Re-apply change 306811 or alternatively, revert change 307385.

1 files changed, 84 insertions, 0 deletions

diff --git a/sys/sys/disk/mbr.h b/sys/sys/disk/mbr.h
new file mode 100644
index 000000000000..33d1fc577dd2
--- /dev/null
+++ b/sys/sys/disk/mbr.h
@@ -0,0 +1,84 @@
+/*-
+ * Copyright (c) 1987, 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)disklabel.h	8.2 (Berkeley) 7/10/94
+ * $FreeBSD$
+ */
+
+#ifndef _SYS_DISK_MBR_H_
+#define	_SYS_DISK_MBR_H_
+
+#define	DOSBBSECTOR	0	/* DOS boot block relative sector number */
+#define	DOSDSNOFF	440	/* WinNT/2K/XP Drive Serial Number offset */
+#define	DOSPARTOFF	446
+#define	DOSPARTSIZE	16
+#define	NDOSPART	4
+#define	NEXTDOSPART	32
+#define	DOSMAGICOFFSET	510
+#define	DOSMAGIC	0xAA55
+
+#define	DOSPTYP_EXT	0x05	/* DOS extended partition */
+#define	DOSPTYP_FAT16	0x06	/* FAT16 partition */
+#define	DOSPTYP_NTFS	0x07	/* NTFS partition */
+#define	DOSPTYP_FAT32	0x0b	/* FAT32 partition */
+#define	DOSPTYP_EXTLBA	0x0f	/* DOS extended partition */
+#define	DOSPTYP_PPCBOOT	0x41	/* PReP/CHRP boot partition */
+#define	DOSPTYP_LDM	0x42	/* Win2k dynamic extended partition */
+#define	DOSPTYP_LINSWP	0x82	/* Linux swap partition */
+#define	DOSPTYP_LINUX	0x83	/* Linux partition */
+#define	DOSPTYP_LINLVM	0x8e	/* Linux LVM partition */
+#define	DOSPTYP_386BSD	0xa5	/* 386BSD partition type */
+#define	DOSPTYP_APPLE_UFS	0xa8	/* Apple Mac OS X boot */
+#define	DOSPTYP_APPLE_BOOT	0xab	/* Apple Mac OS X UFS */
+#define	DOSPTYP_HFS	0xaf	/* HFS/HFS+ partition type */
+#define	DOSPTYP_PMBR	0xee	/* GPT Protective MBR */
+#define	DOSPTYP_EFI	0xef	/* EFI FAT parition */
+#define	DOSPTYP_VMFS	0xfb	/* VMware VMFS partition */
+#define	DOSPTYP_VMKDIAG	0xfc	/* VMware vmkDiagnostic partition */
+#define	DOSPTYP_LINRAID	0xfd	/* Linux raid partition */
+
+struct dos_partition {
+	unsigned char	dp_flag;	/* bootstrap flags */
+	unsigned char	dp_shd;		/* starting head */
+	unsigned char	dp_ssect;	/* starting sector */
+	unsigned char	dp_scyl;	/* starting cylinder */
+	unsigned char	dp_typ;		/* partition type */
+	unsigned char	dp_ehd;		/* end head */
+	unsigned char	dp_esect;	/* end sector */
+	unsigned char	dp_ecyl;	/* end cylinder */
+	uint32_t	dp_start;	/* absolute starting sector number */
+	uint32_t	dp_size;	/* partition size in sectors */
+};
+#ifdef CTASSERT
+CTASSERT(sizeof (struct dos_partition) == DOSPARTSIZE);
+#endif
+
+#define	DPSECT(s) ((s) & 0x3f)		/* isolate relevant bits of sector */
+#define	DPCYL(c, s) ((c) + (((s) & 0xc0)<<2)) /* and those that are cylinder */
+
+#endif /* !_SYS_DISK_MBR_H_ */