Merge remote-tracking branch 'remotes/origin/at91-4.14-trunk/base_crypto' into linux-4.14-at91

Author: cristibirsan

Documentation/crypto/api-samples.rst

@@ -194,7 +194,7 @@ Code Example For Use of Operational State Memory With SHASH
         char *hash_alg_name = "sha1-padlock-nano";
         int ret;
 
-        alg = crypto_alloc_shash(hash_alg_name, CRYPTO_ALG_TYPE_SHASH, 0);
+        alg = crypto_alloc_shash(hash_alg_name, 0, 0);
         if (IS_ERR(alg)) {
                 pr_info("can't alloc alg %s\n", hash_alg_name);
                 return PTR_ERR(alg);

drivers/crypto/atmel-ecc.c

@@ -186,7 +186,10 @@ static int atmel_ecc_init_ecdh_cmd(struct atmel_ecc_cmd *cmd,
 	 * always be the same. Use a macro for the key size to avoid unnecessary
 	 * computations.
 	 */
-	copied = sg_copy_to_buffer(pubkey, 1, cmd->data, ATMEL_ECC_PUBKEY_SIZE);
+	copied = sg_copy_to_buffer(pubkey,
+				   sg_nents_for_len(pubkey,
+						    ATMEL_ECC_PUBKEY_SIZE),
+				   cmd->data, ATMEL_ECC_PUBKEY_SIZE);
 	if (copied != ATMEL_ECC_PUBKEY_SIZE)
 		return -EINVAL;
 
@@ -268,15 +271,17 @@ static void atmel_ecdh_done(struct atmel_ecc_work_data *work_data, void *areq,
 	struct kpp_request *req = areq;
 	struct atmel_ecdh_ctx *ctx = work_data->ctx;
 	struct atmel_ecc_cmd *cmd = &work_data->cmd;
-	size_t copied;
-	size_t n_sz = ctx->n_sz;
+	size_t copied, n_sz;
 
 	if (status)
 		goto free_work_data;
 
+	/* might want less than we've got */
+	n_sz = min_t(size_t, ctx->n_sz, req->dst_len);
+
 	/* copy the shared secret */
-	copied = sg_copy_from_buffer(req->dst, 1, &cmd->data[RSP_DATA_IDX],
-				     n_sz);
+	copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst, n_sz),
+				     &cmd->data[RSP_DATA_IDX], n_sz);
 	if (copied != n_sz)
 		status = -EINVAL;
 
@@ -440,18 +445,22 @@ static int atmel_ecdh_generate_public_key(struct kpp_request *req)
 {
 	struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
 	struct atmel_ecdh_ctx *ctx = kpp_tfm_ctx(tfm);
-	size_t copied;
+	size_t copied, nbytes;
 	int ret = 0;
 
 	if (ctx->do_fallback) {
 		kpp_request_set_tfm(req, ctx->fallback);
 		return crypto_kpp_generate_public_key(req);
 	}
 
+	/* might want less than we've got */
+	nbytes = min_t(size_t, ATMEL_ECC_PUBKEY_SIZE, req->dst_len);
+
 	/* public key was saved at private key generation */
-	copied = sg_copy_from_buffer(req->dst, 1, ctx->public_key,
-				     ATMEL_ECC_PUBKEY_SIZE);
-	if (copied != ATMEL_ECC_PUBKEY_SIZE)
+	copied = sg_copy_from_buffer(req->dst,
+				     sg_nents_for_len(req->dst, nbytes),
+				     ctx->public_key, nbytes);
+	if (copied != nbytes)
 		ret = -EINVAL;
 
 	return ret;
@@ -470,6 +479,10 @@ static int atmel_ecdh_compute_shared_secret(struct kpp_request *req)
 		return crypto_kpp_compute_shared_secret(req);
 	}
 
+	/* must have exactly two points to be on the curve */
+	if (req->src_len != ATMEL_ECC_PUBKEY_SIZE)
+		return -EINVAL;
+
 	gfp = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? GFP_KERNEL :
 							     GFP_ATOMIC;
 
@@ -554,10 +567,6 @@ static int atmel_ecdh_init_tfm(struct crypto_kpp *tfm)
 	}
 
 	crypto_kpp_set_flags(fallback, crypto_kpp_get_flags(tfm));
-
-	dev_info(&ctx->client->dev, "Using '%s' as fallback implementation.\n",
-		 crypto_tfm_alg_driver_name(crypto_kpp_tfm(fallback)));
-
 	ctx->fallback = fallback;
 
 	return 0;

drivers/crypto/atmel-sha.c

@@ -2316,9 +2316,7 @@ struct atmel_sha_authenc_ctx *atmel_sha_authenc_spawn(unsigned long mode)
 		goto error;
 	}
 
-	tfm = crypto_alloc_ahash(name,
-				 CRYPTO_ALG_TYPE_AHASH,
-				 CRYPTO_ALG_TYPE_AHASH_MASK);
+	tfm = crypto_alloc_ahash(name, 0, 0);
 	if (IS_ERR(tfm)) {
 		err = PTR_ERR(tfm);
 		goto error;

drivers/crypto/inside-secure/safexcel_hash.c

@@ -887,8 +887,7 @@ static int safexcel_hmac_setkey(const char *alg, const u8 *key,
 	u8 *ipad, *opad;
 	int ret;
 
-	tfm = crypto_alloc_ahash(alg, CRYPTO_ALG_TYPE_AHASH,
-				 CRYPTO_ALG_TYPE_AHASH_MASK);
+	tfm = crypto_alloc_ahash(alg, 0, 0);
 	if (IS_ERR(tfm))
 		return PTR_ERR(tfm);
 

drivers/crypto/marvell/hash.c

@@ -1183,8 +1183,7 @@ static int mv_cesa_ahmac_setkey(const char *hash_alg_name,
 	u8 *opad;
 	int ret;
 
-	tfm = crypto_alloc_ahash(hash_alg_name, CRYPTO_ALG_TYPE_AHASH,
-				 CRYPTO_ALG_TYPE_AHASH_MASK);
+	tfm = crypto_alloc_ahash(hash_alg_name, 0, 0);
 	if (IS_ERR(tfm))
 		return PTR_ERR(tfm);
 

drivers/crypto/qce/sha.c

@@ -394,8 +394,7 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
 	else
 		return -EINVAL;
 
-	ahash_tfm = crypto_alloc_ahash(alg_name, CRYPTO_ALG_TYPE_AHASH,
-				       CRYPTO_ALG_TYPE_AHASH_MASK);
+	ahash_tfm = crypto_alloc_ahash(alg_name, 0, 0);
 	if (IS_ERR(ahash_tfm))
 		return PTR_ERR(ahash_tfm);
 

security/keys/dh.c

@@ -324,7 +324,7 @@ long __keyctl_dh_compute(struct keyctl_dh_params __user *params,
 	if (ret)
 		goto out3;
 
-	tfm = crypto_alloc_kpp("dh", CRYPTO_ALG_TYPE_KPP, 0);
+	tfm = crypto_alloc_kpp("dh", 0, 0);
 	if (IS_ERR(tfm)) {
 		ret = PTR_ERR(tfm);
 		goto out3;