1611 lines
39 KiB
C
1611 lines
39 KiB
C
/*
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* lsblk(8) - list block devices
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*
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* Copyright (C) 2010,2011,2012 Red Hat, Inc. All rights reserved.
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* Written by Milan Broz <mbroz@redhat.com>
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* Karel Zak <kzak@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <getopt.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <inttypes.h>
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#include <stdarg.h>
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#include <locale.h>
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#include <pwd.h>
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#include <grp.h>
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#include <ctype.h>
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#include <blkid.h>
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#include <libmount.h>
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#ifdef HAVE_LIBUDEV
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#include <libudev.h>
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#endif
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#include <assert.h>
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#include "c.h"
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#include "pathnames.h"
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#include "blkdev.h"
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#include "canonicalize.h"
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#include "nls.h"
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#include "tt.h"
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#include "xalloc.h"
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#include "strutils.h"
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#include "at.h"
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#include "sysfs.h"
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#include "closestream.h"
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#include "mangle.h"
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#include "optutils.h"
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/* column IDs */
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enum {
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COL_NAME = 0,
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COL_KNAME,
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COL_MAJMIN,
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COL_FSTYPE,
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COL_TARGET,
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COL_LABEL,
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COL_UUID,
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COL_PARTLABEL,
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COL_PARTUUID,
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COL_RA,
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COL_RO,
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COL_RM,
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COL_MODEL,
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COL_SERIAL,
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COL_SIZE,
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COL_STATE,
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COL_OWNER,
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COL_GROUP,
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COL_MODE,
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COL_ALIOFF,
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COL_MINIO,
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COL_OPTIO,
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COL_PHYSEC,
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COL_LOGSEC,
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COL_ROTA,
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COL_SCHED,
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COL_RQ_SIZE,
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COL_TYPE,
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COL_DALIGN,
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COL_DGRAN,
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COL_DMAX,
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COL_DZERO,
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COL_WSAME,
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COL_WWN,
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COL_RAND,
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COL_PKNAME,
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COL_HCTL,
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COL_TRANSPORT,
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COL_REV,
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COL_VENDOR,
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};
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/* column names */
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struct colinfo {
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const char *name; /* header */
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double whint; /* width hint (N < 1 is in percent of termwidth) */
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int flags; /* TT_FL_* */
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const char *help;
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};
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/* columns descriptions */
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static struct colinfo infos[] = {
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[COL_NAME] = { "NAME", 0.25, TT_FL_TREE | TT_FL_NOEXTREMES, N_("device name") },
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[COL_KNAME] = { "KNAME", 0.3, 0, N_("internal kernel device name") },
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[COL_PKNAME] = { "PKNAME", 0.3, 0, N_("internal parent kernel device name") },
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[COL_MAJMIN] = { "MAJ:MIN", 6, 0, N_("major:minor device number") },
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[COL_FSTYPE] = { "FSTYPE", 0.1, TT_FL_TRUNC, N_("filesystem type") },
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[COL_TARGET] = { "MOUNTPOINT", 0.10, TT_FL_TRUNC, N_("where the device is mounted") },
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[COL_LABEL] = { "LABEL", 0.1, 0, N_("filesystem LABEL") },
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[COL_UUID] = { "UUID", 36, 0, N_("filesystem UUID") },
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[COL_PARTLABEL] = { "PARTLABEL", 0.1, 0, N_("partition LABEL") },
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[COL_PARTUUID] = { "PARTUUID", 36, 0, N_("partition UUID") },
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[COL_RA] = { "RA", 3, TT_FL_RIGHT, N_("read-ahead of the device") },
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[COL_RO] = { "RO", 1, TT_FL_RIGHT, N_("read-only device") },
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[COL_RM] = { "RM", 1, TT_FL_RIGHT, N_("removable device") },
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[COL_ROTA] = { "ROTA", 1, TT_FL_RIGHT, N_("rotational device") },
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[COL_RAND] = { "RAND", 1, TT_FL_RIGHT, N_("adds randomness") },
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[COL_MODEL] = { "MODEL", 0.1, TT_FL_TRUNC, N_("device identifier") },
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[COL_SERIAL] = { "SERIAL", 0.1, TT_FL_TRUNC, N_("disk serial number") },
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[COL_SIZE] = { "SIZE", 5, TT_FL_RIGHT, N_("size of the device") },
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[COL_STATE] = { "STATE", 7, TT_FL_TRUNC, N_("state of the device") },
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[COL_OWNER] = { "OWNER", 0.1, TT_FL_TRUNC, N_("user name"), },
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[COL_GROUP] = { "GROUP", 0.1, TT_FL_TRUNC, N_("group name") },
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[COL_MODE] = { "MODE", 10, 0, N_("device node permissions") },
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[COL_ALIOFF] = { "ALIGNMENT", 6, TT_FL_RIGHT, N_("alignment offset") },
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[COL_MINIO] = { "MIN-IO", 6, TT_FL_RIGHT, N_("minimum I/O size") },
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[COL_OPTIO] = { "OPT-IO", 6, TT_FL_RIGHT, N_("optimal I/O size") },
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[COL_PHYSEC] = { "PHY-SEC", 7, TT_FL_RIGHT, N_("physical sector size") },
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[COL_LOGSEC] = { "LOG-SEC", 7, TT_FL_RIGHT, N_("logical sector size") },
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[COL_SCHED] = { "SCHED", 0.1, 0, N_("I/O scheduler name") },
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[COL_RQ_SIZE]= { "RQ-SIZE", 5, TT_FL_RIGHT, N_("request queue size") },
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[COL_TYPE] = { "TYPE", 4, 0, N_("device type") },
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[COL_DALIGN] = { "DISC-ALN", 6, TT_FL_RIGHT, N_("discard alignment offset") },
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[COL_DGRAN] = { "DISC-GRAN", 6, TT_FL_RIGHT, N_("discard granularity") },
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[COL_DMAX] = { "DISC-MAX", 6, TT_FL_RIGHT, N_("discard max bytes") },
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[COL_DZERO] = { "DISC-ZERO", 1, TT_FL_RIGHT, N_("discard zeroes data") },
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[COL_WSAME] = { "WSAME", 6, TT_FL_RIGHT, N_("write same max bytes") },
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[COL_WWN] = { "WWN", 18, 0, N_("unique storage identifier") },
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[COL_HCTL] = { "HCTL", 10, 0, N_("Host:Channel:Target:Lun for SCSI") },
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[COL_TRANSPORT] = { "TRAN", 6, 0, N_("device transport type") },
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[COL_REV] = { "REV", 4, TT_FL_RIGHT, N_("device revision") },
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[COL_VENDOR] = { "VENDOR", 0.1, TT_FL_TRUNC, N_("device vendor") },
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};
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struct lsblk {
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struct tt *tt; /* output table */
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unsigned int all_devices:1; /* print all devices, including empty */
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unsigned int bytes:1; /* print SIZE in bytes */
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unsigned int inverse:1; /* print inverse dependencies */
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unsigned int nodeps:1; /* don't print slaves/holders */
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unsigned int scsi:1; /* print only device with HCTL (SCSI) */
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unsigned int paths:1; /* print devnames with "/dev" prefix */
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};
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struct lsblk *lsblk; /* global handler */
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#define NCOLS ARRAY_SIZE(infos)
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static int columns[NCOLS];/* enabled columns */
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static int ncolumns; /* number of enabled columns */
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static int excludes[256];
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static size_t nexcludes;
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static int includes[256];
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static size_t nincludes;
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static struct libmnt_table *mtab, *swaps;
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static struct libmnt_cache *mntcache;
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#ifdef HAVE_LIBUDEV
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struct udev *udev;
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#endif
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struct blkdev_cxt {
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struct blkdev_cxt *parent;
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struct tt_line *tt_line;
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struct stat st;
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char *name; /* kernel name in /sys/block */
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char *dm_name; /* DM name (dm/block) */
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char *filename; /* path to device node */
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struct sysfs_cxt sysfs;
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int partition; /* is partition? TRUE/FALSE */
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int probed; /* already probed */
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char *fstype; /* detected fs, NULL or "?" if cannot detect */
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char *uuid; /* filesystem UUID (or stack uuid) */
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char *label; /* filesystem label */
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char *partuuid; /* partition UUID */
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char *partlabel; /* partiton label */
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char *wwn; /* storage WWN */
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char *serial; /* disk serial number */
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int npartitions; /* # of partitions this device has */
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int nholders; /* # of devices mapped directly to this device
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* /sys/block/.../holders */
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int nslaves; /* # of devices this device maps to */
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int maj, min; /* devno */
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int discard; /* supports discard */
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uint64_t size; /* device size */
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};
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static int is_maj_excluded(int maj)
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{
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size_t i;
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assert(ARRAY_SIZE(excludes) > nexcludes);
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if (!nexcludes)
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return 0; /* filter not enabled, device not exluded */
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for (i = 0; i < nexcludes; i++)
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if (excludes[i] == maj)
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return 1;
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return 0;
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}
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static int is_maj_included(int maj)
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{
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size_t i;
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assert(ARRAY_SIZE(includes) > nincludes);
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if (!nincludes)
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return 1; /* filter not enabled, device is included */
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for (i = 0; i < nincludes; i++)
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if (includes[i] == maj)
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return 1;
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return 0;
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}
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/* array with IDs of enabled columns */
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static int get_column_id(int num)
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{
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assert(ARRAY_SIZE(columns) == NCOLS);
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assert(num < ncolumns);
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assert(columns[num] < (int) NCOLS);
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return columns[num];
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}
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static struct colinfo *get_column_info(int num)
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{
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return &infos[ get_column_id(num) ];
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}
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static int column_name_to_id(const char *name, size_t namesz)
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{
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size_t i;
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for (i = 0; i < NCOLS; i++) {
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const char *cn = infos[i].name;
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if (!strncasecmp(name, cn, namesz) && !*(cn + namesz))
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return i;
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}
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warnx(_("unknown column: %s"), name);
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return -1;
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}
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static void reset_blkdev_cxt(struct blkdev_cxt *cxt)
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{
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if (!cxt)
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return;
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free(cxt->name);
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free(cxt->dm_name);
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free(cxt->filename);
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free(cxt->fstype);
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free(cxt->uuid);
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free(cxt->label);
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free(cxt->partuuid);
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free(cxt->partlabel);
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free(cxt->wwn);
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free(cxt->serial);
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sysfs_deinit(&cxt->sysfs);
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memset(cxt, 0, sizeof(*cxt));
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}
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static int is_dm(const char *name)
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{
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return strncmp(name, "dm-", 3) ? 0 : 1;
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}
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static struct dirent *xreaddir(DIR *dp)
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{
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struct dirent *d;
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assert(dp);
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while ((d = readdir(dp))) {
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if (!strcmp(d->d_name, ".") ||
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!strcmp(d->d_name, ".."))
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continue;
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/* blacklist here? */
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break;
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}
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return d;
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}
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static char *get_device_path(struct blkdev_cxt *cxt)
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{
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char path[PATH_MAX];
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assert(cxt);
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assert(cxt->name);
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if (is_dm(cxt->name))
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return canonicalize_dm_name(cxt->name);
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snprintf(path, sizeof(path), "/dev/%s", cxt->name);
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return xstrdup(path);
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}
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static int is_active_swap(const char *filename)
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{
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if (!swaps) {
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swaps = mnt_new_table();
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if (!swaps)
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return 0;
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if (!mntcache)
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mntcache = mnt_new_cache();
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mnt_table_set_cache(swaps, mntcache);
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mnt_table_parse_swaps(swaps, NULL);
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}
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return mnt_table_find_srcpath(swaps, filename, MNT_ITER_BACKWARD) != 0;
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}
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static char *get_device_mountpoint(struct blkdev_cxt *cxt)
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{
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struct libmnt_fs *fs;
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const char *fsroot;
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assert(cxt);
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assert(cxt->filename);
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if (!mtab) {
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mtab = mnt_new_table();
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if (!mtab)
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return NULL;
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if (!mntcache)
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mntcache = mnt_new_cache();
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mnt_table_set_cache(mtab, mntcache);
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mnt_table_parse_mtab(mtab, NULL);
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}
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/* try /etc/mtab or /proc/self/mountinfo */
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fs = mnt_table_find_srcpath(mtab, cxt->filename, MNT_ITER_BACKWARD);
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if (!fs)
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return is_active_swap(cxt->filename) ? xstrdup("[SWAP]") : NULL;
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/* found */
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fsroot = mnt_fs_get_root(fs);
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if (fsroot && strcmp(fsroot, "/") != 0) {
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/* hmm.. we found bind mount or btrfs subvolume, let's try to
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* get real FS root mountpoint */
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struct libmnt_fs *rfs;
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struct libmnt_iter *itr = mnt_new_iter(MNT_ITER_BACKWARD);
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mnt_table_set_iter(mtab, itr, fs);
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while (mnt_table_next_fs(mtab, itr, &rfs) == 0) {
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fsroot = mnt_fs_get_root(rfs);
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if ((!fsroot || strcmp(fsroot, "/") == 0)
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&& mnt_fs_match_source(rfs, cxt->filename, mntcache)) {
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fs = rfs;
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break;
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}
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}
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mnt_free_iter(itr);
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}
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return xstrdup(mnt_fs_get_target(fs));
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}
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#ifndef HAVE_LIBUDEV
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static int get_udev_properties(struct blkdev_cxt *cxt
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__attribute__((__unused__)))
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{
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return -1;
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}
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#else
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static int get_udev_properties(struct blkdev_cxt *cxt)
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{
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struct udev_device *dev;
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if (cxt->probed)
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return 0; /* already done */
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if (!udev)
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udev = udev_new();
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if (!udev)
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return -1;
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dev = udev_device_new_from_subsystem_sysname(udev, "block", cxt->name);
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if (dev) {
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const char *data;
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if ((data = udev_device_get_property_value(dev, "ID_FS_LABEL_ENC"))) {
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cxt->label = xstrdup(data);
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unhexmangle_string(cxt->label);
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}
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if ((data = udev_device_get_property_value(dev, "ID_FS_UUID_ENC"))) {
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cxt->uuid = xstrdup(data);
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unhexmangle_string(cxt->uuid);
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}
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if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_NAME"))) {
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cxt->partlabel = xstrdup(data);
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unhexmangle_string(cxt->partlabel);
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}
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if ((data = udev_device_get_property_value(dev, "ID_FS_TYPE")))
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cxt->fstype = xstrdup(data);
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if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_UUID")))
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cxt->partuuid = xstrdup(data);
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if ((data = udev_device_get_property_value(dev, "ID_WWN")))
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cxt->wwn = xstrdup(data);
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if ((data = udev_device_get_property_value(dev, "ID_SERIAL_SHORT")))
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cxt->serial = xstrdup(data);
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udev_device_unref(dev);
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cxt->probed = 1;
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}
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return cxt->probed == 1 ? 0 : -1;
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}
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#endif /* HAVE_LIBUDEV */
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static void probe_device(struct blkdev_cxt *cxt)
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{
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blkid_probe pr = NULL;
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if (cxt->probed)
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return;
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if (!cxt->size)
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return;
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/* try udev DB */
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if (get_udev_properties(cxt) == 0)
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return; /* success */
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cxt->probed = 1;
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/* try libblkid (fallback) */
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if (getuid() != 0)
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return; /* no permissions to read from the device */
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pr = blkid_new_probe_from_filename(cxt->filename);
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if (!pr)
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return;
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blkid_probe_enable_superblocks(pr, 1);
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blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_LABEL |
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BLKID_SUBLKS_UUID |
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BLKID_SUBLKS_TYPE);
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blkid_probe_enable_partitions(pr, 1);
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blkid_probe_set_partitions_flags(pr, BLKID_PARTS_ENTRY_DETAILS);
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if (!blkid_do_safeprobe(pr)) {
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const char *data = NULL;
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if (!blkid_probe_lookup_value(pr, "TYPE", &data, NULL))
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cxt->fstype = xstrdup(data);
|
|
if (!blkid_probe_lookup_value(pr, "UUID", &data, NULL))
|
|
cxt->uuid = xstrdup(data);
|
|
if (!blkid_probe_lookup_value(pr, "LABEL", &data, NULL))
|
|
cxt->label = xstrdup(data);
|
|
if (!blkid_probe_lookup_value(pr, "PART_ENTRY_UUID", &data, NULL))
|
|
cxt->partuuid = xstrdup(data);
|
|
if (!blkid_probe_lookup_value(pr, "PART_ENTRY_NAME", &data, NULL))
|
|
cxt->partlabel = xstrdup(data);
|
|
|
|
}
|
|
|
|
blkid_free_probe(pr);
|
|
return;
|
|
}
|
|
|
|
static int is_readonly_device(struct blkdev_cxt *cxt)
|
|
{
|
|
int fd, ro = 0;
|
|
|
|
if (sysfs_scanf(&cxt->sysfs, "ro", "%d", &ro) == 1)
|
|
return ro;
|
|
|
|
/* fallback if "ro" attribute does not exist */
|
|
fd = open(cxt->filename, O_RDONLY);
|
|
if (fd != -1) {
|
|
if (ioctl(fd, BLKROGET, &ro) != 0)
|
|
ro = 0;
|
|
close(fd);
|
|
}
|
|
return ro;
|
|
}
|
|
|
|
static char *get_scheduler(struct blkdev_cxt *cxt)
|
|
{
|
|
char *str = sysfs_strdup(&cxt->sysfs, "queue/scheduler");
|
|
char *p, *res = NULL;
|
|
|
|
if (!str)
|
|
return NULL;
|
|
p = strchr(str, '[');
|
|
if (p) {
|
|
res = p + 1;
|
|
p = strchr(res, ']');
|
|
if (p) {
|
|
*p = '\0';
|
|
res = xstrdup(res);
|
|
} else
|
|
res = NULL;
|
|
}
|
|
free(str);
|
|
return res;
|
|
}
|
|
|
|
static char *get_type(struct blkdev_cxt *cxt)
|
|
{
|
|
char *res = NULL, *p;
|
|
|
|
if (is_dm(cxt->name)) {
|
|
char *dm_uuid = sysfs_strdup(&cxt->sysfs, "dm/uuid");
|
|
|
|
/* The DM_UUID prefix should be set to subsystem owning
|
|
* the device - LVM, CRYPT, DMRAID, MPATH, PART */
|
|
if (dm_uuid) {
|
|
char *tmp = dm_uuid;
|
|
char *dm_uuid_prefix = strsep(&tmp, "-");
|
|
|
|
if (dm_uuid_prefix) {
|
|
/* kpartx hack to remove partition number */
|
|
if (strncasecmp(dm_uuid_prefix, "part", 4) == 0)
|
|
dm_uuid_prefix[4] = '\0';
|
|
|
|
res = xstrdup(dm_uuid_prefix);
|
|
}
|
|
}
|
|
|
|
free(dm_uuid);
|
|
if (!res)
|
|
/* No UUID or no prefix - just mark it as DM device */
|
|
res = xstrdup("dm");
|
|
|
|
} else if (!strncmp(cxt->name, "loop", 4)) {
|
|
res = xstrdup("loop");
|
|
|
|
} else if (!strncmp(cxt->name, "md", 2)) {
|
|
char *md_level = sysfs_strdup(&cxt->sysfs, "md/level");
|
|
res = md_level ? md_level : xstrdup("md");
|
|
|
|
} else {
|
|
const char *type = NULL;
|
|
int x = 0;
|
|
|
|
if (!sysfs_read_int(&cxt->sysfs, "device/type", &x))
|
|
type = blkdev_scsi_type_to_name(x);
|
|
|
|
if (!type)
|
|
type = cxt->partition ? "part" : "disk";
|
|
res = xstrdup(type);
|
|
}
|
|
|
|
for (p = res; p && *p; p++)
|
|
*p = tolower((unsigned char) *p);
|
|
return res;
|
|
}
|
|
|
|
/* Thanks to lsscsi code for idea of detection logic used here */
|
|
static char *get_transport(struct blkdev_cxt *cxt)
|
|
{
|
|
struct sysfs_cxt *sysfs = &cxt->sysfs;
|
|
char *attr = NULL;
|
|
const char *trans = NULL;
|
|
|
|
/* SCSI - Serial Peripheral Interface */
|
|
if (sysfs_scsi_host_is(sysfs, "spi"))
|
|
trans = "spi";
|
|
|
|
/* FC/FCoE - Fibre Channel / Fibre Channel over Ethernet */
|
|
else if (sysfs_scsi_host_is(sysfs, "fc")) {
|
|
attr = sysfs_scsi_host_strdup_attribute(sysfs, "fc", "symbolic_name");
|
|
if (!attr)
|
|
return NULL;
|
|
trans = strstr(attr, " over ") ? "fcoe" : "fc";
|
|
free(attr);
|
|
}
|
|
|
|
/* SAS - Serial Attached SCSI */
|
|
else if (sysfs_scsi_host_is(sysfs, "sas") ||
|
|
sysfs_scsi_has_attribute(sysfs, "sas_device"))
|
|
trans = "sas";
|
|
|
|
|
|
/* SBP - Serial Bus Protocol (FireWire) */
|
|
else if (sysfs_scsi_has_attribute(sysfs, "ieee1394_id"))
|
|
trans = "sbp";
|
|
|
|
/* iSCSI */
|
|
else if (sysfs_scsi_host_is(sysfs, "iscsi"))
|
|
trans ="iscsi";
|
|
|
|
/* USB - Universal Serial Bus */
|
|
else if (sysfs_scsi_path_contains(sysfs, "usb"))
|
|
trans = "usb";
|
|
|
|
/* ATA, SATA */
|
|
else if (sysfs_scsi_host_is(sysfs, "scsi")) {
|
|
attr = sysfs_scsi_host_strdup_attribute(sysfs, "scsi", "proc_name");
|
|
if (!attr)
|
|
return NULL;
|
|
if (!strncmp(attr, "ahci", 4) || !strncmp(attr, "sata", 4))
|
|
trans = "sata";
|
|
else if (strstr(attr, "ata"))
|
|
trans = "ata";
|
|
free(attr);
|
|
}
|
|
|
|
return trans ? xstrdup(trans) : NULL;
|
|
}
|
|
|
|
#define is_parsable(_l) (((_l)->tt->flags & TT_FL_RAW) || \
|
|
((_l)->tt->flags & TT_FL_EXPORT))
|
|
|
|
static char *mk_name(const char *name)
|
|
{
|
|
char *p;
|
|
if (!name)
|
|
return NULL;
|
|
if (lsblk->paths)
|
|
xasprintf(&p, "/dev/%s", name);
|
|
else
|
|
p = xstrdup(name);
|
|
return p;
|
|
}
|
|
|
|
static char *mk_dm_name(const char *name)
|
|
{
|
|
char *p;
|
|
if (!name)
|
|
return NULL;
|
|
if (lsblk->paths)
|
|
xasprintf(&p, "/dev/mapper/%s", name);
|
|
else
|
|
p = xstrdup(name);
|
|
return p;
|
|
}
|
|
|
|
static void set_tt_data(struct blkdev_cxt *cxt, int col, int id, struct tt_line *ln)
|
|
{
|
|
char *p = NULL;
|
|
int st_rc = 0;
|
|
|
|
if (!cxt->st.st_rdev && (id == COL_OWNER || id == COL_GROUP ||
|
|
id == COL_MODE))
|
|
st_rc = stat(cxt->filename, &cxt->st);
|
|
|
|
switch(id) {
|
|
case COL_NAME:
|
|
tt_line_set_data(ln, col, cxt->dm_name ?
|
|
mk_dm_name(cxt->dm_name) :
|
|
mk_name(cxt->name));
|
|
break;
|
|
case COL_KNAME:
|
|
tt_line_set_data(ln, col, mk_name(cxt->name));
|
|
break;
|
|
case COL_PKNAME:
|
|
if (cxt->parent)
|
|
tt_line_set_data(ln, col, mk_name(cxt->parent->name));
|
|
break;
|
|
case COL_OWNER:
|
|
{
|
|
struct passwd *pw = st_rc ? NULL : getpwuid(cxt->st.st_uid);
|
|
if (pw)
|
|
tt_line_set_data(ln, col, xstrdup(pw->pw_name));
|
|
break;
|
|
}
|
|
case COL_GROUP:
|
|
{
|
|
struct group *gr = st_rc ? NULL : getgrgid(cxt->st.st_gid);
|
|
if (gr)
|
|
tt_line_set_data(ln, col, xstrdup(gr->gr_name));
|
|
break;
|
|
}
|
|
case COL_MODE:
|
|
{
|
|
char md[11];
|
|
|
|
if (!st_rc) {
|
|
strmode(cxt->st.st_mode, md);
|
|
tt_line_set_data(ln, col, xstrdup(md));
|
|
}
|
|
break;
|
|
}
|
|
case COL_MAJMIN:
|
|
if (is_parsable(lsblk))
|
|
xasprintf(&p, "%u:%u", cxt->maj, cxt->min);
|
|
else
|
|
xasprintf(&p, "%3u:%-3u", cxt->maj, cxt->min);
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_FSTYPE:
|
|
probe_device(cxt);
|
|
if (cxt->fstype)
|
|
tt_line_set_data(ln, col, xstrdup(cxt->fstype));
|
|
break;
|
|
case COL_TARGET:
|
|
if (!(cxt->nholders + cxt->npartitions)) {
|
|
if ((p = get_device_mountpoint(cxt)))
|
|
tt_line_set_data(ln, col, p);
|
|
}
|
|
break;
|
|
case COL_LABEL:
|
|
probe_device(cxt);
|
|
if (!cxt->label)
|
|
break;
|
|
|
|
tt_line_set_data(ln, col, xstrdup(cxt->label));
|
|
break;
|
|
case COL_UUID:
|
|
probe_device(cxt);
|
|
if (cxt->uuid)
|
|
tt_line_set_data(ln, col, xstrdup(cxt->uuid));
|
|
break;
|
|
case COL_PARTLABEL:
|
|
probe_device(cxt);
|
|
if (!cxt->partlabel)
|
|
break;
|
|
|
|
tt_line_set_data(ln, col, xstrdup(cxt->partlabel));
|
|
break;
|
|
case COL_PARTUUID:
|
|
probe_device(cxt);
|
|
if (cxt->partuuid)
|
|
tt_line_set_data(ln, col, xstrdup(cxt->partuuid));
|
|
break;
|
|
case COL_WWN:
|
|
get_udev_properties(cxt);
|
|
if (cxt->wwn)
|
|
tt_line_set_data(ln, col, xstrdup(cxt->wwn));
|
|
break;
|
|
case COL_RA:
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/read_ahead_kb");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_RO:
|
|
tt_line_set_data(ln, col, is_readonly_device(cxt) ?
|
|
xstrdup("1") : xstrdup("0"));
|
|
break;
|
|
case COL_RM:
|
|
p = sysfs_strdup(&cxt->sysfs, "removable");
|
|
if (!p && cxt->sysfs.parent)
|
|
p = sysfs_strdup(cxt->sysfs.parent, "removable");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_ROTA:
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/rotational");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_RAND:
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/add_random");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_MODEL:
|
|
if (!cxt->partition && cxt->nslaves == 0) {
|
|
p = sysfs_strdup(&cxt->sysfs, "device/model");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
}
|
|
break;
|
|
case COL_SERIAL:
|
|
if (!cxt->partition && cxt->nslaves == 0) {
|
|
get_udev_properties(cxt);
|
|
if (cxt->serial)
|
|
tt_line_set_data(ln, col, xstrdup(cxt->serial));
|
|
}
|
|
break;
|
|
case COL_REV:
|
|
if (!cxt->partition && cxt->nslaves == 0) {
|
|
p = sysfs_strdup(&cxt->sysfs, "device/rev");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
}
|
|
break;
|
|
case COL_VENDOR:
|
|
if (!cxt->partition && cxt->nslaves == 0) {
|
|
p = sysfs_strdup(&cxt->sysfs, "device/vendor");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
}
|
|
break;
|
|
case COL_SIZE:
|
|
if (cxt->size) {
|
|
if (lsblk->bytes)
|
|
xasprintf(&p, "%jd", cxt->size);
|
|
else
|
|
p = size_to_human_string(SIZE_SUFFIX_1LETTER, cxt->size);
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
}
|
|
break;
|
|
case COL_STATE:
|
|
if (!cxt->partition && !cxt->dm_name) {
|
|
p = sysfs_strdup(&cxt->sysfs, "device/state");
|
|
} else if (cxt->dm_name) {
|
|
int x = 0;
|
|
if (sysfs_read_int(&cxt->sysfs, "dm/suspended", &x) == 0)
|
|
p = x ? xstrdup("suspended") : xstrdup("running");
|
|
}
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_ALIOFF:
|
|
p = sysfs_strdup(&cxt->sysfs, "alignment_offset");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_MINIO:
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/minimum_io_size");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_OPTIO:
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/optimal_io_size");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_PHYSEC:
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/physical_block_size");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_LOGSEC:
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/logical_block_size");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_SCHED:
|
|
p = get_scheduler(cxt);
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_RQ_SIZE:
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/nr_requests");
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_TYPE:
|
|
p = get_type(cxt);
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_HCTL:
|
|
{
|
|
int h, c, t, l;
|
|
if (sysfs_scsi_get_hctl(&cxt->sysfs, &h, &c, &t, &l) == 0) {
|
|
xasprintf(&p, "%d:%d:%d:%d", h, c, t, l);
|
|
tt_line_set_data(ln, col, p);
|
|
}
|
|
break;
|
|
}
|
|
case COL_TRANSPORT:
|
|
p = get_transport(cxt);
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_DALIGN:
|
|
p = sysfs_strdup(&cxt->sysfs, "discard_alignment");
|
|
if (cxt->discard && p)
|
|
tt_line_set_data(ln, col, p);
|
|
else
|
|
tt_line_set_data(ln, col, "0");
|
|
break;
|
|
case COL_DGRAN:
|
|
if (lsblk->bytes)
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/discard_granularity");
|
|
else {
|
|
uint64_t x;
|
|
|
|
if (sysfs_read_u64(&cxt->sysfs,
|
|
"queue/discard_granularity", &x) == 0)
|
|
p = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
|
|
}
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_DMAX:
|
|
if (lsblk->bytes)
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/discard_max_bytes");
|
|
else {
|
|
uint64_t x;
|
|
|
|
if (sysfs_read_u64(&cxt->sysfs,
|
|
"queue/discard_max_bytes", &x) == 0)
|
|
p = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
|
|
}
|
|
if (p)
|
|
tt_line_set_data(ln, col, p);
|
|
break;
|
|
case COL_DZERO:
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/discard_zeroes_data");
|
|
if (cxt->discard && p)
|
|
tt_line_set_data(ln, col, p);
|
|
else
|
|
tt_line_set_data(ln, col, "0");
|
|
break;
|
|
case COL_WSAME:
|
|
if (lsblk->bytes)
|
|
p = sysfs_strdup(&cxt->sysfs, "queue/write_same_max_bytes");
|
|
else {
|
|
uint64_t x;
|
|
|
|
if (sysfs_read_u64(&cxt->sysfs,
|
|
"queue/write_same_max_bytes", &x) == 0)
|
|
p = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
|
|
}
|
|
tt_line_set_data(ln, col, p ? p : "0");
|
|
break;
|
|
};
|
|
}
|
|
|
|
static void print_device(struct blkdev_cxt *cxt, struct tt_line *tt_parent)
|
|
{
|
|
int i;
|
|
|
|
cxt->tt_line = tt_add_line(lsblk->tt, tt_parent);
|
|
|
|
for (i = 0; i < ncolumns; i++)
|
|
set_tt_data(cxt, i, get_column_id(i), cxt->tt_line);
|
|
}
|
|
|
|
static int set_cxt(struct blkdev_cxt *cxt,
|
|
struct blkdev_cxt *parent,
|
|
struct blkdev_cxt *wholedisk,
|
|
const char *name)
|
|
{
|
|
dev_t devno;
|
|
|
|
cxt->parent = parent;
|
|
cxt->name = xstrdup(name);
|
|
cxt->partition = wholedisk != NULL;
|
|
|
|
cxt->filename = get_device_path(cxt);
|
|
if (!cxt->filename) {
|
|
warnx(_("%s: failed to get device path"), name);
|
|
return -1;
|
|
}
|
|
|
|
devno = sysfs_devname_to_devno(name, wholedisk ? wholedisk->name : NULL);
|
|
|
|
if (!devno) {
|
|
warnx(_("%s: unknown device name"), name);
|
|
return -1;
|
|
}
|
|
|
|
if (lsblk->inverse) {
|
|
if (sysfs_init(&cxt->sysfs, devno, wholedisk ? &wholedisk->sysfs : NULL)) {
|
|
warnx(_("%s: failed to initialize sysfs handler"), name);
|
|
return -1;
|
|
}
|
|
if (parent)
|
|
parent->sysfs.parent = &cxt->sysfs;
|
|
} else {
|
|
if (sysfs_init(&cxt->sysfs, devno, parent ? &parent->sysfs : NULL)) {
|
|
warnx(_("%s: failed to initialize sysfs handler"), name);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
cxt->maj = major(devno);
|
|
cxt->min = minor(devno);
|
|
cxt->size = 0;
|
|
|
|
if (sysfs_read_u64(&cxt->sysfs, "size", &cxt->size) == 0) /* in sectors */
|
|
cxt->size <<= 9; /* in bytes */
|
|
|
|
if (sysfs_read_int(&cxt->sysfs,
|
|
"queue/discard_granularity", &cxt->discard) != 0)
|
|
cxt->discard = 0;
|
|
|
|
/* Ignore devices of zero size */
|
|
if (!lsblk->all_devices && cxt->size == 0)
|
|
return -1;
|
|
|
|
if (is_dm(name)) {
|
|
cxt->dm_name = sysfs_strdup(&cxt->sysfs, "dm/name");
|
|
if (!cxt->dm_name) {
|
|
warnx(_("%s: failed to get dm name"), name);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
cxt->npartitions = sysfs_count_partitions(&cxt->sysfs, name);
|
|
cxt->nholders = sysfs_count_dirents(&cxt->sysfs, "holders");
|
|
cxt->nslaves = sysfs_count_dirents(&cxt->sysfs, "slaves");
|
|
|
|
/* ignore non-SCSI devices */
|
|
if (lsblk->scsi && sysfs_scsi_get_hctl(&cxt->sysfs, NULL, NULL, NULL, NULL))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int process_blkdev(struct blkdev_cxt *cxt, struct blkdev_cxt *parent,
|
|
int do_partitions, const char *part_name);
|
|
|
|
/*
|
|
* List device partitions if any.
|
|
*/
|
|
static int list_partitions(struct blkdev_cxt *wholedisk_cxt, struct blkdev_cxt *parent_cxt,
|
|
const char *part_name)
|
|
{
|
|
DIR *dir;
|
|
struct dirent *d;
|
|
struct blkdev_cxt part_cxt = {};
|
|
int r = -1;
|
|
|
|
assert(wholedisk_cxt);
|
|
|
|
/*
|
|
* Do not process further if there are no partitions for
|
|
* this device or the device itself is a partition.
|
|
*/
|
|
if (!wholedisk_cxt->npartitions || wholedisk_cxt->partition)
|
|
return -1;
|
|
|
|
dir = sysfs_opendir(&wholedisk_cxt->sysfs, NULL);
|
|
if (!dir)
|
|
err(EXIT_FAILURE, _("failed to open device directory in sysfs"));
|
|
|
|
while ((d = xreaddir(dir))) {
|
|
/* Process particular partition only? */
|
|
if (part_name && strcmp(part_name, d->d_name))
|
|
continue;
|
|
|
|
if (!(sysfs_is_partition_dirent(dir, d, wholedisk_cxt->name)))
|
|
continue;
|
|
|
|
if (lsblk->inverse) {
|
|
/*
|
|
* <parent_cxt>
|
|
* `-<part_cxt>
|
|
* `-<wholedisk_cxt>
|
|
* `-...
|
|
*/
|
|
if (set_cxt(&part_cxt, parent_cxt, wholedisk_cxt, d->d_name))
|
|
goto next;
|
|
|
|
if (!parent_cxt && part_cxt.nholders)
|
|
goto next;
|
|
|
|
wholedisk_cxt->parent = &part_cxt;
|
|
print_device(&part_cxt, parent_cxt ? parent_cxt->tt_line : NULL);
|
|
if (!lsblk->nodeps)
|
|
process_blkdev(wholedisk_cxt, &part_cxt, 0, NULL);
|
|
} else {
|
|
/*
|
|
* <parent_cxt>
|
|
* `-<wholedisk_cxt>
|
|
* `-<part_cxt>
|
|
* `-...
|
|
*/
|
|
int ps = set_cxt(&part_cxt, wholedisk_cxt, wholedisk_cxt, d->d_name);
|
|
|
|
/* Print whole disk only once */
|
|
if (r)
|
|
print_device(wholedisk_cxt, parent_cxt ? parent_cxt->tt_line : NULL);
|
|
if (ps == 0 && !lsblk->nodeps)
|
|
process_blkdev(&part_cxt, wholedisk_cxt, 0, NULL);
|
|
}
|
|
next:
|
|
reset_blkdev_cxt(&part_cxt);
|
|
r = 0;
|
|
}
|
|
|
|
closedir(dir);
|
|
return r;
|
|
}
|
|
|
|
static int get_wholedisk_from_partition_dirent(DIR *dir, const char *dirname,
|
|
struct dirent *d, struct blkdev_cxt *cxt)
|
|
{
|
|
char path[PATH_MAX];
|
|
char *p;
|
|
int len;
|
|
|
|
if ((len = readlink_at(dirfd(dir), dirname,
|
|
d->d_name, path, sizeof(path) - 1)) < 0)
|
|
return 0;
|
|
|
|
path[len] = '\0';
|
|
|
|
/* The path ends with ".../<device>/<partition>" */
|
|
p = strrchr(path, '/');
|
|
if (!p)
|
|
return 0;
|
|
*p = '\0';
|
|
|
|
p = strrchr(path, '/');
|
|
if (!p)
|
|
return 0;
|
|
p++;
|
|
|
|
return set_cxt(cxt, NULL, NULL, p);
|
|
}
|
|
|
|
/*
|
|
* List device dependencies: partitions, holders (inverse = 0) or slaves (inverse = 1).
|
|
*/
|
|
static int list_deps(struct blkdev_cxt *cxt)
|
|
{
|
|
DIR *dir;
|
|
struct dirent *d;
|
|
struct blkdev_cxt dep = {};
|
|
char dirname[PATH_MAX];
|
|
const char *depname;
|
|
|
|
assert(cxt);
|
|
|
|
if (lsblk->nodeps)
|
|
return 0;
|
|
|
|
if (!(lsblk->inverse ? cxt->nslaves : cxt->nholders))
|
|
return 0;
|
|
|
|
depname = lsblk->inverse ? "slaves" : "holders";
|
|
dir = sysfs_opendir(&cxt->sysfs, depname);
|
|
if (!dir)
|
|
return 0;
|
|
|
|
snprintf(dirname, sizeof(dirname), "%s/%s", cxt->sysfs.dir_path, depname);
|
|
|
|
while ((d = xreaddir(dir))) {
|
|
/* Is the dependency a partition? */
|
|
if (sysfs_is_partition_dirent(dir, d, NULL)) {
|
|
if (!get_wholedisk_from_partition_dirent(dir, dirname, d, &dep))
|
|
process_blkdev(&dep, cxt, 1, d->d_name);
|
|
}
|
|
/* The dependency is a whole device. */
|
|
else if (!set_cxt(&dep, cxt, NULL, d->d_name))
|
|
process_blkdev(&dep, cxt, 1, NULL);
|
|
|
|
reset_blkdev_cxt(&dep);
|
|
}
|
|
closedir(dir);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int process_blkdev(struct blkdev_cxt *cxt, struct blkdev_cxt *parent,
|
|
int do_partitions, const char *part_name)
|
|
{
|
|
if (do_partitions && cxt->npartitions)
|
|
return list_partitions(cxt, parent, part_name);
|
|
|
|
print_device(cxt, parent ? parent->tt_line : NULL);
|
|
return list_deps(cxt);
|
|
}
|
|
|
|
/* Iterate devices in sysfs */
|
|
static int iterate_block_devices(void)
|
|
{
|
|
DIR *dir;
|
|
struct dirent *d;
|
|
struct blkdev_cxt cxt = {};
|
|
|
|
if (!(dir = opendir(_PATH_SYS_BLOCK)))
|
|
return EXIT_FAILURE;
|
|
|
|
while ((d = xreaddir(dir))) {
|
|
if (set_cxt(&cxt, NULL, NULL, d->d_name))
|
|
goto next;
|
|
|
|
if (is_maj_excluded(cxt.maj) || !is_maj_included(cxt.maj))
|
|
goto next;
|
|
|
|
/* Skip devices in the middle of dependency tree. */
|
|
if ((lsblk->inverse ? cxt.nholders : cxt.nslaves) > 0)
|
|
goto next;
|
|
|
|
process_blkdev(&cxt, NULL, 1, NULL);
|
|
next:
|
|
reset_blkdev_cxt(&cxt);
|
|
}
|
|
|
|
closedir(dir);
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
static char *devno_to_sysfs_name(dev_t devno, char *devname, char *buf, size_t buf_size)
|
|
{
|
|
char path[PATH_MAX];
|
|
ssize_t len;
|
|
|
|
if (!sysfs_devno_path(devno, path, sizeof(path))) {
|
|
warn(_("%s: failed to compose sysfs path"), devname);
|
|
return NULL;
|
|
}
|
|
|
|
len = readlink(path, buf, buf_size - 1);
|
|
if (len < 0) {
|
|
warn(_("%s: failed to read link"), path);
|
|
return NULL;
|
|
}
|
|
buf[len] = '\0';
|
|
|
|
return xstrdup(strrchr(buf, '/') + 1);
|
|
}
|
|
|
|
static int process_one_device(char *devname)
|
|
{
|
|
struct blkdev_cxt parent = {}, cxt = {};
|
|
struct stat st;
|
|
char buf[PATH_MAX + 1], *name, *diskname = NULL;
|
|
dev_t disk = 0;
|
|
int real_part = 0;
|
|
int status = EXIT_FAILURE;
|
|
|
|
if (stat(devname, &st) || !S_ISBLK(st.st_mode)) {
|
|
warnx(_("%s: not a block device"), devname);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
if (!(name = devno_to_sysfs_name(st.st_rdev, devname, buf, PATH_MAX))) {
|
|
warn(_("%s: failed to get sysfs name"), devname);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
if (!strncmp(name, "dm-", 3)) {
|
|
/* dm mapping is never a real partition! */
|
|
real_part = 0;
|
|
} else {
|
|
if (blkid_devno_to_wholedisk(st.st_rdev, buf, sizeof(buf), &disk)) {
|
|
warn(_("%s: failed to get whole-disk device number"), devname);
|
|
return EXIT_FAILURE;
|
|
}
|
|
diskname = buf;
|
|
real_part = st.st_rdev != disk;
|
|
}
|
|
|
|
if (!real_part) {
|
|
/*
|
|
* Device is not a partition.
|
|
*/
|
|
if (set_cxt(&cxt, NULL, NULL, name))
|
|
goto leave;
|
|
process_blkdev(&cxt, NULL, !lsblk->inverse, NULL);
|
|
} else {
|
|
/*
|
|
* Partition, read sysfs name of the device.
|
|
*/
|
|
if (set_cxt(&parent, NULL, NULL, diskname))
|
|
goto leave;
|
|
if (set_cxt(&cxt, &parent, &parent, name))
|
|
goto leave;
|
|
|
|
if (lsblk->inverse)
|
|
process_blkdev(&parent, &cxt, 1, cxt.name);
|
|
else
|
|
process_blkdev(&cxt, &parent, 1, NULL);
|
|
}
|
|
|
|
status = EXIT_SUCCESS;
|
|
leave:
|
|
free(name);
|
|
reset_blkdev_cxt(&cxt);
|
|
|
|
if (real_part)
|
|
reset_blkdev_cxt(&parent);
|
|
|
|
return status;
|
|
}
|
|
|
|
static void parse_excludes(const char *str0)
|
|
{
|
|
const char *str = str0;
|
|
|
|
while (str && *str) {
|
|
char *end = NULL;
|
|
unsigned long n;
|
|
|
|
errno = 0;
|
|
n = strtoul(str, &end, 10);
|
|
|
|
if (end == str || (end && *end && *end != ','))
|
|
errx(EXIT_FAILURE, _("failed to parse list '%s'"), str0);
|
|
if (errno != 0 && (n == ULONG_MAX || n == 0))
|
|
err(EXIT_FAILURE, _("failed to parse list '%s'"), str0);
|
|
excludes[nexcludes++] = n;
|
|
|
|
if (nexcludes == ARRAY_SIZE(excludes))
|
|
/* TRANSLATORS: The standard value for %d is 256. */
|
|
errx(EXIT_FAILURE, _("the list of excluded devices is "
|
|
"too large (limit is %d devices)"),
|
|
(int)ARRAY_SIZE(excludes));
|
|
|
|
str = end && *end ? end + 1 : NULL;
|
|
}
|
|
}
|
|
|
|
static void parse_includes(const char *str0)
|
|
{
|
|
const char *str = str0;
|
|
|
|
while (str && *str) {
|
|
char *end = NULL;
|
|
unsigned long n;
|
|
|
|
errno = 0;
|
|
n = strtoul(str, &end, 10);
|
|
|
|
if (end == str || (end && *end && *end != ','))
|
|
errx(EXIT_FAILURE, _("failed to parse list '%s'"), str0);
|
|
if (errno != 0 && (n == ULONG_MAX || n == 0))
|
|
err(EXIT_FAILURE, _("failed to parse list '%s'"), str0);
|
|
includes[nincludes++] = n;
|
|
|
|
if (nincludes == ARRAY_SIZE(includes))
|
|
/* TRANSLATORS: The standard value for %d is 256. */
|
|
errx(EXIT_FAILURE, _("the list of included devices is "
|
|
"too large (limit is %d devices)"),
|
|
(int)ARRAY_SIZE(includes));
|
|
str = end && *end ? end + 1 : NULL;
|
|
}
|
|
}
|
|
|
|
static void __attribute__((__noreturn__)) help(FILE *out)
|
|
{
|
|
size_t i;
|
|
|
|
fputs(USAGE_HEADER, out);
|
|
fprintf(out, _(" %s [options] [<device> ...]\n"), program_invocation_short_name);
|
|
fputs(USAGE_OPTIONS, out);
|
|
fputs(_(" -a, --all print all devices\n"), out);
|
|
fputs(_(" -b, --bytes print SIZE in bytes rather than in human readable format\n"), out);
|
|
fputs(_(" -d, --nodeps don't print slaves or holders\n"), out);
|
|
fputs(_(" -D, --discard print discard capabilities\n"), out);
|
|
fputs(_(" -e, --exclude <list> exclude devices by major number (default: RAM disks)\n"), out);
|
|
fputs(_(" -I, --include <list> show only devices with specified major numbers\n"), out);
|
|
fputs(_(" -f, --fs output info about filesystems\n"), out);
|
|
fputs(_(" -h, --help usage information (this)\n"), out);
|
|
fputs(_(" -i, --ascii use ascii characters only\n"), out);
|
|
fputs(_(" -m, --perms output info about permissions\n"), out);
|
|
fputs(_(" -l, --list use list format output\n"), out);
|
|
fputs(_(" -n, --noheadings don't print headings\n"), out);
|
|
fputs(_(" -o, --output <list> output columns\n"), out);
|
|
fputs(_(" -p, --paths print complete device path\n"), out);
|
|
fputs(_(" -P, --pairs use key=\"value\" output format\n"), out);
|
|
fputs(_(" -r, --raw use raw output format\n"), out);
|
|
fputs(_(" -s, --inverse inverse dependencies\n"), out);
|
|
fputs(_(" -t, --topology output info about topology\n"), out);
|
|
fputs(_(" -S, --scsi output info about SCSI devices\n"), out);
|
|
fputs(USAGE_SEPARATOR, out);
|
|
fputs(USAGE_HELP, out);
|
|
fputs(USAGE_VERSION, out);
|
|
|
|
fprintf(out, _("\nAvailable columns (for --output):\n"));
|
|
|
|
for (i = 0; i < NCOLS; i++)
|
|
fprintf(out, " %11s %s\n", infos[i].name, _(infos[i].help));
|
|
|
|
fprintf(out, USAGE_MAN_TAIL("lsblk(8)"));
|
|
|
|
exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
|
|
}
|
|
|
|
static void check_sysdevblock(void)
|
|
{
|
|
if (access(_PATH_SYS_DEVBLOCK, R_OK) != 0)
|
|
err(EXIT_FAILURE, _("failed to access sysfs directory: %s"),
|
|
_PATH_SYS_DEVBLOCK);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct lsblk _ls;
|
|
int tt_flags = TT_FL_TREE;
|
|
int i, c, status = EXIT_FAILURE;
|
|
char *outarg = NULL;
|
|
|
|
static const struct option longopts[] = {
|
|
{ "all", 0, 0, 'a' },
|
|
{ "bytes", 0, 0, 'b' },
|
|
{ "nodeps", 0, 0, 'd' },
|
|
{ "discard", 0, 0, 'D' },
|
|
{ "help", 0, 0, 'h' },
|
|
{ "output", 1, 0, 'o' },
|
|
{ "perms", 0, 0, 'm' },
|
|
{ "noheadings", 0, 0, 'n' },
|
|
{ "list", 0, 0, 'l' },
|
|
{ "ascii", 0, 0, 'i' },
|
|
{ "raw", 0, 0, 'r' },
|
|
{ "inverse", 0, 0, 's' },
|
|
{ "fs", 0, 0, 'f' },
|
|
{ "exclude", 1, 0, 'e' },
|
|
{ "include", 1, 0, 'I' },
|
|
{ "topology", 0, 0, 't' },
|
|
{ "paths", 0, 0, 'p' },
|
|
{ "pairs", 0, 0, 'P' },
|
|
{ "scsi", 0, 0, 'S' },
|
|
{ "version", 0, 0, 'V' },
|
|
{ NULL, 0, 0, 0 },
|
|
};
|
|
|
|
static const ul_excl_t excl[] = { /* rows and cols in in ASCII order */
|
|
{ 'I','e' },
|
|
{ 'P','l','r' },
|
|
{ 0 }
|
|
};
|
|
int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT;
|
|
|
|
setlocale(LC_ALL, "");
|
|
bindtextdomain(PACKAGE, LOCALEDIR);
|
|
textdomain(PACKAGE);
|
|
atexit(close_stdout);
|
|
|
|
lsblk = &_ls;
|
|
memset(lsblk, 0, sizeof(*lsblk));
|
|
|
|
while((c = getopt_long(argc, argv,
|
|
"abdDe:fhlnmo:pPiI:rstVS", longopts, NULL)) != -1) {
|
|
|
|
err_exclusive_options(c, longopts, excl, excl_st);
|
|
|
|
switch(c) {
|
|
case 'a':
|
|
lsblk->all_devices = 1;
|
|
break;
|
|
case 'b':
|
|
lsblk->bytes = 1;
|
|
break;
|
|
case 'd':
|
|
lsblk->nodeps = 1;
|
|
break;
|
|
case 'D':
|
|
columns[ncolumns++] = COL_NAME;
|
|
columns[ncolumns++] = COL_DALIGN;
|
|
columns[ncolumns++] = COL_DGRAN;
|
|
columns[ncolumns++] = COL_DMAX;
|
|
columns[ncolumns++] = COL_DZERO;
|
|
break;
|
|
case 'e':
|
|
parse_excludes(optarg);
|
|
break;
|
|
case 'h':
|
|
help(stdout);
|
|
break;
|
|
case 'l':
|
|
tt_flags &= ~TT_FL_TREE; /* disable the default */
|
|
break;
|
|
case 'n':
|
|
tt_flags |= TT_FL_NOHEADINGS;
|
|
break;
|
|
case 'o':
|
|
outarg = optarg;
|
|
break;
|
|
case 'p':
|
|
lsblk->paths = 1;
|
|
break;
|
|
case 'P':
|
|
tt_flags |= TT_FL_EXPORT;
|
|
tt_flags &= ~TT_FL_TREE; /* disable the default */
|
|
break;
|
|
case 'i':
|
|
tt_flags |= TT_FL_ASCII;
|
|
break;
|
|
case 'I':
|
|
parse_includes(optarg);
|
|
break;
|
|
case 'r':
|
|
tt_flags &= ~TT_FL_TREE; /* disable the default */
|
|
tt_flags |= TT_FL_RAW; /* enable raw */
|
|
break;
|
|
case 's':
|
|
lsblk->inverse = 1;
|
|
break;
|
|
case 'f':
|
|
columns[ncolumns++] = COL_NAME;
|
|
columns[ncolumns++] = COL_FSTYPE;
|
|
columns[ncolumns++] = COL_LABEL;
|
|
columns[ncolumns++] = COL_UUID;
|
|
columns[ncolumns++] = COL_TARGET;
|
|
break;
|
|
case 'm':
|
|
columns[ncolumns++] = COL_NAME;
|
|
columns[ncolumns++] = COL_SIZE;
|
|
columns[ncolumns++] = COL_OWNER;
|
|
columns[ncolumns++] = COL_GROUP;
|
|
columns[ncolumns++] = COL_MODE;
|
|
break;
|
|
case 't':
|
|
columns[ncolumns++] = COL_NAME;
|
|
columns[ncolumns++] = COL_ALIOFF;
|
|
columns[ncolumns++] = COL_MINIO;
|
|
columns[ncolumns++] = COL_OPTIO;
|
|
columns[ncolumns++] = COL_PHYSEC;
|
|
columns[ncolumns++] = COL_LOGSEC;
|
|
columns[ncolumns++] = COL_ROTA;
|
|
columns[ncolumns++] = COL_SCHED;
|
|
columns[ncolumns++] = COL_RQ_SIZE;
|
|
columns[ncolumns++] = COL_RA;
|
|
columns[ncolumns++] = COL_WSAME;
|
|
break;
|
|
case 'S':
|
|
lsblk->nodeps = 1;
|
|
lsblk->scsi = 1;
|
|
columns[ncolumns++] = COL_NAME;
|
|
columns[ncolumns++] = COL_HCTL;
|
|
columns[ncolumns++] = COL_TYPE;
|
|
columns[ncolumns++] = COL_VENDOR;
|
|
columns[ncolumns++] = COL_MODEL;
|
|
columns[ncolumns++] = COL_REV;
|
|
columns[ncolumns++] = COL_TRANSPORT;
|
|
break;
|
|
case 'V':
|
|
printf(UTIL_LINUX_VERSION);
|
|
return EXIT_SUCCESS;
|
|
default:
|
|
help(stderr);
|
|
}
|
|
}
|
|
|
|
check_sysdevblock();
|
|
|
|
if (!ncolumns) {
|
|
columns[ncolumns++] = COL_NAME;
|
|
columns[ncolumns++] = COL_MAJMIN;
|
|
columns[ncolumns++] = COL_RM;
|
|
columns[ncolumns++] = COL_SIZE;
|
|
columns[ncolumns++] = COL_RO;
|
|
columns[ncolumns++] = COL_TYPE;
|
|
columns[ncolumns++] = COL_TARGET;
|
|
}
|
|
|
|
if (outarg && string_add_to_idarray(outarg, columns, ARRAY_SIZE(columns),
|
|
&ncolumns, column_name_to_id) < 0)
|
|
return EXIT_FAILURE;
|
|
|
|
if (nexcludes == 0 && nincludes == 0)
|
|
excludes[nexcludes++] = 1; /* default: ignore RAM disks */
|
|
|
|
mnt_init_debug(0);
|
|
|
|
/*
|
|
* initialize output columns
|
|
*/
|
|
if (!(lsblk->tt = tt_new_table(tt_flags)))
|
|
errx(EXIT_FAILURE, _("failed to initialize output table"));
|
|
|
|
for (i = 0; i < ncolumns; i++) {
|
|
struct colinfo *ci = get_column_info(i);
|
|
int fl = ci->flags;
|
|
|
|
if (!(tt_flags & TT_FL_TREE) && get_column_id(i) == COL_NAME)
|
|
fl &= ~TT_FL_TREE;
|
|
|
|
if (!tt_define_column(lsblk->tt, ci->name, ci->whint, fl)) {
|
|
warn(_("failed to initialize output column"));
|
|
goto leave;
|
|
}
|
|
}
|
|
|
|
if (optind == argc)
|
|
status = iterate_block_devices();
|
|
else while (optind < argc)
|
|
status = process_one_device(argv[optind++]);
|
|
|
|
tt_print_table(lsblk->tt);
|
|
|
|
leave:
|
|
tt_free_table(lsblk->tt);
|
|
mnt_free_table(mtab);
|
|
mnt_free_table(swaps);
|
|
mnt_free_cache(mntcache);
|
|
#ifdef HAVE_LIBUDEV
|
|
udev_unref(udev);
|
|
#endif
|
|
return status;
|
|
}
|