ptopgen.in

#!/usr/bin/perl -w

# Settings - Change these to your particular network.

# Switch interface speed - In Mbps
$switch_speed = 100;

# Omit types - Include all types of node that will never be used.
%omit_types = (
	       'APC', 1,
	       );

######################################################################

use DBI;
my $TBDB = "@TBDBNAME@";
my $dbh = DBI->connect("DBI:mysql:database=$TBDB;host=localhost");

@switches=();
%used_switches=();

# Read class/type maps
$sth = $dbh->prepare("select class,type,delay_capacity from node_types");
$sth->execute;
while (($class,$type,$delaycapacity) = $sth->fetchrow_array) {
    $classes{$type} = $class;
    $nodetypes{$type} = $delaycapacity
}
$sth->finish;

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


# Find available nodes
$sth = $dbh->prepare("select a.node_id,a.type from" .
		     " nodes as a left join reserved as b" .
		     " on a.node_id=b.node_id" .
		     " where b.node_id is null");
$sth->execute;		
while (($node,$type) = $sth->fetchrow_array) {
    if (defined($omit_types{$type})) {next;}

    # Shark hack
    if (($shelf,$number) = ($node =~ /^sh(\d+)-(\d+)/)) {
	if ($number == 1) {
	    $nodes{"sh$shelf"} = "shark-shelf";
	}
    } else {
	if ($classes{$type} eq "switch") {
	    push(@switches,$node);
	}
	$nodes{$node} = $type;
    }
}
$sth->finish;


$sharklinks = "";
foreach $node (keys(%nodes)) {
    if ($node =~ /^sh/) {
	print "node $node shark-shelf:1\n";
	$sharklinks .= "link link-$node $node:$node/eth0 cisco 100 1\n";
    } else {
	if ($classes{$nodes{$node}} eq "switch") {
	    $text = "node $node switch:1";
	} else {
	    $text = "node $node $nodes{$node}:1 $classes{$nodes{$node}}:1";
	    $delay_capacity = $nodetypes{$nodes{$node}};
	    if ($delay_capacity > 0) {
		$text .= " delay:$delay_capacity";
	    }
	}
	print "$text\n";
    }
}

# Read interfaces
$sth = $dbh->prepare("SELECT node_id,card,port,iface,interface_type" .
		     " from interfaces");
$sth->execute;
while (($node,$card,$port,$iface,$type) = $sth->fetchrow_array) {
    $interfacemap{"$node:$card:$port"} = $iface;
    if ($type ne "") {
	$interfacetypes{"$node:$card:$port"} = $type;
    }
}
$sth->finish;

# Read interface types
$sth = $dbh->prepare("SELECT type,max_speed from interface_types");
$sth->execute;
while (($type,$speed) = $sth->fetchrow_array) {
    $interfacespeeds{$type} = $speed;
}
$sth->finish;

# Print out links
sub get_iface {
    ($node,$card,$port) = @_;
    if (defined($interfacemap{"$node:$card:$port"})) {
	return $interfacemap{"$node:$card:$port"};
    } else {
	return "(null)";
    }
};
sub get_ifacebw {
    ($node,$card,$port) = @_;
    if (defined($interfacetypes{"$node:$card:$port"})) {
	return $interfacespeeds{$interfacetypes{"$node:$card:$port"}};
    } else {
	return $switch_speed;
    }
};

$sth = $dbh->prepare("SELECT node_id1,card1,port1,node_id2,card2,port2" .
 		    " from wires where type=\"Node\"");
$sth->execute;
while (($node1,$card1,$port1,$node2,$card2,$port2) = 
       $sth->fetchrow_array) {
    if (defined($nodes{$node1}) && defined($nodes{$node2})) {
	$iface1 = get_iface($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 = $iface2bw;
	}
	if ($classes{$nodes{$node2}} eq "switch") {
	    $used_switches{$node2} = 1;
	}
	# !!! - 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";
    }
}
$sth->finish;

print $sharklinks;

# 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 100000 1000\n";
    }
}