2148 lines
56 KiB
C
2148 lines
56 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 <sys/statvfs.h>
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#include <blkid.h>
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#include <libmount.h>
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#include <libsmartcols.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 "xalloc.h"
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#include "strutils.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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#include "debug.h"
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static UL_DEBUG_DEFINE_MASK(lsblk);
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UL_DEBUG_DEFINE_MASKNAMES(lsblk) = UL_DEBUG_EMPTY_MASKNAMES;
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#define LSBLK_DEBUG_INIT (1 << 1)
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#define LSBLK_DEBUG_FILTER (1 << 2)
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#define LSBLK_DEBUG_DEV (1 << 3)
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#define LSBLK_DEBUG_CXT (1 << 4)
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#define LSBLK_DEBUG_ALL 0xFFFF
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#define DBG(m, x) __UL_DBG(lsblk, LSBLK_DEBUG_, m, x)
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#define ON_DBG(m, x) __UL_DBG_CALL(lsblk, LSBLK_DEBUG_, m, x)
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#define UL_DEBUG_CURRENT_MASK UL_DEBUG_MASK(lsblk)
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#include "debugobj.h"
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#define LSBLK_EXIT_SOMEOK 64
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#define LSBLK_EXIT_ALLFAILED 32
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static int column_id_to_number(int id);
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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_PATH,
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COL_MAJMIN,
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COL_FSAVAIL,
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COL_FSSIZE,
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COL_FSTYPE,
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COL_FSUSED,
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COL_FSUSEPERC,
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COL_TARGET,
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COL_LABEL,
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COL_UUID,
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COL_PTUUID,
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COL_PTTYPE,
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COL_PARTTYPE,
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COL_PARTLABEL,
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COL_PARTUUID,
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COL_PARTFLAGS,
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COL_RA,
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COL_RO,
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COL_RM,
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COL_HOTPLUG,
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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_SUBSYS,
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COL_REV,
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COL_VENDOR,
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COL_ZONED,
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};
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/* basic table settings */
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enum {
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LSBLK_ASCII = (1 << 0),
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LSBLK_RAW = (1 << 1),
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LSBLK_NOHEADINGS = (1 << 2),
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LSBLK_EXPORT = (1 << 3),
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LSBLK_TREE = (1 << 4),
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LSBLK_JSON = (1 << 5),
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};
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/* Types used for qsort() and JSON */
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enum {
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COLTYPE_STR = 0, /* default */
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COLTYPE_NUM = 1, /* always u64 number */
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COLTYPE_SORTNUM = 2, /* string on output, u64 for qsort() */
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COLTYPE_SIZE = 3, /* srring by default, number when --bytes */
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COLTYPE_BOOL = 4 /* 0 or 1 */
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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; /* SCOLS_FL_* */
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const char *help;
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int type; /* COLTYPE_* */
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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, SCOLS_FL_TREE | SCOLS_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_PATH] = { "PATH", 0.3, 0, N_("path to the device node") },
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[COL_MAJMIN] = { "MAJ:MIN", 6, 0, N_("major:minor device number"), COLTYPE_SORTNUM },
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[COL_FSAVAIL] = { "FSAVAIL", 5, SCOLS_FL_RIGHT, N_("filesystem size available") },
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[COL_FSSIZE] = { "FSSIZE", 5, SCOLS_FL_RIGHT, N_("filesystem size") },
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[COL_FSTYPE] = { "FSTYPE", 0.1, SCOLS_FL_TRUNC, N_("filesystem type") },
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[COL_FSUSED] = { "FSUSED", 5, SCOLS_FL_RIGHT, N_("filesystem size used") },
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[COL_FSUSEPERC] = { "FSUSE%", 3, SCOLS_FL_RIGHT, N_("filesystem use percentage") },
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[COL_TARGET] = { "MOUNTPOINT", 0.10, SCOLS_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_PTUUID] = { "PTUUID", 36, 0, N_("partition table identifier (usually UUID)") },
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[COL_PTTYPE] = { "PTTYPE", 0.1, 0, N_("partition table type") },
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[COL_PARTTYPE] = { "PARTTYPE", 36, 0, N_("partition type 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_PARTFLAGS] = { "PARTFLAGS", 36, 0, N_("partition flags") },
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[COL_RA] = { "RA", 3, SCOLS_FL_RIGHT, N_("read-ahead of the device"), COLTYPE_NUM },
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[COL_RO] = { "RO", 1, SCOLS_FL_RIGHT, N_("read-only device"), COLTYPE_BOOL },
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[COL_RM] = { "RM", 1, SCOLS_FL_RIGHT, N_("removable device"), COLTYPE_BOOL },
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[COL_HOTPLUG]= { "HOTPLUG", 1, SCOLS_FL_RIGHT, N_("removable or hotplug device (usb, pcmcia, ...)"), COLTYPE_BOOL },
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[COL_ROTA] = { "ROTA", 1, SCOLS_FL_RIGHT, N_("rotational device"), COLTYPE_BOOL },
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[COL_RAND] = { "RAND", 1, SCOLS_FL_RIGHT, N_("adds randomness"), COLTYPE_BOOL },
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[COL_MODEL] = { "MODEL", 0.1, SCOLS_FL_TRUNC, N_("device identifier") },
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[COL_SERIAL] = { "SERIAL", 0.1, SCOLS_FL_TRUNC, N_("disk serial number") },
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[COL_SIZE] = { "SIZE", 5, SCOLS_FL_RIGHT, N_("size of the device"), COLTYPE_SIZE },
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[COL_STATE] = { "STATE", 7, SCOLS_FL_TRUNC, N_("state of the device") },
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[COL_OWNER] = { "OWNER", 0.1, SCOLS_FL_TRUNC, N_("user name"), },
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[COL_GROUP] = { "GROUP", 0.1, SCOLS_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, SCOLS_FL_RIGHT, N_("alignment offset"), COLTYPE_NUM },
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[COL_MINIO] = { "MIN-IO", 6, SCOLS_FL_RIGHT, N_("minimum I/O size"), COLTYPE_NUM },
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[COL_OPTIO] = { "OPT-IO", 6, SCOLS_FL_RIGHT, N_("optimal I/O size"), COLTYPE_NUM },
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[COL_PHYSEC] = { "PHY-SEC", 7, SCOLS_FL_RIGHT, N_("physical sector size"), COLTYPE_NUM },
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[COL_LOGSEC] = { "LOG-SEC", 7, SCOLS_FL_RIGHT, N_("logical sector size"), COLTYPE_NUM },
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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, SCOLS_FL_RIGHT, N_("request queue size"), COLTYPE_NUM },
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[COL_TYPE] = { "TYPE", 4, 0, N_("device type") },
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[COL_DALIGN] = { "DISC-ALN", 6, SCOLS_FL_RIGHT, N_("discard alignment offset"), COLTYPE_NUM },
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[COL_DGRAN] = { "DISC-GRAN", 6, SCOLS_FL_RIGHT, N_("discard granularity"), COLTYPE_SIZE },
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[COL_DMAX] = { "DISC-MAX", 6, SCOLS_FL_RIGHT, N_("discard max bytes"), COLTYPE_SIZE },
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[COL_DZERO] = { "DISC-ZERO", 1, SCOLS_FL_RIGHT, N_("discard zeroes data"), COLTYPE_BOOL },
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[COL_WSAME] = { "WSAME", 6, SCOLS_FL_RIGHT, N_("write same max bytes"), COLTYPE_SIZE },
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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_SUBSYS] = { "SUBSYSTEMS", 0.1, SCOLS_FL_NOEXTREMES, N_("de-duplicated chain of subsystems") },
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[COL_REV] = { "REV", 4, SCOLS_FL_RIGHT, N_("device revision") },
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[COL_VENDOR] = { "VENDOR", 0.1, SCOLS_FL_TRUNC, N_("device vendor") },
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[COL_ZONED] = { "ZONED", 0.3, 0, N_("zone model") },
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};
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struct lsblk {
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struct libscols_table *table; /* output table */
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struct libscols_column *sort_col;/* sort output by this column */
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int sort_id;
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const char *sysroot;
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int flags; /* LSBLK_* */
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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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unsigned int sort_hidden:1; /* sort column not between output columns */
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unsigned int force_tree_order:1;/* sort lines by parent->tree relation */
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};
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static struct lsblk *lsblk; /* global handler */
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/* columns[] array specifies all currently wanted output column. The columns
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* are defined by infos[] array and you can specify (on command line) each
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* column twice. That's enough, dynamically allocated array of the columns is
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* unnecessary overkill and over-engineering in this case */
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static int columns[ARRAY_SIZE(infos) * 2];
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static size_t ncolumns;
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static inline void add_column(int id)
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{
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if (ncolumns >= ARRAY_SIZE(columns))
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errx(EXIT_FAILURE, _("too many columns specified, "
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"the limit is %zu columns"),
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ARRAY_SIZE(columns) - 1);
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columns[ ncolumns++ ] = id;
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}
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static inline void add_uniq_column(int id)
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{
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if (column_id_to_number(id) < 0)
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add_column(id);
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}
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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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static 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 libscols_line *scols_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 path_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 *ptuuid; /* partition table UUID */
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char *pttype; /* partition table type */
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char *label; /* filesystem label */
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char *parttype; /* partition type UUID */
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char *partuuid; /* partition UUID */
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char *partlabel; /* partition label */
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char *partflags; /* partition flags */
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char *wwn; /* storage WWN */
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char *serial; /* disk serial number */
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char *model; /* disk model */
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char *mountpoint; /* device mountpoint */
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struct statvfs fsstat; /* statvfs() result */
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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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unsigned int is_mounted : 1;
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};
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static void lsblk_init_debug(void)
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{
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__UL_INIT_DEBUG_FROM_ENV(lsblk, LSBLK_DEBUG_, 0, LSBLK_DEBUG);
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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 excluded */
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for (i = 0; i < nexcludes; i++) {
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if (excludes[i] == maj) {
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DBG(FILTER, ul_debug("exclude: maj=%d", maj));
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return 1;
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}
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}
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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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DBG(FILTER, ul_debug("include: maj=%d", maj));
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return 1;
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}
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}
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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(num >= 0);
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assert((size_t) num < ncolumns);
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assert(columns[num] < (int) ARRAY_SIZE(infos));
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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 < ARRAY_SIZE(infos); 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 int column_id_to_number(int id)
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{
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size_t i;
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for (i = 0; i < ncolumns; i++)
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if (columns[i] == id)
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return i;
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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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DBG(CXT, ul_debugobj(cxt, "reset"));
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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->ptuuid);
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free(cxt->pttype);
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free(cxt->label);
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free(cxt->parttype);
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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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free(cxt->model);
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free(cxt->mountpoint);
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ul_unref_path(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))
|
|
return __canonicalize_dm_name(lsblk->sysroot, cxt->name);
|
|
|
|
snprintf(path, sizeof(path), "/dev/%s", cxt->name);
|
|
sysfs_devname_sys_to_dev(path);
|
|
return xstrdup(path);
|
|
}
|
|
|
|
static int table_parser_errcb(struct libmnt_table *tb __attribute__((__unused__)),
|
|
const char *filename, int line)
|
|
{
|
|
if (filename)
|
|
warnx(_("%s: parse error at line %d -- ignored"), filename, line);
|
|
return 1;
|
|
}
|
|
|
|
static int is_active_swap(const char *filename)
|
|
{
|
|
if (!swaps) {
|
|
swaps = mnt_new_table();
|
|
if (!swaps)
|
|
return 0;
|
|
if (!mntcache)
|
|
mntcache = mnt_new_cache();
|
|
|
|
mnt_table_set_parser_errcb(swaps, table_parser_errcb);
|
|
mnt_table_set_cache(swaps, mntcache);
|
|
|
|
if (!lsblk->sysroot)
|
|
mnt_table_parse_swaps(swaps, NULL);
|
|
else {
|
|
char buf[PATH_MAX];
|
|
snprintf(buf, sizeof(buf), "%s" _PATH_PROC_SWAPS, lsblk->sysroot);
|
|
mnt_table_parse_swaps(swaps, buf);
|
|
}
|
|
}
|
|
|
|
return mnt_table_find_srcpath(swaps, filename, MNT_ITER_BACKWARD) != NULL;
|
|
}
|
|
|
|
static char *get_device_mountpoint(struct blkdev_cxt *cxt)
|
|
{
|
|
struct libmnt_fs *fs;
|
|
const char *fsroot;
|
|
|
|
assert(cxt);
|
|
assert(cxt->filename);
|
|
|
|
if (cxt->is_mounted)
|
|
return cxt->mountpoint;
|
|
|
|
if (!mtab) {
|
|
mtab = mnt_new_table();
|
|
if (!mtab)
|
|
return NULL;
|
|
if (!mntcache)
|
|
mntcache = mnt_new_cache();
|
|
|
|
mnt_table_set_parser_errcb(mtab, table_parser_errcb);
|
|
mnt_table_set_cache(mtab, mntcache);
|
|
|
|
if (!lsblk->sysroot)
|
|
mnt_table_parse_mtab(mtab, NULL);
|
|
else {
|
|
char buf[PATH_MAX];
|
|
snprintf(buf, sizeof(buf), "%s" _PATH_PROC_MOUNTINFO, lsblk->sysroot);
|
|
mnt_table_parse_mtab(mtab, buf);
|
|
}
|
|
}
|
|
|
|
/* Note that maj:min in /proc/self/mountinfo does not have to match with
|
|
* devno as returned by stat(), so we have to try devname too
|
|
*/
|
|
fs = mnt_table_find_devno(mtab, makedev(cxt->maj, cxt->min), MNT_ITER_BACKWARD);
|
|
if (!fs)
|
|
fs = mnt_table_find_srcpath(mtab, cxt->filename, MNT_ITER_BACKWARD);
|
|
if (!fs) {
|
|
cxt->mountpoint = is_active_swap(cxt->filename) ? xstrdup("[SWAP]") : NULL;
|
|
cxt->is_mounted = 1;
|
|
return cxt->mountpoint;
|
|
}
|
|
|
|
/* found */
|
|
fsroot = mnt_fs_get_root(fs);
|
|
if (fsroot && strcmp(fsroot, "/") != 0) {
|
|
/* hmm.. we found bind mount or btrfs subvolume, let's try to
|
|
* get real FS root mountpoint */
|
|
struct libmnt_fs *rfs;
|
|
struct libmnt_iter *itr = mnt_new_iter(MNT_ITER_BACKWARD);
|
|
|
|
mnt_table_set_iter(mtab, itr, fs);
|
|
while (mnt_table_next_fs(mtab, itr, &rfs) == 0) {
|
|
fsroot = mnt_fs_get_root(rfs);
|
|
if ((!fsroot || strcmp(fsroot, "/") == 0)
|
|
&& mnt_fs_match_source(rfs, cxt->filename, mntcache)) {
|
|
fs = rfs;
|
|
break;
|
|
}
|
|
}
|
|
mnt_free_iter(itr);
|
|
}
|
|
|
|
DBG(DEV, ul_debugobj(cxt, "mountpoint: %s", mnt_fs_get_target(fs)));
|
|
cxt->mountpoint = xstrdup(mnt_fs_get_target(fs));
|
|
cxt->is_mounted = 1;
|
|
return cxt->mountpoint;
|
|
}
|
|
|
|
#ifndef HAVE_LIBUDEV
|
|
static int get_udev_properties(struct blkdev_cxt *cxt
|
|
__attribute__((__unused__)))
|
|
{
|
|
return -1;
|
|
}
|
|
#else
|
|
static int get_udev_properties(struct blkdev_cxt *cxt)
|
|
{
|
|
struct udev_device *dev;
|
|
|
|
if (cxt->probed)
|
|
return 0; /* already done */
|
|
if (lsblk->sysroot)
|
|
return -1; /* don't ask udev when read from data from dump */
|
|
|
|
if (!udev)
|
|
udev = udev_new();
|
|
if (!udev)
|
|
return -1;
|
|
|
|
dev = udev_device_new_from_subsystem_sysname(udev, "block", cxt->name);
|
|
if (dev) {
|
|
const char *data;
|
|
|
|
if ((data = udev_device_get_property_value(dev, "ID_FS_LABEL_ENC"))) {
|
|
cxt->label = xstrdup(data);
|
|
unhexmangle_string(cxt->label);
|
|
}
|
|
if ((data = udev_device_get_property_value(dev, "ID_FS_UUID_ENC"))) {
|
|
cxt->uuid = xstrdup(data);
|
|
unhexmangle_string(cxt->uuid);
|
|
}
|
|
if ((data = udev_device_get_property_value(dev, "ID_PART_TABLE_UUID")))
|
|
cxt->ptuuid = xstrdup(data);
|
|
if ((data = udev_device_get_property_value(dev, "ID_PART_TABLE_TYPE")))
|
|
cxt->pttype = xstrdup(data);
|
|
if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_NAME"))) {
|
|
cxt->partlabel = xstrdup(data);
|
|
unhexmangle_string(cxt->partlabel);
|
|
}
|
|
if ((data = udev_device_get_property_value(dev, "ID_FS_TYPE")))
|
|
cxt->fstype = xstrdup(data);
|
|
if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE")))
|
|
cxt->parttype = xstrdup(data);
|
|
if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_UUID")))
|
|
cxt->partuuid = xstrdup(data);
|
|
if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_FLAGS")))
|
|
cxt->partflags = xstrdup(data);
|
|
|
|
data = udev_device_get_property_value(dev, "ID_WWN_WITH_EXTENSION");
|
|
if (!data)
|
|
data = udev_device_get_property_value(dev, "ID_WWN");
|
|
if (data)
|
|
cxt->wwn = xstrdup(data);
|
|
|
|
if ((data = udev_device_get_property_value(dev, "ID_SERIAL_SHORT")))
|
|
cxt->serial = xstrdup(data);
|
|
if ((data = udev_device_get_property_value(dev, "ID_MODEL")))
|
|
cxt->model = xstrdup(data);
|
|
|
|
udev_device_unref(dev);
|
|
cxt->probed = 1;
|
|
DBG(DEV, ul_debugobj(cxt, "%s: found udev properties", cxt->name));
|
|
}
|
|
|
|
return cxt->probed == 1 ? 0 : -1;
|
|
|
|
}
|
|
#endif /* HAVE_LIBUDEV */
|
|
|
|
static void probe_device(struct blkdev_cxt *cxt)
|
|
{
|
|
blkid_probe pr = NULL;
|
|
|
|
if (cxt->probed)
|
|
return;
|
|
|
|
if (!cxt->size)
|
|
return;
|
|
|
|
/* try udev DB */
|
|
if (get_udev_properties(cxt) == 0)
|
|
return; /* success */
|
|
|
|
cxt->probed = 1;
|
|
|
|
/* try libblkid (fallback) */
|
|
if (getuid() != 0)
|
|
return; /* no permissions to read from the device */
|
|
|
|
pr = blkid_new_probe_from_filename(cxt->filename);
|
|
if (!pr)
|
|
return;
|
|
|
|
blkid_probe_enable_superblocks(pr, 1);
|
|
blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_LABEL |
|
|
BLKID_SUBLKS_UUID |
|
|
BLKID_SUBLKS_TYPE);
|
|
blkid_probe_enable_partitions(pr, 1);
|
|
blkid_probe_set_partitions_flags(pr, BLKID_PARTS_ENTRY_DETAILS);
|
|
|
|
if (!blkid_do_safeprobe(pr)) {
|
|
const char *data = NULL;
|
|
|
|
if (!blkid_probe_lookup_value(pr, "TYPE", &data, NULL))
|
|
cxt->fstype = xstrdup(data);
|
|
if (!blkid_probe_lookup_value(pr, "UUID", &data, NULL))
|
|
cxt->uuid = xstrdup(data);
|
|
if (!blkid_probe_lookup_value(pr, "PTUUID", &data, NULL))
|
|
cxt->ptuuid = xstrdup(data);
|
|
if (!blkid_probe_lookup_value(pr, "PTTYPE", &data, NULL))
|
|
cxt->pttype = xstrdup(data);
|
|
if (!blkid_probe_lookup_value(pr, "LABEL", &data, NULL))
|
|
cxt->label = xstrdup(data);
|
|
if (!blkid_probe_lookup_value(pr, "PART_ENTRY_TYPE", &data, NULL))
|
|
cxt->parttype = 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);
|
|
if (!blkid_probe_lookup_value(pr, "PART_ENTRY_FLAGS", &data, NULL))
|
|
cxt->partflags = xstrdup(data);
|
|
DBG(DEV, ul_debugobj(cxt, "%s: found blkid properties", cxt->name));
|
|
}
|
|
|
|
blkid_free_probe(pr);
|
|
return;
|
|
}
|
|
|
|
static int is_readonly_device(struct blkdev_cxt *cxt)
|
|
{
|
|
int fd, ro = 0;
|
|
|
|
if (ul_path_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 buf[128];
|
|
char *p, *res = NULL;
|
|
|
|
if (ul_path_read_buffer(cxt->sysfs, buf, sizeof(buf), "queue/scheduler") == 0)
|
|
return NULL;
|
|
p = strchr(buf, '[');
|
|
if (p) {
|
|
res = p + 1;
|
|
p = strchr(res, ']');
|
|
if (p) {
|
|
*p = '\0';
|
|
res = xstrdup(res);
|
|
} else
|
|
res = NULL;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static char *get_type(struct blkdev_cxt *cxt)
|
|
{
|
|
char *res = NULL, *p;
|
|
|
|
if (is_dm(cxt->name)) {
|
|
char *dm_uuid = NULL;
|
|
|
|
/* The DM_UUID prefix should be set to subsystem owning
|
|
* the device - LVM, CRYPT, DMRAID, MPATH, PART */
|
|
if (ul_path_read_string(cxt->sysfs, &dm_uuid, "dm/uuid") > 0
|
|
&& 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 = NULL;
|
|
|
|
ul_path_read_string(cxt->sysfs, &md_level, "md/level");
|
|
res = md_level ? md_level : xstrdup("md");
|
|
|
|
} else {
|
|
const char *type = NULL;
|
|
int x = 0;
|
|
|
|
if (ul_path_read_s32(cxt->sysfs, &x, "device/type") == 0)
|
|
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 path_cxt *sysfs = cxt->sysfs;
|
|
char *attr = NULL;
|
|
const char *trans = NULL;
|
|
|
|
|
|
/* SCSI - Serial Peripheral Interface */
|
|
if (sysfs_blkdev_scsi_host_is(sysfs, "spi"))
|
|
trans = "spi";
|
|
|
|
/* FC/FCoE - Fibre Channel / Fibre Channel over Ethernet */
|
|
else if (sysfs_blkdev_scsi_host_is(sysfs, "fc")) {
|
|
attr = sysfs_blkdev_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_blkdev_scsi_host_is(sysfs, "sas") ||
|
|
sysfs_blkdev_scsi_has_attribute(sysfs, "sas_device"))
|
|
trans = "sas";
|
|
|
|
|
|
/* SBP - Serial Bus Protocol (FireWire) */
|
|
else if (sysfs_blkdev_scsi_has_attribute(sysfs, "ieee1394_id"))
|
|
trans = "sbp";
|
|
|
|
/* iSCSI */
|
|
else if (sysfs_blkdev_scsi_host_is(sysfs, "iscsi"))
|
|
trans ="iscsi";
|
|
|
|
/* USB - Universal Serial Bus */
|
|
else if (sysfs_blkdev_scsi_path_contains(sysfs, "usb"))
|
|
trans = "usb";
|
|
|
|
/* ATA, SATA */
|
|
else if (sysfs_blkdev_scsi_host_is(sysfs, "scsi")) {
|
|
attr = sysfs_blkdev_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);
|
|
|
|
} else if (strncmp(cxt->name, "nvme", 4) == 0)
|
|
trans = "nvme";
|
|
|
|
return trans ? xstrdup(trans) : NULL;
|
|
}
|
|
|
|
static char *get_subsystems(struct blkdev_cxt *cxt)
|
|
{
|
|
char path[PATH_MAX];
|
|
char *sub, *chain, *res = NULL;
|
|
size_t len = 0, last = 0;
|
|
|
|
chain = sysfs_blkdev_get_devchain(cxt->sysfs, path, sizeof(path));
|
|
if (!chain)
|
|
return NULL;
|
|
|
|
while (sysfs_blkdev_next_subsystem(cxt->sysfs, chain, &sub) == 0) {
|
|
size_t sz;
|
|
|
|
/* don't create "block:scsi:scsi", but "block:scsi" */
|
|
if (len && strcmp(res + last, sub) == 0) {
|
|
free(sub);
|
|
continue;
|
|
}
|
|
|
|
sz = strlen(sub);
|
|
res = xrealloc(res, len + sz + 2);
|
|
if (len)
|
|
res[len++] = ':';
|
|
|
|
memcpy(res + len, sub, sz + 1);
|
|
last = len;
|
|
len += sz;
|
|
free(sub);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
#define is_parsable(_l) (scols_table_is_raw((_l)->table) || \
|
|
scols_table_is_export((_l)->table) || \
|
|
scols_table_is_json((_l)->table))
|
|
|
|
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);
|
|
if (p)
|
|
sysfs_devname_sys_to_dev(p);
|
|
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;
|
|
}
|
|
|
|
/* stores data to scols cell userdata (invisible and independent on output)
|
|
* to make the original values accessible for sort functions
|
|
*/
|
|
static void set_sortdata_u64(struct libscols_line *ln, int col, uint64_t x)
|
|
{
|
|
struct libscols_cell *ce = scols_line_get_cell(ln, col);
|
|
uint64_t *data;
|
|
|
|
if (!ce)
|
|
return;
|
|
data = xmalloc(sizeof(uint64_t));
|
|
*data = x;
|
|
scols_cell_set_userdata(ce, data);
|
|
}
|
|
|
|
static void set_sortdata_u64_from_string(struct libscols_line *ln, int col, const char *str)
|
|
{
|
|
uint64_t x;
|
|
|
|
if (!str || sscanf(str, "%"SCNu64, &x) != 1)
|
|
return;
|
|
|
|
set_sortdata_u64(ln, col, x);
|
|
}
|
|
|
|
static void unref_sortdata(struct libscols_table *tb)
|
|
{
|
|
struct libscols_iter *itr;
|
|
struct libscols_line *ln;
|
|
|
|
if (!tb || !lsblk->sort_col)
|
|
return;
|
|
itr = scols_new_iter(SCOLS_ITER_FORWARD);
|
|
if (!itr)
|
|
return;
|
|
while (scols_table_next_line(tb, itr, &ln) == 0) {
|
|
struct libscols_cell *ce = scols_line_get_column_cell(ln,
|
|
lsblk->sort_col);
|
|
void *data = scols_cell_get_userdata(ce);
|
|
free(data);
|
|
}
|
|
|
|
scols_free_iter(itr);
|
|
}
|
|
|
|
static char *get_vfs_attribute(struct blkdev_cxt *cxt, int id)
|
|
{
|
|
char *sizestr;
|
|
uint64_t vfs_attr = 0;
|
|
char *mnt;
|
|
|
|
if (!cxt->fsstat.f_blocks) {
|
|
mnt = get_device_mountpoint(cxt);
|
|
if (!mnt)
|
|
return NULL;
|
|
if (statvfs(mnt, &cxt->fsstat) != 0)
|
|
return NULL;
|
|
}
|
|
|
|
switch(id) {
|
|
case COL_FSSIZE:
|
|
vfs_attr = cxt->fsstat.f_frsize * cxt->fsstat.f_blocks;
|
|
break;
|
|
case COL_FSAVAIL:
|
|
vfs_attr = cxt->fsstat.f_frsize * cxt->fsstat.f_bavail;
|
|
break;
|
|
case COL_FSUSED:
|
|
vfs_attr = cxt->fsstat.f_frsize * (cxt->fsstat.f_blocks - cxt->fsstat.f_bfree);
|
|
break;
|
|
case COL_FSUSEPERC:
|
|
if (cxt->fsstat.f_blocks == 0)
|
|
return xstrdup("-");
|
|
|
|
xasprintf(&sizestr, "%.0f%%",
|
|
(double)(cxt->fsstat.f_blocks - cxt->fsstat.f_bfree) /
|
|
cxt->fsstat.f_blocks * 100);
|
|
return sizestr;
|
|
}
|
|
|
|
if (!vfs_attr)
|
|
sizestr = xstrdup("0");
|
|
else if (lsblk->bytes)
|
|
xasprintf(&sizestr, "%ju", vfs_attr);
|
|
else
|
|
sizestr = size_to_human_string(SIZE_SUFFIX_1LETTER, vfs_attr);
|
|
|
|
return sizestr;
|
|
}
|
|
|
|
|
|
static void set_scols_data(struct blkdev_cxt *cxt, int col, int id, struct libscols_line *ln)
|
|
{
|
|
int sort = 0, st_rc = 0;
|
|
char *str = NULL;
|
|
|
|
if (!cxt->st.st_rdev && (id == COL_OWNER || id == COL_GROUP ||
|
|
id == COL_MODE))
|
|
st_rc = stat(cxt->filename, &cxt->st);
|
|
|
|
if (lsblk->sort_id == id)
|
|
sort = 1;
|
|
|
|
switch(id) {
|
|
case COL_NAME:
|
|
str = cxt->dm_name ? mk_dm_name(cxt->dm_name) : mk_name(cxt->name);
|
|
break;
|
|
case COL_KNAME:
|
|
str = mk_name(cxt->name);
|
|
break;
|
|
case COL_PKNAME:
|
|
if (cxt->parent)
|
|
str = mk_name(cxt->parent->name);
|
|
break;
|
|
case COL_PATH:
|
|
if (cxt->filename)
|
|
str = xstrdup(cxt->filename);
|
|
break;
|
|
case COL_OWNER:
|
|
{
|
|
struct passwd *pw = st_rc ? NULL : getpwuid(cxt->st.st_uid);
|
|
if (pw)
|
|
str = xstrdup(pw->pw_name);
|
|
break;
|
|
}
|
|
case COL_GROUP:
|
|
{
|
|
struct group *gr = st_rc ? NULL : getgrgid(cxt->st.st_gid);
|
|
if (gr)
|
|
str = xstrdup(gr->gr_name);
|
|
break;
|
|
}
|
|
case COL_MODE:
|
|
{
|
|
char md[11];
|
|
|
|
if (!st_rc) {
|
|
xstrmode(cxt->st.st_mode, md);
|
|
str = xstrdup(md);
|
|
}
|
|
break;
|
|
}
|
|
case COL_MAJMIN:
|
|
if (is_parsable(lsblk))
|
|
xasprintf(&str, "%u:%u", cxt->maj, cxt->min);
|
|
else
|
|
xasprintf(&str, "%3u:%-3u", cxt->maj, cxt->min);
|
|
if (sort)
|
|
set_sortdata_u64(ln, col, makedev(cxt->maj, cxt->min));
|
|
break;
|
|
case COL_FSTYPE:
|
|
probe_device(cxt);
|
|
if (cxt->fstype)
|
|
str = xstrdup(cxt->fstype);
|
|
break;
|
|
case COL_FSSIZE:
|
|
case COL_FSAVAIL:
|
|
case COL_FSUSED:
|
|
case COL_FSUSEPERC:
|
|
str = get_vfs_attribute(cxt, id);
|
|
break;
|
|
case COL_TARGET:
|
|
str = xstrdup(get_device_mountpoint(cxt));
|
|
break;
|
|
case COL_LABEL:
|
|
probe_device(cxt);
|
|
if (cxt->label)
|
|
str = xstrdup(cxt->label);
|
|
break;
|
|
case COL_UUID:
|
|
probe_device(cxt);
|
|
if (cxt->uuid)
|
|
str = xstrdup(cxt->uuid);
|
|
break;
|
|
case COL_PTUUID:
|
|
probe_device(cxt);
|
|
if (cxt->ptuuid)
|
|
str = xstrdup(cxt->ptuuid);
|
|
break;
|
|
case COL_PTTYPE:
|
|
probe_device(cxt);
|
|
if (cxt->pttype)
|
|
str = xstrdup(cxt->pttype);
|
|
break;
|
|
case COL_PARTTYPE:
|
|
probe_device(cxt);
|
|
if (cxt->parttype)
|
|
str = xstrdup(cxt->parttype);
|
|
break;
|
|
case COL_PARTLABEL:
|
|
probe_device(cxt);
|
|
if (cxt->partlabel)
|
|
str = xstrdup(cxt->partlabel);
|
|
break;
|
|
case COL_PARTUUID:
|
|
probe_device(cxt);
|
|
if (cxt->partuuid)
|
|
str = xstrdup(cxt->partuuid);
|
|
break;
|
|
case COL_PARTFLAGS:
|
|
probe_device(cxt);
|
|
if (cxt->partflags)
|
|
str = xstrdup(cxt->partflags);
|
|
break;
|
|
case COL_WWN:
|
|
get_udev_properties(cxt);
|
|
if (cxt->wwn)
|
|
str = xstrdup(cxt->wwn);
|
|
break;
|
|
case COL_RA:
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/read_ahead_kb");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
break;
|
|
case COL_RO:
|
|
str = xstrdup(is_readonly_device(cxt) ? "1" : "0");
|
|
break;
|
|
case COL_RM:
|
|
ul_path_read_string(cxt->sysfs, &str, "removable");
|
|
if (!str && sysfs_blkdev_get_parent(cxt->sysfs))
|
|
ul_path_read_string(sysfs_blkdev_get_parent(cxt->sysfs),
|
|
&str,
|
|
"removable");
|
|
break;
|
|
case COL_HOTPLUG:
|
|
str = sysfs_blkdev_is_hotpluggable(cxt->sysfs) ? xstrdup("1") : xstrdup("0");
|
|
break;
|
|
case COL_ROTA:
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/rotational");
|
|
break;
|
|
case COL_RAND:
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/add_random");
|
|
break;
|
|
case COL_MODEL:
|
|
if (!cxt->partition && cxt->nslaves == 0) {
|
|
get_udev_properties(cxt);
|
|
if (cxt->model)
|
|
str = xstrdup(cxt->model);
|
|
else
|
|
ul_path_read_string(cxt->sysfs, &str, "device/model");
|
|
}
|
|
break;
|
|
case COL_SERIAL:
|
|
if (!cxt->partition && cxt->nslaves == 0) {
|
|
get_udev_properties(cxt);
|
|
if (cxt->serial)
|
|
str = xstrdup(cxt->serial);
|
|
else
|
|
ul_path_read_string(cxt->sysfs, &str, "device/serial");
|
|
}
|
|
break;
|
|
case COL_REV:
|
|
if (!cxt->partition && cxt->nslaves == 0)
|
|
ul_path_read_string(cxt->sysfs, &str, "device/rev");
|
|
break;
|
|
case COL_VENDOR:
|
|
if (!cxt->partition && cxt->nslaves == 0)
|
|
ul_path_read_string(cxt->sysfs, &str, "device/vendor");
|
|
break;
|
|
case COL_SIZE:
|
|
if (!cxt->size)
|
|
break;
|
|
if (lsblk->bytes)
|
|
xasprintf(&str, "%ju", cxt->size);
|
|
else
|
|
str = size_to_human_string(SIZE_SUFFIX_1LETTER, cxt->size);
|
|
if (sort)
|
|
set_sortdata_u64(ln, col, cxt->size);
|
|
break;
|
|
case COL_STATE:
|
|
if (!cxt->partition && !cxt->dm_name)
|
|
ul_path_read_string(cxt->sysfs, &str, "device/state");
|
|
else if (cxt->dm_name) {
|
|
int x = 0;
|
|
if (ul_path_read_s32(cxt->sysfs, &x, "dm/suspended") == 0)
|
|
str = xstrdup(x ? "suspended" : "running");
|
|
}
|
|
break;
|
|
case COL_ALIOFF:
|
|
ul_path_read_string(cxt->sysfs, &str, "alignment_offset");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
break;
|
|
case COL_MINIO:
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/minimum_io_size");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
break;
|
|
case COL_OPTIO:
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/optimal_io_size");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
break;
|
|
case COL_PHYSEC:
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/physical_block_size");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
break;
|
|
case COL_LOGSEC:
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/logical_block_size");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
break;
|
|
case COL_SCHED:
|
|
str = get_scheduler(cxt);
|
|
break;
|
|
case COL_RQ_SIZE:
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/nr_requests");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
break;
|
|
case COL_TYPE:
|
|
str = get_type(cxt);
|
|
break;
|
|
case COL_HCTL:
|
|
{
|
|
int h, c, t, l;
|
|
if (sysfs_blkdev_scsi_get_hctl(cxt->sysfs, &h, &c, &t, &l) == 0)
|
|
xasprintf(&str, "%d:%d:%d:%d", h, c, t, l);
|
|
break;
|
|
}
|
|
case COL_TRANSPORT:
|
|
str = get_transport(cxt);
|
|
break;
|
|
case COL_SUBSYS:
|
|
str = get_subsystems(cxt);
|
|
break;
|
|
case COL_DALIGN:
|
|
if (cxt->discard)
|
|
ul_path_read_string(cxt->sysfs, &str, "discard_alignment");
|
|
if (!str)
|
|
str = xstrdup("0");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
break;
|
|
case COL_DGRAN:
|
|
if (lsblk->bytes) {
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/discard_granularity");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
} else {
|
|
uint64_t x;
|
|
if (ul_path_read_u64(cxt->sysfs, &x, "queue/discard_granularity") == 0) {
|
|
str = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
|
|
if (sort)
|
|
set_sortdata_u64(ln, col, x);
|
|
}
|
|
}
|
|
break;
|
|
case COL_DMAX:
|
|
if (lsblk->bytes) {
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/discard_max_bytes");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
} else {
|
|
uint64_t x;
|
|
if (ul_path_read_u64(cxt->sysfs, &x, "queue/discard_max_bytes") == 0) {
|
|
str = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
|
|
if (sort)
|
|
set_sortdata_u64(ln, col, x);
|
|
}
|
|
}
|
|
break;
|
|
case COL_DZERO:
|
|
if (cxt->discard)
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/discard_zeroes_data");
|
|
if (!str)
|
|
str = xstrdup("0");
|
|
break;
|
|
case COL_WSAME:
|
|
if (lsblk->bytes) {
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/write_same_max_bytes");
|
|
if (sort)
|
|
set_sortdata_u64_from_string(ln, col, str);
|
|
} else {
|
|
uint64_t x;
|
|
|
|
if (ul_path_read_u64(cxt->sysfs, &x, "queue/write_same_max_bytes") == 0) {
|
|
str = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
|
|
if (sort)
|
|
set_sortdata_u64(ln, col, x);
|
|
}
|
|
}
|
|
if (!str)
|
|
str = xstrdup("0");
|
|
break;
|
|
case COL_ZONED:
|
|
ul_path_read_string(cxt->sysfs, &str, "queue/zoned");
|
|
break;
|
|
};
|
|
|
|
if (str && scols_line_refer_data(ln, col, str))
|
|
err(EXIT_FAILURE, _("failed to add output data"));
|
|
}
|
|
|
|
static void fill_table_line(struct blkdev_cxt *cxt, struct libscols_line *scols_parent)
|
|
{
|
|
size_t i;
|
|
|
|
cxt->scols_line = scols_table_new_line(lsblk->table, scols_parent);
|
|
if (!cxt->scols_line)
|
|
err(EXIT_FAILURE, _("failed to allocate output line"));
|
|
|
|
for (i = 0; i < ncolumns; i++)
|
|
set_scols_data(cxt, i, get_column_id(i), cxt->scols_line);
|
|
}
|
|
|
|
static int set_cxt(struct blkdev_cxt *cxt,
|
|
struct blkdev_cxt *parent,
|
|
struct blkdev_cxt *wholedisk,
|
|
const char *name)
|
|
{
|
|
dev_t devno;
|
|
|
|
DBG(CXT, ul_debugobj(cxt, "setting context for %s [parent=%p, wholedisk=%p]",
|
|
name, parent, wholedisk));
|
|
|
|
cxt->parent = parent;
|
|
cxt->name = xstrdup(name);
|
|
cxt->partition = wholedisk != NULL;
|
|
|
|
cxt->filename = get_device_path(cxt);
|
|
if (!cxt->filename) {
|
|
DBG(CXT, ul_debugobj(cxt, "%s: failed to get device path", cxt->name));
|
|
return -1;
|
|
}
|
|
DBG(CXT, ul_debugobj(cxt, "%s: filename=%s", cxt->name, cxt->filename));
|
|
|
|
devno = __sysfs_devname_to_devno(lsblk->sysroot, cxt->name, wholedisk ? wholedisk->name : NULL);
|
|
|
|
if (!devno) {
|
|
DBG(CXT, ul_debugobj(cxt, "%s: unknown device name", cxt->name));
|
|
return -1;
|
|
}
|
|
|
|
if (lsblk->inverse) {
|
|
cxt->sysfs = ul_new_sysfs_path(devno, wholedisk ? wholedisk->sysfs : NULL, lsblk->sysroot);
|
|
if (!cxt->sysfs) {
|
|
DBG(CXT, ul_debugobj(cxt, "%s: failed to initialize sysfs handler", cxt->name));
|
|
return -1;
|
|
}
|
|
if (parent)
|
|
sysfs_blkdev_set_parent(parent->sysfs, cxt->sysfs);
|
|
} else {
|
|
cxt->sysfs = ul_new_sysfs_path(devno, parent ? parent->sysfs : NULL, lsblk->sysroot);
|
|
if (!cxt->sysfs) {
|
|
DBG(CXT, ul_debugobj(cxt, "%s: failed to initialize sysfs handler", cxt->name));
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
cxt->maj = major(devno);
|
|
cxt->min = minor(devno);
|
|
cxt->size = 0;
|
|
|
|
if (ul_path_read_u64(cxt->sysfs, &cxt->size, "size") == 0) /* in sectors */
|
|
cxt->size <<= 9; /* in bytes */
|
|
|
|
if (ul_path_read_s32(cxt->sysfs, &cxt->discard,
|
|
"queue/discard_granularity") != 0)
|
|
cxt->discard = 0;
|
|
|
|
/* Ignore devices of zero size */
|
|
if (!lsblk->all_devices && cxt->size == 0) {
|
|
DBG(CXT, ul_debugobj(cxt, "zero size device -- ignore"));
|
|
return -1;
|
|
}
|
|
if (is_dm(cxt->name)) {
|
|
ul_path_read_string(cxt->sysfs, &cxt->dm_name, "dm/name");
|
|
if (!cxt->dm_name) {
|
|
DBG(CXT, ul_debugobj(cxt, "%s: failed to get dm name", cxt->name));
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
cxt->npartitions = sysfs_blkdev_count_partitions(cxt->sysfs, cxt->name);
|
|
cxt->nholders = ul_path_count_dirents(cxt->sysfs, "holders");
|
|
cxt->nslaves = ul_path_count_dirents(cxt->sysfs, "slaves");
|
|
|
|
DBG(CXT, ul_debugobj(cxt, "%s: npartitions=%d, nholders=%d, nslaves=%d",
|
|
cxt->name, cxt->npartitions, cxt->nholders, cxt->nslaves));
|
|
|
|
/* ignore non-SCSI devices */
|
|
if (lsblk->scsi && sysfs_blkdev_scsi_get_hctl(cxt->sysfs, NULL, NULL, NULL, NULL)) {
|
|
DBG(CXT, ul_debugobj(cxt, "non-scsi device -- ignore"));
|
|
return -1;
|
|
}
|
|
|
|
DBG(CXT, ul_debugobj(cxt, "%s: context successfully initialized", cxt->name));
|
|
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 = { NULL };
|
|
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;
|
|
|
|
DBG(CXT, ul_debugobj(wholedisk_cxt, "probe whole-disk for partitions"));
|
|
|
|
dir = ul_path_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_blkdev_is_partition_dirent(dir, d, wholedisk_cxt->name)))
|
|
continue;
|
|
|
|
DBG(CXT, ul_debugobj(wholedisk_cxt, " checking %s", d->d_name));
|
|
|
|
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;
|
|
fill_table_line(&part_cxt, parent_cxt ? parent_cxt->scols_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)
|
|
fill_table_line(wholedisk_cxt, parent_cxt ? parent_cxt->scols_line : NULL);
|
|
if (ps == 0 && !lsblk->nodeps)
|
|
process_blkdev(&part_cxt, wholedisk_cxt, 0, NULL);
|
|
}
|
|
next:
|
|
reset_blkdev_cxt(&part_cxt);
|
|
r = 0;
|
|
}
|
|
|
|
DBG(CXT, ul_debugobj(wholedisk_cxt, "probe whole-disk for partitions -- done"));
|
|
closedir(dir);
|
|
return r;
|
|
}
|
|
|
|
static int get_wholedisk_from_partition_dirent(DIR *dir,
|
|
struct dirent *d, struct blkdev_cxt *cxt)
|
|
{
|
|
char path[PATH_MAX];
|
|
char *p;
|
|
int len;
|
|
|
|
if ((len = readlinkat(dirfd(dir), 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 = { NULL };
|
|
const char *depname;
|
|
|
|
assert(cxt);
|
|
|
|
if (lsblk->nodeps)
|
|
return 0;
|
|
|
|
DBG(CXT, ul_debugobj(cxt, "%s: list dependencies", cxt->name));
|
|
|
|
if (!(lsblk->inverse ? cxt->nslaves : cxt->nholders))
|
|
return 0;
|
|
|
|
depname = lsblk->inverse ? "slaves" : "holders";
|
|
dir = ul_path_opendir(cxt->sysfs, depname);
|
|
if (!dir)
|
|
return 0;
|
|
|
|
DBG(CXT, ul_debugobj(cxt, "%s: checking for '%s' dependence", cxt->name, depname));
|
|
|
|
while ((d = xreaddir(dir))) {
|
|
/* Is the dependency a partition? */
|
|
if (sysfs_blkdev_is_partition_dirent(dir, d, NULL)) {
|
|
if (!get_wholedisk_from_partition_dirent(dir, d, &dep)) {
|
|
DBG(CXT, ul_debugobj(cxt, "%s: %s: dependence is partition",
|
|
cxt->name, d->d_name));
|
|
process_blkdev(&dep, cxt, 1, d->d_name);
|
|
}
|
|
}
|
|
/* The dependency is a whole device. */
|
|
else if (!set_cxt(&dep, cxt, NULL, d->d_name)) {
|
|
DBG(CXT, ul_debugobj(cxt, "%s: %s: dependence is whole-disk",
|
|
cxt->name, d->d_name));
|
|
/* For inverse tree we don't want to show partitions
|
|
* if the dependence is on whole-disk */
|
|
process_blkdev(&dep, cxt, lsblk->inverse ? 0 : 1, NULL);
|
|
}
|
|
reset_blkdev_cxt(&dep);
|
|
}
|
|
closedir(dir);
|
|
|
|
DBG(CXT, ul_debugobj(cxt, "%s: checking for '%s' -- done", cxt->name, depname));
|
|
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)
|
|
list_partitions(cxt, parent, part_name); /* partitions + whole-disk */
|
|
else
|
|
fill_table_line(cxt, parent ? parent->scols_line : NULL); /* whole-disk only */
|
|
|
|
return list_deps(cxt);
|
|
}
|
|
|
|
/* Iterate devices in sysfs */
|
|
static int iterate_block_devices(void)
|
|
{
|
|
DIR *dir;
|
|
struct dirent *d;
|
|
struct blkdev_cxt cxt = { NULL };
|
|
struct path_cxt *pc = ul_new_path(_PATH_SYS_BLOCK);
|
|
|
|
if (!pc)
|
|
err(EXIT_FAILURE, _("failed to allocate /sys handler"));
|
|
|
|
ul_path_set_prefix(pc, lsblk->sysroot);
|
|
|
|
/* TODO: reuse @pc in set_cxt(), etc. */
|
|
dir = ul_path_opendir(pc, NULL);
|
|
if (!dir)
|
|
goto done;
|
|
|
|
DBG(DEV, ul_debug("iterate on " _PATH_SYS_BLOCK));
|
|
|
|
while ((d = xreaddir(dir))) {
|
|
|
|
DBG(DEV, ul_debug(" %s dentry", d->d_name));
|
|
|
|
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);
|
|
done:
|
|
ul_unref_path(pc);
|
|
DBG(DEV, ul_debug("iterate on " _PATH_SYS_BLOCK " -- done"));
|
|
return 0;
|
|
}
|
|
|
|
static int process_one_device(char *devname)
|
|
{
|
|
struct blkdev_cxt parent = { NULL }, cxt = { NULL };
|
|
struct stat st;
|
|
char buf[PATH_MAX + 1], *name = NULL, *diskname = NULL;
|
|
dev_t disk = 0;
|
|
int real_part = 0, rc = -EINVAL;
|
|
|
|
if (stat(devname, &st) || !S_ISBLK(st.st_mode)) {
|
|
warnx(_("%s: not a block device"), devname);
|
|
goto leave;
|
|
}
|
|
|
|
/* TODO: sysfs_devno_to_devname() internally initializes path_cxt, it
|
|
* would be better to use ul_new_sysfs_path() + sysfs_blkdev_get_name()
|
|
* and reuse path_cxt for set_cxt()
|
|
*/
|
|
name = sysfs_devno_to_devname(st.st_rdev, buf, sizeof(buf));
|
|
if (!name) {
|
|
warn(_("%s: failed to get sysfs name"), devname);
|
|
goto leave;
|
|
}
|
|
name = xstrdup(name);
|
|
|
|
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);
|
|
goto leave;
|
|
}
|
|
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);
|
|
}
|
|
|
|
rc = 0;
|
|
leave:
|
|
free(name);
|
|
reset_blkdev_cxt(&cxt);
|
|
|
|
if (real_part)
|
|
reset_blkdev_cxt(&parent);
|
|
|
|
return rc;
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* see set_sortdata_u64() and columns initialization in main()
|
|
*/
|
|
static int cmp_u64_cells(struct libscols_cell *a,
|
|
struct libscols_cell *b,
|
|
__attribute__((__unused__)) void *data)
|
|
{
|
|
uint64_t *adata = (uint64_t *) scols_cell_get_userdata(a),
|
|
*bdata = (uint64_t *) scols_cell_get_userdata(b);
|
|
|
|
if (adata == NULL && bdata == NULL)
|
|
return 0;
|
|
if (adata == NULL)
|
|
return -1;
|
|
if (bdata == NULL)
|
|
return 1;
|
|
return *adata == *bdata ? 0 : *adata >= *bdata ? 1 : -1;
|
|
}
|
|
|
|
static void __attribute__((__noreturn__)) usage(void)
|
|
{
|
|
FILE *out = stdout;
|
|
size_t i;
|
|
|
|
fputs(USAGE_HEADER, out);
|
|
fprintf(out, _(" %s [options] [<device> ...]\n"), program_invocation_short_name);
|
|
|
|
fputs(USAGE_SEPARATOR, out);
|
|
fputs(_("List information about block devices.\n"), out);
|
|
|
|
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(_(" -z, --zoned print zone model\n"), out);
|
|
fputs(_(" -e, --exclude <list> exclude devices by major number (default: RAM disks)\n"), out);
|
|
fputs(_(" -f, --fs output info about filesystems\n"), out);
|
|
fputs(_(" -i, --ascii use ascii characters only\n"), out);
|
|
fputs(_(" -I, --include <list> show only devices with specified major numbers\n"), out);
|
|
fputs(_(" -J, --json use JSON output format\n"), out);
|
|
fputs(_(" -l, --list use list format output\n"), out);
|
|
fputs(_(" -T, --tree use tree format output\n"), out);
|
|
fputs(_(" -m, --perms output info about permissions\n"), out);
|
|
fputs(_(" -n, --noheadings don't print headings\n"), out);
|
|
fputs(_(" -o, --output <list> output columns\n"), out);
|
|
fputs(_(" -O, --output-all output all 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(_(" -S, --scsi output info about SCSI devices\n"), out);
|
|
fputs(_(" -t, --topology output info about topology\n"), out);
|
|
fputs(_(" -x, --sort <column> sort output by <column>\n"), out);
|
|
fputs(_(" --sysroot <dir> use specified directory as system root\n"), out);
|
|
fputs(USAGE_SEPARATOR, out);
|
|
printf(USAGE_HELP_OPTIONS(22));
|
|
|
|
fprintf(out, USAGE_COLUMNS);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(infos); i++)
|
|
fprintf(out, " %11s %s\n", infos[i].name, _(infos[i].help));
|
|
|
|
printf(USAGE_MAN_TAIL("lsblk(8)"));
|
|
|
|
exit(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 = { .sort_id = -1, .flags = LSBLK_TREE };
|
|
int c, status = EXIT_FAILURE;
|
|
char *outarg = NULL;
|
|
size_t i;
|
|
int force_tree = 0;
|
|
|
|
enum {
|
|
OPT_SYSROOT = CHAR_MAX + 1
|
|
};
|
|
|
|
static const struct option longopts[] = {
|
|
{ "all", no_argument, NULL, 'a' },
|
|
{ "bytes", no_argument, NULL, 'b' },
|
|
{ "nodeps", no_argument, NULL, 'd' },
|
|
{ "discard", no_argument, NULL, 'D' },
|
|
{ "zoned", no_argument, NULL, 'z' },
|
|
{ "help", no_argument, NULL, 'h' },
|
|
{ "json", no_argument, NULL, 'J' },
|
|
{ "output", required_argument, NULL, 'o' },
|
|
{ "output-all", no_argument, NULL, 'O' },
|
|
{ "perms", no_argument, NULL, 'm' },
|
|
{ "noheadings", no_argument, NULL, 'n' },
|
|
{ "list", no_argument, NULL, 'l' },
|
|
{ "ascii", no_argument, NULL, 'i' },
|
|
{ "raw", no_argument, NULL, 'r' },
|
|
{ "inverse", no_argument, NULL, 's' },
|
|
{ "fs", no_argument, NULL, 'f' },
|
|
{ "exclude", required_argument, NULL, 'e' },
|
|
{ "include", required_argument, NULL, 'I' },
|
|
{ "topology", no_argument, NULL, 't' },
|
|
{ "paths", no_argument, NULL, 'p' },
|
|
{ "pairs", no_argument, NULL, 'P' },
|
|
{ "scsi", no_argument, NULL, 'S' },
|
|
{ "sort", required_argument, NULL, 'x' },
|
|
{ "sysroot", required_argument, NULL, OPT_SYSROOT },
|
|
{ "tree", no_argument, NULL, 'T' },
|
|
{ "version", no_argument, NULL, 'V' },
|
|
{ NULL, 0, NULL, 0 },
|
|
};
|
|
|
|
static const ul_excl_t excl[] = { /* rows and cols in ASCII order */
|
|
{ 'D','O' },
|
|
{ 'I','e' },
|
|
{ 'J', 'P', 'r' },
|
|
{ 'O','S' },
|
|
{ 'O','f' },
|
|
{ 'O','m' },
|
|
{ 'O','t' },
|
|
{ 'P','T', '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;
|
|
|
|
lsblk_init_debug();
|
|
|
|
while((c = getopt_long(argc, argv,
|
|
"abdDze:fhJlnmo:OpPiI:rstVSTx:", 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':
|
|
add_uniq_column(COL_NAME);
|
|
add_uniq_column(COL_DALIGN);
|
|
add_uniq_column(COL_DGRAN);
|
|
add_uniq_column(COL_DMAX);
|
|
add_uniq_column(COL_DZERO);
|
|
break;
|
|
case 'z':
|
|
add_uniq_column(COL_NAME);
|
|
add_uniq_column(COL_ZONED);
|
|
break;
|
|
case 'e':
|
|
parse_excludes(optarg);
|
|
break;
|
|
case 'h':
|
|
usage();
|
|
break;
|
|
case 'J':
|
|
lsblk->flags |= LSBLK_JSON;
|
|
break;
|
|
case 'l':
|
|
lsblk->flags &= ~LSBLK_TREE; /* disable the default */
|
|
break;
|
|
case 'n':
|
|
lsblk->flags |= LSBLK_NOHEADINGS;
|
|
break;
|
|
case 'o':
|
|
outarg = optarg;
|
|
break;
|
|
case 'O':
|
|
for (ncolumns = 0 ; ncolumns < ARRAY_SIZE(infos); ncolumns++)
|
|
columns[ncolumns] = ncolumns;
|
|
break;
|
|
case 'p':
|
|
lsblk->paths = 1;
|
|
break;
|
|
case 'P':
|
|
lsblk->flags |= LSBLK_EXPORT;
|
|
lsblk->flags &= ~LSBLK_TREE; /* disable the default */
|
|
break;
|
|
case 'i':
|
|
lsblk->flags |= LSBLK_ASCII;
|
|
break;
|
|
case 'I':
|
|
parse_includes(optarg);
|
|
break;
|
|
case 'r':
|
|
lsblk->flags &= ~LSBLK_TREE; /* disable the default */
|
|
lsblk->flags |= LSBLK_RAW; /* enable raw */
|
|
break;
|
|
case 's':
|
|
lsblk->inverse = 1;
|
|
break;
|
|
case 'f':
|
|
add_uniq_column(COL_NAME);
|
|
add_uniq_column(COL_FSTYPE);
|
|
add_uniq_column(COL_LABEL);
|
|
add_uniq_column(COL_UUID);
|
|
add_uniq_column(COL_FSAVAIL);
|
|
add_uniq_column(COL_FSUSEPERC);
|
|
add_uniq_column(COL_TARGET);
|
|
break;
|
|
case 'm':
|
|
add_uniq_column(COL_NAME);
|
|
add_uniq_column(COL_SIZE);
|
|
add_uniq_column(COL_OWNER);
|
|
add_uniq_column(COL_GROUP);
|
|
add_uniq_column(COL_MODE);
|
|
break;
|
|
case 't':
|
|
add_uniq_column(COL_NAME);
|
|
add_uniq_column(COL_ALIOFF);
|
|
add_uniq_column(COL_MINIO);
|
|
add_uniq_column(COL_OPTIO);
|
|
add_uniq_column(COL_PHYSEC);
|
|
add_uniq_column(COL_LOGSEC);
|
|
add_uniq_column(COL_ROTA);
|
|
add_uniq_column(COL_SCHED);
|
|
add_uniq_column(COL_RQ_SIZE);
|
|
add_uniq_column(COL_RA);
|
|
add_uniq_column(COL_WSAME);
|
|
break;
|
|
case 'S':
|
|
lsblk->nodeps = 1;
|
|
lsblk->scsi = 1;
|
|
add_uniq_column(COL_NAME);
|
|
add_uniq_column(COL_HCTL);
|
|
add_uniq_column(COL_TYPE);
|
|
add_uniq_column(COL_VENDOR);
|
|
add_uniq_column(COL_MODEL);
|
|
add_uniq_column(COL_REV);
|
|
add_uniq_column(COL_TRANSPORT);
|
|
break;
|
|
case 'T':
|
|
force_tree = 1;
|
|
break;
|
|
|
|
case OPT_SYSROOT:
|
|
lsblk->sysroot = optarg;
|
|
break;
|
|
case 'V':
|
|
printf(UTIL_LINUX_VERSION);
|
|
return EXIT_SUCCESS;
|
|
case 'x':
|
|
lsblk->flags &= ~LSBLK_TREE; /* disable the default */
|
|
lsblk->sort_id = column_name_to_id(optarg, strlen(optarg));
|
|
if (lsblk->sort_id >= 0)
|
|
break;
|
|
/* fallthrough */
|
|
default:
|
|
errtryhelp(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
if (force_tree)
|
|
lsblk->flags |= LSBLK_TREE;
|
|
|
|
check_sysdevblock();
|
|
|
|
if (!ncolumns) {
|
|
add_column(COL_NAME);
|
|
add_column(COL_MAJMIN);
|
|
add_column(COL_RM);
|
|
add_column(COL_SIZE);
|
|
add_column(COL_RO);
|
|
add_column(COL_TYPE);
|
|
add_column(COL_TARGET);
|
|
}
|
|
|
|
if (outarg && string_add_to_idarray(outarg, columns, ARRAY_SIZE(columns),
|
|
&ncolumns, column_name_to_id) < 0)
|
|
return EXIT_FAILURE;
|
|
|
|
if (lsblk->all_devices == 0 && nexcludes == 0 && nincludes == 0)
|
|
excludes[nexcludes++] = 1; /* default: ignore RAM disks */
|
|
|
|
if (lsblk->sort_id < 0)
|
|
/* Since Linux 4.8 we have sort devices by default, because
|
|
* /sys is no more sorted */
|
|
lsblk->sort_id = COL_MAJMIN;
|
|
|
|
/* For --inverse --list we still follow parent->child relation */
|
|
if (lsblk->inverse && !(lsblk->flags & LSBLK_TREE))
|
|
lsblk->force_tree_order = 1;
|
|
|
|
if (lsblk->sort_id >= 0 && column_id_to_number(lsblk->sort_id) < 0) {
|
|
/* the sort column is not between output columns -- add as hidden */
|
|
add_column(lsblk->sort_id);
|
|
lsblk->sort_hidden = 1;
|
|
}
|
|
|
|
mnt_init_debug(0);
|
|
scols_init_debug(0);
|
|
ul_path_init_debug();
|
|
|
|
/*
|
|
* initialize output columns
|
|
*/
|
|
if (!(lsblk->table = scols_new_table()))
|
|
errx(EXIT_FAILURE, _("failed to allocate output table"));
|
|
scols_table_enable_raw(lsblk->table, !!(lsblk->flags & LSBLK_RAW));
|
|
scols_table_enable_export(lsblk->table, !!(lsblk->flags & LSBLK_EXPORT));
|
|
scols_table_enable_ascii(lsblk->table, !!(lsblk->flags & LSBLK_ASCII));
|
|
scols_table_enable_json(lsblk->table, !!(lsblk->flags & LSBLK_JSON));
|
|
scols_table_enable_noheadings(lsblk->table, !!(lsblk->flags & LSBLK_NOHEADINGS));
|
|
|
|
if (lsblk->flags & LSBLK_JSON)
|
|
scols_table_set_name(lsblk->table, "blockdevices");
|
|
|
|
for (i = 0; i < ncolumns; i++) {
|
|
struct colinfo *ci = get_column_info(i);
|
|
struct libscols_column *cl;
|
|
int id = get_column_id(i), fl = ci->flags;
|
|
|
|
if (!(lsblk->flags & LSBLK_TREE) && id == COL_NAME)
|
|
fl &= ~SCOLS_FL_TREE;
|
|
if (lsblk->sort_hidden && lsblk->sort_id == id)
|
|
fl |= SCOLS_FL_HIDDEN;
|
|
|
|
cl = scols_table_new_column(lsblk->table, ci->name, ci->whint, fl);
|
|
if (!cl) {
|
|
warn(_("failed to allocate output column"));
|
|
goto leave;
|
|
}
|
|
if (!lsblk->sort_col && lsblk->sort_id == id) {
|
|
lsblk->sort_col = cl;
|
|
scols_column_set_cmpfunc(cl,
|
|
ci->type == COLTYPE_NUM ? cmp_u64_cells :
|
|
ci->type == COLTYPE_SIZE ? cmp_u64_cells :
|
|
ci->type == COLTYPE_SORTNUM ? cmp_u64_cells : scols_cmpstr_cells,
|
|
NULL);
|
|
}
|
|
if (lsblk->flags & LSBLK_JSON) {
|
|
switch (ci->type) {
|
|
case COLTYPE_SIZE:
|
|
if (!lsblk->bytes)
|
|
break;
|
|
/* fallthrough */
|
|
case COLTYPE_NUM:
|
|
scols_column_set_json_type(cl, SCOLS_JSON_NUMBER);
|
|
break;
|
|
case COLTYPE_BOOL:
|
|
scols_column_set_json_type(cl, SCOLS_JSON_BOOLEAN);
|
|
break;
|
|
default:
|
|
scols_column_set_json_type(cl, SCOLS_JSON_STRING);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (optind == argc)
|
|
status = iterate_block_devices() == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
else {
|
|
int cnt = 0, cnt_err = 0;
|
|
|
|
while (optind < argc) {
|
|
if (process_one_device(argv[optind++]) != 0)
|
|
cnt_err++;
|
|
cnt++;
|
|
}
|
|
status = cnt == 0 ? EXIT_FAILURE : /* nothing */
|
|
cnt == cnt_err ? LSBLK_EXIT_ALLFAILED :/* all failed */
|
|
cnt_err ? LSBLK_EXIT_SOMEOK : /* some ok */
|
|
EXIT_SUCCESS; /* all success */
|
|
}
|
|
|
|
if (lsblk->sort_col)
|
|
scols_sort_table(lsblk->table, lsblk->sort_col);
|
|
if (lsblk->force_tree_order)
|
|
scols_sort_table_by_tree(lsblk->table);
|
|
|
|
scols_print_table(lsblk->table);
|
|
|
|
leave:
|
|
if (lsblk->sort_col)
|
|
unref_sortdata(lsblk->table);
|
|
|
|
scols_unref_table(lsblk->table);
|
|
|
|
mnt_unref_table(mtab);
|
|
mnt_unref_table(swaps);
|
|
mnt_unref_cache(mntcache);
|
|
#ifdef HAVE_LIBUDEV
|
|
udev_unref(udev);
|
|
#endif
|
|
return status;
|
|
}
|