OpenVPN: Deleted mtu-disc completely since it has been dropped.

[ipfire-2.x.git] / html / cgi-bin / ovpnmain.cgi

diff --git a/html/cgi-bin/ovpnmain.cgi b/html/cgi-bin/ovpnmain.cgi
index 4bc3473abf024364c808f30fa5ccda09fc790a78..976300fc72e77dd3e23e26bca243dc61faaa4606 100644 (file)
--- a/html/cgi-bin/ovpnmain.cgi
+++ b/html/cgi-bin/ovpnmain.cgi
@@ -64,6 +64,8 @@ my %cahash=();
 my %selected=();
 my $warnmessage = '';
 my $errormessage = '';
+my $cryptoerror = '';
+my $cryptowarning = '';
 my %settings=();
 my $routes_push_file = '';
 my $confighost="${General::swroot}/fwhosts/customhosts";
@@ -97,6 +99,8 @@ $cgiparams{'DCIPHER'} = '';
 $cgiparams{'DAUTH'} = '';
 $cgiparams{'TLSAUTH'} = '';
 $routes_push_file = "${General::swroot}/ovpn/routes_push";
+# Perform crypto and configration test
+&pkiconfigcheck;
 
 # Add CCD files if not already presant
 unless (-e $routes_push_file) {
@@ -199,6 +203,45 @@ sub deletebackupcert
        }
 }
 
+###
+### Check for PKI and configure problems
+###
+
+sub pkiconfigcheck
+{
+       # Warning if DH parameter is 1024 bit
+       if (-f "${General::swroot}/ovpn/ca/$cgiparams{'DH_NAME'}") {
+               my $dhparameter = `/usr/bin/openssl dhparam -text -in ${General::swroot}/ovpn/ca/$cgiparams{'DH_NAME'}`;
+               my @dhbit = ($dhparameter =~ /(\d+)/);
+               if ($1 < 2048) {
+                       $cryptoerror = "$Lang::tr{'ovpn error dh'}";
+                       goto CRYPTO_ERROR;
+               }
+       }
+
+       # Warning if md5 is in usage
+       if (-f "${General::swroot}/ovpn/certs/servercert.pem") {
+               my $signature = `/usr/bin/openssl x509 -noout -text -in ${General::swroot}/ovpn/certs/servercert.pem`;
+               if ($signature =~ /md5WithRSAEncryption/) {
+                       $cryptoerror = "$Lang::tr{'ovpn error md5'}";
+                       goto CRYPTO_ERROR;
+               }
+       }
+
+       CRYPTO_ERROR:
+
+       # Warning if certificate is not compliant to RFC3280 TLS rules
+       if (-f "${General::swroot}/ovpn/certs/servercert.pem") {
+               my $extendkeyusage = `/usr/bin/openssl x509 -noout -text -in ${General::swroot}/ovpn/certs/servercert.pem`;
+               if ($extendkeyusage !~ /TLS Web Server Authentication/) {
+                       $cryptowarning = "$Lang::tr{'ovpn warning rfc3280'}";
+                       goto CRYPTO_WARNING;
+               }
+       }
+
+       CRYPTO_WARNING:
+}
+
 sub writeserverconf {
     my %sovpnsettings = ();  
     my @temp = ();  
@@ -228,7 +271,7 @@ sub writeserverconf {
     print CONF "server $tempovpnsubnet[0] $tempovpnsubnet[1]\n";
     #print CONF "push \"route $netsettings{'GREEN_NETADDRESS'} $netsettings{'GREEN_NETMASK'}\"\n";
 
-    # Check if we are using mssfix, fragment or mtu-disc and set the corretct mtu of 1500.
+    # Check if we are using mssfix, fragment and set the corretct mtu of 1500.
     # If we doesn't use one of them, we can use the configured mtu value.
     if ($sovpnsettings{'MSSFIX'} eq 'on') 
        { print CONF "tun-mtu 1500\n"; }
@@ -1069,7 +1112,7 @@ unless(-d "${General::swroot}/ovpn/n2nconf/$cgiparams{'NAME'}"){mkdir "${General
   close(CLIENTCONF);
 
 }
-  
+
 ###
 ### Save main settings
 ###
@@ -1181,7 +1224,7 @@ SETTINGS_ERROR:
            delete $confighash{$cgiparams{'$key'}};
        }
 
-       system ("/usr/local/bin/openvpnctrl -drrd $name");
+       system ("/usr/local/bin/openvpnctrl -drrd $name &>/dev/null");
     }
     while ($file = glob("${General::swroot}/ovpn/ca/*")) {
        unlink $file;
@@ -1336,7 +1379,7 @@ END
        goto UPLOADCA_ERROR;
     }
     my $temp = `/usr/bin/openssl dhparam -text -in $filename`;
-    if ($temp !~ /DH Parameters: \((1024|2048|3072|4096) bit\)/) {
+    if ($temp !~ /DH Parameters: \((2048|3072|4096) bit\)/) {
         $errormessage = $Lang::tr{'not a valid dh key'};
         unlink ($filename);
         goto UPLOADCA_ERROR;
@@ -2140,15 +2183,6 @@ if ($confighash{$cgiparams{'KEY'}}[3] eq 'net'){
    if ($confighash{$cgiparams{'KEY'}}[24] ne '') {print CLIENTCONF "fragment $confighash{$cgiparams{'KEY'}}[24]\n";}
    if ($confighash{$cgiparams{'KEY'}}[23] eq 'on') {print CLIENTCONF "mssfix\n";}
    }
-   if (($confighash{$cgiparams{'KEY'}}[38] eq 'yes') ||
-       ($confighash{$cgiparams{'KEY'}}[38] eq 'maybe') ||
-       ($confighash{$cgiparams{'KEY'}}[38] eq 'no' )) {
-       if (($confighash{$cgiparams{'KEY'}}[23] ne 'on') || ($confighash{$cgiparams{'KEY'}}[24] eq '')) {
-               if ($tunmtu eq '1500' ) {
-                       print CLIENTCONF "mtu-disc $confighash{$cgiparams{'KEY'}}[38]\n";
-               }
-       }
-   }
    # Check host certificate if X509 is RFC3280 compliant.
    # If not, old --ns-cert-type directive will be used.
    # If appropriate key usage extension exists, new --remote-cert-tls directive will be used.
@@ -2229,7 +2263,7 @@ else
     print CLIENTCONF "dev tun\r\n";
     print CLIENTCONF "proto $vpnsettings{'DPROTOCOL'}\r\n";
 
-    # Check if we are using fragment, mssfix or mtu-disc and set MTU to 1500
+    # Check if we are using fragment, mssfix and set MTU to 1500
     # or use configured value.
     if ($vpnsettings{FRAGMENT} ne '' && $vpnsettings{DPROTOCOL} ne 'tcp' )
        { print CLIENTCONF "tun-mtu 1500\r\n"; }
@@ -3335,7 +3369,6 @@ my $complzoactive;
 my $mssfixactive;
 my $authactive;
 my $n2nfragment;
-my @n2nmtudisc = split(/ /, (grep { /^mtu-disc/ } @firen2nconf)[0]);
 my @n2nproto2 = split(/ /, (grep { /^proto/ } @firen2nconf)[0]);
 my @n2nproto = split(/-/, $n2nproto2[1]);
 my @n2nport = split(/ /, (grep { /^port/ } @firen2nconf)[0]);
@@ -3371,7 +3404,6 @@ $n2nremsub[2] =~ s/\n|\r//g;
 $n2nlocalsub[2] =~ s/\n|\r//g;
 $n2nfragment[1] =~ s/\n|\r//g;
 $n2nmgmt[2] =~ s/\n|\r//g;
-$n2nmtudisc[1] =~ s/\n|\r//g;
 $n2ncipher[1] =~ s/\n|\r//g;
 $n2nauth[1] =~ s/\n|\r//g;
 chomp ($complzoactive);
@@ -3448,7 +3480,6 @@ foreach my $dkey (keys %confighash) {
        $confighash{$key}[29] = $n2nport[1];
        $confighash{$key}[30] = $complzoactive;
        $confighash{$key}[31] = $n2ntunmtu[1];
-       $confighash{$key}[38] = $n2nmtudisc[1];
        $confighash{$key}[39] = $n2nauth[1];
        $confighash{$key}[40] = $n2ncipher[1];
        $confighash{$key}[41] = 'disabled';
@@ -3488,7 +3519,6 @@ foreach my $dkey (keys %confighash) {
                <tr><td class='boldbase' nowrap='nowrap'>MSSFIX:</td><td><b>$confighash{$key}[23]</b></td></tr>
                <tr><td class='boldbase' nowrap='nowrap'>Fragment:</td><td><b>$confighash{$key}[24]</b></td></tr>
                <tr><td class='boldbase' nowrap='nowrap'>$Lang::tr{'MTU'}</td><td><b>$confighash{$key}[31]</b></td></tr>
-               <tr><td class='boldbase' nowrap='nowrap'>$Lang::tr{'ovpn mtu-disc'}</td><td><b>$confighash{$key}[38]</b></td></tr>
                <tr><td class='boldbase' nowrap='nowrap'>Management Port </td><td><b>$confighash{$key}[22]</b></td></tr>
                <tr><td class='boldbase' nowrap='nowrap'>$Lang::tr{'ovpn hmac'}:</td><td><b>$confighash{$key}[39]</b></td></tr>
                <tr><td class='boldbase' nowrap='nowrap'>$Lang::tr{'cipher'}</td><td><b>$confighash{$key}[40]</b></td></tr>
@@ -5135,6 +5165,20 @@ END
        &Header::closebox();
     }
 
+       if ($cryptoerror) {
+               &Header::openbox('100%', 'LEFT', $Lang::tr{'crypto error'});
+               print "<class name='base'>$cryptoerror";
+               print "&nbsp;</class>";
+               &Header::closebox();
+       }
+
+       if ($cryptowarning) {
+               &Header::openbox('100%', 'LEFT', $Lang::tr{'crypto warning'});
+               print "<class name='base'>$cryptowarning";
+               print "&nbsp;</class>";
+               &Header::closebox();
+       }
+
        if ($warnmessage) {
                &Header::openbox('100%', 'LEFT', $Lang::tr{'warning messages'});
                print "$warnmessage<br>";