Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 772 insertions, 0 deletions

diff --git a/src/VBox/Runtime/r3/nt/dirrel-r3-nt.cpp b/src/VBox/Runtime/r3/nt/dirrel-r3-nt.cpp
new file mode 100644
index 00000000..73303182
--- /dev/null
+++ b/src/VBox/Runtime/r3/nt/dirrel-r3-nt.cpp
@@ -0,0 +1,772 @@
+/* $Id: dirrel-r3-nt.cpp $ */
+/** @file
+ * IPRT - Directory relative base APIs, NT implementation
+ */
+
+/*
+ * Copyright (C) 2006-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#define LOG_GROUP RTLOGGROUP_DIR
+#include <iprt/dir.h>
+#include "internal-r3-nt.h"
+
+#include <iprt/assert.h>
+#include <iprt/file.h>
+#include <iprt/err.h>
+#include <iprt/path.h>
+#include <iprt/string.h>
+#include <iprt/symlink.h>
+#include <iprt/utf16.h>
+#include "internal/dir.h"
+#include "internal/file.h"
+#include "internal/fs.h"
+#include "internal/path.h"
+
+
+/*********************************************************************************************************************************
+*   Defined Constants And Macros                                                                                                 *
+*********************************************************************************************************************************/
+/** Getst the RTNTPATHRELATIVEASCENT value for RTNtPathRelativeFromUtf8. */
+#define RTDIRREL_NT_GET_ASCENT(a_pThis) \
+    ( !(pThis->fFlags & RTDIR_F_DENY_ASCENT) ? kRTNtPathRelativeAscent_Allow : kRTNtPathRelativeAscent_Fail )
+
+
+
+/**
+ * Helper that builds a full path for a directory relative path.
+ *
+ * @returns IPRT status code.
+ * @param   pThis               The directory.
+ * @param   pszPathDst          The destination buffer.
+ * @param   cbPathDst           The size of the destination buffer.
+ * @param   pszRelPath          The relative path.
+ */
+static int rtDirRelBuildFullPath(PRTDIRINTERNAL pThis, char *pszPathDst, size_t cbPathDst, const char *pszRelPath)
+{
+    AssertMsgReturn(!RTPathStartsWithRoot(pszRelPath), ("pszRelPath='%s'\n", pszRelPath), VERR_PATH_IS_NOT_RELATIVE);
+
+    /*
+     * Let's hope we can avoid checking for ascension.
+     *
+     * Note! We don't take symbolic links into account here.  That can be
+     *       done later if desired.
+     */
+    if (   !(pThis->fFlags & RTDIR_F_DENY_ASCENT)
+        || strstr(pszRelPath, "..") == NULL)
+    {
+        size_t const cchRelPath = strlen(pszRelPath);
+        size_t const cchDirPath = pThis->cchPath;
+        if (cchDirPath + cchRelPath < cbPathDst)
+        {
+            memcpy(pszPathDst, pThis->pszPath, cchDirPath);
+            memcpy(&pszPathDst[cchDirPath], pszRelPath, cchRelPath);
+            pszPathDst[cchDirPath + cchRelPath] = '\0';
+            return VINF_SUCCESS;
+        }
+        return VERR_FILENAME_TOO_LONG;
+    }
+
+    /*
+     * Calc the absolute path using the directory as a base, then check if the result
+     * still starts with the full directory path.
+     *
+     * This ASSUMES that pThis->pszPath is an absolute path.
+     */
+    int rc = RTPathAbsEx(pThis->pszPath, pszRelPath, pszPathDst, cbPathDst);
+    if (RT_SUCCESS(rc))
+    {
+        if (RTPathStartsWith(pszPathDst, pThis->pszPath))
+            return VINF_SUCCESS;
+        return VERR_PATH_NOT_FOUND;
+    }
+    return rc;
+}
+
+
+/*
+ *
+ *
+ * RTFile stuff.
+ * RTFile stuff.
+ * RTFile stuff.
+ *
+ *
+ */
+
+
+RTDECL(int)  RTDirRelFileOpen(RTDIR hDir, const char *pszRelFilename, uint64_t fOpen, PRTFILE phFile)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    /*
+     * Validate and convert flags.
+     */
+    uint32_t    fDesiredAccess;
+    uint32_t    fObjAttribs;
+    uint32_t    fFileAttribs;
+    uint32_t    fShareAccess;
+    uint32_t    fCreateDisposition;
+    uint32_t    fCreateOptions;
+    int rc = rtFileNtValidateAndConvertFlags(fOpen, &fDesiredAccess, &fObjAttribs, &fFileAttribs,
+                                             &fShareAccess, &fCreateDisposition, &fCreateOptions);
+    if (RT_SUCCESS(rc))
+    {
+        /*
+         * Convert and normalize the path.
+         */
+        UNICODE_STRING NtName;
+        HANDLE hRoot = pThis->hDir;
+        rc = RTNtPathRelativeFromUtf8(&NtName, &hRoot, pszRelFilename, RTDIRREL_NT_GET_ASCENT(pThis),
+                                      pThis->enmInfoClass == FileMaximumInformation);
+        if (RT_SUCCESS(rc))
+        {
+            HANDLE              hFile = RTNT_INVALID_HANDLE_VALUE;
+            IO_STATUS_BLOCK     Ios   = RTNT_IO_STATUS_BLOCK_INITIALIZER;
+            OBJECT_ATTRIBUTES   ObjAttr;
+            InitializeObjectAttributes(&ObjAttr, &NtName, fObjAttribs, hRoot, NULL /*pSecDesc*/);
+
+            NTSTATUS rcNt = NtCreateFile(&hFile,
+                                         fDesiredAccess,
+                                         &ObjAttr,
+                                         &Ios,
+                                         NULL /* AllocationSize*/,
+                                         fFileAttribs,
+                                         fShareAccess,
+                                         fCreateDisposition,
+                                         fCreateOptions,
+                                         NULL /*EaBuffer*/,
+                                         0 /*EaLength*/);
+            if (NT_SUCCESS(rcNt))
+            {
+                rc = RTFileFromNative(phFile, (uintptr_t)hFile);
+                if (RT_FAILURE(rc))
+                    NtClose(hFile);
+            }
+            else
+                rc = RTErrConvertFromNtStatus(rcNt);
+            RTNtPathFree(&NtName, NULL);
+        }
+    }
+    return rc;
+}
+
+
+
+/*
+ *
+ *
+ * RTDir stuff.
+ * RTDir stuff.
+ * RTDir stuff.
+ *
+ *
+ */
+
+
+/**
+ * Helper for cooking up a path string for rtDirOpenRelativeOrHandle.
+ *
+ * @returns IPRT status code.
+ * @param   pszDst              The destination buffer.
+ * @param   cbDst               The size of the destination buffer.
+ * @param   pThis               The directory this is relative to.
+ * @param   pNtPath             The NT path with a possibly relative path.
+ * @param   fRelative           Whether @a pNtPath is relative or not.
+ * @param   pszPath             The input path.
+ */
+static int rtDirRelJoinPathForDirOpen(char *pszDst, size_t cbDst, PRTDIRINTERNAL pThis,
+                                      PUNICODE_STRING pNtPath, bool fRelative, const char *pszPath)
+{
+    int rc;
+    if (fRelative)
+    {
+        size_t cchRel = 0;
+        rc = RTUtf16CalcUtf8LenEx(pNtPath->Buffer, pNtPath->Length / sizeof(RTUTF16), &cchRel);
+        AssertRC(rc);
+        if (RT_SUCCESS(rc))
+        {
+            if (pThis->cchPath + cchRel < cbDst)
+            {
+                size_t cchBase = pThis->cchPath;
+                memcpy(pszDst, pThis->pszPath, cchBase);
+                pszDst += cchBase;
+                cbDst  -= cchBase;
+                rc = RTUtf16ToUtf8Ex(pNtPath->Buffer, pNtPath->Length / sizeof(RTUTF16), &pszDst, cbDst, NULL);
+            }
+            else
+                rc = VERR_FILENAME_TOO_LONG;
+        }
+    }
+    else
+    {
+        /** @todo would be better to convert pNtName to DOS/WIN path here,
+         *        as it is absolute and doesn't need stuff resolved. */
+        rc = RTPathJoin(pszDst, cbDst, pThis->pszPath, pszPath);
+    }
+    return rc;
+}
+
+RTDECL(int) RTDirRelDirOpen(RTDIR hDir, const char *pszDir, RTDIR *phDir)
+{
+    return RTDirRelDirOpenFiltered(hDir, pszDir, RTDIRFILTER_NONE, 0 /*fFlags*/, phDir);
+}
+
+
+RTDECL(int) RTDirRelDirOpenFiltered(RTDIR hDir, const char *pszDirAndFilter, RTDIRFILTER enmFilter,
+                                    uint32_t fFlags, RTDIR *phDir)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    /*
+     * Convert and normalize the path.
+     */
+    UNICODE_STRING NtName;
+    HANDLE hRoot = pThis->hDir;
+    int rc = RTNtPathRelativeFromUtf8(&NtName, &hRoot, pszDirAndFilter, RTDIRREL_NT_GET_ASCENT(pThis),
+                                      pThis->enmInfoClass == FileMaximumInformation);
+    if (RT_SUCCESS(rc))
+    {
+        char szAbsDirAndFilter[RTPATH_MAX];
+        rc = rtDirRelJoinPathForDirOpen(szAbsDirAndFilter, sizeof(szAbsDirAndFilter), pThis,
+                                        &NtName, hRoot != NULL, pszDirAndFilter);
+        if (RT_SUCCESS(rc))
+        {
+            /* Drop the filter from the NT name. */
+            switch (enmFilter)
+            {
+                case RTDIRFILTER_NONE:
+                    break;
+                case RTDIRFILTER_WINNT:
+                case RTDIRFILTER_UNIX:
+                case RTDIRFILTER_UNIX_UPCASED:
+                {
+                    size_t cwc = NtName.Length / sizeof(RTUTF16);
+                    while (   cwc > 0
+                           && NtName.Buffer[cwc - 1] != '\\')
+                        cwc--;
+                    NtName.Buffer[cwc] = '\0';
+                    NtName.Length = (uint16_t)(cwc * sizeof(RTUTF16));
+                    break;
+                }
+                default:
+                    AssertFailedBreak();
+            }
+
+            rc = rtDirOpenRelativeOrHandle(phDir, szAbsDirAndFilter, enmFilter, fFlags, (uintptr_t)hRoot, &NtName);
+        }
+        RTNtPathFree(&NtName, NULL);
+    }
+    return rc;
+}
+
+
+RTDECL(int) RTDirRelDirCreate(RTDIR hDir, const char *pszRelPath, RTFMODE fMode, uint32_t fCreate, RTDIR *phSubDir)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+    AssertReturn(!(fCreate & ~RTDIRCREATE_FLAGS_VALID_MASK), VERR_INVALID_FLAGS);
+    fMode = rtFsModeNormalize(fMode, pszRelPath, 0);
+    AssertReturn(rtFsModeIsValidPermissions(fMode), VERR_INVALID_FMODE);
+    AssertPtrNullReturn(phSubDir, VERR_INVALID_POINTER);
+
+    /*
+     * Convert and normalize the path.
+     */
+    UNICODE_STRING NtName;
+    HANDLE hRoot = pThis->hDir;
+    int rc = RTNtPathRelativeFromUtf8(&NtName, &hRoot, pszRelPath, RTDIRREL_NT_GET_ASCENT(pThis),
+                                      pThis->enmInfoClass == FileMaximumInformation);
+    if (RT_SUCCESS(rc))
+    {
+        HANDLE              hNewDir = RTNT_INVALID_HANDLE_VALUE;
+        IO_STATUS_BLOCK     Ios     = RTNT_IO_STATUS_BLOCK_INITIALIZER;
+        OBJECT_ATTRIBUTES   ObjAttr;
+        InitializeObjectAttributes(&ObjAttr, &NtName, 0 /*fAttrib*/, hRoot, NULL);
+
+        ULONG fDirAttribs = (fCreate & RTFS_DOS_MASK_NT) >> RTFS_DOS_SHIFT;
+        if (!(fCreate & RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_DONT_SET))
+            fDirAttribs |= FILE_ATTRIBUTE_NOT_CONTENT_INDEXED;
+        if (!fDirAttribs)
+            fDirAttribs = FILE_ATTRIBUTE_NORMAL;
+
+        NTSTATUS rcNt = NtCreateFile(&hNewDir,
+                                     phSubDir
+                                     ? FILE_WRITE_ATTRIBUTES | FILE_READ_ATTRIBUTES | FILE_LIST_DIRECTORY | FILE_TRAVERSE | SYNCHRONIZE
+                                     : SYNCHRONIZE,
+                                     &ObjAttr,
+                                     &Ios,
+                                     NULL /*AllocationSize*/,
+                                     fDirAttribs,
+                                     FILE_SHARE_READ | FILE_SHARE_WRITE,
+                                     FILE_CREATE,
+                                     FILE_DIRECTORY_FILE | FILE_OPEN_FOR_BACKUP_INTENT | FILE_SYNCHRONOUS_IO_NONALERT,
+                                     NULL /*EaBuffer*/,
+                                     0 /*EaLength*/);
+
+        /* Just in case someone takes offence at FILE_ATTRIBUTE_NOT_CONTENT_INDEXED. */
+        if (   (   rcNt == STATUS_INVALID_PARAMETER
+                || rcNt == STATUS_INVALID_PARAMETER_7)
+            && (fDirAttribs & FILE_ATTRIBUTE_NOT_CONTENT_INDEXED)
+            && (fCreate & RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_NOT_CRITICAL) )
+        {
+            fDirAttribs &= ~FILE_ATTRIBUTE_NOT_CONTENT_INDEXED;
+            if (!fDirAttribs)
+                fDirAttribs = FILE_ATTRIBUTE_NORMAL;
+            rcNt = NtCreateFile(&hNewDir,
+                                phSubDir
+                                ? FILE_WRITE_ATTRIBUTES | FILE_READ_ATTRIBUTES | FILE_LIST_DIRECTORY | FILE_TRAVERSE | SYNCHRONIZE
+                                : SYNCHRONIZE,
+                                &ObjAttr,
+                                &Ios,
+                                NULL /*AllocationSize*/,
+                                fDirAttribs,
+                                FILE_SHARE_READ | FILE_SHARE_WRITE,
+                                FILE_CREATE,
+                                FILE_DIRECTORY_FILE | FILE_OPEN_FOR_BACKUP_INTENT | FILE_SYNCHRONOUS_IO_NONALERT,
+                                NULL /*EaBuffer*/,
+                                0 /*EaLength*/);
+        }
+
+        if (NT_SUCCESS(rcNt))
+        {
+            if (!phSubDir)
+            {
+                NtClose(hNewDir);
+                rc = VINF_SUCCESS;
+            }
+            else
+            {
+                char szAbsDirAndFilter[RTPATH_MAX];
+                rc = rtDirRelJoinPathForDirOpen(szAbsDirAndFilter, sizeof(szAbsDirAndFilter), pThis,
+                                                &NtName, hRoot != NULL, pszRelPath);
+                if (RT_SUCCESS(rc))
+                    rc = rtDirOpenRelativeOrHandle(phSubDir, pszRelPath, RTDIRFILTER_NONE, 0 /*fFlags*/,
+                                                   (uintptr_t)hNewDir, NULL /*pvNativeRelative*/);
+                if (RT_FAILURE(rc))
+                    NtClose(hNewDir);
+            }
+        }
+        else
+            rc = RTErrConvertFromNtStatus(rcNt);
+        RTNtPathFree(&NtName, NULL);
+    }
+    return rc;
+}
+
+
+RTDECL(int) RTDirRelDirRemove(RTDIR hDir, const char *pszRelPath)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    /*
+     * Convert and normalize the path.
+     */
+    UNICODE_STRING NtName;
+    HANDLE hRoot = pThis->hDir;
+    int rc = RTNtPathRelativeFromUtf8(&NtName, &hRoot, pszRelPath, RTDIRREL_NT_GET_ASCENT(pThis),
+                                      pThis->enmInfoClass == FileMaximumInformation);
+    if (RT_SUCCESS(rc))
+    {
+        HANDLE              hSubDir = RTNT_INVALID_HANDLE_VALUE;
+        IO_STATUS_BLOCK     Ios     = RTNT_IO_STATUS_BLOCK_INITIALIZER;
+        OBJECT_ATTRIBUTES   ObjAttr;
+        InitializeObjectAttributes(&ObjAttr, &NtName, 0 /*fAttrib*/, hRoot, NULL);
+
+        NTSTATUS rcNt = NtCreateFile(&hSubDir,
+                                     DELETE | SYNCHRONIZE,
+                                     &ObjAttr,
+                                     &Ios,
+                                     NULL /*AllocationSize*/,
+                                     FILE_ATTRIBUTE_NORMAL,
+                                     FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
+                                     FILE_OPEN,
+                                     FILE_DIRECTORY_FILE | FILE_OPEN_FOR_BACKUP_INTENT | FILE_SYNCHRONOUS_IO_NONALERT | FILE_OPEN_REPARSE_POINT,
+                                     NULL /*EaBuffer*/,
+                                     0 /*EaLength*/);
+        if (NT_SUCCESS(rcNt))
+        {
+            FILE_DISPOSITION_INFORMATION DispInfo;
+            DispInfo.DeleteFile = TRUE;
+            RTNT_IO_STATUS_BLOCK_REINIT(&Ios);
+            rcNt = NtSetInformationFile(hSubDir, &Ios, &DispInfo, sizeof(DispInfo), FileDispositionInformation);
+
+            NTSTATUS rcNt2 = NtClose(hSubDir);
+            if (!NT_SUCCESS(rcNt2) && NT_SUCCESS(rcNt))
+                rcNt = rcNt2;
+        }
+
+        if (NT_SUCCESS(rcNt))
+            rc = VINF_SUCCESS;
+        else
+            rc = RTErrConvertFromNtStatus(rcNt);
+
+        RTNtPathFree(&NtName, NULL);
+    }
+    return rc;
+}
+
+
+/*
+ *
+ * RTPath stuff.
+ * RTPath stuff.
+ * RTPath stuff.
+ *
+ *
+ */
+
+
+RTDECL(int) RTDirRelPathQueryInfo(RTDIR hDir, const char *pszRelPath, PRTFSOBJINFO pObjInfo,
+                                  RTFSOBJATTRADD enmAddAttr, uint32_t fFlags)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    /*
+     * Validate and convert flags.
+     */
+    UNICODE_STRING NtName;
+    HANDLE hRoot = pThis->hDir;
+    int rc = RTNtPathRelativeFromUtf8(&NtName, &hRoot, pszRelPath, RTDIRREL_NT_GET_ASCENT(pThis),
+                                      pThis->enmInfoClass == FileMaximumInformation);
+    if (RT_SUCCESS(rc))
+    {
+        if (NtName.Length != 0 || hRoot == NULL)
+            rc = rtPathNtQueryInfoWorker(hRoot, &NtName, pObjInfo, enmAddAttr, fFlags, pszRelPath);
+        else
+            rc = RTDirQueryInfo(hDir, pObjInfo, enmAddAttr);
+       RTNtPathFree(&NtName, NULL);
+    }
+    return rc;
+}
+
+
+/**
+ * Changes the mode flags of a file system object relative to @a hDir.
+ *
+ * The API requires at least one of the mode flag sets (Unix/Dos) to
+ * be set. The type is ignored.
+ *
+ * @returns IPRT status code.
+ * @param   hDir            The directory @a pszRelPath is relative to.
+ * @param   pszRelPath      The relative path to the file system object.
+ * @param   fMode           The new file mode, see @ref grp_rt_fs for details.
+ * @param   fFlags          RTPATH_F_ON_LINK or RTPATH_F_FOLLOW_LINK.
+ *
+ * @sa      RTPathSetMode
+ */
+RTDECL(int) RTDirRelPathSetMode(RTDIR hDir, const char *pszRelPath, RTFMODE fMode, uint32_t fFlags)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+    fMode = rtFsModeNormalize(fMode, pszRelPath, 0);
+    AssertReturn(rtFsModeIsValidPermissions(fMode), VERR_INVALID_FMODE);
+    AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_FLAGS);
+
+    /*
+     * Convert and normalize the path.
+     */
+    UNICODE_STRING NtName;
+    HANDLE hRoot = pThis->hDir;
+    int rc = RTNtPathRelativeFromUtf8(&NtName, &hRoot, pszRelPath, RTDIRREL_NT_GET_ASCENT(pThis),
+                                      pThis->enmInfoClass == FileMaximumInformation);
+    if (RT_SUCCESS(rc))
+    {
+        HANDLE              hSubDir = RTNT_INVALID_HANDLE_VALUE;
+        IO_STATUS_BLOCK     Ios     = RTNT_IO_STATUS_BLOCK_INITIALIZER;
+        OBJECT_ATTRIBUTES   ObjAttr;
+        InitializeObjectAttributes(&ObjAttr, &NtName, 0 /*fAttrib*/, hRoot, NULL);
+
+        ULONG fOpenOptions = FILE_OPEN_FOR_BACKUP_INTENT | FILE_SYNCHRONOUS_IO_NONALERT | FILE_OPEN_REPARSE_POINT;
+        if (fFlags & RTPATH_F_ON_LINK)
+            fOpenOptions |= FILE_OPEN_REPARSE_POINT;
+        NTSTATUS rcNt = NtCreateFile(&hSubDir,
+                                     FILE_WRITE_ATTRIBUTES | SYNCHRONIZE,
+                                     &ObjAttr,
+                                     &Ios,
+                                     NULL /*AllocationSize*/,
+                                     FILE_ATTRIBUTE_NORMAL,
+                                     FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
+                                     FILE_OPEN,
+                                     fOpenOptions,
+                                     NULL /*EaBuffer*/,
+                                     0 /*EaLength*/);
+        if (NT_SUCCESS(rcNt))
+        {
+            rc = rtNtFileSetModeWorker(hSubDir, fMode);
+
+            rcNt = NtClose(hSubDir);
+            if (!NT_SUCCESS(rcNt) && RT_SUCCESS(rc))
+                rc = RTErrConvertFromNtStatus(rcNt);
+        }
+        else
+            rc = RTErrConvertFromNtStatus(rcNt);
+
+        RTNtPathFree(&NtName, NULL);
+    }
+    return rc;
+}
+
+
+/**
+ * Changes one or more of the timestamps associated of file system object
+ * relative to @a hDir.
+ *
+ * @returns IPRT status code.
+ * @param   hDir                The directory @a pszRelPath is relative to.
+ * @param   pszRelPath          The relative path to the file system object.
+ * @param   pAccessTime         Pointer to the new access time.
+ * @param   pModificationTime   Pointer to the new modification time.
+ * @param   pChangeTime         Pointer to the new change time. NULL if not to be changed.
+ * @param   pBirthTime          Pointer to the new time of birth. NULL if not to be changed.
+ * @param   fFlags              RTPATH_F_ON_LINK or RTPATH_F_FOLLOW_LINK.
+ *
+ * @remark  The file system might not implement all these time attributes,
+ *          the API will ignore the ones which aren't supported.
+ *
+ * @remark  The file system might not implement the time resolution
+ *          employed by this interface, the time will be chopped to fit.
+ *
+ * @remark  The file system may update the change time even if it's
+ *          not specified.
+ *
+ * @remark  POSIX can only set Access & Modification and will always set both.
+ *
+ * @sa      RTPathSetTimesEx
+ */
+RTDECL(int) RTDirRelPathSetTimes(RTDIR hDir, const char *pszRelPath, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
+                                 PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime, uint32_t fFlags)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    char szPath[RTPATH_MAX];
+    int rc = rtDirRelBuildFullPath(pThis, szPath, sizeof(szPath), pszRelPath);
+    if (RT_SUCCESS(rc))
+    {
+RTAssertMsg2("DBG: RTDirRelPathSetTimes(%s)...\n", szPath);
+        rc = RTPathSetTimesEx(szPath, pAccessTime, pModificationTime, pChangeTime, pBirthTime, fFlags);
+    }
+    return rc;
+}
+
+
+/**
+ * Changes the owner and/or group of a file system object relative to @a hDir.
+ *
+ * @returns IPRT status code.
+ * @param   hDir            The directory @a pszRelPath is relative to.
+ * @param   pszRelPath      The relative path to the file system object.
+ * @param   uid             The new file owner user id.  Pass NIL_RTUID to leave
+ *                          this unchanged.
+ * @param   gid             The new group id.  Pass NIL_RTGID to leave this
+ *                          unchanged.
+ * @param   fFlags          RTPATH_F_ON_LINK or RTPATH_F_FOLLOW_LINK.
+ *
+ * @sa      RTPathSetOwnerEx
+ */
+RTDECL(int) RTDirRelPathSetOwner(RTDIR hDir, const char *pszRelPath, uint32_t uid, uint32_t gid, uint32_t fFlags)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    char szPath[RTPATH_MAX];
+    int rc = rtDirRelBuildFullPath(pThis, szPath, sizeof(szPath), pszRelPath);
+    if (RT_SUCCESS(rc))
+    {
+RTAssertMsg2("DBG: RTDirRelPathSetOwner(%s)...\n", szPath);
+#ifndef RT_OS_WINDOWS
+        rc = RTPathSetOwnerEx(szPath, uid, gid, fFlags);
+#else
+        rc = VERR_NOT_IMPLEMENTED;
+        RT_NOREF(uid, gid, fFlags);
+#endif
+    }
+    return rc;
+}
+
+
+/**
+ * Renames a directory relative path within a filesystem.
+ *
+ * This will rename symbolic links.  If RTPATHRENAME_FLAGS_REPLACE is used and
+ * pszDst is a symbolic link, it will be replaced and not its target.
+ *
+ * @returns IPRT status code.
+ * @param   hDirSrc         The directory the source path is relative to.
+ * @param   pszSrc          The source path, relative to @a hDirSrc.
+ * @param   hDirSrc         The directory the destination path is relative to.
+ * @param   pszDst          The destination path, relative to @a hDirDst.
+ * @param   fRename         Rename flags, RTPATHRENAME_FLAGS_XXX.
+ *
+ * @sa      RTPathRename
+ */
+RTDECL(int) RTDirRelPathRename(RTDIR hDirSrc, const char *pszSrc, RTDIR hDirDst, const char *pszDst, unsigned fRename)
+{
+    PRTDIRINTERNAL pThis = hDirSrc;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    PRTDIRINTERNAL pThat = hDirDst;
+    if (pThat != pThis)
+    {
+        AssertPtrReturn(pThat, VERR_INVALID_HANDLE);
+        AssertReturn(pThat->u32Magic != RTDIR_MAGIC, VERR_INVALID_HANDLE);
+    }
+
+    char szSrcPath[RTPATH_MAX];
+    int rc = rtDirRelBuildFullPath(pThis, szSrcPath, sizeof(szSrcPath), pszSrc);
+    if (RT_SUCCESS(rc))
+    {
+        char szDstPath[RTPATH_MAX];
+        rc = rtDirRelBuildFullPath(pThis, szDstPath, sizeof(szDstPath), pszDst);
+        if (RT_SUCCESS(rc))
+        {
+RTAssertMsg2("DBG: RTDirRelPathRename(%s,%s)...\n", szSrcPath, szDstPath);
+            rc = RTPathRename(szSrcPath, szDstPath, fRename);
+        }
+    }
+    return rc;
+}
+
+
+/**
+ * Removes the last component of the directory relative path.
+ *
+ * @returns IPRT status code.
+ * @param   hDir            The directory @a pszRelPath is relative to.
+ * @param   pszRelPath      The relative path to the file system object.
+ * @param   fUnlink         Unlink flags, RTPATHUNLINK_FLAGS_XXX.
+ *
+ * @sa      RTPathUnlink
+ */
+RTDECL(int) RTDirRelPathUnlink(RTDIR hDir, const char *pszRelPath, uint32_t fUnlink)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    char szPath[RTPATH_MAX];
+    int rc = rtDirRelBuildFullPath(pThis, szPath, sizeof(szPath), pszRelPath);
+    if (RT_SUCCESS(rc))
+    {
+RTAssertMsg2("DBG: RTDirRelPathUnlink(%s)...\n", szPath);
+        rc = RTPathUnlink(szPath, fUnlink);
+    }
+    return rc;
+}
+
+
+/*
+ *
+ * RTSymlink stuff.
+ * RTSymlink stuff.
+ * RTSymlink stuff.
+ *
+ *
+ */
+
+
+/**
+ * Creates a symbolic link (@a pszSymlink) relative to @a hDir targeting @a
+ * pszTarget.
+ *
+ * @returns IPRT status code.
+ * @param   hDir            The directory @a pszSymlink is relative to.
+ * @param   pszSymlink      The relative path of the symbolic link.
+ * @param   pszTarget       The path to the symbolic link target.  This is
+ *                          relative to @a pszSymlink or an absolute path.
+ * @param   enmType         The symbolic link type.  For Windows compatability
+ *                          it is very important to set this correctly.  When
+ *                          RTSYMLINKTYPE_UNKNOWN is used, the API will try
+ *                          make a guess and may attempt query information
+ *                          about @a pszTarget in the process.
+ * @param   fCreate         Create flags, RTSYMLINKCREATE_FLAGS_XXX.
+ *
+ * @sa      RTSymlinkCreate
+ */
+RTDECL(int) RTDirRelSymlinkCreate(RTDIR hDir, const char *pszSymlink, const char *pszTarget,
+                                  RTSYMLINKTYPE enmType, uint32_t fCreate)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    char szPath[RTPATH_MAX];
+    int rc = rtDirRelBuildFullPath(pThis, szPath, sizeof(szPath), pszSymlink);
+    if (RT_SUCCESS(rc))
+    {
+RTAssertMsg2("DBG: RTDirRelSymlinkCreate(%s)...\n", szPath);
+        rc = RTSymlinkCreate(szPath, pszTarget, enmType, fCreate);
+    }
+    return rc;
+}
+
+
+/**
+ * Read the symlink target relative to @a hDir.
+ *
+ * @returns IPRT status code.
+ * @retval  VERR_NOT_SYMLINK if @a pszSymlink does not specify a symbolic link.
+ * @retval  VERR_BUFFER_OVERFLOW if the link is larger than @a cbTarget.  The
+ *          buffer will contain what all we managed to read, fully terminated
+ *          if @a cbTarget > 0.
+ *
+ * @param   hDir            The directory @a pszSymlink is relative to.
+ * @param   pszSymlink      The relative path to the symbolic link that should
+ *                          be read.
+ * @param   pszTarget       The target buffer.
+ * @param   cbTarget        The size of the target buffer.
+ * @param   fRead           Read flags, RTSYMLINKREAD_FLAGS_XXX.
+ *
+ * @sa      RTSymlinkRead
+ */
+RTDECL(int) RTDirRelSymlinkRead(RTDIR hDir, const char *pszSymlink, char *pszTarget, size_t cbTarget, uint32_t fRead)
+{
+    PRTDIRINTERNAL pThis = hDir;
+    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
+    AssertReturn(pThis->u32Magic == RTDIR_MAGIC, VERR_INVALID_HANDLE);
+
+    char szPath[RTPATH_MAX];
+    int rc = rtDirRelBuildFullPath(pThis, szPath, sizeof(szPath), pszSymlink);
+    if (RT_SUCCESS(rc))
+    {
+RTAssertMsg2("DBG: RTDirRelSymlinkRead(%s)...\n", szPath);
+        rc = RTSymlinkRead(szPath, pszTarget, cbTarget, fRead);
+    }
+    return rc;
+}
+