FreeBSD/Linux Kernel Cross Reference
sys/sys/mac.h
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 * $FreeBSD$
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 */
68 struct mac {
69 size_t m_buflen;
70 char *m_string;
71 };
72
73 typedef 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
88 int mac_execve(char *fname, char **argv, char **envv, mac_t _label);
89 int mac_free(mac_t _label);
90 int mac_from_text(mac_t *_label, const char *_text);
91 int mac_get_fd(int _fd, mac_t _label);
92 int mac_get_file(const char *_path, mac_t _label);
93 int mac_get_link(const char *_path, mac_t _label);
94 int mac_get_peer(int _fd, mac_t _label);
95 int mac_get_pid(pid_t _pid, mac_t _label);
96 int mac_get_proc(mac_t _label);
97 int mac_is_present(const char *_policyname);
98 int mac_prepare(mac_t *_label, const char *_elements);
99 int mac_prepare_file_label(mac_t *_label);
100 int mac_prepare_ifnet_label(mac_t *_label);
101 int mac_prepare_process_label(mac_t *_label);
102 int mac_prepare_type(mac_t *_label, const char *_type);
103 int mac_set_fd(int _fildes, const mac_t _label);
104 int mac_set_file(const char *_path, mac_t _label);
105 int mac_set_link(const char *_path, mac_t _label);
106 int mac_set_proc(const mac_t _label);
107 int mac_syscall(const char *_policyname, int _call, void *_arg);
108 int mac_to_text(mac_t mac, char **_text);
109 __END_DECLS
110
111 #endif /* !_KERNEL */
112
113 #endif /* !_SYS_MAC_H_ */
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