1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include "lint.h" 28 #include <sys/types.h> 29 #include <sys/syscall.h> 30 #include <sys/tsol/tsyscall.h> 31 #include <unistd.h> 32 #include <limits.h> 33 #include <stdlib.h> 34 #include <errno.h> 35 #include "libc.h" 36 37 static int _is_labeled = -1; 38 39 /* 40 * is_system_labeled : 41 * Return the status of MAC labeling on this system. 42 * Returns 0 if labeling is not installed or not active, 43 */ 44 int 45 is_system_labeled(void) 46 { 47 if (_is_labeled >= 0) 48 return (_is_labeled); /* fast path if cached */ 49 50 return (_is_labeled = syscall(SYS_labelsys, TSOL_SYSLABELING)); 51 } 52