+#!/usr/bin/perl
+
+# a hack to display OLSR topology information
+#
+# copyleft 2004 Bruno Randolf <br1@subnet.at>
+# licensed under the GPL
+
+use IO::Socket;
+use Getopt::Long;
+
+$TOPPATH = "/tmp";
+$NAME = "topology";
+$FILENAME = "$TOPPATH/$NAME.dot";
+$EXT = "png";
+$SERVER = "localhost";
+$PORT = "2004";
+$FULLSCREEN = 0;
+$HELP = 0;
+$KEEP = 0;
+$BGCOLOR = "black";
+$STYLE = 1;
+$SIZE = "8,8";
+$ROOTWIN = 0;
+$ONCE = 0;
+$GRAPH = 1;
+$SHOW = 1;
+$FONTNAME = "Courier";
+$FONTSIZE = 12;
+$LINEWIDTH = 0;
+$LINECOLOR = 0;
+$RESOLV = 0;
+
+GetOptions ("server=s" => \$SERVER,
+ "port=s" => \$PORT,
+ "fullscreen!" => \$FULLSCREEN,
+ "help!" => \$HELP,
+ "keep!" => \$KEEP,
+ "bgcolor=s" => \$BGCOLOR,
+ "fontname=s" => \$FONTNAME,
+ "fontsize=s" => \$FONTSIZE,
+ "style=i" => \$STYLE,
+ "size=s" => \$SIZE,
+ "rootwin!" => \$ROOTWIN,
+ "once!" => \$ONCE,
+ "graph!" => \$GRAPH,
+ "show!" => \$SHOW,
+ "linewidth!" => \$LINEWIDTH,
+ "linecolor!" => \$LINECOLOR,
+ "resolv" => \$RESOLV,
+ );
+
+if ($HELP) {
+ print << "EOF";
+usage: $0 [ --server SERVER ] [--port PORT] [--fullscreen] [--keep]
+
+a hack to display OLSR topology information
+
+options:
+ --server SERVER connect to OLSR node (default: localhost)
+ --port PORT connect to port (default: 2004)
+ --bgcolor background color (default: black)
+ --fontname font name (default: Courier)
+ --fontsize font size (default: 12)
+ --style drawing style 1, 2 or 3 (default:1)
+ --size X,Y image size in inches for graphviz (default: 8,8)
+ --[no]fullscreen display fullscreen (default: off)
+ --[no]rootwin display in root window (default: off)
+ --[no]graph genereate graphics (default: on)
+ --[no]show display the graphics (default: on)
+ --[no]once run only 1 time, then exit (default: run forever)
+ --[no]linewith change line width according to metric (default: off)
+ --[no]linecolor change line color according to metric (default: off)
+ --[no]resolv resolv hostnames (default: off)
+ --[no]keep keep the .dot files with timestamp in /tmp (default: off)
+
+requires the "graphviz" and "imagemagick" packages installed
+and the "olsrd_dot_draw" plugin configured on the olsr node
+
+EOF
+ exit;
+}
+
+
+`touch $TOPPATH/$NAME.$EXT`;
+
+$remote = IO::Socket::INET->new(
+ Proto => "tcp",
+ PeerAddr => $SERVER,
+ PeerPort => $PORT,
+ )
+ or die "cannot connect to port $PORT at $SERVER!\nis the olsrd_dot_draw plugin loaded and configured to allow connections from this host?\n";
+
+$f;
+$start = 1;
+
+$FULLOPT = "-backdrop -background black" if $FULLSCREEN;
+
+if ($STYLE == 1) {
+ $DOT_CMD = "neato -Tpng -Gsize=${SIZE} -Gbgcolor=${BGCOLOR} -Gsplines=true -Nstyle=filled -Nfontname=${FONTNAME} -Nfontsize=${FONTSIZE} -Efontname=${FONTNAME} -Efontsize=${FONTSIZE} -Ncolor=white -Nfillcolor=white -Ecolor=grey -Elen=4 -Earrowsize=2 -Efontcolor=white $FILENAME -o $TOPPATH/$NAME.new";
+}
+elsif ($STYLE == 2) {
+ $BGCOLOR = "grey";
+ $DOT_CMD = "dot -Tpng -Gsize=${SIZE} -Elen=2 -Ncolor=grey -Nstyle=filled -Nfillcolor=white -Nfontname=${FONTNAME} -Nfontsize=${FONTSIZE} -Efontname=${FONTNAME} -Efontsize=${FONTSIZE} -Nfontcolor=red -Nwidth=1 -Gbgcolor=$BGCOLOR $FILENAME -o $TOPPATH/$NAME.new";
+}
+elsif ($STYLE == 3) {
+ $BGCOLOR = "\#ff6600";
+ $DOT_CMD = "neato -Tpng -Gsize=10,9 -Gbgcolor=${BGCOLOR} -Gsplines=true -Nstyle=filled -Nfontname=${FONTNAME} -Nfontsize=${FONTSIZE} -Efontname=${FONTNAME} -Efontsize=${FONTSIZE} -Nheight=1.3 -Nwidth=1.3 -Gsplines=true -Ncolor=darkslategrey -Nfillcolor=darkslategrey -Ecolor=black -Elen=4 -Earrowsize=3 $FILENAME -o $TOPPATH/$NAME.new";
+}
+
+
+while ( <$remote> )
+{
+ $line = $_;
+ if ($RESOLV) {
+ $line = resolv( $line );
+ }
+ if ($LINEWIDTH || $LINECOLOR) {
+ $line = draw_thicker_metric_lines( $line );
+ }
+ $f = $f . $line;
+
+ # end of one graph
+ if ( $line =~ /}/i ) {
+ #print "* ";
+ open DOTFILE, ">$FILENAME";
+ print DOTFILE $f;
+ close DOTFILE;
+ $f = "";
+
+ if ($GRAPH) {
+ `$DOT_CMD`;
+ `mv $TOPPATH/$NAME.new $TOPPATH/$NAME.$EXT`;
+ }
+ if ($KEEP) {
+ `cp $TOPPATH/$NAME.dot $TOPPATH/$NAME-\$(date +'%Y-%m-%d-%H-%M-%S').dot`;
+ }
+ if ($SHOW) {
+ if ($ROOTWIN) {
+ system "display -window root -backdrop $TOPPATH/$NAME.$EXT &";
+ }
+ elsif ($start) {
+ system "display $FULLOPT -update 5 $TOPPATH/$NAME.$EXT &";
+ $start = 0;
+ }
+ }
+ exit if $ONCE;
+ }
+}
+
+print "connection closed\n";
+
+
+sub resolv {
+ my $l = shift;
+ if ( $l =~ /\"(.*)\" -> "([^[]*)"(.*)/) {
+ my $from = $1;
+ my $to = $2;
+ my $rest = $3;
+ $from =~ s/\"//g;
+ $to =~ s/\"//g;
+ my $iaddrf = inet_aton($from);
+ my $fromn = gethostbyaddr($iaddrf, AF_INET);
+ my $iaddrt = inet_aton($to);
+ my $ton = gethostbyaddr($iaddrt, AF_INET);
+ $fromn = $from if ! $fromn;
+ $ton = $to if ! $ton;
+ $l = "\"$fromn\" -> \"$ton\"$rest\n";
+ }
+ return $l;
+}
+
+
+sub draw_thicker_metric_lines {
+ # sla 04.04.2005
+ # a hack to draws thicker lines for better metrics (the better the thicker).
+ # colorize the metric lines.
+ #
+ my $l = shift;
+ if ($l =~ /.*label="[0-9].*/){ # recognizion pattern
+ @n=split (/"/,$l); # split the string to get the metric value
+ if ($LINECOLOR) {
+ if ( $n[5]>2 ) { # colorize metrics greater than 2 gray
+ $c="888888";
+ }
+ else { # colorize metrics less than 2 black
+ $c="000000";
+ }
+ $setcol = "color=\"#$c\",";
+ }
+ if ($LINEWIDTH) {
+ if ($n[5]>0 && $n[5]<10) { # thicker lines if 10 > metric > 0
+ $lt=6/$n[5];
+ $at=$lt/2;
+ }
+ else { # at least draw a thin line
+ $lt=1;
+ $at=$lt;
+ }
+ $setwidth = "style=\"setlinewidth($lt)\", arrowsize=$at";
+ }
+ $l =~ s/\]/, $setcol $setwidth]/g; # replace pattern
+ }
+ return $l;
+}
+
+__END__
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