mirror of
https://github.com/openssl/openssl.git
synced 2024-12-03 05:41:46 +08:00
176db6dc51
Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/4217)
431 lines
11 KiB
C
431 lines
11 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 <string.h>
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#include <ctype.h>
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#include <limits.h>
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#include <errno.h>
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#include <openssl/crypto.h>
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#include <openssl/evp.h>
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#include <openssl/x509.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <openssl/conf.h>
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#ifndef OPENSSL_NO_ENGINE
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#include <openssl/engine.h>
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#endif
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#include "testutil.h"
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#include "internal/nelem.h"
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#define _UC(c) ((unsigned char)(c))
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static const char *basedomain;
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static const char *CAfile;
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static const char *tlsafile;
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/*
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* Forward declaration, of function that uses internal interfaces, from headers
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* included at the end of this module.
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*/
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static void store_ctx_dane_init(X509_STORE_CTX *, SSL *);
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static int saved_errno;
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static void save_errno(void)
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{
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saved_errno = errno;
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}
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static int restore_errno(void)
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{
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int ret = errno;
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errno = saved_errno;
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return ret;
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}
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static int verify_chain(SSL *ssl, STACK_OF(X509) *chain)
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{
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X509_STORE_CTX *store_ctx = NULL;
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SSL_CTX *ssl_ctx = NULL;
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X509_STORE *store = NULL;
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X509 *cert = NULL;
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int ret = 0;
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int store_ctx_idx = SSL_get_ex_data_X509_STORE_CTX_idx();
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if (!TEST_ptr(store_ctx = X509_STORE_CTX_new())
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|| !TEST_ptr(ssl_ctx = SSL_get_SSL_CTX(ssl))
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|| !TEST_ptr(store = SSL_CTX_get_cert_store(ssl_ctx))
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|| !TEST_ptr(cert = sk_X509_value(chain, 0))
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|| !TEST_true(X509_STORE_CTX_init(store_ctx, store, cert, chain))
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|| !TEST_true(X509_STORE_CTX_set_ex_data(store_ctx, store_ctx_idx,
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ssl)))
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goto end;
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X509_STORE_CTX_set_default(store_ctx,
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SSL_is_server(ssl) ? "ssl_client" : "ssl_server");
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X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(store_ctx),
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SSL_get0_param(ssl));
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store_ctx_dane_init(store_ctx, ssl);
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if (SSL_get_verify_callback(ssl) != NULL)
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X509_STORE_CTX_set_verify_cb(store_ctx, SSL_get_verify_callback(ssl));
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/* Mask "internal failures" (-1) from our return value. */
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if (!TEST_int_ge(ret = X509_verify_cert(store_ctx), 0))
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ret = 0;
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SSL_set_verify_result(ssl, X509_STORE_CTX_get_error(store_ctx));
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X509_STORE_CTX_cleanup(store_ctx);
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end:
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X509_STORE_CTX_free(store_ctx);
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return ret;
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}
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static STACK_OF(X509) *load_chain(BIO *fp, int nelem)
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{
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int count;
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char *name = 0;
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char *header = 0;
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unsigned char *data = 0;
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long len;
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char *errtype = 0; /* if error: cert or pkey? */
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STACK_OF(X509) *chain;
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typedef X509 *(*d2i_X509_t)(X509 **, const unsigned char **, long);
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if (!TEST_ptr(chain = sk_X509_new_null()))
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goto err;
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for (count = 0;
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count < nelem && errtype == 0
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&& PEM_read_bio(fp, &name, &header, &data, &len) == 1;
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++count) {
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if (strcmp(name, PEM_STRING_X509) == 0
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|| strcmp(name, PEM_STRING_X509_TRUSTED) == 0
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|| strcmp(name, PEM_STRING_X509_OLD) == 0) {
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d2i_X509_t d = strcmp(name, PEM_STRING_X509_TRUSTED) != 0
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? d2i_X509_AUX : d2i_X509;
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X509 *cert;
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const unsigned char *p = data;
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if (!TEST_ptr(cert = d(0, &p, len))
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|| !TEST_long_eq(p - data, len)) {
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TEST_info("Certificate parsing error");
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goto err;
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}
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if (!TEST_true(sk_X509_push(chain, cert)))
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goto err;
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} else {
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TEST_info("Unknown chain file object %s", name);
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goto err;
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}
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OPENSSL_free(name);
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OPENSSL_free(header);
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OPENSSL_free(data);
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name = header = NULL;
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data = NULL;
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}
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if (count == nelem) {
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ERR_clear_error();
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return chain;
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}
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err:
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OPENSSL_free(name);
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OPENSSL_free(header);
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OPENSSL_free(data);
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sk_X509_pop_free(chain, X509_free);
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return NULL;
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}
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static char *read_to_eol(BIO *f)
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{
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static char buf[1024];
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int n;
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if (!BIO_gets(f, buf, sizeof(buf)))
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return NULL;
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n = strlen(buf);
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if (buf[n - 1] != '\n') {
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if (n + 1 == sizeof(buf))
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TEST_error("input too long");
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else
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TEST_error("EOF before newline");
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return NULL;
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}
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/* Trim trailing whitespace */
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while (n > 0 && isspace(_UC(buf[n - 1])))
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buf[--n] = '\0';
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return buf;
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}
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/*
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* Hex decoder that tolerates optional whitespace
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*/
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static ossl_ssize_t hexdecode(const char *in, void *result)
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{
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unsigned char **out = (unsigned char **)result;
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unsigned char *ret;
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unsigned char *cp;
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uint8_t byte;
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int nibble = 0;
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if (!TEST_ptr(ret = OPENSSL_malloc(strlen(in) / 2)))
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return -1;
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cp = ret;
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for (byte = 0; *in; ++in) {
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int x;
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if (isspace(_UC(*in)))
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continue;
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x = OPENSSL_hexchar2int(*in);
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if (x < 0) {
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OPENSSL_free(ret);
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return 0;
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}
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byte |= (char)x;
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if ((nibble ^= 1) == 0) {
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*cp++ = byte;
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byte = 0;
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} else {
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byte <<= 4;
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}
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}
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if (nibble != 0) {
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OPENSSL_free(ret);
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return 0;
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}
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return cp - (*out = ret);
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}
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static ossl_ssize_t checked_uint8(const char *in, void *out)
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{
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uint8_t *result = (uint8_t *)out;
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const char *cp = in;
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char *endp;
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long v;
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int e;
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save_errno();
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v = strtol(cp, &endp, 10);
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e = restore_errno();
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if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
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endp == cp || !isspace(_UC(*endp)) ||
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v != (*(uint8_t *)result = (uint8_t) v)) {
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return -1;
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}
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for (cp = endp; isspace(_UC(*cp)); ++cp)
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continue;
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return cp - in;
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}
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struct tlsa_field {
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void *var;
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const char *name;
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ossl_ssize_t (*parser)(const char *, void *);
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};
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static int tlsa_import_rr(SSL *ssl, const char *rrdata)
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{
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static uint8_t usage;
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static uint8_t selector;
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static uint8_t mtype;
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static unsigned char *data = NULL;
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static struct tlsa_field tlsa_fields[] = {
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{ &usage, "usage", checked_uint8 },
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{ &selector, "selector", checked_uint8 },
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{ &mtype, "mtype", checked_uint8 },
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{ &data, "data", hexdecode },
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{ NULL, }
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};
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int ret;
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struct tlsa_field *f;
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const char *cp = rrdata;
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ossl_ssize_t len = 0;
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for (f = tlsa_fields; f->var; ++f) {
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if ((len = f->parser(cp += len, f->var)) <= 0) {
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TEST_info("bad TLSA %s field in: %s", f->name, rrdata);
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return 0;
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}
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}
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ret = SSL_dane_tlsa_add(ssl, usage, selector, mtype, data, len);
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OPENSSL_free(data);
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if (ret == 0) {
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TEST_info("unusable TLSA rrdata: %s", rrdata);
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return 0;
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}
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if (ret < 0) {
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TEST_info("error loading TLSA rrdata: %s", rrdata);
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return 0;
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}
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return ret;
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}
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static int allws(const char *cp)
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{
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while (*cp)
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if (!isspace(_UC(*cp++)))
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return 0;
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return 1;
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}
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static int test_tlsafile(SSL_CTX *ctx, const char *base_name,
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BIO *f, const char *path)
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{
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char *line;
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int testno = 0;
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int ret = 1;
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SSL *ssl;
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while (ret > 0 && (line = read_to_eol(f)) != NULL) {
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STACK_OF(X509) *chain;
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int ntlsa;
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int ncert;
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int noncheck;
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int want;
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int want_depth;
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int off;
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int i;
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int ok;
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int err;
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int mdpth;
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if (*line == '\0' || *line == '#')
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continue;
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++testno;
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if (sscanf(line, "%d %d %d %d %d%n",
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&ntlsa, &ncert, &noncheck, &want, &want_depth, &off) != 5
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|| !allws(line + off)) {
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TEST_error("Malformed line for test %d", testno);
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return 0;
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}
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if (!TEST_ptr(ssl = SSL_new(ctx)))
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return 0;
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SSL_set_connect_state(ssl);
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if (SSL_dane_enable(ssl, base_name) <= 0) {
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SSL_free(ssl);
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return 0;
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}
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if (noncheck)
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SSL_dane_set_flags(ssl, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
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for (i = 0; i < ntlsa; ++i) {
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if ((line = read_to_eol(f)) == NULL || !tlsa_import_rr(ssl, line)) {
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SSL_free(ssl);
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return 0;
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}
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}
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/* Don't report old news */
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ERR_clear_error();
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if (!TEST_ptr(chain = load_chain(f, ncert))) {
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SSL_free(ssl);
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return 0;
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}
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ok = verify_chain(ssl, chain);
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sk_X509_pop_free(chain, X509_free);
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err = SSL_get_verify_result(ssl);
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/*
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* Peek under the hood, normally TLSA match data is hidden when
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* verification fails, we can obtain any suppressed data by setting the
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* verification result to X509_V_OK before looking.
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*/
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SSL_set_verify_result(ssl, X509_V_OK);
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mdpth = SSL_get0_dane_authority(ssl, NULL, NULL);
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/* Not needed any more, but lead by example and put the error back. */
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SSL_set_verify_result(ssl, err);
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SSL_free(ssl);
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if (!TEST_int_eq(err, want)) {
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if (want == X509_V_OK)
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TEST_info("Verification failure in test %d: %d=%s",
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testno, err, X509_verify_cert_error_string(err));
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else
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TEST_info("Unexpected error in test %d", testno);
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ret = 0;
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continue;
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}
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if (!TEST_false(want == 0 && ok == 0)) {
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TEST_info("Verification failure in test %d: ok=0", testno);
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ret = 0;
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continue;
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}
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if (!TEST_int_eq(mdpth, want_depth)) {
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TEST_info("In test test %d", testno);
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ret = 0;
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}
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}
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ERR_clear_error();
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return ret;
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}
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static int run_tlsatest(void)
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{
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SSL_CTX *ctx = NULL;
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BIO *f = NULL;
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int ret = 0;
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if (!TEST_ptr(f = BIO_new_file(tlsafile, "r"))
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|| !TEST_ptr(ctx = SSL_CTX_new(TLS_client_method()))
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|| !TEST_int_gt(SSL_CTX_dane_enable(ctx), 0)
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|| !TEST_true(SSL_CTX_load_verify_locations(ctx, CAfile, NULL))
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|| !TEST_int_gt(SSL_CTX_dane_mtype_set(ctx, EVP_sha512(), 2, 1),
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0)
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|| !TEST_int_gt(SSL_CTX_dane_mtype_set(ctx, EVP_sha256(), 1, 2),
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0)
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|| !TEST_int_gt(test_tlsafile(ctx, basedomain, f, tlsafile), 0))
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goto end;
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ret = 1;
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end:
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BIO_free(f);
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SSL_CTX_free(ctx);
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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(basedomain = test_get_argument(0))
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|| !TEST_ptr(CAfile = test_get_argument(1))
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|| !TEST_ptr(tlsafile = test_get_argument(2))) {
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TEST_error("Usage error: danetest basedomain CAfile tlsafile");
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return 0;
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}
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ADD_TEST(run_tlsatest);
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return 1;
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}
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#include "internal/dane.h"
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static void store_ctx_dane_init(X509_STORE_CTX *store_ctx, SSL *ssl)
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{
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X509_STORE_CTX_set0_dane(store_ctx, SSL_get0_dane(ssl));
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}
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