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List:       openser-devel
Subject:    [OpenSER-Devel] [ openser-Bugs-2002156 ] "force_rport" should also
From:       "SourceForge.net" <noreply () sourceforge ! net>
Date:       2008-06-28 10:48:02
Message-ID: E1KCXyM-00067W-2B () g45xhf1 ! ch3 ! sourceforge ! com
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Bugs item #2002156, was opened at 2008-06-25 01:36
Message generated for change (Comment added) made by ibc_sf
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=743020&aid=2002156&group_id=139143

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: core
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Iaki Baz (ibc_sf)
Assigned to: Nobody/Anonymous (nobody)
Summary: "force_rport" should also add "received" parameter

Initial Comment:
Hi, I've realized that if OpenSer does "force_rport()" and the request source IP \
equals the top Via sent-by host part, then OpenSer adds "rport=$sp" but not \
"received=$si". For example:

-------
U OpenSER -> UAC
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP 222.121.235.18;rport=5080;branch=z9hG4bKznzateye
-------

Well, adding "received" parameter is just mandatory in RFC 3261 if sent-by host part \
is a domain/hostname or an IP different of the real source IP (18.2 indicates it \
clearly), but it seems that RFC 3581 (rport) updates this behaviour:

--------
RFC 3581

 4.  Server Behavior
   ...
   In fact, the server MUST insert a "received" parameter
   containing the source IP address that the request came from, even if
   it is identical to the value of the "sent-by" component. 
--------

So I understand that OpenSer should add "received=$si" in case it adds "rport=$sp". \
Anyway I'm not 100% sure. In fact I've reported this as a possible bug to RFC 3581 \
authors and asked it in sip-implementors. I'll update this report with responses \
received there.


----------------------------------------------------------------------

> Comment By: Iaki Baz (ibc_sf)
Date: 2008-06-28 12:48

Message:
Logged In: YES 
user_id=1844020
Originator: YES

After getting replies from different sources I confirm that this is an
issue in OpenSer. A RFC3581 compliant device MUST add "received" parameter
(even if not necessary) in case it handles "rport" parameter in a
request/response.

So, in the example above:

 -------
 U OpenSER -> UAC
 SIP/2.0 407 Proxy Authentication Required
 Via: SIP/2.0/UDP 222.121.235.18;rport=5080;branch=z9hG4bKznzateye
 -------

It should be:

 -------
 U OpenSER -> UAC
 SIP/2.0 407 Proxy Authentication Required
 Via: SIP/2.0/UDP
222.121.235.18;received=222.121.235.18;rport=5080;branch=z9hG4bKznzateye
 -------


----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=743020&aid=2002156&group_id=139143

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