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 privilege is required to write to the system extended attribute 33 * namespace. 34 */ 35 36 #include <sys/types.h> 37 #include <sys/extattr.h> 38 39 #include <err.h> 40 #include <errno.h> 41 #include <string.h> 42 #include <unistd.h> 43 44 #include "main.h" 45 46 #define EA_NAMESPACE EXTATTR_NAMESPACE_SYSTEM 47 #define EA_NAME "test" 48 #define EA_DATA "test" 49 #define EA_SIZE strlen(EA_DATA) 50 51 static char fpath[1024]; 52 static int fpath_initialized; 53 54 int 55 priv_vfs_extattr_system_setup(int asroot, int injail, struct test *test) 56 { 57 58 /* 59 * Set file perms so that discretionary access control would grant 60 * write rights on non-system EAs on the file. 61 */ 62 setup_file("priv_vfs_extattr_system_setup: fpath", fpath, UID_ROOT, 63 GID_WHEEL, 0666); 64 fpath_initialized = 1; 65 return (0); 66 } 67 68 void 69 priv_vfs_extattr_system(int asroot, int injail, struct test *test) 70 { 71 ssize_t ret; 72 int error; 73 74 ret = extattr_set_file(fpath, EA_NAMESPACE, EA_NAME, EA_DATA, 75 EA_SIZE); 76 if (ret < 0) 77 error = -1; 78 else if (ret == EA_SIZE) 79 error = 0; 80 else 81 err(-1, "priv_vfs_extattr_system: set returned %zd", ret); 82 if (asroot && injail) 83 expect("priv_vfs_extattr_system(asroot, injail)", error, -1, 84 EPERM); 85 if (asroot && !injail) 86 expect("priv_vfs_extattr_system(asroot, !injail)", error, 0, 87 0); 88 if (!asroot && injail) 89 expect("priv_vfs_extattr_system(!asroot, injail)", error, -1, 90 EPERM); 91 if (!asroot && !injail) 92 expect("priv_vfs_extattr_system(!asroot, !injail)", error, 93 -1, EPERM); 94 } 95 96 void 97 priv_vfs_extattr_system_cleanup(int asroot, int injail, struct test *test) 98 { 99 100 if (fpath_initialized) { 101 (void)unlink(fpath); 102 fpath_initialized = 0; 103 } 104 } 105