| 1 | /*
|
|---|
| 2 | * volume_id - reads filesystem label and uuid
|
|---|
| 3 | *
|
|---|
| 4 | * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
|
|---|
| 5 | *
|
|---|
| 6 | * This library is free software; you can redistribute it and/or
|
|---|
| 7 | * modify it under the terms of the GNU Lesser General Public
|
|---|
| 8 | * License as published by the Free Software Foundation; either
|
|---|
| 9 | * version 2.1 of the License, or (at your option) any later version.
|
|---|
| 10 | *
|
|---|
| 11 | * This library 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 GNU
|
|---|
| 14 | * Lesser General Public License for more details.
|
|---|
| 15 | *
|
|---|
| 16 | * You should have received a copy of the GNU Lesser General Public
|
|---|
| 17 | * License along with this library; if not, write to the Free Software
|
|---|
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|---|
| 19 | */
|
|---|
| 20 |
|
|---|
| 21 | //kbuild:lib-$(CONFIG_FEATURE_VOLUMEID_XFS) += xfs.o
|
|---|
| 22 |
|
|---|
| 23 | //config:
|
|---|
| 24 | //config:config FEATURE_VOLUMEID_XFS
|
|---|
| 25 | //config: bool "xfs filesystem"
|
|---|
| 26 | //config: default y
|
|---|
| 27 | //config: depends on VOLUMEID
|
|---|
| 28 | //config: help
|
|---|
| 29 | //config: TODO
|
|---|
| 30 | //config:
|
|---|
| 31 |
|
|---|
| 32 | #include "volume_id_internal.h"
|
|---|
| 33 |
|
|---|
| 34 | struct xfs_super_block {
|
|---|
| 35 | uint8_t magic[4];
|
|---|
| 36 | uint32_t blocksize;
|
|---|
| 37 | uint64_t dblocks;
|
|---|
| 38 | uint64_t rblocks;
|
|---|
| 39 | uint32_t dummy1[2];
|
|---|
| 40 | uint8_t uuid[16];
|
|---|
| 41 | uint32_t dummy2[15];
|
|---|
| 42 | uint8_t fname[12];
|
|---|
| 43 | uint32_t dummy3[2];
|
|---|
| 44 | uint64_t icount;
|
|---|
| 45 | uint64_t ifree;
|
|---|
| 46 | uint64_t fdblocks;
|
|---|
| 47 | } PACKED;
|
|---|
| 48 |
|
|---|
| 49 | int FAST_FUNC volume_id_probe_xfs(struct volume_id *id /*,uint64_t off*/)
|
|---|
| 50 | {
|
|---|
| 51 | #define off ((uint64_t)0)
|
|---|
| 52 | struct xfs_super_block *xs;
|
|---|
| 53 |
|
|---|
| 54 | dbg("probing at offset 0x%llx", (unsigned long long) off);
|
|---|
| 55 |
|
|---|
| 56 | xs = volume_id_get_buffer(id, off, 0x200);
|
|---|
| 57 | if (xs == NULL)
|
|---|
| 58 | return -1;
|
|---|
| 59 |
|
|---|
| 60 | if (memcmp(xs->magic, "XFSB", 4) != 0)
|
|---|
| 61 | return -1;
|
|---|
| 62 |
|
|---|
| 63 | // volume_id_set_label_raw(id, xs->fname, 12);
|
|---|
| 64 | volume_id_set_label_string(id, xs->fname, 12);
|
|---|
| 65 | volume_id_set_uuid(id, xs->uuid, UUID_DCE);
|
|---|
| 66 |
|
|---|
| 67 | // volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
|
|---|
| 68 | IF_FEATURE_BLKID_TYPE(id->type = "xfs";)
|
|---|
| 69 |
|
|---|
| 70 | return 0;
|
|---|
| 71 | }
|
|---|
