1/* 2 * volume_id - reads filesystem label and uuid 3 * 4 * Copyright (C) 2006 Kay Sievers <kay.sievers@vrfy.org> 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation version 2 of the License. 9 */ 10 11#ifndef _GNU_SOURCE 12#define _GNU_SOURCE 1 13#endif 14 15#ifdef HAVE_CONFIG_H 16# include <config.h> 17#endif 18 19#include <stdio.h> 20#include <stdlib.h> 21#include <unistd.h> 22#include <string.h> 23#include <errno.h> 24#include <ctype.h> 25 26#include "libvolume_id.h" 27#include "util.h" 28 29struct adaptec_meta { 30 uint32_t b0idcode; 31 uint8_t lunsave[8]; 32 uint16_t sdtype; 33 uint16_t ssavecyl; 34 uint8_t ssavehed; 35 uint8_t ssavesec; 36 uint8_t sb0flags; 37 uint8_t jbodEnable; 38 uint8_t lundsave; 39 uint8_t svpdirty; 40 uint16_t biosInfo; 41 uint16_t svwbskip; 42 uint16_t svwbcln; 43 uint16_t svwbmax; 44 uint16_t res3; 45 uint16_t svwbmin; 46 uint16_t res4; 47 uint16_t svrcacth; 48 uint16_t svwcacth; 49 uint16_t svwbdly; 50 uint8_t svsdtime; 51 uint8_t res5; 52 uint16_t firmval; 53 uint16_t firmbln; 54 uint32_t firmblk; 55 uint32_t fstrsvrb; 56 uint16_t svBlockStorageTid; 57 uint16_t svtid; 58 uint8_t svseccfl; 59 uint8_t res6; 60 uint8_t svhbanum; 61 uint8_t resver; 62 uint32_t drivemagic; 63 uint8_t reserved[20]; 64 uint8_t testnum; 65 uint8_t testflags; 66 uint16_t maxErrorCount; 67 uint32_t count; 68 uint32_t startTime; 69 uint32_t interval; 70 uint8_t tstxt0; 71 uint8_t tstxt1; 72 uint8_t serNum[32]; 73 uint8_t res8[102]; 74 uint32_t fwTestMagic; 75 uint32_t fwTestSeqNum; 76 uint8_t fwTestRes[8]; 77 uint8_t smagic[4]; 78 uint32_t raidtbl; 79 uint16_t raidline; 80 uint8_t res9[0xF6]; 81} PACKED; 82 83int volume_id_probe_adaptec_raid(struct volume_id *id, uint64_t off, uint64_t size) 84{ 85 const uint8_t *buf; 86 uint64_t meta_off; 87 struct adaptec_meta *ad; 88 89 info("probing at offset 0x%llx, size 0x%llx", 90 (unsigned long long) off, (unsigned long long) size); 91 92 if (size < 0x10000) 93 return -1; 94 95 meta_off = ((size / 0x200)-1) * 0x200; 96 buf = volume_id_get_buffer(id, off + meta_off, 0x200); 97 if (buf == NULL) 98 return -1; 99 100 ad = (struct adaptec_meta *) buf; 101 if (memcmp(ad->smagic, "DPTM", 4) != 0) 102 return -1; 103 104 if (ad->b0idcode != be32_to_cpu(0x37FC4D1E)) 105 return -1; 106 107 volume_id_set_usage(id, VOLUME_ID_RAID); 108 snprintf(id->type_version, sizeof(id->type_version)-1, "%u", ad->resver); 109 id->type = "adaptec_raid_member"; 110 111 return 0; 112} 113