Hi, It certainly should be doable, though I don't know what the Wii platform is like. Take a look at common-session.c for the main select() loop - if the Wii doesn't have posix sockets then you'll need to replace that and other calls to read()/write() and setting up non-blocking sockets. Dropbear doesn't use threads so you'll be OK there. You will probably need to generate your own entropy for the PRNG - moving a controller around for several seconds and hashing the output is a popular way.
For a client you'll also need a terminal emulator. Writing one from scratch would be non-trivial I think, though some may already exist for the Wii? Otherwise I guess you could port PuTTY or something similar. (In which case you might want to look at its SSH code instead). Have a look at PSPSSH, a port to the PSP that might have had to solve similar problems. Cheers, Matt On Sat, Mar 14, 2009 at 02:47:49PM -0600, Jonathan Glines wrote: > Hello everyone. I'm a freshmen in college and need to write something > security-related for a class. After discovering how easy it is to > write homebrew for the Nintendo Wii, I set my sights on writing > something for that platform. Since SSH pretty much rules my life, I > decided to look for relatively simple SSH client I might be able to > port, which brought me to Dropbear. > > Now, I know the Wii isn't exactly POSIX compliant; I don't think > there's much of an operating system to speak of. Any port of Dropbear > will probably end up being more of a fork then a port. However, there > is an FTP server and a few other networked apps written for the Wii, > so I'm sure an SSH client is possible. But is a Dropbear port > feasible? > > I'm worried about the POSIX libraries that I won't be able to use, > such as network, time, threads, and entropy. Plus, I'm not well versed > in this stuff to begin with. But this is stuff I would really like to > learn, especially the networking. What parts of the code do you think > I will have to rewrite? > > Anyway, I just started this yesterday, and I'm not sure if I can do > it. Any tips, criticism, or words of encouragement would be greatly > appreciated. I'm prepared for blood and sweat if I'm going to get this > to work. ;) > > Regards, > Jonathan >
