From: Eric Biggers <ebiggers@xxxxxxxxxx>
Now that all algorithms explicitly set cra_driver_name, make it required
for algorithm registration and remove the code that generated a default
cra_driver_name.
Also add an explicit check that cra_name is set too, since that's
obviously required too, yet it didn't seem to be checked anywhere.
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
crypto/algapi.c | 22 ++++------------------
1 file changed, 4 insertions(+), 18 deletions(-)
diff --git a/crypto/algapi.c b/crypto/algapi.c
index 7c51f45d1cf16..5278e139a161e 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -26,23 +26,6 @@
static LIST_HEAD(crypto_template_list);
-static inline int crypto_set_driver_name(struct crypto_alg *alg)
-{
- static const char suffix[] = "-generic";
- char *driver_name = alg->cra_driver_name;
- int len;
-
- if (*driver_name)
- return 0;
-
- len = strlcpy(driver_name, alg->cra_name, CRYPTO_MAX_ALG_NAME);
- if (len + sizeof(suffix) > CRYPTO_MAX_ALG_NAME)
- return -ENAMETOOLONG;
-
- memcpy(driver_name + len, suffix, sizeof(suffix));
- return 0;
-}
-
static inline void crypto_check_module_sig(struct module *mod)
{
if (fips_enabled && mod && !module_sig_ok(mod))
@@ -54,6 +37,9 @@ static int crypto_check_alg(struct crypto_alg *alg)
{
crypto_check_module_sig(alg->cra_module);
+ if (!alg->cra_name[0] || !alg->cra_driver_name[0])
+ return -EINVAL;
+
if (alg->cra_alignmask & (alg->cra_alignmask + 1))
return -EINVAL;
@@ -79,7 +65,7 @@ static int crypto_check_alg(struct crypto_alg *alg)
refcount_set(&alg->cra_refcnt, 1);
- return crypto_set_driver_name(alg);
+ return 0;
}
static void crypto_free_instance(struct crypto_instance *inst)
--
2.21.0
