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/* Copyright (C) 2007-2021 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>
* \author Victor Julien <victor@inliniac.net>
*/
#ifndef __DETECT_ENGINE_CONTENT_INSPECTION_H__
#define __DETECT_ENGINE_CONTENT_INSPECTION_H__
/** indication to content engine what type of data
* we're inspecting
*/
enum {
DETECT_ENGINE_CONTENT_INSPECTION_MODE_PAYLOAD = 0, /* enables 'replace' logic */
DETECT_ENGINE_CONTENT_INSPECTION_MODE_HEADER,
DETECT_ENGINE_CONTENT_INSPECTION_MODE_STREAM,
DETECT_ENGINE_CONTENT_INSPECTION_MODE_FRAME,
DETECT_ENGINE_CONTENT_INSPECTION_MODE_STATE,
};
#define DETECT_CI_FLAGS_START BIT_U8(0) /**< unused, reserved for future use */
#define DETECT_CI_FLAGS_END BIT_U8(1) /**< indication that current buffer
* is the end of the data */
#define DETECT_CI_FLAGS_DCE_LE BIT_U8(2) /**< DCERPC record in little endian */
#define DETECT_CI_FLAGS_DCE_BE BIT_U8(3) /**< DCERPC record in big endian */
/** buffer is a single, non-streaming, buffer. Data sent to the content
* inspection function contains both start and end of the data. */
#define DETECT_CI_FLAGS_SINGLE (DETECT_CI_FLAGS_START|DETECT_CI_FLAGS_END)
uint8_t DetectEngineContentInspection(DetectEngineCtx *de_ctx, DetectEngineThreadCtx *det_ctx,
const Signature *s, const SigMatchData *smd, Packet *p, Flow *f, const uint8_t *buffer,
uint32_t buffer_len, uint32_t stream_start_offset, uint8_t flags, uint8_t inspection_mode);
void DetectEngineContentInspectionRegisterTests(void);
#endif /* __DETECT_ENGINE_CONTENT_INSPECTION_H__ */
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