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 * Check that we must either be running as root or the owner of the file in 33 * order to modify permissions on the file. 34 */ 35 36 #include <sys/types.h> 37 #include <sys/stat.h> 38 39 #include <err.h> 40 #include <errno.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <unistd.h> 44 45 #include "main.h" 46 47 static char fpath[1024]; 48 static int fpath_initialized; 49 50 int 51 priv_vfs_chmod_froot_setup(int asroot, int injail, struct test *test) 52 { 53 54 setup_file("priv_vfs_chmod_setup: fpath", fpath, UID_ROOT, GID_WHEEL, 55 0600); 56 fpath_initialized = 1; 57 return (0); 58 } 59 60 int 61 priv_vfs_chmod_fowner_setup(int asroot, int injail, struct test *test) 62 { 63 64 setup_file("priv_vfs_chmod_setup: fpath", fpath, UID_OWNER, 65 GID_OWNER, 0600); 66 fpath_initialized = 1; 67 return (0); 68 } 69 70 int 71 priv_vfs_chmod_fother_setup(int asroot, int injail, struct test *test) 72 { 73 74 setup_file("priv_vfs_chmod_setup: fpath", fpath, UID_OTHER, 75 GID_OTHER, 0600); 76 fpath_initialized = 1; 77 return (0); 78 } 79 80 void 81 priv_vfs_chmod_froot(int asroot, int injail, struct test *test) 82 { 83 int error; 84 85 error = chmod(fpath, 0640); 86 if (asroot && injail) 87 expect("priv_vfs_chmod_froot(asroot, injail)", error, 0, 0); 88 if (asroot && !injail) 89 expect("priv_vfs_chmod_froot(asroot, !injail)", error, 0, 0); 90 if (!asroot && injail) 91 expect("priv_vfs_chmod_froot(!asroot, injail)", error, -1, 92 EPERM); 93 if (!asroot && !injail) 94 expect("priv_vfs_chmod_froot(!asroot, !injail)", error, -1, 95 EPERM); 96 } 97 98 void 99 priv_vfs_chmod_fowner(int asroot, int injail, struct test *test) 100 { 101 int error; 102 103 error = chmod(fpath, 0640); 104 if (asroot && injail) 105 expect("priv_vfs_chmod_fowner(asroot, injail)", error, 0, 0); 106 if (asroot && !injail) 107 expect("priv_vfs_chmod_fowner(asroot, !injail)", error, 0, 108 0); 109 if (!asroot && injail) 110 expect("priv_vfs_chmod_fowner(!asroot, injail)", error, 0, 111 0); 112 if (!asroot && !injail) 113 expect("priv_vfs_chmod_fowner(!asroot, !injail)", error, 0, 114 0); 115 } 116 117 void 118 priv_vfs_chmod_fother(int asroot, int injail, struct test *test) 119 { 120 int error; 121 122 error = chmod(fpath, 0640); 123 if (asroot && injail) 124 expect("priv_vfs_chmod_fother(asroot, injail)", error, 0, 0); 125 if (asroot && !injail) 126 expect("priv_vfs_chmod_fother(asroot, !injail)", error, 0, 127 0); 128 if (!asroot && injail) 129 expect("priv_vfs_chmod_fother(!asroot, injail)", error, -1, 130 EPERM); 131 if (!asroot && !injail) 132 expect("priv_vfs_chmod_fother(!asroot, !injail)", error, -1, 133 EPERM); 134 } 135 136 void 137 priv_vfs_chmod_cleanup(int asroot, int injail, struct test *test) 138 { 139 140 if (fpath_initialized) { 141 (void)unlink(fpath); 142 fpath_initialized = 0; 143 } 144 } 145