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authorHerbert Xu <herbert@gondor.apana.org.au>2016-06-29 18:03:46 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2016-07-01 23:45:02 +0800
commit927ef32dccfe6e048a163138b8e714b2d944194d (patch)
tree884de0ba5d1d47c7997ab4aec04519d22c597477 /crypto
parentc34252fd712c10da3a0b018b3b5dbe552ac1e7b9 (diff)
downloadlinux-stericsson-927ef32dccfe6e048a163138b8e714b2d944194d.tar.gz
crypto: authenc - Consider ahash ASYNC bit
As it is, if you get an async ahash with a sync skcipher you'll end up with a sync authenc, which is wrong. This patch fixes it by considering the ASYNC bit from ahash as well. It also fixes a little bug where if a sync version of authenc is requested we may still end up using an async ahash. Neither of them should have any effect as none of the authenc users can request for a sync authenc. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/authenc.c6
-rw-r--r--crypto/authencesn.c6
2 files changed, 8 insertions, 4 deletions
diff --git a/crypto/authenc.c b/crypto/authenc.c
index c7cc11d36480..309fbc17222d 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -392,7 +392,8 @@ static int crypto_authenc_create(struct crypto_template *tmpl,
return -EINVAL;
auth = ahash_attr_alg(tb[1], CRYPTO_ALG_TYPE_HASH,
- CRYPTO_ALG_TYPE_AHASH_MASK);
+ CRYPTO_ALG_TYPE_AHASH_MASK |
+ crypto_requires_sync(algt->type, algt->mask));
if (IS_ERR(auth))
return PTR_ERR(auth);
@@ -438,7 +439,8 @@ static int crypto_authenc_create(struct crypto_template *tmpl,
enc->cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
goto err_drop_enc;
- inst->alg.base.cra_flags = enc->cra_flags & CRYPTO_ALG_ASYNC;
+ inst->alg.base.cra_flags = (auth_base->cra_flags | enc->cra_flags) &
+ CRYPTO_ALG_ASYNC;
inst->alg.base.cra_priority = enc->cra_priority * 10 +
auth_base->cra_priority;
inst->alg.base.cra_blocksize = enc->cra_blocksize;
diff --git a/crypto/authencesn.c b/crypto/authencesn.c
index 0c0468869e25..0662b1848c5d 100644
--- a/crypto/authencesn.c
+++ b/crypto/authencesn.c
@@ -413,7 +413,8 @@ static int crypto_authenc_esn_create(struct crypto_template *tmpl,
return -EINVAL;
auth = ahash_attr_alg(tb[1], CRYPTO_ALG_TYPE_HASH,
- CRYPTO_ALG_TYPE_AHASH_MASK);
+ CRYPTO_ALG_TYPE_AHASH_MASK |
+ crypto_requires_sync(algt->type, algt->mask));
if (IS_ERR(auth))
return PTR_ERR(auth);
@@ -456,7 +457,8 @@ static int crypto_authenc_esn_create(struct crypto_template *tmpl,
enc->cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
goto err_drop_enc;
- inst->alg.base.cra_flags = enc->cra_flags & CRYPTO_ALG_ASYNC;
+ inst->alg.base.cra_flags = (auth_base->cra_flags | enc->cra_flags) &
+ CRYPTO_ALG_ASYNC;
inst->alg.base.cra_priority = enc->cra_priority * 10 +
auth_base->cra_priority;
inst->alg.base.cra_blocksize = enc->cra_blocksize;