1/*- 2 * Copyright (c) 2005 McAfee, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: releng/10.2/tools/regression/mac/mac_bsdextended/test_ugidfw.c 157986 2006-04-23 17:06:18Z dwmalone $ 27 */ 28 29#include <sys/param.h> 30#include <sys/mac.h> 31#include <sys/mount.h> 32 33#include <security/mac_bsdextended/mac_bsdextended.h> 34 35#include <err.h> 36#include <grp.h> 37#include <pwd.h> 38#include <ugidfw.h> 39#include <stdio.h> 40#include <stdlib.h> 41#include <string.h> 42 43/* 44 * Starting point for a regression test for mac_bsdextended(4) and the 45 * supporting libugidfw(3). 46 */ 47void 48usage(void) 49{ 50 51 fprintf(stderr, "test_ugidfw\n"); 52 exit(-1); 53} 54 55/* 56 * This section of the regression test passes some test cases through the 57 * rule<->string routines to confirm they work approximately as desired. 58 */ 59 60/* 61 * List of users and groups we must check exists before we can begin, since 62 * they are used in the string test rules. We use users and groups that will 63 * always exist in a default install used for regression testing. 64 */ 65static const char *test_users[] = { 66 "root", 67 "daemon", 68 "operator", 69 "bin", 70}; 71static const int test_users_len = sizeof(test_users) / sizeof(char *); 72 73static const char *test_groups[] = { 74 "wheel", 75 "daemon", 76 "operator", 77 "bin", 78}; 79static const int test_groups_len = sizeof(test_groups) / sizeof(char *); 80 81/* 82 * List of test strings that must go in (and come out) of libugidfw intact. 83 */ 84static const char *test_strings[] = { 85 /* Variations on subject and object uids. */ 86 "subject uid root object uid root mode n", 87 "subject uid root object uid daemon mode n", 88 "subject uid daemon object uid root mode n", 89 "subject uid daemon object uid daemon mode n", 90 /* Variations on mode. */ 91 "subject uid root object uid root mode a", 92 "subject uid root object uid root mode r", 93 "subject uid root object uid root mode s", 94 "subject uid root object uid root mode w", 95 "subject uid root object uid root mode x", 96 "subject uid root object uid root mode arswx", 97 /* Variations on subject and object gids. */ 98 "subject gid wheel object gid wheel mode n", 99 "subject gid wheel object gid daemon mode n", 100 "subject gid daemon object gid wheel mode n", 101 "subject gid daemon object gid daemon mode n", 102 /* Subject uids and subject gids. */ 103 "subject uid bin gid daemon object uid operator gid wheel mode n", 104 /* Not */ 105 "subject not uid operator object uid bin mode n", 106 "subject uid bin object not uid operator mode n", 107 "subject not uid daemon object not uid operator mode n", 108 /* Ranges */ 109 "subject uid root:operator object gid wheel:bin mode n", 110 /* Jail ID */ 111 "subject jailid 1 object uid root mode n", 112 /* Filesys */ 113 "subject uid root object filesys / mode n", 114 "subject uid root object filesys /dev mode n", 115 /* S/UGID */ 116 "subject not uid root object sgid mode n", 117 "subject not uid root object sgid mode n", 118 /* Matching uid/gid */ 119 "subject not uid root:operator object not uid_of_subject mode n", 120 "subject not gid wheel:bin object not gid_of_subject mode n", 121 /* Object types */ 122 "subject uid root object type a mode a", 123 "subject uid root object type r mode a", 124 "subject uid root object type d mode a", 125 "subject uid root object type b mode a", 126 "subject uid root object type c mode a", 127 "subject uid root object type l mode a", 128 "subject uid root object type s mode a", 129 "subject uid root object type rbc mode a", 130 "subject uid root object type dls mode a", 131 /* Empty rules always match */ 132 "subject object mode a", 133 /* Partial negations */ 134 "subject ! uid root object mode n", 135 "subject ! gid wheel object mode n", 136 "subject ! jailid 2 object mode n", 137 "subject object ! uid root mode n", 138 "subject object ! gid wheel mode n", 139 "subject object ! filesys / mode n", 140 "subject object ! suid mode n", 141 "subject object ! sgid mode n", 142 "subject object ! uid_of_subject mode n", 143 "subject object ! gid_of_subject mode n", 144 "subject object ! type d mode n", 145 /* All out nonsense */ 146 "subject uid root ! gid wheel:bin ! jailid 1 " 147 "object ! uid root:daemon gid daemon filesys / suid sgid uid_of_subject gid_of_subject ! type r " 148 "mode rsx", 149}; 150static const int test_strings_len = sizeof(test_strings) / sizeof(char *); 151 152static void 153test_libugidfw_strings(void) 154{ 155 struct mac_bsdextended_rule rule; 156 char errorstr[256]; 157 char rulestr[256]; 158 int i, error; 159 160 for (i = 0; i < test_users_len; i++) { 161 if (getpwnam(test_users[i]) == NULL) 162 err(-1, "test_libugidfw_strings: getpwnam: %s", 163 test_users[i]); 164 } 165 166 for (i = 0; i < test_groups_len; i++) { 167 if (getgrnam(test_groups[i]) == NULL) 168 err(-1, "test_libugidfw_strings: getgrnam: %s", 169 test_groups[i]); 170 } 171 172 for (i = 0; i < test_strings_len; i++) { 173 error = bsde_parse_rule_string(test_strings[i], &rule, 174 sizeof(errorstr), errorstr); 175 if (error == -1) 176 errx(-1, "bsde_parse_rule_string: '%s' (%d): %s", 177 test_strings[i], i, errorstr); 178 error = bsde_rule_to_string(&rule, rulestr, sizeof(rulestr)); 179 if (error < 0) 180 errx(-1, "bsde_rule_to_string: rule for '%s' " 181 "returned %d", test_strings[i], error); 182 183 if (strcmp(test_strings[i], rulestr) != 0) 184 errx(-1, "test_libugidfw: '%s' in, '%s' out", 185 test_strings[i], rulestr); 186 } 187} 188 189int 190main(int argc, char *argv[]) 191{ 192 char errorstr[256]; 193 int count, slots; 194 195 if (argc != 1) 196 usage(); 197 198 /* Print an error if a non-root user attemps to run the tests. */ 199 if (getuid() != 0) { 200 fprintf(stderr, "Error! Only root may run this utility\n"); 201 return (EXIT_FAILURE); 202 } 203 204 /* 205 * We can test some parts of the library without the MAC Framework 206 * and policy loaded, so run those tests before calling 207 * mac_is_present(). 208 */ 209 test_libugidfw_strings(); 210 211 switch (mac_is_present("bsdextended")) { 212 case -1: 213 err(-1, "mac_is_present"); 214 case 1: 215 break; 216 case 0: 217 default: 218 errx(-1, "mac_bsdextended not loaded"); 219 } 220 221 /* 222 * Some simple up-front checks to see if we're able to query the 223 * policy for basic state. We want the rule count to be 0 before 224 * starting, but "slots" is a property of prior runs and so we ignore 225 * the return value. 226 */ 227 count = bsde_get_rule_count(sizeof(errorstr), errorstr); 228 if (count == -1) 229 errx(-1, "bsde_get_rule_count: %s", errorstr); 230 if (count != 0) 231 errx(-1, "bsde_get_rule_count: %d rules", count); 232 233 slots = bsde_get_rule_slots(sizeof(errorstr), errorstr); 234 if (slots == -1) 235 errx(-1, "bsde_get_rule_slots: %s", errorstr); 236 237 return (0); 238} 239