Denis Vlasenko | de7684a | 2008-02-18 21:08:49 +0000 | [diff] [blame] | 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 | #include "volume_id_internal.h" |
| 22 | |
| 23 | struct xfs_super_block { |
| 24 | uint8_t magic[4]; |
| 25 | uint32_t blocksize; |
| 26 | uint64_t dblocks; |
| 27 | uint64_t rblocks; |
| 28 | uint32_t dummy1[2]; |
| 29 | uint8_t uuid[16]; |
| 30 | uint32_t dummy2[15]; |
| 31 | uint8_t fname[12]; |
| 32 | uint32_t dummy3[2]; |
| 33 | uint64_t icount; |
| 34 | uint64_t ifree; |
| 35 | uint64_t fdblocks; |
Denys Vlasenko | 8dc0e19 | 2009-09-16 00:58:11 +0200 | [diff] [blame] | 36 | } PACKED; |
Denis Vlasenko | de7684a | 2008-02-18 21:08:49 +0000 | [diff] [blame] | 37 | |
Denys Vlasenko | 8930096 | 2009-11-01 23:07:18 +0100 | [diff] [blame^] | 38 | int FAST_FUNC volume_id_probe_xfs(struct volume_id *id /*,uint64_t off*/) |
Denis Vlasenko | de7684a | 2008-02-18 21:08:49 +0000 | [diff] [blame] | 39 | { |
Denis Vlasenko | 28ea429 | 2009-02-15 05:51:19 +0000 | [diff] [blame] | 40 | #define off ((uint64_t)0) |
Denis Vlasenko | de7684a | 2008-02-18 21:08:49 +0000 | [diff] [blame] | 41 | struct xfs_super_block *xs; |
| 42 | |
| 43 | dbg("probing at offset 0x%llx", (unsigned long long) off); |
| 44 | |
| 45 | xs = volume_id_get_buffer(id, off, 0x200); |
| 46 | if (xs == NULL) |
| 47 | return -1; |
| 48 | |
| 49 | if (memcmp(xs->magic, "XFSB", 4) != 0) |
| 50 | return -1; |
| 51 | |
Denis Vlasenko | c5b7372 | 2008-03-17 09:21:26 +0000 | [diff] [blame] | 52 | // volume_id_set_label_raw(id, xs->fname, 12); |
Denis Vlasenko | de7684a | 2008-02-18 21:08:49 +0000 | [diff] [blame] | 53 | volume_id_set_label_string(id, xs->fname, 12); |
| 54 | volume_id_set_uuid(id, xs->uuid, UUID_DCE); |
| 55 | |
Denis Vlasenko | c5b7372 | 2008-03-17 09:21:26 +0000 | [diff] [blame] | 56 | // volume_id_set_usage(id, VOLUME_ID_FILESYSTEM); |
| 57 | // id->type = "xfs"; |
Denis Vlasenko | de7684a | 2008-02-18 21:08:49 +0000 | [diff] [blame] | 58 | |
| 59 | return 0; |
| 60 | } |