initial import of NetBSD tree

1 files changed, 85 insertions, 0 deletions

diff --git a/sys/msdosfs/bootsect.h b/sys/msdosfs/bootsect.h
new file mode 100644
index 00000000000..4c31483fdfd
--- /dev/null
+++ b/sys/msdosfs/bootsect.h
@@ -0,0 +1,85 @@
+/*	$NetBSD: bootsect.h,v 1.7 1995/07/24 06:36:23 leo Exp $	*/
+
+/*
+ * Written by Paul Popelka (paulp@uts.amdahl.com)
+ * 
+ * You can do anything you want with this software, just don't say you wrote
+ * it, and don't remove this notice.
+ * 
+ * This software is provided "as is".
+ * 
+ * The author supplies this software to be publicly redistributed on the
+ * understanding that the author is not responsible for the correct
+ * functioning of this software in any circumstances and is not liable for
+ * any damages caused by this software.
+ * 
+ * October 1992
+ */
+
+/*
+ * Format of a boot sector.  This is the first sector on a DOS floppy disk
+ * or the fist sector of a partition on a hard disk.  But, it is not the
+ * first sector of a partitioned hard disk.
+ */
+struct bootsector33 {
+	u_int8_t	bsJump[3];		/* jump inst E9xxxx or EBxx90 */
+	int8_t		bsOemName[8];		/* OEM name and version */
+	int8_t		bsBPB[19];		/* BIOS parameter block */
+	int8_t		bsDriveNumber;		/* drive number (0x80) */
+	int8_t		bsBootCode[479];	/* pad so struct is 512b */
+	u_int16_t	bsBootSectSig;
+#define	BOOTSIG	0xaa55
+};
+
+struct bootsector50 {
+	u_int8_t	bsJump[3];		/* jump inst E9xxxx or EBxx90 */
+	int8_t		bsOemName[8];		/* OEM name and version */
+	int8_t		bsBPB[25];		/* BIOS parameter block */
+	int8_t		bsDriveNumber;		/* drive number (0x80) */
+	int8_t		bsReserved1;		/* reserved */
+	int8_t		bsBootSignature;	/* ext. boot signature (0x29) */
+#define	EXBOOTSIG	0x29
+	int8_t		bsVolumeID[4];		/* volume ID number */
+	int8_t		bsVolumeLabel[11];	/* volume label */
+	int8_t		bsFileSysType[8];	/* fs type (FAT12 or FAT16) */
+	int8_t		bsBootCode[448];	/* pad so structure is 512b */
+	u_int16_t	bsBootSectSig;
+#define	BOOTSIG	0xaa55
+};
+#ifdef	atari
+/*
+ * The boot sector on a gemdos fs is a little bit different from the msdos fs
+ * format. Currently there is no need to declare a seperate structure, the
+ * bootsector33 struct will do.
+ */
+#if 0
+struct bootsec_atari {
+	u_int8_t	bsBranch[2];		/* branch inst if auto-boot	*/
+	int8_t		bsFiller[6];		/* anything or nothing		*/
+	int8_t		bsSerial[3];		/* serial no. for mediachange	*/
+	int8_t		bsBPB[19];		/* BIOS parameter block		*/
+	int8_t		bsBootCode[482];	/* pad so struct is 512b	*/
+};
+#endif
+#endif /* atari */
+
+union bootsector {
+	struct bootsector33 bs33;
+	struct bootsector50 bs50;
+};
+
+/*
+ * Shorthand for fields in the bpb.
+ */
+#define	bsBytesPerSec	bsBPB.bpbBytesPerSec
+#define	bsSectPerClust	bsBPB.bpbSectPerClust
+#define	bsResSectors	bsBPB.bpbResSectors
+#define	bsFATS		bsBPB.bpbFATS
+#define	bsRootDirEnts	bsBPB.bpbRootDirEnts
+#define	bsSectors	bsBPB.bpbSectors
+#define	bsMedia		bsBPB.bpbMedia
+#define	bsFATsecs	bsBPB.bpbFATsecs
+#define	bsSectPerTrack	bsBPB.bpbSectPerTrack
+#define	bsHeads		bsBPB.bpbHeads
+#define	bsHiddenSecs	bsBPB.bpbHiddenSecs
+#define	bsHugeSectors	bsBPB.bpbHugeSectors