From f67d1369665b2ce88227c40d9c9a6c8ba16bb866 Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Fri, 4 May 2007 18:47:47 +0200 Subject: [PATCH] [S390] aes-s390 key length. Register aes-s390 algorithms with the actual supported max keylen size Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky --- arch/s390/crypto/aes_s390.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index 91636353f6..3660ca6a33 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -119,7 +119,8 @@ static struct crypto_alg aes_alg = { .cra_name = "aes", .cra_driver_name = "aes-s390", .cra_priority = CRYPT_S390_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER | + CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct s390_aes_ctx), .cra_module = THIS_MODULE, @@ -206,7 +207,8 @@ static struct crypto_alg ecb_aes_alg = { .cra_name = "ecb(aes)", .cra_driver_name = "ecb-aes-s390", .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | + CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct s390_aes_ctx), .cra_type = &crypto_blkcipher_type, @@ -300,7 +302,8 @@ static struct crypto_alg cbc_aes_alg = { .cra_name = "cbc(aes)", .cra_driver_name = "cbc-aes-s390", .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | + CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct s390_aes_ctx), .cra_type = &crypto_blkcipher_type, @@ -333,10 +336,14 @@ static int __init aes_init(void) return -EOPNOTSUPP; /* z9 109 and z9 BC/EC only support 128 bit key length */ - if (keylen_flag == AES_KEYLEN_128) + if (keylen_flag == AES_KEYLEN_128) { + aes_alg.cra_u.cipher.cia_max_keysize = AES_MIN_KEY_SIZE; + ecb_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE; + cbc_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE; printk(KERN_INFO "aes_s390: hardware acceleration only available for" "128 bit keys\n"); + } ret = crypto_register_alg(&aes_alg); if (ret) -- 2.39.5