[asterisk-bugs] [Asterisk 0017700]: [patch] When matching peers check invite from domain against domain list

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17700 
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Reported By:                rsw686
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17700
Category:                   Channels/chan_sip/Interoperability
Reproducibility:            N/A
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.6.2.11-rc1 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-07-24 21:29 CDT
Last Modified:              2010-07-25 22:03 CDT
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Summary:                    [patch] When matching peers check invite from domain
against domain list
Description: 
In trying to get the Exchange UM play on phone feature to work I developed
this patch. Exchange UM is sending the below SIP invite. Asterisk ignores
the domain when finding a matching SIP peer based on username. Since the
invite from field matches a device in sip.conf with a secret Asterisk is
responding with unauthorized. What I needed was for Asterisk to IP match my
sip peer with insecure=port,invite.

INVITE sip:2001 at voip.mydomain.net;user=phone SIP/2.0
FROM:
""<sip:2001 at exch.testdev.local;user=phone>;epid=079E8F8013;tag=849256682
TO: <sip:2001 at voip.mydomain.net;user=phone>

The debug output looks like 

Using INVITE request as basis request -
5c97e0f0-5456-4b82-a7f4-e7f2adeba338
Found peer '2001' for '2001' from 10.10.1.31:19219

The patch address the issue by checking the from domain when domain
support is enabled. In my configuration I just needed to enable
autodomain=yes in sip.conf.

Now the debug output looks like

Using INVITE request as basis request -
54d10d2e-01d1-451e-b21a-ef4bba987a0f
Unknown peer from domain exch.testdev.local
Found peer 'exchange-vm' for '2001' from 10.10.1.31:37810

For those not utilizing domain support this will have no effect. In my
testing with Polycom and Linksys phones all setup the invite with From:
userid at registrationserver. 
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 (0125000) rsw686 (reporter) - 2010-07-25 22:03
 https://issues.asterisk.org/view.php?id=17700#c125000 
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My issue description was based on problem/resolution with Exchange UM and
doesn't explain how this improves domain functionality with Asterisk in
mind. In sip.conf it states "REGISTER to non-local domains will be
automatically denied if a domain list is configured." The REGISTER To field
is deviceid at registrationserver so the INVITE From field should always be
deviceid at registrationserver. If the INVITE From field domain doesn't match
the domain list the device couldn't have been registered. Therefore there
is no need to try and find a matching peer for unknown domains. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-07-25 22:03 rsw686         Note Added: 0125000                          
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