From patchwork Fri May 12 01:41:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Chen X-Patchwork-Id: 9723393 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 0680F60364 for ; Fri, 12 May 2017 01:46:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F1E88287AF for ; Fri, 12 May 2017 01:46:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E684C287B3; Fri, 12 May 2017 01:46:00 +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 7F0AA287AF for ; Fri, 12 May 2017 01:46:00 +0000 (UTC) Received: from localhost ([::1]:50905 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8zeZ-0000Qx-JT for patchwork-qemu-devel@patchwork.kernel.org; Thu, 11 May 2017 21:45:59 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56084) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8zdN-0000PA-JW for qemu-devel@nongnu.org; Thu, 11 May 2017 21:44:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d8zdM-0003wr-Mo for qemu-devel@nongnu.org; Thu, 11 May 2017 21:44:45 -0400 Received: from [59.151.112.132] (port=35788 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d8zdL-0003rG-LQ for qemu-devel@nongnu.org; Thu, 11 May 2017 21:44:44 -0400 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="18766954" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 12 May 2017 09:44:40 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id 252CC47C611C; Fri, 12 May 2017 09:44:41 +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 09:44:39 +0800 From: Zhang Chen To: qemu devel , Jason Wang Date: Fri, 12 May 2017 09:41:24 +0800 Message-ID: <1494553288-30764-9-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: 252CC47C611C.AD7D1 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 08/12] net/colo-compare.c: Make colo-compare 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 COLO-compare can get vnet header length from filter, Add vnet_hdr_len to struct packet and output packet with the vnet_hdr_len. Signed-off-by: Zhang Chen --- net/colo-compare.c | 45 ++++++++++++++++++++++++++++++++++----------- 1 file changed, 34 insertions(+), 11 deletions(-) diff --git a/net/colo-compare.c b/net/colo-compare.c index 87a9529..cb0b04e 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -98,9 +98,10 @@ enum { SECONDARY_IN, }; -static int compare_chr_send(CharBackend *out, +static int compare_chr_send(CompareState *s, const uint8_t *buf, - uint32_t size); + uint32_t size, + uint32_t vnet_hdr_len); static gint seq_sorter(Packet *a, Packet *b, gpointer data) { @@ -473,7 +474,10 @@ static void colo_compare_connection(void *opaque, void *user_data) } if (result) { - ret = compare_chr_send(&s->chr_out, pkt->data, pkt->size); + ret = compare_chr_send(s, + pkt->data, + pkt->size, + pkt->vnet_hdr_len); if (ret < 0) { error_report("colo_send_primary_packet failed"); } @@ -494,9 +498,10 @@ static void colo_compare_connection(void *opaque, void *user_data) } } -static int compare_chr_send(CharBackend *out, +static int compare_chr_send(CompareState *s, const uint8_t *buf, - uint32_t size) + uint32_t size, + uint32_t vnet_hdr_len) { int ret = 0; uint32_t len = htonl(size); @@ -505,12 +510,24 @@ static int compare_chr_send(CharBackend *out, return 0; } - ret = qemu_chr_fe_write_all(out, (uint8_t *)&len, sizeof(len)); + ret = qemu_chr_fe_write_all(&s->chr_out, (uint8_t *)&len, sizeof(len)); if (ret != sizeof(len)) { goto err; } - ret = qemu_chr_fe_write_all(out, (uint8_t *)buf, size); + if (s->vnet_hdr) { + /* + * We send vnet header len make other module(like filter-redirector) + * know how to parse net packet correctly. + */ + len = htonl(vnet_hdr_len); + ret = qemu_chr_fe_write_all(&s->chr_out, (uint8_t *)&len, sizeof(len)); + if (ret != sizeof(len)) { + goto err; + } + } + + ret = qemu_chr_fe_write_all(&s->chr_out, (uint8_t *)buf, size); if (ret != size) { goto err; } @@ -535,7 +552,7 @@ static void compare_pri_chr_in(void *opaque, const uint8_t *buf, int size) CompareState *s = COLO_COMPARE(opaque); int ret; - ret = net_fill_rstate(&s->pri_rs, buf, size, false); + ret = net_fill_rstate(&s->pri_rs, buf, size, s->vnet_hdr); if (ret == -1) { qemu_chr_fe_set_handlers(&s->chr_pri_in, NULL, NULL, NULL, NULL, NULL, true); @@ -552,7 +569,7 @@ static void compare_sec_chr_in(void *opaque, const uint8_t *buf, int size) CompareState *s = COLO_COMPARE(opaque); int ret; - ret = net_fill_rstate(&s->sec_rs, buf, size, false); + ret = net_fill_rstate(&s->sec_rs, buf, size, s->vnet_hdr); if (ret == -1) { qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL, NULL, NULL, true); @@ -675,7 +692,10 @@ static void compare_pri_rs_finalize(SocketReadState *pri_rs) if (packet_enqueue(s, PRIMARY_IN)) { trace_colo_compare_main("primary: unsupported packet in"); - compare_chr_send(&s->chr_out, pri_rs->buf, pri_rs->packet_len); + compare_chr_send(s, + pri_rs->buf, + pri_rs->packet_len, + pri_rs->vnet_hdr_len); } else { /* compare connection */ g_queue_foreach(&s->conn_list, colo_compare_connection, s); @@ -783,7 +803,10 @@ static void colo_flush_packets(void *opaque, void *user_data) while (!g_queue_is_empty(&conn->primary_list)) { pkt = g_queue_pop_head(&conn->primary_list); - compare_chr_send(&s->chr_out, pkt->data, pkt->size); + compare_chr_send(s, + pkt->data, + pkt->size, + pkt->vnet_hdr_len); packet_destroy(pkt, NULL); } while (!g_queue_is_empty(&conn->secondary_list)) {