ptopgen.in 9.35 KB
Newer Older
Leigh B. Stoller's avatar
Leigh B. Stoller committed
1
#!/usr/bin/perl -w
Leigh B. Stoller's avatar
Leigh B. Stoller committed
2
3
4
5
6
7
8

#
# EMULAB-COPYRIGHT
# Copyright (c) 2000-2002 University of Utah and the Flux Group.
# All rights reserved.
#

9
10
use English;
use Getopt::Std;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
11

12
13
14
15
16
17
18
sub usage()
{
    print STDOUT "Usage: ptopgen [-s switch]\n";
    exit(-1);
}
my  $optlist = "s:";

19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

# Settings - Change these to your particular network.
#
# Explanation from Mac:
#
# These are for the imaginary "lan nodes". Internally the way we map
# lans is as a bunch of machines connected in a star to a "lan node"
# that has infinite bw basically, and an infinite number of connections
# available to it. So the first big number is BW (100Gbps), and the
# 1000 means it has 1000 connections to the switch. That number is
# plenty high as it is, since our limit on one switch is under 400.
#
# Speed in in Kbs!
#
my $lannode_switch2switch_speed = 100000000;
my $lannode_switch2switch_links = 1000;

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

45
46
######################################################################

47
my $TBROOT = "@prefix@";
48
use lib '@prefix@/lib';
49
require exitonwarn;
50
use libdb;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
51

52
53
my $TRACK_INTERSWITCH_BANDWIDTH = "@TRACK_INTERSWITCH_BANDWIDTH@";

54
%switches=();
55
%used_switches=();
56
57
my $switchtouse;

58
59
60
my $DEADPID = NODEDEAD_PID();
my $DEADEID = NODEDEAD_EID();

61
62
63
64
65
66
67
68
69
70
71
72
73
74
#
# Parse command arguments. Once we return from getopts, all that should be
# left are the required arguments.
#
%options = ();
if (! getopts($optlist, \%options)) {
    usage();
}
if (@ARGV) {
    usage();
}
if (defined($options{"s"})) {
    $switchtouse = $options{"s"};
}
75

76
# Read class/type maps
77
78
my $result = DBQueryFatal("select class,type,delay_capacity from node_types");
while (($class,$type,$delaycapacity) = $result->fetchrow_array) {
79
    $classes{$type} = $class;
80
    $nodetypes{$type} = $delaycapacity;
81
}
82
$result->finish;
83
84
85
86

# switches can't delay
$nodetypes{"switch"} = 0;

87
# Print switches
88
89
90
91
92
93
94
95
96
97
98
99
100
if (defined($switchtouse)) {
    print "node $switchtouse switch:1\n";
    $switches{$switchtouse} = 1;
}
else {
    $result =
	DBQueryFatal("select node_id from nodes where role = \"testswitch\"");

    while (($switch) = $result->fetchrow_array) {
	print "node $switch switch:1\n";
	$switches{$switch} = 1;
    }
    $result->finish;
101
}
102

Leigh B. Stoller's avatar
Leigh B. Stoller committed
103
# Find available nodes
104
105
106
107
108
109
110
111
112
113
114
115
116
#
# VIRTNODES HACK: If the node is a virtual node, then in addition to
# to being free, the underlying physnode has to either be free, or
# not in the hwdown group. Either way, the the underlying physnode has
# to be "up", as determined by the autostatus stuff; this will prevent us
# from allocating a dead virtual node to an experiment. 
# This is especially hacky. We need another mechanism for this.
#
$result =
    DBQueryFatal("select a.node_id,a.type from nodes as a ".
		 "left join reserved as b on a.node_id=b.node_id ".
		 "left join reserved as m on a.phys_nodeid=m.node_id ".
		 "left join nodes as n on a.phys_nodeid=n.node_id ".
117
118
119
120
		 "where b.node_id is null and (a.role='testnode' or ".
		 "      (a.role='virtnode' and n.status='up' and ".
		 "       (m.node_id is null or ".
		 "        m.pid!='$DEADPID' or m.eid!='$DEADEID')))");
121

122
while (($node,$type) = $result->fetchrow_array) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
123
124
125
126
127
128
129
130
131
    # Shark hack
    if (($shelf,$number) = ($node =~ /^sh(\d+)-(\d+)/)) {
	if ($number == 1) {
	    $nodes{"sh$shelf"} = "shark-shelf";
	}
    } else {
	$nodes{$node} = $type;
    }
}
132
$result->finish;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
133
134


135
$sharklinks = "";
Shashi Guruprasad's avatar
Shashi Guruprasad committed
136
137
138
139

# XXX NSE hack


Leigh B. Stoller's avatar
Leigh B. Stoller committed
140
141
142
143
foreach $node (keys(%nodes)) {
    if ($node =~ /^sh/) {
	print "node $node shark-shelf:1\n";
    } else {
144
145
146
147
	$text = "node $node $nodes{$node}:1 $classes{$nodes{$node}}:1";
	$delay_capacity = $nodetypes{$nodes{$node}};
	if ($delay_capacity > 0) {
	    $text .= " delay:$delay_capacity";
Shashi Guruprasad's avatar
Shashi Guruprasad committed
148
149
150
151
152
153
154
155
##################################################################################
### NSE Node hack. Instead of adding sim nodes into the database schema,
### I'm just adding it here for now untill we can figure out how to add sim nodes
### into the nodes table.
### One assumption is that if we the node type can support delay nodes,
### then it is a local node and therefore we can support sim nodes
#################################################################################
            $text .= " sim:100000";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
156
157
158
159
160
	}
	print "$text\n";
    }
}

161
# Read interfaces
162
$result = DBQueryFatal("SELECT node_id,card,port,iface,interface_type" .
163
		     " from interfaces");
164
while (($node,$card,$port,$iface,$type) = $result->fetchrow_array) {
165
166
167
168
169
    $interfacemap{"$node:$card:$port"} = $iface;
    if ($type ne "") {
	$interfacetypes{"$node:$card:$port"} = $type;
    }
}
170
$result->finish;
171
172

# Read interface types
173
174
$result = DBQueryFatal("SELECT type,max_speed from interface_types");
while (($type,$speed) = $result->fetchrow_array) {
175
176
    $interfacespeeds{$type} = $speed;
}
177
$result->finish;
178

179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
# Read interface switches
$result = DBQueryFatal("SELECT node_id1, iface, node_id2 FROM wires AS w " .
	"LEFT JOIN interfaces as i ON w.node_id1=i.node_id AND w.card1=i.card");
while (($node,$iface,$switch) = $result->fetchrow_array) {
    if ($node && $iface) {
	$interfaceswitches{"$node:$iface"} = $switch;
    }
}
$result->finish;

# Read interface cards and ports
$result = DBQueryFatal("SELECT node_id, iface, card, port FROM interfaces");
while (($node,$iface,$card,$port) = $result->fetchrow_array) {
    $interfacecardports{"$node:$iface"} = [$card,$port];
}
$result->finish;



198
$result = DBQueryFatal("SELECT node_id1,card1,port1,node_id2,card2,port2" .
199
 		    " from wires where type=\"Node\" or type=\"Trunk\"");
200
while (($node1,$card1,$port1,$node2,$card2,$port2) = 
201
       $result->fetchrow_array) {
202
    if ((defined($nodes{$node1}) || defined($switches{$node1})) && 
203
	(defined($nodes{$node2}) || defined($switches{$node2}))) {
204
205
206
207
208
209
210
211
212
	$iface1 = get_iface($node1,$card1,$port1);
	$iface2 = get_iface($node2,$card2,$port2);
	$iface1bw = get_ifacebw($node1,$card1,$port1);
	$iface2bw = get_ifacebw($node2,$card2,$port2);
	if ($iface1bw < $iface2bw) {
	    $bw = $iface1bw;
	} else {
	    $bw = $iface2bw;
	}
213
	if (defined($switches{$node2})) {
214
215
	    $used_switches{$node2} = 1;
	}
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
	if (defined($switches{$node1})) {
	    $used_switches{$node1} = 1;
	}
	if (defined($switches{$node1}) && defined($switches{$node2})) {
	    # interswitch link
	    if (defined($interconnects{"$node1:$node2"})) {
		$interconnects{"$node1:$node2"} += $bw;
	    } else {
		$interconnects{"$node1:$node2"} = $bw;
	    }
	} else {
	    # !!! - Here we use our knowledge that in the wires table links
	    # to the switch always come as node2.
	    print "link link-$node1:$iface1-$node2:$iface2 $node1:$node1/$iface1" .
		" $node2:$iface2 $bw 1\n";
	}
    } 
233
}
234
$result->finish;
235
236
237
238
239
240
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
282
283
284

#
# If we're supposed to track interswitch bandwidth, subtract out the amount
# that's already in use
#
if ($TRACK_INTERSWITCH_BANDWIDTH) {
    #
    # Get a list of all VLANs
    #
    my $result = DBQueryFatal("SELECT virtual, members FROM vlans");
    while (my ($virtual, $members) = $result->fetchrow()) {
	#
	# Split apart the space-separated list of members
	#
	my @members = split /\s+/, $members;
	my %switches = ();
	foreach my $member (@members) {
	    my ($node,$iface) = split /:/, $member;
	    my $switch = get_ifaceswitch($node,$iface);
	    my ($card, $port) = get_ifacecardport($node,$iface);
	    my $bw = get_ifacebw($node,$card,$port);
	    $switches{$switch} += $bw;
	}

	#
	# Check to see if more than one switch was found among the member
	# list, and if so, go through all the pairs
	#
	my @switches = keys %switches;
	if (@switches > 1) {
	    for (my $i = 0; $i < (@switches -1); $i++) {
		my $switch1 = $switches[$i];
		my $switch2 = $switches[$i+1];
		my $bw = $switches{$switch1};
		if ($switches{$switch2} < $bw) {
			$bw = $switches{$switch2};
		}
		#
		# The trunk link could be listed in either order
		#
		if ($interconnects{"$switch1:$switch2"}) {
		    $interconnects{"$switch1:$switch2"} -= $bw;
		} elsif ($interconnects{"$switch2:$switch1"}) {
		    $interconnects{"$switch2:$switch1"} -= $bw;
		}
	    }
	}
    }
}

285
286
287
288
foreach $interconnect (keys(%interconnects)) {
    ($src,$dst) = split(":",$interconnect);
    print "link link-$interconnect $src $dst $interconnects{$interconnect} 1\n";
}
289
290
291

print $sharklinks;

Leigh B. Stoller's avatar
Leigh B. Stoller committed
292
# Add a bunch of LANs
293
294
295
foreach $switch (keys(%used_switches)) {
    for ($i = 0;$i <= 20;$i++) {
	print "node lan-$switch-$i lan:1\n";
296
297
298
	print "link link-lan-$switch-$i lan-$switch-${i}:lan-$switch-$i " .
	    "$switch ".
	    "$lannode_switch2switch_speed $lannode_switch2switch_links\n";
299
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
300
}
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323


# Print out links
sub get_iface {
    ($node,$card,$port) = @_;
    if (defined($interfacemap{"$node:$card:$port"})) {
	return $interfacemap{"$node:$card:$port"};
    } else {
	# shark hack
	if ($node =~ /^sh/) {
	    return "eth0";
	} else {
	    return "(null)";
	}
	# end shark hack 
    }
};

# Find the bandwidth for an interface
sub get_ifacebw {
    ($node,$card,$port) = @_;
    if (defined($interfacetypes{"$node:$card:$port"})) {
	return $interfacespeeds{$interfacetypes{"$node:$card:$port"}};
324
325
326
    }
    else {
	return $default_switchport_speed;
327
328
    }
}
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346

sub get_ifaceswitch {
    ($node,$iface) = @_;
    if (defined($interfaceswitches{"$node:$iface"})) {
	return $interfaceswitches{"$node:$iface"};
    } else {
	return undef;
    }
}

sub get_ifacecardport {
    ($node,$iface) = @_;
    if (defined($interfacecardports{"$node:$iface"})) {
	return @{$interfacecardports{"$node:$iface"}};
    } else {
	return ();
    }
}