/*      $NetBSD: ipsec_private.h,v 1.9 2018/04/28 15:45:16 maxv Exp $   */

/*
 * Copyright (c) 2008 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _NETIPSEC_IPSEC_PRIVATE_H_
#define _NETIPSEC_IPSEC_PRIVATE_H_

#ifdef _KERNEL
#include <net/net_stats.h>

extern percpu_t *ipsecstat_percpu;
extern percpu_t *ahstat_percpu;
extern percpu_t *espstat_percpu;
extern percpu_t *ipcompstat_percpu;
extern percpu_t *ipipstat_percpu;
extern percpu_t *pfkeystat_percpu;

#define IPSEC_STAT_GETREF()     _NET_STAT_GETREF(ipsecstat_percpu)
#define IPSEC_STAT_PUTREF()     _NET_STAT_PUTREF(ipsecstat_percpu)
#define IPSEC_STATINC(x)        _NET_STATINC(ipsecstat_percpu, x)
#define IPSEC_STATADD(x, v)     _NET_STATADD(ipsecstat_percpu, x, v)

#define AH_STATINC(x)           _NET_STATINC(ahstat_percpu, x)
#define AH_STATADD(x, v)        _NET_STATADD(ahstat_percpu, x, v)

#define ESP_STATINC(x)          _NET_STATINC(espstat_percpu, x)
#define ESP_STATADD(x, v)       _NET_STATADD(espstat_percpu, x, v)

#define IPCOMP_STATINC(x)       _NET_STATINC(ipcompstat_percpu, x)
#define IPCOMP_STATADD(x, v)    _NET_STATADD(ipcompstat_percpu, x, v)

#define IPIP_STATINC(x)         _NET_STATINC(ipipstat_percpu, x)
#define IPIP_STATADD(x, v)      _NET_STATADD(ipipstat_percpu, x, v)

#define PFKEY_STAT_GETREF()     _NET_STAT_GETREF(pfkeystat_percpu)
#define PFKEY_STAT_PUTREF()     _NET_STAT_PUTREF(pfkeystat_percpu)
#define PFKEY_STATINC(x)        _NET_STATINC(pfkeystat_percpu, x)
#define PFKEY_STATADD(x, v)     _NET_STATADD(pfkeystat_percpu, x, v)

/* superuser opened socket? */
#define IPSEC_PRIVILEGED_SO(so) ((so)->so_uidinfo->ui_uid == 0)

#ifdef _KERNEL_OPT
#include "opt_net_mpsafe.h"
#endif

#ifdef NET_MPSAFE
#define IPSEC_DECLARE_LOCK_VARIABLE
#define IPSEC_ACQUIRE_GLOBAL_LOCKS()    do { } while (0)
#define IPSEC_RELEASE_GLOBAL_LOCKS()    do { } while (0)
#else
#include <sys/socketvar.h> /* for softnet_lock */

#define IPSEC_DECLARE_LOCK_VARIABLE     int __s
#define IPSEC_ACQUIRE_GLOBAL_LOCKS()    \
        do {                                    \
                __s = splsoftnet();             \
                mutex_enter(softnet_lock);      \
        } while (0)
#define IPSEC_RELEASE_GLOBAL_LOCKS()    \
        do {                                    \
                mutex_exit(softnet_lock);       \
                splx(__s);                      \
        } while (0)
#endif

#endif /* _KERNEL */

#endif /* !_NETIPSEC_IPSEC_PRIVATE_H_ */