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      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     uint32_t 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     int32_t 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, uint32_t base, uint32_t 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(int32_t, 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(uint32_t base, partition_map_header *map);
    114 partition_map_header* init_partition_map(char *name, partition_map_header* oldmap);
    115 void move_entry_in_map(int32_t, int32_t, partition_map_header *);
    116 partition_map_header* open_partition_map(char *name, int *valid_file, int ask_logical_size);
    117 void resize_map(uint32_t 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__ */
    123