| /* |
| * lsblk(8) - list block devices |
| * |
| * Copyright (C) 2010,2011,2012 Red Hat, Inc. All rights reserved. |
| * Written by Milan Broz <mbroz@redhat.com> |
| * Karel Zak <kzak@redhat.com> |
| * |
| * 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 <stdint.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <dirent.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <sys/ioctl.h> |
| #include <inttypes.h> |
| #include <stdarg.h> |
| #include <locale.h> |
| #include <pwd.h> |
| #include <grp.h> |
| #include <ctype.h> |
| |
| #include <blkid.h> |
| #include <libmount.h> |
| #include <libsmartcols.h> |
| |
| #ifdef HAVE_LIBUDEV |
| #include <libudev.h> |
| #endif |
| |
| #include <assert.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 "mangle.h" |
| #include "optutils.h" |
| |
| #include "debug.h" |
| |
| static UL_DEBUG_DEFINE_MASK(lsblk); |
| UL_DEBUG_DEFINE_MASKNAMES(lsblk) = UL_DEBUG_EMPTY_MASKNAMES; |
| |
| #define LSBLK_DEBUG_INIT (1 << 1) |
| #define LSBLK_DEBUG_FILTER (1 << 2) |
| #define LSBLK_DEBUG_DEV (1 << 3) |
| #define LSBLK_DEBUG_CXT (1 << 4) |
| #define LSBLK_DEBUG_ALL 0xFFFF |
| |
| #define DBG(m, x) __UL_DBG(lsblk, LSBLK_DEBUG_, m, x) |
| #define ON_DBG(m, x) __UL_DBG_CALL(lsblk, LSBLK_DEBUG_, m, x) |
| |
| #define UL_DEBUG_CURRENT_MASK UL_DEBUG_MASK(lsblk) |
| #include "debugobj.h" |
| |
| #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_FSTYPE, |
| 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_FSTYPE] = { "FSTYPE", 0.1, SCOLS_FL_TRUNC, N_("filesystem type") }, |
| [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 { |
| struct libscols_table *table; /* output table */ |
| struct libscols_column *sort_col;/* sort output by this column */ |
| int sort_id; |
| |
| const char *sysroot; |
| int flags; /* LSBLK_* */ |
| |
| unsigned int all_devices:1; /* print all devices, including empty */ |
| unsigned int bytes:1; /* print SIZE in bytes */ |
| unsigned int inverse:1; /* print inverse dependencies */ |
| unsigned int nodeps:1; /* don't print slaves/holders */ |
| unsigned int scsi:1; /* print only device with HCTL (SCSI) */ |
| unsigned int paths:1; /* print devnames with "/dev" prefix */ |
| unsigned int sort_hidden:1; /* sort column not between output columns */ |
| unsigned int force_tree_order:1;/* sort lines by parent->tree relation */ |
| }; |
| |
| static 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 int excludes[256]; |
| static size_t nexcludes; |
| |
| static int includes[256]; |
| static size_t nincludes; |
| |
| static struct libmnt_table *mtab, *swaps; |
| static struct libmnt_cache *mntcache; |
| |
| #ifdef HAVE_LIBUDEV |
| static struct udev *udev; |
| #endif |
| |
| struct blkdev_cxt { |
| struct blkdev_cxt *parent; |
| |
| struct libscols_line *scols_line; |
| struct stat st; |
| |
| char *name; /* kernel name in /sys/block */ |
| char *dm_name; /* DM name (dm/block) */ |
| |
| char *filename; /* path to device node */ |
| |
| struct path_cxt *sysfs; |
| |
| int partition; /* is partition? TRUE/FALSE */ |
| |
| int probed; /* already probed */ |
| char *fstype; /* detected fs, NULL or "?" if cannot detect */ |
| char *uuid; /* filesystem UUID (or stack uuid) */ |
| char *ptuuid; /* partition table UUID */ |
| char *pttype; /* partition table type */ |
| char *label; /* filesystem label */ |
| char *parttype; /* partition type UUID */ |
| char *partuuid; /* partition UUID */ |
| char *partlabel; /* partition label */ |
| char *partflags; /* partition flags */ |
| char *wwn; /* storage WWN */ |
| char *serial; /* disk serial number */ |
| |
| int npartitions; /* # of partitions this device has */ |
| int nholders; /* # of devices mapped directly to this device |
| * /sys/block/.../holders */ |
| int nslaves; /* # of devices this device maps to */ |
| int maj, min; /* devno */ |
| int discard; /* supports discard */ |
| |
| uint64_t size; /* device size */ |
| }; |
| |
| static void lsblk_init_debug(void) |
| { |
| __UL_INIT_DEBUG_FROM_ENV(lsblk, LSBLK_DEBUG_, 0, LSBLK_DEBUG); |
| } |
| |
| 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; |
| } |
| |
| /* array with IDs of enabled columns */ |
| 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]; |
| } |
| |
| static struct colinfo *get_column_info(int num) |
| { |
| return &infos[ get_column_id(num) ]; |
| } |
| |
| 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; |
| } |
| |
| 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; |
| } |
| |
| static void reset_blkdev_cxt(struct blkdev_cxt *cxt) |
| { |
| if (!cxt) |
| return; |
| |
| DBG(CXT, ul_debugobj(cxt, "reset")); |
| |
| free(cxt->name); |
| free(cxt->dm_name); |
| free(cxt->filename); |
| free(cxt->fstype); |
| free(cxt->uuid); |
| free(cxt->ptuuid); |
| free(cxt->pttype); |
| free(cxt->label); |
| free(cxt->parttype); |
| free(cxt->partuuid); |
| free(cxt->partlabel); |
| free(cxt->wwn); |
| free(cxt->serial); |
| |
| ul_unref_path(cxt->sysfs); |
| |
| memset(cxt, 0, sizeof(*cxt)); |
| } |
| |
| static int is_dm(const char *name) |
| { |
| return strncmp(name, "dm-", 3) ? 0 : 1; |
| } |
| |
| 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; |
| } |
| |
| static char *get_device_path(struct blkdev_cxt *cxt) |
| { |
| char path[PATH_MAX]; |
| |
| assert(cxt); |
| assert(cxt->name); |
| |
| 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 (!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) |
| return is_active_swap(cxt->filename) ? xstrdup("[SWAP]") : NULL; |
| |
| /* 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))); |
| return xstrdup(mnt_fs_get_target(fs)); |
| } |
| |
| #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 (!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); |
| 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 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_TARGET: |
| str = 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) |
| 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_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; |
| } |