1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 /* 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 */ 66 struct mac { 67 size_t m_buflen; 68 char *m_string; 69 }; 70 71 typedef 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 86 int mac_execve(char *fname, char **argv, char **envv, mac_t _label); 87 int mac_free(mac_t _label); 88 int mac_from_text(mac_t *_label, const char *_text); 89 int mac_get_fd(int _fd, mac_t _label); 90 int mac_get_file(const char *_path, mac_t _label); 91 int mac_get_link(const char *_path, mac_t _label); 92 int mac_get_peer(int _fd, mac_t _label); 93 int mac_get_pid(pid_t _pid, mac_t _label); 94 int mac_get_proc(mac_t _label); 95 int mac_is_present(const char *_policyname); 96 int mac_prepare(mac_t *_label, const char *_elements); 97 int mac_prepare_file_label(mac_t *_label); 98 int mac_prepare_ifnet_label(mac_t *_label); 99 int mac_prepare_process_label(mac_t *_label); 100 int mac_prepare_type(mac_t *_label, const char *_type); 101 int mac_set_fd(int _fildes, const mac_t _label); 102 int mac_set_file(const char *_path, mac_t _label); 103 int mac_set_link(const char *_path, mac_t _label); 104 int mac_set_proc(const mac_t _label); 105 int mac_syscall(const char *_policyname, int _call, void *_arg); 106 int mac_to_text(mac_t mac, char **_text); 107 __END_DECLS 108 109 #endif /* !_KERNEL */ 110 111 #endif /* !_SYS_MAC_H_ */ 112