diff options
Diffstat (limited to 'crypto/aead.c')
| -rw-r--r-- | crypto/aead.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/crypto/aead.c b/crypto/aead.c index 5d14b775036e..08d44c5e5c33 100644 --- a/crypto/aead.c +++ b/crypto/aead.c @@ -120,6 +120,7 @@ static int crypto_aead_init_tfm(struct crypto_tfm *tfm) struct aead_alg *alg = crypto_aead_alg(aead); crypto_aead_set_flags(aead, CRYPTO_TFM_NEED_KEY); + crypto_aead_set_reqsize(aead, crypto_tfm_alg_reqsize(tfm)); aead->authsize = alg->maxauthsize; @@ -204,6 +205,25 @@ struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask) } EXPORT_SYMBOL_GPL(crypto_alloc_aead); +struct crypto_sync_aead *crypto_alloc_sync_aead(const char *alg_name, u32 type, u32 mask) +{ + struct crypto_aead *tfm; + + /* Only sync algorithms are allowed. */ + mask |= CRYPTO_ALG_ASYNC; + type &= ~(CRYPTO_ALG_ASYNC); + + tfm = crypto_alloc_tfm(alg_name, &crypto_aead_type, type, mask); + + if (!IS_ERR(tfm) && WARN_ON(crypto_aead_reqsize(tfm) > MAX_SYNC_AEAD_REQSIZE)) { + crypto_free_aead(tfm); + return ERR_PTR(-EINVAL); + } + + return (struct crypto_sync_aead *)tfm; +} +EXPORT_SYMBOL_GPL(crypto_alloc_sync_aead); + int crypto_has_aead(const char *alg_name, u32 type, u32 mask) { return crypto_type_has_alg(alg_name, &crypto_aead_type, type, mask); |