23 Jul
2024
23 Jul
'24
1:36 p.m.
### Description
I used sip_p_charging_vector() function of siputils with flag f (remove + generate).
This function works fine if call is received without a P-Charging-Vector and only generate
needs to be done.
But if the INVITE already contains a P-Charging-Vector and this vector needs to be removed
and replaced by a new generated P-Charging-Vector the output is messed up.
The sip_p_charging_vector() function with flag r (remove) works fine too.
P-Charging-Vector is removed if INVITE contains one. So for me this looks like an issue
with the combination of remove + generate.
See SIP Traffic attached. The "old" P-Charging-Vector is not deleted and
additionaly instead of a new P-Charging-Vector the "old" P-Charging-Vector is
added again above SDP. Also some part of the next line "Session-Exp" is added
and "TH: dih".
-----
TH: dih
icid-value=0d702d06-5700-103e-00-00-00-10-6b-03-dd-04;icid-generated-at=213.xxx.xxx.xxx
Session-Exp
-----
### Troubleshooting
#### Reproduction
It looks like the issue is triggered always a p-charging-vector is received by kamailio
and sip_p_charging_vector() with flag f is called.
#### 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
```
**This message is received by kamailio (Incoming):**
INVITE sip:+49xxxxxxxx;npdi;rn=+49xxxxxxxx@bob.com:5060;user=phone SIP/2.0
Via: SIP/2.0/UDP 213.xxx.xxx.xxx:5060;branch=z9hG4bK08Bf3722bac16f3e05b
From: <sip:+43xxxxxxxx@alice.com;user=phone>;tag=gK085abca7
To: <sip:+49xxxxxxxx0@92.xxx.xxx.xxx:5060;user=phone>
Call-ID: 168341746_132086108(a)213.xxx.xxx.xxx
CSeq: 373279 INVITE
Max-Forwards: 67
Allow:
INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS,MESSAGE,PUBLISH
Accept: application/sdp, application/isup, application/dtmf, application/dtmf-relay,
multipart/mixed
Contact: <sip:+43xxxxxxxx@213.xxx.xxx.xxx:5060>
P-Asserted-Identity: <sip:+43xxxxxxxx@alice.com:5060;user=phone>
Supported: timer,100rel,histinfo
P-Charging-Vector:
icid-value=0d702d06-5700-103e-00-00-00-10-6b-03-dd-04;icid-generated-at=213.xxx.xxx.xxx
Session-Expires: 1800
Min-SE: 90
Content-Length: 236
Content-Disposition: session; handling=required
Content-Type: application/sdp
v=0
o=Sonus_UAC 278609 22801 IN IP4 213.xxx.xxx.xxx
s=SIP Media Capabilities
c=IN IP4 213.xxx.xxx.xxx
t=0 0
m=audio 29020 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
a=ptime:20
**This message is send out by kamailio (outgoing):**
INVITE sip:+49xxxxxxxx;npdi;rn=+49xxxxxxxx@bob.com:5060;user=phone SIP/2.0
Record-Route: <sip:172.xxx.xxx.xxx;r2=on;lr=on;ftag=gK085abca7>
Record-Route: <sip:92.xxx.xxx.xxx9;r2=on;lr=on;ftag=gK085abca7>
Via: SIP/2.0/UDP 172.xxx.xxx.xxx;branch=z9hG4bKc451.940fa2c220f96c1ef968de3c156db262.0
Via: SIP/2.0/UDP 213.xxx.xxx.xxx:5060;TH=div;branch=z9hG4bK08Bf3722bac16f3e05b
From: <sip:+43xxxxxxxx@alice.com;user=phone>;tag=gK085abca7
To: <sip:+49xxxxxxxx@92.xxx.xxx.xxx:5060;user=phone>
Call-ID: 168341746_132086108(a)213.xxx.xxx.xxx
CSeq: 373279 INVITE
Max-Forwards: 66
Allow:
INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS,MESSAGE,PUBLISH
Accept: application/sdp, application/isup, application/dtmf, application/dtmf-relay,
multipart/mixed
Contact: <sip:+43xxxxxxxx@213.xxx.xxx.xxx:5060>
P-Asserted-Identity: <sip:+43xxxxxxxx@alice.com:5060;user=phone>
Supported: timer,100rel,histinfo
P-Charging-Vector:
icid-value=0d702d06-5700-103e-00-00-00-10-6b-03-dd-04;icid-generated-at=213.xxx.xxx.xxx
Session-Expires: 1800
Min-SE: 90
Content-Length: 252
Content-Disposition: session; handling=required
Content-Type: application/sdp
**_TH: dih
icid-value=0d702d06-5700-103e-00-00-00-10-6b-03-dd-04;icid-generated-at=213.xxx.xxx.xxx
Session-Exp_**
v=0
o=Sonus_UAC 278609 22801 IN IP4 92.xxx.xxx.xxx
s=SIP Media Capabilities
c=IN IP4 92.xxx.xxx.xxx
t=0 0
m=audio 34622 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
a=rtcp:34623
a=ptime:20
```
### Additional Information
```
version: kamailio 5.8.2 (x86_64/linux) 3fa5f4
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST,
DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, MEM_JOIN_FREE, 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, TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_SEND_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: 3fa5f4
compiled on 15:54:29 Jul 22 2024 with gcc 10.2.1
```
* **Operating System**:
```
Debian GNU/Linux 11
5.10.0-26-amd64 #1 SMP Debian 5.10.197-1 (2023-09-29) x86_64 GNU/Linux
```
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