projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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> | |
| 1da177e4 LT |
19 | #include <asm/kmap_types.h> |
| 20 | ||
| 21 | extern enum km_type crypto_km_types[]; | |
| 22 | ||
| 23 | static inline enum km_type crypto_kmap_type(int out) | |
| 24 | { | |
| 25 | return crypto_km_types[(in_softirq() ? 2 : 0) + out]; | |
| 26 | } | |
| 27 | ||
| 28 | static inline void *crypto_kmap(struct page *page, int out) | |
| 29 | { | |
| 30 | return kmap_atomic(page, crypto_kmap_type(out)); | |
| 31 | } | |
| 32 | ||
| 33 | static inline void crypto_kunmap(void *vaddr, int out) | |
| 34 | { | |
| 35 | kunmap_atomic(vaddr, crypto_kmap_type(out)); | |
| 36 | } | |
| 37 | ||
| 38 | static inline void crypto_yield(struct crypto_tfm *tfm) | |
| 39 | { | |
| 15333038 | 40 | if (!in_atomic()) |
| 1da177e4 LT |
41 | cond_resched(); |
| 42 | } | |
| 43 | ||
| 1da177e4 LT |
44 | #ifdef CONFIG_CRYPTO_HMAC |
| 45 | int crypto_alloc_hmac_block(struct crypto_tfm *tfm); | |
| 46 | void crypto_free_hmac_block(struct crypto_tfm *tfm); | |
| 47 | #else | |
| 48 | static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm) | |
| 49 | { | |
| 50 | return 0; | |
| 51 | } | |
| 52 | ||
| 53 | static inline void crypto_free_hmac_block(struct crypto_tfm *tfm) | |
| 54 | { } | |
| 55 | #endif | |
| 56 | ||
| 57 | #ifdef CONFIG_PROC_FS | |
| 58 | void __init crypto_init_proc(void); | |
| 59 | #else | |
| 60 | static inline void crypto_init_proc(void) | |
| 61 | { } | |
| 62 | #endif | |
| 63 | ||
| 64 | int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags); | |
| 65 | int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags); | |
| 66 | int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags); | |
| 67 | ||
| 68 | int crypto_init_digest_ops(struct crypto_tfm *tfm); | |
| 69 | int crypto_init_cipher_ops(struct crypto_tfm *tfm); | |
| 70 | int crypto_init_compress_ops(struct crypto_tfm *tfm); | |
| 71 | ||
| 72 | void crypto_exit_digest_ops(struct crypto_tfm *tfm); | |
| 73 | void crypto_exit_cipher_ops(struct crypto_tfm *tfm); | |
| 74 | void crypto_exit_compress_ops(struct crypto_tfm *tfm); | |
| 75 | ||
| 76 | #endif /* _CRYPTO_INTERNAL_H */ | |
| 77 |