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skcipher.h
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1 /*
2  * Symmetric key ciphers.
3  *
4  * Copyright (c) 2007 Herbert Xu <[email protected]>
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_SKCIPHER_H
14 #define _CRYPTO_INTERNAL_SKCIPHER_H
15 
16 #include <crypto/algapi.h>
17 #include <crypto/skcipher.h>
18 #include <linux/types.h>
19 
20 struct rtattr;
21 
24 };
25 
26 extern const struct crypto_type crypto_givcipher_type;
27 
28 static inline void crypto_set_skcipher_spawn(
29  struct crypto_skcipher_spawn *spawn, struct crypto_instance *inst)
30 {
31  crypto_set_spawn(&spawn->base, inst);
32 }
33 
34 int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
35  u32 type, u32 mask);
36 
37 struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, u32 mask);
38 
39 static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn)
40 {
41  crypto_drop_spawn(&spawn->base);
42 }
43 
44 static inline struct crypto_alg *crypto_skcipher_spawn_alg(
45  struct crypto_skcipher_spawn *spawn)
46 {
47  return spawn->base.alg;
48 }
49 
50 static inline struct crypto_ablkcipher *crypto_spawn_skcipher(
51  struct crypto_skcipher_spawn *spawn)
52 {
53  return __crypto_ablkcipher_cast(
54  crypto_spawn_tfm(&spawn->base, crypto_skcipher_type(0),
55  crypto_skcipher_mask(0)));
56 }
57 
60 const char *crypto_default_geniv(const struct crypto_alg *alg);
61 
63  struct rtattr **tb, u32 type,
64  u32 mask);
65 void skcipher_geniv_free(struct crypto_instance *inst);
66 int skcipher_geniv_init(struct crypto_tfm *tfm);
67 void skcipher_geniv_exit(struct crypto_tfm *tfm);
68 
69 static inline struct crypto_ablkcipher *skcipher_geniv_cipher(
70  struct crypto_ablkcipher *geniv)
71 {
72  return crypto_ablkcipher_crt(geniv)->base;
73 }
74 
75 static inline int skcipher_enqueue_givcrypt(
77 {
78  return ablkcipher_enqueue_request(queue, &request->creq);
79 }
80 
81 static inline struct skcipher_givcrypt_request *skcipher_dequeue_givcrypt(
82  struct crypto_queue *queue)
83 {
85  queue, offsetof(struct skcipher_givcrypt_request, creq.base));
86 }
87 
88 static inline void *skcipher_givcrypt_reqctx(
90 {
91  return ablkcipher_request_ctx(&req->creq);
92 }
93 
94 static inline void ablkcipher_request_complete(struct ablkcipher_request *req,
95  int err)
96 {
97  req->base.complete(&req->base, err);
98 }
99 
100 static inline void skcipher_givcrypt_complete(
101  struct skcipher_givcrypt_request *req, int err)
102 {
103  ablkcipher_request_complete(&req->creq, err);
104 }
105 
106 static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req)
107 {
108  return req->base.flags;
109 }
110 
111 #endif /* _CRYPTO_INTERNAL_SKCIPHER_H */
112