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Add test_ssl unit test and test export of PEM to file
This introduces a number of mock function to be able to compile ssl_verify_*.c and ssl_mbedtls.c/ssl_openssl.c into a unit and adds quite a number of files to that unit. But it allows similar unit tests (in term of dependencies) to be added in the future. Change-Id: Ie248d35d063bb6878f3dd42840c77ba0d6fa3381 Signed-off-by: Arne Schwabe <[email protected]> Acked-by: Gert Doering <[email protected]> Message-Id: <[email protected]> URL: https://www.mail-archive.com/[email protected]/msg28028.html Signed-off-by: Gert Doering <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| /* | ||
| * OpenVPN -- An application to securely tunnel IP networks | ||
| * over a single UDP port, with support for SSL/TLS-based | ||
| * session authentication and key exchange, | ||
| * packet encryption, packet authentication, and | ||
| * packet compression. | ||
| * | ||
| * Copyright (C) 2002-2023 OpenVPN Inc <[email protected]> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 2 | ||
| * as published by the Free Software Foundation. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License along | ||
| * with this program; if not, write to the Free Software Foundation, Inc., | ||
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| */ | ||
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| /* Minimal set of mocked management function/globals to get unit tests to | ||
| * compile */ | ||
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| #ifdef HAVE_CONFIG_H | ||
| #include "config.h" | ||
| #endif | ||
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| #include "syshead.h" | ||
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| #include "manage.h" | ||
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| #ifdef ENABLE_MANAGEMENT | ||
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| struct management *management; /* GLOBAL */ | ||
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| void | ||
| management_auth_failure(struct management *man, const char *type, const char *reason) | ||
| { | ||
| ASSERT(false); | ||
| } | ||
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| char * | ||
| management_query_pk_sig(struct management *man, const char *b64_data, | ||
| const char *algorithm) | ||
| { | ||
| return NULL; | ||
| } | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| /* | ||
| * OpenVPN -- An application to securely tunnel IP networks | ||
| * over a single UDP port, with support for SSL/TLS-based | ||
| * session authentication and key exchange, | ||
| * packet encryption, packet authentication, and | ||
| * packet compression. | ||
| * | ||
| * Copyright (C) 2002-2023 OpenVPN Inc <[email protected]> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 2 | ||
| * as published by the Free Software Foundation. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License along | ||
| * with this program; if not, write to the Free Software Foundation, Inc., | ||
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| */ | ||
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| /* Minimal set of mocked function/globals to get unit tests to | ||
| * compile that use the ssl_* files */ | ||
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| #ifdef HAVE_CONFIG_H | ||
| #include "config.h" | ||
| #endif | ||
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| #include "syshead.h" | ||
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| #include <setjmp.h> | ||
| #include <cmocka.h> | ||
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| #include "ssl.h" | ||
| #include "ssl_verify.h" | ||
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| int | ||
| parse_line(const char *line, char **p, const int n, const char *file, | ||
| const int line_num, int msglevel, struct gc_arena *gc) | ||
| { | ||
| /* Dummy function to get the linker happy, should never be called */ | ||
| assert_true(false); | ||
| return 0; | ||
| } | ||
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| int | ||
| pem_password_callback(char *buf, int size, int rwflag, void *u) | ||
| { | ||
| return 0; | ||
| } | ||
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| void | ||
| cert_hash_remember(struct tls_session *session, const int cert_depth, | ||
| const struct buffer *cert_hash) | ||
| { | ||
| assert_false(true); | ||
| } | ||
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| result_t | ||
| verify_cert(struct tls_session *session, openvpn_x509_cert_t *cert, int cert_depth) | ||
| { | ||
| return FAILURE; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| /* | ||
| * OpenVPN -- An application to securely tunnel IP networks | ||
| * over a single UDP port, with support for SSL/TLS-based | ||
| * session authentication and key exchange, | ||
| * packet encryption, packet authentication, and | ||
| * packet compression. | ||
| * | ||
| * Copyright (C) 2023 OpenVPN Inc <[email protected]> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 2 | ||
| * as published by the Free Software Foundation. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License along | ||
| * with this program; if not, write to the Free Software Foundation, Inc., | ||
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| */ | ||
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| #ifdef HAVE_CONFIG_H | ||
| #include "config.h" | ||
| #endif | ||
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| #include "syshead.h" | ||
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| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <stdarg.h> | ||
| #include <string.h> | ||
| #include <setjmp.h> | ||
| #include <cmocka.h> | ||
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| #include "crypto.h" | ||
| #include "options.h" | ||
| #include "ssl_backend.h" | ||
| #include "options_util.h" | ||
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| #include "mock_msg.h" | ||
| #include "mss.h" | ||
| #include "ssl_verify_backend.h" | ||
| #include "win32.h" | ||
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| /* Mock function to be allowed to include win32.c which is required for | ||
| * getting the temp directory */ | ||
| #ifdef _WIN32 | ||
| struct signal_info siginfo_static; /* GLOBAL */ | ||
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| const char * | ||
| strerror_win32(DWORD errnum, struct gc_arena *gc) | ||
| { | ||
| ASSERT(false); | ||
| } | ||
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| void | ||
| throw_signal(const int signum) | ||
| { | ||
| ASSERT(false); | ||
| } | ||
| #endif | ||
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| const char *unittest_cert = "-----BEGIN CERTIFICATE-----\n" | ||
| "MIIBuTCCAUCgAwIBAgIUTLtjSBzx53qZRvZ6Ur7D9kgoOHkwCgYIKoZIzj0EAwIw\n" | ||
| "EzERMA8GA1UEAwwIdW5pdHRlc3QwIBcNMjMxMTIxMDk1NDQ3WhgPMjA3ODA4MjQw\n" | ||
| "OTU0NDdaMBMxETAPBgNVBAMMCHVuaXR0ZXN0MHYwEAYHKoZIzj0CAQYFK4EEACID\n" | ||
| "YgAEHYB2hn2xx3f4lClXDtdi36P19pMZA+kI1Dkv/Vn10vBZ/j9oa+P99T8duz/e\n" | ||
| "QlPeHpesNJO4fX8iEDj6+vMeWejOT7jAQ4MmG5EZjpcBKxCfwFooEvzu8bVujUcu\n" | ||
| "wTQEo1MwUTAdBgNVHQ4EFgQUPcgBEVXjF5vYfDsInoE3dF6UfQswHwYDVR0jBBgw\n" | ||
| "FoAUPcgBEVXjF5vYfDsInoE3dF6UfQswDwYDVR0TAQH/BAUwAwEB/zAKBggqhkjO\n" | ||
| "PQQDAgNnADBkAjBLPAGrQAyinigqiu0RomoV8TVaknVLFSq6H6A8jgvzfsFCUK1O\n" | ||
| "dvNZhFPM6idKB+oCME2JLOBANCSV8o7aJzq7SYHKwPyb1J4JFlwKe/0Jpv7oh9b1\n" | ||
| "IJbuaM9Z/VSKbrIXGg==\n" | ||
| "-----END CERTIFICATE-----\n"; | ||
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| static const char * | ||
| get_tmp_dir() | ||
| { | ||
| const char *ret; | ||
| #ifdef _WIN32 | ||
| ret = win_get_tempdir(); | ||
| #else | ||
| ret = "/tmp"; | ||
| #endif | ||
| assert_non_null(ret); | ||
| return ret; | ||
| } | ||
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| static void | ||
| crypto_pem_encode_certificate(void **state) | ||
| { | ||
| struct gc_arena gc = gc_new(); | ||
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| struct tls_root_ctx ctx = { 0 }; | ||
| tls_ctx_client_new(&ctx); | ||
| tls_ctx_load_cert_file(&ctx, unittest_cert, true); | ||
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| openvpn_x509_cert_t *cert = NULL; | ||
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| /* we do not have methods to fetch certificates from ssl contexts, use | ||
| * internal TLS library methods for the unit test */ | ||
| #ifdef ENABLE_CRYPTO_OPENSSL | ||
| cert = SSL_CTX_get0_certificate(ctx.ctx); | ||
| #elif defined(ENABLE_CRYPTO_MBEDTLS) | ||
| cert = ctx.crt_chain; | ||
| #endif | ||
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| const char *tmpfile = platform_create_temp_file(get_tmp_dir(), "ut_pem", &gc); | ||
| backend_x509_write_pem(cert, tmpfile); | ||
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| struct buffer exported_pem = buffer_read_from_file(tmpfile, &gc); | ||
| assert_string_equal(BSTR(&exported_pem), unittest_cert); | ||
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| tls_ctx_free(&ctx); | ||
| unlink(tmpfile); | ||
| gc_free(&gc); | ||
| } | ||
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| int | ||
| main(void) | ||
| { | ||
| const struct CMUnitTest tests[] = { | ||
| cmocka_unit_test(crypto_pem_encode_certificate) | ||
| }; | ||
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| #if defined(ENABLE_CRYPTO_OPENSSL) | ||
| OpenSSL_add_all_algorithms(); | ||
| #endif | ||
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| int ret = cmocka_run_group_tests_name("crypto tests", tests, NULL, NULL); | ||
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| #if defined(ENABLE_CRYPTO_OPENSSL) | ||
| EVP_cleanup(); | ||
| #endif | ||
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| return ret; | ||
| } |