X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=crypto%2Frmd256.c;h=72eafa8d2e7bdcb3e403eadeca3a58f6cc298ad0;hb=887965e6576a78f71b9b98dec43fd1c73becd2e8;hp=060ee81cb8ade196501ac2bf178139dfd7bb59b9;hpb=c555c28d9da517579085a00fc80e725b0b5d9fce;p=safe%2Fjmp%2Flinux-2.6

diff --git a/crypto/rmd256.c b/crypto/rmd256.c
index 060ee81..72eafa8 100644
--- a/crypto/rmd256.c
+++ b/crypto/rmd256.c
@@ -13,11 +13,10 @@
  * any later version.
  *
  */
+#include <crypto/internal/hash.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/mm.h>
-#include <linux/crypto.h>
-#include <linux/cryptohash.h>
 #include <linux/types.h>
 #include <asm/byteorder.h>
 
@@ -26,7 +25,7 @@
 struct rmd256_ctx {
 	u64 byte_count;
 	u32 state[8];
-	u32 buffer[16];
+	__le32 buffer[16];
 };
 
 #define K1  RMD_K1
@@ -44,11 +43,11 @@ struct rmd256_ctx {
 #define F4(x, y, z) (y ^ (z & (x ^ y)))	/* z ? x : y */
 
 #define ROUND(a, b, c, d, f, k, x, s)  { \
-	(a) += f((b), (c), (d)) + (x) + (k); \
+	(a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k); \
 	(a) = rol32((a), (s)); \
 }
 
-static void rmd256_transform(u32 *state, u32 const *in)
+static void rmd256_transform(u32 *state, const __le32 *in)
 {
 	u32 aa, bb, cc, dd, aaa, bbb, ccc, ddd, tmp;
 
@@ -233,31 +232,9 @@ static void rmd256_transform(u32 *state, u32 const *in)
 	return;
 }
 
-static inline void le32_to_cpu_array(u32 *buf, unsigned int words)
+static int rmd256_init(struct shash_desc *desc)
 {
-	while (words--) {
-		le32_to_cpus(buf);
-		buf++;
-	}
-}
-
-static inline void cpu_to_le32_array(u32 *buf, unsigned int words)
-{
-	while (words--) {
-		cpu_to_le32s(buf);
-		buf++;
-	}
-}
-
-static inline void rmd256_transform_helper(struct rmd256_ctx *ctx)
-{
-	le32_to_cpu_array(ctx->buffer, sizeof(ctx->buffer) / sizeof(u32));
-	rmd256_transform(ctx->state, ctx->buffer);
-}
-
-static void rmd256_init(struct crypto_tfm *tfm)
-{
-	struct rmd256_ctx *rctx = crypto_tfm_ctx(tfm);
+	struct rmd256_ctx *rctx = shash_desc_ctx(desc);
 
 	rctx->byte_count = 0;
 
@@ -271,12 +248,14 @@ static void rmd256_init(struct crypto_tfm *tfm)
 	rctx->state[7] = RMD_H8;
 
 	memset(rctx->buffer, 0, sizeof(rctx->buffer));
+
+	return 0;
 }
 
-static void rmd256_update(struct crypto_tfm *tfm, const u8 *data,
-			  unsigned int len)
+static int rmd256_update(struct shash_desc *desc, const u8 *data,
+			 unsigned int len)
 {
-	struct rmd256_ctx *rctx = crypto_tfm_ctx(tfm);
+	struct rmd256_ctx *rctx = shash_desc_ctx(desc);
 	const u32 avail = sizeof(rctx->buffer) - (rctx->byte_count & 0x3f);
 
 	rctx->byte_count += len;
@@ -285,73 +264,80 @@ static void rmd256_update(struct crypto_tfm *tfm, const u8 *data,
 	if (avail > len) {
 		memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail),
 		       data, len);
-		return;
+		goto out;
 	}
 
 	memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail),
 	       data, avail);
 
-	rmd256_transform_helper(rctx);
+	rmd256_transform(rctx->state, rctx->buffer);
 	data += avail;
 	len -= avail;
 
 	while (len >= sizeof(rctx->buffer)) {
 		memcpy(rctx->buffer, data, sizeof(rctx->buffer));
-		rmd256_transform_helper(rctx);
+		rmd256_transform(rctx->state, rctx->buffer);
 		data += sizeof(rctx->buffer);
 		len -= sizeof(rctx->buffer);
 	}
 
 	memcpy(rctx->buffer, data, len);
+
+out:
+	return 0;
 }
 
 /* Add padding and return the message digest. */
-static void rmd256_final(struct crypto_tfm *tfm, u8 *out)
+static int rmd256_final(struct shash_desc *desc, u8 *out)
 {
-	struct rmd256_ctx *rctx = crypto_tfm_ctx(tfm);
-	u32 index, padlen;
-	u64 bits;
+	struct rmd256_ctx *rctx = shash_desc_ctx(desc);
+	u32 i, index, padlen;
+	__le64 bits;
+	__le32 *dst = (__le32 *)out;
 	static const u8 padding[64] = { 0x80, };
-	bits = rctx->byte_count << 3;
+
+	bits = cpu_to_le64(rctx->byte_count << 3);
 
 	/* Pad out to 56 mod 64 */
 	index = rctx->byte_count & 0x3f;
 	padlen = (index < 56) ? (56 - index) : ((64+56) - index);
-	rmd256_update(tfm, padding, padlen);
+	rmd256_update(desc, padding, padlen);
 
 	/* Append length */
-	rmd256_update(tfm, (const u8 *)&bits, sizeof(bits));
+	rmd256_update(desc, (const u8 *)&bits, sizeof(bits));
 
 	/* Store state in digest */
-	memcpy(out, rctx->state, sizeof(rctx->state));
+	for (i = 0; i < 8; i++)
+		dst[i] = cpu_to_le32p(&rctx->state[i]);
 
 	/* Wipe context */
 	memset(rctx, 0, sizeof(*rctx));
+
+	return 0;
 }
 
-static struct crypto_alg alg = {
-	.cra_name	 =	"rmd256",
-	.cra_driver_name =	"rmd256",
-	.cra_flags	 =	CRYPTO_ALG_TYPE_DIGEST,
-	.cra_blocksize	 =	RMD256_BLOCK_SIZE,
-	.cra_ctxsize	 =	sizeof(struct rmd256_ctx),
-	.cra_module	 =	THIS_MODULE,
-	.cra_list	 =	LIST_HEAD_INIT(alg.cra_list),
-	.cra_u		 =	{ .digest = {
-	.dia_digestsize	 =	RMD256_DIGEST_SIZE,
-	.dia_init	 =	rmd256_init,
-	.dia_update	 =	rmd256_update,
-	.dia_final	 =	rmd256_final } }
+static struct shash_alg alg = {
+	.digestsize	=	RMD256_DIGEST_SIZE,
+	.init		=	rmd256_init,
+	.update		=	rmd256_update,
+	.final		=	rmd256_final,
+	.descsize	=	sizeof(struct rmd256_ctx),
+	.base		=	{
+		.cra_name	 =	"rmd256",
+		.cra_flags	 =	CRYPTO_ALG_TYPE_SHASH,
+		.cra_blocksize	 =	RMD256_BLOCK_SIZE,
+		.cra_module	 =	THIS_MODULE,
+	}
 };
 
 static int __init rmd256_mod_init(void)
 {
-	return crypto_register_alg(&alg);
+	return crypto_register_shash(&alg);
 }
 
 static void __exit rmd256_mod_fini(void)
 {
-	crypto_unregister_alg(&alg);
+	crypto_unregister_shash(&alg);
 }
 
 module_init(rmd256_mod_init);
@@ -359,5 +345,3 @@ module_exit(rmd256_mod_fini);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("RIPEMD-256 Message Digest");
-
-MODULE_ALIAS("rmd256");