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authorAshlee Young <ashlee@onosfw.com>2015-09-09 22:21:41 -0700
committerAshlee Young <ashlee@onosfw.com>2015-09-09 22:21:41 -0700
commit8879b125d26e8db1a5633de5a9c692eb2d1c4f83 (patch)
treec7259d85a991b83dfa85ab2e339360669fc1f58e /framework/src/suricata/src/detect-byte-extract.h
parent13d05bc8458758ee39cb829098241e89616717ee (diff)
suricata checkin based on commit id a4bce14770beee46a537eda3c3f6e8e8565d5d0a
Change-Id: I9a214fa0ee95e58fc640e50bd604dac7f42db48f
Diffstat (limited to 'framework/src/suricata/src/detect-byte-extract.h')
-rw-r--r--framework/src/suricata/src/detect-byte-extract.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/framework/src/suricata/src/detect-byte-extract.h b/framework/src/suricata/src/detect-byte-extract.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_BYTEEXTRACT_H__
+#define __DETECT_BYTEEXTRACT_H__
+
+/* flags */
+#define DETECT_BYTE_EXTRACT_FLAG_RELATIVE 0x01
+#define DETECT_BYTE_EXTRACT_FLAG_MULTIPLIER 0x02
+#define DETECT_BYTE_EXTRACT_FLAG_STRING 0x04
+#define DETECT_BYTE_EXTRACT_FLAG_ALIGN 0x08
+#define DETECT_BYTE_EXTRACT_FLAG_ENDIAN 0x10
+
+/* endian value to be used. Would be stored in DetectByteParseData->endian */
+#define DETECT_BYTE_EXTRACT_ENDIAN_NONE 0
+#define DETECT_BYTE_EXTRACT_ENDIAN_BIG 1
+#define DETECT_BYTE_EXTRACT_ENDIAN_LITTLE 2
+#define DETECT_BYTE_EXTRACT_ENDIAN_DCE 3
+
+/**
+ * \brief Holds data related to byte_extract keyword.
+ */
+typedef struct DetectByteExtractData_ {
+ /* local id used by other keywords in the sig to reference this */
+ uint8_t local_id;
+
+ uint8_t nbytes;
+ int16_t pad;
+ int32_t offset;
+ const char *name;
+ uint8_t flags;
+ uint8_t endian;
+ uint8_t base;
+ uint8_t align_value;
+
+ uint16_t multiplier_value;
+ /* unique id used to reference this byte_extract keyword */
+ uint16_t id;
+
+} DetectByteExtractData;
+
+void DetectByteExtractRegister(void);
+int DetectByteExtractSetup(DetectEngineCtx *, Signature *, char *);
+void DetectByteExtractFree(void *);
+int DetectByteExtractMatch(ThreadVars *, DetectEngineThreadCtx *,
+ Packet *, Signature *, SigMatch *);
+SigMatch *DetectByteExtractRetrieveSMVar(const char *, Signature *);
+int DetectByteExtractDoMatch(DetectEngineThreadCtx *, SigMatch *, Signature *,
+ uint8_t *, uint16_t, uint64_t *, uint8_t);
+
+#endif /* __DETECT_BYTEEXTRACT_H__ */