ia64/linux-2.6.18-xen.hg

view crypto/internal.h @ 854:950b9eb27661

usbback: fix urb interval value for interrupt urbs.

Signed-off-by: Noboru Iwamatsu <n_iwamatsu@jp.fujitsu.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Apr 06 13:51:20 2009 +0100 (2009-04-06)
parents 831230e53067
children
line source
1 /*
2 * Cryptographic API.
3 *
4 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
5 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
10 * any later version.
11 *
12 */
13 #ifndef _CRYPTO_INTERNAL_H
14 #define _CRYPTO_INTERNAL_H
15 #include <linux/crypto.h>
16 #include <linux/mm.h>
17 #include <linux/highmem.h>
18 #include <linux/interrupt.h>
19 #include <linux/init.h>
20 #include <linux/list.h>
21 #include <linux/kernel.h>
22 #include <linux/rwsem.h>
23 #include <linux/slab.h>
24 #include <asm/kmap_types.h>
26 extern struct list_head crypto_alg_list;
27 extern struct rw_semaphore crypto_alg_sem;
29 extern enum km_type crypto_km_types[];
31 static inline enum km_type crypto_kmap_type(int out)
32 {
33 return crypto_km_types[(in_softirq() ? 2 : 0) + out];
34 }
36 static inline void *crypto_kmap(struct page *page, int out)
37 {
38 return kmap_atomic(page, crypto_kmap_type(out));
39 }
41 static inline void crypto_kunmap(void *vaddr, int out)
42 {
43 kunmap_atomic(vaddr, crypto_kmap_type(out));
44 }
46 static inline void crypto_yield(struct crypto_tfm *tfm)
47 {
48 if (tfm->crt_flags & CRYPTO_TFM_REQ_MAY_SLEEP)
49 cond_resched();
50 }
52 #ifdef CONFIG_CRYPTO_HMAC
53 int crypto_alloc_hmac_block(struct crypto_tfm *tfm);
54 void crypto_free_hmac_block(struct crypto_tfm *tfm);
55 #else
56 static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
57 {
58 return 0;
59 }
61 static inline void crypto_free_hmac_block(struct crypto_tfm *tfm)
62 { }
63 #endif
65 #ifdef CONFIG_PROC_FS
66 void __init crypto_init_proc(void);
67 #else
68 static inline void crypto_init_proc(void)
69 { }
70 #endif
72 static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg,
73 int flags)
74 {
75 return alg->cra_ctxsize;
76 }
78 static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg,
79 int flags)
80 {
81 unsigned int len = alg->cra_ctxsize;
83 switch (flags & CRYPTO_TFM_MODE_MASK) {
84 case CRYPTO_TFM_MODE_CBC:
85 len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1);
86 len += alg->cra_blocksize;
87 break;
88 }
90 return len;
91 }
93 static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg,
94 int flags)
95 {
96 return alg->cra_ctxsize;
97 }
99 int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags);
100 int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags);
101 int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags);
103 int crypto_init_digest_ops(struct crypto_tfm *tfm);
104 int crypto_init_cipher_ops(struct crypto_tfm *tfm);
105 int crypto_init_compress_ops(struct crypto_tfm *tfm);
107 void crypto_exit_digest_ops(struct crypto_tfm *tfm);
108 void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
109 void crypto_exit_compress_ops(struct crypto_tfm *tfm);
111 #endif /* _CRYPTO_INTERNAL_H */