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authorHerbert Xu <herbert@gondor.apana.org.au>2023-10-03 11:43:27 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2023-10-13 18:27:27 +0800
commit36b6fbefc06cbfe7b5f17c32445ecaf082c24449 (patch)
tree34a586bb240ebdd0692702ba8a784bdc0ac59a78 /crypto/ctr.c
parentc9e4b76ff4a706afc30a7c10c89cc075df487485 (diff)
crypto: ctr - Only access common skcipher fields on spawn
As skcipher spawns may be of the type lskcipher, only the common fields may be accessed. This was already the case but use the correct helpers to make this more obvious. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/ctr.c')
-rw-r--r--crypto/ctr.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/crypto/ctr.c b/crypto/ctr.c
index 23c698b22013..1420496062d5 100644
--- a/crypto/ctr.c
+++ b/crypto/ctr.c
@@ -258,8 +258,8 @@ static int crypto_rfc3686_create(struct crypto_template *tmpl,
struct rtattr **tb)
{
struct skcipher_instance *inst;
- struct skcipher_alg *alg;
struct crypto_skcipher_spawn *spawn;
+ struct skcipher_alg_common *alg;
u32 mask;
int err;
@@ -278,11 +278,11 @@ static int crypto_rfc3686_create(struct crypto_template *tmpl,
if (err)
goto err_free_inst;
- alg = crypto_spawn_skcipher_alg(spawn);
+ alg = crypto_spawn_skcipher_alg_common(spawn);
/* We only support 16-byte blocks. */
err = -EINVAL;
- if (crypto_skcipher_alg_ivsize(alg) != CTR_RFC3686_BLOCK_SIZE)
+ if (alg->ivsize != CTR_RFC3686_BLOCK_SIZE)
goto err_free_inst;
/* Not a stream cipher? */
@@ -303,11 +303,9 @@ static int crypto_rfc3686_create(struct crypto_template *tmpl,
inst->alg.base.cra_alignmask = alg->base.cra_alignmask;
inst->alg.ivsize = CTR_RFC3686_IV_SIZE;
- inst->alg.chunksize = crypto_skcipher_alg_chunksize(alg);
- inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg) +
- CTR_RFC3686_NONCE_SIZE;
- inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(alg) +
- CTR_RFC3686_NONCE_SIZE;
+ inst->alg.chunksize = alg->chunksize;
+ inst->alg.min_keysize = alg->min_keysize + CTR_RFC3686_NONCE_SIZE;
+ inst->alg.max_keysize = alg->max_keysize + CTR_RFC3686_NONCE_SIZE;
inst->alg.setkey = crypto_rfc3686_setkey;
inst->alg.encrypt = crypto_rfc3686_crypt;