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