]> git.ipfire.org Git - people/teissler/ipfire-2.x.git/blobdiff - config/cfgroot/general-functions.pl
VPN Checksubnets: Now the remote subnets (OpenVPN/IPSec) are checked. If they are...
[people/teissler/ipfire-2.x.git] / config / cfgroot / general-functions.pl
index f94cdbf16c49b31054125ff12c6fea9119b2cfbd..adfba5489177320e2b1528223156a620089863bf 100644 (file)
@@ -39,6 +39,96 @@ sub log
        $logmessage = $1;
        system('logger', '-t', $tag, $logmessage);
 }
+sub setup_default_networks
+{
+       my %netsettings=();
+       my $defaultNetworks = shift;
+       
+       &readhash("/var/ipfire/ethernet/settings", \%netsettings);
+       
+       # Get current defined networks (Red, Green, Blue, Orange)
+       $defaultNetworks->{$Lang::tr{'fwhost any'}}{'IPT'} = "0.0.0.0/0.0.0.0";
+       $defaultNetworks->{$Lang::tr{'fwhost any'}}{'NAME'} = "ALL";
+               
+       $defaultNetworks->{$Lang::tr{'green'}}{'IPT'} = "$netsettings{'GREEN_NETADDRESS'}/$netsettings{'GREEN_NETMASK'}";
+       $defaultNetworks->{$Lang::tr{'green'}}{'NET'} = "$netsettings{'GREEN_ADDRESS'}";
+       $defaultNetworks->{$Lang::tr{'green'}}{'NAME'} = "GREEN";
+
+       if ($netsettings{'RED_DEV'} ne ''){
+               $defaultNetworks->{$Lang::tr{'fwdfw red'}}{'IPT'} = "$netsettings{'RED_NETADDRESS'}/$netsettings{'RED_NETMASK'}";
+               $defaultNetworks->{$Lang::tr{'fwdfw red'}}{'NET'} = "$netsettings{'RED_ADDRESS'}";
+               $defaultNetworks->{$Lang::tr{'fwdfw red'}}{'NAME'} = "RED";
+       }
+       if ($netsettings{'ORANGE_DEV'} ne ''){
+               $defaultNetworks->{$Lang::tr{'orange'}}{'IPT'} = "$netsettings{'ORANGE_NETADDRESS'}/$netsettings{'ORANGE_NETMASK'}";
+               $defaultNetworks->{$Lang::tr{'orange'}}{'NET'} = "$netsettings{'ORANGE_ADDRESS'}";
+               $defaultNetworks->{$Lang::tr{'orange'}}{'NAME'} = "ORANGE";
+       }
+
+       if ($netsettings{'BLUE_DEV'} ne ''){
+               $defaultNetworks->{$Lang::tr{'blue'}}{'IPT'} = "$netsettings{'BLUE_NETADDRESS'}/$netsettings{'BLUE_NETMASK'}";
+               $defaultNetworks->{$Lang::tr{'blue'}}{'NET'} = "$netsettings{'BLUE_ADDRESS'}";
+               $defaultNetworks->{$Lang::tr{'blue'}}{'NAME'} = "BLUE";
+       }
+       
+       #IPFire himself
+       $defaultNetworks->{'IPFire'}{'NAME'} = "IPFire";
+
+       # OpenVPN
+       if(-e "${General::swroot}/ovpn/settings")
+       {
+               my %ovpnSettings = ();
+               &readhash("${General::swroot}/ovpn/settings", \%ovpnSettings);
+
+               # OpenVPN on Red?
+               if(defined($ovpnSettings{'DOVPN_SUBNET'}))
+               {
+                       my ($ip,$sub) = split(/\//,$ovpnSettings{'DOVPN_SUBNET'});
+                       $sub=&General::iporsubtocidr($sub);
+                       my @tempovpnsubnet = split("\/", $ovpnSettings{'DOVPN_SUBNET'});
+                       $defaultNetworks->{'OpenVPN ' ."($ip/$sub)"}{'ADR'} = $tempovpnsubnet[0];
+                       $defaultNetworks->{'OpenVPN ' ."($ip/$sub)"}{'NAME'} = "OpenVPN-Dyn";
+               }
+       } # end OpenVPN
+       # IPsec RW NET
+       if(-e "${General::swroot}/vpn/settings")
+       {
+               my %ipsecsettings = ();
+               &readhash("${General::swroot}/vpn/settings", \%ipsecsettings);
+               if($ipsecsettings{'RW_NET'} ne '')
+               {
+                       my ($ip,$sub) = split(/\//,$ipsecsettings{'RW_NET'});
+                       $sub=&General::iporsubtocidr($sub);
+                       my @tempipsecsubnet = split("\/", $ipsecsettings{'RW_NET'});
+                       $defaultNetworks->{'IPsec RW (' .$ip."/".$sub.")"}{'ADR'} = $tempipsecsubnet[0];
+                       $defaultNetworks->{'IPsec RW (' .$ip."/".$sub.")"}{'NAME'} = "IPsec RW";
+                       $defaultNetworks->{'IPsec RW (' .$ip."/".$sub.")"}{'NET'} = &getnextip($ip);
+               }
+       }
+}
+sub get_aliases
+{
+       
+       my $defaultNetworks = shift;
+       open(FILE, "${General::swroot}/ethernet/aliases") or die 'Unable to open aliases file.';
+       my @current = <FILE>;
+       close(FILE);
+       my $ctr = 0;
+       foreach my $line (@current)
+       {
+               if ($line ne ''){
+                       chomp($line);
+                       my @temp = split(/\,/,$line);
+                       if ($temp[2] eq '') {
+                               $temp[2] = "Alias $ctr : $temp[0]";
+                       }
+                       $defaultNetworks->{$temp[2]}{'IPT'} = "$temp[0]";
+                       $defaultNetworks->{$temp[2]}{'NET'} = "$temp[0]";
+                       
+                       $ctr++;
+               }
+       }
+}
 
 sub readhash
 {
@@ -139,21 +229,36 @@ sub writehashpart
        close FILE;
 }
 
-sub age
-{
+sub age {
        my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size,
-               $atime, $mtime, $ctime, $blksize, $blocks) = stat $_[0];
-       my $now = time;
-
-       my $totalsecs = $now - $mtime;
-       my $days = int($totalsecs / 86400);
-       my $totalhours = int($totalsecs / 3600);
-       my $hours = $totalhours % 24;
-       my $totalmins = int($totalsecs / 60);
-       my $mins = $totalmins % 60;
+               $atime, $mtime, $ctime, $blksize, $blocks) = stat $_[0];
+       my $totalsecs = time() - $mtime;
+       my @s = ();
+
        my $secs = $totalsecs % 60;
+       $totalsecs /= 60;
+       if ($secs > 0) {
+               push(@s, "${secs}s");
+       }
+
+       my $min = $totalsecs % 60;
+       $totalsecs /= 60;
+       if ($min > 0) {
+               push(@s, "${min}m");
+       }
 
-       return "${days}d ${hours}h ${mins}m ${secs}s";
+       my $hrs = $totalsecs % 24;
+       $totalsecs /= 24;
+       if ($hrs > 0) {
+               push(@s, "${hrs}h");
+       }
+
+       my $days = int($totalsecs);
+       if ($days > 0) {
+               push(@s, "${days}d");
+       }
+
+       return join(" ", reverse(@s));
 }
 
 sub validip
@@ -401,24 +506,46 @@ sub validipandmask
 
 sub checksubnets
 {
-       my %ccdconfhash=();                     
-       my @ccdconf=();                         
-       my $ccdname=$_[0];                      
-       my $ccdnet=$_[1];                       
+       my %ccdconfhash=();
+       my %ovpnconfhash=();
+       my %vpnconf=();
+       my %ipsecconf=();
+       my %ownnet=();
+       my %ovpnconf=();
+       my @ccdconf=();
+       my $ccdname=$_[0];
+       my $ccdnet=$_[1];
+       my $ownnet=$_[2];
        my $errormessage;
        my ($ip,$cidr)=split(/\//,$ccdnet);
        $cidr=&iporsubtocidr($cidr);
+
        #get OVPN-Subnet (dynamic range)
-       my %ovpnconf=();
        &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 $errormessage;
        }
-       #check if we use a network-name/subnet that already exists
+
+       #check if we try to use same network as another ovpn N2N
+       if($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{$key}[1]);
@@ -430,32 +557,45 @@ sub checksubnets
                my ($newip,$newsub) = split(/\//,$ccdnet);
                if (&IpInSubnet($newip,$ccdconf[0],&iporsubtodec($ccdconf[1]))) 
                {
-                       $errormessage=$errormessage.$Lang::tr{'ccd err issubnet'}."<br>";
+                       $errormessage=$errormessage.$Lang::tr{'ccd err issubnet'}." $ccdconfhash{$key}[0]<br>";
                        return $errormessage;
                }
        }
+
        #check if we use a ipsec right network which is already defined
-       my %ipsecconf=();
-       &General::readhasharray("${General::swroot}/vpn/config", \%ipsecconf);
-       foreach my $key (keys %ipsecconf){
-               if ($ipsecconf{$key}[11] ne ''){
-                       my ($ipsecip,$ipsecsub) = split (/\//, $ipsecconf{$key}[11]);
-                       $ipsecsub=&iporsubtodec($ipsecsub);
-                       if($ipsecconf{$key}[1] ne $ccdname){
-                               if ( &IpInSubnet ($ip,$ipsecip,$ipsecsub) ){
-                                       $errormessage=$Lang::tr{'ccd err isipsecnet'}." Name:  $ipsecconf{$key}[1]";
-                                       return $errormessage;
+       if($ownnet ne 'ipsec'){
+               &General::readhasharray("${General::swroot}/vpn/config", \%ipsecconf);
+               foreach my $key (keys %ipsecconf){
+                       if ($ipsecconf{$key}[11] ne ''){
+                               my ($ipsecip,$ipsecsub) = split (/\//, $ipsecconf{$key}[11]);
+                               $ipsecsub=&iporsubtodec($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 $errormessage;
+               }
+       }
+
        #check if we use one of ipfire's networks (green,orange,blue)
-       my %ownnet=();
        &readhash("${General::swroot}/ethernet/settings", \%ownnet);
-       if (($ownnet{'GREEN_NETADDRESS'}        ne '' && $ownnet{'GREEN_NETADDRESS'}    ne '0.0.0.0') && &IpInSubnet($ownnet{'GREEN_NETADDRESS'},$ip,&iporsubtodec($cidr))){ $errormessage=$Lang::tr{'ccd err green'};return $errormessage;}
-       if (($ownnet{'ORANGE_NETADDRESS'}       ne '' && $ownnet{'ORANGE_NETADDRESS'}   ne '0.0.0.0') && &IpInSubnet($ownnet{'ORANGE_NETADDRESS'},$ip,&iporsubtodec($cidr))){ $errormessage=$Lang::tr{'ccd err orange'};return $errormessage;}
-       if (($ownnet{'BLUE_NETADDRESS'}         ne '' && $ownnet{'BLUE_NETADDRESS'}     ne '0.0.0.0') && &IpInSubnet($ownnet{'BLUE_NETADDRESS'},$ip,&iporsubtodec($cidr))){ $errormessage=$Lang::tr{'ccd err blue'};return $errormessage;}
-       if (($ownnet{'RED_NETADDRESS'}          ne '' && $ownnet{'RED_NETADDRESS'}              ne '0.0.0.0') && &IpInSubnet($ownnet{'RED_NETADDRESS'},$ip,&iporsubtodec($cidr))){ $errormessage=$Lang::tr{'ccd err red'};return $errormessage;}
+       if (($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;}
 }
 
 
@@ -810,13 +950,14 @@ sub FetchPublicIp {
         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 ($out, $response) = Net::SSLeay::get_http(  'checkip.dyndns.org',
+    my $user_agent = &MakeUserAgent();
+    my ($out, $response) = Net::SSLeay::get_http(  'checkip4.dns.lightningwirelabs.com',
                                                    80,
                                                    "/",
-                                                   Net::SSLeay::make_headers('User-Agent' => 'IPFire' )
+                                                   Net::SSLeay::make_headers('User-Agent' => $user_agent )
                                                );
     if ($response =~ m%HTTP/1\.. 200 OK%) {
-       $out =~ /Current IP Address: (\d+.\d+.\d+.\d+)/;
+       $out =~ /Your IP address is: (\d+.\d+.\d+.\d+)/;
        return $1;
     }
     return '';
@@ -872,9 +1013,11 @@ sub GetDyndnsRedIP {
     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,'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 $RealIP = &General::FetchPublicIp;
@@ -931,6 +1074,95 @@ sub GetIcmpDescription ($) {
     'SKIP',
     'Photur',                          #40
     'Experimental');
-    if ($index>41) {return 'unknown'} else {return @icmp_description[$index]};
+    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");
+}
+
 1;