/* $NetBSD: nsec3_test.c,v 1.2.4.2 2024/02/29 12:35:38 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, you can obtain one at https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ #include #include /* IWYU pragma: keep */ #include #include #include #include #include #include #define UNIT_TESTING #include #include #include #include #include #include static void iteration_test(const char *file, unsigned int expected) { isc_result_t result; dns_db_t *db = NULL; unsigned int iterations; result = dns_test_loaddb(&db, dns_dbtype_zone, "test", file); assert_int_equal(result, ISC_R_SUCCESS); iterations = dns_nsec3_maxiterations(); assert_int_equal(iterations, expected); dns_db_detach(&db); } /*% * Structure containing parameters for nsec3param_salttotext_test(). */ typedef struct { const char *nsec3param_text; /* NSEC3PARAM RDATA in text form */ const char *expected_salt; /* string expected in target buffer */ } nsec3param_salttotext_test_params_t; /*% * Check whether dns_nsec3param_salttotext() handles supplied text form * NSEC3PARAM RDATA correctly: test whether the result of calling the former is * as expected and whether it properly checks available buffer space. * * Assumes supplied text form NSEC3PARAM RDATA is valid as testing handling of * invalid NSEC3PARAM RDATA is out of scope of this unit test. */ static void nsec3param_salttotext_test(const nsec3param_salttotext_test_params_t *params) { dns_rdata_t rdata = DNS_RDATA_INIT; dns_rdata_nsec3param_t nsec3param; unsigned char buf[1024]; isc_result_t result; char salt[64]; size_t length; /* * Prepare a dns_rdata_nsec3param_t structure for testing. */ result = dns_test_rdatafromstring( &rdata, dns_rdataclass_in, dns_rdatatype_nsec3param, buf, sizeof(buf), params->nsec3param_text, false); assert_int_equal(result, ISC_R_SUCCESS); result = dns_rdata_tostruct(&rdata, &nsec3param, NULL); assert_int_equal(result, ISC_R_SUCCESS); /* * Check typical use. */ result = dns_nsec3param_salttotext(&nsec3param, salt, sizeof(salt)); assert_int_equal(result, ISC_R_SUCCESS); assert_string_equal(salt, params->expected_salt); /* * Ensure available space in the buffer is checked before the salt is * printed to it and that the amount of space checked for includes the * terminating NULL byte. */ length = strlen(params->expected_salt); assert_true(length < sizeof(salt) - 1); /* prevent buffer overwrite */ assert_true(length > 0U); /* prevent length underflow */ result = dns_nsec3param_salttotext(&nsec3param, salt, length - 1); assert_int_equal(result, ISC_R_NOSPACE); result = dns_nsec3param_salttotext(&nsec3param, salt, length); assert_int_equal(result, ISC_R_NOSPACE); result = dns_nsec3param_salttotext(&nsec3param, salt, length + 1); assert_int_equal(result, ISC_R_SUCCESS); } /* * check that appropriate max iterations is returned for different * key size mixes */ ISC_RUN_TEST_IMPL(max_iterations) { UNUSED(state); iteration_test(TESTS_DIR "/testdata/nsec3/1024.db", 150); iteration_test(TESTS_DIR "/testdata/nsec3/2048.db", 150); iteration_test(TESTS_DIR "/testdata/nsec3/4096.db", 150); iteration_test(TESTS_DIR "/testdata/nsec3/min-1024.db", 150); iteration_test(TESTS_DIR "/testdata/nsec3/min-2048.db", 150); } /* check dns_nsec3param_salttotext() */ ISC_RUN_TEST_IMPL(nsec3param_salttotext) { size_t i; const nsec3param_salttotext_test_params_t tests[] = { /* * Tests with non-empty salts. */ { "0 0 10 0123456789abcdef", "0123456789ABCDEF" }, { "0 1 11 0123456789abcdef", "0123456789ABCDEF" }, { "1 0 12 42", "42" }, { "1 1 13 42", "42" }, /* * Test with empty salt. */ { "0 0 0 -", "-" }, }; UNUSED(state); for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) { nsec3param_salttotext_test(&tests[i]); } } ISC_TEST_LIST_START ISC_TEST_ENTRY(max_iterations) ISC_TEST_ENTRY(nsec3param_salttotext) ISC_TEST_LIST_END ISC_TEST_MAIN