[reSIProcate] Request Line construction problems during shuffle re-invite in Dialog::makerequest()

Tue Nov 7 17:55:12 CST 2006

All,

I'm seeing a problem with Dialog::makerequest() when receiving a
ReInvite. The provideOffer() method attempts to build the INVITE message
and does so with an invalid Request Line, i.e. INVITE sip:domain.com
where the user part is missing. Below are snips from the log showing the
incoming INVITE, the provideOffer(), and the subsequent prints in
makerequest().

The complete sequence is shown in the attached trace, but a pair of
connected sessions, that are being managed by a B2B, is being sent a
re-invite, which I have to provideOffer() to the other side of the B2B.
The provideOffer() is being done from within onAnswer() within the same
DUM and thread instance (but using DumThread and StackThread). I put
some prints into Dialog::makerequest() and found that it was accessing a
member variable, mRemoteTarget.Uri, within the Dialog. The Re-invite
comes in on 1 session, and I'm sending the offer on a different session,
the call ids are different and hence the dialogs should be different. 

I'm on a older version of resip from SVN (circa mar 06) but just pulled
down the 1.0.1 tarball and didn't see any change to Dialog.cxx that
would address this.

Is what I am trying to do legal and if so, any ideas why the request
line is being built incorrectly?

Bill Kovar

INVITE sip:55123 at 135.8.116.33:5060 SIP/2.0
Via: SIP/2.0/UDP
135.8.52.181:5060;branch=z9hG4bKD256464603538333231180b.0
Via: SIP/2.0/UDP
135.8.52.54:36092;psrrposn=1;received=135.8.52.54;branch=z9hG4bK-d87543-
7e2466749713bd4c-1--d87543-;rport=36092
Max-Forwards: 69
Record-Route: <sip:135.8.52.181:5060;lr>
Contact: <sip:55501 at 135.8.52.54:36092;rinstance=47c2eadfce5cb0e5>
To: "IC 7.1 B2B"<sip:55123 at avaya.com>;tag=87167f3f
From: <sip:55501 at avaya.com>;tag=d52d576b
Call-ID: e03e8a100527ad51ZTU2NTMzOTg2ZDMyYzc4MWNiYjc4MzMzMGUwNGJkYWM.
CSeq: 3 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE,
SUBSCRIBE, INFO
Content-Type: application/sdp
User-Agent: X-Lite release 1003l stamp 30942
P-Asserted-Identity: sip:55501 at avaya.com
Content-Length: 231

v=0
o=- 9 4 IN IP4 135.8.52.54
s=CounterPath eyeBeam 1.5
c=IN IP4 0.0.0.0
t=0 0
m=audio 17010 RTP/AVP 0 127
a=fmtp:127 0-15
a=rtpmap:127 telephone-event/8000
a=sendonly
a=x-rtp-session-id:663EBBA451B741909024C82821116262

Fixed SDP (Eyebeam sends an old style Hold with Connection = 0.0.0.0
which is problematic for me...)
o=- 9 4 IN IP4 135.8.52.54
s=CounterPath eyeBeam 1.5
c=IN IP4 135.8.52.54
t=0 0
m=audio 17010 RTP/AVP 0 127
a=fmtp:127 0-15
a=rtpmap:127 telephone-event/8000
a=sendonly
a=x-rtp-session-id:663EBBA451B741909024C82821116262

Problematic DUM code:
INFO | 20061107-180909.164 | SipSwitch | RESIP:DUM | 5064 |
ServerInviteSession.cxx:154 | InviteSession::Connected: provideOffer
INFO | 20061107-180909.164 | SipSwitch | RESIP:DUM | 5064 |
InviteSession.cxx:2032 | Transition InviteSession::Connected ->
InviteSession::SentReinvite
DEBUG | 20061107-180909.164 | SipSwitch | RESIP:DUM | 5064 |
Dialog.cxx:834 | +++++++ mRemoteTarget.Uri =
sip:135.8.135.123;transport=tcp
DEBUG | 20061107-180909.164 | SipSwitch | RESIP:DUM | 5064 |
Dialog.cxx:836 | +++++++ Rline = INVITE sip:135.8.135.123;transport=tcp
SIP/2.0
DEBUG | 20061107-180909.164 | SipSwitch | RESIP:DUM | 5064 |
Dialog.cxx:901 | Dialog::makeRequest: INVITE
sip:135.8.135.123;transport=tcp SIP/2.0
Via: SIP/2.0/ ;branch=z9hG4bK-d87543-2a190f6cd355ba15-1--d87543-;rport
Max-Forwards: 70
Route: <sip:135.8.52.181:5060;lr>
Route: <sip:135.8.135.123;lr;transport=tcp>
Contact: <sip:55123 at 135.8.116.33:5060;rinstance=013fc72a18699110>
To: "Kowen's IPA
321"<sip:32100 at avaya.com>;tag=092b1eb9f80db1ee1345461dba00
From: "55123"<sip:55123 at avaya.com>;tag=fc7a402d
Call-ID: 092b1eb9f80db1ef1345461dba00
CSeq: 2 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, NOTIFY
Content-Length: 0
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.resiprocate.org/pipermail/resiprocate-devel/attachments/20061107/44828815/attachment.htm>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: RequestLineErrortxt.txt
URL: <http://list.resiprocate.org/pipermail/resiprocate-devel/attachments/20061107/44828815/attachment.txt>