USB/IP Client for Windows

• Fully compatible with USB/IP protocol
• Works with Linux USB/IP server at least for kernels 4.19 - 6.5
• Is not ready for production use, can cause BSOD
• The driver is not signed, Windows Test Signing Mode must be enabled
• Do not set testsigning off when USBip is installed, see
• You can donate to purchase an EV certificate which is required for signing the driver, please read
• Devices that work (list is incomplete)

Requirements

• Windows 10 x64 Version 1809 (OS build 17763) and later
• Server must support USB/IP protocol v.1.1.1

Key features

• UDE driver is an USB/IP client
• USB class upper filter driver usbip2_filter is used as companion for UDE driver
• Winsock Kernel NPI is used
  • The driver establishes TCP/IP connection with a server and does data exchange
  • This implies low latency and high throughput, absence of frequent CPU context switching and a lot of syscalls
• Zero copy of transfer buffers is implemented for network send and receive operations
  • Memory Descriptor List is used to send multiple buffers in a single call (vectored I/O)
  • WskSend reads data from URB transfer buffer
  • WskReceive writes data to URB transfer buffer
• A dedicated thread is created for each virtual device to receive data from a server

Differences with cezanne/usbip-win

• Brand new UDE driver, not inherited from the parent repo
• Full-featured GUI app
• Userspace code is fully rewritten (libusbip and usbip utility)
• SDK for third party developers (libusbip public API)
• InnoSetup installer is used for installation of drivers and userspace stuff
• Windows 10 version 1809 or later is required
• C++ 20 is used for all projects
• Visual Studio 2022 is used
• Server (stub driver) is removed
• x64 build only

Build

Build Tools

• Visual Studio 2022
• SDK for Windows 11, version 24H2 (10.0.26100.1)
• WDK for Windows 11, version 24H2 (10.0.26100.1)

Build Visual Studio solution

• Run bootstrap.bat
• Open usbip_win2.sln
• Set certificate driver signing for package project
  • Right-click on the Project > Properties > Driver Signing > Test Certificate
  • Enter usbip.pfx (password: usbip)
• Build the solution
• All output files are created under x64/{Debug,Release} folders.

Setup USB/IP server on Ubuntu Linux

• Install required packages
  • Linux sudo apt install linux-tools-generic linux-cloud-tools-generic
  • Raspberry Pi sudo apt install usbip hwdata usbutils
• Load modules and run the daemon

sudo modprobe -a usbip-core usbip-host
sudo usbipd -D

• List available USB devices
  • usbip list -l

 - busid 3-2 (1005:b113)
   Apacer Technology, Inc. : Handy Steno/AH123 / Handy Steno 2.0/HT203 (1005:b113)
 - busid 3-3.2 (07ca:513b)
   AVerMedia Technologies, Inc. : unknown product (07ca:513b)

• Bind desired USB device
  • sudo usbip bind -b 3-2

usbip: info: bind device on busid 3-2: complete

• Your device 3-2 now can be used by usbip client

Setup USB/IP on Windows

Enable Windows Test Signing Mode

• bcdedit.exe /set testsigning on
• Reboot the system to apply

Install USB/IP

• Download and run an installer from releases
• Some antivirus programs issue false positives for InnoSetup installers

Use usbip.exe to attach remote device(s)

• Query available USB devices on the server
  • usbip.exe list -r <usbip server ip>

Exportable USB devices
======================
 - 192.168.1.9
        3-2: unknown vendor : unknown product (1005:b113)
           : /sys/devices/pci0000:00/0000:00:14.0/usb3/3-2
           : (Defined at Interface level) (00/00/00)

• Attach desired remote USB device using its busid
  • usbip.exe attach -r <usbip server ip> -b 3-2

successfully attached to port 1

• New USB device should appear in the system, use it as usual
• Detach the remote USB device using its usb port, pass -all to detach all remote devices
  • usbip.exe detach -p 1

port 1 is successfully detached

Uninstallation of USB/IP

• Uninstall USB/IP app
• Disable test signing
  • bcdedit.exe /set testsigning off
  • Reboot the system to apply
• If an uninstaller is corrupted, run these commands as Administrator
• If you copy commands to a .bat file, use %%P and %%~nxP in FOR statement

set APPDIR=C:\Program Files\USBip
set HWID=ROOT\USBIP_WIN2\UDE

"%APPDIR%\usbip.exe" detach --all

"%APPDIR%\devnode.exe" remove %HWID% root
rem pnputil.exe /remove-device /deviceid %HWID% /subtree

rem WARNING: use %%P and %%~nxP if you run this command in a .bat file
FOR /f %P IN ('findstr /M /L %HWID% C:\WINDOWS\INF\oem*.inf') DO pnputil.exe /delete-driver %~nxP /uninstall

"%APPDIR%\classfilter.exe" uninstall "%APPDIR%\usbip2_filter.inf" DefaultUninstall.NTamd64
rd /S /Q "%APPDIR%"

Disable Windows Test Signing Mode without removing USB/IP

• Can be useful if you want to temporary disable test signing
• After that, USBip will not work until the test signing will be reenabled
• usbip2_filter driver must be disabled, otherwise all USB controllers/devices will not work

devcon.exe classfilter usb upper !usbip2_filter
bcdedit.exe /set testsigning off

• To enable it again

devcon.exe classfilter usb upper +usbip2_filter
bcdedit.exe /set testsigning on

• If devcon.exe is not installed
  • Run regedit.exe
  • Open key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{36fc9e60-c465-11cf-8056-444553540000}
  • Remove usbip2_filter line from UpperFilters multi-string value to disable the driver
  • Add this line to enable the driver

Obtaining USB/IP logs on Windows

• WPP Software Tracing is used
• Use the tools for software tracing, such as TraceView, Tracelog, Tracefmt, and Tracepdb to configure, start, and stop tracing sessions and to display and filter trace messages
• These tools are included in the Windows Driver Kit
• Pick "Select Components/Program DataBase files" during USBip installation
• Start log sessions for drivers (run commands as Administrator)

rem change to your WDK version
set PATH=%PATH%;C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\x64

set NAME=usbip

tracelog.exe -stop %NAME%-flt
tracelog.exe -stop %NAME%-ude

del /F %NAME%-*.*
tracepdb.exe -f "C:\Program Files\USBip\*.pdb" -s -p %TEMP%\%NAME%

tracelog.exe -start %NAME%-flt -guid #90c336ed-69fb-43d6-b800-1552d72d200b -f %NAME%-flt.etl -flag 0x3 -level 5
tracelog.exe -start %NAME%-ude -guid #ed18c9c5-8322-48ae-bf78-d01d898a1562 -f %NAME%-ude.etl -flag 0xF -level 5

• Reproduce the issue
• Stop log sessions and get plain text logs (run commands as Administrator)
• If you copy commands to a .bat file, double '%' in TRACE_FORMAT_PREFIX

rem change to your WDK version
set PATH=%PATH%;C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\x64

set NAME=usbip
set TRACE_FORMAT_PREFIX=[%9]%3!04x! %!LEVEL! %!FUNC!:

tracelog.exe -stop %NAME%-flt
tracelog.exe -stop %NAME%-ude

tracefmt.exe -nosummary -p %TEMP%\%NAME% -o %NAME%-flt.txt %NAME%-flt.etl
tracefmt.exe -nosummary -p %TEMP%\%NAME% -o %NAME%-ude.txt %NAME%-ude.etl

rem sed -i "s/TRACE_LEVEL_CRITICAL/CRT/;s/TRACE_LEVEL_ERROR/ERR/;s/TRACE_LEVEL_WARNING/WRN/;s/TRACE_LEVEL_INFORMATION/INF/;s/TRACE_LEVEL_VERBOSE/VRB/" %NAME%-*.txt
rem sed -i "s/`anonymous namespace':://" %NAME%-*.txt
rem del /F sed*

Debugging BSOD

• Enable kernel memory dump
  • Open "System Properties" dialog box
  • Select "Advanced" tab
  • Click on "Settings" in "Startup and Recovery"
  • "System failure", "Write debugging information", pick "Automatic Memory Dump" or "Kernel Memory Dump"
  • Check "Overwrite any existing file"
• Start WPP tracing session for drivers as described in the previous topic
• When BSOD has occured
  • Reboot PC if automatic reboot is not set
  • Run Windows debugger WinDbg.exe as Administrator
  • Press Ctrl+D to open crash dump in C:\Windows
  • Run following commands and copy the output

.sympath+ C:\Program Files\USBip
!wmitrace.searchpath +%TEMP%\usbip
!analyze -v
!wdfkd.wdfsearchpath %TEMP%\USBip
!wdfkd.wdfsettraceprefix [%9]%3!04x! %!LEVEL! %!FUNC!:
!wdfkd.wdflogdump usbip2_ude -d
!wdfkd.wdflogdump usbip2_ude -f

Obtaining USB/IP log on Linux

sudo killall usbipd
sudo modprobe -r usbip-host usbip-vudc vhci-hcd usbip-core
sudo modprobe usbip-core usbip_debug_flag=0xFFFFFFFF
sudo modprobe -a usbip-host usbip-vudc vhci-hcd
sudo usbipd -D
dmesg --follow | tee ~/usbip.log

Testing the driver

• Driver Verifier is used for testing
• Run verifier.exe as Administrator
• Enable testing

verifier /rc 1 2 4 5 6 8 9 12 18 34  10 11 14 15 16 17 20 24 26 33 35 36 /driver usbip2_filter.sys usbip2_ude.sys

• Be aware that rule class 26 "Code integrity checking" forces to use NonPagedPoolNx instead of NonPagedPool
• Query driver statistics

verifier /query

• Disable testing

verifier /reset

• To run Static Driver Verifier, set "Treat Warnings As Errors" to "No" for libdrv, usbip2_filter, usbip2_ude projects

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