76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
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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 short name
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* 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 *Open_Disk(char *devname);
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void Free_Disk(struct disk *disk);
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void Debug_Disk(struct disk *disk);
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struct disk *Clone_Disk(struct disk *disk);
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struct disk *Set_Phys_Geom(struct disk *disk, u_long cyl, u_long heads, u_long sects);
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void Set_Bios_Geom(struct disk *disk, u_long cyl, u_long heads, u_long sects);
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int Delete_Chunk(struct disk *disk, u_long offset, u_long end, chunk_e type);
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void Collapse_Disk(struct disk *disk);
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int Collapse_Chunk(struct disk *disk, struct chunk *chunk);
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int Create_Chunk(struct disk *disk, u_long offset, u_long size, chunk_e type, int subtype, u_long flags);
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/* Implementation details */
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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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