From patchwork Thu Jul 30 19:47:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vivek Goyal X-Patchwork-Id: 1339023 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=JqfDbsHI; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 4BHgwh4kzwz9sT6 for ; Fri, 31 Jul 2020 05:49:40 +1000 (AEST) Received: from localhost ([::1]:43468 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k1EYc-0004HR-Ci for incoming@patchwork.ozlabs.org; Thu, 30 Jul 2020 15:49:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60148) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k1EXA-0001uV-4Q for qemu-devel@nongnu.org; Thu, 30 Jul 2020 15:48:08 -0400 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:32056 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1k1EX8-0006nQ-Gw for qemu-devel@nongnu.org; Thu, 30 Jul 2020 15:48:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1596138485; 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=PaH6/prDe0zOnbw0p8530Sh7BSPAEfCKXw62zps8Fcw=; b=JqfDbsHI3gZp7mdod1aAZDep1y/AozSZJVND/aAlrYCqvzRj3UohxKGpcWF2PumhskuEhh ZgQTu7KuwKv5/fneq3/hJLFEsPjxDc6pbcfGdjCCEJ9xWChzZrEbC9y2Vqv8SvyRAVbdiV qCXNy0CiW66LYwggpCrC4wuGHQem5C0= 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-506-EYzzquMQPYmMbdvrSRlkPQ-1; Thu, 30 Jul 2020 15:48:03 -0400 X-MC-Unique: EYzzquMQPYmMbdvrSRlkPQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 851D4101C8A0 for ; Thu, 30 Jul 2020 19:48:01 +0000 (UTC) Received: from horse.redhat.com (ovpn-117-166.rdu2.redhat.com [10.10.117.166]) by smtp.corp.redhat.com (Postfix) with ESMTP id 055E05BAC3; Thu, 30 Jul 2020 19:47:56 +0000 (UTC) Received: by horse.redhat.com (Postfix, from userid 10451) id 6F4FD223D09; Thu, 30 Jul 2020 15:47:48 -0400 (EDT) From: Vivek Goyal To: qemu-devel@nongnu.org Subject: [PATCH v2 5/5] virtiofsd: Skip setup_capabilities() in sandbox=NONE mode Date: Thu, 30 Jul 2020 15:47:36 -0400 Message-Id: <20200730194736.173994-6-vgoyal@redhat.com> In-Reply-To: <20200730194736.173994-1-vgoyal@redhat.com> References: <20200730194736.173994-1-vgoyal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.61; envelope-from=vgoyal@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/30 03:41:52 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, 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_H2=-1, 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: berrange@redhat.com, vromanso@redhat.com, dwalsh@redhat.com, dgilbert@redhat.com, virtio-fs@redhat.com, stefanha@redhat.com, vgoyal@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" setup_capabilites() tries to give some of the required capabilities to act as a full fledged file server in priviliged mode. In unpriviliged mode we can't get those capabilities and setup_capabilities() will fail. So don't setup capabilities when sandbox=NONE. Signed-off-by: Vivek Goyal --- tools/virtiofsd/passthrough_ll.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c index a6fa816b6c..1a0b24cbf2 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -3030,7 +3030,8 @@ static void setup_sandbox(struct lo_data *lo, struct fuse_session *se, } setup_seccomp(enable_syslog); - setup_capabilities(g_strdup(lo->modcaps)); + if (lo->sandbox != SANDBOX_NONE) + setup_capabilities(g_strdup(lo->modcaps)); } /* Set the maximum number of open file descriptors */