internal.h revision 50a09b3b099ebc8326b85b4f508fb47655e1fed3 
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
15
16//#include <linux/crypto.h>
17#include "rtl_crypto.h"
18#include <linux/mm.h>
19#include <linux/highmem.h>
20#include <linux/init.h>
21#include <asm/hardirq.h>
22#include <asm/softirq.h>
23#include <asm/kmap_types.h>
24
25
26extern enum km_type crypto_km_types[];
27
28static inline enum km_type crypto_kmap_type(int out)
29{
30	return crypto_km_types[(in_softirq() ? 2 : 0) + out];
31}
32
33static inline void *crypto_kmap(struct page *page, int out)
34{
35	return kmap_atomic(page, crypto_kmap_type(out));
36}
37
38static inline void crypto_kunmap(void *vaddr, int out)
39{
40	kunmap_atomic(vaddr, crypto_kmap_type(out));
41}
42
43static inline void crypto_yield(struct crypto_tfm *tfm)
44{
45	if (!in_softirq())
46		cond_resched();
47}
48
49static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
50{
51	return (void *)&tfm[1];
52}
53
54struct crypto_alg *crypto_alg_lookup(const char *name);
55
56#ifdef CONFIG_KMOD
57void crypto_alg_autoload(const char *name);
58struct crypto_alg *crypto_alg_mod_lookup(const char *name);
59#else
60static inline struct crypto_alg *crypto_alg_mod_lookup(const char *name)
61{
62	return crypto_alg_lookup(name);
63}
64#endif
65
66#ifdef CONFIG_CRYPTO_HMAC
67int crypto_alloc_hmac_block(struct crypto_tfm *tfm);
68void crypto_free_hmac_block(struct crypto_tfm *tfm);
69#else
70static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
71{
72	return 0;
73}
74
75static inline void crypto_free_hmac_block(struct crypto_tfm *tfm)
76{ }
77#endif
78
79#ifdef CONFIG_PROC_FS
80void __init crypto_init_proc(void);
81#else
82static inline void crypto_init_proc(void)
83{ }
84#endif
85
86int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags);
87int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags);
88int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags);
89
90int crypto_init_digest_ops(struct crypto_tfm *tfm);
91int crypto_init_cipher_ops(struct crypto_tfm *tfm);
92int crypto_init_compress_ops(struct crypto_tfm *tfm);
93
94void crypto_exit_digest_ops(struct crypto_tfm *tfm);
95void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
96void crypto_exit_compress_ops(struct crypto_tfm *tfm);
97
98#endif	/* _CRYPTO_INTERNAL_H */
99
100