[S390] aes-s390 key length.
Register aes-s390 algorithms with the actual supported max keylen size Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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33464e3b57
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f67d136966
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@ -119,7 +119,8 @@ static struct crypto_alg aes_alg = {
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.cra_name = "aes",
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.cra_driver_name = "aes-s390",
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.cra_priority = CRYPT_S390_PRIORITY,
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.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
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.cra_flags = CRYPTO_ALG_TYPE_CIPHER |
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = AES_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct s390_aes_ctx),
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.cra_module = THIS_MODULE,
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@ -206,7 +207,8 @@ static struct crypto_alg ecb_aes_alg = {
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.cra_name = "ecb(aes)",
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.cra_driver_name = "ecb-aes-s390",
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.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
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.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
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.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = AES_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct s390_aes_ctx),
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.cra_type = &crypto_blkcipher_type,
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@ -300,7 +302,8 @@ static struct crypto_alg cbc_aes_alg = {
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.cra_name = "cbc(aes)",
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.cra_driver_name = "cbc-aes-s390",
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.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
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.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
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.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER |
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = AES_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct s390_aes_ctx),
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.cra_type = &crypto_blkcipher_type,
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@ -333,10 +336,14 @@ static int __init aes_init(void)
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return -EOPNOTSUPP;
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/* z9 109 and z9 BC/EC only support 128 bit key length */
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if (keylen_flag == AES_KEYLEN_128)
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if (keylen_flag == AES_KEYLEN_128) {
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aes_alg.cra_u.cipher.cia_max_keysize = AES_MIN_KEY_SIZE;
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ecb_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE;
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cbc_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE;
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printk(KERN_INFO
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"aes_s390: hardware acceleration only available for"
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"128 bit keys\n");
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}
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ret = crypto_register_alg(&aes_alg);
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if (ret)
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