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/*
* Copyright (c) 2002-2013, 2015 Balabit
* Copyright (c) 1998-2013, 2015 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 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
* along with this program; 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 CORRELATION_CORRELATION_KEY_H_INCLUDED
#define CORRELATION_CORRELATION_KEY_H_INCLUDED
#include "syslog-ng.h"
/* rule context scope */
typedef enum
{
/* correlation happens globally, e.g. log messages even on different hosts are considered */
RCS_GLOBAL,
/* correlation happens inside the same host only, e.g. messages from other hosts are not considered */
RCS_HOST,
/* correlation happens for the same program only, e.g. messages from other programs are not considered */
RCS_PROGRAM,
/* correlation happens for the same process only, e.g. messages from a different program/pid are not considered */
RCS_PROCESS,
} CorrelationScope;
gint correlation_key_lookup_scope(const gchar *scope);
/* Our state hash contains a mixed set of values, they are either
* correlation contexts or the state entry required by rate limiting.
*/
typedef struct _CorrelationKey
{
const gchar *host;
const gchar *program;
const gchar *pid;
gchar *session_id;
/* we use guint8 to limit the size of this structure, we can have 10s of
* thousands of this structure present in memory */
guint8 /* CorrelationScope */ scope;
} CorrelationKey;
guint correlation_key_hash(gconstpointer k);
gboolean correlation_key_equal(gconstpointer k1, gconstpointer k2);
void correlation_key_init(CorrelationKey *self, CorrelationScope scope, LogMessage *msg, gchar *session_id);
#endif
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