1 /*
2 * Copyright 2016-2024 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 if (len == 0) {
352 *out = NULL;
353 *outlen = 0;
354 return 1;
355 }
356
357 /* Should never have reuse. */
358 if (!TEST_ptr_null(*out)
359 /* Test values are small, so we omit length limit checks. */
360 || !TEST_ptr(*out = OPENSSL_malloc(len + 1)))
361 return 0;
362 *outlen = len + 1;
363
364 /*
365 * foo => '3', 'f', 'o', 'o'
366 * foo,bar => '3', 'f', 'o', 'o', '3', 'b', 'a', 'r'
367 */
368 memcpy(*out + 1, protos, len);
369
370 prefix = 0;
371 i = prefix + 1;
372 while (i <= len) {
373 if ((*out)[i] == ',') {
374 if (!TEST_int_gt(i - 1, prefix))
375 goto err;
376 (*out)[prefix] = (unsigned char)(i - 1 - prefix);
377 prefix = i;
378 }
379 i++;
380 }
381 if (!TEST_int_gt(len, prefix))
382 goto err;
383 (*out)[prefix] = (unsigned char)(len - prefix);
384 return 1;
385
386 err:
387 OPENSSL_free(*out);
388 *out = NULL;
389 return 0;
390 }
391
392 #ifndef OPENSSL_NO_NEXTPROTONEG
393 /*
394 * The client SHOULD select the first protocol advertised by the server that it
395 * also supports. In the event that the client doesn't support any of server's
396 * protocols, or the server doesn't advertise any, it SHOULD select the first
397 * protocol that it supports.
398 */
client_npn_cb(SSL * s,unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)399 static int client_npn_cb(SSL *s, unsigned char **out, unsigned char *outlen,
400 const unsigned char *in, unsigned int inlen,
401 void *arg)
402 {
403 CTX_DATA *ctx_data = (CTX_DATA*)(arg);
404 int ret;
405
406 ret = SSL_select_next_proto(out, outlen, in, inlen,
407 ctx_data->npn_protocols,
408 ctx_data->npn_protocols_len);
409 /* Accept both OPENSSL_NPN_NEGOTIATED and OPENSSL_NPN_NO_OVERLAP. */
410 return TEST_true(ret == OPENSSL_NPN_NEGOTIATED || ret == OPENSSL_NPN_NO_OVERLAP)
411 ? SSL_TLSEXT_ERR_OK : SSL_TLSEXT_ERR_ALERT_FATAL;
412 }
413
server_npn_cb(SSL * s,const unsigned char ** data,unsigned int * len,void * arg)414 static int server_npn_cb(SSL *s, const unsigned char **data,
415 unsigned int *len, void *arg)
416 {
417 CTX_DATA *ctx_data = (CTX_DATA*)(arg);
418 *data = ctx_data->npn_protocols;
419 *len = ctx_data->npn_protocols_len;
420 return SSL_TLSEXT_ERR_OK;
421 }
422 #endif
423
424 /*
425 * The server SHOULD select the most highly preferred protocol that it supports
426 * and that is also advertised by the client. In the event that the server
427 * supports no protocols that the client advertises, then the server SHALL
428 * respond with a fatal "no_application_protocol" alert.
429 */
server_alpn_cb(SSL * s,const unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)430 static int server_alpn_cb(SSL *s, const unsigned char **out,
431 unsigned char *outlen, const unsigned char *in,
432 unsigned int inlen, void *arg)
433 {
434 CTX_DATA *ctx_data = (CTX_DATA*)(arg);
435 int ret;
436
437 /* SSL_select_next_proto isn't const-correct... */
438 unsigned char *tmp_out;
439
440 /*
441 * The result points either to |in| or to |ctx_data->alpn_protocols|.
442 * The callback is allowed to point to |in| or to a long-lived buffer,
443 * so we can return directly without storing a copy.
444 */
445 ret = SSL_select_next_proto(&tmp_out, outlen,
446 ctx_data->alpn_protocols,
447 ctx_data->alpn_protocols_len, in, inlen);
448
449 *out = tmp_out;
450 /* Unlike NPN, we don't tolerate a mismatch. */
451 return ret == OPENSSL_NPN_NEGOTIATED ? SSL_TLSEXT_ERR_OK
452 : SSL_TLSEXT_ERR_ALERT_FATAL;
453 }
454
generate_session_ticket_cb(SSL * s,void * arg)455 static int generate_session_ticket_cb(SSL *s, void *arg)
456 {
457 CTX_DATA *server_ctx_data = arg;
458 SSL_SESSION *ss = SSL_get_session(s);
459 char *app_data = server_ctx_data->session_ticket_app_data;
460
461 if (ss == NULL || app_data == NULL)
462 return 0;
463
464 return SSL_SESSION_set1_ticket_appdata(ss, app_data, strlen(app_data));
465 }
466
decrypt_session_ticket_cb(SSL * s,SSL_SESSION * ss,const unsigned char * keyname,size_t keyname_len,SSL_TICKET_STATUS status,void * arg)467 static int decrypt_session_ticket_cb(SSL *s, SSL_SESSION *ss,
468 const unsigned char *keyname,
469 size_t keyname_len,
470 SSL_TICKET_STATUS status,
471 void *arg)
472 {
473 switch (status) {
474 case SSL_TICKET_EMPTY:
475 case SSL_TICKET_NO_DECRYPT:
476 return SSL_TICKET_RETURN_IGNORE_RENEW;
477 case SSL_TICKET_SUCCESS:
478 return SSL_TICKET_RETURN_USE;
479 case SSL_TICKET_SUCCESS_RENEW:
480 return SSL_TICKET_RETURN_USE_RENEW;
481 default:
482 break;
483 }
484 return SSL_TICKET_RETURN_ABORT;
485 }
486
487 /*
488 * Configure callbacks and other properties that can't be set directly
489 * in the server/client CONF.
490 */
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)491 static int configure_handshake_ctx(SSL_CTX *server_ctx, SSL_CTX *server2_ctx,
492 SSL_CTX *client_ctx,
493 const SSL_TEST_CTX *test,
494 const SSL_TEST_EXTRA_CONF *extra,
495 CTX_DATA *server_ctx_data,
496 CTX_DATA *server2_ctx_data,
497 CTX_DATA *client_ctx_data)
498 {
499 unsigned char *ticket_keys;
500 size_t ticket_key_len;
501
502 if (!TEST_int_eq(SSL_CTX_set_max_send_fragment(server_ctx,
503 test->max_fragment_size), 1))
504 goto err;
505 if (server2_ctx != NULL) {
506 if (!TEST_int_eq(SSL_CTX_set_max_send_fragment(server2_ctx,
507 test->max_fragment_size),
508 1))
509 goto err;
510 }
511 if (!TEST_int_eq(SSL_CTX_set_max_send_fragment(client_ctx,
512 test->max_fragment_size), 1))
513 goto err;
514
515 switch (extra->client.verify_callback) {
516 case SSL_TEST_VERIFY_ACCEPT_ALL:
517 SSL_CTX_set_cert_verify_callback(client_ctx, &verify_accept_cb, NULL);
518 break;
519 case SSL_TEST_VERIFY_RETRY_ONCE:
520 n_retries = 1;
521 SSL_CTX_set_cert_verify_callback(client_ctx, &verify_retry_cb, NULL);
522 break;
523 case SSL_TEST_VERIFY_REJECT_ALL:
524 SSL_CTX_set_cert_verify_callback(client_ctx, &verify_reject_cb, NULL);
525 break;
526 case SSL_TEST_VERIFY_NONE:
527 break;
528 }
529
530 switch (extra->client.max_fragment_len_mode) {
531 case TLSEXT_max_fragment_length_512:
532 case TLSEXT_max_fragment_length_1024:
533 case TLSEXT_max_fragment_length_2048:
534 case TLSEXT_max_fragment_length_4096:
535 case TLSEXT_max_fragment_length_DISABLED:
536 SSL_CTX_set_tlsext_max_fragment_length(
537 client_ctx, extra->client.max_fragment_len_mode);
538 break;
539 }
540
541 /*
542 * Link the two contexts for SNI purposes.
543 * Also do ClientHello callbacks here, as setting both ClientHello and SNI
544 * is bad.
545 */
546 switch (extra->server.servername_callback) {
547 case SSL_TEST_SERVERNAME_IGNORE_MISMATCH:
548 SSL_CTX_set_tlsext_servername_callback(server_ctx, servername_ignore_cb);
549 SSL_CTX_set_tlsext_servername_arg(server_ctx, server2_ctx);
550 break;
551 case SSL_TEST_SERVERNAME_REJECT_MISMATCH:
552 SSL_CTX_set_tlsext_servername_callback(server_ctx, servername_reject_cb);
553 SSL_CTX_set_tlsext_servername_arg(server_ctx, server2_ctx);
554 break;
555 case SSL_TEST_SERVERNAME_CB_NONE:
556 break;
557 case SSL_TEST_SERVERNAME_CLIENT_HELLO_IGNORE_MISMATCH:
558 SSL_CTX_set_client_hello_cb(server_ctx, client_hello_ignore_cb, server2_ctx);
559 break;
560 case SSL_TEST_SERVERNAME_CLIENT_HELLO_REJECT_MISMATCH:
561 SSL_CTX_set_client_hello_cb(server_ctx, client_hello_reject_cb, server2_ctx);
562 break;
563 case SSL_TEST_SERVERNAME_CLIENT_HELLO_NO_V12:
564 SSL_CTX_set_client_hello_cb(server_ctx, client_hello_nov12_cb, server2_ctx);
565 }
566
567 if (extra->server.cert_status != SSL_TEST_CERT_STATUS_NONE) {
568 SSL_CTX_set_tlsext_status_type(client_ctx, TLSEXT_STATUSTYPE_ocsp);
569 SSL_CTX_set_tlsext_status_cb(client_ctx, client_ocsp_cb);
570 SSL_CTX_set_tlsext_status_arg(client_ctx, NULL);
571 SSL_CTX_set_tlsext_status_cb(server_ctx, server_ocsp_cb);
572 SSL_CTX_set_tlsext_status_arg(server_ctx,
573 ((extra->server.cert_status == SSL_TEST_CERT_STATUS_GOOD_RESPONSE)
574 ? &dummy_ocsp_resp_good_val : &dummy_ocsp_resp_bad_val));
575 }
576
577 /*
578 * The initial_ctx/session_ctx always handles the encrypt/decrypt of the
579 * session ticket. This ticket_key callback is assigned to the second
580 * session (assigned via SNI), and should never be invoked
581 */
582 if (server2_ctx != NULL)
583 SSL_CTX_set_tlsext_ticket_key_evp_cb(server2_ctx,
584 do_not_call_session_ticket_cb);
585
586 if (extra->server.broken_session_ticket) {
587 SSL_CTX_set_tlsext_ticket_key_evp_cb(server_ctx,
588 broken_session_ticket_cb);
589 }
590 #ifndef OPENSSL_NO_NEXTPROTONEG
591 if (extra->server.npn_protocols != NULL) {
592 if (!TEST_true(parse_protos(extra->server.npn_protocols,
593 &server_ctx_data->npn_protocols,
594 &server_ctx_data->npn_protocols_len)))
595 goto err;
596 SSL_CTX_set_npn_advertised_cb(server_ctx, server_npn_cb,
597 server_ctx_data);
598 }
599 if (extra->server2.npn_protocols != NULL) {
600 if (!TEST_true(parse_protos(extra->server2.npn_protocols,
601 &server2_ctx_data->npn_protocols,
602 &server2_ctx_data->npn_protocols_len))
603 || !TEST_ptr(server2_ctx))
604 goto err;
605 SSL_CTX_set_npn_advertised_cb(server2_ctx, server_npn_cb,
606 server2_ctx_data);
607 }
608 if (extra->client.npn_protocols != NULL) {
609 if (!TEST_true(parse_protos(extra->client.npn_protocols,
610 &client_ctx_data->npn_protocols,
611 &client_ctx_data->npn_protocols_len)))
612 goto err;
613 SSL_CTX_set_next_proto_select_cb(client_ctx, client_npn_cb,
614 client_ctx_data);
615 }
616 #endif
617 if (extra->server.alpn_protocols != NULL) {
618 if (!TEST_true(parse_protos(extra->server.alpn_protocols,
619 &server_ctx_data->alpn_protocols,
620 &server_ctx_data->alpn_protocols_len)))
621 goto err;
622 SSL_CTX_set_alpn_select_cb(server_ctx, server_alpn_cb, server_ctx_data);
623 }
624 if (extra->server2.alpn_protocols != NULL) {
625 if (!TEST_ptr(server2_ctx)
626 || !TEST_true(parse_protos(extra->server2.alpn_protocols,
627 &server2_ctx_data->alpn_protocols,
628 &server2_ctx_data->alpn_protocols_len
629 )))
630 goto err;
631 SSL_CTX_set_alpn_select_cb(server2_ctx, server_alpn_cb,
632 server2_ctx_data);
633 }
634 if (extra->client.alpn_protocols != NULL) {
635 unsigned char *alpn_protos = NULL;
636 size_t alpn_protos_len = 0;
637
638 if (!TEST_true(parse_protos(extra->client.alpn_protocols,
639 &alpn_protos, &alpn_protos_len))
640 /* Reversed return value convention... */
641 || !TEST_int_eq(SSL_CTX_set_alpn_protos(client_ctx, alpn_protos,
642 alpn_protos_len), 0))
643 goto err;
644 OPENSSL_free(alpn_protos);
645 }
646
647 if (extra->server.session_ticket_app_data != NULL) {
648 server_ctx_data->session_ticket_app_data =
649 OPENSSL_strdup(extra->server.session_ticket_app_data);
650 if (!TEST_ptr(server_ctx_data->session_ticket_app_data))
651 goto err;
652 SSL_CTX_set_session_ticket_cb(server_ctx, generate_session_ticket_cb,
653 decrypt_session_ticket_cb, server_ctx_data);
654 }
655 if (extra->server2.session_ticket_app_data != NULL) {
656 if (!TEST_ptr(server2_ctx))
657 goto err;
658 server2_ctx_data->session_ticket_app_data =
659 OPENSSL_strdup(extra->server2.session_ticket_app_data);
660 if (!TEST_ptr(server2_ctx_data->session_ticket_app_data))
661 goto err;
662 SSL_CTX_set_session_ticket_cb(server2_ctx, NULL,
663 decrypt_session_ticket_cb, server2_ctx_data);
664 }
665
666 /*
667 * Use fixed session ticket keys so that we can decrypt a ticket created with
668 * one CTX in another CTX. Don't address server2 for the moment.
669 */
670 ticket_key_len = SSL_CTX_set_tlsext_ticket_keys(server_ctx, NULL, 0);
671 if (!TEST_ptr(ticket_keys = OPENSSL_zalloc(ticket_key_len))
672 || !TEST_int_eq(SSL_CTX_set_tlsext_ticket_keys(server_ctx,
673 ticket_keys,
674 ticket_key_len), 1)) {
675 OPENSSL_free(ticket_keys);
676 goto err;
677 }
678 OPENSSL_free(ticket_keys);
679
680 /* The default log list includes EC keys, so CT can't work without EC. */
681 #if !defined(OPENSSL_NO_CT) && !defined(OPENSSL_NO_EC)
682 if (!TEST_true(SSL_CTX_set_default_ctlog_list_file(client_ctx)))
683 goto err;
684 switch (extra->client.ct_validation) {
685 case SSL_TEST_CT_VALIDATION_PERMISSIVE:
686 if (!TEST_true(SSL_CTX_enable_ct(client_ctx,
687 SSL_CT_VALIDATION_PERMISSIVE)))
688 goto err;
689 break;
690 case SSL_TEST_CT_VALIDATION_STRICT:
691 if (!TEST_true(SSL_CTX_enable_ct(client_ctx, SSL_CT_VALIDATION_STRICT)))
692 goto err;
693 break;
694 case SSL_TEST_CT_VALIDATION_NONE:
695 break;
696 }
697 #endif
698 #ifndef OPENSSL_NO_SRP
699 if (!configure_handshake_ctx_for_srp(server_ctx, server2_ctx, client_ctx,
700 extra, server_ctx_data,
701 server2_ctx_data, client_ctx_data))
702 goto err;
703 #endif /* !OPENSSL_NO_SRP */
704 #ifndef OPENSSL_NO_COMP_ALG
705 if (test->compress_certificates) {
706 if (!TEST_true(SSL_CTX_compress_certs(server_ctx, 0)))
707 goto err;
708 if (server2_ctx != NULL && !TEST_true(SSL_CTX_compress_certs(server2_ctx, 0)))
709 goto err;
710 }
711 #endif
712 return 1;
713 err:
714 return 0;
715 }
716
717 /* Configure per-SSL callbacks and other properties. */
configure_handshake_ssl(SSL * server,SSL * client,const SSL_TEST_EXTRA_CONF * extra)718 static void configure_handshake_ssl(SSL *server, SSL *client,
719 const SSL_TEST_EXTRA_CONF *extra)
720 {
721 if (extra->client.servername != SSL_TEST_SERVERNAME_NONE)
722 SSL_set_tlsext_host_name(client,
723 ssl_servername_name(extra->client.servername));
724 if (extra->client.enable_pha)
725 SSL_set_post_handshake_auth(client, 1);
726 }
727
728 /* The status for each connection phase. */
729 typedef enum {
730 PEER_SUCCESS,
731 PEER_RETRY,
732 PEER_ERROR,
733 PEER_WAITING,
734 PEER_TEST_FAILURE
735 } peer_status_t;
736
737 /* An SSL object and associated read-write buffers. */
738 typedef struct peer_st {
739 SSL *ssl;
740 /* Buffer lengths are int to match the SSL read/write API. */
741 unsigned char *write_buf;
742 int write_buf_len;
743 unsigned char *read_buf;
744 int read_buf_len;
745 int bytes_to_write;
746 int bytes_to_read;
747 peer_status_t status;
748 } PEER;
749
create_peer(PEER * peer,SSL_CTX * ctx)750 static int create_peer(PEER *peer, SSL_CTX *ctx)
751 {
752 static const int peer_buffer_size = 64 * 1024;
753 SSL *ssl = NULL;
754 unsigned char *read_buf = NULL, *write_buf = NULL;
755
756 if (!TEST_ptr(ssl = SSL_new(ctx))
757 || !TEST_ptr(write_buf = OPENSSL_zalloc(peer_buffer_size))
758 || !TEST_ptr(read_buf = OPENSSL_zalloc(peer_buffer_size)))
759 goto err;
760
761 peer->ssl = ssl;
762 peer->write_buf = write_buf;
763 peer->read_buf = read_buf;
764 peer->write_buf_len = peer->read_buf_len = peer_buffer_size;
765 return 1;
766 err:
767 SSL_free(ssl);
768 OPENSSL_free(write_buf);
769 OPENSSL_free(read_buf);
770 return 0;
771 }
772
peer_free_data(PEER * peer)773 static void peer_free_data(PEER *peer)
774 {
775 SSL_free(peer->ssl);
776 OPENSSL_free(peer->write_buf);
777 OPENSSL_free(peer->read_buf);
778 }
779
780 /*
781 * Note that we could do the handshake transparently under an SSL_write,
782 * but separating the steps is more helpful for debugging test failures.
783 */
do_handshake_step(PEER * peer)784 static void do_handshake_step(PEER *peer)
785 {
786 if (!TEST_int_eq(peer->status, PEER_RETRY)) {
787 peer->status = PEER_TEST_FAILURE;
788 } else {
789 int ret = SSL_do_handshake(peer->ssl);
790
791 if (ret == 1) {
792 peer->status = PEER_SUCCESS;
793 } else if (ret == 0) {
794 peer->status = PEER_ERROR;
795 } else {
796 int error = SSL_get_error(peer->ssl, ret);
797
798 /* Memory bios should never block with SSL_ERROR_WANT_WRITE. */
799 if (error != SSL_ERROR_WANT_READ
800 && error != SSL_ERROR_WANT_RETRY_VERIFY)
801 peer->status = PEER_ERROR;
802 }
803 }
804 }
805
806 /*-
807 * Send/receive some application data. The read-write sequence is
808 * Peer A: (R) W - first read will yield no data
809 * Peer B: R W
810 * ...
811 * Peer A: R W
812 * Peer B: R W
813 * Peer A: R
814 */
do_app_data_step(PEER * peer)815 static void do_app_data_step(PEER *peer)
816 {
817 int ret = 1, write_bytes;
818
819 if (!TEST_int_eq(peer->status, PEER_RETRY)) {
820 peer->status = PEER_TEST_FAILURE;
821 return;
822 }
823
824 /* We read everything available... */
825 while (ret > 0 && peer->bytes_to_read) {
826 ret = SSL_read(peer->ssl, peer->read_buf, peer->read_buf_len);
827 if (ret > 0) {
828 if (!TEST_int_le(ret, peer->bytes_to_read)) {
829 peer->status = PEER_TEST_FAILURE;
830 return;
831 }
832 peer->bytes_to_read -= ret;
833 } else if (ret == 0) {
834 peer->status = PEER_ERROR;
835 return;
836 } else {
837 int error = SSL_get_error(peer->ssl, ret);
838 if (error != SSL_ERROR_WANT_READ) {
839 peer->status = PEER_ERROR;
840 return;
841 } /* Else continue with write. */
842 }
843 }
844
845 /* ... but we only write one write-buffer-full of data. */
846 write_bytes = peer->bytes_to_write < peer->write_buf_len ? peer->bytes_to_write :
847 peer->write_buf_len;
848 if (write_bytes) {
849 ret = SSL_write(peer->ssl, peer->write_buf, write_bytes);
850 if (ret > 0) {
851 /* SSL_write will only succeed with a complete write. */
852 if (!TEST_int_eq(ret, write_bytes)) {
853 peer->status = PEER_TEST_FAILURE;
854 return;
855 }
856 peer->bytes_to_write -= ret;
857 } else {
858 /*
859 * We should perhaps check for SSL_ERROR_WANT_READ/WRITE here
860 * but this doesn't yet occur with current app data sizes.
861 */
862 peer->status = PEER_ERROR;
863 return;
864 }
865 }
866
867 /*
868 * We could simply finish when there was nothing to read, and we have
869 * nothing left to write. But keeping track of the expected number of bytes
870 * to read gives us somewhat better guarantees that all data sent is in fact
871 * received.
872 */
873 if (peer->bytes_to_write == 0 && peer->bytes_to_read == 0) {
874 peer->status = PEER_SUCCESS;
875 }
876 }
877
do_reneg_setup_step(const SSL_TEST_CTX * test_ctx,PEER * peer)878 static void do_reneg_setup_step(const SSL_TEST_CTX *test_ctx, PEER *peer)
879 {
880 int ret;
881 char buf;
882
883 if (peer->status == PEER_SUCCESS) {
884 /*
885 * We are a client that succeeded this step previously, but the server
886 * wanted to retry. Probably there is a no_renegotiation warning alert
887 * waiting for us. Attempt to continue the handshake.
888 */
889 peer->status = PEER_RETRY;
890 do_handshake_step(peer);
891 return;
892 }
893
894 if (!TEST_int_eq(peer->status, PEER_RETRY)
895 || !TEST_true(test_ctx->handshake_mode
896 == SSL_TEST_HANDSHAKE_RENEG_SERVER
897 || test_ctx->handshake_mode
898 == SSL_TEST_HANDSHAKE_RENEG_CLIENT
899 || test_ctx->handshake_mode
900 == SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER
901 || test_ctx->handshake_mode
902 == SSL_TEST_HANDSHAKE_KEY_UPDATE_CLIENT
903 || test_ctx->handshake_mode
904 == SSL_TEST_HANDSHAKE_POST_HANDSHAKE_AUTH)) {
905 peer->status = PEER_TEST_FAILURE;
906 return;
907 }
908
909 /* Reset the count of the amount of app data we need to read/write */
910 peer->bytes_to_write = peer->bytes_to_read = test_ctx->app_data_size;
911
912 /* Check if we are the peer that is going to initiate */
913 if ((test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RENEG_SERVER
914 && SSL_is_server(peer->ssl))
915 || (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RENEG_CLIENT
916 && !SSL_is_server(peer->ssl))) {
917 /*
918 * If we already asked for a renegotiation then fall through to the
919 * SSL_read() below.
920 */
921 if (!SSL_renegotiate_pending(peer->ssl)) {
922 /*
923 * If we are the client we will always attempt to resume the
924 * session. The server may or may not resume dependent on the
925 * setting of SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
926 */
927 if (SSL_is_server(peer->ssl)) {
928 ret = SSL_renegotiate(peer->ssl);
929 } else {
930 int full_reneg = 0;
931
932 if (test_ctx->extra.client.no_extms_on_reneg) {
933 SSL_set_options(peer->ssl, SSL_OP_NO_EXTENDED_MASTER_SECRET);
934 full_reneg = 1;
935 }
936 if (test_ctx->extra.client.reneg_ciphers != NULL) {
937 if (!SSL_set_cipher_list(peer->ssl,
938 test_ctx->extra.client.reneg_ciphers)) {
939 peer->status = PEER_ERROR;
940 return;
941 }
942 full_reneg = 1;
943 }
944 if (full_reneg)
945 ret = SSL_renegotiate(peer->ssl);
946 else
947 ret = SSL_renegotiate_abbreviated(peer->ssl);
948 }
949 if (!ret) {
950 peer->status = PEER_ERROR;
951 return;
952 }
953 do_handshake_step(peer);
954 /*
955 * If status is PEER_RETRY it means we're waiting on the peer to
956 * continue the handshake. As far as setting up the renegotiation is
957 * concerned that is a success. The next step will continue the
958 * handshake to its conclusion.
959 *
960 * If status is PEER_SUCCESS then we are the server and we have
961 * successfully sent the HelloRequest. We need to continue to wait
962 * until the handshake arrives from the client.
963 */
964 if (peer->status == PEER_RETRY)
965 peer->status = PEER_SUCCESS;
966 else if (peer->status == PEER_SUCCESS)
967 peer->status = PEER_RETRY;
968 return;
969 }
970 } else if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER
971 || test_ctx->handshake_mode
972 == SSL_TEST_HANDSHAKE_KEY_UPDATE_CLIENT) {
973 if (SSL_is_server(peer->ssl)
974 != (test_ctx->handshake_mode
975 == SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER)) {
976 peer->status = PEER_SUCCESS;
977 return;
978 }
979
980 ret = SSL_key_update(peer->ssl, test_ctx->key_update_type);
981 if (!ret) {
982 peer->status = PEER_ERROR;
983 return;
984 }
985 do_handshake_step(peer);
986 /*
987 * This is a one step handshake. We shouldn't get anything other than
988 * PEER_SUCCESS
989 */
990 if (peer->status != PEER_SUCCESS)
991 peer->status = PEER_ERROR;
992 return;
993 } else if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_POST_HANDSHAKE_AUTH) {
994 if (SSL_is_server(peer->ssl)) {
995 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(peer->ssl);
996
997 if (sc == NULL) {
998 peer->status = PEER_ERROR;
999 return;
1000 }
1001 /* Make the server believe it's received the extension */
1002 if (test_ctx->extra.server.force_pha)
1003 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED;
1004 ret = SSL_verify_client_post_handshake(peer->ssl);
1005 if (!ret) {
1006 peer->status = PEER_ERROR;
1007 return;
1008 }
1009 }
1010 do_handshake_step(peer);
1011 /*
1012 * This is a one step handshake. We shouldn't get anything other than
1013 * PEER_SUCCESS
1014 */
1015 if (peer->status != PEER_SUCCESS)
1016 peer->status = PEER_ERROR;
1017 return;
1018 }
1019
1020 /*
1021 * The SSL object is still expecting app data, even though it's going to
1022 * get a handshake message. We try to read, and it should fail - after which
1023 * we should be in a handshake
1024 */
1025 ret = SSL_read(peer->ssl, &buf, sizeof(buf));
1026 if (ret >= 0) {
1027 /*
1028 * We're not actually expecting data - we're expecting a reneg to
1029 * start
1030 */
1031 peer->status = PEER_ERROR;
1032 return;
1033 } else {
1034 int error = SSL_get_error(peer->ssl, ret);
1035 if (error != SSL_ERROR_WANT_READ) {
1036 peer->status = PEER_ERROR;
1037 return;
1038 }
1039 /* If we're not in init yet then we're not done with setup yet */
1040 if (!SSL_in_init(peer->ssl))
1041 return;
1042 }
1043
1044 peer->status = PEER_SUCCESS;
1045 }
1046
1047
1048 /*
1049 * RFC 5246 says:
1050 *
1051 * Note that as of TLS 1.1,
1052 * failure to properly close a connection no longer requires that a
1053 * session not be resumed. This is a change from TLS 1.0 to conform
1054 * with widespread implementation practice.
1055 *
1056 * However,
1057 * (a) OpenSSL requires that a connection be shutdown for all protocol versions.
1058 * (b) We test lower versions, too.
1059 * So we just implement shutdown. We do a full bidirectional shutdown so that we
1060 * can compare sent and received close_notify alerts and get some test coverage
1061 * for SSL_shutdown as a bonus.
1062 */
do_shutdown_step(PEER * peer)1063 static void do_shutdown_step(PEER *peer)
1064 {
1065 int ret;
1066
1067 if (!TEST_int_eq(peer->status, PEER_RETRY)) {
1068 peer->status = PEER_TEST_FAILURE;
1069 return;
1070 }
1071 ret = SSL_shutdown(peer->ssl);
1072
1073 if (ret == 1) {
1074 peer->status = PEER_SUCCESS;
1075 } else if (ret < 0) { /* On 0, we retry. */
1076 int error = SSL_get_error(peer->ssl, ret);
1077
1078 if (error != SSL_ERROR_WANT_READ && error != SSL_ERROR_WANT_WRITE)
1079 peer->status = PEER_ERROR;
1080 }
1081 }
1082
1083 typedef enum {
1084 HANDSHAKE,
1085 RENEG_APPLICATION_DATA,
1086 RENEG_SETUP,
1087 RENEG_HANDSHAKE,
1088 APPLICATION_DATA,
1089 SHUTDOWN,
1090 CONNECTION_DONE
1091 } connect_phase_t;
1092
1093
renegotiate_op(const SSL_TEST_CTX * test_ctx)1094 static int renegotiate_op(const SSL_TEST_CTX *test_ctx)
1095 {
1096 switch (test_ctx->handshake_mode) {
1097 case SSL_TEST_HANDSHAKE_RENEG_SERVER:
1098 case SSL_TEST_HANDSHAKE_RENEG_CLIENT:
1099 return 1;
1100 default:
1101 return 0;
1102 }
1103 }
post_handshake_op(const SSL_TEST_CTX * test_ctx)1104 static int post_handshake_op(const SSL_TEST_CTX *test_ctx)
1105 {
1106 switch (test_ctx->handshake_mode) {
1107 case SSL_TEST_HANDSHAKE_KEY_UPDATE_CLIENT:
1108 case SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER:
1109 case SSL_TEST_HANDSHAKE_POST_HANDSHAKE_AUTH:
1110 return 1;
1111 default:
1112 return 0;
1113 }
1114 }
1115
next_phase(const SSL_TEST_CTX * test_ctx,connect_phase_t phase)1116 static connect_phase_t next_phase(const SSL_TEST_CTX *test_ctx,
1117 connect_phase_t phase)
1118 {
1119 switch (phase) {
1120 case HANDSHAKE:
1121 if (renegotiate_op(test_ctx) || post_handshake_op(test_ctx))
1122 return RENEG_APPLICATION_DATA;
1123 return APPLICATION_DATA;
1124 case RENEG_APPLICATION_DATA:
1125 return RENEG_SETUP;
1126 case RENEG_SETUP:
1127 if (post_handshake_op(test_ctx))
1128 return APPLICATION_DATA;
1129 return RENEG_HANDSHAKE;
1130 case RENEG_HANDSHAKE:
1131 return APPLICATION_DATA;
1132 case APPLICATION_DATA:
1133 return SHUTDOWN;
1134 case SHUTDOWN:
1135 return CONNECTION_DONE;
1136 case CONNECTION_DONE:
1137 TEST_error("Trying to progress after connection done");
1138 break;
1139 }
1140 return -1;
1141 }
1142
do_connect_step(const SSL_TEST_CTX * test_ctx,PEER * peer,connect_phase_t phase)1143 static void do_connect_step(const SSL_TEST_CTX *test_ctx, PEER *peer,
1144 connect_phase_t phase)
1145 {
1146 switch (phase) {
1147 case HANDSHAKE:
1148 do_handshake_step(peer);
1149 break;
1150 case RENEG_APPLICATION_DATA:
1151 do_app_data_step(peer);
1152 break;
1153 case RENEG_SETUP:
1154 do_reneg_setup_step(test_ctx, peer);
1155 break;
1156 case RENEG_HANDSHAKE:
1157 do_handshake_step(peer);
1158 break;
1159 case APPLICATION_DATA:
1160 do_app_data_step(peer);
1161 break;
1162 case SHUTDOWN:
1163 do_shutdown_step(peer);
1164 break;
1165 case CONNECTION_DONE:
1166 TEST_error("Action after connection done");
1167 break;
1168 }
1169 }
1170
1171 typedef enum {
1172 /* Both parties succeeded. */
1173 HANDSHAKE_SUCCESS,
1174 /* Client errored. */
1175 CLIENT_ERROR,
1176 /* Server errored. */
1177 SERVER_ERROR,
1178 /* Peers are in inconsistent state. */
1179 INTERNAL_ERROR,
1180 /* One or both peers not done. */
1181 HANDSHAKE_RETRY
1182 } handshake_status_t;
1183
1184 /*
1185 * Determine the handshake outcome.
1186 * last_status: the status of the peer to have acted last.
1187 * previous_status: the status of the peer that didn't act last.
1188 * client_spoke_last: 1 if the client went last.
1189 */
handshake_status(peer_status_t last_status,peer_status_t previous_status,int client_spoke_last)1190 static handshake_status_t handshake_status(peer_status_t last_status,
1191 peer_status_t previous_status,
1192 int client_spoke_last)
1193 {
1194 switch (last_status) {
1195 case PEER_TEST_FAILURE:
1196 return INTERNAL_ERROR;
1197
1198 case PEER_WAITING:
1199 /* Shouldn't ever happen */
1200 return INTERNAL_ERROR;
1201
1202 case PEER_SUCCESS:
1203 switch (previous_status) {
1204 case PEER_TEST_FAILURE:
1205 return INTERNAL_ERROR;
1206 case PEER_SUCCESS:
1207 /* Both succeeded. */
1208 return HANDSHAKE_SUCCESS;
1209 case PEER_WAITING:
1210 case PEER_RETRY:
1211 /* Let the first peer finish. */
1212 return HANDSHAKE_RETRY;
1213 case PEER_ERROR:
1214 /*
1215 * Second peer succeeded despite the fact that the first peer
1216 * already errored. This shouldn't happen.
1217 */
1218 return INTERNAL_ERROR;
1219 }
1220 break;
1221
1222 case PEER_RETRY:
1223 return HANDSHAKE_RETRY;
1224
1225 case PEER_ERROR:
1226 switch (previous_status) {
1227 case PEER_TEST_FAILURE:
1228 return INTERNAL_ERROR;
1229 case PEER_WAITING:
1230 /* The client failed immediately before sending the ClientHello */
1231 return client_spoke_last ? CLIENT_ERROR : INTERNAL_ERROR;
1232 case PEER_SUCCESS:
1233 /* First peer succeeded but second peer errored. */
1234 return client_spoke_last ? CLIENT_ERROR : SERVER_ERROR;
1235 case PEER_RETRY:
1236 /* We errored; let the peer finish. */
1237 return HANDSHAKE_RETRY;
1238 case PEER_ERROR:
1239 /* Both peers errored. Return the one that errored first. */
1240 return client_spoke_last ? SERVER_ERROR : CLIENT_ERROR;
1241 }
1242 }
1243 /* Control should never reach here. */
1244 return INTERNAL_ERROR;
1245 }
1246
1247 /* Convert unsigned char buf's that shouldn't contain any NUL-bytes to char. */
dup_str(const unsigned char * in,size_t len)1248 static char *dup_str(const unsigned char *in, size_t len)
1249 {
1250 char *ret = NULL;
1251
1252 if (len == 0)
1253 return NULL;
1254
1255 /* Assert that the string does not contain NUL-bytes. */
1256 if (TEST_size_t_eq(OPENSSL_strnlen((const char*)(in), len), len))
1257 TEST_ptr(ret = OPENSSL_strndup((const char*)(in), len));
1258 return ret;
1259 }
1260
pkey_type(EVP_PKEY * pkey)1261 static int pkey_type(EVP_PKEY *pkey)
1262 {
1263 if (EVP_PKEY_is_a(pkey, "EC")) {
1264 char name[80];
1265 size_t name_len;
1266
1267 if (!EVP_PKEY_get_group_name(pkey, name, sizeof(name), &name_len))
1268 return NID_undef;
1269 return OBJ_txt2nid(name);
1270 }
1271 return EVP_PKEY_get_id(pkey);
1272 }
1273
peer_pkey_type(SSL * s)1274 static int peer_pkey_type(SSL *s)
1275 {
1276 X509 *x = SSL_get0_peer_certificate(s);
1277
1278 if (x != NULL)
1279 return pkey_type(X509_get0_pubkey(x));
1280 return NID_undef;
1281 }
1282
1283 #if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
set_sock_as_sctp(int sock)1284 static int set_sock_as_sctp(int sock)
1285 {
1286 struct sctp_assocparams assocparams;
1287 struct sctp_rtoinfo rto_info;
1288 BIO *tmpbio;
1289
1290 /*
1291 * To allow tests to fail fast (within a second or so), reduce the
1292 * retransmission timeouts and the number of retransmissions.
1293 */
1294 memset(&rto_info, 0, sizeof(struct sctp_rtoinfo));
1295 rto_info.srto_initial = 100;
1296 rto_info.srto_max = 200;
1297 rto_info.srto_min = 50;
1298 (void)setsockopt(sock, IPPROTO_SCTP, SCTP_RTOINFO,
1299 (const void *)&rto_info, sizeof(struct sctp_rtoinfo));
1300 memset(&assocparams, 0, sizeof(struct sctp_assocparams));
1301 assocparams.sasoc_asocmaxrxt = 2;
1302 (void)setsockopt(sock, IPPROTO_SCTP, SCTP_ASSOCINFO,
1303 (const void *)&assocparams,
1304 sizeof(struct sctp_assocparams));
1305
1306 /*
1307 * For SCTP we have to set various options on the socket prior to
1308 * connecting. This is done automatically by BIO_new_dgram_sctp().
1309 * We don't actually need the created BIO though so we free it again
1310 * immediately.
1311 */
1312 tmpbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
1313
1314 if (tmpbio == NULL)
1315 return 0;
1316 BIO_free(tmpbio);
1317
1318 return 1;
1319 }
1320
create_sctp_socks(int * ssock,int * csock)1321 static int create_sctp_socks(int *ssock, int *csock)
1322 {
1323 BIO_ADDRINFO *res = NULL;
1324 const BIO_ADDRINFO *ai = NULL;
1325 int lsock = INVALID_SOCKET, asock = INVALID_SOCKET;
1326 int consock = INVALID_SOCKET;
1327 int ret = 0;
1328 int family = 0;
1329
1330 if (BIO_sock_init() != 1)
1331 return 0;
1332
1333 /*
1334 * Port is 4463. It could be anything. It will fail if it's already being
1335 * used for some other SCTP service. It seems unlikely though so we don't
1336 * worry about it here.
1337 */
1338 if (!BIO_lookup_ex(NULL, "4463", BIO_LOOKUP_SERVER, family, SOCK_STREAM,
1339 IPPROTO_SCTP, &res))
1340 return 0;
1341
1342 for (ai = res; ai != NULL; ai = BIO_ADDRINFO_next(ai)) {
1343 family = BIO_ADDRINFO_family(ai);
1344 lsock = BIO_socket(family, SOCK_STREAM, IPPROTO_SCTP, 0);
1345 if (lsock == INVALID_SOCKET) {
1346 /* Maybe the kernel doesn't support the socket family, even if
1347 * BIO_lookup() added it in the returned result...
1348 */
1349 continue;
1350 }
1351
1352 if (!set_sock_as_sctp(lsock)
1353 || !BIO_listen(lsock, BIO_ADDRINFO_address(ai),
1354 BIO_SOCK_REUSEADDR)) {
1355 BIO_closesocket(lsock);
1356 lsock = INVALID_SOCKET;
1357 continue;
1358 }
1359
1360 /* Success, don't try any more addresses */
1361 break;
1362 }
1363
1364 if (lsock == INVALID_SOCKET)
1365 goto err;
1366
1367 BIO_ADDRINFO_free(res);
1368 res = NULL;
1369
1370 if (!BIO_lookup_ex(NULL, "4463", BIO_LOOKUP_CLIENT, family, SOCK_STREAM,
1371 IPPROTO_SCTP, &res))
1372 goto err;
1373
1374 consock = BIO_socket(family, SOCK_STREAM, IPPROTO_SCTP, 0);
1375 if (consock == INVALID_SOCKET)
1376 goto err;
1377
1378 if (!set_sock_as_sctp(consock)
1379 || !BIO_connect(consock, BIO_ADDRINFO_address(res), 0)
1380 || !BIO_socket_nbio(consock, 1))
1381 goto err;
1382
1383 asock = BIO_accept_ex(lsock, NULL, BIO_SOCK_NONBLOCK);
1384 if (asock == INVALID_SOCKET)
1385 goto err;
1386
1387 *csock = consock;
1388 *ssock = asock;
1389 consock = asock = INVALID_SOCKET;
1390 ret = 1;
1391
1392 err:
1393 BIO_ADDRINFO_free(res);
1394 if (consock != INVALID_SOCKET)
1395 BIO_closesocket(consock);
1396 if (lsock != INVALID_SOCKET)
1397 BIO_closesocket(lsock);
1398 if (asock != INVALID_SOCKET)
1399 BIO_closesocket(asock);
1400 return ret;
1401 }
1402 #endif
1403
1404 /*
1405 * Note that |extra| points to the correct client/server configuration
1406 * within |test_ctx|. When configuring the handshake, general mode settings
1407 * are taken from |test_ctx|, and client/server-specific settings should be
1408 * taken from |extra|.
1409 *
1410 * The configuration code should never reach into |test_ctx->extra| or
1411 * |test_ctx->resume_extra| directly.
1412 *
1413 * (We could refactor test mode settings into a substructure. This would result
1414 * in cleaner argument passing but would complicate the test configuration
1415 * parsing.)
1416 */
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)1417 static HANDSHAKE_RESULT *do_handshake_internal(
1418 SSL_CTX *server_ctx, SSL_CTX *server2_ctx, SSL_CTX *client_ctx,
1419 const SSL_TEST_CTX *test_ctx, const SSL_TEST_EXTRA_CONF *extra,
1420 SSL_SESSION *session_in, SSL_SESSION *serv_sess_in,
1421 SSL_SESSION **session_out, SSL_SESSION **serv_sess_out)
1422 {
1423 PEER server, client;
1424 BIO *client_to_server = NULL, *server_to_client = NULL;
1425 HANDSHAKE_EX_DATA server_ex_data, client_ex_data;
1426 CTX_DATA client_ctx_data, server_ctx_data, server2_ctx_data;
1427 HANDSHAKE_RESULT *ret = HANDSHAKE_RESULT_new();
1428 int client_turn = 1, client_turn_count = 0, client_wait_count = 0;
1429 connect_phase_t phase = HANDSHAKE;
1430 handshake_status_t status = HANDSHAKE_RETRY;
1431 const unsigned char* tick = NULL;
1432 size_t tick_len = 0;
1433 const unsigned char* sess_id = NULL;
1434 unsigned int sess_id_len = 0;
1435 SSL_SESSION* sess = NULL;
1436 const unsigned char *proto = NULL;
1437 /* API dictates unsigned int rather than size_t. */
1438 unsigned int proto_len = 0;
1439 EVP_PKEY *tmp_key;
1440 const STACK_OF(X509_NAME) *names;
1441 time_t start;
1442 const char* cipher;
1443
1444 if (ret == NULL)
1445 return NULL;
1446
1447 memset(&server_ctx_data, 0, sizeof(server_ctx_data));
1448 memset(&server2_ctx_data, 0, sizeof(server2_ctx_data));
1449 memset(&client_ctx_data, 0, sizeof(client_ctx_data));
1450 memset(&server, 0, sizeof(server));
1451 memset(&client, 0, sizeof(client));
1452 memset(&server_ex_data, 0, sizeof(server_ex_data));
1453 memset(&client_ex_data, 0, sizeof(client_ex_data));
1454
1455 if (!configure_handshake_ctx(server_ctx, server2_ctx, client_ctx,
1456 test_ctx, extra, &server_ctx_data,
1457 &server2_ctx_data, &client_ctx_data)) {
1458 TEST_note("configure_handshake_ctx");
1459 HANDSHAKE_RESULT_free(ret);
1460 return NULL;
1461 }
1462
1463 #if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
1464 if (test_ctx->enable_client_sctp_label_bug)
1465 SSL_CTX_set_mode(client_ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1466 if (test_ctx->enable_server_sctp_label_bug)
1467 SSL_CTX_set_mode(server_ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1468 #endif
1469
1470 /* Setup SSL and buffers; additional configuration happens below. */
1471 if (!create_peer(&server, server_ctx)) {
1472 TEST_note("creating server context");
1473 goto err;
1474 }
1475 if (!create_peer(&client, client_ctx)) {
1476 TEST_note("creating client context");
1477 goto err;
1478 }
1479
1480 server.bytes_to_write = client.bytes_to_read = test_ctx->app_data_size;
1481 client.bytes_to_write = server.bytes_to_read = test_ctx->app_data_size;
1482
1483 configure_handshake_ssl(server.ssl, client.ssl, extra);
1484 if (session_in != NULL) {
1485 SSL_SESSION_get_id(serv_sess_in, &sess_id_len);
1486 /* In case we're testing resumption without tickets. */
1487 if ((sess_id_len > 0
1488 && !TEST_true(SSL_CTX_add_session(server_ctx,
1489 serv_sess_in)))
1490 || !TEST_true(SSL_set_session(client.ssl, session_in)))
1491 goto err;
1492 sess_id_len = 0;
1493 }
1494
1495 ret->result = SSL_TEST_INTERNAL_ERROR;
1496
1497 if (test_ctx->use_sctp) {
1498 #if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
1499 int csock, ssock;
1500
1501 if (create_sctp_socks(&ssock, &csock)) {
1502 client_to_server = BIO_new_dgram_sctp(csock, BIO_CLOSE);
1503 server_to_client = BIO_new_dgram_sctp(ssock, BIO_CLOSE);
1504 }
1505 #endif
1506 } else {
1507 client_to_server = BIO_new(BIO_s_mem());
1508 server_to_client = BIO_new(BIO_s_mem());
1509 }
1510
1511 if (!TEST_ptr(client_to_server)
1512 || !TEST_ptr(server_to_client))
1513 goto err;
1514
1515 /* Non-blocking bio. */
1516 BIO_set_nbio(client_to_server, 1);
1517 BIO_set_nbio(server_to_client, 1);
1518
1519 SSL_set_connect_state(client.ssl);
1520 SSL_set_accept_state(server.ssl);
1521
1522 /* The bios are now owned by the SSL object. */
1523 if (test_ctx->use_sctp) {
1524 SSL_set_bio(client.ssl, client_to_server, client_to_server);
1525 SSL_set_bio(server.ssl, server_to_client, server_to_client);
1526 } else {
1527 SSL_set_bio(client.ssl, server_to_client, client_to_server);
1528 if (!TEST_int_gt(BIO_up_ref(server_to_client), 0)
1529 || !TEST_int_gt(BIO_up_ref(client_to_server), 0))
1530 goto err;
1531 SSL_set_bio(server.ssl, client_to_server, server_to_client);
1532 }
1533
1534 ex_data_idx = SSL_get_ex_new_index(0, "ex data", NULL, NULL, NULL);
1535 if (!TEST_int_ge(ex_data_idx, 0)
1536 || !TEST_int_eq(SSL_set_ex_data(server.ssl, ex_data_idx, &server_ex_data), 1)
1537 || !TEST_int_eq(SSL_set_ex_data(client.ssl, ex_data_idx, &client_ex_data), 1))
1538 goto err;
1539
1540 SSL_set_info_callback(server.ssl, &info_cb);
1541 SSL_set_info_callback(client.ssl, &info_cb);
1542
1543 client.status = PEER_RETRY;
1544 server.status = PEER_WAITING;
1545
1546 start = time(NULL);
1547
1548 /*
1549 * Half-duplex handshake loop.
1550 * Client and server speak to each other synchronously in the same process.
1551 * We use non-blocking BIOs, so whenever one peer blocks for read, it
1552 * returns PEER_RETRY to indicate that it's the other peer's turn to write.
1553 * The handshake succeeds once both peers have succeeded. If one peer
1554 * errors out, we also let the other peer retry (and presumably fail).
1555 */
1556 for (;;) {
1557 if (client_turn) {
1558 do_connect_step(test_ctx, &client, phase);
1559 status = handshake_status(client.status, server.status,
1560 1 /* client went last */);
1561 if (server.status == PEER_WAITING)
1562 server.status = PEER_RETRY;
1563 } else {
1564 do_connect_step(test_ctx, &server, phase);
1565 status = handshake_status(server.status, client.status,
1566 0 /* server went last */);
1567 }
1568
1569 switch (status) {
1570 case HANDSHAKE_SUCCESS:
1571 client_turn_count = 0;
1572 phase = next_phase(test_ctx, phase);
1573 if (phase == CONNECTION_DONE) {
1574 ret->result = SSL_TEST_SUCCESS;
1575 goto err;
1576 } else {
1577 client.status = server.status = PEER_RETRY;
1578 /*
1579 * For now, client starts each phase. Since each phase is
1580 * started separately, we can later control this more
1581 * precisely, for example, to test client-initiated and
1582 * server-initiated shutdown.
1583 */
1584 client_turn = 1;
1585 break;
1586 }
1587 case CLIENT_ERROR:
1588 ret->result = SSL_TEST_CLIENT_FAIL;
1589 goto err;
1590 case SERVER_ERROR:
1591 ret->result = SSL_TEST_SERVER_FAIL;
1592 goto err;
1593 case INTERNAL_ERROR:
1594 ret->result = SSL_TEST_INTERNAL_ERROR;
1595 goto err;
1596 case HANDSHAKE_RETRY:
1597 if (test_ctx->use_sctp) {
1598 if (time(NULL) - start > 3) {
1599 /*
1600 * We've waited for too long. Give up.
1601 */
1602 ret->result = SSL_TEST_INTERNAL_ERROR;
1603 goto err;
1604 }
1605 /*
1606 * With "real" sockets we only swap to processing the peer
1607 * if they are expecting to retry. Otherwise we just retry the
1608 * same endpoint again.
1609 */
1610 if ((client_turn && server.status == PEER_RETRY)
1611 || (!client_turn && client.status == PEER_RETRY))
1612 client_turn ^= 1;
1613 } else {
1614 if (client_turn_count++ >= 2000) {
1615 /*
1616 * At this point, there's been so many PEER_RETRY in a row
1617 * that it's likely both sides are stuck waiting for a read.
1618 * It's time to give up.
1619 */
1620 ret->result = SSL_TEST_INTERNAL_ERROR;
1621 goto err;
1622 }
1623 if (client_turn && server.status == PEER_SUCCESS) {
1624 /*
1625 * The server may finish before the client because the
1626 * client spends some turns processing NewSessionTickets.
1627 */
1628 if (client_wait_count++ >= 2) {
1629 ret->result = SSL_TEST_INTERNAL_ERROR;
1630 goto err;
1631 }
1632 } else {
1633 /* Continue. */
1634 client_turn ^= 1;
1635 }
1636 }
1637 break;
1638 }
1639 }
1640 err:
1641 ret->server_alert_sent = server_ex_data.alert_sent;
1642 ret->server_num_fatal_alerts_sent = server_ex_data.num_fatal_alerts_sent;
1643 ret->server_alert_received = client_ex_data.alert_received;
1644 ret->client_alert_sent = client_ex_data.alert_sent;
1645 ret->client_num_fatal_alerts_sent = client_ex_data.num_fatal_alerts_sent;
1646 ret->client_alert_received = server_ex_data.alert_received;
1647 ret->server_protocol = SSL_version(server.ssl);
1648 ret->client_protocol = SSL_version(client.ssl);
1649 ret->servername = server_ex_data.servername;
1650 if ((sess = SSL_get0_session(client.ssl)) != NULL) {
1651 SSL_SESSION_get0_ticket(sess, &tick, &tick_len);
1652 sess_id = SSL_SESSION_get_id(sess, &sess_id_len);
1653 }
1654 if (tick == NULL || tick_len == 0)
1655 ret->session_ticket = SSL_TEST_SESSION_TICKET_NO;
1656 else
1657 ret->session_ticket = SSL_TEST_SESSION_TICKET_YES;
1658 ret->compression = (SSL_get_current_compression(client.ssl) == NULL)
1659 ? SSL_TEST_COMPRESSION_NO
1660 : SSL_TEST_COMPRESSION_YES;
1661 if (sess_id == NULL || sess_id_len == 0)
1662 ret->session_id = SSL_TEST_SESSION_ID_NO;
1663 else
1664 ret->session_id = SSL_TEST_SESSION_ID_YES;
1665 ret->session_ticket_do_not_call = server_ex_data.session_ticket_do_not_call;
1666
1667 if (extra->client.verify_callback == SSL_TEST_VERIFY_RETRY_ONCE
1668 && n_retries != -1)
1669 ret->result = SSL_TEST_SERVER_FAIL;
1670
1671 #ifndef OPENSSL_NO_NEXTPROTONEG
1672 SSL_get0_next_proto_negotiated(client.ssl, &proto, &proto_len);
1673 ret->client_npn_negotiated = dup_str(proto, proto_len);
1674
1675 SSL_get0_next_proto_negotiated(server.ssl, &proto, &proto_len);
1676 ret->server_npn_negotiated = dup_str(proto, proto_len);
1677 #endif
1678
1679 SSL_get0_alpn_selected(client.ssl, &proto, &proto_len);
1680 ret->client_alpn_negotiated = dup_str(proto, proto_len);
1681
1682 SSL_get0_alpn_selected(server.ssl, &proto, &proto_len);
1683 ret->server_alpn_negotiated = dup_str(proto, proto_len);
1684
1685 if ((sess = SSL_get0_session(server.ssl)) != NULL) {
1686 SSL_SESSION_get0_ticket_appdata(sess, (void**)&tick, &tick_len);
1687 ret->result_session_ticket_app_data = OPENSSL_strndup((const char*)tick, tick_len);
1688 }
1689
1690 ret->client_resumed = SSL_session_reused(client.ssl);
1691 ret->server_resumed = SSL_session_reused(server.ssl);
1692
1693 cipher = SSL_CIPHER_get_name(SSL_get_current_cipher(client.ssl));
1694 ret->cipher = dup_str((const unsigned char*)cipher, strlen(cipher));
1695
1696 if (session_out != NULL)
1697 *session_out = SSL_get1_session(client.ssl);
1698 if (serv_sess_out != NULL) {
1699 SSL_SESSION *tmp = SSL_get_session(server.ssl);
1700
1701 /*
1702 * We create a fresh copy that is not in the server session ctx linked
1703 * list.
1704 */
1705 if (tmp != NULL)
1706 *serv_sess_out = SSL_SESSION_dup(tmp);
1707 }
1708
1709 if (SSL_get_peer_tmp_key(client.ssl, &tmp_key)) {
1710 ret->tmp_key_type = pkey_type(tmp_key);
1711 EVP_PKEY_free(tmp_key);
1712 }
1713
1714 SSL_get_peer_signature_nid(client.ssl, &ret->server_sign_hash);
1715 SSL_get_peer_signature_nid(server.ssl, &ret->client_sign_hash);
1716
1717 SSL_get_peer_signature_type_nid(client.ssl, &ret->server_sign_type);
1718 SSL_get_peer_signature_type_nid(server.ssl, &ret->client_sign_type);
1719
1720 names = SSL_get0_peer_CA_list(client.ssl);
1721 if (names == NULL)
1722 ret->client_ca_names = NULL;
1723 else
1724 ret->client_ca_names = SSL_dup_CA_list(names);
1725
1726 names = SSL_get0_peer_CA_list(server.ssl);
1727 if (names == NULL)
1728 ret->server_ca_names = NULL;
1729 else
1730 ret->server_ca_names = SSL_dup_CA_list(names);
1731
1732 ret->server_cert_type = peer_pkey_type(client.ssl);
1733 ret->client_cert_type = peer_pkey_type(server.ssl);
1734
1735 ctx_data_free_data(&server_ctx_data);
1736 ctx_data_free_data(&server2_ctx_data);
1737 ctx_data_free_data(&client_ctx_data);
1738
1739 peer_free_data(&server);
1740 peer_free_data(&client);
1741 return ret;
1742 }
1743
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)1744 HANDSHAKE_RESULT *do_handshake(SSL_CTX *server_ctx, SSL_CTX *server2_ctx,
1745 SSL_CTX *client_ctx, SSL_CTX *resume_server_ctx,
1746 SSL_CTX *resume_client_ctx,
1747 const SSL_TEST_CTX *test_ctx)
1748 {
1749 HANDSHAKE_RESULT *result;
1750 SSL_SESSION *session = NULL, *serv_sess = NULL;
1751
1752 result = do_handshake_internal(server_ctx, server2_ctx, client_ctx,
1753 test_ctx, &test_ctx->extra,
1754 NULL, NULL, &session, &serv_sess);
1755 if (result == NULL
1756 || test_ctx->handshake_mode != SSL_TEST_HANDSHAKE_RESUME
1757 || result->result == SSL_TEST_INTERNAL_ERROR)
1758 goto end;
1759
1760 if (result->result != SSL_TEST_SUCCESS) {
1761 result->result = SSL_TEST_FIRST_HANDSHAKE_FAILED;
1762 goto end;
1763 }
1764
1765 HANDSHAKE_RESULT_free(result);
1766 /* We don't support SNI on second handshake yet, so server2_ctx is NULL. */
1767 result = do_handshake_internal(resume_server_ctx, NULL, resume_client_ctx,
1768 test_ctx, &test_ctx->resume_extra,
1769 session, serv_sess, NULL, NULL);
1770 end:
1771 SSL_SESSION_free(session);
1772 SSL_SESSION_free(serv_sess);
1773 return result;
1774 }
1775
