Custom CSRF

[eluser]Ali Fattahi[/eluser]
Hello Dear Friends
i've a problem in CSRF .
I've enabled csrf_protection in my config file and it working good in my forms , but i have some url's ( Like Banks callback url ) wich that bank send me some information of an invoice or a payment in callback url and csrf protection does not allow to get information from that urls .
how can i solve this problem or make an exption for some urls ?

Best Regards
Ali