1 /*
2 * Copyright 2016-2022 The OpenSSL Project Authors. All Rights Reserved.
3 *
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
8 */
9
10 #include <string.h>
11
12 #include <openssl/bio.h>
13 #include <openssl/x509_vfy.h>
14 #include <openssl/ssl.h>
15 #include <openssl/core_names.h>
16
17 #include "../../ssl/ssl_local.h"
18 #include "internal/sockets.h"
19 #include "internal/nelem.h"
20 #include "handshake.h"
21 #include "../testutil.h"
22
23 #if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
24 #include <netinet/sctp.h>
25 #endif
26
HANDSHAKE_RESULT_new(void)27 HANDSHAKE_RESULT *HANDSHAKE_RESULT_new(void)
28 {
29 HANDSHAKE_RESULT *ret;
30
31 TEST_ptr(ret = OPENSSL_zalloc(sizeof(*ret)));
32 return ret;
33 }
34
HANDSHAKE_RESULT_free(HANDSHAKE_RESULT * result)35 void HANDSHAKE_RESULT_free(HANDSHAKE_RESULT *result)
36 {
37 if (result == NULL)
38 return;
39 OPENSSL_free(result->client_npn_negotiated);
40 OPENSSL_free(result->server_npn_negotiated);
41 OPENSSL_free(result->client_alpn_negotiated);
42 OPENSSL_free(result->server_alpn_negotiated);
43 OPENSSL_free(result->result_session_ticket_app_data);
44 sk_X509_NAME_pop_free(result->server_ca_names, X509_NAME_free);
45 sk_X509_NAME_pop_free(result->client_ca_names, X509_NAME_free);
46 OPENSSL_free(result->cipher);
47 OPENSSL_free(result);
48 }
49
50 /*
51 * Since there appears to be no way to extract the sent/received alert
52 * from the SSL object directly, we use the info callback and stash
53 * the result in ex_data.
54 */
55 typedef struct handshake_ex_data_st {
56 int alert_sent;
57 int num_fatal_alerts_sent;
58 int alert_received;
59 int session_ticket_do_not_call;
60 ssl_servername_t servername;
61 } HANDSHAKE_EX_DATA;
62
63 /* |ctx_data| itself is stack-allocated. */
ctx_data_free_data(CTX_DATA * ctx_data)64 static void ctx_data_free_data(CTX_DATA *ctx_data)
65 {
66 OPENSSL_free(ctx_data->npn_protocols);
67 ctx_data->npn_protocols = NULL;
68 OPENSSL_free(ctx_data->alpn_protocols);
69 ctx_data->alpn_protocols = NULL;
70 OPENSSL_free(ctx_data->srp_user);
71 ctx_data->srp_user = NULL;
72 OPENSSL_free(ctx_data->srp_password);
73 ctx_data->srp_password = NULL;
74 OPENSSL_free(ctx_data->session_ticket_app_data);
75 ctx_data->session_ticket_app_data = NULL;
76 }
77
78 static int ex_data_idx;
79
info_cb(const SSL * s,int where,int ret)80 static void info_cb(const SSL *s, int where, int ret)
81 {
82 if (where & SSL_CB_ALERT) {
83 HANDSHAKE_EX_DATA *ex_data =
84 (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
85 if (where & SSL_CB_WRITE) {
86 ex_data->alert_sent = ret;
87 if (strcmp(SSL_alert_type_string(ret), "F") == 0
88 || strcmp(SSL_alert_desc_string(ret), "CN") == 0)
89 ex_data->num_fatal_alerts_sent++;
90 } else {
91 ex_data->alert_received = ret;
92 }
93 }
94 }
95
96 /* Select the appropriate server CTX.
97 * Returns SSL_TLSEXT_ERR_OK if a match was found.
98 * If |ignore| is 1, returns SSL_TLSEXT_ERR_NOACK on mismatch.
99 * Otherwise, returns SSL_TLSEXT_ERR_ALERT_FATAL on mismatch.
100 * An empty SNI extension also returns SSL_TSLEXT_ERR_NOACK.
101 */
select_server_ctx(SSL * s,void * arg,int ignore)102 static int select_server_ctx(SSL *s, void *arg, int ignore)
103 {
104 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
105 HANDSHAKE_EX_DATA *ex_data =
106 (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
107
108 if (servername == NULL) {
109 ex_data->servername = SSL_TEST_SERVERNAME_SERVER1;
110 return SSL_TLSEXT_ERR_NOACK;
111 }
112
113 if (strcmp(servername, "server2") == 0) {
114 SSL_CTX *new_ctx = (SSL_CTX*)arg;
115 SSL_set_SSL_CTX(s, new_ctx);
116 /*
117 * Copy over all the SSL_CTX options - reasonable behavior
118 * allows testing of cases where the options between two
119 * contexts differ/conflict
120 */
121 SSL_clear_options(s, 0xFFFFFFFFL);
122 SSL_set_options(s, SSL_CTX_get_options(new_ctx));
123
124 ex_data->servername = SSL_TEST_SERVERNAME_SERVER2;
125 return SSL_TLSEXT_ERR_OK;
126 } else if (strcmp(servername, "server1") == 0) {
127 ex_data->servername = SSL_TEST_SERVERNAME_SERVER1;
128 return SSL_TLSEXT_ERR_OK;
129 } else if (ignore) {
130 ex_data->servername = SSL_TEST_SERVERNAME_SERVER1;
131 return SSL_TLSEXT_ERR_NOACK;
132 } else {
133 /* Don't set an explicit alert, to test library defaults. */
134 return SSL_TLSEXT_ERR_ALERT_FATAL;
135 }
136 }
137
client_hello_select_server_ctx(SSL * s,void * arg,int ignore)138 static int client_hello_select_server_ctx(SSL *s, void *arg, int ignore)
139 {
140 const char *servername;
141 const unsigned char *p;
142 size_t len, remaining;
143 HANDSHAKE_EX_DATA *ex_data =
144 (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
145
146 /*
147 * The server_name extension was given too much extensibility when it
148 * was written, so parsing the normal case is a bit complex.
149 */
150 if (!SSL_client_hello_get0_ext(s, TLSEXT_TYPE_server_name, &p,
151 &remaining) ||
152 remaining <= 2)
153 return 0;
154 /* Extract the length of the supplied list of names. */
155 len = (*(p++) << 8);
156 len += *(p++);
157 if (len + 2 != remaining)
158 return 0;
159 remaining = len;
160 /*
161 * The list in practice only has a single element, so we only consider
162 * the first one.
163 */
164 if (remaining == 0 || *p++ != TLSEXT_NAMETYPE_host_name)
165 return 0;
166 remaining--;
167 /* Now we can finally pull out the byte array with the actual hostname. */
168 if (remaining <= 2)
169 return 0;
170 len = (*(p++) << 8);
171 len += *(p++);
172 if (len + 2 > remaining)
173 return 0;
174 remaining = len;
175 servername = (const char *)p;
176
177 if (len == strlen("server2") && HAS_PREFIX(servername, "server2")) {
178 SSL_CTX *new_ctx = arg;
179 SSL_set_SSL_CTX(s, new_ctx);
180 /*
181 * Copy over all the SSL_CTX options - reasonable behavior
182 * allows testing of cases where the options between two
183 * contexts differ/conflict
184 */
185 SSL_clear_options(s, 0xFFFFFFFFL);
186 SSL_set_options(s, SSL_CTX_get_options(new_ctx));
187
188 ex_data->servername = SSL_TEST_SERVERNAME_SERVER2;
189 return 1;
190 } else if (len == strlen("server1") &&
191 HAS_PREFIX(servername, "server1")) {
192 ex_data->servername = SSL_TEST_SERVERNAME_SERVER1;
193 return 1;
194 } else if (ignore) {
195 ex_data->servername = SSL_TEST_SERVERNAME_SERVER1;
196 return 1;
197 }
198 return 0;
199 }
200 /*
201 * (RFC 6066):
202 * If the server understood the ClientHello extension but
203 * does not recognize the server name, the server SHOULD take one of two
204 * actions: either abort the handshake by sending a fatal-level
205 * unrecognized_name(112) alert or continue the handshake.
206 *
207 * This behaviour is up to the application to configure; we test both
208 * configurations to ensure the state machine propagates the result
209 * correctly.
210 */
servername_ignore_cb(SSL * s,int * ad,void * arg)211 static int servername_ignore_cb(SSL *s, int *ad, void *arg)
212 {
213 return select_server_ctx(s, arg, 1);
214 }
215
servername_reject_cb(SSL * s,int * ad,void * arg)216 static int servername_reject_cb(SSL *s, int *ad, void *arg)
217 {
218 return select_server_ctx(s, arg, 0);
219 }
220
client_hello_ignore_cb(SSL * s,int * al,void * arg)221 static int client_hello_ignore_cb(SSL *s, int *al, void *arg)
222 {
223 if (!client_hello_select_server_ctx(s, arg, 1)) {
224 *al = SSL_AD_UNRECOGNIZED_NAME;
225 return SSL_CLIENT_HELLO_ERROR;
226 }
227 return SSL_CLIENT_HELLO_SUCCESS;
228 }
229
client_hello_reject_cb(SSL * s,int * al,void * arg)230 static int client_hello_reject_cb(SSL *s, int *al, void *arg)
231 {
232 if (!client_hello_select_server_ctx(s, arg, 0)) {
233 *al = SSL_AD_UNRECOGNIZED_NAME;
234 return SSL_CLIENT_HELLO_ERROR;
235 }
236 return SSL_CLIENT_HELLO_SUCCESS;
237 }
238
client_hello_nov12_cb(SSL * s,int * al,void * arg)239 static int client_hello_nov12_cb(SSL *s, int *al, void *arg)
240 {
241 int ret;
242 unsigned int v;
243 const unsigned char *p;
244
245 v = SSL_client_hello_get0_legacy_version(s);
246 if (v > TLS1_2_VERSION || v < SSL3_VERSION) {
247 *al = SSL_AD_PROTOCOL_VERSION;
248 return SSL_CLIENT_HELLO_ERROR;
249 }
250 (void)SSL_client_hello_get0_session_id(s, &p);
251 if (p == NULL ||
252 SSL_client_hello_get0_random(s, &p) == 0 ||
253 SSL_client_hello_get0_ciphers(s, &p) == 0 ||
254 SSL_client_hello_get0_compression_methods(s, &p) == 0) {
255 *al = SSL_AD_INTERNAL_ERROR;
256 return SSL_CLIENT_HELLO_ERROR;
257 }
258 ret = client_hello_select_server_ctx(s, arg, 0);
259 SSL_set_max_proto_version(s, TLS1_1_VERSION);
260 if (!ret) {
261 *al = SSL_AD_UNRECOGNIZED_NAME;
262 return SSL_CLIENT_HELLO_ERROR;
263 }
264 return SSL_CLIENT_HELLO_SUCCESS;
265 }
266
267 static unsigned char dummy_ocsp_resp_good_val = 0xff;
268 static unsigned char dummy_ocsp_resp_bad_val = 0xfe;
269
server_ocsp_cb(SSL * s,void * arg)270 static int server_ocsp_cb(SSL *s, void *arg)
271 {
272 unsigned char *resp;
273
274 resp = OPENSSL_malloc(1);
275 if (resp == NULL)
276 return SSL_TLSEXT_ERR_ALERT_FATAL;
277 /*
278 * For the purposes of testing we just send back a dummy OCSP response
279 */
280 *resp = *(unsigned char *)arg;
281 if (!SSL_set_tlsext_status_ocsp_resp(s, resp, 1)) {
282 OPENSSL_free(resp);
283 return SSL_TLSEXT_ERR_ALERT_FATAL;
284 }
285
286 return SSL_TLSEXT_ERR_OK;
287 }
288
client_ocsp_cb(SSL * s,void * arg)289 static int client_ocsp_cb(SSL *s, void *arg)
290 {
291 const unsigned char *resp;
292 int len;
293
294 len = SSL_get_tlsext_status_ocsp_resp(s, &resp);
295 if (len != 1 || *resp != dummy_ocsp_resp_good_val)
296 return 0;
297
298 return 1;
299 }
300
verify_reject_cb(X509_STORE_CTX * ctx,void * arg)301 static int verify_reject_cb(X509_STORE_CTX *ctx, void *arg) {
302 X509_STORE_CTX_set_error(ctx, X509_V_ERR_APPLICATION_VERIFICATION);
303 return 0;
304 }
305
306 static int n_retries = 0;
verify_retry_cb(X509_STORE_CTX * ctx,void * arg)307 static int verify_retry_cb(X509_STORE_CTX *ctx, void *arg) {
308 int idx = SSL_get_ex_data_X509_STORE_CTX_idx();
309 SSL *ssl;
310
311 /* this should not happen but check anyway */
312 if (idx < 0
313 || (ssl = X509_STORE_CTX_get_ex_data(ctx, idx)) == NULL)
314 return 0;
315
316 if (--n_retries < 0)
317 return 1;
318
319 return SSL_set_retry_verify(ssl);
320 }
321
verify_accept_cb(X509_STORE_CTX * ctx,void * arg)322 static int verify_accept_cb(X509_STORE_CTX *ctx, void *arg) {
323 return 1;
324 }
325
broken_session_ticket_cb(SSL * s,unsigned char * key_name,unsigned char * iv,EVP_CIPHER_CTX * ctx,EVP_MAC_CTX * hctx,int enc)326 static int broken_session_ticket_cb(SSL *s, unsigned char *key_name,
327 unsigned char *iv, EVP_CIPHER_CTX *ctx,
328 EVP_MAC_CTX *hctx, int enc)
329 {
330 return 0;
331 }
332
do_not_call_session_ticket_cb(SSL * s,unsigned char * key_name,unsigned char * iv,EVP_CIPHER_CTX * ctx,EVP_MAC_CTX * hctx,int enc)333 static int do_not_call_session_ticket_cb(SSL *s, unsigned char *key_name,
334 unsigned char *iv,
335 EVP_CIPHER_CTX *ctx,
336 EVP_MAC_CTX *hctx, int enc)
337 {
338 HANDSHAKE_EX_DATA *ex_data =
339 (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
340 ex_data->session_ticket_do_not_call = 1;
341 return 0;
342 }
343
344 /* Parse the comma-separated list into TLS format. */
parse_protos(const char * protos,unsigned char ** out,size_t * outlen)345 static int parse_protos(const char *protos, unsigned char **out, size_t *outlen)
346 {
347 size_t len, i, prefix;
348
349 len = strlen(protos);
350
351 /* Should never have reuse. */
352 if (!TEST_ptr_null(*out)
353 /* Test values are small, so we omit length limit checks. */
354 || !TEST_ptr(*out = OPENSSL_malloc(len + 1)))
355 return 0;
356 *outlen = len + 1;
357
358 /*
359 * foo => '3', 'f', 'o', 'o'
360 * foo,bar => '3', 'f', 'o', 'o', '3', 'b', 'a', 'r'
361 */
362 memcpy(*out + 1, protos, len);
363
364 prefix = 0;
365 i = prefix + 1;
366 while (i <= len) {
367 if ((*out)[i] == ',') {
368 if (!TEST_int_gt(i - 1, prefix))
369 goto err;
370 (*out)[prefix] = (unsigned char)(i - 1 - prefix);
371 prefix = i;
372 }
373 i++;
374 }
375 if (!TEST_int_gt(len, prefix))
376 goto err;
377 (*out)[prefix] = (unsigned char)(len - prefix);
378 return 1;
379
380 err:
381 OPENSSL_free(*out);
382 *out = NULL;
383 return 0;
384 }
385
386 #ifndef OPENSSL_NO_NEXTPROTONEG
387 /*
388 * The client SHOULD select the first protocol advertised by the server that it
389 * also supports. In the event that the client doesn't support any of server's
390 * protocols, or the server doesn't advertise any, it SHOULD select the first
391 * protocol that it supports.
392 */
client_npn_cb(SSL * s,unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)393 static int client_npn_cb(SSL *s, unsigned char **out, unsigned char *outlen,
394 const unsigned char *in, unsigned int inlen,
395 void *arg)
396 {
397 CTX_DATA *ctx_data = (CTX_DATA*)(arg);
398 int ret;
399
400 ret = SSL_select_next_proto(out, outlen, in, inlen,
401 ctx_data->npn_protocols,
402 ctx_data->npn_protocols_len);
403 /* Accept both OPENSSL_NPN_NEGOTIATED and OPENSSL_NPN_NO_OVERLAP. */
404 return TEST_true(ret == OPENSSL_NPN_NEGOTIATED || ret == OPENSSL_NPN_NO_OVERLAP)
405 ? SSL_TLSEXT_ERR_OK : SSL_TLSEXT_ERR_ALERT_FATAL;
406 }
407
server_npn_cb(SSL * s,const unsigned char ** data,unsigned int * len,void * arg)408 static int server_npn_cb(SSL *s, const unsigned char **data,
409 unsigned int *len, void *arg)
410 {
411 CTX_DATA *ctx_data = (CTX_DATA*)(arg);
412 *data = ctx_data->npn_protocols;
413 *len = ctx_data->npn_protocols_len;
414 return SSL_TLSEXT_ERR_OK;
415 }
416 #endif
417
418 /*
419 * The server SHOULD select the most highly preferred protocol that it supports
420 * and that is also advertised by the client. In the event that the server
421 * supports no protocols that the client advertises, then the server SHALL
422 * respond with a fatal "no_application_protocol" alert.
423 */
server_alpn_cb(SSL * s,const unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)424 static int server_alpn_cb(SSL *s, const unsigned char **out,
425 unsigned char *outlen, const unsigned char *in,
426 unsigned int inlen, void *arg)
427 {
428 CTX_DATA *ctx_data = (CTX_DATA*)(arg);
429 int ret;
430
431 /* SSL_select_next_proto isn't const-correct... */
432 unsigned char *tmp_out;
433
434 /*
435 * The result points either to |in| or to |ctx_data->alpn_protocols|.
436 * The callback is allowed to point to |in| or to a long-lived buffer,
437 * so we can return directly without storing a copy.
438 */
439 ret = SSL_select_next_proto(&tmp_out, outlen,
440 ctx_data->alpn_protocols,
441 ctx_data->alpn_protocols_len, in, inlen);
442
443 *out = tmp_out;
444 /* Unlike NPN, we don't tolerate a mismatch. */
445 return ret == OPENSSL_NPN_NEGOTIATED ? SSL_TLSEXT_ERR_OK
446 : SSL_TLSEXT_ERR_ALERT_FATAL;
447 }
448
generate_session_ticket_cb(SSL * s,void * arg)449 static int generate_session_ticket_cb(SSL *s, void *arg)
450 {
451 CTX_DATA *server_ctx_data = arg;
452 SSL_SESSION *ss = SSL_get_session(s);
453 char *app_data = server_ctx_data->session_ticket_app_data;
454
455 if (ss == NULL || app_data == NULL)
456 return 0;
457
458 return SSL_SESSION_set1_ticket_appdata(ss, app_data, strlen(app_data));
459 }
460
decrypt_session_ticket_cb(SSL * s,SSL_SESSION * ss,const unsigned char * keyname,size_t keyname_len,SSL_TICKET_STATUS status,void * arg)461 static int decrypt_session_ticket_cb(SSL *s, SSL_SESSION *ss,
462 const unsigned char *keyname,
463 size_t keyname_len,
464 SSL_TICKET_STATUS status,
465 void *arg)
466 {
467 switch (status) {
468 case SSL_TICKET_EMPTY:
469 case SSL_TICKET_NO_DECRYPT:
470 return SSL_TICKET_RETURN_IGNORE_RENEW;
471 case SSL_TICKET_SUCCESS:
472 return SSL_TICKET_RETURN_USE;
473 case SSL_TICKET_SUCCESS_RENEW:
474 return SSL_TICKET_RETURN_USE_RENEW;
475 default:
476 break;
477 }
478 return SSL_TICKET_RETURN_ABORT;
479 }
480
481 /*
482 * Configure callbacks and other properties that can't be set directly
483 * in the server/client CONF.
484 */
configure_handshake_ctx(SSL_CTX * server_ctx,SSL_CTX * server2_ctx,SSL_CTX * client_ctx,const SSL_TEST_CTX * test,const SSL_TEST_EXTRA_CONF * extra,CTX_DATA * server_ctx_data,CTX_DATA * server2_ctx_data,CTX_DATA * client_ctx_data)485 static int configure_handshake_ctx(SSL_CTX *server_ctx, SSL_CTX *server2_ctx,
486 SSL_CTX *client_ctx,
487 const SSL_TEST_CTX *test,
488 const SSL_TEST_EXTRA_CONF *extra,
489 CTX_DATA *server_ctx_data,
490 CTX_DATA *server2_ctx_data,
491 CTX_DATA *client_ctx_data)
492 {
493 unsigned char *ticket_keys;
494 size_t ticket_key_len;
495
496 if (!TEST_int_eq(SSL_CTX_set_max_send_fragment(server_ctx,
497 test->max_fragment_size), 1))
498 goto err;
499 if (server2_ctx != NULL) {
500 if (!TEST_int_eq(SSL_CTX_set_max_send_fragment(server2_ctx,
501 test->max_fragment_size),
502 1))
503 goto err;
504 }
505 if (!TEST_int_eq(SSL_CTX_set_max_send_fragment(client_ctx,
506 test->max_fragment_size), 1))
507 goto err;
508
509 switch (extra->client.verify_callback) {
510 case SSL_TEST_VERIFY_ACCEPT_ALL:
511 SSL_CTX_set_cert_verify_callback(client_ctx, &verify_accept_cb, NULL);
512 break;
513 case SSL_TEST_VERIFY_RETRY_ONCE:
514 n_retries = 1;
515 SSL_CTX_set_cert_verify_callback(client_ctx, &verify_retry_cb, NULL);
516 break;
517 case SSL_TEST_VERIFY_REJECT_ALL:
518 SSL_CTX_set_cert_verify_callback(client_ctx, &verify_reject_cb, NULL);
519 break;
520 case SSL_TEST_VERIFY_NONE:
521 break;
522 }
523
524 switch (extra->client.max_fragment_len_mode) {
525 case TLSEXT_max_fragment_length_512:
526 case TLSEXT_max_fragment_length_1024:
527 case TLSEXT_max_fragment_length_2048:
528 case TLSEXT_max_fragment_length_4096:
529 case TLSEXT_max_fragment_length_DISABLED:
530 SSL_CTX_set_tlsext_max_fragment_length(
531 client_ctx, extra->client.max_fragment_len_mode);
532 break;
533 }
534
535 /*
536 * Link the two contexts for SNI purposes.
537 * Also do ClientHello callbacks here, as setting both ClientHello and SNI
538 * is bad.
539 */
540 switch (extra->server.servername_callback) {
541 case SSL_TEST_SERVERNAME_IGNORE_MISMATCH:
542 SSL_CTX_set_tlsext_servername_callback(server_ctx, servername_ignore_cb);
543 SSL_CTX_set_tlsext_servername_arg(server_ctx, server2_ctx);
544 break;
545 case SSL_TEST_SERVERNAME_REJECT_MISMATCH:
546 SSL_CTX_set_tlsext_servername_callback(server_ctx, servername_reject_cb);
547 SSL_CTX_set_tlsext_servername_arg(server_ctx, server2_ctx);
548 break;
549 case SSL_TEST_SERVERNAME_CB_NONE:
550 break;
551 case SSL_TEST_SERVERNAME_CLIENT_HELLO_IGNORE_MISMATCH:
552 SSL_CTX_set_client_hello_cb(server_ctx, client_hello_ignore_cb, server2_ctx);
553 break;
554 case SSL_TEST_SERVERNAME_CLIENT_HELLO_REJECT_MISMATCH:
555 SSL_CTX_set_client_hello_cb(server_ctx, client_hello_reject_cb, server2_ctx);
556 break;
557 case SSL_TEST_SERVERNAME_CLIENT_HELLO_NO_V12:
558 SSL_CTX_set_client_hello_cb(server_ctx, client_hello_nov12_cb, server2_ctx);
559 }
560
561 if (extra->server.cert_status != SSL_TEST_CERT_STATUS_NONE) {
562 SSL_CTX_set_tlsext_status_type(client_ctx, TLSEXT_STATUSTYPE_ocsp);
563 SSL_CTX_set_tlsext_status_cb(client_ctx, client_ocsp_cb);
564 SSL_CTX_set_tlsext_status_arg(client_ctx, NULL);
565 SSL_CTX_set_tlsext_status_cb(server_ctx, server_ocsp_cb);
566 SSL_CTX_set_tlsext_status_arg(server_ctx,
567 ((extra->server.cert_status == SSL_TEST_CERT_STATUS_GOOD_RESPONSE)
568 ? &dummy_ocsp_resp_good_val : &dummy_ocsp_resp_bad_val));
569 }
570
571 /*
572 * The initial_ctx/session_ctx always handles the encrypt/decrypt of the
573 * session ticket. This ticket_key callback is assigned to the second
574 * session (assigned via SNI), and should never be invoked
575 */
576 if (server2_ctx != NULL)
577 SSL_CTX_set_tlsext_ticket_key_evp_cb(server2_ctx,
578 do_not_call_session_ticket_cb);
579
580 if (extra->server.broken_session_ticket) {
581 SSL_CTX_set_tlsext_ticket_key_evp_cb(server_ctx,
582 broken_session_ticket_cb);
583 }
584 #ifndef OPENSSL_NO_NEXTPROTONEG
585 if (extra->server.npn_protocols != NULL) {
586 if (!TEST_true(parse_protos(extra->server.npn_protocols,
587 &server_ctx_data->npn_protocols,
588 &server_ctx_data->npn_protocols_len)))
589 goto err;
590 SSL_CTX_set_npn_advertised_cb(server_ctx, server_npn_cb,
591 server_ctx_data);
592 }
593 if (extra->server2.npn_protocols != NULL) {
594 if (!TEST_true(parse_protos(extra->server2.npn_protocols,
595 &server2_ctx_data->npn_protocols,
596 &server2_ctx_data->npn_protocols_len))
597 || !TEST_ptr(server2_ctx))
598 goto err;
599 SSL_CTX_set_npn_advertised_cb(server2_ctx, server_npn_cb,
600 server2_ctx_data);
601 }
602 if (extra->client.npn_protocols != NULL) {
603 if (!TEST_true(parse_protos(extra->client.npn_protocols,
604 &client_ctx_data->npn_protocols,
605 &client_ctx_data->npn_protocols_len)))
606 goto err;
607 SSL_CTX_set_next_proto_select_cb(client_ctx, client_npn_cb,
608 client_ctx_data);
609 }
610 #endif
611 if (extra->server.alpn_protocols != NULL) {
612 if (!TEST_true(parse_protos(extra->server.alpn_protocols,
613 &server_ctx_data->alpn_protocols,
614 &server_ctx_data->alpn_protocols_len)))
615 goto err;
616 SSL_CTX_set_alpn_select_cb(server_ctx, server_alpn_cb, server_ctx_data);
617 }
618 if (extra->server2.alpn_protocols != NULL) {
619 if (!TEST_ptr(server2_ctx)
620 || !TEST_true(parse_protos(extra->server2.alpn_protocols,
621 &server2_ctx_data->alpn_protocols,
622 &server2_ctx_data->alpn_protocols_len
623 )))
624 goto err;
625 SSL_CTX_set_alpn_select_cb(server2_ctx, server_alpn_cb,
626 server2_ctx_data);
627 }
628 if (extra->client.alpn_protocols != NULL) {
629 unsigned char *alpn_protos = NULL;
630 size_t alpn_protos_len = 0;
631
632 if (!TEST_true(parse_protos(extra->client.alpn_protocols,
633 &alpn_protos, &alpn_protos_len))
634 /* Reversed return value convention... */
635 || !TEST_int_eq(SSL_CTX_set_alpn_protos(client_ctx, alpn_protos,
636 alpn_protos_len), 0))
637 goto err;
638 OPENSSL_free(alpn_protos);
639 }
640
641 if (extra->server.session_ticket_app_data != NULL) {
642 server_ctx_data->session_ticket_app_data =
643 OPENSSL_strdup(extra->server.session_ticket_app_data);
644 if (!TEST_ptr(server_ctx_data->session_ticket_app_data))
645 goto err;
646 SSL_CTX_set_session_ticket_cb(server_ctx, generate_session_ticket_cb,
647 decrypt_session_ticket_cb, server_ctx_data);
648 }
649 if (extra->server2.session_ticket_app_data != NULL) {
650 if (!TEST_ptr(server2_ctx))
651 goto err;
652 server2_ctx_data->session_ticket_app_data =
653 OPENSSL_strdup(extra->server2.session_ticket_app_data);
654 if (!TEST_ptr(server2_ctx_data->session_ticket_app_data))
655 goto err;
656 SSL_CTX_set_session_ticket_cb(server2_ctx, NULL,
657 decrypt_session_ticket_cb, server2_ctx_data);
658 }
659
660 /*
661 * Use fixed session ticket keys so that we can decrypt a ticket created with
662 * one CTX in another CTX. Don't address server2 for the moment.
663 */
664 ticket_key_len = SSL_CTX_set_tlsext_ticket_keys(server_ctx, NULL, 0);
665 if (!TEST_ptr(ticket_keys = OPENSSL_zalloc(ticket_key_len))
666 || !TEST_int_eq(SSL_CTX_set_tlsext_ticket_keys(server_ctx,
667 ticket_keys,
668 ticket_key_len), 1)) {
669 OPENSSL_free(ticket_keys);
670 goto err;
671 }
672 OPENSSL_free(ticket_keys);
673
674 /* The default log list includes EC keys, so CT can't work without EC. */
675 #if !defined(OPENSSL_NO_CT) && !defined(OPENSSL_NO_EC)
676 if (!TEST_true(SSL_CTX_set_default_ctlog_list_file(client_ctx)))
677 goto err;
678 switch (extra->client.ct_validation) {
679 case SSL_TEST_CT_VALIDATION_PERMISSIVE:
680 if (!TEST_true(SSL_CTX_enable_ct(client_ctx,
681 SSL_CT_VALIDATION_PERMISSIVE)))
682 goto err;
683 break;
684 case SSL_TEST_CT_VALIDATION_STRICT:
685 if (!TEST_true(SSL_CTX_enable_ct(client_ctx, SSL_CT_VALIDATION_STRICT)))
686 goto err;
687 break;
688 case SSL_TEST_CT_VALIDATION_NONE:
689 break;
690 }
691 #endif
692 #ifndef OPENSSL_NO_SRP
693 if (!configure_handshake_ctx_for_srp(server_ctx, server2_ctx, client_ctx,
694 extra, server_ctx_data,
695 server2_ctx_data, client_ctx_data))
696 goto err;
697 #endif /* !OPENSSL_NO_SRP */
698 #ifndef OPENSSL_NO_COMP_ALG
699 if (test->compress_certificates) {
700 if (!TEST_true(SSL_CTX_compress_certs(server_ctx, 0)))
701 goto err;
702 if (server2_ctx != NULL && !TEST_true(SSL_CTX_compress_certs(server2_ctx, 0)))
703 goto err;
704 }
705 #endif
706 return 1;
707 err:
708 return 0;
709 }
710
711 /* Configure per-SSL callbacks and other properties. */
configure_handshake_ssl(SSL * server,SSL * client,const SSL_TEST_EXTRA_CONF * extra)712 static void configure_handshake_ssl(SSL *server, SSL *client,
713 const SSL_TEST_EXTRA_CONF *extra)
714 {
715 if (extra->client.servername != SSL_TEST_SERVERNAME_NONE)
716 SSL_set_tlsext_host_name(client,
717 ssl_servername_name(extra->client.servername));
718 if (extra->client.enable_pha)
719 SSL_set_post_handshake_auth(client, 1);
720 }
721
722 /* The status for each connection phase. */
723 typedef enum {
724 PEER_SUCCESS,
725 PEER_RETRY,
726 PEER_ERROR,
727 PEER_WAITING,
728 PEER_TEST_FAILURE
729 } peer_status_t;
730
731 /* An SSL object and associated read-write buffers. */
732 typedef struct peer_st {
733 SSL *ssl;
734 /* Buffer lengths are int to match the SSL read/write API. */
735 unsigned char *write_buf;
736 int write_buf_len;
737 unsigned char *read_buf;
738 int read_buf_len;
739 int bytes_to_write;
740 int bytes_to_read;
741 peer_status_t status;
742 } PEER;
743
create_peer(PEER * peer,SSL_CTX * ctx)744 static int create_peer(PEER *peer, SSL_CTX *ctx)
745 {
746 static const int peer_buffer_size = 64 * 1024;
747 SSL *ssl = NULL;
748 unsigned char *read_buf = NULL, *write_buf = NULL;
749
750 if (!TEST_ptr(ssl = SSL_new(ctx))
751 || !TEST_ptr(write_buf = OPENSSL_zalloc(peer_buffer_size))
752 || !TEST_ptr(read_buf = OPENSSL_zalloc(peer_buffer_size)))
753 goto err;
754
755 peer->ssl = ssl;
756 peer->write_buf = write_buf;
757 peer->read_buf = read_buf;
758 peer->write_buf_len = peer->read_buf_len = peer_buffer_size;
759 return 1;
760 err:
761 SSL_free(ssl);
762 OPENSSL_free(write_buf);
763 OPENSSL_free(read_buf);
764 return 0;
765 }
766
peer_free_data(PEER * peer)767 static void peer_free_data(PEER *peer)
768 {
769 SSL_free(peer->ssl);
770 OPENSSL_free(peer->write_buf);
771 OPENSSL_free(peer->read_buf);
772 }
773
774 /*
775 * Note that we could do the handshake transparently under an SSL_write,
776 * but separating the steps is more helpful for debugging test failures.
777 */
do_handshake_step(PEER * peer)778 static void do_handshake_step(PEER *peer)
779 {
780 if (!TEST_int_eq(peer->status, PEER_RETRY)) {
781 peer->status = PEER_TEST_FAILURE;
782 } else {
783 int ret = SSL_do_handshake(peer->ssl);
784
785 if (ret == 1) {
786 peer->status = PEER_SUCCESS;
787 } else if (ret == 0) {
788 peer->status = PEER_ERROR;
789 } else {
790 int error = SSL_get_error(peer->ssl, ret);
791
792 /* Memory bios should never block with SSL_ERROR_WANT_WRITE. */
793 if (error != SSL_ERROR_WANT_READ
794 && error != SSL_ERROR_WANT_RETRY_VERIFY)
795 peer->status = PEER_ERROR;
796 }
797 }
798 }
799
800 /*-
801 * Send/receive some application data. The read-write sequence is
802 * Peer A: (R) W - first read will yield no data
803 * Peer B: R W
804 * ...
805 * Peer A: R W
806 * Peer B: R W
807 * Peer A: R
808 */
do_app_data_step(PEER * peer)809 static void do_app_data_step(PEER *peer)
810 {
811 int ret = 1, write_bytes;
812
813 if (!TEST_int_eq(peer->status, PEER_RETRY)) {
814 peer->status = PEER_TEST_FAILURE;
815 return;
816 }
817
818 /* We read everything available... */
819 while (ret > 0 && peer->bytes_to_read) {
820 ret = SSL_read(peer->ssl, peer->read_buf, peer->read_buf_len);
821 if (ret > 0) {
822 if (!TEST_int_le(ret, peer->bytes_to_read)) {
823 peer->status = PEER_TEST_FAILURE;
824 return;
825 }
826 peer->bytes_to_read -= ret;
827 } else if (ret == 0) {
828 peer->status = PEER_ERROR;
829 return;
830 } else {
831 int error = SSL_get_error(peer->ssl, ret);
832 if (error != SSL_ERROR_WANT_READ) {
833 peer->status = PEER_ERROR;
834 return;
835 } /* Else continue with write. */
836 }
837 }
838
839 /* ... but we only write one write-buffer-full of data. */
840 write_bytes = peer->bytes_to_write < peer->write_buf_len ? peer->bytes_to_write :
841 peer->write_buf_len;
842 if (write_bytes) {
843 ret = SSL_write(peer->ssl, peer->write_buf, write_bytes);
844 if (ret > 0) {
845 /* SSL_write will only succeed with a complete write. */
846 if (!TEST_int_eq(ret, write_bytes)) {
847 peer->status = PEER_TEST_FAILURE;
848 return;
849 }
850 peer->bytes_to_write -= ret;
851 } else {
852 /*
853 * We should perhaps check for SSL_ERROR_WANT_READ/WRITE here
854 * but this doesn't yet occur with current app data sizes.
855 */
856 peer->status = PEER_ERROR;
857 return;
858 }
859 }
860
861 /*
862 * We could simply finish when there was nothing to read, and we have
863 * nothing left to write. But keeping track of the expected number of bytes
864 * to read gives us somewhat better guarantees that all data sent is in fact
865 * received.
866 */
867 if (peer->bytes_to_write == 0 && peer->bytes_to_read == 0) {
868 peer->status = PEER_SUCCESS;
869 }
870 }
871
do_reneg_setup_step(const SSL_TEST_CTX * test_ctx,PEER * peer)872 static void do_reneg_setup_step(const SSL_TEST_CTX *test_ctx, PEER *peer)
873 {
874 int ret;
875 char buf;
876
877 if (peer->status == PEER_SUCCESS) {
878 /*
879 * We are a client that succeeded this step previously, but the server
880 * wanted to retry. Probably there is a no_renegotiation warning alert
881 * waiting for us. Attempt to continue the handshake.
882 */
883 peer->status = PEER_RETRY;
884 do_handshake_step(peer);
885 return;
886 }
887
888 if (!TEST_int_eq(peer->status, PEER_RETRY)
889 || !TEST_true(test_ctx->handshake_mode
890 == SSL_TEST_HANDSHAKE_RENEG_SERVER
891 || test_ctx->handshake_mode
892 == SSL_TEST_HANDSHAKE_RENEG_CLIENT
893 || test_ctx->handshake_mode
894 == SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER
895 || test_ctx->handshake_mode
896 == SSL_TEST_HANDSHAKE_KEY_UPDATE_CLIENT
897 || test_ctx->handshake_mode
898 == SSL_TEST_HANDSHAKE_POST_HANDSHAKE_AUTH)) {
899 peer->status = PEER_TEST_FAILURE;
900 return;
901 }
902
903 /* Reset the count of the amount of app data we need to read/write */
904 peer->bytes_to_write = peer->bytes_to_read = test_ctx->app_data_size;
905
906 /* Check if we are the peer that is going to initiate */
907 if ((test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RENEG_SERVER
908 && SSL_is_server(peer->ssl))
909 || (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RENEG_CLIENT
910 && !SSL_is_server(peer->ssl))) {
911 /*
912 * If we already asked for a renegotiation then fall through to the
913 * SSL_read() below.
914 */
915 if (!SSL_renegotiate_pending(peer->ssl)) {
916 /*
917 * If we are the client we will always attempt to resume the
918 * session. The server may or may not resume dependent on the
919 * setting of SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
920 */
921 if (SSL_is_server(peer->ssl)) {
922 ret = SSL_renegotiate(peer->ssl);
923 } else {
924 int full_reneg = 0;
925
926 if (test_ctx->extra.client.no_extms_on_reneg) {
927 SSL_set_options(peer->ssl, SSL_OP_NO_EXTENDED_MASTER_SECRET);
928 full_reneg = 1;
929 }
930 if (test_ctx->extra.client.reneg_ciphers != NULL) {
931 if (!SSL_set_cipher_list(peer->ssl,
932 test_ctx->extra.client.reneg_ciphers)) {
933 peer->status = PEER_ERROR;
934 return;
935 }
936 full_reneg = 1;
937 }
938 if (full_reneg)
939 ret = SSL_renegotiate(peer->ssl);
940 else
941 ret = SSL_renegotiate_abbreviated(peer->ssl);
942 }
943 if (!ret) {
944 peer->status = PEER_ERROR;
945 return;
946 }
947 do_handshake_step(peer);
948 /*
949 * If status is PEER_RETRY it means we're waiting on the peer to
950 * continue the handshake. As far as setting up the renegotiation is
951 * concerned that is a success. The next step will continue the
952 * handshake to its conclusion.
953 *
954 * If status is PEER_SUCCESS then we are the server and we have
955 * successfully sent the HelloRequest. We need to continue to wait
956 * until the handshake arrives from the client.
957 */
958 if (peer->status == PEER_RETRY)
959 peer->status = PEER_SUCCESS;
960 else if (peer->status == PEER_SUCCESS)
961 peer->status = PEER_RETRY;
962 return;
963 }
964 } else if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER
965 || test_ctx->handshake_mode
966 == SSL_TEST_HANDSHAKE_KEY_UPDATE_CLIENT) {
967 if (SSL_is_server(peer->ssl)
968 != (test_ctx->handshake_mode
969 == SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER)) {
970 peer->status = PEER_SUCCESS;
971 return;
972 }
973
974 ret = SSL_key_update(peer->ssl, test_ctx->key_update_type);
975 if (!ret) {
976 peer->status = PEER_ERROR;
977 return;
978 }
979 do_handshake_step(peer);
980 /*
981 * This is a one step handshake. We shouldn't get anything other than
982 * PEER_SUCCESS
983 */
984 if (peer->status != PEER_SUCCESS)
985 peer->status = PEER_ERROR;
986 return;
987 } else if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_POST_HANDSHAKE_AUTH) {
988 if (SSL_is_server(peer->ssl)) {
989 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(peer->ssl);
990
991 if (sc == NULL) {
992 peer->status = PEER_ERROR;
993 return;
994 }
995 /* Make the server believe it's received the extension */
996 if (test_ctx->extra.server.force_pha)
997 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED;
998 ret = SSL_verify_client_post_handshake(peer->ssl);
999 if (!ret) {
1000 peer->status = PEER_ERROR;
1001 return;
1002 }
1003 }
1004 do_handshake_step(peer);
1005 /*
1006 * This is a one step handshake. We shouldn't get anything other than
1007 * PEER_SUCCESS
1008 */
1009 if (peer->status != PEER_SUCCESS)
1010 peer->status = PEER_ERROR;
1011 return;
1012 }
1013
1014 /*
1015 * The SSL object is still expecting app data, even though it's going to
1016 * get a handshake message. We try to read, and it should fail - after which
1017 * we should be in a handshake
1018 */
1019 ret = SSL_read(peer->ssl, &buf, sizeof(buf));
1020 if (ret >= 0) {
1021 /*
1022 * We're not actually expecting data - we're expecting a reneg to
1023 * start
1024 */
1025 peer->status = PEER_ERROR;
1026 return;
1027 } else {
1028 int error = SSL_get_error(peer->ssl, ret);
1029 if (error != SSL_ERROR_WANT_READ) {
1030 peer->status = PEER_ERROR;
1031 return;
1032 }
1033 /* If we're not in init yet then we're not done with setup yet */
1034 if (!SSL_in_init(peer->ssl))
1035 return;
1036 }
1037
1038 peer->status = PEER_SUCCESS;
1039 }
1040
1041
1042 /*
1043 * RFC 5246 says:
1044 *
1045 * Note that as of TLS 1.1,
1046 * failure to properly close a connection no longer requires that a
1047 * session not be resumed. This is a change from TLS 1.0 to conform
1048 * with widespread implementation practice.
1049 *
1050 * However,
1051 * (a) OpenSSL requires that a connection be shutdown for all protocol versions.
1052 * (b) We test lower versions, too.
1053 * So we just implement shutdown. We do a full bidirectional shutdown so that we
1054 * can compare sent and received close_notify alerts and get some test coverage
1055 * for SSL_shutdown as a bonus.
1056 */
do_shutdown_step(PEER * peer)1057 static void do_shutdown_step(PEER *peer)
1058 {
1059 int ret;
1060
1061 if (!TEST_int_eq(peer->status, PEER_RETRY)) {
1062 peer->status = PEER_TEST_FAILURE;
1063 return;
1064 }
1065 ret = SSL_shutdown(peer->ssl);
1066
1067 if (ret == 1) {
1068 peer->status = PEER_SUCCESS;
1069 } else if (ret < 0) { /* On 0, we retry. */
1070 int error = SSL_get_error(peer->ssl, ret);
1071
1072 if (error != SSL_ERROR_WANT_READ && error != SSL_ERROR_WANT_WRITE)
1073 peer->status = PEER_ERROR;
1074 }
1075 }
1076
1077 typedef enum {
1078 HANDSHAKE,
1079 RENEG_APPLICATION_DATA,
1080 RENEG_SETUP,
1081 RENEG_HANDSHAKE,
1082 APPLICATION_DATA,
1083 SHUTDOWN,
1084 CONNECTION_DONE
1085 } connect_phase_t;
1086
1087
renegotiate_op(const SSL_TEST_CTX * test_ctx)1088 static int renegotiate_op(const SSL_TEST_CTX *test_ctx)
1089 {
1090 switch (test_ctx->handshake_mode) {
1091 case SSL_TEST_HANDSHAKE_RENEG_SERVER:
1092 case SSL_TEST_HANDSHAKE_RENEG_CLIENT:
1093 return 1;
1094 default:
1095 return 0;
1096 }
1097 }
post_handshake_op(const SSL_TEST_CTX * test_ctx)1098 static int post_handshake_op(const SSL_TEST_CTX *test_ctx)
1099 {
1100 switch (test_ctx->handshake_mode) {
1101 case SSL_TEST_HANDSHAKE_KEY_UPDATE_CLIENT:
1102 case SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER:
1103 case SSL_TEST_HANDSHAKE_POST_HANDSHAKE_AUTH:
1104 return 1;
1105 default:
1106 return 0;
1107 }
1108 }
1109
next_phase(const SSL_TEST_CTX * test_ctx,connect_phase_t phase)1110 static connect_phase_t next_phase(const SSL_TEST_CTX *test_ctx,
1111 connect_phase_t phase)
1112 {
1113 switch (phase) {
1114 case HANDSHAKE:
1115 if (renegotiate_op(test_ctx) || post_handshake_op(test_ctx))
1116 return RENEG_APPLICATION_DATA;
1117 return APPLICATION_DATA;
1118 case RENEG_APPLICATION_DATA:
1119 return RENEG_SETUP;
1120 case RENEG_SETUP:
1121 if (post_handshake_op(test_ctx))
1122 return APPLICATION_DATA;
1123 return RENEG_HANDSHAKE;
1124 case RENEG_HANDSHAKE:
1125 return APPLICATION_DATA;
1126 case APPLICATION_DATA:
1127 return SHUTDOWN;
1128 case SHUTDOWN:
1129 return CONNECTION_DONE;
1130 case CONNECTION_DONE:
1131 TEST_error("Trying to progress after connection done");
1132 break;
1133 }
1134 return -1;
1135 }
1136
do_connect_step(const SSL_TEST_CTX * test_ctx,PEER * peer,connect_phase_t phase)1137 static void do_connect_step(const SSL_TEST_CTX *test_ctx, PEER *peer,
1138 connect_phase_t phase)
1139 {
1140 switch (phase) {
1141 case HANDSHAKE:
1142 do_handshake_step(peer);
1143 break;
1144 case RENEG_APPLICATION_DATA:
1145 do_app_data_step(peer);
1146 break;
1147 case RENEG_SETUP:
1148 do_reneg_setup_step(test_ctx, peer);
1149 break;
1150 case RENEG_HANDSHAKE:
1151 do_handshake_step(peer);
1152 break;
1153 case APPLICATION_DATA:
1154 do_app_data_step(peer);
1155 break;
1156 case SHUTDOWN:
1157 do_shutdown_step(peer);
1158 break;
1159 case CONNECTION_DONE:
1160 TEST_error("Action after connection done");
1161 break;
1162 }
1163 }
1164
1165 typedef enum {
1166 /* Both parties succeeded. */
1167 HANDSHAKE_SUCCESS,
1168 /* Client errored. */
1169 CLIENT_ERROR,
1170 /* Server errored. */
1171 SERVER_ERROR,
1172 /* Peers are in inconsistent state. */
1173 INTERNAL_ERROR,
1174 /* One or both peers not done. */
1175 HANDSHAKE_RETRY
1176 } handshake_status_t;
1177
1178 /*
1179 * Determine the handshake outcome.
1180 * last_status: the status of the peer to have acted last.
1181 * previous_status: the status of the peer that didn't act last.
1182 * client_spoke_last: 1 if the client went last.
1183 */
handshake_status(peer_status_t last_status,peer_status_t previous_status,int client_spoke_last)1184 static handshake_status_t handshake_status(peer_status_t last_status,
1185 peer_status_t previous_status,
1186 int client_spoke_last)
1187 {
1188 switch (last_status) {
1189 case PEER_TEST_FAILURE:
1190 return INTERNAL_ERROR;
1191
1192 case PEER_WAITING:
1193 /* Shouldn't ever happen */
1194 return INTERNAL_ERROR;
1195
1196 case PEER_SUCCESS:
1197 switch (previous_status) {
1198 case PEER_TEST_FAILURE:
1199 return INTERNAL_ERROR;
1200 case PEER_SUCCESS:
1201 /* Both succeeded. */
1202 return HANDSHAKE_SUCCESS;
1203 case PEER_WAITING:
1204 case PEER_RETRY:
1205 /* Let the first peer finish. */
1206 return HANDSHAKE_RETRY;
1207 case PEER_ERROR:
1208 /*
1209 * Second peer succeeded despite the fact that the first peer
1210 * already errored. This shouldn't happen.
1211 */
1212 return INTERNAL_ERROR;
1213 }
1214 break;
1215
1216 case PEER_RETRY:
1217 return HANDSHAKE_RETRY;
1218
1219 case PEER_ERROR:
1220 switch (previous_status) {
1221 case PEER_TEST_FAILURE:
1222 return INTERNAL_ERROR;
1223 case PEER_WAITING:
1224 /* The client failed immediately before sending the ClientHello */
1225 return client_spoke_last ? CLIENT_ERROR : INTERNAL_ERROR;
1226 case PEER_SUCCESS:
1227 /* First peer succeeded but second peer errored. */
1228 return client_spoke_last ? CLIENT_ERROR : SERVER_ERROR;
1229 case PEER_RETRY:
1230 /* We errored; let the peer finish. */
1231 return HANDSHAKE_RETRY;
1232 case PEER_ERROR:
1233 /* Both peers errored. Return the one that errored first. */
1234 return client_spoke_last ? SERVER_ERROR : CLIENT_ERROR;
1235 }
1236 }
1237 /* Control should never reach here. */
1238 return INTERNAL_ERROR;
1239 }
1240
1241 /* Convert unsigned char buf's that shouldn't contain any NUL-bytes to char. */
dup_str(const unsigned char * in,size_t len)1242 static char *dup_str(const unsigned char *in, size_t len)
1243 {
1244 char *ret = NULL;
1245
1246 if (len == 0)
1247 return NULL;
1248
1249 /* Assert that the string does not contain NUL-bytes. */
1250 if (TEST_size_t_eq(OPENSSL_strnlen((const char*)(in), len), len))
1251 TEST_ptr(ret = OPENSSL_strndup((const char*)(in), len));
1252 return ret;
1253 }
1254
pkey_type(EVP_PKEY * pkey)1255 static int pkey_type(EVP_PKEY *pkey)
1256 {
1257 if (EVP_PKEY_is_a(pkey, "EC")) {
1258 char name[80];
1259 size_t name_len;
1260
1261 if (!EVP_PKEY_get_group_name(pkey, name, sizeof(name), &name_len))
1262 return NID_undef;
1263 return OBJ_txt2nid(name);
1264 }
1265 return EVP_PKEY_get_id(pkey);
1266 }
1267
peer_pkey_type(SSL * s)1268 static int peer_pkey_type(SSL *s)
1269 {
1270 X509 *x = SSL_get0_peer_certificate(s);
1271
1272 if (x != NULL)
1273 return pkey_type(X509_get0_pubkey(x));
1274 return NID_undef;
1275 }
1276
1277 #if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
set_sock_as_sctp(int sock)1278 static int set_sock_as_sctp(int sock)
1279 {
1280 struct sctp_assocparams assocparams;
1281 struct sctp_rtoinfo rto_info;
1282 BIO *tmpbio;
1283
1284 /*
1285 * To allow tests to fail fast (within a second or so), reduce the
1286 * retransmission timeouts and the number of retransmissions.
1287 */
1288 memset(&rto_info, 0, sizeof(struct sctp_rtoinfo));
1289 rto_info.srto_initial = 100;
1290 rto_info.srto_max = 200;
1291 rto_info.srto_min = 50;
1292 (void)setsockopt(sock, IPPROTO_SCTP, SCTP_RTOINFO,
1293 (const void *)&rto_info, sizeof(struct sctp_rtoinfo));
1294 memset(&assocparams, 0, sizeof(struct sctp_assocparams));
1295 assocparams.sasoc_asocmaxrxt = 2;
1296 (void)setsockopt(sock, IPPROTO_SCTP, SCTP_ASSOCINFO,
1297 (const void *)&assocparams,
1298 sizeof(struct sctp_assocparams));
1299
1300 /*
1301 * For SCTP we have to set various options on the socket prior to
1302 * connecting. This is done automatically by BIO_new_dgram_sctp().
1303 * We don't actually need the created BIO though so we free it again
1304 * immediately.
1305 */
1306 tmpbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
1307
1308 if (tmpbio == NULL)
1309 return 0;
1310 BIO_free(tmpbio);
1311
1312 return 1;
1313 }
1314
create_sctp_socks(int * ssock,int * csock)1315 static int create_sctp_socks(int *ssock, int *csock)
1316 {
1317 BIO_ADDRINFO *res = NULL;
1318 const BIO_ADDRINFO *ai = NULL;
1319 int lsock = INVALID_SOCKET, asock = INVALID_SOCKET;
1320 int consock = INVALID_SOCKET;
1321 int ret = 0;
1322 int family = 0;
1323
1324 if (BIO_sock_init() != 1)
1325 return 0;
1326
1327 /*
1328 * Port is 4463. It could be anything. It will fail if it's already being
1329 * used for some other SCTP service. It seems unlikely though so we don't
1330 * worry about it here.
1331 */
1332 if (!BIO_lookup_ex(NULL, "4463", BIO_LOOKUP_SERVER, family, SOCK_STREAM,
1333 IPPROTO_SCTP, &res))
1334 return 0;
1335
1336 for (ai = res; ai != NULL; ai = BIO_ADDRINFO_next(ai)) {
1337 family = BIO_ADDRINFO_family(ai);
1338 lsock = BIO_socket(family, SOCK_STREAM, IPPROTO_SCTP, 0);
1339 if (lsock == INVALID_SOCKET) {
1340 /* Maybe the kernel doesn't support the socket family, even if
1341 * BIO_lookup() added it in the returned result...
1342 */
1343 continue;
1344 }
1345
1346 if (!set_sock_as_sctp(lsock)
1347 || !BIO_listen(lsock, BIO_ADDRINFO_address(ai),
1348 BIO_SOCK_REUSEADDR)) {
1349 BIO_closesocket(lsock);
1350 lsock = INVALID_SOCKET;
1351 continue;
1352 }
1353
1354 /* Success, don't try any more addresses */
1355 break;
1356 }
1357
1358 if (lsock == INVALID_SOCKET)
1359 goto err;
1360
1361 BIO_ADDRINFO_free(res);
1362 res = NULL;
1363
1364 if (!BIO_lookup_ex(NULL, "4463", BIO_LOOKUP_CLIENT, family, SOCK_STREAM,
1365 IPPROTO_SCTP, &res))
1366 goto err;
1367
1368 consock = BIO_socket(family, SOCK_STREAM, IPPROTO_SCTP, 0);
1369 if (consock == INVALID_SOCKET)
1370 goto err;
1371
1372 if (!set_sock_as_sctp(consock)
1373 || !BIO_connect(consock, BIO_ADDRINFO_address(res), 0)
1374 || !BIO_socket_nbio(consock, 1))
1375 goto err;
1376
1377 asock = BIO_accept_ex(lsock, NULL, BIO_SOCK_NONBLOCK);
1378 if (asock == INVALID_SOCKET)
1379 goto err;
1380
1381 *csock = consock;
1382 *ssock = asock;
1383 consock = asock = INVALID_SOCKET;
1384 ret = 1;
1385
1386 err:
1387 BIO_ADDRINFO_free(res);
1388 if (consock != INVALID_SOCKET)
1389 BIO_closesocket(consock);
1390 if (lsock != INVALID_SOCKET)
1391 BIO_closesocket(lsock);
1392 if (asock != INVALID_SOCKET)
1393 BIO_closesocket(asock);
1394 return ret;
1395 }
1396 #endif
1397
1398 /*
1399 * Note that |extra| points to the correct client/server configuration
1400 * within |test_ctx|. When configuring the handshake, general mode settings
1401 * are taken from |test_ctx|, and client/server-specific settings should be
1402 * taken from |extra|.
1403 *
1404 * The configuration code should never reach into |test_ctx->extra| or
1405 * |test_ctx->resume_extra| directly.
1406 *
1407 * (We could refactor test mode settings into a substructure. This would result
1408 * in cleaner argument passing but would complicate the test configuration
1409 * parsing.)
1410 */
do_handshake_internal(SSL_CTX * server_ctx,SSL_CTX * server2_ctx,SSL_CTX * client_ctx,const SSL_TEST_CTX * test_ctx,const SSL_TEST_EXTRA_CONF * extra,SSL_SESSION * session_in,SSL_SESSION * serv_sess_in,SSL_SESSION ** session_out,SSL_SESSION ** serv_sess_out)1411 static HANDSHAKE_RESULT *do_handshake_internal(
1412 SSL_CTX *server_ctx, SSL_CTX *server2_ctx, SSL_CTX *client_ctx,
1413 const SSL_TEST_CTX *test_ctx, const SSL_TEST_EXTRA_CONF *extra,
1414 SSL_SESSION *session_in, SSL_SESSION *serv_sess_in,
1415 SSL_SESSION **session_out, SSL_SESSION **serv_sess_out)
1416 {
1417 PEER server, client;
1418 BIO *client_to_server = NULL, *server_to_client = NULL;
1419 HANDSHAKE_EX_DATA server_ex_data, client_ex_data;
1420 CTX_DATA client_ctx_data, server_ctx_data, server2_ctx_data;
1421 HANDSHAKE_RESULT *ret = HANDSHAKE_RESULT_new();
1422 int client_turn = 1, client_turn_count = 0, client_wait_count = 0;
1423 connect_phase_t phase = HANDSHAKE;
1424 handshake_status_t status = HANDSHAKE_RETRY;
1425 const unsigned char* tick = NULL;
1426 size_t tick_len = 0;
1427 const unsigned char* sess_id = NULL;
1428 unsigned int sess_id_len = 0;
1429 SSL_SESSION* sess = NULL;
1430 const unsigned char *proto = NULL;
1431 /* API dictates unsigned int rather than size_t. */
1432 unsigned int proto_len = 0;
1433 EVP_PKEY *tmp_key;
1434 const STACK_OF(X509_NAME) *names;
1435 time_t start;
1436 const char* cipher;
1437
1438 if (ret == NULL)
1439 return NULL;
1440
1441 memset(&server_ctx_data, 0, sizeof(server_ctx_data));
1442 memset(&server2_ctx_data, 0, sizeof(server2_ctx_data));
1443 memset(&client_ctx_data, 0, sizeof(client_ctx_data));
1444 memset(&server, 0, sizeof(server));
1445 memset(&client, 0, sizeof(client));
1446 memset(&server_ex_data, 0, sizeof(server_ex_data));
1447 memset(&client_ex_data, 0, sizeof(client_ex_data));
1448
1449 if (!configure_handshake_ctx(server_ctx, server2_ctx, client_ctx,
1450 test_ctx, extra, &server_ctx_data,
1451 &server2_ctx_data, &client_ctx_data)) {
1452 TEST_note("configure_handshake_ctx");
1453 HANDSHAKE_RESULT_free(ret);
1454 return NULL;
1455 }
1456
1457 #if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
1458 if (test_ctx->enable_client_sctp_label_bug)
1459 SSL_CTX_set_mode(client_ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1460 if (test_ctx->enable_server_sctp_label_bug)
1461 SSL_CTX_set_mode(server_ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1462 #endif
1463
1464 /* Setup SSL and buffers; additional configuration happens below. */
1465 if (!create_peer(&server, server_ctx)) {
1466 TEST_note("creating server context");
1467 goto err;
1468 }
1469 if (!create_peer(&client, client_ctx)) {
1470 TEST_note("creating client context");
1471 goto err;
1472 }
1473
1474 server.bytes_to_write = client.bytes_to_read = test_ctx->app_data_size;
1475 client.bytes_to_write = server.bytes_to_read = test_ctx->app_data_size;
1476
1477 configure_handshake_ssl(server.ssl, client.ssl, extra);
1478 if (session_in != NULL) {
1479 SSL_SESSION_get_id(serv_sess_in, &sess_id_len);
1480 /* In case we're testing resumption without tickets. */
1481 if ((sess_id_len > 0
1482 && !TEST_true(SSL_CTX_add_session(server_ctx,
1483 serv_sess_in)))
1484 || !TEST_true(SSL_set_session(client.ssl, session_in)))
1485 goto err;
1486 sess_id_len = 0;
1487 }
1488
1489 ret->result = SSL_TEST_INTERNAL_ERROR;
1490
1491 if (test_ctx->use_sctp) {
1492 #if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
1493 int csock, ssock;
1494
1495 if (create_sctp_socks(&ssock, &csock)) {
1496 client_to_server = BIO_new_dgram_sctp(csock, BIO_CLOSE);
1497 server_to_client = BIO_new_dgram_sctp(ssock, BIO_CLOSE);
1498 }
1499 #endif
1500 } else {
1501 client_to_server = BIO_new(BIO_s_mem());
1502 server_to_client = BIO_new(BIO_s_mem());
1503 }
1504
1505 if (!TEST_ptr(client_to_server)
1506 || !TEST_ptr(server_to_client))
1507 goto err;
1508
1509 /* Non-blocking bio. */
1510 BIO_set_nbio(client_to_server, 1);
1511 BIO_set_nbio(server_to_client, 1);
1512
1513 SSL_set_connect_state(client.ssl);
1514 SSL_set_accept_state(server.ssl);
1515
1516 /* The bios are now owned by the SSL object. */
1517 if (test_ctx->use_sctp) {
1518 SSL_set_bio(client.ssl, client_to_server, client_to_server);
1519 SSL_set_bio(server.ssl, server_to_client, server_to_client);
1520 } else {
1521 SSL_set_bio(client.ssl, server_to_client, client_to_server);
1522 if (!TEST_int_gt(BIO_up_ref(server_to_client), 0)
1523 || !TEST_int_gt(BIO_up_ref(client_to_server), 0))
1524 goto err;
1525 SSL_set_bio(server.ssl, client_to_server, server_to_client);
1526 }
1527
1528 ex_data_idx = SSL_get_ex_new_index(0, "ex data", NULL, NULL, NULL);
1529 if (!TEST_int_ge(ex_data_idx, 0)
1530 || !TEST_int_eq(SSL_set_ex_data(server.ssl, ex_data_idx, &server_ex_data), 1)
1531 || !TEST_int_eq(SSL_set_ex_data(client.ssl, ex_data_idx, &client_ex_data), 1))
1532 goto err;
1533
1534 SSL_set_info_callback(server.ssl, &info_cb);
1535 SSL_set_info_callback(client.ssl, &info_cb);
1536
1537 client.status = PEER_RETRY;
1538 server.status = PEER_WAITING;
1539
1540 start = time(NULL);
1541
1542 /*
1543 * Half-duplex handshake loop.
1544 * Client and server speak to each other synchronously in the same process.
1545 * We use non-blocking BIOs, so whenever one peer blocks for read, it
1546 * returns PEER_RETRY to indicate that it's the other peer's turn to write.
1547 * The handshake succeeds once both peers have succeeded. If one peer
1548 * errors out, we also let the other peer retry (and presumably fail).
1549 */
1550 for (;;) {
1551 if (client_turn) {
1552 do_connect_step(test_ctx, &client, phase);
1553 status = handshake_status(client.status, server.status,
1554 1 /* client went last */);
1555 if (server.status == PEER_WAITING)
1556 server.status = PEER_RETRY;
1557 } else {
1558 do_connect_step(test_ctx, &server, phase);
1559 status = handshake_status(server.status, client.status,
1560 0 /* server went last */);
1561 }
1562
1563 switch (status) {
1564 case HANDSHAKE_SUCCESS:
1565 client_turn_count = 0;
1566 phase = next_phase(test_ctx, phase);
1567 if (phase == CONNECTION_DONE) {
1568 ret->result = SSL_TEST_SUCCESS;
1569 goto err;
1570 } else {
1571 client.status = server.status = PEER_RETRY;
1572 /*
1573 * For now, client starts each phase. Since each phase is
1574 * started separately, we can later control this more
1575 * precisely, for example, to test client-initiated and
1576 * server-initiated shutdown.
1577 */
1578 client_turn = 1;
1579 break;
1580 }
1581 case CLIENT_ERROR:
1582 ret->result = SSL_TEST_CLIENT_FAIL;
1583 goto err;
1584 case SERVER_ERROR:
1585 ret->result = SSL_TEST_SERVER_FAIL;
1586 goto err;
1587 case INTERNAL_ERROR:
1588 ret->result = SSL_TEST_INTERNAL_ERROR;
1589 goto err;
1590 case HANDSHAKE_RETRY:
1591 if (test_ctx->use_sctp) {
1592 if (time(NULL) - start > 3) {
1593 /*
1594 * We've waited for too long. Give up.
1595 */
1596 ret->result = SSL_TEST_INTERNAL_ERROR;
1597 goto err;
1598 }
1599 /*
1600 * With "real" sockets we only swap to processing the peer
1601 * if they are expecting to retry. Otherwise we just retry the
1602 * same endpoint again.
1603 */
1604 if ((client_turn && server.status == PEER_RETRY)
1605 || (!client_turn && client.status == PEER_RETRY))
1606 client_turn ^= 1;
1607 } else {
1608 if (client_turn_count++ >= 2000) {
1609 /*
1610 * At this point, there's been so many PEER_RETRY in a row
1611 * that it's likely both sides are stuck waiting for a read.
1612 * It's time to give up.
1613 */
1614 ret->result = SSL_TEST_INTERNAL_ERROR;
1615 goto err;
1616 }
1617 if (client_turn && server.status == PEER_SUCCESS) {
1618 /*
1619 * The server may finish before the client because the
1620 * client spends some turns processing NewSessionTickets.
1621 */
1622 if (client_wait_count++ >= 2) {
1623 ret->result = SSL_TEST_INTERNAL_ERROR;
1624 goto err;
1625 }
1626 } else {
1627 /* Continue. */
1628 client_turn ^= 1;
1629 }
1630 }
1631 break;
1632 }
1633 }
1634 err:
1635 ret->server_alert_sent = server_ex_data.alert_sent;
1636 ret->server_num_fatal_alerts_sent = server_ex_data.num_fatal_alerts_sent;
1637 ret->server_alert_received = client_ex_data.alert_received;
1638 ret->client_alert_sent = client_ex_data.alert_sent;
1639 ret->client_num_fatal_alerts_sent = client_ex_data.num_fatal_alerts_sent;
1640 ret->client_alert_received = server_ex_data.alert_received;
1641 ret->server_protocol = SSL_version(server.ssl);
1642 ret->client_protocol = SSL_version(client.ssl);
1643 ret->servername = server_ex_data.servername;
1644 if ((sess = SSL_get0_session(client.ssl)) != NULL) {
1645 SSL_SESSION_get0_ticket(sess, &tick, &tick_len);
1646 sess_id = SSL_SESSION_get_id(sess, &sess_id_len);
1647 }
1648 if (tick == NULL || tick_len == 0)
1649 ret->session_ticket = SSL_TEST_SESSION_TICKET_NO;
1650 else
1651 ret->session_ticket = SSL_TEST_SESSION_TICKET_YES;
1652 ret->compression = (SSL_get_current_compression(client.ssl) == NULL)
1653 ? SSL_TEST_COMPRESSION_NO
1654 : SSL_TEST_COMPRESSION_YES;
1655 if (sess_id == NULL || sess_id_len == 0)
1656 ret->session_id = SSL_TEST_SESSION_ID_NO;
1657 else
1658 ret->session_id = SSL_TEST_SESSION_ID_YES;
1659 ret->session_ticket_do_not_call = server_ex_data.session_ticket_do_not_call;
1660
1661 if (extra->client.verify_callback == SSL_TEST_VERIFY_RETRY_ONCE
1662 && n_retries != -1)
1663 ret->result = SSL_TEST_SERVER_FAIL;
1664
1665 #ifndef OPENSSL_NO_NEXTPROTONEG
1666 SSL_get0_next_proto_negotiated(client.ssl, &proto, &proto_len);
1667 ret->client_npn_negotiated = dup_str(proto, proto_len);
1668
1669 SSL_get0_next_proto_negotiated(server.ssl, &proto, &proto_len);
1670 ret->server_npn_negotiated = dup_str(proto, proto_len);
1671 #endif
1672
1673 SSL_get0_alpn_selected(client.ssl, &proto, &proto_len);
1674 ret->client_alpn_negotiated = dup_str(proto, proto_len);
1675
1676 SSL_get0_alpn_selected(server.ssl, &proto, &proto_len);
1677 ret->server_alpn_negotiated = dup_str(proto, proto_len);
1678
1679 if ((sess = SSL_get0_session(server.ssl)) != NULL) {
1680 SSL_SESSION_get0_ticket_appdata(sess, (void**)&tick, &tick_len);
1681 ret->result_session_ticket_app_data = OPENSSL_strndup((const char*)tick, tick_len);
1682 }
1683
1684 ret->client_resumed = SSL_session_reused(client.ssl);
1685 ret->server_resumed = SSL_session_reused(server.ssl);
1686
1687 cipher = SSL_CIPHER_get_name(SSL_get_current_cipher(client.ssl));
1688 ret->cipher = dup_str((const unsigned char*)cipher, strlen(cipher));
1689
1690 if (session_out != NULL)
1691 *session_out = SSL_get1_session(client.ssl);
1692 if (serv_sess_out != NULL) {
1693 SSL_SESSION *tmp = SSL_get_session(server.ssl);
1694
1695 /*
1696 * We create a fresh copy that is not in the server session ctx linked
1697 * list.
1698 */
1699 if (tmp != NULL)
1700 *serv_sess_out = SSL_SESSION_dup(tmp);
1701 }
1702
1703 if (SSL_get_peer_tmp_key(client.ssl, &tmp_key)) {
1704 ret->tmp_key_type = pkey_type(tmp_key);
1705 EVP_PKEY_free(tmp_key);
1706 }
1707
1708 SSL_get_peer_signature_nid(client.ssl, &ret->server_sign_hash);
1709 SSL_get_peer_signature_nid(server.ssl, &ret->client_sign_hash);
1710
1711 SSL_get_peer_signature_type_nid(client.ssl, &ret->server_sign_type);
1712 SSL_get_peer_signature_type_nid(server.ssl, &ret->client_sign_type);
1713
1714 names = SSL_get0_peer_CA_list(client.ssl);
1715 if (names == NULL)
1716 ret->client_ca_names = NULL;
1717 else
1718 ret->client_ca_names = SSL_dup_CA_list(names);
1719
1720 names = SSL_get0_peer_CA_list(server.ssl);
1721 if (names == NULL)
1722 ret->server_ca_names = NULL;
1723 else
1724 ret->server_ca_names = SSL_dup_CA_list(names);
1725
1726 ret->server_cert_type = peer_pkey_type(client.ssl);
1727 ret->client_cert_type = peer_pkey_type(server.ssl);
1728
1729 ctx_data_free_data(&server_ctx_data);
1730 ctx_data_free_data(&server2_ctx_data);
1731 ctx_data_free_data(&client_ctx_data);
1732
1733 peer_free_data(&server);
1734 peer_free_data(&client);
1735 return ret;
1736 }
1737
do_handshake(SSL_CTX * server_ctx,SSL_CTX * server2_ctx,SSL_CTX * client_ctx,SSL_CTX * resume_server_ctx,SSL_CTX * resume_client_ctx,const SSL_TEST_CTX * test_ctx)1738 HANDSHAKE_RESULT *do_handshake(SSL_CTX *server_ctx, SSL_CTX *server2_ctx,
1739 SSL_CTX *client_ctx, SSL_CTX *resume_server_ctx,
1740 SSL_CTX *resume_client_ctx,
1741 const SSL_TEST_CTX *test_ctx)
1742 {
1743 HANDSHAKE_RESULT *result;
1744 SSL_SESSION *session = NULL, *serv_sess = NULL;
1745
1746 result = do_handshake_internal(server_ctx, server2_ctx, client_ctx,
1747 test_ctx, &test_ctx->extra,
1748 NULL, NULL, &session, &serv_sess);
1749 if (result == NULL
1750 || test_ctx->handshake_mode != SSL_TEST_HANDSHAKE_RESUME
1751 || result->result == SSL_TEST_INTERNAL_ERROR)
1752 goto end;
1753
1754 if (result->result != SSL_TEST_SUCCESS) {
1755 result->result = SSL_TEST_FIRST_HANDSHAKE_FAILED;
1756 goto end;
1757 }
1758
1759 HANDSHAKE_RESULT_free(result);
1760 /* We don't support SNI on second handshake yet, so server2_ctx is NULL. */
1761 result = do_handshake_internal(resume_server_ctx, NULL, resume_client_ctx,
1762 test_ctx, &test_ctx->resume_extra,
1763 session, serv_sess, NULL, NULL);
1764 end:
1765 SSL_SESSION_free(session);
1766 SSL_SESSION_free(serv_sess);
1767 return result;
1768 }
1769
