dist/pdisk/partition_map.h

   1 //
   2 // partition_map.h - partition map routines
   3 //
   4 // Written by Eryk Vershen
   5 //
   6
   7 /*
   8  * Copyright 1996,1998 by Apple Computer, Inc.
   9  *              All Rights Reserved
  10  *
  11  * Permission to use, copy, modify, and distribute this software and
  12  * its documentation for any purpose and without fee is hereby granted,
  13  * provided that the above copyright notice appears in all copies and
  14  * that both the copyright notice and this permission notice appear in
  15  * supporting documentation.
  16  *
  17  * APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
  18  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  19  * FOR A PARTICULAR PURPOSE.
  20  *
  21  * IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
  22  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  23  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
  24  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
  25  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  26  */
  27
  28 #ifndef __partition_map__
  29 #define __partition_map__
  30
  31 #include "dpme.h"
  32 #include "media.h"
  33
  34
  35 //
  36 // Defines
  37 //
  38 #define PBLOCK_SIZE     512
  39 #define MAX_LINUX_MAP   15
  40
  41
  42 //
  43 // Types
  44 //
  45 struct partition_map_header {
  46     MEDIA m;
  47     char *name;
  48     struct partition_map * disk_order;
  49     struct partition_map * base_order;
  50     Block0 *misc;
  51     int writable;
  52     int changed;
  53     int written;
  54     int physical_block;         // must be == sbBlockSize
  55     int logical_block;          // must be <= physical_block
  56     int blocks_in_map;
  57     int maximum_in_map;
  58     unsigned long media_size;   // in logical_blocks
  59 };
  60 typedef struct partition_map_header partition_map_header;
  61
  62 struct partition_map {
  63     struct partition_map * next_on_disk;
  64     struct partition_map * prev_on_disk;
  65     struct partition_map * next_by_base;
  66     struct partition_map * prev_by_base;
  67     long disk_address;
  68     struct partition_map_header * the_map;
  69     int contains_driver;
  70     DPME *data;
  71     int HFS_kind;
  72     char *HFS_name;
  73 };
  74 typedef struct partition_map partition_map;
  75
  76 /* Identifies the HFS kind. */
  77 enum {
  78     kHFS_not       =   0,       // ' '
  79     kHFS_std       =   1,       // 'h'
  80     kHFS_embed     =   2,       // 'e'
  81     kHFS_plus      =   3        // '+'
  82 };
  83
  84
  85 //
  86 // Global Constants
  87 //
  88 extern const char * kFreeType;
  89 extern const char * kMapType;
  90 extern const char * kUnixType;
  91 extern const char * kHFSType;
  92 extern const char * kFreeName;
  93 extern const char * kPatchType;
  94
  95
  96 //
  97 // Global Variables
  98 //
  99 extern int rflag;
 100 extern int interactive;
 101 extern int dflag;
 102
 103
 104 //
 105 // Forward declarations
 106 //
 107 int add_partition_to_map(const char *name, const char *dptype, u32 base, u32 length, partition_map_header *map);
 108 void close_partition_map(partition_map_header *map);
 109 partition_map_header* create_partition_map(char *name, partition_map_header *oldmap);
 110 void delete_partition_from_map(partition_map *entry);
 111 partition_map* find_entry_by_disk_address(long, partition_map_header *);
 112 partition_map* find_entry_by_type(const char *type_name, partition_map_header *map);
 113 partition_map* find_entry_by_base(u32 base, partition_map_header *map);
 114 partition_map_header* init_partition_map(char *name, partition_map_header* oldmap);
 115 void move_entry_in_map(long, long, partition_map_header *);
 116 partition_map_header* open_partition_map(char *name, int *valid_file, int ask_logical_size);
 117 void resize_map(unsigned long new_size, partition_map_header *map);
 118 void write_partition_map(partition_map_header *map);
 119 void bzb_init_slice(BZB *bp, int slice);
 120 void dpme_init_flags(DPME *data);
 121
 122 #endif /* __partition_map__ */