1 /*

     2  * AEAD: Authenticated Encryption with Associated Data

     3  * 

     4  * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>

     5  *

     6  * This program is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License as published by the Free

     8  * Software Foundation; either version 2 of the License, or (at your option) 

     9  * any later version.

    10  *

    11  */

    12 

    13 #ifndef _CRYPTO_INTERNAL_AEAD_H

    14 #define _CRYPTO_INTERNAL_AEAD_H

    15 

    16 #include <crypto/aead.h>

    17 #include <crypto/algapi.h>

    18 #include <linux/types.h>

    19 

    20 struct rtattr;

    21 

    22 struct crypto_aead_spawn {

    23 	struct crypto_spawn base;

    24 };

    25 

    26 extern const struct crypto_type crypto_nivaead_type;

    27 

    28 static inline void crypto_set_aead_spawn(

    29 	struct crypto_aead_spawn *spawn, struct crypto_instance *inst)

    30 {

    31 	crypto_set_spawn(&spawn->base, inst);

    32 }

    33 

    34 int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name,

    35 		     u32 type, u32 mask);

    36 

    37 static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)

    38 {

    39 	crypto_drop_spawn(&spawn->base);

    40 }

    41 

    42 static inline struct crypto_alg *crypto_aead_spawn_alg(

    43 	struct crypto_aead_spawn *spawn)

    44 {

    45 	return spawn->base.alg;

    46 }

    47 

    48 static inline struct crypto_aead *crypto_spawn_aead(

    49 	struct crypto_aead_spawn *spawn)

    50 {

    51 	return __crypto_aead_cast(

    52 		crypto_spawn_tfm(&spawn->base, CRYPTO_ALG_TYPE_AEAD,

    53 				 CRYPTO_ALG_TYPE_MASK));

    54 }

    55 

    56 struct crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl,

    57 					 struct rtattr **tb, u32 type,

    58 					 u32 mask);

    59 void aead_geniv_free(struct crypto_instance *inst);

    60 int aead_geniv_init(struct crypto_tfm *tfm);

    61 void aead_geniv_exit(struct crypto_tfm *tfm);

    62 

    63 static inline struct crypto_aead *aead_geniv_base(struct crypto_aead *geniv)

    64 {

    65 	return crypto_aead_crt(geniv)->base;

    66 }

    67 

    68 static inline void *aead_givcrypt_reqctx(struct aead_givcrypt_request *req)

    69 {

    70 	return aead_request_ctx(&req->areq);

    71 }

    72 

    73 static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req,

    74 					  int err)

    75 {

    76 	aead_request_complete(&req->areq, err);

    77 }

    78 

    79 #endif	/* _CRYPTO_INTERNAL_AEAD_H */

    80