Initial commit of Hyperscan

src/hwlm/hwlm_internal.h

@@ -0,0 +1,62 @@
+/*
+ * 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 Hamster Wheel Literal Matcher: data structures.
+ */
+
+#ifndef HWLM_INTERNAL_H
+#define HWLM_INTERNAL_H
+
+#include "hwlm.h"
+#include "ue2common.h"
+#include "nfa/accel.h"
+
+/** \brief Underlying engine is FDR. */
+#define HWLM_ENGINE_FDR     12
+
+/** \brief Underlying engine is Noodle. */
+#define HWLM_ENGINE_NOOD    16
+
+/** \brief Main Hamster Wheel Literal Matcher header. Followed by
+ * engine-specific structure. */
+struct HWLM {
+    u8 type; /**< HWLM_ENGINE_NOOD or HWLM_ENGINE_FDR */
+    hwlm_group_t accel1_groups; /**< accelerable groups. */
+    union AccelAux accel1; /**< used if group mask is subset of accel1_groups */
+    union AccelAux accel0; /**< fallback accel scheme */
+};
+
+/** \brief Fetch a const pointer to the underlying engine. */
+#define HWLM_C_DATA(p) ((const void *)((const char *)(p)                  \
+                                       + ROUNDUP_CL(sizeof(struct HWLM))))
+
+/** \brief Fetch a pointer to the underlying engine. */
+#define HWLM_DATA(p) ((void *)((char *)(p) + ROUNDUP_CL(sizeof(struct HWLM))))
+
+#endif