = SHA256_H6;
+ sctx->state[7] = SHA256_H7;
+ sctx->count = 0;
+ sctx->func = KIMD_SHA_256;
+
+ return 0;
+}
+
+static int sha256_export(struct shash_desc *desc, void *out)
+{
+ struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
+ struct sha256_state *octx = out;
+
+ octx->count = sctx->count;
+ memcpy(octx->state, sctx->state, sizeof(octx->state));
+ memcpy(octx->buf, sctx->buf, sizeof(octx->buf));
+ return 0;
+}
+
+static int sha256_import(struct shash_desc *desc, const void *in)
+{
+ 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;
+}
+
+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,
+ }
+};
+
+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;
+
+ return 0;
+}
+
+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 sha256_s390_init(void)
+{
+ int ret;
+
+ 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 sha256_s390_fini(void)
+{
+ crypto_unregister_shash(&sha224_alg);
+ crypto_unregister_shash(&sha256_alg);
+}
+
+module_init(sha256_s390_init);
+module_exit(sha256_s390_fini);
+
+MODULE_ALIAS("sha256");
+MODULE_ALIAS("sha224");
+MODULE_LICENSE("GPL");
+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..bd37d09b9d3
--- /dev/null
+++ b/arch/s390/crypto/sha_common.c
@@ -0,0 +1,103 @@
+/*
+ * 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);
+ BUG_ON(ret != bsize);
+ 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));
+ BUG_ON(ret != (len & ~(bsize - 1)));
+ 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);
+ BUG_ON(ret != end);
+
+ /* 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");