return crypto_aead_decrypt(subreq);
}
-static int echainiv_encrypt_first(struct aead_request *req)
-{
- struct crypto_aead *geniv = crypto_aead_reqtfm(req);
- struct echainiv_ctx *ctx = crypto_aead_ctx(geniv);
- int err = 0;
-
- spin_lock_bh(&ctx->geniv.lock);
- if (geniv->encrypt != echainiv_encrypt_first)
- goto unlock;
-
- geniv->encrypt = echainiv_encrypt;
- err = crypto_rng_get_bytes(crypto_default_rng, ctx->salt,
- crypto_aead_ivsize(geniv));
-
-unlock:
- spin_unlock_bh(&ctx->geniv.lock);
-
- if (err)
- return err;
-
- return echainiv_encrypt(req);
-}
-
static int echainiv_init(struct crypto_tfm *tfm)
{
struct crypto_aead *geniv = __crypto_aead_cast(tfm);
crypto_aead_set_reqsize(geniv, sizeof(struct aead_request));
+ err = crypto_get_default_rng();
+ if (err)
+ goto out;
+
+ err = crypto_rng_get_bytes(crypto_default_rng, ctx->salt,
+ crypto_aead_ivsize(geniv));
+ crypto_put_default_rng();
+ if (err)
+ goto out;
+
ctx->null = crypto_get_default_null_skcipher();
err = PTR_ERR(ctx->null);
if (IS_ERR(ctx->null))
inst->alg.ivsize > MAX_IV_SIZE)
goto free_inst;
- inst->alg.encrypt = echainiv_encrypt_first;
+ inst->alg.encrypt = echainiv_encrypt;
inst->alg.decrypt = echainiv_decrypt;
inst->alg.base.cra_init = echainiv_init;
goto out;
}
-static int echainiv_create(struct crypto_template *tmpl, struct rtattr **tb)
-{
- int err;
-
- err = crypto_get_default_rng();
- if (err)
- goto out;
-
- err = echainiv_aead_create(tmpl, tb);
- if (err)
- goto put_rng;
-
-out:
- return err;
-
-put_rng:
- crypto_put_default_rng();
- goto out;
-}
-
static void echainiv_free(struct crypto_instance *inst)
{
aead_geniv_free(aead_instance(inst));
- crypto_put_default_rng();
}
static struct crypto_template echainiv_tmpl = {
.name = "echainiv",
- .create = echainiv_create,
+ .create = echainiv_aead_create,
.free = echainiv_free,
.module = THIS_MODULE,
};