This appears to me to be a clear-cut example of prior restraint, if common sense standards of free speech are to be applied to source code.
https://news.ycombinator.com/item?id=10137739
edit please read the background before downvoting, and you'll see what I mean. Also, there is no loss of freedom here. As long as your radio software is separate from the router software, there is no issue at all.