I am facing a problem, whiting one transport protocol. It is sitting on top of IPv4 atm and I am trying to make it as a module.
I am receiving sk_buff from ip layer and there is no socket open of receiving port, so I need to send a reply with something like "no connection". For that it seems that I have to open a new "temporal" socket and pass it to the output routine.
So, what are the alternatives for
socket(); (sock_create_kern ?)
I am trying to use sock_creat_kern() but then, what routine should I use to clean all the memory and things when I am closing the socket, so that module would become removable and there will be no memory leak.
I am puzzeled, since my implementation of proto_init() and proto_close() work fine for the user level sockets.