1 files changed, 120 insertions, 0 deletions
diff --git a/fs/freevxfs/vxfs_olt.h b/fs/freevxfs/vxfs_olt.h
new file mode 100644
index 000000000..53afba08d
--- /dev/null
+++ b/fs/freevxfs/vxfs_olt.h
@@ -0,0 +1,120 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ */
+#ifndef _VXFS_OLT_H_
+#define _VXFS_OLT_H_
+
+/*
+ * Veritas filesystem driver - Object Location Table data structures.
+ *
+ * This file contains definitions for the Object Location Table used
+ * by the Veritas Filesystem version 2 and newer.
+ */
+
+
+/*
+ * OLT magic number (vxfs_olt->olt_magic).
+ */
+#define VXFS_OLT_MAGIC		0xa504FCF5
+
+/*
+ * VxFS OLT entry types.
+ */
+enum {
+	VXFS_OLT_FREE	= 1,
+	VXFS_OLT_FSHEAD	= 2,
+	VXFS_OLT_CUT	= 3,
+	VXFS_OLT_ILIST	= 4,
+	VXFS_OLT_DEV	= 5,
+	VXFS_OLT_SB	= 6
+};
+
+/*
+ * VxFS OLT header.
+ *
+ * The Object Location Table header is placed at the beginning of each
+ * OLT extent.  It is used to fing certain filesystem-wide metadata, e.g.
+ * the initial inode list, the fileset header or the device configuration.
+ */
+struct vxfs_olt {
+	__fs32		olt_magic;	/* magic number			*/
+	__fs32		olt_size;	/* size of this entry		*/
+	__fs32		olt_checksum;	/* checksum of extent		*/
+	__u32		__unused1;	/* ???				*/
+	__fs32		olt_mtime;	/* time of last mod. (sec)	*/
+	__fs32		olt_mutime;	/* time of last mod. (usec)	*/
+	__fs32		olt_totfree;	/* free space in OLT extent	*/
+	__fs32		olt_extents[2];	/* addr of this extent, replica	*/
+	__fs32		olt_esize;	/* size of this extent		*/
+	__fs32		olt_next[2];    /* addr of next extent, replica	*/
+	__fs32		olt_nsize;	/* size of next extent		*/
+	__u32		__unused2;	/* align to 8 byte boundary	*/
+};
+
+/*
+ * VxFS common OLT entry (on disk).
+ */
+struct vxfs_oltcommon {
+	__fs32		olt_type;	/* type of this record		*/
+	__fs32		olt_size;	/* size of this record		*/
+};
+
+/*
+ * VxFS free OLT entry (on disk).
+ */
+struct vxfs_oltfree {
+	__fs32		olt_type;	/* type of this record		*/
+	__fs32		olt_fsize;	/* size of this free record	*/
+};
+
+/*
+ * VxFS initial-inode list (on disk).
+ */
+struct vxfs_oltilist {
+	__fs32	olt_type;	/* type of this record		*/
+	__fs32	olt_size;	/* size of this record		*/
+	__fs32		olt_iext[2];	/* initial inode list, replica	*/
+};
+
+/*
+ * Current Usage Table 
+ */
+struct vxfs_oltcut {
+	__fs32		olt_type;	/* type of this record		*/
+	__fs32		olt_size;	/* size of this record		*/
+	__fs32		olt_cutino;	/* inode of current usage table	*/
+	__u8		__pad;		/* unused, 8 byte align		*/
+};
+
+/*
+ * Inodes containing Superblock, Intent log and OLTs 
+ */
+struct vxfs_oltsb {
+	__fs32		olt_type;	/* type of this record		*/
+	__fs32		olt_size;	/* size of this record		*/
+	__fs32		olt_sbino;	/* inode of superblock file	*/
+	__u32		__unused1;	/* ???				*/
+	__fs32		olt_logino[2];	/* inode of log file,replica	*/
+	__fs32		olt_oltino[2];	/* inode of OLT, replica	*/
+};
+
+/*
+ * Inode containing device configuration + it's replica 
+ */
+struct vxfs_oltdev {
+	__fs32		olt_type;	/* type of this record		*/
+	__fs32		olt_size;	/* size of this record		*/
+	__fs32		olt_devino[2];	/* inode of device config files	*/
+};
+
+/*
+ * Fileset header 
+ */
+struct vxfs_oltfshead {
+	__fs32		olt_type;	/* type number			*/
+	__fs32		olt_size;	/* size of this record		*/
+	__fs32		olt_fsino[2];   /* inodes of fileset header	*/
+};
+
+#endif /* _VXFS_OLT_H_ */