Initial commit of Hyperscan

src/nfa/lbr_internal.h

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+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * 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.
+ *  * Neither the name of Intel Corporation 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.
+ */
+
+/** \file
+ * \brief Large Bounded Repeat (LBR): data structures.
+ */
+
+#ifndef LBR_INTERNAL_H
+#define LBR_INTERNAL_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "repeat_internal.h"
+
+/** \brief Common LBR header. */
+struct lbr_common {
+    u32 repeatInfoOffset;   //!< offset of RepeatInfo structure relative
+                            //   to the start of lbr_common
+    ReportID report;        //!< report to raise on match
+};
+
+struct lbr_dot {
+    struct lbr_common common;
+};
+
+struct lbr_verm {
+    struct lbr_common common;
+    char c; //!< escape char
+};
+
+struct lbr_shuf {
+    struct lbr_common common;
+    m128 mask_lo; //!< shufti lo mask for escape chars
+    m128 mask_hi; //!< shufti hi mask for escape chars
+};
+
+struct lbr_truf {
+    struct lbr_common common;
+    m128 mask1;
+    m128 mask2;
+};
+
+/** \brief Uncompressed ("full") state structure used by the LBR. This is
+ * stored in scratch, not in stream state. */
+struct lbr_state {
+    u64a lastEscape; //!< \brief offset of last escape seen.
+    union RepeatControl ctrl; //!< \brief repeat control block. */
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // LBR_INTERNAL_H