my %color = ();
my %mainsettings = ();
my %netsettings = ();
+my %snortrules = ();
my %snortsettings=();
my %cgiparams=();
my %checked=();
$snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
$snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
$snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
-$snortsettings{'ACTION'} = '';
$snortsettings{'RULES'} = '';
$snortsettings{'OINKCODE'} = '';
$snortsettings{'INSTALLDATE'} = '';
&Header::getcgihash(\%cgiparams);
my $snortrulepath = "/etc/snort/rules";
-my $restartsnortrequired = 0;
-my %snortrules;
+my $snortusedrulefilesfile = "${General::swroot}/snort/snort-used-rulefiles.conf";
my $errormessage;
-my $url;
+
+# Try to determine if oinkmaster is running.
+my $oinkmaster_pid = `pidof oinkmaster.pl -x`;
+
+# If oinkmaster is running display output.
+if ($oinkmaster_pid) {
+ &working("$Lang::tr{'snort working'}");
+}
## Grab all available snort rules and store them in the snortrules hash.
#
closedir(DIR);
+# Gather used rulefiles.
+#
+# Check if the file for activated rulefiles is not empty.
+if(-f $snortusedrulefilesfile) {
+ # Open the file for used rulefile and read-in content.
+ open(FILE, $snortusedrulefilesfile) or die "Could not open $snortusedrulefilesfile. $!\n";
+
+ # Read-in content.
+ my @lines = <FILE>;
+
+ # Close file.
+ close(FILE);
+
+ # Loop through the array.
+ foreach my $line (@lines) {
+ # Remove newlines.
+ chomp($line);
+
+ # Skip comments.
+ next if ($line =~ /\#/);
+
+ # Skip blank lines.
+ next if ($line =~ /^\s*$/);
+
+ # Gather rule sid and message from the ruleline.
+ if ($line =~ /.*include \$RULE_PATH\/(.*)/) {
+ my $rulefile = $1;
+
+ # Add the rulefile to the %snortrules hash.
+ $snortrules{$rulefile}{'Rulefile'}{'State'} = "on";
+ }
+ }
+}
+
# Save ruleset.
if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
my $enabled_sids_file = "${General::swroot}/snort/oinkmaster-enabled-sids.conf";
# Arrays to store sid which should be added to the corresponding files.
my @enabled_sids;
my @disabled_sids;
+ my @enabled_rulefiles;
# Loop through the hash of snortrules.
foreach my $rulefile(keys %snortrules) {
+ # Check if the rulefile is enabled.
+ if ($cgiparams{$rulefile} eq "on") {
+ # Add rulefile to the array of enabled rulefiles.
+ push(@enabled_rulefiles, $rulefile);
+
+ # Drop item from cgiparams hash.
+ delete $cgiparams{$rulefile};
+ }
+ }
+
+ # Loop through the hash of snortrules.
+ foreach my $rulefile (keys %snortrules) {
# Loop through the single rules of the rulefile.
foreach my $sid (keys %{$snortrules{$rulefile}}) {
+ # Skip the current sid if it is not numeric.
+ next unless ($sid =~ /\d+/ );
+
# Check if there exists a key in the cgiparams hash for this sid.
if (exists($cgiparams{$sid})) {
# Look if the rule is disabled.
push(@enabled_sids, $sid);
# Drop item from cgiparams hash.
- delete $cgiparams{$sid};
+ delete $cgiparams{$rulefile}{$sid};
}
}
} else {
push(@disabled_sids, $sid);
# Drop item from cgiparams hash.
- delete $cgiparams{$sid};
+ delete $cgiparams{$rulefile}{$sid};
}
}
}
}
- # Check if the enabled_sids array contains any sid's.
- if (@enabled_sids) {
- # Open enabled sid's file for writing.
- open(FILE, ">$enabled_sids_file") or die "Could not write to $enabled_sids_file. $!\n";
+ # Open enabled sid's file for writing.
+ open(FILE, ">$enabled_sids_file") or die "Could not write to $enabled_sids_file. $!\n";
- # Write header to file.
- print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+ # Write header to file.
+ print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+ # Check if the enabled_sids array contains any sid's.
+ if (@enabled_sids) {
# Loop through the array of enabled sids and write them to the file.
foreach my $sid (@enabled_sids) {
- print FILE "enable_sid $sid\n";
+ print FILE "enablesid $sid\n";
}
-
- # Close file after writing.
- close(FILE);
}
+ # Close file after writing.
+ close(FILE);
+
+ # Open disabled sid's file for writing.
+ open(FILE, ">$disabled_sids_file") or die "Could not write to $disabled_sids_file. $!\n";
+
+ # Write header to file.
+ print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+
# Check if the enabled_sids array contains any sid's.
- if (@disabled_sids) {
- # Open disabled sid's file for writing.
- open(FILE, ">$disabled_sids_file") or die "Could not write to $disabled_sids_file. $!\n";
+ if (@disabled_sids) {
+ # Loop through the array of disabled sids and write them to the file.
+ foreach my $sid (@disabled_sids) {
+ print FILE "disablesid $sid\n";
+ }
+ }
- # Write header to file.
- print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+ # Close file after writing.
+ close(FILE);
- # Loop through the array of disabled sids and write them to the file.
- foreach my $sid (@disabled_sids) {
- print FILE "disable_sid $sid\n";
- }
+ # Open file for used rulefiles.
+ open (FILE, ">$snortusedrulefilesfile") or die "Could not write to $snortusedrulefilesfile. $!\n";
- # Close file after writing.
- close(FILE);
- }
-}
+ # Write header to file.
+ print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
-if ($snortsettings{'OINKCODE'} ne "") {
- $errormessage = $Lang::tr{'invalid input for oink code'} unless ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/);
-}
+ # 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.
+ foreach my $file (@enabled_rulefiles) {
+ print FILE "include \$RULE_PATH/$file\n";
+ }
+ }
-if (!$errormessage) {
- if ($snortsettings{'RULES'} eq 'subscripted') {
- $url=" https://www.snort.org/rules/snortrules-snapshot-29111.tar.gz?oinkcode=$snortsettings{'OINKCODE'}";
- } elsif ($snortsettings{'RULES'} eq 'registered') {
- $url=" https://www.snort.org/rules/snortrules-snapshot-29111.tar.gz?oinkcode=$snortsettings{'OINKCODE'}";
- } elsif ($snortsettings{'RULES'} eq 'community') {
- $url=" https://www.snort.org/rules/community";
- } else {
- $url="http://rules.emergingthreats.net/open/snort-2.9.0/emerging.rules.tar.gz";
+ # Close file after writing.
+ close(FILE);
+
+ # Call oinkmaster to alter the ruleset.
+ &oinkmaster();
+
+# Download new ruleset.
+} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'download new ruleset'}) {
+ # Local var.
+ my $return;
+
+ # Call diskfree to gather the free disk space of /var.
+ my @df = `/bin/df -B M /var`;
+
+ # Loop through the output.
+ foreach my $line (@df) {
+ # Ignore header line.
+ next if $line =~ m/^Filesystem/;
+
+ # Search for a line with the device information.
+ if ($line =~ m/dev/ ) {
+ # Split the line into single pieces.
+ my @values = split(' ', $line);
+ my ($filesystem, $blocks, $used, $available, $used_perenctage, $mounted_on) = @values;
+
+ # Check if the available disk space is more than 300MB.
+ if ($available < 300) {
+ # If there is not enough space, print out an error message.
+ $errormessage = "$Lang::tr{'not enough disk space'} < 300MB, /var $1MB";
+ } else {
+ # Call subfunction to download the ruleset.
+ &downloadrulesfile();
+
+ # Sleep for 3 seconds.
+ sleep(3);
+
+ # Gather return of the external wget.
+ $return = `cat /var/tmp/log 2>/dev/null`;
+ }
+
+ # Check if there was an error.
+ if ($return =~ "ERROR") {
+ # Store error message for display.
+ $errormessage = "<br /><pre>".$return."</pre>";
+ } else {
+ # Remove logfile.
+ unlink("/var/tmp/log");
+
+ # Call subfunction to launch oinkmaster.
+ &oinkmaster();
+
+ # Sleep for 2 seconds.
+ sleep(2);
+ }
+ }
+ }
+# Save snort settings.
+} elsif ($cgiparams{'SNORT'} eq $Lang::tr{'save'}) {
+ # Prevent form name from been stored in conf file.
+ delete $cgiparams{'SNORT'};
+
+ # Check if an oinkcode has been provided.
+ if ($cgiparams{'OINKCODE'}) {
+ # Check if the oinkcode contains unallowed chars.
+ unless ($cgiparams{'OINKCODE'} =~ /^[a-z0-9]+$/) {
+ $errormessage = $Lang::tr{'invalid input for oink code'};
+ }
}
- if ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "snort" ) {
- &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
- if ($snortsettings{'ENABLE_SNORT'} eq 'on')
- {
+ # Go on if there are no error messages.
+ if (!$errormessage) {
+ # Store settings into settings file.
+ &General::writehash("${General::swroot}/snort/settings", \%cgiparams);
+
+ # Create/Remove control files for snort.
+ if ($snortsettings{'ENABLE_SNORT'} eq 'on') {
system ('/usr/bin/touch', "${General::swroot}/snort/enable");
} else {
unlink "${General::swroot}/snort/enable";
}
- if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
- {
+
+ if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on') {
system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
} else {
unlink "${General::swroot}/snort/enable_green";
}
- if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
- {
+
+ if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on') {
system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
} else {
unlink "${General::swroot}/snort/enable_blue";
}
- if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
- {
+
+ if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on') {
system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
} else {
unlink "${General::swroot}/snort/enable_orange";
}
- if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on')
- {
+
+ if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on') {
system ('/usr/bin/touch', "${General::swroot}/snort/enable_preprocessor_http_inspect");
} else {
unlink "${General::swroot}/snort/enable_preprocessor_http_inspect";
}
+ # Call snortctrl to restart snort
system('/usr/local/bin/snortctrl restart >/dev/null');
}
-
- # INSTALLMD5 is not in the form, so not retrieved by getcgihash
- &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
-
- if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) {
- my @df = `/bin/df -B M /var`;
- foreach my $line (@df) {
- next if $line =~ m/^Filesystem/;
- my $return;
-
- if ($line =~ m/dev/ ) {
- $line =~ m/^.* (\d+)M.*$/;
- my @temp = split(/ +/,$line);
- if ($1<300) {
- $errormessage = "$Lang::tr{'not enough disk space'} < 300MB, /var $1MB";
- } else {
- if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) {
- &downloadrulesfile();
- sleep(3);
- $return = `cat /var/tmp/log 2>/dev/null`;
-
- }
-
- if ($return =~ "ERROR") {
- $errormessage = "<br /><pre>".$return."</pre>";
- } else {
- system("/usr/local/bin/oinkmaster.pl -v -s -u file:///var/tmp/snortrules.tar.gz -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules >>/var/tmp/log 2>&1 &");
- sleep(2);
- }
- }
- }
- }
- }
}
+# Read-in snortsettings
+&General::readhash("${General::swroot}/snort/settings", \%snortsettings);
+
$checked{'ENABLE_SNORT'}{'off'} = '';
$checked{'ENABLE_SNORT'}{'on'} = '';
$checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
&Header::openbigbox('100%', 'left', '', $errormessage);
-###############
-# DEBUG DEBUG
-# &Header::openbox('100%', 'left', 'DEBUG');
-# my $debugCount = 0;
-# foreach my $line (sort keys %snortsettings) {
-# print "$line = $snortsettings{$line}<br />\n";
-# $debugCount++;
-# }
-# print " Count: $debugCount\n";
-# &Header::closebox();
-# DEBUG DEBUG
-###############
-
if ($errormessage) {
&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
print "<class name='base'>$errormessage\n";
&Header::closebox();
}
-my $return = `pidof oinkmaster.pl -x`;
-chomp($return);
-if ($return) {
- &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='10;'>" );
- print <<END;
- <table>
- <tr><td>
- <img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' />
- <td>
- $Lang::tr{'snort working'}
- <tr><td colspan='2' align='center'>
- <form method='post' action='$ENV{'SCRIPT_NAME'}'>
- <input type='image' alt='$Lang::tr{'reload'}' title='$Lang::tr{'reload'}' src='/images/view-refresh.png' />
- </form>
- <tr><td colspan='2' align='left'><pre>
-END
- my @output = `tail -20 /var/tmp/log`;
- foreach (@output) {
- print "$_";
- }
- print <<END;
- </pre>
- </table>
-END
- &Header::closebox();
- &Header::closebigbox();
- &Header::closepage();
- exit;
- refreshpage();
-}
-
&Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'});
print <<END
<form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
<td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
</tr>
<tr>
- <td width='30%' align='left'><br><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
+ <td width='30%' align='left'><br><input type='submit' name='RULESET' value='$Lang::tr{'download new ruleset'}' />
END
;
if ( -e "/var/tmp/snortrules.tar.gz"){
<br><br>
<table width='100%'>
<tr>
- <td align='right'><input type='hidden' name='ACTION2' value='snort' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
+ <td align='right'><input type='submit' name='SNORT' value='$Lang::tr{'save'}' /></td>
</tr>
</table>
</form>
my $rulechecked = '';
# Check if rule file is enabled
- if ($snortrules{$rulefile}{"State"} eq 'On') {
+ if ($snortrules{$rulefile}{'Rulefile'}{'State'} eq 'on') {
$rulechecked = 'CHECKED';
}
# Table and rows for the rule files.
print"<tr>\n";
print"<td class='base' width='5%'>\n";
- print"<input type='checkbox' name='SNORT_RULE_$rulefile' $rulechecked>\n";
+ print"<input type='checkbox' name='$rulefile' $rulechecked>\n";
print"</td>\n";
print"<td class='base' width='90%'><b>$rulefile</b></td>\n";
print"<td class='base' width='5%' align='right'>\n";
# Local vars
my $ruledefchecked = '';
+ # Skip rulefile itself.
+ next if ($sid eq "Rulefile");
+
# If 2 rules have been displayed, start a new row
if (($lines % 2) == 0) {
print "</tr><tr>\n";
END
;
&Header::closebox();
-
&Header::closebigbox();
&Header::closepage();
-sub refreshpage {
- &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='1;'>" );
- print "<center><img src='/images/clock.gif' alt='' /><br/><font color='red'>$Lang::tr{'pagerefresh'}</font></center>";
- &Header::closebox();
+sub working ($) {
+ my $message = $_[0];
+
+ &Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
+ &Header::openbigbox('100%', 'left', '', $errormessage);
+ &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='1'>" );
+ print <<END;
+ <table>
+ <tr>
+ <td><img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' /></td>
+ <td>$message</td>
+ </tr>
+ <tr>
+ <td colspan='2' align='center'>
+ <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+ <input type='image' alt='$Lang::tr{'reload'}' title='$Lang::tr{'reload'}' src='/images/view-refresh.png' />
+ </form>
+ </tr>
+ </table>
+END
+ &Header::closebox();
+ &Header::closebigbox();
+ &Header::closepage();
+ exit;
}
sub downloadrulesfile {
return undef;
}
+ # Gather snort settings.
+ my %snortsettings = ();
+ &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
+
+ # Get all available ruleset locations.
+ my %urls=();
+ &General::readhash("${General::swroot}/snort/ruleset-sources.list", \%urls);
+
+ # Grab the right url based on the configured vendor.
+ my $url = $urls{$snortsettings{'RULES'}};
+
+ # Check and pass oinkcode if the vendor requires one.
+ $url =~ s/\<oinkcode\>/$snortsettings{'OINKCODE'}/g;
+
+ # Abort if no url could be determined for the vendor.
+ unless($url) {
+ $errormessage = $Lang::tr{'could not download latest updates'};
+ return undef;
+ }
+
my %proxysettings=();
&General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
}
}
+sub oinkmaster () {
+ # Call oinkmaster to generate ruleset.
+ system("/usr/local/bin/oinkmaster.pl -v -s -u file:///var/tmp/snortrules.tar.gz -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules >>/var/tmp/log 2>&1 &");
+}
+
sub readrulesfile ($) {
my $rulefile = shift;
projects / ipfire-2.x.git / blobdiff