iokit/Kernel/IOHibernateInternal.h

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include <stdint.h>
  25
  26 #ifdef __cplusplus
  27
  28 enum { kIOHibernateAESKeySize = 128 };  /* bits */
  29
  30 struct IOHibernateVars
  31 {
  32     hibernate_page_list_t *             page_list;
  33     hibernate_page_list_t *             page_list_wired;
  34     class IOBufferMemoryDescriptor *    ioBuffer;
  35     class IOBufferMemoryDescriptor *    srcBuffer;
  36     class IOMemoryDescriptor *          previewBuffer;
  37     OSData *                            previewData;
  38     OSData *                            fileExtents;
  39     OSObject *                          saveBootDevice;
  40
  41     struct IOPolledFileIOVars *         fileVars;
  42     vm_offset_t                         videoMapping;
  43     vm_size_t                           videoAllocSize;
  44     vm_size_t                           videoMapSize;
  45     uint8_t                             haveFastBoot;
  46     uint8_t                             saveBootAudioVolume;
  47     uint8_t                             wiredCryptKey[kIOHibernateAESKeySize / 8];
  48     uint8_t                             cryptKey[kIOHibernateAESKeySize / 8];
  49 };
  50 typedef struct IOHibernateVars IOHibernateVars;
  51
  52
  53 struct IOPolledFileIOVars
  54 {
  55     struct kern_direct_file_io_ref_t *  fileRef;
  56     class OSArray *                     pollers;
  57     IOByteCount                         blockSize;
  58     uint8_t *                           buffer;
  59     IOByteCount                         bufferSize;
  60     IOByteCount                         bufferLimit;
  61     IOByteCount                         bufferOffset;
  62     IOByteCount                         bufferHalf;
  63     IOByteCount                         extentRemaining;
  64     IOByteCount                         lastRead;
  65     uint64_t                            block0;
  66     uint64_t                            position;
  67     uint64_t                            extentPosition;
  68     uint64_t                            encryptStart;
  69     IOPolledFileExtent *                extentMap;
  70     IOPolledFileExtent *                currentExtent;
  71     bool                                io;
  72     IOReturn                            ioStatus;
  73 };
  74 typedef struct IOPolledFileIOVars IOPolledFileIOVars;
  75
  76 #endif          /* __cplusplus */
  77
  78 enum
  79 {
  80     kIOHibernateTagSignature = 0x53000000,
  81     kIOHibernateTagLength    = 0x00001fff,
  82 };
  83
  84 #ifdef __cplusplus
  85 extern "C"
  86 #endif          /* __cplusplus */
  87 uint32_t
  88 hibernate_sum(uint8_t *buf, int32_t len);
  89
  90 extern vm_offset_t sectHIBB;
  91 extern int         sectSizeHIB;
  92 extern vm_offset_t sectDATAB;
  93 extern int         sectSizeDATA;
  94