From patchwork Fri Jan 22 08:36:51 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhanghailiang X-Patchwork-Id: 8088231 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 494E99F1CC for ; Fri, 22 Jan 2016 08:37:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B29CD20457 for ; Fri, 22 Jan 2016 08:37:44 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0E53920434 for ; Fri, 22 Jan 2016 08:37:44 +0000 (UTC) Received: from localhost ([::1]:51294 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMXDz-0001Di-EW for patchwork-qemu-devel@patchwork.kernel.org; Fri, 22 Jan 2016 03:37:43 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56401) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMXDo-0001Cr-JJ for qemu-devel@nongnu.org; Fri, 22 Jan 2016 03:37:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aMXDl-0002ve-TQ for qemu-devel@nongnu.org; Fri, 22 Jan 2016 03:37:32 -0500 Received: from szxga01-in.huawei.com ([58.251.152.64]:25805) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMXDl-0002v5-4v for qemu-devel@nongnu.org; Fri, 22 Jan 2016 03:37:29 -0500 Received: from 172.24.1.50 (EHLO szxeml428-hub.china.huawei.com) ([172.24.1.50]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DDP00642; Fri, 22 Jan 2016 16:37:19 +0800 (CST) Received: from localhost (10.177.24.212) by szxeml428-hub.china.huawei.com (10.82.67.183) with Microsoft SMTP Server id 14.3.235.1; Fri, 22 Jan 2016 16:37:10 +0800 From: zhanghailiang To: Date: Fri, 22 Jan 2016 16:36:51 +0800 Message-ID: <1453451811-11860-8-git-send-email-zhang.zhanghailiang@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1453451811-11860-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1453451811-11860-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.24.212] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020201.56A1EA40.0010, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 3a21ef04915a2e3741c3505225ca194e X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 58.251.152.64 Cc: zhanghailiang , jasowang@redhat.com, zhangchen.fnst@cn.fujitsu.com, hongyang.yang@easystack.cn Subject: [Qemu-devel] [PATCH RFC 7/7] net/filter: prevent the default filter to be deleted X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: zhanghailiang --- net/filter.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/net/filter.c b/net/filter.c index a126a3b..4aafff0 100644 --- a/net/filter.c +++ b/net/filter.c @@ -323,11 +323,19 @@ static void netfilter_finalize(Object *obj) g_free(nf->netdev_id); } +static bool netfilter_can_be_deleted(UserCreatable *uc, Error **errp) +{ + NetFilterState *nf = NETFILTER(uc); + /* Forbid the default filter to be deleted */ + return !nf->is_default; +} + static void netfilter_class_init(ObjectClass *oc, void *data) { UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc); ucc->complete = netfilter_complete; + ucc->can_be_deleted = netfilter_can_be_deleted; } static const TypeInfo netfilter_info = {