4 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
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)
12 #ifndef _CRYPTO_INTERNAL_H
13 #define _CRYPTO_INTERNAL_H
14 #include <linux/crypto.h>
16 #include <linux/highmem.h>
17 #include <linux/interrupt.h>
18 #include <linux/init.h>
19 #include <linux/kmod.h>
20 #include <asm/hardirq.h>
21 #include <asm/kmap_types.h>
23 extern enum km_type crypto_km_types[];
25 static inline enum km_type crypto_kmap_type(int out)
27 return crypto_km_types[(in_softirq() ? 2 : 0) + out];
30 static inline void *crypto_kmap(struct page *page, int out)
32 return kmap_atomic(page, crypto_kmap_type(out));
35 static inline void crypto_kunmap(void *vaddr, int out)
37 kunmap_atomic(vaddr, crypto_kmap_type(out));
40 static inline void crypto_yield(struct crypto_tfm *tfm)
46 static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
48 return (void *)&tfm[1];
51 struct crypto_alg *crypto_alg_lookup(const char *name);
53 /* A far more intelligent version of this is planned. For now, just
54 * try an exact match on the name of the algorithm. */
55 static inline struct crypto_alg *crypto_alg_mod_lookup(const char *name)
57 return try_then_request_module(crypto_alg_lookup(name), name);
60 #ifdef CONFIG_CRYPTO_HMAC
61 int crypto_alloc_hmac_block(struct crypto_tfm *tfm);
62 void crypto_free_hmac_block(struct crypto_tfm *tfm);
64 static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
69 static inline void crypto_free_hmac_block(struct crypto_tfm *tfm)
74 void __init crypto_init_proc(void);
76 static inline void crypto_init_proc(void)
80 int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags);
81 int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags);
82 int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags);
84 int crypto_init_digest_ops(struct crypto_tfm *tfm);
85 int crypto_init_cipher_ops(struct crypto_tfm *tfm);
86 int crypto_init_compress_ops(struct crypto_tfm *tfm);
88 void crypto_exit_digest_ops(struct crypto_tfm *tfm);
89 void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
90 void crypto_exit_compress_ops(struct crypto_tfm *tfm);
92 #endif /* _CRYPTO_INTERNAL_H */