1 files changed, 89 insertions, 0 deletions
diff --git a/security/ossec-hids-local-config/scripts/rules.sh b/security/ossec-hids-local-config/scripts/rules.sh
new file mode 100755
index 0000000..65e28e2
--- /dev/null
+++ b/security/ossec-hids-local-config/scripts/rules.sh
@@ -0,0 +1,89 @@
+#!/bin/sh
+
+# Script generates entries for template-rules-default.xml.in.
+# Do not use it directly. Use the following command instead:
+#
+# make MAINTAINER_MODE=yes rules
+
+rules_template=$1
+src_dir=$2
+
+skip_files="policy_rules.xml local_rules.xml"
+append_files="local_rules.xml"
+
+rules=""
+for file in `find "${src_dir}/etc/rules" -depth 1 -name "*.xml"`; do
+    file_name="${file##*/}"
+    skip_file=""
+    for e in ${skip_files}; do
+        if [ "${e}" == "${file_name}" ]; then
+            skip_file="${e}"
+            break
+        fi
+    done
+    if [ -z "${skip_file}" ]; then
+        rule_ids=`sed -Ene 's|^.*<rule[[:space:]]+id="([0-9]+)".*$|\1|p' "${file}"`
+        if [ -n "${rule_ids}" ]; then
+            min_rule_id=`echo "${rule_ids}" | sort -n | head -n 1`
+            ref_rule_ids=`sed -Ene 's|^.*<if_sid>([0-9,]+)</if_sid>.*$|\1|p' "${file}" | tr ',' '\n'`
+            for ref_rule_id in ${ref_rule_ids}; do
+                found_rule_id=""
+                for rule_id in ${rule_ids}; do
+                    if [ "${ref_rule_id}" = "${rule_id}" ]; then
+                        found_rule_id="${rule_id}"
+                        break
+                    fi
+                done
+                if [ -z "${found_rule_id}" ]; then
+                    # The referenced rule id is not present in this file so it must come from another
+                    if [ ${ref_rule_id} -gt ${min_rule_id} ]; then
+                        # Ordering by referenced rule id doesn't need to give proper results, but let's hope it does
+                        min_rule_id=$((ref_rule_id + 1))
+                    fi
+                fi
+            done
+
+            rules="${rules}${min_rule_id} ${file_name}
+"
+        fi
+    fi
+done
+
+echo -n "${rules}" | sort -n
+
+if [ -n "${rules_template}" ]; then
+    rules=`echo -n "${rules}" | sort -n | cut -d' ' -f2`
+    for file_name in ${append_files}; do
+        rules="${rules}
+${file_name}"
+    done
+
+    echo '<?xml version="1.0" encoding="UTF-8"?>
+<template_config>
+
+  <rules>' > "${rules_template}"
+
+    for rule in ${rules}; do
+        echo "    <include>${rule}</include>" >> "${rules_template}"
+    done
+
+    echo '
+    <!-- Files not included by default -->' >> "${rules_template}"
+
+    for skip_file in ${skip_files}; do
+        append_file=""
+        for e in ${append_files}; do
+            if [ "${e}" == "${skip_file}" ]; then
+                append_file="${e}"
+                break
+            fi
+        done
+        if [ -z "${append_file}" ]; then
+            echo "    <!--<include>${skip_file}</include>-->" >> "${rules_template}"
+        fi
+    done
+
+    echo '  </rules>
+
+</template_config>' >> "${rules_template}"
+fi