crypto: wp512 - Switch to shash

This patch changes wp512, wp384 and wp256 to the new shash interface.

Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

2 files changed, 66 insertions, 57 deletions

diff --git a/crypto/Kconfig b/crypto/Kconfig
index a863d7e5f9e..bc29216aaad 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -394,7 +394,7 @@ config CRYPTO_TGR192
 
 config CRYPTO_WP512
         tristate "Whirlpool digest algorithms"
-        select CRYPTO_ALGAPI
+        select CRYPTO_HASH
         help
           Whirlpool hash algorithm 512, 384 and 256-bit hashes
 
diff --git a/crypto/wp512.c b/crypto/wp512.c
index bff28560d66..72342727368 100644
--- a/crypto/wp512.c
+++ b/crypto/wp512.c
@@ -19,11 +19,11 @@
  * (at your option) any later version.
  *
  */
+#include <crypto/internal/hash.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <asm/byteorder.h>
-#include <linux/crypto.h>
 #include <linux/types.h>
 
 #define WP512_DIGEST_SIZE 64
@@ -980,8 +980,8 @@ static void wp512_process_buffer(struct wp512_ctx *wctx) {
 
 }
 
-static void wp512_init(struct crypto_tfm *tfm) {
-        struct wp512_ctx *wctx = crypto_tfm_ctx(tfm);
+static int wp512_init(struct shash_desc *desc) {
+        struct wp512_ctx *wctx = shash_desc_ctx(desc);
         int i;
 
         memset(wctx->bitLength, 0, 32);
@@ -990,12 +990,14 @@ static void wp512_init(struct crypto_tfm *tfm) {
         for (i = 0; i < 8; i++) {
                 wctx->hash[i] = 0L;
         }
+
+        return 0;
 }
 
-static void wp512_update(struct crypto_tfm *tfm, const u8 *source,
+static int wp512_update(struct shash_desc *desc, const u8 *source,
                          unsigned int len)
 {
-        struct wp512_ctx *wctx = crypto_tfm_ctx(tfm);
+        struct wp512_ctx *wctx = shash_desc_ctx(desc);
         int sourcePos    = 0;
         unsigned int bits_len = len * 8; // convert to number of bits
         int sourceGap    = (8 - ((int)bits_len & 7)) & 7;
@@ -1051,11 +1053,12 @@ static void wp512_update(struct crypto_tfm *tfm, const u8 *source,
         wctx->bufferBits   = bufferBits;
         wctx->bufferPos    = bufferPos;
 
+        return 0;
 }
 
-static void wp512_final(struct crypto_tfm *tfm, u8 *out)
+static int wp512_final(struct shash_desc *desc, u8 *out)
 {
-        struct wp512_ctx *wctx = crypto_tfm_ctx(tfm);
+        struct wp512_ctx *wctx = shash_desc_ctx(desc);
         int i;
         u8 *buffer      = wctx->buffer;
         u8 *bitLength   = wctx->bitLength;
@@ -1084,89 +1087,95 @@ static void wp512_final(struct crypto_tfm *tfm, u8 *out)
                 digest[i] = cpu_to_be64(wctx->hash[i]);
         wctx->bufferBits   = bufferBits;
         wctx->bufferPos    = bufferPos;
+
+        return 0;
 }
 
-static void wp384_final(struct crypto_tfm *tfm, u8 *out)
+static int wp384_final(struct shash_desc *desc, u8 *out)
 {
         u8 D[64];
 
-        wp512_final(tfm, D);
+        wp512_final(desc, D);
         memcpy (out, D, WP384_DIGEST_SIZE);
         memset (D, 0, WP512_DIGEST_SIZE);
+
+        return 0;
 }
 
-static void wp256_final(struct crypto_tfm *tfm, u8 *out)
+static int wp256_final(struct shash_desc *desc, u8 *out)
 {
         u8 D[64];
 
-        wp512_final(tfm, D);
+        wp512_final(desc, D);
         memcpy (out, D, WP256_DIGEST_SIZE);
         memset (D, 0, WP512_DIGEST_SIZE);
+
+        return 0;
 }
 
-static struct crypto_alg wp512 = {
-        .cra_name       =       "wp512",
-        .cra_flags      =       CRYPTO_ALG_TYPE_DIGEST,
-        .cra_blocksize  =       WP512_BLOCK_SIZE,
-        .cra_ctxsize    =       sizeof(struct wp512_ctx),
-        .cra_module     =       THIS_MODULE,
-        .cra_list       =       LIST_HEAD_INIT(wp512.cra_list), 
-        .cra_u          =       { .digest = {
-        .dia_digestsize =       WP512_DIGEST_SIZE,
-        .dia_init       =       wp512_init,
-        .dia_update     =       wp512_update,
-        .dia_final      =       wp512_final } }
+static struct shash_alg wp512 = {
+        .digestsize     =       WP512_DIGEST_SIZE,
+        .init           =       wp512_init,
+        .update         =       wp512_update,
+        .final          =       wp512_final,
+        .descsize       =       sizeof(struct wp512_ctx),
+        .base           =       {
+                .cra_name       =       "wp512",
+                .cra_flags      =       CRYPTO_ALG_TYPE_SHASH,
+                .cra_blocksize  =       WP512_BLOCK_SIZE,
+                .cra_module     =       THIS_MODULE,
+        }
 };
 
-static struct crypto_alg wp384 = {
-        .cra_name       =       "wp384",
-        .cra_flags      =       CRYPTO_ALG_TYPE_DIGEST,
-        .cra_blocksize  =       WP512_BLOCK_SIZE,
-        .cra_ctxsize    =       sizeof(struct wp512_ctx),
-        .cra_module     =       THIS_MODULE,
-        .cra_list       =       LIST_HEAD_INIT(wp384.cra_list), 
-        .cra_u          =       { .digest = {
-        .dia_digestsize =       WP384_DIGEST_SIZE,
-        .dia_init       =       wp512_init,
-        .dia_update     =       wp512_update,
-        .dia_final      =       wp384_final } }
+static struct shash_alg wp384 = {
+        .digestsize     =       WP384_DIGEST_SIZE,
+        .init           =       wp512_init,
+        .update         =       wp512_update,
+        .final          =       wp384_final,
+        .descsize       =       sizeof(struct wp512_ctx),
+        .base           =       {
+                .cra_name       =       "wp384",
+                .cra_flags      =       CRYPTO_ALG_TYPE_SHASH,
+                .cra_blocksize  =       WP512_BLOCK_SIZE,
+                .cra_module     =       THIS_MODULE,
+        }
 };
 
-static struct crypto_alg wp256 = {
-        .cra_name       =       "wp256",
-        .cra_flags      =       CRYPTO_ALG_TYPE_DIGEST,
-        .cra_blocksize  =       WP512_BLOCK_SIZE,
-        .cra_ctxsize    =       sizeof(struct wp512_ctx),
-        .cra_module     =       THIS_MODULE,
-        .cra_list       =       LIST_HEAD_INIT(wp256.cra_list), 
-        .cra_u          =       { .digest = {
-        .dia_digestsize =       WP256_DIGEST_SIZE,
-        .dia_init       =       wp512_init,
-        .dia_update     =       wp512_update,
-        .dia_final      =       wp256_final } }
+static struct shash_alg wp256 = {
+        .digestsize     =       WP256_DIGEST_SIZE,
+        .init           =       wp512_init,
+        .update         =       wp512_update,
+        .final          =       wp256_final,
+        .descsize       =       sizeof(struct wp512_ctx),
+        .base           =       {
+                .cra_name       =       "wp256",
+                .cra_flags      =       CRYPTO_ALG_TYPE_SHASH,
+                .cra_blocksize  =       WP512_BLOCK_SIZE,
+                .cra_module     =       THIS_MODULE,
+        }
 };
 
 static int __init wp512_mod_init(void)
 {
         int ret = 0;
 
-        ret = crypto_register_alg(&wp512);
+        ret = crypto_register_shash(&wp512);
 
         if (ret < 0)
                 goto out;
 
-        ret = crypto_register_alg(&wp384);
+        ret = crypto_register_shash(&wp384);
         if (ret < 0)
         {
-                crypto_unregister_alg(&wp512);
+                crypto_unregister_shash(&wp512);
                 goto out;
         }
 
-        ret = crypto_register_alg(&wp256);
+        ret = crypto_register_shash(&wp256);
         if (ret < 0)
         {
-                crypto_unregister_alg(&wp512);
-                crypto_unregister_alg(&wp384);
+                crypto_unregister_shash(&wp512);
+                crypto_unregister_shash(&wp384);
         }
 out:
         return ret;
@@ -1174,9 +1183,9 @@ out:
 
 static void __exit wp512_mod_fini(void)
 {
-        crypto_unregister_alg(&wp512);
-        crypto_unregister_alg(&wp384);
-        crypto_unregister_alg(&wp256);
+        crypto_unregister_shash(&wp512);
+        crypto_unregister_shash(&wp384);
+        crypto_unregister_shash(&wp256);
 }
 
 MODULE_ALIAS("wp384");