On 2015-04-27 15:24, Alex Wauck wrote:
On Sun, 26 Apr 2015 17:52:55 +0200
gramps@xxxxxxxxxxxxxxx wrote:
Requires 4 stages:
Ctrl-C (in the source VM)
Ctrl-Shift-C (tells Qubes: copy this VM buffer into global clipboard)
Ctrl-Shift-V (in the destination VM: tells Qubes: make global
clipboard
available to this VM)
Ctrl-V (in the destination VM)
Ctrl-Shift-C/V cannot be injected by VMs (unspoofable key combo).
How does this interact with gnome-terminal and konsole? They use
Ctrl-Shift-C/V
for normal copy/paste.
It shouldn't conflict because the super copy paste hotkey combination to
allow a vm to read the global clipboard should come into effect only
when the VM window is in focus rather than the app running inside it.
Then when you paste in the terminal the ctrl-shift-v is pressed again
but when you focus the terminal running inside.
I paraphrased a more clear explanation:
https://www.qubes-os.org/doc/CopyPaste/
Qubes fully supports secure copy and paste operation between domains. In
order to copy a clipboard from domain A to domain B, follow those steps:
Click on the application window in the domain A where you have
selected text for copying. Then use the app-specific hot-key (or menu
option) to copy this into domain’s local clipboard (in other words: do
the copy operation as usual, in most cases by pressing Ctrl-C).
Then (when the app in domain A is still in focus) press Ctrl-Shift-C
magic hot-key. This will tell Qubes that we want to select this domain’s
clipboard for global copy between domains.
Now select the destination app, running in domain B, and press
Ctrl-Shift-V, another magic hot-key that will tell Qubes to make the
clipboard marked in the previous step available to apps running in
domain B. This step is necessary because it ensures that only domain B
will get access to the clipboard copied from domain A, and not any other
domain that might be running in the system.
Now, in the destination app use the app-specific key combination
(usually Ctrl-V) for pasting the clipboard.
Note that the global clipboard will be cleared after step #3, to prevent
accidental leakage to another domain, if the user accidentally pressed
Ctrl-Shift-V later.
This 4-step process might look complex, but after some little practice
it really is very easy and fast. At the same time it provides the user
with full control over who has access to the clipboard.
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