mac.h revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1999-2002 Robert N. M. Watson
5 * Copyright (c) 2001-2005 Networks Associates Technology, Inc.
6 * Copyright (c) 2005-2006 SPARTA, Inc.
7 * All rights reserved.
8 *
9 * This software was developed by Robert Watson for the TrustedBSD Project.
10 *
11 * This software was developed for the FreeBSD Project in part by Network
12 * Associates Laboratories, the Security Research Division of Network
13 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
14 * as part of the DARPA CHATS research program.
15 *
16 * This software was enhanced by SPARTA ISSO under SPAWAR contract
17 * N66001-04-C-6019 ("SEFOS").
18 *
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
21 * are met:
22 * 1. Redistributions of source code must retain the above copyright
23 *    notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 *    notice, this list of conditions and the following disclaimer in the
26 *    documentation and/or other materials provided with the distribution.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 * $FreeBSD: stable/11/sys/sys/mac.h 330897 2018-03-14 03:19:51Z eadler $
41 */
42/*
43 * Userland interface for Mandatory Access Control.  Loosely based on the
44 * POSIX.1e API.  More information may be found at:
45 *
46 * http://www.TrustedBSD.org/
47 */
48
49#ifndef _SYS_MAC_H_
50#define	_SYS_MAC_H_
51
52#ifndef _POSIX_MAC
53#define	_POSIX_MAC
54#endif
55
56/*
57 * MAC framework-related constants and limits.
58 */
59#define	MAC_MAX_POLICY_NAME		32
60#define	MAC_MAX_LABEL_ELEMENT_NAME	32
61#define	MAC_MAX_LABEL_ELEMENT_DATA	4096
62#define	MAC_MAX_LABEL_BUF_LEN		8192
63
64/*
65 * struct mac is the data structure used to carry MAC labels in system calls
66 * and ioctls between userspace and the kernel.
67 */
68struct mac {
69	size_t		 m_buflen;
70	char		*m_string;
71};
72
73typedef struct mac	*mac_t;
74
75#ifndef _KERNEL
76
77/*
78 * Location of the userland MAC framework configuration file.  mac.conf
79 * set defaults for MAC-aware applications.
80 */
81#define	MAC_CONFFILE	"/etc/mac.conf"
82
83/*
84 * Extended non-POSIX.1e interfaces that offer additional services available
85 * from the userland and kernel MAC frameworks.
86 */
87__BEGIN_DECLS
88int	 mac_execve(char *fname, char **argv, char **envv, mac_t _label);
89int	 mac_free(mac_t _label);
90int	 mac_from_text(mac_t *_label, const char *_text);
91int	 mac_get_fd(int _fd, mac_t _label);
92int	 mac_get_file(const char *_path, mac_t _label);
93int	 mac_get_link(const char *_path, mac_t _label);
94int	 mac_get_peer(int _fd, mac_t _label);
95int	 mac_get_pid(pid_t _pid, mac_t _label);
96int	 mac_get_proc(mac_t _label);
97int	 mac_is_present(const char *_policyname);
98int	 mac_prepare(mac_t *_label, const char *_elements);
99int	 mac_prepare_file_label(mac_t *_label);
100int	 mac_prepare_ifnet_label(mac_t *_label);
101int	 mac_prepare_process_label(mac_t *_label);
102int	 mac_prepare_type(mac_t *_label, const char *_type);
103int	 mac_set_fd(int _fildes, const mac_t _label);
104int	 mac_set_file(const char *_path, mac_t _label);
105int	 mac_set_link(const char *_path, mac_t _label);
106int	 mac_set_proc(const mac_t _label);
107int	 mac_syscall(const char *_policyname, int _call, void *_arg);
108int	 mac_to_text(mac_t mac, char **_text);
109__END_DECLS
110
111#endif /* !_KERNEL */
112
113#endif /* !_SYS_MAC_H_ */
114