### Description When using a combination of TopoS+UACreg+Dialog, Kamailio fails to match received replies to a transaction in a dialog. ### Troubleshooting modparam("topos", "storage", "redis") modparam("topos", "sanity_checks", 0) modparam("topos", "contact_mode", 0) modparam("dialog", "track_cseq_updates", 1) #### Reproduction Load Topos + UAC + Dialog modules. Enable dialog cseq tracking. Add some uacrec record. Register with remote peer. Make a call towards the remote peer. INVITE - Cseq: 1, Branch number: 0. Kamailio will receive a 401 challenge. - Cseq: 2, Branch number: 1, it will include the Digest auth and try again. . The mangled topos Contact username will be slightly different (supposed to be?) - Next, the UAS will reply with 100 Trying. In response to that, Kamailio keeps retransmitting the same INVITE with Cseq 2 over and over again, presumably because it fails to match that reply to an existing transaction. #### Debugging Data ``` DEBUG: {2 2 INVITE a19dfac7c4a65} tm [t_lookup.c:1009]: t_reply_matching(): failure to match a transaction ``` #### Log Messages <!-- Check the syslog file and if there are relevant log messages printed by Kamailio, add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site). --> ``` (paste your log messages here) ``` #### SIP Traffic <!-- If the issue is exposed by processing specific SIP messages, grab them with ngrep or save in a pcap file, then add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site). --> ``` 2021/02/26 12:10:16.213947 10.10.10.2:5060 -> 10.10.10.1:5060 INVITE sip:8882223333@mypbx.mydomain.net SIP/2.0 Via: SIP/2.0/UDP mysbc.mydomain.com:5060;branch=z9hG4bK4f81.97f17905fe7afced720300fea57ef462.0;i=6a FROM: Demo Five<sip:2385@mypbx.mydomain.net>;tag=29e99c29147f425f914b73512fc13cf3 TO: <sip:8882223333@mypbx.mydomain.net> CSEQ: 1 INVITE CALL-ID: 33c9034c136e57de9c1278daef7d02fb MAX-FORWARDS: 69 CONTENT-LENGTH: 575 MIN-SE: 300 SUPPORTED: timer USER-AGENT: UA CONTENT-TYPE: application/sdp ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY SESSION-EXPIRES: 3600 Contact: <sip:btpsh-603922bd-3db9-1@mysbc.mydomain.com:5060> 2021/02/26 12:10:16.215650 10.10.10.1:5060 -> 10.10.10.2:5060 SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP mysbc.mydomain.com:5060;branch=z9hG4bK4f81.97f17905fe7afced720300fea57ef462.0;i=6a;received=10.10.10.2;rport=5060 From: Demo Five<sip:2385@mypbx.mydomain.net>;tag=29e99c29147f425f914b73512fc13cf3 To: <sip:8882223333@mypbx.mydomain.net>;tag=as7c952f5b Call-ID: 33c9034c136e57de9c1278daef7d02fb CSeq: 1 INVITE Server: B2B Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE Supported: replaces, timer, path WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="4f8fcced" Content-Length: 0 2021/02/26 12:10:16.238191 10.10.10.2:5060 -> 10.10.10.1:5060 ACK sip:8882223333@mypbx.mydomain.net SIP/2.0 FROM: Demo Five<sip:2385@mypbx.mydomain.net>;tag=29e99c29147f425f914b73512fc13cf3 To: <sip:8882223333@mypbx.mydomain.net>;tag=as7c952f5b CSEQ: 1 ACK CALL-ID: 33c9034c136e57de9c1278daef7d02fb MAX-FORWARDS: 69 Via: SIP/2.0/UDP mysbc.mydomain.com:5060;branch=z9hG4bK4f81.97f17905fe7afced720300fea57ef462.0;i=6a CONTENT-LENGTH: 0 2021/02/26 12:10:16.280455 10.10.10.2:5060 -> 10.10.10.1:5060 INVITE sip:8882223333@mypbx.mydomain.net SIP/2.0 Via: SIP/2.0/UDP mysbc.mydomain.com:5060;branch=z9hG4bK4f81.97f17905fe7afced720300fea57ef462.1.cs1;i=6a FROM: Demo Five<sip:2385@mypbx.mydomain.net>;tag=29e99c29147f425f914b73512fc13cf3 TO: <sip:8882223333@mypbx.mydomain.net> CSEQ: 2 INVITE CALL-ID: 33c9034c136e57de9c1278daef7d02fb MAX-FORWARDS: 69 CONTENT-LENGTH: 575 MIN-SE: 300 SUPPORTED: timer USER-AGENT: UA CONTENT-TYPE: application/sdp ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY SESSION-EXPIRES: 3600 Authorization: Digest username="2385", realm="asterisk", nonce="4f8fcced", uri="sip:8882223333@mypbx.mydomain.net", response="ec1986d94b9a508c4e9761c3c1cb80eb", algorithm=MD5 Contact: <sip:btpsh-603922bd-3db0-4@mysbc.mydomain.com:5060> 2021/02/26 12:10:16.284672 10.10.10.1:5060 -> 10.10.10.2:5060 SIP/2.0 100 Trying Via: SIP/2.0/UDP mysbc.mydomain.com:5060;branch=z9hG4bK4f81.97f17905fe7afced720300fea57ef462.1.cs1;i=6a;received=10.10.10.2;rport=5060 From: Demo Five<sip:2385@mypbx.mydomain.net>;tag=29e99c29147f425f914b73512fc13cf3 To: <sip:8882223333@mypbx.mydomain.net> Call-ID: 33c9034c136e57de9c1278daef7d02fb CSeq: 2 INVITE Server: B2B Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE Supported: replaces, timer, path Session-Expires: 900;refresher=uas Contact: <sip:8882223333@10.10.10.1:5060> Content-Length: 0 2021/02/26 12:10:16.745320 10.10.10.2:5060 -> 10.10.10.1:5060 INVITE sip:8882223333@mypbx.mydomain.net SIP/2.0 Via: SIP/2.0/UDP mysbc.mydomain.com:5060;branch=z9hG4bK4f81.97f17905fe7afced720300fea57ef462.1.cs1;i=6a FROM: Demo Five<sip:2385@mypbx.mydomain.net>;tag=29e99c29147f425f914b73512fc13cf3 TO: <sip:8882223333@mypbx.mydomain.net> CSEQ: 2 INVITE CALL-ID: 33c9034c136e57de9c1278daef7d02fb MAX-FORWARDS: 69 CONTENT-LENGTH: 575 MIN-SE: 300 SUPPORTED: timer USER-AGENT: UA CONTENT-TYPE: application/sdp ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY SESSION-EXPIRES: 3600 Authorization: Digest username="2385", realm="asterisk", nonce="4f8fcced", uri="sip:8882223333@mypbx.mydomain.net", response="ec1986d94b9a508c4e9761c3c1cb80eb", algorithm=MD5 Contact: <sip:btpsh-603922bd-3db0-4@mysbc.mydomain.com:5060> ``` ### Possible Solutions <!-- If you found a solution or workaround for the issue, describe it. Ideally, provide a pull request with a fix. --> ### Additional Information * **Kamailio Version** - output of `kamailio -v` ``` version: kamailio 5.5.0-dev4 (x86_64/linux) 5ad3bd flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 5ad3bd compiled on 15:35:01 Feb 11 2021 with gcc 4.9.2 ``` * **Operating System**: <!-- Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...; Kernel details (output of `uname -a`) --> ``` Debian GNU/Linux 8 (jessie) ``` -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/2654