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#!/usr/bin/env perl
#
# Copyright (c) 2018-2021, OARC, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
use strict;
use warnings;
use YAML;
unless (scalar @ARGV > 1) {
print "usage: dnscap-rssm-rssac002 [--no-recompile|--keep-dnscap-rssm|--sort] <YAML files to merge...>\n";
exit(1);
}
my %service = ();
my $earliest_start_period;
my $recompile = 1;
my $keep_dnscap_rssm = 0;
my $sort = 0;
foreach my $file (@ARGV) {
if ($file eq '--no-recompile') {
$recompile = 0;
next;
} elsif ($file eq '--keep-dnscap-rssm') {
$keep_dnscap_rssm = 1;
next;
} elsif ($file eq '--sort') {
$sort = 1;
next;
}
foreach my $doc (YAML::LoadFile($file)) {
my $version = delete $doc->{version};
my $service = delete $doc->{service};
my $start_period = delete $doc->{'start-period'};
my $metric = delete $doc->{metric};
unless ($version) {
die "$file: not valid RSSAC002 YAML, missing version";
}
unless ($service) {
die "$file: not valid RSSAC002 YAML, missing service";
}
unless ($start_period) {
die "$file: not valid RSSAC002 YAML, missing start-period";
}
unless ($metric) {
die "$file: not valid RSSAC002 YAML, missing metric";
}
unless ($version eq 'rssac002v3') {
die "$file: unsupported RSSAC002 version $version";
}
push(@{$service{$service}->{$metric}}, $doc);
if (!$earliest_start_period or $start_period lt $earliest_start_period) {
$earliest_start_period = $start_period;
}
}
}
foreach my $service (keys %service) {
foreach my $metric (keys %{$service{$service}}) {
my %doc = ();
foreach (@{$service{$service}->{$metric}}) {
eval {
merge(\%doc, $_);
};
if ($@) {
die "service $service metric $metric: $@";
}
}
$service{$service}->{$metric} = \%doc;
}
}
if ($recompile) {
foreach my $service (keys %service) {
my ($ipv4, $ipv6, $aggregated) = (0, 0, 0);
my $metric;
if ($keep_dnscap_rssm) {
$metric = $service{$service}->{'dnscap-rssm-sources'};
} else {
$metric = delete $service{$service}->{'dnscap-rssm-sources'};
}
if ($metric) {
if (ref($metric->{sources}) eq 'HASH') {
foreach my $ip (keys %{$metric->{sources}}) {
if ($ip =~ /:/o) {
$ipv6++;
} else {
$ipv4++;
}
}
}
}
if ($keep_dnscap_rssm) {
$metric = $service{$service}->{'dnscap-rssm-aggregated-sources'};
} else {
$metric = delete $service{$service}->{'dnscap-rssm-aggregated-sources'};
}
if ($metric) {
if (ref($metric->{'aggregated-sources'}) eq 'HASH') {
my @keys = keys %{$metric->{'aggregated-sources'}};
$aggregated += scalar @keys;
}
}
$service{$service}->{'unique-sources'} = {
'num-sources-ipv4' => $ipv4,
'num-sources-ipv6' => $ipv6,
'num-sources-ipv6-aggregate' => $aggregated,
};
}
}
if ($sort) {
my $first = 1;
$YAML::SortKeys = 1;
foreach my $service (sort keys %service) {
foreach my $metric (sort keys %{$service{$service}}) {
if ($first) {
$first = 0;
} else {
print "\n";
}
print YAML::Dump({
version => "rssac002v3",
service => $service,
'start-period' => $earliest_start_period,
metric => $metric,
%{ $service{$service}->{$metric} },
});
}
}
} else {
my $first = 1;
$YAML::SortKeys = 0;
foreach my $service (keys %service) {
foreach my $metric (keys %{$service{$service}}) {
if ($first) {
$first = 0;
} else {
print "\n";
}
print YAML::Dump({
version => "rssac002v3",
service => $service,
'start-period' => $earliest_start_period,
metric => $metric,
%{ $service{$service}->{$metric} },
});
}
}
}
sub merge {
my ( $doc, $measurements ) = @_;
foreach my $key (keys %$measurements) {
if (ref($doc->{$key}) eq 'HASH') {
unless (ref($measurements->{$key}) eq 'HASH') {
die "invalid measurement types for key $key: not a hash";
}
eval {
merge($doc->{$key}, $measurements->{$key});
};
die $@ if ($@);
next;
}
if (defined($doc->{$key})) {
if (defined($measurements->{$key}) and $measurements->{$key} ne '') {
$doc->{$key} += $measurements->{$key};
}
} else {
$doc->{$key} = $measurements->{$key};
}
}
}
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