[OpenSIPS-Users] Can't receive a 500(Server Internal Error) response from openser-1.3.4-12.fc13.i686 register server when sending a REGISTER with the equal CSeq header field value to the last value of CSeq or lower than the number and “*” in a Contact header field

[Xiaoqiang Hu]

Hi all,
Can't receive a 200 0k response from openser register server when URI in a To header field in a REGISTER request contains escaped characters. The details can be as follows:
1 Test topology:

                   NUT(REG && PX)           UA11                         UA12                           DNS
                        |                      |                          |                              |
IP          : 3ffe:501:ffff:50::50   3ffe:501:ffff:1::1          3ffe:501:ffff:2::2                3ffe:501:ffff:4::1
aor-uri     : ss.under.test.com      UA11 at under.test.com         UA12 at under.test.com
contact-uri :                        UA11 at node.under.test.com    UA12 at node11.under.test.com
2  the test result can be seen as follows:
                        NUT  UA11 UA12 UA13 UA14 PX2  PX3  PX4  DNS
 No     time             |    |    |    |    |    |    |    |    |
 No     time             |    |    |    |    |    |    |    |    |
[0001:  0.00|U   ] REGIS |<---|    |    |    |    |    |    |    | REGISTER sip:ss.under.test.com:5060
[0002:  0.00|U   ] 401   |--->|    |    |    |    |    |    |    | 401 Unauthorized (REGISTER)
[0003:  0.08|U   ] REGIS |<---|    |    |    |    |    |    |    | REGISTER sip:ss.under.test.com:5060
[0004:  0.08|U   ] 200   |--->|    |    |    |    |    |    |    | 200 OK (REGISTER)
[0005:  0.13|U   ] REGIS |<---|    |    |    |    |    |    |    | REGISTER sip:ss.under.test.com:5060
[0006:  0.13|U   ] 200   |--->|    |    |    |    |    |    |    | 200 OK (REGISTER)

0001: <UA11	 REGISTER sip:ss.under.test.com:5060 SIP/2.0
Via: SIP/2.0/UDP node.under.test.com:5060;branch=z9hG4bKPUA9483269
Max-Forwards: 70
From: UA11 <sip:UA11 at under.test.com>;tag=11169
To: UA11 <sip:UA11 at under.test.com>
Call-ID: 11169 at hot.example.com
CSeq: 1 REGISTER
Contact: <sip:UA11 at node.under.test.com;transport=udp>
Expires: 3600
Content-Length: 0

0002: >UA11	 SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP node.under.test.com:5060;branch=z9hG4bKPUA9483269;received=3FFE:501:FFFF:1:0:0:0:1
From: UA11 <sip:UA11 at under.test.com>;tag=11169
To: UA11 <sip:UA11 at under.test.com>;tag=0c0d2af89845c72ddfdc7de2133116df.5423
Call-ID: 11169 at hot.example.com
CSeq: 1 REGISTER
WWW-Authenticate: Digest realm="under.test.com", nonce="4c147ce58c3aeb0320d06420d0fb7202f99cc211", qop="auth"
Server: OpenSER (1.3.4-tls (i386/linux))
Content-Length: 0

0003: <UA11	 REGISTER sip:ss.under.test.com:5060 SIP/2.0
Via: SIP/2.0/UDP node.under.test.com:5060;branch=z9hG4bKPUA9483270
Max-Forwards: 70
Authorization: Digest username="UA11", realm="under.test.com", qop=auth, nonce="4c147ce58c3aeb0320d06420d0fb7202f99cc211", opaque="", nc=00000001, cnonce="6f54a149", uri="sip:ss.under.test.com:5060", response="55d63d1b7029e12d72f20ec094992773"
From: UA11 <sip:UA11 at under.test.com>;tag=11169
To: UA11 <sip:UA11 at under.test.com>
Call-ID: 11169 at hot.example.com
CSeq: 2 REGISTER
Contact: <sip:UA11 at node.under.test.com;transport=udp>
Expires: 3600
Content-Length: 0

0004: >UA11	 SIP/2.0 200 OK
Via: SIP/2.0/UDP node.under.test.com:5060;branch=z9hG4bKPUA9483270;received=3FFE:501:FFFF:1:0:0:0:1
From: UA11 <sip:UA11 at under.test.com>;tag=11169
To: UA11 <sip:UA11 at under.test.com>;tag=0c0d2af89845c72ddfdc7de2133116df.c56b
Call-ID: 11169 at hot.example.com
CSeq: 2 REGISTER
Date: Sun, 13 Jun 2010 06:33:29 GMT
Contact: <sip:UA11 at node.under.test.com;transport=udp>;expires=3600
Server: OpenSER (1.3.4-tls (i386/linux))
Content-Length: 0

0005: <UA11	 REGISTER sip:ss.under.test.com:5060 SIP/2.0
Via: SIP/2.0/UDP node.under.test.com:5060;branch=z9hG4bKPUA9483271
Max-Forwards: 70
Authorization: Digest username="UA11", realm="under.test.com", qop=auth, nonce="4c147ce58c3aeb0320d06420d0fb7202f99cc211", opaque="", nc=00000001, cnonce="6f54a149", uri="sip:ss.under.test.com:5060", response="55d63d1b7029e12d72f20ec094992773"
From: UA11 <sip:UA11 at under.test.com>;tag=11169
To: UA11 <sip:UA11 at under.test.com>
Call-ID: 11169 at hot.example.com
CSeq: 2 REGISTER
Contact: *
Expires: 0
Content-Length: 0

0006: >UA11	 SIP/2.0 200 OK
Via: SIP/2.0/UDP node.under.test.com:5060;branch=z9hG4bKPUA9483271;received=3FFE:501:FFFF:1:0:0:0:1
From: UA11 <sip:UA11 at under.test.com>;tag=11169
To: UA11 <sip:UA11 at under.test.com>;tag=0c0d2af89845c72ddfdc7de2133116df.5d7a
Call-ID: 11169 at hot.example.com
CSeq: 2 REGISTER
Date: Sun, 13 Jun 2010 06:33:29 GMT
Server: OpenSER (1.3.4-tls (i386/linux))
Content-Length: 0

3  openser configuration file can be seen in "openser.cfg" attachment
How can I modify the configuration file if I want to receive the 500?

--------------------------------------
Regards!
Hu xiaoqiang
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