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Add versioning to the on disk inode which we increment on each
flush call. This is used during recovery to avoid replaying an
older copy of the inode from the log. We can do this without
versioning the filesystem as the pad space we borrowed was
always zero and will be ignored by old kernels.
Print out the new inode field

/*
 * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Further, this software is distributed without any warranty that it is
 * free of the rightful claim of any third person regarding infringement
 * or the like.  Any license provided herein, whether implied or
 * otherwise, applies only to this software file.  Patent licenses, if
 * any, provided herein do not apply to combinations of this program with
 * other software, or any other product whatsoever.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
 *
 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 * Mountain View, CA  94043, or:
 *
 * http://www.sgi.com
 *
 * For further information regarding this notice, see:
 *
 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
 */

#include <xfs/libxfs.h>
#include "command.h"
#include "type.h"
#include "faddr.h"
#include "fprint.h"
#include "field.h"
#include "inode.h"
#include "io.h"
#include "print.h"
#include "block.h"
#include "bit.h"
#include "output.h"
#include "init.h"

static int	inode_a_bmbt_count(void *obj, int startoff);
static int	inode_a_bmx_count(void *obj, int startoff);
static int	inode_a_count(void *obj, int startoff);
static int	inode_a_offset(void *obj, int startoff, int idx);
static int	inode_a_sfattr_count(void *obj, int startoff);
static int	inode_core_nlinkv2_count(void *obj, int startoff);
static int	inode_core_onlink_count(void *obj, int startoff);
static int	inode_core_projid_count(void *obj, int startoff);
static int	inode_core_nlinkv1_count(void *obj, int startoff);
static int	inode_f(int argc, char **argv);
static int	inode_u_bmbt_count(void *obj, int startoff);
static int	inode_u_bmx_count(void *obj, int startoff);
static int	inode_u_c_count(void *obj, int startoff);
static int	inode_u_dev_count(void *obj, int startoff);
static int	inode_u_muuid_count(void *obj, int startoff);
static int	inode_u_sfdir_count(void *obj, int startoff);
static int	inode_u_sfdir2_count(void *obj, int startoff);
static int	inode_u_symlink_count(void *obj, int startoff);

static const cmdinfo_t	inode_cmd =
	{ "inode", NULL, inode_f, 0, 1, 1, "[inode#]",
	  "set current inode", NULL };

const field_t	inode_hfld[] = {
	{ "", FLDT_INODE, OI(0), C1, 0, TYP_NONE },
	{ NULL }
};

#define	OFF(f)	bitize(offsetof(xfs_dinode_t, di_ ## f))
const field_t	inode_flds[] = {
	{ "core", FLDT_DINODE_CORE, OI(OFF(core)), C1, 0, TYP_NONE },
	{ "next_unlinked", FLDT_AGINO, OI(OFF(next_unlinked)), C1, 0,
	  TYP_INODE },
	{ "u", FLDT_DINODE_U, OI(OFF(u)), C1, 0, TYP_NONE },
	{ "a", FLDT_DINODE_A, inode_a_offset, inode_a_count,
	  FLD_COUNT|FLD_OFFSET, TYP_NONE },
	{ NULL }
};

#define	COFF(f)	bitize(offsetof(xfs_dinode_core_t, di_ ## f))
const field_t	inode_core_flds[] = {
	{ "magic", FLDT_UINT16X, OI(COFF(magic)), C1, 0, TYP_NONE },
	{ "mode", FLDT_UINT16O, OI(COFF(mode)), C1, 0, TYP_NONE },
	{ "version", FLDT_INT8D, OI(COFF(version)), C1, 0, TYP_NONE },
	{ "format", FLDT_DINODE_FMT, OI(COFF(format)), C1, 0, TYP_NONE },
	{ "nlinkv1", FLDT_UINT16D, OI(COFF(onlink)), inode_core_nlinkv1_count,
	  FLD_COUNT, TYP_NONE },
	{ "nlinkv2", FLDT_UINT32D, OI(COFF(nlink)), inode_core_nlinkv2_count,
	  FLD_COUNT, TYP_NONE },
	{ "onlink", FLDT_UINT16D, OI(COFF(onlink)), inode_core_onlink_count,
	  FLD_COUNT, TYP_NONE },
	{ "projid", FLDT_UINT16D, OI(COFF(projid)), inode_core_projid_count,
	  FLD_COUNT, TYP_NONE },
	{ "uid", FLDT_UINT32D, OI(COFF(uid)), C1, 0, TYP_NONE },
	{ "gid", FLDT_UINT32D, OI(COFF(gid)), C1, 0, TYP_NONE },
	{ "flushiter", FLDT_UINT16D, OI(COFF(flushiter)), C1, 0, TYP_NONE },
	{ "atime", FLDT_TIMESTAMP, OI(COFF(atime)), C1, 0, TYP_NONE },
	{ "mtime", FLDT_TIMESTAMP, OI(COFF(mtime)), C1, 0, TYP_NONE },
	{ "ctime", FLDT_TIMESTAMP, OI(COFF(ctime)), C1, 0, TYP_NONE },
	{ "size", FLDT_FSIZE, OI(COFF(size)), C1, 0, TYP_NONE },
	{ "nblocks", FLDT_DRFSBNO, OI(COFF(nblocks)), C1, 0, TYP_NONE },
	{ "extsize", FLDT_EXTLEN, OI(COFF(extsize)), C1, 0, TYP_NONE },
	{ "nextents", FLDT_EXTNUM, OI(COFF(nextents)), C1, 0, TYP_NONE },
	{ "naextents", FLDT_AEXTNUM, OI(COFF(anextents)), C1, 0, TYP_NONE },
	{ "forkoff", FLDT_UINT8D, OI(COFF(forkoff)), C1, 0, TYP_NONE },
	{ "aformat", FLDT_DINODE_FMT, OI(COFF(aformat)), C1, 0, TYP_NONE },
	{ "dmevmask", FLDT_UINT32X, OI(COFF(dmevmask)), C1, 0, TYP_NONE },
	{ "dmstate", FLDT_UINT16D, OI(COFF(dmstate)), C1, 0, TYP_NONE },
	{ "flags", FLDT_UINT16X, OI(COFF(flags)), C1, FLD_SKIPALL, TYP_NONE },
	{ "newrtbm", FLDT_UINT1,
	  OI(COFF(flags) + bitsz(__uint16_t) - XFS_DIFLAG_NEWRTBM_BIT - 1), C1,
	  0, TYP_NONE },
	{ "prealloc", FLDT_UINT1,
	  OI(COFF(flags) + bitsz(__uint16_t) - XFS_DIFLAG_PREALLOC_BIT - 1), C1,
	  0, TYP_NONE },
	{ "realtime", FLDT_UINT1,
	  OI(COFF(flags) + bitsz(__uint16_t) - XFS_DIFLAG_REALTIME_BIT - 1), C1,
	  0, TYP_NONE },
	{ "gen", FLDT_UINT32D, OI(COFF(gen)), C1, 0, TYP_NONE },
	{ NULL }
};

#define	TOFF(f)	bitize(offsetof(xfs_timestamp_t, t_ ## f))
const field_t	timestamp_flds[] = {
	{ "sec", FLDT_TIME, OI(TOFF(sec)), C1, 0, TYP_NONE },
	{ "nsec", FLDT_NSEC, OI(TOFF(nsec)), C1, 0, TYP_NONE },
	{ NULL }
};

const field_t	inode_u_flds[] = {
	{ "bmbt", FLDT_BMROOTD, 0, inode_u_bmbt_count, FLD_COUNT, TYP_NONE },
	{ "bmx", FLDT_BMAPBTDREC, 0, inode_u_bmx_count, FLD_ARRAY|FLD_COUNT,
	  TYP_NONE },
	{ "c", FLDT_CHARNS, 0, inode_u_c_count, FLD_COUNT, TYP_NONE },
	{ "dev", FLDT_DEV, 0, inode_u_dev_count, FLD_COUNT, TYP_NONE },
	{ "muuid", FLDT_UUID, 0, inode_u_muuid_count, FLD_COUNT, TYP_NONE },
	{ "sfdir", FLDT_DIRSHORT, 0, inode_u_sfdir_count, FLD_COUNT, TYP_NONE },
	{ "sfdir2", FLDT_DIR2SF, 0, inode_u_sfdir2_count, FLD_COUNT, TYP_NONE },
	{ "symlink", FLDT_CHARNS, 0, inode_u_symlink_count, FLD_COUNT,
	  TYP_NONE },
	{ NULL }
};

const field_t	inode_a_flds[] = {
	{ "bmbt", FLDT_BMROOTA, 0, inode_a_bmbt_count, FLD_COUNT, TYP_NONE },
	{ "bmx", FLDT_BMAPBTAREC, 0, inode_a_bmx_count, FLD_ARRAY|FLD_COUNT,
	  TYP_NONE },
	{ "sfattr", FLDT_ATTRSHORT, 0, inode_a_sfattr_count, FLD_COUNT,
	  TYP_NONE },
	{ NULL }
};

static const char	*dinode_fmt_name[] =
	{ "dev", "local", "extents", "btree", "uuid" };
static const int	dinode_fmt_name_size =
	sizeof(dinode_fmt_name) / sizeof(dinode_fmt_name[0]);

/*ARGSUSED*/
int
fp_dinode_fmt(
	void			*obj,
	int			bit,
	int			count,
	char			*fmtstr,
	int			size,
	int			arg,
	int			base,
	int			array)
{
	int			bitpos;
	xfs_dinode_fmt_t	f;
	int			i;

	for (i = 0, bitpos = bit; i < count; i++, bitpos += size) {
		f = (xfs_dinode_fmt_t)getbitval(obj, bitpos, size, BVSIGNED);
		if (array)
			dbprintf("%d:", i + base);
		if (f < 0 || f >= dinode_fmt_name_size)
			dbprintf("%d", (int)f);
		else
			dbprintf("%d (%s)", (int)f, dinode_fmt_name[(int)f]);
		if (i < count - 1)
			dbprintf(" ");
	}
	return 1;
}

static int
inode_a_bmbt_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	if (!XFS_DFORK_Q_ARCH(dip, ARCH_CONVERT))
		return 0;
	ASSERT((char *)XFS_DFORK_APTR_ARCH(dip, ARCH_CONVERT) - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_aformat, ARCH_CONVERT) == XFS_DINODE_FMT_BTREE;
}

static int
inode_a_bmx_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	if (!XFS_DFORK_Q_ARCH(dip, ARCH_CONVERT))
		return 0;
	ASSERT((char *)XFS_DFORK_APTR_ARCH(dip, ARCH_CONVERT) - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_aformat, ARCH_CONVERT) == XFS_DINODE_FMT_EXTENTS ?
		INT_GET(dip->di_core.di_anextents, ARCH_CONVERT) : 0;
}

static int
inode_a_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(startoff == 0);
	dip = obj;
	return XFS_DFORK_Q_ARCH(dip, ARCH_CONVERT);
}

static int
inode_a_offset(
	void		*obj,
	int		startoff,
	int		idx)
{
	xfs_dinode_t	*dip;

	ASSERT(startoff == 0);
	ASSERT(idx == 0);
	dip = obj;
	ASSERT(XFS_DFORK_Q_ARCH(dip, ARCH_CONVERT));
	return bitize((int)((char *)XFS_DFORK_APTR_ARCH(dip, ARCH_CONVERT) - (char *)dip));
}

static int
inode_a_sfattr_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	if (!XFS_DFORK_Q_ARCH(dip, ARCH_CONVERT))
		return 0;
	ASSERT((char *)XFS_DFORK_APTR_ARCH(dip, ARCH_CONVERT) - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_aformat, ARCH_CONVERT) == XFS_DINODE_FMT_LOCAL;
}

int
inode_a_size(
	void			*obj,
	int			startoff,
	int			idx)
{
	xfs_attr_shortform_t	*asf;
	xfs_dinode_t		*dip;

	ASSERT(startoff == 0);
	ASSERT(idx == 0);
	dip = obj;
	switch (INT_GET(dip->di_core.di_aformat, ARCH_CONVERT)) {
	case XFS_DINODE_FMT_LOCAL:
		asf = (xfs_attr_shortform_t *)XFS_DFORK_APTR_ARCH(dip, ARCH_CONVERT);
		return bitize((int)asf->hdr.totsize);
	case XFS_DINODE_FMT_EXTENTS:
		return (int)(INT_GET(dip->di_core.di_anextents, ARCH_CONVERT) * bitsz(xfs_bmbt_rec_t));
	case XFS_DINODE_FMT_BTREE:
		return bitize((int)XFS_DFORK_ASIZE_ARCH(dip, mp, ARCH_CONVERT));
	default:
		return 0;
	}
}

static int
inode_core_nlinkv1_count(
	void			*obj,
	int			startoff)
{
	xfs_dinode_core_t	*dic;

	ASSERT(startoff == 0);
	ASSERT(obj == iocur_top->data);
	dic = obj;
	return dic->di_version == XFS_DINODE_VERSION_1;
}

static int
inode_core_nlinkv2_count(
	void			*obj,
	int			startoff)
{
	xfs_dinode_core_t	*dic;

	ASSERT(startoff == 0);
	ASSERT(obj == iocur_top->data);
	dic = obj;
	return dic->di_version == XFS_DINODE_VERSION_2;
}

static int
inode_core_onlink_count(
	void			*obj,
	int			startoff)
{
	xfs_dinode_core_t	*dic;

	ASSERT(startoff == 0);
	ASSERT(obj == iocur_top->data);
	dic = obj;
	return dic->di_version == XFS_DINODE_VERSION_2;
}

static int
inode_core_projid_count(
	void			*obj,
	int			startoff)
{
	xfs_dinode_core_t	*dic;

	ASSERT(startoff == 0);
	ASSERT(obj == iocur_top->data);
	dic = obj;
	return dic->di_version == XFS_DINODE_VERSION_2;
}

static int
inode_f(
	int		argc,
	char		**argv)
{
	xfs_ino_t	ino;
	char		*p;

	if (argc > 1) {
		ino = strtoull(argv[1], &p, 0);
		if (*p != '\0') {
			dbprintf("bad value for inode number %s\n", argv[1]);
			return 0;
		}
		set_cur_inode(ino);
	} else if (iocur_top->ino == NULLFSINO)
		dbprintf("no current inode\n");
	else
		dbprintf("current inode number is %lld\n", iocur_top->ino);
	return 0;
}

void
inode_init(void)
{
	add_command(&inode_cmd);
}

typnm_t
inode_next_type(void)
{
	switch (iocur_top->mode & IFMT) {
	case IFDIR:
		return XFS_DIR_IS_V2(mp) ? TYP_DIR2 : TYP_DIR;
	case IFLNK:
		return TYP_SYMLINK;
	case IFREG:
		if (iocur_top->ino == mp->m_sb.sb_rbmino)
			return TYP_RTBITMAP;
		else if (iocur_top->ino == mp->m_sb.sb_rsumino)
			return TYP_RTSUMMARY;
		else if (iocur_top->ino == mp->m_sb.sb_uquotino ||
			 iocur_top->ino == mp->m_sb.sb_gquotino)
			return TYP_DQBLK;
		else
			return TYP_DATA;
	default:
		return TYP_NONE;
	}
}

int
inode_size(
	void	*obj,
	int	startoff,
	int	idx)
{
	return bitize(mp->m_sb.sb_inodesize);
}

static int
inode_u_bmbt_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	ASSERT((char *)&dip->di_u - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_format, ARCH_CONVERT) == XFS_DINODE_FMT_BTREE;
}

static int
inode_u_bmx_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	ASSERT((char *)&dip->di_u - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_format, ARCH_CONVERT) == XFS_DINODE_FMT_EXTENTS ?
		INT_GET(dip->di_core.di_nextents, ARCH_CONVERT) : 0;
}

static int
inode_u_c_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	ASSERT((char *)&dip->di_u - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_format, ARCH_CONVERT) == XFS_DINODE_FMT_LOCAL &&
	       (INT_GET(dip->di_core.di_mode, ARCH_CONVERT) & IFMT) == IFREG ?
		(int)INT_GET(dip->di_core.di_size, ARCH_CONVERT) : 0;
}

static int
inode_u_dev_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	ASSERT((char *)&dip->di_u - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_format, ARCH_CONVERT) == XFS_DINODE_FMT_DEV;
}

static int
inode_u_muuid_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	ASSERT((char *)&dip->di_u - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_format, ARCH_CONVERT) == XFS_DINODE_FMT_UUID;
}

static int
inode_u_sfdir_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	ASSERT((char *)&dip->di_u - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_format, ARCH_CONVERT) == XFS_DINODE_FMT_LOCAL &&
	       (INT_GET(dip->di_core.di_mode, ARCH_CONVERT) & IFMT) == IFDIR
	       && XFS_DIR_IS_V1(mp);
}

static int
inode_u_sfdir2_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	ASSERT((char *)&dip->di_u - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_format, ARCH_CONVERT) == XFS_DINODE_FMT_LOCAL &&
	       (INT_GET(dip->di_core.di_mode, ARCH_CONVERT) & IFMT) == IFDIR &&
	       XFS_DIR_IS_V2(mp);
}

int
inode_u_size(
	void		*obj,
	int		startoff,
	int		idx)
{
	xfs_dinode_t	*dip;

	ASSERT(startoff == 0);
	ASSERT(idx == 0);
	dip = obj;
	switch (INT_GET(dip->di_core.di_format, ARCH_CONVERT)) {
	case XFS_DINODE_FMT_DEV:
		return bitsz(xfs_dev_t);
	case XFS_DINODE_FMT_LOCAL:
		return bitize((int)INT_GET(dip->di_core.di_size, ARCH_CONVERT));
	case XFS_DINODE_FMT_EXTENTS:
		return (int)(INT_GET(dip->di_core.di_nextents, ARCH_CONVERT) * bitsz(xfs_bmbt_rec_t));
	case XFS_DINODE_FMT_BTREE:
		return bitize((int)XFS_DFORK_DSIZE_ARCH(dip, mp, ARCH_CONVERT));
	case XFS_DINODE_FMT_UUID:
		return bitsz(uuid_t);
	default:
		return 0;
	}
}

static int
inode_u_symlink_count(
	void		*obj,
	int		startoff)
{
	xfs_dinode_t	*dip;

	ASSERT(bitoffs(startoff) == 0);
	ASSERT(obj == iocur_top->data);
	dip = obj;
	ASSERT((char *)&dip->di_u - (char *)dip == byteize(startoff));
	return INT_GET(dip->di_core.di_format, ARCH_CONVERT) == XFS_DINODE_FMT_LOCAL &&
	       (INT_GET(dip->di_core.di_mode, ARCH_CONVERT) & IFMT) == IFLNK ?
		(int)INT_GET(dip->di_core.di_size, ARCH_CONVERT) : 0;
}

void
set_cur_inode(
	xfs_ino_t	ino)
{
	xfs_agblock_t	agbno;
	xfs_agino_t	agino;
	xfs_agnumber_t	agno;
	xfs_dinode_t	*dip;
	int		offset;

	agno = XFS_INO_TO_AGNO(mp, ino);
	agino = XFS_INO_TO_AGINO(mp, ino);
	agbno = XFS_AGINO_TO_AGBNO(mp, agino);
	offset = XFS_AGINO_TO_OFFSET(mp, agino);
	if (agno >= mp->m_sb.sb_agcount || agbno >= mp->m_sb.sb_agblocks ||
	    offset >= mp->m_sb.sb_inopblock ||
	    XFS_AGINO_TO_INO(mp, agno, agino) != ino) {
		dbprintf("bad inode number %lld\n", ino);
		return;
	}
	cur_agno = agno;
	/*
	 * First set_cur to the block with the inode
	 * then use off_cur to get the right part of the buffer.
	 */
	ASSERT(typtab[TYP_INODE].typnm == TYP_INODE);

	/* ingore ring update here, do it explicitly below */
	set_cur(&typtab[TYP_INODE], XFS_AGB_TO_DADDR(mp, agno, agbno),
		blkbb, DB_RING_IGN, NULL);
	off_cur(offset << mp->m_sb.sb_inodelog, mp->m_sb.sb_inodesize);
	dip = iocur_top->data;
	iocur_top->ino = ino;
	iocur_top->mode = INT_GET(dip->di_core.di_mode, ARCH_CONVERT);
	if ((iocur_top->mode & IFMT) == IFDIR)
		iocur_top->dirino = ino;

	/* track updated info in ring */
	ring_add();
}