From patchwork Fri May 12 01:41:28 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Chen X-Patchwork-Id: 9723413 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 83E4D60364 for ; Fri, 12 May 2017 01:54:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7B3DC287BE for ; Fri, 12 May 2017 01:54:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6EA8E287C1; Fri, 12 May 2017 01:54:16 +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 EA724287BE for ; Fri, 12 May 2017 01:54:15 +0000 (UTC) Received: from localhost ([::1]:50944 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8zmZ-00086z-2X for patchwork-qemu-devel@patchwork.kernel.org; Thu, 11 May 2017 21:54:15 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56143) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8zdR-0000Sr-3z for qemu-devel@nongnu.org; Thu, 11 May 2017 21:44:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d8zdQ-000439-94 for qemu-devel@nongnu.org; Thu, 11 May 2017 21:44:49 -0400 Received: from [59.151.112.132] (port=61908 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8zdP-0003zx-Tc for qemu-devel@nongnu.org; Thu, 11 May 2017 21:44:48 -0400 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="18766965" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 12 May 2017 09:44:46 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id 36B4947C6117; Fri, 12 May 2017 09:44:45 +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 09:44:43 +0800 From: Zhang Chen To: qemu devel , Jason Wang Date: Fri, 12 May 2017 09:41:28 +0800 Message-ID: <1494553288-30764-13-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: 36B4947C6117.ABB96 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 12/12] net/filter-rewriter.c: Make filter-rewriter support vnet_hdr_len 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 get the vnet_hdr_len from NetClientState that make us parse net packet correctly. Signed-off-by: Zhang Chen --- net/filter-rewriter.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/net/filter-rewriter.c b/net/filter-rewriter.c index bc6d12a..be129c7 100644 --- a/net/filter-rewriter.c +++ b/net/filter-rewriter.c @@ -17,6 +17,7 @@ #include "qemu-common.h" #include "qapi/error.h" #include "qapi/qmp/qerror.h" +#include "qemu/error-report.h" #include "qapi-visit.h" #include "qom/object.h" #include "qemu/main-loop.h" @@ -156,10 +157,24 @@ static ssize_t colo_rewriter_receive_iov(NetFilterState *nf, ConnectionKey key; Packet *pkt; ssize_t size = iov_size(iov, iovcnt); + ssize_t vnet_hdr_len = 0; char *buf = g_malloc0(size); iov_to_buf(iov, iovcnt, 0, buf, size); - pkt = packet_new(buf, size, 0); + + if (s->vnet_hdr) { + if (nf->netdev->using_vnet_hdr) { + vnet_hdr_len = nf->netdev->vnet_hdr_len; + } else if (nf->netdev->peer->using_vnet_hdr) { + vnet_hdr_len = nf->netdev->peer->vnet_hdr_len; + } else { + error_report("filter-rewriter get vnet_hdr_len failed"); + /* When error occurred we drop the packet */ + return 1; + } + } + + pkt = packet_new(buf, size, vnet_hdr_len); g_free(buf); /*