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missing interface when its a Trunk link, these might not exist since
they are hard to auto create.

from the interfaces table (and interface_state). The only place we will
store that is the wires table. When looking up an interface, we were
already loading the wires table, so we can still ask the interface for
its card and port, *if* it is wired up. And if it is not wired up,
asking the interface for anything related to the wire is nonsensical, so
print a backtrace and return an error.

Work in progress.

1. Beef up MakeFake in Interface/Wires and use that from Port library
   instead of existing fake stuff.

2. Add a Create routine for wires, remove all the direct insertions
   scattered around the code.

3. Add some Lookup routines, so we can remove a bunch of direct queries
   to the DB scattered around the code.

4. Add a trivial wrapper Interface::Type, and give it one useful
   function for now, to map generic speed to interface object.

sanity checking on the interfaces and wires tables, creates interfaces
for the switch side of all wires, as well as any other missing
interfaces for wires. Eventually the primary key for the wires table
will be node_id1,iface1,node_id2,iface2, but we are ways off from that.

Not that wires between switches that do not have an existing for at
least one side, are not handled yet since there is not enough
information to generate the two missing interfaces. Have to think about
that, but not a problem for now.

1. We now allow lans to be implemented by a path. We did not allow this
   before, cause some of the sanity checking code was a pain to
   implement for lans. Well, no more sanity checking, the user is
   responsible for doing things correctly (after all, they are doing
   experiments with their own switches!).

2. We now allow topologies with more then one switch to be wired
   together. The wires between switches are marked as "trunk" wires,
   which informs the configuration generation code in libosload_switch
   to create the trunks and do the little tagged/untagged magic that is
   required on procurve switches. The same information is used to mark
   the the logical wires between switches as trunks.

   Aside: this stuff needs some work; we have spanning tree on by
   default, which causes the trunks to not work correctly. When I turn
   that off, things start working. So need some help from others who now
   about spanning tree stuff.

3. Serious kludging in the Interface and Port libraries related to
   choice of primary keys in the wires table. In order to insert a
   logical wire (or interface) that represents a connection setup by the
   apcon, we have to overload the primary key since the node_id1 side of
   the logical wires is the same as the physical wire to the apcon. We
   have to have overload the node_id2 side too, but that is really just
   a problem when wiring two switches together. Anyway, the kludge just
   maps card1 to a different id, and the Port library unmaps it. It will
   do for now, but really need logical wires to be done better then
   this.

for the most part that is all they are going to have. We still ignore them
on physical nodes, since they refer to MLE interfaces.

interface_type() should actually be called type().
Inadequate quoting in a SQL query.
And assigning through a reference needs an extra '$'.

This commit is intended to makes the license status of Emulab and
ProtoGENI source files more clear.  It replaces license symbols like
"EMULAB-COPYRIGHT" and "GENIPUBLIC-COPYRIGHT" with {{{ }}}-delimited
blocks that contain actual license statements.

This change was driven by the fact that today, most people acquire and
track Emulab and ProtoGENI sources via git.

Before the Emulab source code was kept in git, the Flux Research Group
at the University of Utah would roll distributions by making tar
files.  As part of that process, the Flux Group would replace the
license symbols in the source files with actual license statements.

When the Flux Group moved to git, people outside of the group started
to see the source files with the "unexpanded" symbols.  This meant
that people acquired source files without actual license statements in
them.  All the relevant files had Utah *copyright* statements in them,
but without the expanded *license* state...

missing.

devices with network interfaces. Emulab's spp and bbg nodes are
examples, but I did all that by hand inserting sql. An spp node is a
shared node with some interfaces. Users can allocate one or more of
those interfaces and establish vlans to the interfaces. The node is a
"fakenode" in "shared" mode, and everything else falls out. The mapper
assigns virtual nodes until all of the interfaces are allocated,
snmpit does its work on the interfaces, and the user then does the
rest.

Anyway, to added a special device:

  boss> wap addspecialdevice -s -t goober goober1

The -t argument is the name of the node type, created if it does not
exists. The last argument is the name of the fakenode to create in the
DB. The -s option says the special device is shared. Without -s, the
device is allocated exclusively.

Then to add interfaces to the device:

  boss> wap addspecialiface -b 1Gb -s cisco4,100,100 goober1 eth0

The -b option is the speed (either 100Mb or 1Gb). The -s option is the
switch side of the interface (switchname,card,port). The last two
arguments are the nodename and iface name for the interfaces table.

After the interface and wires table entry are added to the DB, snmpit
is called to put the switch port into tagged mode (if the node is
shared). To skip the snmpit step, add the -t option.

The basic operational model is as follows.

* We turn the nodes on.

* Since there is nothing on the disks, they will fall through to
  booting from the PXE and will boot the newnode MFS. They all check
  in.

* We run Jon's script that adds the nodes. They are now in hwdown,
  still nothing on the disks.

* We run my script, which is driven from a datafile we are supposed to
  get from HP. This script has the ilomac, ilopswd, control mac. I
  will add another column initially; the permanent IP to assign to the
  ilo. This script does:

 + Reads the datafile to get all the stuff.
 + Reads the dhcpd.leases file to find the temporary IPs of the ilos.
 + Finds the corresponding nodes in the DB.
 + Sends over an XML file that does the following:
     - Add the elabman user.
     - Add local root's dsa pub key to the new elabman user.
     - Add Utah's root dsa key to the Administrator user
     - Sets the power on mode to auto (so that the node turns on!).
     - Sets the idle timeout to 2 hours.
 + Sets the bootorder so that PXE is first. This has to be done
   with ssh and some expect stuff I culled from power_ilo. Sigh.
 + Calls out to another script that adds the ilo interface to the
   DB (this is the management_iface script I did last month).
 + Sends another XML file that tells the ilo to reset itself, so that
   it picks up its permanent IP address.

* Now we can free the nodes from hwdown.

node.

part of an upcoming change to make Trunk links explicit in the DB.

Basic link lookup and interface lookup is complete. Need to finish bandwidth
calculations, link types, wireless links, and interface printing.

Add "Unused" to type enum in the wires table.
Change a few critical wires/interfaces queries to avoid logical=1.

attempts by protogeni code.

node info. Not sure this will survive. Add routines to update as well.
Also add Update and Refresh routines.

Export VMAC for virtual interfaces as for cooked mode.