2 * volume_id - reads filesystem label and uuid
4 * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 #include "libvolume_id.h"
32 #include "libvolume_id-private.h"
34 #define VXFS_SUPER_MAGIC 0xa501FCF5
41 int volume_id_probe_vxfs(struct volume_id *id, uint64_t off, uint64_t size)
43 struct vxfs_super *vxs;
45 info("probing at offset 0x%" PRIx64 "\n", off);
47 vxs = (struct vxfs_super *) volume_id_get_buffer(id, off + 0x200, 0x200);
51 if (vxs->vs_magic == cpu_to_le32(VXFS_SUPER_MAGIC)) {
52 snprintf(id->type_version, sizeof(id->type_version)-1, "%u", (unsigned int) vxs->vs_version);
53 volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);