Hi all,
I found a bug in Sipp 3.1.
I have got following <send> segment with INVITE message
<send><![CDATA[INVITE sip:[EMAIL PROTECTED]:[remote_port] SIP/2.0
Content-Type: application/sdp
Supported: timer
Supported: 100rel
Supported: replaces
Allow: INVITE,ACK,CANCEL,BYE,REFER,NOTIFY,MESSAGE,UPDATE
Allow-Events: talk, hold
Min-SE: 90
Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
From: 49897221800 <sip:[EMAIL PROTECTED]>;tag=JLwMhQLm3CFC
To: <sip:[EMAIL PROTECTED]>
Call-ID: uN4Et_evv_Tb///[call_id]
CSeq: [cseq] INVITE
Contact: <sip:[EMAIL PROTECTED]:[local_port];transport=[transport]>
Max-Forwards: 70
Subject: OSCAR-ITT
Content-Length: [len]
v=0
o=user1 53655765 4339583258 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
a=sendrecv
]]>
</send>
In the sipp v2.0.1 it works fine and sipp sends INVITE messge with CRLF at end
of SDP. But sipp 3.1 sends this message without CRLF at the end. It leads that
this message is rejected by some servers that are strict on the SDP parsing.
ABNF grammer for SDP defines that each SDP attribute must be ended with CRLF
character. See notes below:
Could it be created a bug for it and fix released ?
The ABNF grammar of SIP (http://tools.ietf.org/html/rfc3261#page-223
<http://tools.ietf.org/html/rfc3261#page-223> ) you find
SIP-message = Request / Response
Request = Request-Line
*( message-header )
CRLF
[ message-body ]
with message-body
<file:///D:/ts/standards/rfc/sip/abnf2htm/grammar_rfc3261.html#Xref.message-body>
= *OCTET
<file:///D:/ts/standards/rfc/sip/abnf2htm/grammar_rfc3261.html#octet>
So in general, there is no CRLF at the end. SDP
(http://tools.ietf.org/html/rfc4566#page-39
<http://tools.ietf.org/html/rfc4566#page-39> ) says the following:
session-description = proto-version
origin-field
session-name-field
information-field
uri-field
email-fields
phone-fields
connection-field
bandwidth-fields
time-fields
key-field
attribute-fields
media-descriptions
with
attribute-fields = *(%x61 "=" attribute CRLF)
media-descriptions = *( media-field
information-field
*connection-field
bandwidth-fields
key-field
attribute-fields )
Regards
Mitko Mitev
IT Services and Enterprise Communications
iSEC CZ 34-5 Team Lead
Bidláky 20, budova Mediahall
639 00 Brno
Tel.: +420 533 337 251
Fax: +420 533 337 252
Mobil: +420 724 754 090
mailto: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
www.isec-it.com <http://www.isec-it.com/>
Společnost: iSEC - IT Services and Enterprise Communications s.r.o.
Sídlo: Brno, Bidláky 20, 639 00
Obchodní firma je zapsána v obchodním rejstříku u Krajského soudu v Brně v
oddílu C, ve sloce 54602.
IČ: 27721710
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