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Hi Daniel,<br>
<br>
Indeed, locally generated replies provoke a segmentation fault in my
code because of the missing msg pointer in such cases.<br>
I am currently testing a version where I generate the msg from the
buf to be sent by using the parse_msg() function.<br>
Conceptually, do you see any problems with this approach?<br>
<br>
Thank you,<br>
Lucian<br>
<br>
On 11/27/2014 10:37 AM, Daniel-Constantin Mierla wrote:
<blockquote cite="mid:5476E2E1.3050207@gmail.com" type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
Hi Lucian,<br>
<br>
the patch is still in radar, just that last month was crazy busy
from various aspects and didn't get the time to handle it.<br>
<br>
<div class="moz-cite-prefix">On 27/11/14 09:09, Lucian Balaceanu
wrote:<br>
</div>
<blockquote cite="mid:5476DC41.8010208@1and1.ro" type="cite"> Hi
Daniel,<br>
<br>
I must admit this run_onsend() patch for stateful replies
creation was not quite a success story. However, I think it
serves a practical purpose, for example in Homer tracing and
could be useful for the community. Again, I propose my past
solution, with some questions:<br>
<br>
1. I am unsure if the place I introduced the run_onsend call is
appropriate since the buf used for msg_send is constructed <br>
build_res_buf_from_sip_req and build_res_buf_from_sip_res calls.<br>
</blockquote>
<br>
These functions are to build the reply from request (local
generated reply) or from the incoming reply (forwarding reply).<br>
<br>
I am wondering what would take to call onsend route for both
forwarded and local generated messages (no matter is request or
reply) -- might become simpler by having the code in the wrapper
function sending to the network from core, on the other hand could
break scripting as no msg structure is available for local
generated messages. Otherwise the benefit can be also in
coherency.<br>
<br>
<br>
<blockquote cite="mid:5476DC41.8010208@1and1.ro" type="cite"> <br>
2. Also, we can maybe unite these if call branches I created:<br>
send_res = msg_send(&uas_rb->dst, buf, res_len);<br>
send_res = SEND_PR_BUFFER( uas_rb, buf, res_len );<br>
</blockquote>
<br>
SEND_PR_BUFFER seems to be a wrapper around msg_send() for safety
and debugging processes, so it can be used.<br>
<br>
<blockquote cite="mid:5476DC41.8010208@1and1.ro" type="cite"> <br>
3. Do you think a get_send_socket snippet as follows should be
inserted before the <i><b>if (onsend_route_enabled(SIP_REPLY)){</b></i>
:<br>
<br>
if(dst.send_sock == NULL) {<br>
dst.send_sock=get_send_socket(msg, &dst.to,
dst.proto);<br>
if (dst.send_sock==0){<br>
LM_ERR("cannot forward reply\n");<br>
}<br>
}<br>
</blockquote>
<br>
Is the above referring to the patch attached? If the send_sock is
needed elsewhere after the IF block, then should be inserted
before.<br>
<br>
One remark, new variables should be declared at the beginning of
the blocks, you mixed the style with two new vars you added --
this is more a suggestions as we try to stay compatible with old c
standards -- I know it is not everywhere in the code, but we
should aim at it.<br>
<br>
Cheers,<br>
Daniel<br>
<blockquote cite="mid:5476DC41.8010208@1and1.ro" type="cite"> <br>
Thank you,<br>
Lucian<br>
<br>
On 10/29/2014 02:15 PM, Daniel-Constantin Mierla wrote:
<blockquote cite="mid:5450DA4B.9050906@gmail.com" type="cite">
Hello Lucian,<br>
<br>
I applied your patch with some fixes.<br>
<br>
I haven't checked with stateful replies, at some point a
function from core should be used. You can go ahead and see if
it works, if not, let me know and I can look into it as well.
You can follow the callbacks for TMCB_RESPONSE_OUT or
TMCB_RESPONSE_FWDED inside tm code, they should lead to the
place where a sip response is going to be sent out.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 27/10/14 12:51, Lucian
Balaceanu wrote:<br>
</div>
<blockquote cite="mid:544E31B9.9060802@1and1.ro" type="cite">
Hello Daniel,<br>
<br>
I must admit I only saw your mail last Friday. Until the
10th of October I was also on vacation. I know that you
actually committed some of the changes together with your
comments on the 12th this month. <br>
<br>
I don't know if we can consider the topic of the patch
closed. As far as I understand, the state-full replies have
not been addressed, right? (There should be a change in the
t_reply.c) I followed the code to the relay_reply but I did
not yet come to find the send function. Should I pursue
further?<br>
<br>
Thank you,<br>
Lucian Balaceanu<br>
<br>
<blockquote cite="mid:5448B8C5.5030007@1und1.de" type="cite">
<div class="moz-forward-container"> Hi Lucian,<br>
<br>
somehow I forgot to follow up on this. But we need to
get sorted out soon, before we release, so it works as
expected with the new version. See more comments inline.<br>
<br>
<br>
<div class="moz-cite-prefix">On 17/09/14 18:09, Lucian
Balaceanu wrote:<br>
</div>
<blockquote cite="mid:5419B240.5000005@1and1.ro"
type="cite"> Hi Daniel,<br>
<br>
Please forgive me for my delay in responding to your
mail.<br>
Please find attached a second version of the
onsend_route_reply patch (which again has some
problems). As per your previous indications I did the
following:<br>
<br>
<b>Issue1</b><br>
<blockquote cite="mid:53FDC46E.7050909@gmail.com"
type="cite"> From performances point of view, there
can be added a config parameter to enable running of
onsend_route for replies:<br>
<br>
onsend_route_reply = 0|1<br>
</blockquote>
<br>
Following <a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="http://www.asipto.com/pub/kamailio-devel-guide/#c08add_parameters">http://www.asipto.com/pub/kamailio-devel-guide/#c08add_parameters</a>
I have tried to add onsend_route_reply parameter. The
code compiles, but when trying to start kamailio with
this parameter inside, the parsing fails with syntax
errors signaling:<br>
<br>
<i> 0(1321) :<core> [cfg.y:3423]: yyerror_at():
parse error in config file kamailio-basic.cfg.4.1,
from line 107, column 1 to line 108, column 0:
syntax error<br>
0(1321) : <core> [cfg.y:3423]: yyerror_at():
parse error in config file kamailio-basic.cfg.4.1,
from line 107, column 1 to line 108, column 0: <br>
ERROR: bad config file (2 errors)</i><br>
</blockquote>
<br>
The issue is:<br>
<br>
<pre wrap="">+<INITIAL>{ONSEND_RT_REPLY} { yylval.intval=atoi(yytext);
+ yy_number_str=yytext; return NUMBER; }
It should be:
+<INITIAL>{ONSEND_RT_REPLY} { yylval.intval=atoi(yytext);
+ yy_number_str=yytext; return ONSEND_RT_REPLY; }
</pre>
<br>
<blockquote cite="mid:5419B240.5000005@1and1.ro"
type="cite"> <br>
<b>Issue2</b><br>
<blockquote cite="mid:53FDC46E.7050909@gmail.com"
type="cite"> #define onsend_enabled(rtype)
(onsend_rt.rlist[DEFAULT_RT]?((rtype==SIP_REPLY)?onsend_route_reply:1):0)<br>
</blockquote>
That is to say you see it best to take the chek for
onsend_rt.list[DEFAULT_RT] from inside run_onsend()
function and call this onsend_enabled(...) before the
run_onsend()? <br>
</blockquote>
<br>
This is to detect whether the onsend_route should be
executed for SIP replies. The condition being:<br>
<br>
- if is a sip reply and onsend_route is set and the
onsend_route_reply parameter is 1<br>
<blockquote cite="mid:5419B240.5000005@1and1.ro"
type="cite"> <br>
<b>Issue3</b><br>
<blockquote cite="mid:53FDC46E.7050909@gmail.com"
type="cite"> On the other hand, is onsend_route also
executed for local requests? I had in mind it is
only for received requests that are forwarded ...
Iirc, on onsend_route, the sip message is the one
received, the outgoing content being accessible via
$snd(buf).<br>
<br>
</blockquote>
I agree with you with taking out the locally generated
requests and only left the run_onsend call in
do_forward_reply function (inside forward.c).<br>
Could you point me to the reply relaying function that
is called for state-full processing? <br>
</blockquote>
Stateful processing for replies is mainly done in
t_reply.c from tm module. At some point there should be
a send buffer function call.<br>
<br>
Cheers,<br>
Daniel<br>
<blockquote cite="mid:5419B240.5000005@1and1.ro"
type="cite"> <br>
Thank you and sorry again for my late answer,<br>
Lucian<br>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://twitter.com/#%21/miconda">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a></pre>
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</blockquote>
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<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://twitter.com/#%21/miconda">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a></pre>
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<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://twitter.com/#%21/miconda">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a></pre>
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