Where are the plugins?

[Jeffrey Yasskin <jyasskin@mail.utexas.edu>]

I've been looking at the reiser4 source code for a few days, and I can't 
find any non-essential plugins.

For example: You say on the website that you've written several security 
plugins for DARPA, but the only files in fs/reiser4/plugin/security/ are 
acl.c and perm.{c,h}, and acl.c is empty.
On the website you also suggest writing a plugin so /etc/passwd can be 
split in to individually-permissioned sub-files. Is that plugin written 
yet, or is it just an idea?

I'd like to write a few plugins to move mp3s' and oggs' meta-data into 
the filesystem, and it'd be a lot easier if there were an example to 
copy from. (Would it be better just to move that kind of plugin into a 
userspace callback?)

Thanks,
Jeffrey