57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
|
|
* volume_id - reads filesystem label and uuid
|
|
*
|
|
* Copyright (C) 2005 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 nvidia_meta {
|
|
uint8_t vendor[8];
|
|
uint32_t size;
|
|
uint32_t chksum;
|
|
uint16_t version;
|
|
} __attribute__((packed));
|
|
|
|
#define NVIDIA_SIGNATURE "NVIDIA"
|
|
|
|
int volume_id_probe_nvidia_raid(struct volume_id *id, uint64_t off, uint64_t size)
|
|
{
|
|
uint64_t meta_off;
|
|
struct nvidia_meta *nv;
|
|
|
|
dbg("probing at offset 0x%llx, size 0x%llx",
|
|
(unsigned long long) off, (unsigned long long) size);
|
|
|
|
if (size < 0x10000)
|
|
return -1;
|
|
|
|
meta_off = ((size / 0x200)-2) * 0x200;
|
|
nv = volume_id_get_buffer(id, off + meta_off, 0x200);
|
|
if (nv == NULL)
|
|
return -1;
|
|
|
|
if (memcmp(nv->vendor, NVIDIA_SIGNATURE, sizeof(NVIDIA_SIGNATURE)-1) != 0)
|
|
return -1;
|
|
|
|
volume_id_set_usage(id, VOLUME_ID_RAID);
|
|
snprintf(id->type_version, sizeof(id->type_version)-1, "%u", le16_to_cpu(nv->version));
|
|
id->type = "nvidia_raid_member";
|
|
|
|
return 0;
|
|
}
|