Node.pm.in 60.9 KB
Newer Older
1
#!/usr/bin/perl -wT
2 3
#
# EMULAB-COPYRIGHT
4
# Copyright (c) 2005-2010 University of Utah and the Flux Group.
5 6 7
# All rights reserved.
#
package Node;
8 9
use strict;
use Exporter;
10 11 12
use SelfLoader ();
use vars qw(@ISA @EXPORT $AUTOLOAD @EXPORT_OK);
@ISA = qw(Exporter SelfLoader);
13
@EXPORT = qw();
14

Leigh B. Stoller's avatar
Leigh B. Stoller committed
15
# Configure variables
16 17 18 19 20
use vars qw($TB $BOSSNODE $WOL $OSSELECT $ISUTAH $CONTROL_NETMASK);
$TB	     = "@prefix@";
$BOSSNODE    = "@BOSSNODE@";
$WOL         = "$TB/sbin/whol";
$OSSELECT    = "$TB/bin/os_select";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
21
# XXX stinky hack detection
22
$ISUTAH	     = @TBMAINSITE@;
23
# Need this for jail ip assignment.
24
$CONTROL_NETMASK = "@CONTROL_NETMASK@";
25

26
use libdb;
27
use libtestbed;
28
use event;
29
use English;
30
use Socket;
31 32
use Data::Dumper;
use overload ('""' => 'Stringify');
33 34 35

use vars qw($NODEROLE_TESTNODE $MFS_INITIAL $STATE_INITIAL
	    %nodes @cleantables);
36

37 38 39 40 41 42
# Exported defs
$NODEROLE_TESTNODE	= 'testnode';

# Why, why, why?
@EXPORT_OK = qw($NODEROLE_TESTNODE);

43
# Cache of instances to avoid regenerating them.
44
%nodes = ();
45 46 47 48 49 50 51

# Little helper and debug function.
sub mysystem($)
{
    my ($command) = @_;

    print STDERR "Running '$command'\n"
52
	if (0);
53 54
    return system($command);
}
55

56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
# To avoid writting out all the methods.
AUTOLOAD {
#    print STDERR "$AUTOLOAD $_[0]\n";

    if (!ref($_[0])) {
	$SelfLoader::AUTOLOAD = $AUTOLOAD;
	return SelfLoader::AUTOLOAD(@_);
    }
    my $self  = $_[0];
    my $name  = $AUTOLOAD;
    $name =~ s/.*://;   # strip fully-qualified portion

    # A DB row proxy method call.
    if (exists($self->{'DBROW'}->{$name})) {
	return $self->{'DBROW'}->{$name};
    }

    # The method is possibly for a SelfLoader method after __DATA__
    # Or it is for a local storage slot.
    if ($name =~ /^_.*$/) {
	if (scalar(@_) == 2) {
	    return $self->{'HASH'}->{$name} = $_[1];
	}
	elsif (exists($self->{'HASH'}->{$name})) {
	    return $self->{'HASH'}->{$name};
	}
    }
    $SelfLoader::AUTOLOAD = $AUTOLOAD;
    my $ref = \&SelfLoader::AUTOLOAD;
    goto &$ref;
}

#
# The list of table we have to clear if anything goes wrong when
# creating a new node.
# 
@cleantables = ("nodes", "node_hostkeys", "node_status",
		"node_activity", "node_utilization",
		"node_auxtypes", "reserved", "widearea_nodeinfo");


97
#
98
# Lookup a (physical) node and create a class instance to return.
99
#
100 101
sub Lookup($$)
{
102 103 104
    my ($class, $token) = @_;
    my $nodeid;

105
    if ($token =~ /^\w{8}\-\w{4}\-\w{4}\-\w{4}\-\w{12}$/) {
106 107 108 109 110 111 112 113 114 115 116 117 118 119
	my $query_result =
	    DBQueryWarn("select node_id from nodes ".
			"where uuid='$token'");
	    return undef
		if (! $query_result || !$query_result->numrows);

	    ($nodeid) = $query_result->fetchrow_array();
    }
    elsif ($token =~ /^[-\w]+$/) {
	$nodeid = $token;
    }
    else {
	return undef;
    }
120

121 122 123
    # Look in cache first
    return $nodes{$nodeid}
        if (exists($nodes{$nodeid}));
124 125

    my $query_result =
126 127
	DBQueryWarn("select * from nodes as n ".
		    "where n.node_id='$nodeid'");
128

129 130 131 132 133 134 135
    return undef
	if (!$query_result || !$query_result->numrows);

    my $self            = {};
    $self->{"DBROW"}    = $query_result->fetchrow_hashref();
    $self->{"RSRV"}     = undef;
    $self->{"TYPEINFO"} = undef;
136
    $self->{"ATTRS"}    = undef;
137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157
    $self->{"IFACES"}   = undef;
    $self->{"HASH"}     = {};
    bless($self, $class);

    # Add to cache.
    $nodes{$nodeid} = $self;
    return $self;
}

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

    $self->{"DBROW"}    = undef;
    $self->{"RSRV"}     = undef;
    $self->{"TYPEINFO"} = undef;
    $self->{"ATTRS"}    = undef;
    $self->{"IFACES"}   = undef;
    $self->{"HASH"}     = undef;
}

158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181
#
# Stringify for output.
#
sub Stringify($)
{
    my ($self) = @_;
    
    my $nodeid = $self->node_id();

    return "[Node: $nodeid]";
}

# Local lookup for an Experiment, to avoid dragging in the module.
sub LocalExpLookup(@)
{
    require Experiment;

    return Experiment->Lookup(@_);
}

# _Always_ make sure that this 1 is at the end of the file...
1;
__DATA__

182 183 184 185 186 187 188 189 190 191 192 193 194 195
#
# Create a fake object, as for the mapper (assign_wrapper) during debugging.
#
sub MakeFake($$$$)
{
    my ($class, $nodeid, $dbrow, $rsrvrow) = @_;

    my $self            = {};
    $self->{"DBROW"}    = $dbrow;
    $self->{"RSRV"}     = $rsrvrow;
    $self->{"TYPEINFO"} = undef;
    $self->{"ATTRS"}    = undef;
    $self->{"IFACES"}   = undef;
    $self->{"HASH"}     = {};
196 197 198
    bless($self, $class);

    # Add to cache.
199 200 201
    $nodes{$nodeid} = $self;
    return $self;
}
202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238

#
# Bulk lookup of nodes reserved to an experiment. More efficient.
#
sub BulkLookup($$$)
{
    my ($class, $experiment, $pref) = @_;
    my %nodelist = ();
    my $exptidx  = $experiment->idx();

    my $query_result =
	DBQueryWarn("select n.* from reserved as r ".
		    "left join nodes as n on n.node_id=r.node_id ".
		    "where r.exptidx=$exptidx");

    return -1
	if (!defined($query_result));

    while (my $row = $query_result->fetchrow_hashref()) {
	my $nodeid = $row->{'node_id'};
	my $node;

	if (exists($nodes{$nodeid})) {
	    $node = $nodes{$nodeid};
	    $node->{"DBROW"} = $row;
	}
	else {
	    $node               = {};
	    $node->{"DBROW"}    = $row;
	    bless($node, $class);

	    # Add to cache.
	    $nodes{$nodeid} = $node;
	}
	$node->{"RSRV"}     = undef;
	$node->{"TYPEINFO"} = undef;
	$node->{"ATTRS"}    = undef;
239 240
	$node->{"IFACES"}   = undef;
	$node->{"HASH"}     = {};
241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281
	
	$nodelist{$nodeid} = $node;
    }

    $query_result =
	DBQueryWarn("select r.* from reserved as r ".
		    "where r.exptidx=$exptidx");
    return -1
	if (!defined($query_result));
    
    while (my $row = $query_result->fetchrow_hashref()) {
	my $nodeid = $row->{'node_id'};
	my $node   = $nodelist{$nodeid};

	return -1
	    if (!defined($node));

	$node->{"RSRV"} = $row;
    }

    $query_result =
	DBQueryWarn("select a.* from reserved as r ".
		    "left join node_attributes as a on a.node_id=r.node_id ".
		    "where r.exptidx=$exptidx and a.node_id is not null");
    return -1
	if (!defined($query_result));
    
    while (my $row = $query_result->fetchrow_hashref()) {
	my $nodeid = $row->{'node_id'};
	my $key    = $row->{'attrkey'};
	my $node   = $nodelist{$nodeid};

	return -1
	    if (!defined($node));

	$node->{"ATTRS"}->{$key} = $row;
    }
	
    @$pref = values(%nodelist);
    return 0;
}
282

283 284 285 286 287
sub Create($$$$)
{
    my ($class, $node_id, $experiment, $argref) = @_;
    my ($control_iface,$virtnode_capacity,$adminmfs,$adminmfs_osid);
    my ($priority, $osid, $opmode, $state);
288 289 290 291 292 293 294 295 296
    require OSinfo;
    require NodeType;

    # Defaults. Leave these here to avoid startup costs of libdb.
    #
    # MFS to boot the nodes into initially
    my $MFS_INITIAL   = TB_OSID_FREEBSD_MFS();
    # Initial event system state to put the nodes into
    my $STATE_INITIAL = TBDB_NODESTATE_SHUTDOWN();
297 298 299

    my $type = $argref->{'type'};
    my $role = $argref->{'role'};
300 301 302 303 304 305 306 307 308 309 310 311 312
    my $uuid;

    if (exists($argref->{'uuid'})) {
	$uuid = $argref->{'uuid'};
    }
    else {
	$uuid = NewUUID();
	if (!defined($uuid)) {
	    print STDERR "Could not generate a UUID!\n";
	    return undef;
	}
    }
    $uuid = DBQuoteSpecial($uuid);
313 314 315 316 317 318 319

    my $typeinfo = NodeType->Lookup($type);
    return undef
	if (!defined($typeinfo));

    my $isremote = $typeinfo->isremotenode();

320 321 322 323 324
    if ($role eq "testnode") {
	if ($typeinfo->virtnode_capacity(\$virtnode_capacity)) {
	    print STDERR "*** No virtnode_capacity for $type! Using zero.\n";
	    $virtnode_capacity = 0;
	}
325 326 327 328 329 330
	if ($typeinfo->isswitch()) {
	    $osid   = "NULL";
	    $opmode = "ALWAYSUP";
	}
	elsif ($isremote) {
	    $osid   = "NULL";
331 332 333 334 335 336 337 338 339 340 341 342 343 344
	    $opmode = "";

	    if (defined($typeinfo->default_osid())) {
		$osid = $typeinfo->default_osid();
		
		my $osinfo = OSinfo->Lookup($osid);
		if (!defined($osinfo)) {
		    print STDERR
			"*** Could not find OSinfo object for $osid!\n";
		    return undef;
		}
		$osid   = $osinfo->osid();
		$opmode = $osinfo->op_mode();
	    }
345 346
	}
	else {
347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364
	    if ($typeinfo->adminmfs_osid(\$adminmfs_osid)) {
		print STDERR "*** No adminmfs osid for $type!\n";
		return undef;
	    }
	    # Find object for the adminfs.
	    if (defined($adminmfs_osid)) {
		$adminmfs = OSinfo->Lookup($adminmfs_osid);
	    }
	    else {
		$adminmfs = OSinfo->Lookup(TBOPSPID(), $MFS_INITIAL);
	    }
	    if (!defined($adminmfs)) {
		print STDERR
		    "*** Could not find OSinfo object for adminmfs!\n";
		return undef;
	    }
	    $osid   = $adminmfs->osid();
	    $opmode = $adminmfs->op_mode();
365
	}
366 367
    }
    else {
368
	$osid   = "NULL";
369
	$opmode = "";
370 371
    }
    $state  = $STATE_INITIAL;
372 373 374 375

    #
    # Lock the tables to prevent concurrent creation
    #
376 377 378 379 380
    DBQueryWarn("lock tables nodes write, widearea_nodeinfo write, ".
		"node_hostkeys write, node_status write, ".
		"node_utilization write, ".
		"node_activity write, reserved write, node_auxtypes write")
	or return undef;
381

382 383 384 385 386 387 388 389 390
    #
    # Make up a priority (just used for sorting)
    #
    if ($node_id =~ /^(.*\D)(\d+)$/) {
	$priority = $2;
    }
    else {
	$priority = 1;
    }
391

392 393 394 395 396 397 398 399 400 401 402
    #
    # See if we have a record; if we do, we can stop now and get the
    # existing record.
    #
    my $query_result =
	DBQueryWarn("select node_id from nodes where node_id='$node_id'");
    if ($query_result->numrows) {
	DBQueryWarn("unlock tables");
	return Node->Lookup($node_id);
    }

403 404 405 406 407
    if (!DBQueryWarn("insert into nodes set ".
		     "  node_id='$node_id', type='$type', " .
		     "  phys_nodeid='$node_id', role='$role', ".
		     "  priority=$priority, " .
		     "  eventstate='$state', op_mode='$opmode', " .
408
		     "  def_boot_osid=$osid, " .
409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429
		     "  inception=now(), uuid=$uuid, ".
		     "  state_timestamp=unix_timestamp(NOW()), " .
		     "  op_mode_timestamp=unix_timestamp(NOW())")) {
	DBQueryWarn("unlock tables");
	return undef;
    }
    if ($isremote) {
	my $hostname = $argref->{'hostname'};
	my $external = $argref->{'external_node_id'};
	my $IP       = $argref->{'IP'};
	    
	if (!DBQueryWarn("replace into widearea_nodeinfo ".
			 " (node_id, contact_uid, contact_idx, hostname," .
			 "  external_node_id, IP) ".
			 " values ('$node_id', 'nobody', '0', ".
			 "         '$hostname', '$external', '$IP')")) {
	    DBQueryWarn("delete from nodes where node_id='$node_id'");
	    DBQueryWarn("unlock tables");
	    return undef;
	}
    }
430

431 432 433 434
    if ($role eq "testnode") {
	DBQueryWarn("insert into node_hostkeys (node_id) ".
		    "values ('$node_id')")
	    or goto bad;
435
	
436 437 438 439
	DBQueryWarn("insert into node_status ".
		    "(node_id, status, status_timestamp) ".
		    "values ('$node_id', 'down', now()) ")
	    or goto bad;
440
    
441 442 443
	DBQueryWarn("insert into node_activity ".
		    "(node_id) values ('$node_id')")
	    or goto bad;
444
	
445 446 447 448
	DBQueryWarn("insert into node_utilization ".
		    "(node_id) values ('$node_id')")
	    or goto bad;
    }
449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469

    if (defined($experiment)) {
	my $exptidx = $experiment->idx();
	my $pid     = $experiment->pid();
	my $eid     = $experiment->eid();

	# Reserve node to hold it from being messed with.
	print STDERR
	    "*** Reserving new node $node_id to $pid/$eid\n";

	DBQueryWarn("insert into reserved ".
		    "(node_id, exptidx, pid, eid, rsrv_time, vname) ".
		    "values ('$node_id', $exptidx, ".
		    "        '$pid', '$eid', now(), '$node_id')")
	    or goto bad;
    }

    #
    # Add vnode counts.
    #
    if ($role eq $Node::NODEROLE_TESTNODE && $virtnode_capacity) {
470 471 472 473
	my $vtype;
	
	if (exists($argref->{'vtype'})) {
	    $vtype = $argref->{'vtype'};
474
	}
475 476 477 478 479 480 481
	else  {
	    $vtype = $type;
	    if (!($vtype =~ s/pc/pcvm/)) {
		$vtype = "$vtype-vm";
	    }
	}
	
482 483 484 485
	DBQueryWarn("insert into node_auxtypes set node_id='$node_id', " .
		    "type='$vtype', count=$virtnode_capacity")
	    or goto bad;
    }
486
    DBQueryWarn("unlock tables");
487 488 489 490 491 492
    return Node->Lookup($node_id);
    
  bad:
    foreach my $table (@cleantables) {
	DBQueryWarn("delete from $table where node_id='$node_id'");
    }
493
    DBQueryWarn("unlock tables");
494 495 496
    return undef;
}

497 498 499 500 501 502 503 504 505 506 507 508 509 510
#
# Only use this for Create() errors.
#
sub Delete($)
{
    my ($self)  = @_;
    my $node_id = $self->node_id();

    foreach my $table (@cleantables) {
	DBQueryWarn("delete from $table where node_id='$node_id'");
    }
    return 0;
}

511
#
512
# Refresh a class instance by reloading from the DB.
513
#
514
sub Refresh($)
515
{
516 517 518 519
    my ($self) = @_;

    return -1
	if (! ref($self));
520

521
    my $nodeid = $self->node_id();
522

523 524 525 526 527 528 529 530 531 532 533
    my $query_result =
	DBQueryWarn("select * from nodes as n ".
		    "where n.node_id='$nodeid'");

    return -1
	if (!$query_result || !$query_result->numrows);

    $self->{"DBROW"}  = $query_result->fetchrow_hashref();
    # Force reload
    $self->{"RSRV"}     = undef;
    $self->{"TYPEINFO"} = undef;
534
    $self->{"ATTRS"}    = undef;
535
    $self->{"IFACES"}   = undef;
536
    return 0;
537 538
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554
#
# Flush from our little cache, as for the expire daemon.
#
sub Flush($)
{
    my ($self) = @_;

    delete($nodes{$self->node_id()});
}
sub FlushAll($)
{
    my ($class) = @_;
    
    %nodes = ();
}

555 556 557 558 559 560 561 562 563
#
# Check permissions. Allow for either uid or a user ref until all code
# updated.
#
sub AccessCheck($$$)
{
    my ($self, $user, $access_type) = @_;

    # Must be a real reference. 
564
    return 0
565 566
	if (! ref($self));

567 568
    if ($access_type < TB_NODEACCESS_MIN ||
	$access_type > TB_NODEACCESS_MAX) {
569
	print STDERR "*** Invalid access type: $access_type!\n";
570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588
	return 0;
    }
    # Admins do whatever they want.
    return 1
	if ($user->IsAdmin());

    my $mintrust;

    if ($access_type == TB_NODEACCESS_READINFO) {
	$mintrust = PROJMEMBERTRUST_USER;
    }
    else {
	$mintrust = PROJMEMBERTRUST_LOCALROOT;
    }

    # Get the reservation for this node. Only admins can mess with free nodes.
    my $experiment = $self->Reservation();
    return 0
	if (!defined($experiment));
589

590 591 592 593 594 595 596 597 598 599 600 601 602 603
    my $group = $experiment->GetGroup();
    return 0
	if (!defined($group));
    my $project = $experiment->GetProject();
    return 0
	if (!defined($project));

    #
    # Either proper permission in the group, or group_root in the
    # project. This lets group_roots muck with other people's
    # nodes, including those in groups they do not belong to.
    #
    return TBMinTrust($group->Trust($user), $mintrust) ||
	TBMinTrust($project->Trust($user), PROJMEMBERTRUST_GROUPROOT);
604 605
}

606
#
607 608 609
# Lazily load the reservation info.
#
sub IsReserved($)
610
{
611
    my ($self) = @_;
612

Leigh B. Stoller's avatar
Leigh B. Stoller committed
613
    return 0
614
	if (! ref($self));
615

616 617 618 619 620 621
    if (! defined($self->{"RSRV"})) {
	my $nodeid = $self->node_id();
	
	my $query_result =
	    DBQueryWarn("select * from reserved " .
			"where node_id='$nodeid'");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
622
	return 0
623 624 625 626 627 628 629 630
	    if (!$query_result);
	return 0
	    if (!$query_result->numrows);

	$self->{"RSRV"} = $query_result->fetchrow_hashref();
	return 1;
    }
    return 1;
631 632
}

633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672

sub GetSubboss($$)
{
    my ($self, $service, $subboss_id) = @_;

    return 0
	if (! ref($self));

    my $ref;

    if (defined $self->{"SUBBOSSES"}) {
	my $ref = $self->{"SUBBOSSES"}->{$service};
    }

    if (!defined $ref) {
	my $nodeid = $self->node_id();

	my $query_result =
	    DBQueryWarn("select * from subbosses " .
			"where node_id='$nodeid' and " .
			"service = '$service'");

	return 0
	    if (!$query_result);
	return 0
	    if (!$query_result->numrows);

	if (!defined($self->{"SUBBOSSES"})) {
	    $self->{"SUBBOSSES"} = {};
	}

	$ref = $self->{"SUBBOSSES"}->{$service} =
	    $query_result->fetchrow_hashref();
    }

    $$subboss_id = $ref->{'subboss_id'};

    return 0;
}

673 674 675 676 677 678 679 680 681 682 683
#
# Flush the reserve info so it reloads.
#
sub FlushReserved($)
{
    my ($self) = @_;

    $self->{"RSRV"} = undef;
    return 0;
}

684 685 686 687 688 689 690 691 692 693 694 695 696
#
# Is node up.
#
sub IsUp($)
{
    my ($self) = @_;

    return 0
	if (! ref($self));

    return $self->eventstate() eq TBDB_NODESTATE_ISUP;
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716
#
# Determine if a node can be allocated to a project.
#
sub NodeAllocCheck($$)
{
    my ($self, $pid) = @_;

    # Must be a real reference. 
    return 0
	if (! ref($self));

    my $node_id = $self->node_id();

    #
    # Hmm. The point of this join is to find rows in the permissions table
    # with the corresponding type of the node. If no rows come back, its
    # a non-existent node! If the values are NULL, then there are no rows
    # with that type/class, and thus the type/class is free to be allocated
    # by anyone. Otherwise we get the list of projects that are allowed,
    # and so we have to look at those.
717 718 719
    # Note: nodetypeXpid_permissions has the pid_idx in addition to the pid -
    # presumably, the Right Thing would be to use that, but this function
    # is only passed the pid right now.
Leigh B. Stoller's avatar
Leigh B. Stoller committed
720 721
    #
    my $query_result =
722
	DBQueryFatal("select distinct p.type, p.pid_idx from nodes as n ".
Leigh B. Stoller's avatar
Leigh B. Stoller committed
723 724 725 726 727 728 729 730 731
		     "left join node_types as nt on n.type=nt.type ".
		     "left join nodetypeXpid_permissions as p on ".
		     "     (p.type=nt.type or p.type=nt.class) ".
		     "where node_id='$node_id'");

    if (!$query_result->numrows) {
	print STDERR "NodeAllocCheck: No such node $node_id!\n";
	return 0;
    }
732
    my ($ptype,$pid_idx) = $query_result->fetchrow_array();
Leigh B. Stoller's avatar
Leigh B. Stoller committed
733 734

    # No rows, or a pid match.
735
    if (!defined($ptype) || $pid_idx eq $pid->pid_idx()) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
736 737 738 739
	return 1;
    }

    # Okay, must be rows in the permissions table. Check each pid for a match.
740 741
    while (my ($ptype,$pid_idx) = $query_result->fetchrow_array()) {
	if ($pid_idx eq $pid->pid_idx()) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
742 743 744 745 746 747
	    return 1;
	}
    }
    return 0;
}

748 749 750 751 752 753 754 755
# Naming confusion.
sub AllocCheck($$)
{
    my ($self, $pid) = @_;

    return $self->NodeAllocCheck($pid);
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796
#
# Set alloc state for a node.
#
sub SetAllocState($$)
{
    my ($self, $state) = @_;

    return -1
	if (! (ref($self)));
    
    my $now = time();
    my $node_id = $self->node_id();
    
    DBQueryWarn("update nodes set allocstate='$state', " .
		"    allocstate_timestamp=$now where node_id='$node_id'")
	or return -1;

    return Refresh($self);
}

#
# Get alloc state for a node.
#
sub GetAllocState($$)
{
    my ($self, $pref) = @_;

    return -1
	if (! (ref($self) && ref($pref)));
    
    my $allocstate = $self->allocstate();
    
    if (defined($allocstate)) {
	$$pref = $allocstate;
    }
    else {
	$$pref = TBDB_ALLOCSTATE_UNKNOWN;
    }
    return 0;
}

797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813
#
# We do this cause we always want to go to the DB.
#
sub GetEventState($$)
{
    my ($self, $pstate) = @_;
    my $node_id = $self->node_id();

    my $query_result =
	DBQueryWarn("select eventstate from nodes where node_id='$node_id'");
    return -1
	if (!$query_result || !$query_result->numrows);

    my ($state) = $query_result->fetchrow_array();
    $state = TBDB_NODESTATE_UNKNOWN
	if (!defined($state));

814
    $self->{'DBROW'}->{'eventstate'} = $state
815 816 817 818 819
	if (defined($self->{'DBROW'}));
    $$pstate = $state;
    return 0;
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
820 821 822 823 824 825 826 827 828 829 830 831 832 833 834
#
# Equality test for two experiments.
# Not strictly necessary in perl, but good form.
#
sub SameExperiment($$)
{
    my ($self, $other) = @_;

    # Must be a real reference. 
    return -1
	if (! (ref($self) && ref($other)));

    return $self->idx() == $other->idx();
}

835 836 837 838 839 840 841
#
# Get the experiment this node is reserved too, or null.
#
sub Reservation($)
{
    my ($self) = @_;

842
    return undef
843 844
	if (! ref($self));

845
    return undef
846 847
	if (! $self->IsReserved());

848
    return LocalExpLookup($self->{"RSRV"}->{'exptidx'});
Leigh B. Stoller's avatar
Leigh B. Stoller committed
849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888
}

#
# Return just the ID of the reservation experiment. Avoids locking problems
# within nalloc and nfree. 
#
sub ReservationID($)
{
    my ($self) = @_;

    return undef
	if (! ref($self));

    return undef
	if (! $self->IsReserved());

    return $self->{"RSRV"}->{'exptidx'};
}

#
# Get the NEXT experiment this node is reserved too, or null.
#
sub NextReservation($)
{
    my ($self) = @_;

    return undef
	if (! ref($self));

    my $node_id = $self->node_id();
    
    my $query_result =
	DBQueryFatal("select pid,eid from next_reserve ".
		     "where node_id='$node_id'");

    return undef
	if (!$query_result || !$query_result->numrows);

    my ($pid,$eid) = $query_result->fetchrow_array();

889
    return LocalExpLookup($pid, $eid);
Leigh B. Stoller's avatar
Leigh B. Stoller committed
890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910
}

#
# Move a node from its experiment to another. Must treat oldreserved special.
#
sub MoveReservation($$)
{
    my ($self, $newexperiment) = @_;
    
    return -1
	if (! (ref($self) && ref($newexperiment)));

    my $node_id    = $self->node_id();
    my $newpid     = $newexperiment->pid();
    my $neweid     = $newexperiment->eid();
    my $newidx     = $newexperiment->idx();
    my $oldpid     = "";
    my $oldeid     = "";
    my $oldidx     = 0;
    
    # Must remember old reservation when moving to new oldreserved.
911
    if ($newpid eq OLDRESERVED_PID() && $neweid eq OLDRESERVED_EID()) {	
Leigh B. Stoller's avatar
Leigh B. Stoller committed
912 913 914 915 916 917 918 919 920 921 922
        #
	# Cannot do an experiment Lookup cause reserved table may be locked.
	# IsReserved() will load the reserved table entry only.
	#
	return -1
	    if (!$self->IsReserved());
	
	$oldpid     = $self->{"RSRV"}->{'pid'};
	$oldeid     = $self->{"RSRV"}->{'eid'};
	$oldidx     = $self->{"RSRV"}->{'exptidx'};
    }
923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939
    my $sets = "rsrv_time=now(), ".
	" vname='$node_id', ".
	" exptidx=$newidx, ".
	" pid='$newpid', ".
	" eid='$neweid', ".
	" old_exptidx=$oldidx, ".
	" old_pid='$oldpid', ".
	" old_eid='$oldeid' ";

    if ($self->IsReserved()) {
	DBQueryWarn("update reserved set $sets where node_id='$node_id'")
	    or return -1;
    }
    else {
	DBQueryWarn("insert into reserved set $sets, node_id='$node_id'")
	    or return -1;
    }
940 941 942

    # Force this to reload.
    $self->{"RSRV"} = undef;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959
    return 0;
}

#
# Change reservation table for a node.
#
sub ModifyReservation($$)
{
    my ($self, $argref) = @_;
    
    return -1
	if (! (ref($self) && ref($argref)));

    return -1
	if (! $self->IsReserved());
    
    my $node_id = $self->node_id();
960 961 962
    my @sets    = ();
    foreach my $key (keys(%{$argref})) {
	my $val = $argref->{$key};
Leigh B. Stoller's avatar
Leigh B. Stoller committed
963

964 965
	push(@sets, "$key=" . ("$val" eq "NULL" ? "NULL" : "'$val'"));
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
966

967
    my $query = "update reserved set ".	join(",", @sets);
Leigh B. Stoller's avatar
Leigh B. Stoller committed
968 969 970 971 972
    $query .= " where node_id='$node_id'";

    return -1
	if (! DBQueryWarn($query));

973 974 975 976 977 978
    foreach my $key (keys(%{$argref})) {
	my $val = $argref->{$key};
	
	$self->{'DBROW'}->{$key} = $val;
    }
    return 0;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
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
}

#
# Map nodeid to its pid/eid in the oldreserved holding reservation
#
sub OldReservation($)
{
    my ($self) = @_;

    return undef
	if (! ref($self));

    my $nodeid          = $self->node_id();
    my $oldreserved_pid = OLDRESERVED_PID;
    my $oldreserved_eid = OLDRESERVED_EID;
    
    my $query_result =
	DBQueryWarn("select old_pid,old_eid from reserved ".
		    "where node_id='$nodeid' and pid='$oldreserved_pid' ".
		    "and eid='$oldreserved_eid'");

    return undef
	if (! $query_result || !$query_result->num_rows);

    my ($pid,$eid) = $query_result->fetchrow_array();
    
1005
    return LocalExpLookup($pid, $eid);
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034
}

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

    return undef
	if (! ref($self));

    my $nodeid          = $self->node_id();
    my $oldreserved_pid = OLDRESERVED_PID;
    my $oldreserved_eid = OLDRESERVED_EID;
    
    my $query_result =
	DBQueryWarn("select old_exptidx from reserved ".
		    "where node_id='$nodeid' and pid='$oldreserved_pid' ".
		    "and eid='$oldreserved_eid'");

    return undef
	if (! $query_result || !$query_result->num_rows);

    my ($idx) = $query_result->fetchrow_array();
    
    return $idx;
}

#
# Return the tip server (and tipname) for a node.
#
1035
sub TipServer($$;$$$)
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1036
{
1037
    my ($self, $pserver, $ptipname, $pportnum, $pkeydata) = @_;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048

    return -1
	if (! ref($self));

    $$pserver  = undef;
    $$ptipname = undef
	if (defined($ptipname));

    my $nodeid = $self->node_id();
	
    my $query_result =
1049
	DBQueryWarn("select server,tipname,portnum,keydata from tiplines " .
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1050 1051 1052 1053 1054 1055 1056
		    "where node_id='$nodeid'");
    return -1
	if (!$query_result);
    
    return 0
	if (!$query_result->numrows);

1057
    my ($server,$tipname,$portnum,$keydata) = $query_result->fetchrow_array();
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1058 1059 1060
    $$pserver  = $server;
    $$ptipname = $tipname
	if (defined($ptipname));
1061 1062 1063 1064
    $$pkeydata = $keydata
	if (defined($pkeydata));
    $$pportnum = $portnum
	if (defined($pportnum));
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1065 1066

    return 0;
1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084
}

#
# Get the raw reserved table info and return it, or null if no reservation
#
sub ReservedTableEntry($)
{
    my ($self) = @_;

    return undef
	if (! ref($self));

    return undef
	if (! $self->IsReserved());

    return $self->{"RSRV"};
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
1085 1086 1087 1088 1089 1090 1091 1092 1093 1094
#
# Return a list of virtual nodes on the given physical node.
#
sub VirtualNodes($$)
{
    my ($self, $plist) = @_;

    return -1
	if (! ref($self));

1095 1096
    @$plist         = ();

Leigh B. Stoller's avatar
Leigh B. Stoller committed
1097
    my $reservation = $self->Reservation();
1098 1099 1100
    return 0
	if (!defined($reservation));

Leigh B. Stoller's avatar
Leigh B. Stoller committed
1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128
    my $node_id     = $self->node_id();
    my $exptidx     = $reservation->idx();
    my @result      = ();

    my $query_result = 
	DBQueryWarn("select r.node_id from reserved as r ".
		    "left join nodes as n ".
		    "on r.node_id=n.node_id ".
		    "where n.phys_nodeid='$node_id' and ".
		    "      n.node_id!=n.phys_nodeid and exptidx='$exptidx'");

    return -1
	if (!$query_result);
    return 0
	if (!$query_result->numrows);

    while (my ($node_id) = $query_result->fetchrow_array()) {
	my $node = Node->Lookup($node_id);
	if (!defined($node)) {
	    print STDERR "*** VirtualNodes: no such virtual node $node_id!\n";
	    return -1;
	}
	push(@result, $node);
    }
    @$plist = @result;
    return 0;
}

1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149
#
# Does a node have any virtual nodes on it. Table might be locked.
#
sub HasVirtualNodes($)
{
    my ($self) = @_;

    return -1
	if (! ref($self));

    my $node_id = $self->node_id();

    my $query_result = 
	DBQueryWarn("select node_id from nodes ".
		    "where phys_nodeid='$node_id' and node_id!=phys_nodeid");
    return -1
	if (!$query_result);
    
    return $query_result->numrows;
}

1150 1151 1152
#
# Access methods for the reservation.
#
1153
sub L__reservation($$)
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1154
{
1155
    my ($self, $slotname) = @_;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1156 1157 1158 1159 1160

    return undef
	if (! ref($self));
    return undef
	if (! $self->IsReserved());
1161
    return undef
1162
	if (! exists($self->{"RSRV"}->{$slotname}));
1163

1164
    return $self->{"RSRV"}->{$slotname};
1165
}
1166 1167 1168
sub vname($)		{ return L__reservation($_[0], 'vname'); }
sub sharing_mode($)	{ return L__reservation($_[0], 'sharing_mode'); }
sub erole($)		{ return L__reservation($_[0], 'erole'); }
1169
sub external_resource_index($) {
1170
    return L__reservation($_[0], 'external_resource_index'); }
1171
sub external_resource_id($) {
1172
    return L__reservation($_[0], 'external_resource_id'); }
1173
sub inner_elab_role($) {
1174
    return L__reservation($_[0], 'inner_elab_role'); }
1175

1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 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
#
# Lookup a specific attribute in the node_attributes table, 
#
sub NodeAttribute($$$;$)
{
    my ($self, $attrkey, $pattrvalue, $pattrtype) = @_;
    
    return -1
	if (!ref($self));

    my $node_id = $self->node_id();

    if (!defined($self->{"ATTRS"})) {
	my $query_result =
	    DBQueryWarn("select * from node_attributes ".
			"where node_id='$node_id'");

	return -1
	    if (!defined($query_result));

       	$self->{"ATTRS"} = {};
	while (my $row = $query_result->fetchrow_hashref()) {
	    my $key = $row->{'attrkey'};

	    $self->{"ATTRS"}->{$key} = $row;
	}
    }
    
    if (!exists($self->{"ATTRS"}->{$attrkey})) {
	$$pattrvalue = undef;
	return 0;
    }
    my $ref = $self->{"ATTRS"}->{$attrkey};

    $$pattrvalue = $ref->{'attrvalue'};
    $$pattrtype  = $ref->{'attrtype'}
        if (defined($pattrtype));

    return 0;
}

1217 1218 1219 1220 1221
#
# Return type info. We cache this in the instance since node_type stuff
# does not change much.
#
sub NodeTypeInfo($)
1222
{
1223
    my ($self) = @_;
1224 1225
    require NodeType;
    
1226
    return undef
1227
	if (! ref($self));
1228

1229 1230 1231 1232 1233 1234 1235 1236 1237 1238
    return $self->{"TYPEINFO"}
        if (defined($self->{"TYPEINFO"}));

    my $type = $self->type();
    my $nodetype = NodeType->Lookup($type);
    
    $self->{"TYPEINFO"} = $nodetype
	if (defined($nodetype));
    
    return $nodetype;
1239 1240
}

1241 1242 1243 1244
#
# Lookup a specific attribute in the nodetype info. 
#
sub NodeTypeAttribute($$$;$)
1245
{
1246 1247 1248 1249
    my ($self, $attrkey, $pattrvalue, $pattrtype) = @_;
    
    return -1
	if (!ref($self));
1250

1251
    my $typeinfo = $self->NodeTypeInfo();
1252

1253 1254
    return -1
	if (!defined($typeinfo));
1255

1256
    return $typeinfo->GetAttribute($attrkey, $pattrvalue, $pattrtype);
1257 1258
}

1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271
#
# Shortcuts to "common" type information.
# Later these might be overriden by node attributes.
#
sub class($)          { return NodeTypeInfo($_[0])->class(); }
sub isvirtnode($)     { return NodeTypeInfo($_[0])->isvirtnode(); }
sub isjailed($)       { return NodeTypeInfo($_[0])->isjailed(); }
sub isdynamic($)      { return NodeTypeInfo($_[0])->isdynamic(); }
sub isremotenode($)   { return NodeTypeInfo($_[0])->isremotenode(); }
sub issubnode($)      { return NodeTypeInfo($_[0])->issubnode(); }
sub isplabdslice($)   { return NodeTypeInfo($_[0])->isplabdslice(); }
sub isplabphysnode($) { return NodeTypeInfo($_[0])->isplabphysnode(); }
sub issimnode($)      { return NodeTypeInfo($_[0])->issimnode(); }
1272
sub isgeninode($)     { return NodeTypeInfo($_[0])->isgeninode(); }
1273
sub isfednode($)      { return NodeTypeInfo($_[0])->isfednode(); }
1274
sub isdedicatedremote($) { return NodeTypeInfo($_[0])->isdedicatedremote(); }
1275
sub isswitch($)       { return NodeTypeInfo($_[0])->isswitch(); }
1276

1277
#
1278 1279 1280
# Later has arrived...
# Look for node_attributes settings first and if none, fall back on
# node_type_attributes info.
1281 1282
#
sub default_osid($;$) {
1283 1284 1285
    my ($self,$stuff) = @_;
    my $val = undef;

1286
    if (NodeAttribute($self, "default_osid", \$val) == 0 && defined($val)) {
1287 1288 1289
	return $val;
    }
    return NodeTypeInfo($self)->default_osid($stuff);
1290
}
1291

1292
sub default_imageid($;$) {
1293 1294 1295
    my ($self,$stuff) = @_;
    my $val = undef;

1296
    if (NodeAttribute($self, "default_imageid", \$val) == 0 && defined($val)) {
1297 1298 1299
	return $val;
    }
    return NodeTypeInfo($self)->default_imageid($stuff);
1300
}
1301 1302 1303 1304 1305

#
# And these are the less common attributes, but still common enough to
# warrant shortcuts.
#
1306 1307 1308 1309 1310 1311
sub delay_osid($;$) {
    return NodeTypeInfo($_[0])->delay_osid($_[1]);
}
sub jail_osid($;$) {
    return NodeTypeInfo($_[0])->jail_osid($_[1]);
}
1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328
sub imageable($;$) {
    return NodeTypeInfo($_[0])->imageable($_[1]);
}
sub disksize($;$) {
    return NodeTypeInfo($_[0])->disksize($_[1]);
}
sub disktype($;$) {
    return NodeTypeInfo($_[0])->disktype($_[1]);
}
sub bootdisk_unit($;$) {
    return NodeTypeInfo($_[0])->bootdisk_unit($_[1]);
}
sub control_iface($;$) {
    return NodeTypeInfo($_[0])->control_iface($_[1]);
}
sub rebootable($;$) {
    return NodeTypeInfo($_[0])->rebootable($_[1]);
1329
}
Leigh B Stoller's avatar
Leigh B Stoller committed
1330 1331 1332
sub bios_waittime($;$) {
    return NodeTypeInfo($_[0])->bios_waittime($_[1]);
}
1333

1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345
#
# Perform some updates ...
#
sub Update($$)
{
    my ($self, $argref) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $nodeid = $self->node_id();
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1346
    my @sets   = ();
1347

Leigh B. Stoller's avatar
Leigh B. Stoller committed
1348 1349 1350 1351
    foreach my $key (keys(%{$argref})) {
	my $val = $argref->{$key};

	# Treat NULL special.
1352 1353
	push (@sets, "${key}=" . ($val eq "NULL" ?
				  "NULL" : DBQuoteSpecial($val)));
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1354
    }
1355

Leigh B. Stoller's avatar
Leigh B. Stoller committed
1356 1357
    my $query = "update nodes set " . join(",", @sets) .
	" where node_id='$nodeid'";
1358 1359 1360 1361 1362 1363 1364

    return -1
	if (! DBQueryWarn($query));

    return Refresh($self);
}

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
#
# Insert a Log entry for a node.
#
sub InsertNodeLogEntry($$$$)
{
    my ($self, $user, $type, $message) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    return -1
	if (! grep {$_ eq $type} TB_NODELOGTYPES());

    # XXX Eventually this should change, but it uses non-existent uids!
    my $dbid    = (defined($user) ? $user->uid_idx() : 0);
    my $dbuid   = (defined($user) ? $user->uid()     : "root");
    my $node_id = $self->node_id();
    $message    = DBQuoteSpecial($message);

    return -1
	if (! DBQueryWarn("insert into nodelog values ".
			  "('$node_id', NULL, '$type', '$dbuid', '$dbid', ".
			  " $message, now())"));
    return 0;
}

1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414
#
# Clear a bunch of stuff from the nodes tale entry so boot is clean.
#
sub ClearBootAttributes($)
{
    my ($self) = @_;
    my $node_id = (ref($self) ? $self->node_id() : $self);
    my $allocFreeState = TBDB_ALLOCSTATE_FREE_DIRTY();

    DBQueryWarn("update nodes set startupcmd='',rpms='',deltas='', ".
		"tarballs='',failureaction='fatal', routertype='none', ".
		"def_boot_cmd_line='',next_boot_cmd_line='', ".
		"temp_boot_osid=NULL,next_boot_osid=NULL, ".
		"update_accounts=0,ipport_next=ipport_low,rtabid=0, ".
		"sfshostid=NULL,allocstate='$allocFreeState',boot_errno=0, ".
		"destination_x=NULL,destination_y=NULL, ".
		"destination_orientation=NULL ".
		"where node_id='$node_id'")
	or return -1;

    return 0;
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428
#
# Clear the experimental interfaces for a node.
#
sub ClearInterfaces($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $node_id = $self->node_id();

    DBQueryWarn("update interfaces set IP='',IPaliases=NULL,mask=NULL,".
1429
		"       rtabid='0',vnode_id=NULL,current_speed='0',trunk='0' ".
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1430 1431 1432 1433
		"where node_id='$node_id' and ".
		"  role='" . TBDB_IFACEROLE_EXPERIMENT() . "'")
	or return -1;

1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460
    DBQueryWarn("update interface_state,interfaces set ".
		"       remaining_bandwidth=0 ".
		"where interface_state.node_id=interfaces.node_id and ".
		"      interface_state.iface=interfaces.iface and ".
		"      interfaces.node_id='$node_id' and ".
		"  role='" . TBDB_IFACEROLE_EXPERIMENT() . "'")
	or return -1;

    return 0;
}

#
# Clear the shared bandwidth being used by a (virtual) node.
#
sub ReleaseSharedBandwidth($)
{
    my ($self) = @_;

    # Must be a real reference. 
    return -1
	if (! ref($self));

    my $node_id  = $self->node_id();

    DBQueryWarn("lock tables vinterfaces write, interface_state write")
	or return -1;

1461 1462 1463
    #
    # A negative BW is not reserved yet.
    #
1464 1465 1466 1467 1468
    if (!DBQueryWarn("update interface_state,vinterfaces set ".
		     "     remaining_bandwidth=remaining_bandwidth+bandwidth ".
		     "where interface_state.node_id=vinterfaces.node_id and ".
		     "      interface_state.iface=vinterfaces.iface and ".
		     "      vinterfaces.vnode_id='$node_id' and ".
1469 1470
		     "      vinterfaces.iface is not null and ".
		     "      vinterfaces.bandwidth>0")) {
1471 1472 1473 1474 1475 1476 1477 1478 1479
	DBQueryWarn("unlock tables");
	return -1;
    }
    if (!DBQueryWarn("update vinterfaces set bandwidth=0 ".
		     "where vinterfaces.vnode_id='$node_id'")) {
	DBQueryWarn("unlock tables");
	return -1;
    }
    DBQueryWarn("unlock tables");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1480 1481 1482
    return 0;
}

1483 1484 1485 1486 1487 1488
#
# Look up all interfaces for a node, return list of objects.
#
sub AllInterfaces($$)
{
    my ($self, $pref) = @_;
1489
    require Interface;
1490 1491 1492 1493 1494 1495 1496 1497

    # Must be a real reference. 
    return -1
	if (! (ref($self) && ref($pref)));

    return Interface->LookupAll($self->node_id(), $pref);
}

1498 1499 1500 1501 1502 1503
#
# Load the interfaces for a node, which we then access by name.
#
sub LoadInterfaces($)
{
    my ($self) = @_;
1504
    require Interface;
1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538

    # Must be a real reference. 
    return -1
	if (! ref($self));

    if (!defined($self->{'IFACES'})) {
	my @interfaces;
	return -1
	    if (Interface->LookupAll($self->node_id(), \@interfaces) != 0);

	$self->{'IFACES'} = {};

	foreach my $interface (@interfaces) {
	    $self->{'IFACES'}->{$interface->iface()} = $interface;
	}
    }
    return 0;
}
sub GetInterface($$$)
{
    my ($self, $iface, $pref) = @_;

    # Must be a real reference. 
    return -1
	if (! (ref($self) && ref($pref)));

    $self->LoadInterfaces() == 0
	or return -1;
    return -1
	if (!exists($self->{'IFACES'}->{$iface}));
    $$pref = $self->{'IFACES'}->{$iface};
    return 0;
}

1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579