ptopgen.in 9.56 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

#
# EMULAB-COPYRIGHT
5
# Copyright (c) 2000-2003 University of Utah and the Flux Group.
Leigh B. Stoller's avatar
Leigh B. Stoller committed
6 7 8
# All rights reserved.
#

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

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

19 20

# Settings - Change these to your particular network.
21 22 23 24 25 26 27 28 29 30 31 32 33 34
#
# 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;
35 36 37 38 39 40 41 42 43 44

#
# 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
#
# 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.
#
112 113
my $pc601hack_only = "a.type='pc601' and";
my $pc601hack_none = "a.type!='pc601' and";
114
my $pcvmhack       = "(a.type!='pcvm600' and a.type!='pcvm850') and ";
Chad Barb's avatar
Chad Barb committed
115

116 117 118 119
$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 ".
120 121
		 "left join nodes as n on a.phys_nodeid=n.node_id ".
		 "where b.node_id is null and $pcvmhack ".
122
		 "      $pc601hack_none ".
123
		 "      (a.role='testnode' or ".
124
		 "       (a.role='virtnode' and n.status='up' and ".
125 126
		 "        (m.node_id is null or ".
		 "         m.pid!='$DEADPID' or m.eid!='$DEADEID')))");
127

128
while (($node,$type) = $result->fetchrow_array) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
129 130 131 132 133 134 135 136 137
    # Shark hack
    if (($shelf,$number) = ($node =~ /^sh(\d+)-(\d+)/)) {
	if ($number == 1) {
	    $nodes{"sh$shelf"} = "shark-shelf";
	}
    } else {
	$nodes{$node} = $type;
    }
}
138
$result->finish;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
139 140


141
$sharklinks = "";
Shashi Guruprasad's avatar
Shashi Guruprasad committed
142 143 144 145

# XXX NSE hack


Leigh B. Stoller's avatar
Leigh B. Stoller committed
146 147 148 149
foreach $node (keys(%nodes)) {
    if ($node =~ /^sh/) {
	print "node $node shark-shelf:1\n";
    } else {
150 151 152 153
	$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
154 155 156 157 158 159 160 161
##################################################################################
### 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
#################################################################################
            $text .= " sim:100000";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
162 163 164 165 166
	}
	print "$text\n";
    }
}

167
# Read interfaces
168
$result = DBQueryFatal("SELECT node_id,card,port,iface,interface_type" .
169
		     " from interfaces");
170
while (($node,$card,$port,$iface,$type) = $result->fetchrow_array) {
171 172 173 174 175
    $interfacemap{"$node:$card:$port"} = $iface;
    if ($type ne "") {
	$interfacetypes{"$node:$card:$port"} = $type;
    }
}
176
$result->finish;
177 178

# Read interface types
179 180
$result = DBQueryFatal("SELECT type,max_speed from interface_types");
while (($type,$speed) = $result->fetchrow_array) {
181 182
    $interfacespeeds{$type} = $speed;
}
183
$result->finish;
184

185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203
# 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;



204
$result = DBQueryFatal("SELECT node_id1,card1,port1,node_id2,card2,port2" .
205
 		    " from wires where type=\"Node\" or type=\"Trunk\"");
206
while (($node1,$card1,$port1,$node2,$card2,$port2) = 
207
       $result->fetchrow_array) {
208
    if ((defined($nodes{$node1}) || defined($switches{$node1})) && 
209
	(defined($nodes{$node2}) || defined($switches{$node2}))) {
210 211 212 213 214 215 216 217 218
	$iface1 = get_iface($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 = $iface2bw;
	}
219
	if (defined($switches{$node2})) {
220 221
	    $used_switches{$node2} = 1;
	}
222 223 224 225 226 227 228 229 230 231 232 233 234 235
	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" .
236
		" $node2:$iface2 $bw 1\n";
237 238
	}
    } 
239
}
240
$result->finish;
241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290

#
# 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;
		}
	    }
	}
    }
}

291 292
foreach $interconnect (keys(%interconnects)) {
    ($src,$dst) = split(":",$interconnect);
293
    print "link link-$interconnect $src $dst $interconnects{$interconnect} 1\n";
294
}
295 296 297

print $sharklinks;

298 299 300 301 302 303 304 305 306 307 308
# Add a bunch of LANs
foreach $switch (keys(%used_switches)) {
    for ($i = 0;$i <= 20;$i++) {
	print "node lan-$switch-$i lan:1\n";
	print "link link-lan-$switch-$i lan-$switch-${i}:lan-$switch-$i " .
	    "$switch ".
	    "$lannode_switch2switch_speed $lannode_switch2switch_links\n";
    }
}


309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329
# 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"}};
330 331 332
    }
    else {
	return $default_switchport_speed;
333 334
    }
}
335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352

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 ();
    }
}