HI Bogdan,
Thanks for the reply.
I was using 3.2.13, so I have now patched this to 3.2.15, which is
the latest version on the 3.2 branch. I repeated the test and got the
same behaviour. Please see the below information as requested…
Script…
if ( $si == '10.10.14.71' && is_method("INVITE") ) {
exec("/usr/local/bin/sbc-route", $tU, $var(out));
xlog("Value returned from Re-direct Script is
$var(out)");
$branch = $var(out);
xlog("Target is set as $branch");
send_reply(302, "Server Redirect");
exit;
}
Xlog information logged when the call request comes in…
2023-11-15T09:52:55.375039+00:00 uk-rdh-testast2
/usr/sbin/opensips[283656]: Value returned from Re-direct Script is
sip:33557719673@10.10.4.77
2023-11-15T09:52:55.375456+00:00 uk-rdh-testast2
/usr/sbin/opensips[283656]: Target is set as sip:33557719673@10.10.4.77
The 302 response is below, exported from Wireshark…
No. Time Source Destination Protocol
Length Info
15 09:53:20.012882 10.10.12.70 10.10.14.71
SIP 666 Status: 302 Server Redirect |
Frame 15: 666 bytes on wire (5328 bits), 666 bytes captured (5328 bits)
Ethernet II, Src: bb:bb:bb:bb:bb:bb (bb:bb:bb:bb:bb:bb), Dst:
aa:aa:aa:aa:aa:aa (aa:aa:aa:aa:aa:aa)
Internet Protocol Version 4, Src: 10.10.12.70, Dst: 10.10.14.71
User Datagram Protocol, Src Port: 5070, Dst Port: 5060
Session Initiation Protocol (302)
Status-Line: SIP/2.0 302 Server Redirect
Message Header
From:
sip:+4478341xx...@151.x.xxx.x;user=phone;tag=BN1699364674-1-1700041999-377836318
To:
sip:+4415279xx...@149.x.xxx.xx;user=phone;tag=5d8f.6023fbda08f41f7e9ebdc611f91805ef
Call-ID: 55197572_103382...@151.x.xxx.x
[Generated Call-ID: 55197572_103382...@151.x.xxx.x]
CSeq: 61414 INVITE
Via: SIP/2.0/UDP
10.10.14.71:5060;branch=z9hG4bK-6a03d713-a7b27-28f11294-7f0923fc1278
Via: SIP/2.0/UDP
149.x.xxx.xx:5060;received=151.x.xxx.x;rport=5060;branch=z9hG4bK1699364674
Via: SIP/2.0/UDP
151.x.xxx.x:5060;branch=z9hG4bK0aB2fefabe20ff62d0e
Contact: <sip:33557719673@10.10.4.77
[Expert Info (Warning/Malformed): Header has no colon after
the name]
[Header has no colon after the name]
[Severity level: Warning]
[Group: Malformed]
Server: OpenSIPS (3.2.15 (x86_64/linux))
Content-Length: 0
If it is any help, I did try another method of inputting the Contact
header, which was using the ‘append_to_reply’ command, rather than
using the $branch method, so I just formatted in the URI as such…
append_to_reply('Contact: <$var(out)>');
This pushed the closing > from the ‘Contact’ URI to the “Server”
line, as you can see on the outputted 302 below…
No. Time Source Destination Protocol
Length Info
17 12:12:01.339034 10.10.12.70 10.10.14.71
SIP 667 Status: 302 Server Redirect |
Frame 17: 667 bytes on wire (5336 bits), 667 bytes captured (5336 bits)
Ethernet II, Src: bb:bb:bb:bb:bb:bb (bb:bb:bb:bb:bb:bb), Dst:
aa:aa:aa:aa:aa:aa (aa:aa:aa:aa:aa:aa)
Internet Protocol Version 4, Src: 10.10.12.70, Dst: 10.10.14.71
User Datagram Protocol, Src Port: 5070, Dst Port: 5060
Session Initiation Protocol (302)
Status-Line: SIP/2.0 302 Server Redirect
Message Header
From:
sip:+4478341xx...@151.x.xxx.x;user=phone;tag=BN1699364667-1-1699963921-901707368
To:
sip:080001xx...@149.x.xxx.xx;user=phone;tag=5d8f.a1daebfe0f15d4035f73e92edd390da9
Call-ID: 55182316_87520...@151.x.xxx.x
[Generated Call-ID: 55182316_87520...@151.x.xxx.x]
CSeq: 706035 INVITE
Via: SIP/2.0/UDP
10.10.14.71:5060;branch=z9hG4bK-34260abf-94a28-2449afc3-7f0920d0abc8
Via: SIP/2.0/UDP
149.x.xxx.xx:5060;received=151.x.xxx.x;rport=5060;branch=z9hG4bK1699364667
Via: SIP/2.0/UDP
151.x.xxx.x:5060;branch=z9hG4bK0aB220722fa7bfe603d
Contact: <sip:33557719673@10.10.4.77:5060
>Server: OpenSIPS (3.2.13 (x86_64/linux))
[Expert Info (Note/Undecoded): Unrecognised SIP header
(>server)]
[Unrecognised SIP header (>server)]
[Severity level: Note]
[Group: Undecoded]
Content-Length: 0
Whether this is related or not, I cannot say, but thought I would
include it in any case.
Many Thanks,
Ben
*From:*Bogdan-Andrei Iancu <bog...@opensips.org>
*Sent:* Wednesday, November 15, 2023 7:30 AM
*To:* OpenSIPS users mailling list <users@lists.opensips.org>; Ben
Bliss <ben.bl...@telxl.com>
*Subject:* Re: [OpenSIPS-Users] Odd URI formatting issue when using
Exec to return a variable
CAUTION: This email originated from outside your organization.
Exercise caution when opening attachments or clicking links,
especially from unknown senders.
Hi Ben,
Could you post the xlog output and the resulting 302 ? Also be sure
you are using the latest 3.2 version - please post the `opensips -V`
here.
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.opensips-solutions.com&c=E,1,n_ThlRNU3i-MoIo_dhzoLTuWEvWUOlYVNSDoisTDDrwzbpcftjAa4w_2PyxMOisnPvCBiGpAygCZjMhqUzFW_eo3M1DZs60QBAwbpZYM6fdEYEdZt7_0&typo=1>
https://www.siphub.com
<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.siphub.com&c=E,1,FaWC5zmYssK-iGLeBMdcpIfqOyqXzRepdKxkoIroZfSn0rDpGcOHq3E-rAA6pLhypuKjMgc8st1DlBDvpaiolXtmHYeW9PIxKMk9l27g6Jmoso3H5n9a6tC2bOqe&typo=1>
On 11/14/23 4:00 PM, Ben Bliss wrote:
I am using Opensips v.3.2 and I am attempting to replicate the
302 redirect outlined on the blog
(https://blog.opensips.org/2018/07/05/handling-sip-redirect-requests-in-realtime/),
but am running into an odd issue.
I am using exec to execute an external program, which returns a
URI as a variable, which is then used to populate the $branch
field, which is then returned as the contact URI in the 302
response.
For reasons I cannot explain, even though the URI is correctly
formatted in the xlogs which I print off during the call request,
when the 302 message is received, the Contact URI is missing the
end ‘>‘character. This means the server the 302 is being sent to
doesn’t ACK the message, as the contact URI is invalid.
If I specify the URI directly within OpenSIPs, then the contact
header is then formatted correctly.
Initially I thought the issue was related to the script returning
the variable (bash script), so I swapped to a Golang program,
essentially returning the same URI, but the same behaviour occurs
with this as well.
The script is setup as follows…
if ( $si == '10.10.14.71' && is_method("INVITE") ) {
exec("/usr/local/bin/sbc-route", $tU, $var(out));
xlog("Value returned from Re-direct
Script is $var(out)");
$branch = $var(out);
xlog("Target is set as $branch");
send_reply(302, "Server Redirect");
exit;
}
Can anyone offer any ideas as to why this may be occurring?
_______________________________________________
Users mailing list
Users@lists.opensips.org
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
_______________________________________________
Users mailing list
Users@lists.opensips.org
http://lists.opensips.org/cgi-bin/mailman/listinfo/users
