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/*
* Copyright (C) 2009 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* This program 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. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
/**
* @defgroup ha_kernel ha_kernel
* @{ @ingroup ha
*/
#ifndef HA_KERNEL_H_
#define HA_KERNEL_H_
typedef struct ha_kernel_t ha_kernel_t;
#include "ha_segments.h"
/**
* HA segment kernel configuration interface.
*/
struct ha_kernel_t {
/**
* Get the segment a host is in.
*
* @param host host to get segment for
* @return segment number
*/
u_int (*get_segment)(ha_kernel_t *this, host_t *host);
/**
* Get the segment a host/SPI is in, as used for CHILD_SA segmentation.
*
* @param host host to get segment for
* @param spi SPI to include in hash
* @return segment number
*/
u_int (*get_segment_spi)(ha_kernel_t *this, host_t *host, uint32_t spi);
/**
* Get the segment an arbitrary integer is in.
*
* @param n integer to segmentate
*/
u_int (*get_segment_int)(ha_kernel_t *this, int n);
/**
* Activate a segment at kernel level for all cluster addresses.
*
* @param segment segment to activate
*/
void (*activate)(ha_kernel_t *this, u_int segment);
/**
* Deactivate a segment at kernel level for all cluster addresses.
*
* @param segment segment to deactivate
*/
void (*deactivate)(ha_kernel_t *this, u_int segment);
/**
* Destroy a ha_kernel_t.
*/
void (*destroy)(ha_kernel_t *this);
};
/**
* Create a ha_kernel instance.
*
* @param count total number of segments to use
*/
ha_kernel_t *ha_kernel_create(u_int count);
#endif /** HA_KERNEL_ @}*/
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