This patch adds symlinks, hardlinks, device nodes, uid/gid, unix
permissions vs servers that support it (ie samba). Most of this is the
work of John Newbigin, I just modified it for 2.5.

There are issues with what samba allows (eg you can't make arbitrary
symlinks) and room for improvements (use the servers value for ino?). But
it doesn't affect "normal" users.