X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=crypto%2Fmd5.c;h=30efc7dad89173e86fcf65b6ac7c20d858abfeb2;hb=218ce7351413b8287a80fab1d7b94906a5559f01;hp=93d18e8b3d53d708e9ea23460eab231a18904796;hpb=6c2bb98bc33ae33c7a33a133a4cd5a06395fece5;p=safe%2Fjmp%2Flinux-2.6

diff --git a/crypto/md5.c b/crypto/md5.c
index 93d18e8..30efc7d 100644
--- a/crypto/md5.c
+++ b/crypto/md5.c
@@ -15,18 +15,14 @@
  * any later version.
  *
  */
+#include <crypto/internal/hash.h>
+#include <crypto/md5.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/string.h>
-#include <linux/crypto.h>
 #include <linux/types.h>
 #include <asm/byteorder.h>
 
-#define MD5_DIGEST_SIZE		16
-#define MD5_HMAC_BLOCK_SIZE	64
-#define MD5_BLOCK_WORDS		16
-#define MD5_HASH_WORDS		4
-
 #define F1(x, y, z)	(z ^ (x & (y ^ z)))
 #define F2(x, y, z)	F1(z, x, y)
 #define F3(x, y, z)	(x ^ y ^ z)
@@ -35,12 +31,6 @@
 #define MD5STEP(f, w, x, y, z, in, s) \
 	(w += f(x, y, z) + in, w = (w<<s | w>>(32-s)) + x)
 
-struct md5_ctx {
-	u32 hash[MD5_HASH_WORDS];
-	u32 block[MD5_BLOCK_WORDS];
-	u64 byte_count;
-};
-
 static void md5_transform(u32 *hash, u32 const *in)
 {
 	u32 a, b, c, d;
@@ -141,26 +131,28 @@ static inline void cpu_to_le32_array(u32 *buf, unsigned int words)
 	}
 }
 
-static inline void md5_transform_helper(struct md5_ctx *ctx)
+static inline void md5_transform_helper(struct md5_state *ctx)
 {
 	le32_to_cpu_array(ctx->block, sizeof(ctx->block) / sizeof(u32));
 	md5_transform(ctx->hash, ctx->block);
 }
 
-static void md5_init(struct crypto_tfm *tfm)
+static int md5_init(struct shash_desc *desc)
 {
-	struct md5_ctx *mctx = crypto_tfm_ctx(tfm);
+	struct md5_state *mctx = shash_desc_ctx(desc);
 
 	mctx->hash[0] = 0x67452301;
 	mctx->hash[1] = 0xefcdab89;
 	mctx->hash[2] = 0x98badcfe;
 	mctx->hash[3] = 0x10325476;
 	mctx->byte_count = 0;
+
+	return 0;
 }
 
-static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
+static int md5_update(struct shash_desc *desc, const u8 *data, unsigned int len)
 {
-	struct md5_ctx *mctx = crypto_tfm_ctx(tfm);
+	struct md5_state *mctx = shash_desc_ctx(desc);
 	const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
 
 	mctx->byte_count += len;
@@ -168,7 +160,7 @@ static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
 	if (avail > len) {
 		memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
 		       data, len);
-		return;
+		return 0;
 	}
 
 	memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
@@ -186,11 +178,13 @@ static void md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
 	}
 
 	memcpy(mctx->block, data, len);
+
+	return 0;
 }
 
-static void md5_final(struct crypto_tfm *tfm, u8 *out)
+static int md5_final(struct shash_desc *desc, u8 *out)
 {
-	struct md5_ctx *mctx = crypto_tfm_ctx(tfm);
+	struct md5_state *mctx = shash_desc_ctx(desc);
 	const unsigned int offset = mctx->byte_count & 0x3f;
 	char *p = (char *)mctx->block + offset;
 	int padding = 56 - (offset + 1);
@@ -212,34 +206,55 @@ static void md5_final(struct crypto_tfm *tfm, u8 *out)
 	cpu_to_le32_array(mctx->hash, sizeof(mctx->hash) / sizeof(u32));
 	memcpy(out, mctx->hash, sizeof(mctx->hash));
 	memset(mctx, 0, sizeof(*mctx));
+
+	return 0;
 }
 
-static struct crypto_alg alg = {
-	.cra_name	=	"md5",
-	.cra_flags	=	CRYPTO_ALG_TYPE_DIGEST,
-	.cra_blocksize	=	MD5_HMAC_BLOCK_SIZE,
-	.cra_ctxsize	=	sizeof(struct md5_ctx),
-	.cra_module	=	THIS_MODULE,
-	.cra_list	=	LIST_HEAD_INIT(alg.cra_list),
-	.cra_u		=	{ .digest = {
-	.dia_digestsize	=	MD5_DIGEST_SIZE,
-	.dia_init   	= 	md5_init,
-	.dia_update 	=	md5_update,
-	.dia_final  	=	md5_final } }
+static int md5_export(struct shash_desc *desc, void *out)
+{
+	struct md5_state *ctx = shash_desc_ctx(desc);
+
+	memcpy(out, ctx, sizeof(*ctx));
+	return 0;
+}
+
+static int md5_import(struct shash_desc *desc, const void *in)
+{
+	struct md5_state *ctx = shash_desc_ctx(desc);
+
+	memcpy(ctx, in, sizeof(*ctx));
+	return 0;
+}
+
+static struct shash_alg alg = {
+	.digestsize	=	MD5_DIGEST_SIZE,
+	.init		=	md5_init,
+	.update		=	md5_update,
+	.final		=	md5_final,
+	.export		=	md5_export,
+	.import		=	md5_import,
+	.descsize	=	sizeof(struct md5_state),
+	.statesize	=	sizeof(struct md5_state),
+	.base		=	{
+		.cra_name	=	"md5",
+		.cra_flags	=	CRYPTO_ALG_TYPE_SHASH,
+		.cra_blocksize	=	MD5_HMAC_BLOCK_SIZE,
+		.cra_module	=	THIS_MODULE,
+	}
 };
 
-static int __init init(void)
+static int __init md5_mod_init(void)
 {
-	return crypto_register_alg(&alg);
+	return crypto_register_shash(&alg);
 }
 
-static void __exit fini(void)
+static void __exit md5_mod_fini(void)
 {
-	crypto_unregister_alg(&alg);
+	crypto_unregister_shash(&alg);
 }
 
-module_init(init);
-module_exit(fini);
+module_init(md5_mod_init);
+module_exit(md5_mod_fini);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("MD5 Message Digest Algorithm");