Bug 2064602
| Summary: | [RFE]Support copy/paste in the VNC console in virt-viewer | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 9 | Reporter: | Guo, Zhiyi <zhguo> |
| Component: | virt-viewer | Assignee: | Daniel Berrangé <berrange> |
| Status: | NEW --- | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 9.1 | CC: | berrange, hongzliu, jjongsma, juzhou, mxie, tyan, tzheng, virt-maint, vwu, xiaodwan |
| Target Milestone: | rc | Keywords: | FutureFeature |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | Story | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2057768, 2060724 | ||
| Bug Blocks: | |||
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Description
Guo, Zhiyi
2022-03-16 09:05:42 UTC
(In reply to Guo, Zhiyi from comment #0) > Description of problem: > qemu-kvm has supported copy/paste in the vnc console since qemu-kvm 6.2.0, > see: > Bug 1874926 - [RFE] copy/paste support in qemu VNC console > > Beside Libvirt, virt-viewer should also support this feature. > > > Steps to Reproduce: > 1.Start VM with VNC has copy/paste enabled, use virt-viewer connect to VM > vnc port > 2.Try to copy some characters from client machine and paste them to VM > 3.Try to copy some characters from VM and paste them to client machine > > Actual results: > copy/paste in step 2 and 3 doesn't work > > Expected results: > copy/paste works good > > Additional info: > I have checked virt-viewer-11.0-1.el9.x86_64 and copy/paste doesn't work. As > a reference, vncviewer provided by tigervnc-1.11.0-21.el9.x86_64 has > copy/paste works I've only done a cursory investigation so far, but I suspect that there may need to be some work done in gtk-vnc as well. One potentially significant difference between vncviewer/tigervnc and virt-viewer is that vncviewer sends a SetEncodings[1] message to the server when it connects, and this message includes the pseudo-encoding value 0xc0a1e5ce[2], which causes qemu to enable some clipboard-related functionality. [1] https://datatracker.ietf.org/doc/html/rfc6143#section-7.5.2 [2] https://gitlab.com/qemu-project/qemu/-/blob/1d60bb4b14601e38ed17384277aa4c30c57925d3/ui/vnc.h#L425 (In reply to Jonathon Jongsma from comment #2) > I've only done a cursory investigation so far, but I suspect that there may > need to be some work done in gtk-vnc as well. One potentially significant > difference between vncviewer/tigervnc and virt-viewer is that vncviewer > sends a SetEncodings[1] message to the server when it connects, and this > message includes the pseudo-encoding value 0xc0a1e5ce[2], which causes qemu > to enable some clipboard-related functionality. That is the extended clipboard protocol: https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#extended-clipboard-pseudo-encoding GTK-VNC does not implemenet that extension at this time. It only supports the original crude clipboard protocol https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#clientcuttext https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#servercuttext |