mirror of
https://github.com/vincentmli/bpfire.git
synced 2026-04-09 18:45:54 +02:00
ba4f53c565
Fixes: #12925 - JVN#15411362 Inquiry on vulnerability found in IPFire Reported-by: Noriko Totsuka <vuls@jpcert.or.jp> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
1443 lines
36 KiB
Perl
1443 lines
36 KiB
Perl
# SmoothWall CGIs
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#
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# This code is distributed under the terms of the GPL
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#
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# (c) The SmoothWall Team
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# Copyright (C) 2002 Alex Hudson - getcgihash() rewrite
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# Copyright (C) 2002 Bob Grant <bob@cache.ucr.edu> - validmac()
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# Copyright (c) 2002/04/13 Steve Bootes - add alias section, helper functions
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# Copyright (c) 2002/08/23 Mark Wormgoor <mark@wormgoor.com> validfqdn()
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# Copyright (c) 2003/09/11 Darren Critchley <darrenc@telus.net> srtarray()
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#
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# $Id: general-functions.pl,v 1.1.2.26 2006/01/04 16:33:55 franck78 Exp $
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#
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package General;
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use strict;
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use Socket;
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use IO::Socket;
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use Net::SSLeay;
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use Net::IPv4Addr qw(:all);
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$|=1; # line buffering
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$General::version = 'VERSION';
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$General::swroot = 'CONFIG_ROOT';
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$General::noipprefix = 'noipg-';
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require "${General::swroot}/network-functions.pl";
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# This function executes a shell command without forking a shell or do any other
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# Perl-voodoo before it. It deprecates the "system" command and is the only way
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# to call shell commands.
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sub safe_system($) {
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my @command = @_;
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system { ${command[0]} } @command;
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# Return exit code
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return $? >> 8;
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}
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# Calls a process in the background and returns nothing
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sub system_background($) {
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my $pid = fork();
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unless ($pid) {
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my $rc = &system(@_);
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exit($rc);
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}
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return 0;
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}
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# Returns the output of a shell command
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sub system_output($) {
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my @command = @_;
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my $pid;
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my @output = ();
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unless ($pid = open(OUTPUT, "-|")) {
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open(STDERR, ">&STDOUT");
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exec { ${command[0]} } @command;
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die "Could not execute @command: $!";
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}
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waitpid($pid, 0);
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while (<OUTPUT>) {
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push(@output, $_);
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}
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close(OUTPUT);
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return @output;
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}
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# Calls a shell command and throws away the output
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sub system($) {
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my @command = @_;
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open(SAVEOUT, ">&STDOUT");
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open(SAVEERR, ">&STDERR");
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open(STDOUT, ">/dev/null");
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open(STDERR, ">&STDOUT");
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select(STDERR); $|=1;
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select(STDOUT); $|=1;
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my $rc = &safe_system(@command);
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close(STDOUT);
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close(STDERR);
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# Restore
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open(STDOUT, ">&SAVEOUT");
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open(STDERR, ">&SAVEERR");
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return $rc;
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}
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# Function to remove duplicates from an array
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sub uniq { my %seen; grep !$seen{$_}++, @_ }
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#
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# log ("message") use default 'ipcop' tag
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# log ("tag","message") use your tag
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#
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sub log
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{
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my $tag='ipfire';
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$tag = shift if (@_>1);
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my $logmessage = $_[0];
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$logmessage =~ /([\w\W]*)/;
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$logmessage = $1;
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&system('logger', '-t', $tag, $logmessage);
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}
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sub setup_default_networks
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{
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my %netsettings=();
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my $defaultNetworks = shift;
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&readhash("/var/ipfire/ethernet/settings", \%netsettings);
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# Get current defined networks (Red, Green, Blue, Orange)
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$defaultNetworks->{$Lang::tr{'fwhost any'}}{'IPT'} = "0.0.0.0/0.0.0.0";
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$defaultNetworks->{$Lang::tr{'fwhost any'}}{'NAME'} = "ALL";
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$defaultNetworks->{$Lang::tr{'green'}}{'IPT'} = "$netsettings{'GREEN_NETADDRESS'}/$netsettings{'GREEN_NETMASK'}";
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$defaultNetworks->{$Lang::tr{'green'}}{'NET'} = "$netsettings{'GREEN_ADDRESS'}";
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$defaultNetworks->{$Lang::tr{'green'}}{'NAME'} = "GREEN";
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if ($netsettings{'RED_DEV'} ne ''){
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$defaultNetworks->{$Lang::tr{'fwdfw red'}}{'IPT'} = "$netsettings{'RED_NETADDRESS'}/$netsettings{'RED_NETMASK'}";
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$defaultNetworks->{$Lang::tr{'fwdfw red'}}{'NET'} = "$netsettings{'RED_ADDRESS'}";
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$defaultNetworks->{$Lang::tr{'fwdfw red'}}{'NAME'} = "RED";
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}
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if ($netsettings{'ORANGE_DEV'} ne ''){
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$defaultNetworks->{$Lang::tr{'orange'}}{'IPT'} = "$netsettings{'ORANGE_NETADDRESS'}/$netsettings{'ORANGE_NETMASK'}";
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$defaultNetworks->{$Lang::tr{'orange'}}{'NET'} = "$netsettings{'ORANGE_ADDRESS'}";
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$defaultNetworks->{$Lang::tr{'orange'}}{'NAME'} = "ORANGE";
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}
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if ($netsettings{'BLUE_DEV'} ne ''){
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$defaultNetworks->{$Lang::tr{'blue'}}{'IPT'} = "$netsettings{'BLUE_NETADDRESS'}/$netsettings{'BLUE_NETMASK'}";
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$defaultNetworks->{$Lang::tr{'blue'}}{'NET'} = "$netsettings{'BLUE_ADDRESS'}";
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$defaultNetworks->{$Lang::tr{'blue'}}{'NAME'} = "BLUE";
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}
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#IPFire himself
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$defaultNetworks->{'IPFire'}{'NAME'} = "IPFire";
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# OpenVPN
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if(-e "${General::swroot}/ovpn/settings")
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{
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my %ovpnSettings = ();
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&readhash("${General::swroot}/ovpn/settings", \%ovpnSettings);
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# OpenVPN on Red?
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if(defined($ovpnSettings{'DOVPN_SUBNET'}))
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{
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my ($ip,$sub) = split(/\//,$ovpnSettings{'DOVPN_SUBNET'});
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$sub=&General::iporsubtocidr($sub);
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my @tempovpnsubnet = split("\/", $ovpnSettings{'DOVPN_SUBNET'});
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$defaultNetworks->{'OpenVPN ' ."($ip/$sub)"}{'ADR'} = $tempovpnsubnet[0];
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$defaultNetworks->{'OpenVPN ' ."($ip/$sub)"}{'NAME'} = "OpenVPN-Dyn";
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}
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} # end OpenVPN
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# IPsec RW NET
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if(-e "${General::swroot}/vpn/settings")
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{
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my %ipsecsettings = ();
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&readhash("${General::swroot}/vpn/settings", \%ipsecsettings);
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if($ipsecsettings{'RW_NET'} ne '')
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{
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my ($ip,$sub) = split(/\//,$ipsecsettings{'RW_NET'});
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$sub=&General::iporsubtocidr($sub);
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my @tempipsecsubnet = split("\/", $ipsecsettings{'RW_NET'});
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$defaultNetworks->{'IPsec RW (' .$ip."/".$sub.")"}{'ADR'} = $tempipsecsubnet[0];
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$defaultNetworks->{'IPsec RW (' .$ip."/".$sub.")"}{'NAME'} = "IPsec RW";
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$defaultNetworks->{'IPsec RW (' .$ip."/".$sub.")"}{'NET'} = &getnextip($ip);
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}
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}
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}
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sub get_aliases
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{
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my $defaultNetworks = shift;
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open(FILE, "${General::swroot}/ethernet/aliases") or die 'Unable to open aliases file.';
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my @current = <FILE>;
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close(FILE);
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my $ctr = 0;
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foreach my $line (@current)
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{
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if ($line ne ''){
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chomp($line);
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my @temp = split(/\,/,$line);
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if ($temp[2] eq '') {
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$temp[2] = "Alias $ctr : $temp[0]";
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}
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$defaultNetworks->{$temp[2]}{'IPT'} = "$temp[0]";
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$defaultNetworks->{$temp[2]}{'NET'} = "$temp[0]";
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$ctr++;
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}
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}
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}
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sub readhash
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{
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my $filename = $_[0];
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my $hash = $_[1];
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my ($var, $val);
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# Some ipcop code expects that readhash 'complete' the hash if new entries
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# are presents. Not clear it !!!
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#%$hash = ();
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open(FILE, $filename) or die "Unable to read file $filename";
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while (<FILE>)
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{
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chop;
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# Skip comments.
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next if ($_ =~ /^#/);
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($var, $val) = split /=/, $_, 2;
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if ($var)
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{
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$val =~ s/^\'//g;
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$val =~ s/\'$//g;
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# Untaint variables read from hash
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# trim space from begin and end
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$var =~ s/^\s+//;
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$var =~ s/\s+$//;
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$var =~ /([A-Za-z0-9_-]*)/;
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$var = $1;
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$val =~ /([\w\W]*)/;
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$val = $1;
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$hash->{$var} = $val;
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}
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}
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close FILE;
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}
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sub writehash
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{
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my $filename = $_[0];
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my $hash = $_[1];
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my ($var, $val);
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# write cgi vars to the file.
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open(FILE, ">${filename}") or die "Unable to write file $filename";
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flock FILE, 2;
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foreach $var (keys %$hash)
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{
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if ( $var eq "__CGI__"){next;}
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$val = $hash->{$var};
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# Darren Critchley Jan 17, 2003 added the following because when submitting with a graphic, the x and y
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# location of the mouse are submitted as well, this was being written to the settings file causing
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# some serious grief! This skips the variable.x and variable.y
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if (!($var =~ /(.x|.y)$/)) {
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if ($val =~ / /) {
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$val = "\'$val\'"; }
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if (!($var =~ /^ACTION/)) {
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print FILE "${var}=${val}\n"; }
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}
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}
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close FILE;
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}
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sub writehashpart
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{
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# This function replaces the given hash in the original hash by keeping the old
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# content and just replacing the new content
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my $filename = $_[0];
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my $newhash = $_[1];
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my %oldhash;
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my ($var, $val);
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readhash("${filename}", \%oldhash);
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foreach $var (keys %$newhash){
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$oldhash{$var}=$newhash->{$var};
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}
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# write cgi vars to the file.
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open(FILE, ">${filename}") or die "Unable to write file $filename";
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flock FILE, 2;
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foreach $var (keys %oldhash)
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{
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if ( $var eq "__CGI__"){next;}
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$val = $oldhash{$var};
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# Darren Critchley Jan 17, 2003 added the following because when submitting with a graphic, the x and y
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# location of the mouse are submitted as well, this was being written to the settings file causing
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# some serious grief! This skips the variable.x and variable.y
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if (!($var =~ /(.x|.y)$/)) {
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if ($val =~ / /) {
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$val = "\'$val\'"; }
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if (!($var =~ /^ACTION/)) {
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print FILE "${var}=${val}\n"; }
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}
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}
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close FILE;
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}
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sub age {
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my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size,
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$atime, $mtime, $ctime, $blksize, $blocks) = stat $_[0];
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my $t = time() - $mtime;
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return &format_time($t);
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}
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sub format_time($) {
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my $totalsecs = shift;
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my @s = ();
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my $secs = $totalsecs % 60;
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$totalsecs /= 60;
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if ($secs > 0) {
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push(@s, "${secs}s");
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}
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my $min = $totalsecs % 60;
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$totalsecs /= 60;
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if ($min > 0) {
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push(@s, "${min}m");
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}
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my $hrs = $totalsecs % 24;
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$totalsecs /= 24;
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if ($hrs > 0) {
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push(@s, "${hrs}h");
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}
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my $days = int($totalsecs);
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if ($days > 0) {
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push(@s, "${days}d");
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}
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return join(" ", reverse(@s));
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}
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sub validip
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{
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my $ip = $_[0];
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if (!($ip =~ /^(\d+)\.(\d+)\.(\d+)\.(\d+)$/)) {
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return 0; }
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else
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{
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my @octets = ($1, $2, $3, $4);
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foreach $_ (@octets)
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{
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if (/^0./) {
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return 0; }
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if ($_ < 0 || $_ > 255) {
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return 0; }
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}
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return 1;
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}
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}
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sub validmask {
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my $mask = shift;
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return &Network::check_netmask($mask) || &Network::check_prefix($mask);
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}
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sub validipormask
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{
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my $ipormask = $_[0];
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# see if it is a IP only.
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if (&validip($ipormask)) {
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return 1; }
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# split it into number and mask.
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if (!($ipormask =~ /^(.*?)\/(.*?)$/)) {
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return 0; }
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my $ip = $1;
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my $mask = $2;
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# first part not a ip?
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if (!(&validip($ip))) {
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return 0; }
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return &validmask($mask);
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}
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sub subtocidr {
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return &Network::convert_netmask2prefix(shift);
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}
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sub cidrtosub {
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return &Network::convert_prefix2netmask(shift);
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}
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sub iporsubtodec
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{
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#Gets: Ip address or subnetmask in decimal oder CIDR
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#Gives: What it gets only in CIDR format
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my $subnet=$_[0];
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my $net;
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my $mask;
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my $full=0;
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if ($subnet =~ /^(.*?)\/(.*?)$/) {
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($net,$mask) = split (/\//,$subnet);
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$full=1;
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return "$subnet";
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}else{
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$mask=$subnet;
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}
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#Subnet already in decimal and valid?
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if ($mask=~/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ &&(($1<=255 && $2<=$1 && $3<=$2 && $4<=$3 ))) {
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for (my $i=0;$i<=32;$i++){
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if (&General::cidrtosub($i) eq $mask){
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if ($full == 0){return $mask;}else{
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return $net."/".$mask;
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}
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}
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}
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}
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#Subnet in binary format?
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if ($mask=~/^(\d{1,2})$/ && (($1<=32 && $1>=0))){
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if($full == 0){ return &General::cidrtosub($mask);}else{
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return $net."/".&General::cidrtosub($mask);
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}
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}else{
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return 3;
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}
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return 3;
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}
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sub iporsubtocidr
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{
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#gets: Ip Address or subnetmask in decimal oder CIDR
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#Gives: What it gets only in CIDR format
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my $subnet=$_[0];
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my $net;
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my $mask;
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my $full=0;
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if ($subnet =~ /^(.*?)\/(.*?)$/) {
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($net,$mask) = split (/\//,$subnet);
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$full=1;
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}else{
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$mask=$subnet;
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}
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#Subnet in decimal and valid?
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if ($mask=~/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ &&(($1<=255 && $2<=$1 && $3<=$2 && $4<=$3 ))) {
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for (my $i=0;$i<=32;$i++){
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if (&General::cidrtosub($i) eq $mask){
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if ($full == 0){return &General::subtocidr($mask);}else{
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return $net."/".&General::subtocidr($mask);
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}
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}
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}
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}
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#Subnet already in binary format?
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if ($mask=~/^(\d{1,2})$/ && (($1<=32 && $1>=0))){
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if($full == 0){ return $mask;}else{
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return $net."/".$mask;
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}
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}else{
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return 3;
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}
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return 3;
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}
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sub getnetworkip {
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my $arg = join("/", @_);
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return &Network::get_netaddress($arg);
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}
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sub getccdbc
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{
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#Gets: IP in Form ("192.168.0.0/24")
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#Gives: Broadcastaddress of network
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my $ccdnet=$_;
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my ($ccdip,$ccdsubnet) = split "/",$ccdnet;
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my $ip_address_binary = inet_aton( $ccdip );
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my $netmask_binary = ~pack("N", (2**(32-$ccdsubnet))-1);
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my $broadcast_address = inet_ntoa( $ip_address_binary | ~$netmask_binary );
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return $broadcast_address;
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}
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sub ip2dec {
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return &Network::ip2bin(shift);
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}
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sub dec2ip {
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return &Network::bin2ip(shift);
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}
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sub getnextip {
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return &Network::find_next_ip_address(shift, 4);
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}
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sub getlastip {
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return &Network::find_next_ip_address(shift, -1);
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}
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sub validipandmask
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{
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#Gets: Ip address in 192.168.0.0/24 or 192.168.0.0/255.255.255.0 and checks if subnet valid
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#Gives: True bzw 0 if success or false
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my $ccdnet=$_[0];
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my $subcidr;
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|
|
if (!($ccdnet =~ /^(.*?)\/(.*?)$/)) {
|
|
return 0;
|
|
}
|
|
my ($ccdip,$ccdsubnet)=split (/\//, $ccdnet);
|
|
#IP valid?
|
|
if ($ccdip=~/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ &&(($1>0 && $1<=255 && $2>=0 && $2<=255 && $3>=0 && $3<=255 && $4<=255 ))) {
|
|
#Subnet in decimal and valid?
|
|
if ($ccdsubnet=~/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ &&(($1<=255 && $2<=$1 && $3<=$2 && $4<=$3 ))) {
|
|
for (my $i=0;$i<=32;$i++){
|
|
if (&General::cidrtosub($i) eq $ccdsubnet){
|
|
return 1;
|
|
}
|
|
}
|
|
#Subnet already in binary format?
|
|
}elsif ($ccdsubnet=~/^(\d{1,2})$/ && (($1<=32 && $1>=0))){
|
|
return 1;
|
|
}else{
|
|
return 0;
|
|
}
|
|
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
sub checksubnets
|
|
{
|
|
my %ccdconfhash=();
|
|
my %ovpnconfhash=();
|
|
my %vpnconf=();
|
|
my %ipsecconf=();
|
|
my %ownnet=();
|
|
my %ovpnconf=();
|
|
my @ccdconf=();
|
|
my $ccdname=$_[0];
|
|
my $ccdnet=$_[1];
|
|
my $ownnet=$_[2];
|
|
my $checktype=$_[3];
|
|
my $errormessage;
|
|
my ($ip,$cidr)=split(/\//,$ccdnet);
|
|
$cidr=&iporsubtocidr($cidr);
|
|
|
|
#get OVPN-Subnet (dynamic range)
|
|
&readhash("${General::swroot}/ovpn/settings", \%ovpnconf);
|
|
my ($ovpnip,$ovpncidr)= split (/\//,$ovpnconf{'DOVPN_SUBNET'});
|
|
$ovpncidr=&iporsubtocidr($ovpncidr);
|
|
|
|
#check if we try to use same network as ovpn server
|
|
if ("$ip/$cidr" eq "$ovpnip/$ovpncidr") {
|
|
$errormessage=$errormessage.$Lang::tr{'ccd err isovpnnet'}."<br>";
|
|
return $errormessage;
|
|
}
|
|
|
|
#check if we try to use same network as another ovpn N2N
|
|
if($ownnet ne 'ovpn'){
|
|
&readhasharray("${General::swroot}/ovpn/ovpnconfig", \%ovpnconfhash);
|
|
foreach my $key (keys %ovpnconfhash) {
|
|
if ($ovpnconfhash{$key}[3] eq 'net'){
|
|
my @ovpnnet=split (/\//,$ovpnconfhash{$key}[11]);
|
|
if (&IpInSubnet($ip,$ovpnnet[0],&iporsubtodec($ovpnnet[1]))){
|
|
$errormessage=$errormessage.$Lang::tr{'ccd err isovpnn2n'}." $ovpnconfhash{$key}[1] <br>";
|
|
return $errormessage;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#check if we use a network-name/subnet (static-ovpn) that already exists
|
|
&readhasharray("${General::swroot}/ovpn/ccd.conf", \%ccdconfhash);
|
|
foreach my $key (keys %ccdconfhash) {
|
|
@ccdconf=split(/\//,$ccdconfhash{$key}[1]);
|
|
if ($ccdname eq $ccdconfhash{$key}[0])
|
|
{
|
|
$errormessage=$errormessage.$Lang::tr{'ccd err nameexist'}."<br>";
|
|
return $errormessage;
|
|
}
|
|
my ($newip,$newsub) = split(/\//,$ccdnet);
|
|
if (&IpInSubnet($newip,$ccdconf[0],&iporsubtodec($ccdconf[1])))
|
|
{
|
|
$errormessage=$errormessage.$Lang::tr{'ccd err issubnet'}." $ccdconfhash{$key}[0]<br>";
|
|
return $errormessage;
|
|
}
|
|
}
|
|
|
|
#check if we use a ipsec right network which is already defined
|
|
if($ownnet ne 'ipsec'){
|
|
&General::readhasharray("${General::swroot}/vpn/config", \%ipsecconf);
|
|
foreach my $key (keys %ipsecconf){
|
|
if ($ipsecconf{$key}[11] ne '' && $ipsecconf{$key}[36] eq ""){
|
|
foreach my $ipsecsubitem (split(/\|/, $ipsecconf{$key}[11])) {
|
|
my ($ipsecip,$ipsecsub) = split (/\//, $ipsecsubitem);
|
|
$ipsecsub=&iporsubtodec($ipsecsub);
|
|
if($ipsecconf{$key}[1] ne $ccdname){
|
|
if ( &IpInSubnet ($ip,$ipsecip,$ipsecsub) ){
|
|
$errormessage=$Lang::tr{'ccd err isipsecnet'}." Name: $ipsecconf{$key}[1]";
|
|
return $errormessage;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#check if we use the ipsec RW Network (if defined)
|
|
&readhash("${General::swroot}/vpn/settings", \%vpnconf);
|
|
if ($vpnconf{'RW_NET'} ne ''){
|
|
my ($ipsecrwnet,$ipsecrwsub)=split (/\//, $vpnconf{'RW_NET'});
|
|
if (&IpInSubnet($ip,$ipsecrwnet,&iporsubtodec($ipsecrwsub)))
|
|
{
|
|
$errormessage=$errormessage.$Lang::tr{'ccd err isipsecrw'}."<br>";
|
|
return $errormessage;
|
|
}
|
|
}
|
|
|
|
#call check_net_internal
|
|
if ($checktype eq "exact")
|
|
{
|
|
&General::check_net_internal_exact($ccdnet);
|
|
}else{
|
|
&General::check_net_internal_range($ccdnet);
|
|
}
|
|
}
|
|
|
|
sub check_net_internal_range{
|
|
my $network=shift;
|
|
my ($ip,$cidr)=split(/\//,$network);
|
|
my %ownnet=();
|
|
my $errormessage;
|
|
$cidr=&iporsubtocidr($cidr);
|
|
#check if we use one of ipfire's networks (green,orange,blue)
|
|
&readhash("${General::swroot}/ethernet/settings", \%ownnet);
|
|
if (($ownnet{'GREEN_NETADDRESS'} ne '' && $ownnet{'GREEN_NETADDRESS'} ne '0.0.0.0') && &IpInSubnet($ip,$ownnet{'GREEN_NETADDRESS'},&iporsubtodec($ownnet{'GREEN_NETMASK'}))){ $errormessage=$Lang::tr{'ccd err green'};return $errormessage;}
|
|
if (($ownnet{'ORANGE_NETADDRESS'} ne '' && $ownnet{'ORANGE_NETADDRESS'} ne '0.0.0.0') && &IpInSubnet($ip,$ownnet{'ORANGE_NETADDRESS'},&iporsubtodec($ownnet{'ORANGE_NETMASK'}))){ $errormessage=$Lang::tr{'ccd err orange'};return $errormessage;}
|
|
if (($ownnet{'BLUE_NETADDRESS'} ne '' && $ownnet{'BLUE_NETADDRESS'} ne '0.0.0.0') && &IpInSubnet($ip,$ownnet{'BLUE_NETADDRESS'},&iporsubtodec($ownnet{'BLUE_NETMASK'}))){ $errormessage=$Lang::tr{'ccd err blue'};return $errormessage;}
|
|
if (($ownnet{'RED_NETADDRESS'} ne '' && $ownnet{'RED_NETADDRESS'} ne '0.0.0.0') && &IpInSubnet($ip,$ownnet{'RED_NETADDRESS'},&iporsubtodec($ownnet{'RED_NETMASK'}))){ $errormessage=$Lang::tr{'ccd err red'};return $errormessage;}
|
|
}
|
|
|
|
sub check_net_internal_exact{
|
|
my $network=shift;
|
|
my ($ip,$cidr)=split(/\//,$network);
|
|
my %ownnet=();
|
|
my $errormessage;
|
|
$cidr=&iporsubtocidr($cidr);
|
|
#check if we use one of ipfire's networks (green,orange,blue)
|
|
&readhash("${General::swroot}/ethernet/settings", \%ownnet);
|
|
if (($ownnet{'GREEN_NETADDRESS'} ne '' && $ownnet{'GREEN_NETADDRESS'} ne '0.0.0.0') && &Network::network_equal("$ownnet{'GREEN_NETADDRESS'}/$ownnet{'GREEN_NETMASK'}", $network)){ $errormessage=$Lang::tr{'ccd err green'};return $errormessage;}
|
|
if (($ownnet{'ORANGE_NETADDRESS'} ne '' && $ownnet{'ORANGE_NETADDRESS'} ne '0.0.0.0') && &Network::network_equal("$ownnet{'ORANGE_NETADDRESS'}/$ownnet{'ORANGE_NETMASK'}", $network)){ $errormessage=$Lang::tr{'ccd err orange'};return $errormessage;}
|
|
if (($ownnet{'BLUE_NETADDRESS'} ne '' && $ownnet{'BLUE_NETADDRESS'} ne '0.0.0.0') && &Network::network_equal("$ownnet{'BLUE_NETADDRESS'}/$ownnet{'BLUE_NETMASK'}", $network)){ $errormessage=$Lang::tr{'ccd err blue'};return $errormessage;}
|
|
if (($ownnet{'RED_NETADDRESS'} ne '' && $ownnet{'RED_NETADDRESS'} ne '0.0.0.0') && &Network::network_equal("$ownnet{'RED_NETADDRESS'}/$ownnet{'RED_NETMASK'}", $network)){ $errormessage=$Lang::tr{'ccd err red'};return $errormessage;}
|
|
}
|
|
|
|
sub validport
|
|
{
|
|
$_ = $_[0];
|
|
|
|
if (!/^\d+$/) {
|
|
return 0; }
|
|
if (/^0./) {
|
|
return 0; }
|
|
if ($_ >= 1 && $_ <= 65535) {
|
|
return 1; }
|
|
return 0;
|
|
}
|
|
|
|
sub validproxyport
|
|
{
|
|
$_ = $_[0];
|
|
|
|
if (!/^\d+$/) {
|
|
return 0; }
|
|
if (/^0./) {
|
|
return 0; }
|
|
if ($_ == 53 || $_ == 222 || $_ == 444 || $_ == 81 ) {
|
|
return 0; }
|
|
elsif ($_ >= 1 && $_ <= 65535) {
|
|
return 1; }
|
|
return 0;
|
|
}
|
|
|
|
sub validmac
|
|
{
|
|
my $checkmac = $_[0];
|
|
my $ot = '[0-9a-f]{2}'; # 2 Hex digits (one octet)
|
|
if ($checkmac !~ /^$ot:$ot:$ot:$ot:$ot:$ot$/i)
|
|
{
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
sub validhostname
|
|
{
|
|
# Checks a hostname against RFC1035
|
|
my $hostname = $_[0];
|
|
|
|
# Hostname should be at least one character in length
|
|
# but no more than 63 characters
|
|
if (length ($hostname) < 1 || length ($hostname) > 63) {
|
|
return 0;}
|
|
# Only valid characters are a-z, A-Z, 0-9 and -
|
|
if ($hostname !~ /^[a-zA-Z0-9-]*$/) {
|
|
return 0;}
|
|
# First character can only be a letter or a digit
|
|
if (substr ($hostname, 0, 1) !~ /^[a-zA-Z0-9]*$/) {
|
|
return 0;}
|
|
# Last character can only be a letter or a digit
|
|
if (substr ($hostname, -1, 1) !~ /^[a-zA-Z0-9]*$/) {
|
|
return 0;}
|
|
return 1;
|
|
}
|
|
|
|
sub validccdname
|
|
{
|
|
# Checks a ccdname for letters, numbers and spaces
|
|
my $ccdname = $_[0];
|
|
|
|
# ccdname should be at least one character in length
|
|
# but no more than 63 characters
|
|
if (length ($ccdname) < 1 || length ($ccdname) > 63) {
|
|
return 0;}
|
|
# Only valid characters are a-z, A-Z, 0-9, space and -
|
|
if ($ccdname !~ /^[a-zA-Z0-9 -]*$/) {
|
|
return 0;}
|
|
return 1;
|
|
}
|
|
|
|
sub validdomainname
|
|
{
|
|
my $part;
|
|
|
|
# Checks a domain name against RFC1035 and RFC2181
|
|
my $domainname = $_[0];
|
|
my @parts = split (/\./, $domainname); # Split domain name at the '.'
|
|
|
|
foreach $part (@parts) {
|
|
# Each part should be at least one character in length
|
|
# but no more than 63 characters
|
|
if (length ($part) < 1 || length ($part) > 63) {
|
|
return 0;}
|
|
# Only valid characters are a-z, A-Z, 0-9, _ and -
|
|
if ($part !~ /^[a-zA-Z0-9_-]*$/) {
|
|
return 0;}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
sub validwildcarddomainname($) {
|
|
my $domainname = shift;
|
|
|
|
# Ignore any leading dots
|
|
if ($domainname =~ m/^\*\.(.*)/) {
|
|
$domainname = $1;
|
|
}
|
|
|
|
return &validdomainname($domainname);
|
|
}
|
|
|
|
sub validfqdn
|
|
{
|
|
# Checks a fully qualified domain name against RFC1035 and RFC2181
|
|
my $fqdn = $_[0];
|
|
my @parts = split (/\./, $fqdn); # Split FQDN at the '.'
|
|
if (scalar(@parts) < 2) { # At least two parts should
|
|
return 0;} # exist in a FQDN
|
|
# (i.e.hostname.domain)
|
|
|
|
for (my $index=0; $index < scalar(@parts); $index++) {
|
|
# Each part should be at least one character in length
|
|
# but no more than 63 characters
|
|
if (length ($parts[$index]) < 1 || length ($parts[$index]) > 63) {
|
|
return 0;}
|
|
if ($index eq 0) {
|
|
# This is the hostname part
|
|
# Only valid characters are a-z, A-Z, 0-9 and -
|
|
if ($parts[$index] !~ /^[a-zA-Z0-9-]*$/) {
|
|
return 0;}
|
|
# First character can only be a letter or a digit
|
|
if (substr ($parts[$index], 0, 1) !~ /^[a-zA-Z0-9]*$/) {
|
|
return 0;}
|
|
# Last character can only be a letter or a digit
|
|
if (substr ($parts[$index], -1, 1) !~ /^[a-zA-Z0-9]*$/) {
|
|
return 0;}
|
|
} else{
|
|
# This is the domain part
|
|
# Only valid characters are a-z, A-Z, 0-9, _ and -
|
|
if ($parts[$index] !~ /^[a-zA-Z0-9_-]*$/) {
|
|
return 0;}
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
sub validportrange # used to check a port range
|
|
{
|
|
my $port = $_[0]; # port values
|
|
$port =~ tr/-/:/; # replace all - with colons just in case someone used -
|
|
my $srcdst = $_[1]; # is it a source or destination port
|
|
|
|
if (!($port =~ /^(\d+)\:(\d+)$/)) {
|
|
|
|
if (!(&validport($port))) {
|
|
if ($srcdst eq 'src'){
|
|
return $Lang::tr{'source port numbers'};
|
|
} else {
|
|
return $Lang::tr{'destination port numbers'};
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
my @ports = ($1, $2);
|
|
if ($1 >= $2){
|
|
if ($srcdst eq 'src'){
|
|
return $Lang::tr{'bad source range'};
|
|
} else {
|
|
return $Lang::tr{'bad destination range'};
|
|
}
|
|
}
|
|
foreach $_ (@ports)
|
|
{
|
|
if (!(&validport($_))) {
|
|
if ($srcdst eq 'src'){
|
|
return $Lang::tr{'source port numbers'};
|
|
} else {
|
|
return $Lang::tr{'destination port numbers'};
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
sub IpInSubnet {
|
|
my $addr = shift;
|
|
my $network = shift;
|
|
my $netmask = shift;
|
|
|
|
return &Network::ip_address_in_network($addr, "$network/$netmask");
|
|
}
|
|
|
|
#
|
|
# Return the following IP (IP+1) in dotted notation.
|
|
# Call: NextIP ('1.1.1.1');
|
|
# Return: '1.1.1.2'
|
|
#
|
|
sub NextIP {
|
|
return &Network::find_next_ip_address(shift, 1);
|
|
}
|
|
|
|
sub NextIP2 {
|
|
return &Network::find_next_ip_address(shift, 4);
|
|
}
|
|
|
|
sub ipcidr {
|
|
my ($ip,$cidr) = &Net::IPv4Addr::ipv4_parse(shift);
|
|
return "$ip\/$cidr";
|
|
}
|
|
|
|
sub ipcidr2msk {
|
|
my ($ip,$cidr) = &Net::IPv4Addr::ipv4_parse(shift);
|
|
my $netmask = &Net::IPv4Addr::ipv4_cidr2msk($cidr);
|
|
return "$ip\/$netmask";
|
|
}
|
|
|
|
sub validemail {
|
|
my $address = shift;
|
|
my @parts = split( /\@/, $address );
|
|
my $count=@parts;
|
|
|
|
#check if we have one part before and after '@'
|
|
return 0 if ( $count != 2 );
|
|
|
|
#check if one of the parts starts or ends with a dot
|
|
return 0 if ( substr($parts[0],0,1) eq '.' );
|
|
return 0 if ( substr($parts[0],-1,1) eq '.' );
|
|
return 0 if ( substr($parts[1],0,1) eq '.' );
|
|
return 0 if ( substr($parts[1],-1,1) eq '.' );
|
|
|
|
#check first addresspart (before '@' sign)
|
|
return 0 if ( $parts[0] !~ m/^[a-zA-Z0-9\.!\-\_\+#]+$/ );
|
|
|
|
#check second addresspart (after '@' sign)
|
|
return 0 if ( $parts[1] !~ m/^[a-zA-Z0-9\.\-]+$/ );
|
|
|
|
return 1;
|
|
}
|
|
|
|
#
|
|
# Currently only vpnmain use this three procs (readhasharray, writehasharray, findhasharray)
|
|
# The 'key' used is numeric but is perfectly unneeded! This will to be removed so don't use
|
|
# this code. Vpnmain will be splitted in parts: x509/pki, connection ipsec, connection other,... .
|
|
#
|
|
sub readhasharray {
|
|
my ($filename, $hash) = @_;
|
|
%$hash = ();
|
|
|
|
open(FILE, $filename) or die "Unable to read file $filename";
|
|
|
|
while (<FILE>) {
|
|
my ($key, $rest, @temp);
|
|
chomp;
|
|
($key, $rest) = split (/,/, $_, 2);
|
|
if ($key =~ /^[0-9]+$/) {
|
|
@temp = split (/,/, $rest);
|
|
$hash->{$key} = \@temp;
|
|
}
|
|
}
|
|
close FILE;
|
|
return;
|
|
}
|
|
|
|
sub writehasharray {
|
|
my ($filename, $hash) = @_;
|
|
my ($key, @temp, $i);
|
|
|
|
open(FILE, ">$filename") or die "Unable to write to file $filename";
|
|
|
|
foreach $key (keys %$hash) {
|
|
if ($key =~ /^[0-9]+$/) {
|
|
print FILE "$key";
|
|
foreach $i (0 .. $#{$hash->{$key}}) {
|
|
print FILE ",$hash->{$key}[$i]";
|
|
}
|
|
print FILE "\n";
|
|
}
|
|
}
|
|
close FILE;
|
|
return;
|
|
}
|
|
|
|
sub findhasharraykey {
|
|
foreach my $i (1 .. 1000000) {
|
|
if ( ! exists $_[0]{$i}) {
|
|
return $i;
|
|
}
|
|
}
|
|
}
|
|
|
|
sub srtarray
|
|
# Darren Critchley - darrenc@telus.net - (c) 2003
|
|
# &srtarray(SortOrder, AlphaNumeric, SortDirection, ArrayToBeSorted)
|
|
# This subroutine will take the following parameters:
|
|
# ColumnNumber = the column which you want to sort on, starts at 1
|
|
# AlphaNumberic = a or n (lowercase) defines whether the sort should be alpha or numberic
|
|
# SortDirection = asc or dsc (lowercase) Ascending or Descending sort
|
|
# ArrayToBeSorted = the array that wants sorting
|
|
#
|
|
# Returns an array that is sorted to your specs
|
|
#
|
|
# If SortOrder is greater than the elements in array, then it defaults to the first element
|
|
#
|
|
{
|
|
my ($colno, $alpnum, $srtdir, @tobesorted) = @_;
|
|
my @tmparray;
|
|
my @srtedarray;
|
|
my $line;
|
|
my $newline;
|
|
my $ctr;
|
|
my $ttlitems = scalar @tobesorted; # want to know the number of rows in the passed array
|
|
if ($ttlitems < 1){ # if no items, don't waste our time lets leave
|
|
return (@tobesorted);
|
|
}
|
|
my @tmp = split(/\,/,$tobesorted[0]);
|
|
$ttlitems = scalar @tmp; # this should be the number of elements in each row of the passed in array
|
|
|
|
# Darren Critchley - validate parameters
|
|
if ($colno > $ttlitems){$colno = '1';}
|
|
$colno--; # remove one from colno to deal with arrays starting at 0
|
|
if($colno < 0){$colno = '0';}
|
|
if ($alpnum ne '') { $alpnum = lc($alpnum); } else { $alpnum = 'a'; }
|
|
if ($srtdir ne '') { $srtdir = lc($srtdir); } else { $srtdir = 'src'; }
|
|
|
|
foreach $line (@tobesorted)
|
|
{
|
|
chomp($line);
|
|
if ($line ne '') {
|
|
my @temp = split(/\,/,$line);
|
|
# Darren Critchley - juggle the fields so that the one we want to sort on is first
|
|
my $tmpholder = $temp[0];
|
|
$temp[0] = $temp[$colno];
|
|
$temp[$colno] = $tmpholder;
|
|
$newline = "";
|
|
for ($ctr=0; $ctr < $ttlitems ; $ctr++) {
|
|
$newline=$newline . $temp[$ctr] . ",";
|
|
}
|
|
chop($newline);
|
|
push(@tmparray,$newline);
|
|
}
|
|
}
|
|
if ($alpnum eq 'n') {
|
|
@tmparray = sort {$a <=> $b} @tmparray;
|
|
} else {
|
|
@tmparray = (sort @tmparray);
|
|
}
|
|
foreach $line (@tmparray)
|
|
{
|
|
chomp($line);
|
|
if ($line ne '') {
|
|
my @temp = split(/\,/,$line);
|
|
my $tmpholder = $temp[0];
|
|
$temp[0] = $temp[$colno];
|
|
$temp[$colno] = $tmpholder;
|
|
$newline = "";
|
|
for ($ctr=0; $ctr < $ttlitems ; $ctr++){
|
|
$newline=$newline . $temp[$ctr] . ",";
|
|
}
|
|
chop($newline);
|
|
push(@srtedarray,$newline);
|
|
}
|
|
}
|
|
|
|
if ($srtdir eq 'dsc') {
|
|
@tmparray = reverse(@srtedarray);
|
|
return (@tmparray);
|
|
} else {
|
|
return (@srtedarray);
|
|
}
|
|
}
|
|
|
|
sub FetchPublicIp {
|
|
my %proxysettings;
|
|
&General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
|
|
if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
|
|
my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/);
|
|
Net::SSLeay::set_proxy($peer,$peerport,$proxysettings{'UPSTREAM_USER'},$proxysettings{'UPSTREAM_PASSWORD'} );
|
|
}
|
|
my $user_agent = &MakeUserAgent();
|
|
my ($out, $response) = Net::SSLeay::get_http( 'checkip4.dns.lightningwirelabs.com',
|
|
80,
|
|
"/",
|
|
Net::SSLeay::make_headers('User-Agent' => $user_agent )
|
|
);
|
|
if ($response =~ m%HTTP/1\.. 200 OK%) {
|
|
$out =~ /Your IP address is: (\d+.\d+.\d+.\d+)/;
|
|
return $1;
|
|
}
|
|
return '';
|
|
}
|
|
|
|
#
|
|
# Check if hostname.domain provided have IP provided
|
|
# use gethostbyname to verify that
|
|
# Params:
|
|
# IP
|
|
# hostname
|
|
# domain
|
|
# Output
|
|
# 1 IP matches host.domain
|
|
# 0 not in sync
|
|
#
|
|
sub DyndnsServiceSync ($;$;$) {
|
|
|
|
my ($ip,$hostName,$domain) = @_;
|
|
my @addresses;
|
|
|
|
#fix me no ip GROUP, what is the name ?
|
|
$hostName =~ s/$General::noipprefix//;
|
|
if ($hostName) { #may be empty
|
|
$hostName = "$hostName.$domain";
|
|
@addresses = gethostbyname($hostName);
|
|
}
|
|
|
|
if ($addresses[0] eq '') { # nothing returned ?
|
|
$hostName = $domain; # try resolving with domain only
|
|
@addresses = gethostbyname($hostName);
|
|
}
|
|
|
|
if ($addresses[0] ne '') { # got something ?
|
|
#&General::log("name:$addresses[0], alias:$addresses[1]");
|
|
# Build clear text list of IP
|
|
@addresses = map ( &Socket::inet_ntoa($_), @addresses[4..$#addresses]);
|
|
if (grep (/$ip/, @addresses)) {
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
#
|
|
# This sub returns the red IP used to compare in DyndnsServiceSync
|
|
#
|
|
sub GetDyndnsRedIP {
|
|
my %settings;
|
|
&General::readhash("${General::swroot}/ddns/settings", \%settings);
|
|
|
|
open(IP, "${General::swroot}/red/local-ipaddress") or return 'unavailable';
|
|
my $ip = <IP>;
|
|
close(IP);
|
|
chomp $ip;
|
|
|
|
# 100.64.0.0/10 is reserved for dual-stack lite (http://tools.ietf.org/html/rfc6598).
|
|
if (&General::IpInSubnet ($ip,'10.0.0.0','255.0.0.0') ||
|
|
&General::IpInSubnet ($ip,'172.16.0.0.','255.240.0.0') ||
|
|
&General::IpInSubnet ($ip,'192.168.0.0','255.255.0.0') ||
|
|
&General::IpInSubnet ($ip,'100.64.0.0', '255.192.0.0'))
|
|
{
|
|
if ($settings{'BEHINDROUTER'} eq 'FETCH_IP') {
|
|
my $RealIP = &General::FetchPublicIp;
|
|
$ip = (&General::validip ($RealIP) ? $RealIP : 'unavailable');
|
|
}
|
|
}
|
|
return $ip;
|
|
}
|
|
|
|
# Translate ICMP code to text
|
|
# ref: http://www.iana.org/assignments/icmp-parameters
|
|
sub GetIcmpDescription ($) {
|
|
my $index = shift;
|
|
my @icmp_description = (
|
|
'Echo Reply', #0
|
|
'Unassigned',
|
|
'Unassigned',
|
|
'Destination Unreachable',
|
|
'Source Quench',
|
|
'Redirect',
|
|
'Alternate Host Address',
|
|
'Unassigned',
|
|
'Echo',
|
|
'Router Advertisement',
|
|
'Router Solicitation', #10
|
|
'Time Exceeded',
|
|
'Parameter Problem',
|
|
'Timestamp',
|
|
'Timestamp Reply',
|
|
'Information Request',
|
|
'Information Reply',
|
|
'Address Mask Request',
|
|
'Address Mask Reply',
|
|
'Reserved (for Security)',
|
|
'Reserved (for Robustness Experiment)', #20
|
|
'Reserved',
|
|
'Reserved',
|
|
'Reserved',
|
|
'Reserved',
|
|
'Reserved',
|
|
'Reserved',
|
|
'Reserved',
|
|
'Reserved',
|
|
'Reserved',
|
|
'Traceroute', #30
|
|
'Datagram Conversion Error',
|
|
'Mobile Host Redirect',
|
|
'IPv6 Where-Are-You',
|
|
'IPv6 I-Am-Here',
|
|
'Mobile Registration Request',
|
|
'Mobile Registration Reply',
|
|
'Domain Name Request',
|
|
'Domain Name Reply',
|
|
'SKIP',
|
|
'Photur', #40
|
|
'Experimental');
|
|
if ($index>41) {return 'unknown'} else {return $icmp_description[$index]};
|
|
}
|
|
|
|
sub GetCoreUpdateVersion() {
|
|
my $core_update;
|
|
|
|
open(FILE, "/opt/pakfire/db/core/mine");
|
|
while (<FILE>) {
|
|
$core_update = $_;
|
|
last;
|
|
}
|
|
close(FILE);
|
|
|
|
return $core_update;
|
|
}
|
|
|
|
sub MakeUserAgent() {
|
|
my $user_agent = "IPFire/$General::version";
|
|
|
|
my $core_update = &GetCoreUpdateVersion();
|
|
if ($core_update ne "") {
|
|
$user_agent .= "/$core_update";
|
|
}
|
|
|
|
return $user_agent;
|
|
}
|
|
|
|
sub RedIsWireless() {
|
|
# This function checks if a network device is a wireless device.
|
|
|
|
my %settings = ();
|
|
&readhash("${General::swroot}/ethernet/settings", \%settings);
|
|
|
|
# Find the name of the network device.
|
|
my $device = $settings{'RED_DEV'};
|
|
|
|
# Exit, if no device is configured.
|
|
return 0 if ($device eq "");
|
|
|
|
# Return 1 if the device is a wireless one.
|
|
my $path = "/sys/class/net/$device/wireless";
|
|
if (-d $path) {
|
|
return 1;
|
|
}
|
|
|
|
# Otherwise return zero.
|
|
return 0;
|
|
}
|
|
|
|
# Function to read a file with UTF-8 charset.
|
|
sub read_file_utf8 ($) {
|
|
my ($file) = @_;
|
|
|
|
open my $in, '<:encoding(UTF-8)', $file or die "Could not open '$file' for reading $!";
|
|
local $/ = undef;
|
|
my $all = <$in>;
|
|
close $in;
|
|
|
|
return $all;
|
|
}
|
|
|
|
# Function to write a file with UTF-8 charset.
|
|
sub write_file_utf8 ($) {
|
|
my ($file, $content) = @_;
|
|
|
|
open my $out, '>:encoding(UTF-8)', $file or die "Could not open '$file' for writing $!";;
|
|
print $out $content;
|
|
close $out;
|
|
|
|
return;
|
|
}
|
|
|
|
my $FIREWALL_RELOAD_INDICATOR = "${General::swroot}/firewall/reread";
|
|
|
|
sub firewall_config_changed() {
|
|
open FILE, ">$FIREWALL_RELOAD_INDICATOR" or die "Could not open $FIREWALL_RELOAD_INDICATOR";
|
|
close FILE;
|
|
}
|
|
|
|
sub firewall_needs_reload() {
|
|
if (-e "$FIREWALL_RELOAD_INDICATOR") {
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
sub firewall_reload() {
|
|
&system("/usr/local/bin/firewallctrl");
|
|
}
|
|
|
|
# Function which will return the used interface for the red network zone (red0, ppp0, etc).
|
|
# if you change this also check speed.cgi that include a local copy for systemload reasons
|
|
sub get_red_interface() {
|
|
my $interface;
|
|
my $red_iface_file = "${General::swroot}/red/iface";
|
|
|
|
if (-e $red_iface_file) {
|
|
open(IFACE, "$red_iface_file") or die "Could not open $red_iface_file";
|
|
$interface = <IFACE>;
|
|
close(IFACE);
|
|
chomp $interface;
|
|
}
|
|
|
|
return $interface;
|
|
}
|
|
|
|
sub number_cpu_cores() {
|
|
open my $cpuinfo, "/proc/cpuinfo" or die "Can't open cpuinfo: $!\n";
|
|
my $cores = scalar (map /^processor/, <$cpuinfo>);
|
|
close $cpuinfo;
|
|
|
|
return $cores;
|
|
}
|
|
|
|
# Tiny function to grab a single IP-address from a given file.
|
|
sub grab_address_from_file($) {
|
|
my ($file) = @_;
|
|
|
|
my $address;
|
|
|
|
# Check if the given file exists.
|
|
if(-f $file) {
|
|
# Open the file for reading.
|
|
open(FILE, $file) or die "Could not read from $file. $!\n";
|
|
|
|
# Read the address from the file.
|
|
$address = <FILE>;
|
|
|
|
# Close filehandle.
|
|
close(FILE);
|
|
|
|
# Remove newlines.
|
|
chomp($address);
|
|
|
|
# Check if the obtained address is valid.
|
|
if (&validip($address)) {
|
|
# Return the address.
|
|
return $address;
|
|
}
|
|
}
|
|
|
|
# Return nothing.
|
|
return;
|
|
}
|
|
|
|
# Function to get all configured and enabled nameservers.
|
|
sub get_nameservers () {
|
|
my %settings;
|
|
my %servers;
|
|
|
|
my @nameservers;
|
|
|
|
# Read DNS configuration.
|
|
&readhash("$General::swroot/dns/settings", \%settings);
|
|
|
|
# Read configured DNS servers.
|
|
&readhasharray("$General::swroot/dns/servers", \%servers);
|
|
|
|
# Check if the ISP assigned server should be used.
|
|
if ($settings{'USE_ISP_NAMESERVERS'} eq "on") {
|
|
# Assign ISP nameserver files.
|
|
my @ISP_nameserver_files = ( "/var/run/dns1", "/var/run/dns2" );
|
|
|
|
# Loop through the array of ISP assigned DNS servers.
|
|
foreach my $file (@ISP_nameserver_files) {
|
|
# Grab the IP address.
|
|
my $address = &grab_address_from_file($file);
|
|
|
|
# Check if an address has been grabbed.
|
|
if ($address) {
|
|
# Add the address to the array of nameservers.
|
|
push(@nameservers, $address);
|
|
}
|
|
}
|
|
}
|
|
|
|
# Check if DNS servers are configured.
|
|
if (%servers) {
|
|
# Loop through the hash of configured DNS servers.
|
|
foreach my $id (keys %servers) {
|
|
my $address = $servers{$id}[0];
|
|
my $status = $servers{$id}[2];
|
|
|
|
# Check if the current processed server is enabled.
|
|
if ($status eq "enabled") {
|
|
# Add the address to the array of nameservers.
|
|
push(@nameservers, $address);
|
|
}
|
|
}
|
|
}
|
|
|
|
# Return the array.
|
|
return &uniq(@nameservers);
|
|
}
|
|
|
|
# Function to format a string containing the amount of bytes to
|
|
# something human-readable.
|
|
sub formatBytes {
|
|
# Private array which contains the units.
|
|
my @units = qw(B KB MB GB TB PB);
|
|
|
|
my $bytes = shift;
|
|
my $unit;
|
|
|
|
# Loop through the array of units.
|
|
foreach my $element (@units) {
|
|
# Assign current processed element to unit.
|
|
$unit = $element;
|
|
|
|
# Break loop if the bytes are less than the next unit.
|
|
last if $bytes < 1024;
|
|
|
|
# Divide bytes amount with 1024.
|
|
$bytes /= 1024;
|
|
}
|
|
|
|
# Return the divided and rounded bytes count and the unit.
|
|
return sprintf("%.2f %s", $bytes, $unit);
|
|
}
|
|
|
|
# Function to collect and generate a hash for translating protocol numbers into
|
|
# their names.
|
|
sub generateProtoTransHash () {
|
|
# File which contains the protocol definitions.
|
|
my $protocols_file = "/etc/protocols";
|
|
|
|
my %protocols = ();
|
|
|
|
# Open protocols file.
|
|
open(FILE, "$protocols_file") or die "Could not open $protocols_file. $!\n";
|
|
|
|
# Loop through the file.
|
|
while (my $line = <FILE>) {
|
|
# Skip comments.
|
|
next if ($line =~ /^\#/);
|
|
|
|
# Skip blank lines.
|
|
next if ($line =~ /^\s*$/);
|
|
|
|
# Remove any newlines.
|
|
chomp($line);
|
|
|
|
# Split line content.
|
|
my ($protocol_lc, $number, $protocol_uc, $comment) = split(' ', $line);
|
|
|
|
# Add proto details to the hash of protocols.
|
|
$protocols{$number} = $protocol_uc;
|
|
}
|
|
|
|
# Close file handle.
|
|
close(FILE);
|
|
|
|
# Return the hash.
|
|
return %protocols;
|
|
}
|
|
|
|
# Cloud Stuff
|
|
|
|
sub running_in_cloud() {
|
|
return &running_on_ec2() || &running_on_gcp();
|
|
}
|
|
|
|
sub running_on_ec2() {
|
|
if (-e "/var/run/aws-instance-id") {
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
sub running_on_gcp() {
|
|
if (-e "/var/run/gcp-instance-id") {
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
1;
|