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source: vbox/trunk/src/libs/openssl-3.0.2/test/helpers/handshake.c@ 94403

最後變更 在這個檔案從94403是 94320,由 vboxsync 提交於 3 年 前

libs/openssl-3.0.1: Export to OSE and fix copyright headers in Makefiles, bugref:10128
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1/*
2 * Copyright 2016-2021 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
27HANDSHAKE_RESULT *HANDSHAKE_RESULT_new(void)
28{
29 HANDSHAKE_RESULT *ret;
30
31 TEST_ptr(ret = OPENSSL_zalloc(sizeof(*ret)));
32 return ret;
33}
34
35void 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 */
55typedef 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. */
64static 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
78static int ex_data_idx;
79
80static 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 */
102static 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
138static 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") && strncmp(servername, "server2", len) == 0) {
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 strncmp(servername, "server1", len) == 0) {
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 */
211static int servername_ignore_cb(SSL *s, int *ad, void *arg)
212{
213 return select_server_ctx(s, arg, 1);
214}
215
216static int servername_reject_cb(SSL *s, int *ad, void *arg)
217{
218 return select_server_ctx(s, arg, 0);
219}
220
221static 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
230static 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
239static 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
267static unsigned char dummy_ocsp_resp_good_val = 0xff;
268static unsigned char dummy_ocsp_resp_bad_val = 0xfe;
269
270static 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
289static 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
301static 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
306static int n_retries = 0;
307static int verify_retry_cb(X509_STORE_CTX *ctx, void *arg) {
308 if (--n_retries < 0)
309 return 1;
310 X509_STORE_CTX_set_error(ctx, X509_V_ERR_APPLICATION_VERIFICATION);
311 return -1;
312}
313
314static int verify_accept_cb(X509_STORE_CTX *ctx, void *arg) {
315 return 1;
316}
317
318static int broken_session_ticket_cb(SSL *s, unsigned char *key_name,
319 unsigned char *iv, EVP_CIPHER_CTX *ctx,
320 EVP_MAC_CTX *hctx, int enc)
321{
322 return 0;
323}
324
325static int do_not_call_session_ticket_cb(SSL *s, unsigned char *key_name,
326 unsigned char *iv,
327 EVP_CIPHER_CTX *ctx,
328 EVP_MAC_CTX *hctx, int enc)
329{
330 HANDSHAKE_EX_DATA *ex_data =
331 (HANDSHAKE_EX_DATA*)(SSL_get_ex_data(s, ex_data_idx));
332 ex_data->session_ticket_do_not_call = 1;
333 return 0;
334}
335
336/* Parse the comma-separated list into TLS format. */
337static int parse_protos(const char *protos, unsigned char **out, size_t *outlen)
338{
339 size_t len, i, prefix;
340
341 len = strlen(protos);
342
343 /* Should never have reuse. */
344 if (!TEST_ptr_null(*out)
345 /* Test values are small, so we omit length limit checks. */
346 || !TEST_ptr(*out = OPENSSL_malloc(len + 1)))
347 return 0;
348 *outlen = len + 1;
349
350 /*
351 * foo => '3', 'f', 'o', 'o'
352 * foo,bar => '3', 'f', 'o', 'o', '3', 'b', 'a', 'r'
353 */
354 memcpy(*out + 1, protos, len);
355
356 prefix = 0;
357 i = prefix + 1;
358 while (i <= len) {
359 if ((*out)[i] == ',') {
360 if (!TEST_int_gt(i - 1, prefix))
361 goto err;
362 (*out)[prefix] = (unsigned char)(i - 1 - prefix);
363 prefix = i;
364 }
365 i++;
366 }
367 if (!TEST_int_gt(len, prefix))
368 goto err;
369 (*out)[prefix] = (unsigned char)(len - prefix);
370 return 1;
371
372err:
373 OPENSSL_free(*out);
374 *out = NULL;
375 return 0;
376}
377
378#ifndef OPENSSL_NO_NEXTPROTONEG
379/*
380 * The client SHOULD select the first protocol advertised by the server that it
381 * also supports. In the event that the client doesn't support any of server's
382 * protocols, or the server doesn't advertise any, it SHOULD select the first
383 * protocol that it supports.
384 */
385static int client_npn_cb(SSL *s, unsigned char **out, unsigned char *outlen,
386 const unsigned char *in, unsigned int inlen,
387 void *arg)
388{
389 CTX_DATA *ctx_data = (CTX_DATA*)(arg);
390 int ret;
391
392 ret = SSL_select_next_proto(out, outlen, in, inlen,
393 ctx_data->npn_protocols,
394 ctx_data->npn_protocols_len);
395 /* Accept both OPENSSL_NPN_NEGOTIATED and OPENSSL_NPN_NO_OVERLAP. */
396 return TEST_true(ret == OPENSSL_NPN_NEGOTIATED || ret == OPENSSL_NPN_NO_OVERLAP)
397 ? SSL_TLSEXT_ERR_OK : SSL_TLSEXT_ERR_ALERT_FATAL;
398}
399
400static int server_npn_cb(SSL *s, const unsigned char **data,
401 unsigned int *len, void *arg)
402{
403 CTX_DATA *ctx_data = (CTX_DATA*)(arg);
404 *data = ctx_data->npn_protocols;
405 *len = ctx_data->npn_protocols_len;
406 return SSL_TLSEXT_ERR_OK;
407}
408#endif
409
410/*
411 * The server SHOULD select the most highly preferred protocol that it supports
412 * and that is also advertised by the client. In the event that the server
413 * supports no protocols that the client advertises, then the server SHALL
414 * respond with a fatal "no_application_protocol" alert.
415 */
416static int server_alpn_cb(SSL *s, const unsigned char **out,
417 unsigned char *outlen, const unsigned char *in,
418 unsigned int inlen, void *arg)
419{
420 CTX_DATA *ctx_data = (CTX_DATA*)(arg);
421 int ret;
422
423 /* SSL_select_next_proto isn't const-correct... */
424 unsigned char *tmp_out;
425
426 /*
427 * The result points either to |in| or to |ctx_data->alpn_protocols|.
428 * The callback is allowed to point to |in| or to a long-lived buffer,
429 * so we can return directly without storing a copy.
430 */
431 ret = SSL_select_next_proto(&tmp_out, outlen,
432 ctx_data->alpn_protocols,
433 ctx_data->alpn_protocols_len, in, inlen);
434
435 *out = tmp_out;
436 /* Unlike NPN, we don't tolerate a mismatch. */
437 return ret == OPENSSL_NPN_NEGOTIATED ? SSL_TLSEXT_ERR_OK
438 : SSL_TLSEXT_ERR_ALERT_FATAL;
439}
440
441static int generate_session_ticket_cb(SSL *s, void *arg)
442{
443 CTX_DATA *server_ctx_data = arg;
444 SSL_SESSION *ss = SSL_get_session(s);
445 char *app_data = server_ctx_data->session_ticket_app_data;
446
447 if (ss == NULL || app_data == NULL)
448 return 0;
449
450 return SSL_SESSION_set1_ticket_appdata(ss, app_data, strlen(app_data));
451}
452
453static int decrypt_session_ticket_cb(SSL *s, SSL_SESSION *ss,
454 const unsigned char *keyname,
455 size_t keyname_len,
456 SSL_TICKET_STATUS status,
457 void *arg)
458{
459 switch (status) {
460 case SSL_TICKET_EMPTY:
461 case SSL_TICKET_NO_DECRYPT:
462 return SSL_TICKET_RETURN_IGNORE_RENEW;
463 case SSL_TICKET_SUCCESS:
464 return SSL_TICKET_RETURN_USE;
465 case SSL_TICKET_SUCCESS_RENEW:
466 return SSL_TICKET_RETURN_USE_RENEW;
467 default:
468 break;
469 }
470 return SSL_TICKET_RETURN_ABORT;
471}
472
473/*
474 * Configure callbacks and other properties that can't be set directly
475 * in the server/client CONF.
476 */
477static int configure_handshake_ctx(SSL_CTX *server_ctx, SSL_CTX *server2_ctx,
478 SSL_CTX *client_ctx,
479 const SSL_TEST_CTX *test,
480 const SSL_TEST_EXTRA_CONF *extra,
481 CTX_DATA *server_ctx_data,
482 CTX_DATA *server2_ctx_data,
483 CTX_DATA *client_ctx_data)
484{
485 unsigned char *ticket_keys;
486 size_t ticket_key_len;
487
488 if (!TEST_int_eq(SSL_CTX_set_max_send_fragment(server_ctx,
489 test->max_fragment_size), 1))
490 goto err;
491 if (server2_ctx != NULL) {
492 if (!TEST_int_eq(SSL_CTX_set_max_send_fragment(server2_ctx,
493 test->max_fragment_size),
494 1))
495 goto err;
496 }
497 if (!TEST_int_eq(SSL_CTX_set_max_send_fragment(client_ctx,
498 test->max_fragment_size), 1))
499 goto err;
500
501 switch (extra->client.verify_callback) {
502 case SSL_TEST_VERIFY_ACCEPT_ALL:
503 SSL_CTX_set_cert_verify_callback(client_ctx, &verify_accept_cb, NULL);
504 break;
505 case SSL_TEST_VERIFY_RETRY_ONCE:
506 n_retries = 1;
507 SSL_CTX_set_cert_verify_callback(client_ctx, &verify_retry_cb, NULL);
508 break;
509 case SSL_TEST_VERIFY_REJECT_ALL:
510 SSL_CTX_set_cert_verify_callback(client_ctx, &verify_reject_cb, NULL);
511 break;
512 case SSL_TEST_VERIFY_NONE:
513 break;
514 }
515
516 switch (extra->client.max_fragment_len_mode) {
517 case TLSEXT_max_fragment_length_512:
518 case TLSEXT_max_fragment_length_1024:
519 case TLSEXT_max_fragment_length_2048:
520 case TLSEXT_max_fragment_length_4096:
521 case TLSEXT_max_fragment_length_DISABLED:
522 SSL_CTX_set_tlsext_max_fragment_length(
523 client_ctx, extra->client.max_fragment_len_mode);
524 break;
525 }
526
527 /*
528 * Link the two contexts for SNI purposes.
529 * Also do ClientHello callbacks here, as setting both ClientHello and SNI
530 * is bad.
531 */
532 switch (extra->server.servername_callback) {
533 case SSL_TEST_SERVERNAME_IGNORE_MISMATCH:
534 SSL_CTX_set_tlsext_servername_callback(server_ctx, servername_ignore_cb);
535 SSL_CTX_set_tlsext_servername_arg(server_ctx, server2_ctx);
536 break;
537 case SSL_TEST_SERVERNAME_REJECT_MISMATCH:
538 SSL_CTX_set_tlsext_servername_callback(server_ctx, servername_reject_cb);
539 SSL_CTX_set_tlsext_servername_arg(server_ctx, server2_ctx);
540 break;
541 case SSL_TEST_SERVERNAME_CB_NONE:
542 break;
543 case SSL_TEST_SERVERNAME_CLIENT_HELLO_IGNORE_MISMATCH:
544 SSL_CTX_set_client_hello_cb(server_ctx, client_hello_ignore_cb, server2_ctx);
545 break;
546 case SSL_TEST_SERVERNAME_CLIENT_HELLO_REJECT_MISMATCH:
547 SSL_CTX_set_client_hello_cb(server_ctx, client_hello_reject_cb, server2_ctx);
548 break;
549 case SSL_TEST_SERVERNAME_CLIENT_HELLO_NO_V12:
550 SSL_CTX_set_client_hello_cb(server_ctx, client_hello_nov12_cb, server2_ctx);
551 }
552
553 if (extra->server.cert_status != SSL_TEST_CERT_STATUS_NONE) {
554 SSL_CTX_set_tlsext_status_type(client_ctx, TLSEXT_STATUSTYPE_ocsp);
555 SSL_CTX_set_tlsext_status_cb(client_ctx, client_ocsp_cb);
556 SSL_CTX_set_tlsext_status_arg(client_ctx, NULL);
557 SSL_CTX_set_tlsext_status_cb(server_ctx, server_ocsp_cb);
558 SSL_CTX_set_tlsext_status_arg(server_ctx,
559 ((extra->server.cert_status == SSL_TEST_CERT_STATUS_GOOD_RESPONSE)
560 ? &dummy_ocsp_resp_good_val : &dummy_ocsp_resp_bad_val));
561 }
562
563 /*
564 * The initial_ctx/session_ctx always handles the encrypt/decrypt of the
565 * session ticket. This ticket_key callback is assigned to the second
566 * session (assigned via SNI), and should never be invoked
567 */
568 if (server2_ctx != NULL)
569 SSL_CTX_set_tlsext_ticket_key_evp_cb(server2_ctx,
570 do_not_call_session_ticket_cb);
571
572 if (extra->server.broken_session_ticket) {
573 SSL_CTX_set_tlsext_ticket_key_evp_cb(server_ctx,
574 broken_session_ticket_cb);
575 }
576#ifndef OPENSSL_NO_NEXTPROTONEG
577 if (extra->server.npn_protocols != NULL) {
578 if (!TEST_true(parse_protos(extra->server.npn_protocols,
579 &server_ctx_data->npn_protocols,
580 &server_ctx_data->npn_protocols_len)))
581 goto err;
582 SSL_CTX_set_npn_advertised_cb(server_ctx, server_npn_cb,
583 server_ctx_data);
584 }
585 if (extra->server2.npn_protocols != NULL) {
586 if (!TEST_true(parse_protos(extra->server2.npn_protocols,
587 &server2_ctx_data->npn_protocols,
588 &server2_ctx_data->npn_protocols_len))
589 || !TEST_ptr(server2_ctx))
590 goto err;
591 SSL_CTX_set_npn_advertised_cb(server2_ctx, server_npn_cb,
592 server2_ctx_data);
593 }
594 if (extra->client.npn_protocols != NULL) {
595 if (!TEST_true(parse_protos(extra->client.npn_protocols,
596 &client_ctx_data->npn_protocols,
597 &client_ctx_data->npn_protocols_len)))
598 goto err;
599 SSL_CTX_set_next_proto_select_cb(client_ctx, client_npn_cb,
600 client_ctx_data);
601 }
602#endif
603 if (extra->server.alpn_protocols != NULL) {
604 if (!TEST_true(parse_protos(extra->server.alpn_protocols,
605 &server_ctx_data->alpn_protocols,
606 &server_ctx_data->alpn_protocols_len)))
607 goto err;
608 SSL_CTX_set_alpn_select_cb(server_ctx, server_alpn_cb, server_ctx_data);
609 }
610 if (extra->server2.alpn_protocols != NULL) {
611 if (!TEST_ptr(server2_ctx)
612 || !TEST_true(parse_protos(extra->server2.alpn_protocols,
613 &server2_ctx_data->alpn_protocols,
614 &server2_ctx_data->alpn_protocols_len
615 )))
616 goto err;
617 SSL_CTX_set_alpn_select_cb(server2_ctx, server_alpn_cb,
618 server2_ctx_data);
619 }
620 if (extra->client.alpn_protocols != NULL) {
621 unsigned char *alpn_protos = NULL;
622 size_t alpn_protos_len = 0;
623
624 if (!TEST_true(parse_protos(extra->client.alpn_protocols,
625 &alpn_protos, &alpn_protos_len))
626 /* Reversed return value convention... */
627 || !TEST_int_eq(SSL_CTX_set_alpn_protos(client_ctx, alpn_protos,
628 alpn_protos_len), 0))
629 goto err;
630 OPENSSL_free(alpn_protos);
631 }
632
633 if (extra->server.session_ticket_app_data != NULL) {
634 server_ctx_data->session_ticket_app_data =
635 OPENSSL_strdup(extra->server.session_ticket_app_data);
636 SSL_CTX_set_session_ticket_cb(server_ctx, generate_session_ticket_cb,
637 decrypt_session_ticket_cb, server_ctx_data);
638 }
639 if (extra->server2.session_ticket_app_data != NULL) {
640 if (!TEST_ptr(server2_ctx))
641 goto err;
642 server2_ctx_data->session_ticket_app_data =
643 OPENSSL_strdup(extra->server2.session_ticket_app_data);
644 SSL_CTX_set_session_ticket_cb(server2_ctx, NULL,
645 decrypt_session_ticket_cb, server2_ctx_data);
646 }
647
648 /*
649 * Use fixed session ticket keys so that we can decrypt a ticket created with
650 * one CTX in another CTX. Don't address server2 for the moment.
651 */
652 ticket_key_len = SSL_CTX_set_tlsext_ticket_keys(server_ctx, NULL, 0);
653 if (!TEST_ptr(ticket_keys = OPENSSL_zalloc(ticket_key_len))
654 || !TEST_int_eq(SSL_CTX_set_tlsext_ticket_keys(server_ctx,
655 ticket_keys,
656 ticket_key_len), 1)) {
657 OPENSSL_free(ticket_keys);
658 goto err;
659 }
660 OPENSSL_free(ticket_keys);
661
662 /* The default log list includes EC keys, so CT can't work without EC. */
663#if !defined(OPENSSL_NO_CT) && !defined(OPENSSL_NO_EC)
664 if (!TEST_true(SSL_CTX_set_default_ctlog_list_file(client_ctx)))
665 goto err;
666 switch (extra->client.ct_validation) {
667 case SSL_TEST_CT_VALIDATION_PERMISSIVE:
668 if (!TEST_true(SSL_CTX_enable_ct(client_ctx,
669 SSL_CT_VALIDATION_PERMISSIVE)))
670 goto err;
671 break;
672 case SSL_TEST_CT_VALIDATION_STRICT:
673 if (!TEST_true(SSL_CTX_enable_ct(client_ctx, SSL_CT_VALIDATION_STRICT)))
674 goto err;
675 break;
676 case SSL_TEST_CT_VALIDATION_NONE:
677 break;
678 }
679#endif
680#ifndef OPENSSL_NO_SRP
681 if (!configure_handshake_ctx_for_srp(server_ctx, server2_ctx, client_ctx,
682 extra, server_ctx_data,
683 server2_ctx_data, client_ctx_data))
684 goto err;
685#endif /* !OPENSSL_NO_SRP */
686 return 1;
687err:
688 return 0;
689}
690
691/* Configure per-SSL callbacks and other properties. */
692static void configure_handshake_ssl(SSL *server, SSL *client,
693 const SSL_TEST_EXTRA_CONF *extra)
694{
695 if (extra->client.servername != SSL_TEST_SERVERNAME_NONE)
696 SSL_set_tlsext_host_name(client,
697 ssl_servername_name(extra->client.servername));
698 if (extra->client.enable_pha)
699 SSL_set_post_handshake_auth(client, 1);
700}
701
702/* The status for each connection phase. */
703typedef enum {
704 PEER_SUCCESS,
705 PEER_RETRY,
706 PEER_ERROR,
707 PEER_WAITING,
708 PEER_TEST_FAILURE
709} peer_status_t;
710
711/* An SSL object and associated read-write buffers. */
712typedef struct peer_st {
713 SSL *ssl;
714 /* Buffer lengths are int to match the SSL read/write API. */
715 unsigned char *write_buf;
716 int write_buf_len;
717 unsigned char *read_buf;
718 int read_buf_len;
719 int bytes_to_write;
720 int bytes_to_read;
721 peer_status_t status;
722} PEER;
723
724static int create_peer(PEER *peer, SSL_CTX *ctx)
725{
726 static const int peer_buffer_size = 64 * 1024;
727 SSL *ssl = NULL;
728 unsigned char *read_buf = NULL, *write_buf = NULL;
729
730 if (!TEST_ptr(ssl = SSL_new(ctx))
731 || !TEST_ptr(write_buf = OPENSSL_zalloc(peer_buffer_size))
732 || !TEST_ptr(read_buf = OPENSSL_zalloc(peer_buffer_size)))
733 goto err;
734
735 peer->ssl = ssl;
736 peer->write_buf = write_buf;
737 peer->read_buf = read_buf;
738 peer->write_buf_len = peer->read_buf_len = peer_buffer_size;
739 return 1;
740err:
741 SSL_free(ssl);
742 OPENSSL_free(write_buf);
743 OPENSSL_free(read_buf);
744 return 0;
745}
746
747static void peer_free_data(PEER *peer)
748{
749 SSL_free(peer->ssl);
750 OPENSSL_free(peer->write_buf);
751 OPENSSL_free(peer->read_buf);
752}
753
754/*
755 * Note that we could do the handshake transparently under an SSL_write,
756 * but separating the steps is more helpful for debugging test failures.
757 */
758static void do_handshake_step(PEER *peer)
759{
760 if (!TEST_int_eq(peer->status, PEER_RETRY)) {
761 peer->status = PEER_TEST_FAILURE;
762 } else {
763 int ret = SSL_do_handshake(peer->ssl);
764
765 if (ret == 1) {
766 peer->status = PEER_SUCCESS;
767 } else if (ret == 0) {
768 peer->status = PEER_ERROR;
769 } else {
770 int error = SSL_get_error(peer->ssl, ret);
771
772 /* Memory bios should never block with SSL_ERROR_WANT_WRITE. */
773 if (error != SSL_ERROR_WANT_READ
774 && error != SSL_ERROR_WANT_RETRY_VERIFY)
775 peer->status = PEER_ERROR;
776 }
777 }
778}
779
780/*-
781 * Send/receive some application data. The read-write sequence is
782 * Peer A: (R) W - first read will yield no data
783 * Peer B: R W
784 * ...
785 * Peer A: R W
786 * Peer B: R W
787 * Peer A: R
788 */
789static void do_app_data_step(PEER *peer)
790{
791 int ret = 1, write_bytes;
792
793 if (!TEST_int_eq(peer->status, PEER_RETRY)) {
794 peer->status = PEER_TEST_FAILURE;
795 return;
796 }
797
798 /* We read everything available... */
799 while (ret > 0 && peer->bytes_to_read) {
800 ret = SSL_read(peer->ssl, peer->read_buf, peer->read_buf_len);
801 if (ret > 0) {
802 if (!TEST_int_le(ret, peer->bytes_to_read)) {
803 peer->status = PEER_TEST_FAILURE;
804 return;
805 }
806 peer->bytes_to_read -= ret;
807 } else if (ret == 0) {
808 peer->status = PEER_ERROR;
809 return;
810 } else {
811 int error = SSL_get_error(peer->ssl, ret);
812 if (error != SSL_ERROR_WANT_READ) {
813 peer->status = PEER_ERROR;
814 return;
815 } /* Else continue with write. */
816 }
817 }
818
819 /* ... but we only write one write-buffer-full of data. */
820 write_bytes = peer->bytes_to_write < peer->write_buf_len ? peer->bytes_to_write :
821 peer->write_buf_len;
822 if (write_bytes) {
823 ret = SSL_write(peer->ssl, peer->write_buf, write_bytes);
824 if (ret > 0) {
825 /* SSL_write will only succeed with a complete write. */
826 if (!TEST_int_eq(ret, write_bytes)) {
827 peer->status = PEER_TEST_FAILURE;
828 return;
829 }
830 peer->bytes_to_write -= ret;
831 } else {
832 /*
833 * We should perhaps check for SSL_ERROR_WANT_READ/WRITE here
834 * but this doesn't yet occur with current app data sizes.
835 */
836 peer->status = PEER_ERROR;
837 return;
838 }
839 }
840
841 /*
842 * We could simply finish when there was nothing to read, and we have
843 * nothing left to write. But keeping track of the expected number of bytes
844 * to read gives us somewhat better guarantees that all data sent is in fact
845 * received.
846 */
847 if (peer->bytes_to_write == 0 && peer->bytes_to_read == 0) {
848 peer->status = PEER_SUCCESS;
849 }
850}
851
852static void do_reneg_setup_step(const SSL_TEST_CTX *test_ctx, PEER *peer)
853{
854 int ret;
855 char buf;
856
857 if (peer->status == PEER_SUCCESS) {
858 /*
859 * We are a client that succeeded this step previously, but the server
860 * wanted to retry. Probably there is a no_renegotiation warning alert
861 * waiting for us. Attempt to continue the handshake.
862 */
863 peer->status = PEER_RETRY;
864 do_handshake_step(peer);
865 return;
866 }
867
868 if (!TEST_int_eq(peer->status, PEER_RETRY)
869 || !TEST_true(test_ctx->handshake_mode
870 == SSL_TEST_HANDSHAKE_RENEG_SERVER
871 || test_ctx->handshake_mode
872 == SSL_TEST_HANDSHAKE_RENEG_CLIENT
873 || test_ctx->handshake_mode
874 == SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER
875 || test_ctx->handshake_mode
876 == SSL_TEST_HANDSHAKE_KEY_UPDATE_CLIENT
877 || test_ctx->handshake_mode
878 == SSL_TEST_HANDSHAKE_POST_HANDSHAKE_AUTH)) {
879 peer->status = PEER_TEST_FAILURE;
880 return;
881 }
882
883 /* Reset the count of the amount of app data we need to read/write */
884 peer->bytes_to_write = peer->bytes_to_read = test_ctx->app_data_size;
885
886 /* Check if we are the peer that is going to initiate */
887 if ((test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RENEG_SERVER
888 && SSL_is_server(peer->ssl))
889 || (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RENEG_CLIENT
890 && !SSL_is_server(peer->ssl))) {
891 /*
892 * If we already asked for a renegotiation then fall through to the
893 * SSL_read() below.
894 */
895 if (!SSL_renegotiate_pending(peer->ssl)) {
896 /*
897 * If we are the client we will always attempt to resume the
898 * session. The server may or may not resume dependent on the
899 * setting of SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
900 */
901 if (SSL_is_server(peer->ssl)) {
902 ret = SSL_renegotiate(peer->ssl);
903 } else {
904 int full_reneg = 0;
905
906 if (test_ctx->extra.client.no_extms_on_reneg) {
907 SSL_set_options(peer->ssl, SSL_OP_NO_EXTENDED_MASTER_SECRET);
908 full_reneg = 1;
909 }
910 if (test_ctx->extra.client.reneg_ciphers != NULL) {
911 if (!SSL_set_cipher_list(peer->ssl,
912 test_ctx->extra.client.reneg_ciphers)) {
913 peer->status = PEER_ERROR;
914 return;
915 }
916 full_reneg = 1;
917 }
918 if (full_reneg)
919 ret = SSL_renegotiate(peer->ssl);
920 else
921 ret = SSL_renegotiate_abbreviated(peer->ssl);
922 }
923 if (!ret) {
924 peer->status = PEER_ERROR;
925 return;
926 }
927 do_handshake_step(peer);
928 /*
929 * If status is PEER_RETRY it means we're waiting on the peer to
930 * continue the handshake. As far as setting up the renegotiation is
931 * concerned that is a success. The next step will continue the
932 * handshake to its conclusion.
933 *
934 * If status is PEER_SUCCESS then we are the server and we have
935 * successfully sent the HelloRequest. We need to continue to wait
936 * until the handshake arrives from the client.
937 */
938 if (peer->status == PEER_RETRY)
939 peer->status = PEER_SUCCESS;
940 else if (peer->status == PEER_SUCCESS)
941 peer->status = PEER_RETRY;
942 return;
943 }
944 } else if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER
945 || test_ctx->handshake_mode
946 == SSL_TEST_HANDSHAKE_KEY_UPDATE_CLIENT) {
947 if (SSL_is_server(peer->ssl)
948 != (test_ctx->handshake_mode
949 == SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER)) {
950 peer->status = PEER_SUCCESS;
951 return;
952 }
953
954 ret = SSL_key_update(peer->ssl, test_ctx->key_update_type);
955 if (!ret) {
956 peer->status = PEER_ERROR;
957 return;
958 }
959 do_handshake_step(peer);
960 /*
961 * This is a one step handshake. We shouldn't get anything other than
962 * PEER_SUCCESS
963 */
964 if (peer->status != PEER_SUCCESS)
965 peer->status = PEER_ERROR;
966 return;
967 } else if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_POST_HANDSHAKE_AUTH) {
968 if (SSL_is_server(peer->ssl)) {
969 /* Make the server believe it's received the extension */
970 if (test_ctx->extra.server.force_pha)
971 peer->ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED;
972 ret = SSL_verify_client_post_handshake(peer->ssl);
973 if (!ret) {
974 peer->status = PEER_ERROR;
975 return;
976 }
977 }
978 do_handshake_step(peer);
979 /*
980 * This is a one step handshake. We shouldn't get anything other than
981 * PEER_SUCCESS
982 */
983 if (peer->status != PEER_SUCCESS)
984 peer->status = PEER_ERROR;
985 return;
986 }
987
988 /*
989 * The SSL object is still expecting app data, even though it's going to
990 * get a handshake message. We try to read, and it should fail - after which
991 * we should be in a handshake
992 */
993 ret = SSL_read(peer->ssl, &buf, sizeof(buf));
994 if (ret >= 0) {
995 /*
996 * We're not actually expecting data - we're expecting a reneg to
997 * start
998 */
999 peer->status = PEER_ERROR;
1000 return;
1001 } else {
1002 int error = SSL_get_error(peer->ssl, ret);
1003 if (error != SSL_ERROR_WANT_READ) {
1004 peer->status = PEER_ERROR;
1005 return;
1006 }
1007 /* If we're not in init yet then we're not done with setup yet */
1008 if (!SSL_in_init(peer->ssl))
1009 return;
1010 }
1011
1012 peer->status = PEER_SUCCESS;
1013}
1014
1015
1016/*
1017 * RFC 5246 says:
1018 *
1019 * Note that as of TLS 1.1,
1020 * failure to properly close a connection no longer requires that a
1021 * session not be resumed. This is a change from TLS 1.0 to conform
1022 * with widespread implementation practice.
1023 *
1024 * However,
1025 * (a) OpenSSL requires that a connection be shutdown for all protocol versions.
1026 * (b) We test lower versions, too.
1027 * So we just implement shutdown. We do a full bidirectional shutdown so that we
1028 * can compare sent and received close_notify alerts and get some test coverage
1029 * for SSL_shutdown as a bonus.
1030 */
1031static void do_shutdown_step(PEER *peer)
1032{
1033 int ret;
1034
1035 if (!TEST_int_eq(peer->status, PEER_RETRY)) {
1036 peer->status = PEER_TEST_FAILURE;
1037 return;
1038 }
1039 ret = SSL_shutdown(peer->ssl);
1040
1041 if (ret == 1) {
1042 peer->status = PEER_SUCCESS;
1043 } else if (ret < 0) { /* On 0, we retry. */
1044 int error = SSL_get_error(peer->ssl, ret);
1045
1046 if (error != SSL_ERROR_WANT_READ && error != SSL_ERROR_WANT_WRITE)
1047 peer->status = PEER_ERROR;
1048 }
1049}
1050
1051typedef enum {
1052 HANDSHAKE,
1053 RENEG_APPLICATION_DATA,
1054 RENEG_SETUP,
1055 RENEG_HANDSHAKE,
1056 APPLICATION_DATA,
1057 SHUTDOWN,
1058 CONNECTION_DONE
1059} connect_phase_t;
1060
1061
1062static int renegotiate_op(const SSL_TEST_CTX *test_ctx)
1063{
1064 switch (test_ctx->handshake_mode) {
1065 case SSL_TEST_HANDSHAKE_RENEG_SERVER:
1066 case SSL_TEST_HANDSHAKE_RENEG_CLIENT:
1067 return 1;
1068 default:
1069 return 0;
1070 }
1071}
1072static int post_handshake_op(const SSL_TEST_CTX *test_ctx)
1073{
1074 switch (test_ctx->handshake_mode) {
1075 case SSL_TEST_HANDSHAKE_KEY_UPDATE_CLIENT:
1076 case SSL_TEST_HANDSHAKE_KEY_UPDATE_SERVER:
1077 case SSL_TEST_HANDSHAKE_POST_HANDSHAKE_AUTH:
1078 return 1;
1079 default:
1080 return 0;
1081 }
1082}
1083
1084static connect_phase_t next_phase(const SSL_TEST_CTX *test_ctx,
1085 connect_phase_t phase)
1086{
1087 switch (phase) {
1088 case HANDSHAKE:
1089 if (renegotiate_op(test_ctx) || post_handshake_op(test_ctx))
1090 return RENEG_APPLICATION_DATA;
1091 return APPLICATION_DATA;
1092 case RENEG_APPLICATION_DATA:
1093 return RENEG_SETUP;
1094 case RENEG_SETUP:
1095 if (post_handshake_op(test_ctx))
1096 return APPLICATION_DATA;
1097 return RENEG_HANDSHAKE;
1098 case RENEG_HANDSHAKE:
1099 return APPLICATION_DATA;
1100 case APPLICATION_DATA:
1101 return SHUTDOWN;
1102 case SHUTDOWN:
1103 return CONNECTION_DONE;
1104 case CONNECTION_DONE:
1105 TEST_error("Trying to progress after connection done");
1106 break;
1107 }
1108 return -1;
1109}
1110
1111static void do_connect_step(const SSL_TEST_CTX *test_ctx, PEER *peer,
1112 connect_phase_t phase)
1113{
1114 switch (phase) {
1115 case HANDSHAKE:
1116 do_handshake_step(peer);
1117 break;
1118 case RENEG_APPLICATION_DATA:
1119 do_app_data_step(peer);
1120 break;
1121 case RENEG_SETUP:
1122 do_reneg_setup_step(test_ctx, peer);
1123 break;
1124 case RENEG_HANDSHAKE:
1125 do_handshake_step(peer);
1126 break;
1127 case APPLICATION_DATA:
1128 do_app_data_step(peer);
1129 break;
1130 case SHUTDOWN:
1131 do_shutdown_step(peer);
1132 break;
1133 case CONNECTION_DONE:
1134 TEST_error("Action after connection done");
1135 break;
1136 }
1137}
1138
1139typedef enum {
1140 /* Both parties succeeded. */
1141 HANDSHAKE_SUCCESS,
1142 /* Client errored. */
1143 CLIENT_ERROR,
1144 /* Server errored. */
1145 SERVER_ERROR,
1146 /* Peers are in inconsistent state. */
1147 INTERNAL_ERROR,
1148 /* One or both peers not done. */
1149 HANDSHAKE_RETRY
1150} handshake_status_t;
1151
1152/*
1153 * Determine the handshake outcome.
1154 * last_status: the status of the peer to have acted last.
1155 * previous_status: the status of the peer that didn't act last.
1156 * client_spoke_last: 1 if the client went last.
1157 */
1158static handshake_status_t handshake_status(peer_status_t last_status,
1159 peer_status_t previous_status,
1160 int client_spoke_last)
1161{
1162 switch (last_status) {
1163 case PEER_TEST_FAILURE:
1164 return INTERNAL_ERROR;
1165
1166 case PEER_WAITING:
1167 /* Shouldn't ever happen */
1168 return INTERNAL_ERROR;
1169
1170 case PEER_SUCCESS:
1171 switch (previous_status) {
1172 case PEER_TEST_FAILURE:
1173 return INTERNAL_ERROR;
1174 case PEER_SUCCESS:
1175 /* Both succeeded. */
1176 return HANDSHAKE_SUCCESS;
1177 case PEER_WAITING:
1178 case PEER_RETRY:
1179 /* Let the first peer finish. */
1180 return HANDSHAKE_RETRY;
1181 case PEER_ERROR:
1182 /*
1183 * Second peer succeeded despite the fact that the first peer
1184 * already errored. This shouldn't happen.
1185 */
1186 return INTERNAL_ERROR;
1187 }
1188 break;
1189
1190 case PEER_RETRY:
1191 return HANDSHAKE_RETRY;
1192
1193 case PEER_ERROR:
1194 switch (previous_status) {
1195 case PEER_TEST_FAILURE:
1196 return INTERNAL_ERROR;
1197 case PEER_WAITING:
1198 /* The client failed immediately before sending the ClientHello */
1199 return client_spoke_last ? CLIENT_ERROR : INTERNAL_ERROR;
1200 case PEER_SUCCESS:
1201 /* First peer succeeded but second peer errored. */
1202 return client_spoke_last ? CLIENT_ERROR : SERVER_ERROR;
1203 case PEER_RETRY:
1204 /* We errored; let the peer finish. */
1205 return HANDSHAKE_RETRY;
1206 case PEER_ERROR:
1207 /* Both peers errored. Return the one that errored first. */
1208 return client_spoke_last ? SERVER_ERROR : CLIENT_ERROR;
1209 }
1210 }
1211 /* Control should never reach here. */
1212 return INTERNAL_ERROR;
1213}
1214
1215/* Convert unsigned char buf's that shouldn't contain any NUL-bytes to char. */
1216static char *dup_str(const unsigned char *in, size_t len)
1217{
1218 char *ret = NULL;
1219
1220 if (len == 0)
1221 return NULL;
1222
1223 /* Assert that the string does not contain NUL-bytes. */
1224 if (TEST_size_t_eq(OPENSSL_strnlen((const char*)(in), len), len))
1225 TEST_ptr(ret = OPENSSL_strndup((const char*)(in), len));
1226 return ret;
1227}
1228
1229static int pkey_type(EVP_PKEY *pkey)
1230{
1231 if (EVP_PKEY_is_a(pkey, "EC")) {
1232 char name[80];
1233 size_t name_len;
1234
1235 if (!EVP_PKEY_get_group_name(pkey, name, sizeof(name), &name_len))
1236 return NID_undef;
1237 return OBJ_txt2nid(name);
1238 }
1239 return EVP_PKEY_get_id(pkey);
1240}
1241
1242static int peer_pkey_type(SSL *s)
1243{
1244 X509 *x = SSL_get0_peer_certificate(s);
1245
1246 if (x != NULL)
1247 return pkey_type(X509_get0_pubkey(x));
1248 return NID_undef;
1249}
1250
1251#if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
1252static int set_sock_as_sctp(int sock)
1253{
1254 struct sctp_assocparams assocparams;
1255 struct sctp_rtoinfo rto_info;
1256 BIO *tmpbio;
1257
1258 /*
1259 * To allow tests to fail fast (within a second or so), reduce the
1260 * retransmission timeouts and the number of retransmissions.
1261 */
1262 memset(&rto_info, 0, sizeof(struct sctp_rtoinfo));
1263 rto_info.srto_initial = 100;
1264 rto_info.srto_max = 200;
1265 rto_info.srto_min = 50;
1266 (void)setsockopt(sock, IPPROTO_SCTP, SCTP_RTOINFO,
1267 (const void *)&rto_info, sizeof(struct sctp_rtoinfo));
1268 memset(&assocparams, 0, sizeof(struct sctp_assocparams));
1269 assocparams.sasoc_asocmaxrxt = 2;
1270 (void)setsockopt(sock, IPPROTO_SCTP, SCTP_ASSOCINFO,
1271 (const void *)&assocparams,
1272 sizeof(struct sctp_assocparams));
1273
1274 /*
1275 * For SCTP we have to set various options on the socket prior to
1276 * connecting. This is done automatically by BIO_new_dgram_sctp().
1277 * We don't actually need the created BIO though so we free it again
1278 * immediately.
1279 */
1280 tmpbio = BIO_new_dgram_sctp(sock, BIO_NOCLOSE);
1281
1282 if (tmpbio == NULL)
1283 return 0;
1284 BIO_free(tmpbio);
1285
1286 return 1;
1287}
1288
1289static int create_sctp_socks(int *ssock, int *csock)
1290{
1291 BIO_ADDRINFO *res = NULL;
1292 const BIO_ADDRINFO *ai = NULL;
1293 int lsock = INVALID_SOCKET, asock = INVALID_SOCKET;
1294 int consock = INVALID_SOCKET;
1295 int ret = 0;
1296 int family = 0;
1297
1298 if (BIO_sock_init() != 1)
1299 return 0;
1300
1301 /*
1302 * Port is 4463. It could be anything. It will fail if it's already being
1303 * used for some other SCTP service. It seems unlikely though so we don't
1304 * worry about it here.
1305 */
1306 if (!BIO_lookup_ex(NULL, "4463", BIO_LOOKUP_SERVER, family, SOCK_STREAM,
1307 IPPROTO_SCTP, &res))
1308 return 0;
1309
1310 for (ai = res; ai != NULL; ai = BIO_ADDRINFO_next(ai)) {
1311 family = BIO_ADDRINFO_family(ai);
1312 lsock = BIO_socket(family, SOCK_STREAM, IPPROTO_SCTP, 0);
1313 if (lsock == INVALID_SOCKET) {
1314 /* Maybe the kernel doesn't support the socket family, even if
1315 * BIO_lookup() added it in the returned result...
1316 */
1317 continue;
1318 }
1319
1320 if (!set_sock_as_sctp(lsock)
1321 || !BIO_listen(lsock, BIO_ADDRINFO_address(ai),
1322 BIO_SOCK_REUSEADDR)) {
1323 BIO_closesocket(lsock);
1324 lsock = INVALID_SOCKET;
1325 continue;
1326 }
1327
1328 /* Success, don't try any more addresses */
1329 break;
1330 }
1331
1332 if (lsock == INVALID_SOCKET)
1333 goto err;
1334
1335 BIO_ADDRINFO_free(res);
1336 res = NULL;
1337
1338 if (!BIO_lookup_ex(NULL, "4463", BIO_LOOKUP_CLIENT, family, SOCK_STREAM,
1339 IPPROTO_SCTP, &res))
1340 goto err;
1341
1342 consock = BIO_socket(family, SOCK_STREAM, IPPROTO_SCTP, 0);
1343 if (consock == INVALID_SOCKET)
1344 goto err;
1345
1346 if (!set_sock_as_sctp(consock)
1347 || !BIO_connect(consock, BIO_ADDRINFO_address(res), 0)
1348 || !BIO_socket_nbio(consock, 1))
1349 goto err;
1350
1351 asock = BIO_accept_ex(lsock, NULL, BIO_SOCK_NONBLOCK);
1352 if (asock == INVALID_SOCKET)
1353 goto err;
1354
1355 *csock = consock;
1356 *ssock = asock;
1357 consock = asock = INVALID_SOCKET;
1358 ret = 1;
1359
1360 err:
1361 BIO_ADDRINFO_free(res);
1362 if (consock != INVALID_SOCKET)
1363 BIO_closesocket(consock);
1364 if (lsock != INVALID_SOCKET)
1365 BIO_closesocket(lsock);
1366 if (asock != INVALID_SOCKET)
1367 BIO_closesocket(asock);
1368 return ret;
1369}
1370#endif
1371
1372/*
1373 * Note that |extra| points to the correct client/server configuration
1374 * within |test_ctx|. When configuring the handshake, general mode settings
1375 * are taken from |test_ctx|, and client/server-specific settings should be
1376 * taken from |extra|.
1377 *
1378 * The configuration code should never reach into |test_ctx->extra| or
1379 * |test_ctx->resume_extra| directly.
1380 *
1381 * (We could refactor test mode settings into a substructure. This would result
1382 * in cleaner argument passing but would complicate the test configuration
1383 * parsing.)
1384 */
1385static HANDSHAKE_RESULT *do_handshake_internal(
1386 SSL_CTX *server_ctx, SSL_CTX *server2_ctx, SSL_CTX *client_ctx,
1387 const SSL_TEST_CTX *test_ctx, const SSL_TEST_EXTRA_CONF *extra,
1388 SSL_SESSION *session_in, SSL_SESSION *serv_sess_in,
1389 SSL_SESSION **session_out, SSL_SESSION **serv_sess_out)
1390{
1391 PEER server, client;
1392 BIO *client_to_server = NULL, *server_to_client = NULL;
1393 HANDSHAKE_EX_DATA server_ex_data, client_ex_data;
1394 CTX_DATA client_ctx_data, server_ctx_data, server2_ctx_data;
1395 HANDSHAKE_RESULT *ret = HANDSHAKE_RESULT_new();
1396 int client_turn = 1, client_turn_count = 0, client_wait_count = 0;
1397 connect_phase_t phase = HANDSHAKE;
1398 handshake_status_t status = HANDSHAKE_RETRY;
1399 const unsigned char* tick = NULL;
1400 size_t tick_len = 0;
1401 const unsigned char* sess_id = NULL;
1402 unsigned int sess_id_len = 0;
1403 SSL_SESSION* sess = NULL;
1404 const unsigned char *proto = NULL;
1405 /* API dictates unsigned int rather than size_t. */
1406 unsigned int proto_len = 0;
1407 EVP_PKEY *tmp_key;
1408 const STACK_OF(X509_NAME) *names;
1409 time_t start;
1410 const char* cipher;
1411
1412 if (ret == NULL)
1413 return NULL;
1414
1415 memset(&server_ctx_data, 0, sizeof(server_ctx_data));
1416 memset(&server2_ctx_data, 0, sizeof(server2_ctx_data));
1417 memset(&client_ctx_data, 0, sizeof(client_ctx_data));
1418 memset(&server, 0, sizeof(server));
1419 memset(&client, 0, sizeof(client));
1420 memset(&server_ex_data, 0, sizeof(server_ex_data));
1421 memset(&client_ex_data, 0, sizeof(client_ex_data));
1422
1423 if (!configure_handshake_ctx(server_ctx, server2_ctx, client_ctx,
1424 test_ctx, extra, &server_ctx_data,
1425 &server2_ctx_data, &client_ctx_data)) {
1426 TEST_note("configure_handshake_ctx");
1427 return NULL;
1428 }
1429
1430#if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
1431 if (test_ctx->enable_client_sctp_label_bug)
1432 SSL_CTX_set_mode(client_ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1433 if (test_ctx->enable_server_sctp_label_bug)
1434 SSL_CTX_set_mode(server_ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1435#endif
1436
1437 /* Setup SSL and buffers; additional configuration happens below. */
1438 if (!create_peer(&server, server_ctx)) {
1439 TEST_note("creating server context");
1440 goto err;
1441 }
1442 if (!create_peer(&client, client_ctx)) {
1443 TEST_note("creating client context");
1444 goto err;
1445 }
1446
1447 server.bytes_to_write = client.bytes_to_read = test_ctx->app_data_size;
1448 client.bytes_to_write = server.bytes_to_read = test_ctx->app_data_size;
1449
1450 configure_handshake_ssl(server.ssl, client.ssl, extra);
1451 if (session_in != NULL) {
1452 SSL_SESSION_get_id(serv_sess_in, &sess_id_len);
1453 /* In case we're testing resumption without tickets. */
1454 if ((sess_id_len > 0
1455 && !TEST_true(SSL_CTX_add_session(server_ctx,
1456 serv_sess_in)))
1457 || !TEST_true(SSL_set_session(client.ssl, session_in)))
1458 goto err;
1459 sess_id_len = 0;
1460 }
1461
1462 ret->result = SSL_TEST_INTERNAL_ERROR;
1463
1464 if (test_ctx->use_sctp) {
1465#if !defined(OPENSSL_NO_SCTP) && !defined(OPENSSL_NO_SOCK)
1466 int csock, ssock;
1467
1468 if (create_sctp_socks(&ssock, &csock)) {
1469 client_to_server = BIO_new_dgram_sctp(csock, BIO_CLOSE);
1470 server_to_client = BIO_new_dgram_sctp(ssock, BIO_CLOSE);
1471 }
1472#endif
1473 } else {
1474 client_to_server = BIO_new(BIO_s_mem());
1475 server_to_client = BIO_new(BIO_s_mem());
1476 }
1477
1478 if (!TEST_ptr(client_to_server)
1479 || !TEST_ptr(server_to_client))
1480 goto err;
1481
1482 /* Non-blocking bio. */
1483 BIO_set_nbio(client_to_server, 1);
1484 BIO_set_nbio(server_to_client, 1);
1485
1486 SSL_set_connect_state(client.ssl);
1487 SSL_set_accept_state(server.ssl);
1488
1489 /* The bios are now owned by the SSL object. */
1490 if (test_ctx->use_sctp) {
1491 SSL_set_bio(client.ssl, client_to_server, client_to_server);
1492 SSL_set_bio(server.ssl, server_to_client, server_to_client);
1493 } else {
1494 SSL_set_bio(client.ssl, server_to_client, client_to_server);
1495 if (!TEST_int_gt(BIO_up_ref(server_to_client), 0)
1496 || !TEST_int_gt(BIO_up_ref(client_to_server), 0))
1497 goto err;
1498 SSL_set_bio(server.ssl, client_to_server, server_to_client);
1499 }
1500
1501 ex_data_idx = SSL_get_ex_new_index(0, "ex data", NULL, NULL, NULL);
1502 if (!TEST_int_ge(ex_data_idx, 0)
1503 || !TEST_int_eq(SSL_set_ex_data(server.ssl, ex_data_idx, &server_ex_data), 1)
1504 || !TEST_int_eq(SSL_set_ex_data(client.ssl, ex_data_idx, &client_ex_data), 1))
1505 goto err;
1506
1507 SSL_set_info_callback(server.ssl, &info_cb);
1508 SSL_set_info_callback(client.ssl, &info_cb);
1509
1510 client.status = PEER_RETRY;
1511 server.status = PEER_WAITING;
1512
1513 start = time(NULL);
1514
1515 /*
1516 * Half-duplex handshake loop.
1517 * Client and server speak to each other synchronously in the same process.
1518 * We use non-blocking BIOs, so whenever one peer blocks for read, it
1519 * returns PEER_RETRY to indicate that it's the other peer's turn to write.
1520 * The handshake succeeds once both peers have succeeded. If one peer
1521 * errors out, we also let the other peer retry (and presumably fail).
1522 */
1523 for(;;) {
1524 if (client_turn) {
1525 do_connect_step(test_ctx, &client, phase);
1526 status = handshake_status(client.status, server.status,
1527 1 /* client went last */);
1528 if (server.status == PEER_WAITING)
1529 server.status = PEER_RETRY;
1530 } else {
1531 do_connect_step(test_ctx, &server, phase);
1532 status = handshake_status(server.status, client.status,
1533 0 /* server went last */);
1534 }
1535
1536 switch (status) {
1537 case HANDSHAKE_SUCCESS:
1538 client_turn_count = 0;
1539 phase = next_phase(test_ctx, phase);
1540 if (phase == CONNECTION_DONE) {
1541 ret->result = SSL_TEST_SUCCESS;
1542 goto err;
1543 } else {
1544 client.status = server.status = PEER_RETRY;
1545 /*
1546 * For now, client starts each phase. Since each phase is
1547 * started separately, we can later control this more
1548 * precisely, for example, to test client-initiated and
1549 * server-initiated shutdown.
1550 */
1551 client_turn = 1;
1552 break;
1553 }
1554 case CLIENT_ERROR:
1555 ret->result = SSL_TEST_CLIENT_FAIL;
1556 goto err;
1557 case SERVER_ERROR:
1558 ret->result = SSL_TEST_SERVER_FAIL;
1559 goto err;
1560 case INTERNAL_ERROR:
1561 ret->result = SSL_TEST_INTERNAL_ERROR;
1562 goto err;
1563 case HANDSHAKE_RETRY:
1564 if (test_ctx->use_sctp) {
1565 if (time(NULL) - start > 3) {
1566 /*
1567 * We've waited for too long. Give up.
1568 */
1569 ret->result = SSL_TEST_INTERNAL_ERROR;
1570 goto err;
1571 }
1572 /*
1573 * With "real" sockets we only swap to processing the peer
1574 * if they are expecting to retry. Otherwise we just retry the
1575 * same endpoint again.
1576 */
1577 if ((client_turn && server.status == PEER_RETRY)
1578 || (!client_turn && client.status == PEER_RETRY))
1579 client_turn ^= 1;
1580 } else {
1581 if (client_turn_count++ >= 2000) {
1582 /*
1583 * At this point, there's been so many PEER_RETRY in a row
1584 * that it's likely both sides are stuck waiting for a read.
1585 * It's time to give up.
1586 */
1587 ret->result = SSL_TEST_INTERNAL_ERROR;
1588 goto err;
1589 }
1590 if (client_turn && server.status == PEER_SUCCESS) {
1591 /*
1592 * The server may finish before the client because the
1593 * client spends some turns processing NewSessionTickets.
1594 */
1595 if (client_wait_count++ >= 2) {
1596 ret->result = SSL_TEST_INTERNAL_ERROR;
1597 goto err;
1598 }
1599 } else {
1600 /* Continue. */
1601 client_turn ^= 1;
1602 }
1603 }
1604 break;
1605 }
1606 }
1607 err:
1608 ret->server_alert_sent = server_ex_data.alert_sent;
1609 ret->server_num_fatal_alerts_sent = server_ex_data.num_fatal_alerts_sent;
1610 ret->server_alert_received = client_ex_data.alert_received;
1611 ret->client_alert_sent = client_ex_data.alert_sent;
1612 ret->client_num_fatal_alerts_sent = client_ex_data.num_fatal_alerts_sent;
1613 ret->client_alert_received = server_ex_data.alert_received;
1614 ret->server_protocol = SSL_version(server.ssl);
1615 ret->client_protocol = SSL_version(client.ssl);
1616 ret->servername = server_ex_data.servername;
1617 if ((sess = SSL_get0_session(client.ssl)) != NULL) {
1618 SSL_SESSION_get0_ticket(sess, &tick, &tick_len);
1619 sess_id = SSL_SESSION_get_id(sess, &sess_id_len);
1620 }
1621 if (tick == NULL || tick_len == 0)
1622 ret->session_ticket = SSL_TEST_SESSION_TICKET_NO;
1623 else
1624 ret->session_ticket = SSL_TEST_SESSION_TICKET_YES;
1625 ret->compression = (SSL_get_current_compression(client.ssl) == NULL)
1626 ? SSL_TEST_COMPRESSION_NO
1627 : SSL_TEST_COMPRESSION_YES;
1628 if (sess_id == NULL || sess_id_len == 0)
1629 ret->session_id = SSL_TEST_SESSION_ID_NO;
1630 else
1631 ret->session_id = SSL_TEST_SESSION_ID_YES;
1632 ret->session_ticket_do_not_call = server_ex_data.session_ticket_do_not_call;
1633
1634 if (extra->client.verify_callback == SSL_TEST_VERIFY_RETRY_ONCE
1635 && n_retries != -1)
1636 ret->result = SSL_TEST_SERVER_FAIL;
1637
1638#ifndef OPENSSL_NO_NEXTPROTONEG
1639 SSL_get0_next_proto_negotiated(client.ssl, &proto, &proto_len);
1640 ret->client_npn_negotiated = dup_str(proto, proto_len);
1641
1642 SSL_get0_next_proto_negotiated(server.ssl, &proto, &proto_len);
1643 ret->server_npn_negotiated = dup_str(proto, proto_len);
1644#endif
1645
1646 SSL_get0_alpn_selected(client.ssl, &proto, &proto_len);
1647 ret->client_alpn_negotiated = dup_str(proto, proto_len);
1648
1649 SSL_get0_alpn_selected(server.ssl, &proto, &proto_len);
1650 ret->server_alpn_negotiated = dup_str(proto, proto_len);
1651
1652 if ((sess = SSL_get0_session(server.ssl)) != NULL) {
1653 SSL_SESSION_get0_ticket_appdata(sess, (void**)&tick, &tick_len);
1654 ret->result_session_ticket_app_data = OPENSSL_strndup((const char*)tick, tick_len);
1655 }
1656
1657 ret->client_resumed = SSL_session_reused(client.ssl);
1658 ret->server_resumed = SSL_session_reused(server.ssl);
1659
1660 cipher = SSL_CIPHER_get_name(SSL_get_current_cipher(client.ssl));
1661 ret->cipher = dup_str((const unsigned char*)cipher, strlen(cipher));
1662
1663 if (session_out != NULL)
1664 *session_out = SSL_get1_session(client.ssl);
1665 if (serv_sess_out != NULL) {
1666 SSL_SESSION *tmp = SSL_get_session(server.ssl);
1667
1668 /*
1669 * We create a fresh copy that is not in the server session ctx linked
1670 * list.
1671 */
1672 if (tmp != NULL)
1673 *serv_sess_out = SSL_SESSION_dup(tmp);
1674 }
1675
1676 if (SSL_get_peer_tmp_key(client.ssl, &tmp_key)) {
1677 ret->tmp_key_type = pkey_type(tmp_key);
1678 EVP_PKEY_free(tmp_key);
1679 }
1680
1681 SSL_get_peer_signature_nid(client.ssl, &ret->server_sign_hash);
1682 SSL_get_peer_signature_nid(server.ssl, &ret->client_sign_hash);
1683
1684 SSL_get_peer_signature_type_nid(client.ssl, &ret->server_sign_type);
1685 SSL_get_peer_signature_type_nid(server.ssl, &ret->client_sign_type);
1686
1687 names = SSL_get0_peer_CA_list(client.ssl);
1688 if (names == NULL)
1689 ret->client_ca_names = NULL;
1690 else
1691 ret->client_ca_names = SSL_dup_CA_list(names);
1692
1693 names = SSL_get0_peer_CA_list(server.ssl);
1694 if (names == NULL)
1695 ret->server_ca_names = NULL;
1696 else
1697 ret->server_ca_names = SSL_dup_CA_list(names);
1698
1699 ret->server_cert_type = peer_pkey_type(client.ssl);
1700 ret->client_cert_type = peer_pkey_type(server.ssl);
1701
1702 ctx_data_free_data(&server_ctx_data);
1703 ctx_data_free_data(&server2_ctx_data);
1704 ctx_data_free_data(&client_ctx_data);
1705
1706 peer_free_data(&server);
1707 peer_free_data(&client);
1708 return ret;
1709}
1710
1711HANDSHAKE_RESULT *do_handshake(SSL_CTX *server_ctx, SSL_CTX *server2_ctx,
1712 SSL_CTX *client_ctx, SSL_CTX *resume_server_ctx,
1713 SSL_CTX *resume_client_ctx,
1714 const SSL_TEST_CTX *test_ctx)
1715{
1716 HANDSHAKE_RESULT *result;
1717 SSL_SESSION *session = NULL, *serv_sess = NULL;
1718
1719 result = do_handshake_internal(server_ctx, server2_ctx, client_ctx,
1720 test_ctx, &test_ctx->extra,
1721 NULL, NULL, &session, &serv_sess);
1722 if (result == NULL
1723 || test_ctx->handshake_mode != SSL_TEST_HANDSHAKE_RESUME
1724 || result->result == SSL_TEST_INTERNAL_ERROR)
1725 goto end;
1726
1727 if (result->result != SSL_TEST_SUCCESS) {
1728 result->result = SSL_TEST_FIRST_HANDSHAKE_FAILED;
1729 goto end;
1730 }
1731
1732 HANDSHAKE_RESULT_free(result);
1733 /* We don't support SNI on second handshake yet, so server2_ctx is NULL. */
1734 result = do_handshake_internal(resume_server_ctx, NULL, resume_client_ctx,
1735 test_ctx, &test_ctx->resume_extra,
1736 session, serv_sess, NULL, NULL);
1737 end:
1738 SSL_SESSION_free(session);
1739 SSL_SESSION_free(serv_sess);
1740 return result;
1741}
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