[Sipp-users] Verify redirect Server - timing problems

[Moritz G. <mor...@g-...>]

Hi Folks,

i want to check the following scenario:

SIPP               kamailio redirect server
  #                             #
------------------------------->
  INVITE

<-------------------------------
          302 Moved temporartely

So I am sending an INVITE to a kamailio. In the 302 answer the server
submits a redirect destination in the CONTACT-Header. I want to verify
if there is a correct value.

The Check works in 199 from 200 cases. But in this one case the check
fails... and I can't find the reason.

I am calling sipp as follows:
######################################################################
/usr/bin/sipp -trace_err -m 1 -r 5 -timeout 1s -send_timeout 1s
-recv_timeout 1s -f 10 -p 5065 -i 1.2.3.4 -sf
/usr/lib/nagios/plugins/check_redirect_stateless.sipp -inf
/var/lib/nagios/check_redirect_stateless.user 1.2.3.4:5070
######################################################################

The userfile looks like this:
######################################################################
SEQUENTIAL
# $Id: ----
# This is the INPUT-File for check_simple_redirect
# SIPp-Testscript
#server,user,expectedResult
1.2.3.4;B900100491234567;B191000491234567
1.2.3.4;B900200491234567;B291000491234567
######################################################################
First Column: kamailio Server IP
Second Column: The String to be sent in the INVITE in the TO: HEader
Third Column: The String I expect in the Contact: Header

And finaly the sipp check:
######################################################################
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!-- $Id: -----
     This is the SIPp XML-File for a simple Redirect Check
     -->
<scenario name="Test LCR">
  <send>
    <![CDATA[

      INVITE sip:[field1]@[field0]:[remote_port] SIP/2.0
      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
      From: sipp <sip:[field1]@[field0]:[local_port]>;tag=[pid]
      To: sut <sip:[field1]@[field0]>
      Call-ID: [call_id]
      CSeq: 1 INVITE
      Contact: <sip:[field1]@[local_ip]:[local_port];transport=udp>
      Content-Type: application/sdp
      Content-Length: [len]

      v=0
      o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
      s=-
      c=IN IP[local_ip_type] [local_ip]
      t=0 0
      m=audio [auto_media_port] RTP/AVP 8
      a=rtpmap:8 PCMA/8000
      a=rtpmap:101 telephone-event/8000
      a=fmtp:101 0-11,16

    ]]>
  </send>
  <!-- waitr for 302 -->
  <recv response="302" optional="false" next="OK" test="test_OK"
timeout="1">
   <action>
   <!-- regex, contactpart to 'test' -->
    <ereg regexp="<sip:([0-9A-Z]+)@.*" search_in="hdr" header="Contact:"
                case_indep="true" check_it="true" assign_to="null,test"/>
    <!-- field2 to fieldstring save for strcmp -->
    <assignstr assign_to="fieldstring" value="[field2]" />
    <!-- check if contact has correct string and save to result -->
    <strcmp assign_to="result" variable="test" variable2="fieldstring"
                check_it="true"/>
    <log message="result=[$result] test=[$test]
fieldstring=[$fieldstring]" />
    <!-- check if strings are equal -->
    <test assign_to="test_OK" variable="result" compare="equal"
value="0.0" />
   </action>
  </recv>

<!-- recv is only reached if the above check failed-->
<recv response="599" timeout="1"></recv>
<label id="OK" />

  <Reference variables="test"/>
  <Reference variables="result"/>
  <Reference variables="null" />
  <Reference variables="test_OK" />
</scenario>
######################################################################

The ERROR logged by sipp is as follows:
######################################################################
sipp: The following events occured:
2014-01-20	11:17:57:194	1390213077.194807: Call-Id: 1-20926@1.2.3.4,
receive timeout on message Test LCR:1 without label to jump to
(ontimeout attribute): aborting call.
2014-01-20	11:17:57:195	1390213077.195609: Dead call 1-20926@1.2.3.4
(aborted at index 1), received 'SIP/2.0 302 Temporarely Moved
Via: SIP/2.0/UDP 1.2.3.4:5065;branch=z9hG4bK-20926-1-0
From: sipp <sip:B900100491234567@1.2.3.4:5065>;tag=20926
To: sut
<sip:B900100491234567@1.2.3.4>;tag=56398122a1ea83737b581412f70829d1.df04
Call-ID: 1-20926@1.2.3.4
CSeq: 1 INVITE
Contact: <sip:B191000491234567@1.2.3.4:5070>
Server: kamailio (4.0.3 (i386/linux))
Content-Length: 0

'.
######################################################################


Any help appricaiated!!

greetz