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New display engine for systat, based on pftop. Adds new views for pf
(status, state, rule, queue). While all displays work, some keyboard
comands are not implemented yet. Other features include better handling
of display resize and scrolling for long views. Committing now to fix
the remaining issues in the tree.
Testing and comments by otto@ and harding@, ok deraadt@

/* $Id: cache.h,v 1.1 2008/06/12 22:26:01 canacar Exp $ */
/*
 * Copyright (c) 2001, 2007 Can Erkin Acar <canacar@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _CACHE_H_
#define _CACHE_H_

#include "config.h"

#include <sys/queue.h>
#ifdef HAVE_TREE_H
#include <sys/tree.h>
#else
#include "tree.h"
#endif


struct sc_ent {
        RB_ENTRY(sc_ent)    tlink;
	TAILQ_ENTRY(sc_ent) qlink;
#ifdef HAVE_PFSYNC_STATE
	u_int32_t	    id[2];
#else
	struct pf_addr      addr[2];
#endif
	double		    peak;
	double		    rate;
	time_t		    t;
	u_int32_t	    bytes;
#ifndef HAVE_PFSYNC_STATE
        u_int16_t           port[2];
        u_int8_t            af;
        u_int8_t            proto;
#endif
};

int cache_init(int);
void cache_endupdate(void);
struct sc_ent *cache_state(pf_state_t *);
extern int cache_max, cache_size;


#endif