2 * Copyright 1995-2023 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.
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
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"
31 static int ssl_undefined_function_3(SSL_CONNECTION
*sc
, unsigned char *r
,
32 unsigned char *s
, size_t t
, size_t *u
)
34 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
37 static int ssl_undefined_function_4(SSL_CONNECTION
*sc
, int r
)
39 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
42 static size_t ssl_undefined_function_5(SSL_CONNECTION
*sc
, const char *r
,
43 size_t s
, unsigned char *t
)
45 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
48 static int ssl_undefined_function_6(int r
)
50 return ssl_undefined_function(NULL
);
53 static 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
)
57 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
60 static int ssl_undefined_function_8(SSL_CONNECTION
*sc
)
62 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
65 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
,
78 struct ssl_async_args
{
82 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
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
*);
96 DANETLS_MATCHING_FULL
, 0, NID_undef
99 DANETLS_MATCHING_2256
, 1, NID_sha256
102 DANETLS_MATCHING_2512
, 2, NID_sha512
106 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
108 const EVP_MD
**mdevp
;
110 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
111 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
114 if (dctx
->mdevp
!= NULL
)
117 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
118 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
120 if (mdord
== NULL
|| mdevp
== NULL
) {
126 /* Install default entries */
127 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
130 if (dane_mds
[i
].nid
== NID_undef
||
131 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
133 mdevp
[dane_mds
[i
].mtype
] = md
;
134 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
144 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
146 OPENSSL_free(dctx
->mdevp
);
149 OPENSSL_free(dctx
->mdord
);
154 static void tlsa_free(danetls_record
*t
)
158 OPENSSL_free(t
->data
);
159 EVP_PKEY_free(t
->spki
);
163 static void dane_final(SSL_DANE
*dane
)
165 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
168 OSSL_STACK_OF_X509_free(dane
->certs
);
171 X509_free(dane
->mcert
);
179 * dane_copy - Copy dane configuration, sans verification state.
181 static int ssl_dane_dup(SSL_CONNECTION
*to
, SSL_CONNECTION
*from
)
186 if (!DANETLS_ENABLED(&from
->dane
))
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
);
195 if (to
->dane
.trecs
== NULL
) {
196 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
200 for (i
= 0; i
< num
; ++i
) {
201 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
203 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to
), t
->usage
,
204 t
->selector
, t
->mtype
, t
->data
, t
->dlen
) <= 0)
210 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
211 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
215 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
216 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
220 if (mtype
> dctx
->mdmax
) {
221 const EVP_MD
**mdevp
;
223 int n
= ((int)mtype
) + 1;
225 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
230 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
235 /* Zero-fill any gaps */
236 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
244 dctx
->mdevp
[mtype
] = md
;
245 /* Coerce ordinal of disabled matching types to 0 */
246 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
251 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
253 if (mtype
> dane
->dctx
->mdmax
)
255 return dane
->dctx
->mdevp
[mtype
];
258 static int dane_tlsa_add(SSL_DANE
*dane
,
261 uint8_t mtype
, const unsigned char *data
, size_t dlen
)
264 const EVP_MD
*md
= NULL
;
265 int ilen
= (int)dlen
;
269 if (dane
->trecs
== NULL
) {
270 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_NOT_ENABLED
);
274 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
275 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
279 if (usage
> DANETLS_USAGE_LAST
) {
280 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
284 if (selector
> DANETLS_SELECTOR_LAST
) {
285 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
289 if (mtype
!= DANETLS_MATCHING_FULL
) {
290 md
= tlsa_md_get(dane
, mtype
);
292 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
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
);
302 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_NULL_DATA
);
306 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
)
310 t
->selector
= selector
;
312 t
->data
= OPENSSL_malloc(dlen
);
313 if (t
->data
== NULL
) {
317 memcpy(t
->data
, data
, dlen
);
320 /* Validate and cache full certificate or public key */
321 if (mtype
== DANETLS_MATCHING_FULL
) {
322 const unsigned char *p
= data
;
324 EVP_PKEY
*pkey
= NULL
;
327 case DANETLS_SELECTOR_CERT
:
328 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
329 dlen
!= (size_t)(p
- data
)) {
331 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
334 if (X509_get0_pubkey(cert
) == NULL
) {
336 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
340 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
346 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
347 * records that contain full certificates of trust-anchors that are
348 * not present in the wire chain. For usage PKIX-TA(0), we augment
349 * the chain with untrusted Full(0) certificates from DNS, in case
350 * they are missing from the chain.
352 if ((dane
->certs
== NULL
&&
353 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
354 !sk_X509_push(dane
->certs
, cert
)) {
355 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
362 case DANETLS_SELECTOR_SPKI
:
363 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
364 dlen
!= (size_t)(p
- data
)) {
366 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
371 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
372 * records that contain full bare keys of trust-anchors that are
373 * not present in the wire chain.
375 if (usage
== DANETLS_USAGE_DANE_TA
)
384 * Find the right insertion point for the new record.
386 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
387 * they can be processed first, as they require no chain building, and no
388 * expiration or hostname checks. Because DANE-EE(3) is numerically
389 * largest, this is accomplished via descending sort by "usage".
391 * We also sort in descending order by matching ordinal to simplify
392 * the implementation of digest agility in the verification code.
394 * The choice of order for the selector is not significant, so we
395 * use the same descending order for consistency.
397 num
= sk_danetls_record_num(dane
->trecs
);
398 for (i
= 0; i
< num
; ++i
) {
399 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
401 if (rec
->usage
> usage
)
403 if (rec
->usage
< usage
)
405 if (rec
->selector
> selector
)
407 if (rec
->selector
< selector
)
409 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
414 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
416 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
419 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
425 * Return 0 if there is only one version configured and it was disabled
426 * at configure time. Return 1 otherwise.
428 static int ssl_check_allowed_versions(int min_version
, int max_version
)
430 int minisdtls
= 0, maxisdtls
= 0;
432 /* Figure out if we're doing DTLS versions or TLS versions */
433 if (min_version
== DTLS1_BAD_VER
434 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
436 if (max_version
== DTLS1_BAD_VER
437 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
439 /* A wildcard version of 0 could be DTLS or TLS. */
440 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
441 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
442 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
446 if (minisdtls
|| maxisdtls
) {
447 /* Do DTLS version checks. */
448 if (min_version
== 0)
449 /* Ignore DTLS1_BAD_VER */
450 min_version
= DTLS1_VERSION
;
451 if (max_version
== 0)
452 max_version
= DTLS1_2_VERSION
;
453 #ifdef OPENSSL_NO_DTLS1_2
454 if (max_version
== DTLS1_2_VERSION
)
455 max_version
= DTLS1_VERSION
;
457 #ifdef OPENSSL_NO_DTLS1
458 if (min_version
== DTLS1_VERSION
)
459 min_version
= DTLS1_2_VERSION
;
461 /* Done massaging versions; do the check. */
463 #ifdef OPENSSL_NO_DTLS1
464 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
465 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
467 #ifdef OPENSSL_NO_DTLS1_2
468 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
469 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
474 /* Regular TLS version checks. */
475 if (min_version
== 0)
476 min_version
= SSL3_VERSION
;
477 if (max_version
== 0)
478 max_version
= TLS1_3_VERSION
;
479 #ifdef OPENSSL_NO_TLS1_3
480 if (max_version
== TLS1_3_VERSION
)
481 max_version
= TLS1_2_VERSION
;
483 #ifdef OPENSSL_NO_TLS1_2
484 if (max_version
== TLS1_2_VERSION
)
485 max_version
= TLS1_1_VERSION
;
487 #ifdef OPENSSL_NO_TLS1_1
488 if (max_version
== TLS1_1_VERSION
)
489 max_version
= TLS1_VERSION
;
491 #ifdef OPENSSL_NO_TLS1
492 if (max_version
== TLS1_VERSION
)
493 max_version
= SSL3_VERSION
;
495 #ifdef OPENSSL_NO_SSL3
496 if (min_version
== SSL3_VERSION
)
497 min_version
= TLS1_VERSION
;
499 #ifdef OPENSSL_NO_TLS1
500 if (min_version
== TLS1_VERSION
)
501 min_version
= TLS1_1_VERSION
;
503 #ifdef OPENSSL_NO_TLS1_1
504 if (min_version
== TLS1_1_VERSION
)
505 min_version
= TLS1_2_VERSION
;
507 #ifdef OPENSSL_NO_TLS1_2
508 if (min_version
== TLS1_2_VERSION
)
509 min_version
= TLS1_3_VERSION
;
511 /* Done massaging versions; do the check. */
513 #ifdef OPENSSL_NO_SSL3
514 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
516 #ifdef OPENSSL_NO_TLS1
517 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
519 #ifdef OPENSSL_NO_TLS1_1
520 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
522 #ifdef OPENSSL_NO_TLS1_2
523 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
525 #ifdef OPENSSL_NO_TLS1_3
526 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
534 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
536 * Define a VPROC function for HP NonStop build ssl library.
537 * This is used by platform version identification tools.
538 * Do not inline this procedure or make it static.
540 # define OPENSSL_VPROC_STRING_(x) x##_SSL
541 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
542 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
543 void OPENSSL_VPROC_FUNC(void) {}
546 static int clear_record_layer(SSL_CONNECTION
*s
)
550 /* We try and reset both record layers even if one fails */
552 ret
= ssl_set_new_record_layer(s
,
553 SSL_CONNECTION_IS_DTLS(s
) ? DTLS_ANY_VERSION
555 OSSL_RECORD_DIRECTION_READ
,
556 OSSL_RECORD_PROTECTION_LEVEL_NONE
, NULL
, 0,
557 NULL
, 0, NULL
, 0, NULL
, 0, NULL
, 0,
558 NID_undef
, NULL
, NULL
, NULL
);
560 ret
&= ssl_set_new_record_layer(s
,
561 SSL_CONNECTION_IS_DTLS(s
) ? DTLS_ANY_VERSION
563 OSSL_RECORD_DIRECTION_WRITE
,
564 OSSL_RECORD_PROTECTION_LEVEL_NONE
, NULL
, 0,
565 NULL
, 0, NULL
, 0, NULL
, 0, NULL
, 0,
566 NID_undef
, NULL
, NULL
, NULL
);
568 /* SSLfatal already called in the event of failure */
572 int SSL_clear(SSL
*s
)
574 if (s
->method
== NULL
) {
575 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_METHOD_SPECIFIED
);
579 return s
->method
->ssl_reset(s
);
582 int ossl_ssl_connection_reset(SSL
*s
)
584 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
589 if (ssl_clear_bad_session(sc
)) {
590 SSL_SESSION_free(sc
->session
);
593 SSL_SESSION_free(sc
->psksession
);
594 sc
->psksession
= NULL
;
595 OPENSSL_free(sc
->psksession_id
);
596 sc
->psksession_id
= NULL
;
597 sc
->psksession_id_len
= 0;
598 sc
->hello_retry_request
= 0;
599 sc
->sent_tickets
= 0;
605 if (sc
->renegotiate
) {
606 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
610 ossl_statem_clear(sc
);
612 /* TODO(QUIC): Version handling not yet clear */
613 sc
->version
= s
->method
->version
;
614 sc
->client_version
= sc
->version
;
615 sc
->rwstate
= SSL_NOTHING
;
617 BUF_MEM_free(sc
->init_buf
);
619 sc
->first_packet
= 0;
621 sc
->key_update
= SSL_KEY_UPDATE_NONE
;
622 memset(sc
->ext
.compress_certificate_from_peer
, 0,
623 sizeof(sc
->ext
.compress_certificate_from_peer
));
624 sc
->ext
.compress_certificate_sent
= 0;
626 EVP_MD_CTX_free(sc
->pha_dgst
);
629 /* Reset DANE verification result state */
632 X509_free(sc
->dane
.mcert
);
633 sc
->dane
.mcert
= NULL
;
634 sc
->dane
.mtlsa
= NULL
;
636 /* Clear the verification result peername */
637 X509_VERIFY_PARAM_move_peername(sc
->param
, NULL
);
639 /* Clear any shared connection state */
640 OPENSSL_free(sc
->shared_sigalgs
);
641 sc
->shared_sigalgs
= NULL
;
642 sc
->shared_sigalgslen
= 0;
645 * Check to see if we were changed into a different method, if so, revert
648 if (s
->method
!= s
->defltmeth
) {
649 s
->method
->ssl_deinit(s
);
650 s
->method
= s
->defltmeth
;
651 if (!s
->method
->ssl_init(s
))
654 if (!s
->method
->ssl_clear(s
))
658 RECORD_LAYER_clear(&sc
->rlayer
);
659 BIO_free(sc
->rlayer
.rrlnext
);
660 sc
->rlayer
.rrlnext
= NULL
;
662 if (!clear_record_layer(sc
))
668 #ifndef OPENSSL_NO_DEPRECATED_3_0
669 /** Used to change an SSL_CTXs default SSL method type */
670 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
672 STACK_OF(SSL_CIPHER
) *sk
;
676 if (!SSL_CTX_set_ciphersuites(ctx
, OSSL_default_ciphersuites())) {
677 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
680 sk
= ssl_create_cipher_list(ctx
,
681 ctx
->tls13_ciphersuites
,
683 &(ctx
->cipher_list_by_id
),
684 OSSL_default_cipher_list(), ctx
->cert
);
685 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
686 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
693 SSL
*SSL_new(SSL_CTX
*ctx
)
696 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_CTX
);
699 if (ctx
->method
== NULL
) {
700 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
703 return ctx
->method
->ssl_new(ctx
);
706 int ossl_ssl_init(SSL
*ssl
, SSL_CTX
*ctx
, const SSL_METHOD
*method
, int type
)
711 ssl
->lock
= CRYPTO_THREAD_lock_new();
712 if (ssl
->lock
== NULL
)
715 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, ssl
, &ssl
->ex_data
)) {
716 CRYPTO_THREAD_lock_free(ssl
->lock
);
724 ssl
->defltmeth
= ssl
->method
= method
;
729 SSL
*ossl_ssl_connection_new_int(SSL_CTX
*ctx
, const SSL_METHOD
*method
)
734 s
= OPENSSL_zalloc(sizeof(*s
));
739 if (!ossl_ssl_init(ssl
, ctx
, method
, SSL_TYPE_SSL_CONNECTION
)) {
746 RECORD_LAYER_init(&s
->rlayer
, s
);
748 s
->options
= ctx
->options
;
749 s
->dane
.flags
= ctx
->dane
.flags
;
750 if (method
->version
== ctx
->method
->version
) {
751 s
->min_proto_version
= ctx
->min_proto_version
;
752 s
->max_proto_version
= ctx
->max_proto_version
;
755 s
->max_cert_list
= ctx
->max_cert_list
;
756 s
->max_early_data
= ctx
->max_early_data
;
757 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
758 s
->num_tickets
= ctx
->num_tickets
;
759 s
->pha_enabled
= ctx
->pha_enabled
;
761 /* Shallow copy of the ciphersuites stack */
762 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
763 if (s
->tls13_ciphersuites
== NULL
)
767 * Earlier library versions used to copy the pointer to the CERT, not
768 * its contents; only when setting new parameters for the per-SSL
769 * copy, ssl_cert_new would be called (and the direct reference to
770 * the per-SSL_CTX settings would be lost, but those still were
771 * indirectly accessed for various purposes, and for that reason they
772 * used to be known as s->ctx->default_cert). Now we don't look at the
773 * SSL_CTX's CERT after having duplicated it once.
775 s
->cert
= ssl_cert_dup(ctx
->cert
);
779 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
780 s
->msg_callback
= ctx
->msg_callback
;
781 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
782 s
->verify_mode
= ctx
->verify_mode
;
783 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
784 s
->rlayer
.record_padding_cb
= ctx
->record_padding_cb
;
785 s
->rlayer
.record_padding_arg
= ctx
->record_padding_arg
;
786 s
->rlayer
.block_padding
= ctx
->block_padding
;
787 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
788 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
790 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
791 s
->verify_callback
= ctx
->default_verify_callback
;
792 s
->generate_session_id
= ctx
->generate_session_id
;
794 s
->param
= X509_VERIFY_PARAM_new();
795 if (s
->param
== NULL
)
797 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
798 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
800 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
801 s
->max_send_fragment
= ctx
->max_send_fragment
;
802 s
->split_send_fragment
= ctx
->split_send_fragment
;
803 s
->max_pipelines
= ctx
->max_pipelines
;
804 s
->rlayer
.default_read_buf_len
= ctx
->default_read_buf_len
;
807 s
->ext
.debug_arg
= NULL
;
808 s
->ext
.ticket_expected
= 0;
809 s
->ext
.status_type
= ctx
->ext
.status_type
;
810 s
->ext
.status_expected
= 0;
811 s
->ext
.ocsp
.ids
= NULL
;
812 s
->ext
.ocsp
.exts
= NULL
;
813 s
->ext
.ocsp
.resp
= NULL
;
814 s
->ext
.ocsp
.resp_len
= 0;
816 s
->session_ctx
= ctx
;
817 if (ctx
->ext
.ecpointformats
) {
818 s
->ext
.ecpointformats
=
819 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
820 ctx
->ext
.ecpointformats_len
);
821 if (!s
->ext
.ecpointformats
) {
822 s
->ext
.ecpointformats_len
= 0;
825 s
->ext
.ecpointformats_len
=
826 ctx
->ext
.ecpointformats_len
;
828 if (ctx
->ext
.supportedgroups
) {
829 s
->ext
.supportedgroups
=
830 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
831 ctx
->ext
.supportedgroups_len
832 * sizeof(*ctx
->ext
.supportedgroups
));
833 if (!s
->ext
.supportedgroups
) {
834 s
->ext
.supportedgroups_len
= 0;
837 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
840 #ifndef OPENSSL_NO_NEXTPROTONEG
844 if (ctx
->ext
.alpn
!= NULL
) {
845 s
->ext
.alpn
= OPENSSL_malloc(ctx
->ext
.alpn_len
);
846 if (s
->ext
.alpn
== NULL
) {
850 memcpy(s
->ext
.alpn
, ctx
->ext
.alpn
, ctx
->ext
.alpn_len
);
851 s
->ext
.alpn_len
= ctx
->ext
.alpn_len
;
854 s
->verified_chain
= NULL
;
855 s
->verify_result
= X509_V_OK
;
857 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
858 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
860 s
->key_update
= SSL_KEY_UPDATE_NONE
;
862 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
863 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
865 if (!method
->ssl_init(ssl
))
868 s
->server
= (method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
870 if (!method
->ssl_reset(ssl
))
873 #ifndef OPENSSL_NO_PSK
874 s
->psk_client_callback
= ctx
->psk_client_callback
;
875 s
->psk_server_callback
= ctx
->psk_server_callback
;
877 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
878 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
880 s
->async_cb
= ctx
->async_cb
;
881 s
->async_cb_arg
= ctx
->async_cb_arg
;
885 #ifndef OPENSSL_NO_COMP_ALG
886 memcpy(s
->cert_comp_prefs
, ctx
->cert_comp_prefs
, sizeof(s
->cert_comp_prefs
));
888 if (ctx
->client_cert_type
!= NULL
) {
889 s
->client_cert_type
= OPENSSL_memdup(ctx
->client_cert_type
,
890 ctx
->client_cert_type_len
);
891 if (s
->client_cert_type
== NULL
)
893 s
->client_cert_type_len
= ctx
->client_cert_type_len
;
895 if (ctx
->server_cert_type
!= NULL
) {
896 s
->server_cert_type
= OPENSSL_memdup(ctx
->server_cert_type
,
897 ctx
->server_cert_type_len
);
898 if (s
->server_cert_type
== NULL
)
900 s
->server_cert_type_len
= ctx
->server_cert_type_len
;
903 #ifndef OPENSSL_NO_CT
904 if (!SSL_set_ct_validation_callback(ssl
, ctx
->ct_validation_callback
,
905 ctx
->ct_validation_callback_arg
))
909 s
->ssl_pkey_num
= SSL_PKEY_NUM
+ ctx
->sigalg_list_len
;
912 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
915 ERR_raise(ERR_LIB_SSL
, ERR_R_ASN1_LIB
);
918 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
924 SSL
*ossl_ssl_connection_new(SSL_CTX
*ctx
)
926 return ossl_ssl_connection_new_int(ctx
, ctx
->method
);
929 int SSL_is_dtls(const SSL
*s
)
931 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
933 #ifndef OPENSSL_NO_QUIC
934 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
941 return SSL_CONNECTION_IS_DTLS(sc
) ? 1 : 0;
944 int SSL_is_tls(const SSL
*s
)
946 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
948 #ifndef OPENSSL_NO_QUIC
949 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
956 return SSL_CONNECTION_IS_DTLS(sc
) ? 0 : 1;
959 int SSL_is_quic(const SSL
*s
)
961 #ifndef OPENSSL_NO_QUIC
962 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
968 int SSL_up_ref(SSL
*s
)
972 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
975 REF_PRINT_COUNT("SSL", s
);
976 REF_ASSERT_ISNT(i
< 2);
977 return ((i
> 1) ? 1 : 0);
980 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
981 unsigned int sid_ctx_len
)
983 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
984 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
987 ctx
->sid_ctx_length
= sid_ctx_len
;
988 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
993 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
994 unsigned int sid_ctx_len
)
996 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1001 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
1002 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
1005 sc
->sid_ctx_length
= sid_ctx_len
;
1006 memcpy(sc
->sid_ctx
, sid_ctx
, sid_ctx_len
);
1011 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
1013 if (!CRYPTO_THREAD_write_lock(ctx
->lock
))
1015 ctx
->generate_session_id
= cb
;
1016 CRYPTO_THREAD_unlock(ctx
->lock
);
1020 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
1022 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1024 if (sc
== NULL
|| !CRYPTO_THREAD_write_lock(ssl
->lock
))
1026 sc
->generate_session_id
= cb
;
1027 CRYPTO_THREAD_unlock(ssl
->lock
);
1031 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
1032 unsigned int id_len
)
1035 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1036 * we can "construct" a session to give us the desired check - i.e. to
1037 * find if there's a session in the hash table that would conflict with
1038 * any new session built out of this id/id_len and the ssl_version in use
1042 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
1044 if (sc
== NULL
|| id_len
> sizeof(r
.session_id
))
1047 r
.ssl_version
= sc
->version
;
1048 r
.session_id_length
= id_len
;
1049 memcpy(r
.session_id
, id
, id_len
);
1051 if (!CRYPTO_THREAD_read_lock(sc
->session_ctx
->lock
))
1053 p
= lh_SSL_SESSION_retrieve(sc
->session_ctx
->sessions
, &r
);
1054 CRYPTO_THREAD_unlock(sc
->session_ctx
->lock
);
1058 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
1060 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
1063 int SSL_set_purpose(SSL
*s
, int purpose
)
1065 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1070 return X509_VERIFY_PARAM_set_purpose(sc
->param
, purpose
);
1073 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
1075 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
1078 int SSL_set_trust(SSL
*s
, int trust
)
1080 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1085 return X509_VERIFY_PARAM_set_trust(sc
->param
, trust
);
1088 int SSL_set1_host(SSL
*s
, const char *hostname
)
1090 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1095 /* If a hostname is provided and parses as an IP address,
1096 * treat it as such. */
1097 if (hostname
!= NULL
1098 && X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
) == 1)
1101 return X509_VERIFY_PARAM_set1_host(sc
->param
, hostname
, 0);
1104 int SSL_add1_host(SSL
*s
, const char *hostname
)
1106 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1111 /* If a hostname is provided and parses as an IP address,
1112 * treat it as such. */
1115 ASN1_OCTET_STRING
*ip
;
1118 ip
= a2i_IPADDRESS(hostname
);
1120 /* We didn't want it; only to check if it *is* an IP address */
1121 ASN1_OCTET_STRING_free(ip
);
1123 old_ip
= X509_VERIFY_PARAM_get1_ip_asc(sc
->param
);
1126 OPENSSL_free(old_ip
);
1127 /* There can be only one IP address */
1131 return X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
);
1135 return X509_VERIFY_PARAM_add1_host(sc
->param
, hostname
, 0);
1138 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
1140 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1145 X509_VERIFY_PARAM_set_hostflags(sc
->param
, flags
);
1148 const char *SSL_get0_peername(SSL
*s
)
1150 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1155 return X509_VERIFY_PARAM_get0_peername(sc
->param
);
1158 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
1160 return dane_ctx_enable(&ctx
->dane
);
1163 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
1165 unsigned long orig
= ctx
->dane
.flags
;
1167 ctx
->dane
.flags
|= flags
;
1171 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
1173 unsigned long orig
= ctx
->dane
.flags
;
1175 ctx
->dane
.flags
&= ~flags
;
1179 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1182 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1188 if (s
->ctx
->dane
.mdmax
== 0) {
1189 ERR_raise(ERR_LIB_SSL
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1192 if (dane
->trecs
!= NULL
) {
1193 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_ALREADY_ENABLED
);
1198 * Default SNI name. This rejects empty names, while set1_host below
1199 * accepts them and disables hostname checks. To avoid side-effects with
1200 * invalid input, set the SNI name first.
1202 if (sc
->ext
.hostname
== NULL
) {
1203 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1204 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1209 /* Primary RFC6125 reference identifier */
1210 if (!X509_VERIFY_PARAM_set1_host(sc
->param
, basedomain
, 0)) {
1211 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1217 dane
->dctx
= &s
->ctx
->dane
;
1218 dane
->trecs
= sk_danetls_record_new_null();
1220 if (dane
->trecs
== NULL
) {
1221 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
1227 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1230 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1235 orig
= sc
->dane
.flags
;
1237 sc
->dane
.flags
|= flags
;
1241 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1244 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1249 orig
= sc
->dane
.flags
;
1251 sc
->dane
.flags
&= ~flags
;
1255 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1258 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1265 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1269 *mcert
= dane
->mcert
;
1271 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1276 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1277 uint8_t *mtype
, const unsigned char **data
, size_t *dlen
)
1280 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1287 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1291 *usage
= dane
->mtlsa
->usage
;
1293 *selector
= dane
->mtlsa
->selector
;
1295 *mtype
= dane
->mtlsa
->mtype
;
1297 *data
= dane
->mtlsa
->data
;
1299 *dlen
= dane
->mtlsa
->dlen
;
1304 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1306 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1314 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1315 uint8_t mtype
, const unsigned char *data
, size_t dlen
)
1317 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1322 return dane_tlsa_add(&sc
->dane
, usage
, selector
, mtype
, data
, dlen
);
1325 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1328 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1331 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1333 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1336 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1338 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1343 return X509_VERIFY_PARAM_set1(sc
->param
, vpm
);
1346 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1351 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1353 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1361 void SSL_certs_clear(SSL
*s
)
1363 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1368 ssl_cert_clear_certs(sc
->cert
);
1371 void SSL_free(SSL
*s
)
1377 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1378 REF_PRINT_COUNT("SSL", s
);
1381 REF_ASSERT_ISNT(i
< 0);
1383 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1385 if (s
->method
!= NULL
)
1386 s
->method
->ssl_free(s
);
1388 SSL_CTX_free(s
->ctx
);
1389 CRYPTO_THREAD_lock_free(s
->lock
);
1394 void ossl_ssl_connection_free(SSL
*ssl
)
1398 s
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
1402 X509_VERIFY_PARAM_free(s
->param
);
1403 dane_final(&s
->dane
);
1405 /* Ignore return value */
1406 ssl_free_wbio_buffer(s
);
1408 RECORD_LAYER_clear(&s
->rlayer
);
1410 BUF_MEM_free(s
->init_buf
);
1412 /* add extra stuff */
1413 sk_SSL_CIPHER_free(s
->cipher_list
);
1414 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1415 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1416 sk_SSL_CIPHER_free(s
->peer_ciphers
);
1418 /* Make the next call work :-) */
1419 if (s
->session
!= NULL
) {
1420 ssl_clear_bad_session(s
);
1421 SSL_SESSION_free(s
->session
);
1423 SSL_SESSION_free(s
->psksession
);
1424 OPENSSL_free(s
->psksession_id
);
1426 ssl_cert_free(s
->cert
);
1427 OPENSSL_free(s
->shared_sigalgs
);
1428 /* Free up if allocated */
1430 OPENSSL_free(s
->ext
.hostname
);
1431 SSL_CTX_free(s
->session_ctx
);
1432 OPENSSL_free(s
->ext
.ecpointformats
);
1433 OPENSSL_free(s
->ext
.peer_ecpointformats
);
1434 OPENSSL_free(s
->ext
.supportedgroups
);
1435 OPENSSL_free(s
->ext
.peer_supportedgroups
);
1436 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1437 #ifndef OPENSSL_NO_OCSP
1438 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1440 #ifndef OPENSSL_NO_CT
1441 SCT_LIST_free(s
->scts
);
1442 OPENSSL_free(s
->ext
.scts
);
1444 OPENSSL_free(s
->ext
.ocsp
.resp
);
1445 OPENSSL_free(s
->ext
.alpn
);
1446 OPENSSL_free(s
->ext
.tls13_cookie
);
1447 if (s
->clienthello
!= NULL
)
1448 OPENSSL_free(s
->clienthello
->pre_proc_exts
);
1449 OPENSSL_free(s
->clienthello
);
1450 OPENSSL_free(s
->pha_context
);
1451 EVP_MD_CTX_free(s
->pha_dgst
);
1453 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1454 sk_X509_NAME_pop_free(s
->client_ca_names
, X509_NAME_free
);
1456 OPENSSL_free(s
->client_cert_type
);
1457 OPENSSL_free(s
->server_cert_type
);
1459 OSSL_STACK_OF_X509_free(s
->verified_chain
);
1461 if (ssl
->method
!= NULL
)
1462 ssl
->method
->ssl_deinit(ssl
);
1464 ASYNC_WAIT_CTX_free(s
->waitctx
);
1466 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1467 OPENSSL_free(s
->ext
.npn
);
1470 #ifndef OPENSSL_NO_SRTP
1471 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1475 * We do this late. We want to ensure that any other references we held to
1476 * these BIOs are freed first *before* we call BIO_free_all(), because
1477 * BIO_free_all() will only free each BIO in the chain if the number of
1478 * references to the first BIO have dropped to 0
1480 BIO_free_all(s
->wbio
);
1482 BIO_free_all(s
->rbio
);
1484 OPENSSL_free(s
->s3
.tmp
.valid_flags
);
1487 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1489 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1491 #ifndef OPENSSL_NO_QUIC
1493 ossl_quic_conn_set0_net_rbio(s
, rbio
);
1501 BIO_free_all(sc
->rbio
);
1503 sc
->rlayer
.rrlmethod
->set1_bio(sc
->rlayer
.rrl
, sc
->rbio
);
1506 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1508 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1510 #ifndef OPENSSL_NO_QUIC
1512 ossl_quic_conn_set0_net_wbio(s
, wbio
);
1521 * If the output buffering BIO is still in place, remove it
1523 if (sc
->bbio
!= NULL
)
1524 sc
->wbio
= BIO_pop(sc
->wbio
);
1526 BIO_free_all(sc
->wbio
);
1529 /* Re-attach |bbio| to the new |wbio|. */
1530 if (sc
->bbio
!= NULL
)
1531 sc
->wbio
= BIO_push(sc
->bbio
, sc
->wbio
);
1533 sc
->rlayer
.wrlmethod
->set1_bio(sc
->rlayer
.wrl
, sc
->wbio
);
1536 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1539 * For historical reasons, this function has many different cases in
1540 * ownership handling.
1543 /* If nothing has changed, do nothing */
1544 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1548 * If the two arguments are equal then one fewer reference is granted by the
1549 * caller than we want to take
1551 if (rbio
!= NULL
&& rbio
== wbio
)
1555 * If only the wbio is changed only adopt one reference.
1557 if (rbio
== SSL_get_rbio(s
)) {
1558 SSL_set0_wbio(s
, wbio
);
1562 * There is an asymmetry here for historical reasons. If only the rbio is
1563 * changed AND the rbio and wbio were originally different, then we only
1564 * adopt one reference.
1566 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1567 SSL_set0_rbio(s
, rbio
);
1571 /* Otherwise, adopt both references. */
1572 SSL_set0_rbio(s
, rbio
);
1573 SSL_set0_wbio(s
, wbio
);
1576 BIO
*SSL_get_rbio(const SSL
*s
)
1578 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1580 #ifndef OPENSSL_NO_QUIC
1582 return ossl_quic_conn_get_net_rbio(s
);
1591 BIO
*SSL_get_wbio(const SSL
*s
)
1593 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1595 #ifndef OPENSSL_NO_QUIC
1597 return ossl_quic_conn_get_net_wbio(s
);
1603 if (sc
->bbio
!= NULL
) {
1605 * If |bbio| is active, the true caller-configured BIO is its
1608 return BIO_next(sc
->bbio
);
1613 int SSL_get_fd(const SSL
*s
)
1615 return SSL_get_rfd(s
);
1618 int SSL_get_rfd(const SSL
*s
)
1623 b
= SSL_get_rbio(s
);
1624 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1626 BIO_get_fd(r
, &ret
);
1630 int SSL_get_wfd(const SSL
*s
)
1635 b
= SSL_get_wbio(s
);
1636 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1638 BIO_get_fd(r
, &ret
);
1642 #ifndef OPENSSL_NO_SOCK
1643 int SSL_set_fd(SSL
*s
, int fd
)
1648 bio
= BIO_new(BIO_s_socket());
1651 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1654 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1655 SSL_set_bio(s
, bio
, bio
);
1656 #ifndef OPENSSL_NO_KTLS
1658 * The new socket is created successfully regardless of ktls_enable.
1659 * ktls_enable doesn't change any functionality of the socket, except
1660 * changing the setsockopt to enable the processing of ktls_start.
1661 * Thus, it is not a problem to call it for non-TLS sockets.
1664 #endif /* OPENSSL_NO_KTLS */
1670 int SSL_set_wfd(SSL
*s
, int fd
)
1672 BIO
*rbio
= SSL_get_rbio(s
);
1674 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1675 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1676 BIO
*bio
= BIO_new(BIO_s_socket());
1679 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1682 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1683 SSL_set0_wbio(s
, bio
);
1684 #ifndef OPENSSL_NO_KTLS
1686 * The new socket is created successfully regardless of ktls_enable.
1687 * ktls_enable doesn't change any functionality of the socket, except
1688 * changing the setsockopt to enable the processing of ktls_start.
1689 * Thus, it is not a problem to call it for non-TLS sockets.
1692 #endif /* OPENSSL_NO_KTLS */
1695 SSL_set0_wbio(s
, rbio
);
1700 int SSL_set_rfd(SSL
*s
, int fd
)
1702 BIO
*wbio
= SSL_get_wbio(s
);
1704 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1705 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1706 BIO
*bio
= BIO_new(BIO_s_socket());
1709 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1712 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1713 SSL_set0_rbio(s
, bio
);
1716 SSL_set0_rbio(s
, wbio
);
1723 /* return length of latest Finished message we sent, copy to 'buf' */
1724 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1727 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1732 ret
= sc
->s3
.tmp
.finish_md_len
;
1735 memcpy(buf
, sc
->s3
.tmp
.finish_md
, count
);
1739 /* return length of latest Finished message we expected, copy to 'buf' */
1740 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1743 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1748 ret
= sc
->s3
.tmp
.peer_finish_md_len
;
1751 memcpy(buf
, sc
->s3
.tmp
.peer_finish_md
, count
);
1755 int SSL_get_verify_mode(const SSL
*s
)
1757 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1762 return sc
->verify_mode
;
1765 int SSL_get_verify_depth(const SSL
*s
)
1767 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1772 return X509_VERIFY_PARAM_get_depth(sc
->param
);
1775 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1776 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1781 return sc
->verify_callback
;
1784 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1786 return ctx
->verify_mode
;
1789 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1791 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1794 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1795 return ctx
->default_verify_callback
;
1798 void SSL_set_verify(SSL
*s
, int mode
,
1799 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1801 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1806 sc
->verify_mode
= mode
;
1807 if (callback
!= NULL
)
1808 sc
->verify_callback
= callback
;
1811 void SSL_set_verify_depth(SSL
*s
, int depth
)
1813 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1818 X509_VERIFY_PARAM_set_depth(sc
->param
, depth
);
1821 void SSL_set_read_ahead(SSL
*s
, int yes
)
1823 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1824 OSSL_PARAM options
[2], *opts
= options
;
1829 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, yes
);
1831 *opts
++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD
,
1832 &sc
->rlayer
.read_ahead
);
1833 *opts
= OSSL_PARAM_construct_end();
1835 /* Ignore return value */
1836 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
1839 int SSL_get_read_ahead(const SSL
*s
)
1841 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1846 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
1849 int SSL_pending(const SSL
*s
)
1851 size_t pending
= s
->method
->ssl_pending(s
);
1854 * SSL_pending cannot work properly if read-ahead is enabled
1855 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1856 * impossible to fix since SSL_pending cannot report errors that may be
1857 * observed while scanning the new data. (Note that SSL_pending() is
1858 * often used as a boolean value, so we'd better not return -1.)
1860 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1861 * we just return INT_MAX.
1863 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1866 int SSL_has_pending(const SSL
*s
)
1869 * Similar to SSL_pending() but returns a 1 to indicate that we have
1870 * processed or unprocessed data available or 0 otherwise (as opposed to the
1871 * number of bytes available). Unlike SSL_pending() this will take into
1872 * account read_ahead data. A 1 return simply indicates that we have data.
1873 * That data may not result in any application data, or we may fail to parse
1874 * the records for some reason.
1876 const SSL_CONNECTION
*sc
;
1877 #ifndef OPENSSL_NO_QUIC
1878 const QUIC_CONNECTION
*qc
= QUIC_CONNECTION_FROM_CONST_SSL(s
);
1881 return ossl_quic_has_pending(s
);
1885 sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1887 /* Check buffered app data if any first */
1888 if (SSL_CONNECTION_IS_DTLS(sc
)) {
1892 iter
= pqueue_iterator(sc
->rlayer
.d
->buffered_app_data
.q
);
1893 while ((item
= pqueue_next(&iter
)) != NULL
) {
1895 if (rdata
->length
> 0)
1900 if (RECORD_LAYER_processed_read_pending(&sc
->rlayer
))
1903 return RECORD_LAYER_read_pending(&sc
->rlayer
);
1906 X509
*SSL_get1_peer_certificate(const SSL
*s
)
1908 X509
*r
= SSL_get0_peer_certificate(s
);
1916 X509
*SSL_get0_peer_certificate(const SSL
*s
)
1918 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1923 if (sc
->session
== NULL
)
1926 return sc
->session
->peer
;
1929 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1932 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1937 if (sc
->session
== NULL
)
1940 r
= sc
->session
->peer_chain
;
1943 * If we are a client, cert_chain includes the peer's own certificate; if
1944 * we are a server, it does not.
1951 * Now in theory, since the calling process own 't' it should be safe to
1952 * modify. We need to be able to read f without being hassled
1954 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1957 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1958 SSL_CONNECTION
*tsc
= SSL_CONNECTION_FROM_SSL_ONLY(t
);
1959 const SSL_CONNECTION
*fsc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(f
);
1961 if (tsc
== NULL
|| fsc
== NULL
)
1964 /* Do we need to do SSL locking? */
1965 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1970 * what if we are setup for one protocol version but want to talk another
1972 if (t
->method
!= f
->method
) {
1973 t
->method
->ssl_deinit(t
);
1974 t
->method
= f
->method
;
1975 if (t
->method
->ssl_init(t
) == 0)
1979 CRYPTO_UP_REF(&fsc
->cert
->references
, &i
, fsc
->cert
->lock
);
1980 ssl_cert_free(tsc
->cert
);
1981 tsc
->cert
= fsc
->cert
;
1982 if (!SSL_set_session_id_context(t
, fsc
->sid_ctx
, (int)fsc
->sid_ctx_length
)) {
1989 /* Fix this so it checks all the valid key/cert options */
1990 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1992 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1993 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1996 if (ctx
->cert
->key
->privatekey
== NULL
) {
1997 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
2000 return X509_check_private_key
2001 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
2004 /* Fix this function so that it takes an optional type parameter */
2005 int SSL_check_private_key(const SSL
*ssl
)
2007 const SSL_CONNECTION
*sc
;
2009 if ((sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
)) == NULL
) {
2010 ERR_raise(ERR_LIB_SSL
, ERR_R_PASSED_NULL_PARAMETER
);
2013 if (sc
->cert
->key
->x509
== NULL
) {
2014 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
2017 if (sc
->cert
->key
->privatekey
== NULL
) {
2018 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
2021 return X509_check_private_key(sc
->cert
->key
->x509
,
2022 sc
->cert
->key
->privatekey
);
2025 int SSL_waiting_for_async(SSL
*s
)
2027 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2038 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
2040 ASYNC_WAIT_CTX
*ctx
;
2041 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2046 if ((ctx
= sc
->waitctx
) == NULL
)
2048 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
2051 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
2052 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
2054 ASYNC_WAIT_CTX
*ctx
;
2055 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2060 if ((ctx
= sc
->waitctx
) == NULL
)
2062 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
2066 int SSL_CTX_set_async_callback(SSL_CTX
*ctx
, SSL_async_callback_fn callback
)
2068 ctx
->async_cb
= callback
;
2072 int SSL_CTX_set_async_callback_arg(SSL_CTX
*ctx
, void *arg
)
2074 ctx
->async_cb_arg
= arg
;
2078 int SSL_set_async_callback(SSL
*s
, SSL_async_callback_fn callback
)
2080 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2085 sc
->async_cb
= callback
;
2089 int SSL_set_async_callback_arg(SSL
*s
, void *arg
)
2091 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2096 sc
->async_cb_arg
= arg
;
2100 int SSL_get_async_status(SSL
*s
, int *status
)
2102 ASYNC_WAIT_CTX
*ctx
;
2103 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2108 if ((ctx
= sc
->waitctx
) == NULL
)
2110 *status
= ASYNC_WAIT_CTX_get_status(ctx
);
2114 int SSL_accept(SSL
*s
)
2116 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2118 #ifndef OPENSSL_NO_QUIC
2120 return s
->method
->ssl_accept(s
);
2126 if (sc
->handshake_func
== NULL
) {
2127 /* Not properly initialized yet */
2128 SSL_set_accept_state(s
);
2131 return SSL_do_handshake(s
);
2134 int SSL_connect(SSL
*s
)
2136 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2138 #ifndef OPENSSL_NO_QUIC
2140 return s
->method
->ssl_connect(s
);
2146 if (sc
->handshake_func
== NULL
) {
2147 /* Not properly initialized yet */
2148 SSL_set_connect_state(s
);
2151 return SSL_do_handshake(s
);
2154 long SSL_get_default_timeout(const SSL
*s
)
2156 return (long int)ossl_time2seconds(s
->method
->get_timeout());
2159 static int ssl_async_wait_ctx_cb(void *arg
)
2161 SSL
*s
= (SSL
*)arg
;
2162 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2167 return sc
->async_cb(s
, sc
->async_cb_arg
);
2170 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
2171 int (*func
) (void *))
2174 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2179 if (sc
->waitctx
== NULL
) {
2180 sc
->waitctx
= ASYNC_WAIT_CTX_new();
2181 if (sc
->waitctx
== NULL
)
2183 if (sc
->async_cb
!= NULL
2184 && !ASYNC_WAIT_CTX_set_callback
2185 (sc
->waitctx
, ssl_async_wait_ctx_cb
, s
))
2189 sc
->rwstate
= SSL_NOTHING
;
2190 switch (ASYNC_start_job(&sc
->job
, sc
->waitctx
, &ret
, func
, args
,
2191 sizeof(struct ssl_async_args
))) {
2193 sc
->rwstate
= SSL_NOTHING
;
2194 ERR_raise(ERR_LIB_SSL
, SSL_R_FAILED_TO_INIT_ASYNC
);
2197 sc
->rwstate
= SSL_ASYNC_PAUSED
;
2200 sc
->rwstate
= SSL_ASYNC_NO_JOBS
;
2206 sc
->rwstate
= SSL_NOTHING
;
2207 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
2208 /* Shouldn't happen */
2213 static int ssl_io_intern(void *vargs
)
2215 struct ssl_async_args
*args
;
2221 args
= (struct ssl_async_args
*)vargs
;
2225 if ((sc
= SSL_CONNECTION_FROM_SSL(s
)) == NULL
)
2228 switch (args
->type
) {
2230 return args
->f
.func_read(s
, buf
, num
, &sc
->asyncrw
);
2232 return args
->f
.func_write(s
, buf
, num
, &sc
->asyncrw
);
2234 return args
->f
.func_other(s
);
2239 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2241 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2243 #ifndef OPENSSL_NO_QUIC
2245 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
2251 if (sc
->handshake_func
== NULL
) {
2252 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2256 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2257 sc
->rwstate
= SSL_NOTHING
;
2261 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2262 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
2263 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2267 * If we are a client and haven't received the ServerHello etc then we
2270 ossl_statem_check_finish_init(sc
, 0);
2272 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2273 struct ssl_async_args args
;
2279 args
.type
= READFUNC
;
2280 args
.f
.func_read
= s
->method
->ssl_read
;
2282 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2283 *readbytes
= sc
->asyncrw
;
2286 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
2290 int SSL_read(SSL
*s
, void *buf
, int num
)
2296 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2300 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
2303 * The cast is safe here because ret should be <= INT_MAX because num is
2307 ret
= (int)readbytes
;
2312 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2314 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
2321 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2324 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2326 /* TODO(QUIC): This will need special handling for QUIC */
2331 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2332 return SSL_READ_EARLY_DATA_ERROR
;
2335 switch (sc
->early_data_state
) {
2336 case SSL_EARLY_DATA_NONE
:
2337 if (!SSL_in_before(s
)) {
2338 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2339 return SSL_READ_EARLY_DATA_ERROR
;
2343 case SSL_EARLY_DATA_ACCEPT_RETRY
:
2344 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
2345 ret
= SSL_accept(s
);
2348 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
2349 return SSL_READ_EARLY_DATA_ERROR
;
2353 case SSL_EARLY_DATA_READ_RETRY
:
2354 if (sc
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
2355 sc
->early_data_state
= SSL_EARLY_DATA_READING
;
2356 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
2358 * State machine will update early_data_state to
2359 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2362 if (ret
> 0 || (ret
<= 0 && sc
->early_data_state
2363 != SSL_EARLY_DATA_FINISHED_READING
)) {
2364 sc
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
2365 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
2366 : SSL_READ_EARLY_DATA_ERROR
;
2369 sc
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
2372 return SSL_READ_EARLY_DATA_FINISH
;
2375 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2376 return SSL_READ_EARLY_DATA_ERROR
;
2380 int SSL_get_early_data_status(const SSL
*s
)
2382 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
2384 /* TODO(QUIC): This will need special handling for QUIC */
2388 return sc
->ext
.early_data
;
2391 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2393 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2395 #ifndef OPENSSL_NO_QUIC
2397 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
2403 if (sc
->handshake_func
== NULL
) {
2404 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2408 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2411 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2412 struct ssl_async_args args
;
2418 args
.type
= READFUNC
;
2419 args
.f
.func_read
= s
->method
->ssl_peek
;
2421 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2422 *readbytes
= sc
->asyncrw
;
2425 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
2429 int SSL_peek(SSL
*s
, void *buf
, int num
)
2435 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2439 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
2442 * The cast is safe here because ret should be <= INT_MAX because num is
2446 ret
= (int)readbytes
;
2452 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2454 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
2461 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2463 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2465 #ifndef OPENSSL_NO_QUIC
2467 return s
->method
->ssl_write(s
, buf
, num
, written
);
2473 if (sc
->handshake_func
== NULL
) {
2474 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2478 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2479 sc
->rwstate
= SSL_NOTHING
;
2480 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2484 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2485 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
2486 || sc
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
2487 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2490 /* If we are a client and haven't sent the Finished we better do that */
2491 ossl_statem_check_finish_init(sc
, 1);
2493 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2495 struct ssl_async_args args
;
2498 args
.buf
= (void *)buf
;
2500 args
.type
= WRITEFUNC
;
2501 args
.f
.func_write
= s
->method
->ssl_write
;
2503 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2504 *written
= sc
->asyncrw
;
2507 return s
->method
->ssl_write(s
, buf
, num
, written
);
2511 ossl_ssize_t
SSL_sendfile(SSL
*s
, int fd
, off_t offset
, size_t size
, int flags
)
2514 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2519 if (sc
->handshake_func
== NULL
) {
2520 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2524 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2525 sc
->rwstate
= SSL_NOTHING
;
2526 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2530 if (!BIO_get_ktls_send(sc
->wbio
)) {
2531 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2535 /* If we have an alert to send, lets send it */
2536 if (sc
->s3
.alert_dispatch
> 0) {
2537 ret
= (ossl_ssize_t
)s
->method
->ssl_dispatch_alert(s
);
2539 /* SSLfatal() already called if appropriate */
2542 /* if it went, fall through and send more stuff */
2545 sc
->rwstate
= SSL_WRITING
;
2546 if (BIO_flush(sc
->wbio
) <= 0) {
2547 if (!BIO_should_retry(sc
->wbio
)) {
2548 sc
->rwstate
= SSL_NOTHING
;
2551 set_sys_error(EAGAIN
);
2557 #ifdef OPENSSL_NO_KTLS
2558 ERR_raise_data(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
,
2559 "can't call ktls_sendfile(), ktls disabled");
2562 ret
= ktls_sendfile(SSL_get_wfd(s
), fd
, offset
, size
, flags
);
2564 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2565 if ((get_last_sys_error() == EAGAIN
) ||
2566 (get_last_sys_error() == EINTR
) ||
2567 (get_last_sys_error() == EBUSY
))
2568 BIO_set_retry_write(sc
->wbio
);
2571 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2574 sc
->rwstate
= SSL_NOTHING
;
2579 int SSL_write(SSL
*s
, const void *buf
, int num
)
2585 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2589 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
2592 * The cast is safe here because ret should be <= INT_MAX because num is
2601 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2603 int ret
= ssl_write_internal(s
, buf
, num
, written
);
2610 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2612 int ret
, early_data_state
;
2614 uint32_t partialwrite
;
2615 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2617 /* TODO(QUIC): This will need special handling for QUIC */
2621 switch (sc
->early_data_state
) {
2622 case SSL_EARLY_DATA_NONE
:
2624 || !SSL_in_before(s
)
2625 || ((sc
->session
== NULL
|| sc
->session
->ext
.max_early_data
== 0)
2626 && (sc
->psk_use_session_cb
== NULL
))) {
2627 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2632 case SSL_EARLY_DATA_CONNECT_RETRY
:
2633 sc
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2634 ret
= SSL_connect(s
);
2637 sc
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2642 case SSL_EARLY_DATA_WRITE_RETRY
:
2643 sc
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2645 * We disable partial write for early data because we don't keep track
2646 * of how many bytes we've written between the SSL_write_ex() call and
2647 * the flush if the flush needs to be retried)
2649 partialwrite
= sc
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2650 sc
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2651 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2652 sc
->mode
|= partialwrite
;
2654 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2657 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2660 case SSL_EARLY_DATA_WRITE_FLUSH
:
2661 /* The buffering BIO is still in place so we need to flush it */
2662 if (statem_flush(sc
) != 1)
2665 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2668 case SSL_EARLY_DATA_FINISHED_READING
:
2669 case SSL_EARLY_DATA_READ_RETRY
:
2670 early_data_state
= sc
->early_data_state
;
2671 /* We are a server writing to an unauthenticated client */
2672 sc
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2673 ret
= SSL_write_ex(s
, buf
, num
, written
);
2674 /* The buffering BIO is still in place */
2676 (void)BIO_flush(sc
->wbio
);
2677 sc
->early_data_state
= early_data_state
;
2681 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2686 int SSL_shutdown(SSL
*s
)
2689 * Note that this function behaves differently from what one might
2690 * expect. Return values are 0 for no success (yet), 1 for success; but
2691 * calling it once is usually not enough, even if blocking I/O is used
2692 * (see ssl3_shutdown).
2694 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2695 #ifndef OPENSSL_NO_QUIC
2696 QUIC_CONNECTION
*qc
= QUIC_CONNECTION_FROM_SSL(s
);
2699 return ossl_quic_conn_shutdown(s
, 0, NULL
, 0);
2705 if (sc
->handshake_func
== NULL
) {
2706 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2710 if (!SSL_in_init(s
)) {
2711 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2712 struct ssl_async_args args
;
2714 memset(&args
, 0, sizeof(args
));
2716 args
.type
= OTHERFUNC
;
2717 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2719 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2721 return s
->method
->ssl_shutdown(s
);
2724 ERR_raise(ERR_LIB_SSL
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2729 int SSL_key_update(SSL
*s
, int updatetype
)
2731 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2736 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
2737 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2741 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2742 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2743 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2747 if (!SSL_is_init_finished(s
)) {
2748 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
2752 if (RECORD_LAYER_write_pending(&sc
->rlayer
)) {
2753 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_WRITE_RETRY
);
2757 ossl_statem_set_in_init(sc
, 1);
2758 sc
->key_update
= updatetype
;
2762 int SSL_get_key_update_type(const SSL
*s
)
2764 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
2769 return sc
->key_update
;
2773 * Can we accept a renegotiation request? If yes, set the flag and
2774 * return 1 if yes. If not, raise error and return 0.
2776 static int can_renegotiate(const SSL_CONNECTION
*sc
)
2778 if (SSL_CONNECTION_IS_TLS13(sc
)) {
2779 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2783 if ((sc
->options
& SSL_OP_NO_RENEGOTIATION
) != 0) {
2784 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_RENEGOTIATION
);
2791 int SSL_renegotiate(SSL
*s
)
2793 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2798 if (!can_renegotiate(sc
))
2801 sc
->renegotiate
= 1;
2802 sc
->new_session
= 1;
2803 return s
->method
->ssl_renegotiate(s
);
2806 int SSL_renegotiate_abbreviated(SSL
*s
)
2808 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2813 if (!can_renegotiate(sc
))
2816 sc
->renegotiate
= 1;
2817 sc
->new_session
= 0;
2818 return s
->method
->ssl_renegotiate(s
);
2821 int SSL_renegotiate_pending(const SSL
*s
)
2823 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2829 * becomes true when negotiation is requested; false again once a
2830 * handshake has finished
2832 return (sc
->renegotiate
!= 0);
2835 int SSL_new_session_ticket(SSL
*s
)
2837 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2842 /* If we are in init because we're sending tickets, okay to send more. */
2843 if ((SSL_in_init(s
) && sc
->ext
.extra_tickets_expected
== 0)
2844 || SSL_IS_FIRST_HANDSHAKE(sc
) || !sc
->server
2845 || !SSL_CONNECTION_IS_TLS13(sc
))
2847 sc
->ext
.extra_tickets_expected
++;
2848 if (!RECORD_LAYER_write_pending(&sc
->rlayer
) && !SSL_in_init(s
))
2849 ossl_statem_set_in_init(sc
, 1);
2853 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2856 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2858 /* TODO(QUIC): Special handling for some ctrls will be needed */
2863 case SSL_CTRL_GET_READ_AHEAD
:
2864 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2865 case SSL_CTRL_SET_READ_AHEAD
:
2866 l
= RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2867 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, larg
);
2870 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2871 sc
->msg_callback_arg
= parg
;
2876 OSSL_PARAM options
[2], *opts
= options
;
2880 *opts
++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE
,
2882 *opts
= OSSL_PARAM_construct_end();
2884 /* Ignore return value */
2885 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
2889 case SSL_CTRL_CLEAR_MODE
:
2890 return (sc
->mode
&= ~larg
);
2891 case SSL_CTRL_GET_MAX_CERT_LIST
:
2892 return (long)sc
->max_cert_list
;
2893 case SSL_CTRL_SET_MAX_CERT_LIST
:
2896 l
= (long)sc
->max_cert_list
;
2897 sc
->max_cert_list
= (size_t)larg
;
2899 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2900 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2902 #ifndef OPENSSL_NO_KTLS
2903 if (sc
->wbio
!= NULL
&& BIO_get_ktls_send(sc
->wbio
))
2905 #endif /* OPENSSL_NO_KTLS */
2906 sc
->max_send_fragment
= larg
;
2907 if (sc
->max_send_fragment
< sc
->split_send_fragment
)
2908 sc
->split_send_fragment
= sc
->max_send_fragment
;
2909 sc
->rlayer
.wrlmethod
->set_max_frag_len(sc
->rlayer
.wrl
, larg
);
2911 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2912 if ((size_t)larg
> sc
->max_send_fragment
|| larg
== 0)
2914 sc
->split_send_fragment
= larg
;
2916 case SSL_CTRL_SET_MAX_PIPELINES
:
2917 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2919 sc
->max_pipelines
= larg
;
2920 if (sc
->rlayer
.rrlmethod
->set_max_pipelines
!= NULL
)
2921 sc
->rlayer
.rrlmethod
->set_max_pipelines(sc
->rlayer
.rrl
, (size_t)larg
);
2923 case SSL_CTRL_GET_RI_SUPPORT
:
2924 return sc
->s3
.send_connection_binding
;
2925 case SSL_CTRL_SET_RETRY_VERIFY
:
2926 sc
->rwstate
= SSL_RETRY_VERIFY
;
2928 case SSL_CTRL_CERT_FLAGS
:
2929 return (sc
->cert
->cert_flags
|= larg
);
2930 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2931 return (sc
->cert
->cert_flags
&= ~larg
);
2933 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2935 if (sc
->s3
.tmp
.ciphers_raw
== NULL
)
2937 *(unsigned char **)parg
= sc
->s3
.tmp
.ciphers_raw
;
2938 return (int)sc
->s3
.tmp
.ciphers_rawlen
;
2940 return TLS_CIPHER_LEN
;
2942 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2943 if (!sc
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(sc
))
2945 if (sc
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2949 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2950 return ssl_check_allowed_versions(larg
, sc
->max_proto_version
)
2951 && ssl_set_version_bound(s
->defltmeth
->version
, (int)larg
,
2952 &sc
->min_proto_version
);
2953 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2954 return sc
->min_proto_version
;
2955 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2956 return ssl_check_allowed_versions(sc
->min_proto_version
, larg
)
2957 && ssl_set_version_bound(s
->defltmeth
->version
, (int)larg
,
2958 &sc
->max_proto_version
);
2959 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2960 return sc
->max_proto_version
;
2962 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2966 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2968 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2974 case SSL_CTRL_SET_MSG_CALLBACK
:
2975 sc
->msg_callback
= (void (*)
2976 (int write_p
, int version
, int content_type
,
2977 const void *buf
, size_t len
, SSL
*ssl
,
2982 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2986 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2988 return ctx
->sessions
;
2991 static int ssl_tsan_load(SSL_CTX
*ctx
, TSAN_QUALIFIER
int *stat
)
2995 if (ssl_tsan_lock(ctx
)) {
2996 res
= tsan_load(stat
);
2997 ssl_tsan_unlock(ctx
);
3002 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
3005 /* For some cases with ctx == NULL perform syntax checks */
3008 case SSL_CTRL_SET_GROUPS_LIST
:
3009 return tls1_set_groups_list(ctx
, NULL
, NULL
, parg
);
3010 case SSL_CTRL_SET_SIGALGS_LIST
:
3011 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
3012 return tls1_set_sigalgs_list(NULL
, parg
, 0);
3019 case SSL_CTRL_GET_READ_AHEAD
:
3020 return ctx
->read_ahead
;
3021 case SSL_CTRL_SET_READ_AHEAD
:
3022 l
= ctx
->read_ahead
;
3023 ctx
->read_ahead
= larg
;
3026 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
3027 ctx
->msg_callback_arg
= parg
;
3030 case SSL_CTRL_GET_MAX_CERT_LIST
:
3031 return (long)ctx
->max_cert_list
;
3032 case SSL_CTRL_SET_MAX_CERT_LIST
:
3035 l
= (long)ctx
->max_cert_list
;
3036 ctx
->max_cert_list
= (size_t)larg
;
3039 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
3042 l
= (long)ctx
->session_cache_size
;
3043 ctx
->session_cache_size
= (size_t)larg
;
3045 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
3046 return (long)ctx
->session_cache_size
;
3047 case SSL_CTRL_SET_SESS_CACHE_MODE
:
3048 l
= ctx
->session_cache_mode
;
3049 ctx
->session_cache_mode
= larg
;
3051 case SSL_CTRL_GET_SESS_CACHE_MODE
:
3052 return ctx
->session_cache_mode
;
3054 case SSL_CTRL_SESS_NUMBER
:
3055 return lh_SSL_SESSION_num_items(ctx
->sessions
);
3056 case SSL_CTRL_SESS_CONNECT
:
3057 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect
);
3058 case SSL_CTRL_SESS_CONNECT_GOOD
:
3059 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_good
);
3060 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
3061 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_renegotiate
);
3062 case SSL_CTRL_SESS_ACCEPT
:
3063 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept
);
3064 case SSL_CTRL_SESS_ACCEPT_GOOD
:
3065 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_good
);
3066 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
3067 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_renegotiate
);
3068 case SSL_CTRL_SESS_HIT
:
3069 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_hit
);
3070 case SSL_CTRL_SESS_CB_HIT
:
3071 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cb_hit
);
3072 case SSL_CTRL_SESS_MISSES
:
3073 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_miss
);
3074 case SSL_CTRL_SESS_TIMEOUTS
:
3075 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_timeout
);
3076 case SSL_CTRL_SESS_CACHE_FULL
:
3077 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cache_full
);
3079 return (ctx
->mode
|= larg
);
3080 case SSL_CTRL_CLEAR_MODE
:
3081 return (ctx
->mode
&= ~larg
);
3082 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
3083 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
3085 ctx
->max_send_fragment
= larg
;
3086 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
3087 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
3089 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
3090 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
3092 ctx
->split_send_fragment
= larg
;
3094 case SSL_CTRL_SET_MAX_PIPELINES
:
3095 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
3097 ctx
->max_pipelines
= larg
;
3099 case SSL_CTRL_CERT_FLAGS
:
3100 return (ctx
->cert
->cert_flags
|= larg
);
3101 case SSL_CTRL_CLEAR_CERT_FLAGS
:
3102 return (ctx
->cert
->cert_flags
&= ~larg
);
3103 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
3104 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
3105 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
3106 &ctx
->min_proto_version
);
3107 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
3108 return ctx
->min_proto_version
;
3109 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
3110 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
3111 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
3112 &ctx
->max_proto_version
);
3113 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
3114 return ctx
->max_proto_version
;
3116 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
3120 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
3123 case SSL_CTRL_SET_MSG_CALLBACK
:
3124 ctx
->msg_callback
= (void (*)
3125 (int write_p
, int version
, int content_type
,
3126 const void *buf
, size_t len
, SSL
*ssl
,
3131 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
3135 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
3144 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
3145 const SSL_CIPHER
*const *bp
)
3147 if ((*ap
)->id
> (*bp
)->id
)
3149 if ((*ap
)->id
< (*bp
)->id
)
3155 * return a STACK of the ciphers available for the SSL and in order of
3158 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
3160 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3163 if (sc
->cipher_list
!= NULL
) {
3164 return sc
->cipher_list
;
3165 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
3166 return s
->ctx
->cipher_list
;
3172 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
3174 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3176 if (sc
== NULL
|| !sc
->server
)
3178 return sc
->peer_ciphers
;
3181 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
3183 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
3185 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3190 ciphers
= SSL_get_ciphers(s
);
3193 if (!ssl_set_client_disabled(sc
))
3195 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
3196 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
3197 if (!ssl_cipher_disabled(sc
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
3199 sk
= sk_SSL_CIPHER_new_null();
3202 if (!sk_SSL_CIPHER_push(sk
, c
)) {
3203 sk_SSL_CIPHER_free(sk
);
3211 /** return a STACK of the ciphers available for the SSL and in order of
3213 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL_CONNECTION
*s
)
3216 if (s
->cipher_list_by_id
!= NULL
)
3217 return s
->cipher_list_by_id
;
3218 else if (s
->ssl
.ctx
!= NULL
3219 && s
->ssl
.ctx
->cipher_list_by_id
!= NULL
)
3220 return s
->ssl
.ctx
->cipher_list_by_id
;
3225 /** The old interface to get the same thing as SSL_get_ciphers() */
3226 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
3228 const SSL_CIPHER
*c
;
3229 STACK_OF(SSL_CIPHER
) *sk
;
3233 sk
= SSL_get_ciphers(s
);
3234 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
3236 c
= sk_SSL_CIPHER_value(sk
, n
);
3242 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3244 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
3247 return ctx
->cipher_list
;
3252 * Distinguish between ciphers controlled by set_ciphersuite() and
3253 * set_cipher_list() when counting.
3255 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER
) *sk
)
3258 const SSL_CIPHER
*c
;
3262 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); ++i
) {
3263 c
= sk_SSL_CIPHER_value(sk
, i
);
3264 if (c
->min_tls
>= TLS1_3_VERSION
)
3271 /** specify the ciphers to be used by default by the SSL_CTX */
3272 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
3274 STACK_OF(SSL_CIPHER
) *sk
;
3276 sk
= ssl_create_cipher_list(ctx
, ctx
->tls13_ciphersuites
,
3277 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
3280 * ssl_create_cipher_list may return an empty stack if it was unable to
3281 * find a cipher matching the given rule string (for example if the rule
3282 * string specifies a cipher which has been disabled). This is not an
3283 * error as far as ssl_create_cipher_list is concerned, and hence
3284 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3288 else if (cipher_list_tls12_num(sk
) == 0) {
3289 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3295 /** specify the ciphers to be used by the SSL */
3296 int SSL_set_cipher_list(SSL
*s
, const char *str
)
3298 STACK_OF(SSL_CIPHER
) *sk
;
3299 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3304 sk
= ssl_create_cipher_list(s
->ctx
, sc
->tls13_ciphersuites
,
3305 &sc
->cipher_list
, &sc
->cipher_list_by_id
, str
,
3307 /* see comment in SSL_CTX_set_cipher_list */
3310 else if (cipher_list_tls12_num(sk
) == 0) {
3311 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3317 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
3320 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
3321 const SSL_CIPHER
*c
;
3323 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3329 || sc
->peer_ciphers
== NULL
3334 clntsk
= sc
->peer_ciphers
;
3335 srvrsk
= SSL_get_ciphers(s
);
3336 if (clntsk
== NULL
|| srvrsk
== NULL
)
3339 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
3342 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
3345 c
= sk_SSL_CIPHER_value(clntsk
, i
);
3346 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
3349 n
= strlen(c
->name
);
3366 * Return the requested servername (SNI) value. Note that the behaviour varies
3368 * - whether this is called by the client or the server,
3369 * - if we are before or during/after the handshake,
3370 * - if a resumption or normal handshake is being attempted/has occurred
3371 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3373 * Note that only the host_name type is defined (RFC 3546).
3375 const char *SSL_get_servername(const SSL
*s
, const int type
)
3377 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3384 * If we don't know if we are the client or the server yet then we assume
3387 server
= sc
->handshake_func
== NULL
? 0 : sc
->server
;
3389 if (type
!= TLSEXT_NAMETYPE_host_name
)
3395 * In TLSv1.3 on the server SNI is not associated with the session
3396 * but in TLSv1.2 or below it is.
3398 * Before the handshake:
3401 * During/after the handshake (TLSv1.2 or below resumption occurred):
3402 * - If a servername was accepted by the server in the original
3403 * handshake then it will return that servername, or NULL otherwise.
3405 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3406 * - The function will return the servername requested by the client in
3407 * this handshake or NULL if none was requested.
3409 if (sc
->hit
&& !SSL_CONNECTION_IS_TLS13(sc
))
3410 return sc
->session
->ext
.hostname
;
3415 * Before the handshake:
3416 * - If a servername has been set via a call to
3417 * SSL_set_tlsext_host_name() then it will return that servername
3418 * - If one has not been set, but a TLSv1.2 resumption is being
3419 * attempted and the session from the original handshake had a
3420 * servername accepted by the server then it will return that
3422 * - Otherwise it returns NULL
3424 * During/after the handshake (TLSv1.2 or below resumption occurred):
3425 * - If the session from the original handshake had a servername accepted
3426 * by the server then it will return that servername.
3427 * - Otherwise it returns the servername set via
3428 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3430 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3431 * - It will return the servername set via SSL_set_tlsext_host_name()
3432 * (or NULL if it was not called).
3434 if (SSL_in_before(s
)) {
3435 if (sc
->ext
.hostname
== NULL
3436 && sc
->session
!= NULL
3437 && sc
->session
->ssl_version
!= TLS1_3_VERSION
)
3438 return sc
->session
->ext
.hostname
;
3440 if (!SSL_CONNECTION_IS_TLS13(sc
) && sc
->hit
3441 && sc
->session
->ext
.hostname
!= NULL
)
3442 return sc
->session
->ext
.hostname
;
3446 return sc
->ext
.hostname
;
3449 int SSL_get_servername_type(const SSL
*s
)
3451 if (SSL_get_servername(s
, TLSEXT_NAMETYPE_host_name
) != NULL
)
3452 return TLSEXT_NAMETYPE_host_name
;
3457 * SSL_select_next_proto implements the standard protocol selection. It is
3458 * expected that this function is called from the callback set by
3459 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3460 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3461 * not included in the length. A byte string of length 0 is invalid. No byte
3462 * string may be truncated. The current, but experimental algorithm for
3463 * selecting the protocol is: 1) If the server doesn't support NPN then this
3464 * is indicated to the callback. In this case, the client application has to
3465 * abort the connection or have a default application level protocol. 2) If
3466 * the server supports NPN, but advertises an empty list then the client
3467 * selects the first protocol in its list, but indicates via the API that this
3468 * fallback case was enacted. 3) Otherwise, the client finds the first
3469 * protocol in the server's list that it supports and selects this protocol.
3470 * This is because it's assumed that the server has better information about
3471 * which protocol a client should use. 4) If the client doesn't support any
3472 * of the server's advertised protocols, then this is treated the same as
3473 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3474 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3476 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
3477 const unsigned char *server
,
3478 unsigned int server_len
,
3479 const unsigned char *client
, unsigned int client_len
)
3482 const unsigned char *result
;
3483 int status
= OPENSSL_NPN_UNSUPPORTED
;
3486 * For each protocol in server preference order, see if we support it.
3488 for (i
= 0; i
< server_len
;) {
3489 for (j
= 0; j
< client_len
;) {
3490 if (server
[i
] == client
[j
] &&
3491 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
3492 /* We found a match */
3493 result
= &server
[i
];
3494 status
= OPENSSL_NPN_NEGOTIATED
;
3504 /* There's no overlap between our protocols and the server's list. */
3506 status
= OPENSSL_NPN_NO_OVERLAP
;
3509 *out
= (unsigned char *)result
+ 1;
3510 *outlen
= result
[0];
3514 #ifndef OPENSSL_NO_NEXTPROTONEG
3516 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3517 * client's requested protocol for this connection and returns 0. If the
3518 * client didn't request any protocol, then *data is set to NULL. Note that
3519 * the client can request any protocol it chooses. The value returned from
3520 * this function need not be a member of the list of supported protocols
3521 * provided by the callback.
3523 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
3526 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3529 /* We have no other way to indicate error */
3535 *data
= sc
->ext
.npn
;
3536 if (*data
== NULL
) {
3539 *len
= (unsigned int)sc
->ext
.npn_len
;
3544 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3545 * a TLS server needs a list of supported protocols for Next Protocol
3546 * Negotiation. The returned list must be in wire format. The list is
3547 * returned by setting |out| to point to it and |outlen| to its length. This
3548 * memory will not be modified, but one should assume that the SSL* keeps a
3549 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3550 * wishes to advertise. Otherwise, no such extension will be included in the
3553 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
3554 SSL_CTX_npn_advertised_cb_func cb
,
3557 ctx
->ext
.npn_advertised_cb
= cb
;
3558 ctx
->ext
.npn_advertised_cb_arg
= arg
;
3562 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3563 * client needs to select a protocol from the server's provided list. |out|
3564 * must be set to point to the selected protocol (which may be within |in|).
3565 * The length of the protocol name must be written into |outlen|. The
3566 * server's advertised protocols are provided in |in| and |inlen|. The
3567 * callback can assume that |in| is syntactically valid. The client must
3568 * select a protocol. It is fatal to the connection if this callback returns
3569 * a value other than SSL_TLSEXT_ERR_OK.
3571 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
3572 SSL_CTX_npn_select_cb_func cb
,
3575 ctx
->ext
.npn_select_cb
= cb
;
3576 ctx
->ext
.npn_select_cb_arg
= arg
;
3580 static int alpn_value_ok(const unsigned char *protos
, unsigned int protos_len
)
3584 if (protos_len
< 2 || protos
== NULL
)
3587 for (idx
= 0; idx
< protos_len
; idx
+= protos
[idx
] + 1) {
3588 if (protos
[idx
] == 0)
3591 return idx
== protos_len
;
3594 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3595 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3596 * length-prefixed strings). Returns 0 on success.
3598 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
3599 unsigned int protos_len
)
3601 unsigned char *alpn
;
3603 if (protos_len
== 0 || protos
== NULL
) {
3604 OPENSSL_free(ctx
->ext
.alpn
);
3605 ctx
->ext
.alpn
= NULL
;
3606 ctx
->ext
.alpn_len
= 0;
3609 /* Not valid per RFC */
3610 if (!alpn_value_ok(protos
, protos_len
))
3613 alpn
= OPENSSL_memdup(protos
, protos_len
);
3616 OPENSSL_free(ctx
->ext
.alpn
);
3617 ctx
->ext
.alpn
= alpn
;
3618 ctx
->ext
.alpn_len
= protos_len
;
3624 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3625 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3626 * length-prefixed strings). Returns 0 on success.
3628 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
3629 unsigned int protos_len
)
3631 unsigned char *alpn
;
3632 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
3637 if (protos_len
== 0 || protos
== NULL
) {
3638 OPENSSL_free(sc
->ext
.alpn
);
3639 sc
->ext
.alpn
= NULL
;
3640 sc
->ext
.alpn_len
= 0;
3643 /* Not valid per RFC */
3644 if (!alpn_value_ok(protos
, protos_len
))
3647 alpn
= OPENSSL_memdup(protos
, protos_len
);
3650 OPENSSL_free(sc
->ext
.alpn
);
3651 sc
->ext
.alpn
= alpn
;
3652 sc
->ext
.alpn_len
= protos_len
;
3658 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3659 * called during ClientHello processing in order to select an ALPN protocol
3660 * from the client's list of offered protocols.
3662 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
3663 SSL_CTX_alpn_select_cb_func cb
,
3666 ctx
->ext
.alpn_select_cb
= cb
;
3667 ctx
->ext
.alpn_select_cb_arg
= arg
;
3671 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3672 * On return it sets |*data| to point to |*len| bytes of protocol name
3673 * (not including the leading length-prefix byte). If the server didn't
3674 * respond with a negotiated protocol then |*len| will be zero.
3676 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
3679 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
3682 /* We have no other way to indicate error */
3688 *data
= sc
->s3
.alpn_selected
;
3692 *len
= (unsigned int)sc
->s3
.alpn_selected_len
;
3695 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
3696 const char *label
, size_t llen
,
3697 const unsigned char *context
, size_t contextlen
,
3700 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3705 if (sc
->session
== NULL
3706 || (sc
->version
< TLS1_VERSION
&& sc
->version
!= DTLS1_BAD_VER
))
3709 return s
->method
->ssl3_enc
->export_keying_material(sc
, out
, olen
, label
,
3711 contextlen
, use_context
);
3714 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
3715 const char *label
, size_t llen
,
3716 const unsigned char *context
,
3719 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3724 if (sc
->version
!= TLS1_3_VERSION
)
3727 return tls13_export_keying_material_early(sc
, out
, olen
, label
, llen
,
3728 context
, contextlen
);
3731 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
3733 const unsigned char *session_id
= a
->session_id
;
3735 unsigned char tmp_storage
[4];
3737 if (a
->session_id_length
< sizeof(tmp_storage
)) {
3738 memset(tmp_storage
, 0, sizeof(tmp_storage
));
3739 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
3740 session_id
= tmp_storage
;
3744 ((unsigned long)session_id
[0]) |
3745 ((unsigned long)session_id
[1] << 8L) |
3746 ((unsigned long)session_id
[2] << 16L) |
3747 ((unsigned long)session_id
[3] << 24L);
3752 * NB: If this function (or indeed the hash function which uses a sort of
3753 * coarser function than this one) is changed, ensure
3754 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3755 * being able to construct an SSL_SESSION that will collide with any existing
3756 * session with a matching session ID.
3758 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
3760 if (a
->ssl_version
!= b
->ssl_version
)
3762 if (a
->session_id_length
!= b
->session_id_length
)
3764 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
3768 * These wrapper functions should remain rather than redeclaring
3769 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3770 * variable. The reason is that the functions aren't static, they're exposed
3774 SSL_CTX
*SSL_CTX_new_ex(OSSL_LIB_CTX
*libctx
, const char *propq
,
3775 const SSL_METHOD
*meth
)
3777 SSL_CTX
*ret
= NULL
;
3778 #ifndef OPENSSL_NO_COMP_ALG
3783 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_METHOD_PASSED
);
3787 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
3790 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3791 ERR_raise(ERR_LIB_SSL
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
3794 ret
= OPENSSL_zalloc(sizeof(*ret
));
3798 /* Init the reference counting before any call to SSL_CTX_free */
3799 ret
->references
= 1;
3800 ret
->lock
= CRYPTO_THREAD_lock_new();
3801 if (ret
->lock
== NULL
) {
3802 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3806 #ifdef TSAN_REQUIRES_LOCKING
3807 ret
->tsan_lock
= CRYPTO_THREAD_lock_new();
3808 if (ret
->tsan_lock
== NULL
) {
3809 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3814 ret
->libctx
= libctx
;
3815 if (propq
!= NULL
) {
3816 ret
->propq
= OPENSSL_strdup(propq
);
3817 if (ret
->propq
== NULL
)
3822 ret
->min_proto_version
= 0;
3823 ret
->max_proto_version
= 0;
3824 ret
->mode
= SSL_MODE_AUTO_RETRY
;
3825 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
3826 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
3827 /* We take the system default. */
3828 ret
->session_timeout
= meth
->get_timeout();
3829 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3830 ret
->verify_mode
= SSL_VERIFY_NONE
;
3832 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3833 if (ret
->sessions
== NULL
) {
3834 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3837 ret
->cert_store
= X509_STORE_new();
3838 if (ret
->cert_store
== NULL
) {
3839 ERR_raise(ERR_LIB_SSL
, ERR_R_X509_LIB
);
3842 #ifndef OPENSSL_NO_CT
3843 ret
->ctlog_store
= CTLOG_STORE_new_ex(libctx
, propq
);
3844 if (ret
->ctlog_store
== NULL
) {
3845 ERR_raise(ERR_LIB_SSL
, ERR_R_CT_LIB
);
3850 /* initialize cipher/digest methods table */
3851 if (!ssl_load_ciphers(ret
)) {
3852 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3856 if (!ssl_load_groups(ret
)) {
3857 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3861 /* load provider sigalgs */
3862 if (!ssl_load_sigalgs(ret
)) {
3863 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3867 /* initialise sig algs */
3868 if (!ssl_setup_sigalgs(ret
)) {
3869 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3873 if (!SSL_CTX_set_ciphersuites(ret
, OSSL_default_ciphersuites())) {
3874 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3878 if ((ret
->cert
= ssl_cert_new(SSL_PKEY_NUM
+ ret
->sigalg_list_len
)) == NULL
) {
3879 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3883 if (!ssl_create_cipher_list(ret
,
3884 ret
->tls13_ciphersuites
,
3885 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3886 OSSL_default_cipher_list(), ret
->cert
)
3887 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3888 ERR_raise(ERR_LIB_SSL
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3892 ret
->param
= X509_VERIFY_PARAM_new();
3893 if (ret
->param
== NULL
) {
3894 ERR_raise(ERR_LIB_SSL
, ERR_R_X509_LIB
);
3899 * If these aren't available from the provider we'll get NULL returns.
3900 * That's fine but will cause errors later if SSLv3 is negotiated
3902 ret
->md5
= ssl_evp_md_fetch(libctx
, NID_md5
, propq
);
3903 ret
->sha1
= ssl_evp_md_fetch(libctx
, NID_sha1
, propq
);
3905 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
) {
3906 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3910 if ((ret
->client_ca_names
= sk_X509_NAME_new_null()) == NULL
) {
3911 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3915 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
)) {
3916 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3920 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
3923 /* No compression for DTLS */
3924 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3925 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3927 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3928 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3930 /* Setup RFC5077 ticket keys */
3931 if ((RAND_bytes_ex(libctx
, ret
->ext
.tick_key_name
,
3932 sizeof(ret
->ext
.tick_key_name
), 0) <= 0)
3933 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_hmac_key
,
3934 sizeof(ret
->ext
.secure
->tick_hmac_key
), 0) <= 0)
3935 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_aes_key
,
3936 sizeof(ret
->ext
.secure
->tick_aes_key
), 0) <= 0))
3937 ret
->options
|= SSL_OP_NO_TICKET
;
3939 if (RAND_priv_bytes_ex(libctx
, ret
->ext
.cookie_hmac_key
,
3940 sizeof(ret
->ext
.cookie_hmac_key
), 0) <= 0) {
3941 ERR_raise(ERR_LIB_SSL
, ERR_R_RAND_LIB
);
3945 #ifndef OPENSSL_NO_SRP
3946 if (!ssl_ctx_srp_ctx_init_intern(ret
)) {
3947 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3951 #ifndef OPENSSL_NO_ENGINE
3952 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3953 # define eng_strx(x) #x
3954 # define eng_str(x) eng_strx(x)
3955 /* Use specific client engine automatically... ignore errors */
3958 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3961 ENGINE_load_builtin_engines();
3962 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3964 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3970 #ifndef OPENSSL_NO_COMP_ALG
3972 * Set the default order: brotli, zlib, zstd
3973 * Including only those enabled algorithms
3975 memset(ret
->cert_comp_prefs
, 0, sizeof(ret
->cert_comp_prefs
));
3977 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli
))
3978 ret
->cert_comp_prefs
[i
++] = TLSEXT_comp_cert_brotli
;
3979 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib
))
3980 ret
->cert_comp_prefs
[i
++] = TLSEXT_comp_cert_zlib
;
3981 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd
))
3982 ret
->cert_comp_prefs
[i
++] = TLSEXT_comp_cert_zstd
;
3985 * Disable compression by default to prevent CRIME. Applications can
3986 * re-enable compression by configuring
3987 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3988 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3989 * middlebox compatibility by default. This may be disabled by default in
3990 * a later OpenSSL version.
3992 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3994 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3997 * We cannot usefully set a default max_early_data here (which gets
3998 * propagated in SSL_new(), for the following reason: setting the
3999 * SSL field causes tls_construct_stoc_early_data() to tell the
4000 * client that early data will be accepted when constructing a TLS 1.3
4001 * session ticket, and the client will accordingly send us early data
4002 * when using that ticket (if the client has early data to send).
4003 * However, in order for the early data to actually be consumed by
4004 * the application, the application must also have calls to
4005 * SSL_read_early_data(); otherwise we'll just skip past the early data
4006 * and ignore it. So, since the application must add calls to
4007 * SSL_read_early_data(), we also require them to add
4008 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4009 * eliminating the bandwidth-wasting early data in the case described
4012 ret
->max_early_data
= 0;
4015 * Default recv_max_early_data is a fully loaded single record. Could be
4016 * split across multiple records in practice. We set this differently to
4017 * max_early_data so that, in the default case, we do not advertise any
4018 * support for early_data, but if a client were to send us some (e.g.
4019 * because of an old, stale ticket) then we will tolerate it and skip over
4022 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
4024 /* By default we send two session tickets automatically in TLSv1.3 */
4025 ret
->num_tickets
= 2;
4027 ssl_ctx_system_config(ret
);
4035 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
4037 return SSL_CTX_new_ex(NULL
, NULL
, meth
);
4040 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
4044 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
4047 REF_PRINT_COUNT("SSL_CTX", ctx
);
4048 REF_ASSERT_ISNT(i
< 2);
4049 return ((i
> 1) ? 1 : 0);
4052 void SSL_CTX_free(SSL_CTX
*a
)
4060 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
4061 REF_PRINT_COUNT("SSL_CTX", a
);
4064 REF_ASSERT_ISNT(i
< 0);
4066 X509_VERIFY_PARAM_free(a
->param
);
4067 dane_ctx_final(&a
->dane
);
4070 * Free internal session cache. However: the remove_cb() may reference
4071 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4072 * after the sessions were flushed.
4073 * As the ex_data handling routines might also touch the session cache,
4074 * the most secure solution seems to be: empty (flush) the cache, then
4075 * free ex_data, then finally free the cache.
4076 * (See ticket [openssl.org #212].)
4078 if (a
->sessions
!= NULL
)
4079 SSL_CTX_flush_sessions(a
, 0);
4081 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
4082 lh_SSL_SESSION_free(a
->sessions
);
4083 X509_STORE_free(a
->cert_store
);
4084 #ifndef OPENSSL_NO_CT
4085 CTLOG_STORE_free(a
->ctlog_store
);
4087 sk_SSL_CIPHER_free(a
->cipher_list
);
4088 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
4089 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
4090 ssl_cert_free(a
->cert
);
4091 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
4092 sk_X509_NAME_pop_free(a
->client_ca_names
, X509_NAME_free
);
4093 OSSL_STACK_OF_X509_free(a
->extra_certs
);
4094 a
->comp_methods
= NULL
;
4095 #ifndef OPENSSL_NO_SRTP
4096 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
4098 #ifndef OPENSSL_NO_SRP
4099 ssl_ctx_srp_ctx_free_intern(a
);
4101 #ifndef OPENSSL_NO_ENGINE
4102 tls_engine_finish(a
->client_cert_engine
);
4105 OPENSSL_free(a
->ext
.ecpointformats
);
4106 OPENSSL_free(a
->ext
.supportedgroups
);
4107 OPENSSL_free(a
->ext
.supported_groups_default
);
4108 OPENSSL_free(a
->ext
.alpn
);
4109 OPENSSL_secure_free(a
->ext
.secure
);
4111 ssl_evp_md_free(a
->md5
);
4112 ssl_evp_md_free(a
->sha1
);
4114 for (j
= 0; j
< SSL_ENC_NUM_IDX
; j
++)
4115 ssl_evp_cipher_free(a
->ssl_cipher_methods
[j
]);
4116 for (j
= 0; j
< SSL_MD_NUM_IDX
; j
++)
4117 ssl_evp_md_free(a
->ssl_digest_methods
[j
]);
4118 for (j
= 0; j
< a
->group_list_len
; j
++) {
4119 OPENSSL_free(a
->group_list
[j
].tlsname
);
4120 OPENSSL_free(a
->group_list
[j
].realname
);
4121 OPENSSL_free(a
->group_list
[j
].algorithm
);
4123 OPENSSL_free(a
->group_list
);
4124 for (j
= 0; j
< a
->sigalg_list_len
; j
++) {
4125 OPENSSL_free(a
->sigalg_list
[j
].name
);
4126 OPENSSL_free(a
->sigalg_list
[j
].sigalg_name
);
4127 OPENSSL_free(a
->sigalg_list
[j
].sigalg_oid
);
4128 OPENSSL_free(a
->sigalg_list
[j
].sig_name
);
4129 OPENSSL_free(a
->sigalg_list
[j
].sig_oid
);
4130 OPENSSL_free(a
->sigalg_list
[j
].hash_name
);
4131 OPENSSL_free(a
->sigalg_list
[j
].hash_oid
);
4132 OPENSSL_free(a
->sigalg_list
[j
].keytype
);
4133 OPENSSL_free(a
->sigalg_list
[j
].keytype_oid
);
4135 OPENSSL_free(a
->sigalg_list
);
4136 OPENSSL_free(a
->ssl_cert_info
);
4138 OPENSSL_free(a
->sigalg_lookup_cache
);
4139 OPENSSL_free(a
->tls12_sigalgs
);
4141 OPENSSL_free(a
->client_cert_type
);
4142 OPENSSL_free(a
->server_cert_type
);
4144 CRYPTO_THREAD_lock_free(a
->lock
);
4145 #ifdef TSAN_REQUIRES_LOCKING
4146 CRYPTO_THREAD_lock_free(a
->tsan_lock
);
4149 OPENSSL_free(a
->propq
);
4154 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
4156 ctx
->default_passwd_callback
= cb
;
4159 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
4161 ctx
->default_passwd_callback_userdata
= u
;
4164 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
4166 return ctx
->default_passwd_callback
;
4169 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
4171 return ctx
->default_passwd_callback_userdata
;
4174 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
4176 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4181 sc
->default_passwd_callback
= cb
;
4184 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
4186 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4191 sc
->default_passwd_callback_userdata
= u
;
4194 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
4196 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4201 return sc
->default_passwd_callback
;
4204 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
4206 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4211 return sc
->default_passwd_callback_userdata
;
4214 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
4215 int (*cb
) (X509_STORE_CTX
*, void *),
4218 ctx
->app_verify_callback
= cb
;
4219 ctx
->app_verify_arg
= arg
;
4222 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
4223 int (*cb
) (int, X509_STORE_CTX
*))
4225 ctx
->verify_mode
= mode
;
4226 ctx
->default_verify_callback
= cb
;
4229 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
4231 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
4234 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4236 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
4239 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4241 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4246 ssl_cert_set_cert_cb(sc
->cert
, cb
, arg
);
4249 void ssl_set_masks(SSL_CONNECTION
*s
)
4252 uint32_t *pvalid
= s
->s3
.tmp
.valid_flags
;
4253 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
4254 unsigned long mask_k
, mask_a
;
4255 int have_ecc_cert
, ecdsa_ok
;
4260 dh_tmp
= (c
->dh_tmp
!= NULL
4261 || c
->dh_tmp_cb
!= NULL
4264 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4265 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4266 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
4267 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
4271 OSSL_TRACE4(TLS_CIPHER
, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4272 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
4274 #ifndef OPENSSL_NO_GOST
4275 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
4276 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4277 mask_a
|= SSL_aGOST12
;
4279 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
4280 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4281 mask_a
|= SSL_aGOST12
;
4283 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
4284 mask_k
|= SSL_kGOST
;
4285 mask_a
|= SSL_aGOST01
;
4296 * If we only have an RSA-PSS certificate allow RSA authentication
4297 * if TLS 1.2 and peer supports it.
4300 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
4301 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
4302 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
))
4309 mask_a
|= SSL_aNULL
;
4312 * You can do anything with an RPK key, since there's no cert to restrict it
4313 * But we need to check for private keys
4315 if (pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_RPK
) {
4319 if (pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_RPK
)
4320 mask_a
|= SSL_aECDSA
;
4321 if (TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
) {
4322 if (pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_RPK
)
4324 if (pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_RPK
4325 || pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_RPK
)
4326 mask_a
|= SSL_aECDSA
;
4330 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4331 * depending on the key usage extension.
4333 if (have_ecc_cert
) {
4335 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
4336 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
4337 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
4340 mask_a
|= SSL_aECDSA
;
4342 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4343 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
4344 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
4345 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4346 mask_a
|= SSL_aECDSA
;
4348 /* Allow Ed448 for TLS 1.2 if peer supports it */
4349 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
4350 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
4351 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4352 mask_a
|= SSL_aECDSA
;
4354 mask_k
|= SSL_kECDHE
;
4356 #ifndef OPENSSL_NO_PSK
4359 if (mask_k
& SSL_kRSA
)
4360 mask_k
|= SSL_kRSAPSK
;
4361 if (mask_k
& SSL_kDHE
)
4362 mask_k
|= SSL_kDHEPSK
;
4363 if (mask_k
& SSL_kECDHE
)
4364 mask_k
|= SSL_kECDHEPSK
;
4367 s
->s3
.tmp
.mask_k
= mask_k
;
4368 s
->s3
.tmp
.mask_a
= mask_a
;
4371 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CONNECTION
*s
)
4373 if (s
->s3
.tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
4374 /* key usage, if present, must allow signing */
4375 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
4376 ERR_raise(ERR_LIB_SSL
, SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
4380 return 1; /* all checks are ok */
4383 int ssl_get_server_cert_serverinfo(SSL_CONNECTION
*s
,
4384 const unsigned char **serverinfo
,
4385 size_t *serverinfo_length
)
4387 CERT_PKEY
*cpk
= s
->s3
.tmp
.cert
;
4388 *serverinfo_length
= 0;
4390 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
4393 *serverinfo
= cpk
->serverinfo
;
4394 *serverinfo_length
= cpk
->serverinfo_length
;
4398 void ssl_update_cache(SSL_CONNECTION
*s
, int mode
)
4403 * If the session_id_length is 0, we are not supposed to cache it, and it
4404 * would be rather hard to do anyway :-)
4406 if (s
->session
->session_id_length
== 0)
4410 * If sid_ctx_length is 0 there is no specific application context
4411 * associated with this session, so when we try to resume it and
4412 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4413 * indication that this is actually a session for the proper application
4414 * context, and the *handshake* will fail, not just the resumption attempt.
4415 * Do not cache (on the server) these sessions that are not resumable
4416 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4418 if (s
->server
&& s
->session
->sid_ctx_length
== 0
4419 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
4422 i
= s
->session_ctx
->session_cache_mode
;
4424 && (!s
->hit
|| SSL_CONNECTION_IS_TLS13(s
))) {
4426 * Add the session to the internal cache. In server side TLSv1.3 we
4427 * normally don't do this because by default it's a full stateless ticket
4428 * with only a dummy session id so there is no reason to cache it,
4430 * - we are doing early_data, in which case we cache so that we can
4432 * - the application has set a remove_session_cb so needs to know about
4433 * session timeout events
4434 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4436 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
4437 && (!SSL_CONNECTION_IS_TLS13(s
)
4439 || (s
->max_early_data
> 0
4440 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
4441 || s
->session_ctx
->remove_session_cb
!= NULL
4442 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
4443 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
4446 * Add the session to the external cache. We do this even in server side
4447 * TLSv1.3 without early data because some applications just want to
4448 * know about the creation of a session and aren't doing a full cache.
4450 if (s
->session_ctx
->new_session_cb
!= NULL
) {
4451 SSL_SESSION_up_ref(s
->session
);
4452 if (!s
->session_ctx
->new_session_cb(SSL_CONNECTION_GET_SSL(s
),
4454 SSL_SESSION_free(s
->session
);
4458 /* auto flush every 255 connections */
4459 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
4460 TSAN_QUALIFIER
int *stat
;
4462 if (mode
& SSL_SESS_CACHE_CLIENT
)
4463 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
4465 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
4466 if ((ssl_tsan_load(s
->session_ctx
, stat
) & 0xff) == 0xff)
4467 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
4471 const SSL_METHOD
*SSL_CTX_get_ssl_method(const SSL_CTX
*ctx
)
4476 const SSL_METHOD
*SSL_get_ssl_method(const SSL
*s
)
4481 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
4484 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4486 /* TODO(QUIC): Do we want this for QUIC? */
4488 || (s
->type
!= SSL_TYPE_SSL_CONNECTION
&& s
->method
!= meth
))
4491 if (s
->method
!= meth
) {
4492 const SSL_METHOD
*sm
= s
->method
;
4493 int (*hf
) (SSL
*) = sc
->handshake_func
;
4495 if (sm
->version
== meth
->version
)
4500 ret
= s
->method
->ssl_init(s
);
4503 if (hf
== sm
->ssl_connect
)
4504 sc
->handshake_func
= meth
->ssl_connect
;
4505 else if (hf
== sm
->ssl_accept
)
4506 sc
->handshake_func
= meth
->ssl_accept
;
4511 int SSL_get_error(const SSL
*s
, int i
)
4516 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4519 return SSL_ERROR_NONE
;
4521 #ifndef OPENSSL_NO_QUIC
4523 reason
= ossl_quic_get_error(s
, i
);
4524 if (reason
!= SSL_ERROR_NONE
)
4530 return SSL_ERROR_SSL
;
4533 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4534 * where we do encode the error
4536 if ((l
= ERR_peek_error()) != 0) {
4537 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
4538 return SSL_ERROR_SYSCALL
;
4540 return SSL_ERROR_SSL
;
4543 #ifndef OPENSSL_NO_QUIC
4547 if (SSL_want_read(s
)) {
4548 bio
= SSL_get_rbio(s
);
4549 if (BIO_should_read(bio
))
4550 return SSL_ERROR_WANT_READ
;
4551 else if (BIO_should_write(bio
))
4553 * This one doesn't make too much sense ... We never try to
4554 * write to the rbio, and an application program where rbio and
4555 * wbio are separate couldn't even know what it should wait for.
4556 * However if we ever set s->rwstate incorrectly (so that we
4557 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4558 * and wbio *are* the same, this test works around that bug; so
4559 * it might be safer to keep it.
4561 return SSL_ERROR_WANT_WRITE
;
4562 else if (BIO_should_io_special(bio
)) {
4563 reason
= BIO_get_retry_reason(bio
);
4564 if (reason
== BIO_RR_CONNECT
)
4565 return SSL_ERROR_WANT_CONNECT
;
4566 else if (reason
== BIO_RR_ACCEPT
)
4567 return SSL_ERROR_WANT_ACCEPT
;
4569 return SSL_ERROR_SYSCALL
; /* unknown */
4573 if (SSL_want_write(s
)) {
4575 * Access wbio directly - in order to use the buffered bio if
4579 if (BIO_should_write(bio
))
4580 return SSL_ERROR_WANT_WRITE
;
4581 else if (BIO_should_read(bio
))
4583 * See above (SSL_want_read(s) with BIO_should_write(bio))
4585 return SSL_ERROR_WANT_READ
;
4586 else if (BIO_should_io_special(bio
)) {
4587 reason
= BIO_get_retry_reason(bio
);
4588 if (reason
== BIO_RR_CONNECT
)
4589 return SSL_ERROR_WANT_CONNECT
;
4590 else if (reason
== BIO_RR_ACCEPT
)
4591 return SSL_ERROR_WANT_ACCEPT
;
4593 return SSL_ERROR_SYSCALL
;
4598 if (SSL_want_x509_lookup(s
))
4599 return SSL_ERROR_WANT_X509_LOOKUP
;
4600 if (SSL_want_retry_verify(s
))
4601 return SSL_ERROR_WANT_RETRY_VERIFY
;
4602 if (SSL_want_async(s
))
4603 return SSL_ERROR_WANT_ASYNC
;
4604 if (SSL_want_async_job(s
))
4605 return SSL_ERROR_WANT_ASYNC_JOB
;
4606 if (SSL_want_client_hello_cb(s
))
4607 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
4609 if ((sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
4610 (sc
->s3
.warn_alert
== SSL_AD_CLOSE_NOTIFY
))
4611 return SSL_ERROR_ZERO_RETURN
;
4613 return SSL_ERROR_SYSCALL
;
4616 static int ssl_do_handshake_intern(void *vargs
)
4618 struct ssl_async_args
*args
= (struct ssl_async_args
*)vargs
;
4620 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4625 return sc
->handshake_func(s
);
4628 int SSL_do_handshake(SSL
*s
)
4631 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4633 #ifndef OPENSSL_NO_QUIC
4635 return ossl_quic_do_handshake(s
);
4638 if (sc
->handshake_func
== NULL
) {
4639 ERR_raise(ERR_LIB_SSL
, SSL_R_CONNECTION_TYPE_NOT_SET
);
4643 ossl_statem_check_finish_init(sc
, -1);
4645 s
->method
->ssl_renegotiate_check(s
, 0);
4647 if (SSL_in_init(s
) || SSL_in_before(s
)) {
4648 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
4649 struct ssl_async_args args
;
4651 memset(&args
, 0, sizeof(args
));
4654 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
4656 ret
= sc
->handshake_func(s
);
4662 void SSL_set_accept_state(SSL
*s
)
4664 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4666 #ifndef OPENSSL_NO_QUIC
4668 ossl_quic_set_accept_state(s
);
4675 ossl_statem_clear(sc
);
4676 sc
->handshake_func
= s
->method
->ssl_accept
;
4677 /* Ignore return value. Its a void public API function */
4678 clear_record_layer(sc
);
4681 void SSL_set_connect_state(SSL
*s
)
4683 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4685 #ifndef OPENSSL_NO_QUIC
4687 ossl_quic_set_connect_state(s
);
4694 ossl_statem_clear(sc
);
4695 sc
->handshake_func
= s
->method
->ssl_connect
;
4696 /* Ignore return value. Its a void public API function */
4697 clear_record_layer(sc
);
4700 int ssl_undefined_function(SSL
*s
)
4702 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4706 int ssl_undefined_void_function(void)
4708 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4712 int ssl_undefined_const_function(const SSL
*s
)
4717 const SSL_METHOD
*ssl_bad_method(int ver
)
4719 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4723 const char *ssl_protocol_to_string(int version
)
4727 case TLS1_3_VERSION
:
4730 case TLS1_2_VERSION
:
4733 case TLS1_1_VERSION
:
4748 case DTLS1_2_VERSION
:
4756 const char *SSL_get_version(const SSL
*s
)
4758 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4760 #ifndef OPENSSL_NO_QUIC
4761 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4762 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
4769 return ssl_protocol_to_string(sc
->version
);
4772 static int dup_ca_names(STACK_OF(X509_NAME
) **dst
, STACK_OF(X509_NAME
) *src
)
4774 STACK_OF(X509_NAME
) *sk
;
4783 if ((sk
= sk_X509_NAME_new_null()) == NULL
)
4785 for (i
= 0; i
< sk_X509_NAME_num(src
); i
++) {
4786 xn
= X509_NAME_dup(sk_X509_NAME_value(src
, i
));
4788 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4791 if (sk_X509_NAME_insert(sk
, xn
, i
) == 0) {
4793 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4802 SSL
*SSL_dup(SSL
*s
)
4806 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4807 SSL_CONNECTION
*retsc
;
4808 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4813 /* If we're not quiescent, just up_ref! */
4814 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
4815 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
4820 * Otherwise, copy configuration state, and session if set.
4822 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
4824 if ((retsc
= SSL_CONNECTION_FROM_SSL_ONLY(ret
)) == NULL
)
4827 if (sc
->session
!= NULL
) {
4829 * Arranges to share the same session via up_ref. This "copies"
4830 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4832 if (!SSL_copy_session_id(ret
, s
))
4836 * No session has been established yet, so we have to expect that
4837 * s->cert or ret->cert will be changed later -- they should not both
4838 * point to the same object, and thus we can't use
4839 * SSL_copy_session_id.
4841 if (!SSL_set_ssl_method(ret
, s
->method
))
4844 if (sc
->cert
!= NULL
) {
4845 ssl_cert_free(retsc
->cert
);
4846 retsc
->cert
= ssl_cert_dup(sc
->cert
);
4847 if (retsc
->cert
== NULL
)
4851 if (!SSL_set_session_id_context(ret
, sc
->sid_ctx
,
4852 (int)sc
->sid_ctx_length
))
4856 if (!ssl_dane_dup(retsc
, sc
))
4858 retsc
->version
= sc
->version
;
4859 retsc
->options
= sc
->options
;
4860 retsc
->min_proto_version
= sc
->min_proto_version
;
4861 retsc
->max_proto_version
= sc
->max_proto_version
;
4862 retsc
->mode
= sc
->mode
;
4863 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
4864 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
4865 retsc
->msg_callback
= sc
->msg_callback
;
4866 retsc
->msg_callback_arg
= sc
->msg_callback_arg
;
4867 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
4868 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
4869 retsc
->generate_session_id
= sc
->generate_session_id
;
4871 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
4873 /* copy app data, a little dangerous perhaps */
4874 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
4877 retsc
->server
= sc
->server
;
4878 if (sc
->handshake_func
) {
4880 SSL_set_accept_state(ret
);
4882 SSL_set_connect_state(ret
);
4884 retsc
->shutdown
= sc
->shutdown
;
4885 retsc
->hit
= sc
->hit
;
4887 retsc
->default_passwd_callback
= sc
->default_passwd_callback
;
4888 retsc
->default_passwd_callback_userdata
= sc
->default_passwd_callback_userdata
;
4890 X509_VERIFY_PARAM_inherit(retsc
->param
, sc
->param
);
4892 /* dup the cipher_list and cipher_list_by_id stacks */
4893 if (sc
->cipher_list
!= NULL
) {
4894 if ((retsc
->cipher_list
= sk_SSL_CIPHER_dup(sc
->cipher_list
)) == NULL
)
4897 if (sc
->cipher_list_by_id
!= NULL
)
4898 if ((retsc
->cipher_list_by_id
= sk_SSL_CIPHER_dup(sc
->cipher_list_by_id
))
4902 /* Dup the client_CA list */
4903 if (!dup_ca_names(&retsc
->ca_names
, sc
->ca_names
)
4904 || !dup_ca_names(&retsc
->client_ca_names
, sc
->client_ca_names
))
4914 X509
*SSL_get_certificate(const SSL
*s
)
4916 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4921 if (sc
->cert
!= NULL
)
4922 return sc
->cert
->key
->x509
;
4927 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
4929 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4934 if (sc
->cert
!= NULL
)
4935 return sc
->cert
->key
->privatekey
;
4940 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
4942 if (ctx
->cert
!= NULL
)
4943 return ctx
->cert
->key
->x509
;
4948 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
4950 if (ctx
->cert
!= NULL
)
4951 return ctx
->cert
->key
->privatekey
;
4956 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
4958 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4963 if ((sc
->session
!= NULL
) && (sc
->session
->cipher
!= NULL
))
4964 return sc
->session
->cipher
;
4968 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
4970 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4975 return sc
->s3
.tmp
.new_cipher
;
4978 const COMP_METHOD
*SSL_get_current_compression(const SSL
*s
)
4980 #ifndef OPENSSL_NO_COMP
4981 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4986 return sc
->rlayer
.wrlmethod
->get_compression(sc
->rlayer
.wrl
);
4992 const COMP_METHOD
*SSL_get_current_expansion(const SSL
*s
)
4994 #ifndef OPENSSL_NO_COMP
4995 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
5000 return sc
->rlayer
.rrlmethod
->get_compression(sc
->rlayer
.rrl
);
5006 int ssl_init_wbio_buffer(SSL_CONNECTION
*s
)
5010 if (s
->bbio
!= NULL
) {
5011 /* Already buffered. */
5015 bbio
= BIO_new(BIO_f_buffer());
5016 if (bbio
== NULL
|| BIO_set_read_buffer_size(bbio
, 1) <= 0) {
5018 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
5022 s
->wbio
= BIO_push(bbio
, s
->wbio
);
5024 s
->rlayer
.wrlmethod
->set1_bio(s
->rlayer
.wrl
, s
->wbio
);
5029 int ssl_free_wbio_buffer(SSL_CONNECTION
*s
)
5031 /* callers ensure s is never null */
5032 if (s
->bbio
== NULL
)
5035 s
->wbio
= BIO_pop(s
->wbio
);
5036 s
->rlayer
.wrlmethod
->set1_bio(s
->rlayer
.wrl
, s
->wbio
);
5044 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
5046 ctx
->quiet_shutdown
= mode
;
5049 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
5051 return ctx
->quiet_shutdown
;
5054 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
5056 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
5058 /* TODO(QUIC): Do we want this for QUIC? */
5062 sc
->quiet_shutdown
= mode
;
5065 int SSL_get_quiet_shutdown(const SSL
*s
)
5067 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
5069 /* TODO(QUIC): Do we want this for QUIC? */
5073 return sc
->quiet_shutdown
;
5076 void SSL_set_shutdown(SSL
*s
, int mode
)
5078 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
5080 /* TODO(QUIC): Do we want this for QUIC? */
5084 sc
->shutdown
= mode
;
5087 int SSL_get_shutdown(const SSL
*s
)
5089 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
5091 /* TODO(QUIC): Do we want this for QUIC? */
5095 return sc
->shutdown
;
5098 int SSL_version(const SSL
*s
)
5100 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5102 #ifndef OPENSSL_NO_QUIC
5103 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5104 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
5105 return OSSL_QUIC1_VERSION
;
5107 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5114 int SSL_client_version(const SSL
*s
)
5116 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5118 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5122 return sc
->client_version
;
5125 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
5130 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
5133 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
5135 /* TODO(QUIC): Do we need this for QUIC support? */
5139 if (ssl
->ctx
== ctx
)
5142 ctx
= sc
->session_ctx
;
5143 new_cert
= ssl_cert_dup(ctx
->cert
);
5144 if (new_cert
== NULL
) {
5148 if (!custom_exts_copy_flags(&new_cert
->custext
, &sc
->cert
->custext
)) {
5149 ssl_cert_free(new_cert
);
5153 ssl_cert_free(sc
->cert
);
5154 sc
->cert
= new_cert
;
5157 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5158 * so setter APIs must prevent invalid lengths from entering the system.
5160 if (!ossl_assert(sc
->sid_ctx_length
<= sizeof(sc
->sid_ctx
)))
5164 * If the session ID context matches that of the parent SSL_CTX,
5165 * inherit it from the new SSL_CTX as well. If however the context does
5166 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5167 * leave it unchanged.
5169 if ((ssl
->ctx
!= NULL
) &&
5170 (sc
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
5171 (memcmp(sc
->sid_ctx
, ssl
->ctx
->sid_ctx
, sc
->sid_ctx_length
) == 0)) {
5172 sc
->sid_ctx_length
= ctx
->sid_ctx_length
;
5173 memcpy(&sc
->sid_ctx
, &ctx
->sid_ctx
, sizeof(sc
->sid_ctx
));
5176 SSL_CTX_up_ref(ctx
);
5177 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
5183 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
5185 return X509_STORE_set_default_paths_ex(ctx
->cert_store
, ctx
->libctx
,
5189 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
5191 X509_LOOKUP
*lookup
;
5193 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
5197 /* We ignore errors, in case the directory doesn't exist */
5200 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
5207 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
5209 X509_LOOKUP
*lookup
;
5211 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
5215 /* We ignore errors, in case the file doesn't exist */
5218 X509_LOOKUP_load_file_ex(lookup
, NULL
, X509_FILETYPE_DEFAULT
, ctx
->libctx
,
5226 int SSL_CTX_set_default_verify_store(SSL_CTX
*ctx
)
5228 X509_LOOKUP
*lookup
;
5230 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_store());
5234 /* We ignore errors, in case the directory doesn't exist */
5237 X509_LOOKUP_add_store_ex(lookup
, NULL
, ctx
->libctx
, ctx
->propq
);
5244 int SSL_CTX_load_verify_file(SSL_CTX
*ctx
, const char *CAfile
)
5246 return X509_STORE_load_file_ex(ctx
->cert_store
, CAfile
, ctx
->libctx
,
5250 int SSL_CTX_load_verify_dir(SSL_CTX
*ctx
, const char *CApath
)
5252 return X509_STORE_load_path(ctx
->cert_store
, CApath
);
5255 int SSL_CTX_load_verify_store(SSL_CTX
*ctx
, const char *CAstore
)
5257 return X509_STORE_load_store_ex(ctx
->cert_store
, CAstore
, ctx
->libctx
,
5261 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
5264 if (CAfile
== NULL
&& CApath
== NULL
)
5266 if (CAfile
!= NULL
&& !SSL_CTX_load_verify_file(ctx
, CAfile
))
5268 if (CApath
!= NULL
&& !SSL_CTX_load_verify_dir(ctx
, CApath
))
5273 void SSL_set_info_callback(SSL
*ssl
,
5274 void (*cb
) (const SSL
*ssl
, int type
, int val
))
5276 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5281 sc
->info_callback
= cb
;
5285 * One compiler (Diab DCC) doesn't like argument names in returned function
5288 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
5291 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5296 return sc
->info_callback
;
5299 void SSL_set_verify_result(SSL
*ssl
, long arg
)
5301 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5306 sc
->verify_result
= arg
;
5309 long SSL_get_verify_result(const SSL
*ssl
)
5311 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5316 return sc
->verify_result
;
5319 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5321 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5327 return sizeof(sc
->s3
.client_random
);
5328 if (outlen
> sizeof(sc
->s3
.client_random
))
5329 outlen
= sizeof(sc
->s3
.client_random
);
5330 memcpy(out
, sc
->s3
.client_random
, outlen
);
5334 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5336 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5342 return sizeof(sc
->s3
.server_random
);
5343 if (outlen
> sizeof(sc
->s3
.server_random
))
5344 outlen
= sizeof(sc
->s3
.server_random
);
5345 memcpy(out
, sc
->s3
.server_random
, outlen
);
5349 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
5350 unsigned char *out
, size_t outlen
)
5353 return session
->master_key_length
;
5354 if (outlen
> session
->master_key_length
)
5355 outlen
= session
->master_key_length
;
5356 memcpy(out
, session
->master_key
, outlen
);
5360 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
5363 if (len
> sizeof(sess
->master_key
))
5366 memcpy(sess
->master_key
, in
, len
);
5367 sess
->master_key_length
= len
;
5372 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
5374 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5377 void *SSL_get_ex_data(const SSL
*s
, int idx
)
5379 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5382 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
5384 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5387 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
5389 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5392 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
5394 return ctx
->cert_store
;
5397 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5399 X509_STORE_free(ctx
->cert_store
);
5400 ctx
->cert_store
= store
;
5403 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5406 X509_STORE_up_ref(store
);
5407 SSL_CTX_set_cert_store(ctx
, store
);
5410 int SSL_want(const SSL
*s
)
5412 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5420 #ifndef OPENSSL_NO_PSK
5421 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
5423 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5424 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5427 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
5428 if (identity_hint
!= NULL
) {
5429 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5430 if (ctx
->cert
->psk_identity_hint
== NULL
)
5433 ctx
->cert
->psk_identity_hint
= NULL
;
5437 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
5439 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5444 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5445 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5448 OPENSSL_free(sc
->cert
->psk_identity_hint
);
5449 if (identity_hint
!= NULL
) {
5450 sc
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5451 if (sc
->cert
->psk_identity_hint
== NULL
)
5454 sc
->cert
->psk_identity_hint
= NULL
;
5458 const char *SSL_get_psk_identity_hint(const SSL
*s
)
5460 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5462 if (sc
== NULL
|| sc
->session
== NULL
)
5465 return sc
->session
->psk_identity_hint
;
5468 const char *SSL_get_psk_identity(const SSL
*s
)
5470 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5472 if (sc
== NULL
|| sc
->session
== NULL
)
5475 return sc
->session
->psk_identity
;
5478 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
5480 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5485 sc
->psk_client_callback
= cb
;
5488 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
5490 ctx
->psk_client_callback
= cb
;
5493 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
5495 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5500 sc
->psk_server_callback
= cb
;
5503 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
5505 ctx
->psk_server_callback
= cb
;
5509 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
5511 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5516 sc
->psk_find_session_cb
= cb
;
5519 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
5520 SSL_psk_find_session_cb_func cb
)
5522 ctx
->psk_find_session_cb
= cb
;
5525 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
5527 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5532 sc
->psk_use_session_cb
= cb
;
5535 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
5536 SSL_psk_use_session_cb_func cb
)
5538 ctx
->psk_use_session_cb
= cb
;
5541 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
5542 void (*cb
) (int write_p
, int version
,
5543 int content_type
, const void *buf
,
5544 size_t len
, SSL
*ssl
, void *arg
))
5546 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5549 void SSL_set_msg_callback(SSL
*ssl
,
5550 void (*cb
) (int write_p
, int version
,
5551 int content_type
, const void *buf
,
5552 size_t len
, SSL
*ssl
, void *arg
))
5554 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5557 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
5558 int (*cb
) (SSL
*ssl
,
5562 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5563 (void (*)(void))cb
);
5566 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
5567 int (*cb
) (SSL
*ssl
,
5568 int is_forward_secure
))
5570 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5571 (void (*)(void))cb
);
5574 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
5575 size_t (*cb
) (SSL
*ssl
, int type
,
5576 size_t len
, void *arg
))
5578 ctx
->record_padding_cb
= cb
;
5581 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
5583 ctx
->record_padding_arg
= arg
;
5586 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX
*ctx
)
5588 return ctx
->record_padding_arg
;
5591 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
5593 /* block size of 0 or 1 is basically no padding */
5594 if (block_size
== 1)
5595 ctx
->block_padding
= 0;
5596 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5597 ctx
->block_padding
= block_size
;
5603 int SSL_set_record_padding_callback(SSL
*ssl
,
5604 size_t (*cb
) (SSL
*ssl
, int type
,
5605 size_t len
, void *arg
))
5608 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5613 b
= SSL_get_wbio(ssl
);
5614 if (b
== NULL
|| !BIO_get_ktls_send(b
)) {
5615 sc
->rlayer
.record_padding_cb
= cb
;
5621 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
5623 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5628 sc
->rlayer
.record_padding_arg
= arg
;
5631 void *SSL_get_record_padding_callback_arg(const SSL
*ssl
)
5633 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5638 return sc
->rlayer
.record_padding_arg
;
5641 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
5643 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5648 /* block size of 0 or 1 is basically no padding */
5649 if (block_size
== 1)
5650 sc
->rlayer
.block_padding
= 0;
5651 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5652 sc
->rlayer
.block_padding
= block_size
;
5658 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
5660 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5665 sc
->num_tickets
= num_tickets
;
5670 size_t SSL_get_num_tickets(const SSL
*s
)
5672 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5677 return sc
->num_tickets
;
5680 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
5682 ctx
->num_tickets
= num_tickets
;
5687 size_t SSL_CTX_get_num_tickets(const SSL_CTX
*ctx
)
5689 return ctx
->num_tickets
;
5692 /* Retrieve handshake hashes */
5693 int ssl_handshake_hash(SSL_CONNECTION
*s
,
5694 unsigned char *out
, size_t outlen
,
5697 EVP_MD_CTX
*ctx
= NULL
;
5698 EVP_MD_CTX
*hdgst
= s
->s3
.handshake_dgst
;
5699 int hashleni
= EVP_MD_CTX_get_size(hdgst
);
5702 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
5703 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5707 ctx
= EVP_MD_CTX_new();
5709 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5713 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
5714 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
5715 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5719 *hashlen
= hashleni
;
5723 EVP_MD_CTX_free(ctx
);
5727 int SSL_session_reused(const SSL
*s
)
5729 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5737 int SSL_is_server(const SSL
*s
)
5739 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5747 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5748 void SSL_set_debug(SSL
*s
, int debug
)
5750 /* Old function was do-nothing anyway... */
5756 void SSL_set_security_level(SSL
*s
, int level
)
5758 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5763 sc
->cert
->sec_level
= level
;
5766 int SSL_get_security_level(const SSL
*s
)
5768 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5773 return sc
->cert
->sec_level
;
5776 void SSL_set_security_callback(SSL
*s
,
5777 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5778 int op
, int bits
, int nid
,
5779 void *other
, void *ex
))
5781 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5786 sc
->cert
->sec_cb
= cb
;
5789 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
5790 const SSL_CTX
*ctx
, int op
,
5791 int bits
, int nid
, void *other
,
5793 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5798 return sc
->cert
->sec_cb
;
5801 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
5803 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5808 sc
->cert
->sec_ex
= ex
;
5811 void *SSL_get0_security_ex_data(const SSL
*s
)
5813 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5818 return sc
->cert
->sec_ex
;
5821 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
5823 ctx
->cert
->sec_level
= level
;
5826 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
5828 return ctx
->cert
->sec_level
;
5831 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
5832 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5833 int op
, int bits
, int nid
,
5834 void *other
, void *ex
))
5836 ctx
->cert
->sec_cb
= cb
;
5839 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
5845 return ctx
->cert
->sec_cb
;
5848 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
5850 ctx
->cert
->sec_ex
= ex
;
5853 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
5855 return ctx
->cert
->sec_ex
;
5858 uint64_t SSL_CTX_get_options(const SSL_CTX
*ctx
)
5860 return ctx
->options
;
5863 uint64_t SSL_get_options(const SSL
*s
)
5865 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5873 uint64_t SSL_CTX_set_options(SSL_CTX
*ctx
, uint64_t op
)
5875 return ctx
->options
|= op
;
5878 uint64_t SSL_set_options(SSL
*s
, uint64_t op
)
5880 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5881 OSSL_PARAM options
[2], *opts
= options
;
5888 *opts
++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS
,
5890 *opts
= OSSL_PARAM_construct_end();
5892 /* Ignore return value */
5893 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
5898 uint64_t SSL_CTX_clear_options(SSL_CTX
*ctx
, uint64_t op
)
5900 return ctx
->options
&= ~op
;
5903 uint64_t SSL_clear_options(SSL
*s
, uint64_t op
)
5905 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5910 return sc
->options
&= ~op
;
5913 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
5915 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5920 return sc
->verified_chain
;
5923 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
5925 #ifndef OPENSSL_NO_CT
5928 * Moves SCTs from the |src| stack to the |dst| stack.
5929 * The source of each SCT will be set to |origin|.
5930 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5932 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5934 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
5935 sct_source_t origin
)
5941 *dst
= sk_SCT_new_null();
5943 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
5948 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
5949 if (SCT_set_source(sct
, origin
) != 1)
5952 if (sk_SCT_push(*dst
, sct
) <= 0)
5960 sk_SCT_push(src
, sct
); /* Put the SCT back */
5965 * Look for data collected during ServerHello and parse if found.
5966 * Returns the number of SCTs extracted.
5968 static int ct_extract_tls_extension_scts(SSL_CONNECTION
*s
)
5970 int scts_extracted
= 0;
5972 if (s
->ext
.scts
!= NULL
) {
5973 const unsigned char *p
= s
->ext
.scts
;
5974 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
5976 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
5978 SCT_LIST_free(scts
);
5981 return scts_extracted
;
5985 * Checks for an OCSP response and then attempts to extract any SCTs found if it
5986 * contains an SCT X509 extension. They will be stored in |s->scts|.
5988 * - The number of SCTs extracted, assuming an OCSP response exists.
5989 * - 0 if no OCSP response exists or it contains no SCTs.
5990 * - A negative integer if an error occurs.
5992 static int ct_extract_ocsp_response_scts(SSL_CONNECTION
*s
)
5994 # ifndef OPENSSL_NO_OCSP
5995 int scts_extracted
= 0;
5996 const unsigned char *p
;
5997 OCSP_BASICRESP
*br
= NULL
;
5998 OCSP_RESPONSE
*rsp
= NULL
;
5999 STACK_OF(SCT
) *scts
= NULL
;
6002 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
6005 p
= s
->ext
.ocsp
.resp
;
6006 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
6010 br
= OCSP_response_get1_basic(rsp
);
6014 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
6015 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
6021 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
6023 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
6024 if (scts_extracted
< 0)
6028 SCT_LIST_free(scts
);
6029 OCSP_BASICRESP_free(br
);
6030 OCSP_RESPONSE_free(rsp
);
6031 return scts_extracted
;
6033 /* Behave as if no OCSP response exists */
6039 * Attempts to extract SCTs from the peer certificate.
6040 * Return the number of SCTs extracted, or a negative integer if an error
6043 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION
*s
)
6045 int scts_extracted
= 0;
6046 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
6049 STACK_OF(SCT
) *scts
=
6050 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
6053 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
6055 SCT_LIST_free(scts
);
6058 return scts_extracted
;
6062 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6063 * response (if it exists) and X509v3 extensions in the certificate.
6064 * Returns NULL if an error occurs.
6066 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
6068 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6073 if (!sc
->scts_parsed
) {
6074 if (ct_extract_tls_extension_scts(sc
) < 0 ||
6075 ct_extract_ocsp_response_scts(sc
) < 0 ||
6076 ct_extract_x509v3_extension_scts(sc
) < 0)
6079 sc
->scts_parsed
= 1;
6086 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
6087 const STACK_OF(SCT
) *scts
, void *unused_arg
)
6092 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
6093 const STACK_OF(SCT
) *scts
, void *unused_arg
)
6095 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
6098 for (i
= 0; i
< count
; ++i
) {
6099 SCT
*sct
= sk_SCT_value(scts
, i
);
6100 int status
= SCT_get_validation_status(sct
);
6102 if (status
== SCT_VALIDATION_STATUS_VALID
)
6105 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_VALID_SCTS
);
6109 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
6112 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6118 * Since code exists that uses the custom extension handler for CT, look
6119 * for this and throw an error if they have already registered to use CT.
6121 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
6122 TLSEXT_TYPE_signed_certificate_timestamp
))
6124 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
6128 if (callback
!= NULL
) {
6130 * If we are validating CT, then we MUST accept SCTs served via OCSP
6132 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
6136 sc
->ct_validation_callback
= callback
;
6137 sc
->ct_validation_callback_arg
= arg
;
6142 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
6143 ssl_ct_validation_cb callback
, void *arg
)
6146 * Since code exists that uses the custom extension handler for CT, look for
6147 * this and throw an error if they have already registered to use CT.
6149 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
6150 TLSEXT_TYPE_signed_certificate_timestamp
))
6152 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
6156 ctx
->ct_validation_callback
= callback
;
6157 ctx
->ct_validation_callback_arg
= arg
;
6161 int SSL_ct_is_enabled(const SSL
*s
)
6163 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6168 return sc
->ct_validation_callback
!= NULL
;
6171 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
6173 return ctx
->ct_validation_callback
!= NULL
;
6176 int ssl_validate_ct(SSL_CONNECTION
*s
)
6179 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
6181 SSL_DANE
*dane
= &s
->dane
;
6182 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
6183 const STACK_OF(SCT
) *scts
;
6186 * If no callback is set, the peer is anonymous, or its chain is invalid,
6187 * skip SCT validation - just return success. Applications that continue
6188 * handshakes without certificates, with unverified chains, or pinned leaf
6189 * certificates are outside the scope of the WebPKI and CT.
6191 * The above exclusions notwithstanding the vast majority of peers will
6192 * have rather ordinary certificate chains validated by typical
6193 * applications that perform certificate verification and therefore will
6194 * process SCTs when enabled.
6196 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
6197 s
->verify_result
!= X509_V_OK
||
6198 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
6202 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6203 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6205 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
6206 switch (dane
->mtlsa
->usage
) {
6207 case DANETLS_USAGE_DANE_TA
:
6208 case DANETLS_USAGE_DANE_EE
:
6213 ctx
= CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s
)->libctx
,
6214 SSL_CONNECTION_GET_CTX(s
)->propq
);
6216 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CT_LIB
);
6220 issuer
= sk_X509_value(s
->verified_chain
, 1);
6221 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
6222 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
6223 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
,
6224 SSL_CONNECTION_GET_CTX(s
)->ctlog_store
);
6225 CT_POLICY_EVAL_CTX_set_time(
6226 ctx
, (uint64_t)SSL_SESSION_get_time(s
->session
) * 1000);
6228 scts
= SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s
));
6231 * This function returns success (> 0) only when all the SCTs are valid, 0
6232 * when some are invalid, and < 0 on various internal errors (out of
6233 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6234 * reason to abort the handshake, that decision is up to the callback.
6235 * Therefore, we error out only in the unexpected case that the return
6236 * value is negative.
6238 * XXX: One might well argue that the return value of this function is an
6239 * unfortunate design choice. Its job is only to determine the validation
6240 * status of each of the provided SCTs. So long as it correctly separates
6241 * the wheat from the chaff it should return success. Failure in this case
6242 * ought to correspond to an inability to carry out its duties.
6244 if (SCT_LIST_validate(scts
, ctx
) < 0) {
6245 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_SCT_VERIFICATION_FAILED
);
6249 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
6251 ret
= 0; /* This function returns 0 on failure */
6253 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_CALLBACK_FAILED
);
6256 CT_POLICY_EVAL_CTX_free(ctx
);
6258 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6259 * failure return code here. Also the application may wish the complete
6260 * the handshake, and then disconnect cleanly at a higher layer, after
6261 * checking the verification status of the completed connection.
6263 * We therefore force a certificate verification failure which will be
6264 * visible via SSL_get_verify_result() and cached as part of any resumed
6267 * Note: the permissive callback is for information gathering only, always
6268 * returns success, and does not affect verification status. Only the
6269 * strict callback or a custom application-specified callback can trigger
6270 * connection failure or record a verification error.
6273 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
6277 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
6279 switch (validation_mode
) {
6281 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6283 case SSL_CT_VALIDATION_PERMISSIVE
:
6284 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
6285 case SSL_CT_VALIDATION_STRICT
:
6286 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
6290 int SSL_enable_ct(SSL
*s
, int validation_mode
)
6292 switch (validation_mode
) {
6294 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6296 case SSL_CT_VALIDATION_PERMISSIVE
:
6297 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
6298 case SSL_CT_VALIDATION_STRICT
:
6299 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
6303 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
6305 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
6308 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
6310 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
6313 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
6315 CTLOG_STORE_free(ctx
->ctlog_store
);
6316 ctx
->ctlog_store
= logs
;
6319 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
6321 return ctx
->ctlog_store
;
6324 #endif /* OPENSSL_NO_CT */
6326 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
6329 c
->client_hello_cb
= cb
;
6330 c
->client_hello_cb_arg
= arg
;
6333 int SSL_client_hello_isv2(SSL
*s
)
6335 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6340 if (sc
->clienthello
== NULL
)
6342 return sc
->clienthello
->isv2
;
6345 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
6347 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6352 if (sc
->clienthello
== NULL
)
6354 return sc
->clienthello
->legacy_version
;
6357 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
6359 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6364 if (sc
->clienthello
== NULL
)
6367 *out
= sc
->clienthello
->random
;
6368 return SSL3_RANDOM_SIZE
;
6371 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
6373 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6378 if (sc
->clienthello
== NULL
)
6381 *out
= sc
->clienthello
->session_id
;
6382 return sc
->clienthello
->session_id_len
;
6385 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
6387 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6392 if (sc
->clienthello
== NULL
)
6395 *out
= PACKET_data(&sc
->clienthello
->ciphersuites
);
6396 return PACKET_remaining(&sc
->clienthello
->ciphersuites
);
6399 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
6401 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6406 if (sc
->clienthello
== NULL
)
6409 *out
= sc
->clienthello
->compressions
;
6410 return sc
->clienthello
->compressions_len
;
6413 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
6418 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6423 if (sc
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
6425 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6426 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6435 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
)
6437 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6438 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6440 if (ext
->received_order
>= num
)
6442 present
[ext
->received_order
] = ext
->type
;
6449 OPENSSL_free(present
);
6453 int SSL_client_hello_get_extension_order(SSL
*s
, uint16_t *exts
, size_t *num_exts
)
6457 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6462 if (sc
->clienthello
== NULL
|| num_exts
== NULL
)
6464 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6465 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6477 if (*num_exts
< num
)
6479 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6480 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6482 if (ext
->received_order
>= num
)
6484 exts
[ext
->received_order
] = ext
->type
;
6491 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
6496 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6501 if (sc
->clienthello
== NULL
)
6503 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; ++i
) {
6504 r
= sc
->clienthello
->pre_proc_exts
+ i
;
6505 if (r
->present
&& r
->type
== type
) {
6507 *out
= PACKET_data(&r
->data
);
6509 *outlen
= PACKET_remaining(&r
->data
);
6516 int SSL_free_buffers(SSL
*ssl
)
6519 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6526 return rl
->rrlmethod
->free_buffers(rl
->rrl
)
6527 && rl
->wrlmethod
->free_buffers(rl
->wrl
);
6530 int SSL_alloc_buffers(SSL
*ssl
)
6533 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6540 return rl
->rrlmethod
->alloc_buffers(rl
->rrl
)
6541 && rl
->wrlmethod
->alloc_buffers(rl
->wrl
);
6544 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
6546 ctx
->keylog_callback
= cb
;
6549 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
6551 return ctx
->keylog_callback
;
6554 static int nss_keylog_int(const char *prefix
,
6556 const uint8_t *parameter_1
,
6557 size_t parameter_1_len
,
6558 const uint8_t *parameter_2
,
6559 size_t parameter_2_len
)
6562 char *cursor
= NULL
;
6566 SSL_CTX
*sctx
= SSL_CONNECTION_GET_CTX(sc
);
6568 if (sctx
->keylog_callback
== NULL
)
6572 * Our output buffer will contain the following strings, rendered with
6573 * space characters in between, terminated by a NULL character: first the
6574 * prefix, then the first parameter, then the second parameter. The
6575 * meaning of each parameter depends on the specific key material being
6576 * logged. Note that the first and second parameters are encoded in
6577 * hexadecimal, so we need a buffer that is twice their lengths.
6579 prefix_len
= strlen(prefix
);
6580 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
6581 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
)
6584 strcpy(cursor
, prefix
);
6585 cursor
+= prefix_len
;
6588 for (i
= 0; i
< parameter_1_len
; i
++) {
6589 sprintf(cursor
, "%02x", parameter_1
[i
]);
6594 for (i
= 0; i
< parameter_2_len
; i
++) {
6595 sprintf(cursor
, "%02x", parameter_2
[i
]);
6600 sctx
->keylog_callback(SSL_CONNECTION_GET_SSL(sc
), (const char *)out
);
6601 OPENSSL_clear_free(out
, out_len
);
6606 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION
*sc
,
6607 const uint8_t *encrypted_premaster
,
6608 size_t encrypted_premaster_len
,
6609 const uint8_t *premaster
,
6610 size_t premaster_len
)
6612 if (encrypted_premaster_len
< 8) {
6613 SSLfatal(sc
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6617 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6618 return nss_keylog_int("RSA",
6620 encrypted_premaster
,
6626 int ssl_log_secret(SSL_CONNECTION
*sc
,
6628 const uint8_t *secret
,
6631 return nss_keylog_int(label
,
6633 sc
->s3
.client_random
,
6639 #define SSLV2_CIPHER_LEN 3
6641 int ssl_cache_cipherlist(SSL_CONNECTION
*s
, PACKET
*cipher_suites
, int sslv2format
)
6645 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6647 if (PACKET_remaining(cipher_suites
) == 0) {
6648 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6652 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6653 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6657 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6658 s
->s3
.tmp
.ciphers_raw
= NULL
;
6659 s
->s3
.tmp
.ciphers_rawlen
= 0;
6662 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
6663 PACKET sslv2ciphers
= *cipher_suites
;
6664 unsigned int leadbyte
;
6668 * We store the raw ciphers list in SSLv3+ format so we need to do some
6669 * preprocessing to convert the list first. If there are any SSLv2 only
6670 * ciphersuites with a non-zero leading byte then we are going to
6671 * slightly over allocate because we won't store those. But that isn't a
6674 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
6675 s
->s3
.tmp
.ciphers_raw
= raw
;
6677 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CRYPTO_LIB
);
6680 for (s
->s3
.tmp
.ciphers_rawlen
= 0;
6681 PACKET_remaining(&sslv2ciphers
) > 0;
6682 raw
+= TLS_CIPHER_LEN
) {
6683 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
6685 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
6688 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
6689 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_PACKET
);
6690 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6691 s
->s3
.tmp
.ciphers_raw
= NULL
;
6692 s
->s3
.tmp
.ciphers_rawlen
= 0;
6696 s
->s3
.tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
6698 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
.tmp
.ciphers_raw
,
6699 &s
->s3
.tmp
.ciphers_rawlen
)) {
6700 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6706 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
6707 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
6708 STACK_OF(SSL_CIPHER
) **scsvs
)
6711 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6716 if (!PACKET_buf_init(&pkt
, bytes
, len
))
6718 return ossl_bytes_to_cipher_list(sc
, &pkt
, sk
, scsvs
, isv2format
, 0);
6721 int ossl_bytes_to_cipher_list(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
6722 STACK_OF(SSL_CIPHER
) **skp
,
6723 STACK_OF(SSL_CIPHER
) **scsvs_out
,
6724 int sslv2format
, int fatal
)
6726 const SSL_CIPHER
*c
;
6727 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
6728 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
6730 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6731 unsigned char cipher
[SSLV2_CIPHER_LEN
];
6733 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6735 if (PACKET_remaining(cipher_suites
) == 0) {
6737 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6739 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHERS_SPECIFIED
);
6743 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6745 SSLfatal(s
, SSL_AD_DECODE_ERROR
,
6746 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6748 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6752 sk
= sk_SSL_CIPHER_new_null();
6753 scsvs
= sk_SSL_CIPHER_new_null();
6754 if (sk
== NULL
|| scsvs
== NULL
) {
6756 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CRYPTO_LIB
);
6758 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
6762 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
6764 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6765 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6766 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6768 if (sslv2format
&& cipher
[0] != '\0')
6771 /* For SSLv2-compat, ignore leading 0-byte. */
6772 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
6774 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
6775 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
6777 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CRYPTO_LIB
);
6779 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
6784 if (PACKET_remaining(cipher_suites
) > 0) {
6786 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_LENGTH
);
6788 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
6795 sk_SSL_CIPHER_free(sk
);
6796 if (scsvs_out
!= NULL
)
6799 sk_SSL_CIPHER_free(scsvs
);
6802 sk_SSL_CIPHER_free(sk
);
6803 sk_SSL_CIPHER_free(scsvs
);
6807 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
6809 ctx
->max_early_data
= max_early_data
;
6814 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
6816 return ctx
->max_early_data
;
6819 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
6821 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6826 sc
->max_early_data
= max_early_data
;
6831 uint32_t SSL_get_max_early_data(const SSL
*s
)
6833 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6838 return sc
->max_early_data
;
6841 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
6843 ctx
->recv_max_early_data
= recv_max_early_data
;
6848 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
6850 return ctx
->recv_max_early_data
;
6853 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
6855 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6860 sc
->recv_max_early_data
= recv_max_early_data
;
6865 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
6867 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6872 return sc
->recv_max_early_data
;
6875 __owur
unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION
*sc
)
6877 /* Return any active Max Fragment Len extension */
6878 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
))
6879 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6881 /* return current SSL connection setting */
6882 return sc
->max_send_fragment
;
6885 __owur
unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION
*sc
)
6887 /* Return a value regarding an active Max Fragment Len extension */
6888 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
)
6889 && sc
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(sc
->session
))
6890 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6892 /* else limit |split_send_fragment| to current |max_send_fragment| */
6893 if (sc
->split_send_fragment
> sc
->max_send_fragment
)
6894 return sc
->max_send_fragment
;
6896 /* return current SSL connection setting */
6897 return sc
->split_send_fragment
;
6900 int SSL_stateless(SSL
*s
)
6903 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6905 /* TODO(QUIC): This will need further work. */
6909 /* Ensure there is no state left over from a previous invocation */
6915 sc
->s3
.flags
|= TLS1_FLAGS_STATELESS
;
6916 ret
= SSL_accept(s
);
6917 sc
->s3
.flags
&= ~TLS1_FLAGS_STATELESS
;
6919 if (ret
> 0 && sc
->ext
.cookieok
)
6922 if (sc
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(sc
))
6928 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
6930 ctx
->pha_enabled
= val
;
6933 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
6935 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6940 sc
->pha_enabled
= val
;
6943 int SSL_verify_client_post_handshake(SSL
*ssl
)
6945 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6950 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
6951 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
6955 ERR_raise(ERR_LIB_SSL
, SSL_R_NOT_SERVER
);
6959 if (!SSL_is_init_finished(ssl
)) {
6960 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
6964 switch (sc
->post_handshake_auth
) {
6966 ERR_raise(ERR_LIB_SSL
, SSL_R_EXTENSION_NOT_RECEIVED
);
6969 case SSL_PHA_EXT_SENT
:
6970 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
6972 case SSL_PHA_EXT_RECEIVED
:
6974 case SSL_PHA_REQUEST_PENDING
:
6975 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_PENDING
);
6977 case SSL_PHA_REQUESTED
:
6978 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_SENT
);
6982 sc
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
6984 /* checks verify_mode and algorithm_auth */
6985 if (!send_certificate_request(sc
)) {
6986 sc
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
6987 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CONFIG
);
6991 ossl_statem_set_in_init(sc
, 1);
6995 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
6996 SSL_CTX_generate_session_ticket_fn gen_cb
,
6997 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
7000 ctx
->generate_ticket_cb
= gen_cb
;
7001 ctx
->decrypt_ticket_cb
= dec_cb
;
7002 ctx
->ticket_cb_data
= arg
;
7006 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
7007 SSL_allow_early_data_cb_fn cb
,
7010 ctx
->allow_early_data_cb
= cb
;
7011 ctx
->allow_early_data_cb_data
= arg
;
7014 void SSL_set_allow_early_data_cb(SSL
*s
,
7015 SSL_allow_early_data_cb_fn cb
,
7018 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7023 sc
->allow_early_data_cb
= cb
;
7024 sc
->allow_early_data_cb_data
= arg
;
7027 const EVP_CIPHER
*ssl_evp_cipher_fetch(OSSL_LIB_CTX
*libctx
,
7029 const char *properties
)
7031 const EVP_CIPHER
*ciph
;
7033 ciph
= tls_get_cipher_from_engine(nid
);
7038 * If there is no engine cipher then we do an explicit fetch. This may fail
7039 * and that could be ok
7042 ciph
= EVP_CIPHER_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
7048 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
)
7050 /* Don't up-ref an implicit EVP_CIPHER */
7051 if (EVP_CIPHER_get0_provider(cipher
) == NULL
)
7055 * The cipher was explicitly fetched and therefore it is safe to cast
7058 return EVP_CIPHER_up_ref((EVP_CIPHER
*)cipher
);
7061 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
)
7066 if (EVP_CIPHER_get0_provider(cipher
) != NULL
) {
7068 * The cipher was explicitly fetched and therefore it is safe to cast
7071 EVP_CIPHER_free((EVP_CIPHER
*)cipher
);
7075 const EVP_MD
*ssl_evp_md_fetch(OSSL_LIB_CTX
*libctx
,
7077 const char *properties
)
7081 md
= tls_get_digest_from_engine(nid
);
7085 /* Otherwise we do an explicit fetch */
7087 md
= EVP_MD_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
7092 int ssl_evp_md_up_ref(const EVP_MD
*md
)
7094 /* Don't up-ref an implicit EVP_MD */
7095 if (EVP_MD_get0_provider(md
) == NULL
)
7099 * The digest was explicitly fetched and therefore it is safe to cast
7102 return EVP_MD_up_ref((EVP_MD
*)md
);
7105 void ssl_evp_md_free(const EVP_MD
*md
)
7110 if (EVP_MD_get0_provider(md
) != NULL
) {
7112 * The digest was explicitly fetched and therefore it is safe to cast
7115 EVP_MD_free((EVP_MD
*)md
);
7119 int SSL_set0_tmp_dh_pkey(SSL
*s
, EVP_PKEY
*dhpkey
)
7121 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7126 if (!ssl_security(sc
, SSL_SECOP_TMP_DH
,
7127 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
7128 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
7131 EVP_PKEY_free(sc
->cert
->dh_tmp
);
7132 sc
->cert
->dh_tmp
= dhpkey
;
7136 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX
*ctx
, EVP_PKEY
*dhpkey
)
7138 if (!ssl_ctx_security(ctx
, SSL_SECOP_TMP_DH
,
7139 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
7140 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
7143 EVP_PKEY_free(ctx
->cert
->dh_tmp
);
7144 ctx
->cert
->dh_tmp
= dhpkey
;
7148 /* QUIC-specific methods which are supported on QUIC connections only. */
7149 int SSL_tick(SSL
*s
)
7153 #ifndef OPENSSL_NO_QUIC
7155 return ossl_quic_tick(s
);
7158 sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
7159 if (sc
!= NULL
&& SSL_CONNECTION_IS_DTLS(sc
))
7161 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7162 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7163 * can also return 0 if s is NULL or not a DTLS object, but we've
7164 * already ruled out those possibilities above, so this is not possible
7165 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7168 return DTLSv1_handle_timeout(s
) >= 0;
7173 int SSL_get_tick_timeout(SSL
*s
, struct timeval
*tv
)
7177 #ifndef OPENSSL_NO_QUIC
7179 return ossl_quic_get_tick_timeout(s
, tv
);
7182 sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
7183 if (sc
!= NULL
&& SSL_CONNECTION_IS_DTLS(sc
)
7184 && DTLSv1_get_timeout(s
, tv
))
7192 int SSL_get_rpoll_descriptor(SSL
*s
, BIO_POLL_DESCRIPTOR
*desc
)
7194 #ifndef OPENSSL_NO_QUIC
7198 return ossl_quic_get_rpoll_descriptor(s
, desc
);
7204 int SSL_get_wpoll_descriptor(SSL
*s
, BIO_POLL_DESCRIPTOR
*desc
)
7206 #ifndef OPENSSL_NO_QUIC
7210 return ossl_quic_get_wpoll_descriptor(s
, desc
);
7216 int SSL_net_read_desired(SSL
*s
)
7218 #ifndef OPENSSL_NO_QUIC
7222 return ossl_quic_get_net_read_desired(s
);
7228 int SSL_net_write_desired(SSL
*s
)
7230 #ifndef OPENSSL_NO_QUIC
7234 return ossl_quic_get_net_write_desired(s
);
7240 int SSL_set_blocking_mode(SSL
*s
, int blocking
)
7242 #ifndef OPENSSL_NO_QUIC
7246 return ossl_quic_conn_set_blocking_mode(s
, blocking
);
7252 int SSL_get_blocking_mode(SSL
*s
)
7254 #ifndef OPENSSL_NO_QUIC
7258 return ossl_quic_conn_get_blocking_mode(s
);
7264 int SSL_set_initial_peer_addr(SSL
*s
, const BIO_ADDR
*peer_addr
)
7266 #ifndef OPENSSL_NO_QUIC
7270 return ossl_quic_conn_set_initial_peer_addr(s
, peer_addr
);
7276 int SSL_shutdown_ex(SSL
*ssl
, uint64_t flags
,
7277 const SSL_SHUTDOWN_EX_ARGS
*args
,
7280 #ifndef OPENSSL_NO_QUIC
7282 return SSL_shutdown(ssl
);
7284 return ossl_quic_conn_shutdown(ssl
, flags
, args
, args_len
);
7286 return SSL_shutdown(ssl
);
7290 int SSL_stream_conclude(SSL
*ssl
, uint64_t flags
)
7292 #ifndef OPENSSL_NO_QUIC
7296 return ossl_quic_conn_stream_conclude(ssl
);
7302 SSL
*SSL_new_stream(SSL
*s
, uint64_t flags
)
7304 #ifndef OPENSSL_NO_QUIC
7308 return ossl_quic_conn_stream_new(s
, flags
);
7314 SSL
*SSL_get0_connection(SSL
*s
)
7316 #ifndef OPENSSL_NO_QUIC
7320 return ossl_quic_get0_connection(s
);
7326 int SSL_is_connection(SSL
*s
)
7328 return SSL_get0_connection(s
) == s
;
7331 int SSL_get_stream_type(SSL
*s
)
7333 #ifndef OPENSSL_NO_QUIC
7335 return SSL_STREAM_TYPE_BIDI
;
7337 return ossl_quic_get_stream_type(s
);
7339 return SSL_STREAM_TYPE_BIDI
;
7343 uint64_t SSL_get_stream_id(SSL
*s
)
7345 #ifndef OPENSSL_NO_QUIC
7349 return ossl_quic_get_stream_id(s
);
7355 int SSL_set_default_stream_mode(SSL
*s
, uint32_t mode
)
7357 #ifndef OPENSSL_NO_QUIC
7361 return ossl_quic_set_default_stream_mode(s
, mode
);
7367 SSL
*SSL_detach_stream(SSL
*s
)
7369 #ifndef OPENSSL_NO_QUIC
7373 return ossl_quic_detach_stream(s
);
7379 int SSL_attach_stream(SSL
*conn
, SSL
*stream
)
7381 #ifndef OPENSSL_NO_QUIC
7385 return ossl_quic_attach_stream(conn
, stream
);
7391 int SSL_add_expected_rpk(SSL
*s
, EVP_PKEY
*rpk
)
7393 unsigned char *data
= NULL
;
7394 SSL_DANE
*dane
= SSL_get0_dane(s
);
7397 if (dane
== NULL
|| dane
->dctx
== NULL
)
7399 if ((ret
= i2d_PUBKEY(rpk
, &data
)) <= 0)
7402 ret
= SSL_dane_tlsa_add(s
, DANETLS_USAGE_DANE_EE
,
7403 DANETLS_SELECTOR_SPKI
,
7404 DANETLS_MATCHING_FULL
,
7405 data
, (size_t)ret
) > 0;
7410 EVP_PKEY
*SSL_get0_peer_rpk(const SSL
*s
)
7412 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7414 if (sc
== NULL
|| sc
->session
== NULL
)
7416 return sc
->session
->peer_rpk
;
7419 int SSL_get_negotiated_client_cert_type(const SSL
*s
)
7421 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7426 return sc
->ext
.client_cert_type
;
7429 int SSL_get_negotiated_server_cert_type(const SSL
*s
)
7431 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7436 return sc
->ext
.server_cert_type
;
7439 static int validate_cert_type(const unsigned char *val
, size_t len
)
7445 if (val
== NULL
&& len
== 0)
7448 if (val
== NULL
|| len
== 0)
7451 for (i
= 0; i
< len
; i
++) {
7453 case TLSEXT_cert_type_rpk
:
7458 case TLSEXT_cert_type_x509
:
7463 case TLSEXT_cert_type_pgp
:
7464 case TLSEXT_cert_type_1609dot2
:
7472 static int set_cert_type(unsigned char **cert_type
,
7473 size_t *cert_type_len
,
7474 const unsigned char *val
,
7477 unsigned char *tmp
= NULL
;
7479 if (!validate_cert_type(val
, len
))
7482 if (val
!= NULL
&& (tmp
= OPENSSL_memdup(val
, len
)) == NULL
)
7485 OPENSSL_free(*cert_type
);
7487 *cert_type_len
= len
;
7491 int SSL_set1_client_cert_type(SSL
*s
, const unsigned char *val
, size_t len
)
7493 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7495 return set_cert_type(&sc
->client_cert_type
, &sc
->client_cert_type_len
,
7499 int SSL_set1_server_cert_type(SSL
*s
, const unsigned char *val
, size_t len
)
7501 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7503 return set_cert_type(&sc
->server_cert_type
, &sc
->server_cert_type_len
,
7507 int SSL_CTX_set1_client_cert_type(SSL_CTX
*ctx
, const unsigned char *val
, size_t len
)
7509 return set_cert_type(&ctx
->client_cert_type
, &ctx
->client_cert_type_len
,
7513 int SSL_CTX_set1_server_cert_type(SSL_CTX
*ctx
, const unsigned char *val
, size_t len
)
7515 return set_cert_type(&ctx
->server_cert_type
, &ctx
->server_cert_type_len
,
7519 int SSL_get0_client_cert_type(const SSL
*s
, unsigned char **t
, size_t *len
)
7521 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
7523 if (t
== NULL
|| len
== NULL
)
7526 *t
= sc
->client_cert_type
;
7527 *len
= sc
->client_cert_type_len
;
7531 int SSL_get0_server_cert_type(const SSL
*s
, unsigned char **t
, size_t *len
)
7533 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
7535 if (t
== NULL
|| len
== NULL
)
7538 *t
= sc
->server_cert_type
;
7539 *len
= sc
->server_cert_type_len
;
7543 int SSL_CTX_get0_client_cert_type(const SSL_CTX
*ctx
, unsigned char **t
, size_t *len
)
7545 if (t
== NULL
|| len
== NULL
)
7548 *t
= ctx
->client_cert_type
;
7549 *len
= ctx
->client_cert_type_len
;
7553 int SSL_CTX_get0_server_cert_type(const SSL_CTX
*ctx
, unsigned char **t
, size_t *len
)
7555 if (t
== NULL
|| len
== NULL
)
7558 *t
= ctx
->server_cert_type
;
7559 *len
= ctx
->server_cert_type_len
;