drivers/staging/rtl8187se/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 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,20))
  26 #define list_for_each_entry(pos, head, member)                          \
  27         for (pos = list_entry((head)->next, typeof(*pos), member),      \
  28                      prefetch(pos->member.next);                        \
  29              &pos->member != (head);                                    \
  30              pos = list_entry(pos->member.next, typeof(*pos), member),  \
  31                      prefetch(pos->member.next))
  32
  33 static inline void cond_resched(void)
  34 {
  35         if (need_resched()) {
  36                 set_current_state(TASK_RUNNING);
  37                 schedule();
  38         }
  39 }
  40 #endif
  41
  42 extern enum km_type crypto_km_types[];
  43
  44 static inline enum km_type crypto_kmap_type(int out)
  45 {
  46         return crypto_km_types[(in_softirq() ? 2 : 0) + out];
  47 }
  48
  49 static inline void *crypto_kmap(struct page *page, int out)
  50 {
  51         return kmap_atomic(page, crypto_kmap_type(out));
  52 }
  53
  54 static inline void crypto_kunmap(void *vaddr, int out)
  55 {
  56         kunmap_atomic(vaddr, crypto_kmap_type(out));
  57 }
  58
  59 static inline void crypto_yield(struct crypto_tfm *tfm)
  60 {
  61         if (!in_softirq())
  62                 cond_resched();
  63 }
  64
  65 static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
  66 {
  67         return (void *)&tfm[1];
  68 }
  69
  70 struct crypto_alg *crypto_alg_lookup(const char *name);
  71
  72 #ifdef CONFIG_KMOD
  73 void crypto_alg_autoload(const char *name);
  74 struct crypto_alg *crypto_alg_mod_lookup(const char *name);
  75 #else
  76 static inline struct crypto_alg *crypto_alg_mod_lookup(const char *name)
  77 {
  78         return crypto_alg_lookup(name);
  79 }
  80 #endif
  81
  82 #ifdef CONFIG_CRYPTO_HMAC
  83 int crypto_alloc_hmac_block(struct crypto_tfm *tfm);
  84 void crypto_free_hmac_block(struct crypto_tfm *tfm);
  85 #else
  86 static inline int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
  87 {
  88         return 0;
  89 }
  90
  91 static inline void crypto_free_hmac_block(struct crypto_tfm *tfm)
  92 { }
  93 #endif
  94
  95 #ifdef CONFIG_PROC_FS
  96 void __init crypto_init_proc(void);
  97 #else
  98 static inline void crypto_init_proc(void)
  99 { }
 100 #endif
 101
 102 int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags);
 103 int crypto_init_cipher_flags(struct crypto_tfm *tfm, u32 flags);
 104 int crypto_init_compress_flags(struct crypto_tfm *tfm, u32 flags);
 105
 106 int crypto_init_digest_ops(struct crypto_tfm *tfm);
 107 int crypto_init_cipher_ops(struct crypto_tfm *tfm);
 108 int crypto_init_compress_ops(struct crypto_tfm *tfm);
 109
 110 void crypto_exit_digest_ops(struct crypto_tfm *tfm);
 111 void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
 112 void crypto_exit_compress_ops(struct crypto_tfm *tfm);
 113
 114 #endif  /* _CRYPTO_INTERNAL_H */
 115