conn->user in VFS module

[Eric Horst]

I'm working on a VFS module and need the username of the user that
originally connected (same as shown in the 'connect to service blah
initially as user myuserid' message in log). A connection_struct called
'conn' is passed to vfs functions and it would seem that the user should
be in conn->user. Yet I'm finding that conn->user is null. Why would it be
null and what's a reliable way to know the connecting user in a vfs
module?

--Eric