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
  26 extern enum km_type crypto_km_types[];
  27
  28 static inline enum km_type crypto_kmap_type(int out)
  29 {
  30         return crypto_km_types[(in_softirq() ? 2 : 0) + out];
  31 }
  32
  33 static inline void *crypto_kmap(struct page *page, int out)
  34 {
  35         return kmap_atomic(page, crypto_kmap_type(out));
  36 }
  37
  38 static inline void crypto_kunmap(void *vaddr, int out)
  39 {
  40         kunmap_atomic(vaddr, crypto_kmap_type(out));
  41 }
  42
  43 static inline void crypto_yield(struct crypto_tfm *tfm)
  44 {
  45         if (!in_softirq())
  46                 cond_resched();
  47 }
  48
  49 static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
  50 {
  51         return (void *)&tfm[1];
  52 }
  53
  54 struct crypto_alg *crypto_alg_lookup(const char *name);
  55
  56 #ifdef CONFIG_KMOD
  57 void crypto_alg_autoload(const char *name);
  58 struct crypto_alg *crypto_alg_mod_lookup(const char *name);
  59 #else
  60 static 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
  67 int crypto_alloc_hmac_block(struct crypto_tfm *tfm);
  68 void crypto_free_hmac_block(struct crypto_tfm *tfm);
  69 #else
  70 static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
  71 {
  72         return 0;
  73 }
  74
  75 static inline void crypto_free_hmac_block(struct crypto_tfm *tfm)
  76 { }
  77 #endif
  78
  79 #ifdef CONFIG_PROC_FS
  80 void __init crypto_init_proc(void);
  81 #else
  82 static inline void crypto_init_proc(void)
  83 { }
  84 #endif
  85
  86 int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags);
  87 int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags);
  88 int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags);
  89
  90 int crypto_init_digest_ops(struct crypto_tfm *tfm);
  91 int crypto_init_cipher_ops(struct crypto_tfm *tfm);
  92 int crypto_init_compress_ops(struct crypto_tfm *tfm);
  93
  94 void crypto_exit_digest_ops(struct crypto_tfm *tfm);
  95 void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
  96 void crypto_exit_compress_ops(struct crypto_tfm *tfm);
  97
  98 #endif  /* _CRYPTO_INTERNAL_H */
  99