include/crypto/engine.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Crypto engine API
   4  *
   5  * Copyright (c) 2016 Baolin Wang <baolin.wang@linaro.org>
   6  */
   7 #ifndef _CRYPTO_ENGINE_H
   8 #define _CRYPTO_ENGINE_H
   9
  10 #include <crypto/aead.h>
  11 #include <crypto/akcipher.h>
  12 #include <crypto/hash.h>
  13 #include <crypto/kpp.h>
  14 #include <crypto/skcipher.h>
  15 #include <linux/types.h>
  16
  17 struct crypto_engine;
  18 struct device;
  19
  20 /*
  21  * struct crypto_engine_op - crypto hardware engine operations
  22  * @do_one_request: do encryption for current request
  23  */
  24 struct crypto_engine_op {
  25         int (*do_one_request)(struct crypto_engine *engine,
  26                               void *areq);
  27 };
  28
  29 struct aead_engine_alg {
  30         struct aead_alg base;
  31         struct crypto_engine_op op;
  32 };
  33
  34 struct ahash_engine_alg {
  35         struct ahash_alg base;
  36         struct crypto_engine_op op;
  37 };
  38
  39 struct akcipher_engine_alg {
  40         struct akcipher_alg base;
  41         struct crypto_engine_op op;
  42 };
  43
  44 struct kpp_engine_alg {
  45         struct kpp_alg base;
  46         struct crypto_engine_op op;
  47 };
  48
  49 struct skcipher_engine_alg {
  50         struct skcipher_alg base;
  51         struct crypto_engine_op op;
  52 };
  53
  54 int crypto_transfer_aead_request_to_engine(struct crypto_engine *engine,
  55                                            struct aead_request *req);
  56 int crypto_transfer_akcipher_request_to_engine(struct crypto_engine *engine,
  57                                                struct akcipher_request *req);
  58 int crypto_transfer_hash_request_to_engine(struct crypto_engine *engine,
  59                                                struct ahash_request *req);
  60 int crypto_transfer_kpp_request_to_engine(struct crypto_engine *engine,
  61                                           struct kpp_request *req);
  62 int crypto_transfer_skcipher_request_to_engine(struct crypto_engine *engine,
  63                                                struct skcipher_request *req);
  64 void crypto_finalize_aead_request(struct crypto_engine *engine,
  65                                   struct aead_request *req, int err);
  66 void crypto_finalize_akcipher_request(struct crypto_engine *engine,
  67                                       struct akcipher_request *req, int err);
  68 void crypto_finalize_hash_request(struct crypto_engine *engine,
  69                                   struct ahash_request *req, int err);
  70 void crypto_finalize_kpp_request(struct crypto_engine *engine,
  71                                  struct kpp_request *req, int err);
  72 void crypto_finalize_skcipher_request(struct crypto_engine *engine,
  73                                       struct skcipher_request *req, int err);
  74 int crypto_engine_start(struct crypto_engine *engine);
  75 int crypto_engine_stop(struct crypto_engine *engine);
  76 struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt);
  77 struct crypto_engine *crypto_engine_alloc_init_and_set(struct device *dev,
  78                                                        bool retry_support,
  79                                                        int (*cbk_do_batch)(struct crypto_engine *engine),
  80                                                        bool rt, int qlen);
  81 void crypto_engine_exit(struct crypto_engine *engine);
  82
  83 int crypto_engine_register_aead(struct aead_engine_alg *alg);
  84 void crypto_engine_unregister_aead(struct aead_engine_alg *alg);
  85 int crypto_engine_register_aeads(struct aead_engine_alg *algs, int count);
  86 void crypto_engine_unregister_aeads(struct aead_engine_alg *algs, int count);
  87
  88 int crypto_engine_register_ahash(struct ahash_engine_alg *alg);
  89 void crypto_engine_unregister_ahash(struct ahash_engine_alg *alg);
  90 int crypto_engine_register_ahashes(struct ahash_engine_alg *algs, int count);
  91 void crypto_engine_unregister_ahashes(struct ahash_engine_alg *algs,
  92                                       int count);
  93
  94 int crypto_engine_register_akcipher(struct akcipher_engine_alg *alg);
  95 void crypto_engine_unregister_akcipher(struct akcipher_engine_alg *alg);
  96
  97 int crypto_engine_register_kpp(struct kpp_engine_alg *alg);
  98 void crypto_engine_unregister_kpp(struct kpp_engine_alg *alg);
  99
 100 int crypto_engine_register_skcipher(struct skcipher_engine_alg *alg);
 101 void crypto_engine_unregister_skcipher(struct skcipher_engine_alg *alg);
 102 int crypto_engine_register_skciphers(struct skcipher_engine_alg *algs,
 103                                      int count);
 104 void crypto_engine_unregister_skciphers(struct skcipher_engine_alg *algs,
 105                                         int count);
 106
 107 #endif /* _CRYPTO_ENGINE_H */