sr-users March 2012

sr-users@lists.kamailio.org

87 participants
163 discussions

Re: [SR-Users] Accessing #!define "variables" from within lua
by Alex Balashov 24 Mar '12

24 Mar '12

Have you considered using selectors/cfg_get variables instead? They are also a common way to store various types of "global" values/constants, with the difference that they can be accessed at run time using PV container functions instead of set at preprocessing. myproject.local_ip = "1.2.3.4" descr "IP address" $sel(cfg_get.my project.local_ip) Or SER-style: @cfg_get.my project.local_ip You can evaluate those in Lua, right? -- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Atlanta, GA 30030 Tel: +1-678-954-0671 Web: http://www.evaristesys.com/, http://www.alexbalashov.com Asgaroth <00asgaroth00(a)gmail.com> wrote: >Hi All, > >I am looking at writing a lua function that would really benefit from >accessing "variables" that I would have defined by using the #!define >statement. Is this at all possible? I've tried looking at the >documentation surrounding lua and kamailio, but I cannot see how I would >access it. I thought I'd ask the list to see if anyone else may have >attempted this. > >for example, I may have > >#!define INTERNAL_ADDRESS 1.2.3.4 > >Which I subsequently use through the the routing script to refer to the >internal address I am listening on. Now I would like to try and access >this "variable" from a lua script. Any pointers/tips/workarounds would >be greatly appreciated. > >Thanks > >_______________________________________________ >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 2

Forward UAC Registration with Authentication (like Upper Registration or Passthrough Registration)
by Robert 24 Mar '12

24 Mar '12

Sorry to spam all 3 boards at the same time I know there are smart people on these lists and hoping that one might be willing to send an example config to assist a n00b to SER. I need to configure a proxy (like SBC) to listen on port X where X is not 5060. I want the UAC's registration to be forwarded (NOT REDIRECT) to the real SIP server on port 5060 The far end is not an Asterisk server so any examples of Asterisk do not work. It is not IP auth the authentication relies in the far end. Open to any solution of open source software K/OpenSIPS/OpenSBC etc. IP phone ----> open source -----> SIP server (UAC) ( PORT != 5060) ( PORT = 5060) I have tried all sorts of methods like rewritehostport / t_relay etc etc. Would uac_auth work? And if so anyone have any good examples of dynamic as I do not want to store any credentials in the open source proxy.

2 1

Re: [SR-Users] modify FROM field in the "failure_route" block
by Alex Balashov 24 Mar '12

24 Mar '12

I am going to have to go with the "upgrade" crowd in this one. Running OpenSER 1.3 at this point is like running a libc5-based Linux distro. Almost no advice or discussion is relevant to it because there have been such tectonic, generational shifts since. -- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Atlanta, GA 30030 Tel: +1-678-954-0671 Web: http://www.evaristesys.com/, http://www.alexbalashov.com Edson - Lists <4lists(a)gmail.com> wrote: >Please upgrade to latest stable and try again.... > >Why? If you have to ask it, than you didn't got it... > >new version === new functionalities > >99% of list support and tips are based on last stable version. 1.3 is >pretty old... > >Edson. > >Em 23/03/2012 10:06, Robert R escreveu: >> Hi, >> >> Even though when I try to use "uac_replace_from( )" in branch_route >> block I get the same error message: >> >> branch_route[2] >> { >> if ( $avp(i:204) ) >> { >> uac_replace_from("hello"); >> } >> >> } >> >> >> error message: >> >> Not starting openser: invalid configuration file! >> Mar 23 09:03:00 [7542] CRITICAL:core:yyerror: parse error in config >> file, line 623, column 26-27: Command cannot be used in the block >> Mar 23 09:03:00 [7542] ERROR:core:main: bad config file (1 errors) >> >> PS: I am running an old release of openser 1.3. >> >> Thanks, >> R >> >> >> >> >> On Thu, Mar 22, 2012 at 1:23 PM, Daniel-Constantin Mierla >> <miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote: >> >> >> >> On 3/22/12 6:12 PM, Alex Balashov wrote: >> >> On 03/22/2012 01:00 PM, Robert R wrote: >> >> When I am trying to modify FROM field in the "failure_route" >> block I >> get an error message: >> >> failure_route[1] >> { >> ... >> uac_replace_from("$avp(i:204)"__); >> append_branch(); >> t_relay(); >> } >> >> Not starting openser: invalid configuration file! >> Mar 22 10:51:39 [6457] CRITICAL:core:yyerror: parse error in >> config >> file, line 662, column 32-33: Command cannot be used in the >> block >> Mar 22 10:51:39 [6457] ERROR:core:main: bad config file (1 >> errors) >> >> >> You can probably get around it this way: >> >> failure_route[1] >> { >> ... >> >> append_branch(); >> >> route(STUFF); >> t_relay(); >> } >> >> >> route[STUFF] >> { >> uac_replace_from(...); >> } >> >> indeed this should work -- it is no reason of not being usable in >> failure_route, perhaps is so from the time of development. The >> function itself is allowed in branch_route which is called from >> inside t_relay() (when t_on_branch(...) is used), therefore we can >> relax the restriction for failure_route, imo. >> >> One thing to take care of, if you use uac_replace_from() in request >> route and then in failure route, you may end in malformed format, so >> it is recommended to use it in branch_route, then the changes done >> by the function will be per each forwarded branch. >> >> Cheers, >> Daniel >> >> -- >> Daniel-Constantin Mierla >> Kamailio Advanced Training, April 23-26, 2012, Berlin, Germany >> http://www.asipto.com/index.__php/kamailio-advanced-__training/ >> <http://www.asipto.com/index.php/kamailio-advanced-training/> >> >> >> >> _________________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >> sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org> >> http://lists.sip-router.org/__cgi-bin/mailman/listinfo/sr-__users >> <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> >> >> >> >> >> _______________________________________________ >> 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 > >_______________________________________________ >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 2

Re: [SR-Users] Authentication on loose_route();
by Alex Balashov 24 Mar '12

24 Mar '12

Clearly, you can only authenticate sequential requests corresponding to calls whose initial requests were subject to authentication. If the initial request was not authenticated, there is no reason to believe that the endpoint would support authentication of sequential requests. As to whether you should do this, that is a controversial matter. I suppose that the security-maximising approach would be to challenge all requests, but it invites problems with many endpoints. -- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Atlanta, GA 30030 Tel: +1-678-954-0671 Web: http://www.evaristesys.com/, http://www.alexbalashov.com David <kamailio.org(a)spam.lublink.net> wrote: > > >Hello, > >Should I be requiring users to authenticate before letting >them into loose_route(); ? What about anonymous calls from E164, how do >I authenticate these calls after they have started? > >Thanks, > >David > > > >_______________________________________________ >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

2 1

Authentication on loose_route();
by David 23 Mar '12

23 Mar '12

Hello, Should I be requiring users to authenticate before letting them into loose_route(); ? What about anonymous calls from E164, how do I authenticate these calls after they have started? Thanks, David

1 0

cached $TV is 0 in failure route
by Klaus Darilion 23 Mar '12

23 Mar '12

Hi! Is this by design? I would expect it to be either the same value as in the request route, or even better to be calculated new every time it enters the failure route. regards Klaus

2 7

memory allocation failure while reading ca_list
by Juha Heinanen 23 Mar '12

23 Mar '12

in tls.cfg, i made ca_list to point to ca-certificates.crt file that comes with debian. when i then started sip router, i got errors Mar 19 08:45:42 test /usr/sbin/sip-proxy[28093]: ERROR: tls [tls_domain.c:447]: TLSc<default>: Unable to load CA list '/etc/ssl/certs/ca-certificates.crt' Mar 19 08:45:42 test /usr/sbin/sip-proxy[28093]: ERROR: tls [tls_domain.c:448]: load_ca_list:error:07064041:memory buffer routines:BUF_MEM_grow:malloc failure Mar 19 08:45:42 test /usr/sbin/sip-proxy[28093]: ERROR: tls [tls_domain.c:448]: load_ca_list:error:0906D041:PEM routines:PEM_read_bio:malloc failure Mar 19 08:45:42 test /usr/sbin/sip-proxy[28093]: ERROR: tls [tls_domain.c:448]: load_ca_list:error:0B084009:x509 certificate routines:X509_load_cert_crl_file:PEM lib Mar 19 08:45:42 test /usr/sbin/sip-proxy[28093]: ERROR: <core> [sr_module.c:889]: init_mod_child(): Error while initializing module tls (/usr/lib/sip-proxy/modules/tls.so) Mar 19 08:45:42 test /usr/sbin/sip-proxy[28093]: ERROR: <core> [main.c:1554]: ERROR: main: error in init_child(PROC_INT) -- exiting is that because there are too many (= 139) entries in ca-certificates.crt? if so, how to solve the problem? would it be a good idea that sip router would be default be able to handle this correctly? -- juha

3 14

modify FROM field in the "failure_route" block
by Robert R 23 Mar '12

23 Mar '12

Hi, When I am trying to modify FROM field in the "failure_route" block I get an error message: failure_route[1] { ... uac_replace_from("$avp(i:204)"); append_branch(); t_relay(); } Not starting openser: invalid configuration file! Mar 22 10:51:39 [6457] CRITICAL:core:yyerror: parse error in config file, line 662, column 32-33: Command cannot be used in the block Mar 22 10:51:39 [6457] ERROR:core:main: bad config file (1 errors) It seems "uac_replace_from()" can not be used in the "failure_route" block. What's the correct way to modify (appending a tag) FROM field in the "failure_route" block? Thanks, R

5 5

Search all dialogs - Kamailiio 3.0.3
by Charles Chance 23 Mar '12

23 Mar '12

Hi all, I was wondering if anyone could offer any advice please. We are using the dialog module and need to be able to find out whether another dialog exists within a particular profile and having a specific value, so that we can send the new call to the same gateway. As far as I am aware, the only way to see other dialogs from the request route is to query the database (having set db mode to realtime). This is ok, but the profile/value is not stored in the database table. Is there a way of fetching the information that I am missing, or should we just add some customisation to the module so that it also writes this information to db? Many thanks in advance, Charles

1 0

Accessing #!define "variables" from within lua
by Asgaroth 23 Mar '12

23 Mar '12

Hi All, I am looking at writing a lua function that would really benefit from accessing "variables" that I would have defined by using the #!define statement. Is this at all possible? I've tried looking at the documentation surrounding lua and kamailio, but I cannot see how I would access it. I thought I'd ask the list to see if anyone else may have attempted this. for example, I may have #!define INTERNAL_ADDRESS 1.2.3.4 Which I subsequently use through the the routing script to refer to the internal address I am listening on. Now I would like to try and access this "variable" from a lua script. Any pointers/tips/workarounds would be greatly appreciated. Thanks

1 0

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sr-users March 2012