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Commit 293f89cf authored by Ofer Heifetz's avatar Ofer Heifetz Committed by Herbert Xu
Browse files

crypto: inside-secure - md5 support 



This patch adds the MD5 algorithm support to the Inside Secure SafeXcel
cryptographic engine driver.

Signed-off-by: default avatarOfer Heifetz <oferh@marvell.com>
Signed-off-by: default avatarAntoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 63b94278

drivers/crypto/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -691,6 +691,7 @@ config CRYPTO_DEV_SAFEXCEL 
	select CRYPTO_BLKCIPHER

	select CRYPTO_HASH

	select CRYPTO_HMAC

	select CRYPTO_MD5

	select CRYPTO_SHA1

	select CRYPTO_SHA256

	select CRYPTO_SHA512

drivers/crypto/inside-secure/safexcel.c

+2 −0
Original line number Diff line number Diff line
@@ -406,6 +406,7 @@ static int safexcel_hw_init(struct safexcel_crypto_priv *priv) 
		val |= EIP197_PROTOCOL_ENCRYPT_ONLY | EIP197_PROTOCOL_HASH_ONLY;

		val |= EIP197_PROTOCOL_ENCRYPT_HASH | EIP197_PROTOCOL_HASH_DECRYPT;

		val |= EIP197_ALG_AES_ECB | EIP197_ALG_AES_CBC;

		val |= EIP197_ALG_MD5;

		val |= EIP197_ALG_SHA1 | EIP197_ALG_HMAC_SHA1;

		val |= EIP197_ALG_SHA2 | EIP197_ALG_HMAC_SHA2;

		writel(val, EIP197_PE(priv) + EIP197_PE_EIP96_FUNCTION_EN(pe));
@@ -841,6 +842,7 @@ static int safexcel_request_ring_irq(struct platform_device *pdev, const char *n 
static struct safexcel_alg_template *safexcel_algs[] = {

	&safexcel_alg_ecb_aes,

	&safexcel_alg_cbc_aes,

	&safexcel_alg_md5,

	&safexcel_alg_sha1,

	&safexcel_alg_sha224,

	&safexcel_alg_sha256,

drivers/crypto/inside-secure/safexcel.h

+2 −0
Original line number Diff line number Diff line
@@ -316,6 +316,7 @@ struct safexcel_context_record { 
#define CONTEXT_CONTROL_CRYPTO_ALG_AES256	(0x7 << 17)

#define CONTEXT_CONTROL_DIGEST_PRECOMPUTED	(0x1 << 21)

#define CONTEXT_CONTROL_DIGEST_HMAC		(0x3 << 21)

#define CONTEXT_CONTROL_CRYPTO_ALG_MD5		(0x0 << 23)

#define CONTEXT_CONTROL_CRYPTO_ALG_SHA1		(0x2 << 23)

#define CONTEXT_CONTROL_CRYPTO_ALG_SHA224	(0x4 << 23)

#define CONTEXT_CONTROL_CRYPTO_ALG_SHA256	(0x3 << 23)
@@ -691,6 +692,7 @@ int safexcel_hmac_setkey(const char *alg, const u8 *key, unsigned int keylen, 
/* available algorithms */

extern struct safexcel_alg_template safexcel_alg_ecb_aes;

extern struct safexcel_alg_template safexcel_alg_cbc_aes;

extern struct safexcel_alg_template safexcel_alg_md5;

extern struct safexcel_alg_template safexcel_alg_sha1;

extern struct safexcel_alg_template safexcel_alg_sha224;

extern struct safexcel_alg_template safexcel_alg_sha256;

drivers/crypto/inside-secure/safexcel_hash.c

+67 −2
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 
 */



#include <crypto/hmac.h>

#include <crypto/md5.h>

#include <crypto/sha.h>

#include <linux/device.h>

#include <linux/dma-mapping.h>
@@ -91,7 +92,9 @@ static void safexcel_context_control(struct safexcel_ahash_ctx *ctx, 


	if (req->digest == CONTEXT_CONTROL_DIGEST_PRECOMPUTED) {

		if (req->processed[0] || req->processed[1]) {

			if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA1)

			if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_MD5)

				cdesc->control_data.control0 |= CONTEXT_CONTROL_SIZE(5);

			else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA1)

				cdesc->control_data.control0 |= CONTEXT_CONTROL_SIZE(6);

			else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA224 ||

				 ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA256)
@@ -652,7 +655,10 @@ static int safexcel_ahash_final(struct ahash_request *areq) 


	/* If we have an overall 0 length request */

	if (!req->len[0] && !req->len[1] && !areq->nbytes) {

		if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA1)

		if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_MD5)

			memcpy(areq->result, md5_zero_message_hash,

			       MD5_DIGEST_SIZE);

		else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA1)

			memcpy(areq->result, sha1_zero_message_hash,

			       SHA1_DIGEST_SIZE);

		else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA224)
@@ -1554,3 +1560,62 @@ struct safexcel_alg_template safexcel_alg_hmac_sha384 = { 
		},

	},

};



static int safexcel_md5_init(struct ahash_request *areq)

{

	struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq));

	struct safexcel_ahash_req *req = ahash_request_ctx(areq);



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



	req->state[0] = MD5_H0;

	req->state[1] = MD5_H1;

	req->state[2] = MD5_H2;

	req->state[3] = MD5_H3;



	ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_MD5;

	req->digest = CONTEXT_CONTROL_DIGEST_PRECOMPUTED;

	req->state_sz = MD5_DIGEST_SIZE;



	return 0;

}



static int safexcel_md5_digest(struct ahash_request *areq)

{

	int ret = safexcel_md5_init(areq);



	if (ret)

		return ret;



	return safexcel_ahash_finup(areq);

}



struct safexcel_alg_template safexcel_alg_md5 = {

	.type = SAFEXCEL_ALG_TYPE_AHASH,

	.engines = EIP97IES | EIP197B | EIP197D,

	.alg.ahash = {

		.init = safexcel_md5_init,

		.update = safexcel_ahash_update,

		.final = safexcel_ahash_final,

		.finup = safexcel_ahash_finup,

		.digest = safexcel_md5_digest,

		.export = safexcel_ahash_export,

		.import = safexcel_ahash_import,

		.halg = {

			.digestsize = MD5_DIGEST_SIZE,

			.statesize = sizeof(struct safexcel_ahash_export_state),

			.base = {

				.cra_name = "md5",

				.cra_driver_name = "safexcel-md5",

				.cra_priority = 300,

				.cra_flags = CRYPTO_ALG_ASYNC |

					     CRYPTO_ALG_KERN_DRIVER_ONLY,

				.cra_blocksize = MD5_HMAC_BLOCK_SIZE,

				.cra_ctxsize = sizeof(struct safexcel_ahash_ctx),

				.cra_init = safexcel_ahash_cra_init,

				.cra_exit = safexcel_ahash_cra_exit,

				.cra_module = THIS_MODULE,

			},

		},

	},

};