diff options
| author | Eric Biggers <ebiggers@google.com> | 2019-06-02 22:40:58 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-06-13 14:31:40 +0800 |
| commit | 177f87d063ebc7a11a38bdafaca8fec4a9dae13e (patch) | |
| tree | c9a8a882acbe5b95e57768e89a643053b3b824b8 /crypto/algapi.c | |
| parent | d6ebf5286f8f94a254a8c90d4b9f2a8b076a8634 (diff) | |
| download | linux-177f87d063ebc7a11a38bdafaca8fec4a9dae13e.tar.gz linux-177f87d063ebc7a11a38bdafaca8fec4a9dae13e.tar.bz2 linux-177f87d063ebc7a11a38bdafaca8fec4a9dae13e.zip | |
crypto: algapi - require cra_name and cra_driver_name
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@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/algapi.c')
| -rw-r--r-- | crypto/algapi.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c index 7c51f45d1cf1..5278e139a161 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) |