2 * Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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
;
62 int store_ctx_idx
= SSL_get_ex_data_X509_STORE_CTX_idx();
64 if (!TEST_ptr(store_ctx
= X509_STORE_CTX_new())
65 || !TEST_ptr(ssl_ctx
= SSL_get_SSL_CTX(ssl
))
66 || !TEST_ptr(store
= SSL_CTX_get_cert_store(ssl_ctx
))
67 || !TEST_ptr(cert
= sk_X509_value(chain
, 0))
68 || !TEST_true(X509_STORE_CTX_init(store_ctx
, store
, cert
, chain
))
69 || !TEST_true(X509_STORE_CTX_set_ex_data(store_ctx
, store_ctx_idx
,
73 X509_STORE_CTX_set_default(store_ctx
,
74 SSL_is_server(ssl
) ? "ssl_client" : "ssl_server");
75 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(store_ctx
),
77 store_ctx_dane_init(store_ctx
, ssl
);
79 if (SSL_get_verify_callback(ssl
) != NULL
)
80 X509_STORE_CTX_set_verify_cb(store_ctx
, SSL_get_verify_callback(ssl
));
82 /* Mask "internal failures" (-1) from our return value. */
83 if (!TEST_int_ge(ret
= X509_verify_cert(store_ctx
), 0))
86 SSL_set_verify_result(ssl
, X509_STORE_CTX_get_error(store_ctx
));
87 X509_STORE_CTX_cleanup(store_ctx
);
90 X509_STORE_CTX_free(store_ctx
);
94 static STACK_OF(X509
) *load_chain(BIO
*fp
, int nelem
)
99 unsigned char *data
= 0;
101 char *errtype
= 0; /* if error: cert or pkey? */
102 STACK_OF(X509
) *chain
;
103 typedef X509
*(*d2i_X509_t
)(X509
**, const unsigned char **, long);
105 if (!TEST_ptr(chain
= sk_X509_new_null()))
109 count
< nelem
&& errtype
== 0
110 && PEM_read_bio(fp
, &name
, &header
, &data
, &len
) == 1;
112 if (strcmp(name
, PEM_STRING_X509
) == 0
113 || strcmp(name
, PEM_STRING_X509_TRUSTED
) == 0
114 || strcmp(name
, PEM_STRING_X509_OLD
) == 0) {
115 d2i_X509_t d
= strcmp(name
, PEM_STRING_X509_TRUSTED
) != 0
116 ? d2i_X509_AUX
: d2i_X509
;
118 const unsigned char *p
= data
;
120 if (!TEST_ptr(cert
= d(0, &p
, len
))
121 || !TEST_long_eq(p
- data
, len
)) {
122 TEST_info("Certificate parsing error");
126 if (!TEST_true(sk_X509_push(chain
, cert
)))
129 TEST_info("Unknown chain file object %s", name
);
134 OPENSSL_free(header
);
136 name
= header
= NULL
;
140 if (count
== nelem
) {
147 OPENSSL_free(header
);
149 sk_X509_pop_free(chain
, X509_free
);
153 static char *read_to_eol(BIO
*f
)
155 static char buf
[1024];
158 if (!BIO_gets(f
, buf
, sizeof(buf
)))
162 if (buf
[n
- 1] != '\n') {
163 if (n
+ 1 == sizeof(buf
))
164 TEST_error("input too long");
166 TEST_error("EOF before newline");
170 /* Trim trailing whitespace */
171 while (n
> 0 && isspace(_UC(buf
[n
- 1])))
178 * Hex decoder that tolerates optional whitespace
180 static ossl_ssize_t
hexdecode(const char *in
, void *result
)
182 unsigned char **out
= (unsigned char **)result
;
188 if (!TEST_ptr(ret
= OPENSSL_malloc(strlen(in
) / 2)))
192 for (byte
= 0; *in
; ++in
) {
195 if (isspace(_UC(*in
)))
197 x
= OPENSSL_hexchar2int(*in
);
203 if ((nibble
^= 1) == 0) {
215 return cp
- (*out
= ret
);
218 static ossl_ssize_t
checked_uint8(const char *in
, void *out
)
220 uint8_t *result
= (uint8_t *)out
;
227 v
= strtol(cp
, &endp
, 10);
230 if (((v
== LONG_MIN
|| v
== LONG_MAX
) && e
== ERANGE
) ||
231 endp
== cp
|| !isspace(_UC(*endp
)) ||
232 v
!= (*(uint8_t *)result
= (uint8_t) v
)) {
235 for (cp
= endp
; isspace(_UC(*cp
)); ++cp
)
243 ossl_ssize_t (*parser
)(const char *, void *);
246 static int tlsa_import_rr(SSL
*ssl
, const char *rrdata
)
248 static uint8_t usage
;
249 static uint8_t selector
;
250 static uint8_t mtype
;
251 static unsigned char *data
= NULL
;
252 static struct tlsa_field tlsa_fields
[] = {
253 { &usage
, "usage", checked_uint8
},
254 { &selector
, "selector", checked_uint8
},
255 { &mtype
, "mtype", checked_uint8
},
256 { &data
, "data", hexdecode
},
260 struct tlsa_field
*f
;
261 const char *cp
= rrdata
;
262 ossl_ssize_t len
= 0;
264 for (f
= tlsa_fields
; f
->var
; ++f
) {
265 if ((len
= f
->parser(cp
+= len
, f
->var
)) <= 0) {
266 TEST_info("bad TLSA %s field in: %s", f
->name
, rrdata
);
271 ret
= SSL_dane_tlsa_add(ssl
, usage
, selector
, mtype
, data
, len
);
274 TEST_info("unusable TLSA rrdata: %s", rrdata
);
278 TEST_info("error loading TLSA rrdata: %s", rrdata
);
285 static int allws(const char *cp
)
288 if (!isspace(_UC(*cp
++)))
293 static int test_tlsafile(SSL_CTX
*ctx
, const char *base_name
,
294 BIO
*f
, const char *path
)
301 while (ret
> 0 && (line
= read_to_eol(f
)) != NULL
) {
302 STACK_OF(X509
) *chain
;
314 if (*line
== '\0' || *line
== '#')
318 if (sscanf(line
, "%d %d %d %d %d%n",
319 &ntlsa
, &ncert
, &noncheck
, &want
, &want_depth
, &off
) != 5
320 || !allws(line
+ off
)) {
321 TEST_error("Malformed line for test %d", testno
);
325 if (!TEST_ptr(ssl
= SSL_new(ctx
)))
327 SSL_set_connect_state(ssl
);
328 if (SSL_dane_enable(ssl
, base_name
) <= 0) {
333 SSL_dane_set_flags(ssl
, DANE_FLAG_NO_DANE_EE_NAMECHECKS
);
335 for (i
= 0; i
< ntlsa
; ++i
) {
336 if ((line
= read_to_eol(f
)) == NULL
|| !tlsa_import_rr(ssl
, line
)) {
342 /* Don't report old news */
344 if (!TEST_ptr(chain
= load_chain(f
, ncert
))) {
349 ok
= verify_chain(ssl
, chain
);
350 sk_X509_pop_free(chain
, X509_free
);
351 err
= SSL_get_verify_result(ssl
);
353 * Peek under the hood, normally TLSA match data is hidden when
354 * verification fails, we can obtain any suppressed data by setting the
355 * verification result to X509_V_OK before looking.
357 SSL_set_verify_result(ssl
, X509_V_OK
);
358 mdpth
= SSL_get0_dane_authority(ssl
, NULL
, NULL
);
359 /* Not needed any more, but lead by example and put the error back. */
360 SSL_set_verify_result(ssl
, err
);
363 if (!TEST_int_eq(err
, want
)) {
364 if (want
== X509_V_OK
)
365 TEST_info("Verification failure in test %d: %d=%s",
366 testno
, err
, X509_verify_cert_error_string(err
));
368 TEST_info("Unexpected error in test %d", testno
);
372 if (!TEST_false(want
== 0 && ok
== 0)) {
373 TEST_info("Verification failure in test %d: ok=0", testno
);
377 if (!TEST_int_eq(mdpth
, want_depth
)) {
378 TEST_info("In test test %d", testno
);
387 static int run_tlsatest(void)
393 if (!TEST_ptr(f
= BIO_new_file(tlsafile
, "r"))
394 || !TEST_ptr(ctx
= SSL_CTX_new(TLS_client_method()))
395 || !TEST_int_gt(SSL_CTX_dane_enable(ctx
), 0)
396 || !TEST_true(SSL_CTX_load_verify_locations(ctx
, CAfile
, NULL
))
397 || !TEST_int_gt(SSL_CTX_dane_mtype_set(ctx
, EVP_sha512(), 2, 1),
399 || !TEST_int_gt(SSL_CTX_dane_mtype_set(ctx
, EVP_sha256(), 1, 2),
401 || !TEST_int_gt(test_tlsafile(ctx
, basedomain
, f
, tlsafile
), 0))
412 int setup_tests(void)
414 if (!TEST_ptr(basedomain
= test_get_argument(0))
415 || !TEST_ptr(CAfile
= test_get_argument(1))
416 || !TEST_ptr(tlsafile
= test_get_argument(2))) {
417 TEST_error("Usage error: danetest basedomain CAfile tlsafile");
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
));