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=-5.4 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,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 C2BA1C4363A for ; Mon, 26 Oct 2020 18:06:12 +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 101CB2224E for ; Mon, 26 Oct 2020 18:06:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="V+TkcWRJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 101CB2224E 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]:49814 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kX6sl-0006lc-2n for qemu-devel@archiver.kernel.org; Mon, 26 Oct 2020 14:06:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52904) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kX6Ka-0008Kf-3h for qemu-devel@nongnu.org; Mon, 26 Oct 2020 13:30:53 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:36861) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kX6KX-0001oY-Jc for qemu-devel@nongnu.org; Mon, 26 Oct 2020 13:30:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603733446; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=+vjTXe9xZk0KDIqG5ITJTGeg4lOhws0mil+Ji/UN2zc=; b=V+TkcWRJgy3z9NffKsgdmy8L2Wkzcen2t/34YpgF1rS/+JVY4SId8ByrqmR1RA/pDhz6i3 bZ++r1hGOW2slfQ9Hk2WHHWsIRTuBLAS8a47bkLz1aU+eFvCtcmUJPLjz8EiWyOGWBLh0O GBh9J32J9eZmDHcP8jAJ9GyKlyy5sBM= 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-308-IbWxtS3zOXei3nhoJ47lNQ-1; Mon, 26 Oct 2020 13:30:44 -0400 X-MC-Unique: IbWxtS3zOXei3nhoJ47lNQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C0E10108E1AF for ; Mon, 26 Oct 2020 17:30:43 +0000 (UTC) Received: from work-vm (ovpn-112-208.ams2.redhat.com [10.36.112.208]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B713A19728; Mon, 26 Oct 2020 17:30:32 +0000 (UTC) Date: Mon, 26 Oct 2020 17:30:30 +0000 From: "Dr. David Alan Gilbert" To: qemu-devel@nongnu.org, stefanha@redhat.com, vgoyal@redhat.com, dinechin@redhat.com, virtio-fs@redhat.com Subject: Re: [PATCH v4 0/5] virtiofsd xattr name mappings Message-ID: <20201026173030.GE152260@work-vm> References: <20201023165812.36028-1-dgilbert@redhat.com> MIME-Version: 1.0 In-Reply-To: <20201023165812.36028-1-dgilbert@redhat.com> User-Agent: Mutt/1.14.6 (2020-07-11) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dgilbert@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=63.128.21.124; envelope-from=dgilbert@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/25 21:03:19 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" * Dr. David Alan Gilbert (git) (dgilbert@redhat.com) wrote: > From: "Dr. David Alan Gilbert" > > This is the 4th cut of an xattr name mapping option for virtiofsd. > It allows the user of virtiofsd to define a fairly flexible mapping > from the view of the xattr names the host fs has and the ones that the > guest sees. > > The hope is this allows things like: > a) Different selinux attributes on host/guest > b) separation of trusted. attributes that clash on overlayfs > c) support for privileged xattr's in guests running with an > unprivileged virtiofsd. > > There's no apparent standard for this kind of mapping, so I made > it flexible by specifying a mapping rule in the option. > > Prefix's can be added (selectively or globally), xattr's can be > dropped in either direction or passed through. > > v4 > cleanups from Stefan and Vivek's reviews > > Dave Queued > > > Dr. David Alan Gilbert (5): > tools/virtiofsd: xattr name mappings: Add option > tools/virtiofsd: xattr name mappings: Map client xattr names > tools/virtiofsd: xattr name mappings: Map server xattr names > tools/virtiofsd: xattr name mapping examples > tools/virtiofsd: xattr name mappings: Simple 'map' > > docs/tools/virtiofsd.rst | 161 +++++++++++ > tools/virtiofsd/passthrough_ll.c | 474 ++++++++++++++++++++++++++++++- > 2 files changed, 632 insertions(+), 3 deletions(-) > > -- > 2.28.0 > > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK