> So I would propose to put the whole struct into the netlink messages, This is a terrible idea, since internal changes to this struct would break the userland API/ABI. hwsim seems perhaps less important than most APIs, but there is wmediumd etc. already. > but I think that will break up the communication to e.g. bob > copelands > wmediumd and similar simulations. I would like to have our > Implementation working with mainline kernels and therefore ask how we > could achieve this easily. > > Obviously, we could define another field in the hwsim messages, but > as bob copeland already stated, significantly more information within > the netlink messages could intensify the timing overhead of hwsim. I don't think we have any other choice but add the relevant fields as proper attributes. johannes