patch-2.3.2 linux/include/linux/efs_vh.h

• Lines: 71
• Date: Thu May 13 23:50:15 1999
• Orig file: v2.3.1/linux/include/linux/efs_vh.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.1/linux/include/linux/efs_vh.h linux/include/linux/efs_vh.h
@@ -0,0 +1,70 @@
+/*
+ * efs_vh.h
+ *
+ * Copyright (c) 1999 Al Smith
+ *
+ * Portions derived from IRIX header files (c) 1985 MIPS Computer Systems, Inc.
+ */
+
+#ifndef __EFS_VH_H__
+#define __EFS_VH_H__
+
+#define VHMAGIC		0xbe5a941	/* volume header magic number */
+#define NPARTAB		16		/* 16 unix partitions */
+#define NVDIR		15		/* max of 15 directory entries */
+#define BFNAMESIZE	16		/* max 16 chars in boot file name */
+#define VDNAMESIZE	8
+
+struct volume_directory {
+	char	vd_name[VDNAMESIZE];	/* name */
+	int	vd_lbn;			/* logical block number */
+	int	vd_nbytes;		/* file length in bytes */
+};
+
+struct partition_table {	/* one per logical partition */
+	int	pt_nblks;	/* # of logical blks in partition */
+	int	pt_firstlbn;	/* first lbn of partition */
+	int	pt_type;	/* use of partition */
+};
+
+struct volume_header {
+	int	vh_magic;			/* identifies volume header */
+	short	vh_rootpt;			/* root partition number */
+	short	vh_swappt;			/* swap partition number */
+	char	vh_bootfile[BFNAMESIZE];	/* name of file to boot */
+	char	pad[48];			/* device param space */
+	struct volume_directory vh_vd[NVDIR];	/* other vol hdr contents */
+	struct partition_table  vh_pt[NPARTAB];	/* device partition layout */
+	int	vh_csum;			/* volume header checksum */
+	int	vh_fill;			/* fill out to 512 bytes */
+};
+
+/* partition type sysv is used for EFS format CD-ROM partitions */
+#define SGI_SYSV	0x05
+#define SGI_EFS		0x07
+#define IS_EFS(x)	(((x) == SGI_EFS) || ((x) == SGI_SYSV))
+
+struct pt_types {
+	int	pt_type;
+	char	*pt_name;
+} sgi_pt_types[] = {
+	{0x00,		"SGI vh"},
+	{0x01,		"SGI trkrepl"},
+	{0x02,		"SGI secrepl"},
+	{0x03,		"SGI raw"},
+	{0x04,		"SGI bsd"},
+	{SGI_SYSV,	"SGI sysv"},
+	{0x06,		"SGI vol"},
+	{SGI_EFS,	"SGI efs"},
+	{0x08,		"SGI lv"},
+	{0x09,		"SGI rlv"},
+	{0x0A,		"SGI xfs"},
+	{0x0B,		"SGI xfslog"},
+	{0x0C,		"SGI xlv"},
+	{0x82,		"Linux swap"},
+	{0x83,		"Linux native"},
+	{0,		NULL}
+};
+
+#endif /* __EFS_VH_H__ */
+