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Create a branch for network fixes.
svn path=/branches/aicom-network-fixes/; revision=34994
This commit is contained in:
Art Yerkes
parent
0e213bbc00
commit
c501d8112c
18148 changed files with 0 additions and 860488 deletions
288
drivers/filesystems/ntfs/attrib.c
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288
drivers/filesystems/ntfs/attrib.c
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/*
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* ReactOS kernel
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* Copyright (C) 2002,2003 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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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: drivers/filesystem/ntfs/attrib.c
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* PURPOSE: NTFS filesystem driver
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* PROGRAMMER: Eric Kohl
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* Updated by Valentin Verkhovsky 2003/09/12
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*/
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/* INCLUDES *****************************************************************/
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#include "ntfs.h"
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#define NDEBUG
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#include <debug.h>
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/* GLOBALS *****************************************************************/
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/* FUNCTIONS ****************************************************************/
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static ULONG
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RunLength(PUCHAR run)
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{
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return(*run & 0x0f) + ((*run >> 4) & 0x0f) + 1;
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}
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static LONGLONG
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RunLCN(PUCHAR run)
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{
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UCHAR n1 = *run & 0x0f;
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UCHAR n2 = (*run >> 4) & 0x0f;
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LONGLONG lcn = (n2 == 0) ? 0 : (CHAR)(run[n1 + n2]);
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LONG i = 0;
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for (i = n1 +n2 - 1; i > n1; i--)
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lcn = (lcn << 8) + run[i];
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return lcn;
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}
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static ULONGLONG
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RunCount(PUCHAR run)
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{
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UCHAR n = *run & 0xf;
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ULONGLONG count = 0;
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ULONG i = 0;
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for (i = n; i > 0; i--)
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count = (count << 8) + run[i];
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return count;
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}
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BOOLEAN
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FindRun (PNONRESIDENT_ATTRIBUTE NresAttr,
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ULONGLONG vcn,
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PULONGLONG lcn,
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PULONGLONG count)
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{
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PUCHAR run;
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ULONGLONG base = NresAttr->StartVcn;
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if (vcn < NresAttr->StartVcn || vcn > NresAttr->LastVcn)
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return FALSE;
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*lcn = 0;
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for (run = (PUCHAR)((ULONG)NresAttr + NresAttr->RunArrayOffset);
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*run != 0; run += RunLength(run))
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{
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*lcn += RunLCN(run);
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*count = RunCount(run);
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if (base <= vcn && vcn < base + *count)
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{
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*lcn = (RunLCN(run) == 0) ? 0 : *lcn + vcn - base;
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*count -= (ULONG)(vcn - base);
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return TRUE;
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}
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else
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{
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base += *count;
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}
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}
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return FALSE;
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}
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static VOID
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NtfsDumpFileNameAttribute(PATTRIBUTE Attribute)
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{
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PRESIDENT_ATTRIBUTE ResAttr;
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PFILENAME_ATTRIBUTE FileNameAttr;
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DbgPrint(" $FILE_NAME ");
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ResAttr = (PRESIDENT_ATTRIBUTE)Attribute;
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// DbgPrint(" Length %lu Offset %hu ", ResAttr->ValueLength, ResAttr->ValueOffset);
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FileNameAttr = (PFILENAME_ATTRIBUTE)((ULONG_PTR)ResAttr + ResAttr->ValueOffset);
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DbgPrint(" '%.*S' ", FileNameAttr->NameLength, FileNameAttr->Name);
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}
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static VOID
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NtfsDumpVolumeNameAttribute(PATTRIBUTE Attribute)
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{
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PRESIDENT_ATTRIBUTE ResAttr;
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PWCHAR VolumeName;
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DbgPrint(" $VOLUME_NAME ");
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ResAttr = (PRESIDENT_ATTRIBUTE)Attribute;
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// DbgPrint(" Length %lu Offset %hu ", ResAttr->ValueLength, ResAttr->ValueOffset);
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VolumeName = (PWCHAR)((ULONG_PTR)ResAttr + ResAttr->ValueOffset);
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DbgPrint(" '%.*S' ", ResAttr->ValueLength / sizeof(WCHAR), VolumeName);
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}
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static VOID
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NtfsDumpVolumeInformationAttribute(PATTRIBUTE Attribute)
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{
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PRESIDENT_ATTRIBUTE ResAttr;
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PVOLINFO_ATTRIBUTE VolInfoAttr;
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DbgPrint(" $VOLUME_INFORMATION ");
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ResAttr = (PRESIDENT_ATTRIBUTE)Attribute;
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// DbgPrint(" Length %lu Offset %hu ", ResAttr->ValueLength, ResAttr->ValueOffset);
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VolInfoAttr = (PVOLINFO_ATTRIBUTE)((ULONG_PTR)ResAttr + ResAttr->ValueOffset);
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DbgPrint(" NTFS Version %u.%u Flags 0x%04hx ",
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VolInfoAttr->MajorVersion,
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VolInfoAttr->MinorVersion,
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VolInfoAttr->Flags);
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}
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static VOID
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NtfsDumpAttribute (PATTRIBUTE Attribute)
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{
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PNONRESIDENT_ATTRIBUTE NresAttr;
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UNICODE_STRING Name;
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ULONGLONG lcn = 0;
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ULONGLONG runcount = 0;
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switch (Attribute->AttributeType)
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{
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case AttributeFileName:
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NtfsDumpFileNameAttribute(Attribute);
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break;
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case AttributeStandardInformation:
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DbgPrint(" $STANDARD_INFORMATION ");
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break;
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case AttributeAttributeList:
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DbgPrint(" $ATTRIBUTE_LIST ");
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break;
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case AttributeObjectId:
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DbgPrint(" $OBJECT_ID ");
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break;
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case AttributeSecurityDescriptor:
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DbgPrint(" $SECURITY_DESCRIPTOR ");
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break;
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case AttributeVolumeName:
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NtfsDumpVolumeNameAttribute(Attribute);
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break;
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case AttributeVolumeInformation:
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NtfsDumpVolumeInformationAttribute(Attribute);
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break;
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case AttributeData:
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DbgPrint(" $DATA ");
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//DataBuf = ExAllocatePool(NonPagedPool,AttributeLengthAllocated(Attribute));
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break;
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case AttributeIndexRoot:
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DbgPrint(" $INDEX_ROOT ");
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break;
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case AttributeIndexAllocation:
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DbgPrint(" $INDEX_ALLOCATION ");
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break;
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case AttributeBitmap:
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DbgPrint(" $BITMAP ");
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break;
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case AttributeReparsePoint:
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DbgPrint(" $REPARSE_POINT ");
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break;
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case AttributeEAInformation:
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DbgPrint(" $EA_INFORMATION ");
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break;
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case AttributeEA:
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DbgPrint(" $EA ");
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break;
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case AttributePropertySet:
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DbgPrint(" $PROPERTY_SET ");
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break;
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case AttributeLoggedUtilityStream:
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DbgPrint(" $LOGGED_UTILITY_STREAM ");
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break;
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default:
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DbgPrint(" Attribute %lx ",
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Attribute->AttributeType);
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break;
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}
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if (Attribute->NameLength != 0)
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{
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Name.Length = Attribute->NameLength * sizeof(WCHAR);
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Name.MaximumLength = Name.Length;
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Name.Buffer = (PWCHAR)((ULONG)Attribute + Attribute->NameOffset);
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DbgPrint("'%wZ' ", &Name);
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}
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DbgPrint("(%s)\n",
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Attribute->Nonresident ? "non-resident" : "resident");
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if (Attribute->Nonresident)
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{
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NresAttr = (PNONRESIDENT_ATTRIBUTE)Attribute;
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FindRun (NresAttr,0,&lcn, &runcount);
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DbgPrint (" AllocatedSize %I64u DataSize %I64u\n",
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NresAttr->AllocatedSize, NresAttr->DataSize);
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DbgPrint (" logical clusters: %I64u - %I64u\n",
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lcn, lcn + runcount - 1);
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}
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}
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VOID
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NtfsDumpFileAttributes (PFILE_RECORD_HEADER FileRecord)
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{
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PATTRIBUTE Attribute;
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Attribute = (PATTRIBUTE)((ULONG_PTR)FileRecord + FileRecord->AttributeOffset);
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while (Attribute < (PATTRIBUTE)((ULONG_PTR)FileRecord + FileRecord->BytesInUse) &&
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Attribute->AttributeType != (ATTRIBUTE_TYPE)-1)
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{
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NtfsDumpAttribute (Attribute);
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Attribute = (PATTRIBUTE)((ULONG_PTR)Attribute + Attribute->Length);
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}
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}
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/* EOF */
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