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/*
* Copyright (c) 2002-2010 BalaBit IT Ltd, Budapest, Hungary
* Copyright (c) 1998-2010 Balázs Scheidler
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#ifndef RADIX_H_INCLUDED
#define RADIX_H_INCLUDED
#include "logmsg.h"
#include "messages.h"
/* parser types, these are saved in the serialized log message along with
* the match information thus they have to remain the same in order to keep
* compatibility, thus add new stuff at the end */
enum
{
RPT_STRING,
RPT_QSTRING,
RPT_ESTRING,
RPT_IPV4,
RPT_NUMBER,
RPT_ANYSTRING,
RPT_IPV6,
RPT_IP,
RPT_FLOAT
};
typedef struct _RParserMatch
{
/* if this pointer is non-NULL, it means that we've transformed the
* original message to something else, and thus we couldn't get a
* reference from the original payload */
gchar *match;
/* the value in which to store this match */
NVHandle handle;
guint16 len;
guint16 ofs;
guint8 type;
} RParserMatch;
typedef struct _RParserNode
{
/* user supplied parameters */
/* user supplied parameters */
gchar *param;
/* internal state of the parser node */
gpointer state;
guint8 first;
guint8 last;
guint8 type;
NVHandle handle;
gboolean (*parse)(guint8 *str, gint *len, const gchar *param, gpointer state, RParserMatch *match);
void (*free_state)(gpointer state);
} RParserNode;
typedef gchar *(*RNodeGetValueFunc) (gpointer value);
typedef struct _RNode RNode;
struct _RNode
{
guint8 *key;
gint keylen;
RParserNode *parser;
gpointer value;
guint num_children;
RNode **children;
guint num_pchildren;
RNode **pchildren;
};
typedef struct _RDebugInfo
{
RNode *node;
RParserNode *pnode;
gint i;
gint match_off;
gint match_len;
} RDebugInfo;
static inline gchar *
r_parser_type_name(guint8 type)
{
switch (type)
{
case RPT_STRING:
return "STRING";
case RPT_QSTRING:
return "QSTRING";
case RPT_ESTRING:
return "ESTRING";
case RPT_IPV4:
return "IPv4";
case RPT_NUMBER:
return "NUMBER";
case RPT_ANYSTRING:
return "ANYSTRING";
case RPT_IPV6:
return "IPv6";
case RPT_IP:
return "IP";
case RPT_FLOAT:
return "FLOAT";
default:
return "UNKNOWN";
}
}
RNode *r_new_node(guint8 *key, gpointer value);
void r_free_node(RNode *node, void (*free_fn)(gpointer data));
void r_insert_node(RNode *root, guint8 *key, gpointer value, gboolean parser, RNodeGetValueFunc value_func);
RNode *r_find_node(RNode *root, guint8 *whole_key, guint8 *key, gint keylen, GArray *matches);
RNode *r_find_node_dbg(RNode *root, guint8 *whole_key, guint8 *key, gint keylen, GArray *matches, GArray *dbg_list);
#endif
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