my %cgiparams=();
my %checked=();
my %selected=();
+my %ignored=();
# Read-in main settings, for language, theme and colors.
&General::readhash("${General::swroot}/main/settings", \%mainsettings);
# File which contains wheater the rules should be changed.
my $modify_sids_file = "$IDS::settingsdir/oinkmaster-modify-sids.conf";
+# File which stores the configured settings for whitelisted addresses.
+my $ignoredfile = "$IDS::settingsdir/ignored";
+
+# File which contains the rules to whitelist addresses on suricata.
+my $whitelistfile = "$IDS::rulespath/whitelist.rules";
+
my $errormessage;
# Create files if they does not exist yet.
unless (-f "$disabled_sids_file") { &IDS::create_empty_file($disabled_sids_file); }
unless (-f "$modify_sids_file") { &IDS::create_empty_file($modify_sids_file); }
unless (-f "$idsusedrulefilesfile") { &IDS::create_empty_file($idsusedrulefilesfile); }
+unless (-f "$ignoredfile") { &IDS::create_empty_file($ignoredfile); }
+unless (-f "$whitelistfile" ) { &IDS::create_empty_file($whitelistfile); }
&Header::showhttpheaders();
#Get GUI values
&Header::getcgihash(\%cgiparams);
+## Add/edit an entry to the ignore file.
+#
+if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq $Lang::tr{'update'})) {
+
+ # Check if any input has been performed.
+ if ($cgiparams{'IGNORE_ENTRY_ADDRESS'} ne '') {
+
+ # Check if the given input is no valid IP-address or IP-address with subnet, display an error message.
+ if ((!&General::validip($cgiparams{'IGNORE_ENTRY_ADDRESS'})) && (!&General::validipandmask($cgiparams{'IGNORE_ENTRY_ADDRESS'}))) {
+ $errormessage = "$Lang::tr{'guardian invalid address or subnet'}";
+ }
+ } else {
+ $errormessage = "$Lang::tr{'guardian empty input'}";
+ }
+
+ # Go further if there was no error.
+ if ($errormessage eq '') {
+ my %ignored = ();
+ my $id;
+ my $status;
+
+ # Assign hash values.
+ my $new_entry_address = $cgiparams{'IGNORE_ENTRY_ADDRESS'};
+ my $new_entry_remark = $cgiparams{'IGNORE_ENTRY_REMARK'};
+
+ # Read-in ignoredfile.
+ &General::readhasharray($ignoredfile, \%ignored);
+
+ # Check if we should edit an existing entry and got an ID.
+ if (($cgiparams{'WHITELIST'} eq $Lang::tr{'update'}) && ($cgiparams{'ID'})) {
+ # Assin the provided id.
+ $id = $cgiparams{'ID'};
+
+ # Undef the given ID.
+ undef($cgiparams{'ID'});
+
+ # Grab the configured status of the corresponding entry.
+ $status = $ignored{$id}[2];
+ } else {
+ # Each newly added entry automatically should be enabled.
+ $status = "enabled";
+
+ # Generate the ID for the new entry.
+ #
+ # Sort the keys by their ID and store them in an array.
+ my @keys = sort { $a <=> $b } keys %ignored;
+
+ # Reverse the key array.
+ my @reversed = reverse(@keys);
+
+ # Obtain the last used id.
+ my $last_id = @reversed[0];
+
+ # Increase the last id by one and use it as id for the new entry.
+ $id = ++$last_id;
+ }
+
+ # Add/Modify the entry to/in the ignored hash.
+ $ignored{$id} = ["$new_entry_address", "$new_entry_remark", "$status"];
+
+ # Write the changed ignored hash to the ignored file.
+ &General::writehasharray($ignoredfile, \%ignored);
+
+ # Regenerate the ignore file.
+ &GenerateIgnoreFile();
+ }
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
+ }
+
+## Toggle Enabled/Disabled for an existing entry on the ignore list.
+#
+
+} elsif ($cgiparams{'WHITELIST'} eq $Lang::tr{'toggle enable disable'}) {
+ my %ignored = ();
+
+ # Only go further, if an ID has been passed.
+ if ($cgiparams{'ID'}) {
+ # Assign the given ID.
+ my $id = $cgiparams{'ID'};
+
+ # Undef the given ID.
+ undef($cgiparams{'ID'});
+
+ # Read-in ignoredfile.
+ &General::readhasharray($ignoredfile, \%ignored);
+
+ # Grab the configured status of the corresponding entry.
+ my $status = $ignored{$id}[2];
+
+ # Switch the status.
+ if ($status eq "disabled") {
+ $status = "enabled";
+ } else {
+ $status = "disabled";
+ }
+
+ # Modify the status of the existing entry.
+ $ignored{$id} = ["$ignored{$id}[0]", "$ignored{$id}[1]", "$status"];
+
+ # Write the changed ignored hash to the ignored file.
+ &General::writehasharray($ignoredfile, \%ignored);
+
+ # Regenerate the ignore file.
+ &GenerateIgnoreFile();
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
+ }
+ }
+
+## Remove entry from ignore list.
+#
+} elsif ($cgiparams{'WHITELIST'} eq $Lang::tr{'remove'}) {
+ my %ignored = ();
+
+ # Read-in ignoredfile.
+ &General::readhasharray($ignoredfile, \%ignored);
+
+ # Drop entry from the hash.
+ delete($ignored{$cgiparams{'ID'}});
+
+ # Undef the given ID.
+ undef($cgiparams{'ID'});
+
+ # Write the changed ignored hash to the ignored file.
+ &General::writehasharray($ignoredfile, \%ignored);
+
+ # Regenerate the ignore file.
+ &GenerateIgnoreFile();
+
+ # Check if the IDS is running.
+ if(&IDS::ids_is_running()) {
+ # Call suricatactrl to perform a reload.
+ &IDS::call_suricatactrl("reload");
+ }
+}
+
# Check if any error has been stored.
if (-e $IDS::storederrorfile) {
# Open file to read in the stored error message.
# Ignore files which are not read-able.
next unless (-R "$IDS::rulespath/$file");
+ # Skip whitelist rules file.
+ next if( $file eq "whitelist.rules");
+
# Call subfunction to read-in rulefile and add rules to
# the idsrules hash.
&readrulesfile("$file");
# Check if the enabled_rulefiles array contains any entries.
if (@enabled_rulefiles) {
- # Loop through the array of rulefiles which should be loaded and write the to the file.
+ # Allways load the whitelist.
+ print FILE " - whitelist.rules\n";
+
+ # Loop through the array of rulefiles which should be loaded and write them to the file.
foreach my $file (@enabled_rulefiles) {
print FILE " - $file\n";
}
$idssettings{'RUN_MODE'} = 'IPS';
}
+# Read-in ignored hosts.
+&General::readhasharray("$IDS::settingsdir/ignored", \%ignored);
+
$checked{'ENABLE_IDS'}{'off'} = '';
$checked{'ENABLE_IDS'}{'on'} = '';
$checked{'ENABLE_IDS'}{$idssettings{'ENABLE_IDS'}} = "checked='checked'";
&Header::closebox();
+#
+# Whitelist / Ignorelist
+#
+&Header::openbox('100%', 'center', $Lang::tr{'guardian ignored hosts'});
+
+print <<END;
+ <table width='100%'>
+ <tr>
+ <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'ip address'}</b></td>
+ <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'remark'}</b></td>
+ <td class='base' colspan='3' bgcolor='$color{'color20'}'></td>
+ </tr>
+END
+ # Check if some hosts have been added to be ignored.
+ if (keys (%ignored)) {
+ my $col = "";
+
+ # Loop through all entries of the hash.
+ while( (my $key) = each %ignored) {
+ # Assign data array positions to some nice variable names.
+ my $address = $ignored{$key}[0];
+ my $remark = $ignored{$key}[1];
+ my $status = $ignored{$key}[2];
+
+ # Check if the key (id) number is even or not.
+ if ($cgiparams{'ID'} eq $key) {
+ $col="bgcolor='${Header::colouryellow}'";
+ } elsif ($key % 2) {
+ $col="bgcolor='$color{'color22'}'";
+ } else {
+ $col="bgcolor='$color{'color20'}'";
+ }
+
+ # Choose icon for the checkbox.
+ my $gif;
+ my $gdesc;
+
+ # Check if the status is enabled and select the correct image and description.
+ if ($status eq 'enabled' ) {
+ $gif = 'on.gif';
+ $gdesc = $Lang::tr{'click to disable'};
+ } else {
+ $gif = 'off.gif';
+ $gdesc = $Lang::tr{'click to enable'};
+ }
+
+print <<END;
+ <tr>
+ <td width='20%' class='base' $col>$address</td>
+ <td width='65%' class='base' $col>$remark</td>
+
+ <td align='center' $col>
+ <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='hidden' name='WHITELIST' value='$Lang::tr{'toggle enable disable'}' />
+ <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' alt='$gdesc' title='$gdesc' />
+ <input type='hidden' name='ID' value='$key' />
+ </form>
+ </td>
+
+ <td align='center' $col>
+ <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='hidden' name='WHITELIST' value='$Lang::tr{'edit'}' />
+ <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' alt='$Lang::tr{'edit'}' title='$Lang::tr{'edit'}' />
+ <input type='hidden' name='ID' value='$key' />
+ </form>
+ </td>
+
+ <td align='center' $col>
+ <form method='post' name='$key' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}'>
+ <input type='hidden' name='ID' value='$key'>
+ <input type='hidden' name='WHITELIST' value='$Lang::tr{'remove'}'>
+ </form>
+ </td>
+ </tr>
+END
+ }
+ } else {
+ # Print notice that currently no hosts are ignored.
+ print "<tr>\n";
+ print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n";
+ print "</tr>\n";
+ }
+
+ print "</table>\n";
+
+ # Section to add new elements or edit existing ones.
+print <<END;
+ <br>
+ <hr>
+ <br>
+
+ <div align='center'>
+ <table width='100%'>
+END
+
+ # Assign correct headline and button text.
+ my $buttontext;
+ my $entry_address;
+ my $entry_remark;
+
+ # Check if an ID (key) has been given, in this case an existing entry should be edited.
+ if ($cgiparams{'ID'} ne '') {
+ $buttontext = $Lang::tr{'update'};
+ print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'update'}</b></td></tr>\n";
+
+ # Grab address and remark for the given key.
+ $entry_address = $ignored{$cgiparams{'ID'}}[0];
+ $entry_remark = $ignored{$cgiparams{'ID'}}[1];
+ } else {
+ $buttontext = $Lang::tr{'add'};
+ print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'dnsforward add a new entry'}</b></td></tr>\n";
+ }
+
+print <<END;
+ <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='hidden' name='ID' value='$cgiparams{'ID'}'>
+ <tr>
+ <td width='30%'>$Lang::tr{'ip address'}: </td>
+ <td width='50%'><input type='text' name='IGNORE_ENTRY_ADDRESS' value='$entry_address' size='24' /></td>
+
+ <td width='30%'>$Lang::tr{'remark'}: </td>
+ <td wicth='50%'><input type='text' name=IGNORE_ENTRY_REMARK value='$entry_remark' size='24' /></td>
+ <td align='center' width='20%'><input type='submit' name='WHITELIST' value='$buttontext' /></td>
+ </tr>
+ </form>
+ </table>
+ </div>
+END
+
+&Header::closebox();
+
# Only show the section for configuring the ruleset if one is present.
if (%idsrules) {
&Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
}
}
}
- }
+ }
}
#
}
+#
+## Function to generate the rules file with whitelisted addresses.
+#
+sub GenerateIgnoreFile() {
+ my %ignored = ();
+
+ # SID range 1000000-1999999 Reserved for Local Use
+ # Put your custom rules in this range to avoid conflicts
+ my $sid = 1500000;
+
+ # Read-in ignoredfile.
+ &General::readhasharray($ignoredfile, \%ignored);
+
+ # Open ignorefile for writing.
+ open(FILE, ">$whitelistfile") or die "Could not write to $whitelistfile. $!\n";
+
+ # Config file header.
+ print FILE "# Autogenerated file.\n";
+ print FILE "# All user modifications will be overwritten.\n\n";
+
+ # Add all user defined addresses to the whitelist.
+ #
+ # Check if the hash contains any elements.
+ if (keys (%ignored)) {
+ # Loop through the entire hash and write the host/network
+ # and remark to the ignore file.
+ while ( (my $key) = each %ignored) {
+ my $address = $ignored{$key}[0];
+ my $remark = $ignored{$key}[1];
+ my $status = $ignored{$key}[2];
+
+ # Check if the status of the entry is "enabled".
+ if ($status eq "enabled") {
+ # Check if the address/network is valid.
+ if ((&General::validip($address)) || (&General::validipandmask($address))) {
+ # Write rule line to the file to pass any traffic from this IP
+ print FILE "pass ip $address any -> any any (msg:\"pass all traffic from/to $address\"\; sid:$sid\;)\n";
+
+ # Increment sid.
+ $sid++;
+ }
+ }
+ }
+ }
+
+ close(FILE);
+}
+
#
## Function to read-in the given enabled or disables sids file.
#
projects / people / stevee / ipfire-2.x.git / commitdiff
