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reactos/rostests/tests/parttest/parttest.c
Pierre Schweitzer ef570a4f3f [PARTTEST] 
Add a dummy application that will open first disk and check first sector for MBR and then will open first partition to check for something known (& not MBR)

svn path=/trunk/; revision=65367
2014-11-10 18:26:34 +00:00

345 lines
8.7 KiB
C
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/*
* PROJECT: ReactOS partitions tests/dump
* LICENSE: LGPLv2+ - See COPYING.LIB in the top level directory
* PURPOSE: Open disk & partition trying to get information about volumes & MBR
* PROGRAMMER: Pierre Schweitzer <pierre@reactos.org>
*/
#include <stdio.h>
#include <stdlib.h>
#include <winternl.h>
#ifndef NT_SUCCESS
# define NT_SUCCESS(_Status) (((NTSTATUS)(_Status)) >= 0)
#endif
#define SECTOR_SIZE 512
#define BOOT_RECORD_SIGNATURE 0xAA55
PCWSTR DiskFormat = L"\\Device\\Harddisk%lu\\Partition%lu";
#include <pshpack1.h>
typedef struct {
unsigned char magic0, res0, magic1;
unsigned char OEMName[8];
unsigned short BytesPerSector;
unsigned char SectorsPerCluster;
unsigned short ReservedSectors;
unsigned char FATCount;
unsigned short RootEntries, Sectors;
unsigned char Media;
unsigned short FATSectors, SectorsPerTrack, Heads;
unsigned long HiddenSectors, SectorsHuge;
unsigned long FATSectors32;
unsigned short ExtFlag;
unsigned short FSVersion;
unsigned long RootCluster;
unsigned short FSInfoSector;
unsigned short BootBackup;
unsigned char Res3[12];
unsigned char Drive;
unsigned char Res4;
unsigned char ExtBootSignature;
unsigned long VolumeID;
unsigned char VolumeLabel[11], SysType[8];
unsigned char Res2[420];
unsigned short Signature1;
} FATBootSector, *PFATBootSector;
typedef struct {
UCHAR Jump[3];
UCHAR OEMID[8];
USHORT BytesPerSector;
UCHAR SectorsPerCluster;
UCHAR Unused0[7];
UCHAR MediaId;
UCHAR Unused1[2];
USHORT SectorsPerTrack;
USHORT Heads;
UCHAR Unused2[4];
UCHAR Unused3[4];
USHORT Unknown[2];
ULONGLONG SectorCount;
ULONGLONG MftLocation;
ULONGLONG MftMirrLocation;
CHAR ClustersPerMftRecord;
UCHAR Unused4[3];
CHAR ClustersPerIndexRecord;
UCHAR Unused5[3];
ULONGLONG SerialNumber;
UCHAR Checksum[4];
UCHAR BootStrap[426];
USHORT EndSector;
} NTFSBootSector, *PNTFSBootSector;
typedef struct {
UCHAR BootIndicator;
UCHAR StartHead;
UCHAR StartSector;
UCHAR StartCylinder;
UCHAR SystemIndicator;
UCHAR EndHead;
UCHAR EndSector;
UCHAR EndCylinder;
ULONG SectorCountBeforePartition;
ULONG PartitionSectorCount;
} PARTITION_TABLE_ENTRY, *PPARTITION_TABLE_ENTRY;
typedef struct {
UCHAR MasterBootRecordCodeAndData[0x1B8];
ULONG Signature;
USHORT Reserved;
PARTITION_TABLE_ENTRY PartitionTable[4];
USHORT MasterBootRecordMagic;
} MASTER_BOOT_RECORD, *PMASTER_BOOT_RECORD;
#include <poppack.h>
BOOL CheckAgainstFAT(PFATBootSector Sector)
{
if (Sector->Signature1 != 0xaa55)
{
return FALSE;
}
if (Sector->BytesPerSector != 512 &&
Sector->BytesPerSector != 1024 &&
Sector->BytesPerSector != 2048 &&
Sector->BytesPerSector != 4096)
{
return FALSE;
}
if (Sector->FATCount != 1 &&
Sector->FATCount != 2)
{
return FALSE;
}
if (Sector->Media != 0xf0 &&
Sector->Media != 0xf8 &&
Sector->Media != 0xf9 &&
Sector->Media != 0xfa &&
Sector->Media != 0xfb &&
Sector->Media != 0xfc &&
Sector->Media != 0xfd &&
Sector->Media != 0xfe &&
Sector->Media != 0xff)
{
return FALSE;
}
if (Sector->SectorsPerCluster != 1 &&
Sector->SectorsPerCluster != 2 &&
Sector->SectorsPerCluster != 4 &&
Sector->SectorsPerCluster != 8 &&
Sector->SectorsPerCluster != 16 &&
Sector->SectorsPerCluster != 32 &&
Sector->SectorsPerCluster != 64 &&
Sector->SectorsPerCluster != 128)
{
return FALSE;
}
if (Sector->BytesPerSector * Sector->SectorsPerCluster > 32 * 1024)
{
return FALSE;
}
return TRUE;
}
BOOL CheckAgainstNTFS(PNTFSBootSector Sector)
{
ULONG k;
ULONG ClusterSize;
/* OEMID: this field must be NTFS */
if (RtlCompareMemory(Sector->OEMID, "NTFS ", 8) != 8)
{
return FALSE;
}
/* Unused0: this field must be COMPLETELY null */
for (k = 0; k < 7; k++)
{
if (Sector->Unused0[k] != 0)
{
return FALSE;
}
}
/* Unused3: this field must be COMPLETELY null */
for (k = 0; k < 4; k++)
{
if (Sector->Unused3[k] != 0)
{
return FALSE;
}
}
/* Check cluster size */
ClusterSize = Sector->BytesPerSector * Sector->SectorsPerCluster;
if (ClusterSize != 512 && ClusterSize != 1024 &&
ClusterSize != 2048 && ClusterSize != 4096 &&
ClusterSize != 8192 && ClusterSize != 16384 &&
ClusterSize != 32768 && ClusterSize != 65536)
{
return FALSE;
}
return TRUE;
}
BOOL CheckAgainstMBR(PMASTER_BOOT_RECORD Sector)
{
if (Sector->MasterBootRecordMagic != BOOT_RECORD_SIGNATURE)
{
return FALSE;
}
return TRUE;
}
int main(int argc, char ** argv)
{
HANDLE FileHandle;
NTSTATUS Status;
OBJECT_ATTRIBUTES ObjectAttributes;
IO_STATUS_BLOCK IoStatusBlock;
WCHAR Buffer[MAX_PATH];
UNICODE_STRING Name;
PVOID Sector;
Sector = malloc(SECTOR_SIZE);
if (Sector == NULL)
{
fprintf(stderr, "Failed allocating memory!\n");
return 0;
}
/* We first open disk */
swprintf(Buffer, DiskFormat, 0, 0);
RtlInitUnicodeString(&Name, Buffer);
InitializeObjectAttributes(&ObjectAttributes,
&Name,
OBJ_CASE_INSENSITIVE,
NULL,
NULL);
Status = NtOpenFile(&FileHandle,
GENERIC_READ | SYNCHRONIZE,
&ObjectAttributes,
&IoStatusBlock,
0,
FILE_SYNCHRONOUS_IO_NONALERT);
if (!NT_SUCCESS(Status))
{
free(Sector);
fprintf(stderr, "Failed opening disk! %lx\n", Status);
return 0;
}
/* Read first sector of the disk */
Status = NtReadFile(FileHandle,
NULL,
NULL,
NULL,
&IoStatusBlock,
Sector,
SECTOR_SIZE,
NULL,
NULL);
NtClose(FileHandle);
if (!NT_SUCCESS(Status))
{
free(Sector);
fprintf(stderr, "Failed reading sector 0! %lx\n", Status);
return 0;
}
/* Is it FAT? */
if (CheckAgainstFAT(Sector))
{
printf("Sector 0 seems to be FAT boot sector\n");
}
/* Is it NTFS? */
else if (CheckAgainstNTFS(Sector))
{
printf("Sector 0 seems to be NTFS boot sector\n");
}
/* Is it MBR? */
else if (CheckAgainstMBR(Sector))
{
printf("Sector 0 might be MBR\n");
}
/* We don't support anything else */
else
{
printf("Sector 0 not recognized\n");
}
/* Redo it with first partition */
swprintf(Buffer, DiskFormat, 0, 1);
RtlInitUnicodeString(&Name, Buffer);
InitializeObjectAttributes(&ObjectAttributes,
&Name,
OBJ_CASE_INSENSITIVE,
NULL,
NULL);
Status = NtOpenFile(&FileHandle,
GENERIC_READ | SYNCHRONIZE,
&ObjectAttributes,
&IoStatusBlock,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
FILE_SYNCHRONOUS_IO_NONALERT);
if (!NT_SUCCESS(Status))
{
free(Sector);
fprintf(stderr, "Failed opening partition! %lx\n", Status);
return 0;
}
/* Read first sector of the partition */
Status = NtReadFile(FileHandle,
NULL,
NULL,
NULL,
&IoStatusBlock,
Sector,
SECTOR_SIZE,
NULL,
NULL);
if (!NT_SUCCESS(Status))
{
free(Sector);
fprintf(stderr, "Failed reading first sector of the partition! %lx\n", Status);
return 0;
}
/* Is it FAT? */
if (CheckAgainstFAT(Sector))
{
printf("Seems to be a FAT partittion\n");
}
/* Is it NTFS? */
else if (CheckAgainstNTFS(Sector))
{
printf("Seems to be a NTFS partition\n");
}
/* Is it MBR? */
else if (CheckAgainstMBR(Sector))
{
printf("Seems to be MBR\n");
}
/* We don't support anything else */
else
{
printf("Not recognized\n");
}
free(Sector);
return 0;
}
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