source: MondoRescue/branches/2.2.9/mindi-busybox/util-linux/volume_id/unused_nvidia_raid.c@ 3320

/*
 * 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;
} PACKED;

#define NVIDIA_SIGNATURE        "NVIDIA"

int FAST_FUNC 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;
}