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authorrobiscool <robrob2626@yahoo.com>2011-08-06 14:30:46 -0700
committerrobiscool <robrob2626@yahoo.com>2011-08-06 14:30:46 -0700
commit2df95b8d0bdca215ecd73e7e84ec2f4210faf974 (patch)
treec283f2ab0dc81a69e146e155b87d10a7eca890be /config/snort
parentdb2f332b68ddd411a41dcd41c3057135bbe05203 (diff)
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orionids-dev, add perl snortsam create code and install paths
Diffstat (limited to 'config/snort')
-rw-r--r--config/snort/bin/oinkmaster_contrib/make_snortsam_map.pl265
1 files changed, 265 insertions, 0 deletions
diff --git a/config/snort/bin/oinkmaster_contrib/make_snortsam_map.pl b/config/snort/bin/oinkmaster_contrib/make_snortsam_map.pl
new file mode 100644
index 00000000..42ce2b3b
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+++ b/config/snort/bin/oinkmaster_contrib/make_snortsam_map.pl
@@ -0,0 +1,265 @@
+#!/usr/bin/perl -w
+
+# $Id: makesidex.pl,v 1.11 2005/12/31 13:42:46 andreas_o Exp $ #
+
+# Copyright (c) 2004-2006 Andreas Östling <andreaso@it.su.se>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or
+# without modification, are permitted provided that the following
+# conditions are met:
+#
+# 1. Redistributions of source code must retain the above
+# copyright notice, this list of conditions and the following
+# disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials
+# provided with the distribution.
+#
+# 3. Neither the name of the author nor the names of its
+# contributors may be used to endorse or promote products
+# derived from this software without specific prior written
+# permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Modified by Robert Zelaya for the snort package.
+# gets enabled sids and msgs for all rules in a dir
+
+
+
+use strict;
+
+sub get_next_entry($ $ $ $ $ $);
+sub parse_singleline_rule($ $ $);
+
+
+# Regexp to match the start of a multi-line rule.
+# %ACTIONS% will be replaced with content of $config{actions} later.
+my $MULTILINE_RULE_REGEXP = '^\s*#*\s*(?:%ACTIONS%)'.
+ '\s.*\\\\\s*\n$'; # ';
+
+# Regexp to match a single-line rule.
+my $SINGLELINE_RULE_REGEXP = '^\s*#*\s*(?:%ACTIONS%)'.
+ '\s.+;\s*\)\s*$'; # ';
+
+my $USAGE = << "RTFM";
+
+Parse *.rules in one or more directories and look for all rules that are
+disabled (i.e. begin with "#") and print "disablesid <sid> # <msg>" to
+standard output for all those rules. This output can be redirected to a
+file, which will be understood by Oinkmaster.
+
+Usage: $0 <rulesdir> [rulesdir2, ...]
+
+RTFM
+
+my $verbose = 1;
+
+my (%disabled, %config);
+
+my @rulesdirs = @ARGV;
+
+die($USAGE) unless ($#rulesdirs > -1);
+
+$config{rule_actions} = "alert|drop|log|pass|reject|sdrop|activate|dynamic";
+
+$SINGLELINE_RULE_REGEXP =~ s/%ACTIONS%/$config{rule_actions}/;
+$MULTILINE_RULE_REGEXP =~ s/%ACTIONS%/$config{rule_actions}/;
+
+foreach my $rulesdir (@rulesdirs) {
+ opendir(RULESDIR, "$rulesdir") or die("could not open \"$rulesdir\": $!\n");
+
+ while (my $file = readdir(RULESDIR)) {
+ next unless ($file =~ /\.rules$/);
+
+ open(FILE, "$rulesdir/$file") or die("could not open \"$rulesdir/$file\": $!\n");
+ my @file = <FILE>;
+ close(FILE);
+
+ my ($single, $multi, $nonrule, $msg, $sid);
+
+ while (get_next_entry(\@file, \$single, \$multi, \$nonrule, \$msg, \$sid)) {
+ $single = $multi if (defined($multi));
+ $disabled{$sid} = $msg
+ if (defined($single) && $single =~ /^alert/);
+ }
+ }
+}
+
+# Print results.
+foreach my $sid (sort { $a <=> $b } keys(%disabled)) {
+ printf("%-25s # %s\n", "$sid", $disabled{$sid});
+}
+
+
+
+# Same as in oinkmaster.pl.
+sub get_next_entry($ $ $ $ $ $)
+{
+ my $arr_ref = shift;
+ my $single_ref = shift;
+ my $multi_ref = shift;
+ my $nonrule_ref = shift;
+ my $msg_ref = shift;
+ my $sid_ref = shift;
+
+ undef($$single_ref);
+ undef($$multi_ref);
+ undef($$nonrule_ref);
+ undef($$msg_ref);
+ undef($$sid_ref);
+
+ my $line = shift(@$arr_ref) || return(0);
+ my $disabled = 0;
+ my $broken = 0;
+
+ # Possible beginning of multi-line rule?
+ if ($line =~ /$MULTILINE_RULE_REGEXP/oi) {
+ $$single_ref = $line;
+ $$multi_ref = $line;
+
+ $disabled = 1 if ($line =~ /^alert/);
+
+ # Keep on reading as long as line ends with "\".
+ while (!$broken && $line =~ /\\\s*\n$/) {
+
+ # Remove trailing "\" and newline for single-line version.
+ $$single_ref =~ s/\\\s*\n//;
+
+ # If there are no more lines, this can not be a valid multi-line rule.
+ if (!($line = shift(@$arr_ref))) {
+
+ warn("\nWARNING: got EOF while parsing multi-line rule: $$multi_ref\n")
+ if ($config{verbose});
+
+ @_ = split(/\n/, $$multi_ref);
+
+ undef($$multi_ref);
+ undef($$single_ref);
+
+ # First line of broken multi-line rule will be returned as a non-rule line.
+ $$nonrule_ref = shift(@_) . "\n";
+ $$nonrule_ref =~ s/\s*\n$/\n/; # remove trailing whitespaces
+
+ # The rest is put back to the array again.
+ foreach $_ (reverse((@_))) {
+ unshift(@$arr_ref, "$_\n");
+ }
+
+ return (1); # return non-rule
+ }
+
+ # Multi-line continuation.
+ $$multi_ref .= $line;
+
+ # If there are non-comment lines in the middle of a disabled rule,
+ # mark the rule as broken to return as non-rule lines.
+ if ($line !~ /^alert/ && $disabled) {
+ $broken = 1;
+ } elsif ($line =~ /^alert/ && !$disabled) {
+ # comment line (with trailing slash) in the middle of an active rule - ignore it
+ } else {
+ $line =~ s/^\s*alert*\s*/alert/; # remove leading # in single-line version
+ $$single_ref .= $line;
+ }
+
+ } # while line ends with "\"
+
+ # Single-line version should now be a valid rule.
+ # If not, it wasn't a valid multi-line rule after all.
+ if (!$broken && parse_singleline_rule($$single_ref, $msg_ref, $sid_ref)) {
+
+ $$single_ref =~ s/^\s*//; # remove leading whitespaces
+ $$single_ref =~ s/^alert+\s*/#/; # remove whitespaces next to leading #
+ $$single_ref =~ s/\s*\n$/\n/; # remove trailing whitespaces
+
+ $$multi_ref =~ s/^\s*//;
+ $$multi_ref =~ s/\s*\n$/\n/;
+ $$multi_ref =~ s/^alert+\s*/alert/;
+
+ return (1); # return multi
+ } else {
+ warn("\nWARNING: invalid multi-line rule: $$single_ref\n")
+ if ($config{verbose} && $$multi_ref !~ /^alert/);
+
+ @_ = split(/\n/, $$multi_ref);
+
+ undef($$multi_ref);
+ undef($$single_ref);
+
+ # First line of broken multi-line rule will be returned as a non-rule line.
+ $$nonrule_ref = shift(@_) . "\n";
+ $$nonrule_ref =~ s/\s*\n$/\n/; # remove trailing whitespaces
+
+ # The rest is put back to the array again.
+ foreach $_ (reverse((@_))) {
+ unshift(@$arr_ref, "$_\n");
+ }
+
+ return (1); # return non-rule
+ }
+ } elsif (parse_singleline_rule($line, $msg_ref, $sid_ref)) {
+ $$single_ref = $line;
+ $$single_ref =~ s/^\s*//;
+ $$single_ref =~ s/^alert+\s*/alert/;
+ $$single_ref =~ s/\s*\n$/\n/;
+
+ return (1); # return single
+ } else { # non-rule line
+
+ # Do extra check and warn if it *might* be a rule anyway,
+ # but that we just couldn't parse for some reason.
+ warn("\nWARNING: line may be a rule but it could not be parsed ".
+ "(missing sid or msg?): $line\n")
+ if ($config{verbose} && $line =~ /^\s*alert .+msg\s*:\s*".+"\s*;/);
+
+ $$nonrule_ref = $line;
+ $$nonrule_ref =~ s/\s*\n$/\n/;
+
+ return (1); # return non-rule
+ }
+}
+
+
+
+# Same as in oinkmaster.pl.
+sub parse_singleline_rule($ $ $)
+{
+ my $line = shift;
+ my $msg_ref = shift;
+ my $sid_ref = shift;
+
+ if ($line =~ /$SINGLELINE_RULE_REGEXP/oi) {
+
+ if ($line =~ /\bmsg\s*:\s*"(.+?)"\s*;/i) {
+ $$msg_ref = $1;
+ } else {
+ return (0);
+ }
+
+ if ($line =~ /\bsid\s*:\s*(\d+)\s*;/i) {
+ $$sid_ref = $1;
+ } else {
+ return (0);
+ }
+
+ return (1);
+ }
+
+ return (0);
+}