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source: vbox/trunk/src/libs/openssl-3.3.1/ssl/ssl_lib.c@ 105970

Last change on this file since 105970 was 105918, checked in by vboxsync, 7 months ago

openssl-3.3.1: Applied and adjusted our OpenSSL changes to 3.1.5. bugref:10757
File size: 208.5 KB
Line 
1/*
2 * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
5 *
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
10 */
11
12#include <stdio.h>
13#include "ssl_local.h"
14#include "internal/e_os.h"
15#include <openssl/objects.h>
16#include <openssl/x509v3.h>
17#include <openssl/rand.h>
18#include <openssl/ocsp.h>
19#include <openssl/dh.h>
20#include <openssl/engine.h>
21#include <openssl/async.h>
22#include <openssl/ct.h>
23#include <openssl/trace.h>
24#include <openssl/core_names.h>
25#include "internal/cryptlib.h"
26#include "internal/nelem.h"
27#include "internal/refcount.h"
28#include "internal/ktls.h"
29#include "quic/quic_local.h"
30
31static int ssl_undefined_function_3(SSL_CONNECTION *sc, unsigned char *r,
32 unsigned char *s, size_t t, size_t *u)
33{
34 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
35}
36
37static int ssl_undefined_function_4(SSL_CONNECTION *sc, int r)
38{
39 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
40}
41
42static size_t ssl_undefined_function_5(SSL_CONNECTION *sc, const char *r,
43 size_t s, unsigned char *t)
44{
45 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
46}
47
48static int ssl_undefined_function_6(int r)
49{
50 return ssl_undefined_function(NULL);
51}
52
53static int ssl_undefined_function_7(SSL_CONNECTION *sc, unsigned char *r,
54 size_t s, const char *t, size_t u,
55 const unsigned char *v, size_t w, int x)
56{
57 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
58}
59
60static int ssl_undefined_function_8(SSL_CONNECTION *sc)
61{
62 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc));
63}
64
65const SSL3_ENC_METHOD ssl3_undef_enc_method = {
66 ssl_undefined_function_8,
67 ssl_undefined_function_3,
68 ssl_undefined_function_4,
69 ssl_undefined_function_5,
70 NULL, /* client_finished_label */
71 0, /* client_finished_label_len */
72 NULL, /* server_finished_label */
73 0, /* server_finished_label_len */
74 ssl_undefined_function_6,
75 ssl_undefined_function_7,
76};
77
78struct ssl_async_args {
79 SSL *s;
80 void *buf;
81 size_t num;
82 enum { READFUNC, WRITEFUNC, OTHERFUNC } type;
83 union {
84 int (*func_read) (SSL *, void *, size_t, size_t *);
85 int (*func_write) (SSL *, const void *, size_t, size_t *);
86 int (*func_other) (SSL *);
87 } f;
88};
89
90static const struct {
91 uint8_t mtype;
92 uint8_t ord;
93 int nid;
94} dane_mds[] = {
95 {
96 DANETLS_MATCHING_FULL, 0, NID_undef
97 },
98 {
99 DANETLS_MATCHING_2256, 1, NID_sha256
100 },
101 {
102 DANETLS_MATCHING_2512, 2, NID_sha512
103 },
104};
105
106static int dane_ctx_enable(struct dane_ctx_st *dctx)
107{
108 const EVP_MD **mdevp;
109 uint8_t *mdord;
110 uint8_t mdmax = DANETLS_MATCHING_LAST;
111 int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */
112 size_t i;
113
114 if (dctx->mdevp != NULL)
115 return 1;
116
117 mdevp = OPENSSL_zalloc(n * sizeof(*mdevp));
118 mdord = OPENSSL_zalloc(n * sizeof(*mdord));
119
120 if (mdord == NULL || mdevp == NULL) {
121 OPENSSL_free(mdord);
122 OPENSSL_free(mdevp);
123 return 0;
124 }
125
126 /* Install default entries */
127 for (i = 0; i < OSSL_NELEM(dane_mds); ++i) {
128 const EVP_MD *md;
129
130 if (dane_mds[i].nid == NID_undef ||
131 (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL)
132 continue;
133 mdevp[dane_mds[i].mtype] = md;
134 mdord[dane_mds[i].mtype] = dane_mds[i].ord;
135 }
136
137 dctx->mdevp = mdevp;
138 dctx->mdord = mdord;
139 dctx->mdmax = mdmax;
140
141 return 1;
142}
143
144static void dane_ctx_final(struct dane_ctx_st *dctx)
145{
146 OPENSSL_free(dctx->mdevp);
147 dctx->mdevp = NULL;
148
149 OPENSSL_free(dctx->mdord);
150 dctx->mdord = NULL;
151 dctx->mdmax = 0;
152}
153
154static void tlsa_free(danetls_record *t)
155{
156 if (t == NULL)
157 return;
158 OPENSSL_free(t->data);
159 EVP_PKEY_free(t->spki);
160 OPENSSL_free(t);
161}
162
163static void dane_final(SSL_DANE *dane)
164{
165 sk_danetls_record_pop_free(dane->trecs, tlsa_free);
166 dane->trecs = NULL;
167
168 OSSL_STACK_OF_X509_free(dane->certs);
169 dane->certs = NULL;
170
171 X509_free(dane->mcert);
172 dane->mcert = NULL;
173 dane->mtlsa = NULL;
174 dane->mdpth = -1;
175 dane->pdpth = -1;
176}
177
178/*
179 * dane_copy - Copy dane configuration, sans verification state.
180 */
181static int ssl_dane_dup(SSL_CONNECTION *to, SSL_CONNECTION *from)
182{
183 int num;
184 int i;
185
186 if (!DANETLS_ENABLED(&from->dane))
187 return 1;
188
189 num = sk_danetls_record_num(from->dane.trecs);
190 dane_final(&to->dane);
191 to->dane.flags = from->dane.flags;
192 to->dane.dctx = &SSL_CONNECTION_GET_CTX(to)->dane;
193 to->dane.trecs = sk_danetls_record_new_reserve(NULL, num);
194
195 if (to->dane.trecs == NULL) {
196 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
197 return 0;
198 }
199
200 for (i = 0; i < num; ++i) {
201 danetls_record *t = sk_danetls_record_value(from->dane.trecs, i);
202
203 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to), t->usage,
204 t->selector, t->mtype, t->data, t->dlen) <= 0)
205 return 0;
206 }
207 return 1;
208}
209
210static int dane_mtype_set(struct dane_ctx_st *dctx,
211 const EVP_MD *md, uint8_t mtype, uint8_t ord)
212{
213 int i;
214
215 if (mtype == DANETLS_MATCHING_FULL && md != NULL) {
216 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL);
217 return 0;
218 }
219
220 if (mtype > dctx->mdmax) {
221 const EVP_MD **mdevp;
222 uint8_t *mdord;
223 int n = ((int)mtype) + 1;
224
225 mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp));
226 if (mdevp == NULL)
227 return -1;
228 dctx->mdevp = mdevp;
229
230 mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord));
231 if (mdord == NULL)
232 return -1;
233 dctx->mdord = mdord;
234
235 /* Zero-fill any gaps */
236 for (i = dctx->mdmax + 1; i < mtype; ++i) {
237 mdevp[i] = NULL;
238 mdord[i] = 0;
239 }
240
241 dctx->mdmax = mtype;
242 }
243
244 dctx->mdevp[mtype] = md;
245 /* Coerce ordinal of disabled matching types to 0 */
246 dctx->mdord[mtype] = (md == NULL) ? 0 : ord;
247
248 return 1;
249}
250
251static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype)
252{
253 if (mtype > dane->dctx->mdmax)
254 return NULL;
255 return dane->dctx->mdevp[mtype];
256}
257
258static int dane_tlsa_add(SSL_DANE *dane,
259 uint8_t usage,
260 uint8_t selector,
261 uint8_t mtype, const unsigned char *data, size_t dlen)
262{
263 danetls_record *t;
264 const EVP_MD *md = NULL;
265 int ilen = (int)dlen;
266 int i;
267 int num;
268
269 if (dane->trecs == NULL) {
270 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_NOT_ENABLED);
271 return -1;
272 }
273
274 if (ilen < 0 || dlen != (size_t)ilen) {
275 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DATA_LENGTH);
276 return 0;
277 }
278
279 if (usage > DANETLS_USAGE_LAST) {
280 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE);
281 return 0;
282 }
283
284 if (selector > DANETLS_SELECTOR_LAST) {
285 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_SELECTOR);
286 return 0;
287 }
288
289 if (mtype != DANETLS_MATCHING_FULL) {
290 md = tlsa_md_get(dane, mtype);
291 if (md == NULL) {
292 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE);
293 return 0;
294 }
295 }
296
297 if (md != NULL && dlen != (size_t)EVP_MD_get_size(md)) {
298 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH);
299 return 0;
300 }
301 if (!data) {
302 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_NULL_DATA);
303 return 0;
304 }
305
306 if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL)
307 return -1;
308
309 t->usage = usage;
310 t->selector = selector;
311 t->mtype = mtype;
312 t->data = OPENSSL_malloc(dlen);
313 if (t->data == NULL) {
314 tlsa_free(t);
315 return -1;
316 }
317 memcpy(t->data, data, dlen);
318 t->dlen = dlen;
319
320 /* Validate and cache full certificate or public key */
321 if (mtype == DANETLS_MATCHING_FULL) {
322 const unsigned char *p = data;
323 X509 *cert = NULL;
324 EVP_PKEY *pkey = NULL;
325
326 switch (selector) {
327 case DANETLS_SELECTOR_CERT:
328 if (!d2i_X509(&cert, &p, ilen) || p < data ||
329 dlen != (size_t)(p - data)) {
330 X509_free(cert);
331 tlsa_free(t);
332 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
333 return 0;
334 }
335 if (X509_get0_pubkey(cert) == NULL) {
336 X509_free(cert);
337 tlsa_free(t);
338 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_CERTIFICATE);
339 return 0;
340 }
341
342 if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) {
343 /*
344 * The Full(0) certificate decodes to a seemingly valid X.509
345 * object with a plausible key, so the TLSA record is well
346 * formed. However, we don't actually need the certificate for
347 * usages PKIX-EE(1) or DANE-EE(3), because at least the EE
348 * certificate is always presented by the peer. We discard the
349 * certificate, and just use the TLSA data as an opaque blob
350 * for matching the raw presented DER octets.
351 *
352 * DO NOT FREE `t` here, it will be added to the TLSA record
353 * list below!
354 */
355 X509_free(cert);
356 break;
357 }
358
359 /*
360 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
361 * records that contain full certificates of trust-anchors that are
362 * not present in the wire chain. For usage PKIX-TA(0), we augment
363 * the chain with untrusted Full(0) certificates from DNS, in case
364 * they are missing from the chain.
365 */
366 if ((dane->certs == NULL &&
367 (dane->certs = sk_X509_new_null()) == NULL) ||
368 !sk_X509_push(dane->certs, cert)) {
369 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
370 X509_free(cert);
371 tlsa_free(t);
372 return -1;
373 }
374 break;
375
376 case DANETLS_SELECTOR_SPKI:
377 if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data ||
378 dlen != (size_t)(p - data)) {
379 EVP_PKEY_free(pkey);
380 tlsa_free(t);
381 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY);
382 return 0;
383 }
384
385 /*
386 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
387 * records that contain full bare keys of trust-anchors that are
388 * not present in the wire chain.
389 */
390 if (usage == DANETLS_USAGE_DANE_TA)
391 t->spki = pkey;
392 else
393 EVP_PKEY_free(pkey);
394 break;
395 }
396 }
397
398 /*-
399 * Find the right insertion point for the new record.
400 *
401 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
402 * they can be processed first, as they require no chain building, and no
403 * expiration or hostname checks. Because DANE-EE(3) is numerically
404 * largest, this is accomplished via descending sort by "usage".
405 *
406 * We also sort in descending order by matching ordinal to simplify
407 * the implementation of digest agility in the verification code.
408 *
409 * The choice of order for the selector is not significant, so we
410 * use the same descending order for consistency.
411 */
412 num = sk_danetls_record_num(dane->trecs);
413 for (i = 0; i < num; ++i) {
414 danetls_record *rec = sk_danetls_record_value(dane->trecs, i);
415
416 if (rec->usage > usage)
417 continue;
418 if (rec->usage < usage)
419 break;
420 if (rec->selector > selector)
421 continue;
422 if (rec->selector < selector)
423 break;
424 if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype])
425 continue;
426 break;
427 }
428
429 if (!sk_danetls_record_insert(dane->trecs, t, i)) {
430 tlsa_free(t);
431 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
432 return -1;
433 }
434 dane->umask |= DANETLS_USAGE_BIT(usage);
435
436 return 1;
437}
438
439/*
440 * Return 0 if there is only one version configured and it was disabled
441 * at configure time. Return 1 otherwise.
442 */
443static int ssl_check_allowed_versions(int min_version, int max_version)
444{
445 int minisdtls = 0, maxisdtls = 0;
446
447 /* Figure out if we're doing DTLS versions or TLS versions */
448 if (min_version == DTLS1_BAD_VER
449 || min_version >> 8 == DTLS1_VERSION_MAJOR)
450 minisdtls = 1;
451 if (max_version == DTLS1_BAD_VER
452 || max_version >> 8 == DTLS1_VERSION_MAJOR)
453 maxisdtls = 1;
454 /* A wildcard version of 0 could be DTLS or TLS. */
455 if ((minisdtls && !maxisdtls && max_version != 0)
456 || (maxisdtls && !minisdtls && min_version != 0)) {
457 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
458 return 0;
459 }
460
461 if (minisdtls || maxisdtls) {
462 /* Do DTLS version checks. */
463 if (min_version == 0)
464 /* Ignore DTLS1_BAD_VER */
465 min_version = DTLS1_VERSION;
466 if (max_version == 0)
467 max_version = DTLS1_2_VERSION;
468#ifdef OPENSSL_NO_DTLS1_2
469 if (max_version == DTLS1_2_VERSION)
470 max_version = DTLS1_VERSION;
471#endif
472#ifdef OPENSSL_NO_DTLS1
473 if (min_version == DTLS1_VERSION)
474 min_version = DTLS1_2_VERSION;
475#endif
476 /* Done massaging versions; do the check. */
477 if (0
478#ifdef OPENSSL_NO_DTLS1
479 || (DTLS_VERSION_GE(min_version, DTLS1_VERSION)
480 && DTLS_VERSION_GE(DTLS1_VERSION, max_version))
481#endif
482#ifdef OPENSSL_NO_DTLS1_2
483 || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION)
484 && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version))
485#endif
486 )
487 return 0;
488 } else {
489 /* Regular TLS version checks. */
490 if (min_version == 0)
491 min_version = SSL3_VERSION;
492 if (max_version == 0)
493 max_version = TLS1_3_VERSION;
494#ifdef OPENSSL_NO_TLS1_3
495 if (max_version == TLS1_3_VERSION)
496 max_version = TLS1_2_VERSION;
497#endif
498#ifdef OPENSSL_NO_TLS1_2
499 if (max_version == TLS1_2_VERSION)
500 max_version = TLS1_1_VERSION;
501#endif
502#ifdef OPENSSL_NO_TLS1_1
503 if (max_version == TLS1_1_VERSION)
504 max_version = TLS1_VERSION;
505#endif
506#ifdef OPENSSL_NO_TLS1
507 if (max_version == TLS1_VERSION)
508 max_version = SSL3_VERSION;
509#endif
510#ifdef OPENSSL_NO_SSL3
511 if (min_version == SSL3_VERSION)
512 min_version = TLS1_VERSION;
513#endif
514#ifdef OPENSSL_NO_TLS1
515 if (min_version == TLS1_VERSION)
516 min_version = TLS1_1_VERSION;
517#endif
518#ifdef OPENSSL_NO_TLS1_1
519 if (min_version == TLS1_1_VERSION)
520 min_version = TLS1_2_VERSION;
521#endif
522#ifdef OPENSSL_NO_TLS1_2
523 if (min_version == TLS1_2_VERSION)
524 min_version = TLS1_3_VERSION;
525#endif
526 /* Done massaging versions; do the check. */
527 if (0
528#ifdef OPENSSL_NO_SSL3
529 || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version)
530#endif
531#ifdef OPENSSL_NO_TLS1
532 || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version)
533#endif
534#ifdef OPENSSL_NO_TLS1_1
535 || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version)
536#endif
537#ifdef OPENSSL_NO_TLS1_2
538 || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version)
539#endif
540#ifdef OPENSSL_NO_TLS1_3
541 || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version)
542#endif
543 )
544 return 0;
545 }
546 return 1;
547}
548
549#if defined(__TANDEM) && defined(OPENSSL_VPROC)
550/*
551 * Define a VPROC function for HP NonStop build ssl library.
552 * This is used by platform version identification tools.
553 * Do not inline this procedure or make it static.
554 */
555# define OPENSSL_VPROC_STRING_(x) x##_SSL
556# define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
557# define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
558void OPENSSL_VPROC_FUNC(void) {}
559#endif
560
561int SSL_clear(SSL *s)
562{
563 if (s->method == NULL) {
564 ERR_raise(ERR_LIB_SSL, SSL_R_NO_METHOD_SPECIFIED);
565 return 0;
566 }
567
568 return s->method->ssl_reset(s);
569}
570
571int ossl_ssl_connection_reset(SSL *s)
572{
573 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
574
575 if (sc == NULL)
576 return 0;
577
578 if (ssl_clear_bad_session(sc)) {
579 SSL_SESSION_free(sc->session);
580 sc->session = NULL;
581 }
582 SSL_SESSION_free(sc->psksession);
583 sc->psksession = NULL;
584 OPENSSL_free(sc->psksession_id);
585 sc->psksession_id = NULL;
586 sc->psksession_id_len = 0;
587 sc->hello_retry_request = SSL_HRR_NONE;
588 sc->sent_tickets = 0;
589
590 sc->error = 0;
591 sc->hit = 0;
592 sc->shutdown = 0;
593
594 if (sc->renegotiate) {
595 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
596 return 0;
597 }
598
599 ossl_statem_clear(sc);
600
601 sc->version = s->method->version;
602 sc->client_version = sc->version;
603 sc->rwstate = SSL_NOTHING;
604
605 BUF_MEM_free(sc->init_buf);
606 sc->init_buf = NULL;
607 sc->first_packet = 0;
608
609 sc->key_update = SSL_KEY_UPDATE_NONE;
610 memset(sc->ext.compress_certificate_from_peer, 0,
611 sizeof(sc->ext.compress_certificate_from_peer));
612 sc->ext.compress_certificate_sent = 0;
613
614 EVP_MD_CTX_free(sc->pha_dgst);
615 sc->pha_dgst = NULL;
616
617 /* Reset DANE verification result state */
618 sc->dane.mdpth = -1;
619 sc->dane.pdpth = -1;
620 X509_free(sc->dane.mcert);
621 sc->dane.mcert = NULL;
622 sc->dane.mtlsa = NULL;
623
624 /* Clear the verification result peername */
625 X509_VERIFY_PARAM_move_peername(sc->param, NULL);
626
627 /* Clear any shared connection state */
628 OPENSSL_free(sc->shared_sigalgs);
629 sc->shared_sigalgs = NULL;
630 sc->shared_sigalgslen = 0;
631
632 /*
633 * Check to see if we were changed into a different method, if so, revert
634 * back.
635 */
636 if (s->method != s->defltmeth) {
637 s->method->ssl_deinit(s);
638 s->method = s->defltmeth;
639 if (!s->method->ssl_init(s))
640 return 0;
641 } else {
642 if (!s->method->ssl_clear(s))
643 return 0;
644 }
645
646 if (!RECORD_LAYER_reset(&sc->rlayer))
647 return 0;
648
649 return 1;
650}
651
652#ifndef OPENSSL_NO_DEPRECATED_3_0
653/** Used to change an SSL_CTXs default SSL method type */
654int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
655{
656 STACK_OF(SSL_CIPHER) *sk;
657
658 if (IS_QUIC_CTX(ctx)) {
659 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
660 return 0;
661 }
662
663 ctx->method = meth;
664
665 if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) {
666 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
667 return 0;
668 }
669 sk = ssl_create_cipher_list(ctx,
670 ctx->tls13_ciphersuites,
671 &(ctx->cipher_list),
672 &(ctx->cipher_list_by_id),
673 OSSL_default_cipher_list(), ctx->cert);
674 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
675 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
676 return 0;
677 }
678 return 1;
679}
680#endif
681
682SSL *SSL_new(SSL_CTX *ctx)
683{
684 if (ctx == NULL) {
685 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_CTX);
686 return NULL;
687 }
688 if (ctx->method == NULL) {
689 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
690 return NULL;
691 }
692 return ctx->method->ssl_new(ctx);
693}
694
695int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, int type)
696{
697 ssl->type = type;
698
699 ssl->lock = CRYPTO_THREAD_lock_new();
700 if (ssl->lock == NULL)
701 return 0;
702
703 if (!CRYPTO_NEW_REF(&ssl->references, 1)) {
704 CRYPTO_THREAD_lock_free(ssl->lock);
705 return 0;
706 }
707
708 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, ssl, &ssl->ex_data)) {
709 CRYPTO_THREAD_lock_free(ssl->lock);
710 CRYPTO_FREE_REF(&ssl->references);
711 ssl->lock = NULL;
712 return 0;
713 }
714
715 SSL_CTX_up_ref(ctx);
716 ssl->ctx = ctx;
717
718 ssl->defltmeth = ssl->method = method;
719
720 return 1;
721}
722
723SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method)
724{
725 SSL_CONNECTION *s;
726 SSL *ssl;
727
728 s = OPENSSL_zalloc(sizeof(*s));
729 if (s == NULL)
730 return NULL;
731
732 ssl = &s->ssl;
733 if (!ossl_ssl_init(ssl, ctx, method, SSL_TYPE_SSL_CONNECTION)) {
734 OPENSSL_free(s);
735 s = NULL;
736 ssl = NULL;
737 goto sslerr;
738 }
739
740 RECORD_LAYER_init(&s->rlayer, s);
741
742 s->options = ctx->options;
743
744 s->dane.flags = ctx->dane.flags;
745 if (method->version == ctx->method->version) {
746 s->min_proto_version = ctx->min_proto_version;
747 s->max_proto_version = ctx->max_proto_version;
748 }
749
750 s->mode = ctx->mode;
751 s->max_cert_list = ctx->max_cert_list;
752 s->max_early_data = ctx->max_early_data;
753 s->recv_max_early_data = ctx->recv_max_early_data;
754
755 s->num_tickets = ctx->num_tickets;
756 s->pha_enabled = ctx->pha_enabled;
757
758 /* Shallow copy of the ciphersuites stack */
759 s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);
760 if (s->tls13_ciphersuites == NULL)
761 goto cerr;
762
763 /*
764 * Earlier library versions used to copy the pointer to the CERT, not
765 * its contents; only when setting new parameters for the per-SSL
766 * copy, ssl_cert_new would be called (and the direct reference to
767 * the per-SSL_CTX settings would be lost, but those still were
768 * indirectly accessed for various purposes, and for that reason they
769 * used to be known as s->ctx->default_cert). Now we don't look at the
770 * SSL_CTX's CERT after having duplicated it once.
771 */
772 s->cert = ssl_cert_dup(ctx->cert);
773 if (s->cert == NULL)
774 goto sslerr;
775
776 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
777 s->msg_callback = ctx->msg_callback;
778 s->msg_callback_arg = ctx->msg_callback_arg;
779 s->verify_mode = ctx->verify_mode;
780 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
781 s->rlayer.record_padding_cb = ctx->record_padding_cb;
782 s->rlayer.record_padding_arg = ctx->record_padding_arg;
783 s->rlayer.block_padding = ctx->block_padding;
784 s->sid_ctx_length = ctx->sid_ctx_length;
785 if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))
786 goto err;
787 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
788 s->verify_callback = ctx->default_verify_callback;
789 s->generate_session_id = ctx->generate_session_id;
790
791 s->param = X509_VERIFY_PARAM_new();
792 if (s->param == NULL)
793 goto asn1err;
794 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
795 s->quiet_shutdown = IS_QUIC_CTX(ctx) ? 0 : ctx->quiet_shutdown;
796
797 if (!IS_QUIC_CTX(ctx))
798 s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;
799
800 s->max_send_fragment = ctx->max_send_fragment;
801 s->split_send_fragment = ctx->split_send_fragment;
802 s->max_pipelines = ctx->max_pipelines;
803 s->rlayer.default_read_buf_len = ctx->default_read_buf_len;
804
805 s->ext.debug_cb = 0;
806 s->ext.debug_arg = NULL;
807 s->ext.ticket_expected = 0;
808 s->ext.status_type = ctx->ext.status_type;
809 s->ext.status_expected = 0;
810 s->ext.ocsp.ids = NULL;
811 s->ext.ocsp.exts = NULL;
812 s->ext.ocsp.resp = NULL;
813 s->ext.ocsp.resp_len = 0;
814 SSL_CTX_up_ref(ctx);
815 s->session_ctx = ctx;
816 if (ctx->ext.ecpointformats) {
817 s->ext.ecpointformats =
818 OPENSSL_memdup(ctx->ext.ecpointformats,
819 ctx->ext.ecpointformats_len);
820 if (!s->ext.ecpointformats) {
821 s->ext.ecpointformats_len = 0;
822 goto err;
823 }
824 s->ext.ecpointformats_len =
825 ctx->ext.ecpointformats_len;
826 }
827 if (ctx->ext.supportedgroups) {
828 s->ext.supportedgroups =
829 OPENSSL_memdup(ctx->ext.supportedgroups,
830 ctx->ext.supportedgroups_len
831 * sizeof(*ctx->ext.supportedgroups));
832 if (!s->ext.supportedgroups) {
833 s->ext.supportedgroups_len = 0;
834 goto err;
835 }
836 s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;
837 }
838
839#ifndef OPENSSL_NO_NEXTPROTONEG
840 s->ext.npn = NULL;
841#endif
842
843 if (ctx->ext.alpn != NULL) {
844 s->ext.alpn = OPENSSL_malloc(ctx->ext.alpn_len);
845 if (s->ext.alpn == NULL) {
846 s->ext.alpn_len = 0;
847 goto err;
848 }
849 memcpy(s->ext.alpn, ctx->ext.alpn, ctx->ext.alpn_len);
850 s->ext.alpn_len = ctx->ext.alpn_len;
851 }
852
853 s->verified_chain = NULL;
854 s->verify_result = X509_V_OK;
855
856 s->default_passwd_callback = ctx->default_passwd_callback;
857 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
858
859 s->key_update = SSL_KEY_UPDATE_NONE;
860
861 if (!IS_QUIC_CTX(ctx)) {
862 s->allow_early_data_cb = ctx->allow_early_data_cb;
863 s->allow_early_data_cb_data = ctx->allow_early_data_cb_data;
864 }
865
866 if (!method->ssl_init(ssl))
867 goto sslerr;
868
869 s->server = (method->ssl_accept == ssl_undefined_function) ? 0 : 1;
870
871 if (!method->ssl_reset(ssl))
872 goto sslerr;
873
874#ifndef OPENSSL_NO_PSK
875 s->psk_client_callback = ctx->psk_client_callback;
876 s->psk_server_callback = ctx->psk_server_callback;
877#endif
878 s->psk_find_session_cb = ctx->psk_find_session_cb;
879 s->psk_use_session_cb = ctx->psk_use_session_cb;
880
881 s->async_cb = ctx->async_cb;
882 s->async_cb_arg = ctx->async_cb_arg;
883
884 s->job = NULL;
885
886#ifndef OPENSSL_NO_COMP_ALG
887 memcpy(s->cert_comp_prefs, ctx->cert_comp_prefs, sizeof(s->cert_comp_prefs));
888#endif
889 if (ctx->client_cert_type != NULL) {
890 s->client_cert_type = OPENSSL_memdup(ctx->client_cert_type,
891 ctx->client_cert_type_len);
892 if (s->client_cert_type == NULL)
893 goto sslerr;
894 s->client_cert_type_len = ctx->client_cert_type_len;
895 }
896 if (ctx->server_cert_type != NULL) {
897 s->server_cert_type = OPENSSL_memdup(ctx->server_cert_type,
898 ctx->server_cert_type_len);
899 if (s->server_cert_type == NULL)
900 goto sslerr;
901 s->server_cert_type_len = ctx->server_cert_type_len;
902 }
903
904#ifndef OPENSSL_NO_CT
905 if (!SSL_set_ct_validation_callback(ssl, ctx->ct_validation_callback,
906 ctx->ct_validation_callback_arg))
907 goto sslerr;
908#endif
909
910 s->ssl_pkey_num = SSL_PKEY_NUM + ctx->sigalg_list_len;
911 return ssl;
912 cerr:
913 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
914 goto err;
915 asn1err:
916 ERR_raise(ERR_LIB_SSL, ERR_R_ASN1_LIB);
917 goto err;
918 sslerr:
919 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
920 err:
921 SSL_free(ssl);
922 return NULL;
923}
924
925SSL *ossl_ssl_connection_new(SSL_CTX *ctx)
926{
927 return ossl_ssl_connection_new_int(ctx, ctx->method);
928}
929
930int SSL_is_dtls(const SSL *s)
931{
932 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
933
934#ifndef OPENSSL_NO_QUIC
935 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
936 return 0;
937#endif
938
939 if (sc == NULL)
940 return 0;
941
942 return SSL_CONNECTION_IS_DTLS(sc) ? 1 : 0;
943}
944
945int SSL_is_tls(const SSL *s)
946{
947 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
948
949#ifndef OPENSSL_NO_QUIC
950 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
951 return 0;
952#endif
953
954 if (sc == NULL)
955 return 0;
956
957 return SSL_CONNECTION_IS_DTLS(sc) ? 0 : 1;
958}
959
960int SSL_is_quic(const SSL *s)
961{
962#ifndef OPENSSL_NO_QUIC
963 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
964 return 1;
965#endif
966 return 0;
967}
968
969int SSL_up_ref(SSL *s)
970{
971 int i;
972
973 if (CRYPTO_UP_REF(&s->references, &i) <= 0)
974 return 0;
975
976 REF_PRINT_COUNT("SSL", s);
977 REF_ASSERT_ISNT(i < 2);
978 return ((i > 1) ? 1 : 0);
979}
980
981int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
982 unsigned int sid_ctx_len)
983{
984 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
985 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
986 return 0;
987 }
988 ctx->sid_ctx_length = sid_ctx_len;
989 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
990
991 return 1;
992}
993
994int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
995 unsigned int sid_ctx_len)
996{
997 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
998
999 if (sc == NULL)
1000 return 0;
1001
1002 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
1003 ERR_raise(ERR_LIB_SSL, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
1004 return 0;
1005 }
1006 sc->sid_ctx_length = sid_ctx_len;
1007 memcpy(sc->sid_ctx, sid_ctx, sid_ctx_len);
1008
1009 return 1;
1010}
1011
1012int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
1013{
1014 if (!CRYPTO_THREAD_write_lock(ctx->lock))
1015 return 0;
1016 ctx->generate_session_id = cb;
1017 CRYPTO_THREAD_unlock(ctx->lock);
1018 return 1;
1019}
1020
1021int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
1022{
1023 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1024
1025 if (sc == NULL || !CRYPTO_THREAD_write_lock(ssl->lock))
1026 return 0;
1027 sc->generate_session_id = cb;
1028 CRYPTO_THREAD_unlock(ssl->lock);
1029 return 1;
1030}
1031
1032int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1033 unsigned int id_len)
1034{
1035 /*
1036 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1037 * we can "construct" a session to give us the desired check - i.e. to
1038 * find if there's a session in the hash table that would conflict with
1039 * any new session built out of this id/id_len and the ssl_version in use
1040 * by this SSL.
1041 */
1042 SSL_SESSION r, *p;
1043 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
1044
1045 if (sc == NULL || id_len > sizeof(r.session_id))
1046 return 0;
1047
1048 r.ssl_version = sc->version;
1049 r.session_id_length = id_len;
1050 memcpy(r.session_id, id, id_len);
1051
1052 if (!CRYPTO_THREAD_read_lock(sc->session_ctx->lock))
1053 return 0;
1054 p = lh_SSL_SESSION_retrieve(sc->session_ctx->sessions, &r);
1055 CRYPTO_THREAD_unlock(sc->session_ctx->lock);
1056 return (p != NULL);
1057}
1058
1059int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
1060{
1061 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
1062}
1063
1064int SSL_set_purpose(SSL *s, int purpose)
1065{
1066 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1067
1068 if (sc == NULL)
1069 return 0;
1070
1071 return X509_VERIFY_PARAM_set_purpose(sc->param, purpose);
1072}
1073
1074int SSL_CTX_set_trust(SSL_CTX *s, int trust)
1075{
1076 return X509_VERIFY_PARAM_set_trust(s->param, trust);
1077}
1078
1079int SSL_set_trust(SSL *s, int trust)
1080{
1081 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1082
1083 if (sc == NULL)
1084 return 0;
1085
1086 return X509_VERIFY_PARAM_set_trust(sc->param, trust);
1087}
1088
1089int SSL_set1_host(SSL *s, const char *hostname)
1090{
1091 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1092
1093 if (sc == NULL)
1094 return 0;
1095
1096 /* If a hostname is provided and parses as an IP address,
1097 * treat it as such. */
1098 if (hostname != NULL
1099 && X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname) == 1)
1100 return 1;
1101
1102 return X509_VERIFY_PARAM_set1_host(sc->param, hostname, 0);
1103}
1104
1105int SSL_add1_host(SSL *s, const char *hostname)
1106{
1107 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1108
1109 if (sc == NULL)
1110 return 0;
1111
1112 /* If a hostname is provided and parses as an IP address,
1113 * treat it as such. */
1114 if (hostname)
1115 {
1116 ASN1_OCTET_STRING *ip;
1117 char *old_ip;
1118
1119 ip = a2i_IPADDRESS(hostname);
1120 if (ip) {
1121 /* We didn't want it; only to check if it *is* an IP address */
1122 ASN1_OCTET_STRING_free(ip);
1123
1124 old_ip = X509_VERIFY_PARAM_get1_ip_asc(sc->param);
1125 if (old_ip)
1126 {
1127 OPENSSL_free(old_ip);
1128 /* There can be only one IP address */
1129 return 0;
1130 }
1131
1132 return X509_VERIFY_PARAM_set1_ip_asc(sc->param, hostname);
1133 }
1134 }
1135
1136 return X509_VERIFY_PARAM_add1_host(sc->param, hostname, 0);
1137}
1138
1139void SSL_set_hostflags(SSL *s, unsigned int flags)
1140{
1141 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1142
1143 if (sc == NULL)
1144 return;
1145
1146 X509_VERIFY_PARAM_set_hostflags(sc->param, flags);
1147}
1148
1149const char *SSL_get0_peername(SSL *s)
1150{
1151 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1152
1153 if (sc == NULL)
1154 return NULL;
1155
1156 return X509_VERIFY_PARAM_get0_peername(sc->param);
1157}
1158
1159int SSL_CTX_dane_enable(SSL_CTX *ctx)
1160{
1161 return dane_ctx_enable(&ctx->dane);
1162}
1163
1164unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags)
1165{
1166 unsigned long orig = ctx->dane.flags;
1167
1168 ctx->dane.flags |= flags;
1169 return orig;
1170}
1171
1172unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags)
1173{
1174 unsigned long orig = ctx->dane.flags;
1175
1176 ctx->dane.flags &= ~flags;
1177 return orig;
1178}
1179
1180int SSL_dane_enable(SSL *s, const char *basedomain)
1181{
1182 SSL_DANE *dane;
1183 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1184
1185 if (sc == NULL)
1186 return 0;
1187
1188 dane = &sc->dane;
1189 if (s->ctx->dane.mdmax == 0) {
1190 ERR_raise(ERR_LIB_SSL, SSL_R_CONTEXT_NOT_DANE_ENABLED);
1191 return 0;
1192 }
1193 if (dane->trecs != NULL) {
1194 ERR_raise(ERR_LIB_SSL, SSL_R_DANE_ALREADY_ENABLED);
1195 return 0;
1196 }
1197
1198 /*
1199 * Default SNI name. This rejects empty names, while set1_host below
1200 * accepts them and disables hostname checks. To avoid side-effects with
1201 * invalid input, set the SNI name first.
1202 */
1203 if (sc->ext.hostname == NULL) {
1204 if (!SSL_set_tlsext_host_name(s, basedomain)) {
1205 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1206 return -1;
1207 }
1208 }
1209
1210 /* Primary RFC6125 reference identifier */
1211 if (!X509_VERIFY_PARAM_set1_host(sc->param, basedomain, 0)) {
1212 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN);
1213 return -1;
1214 }
1215
1216 dane->mdpth = -1;
1217 dane->pdpth = -1;
1218 dane->dctx = &s->ctx->dane;
1219 dane->trecs = sk_danetls_record_new_null();
1220
1221 if (dane->trecs == NULL) {
1222 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
1223 return -1;
1224 }
1225 return 1;
1226}
1227
1228unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags)
1229{
1230 unsigned long orig;
1231 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1232
1233 if (sc == NULL)
1234 return 0;
1235
1236 orig = sc->dane.flags;
1237
1238 sc->dane.flags |= flags;
1239 return orig;
1240}
1241
1242unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags)
1243{
1244 unsigned long orig;
1245 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1246
1247 if (sc == NULL)
1248 return 0;
1249
1250 orig = sc->dane.flags;
1251
1252 sc->dane.flags &= ~flags;
1253 return orig;
1254}
1255
1256int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki)
1257{
1258 SSL_DANE *dane;
1259 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1260
1261 if (sc == NULL)
1262 return -1;
1263
1264 dane = &sc->dane;
1265
1266 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1267 return -1;
1268 if (dane->mtlsa) {
1269 if (mcert)
1270 *mcert = dane->mcert;
1271 if (mspki)
1272 *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL;
1273 }
1274 return dane->mdpth;
1275}
1276
1277int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1278 uint8_t *mtype, const unsigned char **data, size_t *dlen)
1279{
1280 SSL_DANE *dane;
1281 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1282
1283 if (sc == NULL)
1284 return -1;
1285
1286 dane = &sc->dane;
1287
1288 if (!DANETLS_ENABLED(dane) || sc->verify_result != X509_V_OK)
1289 return -1;
1290 if (dane->mtlsa) {
1291 if (usage)
1292 *usage = dane->mtlsa->usage;
1293 if (selector)
1294 *selector = dane->mtlsa->selector;
1295 if (mtype)
1296 *mtype = dane->mtlsa->mtype;
1297 if (data)
1298 *data = dane->mtlsa->data;
1299 if (dlen)
1300 *dlen = dane->mtlsa->dlen;
1301 }
1302 return dane->mdpth;
1303}
1304
1305SSL_DANE *SSL_get0_dane(SSL *s)
1306{
1307 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1308
1309 if (sc == NULL)
1310 return NULL;
1311
1312 return &sc->dane;
1313}
1314
1315int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1316 uint8_t mtype, const unsigned char *data, size_t dlen)
1317{
1318 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1319
1320 if (sc == NULL)
1321 return 0;
1322
1323 return dane_tlsa_add(&sc->dane, usage, selector, mtype, data, dlen);
1324}
1325
1326int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype,
1327 uint8_t ord)
1328{
1329 return dane_mtype_set(&ctx->dane, md, mtype, ord);
1330}
1331
1332int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
1333{
1334 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
1335}
1336
1337int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
1338{
1339 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1340
1341 if (sc == NULL)
1342 return 0;
1343
1344 return X509_VERIFY_PARAM_set1(sc->param, vpm);
1345}
1346
1347X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
1348{
1349 return ctx->param;
1350}
1351
1352X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
1353{
1354 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1355
1356 if (sc == NULL)
1357 return NULL;
1358
1359 return sc->param;
1360}
1361
1362void SSL_certs_clear(SSL *s)
1363{
1364 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1365
1366 if (sc == NULL)
1367 return;
1368
1369 ssl_cert_clear_certs(sc->cert);
1370}
1371
1372void SSL_free(SSL *s)
1373{
1374 int i;
1375
1376 if (s == NULL)
1377 return;
1378 CRYPTO_DOWN_REF(&s->references, &i);
1379 REF_PRINT_COUNT("SSL", s);
1380 if (i > 0)
1381 return;
1382 REF_ASSERT_ISNT(i < 0);
1383
1384 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
1385
1386 if (s->method != NULL)
1387 s->method->ssl_free(s);
1388
1389 SSL_CTX_free(s->ctx);
1390 CRYPTO_THREAD_lock_free(s->lock);
1391 CRYPTO_FREE_REF(&s->references);
1392
1393 OPENSSL_free(s);
1394}
1395
1396void ossl_ssl_connection_free(SSL *ssl)
1397{
1398 SSL_CONNECTION *s;
1399
1400 s = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
1401 if (s == NULL)
1402 return;
1403
1404 X509_VERIFY_PARAM_free(s->param);
1405 dane_final(&s->dane);
1406
1407 /* Ignore return value */
1408 ssl_free_wbio_buffer(s);
1409
1410 /* Ignore return value */
1411 RECORD_LAYER_clear(&s->rlayer);
1412
1413 BUF_MEM_free(s->init_buf);
1414
1415 /* add extra stuff */
1416 sk_SSL_CIPHER_free(s->cipher_list);
1417 sk_SSL_CIPHER_free(s->cipher_list_by_id);
1418 sk_SSL_CIPHER_free(s->tls13_ciphersuites);
1419 sk_SSL_CIPHER_free(s->peer_ciphers);
1420
1421 /* Make the next call work :-) */
1422 if (s->session != NULL) {
1423 ssl_clear_bad_session(s);
1424 SSL_SESSION_free(s->session);
1425 }
1426 SSL_SESSION_free(s->psksession);
1427 OPENSSL_free(s->psksession_id);
1428
1429 ssl_cert_free(s->cert);
1430 OPENSSL_free(s->shared_sigalgs);
1431 /* Free up if allocated */
1432
1433 OPENSSL_free(s->ext.hostname);
1434 SSL_CTX_free(s->session_ctx);
1435 OPENSSL_free(s->ext.ecpointformats);
1436 OPENSSL_free(s->ext.peer_ecpointformats);
1437 OPENSSL_free(s->ext.supportedgroups);
1438 OPENSSL_free(s->ext.peer_supportedgroups);
1439 sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);
1440#ifndef OPENSSL_NO_OCSP
1441 sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);
1442#endif
1443#ifndef OPENSSL_NO_CT
1444 SCT_LIST_free(s->scts);
1445 OPENSSL_free(s->ext.scts);
1446#endif
1447 OPENSSL_free(s->ext.ocsp.resp);
1448 OPENSSL_free(s->ext.alpn);
1449 OPENSSL_free(s->ext.tls13_cookie);
1450 if (s->clienthello != NULL)
1451 OPENSSL_free(s->clienthello->pre_proc_exts);
1452 OPENSSL_free(s->clienthello);
1453 OPENSSL_free(s->pha_context);
1454 EVP_MD_CTX_free(s->pha_dgst);
1455
1456 sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);
1457 sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);
1458
1459 OPENSSL_free(s->client_cert_type);
1460 OPENSSL_free(s->server_cert_type);
1461
1462 OSSL_STACK_OF_X509_free(s->verified_chain);
1463
1464 if (ssl->method != NULL)
1465 ssl->method->ssl_deinit(ssl);
1466
1467 ASYNC_WAIT_CTX_free(s->waitctx);
1468
1469#if !defined(OPENSSL_NO_NEXTPROTONEG)
1470 OPENSSL_free(s->ext.npn);
1471#endif
1472
1473#ifndef OPENSSL_NO_SRTP
1474 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
1475#endif
1476
1477 /*
1478 * We do this late. We want to ensure that any other references we held to
1479 * these BIOs are freed first *before* we call BIO_free_all(), because
1480 * BIO_free_all() will only free each BIO in the chain if the number of
1481 * references to the first BIO have dropped to 0
1482 */
1483 BIO_free_all(s->wbio);
1484 s->wbio = NULL;
1485 BIO_free_all(s->rbio);
1486 s->rbio = NULL;
1487 OPENSSL_free(s->s3.tmp.valid_flags);
1488}
1489
1490void SSL_set0_rbio(SSL *s, BIO *rbio)
1491{
1492 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1493
1494#ifndef OPENSSL_NO_QUIC
1495 if (IS_QUIC(s)) {
1496 ossl_quic_conn_set0_net_rbio(s, rbio);
1497 return;
1498 }
1499#endif
1500
1501 if (sc == NULL)
1502 return;
1503
1504 BIO_free_all(sc->rbio);
1505 sc->rbio = rbio;
1506 sc->rlayer.rrlmethod->set1_bio(sc->rlayer.rrl, sc->rbio);
1507}
1508
1509void SSL_set0_wbio(SSL *s, BIO *wbio)
1510{
1511 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1512
1513#ifndef OPENSSL_NO_QUIC
1514 if (IS_QUIC(s)) {
1515 ossl_quic_conn_set0_net_wbio(s, wbio);
1516 return;
1517 }
1518#endif
1519
1520 if (sc == NULL)
1521 return;
1522
1523 /*
1524 * If the output buffering BIO is still in place, remove it
1525 */
1526 if (sc->bbio != NULL)
1527 sc->wbio = BIO_pop(sc->wbio);
1528
1529 BIO_free_all(sc->wbio);
1530 sc->wbio = wbio;
1531
1532 /* Re-attach |bbio| to the new |wbio|. */
1533 if (sc->bbio != NULL)
1534 sc->wbio = BIO_push(sc->bbio, sc->wbio);
1535
1536 sc->rlayer.wrlmethod->set1_bio(sc->rlayer.wrl, sc->wbio);
1537}
1538
1539void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
1540{
1541 /*
1542 * For historical reasons, this function has many different cases in
1543 * ownership handling.
1544 */
1545
1546 /* If nothing has changed, do nothing */
1547 if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s))
1548 return;
1549
1550 /*
1551 * If the two arguments are equal then one fewer reference is granted by the
1552 * caller than we want to take
1553 */
1554 if (rbio != NULL && rbio == wbio)
1555 BIO_up_ref(rbio);
1556
1557 /*
1558 * If only the wbio is changed only adopt one reference.
1559 */
1560 if (rbio == SSL_get_rbio(s)) {
1561 SSL_set0_wbio(s, wbio);
1562 return;
1563 }
1564 /*
1565 * There is an asymmetry here for historical reasons. If only the rbio is
1566 * changed AND the rbio and wbio were originally different, then we only
1567 * adopt one reference.
1568 */
1569 if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) {
1570 SSL_set0_rbio(s, rbio);
1571 return;
1572 }
1573
1574 /* Otherwise, adopt both references. */
1575 SSL_set0_rbio(s, rbio);
1576 SSL_set0_wbio(s, wbio);
1577}
1578
1579BIO *SSL_get_rbio(const SSL *s)
1580{
1581 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1582
1583#ifndef OPENSSL_NO_QUIC
1584 if (IS_QUIC(s))
1585 return ossl_quic_conn_get_net_rbio(s);
1586#endif
1587
1588 if (sc == NULL)
1589 return NULL;
1590
1591 return sc->rbio;
1592}
1593
1594BIO *SSL_get_wbio(const SSL *s)
1595{
1596 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1597
1598#ifndef OPENSSL_NO_QUIC
1599 if (IS_QUIC(s))
1600 return ossl_quic_conn_get_net_wbio(s);
1601#endif
1602
1603 if (sc == NULL)
1604 return NULL;
1605
1606 if (sc->bbio != NULL) {
1607 /*
1608 * If |bbio| is active, the true caller-configured BIO is its
1609 * |next_bio|.
1610 */
1611 return BIO_next(sc->bbio);
1612 }
1613 return sc->wbio;
1614}
1615
1616int SSL_get_fd(const SSL *s)
1617{
1618 return SSL_get_rfd(s);
1619}
1620
1621int SSL_get_rfd(const SSL *s)
1622{
1623 int ret = -1;
1624 BIO *b, *r;
1625
1626 b = SSL_get_rbio(s);
1627 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1628 if (r != NULL)
1629 BIO_get_fd(r, &ret);
1630 return ret;
1631}
1632
1633int SSL_get_wfd(const SSL *s)
1634{
1635 int ret = -1;
1636 BIO *b, *r;
1637
1638 b = SSL_get_wbio(s);
1639 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
1640 if (r != NULL)
1641 BIO_get_fd(r, &ret);
1642 return ret;
1643}
1644
1645#ifndef OPENSSL_NO_SOCK
1646static const BIO_METHOD *fd_method(SSL *s)
1647{
1648#ifndef OPENSSL_NO_DGRAM
1649 if (IS_QUIC(s))
1650 return BIO_s_datagram();
1651#endif
1652
1653 return BIO_s_socket();
1654}
1655
1656int SSL_set_fd(SSL *s, int fd)
1657{
1658 int ret = 0;
1659 BIO *bio = NULL;
1660
1661 if (s->type == SSL_TYPE_QUIC_XSO) {
1662 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1663 goto err;
1664 }
1665
1666 bio = BIO_new(fd_method(s));
1667
1668 if (bio == NULL) {
1669 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1670 goto err;
1671 }
1672 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1673 SSL_set_bio(s, bio, bio);
1674#ifndef OPENSSL_NO_KTLS
1675 /*
1676 * The new socket is created successfully regardless of ktls_enable.
1677 * ktls_enable doesn't change any functionality of the socket, except
1678 * changing the setsockopt to enable the processing of ktls_start.
1679 * Thus, it is not a problem to call it for non-TLS sockets.
1680 */
1681 ktls_enable(fd);
1682#endif /* OPENSSL_NO_KTLS */
1683 ret = 1;
1684 err:
1685 return ret;
1686}
1687
1688int SSL_set_wfd(SSL *s, int fd)
1689{
1690 BIO *rbio = SSL_get_rbio(s);
1691 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1692
1693 if (s->type == SSL_TYPE_QUIC_XSO) {
1694 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1695 return 0;
1696 }
1697
1698 if (rbio == NULL || BIO_method_type(rbio) != desired_type
1699 || (int)BIO_get_fd(rbio, NULL) != fd) {
1700 BIO *bio = BIO_new(fd_method(s));
1701
1702 if (bio == NULL) {
1703 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1704 return 0;
1705 }
1706 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1707 SSL_set0_wbio(s, bio);
1708#ifndef OPENSSL_NO_KTLS
1709 /*
1710 * The new socket is created successfully regardless of ktls_enable.
1711 * ktls_enable doesn't change any functionality of the socket, except
1712 * changing the setsockopt to enable the processing of ktls_start.
1713 * Thus, it is not a problem to call it for non-TLS sockets.
1714 */
1715 ktls_enable(fd);
1716#endif /* OPENSSL_NO_KTLS */
1717 } else {
1718 BIO_up_ref(rbio);
1719 SSL_set0_wbio(s, rbio);
1720 }
1721 return 1;
1722}
1723
1724int SSL_set_rfd(SSL *s, int fd)
1725{
1726 BIO *wbio = SSL_get_wbio(s);
1727 int desired_type = IS_QUIC(s) ? BIO_TYPE_DGRAM : BIO_TYPE_SOCKET;
1728
1729 if (s->type == SSL_TYPE_QUIC_XSO) {
1730 ERR_raise(ERR_LIB_SSL, SSL_R_CONN_USE_ONLY);
1731 return 0;
1732 }
1733
1734 if (wbio == NULL || BIO_method_type(wbio) != desired_type
1735 || ((int)BIO_get_fd(wbio, NULL) != fd)) {
1736 BIO *bio = BIO_new(fd_method(s));
1737
1738 if (bio == NULL) {
1739 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
1740 return 0;
1741 }
1742 BIO_set_fd(bio, fd, BIO_NOCLOSE);
1743 SSL_set0_rbio(s, bio);
1744 } else {
1745 BIO_up_ref(wbio);
1746 SSL_set0_rbio(s, wbio);
1747 }
1748
1749 return 1;
1750}
1751#endif
1752
1753/* return length of latest Finished message we sent, copy to 'buf' */
1754size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
1755{
1756 size_t ret = 0;
1757 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1758
1759 if (sc == NULL)
1760 return 0;
1761
1762 ret = sc->s3.tmp.finish_md_len;
1763 if (count > ret)
1764 count = ret;
1765 memcpy(buf, sc->s3.tmp.finish_md, count);
1766 return ret;
1767}
1768
1769/* return length of latest Finished message we expected, copy to 'buf' */
1770size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
1771{
1772 size_t ret = 0;
1773 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1774
1775 if (sc == NULL)
1776 return 0;
1777
1778 ret = sc->s3.tmp.peer_finish_md_len;
1779 if (count > ret)
1780 count = ret;
1781 memcpy(buf, sc->s3.tmp.peer_finish_md, count);
1782 return ret;
1783}
1784
1785int SSL_get_verify_mode(const SSL *s)
1786{
1787 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1788
1789 if (sc == NULL)
1790 return 0;
1791
1792 return sc->verify_mode;
1793}
1794
1795int SSL_get_verify_depth(const SSL *s)
1796{
1797 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1798
1799 if (sc == NULL)
1800 return 0;
1801
1802 return X509_VERIFY_PARAM_get_depth(sc->param);
1803}
1804
1805int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
1806 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1807
1808 if (sc == NULL)
1809 return NULL;
1810
1811 return sc->verify_callback;
1812}
1813
1814int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
1815{
1816 return ctx->verify_mode;
1817}
1818
1819int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
1820{
1821 return X509_VERIFY_PARAM_get_depth(ctx->param);
1822}
1823
1824int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
1825 return ctx->default_verify_callback;
1826}
1827
1828void SSL_set_verify(SSL *s, int mode,
1829 int (*callback) (int ok, X509_STORE_CTX *ctx))
1830{
1831 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1832
1833 if (sc == NULL)
1834 return;
1835
1836 sc->verify_mode = mode;
1837 if (callback != NULL)
1838 sc->verify_callback = callback;
1839}
1840
1841void SSL_set_verify_depth(SSL *s, int depth)
1842{
1843 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
1844
1845 if (sc == NULL)
1846 return;
1847
1848 X509_VERIFY_PARAM_set_depth(sc->param, depth);
1849}
1850
1851void SSL_set_read_ahead(SSL *s, int yes)
1852{
1853 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
1854 OSSL_PARAM options[2], *opts = options;
1855
1856 if (sc == NULL)
1857 return;
1858
1859 RECORD_LAYER_set_read_ahead(&sc->rlayer, yes);
1860
1861 *opts++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD,
1862 &sc->rlayer.read_ahead);
1863 *opts = OSSL_PARAM_construct_end();
1864
1865 /* Ignore return value */
1866 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
1867}
1868
1869int SSL_get_read_ahead(const SSL *s)
1870{
1871 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
1872
1873 if (sc == NULL)
1874 return 0;
1875
1876 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
1877}
1878
1879int SSL_pending(const SSL *s)
1880{
1881 size_t pending = s->method->ssl_pending(s);
1882
1883 /*
1884 * SSL_pending cannot work properly if read-ahead is enabled
1885 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1886 * impossible to fix since SSL_pending cannot report errors that may be
1887 * observed while scanning the new data. (Note that SSL_pending() is
1888 * often used as a boolean value, so we'd better not return -1.)
1889 *
1890 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1891 * we just return INT_MAX.
1892 */
1893 return pending < INT_MAX ? (int)pending : INT_MAX;
1894}
1895
1896int SSL_has_pending(const SSL *s)
1897{
1898 /*
1899 * Similar to SSL_pending() but returns a 1 to indicate that we have
1900 * processed or unprocessed data available or 0 otherwise (as opposed to the
1901 * number of bytes available). Unlike SSL_pending() this will take into
1902 * account read_ahead data. A 1 return simply indicates that we have data.
1903 * That data may not result in any application data, or we may fail to parse
1904 * the records for some reason.
1905 */
1906 const SSL_CONNECTION *sc;
1907
1908#ifndef OPENSSL_NO_QUIC
1909 if (IS_QUIC(s))
1910 return ossl_quic_has_pending(s);
1911#endif
1912
1913 sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1914
1915 /* Check buffered app data if any first */
1916 if (SSL_CONNECTION_IS_DTLS(sc)) {
1917 TLS_RECORD *rdata;
1918 pitem *item, *iter;
1919
1920 iter = pqueue_iterator(sc->rlayer.d->buffered_app_data);
1921 while ((item = pqueue_next(&iter)) != NULL) {
1922 rdata = item->data;
1923 if (rdata->length > 0)
1924 return 1;
1925 }
1926 }
1927
1928 if (RECORD_LAYER_processed_read_pending(&sc->rlayer))
1929 return 1;
1930
1931 return RECORD_LAYER_read_pending(&sc->rlayer);
1932}
1933
1934X509 *SSL_get1_peer_certificate(const SSL *s)
1935{
1936 X509 *r = SSL_get0_peer_certificate(s);
1937
1938 if (r != NULL)
1939 X509_up_ref(r);
1940
1941 return r;
1942}
1943
1944X509 *SSL_get0_peer_certificate(const SSL *s)
1945{
1946 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1947
1948 if (sc == NULL)
1949 return NULL;
1950
1951 if (sc->session == NULL)
1952 return NULL;
1953 else
1954 return sc->session->peer;
1955}
1956
1957STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
1958{
1959 STACK_OF(X509) *r;
1960 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
1961
1962 if (sc == NULL)
1963 return NULL;
1964
1965 if (sc->session == NULL)
1966 r = NULL;
1967 else
1968 r = sc->session->peer_chain;
1969
1970 /*
1971 * If we are a client, cert_chain includes the peer's own certificate; if
1972 * we are a server, it does not.
1973 */
1974
1975 return r;
1976}
1977
1978/*
1979 * Now in theory, since the calling process own 't' it should be safe to
1980 * modify. We need to be able to read f without being hassled
1981 */
1982int SSL_copy_session_id(SSL *t, const SSL *f)
1983{
1984 int i;
1985 /* TODO(QUIC FUTURE): Not allowed for QUIC currently. */
1986 SSL_CONNECTION *tsc = SSL_CONNECTION_FROM_SSL_ONLY(t);
1987 const SSL_CONNECTION *fsc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(f);
1988
1989 if (tsc == NULL || fsc == NULL)
1990 return 0;
1991
1992 /* Do we need to do SSL locking? */
1993 if (!SSL_set_session(t, SSL_get_session(f))) {
1994 return 0;
1995 }
1996
1997 /*
1998 * what if we are setup for one protocol version but want to talk another
1999 */
2000 if (t->method != f->method) {
2001 t->method->ssl_deinit(t);
2002 t->method = f->method;
2003 if (t->method->ssl_init(t) == 0)
2004 return 0;
2005 }
2006
2007 CRYPTO_UP_REF(&fsc->cert->references, &i);
2008 ssl_cert_free(tsc->cert);
2009 tsc->cert = fsc->cert;
2010 if (!SSL_set_session_id_context(t, fsc->sid_ctx, (int)fsc->sid_ctx_length)) {
2011 return 0;
2012 }
2013
2014 return 1;
2015}
2016
2017/* Fix this so it checks all the valid key/cert options */
2018int SSL_CTX_check_private_key(const SSL_CTX *ctx)
2019{
2020 if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) {
2021 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2022 return 0;
2023 }
2024 if (ctx->cert->key->privatekey == NULL) {
2025 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2026 return 0;
2027 }
2028 return X509_check_private_key
2029 (ctx->cert->key->x509, ctx->cert->key->privatekey);
2030}
2031
2032/* Fix this function so that it takes an optional type parameter */
2033int SSL_check_private_key(const SSL *ssl)
2034{
2035 const SSL_CONNECTION *sc;
2036
2037 if ((sc = SSL_CONNECTION_FROM_CONST_SSL(ssl)) == NULL) {
2038 ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
2039 return 0;
2040 }
2041 if (sc->cert->key->x509 == NULL) {
2042 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CERTIFICATE_ASSIGNED);
2043 return 0;
2044 }
2045 if (sc->cert->key->privatekey == NULL) {
2046 ERR_raise(ERR_LIB_SSL, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
2047 return 0;
2048 }
2049 return X509_check_private_key(sc->cert->key->x509,
2050 sc->cert->key->privatekey);
2051}
2052
2053int SSL_waiting_for_async(SSL *s)
2054{
2055 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2056
2057 if (sc == NULL)
2058 return 0;
2059
2060 if (sc->job)
2061 return 1;
2062
2063 return 0;
2064}
2065
2066int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds)
2067{
2068 ASYNC_WAIT_CTX *ctx;
2069 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2070
2071 if (sc == NULL)
2072 return 0;
2073
2074 if ((ctx = sc->waitctx) == NULL)
2075 return 0;
2076 return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds);
2077}
2078
2079int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds,
2080 OSSL_ASYNC_FD *delfd, size_t *numdelfds)
2081{
2082 ASYNC_WAIT_CTX *ctx;
2083 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2084
2085 if (sc == NULL)
2086 return 0;
2087
2088 if ((ctx = sc->waitctx) == NULL)
2089 return 0;
2090 return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd,
2091 numdelfds);
2092}
2093
2094int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback)
2095{
2096 ctx->async_cb = callback;
2097 return 1;
2098}
2099
2100int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg)
2101{
2102 ctx->async_cb_arg = arg;
2103 return 1;
2104}
2105
2106int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback)
2107{
2108 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2109
2110 if (sc == NULL)
2111 return 0;
2112
2113 sc->async_cb = callback;
2114 return 1;
2115}
2116
2117int SSL_set_async_callback_arg(SSL *s, void *arg)
2118{
2119 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2120
2121 if (sc == NULL)
2122 return 0;
2123
2124 sc->async_cb_arg = arg;
2125 return 1;
2126}
2127
2128int SSL_get_async_status(SSL *s, int *status)
2129{
2130 ASYNC_WAIT_CTX *ctx;
2131 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2132
2133 if (sc == NULL)
2134 return 0;
2135
2136 if ((ctx = sc->waitctx) == NULL)
2137 return 0;
2138 *status = ASYNC_WAIT_CTX_get_status(ctx);
2139 return 1;
2140}
2141
2142int SSL_accept(SSL *s)
2143{
2144 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2145
2146#ifndef OPENSSL_NO_QUIC
2147 if (IS_QUIC(s))
2148 return s->method->ssl_accept(s);
2149#endif
2150
2151 if (sc == NULL)
2152 return 0;
2153
2154 if (sc->handshake_func == NULL) {
2155 /* Not properly initialized yet */
2156 SSL_set_accept_state(s);
2157 }
2158
2159 return SSL_do_handshake(s);
2160}
2161
2162int SSL_connect(SSL *s)
2163{
2164 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2165
2166#ifndef OPENSSL_NO_QUIC
2167 if (IS_QUIC(s))
2168 return s->method->ssl_connect(s);
2169#endif
2170
2171 if (sc == NULL)
2172 return 0;
2173
2174 if (sc->handshake_func == NULL) {
2175 /* Not properly initialized yet */
2176 SSL_set_connect_state(s);
2177 }
2178
2179 return SSL_do_handshake(s);
2180}
2181
2182long SSL_get_default_timeout(const SSL *s)
2183{
2184 return (long int)ossl_time2seconds(s->method->get_timeout());
2185}
2186
2187static int ssl_async_wait_ctx_cb(void *arg)
2188{
2189 SSL *s = (SSL *)arg;
2190 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2191
2192 if (sc == NULL)
2193 return 0;
2194
2195 return sc->async_cb(s, sc->async_cb_arg);
2196}
2197
2198static int ssl_start_async_job(SSL *s, struct ssl_async_args *args,
2199 int (*func) (void *))
2200{
2201 int ret;
2202 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2203
2204 if (sc == NULL)
2205 return 0;
2206
2207 if (sc->waitctx == NULL) {
2208 sc->waitctx = ASYNC_WAIT_CTX_new();
2209 if (sc->waitctx == NULL)
2210 return -1;
2211 if (sc->async_cb != NULL
2212 && !ASYNC_WAIT_CTX_set_callback
2213 (sc->waitctx, ssl_async_wait_ctx_cb, s))
2214 return -1;
2215 }
2216
2217 sc->rwstate = SSL_NOTHING;
2218 switch (ASYNC_start_job(&sc->job, sc->waitctx, &ret, func, args,
2219 sizeof(struct ssl_async_args))) {
2220 case ASYNC_ERR:
2221 sc->rwstate = SSL_NOTHING;
2222 ERR_raise(ERR_LIB_SSL, SSL_R_FAILED_TO_INIT_ASYNC);
2223 return -1;
2224 case ASYNC_PAUSE:
2225 sc->rwstate = SSL_ASYNC_PAUSED;
2226 return -1;
2227 case ASYNC_NO_JOBS:
2228 sc->rwstate = SSL_ASYNC_NO_JOBS;
2229 return -1;
2230 case ASYNC_FINISH:
2231 sc->job = NULL;
2232 return ret;
2233 default:
2234 sc->rwstate = SSL_NOTHING;
2235 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
2236 /* Shouldn't happen */
2237 return -1;
2238 }
2239}
2240
2241static int ssl_io_intern(void *vargs)
2242{
2243 struct ssl_async_args *args;
2244 SSL *s;
2245 void *buf;
2246 size_t num;
2247 SSL_CONNECTION *sc;
2248
2249 args = (struct ssl_async_args *)vargs;
2250 s = args->s;
2251 buf = args->buf;
2252 num = args->num;
2253 if ((sc = SSL_CONNECTION_FROM_SSL(s)) == NULL)
2254 return -1;
2255
2256 switch (args->type) {
2257 case READFUNC:
2258 return args->f.func_read(s, buf, num, &sc->asyncrw);
2259 case WRITEFUNC:
2260 return args->f.func_write(s, buf, num, &sc->asyncrw);
2261 case OTHERFUNC:
2262 return args->f.func_other(s);
2263 }
2264 return -1;
2265}
2266
2267int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2268{
2269 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2270
2271#ifndef OPENSSL_NO_QUIC
2272 if (IS_QUIC(s))
2273 return s->method->ssl_read(s, buf, num, readbytes);
2274#endif
2275
2276 if (sc == NULL)
2277 return -1;
2278
2279 if (sc->handshake_func == NULL) {
2280 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2281 return -1;
2282 }
2283
2284 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2285 sc->rwstate = SSL_NOTHING;
2286 return 0;
2287 }
2288
2289 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2290 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) {
2291 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2292 return 0;
2293 }
2294 /*
2295 * If we are a client and haven't received the ServerHello etc then we
2296 * better do that
2297 */
2298 ossl_statem_check_finish_init(sc, 0);
2299
2300 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2301 struct ssl_async_args args;
2302 int ret;
2303
2304 args.s = s;
2305 args.buf = buf;
2306 args.num = num;
2307 args.type = READFUNC;
2308 args.f.func_read = s->method->ssl_read;
2309
2310 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2311 *readbytes = sc->asyncrw;
2312 return ret;
2313 } else {
2314 return s->method->ssl_read(s, buf, num, readbytes);
2315 }
2316}
2317
2318int SSL_read(SSL *s, void *buf, int num)
2319{
2320 int ret;
2321 size_t readbytes;
2322
2323 if (num < 0) {
2324 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2325 return -1;
2326 }
2327
2328 ret = ssl_read_internal(s, buf, (size_t)num, &readbytes);
2329
2330 /*
2331 * The cast is safe here because ret should be <= INT_MAX because num is
2332 * <= INT_MAX
2333 */
2334 if (ret > 0)
2335 ret = (int)readbytes;
2336
2337 return ret;
2338}
2339
2340int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2341{
2342 int ret = ssl_read_internal(s, buf, num, readbytes);
2343
2344 if (ret < 0)
2345 ret = 0;
2346 return ret;
2347}
2348
2349int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
2350{
2351 int ret;
2352 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2353
2354 /* TODO(QUIC 0RTT): 0-RTT support */
2355 if (sc == NULL || !sc->server) {
2356 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2357 return SSL_READ_EARLY_DATA_ERROR;
2358 }
2359
2360 switch (sc->early_data_state) {
2361 case SSL_EARLY_DATA_NONE:
2362 if (!SSL_in_before(s)) {
2363 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2364 return SSL_READ_EARLY_DATA_ERROR;
2365 }
2366 /* fall through */
2367
2368 case SSL_EARLY_DATA_ACCEPT_RETRY:
2369 sc->early_data_state = SSL_EARLY_DATA_ACCEPTING;
2370 ret = SSL_accept(s);
2371 if (ret <= 0) {
2372 /* NBIO or error */
2373 sc->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY;
2374 return SSL_READ_EARLY_DATA_ERROR;
2375 }
2376 /* fall through */
2377
2378 case SSL_EARLY_DATA_READ_RETRY:
2379 if (sc->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
2380 sc->early_data_state = SSL_EARLY_DATA_READING;
2381 ret = SSL_read_ex(s, buf, num, readbytes);
2382 /*
2383 * State machine will update early_data_state to
2384 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2385 * message
2386 */
2387 if (ret > 0 || (ret <= 0 && sc->early_data_state
2388 != SSL_EARLY_DATA_FINISHED_READING)) {
2389 sc->early_data_state = SSL_EARLY_DATA_READ_RETRY;
2390 return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS
2391 : SSL_READ_EARLY_DATA_ERROR;
2392 }
2393 } else {
2394 sc->early_data_state = SSL_EARLY_DATA_FINISHED_READING;
2395 }
2396 *readbytes = 0;
2397 return SSL_READ_EARLY_DATA_FINISH;
2398
2399 default:
2400 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2401 return SSL_READ_EARLY_DATA_ERROR;
2402 }
2403}
2404
2405int SSL_get_early_data_status(const SSL *s)
2406{
2407 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
2408
2409 /* TODO(QUIC 0RTT): 0-RTT support */
2410 if (sc == NULL)
2411 return 0;
2412
2413 return sc->ext.early_data;
2414}
2415
2416static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes)
2417{
2418 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2419
2420#ifndef OPENSSL_NO_QUIC
2421 if (IS_QUIC(s))
2422 return s->method->ssl_peek(s, buf, num, readbytes);
2423#endif
2424
2425 if (sc == NULL)
2426 return 0;
2427
2428 if (sc->handshake_func == NULL) {
2429 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2430 return -1;
2431 }
2432
2433 if (sc->shutdown & SSL_RECEIVED_SHUTDOWN) {
2434 return 0;
2435 }
2436 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2437 struct ssl_async_args args;
2438 int ret;
2439
2440 args.s = s;
2441 args.buf = buf;
2442 args.num = num;
2443 args.type = READFUNC;
2444 args.f.func_read = s->method->ssl_peek;
2445
2446 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2447 *readbytes = sc->asyncrw;
2448 return ret;
2449 } else {
2450 return s->method->ssl_peek(s, buf, num, readbytes);
2451 }
2452}
2453
2454int SSL_peek(SSL *s, void *buf, int num)
2455{
2456 int ret;
2457 size_t readbytes;
2458
2459 if (num < 0) {
2460 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2461 return -1;
2462 }
2463
2464 ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes);
2465
2466 /*
2467 * The cast is safe here because ret should be <= INT_MAX because num is
2468 * <= INT_MAX
2469 */
2470 if (ret > 0)
2471 ret = (int)readbytes;
2472
2473 return ret;
2474}
2475
2476
2477int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes)
2478{
2479 int ret = ssl_peek_internal(s, buf, num, readbytes);
2480
2481 if (ret < 0)
2482 ret = 0;
2483 return ret;
2484}
2485
2486int ssl_write_internal(SSL *s, const void *buf, size_t num,
2487 uint64_t flags, size_t *written)
2488{
2489 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2490
2491#ifndef OPENSSL_NO_QUIC
2492 if (IS_QUIC(s))
2493 return ossl_quic_write_flags(s, buf, num, flags, written);
2494#endif
2495
2496 if (sc == NULL)
2497 return 0;
2498
2499 if (sc->handshake_func == NULL) {
2500 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2501 return -1;
2502 }
2503
2504 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2505 sc->rwstate = SSL_NOTHING;
2506 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2507 return -1;
2508 }
2509
2510 if (flags != 0) {
2511 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_WRITE_FLAG);
2512 return -1;
2513 }
2514
2515 if (sc->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY
2516 || sc->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY
2517 || sc->early_data_state == SSL_EARLY_DATA_READ_RETRY) {
2518 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2519 return 0;
2520 }
2521 /* If we are a client and haven't sent the Finished we better do that */
2522 ossl_statem_check_finish_init(sc, 1);
2523
2524 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2525 int ret;
2526 struct ssl_async_args args;
2527
2528 args.s = s;
2529 args.buf = (void *)buf;
2530 args.num = num;
2531 args.type = WRITEFUNC;
2532 args.f.func_write = s->method->ssl_write;
2533
2534 ret = ssl_start_async_job(s, &args, ssl_io_intern);
2535 *written = sc->asyncrw;
2536 return ret;
2537 } else {
2538 return s->method->ssl_write(s, buf, num, written);
2539 }
2540}
2541
2542ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags)
2543{
2544 ossl_ssize_t ret;
2545 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2546
2547 if (sc == NULL)
2548 return 0;
2549
2550 if (sc->handshake_func == NULL) {
2551 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2552 return -1;
2553 }
2554
2555 if (sc->shutdown & SSL_SENT_SHUTDOWN) {
2556 sc->rwstate = SSL_NOTHING;
2557 ERR_raise(ERR_LIB_SSL, SSL_R_PROTOCOL_IS_SHUTDOWN);
2558 return -1;
2559 }
2560
2561 if (!BIO_get_ktls_send(sc->wbio)) {
2562 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2563 return -1;
2564 }
2565
2566 /* If we have an alert to send, lets send it */
2567 if (sc->s3.alert_dispatch > 0) {
2568 ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s);
2569 if (ret <= 0) {
2570 /* SSLfatal() already called if appropriate */
2571 return ret;
2572 }
2573 /* if it went, fall through and send more stuff */
2574 }
2575
2576 sc->rwstate = SSL_WRITING;
2577 if (BIO_flush(sc->wbio) <= 0) {
2578 if (!BIO_should_retry(sc->wbio)) {
2579 sc->rwstate = SSL_NOTHING;
2580 } else {
2581#ifdef EAGAIN
2582 set_sys_error(EAGAIN);
2583#endif
2584 }
2585 return -1;
2586 }
2587
2588#ifdef OPENSSL_NO_KTLS
2589 ERR_raise_data(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR,
2590 "can't call ktls_sendfile(), ktls disabled");
2591 return -1;
2592#else
2593 ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags);
2594 if (ret < 0) {
2595#if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2596 if ((get_last_sys_error() == EAGAIN) ||
2597 (get_last_sys_error() == EINTR) ||
2598 (get_last_sys_error() == EBUSY))
2599 BIO_set_retry_write(sc->wbio);
2600 else
2601#endif
2602 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2603 return ret;
2604 }
2605 sc->rwstate = SSL_NOTHING;
2606 return ret;
2607#endif
2608}
2609
2610int SSL_write(SSL *s, const void *buf, int num)
2611{
2612 int ret;
2613 size_t written;
2614
2615 if (num < 0) {
2616 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
2617 return -1;
2618 }
2619
2620 ret = ssl_write_internal(s, buf, (size_t)num, 0, &written);
2621
2622 /*
2623 * The cast is safe here because ret should be <= INT_MAX because num is
2624 * <= INT_MAX
2625 */
2626 if (ret > 0)
2627 ret = (int)written;
2628
2629 return ret;
2630}
2631
2632int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
2633{
2634 return SSL_write_ex2(s, buf, num, 0, written);
2635}
2636
2637int SSL_write_ex2(SSL *s, const void *buf, size_t num, uint64_t flags,
2638 size_t *written)
2639{
2640 int ret = ssl_write_internal(s, buf, num, flags, written);
2641
2642 if (ret < 0)
2643 ret = 0;
2644 return ret;
2645}
2646
2647int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
2648{
2649 int ret, early_data_state;
2650 size_t writtmp;
2651 uint32_t partialwrite;
2652 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2653
2654 /* TODO(QUIC 0RTT): This will need special handling for QUIC */
2655 if (sc == NULL)
2656 return 0;
2657
2658 switch (sc->early_data_state) {
2659 case SSL_EARLY_DATA_NONE:
2660 if (sc->server
2661 || !SSL_in_before(s)
2662 || ((sc->session == NULL || sc->session->ext.max_early_data == 0)
2663 && (sc->psk_use_session_cb == NULL))) {
2664 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2665 return 0;
2666 }
2667 /* fall through */
2668
2669 case SSL_EARLY_DATA_CONNECT_RETRY:
2670 sc->early_data_state = SSL_EARLY_DATA_CONNECTING;
2671 ret = SSL_connect(s);
2672 if (ret <= 0) {
2673 /* NBIO or error */
2674 sc->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY;
2675 return 0;
2676 }
2677 /* fall through */
2678
2679 case SSL_EARLY_DATA_WRITE_RETRY:
2680 sc->early_data_state = SSL_EARLY_DATA_WRITING;
2681 /*
2682 * We disable partial write for early data because we don't keep track
2683 * of how many bytes we've written between the SSL_write_ex() call and
2684 * the flush if the flush needs to be retried)
2685 */
2686 partialwrite = sc->mode & SSL_MODE_ENABLE_PARTIAL_WRITE;
2687 sc->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE;
2688 ret = SSL_write_ex(s, buf, num, &writtmp);
2689 sc->mode |= partialwrite;
2690 if (!ret) {
2691 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2692 return ret;
2693 }
2694 sc->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH;
2695 /* fall through */
2696
2697 case SSL_EARLY_DATA_WRITE_FLUSH:
2698 /* The buffering BIO is still in place so we need to flush it */
2699 if (statem_flush(sc) != 1)
2700 return 0;
2701 *written = num;
2702 sc->early_data_state = SSL_EARLY_DATA_WRITE_RETRY;
2703 return 1;
2704
2705 case SSL_EARLY_DATA_FINISHED_READING:
2706 case SSL_EARLY_DATA_READ_RETRY:
2707 early_data_state = sc->early_data_state;
2708 /* We are a server writing to an unauthenticated client */
2709 sc->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
2710 ret = SSL_write_ex(s, buf, num, written);
2711 /* The buffering BIO is still in place */
2712 if (ret)
2713 (void)BIO_flush(sc->wbio);
2714 sc->early_data_state = early_data_state;
2715 return ret;
2716
2717 default:
2718 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2719 return 0;
2720 }
2721}
2722
2723int SSL_shutdown(SSL *s)
2724{
2725 /*
2726 * Note that this function behaves differently from what one might
2727 * expect. Return values are 0 for no success (yet), 1 for success; but
2728 * calling it once is usually not enough, even if blocking I/O is used
2729 * (see ssl3_shutdown).
2730 */
2731 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2732
2733#ifndef OPENSSL_NO_QUIC
2734 if (IS_QUIC(s))
2735 return ossl_quic_conn_shutdown(s, 0, NULL, 0);
2736#endif
2737
2738 if (sc == NULL)
2739 return -1;
2740
2741 if (sc->handshake_func == NULL) {
2742 ERR_raise(ERR_LIB_SSL, SSL_R_UNINITIALIZED);
2743 return -1;
2744 }
2745
2746 if (!SSL_in_init(s)) {
2747 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
2748 struct ssl_async_args args;
2749
2750 memset(&args, 0, sizeof(args));
2751 args.s = s;
2752 args.type = OTHERFUNC;
2753 args.f.func_other = s->method->ssl_shutdown;
2754
2755 return ssl_start_async_job(s, &args, ssl_io_intern);
2756 } else {
2757 return s->method->ssl_shutdown(s);
2758 }
2759 } else {
2760 ERR_raise(ERR_LIB_SSL, SSL_R_SHUTDOWN_WHILE_IN_INIT);
2761 return -1;
2762 }
2763}
2764
2765int SSL_key_update(SSL *s, int updatetype)
2766{
2767 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2768
2769#ifndef OPENSSL_NO_QUIC
2770 if (IS_QUIC(s))
2771 return ossl_quic_key_update(s, updatetype);
2772#endif
2773
2774 if (sc == NULL)
2775 return 0;
2776
2777 if (!SSL_CONNECTION_IS_TLS13(sc)) {
2778 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2779 return 0;
2780 }
2781
2782 if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED
2783 && updatetype != SSL_KEY_UPDATE_REQUESTED) {
2784 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_KEY_UPDATE_TYPE);
2785 return 0;
2786 }
2787
2788 if (!SSL_is_init_finished(s)) {
2789 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
2790 return 0;
2791 }
2792
2793 if (RECORD_LAYER_write_pending(&sc->rlayer)) {
2794 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_WRITE_RETRY);
2795 return 0;
2796 }
2797
2798 ossl_statem_set_in_init(sc, 1);
2799 sc->key_update = updatetype;
2800 return 1;
2801}
2802
2803int SSL_get_key_update_type(const SSL *s)
2804{
2805 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
2806
2807#ifndef OPENSSL_NO_QUIC
2808 if (IS_QUIC(s))
2809 return ossl_quic_get_key_update_type(s);
2810#endif
2811
2812 if (sc == NULL)
2813 return 0;
2814
2815 return sc->key_update;
2816}
2817
2818/*
2819 * Can we accept a renegotiation request? If yes, set the flag and
2820 * return 1 if yes. If not, raise error and return 0.
2821 */
2822static int can_renegotiate(const SSL_CONNECTION *sc)
2823{
2824 if (SSL_CONNECTION_IS_TLS13(sc)) {
2825 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
2826 return 0;
2827 }
2828
2829 if ((sc->options & SSL_OP_NO_RENEGOTIATION) != 0) {
2830 ERR_raise(ERR_LIB_SSL, SSL_R_NO_RENEGOTIATION);
2831 return 0;
2832 }
2833
2834 return 1;
2835}
2836
2837int SSL_renegotiate(SSL *s)
2838{
2839 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2840
2841 if (sc == NULL)
2842 return 0;
2843
2844 if (!can_renegotiate(sc))
2845 return 0;
2846
2847 sc->renegotiate = 1;
2848 sc->new_session = 1;
2849 return s->method->ssl_renegotiate(s);
2850}
2851
2852int SSL_renegotiate_abbreviated(SSL *s)
2853{
2854 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2855
2856 if (sc == NULL)
2857 return 0;
2858
2859 if (!can_renegotiate(sc))
2860 return 0;
2861
2862 sc->renegotiate = 1;
2863 sc->new_session = 0;
2864 return s->method->ssl_renegotiate(s);
2865}
2866
2867int SSL_renegotiate_pending(const SSL *s)
2868{
2869 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
2870
2871 if (sc == NULL)
2872 return 0;
2873
2874 /*
2875 * becomes true when negotiation is requested; false again once a
2876 * handshake has finished
2877 */
2878 return (sc->renegotiate != 0);
2879}
2880
2881int SSL_new_session_ticket(SSL *s)
2882{
2883 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2884
2885 if (sc == NULL)
2886 return 0;
2887
2888 /* If we are in init because we're sending tickets, okay to send more. */
2889 if ((SSL_in_init(s) && sc->ext.extra_tickets_expected == 0)
2890 || SSL_IS_FIRST_HANDSHAKE(sc) || !sc->server
2891 || !SSL_CONNECTION_IS_TLS13(sc))
2892 return 0;
2893 sc->ext.extra_tickets_expected++;
2894 if (!RECORD_LAYER_write_pending(&sc->rlayer) && !SSL_in_init(s))
2895 ossl_statem_set_in_init(sc, 1);
2896 return 1;
2897}
2898
2899long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
2900{
2901 return ossl_ctrl_internal(s, cmd, larg, parg, /*no_quic=*/0);
2902}
2903
2904long ossl_ctrl_internal(SSL *s, int cmd, long larg, void *parg, int no_quic)
2905{
2906 long l;
2907 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
2908
2909 /*
2910 * Routing of ctrl calls for QUIC is a little counterintuitive:
2911 *
2912 * - Firstly (no_quic=0), we pass the ctrl directly to our QUIC
2913 * implementation in case it wants to handle the ctrl specially.
2914 *
2915 * - If our QUIC implementation does not care about the ctrl, it
2916 * will reenter this function with no_quic=1 and we will try to handle
2917 * it directly using the QCSO SSL object stub (not the handshake layer
2918 * SSL object). This is important for e.g. the version configuration
2919 * ctrls below, which must use s->defltmeth (and not sc->defltmeth).
2920 *
2921 * - If we don't handle a ctrl here specially, then processing is
2922 * redirected to the handshake layer SSL object.
2923 */
2924 if (!no_quic && IS_QUIC(s))
2925 return s->method->ssl_ctrl(s, cmd, larg, parg);
2926
2927 if (sc == NULL)
2928 return 0;
2929
2930 switch (cmd) {
2931 case SSL_CTRL_GET_READ_AHEAD:
2932 return RECORD_LAYER_get_read_ahead(&sc->rlayer);
2933 case SSL_CTRL_SET_READ_AHEAD:
2934 l = RECORD_LAYER_get_read_ahead(&sc->rlayer);
2935 RECORD_LAYER_set_read_ahead(&sc->rlayer, larg);
2936 return l;
2937
2938 case SSL_CTRL_MODE:
2939 {
2940 OSSL_PARAM options[2], *opts = options;
2941
2942 sc->mode |= larg;
2943
2944 *opts++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE,
2945 &sc->mode);
2946 *opts = OSSL_PARAM_construct_end();
2947
2948 /* Ignore return value */
2949 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
2950
2951 return sc->mode;
2952 }
2953 case SSL_CTRL_CLEAR_MODE:
2954 return (sc->mode &= ~larg);
2955 case SSL_CTRL_GET_MAX_CERT_LIST:
2956 return (long)sc->max_cert_list;
2957 case SSL_CTRL_SET_MAX_CERT_LIST:
2958 if (larg < 0)
2959 return 0;
2960 l = (long)sc->max_cert_list;
2961 sc->max_cert_list = (size_t)larg;
2962 return l;
2963 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
2964 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
2965 return 0;
2966#ifndef OPENSSL_NO_KTLS
2967 if (sc->wbio != NULL && BIO_get_ktls_send(sc->wbio))
2968 return 0;
2969#endif /* OPENSSL_NO_KTLS */
2970 sc->max_send_fragment = larg;
2971 if (sc->max_send_fragment < sc->split_send_fragment)
2972 sc->split_send_fragment = sc->max_send_fragment;
2973 sc->rlayer.wrlmethod->set_max_frag_len(sc->rlayer.wrl, larg);
2974 return 1;
2975 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
2976 if ((size_t)larg > sc->max_send_fragment || larg == 0)
2977 return 0;
2978 sc->split_send_fragment = larg;
2979 return 1;
2980 case SSL_CTRL_SET_MAX_PIPELINES:
2981 if (larg < 1 || larg > SSL_MAX_PIPELINES)
2982 return 0;
2983 sc->max_pipelines = larg;
2984 if (sc->rlayer.rrlmethod->set_max_pipelines != NULL)
2985 sc->rlayer.rrlmethod->set_max_pipelines(sc->rlayer.rrl, (size_t)larg);
2986 return 1;
2987 case SSL_CTRL_GET_RI_SUPPORT:
2988 return sc->s3.send_connection_binding;
2989 case SSL_CTRL_SET_RETRY_VERIFY:
2990 sc->rwstate = SSL_RETRY_VERIFY;
2991 return 1;
2992 case SSL_CTRL_CERT_FLAGS:
2993 return (sc->cert->cert_flags |= larg);
2994 case SSL_CTRL_CLEAR_CERT_FLAGS:
2995 return (sc->cert->cert_flags &= ~larg);
2996
2997 case SSL_CTRL_GET_RAW_CIPHERLIST:
2998 if (parg) {
2999 if (sc->s3.tmp.ciphers_raw == NULL)
3000 return 0;
3001 *(unsigned char **)parg = sc->s3.tmp.ciphers_raw;
3002 return (int)sc->s3.tmp.ciphers_rawlen;
3003 } else {
3004 return TLS_CIPHER_LEN;
3005 }
3006 case SSL_CTRL_GET_EXTMS_SUPPORT:
3007 if (!sc->session || SSL_in_init(s) || ossl_statem_get_in_handshake(sc))
3008 return -1;
3009 if (sc->session->flags & SSL_SESS_FLAG_EXTMS)
3010 return 1;
3011 else
3012 return 0;
3013 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3014 return ssl_check_allowed_versions(larg, sc->max_proto_version)
3015 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3016 &sc->min_proto_version);
3017 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3018 return sc->min_proto_version;
3019 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3020 return ssl_check_allowed_versions(sc->min_proto_version, larg)
3021 && ssl_set_version_bound(s->defltmeth->version, (int)larg,
3022 &sc->max_proto_version);
3023 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3024 return sc->max_proto_version;
3025 default:
3026 if (IS_QUIC(s))
3027 return SSL_ctrl((SSL *)sc, cmd, larg, parg);
3028 else
3029 return s->method->ssl_ctrl(s, cmd, larg, parg);
3030 }
3031}
3032
3033long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
3034{
3035 return s->method->ssl_callback_ctrl(s, cmd, fp);
3036}
3037
3038LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
3039{
3040 return ctx->sessions;
3041}
3042
3043static int ssl_tsan_load(SSL_CTX *ctx, TSAN_QUALIFIER int *stat)
3044{
3045 int res = 0;
3046
3047 if (ssl_tsan_lock(ctx)) {
3048 res = tsan_load(stat);
3049 ssl_tsan_unlock(ctx);
3050 }
3051 return res;
3052}
3053
3054long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
3055{
3056 long l;
3057 /* For some cases with ctx == NULL perform syntax checks */
3058 if (ctx == NULL) {
3059 switch (cmd) {
3060 case SSL_CTRL_SET_GROUPS_LIST:
3061 return tls1_set_groups_list(ctx, NULL, NULL, parg);
3062 case SSL_CTRL_SET_SIGALGS_LIST:
3063 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
3064 return tls1_set_sigalgs_list(ctx, NULL, parg, 0);
3065 default:
3066 return 0;
3067 }
3068 }
3069
3070 switch (cmd) {
3071 case SSL_CTRL_GET_READ_AHEAD:
3072 return ctx->read_ahead;
3073 case SSL_CTRL_SET_READ_AHEAD:
3074 l = ctx->read_ahead;
3075 ctx->read_ahead = larg;
3076 return l;
3077
3078 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
3079 ctx->msg_callback_arg = parg;
3080 return 1;
3081
3082 case SSL_CTRL_GET_MAX_CERT_LIST:
3083 return (long)ctx->max_cert_list;
3084 case SSL_CTRL_SET_MAX_CERT_LIST:
3085 if (larg < 0)
3086 return 0;
3087 l = (long)ctx->max_cert_list;
3088 ctx->max_cert_list = (size_t)larg;
3089 return l;
3090
3091 case SSL_CTRL_SET_SESS_CACHE_SIZE:
3092 if (larg < 0)
3093 return 0;
3094 l = (long)ctx->session_cache_size;
3095 ctx->session_cache_size = (size_t)larg;
3096 return l;
3097 case SSL_CTRL_GET_SESS_CACHE_SIZE:
3098 return (long)ctx->session_cache_size;
3099 case SSL_CTRL_SET_SESS_CACHE_MODE:
3100 l = ctx->session_cache_mode;
3101 ctx->session_cache_mode = larg;
3102 return l;
3103 case SSL_CTRL_GET_SESS_CACHE_MODE:
3104 return ctx->session_cache_mode;
3105
3106 case SSL_CTRL_SESS_NUMBER:
3107 return lh_SSL_SESSION_num_items(ctx->sessions);
3108 case SSL_CTRL_SESS_CONNECT:
3109 return ssl_tsan_load(ctx, &ctx->stats.sess_connect);
3110 case SSL_CTRL_SESS_CONNECT_GOOD:
3111 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_good);
3112 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
3113 return ssl_tsan_load(ctx, &ctx->stats.sess_connect_renegotiate);
3114 case SSL_CTRL_SESS_ACCEPT:
3115 return ssl_tsan_load(ctx, &ctx->stats.sess_accept);
3116 case SSL_CTRL_SESS_ACCEPT_GOOD:
3117 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_good);
3118 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
3119 return ssl_tsan_load(ctx, &ctx->stats.sess_accept_renegotiate);
3120 case SSL_CTRL_SESS_HIT:
3121 return ssl_tsan_load(ctx, &ctx->stats.sess_hit);
3122 case SSL_CTRL_SESS_CB_HIT:
3123 return ssl_tsan_load(ctx, &ctx->stats.sess_cb_hit);
3124 case SSL_CTRL_SESS_MISSES:
3125 return ssl_tsan_load(ctx, &ctx->stats.sess_miss);
3126 case SSL_CTRL_SESS_TIMEOUTS:
3127 return ssl_tsan_load(ctx, &ctx->stats.sess_timeout);
3128 case SSL_CTRL_SESS_CACHE_FULL:
3129 return ssl_tsan_load(ctx, &ctx->stats.sess_cache_full);
3130 case SSL_CTRL_MODE:
3131 return (ctx->mode |= larg);
3132 case SSL_CTRL_CLEAR_MODE:
3133 return (ctx->mode &= ~larg);
3134 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
3135 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
3136 return 0;
3137 ctx->max_send_fragment = larg;
3138 if (ctx->max_send_fragment < ctx->split_send_fragment)
3139 ctx->split_send_fragment = ctx->max_send_fragment;
3140 return 1;
3141 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT:
3142 if ((size_t)larg > ctx->max_send_fragment || larg == 0)
3143 return 0;
3144 ctx->split_send_fragment = larg;
3145 return 1;
3146 case SSL_CTRL_SET_MAX_PIPELINES:
3147 if (larg < 1 || larg > SSL_MAX_PIPELINES)
3148 return 0;
3149 ctx->max_pipelines = larg;
3150 return 1;
3151 case SSL_CTRL_CERT_FLAGS:
3152 return (ctx->cert->cert_flags |= larg);
3153 case SSL_CTRL_CLEAR_CERT_FLAGS:
3154 return (ctx->cert->cert_flags &= ~larg);
3155 case SSL_CTRL_SET_MIN_PROTO_VERSION:
3156 return ssl_check_allowed_versions(larg, ctx->max_proto_version)
3157 && ssl_set_version_bound(ctx->method->version, (int)larg,
3158 &ctx->min_proto_version);
3159 case SSL_CTRL_GET_MIN_PROTO_VERSION:
3160 return ctx->min_proto_version;
3161 case SSL_CTRL_SET_MAX_PROTO_VERSION:
3162 return ssl_check_allowed_versions(ctx->min_proto_version, larg)
3163 && ssl_set_version_bound(ctx->method->version, (int)larg,
3164 &ctx->max_proto_version);
3165 case SSL_CTRL_GET_MAX_PROTO_VERSION:
3166 return ctx->max_proto_version;
3167 default:
3168 return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg);
3169 }
3170}
3171
3172long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
3173{
3174 switch (cmd) {
3175 case SSL_CTRL_SET_MSG_CALLBACK:
3176 ctx->msg_callback = (void (*)
3177 (int write_p, int version, int content_type,
3178 const void *buf, size_t len, SSL *ssl,
3179 void *arg))(fp);
3180 return 1;
3181
3182 default:
3183 return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp);
3184 }
3185}
3186
3187int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
3188{
3189 if (a->id > b->id)
3190 return 1;
3191 if (a->id < b->id)
3192 return -1;
3193 return 0;
3194}
3195
3196int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
3197 const SSL_CIPHER *const *bp)
3198{
3199 if ((*ap)->id > (*bp)->id)
3200 return 1;
3201 if ((*ap)->id < (*bp)->id)
3202 return -1;
3203 return 0;
3204}
3205
3206/*
3207 * return a STACK of the ciphers available for the SSL and in order of
3208 * preference
3209 */
3210STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
3211{
3212 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3213
3214 if (sc != NULL) {
3215 if (sc->cipher_list != NULL) {
3216 return sc->cipher_list;
3217 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
3218 return s->ctx->cipher_list;
3219 }
3220 }
3221 return NULL;
3222}
3223
3224STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
3225{
3226 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3227
3228 if (sc == NULL || !sc->server)
3229 return NULL;
3230 return sc->peer_ciphers;
3231}
3232
3233STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
3234{
3235 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
3236 int i;
3237 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3238
3239 if (sc == NULL)
3240 return NULL;
3241
3242 ciphers = SSL_get_ciphers(s);
3243 if (!ciphers)
3244 return NULL;
3245 if (!ssl_set_client_disabled(sc))
3246 return NULL;
3247 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
3248 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
3249 if (!ssl_cipher_disabled(sc, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) {
3250 if (!sk)
3251 sk = sk_SSL_CIPHER_new_null();
3252 if (!sk)
3253 return NULL;
3254 if (!sk_SSL_CIPHER_push(sk, c)) {
3255 sk_SSL_CIPHER_free(sk);
3256 return NULL;
3257 }
3258 }
3259 }
3260 return sk;
3261}
3262
3263/** return a STACK of the ciphers available for the SSL and in order of
3264 * algorithm id */
3265STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *s)
3266{
3267 if (s != NULL) {
3268 if (s->cipher_list_by_id != NULL)
3269 return s->cipher_list_by_id;
3270 else if (s->ssl.ctx != NULL
3271 && s->ssl.ctx->cipher_list_by_id != NULL)
3272 return s->ssl.ctx->cipher_list_by_id;
3273 }
3274 return NULL;
3275}
3276
3277/** The old interface to get the same thing as SSL_get_ciphers() */
3278const char *SSL_get_cipher_list(const SSL *s, int n)
3279{
3280 const SSL_CIPHER *c;
3281 STACK_OF(SSL_CIPHER) *sk;
3282
3283 if (s == NULL)
3284 return NULL;
3285 sk = SSL_get_ciphers(s);
3286 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
3287 return NULL;
3288 c = sk_SSL_CIPHER_value(sk, n);
3289 if (c == NULL)
3290 return NULL;
3291 return c->name;
3292}
3293
3294/** return a STACK of the ciphers available for the SSL_CTX and in order of
3295 * preference */
3296STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx)
3297{
3298 if (ctx != NULL)
3299 return ctx->cipher_list;
3300 return NULL;
3301}
3302
3303/*
3304 * Distinguish between ciphers controlled by set_ciphersuite() and
3305 * set_cipher_list() when counting.
3306 */
3307static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk)
3308{
3309 int i, num = 0;
3310 const SSL_CIPHER *c;
3311
3312 if (sk == NULL)
3313 return 0;
3314 for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) {
3315 c = sk_SSL_CIPHER_value(sk, i);
3316 if (c->min_tls >= TLS1_3_VERSION)
3317 continue;
3318 num++;
3319 }
3320 return num;
3321}
3322
3323/** specify the ciphers to be used by default by the SSL_CTX */
3324int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
3325{
3326 STACK_OF(SSL_CIPHER) *sk;
3327
3328 sk = ssl_create_cipher_list(ctx, ctx->tls13_ciphersuites,
3329 &ctx->cipher_list, &ctx->cipher_list_by_id, str,
3330 ctx->cert);
3331 /*
3332 * ssl_create_cipher_list may return an empty stack if it was unable to
3333 * find a cipher matching the given rule string (for example if the rule
3334 * string specifies a cipher which has been disabled). This is not an
3335 * error as far as ssl_create_cipher_list is concerned, and hence
3336 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3337 */
3338 if (sk == NULL)
3339 return 0;
3340 else if (cipher_list_tls12_num(sk) == 0) {
3341 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3342 return 0;
3343 }
3344 return 1;
3345}
3346
3347/** specify the ciphers to be used by the SSL */
3348int SSL_set_cipher_list(SSL *s, const char *str)
3349{
3350 STACK_OF(SSL_CIPHER) *sk;
3351 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3352
3353 if (sc == NULL)
3354 return 0;
3355
3356 sk = ssl_create_cipher_list(s->ctx, sc->tls13_ciphersuites,
3357 &sc->cipher_list, &sc->cipher_list_by_id, str,
3358 sc->cert);
3359 /* see comment in SSL_CTX_set_cipher_list */
3360 if (sk == NULL)
3361 return 0;
3362 else if (cipher_list_tls12_num(sk) == 0) {
3363 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH);
3364 return 0;
3365 }
3366 return 1;
3367}
3368
3369char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size)
3370{
3371 char *p;
3372 STACK_OF(SSL_CIPHER) *clntsk, *srvrsk;
3373 const SSL_CIPHER *c;
3374 int i;
3375 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3376
3377 if (sc == NULL)
3378 return NULL;
3379
3380 if (!sc->server
3381 || sc->peer_ciphers == NULL
3382 || size < 2)
3383 return NULL;
3384
3385 p = buf;
3386 clntsk = sc->peer_ciphers;
3387 srvrsk = SSL_get_ciphers(s);
3388 if (clntsk == NULL || srvrsk == NULL)
3389 return NULL;
3390
3391 if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0)
3392 return NULL;
3393
3394 for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) {
3395 int n;
3396
3397 c = sk_SSL_CIPHER_value(clntsk, i);
3398 if (sk_SSL_CIPHER_find(srvrsk, c) < 0)
3399 continue;
3400
3401 n = OPENSSL_strnlen(c->name, size);
3402 if (n >= size) {
3403 if (p != buf)
3404 --p;
3405 *p = '\0';
3406 return buf;
3407 }
3408 memcpy(p, c->name, n);
3409 p += n;
3410 *(p++) = ':';
3411 size -= n + 1;
3412 }
3413 p[-1] = '\0';
3414 return buf;
3415}
3416
3417/**
3418 * Return the requested servername (SNI) value. Note that the behaviour varies
3419 * depending on:
3420 * - whether this is called by the client or the server,
3421 * - if we are before or during/after the handshake,
3422 * - if a resumption or normal handshake is being attempted/has occurred
3423 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3424 *
3425 * Note that only the host_name type is defined (RFC 3546).
3426 */
3427const char *SSL_get_servername(const SSL *s, const int type)
3428{
3429 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3430 int server;
3431
3432 if (sc == NULL)
3433 return NULL;
3434
3435 /*
3436 * If we don't know if we are the client or the server yet then we assume
3437 * client.
3438 */
3439 server = sc->handshake_func == NULL ? 0 : sc->server;
3440
3441 if (type != TLSEXT_NAMETYPE_host_name)
3442 return NULL;
3443
3444 if (server) {
3445 /**
3446 * Server side
3447 * In TLSv1.3 on the server SNI is not associated with the session
3448 * but in TLSv1.2 or below it is.
3449 *
3450 * Before the handshake:
3451 * - return NULL
3452 *
3453 * During/after the handshake (TLSv1.2 or below resumption occurred):
3454 * - If a servername was accepted by the server in the original
3455 * handshake then it will return that servername, or NULL otherwise.
3456 *
3457 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3458 * - The function will return the servername requested by the client in
3459 * this handshake or NULL if none was requested.
3460 */
3461 if (sc->hit && !SSL_CONNECTION_IS_TLS13(sc))
3462 return sc->session->ext.hostname;
3463 } else {
3464 /**
3465 * Client side
3466 *
3467 * Before the handshake:
3468 * - If a servername has been set via a call to
3469 * SSL_set_tlsext_host_name() then it will return that servername
3470 * - If one has not been set, but a TLSv1.2 resumption is being
3471 * attempted and the session from the original handshake had a
3472 * servername accepted by the server then it will return that
3473 * servername
3474 * - Otherwise it returns NULL
3475 *
3476 * During/after the handshake (TLSv1.2 or below resumption occurred):
3477 * - If the session from the original handshake had a servername accepted
3478 * by the server then it will return that servername.
3479 * - Otherwise it returns the servername set via
3480 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3481 *
3482 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3483 * - It will return the servername set via SSL_set_tlsext_host_name()
3484 * (or NULL if it was not called).
3485 */
3486 if (SSL_in_before(s)) {
3487 if (sc->ext.hostname == NULL
3488 && sc->session != NULL
3489 && sc->session->ssl_version != TLS1_3_VERSION)
3490 return sc->session->ext.hostname;
3491 } else {
3492 if (!SSL_CONNECTION_IS_TLS13(sc) && sc->hit
3493 && sc->session->ext.hostname != NULL)
3494 return sc->session->ext.hostname;
3495 }
3496 }
3497
3498 return sc->ext.hostname;
3499}
3500
3501int SSL_get_servername_type(const SSL *s)
3502{
3503 if (SSL_get_servername(s, TLSEXT_NAMETYPE_host_name) != NULL)
3504 return TLSEXT_NAMETYPE_host_name;
3505 return -1;
3506}
3507
3508/*
3509 * SSL_select_next_proto implements the standard protocol selection. It is
3510 * expected that this function is called from the callback set by
3511 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3512 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3513 * not included in the length. A byte string of length 0 is invalid. No byte
3514 * string may be truncated. The current, but experimental algorithm for
3515 * selecting the protocol is: 1) If the server doesn't support NPN then this
3516 * is indicated to the callback. In this case, the client application has to
3517 * abort the connection or have a default application level protocol. 2) If
3518 * the server supports NPN, but advertises an empty list then the client
3519 * selects the first protocol in its list, but indicates via the API that this
3520 * fallback case was enacted. 3) Otherwise, the client finds the first
3521 * protocol in the server's list that it supports and selects this protocol.
3522 * This is because it's assumed that the server has better information about
3523 * which protocol a client should use. 4) If the client doesn't support any
3524 * of the server's advertised protocols, then this is treated the same as
3525 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3526 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3527 */
3528int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
3529 const unsigned char *server,
3530 unsigned int server_len,
3531 const unsigned char *client, unsigned int client_len)
3532{
3533 unsigned int i, j;
3534 const unsigned char *result;
3535 int status = OPENSSL_NPN_UNSUPPORTED;
3536
3537 /*
3538 * For each protocol in server preference order, see if we support it.
3539 */
3540 for (i = 0; i < server_len;) {
3541 for (j = 0; j < client_len;) {
3542 if (server[i] == client[j] &&
3543 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
3544 /* We found a match */
3545 result = &server[i];
3546 status = OPENSSL_NPN_NEGOTIATED;
3547 goto found;
3548 }
3549 j += client[j];
3550 j++;
3551 }
3552 i += server[i];
3553 i++;
3554 }
3555
3556 /* There's no overlap between our protocols and the server's list. */
3557 result = client;
3558 status = OPENSSL_NPN_NO_OVERLAP;
3559
3560 found:
3561 *out = (unsigned char *)result + 1;
3562 *outlen = result[0];
3563 return status;
3564}
3565
3566#ifndef OPENSSL_NO_NEXTPROTONEG
3567/*
3568 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3569 * client's requested protocol for this connection and returns 0. If the
3570 * client didn't request any protocol, then *data is set to NULL. Note that
3571 * the client can request any protocol it chooses. The value returned from
3572 * this function need not be a member of the list of supported protocols
3573 * provided by the callback.
3574 */
3575void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
3576 unsigned *len)
3577{
3578 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
3579
3580 if (sc == NULL) {
3581 /* We have no other way to indicate error */
3582 *data = NULL;
3583 *len = 0;
3584 return;
3585 }
3586
3587 *data = sc->ext.npn;
3588 if (*data == NULL) {
3589 *len = 0;
3590 } else {
3591 *len = (unsigned int)sc->ext.npn_len;
3592 }
3593}
3594
3595/*
3596 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3597 * a TLS server needs a list of supported protocols for Next Protocol
3598 * Negotiation. The returned list must be in wire format. The list is
3599 * returned by setting |out| to point to it and |outlen| to its length. This
3600 * memory will not be modified, but one should assume that the SSL* keeps a
3601 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3602 * wishes to advertise. Otherwise, no such extension will be included in the
3603 * ServerHello.
3604 */
3605void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx,
3606 SSL_CTX_npn_advertised_cb_func cb,
3607 void *arg)
3608{
3609 if (IS_QUIC_CTX(ctx))
3610 /* NPN not allowed for QUIC */
3611 return;
3612
3613 ctx->ext.npn_advertised_cb = cb;
3614 ctx->ext.npn_advertised_cb_arg = arg;
3615}
3616
3617/*
3618 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3619 * client needs to select a protocol from the server's provided list. |out|
3620 * must be set to point to the selected protocol (which may be within |in|).
3621 * The length of the protocol name must be written into |outlen|. The
3622 * server's advertised protocols are provided in |in| and |inlen|. The
3623 * callback can assume that |in| is syntactically valid. The client must
3624 * select a protocol. It is fatal to the connection if this callback returns
3625 * a value other than SSL_TLSEXT_ERR_OK.
3626 */
3627void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx,
3628 SSL_CTX_npn_select_cb_func cb,
3629 void *arg)
3630{
3631 if (IS_QUIC_CTX(ctx))
3632 /* NPN not allowed for QUIC */
3633 return;
3634
3635 ctx->ext.npn_select_cb = cb;
3636 ctx->ext.npn_select_cb_arg = arg;
3637}
3638#endif
3639
3640static int alpn_value_ok(const unsigned char *protos, unsigned int protos_len)
3641{
3642 unsigned int idx;
3643
3644 if (protos_len < 2 || protos == NULL)
3645 return 0;
3646
3647 for (idx = 0; idx < protos_len; idx += protos[idx] + 1) {
3648 if (protos[idx] == 0)
3649 return 0;
3650 }
3651 return idx == protos_len;
3652}
3653/*
3654 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3655 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3656 * length-prefixed strings). Returns 0 on success.
3657 */
3658int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
3659 unsigned int protos_len)
3660{
3661 unsigned char *alpn;
3662
3663 if (protos_len == 0 || protos == NULL) {
3664 OPENSSL_free(ctx->ext.alpn);
3665 ctx->ext.alpn = NULL;
3666 ctx->ext.alpn_len = 0;
3667 return 0;
3668 }
3669 /* Not valid per RFC */
3670 if (!alpn_value_ok(protos, protos_len))
3671 return 1;
3672
3673 alpn = OPENSSL_memdup(protos, protos_len);
3674 if (alpn == NULL)
3675 return 1;
3676 OPENSSL_free(ctx->ext.alpn);
3677 ctx->ext.alpn = alpn;
3678 ctx->ext.alpn_len = protos_len;
3679
3680 return 0;
3681}
3682
3683/*
3684 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3685 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3686 * length-prefixed strings). Returns 0 on success.
3687 */
3688int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
3689 unsigned int protos_len)
3690{
3691 unsigned char *alpn;
3692 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
3693
3694 if (sc == NULL)
3695 return 1;
3696
3697 if (protos_len == 0 || protos == NULL) {
3698 OPENSSL_free(sc->ext.alpn);
3699 sc->ext.alpn = NULL;
3700 sc->ext.alpn_len = 0;
3701 return 0;
3702 }
3703 /* Not valid per RFC */
3704 if (!alpn_value_ok(protos, protos_len))
3705 return 1;
3706
3707 alpn = OPENSSL_memdup(protos, protos_len);
3708 if (alpn == NULL)
3709 return 1;
3710 OPENSSL_free(sc->ext.alpn);
3711 sc->ext.alpn = alpn;
3712 sc->ext.alpn_len = protos_len;
3713
3714 return 0;
3715}
3716
3717/*
3718 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3719 * called during ClientHello processing in order to select an ALPN protocol
3720 * from the client's list of offered protocols.
3721 */
3722void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
3723 SSL_CTX_alpn_select_cb_func cb,
3724 void *arg)
3725{
3726 ctx->ext.alpn_select_cb = cb;
3727 ctx->ext.alpn_select_cb_arg = arg;
3728}
3729
3730/*
3731 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3732 * On return it sets |*data| to point to |*len| bytes of protocol name
3733 * (not including the leading length-prefix byte). If the server didn't
3734 * respond with a negotiated protocol then |*len| will be zero.
3735 */
3736void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
3737 unsigned int *len)
3738{
3739 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
3740
3741 if (sc == NULL) {
3742 /* We have no other way to indicate error */
3743 *data = NULL;
3744 *len = 0;
3745 return;
3746 }
3747
3748 *data = sc->s3.alpn_selected;
3749 if (*data == NULL)
3750 *len = 0;
3751 else
3752 *len = (unsigned int)sc->s3.alpn_selected_len;
3753}
3754
3755int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
3756 const char *label, size_t llen,
3757 const unsigned char *context, size_t contextlen,
3758 int use_context)
3759{
3760 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3761
3762 if (sc == NULL)
3763 return -1;
3764
3765 if (sc->session == NULL
3766 || (sc->version < TLS1_VERSION && sc->version != DTLS1_BAD_VER))
3767 return -1;
3768
3769 return sc->ssl.method->ssl3_enc->export_keying_material(sc, out, olen, label,
3770 llen, context,
3771 contextlen,
3772 use_context);
3773}
3774
3775int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen,
3776 const char *label, size_t llen,
3777 const unsigned char *context,
3778 size_t contextlen)
3779{
3780 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
3781
3782 if (sc == NULL)
3783 return -1;
3784
3785 if (sc->version != TLS1_3_VERSION)
3786 return 0;
3787
3788 return tls13_export_keying_material_early(sc, out, olen, label, llen,
3789 context, contextlen);
3790}
3791
3792static unsigned long ssl_session_hash(const SSL_SESSION *a)
3793{
3794 const unsigned char *session_id = a->session_id;
3795 unsigned long l;
3796 unsigned char tmp_storage[4];
3797
3798 if (a->session_id_length < sizeof(tmp_storage)) {
3799 memset(tmp_storage, 0, sizeof(tmp_storage));
3800 memcpy(tmp_storage, a->session_id, a->session_id_length);
3801 session_id = tmp_storage;
3802 }
3803
3804 l = (unsigned long)
3805 ((unsigned long)session_id[0]) |
3806 ((unsigned long)session_id[1] << 8L) |
3807 ((unsigned long)session_id[2] << 16L) |
3808 ((unsigned long)session_id[3] << 24L);
3809 return l;
3810}
3811
3812/*
3813 * NB: If this function (or indeed the hash function which uses a sort of
3814 * coarser function than this one) is changed, ensure
3815 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3816 * being able to construct an SSL_SESSION that will collide with any existing
3817 * session with a matching session ID.
3818 */
3819static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
3820{
3821 if (a->ssl_version != b->ssl_version)
3822 return 1;
3823 if (a->session_id_length != b->session_id_length)
3824 return 1;
3825 return memcmp(a->session_id, b->session_id, a->session_id_length);
3826}
3827
3828/*
3829 * These wrapper functions should remain rather than redeclaring
3830 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3831 * variable. The reason is that the functions aren't static, they're exposed
3832 * via ssl.h.
3833 */
3834
3835SSL_CTX *SSL_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq,
3836 const SSL_METHOD *meth)
3837{
3838 SSL_CTX *ret = NULL;
3839#ifndef OPENSSL_NO_COMP_ALG
3840 int i;
3841#endif
3842
3843 if (meth == NULL) {
3844 ERR_raise(ERR_LIB_SSL, SSL_R_NULL_SSL_METHOD_PASSED);
3845 return NULL;
3846 }
3847
3848 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))
3849 return NULL;
3850
3851 /* Doing this for the run once effect */
3852 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3853 ERR_raise(ERR_LIB_SSL, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
3854 goto err;
3855 }
3856
3857 ret = OPENSSL_zalloc(sizeof(*ret));
3858 if (ret == NULL)
3859 return NULL;
3860
3861 /* Init the reference counting before any call to SSL_CTX_free */
3862 if (!CRYPTO_NEW_REF(&ret->references, 1)) {
3863 OPENSSL_free(ret);
3864 return NULL;
3865 }
3866
3867 ret->lock = CRYPTO_THREAD_lock_new();
3868 if (ret->lock == NULL) {
3869 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3870 goto err;
3871 }
3872
3873#ifdef TSAN_REQUIRES_LOCKING
3874 ret->tsan_lock = CRYPTO_THREAD_lock_new();
3875 if (ret->tsan_lock == NULL) {
3876 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3877 goto err;
3878 }
3879#endif
3880
3881 ret->libctx = libctx;
3882 if (propq != NULL) {
3883 ret->propq = OPENSSL_strdup(propq);
3884 if (ret->propq == NULL)
3885 goto err;
3886 }
3887
3888 ret->method = meth;
3889 ret->min_proto_version = 0;
3890 ret->max_proto_version = 0;
3891 ret->mode = SSL_MODE_AUTO_RETRY;
3892 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
3893 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
3894 /* We take the system default. */
3895 ret->session_timeout = meth->get_timeout();
3896 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
3897 ret->verify_mode = SSL_VERIFY_NONE;
3898
3899 ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);
3900 if (ret->sessions == NULL) {
3901 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3902 goto err;
3903 }
3904 ret->cert_store = X509_STORE_new();
3905 if (ret->cert_store == NULL) {
3906 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3907 goto err;
3908 }
3909#ifndef OPENSSL_NO_CT
3910 ret->ctlog_store = CTLOG_STORE_new_ex(libctx, propq);
3911 if (ret->ctlog_store == NULL) {
3912 ERR_raise(ERR_LIB_SSL, ERR_R_CT_LIB);
3913 goto err;
3914 }
3915#endif
3916
3917 /* initialize cipher/digest methods table */
3918 if (!ssl_load_ciphers(ret)) {
3919 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3920 goto err;
3921 }
3922
3923 if (!ssl_load_groups(ret)) {
3924 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3925 goto err;
3926 }
3927
3928 /* load provider sigalgs */
3929 if (!ssl_load_sigalgs(ret)) {
3930 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3931 goto err;
3932 }
3933
3934 /* initialise sig algs */
3935 if (!ssl_setup_sigalgs(ret)) {
3936 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3937 goto err;
3938 }
3939
3940 if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) {
3941 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3942 goto err;
3943 }
3944
3945 if ((ret->cert = ssl_cert_new(SSL_PKEY_NUM + ret->sigalg_list_len)) == NULL) {
3946 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
3947 goto err;
3948 }
3949
3950 if (!ssl_create_cipher_list(ret,
3951 ret->tls13_ciphersuites,
3952 &ret->cipher_list, &ret->cipher_list_by_id,
3953 OSSL_default_cipher_list(), ret->cert)
3954 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
3955 ERR_raise(ERR_LIB_SSL, SSL_R_LIBRARY_HAS_NO_CIPHERS);
3956 goto err;
3957 }
3958
3959 ret->param = X509_VERIFY_PARAM_new();
3960 if (ret->param == NULL) {
3961 ERR_raise(ERR_LIB_SSL, ERR_R_X509_LIB);
3962 goto err;
3963 }
3964
3965 /*
3966 * If these aren't available from the provider we'll get NULL returns.
3967 * That's fine but will cause errors later if SSLv3 is negotiated
3968 */
3969 ret->md5 = ssl_evp_md_fetch(libctx, NID_md5, propq);
3970 ret->sha1 = ssl_evp_md_fetch(libctx, NID_sha1, propq);
3971
3972 if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) {
3973 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3974 goto err;
3975 }
3976
3977 if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) {
3978 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3979 goto err;
3980 }
3981
3982 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) {
3983 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
3984 goto err;
3985 }
3986
3987 if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL)
3988 goto err;
3989
3990 /* No compression for DTLS */
3991 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
3992 ret->comp_methods = SSL_COMP_get_compression_methods();
3993
3994 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3995 ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
3996
3997 /* Setup RFC5077 ticket keys */
3998 if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name,
3999 sizeof(ret->ext.tick_key_name), 0) <= 0)
4000 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key,
4001 sizeof(ret->ext.secure->tick_hmac_key), 0) <= 0)
4002 || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key,
4003 sizeof(ret->ext.secure->tick_aes_key), 0) <= 0))
4004 ret->options |= SSL_OP_NO_TICKET;
4005
4006 if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key,
4007 sizeof(ret->ext.cookie_hmac_key), 0) <= 0) {
4008 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB);
4009 goto err;
4010 }
4011
4012#ifndef OPENSSL_NO_SRP
4013 if (!ssl_ctx_srp_ctx_init_intern(ret)) {
4014 ERR_raise(ERR_LIB_SSL, ERR_R_SSL_LIB);
4015 goto err;
4016 }
4017#endif
4018#ifndef OPENSSL_NO_ENGINE
4019# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
4020# define eng_strx(x) #x
4021# define eng_str(x) eng_strx(x)
4022 /* Use specific client engine automatically... ignore errors */
4023 {
4024 ENGINE *eng;
4025 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4026 if (!eng) {
4027 ERR_clear_error();
4028 ENGINE_load_builtin_engines();
4029 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
4030 }
4031 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
4032 ERR_clear_error();
4033 }
4034# endif
4035#endif
4036
4037#ifndef OPENSSL_NO_COMP_ALG
4038 /*
4039 * Set the default order: brotli, zlib, zstd
4040 * Including only those enabled algorithms
4041 */
4042 memset(ret->cert_comp_prefs, 0, sizeof(ret->cert_comp_prefs));
4043 i = 0;
4044 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli))
4045 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_brotli;
4046 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib))
4047 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zlib;
4048 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd))
4049 ret->cert_comp_prefs[i++] = TLSEXT_comp_cert_zstd;
4050#endif
4051 /*
4052 * Disable compression by default to prevent CRIME. Applications can
4053 * re-enable compression by configuring
4054 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
4055 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4056 * middlebox compatibility by default. This may be disabled by default in
4057 * a later OpenSSL version.
4058 */
4059 ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT;
4060
4061 ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;
4062
4063 /*
4064 * We cannot usefully set a default max_early_data here (which gets
4065 * propagated in SSL_new(), for the following reason: setting the
4066 * SSL field causes tls_construct_stoc_early_data() to tell the
4067 * client that early data will be accepted when constructing a TLS 1.3
4068 * session ticket, and the client will accordingly send us early data
4069 * when using that ticket (if the client has early data to send).
4070 * However, in order for the early data to actually be consumed by
4071 * the application, the application must also have calls to
4072 * SSL_read_early_data(); otherwise we'll just skip past the early data
4073 * and ignore it. So, since the application must add calls to
4074 * SSL_read_early_data(), we also require them to add
4075 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4076 * eliminating the bandwidth-wasting early data in the case described
4077 * above.
4078 */
4079 ret->max_early_data = 0;
4080
4081 /*
4082 * Default recv_max_early_data is a fully loaded single record. Could be
4083 * split across multiple records in practice. We set this differently to
4084 * max_early_data so that, in the default case, we do not advertise any
4085 * support for early_data, but if a client were to send us some (e.g.
4086 * because of an old, stale ticket) then we will tolerate it and skip over
4087 * it.
4088 */
4089 ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;
4090
4091 /* By default we send two session tickets automatically in TLSv1.3 */
4092 ret->num_tickets = 2;
4093
4094 ssl_ctx_system_config(ret);
4095
4096 return ret;
4097 err:
4098 SSL_CTX_free(ret);
4099 return NULL;
4100}
4101
4102SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
4103{
4104 return SSL_CTX_new_ex(NULL, NULL, meth);
4105}
4106
4107int SSL_CTX_up_ref(SSL_CTX *ctx)
4108{
4109 int i;
4110
4111 if (CRYPTO_UP_REF(&ctx->references, &i) <= 0)
4112 return 0;
4113
4114 REF_PRINT_COUNT("SSL_CTX", ctx);
4115 REF_ASSERT_ISNT(i < 2);
4116 return ((i > 1) ? 1 : 0);
4117}
4118
4119void SSL_CTX_free(SSL_CTX *a)
4120{
4121 int i;
4122 size_t j;
4123
4124 if (a == NULL)
4125 return;
4126
4127 CRYPTO_DOWN_REF(&a->references, &i);
4128 REF_PRINT_COUNT("SSL_CTX", a);
4129 if (i > 0)
4130 return;
4131 REF_ASSERT_ISNT(i < 0);
4132
4133 X509_VERIFY_PARAM_free(a->param);
4134 dane_ctx_final(&a->dane);
4135
4136 /*
4137 * Free internal session cache. However: the remove_cb() may reference
4138 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4139 * after the sessions were flushed.
4140 * As the ex_data handling routines might also touch the session cache,
4141 * the most secure solution seems to be: empty (flush) the cache, then
4142 * free ex_data, then finally free the cache.
4143 * (See ticket [openssl.org #212].)
4144 */
4145 if (a->sessions != NULL)
4146 SSL_CTX_flush_sessions(a, 0);
4147
4148 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
4149 lh_SSL_SESSION_free(a->sessions);
4150 X509_STORE_free(a->cert_store);
4151#ifndef OPENSSL_NO_CT
4152 CTLOG_STORE_free(a->ctlog_store);
4153#endif
4154 sk_SSL_CIPHER_free(a->cipher_list);
4155 sk_SSL_CIPHER_free(a->cipher_list_by_id);
4156 sk_SSL_CIPHER_free(a->tls13_ciphersuites);
4157 ssl_cert_free(a->cert);
4158 sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);
4159 sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free);
4160 OSSL_STACK_OF_X509_free(a->extra_certs);
4161 a->comp_methods = NULL;
4162#ifndef OPENSSL_NO_SRTP
4163 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
4164#endif
4165#ifndef OPENSSL_NO_SRP
4166 ssl_ctx_srp_ctx_free_intern(a);
4167#endif
4168#ifndef OPENSSL_NO_ENGINE
4169 tls_engine_finish(a->client_cert_engine);
4170#endif
4171
4172 OPENSSL_free(a->ext.ecpointformats);
4173 OPENSSL_free(a->ext.supportedgroups);
4174 OPENSSL_free(a->ext.supported_groups_default);
4175 OPENSSL_free(a->ext.alpn);
4176 OPENSSL_secure_free(a->ext.secure);
4177
4178 ssl_evp_md_free(a->md5);
4179 ssl_evp_md_free(a->sha1);
4180
4181 for (j = 0; j < SSL_ENC_NUM_IDX; j++)
4182 ssl_evp_cipher_free(a->ssl_cipher_methods[j]);
4183 for (j = 0; j < SSL_MD_NUM_IDX; j++)
4184 ssl_evp_md_free(a->ssl_digest_methods[j]);
4185 for (j = 0; j < a->group_list_len; j++) {
4186 OPENSSL_free(a->group_list[j].tlsname);
4187 OPENSSL_free(a->group_list[j].realname);
4188 OPENSSL_free(a->group_list[j].algorithm);
4189 }
4190 OPENSSL_free(a->group_list);
4191 for (j = 0; j < a->sigalg_list_len; j++) {
4192 OPENSSL_free(a->sigalg_list[j].name);
4193 OPENSSL_free(a->sigalg_list[j].sigalg_name);
4194 OPENSSL_free(a->sigalg_list[j].sigalg_oid);
4195 OPENSSL_free(a->sigalg_list[j].sig_name);
4196 OPENSSL_free(a->sigalg_list[j].sig_oid);
4197 OPENSSL_free(a->sigalg_list[j].hash_name);
4198 OPENSSL_free(a->sigalg_list[j].hash_oid);
4199 OPENSSL_free(a->sigalg_list[j].keytype);
4200 OPENSSL_free(a->sigalg_list[j].keytype_oid);
4201 }
4202 OPENSSL_free(a->sigalg_list);
4203 OPENSSL_free(a->ssl_cert_info);
4204
4205 OPENSSL_free(a->sigalg_lookup_cache);
4206 OPENSSL_free(a->tls12_sigalgs);
4207
4208 OPENSSL_free(a->client_cert_type);
4209 OPENSSL_free(a->server_cert_type);
4210
4211 CRYPTO_THREAD_lock_free(a->lock);
4212 CRYPTO_FREE_REF(&a->references);
4213#ifdef TSAN_REQUIRES_LOCKING
4214 CRYPTO_THREAD_lock_free(a->tsan_lock);
4215#endif
4216
4217 OPENSSL_free(a->propq);
4218#ifndef OPENSSL_NO_QLOG
4219 OPENSSL_free(a->qlog_title);
4220#endif
4221
4222 OPENSSL_free(a);
4223}
4224
4225void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
4226{
4227 ctx->default_passwd_callback = cb;
4228}
4229
4230void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
4231{
4232 ctx->default_passwd_callback_userdata = u;
4233}
4234
4235pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
4236{
4237 return ctx->default_passwd_callback;
4238}
4239
4240void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
4241{
4242 return ctx->default_passwd_callback_userdata;
4243}
4244
4245void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
4246{
4247 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4248
4249 if (sc == NULL)
4250 return;
4251
4252 sc->default_passwd_callback = cb;
4253}
4254
4255void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
4256{
4257 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4258
4259 if (sc == NULL)
4260 return;
4261
4262 sc->default_passwd_callback_userdata = u;
4263}
4264
4265pem_password_cb *SSL_get_default_passwd_cb(SSL *s)
4266{
4267 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4268
4269 if (sc == NULL)
4270 return NULL;
4271
4272 return sc->default_passwd_callback;
4273}
4274
4275void *SSL_get_default_passwd_cb_userdata(SSL *s)
4276{
4277 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4278
4279 if (sc == NULL)
4280 return NULL;
4281
4282 return sc->default_passwd_callback_userdata;
4283}
4284
4285void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
4286 int (*cb) (X509_STORE_CTX *, void *),
4287 void *arg)
4288{
4289 ctx->app_verify_callback = cb;
4290 ctx->app_verify_arg = arg;
4291}
4292
4293void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
4294 int (*cb) (int, X509_STORE_CTX *))
4295{
4296 ctx->verify_mode = mode;
4297 ctx->default_verify_callback = cb;
4298}
4299
4300void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
4301{
4302 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
4303}
4304
4305void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg)
4306{
4307 ssl_cert_set_cert_cb(c->cert, cb, arg);
4308}
4309
4310void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
4311{
4312 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4313
4314 if (sc == NULL)
4315 return;
4316
4317 ssl_cert_set_cert_cb(sc->cert, cb, arg);
4318}
4319
4320void ssl_set_masks(SSL_CONNECTION *s)
4321{
4322 CERT *c = s->cert;
4323 uint32_t *pvalid = s->s3.tmp.valid_flags;
4324 int rsa_enc, rsa_sign, dh_tmp, dsa_sign;
4325 unsigned long mask_k, mask_a;
4326 int have_ecc_cert, ecdsa_ok;
4327
4328 if (c == NULL)
4329 return;
4330
4331 dh_tmp = (c->dh_tmp != NULL
4332 || c->dh_tmp_cb != NULL
4333 || c->dh_tmp_auto);
4334
4335 rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4336 rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID;
4337 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID;
4338 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
4339 mask_k = 0;
4340 mask_a = 0;
4341
4342 OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4343 dh_tmp, rsa_enc, rsa_sign, dsa_sign);
4344
4345#ifndef OPENSSL_NO_GOST
4346 if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) {
4347 mask_k |= SSL_kGOST | SSL_kGOST18;
4348 mask_a |= SSL_aGOST12;
4349 }
4350 if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) {
4351 mask_k |= SSL_kGOST | SSL_kGOST18;
4352 mask_a |= SSL_aGOST12;
4353 }
4354 if (ssl_has_cert(s, SSL_PKEY_GOST01)) {
4355 mask_k |= SSL_kGOST;
4356 mask_a |= SSL_aGOST01;
4357 }
4358#endif
4359
4360 if (rsa_enc)
4361 mask_k |= SSL_kRSA;
4362
4363 if (dh_tmp)
4364 mask_k |= SSL_kDHE;
4365
4366 /*
4367 * If we only have an RSA-PSS certificate allow RSA authentication
4368 * if TLS 1.2 and peer supports it.
4369 */
4370
4371 if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN)
4372 && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN
4373 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION))
4374 mask_a |= SSL_aRSA;
4375
4376 if (dsa_sign) {
4377 mask_a |= SSL_aDSS;
4378 }
4379
4380 mask_a |= SSL_aNULL;
4381
4382 /*
4383 * You can do anything with an RPK key, since there's no cert to restrict it
4384 * But we need to check for private keys
4385 */
4386 if (pvalid[SSL_PKEY_RSA] & CERT_PKEY_RPK) {
4387 mask_a |= SSL_aRSA;
4388 mask_k |= SSL_kRSA;
4389 }
4390 if (pvalid[SSL_PKEY_ECC] & CERT_PKEY_RPK)
4391 mask_a |= SSL_aECDSA;
4392 if (TLS1_get_version(&s->ssl) == TLS1_2_VERSION) {
4393 if (pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_RPK)
4394 mask_a |= SSL_aRSA;
4395 if (pvalid[SSL_PKEY_ED25519] & CERT_PKEY_RPK
4396 || pvalid[SSL_PKEY_ED448] & CERT_PKEY_RPK)
4397 mask_a |= SSL_aECDSA;
4398 }
4399
4400 /*
4401 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4402 * depending on the key usage extension.
4403 */
4404 if (have_ecc_cert) {
4405 uint32_t ex_kusage;
4406 ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509);
4407 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
4408 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
4409 ecdsa_ok = 0;
4410 if (ecdsa_ok)
4411 mask_a |= SSL_aECDSA;
4412 }
4413 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4414 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519)
4415 && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN
4416 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4417 mask_a |= SSL_aECDSA;
4418
4419 /* Allow Ed448 for TLS 1.2 if peer supports it */
4420 if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448)
4421 && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN
4422 && TLS1_get_version(&s->ssl) == TLS1_2_VERSION)
4423 mask_a |= SSL_aECDSA;
4424
4425 mask_k |= SSL_kECDHE;
4426
4427#ifndef OPENSSL_NO_PSK
4428 mask_k |= SSL_kPSK;
4429 mask_a |= SSL_aPSK;
4430 if (mask_k & SSL_kRSA)
4431 mask_k |= SSL_kRSAPSK;
4432 if (mask_k & SSL_kDHE)
4433 mask_k |= SSL_kDHEPSK;
4434 if (mask_k & SSL_kECDHE)
4435 mask_k |= SSL_kECDHEPSK;
4436#endif
4437
4438 s->s3.tmp.mask_k = mask_k;
4439 s->s3.tmp.mask_a = mask_a;
4440}
4441
4442int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s)
4443{
4444 if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) {
4445 /* key usage, if present, must allow signing */
4446 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
4447 ERR_raise(ERR_LIB_SSL, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
4448 return 0;
4449 }
4450 }
4451 return 1; /* all checks are ok */
4452}
4453
4454int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
4455 const unsigned char **serverinfo,
4456 size_t *serverinfo_length)
4457{
4458 CERT_PKEY *cpk = s->s3.tmp.cert;
4459 *serverinfo_length = 0;
4460
4461 if (cpk == NULL || cpk->serverinfo == NULL)
4462 return 0;
4463
4464 *serverinfo = cpk->serverinfo;
4465 *serverinfo_length = cpk->serverinfo_length;
4466 return 1;
4467}
4468
4469void ssl_update_cache(SSL_CONNECTION *s, int mode)
4470{
4471 int i;
4472
4473 /*
4474 * If the session_id_length is 0, we are not supposed to cache it, and it
4475 * would be rather hard to do anyway :-). Also if the session has already
4476 * been marked as not_resumable we should not cache it for later reuse.
4477 */
4478 if (s->session->session_id_length == 0 || s->session->not_resumable)
4479 return;
4480
4481 /*
4482 * If sid_ctx_length is 0 there is no specific application context
4483 * associated with this session, so when we try to resume it and
4484 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4485 * indication that this is actually a session for the proper application
4486 * context, and the *handshake* will fail, not just the resumption attempt.
4487 * Do not cache (on the server) these sessions that are not resumable
4488 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4489 */
4490 if (s->server && s->session->sid_ctx_length == 0
4491 && (s->verify_mode & SSL_VERIFY_PEER) != 0)
4492 return;
4493
4494 i = s->session_ctx->session_cache_mode;
4495 if ((i & mode) != 0
4496 && (!s->hit || SSL_CONNECTION_IS_TLS13(s))) {
4497 /*
4498 * Add the session to the internal cache. In server side TLSv1.3 we
4499 * normally don't do this because by default it's a full stateless ticket
4500 * with only a dummy session id so there is no reason to cache it,
4501 * unless:
4502 * - we are doing early_data, in which case we cache so that we can
4503 * detect replays
4504 * - the application has set a remove_session_cb so needs to know about
4505 * session timeout events
4506 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4507 */
4508 if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0
4509 && (!SSL_CONNECTION_IS_TLS13(s)
4510 || !s->server
4511 || (s->max_early_data > 0
4512 && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0)
4513 || s->session_ctx->remove_session_cb != NULL
4514 || (s->options & SSL_OP_NO_TICKET) != 0))
4515 SSL_CTX_add_session(s->session_ctx, s->session);
4516
4517 /*
4518 * Add the session to the external cache. We do this even in server side
4519 * TLSv1.3 without early data because some applications just want to
4520 * know about the creation of a session and aren't doing a full cache.
4521 */
4522 if (s->session_ctx->new_session_cb != NULL) {
4523 SSL_SESSION_up_ref(s->session);
4524 if (!s->session_ctx->new_session_cb(SSL_CONNECTION_GET_SSL(s),
4525 s->session))
4526 SSL_SESSION_free(s->session);
4527 }
4528 }
4529
4530 /* auto flush every 255 connections */
4531 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
4532 TSAN_QUALIFIER int *stat;
4533
4534 if (mode & SSL_SESS_CACHE_CLIENT)
4535 stat = &s->session_ctx->stats.sess_connect_good;
4536 else
4537 stat = &s->session_ctx->stats.sess_accept_good;
4538 if ((ssl_tsan_load(s->session_ctx, stat) & 0xff) == 0xff)
4539 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
4540 }
4541}
4542
4543const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
4544{
4545 return ctx->method;
4546}
4547
4548const SSL_METHOD *SSL_get_ssl_method(const SSL *s)
4549{
4550 return s->method;
4551}
4552
4553int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
4554{
4555 int ret = 1;
4556 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4557
4558 /* Not allowed for QUIC */
4559 if (sc == NULL
4560 || (s->type != SSL_TYPE_SSL_CONNECTION && s->method != meth)
4561 || (s->type == SSL_TYPE_SSL_CONNECTION && IS_QUIC_METHOD(meth)))
4562 return 0;
4563
4564 if (s->method != meth) {
4565 const SSL_METHOD *sm = s->method;
4566 int (*hf) (SSL *) = sc->handshake_func;
4567
4568 if (sm->version == meth->version)
4569 s->method = meth;
4570 else {
4571 sm->ssl_deinit(s);
4572 s->method = meth;
4573 ret = s->method->ssl_init(s);
4574 }
4575
4576 if (hf == sm->ssl_connect)
4577 sc->handshake_func = meth->ssl_connect;
4578 else if (hf == sm->ssl_accept)
4579 sc->handshake_func = meth->ssl_accept;
4580 }
4581 return ret;
4582}
4583
4584int SSL_get_error(const SSL *s, int i)
4585{
4586 return ossl_ssl_get_error(s, i, /*check_err=*/1);
4587}
4588
4589int ossl_ssl_get_error(const SSL *s, int i, int check_err)
4590{
4591 int reason;
4592 unsigned long l;
4593 BIO *bio;
4594 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4595
4596 if (i > 0)
4597 return SSL_ERROR_NONE;
4598
4599#ifndef OPENSSL_NO_QUIC
4600 if (IS_QUIC(s)) {
4601 reason = ossl_quic_get_error(s, i);
4602 if (reason != SSL_ERROR_NONE)
4603 return reason;
4604 }
4605#endif
4606
4607 if (sc == NULL)
4608 return SSL_ERROR_SSL;
4609
4610 /*
4611 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4612 * where we do encode the error
4613 */
4614 if (check_err && (l = ERR_peek_error()) != 0) {
4615 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
4616 return SSL_ERROR_SYSCALL;
4617 else
4618 return SSL_ERROR_SSL;
4619 }
4620
4621#ifndef OPENSSL_NO_QUIC
4622 if (!IS_QUIC(s))
4623#endif
4624 {
4625 if (SSL_want_read(s)) {
4626 bio = SSL_get_rbio(s);
4627 if (BIO_should_read(bio))
4628 return SSL_ERROR_WANT_READ;
4629 else if (BIO_should_write(bio))
4630 /*
4631 * This one doesn't make too much sense ... We never try to
4632 * write to the rbio, and an application program where rbio and
4633 * wbio are separate couldn't even know what it should wait for.
4634 * However if we ever set s->rwstate incorrectly (so that we
4635 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4636 * and wbio *are* the same, this test works around that bug; so
4637 * it might be safer to keep it.
4638 */
4639 return SSL_ERROR_WANT_WRITE;
4640 else if (BIO_should_io_special(bio)) {
4641 reason = BIO_get_retry_reason(bio);
4642 if (reason == BIO_RR_CONNECT)
4643 return SSL_ERROR_WANT_CONNECT;
4644 else if (reason == BIO_RR_ACCEPT)
4645 return SSL_ERROR_WANT_ACCEPT;
4646 else
4647 return SSL_ERROR_SYSCALL; /* unknown */
4648 }
4649 }
4650
4651 if (SSL_want_write(s)) {
4652 /*
4653 * Access wbio directly - in order to use the buffered bio if
4654 * present
4655 */
4656 bio = sc->wbio;
4657 if (BIO_should_write(bio))
4658 return SSL_ERROR_WANT_WRITE;
4659 else if (BIO_should_read(bio))
4660 /*
4661 * See above (SSL_want_read(s) with BIO_should_write(bio))
4662 */
4663 return SSL_ERROR_WANT_READ;
4664 else if (BIO_should_io_special(bio)) {
4665 reason = BIO_get_retry_reason(bio);
4666 if (reason == BIO_RR_CONNECT)
4667 return SSL_ERROR_WANT_CONNECT;
4668 else if (reason == BIO_RR_ACCEPT)
4669 return SSL_ERROR_WANT_ACCEPT;
4670 else
4671 return SSL_ERROR_SYSCALL;
4672 }
4673 }
4674 }
4675
4676 if (SSL_want_x509_lookup(s))
4677 return SSL_ERROR_WANT_X509_LOOKUP;
4678 if (SSL_want_retry_verify(s))
4679 return SSL_ERROR_WANT_RETRY_VERIFY;
4680 if (SSL_want_async(s))
4681 return SSL_ERROR_WANT_ASYNC;
4682 if (SSL_want_async_job(s))
4683 return SSL_ERROR_WANT_ASYNC_JOB;
4684 if (SSL_want_client_hello_cb(s))
4685 return SSL_ERROR_WANT_CLIENT_HELLO_CB;
4686
4687 if ((sc->shutdown & SSL_RECEIVED_SHUTDOWN) &&
4688 (sc->s3.warn_alert == SSL_AD_CLOSE_NOTIFY))
4689 return SSL_ERROR_ZERO_RETURN;
4690
4691 return SSL_ERROR_SYSCALL;
4692}
4693
4694static int ssl_do_handshake_intern(void *vargs)
4695{
4696 struct ssl_async_args *args = (struct ssl_async_args *)vargs;
4697 SSL *s = args->s;
4698 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4699
4700 if (sc == NULL)
4701 return -1;
4702
4703 return sc->handshake_func(s);
4704}
4705
4706int SSL_do_handshake(SSL *s)
4707{
4708 int ret = 1;
4709 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
4710
4711#ifndef OPENSSL_NO_QUIC
4712 if (IS_QUIC(s))
4713 return ossl_quic_do_handshake(s);
4714#endif
4715
4716 if (sc->handshake_func == NULL) {
4717 ERR_raise(ERR_LIB_SSL, SSL_R_CONNECTION_TYPE_NOT_SET);
4718 return -1;
4719 }
4720
4721 ossl_statem_check_finish_init(sc, -1);
4722
4723 s->method->ssl_renegotiate_check(s, 0);
4724
4725 if (SSL_in_init(s) || SSL_in_before(s)) {
4726 if ((sc->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
4727 struct ssl_async_args args;
4728
4729 memset(&args, 0, sizeof(args));
4730 args.s = s;
4731
4732 ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern);
4733 } else {
4734 ret = sc->handshake_func(s);
4735 }
4736 }
4737 return ret;
4738}
4739
4740void SSL_set_accept_state(SSL *s)
4741{
4742 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4743
4744#ifndef OPENSSL_NO_QUIC
4745 if (IS_QUIC(s)) {
4746 ossl_quic_set_accept_state(s);
4747 return;
4748 }
4749#endif
4750
4751 sc->server = 1;
4752 sc->shutdown = 0;
4753 ossl_statem_clear(sc);
4754 sc->handshake_func = s->method->ssl_accept;
4755 /* Ignore return value. Its a void public API function */
4756 RECORD_LAYER_reset(&sc->rlayer);
4757}
4758
4759void SSL_set_connect_state(SSL *s)
4760{
4761 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4762
4763#ifndef OPENSSL_NO_QUIC
4764 if (IS_QUIC(s)) {
4765 ossl_quic_set_connect_state(s);
4766 return;
4767 }
4768#endif
4769
4770 sc->server = 0;
4771 sc->shutdown = 0;
4772 ossl_statem_clear(sc);
4773 sc->handshake_func = s->method->ssl_connect;
4774 /* Ignore return value. Its a void public API function */
4775 RECORD_LAYER_reset(&sc->rlayer);
4776}
4777
4778int ssl_undefined_function(SSL *s)
4779{
4780 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4781 return 0;
4782}
4783
4784int ssl_undefined_void_function(void)
4785{
4786 ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
4787 return 0;
4788}
4789
4790int ssl_undefined_const_function(const SSL *s)
4791{
4792 return 0;
4793}
4794
4795const char *ssl_protocol_to_string(int version)
4796{
4797 switch (version)
4798 {
4799 case TLS1_3_VERSION:
4800 return "TLSv1.3";
4801
4802 case TLS1_2_VERSION:
4803 return "TLSv1.2";
4804
4805 case TLS1_1_VERSION:
4806 return "TLSv1.1";
4807
4808 case TLS1_VERSION:
4809 return "TLSv1";
4810
4811 case SSL3_VERSION:
4812 return "SSLv3";
4813
4814 case DTLS1_BAD_VER:
4815 return "DTLSv0.9";
4816
4817 case DTLS1_VERSION:
4818 return "DTLSv1";
4819
4820 case DTLS1_2_VERSION:
4821 return "DTLSv1.2";
4822
4823 default:
4824 return "unknown";
4825 }
4826}
4827
4828const char *SSL_get_version(const SSL *s)
4829{
4830 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4831
4832#ifndef OPENSSL_NO_QUIC
4833 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4834 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
4835 return "QUICv1";
4836#endif
4837
4838 if (sc == NULL)
4839 return NULL;
4840
4841 return ssl_protocol_to_string(sc->version);
4842}
4843
4844__owur int SSL_get_handshake_rtt(const SSL *s, uint64_t *rtt)
4845{
4846 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
4847
4848 if (sc == NULL)
4849 return -1;
4850 if (sc->ts_msg_write.t <= 0 || sc->ts_msg_read.t <= 0)
4851 return 0; /* data not (yet) available */
4852 if (sc->ts_msg_read.t < sc->ts_msg_write.t)
4853 return -1;
4854
4855 *rtt = ossl_time2us(ossl_time_subtract(sc->ts_msg_read, sc->ts_msg_write));
4856 return 1;
4857}
4858
4859static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src)
4860{
4861 STACK_OF(X509_NAME) *sk;
4862 X509_NAME *xn;
4863 int i;
4864
4865 if (src == NULL) {
4866 *dst = NULL;
4867 return 1;
4868 }
4869
4870 if ((sk = sk_X509_NAME_new_null()) == NULL)
4871 return 0;
4872 for (i = 0; i < sk_X509_NAME_num(src); i++) {
4873 xn = X509_NAME_dup(sk_X509_NAME_value(src, i));
4874 if (xn == NULL) {
4875 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4876 return 0;
4877 }
4878 if (sk_X509_NAME_insert(sk, xn, i) == 0) {
4879 X509_NAME_free(xn);
4880 sk_X509_NAME_pop_free(sk, X509_NAME_free);
4881 return 0;
4882 }
4883 }
4884 *dst = sk;
4885
4886 return 1;
4887}
4888
4889SSL *SSL_dup(SSL *s)
4890{
4891 SSL *ret;
4892 int i;
4893 /* TODO(QUIC FUTURE): Add a SSL_METHOD function for duplication */
4894 SSL_CONNECTION *retsc;
4895 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
4896
4897 if (sc == NULL)
4898 return NULL;
4899
4900 /* If we're not quiescent, just up_ref! */
4901 if (!SSL_in_init(s) || !SSL_in_before(s)) {
4902 CRYPTO_UP_REF(&s->references, &i);
4903 return s;
4904 }
4905
4906 /*
4907 * Otherwise, copy configuration state, and session if set.
4908 */
4909 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
4910 return NULL;
4911 if ((retsc = SSL_CONNECTION_FROM_SSL_ONLY(ret)) == NULL)
4912 goto err;
4913
4914 if (sc->session != NULL) {
4915 /*
4916 * Arranges to share the same session via up_ref. This "copies"
4917 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4918 */
4919 if (!SSL_copy_session_id(ret, s))
4920 goto err;
4921 } else {
4922 /*
4923 * No session has been established yet, so we have to expect that
4924 * s->cert or ret->cert will be changed later -- they should not both
4925 * point to the same object, and thus we can't use
4926 * SSL_copy_session_id.
4927 */
4928 if (!SSL_set_ssl_method(ret, s->method))
4929 goto err;
4930
4931 if (sc->cert != NULL) {
4932 ssl_cert_free(retsc->cert);
4933 retsc->cert = ssl_cert_dup(sc->cert);
4934 if (retsc->cert == NULL)
4935 goto err;
4936 }
4937
4938 if (!SSL_set_session_id_context(ret, sc->sid_ctx,
4939 (int)sc->sid_ctx_length))
4940 goto err;
4941 }
4942
4943 if (!ssl_dane_dup(retsc, sc))
4944 goto err;
4945 retsc->version = sc->version;
4946 retsc->options = sc->options;
4947 retsc->min_proto_version = sc->min_proto_version;
4948 retsc->max_proto_version = sc->max_proto_version;
4949 retsc->mode = sc->mode;
4950 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
4951 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
4952 retsc->msg_callback = sc->msg_callback;
4953 retsc->msg_callback_arg = sc->msg_callback_arg;
4954 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
4955 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
4956 retsc->generate_session_id = sc->generate_session_id;
4957
4958 SSL_set_info_callback(ret, SSL_get_info_callback(s));
4959
4960 /* copy app data, a little dangerous perhaps */
4961 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
4962 goto err;
4963
4964 retsc->server = sc->server;
4965 if (sc->handshake_func) {
4966 if (sc->server)
4967 SSL_set_accept_state(ret);
4968 else
4969 SSL_set_connect_state(ret);
4970 }
4971 retsc->shutdown = sc->shutdown;
4972 retsc->hit = sc->hit;
4973
4974 retsc->default_passwd_callback = sc->default_passwd_callback;
4975 retsc->default_passwd_callback_userdata = sc->default_passwd_callback_userdata;
4976
4977 X509_VERIFY_PARAM_inherit(retsc->param, sc->param);
4978
4979 /* dup the cipher_list and cipher_list_by_id stacks */
4980 if (sc->cipher_list != NULL) {
4981 if ((retsc->cipher_list = sk_SSL_CIPHER_dup(sc->cipher_list)) == NULL)
4982 goto err;
4983 }
4984 if (sc->cipher_list_by_id != NULL)
4985 if ((retsc->cipher_list_by_id = sk_SSL_CIPHER_dup(sc->cipher_list_by_id))
4986 == NULL)
4987 goto err;
4988
4989 /* Dup the client_CA list */
4990 if (!dup_ca_names(&retsc->ca_names, sc->ca_names)
4991 || !dup_ca_names(&retsc->client_ca_names, sc->client_ca_names))
4992 goto err;
4993
4994 return ret;
4995
4996 err:
4997 SSL_free(ret);
4998 return NULL;
4999}
5000
5001X509 *SSL_get_certificate(const SSL *s)
5002{
5003 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5004
5005 if (sc == NULL)
5006 return NULL;
5007
5008 if (sc->cert != NULL)
5009 return sc->cert->key->x509;
5010 else
5011 return NULL;
5012}
5013
5014EVP_PKEY *SSL_get_privatekey(const SSL *s)
5015{
5016 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5017
5018 if (sc == NULL)
5019 return NULL;
5020
5021 if (sc->cert != NULL)
5022 return sc->cert->key->privatekey;
5023 else
5024 return NULL;
5025}
5026
5027X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
5028{
5029 if (ctx->cert != NULL)
5030 return ctx->cert->key->x509;
5031 else
5032 return NULL;
5033}
5034
5035EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
5036{
5037 if (ctx->cert != NULL)
5038 return ctx->cert->key->privatekey;
5039 else
5040 return NULL;
5041}
5042
5043const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
5044{
5045 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5046
5047 if (sc == NULL)
5048 return NULL;
5049
5050 if ((sc->session != NULL) && (sc->session->cipher != NULL))
5051 return sc->session->cipher;
5052 return NULL;
5053}
5054
5055const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s)
5056{
5057 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5058
5059 if (sc == NULL)
5060 return NULL;
5061
5062 return sc->s3.tmp.new_cipher;
5063}
5064
5065const COMP_METHOD *SSL_get_current_compression(const SSL *s)
5066{
5067#ifndef OPENSSL_NO_COMP
5068 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5069
5070 if (sc == NULL)
5071 return NULL;
5072
5073 return sc->rlayer.wrlmethod->get_compression(sc->rlayer.wrl);
5074#else
5075 return NULL;
5076#endif
5077}
5078
5079const COMP_METHOD *SSL_get_current_expansion(const SSL *s)
5080{
5081#ifndef OPENSSL_NO_COMP
5082 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5083
5084 if (sc == NULL)
5085 return NULL;
5086
5087 return sc->rlayer.rrlmethod->get_compression(sc->rlayer.rrl);
5088#else
5089 return NULL;
5090#endif
5091}
5092
5093int ssl_init_wbio_buffer(SSL_CONNECTION *s)
5094{
5095 BIO *bbio;
5096
5097 if (s->bbio != NULL) {
5098 /* Already buffered. */
5099 return 1;
5100 }
5101
5102 bbio = BIO_new(BIO_f_buffer());
5103 if (bbio == NULL || BIO_set_read_buffer_size(bbio, 1) <= 0) {
5104 BIO_free(bbio);
5105 ERR_raise(ERR_LIB_SSL, ERR_R_BUF_LIB);
5106 return 0;
5107 }
5108 s->bbio = bbio;
5109 s->wbio = BIO_push(bbio, s->wbio);
5110
5111 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5112
5113 return 1;
5114}
5115
5116int ssl_free_wbio_buffer(SSL_CONNECTION *s)
5117{
5118 /* callers ensure s is never null */
5119 if (s->bbio == NULL)
5120 return 1;
5121
5122 s->wbio = BIO_pop(s->wbio);
5123 s->rlayer.wrlmethod->set1_bio(s->rlayer.wrl, s->wbio);
5124
5125 BIO_free(s->bbio);
5126 s->bbio = NULL;
5127
5128 return 1;
5129}
5130
5131void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
5132{
5133 ctx->quiet_shutdown = mode;
5134}
5135
5136int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
5137{
5138 return ctx->quiet_shutdown;
5139}
5140
5141void SSL_set_quiet_shutdown(SSL *s, int mode)
5142{
5143 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5144
5145 /* Not supported with QUIC */
5146 if (sc == NULL)
5147 return;
5148
5149 sc->quiet_shutdown = mode;
5150}
5151
5152int SSL_get_quiet_shutdown(const SSL *s)
5153{
5154 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5155
5156 /* Not supported with QUIC */
5157 if (sc == NULL)
5158 return 0;
5159
5160 return sc->quiet_shutdown;
5161}
5162
5163void SSL_set_shutdown(SSL *s, int mode)
5164{
5165 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
5166
5167 /* Not supported with QUIC */
5168 if (sc == NULL)
5169 return;
5170
5171 sc->shutdown = mode;
5172}
5173
5174int SSL_get_shutdown(const SSL *s)
5175{
5176 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL_ONLY(s);
5177
5178#ifndef OPENSSL_NO_QUIC
5179 /* QUIC: Just indicate whether the connection was shutdown cleanly. */
5180 if (IS_QUIC(s))
5181 return ossl_quic_get_shutdown(s);
5182#endif
5183
5184 if (sc == NULL)
5185 return 0;
5186
5187 return sc->shutdown;
5188}
5189
5190int SSL_version(const SSL *s)
5191{
5192 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5193
5194#ifndef OPENSSL_NO_QUIC
5195 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5196 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5197 return OSSL_QUIC1_VERSION;
5198#endif
5199 if (sc == NULL)
5200 return 0;
5201
5202 return sc->version;
5203}
5204
5205int SSL_client_version(const SSL *s)
5206{
5207 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5208
5209#ifndef OPENSSL_NO_QUIC
5210 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5211 if (s->type == SSL_TYPE_QUIC_CONNECTION || s->type == SSL_TYPE_QUIC_XSO)
5212 return OSSL_QUIC1_VERSION;
5213#endif
5214 if (sc == NULL)
5215 return 0;
5216
5217 return sc->client_version;
5218}
5219
5220SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
5221{
5222 return ssl->ctx;
5223}
5224
5225SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
5226{
5227 CERT *new_cert;
5228 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5229
5230 /* TODO(QUIC FUTURE): Add support for QUIC */
5231 if (sc == NULL)
5232 return NULL;
5233
5234 if (ssl->ctx == ctx)
5235 return ssl->ctx;
5236 if (ctx == NULL)
5237 ctx = sc->session_ctx;
5238 new_cert = ssl_cert_dup(ctx->cert);
5239 if (new_cert == NULL) {
5240 return NULL;
5241 }
5242
5243 if (!custom_exts_copy_flags(&new_cert->custext, &sc->cert->custext)) {
5244 ssl_cert_free(new_cert);
5245 return NULL;
5246 }
5247
5248 ssl_cert_free(sc->cert);
5249 sc->cert = new_cert;
5250
5251 /*
5252 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5253 * so setter APIs must prevent invalid lengths from entering the system.
5254 */
5255 if (!ossl_assert(sc->sid_ctx_length <= sizeof(sc->sid_ctx)))
5256 return NULL;
5257
5258 /*
5259 * If the session ID context matches that of the parent SSL_CTX,
5260 * inherit it from the new SSL_CTX as well. If however the context does
5261 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5262 * leave it unchanged.
5263 */
5264 if ((ssl->ctx != NULL) &&
5265 (sc->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
5266 (memcmp(sc->sid_ctx, ssl->ctx->sid_ctx, sc->sid_ctx_length) == 0)) {
5267 sc->sid_ctx_length = ctx->sid_ctx_length;
5268 memcpy(&sc->sid_ctx, &ctx->sid_ctx, sizeof(sc->sid_ctx));
5269 }
5270
5271 SSL_CTX_up_ref(ctx);
5272 SSL_CTX_free(ssl->ctx); /* decrement reference count */
5273 ssl->ctx = ctx;
5274
5275 return ssl->ctx;
5276}
5277
5278int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
5279{
5280 return X509_STORE_set_default_paths_ex(ctx->cert_store, ctx->libctx,
5281 ctx->propq);
5282}
5283
5284int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
5285{
5286 X509_LOOKUP *lookup;
5287
5288 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
5289 if (lookup == NULL)
5290 return 0;
5291
5292 /* We ignore errors, in case the directory doesn't exist */
5293 ERR_set_mark();
5294
5295 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
5296
5297 ERR_pop_to_mark();
5298
5299 return 1;
5300}
5301
5302int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
5303{
5304 X509_LOOKUP *lookup;
5305
5306 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
5307 if (lookup == NULL)
5308 return 0;
5309
5310 /* We ignore errors, in case the file doesn't exist */
5311 ERR_set_mark();
5312
5313 X509_LOOKUP_load_file_ex(lookup, NULL, X509_FILETYPE_DEFAULT, ctx->libctx,
5314 ctx->propq);
5315
5316 ERR_pop_to_mark();
5317
5318 return 1;
5319}
5320
5321int SSL_CTX_set_default_verify_store(SSL_CTX *ctx)
5322{
5323 X509_LOOKUP *lookup;
5324
5325 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store());
5326 if (lookup == NULL)
5327 return 0;
5328
5329 /* We ignore errors, in case the directory doesn't exist */
5330 ERR_set_mark();
5331
5332 X509_LOOKUP_add_store_ex(lookup, NULL, ctx->libctx, ctx->propq);
5333
5334 ERR_pop_to_mark();
5335
5336 return 1;
5337}
5338
5339int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile)
5340{
5341 return X509_STORE_load_file_ex(ctx->cert_store, CAfile, ctx->libctx,
5342 ctx->propq);
5343}
5344
5345int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath)
5346{
5347 return X509_STORE_load_path(ctx->cert_store, CApath);
5348}
5349
5350int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore)
5351{
5352 return X509_STORE_load_store_ex(ctx->cert_store, CAstore, ctx->libctx,
5353 ctx->propq);
5354}
5355
5356int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
5357 const char *CApath)
5358{
5359 if (CAfile == NULL && CApath == NULL)
5360 return 0;
5361 if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile))
5362 return 0;
5363 if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath))
5364 return 0;
5365 return 1;
5366}
5367
5368void SSL_set_info_callback(SSL *ssl,
5369 void (*cb) (const SSL *ssl, int type, int val))
5370{
5371 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5372
5373 if (sc == NULL)
5374 return;
5375
5376 sc->info_callback = cb;
5377}
5378
5379/*
5380 * One compiler (Diab DCC) doesn't like argument names in returned function
5381 * pointer.
5382 */
5383void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
5384 int /* type */ ,
5385 int /* val */ ) {
5386 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5387
5388 if (sc == NULL)
5389 return NULL;
5390
5391 return sc->info_callback;
5392}
5393
5394void SSL_set_verify_result(SSL *ssl, long arg)
5395{
5396 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5397
5398 if (sc == NULL)
5399 return;
5400
5401 sc->verify_result = arg;
5402}
5403
5404long SSL_get_verify_result(const SSL *ssl)
5405{
5406 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5407
5408 if (sc == NULL)
5409 return 0;
5410
5411 return sc->verify_result;
5412}
5413
5414size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
5415{
5416 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5417
5418 if (sc == NULL)
5419 return 0;
5420
5421 if (outlen == 0)
5422 return sizeof(sc->s3.client_random);
5423 if (outlen > sizeof(sc->s3.client_random))
5424 outlen = sizeof(sc->s3.client_random);
5425 memcpy(out, sc->s3.client_random, outlen);
5426 return outlen;
5427}
5428
5429size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
5430{
5431 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5432
5433 if (sc == NULL)
5434 return 0;
5435
5436 if (outlen == 0)
5437 return sizeof(sc->s3.server_random);
5438 if (outlen > sizeof(sc->s3.server_random))
5439 outlen = sizeof(sc->s3.server_random);
5440 memcpy(out, sc->s3.server_random, outlen);
5441 return outlen;
5442}
5443
5444size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
5445 unsigned char *out, size_t outlen)
5446{
5447 if (outlen == 0)
5448 return session->master_key_length;
5449 if (outlen > session->master_key_length)
5450 outlen = session->master_key_length;
5451 memcpy(out, session->master_key, outlen);
5452 return outlen;
5453}
5454
5455int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in,
5456 size_t len)
5457{
5458 if (len > sizeof(sess->master_key))
5459 return 0;
5460
5461 memcpy(sess->master_key, in, len);
5462 sess->master_key_length = len;
5463 return 1;
5464}
5465
5466
5467int SSL_set_ex_data(SSL *s, int idx, void *arg)
5468{
5469 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5470}
5471
5472void *SSL_get_ex_data(const SSL *s, int idx)
5473{
5474 return CRYPTO_get_ex_data(&s->ex_data, idx);
5475}
5476
5477int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
5478{
5479 return CRYPTO_set_ex_data(&s->ex_data, idx, arg);
5480}
5481
5482void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
5483{
5484 return CRYPTO_get_ex_data(&s->ex_data, idx);
5485}
5486
5487X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
5488{
5489 return ctx->cert_store;
5490}
5491
5492void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
5493{
5494 X509_STORE_free(ctx->cert_store);
5495 ctx->cert_store = store;
5496}
5497
5498void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store)
5499{
5500 if (store != NULL)
5501 X509_STORE_up_ref(store);
5502 SSL_CTX_set_cert_store(ctx, store);
5503}
5504
5505int SSL_want(const SSL *s)
5506{
5507 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5508
5509#ifndef OPENSSL_NO_QUIC
5510 if (IS_QUIC(s))
5511 return ossl_quic_want(s);
5512#endif
5513
5514 if (sc == NULL)
5515 return SSL_NOTHING;
5516
5517 return sc->rwstate;
5518}
5519
5520#ifndef OPENSSL_NO_PSK
5521int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
5522{
5523 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5524 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5525 return 0;
5526 }
5527 OPENSSL_free(ctx->cert->psk_identity_hint);
5528 if (identity_hint != NULL) {
5529 ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5530 if (ctx->cert->psk_identity_hint == NULL)
5531 return 0;
5532 } else
5533 ctx->cert->psk_identity_hint = NULL;
5534 return 1;
5535}
5536
5537int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
5538{
5539 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5540
5541 if (sc == NULL)
5542 return 0;
5543
5544 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
5545 ERR_raise(ERR_LIB_SSL, SSL_R_DATA_LENGTH_TOO_LONG);
5546 return 0;
5547 }
5548 OPENSSL_free(sc->cert->psk_identity_hint);
5549 if (identity_hint != NULL) {
5550 sc->cert->psk_identity_hint = OPENSSL_strdup(identity_hint);
5551 if (sc->cert->psk_identity_hint == NULL)
5552 return 0;
5553 } else
5554 sc->cert->psk_identity_hint = NULL;
5555 return 1;
5556}
5557
5558const char *SSL_get_psk_identity_hint(const SSL *s)
5559{
5560 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5561
5562 if (sc == NULL || sc->session == NULL)
5563 return NULL;
5564
5565 return sc->session->psk_identity_hint;
5566}
5567
5568const char *SSL_get_psk_identity(const SSL *s)
5569{
5570 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5571
5572 if (sc == NULL || sc->session == NULL)
5573 return NULL;
5574
5575 return sc->session->psk_identity;
5576}
5577
5578void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb)
5579{
5580 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5581
5582 if (sc == NULL)
5583 return;
5584
5585 sc->psk_client_callback = cb;
5586}
5587
5588void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb)
5589{
5590 ctx->psk_client_callback = cb;
5591}
5592
5593void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb)
5594{
5595 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5596
5597 if (sc == NULL)
5598 return;
5599
5600 sc->psk_server_callback = cb;
5601}
5602
5603void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb)
5604{
5605 ctx->psk_server_callback = cb;
5606}
5607#endif
5608
5609void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb)
5610{
5611 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5612
5613 if (sc == NULL)
5614 return;
5615
5616 sc->psk_find_session_cb = cb;
5617}
5618
5619void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
5620 SSL_psk_find_session_cb_func cb)
5621{
5622 ctx->psk_find_session_cb = cb;
5623}
5624
5625void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
5626{
5627 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5628
5629 if (sc == NULL)
5630 return;
5631
5632 sc->psk_use_session_cb = cb;
5633}
5634
5635void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
5636 SSL_psk_use_session_cb_func cb)
5637{
5638 ctx->psk_use_session_cb = cb;
5639}
5640
5641void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
5642 void (*cb) (int write_p, int version,
5643 int content_type, const void *buf,
5644 size_t len, SSL *ssl, void *arg))
5645{
5646 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5647}
5648
5649void SSL_set_msg_callback(SSL *ssl,
5650 void (*cb) (int write_p, int version,
5651 int content_type, const void *buf,
5652 size_t len, SSL *ssl, void *arg))
5653{
5654 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
5655}
5656
5657void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
5658 int (*cb) (SSL *ssl,
5659 int
5660 is_forward_secure))
5661{
5662 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5663 (void (*)(void))cb);
5664}
5665
5666void SSL_set_not_resumable_session_callback(SSL *ssl,
5667 int (*cb) (SSL *ssl,
5668 int is_forward_secure))
5669{
5670 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
5671 (void (*)(void))cb);
5672}
5673
5674void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
5675 size_t (*cb) (SSL *ssl, int type,
5676 size_t len, void *arg))
5677{
5678 ctx->record_padding_cb = cb;
5679}
5680
5681void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg)
5682{
5683 ctx->record_padding_arg = arg;
5684}
5685
5686void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx)
5687{
5688 return ctx->record_padding_arg;
5689}
5690
5691int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size)
5692{
5693 if (IS_QUIC_CTX(ctx) && block_size > 1)
5694 return 0;
5695
5696 /* block size of 0 or 1 is basically no padding */
5697 if (block_size == 1)
5698 ctx->block_padding = 0;
5699 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5700 ctx->block_padding = block_size;
5701 else
5702 return 0;
5703 return 1;
5704}
5705
5706int SSL_set_record_padding_callback(SSL *ssl,
5707 size_t (*cb) (SSL *ssl, int type,
5708 size_t len, void *arg))
5709{
5710 BIO *b;
5711 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
5712
5713 if (sc == NULL)
5714 return 0;
5715
5716 b = SSL_get_wbio(ssl);
5717 if (b == NULL || !BIO_get_ktls_send(b)) {
5718 sc->rlayer.record_padding_cb = cb;
5719 return 1;
5720 }
5721 return 0;
5722}
5723
5724void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg)
5725{
5726 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5727
5728 if (sc == NULL)
5729 return;
5730
5731 sc->rlayer.record_padding_arg = arg;
5732}
5733
5734void *SSL_get_record_padding_callback_arg(const SSL *ssl)
5735{
5736 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);
5737
5738 if (sc == NULL)
5739 return NULL;
5740
5741 return sc->rlayer.record_padding_arg;
5742}
5743
5744int SSL_set_block_padding(SSL *ssl, size_t block_size)
5745{
5746 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
5747
5748 if (sc == NULL || (IS_QUIC(ssl) && block_size > 1))
5749 return 0;
5750
5751 /* block size of 0 or 1 is basically no padding */
5752 if (block_size == 1)
5753 sc->rlayer.block_padding = 0;
5754 else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH)
5755 sc->rlayer.block_padding = block_size;
5756 else
5757 return 0;
5758 return 1;
5759}
5760
5761int SSL_set_num_tickets(SSL *s, size_t num_tickets)
5762{
5763 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5764
5765 if (sc == NULL)
5766 return 0;
5767
5768 sc->num_tickets = num_tickets;
5769
5770 return 1;
5771}
5772
5773size_t SSL_get_num_tickets(const SSL *s)
5774{
5775 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5776
5777 if (sc == NULL)
5778 return 0;
5779
5780 return sc->num_tickets;
5781}
5782
5783int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
5784{
5785 ctx->num_tickets = num_tickets;
5786
5787 return 1;
5788}
5789
5790size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
5791{
5792 return ctx->num_tickets;
5793}
5794
5795/* Retrieve handshake hashes */
5796int ssl_handshake_hash(SSL_CONNECTION *s,
5797 unsigned char *out, size_t outlen,
5798 size_t *hashlen)
5799{
5800 EVP_MD_CTX *ctx = NULL;
5801 EVP_MD_CTX *hdgst = s->s3.handshake_dgst;
5802 int hashleni = EVP_MD_CTX_get_size(hdgst);
5803 int ret = 0;
5804
5805 if (hashleni < 0 || (size_t)hashleni > outlen) {
5806 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5807 goto err;
5808 }
5809
5810 ctx = EVP_MD_CTX_new();
5811 if (ctx == NULL) {
5812 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5813 goto err;
5814 }
5815
5816 if (!EVP_MD_CTX_copy_ex(ctx, hdgst)
5817 || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) {
5818 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
5819 goto err;
5820 }
5821
5822 *hashlen = hashleni;
5823
5824 ret = 1;
5825 err:
5826 EVP_MD_CTX_free(ctx);
5827 return ret;
5828}
5829
5830int SSL_session_reused(const SSL *s)
5831{
5832 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5833
5834 if (sc == NULL)
5835 return 0;
5836
5837 return sc->hit;
5838}
5839
5840int SSL_is_server(const SSL *s)
5841{
5842 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5843
5844 if (sc == NULL)
5845 return 0;
5846
5847 return sc->server;
5848}
5849
5850#ifndef OPENSSL_NO_DEPRECATED_1_1_0
5851void SSL_set_debug(SSL *s, int debug)
5852{
5853 /* Old function was do-nothing anyway... */
5854 (void)s;
5855 (void)debug;
5856}
5857#endif
5858
5859void SSL_set_security_level(SSL *s, int level)
5860{
5861 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5862
5863 if (sc == NULL)
5864 return;
5865
5866 sc->cert->sec_level = level;
5867}
5868
5869int SSL_get_security_level(const SSL *s)
5870{
5871 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5872
5873 if (sc == NULL)
5874 return 0;
5875
5876 return sc->cert->sec_level;
5877}
5878
5879void SSL_set_security_callback(SSL *s,
5880 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5881 int op, int bits, int nid,
5882 void *other, void *ex))
5883{
5884 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5885
5886 if (sc == NULL)
5887 return;
5888
5889 sc->cert->sec_cb = cb;
5890}
5891
5892int (*SSL_get_security_callback(const SSL *s)) (const SSL *s,
5893 const SSL_CTX *ctx, int op,
5894 int bits, int nid, void *other,
5895 void *ex) {
5896 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5897
5898 if (sc == NULL)
5899 return NULL;
5900
5901 return sc->cert->sec_cb;
5902}
5903
5904void SSL_set0_security_ex_data(SSL *s, void *ex)
5905{
5906 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
5907
5908 if (sc == NULL)
5909 return;
5910
5911 sc->cert->sec_ex = ex;
5912}
5913
5914void *SSL_get0_security_ex_data(const SSL *s)
5915{
5916 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5917
5918 if (sc == NULL)
5919 return NULL;
5920
5921 return sc->cert->sec_ex;
5922}
5923
5924void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
5925{
5926 ctx->cert->sec_level = level;
5927}
5928
5929int SSL_CTX_get_security_level(const SSL_CTX *ctx)
5930{
5931 return ctx->cert->sec_level;
5932}
5933
5934void SSL_CTX_set_security_callback(SSL_CTX *ctx,
5935 int (*cb) (const SSL *s, const SSL_CTX *ctx,
5936 int op, int bits, int nid,
5937 void *other, void *ex))
5938{
5939 ctx->cert->sec_cb = cb;
5940}
5941
5942int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
5943 const SSL_CTX *ctx,
5944 int op, int bits,
5945 int nid,
5946 void *other,
5947 void *ex) {
5948 return ctx->cert->sec_cb;
5949}
5950
5951void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
5952{
5953 ctx->cert->sec_ex = ex;
5954}
5955
5956void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
5957{
5958 return ctx->cert->sec_ex;
5959}
5960
5961uint64_t SSL_CTX_get_options(const SSL_CTX *ctx)
5962{
5963 return ctx->options;
5964}
5965
5966uint64_t SSL_get_options(const SSL *s)
5967{
5968 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
5969
5970#ifndef OPENSSL_NO_QUIC
5971 if (IS_QUIC(s))
5972 return ossl_quic_get_options(s);
5973#endif
5974
5975 if (sc == NULL)
5976 return 0;
5977
5978 return sc->options;
5979}
5980
5981uint64_t SSL_CTX_set_options(SSL_CTX *ctx, uint64_t op)
5982{
5983 return ctx->options |= op;
5984}
5985
5986uint64_t SSL_set_options(SSL *s, uint64_t op)
5987{
5988 SSL_CONNECTION *sc;
5989 OSSL_PARAM options[2], *opts = options;
5990
5991#ifndef OPENSSL_NO_QUIC
5992 if (IS_QUIC(s))
5993 return ossl_quic_set_options(s, op);
5994#endif
5995
5996 sc = SSL_CONNECTION_FROM_SSL(s);
5997 if (sc == NULL)
5998 return 0;
5999
6000 sc->options |= op;
6001
6002 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
6003 &sc->options);
6004 *opts = OSSL_PARAM_construct_end();
6005
6006 /* Ignore return value */
6007 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
6008 sc->rlayer.wrlmethod->set_options(sc->rlayer.wrl, options);
6009
6010 return sc->options;
6011}
6012
6013uint64_t SSL_CTX_clear_options(SSL_CTX *ctx, uint64_t op)
6014{
6015 return ctx->options &= ~op;
6016}
6017
6018uint64_t SSL_clear_options(SSL *s, uint64_t op)
6019{
6020 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6021 OSSL_PARAM options[2], *opts = options;
6022
6023#ifndef OPENSSL_NO_QUIC
6024 if (IS_QUIC(s))
6025 return ossl_quic_clear_options(s, op);
6026#endif
6027
6028 if (sc == NULL)
6029 return 0;
6030
6031 sc->options &= ~op;
6032
6033 *opts++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS,
6034 &sc->options);
6035 *opts = OSSL_PARAM_construct_end();
6036
6037 /* Ignore return value */
6038 sc->rlayer.rrlmethod->set_options(sc->rlayer.rrl, options);
6039 sc->rlayer.wrlmethod->set_options(sc->rlayer.wrl, options);
6040
6041 return sc->options;
6042}
6043
6044STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s)
6045{
6046 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6047
6048 if (sc == NULL)
6049 return NULL;
6050
6051 return sc->verified_chain;
6052}
6053
6054IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
6055
6056#ifndef OPENSSL_NO_CT
6057
6058/*
6059 * Moves SCTs from the |src| stack to the |dst| stack.
6060 * The source of each SCT will be set to |origin|.
6061 * If |dst| points to a NULL pointer, a new stack will be created and owned by
6062 * the caller.
6063 * Returns the number of SCTs moved, or a negative integer if an error occurs.
6064 * The |dst| stack is created and possibly partially populated even in case
6065 * of error, likewise the |src| stack may be left in an intermediate state.
6066 */
6067static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src,
6068 sct_source_t origin)
6069{
6070 int scts_moved = 0;
6071 SCT *sct = NULL;
6072
6073 if (*dst == NULL) {
6074 *dst = sk_SCT_new_null();
6075 if (*dst == NULL) {
6076 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6077 goto err;
6078 }
6079 }
6080
6081 while ((sct = sk_SCT_pop(src)) != NULL) {
6082 if (SCT_set_source(sct, origin) != 1)
6083 goto err;
6084
6085 if (!sk_SCT_push(*dst, sct))
6086 goto err;
6087 scts_moved += 1;
6088 }
6089
6090 return scts_moved;
6091 err:
6092 SCT_free(sct);
6093 return -1;
6094}
6095
6096/*
6097 * Look for data collected during ServerHello and parse if found.
6098 * Returns the number of SCTs extracted.
6099 */
6100static int ct_extract_tls_extension_scts(SSL_CONNECTION *s)
6101{
6102 int scts_extracted = 0;
6103
6104 if (s->ext.scts != NULL) {
6105 const unsigned char *p = s->ext.scts;
6106 STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len);
6107
6108 scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION);
6109
6110 SCT_LIST_free(scts);
6111 }
6112
6113 return scts_extracted;
6114}
6115
6116/*
6117 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6118 * contains an SCT X509 extension. They will be stored in |s->scts|.
6119 * Returns:
6120 * - The number of SCTs extracted, assuming an OCSP response exists.
6121 * - 0 if no OCSP response exists or it contains no SCTs.
6122 * - A negative integer if an error occurs.
6123 */
6124static int ct_extract_ocsp_response_scts(SSL_CONNECTION *s)
6125{
6126# ifndef OPENSSL_NO_OCSP
6127 int scts_extracted = 0;
6128 const unsigned char *p;
6129 OCSP_BASICRESP *br = NULL;
6130 OCSP_RESPONSE *rsp = NULL;
6131 STACK_OF(SCT) *scts = NULL;
6132 int i;
6133
6134 if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0)
6135 goto err;
6136
6137 p = s->ext.ocsp.resp;
6138 rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len);
6139 if (rsp == NULL)
6140 goto err;
6141
6142 br = OCSP_response_get1_basic(rsp);
6143 if (br == NULL)
6144 goto err;
6145
6146 for (i = 0; i < OCSP_resp_count(br); ++i) {
6147 OCSP_SINGLERESP *single = OCSP_resp_get0(br, i);
6148
6149 if (single == NULL)
6150 continue;
6151
6152 scts =
6153 OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL);
6154 scts_extracted =
6155 ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE);
6156 if (scts_extracted < 0)
6157 goto err;
6158 }
6159 err:
6160 SCT_LIST_free(scts);
6161 OCSP_BASICRESP_free(br);
6162 OCSP_RESPONSE_free(rsp);
6163 return scts_extracted;
6164# else
6165 /* Behave as if no OCSP response exists */
6166 return 0;
6167# endif
6168}
6169
6170/*
6171 * Attempts to extract SCTs from the peer certificate.
6172 * Return the number of SCTs extracted, or a negative integer if an error
6173 * occurs.
6174 */
6175static int ct_extract_x509v3_extension_scts(SSL_CONNECTION *s)
6176{
6177 int scts_extracted = 0;
6178 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6179
6180 if (cert != NULL) {
6181 STACK_OF(SCT) *scts =
6182 X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL);
6183
6184 scts_extracted =
6185 ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION);
6186
6187 SCT_LIST_free(scts);
6188 }
6189
6190 return scts_extracted;
6191}
6192
6193/*
6194 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6195 * response (if it exists) and X509v3 extensions in the certificate.
6196 * Returns NULL if an error occurs.
6197 */
6198const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s)
6199{
6200 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6201
6202 if (sc == NULL)
6203 return NULL;
6204
6205 if (!sc->scts_parsed) {
6206 if (ct_extract_tls_extension_scts(sc) < 0 ||
6207 ct_extract_ocsp_response_scts(sc) < 0 ||
6208 ct_extract_x509v3_extension_scts(sc) < 0)
6209 goto err;
6210
6211 sc->scts_parsed = 1;
6212 }
6213 return sc->scts;
6214 err:
6215 return NULL;
6216}
6217
6218static int ct_permissive(const CT_POLICY_EVAL_CTX *ctx,
6219 const STACK_OF(SCT) *scts, void *unused_arg)
6220{
6221 return 1;
6222}
6223
6224static int ct_strict(const CT_POLICY_EVAL_CTX *ctx,
6225 const STACK_OF(SCT) *scts, void *unused_arg)
6226{
6227 int count = scts != NULL ? sk_SCT_num(scts) : 0;
6228 int i;
6229
6230 for (i = 0; i < count; ++i) {
6231 SCT *sct = sk_SCT_value(scts, i);
6232 int status = SCT_get_validation_status(sct);
6233
6234 if (status == SCT_VALIDATION_STATUS_VALID)
6235 return 1;
6236 }
6237 ERR_raise(ERR_LIB_SSL, SSL_R_NO_VALID_SCTS);
6238 return 0;
6239}
6240
6241int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
6242 void *arg)
6243{
6244 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6245
6246 if (sc == NULL)
6247 return 0;
6248
6249 /*
6250 * Since code exists that uses the custom extension handler for CT, look
6251 * for this and throw an error if they have already registered to use CT.
6252 */
6253 if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx,
6254 TLSEXT_TYPE_signed_certificate_timestamp))
6255 {
6256 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6257 return 0;
6258 }
6259
6260 if (callback != NULL) {
6261 /*
6262 * If we are validating CT, then we MUST accept SCTs served via OCSP
6263 */
6264 if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp))
6265 return 0;
6266 }
6267
6268 sc->ct_validation_callback = callback;
6269 sc->ct_validation_callback_arg = arg;
6270
6271 return 1;
6272}
6273
6274int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
6275 ssl_ct_validation_cb callback, void *arg)
6276{
6277 /*
6278 * Since code exists that uses the custom extension handler for CT, look for
6279 * this and throw an error if they have already registered to use CT.
6280 */
6281 if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx,
6282 TLSEXT_TYPE_signed_certificate_timestamp))
6283 {
6284 ERR_raise(ERR_LIB_SSL, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED);
6285 return 0;
6286 }
6287
6288 ctx->ct_validation_callback = callback;
6289 ctx->ct_validation_callback_arg = arg;
6290 return 1;
6291}
6292
6293int SSL_ct_is_enabled(const SSL *s)
6294{
6295 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6296
6297 if (sc == NULL)
6298 return 0;
6299
6300 return sc->ct_validation_callback != NULL;
6301}
6302
6303int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx)
6304{
6305 return ctx->ct_validation_callback != NULL;
6306}
6307
6308int ssl_validate_ct(SSL_CONNECTION *s)
6309{
6310 int ret = 0;
6311 X509 *cert = s->session != NULL ? s->session->peer : NULL;
6312 X509 *issuer;
6313 SSL_DANE *dane = &s->dane;
6314 CT_POLICY_EVAL_CTX *ctx = NULL;
6315 const STACK_OF(SCT) *scts;
6316
6317 /*
6318 * If no callback is set, the peer is anonymous, or its chain is invalid,
6319 * skip SCT validation - just return success. Applications that continue
6320 * handshakes without certificates, with unverified chains, or pinned leaf
6321 * certificates are outside the scope of the WebPKI and CT.
6322 *
6323 * The above exclusions notwithstanding the vast majority of peers will
6324 * have rather ordinary certificate chains validated by typical
6325 * applications that perform certificate verification and therefore will
6326 * process SCTs when enabled.
6327 */
6328 if (s->ct_validation_callback == NULL || cert == NULL ||
6329 s->verify_result != X509_V_OK ||
6330 s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1)
6331 return 1;
6332
6333 /*
6334 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6335 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6336 */
6337 if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) {
6338 switch (dane->mtlsa->usage) {
6339 case DANETLS_USAGE_DANE_TA:
6340 case DANETLS_USAGE_DANE_EE:
6341 return 1;
6342 }
6343 }
6344
6345 ctx = CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s)->libctx,
6346 SSL_CONNECTION_GET_CTX(s)->propq);
6347 if (ctx == NULL) {
6348 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CT_LIB);
6349 goto end;
6350 }
6351
6352 issuer = sk_X509_value(s->verified_chain, 1);
6353 CT_POLICY_EVAL_CTX_set1_cert(ctx, cert);
6354 CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer);
6355 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx,
6356 SSL_CONNECTION_GET_CTX(s)->ctlog_store);
6357 CT_POLICY_EVAL_CTX_set_time(
6358 ctx, (uint64_t)SSL_SESSION_get_time(s->session) * 1000);
6359
6360 scts = SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s));
6361
6362 /*
6363 * This function returns success (> 0) only when all the SCTs are valid, 0
6364 * when some are invalid, and < 0 on various internal errors (out of
6365 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6366 * reason to abort the handshake, that decision is up to the callback.
6367 * Therefore, we error out only in the unexpected case that the return
6368 * value is negative.
6369 *
6370 * XXX: One might well argue that the return value of this function is an
6371 * unfortunate design choice. Its job is only to determine the validation
6372 * status of each of the provided SCTs. So long as it correctly separates
6373 * the wheat from the chaff it should return success. Failure in this case
6374 * ought to correspond to an inability to carry out its duties.
6375 */
6376 if (SCT_LIST_validate(scts, ctx) < 0) {
6377 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_SCT_VERIFICATION_FAILED);
6378 goto end;
6379 }
6380
6381 ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg);
6382 if (ret < 0)
6383 ret = 0; /* This function returns 0 on failure */
6384 if (!ret)
6385 SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_R_CALLBACK_FAILED);
6386
6387 end:
6388 CT_POLICY_EVAL_CTX_free(ctx);
6389 /*
6390 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6391 * failure return code here. Also the application may wish the complete
6392 * the handshake, and then disconnect cleanly at a higher layer, after
6393 * checking the verification status of the completed connection.
6394 *
6395 * We therefore force a certificate verification failure which will be
6396 * visible via SSL_get_verify_result() and cached as part of any resumed
6397 * session.
6398 *
6399 * Note: the permissive callback is for information gathering only, always
6400 * returns success, and does not affect verification status. Only the
6401 * strict callback or a custom application-specified callback can trigger
6402 * connection failure or record a verification error.
6403 */
6404 if (ret <= 0)
6405 s->verify_result = X509_V_ERR_NO_VALID_SCTS;
6406 return ret;
6407}
6408
6409int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode)
6410{
6411 switch (validation_mode) {
6412 default:
6413 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6414 return 0;
6415 case SSL_CT_VALIDATION_PERMISSIVE:
6416 return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL);
6417 case SSL_CT_VALIDATION_STRICT:
6418 return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL);
6419 }
6420}
6421
6422int SSL_enable_ct(SSL *s, int validation_mode)
6423{
6424 switch (validation_mode) {
6425 default:
6426 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CT_VALIDATION_TYPE);
6427 return 0;
6428 case SSL_CT_VALIDATION_PERMISSIVE:
6429 return SSL_set_ct_validation_callback(s, ct_permissive, NULL);
6430 case SSL_CT_VALIDATION_STRICT:
6431 return SSL_set_ct_validation_callback(s, ct_strict, NULL);
6432 }
6433}
6434
6435int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx)
6436{
6437 return CTLOG_STORE_load_default_file(ctx->ctlog_store);
6438}
6439
6440int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path)
6441{
6442 return CTLOG_STORE_load_file(ctx->ctlog_store, path);
6443}
6444
6445void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs)
6446{
6447 CTLOG_STORE_free(ctx->ctlog_store);
6448 ctx->ctlog_store = logs;
6449}
6450
6451const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx)
6452{
6453 return ctx->ctlog_store;
6454}
6455
6456#endif /* OPENSSL_NO_CT */
6457
6458void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
6459 void *arg)
6460{
6461 c->client_hello_cb = cb;
6462 c->client_hello_cb_arg = arg;
6463}
6464
6465int SSL_client_hello_isv2(SSL *s)
6466{
6467 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6468
6469 if (sc == NULL)
6470 return 0;
6471
6472 if (sc->clienthello == NULL)
6473 return 0;
6474 return sc->clienthello->isv2;
6475}
6476
6477unsigned int SSL_client_hello_get0_legacy_version(SSL *s)
6478{
6479 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6480
6481 if (sc == NULL)
6482 return 0;
6483
6484 if (sc->clienthello == NULL)
6485 return 0;
6486 return sc->clienthello->legacy_version;
6487}
6488
6489size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out)
6490{
6491 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6492
6493 if (sc == NULL)
6494 return 0;
6495
6496 if (sc->clienthello == NULL)
6497 return 0;
6498 if (out != NULL)
6499 *out = sc->clienthello->random;
6500 return SSL3_RANDOM_SIZE;
6501}
6502
6503size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out)
6504{
6505 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6506
6507 if (sc == NULL)
6508 return 0;
6509
6510 if (sc->clienthello == NULL)
6511 return 0;
6512 if (out != NULL)
6513 *out = sc->clienthello->session_id;
6514 return sc->clienthello->session_id_len;
6515}
6516
6517size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out)
6518{
6519 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6520
6521 if (sc == NULL)
6522 return 0;
6523
6524 if (sc->clienthello == NULL)
6525 return 0;
6526 if (out != NULL)
6527 *out = PACKET_data(&sc->clienthello->ciphersuites);
6528 return PACKET_remaining(&sc->clienthello->ciphersuites);
6529}
6530
6531size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out)
6532{
6533 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6534
6535 if (sc == NULL)
6536 return 0;
6537
6538 if (sc->clienthello == NULL)
6539 return 0;
6540 if (out != NULL)
6541 *out = sc->clienthello->compressions;
6542 return sc->clienthello->compressions_len;
6543}
6544
6545int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen)
6546{
6547 RAW_EXTENSION *ext;
6548 int *present;
6549 size_t num = 0, i;
6550 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6551
6552 if (sc == NULL)
6553 return 0;
6554
6555 if (sc->clienthello == NULL || out == NULL || outlen == NULL)
6556 return 0;
6557 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6558 ext = sc->clienthello->pre_proc_exts + i;
6559 if (ext->present)
6560 num++;
6561 }
6562 if (num == 0) {
6563 *out = NULL;
6564 *outlen = 0;
6565 return 1;
6566 }
6567 if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL)
6568 return 0;
6569 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6570 ext = sc->clienthello->pre_proc_exts + i;
6571 if (ext->present) {
6572 if (ext->received_order >= num)
6573 goto err;
6574 present[ext->received_order] = ext->type;
6575 }
6576 }
6577 *out = present;
6578 *outlen = num;
6579 return 1;
6580 err:
6581 OPENSSL_free(present);
6582 return 0;
6583}
6584
6585int SSL_client_hello_get_extension_order(SSL *s, uint16_t *exts, size_t *num_exts)
6586{
6587 RAW_EXTENSION *ext;
6588 size_t num = 0, i;
6589 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6590
6591 if (sc == NULL)
6592 return 0;
6593
6594 if (sc->clienthello == NULL || num_exts == NULL)
6595 return 0;
6596 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6597 ext = sc->clienthello->pre_proc_exts + i;
6598 if (ext->present)
6599 num++;
6600 }
6601 if (num == 0) {
6602 *num_exts = 0;
6603 return 1;
6604 }
6605 if (exts == NULL) {
6606 *num_exts = num;
6607 return 1;
6608 }
6609 if (*num_exts < num)
6610 return 0;
6611 for (i = 0; i < sc->clienthello->pre_proc_exts_len; i++) {
6612 ext = sc->clienthello->pre_proc_exts + i;
6613 if (ext->present) {
6614 if (ext->received_order >= num)
6615 return 0;
6616 exts[ext->received_order] = ext->type;
6617 }
6618 }
6619 *num_exts = num;
6620 return 1;
6621}
6622
6623int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out,
6624 size_t *outlen)
6625{
6626 size_t i;
6627 RAW_EXTENSION *r;
6628 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6629
6630 if (sc == NULL)
6631 return 0;
6632
6633 if (sc->clienthello == NULL)
6634 return 0;
6635 for (i = 0; i < sc->clienthello->pre_proc_exts_len; ++i) {
6636 r = sc->clienthello->pre_proc_exts + i;
6637 if (r->present && r->type == type) {
6638 if (out != NULL)
6639 *out = PACKET_data(&r->data);
6640 if (outlen != NULL)
6641 *outlen = PACKET_remaining(&r->data);
6642 return 1;
6643 }
6644 }
6645 return 0;
6646}
6647
6648int SSL_free_buffers(SSL *ssl)
6649{
6650 RECORD_LAYER *rl;
6651 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
6652
6653 if (sc == NULL)
6654 return 0;
6655
6656 rl = &sc->rlayer;
6657
6658 return rl->rrlmethod->free_buffers(rl->rrl)
6659 && rl->wrlmethod->free_buffers(rl->wrl);
6660}
6661
6662int SSL_alloc_buffers(SSL *ssl)
6663{
6664 RECORD_LAYER *rl;
6665 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
6666
6667 if (sc == NULL)
6668 return 0;
6669
6670 /* QUIC always has buffers allocated. */
6671 if (IS_QUIC(ssl))
6672 return 1;
6673
6674 rl = &sc->rlayer;
6675
6676 return rl->rrlmethod->alloc_buffers(rl->rrl)
6677 && rl->wrlmethod->alloc_buffers(rl->wrl);
6678}
6679
6680void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
6681{
6682 ctx->keylog_callback = cb;
6683}
6684
6685SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
6686{
6687 return ctx->keylog_callback;
6688}
6689
6690static int nss_keylog_int(const char *prefix,
6691 SSL_CONNECTION *sc,
6692 const uint8_t *parameter_1,
6693 size_t parameter_1_len,
6694 const uint8_t *parameter_2,
6695 size_t parameter_2_len)
6696{
6697 char *out = NULL;
6698 char *cursor = NULL;
6699 size_t out_len = 0;
6700 size_t i;
6701 size_t prefix_len;
6702 SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(sc);
6703
6704 if (sctx->keylog_callback == NULL)
6705 return 1;
6706
6707 /*
6708 * Our output buffer will contain the following strings, rendered with
6709 * space characters in between, terminated by a NULL character: first the
6710 * prefix, then the first parameter, then the second parameter. The
6711 * meaning of each parameter depends on the specific key material being
6712 * logged. Note that the first and second parameters are encoded in
6713 * hexadecimal, so we need a buffer that is twice their lengths.
6714 */
6715 prefix_len = strlen(prefix);
6716 out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3;
6717 if ((out = cursor = OPENSSL_malloc(out_len)) == NULL)
6718 return 0;
6719
6720 strcpy(cursor, prefix);
6721 cursor += prefix_len;
6722 *cursor++ = ' ';
6723
6724 for (i = 0; i < parameter_1_len; i++) {
6725 sprintf(cursor, "%02x", parameter_1[i]);
6726 cursor += 2;
6727 }
6728 *cursor++ = ' ';
6729
6730 for (i = 0; i < parameter_2_len; i++) {
6731 sprintf(cursor, "%02x", parameter_2[i]);
6732 cursor += 2;
6733 }
6734 *cursor = '\0';
6735
6736 sctx->keylog_callback(SSL_CONNECTION_GET_SSL(sc), (const char *)out);
6737 OPENSSL_clear_free(out, out_len);
6738 return 1;
6739
6740}
6741
6742int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *sc,
6743 const uint8_t *encrypted_premaster,
6744 size_t encrypted_premaster_len,
6745 const uint8_t *premaster,
6746 size_t premaster_len)
6747{
6748 if (encrypted_premaster_len < 8) {
6749 SSLfatal(sc, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6750 return 0;
6751 }
6752
6753 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6754 return nss_keylog_int("RSA",
6755 sc,
6756 encrypted_premaster,
6757 8,
6758 premaster,
6759 premaster_len);
6760}
6761
6762int ssl_log_secret(SSL_CONNECTION *sc,
6763 const char *label,
6764 const uint8_t *secret,
6765 size_t secret_len)
6766{
6767 return nss_keylog_int(label,
6768 sc,
6769 sc->s3.client_random,
6770 SSL3_RANDOM_SIZE,
6771 secret,
6772 secret_len);
6773}
6774
6775#define SSLV2_CIPHER_LEN 3
6776
6777int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, int sslv2format)
6778{
6779 int n;
6780
6781 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6782
6783 if (PACKET_remaining(cipher_suites) == 0) {
6784 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6785 return 0;
6786 }
6787
6788 if (PACKET_remaining(cipher_suites) % n != 0) {
6789 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6790 return 0;
6791 }
6792
6793 OPENSSL_free(s->s3.tmp.ciphers_raw);
6794 s->s3.tmp.ciphers_raw = NULL;
6795 s->s3.tmp.ciphers_rawlen = 0;
6796
6797 if (sslv2format) {
6798 size_t numciphers = PACKET_remaining(cipher_suites) / n;
6799 PACKET sslv2ciphers = *cipher_suites;
6800 unsigned int leadbyte;
6801 unsigned char *raw;
6802
6803 /*
6804 * We store the raw ciphers list in SSLv3+ format so we need to do some
6805 * preprocessing to convert the list first. If there are any SSLv2 only
6806 * ciphersuites with a non-zero leading byte then we are going to
6807 * slightly over allocate because we won't store those. But that isn't a
6808 * problem.
6809 */
6810 raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);
6811 s->s3.tmp.ciphers_raw = raw;
6812 if (raw == NULL) {
6813 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6814 return 0;
6815 }
6816 for (s->s3.tmp.ciphers_rawlen = 0;
6817 PACKET_remaining(&sslv2ciphers) > 0;
6818 raw += TLS_CIPHER_LEN) {
6819 if (!PACKET_get_1(&sslv2ciphers, &leadbyte)
6820 || (leadbyte == 0
6821 && !PACKET_copy_bytes(&sslv2ciphers, raw,
6822 TLS_CIPHER_LEN))
6823 || (leadbyte != 0
6824 && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {
6825 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_PACKET);
6826 OPENSSL_free(s->s3.tmp.ciphers_raw);
6827 s->s3.tmp.ciphers_raw = NULL;
6828 s->s3.tmp.ciphers_rawlen = 0;
6829 return 0;
6830 }
6831 if (leadbyte == 0)
6832 s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN;
6833 }
6834 } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw,
6835 &s->s3.tmp.ciphers_rawlen)) {
6836 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
6837 return 0;
6838 }
6839 return 1;
6840}
6841
6842int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
6843 int isv2format, STACK_OF(SSL_CIPHER) **sk,
6844 STACK_OF(SSL_CIPHER) **scsvs)
6845{
6846 PACKET pkt;
6847 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
6848
6849 if (sc == NULL)
6850 return 0;
6851
6852 if (!PACKET_buf_init(&pkt, bytes, len))
6853 return 0;
6854 return ossl_bytes_to_cipher_list(sc, &pkt, sk, scsvs, isv2format, 0);
6855}
6856
6857int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
6858 STACK_OF(SSL_CIPHER) **skp,
6859 STACK_OF(SSL_CIPHER) **scsvs_out,
6860 int sslv2format, int fatal)
6861{
6862 const SSL_CIPHER *c;
6863 STACK_OF(SSL_CIPHER) *sk = NULL;
6864 STACK_OF(SSL_CIPHER) *scsvs = NULL;
6865 int n;
6866 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6867 unsigned char cipher[SSLV2_CIPHER_LEN];
6868
6869 n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;
6870
6871 if (PACKET_remaining(cipher_suites) == 0) {
6872 if (fatal)
6873 SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_R_NO_CIPHERS_SPECIFIED);
6874 else
6875 ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHERS_SPECIFIED);
6876 return 0;
6877 }
6878
6879 if (PACKET_remaining(cipher_suites) % n != 0) {
6880 if (fatal)
6881 SSLfatal(s, SSL_AD_DECODE_ERROR,
6882 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6883 else
6884 ERR_raise(ERR_LIB_SSL, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
6885 return 0;
6886 }
6887
6888 sk = sk_SSL_CIPHER_new_null();
6889 scsvs = sk_SSL_CIPHER_new_null();
6890 if (sk == NULL || scsvs == NULL) {
6891 if (fatal)
6892 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6893 else
6894 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6895 goto err;
6896 }
6897
6898 while (PACKET_copy_bytes(cipher_suites, cipher, n)) {
6899 /*
6900 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6901 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6902 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6903 */
6904 if (sslv2format && cipher[0] != '\0')
6905 continue;
6906
6907 /* For SSLv2-compat, ignore leading 0-byte. */
6908 c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);
6909 if (c != NULL) {
6910 if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||
6911 (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {
6912 if (fatal)
6913 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_CRYPTO_LIB);
6914 else
6915 ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB);
6916 goto err;
6917 }
6918 }
6919 }
6920 if (PACKET_remaining(cipher_suites) > 0) {
6921 if (fatal)
6922 SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_R_BAD_LENGTH);
6923 else
6924 ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
6925 goto err;
6926 }
6927
6928 if (skp != NULL)
6929 *skp = sk;
6930 else
6931 sk_SSL_CIPHER_free(sk);
6932 if (scsvs_out != NULL)
6933 *scsvs_out = scsvs;
6934 else
6935 sk_SSL_CIPHER_free(scsvs);
6936 return 1;
6937 err:
6938 sk_SSL_CIPHER_free(sk);
6939 sk_SSL_CIPHER_free(scsvs);
6940 return 0;
6941}
6942
6943int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
6944{
6945 ctx->max_early_data = max_early_data;
6946
6947 return 1;
6948}
6949
6950uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
6951{
6952 return ctx->max_early_data;
6953}
6954
6955int SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
6956{
6957 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
6958
6959 if (sc == NULL)
6960 return 0;
6961
6962 sc->max_early_data = max_early_data;
6963
6964 return 1;
6965}
6966
6967uint32_t SSL_get_max_early_data(const SSL *s)
6968{
6969 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
6970
6971 if (sc == NULL)
6972 return 0;
6973
6974 return sc->max_early_data;
6975}
6976
6977int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data)
6978{
6979 ctx->recv_max_early_data = recv_max_early_data;
6980
6981 return 1;
6982}
6983
6984uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx)
6985{
6986 return ctx->recv_max_early_data;
6987}
6988
6989int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data)
6990{
6991 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
6992
6993 if (sc == NULL)
6994 return 0;
6995
6996 sc->recv_max_early_data = recv_max_early_data;
6997
6998 return 1;
6999}
7000
7001uint32_t SSL_get_recv_max_early_data(const SSL *s)
7002{
7003 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7004
7005 if (sc == NULL)
7006 return 0;
7007
7008 return sc->recv_max_early_data;
7009}
7010
7011__owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc)
7012{
7013 /* Return any active Max Fragment Len extension */
7014 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session))
7015 return GET_MAX_FRAGMENT_LENGTH(sc->session);
7016
7017 /* return current SSL connection setting */
7018 return sc->max_send_fragment;
7019}
7020
7021__owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc)
7022{
7023 /* Return a value regarding an active Max Fragment Len extension */
7024 if (sc->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(sc->session)
7025 && sc->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(sc->session))
7026 return GET_MAX_FRAGMENT_LENGTH(sc->session);
7027
7028 /* else limit |split_send_fragment| to current |max_send_fragment| */
7029 if (sc->split_send_fragment > sc->max_send_fragment)
7030 return sc->max_send_fragment;
7031
7032 /* return current SSL connection setting */
7033 return sc->split_send_fragment;
7034}
7035
7036int SSL_stateless(SSL *s)
7037{
7038 int ret;
7039 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7040
7041 if (sc == NULL)
7042 return 0;
7043
7044 /* Ensure there is no state left over from a previous invocation */
7045 if (!SSL_clear(s))
7046 return 0;
7047
7048 ERR_clear_error();
7049
7050 sc->s3.flags |= TLS1_FLAGS_STATELESS;
7051 ret = SSL_accept(s);
7052 sc->s3.flags &= ~TLS1_FLAGS_STATELESS;
7053
7054 if (ret > 0 && sc->ext.cookieok)
7055 return 1;
7056
7057 if (sc->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(sc))
7058 return 0;
7059
7060 return -1;
7061}
7062
7063void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
7064{
7065 ctx->pha_enabled = val;
7066}
7067
7068void SSL_set_post_handshake_auth(SSL *ssl, int val)
7069{
7070 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(ssl);
7071
7072 if (sc == NULL)
7073 return;
7074
7075 sc->pha_enabled = val;
7076}
7077
7078int SSL_verify_client_post_handshake(SSL *ssl)
7079{
7080 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
7081
7082#ifndef OPENSSL_NO_QUIC
7083 if (IS_QUIC(ssl)) {
7084 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7085 return 0;
7086 }
7087#endif
7088
7089 if (sc == NULL)
7090 return 0;
7091
7092 if (!SSL_CONNECTION_IS_TLS13(sc)) {
7093 ERR_raise(ERR_LIB_SSL, SSL_R_WRONG_SSL_VERSION);
7094 return 0;
7095 }
7096 if (!sc->server) {
7097 ERR_raise(ERR_LIB_SSL, SSL_R_NOT_SERVER);
7098 return 0;
7099 }
7100
7101 if (!SSL_is_init_finished(ssl)) {
7102 ERR_raise(ERR_LIB_SSL, SSL_R_STILL_IN_INIT);
7103 return 0;
7104 }
7105
7106 switch (sc->post_handshake_auth) {
7107 case SSL_PHA_NONE:
7108 ERR_raise(ERR_LIB_SSL, SSL_R_EXTENSION_NOT_RECEIVED);
7109 return 0;
7110 default:
7111 case SSL_PHA_EXT_SENT:
7112 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
7113 return 0;
7114 case SSL_PHA_EXT_RECEIVED:
7115 break;
7116 case SSL_PHA_REQUEST_PENDING:
7117 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_PENDING);
7118 return 0;
7119 case SSL_PHA_REQUESTED:
7120 ERR_raise(ERR_LIB_SSL, SSL_R_REQUEST_SENT);
7121 return 0;
7122 }
7123
7124 sc->post_handshake_auth = SSL_PHA_REQUEST_PENDING;
7125
7126 /* checks verify_mode and algorithm_auth */
7127 if (!send_certificate_request(sc)) {
7128 sc->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */
7129 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_CONFIG);
7130 return 0;
7131 }
7132
7133 ossl_statem_set_in_init(sc, 1);
7134 return 1;
7135}
7136
7137int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
7138 SSL_CTX_generate_session_ticket_fn gen_cb,
7139 SSL_CTX_decrypt_session_ticket_fn dec_cb,
7140 void *arg)
7141{
7142 ctx->generate_ticket_cb = gen_cb;
7143 ctx->decrypt_ticket_cb = dec_cb;
7144 ctx->ticket_cb_data = arg;
7145 return 1;
7146}
7147
7148void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx,
7149 SSL_allow_early_data_cb_fn cb,
7150 void *arg)
7151{
7152 ctx->allow_early_data_cb = cb;
7153 ctx->allow_early_data_cb_data = arg;
7154}
7155
7156void SSL_set_allow_early_data_cb(SSL *s,
7157 SSL_allow_early_data_cb_fn cb,
7158 void *arg)
7159{
7160 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7161
7162 if (sc == NULL)
7163 return;
7164
7165 sc->allow_early_data_cb = cb;
7166 sc->allow_early_data_cb_data = arg;
7167}
7168
7169const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
7170 int nid,
7171 const char *properties)
7172{
7173 const EVP_CIPHER *ciph;
7174
7175 ciph = tls_get_cipher_from_engine(nid);
7176 if (ciph != NULL)
7177 return ciph;
7178
7179 /*
7180 * If there is no engine cipher then we do an explicit fetch. This may fail
7181 * and that could be ok
7182 */
7183 ERR_set_mark();
7184 ciph = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(nid), properties);
7185 ERR_pop_to_mark();
7186 return ciph;
7187}
7188
7189
7190int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher)
7191{
7192 /* Don't up-ref an implicit EVP_CIPHER */
7193 if (EVP_CIPHER_get0_provider(cipher) == NULL)
7194 return 1;
7195
7196 /*
7197 * The cipher was explicitly fetched and therefore it is safe to cast
7198 * away the const
7199 */
7200 return EVP_CIPHER_up_ref((EVP_CIPHER *)cipher);
7201}
7202
7203void ssl_evp_cipher_free(const EVP_CIPHER *cipher)
7204{
7205 if (cipher == NULL)
7206 return;
7207
7208 if (EVP_CIPHER_get0_provider(cipher) != NULL) {
7209 /*
7210 * The cipher was explicitly fetched and therefore it is safe to cast
7211 * away the const
7212 */
7213 EVP_CIPHER_free((EVP_CIPHER *)cipher);
7214 }
7215}
7216
7217const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
7218 int nid,
7219 const char *properties)
7220{
7221 const EVP_MD *md;
7222
7223 md = tls_get_digest_from_engine(nid);
7224 if (md != NULL)
7225 return md;
7226
7227 /* Otherwise we do an explicit fetch */
7228 ERR_set_mark();
7229 md = EVP_MD_fetch(libctx, OBJ_nid2sn(nid), properties);
7230 ERR_pop_to_mark();
7231 return md;
7232}
7233
7234int ssl_evp_md_up_ref(const EVP_MD *md)
7235{
7236 /* Don't up-ref an implicit EVP_MD */
7237 if (EVP_MD_get0_provider(md) == NULL)
7238 return 1;
7239
7240 /*
7241 * The digest was explicitly fetched and therefore it is safe to cast
7242 * away the const
7243 */
7244 return EVP_MD_up_ref((EVP_MD *)md);
7245}
7246
7247void ssl_evp_md_free(const EVP_MD *md)
7248{
7249 if (md == NULL)
7250 return;
7251
7252 if (EVP_MD_get0_provider(md) != NULL) {
7253 /*
7254 * The digest was explicitly fetched and therefore it is safe to cast
7255 * away the const
7256 */
7257 EVP_MD_free((EVP_MD *)md);
7258 }
7259}
7260
7261int SSL_set0_tmp_dh_pkey(SSL *s, EVP_PKEY *dhpkey)
7262{
7263 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7264
7265 if (sc == NULL)
7266 return 0;
7267
7268 if (!ssl_security(sc, SSL_SECOP_TMP_DH,
7269 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7270 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7271 return 0;
7272 }
7273 EVP_PKEY_free(sc->cert->dh_tmp);
7274 sc->cert->dh_tmp = dhpkey;
7275 return 1;
7276}
7277
7278int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX *ctx, EVP_PKEY *dhpkey)
7279{
7280 if (!ssl_ctx_security(ctx, SSL_SECOP_TMP_DH,
7281 EVP_PKEY_get_security_bits(dhpkey), 0, dhpkey)) {
7282 ERR_raise(ERR_LIB_SSL, SSL_R_DH_KEY_TOO_SMALL);
7283 return 0;
7284 }
7285 EVP_PKEY_free(ctx->cert->dh_tmp);
7286 ctx->cert->dh_tmp = dhpkey;
7287 return 1;
7288}
7289
7290/* QUIC-specific methods which are supported on QUIC connections only. */
7291int SSL_handle_events(SSL *s)
7292{
7293 SSL_CONNECTION *sc;
7294
7295#ifndef OPENSSL_NO_QUIC
7296 if (IS_QUIC(s))
7297 return ossl_quic_handle_events(s);
7298#endif
7299
7300 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7301 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc))
7302 /*
7303 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7304 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7305 * can also return 0 if s is NULL or not a DTLS object, but we've
7306 * already ruled out those possibilities above, so this is not possible
7307 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7308 * returns -1.
7309 */
7310 return DTLSv1_handle_timeout(s) >= 0;
7311
7312 return 1;
7313}
7314
7315int SSL_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite)
7316{
7317 SSL_CONNECTION *sc;
7318
7319#ifndef OPENSSL_NO_QUIC
7320 if (IS_QUIC(s))
7321 return ossl_quic_get_event_timeout(s, tv, is_infinite);
7322#endif
7323
7324 sc = SSL_CONNECTION_FROM_SSL_ONLY(s);
7325 if (sc != NULL && SSL_CONNECTION_IS_DTLS(sc)
7326 && DTLSv1_get_timeout(s, tv)) {
7327 *is_infinite = 0;
7328 return 1;
7329 }
7330
7331 tv->tv_sec = 1000000;
7332 tv->tv_usec = 0;
7333 *is_infinite = 1;
7334 return 1;
7335}
7336
7337int SSL_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7338{
7339 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7340
7341#ifndef OPENSSL_NO_QUIC
7342 if (IS_QUIC(s))
7343 return ossl_quic_get_rpoll_descriptor(s, desc);
7344#endif
7345
7346 if (sc == NULL || sc->rbio == NULL)
7347 return 0;
7348
7349 return BIO_get_rpoll_descriptor(sc->rbio, desc);
7350}
7351
7352int SSL_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc)
7353{
7354 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7355
7356#ifndef OPENSSL_NO_QUIC
7357 if (IS_QUIC(s))
7358 return ossl_quic_get_wpoll_descriptor(s, desc);
7359#endif
7360
7361 if (sc == NULL || sc->wbio == NULL)
7362 return 0;
7363
7364 return BIO_get_wpoll_descriptor(sc->wbio, desc);
7365}
7366
7367int SSL_net_read_desired(SSL *s)
7368{
7369#ifndef OPENSSL_NO_QUIC
7370 if (!IS_QUIC(s))
7371 return SSL_want_read(s);
7372
7373 return ossl_quic_get_net_read_desired(s);
7374#else
7375 return SSL_want_read(s);
7376#endif
7377}
7378
7379int SSL_net_write_desired(SSL *s)
7380{
7381#ifndef OPENSSL_NO_QUIC
7382 if (!IS_QUIC(s))
7383 return SSL_want_write(s);
7384
7385 return ossl_quic_get_net_write_desired(s);
7386#else
7387 return SSL_want_write(s);
7388#endif
7389}
7390
7391int SSL_set_blocking_mode(SSL *s, int blocking)
7392{
7393#ifndef OPENSSL_NO_QUIC
7394 if (!IS_QUIC(s))
7395 return 0;
7396
7397 return ossl_quic_conn_set_blocking_mode(s, blocking);
7398#else
7399 return 0;
7400#endif
7401}
7402
7403int SSL_get_blocking_mode(SSL *s)
7404{
7405#ifndef OPENSSL_NO_QUIC
7406 if (!IS_QUIC(s))
7407 return -1;
7408
7409 return ossl_quic_conn_get_blocking_mode(s);
7410#else
7411 return -1;
7412#endif
7413}
7414
7415int SSL_set1_initial_peer_addr(SSL *s, const BIO_ADDR *peer_addr)
7416{
7417#ifndef OPENSSL_NO_QUIC
7418 if (!IS_QUIC(s))
7419 return 0;
7420
7421 return ossl_quic_conn_set_initial_peer_addr(s, peer_addr);
7422#else
7423 return 0;
7424#endif
7425}
7426
7427int SSL_shutdown_ex(SSL *ssl, uint64_t flags,
7428 const SSL_SHUTDOWN_EX_ARGS *args,
7429 size_t args_len)
7430{
7431#ifndef OPENSSL_NO_QUIC
7432 if (!IS_QUIC(ssl))
7433 return SSL_shutdown(ssl);
7434
7435 return ossl_quic_conn_shutdown(ssl, flags, args, args_len);
7436#else
7437 return SSL_shutdown(ssl);
7438#endif
7439}
7440
7441int SSL_stream_conclude(SSL *ssl, uint64_t flags)
7442{
7443#ifndef OPENSSL_NO_QUIC
7444 if (!IS_QUIC(ssl))
7445 return 0;
7446
7447 return ossl_quic_conn_stream_conclude(ssl);
7448#else
7449 return 0;
7450#endif
7451}
7452
7453SSL *SSL_new_stream(SSL *s, uint64_t flags)
7454{
7455#ifndef OPENSSL_NO_QUIC
7456 if (!IS_QUIC(s))
7457 return NULL;
7458
7459 return ossl_quic_conn_stream_new(s, flags);
7460#else
7461 return NULL;
7462#endif
7463}
7464
7465SSL *SSL_get0_connection(SSL *s)
7466{
7467#ifndef OPENSSL_NO_QUIC
7468 if (!IS_QUIC(s))
7469 return s;
7470
7471 return ossl_quic_get0_connection(s);
7472#else
7473 return s;
7474#endif
7475}
7476
7477int SSL_is_connection(SSL *s)
7478{
7479 return SSL_get0_connection(s) == s;
7480}
7481
7482int SSL_get_stream_type(SSL *s)
7483{
7484#ifndef OPENSSL_NO_QUIC
7485 if (!IS_QUIC(s))
7486 return SSL_STREAM_TYPE_BIDI;
7487
7488 return ossl_quic_get_stream_type(s);
7489#else
7490 return SSL_STREAM_TYPE_BIDI;
7491#endif
7492}
7493
7494uint64_t SSL_get_stream_id(SSL *s)
7495{
7496#ifndef OPENSSL_NO_QUIC
7497 if (!IS_QUIC(s))
7498 return UINT64_MAX;
7499
7500 return ossl_quic_get_stream_id(s);
7501#else
7502 return UINT64_MAX;
7503#endif
7504}
7505
7506int SSL_is_stream_local(SSL *s)
7507{
7508#ifndef OPENSSL_NO_QUIC
7509 if (!IS_QUIC(s))
7510 return -1;
7511
7512 return ossl_quic_is_stream_local(s);
7513#else
7514 return -1;
7515#endif
7516}
7517
7518int SSL_set_default_stream_mode(SSL *s, uint32_t mode)
7519{
7520#ifndef OPENSSL_NO_QUIC
7521 if (!IS_QUIC(s))
7522 return 0;
7523
7524 return ossl_quic_set_default_stream_mode(s, mode);
7525#else
7526 return 0;
7527#endif
7528}
7529
7530int SSL_set_incoming_stream_policy(SSL *s, int policy, uint64_t aec)
7531{
7532#ifndef OPENSSL_NO_QUIC
7533 if (!IS_QUIC(s))
7534 return 0;
7535
7536 return ossl_quic_set_incoming_stream_policy(s, policy, aec);
7537#else
7538 return 0;
7539#endif
7540}
7541
7542SSL *SSL_accept_stream(SSL *s, uint64_t flags)
7543{
7544#ifndef OPENSSL_NO_QUIC
7545 if (!IS_QUIC(s))
7546 return NULL;
7547
7548 return ossl_quic_accept_stream(s, flags);
7549#else
7550 return NULL;
7551#endif
7552}
7553
7554size_t SSL_get_accept_stream_queue_len(SSL *s)
7555{
7556#ifndef OPENSSL_NO_QUIC
7557 if (!IS_QUIC(s))
7558 return 0;
7559
7560 return ossl_quic_get_accept_stream_queue_len(s);
7561#else
7562 return 0;
7563#endif
7564}
7565
7566int SSL_stream_reset(SSL *s,
7567 const SSL_STREAM_RESET_ARGS *args,
7568 size_t args_len)
7569{
7570#ifndef OPENSSL_NO_QUIC
7571 if (!IS_QUIC(s))
7572 return 0;
7573
7574 return ossl_quic_stream_reset(s, args, args_len);
7575#else
7576 return 0;
7577#endif
7578}
7579
7580int SSL_get_stream_read_state(SSL *s)
7581{
7582#ifndef OPENSSL_NO_QUIC
7583 if (!IS_QUIC(s))
7584 return SSL_STREAM_STATE_NONE;
7585
7586 return ossl_quic_get_stream_read_state(s);
7587#else
7588 return SSL_STREAM_STATE_NONE;
7589#endif
7590}
7591
7592int SSL_get_stream_write_state(SSL *s)
7593{
7594#ifndef OPENSSL_NO_QUIC
7595 if (!IS_QUIC(s))
7596 return SSL_STREAM_STATE_NONE;
7597
7598 return ossl_quic_get_stream_write_state(s);
7599#else
7600 return SSL_STREAM_STATE_NONE;
7601#endif
7602}
7603
7604int SSL_get_stream_read_error_code(SSL *s, uint64_t *app_error_code)
7605{
7606#ifndef OPENSSL_NO_QUIC
7607 if (!IS_QUIC(s))
7608 return -1;
7609
7610 return ossl_quic_get_stream_read_error_code(s, app_error_code);
7611#else
7612 return -1;
7613#endif
7614}
7615
7616int SSL_get_stream_write_error_code(SSL *s, uint64_t *app_error_code)
7617{
7618#ifndef OPENSSL_NO_QUIC
7619 if (!IS_QUIC(s))
7620 return -1;
7621
7622 return ossl_quic_get_stream_write_error_code(s, app_error_code);
7623#else
7624 return -1;
7625#endif
7626}
7627
7628int SSL_get_conn_close_info(SSL *s, SSL_CONN_CLOSE_INFO *info,
7629 size_t info_len)
7630{
7631#ifndef OPENSSL_NO_QUIC
7632 if (!IS_QUIC(s))
7633 return -1;
7634
7635 return ossl_quic_get_conn_close_info(s, info, info_len);
7636#else
7637 return -1;
7638#endif
7639}
7640
7641int SSL_get_value_uint(SSL *s, uint32_t class_, uint32_t id,
7642 uint64_t *value)
7643{
7644#ifndef OPENSSL_NO_QUIC
7645 if (IS_QUIC(s))
7646 return ossl_quic_get_value_uint(s, class_, id, value);
7647#endif
7648
7649 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_PROTOCOL);
7650 return 0;
7651}
7652
7653int SSL_set_value_uint(SSL *s, uint32_t class_, uint32_t id,
7654 uint64_t value)
7655{
7656#ifndef OPENSSL_NO_QUIC
7657 if (IS_QUIC(s))
7658 return ossl_quic_set_value_uint(s, class_, id, value);
7659#endif
7660
7661 ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_PROTOCOL);
7662 return 0;
7663}
7664
7665int SSL_add_expected_rpk(SSL *s, EVP_PKEY *rpk)
7666{
7667 unsigned char *data = NULL;
7668 SSL_DANE *dane = SSL_get0_dane(s);
7669 int ret;
7670
7671 if (dane == NULL || dane->dctx == NULL)
7672 return 0;
7673 if ((ret = i2d_PUBKEY(rpk, &data)) <= 0)
7674 return 0;
7675
7676 ret = SSL_dane_tlsa_add(s, DANETLS_USAGE_DANE_EE,
7677 DANETLS_SELECTOR_SPKI,
7678 DANETLS_MATCHING_FULL,
7679 data, (size_t)ret) > 0;
7680 OPENSSL_free(data);
7681 return ret;
7682}
7683
7684EVP_PKEY *SSL_get0_peer_rpk(const SSL *s)
7685{
7686 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7687
7688 if (sc == NULL || sc->session == NULL)
7689 return NULL;
7690 return sc->session->peer_rpk;
7691}
7692
7693int SSL_get_negotiated_client_cert_type(const SSL *s)
7694{
7695 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7696
7697 if (sc == NULL)
7698 return 0;
7699
7700 return sc->ext.client_cert_type;
7701}
7702
7703int SSL_get_negotiated_server_cert_type(const SSL *s)
7704{
7705 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7706
7707 if (sc == NULL)
7708 return 0;
7709
7710 return sc->ext.server_cert_type;
7711}
7712
7713static int validate_cert_type(const unsigned char *val, size_t len)
7714{
7715 size_t i;
7716 int saw_rpk = 0;
7717 int saw_x509 = 0;
7718
7719 if (val == NULL && len == 0)
7720 return 1;
7721
7722 if (val == NULL || len == 0)
7723 return 0;
7724
7725 for (i = 0; i < len; i++) {
7726 switch (val[i]) {
7727 case TLSEXT_cert_type_rpk:
7728 if (saw_rpk)
7729 return 0;
7730 saw_rpk = 1;
7731 break;
7732 case TLSEXT_cert_type_x509:
7733 if (saw_x509)
7734 return 0;
7735 saw_x509 = 1;
7736 break;
7737 case TLSEXT_cert_type_pgp:
7738 case TLSEXT_cert_type_1609dot2:
7739 default:
7740 return 0;
7741 }
7742 }
7743 return 1;
7744}
7745
7746static int set_cert_type(unsigned char **cert_type,
7747 size_t *cert_type_len,
7748 const unsigned char *val,
7749 size_t len)
7750{
7751 unsigned char *tmp = NULL;
7752
7753 if (!validate_cert_type(val, len))
7754 return 0;
7755
7756 if (val != NULL && (tmp = OPENSSL_memdup(val, len)) == NULL)
7757 return 0;
7758
7759 OPENSSL_free(*cert_type);
7760 *cert_type = tmp;
7761 *cert_type_len = len;
7762 return 1;
7763}
7764
7765int SSL_set1_client_cert_type(SSL *s, const unsigned char *val, size_t len)
7766{
7767 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7768
7769 return set_cert_type(&sc->client_cert_type, &sc->client_cert_type_len,
7770 val, len);
7771}
7772
7773int SSL_set1_server_cert_type(SSL *s, const unsigned char *val, size_t len)
7774{
7775 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
7776
7777 return set_cert_type(&sc->server_cert_type, &sc->server_cert_type_len,
7778 val, len);
7779}
7780
7781int SSL_CTX_set1_client_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7782{
7783 return set_cert_type(&ctx->client_cert_type, &ctx->client_cert_type_len,
7784 val, len);
7785}
7786
7787int SSL_CTX_set1_server_cert_type(SSL_CTX *ctx, const unsigned char *val, size_t len)
7788{
7789 return set_cert_type(&ctx->server_cert_type, &ctx->server_cert_type_len,
7790 val, len);
7791}
7792
7793int SSL_get0_client_cert_type(const SSL *s, unsigned char **t, size_t *len)
7794{
7795 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7796
7797 if (t == NULL || len == NULL)
7798 return 0;
7799
7800 *t = sc->client_cert_type;
7801 *len = sc->client_cert_type_len;
7802 return 1;
7803}
7804
7805int SSL_get0_server_cert_type(const SSL *s, unsigned char **t, size_t *len)
7806{
7807 const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);
7808
7809 if (t == NULL || len == NULL)
7810 return 0;
7811
7812 *t = sc->server_cert_type;
7813 *len = sc->server_cert_type_len;
7814 return 1;
7815}
7816
7817int SSL_CTX_get0_client_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7818{
7819 if (t == NULL || len == NULL)
7820 return 0;
7821
7822 *t = ctx->client_cert_type;
7823 *len = ctx->client_cert_type_len;
7824 return 1;
7825}
7826
7827int SSL_CTX_get0_server_cert_type(const SSL_CTX *ctx, unsigned char **t, size_t *len)
7828{
7829 if (t == NULL || len == NULL)
7830 return 0;
7831
7832 *t = ctx->server_cert_type;
7833 *len = ctx->server_cert_type_len;
7834 return 1;
7835}
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