[thirdparty/xfsprogs-dev.git] / libfrog / fsgeom.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
 */
#include "libxfs.h"
#include "fsgeom.h"
#include "util.h"

void
xfs_report_geom(
	struct xfs_fsop_geom	*geo,
	const char		*mntpoint,
	const char		*logname,
	const char		*rtname)
{
	int			isint;
	int			lazycount;
	int			dirversion;
	int			logversion;
	int			attrversion;
	int			projid32bit;
	int			crcs_enabled;
	int			cimode;
	int			ftype_enabled;
	int			finobt_enabled;
	int			spinodes;
	int			rmapbt_enabled;
	int			reflink_enabled;

	isint = geo->logstart > 0;
	lazycount = geo->flags & XFS_FSOP_GEOM_FLAGS_LAZYSB ? 1 : 0;
	dirversion = geo->flags & XFS_FSOP_GEOM_FLAGS_DIRV2 ? 2 : 1;
	logversion = geo->flags & XFS_FSOP_GEOM_FLAGS_LOGV2 ? 2 : 1;
	attrversion = geo->flags & XFS_FSOP_GEOM_FLAGS_ATTR2 ? 2 : \
			(geo->flags & XFS_FSOP_GEOM_FLAGS_ATTR ? 1 : 0);
	cimode = geo->flags & XFS_FSOP_GEOM_FLAGS_DIRV2CI ? 1 : 0;
	projid32bit = geo->flags & XFS_FSOP_GEOM_FLAGS_PROJID32 ? 1 : 0;
	crcs_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_V5SB ? 1 : 0;
	ftype_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_FTYPE ? 1 : 0;
	finobt_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_FINOBT ? 1 : 0;
	spinodes = geo->flags & XFS_FSOP_GEOM_FLAGS_SPINODES ? 1 : 0;
	rmapbt_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_RMAPBT ? 1 : 0;
	reflink_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_REFLINK ? 1 : 0;

	printf(_(
"meta-data=%-22s isize=%-6d agcount=%u, agsize=%u blks\n"
"         =%-22s sectsz=%-5u attr=%u, projid32bit=%u\n"
"         =%-22s crc=%-8u finobt=%u, sparse=%u, rmapbt=%u\n"
"         =%-22s reflink=%u\n"
"data     =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n"
"         =%-22s sunit=%-6u swidth=%u blks\n"
"naming   =version %-14u bsize=%-6u ascii-ci=%d, ftype=%d\n"
"log      =%-22s bsize=%-6d blocks=%u, version=%d\n"
"         =%-22s sectsz=%-5u sunit=%d blks, lazy-count=%d\n"
"realtime =%-22s extsz=%-6d blocks=%lld, rtextents=%lld\n"),
		mntpoint, geo->inodesize, geo->agcount, geo->agblocks,
		"", geo->sectsize, attrversion, projid32bit,
		"", crcs_enabled, finobt_enabled, spinodes, rmapbt_enabled,
		"", reflink_enabled,
		"", geo->blocksize, (unsigned long long)geo->datablocks,
			geo->imaxpct,
		"", geo->sunit, geo->swidth,
		dirversion, geo->dirblocksize, cimode, ftype_enabled,
		isint ? _("internal log") : logname ? logname : _("external"),
			geo->blocksize, geo->logblocks, logversion,
		"", geo->logsectsize, geo->logsunit / geo->blocksize, lazycount,
		!geo->rtblocks ? _("none") : rtname ? rtname : _("external"),
		geo->rtextsize * geo->blocksize, (unsigned long long)geo->rtblocks,
			(unsigned long long)geo->rtextents);
}

/* Try to obtain the xfs geometry.  On error returns a positive error code. */
int
xfrog_geometry(
	int			fd,
	struct xfs_fsop_geom	*fsgeo)
{
	int			ret;

	memset(fsgeo, 0, sizeof(*fsgeo));

	ret = ioctl(fd, XFS_IOC_FSGEOMETRY, fsgeo);
	if (!ret)
		return 0;

	ret = ioctl(fd, XFS_IOC_FSGEOMETRY_V4, fsgeo);
	if (!ret)
		return 0;

	ret = ioctl(fd, XFS_IOC_FSGEOMETRY_V1, fsgeo);
	if (!ret)
		return 0;

	return errno;
}

/*
 * Prepare xfs_fd structure for future ioctl operations by computing the xfs
 * geometry for @xfd->fd.  Returns zero or a positive error code.
 */
int
xfd_prepare_geometry(
	struct xfs_fd		*xfd)
{
	int			ret;

	ret = xfrog_geometry(xfd->fd, &xfd->fsgeom);
	if (ret)
		return ret;

	xfd->agblklog = log2_roundup(xfd->fsgeom.agblocks);
	xfd->blocklog = highbit32(xfd->fsgeom.blocksize);
	xfd->inodelog = highbit32(xfd->fsgeom.inodesize);
	xfd->inopblog = xfd->blocklog - xfd->inodelog;
	xfd->aginolog = xfd->agblklog + xfd->inopblog;
	xfd->blkbb_log = xfd->blocklog - BBSHIFT;
	return 0;
}

/* Open a file on an XFS filesystem.  Returns zero or a positive error code. */
int
xfd_open(
	struct xfs_fd		*xfd,
	const char		*pathname,
	int			flags)
{
	int			ret;

	xfd->fd = open(pathname, flags);
	if (xfd->fd < 0)
		return errno;

	ret = xfd_prepare_geometry(xfd);
	if (ret) {
		xfd_close(xfd);
		return ret;
	}

	return 0;
}

/*
 * Release any resources associated with this xfs_fd structure.  Returns zero
 * or a positive error code.
 */
int
xfd_close(
	struct xfs_fd		*xfd)
{
	int			ret = 0;

	if (xfd->fd < 0)
		return 0;

	ret = close(xfd->fd);
	xfd->fd = -1;
	if (ret < 0)
		return errno;

	return 0;
}

/* Try to obtain an AG's geometry.  Returns zero or a positive error code. */
int
xfrog_ag_geometry(
	int			fd,
	unsigned int		agno,
	struct xfs_ag_geometry	*ageo)
{
	int			ret;

	ageo->ag_number = agno;
	ret = ioctl(fd, XFS_IOC_AG_GEOMETRY, ageo);
	if (ret)
		return errno;
	return 0;
}
Commit	Line	Data
959ef981	1	// SPDX-License-Identifier: GPL-2.0
96aaf9bc	2	/*
959ef981	3	* Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
96aaf9bc DW	4	*/
	5	#include "libxfs.h"
	6	#include "fsgeom.h"
660b5d96	7	#include "util.h"
96aaf9bc DW	8
	9	void
	10	xfs_report_geom(
	11	struct xfs_fsop_geom *geo,
	12	const char *mntpoint,
	13	const char *logname,
	14	const char *rtname)
	15	{
	16	int isint;
	17	int lazycount;
	18	int dirversion;
	19	int logversion;
	20	int attrversion;
	21	int projid32bit;
	22	int crcs_enabled;
	23	int cimode;
	24	int ftype_enabled;
	25	int finobt_enabled;
	26	int spinodes;
	27	int rmapbt_enabled;
	28	int reflink_enabled;
	29
	30	isint = geo->logstart > 0;
	31	lazycount = geo->flags & XFS_FSOP_GEOM_FLAGS_LAZYSB ? 1 : 0;
	32	dirversion = geo->flags & XFS_FSOP_GEOM_FLAGS_DIRV2 ? 2 : 1;
	33	logversion = geo->flags & XFS_FSOP_GEOM_FLAGS_LOGV2 ? 2 : 1;
	34	attrversion = geo->flags & XFS_FSOP_GEOM_FLAGS_ATTR2 ? 2 : \
	35	(geo->flags & XFS_FSOP_GEOM_FLAGS_ATTR ? 1 : 0);
	36	cimode = geo->flags & XFS_FSOP_GEOM_FLAGS_DIRV2CI ? 1 : 0;
	37	projid32bit = geo->flags & XFS_FSOP_GEOM_FLAGS_PROJID32 ? 1 : 0;
	38	crcs_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_V5SB ? 1 : 0;
	39	ftype_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_FTYPE ? 1 : 0;
	40	finobt_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_FINOBT ? 1 : 0;
	41	spinodes = geo->flags & XFS_FSOP_GEOM_FLAGS_SPINODES ? 1 : 0;
	42	rmapbt_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_RMAPBT ? 1 : 0;
	43	reflink_enabled = geo->flags & XFS_FSOP_GEOM_FLAGS_REFLINK ? 1 : 0;
	44
	45	printf(_(
	46	"meta-data=%-22s isize=%-6d agcount=%u, agsize=%u blks\n"
	47	" =%-22s sectsz=%-5u attr=%u, projid32bit=%u\n"
	48	" =%-22s crc=%-8u finobt=%u, sparse=%u, rmapbt=%u\n"
	49	" =%-22s reflink=%u\n"
	50	"data =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n"
	51	" =%-22s sunit=%-6u swidth=%u blks\n"
	52	"naming =version %-14u bsize=%-6u ascii-ci=%d, ftype=%d\n"
	53	"log =%-22s bsize=%-6d blocks=%u, version=%d\n"
	54	" =%-22s sectsz=%-5u sunit=%d blks, lazy-count=%d\n"
	55	"realtime =%-22s extsz=%-6d blocks=%lld, rtextents=%lld\n"),
	56	mntpoint, geo->inodesize, geo->agcount, geo->agblocks,
	57	"", geo->sectsize, attrversion, projid32bit,
	58	"", crcs_enabled, finobt_enabled, spinodes, rmapbt_enabled,
	59	"", reflink_enabled,
	60	"", geo->blocksize, (unsigned long long)geo->datablocks,
	61	geo->imaxpct,
	62	"", geo->sunit, geo->swidth,
	63	dirversion, geo->dirblocksize, cimode, ftype_enabled,
	64	isint ? _("internal log") : logname ? logname : _("external"),
	65	geo->blocksize, geo->logblocks, logversion,
	66	"", geo->logsectsize, geo->logsunit / geo->blocksize, lazycount,
	67	!geo->rtblocks ? _("none") : rtname ? rtname : _("external"),
	68	geo->rtextsize * geo->blocksize, (unsigned long long)geo->rtblocks,
	69	(unsigned long long)geo->rtextents);
	70	}
9612817d DW	71
	72	/* Try to obtain the xfs geometry. On error returns a positive error code. */
	73	int
	74	xfrog_geometry(
	75	int fd,
	76	struct xfs_fsop_geom *fsgeo)
	77	{
	78	int ret;
	79
	80	memset(fsgeo, 0, sizeof(*fsgeo));
	81
	82	ret = ioctl(fd, XFS_IOC_FSGEOMETRY, fsgeo);
	83	if (!ret)
	84	return 0;
	85
	86	ret = ioctl(fd, XFS_IOC_FSGEOMETRY_V4, fsgeo);
	87	if (!ret)
	88	return 0;
	89
	90	ret = ioctl(fd, XFS_IOC_FSGEOMETRY_V1, fsgeo);
	91	if (!ret)
	92	return 0;
	93
	94	return errno;
	95	}
3f9efb2e DW	96
	97	/*
	98	* Prepare xfs_fd structure for future ioctl operations by computing the xfs
	99	* geometry for @xfd->fd. Returns zero or a positive error code.
	100	*/
	101	int
	102	xfd_prepare_geometry(
	103	struct xfs_fd *xfd)
	104	{
5b5c7336 DW	105	int ret;
	106
	107	ret = xfrog_geometry(xfd->fd, &xfd->fsgeom);
	108	if (ret)
	109	return ret;
	110
	111	xfd->agblklog = log2_roundup(xfd->fsgeom.agblocks);
	112	xfd->blocklog = highbit32(xfd->fsgeom.blocksize);
	113	xfd->inodelog = highbit32(xfd->fsgeom.inodesize);
	114	xfd->inopblog = xfd->blocklog - xfd->inodelog;
a749451c	115	xfd->aginolog = xfd->agblklog + xfd->inopblog;
b3803ff1	116	xfd->blkbb_log = xfd->blocklog - BBSHIFT;
5b5c7336	117	return 0;
3f9efb2e DW	118	}
3f9efb2e DW	119
248af7cb DW	120	/* Open a file on an XFS filesystem. Returns zero or a positive error code. */
	121	int
	122	xfd_open(
	123	struct xfs_fd *xfd,
	124	const char *pathname,
	125	int flags)
	126	{
	127	int ret;
	128
	129	xfd->fd = open(pathname, flags);
	130	if (xfd->fd < 0)
	131	return errno;
	132
	133	ret = xfd_prepare_geometry(xfd);
	134	if (ret) {
	135	xfd_close(xfd);
	136	return ret;
	137	}
	138
	139	return 0;
	140	}
	141
3f9efb2e DW	142	/*
	143	* Release any resources associated with this xfs_fd structure. Returns zero
	144	* or a positive error code.
	145	*/
	146	int
	147	xfd_close(
	148	struct xfs_fd *xfd)
	149	{
	150	int ret = 0;
	151
	152	if (xfd->fd < 0)
	153	return 0;
	154
	155	ret = close(xfd->fd);
	156	xfd->fd = -1;
	157	if (ret < 0)
	158	return errno;
	159
	160	return 0;
	161	}
bb85ae74 DW	162
	163	/* Try to obtain an AG's geometry. Returns zero or a positive error code. */
	164	int
	165	xfrog_ag_geometry(
	166	int fd,
	167	unsigned int agno,
	168	struct xfs_ag_geometry *ageo)
	169	{
	170	int ret;
	171
	172	ageo->ag_number = agno;
	173	ret = ioctl(fd, XFS_IOC_AG_GEOMETRY, ageo);
	174	if (ret)
	175	return errno;
	176	return 0;
	177	}