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/* Copyright (C) 2007-2013 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>
* \author Pablo Rincon <pablo.rincon.crespo@gmail.com>
*/
#ifndef __FLOW_VAR_H__
#define __FLOW_VAR_H__
#include "flow.h"
#include "util-var.h"
/** Available data types for Flowvars */
#define FLOWVAR_TYPE_STR 1
#define FLOWVAR_TYPE_INT 2
/** Struct used to hold the string data type for flowvars */
typedef struct FlowVarTypeStr {
uint8_t *value;
uint16_t value_len;
} FlowVarTypeStr;
/** Struct used to hold the integer data type for flowvars */
typedef struct FlowVarTypeInt_ {
uint32_t value;
} FlowVarTypeInt;
/** Generic Flowvar Structure */
typedef struct FlowVar_ {
uint8_t type; /* type, DETECT_FLOWVAR in this case */
uint8_t datatype;
uint16_t keylen;
uint32_t idx; /* name idx */
GenericVar *next; /* right now just implement this as a list,
* in the long run we have think of something
* faster. */
union {
FlowVarTypeStr fv_str;
FlowVarTypeInt fv_int;
} data;
uint8_t *key;
} FlowVar;
/** Flowvar Interface API */
void FlowVarAddIdValue(Flow *, uint32_t id, uint8_t *value, uint16_t size);
void FlowVarAddKeyValue(Flow *f, uint8_t *key, uint16_t keysize, uint8_t *value, uint16_t size);
void FlowVarAddIntNoLock(Flow *, uint32_t, uint32_t);
void FlowVarAddInt(Flow *, uint32_t, uint32_t);
FlowVar *FlowVarGet(Flow *, uint32_t);
FlowVar *FlowVarGetByKey(Flow *f, const uint8_t *key, uint16_t keylen);
void FlowVarFree(FlowVar *);
void FlowVarPrint(GenericVar *);
#endif /* __FLOW_VAR_H__ */
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