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ad887416f1
that needed test_main now works using the same infrastructure as tests that used
register_tests.
This meant:
* renaming register_tests to setup_tests and giving it a success/failure return.
* renaming the init_test function to setup_test_framework.
* renaming the finish_test function to pulldown_test_framework.
* adding a user provided global_init function that runs before the test frame
work is initialised. It returns a failure indication that stops the stest.
* adding helper functions that permit tests to access their command line args.
* spliting the BIO initialisation and finalisation out from the test setup and
teardown.
* hiding some of the now test internal functions.
* fix the comments in testutil.h
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3953)
153 lines
3.7 KiB
C
153 lines
3.7 KiB
C
/*
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* Copyright 2015-2017 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 <stdio.h>
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#include <openssl/crypto.h>
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#include <openssl/bio.h>
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#include <openssl/x509.h>
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#include <openssl/pem.h>
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#include <openssl/err.h>
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#include "testutil.h"
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static const char *roots_f;
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static const char *untrusted_f;
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static const char *bad_f;
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static STACK_OF(X509) *load_certs_from_file(const char *filename)
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{
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STACK_OF(X509) *certs;
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BIO *bio;
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X509 *x;
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bio = BIO_new_file(filename, "r");
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if (bio == NULL) {
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return NULL;
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}
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certs = sk_X509_new_null();
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if (certs == NULL) {
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BIO_free(bio);
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return NULL;
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}
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ERR_set_mark();
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do {
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x = PEM_read_bio_X509(bio, NULL, 0, NULL);
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if (x != NULL && !sk_X509_push(certs, x)) {
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sk_X509_pop_free(certs, X509_free);
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BIO_free(bio);
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return NULL;
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} else if (x == NULL) {
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/*
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* We probably just ran out of certs, so ignore any errors
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* generated
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*/
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ERR_pop_to_mark();
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}
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} while (x != NULL);
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BIO_free(bio);
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return certs;
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}
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/*
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* Test for CVE-2015-1793 (Alternate Chains Certificate Forgery)
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*
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* Chain is as follows:
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*
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* rootCA (self-signed)
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* |
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* interCA
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* |
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* subinterCA subinterCA (self-signed)
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* | |
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* leaf ------------------
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* |
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* bad
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*
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* rootCA, interCA, subinterCA, subinterCA (ss) all have CA=TRUE
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* leaf and bad have CA=FALSE
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*
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* subinterCA and subinterCA (ss) have the same subject name and keys
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*
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* interCA (but not rootCA) and subinterCA (ss) are in the trusted store
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* (roots.pem)
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* leaf and subinterCA are in the untrusted list (untrusted.pem)
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* bad is the certificate being verified (bad.pem)
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*
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* Versions vulnerable to CVE-2015-1793 will fail to detect that leaf has
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* CA=FALSE, and will therefore incorrectly verify bad
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*
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*/
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static int test_alt_chains_cert_forgery(void)
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{
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int ret = 0;
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int i;
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X509 *x = NULL;
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STACK_OF(X509) *untrusted = NULL;
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BIO *bio = NULL;
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X509_STORE_CTX *sctx = NULL;
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X509_STORE *store = NULL;
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X509_LOOKUP *lookup = NULL;
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store = X509_STORE_new();
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if (store == NULL)
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goto err;
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lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
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if (lookup == NULL)
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goto err;
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if (!X509_LOOKUP_load_file(lookup, roots_f, X509_FILETYPE_PEM))
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goto err;
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untrusted = load_certs_from_file(untrusted_f);
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if ((bio = BIO_new_file(bad_f, "r")) == NULL)
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goto err;
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if ((x = PEM_read_bio_X509(bio, NULL, 0, NULL)) == NULL)
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goto err;
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sctx = X509_STORE_CTX_new();
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if (sctx == NULL)
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goto err;
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if (!X509_STORE_CTX_init(sctx, store, x, untrusted))
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goto err;
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i = X509_verify_cert(sctx);
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if (i == 0 && X509_STORE_CTX_get_error(sctx) == X509_V_ERR_INVALID_CA) {
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/* This is the result we were expecting: Test passed */
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ret = 1;
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}
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err:
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X509_STORE_CTX_free(sctx);
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X509_free(x);
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BIO_free(bio);
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sk_X509_pop_free(untrusted, X509_free);
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X509_STORE_free(store);
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return ret;
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}
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int setup_tests(void)
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{
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if (!TEST_ptr(roots_f = test_get_argument(0))
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|| !TEST_ptr(untrusted_f = test_get_argument(1))
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|| !TEST_ptr(bad_f = test_get_argument(2))) {
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TEST_error("usage: verify_extra_test roots.pem untrusted.pem bad.pem\n");
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return 0;
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}
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ADD_TEST(test_alt_chains_cert_forgery);
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return 1;
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}
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