Commit 9e2f284e authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Jens Axboe
Browse files

crypto: add crypto_has_kpp() 



Add helper function to determine if a given key-agreement protocol
primitive is supported.

Signed-off-by: default avatarHannes Reinecke <hare@suse.de>
Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
Reviewed-by: default avatarChaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: default avatarHimanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 85cc4243

crypto/kpp.c

+6 −0
Original line number Diff line number Diff line
@@ -104,6 +104,12 @@ int crypto_grab_kpp(struct crypto_kpp_spawn *spawn, 
}

EXPORT_SYMBOL_GPL(crypto_grab_kpp);



int crypto_has_kpp(const char *alg_name, u32 type, u32 mask)

{

	return crypto_type_has_alg(alg_name, &crypto_kpp_type, type, mask);

}

EXPORT_SYMBOL_GPL(crypto_has_kpp);



static void kpp_prepare_alg(struct kpp_alg *alg)

{

	struct crypto_alg *base = &alg->base;

include/crypto/kpp.h

+2 −0
Original line number Diff line number Diff line
@@ -104,6 +104,8 @@ struct kpp_alg { 
 */

struct crypto_kpp *crypto_alloc_kpp(const char *alg_name, u32 type, u32 mask);



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



static inline struct crypto_tfm *crypto_kpp_tfm(struct crypto_kpp *tfm)

{

	return &tfm->base;