drakx-backup-do-not-use - Mageia Installer and base platform for many utilities

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author	Karl Ove Hufthammer <huftis@mandriva.com>	2005-09-25 09:05:31 +0000
committer	Karl Ove Hufthammer <huftis@mandriva.com>	2005-09-25 09:05:31 +0000
commit	fb954c3dc41336a56a3ede45f2a41ed9c807f6b7 (patch)
tree	9bc9c5e5681ee15aa46ee106c7b6a27ad4e0808f /perl-install/install_steps.pm
parent	ceca5bf711b3cd7191ec38cb9232dfe87408fca2 (diff)
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package security::msec; use strict; use vars qw($VERSION); use MDK::Common::File; $VERSION = "0.2"; =head1 NAME msec - Perl functions to handle msec configuration files =head1 SYNOPSYS require security::msec; my $msec = new msec; $secure_level = get_secure_level; @functions = $msec->get_functions; foreach @functions { %options{$_} = $msec->get_function_value($_) } foreach @functions { %defaults{$_} = $msec->get_function_default($_) } foreach @functions { $msec->config_function($_, %options{$_}) } @checks = $msec->get_default_checks; foreach @checks { %options{$_} = $msec->get_check_value($_) } foreach @checks { %defaults{$_} = $msec->get_check_default($_) } foreach @checks { $msec->config_check($_, %options{$_}) } =head1 DESCRIPTION C<msec> is a perl module used by draksec to customize the different options that can be set in msec's configuration files. =head1 COPYRIGHT Copyright (C) 2000,2001,2002 MandrakeSoft <cbelisle@mandrakesoft.com> 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, 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. =cut use MDK::Common; my $check_file = "$::prefix/etc/security/msec/security.conf"; # *********************************************** # PRIVATE FUNCTIONS # *********************************************** sub get_default { my ($option, $category) = @_; my $default_file = ""; my $default_value = ""; my $num_level = 0; if ($category eq "functions") { my $word_level = get_secure_level(); if ($word_level eq "Dangerous") { $num_level = 0 } elsif ($word_level eq "Poor") { $num_level = 1 } elsif ($word_level eq "Standard") { $num_level = 2 } elsif ($word_level eq "High") { $num_level = 3 } elsif ($word_level eq "Higher") { $num_level = 4 } elsif ($word_level eq "Paranoid") { $num_level = 5 } $default_file = "$::prefix/usr/share/msec/level.".$num_level; } elsif ($category eq "checks") { $default_file = "$::prefix/var/lib/msec/security.conf"; } open F, $default_file; while(<F>) { if ($category eq 'functions') { if ($_ =~ /^$option/) { (undef, $default_value) = split(/ /, $_) } } elsif ($category eq 'checks') { if ($_ =~ /^$option/) { (undef, $default_value) = split(/=/, $_) } } } close F; chop $default_value; $default_value; } sub get_value { my ($item, $category) = @_; my $value = ''; my $found = 0; my $item_file; $item_file = "$::prefix/etc/security/msec/level.local" if $category eq 'functions'; $item_file = $check_file if $category eq 'checks'; if (-e $item_file) { open F, $item_file; while(<F>) { if($_ =~ /^$item/) { if ($category eq 'functions') { (undef, $value) = split(/ /, $_); } elsif ($category eq 'checks') { (undef, $value) = split(/=/, $_); } chop $value; $found = 1; close F; } } close F; $value = "default" if $found == 0; } else { $value = "default" } $value; } # *********************************************** # SPECIFIC OPTIONS # *********************************************** # get_secure_level() - Get the secure level # duplicated with some drakx code sub get_secure_level { shift; my $num_level = 2; $num_level = cat_("$::prefix/etc/profile") =~ /export SECURE_LEVEL=(\d+)/ && $1 || cat_("$::prefix/etc/profile.d/msec.sh") =~ /export SECURE_LEVEL=(\d+)/ && $1 || ${{ getVarsFromSh("$::prefix/etc/sysconfig/msec") }}{SECURE_LEVEL}; # || $ENV{SECURE_LEVEL}; my @sec_levels = ("Dangerous", "Poor", "Standard", "High", "Higher", "Paranoid"); return $sec_levels[$num_level];} sub get_seclevel_list { qw(Standard High Higher Paranoid); } sub set_secure_level { my $word_level = $_[1]; my %sec_levels = ("Dangerous" => 0, "Poor" => 1, "Standard" => 2, "High" => 3, "Higher" => 4, "Paranoid" => 5); my $run_level = $sec_levels{$word_level}; system "/usr/sbin/msec", $run_level ? $run_level : 3; } # *********************************************** # FUNCTIONS (level.local) RELATED # *********************************************** # get_functions() - # return a list of functions handled by level.local (see # man mseclib for more info). sub get_functions { shift; my ($category) = @_; my @functions = (); my (@tmp_network_list, @tmp_system_list); ## TODO handle 3 last functions here so they can be removed from this list my @ignore_list = qw(indirect commit_changes closelog error initlog log set_secure_level set_security_conf set_server_level print_changes get_translation create_server_link); my %options = ( 'network' => [qw(accept_bogus_error_responses accept_broadcasted_icmp_echo accept_icmp_echo enable_dns_spoofing_protection enable_ip_spoofing_protection enable_log_strange_packets enable_promisc_check no_password_aging_for)], 'system' => [qw(allow_autologin allow_issues allow_reboot allow_remote_root_login allow_root_login allow_user_list allow_x_connections allow_xserver_to_listen authorize_services enable_at_crontab enable_console_log enable_msec_cron enable_pam_wheel_for_su enable_password enable_security_check enable_sulogin password_aging password_history password_length set_root_umask set_shell_history_size set_shell_timeout set_user_umask)]); my $file = "$::prefix/usr/share/msec/mseclib.py"; my $function = ''; # read mseclib.py to get each function's name and if it's # not in the ignore list, add it to the returned list. open F, $file; while (<F>) { if ($_ =~ /^def/) { (undef, $function) = split(/ /, $_); ($function, undef) = split(/\(/, $function); if (!(member($function, @ignore_list))) { push(@functions, $function) if (member($function, @{$options{$category}})); } } } close F; @functions; } # get_function_value(function) - # return the value of the function passed in argument. If no value is set, # return "default". sub get_function_value { shift; get_value(@_, 'functions'); } # get_function_default(function) - # return the default value of the function according to the security level sub get_function_default { shift; return get_default(@_, "functions"); } # config_function(function, value) - # Apply the configuration to 'prefix'/etc/security/msec/level.local


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