[GFS2] Fix up merge of Linus' kernel into GFS2
[pandora-kernel.git] / arch / s390 / crypto / des_s390.c
index a38bb2a..2aba048 100644 (file)
  * (at your option) any later version.
  *
  */
+
+#include <crypto/algapi.h>
 #include <linux/init.h>
 #include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <asm/scatterlist.h>
-#include <linux/crypto.h>
+
 #include "crypt_s390.h"
 #include "crypto_des.h"
 
@@ -46,53 +45,189 @@ struct crypt_s390_des3_192_ctx {
        u8 key[DES3_192_KEY_SIZE];
 };
 
-static int
-des_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
+static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
+                     unsigned int keylen)
 {
-       struct crypt_s390_des_ctx *dctx;
+       struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
+       u32 *flags = &tfm->crt_flags;
        int ret;
 
-       dctx = ctx;
-       //test if key is valid (not a weak key)
+       /* test if key is valid (not a weak key) */
        ret = crypto_des_check_key(key, keylen, flags);
-       if (ret == 0){
+       if (ret == 0)
                memcpy(dctx->key, key, keylen);
-       }
        return ret;
 }
 
-
-static void
-des_encrypt(void *ctx, u8 *dst, const u8 *src)
+static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
 {
-       struct crypt_s390_des_ctx *dctx;
+       struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
 
-       dctx = ctx;
-       crypt_s390_km(KM_DEA_ENCRYPT, dctx->key, dst, src, DES_BLOCK_SIZE);
+       crypt_s390_km(KM_DEA_ENCRYPT, dctx->key, out, in, DES_BLOCK_SIZE);
 }
 
-static void
-des_decrypt(void *ctx, u8 *dst, const u8 *src)
+static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
 {
-       struct crypt_s390_des_ctx *dctx;
+       struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
 
-       dctx = ctx;
-       crypt_s390_km(KM_DEA_DECRYPT, dctx->key, dst, src, DES_BLOCK_SIZE);
+       crypt_s390_km(KM_DEA_DECRYPT, dctx->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 crypt_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 } }
+       .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,
+                           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 & ~(DES_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 &= DES_BLOCK_SIZE - 1;
+               ret = blkcipher_walk_done(desc, walk, nbytes);
+       }
+
+       return ret;
+}
+
+static int cbc_desall_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, 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, param, 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, param, 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 crypt_s390_des_ctx *sctx = 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);
+}
+
+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 blkcipher_walk walk;
+
+       blkcipher_walk_init(&walk, dst, src, nbytes);
+       return ecb_desall_crypt(desc, KM_DEA_DECRYPT, sctx->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 crypt_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 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);
+}
+
+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);
+}
+
+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 crypt_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,
+               }
+       }
 };
 
 /*
@@ -107,20 +242,19 @@ static struct crypto_alg des_alg = {
  *   Implementers MUST reject keys that exhibit this property.
  *
  */
-static int
-des3_128_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
+static int des3_128_setkey(struct crypto_tfm *tfm, const u8 *key,
+                          unsigned int keylen)
 {
        int i, ret;
-       struct crypt_s390_des3_128_ctx *dctx;
-       const u8* temp_key = key;
+       struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
+       const u8 *temp_key = key;
+       u32 *flags = &tfm->crt_flags;
 
-       dctx = ctx;
        if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) {
-
                *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
                return -EINVAL;
        }
-       for (i = 0; i < 2; i++, temp_key += DES_KEY_SIZE) {
+       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;
@@ -129,39 +263,129 @@ des3_128_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
        return 0;
 }
 
-static void
-des3_128_encrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_128_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-       struct crypt_s390_des3_128_ctx *dctx;
+       struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
 
-       dctx = ctx;
        crypt_s390_km(KM_TDEA_128_ENCRYPT, dctx->key, dst, (void*)src,
-                       DES3_128_BLOCK_SIZE);
+                     DES3_128_BLOCK_SIZE);
 }
 
-static void
-des3_128_decrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_128_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-       struct crypt_s390_des3_128_ctx *dctx;
+       struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
 
-       dctx = ctx;
        crypt_s390_km(KM_TDEA_128_DECRYPT, dctx->key, dst, (void*)src,
-                       DES3_128_BLOCK_SIZE);
+                     DES3_128_BLOCK_SIZE);
 }
 
 static struct crypto_alg des3_128_alg = {
        .cra_name               =       "des3_ede128",
+       .cra_driver_name        =       "des3_ede128-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_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 } }
+       .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,
+               }
+       }
+};
+
+static int ecb_des3_128_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 ecb_desall_crypt(desc, KM_TDEA_128_ENCRYPT, sctx->key, &walk);
+}
+
+static int ecb_des3_128_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 ecb_desall_crypt(desc, KM_TDEA_128_DECRYPT, sctx->key, &walk);
+}
+
+static struct crypto_alg ecb_des3_128_alg = {
+       .cra_name               =       "ecb(des3_ede128)",
+       .cra_driver_name        =       "ecb-des3_ede128-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_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,
+               }
+       }
+};
+
+static int cbc_des3_128_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);
+}
+
+static int cbc_des3_128_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);
+}
+
+static struct crypto_alg cbc_des3_128_alg = {
+       .cra_name               =       "cbc(des3_ede128)",
+       .cra_driver_name        =       "cbc-des3_ede128-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_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,
+               }
+       }
 };
 
 /*
@@ -177,100 +401,227 @@ static struct crypto_alg des3_128_alg = {
  *   property.
  *
  */
-static int
-des3_192_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags)
+static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key,
+                          unsigned int keylen)
 {
        int i, ret;
-       struct crypt_s390_des3_192_ctx *dctx;
-       const u8* temp_key;
+       struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
+       const u8 *temp_key = key;
+       u32 *flags = &tfm->crt_flags;
 
-       dctx = ctx;
-       temp_key = key;
        if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
            memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
-                                               DES_KEY_SIZE))) {
+                  DES_KEY_SIZE))) {
 
                *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
                return -EINVAL;
        }
        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){
+               if (ret < 0)
                        return ret;
-               }
        }
        memcpy(dctx->key, key, keylen);
        return 0;
 }
 
-static void
-des3_192_encrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-       struct crypt_s390_des3_192_ctx *dctx;
+       struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
 
-       dctx = ctx;
        crypt_s390_km(KM_TDEA_192_ENCRYPT, dctx->key, dst, (void*)src,
-                       DES3_192_BLOCK_SIZE);
+                     DES3_192_BLOCK_SIZE);
 }
 
-static void
-des3_192_decrypt(void *ctx, u8 *dst, const u8 *src)
+static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
-       struct crypt_s390_des3_192_ctx *dctx;
+       struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
 
-       dctx = ctx;
        crypt_s390_km(KM_TDEA_192_DECRYPT, dctx->key, dst, (void*)src,
-                       DES3_192_BLOCK_SIZE);
+                     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 } }
+       .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,
+               }
+       }
 };
 
+static int ecb_des3_192_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 blkcipher_walk walk;
 
+       blkcipher_walk_init(&walk, dst, src, nbytes);
+       return ecb_desall_crypt(desc, KM_TDEA_192_ENCRYPT, sctx->key, &walk);
+}
 
-static int
-init(void)
+static int ecb_des3_192_decrypt(struct blkcipher_desc *desc,
+                               struct scatterlist *dst,
+                               struct scatterlist *src, unsigned int nbytes)
 {
-       int ret;
+       struct crypt_s390_des3_192_ctx *sctx = 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);
+}
+
+static struct crypto_alg ecb_des3_192_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_192_BLOCK_SIZE,
+       .cra_ctxsize            =       sizeof(struct crypt_s390_des3_192_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,
+               }
+       }
+};
+
+static int cbc_des3_192_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 blkcipher_walk walk;
+
+       blkcipher_walk_init(&walk, dst, src, nbytes);
+       return cbc_desall_crypt(desc, KMC_TDEA_192_ENCRYPT, sctx->iv, &walk);
+}
+
+static int cbc_des3_192_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 blkcipher_walk walk;
+
+       blkcipher_walk_init(&walk, dst, src, nbytes);
+       return cbc_desall_crypt(desc, KMC_TDEA_192_DECRYPT, sctx->iv, &walk);
+}
+
+static struct crypto_alg cbc_des3_192_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_192_BLOCK_SIZE,
+       .cra_ctxsize            =       sizeof(struct crypt_s390_des3_192_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,
+               }
+       }
+};
+
+static int init(void)
+{
+       int ret = 0;
 
        if (!crypt_s390_func_available(KM_DEA_ENCRYPT) ||
            !crypt_s390_func_available(KM_TDEA_128_ENCRYPT) ||
-           !crypt_s390_func_available(KM_TDEA_192_ENCRYPT)){
+           !crypt_s390_func_available(KM_TDEA_192_ENCRYPT))
                return -ENOSYS;
-       }
 
-       ret = 0;
-       ret |= (crypto_register_alg(&des_alg) == 0)? 0:1;
-       ret |= (crypto_register_alg(&des3_128_alg) == 0)? 0:2;
-       ret |= (crypto_register_alg(&des3_192_alg) == 0)? 0:4;
-       if (ret){
-               crypto_unregister_alg(&des3_192_alg);
-               crypto_unregister_alg(&des3_128_alg);
-               crypto_unregister_alg(&des_alg);
-               return -EEXIST;
-       }
+       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_128_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);
+       if (ret)
+               goto des3_192_err;
+       ret = crypto_register_alg(&ecb_des3_192_alg);
+       if (ret)
+               goto ecb_des3_192_err;
+       ret = crypto_register_alg(&cbc_des3_192_alg);
+       if (ret)
+               goto cbc_des3_192_err;
+
+out:
+       return ret;
 
-       printk(KERN_INFO "crypt_s390: des_s390 loaded.\n");
-       return 0;
+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:
+       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
-fini(void)
+static void __exit fini(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);
+       crypto_unregister_alg(&cbc_des_alg);
+       crypto_unregister_alg(&ecb_des_alg);
        crypto_unregister_alg(&des_alg);
 }