LXR busybox/util-linux/volume_id/unused_lsi

   1/*
   2 * volume_id - reads filesystem label and uuid
   3 *
   4 * Copyright (C) 2005 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//config:### config FEATURE_VOLUMEID_LSIRAID
  21//config:###    bool "lsi raid"
  22//config:###    default y
  23//config:###    depends on VOLUMEID
  24
  25//kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_LSIRAID) += lsi_raid.o
  26
  27#include "volume_id_internal.h"
  28
  29struct lsi_meta {
  30        uint8_t         sig[6];
  31} PACKED;
  32
  33#define LSI_SIGNATURE           "$XIDE$"
  34
  35int FAST_FUNC volume_id_probe_lsi_mega_raid(struct volume_id *id, uint64_t off, uint64_t size)
  36{
  37        uint64_t meta_off;
  38        struct lsi_meta *lsi;
  39
  40        dbg("probing at offset 0x%llx, size 0x%llx",
  41            (unsigned long long) off, (unsigned long long) size);
  42
  43        if (size < 0x10000)
  44                return -1;
  45
  46        meta_off = ((size / 0x200)-1) * 0x200;
  47        lsi = volume_id_get_buffer(id, off + meta_off, 0x200);
  48        if (lsi == NULL)
  49                return -1;
  50
  51        if (memcmp(lsi->sig, LSI_SIGNATURE, sizeof(LSI_SIGNATURE)-1) != 0)
  52                return -1;
  53
  54//      volume_id_set_usage(id, VOLUME_ID_RAID);
  55//      id->type = "lsi_mega_raid_member";
  56
  57        return 0;
  58}
  59