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/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@login.dknet.dk> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*
* $Id: libdisk.h,v 1.2 1995/04/29 01:55:23 phk Exp $
*
*/
typedef enum {whole, foo, fat, freebsd, extended, part, unused, reserved} chunk_e;
#define CHAR_N static char *chunk_n[] = { \
"whole","foo","fat","freebsd","extended","part","unused","reserved",0};
struct disk {
char *name;
u_long flags;
# define DISK_ON_TRACK 1
# define DISK_REAL_GEOM 2
u_long real_cyl;
u_long real_hd;
u_long real_sect;
u_long bios_cyl;
u_long bios_hd;
u_long bios_sect;
struct chunk *chunks;
};
struct chunk {
struct chunk *next;
struct chunk *part;
u_long offset;
u_long size;
u_long end;
char *name;
chunk_e type;
int subtype;
# define SUBTYPE_BSD_FS 1
# define SUBTYPE_BSD_SWAP 2
# define SUBTYPE_BSD_UNUSED 3
u_long flags;
# define CHUNK_PAST_1024 1
/* this chunk cannot be booted from */
# define CHUNK_BSD_COMPAT 2
/* this chunk is in the BSD-compatibility, and has a
* short name too, ie wd0s4f -> wd0f
*/
# define CHUNK_BAD144 4
/* this chunk has bad144 mapping */
# define CHUNK_ALIGN 8
};
struct disk *
Open_Disk(char *devname);
/* Will open the named disk, and return populated tree.
*/
struct disk *
Clone_Disk(struct disk *disk);
/* Clone a copy of a tree. Useful for "Undo" functionality
*/
void
Free_Disk(struct disk *disk);
/* Free a tree made with Open_Disk() or Clone_Disk()
*/
void
Debug_Disk(struct disk *disk);
/* Print the content of the tree to stdout
*/
struct disk *
Set_Phys_Geom(struct disk *disk, u_long cyl, u_long heads, u_long sects);
/* Use a different physical geometry. Makes sense for ST506 disks only.
* The tree returned is read from the disk, using this geometry.
*/
void
Set_Bios_Geom(struct disk *disk, u_long cyl, u_long heads, u_long sects);
/* Set the geometry the bios uses.
*/
int
Delete_Chunk(struct disk *disk, struct chunk *);
/* Free a chunk of disk_space
*/
void
Collapse_Disk(struct disk *disk);
/* Experimental, do not use.
*/
int
Collapse_Chunk(struct disk *disk, struct chunk *chunk);
/* Experimental, do not use.
*/
int
Create_Chunk(struct disk *disk, u_long offset, u_long size, chunk_e type, int subtype, u_long flags);
/* Create a chunk with the specified paramters
*/
void
All_FreeBSD(struct disk *d);
/* Make one FreeBSD chunk covering the entire disk
*/
char *
CheckRules(struct disk *);
/* Return char* to warnings about broken design rules in this disklayout
*/
/*
* Implementation details >>> DO NOT USE <<<
*/
struct disk *Int_Open_Disk(char *devname, u_long maxsize);
void Debug_Chunk(struct chunk *);
void Free_Chunk(struct chunk *);
struct chunk * Clone_Chunk(struct chunk *);
int Add_Chunk(struct disk *, u_long , u_long , char *, chunk_e, int , u_long);
void Bios_Limit_Chunk(struct chunk *, u_long);
void * read_block(int, daddr_t );
struct disklabel * read_disklabel(int, daddr_t);
u_short dkcksum(struct disklabel *);
int Aligned(struct disk *d, u_long offset);
u_long Next_Aligned(struct disk *d, u_long offset);
u_long Prev_Aligned(struct disk *d, u_long offset);
struct chunk * Find_Mother_Chunk(struct chunk *, u_long , u_long , chunk_e);
#define dprintf printf
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