20c6bb7e9e
* grub-core/disk/raid.c (grub_raid_getname) [GRUB_UTIL]: New function. (insert_array): New argument raid. * include/grub/disk.h (grub_disk_dev) [GRUB_UTIL]: New member raidname. * include/grub/raid.h (grub_raid_array) [GRUB_UTIL]: New member driver. * util/grub-probe.c (probe): PRint raidname instead of plainly "mdraid".
416 lines
9.4 KiB
C
416 lines
9.4 KiB
C
/* grub-probe.c - probe device information for a given path */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
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*
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* GRUB 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 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will 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
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <grub/types.h>
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#include <grub/emu/misc.h>
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#include <grub/util/misc.h>
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#include <grub/util/misc.h>
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#include <grub/device.h>
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#include <grub/disk.h>
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#include <grub/file.h>
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#include <grub/fs.h>
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#include <grub/partition.h>
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#include <grub/msdos_partition.h>
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#include <grub/emu/hostdisk.h>
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#include <grub/emu/getroot.h>
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#include <grub/term.h>
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#include <grub/env.h>
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#include <grub/raid.h>
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#include <grub/i18n.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#define _GNU_SOURCE 1
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#include <getopt.h>
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#include "progname.h"
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enum {
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PRINT_FS,
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PRINT_FS_UUID,
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PRINT_FS_LABEL,
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PRINT_DRIVE,
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PRINT_DEVICE,
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PRINT_PARTMAP,
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PRINT_ABSTRACTION,
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};
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int print = PRINT_FS;
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static unsigned int argument_is_device = 0;
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static void
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probe_partmap (grub_disk_t disk)
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{
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grub_partition_t part;
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if (disk->partition == NULL)
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{
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grub_util_info ("no partition map found for %s", disk->name);
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return;
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}
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for (part = disk->partition; part; part = part->parent)
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printf ("%s\n", part->partmap->name);
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}
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static int
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probe_raid_level (grub_disk_t disk)
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{
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/* disk might be NULL in the case of a LVM physical volume with no LVM
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signature. Ignore such cases here. */
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if (!disk)
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return -1;
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if (disk->dev->id != GRUB_DISK_DEVICE_RAID_ID)
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return -1;
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return ((struct grub_raid_array *) disk->data)->level;
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}
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static void
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probe (const char *path, char *device_name)
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{
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char *drive_name = NULL;
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char *grub_path = NULL;
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char *filebuf_via_grub = NULL, *filebuf_via_sys = NULL;
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grub_device_t dev = NULL;
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grub_fs_t fs;
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if (path == NULL)
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{
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
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if (! grub_util_check_char_device (device_name))
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grub_util_error ("%s is not a character device", device_name);
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#else
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if (! grub_util_check_block_device (device_name))
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grub_util_error ("%s is not a block device", device_name);
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#endif
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}
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else
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device_name = grub_guess_root_device (path);
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if (! device_name)
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grub_util_error ("cannot find a device for %s (is /dev mounted?)", path);
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if (print == PRINT_DEVICE)
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{
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printf ("%s\n", device_name);
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goto end;
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}
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drive_name = grub_util_get_grub_dev (device_name);
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if (! drive_name)
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grub_util_error ("cannot find a GRUB drive for %s. Check your device.map", device_name);
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if (print == PRINT_DRIVE)
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{
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printf ("(%s)\n", drive_name);
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goto end;
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}
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grub_util_info ("opening %s", drive_name);
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dev = grub_device_open (drive_name);
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if (! dev)
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grub_util_error ("%s", grub_errmsg);
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if (print == PRINT_ABSTRACTION)
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{
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grub_disk_memberlist_t list = NULL, tmp;
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const int is_lvm = (dev->disk->dev->id == GRUB_DISK_DEVICE_LVM_ID);
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int is_raid = 0;
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int is_raid5 = 0;
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int is_raid6 = 0;
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int raid_level;
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raid_level = probe_raid_level (dev->disk);
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if (raid_level >= 0)
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{
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is_raid = 1;
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is_raid5 |= (raid_level == 5);
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is_raid6 |= (raid_level == 6);
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}
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if ((is_lvm) && (dev->disk->dev->memberlist))
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list = dev->disk->dev->memberlist (dev->disk);
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while (list)
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{
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raid_level = probe_raid_level (list->disk);
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if (raid_level >= 0)
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{
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is_raid = 1;
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is_raid5 |= (raid_level == 5);
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is_raid6 |= (raid_level == 6);
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}
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tmp = list->next;
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free (list);
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list = tmp;
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}
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if (is_raid)
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{
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printf ("raid ");
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if (is_raid5)
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printf ("raid5rec ");
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if (is_raid6)
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printf ("raid6rec ");
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if (dev->disk->dev->raidname)
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printf ("%s ", dev->disk->dev->raidname (dev->disk));
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}
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if (is_lvm)
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printf ("lvm ");
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printf ("\n");
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goto end;
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}
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if (print == PRINT_PARTMAP)
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{
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grub_disk_memberlist_t list = NULL, tmp;
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/* Check if dev->disk itself is contained in a partmap. */
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probe_partmap (dev->disk);
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/* In case of LVM/RAID, check the member devices as well. */
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if (dev->disk->dev->memberlist)
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list = dev->disk->dev->memberlist (dev->disk);
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while (list)
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{
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probe_partmap (list->disk);
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/* LVM on RAID */
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if (list->disk->dev->memberlist)
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{
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grub_disk_memberlist_t sub_list;
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sub_list = list->disk->dev->memberlist (list->disk);
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while (sub_list)
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{
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probe_partmap (sub_list->disk);
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tmp = sub_list->next;
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free (sub_list);
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sub_list = tmp;
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}
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}
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tmp = list->next;
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free (list);
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list = tmp;
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}
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goto end;
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}
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fs = grub_fs_probe (dev);
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if (! fs)
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grub_util_error ("%s", grub_errmsg);
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if (print == PRINT_FS)
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{
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printf ("%s\n", fs->name);
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}
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else if (print == PRINT_FS_UUID)
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{
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char *uuid;
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if (! fs->uuid)
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grub_util_error ("%s does not support UUIDs", fs->name);
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if (fs->uuid (dev, &uuid) != GRUB_ERR_NONE)
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grub_util_error ("%s", grub_errmsg);
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printf ("%s\n", uuid);
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}
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else if (print == PRINT_FS_LABEL)
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{
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char *label;
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if (! fs->label)
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grub_util_error ("%s does not support labels", fs->name);
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if (fs->label (dev, &label) != GRUB_ERR_NONE)
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grub_util_error ("%s", grub_errmsg);
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printf ("%s\n", label);
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}
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end:
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if (dev)
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grub_device_close (dev);
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free (grub_path);
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free (filebuf_via_grub);
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free (filebuf_via_sys);
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free (drive_name);
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}
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static struct option options[] =
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{
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{"device", no_argument, 0, 'd'},
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{"device-map", required_argument, 0, 'm'},
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{"target", required_argument, 0, 't'},
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{"help", no_argument, 0, 'h'},
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{"version", no_argument, 0, 'V'},
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{"verbose", no_argument, 0, 'v'},
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{0, 0, 0, 0}
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};
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static void
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usage (int status)
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{
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if (status)
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fprintf (stderr,
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"Try `%s --help' for more information.\n", program_name);
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else
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printf ("\
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Usage: %s [OPTION]... [PATH|DEVICE]\n\
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\n\
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Probe device information for a given path (or device, if the -d option is given).\n\
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\n\
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-d, --device given argument is a system device, not a path\n\
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-m, --device-map=FILE use FILE as the device map [default=%s]\n\
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-t, --target=(fs|fs_uuid|fs_label|drive|device|partmap|abstraction)\n\
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print filesystem module, GRUB drive, system device, partition map module or abstraction module [default=fs]\n\
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-h, --help display this message and exit\n\
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-V, --version print version information and exit\n\
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-v, --verbose print verbose messages\n\
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\n\
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Report bugs to <%s>.\n\
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", program_name,
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DEFAULT_DEVICE_MAP, PACKAGE_BUGREPORT);
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exit (status);
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}
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int
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main (int argc, char *argv[])
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{
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char *dev_map = 0;
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char *argument;
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set_program_name (argv[0]);
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grub_util_init_nls ();
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/* Check for options. */
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while (1)
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{
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int c = getopt_long (argc, argv, "dm:t:hVv", options, 0);
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if (c == -1)
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break;
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else
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switch (c)
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{
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case 'd':
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argument_is_device = 1;
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break;
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case 'm':
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if (dev_map)
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free (dev_map);
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dev_map = xstrdup (optarg);
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break;
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case 't':
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if (!strcmp (optarg, "fs"))
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print = PRINT_FS;
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else if (!strcmp (optarg, "fs_uuid"))
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print = PRINT_FS_UUID;
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else if (!strcmp (optarg, "fs_label"))
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print = PRINT_FS_LABEL;
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else if (!strcmp (optarg, "drive"))
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print = PRINT_DRIVE;
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else if (!strcmp (optarg, "device"))
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print = PRINT_DEVICE;
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else if (!strcmp (optarg, "partmap"))
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print = PRINT_PARTMAP;
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else if (!strcmp (optarg, "abstraction"))
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print = PRINT_ABSTRACTION;
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else
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usage (1);
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break;
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case 'h':
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usage (0);
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break;
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case 'V':
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printf ("%s (%s) %s\n", program_name, PACKAGE_NAME, PACKAGE_VERSION);
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return 0;
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case 'v':
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verbosity++;
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break;
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default:
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usage (1);
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break;
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}
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}
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if (verbosity > 1)
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grub_env_set ("debug", "all");
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/* Obtain ARGUMENT. */
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if (optind >= argc)
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{
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fprintf (stderr, "No path or device is specified.\n");
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usage (1);
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}
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if (optind + 1 != argc)
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{
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fprintf (stderr, "Unknown extra argument `%s'.\n", argv[optind + 1]);
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usage (1);
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}
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argument = argv[optind];
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/* Initialize the emulated biosdisk driver. */
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grub_util_biosdisk_init (dev_map ? : DEFAULT_DEVICE_MAP);
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/* Initialize all modules. */
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grub_init_all ();
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grub_lvm_fini ();
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grub_mdraid09_fini ();
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grub_mdraid1x_fini ();
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grub_raid_fini ();
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grub_raid_init ();
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grub_mdraid09_init ();
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grub_mdraid1x_init ();
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grub_lvm_init ();
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/* Do it. */
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if (argument_is_device)
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probe (NULL, argument);
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else
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probe (argument, NULL);
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/* Free resources. */
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grub_fini_all ();
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grub_util_biosdisk_fini ();
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free (dev_map);
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return 0;
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}
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