+++ /dev/null
-/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS VFAT filesystem library
- * FILE: lib\fslib\vfatlib\vfatlib.c
- * PURPOSE: Main API
- * PROGRAMMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
- * Aleksey Bragin (aleksey@reactos.org)
- * Hermes Belusca-Maito (hermes.belusca@sfr.fr)
- */
-/* fsck.fat.c - User interface
-
- Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
- Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
- Copyright (C) 2008-2014 Daniel Baumann <mail@daniel-baumann.ch>
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-
- The complete text of the GNU General Public License
- can be found in /usr/share/common-licenses/GPL-3 file.
-*/
-
-/* INCLUDES *******************************************************************/
-
-#include "vfatlib.h"
-
-#define NDEBUG
-#include <debug.h>
-
-
-/* GLOBALS & FUNCTIONS ********************************************************/
-
-PFMIFSCALLBACK ChkdskCallback = NULL;
-ULONG FsCheckFlags;
-PVOID FsCheckMemQueue;
-ULONG FsCheckTotalFiles;
-
-NTSTATUS
-NTAPI
-VfatFormat(IN PUNICODE_STRING DriveRoot,
- IN FMIFS_MEDIA_FLAG MediaFlag,
- IN PUNICODE_STRING Label,
- IN BOOLEAN QuickFormat,
- IN ULONG ClusterSize,
- IN PFMIFSCALLBACK Callback)
-{
- OBJECT_ATTRIBUTES ObjectAttributes;
- DISK_GEOMETRY DiskGeometry;
- IO_STATUS_BLOCK Iosb;
- HANDLE FileHandle;
- PARTITION_INFORMATION PartitionInfo;
- FORMAT_CONTEXT Context;
- NTSTATUS Status, LockStatus;
-
- DPRINT("VfatFormat(DriveRoot '%wZ')\n", DriveRoot);
-
- Context.TotalSectorCount = 0;
- Context.CurrentSectorCount = 0;
- Context.Callback = Callback;
- Context.Success = FALSE;
- Context.Percent = 0;
-
- InitializeObjectAttributes(&ObjectAttributes,
- DriveRoot,
- 0,
- NULL,
- NULL);
-
- Status = NtOpenFile(&FileHandle,
- FILE_GENERIC_READ | FILE_GENERIC_WRITE | SYNCHRONIZE,
- &ObjectAttributes,
- &Iosb,
- FILE_SHARE_READ,
- FILE_SYNCHRONOUS_IO_ALERT);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("NtOpenFile() failed with status 0x%.08x\n", Status);
- return Status;
- }
-
- Status = NtDeviceIoControlFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &Iosb,
- IOCTL_DISK_GET_DRIVE_GEOMETRY,
- NULL,
- 0,
- &DiskGeometry,
- sizeof(DISK_GEOMETRY));
- if (!NT_SUCCESS(Status))
- {
- DPRINT("IOCTL_DISK_GET_DRIVE_GEOMETRY failed with status 0x%.08x\n", Status);
- NtClose(FileHandle);
- return Status;
- }
-
- if (DiskGeometry.MediaType == FixedMedia)
- {
- DPRINT("Cylinders %I64d\n", DiskGeometry.Cylinders.QuadPart);
- DPRINT("TracksPerCylinder %ld\n", DiskGeometry.TracksPerCylinder);
- DPRINT("SectorsPerTrack %ld\n", DiskGeometry.SectorsPerTrack);
- DPRINT("BytesPerSector %ld\n", DiskGeometry.BytesPerSector);
- DPRINT("DiskSize %I64d\n",
- DiskGeometry.Cylinders.QuadPart *
- (ULONGLONG)DiskGeometry.TracksPerCylinder *
- (ULONGLONG)DiskGeometry.SectorsPerTrack *
- (ULONGLONG)DiskGeometry.BytesPerSector);
-
- Status = NtDeviceIoControlFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &Iosb,
- IOCTL_DISK_GET_PARTITION_INFO,
- NULL,
- 0,
- &PartitionInfo,
- sizeof(PARTITION_INFORMATION));
- if (!NT_SUCCESS(Status))
- {
- DPRINT("IOCTL_DISK_GET_PARTITION_INFO failed with status 0x%.08x\n", Status);
- NtClose(FileHandle);
- return Status;
- }
- }
- else
- {
- PartitionInfo.PartitionType = 0;
- PartitionInfo.StartingOffset.QuadPart = 0ULL;
- PartitionInfo.PartitionLength.QuadPart =
- DiskGeometry.Cylinders.QuadPart *
- (ULONGLONG)DiskGeometry.TracksPerCylinder *
- (ULONGLONG)DiskGeometry.SectorsPerTrack *
- (ULONGLONG)DiskGeometry.BytesPerSector;
- PartitionInfo.HiddenSectors = 0;
- PartitionInfo.PartitionNumber = 0;
- PartitionInfo.BootIndicator = FALSE;
- PartitionInfo.RewritePartition = FALSE;
- PartitionInfo.RecognizedPartition = FALSE;
- }
-
- /* If it already has a FAT FS, we'll use that type.
- * If it doesn't, we will determine the FAT type based on size and offset */
- if (PartitionInfo.PartitionType != PARTITION_FAT_12 &&
- PartitionInfo.PartitionType != PARTITION_FAT_16 &&
- PartitionInfo.PartitionType != PARTITION_HUGE &&
- PartitionInfo.PartitionType != PARTITION_XINT13 &&
- PartitionInfo.PartitionType != PARTITION_FAT32 &&
- PartitionInfo.PartitionType != PARTITION_FAT32_XINT13)
- {
- /* Determine the correct type based upon size and offset (copied from usetup) */
- if (PartitionInfo.PartitionLength.QuadPart < (4200LL * 1024LL))
- {
- /* FAT12 CHS partition (disk is smaller than 4.1MB) */
- PartitionInfo.PartitionType = PARTITION_FAT_12;
- }
- else if (PartitionInfo.StartingOffset.QuadPart < (1024LL * 255LL * 63LL * 512LL))
- {
- /* Partition starts below the 8.4GB boundary ==> CHS partition */
-
- if (PartitionInfo.PartitionLength.QuadPart < (32LL * 1024LL * 1024LL))
- {
- /* FAT16 CHS partition (partition size < 32MB) */
- PartitionInfo.PartitionType = PARTITION_FAT_16;
- }
- else if (PartitionInfo.PartitionLength.QuadPart < (512LL * 1024LL * 1024LL))
- {
- /* FAT16 CHS partition (partition size < 512MB) */
- PartitionInfo.PartitionType = PARTITION_HUGE;
- }
- else
- {
- /* FAT32 CHS partition (partition size >= 512MB) */
- PartitionInfo.PartitionType = PARTITION_FAT32;
- }
- }
- else
- {
- /* Partition starts above the 8.4GB boundary ==> LBA partition */
-
- if (PartitionInfo.PartitionLength.QuadPart < (512LL * 1024LL * 1024LL))
- {
- /* FAT16 LBA partition (partition size < 512MB) */
- PartitionInfo.PartitionType = PARTITION_XINT13;
- }
- else
- {
- /* FAT32 LBA partition (partition size >= 512MB) */
- PartitionInfo.PartitionType = PARTITION_FAT32_XINT13;
- }
- }
- }
-
- DPRINT("PartitionType 0x%x\n", PartitionInfo.PartitionType);
- DPRINT("StartingOffset %I64d\n", PartitionInfo.StartingOffset.QuadPart);
- DPRINT("PartitionLength %I64d\n", PartitionInfo.PartitionLength.QuadPart);
- DPRINT("HiddenSectors %lu\n", PartitionInfo.HiddenSectors);
- DPRINT("PartitionNumber %d\n", PartitionInfo.PartitionNumber);
- DPRINT("BootIndicator 0x%x\n", PartitionInfo.BootIndicator);
- DPRINT("RewritePartition %d\n", PartitionInfo.RewritePartition);
- DPRINT("RecognizedPartition %d\n", PartitionInfo.RecognizedPartition);
-
- if (Callback != NULL)
- {
- Context.Percent = 0;
- Callback (PROGRESS, 0, (PVOID)&Context.Percent);
- }
-
- LockStatus = NtFsControlFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &Iosb,
- FSCTL_LOCK_VOLUME,
- NULL,
- 0,
- NULL,
- 0);
- if (!NT_SUCCESS(LockStatus))
- {
- DPRINT1("WARNING: Failed to lock volume for formatting! Format may fail! (Status: 0x%x)\n", LockStatus);
- }
-
- if (PartitionInfo.PartitionType == PARTITION_FAT_12)
- {
- /* FAT12 */
- Status = Fat12Format(FileHandle,
- &PartitionInfo,
- &DiskGeometry,
- Label,
- QuickFormat,
- ClusterSize,
- &Context);
- }
- else if (PartitionInfo.PartitionType == PARTITION_FAT_16 ||
- PartitionInfo.PartitionType == PARTITION_HUGE ||
- PartitionInfo.PartitionType == PARTITION_XINT13)
- {
- /* FAT16 */
- Status = Fat16Format(FileHandle,
- &PartitionInfo,
- &DiskGeometry,
- Label,
- QuickFormat,
- ClusterSize,
- &Context);
- }
- else if (PartitionInfo.PartitionType == PARTITION_FAT32 ||
- PartitionInfo.PartitionType == PARTITION_FAT32_XINT13)
- {
- /* FAT32 */
- Status = Fat32Format(FileHandle,
- &PartitionInfo,
- &DiskGeometry,
- Label,
- QuickFormat,
- ClusterSize,
- &Context);
- }
- else
- {
- Status = STATUS_INVALID_PARAMETER;
- }
-
- /* Attempt to dismount formatted volume */
- LockStatus = NtFsControlFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &Iosb,
- FSCTL_DISMOUNT_VOLUME,
- NULL,
- 0,
- NULL,
- 0);
- if (!NT_SUCCESS(LockStatus))
- {
- DPRINT1("Failed to umount volume (Status: 0x%x)\n", LockStatus);
- }
-
- LockStatus = NtFsControlFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &Iosb,
- FSCTL_UNLOCK_VOLUME,
- NULL,
- 0,
- NULL,
- 0);
- if (!NT_SUCCESS(LockStatus))
- {
- DPRINT1("Failed to unlock volume (Status: 0x%x)\n", LockStatus);
- }
-
- NtClose(FileHandle);
-
- if (Callback != NULL)
- {
- Context.Success = (BOOLEAN)(NT_SUCCESS(Status));
- Callback(DONE, 0, (PVOID)&Context.Success);
- }
-
- DPRINT("VfatFormat() done. Status 0x%.08x\n", Status);
-
- return Status;
-}
-
-
-VOID
-UpdateProgress(PFORMAT_CONTEXT Context,
- ULONG Increment)
-{
- ULONG NewPercent;
-
- Context->CurrentSectorCount += (ULONGLONG)Increment;
-
- NewPercent = (Context->CurrentSectorCount * 100ULL) / Context->TotalSectorCount;
-
- if (NewPercent > Context->Percent)
- {
- Context->Percent = NewPercent;
- if (Context->Callback != NULL)
- {
- Context->Callback(PROGRESS, 0, &Context->Percent);
- }
- }
-}
-
-
-VOID
-VfatPrintV(PCHAR Format, va_list args)
-{
- TEXTOUTPUT TextOut;
- CHAR TextBuf[512];
-
- _vsnprintf(TextBuf, sizeof(TextBuf), Format, args);
-
- /* Prepare parameters */
- TextOut.Lines = 1;
- TextOut.Output = TextBuf;
-
- DPRINT1("VfatPrint -- %s", TextBuf);
-
- /* Do the callback */
- if (ChkdskCallback)
- ChkdskCallback(OUTPUT, 0, &TextOut);
-}
-
-
-VOID
-VfatPrint(PCHAR Format, ...)
-{
- va_list args;
-
- va_start(args, Format);
- VfatPrintV(Format, args);
- va_end(args);
-}
-
-
-NTSTATUS
-NTAPI
-VfatChkdsk(IN PUNICODE_STRING DriveRoot,
- IN BOOLEAN FixErrors,
- IN BOOLEAN Verbose,
- IN BOOLEAN CheckOnlyIfDirty,
- IN BOOLEAN ScanDrive,
- IN PFMIFSCALLBACK Callback)
-{
- BOOLEAN verify;
- BOOLEAN salvage_files;
- ULONG free_clusters;
- DOS_FS fs;
-
- RtlZeroMemory(&fs, sizeof(fs));
-
- /* Store callback pointer */
- ChkdskCallback = Callback;
- FsCheckMemQueue = NULL;
-
- /* Set parameters */
- FsCheckFlags = 0;
- if (Verbose)
- FsCheckFlags |= FSCHECK_VERBOSE;
- if (FixErrors)
- FsCheckFlags |= FSCHECK_READ_WRITE;
-
- FsCheckTotalFiles = 0;
-
- verify = TRUE;
- salvage_files = TRUE;
-
- /* Open filesystem and lock it */
- fs_open(DriveRoot, FsCheckFlags & FSCHECK_READ_WRITE);
-
- if (CheckOnlyIfDirty && !fs_isdirty())
- {
- /* Unlock volume if required */
- if (FsCheckFlags & FSCHECK_READ_WRITE)
- fs_lock(FALSE);
-
- /* No need to check FS */
- return (fs_close(FALSE) == 0 ? STATUS_SUCCESS : STATUS_DISK_CORRUPT_ERROR);
- }
-
- read_boot(&fs);
-
- if (verify)
- VfatPrint("Starting check/repair pass.\n");
-
- while (read_fat(&fs), scan_root(&fs))
- qfree(&FsCheckMemQueue);
-
- if (ScanDrive)
- fix_bad(&fs);
-
- if (salvage_files)
- reclaim_file(&fs);
- else
- reclaim_free(&fs);
-
- free_clusters = update_free(&fs);
- file_unused();
- qfree(&FsCheckMemQueue);
- if (verify)
- {
- FsCheckTotalFiles = 0;
- VfatPrint("Starting verification pass.\n");
- read_fat(&fs);
- scan_root(&fs);
- reclaim_free(&fs);
- qfree(&FsCheckMemQueue);
- }
-
- if (fs_changed())
- {
- if (FsCheckFlags & FSCHECK_READ_WRITE)
- {
- if (FsCheckFlags & FSCHECK_INTERACTIVE)
- {
- FixErrors = get_key("yn", "Perform changes ? (y/n)") == 'y';
- if (FixErrors)
- FsCheckFlags |= FSCHECK_READ_WRITE;
- else
- FsCheckFlags &= ~FSCHECK_READ_WRITE;
- }
- else
- VfatPrint("Performing changes.\n");
- }
- else
- {
- VfatPrint("Leaving filesystem unchanged.\n");
- }
- }
-
- VfatPrint("%wZ: %u files, %lu/%lu clusters\n", DriveRoot,
- FsCheckTotalFiles, fs.data_clusters - free_clusters, fs.data_clusters);
-
- if (FsCheckFlags & FSCHECK_READ_WRITE)
- {
- /* Dismount the volume */
- fs_dismount();
-
- /* Unlock the volume */
- fs_lock(FALSE);
- }
-
- // https://technet.microsoft.com/en-us/library/cc730714.aspx
- // https://support.microsoft.com/en-us/kb/265533
-
- /* Close the volume */
- return (fs_close(FsCheckFlags & FSCHECK_READ_WRITE) == 0 ? STATUS_SUCCESS : STATUS_DISK_CORRUPT_ERROR);
-}
-
-/* EOF */
projects / reactos.git / blobdiff