From patchwork Mon Jul 18 06:20:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Chen X-Patchwork-Id: 9234107 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 98D7160756 for ; Mon, 18 Jul 2016 06:29:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7E9EE2094D for ; Mon, 18 Jul 2016 06:29:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 734E2212DA; Mon, 18 Jul 2016 06:29:00 +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 3E24E2094D for ; Mon, 18 Jul 2016 06:28:59 +0000 (UTC) Received: from localhost ([::1]:44705 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bP230-0003fw-Cj for patchwork-qemu-devel@patchwork.kernel.org; Mon, 18 Jul 2016 02:28:58 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60347) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bP1uN-0000nt-Oa for qemu-devel@nongnu.org; Mon, 18 Jul 2016 02:20:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bP1uI-0005b2-Sm for qemu-devel@nongnu.org; Mon, 18 Jul 2016 02:20:02 -0400 Received: from [59.151.112.132] (port=21446 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bP1uH-0005Zd-77 for qemu-devel@nongnu.org; Mon, 18 Jul 2016 02:19:58 -0400 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="8802446" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 18 Jul 2016 14:19:48 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (unknown [10.167.33.83]) by cn.fujitsu.com (Postfix) with ESMTP id 8080B4218F33; Mon, 18 Jul 2016 14:19:46 +0800 (CST) Received: from G08FNSTD140215.g08.fujitsu.local (10.167.226.56) by G08CNEXCHPEKD02.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.279.2; Mon, 18 Jul 2016 14:19:49 +0800 From: Zhang Chen To: qemu devel , Jason Wang Date: Mon, 18 Jul 2016 14:20:57 +0800 Message-ID: <1468822860-25979-2-git-send-email-zhangchen.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1468822860-25979-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> References: <1468822860-25979-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.56] X-yoursite-MailScanner-ID: 8080B4218F33.AFAD9 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] [RFC PATCH V7 1/7] colo-compare: introduce colo compare initialization 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 , "eddie . dong" , "Dr . David Alan Gilbert" , Zhang Chen , zhanghailiang Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This a COLO net ascii figure: Primary qemu Secondary qemu +----------------------------------------------------------+ +----------------------------------------------------------------+ | +-----------------------------------------------------+ | | +-----------------------------------------------------------+ | | | | | | | | | | | guest | | | | guest | | | | | | | | | | | +-------^------------------+--------------------------+ | | +---------------------+--------+----------------------------+ | | | | | | ^ | | | | | | | | | | | | +------------------------------------------------------+ | | | | |netfilter| | | | | | netfilter | | | | +----------+ -----------------------+ | | | +-----------------------------------------------------------+ | | | | | | | | | | | | | filter excute order | | | | | | | | | | | | | | +-------------------> | | | | | | | | | | | | | | TCP | | | | +-----+--+--+ +------v-----+ | +------------+ | | | | +------------+ +---+----+---v+rewriter++ +------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | filter | | filter +----> colo <--------+ +--------> filter +--> adjust | adjust +--> filter | | | | | | mirror | | redirector | | | compare | | | | | | redirector | | ack | seq | | redirector | | | | | | | | | | | | | | | | | | | | | | | | | | | +----^------+ +------------+ | +-----+------+ | | | | +------------+ +--------+--------------+ +---+--------+ | | | | | tx rx | | | | | | tx all | rx | | | | | | | | | | +-----------------------------------------------------------+ | | | | | | | | | | | | | | filter excute order | | | | | | | | | | +-------------------> | | | +------------------------------------------------------------+ | | +-----------------------------------+ | | | | | | | | | | +----------------------------------------------------------+ +----------------------------------------------------------------+ |guest receive |guest send | | +--------+------------------------------------v------------+ | | NOTE: filter direction is rx/tx/all | tap | rx:receive packets sent to the netdev | | tx:receive packets sent by the netdev +----------------------------------------------------------+ In COLO-compare. Packets coming from the primary char indev will be sent to outdev Packets coming from the secondary char dev will be dropped colo-comapre need two input chardev and one output chardev: primary_in=chardev1-id secondary_in=chardev2-id outdev=chardev3-id usage: primary: -netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown -device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66 -chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait -chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait -chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait -chardev socket,id=compare0-0,host=3.3.3.3,port=9001 -chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait -chardev socket,id=compare_out0,host=3.3.3.3,port=9005 -object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0 -object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out -object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0 -object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0 secondary: -netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown -device e1000,netdev=hn0,mac=52:a4:00:12:78:66 -chardev socket,id=red0,host=3.3.3.3,port=9003 -chardev socket,id=red1,host=3.3.3.3,port=9004 -object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0 -object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1 Signed-off-by: Zhang Chen Signed-off-by: Li Zhijian Signed-off-by: Wen Congyang --- net/Makefile.objs | 1 + net/colo-compare.c | 222 +++++++++++++++++++++++++++++++++++++++++++++++++++++ qemu-options.hx | 38 +++++++++ vl.c | 3 +- 4 files changed, 263 insertions(+), 1 deletion(-) create mode 100644 net/colo-compare.c diff --git a/net/Makefile.objs b/net/Makefile.objs index b7c22fd..ba92f73 100644 --- a/net/Makefile.objs +++ b/net/Makefile.objs @@ -16,3 +16,4 @@ common-obj-$(CONFIG_NETMAP) += netmap.o common-obj-y += filter.o common-obj-y += filter-buffer.o common-obj-y += filter-mirror.o +common-obj-y += colo-compare.o diff --git a/net/colo-compare.c b/net/colo-compare.c new file mode 100644 index 0000000..0402958 --- /dev/null +++ b/net/colo-compare.c @@ -0,0 +1,222 @@ +/* + * COarse-grain LOck-stepping Virtual Machines for Non-stop Service (COLO) + * (a.k.a. Fault Tolerance or Continuous Replication) + * + * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD. + * Copyright (c) 2016 FUJITSU LIMITED + * Copyright (c) 2016 Intel Corporation + * + * Author: Zhang Chen + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * later. See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/error-report.h" +#include "qemu-common.h" +#include "qapi/qmp/qerror.h" +#include "qapi/error.h" +#include "net/net.h" +#include "net/vhost_net.h" +#include "qom/object_interfaces.h" +#include "qemu/iov.h" +#include "qom/object.h" +#include "qemu/typedefs.h" +#include "net/queue.h" +#include "sysemu/char.h" +#include "qemu/sockets.h" +#include "qapi-visit.h" + +#define TYPE_COLO_COMPARE "colo-compare" +#define COLO_COMPARE(obj) \ + OBJECT_CHECK(CompareState, (obj), TYPE_COLO_COMPARE) + +#define COMPARE_READ_LEN_MAX NET_BUFSIZE + +typedef struct CompareState { + Object parent; + + char *pri_indev; + char *sec_indev; + char *outdev; + CharDriverState *chr_pri_in; + CharDriverState *chr_sec_in; + CharDriverState *chr_out; + QTAILQ_ENTRY(CompareState) next; + SocketReadState pri_rs; + SocketReadState sec_rs; +} CompareState; + +typedef struct CompareClass { + ObjectClass parent_class; +} CompareClass; + +static char *compare_get_pri_indev(Object *obj, Error **errp) +{ + CompareState *s = COLO_COMPARE(obj); + + return g_strdup(s->pri_indev); +} + +static void compare_set_pri_indev(Object *obj, const char *value, Error **errp) +{ + CompareState *s = COLO_COMPARE(obj); + + g_free(s->pri_indev); + s->pri_indev = g_strdup(value); +} + +static char *compare_get_sec_indev(Object *obj, Error **errp) +{ + CompareState *s = COLO_COMPARE(obj); + + return g_strdup(s->sec_indev); +} + +static void compare_set_sec_indev(Object *obj, const char *value, Error **errp) +{ + CompareState *s = COLO_COMPARE(obj); + + g_free(s->sec_indev); + s->sec_indev = g_strdup(value); +} + +static char *compare_get_outdev(Object *obj, Error **errp) +{ + CompareState *s = COLO_COMPARE(obj); + + return g_strdup(s->outdev); +} + +static void compare_set_outdev(Object *obj, const char *value, Error **errp) +{ + CompareState *s = COLO_COMPARE(obj); + + g_free(s->outdev); + s->outdev = g_strdup(value); +} + +static void compare_pri_rs_finalize(SocketReadState *pri_rs) +{ + /* if packet_enqueue pri pkt failed we will send unsupported packet */ +} + +static void compare_sec_rs_finalize(SocketReadState *sec_rs) +{ + /* if packet_enqueue sec pkt failed we will notify trace */ +} + +/* + * called from the main thread on the primary + * to setup colo-compare. + */ +static void colo_compare_complete(UserCreatable *uc, Error **errp) +{ + CompareState *s = COLO_COMPARE(uc); + + if (!s->pri_indev || !s->sec_indev || !s->outdev) { + error_setg(errp, "colo compare needs 'primary_in' ," + "'secondary_in','outdev' property set"); + return; + } else if (!strcmp(s->pri_indev, s->outdev) || + !strcmp(s->sec_indev, s->outdev) || + !strcmp(s->pri_indev, s->sec_indev)) { + error_setg(errp, "'indev' and 'outdev' could not be same " + "for compare module"); + return; + } + + s->chr_pri_in = qemu_chr_find(s->pri_indev); + if (s->chr_pri_in == NULL) { + error_setg(errp, "Primary IN Device '%s' not found", + s->pri_indev); + return; + } + + s->chr_sec_in = qemu_chr_find(s->sec_indev); + if (s->chr_sec_in == NULL) { + error_setg(errp, "Secondary IN Device '%s' not found", + s->sec_indev); + return; + } + + s->chr_out = qemu_chr_find(s->outdev); + if (s->chr_out == NULL) { + error_setg(errp, "OUT Device '%s' not found", s->outdev); + return; + } + + qemu_chr_fe_claim_no_fail(s->chr_pri_in); + + qemu_chr_fe_claim_no_fail(s->chr_sec_in); + + qemu_chr_fe_claim_no_fail(s->chr_out); + + net_socket_rs_init(&s->pri_rs, compare_pri_rs_finalize); + net_socket_rs_init(&s->sec_rs, compare_sec_rs_finalize); + + return; +} + +static void colo_compare_class_init(ObjectClass *oc, void *data) +{ + UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc); + + ucc->complete = colo_compare_complete; +} + +static void colo_compare_init(Object *obj) +{ + object_property_add_str(obj, "primary_in", + compare_get_pri_indev, compare_set_pri_indev, + NULL); + object_property_add_str(obj, "secondary_in", + compare_get_sec_indev, compare_set_sec_indev, + NULL); + object_property_add_str(obj, "outdev", + compare_get_outdev, compare_set_outdev, + NULL); +} + +static void colo_compare_finalize(Object *obj) +{ + CompareState *s = COLO_COMPARE(obj); + + if (s->chr_pri_in) { + qemu_chr_add_handlers(s->chr_pri_in, NULL, NULL, NULL, NULL); + qemu_chr_fe_release(s->chr_pri_in); + } + if (s->chr_sec_in) { + qemu_chr_add_handlers(s->chr_sec_in, NULL, NULL, NULL, NULL); + qemu_chr_fe_release(s->chr_sec_in); + } + if (s->chr_out) { + qemu_chr_fe_release(s->chr_out); + } + + g_free(s->pri_indev); + g_free(s->sec_indev); + g_free(s->outdev); +} + +static const TypeInfo colo_compare_info = { + .name = TYPE_COLO_COMPARE, + .parent = TYPE_OBJECT, + .instance_size = sizeof(CompareState), + .instance_init = colo_compare_init, + .instance_finalize = colo_compare_finalize, + .class_size = sizeof(CompareClass), + .class_init = colo_compare_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_USER_CREATABLE }, + { } + } +}; + +static void register_types(void) +{ + type_register_static(&colo_compare_info); +} + +type_init(register_types); diff --git a/qemu-options.hx b/qemu-options.hx index 587de8f..79e5896 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -3866,6 +3866,44 @@ Dump the network traffic on netdev @var{dev} to the file specified by The file format is libpcap, so it can be analyzed with tools such as tcpdump or Wireshark. +@item -object colo-compare,id=@var{id},primary_in=@var{chardevid},secondary_in=@var{chardevid}, +outdev=@var{chardevid} + +Colo-compare gets packet from primary_in@var{chardevid} and secondary_in@var{chardevid},than compare primary packet with +secondary packet. if the packet same,we will output primary +packet to outdev@var{chardevid},else we will notify colo-frame +do checkpoint and send primary packet to outdev@var{chardevid}. + +we can use it with the help of filter-mirror and filter-redirector. + +The simple usage: + +@example + +primary: +-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown +-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66 +-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait +-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait +-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait +-chardev socket,id=compare0-0,host=3.3.3.3,port=9001 +-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait +-chardev socket,id=compare_out0,host=3.3.3.3,port=9005 +-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0 +-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out +-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0 +-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0 + +secondary: +-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown +-device e1000,netdev=hn0,mac=52:a4:00:12:78:66 +-chardev socket,id=red0,host=3.3.3.3,port=9003 +-chardev socket,id=red1,host=3.3.3.3,port=9004 +-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0 +-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1 + +@end example + @item -object secret,id=@var{id},data=@var{string},format=@var{raw|base64}[,keyid=@var{secretid},iv=@var{string}] @item -object secret,id=@var{id},file=@var{filename},format=@var{raw|base64}[,keyid=@var{secretid},iv=@var{string}] diff --git a/vl.c b/vl.c index cbe51ac..c6b9a6f 100644 --- a/vl.c +++ b/vl.c @@ -2865,7 +2865,8 @@ static bool object_create_initial(const char *type) if (g_str_equal(type, "filter-buffer") || g_str_equal(type, "filter-dump") || g_str_equal(type, "filter-mirror") || - g_str_equal(type, "filter-redirector")) { + g_str_equal(type, "filter-redirector") || + g_str_equal(type, "colo-compare")) { return false; }