unsigned int len, u8 *out)
{
return crypto_shash_init(desc) ?:
- crypto_shash_update(desc, data, len) ?:
- crypto_shash_final(desc, out);
+ crypto_shash_finup(desc, data, len, out);
}
int crypto_shash_digest(struct shash_desc *desc, const u8 *data,
}
EXPORT_SYMBOL_GPL(crypto_shash_digest);
-int crypto_shash_import(struct shash_desc *desc, const u8 *in)
+static int shash_no_export(struct shash_desc *desc, void *out)
{
- struct crypto_shash *tfm = desc->tfm;
- struct shash_alg *alg = crypto_shash_alg(tfm);
-
- memcpy(shash_desc_ctx(desc), in, crypto_shash_descsize(tfm));
-
- if (alg->reinit)
- alg->reinit(desc);
+ return -ENOSYS;
+}
- return 0;
+static int shash_no_import(struct shash_desc *desc, const void *in)
+{
+ return -ENOSYS;
}
-EXPORT_SYMBOL_GPL(crypto_shash_import);
static int shash_async_setkey(struct crypto_ahash *tfm, const u8 *key,
unsigned int keylen)
}
EXPORT_SYMBOL_GPL(crypto_alloc_shash);
-int crypto_register_shash(struct shash_alg *alg)
+static int shash_prepare_alg(struct shash_alg *alg)
{
struct crypto_alg *base = &alg->base;
if (alg->digestsize > PAGE_SIZE / 8 ||
- alg->descsize > PAGE_SIZE / 8)
+ alg->descsize > PAGE_SIZE / 8 ||
+ alg->statesize > PAGE_SIZE / 8)
return -EINVAL;
base->cra_type = &crypto_shash_type;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_SHASH;
+ if (!alg->import)
+ alg->import = shash_no_import;
+ if (!alg->export)
+ alg->export = shash_no_export;
+
+ return 0;
+}
+
+int crypto_register_shash(struct shash_alg *alg)
+{
+ struct crypto_alg *base = &alg->base;
+ int err;
+
+ err = shash_prepare_alg(alg);
+ if (err)
+ return err;
+
return crypto_register_alg(base);
}
EXPORT_SYMBOL_GPL(crypto_register_shash);
}
EXPORT_SYMBOL_GPL(crypto_unregister_shash);
+int shash_register_instance(struct crypto_template *tmpl,
+ struct shash_instance *inst)
+{
+ int err;
+
+ err = shash_prepare_alg(&inst->alg);
+ if (err)
+ return err;
+
+ return crypto_register_instance(tmpl, shash_crypto_instance(inst));
+}
+EXPORT_SYMBOL_GPL(shash_register_instance);
+
+void shash_free_instance(struct crypto_instance *inst)
+{
+ crypto_drop_spawn(crypto_instance_ctx(inst));
+ kfree(shash_instance(inst));
+}
+EXPORT_SYMBOL_GPL(shash_free_instance);
+
+int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
+ struct shash_alg *alg,
+ struct crypto_instance *inst)
+{
+ return crypto_init_spawn2(&spawn->base, &alg->base, inst,
+ &crypto_shash_type);
+}
+EXPORT_SYMBOL_GPL(crypto_init_shash_spawn);
+
+struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask)
+{
+ struct crypto_alg *alg;
+
+ alg = crypto_attr_alg2(rta, &crypto_shash_type, type, mask);
+ return IS_ERR(alg) ? ERR_CAST(alg) :
+ container_of(alg, struct shash_alg, base);
+}
+EXPORT_SYMBOL_GPL(shash_attr_alg);
+
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Synchronous cryptographic hash type");