[asterisk-bugs] [JIRA] (ASTERISK-29961) RLS: domain part of 'uri' list attribute mismatch with SUBSCRIBE request

[Alexei Gradinari (JIRA)]

Alexei Gradinari created ASTERISK-29961:
-------------------------------------------

             Summary: RLS: domain part of 'uri' list attribute mismatch with SUBSCRIBE request
                 Key: ASTERISK-29961
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29961
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Resources/res_pjsip_pubsub
    Affects Versions: 19.2.1, 18.10.1, 16.24.1
            Reporter: Alexei Gradinari


When asterisk generates the RLMI part of NOTIFY request, the asterisk uses the local contact uri instead of the URI to which the SUBSCRIBE request is sent.
Because of this mismatch some IP phones (for example Cisco 5XX) ignore this list.

According
https://datatracker.ietf.org/doc/html/rfc4662#section-5.2
   The first mandatory <list> attribute is "uri", which contains the uri
   that corresponds to the list.  Typically, this is the URI to which
   the SUBSCRIBE request was sent.
https://datatracker.ietf.org/doc/html/rfc4662#section-5.3
   The "uri" attribute identifies the resource to which the <resource>
   element corresponds.  Typically, this will be a SIP URI that, if
   subscribed to, would return the state of the resource.

For example if the SUBSCRIBE request is sent to
sip:rls_1004 at asterisk.company.com
the asterisk generates the next RLMI

--dtqzb
Content-ID: <lflen at 192.168.100.15>
Content-Type: application/rlmi+xml
Content-Length:   483

<?xml version="1.0" encoding="UTF-8"?>
<list xmlns="urn:ietf:params:xml:ns:rlmi" uri="sip:rls_1004 at 192.168.100.15:5060" version="1" fullState="false">
 <name>rls_1004</name>
 <resource uri="sip:1001 at 192.168.100.15:5060">
  <name>Alice</name>
  <instance id="smgzj" state="active" cid="bqgdu at 192.168.100.15" />
 </resource>
</list>

--dtqzb
Content-ID: <bqgdu at 192.168.100.15>
Content-Type: application/dialog-info+xml
Content-Length:   230

<?xml version="1.0" encoding="UTF-8"?>
<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="39" state="full" entity="sip:1001 at 192.168.100.15:5060">
 <dialog id="1001">
  <state>confirmed</state>
 </dialog>
</dialog-info>


Better if asterisk would generate RLMI

--tswyz
Content-ID: <uzogh at asterisk.company.com>
Content-Type: application/rlmi+xml
Content-Length:   518

<?xml version="1.0" encoding="UTF-8"?>
<list xmlns="urn:ietf:params:xml:ns:rlmi" uri="sip:rls_1004 at asterisk.company.com" version="1" fullState="false">
 <name>rls_1004</name>
 <resource uri="sip:1001 at asterisk.company.com">
  <name>Alice</name>
  <instance id="fldlg" state="active" cid="llhys at asterisk.company.com" />
 </resource>
 <resource uri="sip:1002 at asterisk.company.com">
  <name>Bob</name>
  <instance id="zyees" state="active" cid="qqhed at asterisk.company.com" />
 </resource>
</list>

--tswyz
Content-ID: <llhys at asterisk.company.com>
Content-Type: application/dialog-info+xml
Content-Length:   236

<?xml version="1.0" encoding="UTF-8"?>
<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="42" state="full" entity="sip:1001 at asterisk.company.com">
 <dialog id="1001">
  <state>terminated</state>
 </dialog>
</dialog-info>





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