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