osfmk/kern/page_decrypt.h

   1 /*
   2  * Copyright (c) 2005-2008 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifdef  KERNEL_PRIVATE
  30
  31 #ifndef _KERN_PAGE_DECRYPT_H
  32 #define _KERN_PAGE_DECRYPT_H
  33
  34 /*
  35  * Interface for DSMOS
  36  */
  37 typedef int     (*dsmos_page_transform_hook_t) (const void *,void*, unsigned long long, void *);
  38 extern  void    dsmos_page_transform_hook(dsmos_page_transform_hook_t hook);    /* exported */
  39
  40 extern  int     dsmos_page_transform(const void *,void*, unsigned long long, void*);
  41
  42
  43 /*
  44  *Interface for text decryption family
  45  */
  46 struct pager_crypt_info {
  47         /* Decrypt one page */
  48         int     (*page_decrypt)(const void *src_vaddr, void *dst_vaddr,
  49                                 unsigned long long src_offset, void *crypt_ops);
  50         /* Pager using this crypter terminates - crypt module not needed anymore */
  51         void    (*crypt_end)(void *crypt_ops);
  52         /* Private data for the crypter */
  53         void    *crypt_ops;
  54 };
  55 typedef struct pager_crypt_info pager_crypt_info_t;
  56
  57 typedef int (*text_crypter_create_hook_t)(struct pager_crypt_info *crypt_info,
  58                                                 const char *id, void *crypt_data);
  59 extern void text_crypter_create_hook_set(text_crypter_create_hook_t hook);
  60 extern text_crypter_create_hook_t text_crypter_create;
  61
  62 #endif  /* _KERN_PAGE_DECRYPT_H */
  63
  64 #endif  /* KERNEL_PRIVATE */