RE: [Serusers] SUBSCRIBE/NOTIFY and SCS-Client; SER sends wrong To header field - sr-users

26 Apr 2004

Hi,

your fix works fine. Thanks for your help.

  Axel

...
  -----Original Message-----
 From: Jan Janak [mailto:jan@iptel.org]
 Sent: Sunday, April 25, 2004 10:37 PM
 To: Axel Böger
 Cc: serusers(a)lists.iptel.org
 Subject: Re: [Serusers] SUBSCRIBE/NOTIFY and SCS-Client; SER 
 sends wrong To header field

 Thanks for the report ! It should be fixed in the CVS. Could you,
 please, retry and let me know ?

   Jan.

 On 22-04 09:53, Axel Böger wrote:
  Hi,

 I've tried to test the pa module (ser 0.8.12) in   conjunction with the
  SCS Client.
 The SCS Client appends a special generic param: 'ScsId=ch' at the
 From: header in the subscribe message. And the NOTIFY answer from
 ser contains this param but omits the semicolon. So the   NOTIFY message
  will be treated as wrong.

 The ser config for SUBSCRIBE method is straight forward:
   if (method=="SUBSCRIBE")
   {
     if (t_newtran())
     {
       handle_subscription("registrar");
     };
   }; # subscribe

 The ngrep output for this transaction is:
 #
 U 195.4.20.71:5060 -> 194.97.99.50:5060
   SUBSCRIBE sip:snom@fn-sip.mcbone.net SIP/2.0..Via:   SIP/2.0/UDP 195.4.20.71.
    .To: sip:snom@fn-sip.mcbone.net..From:   
<sip:aboeger@fn-sip.mcbone.net>;tag
    =11b78ed1b717552;ScsId=ch..Call-ID:  
dc8b5b893e68391d9b2dfc807f8e3ba2..CSeq:
     1325665313 SUBSCRIBE..Max-Forwards:
70..Contact:   sip:195.4.20.71..Event: p
    resence..Expires: 3600..Content-Length:
0..User-Agent:   SCS/v3.1.12.33....
  #
 U 194.97.99.50:5060 -> 195.4.20.71:5060
   SIP/2.0 200 OK..Via: SIP/2.0/UDP 195.4.20.71..To:   sip:snom@fn-sip.mcbone.ne

t;tag=91083b2aa33cb6d5c9260125dc95d5f0-efd4..From:    <sip:aboeger@fn-sip.mcb

one.net>;tag=11b78ed1b717552;ScsId=ch..Call-ID:   dc8b5b893e68391d9b2dfc807f8
    e3ba2..CSeq: 1325665313 SUBSCRIBE..Server: Sip
EXpress   router (0.8.12a (i38
    6/linux))..Content-Length: 0..Warning: 392 
 194.97.99.50:5060 "Noisy feedbac
    k tells:  pid=26439 req_src_ip=195.4.20.71 
 req_src_port=5060 in_uri=sip:sno
    m(a)fn-sip.mcbone.net
out_uri=sip:snom@fn-sip.mcbone.net   via_cnt==1"....
  #
 U 194.97.99.50:5060 -> 195.4.20.71:5060
   NOTIFY sip:195.4.20.71 SIP/2.0..Via: SIP/2.0/UDP   194.97.99.50;branch=z9hG4b
    K6d55.e01a2e91.0..To:  
<sip:aboeger@fn-sip.mcbone.net>ScsId=ch;tag=11b78ed1b
    717552..From:  
sip:snom@fn-sip.mcbone.net;tag=91083b2aa33cb6d5c9260125dc95d5
    f0-efd4..CSeq: 1 NOTIFY..Call-ID:  
dc8b5b893e68391d9b2dfc807f8e3ba2..Content
    -Length: 302..User-Agent: Sip EXpress
router(0.8.12a   (i386/linux))..Event:
    presence..Content-Type:  
application/xpidf+xml..Subscription-State: active;e
    xpires=3600....<?xml
version="1.0"?>..<!DOCTYPE presence   PUBLIC "//IETF//DT
    D RFCxxxx XPIDF 1.0//EN"  
"xpidf.dtd">..<presence>..<presentity uri="sip:sno

m@fn-sip.mcbone.net;method=SUBSCRIBE"/>..<atom  
id="9r28r49">..<address uri=

"sip:snom@fn-sip.mcbone.net">..<status  
status="closed"/>..</address>..</ato
    m>..</presence>..
 #
 U 195.4.20.71:5060 -> 194.97.99.50:5060
   SIP/2.0 400 Syntax Error..Call-ID:   dc8b5b893e68391d9b2dfc807f8e3ba2..CSeq:
    1 NOTIFY..From:  
sip:snom@fn-sip.mcbone.net;tag=91083b2aa33cb6d5c9260125dc95
    d5f0-efd4..Via: SIP/2.0/UDP  
194.97.99.50;branch=z9hG4bK6d55.e01a2e91.0..Con
    tent-Length: 136..Content-Type:
text/plain....While   parsing "To": header ex
    pected CRLF.. Missing or invalid To header..
Missing or   invalid To header..
     Missing or invalid To header..
 #

 For me it seems to be an error in ser. Have anyone an idea   for a workaround?

   Regards,
     Axel

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