From patchwork Tue May 23 14:20:35 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Chen X-Patchwork-Id: 9742805 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 D1B4860388 for ; Tue, 23 May 2017 14:22:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C37861FF20 for ; Tue, 23 May 2017 14:22:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B76D2262FF; Tue, 23 May 2017 14:22:27 +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 405F71FF20 for ; Tue, 23 May 2017 14:22:26 +0000 (UTC) Received: from localhost ([::1]:49279 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDAhd-0002i9-28 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 23 May 2017 10:22:25 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42258) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDAgL-0002gW-1I for qemu-devel@nongnu.org; Tue, 23 May 2017 10:21:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dDAgH-00030P-7g for qemu-devel@nongnu.org; Tue, 23 May 2017 10:21:04 -0400 Received: from [59.151.112.132] (port=60354 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDAgG-0002xH-Kd for qemu-devel@nongnu.org; Tue, 23 May 2017 10:21:01 -0400 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="19208524" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 23 May 2017 22:20:56 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id CFEBC47CA8CC; Tue, 23 May 2017 22:20:54 +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, 23 May 2017 22:20:54 +0800 From: Zhang Chen To: qemu devel , Jason Wang Date: Tue, 23 May 2017 22:20:35 +0800 Message-ID: <1495549241-23380-4-git-send-email-zhangchen.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1495549241-23380-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> References: <1495549241-23380-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.56] X-yoursite-MailScanner-ID: CFEBC47CA8CC.A3803 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 V5 3/9] 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: 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-redirector, default is disable. If you use virtio-net-pci net driver, please enable it. Because colo-compare or other modules needs the vnet_hdr_len to parse packet, so 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=on Signed-off-by: Zhang Chen --- net/filter-mirror.c | 33 +++++++++++++++++++++++++++++++++ qemu-options.hx | 6 +++--- 2 files changed, 36 insertions(+), 3 deletions(-) diff --git a/net/filter-mirror.c b/net/filter-mirror.c index 8df0be6..6c8579f 100644 --- a/net/filter-mirror.c +++ b/net/filter-mirror.c @@ -381,6 +381,13 @@ static char *filter_redirector_get_outdev(Object *obj, Error **errp) return g_strdup(s->outdev); } +static char *filter_redirector_get_vnet_hdr(Object *obj, Error **errp) +{ + MirrorState *s = FILTER_REDIRECTOR(obj); + + return s->vnet_hdr ? g_strdup("on") : g_strdup("off"); +} + static void filter_redirector_set_outdev(Object *obj, const char *value, Error **errp) { @@ -390,6 +397,21 @@ filter_redirector_set_outdev(Object *obj, const char *value, Error **errp) s->outdev = g_strdup(value); } +static void filter_redirector_set_vnet_hdr(Object *obj, + const char *value, + Error **errp) +{ + MirrorState *s = FILTER_REDIRECTOR(obj); + + if (strcmp(value, "on") && strcmp(value, "off")) { + error_setg(errp, "Invalid value for filter-redirector vnet_hdr, " + "should be 'on' or 'off'"); + return; + } + + s->vnet_hdr = !strcmp(value, "on"); +} + static void filter_mirror_init(Object *obj) { MirrorState *s = FILTER_MIRROR(obj); @@ -409,10 +431,21 @@ 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); + + /* + * 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_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 81fb96b..a3c4688 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4028,11 +4028,11 @@ 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 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}] +@item -object filter-redirector,id=@var{id},netdev=@var{netdevid},indev=@var{chardevid},outdev=@var{chardevid},vnet_hdr=@var{on|off}[,queue=@var{all|rx|tx}] 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 vnet_hdr = on, +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.