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      1 /*	$NetBSD: ipsec_private.h,v 1.9 2018/04/28 15:45:16 maxv Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _NETIPSEC_IPSEC_PRIVATE_H_
     33 #define _NETIPSEC_IPSEC_PRIVATE_H_
     34 
     35 #ifdef _KERNEL
     36 #include <net/net_stats.h>
     37 
     38 extern percpu_t *ipsecstat_percpu;
     39 extern percpu_t *ahstat_percpu;
     40 extern percpu_t *espstat_percpu;
     41 extern percpu_t *ipcompstat_percpu;
     42 extern percpu_t *ipipstat_percpu;
     43 extern percpu_t *pfkeystat_percpu;
     44 
     45 #define	IPSEC_STAT_GETREF()	_NET_STAT_GETREF(ipsecstat_percpu)
     46 #define	IPSEC_STAT_PUTREF()	_NET_STAT_PUTREF(ipsecstat_percpu)
     47 #define	IPSEC_STATINC(x)	_NET_STATINC(ipsecstat_percpu, x)
     48 #define	IPSEC_STATADD(x, v)	_NET_STATADD(ipsecstat_percpu, x, v)
     49 
     50 #define	AH_STATINC(x)		_NET_STATINC(ahstat_percpu, x)
     51 #define	AH_STATADD(x, v)	_NET_STATADD(ahstat_percpu, x, v)
     52 
     53 #define	ESP_STATINC(x)		_NET_STATINC(espstat_percpu, x)
     54 #define	ESP_STATADD(x, v)	_NET_STATADD(espstat_percpu, x, v)
     55 
     56 #define	IPCOMP_STATINC(x)	_NET_STATINC(ipcompstat_percpu, x)
     57 #define	IPCOMP_STATADD(x, v)	_NET_STATADD(ipcompstat_percpu, x, v)
     58 
     59 #define	IPIP_STATINC(x)		_NET_STATINC(ipipstat_percpu, x)
     60 #define	IPIP_STATADD(x, v)	_NET_STATADD(ipipstat_percpu, x, v)
     61 
     62 #define	PFKEY_STAT_GETREF()	_NET_STAT_GETREF(pfkeystat_percpu)
     63 #define	PFKEY_STAT_PUTREF()	_NET_STAT_PUTREF(pfkeystat_percpu)
     64 #define	PFKEY_STATINC(x)	_NET_STATINC(pfkeystat_percpu, x)
     65 #define	PFKEY_STATADD(x, v)	_NET_STATADD(pfkeystat_percpu, x, v)
     66 
     67 /* superuser opened socket? */
     68 #define IPSEC_PRIVILEGED_SO(so) ((so)->so_uidinfo->ui_uid == 0)
     69 
     70 #ifdef _KERNEL_OPT
     71 #include "opt_net_mpsafe.h"
     72 #endif
     73 
     74 #ifdef NET_MPSAFE
     75 #define IPSEC_DECLARE_LOCK_VARIABLE
     76 #define IPSEC_ACQUIRE_GLOBAL_LOCKS()	do { } while (0)
     77 #define IPSEC_RELEASE_GLOBAL_LOCKS()	do { } while (0)
     78 #else
     79 #include <sys/socketvar.h> /* for softnet_lock */
     80 
     81 #define IPSEC_DECLARE_LOCK_VARIABLE	int __s
     82 #define IPSEC_ACQUIRE_GLOBAL_LOCKS()	\
     83 	do {					\
     84 		__s = splsoftnet();		\
     85 		mutex_enter(softnet_lock);	\
     86 	} while (0)
     87 #define IPSEC_RELEASE_GLOBAL_LOCKS()	\
     88 	do {					\
     89 		mutex_exit(softnet_lock);	\
     90 		splx(__s);			\
     91 	} while (0)
     92 #endif
     93 
     94 #endif /* _KERNEL */
     95 
     96 #endif /* !_NETIPSEC_IPSEC_PRIVATE_H_ */
     97