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configs

generation code

subnodes is dealing with the hosting node, and the "fakelink" that
we have to insert until assign is taught how to deal with hosting
nodes. The fakelink causes assign to grab both nodes together.

Also: * Minor cleanup.
      * Change control_net to control_iface.
      * Set the routertype to "manual" for jail hosts, and "none" for
        delay nodes. This is done in InitPnode.
      * Get rid of more shark code.

choice of idleswap times, it was sending the email before the expt had
even been idle for 5 minutes. So add a check to make sure that they're
idle at least idle_threshold minutes before we send warnings. Meaning, if
the swap time is 30 minutes, and the warning time is 30 minutes, you won't
get a warning at all, instead of warnings every time you've been idle for
1 minute (ie it has been a minute since the last node reported activity).

to return the name/type of subnodes. Added a subconfig command that
returns a type-specific configuration that the client will know what
to do with. At the moment, just ixp is known as a subnode. The subnode
support mostly works off the vnode stuff since otherwise it would be
lot of code duplication. Eventually subnode should replace vnode, and
vnode will become a type of subnode (like ixp).

Also changed usage of control_net to control_iface, and made use of
the "role" slot in ifconfig to determine what interfaces to return
info for.

Needs to be a distinct type in the client scripts since its control
interface is not the same as a true pc850.

interfaces table to determine which interfaces to clear.

When inserting new interface entries, set the role appropriately,
based on control_iface setting in the node_types table.

are couple left in the newnodes code that Rob will need to help me
with.

is legal (and common!) in node vnames.

and updating the status of existing ones now actually works.  It
performs a named update after new nodes have been added.  Node adding
has been reordered to avoid race conditions with people requesting
Plab nodes while they are being added to the DB.  Vnode status updates
are now done in one SQL swoop, instead of one at a time.  Lots of
little tweaks.

so the freeing first waits for the exec to finish in the other prong
of the fork.

appropriate.  The node status information now reports SSHD port
separately; doesn't report IP port ranges for Plab nodes; does report
RPM's for virtual nodes; only reports BIOS version if it's specified
in the DB; and, if a control net IP isn't found for a node (the case
with virtnodes), it reports the control net IP of the physical node.

modify newwanode to set that for the new wa nodes (control interface).

       control_iface join with node_types, since new nodes have more
       than just expt and ctrl interfaces (ixps). The control_net slot
       is bogus anyway. Note that 'jail' is a placeholder for later.
       A 'fake' interface is not to be confused with veth interfaces; it
       is a psuedo interface like that found between an ixp and the host.

       alter table interfaces add \
		role enum('ctrl', 'expt', 'jail', 'fake', 'other') \
		NOT NULL default 'other' after iface;

install no longer depend on them.

main zone file (which were also being inserted with bad syntax).