From patchwork Fri May 12 01:41:18 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Chen X-Patchwork-Id: 9723405 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 4AF0C60364 for ; Fri, 12 May 2017 01:50:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 424F92876D for ; Fri, 12 May 2017 01:50:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 37311287BA; Fri, 12 May 2017 01:50:25 +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 AFB892876D for ; Fri, 12 May 2017 01:50:24 +0000 (UTC) Received: from localhost ([::1]:50924 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8zip-0004RH-SS for patchwork-qemu-devel@patchwork.kernel.org; Thu, 11 May 2017 21:50:23 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56032) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8zdG-0000JE-5T for qemu-devel@nongnu.org; Thu, 11 May 2017 21:44:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d8zdE-0003lo-PK for qemu-devel@nongnu.org; Thu, 11 May 2017 21:44:38 -0400 Received: from [59.151.112.132] (port=14198 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8zdE-0003YR-D6 for qemu-devel@nongnu.org; Thu, 11 May 2017 21:44:36 -0400 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="18766947" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 12 May 2017 09:44:34 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id A4FA647C610B; Fri, 12 May 2017 09:44:30 +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; Fri, 12 May 2017 09:44:28 +0800 From: Zhang Chen To: qemu devel , Jason Wang Date: Fri, 12 May 2017 09:41:18 +0800 Message-ID: <1494553288-30764-3-git-send-email-zhangchen.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1494553288-30764-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> References: <1494553288-30764-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.56] X-yoursite-MailScanner-ID: A4FA647C610B.AE876 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 V4 02/12] net/filter-mirror.c: Add new option to enable vnet support for filter-mirror 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: zhanghailiang , Li Zhijian , weifuqiang , "eddie . dong" , Zhang Chen , bian naimeng 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 option for filter-mirror, default is disable. If you use virtio-net-pci net driver, please enable it. You can use it for example: -object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0,vnet_hdr=on Signed-off-by: Zhang Chen --- net/filter-mirror.c | 34 ++++++++++++++++++++++++++++++++++ qemu-options.hx | 5 +++-- 2 files changed, 37 insertions(+), 2 deletions(-) diff --git a/net/filter-mirror.c b/net/filter-mirror.c index 72fa7c2..3766414 100644 --- a/net/filter-mirror.c +++ b/net/filter-mirror.c @@ -38,6 +38,7 @@ typedef struct MirrorState { NetFilterState parent_obj; char *indev; char *outdev; + bool vnet_hdr; CharBackend chr_in; CharBackend chr_out; SocketReadState rs; @@ -308,6 +309,13 @@ static char *filter_mirror_get_outdev(Object *obj, Error **errp) return g_strdup(s->outdev); } +static char *filter_mirror_get_vnet_hdr(Object *obj, Error **errp) +{ + MirrorState *s = FILTER_MIRROR(obj); + + return s->vnet_hdr ? g_strdup("on") : g_strdup("off"); +} + static void filter_mirror_set_outdev(Object *obj, const char *value, Error **errp) { @@ -322,6 +330,21 @@ filter_mirror_set_outdev(Object *obj, const char *value, Error **errp) } } +static void filter_mirror_set_vnet_hdr(Object *obj, + const char *value, + Error **errp) +{ + MirrorState *s = FILTER_MIRROR(obj); + + if (strcmp(value, "on") && strcmp(value, "off")) { + error_setg(errp, "Invalid value for filter-mirror vnet_hdr, " + "should be 'on' or 'off'"); + return; + } + + s->vnet_hdr = !strcmp(value, "on"); +} + static char *filter_redirector_get_outdev(Object *obj, Error **errp) { MirrorState *s = FILTER_REDIRECTOR(obj); @@ -340,8 +363,19 @@ filter_redirector_set_outdev(Object *obj, const char *value, Error **errp) static void filter_mirror_init(Object *obj) { + MirrorState *s = FILTER_MIRROR(obj); + object_property_add_str(obj, "outdev", filter_mirror_get_outdev, filter_mirror_set_outdev, NULL); + + /* + * The vnet_hdr is disabled by default, if you want to enable + * this option, you must enable all the option on related modules + * (like other filter or colo-compare). + */ + s->vnet_hdr = false; + object_property_add_str(obj, "vnet_hdr", filter_mirror_get_vnet_hdr, + filter_mirror_set_vnet_hdr, NULL); } static void filter_redirector_init(Object *obj) diff --git a/qemu-options.hx b/qemu-options.hx index 70c0ded..1e08481 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4024,10 +4024,11 @@ queue @var{all|rx|tx} is an option that can be applied to any netfilter. @option{tx}: the filter is attached to the transmit queue of the netdev, where it will receive packets sent by the netdev. -@item -object filter-mirror,id=@var{id},netdev=@var{netdevid},outdev=@var{chardevid}[,queue=@var{all|rx|tx}] +@item -object filter-mirror,id=@var{id},netdev=@var{netdevid},outdev=@var{chardevid},vnet_hdr=@var{on|off}[,queue=@var{all|rx|tx}] filter-mirror on netdev @var{netdevid},mirror net packet to chardev -@var{chardevid} +@var{chardevid}, if vnet_hdr = on, 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}]