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 * $FreeBSD$ 31162271Srwatson */ 32162271Srwatson 33162271Srwatson/* 34162271Srwatson * Test that privilege is required to set the sgid bit on a file with a group 35162271Srwatson * that isn't in the process credential. The file uid owner is set to the 36162271Srwatson * uid being tested with, as we are not interested in testing privileges 37162271Srwatson * associated with file ownership. 38162271Srwatson */ 39162271Srwatson 40162271Srwatson#include <sys/stat.h> 41162271Srwatson 42162271Srwatson#include <err.h> 43162271Srwatson#include <errno.h> 44162271Srwatson#include <fcntl.h> 45162271Srwatson#include <unistd.h> 46162271Srwatson 47162271Srwatson#include "main.h" 48162271Srwatson 49172106Srwatsonstatic char fpath[1024]; 50172106Srwatsonstatic int fpath_initialized; 51162271Srwatson 52172106Srwatsonint 53172106Srwatsonpriv_vfs_setgid_fowner_setup(int asroot, int injail, struct test *test) 54162271Srwatson{ 55162271Srwatson 56172106Srwatson setup_file("priv_vfs_setgid_fowner: fpath", fpath, UID_OWNER, 57172106Srwatson GID_OWNER, 0600); 58172106Srwatson fpath_initialized = 1; 59172106Srwatson return (0); 60172106Srwatson} 61162271Srwatson 62172106Srwatsonint 63172106Srwatsonpriv_vfs_setgid_fother_setup(int asroot, int injail, struct test *test) 64172106Srwatson{ 65162271Srwatson 66172106Srwatson /* NOTE: owner uid, *other* gid. */ 67172106Srwatson setup_file("priv_vfs_setgid_forther: fpath", fpath, UID_OWNER, 68172106Srwatson GID_OTHER, 0600); 69172106Srwatson fpath_initialized = 1; 70172106Srwatson return (0); 71172106Srwatson} 72162271Srwatson 73172106Srwatsonvoid 74172106Srwatsonpriv_vfs_setgid_fowner(int asroot, int injail, struct test *test) 75172106Srwatson{ 76172106Srwatson int error; 77162271Srwatson 78172106Srwatson error = chmod(fpath, 0600 | S_ISGID); 79172106Srwatson if (asroot && injail) 80172106Srwatson expect("priv_vfs_setgid_fowner(asroot, injail)", error, 0, 81172106Srwatson 0); 82172106Srwatson if (asroot && !injail) 83172106Srwatson expect("priv_vfs_setgid_fowner(asroot, !injail)", error, 0, 84172106Srwatson 0); 85172106Srwatson if (!asroot && injail) 86172106Srwatson expect("priv_vfs_setgid_fowner(!asroot, injail)", error, 0, 87172106Srwatson 0); 88172106Srwatson if (!asroot && !injail) 89172106Srwatson expect("priv_vfs_setgid_fowner(!asroot, !injail)", error, 0, 90172106Srwatson 0); 91172106Srwatson} 92162271Srwatson 93172106Srwatsonvoid 94172106Srwatsonpriv_vfs_setgid_fother(int asroot, int injail, struct test *test) 95172106Srwatson{ 96172106Srwatson int error; 97162271Srwatson 98172106Srwatson error = chmod(fpath, 0600 | S_ISGID); 99172106Srwatson if (asroot && injail) 100172106Srwatson expect("priv_vfs_setgid_fother(asroot, injail)", error, 0, 101172106Srwatson 0); 102172106Srwatson if (asroot && !injail) 103172106Srwatson expect("priv_vfs_setgid_fother(asroot, !injail)", error, 0, 104172106Srwatson 0); 105172106Srwatson if (!asroot && injail) 106172106Srwatson expect("priv_vfs_setgid_fother(!asroot, injail)", error, -1, 107172106Srwatson EPERM); 108172106Srwatson if (!asroot && !injail) 109172106Srwatson expect("priv_vfs_setgid_fother(!asroot, !injail)", error, -1, 110172106Srwatson EPERM); 111172106Srwatson} 112162271Srwatson 113172106Srwatsonvoid 114172106Srwatsonpriv_vfs_setgid_cleanup(int asroot, int injail, struct test *test) 115172106Srwatson{ 116162271Srwatson 117172106Srwatson if (fpath_initialized) { 118172106Srwatson (void)unlink(fpath); 119172106Srwatson fpath_initialized = 0; 120162271Srwatson } 121162271Srwatson} 122