Root/
1 | /* |
2 | * Symmetric key ciphers. |
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_SKCIPHER_H |
14 | #define _CRYPTO_SKCIPHER_H |
15 | |
16 | #include <linux/crypto.h> |
17 | #include <linux/kernel.h> |
18 | #include <linux/slab.h> |
19 | |
20 | /** |
21 | * struct skcipher_givcrypt_request - Crypto request with IV generation |
22 | * @seq: Sequence number for IV generation |
23 | * @giv: Space for generated IV |
24 | * @creq: The crypto request itself |
25 | */ |
26 | struct skcipher_givcrypt_request { |
27 | u64 seq; |
28 | u8 *giv; |
29 | |
30 | struct ablkcipher_request creq; |
31 | }; |
32 | |
33 | static inline struct crypto_ablkcipher *skcipher_givcrypt_reqtfm( |
34 | struct skcipher_givcrypt_request *req) |
35 | { |
36 | return crypto_ablkcipher_reqtfm(&req->creq); |
37 | } |
38 | |
39 | static inline int crypto_skcipher_givencrypt( |
40 | struct skcipher_givcrypt_request *req) |
41 | { |
42 | struct ablkcipher_tfm *crt = |
43 | crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req)); |
44 | return crt->givencrypt(req); |
45 | }; |
46 | |
47 | static inline int crypto_skcipher_givdecrypt( |
48 | struct skcipher_givcrypt_request *req) |
49 | { |
50 | struct ablkcipher_tfm *crt = |
51 | crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req)); |
52 | return crt->givdecrypt(req); |
53 | }; |
54 | |
55 | static inline void skcipher_givcrypt_set_tfm( |
56 | struct skcipher_givcrypt_request *req, struct crypto_ablkcipher *tfm) |
57 | { |
58 | req->creq.base.tfm = crypto_ablkcipher_tfm(tfm); |
59 | } |
60 | |
61 | static inline struct skcipher_givcrypt_request *skcipher_givcrypt_cast( |
62 | struct crypto_async_request *req) |
63 | { |
64 | return container_of(ablkcipher_request_cast(req), |
65 | struct skcipher_givcrypt_request, creq); |
66 | } |
67 | |
68 | static inline struct skcipher_givcrypt_request *skcipher_givcrypt_alloc( |
69 | struct crypto_ablkcipher *tfm, gfp_t gfp) |
70 | { |
71 | struct skcipher_givcrypt_request *req; |
72 | |
73 | req = kmalloc(sizeof(struct skcipher_givcrypt_request) + |
74 | crypto_ablkcipher_reqsize(tfm), gfp); |
75 | |
76 | if (likely(req)) |
77 | skcipher_givcrypt_set_tfm(req, tfm); |
78 | |
79 | return req; |
80 | } |
81 | |
82 | static inline void skcipher_givcrypt_free(struct skcipher_givcrypt_request *req) |
83 | { |
84 | kfree(req); |
85 | } |
86 | |
87 | static inline void skcipher_givcrypt_set_callback( |
88 | struct skcipher_givcrypt_request *req, u32 flags, |
89 | crypto_completion_t complete, void *data) |
90 | { |
91 | ablkcipher_request_set_callback(&req->creq, flags, complete, data); |
92 | } |
93 | |
94 | static inline void skcipher_givcrypt_set_crypt( |
95 | struct skcipher_givcrypt_request *req, |
96 | struct scatterlist *src, struct scatterlist *dst, |
97 | unsigned int nbytes, void *iv) |
98 | { |
99 | ablkcipher_request_set_crypt(&req->creq, src, dst, nbytes, iv); |
100 | } |
101 | |
102 | static inline void skcipher_givcrypt_set_giv( |
103 | struct skcipher_givcrypt_request *req, u8 *giv, u64 seq) |
104 | { |
105 | req->giv = giv; |
106 | req->seq = seq; |
107 | } |
108 | |
109 | #endif /* _CRYPTO_SKCIPHER_H */ |
110 | |
111 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9