From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KmoWx-0004Za-Go for qemu-devel@nongnu.org; Mon, 06 Oct 2008 07:45:39 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KmoWv-0004Xm-Om for qemu-devel@nongnu.org; Mon, 06 Oct 2008 07:45:39 -0400 Received: from [199.232.76.173] (port=52912 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KmoWv-0004XR-GT for qemu-devel@nongnu.org; Mon, 06 Oct 2008 07:45:37 -0400 Received: from mis011-2.exch011.intermedia.net ([64.78.17.183]:20629) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1KmoWt-0003Q3-Fu for qemu-devel@nongnu.org; Mon, 06 Oct 2008 07:45:37 -0400 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C927A8.DBBED8BF" Date: Mon, 6 Oct 2008 04:43:58 -0700 Message-ID: From: "Gal Hammer" Subject: [Qemu-devel] [PATCH] USB over network Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org This is a multi-part message in MIME format. ------_=_NextPart_001_01C927A8.DBBED8BF Content-Type: multipart/alternative; boundary="----_=_NextPart_002_01C927A8.DBBED8BF" ------_=_NextPart_002_01C927A8.DBBED8BF Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, =20 Attached is a preliminary patch which add QEmu the ability to use local USB devices over network. It should work with DOK devices and might work with web cameras. =20 Thanks, =20 Gal. =20 ------_=_NextPart_002_01C927A8.DBBED8BF Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi,

 

Attached is a preliminary  patch which add = QEmu the ability to use local USB devices over network. It should work with DOK = devices and might work with web cameras.

 

Thanks,

 

         &= nbsp;      Gal.

 

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helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Kmotn-0007Zn-Um for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:09:15 -0400 Received: from mail.codesourcery.com ([65.74.133.4]:46202) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Kmotn-0005UE-He for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:09:15 -0400 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH] USB over network Date: Mon, 6 Oct 2008 13:09:09 +0100 References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200810061309.10270.paul@codesourcery.com> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Gal Hammer > Attached is a preliminary patch which add QEmu the ability to use local > USB devices over network. It should work with DOK devices and might work > with web cameras. Apart from anything else, it's missing documentation. It looks like you have to start qemu with magic options on the remote machine? This seems a very bad solution. The remote stub should be a separate application which communicated via a documented protocol. Preferably this should be a standardised protocol that is/can be suppoorted by third party devices. Paul From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Kmp72-0004xI-1Q for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:22:56 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Kmp71-0004wK-1V for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:22:55 -0400 Received: from [199.232.76.173] (port=42611 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Kmp70-0004wA-Ty for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:22:54 -0400 Received: from mail.codesourcery.com ([65.74.133.4]:51998) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Kmp70-0003R8-Kp for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:22:54 -0400 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH] USB over network Date: Mon, 6 Oct 2008 13:22:50 +0100 References: <200810061309.10270.paul@codesourcery.com> In-Reply-To: <200810061309.10270.paul@codesourcery.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200810061322.51341.paul@codesourcery.com> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Gal Hammer On Monday 06 October 2008, Paul Brook wrote: > > Attached is a preliminary patch which add QEmu the ability to use local > > USB devices over network. It should work with DOK devices and might work > > with web cameras. > > Apart from anything else, it's missing documentation. > > It looks like you have to start qemu with magic options on the remote > machine? This seems a very bad solution. The remote stub should be a > separate application which communicated via a documented protocol. > Preferably this should be a standardised protocol that is/can be suppoorted > by third party devices. As a specific example, have you looked at http://usbip.sourceforge.net/ ? It doesn't seem to be particularly active, but it's at least a useful reference point to see whether your remote protocol is sane. Paul From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KmpH1-0002tE-UW for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:33:15 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KmpH0-0002sw-Gd for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:33:15 -0400 Received: from [199.232.76.173] (port=47553 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KmpH0-0002sr-CU for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:33:14 -0400 Received: from mx1.redhat.com ([66.187.233.31]:34029) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1KmpH0-00080u-8H for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:33:14 -0400 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id m96CWW5w013157 for ; Mon, 6 Oct 2008 08:32:32 -0400 Received: from file.fab.redhat.com (file.fab.redhat.com [10.33.63.6]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m96CWVDZ011544 for ; Mon, 6 Oct 2008 08:32:31 -0400 Received: from file.fab.redhat.com (localhost.localdomain [127.0.0.1]) by file.fab.redhat.com (8.13.1/8.13.1) with ESMTP id m96CWVoA007301 for ; Mon, 6 Oct 2008 13:32:31 +0100 Received: (from berrange@localhost) by file.fab.redhat.com (8.13.1/8.13.1/Submit) id m96CWVFu007297 for qemu-devel@nongnu.org; Mon, 6 Oct 2008 13:32:31 +0100 Date: Mon, 6 Oct 2008 13:32:31 +0100 From: "Daniel P. Berrange" Subject: Re: [Qemu-devel] [PATCH] USB over network Message-ID: <20081006123230.GP20979@redhat.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Reply-To: "Daniel P. Berrange" , qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On Mon, Oct 06, 2008 at 04:43:58AM -0700, Gal Hammer wrote: > Hi, > > Attached is a preliminary patch which add QEmu the ability to use local > USB devices over network. It should work with DOK devices and might work > with web cameras. AFAICT, the wire protocol doesn't provide for feature negotiation or versioning, which somewhat limits our ability to extend its capabilities in the future. This is a concern since it is also does not appear to have any kind of security model in the existing impl - QEMU will accept incoming client connections from anywhere. I'd like to see at least an upfront feature negotiation/handshake, such that someone could later add support for authentication and/or encryption, eg by layering in GnuTLS and/or Kerberos via GSSAPI/SASL. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :| From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KmpQA-0006ip-DH for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:42:42 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KmpQ8-0006hG-Rc for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:42:41 -0400 Received: from [199.232.76.173] (port=45751 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KmpQ8-0006h7-Gz for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:42:40 -0400 Received: from il.qumranet.com ([212.179.150.194]:38455) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1KmpQ7-0004HT-UI for qemu-devel@nongnu.org; Mon, 06 Oct 2008 08:42:40 -0400 Message-ID: <48EA07CD.9090702@il.qumranet.com> Date: Mon, 06 Oct 2008 14:42:53 +0200 From: Dor Laor MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH] USB over network References: <200810061309.10270.paul@codesourcery.com> <200810061322.51341.paul@codesourcery.com> In-Reply-To: <200810061322.51341.paul@codesourcery.com> Content-Type: multipart/alternative; boundary="------------000607000507010608020800" Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Gal Hammer This is a multi-part message in MIME format. --------------000607000507010608020800 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Paul Brook wrote: > On Monday 06 October 2008, Paul Brook wrote: > >>> Attached is a preliminary patch which add QEmu the ability to use local >>> USB devices over network. It should work with DOK devices and might work >>> with web cameras. >>> >> Apart from anything else, it's missing documentation. >> >> It looks like you have to start qemu with magic options on the remote >> machine? This seems a very bad solution. The remote stub should be a >> separate application which communicated via a documented protocol. >> Preferably this should be a standardised protocol that is/can be suppoorted >> by third party devices. >> > > As a specific example, have you looked at http://usbip.sourceforge.net/ ? > It doesn't seem to be particularly active, but it's at least a useful > reference point to see whether your remote protocol is sane. > > Pau Indeed its missing documentation and the protocol is far from being defined, plus it should be a separate application. But, its a good step forward in usb remoting, the protocol leverage existing knowledge from usbip but it is an opportunity to advance in cumulative steps. The intention is to make the usb remoting transparent to the guest. The application should be stand alone but can share code with qemu, maybe similar to qemu-img application (can it?). Thanks for the feedback, any additional feedback is welcomed. --------------000607000507010608020800 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Paul Brook wrote: 
On Monday 06 October 2008, Paul Brook wrote:
  
Attached is a preliminary  patch which add QEmu the ability to use local
USB devices over network. It should work with DOK devices and might work
with web cameras.
      
Apart from anything else, it's missing documentation.

It looks like you have to start qemu with magic options on the remote
machine? This seems a very bad solution. The remote stub should be a
separate application which communicated via a documented protocol.
Preferably this should be a standardised protocol that is/can be suppoorted
by third party devices.
    

As a specific example, have you looked at  http://usbip.sourceforge.net/ ?
It doesn't seem to be particularly active, but it's at least a useful 
reference point to see whether your remote protocol is sane.

Pau

Indeed its missing documentation and the protocol is far from being defined, plus it should be a separate application.
But, its a good step forward in usb remoting, the protocol leverage existing knowledge from usbip but it is an opportunity
to advance in cumulative steps.

The intention is to make the usb remoting transparent to the guest.
The application should be stand alone but can share code with qemu, maybe similar to qemu-img application (can it?).

Thanks for the feedback, any additional feedback is welcomed.
--------------000607000507010608020800-- From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Kmpwe-0004Vg-Bm for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:16:16 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Kmpwc-0004VQ-GU for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:16:15 -0400 Received: from [199.232.76.173] (port=54317 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Kmpwc-0004VN-Cd for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:16:14 -0400 Received: from mis011-3.exch011.intermedia.net ([64.78.17.184]:61636) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Kmpwc-0003K4-29 for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:16:14 -0400 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Qemu-devel] [PATCH] USB over network Date: Mon, 6 Oct 2008 06:15:58 -0700 Message-ID: In-Reply-To: <200810061309.10270.paul@codesourcery.com> References: <200810061309.10270.paul@codesourcery.com> From: "Gal Hammer" Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org > Apart from anything else, it's missing documentation. I am aware of that. I'll document the work I've done so far and include the open issues that you (and others) wrote. =20 > It looks like you have to start qemu with magic options on the remote > machine? No, qemu should be started with "-usbremote host:port" command line option. This will start a listener which wait for incoming remote connections. The remote connection is established with the qemu-usbd application. The qemu-usbd is executed on the local machine, the one that the USB device is attached to. > This seems a very bad solution. The remote stub should be a separate > application which communicated via a documented protocol. Preferably > this > should be a standardised protocol that is/can be suppoorted by third > party > devices. I wouldn't say that this is a "very bad" solution. A "bad" solution is good enough. :-) At the moment, the protocol is a simple what-usb-linux-want-usb-linux-get approach. I wrote it that way because I couldn't find a standardized protocol for an USB-over-IP (I'm familiar with http://usbip.sourceforge.net project). This also allowed me to use most of the code in usb-linux.c file thereby reducing code duplications. Gal. From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KmqCV-0003pB-TG for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:32:39 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KmqCU-0003oP-Hf for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:32:39 -0400 Received: from [199.232.76.173] (port=58117 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KmqCU-0003oG-8E for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:32:38 -0400 Received: from mail.codesourcery.com ([65.74.133.4]:55280) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1KmqCT-0002m0-0B for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:32:37 -0400 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH] USB over network Date: Mon, 6 Oct 2008 14:32:33 +0100 References: <200810061309.10270.paul@codesourcery.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200810061432.33726.paul@codesourcery.com> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Gal Hammer > > It looks like you have to start qemu with magic options on the remote > > machine? > > No, qemu should be started with "-usbremote host:port" command line > option. This will start a listener which wait for incoming remote > connections. The remote connection is established with the qemu-usbd > application. The qemu-usbd is executed on the local machine, the one > that the USB device is attached to. I don't see any code for building qemu-usbd. > At the moment, the protocol is a simple > what-usb-linux-want-usb-linux-get approach The wire protocol (and the qemu end of the code) should not be linux specific. Was this code really written by Fabrice Bellard? Paul From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KmqL6-0006Yq-IB for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:41:32 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KmqL4-0006Xs-Si for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:41:32 -0400 Received: from [199.232.76.173] (port=51337 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KmqL4-0006Xm-I3 for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:41:30 -0400 Received: from mail-gx0-f19.google.com ([209.85.217.19]:51129) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1KmqL4-0006uj-5I for qemu-devel@nongnu.org; Mon, 06 Oct 2008 09:41:30 -0400 Received: by gxk12 with SMTP id 12so5473882gxk.10 for ; Mon, 06 Oct 2008 06:41:28 -0700 (PDT) Message-ID: <48EA1585.90804@codemonkey.ws> Date: Mon, 06 Oct 2008 08:41:25 -0500 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH] USB over network References: <200810061309.10270.paul@codesourcery.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Gal Hammer wrote: >> Apart from anything else, it's missing documentation. >> > > I am aware of that. I'll document the work I've done so far and include > the open issues that you (and others) wrote. > > >> It looks like you have to start qemu with magic options on the remote >> machine? >> > > No, qemu should be started with "-usbremote host:port" command line > option. This will start a listener which wait for incoming remote > connections. The remote connection is established with the qemu-usbd > application. The qemu-usbd is executed on the local machine, the one > that the USB device is attached to. > I think it would be better to support a push instead of a pull model. For instance, something like: -usbdevice remote:host:port That connected to something that was listening on the machine that had the USB device. If you really wanted a server, I'd suggest a syntax like: -usbdevice remote:host:port,server So at a high level, what's functional now, and how much work is needed to be completely functional? Is there anything that isn't going to work because of fundamental issues? Regards, Anthony Liguori > Gal. > > > > From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Kmqx1-00016D-LY for qemu-devel@nongnu.org; Mon, 06 Oct 2008 10:20:43 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Kmqwz-00014d-HU for qemu-devel@nongnu.org; Mon, 06 Oct 2008 10:20:43 -0400 Received: from [199.232.76.173] (port=44834 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Kmqwz-00014a-6G for qemu-devel@nongnu.org; Mon, 06 Oct 2008 10:20:41 -0400 Received: from mis011-1.exch011.intermedia.net ([64.78.17.182]:12508) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Kmqwy-0006eD-FM for qemu-devel@nongnu.org; Mon, 06 Oct 2008 10:20:41 -0400 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Qemu-devel] [PATCH] USB over network Date: Mon, 6 Oct 2008 07:20:21 -0700 Message-ID: In-Reply-To: <48EA1585.90804@codemonkey.ws> References: <200810061309.10270.paul@codesourcery.com> <48EA1585.90804@codemonkey.ws> From: "Gal Hammer" Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org > I think it would be better to support a push instead of a pull model. > For instance, something like: >=20 > -usbdevice remote:host:port >=20 > That connected to something that was listening on the machine that had > the USB device. If you really wanted a server, I'd suggest a syntax > like: >=20 > -usbdevice remote:host:port,server Thanks for the idea. I'll consider it. Please note that there might be a problem with firewalls or NAT when switching the direction from vnc->qemu to qemu->vnc. =20 > So at a high level, what's functional now, and how much work is needed > to be completely functional? Is there anything that isn't going to > work > because of fundamental issues? It is functional and work with normal bulk transfers (for example DOK). It should work with web cameras (isochronous) but I still need to test it. Gal. From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Kmreb-0005Ym-5d for qemu-devel@nongnu.org; Mon, 06 Oct 2008 11:05:45 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KmreY-0005Y9-GO for qemu-devel@nongnu.org; Mon, 06 Oct 2008 11:05:43 -0400 Received: from [199.232.76.173] (port=59066 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KmreY-0005Y6-DJ for qemu-devel@nongnu.org; Mon, 06 Oct 2008 11:05:42 -0400 Received: from mail-gx0-f19.google.com ([209.85.217.19]:45124) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1KmreX-00025s-T9 for qemu-devel@nongnu.org; Mon, 06 Oct 2008 11:05:42 -0400 Received: by gxk12 with SMTP id 12so5621461gxk.10 for ; Mon, 06 Oct 2008 08:05:40 -0700 (PDT) Message-ID: Date: Mon, 6 Oct 2008 18:05:40 +0300 From: "Blue Swirl" Subject: Re: [Qemu-devel] [PATCH] USB over network In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On 10/6/08, Gal Hammer wrote: > Attached is a preliminary patch which add QEmu the ability to use local USB > devices over network. It should work with DOK devices and might work with > web cameras. How about USB drives or printers, do they work? A few comments: - 'static' can be applied to a lot of functions - instead of including linux/usb_ch9.h, you should define the structures, like in usb-linux.c - while the daemon is linux specific, the remote protocol looks like host OS neutral, so it should not be too tightly tied to usb-linux.c - name __ioctl looks like it could clash with system defines and it's not very descriptive - USB_REMOTE_MAGIC is not endian neutral, or is that the purpose? - upper-case structure names are IMHO ugly Otherwise, great idea! From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KmrwU-0005Qv-UQ for qemu-devel@nongnu.org; Mon, 06 Oct 2008 11:24:15 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KmrwR-0005L8-T5 for qemu-devel@nongnu.org; Mon, 06 Oct 2008 11:24:14 -0400 Received: from [199.232.76.173] (port=59569 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KmrwR-0005KK-H7 for qemu-devel@nongnu.org; Mon, 06 Oct 2008 11:24:11 -0400 Received: from mx2.suse.de ([195.135.220.15]:47720) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1KmrwQ-0001sF-KO for qemu-devel@nongnu.org; Mon, 06 Oct 2008 11:24:11 -0400 Message-ID: <48EA2D91.2060406@suse.de> Date: Mon, 06 Oct 2008 17:24:01 +0200 From: Alexander Graf MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH] USB over network References: <200810061309.10270.paul@codesourcery.com> <48EA1585.90804@codemonkey.ws> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: gal@qumranet.com Gal Hammer wrote: >> I think it would be better to support a push instead of a pull model. >> For instance, something like: >> >> -usbdevice remote:host:port >> >> That connected to something that was listening on the machine that had >> the USB device. If you really wanted a server, I'd suggest a syntax >> like: >> >> -usbdevice remote:host:port,server >> > > Thanks for the idea. I'll consider it. Please note that there might be a > problem with firewalls or NAT when switching the direction from > vnc->qemu to qemu->vnc. > If you're worried about VNC, why not integrate this into the VNC protocol? Best case here would of course be to have it in VNC optionally. Alex From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Kn82J-0004gt-4z for qemu-devel@nongnu.org; Tue, 07 Oct 2008 04:35:19 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Kn82G-0004gY-FH for qemu-devel@nongnu.org; Tue, 07 Oct 2008 04:35:17 -0400 Received: from [199.232.76.173] (port=60153 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Kn82G-0004gV-5O for qemu-devel@nongnu.org; Tue, 07 Oct 2008 04:35:16 -0400 Received: from mx20.gnu.org ([199.232.41.8]:19523) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Kn82F-0006UD-IC for qemu-devel@nongnu.org; Tue, 07 Oct 2008 04:35:15 -0400 Received: from mis011-1.exch011.intermedia.net ([64.78.17.182]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Kn82E-00081e-IY for qemu-devel@nongnu.org; Tue, 07 Oct 2008 04:35:14 -0400 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Subject: RE: [Qemu-devel] [PATCH] USB over network Date: Tue, 7 Oct 2008 01:34:30 -0700 Message-ID: In-Reply-To: References: From: "Gal Hammer" Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org PiBIb3cgYWJvdXQgVVNCIGRyaXZlcyBvciBwcmludGVycywgZG8gdGhleSB3b3JrPw0KDQpCYXNp Y2FsbHksIGlmIGl0IHdvcmtzIGxvY2FsbHksIGl0IHNob3VsZCB3b3JrIG92ZXIgbmV0d29yay4g VGhlIHJlbW90ZSBmZWF0dXJlIHNob3VsZCBiZSBhcyBnb29kIGFzIHRoZSBxZW11J3MgY3VycmVu dCBzdXBwb3J0IGZvciBVU0IgZW11bGF0aW9uLg0KDQo+IEEgZmV3IGNvbW1lbnRzOg0KPiAtICdz dGF0aWMnIGNhbiBiZSBhcHBsaWVkIHRvIGEgbG90IG9mIGZ1bmN0aW9ucw0KDQpJJ2xsIHNlYXJj aCBmb3IgdGhlc2UuDQoNCj4gLSBpbnN0ZWFkIG9mIGluY2x1ZGluZyBsaW51eC91c2JfY2g5Lmgs IHlvdSBzaG91bGQgZGVmaW5lIHRoZQ0KPiBzdHJ1Y3R1cmVzLCBsaWtlIGluIHVzYi1saW51eC5j DQoNCk5vIHByb2JsZW0uDQoNCj4gLSB3aGlsZSB0aGUgZGFlbW9uIGlzIGxpbnV4IHNwZWNpZmlj LCB0aGUgcmVtb3RlIHByb3RvY29sIGxvb2tzIGxpa2UNCj4gaG9zdCBPUyBuZXV0cmFsLCBzbyBp dCBzaG91bGQgbm90IGJlIHRvbyB0aWdodGx5IHRpZWQgdG8gdXNiLWxpbnV4LmMNCg0KVGhlIHBy b3RvY29sIGlzIHN0aWxsIGluIGl0cyBwcmUtZHJhZnQgc3RhdHVzLg0KDQo+IC0gbmFtZSBfX2lv Y3RsIGxvb2tzIGxpa2UgaXQgY291bGQgY2xhc2ggd2l0aCBzeXN0ZW0gZGVmaW5lcyBhbmQgaXQn cw0KPiBub3QgdmVyeSBkZXNjcmlwdGl2ZQ0KDQpXaWxsIGNoYW5nZWQgKERvIHlvdSBoYXZlIGFu IGlkZWEgaG93IHRvIG5hbWUgaXQ/KS4NCg0KPiAtIFVTQl9SRU1PVEVfTUFHSUMgaXMgbm90IGVu ZGlhbiBuZXV0cmFsLCBvciBpcyB0aGF0IHRoZSBwdXJwb3NlPw0KDQpJIGRpZG4ndCB1bmRlcnN0 YW5kLiBEbyB5b3UgbWVhbiB0aGF0IHRoZSB2YWx1ZSBtaWdodCBjaGFuZ2UgaWYgcWVtdSBpcyBy dW5uaW5nIG9uIGEgZGlmZmVyZW50IHR5cGUgb2YgQ1BVPw0KDQo+IC0gdXBwZXItY2FzZSBzdHJ1 Y3R1cmUgbmFtZXMgYXJlIElNSE8gdWdseQ0KDQpDYW4ndCB0YWtlIHRoZSBXaW5kb3dzJyBjb2Rp bmcgY29udmVyc2lvbiBmcm9tIGEgV2luZG93cyBwcm9ncmFtbWVyIDotKS4gSSdsbCBsb3dlciBj YXNlIHRoZW0uDQogDQo+IE90aGVyd2lzZSwgZ3JlYXQgaWRlYSENCg0KVGhhbmtzLiBCdXQgSSBj YW4ndCB0YWtlIHRoZSBjcmVkaXQgZm9yIGl0Lg0KDQogICAgR2FsLg0KDQo= From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KnGyg-0007co-Ld for qemu-devel@nongnu.org; Tue, 07 Oct 2008 14:08:10 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KnGyg-0007cR-96 for qemu-devel@nongnu.org; Tue, 07 Oct 2008 14:08:10 -0400 Received: from [199.232.76.173] (port=44522 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KnGyg-0007cN-0Z for qemu-devel@nongnu.org; Tue, 07 Oct 2008 14:08:10 -0400 Received: from fg-out-1718.google.com ([72.14.220.154]:40627) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1KnGye-0004sK-W0 for qemu-devel@nongnu.org; Tue, 07 Oct 2008 14:08:09 -0400 Received: by fg-out-1718.google.com with SMTP id l26so4238294fgb.8 for ; Tue, 07 Oct 2008 11:08:05 -0700 (PDT) Message-ID: Date: Tue, 7 Oct 2008 21:08:05 +0300 From: "Blue Swirl" Subject: Re: [Qemu-devel] [PATCH] USB over network In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On 10/7/08, Gal Hammer wrote: > > How about USB drives or printers, do they work? > > > Basically, if it works locally, it should work over network. The remote feature should be as good as the qemu's current support for USB emulation. > > > > A few comments: > > - 'static' can be applied to a lot of functions > > > I'll search for these. > > > > - instead of including linux/usb_ch9.h, you should define the > > structures, like in usb-linux.c > > > No problem. > > > > - while the daemon is linux specific, the remote protocol looks like > > host OS neutral, so it should not be too tightly tied to usb-linux.c > > > The protocol is still in its pre-draft status. I meant that also Windows and BSD clients could in theory use a USB device from the Linux-only server, so the client end of the protocol should be independent from usb-linux.c. > > - name __ioctl looks like it could clash with system defines and it's > > not very descriptive > > > Will changed (Do you have an idea how to name it?). USBRemoteIOCTLFunc? > > - USB_REMOTE_MAGIC is not endian neutral, or is that the purpose? > > > I didn't understand. Do you mean that the value might change if qemu is running on a different type of CPU? Yes. That would cause problems if the server is different endian from the client. In fact the whole protocol looks like it also assumes that the server and client are same endian.