sipp學習筆記


sipp是一個針對SIP協議進行測試的免費開源工具,可運行於windows/mac/linux,官方地址:http://sipp.sourceforge.net/

一、安裝

本文只介紹mac上的安裝方式,其它平台(windows/linux)的安裝,可參考官方文檔 (注:感謝黃龍舟做的中文翻譯)

brew install sipp

mac上,直接用brew 一行命令搞定安裝,完成后,可用sipp -v查看版本號,參見下圖,目前的版本號是SIPp v3.6.0-PCAP-RTPSTREAM

 

二、uac/uas初體驗

安裝好以后,相信大家已經等不及要體驗一把,既然是打電話,就得有“主叫方(uac)”和“被叫方(uas)” (注:對uac、uas第1次接觸的同學,建議先移步 SIP協議學習筆記 )

2.1 啟動內置的uas場景

sipp -sn uas

如上圖所示,啟動uas后,會在本機開1個端口5061,然后下面會一些SIP信令的實時統計,INVITE文字在“右方向箭頭”右側,表示當前收到的INVITE請求數,180左側的“左方向箭頭”表示回應的振鈴消息數。現在只有被叫,並沒有主叫來電,所以Messages這一欄全是0

 

2.2 啟動內置的uac場景

sipp -sn uac 127.0.0.1:5061

注:最后的“ip:端口”,即為上一步uas啟動的ip地址和端口號,必須匹配。

此時,再回到uas的界面,Messages欄,就不再全是0了

這樣,主叫方(uac)打電話,被叫方(uas)接電話,基本的呼叫流程就通了。 

 

三、理解配置文件

流程雖然跑通了,可能有同學會好奇,uas/uac這2個內置場景,具體邏輯長啥樣?為什么uac的界面,會有100/180/183這些響應碼,沒有其它4xx或5xx之類的碼?除uac/uas,還有其它內置場景嗎?

如上圖,直接輸入sipp,會看到有很多參數說明,其中-sn 表示加載默認的場景,除了uas/uac,還有regexp/branchc/branchs...等其它場景,有興趣的同學可以每種場景都試一下。

另外,還有一個很有用的-sd參數,可以把默認的場景配置,直接導出來,參考下面的命令:

這樣,就把默認的uac/uas這2個場景,導出成xml文件,方便后續研究。打開這2個文件看一下:

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,有點嚇人,但並不難理解:

 a) 5-29行,第一段send,發送INVITE信令,即:准備打電話

 b) 接下來的31-39行,表示期待收到被叫方回過來的100/180/183響應,注意這3小段,都是optional=true,表示預期的響應是可選的,即:對方可以發100/180/183,也可以不發。通俗點講,打一通電話過去,對方可能振鈴或不振鈴(比如:對方已經在通話中,或者話機有問題)

 c) 41行,期待對方回200過來,這里沒有optional=true,表示不是可選的,如果收不到,就無法繼續。

 d) 46-61行,表示上一步收到200后,主叫方發送ACK確認

 e) 64行,pause暫停,但是並沒有指定暫停多久,看注釋,可以在啟動uac時,傳入“-d 暫停時間”指定,這一行相當於電話接起來,模擬雙方在通話,讓電話先不要斷。

 f) 66-81行,表示uac發出bye掛斷信令,結束通話,注 retrans="500",表示如果發送失敗,500ms后,會重發。

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,等待主叫方發送INVITE信令。 

 b) 9-22行收到主叫方的INVITE請求后,先send 180響應,表示振鈴。

 c) 24-46行,發送200 響應,表示被叫方已經ready.

 d) 48-52行,期待對應發過來ACK確認(注:optional=true,表示可選),至此,通話已經建立。

 e) 54-55行,等待被叫方發送掛斷信令BYE

 f) 57-70行,發送200,通知主叫方掛斷完成。

 g) 74行,等4秒,防止上一步的200響應由於網絡原因丟失,留4秒余量,讓對方重發BYE信令。

3.3 自定義scenario配置

除了內置的幾種場景,我們也可以自定義xml配置文件,比如:我們把內置的uas.xml/uac.xml簡化一下,讓主叫方發起呼叫后,被叫方直接掛斷(即:模擬被掛方拒接)

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

使用時,可以用參數-sf加載xml文件

 

三、使用數據文件

3.1 簡單數據文件

測試時,通常需要模擬不同的主被叫號碼,前面的測試中,可能有同學注意到了uac.xml中,From/To是寫死的用戶sipp,能否動態替換用戶名呢?當然可以!

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

創建一個uac_data.csv的文件,內容參考上面。第1行的SEQUENTIAL表示順序讀取,#行表示注釋,第3行開始,定義數據行,每行2列,在uac.xml配置文件中,可以用[field0]、[field1]來占位替換,即:

重新跑一下uac場景,這次要新加參數 -inf uac_data.csv,同時為了方便驗證SIP報文內容,加上-trace_msg

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

跑起來后,應該在當前目錄生成類似uac_xxx_messages.log的日志文件,打開看看占位符[field0]/[field1]是否被替換了。

3.2 動態數據文件

如果模擬的主/被號很多,一行行手動寫有點麻煩,可以用下面的方式自動生成

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

其中PRINTF=N,表示生成多少行,而下面的%03d為占位符,真正運行時,會生成

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

  

四、與freeswitch交互

假設要自動測試1個場景:主叫方撥打1開頭的內線號碼 ,被叫方自動應答。可以在freeswitch的diaplan里,加這么一段:(注:mac上默認的配置文件為/usr/local/freeswitch/conf/dialplan/default.xml)

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

然后用軟電話工具,測試一下:

如上圖,用zoiper終端,以1000身份注冊到freeswitch后,撥打1010號碼 ,在freeswitch的控制台,看到已經自動接聽,然后echo,說明diaplan確實生效了。

用sipp如何來自動測試這一場景呢?顯然對於sipp來說,這是一個uac場景,我們寫一段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   <!-- 發起呼叫 -->
 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   <!-- 期望電話接通后,暫停,由-d參數控制通話時長 -->
38   <pause/>
39 
40   <!-- 通話結束后,自動掛斷 -->
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,貌似沒啥問題,定義相應的數據文件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 為本機freeswitch的ip和端口號

可以看到,並沒有預期的200響應,freeswitch的控制台上,也沒看到預期的answer, echo響應

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 

很多這種錯誤:received 'SIP/2.0 407 Proxy Authentication Required,憑經驗,但凡跟Authentication相關的,多半跟驗證有關。

關閉freeswitch的auth驗證,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   <!-- 把執行sipp機器所在網段,加入到allow列表 -->
6   <node type="allow" cidr="192.168.7.0/24"/>
7 </list>

參考第6行,把相應的網段加到allow列表里。

重啟freeswitch后,再跑一把,會發現仍然沒有預期的返回,sipp終端的messages列,期望的200仍然沒有返回。此時freeswitch控制台,有下列輸出:

同時sipp的錯誤日志時,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

說明freeswitch的SIP返回報文,跟我們想得不一樣,並不是直接返回了200,這時候就要祭出大招:tcpdump抓包工具(注:這里故意為了演示如何使用抓包工具,如果對freeswitch有經驗的同學,可能一眼就能看出freeswitch會先返回100響應碼)

如何抓包,也要有思路,既然用zoiper軟電話工具,能正常跑通,說明freeswitch肯定是沒問題的,那我們就抓zoiper與freeswitch之間的SIP包,抓包步驟:

先確認要抓哪塊網卡:

tcpdump -D會列出本機所有網卡,然后用ifconfig看下各網卡的ip

本文所有測試,都是在mac筆記本上執行的,跟freeswitch相關的ip,只有127.0.0.1及192.168.7.101,也就是上圖中的網卡lo0、en0

注:可能有同學會問,5070在上圖中,lsof -i:5070,不就只有192.168.7.101嗎?為啥還要關注127.0.0.1 ?

輸入命令:

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

即:抓取網卡en0上,端口號為5070的數據包,並將結果寫入sip_en0.log中。抓包工具開啟后,軟電話zoiper呼叫1010,奇怪的是電話接通后,tcpdump里Got 0,也就是並未抓到數據!

然后嘗試抓取127.0.0.1所在網卡lo0,同樣的操作,這次有數據了!(這也就解釋了前面的為什么要關注127.0.0.1所在網卡的原因)

打開抓包的數據文件sip_lo0.log,大致內容如下(已做了整理,方便閱讀):

# 1、 Zoiper向freeswitch 發送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回應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回應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發送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發送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回應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

可以發現,FreeSwitch收到INVITE后,並不是直接回的200,而是先回了100。所以uac的xml要調整一下:

 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   <!-- 加上這個100的接收 -->
33   <recv response="100">
34   </recv>
35 
36   <recv response="200">
37   </recv>
38 
39   <!-- 從抓包來看,zoiper有發送了ACK,但是sipp加上后,一直發不成功,先注釋掉 -->
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,會回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

然后再執行,終於跑起來了!

Freeswitch的控制台,也正常輸出了answer, echo等信息

相信大家看完本文后,對sipp的使用已經入門了,如果遇到復雜場景,不知道如何寫sipp xml時,建議多利用日志文件及抓包工具。  


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