assign_wrapper.in 43 KB
Newer Older
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
#!/usr/bin/perl -w

# This function as the main assign loop.  It converts the virtual
# topology into a top input including LAN and delay translation.  It
# then snapshots the current testbed physical state and runs assign,
# looping a couple times if assign fails.  When assign successfully
# completes it will interpret the results.  Attempt to match any
# existing portmap entries and then update the delays and vlans table.

# Syntax: assign_wrapper <pid> <eid>

# Caveats:
#  The support for direct and interswitch links has not been testbed much.

# Settings
# delaythresh is the maximum delay in ms above which a delay node is needed.
17
#  (Note that the DB represents delays as floating point numbers)
Leigh B. Stoller's avatar
Leigh B. Stoller committed
18
# maxrun is maximum number of times we run assign.
19
20
# delaywithswitch if 1 will use the switch to delay when possible.  Currently
#  this only works for 10mbit links.
21
$delaythresh = 2;
22
$maxrun = 20;
23
$delaywithswitch=0;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
24

25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
#
# Some handy constants. Speed in Mbits/sec and Kbits/sec units.
# The conversion routine is to make explicit that we operate with two
# different sets of units. One is the topology, which is in Kbps now.
# The second is the physical description, which has been changed to
# Kbps in the DB (and in ptopgen).
#
# Its probably a good idea to leave portbw (current_speed) in Mbs, since
# those numbers are used at the switch and the interfaces, which really
# only think in Mbps.
#
my $S10Mbs  = 10;
my $S100Mbs = 100;
my $S10Kbs  = 10000;
my $S100Kbs = 100000;
sub BWConvert($) {
    #
    # Use this if physical units are in Mbs (used to be).
    #
    #my $bw = $_[0] / 1000;
    
    my $bw = $_[0];
    return $bw;
}

50
$DELAYCAPACITY = @DELAYCAPACITY@;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
51
$TBROOT = "@prefix@";
52
$ENV{'PATH'} = "/usr/bin:$TBROOT/libexec:$TBROOT/sbin:$TBROOT/bin";
53

54
55
use lib '@prefix@/lib';
use libdb;
56
use libtestbed;
57
require exitonwarn;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
58

59
60
61
62
63
#
# Turn off line buffering on output
#
$| = 1;

64
65
66
67
68
69
70
use Getopt::Std;

getopts('v',\%opt);

sub usage {
	print "Usage: $0 [-v] pid eid\n";
	print "		-v enables verbose output\n";
71
	exit(-1);
72
}
Leigh B. Stoller's avatar
Leigh B. Stoller committed
73

74
my $verbose = 0;
75
76
77
78
79
if ($opt{v}) {
	$verbose = 1;
}

if (@ARGV != 2) {
80
	usage();
Leigh B. Stoller's avatar
Leigh B. Stoller committed
81
}
82

Leigh B. Stoller's avatar
Leigh B. Stoller committed
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
($pid,$eid) = @ARGV;

$ptopfile = "$pid-$eid-$$.ptop";

sub printdb {
    if ($verbose) {
	print $_[0];
    }
};

######################################################################
# Step 1 - Setup virtual topology
#
# Here we need to read the virtual topology in from the virt_nodes
# and virt_lans table.  We then need to add delay and lan nodes as
# necessary.
#
# Conversion details:
#   Let L be a LAN with N members.
#   If N == 2 
#      Let N1 be node 1
#      Let N2 be node 2
#      If L is delayed
#         Generate delay node D
#         Link N1 to D
#         Link N2 to D
#      Else
#         Link N1 to N2
#   Else
#      Generate lan node A
#      If L is delayed
#        Foreach node N in L
#           Generate delay node DN
#           Link A to DN
#           Link N to DN
#      Else
#        Foreach node N in L
#           Link N to A
#
# Datastructures:
#  nodes is indexed by virtual node and contains the node type.
124
#  isvirtnode is indexed by virtual node and says whether the node is "virtual"
Leigh B. Stoller's avatar
Leigh B. Stoller committed
125
126
127
128
129
#  nodelans is indexed by virtual node and contains a list of
#    <port>:<lan> that it is connected to.
#  ips is indexed by nodeport and contains the IP addresses.
#  lans is indexed by virtual lan and is a list of nodeport members.
#  delayinfo is indexed by virtual lan:node:port and is a list of delay,
Christopher Alfeld's avatar
Christopher Alfeld committed
130
131
#    bandwidth, lossrate, rdelay, rbandwidth, rlossrate.  Where r* indicates
#    switch->node and the others indicate node->switch.
Leigh B. Stoller's avatar
Leigh B. Stoller committed
132
133
134
#  okbandwidths is indexed by bandwidth and is just a set.
#  lannodes is indexed by physical name is the set of lan nodes.
#  delaynodes is indexed by link name and contains [delay,bw,loss]
135
#  portbw is indexed by virtual nodeport and contains the bandwidth
136
137
138
139
#    of that port. Note that port bandwidth in the interfaces table is
#    left in Mbps units for now. Thats inconsistent, I know. For LANs with
#    other bandwidths the port speed will be 100 and a delay node will
#    be inserted.
140
141
#  fixed_nodes is indexed by virtual node name and points to physical node
#   name.
Christopher Alfeld's avatar
Christopher Alfeld committed
142
#  vtypes is indexed by vtype name and is a list of {weight types}.
Leigh B. Stoller's avatar
Leigh B. Stoller committed
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
#
# Delay node names:
#  delay nodes are named tbdelayXX N > 2
#   and tbsdelayXX for N == 2.
# 
# Lan node nameS:
#  lan nodes are named lan/<virtual lan>
######################################################################

# Shark Hack
# For each LAN we replace all the sharks in the LAN with a single
# shark shelf node.  After this goes through assign we pull them
# all back out.
#
# sharkshelves is indexed by virtual shelf name and is a list of
# the virtual nodes in it.
# sharkshelfid is used to generate ids for shark shelves.
$sharkshelfid = 0;

# delayid is used to generate ids for delay nodes.
$delayid = 0;

printdb "Generating TOP file.\n";

# Let's figure out what kind of links we have.
printdb "Finding interface speeds:";
169
170
my $result = DBQueryFatal("SELECT type,max_speed from interface_types");
while (($type,$bandwidth) = $result->fetchrow_array) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
171
172
173
    $okbandwidths{$bandwidth} = 1;
    printdb " $bandwidth";
}
174
$result->finish;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
175
176
177
printdb "\n";

printdb "Loading virt_nodes.\n";
178
179
180
181
182
183
184
185
$result =
    DBQueryFatal("select distinct vname,ips,vn.type,fixed,nt.isvirtnode ".
		 " from virt_nodes as vn ".
		 "left join node_types as nt on ".
		 " nt.type=vn.type or nt.class=vn.type ".
		 "where pid='$pid' and eid='$eid'");

while (($vname,$ips,$type,$fixed,$isvirt) = $result->fetchrow_array) {
186
    if (! defined($fixed))  {$fixed  = "";}
187
188

    # VIRTNODE HACK
189
190
191
192
193
194
195
    #
    # if its a vtype, no entry in node_types. vtypes break virtual nodes.
    # Need to look inside the vtype and make sure no mixing of vnodes and
    # physnodes. Later ...
    #
    if (! defined($isvirt)) {$isvirt = 0;}
    
196
    printdb "  $vname $type $ips $fixed $isvirt\n";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
197
198
199
200
201
202
203
204
205
206
    # We need to check the names to make sure they won't clash with
    # our internal delay node names.
    if (($vname =~ /^tbdelay\d+/) ||
	($vname =~ /^tbsdelay\d+/)) {
	print STDERR "Warning: $vname is a reserved name.  Working around.\n";
	($num) = ($vname =~ /(\d+)/);
	$delayid = $num + 1;
    }
    $nodes{$vname} = $type;
    $nodelans{$vname} = [];
207
208

    # VIRTNODE HACK
209
210
    # 
    $isvirtnode{$vname} = $isvirt;
211
212
213
    foreach $ipinfo (split(" ",$ips)) {
	($port,$ip) = split(":",$ipinfo);
	$ips{"$vname:$port"} = $ip;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
214
    }
215
216
217
    if ($fixed ne "") {
	$fixed_nodes{$vname} = $fixed;
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
218
}
219
$result->finish;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
220
221

printdb "Loading virt_lans.\n";
222
223
224
225
226
227
228
229
$result =
    DBQueryFatal("select vname,member,delay,bandwidth,lossrate," .
		 "rdelay,rbandwidth,rlossrate " .
		 "from virt_lans where pid='$pid' and eid='$eid'");

#
# VIRTNODE HACK: Virtual nodes are special.
#
230
# Prepass the table looking for those virt_lans that have a virtual node
231
# as a member. We want to ignore those (both sides) if its a duplex
232
233
# link, but if its in a lan then we barf since we cannot support putting
# a vnode into a lan yet. We might never support it ...
234
#
235
my %vnodelans = ();
236
my %lancount = ();
237
my %tunnels  = ();
238
239
240
241

while (($vname,$member) = $result->fetchrow_array) {
    ($node,$port) = split(":",$member);

242
243
    if ($isvirtnode{$node}) {
	$vnodelans{$vname} = 1;
244
    }
245
246
    if (!defined($lancount{$vname})) {
	$lancount{$vname} = 0;
247
    }
248
    $lancount{$vname} += 1;
249
    if ($lancount{$vname} > 2 && $vnodelans{$vname}) {
250
251
	die("*** $0:\n".
	    "    Virtual node $node in lan $vname not allowed!\n");
252
253
254
255
256
257
258
    }
}
$result->dataseek(0);

#
# Now do the real pass.
# 
Christopher Alfeld's avatar
Christopher Alfeld committed
259
260
while (($vname,$member,$delay,$bandwidth,$lossrate,
	$rdelay,$rbandwidth,$rlossrate) = $result->fetchrow_array) {
261
262
263
264
265
266
267
268
269
    ($node,$port) = split(":",$member);

    #
    # VIRTNODE HACK: Virtual nodes are special.
    #
    # If its a duplex link involving a virtnode, skip it. 
    # We do not want to have assign deal with these. The nodes are
    # allocated as unconnected, and we deal with it later.
    # 
270
271
272
273
274
275
276
    if ($vnodelans{$vname}) {
	if (! defined($tunnels{$vname})) {
	    $tunnels{$vname} = [];
	}
	push(@{$tunnels{$vname}},$member);
	printdb "    Added $member to tunnels of $vname\n";
	next;
277
278
    }
    
Leigh B. Stoller's avatar
Leigh B. Stoller committed
279
280
281
282
    if (! defined($lans{$vname})) {
	$lans{$vname} = [];
    }
    push(@{$lans{$vname}},$member);
Christopher Alfeld's avatar
Christopher Alfeld committed
283
284
    $delayinfo{"$vname:$member"} = [$delay,$bandwidth,$lossrate,
				    $rdelay,$rbandwidth,$rlossrate];
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314

    #
    # Grab the Q stuff from virt_lans. I'm keeping this separate for
    # now until I understand whats going on. There are no "r" params
    # either. I have no idea how do to this stuff for lans, and for
    # duplex links the "r" params are not necessary. Each virt_lans
    # entry gives the params towards the switch, which equal the
    # reverse params for the other member. 
    #
    my $query_result =
	DBQueryFatal("select q_limit,q_maxthresh,q_minthresh,q_weight, ".
		     "       q_linterm,q_qinbytes,q_bytes,q_meanpsize, ".
		     "       q_wait,q_setbit,q_droptail,q_red,q_gentle ".
		     "from virt_lans ".
		     "where pid='$pid' and eid='$eid' and ".
		     "      vname='$vname' and member='$member'");
    
    my ($q_limit,$q_maxthresh,$q_minthresh,$q_weight,$q_linterm,
	$q_qinbytes,$q_bytes,$q_meanpsize,$q_wait,$q_setbit,
	$q_droptail,$q_red,$q_gentle) = $query_result->fetchrow_array;
    
    $queueinfo{"$vname:$member"} =
	[$q_limit,$q_maxthresh,$q_minthresh,$q_weight,$q_linterm,
	 $q_qinbytes,$q_bytes,$q_meanpsize,$q_wait,$q_setbit,
	 $q_droptail,$q_red,$q_gentle];

    if ($q_red) {
	$mustdelay{$vname} = 1;
    }
    
315
316
317
318
319
320
321
322
323
324
325
326
    #
    # XXX - Whenever a delay node is inserted, port speeds are set to
    #       100Mbs, even if they requested exactly 10Mbs. 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.
    # 
    if ($bandwidth == $S10Kbs && $delaywithswitch) {
	$portbw{$member} = $S10Mbs;
327
    } else {
328
	$portbw{$member} = $S100Mbs;
329
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
330
    push(@{$nodelans{$node}},"$port:$vname");
331
    printdb "  portbw of $member = $portbw{$member}\n";
Christopher Alfeld's avatar
Christopher Alfeld committed
332
    printdb "  $vname $member - $delay $bandwidth $lossrate $rdelay $rbandwidth $rlossrate\n";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
333
334
    printdb "    Added $port:$vname to nodelans of $node\n";
}
335
$result->finish;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
336

337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
#
# Check event list. Anytime we find an event to control a link, we need
# to drop a delay node in. start/stop especially, since thats the easiest
# way to do that, even if the link has no other traffic shaping in it. 
# 
printdb "Checking events for LINK commands.\n";
$result =
    DBQueryFatal("select distinct vname from eventlist as ex ".
		 "left join event_eventtypes as et on ex.eventtype=et.idx ".
		 "left join event_objecttypes as ot on ex.objecttype=ot.idx ".
		 "where ot.type='LINK' and ex.pid='$pid' and ex.eid='$eid'");
while (($vname) = $result->fetchrow_array) {
    $mustdelay{$vname} = 1;
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
352
353
354
355
356
357
358
# Shark hack
foreach $lan (keys(%lans)) {
    $realmembers = [];
    $sharks = [];
    $hassharks = 0;
    foreach $member (@{$lans{$lan}}) {
	($node) = (split(":",$member))[0];
359
	if (($nodes{$node} eq "shark") || ($nodes{$node} eq "dnard")) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
360
361
362
363
364
365
366
367
368
369
370
371
	    push(@$sharks,$member);
	    $hassharks = 1;
	} else {
	    push(@$realmembers,$member);
	}
    }
    if ($hassharks) {
	$shelfid = "sharkshelf$sharkshelfid";
	printdb "  Creating shark shelf: $shelfid (" . 
	    join(" ",@$sharks) . ")\n";
	$sharkshelfid++;
	$sharkshelves{$shelfid} = $sharks;
372
	$delayinfo{"$lan:$shelfid:uplink"} = [0,$S100Kbs,0.0,
373
					      0,$S100Kbs,0.0];
Leigh B. Stoller's avatar
Leigh B. Stoller committed
374
375
376
377
378
379
380
	push(@$realmembers,"$shelfid:uplink");
	$nodes{$shelfid} = "shark-shelf";
    }
    $lans{$lan} = $realmembers;
}
# End shark hack

Christopher Alfeld's avatar
Christopher Alfeld committed
381
382
383
384
385
386
387
388
389
# Load virt types
printdb "Loading virt_vtypes.\n";
$result = DBQueryFatal("SELECT name,weight,members from virt_vtypes" .
		       " where pid=\"$pid\" and eid=\"$eid\"");
while (($name,$weight,$types) = $result->fetchrow_array) {
    printdb "  $name $weight $types\n";
    $vtypes{$name} = "$weight $types";
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
390
# Open the TOP file
391
$topfile = "$eid.top";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
392
open(TOPFILE,"> $topfile") || do {
393
394
    die("*** $0:\n".
	"    Could not open $topfile.\n");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
395
396
};

Christopher Alfeld's avatar
Christopher Alfeld committed
397
398
399
400
# Print out vtypes
foreach $vtype (keys(%vtypes)) {
    print TOPFILE "make-vclass $vtype $vtypes{$vtype}\n";
}
401
402
403
404

$nodes=0;
$delaynodes=0;

Leigh B. Stoller's avatar
Leigh B. Stoller committed
405
406
foreach $node (keys(%nodes)) {
    # Shark hack
407
    if (($nodes{$node} ne "shark") && ($nodes{$node} ne "dnard")) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
408
	print TOPFILE "node $node $nodes{$node}\n";
409
410
411
	if ($nodes{$node} ne "shark-shelf") {
	    $nodes++;
	}
Leigh B. Stoller's avatar
Leigh B. Stoller committed
412
413
414
415
416
417
    }
    # End Shark hack
}

foreach $lan (keys(%lans)) {
    @members = @{$lans{$lan}};
418
    printdb "$lan - " . join(" ",@members) . "\n";
419
420
421
422
423
424
425
426
427
428
429
    # Shark hack for rvr
    $sharks = 0;
    $nonsharks = 0;
    foreach $member (@members) {
	($node) = (split(":",$member))[0];
	if ($nodes{$node} eq "shark-shelf") {
	    $sharks++;
	} else {
	    $nonsharks++;
	}
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
430
431
432
433
    if ($#members == 1) {
	($nodeport0,$nodeport1) = @members;
	$node0 = (split(":",$nodeport0))[0];
	$node1 = (split(":",$nodeport1))[0];
Christopher Alfeld's avatar
Christopher Alfeld committed
434
435
436
437
438
439
440
441
442
443
444
445
446
447
	($delay0,$bw0,$loss0,
	 $rdelay0,$rbw0,$rloss0) = @{$delayinfo{"$lan:$nodeport0"}};
	($delay1,$bw1,$loss1,
	 $rdelay1,$rbw1,$rloss1) = @{$delayinfo{"$lan:$nodeport1"}};
	# Here the r's aregoing to be 1->0 and the others 0->1
	$delay = $delay0+$rdelay1;
	$loss = 1-(1-$loss0)*(1-$rloss1);
	$bw = &min($bw0,$rbw1);
	$rdelay = $rdelay0+$delay1;
	$rloss = 1-(1-$rloss0)*(1-$loss1);
	$rbw = &min($rbw0,$bw1);
	$bandwidth = &getbandwidth(&min($bw0,$rbw1));
	$rbandwidth = &getbandwidth(&min($rbw0,$bw1));
	if ((($delay >= $delaythresh) ||
448
449
450
451
452
	     (($bw != $S100Kbs) && ($bw != $S10Kbs)) ||
	     (($delaywithswitch == 0) && 
	      (($bw != $S100Kbs) && (($sharks == 0) || ($nonsharks > 1)))) || 
	     ($loss != 0)) ||
	    (defined($mustdelay{$lan})) ||
Christopher Alfeld's avatar
Christopher Alfeld committed
453
454
455
456
457
	    (($rdelay >= $delaythresh) ||
	     (($rbw != $S100Kbs) && ($rbw != $S10Kbs)) ||
	     (($delaywithswitch == 0) && 
	      (($rbw != $S100Kbs) && (($sharks == 0) || ($nonsharks > 1)))) || 
	     ($rloss != 0))) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
458
	    $delayname = "tbsdelay$delayid";
Christopher Alfeld's avatar
Christopher Alfeld committed
459
460
	    $delaynodes{"linksdelaysrc/$lan"} = [$delay,$bw,$loss,
						 $rdelay,$rbw,$rloss];
Leigh B. Stoller's avatar
Leigh B. Stoller committed
461
462
463
464
	    printdb "Delay node linksdelaysrc/$lan ($delayname) = " . 
		join(" ",@{$delaynodes{"linksdelaysrc/$lan"}}) . "\n";
	    $delayid++;
	    print TOPFILE "node $delayname delay\n";
465
	    $delaynodes++;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
466
467
468
469
	    print TOPFILE "link linksdelaysrc/$lan $node0 $delayname"
		. " $bandwidth\n";
	    print TOPFILE "link linksdelaydst/$lan $node1 $delayname"
		. " $bandwidth\n";
470
471
472
473
474
475
476
477
	    #
	    # Ports are set to 100Mbs when a link gets a delay node.
	    # This can override initialization above cause we could not
	    # tell earlier if the link was going to get a real delay node
	    # or just a delaywithswitch.
	    #
	    $portbw{$nodeport0} = $S100Mbs;	    
	    $portbw{$nodeport1} = $S100Mbs;	    
Leigh B. Stoller's avatar
Leigh B. Stoller committed
478
479
480
	} else {
	    print TOPFILE "link linksimple/$lan $node0 $node1 $bandwidth\n";
	}
481
    } elsif ($#members != 0) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
482
483
484
	print TOPFILE "node lan/$lan lan\n";
	$lannodes{"lan/$lan"} = 1;
	foreach $member (@members) {
Christopher Alfeld's avatar
Christopher Alfeld committed
485
486
	    ($delay,$bw,$loss,
	     $rdelay,$rbw,$rloss) = @{$delayinfo{"$lan:$member"}};
Leigh B. Stoller's avatar
Leigh B. Stoller committed
487
	    $bandwidth = &getbandwidth($bw);
Christopher Alfeld's avatar
Christopher Alfeld committed
488
	    $rbandwidth = &getbandwidth($rbw);
Leigh B. Stoller's avatar
Leigh B. Stoller committed
489
	    ($node) = (split(":",$member))[0];
490
491
# XXX The expression below should be modified for better bandwidth support.
# Probably needs to happen post assign somehow.
Christopher Alfeld's avatar
Christopher Alfeld committed
492
	    if ((($delay >= $delaythresh) ||
493
494
495
496
497
498
		 (($bw != $S100Kbs) && ($bw != $S10Kbs))  ||
		 (($delaywithswitch == 0) && 
		  (($bw != $S100Kbs) && (($sharks == 0) ||
					 ($nonsharks > 1)))) ||
		 ($loss != 0)) || 
		(defined($mustdelay{$lan})) ||
Christopher Alfeld's avatar
Christopher Alfeld committed
499
500
501
502
503
		(($rdelay >= $delaythresh) ||
		 (($rbw != $S100Kbs) && ($rbw != $S10Kbs))  ||
		 (($delaywithswitch == 0) && 
		  (($rbw != $S100Kbs) && (($sharks == 0) ||
					 ($nonsharks > 1)))) ||
Leigh B. Stoller's avatar
Leigh B. Stoller committed
504
		 ($rloss != 0))) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
505
		$delayname = "tbdelay$delayid";
506
507
		$delaynodes{"linkdelaysrc/$lan/$member"} =
		    [$delay,$bw,$loss,$rdelay,$rbw,$rloss];
Leigh B. Stoller's avatar
Leigh B. Stoller committed
508
509
510
511
		printdb "Delay node linkdelaysrc/$lan/$member ($delayname) " .
		    " = " . join(" ",@{$delaynodes{"linkdelaysrc/$lan/$member"}}) . "\n";
		$delayid++;
		print TOPFILE "node $delayname delay\n";
512
		$delaynodes++;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
513
514
515
516
		print TOPFILE "link linkdelaysrc/$lan/$member" .
		    " $node $delayname $bandwidth\n";
		print TOPFILE "link linkdelaydst/$lan/$member" .
		    " lan/$lan $delayname $bandwidth\n";
517
518
519
520
521
522
523
		#
		# Port is set to 100Mbs when the link gets a delay node.
		# This can override initialization above cause we could not
		# tell earlier if the link was going to get a real delay node
		# or just a delaywithswitch.
		#
		$portbw{$member} = $S100Mbs;	    
Leigh B. Stoller's avatar
Leigh B. Stoller committed
524
525
526
527
528
529
	    } else {
		print TOPFILE "link linklan/$lan/$member $node lan/$lan" .
		    " $bandwidth\n";
	    }
	}
    }
530
    # If a LAN has only one member we don't do anything.
Leigh B. Stoller's avatar
Leigh B. Stoller committed
531
532
}

533
534
535
536
537
# Print out fixed nodes
foreach $fixed (keys(%fixed_nodes)) {
    print TOPFILE "fix-node $fixed $fixed_nodes{$fixed}\n";
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
538
539
close TOPFILE;

540
541
542
# Set estimations
$minimum_nodes = $nodes + $delaynodes/$DELAYCAPACITY;
$maximum_nodes = $nodes + $delaynodes;
543
DBQueryFatal("UPDATE experiments set maximum_nodes=$maximum_nodes, " .
544
545
546
547
	 "minimum_nodes=$minimum_nodes where pid=\"$pid\" and eid=\"$eid\"");
print "Minumum nodes = $minimum_nodes\n";
print "Maximum nodes = $maximum_nodes\n";

Leigh B. Stoller's avatar
Leigh B. Stoller committed
548
549
550
551
552
553
554
555
556
557
######################################################################
# Step 2 - Assign Loop
# 
# Here we loop up to maxrun times.  In each loop we snapshot the
# current testbed state into a ptop file.  We then run assign.  If
# assign succeeds we attempt to reserve the resources.  If that works
# we're done with step 2 otherwise we loop again.
#
# v2pmap is indexed by virtual and contains the physical node.
# p2vmap is indexed by physical and contains the virtual node
558
# p2pmap is indexed by physical and contains the physical node.
Leigh B. Stoller's avatar
Leigh B. Stoller committed
559
560
561
562
563
564
565
566
567
568
# plinks is indexed by virtual name and contains 
#  (pnodeportA,pnodeportB) .  If one is a delay node it is always
#  the second.
#######################################################################

$currentrun = 1;
while (1) {
    print "Assign Run $currentrun\n";

    # Violation counts
569
    $unassigned = -1;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
570
571
572
573
574
575
576
577
578
579
    $linkusers = -1;
    $bandwidth = -1;
    $desires = -1;

    # Clear v2pmap, p2vmap, and plinks
    undef %v2pmap;
    undef %p2vmap;
    undef %plinks;

    # Snapshot
580
    system("ptopgen > $ptopfile");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
581
582

    # Get number of nodes
583
584
    my $numnodes_result = 
	DBQueryFatal("select a.node_id,a.type from" .
Leigh B. Stoller's avatar
Leigh B. Stoller committed
585
586
587
		     " nodes as a left join reserved as b" .
		     " on a.node_id=b.node_id" .
		     " where b.node_id is null" .
588
		     " and a.role='testnode' and a.type!='dnard'");
589
    $numnodes = $numnodes_result->numrows;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
590
591
    
    if ($numnodes < $minimum_nodes) {
592
	print STDERR "$0: *** Insufficient nodes available.\n";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
593
594
595
596
597
598
	exit(2);
    }

    # Run assign
    $fail = 0;
    print "assign -b -t $ptopfile $topfile\n";
599
    open(ASSIGNFP,"assign -b -t $ptopfile $topfile | tee assign.log |");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
600
601
602
603
604
605
606
607
    $violations = 0;
    $score = -1;

    # read output
    # Header
    printdb "Reading assign results.\n";
    while (<ASSIGNFP>) {
	chop;
608
609
610
611
	/No physical nodes of type (.+)$/ && do {
	    $score=-2;
	    print $_ . "\n";
	};
Leigh B. Stoller's avatar
Leigh B. Stoller committed
612
613
614
615
616
617
	/^With ([0-9]+) violations$/ && do {
	    $violations = $1;
	    last;
	};
	/^[ \t]+BEST SCORE: [ \t]+([0-9]+\.[0-9]+)/ && ($score=$1);
    }
618
619
620
621
622
    if ($score == -2) {
	# Type error
	print "Giving up.\n";
	exit(2);
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
623
624
625
626
627
628
629
630
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
    printdb "Found score $score, violations $violations.\n";

    # We don't bother reading anything else if violations occured.
    if (($violations == 0) && ($score != -1)) {
	# read nodes section
	while (<ASSIGNFP> !~ /^Nodes:/) {}
	printdb "Nodes:\n";
	while (<ASSIGNFP>) {
	    chop;
	    /^End Nodes$/ && last;
	    @info = split;
	    ($virtual,$physical) = @info[0,2];
	    $v2pmap{$virtual} = $physical;
	    $p2vmap{$physical} = $virtual;
	    printdb "  $virtual $physical\n";
	}

	# read Edges
	# By convention, in plinks, the delay node is always the second
	# entry.
	while (<ASSIGNFP> !~ /^Edges:/) {}
	printdb "Edges:\n";
	while (<ASSIGNFP>) {
	    /^End Edges$/ && last;
	    @info = split;
	    $line = $_;
	    $_ = $info[1]; # type
	  SWITCH1: {
	      /^intraswitch$/ && do {
		  ($vlink,$rawA,$rawB) = @info[0,3,5];
		  last SWITCH1;
	      };
	      /^interswitch$/ && do {
656
657
		  ($vlink,$rawA,$rawB) = @info[0,3,$#info];
		  last SWITCH1;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
658
659
	      };
	      /^direct$/ && do {
660
661
		  die("*** $0:\n".
		      "    Unsupported link type: direct.\n");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
662
663
664
	      };
	      print "Found garbage: $line\n";
	  }
665
666
667
668
669
670
671
672
673
	    $nodeportA = &getnodeport($rawA);
	    $nodeportB = &getnodeport($rawB);
	    $nodeportA =~ s/\//:/;
	    $nodeportB =~ s/\//:/;
	    if (&isdelay($nodeportB)) {
		$plinks{$vlink} = [$nodeportA,$nodeportB];
	    } else {
		$plinks{$vlink} = [$nodeportB,$nodeportA];
	    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
674
675
676
677
678
679
680
681
682
683
	    printdb "  $vlink " . join(" ",@{$plinks{$vlink}}) . "\n";
	}
    } else {
	# spit out up to nodes
	print "ASSIGN FAILED:\n";       
	while (<ASSIGNFP>) {
	    if (/link_users: (\d+)$/) {
		$linkusers = $1;
	    } elsif (/bandwidth: (\d+)$/) {
		$bandwidth = $1;
684
685
	    } elsif (/unassigned: (\d+)$/) {
		$unassigned = $1;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
686
687
688
689
690
691
692
693
694
695
696
697
	    } elsif (/desires: (\d+)$/) {
		$desires = $1;
	    }
	    if (/^Nodes:/) {last;}
	    print "$_";
	}
	$fail = 1;
    }
    while (<ASSIGNFP>) { } # Read anything left in the pipe before closing
    close(ASSIGNFP);

    # Reserve resources
698
    if (!$fail) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
	print "Reserving resources.\n";
	@toreserve = ();
	# We don't reserve LAN nodes.
	foreach $node (keys(%p2vmap)) { 
	    if (! defined($lannodes{$p2vmap{$node}})) {
		push(@toreserve,$node);
	    }
	}
	if (system("nalloc $pid $eid " . join(" ",@toreserve))) {
	    print "Failed to reserve resources.  Trying again.\n";
	} else {
	    print "Successfully reserved resources.  Finishing setup.\n";
	    last;
	}
    }

    # Check for exit
    if ($currentrun >= $maxrun) {
	$exitcode = 1;
	if ($bandwidth > 0) {
	    $exitcode += 4;
	} 
	if ($linkusers > 0) {
	    $exitcode += 8;
	}
	if ($desires > 0) {
	    $exitcode += 16;
	}
727
728
729
	if ($unassigned > 0) {
	    $exitcode += 32;
	}
730
	print "$0: *** Reached run limit.  Giving up.\n";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
731
732
733
734
735
	exit($exitcode);
    }
    $currentrun++;
}

736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
#
# VIRTNODES HACK: physical nodes (from the nodes table) might really
# be a virtual node :-) Must get the underlying phys_nodeid.
#
my %p2pmap = ();

foreach my $pnode (keys(%p2vmap)) {
    my $phys_nodeid;

    if (! TBPhysNodeID($pnode, \$phys_nodeid)) {
	die("*** $0:\n".
	    "    Cannot determine phys_nodeid for $pnode!\n");
    }
    $p2pmap{$pnode} = $phys_nodeid;
}
Leigh B. Stoller's avatar
Leigh B. Stoller committed
751
752
753
754
755
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
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817

######################################################################
# Step 3 - Convert to vlans, delays, and portmap
# 
# Here we convert the plinks into vlans, delays, and portmap.  We
# convert them first into internal datastructure.  After Step 4
# when we do some port swapping we'll upload the modified versions
# of these structures into the database.
#
# vlans is indexed by an internal ID contains:
#  [vname, members]
# delays is indexed by an internal ID and contains:
#  [pnode, int0, int1, vname, delay, bandwidth, lossrate]
# portmap is indexed by <virtual node>:<virtual port> and contains
#  the physical port.
# nodevlans is indexed by physical node and contains the VLANs
#  it's interfaces are in.  It does not contain entries for delay
#  nodes.
#
# vlan ids
#  vlan ids are increasing integers in the case of node<->delay connections.
#  In the case of actual LANs either of real node or of delay nodes
#  they are indexed by virtual lan name.
# delay ids
#  delay ids are increasing integers.  We could have used a list of
# delays just as well.  Having it as an array may prove useful for
# future changes however.
######################################################################

$vlanid = 0;
$delayid = 0;
foreach $pnode (keys(%p2vmap)) {
    $nodevlans{$pnode} = [];
}

printdb "Interpreting results.\n";
foreach $plink (keys(%plinks)) {
    ($nodeportA,$nodeportB) = @{$plinks{$plink}};
    ($nodeA,$portA) = split(":",$nodeportA);
    ($nodeB,$portB) = split(":",$nodeportB);
    printdb "plink $plink - $nodeportA $nodeportB\n";
    if (($lan) = ($plink =~ m|^linksdelaysrc/(.+)$|)) {
	# Node has a single entry in lan.
	# Node is nodeportA
	# Delay node is nodeportB
	# Other end of delay node will be given by plink
	#   linksdelaydst/lan where nodeportA will be the other node in
	#   the virtual LAN and nodeportB will be the other end of the
	#   delay node.

	($nodeportC,$nodeportD) = @{$plinks{"linksdelaydst/$lan"}};
	($nodeC,$portC) = split(":",$nodeportC);
	($nodeD,$portD) = split(":",$nodeportD);
	printdb "LINK delay: other end = $nodeportC $nodeportD\n";

	# assert nodeB == nodeD

	printdb "  VLANS:\n";
	$vlans{$vlanid} = [$lan,[$nodeportA, $nodeportB]];
	push(@{$nodevlans{$nodeA}},$vlanid);
	printdb "    $vlanid = $lan, \[$nodeportA, $nodeportB\]\n";
	$vlanid++;
	$vlans{$vlanid} = [$lan,[$nodeportC, $nodeportD]];
	push(@{$nodevlans{$nodeC}},$vlanid);
	printdb "    $vlanid = $lan, \[$nodeportC, $nodeportD\]\n";
	$vlanid++;

Christopher Alfeld's avatar
Christopher Alfeld committed
818
819
	($delay,$bandwidth,$lossrate,
	 $rdelay,$rbandwidth,$rlossrate) = @{$delaynodes{$plink}};
Leigh B. Stoller's avatar
Leigh B. Stoller committed
820
	$delays{$delayid} = [$nodeB,$portB,$portD,$lan,
Christopher Alfeld's avatar
Christopher Alfeld committed
821
			     $delay,$bandwidth,$lossrate,
Christopher Alfeld's avatar
Christopher Alfeld committed
822
823
			     $rdelay,$rbandwidth,$rlossrate,
			     $nodeportA,$nodeportC];
Leigh B. Stoller's avatar
Leigh B. Stoller committed
824
	printdb "  Delays: $delayid = \[$nodeB,$portB,$portD,$lan" .
Christopher Alfeld's avatar
Christopher Alfeld committed
825
826
	    ",$delay,$bandwidth,$lossrate,$rdelay,$rbandwidth," .
		"$rlossrate,$nodeportA,$nodeportC\]\n";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
827
	$delayid++;
Christopher Alfeld's avatar
Christopher Alfeld committed
828
	
Leigh B. Stoller's avatar
Leigh B. Stoller committed
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
	$virtA = &find_vport($p2vmap{$nodeA},$lan);
	$virtC = &find_vport($p2vmap{$nodeC},$lan);
	$portmap{"$p2vmap{$nodeA}:$virtA"} = $portA;
	$portmap{"$p2vmap{$nodeC}:$virtC"} = $portC;
	printdb "  Portmap:\n";
	printdb "    $p2vmap{$nodeA}:$virtA = $portA\n";
	printdb "    $p2vmap{$nodeC}:$virtC = $portC\n";
    } elsif (($lan,$member) = ($plink =~ m|^linkdelaysrc/([^/]+)/(.+)$|)) {
	# Node may have multiple entries in lan.
	# Delay node is nodeB and portB.
	# Other end of delay node will be given by plink
	#  linkdelaydst/lan/node where nodeportA will the LAN node and
	#  nodeportB will be the other end of the delay node.
	($nodeportC,$nodeportD) = @{$plinks{"linkdelaydst/$lan/$member"}};
	($nodeC,$portC) = split(":",$nodeportC);
	($nodeD,$portD) = split(":",$nodeportD);
	printdb "LAN delay src: other end = $nodeportC $nodeportD\n";
	
	$vlans{$vlanid} = [$lan,[$nodeportA, $nodeportB]];
	push(@{$nodevlans{$nodeA}},$vlanid);
	printdb "  VLANS:\n";
	printdb "    $vlanid = $lan, \[$nodeportA $nodeportB\]\n";
	$vlanid++;
	
	if (! defined($vlans{$lan})) {
	    $vlans{$lan} = [$lan,[]];
	}
	$members = (@{$vlans{$lan}})[1];
	push(@$members,$nodeportD);
	printdb "    $lan = $lan, \[" . join(" ",@$members) . "\]\n"; 

Christopher Alfeld's avatar
Christopher Alfeld committed
860
861
	($delay,$bandwidth,$loss,
	 $rdelay,$rbandwidth,$rloss) = @{$delaynodes{$plink}};
Leigh B. Stoller's avatar
Leigh B. Stoller committed
862
	$delays{$delayid} = [$nodeB,$portB,$portD,$lan,
Christopher Alfeld's avatar
Christopher Alfeld committed
863
			     $delay,$bandwidth,$loss,
Christopher Alfeld's avatar
Christopher Alfeld committed
864
865
			     $rdelay,$rbandwidth,$rloss,
                             $nodeportA,$nodeportC];
Leigh B. Stoller's avatar
Leigh B. Stoller committed
866
	printdb "  Delays: $delayid = \[$nodeB,$portB,$portD,$lan," .
Christopher Alfeld's avatar
Christopher Alfeld committed
867
868
	    "$delay,$bandwidth,$loss,$rdelay,$rbandwidth,$rloss," .
             "$nodeportA,$nodeportC\]\n";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
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
	$delayid++;
	
	$virt = &find_vport($p2vmap{$nodeA},$lan);
	$portmap{"$p2vmap{$nodeA}:$virt"} = $portA;
	printdb "  Portmap: $p2vmap{$nodeA}:$virt = $portA\n";
    } elsif (($lan) = ($plink =~ m|^linksimple/(.+)$|)) {
	# nodeportA and nodeportB are the only two nodes in the
	# virtual LAN and there are no delays.
	printdb "Simple Link\n";
	$vlans{$lan} = [$lan,[$nodeportA,$nodeportB]];
	printdb "  VLANS: $lan = $lan, \[$nodeportA $nodeportB\]\n";
	
	push(@{$nodevlans{$nodeA}},$lan);
	push(@{$nodevlans{$nodeB}},$lan);
	
	$virtA = &find_vport($p2vmap{$nodeA},$lan);
	$virtB = &find_vport($p2vmap{$nodeB},$lan);
	$portmap{"$p2vmap{$nodeA}:$virtA"} = $portA;
	$portmap{"$p2vmap{$nodeB}:$virtB"} = $portB;
	printdb "  Portmap:\n";
	printdb "    $p2vmap{$nodeA}:$virtA = $portA\n";
	printdb "    $p2vmap{$nodeB}:$virtB = $portB\n";
    } elsif (($lan) = ($plink =~ m|^linklan/([^/]+)/.+$|)) {
	# node may be the LAN multiple times.
	# nodeportA is the node.
	# nodeportB is the LAN
	# No delays
	printdb "LAN\n";
	if (! defined($vlans{$lan})) {
	    $vlans{$lan} = [$lan,[]];
	}
	$members = (@{$vlans{$lan}})[1];
	push(@$members,$nodeportA);
	printdb "  VLANS: $lan = $lan,\[" . join(" ",@$members) . "\]\n";

	$virt = &find_vport($p2vmap{$nodeA},$lan);
	$portmap{"$p2vmap{$nodeA}:$virt"} = $portA;
	printdb "  Portmap: $p2vmap{$nodeA}:$virt = $portA\n";
    }
    # Else delaysrc case, will be handled by one of the other cases.
}

######################################################################
# Step 4 - Upload to DB
#
# Nothing fancy.
######################################################################
printdb "Uploading to DB\n";
foreach $vlan (keys(%vlans)) {
    ($lan,$members) = @{$vlans{$vlan}};
919
    DBQueryFatal("insert into vlans (id,pid,eid,virtual,members) values" .
Leigh B. Stoller's avatar
Leigh B. Stoller committed
920
	     " (0,\"$pid\",\"$eid\",\"$lan\",\"" .
921
	     join(" ",@$members) . "\")");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
922
}
Leigh B. Stoller's avatar
Leigh B. Stoller committed
923
924
my $pipeid = 100;

Leigh B. Stoller's avatar
Leigh B. Stoller committed
925
foreach $delay (keys(%delays)) {
Christopher Alfeld's avatar
Christopher Alfeld committed
926
927
    # So r* indicates int1->int0 and others are int0->int1
    ($pnode,$int0,$int1,$vname,$delay,$bandwidth,$lossrate,
Christopher Alfeld's avatar
Christopher Alfeld committed
928
     $rdelay,$rbandwidth,$rlossrate,$np0,$np1) = 
Leigh B. Stoller's avatar
Leigh B. Stoller committed
929
	@{$delays{$delay}};
Leigh B. Stoller's avatar
Leigh B. Stoller committed
930
931
932
    my $pipe0 = $pipeid;
    my $pipe1 = $pipeid + 10;
    $pipeid += 100;
933
934
935
936
937
938
939
940
941

    #
    # Okay, this is terible. If this is link (not a lan) then find the
    # the queue info. We do not support queues in lans yet.
    #
    my @members = @{$lans{$vname}};
    if (@members == 2) {
	my ($nodeport0,$nodeport1) = @members;

Christopher Alfeld's avatar
Christopher Alfeld committed
942
943
944
945
946
947
948
949
	$np0node = (split(":",$np0))[0];
	$np1node = (split(":",$np1))[0];
	$np0vnode = $p2vmap{$np0node};
	$np1vnode = $p2vmap{$np1node};

	$node0 = (split(":",$np0))[0];
	$node1 = (split(":",$np1))[0];

950
951
952
	printdb("np0 = $np0, np0vnode = $np0vnode, np1 = $np1, ".
		"np1vnode = $np1vnode, nodeport0 = $nodeport0, ".
		"nodeport1 = $nodeport1\n");
Christopher Alfeld's avatar
Christopher Alfeld committed
953
954
955
956
957
958
959
960
961
962

	# This is pretty hackish
	if ($node0 eq $np0node) {
	    $vnp0 = $nodeport0;
	    $vnp1 = $nodeport1;
	} else {
	    $vnp0 = $nodeport1;
	    $vnp1 = $nodeport0;
	}

963
964
965
	my ($q0_limit,$q0_maxthresh,$q0_minthresh,$q0_weight,$q0_linterm,
	    $q0_qinbytes,$q0_bytes,$q0_meanpsize,$q0_wait,$q0_setbit,
	    $q0_droptail,$q0_red,$q0_gentle) =
Christopher Alfeld's avatar
Christopher Alfeld committed
966
		@{$queueinfo{"$vname:$vnp0"}};
967
968
969
970

	my ($q1_limit,$q1_maxthresh,$q1_minthresh,$q1_weight,$q1_linterm,
	    $q1_qinbytes,$q1_bytes,$q1_meanpsize,$q1_wait,$q1_setbit,
	    $q1_droptail,$q1_red,$q1_gentle) =
Christopher Alfeld's avatar
Christopher Alfeld committed
971
		          @{$queueinfo{"$vname:$vnp1"}};
972
973
974
975
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
    
	DBQueryFatal("insert into delays " .
	     " (pid,eid,node_id,vname,iface0,iface1" .
	     ",pipe0,delay0,bandwidth0,lossrate0" .
	     ",pipe1,delay1,bandwidth1,lossrate1" .
	     ",q0_limit,q0_maxthresh,q0_minthresh,q0_weight,q0_linterm" .
	     ",q0_qinbytes,q0_bytes,q0_meanpsize,q0_wait,q0_setbit" .
	     ",q0_droptail,q0_red,q0_gentle" .
	     ",q1_limit,q1_maxthresh,q1_minthresh,q1_weight,q1_linterm" .
	     ",q1_qinbytes,q1_bytes,q1_meanpsize,q1_wait,q1_setbit" .
	     ",q1_droptail,q1_red,q1_gentle)" .
	     " values ('$pid','$eid','$pnode','$vname','$int0','$int1'".
	     ",$pipe0,$delay,$bandwidth,$lossrate".
	     ",$pipe1,$rdelay,$rbandwidth,$rlossrate".
	     ",$q0_limit,$q0_maxthresh,$q0_minthresh,$q0_weight,$q0_linterm".
	     ",$q0_qinbytes,$q0_bytes,$q0_meanpsize,$q0_wait,$q0_setbit".
	     ",$q0_droptail,$q0_red,$q0_gentle".
  	     ",$q1_limit,$q1_maxthresh,$q1_minthresh,$q1_weight,$q1_linterm".
	     ",$q1_qinbytes,$q1_bytes,$q1_meanpsize,$q1_wait,$q1_setbit".
	     ",$q1_droptail,$q1_red,$q1_gentle)");
    }
    else {
	DBQueryFatal("insert into delays" .
	     " (pid,eid,node_id,vname,iface0,iface1" .
	     ",pipe0,delay0,bandwidth0,lossrate0" .
	     ",pipe1,delay1,bandwidth1,lossrate1)" .
	     " values ('$pid','$eid','$pnode','$vname','$int0','$int1'".
	     ",$pipe0,$delay,$bandwidth,$lossrate".
	     ",$pipe1,$rdelay,$rbandwidth,$rlossrate)");
    }
    
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
    #
    # XXX - Whenever a delay node is inserted, port speeds are set to
    #       100Mbs on the delay node ports. This is to ensure that
    #       they get a valid number instead of something left over, but
    #       also because 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 above where portbw hash
    #       is set.
    #
    DBQueryFatal("update interfaces set " .
		 "current_speed='$S100Mbs' " .
		 "where node_id='$pnode' and ".
		 "(iface='$int0' or iface='$int1')");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1018
}
1019

Leigh B. Stoller's avatar
Leigh B. Stoller committed
1020
1021
1022
1023
1024
1025
1026
1027
foreach $vnodeport (keys(%portmap)) {
    ($vnode,$vport) = split(":",$vnodeport);
    $pport = $portmap{$vnodeport};
    # Shark Hack
    if ($nodes{$vnode} eq "shark-shelf") {
	$shelf = $v2pmap{$vnode};
	$i = 1;
	foreach $shark (@{$sharkshelves{$vnode}}) {
1028
1029
	    DBQueryFatal("update interfaces set IPalias=\"$ips{$shark}\" " .
		    "where node_id = \"$shelf-$i\"");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1030
1031
1032
	    $i++;
	}
    } else {
1033
1034
	DBQueryFatal("update interfaces set IP=\"$ips{$vnodeport}\" where" .
		 " node_id = \"$v2pmap{$vnode}\" and iface = \"$pport\"");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1035
1036
1037
    }
    # End Shark Hack
}
1038
# Load delay_osids and default osids for types
1039
1040
$result = DBQueryFatal("SELECT type,delay_osid,osid from node_types");
while (($type,$delayosid,$defosid) = $result->fetchrow_array) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1041
    $delayosids{$type} = $delayosid;
1042
    $defosids{$type} = $defosid;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1043
}
1044
$result->finish;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
@nodepairs = ();
foreach $pnode (keys(%p2vmap)) {
    if (defined($sharkshelves{$p2vmap{$pnode}})) {
	$i = 1;
	foreach $sharknodeport (@{$sharkshelves{$p2vmap{$pnode}}}) {
	    $shark = (split(":",$sharknodeport))[0];
	    push(@nodepairs,["$pnode-$i",$shark]);
	    $i++;
	}
    } else {
	push(@nodepairs,[$pnode,$p2vmap{$pnode}]);
    }
}
foreach $pair (@nodepairs) {
    ($pnode,$vnode) = @$pair;
1060
1061
1062
    my $result = DBQueryFatal("SELECT osname,cmd_line,rpms,deltas," .
			 " startupcmd,tarfiles,failureaction,routertype " .
			 " from virt_nodes where pid=\"$pid\"" .
1063
			 " and eid=\"$eid\" and vname=\"$vnode\"");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1064
1065
    # The if statement will cause us to skip nodes that belong to
    # the experiment but aren't virtual.  I.e. delay nodes.
1066
    # Figure out type of pnode
1067
    my $result2 = DBQueryFatal("SELECT type from nodes" .
1068
			  " where node_id=\"$pnode\"");
1069
1070
    my ($type) = $result2->fetchrow_array;
    $result2->finish;
1071
    if (($osname,$cmdline,$rpms,$deltas,$startupcmd,$tarfiles,
1072
	 $failureaction,$routertype) = $result->fetchrow_array) {
1073
1074
	my $osid;
	if (!defined($osname) || $osname eq "") {
1075
1076
	    $osid = $defosids{$type};
	}
1077
1078
1079
1080
1081
1082
	#
	# Map the user name into a specific OSID in the project or in
	# the OPS project (a default image). 
	# 
	elsif (! ($osid = TBOSID($pid, $osname)) &&
	       ! ($osid = TBOSID(TB_OPSPID, $osname))) {
1083
1084
	    die("*** $0:\n".
		"    Invalid OS $osname in project $pid!\n");
1085
	}
1086
	DBQueryFatal("UPDATE nodes set def_boot_osid=\"$osid\"," .
1087
1088
1089
		       " def_boot_cmd_line='$cmdline'," .
		       " startstatus='none'," .
		       " bootstatus='unknown'," .
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1090
		       " ready=0," .
1091
1092
1093
1094
		       " rpms='$rpms'," .
		       " deltas='$deltas'," .
		       " tarballs='$tarfiles'," .
		       " startupcmd='$startupcmd'," .
1095
1096
		       " failureaction='$failureaction'," .
		       " routertype='$routertype'" .
1097
		       " where node_id='$pnode'");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1098
1099
    } elsif (! defined($lannodes{$p2vmap{$pnode}})) {
	# Delay node
1100
	DBQueryFatal("UPDATE nodes set def_boot_osid=\"" .
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1101
1102
		       $delayosids{$type} . "\"," .
		       " startstatus=\"none\"," .
1103
		       " bootstatus=\"unknown\"," .
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1104
		       " ready=0" .
1105
		       " where node_id=\"$pnode\"");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1106
    }
1107
    $result->finish;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1108
1109
1110
}

foreach $pnode (keys(%p2vmap)) {
1111
1112
1113
1114
1115
1116
    $vnode = $p2vmap{$pnode};
    $i = 1;
    if (defined($nodes{$vnode}) && 
	($nodes{$vnode} eq "shark-shelf")) {
	foreach $shark (@{$sharkshelves{$vnode}}) {
	    $vname = (split(":",$shark))[0];
1117
1118
	    DBQueryFatal("update reserved set vname=\"$vname\" where" .
		     " node_id = \"$pnode-$i\"");
1119
1120
1121
	    $i++;
	}
    } else {
1122
1123
	DBQueryFatal("update reserved set vname=\"$vnode\"" .
		 " where node_id = \"$pnode\"");
1124
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1125
1126
}

1127
1128
foreach $vnodeport (keys(%portbw)) {
    ($vnode,$vport) = split(":",$vnodeport);
1129
1130
1131
1132
    # SHARK HACK
    if (defined($v2pmap{$vnode})) {
	$pnode = $v2pmap{$vnode};
	$pport = $portmap{$vnodeport};
1133
1134
1135
	DBQueryFatal("update interfaces set " .
		" current_speed=\"$portbw{$vnodeport}\"" .
		" where node_id=\"$pnode\" and iface=\"$pport\"");
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
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
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
#
# Upload the tunnels table. These are built for virtual node links. 
#
# First need to assign ports to the servers. To do that need to figure
# out who is a server! We put the server on a real emulab node if
# possible, and otherwise one of the virtual nodes. Also, we want to share
# the server amongst more than one link, if possible, since a server can
# handle more than one tunnel. So, make sure that only one port is assigned
# per server node.
#
my %lantotunnelserver = ();
my %vnodetotunnelport = ();
my $secretkey;

foreach $lan (keys(%vnodelans)) {
    my $server;
    my ($vnode,$vport);

    #
    # Pick one of the members to be the server.
    # 
    foreach $member (@{$tunnels{$lan}}) {
	($vnode,$vport) = split(":",$member);

	if (! $isvirtnode{$vnode} &&
	    ! defined($lantotunnelserver{$lan})) {
	    $server = $vnode;
	}
    }
    # If no one qualified, pick the last one.
    if (! defined($server)) {
	$server = $vnode;
    }
    $lantotunnelserver{$lan} = $server;

    # Assign a port, but only the first time chosen.
    if (! $vnodetotunnelport{$server}) {
	$vnodetotunnelport{$server} = nextipportnum($p2pmap{$v2pmap{$server}});
    }
}

printdb "Tunnels\n";
foreach $lan (keys(%vnodelans)) {
    printdb " LAN: $lan\n";

    my @members = @{$tunnels{$lan}};
    if (@members != 2) {
	die("*** $0:\n".
	    "    Too many members for a tunnel!\n");
    }
    my $server = $lantotunnelserver{$lan};
    my $ipport = $vnodetotunnelport{$server};

    # So we can figure out the peer ip.
    my ($member0,$member1) = @members;
    my $node0  = (split(":",$member0))[0];
    my $node1  = (split(":",$member1))[0];
    
    foreach $member (@members) {
	my ($vnode,$vport) = split(":",$member);
	my $pnode     = $v2pmap{$vnode};
	my $isserver  = ($server eq $vnode ? 1 : 0);
	my $peervnode = ($vnode eq $node0 ? $node1 : $node0);
	my $peerpnode = $v2pmap{$peervnode};
	my $ip;

	#
	# Need to map the server to the control net interface of the
	# physical node.
	#
	if (! TBControlNetIP($peerpnode, \$ip)) {
	    die("*** $0:\n".
		"    No Control Network IP for $peerpnode!\n");
	}
	
        printdb "  vnode:$vnode port:$ipport isserver:$isserver peer_ip:$ip ".
	        "inet:$ips{$member}\n";

	if (!defined($secretkey)) {
	    $secretkey = TBGenSecretKey();
	}
	
	DBQueryFatal("insert into tunnels ".
		     " (pid, eid, node_id, vname, isserver, ".
		     "  port, peer_ip, assigned_ip, password) ".
		     "values ('$pid', '$eid', '$pnode', '$lan', $isserver, ".
		     "         $ipport, '$ip', '$ips{$member}','$secretkey')");
    }
}

1229
1230
1231
#
# Post pass the event list. At present, all LINK operations apply to
# the delay node that is in the middle of it. Rewrite the vnode in
1232
1233
# the event list. This info becomes stale when the experiment is swapped
# out, but thats okay since it gets redone at swapin.
1234
1235
1236
1237
#
$eventlist_result =
    DBQueryFatal("select ex.idx,ex.vname,r.vname ".
		 " from eventlist as ex ".
1238
1239
		 "left join delays as d on ".
		 " ex.vname=d.vname and ex.pid=d.pid and ex.eid=d.eid ".
1240
1241
1242
1243
1244
1245
1246
1247
1248
		 "left join reserved as r on r.node_id=d.node_id ".
		 "left join event_objecttypes as ob on ob.idx=ex.objecttype ".
		 "where ob.type='LINK' and ex.pid='$pid' and ex.eid='$eid'");

while (my ($idx,$vname,$vnode) = $eventlist_result->fetchrow_array) {
    DBQueryFatal("update eventlist set vnode='$vnode' ".
		 "where idx=$idx and pid='$pid' and eid='$eid'");
}

1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
#
# Delay nodes also require that we augment the virt_agents list, since
# that holds the mapping between a link and the node where it is controlled.
# This is for the benefit of the event scheduler and dynamic events, which
# need to map a link name on the fly, instead of from the static list we
# munged above. 
#
foreach $delay (keys(%delays)) {
    ($pnode,undef,undef,$vname) = @{$delays{$delay}};
    $vnode = $p2vmap{$pnode};

    DBQueryFatal("replace into virt_agents ".
		 " (pid, eid, vname, vnode, objecttype) ".
		 " select '$pid', '$eid', '$vname', '$vnode', ".
		 "   idx from event_objecttypes where ".
		 "   event_objecttypes.type='LINK'");
}

1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
#
# Must post pass the trafgens list to make sure no ip port collisions.
#
$query_result =
    DBQueryFatal("select vnode,vname,port,target_vnode,target_vname ".
		 "from virt_trafgens where pid='$pid' and eid='$eid'");

if ($query_result->numrows) {
    while (my ($vnode,$vname,$port,$target_vnode,$target_vname) =
	   $query_result->fetchrow_array()) {

	my $pnode    = $v2pmap{$vnode};
	my $ipport   = nextipportnum($p2pmap{$pnode});

	DBQueryFatal("update virt_trafgens set port=$ipport ".
		     "where pid='$pid' and eid='$eid' and ".
		     " vnode='$vnode' and vname='$vname'");
	
	DBQueryFatal("update virt_trafgens set target_port=$ipport ".
		     "where pid='$pid' and eid='$eid' and ".
		     " vnode='$target_vnode' and vname='$target_vname'");
    }
}
1290

1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
######################################################################
# Subroutines
######################################################################

# min(a,b)
# Returns the minimum of a and b.
sub min {
    my ($a,$b) = @_;
    return ($a < $b ? $a : $b);
};

# getbandwidth(bw)
# Returns the lowest ok bandwidth that is greater than or equal to
# the one passed.
sub getbandwidth {
1306
    my $targetbandwidth= BWConvert($_[0]);
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
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
    my $bandwidth;
    my $best = 10000000000;
    foreach $bandwidth (keys(%okbandwidths)) {
	if (($bandwidth >= $targetbandwidth) && ($bandwidth < $best)) {
	    $best = $bandwidth;
	}
    }
    return $best;
};

# getnodeport(s)
# Takes a ports result from assign (mac0,mac1) and returns the
# first non-null one.
sub getnodeport {
    $macstring=$_[0];
    ($A,$B) = ($macstring =~ /^\(([^,]+),([^,]+)\)$/);
    if ($A ne "(null)") {
	return $A;
    } else {
	return $B;
    }
};

# isdelay(pnodeport)
# Takes a physical nodeport and retruns 1 if the node is a delay node.
sub isdelay {
    my $pnodeport = $_[0];

    my $node = (split(":",$pnodeport))[0];
    if (($p2vmap{$node} =~ m|^delay/|) ||
	($p2vmap{$node} =~ m|^sdelay.|)) {
	return 1;
    } 
    return 0;
};

# find_vport vnode virtlan
# This finds and returns the virtual port of vnode that it is
# virtlan and not in portmap.
sub find_vport {
    my ($vnode,$virtlan) = @_;
    my $portlan;
    my $vport;
    my $lan;
    # Shark Hack
    if ($nodes{$vnode} eq "shark-shelf") {
	return "0";
    }
    # End Shark Hack
    foreach $portlan (@{$nodelans{$vnode}}) {
	($vport,$lan) = split(":",$portlan);
	if (($virtlan eq $lan) &&
	    (! defined($portmap{"$vnode:$vport"}))) {
	    return $vport;
	}
    }
    return "";
};

1366
1367
1368
1369
1370
1371
1372
1373
1374
#
# Bump and return the IP port number for a physical node. This is
# required for multiplexing virtual nodes on a physical node. It has
# to be done after node assignment of course.
#
# port,-1 on success/failure.
# 
sub nextipportnum($) {
    my ($node) = @_;
1375

1376
    DBQueryFatal("lock tables nodeipportnum write");
1377

1378
1379
1380
1381
1382
1383
1384
    my $query_result =
	DBQueryFatal("select port from nodeipportnum where node_id='$node'");
    
    if (! $query_result->numrows) {
	DBQueryFatal("insert into nodeipportnum (node_id) values ('$node')");
	DBQueryFatal("unlock tables");
	return nextipportnum($node, $pport);
1385
    }
1386
    my ($port) = $query_result->fetchrow_array;
1387

1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
    if ($port < 1024 || $port > 60000) {
	DBQueryFatal("replace into nodeipportnum (node_id) values ('$node')");
	DBQueryFatal("unlock tables");
	return nextipportnum($node, $pport);
    }
    
    DBQueryFatal("update nodeipportnum set port=${port}+1 ".
		 "where node_id='$node'");
    DBQueryFatal("unlock tables");
    
    return $port;
}