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authorHerbert Xu <herbert@gondor.apana.org.au>2015-05-28 22:07:53 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2015-06-03 10:48:33 +0800
commit5eb8ec6dc857d5027bc8cf7268a199107a583ae5 (patch)
tree10e5d26c2b95a199307219cd78838c5ab1fd251d /crypto/aead.c
parentaddfda2fc2ed2fcd7896ef689aa75a7d35a7579b (diff)
downloadlwn-5eb8ec6dc857d5027bc8cf7268a199107a583ae5.tar.gz
lwn-5eb8ec6dc857d5027bc8cf7268a199107a583ae5.zip
crypto: aead - Add type-safe init/exit functions
As it stands the only non-type safe functions left in the new AEAD interface are the cra_init/cra_exit functions. It means exposing the ugly __crypto_aead_cast to every AEAD implementor. This patch adds type-safe init/exit functions to AEAD. Existing algorithms are unaffected while new implementations can simply fill in these two instead of cra_init/cra_exit. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/aead.c')
-rw-r--r--crypto/aead.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/crypto/aead.c b/crypto/aead.c
index 8cdea89909cd..4bab3cff3578 100644
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -174,6 +174,14 @@ static int crypto_old_aead_init_tfm(struct crypto_tfm *tfm)
return 0;
}
+static void crypto_aead_exit_tfm(struct crypto_tfm *tfm)
+{
+ struct crypto_aead *aead = __crypto_aead_cast(tfm);
+ struct aead_alg *alg = crypto_aead_alg(aead);
+
+ alg->exit(aead);
+}
+
static int crypto_aead_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_aead *aead = __crypto_aead_cast(tfm);
@@ -189,6 +197,12 @@ static int crypto_aead_init_tfm(struct crypto_tfm *tfm)
aead->child = __crypto_aead_cast(tfm);
aead->authsize = alg->maxauthsize;
+ if (alg->exit)
+ aead->base.exit = crypto_aead_exit_tfm;
+
+ if (alg->init)
+ return alg->init(aead);
+
return 0;
}