152 lines
3.7 KiB
C
152 lines
3.7 KiB
C
/*
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* Copyright (C) 2007 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program 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 GNU
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* 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
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#define _GNU_SOURCE
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#ifndef __CHECKER__
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#include <sys/ioctl.h>
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#include <sys/mount.h>
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#include "ioctl.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <getopt.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <uuid/uuid.h>
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#include "kerncompat.h"
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#include "ctree.h"
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#include "transaction.h"
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#include "utils.h"
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#include "volumes.h"
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#include "version.h"
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static int uuid_search(struct btrfs_fs_devices *fs_devices, char *search)
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{
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struct list_head *cur;
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struct btrfs_device *device;
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list_for_each(cur, &fs_devices->devices) {
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device = list_entry(cur, struct btrfs_device, dev_list);
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if ((device->label && strcmp(device->label, search) == 0) ||
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strcmp(device->name, search) == 0)
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return 1;
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}
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return 0;
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}
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static void print_one_uuid(struct btrfs_fs_devices *fs_devices)
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{
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char uuidbuf[37];
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struct list_head *cur;
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struct btrfs_device *device;
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char *super_bytes_used;
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u64 devs_found = 0;
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u64 total;
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uuid_unparse(fs_devices->fsid, uuidbuf);
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device = list_entry(fs_devices->devices.next, struct btrfs_device,
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dev_list);
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if (device->label && device->label[0])
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printf("Label: %s ", device->label);
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else
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printf("Label: none ");
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super_bytes_used = pretty_sizes(device->super_bytes_used);
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total = device->total_devs;
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printf(" uuid: %s\n\tTotal devices %llu FS bytes used %s\n", uuidbuf,
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(unsigned long long)total, super_bytes_used);
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free(super_bytes_used);
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list_for_each(cur, &fs_devices->devices) {
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char *total_bytes;
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char *bytes_used;
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device = list_entry(cur, struct btrfs_device, dev_list);
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total_bytes = pretty_sizes(device->total_bytes);
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bytes_used = pretty_sizes(device->bytes_used);
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printf("\tdevid %4llu size %s used %s path %s\n",
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(unsigned long long)device->devid,
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total_bytes, bytes_used, device->name);
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free(total_bytes);
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free(bytes_used);
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devs_found++;
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}
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if (devs_found < total) {
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printf("\t*** Some devices missing\n");
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}
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printf("\n");
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}
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static void print_usage(void)
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{
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fprintf(stderr, "usage: btrfs-show [search label or device]\n");
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fprintf(stderr, "%s\n", BTRFS_BUILD_VERSION);
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exit(1);
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}
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static struct option long_options[] = {
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/* { "byte-count", 1, NULL, 'b' }, */
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{ 0, 0, 0, 0}
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};
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int main(int ac, char **av)
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{
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struct list_head *all_uuids;
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struct btrfs_fs_devices *fs_devices;
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struct list_head *cur_uuid;
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char *search = NULL;
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int ret;
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int option_index = 0;
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while(1) {
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int c;
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c = getopt_long(ac, av, "", long_options,
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&option_index);
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if (c < 0)
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break;
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switch(c) {
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default:
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print_usage();
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}
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}
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ac = ac - optind;
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if (ac != 0) {
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search = av[optind];
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}
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ret = btrfs_scan_one_dir("/dev", 0);
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if (ret)
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fprintf(stderr, "error %d while scanning\n", ret);
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all_uuids = btrfs_scanned_uuids();
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list_for_each(cur_uuid, all_uuids) {
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fs_devices = list_entry(cur_uuid, struct btrfs_fs_devices,
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list);
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if (search && uuid_search(fs_devices, search) == 0)
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continue;
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print_one_uuid(fs_devices);
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}
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printf("%s\n", BTRFS_BUILD_VERSION);
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return 0;
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}
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