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 * $FreeBSD$ 31 */ 32 33 /* 34 * Test that privilege is required to set the sgid bit on a file with a group 35 * that isn't in the process credential. The file uid owner is set to the 36 * uid being tested with, as we are not interested in testing privileges 37 * associated with file ownership. 38 */ 39 40 #include <sys/stat.h> 41 42 #include <err.h> 43 #include <errno.h> 44 #include <fcntl.h> 45 #include <unistd.h> 46 47 #include "main.h" 48 49 static char fpath[1024]; 50 static int fpath_initialized; 51 52 int 53 priv_vfs_setgid_fowner_setup(int asroot, int injail, struct test *test) 54 { 55 56 setup_file("priv_vfs_setgid_fowner: fpath", fpath, UID_OWNER, 57 GID_OWNER, 0600); 58 fpath_initialized = 1; 59 return (0); 60 } 61 62 int 63 priv_vfs_setgid_fother_setup(int asroot, int injail, struct test *test) 64 { 65 66 /* NOTE: owner uid, *other* gid. */ 67 setup_file("priv_vfs_setgid_forther: fpath", fpath, UID_OWNER, 68 GID_OTHER, 0600); 69 fpath_initialized = 1; 70 return (0); 71 } 72 73 void 74 priv_vfs_setgid_fowner(int asroot, int injail, struct test *test) 75 { 76 int error; 77 78 error = chmod(fpath, 0600 | S_ISGID); 79 if (asroot && injail) 80 expect("priv_vfs_setgid_fowner(asroot, injail)", error, 0, 81 0); 82 if (asroot && !injail) 83 expect("priv_vfs_setgid_fowner(asroot, !injail)", error, 0, 84 0); 85 if (!asroot && injail) 86 expect("priv_vfs_setgid_fowner(!asroot, injail)", error, 0, 87 0); 88 if (!asroot && !injail) 89 expect("priv_vfs_setgid_fowner(!asroot, !injail)", error, 0, 90 0); 91 } 92 93 void 94 priv_vfs_setgid_fother(int asroot, int injail, struct test *test) 95 { 96 int error; 97 98 error = chmod(fpath, 0600 | S_ISGID); 99 if (asroot && injail) 100 expect("priv_vfs_setgid_fother(asroot, injail)", error, 0, 101 0); 102 if (asroot && !injail) 103 expect("priv_vfs_setgid_fother(asroot, !injail)", error, 0, 104 0); 105 if (!asroot && injail) 106 expect("priv_vfs_setgid_fother(!asroot, injail)", error, -1, 107 EPERM); 108 if (!asroot && !injail) 109 expect("priv_vfs_setgid_fother(!asroot, !injail)", error, -1, 110 EPERM); 111 } 112 113 void 114 priv_vfs_setgid_cleanup(int asroot, int injail, struct test *test) 115 { 116 117 if (fpath_initialized) { 118 (void)unlink(fpath); 119 fpath_initialized = 0; 120 } 121 } 122