detect-http-header-common.h

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/* Copyright (C) 2007-2017 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 Victor Julien <victor@inliniac.net>
 */
 
#ifndef SURICATA_DETECT_HTTP_HEADER_COMMON_H
#define SURICATA_DETECT_HTTP_HEADER_COMMON_H
 
typedef struct HttpHeaderBuffer_ {
    uint8_t *buffer;
    uint32_t size;      /**< buffer size */
    uint32_t len;       /**< part of buffer in use */
} HttpHeaderBuffer;
 
typedef struct HttpHeaderThreadConfig_ {
    uint16_t size_step;
} HttpHeaderThreadDataConfig;
 
typedef struct HttpHeaderThreadData_ {
    HttpHeaderBuffer buffer;    /**< array of buffers */
    uint16_t size_step;         /**< increase size of HttpHeaderBuffer::buffer with this */
} HttpHeaderThreadData;
 
void *HttpHeaderThreadDataInit(void *data);
void HttpHeaderThreadDataFree(void *data);
 
HttpHeaderBuffer *HttpHeaderGetBufferSpace(DetectEngineThreadCtx *det_ctx, Flow *f, uint8_t flags,
        const int keyword_id, HttpHeaderThreadData **ret_hdr_td);
 
int HttpHeaderExpandBuffer(HttpHeaderThreadData *td, HttpHeaderBuffer *buf, size_t size);
 
#endif /* SURICATA_DETECT_HTTP_HEADER_COMMON_H */