利用sipp 模擬voip client

一般VoIP閘道器常遇到和不同SIP伺服器之間有相容性的問題.

若無法透過遠端解決,常需要在本地端進行分析
常用的方式是請客戶抓包,再用wireshark 去解析.
但若看不出所以然,就需要去模擬客戶的行為.
sipp是一個蠻簡單的工具,可以去模擬UAC 或 UAS的行為.
把需要的scenario, header等寫入script ,再去執行即可.

安裝和基本教學在官網裏有詳細的介紹,這裏就不多說了.
http://sipp.sourceforge.net/

底下是以sipp模擬UAC,也就是一般俗稱的CALLER(發話端)

命令如下:
sipp [remote_ip]:[remote_port] -i [local_ip] -p [local_port] -s [service] -sf xxx.xml -l 1
其中 remote_ip為受話IP,可以是SIP SERVER,或CALLEE(受話端)
local ip則為 UAC本身的ip
-s 則為UAC的電話號碼
-sf 則為 script file,
-l 1 指的是執行一次.



<?xml version="1.0" encoding="ISO-8859-1" ?>

<!--  Start Register -->
<!-- usage: sipp [remote_ip]:[remote_port] -i [local_ip] -p [local_port] -s [service] -sf xxx.xml -l 1 -->
<!-- usage: sipp 10.10.10.100:5060 -i 10.10.10.100 -p 5061 -s 5422818 -sf UAC_BasicCaller.xml -r 1 -m 1-->

<scenario name="BasicCaller">  
    <send>
        <![CDATA[
            INVITE sip:[service]@[remote_ip]:[remote_port] SIP/2.0
            Via: SIP/2.0/UDP [local_ip]:[local_port];branch=[branch]
            From: <sip:7010@[local_ip]:[local_port]>;tag=[call_number]
            To: <sip:[service]@[remote_ip]:[remote_port]>
            Call-ID: [call_id]
            CSeq: [cseq] INVITE
            Contact: <sip:7010@[local_ip]:[local_port]>
            Max-Forwards: 70
            User-Agent: fredspqa
            Content-Type: application/sdp
            Content-Length: [len]

            v=0
            o=SIPP 31094920 31094920 IN IP4 [local_ip]
            s=Session
            c=IN IP4 [local_ip]
            t=0 0
            m=audio 33302 RTP/AVP 8
            a=rtpmap:8 PCMA/8000
      ]]>
    </send>
   
    <recv response="100" rtd="true">
    </recv>
   
    <recv response="180" optional="true">
    </recv>

    <recv response="183" optional="true">
    </recv>

    <recv response="200" rtd="true">
        <action>
            <ereg regexp=".*" search_in="hdr" header="To:" assign_to="2"/>
            <ereg regexp=".*" search_in="hdr" header="From:" assign_to="3"/>
            <ereg regexp=".*" search_in="hdr" header="Via:" assign_to="4"/>
        </action>
    </recv>   
   
    <send>
        <![CDATA[
            ACK sip:[service]@[remote_ip]:[remote_port] SIP/2.0
            Via:[$4]
            From: [$2]
            To: [$3]
            Call-ID: [call_id]
            CSeq: [cseq] ACK
            Contact: <sip:7010@[local_ip]:[local_port]>
            Max-Forwards: 70
            User-Agent: fredspqa
            Content-Length: 0
        ]]>
    </send>
   
   
    <!-- wait another port ready        --> 
    <pause milliseconds="3000">
    </pause>
   
    <send retrans="30000">
        <![CDATA[
            BYE sip:[service]@[remote_ip]:[remote_port] SIP/2.0
            Via: SIP/2.0/UDP [local_ip]:[local_port];branch=[branch]
            From: <sip:7010@[local_ip]:[local_port]>;tag=[call_number]
            To: <sip:[service]@[remote_ip]:[remote_port]>[peer_tag_param]
            Call-ID: [call_id]
            CSeq: [cseq] BYE
            Contact: <sip:7010@[local_ip]:[local_port]>
            Max-Forwards: 70
            User-Agent: fredspqa
            Content-Length:  [len]
            Content-Type: application/PulseCharge+xml

            <?xml version="1.0"?>
            <charging-info state="stop">
            </charging-info>
        ]]>
    </send>
   
    <recv response="200">
    </recv>

</scenario>

底下範例則為 以 sipp 當為UAS(受話端或 SIP server)
 命令為
sipp -i 10.10.10.10 -sf uas.xml
這個scenario一開始會持續的等待INVITE.
收到INVITE後會回180RING,
等0.5SEC後回 200 OK
最後再送BYE模擬掛電話的動作


<?xml version="1.0" encoding="windows-1252"?>
<!DOCTYPE scenario SYSTEM "sipp.dtd">
<!-- usage:                                                                         -->
<!-- sipp 10.10.10.10:5060 -i 10.10.10.10 -p 5061 -sf register.xml -r 1 -m 1    -->
<!-- sipp -i 10.10.10.10 -sf uas.xml                                          -->
<!--                                                                    -->
<scenario name="Basic UAS responder">
  <!-- By adding rrs="true" (Record Route Sets), the route sets         -->
  <!-- are saved and used for following messages sent. Useful to test   -->
  <!-- against stateful SIP proxies/B2BUAs.                             -->
  <recv request="INVITE" crlf="true">
  </recv>

  <!-- The '[last_*]' keyword is replaced automatically by the          -->
  <!-- specified header if it was present in the last message received  -->
  <!-- (except if it was a retransmission). If the header was not       -->
  <!-- present or if no message has been received, the '[last_*]'       -->
  <!-- keyword is discarded, and all bytes until the end of the line    -->
  <!-- are also discarded.                                              -->
  <!--                                                                  -->
  <!-- If the specified header was present several times in the         -->
  <!-- message, all occurences are concatenated (CRLF seperated)        -->
  <!-- to be used in place of the '[last_*]' keyword.                   -->

  <send>
    <![CDATA[

      SIP/2.0 180 Ringing
      [last_Via:]
      [last_From:]
      [last_To:];tag=[call_number]
      [last_Call-ID:]
      [last_CSeq:]
      Contact: <sip:[local_ip]:[local_port];transport=[transport]>
      Content-Length: 0

    ]]>
  </send>

  <send retrans="500">
    <![CDATA[

      SIP/2.0 200 OK
      [last_Via:]
      [last_From:]
      [last_To:];tag=[call_number]
      [last_Call-ID:]
      [last_CSeq:]
      Contact: <sip:[local_ip]:[local_port];transport=[transport]>
      Content-Type: application/sdp
      Content-Length: [len]

      v=0
      o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
      s=-
      c=IN IP[media_ip_type] [media_ip]
      t=0 0
      m=audio [media_port] RTP/AVP 0
      a=rtpmap:0 PCMU/8000

    ]]>
  </send>

  <recv request="ACK" optional="true" rtd="true" crlf="true">
  </recv>

  <recv request="BYE">
  </recv>

  <send>
    <![CDATA[

      SIP/2.0 200 OK
      [last_Via:]
      [last_From:]
      [last_To:]
      [last_Call-ID:]
      [last_CSeq:]
      Contact: <sip:[local_ip]:[local_port];transport=[transport]>
      Content-Length: 0

    ]]>
  </send>

  <!-- Keep the call open for a while in case the 200 is lost to be     -->
  <!-- able to retransmit it if we receive the BYE again.               -->
  <pause milliseconds="4000"/>


  <!-- definition of the response time repartition table (unit is ms)   -->
  <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>

  <!-- definition of the call length repartition table (unit is ms)     -->
  <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>

</scenario>

家用網通產品常用測試工具

家用網通產品介紹

1. 大致的分類如下(我所接觸過的啦)

2.  功能列表

網通產品測試常用的Linux Service

最Popular的Linux Server distribution 為Ubuntu Server
最新長期支援（穩定）版為 16.04 LTS（2016 年 04 月發表，五年支援，至 2021 年 04 月）
下載: https://www.ubuntu.com/download/server

常用的 Service:

Python for UI automation (Selenium )

利用Python 來實現UI 自動化的功能.
適合需要反覆設定的測試.
例如設定WiFi Channel 的場合或是讓待測物反覆重開機.

1. Installation

1.1  Install python3 on Windows 7

     https://www.python.org/downloads/

1.2 

1.3  If "api-ms-win-crt-runtime-l1-1-0.dll" error occurs, install VC++2015

1.4  Install pip

        https://jerrynest.io/windows-install-pip/

1.5  Install selenium via pip

     pip install selenium

1.6  Install editor Thonny

        http://thonny.org/

1.7  install selenium firefox web driver

    http://selenium-python.readthedocs.io/installation.html

    https://github.com/mozilla/geckodriver/releases

1.8  Install selenium IDE on firefox

    https://addons.mozilla.org/zh-TW/firefox/addon/selenium-ide/

2. Script example

1.      (Selenium module) Basic - get UI with JS

#優點: like browser and can record web via selenium IDE

#缺點: Slow and complex

from selenium import webdriver

import time

url="http://192.168.0.1//cgi-bin/luci/"

driver = webdriver.Firefox()

driver.get(url)

driver.find_element_by_xpath(u"//input[@type='button' and @value='reboot']").click()

time.sleep(2)

driver.quit()

2.      (Selenium module) Reboot device via UI 10000 times

# -*- coding: utf-8 -*-
# Function1: Login to UI
# Function2: Reboot device
# Function3: Print result output to file
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import Select
from selenium.common.exceptions import NoSuchElementException
from selenium.common.exceptions import NoAlertPresentException
import unittest, time, re, sys, os

class Test(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Firefox()
        self.driver.implicitly_wait(30)
        self.base_ip = "192.168.2.3"
        self.username = "admin"
        self.password = "123"
        self.base_url = "http://"+ self.base_ip
        self.verificationErrors = []
        self.accept_next_alert = True
   
    def test_(self):
        driver = self.driver
        driver.get("http://"+self.username+":"+self.password+"@"+self.base_ip)
        driver.switch_to_alert()
        self.close_alert_and_get_its_text()





        time.sleep(5)
        i = 0
        now = time.strftime("%c")
        now1 = "Current date & time : " + now
        self.wfile("\r\n")
        self.wfile(now1)
        self.wfile("reboot times is ")
        while i <= 10000:
            driver.get(self.base_url + "/cgi-bin/luci/content/system_settings/initialization")
            driver.find_element_by_xpath(u"//input[@type='button' and @value='reboot']").click()
            time.sleep(80)
            i += 1
            self.wfile(", ")
            self.wfile(str(i))
           
    def wfile(self,a):
        wfile=os.path.splitext(__file__)[0]+".txt"
        self.f = open(wfile, 'a', encoding = 'UTF-8')
        f=self.f
        with f as g:
            print(a, end=" ")

            print(a, end=" ", file=g)
        f.close()

    def is_element_present(self, how, what):
        try: self.driver.find_element(by=how, value=what)
        except NoSuchElementException as e: return False
        return True
   
    def is_alert_present(self):
        try: self.driver.switch_to_alert()
        except NoAlertPresentException as e: return False
        return True
   
    def close_alert_and_get_its_text(self):
        try:
            alert = self.driver.switch_to_alert()
            alert_text = alert.text
            if self.accept_next_alert:
                alert.accept()
            else:
                alert.dismiss()
            return alert_text
        finally: self.accept_next_alert = True
       
if __name__ == "__main__":


    unittest.main(exit=False)