priv_vfs_extattr_system.c revision 196172
1162271Srwatson/*- 2162271Srwatson * Copyright (c) 2006 nCircle Network Security, Inc. 3172106Srwatson * Copyright (c) 2007 Robert N. M. Watson 4162271Srwatson * All rights reserved. 5162271Srwatson * 6162271Srwatson * This software was developed by Robert N. M. Watson for the TrustedBSD 7162271Srwatson * Project under contract to nCircle Network Security, Inc. 8162271Srwatson * 9162271Srwatson * Redistribution and use in source and binary forms, with or without 10162271Srwatson * modification, are permitted provided that the following conditions 11162271Srwatson * are met: 12162271Srwatson * 1. Redistributions of source code must retain the above copyright 13162271Srwatson * notice, this list of conditions and the following disclaimer. 14162271Srwatson * 2. Redistributions in binary form must reproduce the above copyright 15162271Srwatson * notice, this list of conditions and the following disclaimer in the 16162271Srwatson * documentation and/or other materials provided with the distribution. 17162271Srwatson * 18162271Srwatson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19162271Srwatson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20162271Srwatson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21162271Srwatson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY, 22162271Srwatson * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23162271Srwatson * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 24162271Srwatson * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 25162271Srwatson * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 26162271Srwatson * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 27162271Srwatson * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28162271Srwatson * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29162271Srwatson * 30162271Srwatson * $FreeBSD: head/tools/regression/priv/priv_vfs_extattr_system.c 196172 2009-08-13 09:11:47Z bz $ 31162271Srwatson */ 32162271Srwatson 33162271Srwatson/* 34162271Srwatson * Test that privilege is required to write to the system extended attribute 35162271Srwatson * namespace. 36162271Srwatson */ 37162271Srwatson 38162271Srwatson#include <sys/types.h> 39162271Srwatson#include <sys/extattr.h> 40162271Srwatson 41162271Srwatson#include <err.h> 42162271Srwatson#include <errno.h> 43162271Srwatson#include <string.h> 44162271Srwatson#include <unistd.h> 45162271Srwatson 46162271Srwatson#include "main.h" 47162271Srwatson 48162271Srwatson#define EA_NAMESPACE EXTATTR_NAMESPACE_SYSTEM 49162271Srwatson#define EA_NAME "test" 50162271Srwatson#define EA_DATA "test" 51162271Srwatson#define EA_SIZE strlen(EA_DATA) 52162271Srwatson 53172106Srwatsonstatic char fpath[1024]; 54172106Srwatsonstatic int fpath_initialized; 55172106Srwatson 56172106Srwatsonint 57172106Srwatsonpriv_vfs_extattr_system_setup(int asroot, int injail, struct test *test) 58162271Srwatson{ 59162271Srwatson 60162271Srwatson /* 61162271Srwatson * Set file perms so that discretionary access control would grant 62162271Srwatson * write rights on non-system EAs on the file. 63162271Srwatson */ 64172106Srwatson setup_file("priv_vfs_extattr_system_setup: fpath", fpath, UID_ROOT, 65172106Srwatson GID_WHEEL, 0666); 66172106Srwatson fpath_initialized = 1; 67172106Srwatson return (0); 68172106Srwatson} 69162271Srwatson 70172106Srwatsonvoid 71172106Srwatsonpriv_vfs_extattr_system(int asroot, int injail, struct test *test) 72172106Srwatson{ 73172106Srwatson ssize_t ret; 74172106Srwatson int error; 75162271Srwatson 76172106Srwatson ret = extattr_set_file(fpath, EA_NAMESPACE, EA_NAME, EA_DATA, 77172106Srwatson EA_SIZE); 78172106Srwatson if (ret < 0) 79172106Srwatson error = -1; 80172106Srwatson else if (ret == EA_SIZE) 81172106Srwatson error = 0; 82172106Srwatson else 83196172Sbz err(-1, "priv_vfs_extattr_system: set returned %zd", ret); 84172106Srwatson if (asroot && injail) 85172106Srwatson expect("priv_vfs_extattr_system(asroot, injail)", error, -1, 86172106Srwatson EPERM); 87172106Srwatson if (asroot && !injail) 88172106Srwatson expect("priv_vfs_extattr_system(asroot, !injail)", error, 0, 89172106Srwatson 0); 90172106Srwatson if (!asroot && injail) 91172106Srwatson expect("priv_vfs_extattr_system(!asroot, injail)", error, -1, 92172106Srwatson EPERM); 93172106Srwatson if (!asroot && !injail) 94172106Srwatson expect("priv_vfs_extattr_system(!asroot, !injail)", error, 95172106Srwatson -1, EPERM); 96172106Srwatson} 97162271Srwatson 98172106Srwatsonvoid 99172106Srwatsonpriv_vfs_extattr_system_cleanup(int asroot, int injail, struct test *test) 100172106Srwatson{ 101172106Srwatson 102172106Srwatson if (fpath_initialized) { 103172106Srwatson (void)unlink(fpath); 104172106Srwatson fpath_initialized = 0; 105162271Srwatson } 106162271Srwatson} 107