build: version.properties: update for version 2020.1 Gold

This commit adds a new Stderr registry setting that can be used to redirect
the standard error output of a launched service instance.

.github/workflows/avm.yml

@@ -0,0 +1,15 @@
+name: avm
+
+on:
+  schedule:
+  - cron: '0 2,8,14,20 * * *'
+
+jobs:
+  scan:
+    runs-on: [windows-latest]
+    steps:
+    - uses: billziss-gh/avm@v1
+      with:
+        files: |
+            https://github.com/billziss-gh/winfsp/releases/download/v1.6/winfsp-1.6.20027.msi
+            https://github.com/billziss-gh/winfsp/releases/download/v1.7B1/winfsp-1.7.20038.msi

Changelog.asciidoc

@@ -1,7 +1,178 @@
 = Changelog
 
+v1.7B2 (2020.1 B2)::
 
-v1.4 (2019.2)::
+Changes since v1.6:
+
+* [FUSE] FUSE invalid directory entries no longer break the entire directory listing. Such invalid directory entries are logged. (GitHub PR #292.)
+* [LAUNCH] The Launcher can now restart file systems that have crashed. Set `Recovery=1` in the file system's registry entry.
+* [LAUNCH] The Launcher can now redirect file system standard error output. Set `Stderr=PATH` in the file system's registry entry.
+* [FIX] Work around a problem in CreateProcess/CreateSection that allowed a faulty or malicious file system to bugcheck Windows.
+* [FIX] Work around an incompatibility with Avast Antivirus.
+** Native and .NET file systems that experience this problem should set the flag `RejectIrpPriorToTransact0` in `FSP_FSCTL_VOLUME_PARAMS` to `1`. This is only required when mounting on a directory with Avast Antivirus present.
+** FUSE file systems do not need to do anything special as this flag is always enabled.
+* [FIX] Fix junction (mount point reparse point) handling. (GitHub issue #269.)
+
+
+v1.7B1 (2020.1 B1)::
+
+Changes since v1.6:
+
+* [FIX] Workaround an incompatibility with Avast Antivirus. (GitHub issue #221.)
+* [FIX] Fix junction (mount point reparse point) handling. (GitHub issue #269.)
+
+
+v1.6 (2020)::
+
+Changes since v1.5:
+
+* [FIX] Do no pass `O_APPEND` flag to FUSE file systems, which would result in data corruption under some circumstances. (See PR #272. Thanks @pfrejo.)
+* [FIX] Fix how rename target directories are opened (use `FILE_DIRECTORY_FILE`). (See PR #270. Thanks @hammerg.)
+
+
+v1.5 (2019.3)::
+
+Changes since v1.4:
+
+* [GEN] WinFsp file systems can now be used by WSLinux. File systems must enable this support by setting the `FSP_FSCTL_VOLUME_PARAMS::WslFeatures` bit. Use the command `sudo mount -t drvfs x: /mnt/x` to mount.
+* [GEN] Extended attribute support has been added for all WinFsp API's: native, .NET, FUSE2 and FUSE3.
+* [GEN] Mount Manager support has been added and it works for current and new file systems:
+** If the file system mountpoint is in the syntax `\\.\X:` then the Mount Manager is used.
+** If the file system mountpoint is in the syntax `X:` then `DefineDosDeviceW` is used (i.e. same as today).
+** If the file system mountpoint is in the syntax `X:\DIR` then a reparse point is used and the file system is mounted as a directory (i.e. same as today).
+** Caveats:
+*** It requires Administrator access. This is because opening the `\\.\MountPointManager` device requires Administrator access.
+*** It currently works with drives (`\\.\X:`) but not directories (`\\.\X:\DIR`).
+*** Mount Manager drives created by WinFsp are transient. WinFsp takes various steps to ensure that this is the case.
+*** Mount Manager drives are global and are visible across Terminal Services sessions (they go into the `\GLOBAL??` portion of the NT namespace).
+* [FSD] Support for kernel-mode file systems on top of WinFsp has been added. See `FspFsextProvider`. This is in preparation for WinFuse - FUSE for Windows and WSLinux.
+* [FSD] FastIO support has been added. FastIO operations are enabled on cache-enabled file systems with the notable exception of `FastIoQueryOpen`, which allows opening files in kernel mode; this operation requires the file system to specify the `FSP_FSCTL_VOLUME_PARAMS::AllowOpenInKernelMode` flag.
+* [FSD] Support for `FileFsSectorSizeInformation` and `IOCTL_STORAGE_QUERY_PROPERTY / StorageAccessAlignmentProperty` has been added.
+* [DLL] The `FspFileSystemStartDispatcher` default number of threads (`ThreadCount==0`) has been changed. See commit 3902874ac93fe40685d9761f46a96358ba24f24c for more.
+* [FUSE] FUSE has new `-o UserName=DOMAIN+USERNAME` and `-o GroupName=DOMAIN+GROUPNAME` options. These function like the `-o uid=UID` and `-o gid=GID` options, but accept Windows user and groups names.
+* [FUSE] FUSE has new `-o dothidden` option that is used to add the Windows hidden file attribute to files that start with a dot.
+* [FUSE] FUSE has new `-o create_file_umask=nnn` and `-o create_dir_umask=nnn` options that allow for more control than the `-o create_umask=nnn` option.
+* [FUSE] FUSE has new `--ExactFileSystemName=FSNAME` option that removes the "FUSE-" prefix from the file system name. (Use with caution: see discussion in PR #251.) (Thanks @johntyner.)
+* [.NET] The .NET API now supports asynchronous handling of `Read`, `Write` and `ReadDirectory`. (Thanks @dworkin.)
+* [.NET] The .NET API now supports fine-grained timeouts (`VolumeInfoTimeout`, `DirInfoTimeout`, etc).
+* [.NET] The .NET API has new method `FileSystemHost.MountEx` that adds a `ThreadCount` parameter.
+* [LAUNCH] The Launcher can now rewrite path arguments passed to file systems during launching using "Path Transformation Language". See commit a73f1b95592617ac7484e16c2e642573a4d65644 for more.
+* [MEMFS] A new memfs FUSE3 file system written in C++ has been added. See `tst/memfs-fuse3`.
+* [AIRFS] John Oberschelp has done some fantastic work adding persistence to the airfs file system. (Thanks @JohnOberschelp.)
+* [FIX] Fixes for very large (> 4GiB) files. (Thanks @dworkin.)
+* [FIX] A fix for how FUSE handles the return value from `opendir`. (GitHub issue billziss-gh/sshfs-win#54)
+* [FIX] A fix for an invalid UID to SID mapping on domains with a lot of users. (Thanks @sganis.)
+* [FIX] A fix on the C++ layer. (Thanks @colatkinson.)
+* Other fixes and improvements.
+
+
+v1.5B4 (2019.3 B4)::
+
+Changes since v1.4:
+
+* [GEN] WinFsp file systems can now be used by WSLinux. File systems must enable this support by setting the `FSP_FSCTL_VOLUME_PARAMS::WslFeatures` bit. Use the command `sudo mount -t drvfs x: /mnt/x` to mount.
+* [GEN] Extended attribute support has been added for all WinFsp API's: native, .NET, FUSE2 and FUSE3.
+* [GEN] Mount Manager support has been added and it works for current and new file systems:
+** If the file system mountpoint is in the syntax `\\.\X:` then the Mount Manager is used.
+** If the file system mountpoint is in the syntax `X:` then `DefineDosDeviceW` is used (i.e. same as today).
+** If the file system mountpoint is in the syntax `X:\DIR` then a reparse point is used and the file system is mounted as a directory (i.e. same as today).
+** Caveats:
+*** It requires Administrator access. This is because opening the `\\.\MountPointManager` device requires Administrator access.
+*** It currently works with drives (`\\.\X:`) but not directories (`\\.\X:\DIR`).
+*** Mount Manager drives created by WinFsp are transient. WinFsp takes various steps to ensure that this is the case.
+*** Mount Manager drives are global and are visible across Terminal Services sessions (they go into the `\GLOBAL??` portion of the NT namespace).
+* [FSD] Support for kernel-mode file systems on top of WinFsp has been added. See `FspFsextProvider`. This is in preparation for WinFuse - FUSE for Windows and WSLinux.
+* [FSD] FastIO support has been added. FastIO operations are enabled on cache-enabled file systems with the notable exception of `FastIoQueryOpen`, which allows opening files in kernel mode; this operation requires the file system to specify the `FSP_FSCTL_VOLUME_PARAMS::AllowOpenInKernelMode` flag.
+* [FSD] Support for `FileFsSectorSizeInformation` and `IOCTL_STORAGE_QUERY_PROPERTY / StorageAccessAlignmentProperty` has been added.
+* [DLL] The `FspFileSystemStartDispatcher` default number of threads (`ThreadCount==0`) has been changed. See commit 3902874ac93fe40685d9761f46a96358ba24f24c for more.
+* [FUSE] FUSE has new `-o UserName=DOMAIN+USERNAME` and `-o GroupName=DOMAIN+GROUPNAME` options. These function like the `-o uid=UID` and `-o gid=GID` options, but accept Windows user and groups names.
+* [FUSE] FUSE has new `-o dothidden` option that is used to add the Windows hidden file attribute to files that start with a dot.
+* [FUSE] FUSE has new `-o create_file_umask=nnn` and `-o create_dir_umask=nnn` options that allow for more control than the `-o create_umask=nnn` option.
+* [FUSE] FUSE has new `--ExactFileSystemName=FSNAME` option that removes the "FUSE-" prefix from the file system name. (Use with caution: see discussion in PR #251.) (Thanks @johntyner.)
+* [.NET] The .NET API now supports asynchronous handling of `Read`, `Write` and `ReadDirectory`. (Thanks @dworkin.)
+* [.NET] The .NET API now supports fine-grained timeouts (`VolumeInfoTimeout`, `DirInfoTimeout`, etc).
+* [.NET] The .NET API has new method `FileSystemHost.MountEx` that adds a `ThreadCount` parameter.
+* [LAUNCH] The Launcher can now rewrite path arguments passed to file systems during launching using "Path Transformation Language". See commit a73f1b95592617ac7484e16c2e642573a4d65644 for more.
+* [MEMFS] A new memfs FUSE3 file system written in C++ has been added. See `tst/memfs-fuse3`.
+* [AIRFS] John Oberschelp has done some fantastic work adding persistence to the airfs file system. (Thanks @JohnOberschelp.)
+* [FIX] Fixes for very large (> 4GiB) files. (Thanks @dworkin.)
+* [FIX] A fix for how FUSE handles the return value from `opendir`. (GitHub issue billziss-gh/sshfs-win#54)
+* [FIX] A fix for an invalid UID to SID mapping on domains with a lot of users. (Thanks @sganis.)
+* [FIX] A fix on the C++ layer. (Thanks @colatkinson.)
+* Other fixes and improvements.
+
+
+v1.5B3 (2019.3 B3)::
+
+Changes since v1.4:
+
+* [GEN] WinFsp file systems can now be used by WSLinux. Use the command `sudo mount -t drvfs x: /mnt/x` to mount.
+* [GEN] Extended attribute support has been added for all WinFsp API's: native, .NET, FUSE2 and FUSE3.
+* [GEN] Mount Manager support has been added and it works for current and new file systems:
+** If the file system mountpoint is in the syntax `\\.\X:` then the Mount Manager is used.
+** If the file system mountpoint is in the syntax `X:` then `DefineDosDeviceW` is used (i.e. same as today).
+** If the file system mountpoint is in the syntax `X:\DIR` then a reparse point is used and the file system is mounted as a directory (i.e. same as today).
+** Caveats:
+*** It requires Administrator access. This is because opening the `\\.\MountPointManager` device requires Administrator access.
+*** It currently works with drives (`\\.\X:`) but not directories (`\\.\X:\DIR`).
+*** Mount Manager drives created by WinFsp are transient. WinFsp takes various steps to ensure that this is the case.
+*** Mount Manager drives are global and are visible across Terminal Services sessions (they go into the `\GLOBAL??` portion of the NT namespace).
+* [FSD] Support for kernel-mode file systems on top of WinFsp has been added. See `FspFsextProvider`. This is in preparation for WinFuse - FUSE for Windows and WSLinux.
+* [FSD] FastIO support has been added. FastIO operations are enabled on cache-enabled file systems with the notable exception of `FastIoQueryOpen`, which allows opening files in kernel mode; this operation requires the file system to specify the `FSP_FSCTL_VOLUME_PARAMS::AllowOpenInKernelMode` flag.
+* [FSD] Support for `FileFsSectorSizeInformation` and `IOCTL_STORAGE_QUERY_PROPERTY / StorageAccessAlignmentProperty` has been added.
+* [DLL] The `FspFileSystemStartDispatcher` default number of threads (`ThreadCount==0`) has been changed. See commit 3902874ac93fe40685d9761f46a96358ba24f24c for more.
+* [FUSE] FUSE has new `-o UserName=DOMAIN+USERNAME` and `-o GroupName=DOMAIN+GROUPNAME` options. These function like the `-o uid=UID` and `-o gid=GID` options, but accept Windows user and groups names.
+* [FUSE] FUSE has new `-o dothidden` option that is used to add the Windows hidden file attribute to files that start with a dot.
+* [FUSE] FUSE has new `-o create_file_umask=nnn` and `-o create_dir_umask=nnn` options that allow for more control than the `-o create_umask=nnn` option.
+* [FUSE] FUSE has new `--ExactFileSystemName=FSNAME` option that removes the "FUSE-" prefix from the file system name. (Use with caution: see discussion in PR #251.) (Thanks @johntyner.)
+* [.NET] The .NET API now supports asynchronous handling of `Read`, `Write` and `ReadDirectory`. (Thanks @dworkin.)
+* [.NET] The .NET API now supports fine-grained timeouts (`VolumeInfoTimeout`, `DirInfoTimeout`, etc).
+* [.NET] The .NET API has new method `FileSystemHost.MountEx` that adds a `ThreadCount` parameter.
+* [LAUNCH] The Launcher can now rewrite path arguments passed to file systems during launching using "Path Transformation Language". See commit a73f1b95592617ac7484e16c2e642573a4d65644 for more.
+* [MEMFS] A new memfs FUSE3 file system written in C++ has been added. See `tst/memfs-fuse3`.
+* [AIRFS] John Oberschelp has done some fantastic work adding persistence to the airfs file system. (Thanks @JohnOberschelp.)
+* [FIX] Fixes for very large (> 4GiB) files. (Thanks @dworkin.)
+* [FIX] A fix for how FUSE handles the return value from `opendir`. (GitHub issue billziss-gh/sshfs-win#54)
+* [FIX] A fix for an invalid UID to SID mapping on domains with a lot of users. (Thanks @sganis.)
+* [FIX] A fix on the C++ layer. (Thanks @colatkinson.)
+* Other fixes and improvements.
+
+
+v1.5B2 (2019.3 B2)::
+
+Changes since v1.4:
+
+* [GEN] WinFsp file systems can now be used by WSLinux. Use the command `sudo mount -t drvfs x: /mnt/x` to mount.
+* [GEN] Extended attribute support has been added for all WinFsp API's: native, .NET, FUSE2 and FUSE3.
+* [FSD] Support for kernel-mode file systems on top of WinFsp has been added. See `FspFsextProvider`. This is in preparation for WinFuse - FUSE for Windows and WSLinux.
+* [FSD] FastIO support has been added. FastIO operations are enabled on cache-enabled file systems with the notable exception of `FastIoQueryOpen`, which allows opening files in kernel mode; this operation requires the file system to specify the `FSP_FSCTL_VOLUME_PARAMS::AllowOpenInKernelMode` flag.
+* [DLL] The `FspFileSystemStartDispatcher` default number of threads (`ThreadCount==0`) has been changed. See commit 3902874ac93fe40685d9761f46a96358ba24f24c for more.
+* [FUSE] FUSE has new `-o UserName=DOMAIN\USERNAME` and `-o GroupName=DOMAIN\GROUPNAME` options. These function like the `-o uid=UID` and `-o gid=GID` options, but accept Windows user and groups names.
+* [FUSE] FUSE has new `-o dothidden` option that is used to add the Windows hidden file attribute to files that start with a dot.
+* [FUSE] FUSE has new `-o create_file_umask=nnn` and `-o create_dir_umask=nnn` options that allow for more control than the `-o create_umask=nnn` option.
+* [.NET] The .NET API now supports asynchronous handling of `Read`, `Write` and `ReadDirectory`. (Thanks @dworkin.)
+* [.NET] The .NET API now supports fine-grained timeouts (`VolumeInfoTimeout`, `DirInfoTimeout`, etc).
+* [.NET] The .NET API has new method `FileSystemHost.MountEx` that adds a `ThreadCount` parameter.
+* [LAUNCH] The Launcher can now rewrite path arguments passed to file systems during launching using "Path Transformation Language". See commit a73f1b95592617ac7484e16c2e642573a4d65644 for more.
+* [FIX] Fixes for very large (> 4GiB) files. (Thanks @dworkin.)
+* [FIX] A fix for how FUSE handles the return value from `opendir`. (GitHub issue billziss-gh/sshfs-win#54)
+* [FIX] A fix for an invalid UID to SID mapping on domains with a lot of users. (Thanks @sganis.)
+* [FIX] A fix on the C++ layer. (Thanks @colatkinson.)
+* Other fixes and improvements.
+
+
+v1.5B1 (2019.3 B1)::
+
+Changes since v1.4:
+
+* Extended attribute support has been added for all WinFsp API's: native, .NET, FUSE2 and FUSE3.
+* Initial FastIO support has been added. FastIO operations are enabled on cache-enabled file systems with the notable exception of `FastIoQueryOpen`, which allows opening files in kernel mode; this operation requires the file system to specify the `FSP_FSCTL_VOLUME_PARAMS::AllowOpenInKernelMode` flag.
+* Fixes for very large (> 4GiB) files. (Thanks @dworkin.)
+* A fix for an invalid UID to SID mapping on domains with a lot of users. (Thanks @sganis.)
+* A fix on the C++ layer. (Thanks @colatkinson.)
+
+
+v1.4.19049 (2019.2)::
 
 Changes since v1.3:
 

Contributors.asciidoc

@@ -56,9 +56,16 @@ CONTRIBUTOR LIST
 |===
 |Ben Rubson                                                     |ben.rubson at gmail.com
 |Bill Zissimopoulos                                             |billziss at navimatics.com
+|Brett Dutro                                                    |brett.dutro at gmail.com
+|Colin Atkinson (Atakama, https://atakama.com)                  |colin at atakama.com
+|Felix Croes                                                    |felix at dworkin.nl
 |Francois Karam (KS2, http://www.ks2.fr)                        |francois.karam at ks2.fr
 |Fritz Elfert                                                   |fritz-github at fritz-elfert.de
+|Gal Hammer (Red Hat, https://www.redhat.com)                   |ghammer at redhat.com
 |John Oberschelp                                                |john at oberschelp.net
+|John Tyner                                                     |jtyner at gmail.com
+|Pedro Frejo (Arpa System, https://arpasystem.com)              |pedro.frejo at arpasystem.com
 |Sam Kelly (DuroSoft Technologies LLC, https://durosoft.com)    |sam at durosoft.com
+|Santiago Ganis                                                 |sganis at gmail.com
 |Tobias Urlaub                                                  |saibotu at outlook.de
 |===

README.md

@@ -29,13 +29,16 @@
     </a>
     <br/>
     <br/>
+    <b>Check out my new kernel driver project <a href="https://github.com/billziss-gh/winspd">WinSpd</a>.</b>
+    <br/>
+    <br/>
 </p>
 
 <p align="center">
     WinFsp is a set of software components for Windows computers that allows the creation of user mode file systems. In this sense it is similar to FUSE (Filesystem in Userspace), which provides the same functionality on UNIX-like computers.
     <br/>
     <br/>
-    <img src="http://www.secfs.net/winfsp/files/cap.gif" height="450"/>
+    <img src="doc/cap.gif" height="450"/>
 </p>
 
 ## Benefits
@@ -93,6 +96,7 @@ The project source code is organized as follows:
     * :file_folder: [src/dll/fuse3](src/dll/fuse3): Source code to the FUSE3 compatibility layer.
     * :file_folder: [src/dotnet](src/dotnet): Source code to the .NET layer.
     * :file_folder: [src/fsptool](src/fsptool): Source code to fsptool command line utility.
+    * :file_folder: [src/ku](src/ku): Source code that can be used from kernel or user mode.
     * :file_folder: [src/launcher](src/launcher): Source code to the launcher service and the launchctl utility.
     * :file_folder: [src/sys](src/sys): Source code to the WinFsp FSD.
 * :file_folder: [opt/cygfuse](opt/cygfuse): Source code to the FUSE for Cygwin package.
@@ -104,15 +108,19 @@ The project source code is organized as follows:
 
 In order to build WinFsp you will need the following:
 
-* Visual Studio 2015
+* Visual Studio 2015 - 2019
 * Windows Driver Kit (WDK) 10
+    - **NOTE**: When using the latest WDK (Windows 10.0.18362.1) with Visual Studio 2015 you may get an error about a missing task `ValidateNTTargetVersion`. The fix is to edit the file `\Program Files (x86)\Windows Kits\10\build\WindowsDriver.Common.targets` and modify the `UsingTask` line for `ValidateNTTargetVersion` as follows:
+        ```
+        <UsingTask TaskName="ValidateNTTargetVersion" AssemblyFile="$(WDKContentRoot)build\bin\Microsoft.DriverKit.Build.Tasks.16.0.dll"/>
+        ```
 * [Wix toolset](http://wixtoolset.org)
 
 To fully build WinFsp (including the installer) you must use `tools\build.bat`. By default it builds a Release build, but you can choose either the Debug or Release configuration by using the syntax:
 
     tools\build.bat CONFIGURATION
 
-If you build the driver yourself it will not be signed and Windows will refuse to load it unless you enable "testsigning". You can enable "testsigning" using the command `bcdedit.exe -set testsigning on`. For more information see this [document](http://www.secfs.net/winfsp/develop/debug/).
+If you build the driver yourself it will not be signed and Windows will refuse to load it unless you enable "testsigning". You can enable "testsigning" using the command `bcdedit.exe -set testsigning on`. For more information see this [document](doc/WinFsp-Debugging-Setup.asciidoc).
 
 WinFsp is designed to run on Windows 7 and above. It has been tested on the following platforms:
 

appveyor.yml

@@ -11,7 +11,17 @@ environment:
   #- CONFIGURATION: Release
   #  TESTING: Perf
 
+init:
+#- ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+
 install:
+- ps: |
+    # Hack to make WDK 1903 work on VS2015.
+    # See https://github.com/appveyor-tests/WDK-10.0.14393.0/blob/31cf12217fe0c92b218c70d7027dfe145be4f4cb/appveyor.yml#L7
+    [xml]$targets = get-content "C:\Program Files (x86)\Windows Kits\10\build\WindowsDriver.Common.targets"
+    $usingTask = $targets.ChildNodes[1].UsingTask | ? {$_.TaskName -eq "ValidateNTTargetVersion"}
+    $usingTask.AssemblyFile = '$(WDKContentRoot)build\bin\Microsoft.DriverKit.Build.Tasks.16.0.dll'
+    $targets.Save("C:\Program Files (x86)\Windows Kits\10\build\WindowsDriver.Common.targets")
 - git submodule update --init --recursive
 - appveyor AddMessage "Change boot configuration and reboot" -Category Information
 - bcdedit /set testsigning on
@@ -22,11 +32,17 @@ install:
 
 build_script:
 - appveyor AddMessage "Reboot complete" -Category Information
+# build cygfuse
+- C:\cygwin64\setup-x86_64.exe -qnNd -P cygport
+- C:\cygwin64\bin\bash --login -c "make -C '%CD%\opt\cygfuse' dist"
+- C:\cygwin\setup-x86.exe -qnNd -P cygport
+- C:\cygwin\bin\bash --login -c "make -C '%CD%\opt\cygfuse' dist"
+# build winfsp
 - tools\build.bat %CONFIGURATION%
 
 test_script:
-- choco install winfsp -s build\VStudio\build\%CONFIGURATION% -y
-- if %TESTING%==Func appveyor DownloadFile http://www.secfs.net/winfsp/resources/Test.Filter.Driver.zip && 7z x Test.Filter.Driver.zip
+- choco install winfsp -s build\VStudio\build\%CONFIGURATION% -y --pre
+- if %TESTING%==Func appveyor DownloadFile http://www.secfs.net/Test.Filter.Driver.zip && 7z x Test.Filter.Driver.zip
 - if %TESTING%==Func start /wait msiexec /i "Test.Filter.Driver\HCK Filter.Driver Content-x86_en-us.msi" /qn
 - if %TESTING%==Func tools\nmake-ext-test.bat %CONFIGURATION%
 - if %TESTING%==Func tools\run-tests.bat %CONFIGURATION%
@@ -42,3 +58,4 @@ test_script:
 on_finish:
 - if exist %SystemRoot%\memory.dmp (7z a memory.dmp.zip %SystemRoot%\memory.dmp && appveyor PushArtifact memory.dmp.zip)
 - verifier /query
+#- ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))

build/VStudio/.gitignore

@@ -4,3 +4,6 @@ build
 *.vcproj.*
 *.vcxproj.user
 *.csproj.user
+*.VC.db
+*.VC.opendb
+.vs

build/VStudio/installer/CustomActions/CustomActions.cpp

@@ -1,7 +1,7 @@
 /**
  * @file CustomActions.cpp
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

build/VStudio/installer/CustomActions/CustomActions.vcxproj

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\..\version.properties" />
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -14,18 +15,18 @@
     <ProjectGuid>{95C223E6-B5F1-4FD0-9376-41CDBC824445}</ProjectGuid>
     <RootNamespace>CustomActions</RootNamespace>
     <Keyword>Win32Proj</Keyword>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
     <WholeProgramOptimization>true</WholeProgramOptimization>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
@@ -68,7 +69,6 @@
       <AdditionalDependencies>msi.lib;dutil.lib;wcautil.lib;Version.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(WIX)sdk\VS2015\lib\x86;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <ModuleDefinitionFile>CustomActions.def</ModuleDefinitionFile>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Windows</SubSystem>
       <TargetMachine>MachineX86</TargetMachine>
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
@@ -92,7 +92,6 @@
       <AdditionalDependencies>msi.lib;dutil.lib;wcautil.lib;Version.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>$(WIX)sdk\VS2015\lib\x86;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <ModuleDefinitionFile>CustomActions.def</ModuleDefinitionFile>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Windows</SubSystem>
       <OptimizeReferences>true</OptimizeReferences>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>

build/VStudio/installer/Product.wxs

@@ -348,18 +348,18 @@
             <Directory Id="OPTDIR.cygfuse" Name="cygfuse" FileSource="..\..\..\opt\cygfuse\dist">
                 <Directory Id="OPTDIR.cygfuse.x64" Name="x64">
                     <Component Id="C.fuse.tar.xz.x64">
-                        <File Id="FILE.fuse.tar.xz.x64" Name="fuse-2.8-9.tar.xz" KeyPath="yes" />
+                        <File Id="FILE.fuse.tar.xz.x64" Name="fuse-2.8-10.tar.xz" KeyPath="yes" />
                     </Component>
                     <Component Id="C.fuse3.tar.xz.x64">
-                        <File Id="FILE.fuse3.tar.xz.x64" Name="fuse3-3.2-1.tar.xz" KeyPath="yes" />
+                        <File Id="FILE.fuse3.tar.xz.x64" Name="fuse3-3.2-2.tar.xz" KeyPath="yes" />
                     </Component>
                 </Directory>
                 <Directory Id="OPTDIR.cygfuse.x86" Name="x86">
                     <Component Id="C.fuse.tar.xz.x86">
-                        <File Id="FILE.fuse.tar.xz.x86" Name="fuse-2.8-9.tar.xz" KeyPath="yes" />
+                        <File Id="FILE.fuse.tar.xz.x86" Name="fuse-2.8-10.tar.xz" KeyPath="yes" />
                     </Component>
                     <Component Id="C.fuse3.tar.xz.x86">
-                        <File Id="FILE.fuse3.tar.xz.x86" Name="fuse3-3.2-1.tar.xz" KeyPath="yes" />
+                        <File Id="FILE.fuse3.tar.xz.x86" Name="fuse3-3.2-2.tar.xz" KeyPath="yes" />
                     </Component>
                 </Directory>
                 <Component Id="C.fuse.install.sh">
@@ -369,6 +369,23 @@
                     <File Name="uninstall.sh" KeyPath="yes" />
                 </Component>
             </Directory>
+            <Directory Id="OPTDIR.fsext" Name="fsext" FileSource="..\..\..\opt\fsext">
+                <Directory Id="OPTDIR.fsext.inc" Name="inc">
+                    <Directory Id="OPTDIR.fsext.inc.winfsp" Name="winfsp">
+                        <Component Id="C.fsext.h">
+                            <File Name="fsext.h" KeyPath="yes" />
+                        </Component>
+                    </Directory>
+                </Directory>
+                <Directory Id="OPTDIR.fsext.lib" Name="lib">
+                    <Component Id="C.fsext.winfsp_x64.lib">
+                        <File Id="FILE.fsext.winfsp_x64.lib" Name="winfsp-x64.lib" KeyPath="yes" />
+                    </Component>
+                    <Component Id="C.fsext.winfsp_x86.lib">
+                        <File Id="FILE.fsext.winfsp_x86.lib" Name="winfsp-x86.lib" KeyPath="yes" />
+                    </Component>
+                </Directory>
+            </Directory>
         </DirectoryRef>
         <DirectoryRef Id="SMPDIR" FileSource="..\..\..\tst">
             <Directory Id="SMPDIR.memfs" Name="memfs">
@@ -382,6 +399,29 @@
                     <File Name="memfs-main.c" KeyPath="yes" />
                 </Component>
             </Directory>
+            <Directory Id="SMPDIR.memfs_fuse3" Name="memfs-fuse3">
+                <Component Id="C.memfs_fuse3.cpp">
+                    <File Name="memfs-fuse3.cpp" KeyPath="yes" />
+                </Component>
+                <Component Id="C.memfs_fuse3.compat.h">
+                    <File Id="F.memfs_fuse3.compat.h" Name="compat.h" KeyPath="yes" />
+                </Component>
+                <Component Id="C.memfs_fuse3.sln">
+                    <File Name="memfs-fuse3.sln" KeyPath="yes" />
+                </Component>
+                <Component Id="C.memfs_fuse3.vcxproj">
+                    <File Name="memfs-fuse3.vcxproj" KeyPath="yes" />
+                </Component>
+                <Component Id="C.memfs_fuse3.vcxproj.filters">
+                    <File Name="memfs-fuse3.vcxproj.filters" KeyPath="yes" />
+                </Component>
+                <Component Id="C.memfs_fuse3.Makefile">
+                    <File Id="F.memfs_fuse3.Makefile" Name="Makefile" KeyPath="yes" />
+                </Component>
+                <Component Id="C.memfs_fuse3.README.md">
+                    <File Id="F.memfsx_fuse3.README.md" Name="README.md" KeyPath="yes" />
+                </Component>
+            </Directory>
             <Directory Id="SMPDIR.memfs_dotnet" Name="memfs-dotnet">
                 <Component Id="C.memfs_dotnet.Program.cs">
                     <File Id="FILE.memfs_dotnet.Program.cs" Name="Program.cs" KeyPath="yes" />
@@ -391,6 +431,12 @@
                 <Component Id="C.airfs.cpp">
                     <File Name="airfs.cpp" KeyPath="yes" />
                 </Component>
+                <Component Id="C.persistence.cpp">
+                    <File Name="persistence.cpp" KeyPath="yes" />
+                </Component>
+                <Component Id="C.common.h">
+                    <File Name="common.h" KeyPath="yes" />
+                </Component>
                 <Component Id="C.airfs.sln">
                     <File Name="airfs.sln" KeyPath="yes" />
                 </Component>
@@ -580,13 +626,27 @@
             <ComponentRef Id="C.fuse.install.sh" />
             <ComponentRef Id="C.fuse.uninstall.sh" />
         </ComponentGroup>
+        <ComponentGroup Id="C.WinFsp.opt.fsext">
+            <ComponentRef Id="C.fsext.h" />
+            <ComponentRef Id="C.fsext.winfsp_x64.lib" />
+            <ComponentRef Id="C.fsext.winfsp_x86.lib" />
+        </ComponentGroup>
         <ComponentGroup Id="C.WinFsp.smp">
             <ComponentRef Id="C.memfs_x64.exe" />
             <ComponentRef Id="C.memfs_x86.exe" />
             <ComponentRef Id="C.memfs.h" />
             <ComponentRef Id="C.memfs.cpp" />
             <ComponentRef Id="C.memfs_main.c" />
+            <ComponentRef Id="C.memfs_fuse3.cpp" />
+            <ComponentRef Id="C.memfs_fuse3.compat.h" />
+            <ComponentRef Id="C.memfs_fuse3.sln" />
+            <ComponentRef Id="C.memfs_fuse3.vcxproj" />
+            <ComponentRef Id="C.memfs_fuse3.vcxproj.filters" />
+            <ComponentRef Id="C.memfs_fuse3.Makefile" />
+            <ComponentRef Id="C.memfs_fuse3.README.md" />
             <ComponentRef Id="C.airfs.cpp" />
+            <ComponentRef Id="C.persistence.cpp" />
+            <ComponentRef Id="C.common.h" />
             <ComponentRef Id="C.airfs.sln" />
             <ComponentRef Id="C.airfs.vcxproj" />
             <ComponentRef Id="C.airfs.vcxproj.filters" />
@@ -694,6 +754,16 @@
                 <ComponentGroupRef Id="C.WinFsp.smp.net" />
                 <ComponentGroupRef Id="C.WinFsp.sym" />
             </Feature>
+            <Feature
+                Id="F.KernelDeveloper"
+                Level="1000"
+                Title="Kernel Developer"
+                Description="Additional files needed for in-kernel development."
+                AllowAdvertise="no"
+                InstallDefault="local"
+                Absent="allow">
+                <ComponentGroupRef Id="C.WinFsp.opt.fsext" />
+            </Feature>
             <Feature
                 Id="F.Cygfuse"
                 Level="1000"
@@ -750,4 +820,4 @@
             </ScheduleReboot>
         </InstallExecuteSequence>
     </Product>
-</Wix>
+</Wix>

build/VStudio/testing/fsbench.vcxproj

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\version.properties" />
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -22,32 +23,32 @@
     <ProjectGuid>{C4E1E9E5-0959-488E-8C6A-C327CC81BEFB}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>fsbench</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -106,7 +107,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -122,7 +122,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -142,7 +141,6 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -162,7 +160,6 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>

build/VStudio/testing/fscrash.vcxproj

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\version.properties" />
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -22,32 +23,32 @@
     <ProjectGuid>{10757011-749D-4954-873B-AE38D8145472}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>fscrash</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -106,7 +107,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -122,7 +122,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -142,7 +141,6 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -162,7 +160,6 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>

build/VStudio/testing/memfs.vcxproj

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\version.properties" />
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -22,33 +23,33 @@
     <ProjectGuid>{AA7190E8-877F-4827-8CDD-E0D85F83C8C1}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>memfs</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
     <ProjectName>memfs</ProjectName>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -100,14 +101,13 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>MEMFS_STANDALONE;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>..\..\..\src;..\..\..\inc</AdditionalIncludeDirectories>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
     </Link>
   </ItemDefinitionGroup>
@@ -117,14 +117,13 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>MEMFS_STANDALONE;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>..\..\..\src;..\..\..\inc</AdditionalIncludeDirectories>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
     </Link>
   </ItemDefinitionGroup>
@@ -136,17 +135,17 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>MEMFS_STANDALONE;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>..\..\..\src;..\..\..\inc</AdditionalIncludeDirectories>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -157,17 +156,17 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>MEMFS_STANDALONE;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>..\..\..\src;..\..\..\inc</AdditionalIncludeDirectories>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>

build/VStudio/testing/winfsp-tests.vcxproj

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\version.properties" />
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -22,32 +23,32 @@
     <ProjectGuid>{262DF8CC-E7A8-4460-A22C-683CBA322C32}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>winfsptests</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -106,7 +107,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalDependencies>ntdll.lib;netapi32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
@@ -123,7 +123,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalDependencies>ntdll.lib;netapi32.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
@@ -142,7 +141,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <AdditionalDependencies>ntdll.lib;netapi32.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -163,7 +161,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <AdditionalDependencies>ntdll.lib;netapi32.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -185,6 +182,7 @@
     <ClCompile Include="..\..\..\tst\winfsp-tests\devctl-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\dirbuf-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\dirctl-test.c" />
+    <ClCompile Include="..\..\..\tst\winfsp-tests\ea-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\eventlog-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\exec-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\flush-test.c" />
@@ -193,6 +191,7 @@
     <ClCompile Include="..\..\..\tst\winfsp-tests\hooks.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\info-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\launch-test.c" />
+    <ClCompile Include="..\..\..\tst\winfsp-tests\launcher-ptrans-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\lock-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\memfs-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\mount-test.c" />
@@ -205,8 +204,11 @@
     <ClCompile Include="..\..\..\tst\winfsp-tests\security-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\stream-tests.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\timeout-test.c" />
+    <ClCompile Include="..\..\..\tst\winfsp-tests\uuid5-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\version-test.c" />
+    <ClCompile Include="..\..\..\tst\winfsp-tests\volpath-test.c" />
     <ClCompile Include="..\..\..\tst\winfsp-tests\winfsp-tests.c" />
+    <ClCompile Include="..\..\..\tst\winfsp-tests\wsl-test.c" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\..\ext\tlib\testsuite.h" />

build/VStudio/testing/winfsp-tests.vcxproj.filters

@@ -94,6 +94,21 @@
     <ClCompile Include="..\..\..\tst\winfsp-tests\fuse-test.c">
       <Filter>Source</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\tst\winfsp-tests\ea-test.c">
+      <Filter>Source</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\tst\winfsp-tests\wsl-test.c">
+      <Filter>Source</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\tst\winfsp-tests\launcher-ptrans-test.c">
+      <Filter>Source</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\tst\winfsp-tests\volpath-test.c">
+      <Filter>Source</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\tst\winfsp-tests\uuid5-test.c">
+      <Filter>Source</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\..\ext\tlib\testsuite.h">

build/VStudio/tools/fsptool.vcxproj

@@ -23,32 +23,32 @@
     <ProjectGuid>{1E997BEC-1642-4A5C-B252-852DA094E11E}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>fsptool</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -108,7 +108,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
     </Link>
@@ -127,7 +126,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
     </Link>
@@ -149,9 +147,9 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -171,9 +169,9 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -187,6 +185,9 @@
   <ItemGroup>
     <ResourceCompile Include="..\..\..\src\fsptool\fsptool-version.rc" />
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\src\shared\um\minimal.h" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

build/VStudio/tools/fsptool.vcxproj.filters

@@ -5,9 +5,11 @@
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
       <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
     </Filter>
-    <Filter Include="Include">
-      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
-      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    <Filter Include="Source\shared">
+      <UniqueIdentifier>{bd82112e-6494-4345-b35b-25eae56d5127}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source\shared\um">
+      <UniqueIdentifier>{dd21736e-dbea-4f24-8178-1903412e01f2}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
   <ItemGroup>
@@ -20,4 +22,9 @@
       <Filter>Source</Filter>
     </ResourceCompile>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\src\shared\um\minimal.h">
+      <Filter>Source\shared\um</Filter>
+    </ClInclude>
+  </ItemGroup>
 </Project>

build/VStudio/tools/launchctl.vcxproj

@@ -23,32 +23,32 @@
     <ProjectGuid>{264A5D09-126F-4760-A3F1-4B3B95C925AA}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>launchctl</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -110,7 +110,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
     </Link>
@@ -131,7 +130,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
     </Link>
@@ -155,9 +153,9 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -179,14 +177,11 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
-  <ItemGroup>
-    <ClInclude Include="..\..\..\src\shared\minimal.h" />
-  </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\src\launcher\launchctl.c" />
   </ItemGroup>
@@ -203,6 +198,9 @@
       <Project>{4a7c0b21-9e10-4c81-92de-1493efcf24eb}</Project>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\src\shared\um\minimal.h" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

build/VStudio/tools/launchctl.vcxproj.filters

@@ -5,18 +5,13 @@
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
       <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
     </Filter>
-    <Filter Include="Include">
-      <UniqueIdentifier>{e650819b-355e-455c-81c9-10dc7debe109}</UniqueIdentifier>
+    <Filter Include="Source\shared">
+      <UniqueIdentifier>{9f7e57a6-7696-4de2-a9eb-cba60e24d02a}</UniqueIdentifier>
     </Filter>
-    <Filter Include="Include\shared">
-      <UniqueIdentifier>{744edf89-567a-40b7-b6f2-ee2bc7b9f0d9}</UniqueIdentifier>
+    <Filter Include="Source\shared\um">
+      <UniqueIdentifier>{89fa307f-09d4-4373-a07f-49f23c698474}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
-  <ItemGroup>
-    <ClInclude Include="..\..\..\src\shared\minimal.h">
-      <Filter>Include\shared</Filter>
-    </ClInclude>
-  </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\src\launcher\launchctl.c">
       <Filter>Source</Filter>
@@ -27,4 +22,9 @@
       <Filter>Source</Filter>
     </ResourceCompile>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\src\shared\um\minimal.h">
+      <Filter>Source\shared\um</Filter>
+    </ClInclude>
+  </ItemGroup>
 </Project>

build/VStudio/tools/launcher.vcxproj

@@ -23,32 +23,32 @@
     <ProjectGuid>{6CDF9411-B852-4EAC-822D-8F930675F17B}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>launcher</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -110,7 +110,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <AdditionalDependencies>%(AdditionalDependencies);rpcrt4.lib;userenv.lib</AdditionalDependencies>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
@@ -132,7 +131,6 @@
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <AdditionalDependencies>%(AdditionalDependencies);rpcrt4.lib;userenv.lib</AdditionalDependencies>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
@@ -157,10 +155,10 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <AdditionalDependencies>%(AdditionalDependencies);rpcrt4.lib;userenv.lib</AdditionalDependencies>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -182,23 +180,21 @@
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <IgnoreAllDefaultLibraries>true</IgnoreAllDefaultLibraries>
       <AdditionalDependencies>%(AdditionalDependencies);rpcrt4.lib;userenv.lib</AdditionalDependencies>
       <StripPrivateSymbols>$(OutDir)$(TargetName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\src\launcher\launcher.c" />
+    <ClCompile Include="..\..\..\src\launcher\ptrans.c" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\winfsp_dll.vcxproj">
       <Project>{4a7c0b21-9e10-4c81-92de-1493efcf24eb}</Project>
     </ProjectReference>
   </ItemGroup>
-  <ItemGroup>
-    <ClInclude Include="..\..\..\src\shared\minimal.h" />
-  </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="..\..\..\src\launcher\launcher-version.rc">
       <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -207,6 +203,9 @@
       <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ResourceCompile>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\src\shared\um\minimal.h" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

build/VStudio/tools/launcher.vcxproj.filters

@@ -5,26 +5,29 @@
       <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
       <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
     </Filter>
-    <Filter Include="Include">
-      <UniqueIdentifier>{11e7c0f2-7782-43ee-84fa-9e56efbe39de}</UniqueIdentifier>
+    <Filter Include="Source\shared">
+      <UniqueIdentifier>{ebc5d08c-dcc6-4889-a482-84cefda188cd}</UniqueIdentifier>
     </Filter>
-    <Filter Include="Include\shared">
-      <UniqueIdentifier>{d83ea433-d9f7-494c-90b9-3a8997483cd9}</UniqueIdentifier>
+    <Filter Include="Source\shared\um">
+      <UniqueIdentifier>{574d211e-3e2c-4551-bc78-4786f33c4093}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\src\launcher\launcher.c">
       <Filter>Source</Filter>
     </ClCompile>
-  </ItemGroup>
-  <ItemGroup>
-    <ClInclude Include="..\..\..\src\shared\minimal.h">
-      <Filter>Include\shared</Filter>
-    </ClInclude>
+    <ClCompile Include="..\..\..\src\launcher\ptrans.c">
+      <Filter>Source</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="..\..\..\src\launcher\launcher-version.rc">
       <Filter>Source</Filter>
     </ResourceCompile>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\src\shared\um\minimal.h">
+      <Filter>Source\shared\um</Filter>
+    </ClInclude>
+  </ItemGroup>
 </Project>

build/VStudio/version.properties

@@ -13,12 +13,12 @@
 
         <MyProductName>WinFsp</MyProductName>
         <MyDescription>Windows File System Proxy</MyDescription>
-        <MyCompanyName>Navimatics Corporation</MyCompanyName>
+        <MyCompanyName>Navimatics LLC</MyCompanyName>
         <MyCopyright>2015-$([System.DateTime]::Now.ToString(`yyyy`)) Bill Zissimopoulos</MyCopyright>
 
-        <MyCanonicalVersion>1.4</MyCanonicalVersion>
+        <MyCanonicalVersion>1.7</MyCanonicalVersion>
 
-        <MyProductVersion>2019.2</MyProductVersion>
+        <MyProductVersion>2020.1</MyProductVersion>
         <MyProductStage>Gold</MyProductStage>
 
         <MyVersion>$(MyCanonicalVersion).$(MyBuildNumber)</MyVersion>
@@ -37,4 +37,22 @@
             <PreprocessorDefinitions>MyProductName=$(MyProductName);MyDescription=$(MyDescription);MyCompanyName=$(MyCompanyName);MyCopyright=$(MyCopyright);MyProductVersion=$(MyProductVersion);MyProductStage=$(MyProductStage);MyVersion=$(MyVersion);MyVersionWithCommas=$(MyVersionWithCommas);MyFullVersion=$(MyFullVersion)</PreprocessorDefinitions>
         </ResourceCompile>
     </ItemDefinitionGroup>
+    <ItemDefinitionGroup Condition="'$(IsKernelModeToolset)'=='true'">
+        <ClCompile>
+            <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+        </ClCompile>
+    </ItemDefinitionGroup>
+    <ItemDefinitionGroup Condition="'$(DefaultPlatformToolset)'=='v140'">
+        <Link>
+            <GenerateDebugInformation>true</GenerateDebugInformation>
+        </Link>
+    </ItemDefinitionGroup>
+    <ItemDefinitionGroup Condition="'$(DefaultPlatformToolset)'!='v140'">
+        <Link>
+            <GenerateDebugInformation>DebugFull</GenerateDebugInformation>
+        </Link>
+    </ItemDefinitionGroup>
+    <PropertyGroup>
+        <SpectreMitigation>false</SpectreMitigation>
+    </PropertyGroup>
 </Project>

build/VStudio/winfsp.sln

@@ -60,232 +60,168 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fsptool", "tools\fsptool.vc
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
 		Debug|x64 = Debug|x64
 		Debug|x86 = Debug|x86
-		Installer.Debug|Any CPU = Installer.Debug|Any CPU
 		Installer.Debug|x64 = Installer.Debug|x64
 		Installer.Debug|x86 = Installer.Debug|x86
-		Installer.Release|Any CPU = Installer.Release|Any CPU
 		Installer.Release|x64 = Installer.Release|x64
 		Installer.Release|x86 = Installer.Release|x86
-		Release|Any CPU = Release|Any CPU
 		Release|x64 = Release|x64
 		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Debug|Any CPU.ActiveCfg = Debug|Win32
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Debug|x64.ActiveCfg = Debug|x64
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Debug|x64.Build.0 = Debug|x64
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Debug|x86.ActiveCfg = Debug|Win32
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Debug|x86.Build.0 = Debug|Win32
-		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Installer.Debug|Any CPU.ActiveCfg = Release|Win32
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Installer.Debug|x64.ActiveCfg = Debug|x64
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Installer.Debug|x86.ActiveCfg = Debug|Win32
-		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Installer.Release|Any CPU.ActiveCfg = Release|Win32
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Installer.Release|x64.ActiveCfg = Release|x64
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Installer.Release|x86.ActiveCfg = Release|Win32
-		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Release|Any CPU.ActiveCfg = Release|Win32
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Release|x64.ActiveCfg = Release|x64
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Release|x64.Build.0 = Release|x64
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Release|x86.ActiveCfg = Release|Win32
 		{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}.Release|x86.Build.0 = Release|Win32
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 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Debug|x64.ActiveCfg = Debug|x64
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Debug|x64.Build.0 = Debug|x64
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Debug|x86.ActiveCfg = Debug|Win32
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Debug|x86.Build.0 = Debug|Win32
-		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Installer.Debug|Any CPU.ActiveCfg = Release|x64
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Installer.Debug|x64.ActiveCfg = Debug|x64
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Installer.Debug|x86.ActiveCfg = Debug|Win32
-		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Installer.Release|Any CPU.ActiveCfg = Release|x64
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Installer.Release|x64.ActiveCfg = Release|x64
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Installer.Release|x86.ActiveCfg = Release|Win32
-		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Release|Any CPU.ActiveCfg = Release|Win32
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Release|x64.ActiveCfg = Release|x64
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Release|x64.Build.0 = Release|x64
 		{1E997BEC-1642-4A5C-B252-852DA094E11E}.Release|x86.ActiveCfg = Release|Win32

build/VStudio/winfsp_dll.vcxproj

@@ -35,7 +35,9 @@
     <ClInclude Include="..\..\src\dll\fuse3\library.h" />
     <ClInclude Include="..\..\src\dll\fuse\library.h" />
     <ClInclude Include="..\..\src\dll\library.h" />
-    <ClInclude Include="..\..\src\shared\minimal.h" />
+    <ClInclude Include="..\..\src\shared\ku\config.h" />
+    <ClInclude Include="..\..\src\shared\ku\library.h" />
+    <ClInclude Include="..\..\src\shared\um\minimal.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\src\dll\dirbuf.c" />
@@ -50,8 +52,8 @@
     <ClCompile Include="..\..\src\dll\fuse\fuse_main.c" />
     <ClCompile Include="..\..\src\dll\fuse\fuse_opt.c" />
     <ClCompile Include="..\..\src\dll\launch.c" />
+    <ClCompile Include="..\..\src\dll\mount.c" />
     <ClCompile Include="..\..\src\dll\np.c" />
-    <ClCompile Include="..\..\src\dll\posix.c" />
     <ClCompile Include="..\..\src\dll\security.c" />
     <ClCompile Include="..\..\src\dll\debug.c" />
     <ClCompile Include="..\..\src\dll\fsctl.c" />
@@ -63,6 +65,7 @@
     <ClCompile Include="..\..\src\dll\service.c" />
     <ClCompile Include="..\..\src\dll\util.c" />
     <ClCompile Include="..\..\src\dll\wksid.c" />
+    <ClCompile Include="..\..\src\shared\ku\posix.c" />
   </ItemGroup>
   <ItemGroup>
     <CustomBuild Include="..\..\src\dll\fuse\fuse.pc.in">
@@ -126,33 +129,33 @@ copy /b $(OutDir)fuse3-$(PlatformTarget).pc + %(FullPath) $(OutDir)fuse3-$(Platf
     <ProjectGuid>{4A7C0B21-9E10-4C81-92DE-1493EFCF24EB}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>winfspdll</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
     <ProjectName>winfsp.dll</ProjectName>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -216,7 +219,6 @@ copy /b $(OutDir)fuse3-$(PlatformTarget).pc + %(FullPath) $(OutDir)fuse3-$(Platf
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <ProgramDatabaseFile>$(OutDir)$(TargetFileName).pdb</ProgramDatabaseFile>
       <GenerateMapFile>true</GenerateMapFile>
       <MapFileName>$(OutDir)$(TargetFileName).map</MapFileName>
@@ -244,7 +246,6 @@ copy /b $(OutDir)fuse3-$(PlatformTarget).pc + %(FullPath) $(OutDir)fuse3-$(Platf
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <ProgramDatabaseFile>$(OutDir)$(TargetFileName).pdb</ProgramDatabaseFile>
       <GenerateMapFile>true</GenerateMapFile>
       <MapFileName>$(OutDir)$(TargetFileName).map</MapFileName>
@@ -273,7 +274,6 @@ copy /b $(OutDir)fuse3-$(PlatformTarget).pc + %(FullPath) $(OutDir)fuse3-$(Platf
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <ProgramDatabaseFile>$(OutDir)$(TargetFileName).pdb</ProgramDatabaseFile>
@@ -283,6 +283,7 @@ copy /b $(OutDir)fuse3-$(PlatformTarget).pc + %(FullPath) $(OutDir)fuse3-$(Platf
       <ModuleDefinitionFile>..\..\src\dll\library.def</ModuleDefinitionFile>
       <AdditionalDependencies>%(AdditionalDependencies);rpcrt4.lib;credui.lib;secur32.lib;version.lib</AdditionalDependencies>
       <StripPrivateSymbols>$(OutDir)$(TargetFileName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetFileName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -304,7 +305,6 @@ copy /b $(OutDir)fuse3-$(PlatformTarget).pc + %(FullPath) $(OutDir)fuse3-$(Platf
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <ProgramDatabaseFile>$(OutDir)$(TargetFileName).pdb</ProgramDatabaseFile>
@@ -314,6 +314,7 @@ copy /b $(OutDir)fuse3-$(PlatformTarget).pc + %(FullPath) $(OutDir)fuse3-$(Platf
       <ModuleDefinitionFile>..\..\src\dll\library.def</ModuleDefinitionFile>
       <AdditionalDependencies>%(AdditionalDependencies);rpcrt4.lib;credui.lib;secur32.lib;version.lib</AdditionalDependencies>
       <StripPrivateSymbols>$(OutDir)$(TargetFileName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetFileName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

build/VStudio/winfsp_dll.vcxproj.filters

@@ -12,9 +12,6 @@
     <Filter Include="Include\winfsp">
       <UniqueIdentifier>{1d6501f4-cebd-4a00-a774-deb782b59fb5}</UniqueIdentifier>
     </Filter>
-    <Filter Include="Include\shared">
-      <UniqueIdentifier>{c7b83307-0aa0-4593-b2d4-26ff2f1edfc6}</UniqueIdentifier>
-    </Filter>
     <Filter Include="Include\fuse">
       <UniqueIdentifier>{0e7ab1b1-bfca-4439-accb-45a909be9cad}</UniqueIdentifier>
     </Filter>
@@ -27,6 +24,15 @@
     <Filter Include="Source\fuse3">
       <UniqueIdentifier>{96091a7b-3923-4a74-9491-3ee230c688f9}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Source\shared">
+      <UniqueIdentifier>{a099cca5-e40c-4f99-baff-b5399dac5406}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source\shared\um">
+      <UniqueIdentifier>{c2e11b62-74a0-41af-9f5b-0846fe81563c}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source\shared\ku">
+      <UniqueIdentifier>{7963f853-656a-4fd7-b8df-e586c3fe3dab}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\inc\winfsp\fsctl.h">
@@ -38,9 +44,6 @@
     <ClInclude Include="..\..\src\dll\library.h">
       <Filter>Source</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\src\shared\minimal.h">
-      <Filter>Include\shared</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\inc\fuse\fuse.h">
       <Filter>Include\fuse</Filter>
     </ClInclude>
@@ -77,6 +80,15 @@
     <ClInclude Include="..\..\src\dll\fuse3\library.h">
       <Filter>Source\fuse3</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\src\shared\um\minimal.h">
+      <Filter>Source\shared\um</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\shared\ku\library.h">
+      <Filter>Source\shared\ku</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\shared\ku\config.h">
+      <Filter>Source\shared\ku</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\src\dll\library.c">
@@ -124,9 +136,6 @@
     <ClCompile Include="..\..\src\dll\fuse\fuse_main.c">
       <Filter>Source\fuse</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\dll\posix.c">
-      <Filter>Source</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\src\dll\fuse\fuse_intf.c">
       <Filter>Source\fuse</Filter>
     </ClCompile>
@@ -154,6 +163,12 @@
     <ClCompile Include="..\..\src\dll\fuse3\fuse3_compat.c">
       <Filter>Source\fuse3</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\dll\mount.c">
+      <Filter>Source</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\shared\ku\posix.c">
+      <Filter>Source\shared\ku</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\src\dll\library.def">

build/VStudio/winfsp_sys.vcxproj

@@ -101,11 +101,11 @@
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
-      <AdditionalIncludeDirectories>..\..\src;..\..\inc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\src;..\..\opt\fsext\inc;..\..\inc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions> _X86_=1;i386=1;STD_CALL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>wdmsec.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>cng.lib;wdmsec.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <GenerateMapFile>true</GenerateMapFile>
       <ProgramDatabaseFile>$(OutDir)$(TargetFileName).pdb</ProgramDatabaseFile>
       <MapFileName>$(OutDir)$(TargetFileName).map</MapFileName>
@@ -114,24 +114,25 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <AdditionalIncludeDirectories>..\..\src;..\..\inc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\src;..\..\opt\fsext\inc;..\..\inc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions> _X86_=1;i386=1;STD_CALL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>wdmsec.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>cng.lib;wdmsec.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <GenerateMapFile>true</GenerateMapFile>
       <ProgramDatabaseFile>$(OutDir)$(TargetFileName).pdb</ProgramDatabaseFile>
       <MapFileName>$(OutDir)$(TargetFileName).map</MapFileName>
       <StripPrivateSymbols>$(OutDir)$(TargetFileName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetFileName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
-      <AdditionalIncludeDirectories>..\..\src;..\..\inc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\src;..\..\opt\fsext\inc;..\..\inc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions> _WIN64;_AMD64_;AMD64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>wdmsec.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>cng.lib;wdmsec.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <GenerateMapFile>true</GenerateMapFile>
       <ProgramDatabaseFile>$(OutDir)$(TargetFileName).pdb</ProgramDatabaseFile>
       <MapFileName>$(OutDir)$(TargetFileName).map</MapFileName>
@@ -140,21 +141,24 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <AdditionalIncludeDirectories>..\..\src;..\..\inc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\src;..\..\opt\fsext\inc;..\..\inc;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions> _WIN64;_AMD64_;AMD64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>wdmsec.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>cng.lib;wdmsec.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <GenerateMapFile>true</GenerateMapFile>
       <ProgramDatabaseFile>$(OutDir)$(TargetFileName).pdb</ProgramDatabaseFile>
       <MapFileName>$(OutDir)$(TargetFileName).map</MapFileName>
       <StripPrivateSymbols>$(OutDir)$(TargetFileName).public.pdb</StripPrivateSymbols>
+      <AdditionalOptions>/PDBALTPATH:$(TargetFileName).pdb %(AdditionalOptions)</AdditionalOptions>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
     <FilesToPackage Include="$(TargetPath)" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\..\src\shared\ku\posix.c" />
+    <ClCompile Include="..\..\src\shared\ku\uuid5.c" />
     <ClCompile Include="..\..\src\sys\cleanup.c" />
     <ClCompile Include="..\..\src\sys\close.c" />
     <ClCompile Include="..\..\src\sys\create.c" />
@@ -169,10 +173,12 @@
     <ClCompile Include="..\..\src\sys\fileinfo.c" />
     <ClCompile Include="..\..\src\sys\flush.c" />
     <ClCompile Include="..\..\src\sys\fsctl.c" />
+    <ClCompile Include="..\..\src\sys\fsext.c" />
     <ClCompile Include="..\..\src\sys\iop.c" />
     <ClCompile Include="..\..\src\sys\ioq.c" />
     <ClCompile Include="..\..\src\sys\lockctl.c" />
     <ClCompile Include="..\..\src\sys\meta.c" />
+    <ClCompile Include="..\..\src\sys\mountdev.c" />
     <ClCompile Include="..\..\src\sys\mup.c" />
     <ClCompile Include="..\..\src\sys\name.c" />
     <ClCompile Include="..\..\src\sys\psbuffer.c" />
@@ -188,6 +194,9 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\inc\winfsp\fsctl.h" />
+    <ClInclude Include="..\..\opt\fsext\inc\winfsp\fsext.h" />
+    <ClInclude Include="..\..\src\shared\ku\config.h" />
+    <ClInclude Include="..\..\src\shared\ku\library.h" />
     <ClInclude Include="..\..\src\sys\driver.h" />
   </ItemGroup>
   <ItemGroup>
@@ -212,7 +221,7 @@ for /f "delims=" %%l in (%(FullPath)) do (
     echo !line! &gt;&gt;$(OutDir)driver-$(PlatformTarget).inf
 )
 
-stampinf -v $(MyVersion) -f $(OutDir)driver-$(PlatformTarget).inf</Command>
+stampinf -d * -v $(MyVersion) -f $(OutDir)driver-$(PlatformTarget).inf</Command>
       <LinkObjects Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">false</LinkObjects>
       <Command Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">set DriverFile=$(TargetFileName)
 set Provider="$(MyCompanyName)"
@@ -225,7 +234,7 @@ for /f "delims=" %%l in (%(FullPath)) do (
     echo !line! &gt;&gt;$(OutDir)driver-$(PlatformTarget).inf
 )
 
-stampinf -v $(MyVersion) -f $(OutDir)driver-$(PlatformTarget).inf</Command>
+stampinf -d * -v $(MyVersion) -f $(OutDir)driver-$(PlatformTarget).inf</Command>
       <LinkObjects Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkObjects>
       <Command Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">set DriverFile=$(TargetFileName)
 set Provider="$(MyCompanyName)"
@@ -238,7 +247,7 @@ for /f "delims=" %%l in (%(FullPath)) do (
     echo !line! &gt;&gt;$(OutDir)driver-$(PlatformTarget).inf
 )
 
-stampinf -v $(MyVersion) -f $(OutDir)driver-$(PlatformTarget).inf</Command>
+stampinf -d * -v $(MyVersion) -f $(OutDir)driver-$(PlatformTarget).inf</Command>
       <LinkObjects Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">false</LinkObjects>
       <Command Condition="'$(Configuration)|$(Platform)'=='Release|x64'">set DriverFile=$(TargetFileName)
 set Provider="$(MyCompanyName)"
@@ -251,7 +260,7 @@ for /f "delims=" %%l in (%(FullPath)) do (
     echo !line! &gt;&gt;$(OutDir)driver-$(PlatformTarget).inf
 )
 
-stampinf -v $(MyVersion) -f $(OutDir)driver-$(PlatformTarget).inf</Command>
+stampinf -d * -v $(MyVersion) -f $(OutDir)driver-$(PlatformTarget).inf</Command>
       <LinkObjects Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</LinkObjects>
       <Message Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Writing driver-$(PlatformTarget).inf</Message>
       <Outputs Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(OutDir)driver-$(PlatformTarget).inf</Outputs>

build/VStudio/winfsp_sys.vcxproj.filters

@@ -12,6 +12,12 @@
     <Filter Include="Include\winfsp">
       <UniqueIdentifier>{904f0df1-2fb8-4f84-aa46-fa929488c39a}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Source\shared">
+      <UniqueIdentifier>{c4db9aa7-9474-4f0b-b38b-343a8a1e5686}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source\shared\ku">
+      <UniqueIdentifier>{df147bf8-bbdf-4de7-95ce-1e281925725a}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\src\sys\driver.c">
@@ -104,6 +110,18 @@
     <ClCompile Include="..\..\src\sys\mup.c">
       <Filter>Source</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\sys\fsext.c">
+      <Filter>Source</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\sys\mountdev.c">
+      <Filter>Source</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\shared\ku\posix.c">
+      <Filter>Source\shared\ku</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\shared\ku\uuid5.c">
+      <Filter>Source\shared\ku</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\src\sys\driver.h">
@@ -112,6 +130,15 @@
     <ClInclude Include="..\..\inc\winfsp\fsctl.h">
       <Filter>Include\winfsp</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\opt\fsext\inc\winfsp\fsext.h">
+      <Filter>Include\winfsp</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\shared\ku\library.h">
+      <Filter>Source\shared\ku</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\src\shared\ku\config.h">
+      <Filter>Source\shared\ku</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="..\..\src\sys\version.rc">

build/choco/winfsp.nuspec

@@ -52,6 +52,6 @@ To verify installation:
         <file src="chocolateyInstall.ps1" target="tools" />
         <file src="chocolateyUninstall.ps1" target="tools" />
         <file src="chocolateyHelper.ps1" target="tools" />
-        <file src="winfsp-$version$.msi" target="tools" />
+        <file src="winfsp-$MsiVersion$.msi" target="tools" />
     </files>
 </package>

doc/Frequently-Asked-Questions.asciidoc

@@ -18,10 +18,6 @@ Disconnecting (unmapping) a network drive does not work.::
 Case-sensitive file systems do not work properly when mounted as a directory.::
 
     This is fixed as of WinFsp 2018.2 B3.
-+
-Windows and WinFsp support case-sensitive file systems. These file systems work properly when mounted as a drive. Unfortunately when a file system is mounted as a directory over NTFS, Windows expects it to be case-insensitive and will UPPERCASE many of the file names sent to the file system.
-+
-This is an unfortunate but well understood Windows limitation. Case-sensitive file systems should only be mounted as drives.
 
 
 Why is the DLL not installed in the Windows system directories?::
@@ -68,5 +64,10 @@ With this in mind here are the reasons for the current WinFsp-FUSE behavior:
 WinFsp-FUSE does not have the ability to support multiple file systems from within the same process. Why?::
 
     This is supported as of WinFsp 2018.2 B2.
+
+
+I have problems getting permissions to work properly in a WinFsp-FUSE file system. Can you help?::
+
+    The WinFsp-FUSE layer includes a built-in command line option that can help: `-o uid=-1`. This instructs the WinFsp-FUSE layer to present all file system files as if they are owned by the user that launched the file system.
 +
-The core WinFsp layer always supported multiple file systems in the same process either simultaneously or one after another. However this was not the case with WinFsp-FUSE (i.e. the FUSE layer of WinFsp) prior to version 2018.2 B2. This limitation has been rectified as of WinFsp 2018.2 B2.
+Alternatives include `-o uid=-1,gid=-1`, which presents files as owned by the user *and* group that launched the file system and `-o uid=-1,gid=11`, which presents files as owned by the user that launched the file system and the group "Authenticated Users". (The `fsptool` utility in the `bin` subdirectory of the WinFsp installation directory can be used to convert Windows accounts/SID's to UID's and vice versa.)

doc/Home.md

@@ -9,9 +9,10 @@ The documentation available here discusses various aspects of WinFsp.
 ## Programming
 
 - The [[Tutorial|WinFsp-Tutorial]] describes how to create a simple, but complete file system in C/C++.
-- The [[API Reference|WinFsp-API-winfsp.h]] describes the native WinFsp API. This external [[link|http://www.secfs.net/winfsp/apiref/]] may be easier to browse for some people.
+- The [[API Reference|WinFsp-API-winfsp.h]] describes the native WinFsp API.
 - There is also a FUSE compatibility layer for native Windows and Cygwin. See fuse.h in the source repository.
 - This [[document|Native-API-vs-FUSE]] discusses the need for both a native API and FUSE and gives some pointers on which one to choose.
+- Since release 2019.3 WinFsp supports development of file systems in kernel mode. This [[document|WinFsp-Kernel-Mode-File-Systems]] discusses how to write such file systems.
 
 ## Design
 
@@ -29,5 +30,3 @@ The documentation available here discusses various aspects of WinFsp.
 ## Compatibility
 
 - The [[Compatibility|NTFS-Compatibility]] document discusses current WinFsp compatibility with NTFS.
-
-WinFsp is available under the GPLv3 license with a special exception for Free/Libre and Open Source Software.

doc/Known-File-Systems.asciidoc

@@ -4,8 +4,11 @@ This document contains a list of known file systems and file system libraries th
 
 == File Systems
 
+- https://github.com/wesley1975/blobfs-win[blobfs-win] - The native porting of the blobfs on the windows platform, blobfs can help you mount the Azure Blob storage as the local disk driver, no matter it is a Linux system or a Windows system.
 - https://github.com/vgough/encfs[EncFS] - an Encrypted Filesystem for FUSE
+- https://github.com/lowleveldesign/fsmemfs[fsmemfs] - Memory File System written in F#
 - https://github.com/ihaveamac/fuse-3ds[fuse-3ds] - FUSE Filesystem Python scripts for Nintendo 3DS files
+- https://github.com/sganis/golddrive[golddrive] - Windows ssh network drive
 - https://github.com/FrKaram/KS2.Drive[KS2.Drive] - Mount a webDAV/AOS server as a local drive
 - https://github.com/billziss-gh/nfs-win[nfs-win] - NFS for Windows
 - https://github.com/ncw/rclone[rclone] - rsync for cloud storage
@@ -13,6 +16,8 @@ This document contains a list of known file systems and file system libraries th
 - https://github.com/billziss-gh/redditfs[redditfs] - ls -l /r/programming
 - https://github.com/netheril96/securefs[securefs] - Filesystem in userspace (FUSE) with transparent authenticated encryption
 - https://github.com/billziss-gh/sshfs-win[sshfs-win] - SSHFS for Windows
+- https://github.com/emoose/xbox-winfsp[xbox-winfsp] - Adds native support to Windows for the FATX, STFS & GDFX (aka XGD/XDVDFS) Xbox filesystems.
+- https://github.com/UtrechtUniversity/YodaDrive[YodaDrive] - Mount a Yoda drive as a local drive
 
 == File System Libraries
 
@@ -20,3 +25,5 @@ This document contains a list of known file systems and file system libraries th
 - https://github.com/DuroSoft/fuse-bindings[Nodejs: fuse-bindings] - Fully maintained FUSE bindings for Node that aims to cover the entire FUSE api
 - https://github.com/SerCeMan/jnr-fuse[Java: jnr-fuse] - FUSE implementation in Java using Java Native Runtime (JNR)
 - https://github.com/billziss-gh/fusepy[Python: fusepy] - Simple ctypes bindings for FUSE
+- https://github.com/pleiszenburg/refuse[Python: refuse] - Simple cross-plattform ctypes bindings for libfuse / FUSE for macOS / WinFsp
+- https://github.com/Scille/winfspy[Python: winfspy] - WinFSP binding for Python

doc/WinFsp-API-launch.h.asciidoc

@@ -1,263 +0,0 @@
-= winfsp/launch.h
-:author: (C) 2015-2018 Bill Zissimopoulos
-:toc: preamble
-:toc-title:
-
-WinFsp Launch API.
-
-In order to use the WinFsp Launch API a program must include <winfsp/launch.h>
-and link with the winfsp$$_$$x64.dll (or winfsp$$_$$x86.dll) library.
-
-== Launch Control
-
-=== Functions
-
-*FspLaunchCallLauncherPipe* - Call launcher pipe.
-
-[source,c]
-----
-FSP_API NTSTATUS FspLaunchCallLauncherPipe( 
-    WCHAR Command,
-    ULONG Argc,
-    PWSTR *Argv,
-    ULONG *Argl, 
-    PWSTR Buffer,
-    PULONG PSize,
-    PULONG PLauncherError);  
-----
-
-*Parameters*
-
-- _Command_ - Launcher command to send. For example, the 'L' launcher command instructs
-the launcher to list all running service instances.
-- _Argc_ - Command argument count. May be 0.
-- _Argv_ - Command argument array. May be NULL.
-- _Argl_ - Command argument length array. May be NULL. If this is NULL all command arguments
-are assumed to be NULL-terminated strings. It is also possible for specific arguments
-to be NULL-terminated; in this case pass -1 in the corresponding Argl position.
-- _Buffer_ - Buffer that receives the command response. May be NULL.
-- _PSize_ - Pointer to a ULONG. On input it contains the size of the Buffer. On output it
-contains the number of bytes transferred. May be NULL.
-- _PLauncherError_ - Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
-
-*Return Value*
-
-STATUS$$_$$SUCCESS if the command is sent successfully to the launcher, even if the launcher
-returns an error. Other status codes indicate a communication error. Launcher errors are
-reported through PLauncherError.
-
-*Discussion*
-
-This function is used to send a command to the launcher and receive a response.
-
-
-*FspLaunchGetInfo* - Get information about a service instance.
-
-[source,c]
-----
-FSP_API NTSTATUS FspLaunchGetInfo( 
-    PWSTR ClassName,
-    PWSTR InstanceName, 
-    PWSTR Buffer,
-    PULONG PSize, 
-    PULONG PLauncherError);  
-----
-
-*Parameters*
-
-- _ClassName_ - Class name of the service instance to stop.
-- _InstanceName_ - Instance name of the service instance to stop.
-- _Buffer_ - Buffer that receives the command response. May be NULL.
-- _PSize_ - Pointer to a ULONG. On input it contains the size of the Buffer. On output it
-contains the number of bytes transferred. May be NULL.
-- _PLauncherError_ - Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
-
-*Return Value*
-
-STATUS$$_$$SUCCESS if the command is sent successfully to the launcher, even if the launcher
-returns an error. Other status codes indicate a communication error. Launcher errors are
-reported through PLauncherError.
-
-*Discussion*
-
-The information is a list of NULL-terminated strings: the class name of the service instance,
-the instance name of the service instance and the full command line used to start the service
-instance.
-
-
-*FspLaunchGetNameList* - List service instances.
-
-[source,c]
-----
-FSP_API NTSTATUS FspLaunchGetNameList( 
-    PWSTR Buffer,
-    PULONG PSize, 
-    PULONG PLauncherError);  
-----
-
-*Parameters*
-
-- _Buffer_ - Buffer that receives the command response. May be NULL.
-- _PSize_ - Pointer to a ULONG. On input it contains the size of the Buffer. On output it
-contains the number of bytes transferred. May be NULL.
-- _PLauncherError_ - Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
-
-*Return Value*
-
-STATUS$$_$$SUCCESS if the command is sent successfully to the launcher, even if the launcher
-returns an error. Other status codes indicate a communication error. Launcher errors are
-reported through PLauncherError.
-
-*Discussion*
-
-The information is a list of pairs of NULL-terminated strings. Each pair contains the class
-name and instance name of a service instance. All currently running service instances are
-listed.
-
-
-*FspLaunchStart* - Start a service instance.
-
-[source,c]
-----
-FSP_API NTSTATUS FspLaunchStart( 
-    PWSTR ClassName,
-    PWSTR InstanceName,
-    ULONG Argc,
-    PWSTR *Argv, 
-    BOOLEAN HasSecret, 
-    PULONG PLauncherError);  
-----
-
-*Parameters*
-
-- _ClassName_ - Class name of the service instance to start.
-- _InstanceName_ - Instance name of the service instance to start.
-- _Argc_ - Service instance argument count. May be 0.
-- _Argv_ - Service instance argument array. May be NULL.
-- _HasSecret_ - Whether the last argument in Argv is assumed to be a secret (e.g. password) or not.
-Secrets are passed to service instances through standard input rather than the command
-line.
-- _PLauncherError_ - Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
-
-*Return Value*
-
-STATUS$$_$$SUCCESS if the command is sent successfully to the launcher, even if the launcher
-returns an error. Other status codes indicate a communication error. Launcher errors are
-reported through PLauncherError.
-
-
-*FspLaunchStop* - Stop a service instance.
-
-[source,c]
-----
-FSP_API NTSTATUS FspLaunchStop( 
-    PWSTR ClassName,
-    PWSTR InstanceName, 
-    PULONG PLauncherError);  
-----
-
-*Parameters*
-
-- _ClassName_ - Class name of the service instance to stop.
-- _InstanceName_ - Instance name of the service instance to stop.
-- _PLauncherError_ - Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
-
-*Return Value*
-
-STATUS$$_$$SUCCESS if the command is sent successfully to the launcher, even if the launcher
-returns an error. Other status codes indicate a communication error. Launcher errors are
-reported through PLauncherError.
-
-
-== Service Registry
-
-=== Functions
-
-*FspLaunchRegFreeRecord* - Free a service registry record.
-
-[source,c]
-----
-FSP_API VOID FspLaunchRegFreeRecord( 
-    FSP_LAUNCH_REG_RECORD *Record);  
-----
-
-*Parameters*
-
-- _Record_ - The service record to free.
-
-*See Also*
-
-- FspLaunchRegGetRecord
-
-
-*FspLaunchRegGetRecord* - Get a service registry record.
-
-[source,c]
-----
-FSP_API NTSTATUS FspLaunchRegGetRecord( 
-    PWSTR ClassName,
-    PWSTR Agent, 
-    FSP_LAUNCH_REG_RECORD **PRecord);  
-----
-
-*Parameters*
-
-- _ClassName_ - The service class name.
-- _Agent_ - The name of the agent that is retrieving the service record. This API matches
-the supplied Agent against the Agent in the service record and it only returns
-the record if they match. Pass NULL to match any Agent.
-- _PRecord_ - Pointer to a record pointer. Memory for the service record will be allocated
-and a pointer to it will be stored at this address. This memory must be later
-freed using FspLaunchRegFreeRecord.
-
-*Return Value*
-
-STATUS$$_$$SUCCESS or error code.
-
-*See Also*
-
-- FspLaunchRegFreeRecord
-
-
-*FspLaunchRegSetRecord* - Add/change/delete a service registry record.
-
-[source,c]
-----
-FSP_API NTSTATUS FspLaunchRegSetRecord( 
-    PWSTR ClassName, 
-    const FSP_LAUNCH_REG_RECORD *Record);  
-----
-
-*Parameters*
-
-- _ClassName_ - The service class name.
-- _Record_ - The record to set in the registry. If NULL, the registry record is deleted.
-
-*Return Value*
-
-STATUS$$_$$SUCCESS or error code.
-
-
-=== Typedefs
-
-*FSP$$_$$LAUNCH$$_$$REG$$_$$RECORD* - Service registry record.
-
-[source,c]
-----
-typedef struct _FSP_LAUNCH_REG_RECORD { 
-    PWSTR Agent; 
-    PWSTR Executable; 
-    PWSTR CommandLine; 
-    PWSTR WorkDirectory; 
-    PWSTR RunAs; 
-    PWSTR Security; 
-    PVOID Reserved0[6]; 
-    ULONG JobControl; 
-    ULONG Credentials; 
-    ULONG Reserved1[6]; 
-    UINT8 Buffer[]; 
-} FSP_LAUNCH_REG_RECORD;  
-----
-
-
-

doc/WinFsp-API-launch.h.md

@@ -0,0 +1,421 @@
+# winfsp/launch.h
+
+WinFsp Launch API.
+
+In order to use the WinFsp Launch API a program must include <winfsp/launch.h>
+and link with the winfsp\_x64.dll (or winfsp\_x86.dll) library.
+
+## LAUNCH CONTROL
+
+### Functions
+
+<details>
+<summary>
+<b>FspLaunchCallLauncherPipe</b> - Call launcher pipe.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API NTSTATUS FspLaunchCallLauncherPipe( 
+    WCHAR Command,
+    ULONG Argc,
+    PWSTR *Argv,
+    ULONG *Argl, 
+    PWSTR Buffer,
+    PULONG PSize, 
+    PULONG PLauncherError);  
+```
+
+**Parameters**
+
+- _Command_ \- Launcher command to send. For example, the 'L' launcher command instructs
+the launcher to list all running service instances.
+- _Argc_ \- Command argument count. May be 0.
+- _Argv_ \- Command argument array. May be NULL.
+- _Argl_ \- Command argument length array. May be NULL. If this is NULL all command arguments
+are assumed to be NULL-terminated strings. It is also possible for specific arguments
+to be NULL-terminated; in this case pass -1 in the corresponding Argl position.
+- _Buffer_ \- Buffer that receives the command response. May be NULL.
+- _PSize_ \- Pointer to a ULONG. On input it contains the size of the Buffer. On output it
+contains the number of bytes transferred. May be NULL.
+- _PLauncherError_ \- Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
+
+**Return Value**
+
+STATUS\_SUCCESS if the command is sent successfully to the launcher, even if the launcher
+returns an error. Other status codes indicate a communication error. Launcher errors are
+reported through PLauncherError.
+
+**Discussion**
+
+This function is used to send a command to the launcher and receive a response.
+
+
+</blockquote>
+</details>
+
+<details>
+<summary>
+<b>FspLaunchCallLauncherPipeEx</b> - Call launcher pipe.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API NTSTATUS FspLaunchCallLauncherPipeEx( 
+    WCHAR Command,
+    ULONG Argc,
+    PWSTR *Argv,
+    ULONG *Argl, 
+    PWSTR Buffer,
+    PULONG PSize, 
+    BOOLEAN AllowImpersonation, 
+    PULONG PLauncherError);  
+```
+
+**Parameters**
+
+- _Command_ \- Launcher command to send. For example, the 'L' launcher command instructs
+the launcher to list all running service instances.
+- _Argc_ \- Command argument count. May be 0.
+- _Argv_ \- Command argument array. May be NULL.
+- _Argl_ \- Command argument length array. May be NULL. If this is NULL all command arguments
+are assumed to be NULL-terminated strings. It is also possible for specific arguments
+to be NULL-terminated; in this case pass -1 in the corresponding Argl position.
+- _Buffer_ \- Buffer that receives the command response. May be NULL.
+- _PSize_ \- Pointer to a ULONG. On input it contains the size of the Buffer. On output it
+contains the number of bytes transferred. May be NULL.
+- _AllowImpersonation_ \- Allow caller to be impersonated by launcher.
+- _PLauncherError_ \- Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
+
+**Return Value**
+
+STATUS\_SUCCESS if the command is sent successfully to the launcher, even if the launcher
+returns an error. Other status codes indicate a communication error. Launcher errors are
+reported through PLauncherError.
+
+**Discussion**
+
+This function is used to send a command to the launcher and receive a response.
+
+
+</blockquote>
+</details>
+
+<details>
+<summary>
+<b>FspLaunchGetInfo</b> - Get information about a service instance.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API NTSTATUS FspLaunchGetInfo( 
+    PWSTR ClassName,
+    PWSTR InstanceName, 
+    PWSTR Buffer,
+    PULONG PSize, 
+    PULONG PLauncherError);  
+```
+
+**Parameters**
+
+- _ClassName_ \- Class name of the service instance to stop.
+- _InstanceName_ \- Instance name of the service instance to stop.
+- _Buffer_ \- Buffer that receives the command response. May be NULL.
+- _PSize_ \- Pointer to a ULONG. On input it contains the size of the Buffer. On output it
+contains the number of bytes transferred. May be NULL.
+- _PLauncherError_ \- Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
+
+**Return Value**
+
+STATUS\_SUCCESS if the command is sent successfully to the launcher, even if the launcher
+returns an error. Other status codes indicate a communication error. Launcher errors are
+reported through PLauncherError.
+
+**Discussion**
+
+The information is a list of NULL-terminated strings: the class name of the service instance,
+the instance name of the service instance and the full command line used to start the service
+instance.
+
+
+</blockquote>
+</details>
+
+<details>
+<summary>
+<b>FspLaunchGetNameList</b> - List service instances.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API NTSTATUS FspLaunchGetNameList( 
+    PWSTR Buffer,
+    PULONG PSize, 
+    PULONG PLauncherError);  
+```
+
+**Parameters**
+
+- _Buffer_ \- Buffer that receives the command response. May be NULL.
+- _PSize_ \- Pointer to a ULONG. On input it contains the size of the Buffer. On output it
+contains the number of bytes transferred. May be NULL.
+- _PLauncherError_ \- Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
+
+**Return Value**
+
+STATUS\_SUCCESS if the command is sent successfully to the launcher, even if the launcher
+returns an error. Other status codes indicate a communication error. Launcher errors are
+reported through PLauncherError.
+
+**Discussion**
+
+The information is a list of pairs of NULL-terminated strings. Each pair contains the class
+name and instance name of a service instance. All currently running service instances are
+listed.
+
+
+</blockquote>
+</details>
+
+<details>
+<summary>
+<b>FspLaunchStart</b> - Start a service instance.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API NTSTATUS FspLaunchStart( 
+    PWSTR ClassName,
+    PWSTR InstanceName,
+    ULONG Argc,
+    PWSTR *Argv, 
+    BOOLEAN HasSecret, 
+    PULONG PLauncherError);  
+```
+
+**Parameters**
+
+- _ClassName_ \- Class name of the service instance to start.
+- _InstanceName_ \- Instance name of the service instance to start.
+- _Argc_ \- Service instance argument count. May be 0.
+- _Argv_ \- Service instance argument array. May be NULL.
+- _HasSecret_ \- Whether the last argument in Argv is assumed to be a secret (e.g. password) or not.
+Secrets are passed to service instances through standard input rather than the command
+line.
+- _PLauncherError_ \- Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
+
+**Return Value**
+
+STATUS\_SUCCESS if the command is sent successfully to the launcher, even if the launcher
+returns an error. Other status codes indicate a communication error. Launcher errors are
+reported through PLauncherError.
+
+
+</blockquote>
+</details>
+
+<details>
+<summary>
+<b>FspLaunchStartEx</b> - Start a service instance.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API NTSTATUS FspLaunchStartEx( 
+    PWSTR ClassName,
+    PWSTR InstanceName,
+    ULONG Argc,
+    PWSTR *Argv, 
+    BOOLEAN HasSecret, 
+    BOOLEAN AllowImpersonation, 
+    PULONG PLauncherError);  
+```
+
+**Parameters**
+
+- _ClassName_ \- Class name of the service instance to start.
+- _InstanceName_ \- Instance name of the service instance to start.
+- _Argc_ \- Service instance argument count. May be 0.
+- _Argv_ \- Service instance argument array. May be NULL.
+- _HasSecret_ \- Whether the last argument in Argv is assumed to be a secret (e.g. password) or not.
+Secrets are passed to service instances through standard input rather than the command
+line.
+- _AllowImpersonation_ \- Allow caller to be impersonated by launcher.
+- _PLauncherError_ \- Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
+
+**Return Value**
+
+STATUS\_SUCCESS if the command is sent successfully to the launcher, even if the launcher
+returns an error. Other status codes indicate a communication error. Launcher errors are
+reported through PLauncherError.
+
+
+</blockquote>
+</details>
+
+<details>
+<summary>
+<b>FspLaunchStop</b> - Stop a service instance.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API NTSTATUS FspLaunchStop( 
+    PWSTR ClassName,
+    PWSTR InstanceName, 
+    PULONG PLauncherError);  
+```
+
+**Parameters**
+
+- _ClassName_ \- Class name of the service instance to stop.
+- _InstanceName_ \- Instance name of the service instance to stop.
+- _PLauncherError_ \- Receives the launcher error if any. This is always a Win32 error code. May not be NULL.
+
+**Return Value**
+
+STATUS\_SUCCESS if the command is sent successfully to the launcher, even if the launcher
+returns an error. Other status codes indicate a communication error. Launcher errors are
+reported through PLauncherError.
+
+
+</blockquote>
+</details>
+
+## SERVICE REGISTRY
+
+### Functions
+
+<details>
+<summary>
+<b>FspLaunchRegFreeRecord</b> - Free a service registry record.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API VOID FspLaunchRegFreeRecord( 
+    FSP_LAUNCH_REG_RECORD *Record);  
+```
+
+**Parameters**
+
+- _Record_ \- The service record to free.
+
+**See Also**
+
+- FspLaunchRegGetRecord
+
+
+</blockquote>
+</details>
+
+<details>
+<summary>
+<b>FspLaunchRegGetRecord</b> - Get a service registry record.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API NTSTATUS FspLaunchRegGetRecord( 
+    PWSTR ClassName,
+    PWSTR Agent, 
+    FSP_LAUNCH_REG_RECORD **PRecord);  
+```
+
+**Parameters**
+
+- _ClassName_ \- The service class name.
+- _Agent_ \- The name of the agent that is retrieving the service record. This API matches
+the supplied Agent against the Agent in the service record and it only returns
+the record if they match. Pass NULL to match any Agent.
+- _PRecord_ \- Pointer to a record pointer. Memory for the service record will be allocated
+and a pointer to it will be stored at this address. This memory must be later
+freed using FspLaunchRegFreeRecord.
+
+**Return Value**
+
+STATUS\_SUCCESS or error code.
+
+**See Also**
+
+- FspLaunchRegFreeRecord
+
+
+</blockquote>
+</details>
+
+<details>
+<summary>
+<b>FspLaunchRegSetRecord</b> - Add/change/delete a service registry record.
+</summary>
+<blockquote>
+<br/>
+
+```c
+FSP_API NTSTATUS FspLaunchRegSetRecord( 
+    PWSTR ClassName, 
+    const FSP_LAUNCH_REG_RECORD *Record);  
+```
+
+**Parameters**
+
+- _ClassName_ \- The service class name.
+- _Record_ \- The record to set in the registry. If NULL, the registry record is deleted.
+
+**Return Value**
+
+STATUS\_SUCCESS or error code.
+
+
+</blockquote>
+</details>
+
+### Typedefs
+
+<details>
+<summary>
+<b>FSP_LAUNCH_REG_RECORD</b> - Service registry record.
+</summary>
+<blockquote>
+<br/>
+
+```c
+typedef struct _FSP_LAUNCH_REG_RECORD { 
+    PWSTR Agent; 
+    PWSTR Executable; 
+    PWSTR CommandLine; 
+    PWSTR WorkDirectory; 
+    PWSTR RunAs; 
+    PWSTR Security; 
+    PWSTR AuthPackage; 
+    PVOID Reserved0[5]; 
+    ULONG JobControl; 
+    ULONG Credentials; 
+    ULONG AuthPackageId; 
+    ULONG Reserved1[5]; 
+    UINT8 Buffer[]; 
+} FSP_LAUNCH_REG_RECORD;  
+```
+
+
+</blockquote>
+</details>
+
+
+<br/>
+<p align="center">
+<sub>
+Copyright © 2015-2020 Bill Zissimopoulos
+<br/>
+Generated with <a href="https://github.com/billziss-gh/prettydoc">prettydoc</a>
+</sub>
+</p>

doc/WinFsp-Debugging-Setup.asciidoc

@@ -0,0 +1,81 @@
+= WinFsp Debugging Setup
+
+In this article I will describe the debugging setup used for WinFsp. Note that my debugging setup is somewhat peculiar, because all development and debugging is done on a Mac computer using two Windows virtual machines: one for development and one for debugging! However my description below should work for a one or two virtual machine setup.
+
+WinFsp is being developed on Windows 10 and debugged and tested on Windows 8 (although it should run correctly on Windows Vista and higher). You will need some virtualization software (I use VirtualBox 5), you will also need a fresh installation of Windows and to configure it properly for kernel debugging and running test signed drivers:
+
+* Create a Windows VM with a descriptive name (e.g. Win8DBG). Mine has a single CPU and just 2GB of memory.
+* Configure your VM for Host Only Networking. This will be used for WinDbg debugging and for deploying WinFsp.
+* Install Windows 8 on Win8DBG. Windows 8 is the minimum version of Windows that supports kernel network debugging.
+* I would recommend not to install your virtualization software guest additions to minimize issues with your debugging VM.
+* Configure Win8DBG for running test signed drivers:
++
+----
+bcdedit.exe -set testsigning on
+----
+* Configure Win8DBG for debugging over the network:
++
+----
+bcdedit /debug on
+bcdedit /dbgsettings net hostip:W.X.Y.Z port:NNNN key:KKKK
+----
+** Note that if you configure your VM with multiple network adapters you must also specify the correct `busparams` argument. You can find the correct `busparams` from the Windows Device Manager. For example, here are the settings on one of my VM's:
++
+----
+>bcdedit /dbgsettings
+busparams               0.8.0
+key                     1.1.1.1
+debugtype               NET
+hostip                  192.168.56.11
+port                    50000
+dhcp                    Yes
+The operation completed successfully.
+----
+* Enable DbgPrint on Win8DBG. Create the following key/value in the registry:
++
+----
+Windows Registry Editor Version 5.00
+
+[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Debug Print Filter]
+"DEFAULT"=dword:0000000f
+----
+* Create a directory on Win8DBG where you will be deploying WinFsp. I use a subdirectory of the Downloads directory:
++
+----
+C:\Users\USERNAME\Downloads\winfsp
+----
+* Make the directory available outside the VM using Windows networking. You can use this new Windows share as an easy means to deploy WinFsp.
++
+----
+copy build\VStudio\build\Debug\winfsp-x64.sys \\Win8DBG\Users\USERNAME\Downloads\winfsp
+----
+* Enable Driver Verifier for WinFsp on Win8DBG. The easiest way to do so is to run `verifier` from the command line.
+* For faster edit-compile-test cycles I strongly recommend to use your virtualization software snapshot feature. For example, in my Win8DBG VM after I set it up exactly how I wanted it, I took a snapshot while the VM was running. Now whenever I want to test WinFsp, I restart that same snapshot and within 3-4 seconds I have a new VM ready for use. Even more importantly whenever there is a hard crash on the VM (happens a lot when developing Windows drivers) I can simply close the crashed VM and restart a new one.
+* On your development machine configure WinDbg to use the Microsoft public symbol servers. From the main menu select File > Symbol File Path and enter:
++
+----
+SRV*C:\Users\USERNAME\AppData\Local\Temp\SymbolCache*http://msdl.microsoft.com/download/symbols
+----
+* You can now run WinDbg and from the main menu select File > Kernel Debug, then enter the appropriate port number and key. Alternatively you can use the following windbg command line:
++
+----
+windbg -k net:port=NNNN,key=KKKK
+----
+* Checkout the `tools/deploy.bat` and `tools/debug.bat` batch files in the source distribution to see how I deploy and debug WinFsp.
+
+== Debugging a user mode process from kernel mode WinDbg
+
+In order to debug a user mode process from a kernel mode WinDbg session, break into the debugger and issue the following commands:
+
+----
+kd> !gflag +ksl
+kd> sxe ld MODULE-NAME.exe
+----
+
+Restart the debugger and it will break within process creation. You can now set a breakpoint at your process wmain (or main, etc.):
+
+----
+kd> bp MODULE_NAME!wmain
+----
+
+Restart the debugger and it will stop at your program's entry point.

doc/WinFsp-Kernel-Mode-File-Systems.asciidoc

@@ -0,0 +1,117 @@
+= Developing File Systems in Kernel Mode
+
+Since release 2019.3 WinFsp supports development of file systems in kernel mode. Such file systems are implemented as kernel drivers that use WinFsp as the primary FSD (File System Driver) as well as the software library that they interface with to retrieve and service file system requests. This document discusses how to write such file systems.
+
+== Motivation
+
+The primary goal of WinFsp is to enable the easy creation of *user mode* file systems using an easy to use API. There are however legitimate reasons for wanting to develop a file system as a *kernel mode* driver, but the difficulty of doing so often deters people because Windows kernel file system development is notoriously difficult and has many pitfalls.
+
+Some of the reasons that a kernel mode file system may be preferrable to a user mode one:
+
+* A kernel driver may be able to achieve better performance than user mode processes.
+* A kernel driver may be able to access advanced OS features that are not easily available to user mode processes.
+* A kernel driver may be able to present an alternative interface than the one presented by WinFsp to user mode processes.
+
+Since release 2019.3 WinFsp supports development of file systems as kernel mode drivers. The primary motivation for this work was to support the https://github.com/billziss-gh/winfuse[WinFuse] project, which exposes the FUSE protocol from the Windows kernel in a way that allows FUSE file systems to interface with it, either directly or via https://github.com/libfuse/libfuse[libfuse]. The support was added in such a way that it is generic enough to be used by other kernel mode file systems.
+
+== Overview
+
+A WinFsp "volume" (file system) is typically created using the `FspFsctlCreateVolume` API. This is simply a wrapper around a `CreateFileW` call on one of the WinFsp control devices, either `WinFsp.Disk` or `WinFsp.Net`. The `CreateFileW` call returns a `HANDLE` to the newly created volume, which acts either as a "disk" or a "network" file system, depending on which control device was used to create it.
+
+User mode file systems interact with the WinFsp FSD via `DeviceIoControl/FSP_FSCTL_TRANSACT` messages on the volume `HANDLE`. (This is usually done indirectly via the WinFsp DLL, which hides this detail behind an easy to use API.)
+
+Since release 2019.3 (v1.5) WinFsp supports the following:
+
+* Registration and on-demand loading of a third party driver when a volume that is destined to be handled by the third party driver is created.
+* Forwarding of custom `DeviceIoControl` messages to a third party driver. This allows the third party driver to handle custom `FSCTL` requests directed to a WinFsp volume `HANDLE`.
+* Kernel-mode API's (called DDI's) that allow a third party driver to register itself with the FSD and interact with its I/O queues.
+
+Such drivers are called within the WinFsp sources and header/library files by the name of "Fsext Providers" (File System Extension Providers). In the text below we will usually refer to them as simply "Providers".
+
+A Provider is a kernel mode driver that uses the FSD as a frontend file system driver to interface with Windows and implement all the complex details that this entails. The Provider fetches I/O requests from the WinFsp I/O queues and may filter them, transform them into a different protocol (as is the case with WinFuse) or use them to fully implement a file system in kernel mode.
+
+== Provider Development
+
+The WinFsp installer includes a "Kernel Developer" feature. When installed this feature adds header and library files in the `opt\fsext` installation subdirectory.
+
+The primary header file used for Provider development is `<winfsp/fsext.h>` and can be found in `opt\fsext\inc`. Additionally the file `<winfsp/fsctl.h>` found in the `inc` installation subdirectory must be in the compiler's include path.
+
+Providers must also be linked with one of the import libraries that can be found in `opt\fsext\lib`. Use the `winfsp-x64.lib` import library when linking the 64-bit version of a Provider and the `winfsp-x86.lib` import library when linking the 32-bit version of a Provider.
+
+=== Provider DDI's
+
+The `<winfsp/fsext.h>` header file includes definitions for the following important DDI's:
+
+* `FspFsextProviderRegister`: This DDI is used by a Provider to register itself with the FSD. Typically the Provider prepares an `FSP_FSEXT_PROVIDER` structure and calls `FspFsextProviderRegister` in its `DriverEntry` routine. The structure's fields are as follows:
+** `Version`: Set to `sizeof(FSP_FSEXT_PROVIDER)`.
+** `DeviceTransactCode`: The `DeviceIoControl` code that should be forwarded to the Provider.
+*** The code must be defined as follows: `CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0xC00 + ProviderSpecific, METHOD_BUFFERED, FILE_ANY_ACCESS)`.
+*** Please note that this scheme allows for up to 1024 codes. If you want to define a new Provider code I will appreciate it if you email me at `<billziss at navimatics.com>` so that we can keep track of Provider codes, avoid conflicts and see when we need to extend this scheme.
+** `DeviceExtensionSize`: The size of private data that the Provider wants for itself in the `DeviceExtension` of the FSD volume's device object.
+** `DeviceInit`: Called when a new volume is created. The `DeviceObject` parameter is the volume's device object. The `VolumeParams` are the initial parameters passed to `FspFsctlCreateVolume` and can be modified by the Provider.
+** `DeviceFini`: Called when a volume is going away. This usually happens when the volume `HANDLE` is closed.
+** `DeviceExpirationRoutine`: Called once a second as part of the FSD's expiration timer. The FSD uses this timer to expire caches, long-pending IRP's, etc. A Provider can use this call for a similar purpose. The `ExpirationTime` parameter contains the current interrupt time as determined by the FSD.
+** `DeviceTransact`: Called whenever the FSD receives a `DeviceIoControl` request with the `DeviceTransactCode`. The `Irp` parameter contains the relevant `IRP_MJ_FILE_SYSTEM_CONTROL`.
+** `DeviceExtensionOffset`: Set to `0` on input. On successful return from `FspFsextProviderRegister` it will contain the offset to use for accessing the Provider's private data in the `DeviceExtension` of the FSD volume's device object. Given a `DeviceObject`, the data can be accessed as `(PVOID)((PUINT8)DeviceObject->DeviceExtension + Provider.DeviceExtensionOffset)`.
+* `FspFsextProviderTransact`: This DDI is used by a Provider to interact with the FSD I/O queues. The `DeviceObject` is the FSD volume's device object. The `FileObject` is the `FILE_OBJECT` that corresponds to the volume `HANDLE` (created by `FspFsctlCreateVolume`). The `Response` is the response to send and can be `NULL`. The `Request` is a pointer that receives a pointer to a new request from the WinFsp I/O queue and can be `NULL`; if the received pointer is not `NULL` it must be freed with `ExFreePool`.
+
+=== Provider I/O
+
+When the FSD receives a file system IRP it is often able to handle and complete it without help from an external user mode or kernel mode file system. However in most cases the IRP has to be seen and acted upon by an external file system. For this reason the FSD preprocesses the IRP and places it in an I/O queue in the form of a "request". At a later time the external file system retrieves the request, processes it and sends back a "response". The FSD uses the response to locate the original IRP, perform any necessary postprocessing and finally complete the IRP.
+
+Providers typically use the `FspFsextProviderTransact` DDI to receive requests and send back responses. Requests are of type `FSP_FSCTL_TRANSACT_REQ` and responses are of type `FSP_FSCTL_TRANSACT_RSP`. Requests have a `Kind` field which describes what kind of file system operation is being requested. The following request kinds are currently defined in `<winfsp/fsctl.h>`:
+
+```
+    FspFsctlTransactCreateKind,
+    FspFsctlTransactOverwriteKind,
+    FspFsctlTransactCleanupKind,
+    FspFsctlTransactCloseKind,
+    FspFsctlTransactReadKind,
+    FspFsctlTransactWriteKind,
+    FspFsctlTransactQueryInformationKind,
+    FspFsctlTransactSetInformationKind,
+    FspFsctlTransactQueryEaKind,
+    FspFsctlTransactSetEaKind,
+    FspFsctlTransactFlushBuffersKind,
+    FspFsctlTransactQueryVolumeInformationKind,
+    FspFsctlTransactSetVolumeInformationKind,
+    FspFsctlTransactQueryDirectoryKind,
+    FspFsctlTransactFileSystemControlKind,
+    FspFsctlTransactDeviceControlKind,
+    FspFsctlTransactShutdownKind,
+    FspFsctlTransactLockControlKind,
+    FspFsctlTransactQuerySecurityKind,
+    FspFsctlTransactSetSecurityKind,
+    FspFsctlTransactQueryStreamInformationKind,
+```
+
+When request processing is complete the Provider must prepare a response and send it to the FSD using `FspFsextProviderTransact` as mentioned above. It is particularly important that the Provider initializes the `Kind` and `Hint` fields by copying the values from the corresponding request.
+
+This document does not describe in detail how each request kind is supposed to be handled. For the full details refer to the implementation for the WinFsp DLL in the WinFsp sources: `src/dll/fsop.c`. Although this implementation is for user mode file systems, similar logic and techniques should be used for Providers.
+
+== Provider Registration
+
+Providers are loaded on demand and must be properly registered:
+
+* A provider must be registered as a kernel driver. This can be achieved by using the command `sc create PROVIDER type=kernel binPath=X:\PATH\TO\PROVIDER.SYS` or by using the Service Control Manager API's (`OpenServiceW`, `CreateServiceW`, etc.). You do not need an INF file or to use the Setup API in order to register a Provider driver.
+* A provider must be registered under the registry key `HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\WinFsp\Fsext`. Create a string value with name the textual representation of the Provider's transact code (see `DeviceTransactCode`) in `"%08lx"` format and value the Provider's driver name.
+
+For example the WinFuse Provider registers its driver under the name `WinFuse` and adds a registry value of `00093118` -> `WinFuse`.
+
+== Provider Lifetime
+
+Providers are loaded on demand by the FSD during volume creation. This process works as follows:
+
+* During volume creation (e.g. by using `FspFsctlCreateVolume`) a non-zero `FsextControlCode` must be specified in `VolumeParams`.
+* If the FSD sees the `FsextControlCode` as non-zero it attempts to find a corresponding Provider driver.
+** It first checks an internal mapping of codes to Provider drivers. If the code is found, the FSD proceeds to the `DeviceInit` step below.
+** If the code is not found in the internal mapping, the FSD checks the registry under the registry key `HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\WinFsp\Fsext`. If the code is not found the volume creation fails.
+** If the code is found the FSD loads the Provider driver using `ZwLoadDriver`. The Provider is supposed to register itself with the FSD during `DriverEntry` by calling `FspFsextProviderRegister`.
+** Finally the internal mapping of codes to Providers is rechecked. Assuming that everything worked as intended, the corresponding Provider driver is now loaded and we can proceed to the `DeviceInit` step.
+* The FSD proceeds to call the `DeviceInit` callback of the Provider. The Provider can use this call to initialize itself in relation to the new volume device object.
+* Assuming that the volume device object is created successfully, the FSD will do the following:
+** Forward any `FsextControlCode==DeviceTransactCode` requests that it gets in its `IRP_MJ_FILE_SYSTEM_CONTROL` to the Provider via `DeviceTransact`.
+** Call the Provider's `DeviceExpirationRoutine` once a second as part of the FSD's expiration process.
+* Eventually the volume device object will be torn down (e.g. because the corresponding `HANDLE` is closed). In this case the FSD will call the Provider's `DeviceFini` callback.
+
+Finally note that once loaded a Provider driver cannot be unloaded (without a reboot).

ext/tlib/callstack.c

@@ -1,7 +1,7 @@
 /**
  * @file tlib/callstack.c
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #include <tlib/callstack.h>

ext/tlib/callstack.h

@@ -1,7 +1,7 @@
 /**
  * @file tlib/callstack.h
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #ifndef TLIB_CALLSTACK_H_INCLUDED

ext/tlib/injected/allfunc.h

@@ -1,7 +1,7 @@
 /**
  * @file tlib/injected/allfunc.h
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #ifndef TLIB_INJECTED_ALLFUNC_H_INCLUDED

ext/tlib/injected/curlfunc.c

@@ -1,7 +1,7 @@
 /**
  * @file tlib/injected/curlfunc.c
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #include <tlib/injected/curlfunc.h>

ext/tlib/injected/curlfunc.h

@@ -1,7 +1,7 @@
 /**
  * @file tlib/injected/curlfunc.h
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #ifndef TLIB_INJECTED_CURLFUNC_H_INCLUDED

ext/tlib/injected/stdfunc.c

@@ -1,7 +1,7 @@
 /**
  * @file tlib/injected/stdfunc.c
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #include <tlib/injected/stdfunc.h>

ext/tlib/injected/stdfunc.h

@@ -1,7 +1,7 @@
 /**
  * @file tlib/injected/stdfunc.h
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #ifndef TLIB_INJECTED_STDFUNC_H_INCLUDED

ext/tlib/injection.c

@@ -1,7 +1,7 @@
 /**
  * @file tlib/injection.c
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #include <tlib/injection.h>

ext/tlib/injection.h

@@ -1,7 +1,7 @@
 /**
  * @file tlib/injection.h
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 /* NOTE: This header may usefully be included multiple times.

ext/tlib/testsuite.c

@@ -1,7 +1,7 @@
 /**
  * @file tlib/testsuite.c
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #include <tlib/testsuite.h>

ext/tlib/testsuite.h

@@ -1,7 +1,7 @@
 /**
  * @file tlib/testsuite.h
  *
- * @copyright 2014-2018 Bill Zissimopoulos
+ * @copyright 2014-2020 Bill Zissimopoulos
  */
 
 #ifndef TLIB_TESTSUITE_H_INCLUDED

inc/fuse/fuse.h

@@ -6,7 +6,7 @@
  *     FUSE: Filesystem in Userspace
  *     Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -67,11 +67,11 @@ struct fuse_operations
     /* S */ int (*flush)(const char *path, struct fuse_file_info *fi);
     /* S */ int (*release)(const char *path, struct fuse_file_info *fi);
     /* S */ int (*fsync)(const char *path, int datasync, struct fuse_file_info *fi);
-    /* _ */ int (*setxattr)(const char *path, const char *name, const char *value, size_t size,
+    /* S */ int (*setxattr)(const char *path, const char *name, const char *value, size_t size,
         int flags);
-    /* _ */ int (*getxattr)(const char *path, const char *name, char *value, size_t size);
-    /* _ */ int (*listxattr)(const char *path, char *namebuf, size_t size);
-    /* _ */ int (*removexattr)(const char *path, const char *name);
+    /* S */ int (*getxattr)(const char *path, const char *name, char *value, size_t size);
+    /* S */ int (*listxattr)(const char *path, char *namebuf, size_t size);
+    /* S */ int (*removexattr)(const char *path, const char *name);
     /* S */ int (*opendir)(const char *path, struct fuse_file_info *fi);
     /* S */ int (*readdir)(const char *path, void *buf, fuse_fill_dir_t filler, fuse_off_t off,
         struct fuse_file_info *fi);

inc/fuse/fuse_common.h

@@ -6,7 +6,7 @@
  *     FUSE: Filesystem in Userspace
  *     Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

inc/fuse/fuse_opt.h

@@ -6,7 +6,7 @@
  *     FUSE: Filesystem in Userspace
  *     Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

inc/fuse/winfsp_fuse.h

@@ -2,7 +2,7 @@
  * @file fuse/winfsp_fuse.h
  * WinFsp FUSE compatible API.
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -360,7 +360,10 @@ static inline int fsp_fuse_set_signal_handlers(void *se)
 
     static sigset_t sigmask;
     static pthread_t sigthr;
-    struct sigaction oldsa, newsa = { 0 };
+    struct sigaction oldsa, newsa;
+
+    // memset instead of initializer to avoid GCC -Wmissing-field-initializers warning
+    memset(&newsa, 0, sizeof newsa);
 
     if (0 != se)
     {

inc/fuse3/fuse.h

@@ -6,7 +6,7 @@
  *     FUSE: Filesystem in Userspace
  *     Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -106,11 +106,11 @@ struct fuse3_operations
     /* S */ int (*flush)(const char *path, struct fuse3_file_info *fi);
     /* S */ int (*release)(const char *path, struct fuse3_file_info *fi);
     /* S */ int (*fsync)(const char *path, int datasync, struct fuse3_file_info *fi);
-    /* _ */ int (*setxattr)(const char *path, const char *name, const char *value, size_t size,
+    /* S */ int (*setxattr)(const char *path, const char *name, const char *value, size_t size,
         int flags);
-    /* _ */ int (*getxattr)(const char *path, const char *name, char *value, size_t size);
-    /* _ */ int (*listxattr)(const char *path, char *namebuf, size_t size);
-    /* _ */ int (*removexattr)(const char *path, const char *name);
+    /* S */ int (*getxattr)(const char *path, const char *name, char *value, size_t size);
+    /* S */ int (*listxattr)(const char *path, char *namebuf, size_t size);
+    /* S */ int (*removexattr)(const char *path, const char *name);
     /* S */ int (*opendir)(const char *path, struct fuse3_file_info *fi);
     /* S */ int (*readdir)(const char *path, void *buf, fuse3_fill_dir_t filler, fuse_off_t off,
         struct fuse3_file_info *fi, enum fuse3_readdir_flags);

inc/fuse3/fuse_common.h

@@ -6,7 +6,7 @@
  *     FUSE: Filesystem in Userspace
  *     Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

inc/fuse3/fuse_opt.h

@@ -2,7 +2,7 @@
  * @file fuse3/fuse_opt.h
  * WinFsp FUSE3 compatible API.
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

inc/fuse3/winfsp_fuse.h

@@ -2,7 +2,7 @@
  * @file fuse3/winfsp_fuse.h
  * WinFsp FUSE3 compatible API.
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

inc/winfsp/fsctl.h

@@ -1,7 +1,7 @@
 /**
  * @file winfsp/fsctl.h
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -54,6 +54,8 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
 #define FSP_FSCTL_DECLSPEC_ALIGN        __declspec(align(FSP_FSCTL_DEFAULT_ALIGNMENT))
 
 /* fsctl device codes */
+#define FSP_FSCTL_MOUNTDEV              \
+    CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0x800 + 'M', METHOD_BUFFERED, FILE_ANY_ACCESS)
 #define FSP_FSCTL_VOLUME_NAME           \
     CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0x800 + 'N', METHOD_BUFFERED, FILE_ANY_ACCESS)
 #define FSP_FSCTL_VOLUME_LIST           \
@@ -65,6 +67,10 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
 #define FSP_FSCTL_STOP                  \
     CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0x800 + 'S', METHOD_BUFFERED, FILE_ANY_ACCESS)
 
+/* fsctl internal device codes (usable only in-kernel) */
+#define FSP_FSCTL_TRANSACT_INTERNAL     \
+    CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 0x800 + 'I', METHOD_NEITHER, FILE_ANY_ACCESS)
+
 #define FSP_FSCTL_VOLUME_PARAMS_PREFIX  "\\VolumeParams="
 
 #define FSP_FSCTL_VOLUME_NAME_SIZE      (64 * sizeof(WCHAR))
@@ -83,14 +89,14 @@ FSP_FSCTL_STATIC_ASSERT(FSP_FSCTL_VOLUME_NAME_SIZEMAX <= 260 * sizeof(WCHAR),
 #define FSP_FSCTL_TRANSACT_BATCH_BUFFER_SIZEMIN (64 * 1024)
 #define FSP_FSCTL_TRANSACT_BUFFER_SIZEMIN       FSP_FSCTL_TRANSACT_REQ_SIZEMAX
 
-#define FSP_FSCTL_TRANSACT_REQ_TOKEN_HANDLE(T)  ((HANDLE)((T) & 0xffffffff))
+#define FSP_FSCTL_TRANSACT_REQ_TOKEN_HANDLE(T)  ((HANDLE)((UINT_PTR)((T) & 0xffffffff)))
 #define FSP_FSCTL_TRANSACT_REQ_TOKEN_PID(T)     ((UINT32)(((T) >> 32) & 0xffffffff))
 
 #define FSP_FSCTL_DEVICECONTROL_SIZEMAX (4 * 1024)  /* must be < FSP_FSCTL_TRANSACT_{REQ,RSP}_SIZEMAX */
 
 /* marshalling */
 #pragma warning(push)
-#pragma warning(disable:4200)           /* zero-sized array in struct/union */
+#pragma warning(disable:4200 4201)      /* zero-sized array in struct/union; nameless struct/union */
 enum
 {
     FspFsctlTransactReservedKind = 0,
@@ -121,7 +127,7 @@ enum
 {
     FspFsctlTransactTimeoutMinimum = 1000,
     FspFsctlTransactTimeoutMaximum = 10000,
-    FspFsctlTransactTimeoutDefault = 1000,
+    FspFsctlTransactTimeoutDefault = 1000,  /* DEPRECATED: default is unspecified */
     FspFsctlIrpTimeoutMinimum = 60000,
     FspFsctlIrpTimeoutMaximum = 600000,
     FspFsctlIrpTimeoutDefault = 300000,
@@ -139,7 +145,7 @@ enum
     UINT64 VolumeCreationTime;\
     UINT32 VolumeSerialNumber;\
     /* I/O timeouts, capacity, etc. */\
-    UINT32 TransactTimeout;             /* FSP_FSCTL_TRANSACT timeout (millis; 1 sec - 10 sec) */\
+    UINT32 TransactTimeout;             /* DEPRECATED: (millis; 1 sec - 10 sec) */\
     UINT32 IrpTimeout;                  /* pending IRP timeout (millis; 1 min - 10 min) */\
     UINT32 IrpCapacity;                 /* maximum number of pending IRP's (100 - 1000)*/\
     UINT32 FileInfoTimeout;             /* FileInfo/Security/VolumeInfo timeout (millis) */\
@@ -152,7 +158,7 @@ enum
     UINT32 ReparsePointsAccessCheck:1;  /* file system performs reparse point access checks */\
     UINT32 NamedStreams:1;              /* file system supports named streams */\
     UINT32 HardLinks:1;                 /* unimplemented; set to 0 */\
-    UINT32 ExtendedAttributes:1;        /* unimplemented; set to 0 */\
+    UINT32 ExtendedAttributes:1;        /* file system supports extended attributes */\
     UINT32 ReadOnlyVolume:1;\
     /* kernel-mode flags */\
     UINT32 PostCleanupWhenModifiedOnly:1;   /* post Cleanup when a file was modified/deleted */\
@@ -166,7 +172,12 @@ enum
     UINT32 UmFileContextIsFullContext:1;    /* user mode: FileContext parameter is FullContext */\
     UINT32 UmReservedFlags:6;\
     /* additional kernel-mode flags */\
-    UINT32 KmReservedFlags:8;\
+    UINT32 AllowOpenInKernelMode:1;         /* allow kernel mode to open files when possible */\
+    UINT32 CasePreservedExtendedAttributes:1;   /* preserve case of EA (default is UPPERCASE) */\
+    UINT32 WslFeatures:1;                   /* support features required for WSLinux */\
+    UINT32 DirectoryMarkerAsNextOffset:1;   /* directory marker is next offset instead of last name */\
+    UINT32 RejectIrpPriorToTransact0:1;     /* reject IRP's prior to FspFsctlTransact with 0 buffers */\
+    UINT32 KmReservedFlags:3;\
     WCHAR Prefix[FSP_FSCTL_VOLUME_PREFIX_SIZE / sizeof(WCHAR)]; /* UNC prefix (\Server\Share) */\
     WCHAR FileSystemName[FSP_FSCTL_VOLUME_FSNAME_SIZE / sizeof(WCHAR)];
 #define FSP_FSCTL_VOLUME_PARAMS_V1_FIELD_DEFN\
@@ -175,22 +186,29 @@ enum
     UINT32 DirInfoTimeoutValid:1;       /* DirInfoTimeout field is valid */\
     UINT32 SecurityTimeoutValid:1;      /* SecurityTimeout field is valid*/\
     UINT32 StreamInfoTimeoutValid:1;    /* StreamInfoTimeout field is valid */\
-    UINT32 KmAdditionalReservedFlags:28;\
+    UINT32 EaTimeoutValid:1;            /* EaTimeout field is valid */\
+    UINT32 KmAdditionalReservedFlags:27;\
     UINT32 VolumeInfoTimeout;           /* volume info timeout (millis); overrides FileInfoTimeout */\
     UINT32 DirInfoTimeout;              /* dir info timeout (millis); overrides FileInfoTimeout */\
     UINT32 SecurityTimeout;             /* security info timeout (millis); overrides FileInfoTimeout */\
     UINT32 StreamInfoTimeout;           /* stream info timeout (millis); overrides FileInfoTimeout */\
-    UINT32 Reserved32[3];\
+    UINT32 EaTimeout;                   /* EA timeout (millis); overrides FileInfoTimeout */\
+    UINT32 FsextControlCode;\
+    UINT32 Reserved32[1];\
     UINT64 Reserved64[2];
 typedef struct
 {
     FSP_FSCTL_VOLUME_PARAMS_V0_FIELD_DEFN
 } FSP_FSCTL_VOLUME_PARAMS_V0;
+FSP_FSCTL_STATIC_ASSERT(456 == sizeof(FSP_FSCTL_VOLUME_PARAMS_V0),
+    "sizeof(FSP_FSCTL_VOLUME_PARAMS_V0) must be exactly 456.");
 typedef struct
 {
     FSP_FSCTL_VOLUME_PARAMS_V0_FIELD_DEFN
     FSP_FSCTL_VOLUME_PARAMS_V1_FIELD_DEFN
 } FSP_FSCTL_VOLUME_PARAMS;
+FSP_FSCTL_STATIC_ASSERT(504 == sizeof(FSP_FSCTL_VOLUME_PARAMS),
+    "sizeof(FSP_FSCTL_VOLUME_PARAMS) is currently 504. Update this assertion check if it changes.");
 typedef struct
 {
     UINT64 TotalSize;
@@ -198,6 +216,8 @@ typedef struct
     UINT16 VolumeLabelLength;
     WCHAR VolumeLabel[32];
 } FSP_FSCTL_VOLUME_INFO;
+FSP_FSCTL_STATIC_ASSERT(88 == sizeof(FSP_FSCTL_VOLUME_INFO),
+    "sizeof(FSP_FSCTL_VOLUME_INFO) must be exactly 88.");
 typedef struct
 {
     UINT32 FileAttributes;
@@ -210,7 +230,10 @@ typedef struct
     UINT64 ChangeTime;
     UINT64 IndexNumber;
     UINT32 HardLinks;                   /* unimplemented: set to 0 */
+    UINT32 EaSize;
 } FSP_FSCTL_FILE_INFO;
+FSP_FSCTL_STATIC_ASSERT(72 == sizeof(FSP_FSCTL_FILE_INFO),
+    "sizeof(FSP_FSCTL_FILE_INFO) must be exactly 72.");
 typedef struct
 {
     FSP_FSCTL_FILE_INFO FileInfo;
@@ -221,10 +244,16 @@ typedef struct
 {
     UINT16 Size;
     FSP_FSCTL_FILE_INFO FileInfo;
-    UINT8 Padding[24];
-        /* make struct as big as FILE_ID_BOTH_DIR_INFORMATION; allows for in-place copying */
+    union
+    {
+        UINT64 NextOffset;
+        UINT8 Padding[24];
+            /* make struct as big as FILE_ID_BOTH_DIR_INFORMATION; allows for in-place copying */
+    } DUMMYUNIONNAME;
     WCHAR FileNameBuf[];
 } FSP_FSCTL_DIR_INFO;
+FSP_FSCTL_STATIC_ASSERT(104 == sizeof(FSP_FSCTL_DIR_INFO),
+    "sizeof(FSP_FSCTL_DIR_INFO) must be exactly 104.");
 typedef struct
 {
     UINT16 Size;
@@ -232,6 +261,8 @@ typedef struct
     UINT64 StreamAllocationSize;
     WCHAR StreamNameBuf[];
 } FSP_FSCTL_STREAM_INFO;
+FSP_FSCTL_STATIC_ASSERT(24 == sizeof(FSP_FSCTL_STREAM_INFO),
+    "sizeof(FSP_FSCTL_STREAM_INFO) must be exactly 24.");
 typedef struct
 {
     UINT64 UserContext;
@@ -260,7 +291,7 @@ typedef struct
             UINT32 DesiredAccess;       /* FILE_{READ_DATA,WRITE_DATA,etc.} */
             UINT32 GrantedAccess;       /* FILE_{READ_DATA,WRITE_DATA,etc.} */
             UINT32 ShareAccess;         /* FILE_SHARE_{READ,WRITE,DELETE} */
-            FSP_FSCTL_TRANSACT_BUF Ea;  /* reserved; not currently implemented */
+            FSP_FSCTL_TRANSACT_BUF Ea;  /* extended attributes or reparse point buffer */
             UINT32 UserMode:1;          /* request originated in user mode */
             UINT32 HasTraversePrivilege:1;  /* requestor has TOKEN_HAS_TRAVERSE_PRIVILEGE */
             UINT32 HasBackupPrivilege:1;    /* requestor has TOKEN_HAS_BACKUP_PRIVILEGE */
@@ -268,7 +299,9 @@ typedef struct
             UINT32 OpenTargetDirectory:1;   /* open target dir and report FILE_{EXISTS,DOES_NOT_EXIST} */
             UINT32 CaseSensitive:1;         /* FileName comparisons should be case-sensitive */
             UINT32 HasTrailingBackslash:1;  /* FileName had trailing backslash */
-            UINT32 ReservedFlags:25;
+            UINT32 AcceptsSecurityDescriptor:1;
+            UINT32 EaIsReparsePoint:1;      /* Ea buffer is reparse point */
+            UINT32 ReservedFlags:24;
             UINT16 NamedStream;             /* request targets named stream; colon offset in FileName */
         } Create;
         struct
@@ -278,6 +311,7 @@ typedef struct
             UINT32 FileAttributes;      /* file attributes for overwritten/superseded files */
             UINT64 AllocationSize;      /* allocation size for overwritten/superseded files */
             UINT32 Supersede:1;         /* 0: FILE_OVERWRITE operation, 1: FILE_SUPERSEDE operation */
+            FSP_FSCTL_TRANSACT_BUF Ea;  /* extended attributes buffer */
         } Overwrite;
         struct
         {
@@ -354,6 +388,17 @@ typedef struct
             } Info;
         } SetInformation;
         struct
+        {
+            UINT64 UserContext;
+            UINT64 UserContext2;
+        } QueryEa;
+        struct
+        {
+            UINT64 UserContext;
+            UINT64 UserContext2;
+            FSP_FSCTL_TRANSACT_BUF Ea;
+        } SetEa;
+        struct
         {
             UINT64 UserContext;
             UINT64 UserContext2;
@@ -439,9 +484,11 @@ typedef struct
                 UINT64 UserContext;     /* user context associated with file node */
                 UINT64 UserContext2;    /* user context associated with file descriptor (handle) */
                 UINT32 GrantedAccess;   /* FILE_{READ_DATA,WRITE_DATA,etc.} */
+                FSP_FSCTL_TRANSACT_BUF SecurityDescriptor;
                 FSP_FSCTL_FILE_INFO FileInfo;
                 FSP_FSCTL_TRANSACT_BUF FileName;
                 UINT32 DisableCache:1;
+                UINT32 HasSecurityDescriptor:1;
             } Opened;
             /* IoStatus.Status == STATUS_REPARSE */
             struct
@@ -466,6 +513,15 @@ typedef struct
             FSP_FSCTL_FILE_INFO FileInfo;       /* valid: File{Allocation,Basic,EndOfFile}Information */
         } SetInformation;
         struct
+        {
+            FSP_FSCTL_TRANSACT_BUF Ea;
+        } QueryEa;
+        struct
+        {
+            FSP_FSCTL_FILE_INFO FileInfo;
+            FSP_FSCTL_TRANSACT_BUF Ea;          /* Size==0 means no extended atttributed returned */
+        } SetEa;
+        struct
         {
             FSP_FSCTL_FILE_INFO FileInfo;       /* valid when flushing file (not volume) */
         } FlushBuffers;
@@ -545,11 +601,13 @@ static inline FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactConsumeResponse(
     return NextResponse <= ResponseBufEnd ? (FSP_FSCTL_TRANSACT_RSP *)NextResponse : 0;
 }
 
-#if !defined(WINFSP_SYS_INTERNAL)
+#if !defined(_KERNEL_MODE)
 FSP_API NTSTATUS FspFsctlCreateVolume(PWSTR DevicePath,
     const FSP_FSCTL_VOLUME_PARAMS *VolumeParams,
     PWCHAR VolumeNameBuf, SIZE_T VolumeNameSize,
     PHANDLE PVolumeHandle);
+FSP_API NTSTATUS FspFsctlMakeMountdev(HANDLE VolumeHandle,
+    BOOLEAN Persistent, GUID *UniqueId);
 FSP_API NTSTATUS FspFsctlTransact(HANDLE VolumeHandle,
     PVOID ResponseBuf, SIZE_T ResponseBufSize,
     PVOID RequestBuf, SIZE_T *PRequestBufSize,
@@ -558,6 +616,20 @@ FSP_API NTSTATUS FspFsctlStop(HANDLE VolumeHandle);
 FSP_API NTSTATUS FspFsctlGetVolumeList(PWSTR DevicePath,
     PWCHAR VolumeListBuf, PSIZE_T PVolumeListSize);
 FSP_API NTSTATUS FspFsctlPreflight(PWSTR DevicePath);
+
+typedef struct
+{
+    /* in */
+    HANDLE VolumeHandle;                /* volume handle returned by FspFsctlCreateVolume */
+    PWSTR VolumeName;                   /* volume name returned by FspFsctlCreateVolume */
+    PSECURITY_DESCRIPTOR Security;      /* optional: security descriptor for directories */
+    UINT64 Reserved;                    /* reserved for future use */
+    /* in/out */
+    PWSTR MountPoint;                   /* FspMountSet sets drive in buffer when passed "*:" */
+    HANDLE MountHandle;                 /* FspMountSet sets, FspMountRemove uses */
+} FSP_MOUNT_DESC;
+FSP_API NTSTATUS FspMountSet(FSP_MOUNT_DESC *Desc);
+FSP_API NTSTATUS FspMountRemove(FSP_MOUNT_DESC *Desc);
 #endif
 
 #ifdef __cplusplus

inc/winfsp/launch.h

@@ -5,7 +5,7 @@
  * In order to use the WinFsp Launch API a program must include <winfsp/launch.h>
  * and link with the winfsp_x64.dll (or winfsp_x86.dll) library.
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -287,11 +287,13 @@ typedef struct _FSP_LAUNCH_REG_RECORD
     PWSTR RunAs;
     PWSTR Security;
     PWSTR AuthPackage;
-    PVOID Reserved0[5];
+    PWSTR Stderr;
+    PVOID Reserved0[4];
     ULONG JobControl;
     ULONG Credentials;
     ULONG AuthPackageId;
-    ULONG Reserved1[5];
+    ULONG Recovery;
+    ULONG Reserved1[4];
     UINT8 Buffer[];
 } FSP_LAUNCH_REG_RECORD;
 #pragma warning(pop)

inc/winfsp/winfsp.h

@@ -5,7 +5,7 @@
  * In order to use the WinFsp API the user mode file system must include <winfsp/winfsp.h>
  * and link with the winfsp_x64.dll (or winfsp_x86.dll) library.
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -85,6 +85,21 @@ typedef struct _REPARSE_DATA_BUFFER
 } REPARSE_DATA_BUFFER, *PREPARSE_DATA_BUFFER;
 #endif
 
+/*
+ * The FILE_FULL_EA_INFORMATION definitions are missing from the user mode headers.
+ */
+#if !defined(FILE_NEED_EA)
+#define FILE_NEED_EA                    0x00000080
+#endif
+typedef struct _FILE_FULL_EA_INFORMATION
+{
+    ULONG NextEntryOffset;
+    UCHAR Flags;
+    UCHAR EaNameLength;
+    USHORT EaValueLength;
+    CHAR EaName[1];
+} FILE_FULL_EA_INFORMATION, *PFILE_FULL_EA_INFORMATION;
+
 /**
  * @group File System
  *
@@ -894,12 +909,141 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
      */
     NTSTATUS (*SetDelete)(FSP_FILE_SYSTEM *FileSystem,
         PVOID FileContext, PWSTR FileName, BOOLEAN DeleteFile);
+    /**
+     * Create new file or directory.
+     *
+     * This function works like Create, except that it also accepts an extra buffer that
+     * may contain extended attributes or a reparse point.
+     *
+     * NOTE: If both Create and CreateEx are defined, CreateEx takes precedence.
+     *
+     * @param FileSystem
+     *     The file system on which this request is posted.
+     * @param FileName
+     *     The name of the file or directory to be created.
+     * @param CreateOptions
+     *     Create options for this request. This parameter has the same meaning as the
+     *     CreateOptions parameter of the NtCreateFile API. User mode file systems should typically
+     *     only be concerned with the flag FILE_DIRECTORY_FILE, which is an instruction to create a
+     *     directory rather than a file. Some file systems may also want to pay attention to the
+     *     FILE_NO_INTERMEDIATE_BUFFERING and FILE_WRITE_THROUGH flags, although these are
+     *     typically handled by the FSD component.
+     * @param GrantedAccess
+     *     Determines the specific access rights that have been granted for this request. Upon
+     *     receiving this call all access checks have been performed and the user mode file system
+     *     need not perform any additional checks. However this parameter may be useful to a user
+     *     mode file system; for example the WinFsp-FUSE layer uses this parameter to determine
+     *     which flags to use in its POSIX open() call.
+     * @param FileAttributes
+     *     File attributes to apply to the newly created file or directory.
+     * @param SecurityDescriptor
+     *     Security descriptor to apply to the newly created file or directory. This security
+     *     descriptor will always be in self-relative format. Its length can be retrieved using the
+     *     Windows GetSecurityDescriptorLength API. Will be NULL for named streams.
+     * @param AllocationSize
+     *     Allocation size for the newly created file.
+     * @param ExtraBuffer
+     *     Extended attributes or reparse point buffer.
+     * @param ExtraLength
+     *     Extended attributes or reparse point buffer length.
+     * @param ExtraBufferIsReparsePoint
+     *     FALSE: extra buffer is extended attributes; TRUE: extra buffer is reparse point.
+     * @param PFileContext [out]
+     *     Pointer that will receive the file context on successful return from this call.
+     * @param FileInfo [out]
+     *     Pointer to a structure that will receive the file information on successful return
+     *     from this call. This information includes file attributes, file times, etc.
+     * @return
+     *     STATUS_SUCCESS or error code.
+     */
+    NTSTATUS (*CreateEx)(FSP_FILE_SYSTEM *FileSystem,
+        PWSTR FileName, UINT32 CreateOptions, UINT32 GrantedAccess,
+        UINT32 FileAttributes, PSECURITY_DESCRIPTOR SecurityDescriptor, UINT64 AllocationSize,
+        PVOID ExtraBuffer, ULONG ExtraLength, BOOLEAN ExtraBufferIsReparsePoint,
+        PVOID *PFileContext, FSP_FSCTL_FILE_INFO *FileInfo);
+    /**
+     * Overwrite a file.
+     *
+     * This function works like Overwrite, except that it also accepts EA (extended attributes).
+     *
+     * NOTE: If both Overwrite and OverwriteEx are defined, OverwriteEx takes precedence.
+     *
+     * @param FileSystem
+     *     The file system on which this request is posted.
+     * @param FileContext
+     *     The file context of the file to overwrite.
+     * @param FileAttributes
+     *     File attributes to apply to the overwritten file.
+     * @param ReplaceFileAttributes
+     *     When TRUE the existing file attributes should be replaced with the new ones.
+     *     When FALSE the existing file attributes should be merged (or'ed) with the new ones.
+     * @param AllocationSize
+     *     Allocation size for the overwritten file.
+     * @param Ea
+     *     Extended attributes buffer.
+     * @param EaLength
+     *     Extended attributes buffer length.
+     * @param FileInfo [out]
+     *     Pointer to a structure that will receive the file information on successful return
+     *     from this call. This information includes file attributes, file times, etc.
+     * @return
+     *     STATUS_SUCCESS or error code.
+     */
+    NTSTATUS (*OverwriteEx)(FSP_FILE_SYSTEM *FileSystem,
+        PVOID FileContext, UINT32 FileAttributes, BOOLEAN ReplaceFileAttributes, UINT64 AllocationSize,
+        PFILE_FULL_EA_INFORMATION Ea, ULONG EaLength,
+        FSP_FSCTL_FILE_INFO *FileInfo);
+    /**
+     * Get extended attributes.
+     *
+     * @param FileSystem
+     *     The file system on which this request is posted.
+     * @param FileContext
+     *     The file context of the file to get extended attributes for.
+     * @param Ea
+     *     Extended attributes buffer.
+     * @param EaLength
+     *     Extended attributes buffer length.
+     * @param PBytesTransferred [out]
+     *     Pointer to a memory location that will receive the actual number of bytes transferred.
+     * @return
+     *     STATUS_SUCCESS or error code.
+     * @see
+     *     SetEa
+     *     FspFileSystemAddEa
+     */
+    NTSTATUS (*GetEa)(FSP_FILE_SYSTEM *FileSystem,
+        PVOID FileContext,
+        PFILE_FULL_EA_INFORMATION Ea, ULONG EaLength, PULONG PBytesTransferred);
+    /**
+     * Set extended attributes.
+     *
+     * @param FileSystem
+     *     The file system on which this request is posted.
+     * @param FileContext
+     *     The file context of the file to set extended attributes for.
+     * @param Ea
+     *     Extended attributes buffer.
+     * @param EaLength
+     *     Extended attributes buffer length.
+     * @param FileInfo [out]
+     *     Pointer to a structure that will receive the file information on successful return
+     *     from this call. This information includes file attributes, file times, etc.
+     * @return
+     *     STATUS_SUCCESS or error code.
+     * @see
+     *     GetEa
+     */
+    NTSTATUS (*SetEa)(FSP_FILE_SYSTEM *FileSystem,
+        PVOID FileContext,
+        PFILE_FULL_EA_INFORMATION Ea, ULONG EaLength,
+        FSP_FSCTL_FILE_INFO *FileInfo);
 
     /*
      * This ensures that this interface will always contain 64 function pointers.
      * Please update when changing the interface as it is important for future compatibility.
      */
-    NTSTATUS (*Reserved[37])();
+    NTSTATUS (*Reserved[33])();
 } FSP_FILE_SYSTEM_INTERFACE;
 FSP_FSCTL_STATIC_ASSERT(sizeof(FSP_FILE_SYSTEM_INTERFACE) == 64 * sizeof(NTSTATUS (*)()),
     "FSP_FILE_SYSTEM_INTERFACE must have 64 entries.");
@@ -1203,6 +1347,10 @@ FSP_API NTSTATUS FspFileSystemOpQueryInformation(FSP_FILE_SYSTEM *FileSystem,
     FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
 FSP_API NTSTATUS FspFileSystemOpSetInformation(FSP_FILE_SYSTEM *FileSystem,
     FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
+FSP_API NTSTATUS FspFileSystemOpQueryEa(FSP_FILE_SYSTEM *FileSystem,
+    FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
+FSP_API NTSTATUS FspFileSystemOpSetEa(FSP_FILE_SYSTEM *FileSystem,
+    FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
 FSP_API NTSTATUS FspFileSystemOpFlushBuffers(FSP_FILE_SYSTEM *FileSystem,
     FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
 FSP_API NTSTATUS FspFileSystemOpQueryVolumeInformation(FSP_FILE_SYSTEM *FileSystem,
@@ -1433,6 +1581,70 @@ FSP_API NTSTATUS FspFileSystemCanReplaceReparsePoint(
  */
 FSP_API BOOLEAN FspFileSystemAddStreamInfo(FSP_FSCTL_STREAM_INFO *StreamInfo,
     PVOID Buffer, ULONG Length, PULONG PBytesTransferred);
+/**
+ * Enumerate extended attributes in a buffer.
+ *
+ * This is a helper for implementing the CreateEx and SetEa operations in file systems
+ * that support extended attributes.
+ *
+ * @param FileSystem
+ *     The file system object.
+ * @param EnumerateEa
+ *     Pointer to function that receives a single extended attribute. The function
+ *     should return STATUS_SUCCESS or an error code if unsuccessful.
+ * @param Context
+ *     User context to supply to EnumEa.
+ * @param Ea
+ *     Extended attributes buffer.
+ * @param EaLength
+ *     Extended attributes buffer length.
+ * @return
+ *     STATUS_SUCCESS or error code from EnumerateEa.
+ */
+FSP_API NTSTATUS FspFileSystemEnumerateEa(FSP_FILE_SYSTEM *FileSystem,
+    NTSTATUS (*EnumerateEa)(
+        FSP_FILE_SYSTEM *FileSystem, PVOID Context,
+        PFILE_FULL_EA_INFORMATION SingleEa),
+    PVOID Context,
+    PFILE_FULL_EA_INFORMATION Ea, ULONG EaLength);
+/**
+ * Add extended attribute to a buffer.
+ *
+ * This is a helper for implementing the GetEa operation.
+ *
+ * @param SingleEa
+ *     The extended attribute to add. A value of NULL acts as an EOF marker for a GetEa
+ *     operation.
+ * @param Ea
+ *     Pointer to a buffer that will receive the extended attribute. This should contain
+ *     the same value passed to the GetEa Ea parameter.
+ * @param EaLength
+ *     Length of buffer. This should contain the same value passed to the GetEa
+ *     EaLength parameter.
+ * @param PBytesTransferred [out]
+ *     Pointer to a memory location that will receive the actual number of bytes stored. This should
+ *     contain the same value passed to the GetEa PBytesTransferred parameter.
+ * @return
+ *     TRUE if the extended attribute was added, FALSE if there was not enough space to add it.
+ * @see
+ *     GetEa
+ */
+FSP_API BOOLEAN FspFileSystemAddEa(PFILE_FULL_EA_INFORMATION SingleEa,
+    PFILE_FULL_EA_INFORMATION Ea, ULONG EaLength, PULONG PBytesTransferred);
+/**
+ * Get extended attribute "packed" size. This computation matches what NTFS reports.
+ *
+ * @param SingleEa
+ *     The extended attribute to get the size for.
+ * @return
+ *     The packed size of the extended attribute.
+ */
+static inline
+UINT32 FspFileSystemGetEaPackedSize(PFILE_FULL_EA_INFORMATION SingleEa)
+{
+    /* magic computations are courtesy of NTFS */
+    return 5 + SingleEa->EaNameLength + SingleEa->EaValueLength;
+}
 
 /*
  * Directory buffering

inc/winfsp/winfsp.hpp

@@ -2,7 +2,7 @@
  * @file winfsp/winfsp.hpp
  * WinFsp C++ Layer.
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -612,6 +612,14 @@ public:
     {
         _VolumeParams.PassQueryDirectoryPattern = !!PassQueryDirectoryPattern;
     }
+    BOOLEAN FlushAndPurgeOnCleanup()
+    {
+        return _VolumeParams.FlushAndPurgeOnCleanup;
+    }
+    VOID SetFlushAndPurgeOnCleanup(BOOLEAN FlushAndPurgeOnCleanup)
+    {
+        _VolumeParams.FlushAndPurgeOnCleanup = !!FlushAndPurgeOnCleanup;
+    }
     PWSTR Prefix()
     {
         return _VolumeParams.Prefix;

opt/cygfuse/fuse/cygfuse.c

@@ -1,7 +1,7 @@
 /**
  * @file fuse/cygfuse.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

opt/cygfuse/fuse/fuse.cygport

@@ -1,6 +1,6 @@
 NAME="fuse"
 VERSION=2.8
-RELEASE=9
+RELEASE=10
 CATEGORY="Utils"
 SUMMARY="WinFsp FUSE compatibility layer"
 DESCRIPTION="Enables FUSE file systems to be run on Cygwin."

opt/cygfuse/fuse3/cygfuse.c

@@ -1,7 +1,7 @@
 /**
  * @file fuse3/cygfuse.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

opt/cygfuse/fuse3/fuse3.cygport

@@ -1,6 +1,6 @@
 NAME="fuse3"
 VERSION=3.2
-RELEASE=1
+RELEASE=2
 CATEGORY="Utils"
 SUMMARY="WinFsp FUSE3 compatibility layer"
 DESCRIPTION="Enables FUSE3 file systems to be run on Cygwin."

opt/fsext/inc/winfsp/fsext.h

@@ -0,0 +1,96 @@
+/**
+ * @file winfsp/fsext.h
+ *
+ * @copyright 2015-2020 Bill Zissimopoulos
+ */
+/*
+ * This file is part of WinFsp.
+ *
+ * You can redistribute it and/or modify it under the terms of the GNU
+ * General Public License version 3 as published by the Free Software
+ * Foundation.
+ *
+ * Licensees holding a valid commercial license may use this software
+ * in accordance with the commercial license agreement provided in
+ * conjunction with the software.  The terms and conditions of any such
+ * commercial license agreement shall govern, supersede, and render
+ * ineffective any application of the GPLv3 license to this software,
+ * notwithstanding of any reference thereto in the software or
+ * associated repository.
+ */
+
+#ifndef WINFSP_FSEXT_H_INCLUDED
+#define WINFSP_FSEXT_H_INCLUDED
+
+#if !defined(_KERNEL_MODE)
+#error This file can only be included when compiling for kernel mode.
+#endif
+
+#include <winfsp/fsctl.h>
+
+#if defined(WINFSP_SYS_INTERNAL)
+#define FSP_DDI                         __declspec(dllexport)
+#else
+#define FSP_DDI                         __declspec(dllimport)
+#endif
+#if !defined(FSP_DDI_DEF)
+#define FSP_DDI_DEF(RetType, Name, ...) FSP_DDI RetType NTAPI Name ( __VA_ARGS__ );
+#endif
+
+typedef struct
+{
+    UINT32 Version;
+    /* in */
+    UINT32 DeviceTransactCode;
+    UINT32 DeviceExtensionSize;
+    NTSTATUS (*DeviceInit)(PDEVICE_OBJECT DeviceObject, FSP_FSCTL_VOLUME_PARAMS *VolumeParams);
+    VOID (*DeviceFini)(PDEVICE_OBJECT DeviceObject);
+    VOID (*DeviceExpirationRoutine)(PDEVICE_OBJECT DeviceObject, UINT64 ExpirationTime);
+    NTSTATUS (*DeviceTransact)(PDEVICE_OBJECT DeviceObject, PIRP Irp);
+    /* out */
+    UINT32 DeviceExtensionOffset;
+} FSP_FSEXT_PROVIDER;
+
+FSP_DDI_DEF(NTSTATUS, FspFsextProviderRegister,
+    FSP_FSEXT_PROVIDER *Provider)
+FSP_DDI_DEF(NTSTATUS, FspFsextProviderTransact,
+    PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
+    FSP_FSCTL_TRANSACT_RSP *Response, FSP_FSCTL_TRANSACT_REQ **PRequest)
+
+FSP_DDI_DEF(NTSTATUS, FspPosixMapUidToSid,
+    UINT32 Uid,
+    PSID *PSid)
+FSP_DDI_DEF(NTSTATUS, FspPosixMapSidToUid,
+    PSID Sid,
+    PUINT32 PUid)
+FSP_DDI_DEF(VOID, FspDeleteSid,
+    PSID Sid,
+    NTSTATUS (*CreateFunc)())
+FSP_DDI_DEF(NTSTATUS, FspPosixMapPermissionsToSecurityDescriptor,
+    UINT32 Uid,
+    UINT32 Gid,
+    UINT32 Mode,
+    PSECURITY_DESCRIPTOR *PSecurityDescriptor)
+FSP_DDI_DEF(NTSTATUS, FspPosixMapSecurityDescriptorToPermissions,
+    PSECURITY_DESCRIPTOR SecurityDescriptor,
+    PUINT32 PUid,
+    PUINT32 PGid,
+    PUINT32 PMode)
+FSP_DDI_DEF(NTSTATUS, FspPosixMapWindowsToPosixPathEx,
+    PWSTR WindowsPath,
+    char **PPosixPath,
+    BOOLEAN Translate)
+FSP_DDI_DEF(NTSTATUS, FspPosixMapPosixToWindowsPathEx,
+    const char *PosixPath,
+    PWSTR *PWindowsPath,
+    BOOLEAN Translate)
+FSP_DDI_DEF(VOID, FspPosixDeletePath,
+    void *Path)
+FSP_DDI_DEF(VOID, FspPosixEncodeWindowsPath,
+    PWSTR WindowsPath,
+    ULONG Size)
+FSP_DDI_DEF(VOID, FspPosixDecodeWindowsPath,
+    PWSTR WindowsPath,
+    ULONG Size)
+
+#endif

opt/fsext/lib/winfsp.impdef

@@ -0,0 +1,6 @@
+// tools\impdef.bat lib\winfsp.impdef lib\winfsp-x64.lib
+// tools\impdef.bat lib\winfsp.impdef lib\winfsp-x86.lib
+
+#define FSP_DDI_DEF(RetType, Name, ...) __declspec(dllexport) RetType NTAPI Name ( __VA_ARGS__ ) {}
+#include <ntifs.h>
+#include <winfsp/fsext.h>

src/dll/debug.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/debug.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/dirbuf.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/dirbuf.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -335,6 +335,18 @@ FSP_API VOID FspFileSystemReleaseDirectoryBuffer(PVOID *PDirBuffer)
 
     FSP_FILE_SYSTEM_DIRECTORY_BUFFER *DirBuffer = *PDirBuffer;
 
+    /* eliminate invalidated entries from the index */
+    PULONG Index = (PULONG)(DirBuffer->Buffer + DirBuffer->HiMark);
+    ULONG Count = (DirBuffer->Capacity - DirBuffer->HiMark) / sizeof(ULONG);
+    ULONG I, J;
+    for (I = Count - 1, J = Count; I < Count; I--)
+    {
+        if (FspFileSystemDirectoryBufferEntryInvalid == Index[I])
+            continue;
+        Index[--J] = Index[I];
+    }
+    DirBuffer->HiMark = (ULONG)((PUINT8)&Index[J] - DirBuffer->Buffer);
+
     FspFileSystemSortDirectoryBuffer(DirBuffer);
 
     ReleaseSRWLockExclusive(&DirBuffer->Lock);

src/dll/eventlog.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/eventlog.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/fs.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fs.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -24,41 +24,19 @@
 enum
 {
     FspFileSystemDispatcherThreadCountMin = 2,
+    FspFileSystemDispatcherDefaultThreadCountMin = 4,
+    FspFileSystemDispatcherDefaultThreadCountMax = 16,
 };
 
 static FSP_FILE_SYSTEM_INTERFACE FspFileSystemNullInterface;
 
 static INIT_ONCE FspFileSystemInitOnce = INIT_ONCE_STATIC_INIT;
 static DWORD FspFileSystemTlsKey = TLS_OUT_OF_INDEXES;
-static NTSTATUS (NTAPI *FspNtOpenSymbolicLinkObject)(
-    PHANDLE LinkHandle, ACCESS_MASK DesiredAccess, POBJECT_ATTRIBUTES ObjectAttributes);
-static NTSTATUS (NTAPI *FspNtMakeTemporaryObject)(
-    HANDLE Handle);
-static NTSTATUS (NTAPI *FspNtClose)(
-    HANDLE Handle);
 
 static BOOL WINAPI FspFileSystemInitialize(
     PINIT_ONCE InitOnce, PVOID Parameter, PVOID *Context)
 {
-    HANDLE Handle;
-
     FspFileSystemTlsKey = TlsAlloc();
-
-    Handle = GetModuleHandleW(L"ntdll.dll");
-    if (0 != Handle)
-    {
-        FspNtOpenSymbolicLinkObject = (PVOID)GetProcAddress(Handle, "NtOpenSymbolicLinkObject");
-        FspNtMakeTemporaryObject = (PVOID)GetProcAddress(Handle, "NtMakeTemporaryObject");
-        FspNtClose = (PVOID)GetProcAddress(Handle, "NtClose");
-
-        if (0 == FspNtOpenSymbolicLinkObject || 0 == FspNtMakeTemporaryObject || 0 == FspNtClose)
-        {
-            FspNtOpenSymbolicLinkObject = 0;
-            FspNtMakeTemporaryObject = 0;
-            FspNtClose = 0;
-        }
-    }
-
     return TRUE;
 }
 
@@ -91,7 +69,9 @@ FSP_API NTSTATUS FspFileSystemPreflight(PWSTR DevicePath,
         Result = STATUS_SUCCESS;
     else
     {
-        if (FspPathIsDrive(MountPoint))
+        if (FspPathIsMountmgrMountPoint(MountPoint))
+            Result = STATUS_SUCCESS; /* cannot check with the mount manager, assume success */
+        else if (FspPathIsDrive(MountPoint))
             Result = QueryDosDeviceW(MountPoint, TargetPath, MAX_PATH) ?
                 STATUS_OBJECT_NAME_COLLISION : STATUS_SUCCESS;
         else
@@ -161,6 +141,8 @@ FSP_API NTSTATUS FspFileSystemCreate(PWSTR DevicePath,
     FileSystem->Operations[FspFsctlTransactWriteKind] = FspFileSystemOpWrite;
     FileSystem->Operations[FspFsctlTransactQueryInformationKind] = FspFileSystemOpQueryInformation;
     FileSystem->Operations[FspFsctlTransactSetInformationKind] = FspFileSystemOpSetInformation;
+    FileSystem->Operations[FspFsctlTransactQueryEaKind] = FspFileSystemOpQueryEa;
+    FileSystem->Operations[FspFsctlTransactSetEaKind] = FspFileSystemOpSetEa;
     FileSystem->Operations[FspFsctlTransactFlushBuffersKind] = FspFileSystemOpFlushBuffers;
     FileSystem->Operations[FspFsctlTransactQueryVolumeInformationKind] = FspFileSystemOpQueryVolumeInformation;
     FileSystem->Operations[FspFsctlTransactSetVolumeInformationKind] = FspFileSystemOpSetVolumeInformation;
@@ -192,205 +174,6 @@ FSP_API VOID FspFileSystemDelete(FSP_FILE_SYSTEM *FileSystem)
     MemFree(FileSystem);
 }
 
-static NTSTATUS FspFileSystemLauncherDefineDosDevice(
-    WCHAR Sign, PWSTR MountPoint, PWSTR VolumeName)
-{
-    if (2 != lstrlenW(MountPoint) ||
-        FSP_FSCTL_VOLUME_NAME_SIZEMAX / sizeof(WCHAR) <= lstrlenW(VolumeName))
-        return STATUS_INVALID_PARAMETER;
-
-    WCHAR Argv0[4];
-    PWSTR Argv[2];
-    NTSTATUS Result;
-    ULONG ErrorCode;
-
-    Argv0[0] = Sign;
-    Argv0[1] = MountPoint[0];
-    Argv0[2] = MountPoint[1];
-    Argv0[3] = L'\0';
-
-    Argv[0] = Argv0;
-    Argv[1] = VolumeName;
-
-    Result = FspLaunchCallLauncherPipe(FspLaunchCmdDefineDosDevice, 2, Argv, 0, 0, 0, &ErrorCode);
-    return !NT_SUCCESS(Result) ? Result : FspNtStatusFromWin32(ErrorCode);
-}
-
-static NTSTATUS FspFileSystemSetMountPoint_Drive(PWSTR MountPoint, PWSTR VolumeName,
-    PHANDLE PMountHandle)
-{
-    NTSTATUS Result;
-    BOOLEAN IsLocalSystem, IsServiceContext;
-
-    *PMountHandle = 0;
-
-    Result = FspServiceContextCheck(0, &IsLocalSystem);
-    IsServiceContext = NT_SUCCESS(Result) && !IsLocalSystem;
-    if (IsServiceContext)
-    {
-        /*
-         * If the current process is in the service context but not LocalSystem,
-         * ask the launcher to DefineDosDevice for us. This is because the launcher
-         * runs in the LocalSystem context and can create global drives.
-         *
-         * In this case the launcher will also add DELETE access to the drive symlink
-         * for us, so that we can make it temporary below.
-         */
-        Result = FspFileSystemLauncherDefineDosDevice(L'+', MountPoint, VolumeName);
-        if (!NT_SUCCESS(Result))
-            return Result;
-    }
-    else
-    {
-        if (!DefineDosDeviceW(DDD_RAW_TARGET_PATH, MountPoint, VolumeName))
-            return FspNtStatusFromWin32(GetLastError());
-    }
-
-    if (0 != FspNtOpenSymbolicLinkObject)
-    {
-        WCHAR SymlinkBuf[6];
-        UNICODE_STRING Symlink;
-        OBJECT_ATTRIBUTES Obja;
-
-        memcpy(SymlinkBuf, L"\\??\\X:", sizeof SymlinkBuf);
-        SymlinkBuf[4] = MountPoint[0];
-        Symlink.Length = Symlink.MaximumLength = sizeof SymlinkBuf;
-        Symlink.Buffer = SymlinkBuf;
-
-        memset(&Obja, 0, sizeof Obja);
-        Obja.Length = sizeof Obja;
-        Obja.ObjectName = &Symlink;
-        Obja.Attributes = OBJ_CASE_INSENSITIVE;
-
-        Result = FspNtOpenSymbolicLinkObject(PMountHandle, DELETE, &Obja);
-        if (NT_SUCCESS(Result))
-        {
-            Result = FspNtMakeTemporaryObject(*PMountHandle);
-            if (!NT_SUCCESS(Result))
-            {
-                FspNtClose(*PMountHandle);
-                *PMountHandle = 0;
-            }
-        }
-    }
-
-    /* HACK:
-     *
-     * Handles do not use the low 2 bits (unless they are console handles).
-     * Abuse this fact to remember that we are running in the service context.
-     */
-    *PMountHandle = (HANDLE)(UINT_PTR)((DWORD)(UINT_PTR)*PMountHandle | IsServiceContext);
-
-    return STATUS_SUCCESS;
-}
-
-static NTSTATUS FspFileSystemSetMountPoint_Directory(PWSTR MountPoint, PWSTR VolumeName,
-    PSECURITY_DESCRIPTOR SecurityDescriptor, PHANDLE PMountHandle)
-{
-    NTSTATUS Result;
-    SECURITY_ATTRIBUTES SecurityAttributes;
-    HANDLE MountHandle = INVALID_HANDLE_VALUE;
-    DWORD Backslashes, Bytes;
-    USHORT VolumeNameLength, BackslashLength, ReparseDataLength;
-    PREPARSE_DATA_BUFFER ReparseData = 0;
-    PWSTR P, PathBuffer;
-
-    *PMountHandle = 0;
-
-    /*
-     * Windows does not allow mount points (junctions) to point to network file systems.
-     *
-     * Count how many backslashes our VolumeName has. If it is 3 or more this is a network
-     * file system. Preemptively return STATUS_NETWORK_ACCESS_DENIED.
-     */
-    for (P = VolumeName, Backslashes = 0; *P; P++)
-        if (L'\\' == *P)
-            if (3 == ++Backslashes)
-            {
-                Result = STATUS_NETWORK_ACCESS_DENIED;
-                goto exit;
-            }
-
-    memset(&SecurityAttributes, 0, sizeof SecurityAttributes);
-    SecurityAttributes.nLength = sizeof SecurityAttributes;
-    SecurityAttributes.lpSecurityDescriptor = SecurityDescriptor;
-
-    MountHandle = CreateFileW(MountPoint,
-        FILE_WRITE_ATTRIBUTES,
-        FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
-        &SecurityAttributes,
-        CREATE_NEW,
-        FILE_ATTRIBUTE_DIRECTORY |
-            FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS | FILE_FLAG_DELETE_ON_CLOSE,
-        0);
-    if (INVALID_HANDLE_VALUE == MountHandle)
-    {
-        Result = FspNtStatusFromWin32(GetLastError());
-        goto exit;
-    }
-
-    VolumeNameLength = (USHORT)lstrlenW(VolumeName);
-    BackslashLength = 0 == VolumeNameLength || L'\\' != VolumeName[VolumeNameLength - 1];
-    VolumeNameLength *= sizeof(WCHAR);
-    BackslashLength *= sizeof(WCHAR);
-
-    ReparseDataLength = (USHORT)(
-        FIELD_OFFSET(REPARSE_DATA_BUFFER, MountPointReparseBuffer.PathBuffer) -
-        FIELD_OFFSET(REPARSE_DATA_BUFFER, MountPointReparseBuffer)) +
-        2 * (VolumeNameLength + BackslashLength + sizeof(WCHAR));
-    ReparseData = MemAlloc(REPARSE_DATA_BUFFER_HEADER_SIZE + ReparseDataLength);
-    if (0 == ReparseData)
-    {
-        Result = STATUS_INSUFFICIENT_RESOURCES;
-        goto exit;
-    }
-
-    ReparseData->ReparseTag = IO_REPARSE_TAG_MOUNT_POINT;
-    ReparseData->ReparseDataLength = ReparseDataLength;
-    ReparseData->Reserved = 0;
-    ReparseData->MountPointReparseBuffer.SubstituteNameOffset = 0;
-    ReparseData->MountPointReparseBuffer.SubstituteNameLength =
-        VolumeNameLength + BackslashLength;
-    ReparseData->MountPointReparseBuffer.PrintNameOffset =
-        ReparseData->MountPointReparseBuffer.SubstituteNameLength + sizeof(WCHAR);
-    ReparseData->MountPointReparseBuffer.PrintNameLength =
-        VolumeNameLength + BackslashLength;
-
-    PathBuffer = ReparseData->MountPointReparseBuffer.PathBuffer;
-    memcpy(PathBuffer, VolumeName, VolumeNameLength);
-    if (BackslashLength)
-        PathBuffer[VolumeNameLength / sizeof(WCHAR)] = L'\\';
-    PathBuffer[(VolumeNameLength + BackslashLength) / sizeof(WCHAR)] = L'\0';
-
-    PathBuffer = ReparseData->MountPointReparseBuffer.PathBuffer +
-        (ReparseData->MountPointReparseBuffer.PrintNameOffset) / sizeof(WCHAR);
-    memcpy(PathBuffer, VolumeName, VolumeNameLength);
-    if (BackslashLength)
-        PathBuffer[VolumeNameLength / sizeof(WCHAR)] = L'\\';
-    PathBuffer[(VolumeNameLength + BackslashLength) / sizeof(WCHAR)] = L'\0';
-
-    if (!DeviceIoControl(MountHandle, FSCTL_SET_REPARSE_POINT,
-        ReparseData, REPARSE_DATA_BUFFER_HEADER_SIZE + ReparseData->ReparseDataLength,
-        0, 0,
-        &Bytes, 0))
-    {
-        Result = FspNtStatusFromWin32(GetLastError());
-        goto exit;
-    }
-
-    *PMountHandle = MountHandle;
-
-    Result = STATUS_SUCCESS;
-
-exit:
-    if (!NT_SUCCESS(Result) && INVALID_HANDLE_VALUE != MountHandle)
-        CloseHandle(MountHandle);
-
-    MemFree(ReparseData);
-
-    return Result;
-}
-
 FSP_API NTSTATUS FspFileSystemSetMountPoint(FSP_FILE_SYSTEM *FileSystem, PWSTR MountPoint)
 {
     return FspFileSystemSetMountPointEx(FileSystem, MountPoint, 0);
@@ -402,105 +185,55 @@ FSP_API NTSTATUS FspFileSystemSetMountPointEx(FSP_FILE_SYSTEM *FileSystem, PWSTR
     if (0 != FileSystem->MountPoint)
         return STATUS_INVALID_PARAMETER;
 
+    FSP_MOUNT_DESC Desc;
+    int Size;
     NTSTATUS Result;
-    HANDLE MountHandle = 0;
+
+    memset(&Desc, 0, sizeof Desc);
+    Desc.VolumeHandle = FileSystem->VolumeHandle;
+    Desc.VolumeName = FileSystem->VolumeName;
+    Desc.Security = SecurityDescriptor;
 
     if (0 == MountPoint)
+        MountPoint = L"*:";
+
+    Size = (lstrlenW(MountPoint) + 1) * sizeof(WCHAR);
+    Desc.MountPoint = MemAlloc(Size);
+    if (0 == Desc.MountPoint)
     {
-        DWORD Drives;
-        WCHAR Drive;
-
-        MountPoint = MemAlloc(3 * sizeof(WCHAR));
-        if (0 == MountPoint)
-            return STATUS_INSUFFICIENT_RESOURCES;
-        MountPoint[1] = L':';
-        MountPoint[2] = L'\0';
-
-        Drives = GetLogicalDrives();
-        if (0 != Drives)
-        {
-            for (Drive = 'Z'; 'D' <= Drive; Drive--)
-                if (0 == (Drives & (1 << (Drive - 'A'))))
-                {
-                    MountPoint[0] = Drive;
-                    Result = FspFileSystemSetMountPoint_Drive(MountPoint, FileSystem->VolumeName,
-                        &MountHandle);
-                    if (NT_SUCCESS(Result))
-                        goto exit;
-                }
-            Result = STATUS_NO_SUCH_DEVICE;
-        }
-        else
-            Result = FspNtStatusFromWin32(GetLastError());
+        Result = STATUS_INSUFFICIENT_RESOURCES;
+        goto exit;
     }
-    else
-    {
-        PWSTR P;
-        ULONG L;
+    memcpy(Desc.MountPoint, MountPoint, Size);
 
-        L = (ULONG)((lstrlenW(MountPoint) + 1) * sizeof(WCHAR));
-
-        P = MemAlloc(L);
-        if (0 == P)
-            return STATUS_INSUFFICIENT_RESOURCES;
-        memcpy(P, MountPoint, L);
-        MountPoint = P;
-
-        if (FspPathIsDrive(MountPoint))
-            Result = FspFileSystemSetMountPoint_Drive(MountPoint, FileSystem->VolumeName,
-                &MountHandle);
-        else
-            Result = FspFileSystemSetMountPoint_Directory(MountPoint, FileSystem->VolumeName,
-                SecurityDescriptor, &MountHandle);
-    }
+    Result = FspMountSet(&Desc);
 
 exit:
     if (NT_SUCCESS(Result))
     {
-        FileSystem->MountPoint = MountPoint;
-        FileSystem->MountHandle = MountHandle;
+        FileSystem->MountPoint = Desc.MountPoint;
+        FileSystem->MountHandle = Desc.MountHandle;
     }
     else
-        MemFree(MountPoint);
+        MemFree(Desc.MountPoint);
 
     return Result;
 }
 
-static VOID FspFileSystemRemoveMountPoint_Drive(PWSTR MountPoint, PWSTR VolumeName, HANDLE MountHandle)
-{
-    BOOLEAN IsServiceContext = 0 != ((DWORD)(UINT_PTR)MountHandle & 1);
-    MountHandle = (HANDLE)(UINT_PTR)((DWORD)(UINT_PTR)MountHandle & ~1);
-    if (IsServiceContext)
-        /*
-         * If the current process is in the service context but not LocalSystem,
-         * ask the launcher to DefineDosDevice for us. This is because the launcher
-         * runs in the LocalSystem context and can remove global drives.
-         */
-        FspFileSystemLauncherDefineDosDevice(L'-', MountPoint, VolumeName);
-    else
-        DefineDosDeviceW(DDD_RAW_TARGET_PATH | DDD_REMOVE_DEFINITION | DDD_EXACT_MATCH_ON_REMOVE,
-            MountPoint, VolumeName);
-
-    if (0 != MountHandle)
-        FspNtClose(MountHandle);
-}
-
-static VOID FspFileSystemRemoveMountPoint_Directory(HANDLE MountHandle)
-{
-    /* directory is marked DELETE_ON_CLOSE */
-    CloseHandle(MountHandle);
-}
-
 FSP_API VOID FspFileSystemRemoveMountPoint(FSP_FILE_SYSTEM *FileSystem)
 {
     if (0 == FileSystem->MountPoint)
         return;
 
-    if (FspPathIsDrive(FileSystem->MountPoint))
-        FspFileSystemRemoveMountPoint_Drive(FileSystem->MountPoint, FileSystem->VolumeName,
-            FileSystem->MountHandle);
-    else
-        FspFileSystemRemoveMountPoint_Directory(FileSystem->MountHandle);
+    FSP_MOUNT_DESC Desc;
+
+    memset(&Desc, 0, sizeof Desc);
+    Desc.VolumeHandle = FileSystem->VolumeHandle;
+    Desc.VolumeName = FileSystem->VolumeName;
+    Desc.MountPoint = FileSystem->MountPoint;
+    Desc.MountHandle = FileSystem->MountHandle;
+
+    FspMountRemove(&Desc);
 
     MemFree(FileSystem->MountPoint);
     FileSystem->MountPoint = 0;
@@ -540,6 +273,13 @@ static DWORD WINAPI FspFileSystemDispatcherThread(PVOID FileSystem0)
     OperationContext.Response = Response;
     TlsSetValue(FspFileSystemTlsKey, &OperationContext);
 
+#if defined(FSP_CFG_REJECT_EARLY_IRP)
+    Result = FspFsctlTransact(FileSystem->VolumeHandle, 0, 0, 0, 0, FALSE);
+        /* send a Transact0 to inform the FSD that the dispatcher is ready */
+    if (!NT_SUCCESS(Result))
+        goto exit;
+#endif
+
     memset(Response, 0, sizeof *Response);
     for (;;)
     {
@@ -634,6 +374,11 @@ FSP_API NTSTATUS FspFileSystemStartDispatcher(FSP_FILE_SYSTEM *FileSystem, ULONG
 
         for (ThreadCount = 0; 0 != ProcessMask; ProcessMask >>= 1)
             ThreadCount += ProcessMask & 1;
+
+        if (ThreadCount < FspFileSystemDispatcherDefaultThreadCountMin)
+            ThreadCount = FspFileSystemDispatcherDefaultThreadCountMin;
+        else if (ThreadCount > FspFileSystemDispatcherDefaultThreadCountMax)
+            ThreadCount = FspFileSystemDispatcherDefaultThreadCountMax;
     }
 
     if (ThreadCount < FspFileSystemDispatcherThreadCountMin)

src/dll/fsctl.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fsctl.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -107,6 +107,20 @@ exit:
     return Result;
 }
 
+FSP_API NTSTATUS FspFsctlMakeMountdev(HANDLE VolumeHandle,
+    BOOLEAN Persistent, GUID *UniqueId)
+{
+    DWORD Bytes;
+
+    if (!DeviceIoControl(VolumeHandle,
+        FSP_FSCTL_MOUNTDEV,
+        &Persistent, sizeof Persistent, UniqueId, sizeof *UniqueId,
+        &Bytes, 0))
+        return FspNtStatusFromWin32(GetLastError());
+
+    return STATUS_SUCCESS;
+}
+
 FSP_API NTSTATUS FspFsctlTransact(HANDLE VolumeHandle,
     PVOID ResponseBuf, SIZE_T ResponseBufSize,
     PVOID RequestBuf, SIZE_T *PRequestBufSize,

src/dll/fsop.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fsop.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -242,7 +242,8 @@ NTSTATUS FspFileSystemCreateCheck(FSP_FILE_SYSTEM *FileSystem,
 static inline
 NTSTATUS FspFileSystemOpenCheck(FSP_FILE_SYSTEM *FileSystem,
     FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response,
-    BOOLEAN AllowTraverseCheck, PUINT32 PGrantedAccess)
+    BOOLEAN AllowTraverseCheck, PUINT32 PGrantedAccess,
+    PSECURITY_DESCRIPTOR *PSecurityDescriptor)
 {
     NTSTATUS Result;
     UINT32 GrantedAccess;
@@ -257,10 +258,11 @@ NTSTATUS FspFileSystemOpenCheck(FSP_FILE_SYSTEM *FileSystem,
      * requested in DesiredAccess.
      */
 
-    Result = FspAccessCheck(FileSystem, Request, FALSE, AllowTraverseCheck,
+    Result = FspAccessCheckEx(FileSystem, Request, FALSE, AllowTraverseCheck,
         Request->Req.Create.DesiredAccess |
             ((Request->Req.Create.CreateOptions & FILE_DELETE_ON_CLOSE) ? DELETE : 0),
-        &GrantedAccess);
+        &GrantedAccess,
+        Request->Req.Create.AcceptsSecurityDescriptor ? PSecurityDescriptor : 0);
     if (STATUS_REPARSE == Result)
         Result = FspFileSystemCallResolveReparsePoints(FileSystem, Request, Response, GrantedAccess);
     else if (NT_SUCCESS(Result))
@@ -391,21 +393,40 @@ NTSTATUS FspFileSystemRenameCheck(FSP_FILE_SYSTEM *FileSystem,
     return Result;
 }
 
+static inline
+VOID FspFileSystemOpCreate_SetOpenDescriptor(FSP_FSCTL_TRANSACT_RSP *Response,
+    PSECURITY_DESCRIPTOR OpenDescriptor)
+{
+    FSP_FSCTL_TRANSACT_BUF Buf;
+    Buf.Offset = FSP_FSCTL_DEFAULT_ALIGN_UP(Response->Rsp.Create.Opened.FileName.Size);
+    Buf.Size = (UINT16)GetSecurityDescriptorLength(OpenDescriptor);
+
+    if (FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX >= Buf.Offset + Buf.Size)
+    {
+        Response->Size += Buf.Offset + Buf.Size;
+        Response->Rsp.Create.Opened.SecurityDescriptor.Offset = Buf.Offset;
+        Response->Rsp.Create.Opened.SecurityDescriptor.Size = Buf.Size;
+        Response->Rsp.Create.Opened.HasSecurityDescriptor = 1;
+        memcpy(Response->Buffer + Buf.Offset, OpenDescriptor, Buf.Size);
+    }
+}
+
 static NTSTATUS FspFileSystemOpCreate_FileCreate(FSP_FILE_SYSTEM *FileSystem,
     FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
 {
     NTSTATUS Result;
     UINT32 GrantedAccess;
-    PSECURITY_DESCRIPTOR ParentDescriptor, ObjectDescriptor;
+    PSECURITY_DESCRIPTOR ParentDescriptor;
     FSP_FSCTL_TRANSACT_FULL_CONTEXT FullContext;
     FSP_FSCTL_OPEN_FILE_INFO OpenFileInfo;
+    PSECURITY_DESCRIPTOR OpenDescriptor = 0;
 
     Result = FspFileSystemCreateCheck(FileSystem, Request, Response, TRUE,
         &GrantedAccess, &ParentDescriptor);
     if (!NT_SUCCESS(Result) || STATUS_REPARSE == Result)
         return Result;
 
-    Result = FspCreateSecurityDescriptor(FileSystem, Request, ParentDescriptor, &ObjectDescriptor);
+    Result = FspCreateSecurityDescriptor(FileSystem, Request, ParentDescriptor, &OpenDescriptor);
     FspDeleteSecurityDescriptor(ParentDescriptor, FspAccessCheckEx);
     if (!NT_SUCCESS(Result))
         return Result;
@@ -415,13 +436,25 @@ static NTSTATUS FspFileSystemOpCreate_FileCreate(FSP_FILE_SYSTEM *FileSystem,
     memset(&OpenFileInfo, 0, sizeof OpenFileInfo);
     OpenFileInfo.NormalizedName = (PVOID)Response->Buffer;
     OpenFileInfo.NormalizedNameSize = FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX;
-    Result = FileSystem->Interface->Create(FileSystem,
-        (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
-        Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
-        AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
-    FspDeleteSecurityDescriptor(ObjectDescriptor, FspCreateSecurityDescriptor);
+    if (0 != FileSystem->Interface->CreateEx)
+        Result = FileSystem->Interface->CreateEx(FileSystem,
+            (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
+            Request->Req.Create.FileAttributes, OpenDescriptor, Request->Req.Create.AllocationSize,
+            0 != Request->Req.Create.Ea.Size ?
+                (PVOID)(Request->Buffer + Request->Req.Create.Ea.Offset) : 0,
+            Request->Req.Create.Ea.Size,
+            Request->Req.Create.EaIsReparsePoint,
+            AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
+    else
+        Result = FileSystem->Interface->Create(FileSystem,
+            (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
+            Request->Req.Create.FileAttributes, OpenDescriptor, Request->Req.Create.AllocationSize,
+            AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
     if (!NT_SUCCESS(Result))
+    {
+        FspDeleteSecurityDescriptor(OpenDescriptor, FspCreateSecurityDescriptor);
         return Result;
+    }
 
     if (FSP_FSCTL_TRANSACT_PATH_SIZEMAX >= OpenFileInfo.NormalizedNameSize)
     {
@@ -430,6 +463,12 @@ static NTSTATUS FspFileSystemOpCreate_FileCreate(FSP_FILE_SYSTEM *FileSystem,
         Response->Rsp.Create.Opened.FileName.Size = (UINT16)OpenFileInfo.NormalizedNameSize;
     }
 
+    if (0 != OpenDescriptor)
+    {
+        FspFileSystemOpCreate_SetOpenDescriptor(Response, OpenDescriptor);
+        FspDeleteSecurityDescriptor(OpenDescriptor, FspCreateSecurityDescriptor);
+    }
+
     Response->IoStatus.Information = FILE_CREATED;
     SetFileContext(Response->Rsp.Create.Opened, FullContext);
     Response->Rsp.Create.Opened.GrantedAccess = GrantedAccess;
@@ -445,8 +484,10 @@ static NTSTATUS FspFileSystemOpCreate_FileOpen(FSP_FILE_SYSTEM *FileSystem,
     UINT32 GrantedAccess;
     FSP_FSCTL_TRANSACT_FULL_CONTEXT FullContext;
     FSP_FSCTL_OPEN_FILE_INFO OpenFileInfo;
+    PSECURITY_DESCRIPTOR OpenDescriptor = 0;
 
-    Result = FspFileSystemOpenCheck(FileSystem, Request, Response, TRUE, &GrantedAccess);
+    Result = FspFileSystemOpenCheck(FileSystem, Request, Response, TRUE, &GrantedAccess,
+        &OpenDescriptor);
     if (!NT_SUCCESS(Result) || STATUS_REPARSE == Result)
         return Result;
 
@@ -459,7 +500,10 @@ static NTSTATUS FspFileSystemOpCreate_FileOpen(FSP_FILE_SYSTEM *FileSystem,
         (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
         AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
     if (!NT_SUCCESS(Result))
+    {
+        FspDeleteSecurityDescriptor(OpenDescriptor, FspAccessCheckEx);
         return Result;
+    }
 
     if (FSP_FSCTL_TRANSACT_PATH_SIZEMAX >= OpenFileInfo.NormalizedNameSize)
     {
@@ -468,6 +512,12 @@ static NTSTATUS FspFileSystemOpCreate_FileOpen(FSP_FILE_SYSTEM *FileSystem,
         Response->Rsp.Create.Opened.FileName.Size = (UINT16)OpenFileInfo.NormalizedNameSize;
     }
 
+    if (0 != OpenDescriptor)
+    {
+        FspFileSystemOpCreate_SetOpenDescriptor(Response, OpenDescriptor);
+        FspDeleteSecurityDescriptor(OpenDescriptor, FspAccessCheckEx);
+    }
+
     Response->IoStatus.Information = FILE_OPENED;
     SetFileContext(Response->Rsp.Create.Opened, FullContext);
     Response->Rsp.Create.Opened.GrantedAccess = GrantedAccess;
@@ -481,12 +531,14 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
 {
     NTSTATUS Result;
     UINT32 GrantedAccess;
-    PSECURITY_DESCRIPTOR ParentDescriptor, ObjectDescriptor;
+    PSECURITY_DESCRIPTOR ParentDescriptor;
     FSP_FSCTL_TRANSACT_FULL_CONTEXT FullContext;
     FSP_FSCTL_OPEN_FILE_INFO OpenFileInfo;
+    PSECURITY_DESCRIPTOR OpenDescriptor = 0;
     BOOLEAN Create = FALSE;
 
-    Result = FspFileSystemOpenCheck(FileSystem, Request, Response, TRUE, &GrantedAccess);
+    Result = FspFileSystemOpenCheck(FileSystem, Request, Response, TRUE, &GrantedAccess,
+        &OpenDescriptor);
     if (!NT_SUCCESS(Result) || STATUS_REPARSE == Result)
     {
         if (STATUS_OBJECT_NAME_NOT_FOUND != Result)
@@ -506,6 +558,9 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
             AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
         if (!NT_SUCCESS(Result))
         {
+            FspDeleteSecurityDescriptor(OpenDescriptor, FspAccessCheckEx);
+            OpenDescriptor = 0;
+
             if (STATUS_OBJECT_NAME_NOT_FOUND != Result)
                 return Result;
             Create = TRUE;
@@ -519,7 +574,7 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
         if (!NT_SUCCESS(Result) || STATUS_REPARSE == Result)
             return Result;
 
-        Result = FspCreateSecurityDescriptor(FileSystem, Request, ParentDescriptor, &ObjectDescriptor);
+        Result = FspCreateSecurityDescriptor(FileSystem, Request, ParentDescriptor, &OpenDescriptor);
         FspDeleteSecurityDescriptor(ParentDescriptor, FspAccessCheckEx);
         if (!NT_SUCCESS(Result))
             return Result;
@@ -529,13 +584,25 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
         memset(&OpenFileInfo, 0, sizeof OpenFileInfo);
         OpenFileInfo.NormalizedName = (PVOID)Response->Buffer;
         OpenFileInfo.NormalizedNameSize = FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX;
-        Result = FileSystem->Interface->Create(FileSystem,
-            (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
-            Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
-            AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
-        FspDeleteSecurityDescriptor(ObjectDescriptor, FspCreateSecurityDescriptor);
+        if (0 != FileSystem->Interface->CreateEx)
+            Result = FileSystem->Interface->CreateEx(FileSystem,
+                (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
+                Request->Req.Create.FileAttributes, OpenDescriptor, Request->Req.Create.AllocationSize,
+                0 != Request->Req.Create.Ea.Size ?
+                    (PVOID)(Request->Buffer + Request->Req.Create.Ea.Offset) : 0,
+                Request->Req.Create.Ea.Size,
+                Request->Req.Create.EaIsReparsePoint,
+                AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
+        else
+            Result = FileSystem->Interface->Create(FileSystem,
+                (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
+                Request->Req.Create.FileAttributes, OpenDescriptor, Request->Req.Create.AllocationSize,
+                AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
         if (!NT_SUCCESS(Result))
+        {
+            FspDeleteSecurityDescriptor(OpenDescriptor, FspCreateSecurityDescriptor);
             return Result;
+        }
     }
 
     if (FSP_FSCTL_TRANSACT_PATH_SIZEMAX >= OpenFileInfo.NormalizedNameSize)
@@ -545,6 +612,13 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
         Response->Rsp.Create.Opened.FileName.Size = (UINT16)OpenFileInfo.NormalizedNameSize;
     }
 
+    if (0 != OpenDescriptor)
+    {
+        FspFileSystemOpCreate_SetOpenDescriptor(Response, OpenDescriptor);
+        FspDeleteSecurityDescriptor(OpenDescriptor, Create ?
+            (NTSTATUS (*)())FspCreateSecurityDescriptor : (NTSTATUS (*)())FspAccessCheckEx);
+    }
+
     Response->IoStatus.Information = Create ? FILE_CREATED : FILE_OPENED;
     SetFileContext(Response->Rsp.Create.Opened, FullContext);
     Response->Rsp.Create.Opened.GrantedAccess = GrantedAccess;
@@ -645,10 +719,20 @@ static NTSTATUS FspFileSystemOpCreate_FileOverwriteIf(FSP_FILE_SYSTEM *FileSyste
         memset(&OpenFileInfo, 0, sizeof OpenFileInfo);
         OpenFileInfo.NormalizedName = (PVOID)Response->Buffer;
         OpenFileInfo.NormalizedNameSize = FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX;
-        Result = FileSystem->Interface->Create(FileSystem,
-            (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
-            Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
-            AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
+        if (0 != FileSystem->Interface->CreateEx)
+            Result = FileSystem->Interface->CreateEx(FileSystem,
+                (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
+                Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
+                0 != Request->Req.Create.Ea.Size ?
+                    (PVOID)(Request->Buffer + Request->Req.Create.Ea.Offset) : 0,
+                Request->Req.Create.Ea.Size,
+                Request->Req.Create.EaIsReparsePoint,
+                AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
+        else
+            Result = FileSystem->Interface->Create(FileSystem,
+                (PWSTR)Request->Buffer, Request->Req.Create.CreateOptions, GrantedAccess,
+                Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
+                AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
         FspDeleteSecurityDescriptor(ObjectDescriptor, FspCreateSecurityDescriptor);
         if (!NT_SUCCESS(Result))
             return Result;
@@ -676,7 +760,7 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenTargetDirectory(FSP_FILE_SYSTEM *F
     NTSTATUS Result;
     WCHAR Root[2] = L"\\";
     PWSTR Parent, Suffix;
-    UINT32 GrantedAccess;
+    UINT32 CreateOptions, GrantedAccess;
     FSP_FSCTL_TRANSACT_FULL_CONTEXT FullContext;
     FSP_FSCTL_OPEN_FILE_INFO OpenFileInfo;
     UINT32 Information;
@@ -691,8 +775,10 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenTargetDirectory(FSP_FILE_SYSTEM *F
     OpenFileInfo.NormalizedName = (PVOID)Response->Buffer;
     OpenFileInfo.NormalizedNameSize = FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX;
     FspPathSuffix((PWSTR)Request->Buffer, &Parent, &Suffix, Root);
+    CreateOptions =
+        (Request->Req.Create.CreateOptions | FILE_DIRECTORY_FILE) & ~FILE_NON_DIRECTORY_FILE;
     Result = FileSystem->Interface->Open(FileSystem,
-        Parent, Request->Req.Create.CreateOptions, GrantedAccess,
+        Parent, CreateOptions, GrantedAccess,
         AddrOfFileContext(FullContext), &OpenFileInfo.FileInfo);
     FspPathCombine((PWSTR)Request->Buffer, Suffix);
     if (!NT_SUCCESS(Result))
@@ -811,9 +897,9 @@ FSP_API NTSTATUS FspFileSystemOpCreate(FSP_FILE_SYSTEM *FileSystem,
 {
     NTSTATUS Result;
 
-    if (0 == FileSystem->Interface->Create ||
+    if ((0 == FileSystem->Interface->Create && 0 == FileSystem->Interface->CreateEx) ||
         0 == FileSystem->Interface->Open ||
-        0 == FileSystem->Interface->Overwrite)
+        (0 == FileSystem->Interface->Overwrite && 0 == FileSystem->Interface->OverwriteEx))
         return STATUS_INVALID_DEVICE_REQUEST;
 
     if (Request->Req.Create.OpenTargetDirectory)
@@ -856,16 +942,27 @@ FSP_API NTSTATUS FspFileSystemOpOverwrite(FSP_FILE_SYSTEM *FileSystem,
     NTSTATUS Result;
     FSP_FSCTL_FILE_INFO FileInfo;
 
-    if (0 == FileSystem->Interface->Overwrite)
+    if (0 == FileSystem->Interface->Overwrite && 0 == FileSystem->Interface->OverwriteEx)
         return STATUS_INVALID_DEVICE_REQUEST;
 
     memset(&FileInfo, 0, sizeof FileInfo);
-    Result = FileSystem->Interface->Overwrite(FileSystem,
-        (PVOID)ValOfFileContext(Request->Req.Overwrite),
-        Request->Req.Overwrite.FileAttributes,
-        Request->Req.Overwrite.Supersede,
-        Request->Req.Overwrite.AllocationSize,
-        &FileInfo);
+    if (0 != FileSystem->Interface->OverwriteEx)
+        Result = FileSystem->Interface->OverwriteEx(FileSystem,
+            (PVOID)ValOfFileContext(Request->Req.Overwrite),
+            Request->Req.Overwrite.FileAttributes,
+            Request->Req.Overwrite.Supersede,
+            Request->Req.Overwrite.AllocationSize,
+            0 != Request->Req.Overwrite.Ea.Size ?
+                (PVOID)(Request->Buffer + Request->Req.Overwrite.Ea.Offset) : 0,
+            Request->Req.Overwrite.Ea.Size,
+            &FileInfo);
+    else
+        Result = FileSystem->Interface->Overwrite(FileSystem,
+            (PVOID)ValOfFileContext(Request->Req.Overwrite),
+            Request->Req.Overwrite.FileAttributes,
+            Request->Req.Overwrite.Supersede,
+            Request->Req.Overwrite.AllocationSize,
+            &FileInfo);
     if (!NT_SUCCESS(Result))
     {
         if (0 != FileSystem->Interface->Close)
@@ -1091,6 +1188,49 @@ FSP_API NTSTATUS FspFileSystemOpSetInformation(FSP_FILE_SYSTEM *FileSystem,
     return STATUS_SUCCESS;
 }
 
+FSP_API NTSTATUS FspFileSystemOpQueryEa(FSP_FILE_SYSTEM *FileSystem,
+    FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
+{
+    NTSTATUS Result;
+    ULONG BytesTransferred;
+
+    if (0 == FileSystem->Interface->GetEa)
+        return STATUS_INVALID_DEVICE_REQUEST;
+
+    BytesTransferred = 0;
+    Result = FileSystem->Interface->GetEa(FileSystem,
+        (PVOID)ValOfFileContext(Request->Req.QueryEa),
+        (PVOID)Response->Buffer, FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX, &BytesTransferred);
+    if (!NT_SUCCESS(Result))
+        return STATUS_BUFFER_OVERFLOW != Result ? Result : STATUS_EA_LIST_INCONSISTENT;
+
+    Response->Size = (UINT16)(sizeof *Response + BytesTransferred);
+    Response->Rsp.QueryEa.Ea.Offset = 0;
+    Response->Rsp.QueryEa.Ea.Size = (UINT16)BytesTransferred;
+    return STATUS_SUCCESS;
+}
+
+FSP_API NTSTATUS FspFileSystemOpSetEa(FSP_FILE_SYSTEM *FileSystem,
+    FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
+{
+    NTSTATUS Result;
+    FSP_FSCTL_FILE_INFO FileInfo;
+
+    if (0 == FileSystem->Interface->SetEa)
+        return STATUS_INVALID_DEVICE_REQUEST;
+
+    memset(&FileInfo, 0, sizeof FileInfo);
+    Result = FileSystem->Interface->SetEa(FileSystem,
+        (PVOID)ValOfFileContext(Request->Req.SetEa),
+        (PVOID)Request->Buffer, Request->Req.SetEa.Ea.Size,
+        &FileInfo);
+    if (!NT_SUCCESS(Result))
+        return Result;
+
+    memcpy(&Response->Rsp.SetEa.FileInfo, &FileInfo, sizeof FileInfo);
+    return STATUS_SUCCESS;
+}
+
 FSP_API NTSTATUS FspFileSystemOpQueryVolumeInformation(FSP_FILE_SYSTEM *FileSystem,
     FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
 {
@@ -1608,9 +1748,15 @@ reparse_data_exit:
         return IO_REPARSE_TAG_SYMLINK != ReparseData->ReparseTag ?
             STATUS_IO_REPARSE_DATA_INVALID : STATUS_REPARSE_POINT_NOT_RESOLVED;
 
+    if (IO_REPARSE_TAG_MOUNT_POINT == ReparseData->ReparseTag)
+        RemainderPathSize = lstrlenW(RemainderPath) * sizeof(WCHAR);
+
     *PSize = ReparseDataSize;
     memcpy(Buffer, ReparseData, ReparseDataSize);
 
+    if (IO_REPARSE_TAG_MOUNT_POINT == ReparseData->ReparseTag)
+        OutputReparseData->Reserved = (USHORT)RemainderPathSize;
+
     PIoStatus->Status = STATUS_REPARSE;
     PIoStatus->Information = ReparseData->ReparseTag;
     return STATUS_REPARSE;
@@ -1672,3 +1818,51 @@ FSP_API BOOLEAN FspFileSystemAddStreamInfo(FSP_FSCTL_STREAM_INFO *StreamInfo,
 {
     return FspFileSystemAddXxxInfo(StreamInfo, Buffer, Length, PBytesTransferred);
 }
+
+FSP_API NTSTATUS FspFileSystemEnumerateEa(FSP_FILE_SYSTEM *FileSystem,
+    NTSTATUS (*EnumerateEa)(
+        FSP_FILE_SYSTEM *FileSystem, PVOID Context,
+        PFILE_FULL_EA_INFORMATION SingleEa),
+    PVOID Context,
+    PFILE_FULL_EA_INFORMATION Ea, ULONG EaLength)
+{
+    NTSTATUS Result = STATUS_SUCCESS;
+    for (PFILE_FULL_EA_INFORMATION EaEnd = (PVOID)((PUINT8)Ea + EaLength);
+        EaEnd > Ea; Ea = FSP_NEXT_EA(Ea, EaEnd))
+    {
+        Result = EnumerateEa(FileSystem, Context, Ea);
+        if (!NT_SUCCESS(Result))
+            break;
+    }
+    return Result;
+}
+
+FSP_API BOOLEAN FspFileSystemAddEa(PFILE_FULL_EA_INFORMATION SingleEa,
+    PFILE_FULL_EA_INFORMATION Ea, ULONG Length, PULONG PBytesTransferred)
+{
+    if (0 != SingleEa)
+    {
+        PUINT8 EaPtr = (PUINT8)Ea + FSP_FSCTL_ALIGN_UP(*PBytesTransferred, sizeof(ULONG));
+        PUINT8 EaEnd = (PUINT8)Ea + Length;
+        ULONG EaLen = FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName) +
+            SingleEa->EaNameLength + 1 + SingleEa->EaValueLength;
+
+        if (EaEnd < EaPtr + EaLen)
+            return FALSE;
+
+        memcpy(EaPtr, SingleEa, EaLen);
+        ((PFILE_FULL_EA_INFORMATION)EaPtr)->NextEntryOffset = FSP_FSCTL_ALIGN_UP(EaLen, sizeof(ULONG));
+        *PBytesTransferred = (ULONG)(EaPtr + EaLen - (PUINT8)Ea);
+    }
+    else if ((ULONG)FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName) <= *PBytesTransferred)
+    {
+        PUINT8 EaEnd = (PUINT8)Ea + *PBytesTransferred;
+
+        while (EaEnd > (PUINT8)Ea + Ea->NextEntryOffset)
+            Ea = (PVOID)((PUINT8)Ea + Ea->NextEntryOffset);
+
+        Ea->NextEntryOffset = 0;
+    }
+
+    return TRUE;
+}

src/dll/fuse/fuse.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse/fuse.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -54,6 +54,10 @@ static struct fuse_opt fsp_fuse_core_opts[] =
     FSP_FUSE_CORE_OPT("umask=%o", umask, 0),
     FSP_FUSE_CORE_OPT("create_umask=", set_create_umask, 1),
     FSP_FUSE_CORE_OPT("create_umask=%o", create_umask, 0),
+    FSP_FUSE_CORE_OPT("create_file_umask=", set_create_file_umask, 1),
+    FSP_FUSE_CORE_OPT("create_file_umask=%o", create_file_umask, 0),
+    FSP_FUSE_CORE_OPT("create_dir_umask=", set_create_dir_umask, 1),
+    FSP_FUSE_CORE_OPT("create_dir_umask=%o", create_dir_umask, 0),
     FSP_FUSE_CORE_OPT("uid=", set_uid, 1),
     FSP_FUSE_CORE_OPT("uid=%d", uid, 0),
     FSP_FUSE_CORE_OPT("gid=", set_gid, 1),
@@ -71,6 +75,9 @@ static struct fuse_opt fsp_fuse_core_opts[] =
     FSP_FUSE_CORE_OPT("rellinks", rellinks, 1),
     FSP_FUSE_CORE_OPT("norellinks", rellinks, 0),
 
+    FSP_FUSE_CORE_OPT("dothidden", dothidden, 1),
+    FSP_FUSE_CORE_OPT("nodothidden", dothidden, 0),
+
     FUSE_OPT_KEY("fstypename=", 'F'),
     FUSE_OPT_KEY("volname=", 'v'),
 
@@ -83,6 +90,8 @@ static struct fuse_opt fsp_fuse_core_opts[] =
     FSP_FUSE_CORE_OPT("FileInfoTimeout=%d", VolumeParams.FileInfoTimeout, 0),
     FSP_FUSE_CORE_OPT("DirInfoTimeout=", set_DirInfoTimeout, 1),
     FSP_FUSE_CORE_OPT("DirInfoTimeout=%d", VolumeParams.DirInfoTimeout, 0),
+    FSP_FUSE_CORE_OPT("EaTimeout=", set_EaTimeout, 1),
+    FSP_FUSE_CORE_OPT("EaTimeout=%d", VolumeParams.EaTimeout, 0),
     FSP_FUSE_CORE_OPT("VolumeInfoTimeout=", set_VolumeInfoTimeout, 1),
     FSP_FUSE_CORE_OPT("VolumeInfoTimeout=%d", VolumeParams.VolumeInfoTimeout, 0),
     FSP_FUSE_CORE_OPT("KeepFileCache=", set_KeepFileCache, 1),
@@ -93,6 +102,17 @@ static struct fuse_opt fsp_fuse_core_opts[] =
     FUSE_OPT_KEY("--VolumePrefix=", 'U'),
     FUSE_OPT_KEY("FileSystemName=", 'F'),
     FUSE_OPT_KEY("--FileSystemName=", 'F'),
+    FUSE_OPT_KEY("ExactFileSystemName=", 'E'),
+    FUSE_OPT_KEY("--ExactFileSystemName=", 'E'),
+
+    FSP_FUSE_CORE_OPT("UserName=", set_uid, 1),
+    FUSE_OPT_KEY("UserName=", 'u'),
+    FSP_FUSE_CORE_OPT("--UserName=", set_uid, 1),
+    FUSE_OPT_KEY("--UserName=", 'u'),
+    FSP_FUSE_CORE_OPT("GroupName=", set_gid, 1),
+    FUSE_OPT_KEY("GroupName=", 'g'),
+    FSP_FUSE_CORE_OPT("--GroupName=", set_gid, 1),
+    FUSE_OPT_KEY("--GroupName=", 'g'),
 
     FUSE_OPT_END,
 };
@@ -224,6 +244,43 @@ FSP_FUSE_API int fsp_fuse_is_lib_option(struct fsp_fuse_env *env,
     return fsp_fuse_opt_match(env, fsp_fuse_core_opts, opt);
 }
 
+static int fsp_fuse_username_to_uid(const char *username, int *puid)
+{
+    union
+    {
+        SID V;
+        UINT8 B[SECURITY_MAX_SID_SIZE];
+    } SidBuf;
+    char Name[256], Domn[256];
+    DWORD SidSize, NameSize, DomnSize;
+    SID_NAME_USE Use;
+    UINT32 Uid;
+    NTSTATUS Result;
+
+    *puid = 0;
+
+    NameSize = lstrlenA(username) + 1;
+    if (sizeof Name / sizeof Name[0] < NameSize)
+        return -1;
+    memcpy(Name, username, NameSize);
+    for (PSTR P = Name, EndP = P + NameSize; EndP > P; P++)
+        if ('+' == *P)
+            *P = '\\';
+
+    SidSize = sizeof SidBuf;
+    DomnSize = sizeof Domn / sizeof Domn[0];
+    if (!LookupAccountNameA(0, Name, &SidBuf, &SidSize, Domn, &DomnSize, &Use))
+        return -1;
+
+    Result = FspPosixMapSidToUid(&SidBuf, &Uid);
+    if (!NT_SUCCESS(Result))
+        return -1;
+
+    *puid = Uid;
+
+    return 0;
+}
+
 static int fsp_fuse_core_opt_proc(void *opt_data0, const char *arg, int key,
     struct fuse_args *outargs)
 {
@@ -239,9 +296,12 @@ static int fsp_fuse_core_opt_proc(void *opt_data0, const char *arg, int key,
             FSP_FUSE_LIBRARY_NAME " options:\n"
             "    -o umask=MASK              set file permissions (octal)\n"
             "    -o create_umask=MASK       set newly created file permissions (octal)\n"
+            "        -o create_file_umask=MASK      for files only\n"
+            "        -o create_dir_umask=MASK       for directories only\n"
             "    -o uid=N                   set file owner (-1 for mounting user id)\n"
             "    -o gid=N                   set file group (-1 for mounting user group)\n"
             "    -o rellinks                interpret absolute symlinks as volume relative\n"
+            "    -o dothidden               dot files have the Windows hidden file attrib\n"
             "    -o volname=NAME            set volume label\n"
             "    -o VolumePrefix=UNC        set UNC prefix (/Server/Share)\n"
             "        --VolumePrefix=UNC     set UNC prefix (\\Server\\Share)\n"
@@ -252,6 +312,7 @@ static int fsp_fuse_core_opt_proc(void *opt_data0, const char *arg, int key,
             FSP_FUSE_LIBRARY_NAME " advanced options:\n"
             "    -o FileInfoTimeout=N       metadata timeout (millis, -1 for data caching)\n"
             "    -o DirInfoTimeout=N        directory info timeout (millis)\n"
+            "    -o EaTimeout=N             extended attribute timeout (millis)\n"
             "    -o VolumeInfoTimeout=N     volume info timeout (millis)\n"
             "    -o KeepFileCache           do not discard cache when files are closed\n"
             "    -o ThreadCount             number of file system dispatcher threads\n"
@@ -308,6 +369,40 @@ static int fsp_fuse_core_opt_proc(void *opt_data0, const char *arg, int key,
             [sizeof opt_data->VolumeParams.FileSystemName / sizeof(WCHAR) - 1] = L'\0';
         memcpy(opt_data->VolumeParams.FileSystemName, L"FUSE-", 5 * sizeof(WCHAR));
         return 0;
+    case 'E':
+        if ('E' == arg[0])
+            arg += sizeof "ExactFileSystemName=" - 1;
+        else if ('E' == arg[2])
+            arg += sizeof "--ExactFileSystemName=" - 1;
+        if (0 == MultiByteToWideChar(CP_UTF8, 0, arg, -1,
+            opt_data->VolumeParams.FileSystemName,
+            sizeof opt_data->VolumeParams.FileSystemName / sizeof(WCHAR)))
+            return -1;
+        opt_data->VolumeParams.FileSystemName
+            [sizeof opt_data->VolumeParams.FileSystemName / sizeof(WCHAR) - 1] = L'\0';
+        return 0;
+    case 'u':
+        if ('U' == arg[0])
+            arg += sizeof "UserName=" - 1;
+        else if ('U' == arg[2])
+            arg += sizeof "--UserName=" - 1;
+        if (-1 == fsp_fuse_username_to_uid(arg, &opt_data->uid))
+        {
+            opt_data->username_to_uid_result = -1;
+            return -1;
+        }
+        return 0;
+    case 'g':
+        if ('G' == arg[0])
+            arg += sizeof "GroupName=" - 1;
+        else if ('G' == arg[2])
+            arg += sizeof "--GroupName=" - 1;
+        if (-1 == fsp_fuse_username_to_uid(arg, &opt_data->gid))
+        {
+            opt_data->username_to_uid_result = -1;
+            return -1;
+        }
+        return 0;
     case 'v':
         arg += sizeof "volname=" - 1;
         opt_data->VolumeLabelLength = (UINT16)(sizeof(WCHAR) *
@@ -352,7 +447,14 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
     opt_data.VolumeParams.FlushAndPurgeOnCleanup = TRUE;
 
     if (-1 == fsp_fuse_core_opt_parse(env, args, &opt_data, /*help=*/1))
+    {
+        if (-1 == opt_data.username_to_uid_result)
+        {
+            ErrorMessage = L": invalid user or group name.";
+            goto fail;
+        }
         return 0;
+    }
     if (opt_data.help)
         return 0;
 
@@ -392,6 +494,8 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
         opt_data.VolumeParams.FileInfoTimeout = opt_data.attr_timeout * 1000;
     if (opt_data.set_DirInfoTimeout)
         opt_data.VolumeParams.DirInfoTimeoutValid = 1;
+    if (opt_data.set_EaTimeout)
+        opt_data.VolumeParams.EaTimeoutValid = 1;
     if (opt_data.set_VolumeInfoTimeout)
         opt_data.VolumeParams.VolumeInfoTimeoutValid = 1;
     if (opt_data.set_KeepFileCache)
@@ -406,6 +510,9 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
     opt_data.VolumeParams.PostCleanupWhenModifiedOnly = TRUE;
     opt_data.VolumeParams.PassQueryDirectoryFileName = TRUE;
     opt_data.VolumeParams.DeviceControl = TRUE;
+#if defined(FSP_CFG_REJECT_EARLY_IRP)
+    opt_data.VolumeParams.RejectIrpPriorToTransact0 = TRUE;
+#endif
     opt_data.VolumeParams.UmFileContextIsUserContext2 = TRUE;
     if (L'\0' == opt_data.VolumeParams.FileSystemName[0])
         memcpy(opt_data.VolumeParams.FileSystemName, L"FUSE", 5 * sizeof(WCHAR));
@@ -417,9 +524,12 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
     f->env = env;
     f->set_umask = opt_data.set_umask; f->umask = opt_data.umask;
     f->set_create_umask = opt_data.set_create_umask; f->create_umask = opt_data.create_umask;
+    f->set_create_file_umask = opt_data.set_create_file_umask; f->create_file_umask = opt_data.create_file_umask;
+    f->set_create_dir_umask = opt_data.set_create_dir_umask; f->create_dir_umask = opt_data.create_dir_umask;
     f->set_uid = opt_data.set_uid; f->uid = opt_data.uid;
     f->set_gid = opt_data.set_gid; f->gid = opt_data.gid;
     f->rellinks = opt_data.rellinks;
+    f->dothidden = opt_data.dothidden;
     f->ThreadCount = opt_data.ThreadCount;
     memcpy(&f->ops, ops, opsize);
     f->data = data;

src/dll/fuse/fuse_compat.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse/fuse_compat.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/fuse/fuse_intf.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse/fuse_intf.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -354,6 +354,7 @@ static inline UINT32 fsp_fuse_intf_MapFlagsToFileAttributes(uint32_t flags)
     return FileAttributes;
 }
 
+#define FUSE_FILE_INFO(IsDirectory, fi) ((IsDirectory) ? 0 : (fi))
 #define fsp_fuse_intf_GetFileInfoEx(FileSystem, PosixPath, fi, PUid, PGid, PMode, FileInfo)\
     fsp_fuse_intf_GetFileInfoFunnel(FileSystem, PosixPath, fi, 0, PUid, PGid, PMode, 0, FileInfo)
 static NTSTATUS fsp_fuse_intf_GetFileInfoFunnel(FSP_FILE_SYSTEM *FileSystem,
@@ -429,6 +430,15 @@ static NTSTATUS fsp_fuse_intf_GetFileInfoFunnel(FSP_FILE_SYSTEM *FileSystem,
     }
     if (StatEx)
         FileInfo->FileAttributes |= fsp_fuse_intf_MapFlagsToFileAttributes(stbuf.st_flags);
+    if (f->dothidden)
+    {
+        const char *basename = PosixPath;
+        for (const char *p = PosixPath; '\0' != *p; p++)
+            if ('/' == *p)
+                basename = p + 1;
+        if ('.' == basename[0])
+            FileInfo->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
+    }
     FileInfo->FileSize = stbuf.st_size;
     FileInfo->AllocationSize =
         (FileInfo->FileSize + AllocationUnit - 1) / AllocationUnit * AllocationUnit;
@@ -438,6 +448,9 @@ static NTSTATUS fsp_fuse_intf_GetFileInfoFunnel(FSP_FILE_SYSTEM *FileSystem,
     FspPosixUnixTimeToFileTime((void *)&stbuf.st_ctim, &FileInfo->ChangeTime);
     FileInfo->IndexNumber = stbuf.st_ino;
 
+    FileInfo->HardLinks = 0;
+    FileInfo->EaSize = 0;
+
     return STATUS_SUCCESS;
 }
 
@@ -666,6 +679,9 @@ static NTSTATUS fsp_fuse_intf_GetReparsePointEx(FSP_FILE_SYSTEM *FileSystem,
 static NTSTATUS fsp_fuse_intf_GetReparsePointByName(
     FSP_FILE_SYSTEM *FileSystem, PVOID Context,
     PWSTR FileName, BOOLEAN IsDirectory, PVOID Buffer, PSIZE_T PSize);
+static NTSTATUS fsp_fuse_intf_SetEaEntry(
+    FSP_FILE_SYSTEM *FileSystem, PVOID Context,
+    PFILE_FULL_EA_INFORMATION SingleEa);
 
 static NTSTATUS fsp_fuse_intf_GetVolumeInfo(FSP_FILE_SYSTEM *FileSystem,
     FSP_FSCTL_VOLUME_INFO *VolumeInfo)
@@ -737,6 +753,7 @@ exit:
 static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
     PWSTR FileName, UINT32 CreateOptions, UINT32 GrantedAccess,
     UINT32 FileAttributes, PSECURITY_DESCRIPTOR SecurityDescriptor, UINT64 AllocationSize,
+    PVOID ExtraBuffer, ULONG ExtraLength, BOOLEAN ExtraBufferIsReparsePoint,
     PVOID *PFileDesc, FSP_FSCTL_FILE_INFO *FileInfo)
 {
     struct fuse *f = FileSystem->UserContext;
@@ -750,6 +767,25 @@ static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
     int err;
     NTSTATUS Result;
 
+    if (0 != ExtraBuffer)
+    {
+        if (!ExtraBufferIsReparsePoint)
+        {
+            if (0 == f->ops.listxattr || 0 == f->ops.getxattr ||
+                0 == f->ops.setxattr || 0 == f->ops.removexattr)
+            {
+                Result = STATUS_EAS_NOT_SUPPORTED;
+                goto exit;
+            }
+        }
+        else
+        {
+            /* !!!: revisit */
+            Result = STATUS_INVALID_PARAMETER;
+            goto exit;
+        }
+    }
+
     filedesc = MemAlloc(sizeof *filedesc);
     if (0 == filedesc)
     {
@@ -768,8 +804,22 @@ static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
             goto exit;
     }
     Mode &= ~context->umask;
-    if (f->set_create_umask)
-        Mode = 0777 & ~f->create_umask;
+    if (CreateOptions & FILE_DIRECTORY_FILE)
+    {
+        if (f->set_create_dir_umask)
+            Mode = 0777 & ~f->create_dir_umask;
+        else
+        if (f->set_create_umask)
+            Mode = 0777 & ~f->create_umask;
+    }
+    else
+    {
+        if (f->set_create_file_umask)
+            Mode = 0777 & ~f->create_file_umask;
+        else
+        if (f->set_create_umask)
+            Mode = 0777 & ~f->create_umask;
+    }
 
     memset(&fi, 0, sizeof fi);
     if ('C' == f->env->environment) /* Cygwin */
@@ -849,6 +899,22 @@ static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
             goto exit;
     }
 
+    if (0 != ExtraBuffer)
+    {
+        if (!ExtraBufferIsReparsePoint)
+        {
+            Result = FspFileSystemEnumerateEa(FileSystem,
+                fsp_fuse_intf_SetEaEntry, contexthdr->PosixPath, ExtraBuffer, ExtraLength);
+            if (!NT_SUCCESS(Result))
+                goto exit;
+        }
+        else
+        {
+            /* !!!: revisit: WslFeatures, GetFileInfoFunnel, GetReparsePointEx, SetReparsePoint */
+            Result = STATUS_INVALID_PARAMETER;
+            goto exit;
+        }
+    }
     /*
      * Ignore fuse_file_info::direct_io, fuse_file_info::keep_cache.
      * NOTE: Originally WinFsp dit not support disabling the cache manager
@@ -857,7 +923,8 @@ static NTSTATUS fsp_fuse_intf_Create(FSP_FILE_SYSTEM *FileSystem,
      * Ignore fuse_file_info::nonseekable.
      */
 
-    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, contexthdr->PosixPath, &fi,
+    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, contexthdr->PosixPath,
+        FUSE_FILE_INFO(CreateOptions & FILE_DIRECTORY_FILE, &fi),
         &Uid, &Gid, &Mode, &FileInfoBuf);
     if (!NT_SUCCESS(Result))
         goto exit;
@@ -959,6 +1026,18 @@ static NTSTATUS fsp_fuse_intf_Open(FSP_FILE_SYSTEM *FileSystem,
     }
     else
     {
+        /*
+         * Some Windows applications (notably Go programs) specify FILE_APPEND_DATA without
+         * FILE_WRITE_DATA when opening files for appending. This caused the WinFsp-FUSE layer
+         * to erroneously pass O_RDONLY to the FUSE file system in such cases. We add a test
+         * for FILE_APPEND_DATA to ensure that either O_WRONLY or O_RDWR is specified.
+         */
+        if (GrantedAccess & FILE_APPEND_DATA)
+        {
+            if (fi.flags == 0)
+                fi.flags = 1; /* need O_WRONLY as a bare minimum in order to append */
+        }
+
         if (0 != f->ops.open)
         {
             err = f->ops.open(contexthdr->PosixPath, &fi);
@@ -1001,6 +1080,7 @@ exit:
 
 static NTSTATUS fsp_fuse_intf_Overwrite(FSP_FILE_SYSTEM *FileSystem,
     PVOID FileDesc, UINT32 FileAttributes, BOOLEAN ReplaceFileAttributes, UINT64 AllocationSize,
+    PFILE_FULL_EA_INFORMATION Ea, ULONG EaLength,
     FSP_FSCTL_FILE_INFO *FileInfo)
 {
     struct fuse *f = FileSystem->UserContext;
@@ -1013,6 +1093,29 @@ static NTSTATUS fsp_fuse_intf_Overwrite(FSP_FILE_SYSTEM *FileSystem,
     if (filedesc->IsDirectory || filedesc->IsReparsePoint)
         return STATUS_ACCESS_DENIED;
 
+    if (0 != Ea)
+    {
+        char names[3 * 1024];
+        int namesize;
+
+        if (0 == f->ops.listxattr || 0 == f->ops.getxattr ||
+            0 == f->ops.setxattr || 0 == f->ops.removexattr)
+            return STATUS_EAS_NOT_SUPPORTED;
+
+        namesize = f->ops.listxattr(filedesc->PosixPath, names, sizeof names);
+        if (0 < namesize)
+            for (char *p = names, *endp = p + namesize; endp > p; p += namesize)
+            {
+                namesize = lstrlenA(p) + 1;
+                f->ops.removexattr(filedesc->PosixPath, p);
+            }
+
+        Result = FspFileSystemEnumerateEa(FileSystem,
+            fsp_fuse_intf_SetEaEntry, filedesc->PosixPath, Ea, EaLength);
+        if (!NT_SUCCESS(Result))
+            return Result;
+    }
+
     if (0 != f->ops.ftruncate)
     {
         memset(&fi, 0, sizeof fi);
@@ -1048,7 +1151,8 @@ static NTSTATUS fsp_fuse_intf_Overwrite(FSP_FILE_SYSTEM *FileSystem,
             return Result;
     }
 
-    return fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi,
+    return fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
         &Uid, &Gid, &Mode, FileInfo);
 }
 
@@ -1179,7 +1283,8 @@ static NTSTATUS fsp_fuse_intf_Write(FSP_FILE_SYSTEM *FileSystem,
     fi.flags = filedesc->OpenFlags;
     fi.fh = filedesc->FileHandle;
 
-    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi,
+    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
         &Uid, &Gid, &Mode, &FileInfoBuf);
     if (!NT_SUCCESS(Result))
         return Result;
@@ -1259,7 +1364,8 @@ static NTSTATUS fsp_fuse_intf_Flush(FSP_FILE_SYSTEM *FileSystem,
     if (!NT_SUCCESS(Result))
         return Result;
 
-    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi,
+    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
         &Uid, &Gid, &Mode, &FileInfoBuf);
     if (!NT_SUCCESS(Result))
         return Result;
@@ -1282,7 +1388,8 @@ static NTSTATUS fsp_fuse_intf_GetFileInfo(FSP_FILE_SYSTEM *FileSystem,
     fi.flags = filedesc->OpenFlags;
     fi.fh = filedesc->FileHandle;
 
-    return fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi,
+    return fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
         &Uid, &Gid, &Mode, FileInfo);
 }
 
@@ -1320,7 +1427,8 @@ static NTSTATUS fsp_fuse_intf_SetBasicInfo(FSP_FILE_SYSTEM *FileSystem,
     {
         if (0 == LastAccessTime || 0 == LastWriteTime)
         {
-            Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi,
+            Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+                FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
                 &Uid, &Gid, &Mode, &FileInfoBuf);
             if (!NT_SUCCESS(Result))
                 return Result;
@@ -1367,7 +1475,8 @@ static NTSTATUS fsp_fuse_intf_SetBasicInfo(FSP_FILE_SYSTEM *FileSystem,
             return Result;
     }
 
-    return fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi,
+    return fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
         &Uid, &Gid, &Mode, FileInfo);
 }
 
@@ -1394,7 +1503,8 @@ static NTSTATUS fsp_fuse_intf_SetFileSize(FSP_FILE_SYSTEM *FileSystem,
     fi.flags = filedesc->OpenFlags;
     fi.fh = filedesc->FileHandle;
 
-    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi,
+    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
         &Uid, &Gid, &Mode, &FileInfoBuf);
     if (!NT_SUCCESS(Result))
         return Result;
@@ -1541,7 +1651,8 @@ static NTSTATUS fsp_fuse_intf_GetSecurity(FSP_FILE_SYSTEM *FileSystem,
     fi.flags = filedesc->OpenFlags;
     fi.fh = filedesc->FileHandle;
 
-    return fsp_fuse_intf_GetSecurityEx(FileSystem, filedesc->PosixPath, &fi,
+    return fsp_fuse_intf_GetSecurityEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
         &FileAttributes, SecurityDescriptorBuf, PSecurityDescriptorSize);
 }
 
@@ -1565,8 +1676,9 @@ static NTSTATUS fsp_fuse_intf_SetSecurity(FSP_FILE_SYSTEM *FileSystem,
     fi.flags = filedesc->OpenFlags;
     fi.fh = filedesc->FileHandle;
 
-    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi, &Uid, &Gid, &Mode,
-        &FileInfo);
+    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
+        &Uid, &Gid, &Mode, &FileInfo);
     if (!NT_SUCCESS(Result))
         goto exit;
 
@@ -1622,6 +1734,21 @@ exit:
     return Result;
 }
 
+static VOID fsp_fuse_intf_LogBadDirInfo(
+    const char *PosixPath, const char *PosixName, const char *Message)
+{
+    static LONG Count = 0;
+    ULONG NewCount;
+
+    NewCount = (ULONG)InterlockedIncrement(&Count);
+
+    /* log only the first 5 such warnings to avoid warning overload */
+    if (5 >= NewCount)
+        FspDebugLog("%S[TID=%04lx]: WARN: readdir(\"%s\"): name=\"%s\": %s\n",
+            FspDiagIdent(), GetCurrentThreadId(),
+            PosixPath, PosixName, Message);
+}
+
 /* !static: used by fuse2to3 */
 int fsp_fuse_intf_AddDirInfo(void *buf, const char *name,
     const struct fuse_stat *stbuf, fuse_off_t off)
@@ -1647,13 +1774,19 @@ int fsp_fuse_intf_AddDirInfo(void *buf, const char *name,
 
     SizeA = lstrlenA(name);
     if (SizeA > 255)
-        /* ignore bad filenames; should we return error code? */
+    {
+        fsp_fuse_intf_LogBadDirInfo(filedesc->PosixPath, name,
+            "too long");
         return 0;
+    }
 
     SizeW = MultiByteToWideChar(CP_UTF8, 0, name, SizeA, DirInfo->FileNameBuf, 255);
     if (0 == SizeW)
-        /* ignore bad filenames; should we return error code? */
+    {
+        fsp_fuse_intf_LogBadDirInfo(filedesc->PosixPath, name,
+            "MultiByteToWideChar failed");
         return 0;
+    }
 
     memset(DirInfo, 0, sizeof *DirInfo);
     DirInfo->Size = (UINT16)(sizeof(FSP_FSCTL_DIR_INFO) + SizeW * sizeof(WCHAR));
@@ -1664,7 +1797,7 @@ int fsp_fuse_intf_AddDirInfo(void *buf, const char *name,
         UINT32 Uid, Gid, Mode;
         NTSTATUS Result0;
 
-        Result0 = fsp_fuse_intf_GetFileInfoFunnel(dh->FileSystem, 0, 0, stbuf,
+        Result0 = fsp_fuse_intf_GetFileInfoFunnel(dh->FileSystem, name, 0, stbuf,
             &Uid, &Gid, &Mode, 0, &DirInfo->FileInfo);
         if (NT_SUCCESS(Result0))
             DirInfo->Padding[0] = 1; /* HACK: remember that the FileInfo is valid */
@@ -1754,7 +1887,12 @@ static NTSTATUS fsp_fuse_intf_FixDirInfo(FSP_FILE_SYSTEM *FileSystem,
             Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, PosixPath, 0,
                 &Uid, &Gid, &Mode, &DirInfo->FileInfo);
             if (!NT_SUCCESS(Result))
-                goto exit;
+            {
+                /* mark the directory buffer entry as invalid */
+                *Index = FspFileSystemDirectoryBufferEntryInvalid;
+                fsp_fuse_intf_LogBadDirInfo(filedesc->PosixPath, PosixName,
+                    "getattr failed");
+            }
 
             if (0 != PosixPathEnd)
                 *PosixPathEnd = SavedPathChar;
@@ -1924,7 +2062,9 @@ static NTSTATUS fsp_fuse_intf_GetReparsePoint(FSP_FILE_SYSTEM *FileSystem,
     fi.flags = filedesc->OpenFlags;
     fi.fh = filedesc->FileHandle;
 
-    return fsp_fuse_intf_GetReparsePointEx(FileSystem, filedesc->PosixPath, &fi, Buffer, PSize);
+    return fsp_fuse_intf_GetReparsePointEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
+        Buffer, PSize);
 }
 
 static NTSTATUS fsp_fuse_intf_SetReparsePoint(FSP_FILE_SYSTEM *FileSystem,
@@ -1995,7 +2135,8 @@ static NTSTATUS fsp_fuse_intf_SetReparsePoint(FSP_FILE_SYSTEM *FileSystem,
     fi.flags = filedesc->OpenFlags;
     fi.fh = filedesc->FileHandle;
 
-    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath, &fi,
+    Result = fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
         &Uid, &Gid, &Mode, &FileInfo);
     if (!NT_SUCCESS(Result))
         return Result;
@@ -2173,14 +2314,114 @@ static NTSTATUS fsp_fuse_intf_Control(FSP_FILE_SYSTEM *FileSystem,
     return fsp_fuse_ntstatus_from_errno(f->env, err);
 }
 
+static NTSTATUS fsp_fuse_intf_GetEa(FSP_FILE_SYSTEM *FileSystem,
+    PVOID FileDesc,
+    PFILE_FULL_EA_INFORMATION Ea0, ULONG EaLength, PULONG PBytesTransferred)
+{
+    struct fuse *f = FileSystem->UserContext;
+    struct fsp_fuse_file_desc *filedesc = FileDesc;
+    char names[3 * 1024];
+    int namesize, valuesize;
+    PFILE_FULL_EA_INFORMATION Ea = Ea0, PrevEa = 0;
+    PUINT8 EaEnd = (PUINT8)Ea + EaLength, EaValue;
+
+    if (0 == f->ops.listxattr || 0 == f->ops.getxattr)
+        return STATUS_INVALID_DEVICE_REQUEST;
+
+    namesize = f->ops.listxattr(filedesc->PosixPath, names, sizeof names);
+    if (0 >= namesize)
+    {
+        *PBytesTransferred = 0;
+        return fsp_fuse_ntstatus_from_errno(f->env, namesize);
+    }
+
+    for (char *p = names, *endp = p + namesize; endp > p; p += namesize)
+    {
+        namesize = lstrlenA(p) + 1;
+
+        EaValue = (PUINT8)Ea + FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName) + namesize;
+        if (EaValue >= EaEnd)
+            /* if there is no space (at least 1 byte) for a value bail out */
+            break;
+
+        valuesize = f->ops.getxattr(filedesc->PosixPath, p, EaValue, EaEnd - EaValue);
+        if (0 >= valuesize)
+            continue;
+
+        Ea->NextEntryOffset = 0;
+        Ea->Flags = 0;
+        Ea->EaNameLength = namesize - 1;
+        Ea->EaValueLength = valuesize;
+        memcpy(Ea->EaName, p, namesize);
+
+        if (0 != PrevEa)
+            PrevEa->NextEntryOffset = (ULONG)((PUINT8)Ea - (PUINT8)PrevEa);
+        PrevEa = Ea;
+
+        *PBytesTransferred = (ULONG)((PUINT8)EaValue - (PUINT8)Ea0 + valuesize);
+        Ea = (PVOID)((PUINT8)Ea +
+            FSP_FSCTL_ALIGN_UP(
+                FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName) + namesize + valuesize,
+                sizeof(ULONG)));
+    }
+
+    return STATUS_SUCCESS;
+}
+
+static NTSTATUS fsp_fuse_intf_SetEaEntry(
+    FSP_FILE_SYSTEM *FileSystem, PVOID Context,
+    PFILE_FULL_EA_INFORMATION SingleEa)
+{
+    struct fuse *f = FileSystem->UserContext;
+    const char *PosixPath = Context;
+    int err;
+
+    if (0 != SingleEa->EaValueLength)
+        err = f->ops.setxattr(PosixPath,
+            SingleEa->EaName, SingleEa->EaName + SingleEa->EaNameLength + 1, SingleEa->EaValueLength, 0);
+    else
+        err = f->ops.removexattr(PosixPath,
+            SingleEa->EaName);
+
+    return fsp_fuse_ntstatus_from_errno(f->env, err);
+}
+
+static NTSTATUS fsp_fuse_intf_SetEa(FSP_FILE_SYSTEM *FileSystem,
+    PVOID FileDesc,
+    PFILE_FULL_EA_INFORMATION Ea, ULONG EaLength,
+    FSP_FSCTL_FILE_INFO *FileInfo)
+{
+    struct fuse *f = FileSystem->UserContext;
+    struct fsp_fuse_file_desc *filedesc = FileDesc;
+    UINT32 Uid, Gid, Mode;
+    struct fuse_file_info fi;
+    NTSTATUS Result;
+
+    if (0 == f->ops.setxattr || 0 == f->ops.removexattr)
+        return STATUS_INVALID_DEVICE_REQUEST;
+
+    Result = FspFileSystemEnumerateEa(FileSystem,
+        fsp_fuse_intf_SetEaEntry, filedesc->PosixPath, Ea, EaLength);
+    if (!NT_SUCCESS(Result))
+        return Result;
+
+    memset(&fi, 0, sizeof fi);
+    fi.flags = filedesc->OpenFlags;
+    fi.fh = filedesc->FileHandle;
+
+    return fsp_fuse_intf_GetFileInfoEx(FileSystem, filedesc->PosixPath,
+        FUSE_FILE_INFO(filedesc->IsDirectory, &fi),
+        &Uid, &Gid, &Mode, FileInfo);
+}
+
 FSP_FILE_SYSTEM_INTERFACE fsp_fuse_intf =
 {
     fsp_fuse_intf_GetVolumeInfo,
     fsp_fuse_intf_SetVolumeLabel,
     fsp_fuse_intf_GetSecurityByName,
-    fsp_fuse_intf_Create,
+    0,
     fsp_fuse_intf_Open,
-    fsp_fuse_intf_Overwrite,
+    0,
     fsp_fuse_intf_Cleanup,
     fsp_fuse_intf_Close,
     fsp_fuse_intf_Read,
@@ -2201,6 +2442,11 @@ FSP_FILE_SYSTEM_INTERFACE fsp_fuse_intf =
     0,
     fsp_fuse_intf_GetDirInfoByName,
     fsp_fuse_intf_Control,
+    0,
+    fsp_fuse_intf_Create,
+    fsp_fuse_intf_Overwrite,
+    fsp_fuse_intf_GetEa,
+    fsp_fuse_intf_SetEa,
 };
 
 /*

src/dll/fuse/fuse_loop.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse/fuse_loop.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -160,6 +160,9 @@ static NTSTATUS fsp_fuse_loop_start(struct fuse *f)
         err = f->ops.readlink("/", buf, sizeof buf);
         f->has_symlinks = -ENOSYS_(f->env) != err;
     }
+    if (0 != f->ops.listxattr && 0 != f->ops.getxattr &&
+        0 != f->ops.setxattr && 0 != f->ops.removexattr)
+        f->VolumeParams.ExtendedAttributes = 1;
 
     /* the FSD does not currently limit these VolumeParams fields; do so here! */
     if (f->VolumeParams.SectorSize < FSP_FUSE_SECTORSIZE_MIN ||

src/dll/fuse/fuse_main.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse/fuse_main.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/fuse/fuse_opt.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse/fuse_opt.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -216,11 +216,13 @@ static int fsp_fuse_opt_call_proc(struct fsp_fuse_env *env,
             goto exit;
     }
 
+    result = 0;
+
 exit:
     if (0 != fullarg)
         env->memfree(fullarg);
 
-    return 0;
+    return result;
 }
 
 static int fsp_fuse_opt_process_arg(struct fsp_fuse_env *env,

src/dll/fuse/library.h

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse/library.h
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -50,9 +50,12 @@ struct fuse
     struct fsp_fuse_env *env;
     int set_umask, umask;
     int set_create_umask, create_umask;
+    int set_create_file_umask, create_file_umask;
+    int set_create_dir_umask, create_dir_umask;
     int set_uid, uid;
     int set_gid, gid;
     int rellinks;
+    int dothidden;
     unsigned ThreadCount;
     struct fuse_operations ops;
     void *data;
@@ -137,12 +140,16 @@ struct fsp_fuse_core_opt_data
     HANDLE DebugLogHandle;
     int set_umask, umask,
         set_create_umask, create_umask,
-        set_uid, uid,
+        set_create_file_umask, create_file_umask,
+        set_create_dir_umask, create_dir_umask,
+        set_uid, uid, username_to_uid_result,
         set_gid, gid,
         set_attr_timeout, attr_timeout,
-        rellinks;
+        rellinks,
+        dothidden;
     int set_FileInfoTimeout,
         set_DirInfoTimeout,
+        set_EaTimeout,
         set_VolumeInfoTimeout,
         set_KeepFileCache;
     unsigned ThreadCount;

src/dll/fuse3/fuse2to3.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse3/fuse2to3.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/fuse3/fuse3.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse3/fuse3.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/fuse3/fuse3_compat.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse/fuse3_compat.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/fuse3/library.h

@@ -1,7 +1,7 @@
 /**
  * @file dll/fuse3/library.h
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/launch.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/launch.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -271,9 +271,11 @@ FSP_API NTSTATUS FspLaunchRegSetRecord(
         SETFIELD(RunAs);
         SETFIELD(Security);
         SETFIELD(AuthPackage);
+        SETFIELD(Stderr);
         SETFIELDI(JobControl, ~0); /* JobControl default is 1; but we treat as without default */
         SETFIELDI(Credentials, 0);
         SETFIELDI(AuthPackageId, 0);
+        SETFIELDI(Recovery, 0);
     }
     else
     {
@@ -423,9 +425,11 @@ FSP_API NTSTATUS FspLaunchRegGetRecord(
     GETFIELD(RunAs);
     GETFIELD(Security);
     GETFIELD(AuthPackage);
+    GETFIELD(Stderr);
     GETFIELDI(JobControl);
     GETFIELDI(Credentials);
     GETFIELDI(AuthPackageId);
+    GETFIELDI(Recovery);
 
     if (0 == Record->Executable)
     {
@@ -456,9 +460,12 @@ FSP_API NTSTATUS FspLaunchRegGetRecord(
         (PVOID)(Record->Buffer + ((PUINT8)RecordBuf.Security - RegBuf)) : 0;
     Record->AuthPackage = 0 != RecordBuf.AuthPackage ?
         (PVOID)(Record->Buffer + ((PUINT8)RecordBuf.AuthPackage - RegBuf)) : 0;
+    Record->Stderr = 0 != RecordBuf.Stderr ?
+        (PVOID)(Record->Buffer + ((PUINT8)RecordBuf.Stderr - RegBuf)) : 0;
     Record->JobControl = RecordBuf.JobControl;
     Record->Credentials = RecordBuf.Credentials;
     Record->AuthPackageId = RecordBuf.AuthPackageId;
+    Record->Recovery = RecordBuf.Recovery;
 
     *PRecord = Record;
     Result = STATUS_SUCCESS;

src/dll/library.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/library.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/library.h

@@ -1,7 +1,7 @@
 /**
  * @file dll/library.h
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.
@@ -25,9 +25,11 @@
 #define WINFSP_DLL_INTERNAL
 #include <winfsp/winfsp.h>
 #include <winfsp/launch.h>
-#include <shared/minimal.h>
+#include <shared/um/minimal.h>
 #include <strsafe.h>
 
+#include <shared/ku/config.h>
+
 #define LIBRARY_NAME                    "WinFsp"
 
 /* DEBUGLOG */
@@ -64,6 +66,7 @@ PSID FspWksidGet(WELL_KNOWN_SID_TYPE WellKnownSidType);
 
 PWSTR FspDiagIdent(VOID);
 
+#define FspFileSystemDirectoryBufferEntryInvalid ((ULONG)-1)
 VOID FspFileSystemPeekInDirectoryBuffer(PVOID *PDirBuffer,
     PUINT8 *PBuffer, PULONG *PIndex, PULONG PCount);
 
@@ -91,5 +94,23 @@ static inline BOOLEAN FspPathIsDrive(PWSTR FileName)
         ) &&
         L':' == FileName[1] && L'\0' == FileName[2];
 }
+static inline BOOLEAN FspPathIsMountmgrMountPoint(PWSTR FileName)
+{
+    return
+        (
+            L'\\' == FileName[0] &&
+            L'\\' == FileName[1] &&
+            (L'?' == FileName[2] || L'.' == FileName[2]) &&
+            L'\\' == FileName[3]
+        ) &&
+        (
+            (L'A' <= FileName[4] && FileName[4] <= L'Z') ||
+            (L'a' <= FileName[4] && FileName[4] <= L'z')
+        ) &&
+        L':' == FileName[5];
+}
+
+#define FSP_NEXT_EA(Ea, EaEnd)          \
+    (0 != (Ea)->NextEntryOffset ? (PVOID)((PUINT8)(Ea) + (Ea)->NextEntryOffset) : (EaEnd))
 
 #endif

src/dll/mount.c

@@ -0,0 +1,612 @@
+/**
+ * @file dll/mount.c
+ *
+ * @copyright 2015-2020 Bill Zissimopoulos
+ */
+/*
+ * This file is part of WinFsp.
+ *
+ * You can redistribute it and/or modify it under the terms of the GNU
+ * General Public License version 3 as published by the Free Software
+ * Foundation.
+ *
+ * Licensees holding a valid commercial license may use this software
+ * in accordance with the commercial license agreement provided in
+ * conjunction with the software.  The terms and conditions of any such
+ * commercial license agreement shall govern, supersede, and render
+ * ineffective any application of the GPLv3 license to this software,
+ * notwithstanding of any reference thereto in the software or
+ * associated repository.
+ */
+
+#include <dll/library.h>
+
+static INIT_ONCE FspMountInitOnce = INIT_ONCE_STATIC_INIT;
+static NTSTATUS (NTAPI *FspNtOpenSymbolicLinkObject)(
+    PHANDLE LinkHandle, ACCESS_MASK DesiredAccess, POBJECT_ATTRIBUTES ObjectAttributes);
+static NTSTATUS (NTAPI *FspNtMakeTemporaryObject)(
+    HANDLE Handle);
+static NTSTATUS (NTAPI *FspNtClose)(
+    HANDLE Handle);
+
+static BOOL WINAPI FspMountInitialize(
+    PINIT_ONCE InitOnce, PVOID Parameter, PVOID *Context)
+{
+    HANDLE Handle;
+
+    Handle = GetModuleHandleW(L"ntdll.dll");
+    if (0 != Handle)
+    {
+        FspNtOpenSymbolicLinkObject = (PVOID)GetProcAddress(Handle, "NtOpenSymbolicLinkObject");
+        FspNtMakeTemporaryObject = (PVOID)GetProcAddress(Handle, "NtMakeTemporaryObject");
+        FspNtClose = (PVOID)GetProcAddress(Handle, "NtClose");
+
+        if (0 == FspNtOpenSymbolicLinkObject || 0 == FspNtMakeTemporaryObject || 0 == FspNtClose)
+        {
+            FspNtOpenSymbolicLinkObject = 0;
+            FspNtMakeTemporaryObject = 0;
+            FspNtClose = 0;
+        }
+    }
+
+    return TRUE;
+}
+
+static NTSTATUS FspMountmgrControl(ULONG IoControlCode,
+    PVOID InputBuffer, ULONG InputBufferLength, PVOID OutputBuffer, PULONG POutputBufferLength)
+{
+    HANDLE MgrHandle = INVALID_HANDLE_VALUE;
+    DWORD Bytes = 0;
+    NTSTATUS Result;
+
+    if (0 == POutputBufferLength)
+        POutputBufferLength = &Bytes;
+
+    MgrHandle = CreateFileW(L"\\\\.\\MountPointManager",
+        GENERIC_READ | GENERIC_WRITE,
+        FILE_SHARE_READ | FILE_SHARE_WRITE,
+        0,
+        OPEN_EXISTING,
+        0,
+        0);
+    if (INVALID_HANDLE_VALUE == MgrHandle)
+    {
+        Result = FspNtStatusFromWin32(GetLastError());
+        goto exit;
+    }
+
+    if (!DeviceIoControl(MgrHandle,
+        IoControlCode,
+        InputBuffer, InputBufferLength, OutputBuffer, *POutputBufferLength,
+        &Bytes, 0))
+    {
+        Result = FspNtStatusFromWin32(GetLastError());
+        goto exit;
+    }
+
+    *POutputBufferLength = Bytes;
+    Result = STATUS_SUCCESS;
+
+exit:
+    if (INVALID_HANDLE_VALUE != MgrHandle)
+        CloseHandle(MgrHandle);
+
+    return Result;
+}
+
+static NTSTATUS FspMountSet_Mountmgr(HANDLE VolumeHandle, PWSTR VolumeName, PWSTR MountPoint)
+{
+    /* only support drives for now! (format: \\.\X:) */
+    if (L'\0' != MountPoint[6])
+        return STATUS_INVALID_PARAMETER;
+
+    /* mountmgr.h */
+    typedef enum
+    {
+        Disabled = 0,
+        Enabled,
+    } MOUNTMGR_AUTO_MOUNT_STATE;
+    typedef struct
+    {
+        MOUNTMGR_AUTO_MOUNT_STATE CurrentState;
+    } MOUNTMGR_QUERY_AUTO_MOUNT;
+    typedef struct
+    {
+        MOUNTMGR_AUTO_MOUNT_STATE NewState;
+    } MOUNTMGR_SET_AUTO_MOUNT;
+    typedef struct
+    {
+        USHORT DeviceNameLength;
+        WCHAR DeviceName[1];
+    } MOUNTMGR_TARGET_NAME;
+    typedef struct
+    {
+        USHORT SymbolicLinkNameOffset;
+        USHORT SymbolicLinkNameLength;
+        USHORT DeviceNameOffset;
+        USHORT DeviceNameLength;
+    } MOUNTMGR_CREATE_POINT_INPUT;
+
+    GUID UniqueId;
+    MOUNTMGR_QUERY_AUTO_MOUNT QueryAutoMount;
+    MOUNTMGR_SET_AUTO_MOUNT SetAutoMount;
+    MOUNTMGR_TARGET_NAME *TargetName = 0;
+    MOUNTMGR_CREATE_POINT_INPUT *CreatePointInput = 0;
+    ULONG VolumeNameSize, QueryAutoMountSize, TargetNameSize, CreatePointInputSize;
+    HKEY RegKey;
+    LONG RegResult;
+    WCHAR RegValueName[MAX_PATH];
+    UINT8 RegValueData[sizeof UniqueId];
+    DWORD RegValueNameSize, RegValueDataSize;
+    DWORD RegType;
+    NTSTATUS Result;
+
+    /* transform our volume into one that can be used by the MountManager */
+    Result = FspFsctlMakeMountdev(VolumeHandle, FALSE, &UniqueId);
+    if (!NT_SUCCESS(Result))
+        goto exit;
+
+    VolumeNameSize = lstrlenW(VolumeName) * sizeof(WCHAR);
+    QueryAutoMountSize = sizeof QueryAutoMount;
+    TargetNameSize = FIELD_OFFSET(MOUNTMGR_TARGET_NAME, DeviceName) + VolumeNameSize;
+    CreatePointInputSize = sizeof *CreatePointInput +
+        sizeof L"\\DosDevices\\X:" - sizeof(WCHAR) + VolumeNameSize;
+
+    TargetName = MemAlloc(TargetNameSize);
+    if (0 == TargetName)
+    {
+        Result = STATUS_INSUFFICIENT_RESOURCES;
+        goto exit;
+    }
+
+    CreatePointInput = MemAlloc(CreatePointInputSize);
+    if (0 == CreatePointInput)
+    {
+        Result = STATUS_INSUFFICIENT_RESOURCES;
+        goto exit;
+    }
+
+    /* query the current AutoMount value and save it */
+    Result = FspMountmgrControl(
+        CTL_CODE('m', 15, METHOD_BUFFERED, FILE_ANY_ACCESS),
+            /* IOCTL_MOUNTMGR_QUERY_AUTO_MOUNT */
+        0, 0, &QueryAutoMount, &QueryAutoMountSize);
+    if (!NT_SUCCESS(Result))
+        goto exit;
+
+    /* disable AutoMount */
+    SetAutoMount.NewState = 0;
+    Result = FspMountmgrControl(
+        CTL_CODE('m', 16, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS),
+            /* IOCTL_MOUNTMGR_SET_AUTO_MOUNT */
+        &SetAutoMount, sizeof SetAutoMount, 0, 0);
+    if (!NT_SUCCESS(Result))
+        goto exit;
+
+    /* announce volume arrival */
+    memset(TargetName, 0, sizeof *TargetName);
+    TargetName->DeviceNameLength = (USHORT)VolumeNameSize;
+    memcpy(TargetName->DeviceName,
+        VolumeName, TargetName->DeviceNameLength);
+    Result = FspMountmgrControl(
+        CTL_CODE('m', 11, METHOD_BUFFERED, FILE_READ_ACCESS),
+            /* IOCTL_MOUNTMGR_VOLUME_ARRIVAL_NOTIFICATION */
+        TargetName, TargetNameSize, 0, 0);
+    if (!NT_SUCCESS(Result))
+        goto exit;
+
+    /* reset the AutoMount value to the saved one */
+    SetAutoMount.NewState = QueryAutoMount.CurrentState;
+    FspMountmgrControl(
+        CTL_CODE('m', 16, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS),
+            /* IOCTL_MOUNTMGR_SET_AUTO_MOUNT */
+        &SetAutoMount, sizeof SetAutoMount, 0, 0);
+#if 0
+    if (!NT_SUCCESS(Result))
+        goto exit;
+#endif
+
+    /* create mount point */
+    memset(CreatePointInput, 0, sizeof *CreatePointInput);
+    CreatePointInput->SymbolicLinkNameOffset = sizeof *CreatePointInput;
+    CreatePointInput->SymbolicLinkNameLength = sizeof L"\\DosDevices\\X:" - sizeof(WCHAR);
+    CreatePointInput->DeviceNameOffset =
+        CreatePointInput->SymbolicLinkNameOffset + CreatePointInput->SymbolicLinkNameLength;
+    CreatePointInput->DeviceNameLength = (USHORT)VolumeNameSize;
+    memcpy((PUINT8)CreatePointInput + CreatePointInput->SymbolicLinkNameOffset,
+        L"\\DosDevices\\X:", CreatePointInput->SymbolicLinkNameLength);
+    ((PWCHAR)((PUINT8)CreatePointInput + CreatePointInput->SymbolicLinkNameOffset))[12] =
+        MountPoint[4] & ~0x20;
+        /* convert to uppercase */
+    memcpy((PUINT8)CreatePointInput + CreatePointInput->DeviceNameOffset,
+        VolumeName, CreatePointInput->DeviceNameLength);
+    Result = FspMountmgrControl(
+        CTL_CODE('m', 0, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS),
+            /* IOCTL_MOUNTMGR_CREATE_POINT */
+        CreatePointInput, CreatePointInputSize, 0, 0);
+    if (!NT_SUCCESS(Result))
+        goto exit;
+
+    /* HACK: delete the MountManager registry entries */
+    RegResult = RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"System\\MountedDevices",
+        0, KEY_READ | KEY_WRITE, &RegKey);
+    if (ERROR_SUCCESS == RegResult)
+    {
+        for (DWORD I = 0;; I++)
+        {
+            RegValueNameSize = MAX_PATH;
+            RegValueDataSize = sizeof RegValueData;
+            RegResult = RegEnumValueW(RegKey,
+                I, RegValueName, &RegValueNameSize, 0, &RegType, RegValueData, &RegValueDataSize);
+            if (ERROR_NO_MORE_ITEMS == RegResult)
+                break;
+            else if (ERROR_SUCCESS != RegResult)
+                continue;
+
+            if (REG_BINARY == RegType &&
+                sizeof RegValueData == RegValueDataSize &&
+                InlineIsEqualGUID((GUID *)&RegValueData, &UniqueId))
+            {
+                RegResult = RegDeleteValueW(RegKey, RegValueName);
+                if (ERROR_SUCCESS == RegResult)
+                    /* reset index after modifying key; only safe way to use RegEnumValueW with modifications */
+                    I = -1;
+            }
+        }
+
+        RegCloseKey(RegKey);
+    }
+
+    Result = STATUS_SUCCESS;
+
+exit:
+    MemFree(CreatePointInput);
+    MemFree(TargetName);
+
+    return Result;
+}
+
+static NTSTATUS FspMountRemove_Mountmgr(PWSTR MountPoint)
+{
+    /* mountmgr.h */
+    typedef struct
+    {
+        ULONG SymbolicLinkNameOffset;
+        USHORT SymbolicLinkNameLength;
+        USHORT Reserved1;
+        ULONG UniqueIdOffset;
+        USHORT UniqueIdLength;
+        USHORT Reserved2;
+        ULONG DeviceNameOffset;
+        USHORT DeviceNameLength;
+        USHORT Reserved3;
+    } MOUNTMGR_MOUNT_POINT;
+    typedef struct
+    {
+        ULONG Size;
+        ULONG NumberOfMountPoints;
+        MOUNTMGR_MOUNT_POINT MountPoints[1];
+    } MOUNTMGR_MOUNT_POINTS;
+
+    MOUNTMGR_MOUNT_POINT *Input = 0;
+    MOUNTMGR_MOUNT_POINTS *Output = 0;
+    ULONG InputSize, OutputSize;
+    NTSTATUS Result;
+
+    InputSize = sizeof *Input + sizeof L"\\DosDevices\\X:" - sizeof(WCHAR);
+    OutputSize = 4096;
+
+    Input = MemAlloc(InputSize);
+    if (0 == Input)
+    {
+        Result = STATUS_INSUFFICIENT_RESOURCES;
+        goto exit;
+    }
+
+    Output = MemAlloc(OutputSize);
+    if (0 == Output)
+    {
+        Result = STATUS_INSUFFICIENT_RESOURCES;
+        goto exit;
+    }
+
+    memset(Input, 0, sizeof *Input);
+    Input->SymbolicLinkNameOffset = sizeof *Input;
+    Input->SymbolicLinkNameLength = sizeof L"\\DosDevices\\X:" - sizeof(WCHAR);
+    memcpy((PUINT8)Input + Input->SymbolicLinkNameOffset,
+        L"\\DosDevices\\X:", Input->SymbolicLinkNameLength);
+    ((PWCHAR)((PUINT8)Input + Input->SymbolicLinkNameOffset))[12] = MountPoint[4] & ~0x20;
+        /* convert to uppercase */
+    Result = FspMountmgrControl(
+        CTL_CODE('m', 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS),
+            /* IOCTL_MOUNTMGR_DELETE_POINTS */
+        Input, InputSize, Output, &OutputSize);
+    if (!NT_SUCCESS(Result))
+        goto exit;
+
+    Result = STATUS_SUCCESS;
+
+exit:
+    MemFree(Output);
+    MemFree(Input);
+
+    return Result;
+}
+
+static NTSTATUS FspLauncherDefineDosDevice(
+    WCHAR Sign, PWSTR MountPoint, PWSTR VolumeName)
+{
+    if (2 != lstrlenW(MountPoint) ||
+        FSP_FSCTL_VOLUME_NAME_SIZEMAX / sizeof(WCHAR) <= lstrlenW(VolumeName))
+        return STATUS_INVALID_PARAMETER;
+
+    WCHAR Argv0[4];
+    PWSTR Argv[2];
+    NTSTATUS Result;
+    ULONG ErrorCode;
+
+    Argv0[0] = Sign;
+    Argv0[1] = MountPoint[0];
+    Argv0[2] = MountPoint[1];
+    Argv0[3] = L'\0';
+
+    Argv[0] = Argv0;
+    Argv[1] = VolumeName;
+
+    Result = FspLaunchCallLauncherPipe(FspLaunchCmdDefineDosDevice, 2, Argv, 0, 0, 0, &ErrorCode);
+    return !NT_SUCCESS(Result) ? Result : FspNtStatusFromWin32(ErrorCode);
+}
+
+static NTSTATUS FspMountSet_Drive(PWSTR VolumeName, PWSTR MountPoint, PHANDLE PMountHandle)
+{
+    NTSTATUS Result;
+    BOOLEAN IsLocalSystem, IsServiceContext;
+
+    *PMountHandle = 0;
+
+    Result = FspServiceContextCheck(0, &IsLocalSystem);
+    IsServiceContext = NT_SUCCESS(Result) && !IsLocalSystem;
+    if (IsServiceContext)
+    {
+        /*
+         * If the current process is in the service context but not LocalSystem,
+         * ask the launcher to DefineDosDevice for us. This is because the launcher
+         * runs in the LocalSystem context and can create global drives.
+         *
+         * In this case the launcher will also add DELETE access to the drive symlink
+         * for us, so that we can make it temporary below.
+         */
+        Result = FspLauncherDefineDosDevice(L'+', MountPoint, VolumeName);
+        if (!NT_SUCCESS(Result))
+            return Result;
+    }
+    else
+    {
+        if (!DefineDosDeviceW(DDD_RAW_TARGET_PATH, MountPoint, VolumeName))
+            return FspNtStatusFromWin32(GetLastError());
+    }
+
+    if (0 != FspNtOpenSymbolicLinkObject)
+    {
+        WCHAR SymlinkBuf[6];
+        UNICODE_STRING Symlink;
+        OBJECT_ATTRIBUTES Obja;
+
+        memcpy(SymlinkBuf, L"\\??\\X:", sizeof SymlinkBuf);
+        SymlinkBuf[4] = MountPoint[0];
+        Symlink.Length = Symlink.MaximumLength = sizeof SymlinkBuf;
+        Symlink.Buffer = SymlinkBuf;
+
+        memset(&Obja, 0, sizeof Obja);
+        Obja.Length = sizeof Obja;
+        Obja.ObjectName = &Symlink;
+        Obja.Attributes = OBJ_CASE_INSENSITIVE;
+
+        Result = FspNtOpenSymbolicLinkObject(PMountHandle, DELETE, &Obja);
+        if (NT_SUCCESS(Result))
+        {
+            Result = FspNtMakeTemporaryObject(*PMountHandle);
+            if (!NT_SUCCESS(Result))
+            {
+                FspNtClose(*PMountHandle);
+                *PMountHandle = 0;
+            }
+        }
+    }
+
+    /* HACK:
+     *
+     * Handles do not use the low 2 bits (unless they are console handles).
+     * Abuse this fact to remember that we are running in the service context.
+     */
+    *PMountHandle = (HANDLE)(UINT_PTR)((DWORD)(UINT_PTR)*PMountHandle | IsServiceContext);
+
+    return STATUS_SUCCESS;
+}
+
+static NTSTATUS FspMountRemove_Drive(PWSTR VolumeName, PWSTR MountPoint, HANDLE MountHandle)
+{
+    NTSTATUS Result;
+    BOOLEAN IsServiceContext;
+
+    IsServiceContext = 0 != ((DWORD)(UINT_PTR)MountHandle & 1);
+    MountHandle = (HANDLE)(UINT_PTR)((DWORD)(UINT_PTR)MountHandle & ~1);
+    if (IsServiceContext)
+        /*
+         * If the current process is in the service context but not LocalSystem,
+         * ask the launcher to DefineDosDevice for us. This is because the launcher
+         * runs in the LocalSystem context and can remove global drives.
+         */
+        Result = FspLauncherDefineDosDevice(L'-', MountPoint, VolumeName);
+    else
+        Result = DefineDosDeviceW(DDD_RAW_TARGET_PATH | DDD_REMOVE_DEFINITION | DDD_EXACT_MATCH_ON_REMOVE,
+            MountPoint, VolumeName) ? STATUS_SUCCESS : FspNtStatusFromWin32(GetLastError());
+
+    if (0 != MountHandle)
+        FspNtClose(MountHandle);
+
+    return Result;
+}
+
+static NTSTATUS FspMountSet_Directory(PWSTR VolumeName, PWSTR MountPoint,
+    PSECURITY_DESCRIPTOR SecurityDescriptor, PHANDLE PMountHandle)
+{
+    NTSTATUS Result;
+    SECURITY_ATTRIBUTES SecurityAttributes;
+    HANDLE MountHandle = INVALID_HANDLE_VALUE;
+    DWORD Backslashes, Bytes;
+    USHORT VolumeNameLength, BackslashLength, ReparseDataLength;
+    PREPARSE_DATA_BUFFER ReparseData = 0;
+    PWSTR P, PathBuffer;
+
+    *PMountHandle = 0;
+
+    /*
+     * Windows does not allow mount points (junctions) to point to network file systems.
+     *
+     * Count how many backslashes our VolumeName has. If it is 3 or more this is a network
+     * file system. Preemptively return STATUS_NETWORK_ACCESS_DENIED.
+     */
+    for (P = VolumeName, Backslashes = 0; *P; P++)
+        if (L'\\' == *P)
+            if (3 == ++Backslashes)
+            {
+                Result = STATUS_NETWORK_ACCESS_DENIED;
+                goto exit;
+            }
+
+    memset(&SecurityAttributes, 0, sizeof SecurityAttributes);
+    SecurityAttributes.nLength = sizeof SecurityAttributes;
+    SecurityAttributes.lpSecurityDescriptor = SecurityDescriptor;
+
+    MountHandle = CreateFileW(MountPoint,
+        FILE_WRITE_ATTRIBUTES,
+        FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+        &SecurityAttributes,
+        CREATE_NEW,
+        FILE_ATTRIBUTE_DIRECTORY |
+            FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_POSIX_SEMANTICS | FILE_FLAG_DELETE_ON_CLOSE,
+        0);
+    if (INVALID_HANDLE_VALUE == MountHandle)
+    {
+        Result = FspNtStatusFromWin32(GetLastError());
+        goto exit;
+    }
+
+    VolumeNameLength = (USHORT)lstrlenW(VolumeName);
+    BackslashLength = 0 == VolumeNameLength || L'\\' != VolumeName[VolumeNameLength - 1];
+    VolumeNameLength *= sizeof(WCHAR);
+    BackslashLength *= sizeof(WCHAR);
+
+    ReparseDataLength = (USHORT)(
+        FIELD_OFFSET(REPARSE_DATA_BUFFER, MountPointReparseBuffer.PathBuffer) -
+        FIELD_OFFSET(REPARSE_DATA_BUFFER, MountPointReparseBuffer)) +
+        2 * (VolumeNameLength + BackslashLength + sizeof(WCHAR));
+    ReparseData = MemAlloc(REPARSE_DATA_BUFFER_HEADER_SIZE + ReparseDataLength);
+    if (0 == ReparseData)
+    {
+        Result = STATUS_INSUFFICIENT_RESOURCES;
+        goto exit;
+    }
+
+    ReparseData->ReparseTag = IO_REPARSE_TAG_MOUNT_POINT;
+    ReparseData->ReparseDataLength = ReparseDataLength;
+    ReparseData->Reserved = 0;
+    ReparseData->MountPointReparseBuffer.SubstituteNameOffset = 0;
+    ReparseData->MountPointReparseBuffer.SubstituteNameLength =
+        VolumeNameLength + BackslashLength;
+    ReparseData->MountPointReparseBuffer.PrintNameOffset =
+        ReparseData->MountPointReparseBuffer.SubstituteNameLength + sizeof(WCHAR);
+    ReparseData->MountPointReparseBuffer.PrintNameLength =
+        VolumeNameLength + BackslashLength;
+
+    PathBuffer = ReparseData->MountPointReparseBuffer.PathBuffer;
+    memcpy(PathBuffer, VolumeName, VolumeNameLength);
+    if (BackslashLength)
+        PathBuffer[VolumeNameLength / sizeof(WCHAR)] = L'\\';
+    PathBuffer[(VolumeNameLength + BackslashLength) / sizeof(WCHAR)] = L'\0';
+
+    PathBuffer = ReparseData->MountPointReparseBuffer.PathBuffer +
+        (ReparseData->MountPointReparseBuffer.PrintNameOffset) / sizeof(WCHAR);
+    memcpy(PathBuffer, VolumeName, VolumeNameLength);
+    if (BackslashLength)
+        PathBuffer[VolumeNameLength / sizeof(WCHAR)] = L'\\';
+    PathBuffer[(VolumeNameLength + BackslashLength) / sizeof(WCHAR)] = L'\0';
+
+    if (!DeviceIoControl(MountHandle, FSCTL_SET_REPARSE_POINT,
+        ReparseData, REPARSE_DATA_BUFFER_HEADER_SIZE + ReparseData->ReparseDataLength,
+        0, 0,
+        &Bytes, 0))
+    {
+        Result = FspNtStatusFromWin32(GetLastError());
+        goto exit;
+    }
+
+    *PMountHandle = MountHandle;
+
+    Result = STATUS_SUCCESS;
+
+exit:
+    if (!NT_SUCCESS(Result) && INVALID_HANDLE_VALUE != MountHandle)
+        CloseHandle(MountHandle);
+
+    MemFree(ReparseData);
+
+    return Result;
+}
+
+static NTSTATUS FspMountRemove_Directory(HANDLE MountHandle)
+{
+    /* directory is marked DELETE_ON_CLOSE */
+    return CloseHandle(MountHandle) ? STATUS_SUCCESS : FspNtStatusFromWin32(GetLastError());
+}
+
+FSP_API NTSTATUS FspMountSet(FSP_MOUNT_DESC *Desc)
+{
+    InitOnceExecuteOnce(&FspMountInitOnce, FspMountInitialize, 0, 0);
+
+    Desc->MountHandle = 0;
+
+    if (L'*' == Desc->MountPoint[0] && ':' == Desc->MountPoint[1] && L'\0' == Desc->MountPoint[2])
+    {
+        NTSTATUS Result;
+        DWORD Drives;
+        WCHAR Drive;
+
+        Drives = GetLogicalDrives();
+        if (0 == Drives)
+            return FspNtStatusFromWin32(GetLastError());
+
+        for (Drive = 'Z'; 'D' <= Drive; Drive--)
+            if (0 == (Drives & (1 << (Drive - 'A'))))
+            {
+                Desc->MountPoint[0] = Drive;
+                Result = FspMountSet_Drive(Desc->VolumeName, Desc->MountPoint,
+                    &Desc->MountHandle);
+                if (NT_SUCCESS(Result))
+                    return Result;
+            }
+        Desc->MountPoint[0] = L'*';
+        return STATUS_NO_SUCH_DEVICE;
+    }
+    else if (FspPathIsMountmgrMountPoint(Desc->MountPoint))
+        return FspMountSet_Mountmgr(Desc->VolumeHandle, Desc->VolumeName, Desc->MountPoint);
+    else if (FspPathIsDrive(Desc->MountPoint))
+        return FspMountSet_Drive(Desc->VolumeName, Desc->MountPoint,
+            &Desc->MountHandle);
+    else
+        return FspMountSet_Directory(Desc->VolumeName, Desc->MountPoint, Desc->Security,
+            &Desc->MountHandle);
+}
+
+FSP_API NTSTATUS FspMountRemove(FSP_MOUNT_DESC *Desc)
+{
+    InitOnceExecuteOnce(&FspMountInitOnce, FspMountInitialize, 0, 0);
+
+    if (FspPathIsMountmgrMountPoint(Desc->MountPoint))
+        return FspMountRemove_Mountmgr(Desc->MountPoint);
+    else if (FspPathIsDrive(Desc->MountPoint))
+        return FspMountRemove_Drive(Desc->VolumeName, Desc->MountPoint, Desc->MountHandle);
+    else
+        return FspMountRemove_Directory(Desc->MountHandle);
+}

src/dll/np.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/np.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/ntstatus.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/ntstatus.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.

src/dll/path.c

@@ -1,7 +1,7 @@
 /**
  * @file dll/path.c
  *
- * @copyright 2015-2018 Bill Zissimopoulos
+ * @copyright 2015-2020 Bill Zissimopoulos
  */
 /*
  * This file is part of WinFsp.