This is a revision 0.00 of the backend stuff for the fdisk/disklabel stuff

in the new sysinstall.  If you want to give a helping hand, then send email
to phk@FreeBSD.ORG.  DO NOT COMMIT TO THIS DIRECTORY!

1 files changed, 75 insertions, 0 deletions

diff --git a/lib/libdisk/libdisk.h b/lib/libdisk/libdisk.h
new file mode 100644
index 0000000..04c5a2f
--- /dev/null
+++ b/lib/libdisk/libdisk.h
@@ -0,0 +1,75 @@
+
+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"};
+
+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);
+void Free_Disk(struct disk *disk);
+void Debug_Disk(struct disk *disk);
+struct disk *Clone_Disk(struct disk *disk);
+
+struct disk *Set_Phys_Geom(struct disk *disk, u_long cyl, u_long heads, u_long sects);
+void Set_Bios_Geom(struct disk *disk, u_long cyl, u_long heads, u_long sects);
+
+int Delete_Chunk(struct disk *disk, u_long offset, u_long end, chunk_e type);
+void Collapse_Disk(struct disk *disk);
+int Collapse_Chunk(struct disk *disk, struct chunk *chunk);
+
+int Create_Chunk(struct disk *disk, u_long offset, u_long size, chunk_e type, int subtype, u_long flags);
+
+/* Implementation details */
+
+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