[Spice-devel] usbredir doesn't hide/filter specific usb devices

[lizhijian at fujitsu.com]

thanks a lot  for your kindly explanation.


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________________________________
From: Uri Lublin <uril at redhat.com>
Sent: Wednesday, February 16, 2022 10:39:40 PM
To: Li, Zhijian/李 智坚 <lizhijian at fujitsu.com>
Cc: spice-devel <spice-devel at lists.freedesktop.org>
Subject: Re: [Spice-devel] usbredir doesn't hide/filter specific usb devices

On Tue, Feb 15, 2022 at 5:41 PM lizhijian at fujitsu.com<mailto:lizhijian at fujitsu.com> <lizhijian at fujitsu.com<mailto:lizhijian at fujitsu.com>> wrote:
> The auto-redirect-filter only works for auto-redirected USB devices.

may i know what "auto-redirected usb devices" mean here. what's auto-redirect-filter user case.


USB devices that are being plugged in while the remote-viewer window is in focus.
Such USB devices are auto-redirect'ed to the guest, but go through the filter first.

Uri



> When a user is choosing a device from the menu, the filter does not apply.

any idea to hide specific host usb devices from guest by current scheme


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________________________________
发件人: Uri Lublin <uril at redhat.com<mailto:uril at redhat.com>>
发送时间: 2022年2月15日星期二 22:50
收件人: Li, Zhijian/李 智坚
抄送: spice-devel
主题: Re: [Spice-devel] usbredir doesn't hide/filter specific usb devices

Hi Zhijian,

On Tue, Feb 15, 2022 at 3:52 PM Li, Zhijian <lizhijian at cn.fujitsu.com<mailto:lizhijian at cn.fujitsu.com>> wrote:
Hi guys

I intended to not allow redirecting some of my usb devices(HID) to the guest, i thought https://www.spice-space.org/usbredir.html
could help on this.

My host has below usb devices

lizj at FNSTPC:~/workspace/vgt/virt-viewer/src$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 04d8:0b2a Microchip Technology, Inc.
Bus 001 Device 021: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 004: ID 0424:2137 Standard Microsystems Corp.
Bus 001 Device 003: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS
802.11n WLAN Adapter
Bus 001 Device 002: ID 0bda:8771 Realtek Semiconductor Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ remote-viewer
--spice-usbredir-auto-redirect-filter="-1,0x0bda,-1,-1,0" --spice-debug
spice://localhost:5900

For testing, i just want to hide produce id 0x0bda from remote-viewer
with above command line. But acutally

i am still able to redirec both Realtek device to the guest through
remote-viewer.

So is there something with my usage ? Feel free to let me know if there
is something wrong.

The auto-redirect-filter only works for auto-redirected USB devices.
When a user is choosing a device from the menu, the filter does not apply.

Regards,
    Uri.T


Thanks

Zhijian




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