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Commit feedfdaa authored by Adrian-Ken Rueegsegger's avatar Adrian-Ken Rueegsegger Committed by Herbert Xu
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[CRYPTO] rmd320: Fix endian issues 



This patch fixes endian issues making rmd320 work
properly on big-endian machines.

Signed-off-by: default avatarAdrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Acked-by: default avatarSebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 2952ff1a

crypto/rmd320.c

+9 −28
Original line number Diff line number Diff line
@@ -47,7 +47,7 @@ struct rmd320_ctx { 
#define F5(x, y, z) (x ^ (y | ~z))



#define ROUND(a, b, c, d, e, f, k, x, s)  { \

	(a) += f((b), (c), (d)) + (x) + (k); \

	(a) += f((b), (c), (d)) + le32_to_cpu(x) + (k); \

	(a) = rol32((a), (s)) + (e); \

	(c) = rol32((c), 10); \

}
@@ -280,28 +280,6 @@ static void rmd320_transform(u32 *state, u32 const *in) 
	return;

}



static inline void le32_to_cpu_array(u32 *buf, unsigned int words)

{

	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 rmd320_transform_helper(struct rmd320_ctx *ctx)

{

	le32_to_cpu_array(ctx->buffer, sizeof(ctx->buffer) / sizeof(u32));

	rmd320_transform(ctx->state, ctx->buffer);

}



static void rmd320_init(struct crypto_tfm *tfm)

{

	struct rmd320_ctx *rctx = crypto_tfm_ctx(tfm);
@@ -340,13 +318,13 @@ static void rmd320_update(struct crypto_tfm *tfm, const u8 *data, 
	memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail),

	       data, avail);



	rmd320_transform_helper(rctx);

	rmd320_transform(rctx->state, rctx->buffer);

	data += avail;

	len -= avail;



	while (len >= sizeof(rctx->buffer)) {

		memcpy(rctx->buffer, data, sizeof(rctx->buffer));

		rmd320_transform_helper(rctx);

		rmd320_transform(rctx->state, rctx->buffer);

		data += sizeof(rctx->buffer);

		len -= sizeof(rctx->buffer);

	}
@@ -358,10 +336,12 @@ static void rmd320_update(struct crypto_tfm *tfm, const u8 *data, 
static void rmd320_final(struct crypto_tfm *tfm, u8 *out)

{

	struct rmd320_ctx *rctx = crypto_tfm_ctx(tfm);

	u32 index, padlen;

	u32 i, index, padlen;

	u64 bits;

	u32 *dst = (u32 *)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;
@@ -372,7 +352,8 @@ static void rmd320_final(struct crypto_tfm *tfm, u8 *out) 
	rmd320_update(tfm, (const u8 *)&bits, sizeof(bits));



	/* Store state in digest */

	memcpy(out, rctx->state, sizeof(rctx->state));

	for (i = 0; i < 10; i++)

		dst[i] = cpu_to_le32(rctx->state[i]);



	/* Wipe context */

	memset(rctx, 0, sizeof(*rctx));