/*
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/*
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* linux/include/linux/ufs_fs.h
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* linux/include/linux/ufs_fs.h
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*
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*
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* Copyright (C) 1996
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* Copyright (C) 1996
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* Adrian Rodriguez (adrian@franklins-tower.rutgers.edu)
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* Adrian Rodriguez (adrian@franklins-tower.rutgers.edu)
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* Laboratory for Computer Science Research Computing Facility
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* Laboratory for Computer Science Research Computing Facility
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* Rutgers, The State University of New Jersey
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* Rutgers, The State University of New Jersey
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*
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*
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* $Id: ufs_fs.h,v 1.1 2005-12-20 11:32:27 jcastillo Exp $
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* $Id: ufs_fs.h,v 1.1 2005-12-20 11:32:27 jcastillo Exp $
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*
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*
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*/
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*/
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#ifndef __LINUX_UFS_FS_H
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#ifndef __LINUX_UFS_FS_H
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#define __LINUX_UFS_FS_H
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#define __LINUX_UFS_FS_H
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#include <linux/types.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/kernel.h>
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#include <linux/time.h>
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#include <linux/time.h>
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#include <linux/stat.h>
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#include <linux/stat.h>
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#define UFS_BBLOCK 0
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#define UFS_BBLOCK 0
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#define UFS_BBSIZE 8192
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#define UFS_BBSIZE 8192
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#define UFS_SBLOCK 8192
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#define UFS_SBLOCK 8192
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#define UFS_SBSIZE 8192
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#define UFS_SBSIZE 8192
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#define UFS_MAGIC 0x00011954
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#define UFS_MAGIC 0x00011954
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#define UFS_FSIZE 1024
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#define UFS_FSIZE 1024
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#define UFS_BSIZE 8192
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#define UFS_BSIZE 8192
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#define UFS_NDADDR 12
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#define UFS_NDADDR 12
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#define UFS_NINDIR 3
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#define UFS_NINDIR 3
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#define UFS_ROOTINO 2
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#define UFS_ROOTINO 2
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#define UFS_USEEFT ((__u16)65535)
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#define UFS_USEEFT ((__u16)65535)
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#define UFS_FSOK 0x7c269d38
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#define UFS_FSOK 0x7c269d38
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#define UFS_FSACTIVE ((char)0x00)
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#define UFS_FSACTIVE ((char)0x00)
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#define UFS_FSCLEAN ((char)0x01)
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#define UFS_FSCLEAN ((char)0x01)
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#define UFS_FSSTABLE ((char)0x02)
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#define UFS_FSSTABLE ((char)0x02)
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#define UFS_FSBAD ((char)0xff)
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#define UFS_FSBAD ((char)0xff)
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/* Flags for ufs_sb_info */
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/* Flags for ufs_sb_info */
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#define UFS_DEBUG 0x00000001
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#define UFS_DEBUG 0x00000001
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#define UFS_DEBUG_INODE 0x00000002
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#define UFS_DEBUG_INODE 0x00000002
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#define UFS_DEBUG_NAMEI 0x00000004
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#define UFS_DEBUG_NAMEI 0x00000004
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#define UFS_DEBUG_LINKS 0x00000008
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#define UFS_DEBUG_LINKS 0x00000008
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/* Test if the inode number is valid. */
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/* Test if the inode number is valid. */
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#define ufs_ino_ok(inode) ((inode->i_ino < 2) && \
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#define ufs_ino_ok(inode) ((inode->i_ino < 2) && \
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(inode->i_ino > (inode->i_sb->u.ufs_sb.s_ncg * inode->i_sb->u.ufs_sb.s_ipg - 1)))
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(inode->i_ino > (inode->i_sb->u.ufs_sb.s_ncg * inode->i_sb->u.ufs_sb.s_ipg - 1)))
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/* Convert (sb,cg) to the first physical block number for that cg. */
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/* Convert (sb,cg) to the first physical block number for that cg. */
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#define ufs_cgstart(sb, cg) \
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#define ufs_cgstart(sb, cg) \
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(((sb)->u.ufs_sb.s_fpg * (cg)) + (sb)->u.ufs_sb.s_cgoffset * ((cg) & ~((sb)->u.ufs_sb.s_cgmask)))
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(((sb)->u.ufs_sb.s_fpg * (cg)) + (sb)->u.ufs_sb.s_cgoffset * ((cg) & ~((sb)->u.ufs_sb.s_cgmask)))
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/* Convert (sb,cg) to the first phys. block number for inodes in that cg. */
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/* Convert (sb,cg) to the first phys. block number for inodes in that cg. */
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#define ufs_cgimin(sb, cg) (ufs_cgstart((sb), (cg)) + (sb)->u.ufs_sb.s_iblkno)
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#define ufs_cgimin(sb, cg) (ufs_cgstart((sb), (cg)) + (sb)->u.ufs_sb.s_iblkno)
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#define ufs_cgdmin(sb, cg) (ufs_cgstart((sb), (cg)) + (sb)->u.ufs_sb.s_dblkno)
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#define ufs_cgdmin(sb, cg) (ufs_cgstart((sb), (cg)) + (sb)->u.ufs_sb.s_dblkno)
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/* Convert an inode number to a cg number. */
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/* Convert an inode number to a cg number. */
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/* XXX - this can be optimized if s_ipg is a power of 2. */
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/* XXX - this can be optimized if s_ipg is a power of 2. */
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#define ufs_ino2cg(inode) ((inode)->i_ino/(inode)->i_sb->u.ufs_sb.s_ipg)
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#define ufs_ino2cg(inode) ((inode)->i_ino/(inode)->i_sb->u.ufs_sb.s_ipg)
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#define UFS_MAXNAMLEN 255
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#define UFS_MAXNAMLEN 255
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struct ufs_direct {
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struct ufs_direct {
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__u32 d_ino; /* inode number of this entry */
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__u32 d_ino; /* inode number of this entry */
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__u16 d_reclen; /* length of this entry */
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__u16 d_reclen; /* length of this entry */
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__u16 d_namlen; /* actual length of d_name */
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__u16 d_namlen; /* actual length of d_name */
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char d_name[UFS_MAXNAMLEN + 1]; /* file name */
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char d_name[UFS_MAXNAMLEN + 1]; /* file name */
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};
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};
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#define MAXMNTLEN 512
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#define MAXMNTLEN 512
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#define MAXCSBUFS 32
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#define MAXCSBUFS 32
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struct ufs_csum {
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struct ufs_csum {
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__u32 cs_ndir; /* number of directories */
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__u32 cs_ndir; /* number of directories */
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__u32 cs_nbfree; /* number of free blocks */
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__u32 cs_nbfree; /* number of free blocks */
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__u32 cs_nifree; /* number of free inodes */
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__u32 cs_nifree; /* number of free inodes */
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__u32 cs_nffree; /* number of free frags */
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__u32 cs_nffree; /* number of free frags */
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};
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};
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typedef struct _ufsquad {
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typedef struct _ufsquad {
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__u32 val[2];
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__u32 val[2];
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} ufsquad;
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} ufsquad;
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/*
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/*
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* This is the actual superblock, as it is laid out on the disk.
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* This is the actual superblock, as it is laid out on the disk.
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*/
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*/
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struct ufs_superblock {
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struct ufs_superblock {
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__u32 fs_link; /* UNUSED */
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__u32 fs_link; /* UNUSED */
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__u32 fs_rlink; /* UNUSED */
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__u32 fs_rlink; /* UNUSED */
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__u32 fs_sblkno;
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__u32 fs_sblkno;
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__u32 fs_cblkno;
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__u32 fs_cblkno;
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__u32 fs_iblkno;
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__u32 fs_iblkno;
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__u32 fs_dblkno;
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__u32 fs_dblkno;
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__u32 fs_cgoffset;
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__u32 fs_cgoffset;
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__u32 fs_cgmask;
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__u32 fs_cgmask;
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time_t fs_time; /* XXX - check type */
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time_t fs_time; /* XXX - check type */
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__u32 fs_size;
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__u32 fs_size;
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__u32 fs_dsize;
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__u32 fs_dsize;
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__u32 fs_ncg;
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__u32 fs_ncg;
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__u32 fs_bsize;
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__u32 fs_bsize;
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__u32 fs_fsize;
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__u32 fs_fsize;
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__u32 fs_frag;
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__u32 fs_frag;
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__u32 fs_minfree;
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__u32 fs_minfree;
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__u32 fs_rotdelay;
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__u32 fs_rotdelay;
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__u32 fs_rps;
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__u32 fs_rps;
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__u32 fs_bmask;
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__u32 fs_bmask;
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__u32 fs_fmask;
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__u32 fs_fmask;
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__u32 fs_bshift;
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__u32 fs_bshift;
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__u32 fs_fshift;
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__u32 fs_fshift;
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__u32 fs_maxcontig;
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__u32 fs_maxcontig;
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__u32 fs_maxbpg;
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__u32 fs_maxbpg;
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__u32 fs_fragshift;
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__u32 fs_fragshift;
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__u32 fs_fsbtodb;
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__u32 fs_fsbtodb;
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__u32 fs_sbsize;
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__u32 fs_sbsize;
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__u32 fs_csmask;
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__u32 fs_csmask;
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__u32 fs_csshift;
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__u32 fs_csshift;
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__u32 fs_nindir;
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__u32 fs_nindir;
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__u32 fs_inopb;
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__u32 fs_inopb;
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__u32 fs_nspf;
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__u32 fs_nspf;
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__u32 fs_optim;
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__u32 fs_optim;
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__u32 fs_XXX1;
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__u32 fs_XXX1;
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__u32 fs_interleave;
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__u32 fs_interleave;
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__u32 fs_trackskew;
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__u32 fs_trackskew;
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__u32 fs_id[2];
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__u32 fs_id[2];
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__u32 fs_csaddr;
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__u32 fs_csaddr;
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__u32 fs_cssize;
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__u32 fs_cssize;
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__u32 fs_cgsize;
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__u32 fs_cgsize;
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__u32 fs_ntrak;
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__u32 fs_ntrak;
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__u32 fs_nsect;
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__u32 fs_nsect;
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__u32 fs_spc;
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__u32 fs_spc;
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__u32 fs_ncyl;
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__u32 fs_ncyl;
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__u32 fs_cpg;
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__u32 fs_cpg;
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__u32 fs_ipg;
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__u32 fs_ipg;
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__u32 fs_fpg;
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__u32 fs_fpg;
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struct ufs_csum fs_cstotal;
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struct ufs_csum fs_cstotal;
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__u8 fs_fmod;
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__u8 fs_fmod;
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__u8 fs_clean;
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__u8 fs_clean;
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__u8 fs_ronly;
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__u8 fs_ronly;
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__u8 fs_flags;
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__u8 fs_flags;
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__u8 fs_fsmnt[MAXMNTLEN];
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__u8 fs_fsmnt[MAXMNTLEN];
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__u32 fs_cgrotor;
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__u32 fs_cgrotor;
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struct ufs_csum * fs_csp[MAXCSBUFS];
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struct ufs_csum * fs_csp[MAXCSBUFS];
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__u32 fs_cpc;
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__u32 fs_cpc;
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__u16 fs_opostbl[16][8]; /* old rotation block list head */
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__u16 fs_opostbl[16][8]; /* old rotation block list head */
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__s32 fs_sparecon[55]; /* reserved for future constants */
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__s32 fs_sparecon[55]; /* reserved for future constants */
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__s32 fs_state; /* file system state time stamp */
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__s32 fs_state; /* file system state time stamp */
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ufsquad fs_qbmask; /* ~usb_bmask - for use with __s64 size */
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ufsquad fs_qbmask; /* ~usb_bmask - for use with __s64 size */
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ufsquad fs_qfmask; /* ~usb_fmask - for use with __s64 size */
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ufsquad fs_qfmask; /* ~usb_fmask - for use with __s64 size */
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__s32 fs_postblformat; /* format of positional layout tables */
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__s32 fs_postblformat; /* format of positional layout tables */
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__s32 fs_nrpos; /* number of rotational positions */
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__s32 fs_nrpos; /* number of rotational positions */
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__s32 fs_postbloff; /* (__s16) rotation block list head */
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__s32 fs_postbloff; /* (__s16) rotation block list head */
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__s32 fs_rotbloff; /* (__u8) blocks for each rotation */
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__s32 fs_rotbloff; /* (__u8) blocks for each rotation */
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__s32 fs_magic; /* magic number */
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__s32 fs_magic; /* magic number */
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__u8 fs_space[1]; /* list of blocks for each rotation */
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__u8 fs_space[1]; /* list of blocks for each rotation */
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};
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};
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/*
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/*
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* structure of an on-disk inode
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* structure of an on-disk inode
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*/
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*/
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struct ufs_inode {
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struct ufs_inode {
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__u16 ui_mode; /* 0x0 */
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__u16 ui_mode; /* 0x0 */
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__u16 ui_nlink; /* 0x2 */
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__u16 ui_nlink; /* 0x2 */
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__u16 ui_suid; /* 0x4 */
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__u16 ui_suid; /* 0x4 */
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__u16 ui_sgid; /* 0x6 */
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__u16 ui_sgid; /* 0x6 */
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ufsquad ui_size; /* 0x8 */ /* XXX - should be __u64 */
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ufsquad ui_size; /* 0x8 */ /* XXX - should be __u64 */
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struct timeval ui_atime; /* 0x10 */
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struct timeval ui_atime; /* 0x10 */
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struct timeval ui_mtime; /* 0x18 */
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struct timeval ui_mtime; /* 0x18 */
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struct timeval ui_ctime; /* 0x20 */
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struct timeval ui_ctime; /* 0x20 */
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__u32 ui_db[UFS_NDADDR]; /* 0x28 data blocks */
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__u32 ui_db[UFS_NDADDR]; /* 0x28 data blocks */
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__u32 ui_ib[UFS_NINDIR]; /* 0x58 indirect blocks */
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__u32 ui_ib[UFS_NINDIR]; /* 0x58 indirect blocks */
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__u32 ui_flags; /* 0x64 unused */
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__u32 ui_flags; /* 0x64 unused */
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__u32 ui_blocks; /* 0x68 blocks in use */
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__u32 ui_blocks; /* 0x68 blocks in use */
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__u32 ui_gen; /* 0x6c generation number XXX - what is this? */
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__u32 ui_gen; /* 0x6c generation number XXX - what is this? */
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__u32 ui_shadow; /* 0x70 shadow inode XXX - what is this?*/
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__u32 ui_shadow; /* 0x70 shadow inode XXX - what is this?*/
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__u32 ui_uid; /* 0x74 long EFT version of uid */
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__u32 ui_uid; /* 0x74 long EFT version of uid */
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__u32 ui_gid; /* 0x78 long EFT version of gid */
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__u32 ui_gid; /* 0x78 long EFT version of gid */
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__u32 ui_oeftflag; /* 0x7c reserved */
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__u32 ui_oeftflag; /* 0x7c reserved */
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};
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};
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extern int init_ufs_fs(void);
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extern int init_ufs_fs(void);
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#endif /* __LINUX_UFS_FS_H */
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#endif /* __LINUX_UFS_FS_H */
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/*
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/*
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* Local Variables: ***
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* Local Variables: ***
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* c-indent-level: 8 ***
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* c-indent-level: 8 ***
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* c-continued-statement-offset: 8 ***
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* c-continued-statement-offset: 8 ***
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* c-brace-offset: -8 ***
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* c-brace-offset: -8 ***
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* c-argdecl-indent: 0 ***
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* c-argdecl-indent: 0 ***
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* c-label-offset: -8 ***
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* c-label-offset: -8 ***
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* End: ***
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* End: ***
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*/
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*/
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