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# -*- perl -*-
# Copyright (C) 2011-2012 Niels Thykier <niels@thykier.net>
# - Based on a shell script by Raphael Geissert <atomo64@gmail.com>
# Copyright (C) 2021 Felix Lechner
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <http://www.gnu.org/licenses/>.
package Lintian::Data::Buildflags::Hardening;
use v5.20;
use warnings;
use utf8;
use Const::Fast;
use List::SomeUtils qw(first_value uniq);
use Unicode::UTF8 qw(decode_utf8);
use Lintian::Deb822;
use Lintian::IPC::Run3 qw(safe_qx);
use Moo;
use namespace::clean;
const my $EMPTY => q{};
const my $SLASH => q{/};
const my $RECOMMENDED_FEATURES => q{recommended_features};
with 'Lintian::Data::PreambledJSON';
=encoding utf-8
=head1 NAME
Lintian::Data::Buildflags::Hardening -- Lintian API for hardening build flags
=head1 SYNOPSIS
use Lintian::Data::Buildflags::Hardening;
=head1 DESCRIPTION
Lintian API for hardening build flags.
=head1 INSTANCE METHODS
=over 4
=item title
=item location
=item recommended_features
=cut
has title => (
is => 'rw',
default => 'Hardening Flags from Dpkg'
);
has location => (
is => 'rw',
default => 'buildflags/hardening.json'
);
has recommended_features => (
is => 'rw',
default => sub { {} },
coerce => sub { my ($hashref) = @_; return ($hashref // {}); }
);
=item load
=cut
sub load {
my ($self, $search_space, $our_vendor) = @_;
my @candidates = map { $_ . $SLASH . $self->location } @{$search_space};
my $path = first_value { -e } @candidates;
my $recommended_features;
return 0
unless $self->read_file($path, \$recommended_features);
$self->recommended_features($recommended_features);
return 1;
}
=item refresh
=cut
sub refresh {
my ($self, $archive, $basedir) = @_;
# find all recommended hardening features
local $ENV{LC_ALL} = 'C';
local $ENV{DEB_BUILD_MAINT_OPTIONS} = 'hardening=+all';
my @architectures
= split(/\n/, decode_utf8(safe_qx('dpkg-architecture', '-L')));
chomp for @architectures;
my %recommended_features;
for my $architecture (@architectures) {
local $ENV{DEB_HOST_ARCH} = $architecture;
my @command = qw{dpkg-buildflags --query-features hardening};
my $feature_output = decode_utf8(safe_qx(@command));
my $deb822 = Lintian::Deb822->new;
my @sections = $deb822->parse_string($feature_output);
my @enabled = grep { $_->value('Enabled') eq 'yes' } @sections;
my @features = uniq map { $_->value('Feature') } @enabled;
$recommended_features{$architecture} = [sort @features];
}
my $data_path = "$basedir/" . $self->location;
my $status
= $self->write_file($RECOMMENDED_FEATURES, \%recommended_features,
$data_path);
return $status;
}
=back
=cut
1;
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
|
