xref: /freebsd/lib/libcasper/services/cap_sysctl/cap_sysctl.h (revision ec4deee4e4f2aef1b97d9424f25d04e91fd7dc10)
1 /*-
2  * Copyright (c) 2013 The FreeBSD Foundation
3  * All rights reserved.
4  *
5  * This software was developed by Pawel Jakub Dawidek under sponsorship from
6  * the FreeBSD Foundation.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef _CAP_SYSCTL_H_
33 #define	_CAP_SYSCTL_H_
34 
35 #ifdef HAVE_CASPER
36 #define	WITH_CASPER
37 #endif
38 
39 #include <sys/cdefs.h>
40 
41 #ifdef WITH_CASPER
42 #define	CAP_SYSCTL_READ		0x01
43 #define	CAP_SYSCTL_WRITE	0x02
44 #define	CAP_SYSCTL_RDWR		(CAP_SYSCTL_READ | CAP_SYSCTL_WRITE)
45 #define	CAP_SYSCTL_RECURSIVE	0x04
46 
47 __BEGIN_DECLS
48 
49 int cap_sysctl(cap_channel_t *chan, const int *name, u_int namelen, void *oldp,
50     size_t *oldlenp, const void *newp, size_t newlen);
51 int cap_sysctlbyname(cap_channel_t *chan, const char *name, void *oldp,
52     size_t *oldlenp, const void *newp, size_t newlen);
53 int cap_sysctlnametomib(cap_channel_t *chan, const char *name, int *mibp,
54     size_t *sizep);
55 
56 struct cap_sysctl_limit;
57 typedef struct cap_sysctl_limit cap_sysctl_limit_t;
58 
59 cap_sysctl_limit_t *cap_sysctl_limit_init(cap_channel_t *);
60 cap_sysctl_limit_t *cap_sysctl_limit_name(cap_sysctl_limit_t *limit,
61     const char *name, int flags);
62 cap_sysctl_limit_t *cap_sysctl_limit_mib(cap_sysctl_limit_t *limit,
63     const int *mibp, u_int miblen, int flags);
64 int cap_sysctl_limit(cap_sysctl_limit_t *limit);
65 
66 __END_DECLS
67 
68 #else /* !WITH_CASPER */
69 #define	cap_sysctl(chan, name, namelen, oldp, oldlenp, newp, newlen)	\
70 	sysctl((name), (namelen), (oldp), (oldlenp), (newp), (newlen))
71 #define	cap_sysctlbyname(chan, name, oldp, oldlenp, newp, newlen)	\
72 	sysctlbyname((name), (oldp), (oldlenp), (newp), (newlen))
73 #define	cap_sysctlnametomib(chan, name, mibp, sizep)			\
74 	sysctlnametomib((name), (mibp), (sizep))
75 
76 #define	cap_sysctl_limit_init(chan)				(NULL)
77 #define	cap_sysctl_limit_name(limit, name, flags)		(NULL)
78 #define	cap_sysctl_limit_mib(limit, mibp, miblen, flags)	(NULL)
79 #define	cap_sysctl_limit(limit)					(0)
80 #endif /* WITH_CASPER */
81 
82 #endif /* !_CAP_SYSCTL_H_ */
83