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