mirror of
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synced 2024-12-03 05:41:46 +08:00
b9d1ad3203
fabs(3m) is customarily inlined, but it's not, one has to link with -lm. Since fabs(3m) is the only reference, it makes more sense to avoid it. Reviewed-by: Rich Salz <rsalz@openssl.org>
555 lines
16 KiB
C
555 lines
16 KiB
C
/*
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* Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <openssl/ct.h>
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#include <openssl/err.h>
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#include <openssl/pem.h>
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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#include "testutil.h"
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#include <openssl/crypto.h>
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#ifndef OPENSSL_NO_CT
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/* Used when declaring buffers to read text files into */
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# define CT_TEST_MAX_FILE_SIZE 8096
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static char *certs_dir = NULL;
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static char *ct_dir = NULL;
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typedef struct ct_test_fixture {
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const char *test_case_name;
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/* The current time in milliseconds */
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uint64_t epoch_time_in_ms;
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/* The CT log store to use during tests */
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CTLOG_STORE* ctlog_store;
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/* Set the following to test handling of SCTs in X509 certificates */
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const char *certs_dir;
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char *certificate_file;
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char *issuer_file;
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/* Expected number of SCTs */
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int expected_sct_count;
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/* Expected number of valid SCTS */
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int expected_valid_sct_count;
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/* Set the following to test handling of SCTs in TLS format */
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const unsigned char *tls_sct_list;
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size_t tls_sct_list_len;
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STACK_OF(SCT) *sct_list;
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/*
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* A file to load the expected SCT text from.
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* This text will be compared to the actual text output during the test.
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* A maximum of |CT_TEST_MAX_FILE_SIZE| bytes will be read of this file.
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*/
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const char *sct_dir;
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const char *sct_text_file;
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/* Whether to test the validity of the SCT(s) */
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int test_validity;
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} CT_TEST_FIXTURE;
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static CT_TEST_FIXTURE *set_up(const char *const test_case_name)
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{
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CT_TEST_FIXTURE *fixture = NULL;
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if (!TEST_ptr(fixture = OPENSSL_zalloc(sizeof(*fixture))))
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goto end;
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fixture->test_case_name = test_case_name;
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fixture->epoch_time_in_ms = 1473269626000; /* Sep 7 17:33:46 2016 GMT */
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if (!TEST_ptr(fixture->ctlog_store = CTLOG_STORE_new())
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|| !TEST_int_eq(
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CTLOG_STORE_load_default_file(fixture->ctlog_store), 1))
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goto end;
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return fixture;
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end:
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if (fixture != NULL)
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CTLOG_STORE_free(fixture->ctlog_store);
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OPENSSL_free(fixture);
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TEST_error("Failed to setup");
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return NULL;
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}
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static void tear_down(CT_TEST_FIXTURE *fixture)
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{
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if (fixture != NULL) {
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CTLOG_STORE_free(fixture->ctlog_store);
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SCT_LIST_free(fixture->sct_list);
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}
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OPENSSL_free(fixture);
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}
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static char *mk_file_path(const char *dir, const char *file)
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{
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# ifndef OPENSSL_SYS_VMS
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const char *sep = "/";
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# else
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const char *sep = "";
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# endif
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size_t len = strlen(dir) + strlen(sep) + strlen(file) + 1;
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char *full_file = OPENSSL_zalloc(len);
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if (full_file != NULL) {
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OPENSSL_strlcpy(full_file, dir, len);
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OPENSSL_strlcat(full_file, sep, len);
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OPENSSL_strlcat(full_file, file, len);
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}
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return full_file;
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}
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static X509 *load_pem_cert(const char *dir, const char *file)
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{
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X509 *cert = NULL;
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char *file_path = mk_file_path(dir, file);
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if (file_path != NULL) {
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BIO *cert_io = BIO_new_file(file_path, "r");
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if (cert_io != NULL)
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cert = PEM_read_bio_X509(cert_io, NULL, NULL, NULL);
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BIO_free(cert_io);
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}
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OPENSSL_free(file_path);
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return cert;
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}
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static int read_text_file(const char *dir, const char *file,
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char *buffer, int buffer_length)
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{
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int len = -1;
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char *file_path = mk_file_path(dir, file);
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if (file_path != NULL) {
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BIO *file_io = BIO_new_file(file_path, "r");
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if (file_io != NULL)
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len = BIO_read(file_io, buffer, buffer_length);
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BIO_free(file_io);
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}
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OPENSSL_free(file_path);
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return len;
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}
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static int compare_sct_list_printout(STACK_OF(SCT) *sct,
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const char *expected_output)
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{
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BIO *text_buffer = NULL;
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char *actual_output = NULL;
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int result = 0;
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if (!TEST_ptr(text_buffer = BIO_new(BIO_s_mem())))
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goto end;
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SCT_LIST_print(sct, text_buffer, 0, "\n", NULL);
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/* Append \0 because we're about to use the buffer contents as a string. */
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if (!TEST_true(BIO_write(text_buffer, "\0", 1)))
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goto end;
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BIO_get_mem_data(text_buffer, &actual_output);
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if (!TEST_str_eq(actual_output, expected_output))
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goto end;
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result = 1;
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end:
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BIO_free(text_buffer);
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return result;
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}
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static int compare_extension_printout(X509_EXTENSION *extension,
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const char *expected_output)
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{
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BIO *text_buffer = NULL;
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char *actual_output = NULL;
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int result = 0;
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if (!TEST_ptr(text_buffer = BIO_new(BIO_s_mem()))
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|| !TEST_true(X509V3_EXT_print(text_buffer, extension,
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X509V3_EXT_DEFAULT, 0)))
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goto end;
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/* Append \0 because we're about to use the buffer contents as a string. */
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if (!TEST_true(BIO_write(text_buffer, "\0", 1)))
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goto end;
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BIO_get_mem_data(text_buffer, &actual_output);
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if (!TEST_str_eq(actual_output, expected_output))
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goto end;
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result = 1;
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end:
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BIO_free(text_buffer);
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return result;
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}
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static int assert_validity(CT_TEST_FIXTURE *fixture, STACK_OF(SCT) *scts,
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CT_POLICY_EVAL_CTX *policy_ctx)
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{
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int invalid_sct_count = 0;
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int valid_sct_count = 0;
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int i;
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if (!TEST_int_ge(SCT_LIST_validate(scts, policy_ctx), 0))
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return 0;
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for (i = 0; i < sk_SCT_num(scts); ++i) {
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SCT *sct_i = sk_SCT_value(scts, i);
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switch (SCT_get_validation_status(sct_i)) {
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case SCT_VALIDATION_STATUS_VALID:
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++valid_sct_count;
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break;
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case SCT_VALIDATION_STATUS_INVALID:
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++invalid_sct_count;
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break;
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case SCT_VALIDATION_STATUS_NOT_SET:
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case SCT_VALIDATION_STATUS_UNKNOWN_LOG:
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case SCT_VALIDATION_STATUS_UNVERIFIED:
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case SCT_VALIDATION_STATUS_UNKNOWN_VERSION:
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/* Ignore other validation statuses. */
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break;
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}
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}
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if (!TEST_int_eq(valid_sct_count, fixture->expected_valid_sct_count)) {
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int unverified_sct_count = sk_SCT_num(scts) -
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invalid_sct_count - valid_sct_count;
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TEST_info("%d SCTs failed, %d SCTs unverified",
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invalid_sct_count, unverified_sct_count);
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return 0;
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}
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return 1;
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}
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static int execute_cert_test(CT_TEST_FIXTURE *fixture)
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{
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int success = 0;
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X509 *cert = NULL, *issuer = NULL;
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STACK_OF(SCT) *scts = NULL;
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SCT *sct = NULL;
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char expected_sct_text[CT_TEST_MAX_FILE_SIZE];
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int sct_text_len = 0;
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unsigned char *tls_sct_list = NULL;
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size_t tls_sct_list_len = 0;
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CT_POLICY_EVAL_CTX *ct_policy_ctx = CT_POLICY_EVAL_CTX_new();
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if (fixture->sct_text_file != NULL) {
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sct_text_len = read_text_file(fixture->sct_dir, fixture->sct_text_file,
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expected_sct_text,
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CT_TEST_MAX_FILE_SIZE - 1);
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if (!TEST_int_ge(sct_text_len, 0))
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goto end;
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expected_sct_text[sct_text_len] = '\0';
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}
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CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(
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ct_policy_ctx, fixture->ctlog_store);
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CT_POLICY_EVAL_CTX_set_time(ct_policy_ctx, fixture->epoch_time_in_ms);
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if (fixture->certificate_file != NULL) {
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int sct_extension_index;
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int i;
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X509_EXTENSION *sct_extension = NULL;
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if (!TEST_ptr(cert = load_pem_cert(fixture->certs_dir,
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fixture->certificate_file)))
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goto end;
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CT_POLICY_EVAL_CTX_set1_cert(ct_policy_ctx, cert);
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if (fixture->issuer_file != NULL) {
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if (!TEST_ptr(issuer = load_pem_cert(fixture->certs_dir,
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fixture->issuer_file)))
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goto end;
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CT_POLICY_EVAL_CTX_set1_issuer(ct_policy_ctx, issuer);
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}
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sct_extension_index =
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X509_get_ext_by_NID(cert, NID_ct_precert_scts, -1);
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sct_extension = X509_get_ext(cert, sct_extension_index);
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if (fixture->expected_sct_count > 0) {
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if (!TEST_ptr(sct_extension))
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goto end;
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if (fixture->sct_text_file
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&& !compare_extension_printout(sct_extension,
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expected_sct_text))
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goto end;
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scts = X509V3_EXT_d2i(sct_extension);
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for (i = 0; i < sk_SCT_num(scts); ++i) {
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SCT *sct_i = sk_SCT_value(scts, i);
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if (!TEST_int_eq(SCT_get_source(sct_i),
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SCT_SOURCE_X509V3_EXTENSION)) {
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goto end;
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}
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}
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if (fixture->test_validity) {
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if (!assert_validity(fixture, scts, ct_policy_ctx))
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goto end;
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}
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} else if (!TEST_ptr_null(sct_extension)) {
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goto end;
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}
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}
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if (fixture->tls_sct_list != NULL) {
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const unsigned char *p = fixture->tls_sct_list;
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if (!TEST_ptr(o2i_SCT_LIST(&scts, &p, fixture->tls_sct_list_len)))
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goto end;
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if (fixture->test_validity && cert != NULL) {
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if (!assert_validity(fixture, scts, ct_policy_ctx))
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goto end;
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}
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if (fixture->sct_text_file
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&& !compare_sct_list_printout(scts, expected_sct_text)) {
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goto end;
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}
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tls_sct_list_len = i2o_SCT_LIST(scts, &tls_sct_list);
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if (!TEST_mem_eq(fixture->tls_sct_list, fixture->tls_sct_list_len,
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tls_sct_list, tls_sct_list_len))
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goto end;
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}
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success = 1;
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end:
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X509_free(cert);
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X509_free(issuer);
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SCT_LIST_free(scts);
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SCT_free(sct);
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CT_POLICY_EVAL_CTX_free(ct_policy_ctx);
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OPENSSL_free(tls_sct_list);
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return success;
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}
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# define SETUP_CT_TEST_FIXTURE() SETUP_TEST_FIXTURE(CT_TEST_FIXTURE, set_up)
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# define EXECUTE_CT_TEST() EXECUTE_TEST(execute_cert_test, tear_down)
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static int test_no_scts_in_certificate(void)
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{
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SETUP_CT_TEST_FIXTURE();
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if (fixture == NULL)
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return 0;
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fixture->certs_dir = certs_dir;
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fixture->certificate_file = "leaf.pem";
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fixture->issuer_file = "subinterCA.pem";
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fixture->expected_sct_count = 0;
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EXECUTE_CT_TEST();
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return result;
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}
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static int test_one_sct_in_certificate(void)
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{
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SETUP_CT_TEST_FIXTURE();
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if (fixture == NULL)
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return 0;
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fixture->certs_dir = certs_dir;
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fixture->certificate_file = "embeddedSCTs1.pem";
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fixture->issuer_file = "embeddedSCTs1_issuer.pem";
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fixture->expected_sct_count = 1;
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fixture->sct_dir = certs_dir;
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fixture->sct_text_file = "embeddedSCTs1.sct";
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EXECUTE_CT_TEST();
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return result;
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}
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static int test_multiple_scts_in_certificate(void)
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{
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SETUP_CT_TEST_FIXTURE();
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if (fixture == NULL)
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return 0;
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fixture->certs_dir = certs_dir;
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fixture->certificate_file = "embeddedSCTs3.pem";
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fixture->issuer_file = "embeddedSCTs3_issuer.pem";
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fixture->expected_sct_count = 3;
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fixture->sct_dir = certs_dir;
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fixture->sct_text_file = "embeddedSCTs3.sct";
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EXECUTE_CT_TEST();
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return result;
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}
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static int test_verify_one_sct(void)
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{
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SETUP_CT_TEST_FIXTURE();
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if (fixture == NULL)
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return 0;
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fixture->certs_dir = certs_dir;
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fixture->certificate_file = "embeddedSCTs1.pem";
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fixture->issuer_file = "embeddedSCTs1_issuer.pem";
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fixture->expected_sct_count = fixture->expected_valid_sct_count = 1;
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fixture->test_validity = 1;
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EXECUTE_CT_TEST();
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return result;
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}
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static int test_verify_multiple_scts(void)
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{
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SETUP_CT_TEST_FIXTURE();
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if (fixture == NULL)
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return 0;
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fixture->certs_dir = certs_dir;
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fixture->certificate_file = "embeddedSCTs3.pem";
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fixture->issuer_file = "embeddedSCTs3_issuer.pem";
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fixture->expected_sct_count = fixture->expected_valid_sct_count = 3;
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fixture->test_validity = 1;
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EXECUTE_CT_TEST();
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return result;
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}
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static int test_verify_fails_for_future_sct(void)
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{
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SETUP_CT_TEST_FIXTURE();
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if (fixture == NULL)
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return 0;
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fixture->epoch_time_in_ms = 1365094800000; /* Apr 4 17:00:00 2013 GMT */
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fixture->certs_dir = certs_dir;
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fixture->certificate_file = "embeddedSCTs1.pem";
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fixture->issuer_file = "embeddedSCTs1_issuer.pem";
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fixture->expected_sct_count = 1;
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fixture->expected_valid_sct_count = 0;
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fixture->test_validity = 1;
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EXECUTE_CT_TEST();
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return result;
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}
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static int test_decode_tls_sct(void)
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{
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const unsigned char tls_sct_list[] = "\x00\x78" /* length of list */
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"\x00\x76"
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"\x00" /* version */
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/* log ID */
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"\xDF\x1C\x2E\xC1\x15\x00\x94\x52\x47\xA9\x61\x68\x32\x5D\xDC\x5C\x79"
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"\x59\xE8\xF7\xC6\xD3\x88\xFC\x00\x2E\x0B\xBD\x3F\x74\xD7\x64"
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"\x00\x00\x01\x3D\xDB\x27\xDF\x93" /* timestamp */
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"\x00\x00" /* extensions length */
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"" /* extensions */
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"\x04\x03" /* hash and signature algorithms */
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"\x00\x47" /* signature length */
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/* signature */
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"\x30\x45\x02\x20\x48\x2F\x67\x51\xAF\x35\xDB\xA6\x54\x36\xBE\x1F\xD6"
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"\x64\x0F\x3D\xBF\x9A\x41\x42\x94\x95\x92\x45\x30\x28\x8F\xA3\xE5\xE2"
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"\x3E\x06\x02\x21\x00\xE4\xED\xC0\xDB\x3A\xC5\x72\xB1\xE2\xF5\xE8\xAB"
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"\x6A\x68\x06\x53\x98\x7D\xCF\x41\x02\x7D\xFE\xFF\xA1\x05\x51\x9D\x89"
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"\xED\xBF\x08";
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SETUP_CT_TEST_FIXTURE();
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if (fixture == NULL)
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return 0;
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fixture->tls_sct_list = tls_sct_list;
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fixture->tls_sct_list_len = 0x7a;
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fixture->sct_dir = ct_dir;
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fixture->sct_text_file = "tls1.sct";
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EXECUTE_CT_TEST();
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return result;
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}
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static int test_encode_tls_sct(void)
|
|
{
|
|
const char log_id[] = "3xwuwRUAlFJHqWFoMl3cXHlZ6PfG04j8AC4LvT9012Q=";
|
|
const uint64_t timestamp = 1;
|
|
const char extensions[] = "";
|
|
const char signature[] = "BAMARzBAMiBIL2dRrzXbplQ2vh/WZA89v5pBQpSVkkUwKI+j5"
|
|
"eI+BgIhAOTtwNs6xXKx4vXoq2poBlOYfc9BAn3+/6EFUZ2J7b8I";
|
|
SCT *sct = NULL;
|
|
|
|
SETUP_CT_TEST_FIXTURE();
|
|
if (fixture == NULL)
|
|
return 0;
|
|
|
|
fixture->sct_list = sk_SCT_new_null();
|
|
if (!TEST_ptr(sct = SCT_new_from_base64(SCT_VERSION_V1, log_id,
|
|
CT_LOG_ENTRY_TYPE_X509, timestamp,
|
|
extensions, signature)))
|
|
|
|
return 0;
|
|
|
|
sk_SCT_push(fixture->sct_list, sct);
|
|
fixture->sct_dir = ct_dir;
|
|
fixture->sct_text_file = "tls1.sct";
|
|
EXECUTE_CT_TEST();
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* Tests that the CT_POLICY_EVAL_CTX default time is approximately now.
|
|
* Allow +-10 minutes, as it may compensate for clock skew.
|
|
*/
|
|
static int test_default_ct_policy_eval_ctx_time_is_now(void)
|
|
{
|
|
int success = 0;
|
|
CT_POLICY_EVAL_CTX *ct_policy_ctx = CT_POLICY_EVAL_CTX_new();
|
|
const time_t default_time = CT_POLICY_EVAL_CTX_get_time(ct_policy_ctx) /
|
|
1000;
|
|
const time_t time_tolerance = 600; /* 10 minutes */
|
|
|
|
if (!TEST_time_t_le(abs((int)difftime(time(NULL), default_time)),
|
|
time_tolerance))
|
|
goto end;
|
|
|
|
success = 1;
|
|
end:
|
|
CT_POLICY_EVAL_CTX_free(ct_policy_ctx);
|
|
return success;
|
|
}
|
|
|
|
static int test_ctlog_from_base64(void)
|
|
{
|
|
CTLOG *ctlogp = NULL;
|
|
const char notb64[] = "\01\02\03\04";
|
|
const char pad[] = "====";
|
|
const char name[] = "name";
|
|
|
|
/* We expect these to both fail! */
|
|
if (!TEST_true(!CTLOG_new_from_base64(&ctlogp, notb64, name))
|
|
|| !TEST_true(!CTLOG_new_from_base64(&ctlogp, pad, name)))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
int setup_tests(void)
|
|
{
|
|
#ifndef OPENSSL_NO_CT
|
|
if ((ct_dir = getenv("CT_DIR")) == NULL)
|
|
ct_dir = "ct";
|
|
if ((certs_dir = getenv("CERTS_DIR")) == NULL)
|
|
certs_dir = "certs";
|
|
|
|
ADD_TEST(test_no_scts_in_certificate);
|
|
ADD_TEST(test_one_sct_in_certificate);
|
|
ADD_TEST(test_multiple_scts_in_certificate);
|
|
ADD_TEST(test_verify_one_sct);
|
|
ADD_TEST(test_verify_multiple_scts);
|
|
ADD_TEST(test_verify_fails_for_future_sct);
|
|
ADD_TEST(test_decode_tls_sct);
|
|
ADD_TEST(test_encode_tls_sct);
|
|
ADD_TEST(test_default_ct_policy_eval_ctx_time_is_now);
|
|
ADD_TEST(test_ctlog_from_base64);
|
|
#else
|
|
printf("No CT support\n");
|
|
#endif
|
|
return 1;
|
|
}
|