mirror of
https://github.com/sheumann/hush.git
synced 2024-07-20 17:29:40 +00:00
893009644f
function old new delta volume_id_probe_iso9660 324 327 +3 volume_id_probe_vfat 902 903 +1 volume_id_probe_udf 576 577 +1 volume_id_probe_ntfs 314 315 +1 uuidcache_check_device 292 291 -1 volume_id_probe_xfs 87 85 -2 volume_id_probe_sysv 165 163 -2 volume_id_probe_romfs 89 87 -2 volume_id_probe_reiserfs 236 234 -2 volume_id_probe_ocfs2 96 94 -2 volume_id_probe_luks 78 76 -2 volume_id_probe_linux_swap 165 163 -2 volume_id_probe_jfs 96 94 -2 volume_id_probe_hfs_hfsplus 795 793 -2 volume_id_probe_ext 82 80 -2 volume_id_probe_cramfs 59 57 -2 volume_id_probe_btrfs 96 94 -2 free_volume_id 36 31 -5 volume_id_probe_linux_raid 127 119 -8 volume_id_probe_all 152 138 -14 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/16 up/down: 6/-52) Total: -46 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/*
|
|
* volume_id - reads filesystem label and uuid
|
|
*
|
|
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "volume_id_internal.h"
|
|
|
|
struct swap_header_v1_2 {
|
|
uint8_t bootbits[1024];
|
|
uint32_t version;
|
|
uint32_t last_page;
|
|
uint32_t nr_badpages;
|
|
uint8_t uuid[16];
|
|
uint8_t volume_name[16];
|
|
} PACKED;
|
|
|
|
#define LARGEST_PAGESIZE 0x4000
|
|
|
|
int FAST_FUNC volume_id_probe_linux_swap(struct volume_id *id /*,uint64_t off*/)
|
|
{
|
|
#define off ((uint64_t)0)
|
|
struct swap_header_v1_2 *sw;
|
|
const uint8_t *buf;
|
|
unsigned page;
|
|
|
|
dbg("probing at offset 0x%llx", (unsigned long long) off);
|
|
|
|
/* the swap signature is at the end of the PAGE_SIZE */
|
|
for (page = 0x1000; page <= LARGEST_PAGESIZE; page <<= 1) {
|
|
buf = volume_id_get_buffer(id, off + page-10, 10);
|
|
if (buf == NULL)
|
|
return -1;
|
|
|
|
if (memcmp(buf, "SWAP-SPACE", 10) == 0) {
|
|
// id->type_version[0] = '1';
|
|
// id->type_version[1] = '\0';
|
|
goto found;
|
|
}
|
|
|
|
if (memcmp(buf, "SWAPSPACE2", 10) == 0) {
|
|
sw = volume_id_get_buffer(id, off, sizeof(struct swap_header_v1_2));
|
|
if (sw == NULL)
|
|
return -1;
|
|
// id->type_version[0] = '2';
|
|
// id->type_version[1] = '\0';
|
|
// volume_id_set_label_raw(id, sw->volume_name, 16);
|
|
volume_id_set_label_string(id, sw->volume_name, 16);
|
|
volume_id_set_uuid(id, sw->uuid, UUID_DCE);
|
|
goto found;
|
|
}
|
|
}
|
|
return -1;
|
|
|
|
found:
|
|
// volume_id_set_usage(id, VOLUME_ID_OTHER);
|
|
// id->type = "swap";
|
|
|
|
return 0;
|
|
}
|