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Viewing changes to libblkid/src/superblocks/silicon_raid.c

  • Committer: Package Import Robot
  • Author(s): LaMont Jones
  • Date: 2011-11-03 15:38:23 UTC
  • mto: (4.5.5 sid) (1.6.4)
  • mto: This revision was merged to the branch mainline in revision 85.
  • Revision ID: package-import@ubuntu.com-20111103153823-10sx16jprzxlhkqf
Import upstream version 2.20.1

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libblkid/src/superblocks/silicon_raid.c
 
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/*
 
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 * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
 
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 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
 
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 *
 
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 * Inspired by libvolume_id by
 
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 *     Kay Sievers <kay.sievers@vrfy.org>
 
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 *
 
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 * This file may be redistributed under the terms of the
 
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 * GNU Lesser General Public License.
 
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 */
 
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#include <stdio.h>
 
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#include <stdlib.h>
 
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#include <unistd.h>
 
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#include <string.h>
 
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#include <errno.h>
 
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#include <ctype.h>
 
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#include <stdint.h>
 
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#include <stddef.h>
 
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#include "superblocks.h"
 
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struct silicon_metadata {
 
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        uint8_t         unknown0[0x2E];
 
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        uint8_t         ascii_version[0x36 - 0x2E];
 
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        uint8_t         diskname[0x56 - 0x36];
 
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        uint8_t         unknown1[0x60 - 0x56];
 
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        uint32_t        magic;
 
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        uint32_t        unknown1a[0x6C - 0x64];
 
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        uint32_t        array_sectors_low;
 
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        uint32_t        array_sectors_high;
 
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        uint8_t         unknown2[0x78 - 0x74];
 
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        uint32_t        thisdisk_sectors;
 
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        uint8_t         unknown3[0x100 - 0x7C];
 
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        uint8_t         unknown4[0x104 - 0x100];
 
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        uint16_t        product_id;
 
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        uint16_t        vendor_id;
 
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        uint16_t        minor_ver;
 
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        uint16_t        major_ver;
 
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} __attribute__((packed));
 
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#define SILICON_MAGIC           0x2F000000
 
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static int probe_silraid(blkid_probe pr,
 
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                const struct blkid_idmag *mag __attribute__((__unused__)))
 
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{
 
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        uint64_t off;
 
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        struct silicon_metadata *sil;
 
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        if (pr->size < 0x10000)
 
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                return -1;
 
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        if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
 
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                return -1;
 
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        off = ((pr->size / 0x200) - 1) * 0x200;
 
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        sil = (struct silicon_metadata *)
 
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                        blkid_probe_get_buffer(pr, off,
 
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                                sizeof(struct silicon_metadata));
 
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        if (!sil)
 
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                return -1;
 
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        if (le32_to_cpu(sil->magic) != SILICON_MAGIC)
 
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                return -1;
 
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        if (blkid_probe_sprintf_version(pr, "%u.%u",
 
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                                le16_to_cpu(sil->major_ver),
 
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                                le16_to_cpu(sil->minor_ver)) != 0)
 
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                return -1;
 
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        if (blkid_probe_set_magic(pr,
 
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                        off + offsetof(struct silicon_metadata, magic),
 
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                        sizeof(sil->magic),
 
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                        (unsigned char *) &sil->magic))
 
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                return -1;
 
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        return 0;
 
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}
 
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const struct blkid_idinfo silraid_idinfo = {
 
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        .name           = "silicon_medley_raid_member",
 
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        .usage          = BLKID_USAGE_RAID,
 
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        .probefunc      = probe_silraid,
 
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        .magics         = BLKID_NONE_MAGIC
 
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};
 
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