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 write to the system extended attribute 35 * namespace. 36 */ 37 38 #include <sys/types.h> 39 #include <sys/extattr.h> 40 41 #include <err.h> 42 #include <errno.h> 43 #include <string.h> 44 #include <unistd.h> 45 46 #include "main.h" 47 48 #define EA_NAMESPACE EXTATTR_NAMESPACE_SYSTEM 49 #define EA_NAME "test" 50 #define EA_DATA "test" 51 #define EA_SIZE strlen(EA_DATA) 52 53 static char fpath[1024]; 54 static int fpath_initialized; 55 56 int 57 priv_vfs_extattr_system_setup(int asroot, int injail, struct test *test) 58 { 59 60 /* 61 * Set file perms so that discretionary access control would grant 62 * write rights on non-system EAs on the file. 63 */ 64 setup_file("priv_vfs_extattr_system_setup: fpath", fpath, UID_ROOT, 65 GID_WHEEL, 0666); 66 fpath_initialized = 1; 67 return (0); 68 } 69 70 void 71 priv_vfs_extattr_system(int asroot, int injail, struct test *test) 72 { 73 ssize_t ret; 74 int error; 75 76 ret = extattr_set_file(fpath, EA_NAMESPACE, EA_NAME, EA_DATA, 77 EA_SIZE); 78 if (ret < 0) 79 error = -1; 80 else if (ret == EA_SIZE) 81 error = 0; 82 else 83 err(-1, "priv_vfs_extattr_system: set returned %zd", ret); 84 if (asroot && injail) 85 expect("priv_vfs_extattr_system(asroot, injail)", error, -1, 86 EPERM); 87 if (asroot && !injail) 88 expect("priv_vfs_extattr_system(asroot, !injail)", error, 0, 89 0); 90 if (!asroot && injail) 91 expect("priv_vfs_extattr_system(!asroot, injail)", error, -1, 92 EPERM); 93 if (!asroot && !injail) 94 expect("priv_vfs_extattr_system(!asroot, !injail)", error, 95 -1, EPERM); 96 } 97 98 void 99 priv_vfs_extattr_system_cleanup(int asroot, int injail, struct test *test) 100 { 101 102 if (fpath_initialized) { 103 (void)unlink(fpath); 104 fpath_initialized = 0; 105 } 106 } 107