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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 9CF9EC31E40 for ; Mon, 12 Aug 2019 21:23:12 +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 6DCEB20684 for ; Mon, 12 Aug 2019 21:23:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6DCEB20684 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]:48422 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hxHmZ-0000m8-NA for qemu-devel@archiver.kernel.org; Mon, 12 Aug 2019 17:23:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42603) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hxHm0-0000HM-Dn for qemu-devel@nongnu.org; Mon, 12 Aug 2019 17:22:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hxHlz-0003M3-HF for qemu-devel@nongnu.org; Mon, 12 Aug 2019 17:22:36 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60728) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hxHlx-0003Jq-Aw; Mon, 12 Aug 2019 17:22:33 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 031E03090FEC; Mon, 12 Aug 2019 21:22:32 +0000 (UTC) Received: from [10.3.117.22] (ovpn-117-22.phx2.redhat.com [10.3.117.22]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 142CC6A74E; Mon, 12 Aug 2019 21:22:30 +0000 (UTC) To: Kevin Wolf References: <20190726140954.31921-1-ptoscano@redhat.com> <20190726140954.31921-3-ptoscano@redhat.com> <549f94df-5d31-3dfe-0693-72a2861ddd7f@redhat.com> <20190729110830.GA5757@localhost.localdomain> From: Eric Blake Openpgp: preference=signencrypt Autocrypt: addr=eblake@redhat.com; keydata= xsBNBEvHyWwBCACw7DwsQIh0kAbUXyqhfiKAKOTVu6OiMGffw2w90Ggrp4bdVKmCaEXlrVLU xphBM8mb+wsFkU+pq9YR621WXo9REYVIl0FxKeQo9dyQBZ/XvmUMka4NOmHtFg74nvkpJFCD TUNzmqfcjdKhfFV0d7P/ixKQeZr2WP1xMcjmAQY5YvQ2lUoHP43m8TtpB1LkjyYBCodd+LkV GmCx2Bop1LSblbvbrOm2bKpZdBPjncRNob73eTpIXEutvEaHH72LzpzksfcKM+M18cyRH+nP sAd98xIbVjm3Jm4k4d5oQyE2HwOur+trk2EcxTgdp17QapuWPwMfhaNq3runaX7x34zhABEB AAHNHkVyaWMgQmxha2UgPGVibGFrZUByZWRoYXQuY29tPsLAegQTAQgAJAIbAwULCQgHAwUV CgkICwUWAgMBAAIeAQIXgAUCS8fL9QIZAQAKCRCnoWtKJSdDahBHCACbl/5FGkUqJ89GAjeX RjpAeJtdKhujir0iS4CMSIng7fCiGZ0fNJCpL5RpViSo03Q7l37ss+No+dJI8KtAp6ID+PMz wTJe5Egtv/KGUKSDvOLYJ9WIIbftEObekP+GBpWP2+KbpADsc7EsNd70sYxExD3liwVJYqLc Rw7so1PEIFp+Ni9A1DrBR5NaJBnno2PHzHPTS9nmZVYm/4I32qkLXOcdX0XElO8VPDoVobG6 gELf4v/vIImdmxLh/w5WctUpBhWWIfQDvSOW2VZDOihm7pzhQodr3QP/GDLfpK6wI7exeu3P pfPtqwa06s1pae3ad13mZGzkBdNKs1HEm8x6zsBNBEvHyWwBCADGkMFzFjmmyqAEn5D+Mt4P zPdO8NatsDw8Qit3Rmzu+kUygxyYbz52ZO40WUu7EgQ5kDTOeRPnTOd7awWDQcl1gGBXgrkR pAlQ0l0ReO57Q0eglFydLMi5bkwYhfY+TwDPMh3aOP5qBXkm4qIYSsxb8A+i00P72AqFb9Q7 3weG/flxSPApLYQE5qWGSXjOkXJv42NGS6o6gd4RmD6Ap5e8ACo1lSMPfTpGzXlt4aRkBfvb NCfNsQikLZzFYDLbQgKBA33BDeV6vNJ9Cj0SgEGOkYyed4I6AbU0kIy1hHAm1r6+sAnEdIKj cHi3xWH/UPrZW5flM8Kqo14OTDkI9EtlABEBAAHCwF8EGAEIAAkFAkvHyWwCGwwACgkQp6Fr SiUnQ2q03wgAmRFGDeXzc58NX0NrDijUu0zx3Lns/qZ9VrkSWbNZBFjpWKaeL1fdVeE4TDGm I5mRRIsStjQzc2R9b+2VBUhlAqY1nAiBDv0Qnt+9cLiuEICeUwlyl42YdwpmY0ELcy5+u6wz mK/jxrYOpzXKDwLq5k4X+hmGuSNWWAN3gHiJqmJZPkhFPUIozZUCeEc76pS/IUN72NfprZmF Dp6/QDjDFtfS39bHSWXKVZUbqaMPqlj/z6Ugk027/3GUjHHr8WkeL1ezWepYDY7WSoXwfoAL 2UXYsMAr/uUncSKlfjvArhsej0S4zbqim2ZY6S8aRWw94J3bSvJR+Nwbs34GPTD4Pg== Organization: Red Hat, Inc. Message-ID: <6432a340-bf63-2850-4f8d-d16d060c5fb6@redhat.com> Date: Mon, 12 Aug 2019 16:22:30 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190729110830.GA5757@localhost.localdomain> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="3LM0JWFQshhqvn8U8Ex5H1GX5YB8PlUsI" X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.43]); Mon, 12 Aug 2019 21:22:32 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] [PATCH 2/2] ssh: implement private key authentication 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: pkrempa@redhat.com, qemu-block@nongnu.org, qemu-devel@nongnu.org, Markus Armbruster , rjones@redhat.com, mreitz@redhat.com, Pino Toscano Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --3LM0JWFQshhqvn8U8Ex5H1GX5YB8PlUsI Content-Type: multipart/mixed; boundary="xZXyVktSl9mjbPPTYR9C90wyIuieDXVjg"; protected-headers="v1" From: Eric Blake To: Kevin Wolf Cc: Pino Toscano , qemu-devel@nongnu.org, qemu-block@nongnu.org, pkrempa@redhat.com, rjones@redhat.com, mreitz@redhat.com, Markus Armbruster Message-ID: <6432a340-bf63-2850-4f8d-d16d060c5fb6@redhat.com> Subject: Re: [Qemu-devel] [PATCH 2/2] ssh: implement private key authentication References: <20190726140954.31921-1-ptoscano@redhat.com> <20190726140954.31921-3-ptoscano@redhat.com> <549f94df-5d31-3dfe-0693-72a2861ddd7f@redhat.com> <20190729110830.GA5757@localhost.localdomain> In-Reply-To: <20190729110830.GA5757@localhost.localdomain> --xZXyVktSl9mjbPPTYR9C90wyIuieDXVjg Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 7/29/19 6:08 AM, Kevin Wolf wrote: >> On a different topic, how much of this work overlaps with the nbdkit s= sh >> plugin? Should we be duplicating efforts with both projects supporting= >> ssh natively, or is it worth considering getting qemu out of the ssh >> business and instead connecting to an nbd device provided by nbdkit >> connecting to ssh? >=20 > ssh behaves essentially like a filesystem whereas NBD behaves like a > block device. This is especially relevant for everything related to the= > file size. As far as I know, using an image format like qcow2 that want= s > to grow the image file isn't possible over NBD, whereas I expect it to > work with the ssh block driver. Resizing NBD devices isn't available yet, but it is rapidly moving higher on my list of TODO items to implement as an extension (the ideas for how it should work have been tossed around, but having code to back up those ideas is the next step). --=20 Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3226 Virtualization: qemu.org | libvirt.org --xZXyVktSl9mjbPPTYR9C90wyIuieDXVjg-- --3LM0JWFQshhqvn8U8Ex5H1GX5YB8PlUsI Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEccLMIrHEYCkn0vOqp6FrSiUnQ2oFAl1R2JYACgkQp6FrSiUn Q2pvnggAm4fUtVSQa75BQ+MWMdln+hnFHqLelwz07FXzwD7yHUdFGmZKqyQlmuO/ XVbp21vLK3r/q7ygMKqvxYJoeWJKcf5AqmzSqER5K4NZXYStVM4BIAxDJUDhGkFy Pkny+YD6QvfJWh04WLf4XfPDWI4NScwVz4odiJ7xOBI3HMeyZw+qmB1tHGvtT+D6 tgr6R6i+P0v2/YA7vIOoJzOWH40lxE6/Ks4odOTHmduO8aXpZ8m/HEgsUfA5dxie nINCIy/oV2ZsHb5ijeKle06Yy6yDQ7esbdEorQkTmQjy7qhn+jw14PuF61SogQKC kWyyJbhDDOehmcUkhW2KNwUw2q8AdQ== =Ya0L -----END PGP SIGNATURE----- --3LM0JWFQshhqvn8U8Ex5H1GX5YB8PlUsI--