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
,
431 int minisdtls
= 0, maxisdtls
= 0;
433 /* Figure out if we're doing DTLS versions or TLS versions */
434 if (min_version
== DTLS1_BAD_VER
435 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
437 if (max_version
== DTLS1_BAD_VER
438 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
440 /* A wildcard version of 0 could be DTLS or TLS. */
441 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
442 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
443 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
447 if (minisdtls
|| maxisdtls
) {
448 /* Do DTLS version checks. */
449 if (min_version
== 0)
450 /* Ignore DTLS1_BAD_VER */
451 min_version
= DTLS1_VERSION
;
452 if (max_version
== 0)
453 max_version
= DTLS1_2_VERSION
;
454 #ifdef OPENSSL_NO_DTLS1_2
455 if (max_version
== DTLS1_2_VERSION
)
456 max_version
= DTLS1_VERSION
;
458 #ifdef OPENSSL_NO_DTLS1
459 if (min_version
== DTLS1_VERSION
)
460 min_version
= DTLS1_2_VERSION
;
462 /* Done massaging versions; do the check. */
464 #ifdef OPENSSL_NO_DTLS1
465 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
466 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
468 #ifdef OPENSSL_NO_DTLS1_2
469 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
470 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
475 /* Regular TLS version checks. */
476 if (min_version
== 0)
477 min_version
= is_quic
? TLS1_3_VERSION
: SSL3_VERSION
;
478 if (max_version
== 0)
479 max_version
= TLS1_3_VERSION
;
480 #ifdef OPENSSL_NO_TLS1_3
481 if (max_version
== TLS1_3_VERSION
)
482 max_version
= TLS1_2_VERSION
;
484 #ifdef OPENSSL_NO_TLS1_2
485 if (max_version
== TLS1_2_VERSION
)
486 max_version
= TLS1_1_VERSION
;
488 #ifdef OPENSSL_NO_TLS1_1
489 if (max_version
== TLS1_1_VERSION
)
490 max_version
= TLS1_VERSION
;
492 #ifdef OPENSSL_NO_TLS1
493 if (max_version
== TLS1_VERSION
)
494 max_version
= SSL3_VERSION
;
496 #ifdef OPENSSL_NO_SSL3
497 if (min_version
== SSL3_VERSION
)
498 min_version
= TLS1_VERSION
;
500 #ifdef OPENSSL_NO_TLS1
501 if (min_version
== TLS1_VERSION
)
502 min_version
= TLS1_1_VERSION
;
504 #ifdef OPENSSL_NO_TLS1_1
505 if (min_version
== TLS1_1_VERSION
)
506 min_version
= TLS1_2_VERSION
;
508 #ifdef OPENSSL_NO_TLS1_2
509 if (min_version
== TLS1_2_VERSION
)
510 min_version
= TLS1_3_VERSION
;
512 /* Done massaging versions; do the check. */
514 #ifdef OPENSSL_NO_SSL3
515 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
517 #ifdef OPENSSL_NO_TLS1
518 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
520 #ifdef OPENSSL_NO_TLS1_1
521 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
523 #ifdef OPENSSL_NO_TLS1_2
524 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
526 #ifdef OPENSSL_NO_TLS1_3
527 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
535 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
537 * Define a VPROC function for HP NonStop build ssl library.
538 * This is used by platform version identification tools.
539 * Do not inline this procedure or make it static.
541 # define OPENSSL_VPROC_STRING_(x) x##_SSL
542 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
543 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
544 void OPENSSL_VPROC_FUNC(void) {}
547 static int clear_record_layer(SSL_CONNECTION
*s
)
551 /* We try and reset both record layers even if one fails */
553 ret
= ssl_set_new_record_layer(s
,
554 SSL_CONNECTION_IS_DTLS(s
) ? DTLS_ANY_VERSION
556 OSSL_RECORD_DIRECTION_READ
,
557 OSSL_RECORD_PROTECTION_LEVEL_NONE
, NULL
, 0,
558 NULL
, 0, NULL
, 0, NULL
, 0, NULL
, 0,
559 NID_undef
, NULL
, NULL
, NULL
);
561 ret
&= ssl_set_new_record_layer(s
,
562 SSL_CONNECTION_IS_DTLS(s
) ? DTLS_ANY_VERSION
564 OSSL_RECORD_DIRECTION_WRITE
,
565 OSSL_RECORD_PROTECTION_LEVEL_NONE
, NULL
, 0,
566 NULL
, 0, NULL
, 0, NULL
, 0, NULL
, 0,
567 NID_undef
, NULL
, NULL
, NULL
);
569 /* SSLfatal already called in the event of failure */
573 int SSL_clear(SSL
*s
)
575 if (s
->method
== NULL
) {
576 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_METHOD_SPECIFIED
);
580 return s
->method
->ssl_reset(s
);
583 int ossl_ssl_connection_reset(SSL
*s
)
585 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
590 if (ssl_clear_bad_session(sc
)) {
591 SSL_SESSION_free(sc
->session
);
594 SSL_SESSION_free(sc
->psksession
);
595 sc
->psksession
= NULL
;
596 OPENSSL_free(sc
->psksession_id
);
597 sc
->psksession_id
= NULL
;
598 sc
->psksession_id_len
= 0;
599 sc
->hello_retry_request
= 0;
600 sc
->sent_tickets
= 0;
606 if (sc
->renegotiate
) {
607 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
611 ossl_statem_clear(sc
);
613 /* TODO(QUIC): Version handling not yet clear */
614 sc
->version
= s
->method
->version
;
615 sc
->client_version
= sc
->version
;
616 sc
->rwstate
= SSL_NOTHING
;
618 BUF_MEM_free(sc
->init_buf
);
620 sc
->first_packet
= 0;
622 sc
->key_update
= SSL_KEY_UPDATE_NONE
;
623 memset(sc
->ext
.compress_certificate_from_peer
, 0,
624 sizeof(sc
->ext
.compress_certificate_from_peer
));
625 sc
->ext
.compress_certificate_sent
= 0;
627 EVP_MD_CTX_free(sc
->pha_dgst
);
630 /* Reset DANE verification result state */
633 X509_free(sc
->dane
.mcert
);
634 sc
->dane
.mcert
= NULL
;
635 sc
->dane
.mtlsa
= NULL
;
637 /* Clear the verification result peername */
638 X509_VERIFY_PARAM_move_peername(sc
->param
, NULL
);
640 /* Clear any shared connection state */
641 OPENSSL_free(sc
->shared_sigalgs
);
642 sc
->shared_sigalgs
= NULL
;
643 sc
->shared_sigalgslen
= 0;
646 * Check to see if we were changed into a different method, if so, revert
649 if (s
->method
!= s
->defltmeth
) {
650 s
->method
->ssl_deinit(s
);
651 s
->method
= s
->defltmeth
;
652 if (!s
->method
->ssl_init(s
))
655 if (!s
->method
->ssl_clear(s
))
659 RECORD_LAYER_clear(&sc
->rlayer
);
660 BIO_free(sc
->rlayer
.rrlnext
);
661 sc
->rlayer
.rrlnext
= NULL
;
663 if (!clear_record_layer(sc
))
669 #ifndef OPENSSL_NO_DEPRECATED_3_0
670 /** Used to change an SSL_CTXs default SSL method type */
671 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
673 STACK_OF(SSL_CIPHER
) *sk
;
675 if (IS_QUIC_CTX(ctx
)) {
676 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
682 if (!SSL_CTX_set_ciphersuites(ctx
, OSSL_default_ciphersuites())) {
683 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
686 sk
= ssl_create_cipher_list(ctx
,
687 ctx
->tls13_ciphersuites
,
689 &(ctx
->cipher_list_by_id
),
690 OSSL_default_cipher_list(), ctx
->cert
);
691 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
692 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
699 SSL
*SSL_new(SSL_CTX
*ctx
)
702 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_CTX
);
705 if (ctx
->method
== NULL
) {
706 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
709 return ctx
->method
->ssl_new(ctx
);
712 int ossl_ssl_init(SSL
*ssl
, SSL_CTX
*ctx
, const SSL_METHOD
*method
, int type
)
716 ssl
->lock
= CRYPTO_THREAD_lock_new();
717 if (ssl
->lock
== NULL
)
720 if (!CRYPTO_NEW_REF(&ssl
->references
, 1)) {
721 CRYPTO_THREAD_lock_free(ssl
->lock
);
725 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, ssl
, &ssl
->ex_data
)) {
726 CRYPTO_THREAD_lock_free(ssl
->lock
);
727 CRYPTO_FREE_REF(&ssl
->references
);
735 ssl
->defltmeth
= ssl
->method
= method
;
740 SSL
*ossl_ssl_connection_new_int(SSL_CTX
*ctx
, const SSL_METHOD
*method
)
745 s
= OPENSSL_zalloc(sizeof(*s
));
750 if (!ossl_ssl_init(ssl
, ctx
, method
, SSL_TYPE_SSL_CONNECTION
)) {
757 RECORD_LAYER_init(&s
->rlayer
, s
);
759 s
->options
= ctx
->options
;
761 s
->dane
.flags
= ctx
->dane
.flags
;
762 if (method
->version
== ctx
->method
->version
) {
763 s
->min_proto_version
= ctx
->min_proto_version
;
764 s
->max_proto_version
= ctx
->max_proto_version
;
767 s
->min_proto_version
= ctx
->min_proto_version
;
768 if (IS_QUIC_CTX(ctx
) && s
->min_proto_version
< TLS1_3_VERSION
)
769 s
->min_proto_version
= TLS1_3_VERSION
;
771 s
->max_proto_version
= ctx
->max_proto_version
;
772 if (IS_QUIC_CTX(ctx
) && s
->max_proto_version
< TLS1_3_VERSION
)
773 s
->max_proto_version
= 0;
776 s
->max_cert_list
= ctx
->max_cert_list
;
778 if (!IS_QUIC_CTX(ctx
)) {
779 s
->max_early_data
= ctx
->max_early_data
;
780 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
783 s
->num_tickets
= ctx
->num_tickets
;
784 s
->pha_enabled
= ctx
->pha_enabled
;
786 /* Shallow copy of the ciphersuites stack */
787 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
788 if (s
->tls13_ciphersuites
== NULL
)
792 * Earlier library versions used to copy the pointer to the CERT, not
793 * its contents; only when setting new parameters for the per-SSL
794 * copy, ssl_cert_new would be called (and the direct reference to
795 * the per-SSL_CTX settings would be lost, but those still were
796 * indirectly accessed for various purposes, and for that reason they
797 * used to be known as s->ctx->default_cert). Now we don't look at the
798 * SSL_CTX's CERT after having duplicated it once.
800 s
->cert
= ssl_cert_dup(ctx
->cert
);
804 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
805 s
->msg_callback
= ctx
->msg_callback
;
806 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
807 s
->verify_mode
= ctx
->verify_mode
;
808 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
809 if (!IS_QUIC_CTX(ctx
)) {
810 s
->rlayer
.record_padding_cb
= ctx
->record_padding_cb
;
811 s
->rlayer
.record_padding_arg
= ctx
->record_padding_arg
;
812 s
->rlayer
.block_padding
= ctx
->block_padding
;
814 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
815 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
817 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
818 s
->verify_callback
= ctx
->default_verify_callback
;
819 s
->generate_session_id
= ctx
->generate_session_id
;
821 s
->param
= X509_VERIFY_PARAM_new();
822 if (s
->param
== NULL
)
824 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
825 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
827 if (!IS_QUIC_CTX(ctx
))
828 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
830 s
->max_send_fragment
= ctx
->max_send_fragment
;
831 s
->split_send_fragment
= ctx
->split_send_fragment
;
832 s
->max_pipelines
= ctx
->max_pipelines
;
833 s
->rlayer
.default_read_buf_len
= ctx
->default_read_buf_len
;
836 s
->ext
.debug_arg
= NULL
;
837 s
->ext
.ticket_expected
= 0;
838 s
->ext
.status_type
= ctx
->ext
.status_type
;
839 s
->ext
.status_expected
= 0;
840 s
->ext
.ocsp
.ids
= NULL
;
841 s
->ext
.ocsp
.exts
= NULL
;
842 s
->ext
.ocsp
.resp
= NULL
;
843 s
->ext
.ocsp
.resp_len
= 0;
845 s
->session_ctx
= ctx
;
846 if (ctx
->ext
.ecpointformats
) {
847 s
->ext
.ecpointformats
=
848 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
849 ctx
->ext
.ecpointformats_len
);
850 if (!s
->ext
.ecpointformats
) {
851 s
->ext
.ecpointformats_len
= 0;
854 s
->ext
.ecpointformats_len
=
855 ctx
->ext
.ecpointformats_len
;
857 if (ctx
->ext
.supportedgroups
) {
858 s
->ext
.supportedgroups
=
859 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
860 ctx
->ext
.supportedgroups_len
861 * sizeof(*ctx
->ext
.supportedgroups
));
862 if (!s
->ext
.supportedgroups
) {
863 s
->ext
.supportedgroups_len
= 0;
866 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
869 #ifndef OPENSSL_NO_NEXTPROTONEG
873 if (ctx
->ext
.alpn
!= NULL
) {
874 s
->ext
.alpn
= OPENSSL_malloc(ctx
->ext
.alpn_len
);
875 if (s
->ext
.alpn
== NULL
) {
879 memcpy(s
->ext
.alpn
, ctx
->ext
.alpn
, ctx
->ext
.alpn_len
);
880 s
->ext
.alpn_len
= ctx
->ext
.alpn_len
;
883 s
->verified_chain
= NULL
;
884 s
->verify_result
= X509_V_OK
;
886 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
887 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
889 s
->key_update
= SSL_KEY_UPDATE_NONE
;
891 if (!IS_QUIC_CTX(ctx
)) {
892 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
893 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
896 if (!method
->ssl_init(ssl
))
899 s
->server
= (method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
901 if (!method
->ssl_reset(ssl
))
904 #ifndef OPENSSL_NO_PSK
905 s
->psk_client_callback
= ctx
->psk_client_callback
;
906 s
->psk_server_callback
= ctx
->psk_server_callback
;
908 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
909 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
911 s
->async_cb
= ctx
->async_cb
;
912 s
->async_cb_arg
= ctx
->async_cb_arg
;
916 #ifndef OPENSSL_NO_COMP_ALG
917 memcpy(s
->cert_comp_prefs
, ctx
->cert_comp_prefs
, sizeof(s
->cert_comp_prefs
));
919 if (ctx
->client_cert_type
!= NULL
) {
920 s
->client_cert_type
= OPENSSL_memdup(ctx
->client_cert_type
,
921 ctx
->client_cert_type_len
);
922 if (s
->client_cert_type
== NULL
)
924 s
->client_cert_type_len
= ctx
->client_cert_type_len
;
926 if (ctx
->server_cert_type
!= NULL
) {
927 s
->server_cert_type
= OPENSSL_memdup(ctx
->server_cert_type
,
928 ctx
->server_cert_type_len
);
929 if (s
->server_cert_type
== NULL
)
931 s
->server_cert_type_len
= ctx
->server_cert_type_len
;
934 #ifndef OPENSSL_NO_CT
935 if (!SSL_set_ct_validation_callback(ssl
, ctx
->ct_validation_callback
,
936 ctx
->ct_validation_callback_arg
))
940 s
->ssl_pkey_num
= SSL_PKEY_NUM
+ ctx
->sigalg_list_len
;
943 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
946 ERR_raise(ERR_LIB_SSL
, ERR_R_ASN1_LIB
);
949 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
955 SSL
*ossl_ssl_connection_new(SSL_CTX
*ctx
)
957 return ossl_ssl_connection_new_int(ctx
, ctx
->method
);
960 int SSL_is_dtls(const SSL
*s
)
962 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
964 #ifndef OPENSSL_NO_QUIC
965 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
972 return SSL_CONNECTION_IS_DTLS(sc
) ? 1 : 0;
975 int SSL_is_tls(const SSL
*s
)
977 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
979 #ifndef OPENSSL_NO_QUIC
980 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
987 return SSL_CONNECTION_IS_DTLS(sc
) ? 0 : 1;
990 int SSL_is_quic(const SSL
*s
)
992 #ifndef OPENSSL_NO_QUIC
993 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
999 int SSL_up_ref(SSL
*s
)
1003 if (CRYPTO_UP_REF(&s
->references
, &i
) <= 0)
1006 REF_PRINT_COUNT("SSL", s
);
1007 REF_ASSERT_ISNT(i
< 2);
1008 return ((i
> 1) ? 1 : 0);
1011 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
1012 unsigned int sid_ctx_len
)
1014 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
1015 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
1018 ctx
->sid_ctx_length
= sid_ctx_len
;
1019 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
1024 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
1025 unsigned int sid_ctx_len
)
1027 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1032 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
1033 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
1036 sc
->sid_ctx_length
= sid_ctx_len
;
1037 memcpy(sc
->sid_ctx
, sid_ctx
, sid_ctx_len
);
1042 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
1044 if (!CRYPTO_THREAD_write_lock(ctx
->lock
))
1046 ctx
->generate_session_id
= cb
;
1047 CRYPTO_THREAD_unlock(ctx
->lock
);
1051 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
1053 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1055 if (sc
== NULL
|| !CRYPTO_THREAD_write_lock(ssl
->lock
))
1057 sc
->generate_session_id
= cb
;
1058 CRYPTO_THREAD_unlock(ssl
->lock
);
1062 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
1063 unsigned int id_len
)
1066 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
1067 * we can "construct" a session to give us the desired check - i.e. to
1068 * find if there's a session in the hash table that would conflict with
1069 * any new session built out of this id/id_len and the ssl_version in use
1073 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
1075 if (sc
== NULL
|| id_len
> sizeof(r
.session_id
))
1078 r
.ssl_version
= sc
->version
;
1079 r
.session_id_length
= id_len
;
1080 memcpy(r
.session_id
, id
, id_len
);
1082 if (!CRYPTO_THREAD_read_lock(sc
->session_ctx
->lock
))
1084 p
= lh_SSL_SESSION_retrieve(sc
->session_ctx
->sessions
, &r
);
1085 CRYPTO_THREAD_unlock(sc
->session_ctx
->lock
);
1089 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
1091 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
1094 int SSL_set_purpose(SSL
*s
, int purpose
)
1096 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1101 return X509_VERIFY_PARAM_set_purpose(sc
->param
, purpose
);
1104 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
1106 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
1109 int SSL_set_trust(SSL
*s
, int trust
)
1111 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1116 return X509_VERIFY_PARAM_set_trust(sc
->param
, trust
);
1119 int SSL_set1_host(SSL
*s
, const char *hostname
)
1121 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1126 /* If a hostname is provided and parses as an IP address,
1127 * treat it as such. */
1128 if (hostname
!= NULL
1129 && X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
) == 1)
1132 return X509_VERIFY_PARAM_set1_host(sc
->param
, hostname
, 0);
1135 int SSL_add1_host(SSL
*s
, const char *hostname
)
1137 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1142 /* If a hostname is provided and parses as an IP address,
1143 * treat it as such. */
1146 ASN1_OCTET_STRING
*ip
;
1149 ip
= a2i_IPADDRESS(hostname
);
1151 /* We didn't want it; only to check if it *is* an IP address */
1152 ASN1_OCTET_STRING_free(ip
);
1154 old_ip
= X509_VERIFY_PARAM_get1_ip_asc(sc
->param
);
1157 OPENSSL_free(old_ip
);
1158 /* There can be only one IP address */
1162 return X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
);
1166 return X509_VERIFY_PARAM_add1_host(sc
->param
, hostname
, 0);
1169 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
1171 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1176 X509_VERIFY_PARAM_set_hostflags(sc
->param
, flags
);
1179 const char *SSL_get0_peername(SSL
*s
)
1181 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1186 return X509_VERIFY_PARAM_get0_peername(sc
->param
);
1189 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
1191 return dane_ctx_enable(&ctx
->dane
);
1194 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
1196 unsigned long orig
= ctx
->dane
.flags
;
1198 ctx
->dane
.flags
|= flags
;
1202 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
1204 unsigned long orig
= ctx
->dane
.flags
;
1206 ctx
->dane
.flags
&= ~flags
;
1210 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1213 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1219 if (s
->ctx
->dane
.mdmax
== 0) {
1220 ERR_raise(ERR_LIB_SSL
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1223 if (dane
->trecs
!= NULL
) {
1224 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_ALREADY_ENABLED
);
1229 * Default SNI name. This rejects empty names, while set1_host below
1230 * accepts them and disables hostname checks. To avoid side-effects with
1231 * invalid input, set the SNI name first.
1233 if (sc
->ext
.hostname
== NULL
) {
1234 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1235 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1240 /* Primary RFC6125 reference identifier */
1241 if (!X509_VERIFY_PARAM_set1_host(sc
->param
, basedomain
, 0)) {
1242 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1248 dane
->dctx
= &s
->ctx
->dane
;
1249 dane
->trecs
= sk_danetls_record_new_null();
1251 if (dane
->trecs
== NULL
) {
1252 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
1258 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1261 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1266 orig
= sc
->dane
.flags
;
1268 sc
->dane
.flags
|= flags
;
1272 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1275 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1280 orig
= sc
->dane
.flags
;
1282 sc
->dane
.flags
&= ~flags
;
1286 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1289 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1296 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1300 *mcert
= dane
->mcert
;
1302 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1307 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1308 uint8_t *mtype
, const unsigned char **data
, size_t *dlen
)
1311 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1318 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1322 *usage
= dane
->mtlsa
->usage
;
1324 *selector
= dane
->mtlsa
->selector
;
1326 *mtype
= dane
->mtlsa
->mtype
;
1328 *data
= dane
->mtlsa
->data
;
1330 *dlen
= dane
->mtlsa
->dlen
;
1335 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1337 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1345 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1346 uint8_t mtype
, const unsigned char *data
, size_t dlen
)
1348 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1353 return dane_tlsa_add(&sc
->dane
, usage
, selector
, mtype
, data
, dlen
);
1356 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1359 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1362 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1364 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1367 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1369 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1374 return X509_VERIFY_PARAM_set1(sc
->param
, vpm
);
1377 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1382 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1384 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1392 void SSL_certs_clear(SSL
*s
)
1394 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1399 ssl_cert_clear_certs(sc
->cert
);
1402 void SSL_free(SSL
*s
)
1408 CRYPTO_DOWN_REF(&s
->references
, &i
);
1409 REF_PRINT_COUNT("SSL", s
);
1412 REF_ASSERT_ISNT(i
< 0);
1414 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1416 if (s
->method
!= NULL
)
1417 s
->method
->ssl_free(s
);
1419 SSL_CTX_free(s
->ctx
);
1420 CRYPTO_THREAD_lock_free(s
->lock
);
1421 CRYPTO_FREE_REF(&s
->references
);
1426 void ossl_ssl_connection_free(SSL
*ssl
)
1430 s
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
1434 X509_VERIFY_PARAM_free(s
->param
);
1435 dane_final(&s
->dane
);
1437 /* Ignore return value */
1438 ssl_free_wbio_buffer(s
);
1440 RECORD_LAYER_clear(&s
->rlayer
);
1442 BUF_MEM_free(s
->init_buf
);
1444 /* add extra stuff */
1445 sk_SSL_CIPHER_free(s
->cipher_list
);
1446 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1447 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1448 sk_SSL_CIPHER_free(s
->peer_ciphers
);
1450 /* Make the next call work :-) */
1451 if (s
->session
!= NULL
) {
1452 ssl_clear_bad_session(s
);
1453 SSL_SESSION_free(s
->session
);
1455 SSL_SESSION_free(s
->psksession
);
1456 OPENSSL_free(s
->psksession_id
);
1458 ssl_cert_free(s
->cert
);
1459 OPENSSL_free(s
->shared_sigalgs
);
1460 /* Free up if allocated */
1462 OPENSSL_free(s
->ext
.hostname
);
1463 SSL_CTX_free(s
->session_ctx
);
1464 OPENSSL_free(s
->ext
.ecpointformats
);
1465 OPENSSL_free(s
->ext
.peer_ecpointformats
);
1466 OPENSSL_free(s
->ext
.supportedgroups
);
1467 OPENSSL_free(s
->ext
.peer_supportedgroups
);
1468 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1469 #ifndef OPENSSL_NO_OCSP
1470 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1472 #ifndef OPENSSL_NO_CT
1473 SCT_LIST_free(s
->scts
);
1474 OPENSSL_free(s
->ext
.scts
);
1476 OPENSSL_free(s
->ext
.ocsp
.resp
);
1477 OPENSSL_free(s
->ext
.alpn
);
1478 OPENSSL_free(s
->ext
.tls13_cookie
);
1479 if (s
->clienthello
!= NULL
)
1480 OPENSSL_free(s
->clienthello
->pre_proc_exts
);
1481 OPENSSL_free(s
->clienthello
);
1482 OPENSSL_free(s
->pha_context
);
1483 EVP_MD_CTX_free(s
->pha_dgst
);
1485 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1486 sk_X509_NAME_pop_free(s
->client_ca_names
, X509_NAME_free
);
1488 OPENSSL_free(s
->client_cert_type
);
1489 OPENSSL_free(s
->server_cert_type
);
1491 OSSL_STACK_OF_X509_free(s
->verified_chain
);
1493 if (ssl
->method
!= NULL
)
1494 ssl
->method
->ssl_deinit(ssl
);
1496 ASYNC_WAIT_CTX_free(s
->waitctx
);
1498 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1499 OPENSSL_free(s
->ext
.npn
);
1502 #ifndef OPENSSL_NO_SRTP
1503 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1507 * We do this late. We want to ensure that any other references we held to
1508 * these BIOs are freed first *before* we call BIO_free_all(), because
1509 * BIO_free_all() will only free each BIO in the chain if the number of
1510 * references to the first BIO have dropped to 0
1512 BIO_free_all(s
->wbio
);
1514 BIO_free_all(s
->rbio
);
1516 OPENSSL_free(s
->s3
.tmp
.valid_flags
);
1519 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1521 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1523 #ifndef OPENSSL_NO_QUIC
1525 ossl_quic_conn_set0_net_rbio(s
, rbio
);
1533 BIO_free_all(sc
->rbio
);
1535 sc
->rlayer
.rrlmethod
->set1_bio(sc
->rlayer
.rrl
, sc
->rbio
);
1538 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1540 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1542 #ifndef OPENSSL_NO_QUIC
1544 ossl_quic_conn_set0_net_wbio(s
, wbio
);
1553 * If the output buffering BIO is still in place, remove it
1555 if (sc
->bbio
!= NULL
)
1556 sc
->wbio
= BIO_pop(sc
->wbio
);
1558 BIO_free_all(sc
->wbio
);
1561 /* Re-attach |bbio| to the new |wbio|. */
1562 if (sc
->bbio
!= NULL
)
1563 sc
->wbio
= BIO_push(sc
->bbio
, sc
->wbio
);
1565 sc
->rlayer
.wrlmethod
->set1_bio(sc
->rlayer
.wrl
, sc
->wbio
);
1568 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1571 * For historical reasons, this function has many different cases in
1572 * ownership handling.
1575 /* If nothing has changed, do nothing */
1576 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1580 * If the two arguments are equal then one fewer reference is granted by the
1581 * caller than we want to take
1583 if (rbio
!= NULL
&& rbio
== wbio
)
1587 * If only the wbio is changed only adopt one reference.
1589 if (rbio
== SSL_get_rbio(s
)) {
1590 SSL_set0_wbio(s
, wbio
);
1594 * There is an asymmetry here for historical reasons. If only the rbio is
1595 * changed AND the rbio and wbio were originally different, then we only
1596 * adopt one reference.
1598 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1599 SSL_set0_rbio(s
, rbio
);
1603 /* Otherwise, adopt both references. */
1604 SSL_set0_rbio(s
, rbio
);
1605 SSL_set0_wbio(s
, wbio
);
1608 BIO
*SSL_get_rbio(const SSL
*s
)
1610 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1612 #ifndef OPENSSL_NO_QUIC
1614 return ossl_quic_conn_get_net_rbio(s
);
1623 BIO
*SSL_get_wbio(const SSL
*s
)
1625 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1627 #ifndef OPENSSL_NO_QUIC
1629 return ossl_quic_conn_get_net_wbio(s
);
1635 if (sc
->bbio
!= NULL
) {
1637 * If |bbio| is active, the true caller-configured BIO is its
1640 return BIO_next(sc
->bbio
);
1645 int SSL_get_fd(const SSL
*s
)
1647 return SSL_get_rfd(s
);
1650 int SSL_get_rfd(const SSL
*s
)
1655 b
= SSL_get_rbio(s
);
1656 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1658 BIO_get_fd(r
, &ret
);
1662 int SSL_get_wfd(const SSL
*s
)
1667 b
= SSL_get_wbio(s
);
1668 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1670 BIO_get_fd(r
, &ret
);
1674 #ifndef OPENSSL_NO_SOCK
1675 int SSL_set_fd(SSL
*s
, int fd
)
1680 bio
= BIO_new(IS_QUIC_SSL(s
) ? BIO_s_datagram() : BIO_s_socket());
1683 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1686 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1687 SSL_set_bio(s
, bio
, bio
);
1688 #ifndef OPENSSL_NO_KTLS
1690 * The new socket is created successfully regardless of ktls_enable.
1691 * ktls_enable doesn't change any functionality of the socket, except
1692 * changing the setsockopt to enable the processing of ktls_start.
1693 * Thus, it is not a problem to call it for non-TLS sockets.
1696 #endif /* OPENSSL_NO_KTLS */
1702 int SSL_set_wfd(SSL
*s
, int fd
)
1704 BIO
*rbio
= SSL_get_rbio(s
);
1705 int desired_type
= IS_QUIC_SSL(s
) ? BIO_TYPE_DGRAM
: BIO_TYPE_SOCKET
;
1707 if (rbio
== NULL
|| BIO_method_type(rbio
) != desired_type
1708 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1709 BIO
*bio
= BIO_new(IS_QUIC_SSL(s
) ? BIO_s_datagram() : BIO_s_socket());
1712 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1715 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1716 SSL_set0_wbio(s
, bio
);
1717 #ifndef OPENSSL_NO_KTLS
1719 * The new socket is created successfully regardless of ktls_enable.
1720 * ktls_enable doesn't change any functionality of the socket, except
1721 * changing the setsockopt to enable the processing of ktls_start.
1722 * Thus, it is not a problem to call it for non-TLS sockets.
1725 #endif /* OPENSSL_NO_KTLS */
1728 SSL_set0_wbio(s
, rbio
);
1733 int SSL_set_rfd(SSL
*s
, int fd
)
1735 BIO
*wbio
= SSL_get_wbio(s
);
1736 int desired_type
= IS_QUIC_SSL(s
) ? BIO_TYPE_DGRAM
: BIO_TYPE_SOCKET
;
1738 if (wbio
== NULL
|| BIO_method_type(wbio
) != desired_type
1739 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1740 BIO
*bio
= BIO_new(IS_QUIC_SSL(s
) ? BIO_s_datagram() : BIO_s_socket());
1743 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1746 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1747 SSL_set0_rbio(s
, bio
);
1750 SSL_set0_rbio(s
, wbio
);
1757 /* return length of latest Finished message we sent, copy to 'buf' */
1758 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1761 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1766 ret
= sc
->s3
.tmp
.finish_md_len
;
1769 memcpy(buf
, sc
->s3
.tmp
.finish_md
, count
);
1773 /* return length of latest Finished message we expected, copy to 'buf' */
1774 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1777 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1782 ret
= sc
->s3
.tmp
.peer_finish_md_len
;
1785 memcpy(buf
, sc
->s3
.tmp
.peer_finish_md
, count
);
1789 int SSL_get_verify_mode(const SSL
*s
)
1791 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1796 return sc
->verify_mode
;
1799 int SSL_get_verify_depth(const SSL
*s
)
1801 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1806 return X509_VERIFY_PARAM_get_depth(sc
->param
);
1809 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1810 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1815 return sc
->verify_callback
;
1818 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1820 return ctx
->verify_mode
;
1823 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1825 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1828 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1829 return ctx
->default_verify_callback
;
1832 void SSL_set_verify(SSL
*s
, int mode
,
1833 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1835 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1840 sc
->verify_mode
= mode
;
1841 if (callback
!= NULL
)
1842 sc
->verify_callback
= callback
;
1845 void SSL_set_verify_depth(SSL
*s
, int depth
)
1847 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1852 X509_VERIFY_PARAM_set_depth(sc
->param
, depth
);
1855 void SSL_set_read_ahead(SSL
*s
, int yes
)
1857 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1858 OSSL_PARAM options
[2], *opts
= options
;
1860 if (sc
== NULL
|| IS_QUIC_SSL(s
))
1863 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, yes
);
1865 *opts
++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD
,
1866 &sc
->rlayer
.read_ahead
);
1867 *opts
= OSSL_PARAM_construct_end();
1869 /* Ignore return value */
1870 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
1873 int SSL_get_read_ahead(const SSL
*s
)
1875 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1877 if (sc
== NULL
|| IS_QUIC_SSL(s
))
1880 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
1883 int SSL_pending(const SSL
*s
)
1885 size_t pending
= s
->method
->ssl_pending(s
);
1888 * SSL_pending cannot work properly if read-ahead is enabled
1889 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1890 * impossible to fix since SSL_pending cannot report errors that may be
1891 * observed while scanning the new data. (Note that SSL_pending() is
1892 * often used as a boolean value, so we'd better not return -1.)
1894 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1895 * we just return INT_MAX.
1897 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1900 int SSL_has_pending(const SSL
*s
)
1902 #ifndef OPENSSL_NO_QUIC
1903 const QUIC_CONNECTION
*qc
= QUIC_CONNECTION_FROM_SSL(s
);
1907 * Similar to SSL_pending() but returns a 1 to indicate that we have
1908 * processed or unprocessed data available or 0 otherwise (as opposed to the
1909 * number of bytes available). Unlike SSL_pending() this will take into
1910 * account read_ahead data. A 1 return simply indicates that we have data.
1911 * That data may not result in any application data, or we may fail to parse
1912 * the records for some reason.
1914 const SSL_CONNECTION
*sc
;
1916 #ifndef OPENSSL_NO_QUIC
1918 return ossl_quic_has_pending(s
);
1921 sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1923 #ifndef OPENSSL_NO_QUIC
1925 return ossl_quic_has_pending(qc
);
1928 /* Check buffered app data if any first */
1929 if (SSL_CONNECTION_IS_DTLS(sc
)) {
1933 iter
= pqueue_iterator(sc
->rlayer
.d
->buffered_app_data
.q
);
1934 while ((item
= pqueue_next(&iter
)) != NULL
) {
1936 if (rdata
->length
> 0)
1941 if (RECORD_LAYER_processed_read_pending(&sc
->rlayer
))
1944 return RECORD_LAYER_read_pending(&sc
->rlayer
);
1947 X509
*SSL_get1_peer_certificate(const SSL
*s
)
1949 X509
*r
= SSL_get0_peer_certificate(s
);
1957 X509
*SSL_get0_peer_certificate(const SSL
*s
)
1959 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1964 if (sc
->session
== NULL
)
1967 return sc
->session
->peer
;
1970 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1973 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1978 if (sc
->session
== NULL
)
1981 r
= sc
->session
->peer_chain
;
1984 * If we are a client, cert_chain includes the peer's own certificate; if
1985 * we are a server, it does not.
1992 * Now in theory, since the calling process own 't' it should be safe to
1993 * modify. We need to be able to read f without being hassled
1995 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1998 /* TODO(QUIC): Not allowed for QUIC currently. */
1999 SSL_CONNECTION
*tsc
= SSL_CONNECTION_FROM_SSL_ONLY(t
);
2000 const SSL_CONNECTION
*fsc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(f
);
2002 if (tsc
== NULL
|| fsc
== NULL
)
2005 /* Do we need to do SSL locking? */
2006 if (!SSL_set_session(t
, SSL_get_session(f
))) {
2011 * what if we are setup for one protocol version but want to talk another
2013 if (t
->method
!= f
->method
) {
2014 t
->method
->ssl_deinit(t
);
2015 t
->method
= f
->method
;
2016 if (t
->method
->ssl_init(t
) == 0)
2020 CRYPTO_UP_REF(&fsc
->cert
->references
, &i
);
2021 ssl_cert_free(tsc
->cert
);
2022 tsc
->cert
= fsc
->cert
;
2023 if (!SSL_set_session_id_context(t
, fsc
->sid_ctx
, (int)fsc
->sid_ctx_length
)) {
2030 /* Fix this so it checks all the valid key/cert options */
2031 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
2033 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
2034 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
2037 if (ctx
->cert
->key
->privatekey
== NULL
) {
2038 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
2041 return X509_check_private_key
2042 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
2045 /* Fix this function so that it takes an optional type parameter */
2046 int SSL_check_private_key(const SSL
*ssl
)
2048 const SSL_CONNECTION
*sc
;
2050 if ((sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
)) == NULL
) {
2051 ERR_raise(ERR_LIB_SSL
, ERR_R_PASSED_NULL_PARAMETER
);
2054 if (sc
->cert
->key
->x509
== NULL
) {
2055 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
2058 if (sc
->cert
->key
->privatekey
== NULL
) {
2059 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
2062 return X509_check_private_key(sc
->cert
->key
->x509
,
2063 sc
->cert
->key
->privatekey
);
2066 int SSL_waiting_for_async(SSL
*s
)
2068 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2079 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
2081 ASYNC_WAIT_CTX
*ctx
;
2082 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2087 if ((ctx
= sc
->waitctx
) == NULL
)
2089 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
2092 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
2093 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
2095 ASYNC_WAIT_CTX
*ctx
;
2096 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2101 if ((ctx
= sc
->waitctx
) == NULL
)
2103 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
2107 int SSL_CTX_set_async_callback(SSL_CTX
*ctx
, SSL_async_callback_fn callback
)
2109 ctx
->async_cb
= callback
;
2113 int SSL_CTX_set_async_callback_arg(SSL_CTX
*ctx
, void *arg
)
2115 ctx
->async_cb_arg
= arg
;
2119 int SSL_set_async_callback(SSL
*s
, SSL_async_callback_fn callback
)
2121 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2126 sc
->async_cb
= callback
;
2130 int SSL_set_async_callback_arg(SSL
*s
, void *arg
)
2132 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2137 sc
->async_cb_arg
= arg
;
2141 int SSL_get_async_status(SSL
*s
, int *status
)
2143 ASYNC_WAIT_CTX
*ctx
;
2144 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2149 if ((ctx
= sc
->waitctx
) == NULL
)
2151 *status
= ASYNC_WAIT_CTX_get_status(ctx
);
2155 int SSL_accept(SSL
*s
)
2157 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2159 #ifndef OPENSSL_NO_QUIC
2161 return s
->method
->ssl_accept(s
);
2167 if (sc
->handshake_func
== NULL
) {
2168 /* Not properly initialized yet */
2169 SSL_set_accept_state(s
);
2172 return SSL_do_handshake(s
);
2175 int SSL_connect(SSL
*s
)
2177 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2179 #ifndef OPENSSL_NO_QUIC
2181 return s
->method
->ssl_connect(s
);
2187 if (sc
->handshake_func
== NULL
) {
2188 /* Not properly initialized yet */
2189 SSL_set_connect_state(s
);
2192 return SSL_do_handshake(s
);
2195 long SSL_get_default_timeout(const SSL
*s
)
2197 return (long int)ossl_time2seconds(s
->method
->get_timeout());
2200 static int ssl_async_wait_ctx_cb(void *arg
)
2202 SSL
*s
= (SSL
*)arg
;
2203 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2208 return sc
->async_cb(s
, sc
->async_cb_arg
);
2211 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
2212 int (*func
) (void *))
2215 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2220 if (sc
->waitctx
== NULL
) {
2221 sc
->waitctx
= ASYNC_WAIT_CTX_new();
2222 if (sc
->waitctx
== NULL
)
2224 if (sc
->async_cb
!= NULL
2225 && !ASYNC_WAIT_CTX_set_callback
2226 (sc
->waitctx
, ssl_async_wait_ctx_cb
, s
))
2230 sc
->rwstate
= SSL_NOTHING
;
2231 switch (ASYNC_start_job(&sc
->job
, sc
->waitctx
, &ret
, func
, args
,
2232 sizeof(struct ssl_async_args
))) {
2234 sc
->rwstate
= SSL_NOTHING
;
2235 ERR_raise(ERR_LIB_SSL
, SSL_R_FAILED_TO_INIT_ASYNC
);
2238 sc
->rwstate
= SSL_ASYNC_PAUSED
;
2241 sc
->rwstate
= SSL_ASYNC_NO_JOBS
;
2247 sc
->rwstate
= SSL_NOTHING
;
2248 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
2249 /* Shouldn't happen */
2254 static int ssl_io_intern(void *vargs
)
2256 struct ssl_async_args
*args
;
2262 args
= (struct ssl_async_args
*)vargs
;
2266 if ((sc
= SSL_CONNECTION_FROM_SSL(s
)) == NULL
)
2269 switch (args
->type
) {
2271 return args
->f
.func_read(s
, buf
, num
, &sc
->asyncrw
);
2273 return args
->f
.func_write(s
, buf
, num
, &sc
->asyncrw
);
2275 return args
->f
.func_other(s
);
2280 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2282 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2284 #ifndef OPENSSL_NO_QUIC
2286 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
2292 if (sc
->handshake_func
== NULL
) {
2293 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2297 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2298 sc
->rwstate
= SSL_NOTHING
;
2302 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2303 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
2304 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2308 * If we are a client and haven't received the ServerHello etc then we
2311 ossl_statem_check_finish_init(sc
, 0);
2313 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2314 struct ssl_async_args args
;
2320 args
.type
= READFUNC
;
2321 args
.f
.func_read
= s
->method
->ssl_read
;
2323 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2324 *readbytes
= sc
->asyncrw
;
2327 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
2331 int SSL_read(SSL
*s
, void *buf
, int num
)
2337 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2341 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
2344 * The cast is safe here because ret should be <= INT_MAX because num is
2348 ret
= (int)readbytes
;
2353 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2355 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
2362 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2365 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2371 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2372 return SSL_READ_EARLY_DATA_ERROR
;
2375 switch (sc
->early_data_state
) {
2376 case SSL_EARLY_DATA_NONE
:
2377 if (!SSL_in_before(s
)) {
2378 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2379 return SSL_READ_EARLY_DATA_ERROR
;
2383 case SSL_EARLY_DATA_ACCEPT_RETRY
:
2384 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
2385 ret
= SSL_accept(s
);
2388 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
2389 return SSL_READ_EARLY_DATA_ERROR
;
2393 case SSL_EARLY_DATA_READ_RETRY
:
2394 if (sc
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
2395 sc
->early_data_state
= SSL_EARLY_DATA_READING
;
2396 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
2398 * State machine will update early_data_state to
2399 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2402 if (ret
> 0 || (ret
<= 0 && sc
->early_data_state
2403 != SSL_EARLY_DATA_FINISHED_READING
)) {
2404 sc
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
2405 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
2406 : SSL_READ_EARLY_DATA_ERROR
;
2409 sc
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
2412 return SSL_READ_EARLY_DATA_FINISH
;
2415 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2416 return SSL_READ_EARLY_DATA_ERROR
;
2420 int SSL_get_early_data_status(const SSL
*s
)
2422 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
2427 return sc
->ext
.early_data
;
2430 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2432 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2434 #ifndef OPENSSL_NO_QUIC
2436 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
2442 if (sc
->handshake_func
== NULL
) {
2443 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2447 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2450 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2451 struct ssl_async_args args
;
2457 args
.type
= READFUNC
;
2458 args
.f
.func_read
= s
->method
->ssl_peek
;
2460 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2461 *readbytes
= sc
->asyncrw
;
2464 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
2468 int SSL_peek(SSL
*s
, void *buf
, int num
)
2474 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2478 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
2481 * The cast is safe here because ret should be <= INT_MAX because num is
2485 ret
= (int)readbytes
;
2491 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2493 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
2500 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2502 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2504 #ifndef OPENSSL_NO_QUIC
2506 return s
->method
->ssl_write(s
, buf
, num
, written
);
2512 if (sc
->handshake_func
== NULL
) {
2513 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2517 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2518 sc
->rwstate
= SSL_NOTHING
;
2519 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2523 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2524 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
2525 || sc
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
2526 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2529 /* If we are a client and haven't sent the Finished we better do that */
2530 ossl_statem_check_finish_init(sc
, 1);
2532 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2534 struct ssl_async_args args
;
2537 args
.buf
= (void *)buf
;
2539 args
.type
= WRITEFUNC
;
2540 args
.f
.func_write
= s
->method
->ssl_write
;
2542 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2543 *written
= sc
->asyncrw
;
2546 return s
->method
->ssl_write(s
, buf
, num
, written
);
2550 ossl_ssize_t
SSL_sendfile(SSL
*s
, int fd
, off_t offset
, size_t size
, int flags
)
2553 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2558 if (sc
->handshake_func
== NULL
) {
2559 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2563 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2564 sc
->rwstate
= SSL_NOTHING
;
2565 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2569 if (!BIO_get_ktls_send(sc
->wbio
)) {
2570 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2574 /* If we have an alert to send, lets send it */
2575 if (sc
->s3
.alert_dispatch
> 0) {
2576 ret
= (ossl_ssize_t
)s
->method
->ssl_dispatch_alert(s
);
2578 /* SSLfatal() already called if appropriate */
2581 /* if it went, fall through and send more stuff */
2584 sc
->rwstate
= SSL_WRITING
;
2585 if (BIO_flush(sc
->wbio
) <= 0) {
2586 if (!BIO_should_retry(sc
->wbio
)) {
2587 sc
->rwstate
= SSL_NOTHING
;
2590 set_sys_error(EAGAIN
);
2596 #ifdef OPENSSL_NO_KTLS
2597 ERR_raise_data(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
,
2598 "can't call ktls_sendfile(), ktls disabled");
2601 ret
= ktls_sendfile(SSL_get_wfd(s
), fd
, offset
, size
, flags
);
2603 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2604 if ((get_last_sys_error() == EAGAIN
) ||
2605 (get_last_sys_error() == EINTR
) ||
2606 (get_last_sys_error() == EBUSY
))
2607 BIO_set_retry_write(sc
->wbio
);
2610 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2613 sc
->rwstate
= SSL_NOTHING
;
2618 int SSL_write(SSL
*s
, const void *buf
, int num
)
2624 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2628 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
2631 * The cast is safe here because ret should be <= INT_MAX because num is
2640 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2642 int ret
= ssl_write_internal(s
, buf
, num
, written
);
2649 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2651 int ret
, early_data_state
;
2653 uint32_t partialwrite
;
2654 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2656 /* TODO(QUIC): This will need special handling for QUIC */
2660 switch (sc
->early_data_state
) {
2661 case SSL_EARLY_DATA_NONE
:
2663 || !SSL_in_before(s
)
2664 || ((sc
->session
== NULL
|| sc
->session
->ext
.max_early_data
== 0)
2665 && (sc
->psk_use_session_cb
== NULL
))) {
2666 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2671 case SSL_EARLY_DATA_CONNECT_RETRY
:
2672 sc
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2673 ret
= SSL_connect(s
);
2676 sc
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2681 case SSL_EARLY_DATA_WRITE_RETRY
:
2682 sc
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2684 * We disable partial write for early data because we don't keep track
2685 * of how many bytes we've written between the SSL_write_ex() call and
2686 * the flush if the flush needs to be retried)
2688 partialwrite
= sc
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2689 sc
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2690 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2691 sc
->mode
|= partialwrite
;
2693 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2696 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2699 case SSL_EARLY_DATA_WRITE_FLUSH
:
2700 /* The buffering BIO is still in place so we need to flush it */
2701 if (statem_flush(sc
) != 1)
2704 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2707 case SSL_EARLY_DATA_FINISHED_READING
:
2708 case SSL_EARLY_DATA_READ_RETRY
:
2709 early_data_state
= sc
->early_data_state
;
2710 /* We are a server writing to an unauthenticated client */
2711 sc
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2712 ret
= SSL_write_ex(s
, buf
, num
, written
);
2713 /* The buffering BIO is still in place */
2715 (void)BIO_flush(sc
->wbio
);
2716 sc
->early_data_state
= early_data_state
;
2720 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2725 int SSL_shutdown(SSL
*s
)
2728 * Note that this function behaves differently from what one might
2729 * expect. Return values are 0 for no success (yet), 1 for success; but
2730 * calling it once is usually not enough, even if blocking I/O is used
2731 * (see ssl3_shutdown).
2733 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2735 #ifndef OPENSSL_NO_QUIC
2737 return ossl_quic_conn_shutdown(s
, 0, NULL
, 0);
2743 if (sc
->handshake_func
== NULL
) {
2744 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2748 if (!SSL_in_init(s
)) {
2749 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2750 struct ssl_async_args args
;
2752 memset(&args
, 0, sizeof(args
));
2754 args
.type
= OTHERFUNC
;
2755 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2757 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2759 return s
->method
->ssl_shutdown(s
);
2762 ERR_raise(ERR_LIB_SSL
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2767 int SSL_key_update(SSL
*s
, int updatetype
)
2769 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2771 #ifndef OPENSSL_NO_QUIC
2773 return ossl_quic_key_update(s
, updatetype
);
2779 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
2780 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2784 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2785 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2786 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2790 if (!SSL_is_init_finished(s
)) {
2791 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
2795 if (RECORD_LAYER_write_pending(&sc
->rlayer
)) {
2796 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_WRITE_RETRY
);
2800 ossl_statem_set_in_init(sc
, 1);
2801 sc
->key_update
= updatetype
;
2805 int SSL_get_key_update_type(const SSL
*s
)
2807 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
2809 #ifndef OPENSSL_NO_QUIC
2811 return ossl_quic_get_key_update_type(s
);
2817 return sc
->key_update
;
2821 * Can we accept a renegotiation request? If yes, set the flag and
2822 * return 1 if yes. If not, raise error and return 0.
2824 static int can_renegotiate(const SSL_CONNECTION
*sc
)
2826 if (SSL_CONNECTION_IS_TLS13(sc
)) {
2827 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2831 if ((sc
->options
& SSL_OP_NO_RENEGOTIATION
) != 0) {
2832 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_RENEGOTIATION
);
2839 int SSL_renegotiate(SSL
*s
)
2841 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2846 if (!can_renegotiate(sc
))
2849 sc
->renegotiate
= 1;
2850 sc
->new_session
= 1;
2851 return s
->method
->ssl_renegotiate(s
);
2854 int SSL_renegotiate_abbreviated(SSL
*s
)
2856 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2861 if (!can_renegotiate(sc
))
2864 sc
->renegotiate
= 1;
2865 sc
->new_session
= 0;
2866 return s
->method
->ssl_renegotiate(s
);
2869 int SSL_renegotiate_pending(const SSL
*s
)
2871 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2877 * becomes true when negotiation is requested; false again once a
2878 * handshake has finished
2880 return (sc
->renegotiate
!= 0);
2883 int SSL_new_session_ticket(SSL
*s
)
2885 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2890 /* If we are in init because we're sending tickets, okay to send more. */
2891 if ((SSL_in_init(s
) && sc
->ext
.extra_tickets_expected
== 0)
2892 || SSL_IS_FIRST_HANDSHAKE(sc
) || !sc
->server
2893 || !SSL_CONNECTION_IS_TLS13(sc
))
2895 sc
->ext
.extra_tickets_expected
++;
2896 if (!RECORD_LAYER_write_pending(&sc
->rlayer
) && !SSL_in_init(s
))
2897 ossl_statem_set_in_init(sc
, 1);
2901 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2904 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2906 /* TODO(QUIC): Special handling for some ctrls will be needed */
2911 case SSL_CTRL_GET_READ_AHEAD
:
2914 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2915 case SSL_CTRL_SET_READ_AHEAD
:
2918 l
= RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2919 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, larg
);
2924 OSSL_PARAM options
[2], *opts
= options
;
2928 *opts
++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE
,
2930 *opts
= OSSL_PARAM_construct_end();
2932 /* Ignore return value */
2933 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
2937 case SSL_CTRL_CLEAR_MODE
:
2938 return (sc
->mode
&= ~larg
);
2939 case SSL_CTRL_GET_MAX_CERT_LIST
:
2940 return (long)sc
->max_cert_list
;
2941 case SSL_CTRL_SET_MAX_CERT_LIST
:
2944 l
= (long)sc
->max_cert_list
;
2945 sc
->max_cert_list
= (size_t)larg
;
2947 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2948 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
|| IS_QUIC_SSL(s
))
2950 #ifndef OPENSSL_NO_KTLS
2951 if (sc
->wbio
!= NULL
&& BIO_get_ktls_send(sc
->wbio
))
2953 #endif /* OPENSSL_NO_KTLS */
2954 sc
->max_send_fragment
= larg
;
2955 if (sc
->max_send_fragment
< sc
->split_send_fragment
)
2956 sc
->split_send_fragment
= sc
->max_send_fragment
;
2957 sc
->rlayer
.wrlmethod
->set_max_frag_len(sc
->rlayer
.wrl
, larg
);
2959 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2960 if ((size_t)larg
> sc
->max_send_fragment
|| larg
== 0 || IS_QUIC_SSL(s
))
2962 sc
->split_send_fragment
= larg
;
2964 case SSL_CTRL_SET_MAX_PIPELINES
:
2965 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
|| IS_QUIC_SSL(s
))
2967 sc
->max_pipelines
= larg
;
2968 if (sc
->rlayer
.rrlmethod
->set_max_pipelines
!= NULL
)
2969 sc
->rlayer
.rrlmethod
->set_max_pipelines(sc
->rlayer
.rrl
, (size_t)larg
);
2971 case SSL_CTRL_GET_RI_SUPPORT
:
2972 return sc
->s3
.send_connection_binding
;
2973 case SSL_CTRL_SET_RETRY_VERIFY
:
2974 sc
->rwstate
= SSL_RETRY_VERIFY
;
2976 case SSL_CTRL_CERT_FLAGS
:
2977 return (sc
->cert
->cert_flags
|= larg
);
2978 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2979 return (sc
->cert
->cert_flags
&= ~larg
);
2981 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2983 if (sc
->s3
.tmp
.ciphers_raw
== NULL
)
2985 *(unsigned char **)parg
= sc
->s3
.tmp
.ciphers_raw
;
2986 return (int)sc
->s3
.tmp
.ciphers_rawlen
;
2988 return TLS_CIPHER_LEN
;
2990 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2991 if (!sc
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(sc
))
2993 if (sc
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2997 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2998 return ssl_check_allowed_versions(larg
, sc
->max_proto_version
,
3000 && ssl_set_version_bound(s
->defltmeth
->version
, (int)larg
,
3001 &sc
->min_proto_version
);
3002 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
3003 return sc
->min_proto_version
;
3004 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
3005 if (IS_QUIC_SSL(s
) && larg
< TLS1_3_VERSION
)
3007 return ssl_check_allowed_versions(sc
->min_proto_version
, larg
,
3009 && ssl_set_version_bound(s
->defltmeth
->version
, (int)larg
,
3010 &sc
->max_proto_version
);
3011 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
3012 return sc
->max_proto_version
;
3014 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
3018 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
3020 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
3023 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
3025 return ctx
->sessions
;
3028 static int ssl_tsan_load(SSL_CTX
*ctx
, TSAN_QUALIFIER
int *stat
)
3032 if (ssl_tsan_lock(ctx
)) {
3033 res
= tsan_load(stat
);
3034 ssl_tsan_unlock(ctx
);
3039 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
3042 /* For some cases with ctx == NULL perform syntax checks */
3045 case SSL_CTRL_SET_GROUPS_LIST
:
3046 return tls1_set_groups_list(ctx
, NULL
, NULL
, parg
);
3047 case SSL_CTRL_SET_SIGALGS_LIST
:
3048 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
3049 return tls1_set_sigalgs_list(NULL
, parg
, 0);
3056 case SSL_CTRL_GET_READ_AHEAD
:
3057 return ctx
->read_ahead
;
3058 case SSL_CTRL_SET_READ_AHEAD
:
3059 l
= ctx
->read_ahead
;
3060 ctx
->read_ahead
= larg
;
3063 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
3064 ctx
->msg_callback_arg
= parg
;
3067 case SSL_CTRL_GET_MAX_CERT_LIST
:
3068 return (long)ctx
->max_cert_list
;
3069 case SSL_CTRL_SET_MAX_CERT_LIST
:
3072 l
= (long)ctx
->max_cert_list
;
3073 ctx
->max_cert_list
= (size_t)larg
;
3076 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
3079 l
= (long)ctx
->session_cache_size
;
3080 ctx
->session_cache_size
= (size_t)larg
;
3082 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
3083 return (long)ctx
->session_cache_size
;
3084 case SSL_CTRL_SET_SESS_CACHE_MODE
:
3085 l
= ctx
->session_cache_mode
;
3086 ctx
->session_cache_mode
= larg
;
3088 case SSL_CTRL_GET_SESS_CACHE_MODE
:
3089 return ctx
->session_cache_mode
;
3091 case SSL_CTRL_SESS_NUMBER
:
3092 return lh_SSL_SESSION_num_items(ctx
->sessions
);
3093 case SSL_CTRL_SESS_CONNECT
:
3094 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect
);
3095 case SSL_CTRL_SESS_CONNECT_GOOD
:
3096 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_good
);
3097 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
3098 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_renegotiate
);
3099 case SSL_CTRL_SESS_ACCEPT
:
3100 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept
);
3101 case SSL_CTRL_SESS_ACCEPT_GOOD
:
3102 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_good
);
3103 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
3104 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_renegotiate
);
3105 case SSL_CTRL_SESS_HIT
:
3106 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_hit
);
3107 case SSL_CTRL_SESS_CB_HIT
:
3108 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cb_hit
);
3109 case SSL_CTRL_SESS_MISSES
:
3110 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_miss
);
3111 case SSL_CTRL_SESS_TIMEOUTS
:
3112 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_timeout
);
3113 case SSL_CTRL_SESS_CACHE_FULL
:
3114 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cache_full
);
3116 return (ctx
->mode
|= larg
);
3117 case SSL_CTRL_CLEAR_MODE
:
3118 return (ctx
->mode
&= ~larg
);
3119 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
3120 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
3122 ctx
->max_send_fragment
= larg
;
3123 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
3124 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
3126 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
3127 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
3129 ctx
->split_send_fragment
= larg
;
3131 case SSL_CTRL_SET_MAX_PIPELINES
:
3132 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
3134 ctx
->max_pipelines
= larg
;
3136 case SSL_CTRL_CERT_FLAGS
:
3137 return (ctx
->cert
->cert_flags
|= larg
);
3138 case SSL_CTRL_CLEAR_CERT_FLAGS
:
3139 return (ctx
->cert
->cert_flags
&= ~larg
);
3140 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
3141 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
, 0)
3142 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
3143 &ctx
->min_proto_version
);
3144 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
3145 return ctx
->min_proto_version
;
3146 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
3147 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
, 0)
3148 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
3149 &ctx
->max_proto_version
);
3150 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
3151 return ctx
->max_proto_version
;
3153 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
3157 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
3160 case SSL_CTRL_SET_MSG_CALLBACK
:
3161 ctx
->msg_callback
= (void (*)
3162 (int write_p
, int version
, int content_type
,
3163 const void *buf
, size_t len
, SSL
*ssl
,
3168 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
3172 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
3181 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
3182 const SSL_CIPHER
*const *bp
)
3184 if ((*ap
)->id
> (*bp
)->id
)
3186 if ((*ap
)->id
< (*bp
)->id
)
3192 * return a STACK of the ciphers available for the SSL and in order of
3195 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
3197 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3200 if (sc
->cipher_list
!= NULL
) {
3201 return sc
->cipher_list
;
3202 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
3203 return s
->ctx
->cipher_list
;
3209 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
3211 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3213 if (sc
== NULL
|| !sc
->server
)
3215 return sc
->peer_ciphers
;
3218 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
3220 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
3222 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3227 ciphers
= SSL_get_ciphers(s
);
3230 if (!ssl_set_client_disabled(sc
))
3232 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
3233 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
3234 if (!ssl_cipher_disabled(sc
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
3236 sk
= sk_SSL_CIPHER_new_null();
3239 if (!sk_SSL_CIPHER_push(sk
, c
)) {
3240 sk_SSL_CIPHER_free(sk
);
3248 /** return a STACK of the ciphers available for the SSL and in order of
3250 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL_CONNECTION
*s
)
3253 if (s
->cipher_list_by_id
!= NULL
)
3254 return s
->cipher_list_by_id
;
3255 else if (s
->ssl
.ctx
!= NULL
3256 && s
->ssl
.ctx
->cipher_list_by_id
!= NULL
)
3257 return s
->ssl
.ctx
->cipher_list_by_id
;
3262 /** The old interface to get the same thing as SSL_get_ciphers() */
3263 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
3265 const SSL_CIPHER
*c
;
3266 STACK_OF(SSL_CIPHER
) *sk
;
3270 sk
= SSL_get_ciphers(s
);
3271 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
3273 c
= sk_SSL_CIPHER_value(sk
, n
);
3279 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3281 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
3284 return ctx
->cipher_list
;
3289 * Distinguish between ciphers controlled by set_ciphersuite() and
3290 * set_cipher_list() when counting.
3292 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER
) *sk
)
3295 const SSL_CIPHER
*c
;
3299 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); ++i
) {
3300 c
= sk_SSL_CIPHER_value(sk
, i
);
3301 if (c
->min_tls
>= TLS1_3_VERSION
)
3308 /** specify the ciphers to be used by default by the SSL_CTX */
3309 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
3311 STACK_OF(SSL_CIPHER
) *sk
;
3313 sk
= ssl_create_cipher_list(ctx
, ctx
->tls13_ciphersuites
,
3314 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
3317 * ssl_create_cipher_list may return an empty stack if it was unable to
3318 * find a cipher matching the given rule string (for example if the rule
3319 * string specifies a cipher which has been disabled). This is not an
3320 * error as far as ssl_create_cipher_list is concerned, and hence
3321 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3325 else if (cipher_list_tls12_num(sk
) == 0) {
3326 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3332 /** specify the ciphers to be used by the SSL */
3333 int SSL_set_cipher_list(SSL
*s
, const char *str
)
3335 STACK_OF(SSL_CIPHER
) *sk
;
3336 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3341 sk
= ssl_create_cipher_list(s
->ctx
, sc
->tls13_ciphersuites
,
3342 &sc
->cipher_list
, &sc
->cipher_list_by_id
, str
,
3344 /* see comment in SSL_CTX_set_cipher_list */
3347 else if (cipher_list_tls12_num(sk
) == 0) {
3348 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3354 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
3357 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
3358 const SSL_CIPHER
*c
;
3360 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3366 || sc
->peer_ciphers
== NULL
3371 clntsk
= sc
->peer_ciphers
;
3372 srvrsk
= SSL_get_ciphers(s
);
3373 if (clntsk
== NULL
|| srvrsk
== NULL
)
3376 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
3379 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
3382 c
= sk_SSL_CIPHER_value(clntsk
, i
);
3383 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
3386 n
= strlen(c
->name
);
3403 * Return the requested servername (SNI) value. Note that the behaviour varies
3405 * - whether this is called by the client or the server,
3406 * - if we are before or during/after the handshake,
3407 * - if a resumption or normal handshake is being attempted/has occurred
3408 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3410 * Note that only the host_name type is defined (RFC 3546).
3412 const char *SSL_get_servername(const SSL
*s
, const int type
)
3414 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3421 * If we don't know if we are the client or the server yet then we assume
3424 server
= sc
->handshake_func
== NULL
? 0 : sc
->server
;
3426 if (type
!= TLSEXT_NAMETYPE_host_name
)
3432 * In TLSv1.3 on the server SNI is not associated with the session
3433 * but in TLSv1.2 or below it is.
3435 * Before the handshake:
3438 * During/after the handshake (TLSv1.2 or below resumption occurred):
3439 * - If a servername was accepted by the server in the original
3440 * handshake then it will return that servername, or NULL otherwise.
3442 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3443 * - The function will return the servername requested by the client in
3444 * this handshake or NULL if none was requested.
3446 if (sc
->hit
&& !SSL_CONNECTION_IS_TLS13(sc
))
3447 return sc
->session
->ext
.hostname
;
3452 * Before the handshake:
3453 * - If a servername has been set via a call to
3454 * SSL_set_tlsext_host_name() then it will return that servername
3455 * - If one has not been set, but a TLSv1.2 resumption is being
3456 * attempted and the session from the original handshake had a
3457 * servername accepted by the server then it will return that
3459 * - Otherwise it returns NULL
3461 * During/after the handshake (TLSv1.2 or below resumption occurred):
3462 * - If the session from the original handshake had a servername accepted
3463 * by the server then it will return that servername.
3464 * - Otherwise it returns the servername set via
3465 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3467 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3468 * - It will return the servername set via SSL_set_tlsext_host_name()
3469 * (or NULL if it was not called).
3471 if (SSL_in_before(s
)) {
3472 if (sc
->ext
.hostname
== NULL
3473 && sc
->session
!= NULL
3474 && sc
->session
->ssl_version
!= TLS1_3_VERSION
)
3475 return sc
->session
->ext
.hostname
;
3477 if (!SSL_CONNECTION_IS_TLS13(sc
) && sc
->hit
3478 && sc
->session
->ext
.hostname
!= NULL
)
3479 return sc
->session
->ext
.hostname
;
3483 return sc
->ext
.hostname
;
3486 int SSL_get_servername_type(const SSL
*s
)
3488 if (SSL_get_servername(s
, TLSEXT_NAMETYPE_host_name
) != NULL
)
3489 return TLSEXT_NAMETYPE_host_name
;
3494 * SSL_select_next_proto implements the standard protocol selection. It is
3495 * expected that this function is called from the callback set by
3496 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3497 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3498 * not included in the length. A byte string of length 0 is invalid. No byte
3499 * string may be truncated. The current, but experimental algorithm for
3500 * selecting the protocol is: 1) If the server doesn't support NPN then this
3501 * is indicated to the callback. In this case, the client application has to
3502 * abort the connection or have a default application level protocol. 2) If
3503 * the server supports NPN, but advertises an empty list then the client
3504 * selects the first protocol in its list, but indicates via the API that this
3505 * fallback case was enacted. 3) Otherwise, the client finds the first
3506 * protocol in the server's list that it supports and selects this protocol.
3507 * This is because it's assumed that the server has better information about
3508 * which protocol a client should use. 4) If the client doesn't support any
3509 * of the server's advertised protocols, then this is treated the same as
3510 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3511 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3513 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
3514 const unsigned char *server
,
3515 unsigned int server_len
,
3516 const unsigned char *client
, unsigned int client_len
)
3519 const unsigned char *result
;
3520 int status
= OPENSSL_NPN_UNSUPPORTED
;
3523 * For each protocol in server preference order, see if we support it.
3525 for (i
= 0; i
< server_len
;) {
3526 for (j
= 0; j
< client_len
;) {
3527 if (server
[i
] == client
[j
] &&
3528 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
3529 /* We found a match */
3530 result
= &server
[i
];
3531 status
= OPENSSL_NPN_NEGOTIATED
;
3541 /* There's no overlap between our protocols and the server's list. */
3543 status
= OPENSSL_NPN_NO_OVERLAP
;
3546 *out
= (unsigned char *)result
+ 1;
3547 *outlen
= result
[0];
3551 #ifndef OPENSSL_NO_NEXTPROTONEG
3553 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3554 * client's requested protocol for this connection and returns 0. If the
3555 * client didn't request any protocol, then *data is set to NULL. Note that
3556 * the client can request any protocol it chooses. The value returned from
3557 * this function need not be a member of the list of supported protocols
3558 * provided by the callback.
3560 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
3563 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3566 /* We have no other way to indicate error */
3572 *data
= sc
->ext
.npn
;
3573 if (*data
== NULL
) {
3576 *len
= (unsigned int)sc
->ext
.npn_len
;
3581 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3582 * a TLS server needs a list of supported protocols for Next Protocol
3583 * Negotiation. The returned list must be in wire format. The list is
3584 * returned by setting |out| to point to it and |outlen| to its length. This
3585 * memory will not be modified, but one should assume that the SSL* keeps a
3586 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3587 * wishes to advertise. Otherwise, no such extension will be included in the
3590 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
3591 SSL_CTX_npn_advertised_cb_func cb
,
3594 if (IS_QUIC_CTX(ctx
))
3595 /* NPN not allowed for QUIC */
3598 ctx
->ext
.npn_advertised_cb
= cb
;
3599 ctx
->ext
.npn_advertised_cb_arg
= arg
;
3603 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3604 * client needs to select a protocol from the server's provided list. |out|
3605 * must be set to point to the selected protocol (which may be within |in|).
3606 * The length of the protocol name must be written into |outlen|. The
3607 * server's advertised protocols are provided in |in| and |inlen|. The
3608 * callback can assume that |in| is syntactically valid. The client must
3609 * select a protocol. It is fatal to the connection if this callback returns
3610 * a value other than SSL_TLSEXT_ERR_OK.
3612 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
3613 SSL_CTX_npn_select_cb_func cb
,
3616 if (IS_QUIC_CTX(ctx
))
3617 /* NPN not allowed for QUIC */
3620 ctx
->ext
.npn_select_cb
= cb
;
3621 ctx
->ext
.npn_select_cb_arg
= arg
;
3625 static int alpn_value_ok(const unsigned char *protos
, unsigned int protos_len
)
3629 if (protos_len
< 2 || protos
== NULL
)
3632 for (idx
= 0; idx
< protos_len
; idx
+= protos
[idx
] + 1) {
3633 if (protos
[idx
] == 0)
3636 return idx
== protos_len
;
3639 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3640 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3641 * length-prefixed strings). Returns 0 on success.
3643 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
3644 unsigned int protos_len
)
3646 unsigned char *alpn
;
3648 if (protos_len
== 0 || protos
== NULL
) {
3649 OPENSSL_free(ctx
->ext
.alpn
);
3650 ctx
->ext
.alpn
= NULL
;
3651 ctx
->ext
.alpn_len
= 0;
3654 /* Not valid per RFC */
3655 if (!alpn_value_ok(protos
, protos_len
))
3658 alpn
= OPENSSL_memdup(protos
, protos_len
);
3661 OPENSSL_free(ctx
->ext
.alpn
);
3662 ctx
->ext
.alpn
= alpn
;
3663 ctx
->ext
.alpn_len
= protos_len
;
3669 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3670 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3671 * length-prefixed strings). Returns 0 on success.
3673 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
3674 unsigned int protos_len
)
3676 unsigned char *alpn
;
3677 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
3682 if (protos_len
== 0 || protos
== NULL
) {
3683 OPENSSL_free(sc
->ext
.alpn
);
3684 sc
->ext
.alpn
= NULL
;
3685 sc
->ext
.alpn_len
= 0;
3688 /* Not valid per RFC */
3689 if (!alpn_value_ok(protos
, protos_len
))
3692 alpn
= OPENSSL_memdup(protos
, protos_len
);
3695 OPENSSL_free(sc
->ext
.alpn
);
3696 sc
->ext
.alpn
= alpn
;
3697 sc
->ext
.alpn_len
= protos_len
;
3703 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3704 * called during ClientHello processing in order to select an ALPN protocol
3705 * from the client's list of offered protocols.
3707 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
3708 SSL_CTX_alpn_select_cb_func cb
,
3711 ctx
->ext
.alpn_select_cb
= cb
;
3712 ctx
->ext
.alpn_select_cb_arg
= arg
;
3716 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3717 * On return it sets |*data| to point to |*len| bytes of protocol name
3718 * (not including the leading length-prefix byte). If the server didn't
3719 * respond with a negotiated protocol then |*len| will be zero.
3721 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
3724 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
3727 /* We have no other way to indicate error */
3733 *data
= sc
->s3
.alpn_selected
;
3737 *len
= (unsigned int)sc
->s3
.alpn_selected_len
;
3740 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
3741 const char *label
, size_t llen
,
3742 const unsigned char *context
, size_t contextlen
,
3745 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3750 if (sc
->session
== NULL
3751 || (sc
->version
< TLS1_VERSION
&& sc
->version
!= DTLS1_BAD_VER
))
3754 return s
->method
->ssl3_enc
->export_keying_material(sc
, out
, olen
, label
,
3756 contextlen
, use_context
);
3759 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
3760 const char *label
, size_t llen
,
3761 const unsigned char *context
,
3764 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3769 if (sc
->version
!= TLS1_3_VERSION
)
3772 return tls13_export_keying_material_early(sc
, out
, olen
, label
, llen
,
3773 context
, contextlen
);
3776 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
3778 const unsigned char *session_id
= a
->session_id
;
3780 unsigned char tmp_storage
[4];
3782 if (a
->session_id_length
< sizeof(tmp_storage
)) {
3783 memset(tmp_storage
, 0, sizeof(tmp_storage
));
3784 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
3785 session_id
= tmp_storage
;
3789 ((unsigned long)session_id
[0]) |
3790 ((unsigned long)session_id
[1] << 8L) |
3791 ((unsigned long)session_id
[2] << 16L) |
3792 ((unsigned long)session_id
[3] << 24L);
3797 * NB: If this function (or indeed the hash function which uses a sort of
3798 * coarser function than this one) is changed, ensure
3799 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3800 * being able to construct an SSL_SESSION that will collide with any existing
3801 * session with a matching session ID.
3803 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
3805 if (a
->ssl_version
!= b
->ssl_version
)
3807 if (a
->session_id_length
!= b
->session_id_length
)
3809 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
3813 * These wrapper functions should remain rather than redeclaring
3814 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3815 * variable. The reason is that the functions aren't static, they're exposed
3819 SSL_CTX
*SSL_CTX_new_ex(OSSL_LIB_CTX
*libctx
, const char *propq
,
3820 const SSL_METHOD
*meth
)
3822 SSL_CTX
*ret
= NULL
;
3823 #ifndef OPENSSL_NO_COMP_ALG
3828 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_METHOD_PASSED
);
3832 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
3835 /* Doing this for the run once effect */
3836 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3837 ERR_raise(ERR_LIB_SSL
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
3841 ret
= OPENSSL_zalloc(sizeof(*ret
));
3845 /* Init the reference counting before any call to SSL_CTX_free */
3846 if (!CRYPTO_NEW_REF(&ret
->references
, 1)) {
3851 ret
->lock
= CRYPTO_THREAD_lock_new();
3852 if (ret
->lock
== NULL
) {
3853 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3857 #ifdef TSAN_REQUIRES_LOCKING
3858 ret
->tsan_lock
= CRYPTO_THREAD_lock_new();
3859 if (ret
->tsan_lock
== NULL
) {
3860 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3865 ret
->libctx
= libctx
;
3866 if (propq
!= NULL
) {
3867 ret
->propq
= OPENSSL_strdup(propq
);
3868 if (ret
->propq
== NULL
)
3873 ret
->min_proto_version
= 0;
3874 ret
->max_proto_version
= 0;
3875 ret
->mode
= SSL_MODE_AUTO_RETRY
;
3876 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
3877 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
3878 /* We take the system default. */
3879 ret
->session_timeout
= meth
->get_timeout();
3880 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3881 ret
->verify_mode
= SSL_VERIFY_NONE
;
3883 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3884 if (ret
->sessions
== NULL
) {
3885 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3888 ret
->cert_store
= X509_STORE_new();
3889 if (ret
->cert_store
== NULL
) {
3890 ERR_raise(ERR_LIB_SSL
, ERR_R_X509_LIB
);
3893 #ifndef OPENSSL_NO_CT
3894 ret
->ctlog_store
= CTLOG_STORE_new_ex(libctx
, propq
);
3895 if (ret
->ctlog_store
== NULL
) {
3896 ERR_raise(ERR_LIB_SSL
, ERR_R_CT_LIB
);
3901 /* initialize cipher/digest methods table */
3902 if (!ssl_load_ciphers(ret
)) {
3903 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3907 if (!ssl_load_groups(ret
)) {
3908 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3912 /* load provider sigalgs */
3913 if (!ssl_load_sigalgs(ret
)) {
3914 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3918 /* initialise sig algs */
3919 if (!ssl_setup_sigalgs(ret
)) {
3920 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3924 if (!SSL_CTX_set_ciphersuites(ret
, OSSL_default_ciphersuites())) {
3925 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3929 if ((ret
->cert
= ssl_cert_new(SSL_PKEY_NUM
+ ret
->sigalg_list_len
)) == NULL
) {
3930 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3934 if (!ssl_create_cipher_list(ret
,
3935 ret
->tls13_ciphersuites
,
3936 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3937 OSSL_default_cipher_list(), ret
->cert
)
3938 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3939 ERR_raise(ERR_LIB_SSL
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3943 ret
->param
= X509_VERIFY_PARAM_new();
3944 if (ret
->param
== NULL
) {
3945 ERR_raise(ERR_LIB_SSL
, ERR_R_X509_LIB
);
3950 * If these aren't available from the provider we'll get NULL returns.
3951 * That's fine but will cause errors later if SSLv3 is negotiated
3953 ret
->md5
= ssl_evp_md_fetch(libctx
, NID_md5
, propq
);
3954 ret
->sha1
= ssl_evp_md_fetch(libctx
, NID_sha1
, propq
);
3956 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
) {
3957 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3961 if ((ret
->client_ca_names
= sk_X509_NAME_new_null()) == NULL
) {
3962 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3966 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
)) {
3967 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3971 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
3974 /* No compression for DTLS */
3975 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3976 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3978 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3979 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3981 /* Setup RFC5077 ticket keys */
3982 if ((RAND_bytes_ex(libctx
, ret
->ext
.tick_key_name
,
3983 sizeof(ret
->ext
.tick_key_name
), 0) <= 0)
3984 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_hmac_key
,
3985 sizeof(ret
->ext
.secure
->tick_hmac_key
), 0) <= 0)
3986 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_aes_key
,
3987 sizeof(ret
->ext
.secure
->tick_aes_key
), 0) <= 0))
3988 ret
->options
|= SSL_OP_NO_TICKET
;
3990 if (RAND_priv_bytes_ex(libctx
, ret
->ext
.cookie_hmac_key
,
3991 sizeof(ret
->ext
.cookie_hmac_key
), 0) <= 0) {
3992 ERR_raise(ERR_LIB_SSL
, ERR_R_RAND_LIB
);
3996 #ifndef OPENSSL_NO_SRP
3997 if (!ssl_ctx_srp_ctx_init_intern(ret
)) {
3998 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
4002 #ifndef OPENSSL_NO_ENGINE
4003 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
4004 # define eng_strx(x) #x
4005 # define eng_str(x) eng_strx(x)
4006 /* Use specific client engine automatically... ignore errors */
4009 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
4012 ENGINE_load_builtin_engines();
4013 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
4015 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
4021 #ifndef OPENSSL_NO_COMP_ALG
4023 * Set the default order: brotli, zlib, zstd
4024 * Including only those enabled algorithms
4026 memset(ret
->cert_comp_prefs
, 0, sizeof(ret
->cert_comp_prefs
));
4028 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli
))
4029 ret
->cert_comp_prefs
[i
++] = TLSEXT_comp_cert_brotli
;
4030 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib
))
4031 ret
->cert_comp_prefs
[i
++] = TLSEXT_comp_cert_zlib
;
4032 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd
))
4033 ret
->cert_comp_prefs
[i
++] = TLSEXT_comp_cert_zstd
;
4036 * Disable compression by default to prevent CRIME. Applications can
4037 * re-enable compression by configuring
4038 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
4039 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
4040 * middlebox compatibility by default. This may be disabled by default in
4041 * a later OpenSSL version.
4043 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
4045 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
4048 * We cannot usefully set a default max_early_data here (which gets
4049 * propagated in SSL_new(), for the following reason: setting the
4050 * SSL field causes tls_construct_stoc_early_data() to tell the
4051 * client that early data will be accepted when constructing a TLS 1.3
4052 * session ticket, and the client will accordingly send us early data
4053 * when using that ticket (if the client has early data to send).
4054 * However, in order for the early data to actually be consumed by
4055 * the application, the application must also have calls to
4056 * SSL_read_early_data(); otherwise we'll just skip past the early data
4057 * and ignore it. So, since the application must add calls to
4058 * SSL_read_early_data(), we also require them to add
4059 * calls to SSL_CTX_set_max_early_data() in order to use early data,
4060 * eliminating the bandwidth-wasting early data in the case described
4063 ret
->max_early_data
= 0;
4066 * Default recv_max_early_data is a fully loaded single record. Could be
4067 * split across multiple records in practice. We set this differently to
4068 * max_early_data so that, in the default case, we do not advertise any
4069 * support for early_data, but if a client were to send us some (e.g.
4070 * because of an old, stale ticket) then we will tolerate it and skip over
4073 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
4075 /* By default we send two session tickets automatically in TLSv1.3 */
4076 ret
->num_tickets
= 2;
4078 ssl_ctx_system_config(ret
);
4086 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
4088 return SSL_CTX_new_ex(NULL
, NULL
, meth
);
4091 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
4095 if (CRYPTO_UP_REF(&ctx
->references
, &i
) <= 0)
4098 REF_PRINT_COUNT("SSL_CTX", ctx
);
4099 REF_ASSERT_ISNT(i
< 2);
4100 return ((i
> 1) ? 1 : 0);
4103 void SSL_CTX_free(SSL_CTX
*a
)
4111 CRYPTO_DOWN_REF(&a
->references
, &i
);
4112 REF_PRINT_COUNT("SSL_CTX", a
);
4115 REF_ASSERT_ISNT(i
< 0);
4117 X509_VERIFY_PARAM_free(a
->param
);
4118 dane_ctx_final(&a
->dane
);
4121 * Free internal session cache. However: the remove_cb() may reference
4122 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
4123 * after the sessions were flushed.
4124 * As the ex_data handling routines might also touch the session cache,
4125 * the most secure solution seems to be: empty (flush) the cache, then
4126 * free ex_data, then finally free the cache.
4127 * (See ticket [openssl.org #212].)
4129 if (a
->sessions
!= NULL
)
4130 SSL_CTX_flush_sessions(a
, 0);
4132 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
4133 lh_SSL_SESSION_free(a
->sessions
);
4134 X509_STORE_free(a
->cert_store
);
4135 #ifndef OPENSSL_NO_CT
4136 CTLOG_STORE_free(a
->ctlog_store
);
4138 sk_SSL_CIPHER_free(a
->cipher_list
);
4139 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
4140 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
4141 ssl_cert_free(a
->cert
);
4142 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
4143 sk_X509_NAME_pop_free(a
->client_ca_names
, X509_NAME_free
);
4144 OSSL_STACK_OF_X509_free(a
->extra_certs
);
4145 a
->comp_methods
= NULL
;
4146 #ifndef OPENSSL_NO_SRTP
4147 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
4149 #ifndef OPENSSL_NO_SRP
4150 ssl_ctx_srp_ctx_free_intern(a
);
4152 #ifndef OPENSSL_NO_ENGINE
4153 tls_engine_finish(a
->client_cert_engine
);
4156 OPENSSL_free(a
->ext
.ecpointformats
);
4157 OPENSSL_free(a
->ext
.supportedgroups
);
4158 OPENSSL_free(a
->ext
.supported_groups_default
);
4159 OPENSSL_free(a
->ext
.alpn
);
4160 OPENSSL_secure_free(a
->ext
.secure
);
4162 ssl_evp_md_free(a
->md5
);
4163 ssl_evp_md_free(a
->sha1
);
4165 for (j
= 0; j
< SSL_ENC_NUM_IDX
; j
++)
4166 ssl_evp_cipher_free(a
->ssl_cipher_methods
[j
]);
4167 for (j
= 0; j
< SSL_MD_NUM_IDX
; j
++)
4168 ssl_evp_md_free(a
->ssl_digest_methods
[j
]);
4169 for (j
= 0; j
< a
->group_list_len
; j
++) {
4170 OPENSSL_free(a
->group_list
[j
].tlsname
);
4171 OPENSSL_free(a
->group_list
[j
].realname
);
4172 OPENSSL_free(a
->group_list
[j
].algorithm
);
4174 OPENSSL_free(a
->group_list
);
4175 for (j
= 0; j
< a
->sigalg_list_len
; j
++) {
4176 OPENSSL_free(a
->sigalg_list
[j
].name
);
4177 OPENSSL_free(a
->sigalg_list
[j
].sigalg_name
);
4178 OPENSSL_free(a
->sigalg_list
[j
].sigalg_oid
);
4179 OPENSSL_free(a
->sigalg_list
[j
].sig_name
);
4180 OPENSSL_free(a
->sigalg_list
[j
].sig_oid
);
4181 OPENSSL_free(a
->sigalg_list
[j
].hash_name
);
4182 OPENSSL_free(a
->sigalg_list
[j
].hash_oid
);
4183 OPENSSL_free(a
->sigalg_list
[j
].keytype
);
4184 OPENSSL_free(a
->sigalg_list
[j
].keytype_oid
);
4186 OPENSSL_free(a
->sigalg_list
);
4187 OPENSSL_free(a
->ssl_cert_info
);
4189 OPENSSL_free(a
->sigalg_lookup_cache
);
4190 OPENSSL_free(a
->tls12_sigalgs
);
4192 OPENSSL_free(a
->client_cert_type
);
4193 OPENSSL_free(a
->server_cert_type
);
4195 CRYPTO_THREAD_lock_free(a
->lock
);
4196 CRYPTO_FREE_REF(&a
->references
);
4197 #ifdef TSAN_REQUIRES_LOCKING
4198 CRYPTO_THREAD_lock_free(a
->tsan_lock
);
4201 OPENSSL_free(a
->propq
);
4206 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
4208 ctx
->default_passwd_callback
= cb
;
4211 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
4213 ctx
->default_passwd_callback_userdata
= u
;
4216 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
4218 return ctx
->default_passwd_callback
;
4221 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
4223 return ctx
->default_passwd_callback_userdata
;
4226 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
4228 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4233 sc
->default_passwd_callback
= cb
;
4236 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
4238 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4243 sc
->default_passwd_callback_userdata
= u
;
4246 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
4248 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4253 return sc
->default_passwd_callback
;
4256 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
4258 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4263 return sc
->default_passwd_callback_userdata
;
4266 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
4267 int (*cb
) (X509_STORE_CTX
*, void *),
4270 ctx
->app_verify_callback
= cb
;
4271 ctx
->app_verify_arg
= arg
;
4274 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
4275 int (*cb
) (int, X509_STORE_CTX
*))
4277 ctx
->verify_mode
= mode
;
4278 ctx
->default_verify_callback
= cb
;
4281 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
4283 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
4286 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4288 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
4291 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4293 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4298 ssl_cert_set_cert_cb(sc
->cert
, cb
, arg
);
4301 void ssl_set_masks(SSL_CONNECTION
*s
)
4304 uint32_t *pvalid
= s
->s3
.tmp
.valid_flags
;
4305 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
4306 unsigned long mask_k
, mask_a
;
4307 int have_ecc_cert
, ecdsa_ok
;
4312 dh_tmp
= (c
->dh_tmp
!= NULL
4313 || c
->dh_tmp_cb
!= NULL
4316 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4317 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4318 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
4319 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
4323 OSSL_TRACE4(TLS_CIPHER
, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4324 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
4326 #ifndef OPENSSL_NO_GOST
4327 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
4328 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4329 mask_a
|= SSL_aGOST12
;
4331 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
4332 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4333 mask_a
|= SSL_aGOST12
;
4335 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
4336 mask_k
|= SSL_kGOST
;
4337 mask_a
|= SSL_aGOST01
;
4348 * If we only have an RSA-PSS certificate allow RSA authentication
4349 * if TLS 1.2 and peer supports it.
4352 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
4353 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
4354 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
))
4361 mask_a
|= SSL_aNULL
;
4364 * You can do anything with an RPK key, since there's no cert to restrict it
4365 * But we need to check for private keys
4367 if (pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_RPK
) {
4371 if (pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_RPK
)
4372 mask_a
|= SSL_aECDSA
;
4373 if (TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
) {
4374 if (pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_RPK
)
4376 if (pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_RPK
4377 || pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_RPK
)
4378 mask_a
|= SSL_aECDSA
;
4382 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4383 * depending on the key usage extension.
4385 if (have_ecc_cert
) {
4387 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
4388 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
4389 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
4392 mask_a
|= SSL_aECDSA
;
4394 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4395 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
4396 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
4397 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4398 mask_a
|= SSL_aECDSA
;
4400 /* Allow Ed448 for TLS 1.2 if peer supports it */
4401 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
4402 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
4403 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4404 mask_a
|= SSL_aECDSA
;
4406 mask_k
|= SSL_kECDHE
;
4408 #ifndef OPENSSL_NO_PSK
4411 if (mask_k
& SSL_kRSA
)
4412 mask_k
|= SSL_kRSAPSK
;
4413 if (mask_k
& SSL_kDHE
)
4414 mask_k
|= SSL_kDHEPSK
;
4415 if (mask_k
& SSL_kECDHE
)
4416 mask_k
|= SSL_kECDHEPSK
;
4419 s
->s3
.tmp
.mask_k
= mask_k
;
4420 s
->s3
.tmp
.mask_a
= mask_a
;
4423 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CONNECTION
*s
)
4425 if (s
->s3
.tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
4426 /* key usage, if present, must allow signing */
4427 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
4428 ERR_raise(ERR_LIB_SSL
, SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
4432 return 1; /* all checks are ok */
4435 int ssl_get_server_cert_serverinfo(SSL_CONNECTION
*s
,
4436 const unsigned char **serverinfo
,
4437 size_t *serverinfo_length
)
4439 CERT_PKEY
*cpk
= s
->s3
.tmp
.cert
;
4440 *serverinfo_length
= 0;
4442 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
4445 *serverinfo
= cpk
->serverinfo
;
4446 *serverinfo_length
= cpk
->serverinfo_length
;
4450 void ssl_update_cache(SSL_CONNECTION
*s
, int mode
)
4455 * If the session_id_length is 0, we are not supposed to cache it, and it
4456 * would be rather hard to do anyway :-)
4458 if (s
->session
->session_id_length
== 0)
4462 * If sid_ctx_length is 0 there is no specific application context
4463 * associated with this session, so when we try to resume it and
4464 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4465 * indication that this is actually a session for the proper application
4466 * context, and the *handshake* will fail, not just the resumption attempt.
4467 * Do not cache (on the server) these sessions that are not resumable
4468 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4470 if (s
->server
&& s
->session
->sid_ctx_length
== 0
4471 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
4474 i
= s
->session_ctx
->session_cache_mode
;
4476 && (!s
->hit
|| SSL_CONNECTION_IS_TLS13(s
))) {
4478 * Add the session to the internal cache. In server side TLSv1.3 we
4479 * normally don't do this because by default it's a full stateless ticket
4480 * with only a dummy session id so there is no reason to cache it,
4482 * - we are doing early_data, in which case we cache so that we can
4484 * - the application has set a remove_session_cb so needs to know about
4485 * session timeout events
4486 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4488 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
4489 && (!SSL_CONNECTION_IS_TLS13(s
)
4491 || (s
->max_early_data
> 0
4492 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
4493 || s
->session_ctx
->remove_session_cb
!= NULL
4494 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
4495 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
4498 * Add the session to the external cache. We do this even in server side
4499 * TLSv1.3 without early data because some applications just want to
4500 * know about the creation of a session and aren't doing a full cache.
4502 if (s
->session_ctx
->new_session_cb
!= NULL
) {
4503 SSL_SESSION_up_ref(s
->session
);
4504 if (!s
->session_ctx
->new_session_cb(SSL_CONNECTION_GET_SSL(s
),
4506 SSL_SESSION_free(s
->session
);
4510 /* auto flush every 255 connections */
4511 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
4512 TSAN_QUALIFIER
int *stat
;
4514 if (mode
& SSL_SESS_CACHE_CLIENT
)
4515 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
4517 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
4518 if ((ssl_tsan_load(s
->session_ctx
, stat
) & 0xff) == 0xff)
4519 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
4523 const SSL_METHOD
*SSL_CTX_get_ssl_method(const SSL_CTX
*ctx
)
4528 const SSL_METHOD
*SSL_get_ssl_method(const SSL
*s
)
4533 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
4536 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4538 /* Not allowed for QUIC */
4540 || (s
->type
!= SSL_TYPE_SSL_CONNECTION
&& s
->method
!= meth
)
4541 || (s
->type
== SSL_TYPE_SSL_CONNECTION
&& IS_QUIC_METHOD(meth
)))
4544 if (s
->method
!= meth
) {
4545 const SSL_METHOD
*sm
= s
->method
;
4546 int (*hf
) (SSL
*) = sc
->handshake_func
;
4548 if (sm
->version
== meth
->version
)
4553 ret
= s
->method
->ssl_init(s
);
4556 if (hf
== sm
->ssl_connect
)
4557 sc
->handshake_func
= meth
->ssl_connect
;
4558 else if (hf
== sm
->ssl_accept
)
4559 sc
->handshake_func
= meth
->ssl_accept
;
4564 int SSL_get_error(const SSL
*s
, int i
)
4569 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4572 return SSL_ERROR_NONE
;
4574 #ifndef OPENSSL_NO_QUIC
4576 reason
= ossl_quic_get_error(s
, i
);
4577 if (reason
!= SSL_ERROR_NONE
)
4583 return SSL_ERROR_SSL
;
4586 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4587 * where we do encode the error
4589 if ((l
= ERR_peek_error()) != 0) {
4590 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
4591 return SSL_ERROR_SYSCALL
;
4593 return SSL_ERROR_SSL
;
4596 #ifndef OPENSSL_NO_QUIC
4600 if (SSL_want_read(s
)) {
4601 bio
= SSL_get_rbio(s
);
4602 if (BIO_should_read(bio
))
4603 return SSL_ERROR_WANT_READ
;
4604 else if (BIO_should_write(bio
))
4606 * This one doesn't make too much sense ... We never try to
4607 * write to the rbio, and an application program where rbio and
4608 * wbio are separate couldn't even know what it should wait for.
4609 * However if we ever set s->rwstate incorrectly (so that we
4610 * have SSL_want_read(s) instead of SSL_want_write(s)) and rbio
4611 * and wbio *are* the same, this test works around that bug; so
4612 * it might be safer to keep it.
4614 return SSL_ERROR_WANT_WRITE
;
4615 else if (BIO_should_io_special(bio
)) {
4616 reason
= BIO_get_retry_reason(bio
);
4617 if (reason
== BIO_RR_CONNECT
)
4618 return SSL_ERROR_WANT_CONNECT
;
4619 else if (reason
== BIO_RR_ACCEPT
)
4620 return SSL_ERROR_WANT_ACCEPT
;
4622 return SSL_ERROR_SYSCALL
; /* unknown */
4626 if (SSL_want_write(s
)) {
4628 * Access wbio directly - in order to use the buffered bio if
4632 if (BIO_should_write(bio
))
4633 return SSL_ERROR_WANT_WRITE
;
4634 else if (BIO_should_read(bio
))
4636 * See above (SSL_want_read(s) with BIO_should_write(bio))
4638 return SSL_ERROR_WANT_READ
;
4639 else if (BIO_should_io_special(bio
)) {
4640 reason
= BIO_get_retry_reason(bio
);
4641 if (reason
== BIO_RR_CONNECT
)
4642 return SSL_ERROR_WANT_CONNECT
;
4643 else if (reason
== BIO_RR_ACCEPT
)
4644 return SSL_ERROR_WANT_ACCEPT
;
4646 return SSL_ERROR_SYSCALL
;
4651 if (SSL_want_x509_lookup(s
))
4652 return SSL_ERROR_WANT_X509_LOOKUP
;
4653 if (SSL_want_retry_verify(s
))
4654 return SSL_ERROR_WANT_RETRY_VERIFY
;
4655 if (SSL_want_async(s
))
4656 return SSL_ERROR_WANT_ASYNC
;
4657 if (SSL_want_async_job(s
))
4658 return SSL_ERROR_WANT_ASYNC_JOB
;
4659 if (SSL_want_client_hello_cb(s
))
4660 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
4662 if ((sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
4663 (sc
->s3
.warn_alert
== SSL_AD_CLOSE_NOTIFY
))
4664 return SSL_ERROR_ZERO_RETURN
;
4666 return SSL_ERROR_SYSCALL
;
4669 static int ssl_do_handshake_intern(void *vargs
)
4671 struct ssl_async_args
*args
= (struct ssl_async_args
*)vargs
;
4673 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4678 return sc
->handshake_func(s
);
4681 int SSL_do_handshake(SSL
*s
)
4684 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4686 #ifndef OPENSSL_NO_QUIC
4688 return ossl_quic_do_handshake(s
);
4691 if (sc
->handshake_func
== NULL
) {
4692 ERR_raise(ERR_LIB_SSL
, SSL_R_CONNECTION_TYPE_NOT_SET
);
4696 ossl_statem_check_finish_init(sc
, -1);
4698 s
->method
->ssl_renegotiate_check(s
, 0);
4700 if (SSL_in_init(s
) || SSL_in_before(s
)) {
4701 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
4702 struct ssl_async_args args
;
4704 memset(&args
, 0, sizeof(args
));
4707 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
4709 ret
= sc
->handshake_func(s
);
4715 void SSL_set_accept_state(SSL
*s
)
4717 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4719 #ifndef OPENSSL_NO_QUIC
4721 ossl_quic_set_accept_state(s
);
4728 ossl_statem_clear(sc
);
4729 sc
->handshake_func
= s
->method
->ssl_accept
;
4730 /* Ignore return value. Its a void public API function */
4731 clear_record_layer(sc
);
4734 void SSL_set_connect_state(SSL
*s
)
4736 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4738 #ifndef OPENSSL_NO_QUIC
4740 ossl_quic_set_connect_state(s
);
4747 ossl_statem_clear(sc
);
4748 sc
->handshake_func
= s
->method
->ssl_connect
;
4749 /* Ignore return value. Its a void public API function */
4750 clear_record_layer(sc
);
4753 int ssl_undefined_function(SSL
*s
)
4755 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4759 int ssl_undefined_void_function(void)
4761 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4765 int ssl_undefined_const_function(const SSL
*s
)
4770 const SSL_METHOD
*ssl_bad_method(int ver
)
4772 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4776 const char *ssl_protocol_to_string(int version
)
4780 case TLS1_3_VERSION
:
4783 case TLS1_2_VERSION
:
4786 case TLS1_1_VERSION
:
4801 case DTLS1_2_VERSION
:
4809 const char *SSL_get_version(const SSL
*s
)
4811 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4813 #ifndef OPENSSL_NO_QUIC
4814 /* We only support QUICv1 - so if its QUIC its QUICv1 */
4815 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
4822 return ssl_protocol_to_string(sc
->version
);
4825 __owur
int SSL_get_handshake_rtt(const SSL
*s
, uint64_t *rtt
)
4827 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4831 if (sc
->ts_msg_write
.t
<= 0 || sc
->ts_msg_read
.t
<= 0)
4832 return 0; /* data not (yet) available */
4833 if (sc
->ts_msg_read
.t
< sc
->ts_msg_write
.t
)
4836 *rtt
= ossl_time2us(ossl_time_subtract(sc
->ts_msg_read
, sc
->ts_msg_write
));
4840 static int dup_ca_names(STACK_OF(X509_NAME
) **dst
, STACK_OF(X509_NAME
) *src
)
4842 STACK_OF(X509_NAME
) *sk
;
4851 if ((sk
= sk_X509_NAME_new_null()) == NULL
)
4853 for (i
= 0; i
< sk_X509_NAME_num(src
); i
++) {
4854 xn
= X509_NAME_dup(sk_X509_NAME_value(src
, i
));
4856 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4859 if (sk_X509_NAME_insert(sk
, xn
, i
) == 0) {
4861 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4870 SSL
*SSL_dup(SSL
*s
)
4874 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4875 SSL_CONNECTION
*retsc
;
4876 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4881 /* If we're not quiescent, just up_ref! */
4882 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
4883 CRYPTO_UP_REF(&s
->references
, &i
);
4888 * Otherwise, copy configuration state, and session if set.
4890 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
4892 if ((retsc
= SSL_CONNECTION_FROM_SSL_ONLY(ret
)) == NULL
)
4895 if (sc
->session
!= NULL
) {
4897 * Arranges to share the same session via up_ref. This "copies"
4898 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4900 if (!SSL_copy_session_id(ret
, s
))
4904 * No session has been established yet, so we have to expect that
4905 * s->cert or ret->cert will be changed later -- they should not both
4906 * point to the same object, and thus we can't use
4907 * SSL_copy_session_id.
4909 if (!SSL_set_ssl_method(ret
, s
->method
))
4912 if (sc
->cert
!= NULL
) {
4913 ssl_cert_free(retsc
->cert
);
4914 retsc
->cert
= ssl_cert_dup(sc
->cert
);
4915 if (retsc
->cert
== NULL
)
4919 if (!SSL_set_session_id_context(ret
, sc
->sid_ctx
,
4920 (int)sc
->sid_ctx_length
))
4924 if (!ssl_dane_dup(retsc
, sc
))
4926 retsc
->version
= sc
->version
;
4927 retsc
->options
= sc
->options
;
4928 retsc
->min_proto_version
= sc
->min_proto_version
;
4929 retsc
->max_proto_version
= sc
->max_proto_version
;
4930 retsc
->mode
= sc
->mode
;
4931 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
4932 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
4933 retsc
->msg_callback
= sc
->msg_callback
;
4934 retsc
->msg_callback_arg
= sc
->msg_callback_arg
;
4935 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
4936 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
4937 retsc
->generate_session_id
= sc
->generate_session_id
;
4939 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
4941 /* copy app data, a little dangerous perhaps */
4942 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
4945 retsc
->server
= sc
->server
;
4946 if (sc
->handshake_func
) {
4948 SSL_set_accept_state(ret
);
4950 SSL_set_connect_state(ret
);
4952 retsc
->shutdown
= sc
->shutdown
;
4953 retsc
->hit
= sc
->hit
;
4955 retsc
->default_passwd_callback
= sc
->default_passwd_callback
;
4956 retsc
->default_passwd_callback_userdata
= sc
->default_passwd_callback_userdata
;
4958 X509_VERIFY_PARAM_inherit(retsc
->param
, sc
->param
);
4960 /* dup the cipher_list and cipher_list_by_id stacks */
4961 if (sc
->cipher_list
!= NULL
) {
4962 if ((retsc
->cipher_list
= sk_SSL_CIPHER_dup(sc
->cipher_list
)) == NULL
)
4965 if (sc
->cipher_list_by_id
!= NULL
)
4966 if ((retsc
->cipher_list_by_id
= sk_SSL_CIPHER_dup(sc
->cipher_list_by_id
))
4970 /* Dup the client_CA list */
4971 if (!dup_ca_names(&retsc
->ca_names
, sc
->ca_names
)
4972 || !dup_ca_names(&retsc
->client_ca_names
, sc
->client_ca_names
))
4982 X509
*SSL_get_certificate(const SSL
*s
)
4984 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4989 if (sc
->cert
!= NULL
)
4990 return sc
->cert
->key
->x509
;
4995 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
4997 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5002 if (sc
->cert
!= NULL
)
5003 return sc
->cert
->key
->privatekey
;
5008 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
5010 if (ctx
->cert
!= NULL
)
5011 return ctx
->cert
->key
->x509
;
5016 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
5018 if (ctx
->cert
!= NULL
)
5019 return ctx
->cert
->key
->privatekey
;
5024 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
5026 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5031 if ((sc
->session
!= NULL
) && (sc
->session
->cipher
!= NULL
))
5032 return sc
->session
->cipher
;
5036 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
5038 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5043 return sc
->s3
.tmp
.new_cipher
;
5046 const COMP_METHOD
*SSL_get_current_compression(const SSL
*s
)
5048 #ifndef OPENSSL_NO_COMP
5049 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
5054 return sc
->rlayer
.wrlmethod
->get_compression(sc
->rlayer
.wrl
);
5060 const COMP_METHOD
*SSL_get_current_expansion(const SSL
*s
)
5062 #ifndef OPENSSL_NO_COMP
5063 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
5068 return sc
->rlayer
.rrlmethod
->get_compression(sc
->rlayer
.rrl
);
5074 int ssl_init_wbio_buffer(SSL_CONNECTION
*s
)
5078 if (s
->bbio
!= NULL
) {
5079 /* Already buffered. */
5083 bbio
= BIO_new(BIO_f_buffer());
5084 if (bbio
== NULL
|| BIO_set_read_buffer_size(bbio
, 1) <= 0) {
5086 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
5090 s
->wbio
= BIO_push(bbio
, s
->wbio
);
5092 s
->rlayer
.wrlmethod
->set1_bio(s
->rlayer
.wrl
, s
->wbio
);
5097 int ssl_free_wbio_buffer(SSL_CONNECTION
*s
)
5099 /* callers ensure s is never null */
5100 if (s
->bbio
== NULL
)
5103 s
->wbio
= BIO_pop(s
->wbio
);
5104 s
->rlayer
.wrlmethod
->set1_bio(s
->rlayer
.wrl
, s
->wbio
);
5112 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
5114 ctx
->quiet_shutdown
= mode
;
5117 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
5119 return ctx
->quiet_shutdown
;
5122 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
5124 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
5126 /* TODO(QUIC): Do we want this for QUIC? */
5130 sc
->quiet_shutdown
= mode
;
5133 int SSL_get_quiet_shutdown(const SSL
*s
)
5135 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
5137 /* TODO(QUIC): Do we want this for QUIC? */
5141 return sc
->quiet_shutdown
;
5144 void SSL_set_shutdown(SSL
*s
, int mode
)
5146 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
5148 /* TODO(QUIC): Do we want this for QUIC? */
5152 sc
->shutdown
= mode
;
5155 int SSL_get_shutdown(const SSL
*s
)
5157 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
5159 /* TODO(QUIC): Do we want this for QUIC? */
5163 return sc
->shutdown
;
5166 int SSL_version(const SSL
*s
)
5168 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5170 #ifndef OPENSSL_NO_QUIC
5171 /* We only support QUICv1 - so if its QUIC its QUICv1 */
5172 if (s
->type
== SSL_TYPE_QUIC_CONNECTION
|| s
->type
== SSL_TYPE_QUIC_XSO
)
5173 return OSSL_QUIC1_VERSION
;
5175 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5182 int SSL_client_version(const SSL
*s
)
5184 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5186 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
5190 return sc
->client_version
;
5193 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
5198 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
5201 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
5203 /* TODO(QUIC): Do we need this for QUIC support? */
5207 if (ssl
->ctx
== ctx
)
5210 ctx
= sc
->session_ctx
;
5211 new_cert
= ssl_cert_dup(ctx
->cert
);
5212 if (new_cert
== NULL
) {
5216 if (!custom_exts_copy_flags(&new_cert
->custext
, &sc
->cert
->custext
)) {
5217 ssl_cert_free(new_cert
);
5221 ssl_cert_free(sc
->cert
);
5222 sc
->cert
= new_cert
;
5225 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
5226 * so setter APIs must prevent invalid lengths from entering the system.
5228 if (!ossl_assert(sc
->sid_ctx_length
<= sizeof(sc
->sid_ctx
)))
5232 * If the session ID context matches that of the parent SSL_CTX,
5233 * inherit it from the new SSL_CTX as well. If however the context does
5234 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
5235 * leave it unchanged.
5237 if ((ssl
->ctx
!= NULL
) &&
5238 (sc
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
5239 (memcmp(sc
->sid_ctx
, ssl
->ctx
->sid_ctx
, sc
->sid_ctx_length
) == 0)) {
5240 sc
->sid_ctx_length
= ctx
->sid_ctx_length
;
5241 memcpy(&sc
->sid_ctx
, &ctx
->sid_ctx
, sizeof(sc
->sid_ctx
));
5244 SSL_CTX_up_ref(ctx
);
5245 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
5251 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
5253 return X509_STORE_set_default_paths_ex(ctx
->cert_store
, ctx
->libctx
,
5257 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
5259 X509_LOOKUP
*lookup
;
5261 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
5265 /* We ignore errors, in case the directory doesn't exist */
5268 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
5275 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
5277 X509_LOOKUP
*lookup
;
5279 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
5283 /* We ignore errors, in case the file doesn't exist */
5286 X509_LOOKUP_load_file_ex(lookup
, NULL
, X509_FILETYPE_DEFAULT
, ctx
->libctx
,
5294 int SSL_CTX_set_default_verify_store(SSL_CTX
*ctx
)
5296 X509_LOOKUP
*lookup
;
5298 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_store());
5302 /* We ignore errors, in case the directory doesn't exist */
5305 X509_LOOKUP_add_store_ex(lookup
, NULL
, ctx
->libctx
, ctx
->propq
);
5312 int SSL_CTX_load_verify_file(SSL_CTX
*ctx
, const char *CAfile
)
5314 return X509_STORE_load_file_ex(ctx
->cert_store
, CAfile
, ctx
->libctx
,
5318 int SSL_CTX_load_verify_dir(SSL_CTX
*ctx
, const char *CApath
)
5320 return X509_STORE_load_path(ctx
->cert_store
, CApath
);
5323 int SSL_CTX_load_verify_store(SSL_CTX
*ctx
, const char *CAstore
)
5325 return X509_STORE_load_store_ex(ctx
->cert_store
, CAstore
, ctx
->libctx
,
5329 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
5332 if (CAfile
== NULL
&& CApath
== NULL
)
5334 if (CAfile
!= NULL
&& !SSL_CTX_load_verify_file(ctx
, CAfile
))
5336 if (CApath
!= NULL
&& !SSL_CTX_load_verify_dir(ctx
, CApath
))
5341 void SSL_set_info_callback(SSL
*ssl
,
5342 void (*cb
) (const SSL
*ssl
, int type
, int val
))
5344 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5349 sc
->info_callback
= cb
;
5353 * One compiler (Diab DCC) doesn't like argument names in returned function
5356 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
5359 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5364 return sc
->info_callback
;
5367 void SSL_set_verify_result(SSL
*ssl
, long arg
)
5369 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5374 sc
->verify_result
= arg
;
5377 long SSL_get_verify_result(const SSL
*ssl
)
5379 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5384 return sc
->verify_result
;
5387 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5389 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5395 return sizeof(sc
->s3
.client_random
);
5396 if (outlen
> sizeof(sc
->s3
.client_random
))
5397 outlen
= sizeof(sc
->s3
.client_random
);
5398 memcpy(out
, sc
->s3
.client_random
, outlen
);
5402 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5404 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5410 return sizeof(sc
->s3
.server_random
);
5411 if (outlen
> sizeof(sc
->s3
.server_random
))
5412 outlen
= sizeof(sc
->s3
.server_random
);
5413 memcpy(out
, sc
->s3
.server_random
, outlen
);
5417 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
5418 unsigned char *out
, size_t outlen
)
5421 return session
->master_key_length
;
5422 if (outlen
> session
->master_key_length
)
5423 outlen
= session
->master_key_length
;
5424 memcpy(out
, session
->master_key
, outlen
);
5428 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
5431 if (len
> sizeof(sess
->master_key
))
5434 memcpy(sess
->master_key
, in
, len
);
5435 sess
->master_key_length
= len
;
5440 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
5442 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5445 void *SSL_get_ex_data(const SSL
*s
, int idx
)
5447 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5450 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
5452 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5455 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
5457 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5460 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
5462 return ctx
->cert_store
;
5465 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5467 X509_STORE_free(ctx
->cert_store
);
5468 ctx
->cert_store
= store
;
5471 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5474 X509_STORE_up_ref(store
);
5475 SSL_CTX_set_cert_store(ctx
, store
);
5478 int SSL_want(const SSL
*s
)
5480 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5488 #ifndef OPENSSL_NO_PSK
5489 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
5491 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5492 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5495 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
5496 if (identity_hint
!= NULL
) {
5497 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5498 if (ctx
->cert
->psk_identity_hint
== NULL
)
5501 ctx
->cert
->psk_identity_hint
= NULL
;
5505 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
5507 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5512 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5513 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5516 OPENSSL_free(sc
->cert
->psk_identity_hint
);
5517 if (identity_hint
!= NULL
) {
5518 sc
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5519 if (sc
->cert
->psk_identity_hint
== NULL
)
5522 sc
->cert
->psk_identity_hint
= NULL
;
5526 const char *SSL_get_psk_identity_hint(const SSL
*s
)
5528 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5530 if (sc
== NULL
|| sc
->session
== NULL
)
5533 return sc
->session
->psk_identity_hint
;
5536 const char *SSL_get_psk_identity(const SSL
*s
)
5538 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5540 if (sc
== NULL
|| sc
->session
== NULL
)
5543 return sc
->session
->psk_identity
;
5546 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
5548 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5553 sc
->psk_client_callback
= cb
;
5556 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
5558 ctx
->psk_client_callback
= cb
;
5561 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
5563 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5568 sc
->psk_server_callback
= cb
;
5571 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
5573 ctx
->psk_server_callback
= cb
;
5577 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
5579 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5584 sc
->psk_find_session_cb
= cb
;
5587 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
5588 SSL_psk_find_session_cb_func cb
)
5590 ctx
->psk_find_session_cb
= cb
;
5593 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
5595 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5600 sc
->psk_use_session_cb
= cb
;
5603 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
5604 SSL_psk_use_session_cb_func cb
)
5606 ctx
->psk_use_session_cb
= cb
;
5609 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
5610 void (*cb
) (int write_p
, int version
,
5611 int content_type
, const void *buf
,
5612 size_t len
, SSL
*ssl
, void *arg
))
5614 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5617 void SSL_set_msg_callback(SSL
*ssl
,
5618 void (*cb
) (int write_p
, int version
,
5619 int content_type
, const void *buf
,
5620 size_t len
, SSL
*ssl
, void *arg
))
5622 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5625 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
5626 int (*cb
) (SSL
*ssl
,
5630 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5631 (void (*)(void))cb
);
5634 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
5635 int (*cb
) (SSL
*ssl
,
5636 int is_forward_secure
))
5638 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5639 (void (*)(void))cb
);
5642 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
5643 size_t (*cb
) (SSL
*ssl
, int type
,
5644 size_t len
, void *arg
))
5646 ctx
->record_padding_cb
= cb
;
5649 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
5651 ctx
->record_padding_arg
= arg
;
5654 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX
*ctx
)
5656 return ctx
->record_padding_arg
;
5659 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
5661 /* block size of 0 or 1 is basically no padding */
5662 if (block_size
== 1)
5663 ctx
->block_padding
= 0;
5664 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5665 ctx
->block_padding
= block_size
;
5671 int SSL_set_record_padding_callback(SSL
*ssl
,
5672 size_t (*cb
) (SSL
*ssl
, int type
,
5673 size_t len
, void *arg
))
5676 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5678 if (sc
== NULL
|| IS_QUIC_SSL(ssl
))
5681 b
= SSL_get_wbio(ssl
);
5682 if (b
== NULL
|| !BIO_get_ktls_send(b
)) {
5683 sc
->rlayer
.record_padding_cb
= cb
;
5689 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
5691 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5696 sc
->rlayer
.record_padding_arg
= arg
;
5699 void *SSL_get_record_padding_callback_arg(const SSL
*ssl
)
5701 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5706 return sc
->rlayer
.record_padding_arg
;
5709 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
5711 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5713 if (sc
== NULL
|| (IS_QUIC_SSL(ssl
) && block_size
> 1))
5716 /* block size of 0 or 1 is basically no padding */
5717 if (block_size
== 1)
5718 sc
->rlayer
.block_padding
= 0;
5719 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5720 sc
->rlayer
.block_padding
= block_size
;
5726 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
5728 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5733 sc
->num_tickets
= num_tickets
;
5738 size_t SSL_get_num_tickets(const SSL
*s
)
5740 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5745 return sc
->num_tickets
;
5748 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
5750 ctx
->num_tickets
= num_tickets
;
5755 size_t SSL_CTX_get_num_tickets(const SSL_CTX
*ctx
)
5757 return ctx
->num_tickets
;
5760 /* Retrieve handshake hashes */
5761 int ssl_handshake_hash(SSL_CONNECTION
*s
,
5762 unsigned char *out
, size_t outlen
,
5765 EVP_MD_CTX
*ctx
= NULL
;
5766 EVP_MD_CTX
*hdgst
= s
->s3
.handshake_dgst
;
5767 int hashleni
= EVP_MD_CTX_get_size(hdgst
);
5770 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
5771 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5775 ctx
= EVP_MD_CTX_new();
5777 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5781 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
5782 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
5783 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5787 *hashlen
= hashleni
;
5791 EVP_MD_CTX_free(ctx
);
5795 int SSL_session_reused(const SSL
*s
)
5797 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5805 int SSL_is_server(const SSL
*s
)
5807 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5815 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5816 void SSL_set_debug(SSL
*s
, int debug
)
5818 /* Old function was do-nothing anyway... */
5824 void SSL_set_security_level(SSL
*s
, int level
)
5826 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5831 sc
->cert
->sec_level
= level
;
5834 int SSL_get_security_level(const SSL
*s
)
5836 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5841 return sc
->cert
->sec_level
;
5844 void SSL_set_security_callback(SSL
*s
,
5845 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5846 int op
, int bits
, int nid
,
5847 void *other
, void *ex
))
5849 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5854 sc
->cert
->sec_cb
= cb
;
5857 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
5858 const SSL_CTX
*ctx
, int op
,
5859 int bits
, int nid
, void *other
,
5861 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5866 return sc
->cert
->sec_cb
;
5869 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
5871 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5876 sc
->cert
->sec_ex
= ex
;
5879 void *SSL_get0_security_ex_data(const SSL
*s
)
5881 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5886 return sc
->cert
->sec_ex
;
5889 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
5891 ctx
->cert
->sec_level
= level
;
5894 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
5896 return ctx
->cert
->sec_level
;
5899 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
5900 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5901 int op
, int bits
, int nid
,
5902 void *other
, void *ex
))
5904 ctx
->cert
->sec_cb
= cb
;
5907 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
5913 return ctx
->cert
->sec_cb
;
5916 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
5918 ctx
->cert
->sec_ex
= ex
;
5921 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
5923 return ctx
->cert
->sec_ex
;
5926 uint64_t SSL_CTX_get_options(const SSL_CTX
*ctx
)
5928 return ctx
->options
;
5931 uint64_t SSL_get_options(const SSL
*s
)
5933 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5935 #ifndef OPENSSL_NO_QUIC
5937 return ossl_quic_get_options(s
);
5946 uint64_t SSL_CTX_set_options(SSL_CTX
*ctx
, uint64_t op
)
5948 return ctx
->options
|= op
;
5951 uint64_t SSL_set_options(SSL
*s
, uint64_t op
)
5954 OSSL_PARAM options
[2], *opts
= options
;
5956 #ifndef OPENSSL_NO_QUIC
5958 return ossl_quic_set_options(s
, op
);
5961 sc
= SSL_CONNECTION_FROM_SSL(s
);
5967 *opts
++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS
,
5969 *opts
= OSSL_PARAM_construct_end();
5971 /* Ignore return value */
5972 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
5977 uint64_t SSL_CTX_clear_options(SSL_CTX
*ctx
, uint64_t op
)
5979 return ctx
->options
&= ~op
;
5982 uint64_t SSL_clear_options(SSL
*s
, uint64_t op
)
5984 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5986 #ifndef OPENSSL_NO_QUIC
5988 return ossl_quic_clear_options(s
, op
);
5994 return sc
->options
&= ~op
;
5997 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
5999 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6004 return sc
->verified_chain
;
6007 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
6009 #ifndef OPENSSL_NO_CT
6012 * Moves SCTs from the |src| stack to the |dst| stack.
6013 * The source of each SCT will be set to |origin|.
6014 * If |dst| points to a NULL pointer, a new stack will be created and owned by
6016 * Returns the number of SCTs moved, or a negative integer if an error occurs.
6018 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
6019 sct_source_t origin
)
6025 *dst
= sk_SCT_new_null();
6027 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
6032 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
6033 if (SCT_set_source(sct
, origin
) != 1)
6036 if (sk_SCT_push(*dst
, sct
) <= 0)
6044 sk_SCT_push(src
, sct
); /* Put the SCT back */
6049 * Look for data collected during ServerHello and parse if found.
6050 * Returns the number of SCTs extracted.
6052 static int ct_extract_tls_extension_scts(SSL_CONNECTION
*s
)
6054 int scts_extracted
= 0;
6056 if (s
->ext
.scts
!= NULL
) {
6057 const unsigned char *p
= s
->ext
.scts
;
6058 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
6060 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
6062 SCT_LIST_free(scts
);
6065 return scts_extracted
;
6069 * Checks for an OCSP response and then attempts to extract any SCTs found if it
6070 * contains an SCT X509 extension. They will be stored in |s->scts|.
6072 * - The number of SCTs extracted, assuming an OCSP response exists.
6073 * - 0 if no OCSP response exists or it contains no SCTs.
6074 * - A negative integer if an error occurs.
6076 static int ct_extract_ocsp_response_scts(SSL_CONNECTION
*s
)
6078 # ifndef OPENSSL_NO_OCSP
6079 int scts_extracted
= 0;
6080 const unsigned char *p
;
6081 OCSP_BASICRESP
*br
= NULL
;
6082 OCSP_RESPONSE
*rsp
= NULL
;
6083 STACK_OF(SCT
) *scts
= NULL
;
6086 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
6089 p
= s
->ext
.ocsp
.resp
;
6090 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
6094 br
= OCSP_response_get1_basic(rsp
);
6098 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
6099 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
6105 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
6107 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
6108 if (scts_extracted
< 0)
6112 SCT_LIST_free(scts
);
6113 OCSP_BASICRESP_free(br
);
6114 OCSP_RESPONSE_free(rsp
);
6115 return scts_extracted
;
6117 /* Behave as if no OCSP response exists */
6123 * Attempts to extract SCTs from the peer certificate.
6124 * Return the number of SCTs extracted, or a negative integer if an error
6127 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION
*s
)
6129 int scts_extracted
= 0;
6130 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
6133 STACK_OF(SCT
) *scts
=
6134 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
6137 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
6139 SCT_LIST_free(scts
);
6142 return scts_extracted
;
6146 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
6147 * response (if it exists) and X509v3 extensions in the certificate.
6148 * Returns NULL if an error occurs.
6150 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
6152 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6157 if (!sc
->scts_parsed
) {
6158 if (ct_extract_tls_extension_scts(sc
) < 0 ||
6159 ct_extract_ocsp_response_scts(sc
) < 0 ||
6160 ct_extract_x509v3_extension_scts(sc
) < 0)
6163 sc
->scts_parsed
= 1;
6170 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
6171 const STACK_OF(SCT
) *scts
, void *unused_arg
)
6176 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
6177 const STACK_OF(SCT
) *scts
, void *unused_arg
)
6179 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
6182 for (i
= 0; i
< count
; ++i
) {
6183 SCT
*sct
= sk_SCT_value(scts
, i
);
6184 int status
= SCT_get_validation_status(sct
);
6186 if (status
== SCT_VALIDATION_STATUS_VALID
)
6189 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_VALID_SCTS
);
6193 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
6196 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6202 * Since code exists that uses the custom extension handler for CT, look
6203 * for this and throw an error if they have already registered to use CT.
6205 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
6206 TLSEXT_TYPE_signed_certificate_timestamp
))
6208 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
6212 if (callback
!= NULL
) {
6214 * If we are validating CT, then we MUST accept SCTs served via OCSP
6216 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
6220 sc
->ct_validation_callback
= callback
;
6221 sc
->ct_validation_callback_arg
= arg
;
6226 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
6227 ssl_ct_validation_cb callback
, void *arg
)
6230 * Since code exists that uses the custom extension handler for CT, look for
6231 * this and throw an error if they have already registered to use CT.
6233 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
6234 TLSEXT_TYPE_signed_certificate_timestamp
))
6236 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
6240 ctx
->ct_validation_callback
= callback
;
6241 ctx
->ct_validation_callback_arg
= arg
;
6245 int SSL_ct_is_enabled(const SSL
*s
)
6247 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6252 return sc
->ct_validation_callback
!= NULL
;
6255 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
6257 return ctx
->ct_validation_callback
!= NULL
;
6260 int ssl_validate_ct(SSL_CONNECTION
*s
)
6263 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
6265 SSL_DANE
*dane
= &s
->dane
;
6266 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
6267 const STACK_OF(SCT
) *scts
;
6270 * If no callback is set, the peer is anonymous, or its chain is invalid,
6271 * skip SCT validation - just return success. Applications that continue
6272 * handshakes without certificates, with unverified chains, or pinned leaf
6273 * certificates are outside the scope of the WebPKI and CT.
6275 * The above exclusions notwithstanding the vast majority of peers will
6276 * have rather ordinary certificate chains validated by typical
6277 * applications that perform certificate verification and therefore will
6278 * process SCTs when enabled.
6280 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
6281 s
->verify_result
!= X509_V_OK
||
6282 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
6286 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6287 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6289 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
6290 switch (dane
->mtlsa
->usage
) {
6291 case DANETLS_USAGE_DANE_TA
:
6292 case DANETLS_USAGE_DANE_EE
:
6297 ctx
= CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s
)->libctx
,
6298 SSL_CONNECTION_GET_CTX(s
)->propq
);
6300 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CT_LIB
);
6304 issuer
= sk_X509_value(s
->verified_chain
, 1);
6305 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
6306 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
6307 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
,
6308 SSL_CONNECTION_GET_CTX(s
)->ctlog_store
);
6309 CT_POLICY_EVAL_CTX_set_time(
6310 ctx
, (uint64_t)SSL_SESSION_get_time(s
->session
) * 1000);
6312 scts
= SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s
));
6315 * This function returns success (> 0) only when all the SCTs are valid, 0
6316 * when some are invalid, and < 0 on various internal errors (out of
6317 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6318 * reason to abort the handshake, that decision is up to the callback.
6319 * Therefore, we error out only in the unexpected case that the return
6320 * value is negative.
6322 * XXX: One might well argue that the return value of this function is an
6323 * unfortunate design choice. Its job is only to determine the validation
6324 * status of each of the provided SCTs. So long as it correctly separates
6325 * the wheat from the chaff it should return success. Failure in this case
6326 * ought to correspond to an inability to carry out its duties.
6328 if (SCT_LIST_validate(scts
, ctx
) < 0) {
6329 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_SCT_VERIFICATION_FAILED
);
6333 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
6335 ret
= 0; /* This function returns 0 on failure */
6337 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_CALLBACK_FAILED
);
6340 CT_POLICY_EVAL_CTX_free(ctx
);
6342 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6343 * failure return code here. Also the application may wish the complete
6344 * the handshake, and then disconnect cleanly at a higher layer, after
6345 * checking the verification status of the completed connection.
6347 * We therefore force a certificate verification failure which will be
6348 * visible via SSL_get_verify_result() and cached as part of any resumed
6351 * Note: the permissive callback is for information gathering only, always
6352 * returns success, and does not affect verification status. Only the
6353 * strict callback or a custom application-specified callback can trigger
6354 * connection failure or record a verification error.
6357 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
6361 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
6363 switch (validation_mode
) {
6365 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6367 case SSL_CT_VALIDATION_PERMISSIVE
:
6368 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
6369 case SSL_CT_VALIDATION_STRICT
:
6370 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
6374 int SSL_enable_ct(SSL
*s
, int validation_mode
)
6376 switch (validation_mode
) {
6378 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6380 case SSL_CT_VALIDATION_PERMISSIVE
:
6381 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
6382 case SSL_CT_VALIDATION_STRICT
:
6383 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
6387 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
6389 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
6392 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
6394 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
6397 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
6399 CTLOG_STORE_free(ctx
->ctlog_store
);
6400 ctx
->ctlog_store
= logs
;
6403 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
6405 return ctx
->ctlog_store
;
6408 #endif /* OPENSSL_NO_CT */
6410 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
6413 c
->client_hello_cb
= cb
;
6414 c
->client_hello_cb_arg
= arg
;
6417 int SSL_client_hello_isv2(SSL
*s
)
6419 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6424 if (sc
->clienthello
== NULL
)
6426 return sc
->clienthello
->isv2
;
6429 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
6431 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6436 if (sc
->clienthello
== NULL
)
6438 return sc
->clienthello
->legacy_version
;
6441 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
6443 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6448 if (sc
->clienthello
== NULL
)
6451 *out
= sc
->clienthello
->random
;
6452 return SSL3_RANDOM_SIZE
;
6455 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
6457 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6462 if (sc
->clienthello
== NULL
)
6465 *out
= sc
->clienthello
->session_id
;
6466 return sc
->clienthello
->session_id_len
;
6469 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
6471 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6476 if (sc
->clienthello
== NULL
)
6479 *out
= PACKET_data(&sc
->clienthello
->ciphersuites
);
6480 return PACKET_remaining(&sc
->clienthello
->ciphersuites
);
6483 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
6485 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6490 if (sc
->clienthello
== NULL
)
6493 *out
= sc
->clienthello
->compressions
;
6494 return sc
->clienthello
->compressions_len
;
6497 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
6502 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6507 if (sc
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
6509 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6510 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6519 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
)
6521 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6522 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6524 if (ext
->received_order
>= num
)
6526 present
[ext
->received_order
] = ext
->type
;
6533 OPENSSL_free(present
);
6537 int SSL_client_hello_get_extension_order(SSL
*s
, uint16_t *exts
, size_t *num_exts
)
6541 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6546 if (sc
->clienthello
== NULL
|| num_exts
== NULL
)
6548 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6549 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6561 if (*num_exts
< num
)
6563 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6564 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6566 if (ext
->received_order
>= num
)
6568 exts
[ext
->received_order
] = ext
->type
;
6575 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
6580 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6585 if (sc
->clienthello
== NULL
)
6587 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; ++i
) {
6588 r
= sc
->clienthello
->pre_proc_exts
+ i
;
6589 if (r
->present
&& r
->type
== type
) {
6591 *out
= PACKET_data(&r
->data
);
6593 *outlen
= PACKET_remaining(&r
->data
);
6600 int SSL_free_buffers(SSL
*ssl
)
6603 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6608 /* QUIC buffers are always 'in use'. */
6609 if (IS_QUIC_SSL(ssl
))
6614 return rl
->rrlmethod
->free_buffers(rl
->rrl
)
6615 && rl
->wrlmethod
->free_buffers(rl
->wrl
);
6618 int SSL_alloc_buffers(SSL
*ssl
)
6621 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6626 /* QUIC always has buffers allocated. */
6627 if (IS_QUIC_SSL(ssl
))
6632 return rl
->rrlmethod
->alloc_buffers(rl
->rrl
)
6633 && rl
->wrlmethod
->alloc_buffers(rl
->wrl
);
6636 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
6638 ctx
->keylog_callback
= cb
;
6641 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
6643 return ctx
->keylog_callback
;
6646 static int nss_keylog_int(const char *prefix
,
6648 const uint8_t *parameter_1
,
6649 size_t parameter_1_len
,
6650 const uint8_t *parameter_2
,
6651 size_t parameter_2_len
)
6654 char *cursor
= NULL
;
6658 SSL_CTX
*sctx
= SSL_CONNECTION_GET_CTX(sc
);
6660 if (sctx
->keylog_callback
== NULL
)
6664 * Our output buffer will contain the following strings, rendered with
6665 * space characters in between, terminated by a NULL character: first the
6666 * prefix, then the first parameter, then the second parameter. The
6667 * meaning of each parameter depends on the specific key material being
6668 * logged. Note that the first and second parameters are encoded in
6669 * hexadecimal, so we need a buffer that is twice their lengths.
6671 prefix_len
= strlen(prefix
);
6672 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
6673 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
)
6676 strcpy(cursor
, prefix
);
6677 cursor
+= prefix_len
;
6680 for (i
= 0; i
< parameter_1_len
; i
++) {
6681 sprintf(cursor
, "%02x", parameter_1
[i
]);
6686 for (i
= 0; i
< parameter_2_len
; i
++) {
6687 sprintf(cursor
, "%02x", parameter_2
[i
]);
6692 sctx
->keylog_callback(SSL_CONNECTION_GET_SSL(sc
), (const char *)out
);
6693 OPENSSL_clear_free(out
, out_len
);
6698 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION
*sc
,
6699 const uint8_t *encrypted_premaster
,
6700 size_t encrypted_premaster_len
,
6701 const uint8_t *premaster
,
6702 size_t premaster_len
)
6704 if (encrypted_premaster_len
< 8) {
6705 SSLfatal(sc
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6709 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6710 return nss_keylog_int("RSA",
6712 encrypted_premaster
,
6718 int ssl_log_secret(SSL_CONNECTION
*sc
,
6720 const uint8_t *secret
,
6723 return nss_keylog_int(label
,
6725 sc
->s3
.client_random
,
6731 #define SSLV2_CIPHER_LEN 3
6733 int ssl_cache_cipherlist(SSL_CONNECTION
*s
, PACKET
*cipher_suites
, int sslv2format
)
6737 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6739 if (PACKET_remaining(cipher_suites
) == 0) {
6740 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6744 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6745 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6749 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6750 s
->s3
.tmp
.ciphers_raw
= NULL
;
6751 s
->s3
.tmp
.ciphers_rawlen
= 0;
6754 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
6755 PACKET sslv2ciphers
= *cipher_suites
;
6756 unsigned int leadbyte
;
6760 * We store the raw ciphers list in SSLv3+ format so we need to do some
6761 * preprocessing to convert the list first. If there are any SSLv2 only
6762 * ciphersuites with a non-zero leading byte then we are going to
6763 * slightly over allocate because we won't store those. But that isn't a
6766 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
6767 s
->s3
.tmp
.ciphers_raw
= raw
;
6769 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CRYPTO_LIB
);
6772 for (s
->s3
.tmp
.ciphers_rawlen
= 0;
6773 PACKET_remaining(&sslv2ciphers
) > 0;
6774 raw
+= TLS_CIPHER_LEN
) {
6775 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
6777 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
6780 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
6781 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_PACKET
);
6782 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6783 s
->s3
.tmp
.ciphers_raw
= NULL
;
6784 s
->s3
.tmp
.ciphers_rawlen
= 0;
6788 s
->s3
.tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
6790 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
.tmp
.ciphers_raw
,
6791 &s
->s3
.tmp
.ciphers_rawlen
)) {
6792 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6798 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
6799 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
6800 STACK_OF(SSL_CIPHER
) **scsvs
)
6803 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6808 if (!PACKET_buf_init(&pkt
, bytes
, len
))
6810 return ossl_bytes_to_cipher_list(sc
, &pkt
, sk
, scsvs
, isv2format
, 0);
6813 int ossl_bytes_to_cipher_list(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
6814 STACK_OF(SSL_CIPHER
) **skp
,
6815 STACK_OF(SSL_CIPHER
) **scsvs_out
,
6816 int sslv2format
, int fatal
)
6818 const SSL_CIPHER
*c
;
6819 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
6820 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
6822 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6823 unsigned char cipher
[SSLV2_CIPHER_LEN
];
6825 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6827 if (PACKET_remaining(cipher_suites
) == 0) {
6829 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6831 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHERS_SPECIFIED
);
6835 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6837 SSLfatal(s
, SSL_AD_DECODE_ERROR
,
6838 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6840 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6844 sk
= sk_SSL_CIPHER_new_null();
6845 scsvs
= sk_SSL_CIPHER_new_null();
6846 if (sk
== NULL
|| scsvs
== NULL
) {
6848 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CRYPTO_LIB
);
6850 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
6854 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
6856 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6857 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6858 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6860 if (sslv2format
&& cipher
[0] != '\0')
6863 /* For SSLv2-compat, ignore leading 0-byte. */
6864 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
6866 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
6867 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
6869 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CRYPTO_LIB
);
6871 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
6876 if (PACKET_remaining(cipher_suites
) > 0) {
6878 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_LENGTH
);
6880 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
6887 sk_SSL_CIPHER_free(sk
);
6888 if (scsvs_out
!= NULL
)
6891 sk_SSL_CIPHER_free(scsvs
);
6894 sk_SSL_CIPHER_free(sk
);
6895 sk_SSL_CIPHER_free(scsvs
);
6899 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
6901 ctx
->max_early_data
= max_early_data
;
6906 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
6908 return ctx
->max_early_data
;
6911 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
6913 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6915 if (sc
== NULL
|| IS_QUIC_SSL(s
))
6918 sc
->max_early_data
= max_early_data
;
6923 uint32_t SSL_get_max_early_data(const SSL
*s
)
6925 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6930 return sc
->max_early_data
;
6933 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
6935 ctx
->recv_max_early_data
= recv_max_early_data
;
6940 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
6942 return ctx
->recv_max_early_data
;
6945 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
6947 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6949 if (sc
== NULL
|| IS_QUIC_SSL(s
))
6952 sc
->recv_max_early_data
= recv_max_early_data
;
6957 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
6959 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6964 return sc
->recv_max_early_data
;
6967 __owur
unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION
*sc
)
6969 /* Return any active Max Fragment Len extension */
6970 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
))
6971 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6973 /* return current SSL connection setting */
6974 return sc
->max_send_fragment
;
6977 __owur
unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION
*sc
)
6979 /* Return a value regarding an active Max Fragment Len extension */
6980 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
)
6981 && sc
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(sc
->session
))
6982 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6984 /* else limit |split_send_fragment| to current |max_send_fragment| */
6985 if (sc
->split_send_fragment
> sc
->max_send_fragment
)
6986 return sc
->max_send_fragment
;
6988 /* return current SSL connection setting */
6989 return sc
->split_send_fragment
;
6992 int SSL_stateless(SSL
*s
)
6995 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6997 if (sc
== NULL
|| IS_QUIC_SSL(s
))
7000 /* Ensure there is no state left over from a previous invocation */
7006 sc
->s3
.flags
|= TLS1_FLAGS_STATELESS
;
7007 ret
= SSL_accept(s
);
7008 sc
->s3
.flags
&= ~TLS1_FLAGS_STATELESS
;
7010 if (ret
> 0 && sc
->ext
.cookieok
)
7013 if (sc
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(sc
))
7019 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
7021 ctx
->pha_enabled
= val
;
7024 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
7026 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
7027 #ifndef OPENSSL_NO_QUIC
7028 QUIC_CONNECTION
*qc
= QUIC_CONNECTION_FROM_SSL(ssl
);
7037 sc
->pha_enabled
= val
;
7040 int SSL_verify_client_post_handshake(SSL
*ssl
)
7042 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
7043 #ifndef OPENSSL_NO_QUIC
7044 QUIC_CONNECTION
*qc
= QUIC_CONNECTION_FROM_SSL(ssl
);
7047 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
7055 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
7056 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
7060 ERR_raise(ERR_LIB_SSL
, SSL_R_NOT_SERVER
);
7064 if (!SSL_is_init_finished(ssl
)) {
7065 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
7069 switch (sc
->post_handshake_auth
) {
7071 ERR_raise(ERR_LIB_SSL
, SSL_R_EXTENSION_NOT_RECEIVED
);
7074 case SSL_PHA_EXT_SENT
:
7075 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
7077 case SSL_PHA_EXT_RECEIVED
:
7079 case SSL_PHA_REQUEST_PENDING
:
7080 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_PENDING
);
7082 case SSL_PHA_REQUESTED
:
7083 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_SENT
);
7087 sc
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
7089 /* checks verify_mode and algorithm_auth */
7090 if (!send_certificate_request(sc
)) {
7091 sc
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
7092 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CONFIG
);
7096 ossl_statem_set_in_init(sc
, 1);
7100 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
7101 SSL_CTX_generate_session_ticket_fn gen_cb
,
7102 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
7105 ctx
->generate_ticket_cb
= gen_cb
;
7106 ctx
->decrypt_ticket_cb
= dec_cb
;
7107 ctx
->ticket_cb_data
= arg
;
7111 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
7112 SSL_allow_early_data_cb_fn cb
,
7115 ctx
->allow_early_data_cb
= cb
;
7116 ctx
->allow_early_data_cb_data
= arg
;
7119 void SSL_set_allow_early_data_cb(SSL
*s
,
7120 SSL_allow_early_data_cb_fn cb
,
7123 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7125 if (sc
== NULL
|| IS_QUIC_SSL(s
))
7128 sc
->allow_early_data_cb
= cb
;
7129 sc
->allow_early_data_cb_data
= arg
;
7132 const EVP_CIPHER
*ssl_evp_cipher_fetch(OSSL_LIB_CTX
*libctx
,
7134 const char *properties
)
7136 const EVP_CIPHER
*ciph
;
7138 ciph
= tls_get_cipher_from_engine(nid
);
7143 * If there is no engine cipher then we do an explicit fetch. This may fail
7144 * and that could be ok
7147 ciph
= EVP_CIPHER_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
7153 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
)
7155 /* Don't up-ref an implicit EVP_CIPHER */
7156 if (EVP_CIPHER_get0_provider(cipher
) == NULL
)
7160 * The cipher was explicitly fetched and therefore it is safe to cast
7163 return EVP_CIPHER_up_ref((EVP_CIPHER
*)cipher
);
7166 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
)
7171 if (EVP_CIPHER_get0_provider(cipher
) != NULL
) {
7173 * The cipher was explicitly fetched and therefore it is safe to cast
7176 EVP_CIPHER_free((EVP_CIPHER
*)cipher
);
7180 const EVP_MD
*ssl_evp_md_fetch(OSSL_LIB_CTX
*libctx
,
7182 const char *properties
)
7186 md
= tls_get_digest_from_engine(nid
);
7190 /* Otherwise we do an explicit fetch */
7192 md
= EVP_MD_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
7197 int ssl_evp_md_up_ref(const EVP_MD
*md
)
7199 /* Don't up-ref an implicit EVP_MD */
7200 if (EVP_MD_get0_provider(md
) == NULL
)
7204 * The digest was explicitly fetched and therefore it is safe to cast
7207 return EVP_MD_up_ref((EVP_MD
*)md
);
7210 void ssl_evp_md_free(const EVP_MD
*md
)
7215 if (EVP_MD_get0_provider(md
) != NULL
) {
7217 * The digest was explicitly fetched and therefore it is safe to cast
7220 EVP_MD_free((EVP_MD
*)md
);
7224 int SSL_set0_tmp_dh_pkey(SSL
*s
, EVP_PKEY
*dhpkey
)
7226 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7231 if (!ssl_security(sc
, SSL_SECOP_TMP_DH
,
7232 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
7233 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
7236 EVP_PKEY_free(sc
->cert
->dh_tmp
);
7237 sc
->cert
->dh_tmp
= dhpkey
;
7241 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX
*ctx
, EVP_PKEY
*dhpkey
)
7243 if (!ssl_ctx_security(ctx
, SSL_SECOP_TMP_DH
,
7244 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
7245 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
7248 EVP_PKEY_free(ctx
->cert
->dh_tmp
);
7249 ctx
->cert
->dh_tmp
= dhpkey
;
7253 /* QUIC-specific methods which are supported on QUIC connections only. */
7254 int SSL_handle_events(SSL
*s
)
7258 #ifndef OPENSSL_NO_QUIC
7260 return ossl_quic_handle_events(s
);
7263 sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
7264 if (sc
!= NULL
&& SSL_CONNECTION_IS_DTLS(sc
))
7266 * DTLSv1_handle_timeout returns 0 if the timer wasn't expired yet,
7267 * which we consider a success case. Theoretically DTLSv1_handle_timeout
7268 * can also return 0 if s is NULL or not a DTLS object, but we've
7269 * already ruled out those possibilities above, so this is not possible
7270 * here. Thus the only failure cases are where DTLSv1_handle_timeout
7273 return DTLSv1_handle_timeout(s
) >= 0;
7278 int SSL_get_event_timeout(SSL
*s
, struct timeval
*tv
, int *is_infinite
)
7282 #ifndef OPENSSL_NO_QUIC
7284 return ossl_quic_get_event_timeout(s
, tv
, is_infinite
);
7287 sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
7288 if (sc
!= NULL
&& SSL_CONNECTION_IS_DTLS(sc
)
7289 && DTLSv1_get_timeout(s
, tv
)) {
7294 tv
->tv_sec
= 1000000;
7300 int SSL_get_rpoll_descriptor(SSL
*s
, BIO_POLL_DESCRIPTOR
*desc
)
7302 #ifndef OPENSSL_NO_QUIC
7306 return ossl_quic_get_rpoll_descriptor(s
, desc
);
7312 int SSL_get_wpoll_descriptor(SSL
*s
, BIO_POLL_DESCRIPTOR
*desc
)
7314 #ifndef OPENSSL_NO_QUIC
7318 return ossl_quic_get_wpoll_descriptor(s
, desc
);
7324 int SSL_net_read_desired(SSL
*s
)
7326 #ifndef OPENSSL_NO_QUIC
7330 return ossl_quic_get_net_read_desired(s
);
7336 int SSL_net_write_desired(SSL
*s
)
7338 #ifndef OPENSSL_NO_QUIC
7342 return ossl_quic_get_net_write_desired(s
);
7348 int SSL_set_blocking_mode(SSL
*s
, int blocking
)
7350 #ifndef OPENSSL_NO_QUIC
7354 return ossl_quic_conn_set_blocking_mode(s
, blocking
);
7360 int SSL_get_blocking_mode(SSL
*s
)
7362 #ifndef OPENSSL_NO_QUIC
7366 return ossl_quic_conn_get_blocking_mode(s
);
7372 int SSL_set_initial_peer_addr(SSL
*s
, const BIO_ADDR
*peer_addr
)
7374 #ifndef OPENSSL_NO_QUIC
7378 return ossl_quic_conn_set_initial_peer_addr(s
, peer_addr
);
7384 int SSL_shutdown_ex(SSL
*ssl
, uint64_t flags
,
7385 const SSL_SHUTDOWN_EX_ARGS
*args
,
7388 #ifndef OPENSSL_NO_QUIC
7390 return SSL_shutdown(ssl
);
7392 return ossl_quic_conn_shutdown(ssl
, flags
, args
, args_len
);
7394 return SSL_shutdown(ssl
);
7398 int SSL_stream_conclude(SSL
*ssl
, uint64_t flags
)
7400 #ifndef OPENSSL_NO_QUIC
7404 return ossl_quic_conn_stream_conclude(ssl
);
7410 SSL
*SSL_new_stream(SSL
*s
, uint64_t flags
)
7412 #ifndef OPENSSL_NO_QUIC
7416 return ossl_quic_conn_stream_new(s
, flags
);
7422 SSL
*SSL_get0_connection(SSL
*s
)
7424 #ifndef OPENSSL_NO_QUIC
7428 return ossl_quic_get0_connection(s
);
7434 int SSL_is_connection(SSL
*s
)
7436 return SSL_get0_connection(s
) == s
;
7439 int SSL_get_stream_type(SSL
*s
)
7441 #ifndef OPENSSL_NO_QUIC
7443 return SSL_STREAM_TYPE_BIDI
;
7445 return ossl_quic_get_stream_type(s
);
7447 return SSL_STREAM_TYPE_BIDI
;
7451 uint64_t SSL_get_stream_id(SSL
*s
)
7453 #ifndef OPENSSL_NO_QUIC
7457 return ossl_quic_get_stream_id(s
);
7463 int SSL_set_default_stream_mode(SSL
*s
, uint32_t mode
)
7465 #ifndef OPENSSL_NO_QUIC
7469 return ossl_quic_set_default_stream_mode(s
, mode
);
7475 int SSL_set_incoming_stream_policy(SSL
*s
, int policy
, uint64_t aec
)
7477 #ifndef OPENSSL_NO_QUIC
7481 return ossl_quic_set_incoming_stream_policy(s
, policy
, aec
);
7487 SSL
*SSL_accept_stream(SSL
*s
, uint64_t flags
)
7489 #ifndef OPENSSL_NO_QUIC
7493 return ossl_quic_accept_stream(s
, flags
);
7499 size_t SSL_get_accept_stream_queue_len(SSL
*s
)
7501 #ifndef OPENSSL_NO_QUIC
7505 return ossl_quic_get_accept_stream_queue_len(s
);
7511 int SSL_stream_reset(SSL
*s
,
7512 const SSL_STREAM_RESET_ARGS
*args
,
7515 #ifndef OPENSSL_NO_QUIC
7519 return ossl_quic_stream_reset(s
, args
, args_len
);
7525 int SSL_get_stream_read_state(SSL
*s
)
7527 #ifndef OPENSSL_NO_QUIC
7529 return SSL_STREAM_STATE_NONE
;
7531 return ossl_quic_get_stream_read_state(s
);
7533 return SSL_STREAM_STATE_NONE
;
7537 int SSL_get_stream_write_state(SSL
*s
)
7539 #ifndef OPENSSL_NO_QUIC
7541 return SSL_STREAM_STATE_NONE
;
7543 return ossl_quic_get_stream_write_state(s
);
7545 return SSL_STREAM_STATE_NONE
;
7549 int SSL_get_stream_read_error_code(SSL
*s
, uint64_t *app_error_code
)
7551 #ifndef OPENSSL_NO_QUIC
7555 return ossl_quic_get_stream_read_error_code(s
, app_error_code
);
7561 int SSL_get_stream_write_error_code(SSL
*s
, uint64_t *app_error_code
)
7563 #ifndef OPENSSL_NO_QUIC
7567 return ossl_quic_get_stream_write_error_code(s
, app_error_code
);
7573 int SSL_get_conn_close_info(SSL
*s
, SSL_CONN_CLOSE_INFO
*info
,
7576 #ifndef OPENSSL_NO_QUIC
7580 return ossl_quic_get_conn_close_info(s
, info
, info_len
);
7586 int SSL_add_expected_rpk(SSL
*s
, EVP_PKEY
*rpk
)
7588 unsigned char *data
= NULL
;
7589 SSL_DANE
*dane
= SSL_get0_dane(s
);
7592 if (dane
== NULL
|| dane
->dctx
== NULL
)
7594 if ((ret
= i2d_PUBKEY(rpk
, &data
)) <= 0)
7597 ret
= SSL_dane_tlsa_add(s
, DANETLS_USAGE_DANE_EE
,
7598 DANETLS_SELECTOR_SPKI
,
7599 DANETLS_MATCHING_FULL
,
7600 data
, (size_t)ret
) > 0;
7605 EVP_PKEY
*SSL_get0_peer_rpk(const SSL
*s
)
7607 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7609 if (sc
== NULL
|| sc
->session
== NULL
)
7611 return sc
->session
->peer_rpk
;
7614 int SSL_get_negotiated_client_cert_type(const SSL
*s
)
7616 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7621 return sc
->ext
.client_cert_type
;
7624 int SSL_get_negotiated_server_cert_type(const SSL
*s
)
7626 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7631 return sc
->ext
.server_cert_type
;
7634 static int validate_cert_type(const unsigned char *val
, size_t len
)
7640 if (val
== NULL
&& len
== 0)
7643 if (val
== NULL
|| len
== 0)
7646 for (i
= 0; i
< len
; i
++) {
7648 case TLSEXT_cert_type_rpk
:
7653 case TLSEXT_cert_type_x509
:
7658 case TLSEXT_cert_type_pgp
:
7659 case TLSEXT_cert_type_1609dot2
:
7667 static int set_cert_type(unsigned char **cert_type
,
7668 size_t *cert_type_len
,
7669 const unsigned char *val
,
7672 unsigned char *tmp
= NULL
;
7674 if (!validate_cert_type(val
, len
))
7677 if (val
!= NULL
&& (tmp
= OPENSSL_memdup(val
, len
)) == NULL
)
7680 OPENSSL_free(*cert_type
);
7682 *cert_type_len
= len
;
7686 int SSL_set1_client_cert_type(SSL
*s
, const unsigned char *val
, size_t len
)
7688 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7690 return set_cert_type(&sc
->client_cert_type
, &sc
->client_cert_type_len
,
7694 int SSL_set1_server_cert_type(SSL
*s
, const unsigned char *val
, size_t len
)
7696 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
7698 return set_cert_type(&sc
->server_cert_type
, &sc
->server_cert_type_len
,
7702 int SSL_CTX_set1_client_cert_type(SSL_CTX
*ctx
, const unsigned char *val
, size_t len
)
7704 return set_cert_type(&ctx
->client_cert_type
, &ctx
->client_cert_type_len
,
7708 int SSL_CTX_set1_server_cert_type(SSL_CTX
*ctx
, const unsigned char *val
, size_t len
)
7710 return set_cert_type(&ctx
->server_cert_type
, &ctx
->server_cert_type_len
,
7714 int SSL_get0_client_cert_type(const SSL
*s
, unsigned char **t
, size_t *len
)
7716 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
7718 if (t
== NULL
|| len
== NULL
)
7721 *t
= sc
->client_cert_type
;
7722 *len
= sc
->client_cert_type_len
;
7726 int SSL_get0_server_cert_type(const SSL
*s
, unsigned char **t
, size_t *len
)
7728 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
7730 if (t
== NULL
|| len
== NULL
)
7733 *t
= sc
->server_cert_type
;
7734 *len
= sc
->server_cert_type_len
;
7738 int SSL_CTX_get0_client_cert_type(const SSL_CTX
*ctx
, unsigned char **t
, size_t *len
)
7740 if (t
== NULL
|| len
== NULL
)
7743 *t
= ctx
->client_cert_type
;
7744 *len
= ctx
->client_cert_type_len
;
7748 int SSL_CTX_get0_server_cert_type(const SSL_CTX
*ctx
, unsigned char **t
, size_t *len
)
7750 if (t
== NULL
|| len
== NULL
)
7753 *t
= ctx
->server_cert_type
;
7754 *len
= ctx
->server_cert_type_len
;