mirror of
https://github.com/reactos/reactos.git
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378 lines
No EOL
9.6 KiB
C
378 lines
No EOL
9.6 KiB
C
/*
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* ReactOS kernel
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* Copyright (C) 2002 ReactOS Team
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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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: finfo.c,v 1.4 2002/07/20 11:44:24 ekohl Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: services/fs/cdfs/finfo.c
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* PURPOSE: CDROM (ISO 9660) filesystem driver
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* PROGRAMMER: Art Yerkes
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* Eric Kohl
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* UPDATE HISTORY:
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*/
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/* INCLUDES *****************************************************************/
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#include <ddk/ntddk.h>
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#define NDEBUG
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#include <debug.h>
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#include "cdfs.h"
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/* FUNCTIONS ****************************************************************/
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static NTSTATUS
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CdfsGetStandardInformation(PFCB Fcb,
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PDEVICE_OBJECT DeviceObject,
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PFILE_STANDARD_INFORMATION StandardInfo,
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PULONG BufferLength)
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/*
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* FUNCTION: Retrieve the standard file information
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*/
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{
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DPRINT("CdfsGetStandardInformation() called\n");
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if (*BufferLength < sizeof(FILE_STANDARD_INFORMATION))
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return STATUS_BUFFER_OVERFLOW;
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/* PRECONDITION */
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assert(StandardInfo != NULL);
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assert(Fcb != NULL);
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RtlZeroMemory(StandardInfo,
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sizeof(FILE_STANDARD_INFORMATION));
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StandardInfo->AllocationSize = Fcb->RFCB.AllocationSize;
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StandardInfo->EndOfFile = Fcb->RFCB.FileSize;
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StandardInfo->NumberOfLinks = 0;
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StandardInfo->DeletePending = FALSE;
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StandardInfo->Directory = Fcb->Entry.FileFlags & 0x02 ? TRUE : FALSE;
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*BufferLength -= sizeof(FILE_STANDARD_INFORMATION);
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return(STATUS_SUCCESS);
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}
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static NTSTATUS
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CdfsGetPositionInformation(PFILE_OBJECT FileObject,
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PFILE_POSITION_INFORMATION PositionInfo,
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PULONG BufferLength)
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{
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DPRINT("CdfsGetPositionInformation() called\n");
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if (*BufferLength < sizeof(FILE_POSITION_INFORMATION))
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return STATUS_BUFFER_OVERFLOW;
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PositionInfo->CurrentByteOffset.QuadPart =
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FileObject->CurrentByteOffset.QuadPart;
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DPRINT("Getting position %I64x\n",
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PositionInfo->CurrentByteOffset.QuadPart);
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*BufferLength -= sizeof(FILE_POSITION_INFORMATION);
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return(STATUS_SUCCESS);
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}
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static NTSTATUS
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CdfsGetBasicInformation(PFILE_OBJECT FileObject,
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PFCB Fcb,
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PDEVICE_OBJECT DeviceObject,
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PFILE_BASIC_INFORMATION BasicInfo,
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PULONG BufferLength)
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{
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DPRINT("CdfsGetBasicInformation() called\n");
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if (*BufferLength < sizeof(FILE_BASIC_INFORMATION))
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return STATUS_BUFFER_OVERFLOW;
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CdfsDateTimeToFileTime(Fcb,
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&BasicInfo->CreationTime);
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CdfsDateTimeToFileTime(Fcb,
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&BasicInfo->LastAccessTime);
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CdfsDateTimeToFileTime(Fcb,
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&BasicInfo->LastWriteTime);
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CdfsDateTimeToFileTime(Fcb,
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&BasicInfo->ChangeTime);
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CdfsFileFlagsToAttributes(Fcb,
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&BasicInfo->FileAttributes);
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*BufferLength -= sizeof(FILE_BASIC_INFORMATION);
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return(STATUS_SUCCESS);
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}
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static NTSTATUS
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CdfsGetNameInformation(PFILE_OBJECT FileObject,
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PFCB Fcb,
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PDEVICE_OBJECT DeviceObject,
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PFILE_NAME_INFORMATION NameInfo,
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PULONG BufferLength)
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/*
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* FUNCTION: Retrieve the file name information
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*/
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{
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ULONG NameLength;
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DPRINT("CdfsGetNameInformation() called\n");
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assert(NameInfo != NULL);
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assert(Fcb != NULL);
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NameLength = wcslen(Fcb->PathName) * sizeof(WCHAR);
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if (*BufferLength < sizeof(FILE_NAME_INFORMATION) + NameLength)
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return STATUS_BUFFER_OVERFLOW;
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NameInfo->FileNameLength = NameLength;
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RtlCopyMemory(NameInfo->FileName,
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Fcb->PathName,
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NameLength + sizeof(WCHAR));
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*BufferLength -=
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(sizeof(FILE_NAME_INFORMATION) + NameLength + sizeof(WCHAR));
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return STATUS_SUCCESS;
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}
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static NTSTATUS
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CdfsGetInternalInformation(PFCB Fcb,
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PFILE_INTERNAL_INFORMATION InternalInfo,
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PULONG BufferLength)
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{
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DPRINT("CdfsGetInternalInformation() called\n");
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assert(InternalInfo);
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assert(Fcb);
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if (*BufferLength < sizeof(FILE_INTERNAL_INFORMATION))
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return(STATUS_BUFFER_OVERFLOW);
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/* FIXME: get a real index, that can be used in a create operation */
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InternalInfo->IndexNumber.QuadPart = 0;
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*BufferLength -= sizeof(FILE_INTERNAL_INFORMATION);
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return(STATUS_SUCCESS);
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}
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static NTSTATUS
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CdfsGetNetworkOpenInformation(PFCB Fcb,
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PFILE_NETWORK_OPEN_INFORMATION NetworkInfo,
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PULONG BufferLength)
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/*
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* FUNCTION: Retrieve the file network open information
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*/
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{
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assert(NetworkInfo);
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assert(Fcb);
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if (*BufferLength < sizeof(FILE_NETWORK_OPEN_INFORMATION))
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return(STATUS_BUFFER_OVERFLOW);
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CdfsDateTimeToFileTime(Fcb,
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&NetworkInfo->CreationTime);
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CdfsDateTimeToFileTime(Fcb,
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&NetworkInfo->LastAccessTime);
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CdfsDateTimeToFileTime(Fcb,
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&NetworkInfo->LastWriteTime);
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CdfsDateTimeToFileTime(Fcb,
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&NetworkInfo->ChangeTime);
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NetworkInfo->AllocationSize = Fcb->RFCB.AllocationSize;
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NetworkInfo->EndOfFile = Fcb->RFCB.FileSize;
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CdfsFileFlagsToAttributes(Fcb,
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&NetworkInfo->FileAttributes);
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*BufferLength -= sizeof(FILE_NETWORK_OPEN_INFORMATION);
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return(STATUS_SUCCESS);
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}
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static NTSTATUS
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CdfsGetAllInformation(PFILE_OBJECT FileObject,
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PFCB Fcb,
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PFILE_ALL_INFORMATION Info,
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PULONG BufferLength)
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/*
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* FUNCTION: Retrieve the all file information
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*/
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{
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ULONG NameLength;
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assert(Info);
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assert(Fcb);
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NameLength = wcslen(Fcb->PathName) * sizeof(WCHAR);
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if (*BufferLength < sizeof(FILE_ALL_INFORMATION) + NameLength)
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return(STATUS_BUFFER_OVERFLOW);
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/* Basic Information */
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CdfsDateTimeToFileTime(Fcb,
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&Info->BasicInformation.CreationTime);
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CdfsDateTimeToFileTime(Fcb,
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&Info->BasicInformation.LastAccessTime);
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CdfsDateTimeToFileTime(Fcb,
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&Info->BasicInformation.LastWriteTime);
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CdfsDateTimeToFileTime(Fcb,
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&Info->BasicInformation.ChangeTime);
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CdfsFileFlagsToAttributes(Fcb,
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&Info->BasicInformation.FileAttributes);
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/* Standard Information */
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Info->StandardInformation.AllocationSize = Fcb->RFCB.AllocationSize;
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Info->StandardInformation.EndOfFile = Fcb->RFCB.FileSize;
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Info->StandardInformation.NumberOfLinks = 0;
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Info->StandardInformation.DeletePending = FALSE;
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Info->StandardInformation.Directory = Fcb->Entry.FileFlags & 0x02 ? TRUE : FALSE;
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/* Internal Information */
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/* FIXME: get a real index, that can be used in a create operation */
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Info->InternalInformation.IndexNumber.QuadPart = 0;
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/* EA Information */
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Info->EaInformation.EaSize = 0;
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/* Access Information */
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/* The IO-Manager adds this information */
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/* Position Information */
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Info->PositionInformation.CurrentByteOffset.QuadPart = FileObject->CurrentByteOffset.QuadPart;
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/* Mode Information */
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/* The IO-Manager adds this information */
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/* Alignment Information */
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/* The IO-Manager adds this information */
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/* Name Information */
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Info->NameInformation.FileNameLength = NameLength;
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RtlCopyMemory(Info->NameInformation.FileName,
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Fcb->PathName,
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NameLength + sizeof(WCHAR));
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*BufferLength -= (sizeof(FILE_ALL_INFORMATION) + NameLength + sizeof(WCHAR));
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return STATUS_SUCCESS;
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}
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NTSTATUS STDCALL
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CdfsQueryInformation(PDEVICE_OBJECT DeviceObject,
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PIRP Irp)
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/*
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* FUNCTION: Retrieve the specified file information
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*/
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{
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FILE_INFORMATION_CLASS FileInformationClass;
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PIO_STACK_LOCATION Stack;
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PFILE_OBJECT FileObject;
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PFCB Fcb;
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PVOID SystemBuffer;
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ULONG BufferLength;
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NTSTATUS Status = STATUS_SUCCESS;
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DPRINT("CdfsQueryInformation() called\n");
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Stack = IoGetCurrentIrpStackLocation(Irp);
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FileInformationClass = Stack->Parameters.QueryFile.FileInformationClass;
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FileObject = Stack->FileObject;
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Fcb = FileObject->FsContext;
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SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
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BufferLength = Stack->Parameters.QueryFile.Length;
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switch (FileInformationClass)
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{
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case FileStandardInformation:
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Status = CdfsGetStandardInformation(Fcb,
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DeviceObject,
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SystemBuffer,
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&BufferLength);
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break;
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case FilePositionInformation:
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Status = CdfsGetPositionInformation(FileObject,
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SystemBuffer,
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&BufferLength);
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break;
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case FileBasicInformation:
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Status = CdfsGetBasicInformation(FileObject,
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Fcb,
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DeviceObject,
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SystemBuffer,
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&BufferLength);
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break;
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case FileNameInformation:
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Status = CdfsGetNameInformation(FileObject,
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Fcb,
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DeviceObject,
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SystemBuffer,
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&BufferLength);
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break;
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case FileInternalInformation:
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Status = CdfsGetInternalInformation(Fcb,
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SystemBuffer,
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&BufferLength);
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break;
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case FileNetworkOpenInformation:
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Status = CdfsGetNetworkOpenInformation(Fcb,
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SystemBuffer,
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&BufferLength);
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break;
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case FileAllInformation:
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Status = CdfsGetAllInformation(FileObject,
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Fcb,
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SystemBuffer,
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&BufferLength);
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break;
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case FileAlternateNameInformation:
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Status = STATUS_NOT_IMPLEMENTED;
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break;
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default:
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DPRINT("Unimplemented information class %u\n", FileInformationClass);
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Status = STATUS_NOT_SUPPORTED;
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}
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Irp->IoStatus.Status = Status;
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if (NT_SUCCESS(Status))
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Irp->IoStatus.Information =
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Stack->Parameters.QueryFile.Length - BufferLength;
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else
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return(Status);
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}
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/* EOF */ |