WNBD is a client side implementation of Network Block Device
Visual Studio 2019 build tools or GUI (Community version or above)
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Dockerfile contains a Dockerfile to create a Docker image that contains needed prerequisites
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driver contains the driver sources
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ksocket_wsk contains the WSK implementation needed to communicate with the Network Block Device server
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userspace contains a simple console application
wnbd-clientuseful for testing -
vstudio contains the Visual Studio solution file and its projects
> git clone https://github.com/cloudbase/wnbd
> msbuild wnbd\vstudio\wnbd.sln
> copy wnbd\vstudio\x64\Debug\driver\* .
> copy wnbd\vstudio\x64\Debug\wnbd-client.exe .
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Prerequisites.
After building, the driver is automatically test signed. To install the built driver you must make sure that your target machine is Test Signed enabled first. To enable Test Signing on your target machine, please issue the following from an elevated command prompt:
> bcdedit.exe /set testsigning yesPlease note that you can enable driver signing only if Secure Boot is not enabled on the target machine. To check if your target machine does not have Secure Boot enabled issue
Confirm-SecureBootUEFIfrom an elevated powershell promptPS C:\WINDOWS\system32> Confirm-SecureBootUEFI FalseA reboot is required after changing
bcdeditsettings -
Installation/removal.
We require devcon.exe utility to install and uninstall the driver.
- To install the driver issue the following from an elevated command prompt:
> .\devcon.exe install .\wnbd.inf root\wnbd
(The command above assumes that the utility
devcon.exeand the driver fileswnbd.inf,wnbd.cat,wnbd.sysare in the current directory)- To uninstall the driver issue the following from an elevated command prompt:
.\devcon.exe remove "root\wnbd"
(The command above assumes that the utility
devcon.exeis in the current directory)For convenience, we included reinstall.ps1 which uninstalls (ignoring the error) and installs the driver again.
- To install the driver issue the following from an elevated command prompt:
We assume you are familiar with using NBD.
wnbd-clientsyntax
PS C:\workspace> .\wnbd-client.exe
Syntax:
wnbd-client map <InstanceName> <HostName> <PortName> <ExportName> <DoNotNegotiate>
wnbd-client unmap <InstanceName>
wnbd-client list
- NBD server configuration:
root@ubuntu-Virtual-Machine:/home/ubuntu# cat /etc/nbd-server/config
[generic]
# If you want to run everything as root rather than the nbd user, you
# may either say "root" in the two following lines, or remove them
# altogether. Do not remove the [generic] section, however.
port = 9000
user = nbd
group = nbd
includedir = /etc/nbd-server/conf.d
# What follows are export definitions. You may create as much of them as
# you want, but the section header has to be unique.
[foo]
exportname = /blaz/bla.img
port = 9000
copyonwrite = true
root@ubuntu-Virtual-Machine:/home/ubuntu# ifconfig eth0 | grep 172
inet 172.17.160.251 netmask 255.255.255.240 broadcast 172.17.160.255
- Mapping an export:
PS C:\workspace> .\wnbd-client.exe map test2 172.17.160.251 9000 foo
InstanceName=test2
HostName=172.17.160.251
PortName=9000
ExportName=foo
MustNegociate=1
PS C:\workspace> Get-Disk
Number Friendly Name Serial Number HealthStatus OperationalStatus Total Size Partition
Style
------ ------------- ------------- ------------ ----------------- ---------- ----------
0 Msft Virtual Disk Healthy Online 127 GB GPT
1 WNBD Dis WNBD_DISK_ID test2 Healthy Online 256 MB RAW
- Listing the mapped device
PS C:\workspace> .\wnbd-client.exe list
Status: 0
InstanceName Pid DiskNumber
test2 6712 1
- Unmapping the device
PS C:\workspace> .\wnbd-client.exe unmap test2
PS C:\workspace> Get-Disk
Number Friendly Name Serial Number HealthStatus OperationalStatus Total Size Partition
Style
------ ------------- ------------- ------------ ----------------- ---------- ----------
0 Msft Virtual Disk Healthy Online 127 GB GPT
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