Thanks Miklos,

I think this is just what I'm looking for.
But I get some errors for this line:
if ((src_ip != @ruri.host) || (src_port != @ruri.port)) {

 0(30074) parse error (175,16-17): syntax error
 0(30074) parse error (175,16-17): ip address or hostname expected
 0(30074) parse error (175,16-17): bad command
 0(30074) parse error (175,21-22): bad command
 0(30074) parse error (175,21-22): bad command
 0(30074) parse error (175,26-27): bad command
 0(30074) parse error (175,26-27): bad command
 0(30074) parse error (175,28-30): bad command
 0(30074) parse error (175,31-32): bad command
 0(30074) parse error (175,32-40): bad command
 0(30074) parse error (175,41-43): bad command
 0(30074) parse error (175,44-45): bad command
 0(30074) parse error (175,49-50): bad command
 0(30074) parse error (175,49-50): bad command
 0(30074) parse error (175,54-55): bad command
 0(30074) parse error (175,54-55): bad command
 0(30074) parse error (175,55-56): bad command
 0(30074) parse error (175,57-58): bad command

Any idea why ?

Thanks,
ilker

-----Original Message-----
From: Miklos Tirpak [mailto:miklos@iptel.org]
Sent: Wednesday, July 12, 2006 11:58 AM
To: İlker Aktuna (Koç.net)
Cc: serusers@iptel.org
Subject: Re: [Serusers] prevent INVITE without REGISTERing

Hi Ilker,

just my first idea, not tested:


1. lookup the From HF

if (!lookup_user("From")) {
        # reject the INVITE
        ...
}

2. save original To UID and Request URI

$orig_to_uid = $tu.uid;
$orig_req_uri = @ruri;

3. set To UID -- registrar module will use this in the lookup

$tu.uid = $fu.uid;

4. lookup From HF and compare the source address of the INVITE with the source address of the REGISTER message

if (lookup("location")) {
        if ((src_ip != @ruri.host) || (src_port != @ruri.port)) {
                # reject the INVITE
                ...
        }
        # restore original To UID and Request URI
        $tu.uid = $orig_to_uid;
        attr2uri("$orig_req_uri");
} else {
        # reject the INVITE
        ...
}

Note, that the above solution is a bit ugly, you can get into troubles when the user registers multiple contact addresses. It is better to disable branches (see append_branches parameter in registrar module), but you loose some functionality.

Regards,
Miklos

İlker Aktuna (Koç.net) wrote:
>
> Hi everyone,

> I am still trying to find a solution to this problem. (but couldn't
> find
> yet)
> Victor was trying to help me but I think he's not able to reply these days.

> Is there any idea to achieve what I need.

> Thanks,
> ilker
>
> ----------------------------------------------------------------------
> --
> *From:* serusers-bounces@lists.iptel.org
> [mailto:serusers-bounces@lists.iptel.org] *On Behalf Of *İlker Aktuna
> (Koç.net)
> *Sent:* Tuesday, July 11, 2006 1:41 PM
> *To:* Victor Stanescu
> *Cc:* serusers@iptel.org
> *Subject:* RE: [Serusers] prevent INVITE without REGISTERing
>
> Hi,
>
> What if my proxy does not handle authenticating INVITE messages ?
>
> In that case I think the best way is to lookup location table for the
> source URI.
> If the source URI location matches the location in that table then we
> must permit INVITE message.
> How can I configure this ?
>
> Thanks,
> ilker
>
> -----Original Message-----
> From: serusers-bounces@lists.iptel.org
> [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Victor Stanescu
> Sent: Monday, July 10, 2006 1:49 PM
> Cc: serusers@iptel.org
> Subject: Re: [Serusers] prevent INVITE without REGISTERing
>
> Please read "domain" instead of "gtstelecom.ro":
> www_authorize("domain",
> "subscriber") and proxy_authorize("domain", "subscriber"), otherwise
> the code fragment will not be correct. I forgot to replace with a generic name.
>
> Victor Stanescu wrote:
>  > I think it is easier to force him to authenticate the INVITE. If he
> is  > able to authenticate the INVITE, why do you care if he is
> registered  > or not?
>  >
>  > if (method=="REGISTER") {
>  >     if(!src_ip=="other") {
>  >         if (!www_authorize("gtstelecom.ro", "subscriber")) {
>  >             www_challenge("domain", "0");
>  >             break;
>  >         };
>  >         save("location");
>  >         log("Replicating REGISTER\n");
>  >         t_replicate("other", "5060");
>  >     } else {
>  >         save("location");
>  >     };
>  >     break;
>  > } else {
>  >     # this is an INVITE
>  >     if (!proxy_authorize("gtstelecom.ro", "subscriber")) {
>  >         proxy_challenge("domain", "1");
>  >         break;
>  >     };
>  >     # route the call
>  >     ...
>  > };
>  >
>  > İlker Aktuna (Koç.net) wrote:
>  >>
>  >> Hi all,
>  >>
>  >> Is it possible to prevent any user calling without registering ?
> What  >> is the best way to do this ?
>  >> I guess I'll have to check if the source URI exists in location table.
>  >> What is the easiest way to do this ?
>  >>
>  >> If there is a more robust way to do it, please suggest...
>  >>
>  >> Thanks,
>  >> ilker
>  >>
>  >>
>
>
>
> <http://387555.sigclick.mailinfo.com/sigclick/07090204/04064D07/070105
> 4D/0364151131.jpg>
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Bu e-posta mesaji kisiye ozel olup, gizli bilgiler iceriyor olabilir. Eger bu e-posta mesaji size yanlislikla ulasmissa,  icerigini hic bir sekilde kullanmayiniz ve ekli dosyalari acmayiniz. Bu durumda lutfen e-posta mesajini kullaniciya hemen geri gonderiniz  ve  tum kopyalarini mesaj kutunuzdan siliniz. Bu e-posta mesaji, hic bir sekilde, herhangi bir amac icin cogaltilamaz, yayinlanamaz ve para karsiligi satilamaz.  Bu e-posta mesaji viruslere karsi anti-virus sistemleri tarafindan taranmistir. Ancak yollayici, bu e-posta mesajinin - virus koruma sistemleri ile kontrol ediliyor olsa bile - virus icermedigini garanti etmez ve meydana gelebilecek zararlardan dogacak hicbir sorumlulugu kabul etmez.
This message is intended solely for the use of the individual or entity to whom it is addressed , and may contain confidential  information. If you are not the intended recipient of this message or you receive this mail in error, you should refrain from making any use of the contents and from opening any attachment. In that case, please notify the sender immediately and return the message to the sender, then, delete and destroy all copies. This e-mail message, can not be copied, published or sold for any reason. This e-mail message has been swept by anti-virus systems for the presence of computer viruses. In doing so, however,  sender  cannot warrant that virus or other forms of data corruption may not be present and do not take any responsibility in any occurrence.
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