2 * Test for the Heimdal shared module API.
4 * Written by Russ Allbery <eagle@eyrie.org>
5 * Copyright 2009, 2013-2014
6 * The Board of Trustees of the Leland Stanford Junior University
8 * SPDX-License-Identifier: MIT
12 #include <portable/krb5.h>
13 #include <portable/system.h>
17 #ifdef HAVE_KADM5_KADM5_PWCHECK_H
18 # include <kadm5/kadm5-pwcheck.h>
21 #include <tests/tap/basic.h>
22 #include <tests/tap/kerberos.h>
23 #include <tests/tap/process.h>
24 #include <tests/tap/string.h>
25 #include <util/macros.h>
28 * The password test data, generated from the JSON source. Defines arrays
29 * named *_tests, where * is the file name without the ".c" suffix.
31 #include <tests/data/passwords/cdb.c>
32 #include <tests/data/passwords/classes.c>
33 #include <tests/data/passwords/cracklib.c>
34 #include <tests/data/passwords/length.c>
35 #include <tests/data/passwords/letter.c>
36 #include <tests/data/passwords/principal.c>
37 #include <tests/data/passwords/sqlite.c>
40 #ifndef HAVE_KADM5_KADM5_PWCHECK_H
42 * If we're not building with Heimdal, we can't run this test and much of the
43 * test won't even compile. Replace this test with a small program that just
49 skip_all("not built against Heimdal libraries");
56 * Loads the Heimdal password change plugin and tests that its metadata is
57 * correct. Returns a pointer to the kadm5_pw_policy_verifier struct or bails
58 * on failure to load the plugin. Stores the handle in the last argument so
59 * that the caller can free the handle at the end of the test suite.
61 static struct kadm5_pw_policy_verifier *
62 load_plugin(void **handle)
65 struct kadm5_pw_policy_verifier *verifier;
67 /* Load the module. */
68 path = test_file_path("../plugin/.libs/strength.so");
70 bail("cannot find plugin");
71 *handle = dlopen(path, RTLD_NOW);
73 bail("cannot dlopen %s: %s", path, dlerror());
74 test_file_path_free(path);
76 /* Find the dispatch table and do a basic sanity check. */
77 verifier = dlsym(*handle, "kadm5_password_verifier");
79 bail("cannot get kadm5_password_verifier symbol: %s", dlerror());
80 if (verifier->funcs == NULL || verifier->funcs[0].func == NULL)
81 bail("no verifier functions in module");
83 /* Verify the metadata. */
84 is_string("krb5-strength", verifier->name, "Module name");
85 is_string("Russ Allbery", verifier->vendor, "Module vendor");
86 is_int(KADM5_PASSWD_VERSION_V1, verifier->version, "Module version");
87 is_string("krb5-strength", verifier->funcs[0].name,
88 "Module function name");
89 ok(verifier->funcs[1].name == NULL, "Only one function in module");
91 /* Return the dispatch table. */
97 * Given the dispatch table and a test case, call out to the password strength
98 * checking module and check the results.
101 is_password_test(const struct kadm5_pw_policy_verifier *verifier,
102 const struct password_test *test)
105 krb5_principal princ;
106 krb5_error_code code;
109 char error[BUFSIZ] = "";
111 /* Obtain a Kerberos context to use for parsing principal names. */
112 code = krb5_init_context(&ctx);
114 bail_krb5(ctx, code, "cannot initialize Kerberos context");
116 /* Translate the test data into the form that the verifier expects. */
117 code = krb5_parse_name(ctx, test->principal, &princ);
119 bail_krb5(ctx, code, "cannot parse principal %s", test->principal);
120 password.data = (char *) test->password;
121 password.length = strlen(test->password);
123 /* Call the verifier. */
124 result = (verifier->funcs[0].func)(ctx, princ, &password, NULL, error,
127 /* Heimdal only returns 0 or 1, so translate the expected code. */
128 is_int(test->code == 0 ? 0 : 1, result, "%s (status)", test->name);
129 is_string(test->error == NULL ? "" : test->error, error, "%s (error)",
132 /* Free data structures. */
133 krb5_free_principal(ctx, princ);
134 krb5_free_context(ctx);
141 char *path, *krb5_config, *krb5_config_empty, *tmpdir;
142 char *setup_argv[12];
144 struct kadm5_pw_policy_verifier *verifier;
148 * Calculate how many tests we have. There are five tests for the module
149 * metadata and two tests per password test. We run the principal tests
150 * three times, once each with CrackLib, CDB, and SQLite.
152 count = ARRAY_SIZE(cracklib_tests);
153 count += 2 * ARRAY_SIZE(length_tests);
154 count += ARRAY_SIZE(cdb_tests);
155 count += ARRAY_SIZE(sqlite_tests);
156 count += ARRAY_SIZE(classes_tests);
157 count += ARRAY_SIZE(letter_tests);
158 count += ARRAY_SIZE(principal_tests) * 3;
161 /* Start with the krb5.conf that contains no dictionary configuration. */
162 path = test_file_path("data/krb5.conf");
164 bail("cannot find data/krb5.conf in the test suite");
165 basprintf(&krb5_config_empty, "KRB5_CONFIG=%s", path);
166 putenv(krb5_config_empty);
168 /* Load the plugin. */
169 verifier = load_plugin(&handle);
171 /* Set up our krb5.conf with a basic configuration. */
172 setup_argv[0] = test_file_path("data/make-krb5-conf");
173 if (setup_argv[0] == NULL)
174 bail("cannot find data/make-krb5-conf in the test suite");
175 tmpdir = test_tmpdir();
176 setup_argv[1] = path;
177 setup_argv[2] = tmpdir;
178 setup_argv[3] = NULL;
179 run_setup((const char **) setup_argv);
181 /* Point KRB5_CONFIG at the newly-generated krb5.conf file. */
182 basprintf(&krb5_config, "KRB5_CONFIG=%s/krb5.conf", tmpdir);
184 free(krb5_config_empty);
186 /* Run principal tests. */
187 for (i = 0; i < ARRAY_SIZE(principal_tests); i++)
188 is_password_test(verifier, &principal_tests[i]);
190 # ifdef HAVE_CRACKLIB
192 /* Add CrackLib tests. */
193 setup_argv[3] = (char *) "password_dictionary";
194 basprintf(&setup_argv[4], "%s/data/dictionary", getenv("BUILD"));
195 setup_argv[5] = NULL;
196 run_setup((const char **) setup_argv);
198 /* Now, run all of the tests. */
199 for (i = 0; i < ARRAY_SIZE(cracklib_tests); i++) {
200 # ifdef HAVE_SYSTEM_CRACKLIB
201 if (cracklib_tests[i].skip_for_system_cracklib) {
202 skip_block(2, "not built with embedded CrackLib");
206 is_password_test(verifier, &cracklib_tests[i]);
210 * Add length restrictions and a maximum length for CrackLib. This should
211 * reject passwords as too short, but let through a password that's
212 * actually in the CrackLib dictionary.
214 setup_argv[5] = (char *) "minimum_length";
215 setup_argv[6] = (char *) "12";
216 setup_argv[7] = (char *) "cracklib_maxlen";
217 setup_argv[8] = (char *) "11";
218 setup_argv[9] = NULL;
219 run_setup((const char **) setup_argv);
221 /* Run the length tests. */
222 for (i = 0; i < ARRAY_SIZE(length_tests); i++)
223 is_password_test(verifier, &length_tests[i]);
225 /* Free the memory allocated for the CrackLib test. */
230 /* Otherwise, mark the CrackLib tests as skipped. */
231 count = ARRAY_SIZE(cracklib_tests) + ARRAY_SIZE(length_tests);
232 skip_block(count * 2, "not built with CDB support");
234 # endif /* !HAVE_CRACKLIB */
236 /* Add simple character class restrictions. */
237 setup_argv[3] = (char *) "minimum_different";
238 setup_argv[4] = (char *) "8";
239 setup_argv[5] = (char *) "require_ascii_printable";
240 setup_argv[6] = (char *) "true";
241 setup_argv[7] = (char *) "require_non_letter";
242 setup_argv[8] = (char *) "true";
243 setup_argv[9] = NULL;
244 run_setup((const char **) setup_argv);
246 /* Run the simple character class tests. */
247 for (i = 0; i < ARRAY_SIZE(letter_tests); i++)
248 is_password_test(verifier, &letter_tests[i]);
250 /* Add complex character class restrictions and remove the dictionary. */
251 setup_argv[3] = (char *) "require_classes";
252 setup_argv[4] = (char *) "8-19:lower,upper 8-15:digit 8-11:symbol 24-24:3";
253 setup_argv[5] = NULL;
254 run_setup((const char **) setup_argv);
256 /* Run the simple character class tests. */
257 for (i = 0; i < ARRAY_SIZE(classes_tests); i++)
258 is_password_test(verifier, &classes_tests[i]);
260 /* Try the length checks again with no dictionary at all. */
261 setup_argv[3] = (char *) "minimum_length";
262 setup_argv[4] = (char *) "12";
263 setup_argv[5] = NULL;
264 run_setup((const char **) setup_argv);
266 /* Run the length tests. */
267 for (i = 0; i < ARRAY_SIZE(length_tests); i++)
268 is_password_test(verifier, &length_tests[i]);
272 /* If built with CDB, set up krb5.conf to use a CDB dictionary instead. */
273 setup_argv[3] = (char *) "password_dictionary_cdb";
274 setup_argv[4] = test_file_path("data/wordlist.cdb");
275 if (setup_argv[4] == NULL)
276 bail("cannot find data/wordlist.cdb in the test suite");
277 setup_argv[5] = NULL;
278 run_setup((const char **) setup_argv);
279 test_file_path_free(setup_argv[4]);
281 /* Run the CDB tests. */
282 for (i = 0; i < ARRAY_SIZE(cdb_tests); i++)
283 is_password_test(verifier, &cdb_tests[i]);
284 for (i = 0; i < ARRAY_SIZE(principal_tests); i++)
285 is_password_test(verifier, &principal_tests[i]);
287 # else /* !HAVE_CDB */
289 /* Otherwise, mark the CDB tests as skipped. */
290 count = ARRAY_SIZE(cdb_tests) + ARRAY_SIZE(principal_tests);
291 skip_block(count * 2, "not built with CDB support");
293 # endif /* !HAVE_CDB */
298 * If built with SQLite, set up krb5.conf to use a SQLite dictionary
301 setup_argv[3] = (char *) "password_dictionary_sqlite";
302 setup_argv[4] = test_file_path("data/wordlist.sqlite");
303 if (setup_argv[4] == NULL)
304 bail("cannot find data/wordlist.sqlite in the test suite");
305 setup_argv[5] = NULL;
306 run_setup((const char **) setup_argv);
307 test_file_path_free(setup_argv[0]);
308 test_file_path_free(setup_argv[4]);
309 test_file_path_free(path);
311 /* Run the SQLite tests. */
312 for (i = 0; i < ARRAY_SIZE(sqlite_tests); i++)
313 is_password_test(verifier, &sqlite_tests[i]);
314 for (i = 0; i < ARRAY_SIZE(principal_tests); i++)
315 is_password_test(verifier, &principal_tests[i]);
317 # else /* !HAVE_SQLITE */
319 /* Otherwise, mark the SQLite tests as skipped. */
320 count = ARRAY_SIZE(sqlite_tests) + ARRAY_SIZE(principal_tests);
321 skip_block(count * 2, "not built with SQLite support");
323 # endif /* !HAVE_SQLITE */
325 /* Manually clean up after the results of make-krb5-conf. */
326 basprintf(&path, "%s/krb5.conf", tmpdir);
329 test_tmpdir_free(tmpdir);
331 /* Close down the module. */
332 if (dlclose(handle) != 0)
333 bail("cannot close plugin: %s", dlerror());
335 /* Keep valgrind clean by freeing environmental memory. */
336 putenv((char *) "KRB5_CONFIG=");
341 #endif /* HAVE_KADM5_KADM5_PWCHECK_H */