crypto: tgr192 - Switch to shash

This patch changes tgr192, tgr160 and tgr128 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, 72 insertions, 65 deletions

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 3d04fa880e44..a863d7e5f9e8 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -381,7 +381,7 @@ config CRYPTO_SHA512
 
 config CRYPTO_TGR192
         tristate "Tiger digest algorithms"
-        select CRYPTO_ALGAPI
+        select CRYPTO_HASH
         help
           Tiger hash algorithm 192, 160 and 128-bit hashes
 
diff --git a/crypto/tgr192.c b/crypto/tgr192.c
index a92414f24beb..cbca4f208c9f 100644
--- a/crypto/tgr192.c
+++ b/crypto/tgr192.c
@@ -21,11 +21,11 @@
  * (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 TGR192_DIGEST_SIZE 24
@@ -495,24 +495,26 @@ static void tgr192_transform(struct tgr192_ctx *tctx, const u8 * data)
         tctx->c = c;
 }
 
-static void tgr192_init(struct crypto_tfm *tfm)
+static int tgr192_init(struct shash_desc *desc)
 {
-        struct tgr192_ctx *tctx = crypto_tfm_ctx(tfm);
+        struct tgr192_ctx *tctx = shash_desc_ctx(desc);
 
         tctx->a = 0x0123456789abcdefULL;
         tctx->b = 0xfedcba9876543210ULL;
         tctx->c = 0xf096a5b4c3b2e187ULL;
         tctx->nblocks = 0;
         tctx->count = 0;
+
+        return 0;
 }
 
 
 /* Update the message digest with the contents
  * of INBUF with length INLEN. */
-static void tgr192_update(struct crypto_tfm *tfm, const u8 *inbuf,
+static int tgr192_update(struct shash_desc *desc, const u8 *inbuf,
                           unsigned int len)
 {
-        struct tgr192_ctx *tctx = crypto_tfm_ctx(tfm);
+        struct tgr192_ctx *tctx = shash_desc_ctx(desc);
 
         if (tctx->count == 64) {        /* flush the buffer */
                 tgr192_transform(tctx, tctx->hash);
@@ -520,15 +522,15 @@ static void tgr192_update(struct crypto_tfm *tfm, const u8 *inbuf,
                 tctx->nblocks++;
         }
         if (!inbuf) {
-                return;
+                return 0;
         }
         if (tctx->count) {
                 for (; len && tctx->count < 64; len--) {
                         tctx->hash[tctx->count++] = *inbuf++;
                 }
-                tgr192_update(tfm, NULL, 0);
+                tgr192_update(desc, NULL, 0);
                 if (!len) {
-                        return;
+                        return 0;
                 }
 
         }
@@ -543,20 +545,22 @@ static void tgr192_update(struct crypto_tfm *tfm, const u8 *inbuf,
         for (; len && tctx->count < 64; len--) {
                 tctx->hash[tctx->count++] = *inbuf++;
         }
+
+        return 0;
 }
 
 
 
 /* The routine terminates the computation */
-static void tgr192_final(struct crypto_tfm *tfm, u8 * out)
+static int tgr192_final(struct shash_desc *desc, u8 * out)
 {
-        struct tgr192_ctx *tctx = crypto_tfm_ctx(tfm);
+        struct tgr192_ctx *tctx = shash_desc_ctx(desc);
         __be64 *dst = (__be64 *)out;
         __be64 *be64p;
         __le32 *le32p;
         u32 t, msb, lsb;
 
-        tgr192_update(tfm, NULL, 0); /* flush */ ;
+        tgr192_update(desc, NULL, 0); /* flush */ ;
 
         msb = 0;
         t = tctx->nblocks;
@@ -584,7 +588,7 @@ static void tgr192_final(struct crypto_tfm *tfm, u8 * out)
                 while (tctx->count < 64) {
                         tctx->hash[tctx->count++] = 0;
                 }
-                tgr192_update(tfm, NULL, 0); /* flush */ ;
+                tgr192_update(desc, NULL, 0); /* flush */ ;
                 memset(tctx->hash, 0, 56);    /* fill next block with zeroes */
         }
         /* append the 64 bit count */
@@ -598,91 +602,94 @@ static void tgr192_final(struct crypto_tfm *tfm, u8 * out)
         dst[0] = be64p[0] = cpu_to_be64(tctx->a);
         dst[1] = be64p[1] = cpu_to_be64(tctx->b);
         dst[2] = be64p[2] = cpu_to_be64(tctx->c);
+
+        return 0;
 }
 
-static void tgr160_final(struct crypto_tfm *tfm, u8 * out)
+static int tgr160_final(struct shash_desc *desc, u8 * out)
 {
         u8 D[64];
 
-        tgr192_final(tfm, D);
+        tgr192_final(desc, D);
         memcpy(out, D, TGR160_DIGEST_SIZE);
         memset(D, 0, TGR192_DIGEST_SIZE);
+
+        return 0;
 }
 
-static void tgr128_final(struct crypto_tfm *tfm, u8 * out)
+static int tgr128_final(struct shash_desc *desc, u8 * out)
 {
         u8 D[64];
 
-        tgr192_final(tfm, D);
+        tgr192_final(desc, D);
         memcpy(out, D, TGR128_DIGEST_SIZE);
         memset(D, 0, TGR192_DIGEST_SIZE);
+
+        return 0;
 }
 
-static struct crypto_alg tgr192 = {
-        .cra_name = "tgr192",
-        .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
-        .cra_blocksize = TGR192_BLOCK_SIZE,
-        .cra_ctxsize = sizeof(struct tgr192_ctx),
-        .cra_module = THIS_MODULE,
-        .cra_alignmask = 7,
-        .cra_list = LIST_HEAD_INIT(tgr192.cra_list),
-        .cra_u = {.digest = {
-                             .dia_digestsize = TGR192_DIGEST_SIZE,
-                             .dia_init = tgr192_init,
-                             .dia_update = tgr192_update,
-                             .dia_final = tgr192_final}}
+static struct shash_alg tgr192 = {
+        .digestsize     =       TGR192_DIGEST_SIZE,
+        .init           =       tgr192_init,
+        .update         =       tgr192_update,
+        .final          =       tgr192_final,
+        .descsize       =       sizeof(struct tgr192_ctx),
+        .base           =       {
+                .cra_name       =       "tgr192",
+                .cra_flags      =       CRYPTO_ALG_TYPE_SHASH,
+                .cra_blocksize  =       TGR192_BLOCK_SIZE,
+                .cra_module     =       THIS_MODULE,
+        }
 };
 
-static struct crypto_alg tgr160 = {
-        .cra_name = "tgr160",
-        .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
-        .cra_blocksize = TGR192_BLOCK_SIZE,
-        .cra_ctxsize = sizeof(struct tgr192_ctx),
-        .cra_module = THIS_MODULE,
-        .cra_alignmask = 7,
-        .cra_list = LIST_HEAD_INIT(tgr160.cra_list),
-        .cra_u = {.digest = {
-                             .dia_digestsize = TGR160_DIGEST_SIZE,
-                             .dia_init = tgr192_init,
-                             .dia_update = tgr192_update,
-                             .dia_final = tgr160_final}}
+static struct shash_alg tgr160 = {
+        .digestsize     =       TGR160_DIGEST_SIZE,
+        .init           =       tgr192_init,
+        .update         =       tgr192_update,
+        .final          =       tgr160_final,
+        .descsize       =       sizeof(struct tgr192_ctx),
+        .base           =       {
+                .cra_name       =       "tgr160",
+                .cra_flags      =       CRYPTO_ALG_TYPE_SHASH,
+                .cra_blocksize  =       TGR192_BLOCK_SIZE,
+                .cra_module     =       THIS_MODULE,
+        }
 };
 
-static struct crypto_alg tgr128 = {
-        .cra_name = "tgr128",
-        .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
-        .cra_blocksize = TGR192_BLOCK_SIZE,
-        .cra_ctxsize = sizeof(struct tgr192_ctx),
-        .cra_module = THIS_MODULE,
-        .cra_alignmask = 7,
-        .cra_list = LIST_HEAD_INIT(tgr128.cra_list),
-        .cra_u = {.digest = {
-                             .dia_digestsize = TGR128_DIGEST_SIZE,
-                             .dia_init = tgr192_init,
-                             .dia_update = tgr192_update,
-                             .dia_final = tgr128_final}}
+static struct shash_alg tgr128 = {
+        .digestsize     =       TGR128_DIGEST_SIZE,
+        .init           =       tgr192_init,
+        .update         =       tgr192_update,
+        .final          =       tgr128_final,
+        .descsize       =       sizeof(struct tgr192_ctx),
+        .base           =       {
+                .cra_name       =       "tgr128",
+                .cra_flags      =       CRYPTO_ALG_TYPE_SHASH,
+                .cra_blocksize  =       TGR192_BLOCK_SIZE,
+                .cra_module     =       THIS_MODULE,
+        }
 };
 
 static int __init tgr192_mod_init(void)
 {
         int ret = 0;
 
-        ret = crypto_register_alg(&tgr192);
+        ret = crypto_register_shash(&tgr192);
 
         if (ret < 0) {
                 goto out;
         }
 
-        ret = crypto_register_alg(&tgr160);
+        ret = crypto_register_shash(&tgr160);
         if (ret < 0) {
-                crypto_unregister_alg(&tgr192);
+                crypto_unregister_shash(&tgr192);
                 goto out;
         }
 
-        ret = crypto_register_alg(&tgr128);
+        ret = crypto_register_shash(&tgr128);
         if (ret < 0) {
-                crypto_unregister_alg(&tgr192);
-                crypto_unregister_alg(&tgr160);
+                crypto_unregister_shash(&tgr192);
+                crypto_unregister_shash(&tgr160);
         }
       out:
         return ret;
@@ -690,9 +697,9 @@ static int __init tgr192_mod_init(void)
 
 static void __exit tgr192_mod_fini(void)
 {
-        crypto_unregister_alg(&tgr192);
-        crypto_unregister_alg(&tgr160);
-        crypto_unregister_alg(&tgr128);
+        crypto_unregister_shash(&tgr192);
+        crypto_unregister_shash(&tgr160);
+        crypto_unregister_shash(&tgr128);
 }
 
 MODULE_ALIAS("tgr160");