109 lines
3 KiB
C
109 lines
3 KiB
C
/*
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* volume_id - reads filesystem label and uuid
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*
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* Copyright (C) 2006 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE 1
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#endif
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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 "libvolume_id.h"
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#include "libvolume_id-private.h"
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#define NW_SUPERBLOCK_OFFSET 0x1000
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struct netware_super_block {
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uint8_t SBH_Signature[4];
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uint16_t SBH_VersionMajor;
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uint16_t SBH_VersionMinor;
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uint16_t SBH_VersionMediaMajor;
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uint16_t SBH_VersionMediaMinor;
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uint32_t SBH_ItemsMoved;
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uint8_t SBH_InternalID[16];
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uint32_t SBH_PackedSize;
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uint32_t SBH_Checksum;
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uint32_t supersyncid;
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int64_t superlocation[4];
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uint32_t physSizeUsed;
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uint32_t sizeUsed;
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uint32_t superTimeStamp;
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uint32_t reserved0[1];
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int64_t SBH_LoggedPoolDataBlk;
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int64_t SBH_PoolDataBlk;
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uint8_t SBH_OldInternalID[16];
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uint32_t SBH_PoolToLVStartUTC;
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uint32_t SBH_PoolToLVEndUTC;
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uint16_t SBH_VersionMediaMajorCreate;
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uint16_t SBH_VersionMediaMinorCreate;
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uint32_t SBH_BlocksMoved;
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uint32_t SBH_TempBTSpBlk;
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uint32_t SBH_TempFTSpBlk;
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uint32_t SBH_TempFTSpBlk1;
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uint32_t SBH_TempFTSpBlk2;
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uint32_t nssMagicNumber;
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uint32_t poolClassID;
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uint32_t poolID;
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uint32_t createTime;
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int64_t SBH_LoggedVolumeDataBlk;
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int64_t SBH_VolumeDataBlk;
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int64_t SBH_SystemBeastBlkNum;
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uint64_t totalblocks;
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uint16_t SBH_Name[64];
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uint8_t SBH_VolumeID[16];
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uint8_t SBH_PoolID[16];
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uint8_t SBH_PoolInternalID[16];
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uint64_t SBH_Lsn;
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uint32_t SBH_SS_Enabled;
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uint32_t SBH_SS_CreateTime;
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uint8_t SBH_SS_OriginalPoolID[16];
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uint8_t SBH_SS_OriginalVolumeID[16];
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uint8_t SBH_SS_Guid[16];
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uint16_t SBH_SS_OriginalName[64];
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uint32_t reserved2[64-(2+46)];
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} PACKED;
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int volume_id_probe_netware(struct volume_id *id, uint64_t off, uint64_t size)
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{
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struct netware_super_block *nw;
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info("probing at offset 0x%llx\n", (unsigned long long) off);
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nw = (struct netware_super_block *) volume_id_get_buffer(id, off + NW_SUPERBLOCK_OFFSET, 0x200);
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if (nw == NULL)
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return -1;
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if (memcmp(nw->SBH_Signature, "SPB5", 4) != 0)
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return -1;
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volume_id_set_uuid(id, nw->SBH_PoolID, 0, UUID_DCE);
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snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%02u",
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le16_to_cpu(nw->SBH_VersionMediaMajor), le16_to_cpu(nw->SBH_VersionMediaMinor));
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volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
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id->type = "nss";
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return 0;
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}
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