2 * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
16 #include <openssl/crypto.h>
17 #include <openssl/evp.h>
18 #include <openssl/x509.h>
19 #include <openssl/ssl.h>
20 #include <openssl/err.h>
21 #include <openssl/conf.h>
22 #ifndef OPENSSL_NO_ENGINE
23 # include <openssl/engine.h>
27 #include "internal/nelem.h"
29 #define _UC(c) ((unsigned char)(c))
31 static const char *basedomain
;
32 static const char *CAfile
;
33 static const char *tlsafile
;
36 * Forward declaration, of function that uses internal interfaces, from headers
37 * included at the end of this module.
39 static void store_ctx_dane_init(X509_STORE_CTX
*, SSL
*);
41 static int saved_errno
;
43 static void save_errno(void)
48 static int restore_errno(void)
55 static int verify_chain(SSL
*ssl
, STACK_OF(X509
) *chain
)
57 X509_STORE_CTX
*store_ctx
= NULL
;
58 SSL_CTX
*ssl_ctx
= NULL
;
59 X509_STORE
*store
= NULL
;
61 int store_ctx_idx
= SSL_get_ex_data_X509_STORE_CTX_idx();
63 if (!TEST_ptr(store_ctx
= X509_STORE_CTX_new())
64 || !TEST_ptr(ssl_ctx
= SSL_get_SSL_CTX(ssl
))
65 || !TEST_ptr(store
= SSL_CTX_get_cert_store(ssl_ctx
))
66 || !TEST_true(X509_STORE_CTX_init(store_ctx
, store
, NULL
, chain
))
67 || !TEST_true(X509_STORE_CTX_set_ex_data(store_ctx
, store_ctx_idx
,
71 X509_STORE_CTX_set_default(store_ctx
, SSL_is_server(ssl
)
72 ? "ssl_client" : "ssl_server");
73 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(store_ctx
),
75 store_ctx_dane_init(store_ctx
, ssl
);
77 if (SSL_get_verify_callback(ssl
) != NULL
)
78 X509_STORE_CTX_set_verify_cb(store_ctx
, SSL_get_verify_callback(ssl
));
80 /* Mask "internal failures" (-1) from our return value. */
81 if (!TEST_int_ge(ret
= X509_STORE_CTX_verify(store_ctx
), 0))
84 SSL_set_verify_result(ssl
, X509_STORE_CTX_get_error(store_ctx
));
87 X509_STORE_CTX_free(store_ctx
);
91 static STACK_OF(X509
) *load_chain(BIO
*fp
, int nelem
)
96 unsigned char *data
= 0;
98 char *errtype
= 0; /* if error: cert or pkey? */
99 STACK_OF(X509
) *chain
;
100 typedef X509
*(*d2i_X509_t
)(X509
**, const unsigned char **, long);
102 if (!TEST_ptr(chain
= sk_X509_new_null()))
106 count
< nelem
&& errtype
== 0
107 && PEM_read_bio(fp
, &name
, &header
, &data
, &len
) == 1;
109 if (strcmp(name
, PEM_STRING_X509
) == 0
110 || strcmp(name
, PEM_STRING_X509_TRUSTED
) == 0
111 || strcmp(name
, PEM_STRING_X509_OLD
) == 0) {
112 d2i_X509_t d
= strcmp(name
, PEM_STRING_X509_TRUSTED
) != 0
113 ? d2i_X509_AUX
: d2i_X509
;
115 const unsigned char *p
= data
;
117 if (!TEST_ptr(cert
= d(0, &p
, len
))
118 || !TEST_long_eq(p
- data
, len
)) {
119 TEST_info("Certificate parsing error");
123 if (!TEST_true(sk_X509_push(chain
, cert
)))
126 TEST_info("Unknown chain file object %s", name
);
131 OPENSSL_free(header
);
133 name
= header
= NULL
;
137 if (count
== nelem
) {
144 OPENSSL_free(header
);
146 OSSL_STACK_OF_X509_free(chain
);
150 static char *read_to_eol(BIO
*f
)
152 static char buf
[4096];
155 if (BIO_gets(f
, buf
, sizeof(buf
)) <= 0)
159 if (buf
[n
- 1] != '\n') {
160 if (n
+ 1 == sizeof(buf
))
161 TEST_error("input too long");
163 TEST_error("EOF before newline");
167 /* Trim trailing whitespace */
168 while (n
> 0 && isspace(_UC(buf
[n
- 1])))
175 * Hex decoder that tolerates optional whitespace
177 static ossl_ssize_t
hexdecode(const char *in
, void *result
)
179 unsigned char **out
= (unsigned char **)result
;
185 if (!TEST_ptr(ret
= OPENSSL_malloc(strlen(in
) / 2)))
189 for (byte
= 0; *in
; ++in
) {
192 if (isspace(_UC(*in
)))
194 x
= OPENSSL_hexchar2int(*in
);
200 if ((nibble
^= 1) == 0) {
212 return cp
- (*out
= ret
);
215 static ossl_ssize_t
checked_uint8(const char *in
, void *out
)
217 uint8_t *result
= (uint8_t *)out
;
224 v
= strtol(cp
, &endp
, 10);
227 if (((v
== LONG_MIN
|| v
== LONG_MAX
) && e
== ERANGE
) ||
228 endp
== cp
|| !isspace(_UC(*endp
)) ||
229 v
!= (*(uint8_t *)result
= (uint8_t) v
)) {
232 for (cp
= endp
; isspace(_UC(*cp
)); ++cp
)
240 ossl_ssize_t (*parser
)(const char *, void *);
243 static int tlsa_import_rr(SSL
*ssl
, const char *rrdata
)
245 static uint8_t usage
;
246 static uint8_t selector
;
247 static uint8_t mtype
;
248 static unsigned char *data
= NULL
;
249 static struct tlsa_field tlsa_fields
[] = {
250 { &usage
, "usage", checked_uint8
},
251 { &selector
, "selector", checked_uint8
},
252 { &mtype
, "mtype", checked_uint8
},
253 { &data
, "data", hexdecode
},
257 struct tlsa_field
*f
;
258 const char *cp
= rrdata
;
259 ossl_ssize_t len
= 0;
261 for (f
= tlsa_fields
; f
->var
; ++f
) {
262 if ((len
= f
->parser(cp
+= len
, f
->var
)) <= 0) {
263 TEST_info("bad TLSA %s field in: %s", f
->name
, rrdata
);
268 ret
= SSL_dane_tlsa_add(ssl
, usage
, selector
, mtype
, data
, len
);
271 TEST_info("unusable TLSA rrdata: %s", rrdata
);
275 TEST_info("error loading TLSA rrdata: %s", rrdata
);
282 static int allws(const char *cp
)
285 if (!isspace(_UC(*cp
++)))
290 static int test_tlsafile(SSL_CTX
*ctx
, const char *base_name
,
291 BIO
*f
, const char *path
)
298 while (ret
> 0 && (line
= read_to_eol(f
)) != NULL
) {
299 STACK_OF(X509
) *chain
;
311 if (*line
== '\0' || *line
== '#')
315 if (sscanf(line
, "%d %d %d %d %d%n",
316 &ntlsa
, &ncert
, &noncheck
, &want
, &want_depth
, &off
) != 5
317 || !allws(line
+ off
)) {
318 TEST_error("Malformed line for test %d", testno
);
322 if (!TEST_ptr(ssl
= SSL_new(ctx
)))
324 SSL_set_connect_state(ssl
);
325 if (SSL_dane_enable(ssl
, base_name
) <= 0) {
330 SSL_dane_set_flags(ssl
, DANE_FLAG_NO_DANE_EE_NAMECHECKS
);
332 for (i
= 0; i
< ntlsa
; ++i
) {
333 if ((line
= read_to_eol(f
)) == NULL
|| !tlsa_import_rr(ssl
, line
)) {
339 /* Don't report old news */
341 if (!TEST_ptr(chain
= load_chain(f
, ncert
))) {
346 ok
= verify_chain(ssl
, chain
);
347 OSSL_STACK_OF_X509_free(chain
);
348 err
= SSL_get_verify_result(ssl
);
350 * Peek under the hood, normally TLSA match data is hidden when
351 * verification fails, we can obtain any suppressed data by setting the
352 * verification result to X509_V_OK before looking.
354 SSL_set_verify_result(ssl
, X509_V_OK
);
355 mdpth
= SSL_get0_dane_authority(ssl
, NULL
, NULL
);
356 /* Not needed any more, but lead by example and put the error back. */
357 SSL_set_verify_result(ssl
, err
);
360 if (!TEST_int_eq(err
, want
)) {
361 if (want
== X509_V_OK
)
362 TEST_info("Verification failure in test %d: %d=%s",
363 testno
, err
, X509_verify_cert_error_string(err
));
365 TEST_info("Unexpected error in test %d", testno
);
369 if (!TEST_false(want
== 0 && ok
== 0)) {
370 TEST_info("Verification failure in test %d: ok=0", testno
);
374 if (!TEST_int_eq(mdpth
, want_depth
)) {
375 TEST_info("In test test %d", testno
);
384 static int run_tlsatest(void)
390 if (!TEST_ptr(f
= BIO_new_file(tlsafile
, "r"))
391 || !TEST_ptr(ctx
= SSL_CTX_new(TLS_client_method()))
392 || !TEST_int_gt(SSL_CTX_dane_enable(ctx
), 0)
393 || !TEST_true(SSL_CTX_load_verify_file(ctx
, CAfile
))
394 || !TEST_int_gt(SSL_CTX_dane_mtype_set(ctx
, EVP_sha512(), 2, 1), 0)
395 || !TEST_int_gt(SSL_CTX_dane_mtype_set(ctx
, EVP_sha256(), 1, 2), 0)
396 || !TEST_int_gt(test_tlsafile(ctx
, basedomain
, f
, tlsafile
), 0))
407 OPT_TEST_DECLARE_USAGE("basedomain CAfile tlsafile\n")
409 int setup_tests(void)
411 if (!test_skip_common_options()) {
412 TEST_error("Error parsing test options\n");
416 if (!TEST_ptr(basedomain
= test_get_argument(0))
417 || !TEST_ptr(CAfile
= test_get_argument(1))
418 || !TEST_ptr(tlsafile
= test_get_argument(2)))
421 ADD_TEST(run_tlsatest
);
425 #include "internal/dane.h"
427 static void store_ctx_dane_init(X509_STORE_CTX
*store_ctx
, SSL
*ssl
)
429 X509_STORE_CTX_set0_dane(store_ctx
, SSL_get0_dane(ssl
));