ptopgen.in 9.4 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.
#
$result =
    DBQueryFatal("select a.node_id,a.type from nodes as a ".
		 "left join reserved as b on a.node_id=b.node_id ".
		 "left join reserved as m on a.phys_nodeid=m.node_id ".
		 "left join nodes as n on a.phys_nodeid=n.node_id ".
117 118 119 120 121 122
		 "where b.node_id is null and ".
		 "      a.type!='pc601' and ".
		 "      (a.role='testnode' or ".
		 "       (a.role='virtnode' and n.status='up' and ".
		 "        (m.node_id is null or ".
		 "         m.pid!='$DEADPID' or m.eid!='$DEADEID')))");
123

124
while (($node,$type) = $result->fetchrow_array) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
125 126 127 128 129 130 131 132 133
    # Shark hack
    if (($shelf,$number) = ($node =~ /^sh(\d+)-(\d+)/)) {
	if ($number == 1) {
	    $nodes{"sh$shelf"} = "shark-shelf";
	}
    } else {
	$nodes{$node} = $type;
    }
}
134
$result->finish;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
135 136


137
$sharklinks = "";
Shashi Guruprasad's avatar
Shashi Guruprasad committed
138 139 140 141

# XXX NSE hack


Leigh B. Stoller's avatar
Leigh B. Stoller committed
142 143 144 145
foreach $node (keys(%nodes)) {
    if ($node =~ /^sh/) {
	print "node $node shark-shelf:1\n";
    } else {
146 147 148 149
	$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
150 151 152 153 154 155 156 157
##################################################################################
### 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
#################################################################################
            $text .= " sim:100000";
Leigh B. Stoller's avatar
Leigh B. Stoller committed
158 159 160 161 162
	}
	print "$text\n";
    }
}

163
# Read interfaces
164
$result = DBQueryFatal("SELECT node_id,card,port,iface,interface_type" .
165
		     " from interfaces");
166
while (($node,$card,$port,$iface,$type) = $result->fetchrow_array) {
167 168 169 170 171
    $interfacemap{"$node:$card:$port"} = $iface;
    if ($type ne "") {
	$interfacetypes{"$node:$card:$port"} = $type;
    }
}
172
$result->finish;
173 174

# Read interface types
175 176
$result = DBQueryFatal("SELECT type,max_speed from interface_types");
while (($type,$speed) = $result->fetchrow_array) {
177 178
    $interfacespeeds{$type} = $speed;
}
179
$result->finish;
180

181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199
# 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;



200
$result = DBQueryFatal("SELECT node_id1,card1,port1,node_id2,card2,port2" .
201
 		    " from wires where type=\"Node\" or type=\"Trunk\"");
202
while (($node1,$card1,$port1,$node2,$card2,$port2) = 
203
       $result->fetchrow_array) {
204
    if ((defined($nodes{$node1}) || defined($switches{$node1})) && 
205
	(defined($nodes{$node2}) || defined($switches{$node2}))) {
206 207 208 209 210 211 212 213 214
	$iface1 = get_iface($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 = $iface2bw;
	}
215
	if (defined($switches{$node2})) {
216 217
	    $used_switches{$node2} = 1;
	}
218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234
	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";
	}
    } 
235
}
236
$result->finish;
237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286

#
# 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;
		}
	    }
	}
    }
}

287 288 289 290
foreach $interconnect (keys(%interconnects)) {
    ($src,$dst) = split(":",$interconnect);
    print "link link-$interconnect $src $dst $interconnects{$interconnect} 1\n";
}
291 292 293

print $sharklinks;

Leigh B. Stoller's avatar
Leigh B. Stoller committed
294
# Add a bunch of LANs
295 296 297
foreach $switch (keys(%used_switches)) {
    for ($i = 0;$i <= 20;$i++) {
	print "node lan-$switch-$i lan:1\n";
298 299 300
	print "link link-lan-$switch-$i lan-$switch-${i}:lan-$switch-$i " .
	    "$switch ".
	    "$lannode_switch2switch_speed $lannode_switch2switch_links\n";
301
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
302
}
303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325


# 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"}};
326 327 328
    }
    else {
	return $default_switchport_speed;
329 330
    }
}
331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348

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 ();
    }
}