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Diffstat (limited to '')
| -rw-r--r-- | tests/name-constraints.c | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/tests/name-constraints.c b/tests/name-constraints.c new file mode 100644 index 0000000..a6f3fe7 --- /dev/null +++ b/tests/name-constraints.c @@ -0,0 +1,331 @@ +/* + * Copyright (C) 2014 Free Software Foundation, Inc. + * + * Authors: Nikos Mavrogiannopoulos, Martin Ukrop + * + * This file is part of GnuTLS. + * + * GnuTLS is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * GnuTLS 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 GnuTLS; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +/* Parts copied from GnuTLS example programs. */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <unistd.h> +#include <gnutls/gnutls.h> +#include <gnutls/x509.h> + +#include "utils.h" + +/* Test for name constraints PKIX extension. + */ + +static void check_for_error(int ret) { + if (ret != GNUTLS_E_SUCCESS) + fail("error in %d: %s\n", __LINE__, gnutls_strerror(ret)); +} + +#define NAME_ACCEPTED 1 +#define NAME_REJECTED 0 + +static void check_test_result(int ret, int expected_outcome, gnutls_datum_t *tested_data) { + if (expected_outcome == NAME_ACCEPTED ? ret == 0 : ret != 0) { + if (expected_outcome == NAME_ACCEPTED) { + fail("Checking \"%.*s\" should have succeeded.\n", tested_data->size, tested_data->data); + } else { + fail("Checking \"%.*s\" should have failed.\n", tested_data->size, tested_data->data); + } + } +} + +static void set_name(const char *name, gnutls_datum_t *datum) { + datum->data = (unsigned char*) name; + datum->size = strlen((char*) name); +} + +static void tls_log_func(int level, const char *str) +{ + fprintf(stderr, "<%d>| %s", level, str); +} + +static unsigned char cert_pem[] = + "-----BEGIN CERTIFICATE-----\n" + "MIIEMTCCAxmgAwIBAgIBADANBgkqhkiG9w0BAQUFADCBlTELMAkGA1UEBhMCR1Ix\n" + "RDBCBgNVBAoTO0hlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNlYXJjaCBJbnN0aXR1\n" + "dGlvbnMgQ2VydC4gQXV0aG9yaXR5MUAwPgYDVQQDEzdIZWxsZW5pYyBBY2FkZW1p\n" + "YyBhbmQgUmVzZWFyY2ggSW5zdGl0dXRpb25zIFJvb3RDQSAyMDExMB4XDTExMTIw\n" + "NjEzNDk1MloXDTMxMTIwMTEzNDk1MlowgZUxCzAJBgNVBAYTAkdSMUQwQgYDVQQK\n" + "EztIZWxsZW5pYyBBY2FkZW1pYyBhbmQgUmVzZWFyY2ggSW5zdGl0dXRpb25zIENl\n" + "cnQuIEF1dGhvcml0eTFAMD4GA1UEAxM3SGVsbGVuaWMgQWNhZGVtaWMgYW5kIFJl\n" + "c2VhcmNoIEluc3RpdHV0aW9ucyBSb290Q0EgMjAxMTCCASIwDQYJKoZIhvcNAQEB\n" + "BQADggEPADCCAQoCggEBAKlTAOMupvaO+mDYLZU++CwqVE7NuYRhlFhPjz2L5EPz\n" + "dYmNUeTDN9KKiE15HrcS3UN4SoqS5tdI1Q+kOilENbgH9mgdVc04UfCMJDGFr4PJ\n" + "fel3r+0ae50X+bOdOFAPplp5kYCvN66m0zH7tSYJnTxa71HFK9+WXesyHgLacEns\n" + "bgzImjeN9/E2YEsmLIKe0HjzDQ9jpFEw4fkrJxIH2Oq9GGKYsFk3fb7u8yBRQlqD\n" + "75O6aRXxYp2fmTmCobd0LovUxQt7L/DICto9eQqakxylKHJzkUOap9FNhYS5qXSP\n" + "FEDH3N6sQWRstBmbAmNtJGSPRLIl6s5ddAxjMlyNh+UCAwEAAaOBiTCBhjAPBgNV\n" + "HRMBAf8EBTADAQH/MAsGA1UdDwQEAwIBBjAdBgNVHQ4EFgQUppFC/RNhSiOeCKQp\n" + "5dgTBCPuQSUwRwYDVR0eBEAwPqA8MAWCAy5ncjAFggMuZXUwBoIELmVkdTAGggQu\n" + "b3JnMAWBAy5ncjAFgQMuZXUwBoEELmVkdTAGgQQub3JnMA0GCSqGSIb3DQEBBQUA\n" + "A4IBAQAf73lB4XtuP7KMhjdCSk4cNx6NZrokgclPEg8hwAOXhiVtXdMiKahsog2p\n" + "6z0GW5k6x8zDmjR/qw7IThzh+uTczQ2+vyT+bOdrwg3IBp5OjWEopmr95fZi6hg8\n" + "TqBTnbI6nOulnJEWtk2C4AwFSKls9cz4y51JtPACpf1wA+2KIaWuE4ZJwzNzvoc7\n" + "dIsXRSZMFpGD/md9zU1jZ/rzAxKWeAaNsWftjj++n08C9bMJL/NMh98qy5V8Acys\n" + "Nnq/onN694/BtZqhFLKPM58N7yLcZnuEvUUXBj08yrl3NI/K6s8/MT7jiOOASSXI\n" + "l7WdmplNsDz4SgCbZN2fOUvRJ9e4\n" + "-----END CERTIFICATE-----\n"; + +const gnutls_datum_t cert = { cert_pem, sizeof(cert_pem) }; + +const gnutls_datum_t name1 = { (void*)"com", 3 }; +const gnutls_datum_t name2 = { (void*)"example.com", sizeof("example.com")-1 }; +const gnutls_datum_t name3 = { (void*)"another.example.com", sizeof("another.example.com")-1 }; +const gnutls_datum_t name4 = { (void*)".gr", 3 }; + +const gnutls_datum_t mail1 = { (void*)"example.com", sizeof("example.com")-1 }; +const gnutls_datum_t mail2 = { (void*)".example.net", sizeof(".example.net")-1 }; +const gnutls_datum_t mail3 = { (void*)"nmav@redhat.com", sizeof("nmav@redhat.com")-1 }; +const gnutls_datum_t mail4 = { (void*)"koko.example.net", sizeof("koko.example.net")-1 }; + +void doit(void) +{ + int ret; + unsigned int crit, i, permitted, excluded; + gnutls_x509_crt_t crt; + gnutls_x509_name_constraints_t nc; + unsigned type; + gnutls_datum_t name; + + gnutls_global_set_log_function(tls_log_func); + if (debug) + gnutls_global_set_log_level(6); + + /* 0: test the reading of name constraints */ + + ret = gnutls_x509_name_constraints_init(&nc); + check_for_error(ret); + + ret = gnutls_x509_crt_init(&crt); + check_for_error(ret); + + ret = gnutls_x509_crt_import(crt, &cert, GNUTLS_X509_FMT_PEM); + check_for_error(ret); + + ret = gnutls_x509_crt_get_name_constraints(crt, nc, 0, &crit); + check_for_error(ret); + + if (crit != 0) { + fail("error reading criticality\n"); + } + + i = 0; + do { + ret = gnutls_x509_name_constraints_get_permitted(nc, i++, &type, &name); + + if (ret >= 0 && i == 2) { + if (name.size != 3 || memcmp(name.data, ".eu", 3) != 0) { + fail("error reading 2nd constraint\n"); + } + } + } while(ret == 0); + + if (i-1 != 8) { + fail("Could not read all constraints; read %d, expected %d\n", i-1, 8); + } + + gnutls_x509_name_constraints_deinit(nc); + gnutls_x509_crt_deinit(crt); + + /* 1: test the generation of name constraints */ + + permitted = 0; + excluded = 0; + + ret = gnutls_x509_name_constraints_init(&nc); + check_for_error(ret); + + ret = gnutls_x509_crt_init(&crt); + check_for_error(ret); + + ret = gnutls_x509_crt_import(crt, &cert, GNUTLS_X509_FMT_PEM); + check_for_error(ret); + + permitted++; + ret = gnutls_x509_name_constraints_add_permitted(nc, GNUTLS_SAN_DNSNAME, &name1); + check_for_error(ret); + + excluded++; + ret = gnutls_x509_name_constraints_add_excluded(nc, GNUTLS_SAN_DNSNAME, &name2); + check_for_error(ret); + + excluded++; + ret = gnutls_x509_name_constraints_add_excluded(nc, GNUTLS_SAN_DNSNAME, &name3); + check_for_error(ret); + + permitted++; + ret = gnutls_x509_name_constraints_add_permitted(nc, GNUTLS_SAN_DNSNAME, &name4); + check_for_error(ret); + + excluded++; + ret = gnutls_x509_name_constraints_add_excluded(nc, GNUTLS_SAN_URI, &name3); + check_for_error(ret); + + permitted++; + ret = gnutls_x509_name_constraints_add_permitted(nc, GNUTLS_SAN_RFC822NAME, &mail1); + check_for_error(ret); + + permitted++; + ret = gnutls_x509_name_constraints_add_permitted(nc, GNUTLS_SAN_RFC822NAME, &mail2); + check_for_error(ret); + + permitted++; + ret = gnutls_x509_name_constraints_add_permitted(nc, GNUTLS_SAN_RFC822NAME, &mail3); + check_for_error(ret); + + excluded++; + ret = gnutls_x509_name_constraints_add_excluded(nc, GNUTLS_SAN_RFC822NAME, &mail4); + check_for_error(ret); + + ret = gnutls_x509_crt_set_name_constraints(crt, nc, 1); + check_for_error(ret); + + /* 2: test the reading of the generated constraints */ + + i = 0; + do { + ret = gnutls_x509_name_constraints_get_permitted(nc, i++, &type, &name); + + if (ret >= 0 && i == 1) { + if (name.size != name1.size || memcmp(name.data, name1.data, name1.size) != 0) { + fail("%d: error reading 1st constraint\n", __LINE__); + } + } + } while(ret == 0); + + if (i-1 != permitted) { + fail("Could not read all constraints; read %d, expected %d\n", i-1, permitted); + } + + i = 0; + do { + ret = gnutls_x509_name_constraints_get_excluded(nc, i++, &type, &name); + + if (ret >= 0 && i == 1) { + if (name.size != name2.size || memcmp(name.data, name2.data, name2.size) != 0) { + fail("%d: error reading 1st excluded constraint\n", __LINE__); + } + } + if (ret >= 0 && i == 2) { + if (name.size != name3.size || memcmp(name.data, name3.data, name3.size) != 0) { + fail("%d: error reading 1st excluded constraint\n", __LINE__); + } + } + } while(ret == 0); + + if (i-1 != excluded) { + fail("Could not read all excluded constraints; read %d, expected %d\n", i-1, excluded); + } + + /* 3: test the name constraints check function */ + + /* This name constraints structure doesn't have any excluded GNUTLS_SAN_DN so + * this test should succeed */ + set_name("ASFHAJHjhafjs", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_DN, &name); + check_test_result(ret, NAME_ACCEPTED, &name); + + /* Test e-mails */ + set_name("nmav@redhat.com", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_RFC822NAME, &name); + check_test_result(ret, NAME_ACCEPTED, &name); + + set_name("nmav@radhat.com", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_RFC822NAME, &name); + check_test_result(ret, NAME_REJECTED, &name); + + set_name("nmav@example.com", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_RFC822NAME, &name); + check_test_result(ret, NAME_ACCEPTED, &name); + + set_name("nmav@test.example.net", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_RFC822NAME, &name); + check_test_result(ret, NAME_ACCEPTED, &name); + + set_name("nmav@example.net", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_RFC822NAME, &name); + check_test_result(ret, NAME_REJECTED, &name); + + set_name("nmav@koko.example.net", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_RFC822NAME, &name); + check_test_result(ret, NAME_REJECTED, &name); + + /* This name constraints structure does have an excluded URI so + * this test should fail */ + set_name("http://www.com", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_URI, &name); + check_test_result(ret, NAME_REJECTED, &name); + + set_name("goodexample.com", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_DNSNAME, &name); + check_test_result(ret, NAME_ACCEPTED, &name); + + set_name("good.com", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_DNSNAME, &name); + check_test_result(ret, NAME_ACCEPTED, &name); + + set_name("www.example.com", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_DNSNAME, &name); + check_test_result(ret, NAME_REJECTED, &name); + + set_name("www.example.net", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_DNSNAME, &name); + check_test_result(ret, NAME_REJECTED, &name); + + set_name("www.example.gr", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_DNSNAME, &name); + check_test_result(ret, NAME_ACCEPTED, &name); + + gnutls_x509_name_constraints_deinit(nc); + gnutls_x509_crt_deinit(crt); + + /* 4: corner cases */ + + /* 4a: empty excluded name (works as wildcard) */ + + ret = gnutls_x509_name_constraints_init(&nc); + check_for_error(ret); + + set_name("", &name); + ret = gnutls_x509_name_constraints_add_excluded(nc, GNUTLS_SAN_DNSNAME, &name); + check_for_error(ret); + + set_name("example.net", &name); + ret = gnutls_x509_name_constraints_check(nc, GNUTLS_SAN_DNSNAME, &name); + check_test_result(ret, NAME_REJECTED, &name); + + gnutls_x509_name_constraints_deinit(nc); + + // Test suite end. + + if (debug) + success("Test success.\n"); +} |