mirror of
https://github.com/systemd/systemd-stable.git
synced 2024-11-01 00:51:08 +03:00
82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/*
|
|
* volume_id - reads filesystem label and uuid
|
|
*
|
|
* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef _GNU_SOURCE
|
|
#define _GNU_SOURCE 1
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <ctype.h>
|
|
|
|
#include "libvolume_id.h"
|
|
#include "libvolume_id-private.h"
|
|
|
|
struct silicon_meta {
|
|
uint8_t unknown0[0x2E];
|
|
uint8_t ascii_version[0x36 - 0x2E];
|
|
uint8_t diskname[0x56 - 0x36];
|
|
uint8_t unknown1[0x60 - 0x56];
|
|
uint32_t magic;
|
|
uint32_t unknown1a[0x6C - 0x64];
|
|
uint32_t array_sectors_low;
|
|
uint32_t array_sectors_high;
|
|
uint8_t unknown2[0x78 - 0x74];
|
|
uint32_t thisdisk_sectors;
|
|
uint8_t unknown3[0x100 - 0x7C];
|
|
uint8_t unknown4[0x104 - 0x100];
|
|
uint16_t product_id;
|
|
uint16_t vendor_id;
|
|
uint16_t minor_ver;
|
|
uint16_t major_ver;
|
|
} PACKED;
|
|
|
|
#define SILICON_MAGIC 0x2F000000
|
|
|
|
int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size)
|
|
{
|
|
const uint8_t *buf;
|
|
uint64_t meta_off;
|
|
struct silicon_meta *sil;
|
|
|
|
info("probing at offset 0x%" PRIx64 ", size 0x%" PRIx64 "\n", off, size);
|
|
|
|
if (size < 0x10000)
|
|
return -1;
|
|
|
|
meta_off = ((size / 0x200)-1) * 0x200;
|
|
buf = volume_id_get_buffer(id, off + meta_off, 0x200);
|
|
if (buf == NULL)
|
|
return -1;
|
|
|
|
sil = (struct silicon_meta *) buf;
|
|
if (le32_to_cpu(sil->magic) != SILICON_MAGIC)
|
|
return -1;
|
|
|
|
volume_id_set_usage(id, VOLUME_ID_RAID);
|
|
snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u",
|
|
le16_to_cpu(sil->major_ver), le16_to_cpu(sil->minor_ver));
|
|
id->type = "silicon_medley_raid_member";
|
|
|
|
return 0;
|
|
}
|