libvtop.pm.in 169 KB
Newer Older
1
#!/usr/bin/perl -wT
2 3 4 5 6 7 8 9 10 11
#
# EMULAB-COPYRIGHT
# Copyright (c) 2005-2009 University of Utah and the Flux Group.
# All rights reserved.
#
package libvtop;

use strict;
use Exporter;
use vars qw(@ISA @EXPORT @EXPORT_OK
12
	    $VTOP_FLAGS_UPDATE $VTOP_FLAGS_VERBOSE
13 14
	    $VTOP_FLAGS_FIXNODES $VTOP_FLAGS_IMPOTENT
	    $VTOP_FLAGS_REGRESSION);
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

@ISA    = "Exporter";
@EXPORT = qw( );

use libdb;
use libtblog;
use libtestbed;
use Experiment;
use VirtExperiment;
use Node;
use NodeType;
use Lan;
use OSinfo;
use English;
use Data::Dumper;
use Carp;
31
use POSIX;
32
use XML::LibXML;
33 34

# Configure variables
35 36
my $TB		  = "@prefix@";
my $BOSSNODE      = "@BOSSNODE@";
37
my $AVAIL         = "$TB/bin/avail";
38 39 40
my $NALLOC        = "$TB/bin/nalloc";
my $NFREE         = "$TB/bin/nfree";
my $OS_SELECT     = "$TB/bin/os_select";
41
my $DELAYCAPACITY = @DELAYCAPACITY@;	# Can be overridden by user.
42
my $DELAYTHRESH   = @DELAYTHRESH@;
43 44 45 46

# Flags.
$VTOP_FLAGS_VERBOSE	= 0x01;
$VTOP_FLAGS_UPDATE	= 0x02;
47
$VTOP_FLAGS_FIXNODES	= 0x04;
48
$VTOP_FLAGS_IMPOTENT	= 0x08;
49
$VTOP_FLAGS_REGRESSION  = 0x10;
50

51
@EXPORT_OK = qw($VTOP_FLAGS_UPDATE $VTOP_FLAGS_VERBOSE $VTOP_FLAGS_FIXNODES
52
		$VTOP_FLAGS_IMPOTENT $VTOP_FLAGS_REGRESSION);
53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

#
# Create an object representing the stuff we need to create the vtop file.
#
sub Create($$$)
{
    my ($class, $experiment, $flags) = @_;

    my $virtexperiment = VirtExperiment->Lookup($experiment);
    if (!defined($virtexperiment)) {
	tberror("Could not load virtual experiment object for $experiment\n");
	return undef;
    }

    my $self              = {};
    $self->{'EXPERIMENT'} = $experiment;
    $self->{'VIRTEXPT'}   = $virtexperiment;
    $self->{'FLAGS'}      = $flags;
    $self->{'VNODES'}     = {};
72 73
    $self->{'DELAYNODES'} = {};
    $self->{'LANNODES'}   = {};
74
    $self->{'VLANS'}      = {};
75 76 77 78 79 80
    $self->{'MEMBEROF'}   = {};
    $self->{'COUNTERS'}   = {};
    $self->{'EXPTSTATS'}  = {};
    $self->{'DELAYLINKS'} = {};
    $self->{'OPTIONS'}    = {};
    $self->{'DELAYID'}    = 0;
81
    $self->{'PHOSTID'}    = 0;
82
    $self->{'IFACEID'}    = 32768;
83
    $self->{'PORTBW'}     = {};
84 85 86 87
    $self->{'RESULTS'}    = { "nodes"  => [],
			      "links"  => [],
			      "class"  => [],
			      "fixed"  => [] };
88 89

    # Mostly for update mode.
90 91 92 93 94 95
    $self->{'FIXEDNODES'}  = {};
    $self->{'CURRENT_V2P'} = {};
    $self->{'CURRENT_P2V'} = {};
    $self->{'CURRENT_V2V'} = {};

    # Below is for interpretation of assign results.
96
    $self->{'PNODES'}      = {};
97 98 99
    $self->{'SOLUTION'}    = {};
    $self->{'OLDRSRVCLEAN'}= 0;
    $self->{'NEWRESERVED'} = {};	# Newly reserved nodes.
100
    $self->{'NORECOVER'}   = 0;	
101
    
102 103 104 105 106 107 108 109 110
    bless($self, $class);

    return $self;
}
# accessors
sub experiment($)       { return $_[0]->{'EXPERIMENT'}; }
sub virtexperiment($)   { return $_[0]->{'VIRTEXPT'}; }
sub flags($)            { return $_[0]->{'FLAGS'}; }
sub vnodes($)           { return $_[0]->{'VNODES'}; }
111 112
sub delaynodes($)       { return $_[0]->{'DELAYNODES'}; }
sub lannodes($)         { return $_[0]->{'LANNODES'}; }
113
sub vlans($)            { return $_[0]->{'VLANS'}; }
114 115
sub memberof($)         { return $_[0]->{'MEMBEROF'}; }
sub counters($)         { return $_[0]->{'COUNTERS'}; }
116
sub counter($$)         { return $_[0]->{'COUNTERS'}->{$_[1]}; }
117
sub options($)          { return $_[0]->{'OPTIONS'}; }
118 119
sub option($$)          { return (exists($_[0]->{'OPTIONS'}->{$_[1]}) ?
				  $_[0]->{'OPTIONS'}->{$_[1]} : undef); }
120 121 122 123
sub exptstats($)        { return $_[0]->{'EXPTSTATS'}; }
sub delaylinks($)       { return $_[0]->{'DELAYLINKS'}; }
sub delaynodecount()    { return scalar(keys(%{ $_[0]->delaynodes() })); }
sub portbw($)           { return $_[0]->{'PORTBW'}; }
124
sub results($)          { return $_[0]->{'RESULTS'}; }
125 126 127 128 129
sub current_v2p($)      { return $_[0]->{'CURRENT_V2P'}; }
sub current_p2v($)      { return $_[0]->{'CURRENT_P2V'}; }
sub current_v2v($)      { return $_[0]->{'CURRENT_V2V'}; }
sub pnodes($)           { return $_[0]->{'PNODES'}; }
sub fixednodes($)       { return $_[0]->{'FIXEDNODES'}; }
130
sub newreserved($)      { return $_[0]->{'NEWRESERVED'}; }
131
sub newreservednodes($) { return keys(%{ $_[0]->{'NEWRESERVED'} }); }
132
sub norecover($)        { return $_[0]->{'norecover'}; }
133 134 135 136 137 138 139 140 141
sub pid($)		{ return $_[0]->experiment()->pid(); }
sub pid_idx($)		{ return $_[0]->experiment()->pid_idx(); }
sub eid($)		{ return $_[0]->experiment()->eid(); }
sub exptidx($)		{ return $_[0]->experiment()->idx(); }

# The virtual tables from the DB.
sub virt_table($$)      { return $_[0]->virtexperiment()->Table($_[1]); }
sub virt_vtypes($)	{ return $_[0]->virt_table("virt_vtypes"); }
sub virt_nodes($)       { return $_[0]->virt_table("virt_nodes"); }
142 143 144 145
sub virt_lans($)        { return $_[0]->virt_table("virt_lans"); }
sub virt_lan_lans($)    { return $_[0]->virt_table("virt_lan_lans"); }
sub virt_desires($)	{ return $_[0]->virt_table("virt_node_desires"); }
sub virt_startloc($)	{ return $_[0]->virt_table("virt_node_startloc"); }
146 147 148 149
sub virt_trafgens($)	{ return $_[0]->virt_table("virt_trafgens"); }
sub virt_lan_settings($){ return $_[0]->virt_table("virt_lan_settings"); }
sub virt_lan_member_settings($)	{
    return $_[0]->virt_table("virt_lan_member_settings"); }
150 151 152 153

# Given a vname, is it a node in the topo (or something else like a delay).
sub isatoponode($$)     { return exists($_[0]->vnodes()->{$_[1]}); }
sub isadelaynode($$)    { return exists($_[0]->delaynodes()->{$_[1]}); }
154 155 156

# Debug output.
sub verbose($)		{ return $_[0]->flags() & $VTOP_FLAGS_VERBOSE; }
157
sub updating($)		{ return $_[0]->flags() & $VTOP_FLAGS_UPDATE; }
158
sub fixcurrent($)	{ return $_[0]->flags() & $VTOP_FLAGS_FIXNODES; }
159
sub impotent($)		{ return $_[0]->flags() & $VTOP_FLAGS_IMPOTENT; }
160
sub regression($)	{ return $_[0]->flags() & $VTOP_FLAGS_REGRESSION; }
161 162
sub printdb($$)		{ print $_[1] if ($_[0]->verbose()); }

163
# We name delay nodes internally as they are needed.
164
sub nextdelayname($)    { return "tbdelay" . $_[0]->{'DELAYID'}++; }
165 166
# For when the user wants a specific delay os. Use a desire.
sub delay_desire($)	{ return $_[0]->option("delay_desire_string"); }
167 168
# For XML
sub nextifacenumber($)  { return $_[0]->{'IFACEID'}++; }
169
sub nextphostnumber($)  { return $_[0]->{'PHOSTID'}++; }
170

171 172 173 174
# Virtual Types. 
sub virttypeisvtype($$) { return $_[0]->virt_vtypes()->Find($_[1]); }
sub VirtTypes($)        { return $_[0]->virt_vtypes()->Rows(); }

175 176 177
# Results are stored until they are spit out in one of several formats.
sub addvclass($$)	{ push(@{$_[0]->results()->{"class"}}, $_[1]); }
sub addfixed($$)	{ push(@{$_[0]->results()->{"fixed"}}, $_[1]); }
178 179 180 181 182 183
# The reason for this funkyness is so output order is consistent with
# assign_wrapper when running in regression mode. 
sub addnode($$)		{ push(@{$_[0]->results()->{"nodeslinks"}},
			       ["node", $_[1]]); }
sub addlink($$)		{ push(@{$_[0]->results()->{"nodeslinks"}},
			       ["link", $_[1]]); }
184 185 186 187

# Caller will want these.
sub minimum_nodes($)    { return $_[0]->counter("minimum_nodes"); }
sub maximum_nodes($)    { return $_[0]->counter("maximum_nodes"); }
188 189 190 191
sub plabcount($)	{ return $_[0]->counter("plabcount"); }
sub virtnodecount($)	{ return $_[0]->counter("virtcount"); }
sub simnodecount($)	{ return $_[0]->counter("simcount"); }
sub remotenodecount($)	{ return $_[0]->counter("remotecount"); }
192
sub sharednodecount($)	{ return $_[0]->counter("sharedcount"); }
193 194 195 196 197 198 199 200

###############################################################################
# Virtual Nodes. A separate package so we can create objects for each one
# and then add local stuff to them.
#
package libvtop::virt_node;
use Carp;
use vars qw($AUTOLOAD);
201
use overload ('""' => 'Stringify');
202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234

# To avoid wrtting out all the methods.
sub AUTOLOAD {
    my $self = shift;
    my $type = ref($self) or croak "$self is not an object";

    my $name = $AUTOLOAD;
    $name =~ s/.*://;   # strip fully-qualified portion

    if (@_) {
	return $self->{'HASH'}->{$name} = shift;
    }
    elsif (exists($self->{'HASH'}->{$name})) {
	return $self->{'HASH'}->{$name};
    }
    else {
	return $self->virt_node()->$name();
    }
}

#
# Wrap up a virt node.
#
sub Create($$$)
{
    my ($class, $vtop, $virt_node) = @_;

    my $self = {};
    bless($self, $class);

    $self->{'VIRTNODE'} = $virt_node;
    $self->{'VTOP'}     = $vtop;
    $self->{'HASH'}     = {};
235
    
236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251
    return $self;
}
# accessors
sub virt_node($)	{ return $_[0]->{'VIRTNODE'}; }
sub vtop($)		{ return $_[0]->{'VTOP'}; }
sub hash($)		{ return $_[0]->{'HASH'}; }

# Break circular reference someplace to avoid exit errors.
sub DESTROY {
    my $self = shift;

    $self->{'VIRTNODE'}   = undef;
    $self->{'VTOP'}       = undef;
    $self->{'HASH'}       = undef;
}

252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299
sub Stringify($)
{
    my ($self) = @_;
    my $vname  = $self->vname();

    return "[vnode:$vname]";
}

###############################################################################
# Virtual Lans. This wraps up the virt_lan_lan table, and allows storing
# the members (virt_lans table entries).
#
package libvtop::virt_lan;
use Carp;
use vars qw($AUTOLOAD);
use overload ('""' => 'Stringify');

# To avoid wrtting out all the methods.
sub AUTOLOAD {
    my $self = shift;
    my $type = ref($self) or croak "$self is not an object";

    my $name = $AUTOLOAD;
    $name =~ s/.*://;   # strip fully-qualified portion

    if (@_) {
	return $self->{'HASH'}->{$name} = shift;
    }
    elsif (exists($self->{'HASH'}->{$name})) {
	return $self->{'HASH'}->{$name};
    }
    else {
	return $self->virt_lanlan()->$name();
    }
}

#
# Wrap up a virt lan.
#
sub Create($$$$)
{
    my ($class, $vtop, $virt_lanlan) = @_;

    my $self = {};
    bless($self, $class);

    $self->{'VIRTLANLAN'}    = $virt_lanlan;
    $self->{'VTOP'}          = $vtop;
300 301
    $self->{'MEMBERHASH'}    = {};
    $self->{'MEMBERLIST'}    = [];
302 303 304 305 306 307 308
    $self->{'SHAPEDMEMBERS'} = {};
    $self->{'HASH'}          = {};

    return $self;
}
# accessors
sub virt_lanlan($)	{ return $_[0]->{'VIRTLANLAN'}; }
309 310
sub members($)		{ return $_[0]->{'MEMBERHASH'}; }
sub memberlist($)       { return @{ $_[0]->{'MEMBERLIST'} }; }
311 312 313 314 315 316 317 318 319
sub shapedmembers($)	{ return $_[0]->{'SHAPEDMEMBERS'}; }
sub vtop($)		{ return $_[0]->{'VTOP'}; }
sub hash($)		{ return $_[0]->{'HASH'}; }

# Break circular reference someplace to avoid exit errors.
sub DESTROY {
    my $self = shift;

    $self->{'VIRTLANLAN'} = undef;
320 321
    $self->{'MEMBERHASH'} = undef;
    $self->{'MEMBERLIST'} = undef;
322 323 324 325 326 327 328 329 330 331 332 333
    $self->{'VTOP'}       = undef;
    $self->{'HASH'}       = undef;
}

sub Stringify($)
{
    my ($self) = @_;
    my $vname  = $self->vname();

    return "[vlan:$vname]";
}

334 335 336 337 338 339 340 341 342 343
sub addmember($$)
{
    my ($self, $vlanmember) = @_;
    
    $self->members()->{$vlanmember->member()} = $vlanmember;
    push(@{ $self->{'MEMBERLIST'} }, $vlanmember);

    return 0;
}

344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436
#
# Other support functions.
#
sub usevirtiface($)
{
    my ($self) = @_;
    my $encap  = $self->_encapstyle();

    return ($encap eq "veth" || $encap eq "veth-ne" || $encap eq "vlan");
}
sub membershaped($$) {
    my ($self, $member) = @_;
    return $self->shapedmembers()->{"$member"};
}
sub setmembershaped($$) {
    my ($self, $member) = @_;
    $self->shapedmembers()->{"$member"} = 1;
}

###############################################################################
# Virtual Lans Member. A separate package so we can create objects for
# each one and then add local stuff to them.
#
package libvtop::virt_lan_member;
use Carp;
use vars qw($AUTOLOAD);
use overload ('""' => 'Stringify');

# To avoid wrtting out all the methods.
sub AUTOLOAD {
    my $self = shift;
    my $type = ref($self) or croak "$self is not an object";

    my $name = $AUTOLOAD;
    $name =~ s/.*://;   # strip fully-qualified portion

    if (@_) {
	return $self->{'HASH'}->{$name} = shift;
    }
    elsif (exists($self->{'HASH'}->{$name})) {
	return $self->{'HASH'}->{$name};
    }
    else {
	return $self->virt_member()->$name();
    }
}

#
# Wrap up a virt lan member.
#
sub Create($$$$)
{
    my ($class, $vtop, $virt_member, $virt_lan) = @_;

    my $self = {};
    bless($self, $class);

    $self->{'VIRTMEMBER'} = $virt_member;
    $self->{'VIRTLAN'}    = $virt_lan;
    $self->{'VIRTNODE'}   = $vtop->vnodes()->{$virt_member->vnode()};
    $self->{'VTOP'}       = $vtop;
    $self->{'HASH'}       = {};

    return $self;
}
# accessors
sub virt_member($)	{ return $_[0]->{'VIRTMEMBER'}; }
sub virt_lan($)		{ return $_[0]->{'VIRTLAN'}; }
sub virt_node($)	{ return $_[0]->{'VIRTNODE'}; }
sub vtop($)		{ return $_[0]->{'VTOP'}; }
sub hash($)		{ return $_[0]->{'HASH'}; }

# Break circular reference someplace to avoid exit errors.
sub DESTROY {
    my $self = shift;

    $self->{'VIRTLAN'}    = undef;
    $self->{'VIRTNODE'}   = undef;
    $self->{'VIRTMEMBER'} = undef;
    $self->{'VTOP'}       = undef;
    $self->{'HASH'}       = undef;
}

sub Stringify($)
{
    my ($self) = @_;
    my $vnode  = $self->vnode();
    my $vport  = $self->vport();

    return "$vnode:$vport";
}


437 438 439 440 441
#############################################################################
# Back to the main package.
#
package libvtop;

442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493
#
# Load some physical info (for types, interfaces, speeds).
#
sub LoadPhysInfo($)
{
    my ($self) = @_;

    $self->printdb("Loading physical info\n");

    #
    # Interface capabilities, for getting speeds.
    #
    my %interface_capabilities = ();

    my $query_result =
	DBQueryWarn("select * from interface_capabilities");
    return -1
	if (!$query_result);

    while (my ($type, $capkey, $capval) = $query_result->fetchrow()) {
	$interface_capabilities{$type} = {}
  	    if (!defined($interface_capabilities{$type}));
	$interface_capabilities{$type}->{$capkey} = $capval;
    }

    #
    # Now get interface speeds for each type/class. We use this for
    # determining if a delay node is required. Very hacky, quite
    # wrong.
    #
    my %node_type_linkbw = ();
    
    # XXX: PlanetLab hack - PlanetLab 'control' interfaces are also
    # 'experimental' interfaces! We probably need a way to express
    # this in the interfaces table or interface_types
    #
    $query_result =
	DBQueryWarn("select distinct i.interface_type,n.type ".
		    "  from interfaces as i ".
		    "left join nodes as n on n.node_id=i.node_id ".
		    "where i.role='" . TBDB_IFACEROLE_EXPERIMENT . "' ".
		    "      or (n.type='pcplabphys' and i.role='" .
		                 TBDB_IFACEROLE_CONTROL . "')");
    return -1
	if (!$query_result);

    # XXX Special hack for sim nodes.
    $node_type_linkbw{"sim"} = {};

    while (my ($iface_type, $node_type) = $query_result->fetchrow()) {
	my $typeinfo = NodeType->Lookup($node_type);
	if (!defined($typeinfo)) {
494
	    warn("No type info for node type $node_type\n");
495 496 497 498 499 500 501 502 503 504
	    return -1;
	}
	my $node_class = $typeinfo->class();

	$node_type_linkbw{$node_type} = {}
	    if (!defined($node_type_linkbw{$node_type}));
	$node_type_linkbw{$node_class} = {}
	    if (!defined($node_type_linkbw{$node_class}));

	if (!defined($interface_capabilities{$iface_type}->{"protocols"})) {
505
	    warn("No protocols listed in capabilities for $iface_type!\n");
506 507 508 509 510 511 512 513 514 515
	    return -1;
	}
	my @protolist =
	    split(",", $interface_capabilities{$iface_type}->{"protocols"});

	foreach my $proto (@protolist) {
	    my $def_speed =
		$interface_capabilities{$iface_type}->{"${proto}_defspeed"};

	    if (!defined($def_speed)) {
516
		warn("No default speed in capabilites for $iface_type!\n");
517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542
		return -1;
	    }

	    my $auxspeeds =
		$interface_capabilities{$iface_type}->{"${proto}_auxspeeds"};
	    my @auxspeedlist = ();
	    if ($auxspeeds) {
		@auxspeedlist = split(",", $auxspeeds);
	    }

	    foreach my $speed ($def_speed, @auxspeedlist) {
		$node_type_linkbw{$node_type}{$proto}->{$speed} = 1;
		$node_type_linkbw{$node_class}{$proto}->{$speed} = 1;

		#
		# If the type/class has a non-zero simnode capacity, then add
		# entries for the interface speed so that requires_delay can
		# figure out interface speeds the underlying node type
		# supports.
		#
		if ($typeinfo->simnode_capacity()) {
		    $node_type_linkbw{"sim"}{$proto}->{$speed} = 1;
		}
	    }
	}
    }
543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564

    #
    # Ug, it just gets worse and worse. We also need to map between the
    # auxtypes that a node (its physical type) can take on. For example,
    # a link between two pcvm nodes is really a link between a pc600 and
    # pc850.
    #
    $query_result =
	DBQueryFatal("select distinct n.type,at.type from node_auxtypes as at ".
		     "left join nodes as n on n.node_id=at.node_id");

    while (my ($phystype, $auxtype) = $query_result->fetchrow()) {
	next
	    if (!exists($node_type_linkbw{$phystype}));
	
	$node_type_linkbw{$auxtype} = $node_type_linkbw{$phystype};
    }

    #
    # Here it goes getting even worse - we have to do a similar thing for
    # vtypes.
    #
565 566 567
    foreach my $ref ($self->VirtTypes()) {
	my $vtype   = $ref->name();
	my @members = split(" ", $ref->members());
568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595

	foreach my $phystype (@members) {
	    next
		if (!exists($node_type_linkbw{$phystype}));

	    $node_type_linkbw{$vtype} = {}
	        if (!defined($node_type_linkbw{$vtype}));

	    foreach my $protocol (keys(%{ $node_type_linkbw{$phystype} })) {
		my @list = keys(%{ $node_type_linkbw{$phystype}{$protocol} });
		foreach my $speed (@list) {
		    $node_type_linkbw{$vtype}{$protocol}->{$speed} = 1;
		}
	    }
	}
    }

    if ($self->verbose()) {
	$self->printdb("Interface Speeds:\n");
	foreach my $type (keys(%node_type_linkbw)) {
	    foreach my $protocol (keys(%{ $node_type_linkbw{$type} })) {
		my @list = keys(%{ $node_type_linkbw{$type}{$protocol} });

		$self->printdb(" $type:$protocol - @list\n");
	    }
	}
    }
    
596 597 598 599 600
    $self->{'IFACECAPS'}  = \%interface_capabilities;
    $self->{'TYPELINKBW'} = \%node_type_linkbw;
    
    return 0;
}
601 602 603 604 605 606
sub interfacespeedmbps($$$)
{
    my ($self, $type, $which) = @_;
        
    return $self->{'IFACECAPS'}->{$type}->{"${which}_defspeed"}/1000.0;
}
607

608 609 610 611
#
# When updating with fixednodes turned on, we need the current set
# of nodes that need to be fixed.
#
612
sub LoadCurrentResources($)
613 614 615 616 617 618 619
{
    my ($self) = @_;

    $self->counters()->{'reserved_simcount'}  = 0;
    $self->counters()->{'reserved_virtcount'} = 0;
    $self->counters()->{'reserved_physcount'} = 0;

620 621
    $self->printdb("Loading current resources" .
		   ($self->regression() ? " in regression mode" : "") . "\n");
622

623
    my @nodelist = $self->experiment()->NodeList(0, 1);
624 625 626
    return 0
	if (!@nodelist);

627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644
    if ($self->regression()) {
	#
	# In regression mode, we just store the p2v mapping for fixnode.
	#
	foreach my $pnode (@nodelist) {
	    my $vname   = $pnode->vname();
	    my $node_id = $pnode->node_id();

	    if ($pnode->isvirtnode()) {
		$self->fixednodes()->{$vname} = $pnode->phys_nodeid();
	    }
	    else {
		$self->fixednodes()->{$vname} = $node_id;
	    }
	}
	return 0;
    }

645
    foreach my $pnode (@nodelist) {
646 647 648 649 650 651 652 653 654
	my $vname   = $pnode->vname();
	my $node_id = $pnode->node_id();
	my $rsrv    = $pnode->ReservedTableEntry();

	# A list of vnodes on this pnode.
	$self->current_p2v()->{$pnode->phys_nodeid()} = []
	    if (! exists($self->current_p2v()->{$pnode->phys_nodeid()}));
	$self->pnodes()->{$node_id} = $pnode;

655 656 657 658 659 660 661 662 663 664
	#
	# WIDEAREA nodes are going to break.
	#
	if ($pnode->isremotenode() &&
	    !$pnode->isplabdslice() && !$pnode->isdedicatedremote()) {
	    tberror("Cannot update widearea nodes yet!\n");
	    return -1;
	}
	if ($pnode->isvirtnode()) {
	    $self->counters()->{'reserved_virtcount'}++;
665 666 667 668 669 670 671

	    # Get the underlying physical node.
	    my $ppnode = Node->Lookup($pnode->phys_nodeid());
	    if (!defined($ppnode)) {
		tberror("Cannot map $pnode to its real physnode");
		return -1;
	    }
672
	    my $ppnode_id = $ppnode->node_id();
673

674 675 676
	    $self->fixednodes()->{$vname} = $ppnode_id
		if ($self->fixcurrent());
	    
677 678 679
	    #
	    # Record the mappings. 
	    #
680 681
	    $self->current_v2v()->{$vname} = $pnode->node_id();
	    $self->current_v2p()->{$vname} = $ppnode->node_id();
682 683 684 685 686
	    push(@{ $self->current_p2v()->{$ppnode->node_id()} }, $vname);
	    
	    # Mark the node as unused until later.
	    $pnode->_reuse("unused");
	    $ppnode->_reuse("unused");
687 688
	    
	    $self->printdb("current v2p: $node_id ($ppnode_id) -> $vname\n");
689 690 691 692 693 694 695 696 697 698
	}
	else {
	    #
	    # All the sim stuff is bit rotting cause no one understands it.
	    #
	    if ($rsrv->{'erole'} eq TBDB_RSRVROLE_SIMHOST) {
		tberror("Cannot update sim nodes yet!\n");
		return -1;
	    }
	    else {
699 700 701
		$self->fixednodes()->{$vname} = $pnode->node_id()
		    if ($self->fixcurrent());
		
702
		$self->counters()->{'reserved_physcount'}++;
703 704 705 706

		#
		# Record the mapping. 
		#
707
		$self->current_v2p()->{$vname} = $pnode->node_id();
708 709 710 711 712
		push(@{ $self->current_p2v()->{$node_id} }, $vname);
		# Mark the node as unused until later.
		$pnode->_reuse("unused");

		$self->printdb("current v2p: $node_id -> $vname\n");
713 714 715 716 717 718
	    }
	}
    }
    return 0;
}

719 720 721 722 723 724
sub LoadVirtNodes($)
{
    my ($self) = @_;

    $self->printdb("Loading virtual nodes\n");

725 726 727 728
    my $pid    = $self->pid();
    my $eid    = $self->eid();
    my $table  = $self->virt_nodes();

729
    foreach my $virt_node ($table->Rows()) {
730 731 732 733
	my $vnode    = libvtop::virt_node->Create($self, $virt_node);
	my $vname    = $vnode->vname();
	my $desires  = {};
	my $startloc = undef;
734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752

	# Other fields we need.
	my $ips     = $vnode->ips();
	my $type    = $vnode->type();
	my $fixed   = $vnode->fixed();
	my $osname  = $vnode->osname();

	# XXX
	# If its a vtype, there will not be any node_type data. This
	# can break things, if one were to mix a virt/remote type with
	# a nonvirt/local type! Need to actually verify the vtypes
	# for consistency. 
	#
	my $isremote= 0;
	my $isvirt  = 0;
	my $issub   = 0;
	my $isplab  = 0;
	my $issim   = 0;
	my $isdyn   = 0;	# Only virtnodes are dynamic.
753
	my $isvtyped= 0;
754
	my $isded   = 0;
755 756 757 758 759 760

	# If we have a real type or auxtype ...
	my $nodetype = NodeType->LookupAny($type);
	if (!defined($nodetype)) {
	    my $vtype = $self->virttypeisvtype($type);
	    if (!defined($vtype)) {
761
		warn("Improper type $type for node $vnode!\n");
762 763 764 765 766 767 768 769 770 771
		return -1;
	    }
	    #
	    # For now, just pick the first member type.
	    #
	    my @memberlist = split(" ", $vtype->members());
	    my $vtypename  = $memberlist[0];

	    $nodetype = NodeType->LookupAny($vtypename);
	    if (!defined($nodetype)) {
772
		warn("Improper type $vtypename in vtypes for node $vnode!\n");
773 774
		return -1;
	    }
775
	    $isvtyped = 1;
776
	}
777 778
	$vnode->_typeinfo($nodetype);
	
779 780 781 782 783 784
	$isremote = $nodetype->isremotenode();
	$isvirt   = $nodetype->isvirtnode();
	$issub    = $nodetype->issubnode();
	$isplab   = $nodetype->isplabdslice();
	$issim    = $nodetype->issimnode();
	$isdyn    = $nodetype->isdynamic();
785
	$isded    = $nodetype->isdedicatedremote();
786

787 788 789
	# Mark this as being a virtual typed node.
	$vnode->_isvtyped($isvtyped);

790 791 792 793 794 795 796 797
	# All this info is stashed in our local object.
	$vnode->_nodeweight(undef);
	$vnode->_isremotenode($isremote);
	$vnode->_isvirtnode($isvirt);
	$vnode->_issubnode($issub);
	$vnode->_isplabnode($isplab);
	$vnode->_issimnode($issim);
	$vnode->_isdynamic($isdyn);
798
	$vnode->_isdedremote($isded);
799

800 801 802
	# User says a shared node is okay.
	$vnode->_sharedokay(($isvirt && $vnode->sharing_mode() ? 1 : 0));

803 804
	# The mapped osname to actual osinfo structure.
	$vnode->_osinfo(undef);
805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823
	# Eventual physical mapping. 
	$vnode->_physnode(undef);
	# Handy to combine these.
	$vnode->_settings([ $vnode->cmd_line(),
			    $vnode->rpms(),
			    $vnode->startupcmd(),
			    $vnode->tarfiles(),
			    $vnode->failureaction(),
			    $vnode->routertype() ]);

	#
	# If a subnode, kill the fixed mapping. That was just to
	# tell us the connection. We do not want to overload "fixed"
	# within assign wrapper since its already overloaded.
	#
	if ($issub) {
	    # Must be a parent. Set in the parser, either explicitly, or else
	    # one is created if the user leaves it out.
	    if (!defined($fixed) || $fixed eq "") {
824
		warn("Subnode $vname must be fixed to its parent!\n");
825 826 827 828 829 830 831 832 833
		return -1;
	    }
	    $vnode->_parent($fixed);
	    $vnode->fixed("");
	    undef($fixed);
	}

	# Can fixed really get set to ""?
	if (defined($fixed) && $fixed ne "") {
834
	    # Store the name since we use FIXED_NODES for delay nodes too.
835
	    $self->fixednodes()->{$vname} = $fixed;
836 837 838
	}

	$self->printdb("  $vname type:$type ips:$ips\n");
839
	$self->printdb("         isrem:$isremote isvirt:$isvirt");
840 841 842
	$self->printdb("fixed:$fixed")
	    if (defined($fixed));
	$self->printdb("\n");
843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862
	
	# We need to check the names to make sure they do not clash with
	# our internal delay node names.
	if (($vname =~ /^tbdelay\d+/) ||
	    ($vname =~ /^tbsdelay\d+/)) {
	    print "Warning: $vname is a reserved name. Working around it.\n";
	    my ($num) = ($vname =~ /(\d+)/);
	    $self->delayid($num + 1);
	}

	$self->{'COUNTERS'}->{'simcount'}++
	    if ($issim);
	$self->{'COUNTERS'}->{'remotecount'}++
	    if ($isremote);
	$self->{'COUNTERS'}->{'virtcount'}++
	    if ($isvirt);
	$self->{'COUNTERS'}->{'plabcount'}++
	    if ($isplab);
	$self->{'COUNTERS'}->{'physcount'}++
	    if (!$issim && !$isvirt);
863 864
	$self->{'COUNTERS'}->{'sharedcount'}++
	    if ($isvirt && $vnode->_sharedokay());
865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950

	# stats
	my @iplist  = split(" ", $ips);
	my $ipcount = scalar(@iplist);

	$self->exptstats()->{"maxlinks"} = $ipcount
	    if ($ipcount > $self->exptstats()->{"maxlinks"});
	$self->exptstats()->{"minlinks"} = $ipcount
	    if ($ipcount < $self->exptstats()->{"minlinks"});

	# Take apart the IP list.
	foreach my $ipinfo (@iplist) {
	    my ($port,$ip) = split(":",$ipinfo);
	    
	    $self->{'IPS'}->{"$vname:$port"} = $ip;
	}

	#
	# Map the osname to an OSID now so that we can check max_concurrent.
	# This also avoids the work and *check* later after we have done 90%
	# of assign_wrapper. If no osname was specified, we have to wait and
	# use the default for the type of phys node that assign picks.
	#
	if (defined($osname) && $osname ne "") {
	    my $osinfo = OSinfo->Lookup("$pid,$osname");
	    if (!defined($osinfo)) {
		$osinfo = OSinfo->LookupByName($osname);

		if (!defined($osinfo)) {
		    tberror({cause => 'user', type => 'primary',
			     severity => SEV_ERROR,
			     error => ['invalid_os', undef, $osname, $pid]},
			    "Invalid OS $osname in project $pid!");
		    return -1;
		}
	    }
	    $vnode->_osinfo($osinfo);
	}

	#
	# Add in desires.
	#
	foreach my $desire ($self->virt_desires()->Rows()) {
	    next
		if ($desire->vname() ne $vname);
	    $desires->{$desire->desire()} = $desire->weight();
	}
	$vnode->_desires($desires);

	#
	# And the startloc, but doubt this is used anymore.
	#
	foreach my $startloc ($self->virt_startloc()->Rows()) {
	    if ($startloc->vname() eq $vname) {
		$startloc = $startloc->building();
		last;
	    }
	}
	$vnode->_startloc($startloc);

	# Add to the list.
	$self->{'VNODES'}->{$vname} = $vnode;
    }
    return 0;
}

sub LoadVirtLans($)
{
    my ($self) = @_;

    $self->printdb("Loading virtual lans\n");

    my $pid    = $self->pid();
    my $eid    = $self->eid();
    my $table  = $self->virt_lans();

    foreach my $virt_lan_member ($table->Rows()) {
	my $vlanname = $virt_lan_member->vname();

	# Local wrapper for virt_lan_lan table entry (the "lan").
	my $virtlan = $self->vlans()->{$vlanname};
	if (!defined($virtlan)) {
	    my $virt_lan_lan = $self->virt_lan_lans()->Find($vlanname);
	    $virtlan = libvtop::virt_lan->Create($self, $virt_lan_lan);
	    # Add it to the toplevel list of lans.
	    $self->vlans()->{$vlanname} = $virtlan;
951
	    $virtlan->_accesspoint(undef);
952 953 954 955 956 957 958 959 960
	}

	# Now the local wrapper for the virt_lan table entry (the "member").
	my $vlanmember = libvtop::virt_lan_member->Create($self,
							  $virt_lan_member,
							  $virtlan);

	# Which we add to the member hash for the lan by vnode:vport
	# Note that $vlanmember->member() returns vnode:port.
961
	$virtlan->addmember($vlanmember);
962 963 964 965 966 967 968 969

	# Global map from vnode:port back to the lan object
	$self->memberof()->{$vlanmember->member()} = $virtlan;

	# Other fields we need below
	my $delay          = $vlanmember->delay();
	my $bandwidth      = $vlanmember->bandwidth();
	my $est_bandwidth  = $vlanmember->est_bandwidth();
970
	my $backfill       = $vlanmember->backfill();
971 972 973 974
	my $lossrate       = $vlanmember->lossrate();
	my $rdelay         = $vlanmember->rdelay();
	my $rbandwidth     = $vlanmember->rbandwidth();
	my $rest_bandwidth = $vlanmember->rest_bandwidth();
975
	my $rbackfill      = $vlanmember->rbackfill();
976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028
	my $rlossrate      = $vlanmember->rlossrate();
	my $widearea       = $vlanmember->widearea();
	my $isemulated     = $vlanmember->emulated();
	my $uselinkdelay   = $vlanmember->uselinkdelay();
	my $nobwshaping    = $vlanmember->nobwshaping();
	my $trivial_ok     = $vlanmember->trivial_ok();
	my $protocol       = $vlanmember->protocol();
	my $mustdelay      = $vlanmember->mustdelay();
	my $encap          = $vlanmember->encap_style();
	my $mask           = $vlanmember->mask();

	#
	# So all this stuff is really per-lan state, but an artifact of
	# the original implementation is that it is duplicated in every
	# single member row. So, push the info up a level to make it easy
	# to figure out how each lan is set up.
	#

	# If RED, must insert traffic shapping.
	$virtlan->_mustdelay($mustdelay);
	# User has requested the link/lan be emulated. Not typical.
	$virtlan->_emulated($isemulated);
	# User has requested "endnodeshaping" (dummynet on end nodes).
	$virtlan->_uselinkdelay($uselinkdelay);
        # The nobwshaping flag is used in conjunction with emulated
        # links to turn off actual bw traffic shaping on an emulated
        # link. This allows assign to match the specified bws, but not
        # force them to be such with delay nodes (leaves it up to the
        # user to moderate the bw).
	$virtlan->_nobwshaping($nobwshaping);
	$virtlan->_encapstyle($encap);
	# User has said that colocating is okay. Not typical.
	$virtlan->_trivial_ok($trivial_ok);
	# Link is connected to a remote node, and gets a tunnel.
	$virtlan->_tunnel(0);
	# Netmask for the entire lan.
	$virtlan->_mask($mask);
	$virtlan->_widearea($widearea);
	# Whether all member nodes are simulated
	$virtlan->_allsim(0);
	$virtlan->_protocol($protocol);
	$virtlan->_accesspoint($vlanmember)
	    if ($vlanmember->is_accesspoint());

	if (defined($encap) &&
	    ($encap eq "vtun" || $encap eq "gre" || $encap eq "egre")) {
	    $virtlan->_tunnel(1);
	}

	# Store this stuff as a unit to make it easier to grab later.
	$vlanmember->_delayinfo([ $delay,
				  $bandwidth,
				  $est_bandwidth,
1029
				  $backfill,
1030 1031 1032 1033
				  $lossrate,
				  $rdelay,
				  $rbandwidth,
				  $rest_bandwidth,
1034
				  $rbackfill,
1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096
				  $rlossrate ]);

	#
	# Ditto for the Q stuff, which is not needed until the delay
	# links are created. There are no "r" params either; Queue
	# stuff is handled in just the to-switch direction.
	#
	$vlanmember->_queueinfo([$vlanmember->q_limit(),
				 $vlanmember->q_maxthresh(),
				 $vlanmember->q_minthresh(),
				 $vlanmember->q_weight(),
				 $vlanmember->q_linterm(),
				 $vlanmember->q_qinbytes(),
				 $vlanmember->q_bytes(),
				 $vlanmember->q_meanpsize(),
				 $vlanmember->q_wait(),
				 $vlanmember->q_setbit(),
				 $vlanmember->q_droptail(),
				 $vlanmember->q_red(),
				 $vlanmember->q_gentle() ]);

	#
	# The trace info is stored along with the QUEUEINFO, but its
	# easier if I split it out.
	#
	$vlanmember->_traceinfo([$vlanmember->traced(),
				 $vlanmember->trace_endnode(),
				 $vlanmember->trace_type(),
				 $vlanmember->trace_expr(),
				 $vlanmember->trace_snaplen(),
				 $vlanmember->trace_db() ]);

	#
	# This will get set on a per-member basis when it is determined
	# that the link is getting a delaynode cause its really being
	# shaped, or because it is being traced or monitored.
	#
	$virtlan->shapedmembers()->{"$vlanmember"} = 0;
	$virtlan->_delayed(0);

	#
	# XXX - Whenever a delay node is inserted, port speeds are set to
	#       the next fastest interface type we have, even if they requested
	#       exactly some speed that can be done without a delay node such
	#       as 10Mbs or 100Mbs. This is a simplification. At some point we
	#       might want to force all the ports along the way to 10Mbs, and
	#       have the delay node worry about delay only, and not bandwidth.
	#       That will be harder to to do in this mess. See companion XXX
	#       below where the delays table is initialized. Initially, we set
	#       the speed to 10Mbs, if a delay node is insterted below, it
	#       resets this to 100Mbs.
	#
	my $portbw = $self->getbandwidth($vlanmember, $virtlan, $bandwidth);
	$self->portbw()->{"$vlanmember"} = $portbw;
	
	$self->printdb("  $vlanname $vlanmember portbw:$portbw - ".
		       "$delay $bandwidth $lossrate ".
		       "$rdelay $rbandwidth $rlossrate\n");
    }
    return 0;
}

1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114
#
# Dump the vtype list.
#
sub GenVirtTypes($)
{
    my ($self) = @_;
    my @types  = $self->VirtTypes();
    
    foreach my $vtype (@types) {
	my $name    = $vtype->name();
	my $weight  = $vtype->weight();
	my @members = split(" ", $vtype->members());

	$self->addvclass("$name $weight @members");
    }
    return 0;
}

1115 1116 1117
#
# Dump the virt nodes.
#
1118
sub GenVirtNodes($)
1119 1120 1121 1122 1123 1124
{
    my ($self) = @_;
    my $experiment = $self->experiment();
    my $pid    = $experiment->pid();
    my $eid    = $experiment->eid();

1125 1126
    foreach my $vname (sort(keys(%{ $self->{'VNODES'} }))) {
	my $vnode = $self->vnodes()->{$vname};
1127 1128
	my $type  = $vnode->type();

1129 1130 1131 1132 1133
	# XXX prototyping shared mode.
	if ($type eq "pcvm" && $vnode->_sharedokay()) {
	    $type = "pcshared";
	}

1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184
	my $subnodestr = "";
	if ($vnode->_issubnode()) {
	    my $parent  = $vnode->_parent();
	    $subnodestr = "subnode_of:$parent";
	}
	my $desirestr = "";
	foreach my $desirename (keys(%{ $vnode->_desires() })) {
	    my $weight = $vnode->_desires()->{$desirename};
	    $desirestr .= " "
		if ($desirestr ne "");
	    $desirestr .= "$desirename:" . sprintf("%f",$weight);
	}
	if ($vnode->_isplabnode() && $experiment->cpu_usage()) {
	    # Yuck
	    $desirestr .= " +load:" . (($experiment->cpu_usage() - 1) / 5.0);
	}
	if ($self->updating()) {
	    $desirestr .= " already_reserved:.2";
	}
	if (defined($vnode->_startloc())) {
	    $desirestr .= " area-" . $vnode->_startloc() . ":1";
	}
	# Require that this vnode be placed onto a pnode that supports
	# the OS it is going to run. However, if the OS is one with a
	# 'path' (like an OSKit kernel), we don't have an entry in
	# osidtoimageid for it, and thus we leave it off of the desire list
	if (defined($vnode->_osinfo())) {
	    my $osinfo = $vnode->_osinfo();

	    if (!defined($osinfo->path()) || $osinfo->path() eq "") {
		$desirestr .= " OS-" . $osinfo->osid() . ":1";
	    }
	}

	#
	# Now the type string, which might include some stuff for
	# simnodes that I do not understand. 
	#
	my $typestr = $type;
	if ($vnode->_issimnode()) {
	    my $query_result =
		DBQueryWarn("select nodeweight from virt_simnode_attributes ".
			    "where pid='$pid' and eid='$eid' and ".
			    "      vname='$vname'");
	    if ($query_result && $query_result->numrows) {
		my ($nodeweight) = $query_result->fetchrow_array();
		if ($nodeweight) {
		    $typestr = "$type:$nodeweight";
		}
	    }
	}
1185
	$self->addnode("$vname $typestr $subnodestr $desirestr");
1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208
    }

    #
    # Now that the node list is out, set OSID for nodes
    #
    # Huh?
    #
    foreach my $vnode (values(%{ $self->{'VNODES'} })) {
	my $vname  = $vnode->vname();
	my $type   = $vnode->type();
	my $osinfo = $vnode->_osinfo();

	if ($vnode->_issubnode() && $type eq "ixp-bveil" && !defined($osinfo)){
	    my $osinfo = OSinfo->LookupByName("RHL73-IXPHOST");
	    $vnode->_osinfo($osinfo);
	}
    }
    return 0;
}

#
# Print out the fix nodes.
#
1209
sub GenFixNodes($)
1210 1211 1212 1213 1214 1215 1216 1217
{
    my ($self) = @_;

    #
    # Be sure NOT to print out nodes which are no longer in the experiment.
    #
    # XXX This must be done last since we create internal nodes above.
    #
1218
    foreach my $vname (sort(keys(%{ $self->fixednodes() }))) {
1219
	my $fixed = $self->fixednodes()->{$vname};
1220 1221
	
	if ($self->isatoponode($vname) || $self->isadelaynode($vname)) {
1222
	    $self->addfixed("$vname $fixed");
1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241
	}
    }
    return 0;
}

#
# Print out some summary stats.
#
sub PrintSummaryStats($)
{
    my ($self) = @_;

    # Set estimations
    my $minimum_nodes = $self->counters()->{'physcount'} +
	$self->delaynodecount() / $self->options()->{'delay_capacity'};
    my $maximum_nodes = $self->counters()->{'physcount'} +
	$self->delaynodecount();
    $minimum_nodes = POSIX::ceil($minimum_nodes);

1242 1243 1244 1245
    # For the caller.
    $self->counters()->{'minimum_nodes'}  = $minimum_nodes;
    $self->counters()->{'maximum_nodes'}  = $maximum_nodes;

1246 1247
    my $virtnode_count = $self->counters()->{'virtcount'};
    my $simnode_count  = $self->counters()->{'simcount'};
1248 1249
    my $reserved_virtcount = $self->counters()->{'reserved_virtcount'};
    my $reserved_physcount = $self->counters()->{'reserved_physcount'};
1250 1251 1252 1253

    print "Minimum nodes   = $minimum_nodes\n";
    print "Maximum nodes   = $maximum_nodes\n";
    if ($virtnode_count) {
1254
	print "Virtual nodes     = $virtnode_count\n";
1255 1256 1257 1258
    }
    if ($simnode_count) {
	print "Simulated nodes   = $simnode_count\n";
    }
1259 1260 1261 1262 1263 1264
    if ($reserved_virtcount) {
	print "Reserved vnodes   = $reserved_virtcount\n";
    }
    if ($reserved_physcount) {
	print "Reserved pnodes   = $reserved_physcount\n";
    }
1265 1266 1267 1268 1269 1270
    return 0;
}

#
# Dump the virt lans
#
1271
sub GenVirtLans($)
1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283
{
    my ($self) = @_;
    my $experiment = $self->experiment();
    my $pid    = $experiment->pid();
    my $eid    = $experiment->eid();

    my $errors	         = 0;
    my %osdoesveth       = ();
    my %osdoesvlan       = ();
    my %osdoesmlink      = ();
    my %osdoeslinkdelays = ();

1284 1285
    foreach my $vname (sort(keys(%{ $self->{'VLANS'} }))) {
	my $vlan = $self->vlans()->{$vname};
1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330

	# Tunnels are handled elsewhere.
	next
	    if ($vlan->_tunnel());

	my @members = $vlan->memberlist();
	$self->printdb("$vname: " . join(" ",@members) . "\n");
	
	my $simnodes     = 0;
	my $realnodes    = 0;
	my $virtnodes    = 0;
	my $nonvirtnodes = 0;
	my %nodesdo      = ("alias"=>0, "veth"=>0, "vlan"=>0, "ldelay"=>0);
	my $trivial_ok   = 0;
	my $emulated     = $vlan->_emulated();
        my $uselinkdelay = $vlan->_uselinkdelay();
	my $mustdelay    = $vlan->_mustdelay();
	my $nobwshaping  = $vlan->_nobwshaping();
	my $protocol     = $vlan->_protocol();
	my $encap        = $vlan->_encapstyle();

	#
	# Count the types of nodes (simulated, virtual, real, etc.) in this
	# LAN
	#
	foreach my $member (@members) {
	    my $osid;
	    my $virtnode = $member->virt_node();

	    if ($virtnode->_issimnode()) {
		$simnodes++;

		if (defined($virtnode->_osinfo())) {
		    $osid = $virtnode->_osinfo()->osid();
		} else {
		    $osid = "<SIM>";
		}
		# XXX apparently all simnodes can do veths
		if (!exists($osdoesmlink{$osid})) {
		    $osdoesmlink{$osid} = 0;
		    $osdoesveth{$osid} = 1;
		    $osdoesvlan{$osid} = 0;
		    $osdoeslinkdelays{$osid} = 1;
		}
	    } else {
1331
		if ($virtnode->_isvirtnode() && $virtnode->type() ne "pcfed") {
1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405