expiration #days in the future, clears the lockdown, sets the lockout (no
free extensions) and sends the text in the box to the user.

FreeBSD doesn't seem to do this by default.

We don't need it any more (and haven't since we used jail-based vnodes!)
and it just creates vulnerabilities by running rpcbind.

Note that we do need an NFS server for elabinelab ops/fs nodes, but rc.mkela
takes care of making sure it is turned on.

* More on issue #54; watch for openstack experiments and try to download
  the new openstack stats file via the fast XMLRPC path. Show this as a
  text blob in a new tab on the status page, still need to graph the data.
  The apt_daemon handles the periodic request for the data (every 10
  minutes), which we store in the apt_instances table.

* Addition for Rob on the admin extend page; Add a "more info" button that
  sends the contents of the text box as an email message requesting more
  info and stores that in the ongoing interaction log. Responses from the
  user are not stored though, might look at that someday.

* Another addition for Rob; on the extensions list page, also show expired,
  locked down experiments. Note the sorting; at the top of the list are
  actual extension request (status='ready') while the bottom of the list
  are status='expired'.

* Add a "graphs" tab to the status page, which shows the same idle stats
  graphs that were added to the admin extend page. Most of this change is
  refactoring the code and sharing it between the two pages.

disabled pending more discussion/debate (see issue #89) about whether it is
a good idea.

node. The caller says what node (via the vname, not the nodeid).

more info.

Things were simple back when all Linux called them "ethN" and there were
very few pseudo-devices to worry about...

Now we find the "active" experimental interfaces from the Emulab-provided
/var/emulab/boot/tmcc/ifconfig info. We use the MACs there along with "findif"
to identify interfaces of interest. N.B.: as it stands, this version of
slothd requires the most recent change to "findif" to accept command line
MAC addresses with ':'s.

Also fixed a couple of bugs while in here. The "netstat" command output
(used to obtain packet counts on both Linux and FreeBSD) has also changed
over the years. At some point, the Linux version (at least on CentOS) removed
the "Met" (metric) column from the output, throwing off the parsing of input
and output packet counts. For FreeBSD, an "Idrops" column was added which
throws off the output packet count. Both are now handled by noting whether
the columns exist when first seeing the header, and adjusting the sscanf
format accordingly. On the Linux side I have only seen this affect CentOS 7.
For FreeBSD, it affects all versions back to at least FreeBSD 8!

PF WARNING: several "pass" statements were used in the making of
this commit.

This turned out to be more involved than I hoped, but it is done.
Works on "ipmi20" and "ilo3". May need a little work for "drac".

Right now this is strictly advisory.  In particular, swap-ins go through
the normal path and are NOT forced to comply with admission control
wrt future reservations; therefore, reservations don't yet come with
any guarantees at all.

update the DB only.

data from the remote cluster and graph it.

profile.

except for the ability to modify their profile or start/join projects.
Show warning to users who are waiting for membership approval, and show a
Nag link to remind the PI. For PIs waiting for a project to be approved
show a message, with a mailto link to remind the Project Approval
Committee.

able to edit their profile.

page.

Also add nag option to support sending reminder email to the PI.
Change MemberShipInfo to return an array of info instead five call by
reference params.

invokes the same named method on the default group (for convenience).