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lsblk.c
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/*
* lsblk(8) - list block devices
*
* Copyright (C) 2010-2018 Red Hat, Inc. All rights reserved.
* Written by Milan Broz <[email protected]>
* Karel Zak <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <errno.h>
#include <getopt.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <fcntl.h>
#include <string.h>
#include <sys/ioctl.h>
#include <stdarg.h>
#include <locale.h>
#include <pwd.h>
#include <grp.h>
#include <ctype.h>
#include <assert.h>
#include <blkid.h>
#include "c.h"
#include "pathnames.h"
#include "blkdev.h"
#include "canonicalize.h"
#include "nls.h"
#include "xalloc.h"
#include "strutils.h"
#include "sysfs.h"
#include "closestream.h"
#include "optutils.h"
#include "lsblk.h"
UL_DEBUG_DEFINE_MASK(lsblk);
UL_DEBUG_DEFINE_MASKNAMES(lsblk) = UL_DEBUG_EMPTY_MASKNAMES;
#define LSBLK_EXIT_SOMEOK 64
#define LSBLK_EXIT_ALLFAILED 32
static int column_id_to_number(int id);
/* column IDs */
enum {
COL_NAME = 0,
COL_KNAME,
COL_PATH,
COL_MAJMIN,
COL_FSAVAIL,
COL_FSSIZE,
COL_FSTYPE,
COL_FSUSED,
COL_FSUSEPERC,
COL_TARGET,
COL_LABEL,
COL_UUID,
COL_PTUUID,
COL_PTTYPE,
COL_PARTTYPE,
COL_PARTLABEL,
COL_PARTUUID,
COL_PARTFLAGS,
COL_RA,
COL_RO,
COL_RM,
COL_HOTPLUG,
COL_MODEL,
COL_SERIAL,
COL_SIZE,
COL_STATE,
COL_OWNER,
COL_GROUP,
COL_MODE,
COL_ALIOFF,
COL_MINIO,
COL_OPTIO,
COL_PHYSEC,
COL_LOGSEC,
COL_ROTA,
COL_SCHED,
COL_RQ_SIZE,
COL_TYPE,
COL_DALIGN,
COL_DGRAN,
COL_DMAX,
COL_DZERO,
COL_WSAME,
COL_WWN,
COL_RAND,
COL_PKNAME,
COL_HCTL,
COL_TRANSPORT,
COL_SUBSYS,
COL_REV,
COL_VENDOR,
COL_ZONED,
};
/* basic table settings */
enum {
LSBLK_ASCII = (1 << 0),
LSBLK_RAW = (1 << 1),
LSBLK_NOHEADINGS = (1 << 2),
LSBLK_EXPORT = (1 << 3),
LSBLK_TREE = (1 << 4),
LSBLK_JSON = (1 << 5),
};
/* Types used for qsort() and JSON */
enum {
COLTYPE_STR = 0, /* default */
COLTYPE_NUM = 1, /* always u64 number */
COLTYPE_SORTNUM = 2, /* string on output, u64 for qsort() */
COLTYPE_SIZE = 3, /* srring by default, number when --bytes */
COLTYPE_BOOL = 4 /* 0 or 1 */
};
/* column names */
struct colinfo {
const char *name; /* header */
double whint; /* width hint (N < 1 is in percent of termwidth) */
int flags; /* SCOLS_FL_* */
const char *help;
int type; /* COLTYPE_* */
};
/* columns descriptions */
static struct colinfo infos[] = {
[COL_NAME] = { "NAME", 0.25, SCOLS_FL_TREE | SCOLS_FL_NOEXTREMES, N_("device name") },
[COL_KNAME] = { "KNAME", 0.3, 0, N_("internal kernel device name") },
[COL_PKNAME] = { "PKNAME", 0.3, 0, N_("internal parent kernel device name") },
[COL_PATH] = { "PATH", 0.3, 0, N_("path to the device node") },
[COL_MAJMIN] = { "MAJ:MIN", 6, 0, N_("major:minor device number"), COLTYPE_SORTNUM },
[COL_FSAVAIL] = { "FSAVAIL", 5, SCOLS_FL_RIGHT, N_("filesystem size available") },
[COL_FSSIZE] = { "FSSIZE", 5, SCOLS_FL_RIGHT, N_("filesystem size") },
[COL_FSTYPE] = { "FSTYPE", 0.1, SCOLS_FL_TRUNC, N_("filesystem type") },
[COL_FSUSED] = { "FSUSED", 5, SCOLS_FL_RIGHT, N_("filesystem size used") },
[COL_FSUSEPERC] = { "FSUSE%", 3, SCOLS_FL_RIGHT, N_("filesystem use percentage") },
[COL_TARGET] = { "MOUNTPOINT", 0.10, SCOLS_FL_TRUNC, N_("where the device is mounted") },
[COL_LABEL] = { "LABEL", 0.1, 0, N_("filesystem LABEL") },
[COL_UUID] = { "UUID", 36, 0, N_("filesystem UUID") },
[COL_PTUUID] = { "PTUUID", 36, 0, N_("partition table identifier (usually UUID)") },
[COL_PTTYPE] = { "PTTYPE", 0.1, 0, N_("partition table type") },
[COL_PARTTYPE] = { "PARTTYPE", 36, 0, N_("partition type UUID") },
[COL_PARTLABEL] = { "PARTLABEL", 0.1, 0, N_("partition LABEL") },
[COL_PARTUUID] = { "PARTUUID", 36, 0, N_("partition UUID") },
[COL_PARTFLAGS] = { "PARTFLAGS", 36, 0, N_("partition flags") },
[COL_RA] = { "RA", 3, SCOLS_FL_RIGHT, N_("read-ahead of the device"), COLTYPE_NUM },
[COL_RO] = { "RO", 1, SCOLS_FL_RIGHT, N_("read-only device"), COLTYPE_BOOL },
[COL_RM] = { "RM", 1, SCOLS_FL_RIGHT, N_("removable device"), COLTYPE_BOOL },
[COL_HOTPLUG]= { "HOTPLUG", 1, SCOLS_FL_RIGHT, N_("removable or hotplug device (usb, pcmcia, ...)"), COLTYPE_BOOL },
[COL_ROTA] = { "ROTA", 1, SCOLS_FL_RIGHT, N_("rotational device"), COLTYPE_BOOL },
[COL_RAND] = { "RAND", 1, SCOLS_FL_RIGHT, N_("adds randomness"), COLTYPE_BOOL },
[COL_MODEL] = { "MODEL", 0.1, SCOLS_FL_TRUNC, N_("device identifier") },
[COL_SERIAL] = { "SERIAL", 0.1, SCOLS_FL_TRUNC, N_("disk serial number") },
[COL_SIZE] = { "SIZE", 5, SCOLS_FL_RIGHT, N_("size of the device"), COLTYPE_SIZE },
[COL_STATE] = { "STATE", 7, SCOLS_FL_TRUNC, N_("state of the device") },
[COL_OWNER] = { "OWNER", 0.1, SCOLS_FL_TRUNC, N_("user name"), },
[COL_GROUP] = { "GROUP", 0.1, SCOLS_FL_TRUNC, N_("group name") },
[COL_MODE] = { "MODE", 10, 0, N_("device node permissions") },
[COL_ALIOFF] = { "ALIGNMENT", 6, SCOLS_FL_RIGHT, N_("alignment offset"), COLTYPE_NUM },
[COL_MINIO] = { "MIN-IO", 6, SCOLS_FL_RIGHT, N_("minimum I/O size"), COLTYPE_NUM },
[COL_OPTIO] = { "OPT-IO", 6, SCOLS_FL_RIGHT, N_("optimal I/O size"), COLTYPE_NUM },
[COL_PHYSEC] = { "PHY-SEC", 7, SCOLS_FL_RIGHT, N_("physical sector size"), COLTYPE_NUM },
[COL_LOGSEC] = { "LOG-SEC", 7, SCOLS_FL_RIGHT, N_("logical sector size"), COLTYPE_NUM },
[COL_SCHED] = { "SCHED", 0.1, 0, N_("I/O scheduler name") },
[COL_RQ_SIZE]= { "RQ-SIZE", 5, SCOLS_FL_RIGHT, N_("request queue size"), COLTYPE_NUM },
[COL_TYPE] = { "TYPE", 4, 0, N_("device type") },
[COL_DALIGN] = { "DISC-ALN", 6, SCOLS_FL_RIGHT, N_("discard alignment offset"), COLTYPE_NUM },
[COL_DGRAN] = { "DISC-GRAN", 6, SCOLS_FL_RIGHT, N_("discard granularity"), COLTYPE_SIZE },
[COL_DMAX] = { "DISC-MAX", 6, SCOLS_FL_RIGHT, N_("discard max bytes"), COLTYPE_SIZE },
[COL_DZERO] = { "DISC-ZERO", 1, SCOLS_FL_RIGHT, N_("discard zeroes data"), COLTYPE_BOOL },
[COL_WSAME] = { "WSAME", 6, SCOLS_FL_RIGHT, N_("write same max bytes"), COLTYPE_SIZE },
[COL_WWN] = { "WWN", 18, 0, N_("unique storage identifier") },
[COL_HCTL] = { "HCTL", 10, 0, N_("Host:Channel:Target:Lun for SCSI") },
[COL_TRANSPORT] = { "TRAN", 6, 0, N_("device transport type") },
[COL_SUBSYS] = { "SUBSYSTEMS", 0.1, SCOLS_FL_NOEXTREMES, N_("de-duplicated chain of subsystems") },
[COL_REV] = { "REV", 4, SCOLS_FL_RIGHT, N_("device revision") },
[COL_VENDOR] = { "VENDOR", 0.1, SCOLS_FL_TRUNC, N_("device vendor") },
[COL_ZONED] = { "ZONED", 0.3, 0, N_("zone model") },
};
struct lsblk *lsblk; /* global handler */
/*
* columns[] array specifies all currently wanted output column. The columns
* are defined by infos[] array and you can specify (on command line) each
* column twice. That's enough, dynamically allocated array of the columns is
* unnecessary overkill and over-engineering in this case
*/
static int columns[ARRAY_SIZE(infos) * 2];
static size_t ncolumns;
static inline void add_column(int id)
{
if (ncolumns >= ARRAY_SIZE(columns))
errx(EXIT_FAILURE, _("too many columns specified, "
"the limit is %zu columns"),
ARRAY_SIZE(columns) - 1);
columns[ ncolumns++ ] = id;
}
static inline void add_uniq_column(int id)
{
if (column_id_to_number(id) < 0)
add_column(id);
}
static void lsblk_init_debug(void)
{
__UL_INIT_DEBUG_FROM_ENV(lsblk, LSBLK_DEBUG_, 0, LSBLK_DEBUG);
}
/*
* exclude/include devices filter based on major device numbers
*/
static int excludes[256];
static size_t nexcludes;
static int includes[256];
static size_t nincludes;
static int is_maj_excluded(int maj)
{
size_t i;
assert(ARRAY_SIZE(excludes) > nexcludes);
if (!nexcludes)
return 0; /* filter not enabled, device not excluded */
for (i = 0; i < nexcludes; i++) {
if (excludes[i] == maj) {
DBG(FILTER, ul_debug("exclude: maj=%d", maj));
return 1;
}
}
return 0;
}
static int is_maj_included(int maj)
{
size_t i;
assert(ARRAY_SIZE(includes) > nincludes);
if (!nincludes)
return 1; /* filter not enabled, device is included */
for (i = 0; i < nincludes; i++) {
if (includes[i] == maj) {
DBG(FILTER, ul_debug("include: maj=%d", maj));
return 1;
}
}
return 0;
}
/* Converts column sequential number to column ID (COL_*) */
static int get_column_id(int num)
{
assert(num >= 0);
assert((size_t) num < ncolumns);
assert(columns[num] < (int) ARRAY_SIZE(infos));
return columns[num];
}
/* Returns column description for the column sequential number */
static struct colinfo *get_column_info(int num)
{
return &infos[ get_column_id(num) ];
}
/* Converts column name (as defined in the infos[] to the column ID */
static int column_name_to_id(const char *name, size_t namesz)
{
size_t i;
for (i = 0; i < ARRAY_SIZE(infos); i++) {
const char *cn = infos[i].name;
if (!strncasecmp(name, cn, namesz) && !*(cn + namesz))
return i;
}
warnx(_("unknown column: %s"), name);
return -1;
}
/* Converts column ID (COL_*) to column sequential number */
static int column_id_to_number(int id)
{
size_t i;
for (i = 0; i < ncolumns; i++)
if (columns[i] == id)
return i;
return -1;
}
/* Checks for DM prefix in the device name */
static int is_dm(const char *name)
{
return strncmp(name, "dm-", 3) ? 0 : 1;
}
/* This is readdir()-like function, but skips "." and ".." directory entries */
static struct dirent *xreaddir(DIR *dp)
{
struct dirent *d;
assert(dp);
while ((d = readdir(dp))) {
if (!strcmp(d->d_name, ".") ||
!strcmp(d->d_name, ".."))
continue;
/* blacklist here? */
break;
}
return d;
}
/* Returns full pat to the device node (TODO: what about sysfs_blkdev_get_path()) */
static char *get_device_path(struct lsblk_device *dev)
{
char path[PATH_MAX];
assert(dev);
assert(dev->name);
if (is_dm(dev->name))
return __canonicalize_dm_name(lsblk->sysroot, dev->name);
snprintf(path, sizeof(path), "/dev/%s", dev->name);
sysfs_devname_sys_to_dev(path);
return xstrdup(path);
}
static int is_readonly_device(struct lsblk_device *dev)
{
int fd, ro = 0;
if (ul_path_scanf(dev->sysfs, "ro", "%d", &ro) == 1)
return ro;
/* fallback if "ro" attribute does not exist */
fd = open(dev->filename, O_RDONLY);
if (fd != -1) {
if (ioctl(fd, BLKROGET, &ro) != 0)
ro = 0;
close(fd);
}
return ro;
}
static char *get_scheduler(struct lsblk_device *dev)
{
char buf[128];
char *p, *res = NULL;
if (ul_path_read_buffer(dev->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 lsblk_device *dev)
{
char *res = NULL, *p;
if (device_is_partition(dev))
return xstrdup("part");
if (is_dm(dev->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(dev->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(dev->name, "loop", 4)) {
res = xstrdup("loop");
} else if (!strncmp(dev->name, "md", 2)) {
char *md_level = NULL;
ul_path_read_string(dev->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(dev->sysfs, &x, "device/type") == 0)
type = blkdev_scsi_type_to_name(x);
if (!type)
type = "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 lsblk_device *dev)
{
struct path_cxt *sysfs = dev->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(dev->name, "nvme", 4) == 0)
trans = "nvme";
return trans ? xstrdup(trans) : NULL;
}
static char *get_subsystems(struct lsblk_device *dev)
{
char path[PATH_MAX];
char *sub, *chain, *res = NULL;
size_t len = 0, last = 0;
chain = sysfs_blkdev_get_devchain(dev->sysfs, path, sizeof(path));
if (!chain)
return NULL;
while (sysfs_blkdev_next_subsystem(dev->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);
}
/* do not modify *data on any error */
static void str2u64(const char *str, uint64_t *data)
{
uintmax_t num;
char *end = NULL;
errno = 0;
if (str == NULL || *str == '\0')
return;
num = strtoumax(str, &end, 10);
if (errno || str == end || (end && *end))
return;
*data = num;
}
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 lsblk_device *dev, int id)
{
char *sizestr;
uint64_t vfs_attr = 0;
char *mnt;
if (!dev->fsstat.f_blocks) {
mnt = lsblk_device_get_mountpoint(dev);
if (!mnt || dev->is_swap)
return NULL;
if (statvfs(mnt, &dev->fsstat) != 0)
return NULL;
}
switch(id) {
case COL_FSSIZE:
vfs_attr = dev->fsstat.f_frsize * dev->fsstat.f_blocks;
break;
case COL_FSAVAIL:
vfs_attr = dev->fsstat.f_frsize * dev->fsstat.f_bavail;
break;
case COL_FSUSED:
vfs_attr = dev->fsstat.f_frsize * (dev->fsstat.f_blocks - dev->fsstat.f_bfree);
break;
case COL_FSUSEPERC:
if (dev->fsstat.f_blocks == 0)
return xstrdup("-");
xasprintf(&sizestr, "%.0f%%",
(double)(dev->fsstat.f_blocks - dev->fsstat.f_bfree) /
dev->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 struct stat *device_get_stat(struct lsblk_device *dev)
{
if (!dev->st.st_rdev)
stat(dev->filename, &dev->st);
return &dev->st;
}
static int is_removable_device(struct lsblk_device *dev, struct lsblk_device *parent)
{
struct path_cxt *pc;
if (dev->removable != -1)
goto done;
if (ul_path_scanf(dev->sysfs, "removable", "%d", &dev->removable) == 1)
goto done;
if (parent) {
pc = sysfs_blkdev_get_parent(dev->sysfs);
if (!pc)
goto done;
if (pc == parent->sysfs)
/* dev is partition and parent is whole-disk */
dev->removable = is_removable_device(parent, NULL);
else
/* parent is something else, use sysfs parent */
ul_path_scanf(pc, "removable", "%d", &dev->removable);
}
done:
if (dev->removable == -1)
dev->removable = 0;
return dev->removable;
}
static uint64_t device_get_discard_granularity(struct lsblk_device *dev)
{
if (dev->discard_granularity == (uint64_t) -1
&& ul_path_read_u64(dev->sysfs, &dev->discard_granularity,
"queue/discard_granularity") != 0)
dev->discard_granularity = 0;
return dev->discard_granularity;
}
/*
* Generates data (string) for column specified by column ID for specified device. If sortdata
* is not NULL then returns number usable to sort the column if the data are available for the
* column.
*/
static char *device_get_data(
struct lsblk_device *dev, /* device */
struct lsblk_device *parent, /* device parent as defined in the tree */
int id, /* column ID (COL_*) */
uint64_t *sortdata) /* returns sort data as number */
{
struct lsblk_devprop *prop;
char *str = NULL;
switch(id) {
case COL_NAME:
str = dev->dm_name ? mk_dm_name(dev->dm_name) : mk_name(dev->name);
break;
case COL_KNAME:
str = mk_name(dev->name);
break;
case COL_PKNAME:
if (parent)
str = mk_name(parent->name);
break;
case COL_PATH:
if (dev->filename)
str = xstrdup(dev->filename);
break;
case COL_OWNER:
{
struct stat *st = device_get_stat(dev);
struct passwd *pw = st ? getpwuid(st->st_uid) : NULL;
if (pw)
str = xstrdup(pw->pw_name);
break;
}
case COL_GROUP:
{
struct stat *st = device_get_stat(dev);
struct group *gr = st ? getgrgid(st->st_gid) : NULL;
if (gr)
str = xstrdup(gr->gr_name);
break;
}
case COL_MODE:
{
struct stat *st = device_get_stat(dev);
char md[11] = { '\0' };
if (st)
str = xstrdup(xstrmode(st->st_mode, md));
break;
}
case COL_MAJMIN:
if (is_parsable(lsblk))
xasprintf(&str, "%u:%u", dev->maj, dev->min);
else
xasprintf(&str, "%3u:%-3u", dev->maj, dev->min);
if (sortdata)
*sortdata = makedev(dev->maj, dev->min);
break;
case COL_FSTYPE:
prop = lsblk_device_get_properties(dev);
if (prop && prop->fstype)
str = xstrdup(prop->fstype);
break;
case COL_FSSIZE:
case COL_FSAVAIL:
case COL_FSUSED:
case COL_FSUSEPERC:
str = get_vfs_attribute(dev, id);
break;
case COL_TARGET:
str = xstrdup(lsblk_device_get_mountpoint(dev));
break;
case COL_LABEL:
prop = lsblk_device_get_properties(dev);
if (prop && prop->label)
str = xstrdup(prop->label);
break;
case COL_UUID:
prop = lsblk_device_get_properties(dev);
if (prop && prop->uuid)
str = xstrdup(prop->uuid);
break;
case COL_PTUUID:
prop = lsblk_device_get_properties(dev);
if (prop && prop->ptuuid)
str = xstrdup(prop->ptuuid);
break;
case COL_PTTYPE:
prop = lsblk_device_get_properties(dev);
if (prop && prop->pttype)
str = xstrdup(prop->pttype);
break;
case COL_PARTTYPE:
prop = lsblk_device_get_properties(dev);
if (prop && prop->parttype)
str = xstrdup(prop->parttype);
break;
case COL_PARTLABEL:
prop = lsblk_device_get_properties(dev);
if (prop && prop->partlabel)
str = xstrdup(prop->partlabel);
break;
case COL_PARTUUID:
prop = lsblk_device_get_properties(dev);
if (prop && prop->partuuid)
str = xstrdup(prop->partuuid);
break;
case COL_PARTFLAGS:
prop = lsblk_device_get_properties(dev);
if (prop && prop->partflags)
str = xstrdup(prop->partflags);
break;
case COL_WWN:
prop = lsblk_device_get_properties(dev);
if (prop && prop->wwn)
str = xstrdup(prop->wwn);
break;
case COL_RA:
ul_path_read_string(dev->sysfs, &str, "queue/read_ahead_kb");
if (sortdata)
str2u64(str, sortdata);
break;
case COL_RO:
str = xstrdup(is_readonly_device(dev) ? "1" : "0");
break;
case COL_RM:
str = xstrdup(is_removable_device(dev, parent) ? "1" : "0");
break;
case COL_HOTPLUG:
str = sysfs_blkdev_is_hotpluggable(dev->sysfs) ? xstrdup("1") : xstrdup("0");
break;
case COL_ROTA:
ul_path_read_string(dev->sysfs, &str, "queue/rotational");
break;
case COL_RAND:
ul_path_read_string(dev->sysfs, &str, "queue/add_random");
break;
case COL_MODEL:
if (!device_is_partition(dev) && dev->nslaves == 0) {
prop = lsblk_device_get_properties(dev);
if (prop && prop->model)
str = xstrdup(prop->model);
else
ul_path_read_string(dev->sysfs, &str, "device/model");
}
break;
case COL_SERIAL:
if (!device_is_partition(dev) && dev->nslaves == 0) {
prop = lsblk_device_get_properties(dev);
if (prop && prop->serial)
str = xstrdup(prop->serial);
else
ul_path_read_string(dev->sysfs, &str, "device/serial");
}
break;
case COL_REV:
if (!device_is_partition(dev) && dev->nslaves == 0)
ul_path_read_string(dev->sysfs, &str, "device/rev");
break;
case COL_VENDOR:
if (!device_is_partition(dev) && dev->nslaves == 0)
ul_path_read_string(dev->sysfs, &str, "device/vendor");
break;
case COL_SIZE:
if (!dev->size)
break;
if (lsblk->bytes)
xasprintf(&str, "%ju", dev->size);
else
str = size_to_human_string(SIZE_SUFFIX_1LETTER, dev->size);
if (sortdata)
*sortdata = dev->size;
break;
case COL_STATE:
if (!device_is_partition(dev) && !dev->dm_name)
ul_path_read_string(dev->sysfs, &str, "device/state");
else if (dev->dm_name) {
int x = 0;
if (ul_path_read_s32(dev->sysfs, &x, "dm/suspended") == 0)
str = xstrdup(x ? "suspended" : "running");
}
break;
case COL_ALIOFF:
ul_path_read_string(dev->sysfs, &str, "alignment_offset");
if (sortdata)
str2u64(str, sortdata);
break;
case COL_MINIO:
ul_path_read_string(dev->sysfs, &str, "queue/minimum_io_size");
if (sortdata)
str2u64(str, sortdata);
break;
case COL_OPTIO:
ul_path_read_string(dev->sysfs, &str, "queue/optimal_io_size");
if (sortdata)
str2u64(str, sortdata);
break;
case COL_PHYSEC:
ul_path_read_string(dev->sysfs, &str, "queue/physical_block_size");
if (sortdata)
str2u64(str, sortdata);
break;
case COL_LOGSEC:
ul_path_read_string(dev->sysfs, &str, "queue/logical_block_size");
if (sortdata)
str2u64(str, sortdata);
break;
case COL_SCHED:
str = get_scheduler(dev);
break;
case COL_RQ_SIZE:
ul_path_read_string(dev->sysfs, &str, "queue/nr_requests");
if (sortdata)
str2u64(str, sortdata);
break;
case COL_TYPE:
str = get_type(dev);
break;
case COL_HCTL:
{
int h, c, t, l;
if (sysfs_blkdev_scsi_get_hctl(dev->sysfs, &h, &c, &t, &l) == 0)
xasprintf(&str, "%d:%d:%d:%d", h, c, t, l);
break;
}
case COL_TRANSPORT:
str = get_transport(dev);
break;
case COL_SUBSYS:
str = get_subsystems(dev);
break;
case COL_DALIGN:
if (device_get_discard_granularity(dev) > 0)
ul_path_read_string(dev->sysfs, &str, "discard_alignment");
if (!str)
str = xstrdup("0");
if (sortdata)
str2u64(str, sortdata);
break;
case COL_DGRAN:
if (lsblk->bytes) {
ul_path_read_string(dev->sysfs, &str, "queue/discard_granularity");
if (sortdata)
str2u64(str, sortdata);
} else {
uint64_t x = device_get_discard_granularity(dev);
str = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
if (sortdata)
*sortdata = x;
}
break;
case COL_DMAX:
if (lsblk->bytes) {
ul_path_read_string(dev->sysfs, &str, "queue/discard_max_bytes");
if (sortdata)
str2u64(str, sortdata);
} else {
uint64_t x;
if (ul_path_read_u64(dev->sysfs, &x, "queue/discard_max_bytes") == 0) {
str = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
if (sortdata)
*sortdata = x;
}
}
break;
case COL_DZERO:
if (device_get_discard_granularity(dev) > 0)
ul_path_read_string(dev->sysfs, &str, "queue/discard_zeroes_data");
if (!str)
str = xstrdup("0");
break;
case COL_WSAME:
if (lsblk->bytes) {
ul_path_read_string(dev->sysfs, &str, "queue/write_same_max_bytes");
if (sortdata)
str2u64(str, sortdata);
} else {
uint64_t x;