From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF220C433E0 for ; Fri, 29 Jan 2021 12:21:10 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 300B864DED for ; Fri, 29 Jan 2021 12:21:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 300B864DED Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55730 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l5Slx-0004D3-44 for qemu-devel@archiver.kernel.org; Fri, 29 Jan 2021 07:21:09 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39242) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l5SH5-0000lA-8Z for qemu-devel@nongnu.org; Fri, 29 Jan 2021 06:49:15 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:32461) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1l5SGz-0002HO-LP for qemu-devel@nongnu.org; Fri, 29 Jan 2021 06:49:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611920948; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+J61+fE0ka76Ot4mKQgM4jdn0gsAMDeFSYAsm93JTgI=; b=NE1BYfytX1Ef2sD9AmnDDFWkaCStQ7TgD7H06QSFdyLDp4+0+RUm2ZfGJ3HYWwb3H7+rZt Wc7dbVRq73qzauUJGYAjle96E6FFD82pKAJ9I/JR11ogiD8ZQboy//hH0BPY4QLzDuKtTT 0Ksgm2TRVyXC9mJtQ7H8DgySsRo+IiA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-91-CW5nlrkIPz2hQNXvhz3dhA-1; Fri, 29 Jan 2021 06:49:06 -0500 X-MC-Unique: CW5nlrkIPz2hQNXvhz3dhA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4AA70911E3 for ; Fri, 29 Jan 2021 11:49:05 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-113-27.ams2.redhat.com [10.36.113.27]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 142FD5C1B4; Fri, 29 Jan 2021 11:49:05 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 1AB3A18000A2; Fri, 29 Jan 2021 12:49:03 +0100 (CET) Date: Fri, 29 Jan 2021 12:49:03 +0100 From: Gerd Hoffmann To: Christophe de Dinechin Subject: Re: vnc clipboard support Message-ID: <20210129114903.nh4vll2fexdigusc@sirius.home.kraxel.org> References: <20210128171224.exbklnwtyb232oe2@sirius.home.kraxel.org> <20210129080323.xuvokq5kytoomx6j@sirius.home.kraxel.org> <8E05F8C9-A60D-45A9-AFCB-79D866F57660@redhat.com> MIME-Version: 1.0 In-Reply-To: <8E05F8C9-A60D-45A9-AFCB-79D866F57660@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.252, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi, > - What I'm suggesting is that qemu-vnc could then switch to simply > relaying VNC traffic to that in-guest server. You'd get the smart update > algorithm that Apple has put in place to deal with transparency and the > like, as well as a level of guest OS integration that would otherwise be > much harder to replicate. Ok, so basically add a vnc proxy mode and allow switching between internals server and proxy mode (automatically if possible, or manually). > If you don't have it, you fallback to virtual keystrokes, which you can't > dispense with because of the early boot case, but which will at best > deal with simple ASCII (making that work with a clipboard containing > tabs and Control-C/Control-V characters is left as an exercise for the > reader ;-) Well, even simple ascii is tricky. How do you send 'z', as KEY_Z or as KEY_Y ? > Finally, an optimization I alluded to is to have an agent which is basically > a stripped-down VNC server dealing with only the clipboard aspect, and > that is your agent. In other words, you don't' invent yet another protocol, > but you furiously copy-paste the existing VNC code. Third mode: proxy only clipboard messages. > Hope this sounds a bit less crazy explained that way… Well, I can't see a way to make all that work nicely fully automatic ... take care, Gerd