2 * Copyright 1995-2022 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 "internal/cryptlib.h"
25 #include "internal/refcount.h"
26 #include "internal/ktls.h"
28 static int ssl_undefined_function_1(SSL_CONNECTION
*sc
, SSL3_RECORD
*r
, size_t s
,
29 int t
, SSL_MAC_BUF
*mac
, size_t macsize
)
31 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
34 static int ssl_undefined_function_2(SSL_CONNECTION
*sc
, SSL3_RECORD
*r
,
35 unsigned char *s
, int t
)
37 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
40 static int ssl_undefined_function_3(SSL_CONNECTION
*sc
, unsigned char *r
,
41 unsigned char *s
, size_t t
, size_t *u
)
43 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
46 static int ssl_undefined_function_4(SSL_CONNECTION
*sc
, int r
)
48 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
51 static size_t ssl_undefined_function_5(SSL_CONNECTION
*sc
, const char *r
,
52 size_t s
, unsigned char *t
)
54 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
57 static int ssl_undefined_function_6(int r
)
59 return ssl_undefined_function(NULL
);
62 static int ssl_undefined_function_7(SSL_CONNECTION
*sc
, unsigned char *r
,
63 size_t s
, const char *t
, size_t u
,
64 const unsigned char *v
, size_t w
, int x
)
66 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
69 static int ssl_undefined_function_8(SSL_CONNECTION
*sc
)
71 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
74 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
75 ssl_undefined_function_1
,
76 ssl_undefined_function_2
,
77 ssl_undefined_function_8
,
78 ssl_undefined_function_3
,
79 ssl_undefined_function_4
,
80 ssl_undefined_function_5
,
81 NULL
, /* client_finished_label */
82 0, /* client_finished_label_len */
83 NULL
, /* server_finished_label */
84 0, /* server_finished_label_len */
85 ssl_undefined_function_6
,
86 ssl_undefined_function_7
,
89 struct ssl_async_args
{
93 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
95 int (*func_read
) (SSL
*, void *, size_t, size_t *);
96 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
97 int (*func_other
) (SSL
*);
101 static const struct {
107 DANETLS_MATCHING_FULL
, 0, NID_undef
110 DANETLS_MATCHING_2256
, 1, NID_sha256
113 DANETLS_MATCHING_2512
, 2, NID_sha512
117 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
119 const EVP_MD
**mdevp
;
121 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
122 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
125 if (dctx
->mdevp
!= NULL
)
128 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
129 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
131 if (mdord
== NULL
|| mdevp
== NULL
) {
134 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
138 /* Install default entries */
139 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
142 if (dane_mds
[i
].nid
== NID_undef
||
143 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
145 mdevp
[dane_mds
[i
].mtype
] = md
;
146 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
156 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
158 OPENSSL_free(dctx
->mdevp
);
161 OPENSSL_free(dctx
->mdord
);
166 static void tlsa_free(danetls_record
*t
)
170 OPENSSL_free(t
->data
);
171 EVP_PKEY_free(t
->spki
);
175 static void dane_final(SSL_DANE
*dane
)
177 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
180 OSSL_STACK_OF_X509_free(dane
->certs
);
183 X509_free(dane
->mcert
);
191 * dane_copy - Copy dane configuration, sans verification state.
193 static int ssl_dane_dup(SSL_CONNECTION
*to
, SSL_CONNECTION
*from
)
198 if (!DANETLS_ENABLED(&from
->dane
))
201 num
= sk_danetls_record_num(from
->dane
.trecs
);
202 dane_final(&to
->dane
);
203 to
->dane
.flags
= from
->dane
.flags
;
204 to
->dane
.dctx
= &SSL_CONNECTION_GET_CTX(to
)->dane
;
205 to
->dane
.trecs
= sk_danetls_record_new_reserve(NULL
, num
);
207 if (to
->dane
.trecs
== NULL
) {
208 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
212 for (i
= 0; i
< num
; ++i
) {
213 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
215 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to
), t
->usage
,
216 t
->selector
, t
->mtype
, t
->data
, t
->dlen
) <= 0)
222 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
223 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
227 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
228 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
232 if (mtype
> dctx
->mdmax
) {
233 const EVP_MD
**mdevp
;
235 int n
= ((int)mtype
) + 1;
237 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
239 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
244 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
246 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
251 /* Zero-fill any gaps */
252 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
260 dctx
->mdevp
[mtype
] = md
;
261 /* Coerce ordinal of disabled matching types to 0 */
262 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
267 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
269 if (mtype
> dane
->dctx
->mdmax
)
271 return dane
->dctx
->mdevp
[mtype
];
274 static int dane_tlsa_add(SSL_DANE
*dane
,
277 uint8_t mtype
, const unsigned char *data
, size_t dlen
)
280 const EVP_MD
*md
= NULL
;
281 int ilen
= (int)dlen
;
285 if (dane
->trecs
== NULL
) {
286 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_NOT_ENABLED
);
290 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
291 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
295 if (usage
> DANETLS_USAGE_LAST
) {
296 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
300 if (selector
> DANETLS_SELECTOR_LAST
) {
301 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
305 if (mtype
!= DANETLS_MATCHING_FULL
) {
306 md
= tlsa_md_get(dane
, mtype
);
308 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
313 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_get_size(md
)) {
314 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
318 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_NULL_DATA
);
322 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
323 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
328 t
->selector
= selector
;
330 t
->data
= OPENSSL_malloc(dlen
);
331 if (t
->data
== NULL
) {
333 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
336 memcpy(t
->data
, data
, dlen
);
339 /* Validate and cache full certificate or public key */
340 if (mtype
== DANETLS_MATCHING_FULL
) {
341 const unsigned char *p
= data
;
343 EVP_PKEY
*pkey
= NULL
;
346 case DANETLS_SELECTOR_CERT
:
347 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
348 dlen
!= (size_t)(p
- data
)) {
350 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
353 if (X509_get0_pubkey(cert
) == NULL
) {
355 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
359 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
365 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
366 * records that contain full certificates of trust-anchors that are
367 * not present in the wire chain. For usage PKIX-TA(0), we augment
368 * the chain with untrusted Full(0) certificates from DNS, in case
369 * they are missing from the chain.
371 if ((dane
->certs
== NULL
&&
372 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
373 !sk_X509_push(dane
->certs
, cert
)) {
374 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
381 case DANETLS_SELECTOR_SPKI
:
382 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
383 dlen
!= (size_t)(p
- data
)) {
385 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
390 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
391 * records that contain full bare keys of trust-anchors that are
392 * not present in the wire chain.
394 if (usage
== DANETLS_USAGE_DANE_TA
)
403 * Find the right insertion point for the new record.
405 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
406 * they can be processed first, as they require no chain building, and no
407 * expiration or hostname checks. Because DANE-EE(3) is numerically
408 * largest, this is accomplished via descending sort by "usage".
410 * We also sort in descending order by matching ordinal to simplify
411 * the implementation of digest agility in the verification code.
413 * The choice of order for the selector is not significant, so we
414 * use the same descending order for consistency.
416 num
= sk_danetls_record_num(dane
->trecs
);
417 for (i
= 0; i
< num
; ++i
) {
418 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
420 if (rec
->usage
> usage
)
422 if (rec
->usage
< usage
)
424 if (rec
->selector
> selector
)
426 if (rec
->selector
< selector
)
428 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
433 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
435 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
438 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
444 * Return 0 if there is only one version configured and it was disabled
445 * at configure time. Return 1 otherwise.
447 static int ssl_check_allowed_versions(int min_version
, int max_version
)
449 int minisdtls
= 0, maxisdtls
= 0;
451 /* Figure out if we're doing DTLS versions or TLS versions */
452 if (min_version
== DTLS1_BAD_VER
453 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
455 if (max_version
== DTLS1_BAD_VER
456 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
458 /* A wildcard version of 0 could be DTLS or TLS. */
459 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
460 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
461 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
465 if (minisdtls
|| maxisdtls
) {
466 /* Do DTLS version checks. */
467 if (min_version
== 0)
468 /* Ignore DTLS1_BAD_VER */
469 min_version
= DTLS1_VERSION
;
470 if (max_version
== 0)
471 max_version
= DTLS1_2_VERSION
;
472 #ifdef OPENSSL_NO_DTLS1_2
473 if (max_version
== DTLS1_2_VERSION
)
474 max_version
= DTLS1_VERSION
;
476 #ifdef OPENSSL_NO_DTLS1
477 if (min_version
== DTLS1_VERSION
)
478 min_version
= DTLS1_2_VERSION
;
480 /* Done massaging versions; do the check. */
482 #ifdef OPENSSL_NO_DTLS1
483 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
484 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
486 #ifdef OPENSSL_NO_DTLS1_2
487 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
488 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
493 /* Regular TLS version checks. */
494 if (min_version
== 0)
495 min_version
= SSL3_VERSION
;
496 if (max_version
== 0)
497 max_version
= TLS1_3_VERSION
;
498 #ifdef OPENSSL_NO_TLS1_3
499 if (max_version
== TLS1_3_VERSION
)
500 max_version
= TLS1_2_VERSION
;
502 #ifdef OPENSSL_NO_TLS1_2
503 if (max_version
== TLS1_2_VERSION
)
504 max_version
= TLS1_1_VERSION
;
506 #ifdef OPENSSL_NO_TLS1_1
507 if (max_version
== TLS1_1_VERSION
)
508 max_version
= TLS1_VERSION
;
510 #ifdef OPENSSL_NO_TLS1
511 if (max_version
== TLS1_VERSION
)
512 max_version
= SSL3_VERSION
;
514 #ifdef OPENSSL_NO_SSL3
515 if (min_version
== SSL3_VERSION
)
516 min_version
= TLS1_VERSION
;
518 #ifdef OPENSSL_NO_TLS1
519 if (min_version
== TLS1_VERSION
)
520 min_version
= TLS1_1_VERSION
;
522 #ifdef OPENSSL_NO_TLS1_1
523 if (min_version
== TLS1_1_VERSION
)
524 min_version
= TLS1_2_VERSION
;
526 #ifdef OPENSSL_NO_TLS1_2
527 if (min_version
== TLS1_2_VERSION
)
528 min_version
= TLS1_3_VERSION
;
530 /* Done massaging versions; do the check. */
532 #ifdef OPENSSL_NO_SSL3
533 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
535 #ifdef OPENSSL_NO_TLS1
536 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
538 #ifdef OPENSSL_NO_TLS1_1
539 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
541 #ifdef OPENSSL_NO_TLS1_2
542 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
544 #ifdef OPENSSL_NO_TLS1_3
545 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
553 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
555 * Define a VPROC function for HP NonStop build ssl library.
556 * This is used by platform version identification tools.
557 * Do not inline this procedure or make it static.
559 # define OPENSSL_VPROC_STRING_(x) x##_SSL
560 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
561 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
562 void OPENSSL_VPROC_FUNC(void) {}
566 static void clear_ciphers(SSL_CONNECTION
*s
)
568 /* clear the current cipher */
569 ssl_clear_cipher_ctx(s
);
570 ssl_clear_hash_ctx(&s
->read_hash
);
571 ssl_clear_hash_ctx(&s
->write_hash
);
574 int SSL_clear(SSL
*s
)
576 if (s
->method
== NULL
) {
577 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_METHOD_SPECIFIED
);
581 return s
->method
->ssl_reset(s
);
584 int ossl_ssl_connection_reset(SSL
*s
)
586 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
591 if (ssl_clear_bad_session(sc
)) {
592 SSL_SESSION_free(sc
->session
);
595 SSL_SESSION_free(sc
->psksession
);
596 sc
->psksession
= NULL
;
597 OPENSSL_free(sc
->psksession_id
);
598 sc
->psksession_id
= NULL
;
599 sc
->psksession_id_len
= 0;
600 sc
->hello_retry_request
= 0;
601 sc
->sent_tickets
= 0;
607 if (sc
->renegotiate
) {
608 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
612 ossl_statem_clear(sc
);
614 /* TODO(QUIC): Version handling not yet clear */
615 sc
->version
= s
->method
->version
;
616 sc
->client_version
= sc
->version
;
617 sc
->rwstate
= SSL_NOTHING
;
619 BUF_MEM_free(sc
->init_buf
);
622 sc
->first_packet
= 0;
624 sc
->key_update
= SSL_KEY_UPDATE_NONE
;
626 EVP_MD_CTX_free(sc
->pha_dgst
);
629 /* Reset DANE verification result state */
632 X509_free(sc
->dane
.mcert
);
633 sc
->dane
.mcert
= NULL
;
634 sc
->dane
.mtlsa
= NULL
;
636 /* Clear the verification result peername */
637 X509_VERIFY_PARAM_move_peername(sc
->param
, NULL
);
639 /* Clear any shared connection state */
640 OPENSSL_free(sc
->shared_sigalgs
);
641 sc
->shared_sigalgs
= NULL
;
642 sc
->shared_sigalgslen
= 0;
645 * Check to see if we were changed into a different method, if so, revert
648 if (s
->method
!= SSL_CONNECTION_GET_CTX(sc
)->method
) {
649 s
->method
->ssl_deinit(s
);
650 s
->method
= SSL_CONNECTION_GET_CTX(sc
)->method
;
651 if (!s
->method
->ssl_init(s
))
654 if (!s
->method
->ssl_clear(s
))
658 RECORD_LAYER_clear(&sc
->rlayer
);
659 BIO_free(sc
->rrlnext
);
663 * TODO(RECLAYER): The record method should probably initialy come from the
664 * SSL_METHOD, and potentially be updated later. For now though we just
667 if (!ssl_set_new_record_layer(sc
,
669 OSSL_RECORD_DIRECTION_READ
,
670 OSSL_RECORD_PROTECTION_LEVEL_NONE
,
671 NULL
, 0, NULL
, 0, NULL
, 0, NULL
, 0,
672 NID_undef
, NULL
, NULL
)) {
673 /* SSLfatal already called */
680 #ifndef OPENSSL_NO_DEPRECATED_3_0
681 /** Used to change an SSL_CTXs default SSL method type */
682 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
684 STACK_OF(SSL_CIPHER
) *sk
;
688 if (!SSL_CTX_set_ciphersuites(ctx
, OSSL_default_ciphersuites())) {
689 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
692 sk
= ssl_create_cipher_list(ctx
,
693 ctx
->tls13_ciphersuites
,
695 &(ctx
->cipher_list_by_id
),
696 OSSL_default_cipher_list(), ctx
->cert
);
697 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
698 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
705 SSL
*SSL_new(SSL_CTX
*ctx
)
708 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_CTX
);
711 if (ctx
->method
== NULL
) {
712 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
715 return ctx
->method
->ssl_new(ctx
);
718 int ossl_ssl_init(SSL
*ssl
, SSL_CTX
*ctx
, int type
)
723 ssl
->lock
= CRYPTO_THREAD_lock_new();
724 if (ssl
->lock
== NULL
)
730 ssl
->method
= ctx
->method
;
732 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, ssl
, &ssl
->ex_data
))
738 SSL
*ossl_ssl_connection_new(SSL_CTX
*ctx
)
743 s
= OPENSSL_zalloc(sizeof(*s
));
748 if (!ossl_ssl_init(ssl
, ctx
, SSL_TYPE_SSL_CONNECTION
)) {
754 #ifndef OPENSSL_NO_QUIC
755 /* set the parent (user visible) ssl to self */
759 RECORD_LAYER_init(&s
->rlayer
, s
);
761 s
->options
= ctx
->options
;
762 s
->dane
.flags
= ctx
->dane
.flags
;
763 s
->min_proto_version
= ctx
->min_proto_version
;
764 s
->max_proto_version
= ctx
->max_proto_version
;
766 s
->max_cert_list
= ctx
->max_cert_list
;
767 s
->max_early_data
= ctx
->max_early_data
;
768 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
769 s
->num_tickets
= ctx
->num_tickets
;
770 s
->pha_enabled
= ctx
->pha_enabled
;
772 /* Shallow copy of the ciphersuites stack */
773 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
774 if (s
->tls13_ciphersuites
== NULL
)
778 * Earlier library versions used to copy the pointer to the CERT, not
779 * its contents; only when setting new parameters for the per-SSL
780 * copy, ssl_cert_new would be called (and the direct reference to
781 * the per-SSL_CTX settings would be lost, but those still were
782 * indirectly accessed for various purposes, and for that reason they
783 * used to be known as s->ctx->default_cert). Now we don't look at the
784 * SSL_CTX's CERT after having duplicated it once.
786 s
->cert
= ssl_cert_dup(ctx
->cert
);
790 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
791 s
->msg_callback
= ctx
->msg_callback
;
792 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
793 s
->verify_mode
= ctx
->verify_mode
;
794 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
795 s
->record_padding_cb
= ctx
->record_padding_cb
;
796 s
->record_padding_arg
= ctx
->record_padding_arg
;
797 s
->block_padding
= ctx
->block_padding
;
798 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
799 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
801 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
802 s
->verify_callback
= ctx
->default_verify_callback
;
803 s
->generate_session_id
= ctx
->generate_session_id
;
805 s
->param
= X509_VERIFY_PARAM_new();
806 if (s
->param
== NULL
)
808 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
809 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
811 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
812 s
->max_send_fragment
= ctx
->max_send_fragment
;
813 s
->split_send_fragment
= ctx
->split_send_fragment
;
814 s
->max_pipelines
= ctx
->max_pipelines
;
815 if (ctx
->default_read_buf_len
> 0)
816 SSL_set_default_read_buffer_len(ssl
, ctx
->default_read_buf_len
);
819 s
->ext
.debug_arg
= NULL
;
820 s
->ext
.ticket_expected
= 0;
821 s
->ext
.status_type
= ctx
->ext
.status_type
;
822 s
->ext
.status_expected
= 0;
823 s
->ext
.ocsp
.ids
= NULL
;
824 s
->ext
.ocsp
.exts
= NULL
;
825 s
->ext
.ocsp
.resp
= NULL
;
826 s
->ext
.ocsp
.resp_len
= 0;
828 s
->session_ctx
= ctx
;
829 if (ctx
->ext
.ecpointformats
) {
830 s
->ext
.ecpointformats
=
831 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
832 ctx
->ext
.ecpointformats_len
);
833 if (!s
->ext
.ecpointformats
) {
834 s
->ext
.ecpointformats_len
= 0;
837 s
->ext
.ecpointformats_len
=
838 ctx
->ext
.ecpointformats_len
;
840 if (ctx
->ext
.supportedgroups
) {
841 s
->ext
.supportedgroups
=
842 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
843 ctx
->ext
.supportedgroups_len
844 * sizeof(*ctx
->ext
.supportedgroups
));
845 if (!s
->ext
.supportedgroups
) {
846 s
->ext
.supportedgroups_len
= 0;
849 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
852 #ifndef OPENSSL_NO_NEXTPROTONEG
856 if (ctx
->ext
.alpn
!= NULL
) {
857 s
->ext
.alpn
= OPENSSL_malloc(ctx
->ext
.alpn_len
);
858 if (s
->ext
.alpn
== NULL
) {
862 memcpy(s
->ext
.alpn
, ctx
->ext
.alpn
, ctx
->ext
.alpn_len
);
863 s
->ext
.alpn_len
= ctx
->ext
.alpn_len
;
866 s
->verified_chain
= NULL
;
867 s
->verify_result
= X509_V_OK
;
869 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
870 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
872 s
->key_update
= SSL_KEY_UPDATE_NONE
;
874 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
875 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
877 if (!ssl
->method
->ssl_init(ssl
))
880 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
885 #ifndef OPENSSL_NO_PSK
886 s
->psk_client_callback
= ctx
->psk_client_callback
;
887 s
->psk_server_callback
= ctx
->psk_server_callback
;
889 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
890 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
892 s
->async_cb
= ctx
->async_cb
;
893 s
->async_cb_arg
= ctx
->async_cb_arg
;
897 #ifndef OPENSSL_NO_CT
898 if (!SSL_set_ct_validation_callback(ssl
, ctx
->ct_validation_callback
,
899 ctx
->ct_validation_callback_arg
))
906 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
910 int SSL_is_dtls(const SSL
*s
)
912 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
917 return SSL_CONNECTION_IS_DTLS(sc
) ? 1 : 0;
920 int SSL_up_ref(SSL
*s
)
924 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
927 REF_PRINT_COUNT("SSL", s
);
928 REF_ASSERT_ISNT(i
< 2);
929 return ((i
> 1) ? 1 : 0);
932 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
933 unsigned int sid_ctx_len
)
935 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
936 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
939 ctx
->sid_ctx_length
= sid_ctx_len
;
940 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
945 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
946 unsigned int sid_ctx_len
)
948 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
953 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
954 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
957 sc
->sid_ctx_length
= sid_ctx_len
;
958 memcpy(sc
->sid_ctx
, sid_ctx
, sid_ctx_len
);
963 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
965 if (!CRYPTO_THREAD_write_lock(ctx
->lock
))
967 ctx
->generate_session_id
= cb
;
968 CRYPTO_THREAD_unlock(ctx
->lock
);
972 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
974 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
976 if (sc
== NULL
|| !CRYPTO_THREAD_write_lock(ssl
->lock
))
978 sc
->generate_session_id
= cb
;
979 CRYPTO_THREAD_unlock(ssl
->lock
);
983 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
987 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
988 * we can "construct" a session to give us the desired check - i.e. to
989 * find if there's a session in the hash table that would conflict with
990 * any new session built out of this id/id_len and the ssl_version in use
994 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
996 if (sc
== NULL
|| id_len
> sizeof(r
.session_id
))
999 r
.ssl_version
= sc
->version
;
1000 r
.session_id_length
= id_len
;
1001 memcpy(r
.session_id
, id
, id_len
);
1003 if (!CRYPTO_THREAD_read_lock(sc
->session_ctx
->lock
))
1005 p
= lh_SSL_SESSION_retrieve(sc
->session_ctx
->sessions
, &r
);
1006 CRYPTO_THREAD_unlock(sc
->session_ctx
->lock
);
1010 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
1012 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
1015 int SSL_set_purpose(SSL
*s
, int purpose
)
1017 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1022 return X509_VERIFY_PARAM_set_purpose(sc
->param
, purpose
);
1025 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
1027 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
1030 int SSL_set_trust(SSL
*s
, int trust
)
1032 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1037 return X509_VERIFY_PARAM_set_trust(sc
->param
, trust
);
1040 int SSL_set1_host(SSL
*s
, const char *hostname
)
1042 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1047 /* If a hostname is provided and parses as an IP address,
1048 * treat it as such. */
1049 if (hostname
!= NULL
1050 && X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
) == 1)
1053 return X509_VERIFY_PARAM_set1_host(sc
->param
, hostname
, 0);
1056 int SSL_add1_host(SSL
*s
, const char *hostname
)
1058 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1063 /* If a hostname is provided and parses as an IP address,
1064 * treat it as such. */
1067 ASN1_OCTET_STRING
*ip
;
1070 ip
= a2i_IPADDRESS(hostname
);
1072 /* We didn't want it; only to check if it *is* an IP address */
1073 ASN1_OCTET_STRING_free(ip
);
1075 old_ip
= X509_VERIFY_PARAM_get1_ip_asc(sc
->param
);
1078 OPENSSL_free(old_ip
);
1079 /* There can be only one IP address */
1083 return X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
);
1087 return X509_VERIFY_PARAM_add1_host(sc
->param
, hostname
, 0);
1090 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
1092 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1097 X509_VERIFY_PARAM_set_hostflags(sc
->param
, flags
);
1100 const char *SSL_get0_peername(SSL
*s
)
1102 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1107 return X509_VERIFY_PARAM_get0_peername(sc
->param
);
1110 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
1112 return dane_ctx_enable(&ctx
->dane
);
1115 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
1117 unsigned long orig
= ctx
->dane
.flags
;
1119 ctx
->dane
.flags
|= flags
;
1123 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
1125 unsigned long orig
= ctx
->dane
.flags
;
1127 ctx
->dane
.flags
&= ~flags
;
1131 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1134 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1140 if (s
->ctx
->dane
.mdmax
== 0) {
1141 ERR_raise(ERR_LIB_SSL
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1144 if (dane
->trecs
!= NULL
) {
1145 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_ALREADY_ENABLED
);
1150 * Default SNI name. This rejects empty names, while set1_host below
1151 * accepts them and disables host name checks. To avoid side-effects with
1152 * invalid input, set the SNI name first.
1154 if (sc
->ext
.hostname
== NULL
) {
1155 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1156 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1161 /* Primary RFC6125 reference identifier */
1162 if (!X509_VERIFY_PARAM_set1_host(sc
->param
, basedomain
, 0)) {
1163 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1169 dane
->dctx
= &s
->ctx
->dane
;
1170 dane
->trecs
= sk_danetls_record_new_null();
1172 if (dane
->trecs
== NULL
) {
1173 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
1179 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1182 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1187 orig
= sc
->dane
.flags
;
1189 sc
->dane
.flags
|= flags
;
1193 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1196 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1201 orig
= sc
->dane
.flags
;
1203 sc
->dane
.flags
&= ~flags
;
1207 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1210 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1217 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1221 *mcert
= dane
->mcert
;
1223 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1228 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1229 uint8_t *mtype
, const unsigned char **data
, size_t *dlen
)
1232 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1239 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1243 *usage
= dane
->mtlsa
->usage
;
1245 *selector
= dane
->mtlsa
->selector
;
1247 *mtype
= dane
->mtlsa
->mtype
;
1249 *data
= dane
->mtlsa
->data
;
1251 *dlen
= dane
->mtlsa
->dlen
;
1256 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1258 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1266 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1267 uint8_t mtype
, const unsigned char *data
, size_t dlen
)
1269 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1274 return dane_tlsa_add(&sc
->dane
, usage
, selector
, mtype
, data
, dlen
);
1277 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1280 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1283 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1285 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1288 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1290 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1295 return X509_VERIFY_PARAM_set1(sc
->param
, vpm
);
1298 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1303 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1305 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1313 void SSL_certs_clear(SSL
*s
)
1315 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1320 ssl_cert_clear_certs(sc
->cert
);
1323 void SSL_free(SSL
*s
)
1329 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1330 REF_PRINT_COUNT("SSL", s
);
1333 REF_ASSERT_ISNT(i
< 0);
1335 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1337 if (s
->method
!= NULL
)
1338 s
->method
->ssl_free(s
);
1340 SSL_CTX_free(s
->ctx
);
1341 CRYPTO_THREAD_lock_free(s
->lock
);
1346 void ossl_ssl_connection_free(SSL
*ssl
)
1350 s
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
1354 if (s
->rrlmethod
!= NULL
)
1355 s
->rrlmethod
->free(s
->rrl
); /* Ignore return value */
1356 BIO_free(s
->rrlnext
);
1358 X509_VERIFY_PARAM_free(s
->param
);
1359 dane_final(&s
->dane
);
1361 RECORD_LAYER_release(&s
->rlayer
);
1363 /* Ignore return value */
1364 ssl_free_wbio_buffer(s
);
1366 BIO_free_all(s
->wbio
);
1368 BIO_free_all(s
->rbio
);
1371 BUF_MEM_free(s
->init_buf
);
1373 /* add extra stuff */
1374 sk_SSL_CIPHER_free(s
->cipher_list
);
1375 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1376 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1377 sk_SSL_CIPHER_free(s
->peer_ciphers
);
1379 /* Make the next call work :-) */
1380 if (s
->session
!= NULL
) {
1381 ssl_clear_bad_session(s
);
1382 SSL_SESSION_free(s
->session
);
1384 SSL_SESSION_free(s
->psksession
);
1385 OPENSSL_free(s
->psksession_id
);
1389 ssl_cert_free(s
->cert
);
1390 OPENSSL_free(s
->shared_sigalgs
);
1391 /* Free up if allocated */
1393 OPENSSL_free(s
->ext
.hostname
);
1394 SSL_CTX_free(s
->session_ctx
);
1395 OPENSSL_free(s
->ext
.ecpointformats
);
1396 OPENSSL_free(s
->ext
.peer_ecpointformats
);
1397 OPENSSL_free(s
->ext
.supportedgroups
);
1398 OPENSSL_free(s
->ext
.peer_supportedgroups
);
1399 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1400 #ifndef OPENSSL_NO_OCSP
1401 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1403 #ifndef OPENSSL_NO_CT
1404 SCT_LIST_free(s
->scts
);
1405 OPENSSL_free(s
->ext
.scts
);
1407 OPENSSL_free(s
->ext
.ocsp
.resp
);
1408 OPENSSL_free(s
->ext
.alpn
);
1409 OPENSSL_free(s
->ext
.tls13_cookie
);
1410 if (s
->clienthello
!= NULL
)
1411 OPENSSL_free(s
->clienthello
->pre_proc_exts
);
1412 OPENSSL_free(s
->clienthello
);
1413 OPENSSL_free(s
->pha_context
);
1414 EVP_MD_CTX_free(s
->pha_dgst
);
1416 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1417 sk_X509_NAME_pop_free(s
->client_ca_names
, X509_NAME_free
);
1419 OSSL_STACK_OF_X509_free(s
->verified_chain
);
1421 if (ssl
->method
!= NULL
)
1422 ssl
->method
->ssl_deinit(ssl
);
1424 ASYNC_WAIT_CTX_free(s
->waitctx
);
1426 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1427 OPENSSL_free(s
->ext
.npn
);
1430 #ifndef OPENSSL_NO_SRTP
1431 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1435 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1437 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1442 BIO_free_all(sc
->rbio
);
1444 sc
->rrlmethod
->set1_bio(sc
->rrl
, sc
->rbio
);
1447 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1449 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1455 * If the output buffering BIO is still in place, remove it
1457 if (sc
->bbio
!= NULL
)
1458 sc
->wbio
= BIO_pop(sc
->wbio
);
1460 BIO_free_all(sc
->wbio
);
1463 /* Re-attach |bbio| to the new |wbio|. */
1464 if (sc
->bbio
!= NULL
)
1465 sc
->wbio
= BIO_push(sc
->bbio
, sc
->wbio
);
1468 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1471 * For historical reasons, this function has many different cases in
1472 * ownership handling.
1475 /* If nothing has changed, do nothing */
1476 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1480 * If the two arguments are equal then one fewer reference is granted by the
1481 * caller than we want to take
1483 if (rbio
!= NULL
&& rbio
== wbio
)
1487 * If only the wbio is changed only adopt one reference.
1489 if (rbio
== SSL_get_rbio(s
)) {
1490 SSL_set0_wbio(s
, wbio
);
1494 * There is an asymmetry here for historical reasons. If only the rbio is
1495 * changed AND the rbio and wbio were originally different, then we only
1496 * adopt one reference.
1498 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1499 SSL_set0_rbio(s
, rbio
);
1503 /* Otherwise, adopt both references. */
1504 SSL_set0_rbio(s
, rbio
);
1505 SSL_set0_wbio(s
, wbio
);
1508 BIO
*SSL_get_rbio(const SSL
*s
)
1510 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1518 BIO
*SSL_get_wbio(const SSL
*s
)
1520 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1525 if (sc
->bbio
!= NULL
) {
1527 * If |bbio| is active, the true caller-configured BIO is its
1530 return BIO_next(sc
->bbio
);
1535 int SSL_get_fd(const SSL
*s
)
1537 return SSL_get_rfd(s
);
1540 int SSL_get_rfd(const SSL
*s
)
1545 b
= SSL_get_rbio(s
);
1546 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1548 BIO_get_fd(r
, &ret
);
1552 int SSL_get_wfd(const SSL
*s
)
1557 b
= SSL_get_wbio(s
);
1558 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1560 BIO_get_fd(r
, &ret
);
1564 #ifndef OPENSSL_NO_SOCK
1565 int SSL_set_fd(SSL
*s
, int fd
)
1570 bio
= BIO_new(BIO_s_socket());
1573 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1576 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1577 SSL_set_bio(s
, bio
, bio
);
1578 #ifndef OPENSSL_NO_KTLS
1580 * The new socket is created successfully regardless of ktls_enable.
1581 * ktls_enable doesn't change any functionality of the socket, except
1582 * changing the setsockopt to enable the processing of ktls_start.
1583 * Thus, it is not a problem to call it for non-TLS sockets.
1586 #endif /* OPENSSL_NO_KTLS */
1592 int SSL_set_wfd(SSL
*s
, int fd
)
1594 BIO
*rbio
= SSL_get_rbio(s
);
1596 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1597 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1598 BIO
*bio
= BIO_new(BIO_s_socket());
1601 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1604 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1605 SSL_set0_wbio(s
, bio
);
1606 #ifndef OPENSSL_NO_KTLS
1608 * The new socket is created successfully regardless of ktls_enable.
1609 * ktls_enable doesn't change any functionality of the socket, except
1610 * changing the setsockopt to enable the processing of ktls_start.
1611 * Thus, it is not a problem to call it for non-TLS sockets.
1614 #endif /* OPENSSL_NO_KTLS */
1617 SSL_set0_wbio(s
, rbio
);
1622 int SSL_set_rfd(SSL
*s
, int fd
)
1624 BIO
*wbio
= SSL_get_wbio(s
);
1626 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1627 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1628 BIO
*bio
= BIO_new(BIO_s_socket());
1631 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1634 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1635 SSL_set0_rbio(s
, bio
);
1638 SSL_set0_rbio(s
, wbio
);
1645 /* return length of latest Finished message we sent, copy to 'buf' */
1646 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1649 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1654 ret
= sc
->s3
.tmp
.finish_md_len
;
1657 memcpy(buf
, sc
->s3
.tmp
.finish_md
, count
);
1661 /* return length of latest Finished message we expected, copy to 'buf' */
1662 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1665 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1670 ret
= sc
->s3
.tmp
.peer_finish_md_len
;
1673 memcpy(buf
, sc
->s3
.tmp
.peer_finish_md
, count
);
1677 int SSL_get_verify_mode(const SSL
*s
)
1679 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1684 return sc
->verify_mode
;
1687 int SSL_get_verify_depth(const SSL
*s
)
1689 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1694 return X509_VERIFY_PARAM_get_depth(sc
->param
);
1697 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1698 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1703 return sc
->verify_callback
;
1706 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1708 return ctx
->verify_mode
;
1711 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1713 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1716 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1717 return ctx
->default_verify_callback
;
1720 void SSL_set_verify(SSL
*s
, int mode
,
1721 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1723 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1728 sc
->verify_mode
= mode
;
1729 if (callback
!= NULL
)
1730 sc
->verify_callback
= callback
;
1733 void SSL_set_verify_depth(SSL
*s
, int depth
)
1735 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1740 X509_VERIFY_PARAM_set_depth(sc
->param
, depth
);
1743 void SSL_set_read_ahead(SSL
*s
, int yes
)
1745 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1750 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, yes
);
1753 int SSL_get_read_ahead(const SSL
*s
)
1755 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1760 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
1763 int SSL_pending(const SSL
*s
)
1765 size_t pending
= s
->method
->ssl_pending(s
);
1768 * SSL_pending cannot work properly if read-ahead is enabled
1769 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1770 * impossible to fix since SSL_pending cannot report errors that may be
1771 * observed while scanning the new data. (Note that SSL_pending() is
1772 * often used as a boolean value, so we'd better not return -1.)
1774 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1775 * we just return INT_MAX.
1777 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1780 int SSL_has_pending(const SSL
*s
)
1783 * Similar to SSL_pending() but returns a 1 to indicate that we have
1784 * processed or unprocessed data available or 0 otherwise (as opposed to the
1785 * number of bytes available). Unlike SSL_pending() this will take into
1786 * account read_ahead data. A 1 return simply indicates that we have data.
1787 * That data may not result in any application data, or we may fail to parse
1788 * the records for some reason.
1790 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1792 /* Check buffered app data if any first */
1793 if (SSL_CONNECTION_IS_DTLS(sc
)) {
1794 DTLS1_RECORD_DATA
*rdata
;
1797 iter
= pqueue_iterator(sc
->rlayer
.d
->buffered_app_data
.q
);
1798 while ((item
= pqueue_next(&iter
)) != NULL
) {
1800 if (rdata
->rrec
.length
> 0)
1805 if (RECORD_LAYER_processed_read_pending(&sc
->rlayer
))
1808 return RECORD_LAYER_read_pending(&sc
->rlayer
);
1811 X509
*SSL_get1_peer_certificate(const SSL
*s
)
1813 X509
*r
= SSL_get0_peer_certificate(s
);
1821 X509
*SSL_get0_peer_certificate(const SSL
*s
)
1823 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1828 if (sc
->session
== NULL
)
1831 return sc
->session
->peer
;
1834 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1837 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1842 if (sc
->session
== NULL
)
1845 r
= sc
->session
->peer_chain
;
1848 * If we are a client, cert_chain includes the peer's own certificate; if
1849 * we are a server, it does not.
1856 * Now in theory, since the calling process own 't' it should be safe to
1857 * modify. We need to be able to read f without being hassled
1859 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1862 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1863 SSL_CONNECTION
*tsc
= SSL_CONNECTION_FROM_SSL_ONLY(t
);
1864 const SSL_CONNECTION
*fsc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(f
);
1866 if (tsc
== NULL
|| fsc
== NULL
)
1869 /* Do we need to do SSL locking? */
1870 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1875 * what if we are setup for one protocol version but want to talk another
1877 if (t
->method
!= f
->method
) {
1878 t
->method
->ssl_deinit(t
);
1879 t
->method
= f
->method
;
1880 if (t
->method
->ssl_init(t
) == 0)
1884 CRYPTO_UP_REF(&fsc
->cert
->references
, &i
, fsc
->cert
->lock
);
1885 ssl_cert_free(tsc
->cert
);
1886 tsc
->cert
= fsc
->cert
;
1887 if (!SSL_set_session_id_context(t
, fsc
->sid_ctx
, (int)fsc
->sid_ctx_length
)) {
1894 /* Fix this so it checks all the valid key/cert options */
1895 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1897 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1898 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1901 if (ctx
->cert
->key
->privatekey
== NULL
) {
1902 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1905 return X509_check_private_key
1906 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1909 /* Fix this function so that it takes an optional type parameter */
1910 int SSL_check_private_key(const SSL
*ssl
)
1912 const SSL_CONNECTION
*sc
;
1914 if ((sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
)) == NULL
) {
1915 ERR_raise(ERR_LIB_SSL
, ERR_R_PASSED_NULL_PARAMETER
);
1918 if (sc
->cert
->key
->x509
== NULL
) {
1919 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1922 if (sc
->cert
->key
->privatekey
== NULL
) {
1923 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1926 return X509_check_private_key(sc
->cert
->key
->x509
,
1927 sc
->cert
->key
->privatekey
);
1930 int SSL_waiting_for_async(SSL
*s
)
1932 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1943 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1945 ASYNC_WAIT_CTX
*ctx
;
1946 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1951 if ((ctx
= sc
->waitctx
) == NULL
)
1953 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1956 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1957 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1959 ASYNC_WAIT_CTX
*ctx
;
1960 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1965 if ((ctx
= sc
->waitctx
) == NULL
)
1967 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1971 int SSL_CTX_set_async_callback(SSL_CTX
*ctx
, SSL_async_callback_fn callback
)
1973 ctx
->async_cb
= callback
;
1977 int SSL_CTX_set_async_callback_arg(SSL_CTX
*ctx
, void *arg
)
1979 ctx
->async_cb_arg
= arg
;
1983 int SSL_set_async_callback(SSL
*s
, SSL_async_callback_fn callback
)
1985 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1990 sc
->async_cb
= callback
;
1994 int SSL_set_async_callback_arg(SSL
*s
, void *arg
)
1996 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2001 sc
->async_cb_arg
= arg
;
2005 int SSL_get_async_status(SSL
*s
, int *status
)
2007 ASYNC_WAIT_CTX
*ctx
;
2008 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2013 if ((ctx
= sc
->waitctx
) == NULL
)
2015 *status
= ASYNC_WAIT_CTX_get_status(ctx
);
2019 int SSL_accept(SSL
*s
)
2021 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2026 if (sc
->handshake_func
== NULL
) {
2027 /* Not properly initialized yet */
2028 SSL_set_accept_state(s
);
2031 return SSL_do_handshake(s
);
2034 int SSL_connect(SSL
*s
)
2036 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2041 if (sc
->handshake_func
== NULL
) {
2042 /* Not properly initialized yet */
2043 SSL_set_connect_state(s
);
2046 return SSL_do_handshake(s
);
2049 long SSL_get_default_timeout(const SSL
*s
)
2051 return s
->method
->get_timeout();
2054 static int ssl_async_wait_ctx_cb(void *arg
)
2056 SSL
*s
= (SSL
*)arg
;
2057 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2062 return sc
->async_cb(s
, sc
->async_cb_arg
);
2065 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
2066 int (*func
) (void *))
2069 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2074 if (sc
->waitctx
== NULL
) {
2075 sc
->waitctx
= ASYNC_WAIT_CTX_new();
2076 if (sc
->waitctx
== NULL
)
2078 if (sc
->async_cb
!= NULL
2079 && !ASYNC_WAIT_CTX_set_callback
2080 (sc
->waitctx
, ssl_async_wait_ctx_cb
, s
))
2084 sc
->rwstate
= SSL_NOTHING
;
2085 switch (ASYNC_start_job(&sc
->job
, sc
->waitctx
, &ret
, func
, args
,
2086 sizeof(struct ssl_async_args
))) {
2088 sc
->rwstate
= SSL_NOTHING
;
2089 ERR_raise(ERR_LIB_SSL
, SSL_R_FAILED_TO_INIT_ASYNC
);
2092 sc
->rwstate
= SSL_ASYNC_PAUSED
;
2095 sc
->rwstate
= SSL_ASYNC_NO_JOBS
;
2101 sc
->rwstate
= SSL_NOTHING
;
2102 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
2103 /* Shouldn't happen */
2108 static int ssl_io_intern(void *vargs
)
2110 struct ssl_async_args
*args
;
2116 args
= (struct ssl_async_args
*)vargs
;
2120 if ((sc
= SSL_CONNECTION_FROM_SSL(s
)) == NULL
)
2123 switch (args
->type
) {
2125 return args
->f
.func_read(s
, buf
, num
, &sc
->asyncrw
);
2127 return args
->f
.func_write(s
, buf
, num
, &sc
->asyncrw
);
2129 return args
->f
.func_other(s
);
2134 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2136 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2141 if (sc
->handshake_func
== NULL
) {
2142 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2146 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2147 sc
->rwstate
= SSL_NOTHING
;
2151 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2152 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
2153 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2157 * If we are a client and haven't received the ServerHello etc then we
2160 ossl_statem_check_finish_init(sc
, 0);
2162 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2163 struct ssl_async_args args
;
2169 args
.type
= READFUNC
;
2170 args
.f
.func_read
= s
->method
->ssl_read
;
2172 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2173 *readbytes
= sc
->asyncrw
;
2176 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
2180 int SSL_read(SSL
*s
, void *buf
, int num
)
2186 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2190 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
2193 * The cast is safe here because ret should be <= INT_MAX because num is
2197 ret
= (int)readbytes
;
2202 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2204 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
2211 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2214 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2216 /* TODO(QUIC): This will need special handling for QUIC */
2221 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2222 return SSL_READ_EARLY_DATA_ERROR
;
2225 switch (sc
->early_data_state
) {
2226 case SSL_EARLY_DATA_NONE
:
2227 if (!SSL_in_before(s
)) {
2228 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2229 return SSL_READ_EARLY_DATA_ERROR
;
2233 case SSL_EARLY_DATA_ACCEPT_RETRY
:
2234 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
2235 ret
= SSL_accept(s
);
2238 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
2239 return SSL_READ_EARLY_DATA_ERROR
;
2243 case SSL_EARLY_DATA_READ_RETRY
:
2244 if (sc
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
2245 sc
->early_data_state
= SSL_EARLY_DATA_READING
;
2246 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
2248 * State machine will update early_data_state to
2249 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2252 if (ret
> 0 || (ret
<= 0 && sc
->early_data_state
2253 != SSL_EARLY_DATA_FINISHED_READING
)) {
2254 sc
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
2255 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
2256 : SSL_READ_EARLY_DATA_ERROR
;
2259 sc
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
2262 return SSL_READ_EARLY_DATA_FINISH
;
2265 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2266 return SSL_READ_EARLY_DATA_ERROR
;
2270 int SSL_get_early_data_status(const SSL
*s
)
2272 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
2274 /* TODO(QUIC): This will need special handling for QUIC */
2278 return sc
->ext
.early_data
;
2281 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2283 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2288 if (sc
->handshake_func
== NULL
) {
2289 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2293 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2296 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2297 struct ssl_async_args args
;
2303 args
.type
= READFUNC
;
2304 args
.f
.func_read
= s
->method
->ssl_peek
;
2306 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2307 *readbytes
= sc
->asyncrw
;
2310 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
2314 int SSL_peek(SSL
*s
, void *buf
, int num
)
2320 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2324 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
2327 * The cast is safe here because ret should be <= INT_MAX because num is
2331 ret
= (int)readbytes
;
2337 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2339 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
2346 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2348 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2353 if (sc
->handshake_func
== NULL
) {
2354 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2358 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2359 sc
->rwstate
= SSL_NOTHING
;
2360 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2364 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2365 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
2366 || sc
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
2367 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2370 /* If we are a client and haven't sent the Finished we better do that */
2371 ossl_statem_check_finish_init(sc
, 1);
2373 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2375 struct ssl_async_args args
;
2378 args
.buf
= (void *)buf
;
2380 args
.type
= WRITEFUNC
;
2381 args
.f
.func_write
= s
->method
->ssl_write
;
2383 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2384 *written
= sc
->asyncrw
;
2387 return s
->method
->ssl_write(s
, buf
, num
, written
);
2391 ossl_ssize_t
SSL_sendfile(SSL
*s
, int fd
, off_t offset
, size_t size
, int flags
)
2394 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2399 if (sc
->handshake_func
== NULL
) {
2400 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2404 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2405 sc
->rwstate
= SSL_NOTHING
;
2406 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2410 if (!BIO_get_ktls_send(sc
->wbio
)) {
2411 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2415 /* If we have an alert to send, lets send it */
2416 if (sc
->s3
.alert_dispatch
) {
2417 ret
= (ossl_ssize_t
)s
->method
->ssl_dispatch_alert(s
);
2419 /* SSLfatal() already called if appropriate */
2422 /* if it went, fall through and send more stuff */
2425 sc
->rwstate
= SSL_WRITING
;
2426 if (BIO_flush(sc
->wbio
) <= 0) {
2427 if (!BIO_should_retry(sc
->wbio
)) {
2428 sc
->rwstate
= SSL_NOTHING
;
2431 set_sys_error(EAGAIN
);
2437 #ifdef OPENSSL_NO_KTLS
2438 ERR_raise_data(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
,
2439 "can't call ktls_sendfile(), ktls disabled");
2442 ret
= ktls_sendfile(SSL_get_wfd(s
), fd
, offset
, size
, flags
);
2444 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2445 if ((get_last_sys_error() == EAGAIN
) ||
2446 (get_last_sys_error() == EINTR
) ||
2447 (get_last_sys_error() == EBUSY
))
2448 BIO_set_retry_write(sc
->wbio
);
2451 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2454 sc
->rwstate
= SSL_NOTHING
;
2459 int SSL_write(SSL
*s
, const void *buf
, int num
)
2465 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2469 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
2472 * The cast is safe here because ret should be <= INT_MAX because num is
2481 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2483 int ret
= ssl_write_internal(s
, buf
, num
, written
);
2490 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2492 int ret
, early_data_state
;
2494 uint32_t partialwrite
;
2495 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2497 /* TODO(QUIC): This will need special handling for QUIC */
2501 switch (sc
->early_data_state
) {
2502 case SSL_EARLY_DATA_NONE
:
2504 || !SSL_in_before(s
)
2505 || ((sc
->session
== NULL
|| sc
->session
->ext
.max_early_data
== 0)
2506 && (sc
->psk_use_session_cb
== NULL
))) {
2507 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2512 case SSL_EARLY_DATA_CONNECT_RETRY
:
2513 sc
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2514 ret
= SSL_connect(s
);
2517 sc
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2522 case SSL_EARLY_DATA_WRITE_RETRY
:
2523 sc
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2525 * We disable partial write for early data because we don't keep track
2526 * of how many bytes we've written between the SSL_write_ex() call and
2527 * the flush if the flush needs to be retried)
2529 partialwrite
= sc
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2530 sc
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2531 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2532 sc
->mode
|= partialwrite
;
2534 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2537 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2540 case SSL_EARLY_DATA_WRITE_FLUSH
:
2541 /* The buffering BIO is still in place so we need to flush it */
2542 if (statem_flush(sc
) != 1)
2545 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2548 case SSL_EARLY_DATA_FINISHED_READING
:
2549 case SSL_EARLY_DATA_READ_RETRY
:
2550 early_data_state
= sc
->early_data_state
;
2551 /* We are a server writing to an unauthenticated client */
2552 sc
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2553 ret
= SSL_write_ex(s
, buf
, num
, written
);
2554 /* The buffering BIO is still in place */
2556 (void)BIO_flush(sc
->wbio
);
2557 sc
->early_data_state
= early_data_state
;
2561 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2566 int SSL_shutdown(SSL
*s
)
2569 * Note that this function behaves differently from what one might
2570 * expect. Return values are 0 for no success (yet), 1 for success; but
2571 * calling it once is usually not enough, even if blocking I/O is used
2572 * (see ssl3_shutdown).
2574 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2579 if (sc
->handshake_func
== NULL
) {
2580 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2584 if (!SSL_in_init(s
)) {
2585 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2586 struct ssl_async_args args
;
2588 memset(&args
, 0, sizeof(args
));
2590 args
.type
= OTHERFUNC
;
2591 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2593 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2595 return s
->method
->ssl_shutdown(s
);
2598 ERR_raise(ERR_LIB_SSL
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2603 int SSL_key_update(SSL
*s
, int updatetype
)
2605 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2610 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
2611 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2615 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2616 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2617 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2621 if (!SSL_is_init_finished(s
)) {
2622 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
2626 if (RECORD_LAYER_write_pending(&sc
->rlayer
)) {
2627 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_WRITE_RETRY
);
2631 ossl_statem_set_in_init(sc
, 1);
2632 sc
->key_update
= updatetype
;
2636 int SSL_get_key_update_type(const SSL
*s
)
2638 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
2643 return sc
->key_update
;
2647 * Can we accept a renegotiation request? If yes, set the flag and
2648 * return 1 if yes. If not, raise error and return 0.
2650 static int can_renegotiate(const SSL_CONNECTION
*sc
)
2652 if (SSL_CONNECTION_IS_TLS13(sc
)) {
2653 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2657 if ((sc
->options
& SSL_OP_NO_RENEGOTIATION
) != 0) {
2658 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_RENEGOTIATION
);
2665 int SSL_renegotiate(SSL
*s
)
2667 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2672 if (!can_renegotiate(sc
))
2675 sc
->renegotiate
= 1;
2676 sc
->new_session
= 1;
2677 return s
->method
->ssl_renegotiate(s
);
2680 int SSL_renegotiate_abbreviated(SSL
*s
)
2682 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2687 if (!can_renegotiate(sc
))
2690 sc
->renegotiate
= 1;
2691 sc
->new_session
= 0;
2692 return s
->method
->ssl_renegotiate(s
);
2695 int SSL_renegotiate_pending(const SSL
*s
)
2697 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2703 * becomes true when negotiation is requested; false again once a
2704 * handshake has finished
2706 return (sc
->renegotiate
!= 0);
2709 int SSL_new_session_ticket(SSL
*s
)
2711 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2716 /* If we are in init because we're sending tickets, okay to send more. */
2717 if ((SSL_in_init(s
) && sc
->ext
.extra_tickets_expected
== 0)
2718 || SSL_IS_FIRST_HANDSHAKE(sc
) || !sc
->server
2719 || !SSL_CONNECTION_IS_TLS13(sc
))
2721 sc
->ext
.extra_tickets_expected
++;
2722 if (!RECORD_LAYER_write_pending(&sc
->rlayer
) && !SSL_in_init(s
))
2723 ossl_statem_set_in_init(sc
, 1);
2727 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2730 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2732 /* TODO(QUIC): Special handling for some ctrls will be needed */
2737 case SSL_CTRL_GET_READ_AHEAD
:
2738 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2739 case SSL_CTRL_SET_READ_AHEAD
:
2740 l
= RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2741 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, larg
);
2744 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2745 sc
->msg_callback_arg
= parg
;
2749 return (sc
->mode
|= larg
);
2750 case SSL_CTRL_CLEAR_MODE
:
2751 return (sc
->mode
&= ~larg
);
2752 case SSL_CTRL_GET_MAX_CERT_LIST
:
2753 return (long)sc
->max_cert_list
;
2754 case SSL_CTRL_SET_MAX_CERT_LIST
:
2757 l
= (long)sc
->max_cert_list
;
2758 sc
->max_cert_list
= (size_t)larg
;
2760 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2761 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2763 #ifndef OPENSSL_NO_KTLS
2764 if (sc
->wbio
!= NULL
&& BIO_get_ktls_send(sc
->wbio
))
2766 #endif /* OPENSSL_NO_KTLS */
2767 sc
->max_send_fragment
= larg
;
2768 if (sc
->max_send_fragment
< sc
->split_send_fragment
)
2769 sc
->split_send_fragment
= sc
->max_send_fragment
;
2771 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2772 if ((size_t)larg
> sc
->max_send_fragment
|| larg
== 0)
2774 sc
->split_send_fragment
= larg
;
2776 case SSL_CTRL_SET_MAX_PIPELINES
:
2777 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2779 sc
->max_pipelines
= larg
;
2780 if (sc
->rrlmethod
->set_max_pipelines
!= NULL
)
2781 sc
->rrlmethod
->set_max_pipelines(sc
->rrl
, (size_t)larg
);
2783 case SSL_CTRL_GET_RI_SUPPORT
:
2784 return sc
->s3
.send_connection_binding
;
2785 case SSL_CTRL_SET_RETRY_VERIFY
:
2786 sc
->rwstate
= SSL_RETRY_VERIFY
;
2788 case SSL_CTRL_CERT_FLAGS
:
2789 return (sc
->cert
->cert_flags
|= larg
);
2790 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2791 return (sc
->cert
->cert_flags
&= ~larg
);
2793 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2795 if (sc
->s3
.tmp
.ciphers_raw
== NULL
)
2797 *(unsigned char **)parg
= sc
->s3
.tmp
.ciphers_raw
;
2798 return (int)sc
->s3
.tmp
.ciphers_rawlen
;
2800 return TLS_CIPHER_LEN
;
2802 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2803 if (!sc
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(sc
))
2805 if (sc
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2809 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2810 return ssl_check_allowed_versions(larg
, sc
->max_proto_version
)
2811 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2812 &sc
->min_proto_version
);
2813 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2814 return sc
->min_proto_version
;
2815 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2816 return ssl_check_allowed_versions(sc
->min_proto_version
, larg
)
2817 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2818 &sc
->max_proto_version
);
2819 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2820 return sc
->max_proto_version
;
2822 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2826 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2828 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2834 case SSL_CTRL_SET_MSG_CALLBACK
:
2835 sc
->msg_callback
= (void (*)
2836 (int write_p
, int version
, int content_type
,
2837 const void *buf
, size_t len
, SSL
*ssl
,
2842 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2846 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2848 return ctx
->sessions
;
2851 static int ssl_tsan_load(SSL_CTX
*ctx
, TSAN_QUALIFIER
int *stat
)
2855 if (ssl_tsan_lock(ctx
)) {
2856 res
= tsan_load(stat
);
2857 ssl_tsan_unlock(ctx
);
2862 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2865 /* For some cases with ctx == NULL perform syntax checks */
2868 case SSL_CTRL_SET_GROUPS_LIST
:
2869 return tls1_set_groups_list(ctx
, NULL
, NULL
, parg
);
2870 case SSL_CTRL_SET_SIGALGS_LIST
:
2871 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2872 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2879 case SSL_CTRL_GET_READ_AHEAD
:
2880 return ctx
->read_ahead
;
2881 case SSL_CTRL_SET_READ_AHEAD
:
2882 l
= ctx
->read_ahead
;
2883 ctx
->read_ahead
= larg
;
2886 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2887 ctx
->msg_callback_arg
= parg
;
2890 case SSL_CTRL_GET_MAX_CERT_LIST
:
2891 return (long)ctx
->max_cert_list
;
2892 case SSL_CTRL_SET_MAX_CERT_LIST
:
2895 l
= (long)ctx
->max_cert_list
;
2896 ctx
->max_cert_list
= (size_t)larg
;
2899 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2902 l
= (long)ctx
->session_cache_size
;
2903 ctx
->session_cache_size
= (size_t)larg
;
2905 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2906 return (long)ctx
->session_cache_size
;
2907 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2908 l
= ctx
->session_cache_mode
;
2909 ctx
->session_cache_mode
= larg
;
2911 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2912 return ctx
->session_cache_mode
;
2914 case SSL_CTRL_SESS_NUMBER
:
2915 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2916 case SSL_CTRL_SESS_CONNECT
:
2917 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect
);
2918 case SSL_CTRL_SESS_CONNECT_GOOD
:
2919 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_good
);
2920 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2921 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_renegotiate
);
2922 case SSL_CTRL_SESS_ACCEPT
:
2923 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept
);
2924 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2925 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_good
);
2926 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2927 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_renegotiate
);
2928 case SSL_CTRL_SESS_HIT
:
2929 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_hit
);
2930 case SSL_CTRL_SESS_CB_HIT
:
2931 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cb_hit
);
2932 case SSL_CTRL_SESS_MISSES
:
2933 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_miss
);
2934 case SSL_CTRL_SESS_TIMEOUTS
:
2935 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_timeout
);
2936 case SSL_CTRL_SESS_CACHE_FULL
:
2937 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cache_full
);
2939 return (ctx
->mode
|= larg
);
2940 case SSL_CTRL_CLEAR_MODE
:
2941 return (ctx
->mode
&= ~larg
);
2942 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2943 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2945 ctx
->max_send_fragment
= larg
;
2946 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2947 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2949 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2950 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2952 ctx
->split_send_fragment
= larg
;
2954 case SSL_CTRL_SET_MAX_PIPELINES
:
2955 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2957 ctx
->max_pipelines
= larg
;
2959 case SSL_CTRL_CERT_FLAGS
:
2960 return (ctx
->cert
->cert_flags
|= larg
);
2961 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2962 return (ctx
->cert
->cert_flags
&= ~larg
);
2963 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2964 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2965 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2966 &ctx
->min_proto_version
);
2967 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2968 return ctx
->min_proto_version
;
2969 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2970 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2971 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2972 &ctx
->max_proto_version
);
2973 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2974 return ctx
->max_proto_version
;
2976 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2980 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2983 case SSL_CTRL_SET_MSG_CALLBACK
:
2984 ctx
->msg_callback
= (void (*)
2985 (int write_p
, int version
, int content_type
,
2986 const void *buf
, size_t len
, SSL
*ssl
,
2991 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2995 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
3004 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
3005 const SSL_CIPHER
*const *bp
)
3007 if ((*ap
)->id
> (*bp
)->id
)
3009 if ((*ap
)->id
< (*bp
)->id
)
3015 * return a STACK of the ciphers available for the SSL and in order of
3018 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
3020 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3023 if (sc
->cipher_list
!= NULL
) {
3024 return sc
->cipher_list
;
3025 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
3026 return s
->ctx
->cipher_list
;
3032 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
3034 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3036 if (sc
== NULL
|| !sc
->server
)
3038 return sc
->peer_ciphers
;
3041 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
3043 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
3045 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3050 ciphers
= SSL_get_ciphers(s
);
3053 if (!ssl_set_client_disabled(sc
))
3055 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
3056 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
3057 if (!ssl_cipher_disabled(sc
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
3059 sk
= sk_SSL_CIPHER_new_null();
3062 if (!sk_SSL_CIPHER_push(sk
, c
)) {
3063 sk_SSL_CIPHER_free(sk
);
3071 /** return a STACK of the ciphers available for the SSL and in order of
3073 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL_CONNECTION
*s
)
3076 if (s
->cipher_list_by_id
!= NULL
)
3077 return s
->cipher_list_by_id
;
3078 else if (s
->ssl
.ctx
!= NULL
3079 && s
->ssl
.ctx
->cipher_list_by_id
!= NULL
)
3080 return s
->ssl
.ctx
->cipher_list_by_id
;
3085 /** The old interface to get the same thing as SSL_get_ciphers() */
3086 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
3088 const SSL_CIPHER
*c
;
3089 STACK_OF(SSL_CIPHER
) *sk
;
3093 sk
= SSL_get_ciphers(s
);
3094 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
3096 c
= sk_SSL_CIPHER_value(sk
, n
);
3102 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3104 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
3107 return ctx
->cipher_list
;
3112 * Distinguish between ciphers controlled by set_ciphersuite() and
3113 * set_cipher_list() when counting.
3115 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER
) *sk
)
3118 const SSL_CIPHER
*c
;
3122 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); ++i
) {
3123 c
= sk_SSL_CIPHER_value(sk
, i
);
3124 if (c
->min_tls
>= TLS1_3_VERSION
)
3131 /** specify the ciphers to be used by default by the SSL_CTX */
3132 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
3134 STACK_OF(SSL_CIPHER
) *sk
;
3136 sk
= ssl_create_cipher_list(ctx
, ctx
->tls13_ciphersuites
,
3137 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
3140 * ssl_create_cipher_list may return an empty stack if it was unable to
3141 * find a cipher matching the given rule string (for example if the rule
3142 * string specifies a cipher which has been disabled). This is not an
3143 * error as far as ssl_create_cipher_list is concerned, and hence
3144 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3148 else if (cipher_list_tls12_num(sk
) == 0) {
3149 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3155 /** specify the ciphers to be used by the SSL */
3156 int SSL_set_cipher_list(SSL
*s
, const char *str
)
3158 STACK_OF(SSL_CIPHER
) *sk
;
3159 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3164 sk
= ssl_create_cipher_list(s
->ctx
, sc
->tls13_ciphersuites
,
3165 &sc
->cipher_list
, &sc
->cipher_list_by_id
, str
,
3167 /* see comment in SSL_CTX_set_cipher_list */
3170 else if (cipher_list_tls12_num(sk
) == 0) {
3171 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3177 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
3180 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
3181 const SSL_CIPHER
*c
;
3183 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3189 || sc
->peer_ciphers
== NULL
3194 clntsk
= sc
->peer_ciphers
;
3195 srvrsk
= SSL_get_ciphers(s
);
3196 if (clntsk
== NULL
|| srvrsk
== NULL
)
3199 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
3202 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
3205 c
= sk_SSL_CIPHER_value(clntsk
, i
);
3206 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
3209 n
= strlen(c
->name
);
3226 * Return the requested servername (SNI) value. Note that the behaviour varies
3228 * - whether this is called by the client or the server,
3229 * - if we are before or during/after the handshake,
3230 * - if a resumption or normal handshake is being attempted/has occurred
3231 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3233 * Note that only the host_name type is defined (RFC 3546).
3235 const char *SSL_get_servername(const SSL
*s
, const int type
)
3237 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3244 * If we don't know if we are the client or the server yet then we assume
3247 server
= sc
->handshake_func
== NULL
? 0 : sc
->server
;
3249 if (type
!= TLSEXT_NAMETYPE_host_name
)
3255 * In TLSv1.3 on the server SNI is not associated with the session
3256 * but in TLSv1.2 or below it is.
3258 * Before the handshake:
3261 * During/after the handshake (TLSv1.2 or below resumption occurred):
3262 * - If a servername was accepted by the server in the original
3263 * handshake then it will return that servername, or NULL otherwise.
3265 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3266 * - The function will return the servername requested by the client in
3267 * this handshake or NULL if none was requested.
3269 if (sc
->hit
&& !SSL_CONNECTION_IS_TLS13(sc
))
3270 return sc
->session
->ext
.hostname
;
3275 * Before the handshake:
3276 * - If a servername has been set via a call to
3277 * SSL_set_tlsext_host_name() then it will return that servername
3278 * - If one has not been set, but a TLSv1.2 resumption is being
3279 * attempted and the session from the original handshake had a
3280 * servername accepted by the server then it will return that
3282 * - Otherwise it returns NULL
3284 * During/after the handshake (TLSv1.2 or below resumption occurred):
3285 * - If the session from the original handshake had a servername accepted
3286 * by the server then it will return that servername.
3287 * - Otherwise it returns the servername set via
3288 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3290 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3291 * - It will return the servername set via SSL_set_tlsext_host_name()
3292 * (or NULL if it was not called).
3294 if (SSL_in_before(s
)) {
3295 if (sc
->ext
.hostname
== NULL
3296 && sc
->session
!= NULL
3297 && sc
->session
->ssl_version
!= TLS1_3_VERSION
)
3298 return sc
->session
->ext
.hostname
;
3300 if (!SSL_CONNECTION_IS_TLS13(sc
) && sc
->hit
3301 && sc
->session
->ext
.hostname
!= NULL
)
3302 return sc
->session
->ext
.hostname
;
3306 return sc
->ext
.hostname
;
3309 int SSL_get_servername_type(const SSL
*s
)
3311 if (SSL_get_servername(s
, TLSEXT_NAMETYPE_host_name
) != NULL
)
3312 return TLSEXT_NAMETYPE_host_name
;
3317 * SSL_select_next_proto implements the standard protocol selection. It is
3318 * expected that this function is called from the callback set by
3319 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3320 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3321 * not included in the length. A byte string of length 0 is invalid. No byte
3322 * string may be truncated. The current, but experimental algorithm for
3323 * selecting the protocol is: 1) If the server doesn't support NPN then this
3324 * is indicated to the callback. In this case, the client application has to
3325 * abort the connection or have a default application level protocol. 2) If
3326 * the server supports NPN, but advertises an empty list then the client
3327 * selects the first protocol in its list, but indicates via the API that this
3328 * fallback case was enacted. 3) Otherwise, the client finds the first
3329 * protocol in the server's list that it supports and selects this protocol.
3330 * This is because it's assumed that the server has better information about
3331 * which protocol a client should use. 4) If the client doesn't support any
3332 * of the server's advertised protocols, then this is treated the same as
3333 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3334 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3336 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
3337 const unsigned char *server
,
3338 unsigned int server_len
,
3339 const unsigned char *client
, unsigned int client_len
)
3342 const unsigned char *result
;
3343 int status
= OPENSSL_NPN_UNSUPPORTED
;
3346 * For each protocol in server preference order, see if we support it.
3348 for (i
= 0; i
< server_len
;) {
3349 for (j
= 0; j
< client_len
;) {
3350 if (server
[i
] == client
[j
] &&
3351 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
3352 /* We found a match */
3353 result
= &server
[i
];
3354 status
= OPENSSL_NPN_NEGOTIATED
;
3364 /* There's no overlap between our protocols and the server's list. */
3366 status
= OPENSSL_NPN_NO_OVERLAP
;
3369 *out
= (unsigned char *)result
+ 1;
3370 *outlen
= result
[0];
3374 #ifndef OPENSSL_NO_NEXTPROTONEG
3376 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3377 * client's requested protocol for this connection and returns 0. If the
3378 * client didn't request any protocol, then *data is set to NULL. Note that
3379 * the client can request any protocol it chooses. The value returned from
3380 * this function need not be a member of the list of supported protocols
3381 * provided by the callback.
3383 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
3386 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3389 /* We have no other way to indicate error */
3395 *data
= sc
->ext
.npn
;
3396 if (*data
== NULL
) {
3399 *len
= (unsigned int)sc
->ext
.npn_len
;
3404 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3405 * a TLS server needs a list of supported protocols for Next Protocol
3406 * Negotiation. The returned list must be in wire format. The list is
3407 * returned by setting |out| to point to it and |outlen| to its length. This
3408 * memory will not be modified, but one should assume that the SSL* keeps a
3409 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3410 * wishes to advertise. Otherwise, no such extension will be included in the
3413 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
3414 SSL_CTX_npn_advertised_cb_func cb
,
3417 ctx
->ext
.npn_advertised_cb
= cb
;
3418 ctx
->ext
.npn_advertised_cb_arg
= arg
;
3422 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3423 * client needs to select a protocol from the server's provided list. |out|
3424 * must be set to point to the selected protocol (which may be within |in|).
3425 * The length of the protocol name must be written into |outlen|. The
3426 * server's advertised protocols are provided in |in| and |inlen|. The
3427 * callback can assume that |in| is syntactically valid. The client must
3428 * select a protocol. It is fatal to the connection if this callback returns
3429 * a value other than SSL_TLSEXT_ERR_OK.
3431 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
3432 SSL_CTX_npn_select_cb_func cb
,
3435 ctx
->ext
.npn_select_cb
= cb
;
3436 ctx
->ext
.npn_select_cb_arg
= arg
;
3440 static int alpn_value_ok(const unsigned char *protos
, unsigned int protos_len
)
3444 if (protos_len
< 2 || protos
== NULL
)
3447 for (idx
= 0; idx
< protos_len
; idx
+= protos
[idx
] + 1) {
3448 if (protos
[idx
] == 0)
3451 return idx
== protos_len
;
3454 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3455 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3456 * length-prefixed strings). Returns 0 on success.
3458 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
3459 unsigned int protos_len
)
3461 unsigned char *alpn
;
3463 if (protos_len
== 0 || protos
== NULL
) {
3464 OPENSSL_free(ctx
->ext
.alpn
);
3465 ctx
->ext
.alpn
= NULL
;
3466 ctx
->ext
.alpn_len
= 0;
3469 /* Not valid per RFC */
3470 if (!alpn_value_ok(protos
, protos_len
))
3473 alpn
= OPENSSL_memdup(protos
, protos_len
);
3475 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3478 OPENSSL_free(ctx
->ext
.alpn
);
3479 ctx
->ext
.alpn
= alpn
;
3480 ctx
->ext
.alpn_len
= protos_len
;
3486 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3487 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3488 * length-prefixed strings). Returns 0 on success.
3490 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
3491 unsigned int protos_len
)
3493 unsigned char *alpn
;
3494 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
3499 if (protos_len
== 0 || protos
== NULL
) {
3500 OPENSSL_free(sc
->ext
.alpn
);
3501 sc
->ext
.alpn
= NULL
;
3502 sc
->ext
.alpn_len
= 0;
3505 /* Not valid per RFC */
3506 if (!alpn_value_ok(protos
, protos_len
))
3509 alpn
= OPENSSL_memdup(protos
, protos_len
);
3511 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3514 OPENSSL_free(sc
->ext
.alpn
);
3515 sc
->ext
.alpn
= alpn
;
3516 sc
->ext
.alpn_len
= protos_len
;
3522 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3523 * called during ClientHello processing in order to select an ALPN protocol
3524 * from the client's list of offered protocols.
3526 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
3527 SSL_CTX_alpn_select_cb_func cb
,
3530 ctx
->ext
.alpn_select_cb
= cb
;
3531 ctx
->ext
.alpn_select_cb_arg
= arg
;
3535 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3536 * On return it sets |*data| to point to |*len| bytes of protocol name
3537 * (not including the leading length-prefix byte). If the server didn't
3538 * respond with a negotiated protocol then |*len| will be zero.
3540 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
3543 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
3546 /* We have no other way to indicate error */
3552 *data
= sc
->s3
.alpn_selected
;
3556 *len
= (unsigned int)sc
->s3
.alpn_selected_len
;
3559 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
3560 const char *label
, size_t llen
,
3561 const unsigned char *context
, size_t contextlen
,
3564 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3569 if (sc
->session
== NULL
3570 || (sc
->version
< TLS1_VERSION
&& sc
->version
!= DTLS1_BAD_VER
))
3573 return s
->method
->ssl3_enc
->export_keying_material(sc
, out
, olen
, label
,
3575 contextlen
, use_context
);
3578 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
3579 const char *label
, size_t llen
,
3580 const unsigned char *context
,
3583 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3588 if (sc
->version
!= TLS1_3_VERSION
)
3591 return tls13_export_keying_material_early(sc
, out
, olen
, label
, llen
,
3592 context
, contextlen
);
3595 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
3597 const unsigned char *session_id
= a
->session_id
;
3599 unsigned char tmp_storage
[4];
3601 if (a
->session_id_length
< sizeof(tmp_storage
)) {
3602 memset(tmp_storage
, 0, sizeof(tmp_storage
));
3603 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
3604 session_id
= tmp_storage
;
3608 ((unsigned long)session_id
[0]) |
3609 ((unsigned long)session_id
[1] << 8L) |
3610 ((unsigned long)session_id
[2] << 16L) |
3611 ((unsigned long)session_id
[3] << 24L);
3616 * NB: If this function (or indeed the hash function which uses a sort of
3617 * coarser function than this one) is changed, ensure
3618 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3619 * being able to construct an SSL_SESSION that will collide with any existing
3620 * session with a matching session ID.
3622 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
3624 if (a
->ssl_version
!= b
->ssl_version
)
3626 if (a
->session_id_length
!= b
->session_id_length
)
3628 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
3632 * These wrapper functions should remain rather than redeclaring
3633 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3634 * variable. The reason is that the functions aren't static, they're exposed
3638 SSL_CTX
*SSL_CTX_new_ex(OSSL_LIB_CTX
*libctx
, const char *propq
,
3639 const SSL_METHOD
*meth
)
3641 SSL_CTX
*ret
= NULL
;
3644 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_METHOD_PASSED
);
3648 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
3651 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3652 ERR_raise(ERR_LIB_SSL
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
3655 ret
= OPENSSL_zalloc(sizeof(*ret
));
3659 /* Init the reference counting before any call to SSL_CTX_free */
3660 ret
->references
= 1;
3661 ret
->lock
= CRYPTO_THREAD_lock_new();
3662 if (ret
->lock
== NULL
) {
3663 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3668 #ifdef TSAN_REQUIRES_LOCKING
3669 ret
->tsan_lock
= CRYPTO_THREAD_lock_new();
3670 if (ret
->tsan_lock
== NULL
) {
3671 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3676 ret
->libctx
= libctx
;
3677 if (propq
!= NULL
) {
3678 ret
->propq
= OPENSSL_strdup(propq
);
3679 if (ret
->propq
== NULL
)
3684 ret
->min_proto_version
= 0;
3685 ret
->max_proto_version
= 0;
3686 ret
->mode
= SSL_MODE_AUTO_RETRY
;
3687 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
3688 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
3689 /* We take the system default. */
3690 ret
->session_timeout
= meth
->get_timeout();
3691 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3692 ret
->verify_mode
= SSL_VERIFY_NONE
;
3693 if ((ret
->cert
= ssl_cert_new()) == NULL
)
3696 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3697 if (ret
->sessions
== NULL
)
3699 ret
->cert_store
= X509_STORE_new();
3700 if (ret
->cert_store
== NULL
)
3702 #ifndef OPENSSL_NO_CT
3703 ret
->ctlog_store
= CTLOG_STORE_new_ex(libctx
, propq
);
3704 if (ret
->ctlog_store
== NULL
)
3708 /* initialize cipher/digest methods table */
3709 if (!ssl_load_ciphers(ret
))
3711 /* initialise sig algs */
3712 if (!ssl_setup_sig_algs(ret
))
3716 if (!ssl_load_groups(ret
))
3719 if (!SSL_CTX_set_ciphersuites(ret
, OSSL_default_ciphersuites()))
3722 if (!ssl_create_cipher_list(ret
,
3723 ret
->tls13_ciphersuites
,
3724 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3725 OSSL_default_cipher_list(), ret
->cert
)
3726 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3727 ERR_raise(ERR_LIB_SSL
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3731 ret
->param
= X509_VERIFY_PARAM_new();
3732 if (ret
->param
== NULL
)
3736 * If these aren't available from the provider we'll get NULL returns.
3737 * That's fine but will cause errors later if SSLv3 is negotiated
3739 ret
->md5
= ssl_evp_md_fetch(libctx
, NID_md5
, propq
);
3740 ret
->sha1
= ssl_evp_md_fetch(libctx
, NID_sha1
, propq
);
3742 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
3745 if ((ret
->client_ca_names
= sk_X509_NAME_new_null()) == NULL
)
3748 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
3751 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
3754 /* No compression for DTLS */
3755 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3756 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3758 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3759 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3761 /* Setup RFC5077 ticket keys */
3762 if ((RAND_bytes_ex(libctx
, ret
->ext
.tick_key_name
,
3763 sizeof(ret
->ext
.tick_key_name
), 0) <= 0)
3764 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_hmac_key
,
3765 sizeof(ret
->ext
.secure
->tick_hmac_key
), 0) <= 0)
3766 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_aes_key
,
3767 sizeof(ret
->ext
.secure
->tick_aes_key
), 0) <= 0))
3768 ret
->options
|= SSL_OP_NO_TICKET
;
3770 if (RAND_priv_bytes_ex(libctx
, ret
->ext
.cookie_hmac_key
,
3771 sizeof(ret
->ext
.cookie_hmac_key
), 0) <= 0)
3774 #ifndef OPENSSL_NO_SRP
3775 if (!ssl_ctx_srp_ctx_init_intern(ret
))
3778 #ifndef OPENSSL_NO_ENGINE
3779 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3780 # define eng_strx(x) #x
3781 # define eng_str(x) eng_strx(x)
3782 /* Use specific client engine automatically... ignore errors */
3785 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3788 ENGINE_load_builtin_engines();
3789 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3791 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3797 * Disable compression by default to prevent CRIME. Applications can
3798 * re-enable compression by configuring
3799 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3800 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3801 * middlebox compatibility by default. This may be disabled by default in
3802 * a later OpenSSL version.
3804 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3806 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3809 * We cannot usefully set a default max_early_data here (which gets
3810 * propagated in SSL_new(), for the following reason: setting the
3811 * SSL field causes tls_construct_stoc_early_data() to tell the
3812 * client that early data will be accepted when constructing a TLS 1.3
3813 * session ticket, and the client will accordingly send us early data
3814 * when using that ticket (if the client has early data to send).
3815 * However, in order for the early data to actually be consumed by
3816 * the application, the application must also have calls to
3817 * SSL_read_early_data(); otherwise we'll just skip past the early data
3818 * and ignore it. So, since the application must add calls to
3819 * SSL_read_early_data(), we also require them to add
3820 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3821 * eliminating the bandwidth-wasting early data in the case described
3824 ret
->max_early_data
= 0;
3827 * Default recv_max_early_data is a fully loaded single record. Could be
3828 * split across multiple records in practice. We set this differently to
3829 * max_early_data so that, in the default case, we do not advertise any
3830 * support for early_data, but if a client were to send us some (e.g.
3831 * because of an old, stale ticket) then we will tolerate it and skip over
3834 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3836 /* By default we send two session tickets automatically in TLSv1.3 */
3837 ret
->num_tickets
= 2;
3839 ssl_ctx_system_config(ret
);
3843 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3849 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
3851 return SSL_CTX_new_ex(NULL
, NULL
, meth
);
3854 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3858 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3861 REF_PRINT_COUNT("SSL_CTX", ctx
);
3862 REF_ASSERT_ISNT(i
< 2);
3863 return ((i
> 1) ? 1 : 0);
3866 void SSL_CTX_free(SSL_CTX
*a
)
3874 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3875 REF_PRINT_COUNT("SSL_CTX", a
);
3878 REF_ASSERT_ISNT(i
< 0);
3880 X509_VERIFY_PARAM_free(a
->param
);
3881 dane_ctx_final(&a
->dane
);
3884 * Free internal session cache. However: the remove_cb() may reference
3885 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3886 * after the sessions were flushed.
3887 * As the ex_data handling routines might also touch the session cache,
3888 * the most secure solution seems to be: empty (flush) the cache, then
3889 * free ex_data, then finally free the cache.
3890 * (See ticket [openssl.org #212].)
3892 if (a
->sessions
!= NULL
)
3893 SSL_CTX_flush_sessions(a
, 0);
3895 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3896 lh_SSL_SESSION_free(a
->sessions
);
3897 X509_STORE_free(a
->cert_store
);
3898 #ifndef OPENSSL_NO_CT
3899 CTLOG_STORE_free(a
->ctlog_store
);
3901 sk_SSL_CIPHER_free(a
->cipher_list
);
3902 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3903 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3904 ssl_cert_free(a
->cert
);
3905 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3906 sk_X509_NAME_pop_free(a
->client_ca_names
, X509_NAME_free
);
3907 OSSL_STACK_OF_X509_free(a
->extra_certs
);
3908 a
->comp_methods
= NULL
;
3909 #ifndef OPENSSL_NO_SRTP
3910 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3912 #ifndef OPENSSL_NO_SRP
3913 ssl_ctx_srp_ctx_free_intern(a
);
3915 #ifndef OPENSSL_NO_ENGINE
3916 tls_engine_finish(a
->client_cert_engine
);
3919 OPENSSL_free(a
->ext
.ecpointformats
);
3920 OPENSSL_free(a
->ext
.supportedgroups
);
3921 OPENSSL_free(a
->ext
.supported_groups_default
);
3922 OPENSSL_free(a
->ext
.alpn
);
3923 OPENSSL_secure_free(a
->ext
.secure
);
3925 ssl_evp_md_free(a
->md5
);
3926 ssl_evp_md_free(a
->sha1
);
3928 for (j
= 0; j
< SSL_ENC_NUM_IDX
; j
++)
3929 ssl_evp_cipher_free(a
->ssl_cipher_methods
[j
]);
3930 for (j
= 0; j
< SSL_MD_NUM_IDX
; j
++)
3931 ssl_evp_md_free(a
->ssl_digest_methods
[j
]);
3932 for (j
= 0; j
< a
->group_list_len
; j
++) {
3933 OPENSSL_free(a
->group_list
[j
].tlsname
);
3934 OPENSSL_free(a
->group_list
[j
].realname
);
3935 OPENSSL_free(a
->group_list
[j
].algorithm
);
3937 OPENSSL_free(a
->group_list
);
3939 OPENSSL_free(a
->sigalg_lookup_cache
);
3941 CRYPTO_THREAD_lock_free(a
->lock
);
3942 #ifdef TSAN_REQUIRES_LOCKING
3943 CRYPTO_THREAD_lock_free(a
->tsan_lock
);
3946 OPENSSL_free(a
->propq
);
3951 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3953 ctx
->default_passwd_callback
= cb
;
3956 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3958 ctx
->default_passwd_callback_userdata
= u
;
3961 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3963 return ctx
->default_passwd_callback
;
3966 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3968 return ctx
->default_passwd_callback_userdata
;
3971 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3973 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3978 sc
->default_passwd_callback
= cb
;
3981 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3983 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3988 sc
->default_passwd_callback_userdata
= u
;
3991 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3993 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3998 return sc
->default_passwd_callback
;
4001 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
4003 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4008 return sc
->default_passwd_callback_userdata
;
4011 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
4012 int (*cb
) (X509_STORE_CTX
*, void *),
4015 ctx
->app_verify_callback
= cb
;
4016 ctx
->app_verify_arg
= arg
;
4019 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
4020 int (*cb
) (int, X509_STORE_CTX
*))
4022 ctx
->verify_mode
= mode
;
4023 ctx
->default_verify_callback
= cb
;
4026 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
4028 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
4031 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4033 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
4036 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4038 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4043 ssl_cert_set_cert_cb(sc
->cert
, cb
, arg
);
4046 void ssl_set_masks(SSL_CONNECTION
*s
)
4049 uint32_t *pvalid
= s
->s3
.tmp
.valid_flags
;
4050 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
4051 unsigned long mask_k
, mask_a
;
4052 int have_ecc_cert
, ecdsa_ok
;
4057 dh_tmp
= (c
->dh_tmp
!= NULL
4058 || c
->dh_tmp_cb
!= NULL
4061 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4062 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4063 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
4064 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
4068 OSSL_TRACE4(TLS_CIPHER
, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4069 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
4071 #ifndef OPENSSL_NO_GOST
4072 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
4073 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4074 mask_a
|= SSL_aGOST12
;
4076 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
4077 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4078 mask_a
|= SSL_aGOST12
;
4080 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
4081 mask_k
|= SSL_kGOST
;
4082 mask_a
|= SSL_aGOST01
;
4093 * If we only have an RSA-PSS certificate allow RSA authentication
4094 * if TLS 1.2 and peer supports it.
4097 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
4098 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
4099 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
))
4106 mask_a
|= SSL_aNULL
;
4109 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4110 * depending on the key usage extension.
4112 if (have_ecc_cert
) {
4114 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
4115 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
4116 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
4119 mask_a
|= SSL_aECDSA
;
4121 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4122 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
4123 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
4124 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4125 mask_a
|= SSL_aECDSA
;
4127 /* Allow Ed448 for TLS 1.2 if peer supports it */
4128 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
4129 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
4130 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4131 mask_a
|= SSL_aECDSA
;
4133 mask_k
|= SSL_kECDHE
;
4135 #ifndef OPENSSL_NO_PSK
4138 if (mask_k
& SSL_kRSA
)
4139 mask_k
|= SSL_kRSAPSK
;
4140 if (mask_k
& SSL_kDHE
)
4141 mask_k
|= SSL_kDHEPSK
;
4142 if (mask_k
& SSL_kECDHE
)
4143 mask_k
|= SSL_kECDHEPSK
;
4146 s
->s3
.tmp
.mask_k
= mask_k
;
4147 s
->s3
.tmp
.mask_a
= mask_a
;
4150 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CONNECTION
*s
)
4152 if (s
->s3
.tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
4153 /* key usage, if present, must allow signing */
4154 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
4155 ERR_raise(ERR_LIB_SSL
, SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
4159 return 1; /* all checks are ok */
4162 int ssl_get_server_cert_serverinfo(SSL_CONNECTION
*s
,
4163 const unsigned char **serverinfo
,
4164 size_t *serverinfo_length
)
4166 CERT_PKEY
*cpk
= s
->s3
.tmp
.cert
;
4167 *serverinfo_length
= 0;
4169 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
4172 *serverinfo
= cpk
->serverinfo
;
4173 *serverinfo_length
= cpk
->serverinfo_length
;
4177 void ssl_update_cache(SSL_CONNECTION
*s
, int mode
)
4182 * If the session_id_length is 0, we are not supposed to cache it, and it
4183 * would be rather hard to do anyway :-)
4185 if (s
->session
->session_id_length
== 0)
4189 * If sid_ctx_length is 0 there is no specific application context
4190 * associated with this session, so when we try to resume it and
4191 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4192 * indication that this is actually a session for the proper application
4193 * context, and the *handshake* will fail, not just the resumption attempt.
4194 * Do not cache (on the server) these sessions that are not resumable
4195 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4197 if (s
->server
&& s
->session
->sid_ctx_length
== 0
4198 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
4201 i
= s
->session_ctx
->session_cache_mode
;
4203 && (!s
->hit
|| SSL_CONNECTION_IS_TLS13(s
))) {
4205 * Add the session to the internal cache. In server side TLSv1.3 we
4206 * normally don't do this because by default it's a full stateless ticket
4207 * with only a dummy session id so there is no reason to cache it,
4209 * - we are doing early_data, in which case we cache so that we can
4211 * - the application has set a remove_session_cb so needs to know about
4212 * session timeout events
4213 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4215 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
4216 && (!SSL_CONNECTION_IS_TLS13(s
)
4218 || (s
->max_early_data
> 0
4219 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
4220 || s
->session_ctx
->remove_session_cb
!= NULL
4221 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
4222 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
4225 * Add the session to the external cache. We do this even in server side
4226 * TLSv1.3 without early data because some applications just want to
4227 * know about the creation of a session and aren't doing a full cache.
4229 if (s
->session_ctx
->new_session_cb
!= NULL
) {
4230 SSL_SESSION_up_ref(s
->session
);
4231 if (!s
->session_ctx
->new_session_cb(SSL_CONNECTION_GET_SSL(s
),
4233 SSL_SESSION_free(s
->session
);
4237 /* auto flush every 255 connections */
4238 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
4239 TSAN_QUALIFIER
int *stat
;
4241 if (mode
& SSL_SESS_CACHE_CLIENT
)
4242 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
4244 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
4245 if ((ssl_tsan_load(s
->session_ctx
, stat
) & 0xff) == 0xff)
4246 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
4250 const SSL_METHOD
*SSL_CTX_get_ssl_method(const SSL_CTX
*ctx
)
4255 const SSL_METHOD
*SSL_get_ssl_method(const SSL
*s
)
4260 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
4263 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4265 /* TODO(QUIC): Do we want this for QUIC? */
4267 || (s
->type
!= SSL_TYPE_SSL_CONNECTION
&& s
->method
!= meth
))
4270 if (s
->method
!= meth
) {
4271 const SSL_METHOD
*sm
= s
->method
;
4272 int (*hf
) (SSL
*) = sc
->handshake_func
;
4274 if (sm
->version
== meth
->version
)
4279 ret
= s
->method
->ssl_init(s
);
4282 if (hf
== sm
->ssl_connect
)
4283 sc
->handshake_func
= meth
->ssl_connect
;
4284 else if (hf
== sm
->ssl_accept
)
4285 sc
->handshake_func
= meth
->ssl_accept
;
4290 int SSL_get_error(const SSL
*s
, int i
)
4295 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4298 return SSL_ERROR_NONE
;
4300 /* TODO(QUIC): This will need more handling for QUIC_CONNECTIONs */
4302 return SSL_ERROR_SSL
;
4305 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4306 * where we do encode the error
4308 if ((l
= ERR_peek_error()) != 0) {
4309 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
4310 return SSL_ERROR_SYSCALL
;
4312 return SSL_ERROR_SSL
;
4315 if (SSL_want_read(s
)) {
4316 bio
= SSL_get_rbio(s
);
4317 if (BIO_should_read(bio
))
4318 return SSL_ERROR_WANT_READ
;
4319 else if (BIO_should_write(bio
))
4321 * This one doesn't make too much sense ... We never try to write
4322 * to the rbio, and an application program where rbio and wbio
4323 * are separate couldn't even know what it should wait for.
4324 * However if we ever set s->rwstate incorrectly (so that we have
4325 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
4326 * wbio *are* the same, this test works around that bug; so it
4327 * might be safer to keep it.
4329 return SSL_ERROR_WANT_WRITE
;
4330 else if (BIO_should_io_special(bio
)) {
4331 reason
= BIO_get_retry_reason(bio
);
4332 if (reason
== BIO_RR_CONNECT
)
4333 return SSL_ERROR_WANT_CONNECT
;
4334 else if (reason
== BIO_RR_ACCEPT
)
4335 return SSL_ERROR_WANT_ACCEPT
;
4337 return SSL_ERROR_SYSCALL
; /* unknown */
4341 if (SSL_want_write(s
)) {
4342 /* Access wbio directly - in order to use the buffered bio if present */
4344 if (BIO_should_write(bio
))
4345 return SSL_ERROR_WANT_WRITE
;
4346 else if (BIO_should_read(bio
))
4348 * See above (SSL_want_read(s) with BIO_should_write(bio))
4350 return SSL_ERROR_WANT_READ
;
4351 else if (BIO_should_io_special(bio
)) {
4352 reason
= BIO_get_retry_reason(bio
);
4353 if (reason
== BIO_RR_CONNECT
)
4354 return SSL_ERROR_WANT_CONNECT
;
4355 else if (reason
== BIO_RR_ACCEPT
)
4356 return SSL_ERROR_WANT_ACCEPT
;
4358 return SSL_ERROR_SYSCALL
;
4361 if (SSL_want_x509_lookup(s
))
4362 return SSL_ERROR_WANT_X509_LOOKUP
;
4363 if (SSL_want_retry_verify(s
))
4364 return SSL_ERROR_WANT_RETRY_VERIFY
;
4365 if (SSL_want_async(s
))
4366 return SSL_ERROR_WANT_ASYNC
;
4367 if (SSL_want_async_job(s
))
4368 return SSL_ERROR_WANT_ASYNC_JOB
;
4369 if (SSL_want_client_hello_cb(s
))
4370 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
4372 if ((sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
4373 (sc
->s3
.warn_alert
== SSL_AD_CLOSE_NOTIFY
))
4374 return SSL_ERROR_ZERO_RETURN
;
4376 return SSL_ERROR_SYSCALL
;
4379 static int ssl_do_handshake_intern(void *vargs
)
4381 struct ssl_async_args
*args
= (struct ssl_async_args
*)vargs
;
4383 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4388 return sc
->handshake_func(s
);
4391 int SSL_do_handshake(SSL
*s
)
4394 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4396 /* TODO(QUIC): Special handling for QUIC will be needed */
4400 if (sc
->handshake_func
== NULL
) {
4401 ERR_raise(ERR_LIB_SSL
, SSL_R_CONNECTION_TYPE_NOT_SET
);
4405 ossl_statem_check_finish_init(sc
, -1);
4407 s
->method
->ssl_renegotiate_check(s
, 0);
4409 if (SSL_in_init(s
) || SSL_in_before(s
)) {
4410 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
4411 struct ssl_async_args args
;
4413 memset(&args
, 0, sizeof(args
));
4416 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
4418 ret
= sc
->handshake_func(s
);
4424 void SSL_set_accept_state(SSL
*s
)
4426 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4428 /* TODO(QUIC): Special handling for QUIC will be needed */
4434 ossl_statem_clear(sc
);
4435 sc
->handshake_func
= s
->method
->ssl_accept
;
4439 void SSL_set_connect_state(SSL
*s
)
4441 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4443 /* TODO(QUIC): Special handling for QUIC will be needed */
4449 ossl_statem_clear(sc
);
4450 sc
->handshake_func
= s
->method
->ssl_connect
;
4454 int ssl_undefined_function(SSL
*s
)
4456 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4460 int ssl_undefined_void_function(void)
4462 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4466 int ssl_undefined_const_function(const SSL
*s
)
4471 const SSL_METHOD
*ssl_bad_method(int ver
)
4473 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4477 const char *ssl_protocol_to_string(int version
)
4481 case TLS1_3_VERSION
:
4484 case TLS1_2_VERSION
:
4487 case TLS1_1_VERSION
:
4502 case DTLS1_2_VERSION
:
4510 const char *SSL_get_version(const SSL
*s
)
4512 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4514 /* TODO(QUIC): Should QUIC return QUIC or TLSv1.3? */
4518 return ssl_protocol_to_string(sc
->version
);
4521 static int dup_ca_names(STACK_OF(X509_NAME
) **dst
, STACK_OF(X509_NAME
) *src
)
4523 STACK_OF(X509_NAME
) *sk
;
4532 if ((sk
= sk_X509_NAME_new_null()) == NULL
)
4534 for (i
= 0; i
< sk_X509_NAME_num(src
); i
++) {
4535 xn
= X509_NAME_dup(sk_X509_NAME_value(src
, i
));
4537 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4540 if (sk_X509_NAME_insert(sk
, xn
, i
) == 0) {
4542 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4551 SSL
*SSL_dup(SSL
*s
)
4555 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4556 SSL_CONNECTION
*retsc
;
4557 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4562 /* If we're not quiescent, just up_ref! */
4563 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
4564 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
4569 * Otherwise, copy configuration state, and session if set.
4571 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
4573 if ((retsc
= SSL_CONNECTION_FROM_SSL_ONLY(ret
)) == NULL
)
4576 if (sc
->session
!= NULL
) {
4578 * Arranges to share the same session via up_ref. This "copies"
4579 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4581 if (!SSL_copy_session_id(ret
, s
))
4585 * No session has been established yet, so we have to expect that
4586 * s->cert or ret->cert will be changed later -- they should not both
4587 * point to the same object, and thus we can't use
4588 * SSL_copy_session_id.
4590 if (!SSL_set_ssl_method(ret
, s
->method
))
4593 if (sc
->cert
!= NULL
) {
4594 ssl_cert_free(retsc
->cert
);
4595 retsc
->cert
= ssl_cert_dup(sc
->cert
);
4596 if (retsc
->cert
== NULL
)
4600 if (!SSL_set_session_id_context(ret
, sc
->sid_ctx
,
4601 (int)sc
->sid_ctx_length
))
4605 if (!ssl_dane_dup(retsc
, sc
))
4607 retsc
->version
= sc
->version
;
4608 retsc
->options
= sc
->options
;
4609 retsc
->min_proto_version
= sc
->min_proto_version
;
4610 retsc
->max_proto_version
= sc
->max_proto_version
;
4611 retsc
->mode
= sc
->mode
;
4612 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
4613 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
4614 retsc
->msg_callback
= sc
->msg_callback
;
4615 retsc
->msg_callback_arg
= sc
->msg_callback_arg
;
4616 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
4617 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
4618 retsc
->generate_session_id
= sc
->generate_session_id
;
4620 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
4622 /* copy app data, a little dangerous perhaps */
4623 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
4626 retsc
->server
= sc
->server
;
4627 if (sc
->handshake_func
) {
4629 SSL_set_accept_state(ret
);
4631 SSL_set_connect_state(ret
);
4633 retsc
->shutdown
= sc
->shutdown
;
4634 retsc
->hit
= sc
->hit
;
4636 retsc
->default_passwd_callback
= sc
->default_passwd_callback
;
4637 retsc
->default_passwd_callback_userdata
= sc
->default_passwd_callback_userdata
;
4639 X509_VERIFY_PARAM_inherit(retsc
->param
, sc
->param
);
4641 /* dup the cipher_list and cipher_list_by_id stacks */
4642 if (sc
->cipher_list
!= NULL
) {
4643 if ((retsc
->cipher_list
= sk_SSL_CIPHER_dup(sc
->cipher_list
)) == NULL
)
4646 if (sc
->cipher_list_by_id
!= NULL
)
4647 if ((retsc
->cipher_list_by_id
= sk_SSL_CIPHER_dup(sc
->cipher_list_by_id
))
4651 /* Dup the client_CA list */
4652 if (!dup_ca_names(&retsc
->ca_names
, sc
->ca_names
)
4653 || !dup_ca_names(&retsc
->client_ca_names
, sc
->client_ca_names
))
4663 void ssl_clear_cipher_ctx(SSL_CONNECTION
*s
)
4665 if (s
->enc_read_ctx
!= NULL
) {
4666 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
4667 s
->enc_read_ctx
= NULL
;
4669 if (s
->enc_write_ctx
!= NULL
) {
4670 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
4671 s
->enc_write_ctx
= NULL
;
4673 #ifndef OPENSSL_NO_COMP
4674 COMP_CTX_free(s
->expand
);
4676 COMP_CTX_free(s
->compress
);
4681 X509
*SSL_get_certificate(const SSL
*s
)
4683 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4688 if (sc
->cert
!= NULL
)
4689 return sc
->cert
->key
->x509
;
4694 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
4696 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4701 if (sc
->cert
!= NULL
)
4702 return sc
->cert
->key
->privatekey
;
4707 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
4709 if (ctx
->cert
!= NULL
)
4710 return ctx
->cert
->key
->x509
;
4715 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
4717 if (ctx
->cert
!= NULL
)
4718 return ctx
->cert
->key
->privatekey
;
4723 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
4725 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4730 if ((sc
->session
!= NULL
) && (sc
->session
->cipher
!= NULL
))
4731 return sc
->session
->cipher
;
4735 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
4737 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4742 return sc
->s3
.tmp
.new_cipher
;
4745 const COMP_METHOD
*SSL_get_current_compression(const SSL
*s
)
4747 #ifndef OPENSSL_NO_COMP
4748 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4753 return sc
->compress
? COMP_CTX_get_method(sc
->compress
) : NULL
;
4759 const COMP_METHOD
*SSL_get_current_expansion(const SSL
*s
)
4761 #ifndef OPENSSL_NO_COMP
4762 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4767 return sc
->expand
? COMP_CTX_get_method(sc
->expand
) : NULL
;
4773 int ssl_init_wbio_buffer(SSL_CONNECTION
*s
)
4777 if (s
->bbio
!= NULL
) {
4778 /* Already buffered. */
4782 bbio
= BIO_new(BIO_f_buffer());
4783 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
4785 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
4789 s
->wbio
= BIO_push(bbio
, s
->wbio
);
4794 int ssl_free_wbio_buffer(SSL_CONNECTION
*s
)
4796 /* callers ensure s is never null */
4797 if (s
->bbio
== NULL
)
4800 s
->wbio
= BIO_pop(s
->wbio
);
4807 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
4809 ctx
->quiet_shutdown
= mode
;
4812 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
4814 return ctx
->quiet_shutdown
;
4817 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
4819 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4821 /* TODO(QUIC): Do we want this for QUIC? */
4825 sc
->quiet_shutdown
= mode
;
4828 int SSL_get_quiet_shutdown(const SSL
*s
)
4830 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4832 /* TODO(QUIC): Do we want this for QUIC? */
4836 return sc
->quiet_shutdown
;
4839 void SSL_set_shutdown(SSL
*s
, int mode
)
4841 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4843 /* TODO(QUIC): Do we want this for QUIC? */
4847 sc
->shutdown
= mode
;
4850 int SSL_get_shutdown(const SSL
*s
)
4852 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4854 /* TODO(QUIC): Do we want this for QUIC? */
4858 return sc
->shutdown
;
4861 int SSL_version(const SSL
*s
)
4863 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4865 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4872 int SSL_client_version(const SSL
*s
)
4874 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4876 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4880 return sc
->client_version
;
4883 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
4888 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
4891 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
4893 /* TODO(QUIC): Do we need this for QUIC support? */
4897 if (ssl
->ctx
== ctx
)
4900 ctx
= sc
->session_ctx
;
4901 new_cert
= ssl_cert_dup(ctx
->cert
);
4902 if (new_cert
== NULL
) {
4906 if (!custom_exts_copy_flags(&new_cert
->custext
, &sc
->cert
->custext
)) {
4907 ssl_cert_free(new_cert
);
4911 ssl_cert_free(sc
->cert
);
4912 sc
->cert
= new_cert
;
4915 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4916 * so setter APIs must prevent invalid lengths from entering the system.
4918 if (!ossl_assert(sc
->sid_ctx_length
<= sizeof(sc
->sid_ctx
)))
4922 * If the session ID context matches that of the parent SSL_CTX,
4923 * inherit it from the new SSL_CTX as well. If however the context does
4924 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4925 * leave it unchanged.
4927 if ((ssl
->ctx
!= NULL
) &&
4928 (sc
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
4929 (memcmp(sc
->sid_ctx
, ssl
->ctx
->sid_ctx
, sc
->sid_ctx_length
) == 0)) {
4930 sc
->sid_ctx_length
= ctx
->sid_ctx_length
;
4931 memcpy(&sc
->sid_ctx
, &ctx
->sid_ctx
, sizeof(sc
->sid_ctx
));
4934 SSL_CTX_up_ref(ctx
);
4935 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
4941 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
4943 return X509_STORE_set_default_paths_ex(ctx
->cert_store
, ctx
->libctx
,
4947 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
4949 X509_LOOKUP
*lookup
;
4951 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4955 /* We ignore errors, in case the directory doesn't exist */
4958 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4965 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4967 X509_LOOKUP
*lookup
;
4969 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4973 /* We ignore errors, in case the file doesn't exist */
4976 X509_LOOKUP_load_file_ex(lookup
, NULL
, X509_FILETYPE_DEFAULT
, ctx
->libctx
,
4984 int SSL_CTX_set_default_verify_store(SSL_CTX
*ctx
)
4986 X509_LOOKUP
*lookup
;
4988 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_store());
4992 /* We ignore errors, in case the directory doesn't exist */
4995 X509_LOOKUP_add_store_ex(lookup
, NULL
, ctx
->libctx
, ctx
->propq
);
5002 int SSL_CTX_load_verify_file(SSL_CTX
*ctx
, const char *CAfile
)
5004 return X509_STORE_load_file_ex(ctx
->cert_store
, CAfile
, ctx
->libctx
,
5008 int SSL_CTX_load_verify_dir(SSL_CTX
*ctx
, const char *CApath
)
5010 return X509_STORE_load_path(ctx
->cert_store
, CApath
);
5013 int SSL_CTX_load_verify_store(SSL_CTX
*ctx
, const char *CAstore
)
5015 return X509_STORE_load_store_ex(ctx
->cert_store
, CAstore
, ctx
->libctx
,
5019 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
5022 if (CAfile
== NULL
&& CApath
== NULL
)
5024 if (CAfile
!= NULL
&& !SSL_CTX_load_verify_file(ctx
, CAfile
))
5026 if (CApath
!= NULL
&& !SSL_CTX_load_verify_dir(ctx
, CApath
))
5031 void SSL_set_info_callback(SSL
*ssl
,
5032 void (*cb
) (const SSL
*ssl
, int type
, int val
))
5034 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5039 sc
->info_callback
= cb
;
5043 * One compiler (Diab DCC) doesn't like argument names in returned function
5046 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
5049 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5054 return sc
->info_callback
;
5057 void SSL_set_verify_result(SSL
*ssl
, long arg
)
5059 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5064 sc
->verify_result
= arg
;
5067 long SSL_get_verify_result(const SSL
*ssl
)
5069 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5074 return sc
->verify_result
;
5077 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5079 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5085 return sizeof(sc
->s3
.client_random
);
5086 if (outlen
> sizeof(sc
->s3
.client_random
))
5087 outlen
= sizeof(sc
->s3
.client_random
);
5088 memcpy(out
, sc
->s3
.client_random
, outlen
);
5092 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5094 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5100 return sizeof(sc
->s3
.server_random
);
5101 if (outlen
> sizeof(sc
->s3
.server_random
))
5102 outlen
= sizeof(sc
->s3
.server_random
);
5103 memcpy(out
, sc
->s3
.server_random
, outlen
);
5107 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
5108 unsigned char *out
, size_t outlen
)
5111 return session
->master_key_length
;
5112 if (outlen
> session
->master_key_length
)
5113 outlen
= session
->master_key_length
;
5114 memcpy(out
, session
->master_key
, outlen
);
5118 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
5121 if (len
> sizeof(sess
->master_key
))
5124 memcpy(sess
->master_key
, in
, len
);
5125 sess
->master_key_length
= len
;
5130 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
5132 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5135 void *SSL_get_ex_data(const SSL
*s
, int idx
)
5137 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5140 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
5142 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5145 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
5147 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5150 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
5152 return ctx
->cert_store
;
5155 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5157 X509_STORE_free(ctx
->cert_store
);
5158 ctx
->cert_store
= store
;
5161 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5164 X509_STORE_up_ref(store
);
5165 SSL_CTX_set_cert_store(ctx
, store
);
5168 int SSL_want(const SSL
*s
)
5170 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5178 #ifndef OPENSSL_NO_PSK
5179 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
5181 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5182 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5185 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
5186 if (identity_hint
!= NULL
) {
5187 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5188 if (ctx
->cert
->psk_identity_hint
== NULL
)
5191 ctx
->cert
->psk_identity_hint
= NULL
;
5195 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
5197 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5202 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5203 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5206 OPENSSL_free(sc
->cert
->psk_identity_hint
);
5207 if (identity_hint
!= NULL
) {
5208 sc
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5209 if (sc
->cert
->psk_identity_hint
== NULL
)
5212 sc
->cert
->psk_identity_hint
= NULL
;
5216 const char *SSL_get_psk_identity_hint(const SSL
*s
)
5218 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5220 if (sc
== NULL
|| sc
->session
== NULL
)
5223 return sc
->session
->psk_identity_hint
;
5226 const char *SSL_get_psk_identity(const SSL
*s
)
5228 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5230 if (sc
== NULL
|| sc
->session
== NULL
)
5233 return sc
->session
->psk_identity
;
5236 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
5238 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5243 sc
->psk_client_callback
= cb
;
5246 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
5248 ctx
->psk_client_callback
= cb
;
5251 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
5253 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5258 sc
->psk_server_callback
= cb
;
5261 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
5263 ctx
->psk_server_callback
= cb
;
5267 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
5269 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5274 sc
->psk_find_session_cb
= cb
;
5277 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
5278 SSL_psk_find_session_cb_func cb
)
5280 ctx
->psk_find_session_cb
= cb
;
5283 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
5285 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5290 sc
->psk_use_session_cb
= cb
;
5293 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
5294 SSL_psk_use_session_cb_func cb
)
5296 ctx
->psk_use_session_cb
= cb
;
5299 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
5300 void (*cb
) (int write_p
, int version
,
5301 int content_type
, const void *buf
,
5302 size_t len
, SSL
*ssl
, void *arg
))
5304 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5307 void SSL_set_msg_callback(SSL
*ssl
,
5308 void (*cb
) (int write_p
, int version
,
5309 int content_type
, const void *buf
,
5310 size_t len
, SSL
*ssl
, void *arg
))
5312 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5315 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
5316 int (*cb
) (SSL
*ssl
,
5320 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5321 (void (*)(void))cb
);
5324 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
5325 int (*cb
) (SSL
*ssl
,
5326 int is_forward_secure
))
5328 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5329 (void (*)(void))cb
);
5332 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
5333 size_t (*cb
) (SSL
*ssl
, int type
,
5334 size_t len
, void *arg
))
5336 ctx
->record_padding_cb
= cb
;
5339 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
5341 ctx
->record_padding_arg
= arg
;
5344 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX
*ctx
)
5346 return ctx
->record_padding_arg
;
5349 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
5351 /* block size of 0 or 1 is basically no padding */
5352 if (block_size
== 1)
5353 ctx
->block_padding
= 0;
5354 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5355 ctx
->block_padding
= block_size
;
5361 int SSL_set_record_padding_callback(SSL
*ssl
,
5362 size_t (*cb
) (SSL
*ssl
, int type
,
5363 size_t len
, void *arg
))
5366 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5371 b
= SSL_get_wbio(ssl
);
5372 if (b
== NULL
|| !BIO_get_ktls_send(b
)) {
5373 sc
->record_padding_cb
= cb
;
5379 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
5381 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5386 sc
->record_padding_arg
= arg
;
5389 void *SSL_get_record_padding_callback_arg(const SSL
*ssl
)
5391 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5396 return sc
->record_padding_arg
;
5399 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
5401 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5406 /* block size of 0 or 1 is basically no padding */
5407 if (block_size
== 1)
5408 sc
->block_padding
= 0;
5409 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5410 sc
->block_padding
= block_size
;
5416 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
5418 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5423 sc
->num_tickets
= num_tickets
;
5428 size_t SSL_get_num_tickets(const SSL
*s
)
5430 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5435 return sc
->num_tickets
;
5438 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
5440 ctx
->num_tickets
= num_tickets
;
5445 size_t SSL_CTX_get_num_tickets(const SSL_CTX
*ctx
)
5447 return ctx
->num_tickets
;
5451 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
5452 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
5453 * If EVP_MD pointer is passed, initializes ctx with this |md|.
5454 * Returns the newly allocated ctx;
5457 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
5459 ssl_clear_hash_ctx(hash
);
5460 *hash
= EVP_MD_CTX_new();
5461 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
5462 EVP_MD_CTX_free(*hash
);
5469 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
5472 EVP_MD_CTX_free(*hash
);
5476 /* Retrieve handshake hashes */
5477 int ssl_handshake_hash(SSL_CONNECTION
*s
,
5478 unsigned char *out
, size_t outlen
,
5481 EVP_MD_CTX
*ctx
= NULL
;
5482 EVP_MD_CTX
*hdgst
= s
->s3
.handshake_dgst
;
5483 int hashleni
= EVP_MD_CTX_get_size(hdgst
);
5486 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
5487 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5491 ctx
= EVP_MD_CTX_new();
5493 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5497 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
5498 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
5499 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5503 *hashlen
= hashleni
;
5507 EVP_MD_CTX_free(ctx
);
5511 int SSL_session_reused(const SSL
*s
)
5513 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5521 int SSL_is_server(const SSL
*s
)
5523 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5531 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5532 void SSL_set_debug(SSL
*s
, int debug
)
5534 /* Old function was do-nothing anyway... */
5540 void SSL_set_security_level(SSL
*s
, int level
)
5542 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5547 sc
->cert
->sec_level
= level
;
5550 int SSL_get_security_level(const SSL
*s
)
5552 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5557 return sc
->cert
->sec_level
;
5560 void SSL_set_security_callback(SSL
*s
,
5561 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5562 int op
, int bits
, int nid
,
5563 void *other
, void *ex
))
5565 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5570 sc
->cert
->sec_cb
= cb
;
5573 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
5574 const SSL_CTX
*ctx
, int op
,
5575 int bits
, int nid
, void *other
,
5577 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5582 return sc
->cert
->sec_cb
;
5585 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
5587 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5592 sc
->cert
->sec_ex
= ex
;
5595 void *SSL_get0_security_ex_data(const SSL
*s
)
5597 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5602 return sc
->cert
->sec_ex
;
5605 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
5607 ctx
->cert
->sec_level
= level
;
5610 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
5612 return ctx
->cert
->sec_level
;
5615 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
5616 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5617 int op
, int bits
, int nid
,
5618 void *other
, void *ex
))
5620 ctx
->cert
->sec_cb
= cb
;
5623 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
5629 return ctx
->cert
->sec_cb
;
5632 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
5634 ctx
->cert
->sec_ex
= ex
;
5637 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
5639 return ctx
->cert
->sec_ex
;
5642 uint64_t SSL_CTX_get_options(const SSL_CTX
*ctx
)
5644 return ctx
->options
;
5647 uint64_t SSL_get_options(const SSL
*s
)
5649 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5657 uint64_t SSL_CTX_set_options(SSL_CTX
*ctx
, uint64_t op
)
5659 return ctx
->options
|= op
;
5662 uint64_t SSL_set_options(SSL
*s
, uint64_t op
)
5664 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5669 return sc
->options
|= op
;
5672 uint64_t SSL_CTX_clear_options(SSL_CTX
*ctx
, uint64_t op
)
5674 return ctx
->options
&= ~op
;
5677 uint64_t SSL_clear_options(SSL
*s
, uint64_t op
)
5679 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5684 return sc
->options
&= ~op
;
5687 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
5689 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5694 return sc
->verified_chain
;
5697 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
5699 #ifndef OPENSSL_NO_CT
5702 * Moves SCTs from the |src| stack to the |dst| stack.
5703 * The source of each SCT will be set to |origin|.
5704 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5706 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5708 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
5709 sct_source_t origin
)
5715 *dst
= sk_SCT_new_null();
5717 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
5722 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
5723 if (SCT_set_source(sct
, origin
) != 1)
5726 if (sk_SCT_push(*dst
, sct
) <= 0)
5734 sk_SCT_push(src
, sct
); /* Put the SCT back */
5739 * Look for data collected during ServerHello and parse if found.
5740 * Returns the number of SCTs extracted.
5742 static int ct_extract_tls_extension_scts(SSL_CONNECTION
*s
)
5744 int scts_extracted
= 0;
5746 if (s
->ext
.scts
!= NULL
) {
5747 const unsigned char *p
= s
->ext
.scts
;
5748 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
5750 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
5752 SCT_LIST_free(scts
);
5755 return scts_extracted
;
5759 * Checks for an OCSP response and then attempts to extract any SCTs found if it
5760 * contains an SCT X509 extension. They will be stored in |s->scts|.
5762 * - The number of SCTs extracted, assuming an OCSP response exists.
5763 * - 0 if no OCSP response exists or it contains no SCTs.
5764 * - A negative integer if an error occurs.
5766 static int ct_extract_ocsp_response_scts(SSL_CONNECTION
*s
)
5768 # ifndef OPENSSL_NO_OCSP
5769 int scts_extracted
= 0;
5770 const unsigned char *p
;
5771 OCSP_BASICRESP
*br
= NULL
;
5772 OCSP_RESPONSE
*rsp
= NULL
;
5773 STACK_OF(SCT
) *scts
= NULL
;
5776 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
5779 p
= s
->ext
.ocsp
.resp
;
5780 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
5784 br
= OCSP_response_get1_basic(rsp
);
5788 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
5789 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
5795 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
5797 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
5798 if (scts_extracted
< 0)
5802 SCT_LIST_free(scts
);
5803 OCSP_BASICRESP_free(br
);
5804 OCSP_RESPONSE_free(rsp
);
5805 return scts_extracted
;
5807 /* Behave as if no OCSP response exists */
5813 * Attempts to extract SCTs from the peer certificate.
5814 * Return the number of SCTs extracted, or a negative integer if an error
5817 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION
*s
)
5819 int scts_extracted
= 0;
5820 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5823 STACK_OF(SCT
) *scts
=
5824 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
5827 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
5829 SCT_LIST_free(scts
);
5832 return scts_extracted
;
5836 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
5837 * response (if it exists) and X509v3 extensions in the certificate.
5838 * Returns NULL if an error occurs.
5840 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
5842 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5847 if (!sc
->scts_parsed
) {
5848 if (ct_extract_tls_extension_scts(sc
) < 0 ||
5849 ct_extract_ocsp_response_scts(sc
) < 0 ||
5850 ct_extract_x509v3_extension_scts(sc
) < 0)
5853 sc
->scts_parsed
= 1;
5860 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
5861 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5866 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
5867 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5869 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
5872 for (i
= 0; i
< count
; ++i
) {
5873 SCT
*sct
= sk_SCT_value(scts
, i
);
5874 int status
= SCT_get_validation_status(sct
);
5876 if (status
== SCT_VALIDATION_STATUS_VALID
)
5879 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_VALID_SCTS
);
5883 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
5886 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5892 * Since code exists that uses the custom extension handler for CT, look
5893 * for this and throw an error if they have already registered to use CT.
5895 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
5896 TLSEXT_TYPE_signed_certificate_timestamp
))
5898 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5902 if (callback
!= NULL
) {
5904 * If we are validating CT, then we MUST accept SCTs served via OCSP
5906 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
5910 sc
->ct_validation_callback
= callback
;
5911 sc
->ct_validation_callback_arg
= arg
;
5916 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
5917 ssl_ct_validation_cb callback
, void *arg
)
5920 * Since code exists that uses the custom extension handler for CT, look for
5921 * this and throw an error if they have already registered to use CT.
5923 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
5924 TLSEXT_TYPE_signed_certificate_timestamp
))
5926 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5930 ctx
->ct_validation_callback
= callback
;
5931 ctx
->ct_validation_callback_arg
= arg
;
5935 int SSL_ct_is_enabled(const SSL
*s
)
5937 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5942 return sc
->ct_validation_callback
!= NULL
;
5945 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
5947 return ctx
->ct_validation_callback
!= NULL
;
5950 int ssl_validate_ct(SSL_CONNECTION
*s
)
5953 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5955 SSL_DANE
*dane
= &s
->dane
;
5956 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
5957 const STACK_OF(SCT
) *scts
;
5960 * If no callback is set, the peer is anonymous, or its chain is invalid,
5961 * skip SCT validation - just return success. Applications that continue
5962 * handshakes without certificates, with unverified chains, or pinned leaf
5963 * certificates are outside the scope of the WebPKI and CT.
5965 * The above exclusions notwithstanding the vast majority of peers will
5966 * have rather ordinary certificate chains validated by typical
5967 * applications that perform certificate verification and therefore will
5968 * process SCTs when enabled.
5970 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
5971 s
->verify_result
!= X509_V_OK
||
5972 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
5976 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
5977 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
5979 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
5980 switch (dane
->mtlsa
->usage
) {
5981 case DANETLS_USAGE_DANE_TA
:
5982 case DANETLS_USAGE_DANE_EE
:
5987 ctx
= CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s
)->libctx
,
5988 SSL_CONNECTION_GET_CTX(s
)->propq
);
5990 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
5994 issuer
= sk_X509_value(s
->verified_chain
, 1);
5995 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
5996 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
5997 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
,
5998 SSL_CONNECTION_GET_CTX(s
)->ctlog_store
);
5999 CT_POLICY_EVAL_CTX_set_time(
6000 ctx
, (uint64_t)SSL_SESSION_get_time(s
->session
) * 1000);
6002 scts
= SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s
));
6005 * This function returns success (> 0) only when all the SCTs are valid, 0
6006 * when some are invalid, and < 0 on various internal errors (out of
6007 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6008 * reason to abort the handshake, that decision is up to the callback.
6009 * Therefore, we error out only in the unexpected case that the return
6010 * value is negative.
6012 * XXX: One might well argue that the return value of this function is an
6013 * unfortunate design choice. Its job is only to determine the validation
6014 * status of each of the provided SCTs. So long as it correctly separates
6015 * the wheat from the chaff it should return success. Failure in this case
6016 * ought to correspond to an inability to carry out its duties.
6018 if (SCT_LIST_validate(scts
, ctx
) < 0) {
6019 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_SCT_VERIFICATION_FAILED
);
6023 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
6025 ret
= 0; /* This function returns 0 on failure */
6027 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_CALLBACK_FAILED
);
6030 CT_POLICY_EVAL_CTX_free(ctx
);
6032 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6033 * failure return code here. Also the application may wish the complete
6034 * the handshake, and then disconnect cleanly at a higher layer, after
6035 * checking the verification status of the completed connection.
6037 * We therefore force a certificate verification failure which will be
6038 * visible via SSL_get_verify_result() and cached as part of any resumed
6041 * Note: the permissive callback is for information gathering only, always
6042 * returns success, and does not affect verification status. Only the
6043 * strict callback or a custom application-specified callback can trigger
6044 * connection failure or record a verification error.
6047 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
6051 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
6053 switch (validation_mode
) {
6055 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6057 case SSL_CT_VALIDATION_PERMISSIVE
:
6058 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
6059 case SSL_CT_VALIDATION_STRICT
:
6060 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
6064 int SSL_enable_ct(SSL
*s
, int validation_mode
)
6066 switch (validation_mode
) {
6068 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6070 case SSL_CT_VALIDATION_PERMISSIVE
:
6071 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
6072 case SSL_CT_VALIDATION_STRICT
:
6073 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
6077 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
6079 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
6082 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
6084 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
6087 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
6089 CTLOG_STORE_free(ctx
->ctlog_store
);
6090 ctx
->ctlog_store
= logs
;
6093 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
6095 return ctx
->ctlog_store
;
6098 #endif /* OPENSSL_NO_CT */
6100 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
6103 c
->client_hello_cb
= cb
;
6104 c
->client_hello_cb_arg
= arg
;
6107 int SSL_client_hello_isv2(SSL
*s
)
6109 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6114 if (sc
->clienthello
== NULL
)
6116 return sc
->clienthello
->isv2
;
6119 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
6121 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6126 if (sc
->clienthello
== NULL
)
6128 return sc
->clienthello
->legacy_version
;
6131 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
6133 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6138 if (sc
->clienthello
== NULL
)
6141 *out
= sc
->clienthello
->random
;
6142 return SSL3_RANDOM_SIZE
;
6145 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
6147 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6152 if (sc
->clienthello
== NULL
)
6155 *out
= sc
->clienthello
->session_id
;
6156 return sc
->clienthello
->session_id_len
;
6159 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
6161 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6166 if (sc
->clienthello
== NULL
)
6169 *out
= PACKET_data(&sc
->clienthello
->ciphersuites
);
6170 return PACKET_remaining(&sc
->clienthello
->ciphersuites
);
6173 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
6175 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6180 if (sc
->clienthello
== NULL
)
6183 *out
= sc
->clienthello
->compressions
;
6184 return sc
->clienthello
->compressions_len
;
6187 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
6192 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6197 if (sc
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
6199 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6200 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6209 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
6210 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
6213 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6214 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6216 if (ext
->received_order
>= num
)
6218 present
[ext
->received_order
] = ext
->type
;
6225 OPENSSL_free(present
);
6229 int SSL_client_hello_get_extension_order(SSL
*s
, uint16_t *exts
, size_t *num_exts
)
6233 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6238 if (sc
->clienthello
== NULL
|| num_exts
== NULL
)
6240 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6241 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6253 if (*num_exts
< num
)
6255 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6256 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6258 if (ext
->received_order
>= num
)
6260 exts
[ext
->received_order
] = ext
->type
;
6267 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
6272 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6277 if (sc
->clienthello
== NULL
)
6279 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; ++i
) {
6280 r
= sc
->clienthello
->pre_proc_exts
+ i
;
6281 if (r
->present
&& r
->type
== type
) {
6283 *out
= PACKET_data(&r
->data
);
6285 *outlen
= PACKET_remaining(&r
->data
);
6292 int SSL_free_buffers(SSL
*ssl
)
6295 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6302 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
6305 RECORD_LAYER_release(rl
);
6309 int SSL_alloc_buffers(SSL
*ssl
)
6311 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6316 return ssl3_setup_buffers(sc
);
6319 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
6321 ctx
->keylog_callback
= cb
;
6324 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
6326 return ctx
->keylog_callback
;
6329 static int nss_keylog_int(const char *prefix
,
6331 const uint8_t *parameter_1
,
6332 size_t parameter_1_len
,
6333 const uint8_t *parameter_2
,
6334 size_t parameter_2_len
)
6337 char *cursor
= NULL
;
6341 SSL_CTX
*sctx
= SSL_CONNECTION_GET_CTX(sc
);
6343 if (sctx
->keylog_callback
== NULL
)
6347 * Our output buffer will contain the following strings, rendered with
6348 * space characters in between, terminated by a NULL character: first the
6349 * prefix, then the first parameter, then the second parameter. The
6350 * meaning of each parameter depends on the specific key material being
6351 * logged. Note that the first and second parameters are encoded in
6352 * hexadecimal, so we need a buffer that is twice their lengths.
6354 prefix_len
= strlen(prefix
);
6355 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
6356 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
6357 SSLfatal(sc
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
6361 strcpy(cursor
, prefix
);
6362 cursor
+= prefix_len
;
6365 for (i
= 0; i
< parameter_1_len
; i
++) {
6366 sprintf(cursor
, "%02x", parameter_1
[i
]);
6371 for (i
= 0; i
< parameter_2_len
; i
++) {
6372 sprintf(cursor
, "%02x", parameter_2
[i
]);
6377 sctx
->keylog_callback(SSL_CONNECTION_GET_SSL(sc
), (const char *)out
);
6378 OPENSSL_clear_free(out
, out_len
);
6383 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION
*sc
,
6384 const uint8_t *encrypted_premaster
,
6385 size_t encrypted_premaster_len
,
6386 const uint8_t *premaster
,
6387 size_t premaster_len
)
6389 if (encrypted_premaster_len
< 8) {
6390 SSLfatal(sc
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6394 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6395 return nss_keylog_int("RSA",
6397 encrypted_premaster
,
6403 int ssl_log_secret(SSL_CONNECTION
*sc
,
6405 const uint8_t *secret
,
6408 return nss_keylog_int(label
,
6410 sc
->s3
.client_random
,
6416 #define SSLV2_CIPHER_LEN 3
6418 int ssl_cache_cipherlist(SSL_CONNECTION
*s
, PACKET
*cipher_suites
, int sslv2format
)
6422 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6424 if (PACKET_remaining(cipher_suites
) == 0) {
6425 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6429 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6430 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6434 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6435 s
->s3
.tmp
.ciphers_raw
= NULL
;
6436 s
->s3
.tmp
.ciphers_rawlen
= 0;
6439 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
6440 PACKET sslv2ciphers
= *cipher_suites
;
6441 unsigned int leadbyte
;
6445 * We store the raw ciphers list in SSLv3+ format so we need to do some
6446 * preprocessing to convert the list first. If there are any SSLv2 only
6447 * ciphersuites with a non-zero leading byte then we are going to
6448 * slightly over allocate because we won't store those. But that isn't a
6451 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
6452 s
->s3
.tmp
.ciphers_raw
= raw
;
6454 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
6457 for (s
->s3
.tmp
.ciphers_rawlen
= 0;
6458 PACKET_remaining(&sslv2ciphers
) > 0;
6459 raw
+= TLS_CIPHER_LEN
) {
6460 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
6462 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
6465 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
6466 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_PACKET
);
6467 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6468 s
->s3
.tmp
.ciphers_raw
= NULL
;
6469 s
->s3
.tmp
.ciphers_rawlen
= 0;
6473 s
->s3
.tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
6475 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
.tmp
.ciphers_raw
,
6476 &s
->s3
.tmp
.ciphers_rawlen
)) {
6477 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6483 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
6484 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
6485 STACK_OF(SSL_CIPHER
) **scsvs
)
6488 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6493 if (!PACKET_buf_init(&pkt
, bytes
, len
))
6495 return ossl_bytes_to_cipher_list(sc
, &pkt
, sk
, scsvs
, isv2format
, 0);
6498 int ossl_bytes_to_cipher_list(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
6499 STACK_OF(SSL_CIPHER
) **skp
,
6500 STACK_OF(SSL_CIPHER
) **scsvs_out
,
6501 int sslv2format
, int fatal
)
6503 const SSL_CIPHER
*c
;
6504 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
6505 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
6507 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6508 unsigned char cipher
[SSLV2_CIPHER_LEN
];
6510 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6512 if (PACKET_remaining(cipher_suites
) == 0) {
6514 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6516 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHERS_SPECIFIED
);
6520 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6522 SSLfatal(s
, SSL_AD_DECODE_ERROR
,
6523 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6525 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6529 sk
= sk_SSL_CIPHER_new_null();
6530 scsvs
= sk_SSL_CIPHER_new_null();
6531 if (sk
== NULL
|| scsvs
== NULL
) {
6533 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
6535 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
6539 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
6541 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6542 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6543 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6545 if (sslv2format
&& cipher
[0] != '\0')
6548 /* For SSLv2-compat, ignore leading 0-byte. */
6549 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
6551 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
6552 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
6554 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
6556 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
6561 if (PACKET_remaining(cipher_suites
) > 0) {
6563 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_LENGTH
);
6565 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
6572 sk_SSL_CIPHER_free(sk
);
6573 if (scsvs_out
!= NULL
)
6576 sk_SSL_CIPHER_free(scsvs
);
6579 sk_SSL_CIPHER_free(sk
);
6580 sk_SSL_CIPHER_free(scsvs
);
6584 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
6586 ctx
->max_early_data
= max_early_data
;
6591 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
6593 return ctx
->max_early_data
;
6596 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
6598 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6603 sc
->max_early_data
= max_early_data
;
6608 uint32_t SSL_get_max_early_data(const SSL
*s
)
6610 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6615 return sc
->max_early_data
;
6618 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
6620 ctx
->recv_max_early_data
= recv_max_early_data
;
6625 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
6627 return ctx
->recv_max_early_data
;
6630 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
6632 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6637 sc
->recv_max_early_data
= recv_max_early_data
;
6642 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
6644 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6649 return sc
->recv_max_early_data
;
6652 __owur
unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION
*sc
)
6654 /* Return any active Max Fragment Len extension */
6655 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
))
6656 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6658 /* return current SSL connection setting */
6659 return sc
->max_send_fragment
;
6662 __owur
unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION
*sc
)
6664 /* Return a value regarding an active Max Fragment Len extension */
6665 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
)
6666 && sc
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(sc
->session
))
6667 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6669 /* else limit |split_send_fragment| to current |max_send_fragment| */
6670 if (sc
->split_send_fragment
> sc
->max_send_fragment
)
6671 return sc
->max_send_fragment
;
6673 /* return current SSL connection setting */
6674 return sc
->split_send_fragment
;
6677 int SSL_stateless(SSL
*s
)
6680 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6682 /* TODO(QUIC): This will need further work. */
6686 /* Ensure there is no state left over from a previous invocation */
6692 sc
->s3
.flags
|= TLS1_FLAGS_STATELESS
;
6693 ret
= SSL_accept(s
);
6694 sc
->s3
.flags
&= ~TLS1_FLAGS_STATELESS
;
6696 if (ret
> 0 && sc
->ext
.cookieok
)
6699 if (sc
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(sc
))
6705 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
6707 ctx
->pha_enabled
= val
;
6710 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
6712 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6717 sc
->pha_enabled
= val
;
6720 int SSL_verify_client_post_handshake(SSL
*ssl
)
6722 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6727 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
6728 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
6732 ERR_raise(ERR_LIB_SSL
, SSL_R_NOT_SERVER
);
6736 if (!SSL_is_init_finished(ssl
)) {
6737 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
6741 switch (sc
->post_handshake_auth
) {
6743 ERR_raise(ERR_LIB_SSL
, SSL_R_EXTENSION_NOT_RECEIVED
);
6746 case SSL_PHA_EXT_SENT
:
6747 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
6749 case SSL_PHA_EXT_RECEIVED
:
6751 case SSL_PHA_REQUEST_PENDING
:
6752 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_PENDING
);
6754 case SSL_PHA_REQUESTED
:
6755 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_SENT
);
6759 sc
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
6761 /* checks verify_mode and algorithm_auth */
6762 if (!send_certificate_request(sc
)) {
6763 sc
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
6764 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CONFIG
);
6768 ossl_statem_set_in_init(sc
, 1);
6772 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
6773 SSL_CTX_generate_session_ticket_fn gen_cb
,
6774 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
6777 ctx
->generate_ticket_cb
= gen_cb
;
6778 ctx
->decrypt_ticket_cb
= dec_cb
;
6779 ctx
->ticket_cb_data
= arg
;
6783 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
6784 SSL_allow_early_data_cb_fn cb
,
6787 ctx
->allow_early_data_cb
= cb
;
6788 ctx
->allow_early_data_cb_data
= arg
;
6791 void SSL_set_allow_early_data_cb(SSL
*s
,
6792 SSL_allow_early_data_cb_fn cb
,
6795 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6800 sc
->allow_early_data_cb
= cb
;
6801 sc
->allow_early_data_cb_data
= arg
;
6804 const EVP_CIPHER
*ssl_evp_cipher_fetch(OSSL_LIB_CTX
*libctx
,
6806 const char *properties
)
6808 const EVP_CIPHER
*ciph
;
6810 ciph
= tls_get_cipher_from_engine(nid
);
6815 * If there is no engine cipher then we do an explicit fetch. This may fail
6816 * and that could be ok
6819 ciph
= EVP_CIPHER_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
6825 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
)
6827 /* Don't up-ref an implicit EVP_CIPHER */
6828 if (EVP_CIPHER_get0_provider(cipher
) == NULL
)
6832 * The cipher was explicitly fetched and therefore it is safe to cast
6835 return EVP_CIPHER_up_ref((EVP_CIPHER
*)cipher
);
6838 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
)
6843 if (EVP_CIPHER_get0_provider(cipher
) != NULL
) {
6845 * The cipher was explicitly fetched and therefore it is safe to cast
6848 EVP_CIPHER_free((EVP_CIPHER
*)cipher
);
6852 const EVP_MD
*ssl_evp_md_fetch(OSSL_LIB_CTX
*libctx
,
6854 const char *properties
)
6858 md
= tls_get_digest_from_engine(nid
);
6862 /* Otherwise we do an explicit fetch */
6864 md
= EVP_MD_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
6869 int ssl_evp_md_up_ref(const EVP_MD
*md
)
6871 /* Don't up-ref an implicit EVP_MD */
6872 if (EVP_MD_get0_provider(md
) == NULL
)
6876 * The digest was explicitly fetched and therefore it is safe to cast
6879 return EVP_MD_up_ref((EVP_MD
*)md
);
6882 void ssl_evp_md_free(const EVP_MD
*md
)
6887 if (EVP_MD_get0_provider(md
) != NULL
) {
6889 * The digest was explicitly fetched and therefore it is safe to cast
6892 EVP_MD_free((EVP_MD
*)md
);
6896 int SSL_set0_tmp_dh_pkey(SSL
*s
, EVP_PKEY
*dhpkey
)
6898 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6903 if (!ssl_security(sc
, SSL_SECOP_TMP_DH
,
6904 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
6905 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
6908 EVP_PKEY_free(sc
->cert
->dh_tmp
);
6909 sc
->cert
->dh_tmp
= dhpkey
;
6913 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX
*ctx
, EVP_PKEY
*dhpkey
)
6915 if (!ssl_ctx_security(ctx
, SSL_SECOP_TMP_DH
,
6916 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
6917 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
6920 EVP_PKEY_free(ctx
->cert
->dh_tmp
);
6921 ctx
->cert
->dh_tmp
= dhpkey
;