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author | Ashlee Young <ashlee@onosfw.com> | 2015-09-09 22:21:41 -0700 |
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committer | Ashlee Young <ashlee@onosfw.com> | 2015-09-09 22:21:41 -0700 |
commit | 8879b125d26e8db1a5633de5a9c692eb2d1c4f83 (patch) | |
tree | c7259d85a991b83dfa85ab2e339360669fc1f58e /framework/src/suricata/src/detect-byte-extract.h | |
parent | 13d05bc8458758ee39cb829098241e89616717ee (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.h | 71 |
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 new file mode 100644 index 00000000..020494da --- /dev/null +++ b/framework/src/suricata/src/detect-byte-extract.h @@ -0,0 +1,71 @@ +/* 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__ */ |