Re: [OpenSIPS-Users] Handling 488 on a leg B

2018-02-02 Thread Dmitry 
Hi Bogdan,

Thank you indeed for the help!

After moving the first changing body to branch (and second too), it works 
perfect.

 

From: Bogdan-Andrei Iancu [mailto:bog...@opensips.org] 
Sent: Friday, February 2, 2018 5:18 PM
To: Dmitry <neta...@gmail.com>; 'OpenSIPS users mailling list' 
<users@lists.opensips.org>
Subject: Re: [OpenSIPS-Users] Handling 488 on a leg B

 

Hi Dmitry,

In order to push per-branch changes (changes which are specific only to a 
certain branch and not to all of them), you need to use the branch route - see 
http://www.opensips.org/Documentation/Script-Routes-2-3#toc2

So, put the code for changing the body via rtpengine into a branch route.

Regards,



Bogdan-Andrei Iancu
 
OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 02/02/2018 12:53 PM, Dmitry wrote:

Hi Bogdan,

I change both of them. The first INVITE and the second (after 488).

The first apply successfully, but the second (that in the failure_route) does 
not.

 

My script looks like this:

 

route {

…

  t_on_reply("ONREPLY”);

  if (isbflagset(NAT_BFLAG) && af!=INET6) {

force_rport(); # add rport to first line Via:

route(RTPENGINE_OFFER); # make offer

  }

…

  t_relay();

…

}

 

route[RTPENGINE_OFFER] {

  …

  $avp(rtp_profile) = "trust-address replace-origin 
replace-session-connection ICE=remove DTLS=off RTP/SAVP";

  if 
(rtpengine_offer("$avp(rtp_profile)","$avp(rtp_socket)","$avp(rtp_body)")) {

remove_body_part();

add_body_part("$avp(rtp_body)", "application/sdp"); # first changing 
leg-B - successfully

  }

  …

}

 

onreply_route[ONREPLY] {

…

  t_on_reply("RTPENGINE_ANSWER"); # positive

  t_on_failure("RTPENGINE_488");  # negative

…

}

 

failure_route[RTPENGINE_488] {

…

  if (t_check_status("488") ) {

 

# try to change SDP in leg-B after 488 received - unsuccessfully

#  it returns: ERROR:rtpengine:rtpe_function_call: can't extract body from 
the message. 

# from which message?

if (rtpengine_offer("trust-address replace-origin 
replace-session-connection ICE=remove DTLS=off 
RTP/AVP","$avp(rtp_socket)","$avp(rtp_body)")) {

  remove_body_part();

  add_body_part("$avp(rtp_body)", "application/sdp");

}

# 

 

#  just replace with re.subst

$avp(rtp_body) = $(avp(rtp_body){re.subst,/SAVP/AVP/g});

$avp(rtp_body) = $(avp(rtp_body){re.subst,/a=crypto.*//g});

 # if I use remove_body_part(), then add_body_part() is not adds content. 
INVITE sends without body.

remove_body_part();

 # if I don’t use remove_body_part(), then INVITE contains TWO sdp body 
with RTP/SAVP and RTP/AVP

add_body_part("$avp(rtp_body)", "application/sdp");

#

 

xlog("rtp_body=$avp(rtp_body)\n");

   # xlog for $avp(rtp_body) shows unchanged content (with RTP/SAVP)

 

…

 t_relay();

  }

…

}

 

From: Bogdan-Andrei Iancu [mailto:bog...@opensips.org] 
Sent: Thursday, February 1, 2018 7:51 PM
To: Dmitry  <mailto:neta...@gmail.com> <neta...@gmail.com>; 'OpenSIPS users 
mailling list'  <mailto:users@lists.opensips.org> <users@lists.opensips.org>
Subject: Re: [OpenSIPS-Users] Handling 488 on a leg B

 

Hi Dmitry,

In failure route you re-process the original request (INVITE) and not the 488 
reply - the reply is just the trigger.
Do you change the INVITE SDP before the first attempt (which ends with 488) ? 
Or you change it for the first time in the failure route ?

Regards,




Bogdan-Andrei Iancu
 
OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 02/01/2018 05:34 PM, Dmitry wrote:

Hello Bogdan,

Thank you for advice.

I catched 488 and can send INVITE from failure_route, but I can’t modify body 
inside it.

The main goal is change SAVP profile to AVP when 488 received.

I tried to do it via rtpengine_offer function. It doesn’t work. I guess, it try 
to read the body from response (488 in my case) but not from request.

I tried to rewrite body via remove_body_part and add_body_part functions, it 
also doesn’t work.

So, I don’t understand how exactly rewrite body in failure_route before do 
t_relay().

In addition, I tried making a new branch (via append_branch function and via 
branch_route). It just duplicate my re-INVITE without changing the body.

Could you please drop a hint (example on few lines of code) how to do it?

Thanks.

 

From: Bogdan-Andrei Iancu [mailto:bog...@opensips.org] 
Sent: Wednesday, January 31, 2018 6:55 PM
To: OpenSIPS users mailling list  <mailto:users@lists.opensips.org> 
<users@lists.opensips.org>; Dmitry  <mailto:neta...@gmail.com> 
<neta...@gma

Re: [OpenSIPS-Users] Handling 488 on a leg B

2018-02-02 Thread Bogdan-Andrei Iancu 

Hi Dmitry,

In order to push per-branch changes (changes which are specific only to 
a certainbranch and not to all of them), you need to use the branch 
route- see http://www.opensips.org/Documentation/Script-Routes-2-3#toc2


So, put the code for changing the body via rtpengine into a branch route.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 02/02/2018 12:53 PM, Dmitry wrote:


Hi Bogdan,

I change both of them. The first INVITE and the second (after 488).

The first apply successfully, but the second (that in the 
failure_route) does not.


My script looks like this:

route {

…

t_on_reply("ONREPLY”);

if (isbflagset(NAT_BFLAG) && af!=INET6) {

force_rport(); # add rport to first line Via:

route(RTPENGINE_OFFER); # make offer

}

…

t_relay();

…

}

route[RTPENGINE_OFFER] {

…

$avp(rtp_profile) = "trust-address replace-origin 
replace-session-connection ICE=remove DTLS=off RTP/SAVP";


if 
(rtpengine_offer("$avp(rtp_profile)","$avp(rtp_socket)","$avp(rtp_body)")) 
{


  remove_body_part();

  add_body_part("$avp(rtp_body)", "application/sdp"); # first changing 
leg-B - successfully


}

…

}

onreply_route[ONREPLY] {

…

t_on_reply("RTPENGINE_ANSWER"); # positive

t_on_failure("RTPENGINE_488");  # negative

…

}

failure_route[RTPENGINE_488] {

…

if (t_check_status("488") ) {

# try to change SDP in leg-B after 488 received - unsuccessfully

# it returns: ERROR:rtpengine:rtpe_function_call: can't extract body 
from the message.


# from which message?

if (rtpengine_offer("trust-address replace-origin 
replace-session-connection ICE=remove DTLS=off 
RTP/AVP","$avp(rtp_socket)","$avp(rtp_body)")) {


remove_body_part();

  add_body_part("$avp(rtp_body)", "application/sdp");

}

#

# just replace with re.subst

$avp(rtp_body) = $(avp(rtp_body){re.subst,/SAVP/AVP/g});

$avp(rtp_body) = $(avp(rtp_body){re.subst,/a=crypto.*//g});

# if I use remove_body_part(), then add_body_part() is not adds 
content. INVITE sends without body.


remove_body_part();

# if I don’t use remove_body_part(), then INVITE contains TWO sdp body 
with RTP/SAVP and RTP/AVP


add_body_part("$avp(rtp_body)", "application/sdp");

#

  xlog("rtp_body=$avp(rtp_body)\n");

   # xlog for $avp(rtp_body) shows unchanged content (with RTP/SAVP)

…

t_relay();

}

…

}

*From:*Bogdan-Andrei Iancu [mailto:bog...@opensips.org]
*Sent:* Thursday, February 1, 2018 7:51 PM
*To:* Dmitry <neta...@gmail.com>; 'OpenSIPS users mailling list' 
<users@lists.opensips.org>

*Subject:* Re: [OpenSIPS-Users] Handling 488 on a leg B

Hi Dmitry,

In failure route you re-process the original request (INVITE) and not 
the 488 reply - the reply is just the trigger.
Do you change the INVITE SDP before the first attempt (which ends with 
488) ? Or you change it for the first time in the failure route ?


Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
   http://www.opensips-solutions.com
OpenSIPS Summit 2018
   http://www.opensips.org/events/Summit-2018Amsterdam

On 02/01/2018 05:34 PM, Dmitry wrote:

Hello Bogdan,

Thank you for advice.

I catched 488 and can send INVITE from failure_route, but I can’t
modify body inside it.

The main goal is change SAVP profile to AVP when 488 received.

I tried to do it via rtpengine_offer function. It doesn’t work. I
guess, it try to read the body from response (488 in my case) but
not from request.

I tried to rewrite body via remove_body_part and add_body_part
functions, it also doesn’t work.

So, I don’t understand how exactly rewrite body in failure_route
before do t_relay().

In addition, I tried making a new branch (via append_branch
function and via branch_route). It just duplicate my re-INVITE
without changing the body.

Could you please drop a hint (example on few lines of code) how to
do it?

Thanks.

*From:*Bogdan-Andrei Iancu [mailto:bog...@opensips.org]
*Sent:* Wednesday, January 31, 2018 6:55 PM
    *To:* OpenSIPS users mailling list <users@lists.opensips.org>
<mailto:users@lists.opensips.org>; Dmitry <neta...@gmail.com>
<mailto:neta...@gmail.com>
*Subject:* Re: [OpenSIPS-Users] Handling 488 on a leg B

Hello Dmitry,

What you want to do is called (in SIP) serial forking. Use
failure_route{} to catch the 488 and to add a create a new branch
(with modified body) .

See: http://www.opensips.org/Documentation/Script-Routes-2-3#toc3

Regards,


Bogdan-Andrei Iancu

  


OpenSIPS Founder and Developer

   http://www.opensips-solutions.com

OpenSIPS Summit 2018

   http://www.opensips.org/events/Summit-2018

Re: [OpenSIPS-Users] Handling 488 on a leg B

2018-02-02 Thread Dmitry 
Hi Bogdan,

I change both of them. The first INVITE and the second (after 488).

The first apply successfully, but the second (that in the failure_route) does 
not.

 

My script looks like this:

 

route {

…

  t_on_reply("ONREPLY”);

  if (isbflagset(NAT_BFLAG) && af!=INET6) {

force_rport(); # add rport to first line Via:

route(RTPENGINE_OFFER); # make offer

  }

…

  t_relay();

…

}

 

route[RTPENGINE_OFFER] {

  …

  $avp(rtp_profile) = "trust-address replace-origin 
replace-session-connection ICE=remove DTLS=off RTP/SAVP";

  if 
(rtpengine_offer("$avp(rtp_profile)","$avp(rtp_socket)","$avp(rtp_body)")) {

remove_body_part();

add_body_part("$avp(rtp_body)", "application/sdp"); # first changing 
leg-B - successfully

  }

  …

}

 

onreply_route[ONREPLY] {

…

  t_on_reply("RTPENGINE_ANSWER"); # positive

  t_on_failure("RTPENGINE_488");  # negative

…

}

 

failure_route[RTPENGINE_488] {

…

  if (t_check_status("488") ) {

 

# try to change SDP in leg-B after 488 received - unsuccessfully

#  it returns: ERROR:rtpengine:rtpe_function_call: can't extract body from 
the message. 

# from which message?

if (rtpengine_offer("trust-address replace-origin 
replace-session-connection ICE=remove DTLS=off 
RTP/AVP","$avp(rtp_socket)","$avp(rtp_body)")) {

  remove_body_part();

  add_body_part("$avp(rtp_body)", "application/sdp");

}

# 

 

#  just replace with re.subst

$avp(rtp_body) = $(avp(rtp_body){re.subst,/SAVP/AVP/g});

$avp(rtp_body) = $(avp(rtp_body){re.subst,/a=crypto.*//g});

 # if I use remove_body_part(), then add_body_part() is not adds content. 
INVITE sends without body.

remove_body_part();

 # if I don’t use remove_body_part(), then INVITE contains TWO sdp body 
with RTP/SAVP and RTP/AVP

add_body_part("$avp(rtp_body)", "application/sdp");

#

 

xlog("rtp_body=$avp(rtp_body)\n");

   # xlog for $avp(rtp_body) shows unchanged content (with RTP/SAVP)

 

…

 t_relay();

  }

…

}

 

From: Bogdan-Andrei Iancu [mailto:bog...@opensips.org] 
Sent: Thursday, February 1, 2018 7:51 PM
To: Dmitry <neta...@gmail.com>; 'OpenSIPS users mailling list' 
<users@lists.opensips.org>
Subject: Re: [OpenSIPS-Users] Handling 488 on a leg B

 

Hi Dmitry,

In failure route you re-process the original request (INVITE) and not the 488 
reply - the reply is just the trigger.
Do you change the INVITE SDP before the first attempt (which ends with 488) ? 
Or you change it for the first time in the failure route ?

Regards,



Bogdan-Andrei Iancu
 
OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 02/01/2018 05:34 PM, Dmitry wrote:

Hello Bogdan,

Thank you for advice.

I catched 488 and can send INVITE from failure_route, but I can’t modify body 
inside it.

The main goal is change SAVP profile to AVP when 488 received.

I tried to do it via rtpengine_offer function. It doesn’t work. I guess, it try 
to read the body from response (488 in my case) but not from request.

I tried to rewrite body via remove_body_part and add_body_part functions, it 
also doesn’t work.

So, I don’t understand how exactly rewrite body in failure_route before do 
t_relay().

In addition, I tried making a new branch (via append_branch function and via 
branch_route). It just duplicate my re-INVITE without changing the body.

Could you please drop a hint (example on few lines of code) how to do it?

Thanks.

 

From: Bogdan-Andrei Iancu [mailto:bog...@opensips.org] 
Sent: Wednesday, January 31, 2018 6:55 PM
To: OpenSIPS users mailling list  <mailto:users@lists.opensips.org> 
<users@lists.opensips.org>; Dmitry  <mailto:neta...@gmail.com> 
<neta...@gmail.com>
Subject: Re: [OpenSIPS-Users] Handling 488 on a leg B

 

Hello Dmitry,

What you want to do is called (in SIP) serial forking. Use failure_route{} to 
catch the 488 and to add a create a new branch (with modified body) .

See: http://www.opensips.org/Documentation/Script-Routes-2-3#toc3

Regards,




Bogdan-Andrei Iancu
 
OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 01/30/2018 02:56 PM, Dmitry wrote:

Hello all,

Could you say how can I re-send INVITE with changed SDP to B-leg after receive 
488 from it?

Call flow:

-> A-leg INVITE

<- A-leg 100

-> B-leg INVITE

<- B-leg 100

<- B-leg 488 – I catch it, and want to send INVITE again with properly SDP

-> B-leg ACK

<-A-leg 488

-> B-leg ACK

 

Thanks for any advice.

Cheers!







___
Users mailing list
Users@lists.opensips.org <mailto: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

Re: [OpenSIPS-Users] Handling 488 on a leg B

2018-02-01 Thread Bogdan-Andrei Iancu 

Hi Dmitry,

In failure route you re-process the original request (INVITE) and not 
the 488 reply - the reply is just the trigger.
Do you change the INVITE SDP before the first attempt (which ends with 
488) ? Or you change it for the first time in the failure route ?


Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 02/01/2018 05:34 PM, Dmitry wrote:


Hello Bogdan,

Thank you for advice.

I catched 488 and can send INVITE from failure_route, but I can’t 
modify body inside it.


The main goal is change SAVP profile to AVP when 488 received.

I tried to do it via rtpengine_offer function. It doesn’t work. I 
guess, it try to read the body from response (488 in my case) but not 
from request.


I tried to rewrite body via remove_body_part and add_body_part 
functions, it also doesn’t work.


So, I don’t understand how exactly rewrite body in failure_route 
before do t_relay().


In addition, I tried making a new branch (via append_branch function 
and via branch_route). It just duplicate my re-INVITE without changing 
the body.


Could you please drop a hint (example on few lines of code) how to do it?

Thanks.

*From:*Bogdan-Andrei Iancu [mailto:bog...@opensips.org]
*Sent:* Wednesday, January 31, 2018 6:55 PM
*To:* OpenSIPS users mailling list <users@lists.opensips.org>; Dmitry 
<neta...@gmail.com>

*Subject:* Re: [OpenSIPS-Users] Handling 488 on a leg B

Hello Dmitry,

What you want to do is called (in SIP) serial forking. Use 
failure_route{} to catch the 488 and to add a create a new branch 
(with modified body) .


See: http://www.opensips.org/Documentation/Script-Routes-2-3#toc3

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
   http://www.opensips-solutions.com
OpenSIPS Summit 2018
   http://www.opensips.org/events/Summit-2018Amsterdam

On 01/30/2018 02:56 PM, Dmitry wrote:

Hello all,

Could you say how can I re-send INVITE with changed SDP to B-leg
after receive 488 from it?

Call flow:

-> A-leg INVITE

<- A-leg 100

-> B-leg INVITE

<- B-leg 100

<- B-leg 488 – I catch it, and want to send INVITE again with
properly SDP

-> B-leg ACK

<-A-leg 488

-> B-leg ACK

Thanks for any advice.

Cheers!




___

Users mailing list

Users@lists.opensips.org <mailto: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

Re: [OpenSIPS-Users] Handling 488 on a leg B

2018-02-01 Thread Dmitry 
Hello Bogdan,

Thank you for advice.

I catched 488 and can send INVITE from failure_route, but I can’t modify body 
inside it.

The main goal is change SAVP profile to AVP when 488 received.

I tried to do it via rtpengine_offer function. It doesn’t work. I guess, it try 
to read the body from response (488 in my case) but not from request.

I tried to rewrite body via remove_body_part and add_body_part functions, it 
also doesn’t work.

So, I don’t understand how exactly rewrite body in failure_route before do 
t_relay().

In addition, I tried making a new branch (via append_branch function and via 
branch_route). It just duplicate my re-INVITE without changing the body.

Could you please drop a hint (example on few lines of code) how to do it?

Thanks.

 

From: Bogdan-Andrei Iancu [mailto:bog...@opensips.org] 
Sent: Wednesday, January 31, 2018 6:55 PM
To: OpenSIPS users mailling list <users@lists.opensips.org>; Dmitry 
<neta...@gmail.com>
Subject: Re: [OpenSIPS-Users] Handling 488 on a leg B

 

Hello Dmitry,

What you want to do is called (in SIP) serial forking. Use failure_route{} to 
catch the 488 and to add a create a new branch (with modified body) .

See: http://www.opensips.org/Documentation/Script-Routes-2-3#toc3

Regards,



Bogdan-Andrei Iancu
 
OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 01/30/2018 02:56 PM, Dmitry wrote:

Hello all,

Could you say how can I re-send INVITE with changed SDP to B-leg after receive 
488 from it?

Call flow:

-> A-leg INVITE

<- A-leg 100

-> B-leg INVITE

<- B-leg 100

<- B-leg 488 – I catch it, and want to send INVITE again with properly SDP

-> B-leg ACK

<-A-leg 488

-> B-leg ACK

 

Thanks for any advice.

Cheers!






___
Users mailing list
Users@lists.opensips.org <mailto: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

Re: [OpenSIPS-Users] Handling 488 on a leg B

2018-01-31 Thread Bogdan-Andrei Iancu 

Hello Dmitry,

What you want to do is called (in SIP) serial forking. Use 
failure_route{} to catch the 488 and to add a create a new branch (with 
modified body) .


See: http://www.opensips.org/Documentation/Script-Routes-2-3#toc3

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 01/30/2018 02:56 PM, Dmitry wrote:


Hello all,

Could you say how can I re-send INVITE with changed SDP to B-leg after 
receive 488 from it?


Call flow:

-> A-leg INVITE

<- A-leg 100

-> B-leg INVITE

<- B-leg 100

<- B-leg 488 – I catch it, and want to send INVITE again with properly SDP

-> B-leg ACK

<-A-leg 488

-> B-leg ACK

Thanks for any advice.

Cheers!



___
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