ip assigning module

Good afternoon. We have developed a new module assigning IP-addresses for our users. It uses a mysql database as IP source. We cannot use default rlm_sqlippool module, because of some additional logic. Major differences between our module and rlm_sqlippool are: * available IP address space is divided into IP ranges * each user belongs to some group (data plan) * on incoming radius auth packet the module searches data plan (by username) * the module takes some IP from IP range attached to this data plan. More detailed flow diagram is attached. We are ready to adopt this module to your requirements and support it in a future. Is it possible to add it to freeradius project?