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/* $OpenBSD: partition_map.h,v 1.42 2016/01/31 23:00:11 krw Exp $ */
/*
* partition_map.h - partition map routines
*
* Written by Eryk Vershen
*/
/*
* Copyright 1996,1998 by Apple Computer, Inc.
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both the copyright notice and this permission notice appear in
* supporting documentation.
*
* APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __partition_map__
#define __partition_map__
#define BLOCK0_SIGNATURE 0x4552 /* 'ER' */
#define DPME_SIGNATURE 0x504D /* 'PM' */
#define DPISTRLEN 32
struct ddmap {
uint32_t ddBlock; /* 1st driver's starting sbBlkSize block */
uint16_t ddSize; /* size of 1st driver (512-byte blks) */
uint16_t ddType; /* system type (1 for Mac+) */
};
struct entry;
struct partition_map {
LIST_HEAD(, entry) disk_order;
LIST_HEAD(, entry) base_order;
char *name;
int fd;
int changed;
int blocks_in_map;
int maximum_in_map;
unsigned long media_size; /* in physical blocks */
/* On-disk block 0 data. */
uint16_t sbSig; /* "ER" */
uint16_t sbBlkSize; /* physical block size of device */
uint32_t sbBlkCount; /* # of physical blocks on device */
uint16_t sbDevType; /* device type */
uint16_t sbDevId; /* device id */
uint32_t sbData; /* not used */
uint16_t sbDrvrCount; /* driver descriptor count */
struct ddmap sbDDMap[8]; /* driver descriptor map*/
uint8_t sbReserved[430];
};
struct entry {
LIST_ENTRY(entry) disk_entry;
LIST_ENTRY(entry) base_entry;
struct partition_map *the_map;
long disk_address;
/* On-disk dpme block data.*/
uint16_t dpme_signature; /* "PM" */
uint8_t dpme_reserved_1[2];
uint32_t dpme_map_entries; /* # of partition entries */
uint32_t dpme_pblock_start; /* physical block start of partition */
uint32_t dpme_pblocks; /* physical block count of partition */
char dpme_name[DPISTRLEN+1]; /* name of partition + NUL */
char dpme_type[DPISTRLEN+1]; /* type of partition + NUL */
uint32_t dpme_lblock_start; /* logical block start of partition */
uint32_t dpme_lblocks; /* logical block count of partition */
uint32_t dpme_flags;
#define DPME_OS_SPECIFIC_1 (1<<8)
#define DPME_OS_SPECIFIC_2 (1<<7)
#define DPME_OS_PIC_CODE (1<<6)
#define DPME_WRITABLE (1<<5)
#define DPME_READABLE (1<<4)
#define DPME_BOOTABLE (1<<3)
#define DPME_IN_USE (1<<2)
#define DPME_ALLOCATED (1<<1)
#define DPME_VALID (1<<0)
uint32_t dpme_boot_block; /* logical block start of boot code */
uint32_t dpme_boot_bytes; /* byte count of boot code */
uint16_t dpme_load_addr; /* memory address of boot code */
uint8_t dpme_reserved_2[4];
uint32_t dpme_goto_addr; /* memory jump address of boot code */
uint8_t dpme_reserved_3[4];
uint32_t dpme_checksum; /* of the boot code. */
char dpme_processor_id[17]; /* processor type + NUL */
uint8_t dpme_reserved_4[376];
};
extern const char *kFreeType;
extern const char *kMapType;
extern const char *kUnixType;
extern const char *kHFSType;
extern int lflag;
extern int rflag;
struct partition_map *create_partition_map(int, char *, uint64_t, uint32_t);
struct partition_map *open_partition_map(int, char *, uint64_t, uint32_t);
struct entry *find_entry_by_disk_address(long, struct partition_map *);
struct entry *find_entry_by_type(const char *, struct partition_map *);
struct entry *find_entry_by_base(uint32_t, struct partition_map *);
int add_partition_to_map(const char *, const char *, uint32_t, uint32_t,
struct partition_map *);
int contains_driver(struct entry *);
void free_partition_map(struct partition_map *);
void delete_partition_from_map(struct entry *);
void move_entry_in_map(long, long, struct partition_map *);
void resize_map(long new_size, struct partition_map *);
void write_partition_map(struct partition_map *);
void dpme_init_flags(struct entry *);
#endif /* __partition_map__ */
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