*** /dev/null Sat Nov 23 01:40:47 2024
--- - Sat Nov 23 01:41:13 2024
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*** 0 ****
--- 1,754 ----
+ #!/usr/lpkg/bin/perl
+ ##
+ ## flow2rrd -- store NetFlow data in Round-Robin Database (RRD)
+ ## Copyright (c) 2004 Ralf S. Engelschall <rse@engelschall.com>
+ ##
+
+ require 5.008;
+ use strict;
+ $|++;
+
+ # external requirements
+ use POSIX; # from OpenPKG "perl"
+ use IO::File; # from OpenPKG "perl"
+ use Getopt::Long; # from OpenPKG "perl"
+ use File::Temp; # from OpenPKG "perl"
+ use Data::Dumper; # from OpenPKG "perl"
+ use Date::Parse; # from OpenPKG "perl-time"
+ use Net::Patricia; # from OpenPKG "perl-net"
+ use String::Divert; # from OpenPKG "perl-text"
+ use OSSP::cfg; # from OpenPKG "cfg" [with_perl=yes]
+ use Cflow qw(); # from OpenPKG "flowtools" [with_perl=yes]
+ use RRDs; # from OpenPKG "rrdtools"
+ use CGI; # from OpenPKG "perl-www"
+
+ # Data::Dumper configuration
+ $Data::Dumper::Purity = 1;
+ $Data::Dumper::Indent = 1;
+ $Data::Dumper::Terse = 1;
+
+ # fixed program information
+ my $my = {
+ -progname => 'flow2rrd',
+ -progvers => '0.1.0',
+ -progdate => '20-Dec-2004',
+ };
+
+ # run-time options
+ my $opt = {
+ -help => 0,
+ -version => 0,
+ -verbose => 0,
+ -config => 'flow2rrd.cfg',
+ -store => 0,
+ -graph => 0,
+ -cgi => 0,
+ };
+
+ # parse command line options
+ Getopt::Long::Configure("bundling");
+ my %getopt_spec = (
+ 'h|help' => \$opt->{-help},
+ 'V|version' => \$opt->{-version},
+ 'v|verbose' => \$opt->{-verbose},
+ 'c|config=s' => \$opt->{-config},
+ 's|store' => \$opt->{-store},
+ 'g|graph' => \$opt->{-graph},
+ 'c|cgi' => \$opt->{-cgi},
+ );
+ my $result = GetOptions(%getopt_spec)
+ or die "command line option parsing failed";
+ if ($opt->{help}) {
+ print "usage: $my->{-progname} [<options>] <hostname>\n" .
+ "available options are:\n" .
+ " -h,--help print out this usage page\n" .
+ " -v,--verbose enable verbose run-time mode\n" .
+ " -V,--version print program version\n" .
+ " -c,--config FILE read this configuration file only\n" .
+ " -s,--store store NetFlow values into RRD\n" .
+ " -g,--graph produce RRD graphs\n" .
+ " -c,--cgi produce Web user interface\n";
+ exit(0);
+ }
+ if ($opt->{-version}) {
+ print "$my->{-progname} $my->{-progvers} ($my->{-progdate})\n";
+ exit(0);
+ }
+ if (not $opt->{-store} and not $opt->{-graph} and not $opt->{-cgi}) {
+ die "either --store, --graph or --cgi option has to be given";
+ }
+ if (($opt->{-store} or $opt->{-graph}) and $opt->{-cgi}) {
+ die "option --cgi cannot be combined with --store or --graph";
+ }
+
+ # read configuration file
+ my $io = new IO::File "<$opt->{-config}"
+ or die "unable to read configuration file \"$opt->{-config}\"";
+ my $txt; { local $/; $txt = <$io>; }
+ $io->close();
+
+ # parse configuration files
+ my $cs = new OSSP::cfg::simple;
+ $cs->parse($txt);
+ my $tree = $cs->unpack();
+ undef $cs;
+
+ # extract configuration elements
+ my $cfg = {
+ 'Database' => undef,
+ 'Host' => [],
+ 'Protocol' => {},
+ 'Service' => {},
+ 'Colors' => {},
+ };
+ foreach my $dir (@{$tree}) {
+ if ($dir->[0] eq 'Database') {
+ die "Database already defined" if (defined($cfg->{'Database'}));
+ $cfg->{'Database'} = $dir->[1];
+ }
+ elsif ($dir->[0] eq 'Protocol') {
+ die "Protocol \"$dir->[1]\" already defined" if (defined($cfg->{'Protocol'}->{$dir->[1]}));
+ die "invalid protocol number \"$dir->[2]\"" if ($dir->[2] !~ m|^\d+$|);
+ $cfg->{'Protocol'}->{$dir->[1]} = $dir->[2];
+ }
+ elsif ($dir->[0] eq 'Service') {
+ die "Service \"$dir->[1]\" already defined" if (defined($cfg->{'Service'}->{$dir->[1]}));
+ my $s = [];
+ foreach my $spec (@{$dir}[2..$#{$dir}]) {
+ if (my ($proto, $port) = ($spec =~ m/^(\S+):(\d+|\*)$/)) {
+ die "invalid protocol number \"$proto\""
+ if (not ($proto =~ m|^\d+$| or defined($cfg->{'Protocol'}->{$proto})));
+ push(@{$s}, { -proto => $proto, -port => $port});
+ }
+ else {
+ die "invalid service specification \"$spec\"";
+ }
+ }
+ $cfg->{'Service'}->{$dir->[1]} = $s;
+ }
+ elsif ($dir->[0] eq 'Host') {
+ my $h = {
+ -name => $dir->[1],
+ -target => { -order => [] },
+ };
+ my $seq = $dir->[2];
+ foreach my $dir2 (@{$seq}) {
+ if ($dir2->[0] eq 'Target') {
+ my $t = { -network => [], -service => [] };
+ my $seq2 = $dir2->[2];
+ foreach my $dir3 (@{$seq2}) {
+ if ($dir3->[0] eq 'Network') {
+ $t->{-network} = [ @{$dir3}[1..$#{$dir3}] ];
+ }
+ elsif ($dir3->[0] eq 'Service') {
+ $t->{-service} = [ @{$dir3}[1..$#{$dir3}] ];
+ }
+ else {
+ die "invalid configuration directive \"$dir3->[0]\"";
+ }
+ }
+ $h->{-target}->{$dir2->[1]} = $t;
+ push(@{$h->{-target}->{-order}}, $dir2->[1]);
+ }
+ else {
+ die "invalid configuration directive \"$dir2->[0]\"";
+ }
+ }
+ push(@{$cfg->{'Host'}}, $h);
+ }
+ elsif ($dir->[0] eq 'Colors') {
+ die "Colors \"$dir->[1]\" already defined" if (defined($cfg->{'Colors'}->{$dir->[1]}));
+ my $c = [];
+ my $last = 0x000000;
+ foreach my $spec (@{$dir}[2..$#{$dir}]) {
+ my $this;
+ if ($spec =~ m|^[\da-fA-F]{6}$|) {
+ push(@{$c}, $spec);
+ $last = $spec;
+ }
+ elsif ($spec =~ m|^([-+])([\da-fA-F]{6})(?:\((\d+)\))?$|) {
+ my ($op, $color, $repeat) = ($1, $2, $3);
+ $repeat = 1 if (not defined($repeat));
+ for (my $i = 0; $i < $repeat; $i++) {
+ my $this; eval "\$this = sprintf(\"%06x\", (0x$last $op 0x$color) % 0xffffff)";
+ push(@{$c}, $this);
+ $last = $this;
+ }
+ }
+ else {
+ die "invalid color specification \"$spec\"";
+ }
+ }
+ $cfg->{'Colors'}->{$dir->[1]} = $c;
+ }
+ else {
+ die "invalid configuration directive \"$dir->[0]\"";
+ }
+ }
+ #print Data::Dumper->Dump([$cfg]);
+
+ # hostname/target/service to 15 chars RRD DS name mapping
+ sub make_rrd_ds_name {
+ my ($host, $target, $service) = @_;
+ $host =~ s|[^a-zA-Z0-9_-]||sg;
+ $host = substr($host . ("_"x5), 0, 5);
+ $target =~ s|[^a-zA-Z0-9_-]||sg;
+ $target = substr($target . ("_"x5), 0, 5);
+ $service =~ s|[^a-zA-Z0-9_-]||sg;
+ $service = substr($service . ("_"x5), 0, 5);
+ my $ds_name = sprintf("%s_%s_%s", $host, $target, $service);
+ return $ds_name;
+ }
+
+ ##
+ ## ==== OPERATION MODE 1: STORE DATA ====
+ ##
+
+ if ($opt->{-store}) {
+ my $step = 5*60; # 5 min
+
+ # initialize data
+ my $ctx = &data_init($cfg);
+
+ # scan flow-tools stream on STDIN for NetFlow records
+ Cflow::verbose(1);
+ Cflow::find(sub { &foreach_record($cfg, $ctx) }, "-");
+ sub foreach_record {
+ my ($cfg, $ctx) = @_;
+
+ # determine time slot
+ my $t = $Cflow::endtime;
+ if (not defined($ctx->{-endtime})) {
+ # initial setup, so initialize time slot tracking
+ $ctx->{-starttime} = int($t / $step) * $step;
+ $ctx->{-endtime} = $ctx->{-starttime} + $step;
+
+ # load data
+ &rrd_load($cfg, $ctx);
+ }
+
+ # at end of time slot, store accumulated data
+ if ($t >= $ctx->{-endtime}) {
+ # store data
+ &rrd_store($cfg, $ctx);
+
+ # step one time slot forward
+ $ctx->{-starttime} = $ctx->{-endtime};
+ $ctx->{-endtime} += $step;
+ }
+
+ # accumulate data
+ &data_accumulate($cfg, $ctx);
+ }
+ &rrd_store($cfg, $ctx);
+
+ # initialize data tracking context
+ sub data_init {
+ my ($cfg) = @_;
+
+ # create tracking context
+ my $ctx = {
+ -starttime => 0,
+ -endtime => undef,
+ -track => {},
+ -network => {},
+ };
+ foreach my $host (@{$cfg->{'Host'}}) {
+ foreach my $target (grep { $_ !~ m/^-/ } keys(%{$host->{-target}})) {
+ my $np = new Net::Patricia;
+ foreach my $network (@{$host->{-target}->{$target}->{-network}}) {
+ $np->add_string($network, 1);
+ }
+ $ctx->{-network}->{$host->{-name}.":".$target} = $np;
+ foreach my $service (@{$host->{-target}->{$target}->{-service}}) {
+ my $ds_name = &make_rrd_ds_name($host->{-name}, $target, $service);
+ $ctx->{-track}->{"${ds_name}_i"} = 0;
+ $ctx->{-track}->{"${ds_name}_o"} = 0;
+ }
+ }
+ }
+ return $ctx;
+ }
+
+ # create RRD file (if still not existing)
+ sub rrd_create {
+ my ($cfg, $time) = @_;
+ return if (-f $cfg->{'Database'});
+
+ # determine RRD data sources (DS)
+ my @ds = ();
+ foreach my $host (@{$cfg->{'Host'}}) {
+ foreach my $target (grep { $_ !~ m/^-/ } keys(%{$host->{-target}})) {
+ foreach my $service (@{$host->{-target}->{$target}->{-service}}) {
+ my $ds_name = &make_rrd_ds_name($host->{-name}, $target, $service);
+ push(@ds, "DS:${ds_name}_i:ABSOLUTE:600:0:U");
+ push(@ds, "DS:${ds_name}_o:ABSOLUTE:600:0:U");
+ }
+ }
+ }
+ push(@ds, "DS:UNKNOWN:ABSOLUTE:600:0:U");
+
+ # determine RRD archive (RRA)
+ my @rra = ();
+ sub mkrra {
+ my ($step, $res, $duration) = @_;
+ my $steps = int($res / $step);
+ my $rows = int($duration / $res);
+ my $rra = sprintf('RRA:LAST:0:%d:%d', $steps, $rows);
+ push(@rra, $rra);
+ }
+ &mkrra($step, 5*60, 7*24*60*60); # 5 min res. for 1 week
+ &mkrra($step, 10*60, 14*24*60*60); # 10 min res. for 2 weeks
+ &mkrra($step, 30*60, 30*24*60*60); # 30 min res. for 1 month
+ &mkrra($step, 60*60, 3*30*24*60*60); # 1 hour res. for 3 months
+ &mkrra($step, 3*60*60, 6*30*24*60*60); # 3 hour res. for 6 months
+ &mkrra($step, 6*60*60, 365*24*60*60); # 6 hour res. for 1 year
+ &mkrra($step, 24*60*60, 4*365*24*60*60); # 1 days res. for 4 year
+
+ # create RRD database
+ RRDs::create($cfg->{'Database'}, '--start', $time, '--step', $step, @ds, @rra);
+ my $err = RRDs::error();
+ die "failed to create RRD file: $err" if (defined($err));
+ }
+
+ # load already stored accumulated data of current time slot back from RRD
+ sub rrd_load {
+ my ($cfg, $ctx) = @_;
+
+ # make sure the RRD is available
+ &rrd_create($cfg, $Cflow::endtime);
+
+ # load data from RRD
+ my ($rrd_start, $rrd_step, $rrd_names, $rrd_data) = RRDs::fetch(
+ $cfg->{'Database'},
+ 'LAST',
+ '--resolution', $step,
+ '--start', $ctx->{-endtime},
+ '--end', $ctx->{-endtime}
+ );
+ my $err = RRDs::error();
+ if (not defined($err) and defined($rrd_names) and defined($rrd_data)) {
+ for (my $i = 0; $i <= $#{$rrd_names}; $i++) {
+ my $ds_name = $rrd_names->[$i];
+ my $ds_value = $rrd_data->[0]->[$i] || 0;
+ $ctx->{-track}->{$ds_name} = $ds_value;
+ }
+ }
+ }
+
+ # accumulate data
+ sub data_accumulate {
+ my ($cfg, $ctx) = @_;
+
+ #my $st = POSIX::ctime($Cflow::startime); $st =~ s/\r?\n$//s;
+ #my $et = POSIX::ctime($Cflow::endtime); $et =~ s/\r?\n$//s;
+ #printf(STDERR "%s %15.15s.%-5hu %15.15s.%-5hu %2hu %3u %u\n",
+ # $et,
+ # $Cflow::srcip, $Cflow::srcport,
+ # $Cflow::dstip, $Cflow::dstport,
+ # $Cflow::protocol, $Cflow::bytes);
+
+ # iterate over all target and services to see whether
+ # the flow matches them...
+ my $matched_total = 0;
+ LOOP: foreach my $host (@{$cfg->{'Host'}}) {
+ foreach my $target (grep { $_ !~ m/^-/ } keys(%{$host->{-target}})) {
+ my $matched = 0;
+ my $inbound; $inbound = undef;
+ my $np = $ctx->{-network}->{$host->{-name}.":".$target};
+ if ($np->match_string($Cflow::srcip)) { $inbound = 0; }
+ if ($np->match_string($Cflow::dstip)) { $inbound = 1; }
+ if (defined($inbound)) {
+ foreach my $service (@{$host->{-target}->{$target}->{-service}}) {
+ my $services = $cfg->{'Service'}->{$service};
+ foreach my $s (@{$services}) {
+ my $proto = $cfg->{'Protocol'}->{$s->{-proto}};
+ my $port = $s->{-port};
+ if ($Cflow::protocol == $proto) {
+ if ( ( $inbound and $Cflow::dstport == $port)
+ or (not $inbound and $Cflow::srcport == $port)) {
+ $matched = 1;
+ }
+ }
+ if ($matched) {
+ # flow matched target/service, so accumulate data
+ my $ds_name = &make_rrd_ds_name($host->{-name}, $target, $service);
+ if ($inbound) { $ctx->{-track}->{"${ds_name}_i"} += $Cflow::bytes; }
+ else { $ctx->{-track}->{"${ds_name}_o"} += $Cflow::bytes; }
+ $matched_total++;
+ last LOOP;
+ }
+ }
+ }
+ }
+ }
+ }
+ if ($matched_total == 0) {
+ $ctx->{-track}->{"UNKNOWN"} += $Cflow::bytes;
+ }
+ }
+
+ # store accumulated data into RRD
+ sub rrd_store {
+ my ($cfg, $ctx) = @_;
+
+ # make sure the RRD is available
+ &rrd_create($cfg, $Cflow::endtime);
+
+ # store data to RRD
+ my $ds_list = '';
+ my $dv_list = '';
+ my $i = 0;
+ foreach my $ds_name (sort(keys(%{$ctx->{-track}}))) {
+ # generate update argument
+ $ds_list .= ($ds_list ne '' ? ":" : "") . $ds_name;
+ $dv_list .= ($dv_list ne '' ? ":" : "") . $ctx->{-track}->{$ds_name};
+ # reset value
+ $ctx->{-track}->{$ds_name} = 0;
+ }
+ RRDs::update(
+ $cfg->{'Database'},
+ '--template', $ds_list,
+ sprintf("%d", $ctx->{-endtime}).":".$dv_list
+ );
+ my $err = RRDs::error();
+ warn "failed to store data to RRD file: $err" if (defined($err));
+ }
+ }
+
+ ##
+ ## ==== OPERATION MODE 2: GENERATE GRAPHS ====
+ ##
+
+ if ($opt->{-graph}) {
+ if (@ARGV == 0) {
+ die "missing graph specifications";
+ }
+ foreach my $spec (@ARGV) {
+ # determine graph parameters
+ $spec =~ m/^(.+)\@(\S+):(\d+):(\d+):([^:]+):([^:]+):([^:]+):([^:]+)$/
+ or die "invalid graph specification \"$spec\" (expect <content>:<file>:<width>:<height>:<start>:<end>:<ulimit>:<llimit>)";
+ my ($content, $img_file, $img_width, $img_height) = ($1, $2, $3, $4);
+ my ($graph_start, $graph_end, $graph_ulimit, $graph_llimit) = ($5, $6, $7, $8);
+
+ # post-process parameters
+ my $img_format = ($img_file =~ m|\.png$| ? "PNG" : "GIF");
+ sub cv_time {
+ my ($t) = @_;
+ if ($t =~ m|^now(.*)$|) {
+ $t = time() + &cv_time($1);
+ }
+ elsif ($t =~ m|^([-+])(.+)$|) {
+ $t = &cv_time($2);
+ eval "\$t = $1 \$t";
+ }
+ elsif ($t =~ m|(\d{2})-([A-Za-z]{3})-(\d{4})|) {
+ $t = str2time($t);
+ }
+ elsif ($t =~ m|^(\d+)([smhdwMY])$|) {
+ $t = $1;
+ if ($2 eq 's') { $t *= 1; }
+ elsif ($2 eq 'm') { $t *= 60; }
+ elsif ($2 eq 'h') { $t *= 60*60; }
+ elsif ($2 eq 'd') { $t *= 24*60*60; }
+ elsif ($2 eq 'w') { $t *= 7*24*60*60; }
+ elsif ($2 eq 'M') { $t *= 30*24*60*60; }
+ elsif ($2 eq 'Y') { $t *= 365*24*60*60; }
+ }
+ else {
+ $t = 0;
+ }
+ return $t;
+ }
+ if ($graph_start =~ m/^\-(.+)/) {
+ $graph_end = &cv_time($graph_end);
+ $graph_start = $graph_end - &cv_time($1);
+ }
+ elsif ($graph_end =~ m/^\+(.+)/) {
+ $graph_start = &cv_time($graph_start);
+ $graph_end = $graph_start + &cv_time($1);
+ }
+ else {
+ $graph_start = &cv_time($graph_start);
+ $graph_end = &cv_time($graph_end);
+ }
+ sub cv_limit {
+ my ($l) = @_;
+ if ($l eq '') {
+ $l = 0;
+ }
+ elsif ($l =~ m|^([-+])(.*)$|) {
+ $l = &cv_limit($2);
+ eval "\$l = $1 \$l";
+ }
+ elsif ($l =~ m|^(\d+)([KMGT])$|) {
+ $l = $1;
+ if ($2 eq 'K') { $l *= 1024; }
+ if ($2 eq 'M') { $l *= 1024*1024; }
+ if ($2 eq 'G') { $l *= 1024*1024*1024; }
+ if ($2 eq 'T') { $l *= 1024*1024*1024*1024; }
+ }
+ return $l;
+ }
+ $graph_ulimit = &cv_limit($graph_ulimit);
+ $graph_llimit = &cv_limit($graph_llimit);
+
+ my $graph = {
+ -img_file => $img_file,
+ -img_format => $img_format,
+ -img_width => $img_width,
+ -img_height => $img_height,
+ -graph_start => $graph_start,
+ -graph_end => $graph_end,
+ -graph_ulimit => $graph_ulimit,
+ -graph_llimit => $graph_llimit,
+ };
+
+ if ($content =~ m|^(\S+):(\S+)$|) {
+ &make_graph_target($graph, $1, $2);
+ }
+ else {
+ &make_graph_host($graph, $content);
+ }
+
+ # generate graph for a host
+ sub make_graph_host {
+ my ($graph, $hostname) = @_;
+
+ # find host configuration record
+ my $host; $host = undef;
+ foreach my $h (@{$cfg->{'Host'}}) {
+ if ($h->{-name} eq $hostname) {
+ $host = $h;
+ last;
+ }
+ }
+ if (not defined($host)) {
+ die "host \"$hostname\" not found";
+ }
+
+ my $colors = $cfg->{'Colors'}->{'colorful'}; # FIXME
+ my @def = ();
+ my @cdef = ();
+ my @draw_o = ();
+ my @draw_i = ();
+ my $i = 0;
+ # FIXME: UNKNOWN data?
+ foreach my $target (@{$host->{-target}->{-order}}) {
+ my $cdef_i = '';
+ my $cdef_o = '';
+ foreach my $service (@{$host->{-target}->{$target}->{-service}}) {
+ my $ds_name = &make_rrd_ds_name($host->{-name}, $target, $service);
+ push(@def, sprintf("DEF:%s_o=%s:%s_o:LAST", $ds_name, $cfg->{'Database'}, $ds_name));
+ push(@def, sprintf("DEF:%s_i=%s:%s_i:LAST", $ds_name, $cfg->{'Database'}, $ds_name));
+ $cdef_o = ($cdef_o eq '' ? "${ds_name}_o" : "${ds_name}_o,$cdef_o,+");
+ $cdef_i = ($cdef_i eq '' ? "${ds_name}_i" : "${ds_name}_i,$cdef_i,+");
+ }
+ $cdef_o .= ",8,*";
+ $cdef_i .= ",8,*";
+ $cdef_i .= ",-1,*";
+ push(@cdef, sprintf("CDEF:data%d_o=%s", $i, $cdef_o));
+ push(@cdef, sprintf("CDEF:data%d_i=%s", $i, $cdef_i));
+ my $color_o; eval "\$color_o = 0x".$colors->[$i];
+ my $color_i; eval "\$color_i = \$color_o - 0x404040";
+ push(@draw_o, sprintf("%s:data%d_o#%06x:%s out", ($i == 0 ? "AREA" : "STACK"), $i, $color_o, $target));
+ push(@draw_i, sprintf("%s:data%d_i#%06x:%s in", ($i == 0 ? "AREA" : "STACK"), $i, $color_i, $target));
+ $i++;
+ }
+ my @draw = (@draw_o, "COMMENT:\n", @draw_i, "HRULE:0#000000");
+ my @args = ();
+ push(@args, $graph->{-img_file});
+ push(@args, '--imgformat', $graph->{-img_format});
+ push(@args, '--width', $graph->{-img_width});
+ push(@args, '--height', $graph->{-img_height});
+ push(@args, '--start', $graph->{-graph_start});
+ push(@args, '--end', $graph->{-graph_end});
+ push(@args, '--upper-limit', $graph->{-graph_ulimit}) if ($graph->{-graph_ulimit} != 0);
+ push(@args, '--lower-limit', $graph->{-graph_llimit}) if ($graph->{-graph_llimit} != 0);
+ push(@args, '--rigid');
+ push(@args, '--alt-autoscale',);
+ push(@args, '--base', 1024);
+ push(@args, '--x-grid', "HOUR:1:DAY:1:DAY:1:0:%d-%b-%Y");
+ push(@args, '--vertical-label', 'Bit/s');
+ push(@args, '--color', 'CANVAS#ffffff');
+ push(@args, '--color', 'BACK#e0e0e0');
+ push(@args, '--color', 'SHADEA#f8f8f8');
+ push(@args, '--color', 'SHADEB#999999');
+ push(@args, '--color', 'GRID#cccccc');
+ push(@args, '--color', 'MGRID#000000');
+ push(@args, '--color', 'FONT#000000');
+ push(@args, '--color', 'FRAME#000000');
+ push(@args, '--color', 'ARROW#000000');
+ push(@args, '--title', sprintf("Host %s (+out/-in)", $host->{-name}));
+ push(@args, @def);
+ push(@args, @cdef);
+ push(@args, @draw);
+ print STDERR join(" ", @args)."\n";
+ my ($rrd_averages, $rrd_xsize, $rrd_ysize) = RRDs::graph(@args);
+ my $err = RRDs::error();
+ die "failed to generate graph from RRD file: $err" if (defined($err));
+ }
+
+ # generate graph for a target
+ sub make_graph_target {
+ my ($graph, $hostname, $targetname) = @_;
+
+ # find host configuration record
+ my $host; $host = undef;
+ foreach my $h (@{$cfg->{'Host'}}) {
+ if ($h->{-name} eq $hostname) {
+ $host = $h;
+ last;
+ }
+ }
+ if (not defined($host)) {
+ die "host \"$hostname\" not found";
+ }
+
+ # find target configuration record
+ my $target; $target = undef;
+ foreach my $t (@{$host->{-target}->{-order}}) {
+ if ($t eq $targetname) {
+ $target = $t;
+ last;
+ }
+ }
+ if (not defined($target)) {
+ die "target \"$targetname\" not found";
+ }
+
+ my $colors = $cfg->{'Colors'}->{'colorful'}; # FIXME
+ my @def = ();
+ my @cdef = ();
+ my @draw_o = ();
+ my @draw_i = ();
+ my $i = 0;
+ foreach my $service (@{$host->{-target}->{$target}->{-service}}) {
+ my $ds_name = &make_rrd_ds_name($host->{-name}, $target, $service);
+ push(@def, sprintf("DEF:%s_o=%s:%s_o:LAST", $ds_name, $cfg->{'Database'}, $ds_name));
+ push(@def, sprintf("DEF:%s_i=%s:%s_i:LAST", $ds_name, $cfg->{'Database'}, $ds_name));
+ push(@cdef, sprintf("CDEF:data%d_o=%s_o,8,*,+1,*", $i, $ds_name));
+ push(@cdef, sprintf("CDEF:data%d_i=%s_i,8,*,-1,*", $i, $ds_name));
+ my $color_o; eval "\$color_o = 0x".$colors->[$i];
+ my $color_i; eval "\$color_i = \$color_o - 0x404040";
+ push(@draw_o, sprintf("%s:data%d_o#%06x:%s out", ($i == 0 ? "AREA" : "STACK"), $i, $color_o, $service));
+ push(@draw_i, sprintf("%s:data%d_i#%06x:%s in", ($i == 0 ? "AREA" : "STACK"), $i, $color_i, $service));
+ $i++;
+ }
+ my @draw = (@draw_o, "COMMENT:\n", @draw_i, "HRULE:0#000000");
+ my @args = ();
+ push(@args, $graph->{-img_file});
+ push(@args, '--imgformat', $graph->{-img_format});
+ push(@args, '--width', $graph->{-img_width});
+ push(@args, '--height', $graph->{-img_height});
+ push(@args, '--start', $graph->{-graph_start});
+ push(@args, '--end', $graph->{-graph_end});
+ push(@args, '--upper-limit', $graph->{-graph_ulimit}) if ($graph->{-graph_ulimit} != 0);
+ push(@args, '--lower-limit', $graph->{-graph_llimit}) if ($graph->{-graph_llimit} != 0);
+ push(@args, '--rigid');
+ push(@args, '--alt-autoscale',);
+ push(@args, '--base', 1024);
+ push(@args, '--x-grid', "HOUR:1:DAY:1:DAY:1:0:%d-%b-%Y");
+ push(@args, '--vertical-label', 'Bit/s');
+ push(@args, '--color', 'CANVAS#ffffff');
+ push(@args, '--color', 'BACK#e0e0e0');
+ push(@args, '--color', 'SHADEA#f8f8f8');
+ push(@args, '--color', 'SHADEB#999999');
+ push(@args, '--color', 'GRID#cccccc');
+ push(@args, '--color', 'MGRID#000000');
+ push(@args, '--color', 'FONT#000000');
+ push(@args, '--color', 'FRAME#000000');
+ push(@args, '--color', 'ARROW#000000');
+ push(@args, '--title', sprintf("Target %s on Host %s (+out/-in)", $target, $host->{-name}));
+ push(@args, @def);
+ push(@args, @cdef);
+ push(@args, @draw);
+ print STDERR join(" ", @args)."\n";
+ my ($rrd_averages, $rrd_xsize, $rrd_ysize) = RRDs::graph(@args);
+ my $err = RRDs::error();
+ die "failed to generate graph from RRD file: $err" if (defined($err));
+ }
+ }
+ }
+
+ ##
+ ## ==== OPERATION MODE 3: GENERATE WEB USER INTERFACE ====
+ ##
+
+ if ($opt->{-cgi}) {
+ my $cgi = new CGI;
+
+ if (defined(my $graph = $cgi->param("graph"))) {
+ #
+ # output graph image
+ #
+
+ # prepare graph generation
+ my (undef, $tmpfile) = mkstemp(($ENV{'TMPDIR'} || '/tmp') . "/flow2rrd.tmp");
+ $graph =~ s|\@|\@$tmpfile|s;
+
+ # generate graph image
+ my $rc = system("$0 --graph $graph");
+ if ($rc != 0 or not -s $tmpfile) {
+ die "failed to generate graph image";
+ }
+
+ # read graph image
+ my $io = new IO::File "<$tmpfile" or die "cannot read graph";
+ my $data; { local $/; $data = <$io>; }
+ $io->close();
+
+ # send out graph image
+ print STDOUT $cgi->header(
+ -type => 'image/png',
+ -content_length => length($data),
+ -expires => '+5m'
+ ) . $data;
+
+ # cleanup
+ unlink($tmpfile)
+ }
+ else {
+ #
+ # output HTML page
+ #
+
+ # generate HTML page
+ my $html = new String::Divert;
+ $html->overload(1);
+ $html .= "<html>\n" .
+ " <head>\n" .
+ " " . $html->folder("head") .
+ " </head>\n" .
+ " <body>\n" .
+ " " . $html->folder("body") .
+ " </body>\n" .
+ "</html>\n";
+ $html >> "body";
+ $html .= "foo\n";
+ $html << 1;
+ $html->undivert(0);
+
+ # FIXME
+
+ # send out page
+ print STDOUT $cgi->header(
+ -type => 'text/html',
+ -content_length => length($html),
+ -expires => '+5m'
+ ) . $html;
+
+ # cleanup
+ undef $html;
+ }
+
+ # width
+ # height
+ # start-time
+ # end-time
+ # upper-limit
+ # lower-limit
+ }
+
+ exit(0);
+
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