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diff --git a/framework/src/suricata/src/detect-engine-sigorder.h b/framework/src/suricata/src/detect-engine-sigorder.h
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+/* Copyright (C) 2007-2010 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Anoop Saldanha <anoopsaldanha@gmail.com>
+ */
+
+#ifndef __DETECT_ENGINE_SIGORDER_H__
+#define __DETECT_ENGINE_SIGORDER_H__
+
+/**
+ * \brief Different kinds of helper data that can be used by the signature
+ *        ordering module.  Used by the "user" field in SCSigSignatureWrapper
+ */
+typedef enum{
+    SC_RADIX_USER_DATA_FLOWBITS,
+    SC_RADIX_USER_DATA_FLOWVAR,
+    SC_RADIX_USER_DATA_PKTVAR,
+    SC_RADIX_USER_DATA_FLOWINT,
+    SC_RADIX_USER_DATA_HOSTBITS,
+    SC_RADIX_USER_DATA_IPPAIRBITS,
+    SC_RADIX_USER_DATA_MAX
+} SCRadixUserDataType;
+
+/**
+ * \brief Signature wrapper used by signature ordering module while ordering
+ *        signatures
+ */
+typedef struct SCSigSignatureWrapper_ {
+    /* the wrapped signature */
+    Signature *sig;
+
+    /* used as the lower limit SCSigSignatureWrapper that is used by the next
+     * ordering function, which will order the incoming Sigwrapper after this
+     * (min) wrapper */
+    struct SCSigSignatureWrapper_ *min;
+    /* used as the upper limit SCSigSignatureWrapper that is used by the next
+     * ordering function, which will order the incoming Sigwrapper below this
+     * (max) wrapper */
+    struct SCSigSignatureWrapper_ *max;
+
+    /* user data that is to be associated with this sigwrapper */
+    int user[SC_RADIX_USER_DATA_MAX];
+
+    struct SCSigSignatureWrapper_ *next;
+    struct SCSigSignatureWrapper_ *prev;
+} SCSigSignatureWrapper;
+
+/**
+ * \brief Structure holding the signature ordering function used by the
+ *        signature ordering module
+ */
+typedef struct SCSigOrderFunc_ {
+    /* Pointer to the Signature Ordering function */
+    int (*SWCompare)(SCSigSignatureWrapper *sw1, SCSigSignatureWrapper *sw2);
+
+    struct SCSigOrderFunc_ *next;
+} SCSigOrderFunc;
+
+void SCSigOrderSignatures(DetectEngineCtx *);
+void SCSigRegisterSignatureOrderingFuncs(DetectEngineCtx *);
+void SCSigRegisterSignatureOrderingTests(void);
+void SCSigSignatureOrderingModuleCleanup(DetectEngineCtx *);
+
+#endif /* __DETECT_ENGINE_SIGORDER_H__ */