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TLS support for VNC Websockets

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Added TLS support to the VNC QEMU Websockets implementation.
VNC-TLS needs to be enabled for this feature to be used.

The required certificates are specified as in case of VNC-TLS
with the VNC parameter "x509=<path>".

If the server certificate isn't signed by a rooth authority it needs to
be manually imported in the browser because at least in case of Firefox
and Chrome there is no user dialog, the connection just gets canceled.

As a side note VEncrypt over Websocket doesn't work atm because TLS can't
be stacked in the current implementation. (It also didn't work before)
Nevertheless to my knowledge there is no HTML 5 VNC client which supports
it and the Websocket connection can be encrypted with regular TLS now so
it should be fine for most use cases.

Signed-off-by: Tim Hardeck <thardeck@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1366727581-5772-1-git-send-email-thardeck@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Tim Hardeck 2013-04-23 16:33:01 +02:00 • committed by Anthony Liguori
parent 8f3b664f6c
commit 0057a0d590
6 changed files with 180 additions and 44 deletions
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2
qemu-options.hx
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@ -1127,6 +1127,8 @@ By definition the Websocket port is 5700+@var{display}. If @var{host} is
specified connections will only be allowed from this host.
As an alternative the Websocket port could be specified by using
@code{websocket}=@var{port}.
TLS encryption for the Websocket connection is supported if the required
certificates are specified with the VNC option @option{x509}.
@item password