include/crypto/internal/aead.h

   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