ptopgen.in 89.5 KB
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#!/usr/bin/perl -w
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#
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# Copyright (c) 2000-2013 University of Utah and the Flux Group.
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# 
# {{{EMULAB-LICENSE
# 
# This file is part of the Emulab network testbed software.
# 
# This file is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
# 
# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public
# License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this file.  If not, see <http://www.gnu.org/licenses/>.
# 
# }}}
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#

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use English;
use Getopt::Std;
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use Math::BigInt;
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use List::Util 'shuffle';
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use lib "@prefix@/lib";
use libdb qw(TBGetSiteVar);
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use libadminctrl;
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use libptop;
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use EmulabFeatures;
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my @SAVEARGV = @ARGV;

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my $top = libptop->Create();

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my $PGENISUPPORT = @PROTOGENI_SUPPORT@;

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$NO_GENI = "0";
$V_0_1 = "0.1";
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$V_0_2 = "0.2";
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$V_2 = "2";
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$V_3 = "3";
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$emulabns = "http://www.protogeni.net/resources/rspec/ext/emulab/1";
# XXX: This needs to be changed
$emulaburl = "http://www.protogeni.net/resources/rspec/ext/emulab/1/ptop_extension.xsd";
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$sharedns = "http://www.geni.net/resources/rspec/ext/shared-vlan/1";
$sharedurl = "http://www.geni.net/resources/rspec/ext/shared-vlan/1/ad.xsd";
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$stitchns = "http://hpn.east.isi.edu/rspec/ext/stitch/0.1/";
$stitchurl = "http://hpn.east.isi.edu/rspec/ext/stitch/0.1/stitch-schema.xsd";
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$opns = "http://www.geni.net/resources/rspec/ext/opstate/1";
$opurl = "http://www.geni.net/resources/rspec/ext/opstate/1/ad.xsd";
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sub usage()
{
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    print("Usage: ptopgen [-v] [-s switch] [-p pid [-e eid]] [-m factor] " .
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	  "[-n c/e] [-x] [-g (0.1 | 2)] [-c component-name]".
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	  "[-l type-limit-file] [-z]\n" .
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	  "       -p include nodes the project has permission to use\n".
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	  "       -e include given experiments resources\n" .
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	  "          in the ptopfile (as if they were free)\n" .
	  "       -v Include stuff for topologies with virtual nodes\n".
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	  "       -r Include stuff for topologies with widearea nodes\n".
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#	  "       -s Include stuff for topologies with simulated nodes\n".
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	  "       -h Include stuff for topologies with shared nodes\n".
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	  "       -a Include even reserved nodes\n".
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	  "       -m Override multiplex_factor\n".
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	  "       -u Prune unused interfaces of allocated nodes (-e)\n".
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	  "       -c Delay capacity override\n".
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	  "       -n Add in modelnet core and edge node features\n".
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	  "       -x Output into the new xml ptop format\n".
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	  "       -g version With -x, geni version. Must be '0', '0.1' or '2'\n".
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	  "       -l specifies the location of the type limit file\n" .
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          "       -1 Print an rspec containing only the node component-name\n" .
	  "       -z Randomize node output order\n" .
	  "       -Z Force old ptopgen\n");
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        exit(-1);
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}
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my $optlist = "s:e:m:vp:rSan:c:uxg:h1:l:zZCb";
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my $mfactor;
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my $virtstuff = 0;
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my $widearea  = 0;
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my $simstuff  = 0;
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my $allnodes  = 0;
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my $mnetcores = 0;
my $mnetedges = 0;
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my $prune     = 0;
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my $do_xml    = 0;
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my $genimode  = $NO_GENI;
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my $useshared = 0;
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my $useblockstore = 0;
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my $component_name = undef;
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my $randomize = 0;
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my $usecontrol= 0;
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my $OURDOMAIN = "@OURDOMAIN@";
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my $MAINSITE  = @TBMAINSITE@;
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my $cmuuid = TBGetSiteVar('protogeni/cm_uuid');
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my $cmurn = "";
if ($PGENISUPPORT) {
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    require GeniHRN;
    $cmurn = &GeniHRN::Generate($OURDOMAIN, "authority", "cm");
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}
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$opstate = <<'OPSTATE';
<rspec_opstate xmlns="http://www.geni.net/resources/rspec/ext/opstate/1"
  aggregate_manager_id="CMURN"
  start="geni_notready">
  <sliver_type name="raw-pc" />
  <sliver_type name="emulab-openvz" />
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  <sliver_type name="emulab-xen" />
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  <state name="geni_notready">
    <action name="geni_start" next="geni_configuring">
      <description>Boot the node</description>
    </action>
    <description>Raw PCs and VMs begin powered down or inactive. They
    must be explicitly booted before use.</description>
  </state>
  <state name="geni_configuring">
    <wait type="geni_success" next="geni_ready" />
    <wait type="geni_failure" next="geni_failed" />
    <description>Booting takes a significant amount of time, so it
    happens asynchronously while the node is in this
    state.</description>
  </state>
  <state name="geni_ready">
    <action name="geni_restart" next="geni_configuring">
      <description>Reboot the node</description>
    </action>
    <action name="geni_stop" next="geni_stopping">
      <description>Power down or stop the node.</description>
    </action>
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    <action name="geni_update_users" next="geni_updating_users">
      <description>Update user SSH keys.</description>
    </action>
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    <description>The node is up and ready to use.</description>
  </state>
  <state name="geni_stopping">
    <wait type="geni_success" next="geni_notready" />
    <wait type="geni_failure" next="geni_failed" />
    <description>The node is being stopped or rebooted.</description>
  </state>
  <state name="geni_failed">
    <description>The node has failed and requires administrator
    intervention before it can be used. Please contact
    the administrator for assistance.</description>
  </state>
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  <state name="geni_updating_users">
    <action name="geni_update_users_cancel" next="geni_ready">
      <description>Cancel an update users action</description>
    </action>
    <wait type="geni_success" next="geni_ready" />
    <description>Updating users can take a fair amount of time, so it
    happens asynchronously in this state.</description>
  </state>
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</rspec_opstate>
OPSTATE

$opstate =~ s/CMURN/$cmurn/g;


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my $default_long = undef;
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TBGetSiteVar('general/default_longitude', \$default_long);
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my $default_lat = undef;
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TBGetSiteVar('general/default_latitude', \$default_lat);
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my $default_country = undef;
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TBGetSiteVar('general/default_country', \$default_country);
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my $delaycap_override;
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#
# Turn off line buffering on output
#
$| = 1;
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# Settings - Change these to your particular network.

#
# Also bogus. The interfaces table does not hold entries for the switch
# side of each link. It will have to at some point, when we have something
# other than 100Mbs ports (say, gbit ports).
#
# Speed in in Kbs!
#
my $default_switchport_speed    = 100000;

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#
# Yet more bogosity - we hardcode this weight, which is given to wide-area
# (primarily plab) nodes to prefer spreading across sites
#
my $site_weight = 0.99;

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######################################################################

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my $TBROOT = "@prefix@";
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use lib '@prefix@/lib';
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require exitonwarn;
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use libdb;
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use libtblog;
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use Experiment;
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use Node;
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use NodeType;
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use Lan;
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use BlockstoreType;
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tblog_stop_capture('stdout');
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my $TRACK_INTERSWITCH_BANDWIDTH = "@TRACK_INTERSWITCH_BANDWIDTH@";

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my %switches	  = ();
my %permissions   = ();
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my %typemap       = ();
my %auxtypemap    = ();
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my %areamap       = ();
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my %globalcounts  = ();
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my %interfacestate= ();
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my %vinterfaces   = ();
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my %rusagedata    = ();
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my $DEADPID = NODEDEAD_PID();
my $DEADEID = NODEDEAD_EID();

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my $pid;
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my $exempt_eid;
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my $switchtouse;
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my $experiment;
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my $typelimitfile = "";

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sub fatal($);

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#
# Parse command arguments. Once we return from getopts, all that should be
# left are the required arguments.
#
%options = ();
if (! getopts($optlist, \%options)) {
    usage();
}
if (@ARGV) {
    usage();
}
if (defined($options{"s"})) {
    $switchtouse = $options{"s"};
}
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if (defined($options{"m"})) {
    $mfactor = $options{"m"};
}
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if (defined($options{"h"})) {
    $useshared = 1;
}
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if (defined($options{"b"})) {
    $useblockstore = 1;
}
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if (defined($options{"v"})) {
    $virtstuff = 1;
}
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if (defined($options{"r"})) {
    $widearea = 1;
}
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if (defined($options{"S"})) {
    $simstuff = 1;
}
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if (defined($options{"p"})) {
    $pid = $options{"p"};
}
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if (defined($options{"a"})) {
    $allnodes = 1;
}
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if (defined($options{"u"})) {
    $prune = 1;
}
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if (defined($options{"c"})) {
    $delaycap_override = $options{"c"};
}
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if (defined($options{"C"})) {
    $usecontrol = 1;
}
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if (defined($options{"n"})) {
    if ($options{"n"} =~ /(\d*),(\d*)/) {
	$mnetcores = $1;
	$mnetedges = $2;
    }
    else {
	usage();
    }
}
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if (defined($options{"e"})) {
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    $exempt_eid = $options{"e"};
    usage()
	if (!defined($pid));
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    $experiment = Experiment->Lookup($pid, $exempt_eid);
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    die("Could not look up experiment $pid,$exempt_eid\n")
	if (!defined($experiment));
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}
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if (defined($options{"x"})) {
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    if (defined($options{"g"}) && $PGENISUPPORT) {
	$useshared = 1;
	$virtstuff = 1;
	$genimode = $options{"g"};
    }
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    $do_xml = 1;
}
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if (defined($options{"l"})) {
    $typelimitfile = $options{"l"};
}
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if (defined($options{"1"})) {
    $component_name = $options{"1"};
}
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if (defined($options{"z"})) {
    $randomize = 1;
}
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usage()
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    if ($prune && !defined($exempt_eid)
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	|| ($genimode ne $NO_GENI
	    && $genimode ne $V_0_1
	    && $genimode ne $V_0_2
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	    && $genimode ne $V_2
	    && $genimode ne $V_3));
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if (defined($pid) && ! defined($options{"Z"})) {
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    my $group = Group->Lookup($pid, $pid);
    if (defined($group)) {
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	$EmulabFeatures::verbose = 0;
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	my $newptopgen = EmulabFeatures->FeatureEnabled("NewPtopgen", undef,
							$group, undef);
	if ($newptopgen) {
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	    my $newpath = "$TBROOT/libexec/ptopgen_new";
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	    print STDERR "Invoking new ptopgen from $newpath\n"
		if (!$genimode);
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	    exec $newpath, @SAVEARGV;
	    die("*** $0:\n".
		"    Could not exec $newpath: $!");
	}
    }
}

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$fake_inet_switch = "internet";
$fake_inet_iface = "(null)";
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$fake_air_switch = "airswitch";
$fake_air_iface = "(null)";
if ($genimode ne $NO_GENI) {
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    $fake_inet_iface = "border";
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    $fake_air_iface = "air";
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}

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my %nodetointerface;
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my %interfaceroles = ();
my %interfacetypes = ();
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my %interfaceips = ();
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# Read interfaces
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my $result =
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    DBQueryFatal("SELECT node_id,card,port,iface,interface_type,role,IP" .
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		 " from interfaces where logical=0 " .
		 ($genimode ne $NO_GENI ? "and role!='gw'" : ""));
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while (($node,$card,$port,$iface,$type,$role,$ip) = $result->fetchrow_array) {
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    push @{ $nodetointerface{"$node"} }, $iface;
    $interfacemap{"$node:$card:$port"} = $iface;
    if ((defined $type) && ($type ne "")) {
	$interfacetypes{"$node:$card:$port"} = $type;
    }
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    if ((defined $role) && ($role ne "")) {
	$interfaceroles{"$node:$iface"} = $role;
    }
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    if ((defined $ip) && ($ip ne "")) {
	$interfaceips{"$node:$iface"} = $ip;
    }
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}

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my %used_vlans = ();

$result =
    DBQueryFatal("SELECT tag from reserved_vlantags");
while (($vlantag) = $result->fetchrow_array) {
    $used_vlans{$vlantag} = 1;
}

sub AvailableVlans($)
{
    my ($vlanString) = @_;
    my $result = '';
    my $comma = '';
    my @ranges = split(',', $vlanString);
    foreach my $range (@ranges) {
	my @bounds = split('-', $range);
	my $lower = $bounds[0];
	my $upper = $lower;
	if (scalar(@bounds) > 1) {
	    $upper = $bounds[1];
	}
	my $least = $lower;
	my $greatest = $lower;
	my $inRange = 0;
	my $i = $lower;
	for (; $i <= $upper; ++$i) {
	    if ($inRange && (exists($used_vlans{$i}) || $i == $upper)) {
		if ($i == $upper && ! exists($used_vlans{$i})) {
		    $greatest = $i;
		}
		if ($least != $greatest) {
		    $result .= $comma . $least . '-' . $greatest;
		} else {
		    $result .= $comma . $least;
		}
		$comma = ',';
		$inRange = 0;
	    }
	    elsif (! $inRange && ! exists($used_vlans{$i})) {
		$least = $i;
		$inRange = 1;
	    }
	    $greatest = $i;
	}
    }
    return $result;
}

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my %external_nodes;
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my %external_managers;
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my %external_ifaces;
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my %external_links;
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my %contact_nodes;
my %contact_ifaces;
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my %stitch_points;
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$result = DBQueryFatal("select w.node_id1, w.card1, w.port1, i1.iface, ".
		       "w.node_id2, w.card2, w.port2, i2.iface, ".
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		       "w.external_interface, w.external_wire, ".
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		       "e.node_id, e.vlans, ".
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		       "e.external_manager, e.network_id, e.external_interface, e.external_wire, e.external_subport ".
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		       "from wires as w ".
		       "left join external_networks as e ".
		       "on w.node_id1=e.node_id or w.node_id2=e.node_id ".
		       "left join interfaces as i1 on w.node_id1=i1.node_id and w.card1=i1.card and w.port1=i1.port ".
		       "left join interfaces as i2 on w.node_id2=i2.node_id and w.card2=i2.card and w.port2=i2.port ".
		       "where e.node_id is not null");
while (my ($cnode, $ccard, $cport, $ciface, $enode, $ecard, $eport, $eiface,
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	   $external_iface_urn, $external_link_urn, $external, $vlanList,
	   $external_manager_urn,
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	   $external_network_id, $external_network_iface_urn,
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       $external_network_link_urn, $subport) = $result->fetchrow_array) {
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    if ($external eq $cnode) {
	my $temp;
	$temp = $cnode; $cnode = $enode; $enode = $temp;
	$temp = $ccard; $ccard = $ecard; $ecard = $temp;
	$temp = $cport; $cport = $eport; $eport = $temp;
	$temp = $ciface; $ciface = $eiface; $eiface = $temp;
    }
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    $stitch_points{"$cnode:$enode"} = 1;
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    $enode = $external_network_id;
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    if (! defined($eiface)) {
	$eiface = "$ecard.$eport";
    }
    if (! defined($ciface)) {
	$ciface = "$ccard.$cport";
    }
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    my $ciface_urn;
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    if (defined($subport)) {
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	$ciface_urn = $subport;
    } else {
	$ciface_urn = GeniHRN::GenerateInterface($OURDOMAIN,
						 $cnode,
						 $ciface);
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    }
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    if (! defined($external_iface_urn)) {
	$external_iface_urn = $external_network_iface_urn;
    }
    if (! defined($external_link_urn)) {
	$external_link_urn = $external_network_link_urn;
    }
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    if ($allnodes) {
	$external_nodes{$enode} = $vlanList;
    } else {
	$external_nodes{$enode} = AvailableVlans($vlanList);
    }
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    $external_managers{"$cnode:$enode"} = $external_manager_urn;
    $external_ifaces{"$cnode:$enode"} = $external_iface_urn;
    $external_links{"$cnode:$enode"} = $external_link_urn;
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    if (exists($contact_nodes{$cnode})) {
	push(@{ $contact_nodes{$cnode} }, $enode);
    } else {
	$contact_nodes{$cnode} = [$enode];
    }
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    $contact_ifaces{"$cnode:$enode"} = $ciface_urn;
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}

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print_header();

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my %nodetouuid;
my %nodetoavailable;

$result = DBQueryFatal("SELECT n.node_id, n.eventstate, n.role, n.uuid, " .
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		       "nt.isremotenode, " .
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		       "dedicated_wa_types.attrvalue, b.erole, " .
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		       "n.reserved_pid, b.eid " .
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		       "from nodes as n " .
		       "left join reserved as b on n.node_id=b.node_id " .
		       "left join node_types as nt on nt.type=n.type " .
		       "left outer join " .
		       "  (select type, attrvalue " .
		       "   from node_type_attributes " .
		       "   where attrkey='dedicated_widearea' " .
		       "   group by type) as dedicated_wa_types " .
		       "  on nt.type=dedicated_wa_types.type " .
		       "where nt.isvirtnode = 0 or nt.isvirtnode is null;");
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while (($node,$eventstate, $role, $uuid, $isremotenode,
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	$wa_attrvalue, $erole,
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	$reserved_pid, $reserved_eid) = $result->fetchrow_array) {
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    if (defined($uuid) && $uuid ne "")
    {
	$nodetouuid{$node} = $uuid;
    }
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    my $islocal = $role eq 'testnode'
	&& ((! defined($isremotenode) || $isremotenode == 0)
	    || (defined($wa_attrvalue) && $wa_attrvalue == 1));
    my $isup = defined($eventstate)
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	&& ($eventstate eq TBDB_NODESTATE_ISUP
	    || $eventstate eq TBDB_NODESTATE_PXEWAIT
	    || $eventstate eq TBDB_NODESTATE_POWEROFF
	    || $eventstate eq TBDB_NODESTATE_ALWAYSUP);
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    my $isshared = (defined($erole)
		    && $erole eq "sharedhost"
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		    && $useshared
		    && $isup);
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    my $isblockstore = (defined($erole)
			&& $erole eq "storagehost"
			&& $useblockstore
			&& $isup);
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    my $isreserved = (defined($reserved_eid)
		      || (defined($reserved_pid)
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			  && (! defined($pid) || $pid ne $reserved_pid)));
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    my $isfree = (!$islocal
		  || (! $isreserved && $isup)
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		  || $isshared || $isblockstore);
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    $nodetoavailable{$node} = $isfree;
}

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# Read class/type maps
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$result =
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    DBQueryFatal("select class,type,isvirtnode from node_types");

while (my ($class,$type,$isvirt) = $result->fetchrow_array) {
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    $map = {};
    $map->{'CLASS'}    = $class;
    $map->{'ISVIRT'}   = $isvirt;
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    my $typeinfo       = NodeType->Lookup($type);
    $map->{'DELAYCAP'} = $typeinfo->delay_capacity();
    $map->{'VIRTCAP'}  = $typeinfo->virtnode_capacity();
    $map->{'SIMCAP'}   = $typeinfo->simnode_capacity();
    $map->{'SPEED'}    = $typeinfo->frequency();
    $map->{'RAM'}      = $typeinfo->memory();
    $map->{'OSID'}     = $typeinfo->default_osid();
    $map->{'IMAGEABLE'}= $typeinfo->imageable();
    $map->{'TRIVSPEED'}= $typeinfo->trivlink_maxspeed();
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    $map->{'SHARED'}   = $typeinfo->shared();
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    $map->{'TYPEINFO'} = $typeinfo;
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    $map->{'FEATURES'} = [];
    $map->{'AUXTYPES'} = {};
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    $map->{'OSLIST'} = [];
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    $typemap{$type} = $map;
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    # Default is permission to use all types,classes. 
    $permissions{$class} = 1;
    $permissions{$type}  = 1;
}

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# Figure out which nodes will use a USB dongle to boot. As a proxy, we
# look for the pxe_boot_path pointing to the tpm version of grub.
our %node_usb;

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$result = DBQueryFatal("select node_id from node_attributes ".
		       "where attrkey='pxe_boot_path' and ".
		       "      attrvalue='/tftpboot/pxeboot_tpm'");
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while (($node) = $result->fetchrow_array) {
    $node_usb{$node} = 1;
}

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#
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# Physical RAM overrides.
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#
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my %node_ram;

$result = DBQueryFatal("select node_id,attrvalue from node_attributes ".
		       "where attrkey='physical_ram'");
while (my ($nodeid,$ram) = $result->fetchrow_array) {
    $node_ram{$nodeid} = $ram;
}

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# Read node_startloc
$result = DBQueryFatal("select node_id,building from node_startloc");
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while (($node,$building) = $result->fetchrow_array) {
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    # TODO: This screws up the meaning of the @features list. Now it
    # is not just a list of feature strings, but a list of strings
    # which might themselves be space-delimited lists of feature
    # strings. Fix this.
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    $areamap{$node} .= " area-$building:0";
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}

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#
# Read the features table for each type.
# 
$result = DBQueryFatal("select type, feature, weight from node_type_features");
while (my ($type, $feature, $weight) = $result->fetchrow()) {
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    push(@{$typemap{$type}->{'FEATURES'}}, "$feature:$weight");
}

#
# Read the auxtypes for each type.
# 
$result = DBQueryFatal("select auxtype,type from node_types_auxtypes");
while (my ($auxtype,$type) = $result->fetchrow()) {
    $typemap{$type}->{'AUXTYPES'}->{$auxtype} = 1;
    $auxtypemap{$auxtype} = $type;
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}

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#
# Read the features table for each individual node
#
$result = DBQueryFatal("select node_id, feature, weight from node_features");
while (my ($node_id, $feature, $weight) = $result->fetchrow()) {
    if (! defined($features{$node_id})) {
	$features{$node_id} = ["$feature:$weight"];
	next;
    } else {
	push @{$features{$node_id}}, "$feature:$weight";
    }
}
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#
# Read in the node_auxtypes table for each node.
#
$result = DBQueryFatal("select node_id, type, count from node_auxtypes");
while (my ($node_id, $type, $count) = $result->fetchrow()) {
    if (! defined($auxtypes{$node_id})) {
	$auxtypes{$node_id} = ["$type:$count"];
	next;
    }
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    push @{$auxtypes{$node_id}}, "$type:$count";
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}
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#
# Read the permission table if given a pid. If there is an entry in
# the table for a type/class, then permission is granted only if there
# is a record with the pid. If not, remove the permission granted above.
# 
if (defined($pid)) {
    $result =
	DBQueryFatal("select type from nodetypeXpid_permissions");
    
    while (my ($type) = $result->fetchrow_array) {
	$permissions{$type} = 0;
    }
    
    $result =
	DBQueryFatal("select type from nodetypeXpid_permissions ".
		     "where pid='$pid'");
    
    while (my ($type) = $result->fetchrow_array) {
	$permissions{$type} = 1;
    }
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}

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#
# Read the table of which image types are supported on which hardware - we
# limit this to global images and ones that match the PID (if given) We do this
# limiting for two reasons:
# 1) To avoid an explosion in the number of features for nodes
# 2) To avoid information leaks, allowing projects to see each other's images
# 
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my $osidquery = "select distinct o.osid, oi.type, o.osname, o.pid, o.OS, o.version, o.description,o.protogeni_export, o.osfeatures from os_info as o " .
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	"left join osidtoimageid as oi on o.osid = oi.osid " .
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        "left join images as i on oi.imageid = i.imageid ";
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if ($pid) {
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    $osidquery .= "left join image_permissions as p1 on p1.imageid=i.imageid and p1.permission_type='group' ".
	"left join groups as g on p1.permission_idx=g.gid_idx ";
}
$osidquery .= "where i.global = 1 ";
if ($pid) {
    $osidquery .= " or i.pid='$pid' ".
	" or (g.pid is not null and g.pid='$pid')";
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}

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my $defaultosidquery = 'select distinct o.osid, t.type, o.osname, o.pid, o.OS, o.version, o.description, o.protogeni_export, o.osfeatures '.
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    'from os_info as o left join node_type_attributes as t '.
    'on (o.osid=t.attrvalue) where t.attrkey="default_osid"';

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#
# For subOS support (i.e., vnode OSes running atop vhost OSes), we have to
# check both the subosid and all the parent_osid it can run on.
#
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my $subosidquery = "select distinct o.osid,o.parent_osid from os_submap as o " .
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	"left join osidtoimageid as oi1 on o.osid = oi1.osid " .
	"left join osidtoimageid as oi2 on o.parent_osid = oi2.osid " .
	"left join images as i1 on oi1.imageid = i1.imageid ".
	"left join images as i2 on oi2.imageid = i2.imageid ".
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	"where (i1.imageid is null or i1.global = 1";
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if ($pid) {
    $subosidquery .= " or i1.pid='$pid'";
}
$subosidquery .= ") and (i2.global = 1";
if ($pid) {
    $subosidquery .= " or i2.pid='$pid'";
}
$subosidquery .= ")";

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our %node_type_osids;
our %osid_node_types;
our %osid_subosids;
our %osid_name;
our %osid_pid;
our %osid_os;
our %osid_version;
our %osid_description;
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our %osid_avoid_usb;
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our %node_countries;
our %node_latitudes;
our %node_longitudes;

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our $openvzid;

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$result = DBQueryFatal($osidquery);
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processOs($result);

$result = DBQueryFatal($defaultosidquery);
processOs($result);

sub processOs
{
    my $result = shift(@_);
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    while (my ($osid,$type,$osname,$ospid,$osos, $osversion,
	       $osdescription,$geni,$osfeatures) = $result->fetchrow()) {
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	if ($osname eq "OPENVZ-STD") {
	    $openvzid = $osid;
	}
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	if ($typemap{$type}) {
	    my $default = $typemap{$type}->{'OSID'};
	    if ($geni eq 1 ||
		(defined($default) && $default eq $osid)) {
		push(@{ $typemap{$type}->{'OSLIST'} }, $osid);
		$osid_name{$osid} = $osname;
		$osid_pid{$osid} = $ospid;
		$osid_os{$osid} = $osos;
		$osid_version{$osid} = $osversion;
		$osid_description{$osid} = $osdescription;
	    }
	}
	if ($node_type_osids{$type}) {
	    push @{$node_type_osids{$type}}, $osid;
	} else {
	    $node_type_osids{$type} = [$osid];
	}
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	if (defined($osfeatures) && $osfeatures =~ /no-usb-boot/) {
	    $osid_avoid_usb{$osid} = 1;
	}
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	#
	# We have to maintain a data structure telling us which types an OSID could
	# be on for use below with generic OSIDs
	#
	if ($osid_node_types{$osid}) {
	    push @{$osid_node_types{$osid}}, $type;
	} else {
	    $osid_node_types{$osid} = [$type];
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	}
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    }
}
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#
# XXX Note below that for now, subosids cannot redirect to other subosids.
#
$result = DBQueryFatal($subosidquery);
while (my ($subosid,$osid) = $result->fetchrow()) {
    if ($osid_subosids{$osid}) {
	push @{$osid_subosids{$osid}}, $subosid;
    } else {
	$osid_subosids{$osid} = [$subosid];
    }
}
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#
# We also have to resolve the 'generic' OSIDs, which use the nextosid field to
# redirect to another OSID
#
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$result = DBQueryFatal("select osid,nextosid from os_info where " .
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    "nextosid is not null");
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while (my ($osid,$nextosid) = $result->fetchrow()) {
    if (defined($openvzid) && $osid == $openvzid) {
	$openvzid = $nextosid;
    }
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    #
    # Check to see if they were allowed to use the real OSID
    #
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    my $realosid = TBResolveNextOSID($osid, $pid, $exempt_eid);
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    if (defined($realosid) && $osid_node_types{$realosid}) {
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	foreach my $type (@{$osid_node_types{$realosid}}) {
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	    push @{$node_type_osids{$type}}, $osid;
	}
    }
}

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# Print switches
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if (defined($switchtouse) && ! defined($component_name)) {
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    # Should probably get the last four args out of the database, but I don't
    # think we ever actually use this case...
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    print_switch($switchtouse,undef,undef,undef,undef,undef);
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    $switches{$switchtouse} = 1;
}
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elsif (! defined($component_name)) {
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    $result =
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	DBQueryFatal("select n.node_id,n.uuid,country,latitude,longitude, ".
		     "       na.attrvalue ".
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                     "   from nodes as n ".
		     "left join widearea_nodeinfo as wn ".
                     "     on n.node_id=wn.node_id " .
		     "left join node_types as nt on ".
		     "     nt.type=n.type ".
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		     "left join node_type_attributes as na on ".
		     "     na.type=n.type and ".
		     "     na.attrkey='forwarding_protocols' ".
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		     "where ".
		     ($usecontrol ?
		      "role='ctrlswitch' and nt.isswitch=1" :
		      "role='testswitch' or role='widearea_switch' or ".
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		      "n.type='external-switch' or ".
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		      "      (role='testnodefoo' and nt.isswitch=1)"));
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    while (($switch, $uuid, $country, $latitude, $longitude, $protocols) =
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            $result->fetchrow_array) {
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	print_switch($switch, $uuid,
		     $country, $latitude, $longitude, $protocols);
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	$switches{$switch} = 1;
    }
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}
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#
# Get the global counts.
#
$result =
    DBQueryFatal("select phys_nodeid,count(phys_nodeid) from reserved as r ".
		 "left join nodes as n on n.node_id=r.node_id ".
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		 "where n.node_id!=n.phys_nodeid ".
		 (defined($exempt_eid) ?
		  "and not (pid='$pid' and eid='$exempt_eid') " : " ") .
		 "group by phys_nodeid");
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while (my ($node_id,$count) = $result->fetchrow_array) {
    $globalcounts{$node_id} = $count;
}

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#
# Get the memory usage on each physical node. 
# This will be subtracted from whatever the type/node info says.
# Note that we have to exclude nodes from this experiment
# that are already mapped to the node since the user already owns that memory.
#
my %node_ramusage;

if ($virtstuff) {
    $result =
	DBQueryFatal("select n.phys_nodeid,n.reserved_memory from nodes as n ".
		     "left join reserved as r on r.node_id=n.node_id ".
		     "where n.node_id!=n.phys_nodeid ".
		     (defined($experiment) ?
		      "and r.exptidx!=" . $experiment->idx() : ""));

    while (my ($pnode,$memory) = $result->fetchrow_array()) {
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	$node_ramusage{$pnode} = 0
	    if (!exists($node_ramusage{$pnode}));
	
	$node_ramusage{$pnode} += $memory;
    }

    #
    # When running xen and there is a dom0mem attribute, we need to
    # subtract that too since it is not available. But we do not know
    # for sure that the node is running XEN. Need to addres this at
    # some point.
    #
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    $result = DBQueryFatal("select node_id,attrvalue from nodes as n ".
			   "left join node_type_attributes as na on ".
			   "     na.type=n.type and ".
			   "     na.attrkey='dom0mem' ".
			   "where na.attrkey is not null");
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    while (my ($pnode,$ram) = $result->fetchrow_array) {
	$node_ramusage{$pnode} = 0
	    if (!exists($node_ramusage{$pnode}));
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	# Ug, units.
	if ($ram =~ /^(\d*)M$/) {
	    $ram = $1;
	}
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	$node_ramusage{$pnode} += $ram;
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    }
}

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# Find available nodes.
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#
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# This first query deals with just local nodes. Local nodes can host
# virtnodes, according to the delay_capacity in the types table. 
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#
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# the ordinary free condition for a local node.
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my $free_condition = "(b.node_id is null and ".
                     " (np.eventstate='" . TBDB_NODESTATE_ISUP . "' or ".
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                     "  np.eventstate='" . TBDB_NODESTATE_PXEWAIT . "' or ".
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                     "  np.eventstate='" . TBDB_NODESTATE_POWEROFF . "' or ".
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                     "  np.eventstate='" . TBDB_NODESTATE_ALWAYSUP . "')) ";
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if (defined($pid)) {
    $free_condition = "($free_condition and ".
	"(np.reserved_pid is null or np.reserved_pid='$pid'))";
}

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# if the user has specified an exempt pid/eid, 
# then view any node which is reserved to that experiment as available.
if (defined($exempt_eid)) {
    $free_condition = "($free_condition or ".
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	"(b.pid='$pid' and b.eid='$exempt_eid'))"; 
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}
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# In shared mode, allow allocated nodes whose sharing_mode is set.
if ($useshared) {
    $free_condition = "($free_condition or ".
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	"(b.node_id is not null && b.erole='sharedhost' && ".
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	" np.eventstate='" . TBDB_NODESTATE_ISUP . "'))";
}

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# In blockstore mode, allow allocated nodes who are storagehosts.
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if ($useblockstore) {
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    $free_condition = "($free_condition or ".
	"(b.node_id is not null && b.erole='storagehost' && ".
	" np.eventstate='" . TBDB_NODESTATE_ISUP . "'))";
}

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# If the user wants all nodes, we consider everything to be free (this
# overrides the other possible free conditions
if ($allnodes) {
    $free_condition = "1";
}

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# By default, include no wide area nodes when setting up the data structures.
#$free_condition = "($free_condition and ".
#    "(t.isremotenode=0 or ".
#    "dedicated_wa_types.attrvalue=1))";

# But if they have asked for widearea, we want this prepass to include
# these nodes.
#if ($widearea) {
#    $free_condition = "($free_condition or ".
#	"(t.isremotenode=1 and ".
#	"t.isvirtnode=0 and t.type!='pcfedphys' and ".
#	"dedicated_wa_types.attrvalue is NULL))";
#}


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# In genimode exclude nodes with exclusion attribute.
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if ($genimode ne $NO_GENI) {
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    $free_condition = "($free_condition and ".
	"(nat1.attrvalue is null or nat1.attrvalue=0))";
}

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if (defined($component_name)) {
    $free_condition = "(a.node_id = \"$component_name\")";
}

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$result =
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    DBQueryFatal("select a.node_id,a.type,a.phys_nodeid,t.class,t.issubnode," .
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		 "a.def_boot_osid,(b.pid is not null and b.eid is not null), ".
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		 "  np.reserved_pid,np.eventstate, ".
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		 "  np.battery_percentage,np.uuid,b.sharing_mode, ".
		 "  ru.load_1min, ru.load_5min, ru.status_timestamp, ".
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		 "  a.def_boot_osid, nat2.attrvalue, wn.country, " .
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                 "  wn.latitude, wn.longitude, t.isremotenode, b.erole, ".
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		 "  nat3.attrvalue, so.osfeatures ".
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		 "from nodes as a ".
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		 "left join reserved as b on a.node_id=b.node_id ".
		 "left join reserved as m on a.phys_nodeid=m.node_id ".
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		 "left join nodes as np on a.phys_nodeid=np.node_id ".
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		 "left join node_types as t on t.type=a.type ".
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		 "left join node_attributes as nat1 on ".
		 "     nat1.node_id=a.node_id and ".
		 "     nat1.attrkey='protogeni_exclude' ".
		 "left join node_attributes as nat2 on ".
		 "     nat2.node_id=a.node_id and ".
		 "     nat2.attrkey='shared_weight' ".
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		 "left join node_attributes as nat3 on ".
		 "     nat3.node_id=a.node_id and ".
		 "     nat3.attrkey='allowed_projects' ".
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		 "left join node_rusage as ru on ru.node_id=a.node_id ".
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		 "left outer join ". 
		 "  (select type,attrvalue ".
		 "   from node_type_attributes ".
		 "   where attrkey='dedicated_widearea' ".
		 "   group by type) as dedicated_wa_types ".
		 "  on t.type=dedicated_wa_types.type ".
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                 "left join widearea_nodeinfo as wn on a.node_id=wn.node_id ".
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		 "left join os_info as so on a.def_boot_osid=so.osid ".
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		 "where $free_condition and ".
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		 "   (a.role='testnode' and (t.isremotenode=0 or ".
		 "                           dedicated_wa_types.attrvalue=1))");
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%storage_node = ();

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#
# Scan the results, checking permissions and adding to the list
# You get to use a node type if no pid was specified (that is, you get
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# to use all nodes), or if there is no entry in the perms table for
# the type/class of node.
#
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while (($node,$type,$physnode,$class,$issubnode,$def_boot_osid,$reserved,
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	$prereserved,$eventstate,$battery_perc,$uuid,$sharing_mode,
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	$load_1min,$load_5min,$load_tstamp,$osid,$weight,$country,$latitude,
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        $longitude,$isremote,$erole,
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	$allowed_projects,$osfeatures) = $result->fetchrow_array) {
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    my $current = $top->CreateNode($node);
    $current->SetSubnode($physnode, $issubnode);
    $current->SetRemote($isremote);

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    #
    # Look for a specific node restriction. Easier to to do here
    # then trying to do this up above in the already bizarre query.
    #
    if (defined($pid) && defined($allowed_projects)) {
	my @allowed = split(",", $allowed_projects);
	next
	    if (! grep {$_ eq $pid} @allowed);	
    }
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    $nodes{$node} = $type
	if (!defined($pid) ||
	    ($permissions{$type} && $permissions{$class}));
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    $node_def_boot_osid{$node} = $def_boot_osid;
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    if ($reserved) {
	$is_reserved{$node} = 1;
    } else {
	$is_reserved{$node} = 0;
    }
1045
    if ($useshared && $sharing_mode) {
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	$sharing_mode{$node} = { "load_1min"   => $load_1min,
				 "load_5min"   => $load_5min,
				 "load_tstamp" => $load_tstamp,
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				 "osid"        => $osid,
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				 "osfeatures"  => $osfeatures,
				 "weight"      => $weight };
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    } else {
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	$sharing_mode{$node} = 0;
    }
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    if (defined($erole) && $erole eq "storagehost") {
	$storage_node{$node} = 1;
    }

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    if (defined($prereserved) && !(defined($pid) && $prereserved eq $pid)) {
	$is_prereserved{$node} = $prereserved;
    }
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    $curr_state{$node} = $eventstate;
    $curr_batt{$node} = $battery_perc;
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    $node_countries{$node} = $country;
    $node_latitudes{$node} = $latitude;
    $node_longitudes{$node} = $longitude;
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}
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#
# Find out which nodes are connected to which, so that we can add some special
# features
#
$result = DBQueryFatal("SELECT DISTINCT node_id1, node_id2 " .
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                       "  FROM wires where logical=0 and type!='Unused'");
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my %connections = ();
while (my ($node_id1, $node_id2) = $result->fetchrow()) {
    foreach my $nodes ([$node_id1, $node_id2], [$node_id2, $node_id1]) {
        my ($node1, $node2) = @$nodes;
        if ($connections{$node1}) {
            # Check to see if we've already added this one (possible if the
            # nodes appeared in node1,node2 order, then node2,node1
            if (!grep(/^$node2$/, @{$connections{$node1}})) {
                push @{$connections{$node1}}, $node2;
            }
        } else {
            $connections{$node1} = [$node2];
        }
    }
}

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@nodenames = keys(%nodes);
if ($randomize)
{
    @nodenames = shuffle(@nodenames);
}

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#
# Loop through and print out all nodes
#
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foreach $node (@nodenames) {
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    my $current = $top->nodes()->{$node};

    # Wide area nodes are handled below
#    next
#	if ($current->is_remote());

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    my $type  = $nodes{$node};
    my $class = $typemap{$type}->{'CLASS'};
    my $delay_capacity = $typemap{$type}->{'DELAYCAP'};
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    my $simnode_capacity = $typemap{$type}->{'SIMCAP'};
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    my $cpu_speed = $typemap{$type}->{'SPEED'};
    my $ram = $typemap{$type}->{'RAM'};
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    my $trivspeed = $typemap{$type}->{'TRIVSPEED'};
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    my $uuid = $nodetouuid{$node};
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    my @types = ("$type:1");
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    my @sliver_types = ();
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    my @features = ();
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    my @flags;
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    my $needvirtgoo = 0;
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1125 1126
    my ($latitude, $longitude, $country);

1127 1128 1129 1130 1131 1132 1133 1134 1135
    # per-node override RAM.
    $ram = $node_ram{$node} if (exists($node_ram{$node}));
    if (exists($node_ramusage{$node})) {
	$ram -= $node_ramusage{$node};
	# Should this be an error?
	$ram = 0
	    if ($ram < 0);
    }

1136 1137 1138 1139 1140
    # XXX temporary hack until node reboot avoidance 
    # is available. Nodes running the FBSD-NSE image
    # will have a feature def-osid-fbsd-nse 0.0
    # This is used by assign to prefer these pnodes
    # first before using others.
1141 1142
    if($node_def_boot_osid{$node} && ($node_def_boot_osid{$node} eq 
	TBOSID(TB_OPSPID, "FBSD-NSE"))) { 
1143 1144 1145
	push(@features, "FBSD-NSE:0.0");
    }

1146 1147 1148 1149 1150 1151 1152 1153 1154
    #
    # XXX: Temporary hack - don't march switches that are testnodes
    # as having class 'switch' - assign treats those specially. We
    # use the knowledge that 'real' switches don't hit this point!
    #
    if ($class eq "switch") {
	$class = $type;
    }
        
1155
    # Might be equal, which assign would sum as two, not one!
1156 1157
    if ($type ne $class) {
	push(@types, "$class:1");
1158 1159
    }

1160 1161 1162 1163 1164
    my $explicit =
	$typemap{$type}->{'TYPEINFO'}->GetAttribute("explicit_request");
    if (defined($explicit)) {
	push(@features, "$type-explicit:1");
    }
1165
    if (defined($delay_capacity) && $delay_capacity > 0) {
1166 1167 1168 1169 1170 1171
	# Comes from the NS file;
	$delay_capacity = $delaycap_override
	    if (defined($delaycap_override) &&
		$delaycap_override > 0 &&
		$delaycap_override < $delay_capacity);
	
1172
	push @types, "delay:$delay_capacity";
1173
	push @types, "delay-${type}:$delay_capacity";
1174
    }
1175

1176 1177 1178 1179 1180 1181 1182 1183 1184 1185
    #
    # Prototype shared mode.
    #
    if ($sharing_mode{$node}) {
	#
	# Add a feature that says this node should not be picked
	# unless the cooresponding desire is in the vtop. This
	# allows the node to be picked, subject to other type constraints.
	#
	push(@features, "pcshared:1.0");
1186

1187 1188 1189
	#
	# Add a first-free feature which spreads VMs amongs shared nodes.
	#
1190
	push(@features, "*&spreadshared:0.6");
1191

1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235
	#
	# The pool daemon may override the share weight.
	#
	if (defined($sharing_mode{$node}->{"weight"})) {
	    my $weight = $sharing_mode{$node}->{"weight"};
	    
	    push(@features, "shareweight:$weight");
	}
	else {
	    #
	    # The point of this feature is to have assign favor shared nodes
	    # that already have nodes on them, so that they are well packed.
	    # Shared nodes with just a few vnodes on them are avoided so that
	    # they will free up eventually. 
	    #
	    my $maxvnodes = 10;
	    my $weight    = 0.5;
	    my $gcount    = $globalcounts{$node} || 0.0;

	    foreach my $auxinfo (@{$auxtypes{$node}}) {
		my ($auxtype,$count) = split(":", $auxinfo);
		
		if ($auxtype eq "pcvm") {
		    $maxvnodes = $count;
		    last;
		}
	    }
	    #
	    # No point in the feature if no room left. 
	    #
	    if ($maxvnodes > $gcount) {
		my $factor = ($gcount / $maxvnodes);
		if ($factor < 0.25) {
		    $weight = 0.8;
		}
		elsif ($factor > 0.75) {
		    $weight = 0.1;
		}
		else {
		    $weight = 0.3;
		}
		#push(@features, "shareweight:$weight");
	    }
	}
1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251
	my $osfeatures = $sharing_mode{$node}->{'osfeatures'};
	if (defined($osfeatures)) {
	    my @features = split(',', $osfeatures);
	    my $i = 0;
	    for (; $i < scalar(@features); ++$i) {
		if ($features[$i] eq 'openvz-host') {
		    push(@sliver_types, "emulab-openvz");
		} elsif ($features[$i] eq 'xen-host') {
		    push(@sliver_types, "emulab-xen");
		}
	    }
	}
    } else {
	push(@sliver_types, "raw-pc");
	push(@sliver_types, "emulab-openvz");
	push(@sliver_types, "emulab-xen");	
1252 1253
    }

1254 1255 1256 1257 1258 1259 1260
    #
    # Storage Nodes
    #
    if (exists($storage_node{$node})) {
	push(@features, "pcstorage:1.0");
    }

1261 1262 1263
    #
    # Add any auxiliary types
    #
1264 1265 1266
    foreach my $auxinfo (@{$auxtypes{$node}}) {
	my ($auxtype,$count) = split(":", $auxinfo);
	my $realtype;
1267

1268 1269 1270
	# Map an auxtype back to its real type, unless it is a real type.
	if (defined($auxtypemap{$auxtype})) {
	    $realtype = $auxtypemap{$auxtype};
1271 1272
	}
	else {
1273
	    $realtype = $auxtype;
1274
	}
1275 1276 1277 1278

	if ($typemap{$realtype}->{'ISVIRT'} && $count > 0) {
	    next
		if (! $virtstuff);
1279 1280 1281 1282 1283 1284 1285

	    #
	    # If the node is shared, must subtract the current global count
	    # from the max first, to see if there is any room left.
	    #
	    if ($sharing_mode{$node} && exists($globalcounts{$node})) {
		$count -= $globalcounts{$node};
1286
	    }
1287 1288
	    if (defined($mfactor) && $mfactor <= $count) {
		$count = $mfactor;
1289
	    }
1290
	    $auxinfo = "$auxtype:$count";
1291
	    $needvirtgoo = 1;
1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302

	    #
	    # Add in machine specific auxtypes that use the same count.
	    #
	    push(@types, "${type}-vm:$count");

	    # And a legacy type.
	    my $legacy_type = $type;
	    if (($legacy_type =~ s/pc/pcvm/)) {
		push(@types, "${legacy_type}:$count");
	    }
1303 1304 1305 1306
	}
	push(@types, $auxinfo);
    }

1307
    if (defined($areamap{$node})) {
1308
	push @features, $areamap{$node};
1309 1310
    }

1311
    my $cpu_ram_features_present = 0;
1312 1313 1314 1315
    #
    # This stuff is extra goo for local virtual nodes.
    # 
    if ($needvirtgoo) {
1316
	push @types, "*lan:*";
1317 1318 1319 1320
	# Add trivial bw spec., but only if the node type has it
	if ($trivspeed) {
	    push @flags, "trivial_bw:$trivspeed";
	}
1321 1322 1323
	# Add CPU and RAM information
	$cpu_ram_features_present++;

1324 1325 1326 1327
	if (! $sharing_mode{$node}) {
	    # This number can be use for fine-tuning packing
	    push @features, "?+virtpercent:100";
	}
1328
	# Put this silly feature in so that we can try to keep vnodes
1329 1330 1331 1332
	# on the same pnode they were before - but only if updating
        if ($exempt_eid) {
            push @features, "${node}:0.0";
        }
1333 1334
    }

1335
    if ($simstuff && defined($simnode_capacity) && $simnode_capacity > 0) {
1336 1337 1338 1339 1340 1341 1342 1343 1344
	#
	# Use user specified multiplex factor
	#
	if (defined($mfactor) && $mfactor <= $simnode_capacity) {
	    push @types, "sim:$mfactor";
	}
	else {
	    push @types, "sim:$simnode_capacity";
	}
1345
	# Add CPU and RAM information
1346
	$cpu_ram_features_present++;
1347 1348 1349 1350
	push @types, "*lan:*";
	# Add trivial bw spec.
	push @flags, "trivial_bw:100000";
    }
1351 1352
    if ($cpu_ram_features_present) {
	# Add CPU and RAM information
1353 1354 1355 1356
	push @features, "?+cpu:$cpu_speed"
	    if (defined($cpu_speed));
	push @features, "?+ram:$ram"
	    if (defined($ram));
1357 1358
	push @features, "?+cpupercent:92"; # XXX Hack
	push @features, "?+rampercent:80"; # XXX Hack
1359
    }
1360

1361
    # Add features
1362 1363 1364 1365 1366
    if (! $sharing_mode{$node}) {
	push(@features, @{$typemap{$type}->{'FEATURES'}});
	if (defined($features{$node})) {
	    push @features, @{$features{$node}};
	}
1367 1368 1369 1370 1371 1372 1373
    } else {
	for my $feature (@{$typemap{$type}->{'FEATURES'}}) {
	    # TODO: Un-hardcode this. Ugh.
	    if ($feature =~ /highvlan/) {
		push(@features, $feature);
	    }
	}
1374 1375
    }

1376
    #
1377
    # Add in OS features.
1378
    #