24 Feb
2016
24 Feb
'16
2:49 p.m.
Hi
Im trying to remove my Asterisk s= line on SDP but when doing:
sdp_remove_line_by_prefix("s=Asterisk");
Nothing happens.
Loaded sdpops.so module as well.
Is there any additional needed?
BR
24 Feb
24 Feb
3:02 p.m.
s= MUST exist but thought remove.. will force to "s= "
Any idea to remove "Asterisk" traces from SDP?
2016-02-24 14:49 GMT+01:00 Alberto Sagredo <alberto.sagredo(a)avanzada7.com>om>:
Hi
Im trying to remove my Asterisk s= line on SDP but when doing:
sdp_remove_line_by_prefix("s=Asterisk");
Nothing happens.
Loaded sdpops.so module as well.
Is there any additional needed?
BR
3:05 p.m.
Try replace_body() replacing “s=Asterisk” with “s=”
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Alberto
Sagredo
Sent: 24 February 2016 14:03
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.sip-router.org>
Subject: Re: [SR-Users] sdp_remove_line_by_prefix
s= MUST exist but thought remove.. will force to "s= "
Any idea to remove "Asterisk" traces from SDP?
2016-02-24 14:49 GMT+01:00 Alberto Sagredo
<alberto.sagredo@avanzada7.com<mailto:alberto.sagredo@avanzada7.com>>:
Hi
Im trying to remove my Asterisk s= line on SDP but when doing:
sdp_remove_line_by_prefix("s=Asterisk");
Nothing happens.
Loaded sdpops.so module as well.
Is there any additional needed?
BR
3:11 p.m.
On Wed, Feb 24, 2016 at 03:02:32PM +0100, Alberto Sagredo wrote:
s= MUST exist but thought remove.. will force to
"s= "
Any idea to remove "Asterisk" traces from SDP?
Edit /etc/asterisk/sip.conf :)
;sdpsession=Asterisk PBX ; Allows you to change the SDP session name string, (s=)
; Like the useragent parameter, the default user agent
string
; also contains the Asterisk version.
;sdpowner=root ; Allows you to change the username field in the SDP owner
string, (o=)
; This field MUST NOT contain spaces
BTW the term asterisk is used in many many other places in headers.
Why would you want to hide such stuff....
3:22 p.m.
Thanks Daniel
I know where to change in Asterisk, but i plan to hide in Kamailio :) If
you have an Asterisk farm it would be easy to change at one point.
Just to play.. Changed User Agent.. and thought to change also s= traces on
SDP..
Its not a must, but if you do not show Asterisk to providers, sometimes
help you more :P
2016-02-24 15:11 GMT+01:00 Daniel Tryba <d.tryba(a)pocos.nl>nl>:
On Wed, Feb 24, 2016 at 03:02:32PM +0100, Alberto
Sagredo wrote:
s= MUST exist but thought remove.. will force to
"s= "
Any idea to remove "Asterisk" traces from SDP?
Edit /etc/asterisk/sip.conf :)
;sdpsession=Asterisk PBX ; Allows you to change the SDP session
name string, (s=)
; Like the useragent parameter, the
default user agent string
; also contains the Asterisk version.
;sdpowner=root ; Allows you to change the username field
in the SDP owner string, (o=)
; This field MUST NOT contain spaces
BTW the term asterisk is used in many many other places in headers.
Why would you want to hide such stuff....
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
3:34 p.m.
It seems does not work. Just add at the end s= and s=Asterisk PBX is still
there :)
Thanks anyway for the tip
2016-02-24 15:05 GMT+01:00 Phil Lavin <phil.lavin(a)synety.com>om>:
Try replace_body() replacing “s=Asterisk” with “s=”
*From:* sr-users [mailto:sr-users-bounces@lists.sip-router.org] *On
Behalf Of *Alberto Sagredo
*Sent:* 24 February 2016 14:03
*To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.sip-router.org>
*Subject:* Re: [SR-Users] sdp_remove_line_by_prefix
s= MUST exist but thought remove.. will force to "s= "
Any idea to remove "Asterisk" traces from SDP?
2016-02-24 14:49 GMT+01:00 Alberto Sagredo <alberto.sagredo(a)avanzada7.com
:
Hi
Im trying to remove my Asterisk s= line on SDP but when doing:
sdp_remove_line_by_prefix("s=Asterisk");
Nothing happens.
Loaded sdpops.so module as well.
Is there any additional needed?
BR
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
3:47 p.m.
You’ll have to send a pcap of the message you’re trying to modify, if you need some more
help.
Cheers
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Alberto
Sagredo
Sent: 24 February 2016 14:35
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.sip-router.org>
Subject: Re: [SR-Users] sdp_remove_line_by_prefix
It seems does not work. Just add at the end s= and s=Asterisk PBX is still there :)
Thanks anyway for the tip
2016-02-24 15:05 GMT+01:00 Phil Lavin
<phil.lavin@synety.com<mailto:phil.lavin@synety.com>>:
Try replace_body() replacing “s=Asterisk” with “s=”
From: sr-users
[mailto:sr-users-bounces@lists.sip-router.org<mailto:sr-users-bounces@lists.sip-router.org>]
On Behalf Of Alberto Sagredo
Sent: 24 February 2016 14:03
To: Kamailio (SER) - Users Mailing List
<sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>>
Subject: Re: [SR-Users] sdp_remove_line_by_prefix
s= MUST exist but thought remove.. will force to "s= "
Any idea to remove "Asterisk" traces from SDP?
2016-02-24 14:49 GMT+01:00 Alberto Sagredo
<alberto.sagredo@avanzada7.com<mailto:alberto.sagredo@avanzada7.com>>:
Hi
Im trying to remove my Asterisk s= line on SDP but when doing:
sdp_remove_line_by_prefix("s=Asterisk");
Nothing happens.
Loaded sdpops.so module as well.
Is there any additional needed?
BR
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org<mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
3:52 p.m.
On Wed, Feb 24, 2016 at 03:22:46PM +0100, Alberto Sagredo wrote:
I know where to change in Asterisk, but i plan to hide
in Kamailio :) If
you have an Asterisk farm it would be easy to change at one point.
Just to play.. Changed User Agent.. and thought to change also s= traces on
SDP..
Ofcourse I'm kind of trolling with my response, I have some asterisk
commercial implementations in my network that try to hide they are using
asterisk, but you can spot them easily in most cases. You'll need to
look further than SDP body to filter asterisk from responses (see the
to/from headers, the s@ in URI etc.).
Its not a must, but if you do not show Asterisk to
providers, sometimes
help you more :P
This is not experience, I'm open about the fact we use asterisk (and
kamailio ofcourse) and never had that backfire in any way.
4:05 p.m.
No problem Daniel. Im proud of using Asterisk, and having being done for
years.. Thats not the fact.
Just when you want to hide your topology inside to attackers or so, maybe
that would be useful. Off course there is other ways to check and look for.
Some providers i found... see Asterisk and relax their configuration
problems to your side.. Somes not, and SIP traces talks most of the times..
I just wonder if its possible, but seems with s= inside body not. Just
being curious while playing..
2016-02-24 15:52 GMT+01:00 Daniel Tryba <d.tryba(a)pocos.nl>nl>:
On Wed, Feb 24, 2016 at 03:22:46PM +0100, Alberto
Sagredo wrote:
I know where to change in Asterisk, but i plan to
hide in Kamailio :) If
you have an Asterisk farm it would be easy to change at one point.
Just to play.. Changed User Agent.. and thought to change also s= traces
on
SDP..
Ofcourse I'm kind of trolling with my response, I have some asterisk
commercial implementations in my network that try to hide they are using
asterisk, but you can spot them easily in most cases. You'll need to
look further than SDP body to filter asterisk from responses (see the
to/from headers, the s@ in URI etc.).
Its not a must, but if you do not show Asterisk
to providers, sometimes
help you more :P
This is not experience, I'm open about the fact we use asterisk (and
kamailio ofcourse) and never had that backfire in any way.
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
9 May
9 May
9:21 a.m.
Alberto Sagredo <alberto.sagredo(a)avanzada7.com>om>:
Im trying to remove my Asterisk s= line on SDP but
when doing:
sdp_remove_line_by_prefix("s=Asterisk");
Nothing happens.
Hi Alberto
Did you try with 4.4 yet?
I made some changes to sdpops and I think your example should now work
as well as some other short comings:
https://github.com/kamailio/kamailio/commit/5db4cec2c9e8ab62c711738eae181af…
Best regards
--
Mikko Lehto
1:07 p.m.
Hi Mikko
Thanks !
I will test and let you know
2016-05-09 9:21 GMT+02:00 Mikko Lehto <mslehto(a)iki.fi>fi>:
Alberto Sagredo
<alberto.sagredo(a)avanzada7.com>om>:
Im trying to remove my Asterisk s= line on SDP
but when doing:
sdp_remove_line_by_prefix("s=Asterisk");
Nothing happens.
Hi Alberto
Did you try with 4.4 yet?
I made some changes to sdpops and I think your example should now work
as well as some other short comings:
https://github.com/kamailio/kamailio/commit/5db4cec2c9e8ab62c711738eae181af…
Best regards
--
Mikko Lehto
2930
days inactive
3005
days old
10 comments
4 participants
participants (4)
-
Alberto Sagredo -
Daniel Tryba -
Mikko Lehto -
Phil Lavin