[OpenSIPS-Users] Fwd: uac_auth() segfault

[Justin Zondagh]

Hi Bogdan,

I placed the LM_DBG as follows

        if ( is_script_func_used("uac_auth", -1) ) {
                /* load the UAC_AUTH API as uac_auth() is invoked from
script */
                if(load_uac_auth_api(&uac_auth_api)<0){
                        LM_ERR("can't load UAC_AUTH API, needed for
uac_auth()\n");
                        goto error;
                }

                LM_DBG("Loaded uac_auth api as found in script");
        }

But nothing appears in the log on init.



I'm using the uac_auth() in a failure route



failure_route[ip_auth_fail]
{

        if (t_check_status("401")) {
                xlog("L_INFO","[$ci] Got 401 from Proxy\n");

                avp_db_query("select password from registrant where
username = '$(avp(authuser){s.escape.common})'","$avp(authpass)");

                $avp(authrealm) = "";

                $avp(www) = $(<reply>hdr(WWW-Authenticate));
                avp_subst("$avp(www)", "/Digest\s//");

                #Get the realm from the www-auth header
                $var(numkvp) = $(avp(www){csv.count});
                $var(i) = 0;
                while($var(i) < $var(numkvp)) {

                        $var(temp) = $(avp(www){s.select,$var(i),,});

                        if ($var(temp) =~ "realm.*") {
                                $avp(authrealm) = $var(temp);

avp_subst("$avp(authrealm)","/(realm=\")(.*)(\")/\2/");
                                #$avp(authrealm) := "asterisk";
                        }

                        $var(i) = $var(i) + 1;
                }

                xlog("L_INFO","[$ci] authrealm is [$avp(authrealm)],
authuser is [$avp(authuser)], authpass is [$avp(authpass)]\n");

                #No need for loop prevention as Proxy sends 183 early media
recording saying password is wrong, then sends 603

                if (uac_auth()) {
                        xlog("L_INFO","[$ci] Built auth, sending back to
Proxy\n");

                        t_on_failure("ip_auth_fail");

                        # the $du should really be uri as specified in
Record-Route in 401, but using reply's source IP for now
                        $du = "sip:" + $(<reply>si) + ":5060";

                        xlog("L_INFO", "[$ci] Sending request with Auth
header to [$du]\n");
                        t_relay();

                }
        }

        if (t_was_cancelled()) {
                exit;
        }

}





*Justin Zondagh*zondagh at gmail.com

Cape Town | South Africa
skype: jrzondagh
m: +27 72 598 4887 | f: +27 86 546 1405
uk: +44 20 328 99610


On Tue, Mar 25, 2014 at 7:28 PM, Bogdan-Andrei Iancu <bogdan at opensips.org>wrote:

>  Hello Justin,
>
> In the 1.10 code, in the UAC module, in the mod_init function, the binding
> to UAC AUTH module is to be done. See line 171 in modules/uac/uac.c
>
>
>     if ( is_script_func_used("uac_auth", -1) ) {
>         /* load the UAC_AUTH API as uac_auth() is invoked from script */
>         if(load_uac_auth_api(&uac_auth_api)<0){
>             LM_ERR("can't load UAC_AUTH API, needed for uac_auth()\n");
>             goto error;
>         }
>     }
>
>
> Maybe the is_script_func_used() doesn't trigger properly there - in what
> kind of route are you using the uac_auth() function ? Could you place a
> LM_DBG() in that 'if' statement to see if it goes in there ?
>
> Thank and regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
> On 25.03.2014 14:28, Justin Zondagh wrote:
>
> Hi Bogdan,
>
>  I have found and fixed the bug. The uac_auth_api wasn't being loaded
> before being called as you suspected.
>
>  I added this code
>
>          if(load_uac_auth_api(&uac_auth_api) < 0){
>                 LM_INFO("Error loading uac_auth_api");
>                 goto error;
>         }
>
>
>  before calling the API on the next line:
>
>          crd = uac_auth_api._lookup_realm( &auth->realm );
>
>
>  Seems to work now...
>
>  How do we commit this to code base?
>
>  Regards,
> Justin
>
>
>
>
> *Justin Zondagh *zondagh at gmail.com
>
> Cape Town | South Africa
> skype: jrzondagh
> m: +27 72 598 4887 | f: +27 86 546 1405
> uk: +44 20 328 99610
>
>
> On Tue, Mar 25, 2014 at 10:18 AM, Justin Zondagh <zondagh at gmail.com>wrote:
>
>> They were the wrong way round, but swapped them and seems to have the
>> same issue:
>>
>
>
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