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/*
* $Id$
*
* Copyright (C) 2012 dragos.dinu@1and1.ro, 1&1 Internet AG
*
* This file is part of SIP-router, a free SIP server.
*
* SIP-router is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* SIP-router 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef HASH_MODE_H
#define HASH_MODE_H 1
/*
* Determines from which part of a message will be used to calculate the hash
* Possible values are:
*
* hs_call_id the content of the Call-ID header field
* hs_from_user the username part of the URI in the From header field
* hs_to_user the username part of the URI in the To header field
* hs_error no hash specified
*/
enum hash_source {
hs_call_id = 1,
hs_from_user,
hs_to_user,
hs_error
};
/*
* CRC32 hash function
* Returns an integer number between 0 and denominator - 1 based on
* the hash source from the msg. The hash algorithm is CRC32.
*/
int hash_func (struct _sipcapture_object * sco,
enum hash_source source, int denominator);
/*
* Gets the hash source type.
*/
enum hash_source get_hash_source (const char *hash_source);
#endif
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