From patchwork Tue Jul 4 06:53:49 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Chen X-Patchwork-Id: 9824227 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 216CF60237 for ; Tue, 4 Jul 2017 07:08:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0D8D227F54 for ; Tue, 4 Jul 2017 07:08:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 004FA27F82; Tue, 4 Jul 2017 07:08:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 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.wl.linuxfoundation.org (Postfix) with ESMTPS id 66D4E27F54 for ; Tue, 4 Jul 2017 07:08:16 +0000 (UTC) Received: from localhost ([::1]:38994 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dSHwV-0007Rc-JG for patchwork-qemu-devel@patchwork.kernel.org; Tue, 04 Jul 2017 03:08:15 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43934) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dSHhh-0003hh-2e for qemu-devel@nongnu.org; Tue, 04 Jul 2017 02:52:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dSHhd-00072n-IU for qemu-devel@nongnu.org; Tue, 04 Jul 2017 02:52:57 -0400 Received: from [59.151.112.132] (port=16463 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dSHhd-0006zC-5i for qemu-devel@nongnu.org; Tue, 04 Jul 2017 02:52:53 -0400 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="20826722" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 04 Jul 2017 14:52:43 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id C07E3480199F; Tue, 4 Jul 2017 14:52:42 +0800 (CST) Received: from localhost.localdomain (10.167.226.56) by G08CNEXCHPEKD02.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.319.2; Tue, 4 Jul 2017 14:52:41 +0800 From: Zhang Chen To: qemu devel , Jason Wang Date: Tue, 4 Jul 2017 14:53:49 +0800 Message-ID: <1499151236-14671-6-git-send-email-zhangchen.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1499151236-14671-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> References: <1499151236-14671-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.56] X-yoursite-MailScanner-ID: C07E3480199F.AC025 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: zhangchen.fnst@cn.fujitsu.com X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 59.151.112.132 Subject: [Qemu-devel] [PATCH V7 05/12] net/filter-mirror.c: Add new option to enable vnet support for filter-redirector X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Li Zhijian , zhanghailiang , Zhang Chen Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP We add the vnet_hdr_support option for filter-redirector, default is disabled. If you use virtio-net-pci net driver or other driver needs vnet_hdr, please enable it. Because colo-compare or other modules needs the vnet_hdr_len to parse packet, we add this new option send the len to others. You can use it for example: -object filter-redirector,id=r0,netdev=hn0,queue=tx,outdev=red0,vnet_hdr_support Signed-off-by: Zhang Chen --- net/filter-mirror.c | 23 +++++++++++++++++++++++ qemu-options.hx | 6 +++--- 2 files changed, 26 insertions(+), 3 deletions(-) diff --git a/net/filter-mirror.c b/net/filter-mirror.c index 4a849d4..4127e15 100644 --- a/net/filter-mirror.c +++ b/net/filter-mirror.c @@ -368,6 +368,22 @@ static void filter_redirector_set_outdev(Object *obj, s->outdev = g_strdup(value); } +static bool filter_redirector_get_vnet_hdr(Object *obj, Error **errp) +{ + MirrorState *s = FILTER_REDIRECTOR(obj); + + return s->vnet_hdr; +} + +static void filter_redirector_set_vnet_hdr(Object *obj, + bool value, + Error **errp) +{ + MirrorState *s = FILTER_REDIRECTOR(obj); + + s->vnet_hdr = value; +} + static void filter_mirror_init(Object *obj) { MirrorState *s = FILTER_MIRROR(obj); @@ -383,10 +399,17 @@ static void filter_mirror_init(Object *obj) static void filter_redirector_init(Object *obj) { + MirrorState *s = FILTER_REDIRECTOR(obj); + object_property_add_str(obj, "indev", filter_redirector_get_indev, filter_redirector_set_indev, NULL); object_property_add_str(obj, "outdev", filter_redirector_get_outdev, filter_redirector_set_outdev, NULL); + + s->vnet_hdr = false; + object_property_add_bool(obj, "vnet_hdr_support", + filter_redirector_get_vnet_hdr, + filter_redirector_set_vnet_hdr, NULL); } static void filter_mirror_fini(Object *obj) diff --git a/qemu-options.hx b/qemu-options.hx index f0add6f..3a5951c 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4242,11 +4242,11 @@ queue @var{all|rx|tx} is an option that can be applied to any netfilter. filter-mirror on netdev @var{netdevid},mirror net packet to chardev@var{chardevid}, if it has the vnet_hdr_support flag, filter-mirror will mirror packet with vnet_hdr_len. -@item -object filter-redirector,id=@var{id},netdev=@var{netdevid},indev=@var{chardevid}, -outdev=@var{chardevid}[,queue=@var{all|rx|tx}] +@item -object filter-redirector,id=@var{id},netdev=@var{netdevid},indev=@var{chardevid},outdev=@var{chardevid},queue=@var{all|rx|tx}[,vnet_hdr_support] filter-redirector on netdev @var{netdevid},redirect filter's net packet to chardev -@var{chardevid},and redirect indev's packet to filter. +@var{chardevid},and redirect indev's packet to filter.if it has the vnet_hdr_support flag, +filter-redirector will redirect packet with vnet_hdr_len. Create a filter-redirector we need to differ outdev id from indev id, id can not be the same. we can just use indev or outdev, but at least one of indev or outdev need to be specified.