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  • sipp学习笔记

    sipp是一个针对SIP协议进行测试的免费开源工具,可运行于windows/mac/linux,官方地址:http://sipp.sourceforge.net/

    一、安装

    本文只介绍mac上的安装方式,其它平台(windows/linux)的安装,可参考官方文档 (注:感谢黄龙舟做的中文翻译)

    brew install sipp
    

    mac上,直接用brew 一行命令搞定安装,完成后,可用sipp -v查看版本号,参见下图,目前的版本号是SIPp v3.6.0-PCAP-RTPSTREAM

    二、uac/uas初体验

    安装好以后,相信大家已经等不及要体验一把,既然是打电话,就得有“主叫方(uac)”和“被叫方(uas)” (注:对uac、uas第1次接触的同学,建议先移步 SIP协议学习笔记 )

    2.1 启动内置的uas场景

    sipp -sn uas

    如上图所示,启动uas后,会在本机开1个端口5061,然后下面会一些SIP信令的实时统计,INVITE文字在“右方向箭头”右侧,表示当前收到的INVITE请求数,180左侧的“左方向箭头”表示回应的振铃消息数。现在只有被叫,并没有主叫来电,所以Messages这一栏全是0

    2.2 启动内置的uac场景

    sipp -sn uac 127.0.0.1:5061
    

    注:最后的“ip:端口”,即为上一步uas启动的ip地址和端口号,必须匹配。

    此时,再回到uas的界面,Messages栏,就不再全是0了

    这样,主叫方(uac)打电话,被叫方(uas)接电话,基本的呼叫流程就通了。 

    三、理解配置文件

    流程虽然跑通了,可能有同学会好奇,uas/uac这2个内置场景,具体逻辑长啥样?为什么uac的界面,会有100/180/183这些响应码,没有其它4xx或5xx之类的码?除uac/uas,还有其它内置场景吗?

    如上图,直接输入sipp,会看到有很多参数说明,其中-sn 表示加载默认的场景,除了uas/uac,还有regexp/branchc/branchs...等其它场景,有兴趣的同学可以每种场景都试一下。

    另外,还有一个很有用的-sd参数,可以把默认的场景配置,直接导出来,参考下面的命令:

    这样,就把默认的uac/uas这2个场景,导出成xml文件,方便后续研究。打开这2个文件看一下:

    3.1 uac.xml

     1 <?xml version="1.0" encoding="ISO-8859-1" ?>
     2 <!DOCTYPE scenario SYSTEM "sipp.dtd">
     3 
     4 <scenario name="Basic Sipstone UAC">
     5   <send retrans="500">
     6     <![CDATA[
     7 
     8       INVITE sip:[service]@[remote_ip]:[remote_port] SIP/2.0
     9       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    10       From: sipp <sip:sipp@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    11       To: [service] <sip:[service]@[remote_ip]:[remote_port]>
    12       Call-ID: [call_id]
    13       CSeq: 1 INVITE
    14       Contact: sip:sipp@[local_ip]:[local_port]
    15       Max-Forwards: 70
    16       Subject: Performance Test
    17       Content-Type: application/sdp
    18       Content-Length: [len]
    19 
    20       v=0
    21       o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
    22       s=-
    23       c=IN IP[media_ip_type] [media_ip]
    24       t=0 0
    25       m=audio [media_port] RTP/AVP 0
    26       a=rtpmap:0 PCMU/8000
    27 
    28     ]]>
    29   </send>
    30 
    31   <recv response="100"
    32         optional="true">
    33   </recv>
    34 
    35   <recv response="180" optional="true">
    36   </recv>
    37 
    38   <recv response="183" optional="true">
    39   </recv>
    40 
    41   <recv response="200" rtd="true">
    42   </recv>
    43 
    44   <!-- Packet lost can be simulated in any send/recv message by         -->
    45   <!-- by adding the 'lost = "10"'. Value can be [1-100] percent.       -->
    46   <send>
    47     <![CDATA[
    48 
    49       ACK sip:[service]@[remote_ip]:[remote_port] SIP/2.0
    50       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    51       From: sipp <sip:sipp@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    52       To: [service] <sip:[service]@[remote_ip]:[remote_port]>[peer_tag_param]
    53       Call-ID: [call_id]
    54       CSeq: 1 ACK
    55       Contact: sip:sipp@[local_ip]:[local_port]
    56       Max-Forwards: 70
    57       Subject: Performance Test
    58       Content-Length: 0
    59 
    60     ]]>
    61   </send>
    62 
    63   <!-- This delay can be customized by the -d command-line option       -->
    64   <pause/>
    65 
    66   <send retrans="500">
    67     <![CDATA[
    68 
    69       BYE sip:[service]@[remote_ip]:[remote_port] SIP/2.0
    70       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    71       From: sipp <sip:sipp@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    72       To: [service] <sip:[service]@[remote_ip]:[remote_port]>[peer_tag_param]
    73       Call-ID: [call_id]
    74       CSeq: 2 BYE
    75       Contact: sip:sipp@[local_ip]:[local_port]
    76       Max-Forwards: 70
    77       Subject: Performance Test
    78       Content-Length: 0
    79 
    80     ]]>
    81   </send>
    82 
    83   <recv response="200" crlf="true">
    84   </recv>
    85 
    86   <!-- definition of the response time repartition table (unit is ms)   -->
    87   <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
    88 
    89   <!-- definition of the call length repartition table (unit is ms)     -->
    90   <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>
    91 
    92 </scenario>
    uac.xml

     看着貌似一大堆,有点吓人,但并不难理解:

     a) 5-29行,第一段send,发送INVITE信令,即:准备打电话

     b) 接下来的31-39行,表示期待收到被叫方回过来的100/180/183响应,注意这3小段,都是optional=true,表示预期的响应是可选的,即:对方可以发100/180/183,也可以不发。通俗点讲,打一通电话过去,对方可能振铃或不振铃(比如:对方已经在通话中,或者话机有问题)

     c) 41行,期待对方回200过来,这里没有optional=true,表示不是可选的,如果收不到,就无法继续。

     d) 46-61行,表示上一步收到200后,主叫方发送ACK确认

     e) 64行,pause暂停,但是并没有指定暂停多久,看注释,可以在启动uac时,传入“-d 暂停时间”指定,这一行相当于电话接起来,模拟双方在通话,让电话先不要断。

     f) 66-81行,表示uac发出bye挂断信令,结束通话,注 retrans="500",表示如果发送失败,500ms后,会重发。

    3.2 uas.xml

     1 <?xml version="1.0" encoding="ISO-8859-1" ?>
     2 <!DOCTYPE scenario SYSTEM "sipp.dtd">
     3 
     4 <scenario name="Basic UAS responder">
     5 
     6   <recv request="INVITE" crlf="true">
     7   </recv>
     8 
     9   <send>
    10     <![CDATA[
    11 
    12       SIP/2.0 180 Ringing
    13       [last_Via:]
    14       [last_From:]
    15       [last_To:];tag=[pid]SIPpTag01[call_number]
    16       [last_Call-ID:]
    17       [last_CSeq:]
    18       Contact: <sip:[local_ip]:[local_port];transport=[transport]>
    19       Content-Length: 0
    20 
    21     ]]>
    22   </send>
    23 
    24   <send retrans="500">
    25     <![CDATA[
    26 
    27       SIP/2.0 200 OK
    28       [last_Via:]
    29       [last_From:]
    30       [last_To:];tag=[pid]SIPpTag01[call_number]
    31       [last_Call-ID:]
    32       [last_CSeq:]
    33       Contact: <sip:[local_ip]:[local_port];transport=[transport]>
    34       Content-Type: application/sdp
    35       Content-Length: [len]
    36 
    37       v=0
    38       o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
    39       s=-
    40       c=IN IP[media_ip_type] [media_ip]
    41       t=0 0
    42       m=audio [media_port] RTP/AVP 0
    43       a=rtpmap:0 PCMU/8000
    44 
    45     ]]>
    46   </send>
    47 
    48   <recv request="ACK"
    49         optional="true"
    50         rtd="true"
    51         crlf="true">
    52   </recv>
    53 
    54   <recv request="BYE">
    55   </recv>
    56 
    57   <send>
    58     <![CDATA[
    59 
    60       SIP/2.0 200 OK
    61       [last_Via:]
    62       [last_From:]
    63       [last_To:]
    64       [last_Call-ID:]
    65       [last_CSeq:]
    66       Contact: <sip:[local_ip]:[local_port];transport=[transport]>
    67       Content-Length: 0
    68 
    69     ]]>
    70   </send>
    71 
    72   <!-- Keep the call open for a while in case the 200 is lost to be     -->
    73   <!-- able to retransmit it if we receive the BYE again.               -->
    74   <timewait milliseconds="4000"/>
    75 
    76   <!-- definition of the response time repartition table (unit is ms)   -->
    77   <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
    78 
    79   <!-- definition of the call length repartition table (unit is ms)     -->
    80   <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>
    81 
    82 </scenario>
    uas.xml

     a) 6-7行,等待主叫方发送INVITE信令。 

     b) 9-22行收到主叫方的INVITE请求后,先send 180响应,表示振铃。

     c) 24-46行,发送200 响应,表示被叫方已经ready.

     d) 48-52行,期待对应发过来ACK确认(注:optional=true,表示可选),至此,通话已经建立。

     e) 54-55行,等待被叫方发送挂断信令BYE

     f) 57-70行,发送200,通知主叫方挂断完成。

     g) 74行,等4秒,防止上一步的200响应由于网络原因丢失,留4秒余量,让对方重发BYE信令。

    3.3 自定义scenario配置

    除了内置的几种场景,我们也可以自定义xml配置文件,比如:我们把内置的uas.xml/uac.xml简化一下,让主叫方发起呼叫后,被叫方直接挂断(即:模拟被挂方拒接)

    uac2.xml

     1 <?xml version="1.0" encoding="ISO-8859-1" ?>
     2 <!DOCTYPE scenario SYSTEM "sipp.dtd">
     3 
     4 <scenario name="Basic Sipstone UAC">
     5 
     6   <send retrans="500">
     7     <![CDATA[
     8 
     9       INVITE sip:[service]@[remote_ip]:[remote_port] SIP/2.0
    10       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    11       From: sipp <sip:sipp@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    12       To: [service] <sip:[service]@[remote_ip]:[remote_port]>
    13       Call-ID: [call_id]
    14       CSeq: 1 INVITE
    15       Contact: sip:sipp@[local_ip]:[local_port]
    16       Max-Forwards: 70
    17       Subject: Performance Test
    18       Content-Type: application/sdp
    19       Content-Length: [len]
    20 
    21       v=0
    22       o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
    23       s=-
    24       c=IN IP[media_ip_type] [media_ip]
    25       t=0 0
    26       m=audio [media_port] RTP/AVP 0
    27       a=rtpmap:0 PCMU/8000
    28 
    29     ]]>
    30   </send>
    31 
    32   <recv response="200" rtd="true">
    33   </recv>
    34 
    35   <send retrans="500">
    36     <![CDATA[
    37 
    38       BYE sip:[service]@[remote_ip]:[remote_port] SIP/2.0
    39       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    40       From: sipp <sip:sipp@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    41       To: [service] <sip:[service]@[remote_ip]:[remote_port]>[peer_tag_param]
    42       Call-ID: [call_id]
    43       CSeq: 2 BYE
    44       Contact: sip:sipp@[local_ip]:[local_port]
    45       Max-Forwards: 70
    46       Subject: Performance Test
    47       Content-Length: 0
    48 
    49     ]]>
    50   </send>
    51 
    52   <!-- definition of the response time repartition table (unit is ms)   -->
    53   <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
    54 
    55   <!-- definition of the call length repartition table (unit is ms)     -->
    56   <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>
    57 
    58 </scenario>
    uac2.xml

    uas2.xml

     1 <?xml version="1.0" encoding="ISO-8859-1" ?>
     2 <!DOCTYPE scenario SYSTEM "sipp.dtd">
     3 
     4 <scenario name="Basic UAS responder">
     5 
     6   <recv request="INVITE" crlf="true">
     7   </recv>
     8 
     9   <send retrans="500">
    10     <![CDATA[
    11 
    12       SIP/2.0 200 OK
    13       [last_Via:]
    14       [last_From:]
    15       [last_To:];tag=[pid]SIPpTag01[call_number]
    16       [last_Call-ID:]
    17       [last_CSeq:]
    18       Contact: <sip:[local_ip]:[local_port];transport=[transport]>
    19       Content-Type: application/sdp
    20       Content-Length: [len]
    21 
    22       v=0
    23       o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
    24       s=-
    25       c=IN IP[media_ip_type] [media_ip]
    26       t=0 0
    27       m=audio [media_port] RTP/AVP 0
    28       a=rtpmap:0 PCMU/8000
    29 
    30     ]]>
    31   </send>
    32 
    33   <recv request="BYE">
    34   </recv>
    35 
    36   <!-- definition of the response time repartition table (unit is ms)   -->
    37   <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
    38 
    39   <!-- definition of the call length repartition table (unit is ms)     -->
    40   <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>
    41 
    42 </scenario>
    uas2.xml

    使用时,可以用参数-sf加载xml文件

    三、使用数据文件

    3.1 简单数据文件

    测试时,通常需要模拟不同的主被叫号码,前面的测试中,可能有同学注意到了uac.xml中,From/To是写死的用户sipp,能否动态替换用户名呢?当然可以!

    SEQUENTIAL
    #This line will be ignored
    1001;1019
    1002;1018
    1003;1017
    1004;1016
    

    创建一个uac_data.csv的文件,内容参考上面。第1行的SEQUENTIAL表示顺序读取,#行表示注释,第3行开始,定义数据行,每行2列,在uac.xml配置文件中,可以用[field0]、[field1]来占位替换,即:

    重新跑一下uac场景,这次要新加参数 -inf uac_data.csv,同时为了方便验证SIP报文内容,加上-trace_msg

    sipp -sf uac.xml -inf uac_data.csv 127.0.0.1:5060  -trace_msg 
    

    跑起来后,应该在当前目录生成类似uac_xxx_messages.log的日志文件,打开看看占位符[field0]/[field1]是否被替换了。

    3.2 动态数据文件

    如果模拟的主/被号很多,一行行手动写有点麻烦,可以用下面的方式自动生成

    SEQUENTIAL,PRINTF=999
    1%03d;2%03d
    

    其中PRINTF=N,表示生成多少行,而下面的%03d为占位符,真正运行时,会生成

    SEQUENTIAL,PRINTF=999
    1000;2000
    1001;2001
    1002;2002
    1003;2003
    ...
    

      

    四、与freeswitch交互

    假设要自动测试1个场景:主叫方拨打1开头的内线号码 ,被叫方自动应答。可以在freeswitch的diaplan里,加这么一段:(注:mac上默认的配置文件为/usr/local/freeswitch/conf/dialplan/default.xml)

    1 <extension name="auto-answer-sample">
    2       <condition field="destination_number" expression="^10d+$">
    3                   <action application="log" data="******** auto-answer-and-echo **********"/>
    4                   <action application="answer"/>
    5                   <action application="echo"/>
    6       </condition>
    7 </extension>
    View Code

    然后用软电话工具,测试一下:

    如上图,用zoiper终端,以1000身份注册到freeswitch后,拨打1010号码 ,在freeswitch的控制台,看到已经自动接听,然后echo,说明diaplan确实生效了。

    用sipp如何来自动测试这一场景呢?显然对于sipp来说,这是一个uac场景,我们写一段uac_auto_answer.xml

     1 <?xml version="1.0" encoding="ISO-8859-1" ?>
     2 <!DOCTYPE scenario SYSTEM "sipp.dtd">
     3 
     4 <scenario name="uac_auto_answer_test">
     5 
     6   <!-- 发起呼叫 -->
     7   <send retrans="500">
     8     <![CDATA[
     9 
    10       INVITE sip:[field1]@[remote_ip]:[remote_port] SIP/2.0
    11       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    12       From: [field0] <sip:[field0]@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    13       To: [field1] <sip:[field1]@[remote_ip]:[remote_port]>
    14       Call-ID: [call_id]
    15       CSeq: 1 INVITE
    16       Contact: sip:[field0]@[local_ip]:[local_port]
    17       Max-Forwards: 70
    18       Subject: Performance Test
    19       Content-Type: application/sdp
    20       Content-Length: [len]
    21 
    22       v=0
    23       o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
    24       s=-
    25       c=IN IP[media_ip_type] [media_ip]
    26       t=0 0
    27       m=audio [media_port] RTP/AVP 0
    28       a=rtpmap:0 PCMU/8000
    29 
    30     ]]>
    31   </send>
    32 
    33   <!-- 期待freeswitch回200 -->
    34   <recv response="200" rtd="true">
    35   </recv>
    36 
    37   <!-- 期望电话接通后,暂停,由-d参数控制通话时长 -->
    38   <pause/>
    39 
    40   <!-- 通话结束后,自动挂断 -->
    41   <send retrans="500">
    42     <![CDATA[
    43 
    44       BYE sip:[field1]@[remote_ip]:[remote_port] SIP/2.0
    45       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    46       From: [field0] <sip:[field0]@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    47       To: [field1] <sip:[field1]@[remote_ip]:[remote_port]>[peer_tag_param]
    48       Call-ID: [call_id]
    49       CSeq: 2 BYE
    50       Contact: sip:[field0]@[local_ip]:[local_port]
    51       Max-Forwards: 70
    52       Subject: Performance Test
    53       Content-Length: 0
    54 
    55     ]]>
    56   </send>
    57 
    58   <!-- definition of the response time repartition table (unit is ms)   -->
    59   <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
    60 
    61   <!-- definition of the call length repartition table (unit is ms)     -->
    62   <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>
    63 
    64 </scenario>
    uac_auto_answer.xml

    看上去,貌似没啥问题,定义相应的数据文件uac_auto_answer_data.csv

    SEQUENTIAL
    #callerNumber,destNumber
    1000;1010
    1001;1011
    

    跑一把:

    sipp -sf uac_auto_answer.xml -inf uac_auto_answer_data.csv 192.168.7.101:5070 -l 1 -d 10000 -trace_msg -trace_err
    

    其中192.168.7.101:5070 为本机freeswitch的ip和端口号

    可以看到,并没有预期的200响应,freeswitch的控制台上,也没看到预期的answer, echo响应

    查看sipp生成的error日志,可以看到

    '2021-05-16 15:12:01.801909 1621149121.801909: Aborting call on unexpected message for Call-Id '14-90540@192.168.7.101': while expecting '200' (index 1), received 'SIP/2.0 407 Proxy Authentication Required 

    很多这种错误:received 'SIP/2.0 407 Proxy Authentication Required,凭经验,但凡跟Authentication相关的,多半跟验证有关。

    关闭freeswitch的auth验证,方法如下:

    a) /usr/local/freeswitch/conf/vars.xml中,把 internal_auth_calls改成false

    <X-PRE-PROCESS cmd="set" data="internal_auth_calls=false"/>
    

    b) /usr/local/freeswitch/conf/autoload_configs/acl.conf.xml

    1 <list name="domains" default="deny">
    2   <!-- domain= is special it scans the domain from the directory to build the ACL -->
    3   <node type="allow" domain="$${domain}"/>
    4   <!-- use cidr= if you wish to allow ip ranges to this domains acl. -->
    5   <!-- 把执行sipp机器所在网段,加入到allow列表 -->
    6   <node type="allow" cidr="192.168.7.0/24"/>
    7 </list>

    参考第6行,把相应的网段加到allow列表里。

    重启freeswitch后,再跑一把,会发现仍然没有预期的返回,sipp终端的messages列,期望的200仍然没有返回。此时freeswitch控制台,有下列输出:

    同时sipp的错误日志时,有很多487的返回:

    '2021-05-16 15:31:48.012115 1621150308.012115: Dead call 1-96258@192.168.7.101 (aborted at index 1), received 'SIP/2.0 487 Request Terminated
    

    说明freeswitch的SIP返回报文,跟我们想得不一样,并不是直接返回了200,这时候就要祭出大招:tcpdump抓包工具(注:这里故意为了演示如何使用抓包工具,如果对freeswitch有经验的同学,可能一眼就能看出freeswitch会先返回100响应码)

    如何抓包,也要有思路,既然用zoiper软电话工具,能正常跑通,说明freeswitch肯定是没问题的,那我们就抓zoiper与freeswitch之间的SIP包,抓包步骤:

    先确认要抓哪块网卡:

    tcpdump -D会列出本机所有网卡,然后用ifconfig看下各网卡的ip

    本文所有测试,都是在mac笔记本上执行的,跟freeswitch相关的ip,只有127.0.0.1及192.168.7.101,也就是上图中的网卡lo0、en0

    注:可能有同学会问,5070在上图中,lsof -i:5070,不就只有192.168.7.101吗?为啥还要关注127.0.0.1 ?

    输入命令:

    sudo tcpdump -i en0 port 5070 -vv -w sip_en0.log
    

    即:抓取网卡en0上,端口号为5070的数据包,并将结果写入sip_en0.log中。抓包工具开启后,软电话zoiper呼叫1010,奇怪的是电话接通后,tcpdump里Got 0,也就是并未抓到数据!

    然后尝试抓取127.0.0.1所在网卡lo0,同样的操作,这次有数据了!(这也就解释了前面的为什么要关注127.0.0.1所在网卡的原因)

    打开抓包的数据文件sip_lo0.log,大致内容如下(已做了整理,方便阅读):

    # 1、 Zoiper向freeswitch 发送INVITE
    INVITE sip:1011@192.168.7.101:5070;transport=UDP SIP/2.0
    Via: SIP/2.0/UDP 192.168.7.101:5061;branch=z9hG4bK-d8754z-37e95a74eab22936-1---d8754z-;rport
    Max-Forwards: 70
    Contact: <sip:1000@192.168.7.101:5061>
    To: <sip:1011@192.168.7.101:5070>;transport=UDP
    From: "jimmy"<sip:1000@192.168.7.101:5070>;transport=UDP;tag=cfb0773d
    Call-ID: ZjFmMTExZThiNGE5ZWM3YzNiZTMyNWY0ZWUxMTVkMTE.
    CSeq: 1 INVITE
    Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO
    Content-Type: application/sdp
    User-Agent: Zoiper rev.1809
    Content-Length: 306
    
    v=0
    o=Z 0 0 IN IP4 192.168.7.101
    s=Z
    c=IN IP4 192.168.7.101
    t=0 0
    m=audio 8000 RTP/AVP 3 110 98 8 0 101
    a=rtpmap:3 GSM/8000
    a=rtpmap:110 speex/8000
    a=rtpmap:98 iLBC/8000
    a=fmtp:98 mode=30
    a=rtpmap:8 PCMA/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=sendrecv
    
    # 2、 Freeswitch回应100 Trying
    SIP/2.0 100 Trying
    Via: SIP/2.0/UDP 192.168.7.101:5061;branch=z9hG4bK-d8754z-37e95a74eab22936-1---d8754z-;rport=5061
    From: "jimmy" <sip:1000@192.168.7.101:5070>;transport=UDP;tag=cfb0773d
    To: <sip:1011@192.168.7.101:5070>;transport=UDP
    Call-ID: ZjFmMTExZThiNGE5ZWM3YzNiZTMyNWY0ZWUxMTVkMTE.
    CSeq: 1 INVITE
    User-Agent: FreeSWITCH-mod_sofia/1.10.2-release~64bit
    Content-Length: 0
    
    # 3、 Freeswitch回应200 OK
    SIP/2.0 200 OK
    Via: SIP/2.0/UDP 192.168.7.101:5061;branch=z9hG4bK-d8754z-37e95a74eab22936-1---d8754z-;rport=5061
    From: "jimmy" <sip:1000@192.168.7.101:5070>;transport=UDP;tag=cfb0773d
    To: <sip:1011@192.168.7.101:5070>;transport=UDP;tag=8BZ2eg0QStH7H
    Call-ID: ZjFmMTExZThiNGE5ZWM3YzNiZTMyNWY0ZWUxMTVkMTE.
    CSeq: 1 INVITE
    Contact: <sip:1011@192.168.7.101:5070;transport=udp>
    User-Agent: FreeSWITCH-mod_sofia/1.10.2-release~64bit
    Accept: application/sdp
    Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
    Supported: timer, path, replaces
    Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer
    Content-Type: application/sdp
    Content-Disposition: session
    Content-Length: 222
    Remote-Party-ID: "1011" <sip:1011@192.168.7.101>;party=calling;privacy=off;screen=no
    
    v=0
    o=FreeSWITCH 1621133187 1621133188 IN IP4 192.168.7.101
    s=FreeSWITCH
    c=IN IP4 192.168.7.101
    t=0 0
    m=audio 18838 RTP/AVP 8 101
    a=rtpmap:8 PCMA/8000
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-16
    a=ptime:20
    
    # 4、 Zoiper发送ACK
    ACK sip:1011@192.168.7.101:5070;transport=udp SIP/2.0
    Via: SIP/2.0/UDP 192.168.7.101:5061;branch=z9hG4bK-d8754z-20ff2eafb70e0d57-1---d8754z-;rport
    Max-Forwards: 70
    Contact: <sip:1000@192.168.7.101:5061>
    To: <sip:1011@192.168.7.101:5070>;transport=UDP;tag=8BZ2eg0QStH7H
    From: "jimmy"<sip:1000@192.168.7.101:5070>;transport=UDP;tag=cfb0773d
    Call-ID: ZjFmMTExZThiNGE5ZWM3YzNiZTMyNWY0ZWUxMTVkMTE.
    CSeq: 1 ACK
    User-Agent: Zoiper rev.1809
    Content-Length: 0
    
    # 5、Zoiper发送BYE
    BYE sip:1011@192.168.7.101:5070;transport=udp SIP/2.0
    Via: SIP/2.0/UDP 192.168.7.101:5061;branch=z9hG4bK-d8754z-f07268afb96f7be8-1---d8754z-;rport
    Max-Forwards: 70
    Contact: <sip:1000@192.168.7.101:5061>
    To: <sip:1011@192.168.7.101:5070>;transport=UDP;tag=8BZ2eg0QStH7H
    From: "jimmy"<sip:1000@192.168.7.101:5070>;transport=UDP;tag=cfb0773d
    Call-ID: ZjFmMTExZThiNGE5ZWM3YzNiZTMyNWY0ZWUxMTVkMTE.
    CSeq: 2 BYE
    User-Agent: Zoiper rev.1809
    Content-Length: 0
    
    # 6、FreeSWITCH回应200
    SIP/2.0 200 OK
    Via: SIP/2.0/UDP 192.168.7.101:5061;branch=z9hG4bK-d8754z-f07268afb96f7be8-1---d8754z-;rport=5061
    From: "jimmy" <sip:1000@192.168.7.101:5070>;transport=UDP;tag=cfb0773d
    To: <sip:1011@192.168.7.101:5070>;transport=UDP;tag=8BZ2eg0QStH7H
    Call-ID: ZjFmMTExZThiNGE5ZWM3YzNiZTMyNWY0ZWUxMTVkMTE.
    CSeq: 2 BYE
    User-Agent: FreeSWITCH-mod_sofia/1.10.2-release~64bit
    Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
    Supported: timer, path, replaces
    Content-Length: 0
    

    可以发现,FreeSwitch收到INVITE后,并不是直接回的200,而是先回了100。所以uac的xml要调整一下:

     1 <?xml version="1.0" encoding="ISO-8859-1" ?>
     2 <!DOCTYPE scenario SYSTEM "sipp.dtd">
     3 
     4 <scenario name="Basic Sipstone UAC">
     5 
     6   <send retrans="500">
     7     <![CDATA[
     8 
     9       INVITE sip:[field1]@[remote_ip]:[remote_port] SIP/2.0
    10       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    11       From: [field0] <sip:[field0]@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    12       To: [field1] <sip:[field1]@[remote_ip]:[remote_port]>
    13       Call-ID: [call_id]
    14       CSeq: 1 INVITE
    15       Contact: sip:[field0]@[local_ip]:[local_port]
    16       Max-Forwards: 70
    17       Subject: Performance Test
    18       Content-Type: application/sdp
    19       Content-Length: [len]
    20 
    21       v=0
    22       o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
    23       s=-
    24       c=IN IP[media_ip_type] [media_ip]
    25       t=0 0
    26       m=audio [media_port] RTP/AVP 0
    27       a=rtpmap:0 PCMU/8000
    28 
    29     ]]>
    30   </send>
    31 
    32   <!-- 加上这个100的接收 -->
    33   <recv response="100">
    34   </recv>
    35 
    36   <recv response="200">
    37   </recv>
    38 
    39   <!-- 从抓包来看,zoiper有发送了ACK,但是sipp加上后,一直发不成功,先注释掉 -->
    40   <!-- <send retrans="500">
    41     <![CDATA[
    42 
    43       ACK sip:[field1]@[remote_ip]:[remote_port] SIP/2.0
    44       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    45       From: [field0] <sip:[field0]@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    46       To: [field1] <sip:[field1]@[remote_ip]:[remote_port]>[peer_tag_param]
    47       Call-ID: [call_id]
    48       CSeq: 1 ACK
    49       Contact: sip:[field0]@[local_ip]:[local_port]
    50       Max-Forwards: 70
    51       Subject: Performance Test
    52       Content-Length: 0
    53 
    54     ]]>
    55   </send> -->
    56 
    57   <pause/>
    58 
    59   <send retrans="500">
    60     <![CDATA[
    61       BYE sip:[field1]@[remote_ip]:[remote_port] SIP/2.0
    62       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
    63       From: [field0] <sip:[field0]@[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
    64       To: [field1] <sip:[field1]@[remote_ip]:[remote_port]>[peer_tag_param]
    65       Call-ID: [call_id]
    66       CSeq: 2 BYE
    67       Contact: sip:[field0]@[local_ip]:[local_port]
    68       Max-Forwards: 70
    69       Subject: Performance Test
    70       Content-Length: 0
    71     ]]>
    72   </send>
    73 
    74   <!-- freeswitch收到BYE后,会回200 -->
    75   <recv response="200">
    76   </recv>
    77 
    78   <!-- definition of the response time repartition table (unit is ms)   -->
    79   <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
    80 
    81   <!-- definition of the call length repartition table (unit is ms)     -->
    82   <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>
    83 
    84 </scenario>
    View Code

    然后再执行,终于跑起来了!

    Freeswitch的控制台,也正常输出了answer, echo等信息

    相信大家看完本文后,对sipp的使用已经入门了,如果遇到复杂场景,不知道如何写sipp xml时,建议多利用日志文件及抓包工具。  

    作者:菩提树下的杨过
    出处:http://yjmyzz.cnblogs.com
    本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。
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  • 原文地址:https://www.cnblogs.com/yjmyzz/p/sipp-tutorial.html
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