Commit 534562e5 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: aead - Add crypto_has_aead 



Add the helper crypto_has_aead.  This is meant to replace the
existing use of crypto_has_alg to locate AEAD algorithms.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 02968703

crypto/aead.c

+6 −0
Original line number Diff line number Diff line
@@ -269,6 +269,12 @@ struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask) 
}

EXPORT_SYMBOL_GPL(crypto_alloc_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);

}

EXPORT_SYMBOL_GPL(crypto_has_aead);



static int aead_prepare_alg(struct aead_alg *alg)

{

	struct crypto_istat_aead *istat = aead_get_stat(alg);

include/crypto/aead.h

+12 −0
Original line number Diff line number Diff line
@@ -217,6 +217,18 @@ static inline void crypto_free_aead(struct crypto_aead *tfm) 
	crypto_destroy_tfm(tfm, crypto_aead_tfm(tfm));

}



/**

 * crypto_has_aead() - Search for the availability of an aead.

 * @alg_name: is the cra_name / name or cra_driver_name / driver name of the

 *	      aead

 * @type: specifies the type of the aead

 * @mask: specifies the mask for the aead

 *

 * Return: true when the aead is known to the kernel crypto API; false

 *	   otherwise

 */

int crypto_has_aead(const char *alg_name, u32 type, u32 mask);



static inline const char *crypto_aead_driver_name(struct crypto_aead *tfm)

{

	return crypto_tfm_alg_driver_name(crypto_aead_tfm(tfm));