[SR-Users] Migrating from OpenSER config file question.

Daniel-Constantin Mierla miconda at gmail.com
Thu Oct 6 11:11:02 CEST 2016


Hello,

I just tested with:

$avp(s:callfwd) = $ruri;

using kamailio.cfg from master branch and all is ok.

Have you loaded the pv module?

Cheers,
Daniel

On 06/10/16 00:56, Brian McCrary wrote:
> Hello,
>
> Thanks so much for the help in pointing me in the right direction.  I 
> finally had some time today to work with Kamailio a little.  I should 
> have pointed out I had commented the avp_write line out in the config 
> file and had attempted to convert it to the new format as you had 
> suggested.  I had $avp(s:callfwd) = $ruri; instead of $avp(callfwd) = 
> $ruri; but it seems both give the same error.
>
> With that being said, thanks for pointing out the sqlops module.  It 
> looks like I should be able to make it do everything I need, and then 
> some.  There are some things I have been wanting to improve upon and it 
> looks like this will certainly help.  There has been a lot of really 
> nice things added to these new releases!  I'm going to give that a go 
> and see if I can fix the error by eliminating the problem altogether. :)
>
> Thanks,
>
> Brian
>
> On Mon, Oct 03, 2016 at 09:00:24PM +0200, Daniel-Constantin Mierla wrote:
>> Hello,
>>
>> hmm, the format $avp(s:callfwd) should still work fine. I will look
>> deeper at it when I get a chance after returning to the office in few
>> days. Anyhow, try to use $avp(callfwd), it is the same as $avp(callfwd)
>> if you haven't defined an overlapping avp-alias.
>>
>> On the other hand, I think avp_write(...) is no longer available. Now
>> you can use direct assignment, like:
>>
>> $avp(callfwd) = $ruri;
>>
>> One very useful additions (in newer versions than 1.0, otherwise being
>> quite old by now) is the sqlops module that allows to do all kind of sql
>> operations from configuration file, in many cases saving from the
>> complexity of using avpops db functions. See:
>>
>> https://www.kamailio.org/docs/modules/stable/modules/sqlops.html#idp44901364
>>
>> So you can do INSERT/UPDATE/REPLACE/... as you need from config file,
>> building the sql query with the variables you want.
>>
>> Cheers,
>> Daniel
>>
>> On 30/09/16 18:29, Brian McCrary wrote:
>>> Hello group,
>>>
>>> I know this may be hard to believe but I'm in the process of upgrading 
>>> an old, but stable, OpenSER 1.0 group of servers to Kamilio.  I'm 
>>> basically going to sort of start from scratch with the database and 
>>> export my old MySQL database and write some scripts to reimport the data 
>>> using kamctl scripts since the database structure has changed 
>>> substantially since then it looks like.
>>>
>>> I've mostly migrated the config file over fairly easily, except for 
>>> AVPops.  I've got a section of config file that writes into the 
>>> usr_preferences database for call forwarding, but I seem to get the same 
>>> error anywhere I try to write to the database using AVPops.  Here's the 
>>> output I get when checking the config:
>>>
>>>  0(1378) DEBUG: <core> [pvapi.c:268]: pv_cache_add(): PV cache not initialized, doing it now
>>>  0(1378) ERROR: <core> [pvapi.c:828]: pv_parse_spec2(): error searching pvar "avp"
>>>  0(1378) ERROR: <core> [pvapi.c:1032]: pv_parse_spec2(): wrong char [s/115] in [$avp(s:callfwd)] at [5 (5)]
>>>  0(1378) : <core> [cfg.y:3368]: yyerror_at(): parse error in config file 
>>> /usr/local/etc/kamailio/kamailio.cfg, line 145, column 4-18: Can't get from cache: $avp(s:callfwd)
>>> ERROR: bad config file (1 errors)
>>>
>>> Here's what I think are the revelant portions of the config file:
>>>
>>> modparam("avpops", "db_url", "mysql://user:pass@localhost/kamailio")
>>> modparam("avpops", "avp_table", "usr_preferences")
>>> modparam("avpops", "uuid_column", "uuid")
>>> modparam("avpops", "username_column", "username")
>>> modparam("avpops", "domain_column", "domain")
>>> modparam("avpops", "attribute_column", "attribute")
>>> modparam("avpops", "value_column", "value")
>>> modparam("avpops", "type_column", "type")
>>> <snip>
>>>                         if (avp_db_load("$from/username", "$avp(s:callfwd)"))
>>>                         {
>>>                                 if(!avp_db_delete("$from/username", "$avp(s:callfwd)/usr_preferences"))
>>>                                 {
>>>                                         sl_send_reply("500", "Server DB error");                                }
>>>                                 }
>>>
>>> #                       avp_write("$ruri","$avp(s:callfwd)"); # Old OpenSER 1.0 syntax...
>>>                         $avp(s:callfwd) = $ruri; # New Kamailio syntax ??
>>>                         avp_db_store("$from/username","$avp(s:callfwd)/usr_preferences");
>>>                         t_relay();
>>>                         return;
>>>
>>> Basically I just want to write the ruri into the usr_preferences 
>>> database with an attribute of callfwd but not sure what I'm missing.  I 
>>> see the error "Can't get from cache" but not sure how that pertains to 
>>> what I'm trying to do.  Anyone have any ideas?
>>>
>>> Thanks,
>>>
>>> Brian
>>>
>>> _______________________________________________
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>> -- 
>> Daniel-Constantin Mierla
>> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>> Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com




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