[BUG]callee hangup call, b2b send bye to itself

[QuincyGao]

OpenSIPS version you are running

version: opensips 3.5.3 (x86_64/linux)
flags: STATS: On, DISABLE_NAGLE, USE_MCAST, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, HP_MALLOC, DBG_MALLOC, FAST_LOCK-ADAPTIVE_WAIT
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535
poll method support: poll, epoll, sigio_rt, select.
git revision: unknown
main.c compiled on 01:25:49 Feb 10 2025 with cc 4.8.5

Describe the bug

caller A send invite to callee B by opensips b2b. B hangup call after answered the call, b2b also send bye to itself.

here is the sip sceen:

A                    opensips                B
| -----invite----->    | 
| <-----100 try ---    |
|                      | ------>invite----->  |
|                      | <-----100 try -----  |
|                      | <-----183   -------- |
|  <-----183-----      |
|                      | <----- 200 ok------|
| <-----200 ok ----    |
| ------ACK ----->     | 
|                      | ------ACK -------->|
|                      | <------ BYE ------- |
|                      | - ----
|                      |         | BYE      <--------- is the issue
|                      | <----
|   <----- BYE ----    |
|  ---- 200 ok --->    | 
|                      | ----
|                      |      | 200 ok    <------ is the issue
|                      |<---
|                      | ------200 ok ----->|

here is my cfg:

socket=udp:172.16.4.111:5360
socket=udp:172.16.4.111:5361
loadmodule "b2b_entities.so"
loadmodule "b2b_logic.so"
modparam("b2b_logic", "hash_size", 10)
modparam("b2b_logic", "script_req_route", "b2b_logic_request")
modparam("b2b_logic", "script_reply_route", "b2b_logic_reply")
modparam("b2b_logic", "cleanup_period", 60)
modparam("b2b_logic", "db_url", "mysql://opensips:[email protected]/opensips_3_5")
modparam("b2b_logic", "update_period", 30)
modparam("b2b_logic", "max_duration", 7200)
modparam("b2b_logic", "b2bl_from_spec_param", "$var(b2bl_from)")

#modparam("b2b_logic", "contact_user", 1)
#modparam("b2b_logic", "server_address", "sip:[email protected]:5361")
modparam("b2b_logic", "db_mode", 1)
modparam("b2b_logic", "b2bl_th_init_timeout", 60)
modparam("b2b_logic", "b2bl_early_update", 1)


 if(is_method("INVITE") && !has_totag()) {
                xlog("L_DBG","[$cfg_line][$ci]---b2b-server_new--:$rm|$rs|$tu|$socket_in(port)|$var(contact)\n");
                b2b_server_new("caller");
                #force_send_socket("udp:172.16.4.111:5360");
                b2b_client_new("callee", "sip:[email protected]:5080");
                # initialize B2B session
                b2b_init_request("prepaid");
                exit;
}

route[b2b_logic_request] {
        xlog("L_INFO","[$fU $tU $ci $rm] B2B_Request Received from $si:$sp User-Agent:$ua\n");
        xlog("L_INFO","[$fU $tU $ci $rm] B2B_Request message $ua:$rr received \n");
        b2b_pass_request();
}

route[b2b_logic_reply] {
        xlog("L_INFO","[$fU $tU $ci $rm] B2B_Reply Received from $si:$sp User-Agent:$ua\n");
        xlog("L_INFO","[$fU $tU $ci $rm] B2B_Reply message $rs:$rr received \n");
        b2b_handle_reply();
        exit;
}

here is B send BYE message:

2025/02/10 15:04:57.871627 172.16.4.114:5080 -> 172.16.4.111:5360
BYE sip:172.16.4.111:5360 SIP/2.0
Via: SIP/2.0/UDP 172.16.4.114:5080;rport;branch=z9hG4bKt5vZj7XpZQU1B
Max-Forwards: 70
From: <sip:[email protected]:5080>;tag=rmpBQ4Q2BQBvK
To: <sip:[email protected]>;tag=cfc5f4d0b5fd24bbe14e02acecc5c3a6-a699
Call-ID: B2B.377.2555327.1739171091.522369035
CSeq: 95031756 BYE
User-Agent: FreeSWITCH-mod_sofia/1.10.2-release+git~20230615T110520Z~4ce1b74880~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Reason: SIP;description="User Hung Up"
Content-Length: 0

opensips send to itself BYE:

2025/02/10 15:04:57.872272 172.16.4.111:5360 -> 172.16.4.111:5360
BYE sip:[email protected]:57253;ob SIP/2.0
Via: SIP/2.0/UDP 172.16.4.111:5360;branch=z9hG4bKb744.a0237ed4.0
To: <sip:[email protected]>;tag=508e8ad48f15473cb1de26d5c84f8572
From: <sip:[email protected]>;tag=B2B.389.166.1739171091.795240520
CSeq: 2 BYE
Call-ID: 7e3c950067ab4b598086aa9f9c655e5a
Route: <sip:172.16.4.111:5360;lr>
Max-Forwards: 69
Content-Length: 0
User-Agent: OpenSIPS (3.5.3 (x86_64/linux))
Supported: timer, path, replaces
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Contact: <sip:172.16.4.111:5360>

opensips sent BYE to A:

2025/02/10 15:04:57.873504 172.16.4.111:5360 -> 172.16.80.21:57253
BYE sip:[email protected]:57253;ob SIP/2.0
Via: SIP/2.0/UDP 172.16.4.111:5360;branch=z9hG4bKb744.b0237ed4.0
Via: SIP/2.0/UDP 172.16.4.111:5360;branch=z9hG4bKb744.a0237ed4.0
To: <sip:[email protected]>;tag=508e8ad48f15473cb1de26d5c84f8572
From: <sip:[email protected]>;tag=B2B.389.166.1739171091.795240520
CSeq: 2 BYE
Call-ID: 7e3c950067ab4b598086aa9f9c655e5a
Max-Forwards: 68
Content-Length: 0
User-Agent: OpenSIPS (3.5.3 (x86_64/linux))
Supported: timer, path, replaces
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Contact: <sip:172.16.4.111:5360>

To Reproduce

Expected behavior

Relevant System Logs

OS/environment information

• Operating System:
• OpenSIPS installation:
• other relevant information:

CentOS Linux release 7.9.2009 (Core)

Additional context