colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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/*
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* COarse-grain LOck-stepping Virtual Machines for Non-stop Service (COLO)
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* (a.k.a. Fault Tolerance or Continuous Replication)
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*
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* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
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* Copyright (c) 2016 FUJITSU LIMITED
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* Copyright (c) 2016 Intel Corporation
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*
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* Author: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qemu/error-report.h"
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2016-09-27 02:22:27 +00:00
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#include "trace.h"
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colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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#include "qemu-common.h"
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#include "qapi/qmp/qerror.h"
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#include "qapi/error.h"
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#include "net/net.h"
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#include "qom/object_interfaces.h"
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#include "qemu/iov.h"
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#include "qom/object.h"
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#include "qemu/typedefs.h"
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#include "net/queue.h"
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#include "sysemu/char.h"
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#include "qemu/sockets.h"
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#include "qapi-visit.h"
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2016-09-27 02:22:27 +00:00
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#include "net/colo.h"
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colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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#define TYPE_COLO_COMPARE "colo-compare"
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#define COLO_COMPARE(obj) \
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OBJECT_CHECK(CompareState, (obj), TYPE_COLO_COMPARE)
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2016-09-27 02:22:29 +00:00
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#define MAX_QUEUE_SIZE 1024
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2016-09-27 02:22:27 +00:00
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/*
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+ CompareState ++
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| |
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+---------------+ +---------------+ +---------------+
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|conn list +--->conn +--------->conn |
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+---------------+ +---------------+ +---------------+
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| | | | | |
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+---------------+ +---v----+ +---v----+ +---v----+ +---v----+
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|primary | |secondary |primary | |secondary
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|packet | |packet + |packet | |packet +
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+--------+ +--------+ +--------+ +--------+
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| | | |
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+---v----+ +---v----+ +---v----+ +---v----+
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|primary | |secondary |primary | |secondary
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|packet | |packet + |packet | |packet +
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+--------+ +--------+ +--------+ +--------+
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| | | |
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+---v----+ +---v----+ +---v----+ +---v----+
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|primary | |secondary |primary | |secondary
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|packet | |packet + |packet | |packet +
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+--------+ +--------+ +--------+ +--------+
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*/
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colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
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typedef struct CompareState {
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Object parent;
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char *pri_indev;
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char *sec_indev;
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char *outdev;
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CharDriverState *chr_pri_in;
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CharDriverState *chr_sec_in;
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CharDriverState *chr_out;
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SocketReadState pri_rs;
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SocketReadState sec_rs;
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2016-09-27 02:22:27 +00:00
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2016-09-27 02:22:29 +00:00
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/* connection list: the connections belonged to this NIC could be found
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* in this list.
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* element type: Connection
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*/
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GQueue conn_list;
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2016-09-27 02:22:27 +00:00
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/* hashtable to save connection */
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GHashTable *connection_track_table;
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colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
} CompareState;
|
|
|
|
|
|
|
|
typedef struct CompareClass {
|
|
|
|
ObjectClass parent_class;
|
|
|
|
} CompareClass;
|
|
|
|
|
|
|
|
typedef struct CompareChardevProps {
|
|
|
|
bool is_socket;
|
|
|
|
} CompareChardevProps;
|
|
|
|
|
2016-09-27 02:22:27 +00:00
|
|
|
enum {
|
|
|
|
PRIMARY_IN = 0,
|
|
|
|
SECONDARY_IN,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int compare_chr_send(CharDriverState *out,
|
|
|
|
const uint8_t *buf,
|
|
|
|
uint32_t size);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Return 0 on success, if return -1 means the pkt
|
|
|
|
* is unsupported(arp and ipv6) and will be sent later
|
|
|
|
*/
|
|
|
|
static int packet_enqueue(CompareState *s, int mode)
|
|
|
|
{
|
2016-09-27 02:22:29 +00:00
|
|
|
ConnectionKey key;
|
2016-09-27 02:22:27 +00:00
|
|
|
Packet *pkt = NULL;
|
2016-09-27 02:22:29 +00:00
|
|
|
Connection *conn;
|
2016-09-27 02:22:27 +00:00
|
|
|
|
|
|
|
if (mode == PRIMARY_IN) {
|
|
|
|
pkt = packet_new(s->pri_rs.buf, s->pri_rs.packet_len);
|
|
|
|
} else {
|
|
|
|
pkt = packet_new(s->sec_rs.buf, s->sec_rs.packet_len);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (parse_packet_early(pkt)) {
|
|
|
|
packet_destroy(pkt, NULL);
|
|
|
|
pkt = NULL;
|
|
|
|
return -1;
|
|
|
|
}
|
2016-09-27 02:22:29 +00:00
|
|
|
fill_connection_key(pkt, &key);
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2016-09-27 02:22:29 +00:00
|
|
|
conn = connection_get(s->connection_track_table,
|
|
|
|
&key,
|
|
|
|
&s->conn_list);
|
2016-09-27 02:22:27 +00:00
|
|
|
|
2016-09-27 02:22:29 +00:00
|
|
|
if (!conn->processing) {
|
|
|
|
g_queue_push_tail(&s->conn_list, conn);
|
|
|
|
conn->processing = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mode == PRIMARY_IN) {
|
|
|
|
if (g_queue_get_length(&conn->primary_list) <=
|
|
|
|
MAX_QUEUE_SIZE) {
|
|
|
|
g_queue_push_tail(&conn->primary_list, pkt);
|
|
|
|
} else {
|
|
|
|
error_report("colo compare primary queue size too big,"
|
|
|
|
"drop packet");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (g_queue_get_length(&conn->secondary_list) <=
|
|
|
|
MAX_QUEUE_SIZE) {
|
|
|
|
g_queue_push_tail(&conn->secondary_list, pkt);
|
|
|
|
} else {
|
|
|
|
error_report("colo compare secondary queue size too big,"
|
|
|
|
"drop packet");
|
|
|
|
}
|
|
|
|
}
|
2016-09-27 02:22:27 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int compare_chr_send(CharDriverState *out,
|
|
|
|
const uint8_t *buf,
|
|
|
|
uint32_t size)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
uint32_t len = htonl(size);
|
|
|
|
|
|
|
|
if (!size) {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = qemu_chr_fe_write_all(out, (uint8_t *)&len, sizeof(len));
|
|
|
|
if (ret != sizeof(len)) {
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = qemu_chr_fe_write_all(out, (uint8_t *)buf, size);
|
|
|
|
if (ret != size) {
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err:
|
|
|
|
return ret < 0 ? ret : -EIO;
|
|
|
|
}
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
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)
|
|
|
|
{
|
2016-09-27 02:22:27 +00:00
|
|
|
CompareState *s = container_of(pri_rs, CompareState, 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);
|
|
|
|
}
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void compare_sec_rs_finalize(SocketReadState *sec_rs)
|
|
|
|
{
|
2016-09-27 02:22:27 +00:00
|
|
|
CompareState *s = container_of(sec_rs, CompareState, sec_rs);
|
|
|
|
|
|
|
|
if (packet_enqueue(s, SECONDARY_IN)) {
|
|
|
|
trace_colo_compare_main("secondary: unsupported packet in");
|
|
|
|
}
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int compare_chardev_opts(void *opaque,
|
|
|
|
const char *name, const char *value,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
CompareChardevProps *props = opaque;
|
|
|
|
|
|
|
|
if (strcmp(name, "backend") == 0 &&
|
|
|
|
strcmp(value, "socket") == 0) {
|
|
|
|
props->is_socket = true;
|
|
|
|
return 0;
|
|
|
|
} else if (strcmp(name, "host") == 0 ||
|
|
|
|
(strcmp(name, "port") == 0) ||
|
|
|
|
(strcmp(name, "server") == 0) ||
|
|
|
|
(strcmp(name, "wait") == 0) ||
|
|
|
|
(strcmp(name, "path") == 0)) {
|
|
|
|
return 0;
|
|
|
|
} else {
|
|
|
|
error_setg(errp,
|
|
|
|
"COLO-compare does not support a chardev with option %s=%s",
|
|
|
|
name, value);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Return 0 is success.
|
|
|
|
* Return 1 is failed.
|
|
|
|
*/
|
|
|
|
static int find_and_check_chardev(CharDriverState **chr,
|
|
|
|
char *chr_name,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
CompareChardevProps props;
|
|
|
|
|
|
|
|
*chr = qemu_chr_find(chr_name);
|
|
|
|
if (*chr == NULL) {
|
|
|
|
error_setg(errp, "Device '%s' not found",
|
|
|
|
chr_name);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
memset(&props, 0, sizeof(props));
|
|
|
|
if (qemu_opt_foreach((*chr)->opts, compare_chardev_opts, &props, errp)) {
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!props.is_socket) {
|
|
|
|
error_setg(errp, "chardev \"%s\" is not a tcp socket",
|
|
|
|
chr_name);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (find_and_check_chardev(&s->chr_pri_in, s->pri_indev, errp)) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (find_and_check_chardev(&s->chr_sec_in, s->sec_indev, errp)) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (find_and_check_chardev(&s->chr_out, s->outdev, errp)) {
|
|
|
|
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);
|
|
|
|
|
2016-09-27 02:22:29 +00:00
|
|
|
g_queue_init(&s->conn_list);
|
|
|
|
|
|
|
|
s->connection_track_table = g_hash_table_new_full(connection_key_hash,
|
|
|
|
connection_key_equal,
|
|
|
|
g_free,
|
|
|
|
connection_destroy);
|
2016-09-27 02:22:27 +00:00
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2016-09-27 02:22:29 +00:00
|
|
|
g_queue_free(&s->conn_list);
|
|
|
|
|
colo-compare: introduce colo compare initialization
This a COLO net ascii figure:
Primary qemu Secondary qemu
+--------------------------------------------------------------+ +----------------------------------------------------------------+
| +----------------------------------------------------------+ | | +-----------------------------------------------------------+ |
| | | | | | | |
| | guest | | | | guest | |
| | | | | | | |
| +-------^--------------------------+-----------------------+ | | +---------------------+--------+----------------------------+ |
| | | | | ^ | |
| | | | | | | |
| | +------------------------------------------------------+ | | | |
|netfilter| | | | | | netfilter | | |
| +----------+ +----------------------------+ | | | +-----------------------------------------------------------+ |
| | | | | | out | | | | | | filter excute order | |
| | | | +-----------------------------+ | | | | | | +-------------------> | |
| | | | | | | | | | | | | | TCP | |
| | +-----+--+-+ +-----v----+ +-----v----+ |pri +----+----+sec| | | | +------------+ +---+----+---v+rewriter++ +------------+ | |
| | | | | | | | |in | |in | | | | | | | | | | | | |
| | | filter | | filter | | filter +------> colo <------+ +--------> filter +--> adjust | adjust +--> filter | | |
| | | mirror | |redirector| |redirector| | | compare | | | | | | redirector | | ack | seq | | redirector | | |
| | | | | | | | | | | | | | | | | | | | | | | |
| | +----^-----+ +----+-----+ +----------+ | +---------+ | | | | +------------+ +--------+--------------+ +---+--------+ | |
| | | tx | rx 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, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 02:22:26 +00:00
|
|
|
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);
|