LXR linux/drivers/staging/rtl8192u/ieee80211/internal.h

   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
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