Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/crypto/internal.h
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Wed Mar 4 11:03:09 2009 UTC (15 years, 6 months ago) by niro
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Wed Mar 4 11:03:09 2009 UTC (15 years, 6 months ago) by niro
File MIME type: text/plain
File size: 2440 byte(s)
Tag kernel26-2.6.12-alx-r9
1 | /* |
2 | * Cryptographic API. |
3 | * |
4 | * Copyright (c) 2002 James Morris <jmorris@intercode.com.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 | #ifndef _CRYPTO_INTERNAL_H |
13 | #define _CRYPTO_INTERNAL_H |
14 | #include <linux/crypto.h> |
15 | #include <linux/mm.h> |
16 | #include <linux/highmem.h> |
17 | #include <linux/interrupt.h> |
18 | #include <linux/init.h> |
19 | #include <linux/kmod.h> |
20 | #include <asm/kmap_types.h> |
21 | |
22 | extern enum km_type crypto_km_types[]; |
23 | |
24 | static inline enum km_type crypto_kmap_type(int out) |
25 | { |
26 | return crypto_km_types[(in_softirq() ? 2 : 0) + out]; |
27 | } |
28 | |
29 | static inline void *crypto_kmap(struct page *page, int out) |
30 | { |
31 | return kmap_atomic(page, crypto_kmap_type(out)); |
32 | } |
33 | |
34 | static inline void crypto_kunmap(void *vaddr, int out) |
35 | { |
36 | kunmap_atomic(vaddr, crypto_kmap_type(out)); |
37 | } |
38 | |
39 | static inline void crypto_yield(struct crypto_tfm *tfm) |
40 | { |
41 | if (!in_atomic()) |
42 | cond_resched(); |
43 | } |
44 | |
45 | static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm) |
46 | { |
47 | return (void *)&tfm[1]; |
48 | } |
49 | |
50 | struct crypto_alg *crypto_alg_lookup(const char *name); |
51 | |
52 | /* A far more intelligent version of this is planned. For now, just |
53 | * try an exact match on the name of the algorithm. */ |
54 | static inline struct crypto_alg *crypto_alg_mod_lookup(const char *name) |
55 | { |
56 | return try_then_request_module(crypto_alg_lookup(name), name); |
57 | } |
58 | |
59 | #ifdef CONFIG_CRYPTO_HMAC |
60 | int crypto_alloc_hmac_block(struct crypto_tfm *tfm); |
61 | void crypto_free_hmac_block(struct crypto_tfm *tfm); |
62 | #else |
63 | static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm) |
64 | { |
65 | return 0; |
66 | } |
67 | |
68 | static inline void crypto_free_hmac_block(struct crypto_tfm *tfm) |
69 | { } |
70 | #endif |
71 | |
72 | #ifdef CONFIG_PROC_FS |
73 | void __init crypto_init_proc(void); |
74 | #else |
75 | static inline void crypto_init_proc(void) |
76 | { } |
77 | #endif |
78 | |
79 | int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags); |
80 | int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags); |
81 | int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags); |
82 | |
83 | int crypto_init_digest_ops(struct crypto_tfm *tfm); |
84 | int crypto_init_cipher_ops(struct crypto_tfm *tfm); |
85 | int crypto_init_compress_ops(struct crypto_tfm *tfm); |
86 | |
87 | void crypto_exit_digest_ops(struct crypto_tfm *tfm); |
88 | void crypto_exit_cipher_ops(struct crypto_tfm *tfm); |
89 | void crypto_exit_compress_ops(struct crypto_tfm *tfm); |
90 | |
91 | #endif /* _CRYPTO_INTERNAL_H */ |
92 |