1 /*- 2 * Copyright (c) 2006 nCircle Network Security, Inc. 3 * Copyright (c) 2007 Robert N. M. Watson 4 * All rights reserved. 5 * 6 * This software was developed by Robert N. M. Watson for the TrustedBSD 7 * Project under contract to nCircle Network Security, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY, 22 * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 24 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 26 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 * Test that setting a kernel environment variable requires privilege. 33 */ 34 35 #include <sys/types.h> 36 37 #include <err.h> 38 #include <errno.h> 39 #include <kenv.h> 40 #include <string.h> 41 #include <unistd.h> 42 43 #include "main.h" 44 45 int 46 priv_kenv_set_setup(int asroot, int injail, struct test *test) 47 { 48 49 (void)kenv(KENV_UNSET, KENV_VAR_NAME, NULL, 0); 50 return (0); 51 } 52 53 void 54 priv_kenv_set(int asroot, int injail, struct test *test) 55 { 56 int error; 57 58 error = kenv(KENV_SET, KENV_VAR_NAME, KENV_VAR_VALUE, KENV_VAR_LEN); 59 if (asroot && injail) 60 expect("priv_kenv_set(asroot, injail)", error, -1, EPERM); 61 if (asroot && !injail) 62 expect("priv_kenv_set(asroot, !injail)", error, 0, 0); 63 if (!asroot && injail) 64 expect("priv_kenv_set(!asroot, injail)", error, -1, EPERM); 65 if (!asroot && !injail) 66 expect("priv_kenv_set(!asroot, !injail)", error, -1, EPERM); 67 } 68 69 void 70 priv_kenv_set_cleanup(int asroot, int injail, struct test *test) 71 { 72 73 (void)kenv(KENV_UNSET, KENV_VAR_NAME, NULL, 0); 74 } 75