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 <openssl/core_names.h>
25 #include "internal/cryptlib.h"
26 #include "internal/refcount.h"
27 #include "internal/ktls.h"
29 static int ssl_undefined_function_3(SSL_CONNECTION
*sc
, unsigned char *r
,
30 unsigned char *s
, size_t t
, size_t *u
)
32 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
35 static int ssl_undefined_function_4(SSL_CONNECTION
*sc
, int r
)
37 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
40 static size_t ssl_undefined_function_5(SSL_CONNECTION
*sc
, const char *r
,
41 size_t s
, unsigned char *t
)
43 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
46 static int ssl_undefined_function_6(int r
)
48 return ssl_undefined_function(NULL
);
51 static int ssl_undefined_function_7(SSL_CONNECTION
*sc
, unsigned char *r
,
52 size_t s
, const char *t
, size_t u
,
53 const unsigned char *v
, size_t w
, int x
)
55 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
58 static int ssl_undefined_function_8(SSL_CONNECTION
*sc
)
60 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
63 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
64 ssl_undefined_function_8
,
65 ssl_undefined_function_3
,
66 ssl_undefined_function_4
,
67 ssl_undefined_function_5
,
68 NULL
, /* client_finished_label */
69 0, /* client_finished_label_len */
70 NULL
, /* server_finished_label */
71 0, /* server_finished_label_len */
72 ssl_undefined_function_6
,
73 ssl_undefined_function_7
,
76 struct ssl_async_args
{
80 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
82 int (*func_read
) (SSL
*, void *, size_t, size_t *);
83 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
84 int (*func_other
) (SSL
*);
94 DANETLS_MATCHING_FULL
, 0, NID_undef
97 DANETLS_MATCHING_2256
, 1, NID_sha256
100 DANETLS_MATCHING_2512
, 2, NID_sha512
104 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
106 const EVP_MD
**mdevp
;
108 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
109 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
112 if (dctx
->mdevp
!= NULL
)
115 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
116 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
118 if (mdord
== NULL
|| mdevp
== NULL
) {
124 /* Install default entries */
125 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
128 if (dane_mds
[i
].nid
== NID_undef
||
129 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
131 mdevp
[dane_mds
[i
].mtype
] = md
;
132 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
142 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
144 OPENSSL_free(dctx
->mdevp
);
147 OPENSSL_free(dctx
->mdord
);
152 static void tlsa_free(danetls_record
*t
)
156 OPENSSL_free(t
->data
);
157 EVP_PKEY_free(t
->spki
);
161 static void dane_final(SSL_DANE
*dane
)
163 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
166 OSSL_STACK_OF_X509_free(dane
->certs
);
169 X509_free(dane
->mcert
);
177 * dane_copy - Copy dane configuration, sans verification state.
179 static int ssl_dane_dup(SSL_CONNECTION
*to
, SSL_CONNECTION
*from
)
184 if (!DANETLS_ENABLED(&from
->dane
))
187 num
= sk_danetls_record_num(from
->dane
.trecs
);
188 dane_final(&to
->dane
);
189 to
->dane
.flags
= from
->dane
.flags
;
190 to
->dane
.dctx
= &SSL_CONNECTION_GET_CTX(to
)->dane
;
191 to
->dane
.trecs
= sk_danetls_record_new_reserve(NULL
, num
);
193 if (to
->dane
.trecs
== NULL
) {
194 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
198 for (i
= 0; i
< num
; ++i
) {
199 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
201 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to
), t
->usage
,
202 t
->selector
, t
->mtype
, t
->data
, t
->dlen
) <= 0)
208 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
209 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
213 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
214 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
218 if (mtype
> dctx
->mdmax
) {
219 const EVP_MD
**mdevp
;
221 int n
= ((int)mtype
) + 1;
223 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
228 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
233 /* Zero-fill any gaps */
234 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
242 dctx
->mdevp
[mtype
] = md
;
243 /* Coerce ordinal of disabled matching types to 0 */
244 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
249 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
251 if (mtype
> dane
->dctx
->mdmax
)
253 return dane
->dctx
->mdevp
[mtype
];
256 static int dane_tlsa_add(SSL_DANE
*dane
,
259 uint8_t mtype
, const unsigned char *data
, size_t dlen
)
262 const EVP_MD
*md
= NULL
;
263 int ilen
= (int)dlen
;
267 if (dane
->trecs
== NULL
) {
268 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_NOT_ENABLED
);
272 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
273 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
277 if (usage
> DANETLS_USAGE_LAST
) {
278 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
282 if (selector
> DANETLS_SELECTOR_LAST
) {
283 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
287 if (mtype
!= DANETLS_MATCHING_FULL
) {
288 md
= tlsa_md_get(dane
, mtype
);
290 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
295 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_get_size(md
)) {
296 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
300 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_NULL_DATA
);
304 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
)
308 t
->selector
= selector
;
310 t
->data
= OPENSSL_malloc(dlen
);
311 if (t
->data
== NULL
) {
315 memcpy(t
->data
, data
, dlen
);
318 /* Validate and cache full certificate or public key */
319 if (mtype
== DANETLS_MATCHING_FULL
) {
320 const unsigned char *p
= data
;
322 EVP_PKEY
*pkey
= NULL
;
325 case DANETLS_SELECTOR_CERT
:
326 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
327 dlen
!= (size_t)(p
- data
)) {
329 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
332 if (X509_get0_pubkey(cert
) == NULL
) {
334 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
338 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
344 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
345 * records that contain full certificates of trust-anchors that are
346 * not present in the wire chain. For usage PKIX-TA(0), we augment
347 * the chain with untrusted Full(0) certificates from DNS, in case
348 * they are missing from the chain.
350 if ((dane
->certs
== NULL
&&
351 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
352 !sk_X509_push(dane
->certs
, cert
)) {
353 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
360 case DANETLS_SELECTOR_SPKI
:
361 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
362 dlen
!= (size_t)(p
- data
)) {
364 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
369 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
370 * records that contain full bare keys of trust-anchors that are
371 * not present in the wire chain.
373 if (usage
== DANETLS_USAGE_DANE_TA
)
382 * Find the right insertion point for the new record.
384 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
385 * they can be processed first, as they require no chain building, and no
386 * expiration or hostname checks. Because DANE-EE(3) is numerically
387 * largest, this is accomplished via descending sort by "usage".
389 * We also sort in descending order by matching ordinal to simplify
390 * the implementation of digest agility in the verification code.
392 * The choice of order for the selector is not significant, so we
393 * use the same descending order for consistency.
395 num
= sk_danetls_record_num(dane
->trecs
);
396 for (i
= 0; i
< num
; ++i
) {
397 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
399 if (rec
->usage
> usage
)
401 if (rec
->usage
< usage
)
403 if (rec
->selector
> selector
)
405 if (rec
->selector
< selector
)
407 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
412 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
414 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
417 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
423 * Return 0 if there is only one version configured and it was disabled
424 * at configure time. Return 1 otherwise.
426 static int ssl_check_allowed_versions(int min_version
, int max_version
)
428 int minisdtls
= 0, maxisdtls
= 0;
430 /* Figure out if we're doing DTLS versions or TLS versions */
431 if (min_version
== DTLS1_BAD_VER
432 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
434 if (max_version
== DTLS1_BAD_VER
435 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
437 /* A wildcard version of 0 could be DTLS or TLS. */
438 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
439 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
440 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
444 if (minisdtls
|| maxisdtls
) {
445 /* Do DTLS version checks. */
446 if (min_version
== 0)
447 /* Ignore DTLS1_BAD_VER */
448 min_version
= DTLS1_VERSION
;
449 if (max_version
== 0)
450 max_version
= DTLS1_2_VERSION
;
451 #ifdef OPENSSL_NO_DTLS1_2
452 if (max_version
== DTLS1_2_VERSION
)
453 max_version
= DTLS1_VERSION
;
455 #ifdef OPENSSL_NO_DTLS1
456 if (min_version
== DTLS1_VERSION
)
457 min_version
= DTLS1_2_VERSION
;
459 /* Done massaging versions; do the check. */
461 #ifdef OPENSSL_NO_DTLS1
462 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
463 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
465 #ifdef OPENSSL_NO_DTLS1_2
466 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
467 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
472 /* Regular TLS version checks. */
473 if (min_version
== 0)
474 min_version
= SSL3_VERSION
;
475 if (max_version
== 0)
476 max_version
= TLS1_3_VERSION
;
477 #ifdef OPENSSL_NO_TLS1_3
478 if (max_version
== TLS1_3_VERSION
)
479 max_version
= TLS1_2_VERSION
;
481 #ifdef OPENSSL_NO_TLS1_2
482 if (max_version
== TLS1_2_VERSION
)
483 max_version
= TLS1_1_VERSION
;
485 #ifdef OPENSSL_NO_TLS1_1
486 if (max_version
== TLS1_1_VERSION
)
487 max_version
= TLS1_VERSION
;
489 #ifdef OPENSSL_NO_TLS1
490 if (max_version
== TLS1_VERSION
)
491 max_version
= SSL3_VERSION
;
493 #ifdef OPENSSL_NO_SSL3
494 if (min_version
== SSL3_VERSION
)
495 min_version
= TLS1_VERSION
;
497 #ifdef OPENSSL_NO_TLS1
498 if (min_version
== TLS1_VERSION
)
499 min_version
= TLS1_1_VERSION
;
501 #ifdef OPENSSL_NO_TLS1_1
502 if (min_version
== TLS1_1_VERSION
)
503 min_version
= TLS1_2_VERSION
;
505 #ifdef OPENSSL_NO_TLS1_2
506 if (min_version
== TLS1_2_VERSION
)
507 min_version
= TLS1_3_VERSION
;
509 /* Done massaging versions; do the check. */
511 #ifdef OPENSSL_NO_SSL3
512 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
514 #ifdef OPENSSL_NO_TLS1
515 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
517 #ifdef OPENSSL_NO_TLS1_1
518 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
520 #ifdef OPENSSL_NO_TLS1_2
521 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
523 #ifdef OPENSSL_NO_TLS1_3
524 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
532 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
534 * Define a VPROC function for HP NonStop build ssl library.
535 * This is used by platform version identification tools.
536 * Do not inline this procedure or make it static.
538 # define OPENSSL_VPROC_STRING_(x) x##_SSL
539 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
540 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
541 void OPENSSL_VPROC_FUNC(void) {}
544 static int clear_record_layer(SSL_CONNECTION
*s
)
548 /* We try and reset both record layers even if one fails */
550 ret
= ssl_set_new_record_layer(s
,
551 SSL_CONNECTION_IS_DTLS(s
) ? DTLS_ANY_VERSION
553 OSSL_RECORD_DIRECTION_READ
,
554 OSSL_RECORD_PROTECTION_LEVEL_NONE
,
555 NULL
, 0, NULL
, 0, NULL
, 0, NULL
, 0,
556 NID_undef
, NULL
, NULL
);
558 ret
&= ssl_set_new_record_layer(s
,
559 SSL_CONNECTION_IS_DTLS(s
) ? DTLS_ANY_VERSION
561 OSSL_RECORD_DIRECTION_WRITE
,
562 OSSL_RECORD_PROTECTION_LEVEL_NONE
,
563 NULL
, 0, NULL
, 0, NULL
, 0, NULL
, 0,
564 NID_undef
, NULL
, NULL
);
565 /* SSLfatal already called in the event of failure */
569 int SSL_clear(SSL
*s
)
571 if (s
->method
== NULL
) {
572 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_METHOD_SPECIFIED
);
576 return s
->method
->ssl_reset(s
);
579 int ossl_ssl_connection_reset(SSL
*s
)
581 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
586 if (ssl_clear_bad_session(sc
)) {
587 SSL_SESSION_free(sc
->session
);
590 SSL_SESSION_free(sc
->psksession
);
591 sc
->psksession
= NULL
;
592 OPENSSL_free(sc
->psksession_id
);
593 sc
->psksession_id
= NULL
;
594 sc
->psksession_id_len
= 0;
595 sc
->hello_retry_request
= 0;
596 sc
->sent_tickets
= 0;
602 if (sc
->renegotiate
) {
603 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
607 ossl_statem_clear(sc
);
609 /* TODO(QUIC): Version handling not yet clear */
610 sc
->version
= s
->method
->version
;
611 sc
->client_version
= sc
->version
;
612 sc
->rwstate
= SSL_NOTHING
;
614 BUF_MEM_free(sc
->init_buf
);
616 sc
->first_packet
= 0;
618 sc
->key_update
= SSL_KEY_UPDATE_NONE
;
619 memset(sc
->ext
.compress_certificate_from_peer
, 0,
620 sizeof(sc
->ext
.compress_certificate_from_peer
));
621 sc
->ext
.compress_certificate_sent
= 0;
623 EVP_MD_CTX_free(sc
->pha_dgst
);
626 /* Reset DANE verification result state */
629 X509_free(sc
->dane
.mcert
);
630 sc
->dane
.mcert
= NULL
;
631 sc
->dane
.mtlsa
= NULL
;
633 /* Clear the verification result peername */
634 X509_VERIFY_PARAM_move_peername(sc
->param
, NULL
);
636 /* Clear any shared connection state */
637 OPENSSL_free(sc
->shared_sigalgs
);
638 sc
->shared_sigalgs
= NULL
;
639 sc
->shared_sigalgslen
= 0;
642 * Check to see if we were changed into a different method, if so, revert
645 if (s
->method
!= SSL_CONNECTION_GET_CTX(sc
)->method
) {
646 s
->method
->ssl_deinit(s
);
647 s
->method
= SSL_CONNECTION_GET_CTX(sc
)->method
;
648 if (!s
->method
->ssl_init(s
))
651 if (!s
->method
->ssl_clear(s
))
655 RECORD_LAYER_clear(&sc
->rlayer
);
656 BIO_free(sc
->rlayer
.rrlnext
);
657 sc
->rlayer
.rrlnext
= NULL
;
659 if (!clear_record_layer(sc
))
665 #ifndef OPENSSL_NO_DEPRECATED_3_0
666 /** Used to change an SSL_CTXs default SSL method type */
667 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
669 STACK_OF(SSL_CIPHER
) *sk
;
673 if (!SSL_CTX_set_ciphersuites(ctx
, OSSL_default_ciphersuites())) {
674 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
677 sk
= ssl_create_cipher_list(ctx
,
678 ctx
->tls13_ciphersuites
,
680 &(ctx
->cipher_list_by_id
),
681 OSSL_default_cipher_list(), ctx
->cert
);
682 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
683 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
690 SSL
*SSL_new(SSL_CTX
*ctx
)
693 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_CTX
);
696 if (ctx
->method
== NULL
) {
697 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
700 return ctx
->method
->ssl_new(ctx
);
703 int ossl_ssl_init(SSL
*ssl
, SSL_CTX
*ctx
, int type
)
708 ssl
->lock
= CRYPTO_THREAD_lock_new();
709 if (ssl
->lock
== NULL
)
715 ssl
->method
= ctx
->method
;
717 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, ssl
, &ssl
->ex_data
))
723 SSL
*ossl_ssl_connection_new(SSL_CTX
*ctx
)
728 s
= OPENSSL_zalloc(sizeof(*s
));
733 if (!ossl_ssl_init(ssl
, ctx
, SSL_TYPE_SSL_CONNECTION
)) {
739 #ifndef OPENSSL_NO_QUIC
740 /* set the parent (user visible) ssl to self */
744 RECORD_LAYER_init(&s
->rlayer
, s
);
746 s
->options
= ctx
->options
;
747 s
->dane
.flags
= ctx
->dane
.flags
;
748 s
->min_proto_version
= ctx
->min_proto_version
;
749 s
->max_proto_version
= ctx
->max_proto_version
;
751 s
->max_cert_list
= ctx
->max_cert_list
;
752 s
->max_early_data
= ctx
->max_early_data
;
753 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
754 s
->num_tickets
= ctx
->num_tickets
;
755 s
->pha_enabled
= ctx
->pha_enabled
;
757 /* Shallow copy of the ciphersuites stack */
758 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
759 if (s
->tls13_ciphersuites
== NULL
)
763 * Earlier library versions used to copy the pointer to the CERT, not
764 * its contents; only when setting new parameters for the per-SSL
765 * copy, ssl_cert_new would be called (and the direct reference to
766 * the per-SSL_CTX settings would be lost, but those still were
767 * indirectly accessed for various purposes, and for that reason they
768 * used to be known as s->ctx->default_cert). Now we don't look at the
769 * SSL_CTX's CERT after having duplicated it once.
771 s
->cert
= ssl_cert_dup(ctx
->cert
);
775 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
776 s
->msg_callback
= ctx
->msg_callback
;
777 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
778 s
->verify_mode
= ctx
->verify_mode
;
779 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
780 s
->rlayer
.record_padding_cb
= ctx
->record_padding_cb
;
781 s
->rlayer
.record_padding_arg
= ctx
->record_padding_arg
;
782 s
->rlayer
.block_padding
= ctx
->block_padding
;
783 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
784 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
786 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
787 s
->verify_callback
= ctx
->default_verify_callback
;
788 s
->generate_session_id
= ctx
->generate_session_id
;
790 s
->param
= X509_VERIFY_PARAM_new();
791 if (s
->param
== NULL
)
793 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
794 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
796 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
797 s
->max_send_fragment
= ctx
->max_send_fragment
;
798 s
->split_send_fragment
= ctx
->split_send_fragment
;
799 s
->max_pipelines
= ctx
->max_pipelines
;
800 s
->rlayer
.default_read_buf_len
= ctx
->default_read_buf_len
;
803 s
->ext
.debug_arg
= NULL
;
804 s
->ext
.ticket_expected
= 0;
805 s
->ext
.status_type
= ctx
->ext
.status_type
;
806 s
->ext
.status_expected
= 0;
807 s
->ext
.ocsp
.ids
= NULL
;
808 s
->ext
.ocsp
.exts
= NULL
;
809 s
->ext
.ocsp
.resp
= NULL
;
810 s
->ext
.ocsp
.resp_len
= 0;
812 s
->session_ctx
= ctx
;
813 if (ctx
->ext
.ecpointformats
) {
814 s
->ext
.ecpointformats
=
815 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
816 ctx
->ext
.ecpointformats_len
);
817 if (!s
->ext
.ecpointformats
) {
818 s
->ext
.ecpointformats_len
= 0;
821 s
->ext
.ecpointformats_len
=
822 ctx
->ext
.ecpointformats_len
;
824 if (ctx
->ext
.supportedgroups
) {
825 s
->ext
.supportedgroups
=
826 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
827 ctx
->ext
.supportedgroups_len
828 * sizeof(*ctx
->ext
.supportedgroups
));
829 if (!s
->ext
.supportedgroups
) {
830 s
->ext
.supportedgroups_len
= 0;
833 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
836 #ifndef OPENSSL_NO_NEXTPROTONEG
840 if (ctx
->ext
.alpn
!= NULL
) {
841 s
->ext
.alpn
= OPENSSL_malloc(ctx
->ext
.alpn_len
);
842 if (s
->ext
.alpn
== NULL
) {
846 memcpy(s
->ext
.alpn
, ctx
->ext
.alpn
, ctx
->ext
.alpn_len
);
847 s
->ext
.alpn_len
= ctx
->ext
.alpn_len
;
850 s
->verified_chain
= NULL
;
851 s
->verify_result
= X509_V_OK
;
853 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
854 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
856 s
->key_update
= SSL_KEY_UPDATE_NONE
;
858 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
859 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
861 if (!ssl
->method
->ssl_init(ssl
))
864 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
869 #ifndef OPENSSL_NO_PSK
870 s
->psk_client_callback
= ctx
->psk_client_callback
;
871 s
->psk_server_callback
= ctx
->psk_server_callback
;
873 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
874 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
876 s
->async_cb
= ctx
->async_cb
;
877 s
->async_cb_arg
= ctx
->async_cb_arg
;
881 #ifndef OPENSSL_NO_COMP_ALG
882 memcpy(s
->cert_comp_prefs
, ctx
->cert_comp_prefs
, sizeof(s
->cert_comp_prefs
));
885 #ifndef OPENSSL_NO_CT
886 if (!SSL_set_ct_validation_callback(ssl
, ctx
->ct_validation_callback
,
887 ctx
->ct_validation_callback_arg
))
893 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
896 ERR_raise(ERR_LIB_SSL
, ERR_R_ASN1_LIB
);
899 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
905 int SSL_is_dtls(const SSL
*s
)
907 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
912 return SSL_CONNECTION_IS_DTLS(sc
) ? 1 : 0;
915 int SSL_up_ref(SSL
*s
)
919 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
922 REF_PRINT_COUNT("SSL", s
);
923 REF_ASSERT_ISNT(i
< 2);
924 return ((i
> 1) ? 1 : 0);
927 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
928 unsigned int sid_ctx_len
)
930 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
931 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
934 ctx
->sid_ctx_length
= sid_ctx_len
;
935 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
940 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
941 unsigned int sid_ctx_len
)
943 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
948 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
949 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
952 sc
->sid_ctx_length
= sid_ctx_len
;
953 memcpy(sc
->sid_ctx
, sid_ctx
, sid_ctx_len
);
958 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
960 if (!CRYPTO_THREAD_write_lock(ctx
->lock
))
962 ctx
->generate_session_id
= cb
;
963 CRYPTO_THREAD_unlock(ctx
->lock
);
967 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
969 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
971 if (sc
== NULL
|| !CRYPTO_THREAD_write_lock(ssl
->lock
))
973 sc
->generate_session_id
= cb
;
974 CRYPTO_THREAD_unlock(ssl
->lock
);
978 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
982 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
983 * we can "construct" a session to give us the desired check - i.e. to
984 * find if there's a session in the hash table that would conflict with
985 * any new session built out of this id/id_len and the ssl_version in use
989 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
991 if (sc
== NULL
|| id_len
> sizeof(r
.session_id
))
994 r
.ssl_version
= sc
->version
;
995 r
.session_id_length
= id_len
;
996 memcpy(r
.session_id
, id
, id_len
);
998 if (!CRYPTO_THREAD_read_lock(sc
->session_ctx
->lock
))
1000 p
= lh_SSL_SESSION_retrieve(sc
->session_ctx
->sessions
, &r
);
1001 CRYPTO_THREAD_unlock(sc
->session_ctx
->lock
);
1005 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
1007 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
1010 int SSL_set_purpose(SSL
*s
, int purpose
)
1012 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1017 return X509_VERIFY_PARAM_set_purpose(sc
->param
, purpose
);
1020 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
1022 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
1025 int SSL_set_trust(SSL
*s
, int trust
)
1027 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1032 return X509_VERIFY_PARAM_set_trust(sc
->param
, trust
);
1035 int SSL_set1_host(SSL
*s
, const char *hostname
)
1037 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1042 /* If a hostname is provided and parses as an IP address,
1043 * treat it as such. */
1044 if (hostname
!= NULL
1045 && X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
) == 1)
1048 return X509_VERIFY_PARAM_set1_host(sc
->param
, hostname
, 0);
1051 int SSL_add1_host(SSL
*s
, const char *hostname
)
1053 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1058 /* If a hostname is provided and parses as an IP address,
1059 * treat it as such. */
1062 ASN1_OCTET_STRING
*ip
;
1065 ip
= a2i_IPADDRESS(hostname
);
1067 /* We didn't want it; only to check if it *is* an IP address */
1068 ASN1_OCTET_STRING_free(ip
);
1070 old_ip
= X509_VERIFY_PARAM_get1_ip_asc(sc
->param
);
1073 OPENSSL_free(old_ip
);
1074 /* There can be only one IP address */
1078 return X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
);
1082 return X509_VERIFY_PARAM_add1_host(sc
->param
, hostname
, 0);
1085 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
1087 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1092 X509_VERIFY_PARAM_set_hostflags(sc
->param
, flags
);
1095 const char *SSL_get0_peername(SSL
*s
)
1097 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1102 return X509_VERIFY_PARAM_get0_peername(sc
->param
);
1105 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
1107 return dane_ctx_enable(&ctx
->dane
);
1110 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
1112 unsigned long orig
= ctx
->dane
.flags
;
1114 ctx
->dane
.flags
|= flags
;
1118 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
1120 unsigned long orig
= ctx
->dane
.flags
;
1122 ctx
->dane
.flags
&= ~flags
;
1126 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1129 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1135 if (s
->ctx
->dane
.mdmax
== 0) {
1136 ERR_raise(ERR_LIB_SSL
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1139 if (dane
->trecs
!= NULL
) {
1140 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_ALREADY_ENABLED
);
1145 * Default SNI name. This rejects empty names, while set1_host below
1146 * accepts them and disables hostname checks. To avoid side-effects with
1147 * invalid input, set the SNI name first.
1149 if (sc
->ext
.hostname
== NULL
) {
1150 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1151 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1156 /* Primary RFC6125 reference identifier */
1157 if (!X509_VERIFY_PARAM_set1_host(sc
->param
, basedomain
, 0)) {
1158 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1164 dane
->dctx
= &s
->ctx
->dane
;
1165 dane
->trecs
= sk_danetls_record_new_null();
1167 if (dane
->trecs
== NULL
) {
1168 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
1174 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1177 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1182 orig
= sc
->dane
.flags
;
1184 sc
->dane
.flags
|= flags
;
1188 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1191 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1196 orig
= sc
->dane
.flags
;
1198 sc
->dane
.flags
&= ~flags
;
1202 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1205 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1212 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1216 *mcert
= dane
->mcert
;
1218 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1223 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1224 uint8_t *mtype
, const unsigned char **data
, size_t *dlen
)
1227 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1234 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1238 *usage
= dane
->mtlsa
->usage
;
1240 *selector
= dane
->mtlsa
->selector
;
1242 *mtype
= dane
->mtlsa
->mtype
;
1244 *data
= dane
->mtlsa
->data
;
1246 *dlen
= dane
->mtlsa
->dlen
;
1251 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1253 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1261 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1262 uint8_t mtype
, const unsigned char *data
, size_t dlen
)
1264 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1269 return dane_tlsa_add(&sc
->dane
, usage
, selector
, mtype
, data
, dlen
);
1272 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1275 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1278 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1280 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1283 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1285 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1290 return X509_VERIFY_PARAM_set1(sc
->param
, vpm
);
1293 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1298 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1300 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1308 void SSL_certs_clear(SSL
*s
)
1310 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1315 ssl_cert_clear_certs(sc
->cert
);
1318 void SSL_free(SSL
*s
)
1324 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1325 REF_PRINT_COUNT("SSL", s
);
1328 REF_ASSERT_ISNT(i
< 0);
1330 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1332 if (s
->method
!= NULL
)
1333 s
->method
->ssl_free(s
);
1335 SSL_CTX_free(s
->ctx
);
1336 CRYPTO_THREAD_lock_free(s
->lock
);
1341 void ossl_ssl_connection_free(SSL
*ssl
)
1345 s
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
1349 X509_VERIFY_PARAM_free(s
->param
);
1350 dane_final(&s
->dane
);
1352 /* Ignore return value */
1353 ssl_free_wbio_buffer(s
);
1355 RECORD_LAYER_clear(&s
->rlayer
);
1357 BUF_MEM_free(s
->init_buf
);
1359 /* add extra stuff */
1360 sk_SSL_CIPHER_free(s
->cipher_list
);
1361 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1362 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1363 sk_SSL_CIPHER_free(s
->peer_ciphers
);
1365 /* Make the next call work :-) */
1366 if (s
->session
!= NULL
) {
1367 ssl_clear_bad_session(s
);
1368 SSL_SESSION_free(s
->session
);
1370 SSL_SESSION_free(s
->psksession
);
1371 OPENSSL_free(s
->psksession_id
);
1373 ssl_cert_free(s
->cert
);
1374 OPENSSL_free(s
->shared_sigalgs
);
1375 /* Free up if allocated */
1377 OPENSSL_free(s
->ext
.hostname
);
1378 SSL_CTX_free(s
->session_ctx
);
1379 OPENSSL_free(s
->ext
.ecpointformats
);
1380 OPENSSL_free(s
->ext
.peer_ecpointformats
);
1381 OPENSSL_free(s
->ext
.supportedgroups
);
1382 OPENSSL_free(s
->ext
.peer_supportedgroups
);
1383 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1384 #ifndef OPENSSL_NO_OCSP
1385 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1387 #ifndef OPENSSL_NO_CT
1388 SCT_LIST_free(s
->scts
);
1389 OPENSSL_free(s
->ext
.scts
);
1391 OPENSSL_free(s
->ext
.ocsp
.resp
);
1392 OPENSSL_free(s
->ext
.alpn
);
1393 OPENSSL_free(s
->ext
.tls13_cookie
);
1394 if (s
->clienthello
!= NULL
)
1395 OPENSSL_free(s
->clienthello
->pre_proc_exts
);
1396 OPENSSL_free(s
->clienthello
);
1397 OPENSSL_free(s
->pha_context
);
1398 EVP_MD_CTX_free(s
->pha_dgst
);
1400 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1401 sk_X509_NAME_pop_free(s
->client_ca_names
, X509_NAME_free
);
1403 OSSL_STACK_OF_X509_free(s
->verified_chain
);
1405 if (ssl
->method
!= NULL
)
1406 ssl
->method
->ssl_deinit(ssl
);
1408 ASYNC_WAIT_CTX_free(s
->waitctx
);
1410 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1411 OPENSSL_free(s
->ext
.npn
);
1414 #ifndef OPENSSL_NO_SRTP
1415 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1419 * We do this late. We want to ensure that any other references we held to
1420 * these BIOs are freed first *before* we call BIO_free_all(), because
1421 * BIO_free_all() will only free each BIO in the chain if the number of
1422 * references to the first BIO have dropped to 0
1424 BIO_free_all(s
->wbio
);
1426 BIO_free_all(s
->rbio
);
1430 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1432 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1437 BIO_free_all(sc
->rbio
);
1439 sc
->rlayer
.rrlmethod
->set1_bio(sc
->rlayer
.rrl
, sc
->rbio
);
1442 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1444 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1450 * If the output buffering BIO is still in place, remove it
1452 if (sc
->bbio
!= NULL
)
1453 sc
->wbio
= BIO_pop(sc
->wbio
);
1455 BIO_free_all(sc
->wbio
);
1458 /* Re-attach |bbio| to the new |wbio|. */
1459 if (sc
->bbio
!= NULL
)
1460 sc
->wbio
= BIO_push(sc
->bbio
, sc
->wbio
);
1462 sc
->rlayer
.wrlmethod
->set1_bio(sc
->rlayer
.wrl
, sc
->wbio
);
1465 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1468 * For historical reasons, this function has many different cases in
1469 * ownership handling.
1472 /* If nothing has changed, do nothing */
1473 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1477 * If the two arguments are equal then one fewer reference is granted by the
1478 * caller than we want to take
1480 if (rbio
!= NULL
&& rbio
== wbio
)
1484 * If only the wbio is changed only adopt one reference.
1486 if (rbio
== SSL_get_rbio(s
)) {
1487 SSL_set0_wbio(s
, wbio
);
1491 * There is an asymmetry here for historical reasons. If only the rbio is
1492 * changed AND the rbio and wbio were originally different, then we only
1493 * adopt one reference.
1495 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1496 SSL_set0_rbio(s
, rbio
);
1500 /* Otherwise, adopt both references. */
1501 SSL_set0_rbio(s
, rbio
);
1502 SSL_set0_wbio(s
, wbio
);
1505 BIO
*SSL_get_rbio(const SSL
*s
)
1507 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1515 BIO
*SSL_get_wbio(const SSL
*s
)
1517 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1522 if (sc
->bbio
!= NULL
) {
1524 * If |bbio| is active, the true caller-configured BIO is its
1527 return BIO_next(sc
->bbio
);
1532 int SSL_get_fd(const SSL
*s
)
1534 return SSL_get_rfd(s
);
1537 int SSL_get_rfd(const SSL
*s
)
1542 b
= SSL_get_rbio(s
);
1543 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1545 BIO_get_fd(r
, &ret
);
1549 int SSL_get_wfd(const SSL
*s
)
1554 b
= SSL_get_wbio(s
);
1555 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1557 BIO_get_fd(r
, &ret
);
1561 #ifndef OPENSSL_NO_SOCK
1562 int SSL_set_fd(SSL
*s
, int fd
)
1567 bio
= BIO_new(BIO_s_socket());
1570 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1573 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1574 SSL_set_bio(s
, bio
, bio
);
1575 #ifndef OPENSSL_NO_KTLS
1577 * The new socket is created successfully regardless of ktls_enable.
1578 * ktls_enable doesn't change any functionality of the socket, except
1579 * changing the setsockopt to enable the processing of ktls_start.
1580 * Thus, it is not a problem to call it for non-TLS sockets.
1583 #endif /* OPENSSL_NO_KTLS */
1589 int SSL_set_wfd(SSL
*s
, int fd
)
1591 BIO
*rbio
= SSL_get_rbio(s
);
1593 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1594 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1595 BIO
*bio
= BIO_new(BIO_s_socket());
1598 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1601 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1602 SSL_set0_wbio(s
, bio
);
1603 #ifndef OPENSSL_NO_KTLS
1605 * The new socket is created successfully regardless of ktls_enable.
1606 * ktls_enable doesn't change any functionality of the socket, except
1607 * changing the setsockopt to enable the processing of ktls_start.
1608 * Thus, it is not a problem to call it for non-TLS sockets.
1611 #endif /* OPENSSL_NO_KTLS */
1614 SSL_set0_wbio(s
, rbio
);
1619 int SSL_set_rfd(SSL
*s
, int fd
)
1621 BIO
*wbio
= SSL_get_wbio(s
);
1623 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1624 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1625 BIO
*bio
= BIO_new(BIO_s_socket());
1628 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1631 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1632 SSL_set0_rbio(s
, bio
);
1635 SSL_set0_rbio(s
, wbio
);
1642 /* return length of latest Finished message we sent, copy to 'buf' */
1643 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1646 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1651 ret
= sc
->s3
.tmp
.finish_md_len
;
1654 memcpy(buf
, sc
->s3
.tmp
.finish_md
, count
);
1658 /* return length of latest Finished message we expected, copy to 'buf' */
1659 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1662 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1667 ret
= sc
->s3
.tmp
.peer_finish_md_len
;
1670 memcpy(buf
, sc
->s3
.tmp
.peer_finish_md
, count
);
1674 int SSL_get_verify_mode(const SSL
*s
)
1676 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1681 return sc
->verify_mode
;
1684 int SSL_get_verify_depth(const SSL
*s
)
1686 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1691 return X509_VERIFY_PARAM_get_depth(sc
->param
);
1694 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1695 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1700 return sc
->verify_callback
;
1703 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1705 return ctx
->verify_mode
;
1708 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1710 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1713 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1714 return ctx
->default_verify_callback
;
1717 void SSL_set_verify(SSL
*s
, int mode
,
1718 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1720 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1725 sc
->verify_mode
= mode
;
1726 if (callback
!= NULL
)
1727 sc
->verify_callback
= callback
;
1730 void SSL_set_verify_depth(SSL
*s
, int depth
)
1732 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1737 X509_VERIFY_PARAM_set_depth(sc
->param
, depth
);
1740 void SSL_set_read_ahead(SSL
*s
, int yes
)
1742 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1743 OSSL_PARAM options
[2], *opts
= options
;
1748 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, yes
);
1750 *opts
++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD
,
1751 &sc
->rlayer
.read_ahead
);
1752 *opts
= OSSL_PARAM_construct_end();
1754 /* Ignore return value */
1755 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
1758 int SSL_get_read_ahead(const SSL
*s
)
1760 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1765 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
1768 int SSL_pending(const SSL
*s
)
1770 size_t pending
= s
->method
->ssl_pending(s
);
1773 * SSL_pending cannot work properly if read-ahead is enabled
1774 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1775 * impossible to fix since SSL_pending cannot report errors that may be
1776 * observed while scanning the new data. (Note that SSL_pending() is
1777 * often used as a boolean value, so we'd better not return -1.)
1779 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1780 * we just return INT_MAX.
1782 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1785 int SSL_has_pending(const SSL
*s
)
1788 * Similar to SSL_pending() but returns a 1 to indicate that we have
1789 * processed or unprocessed data available or 0 otherwise (as opposed to the
1790 * number of bytes available). Unlike SSL_pending() this will take into
1791 * account read_ahead data. A 1 return simply indicates that we have data.
1792 * That data may not result in any application data, or we may fail to parse
1793 * the records for some reason.
1795 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1797 /* Check buffered app data if any first */
1798 if (SSL_CONNECTION_IS_DTLS(sc
)) {
1802 iter
= pqueue_iterator(sc
->rlayer
.d
->buffered_app_data
.q
);
1803 while ((item
= pqueue_next(&iter
)) != NULL
) {
1805 if (rdata
->length
> 0)
1810 if (RECORD_LAYER_processed_read_pending(&sc
->rlayer
))
1813 return RECORD_LAYER_read_pending(&sc
->rlayer
);
1816 X509
*SSL_get1_peer_certificate(const SSL
*s
)
1818 X509
*r
= SSL_get0_peer_certificate(s
);
1826 X509
*SSL_get0_peer_certificate(const SSL
*s
)
1828 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1833 if (sc
->session
== NULL
)
1836 return sc
->session
->peer
;
1839 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1842 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1847 if (sc
->session
== NULL
)
1850 r
= sc
->session
->peer_chain
;
1853 * If we are a client, cert_chain includes the peer's own certificate; if
1854 * we are a server, it does not.
1861 * Now in theory, since the calling process own 't' it should be safe to
1862 * modify. We need to be able to read f without being hassled
1864 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1867 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1868 SSL_CONNECTION
*tsc
= SSL_CONNECTION_FROM_SSL_ONLY(t
);
1869 const SSL_CONNECTION
*fsc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(f
);
1871 if (tsc
== NULL
|| fsc
== NULL
)
1874 /* Do we need to do SSL locking? */
1875 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1880 * what if we are setup for one protocol version but want to talk another
1882 if (t
->method
!= f
->method
) {
1883 t
->method
->ssl_deinit(t
);
1884 t
->method
= f
->method
;
1885 if (t
->method
->ssl_init(t
) == 0)
1889 CRYPTO_UP_REF(&fsc
->cert
->references
, &i
, fsc
->cert
->lock
);
1890 ssl_cert_free(tsc
->cert
);
1891 tsc
->cert
= fsc
->cert
;
1892 if (!SSL_set_session_id_context(t
, fsc
->sid_ctx
, (int)fsc
->sid_ctx_length
)) {
1899 /* Fix this so it checks all the valid key/cert options */
1900 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1902 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1903 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1906 if (ctx
->cert
->key
->privatekey
== NULL
) {
1907 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1910 return X509_check_private_key
1911 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1914 /* Fix this function so that it takes an optional type parameter */
1915 int SSL_check_private_key(const SSL
*ssl
)
1917 const SSL_CONNECTION
*sc
;
1919 if ((sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
)) == NULL
) {
1920 ERR_raise(ERR_LIB_SSL
, ERR_R_PASSED_NULL_PARAMETER
);
1923 if (sc
->cert
->key
->x509
== NULL
) {
1924 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1927 if (sc
->cert
->key
->privatekey
== NULL
) {
1928 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1931 return X509_check_private_key(sc
->cert
->key
->x509
,
1932 sc
->cert
->key
->privatekey
);
1935 int SSL_waiting_for_async(SSL
*s
)
1937 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1948 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1950 ASYNC_WAIT_CTX
*ctx
;
1951 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1956 if ((ctx
= sc
->waitctx
) == NULL
)
1958 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1961 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1962 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1964 ASYNC_WAIT_CTX
*ctx
;
1965 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1970 if ((ctx
= sc
->waitctx
) == NULL
)
1972 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1976 int SSL_CTX_set_async_callback(SSL_CTX
*ctx
, SSL_async_callback_fn callback
)
1978 ctx
->async_cb
= callback
;
1982 int SSL_CTX_set_async_callback_arg(SSL_CTX
*ctx
, void *arg
)
1984 ctx
->async_cb_arg
= arg
;
1988 int SSL_set_async_callback(SSL
*s
, SSL_async_callback_fn callback
)
1990 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1995 sc
->async_cb
= callback
;
1999 int SSL_set_async_callback_arg(SSL
*s
, void *arg
)
2001 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2006 sc
->async_cb_arg
= arg
;
2010 int SSL_get_async_status(SSL
*s
, int *status
)
2012 ASYNC_WAIT_CTX
*ctx
;
2013 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2018 if ((ctx
= sc
->waitctx
) == NULL
)
2020 *status
= ASYNC_WAIT_CTX_get_status(ctx
);
2024 int SSL_accept(SSL
*s
)
2026 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2031 if (sc
->handshake_func
== NULL
) {
2032 /* Not properly initialized yet */
2033 SSL_set_accept_state(s
);
2036 return SSL_do_handshake(s
);
2039 int SSL_connect(SSL
*s
)
2041 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2046 if (sc
->handshake_func
== NULL
) {
2047 /* Not properly initialized yet */
2048 SSL_set_connect_state(s
);
2051 return SSL_do_handshake(s
);
2054 long SSL_get_default_timeout(const SSL
*s
)
2056 return (long int)ossl_time2seconds(s
->method
->get_timeout());
2059 static int ssl_async_wait_ctx_cb(void *arg
)
2061 SSL
*s
= (SSL
*)arg
;
2062 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2067 return sc
->async_cb(s
, sc
->async_cb_arg
);
2070 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
2071 int (*func
) (void *))
2074 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2079 if (sc
->waitctx
== NULL
) {
2080 sc
->waitctx
= ASYNC_WAIT_CTX_new();
2081 if (sc
->waitctx
== NULL
)
2083 if (sc
->async_cb
!= NULL
2084 && !ASYNC_WAIT_CTX_set_callback
2085 (sc
->waitctx
, ssl_async_wait_ctx_cb
, s
))
2089 sc
->rwstate
= SSL_NOTHING
;
2090 switch (ASYNC_start_job(&sc
->job
, sc
->waitctx
, &ret
, func
, args
,
2091 sizeof(struct ssl_async_args
))) {
2093 sc
->rwstate
= SSL_NOTHING
;
2094 ERR_raise(ERR_LIB_SSL
, SSL_R_FAILED_TO_INIT_ASYNC
);
2097 sc
->rwstate
= SSL_ASYNC_PAUSED
;
2100 sc
->rwstate
= SSL_ASYNC_NO_JOBS
;
2106 sc
->rwstate
= SSL_NOTHING
;
2107 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
2108 /* Shouldn't happen */
2113 static int ssl_io_intern(void *vargs
)
2115 struct ssl_async_args
*args
;
2121 args
= (struct ssl_async_args
*)vargs
;
2125 if ((sc
= SSL_CONNECTION_FROM_SSL(s
)) == NULL
)
2128 switch (args
->type
) {
2130 return args
->f
.func_read(s
, buf
, num
, &sc
->asyncrw
);
2132 return args
->f
.func_write(s
, buf
, num
, &sc
->asyncrw
);
2134 return args
->f
.func_other(s
);
2139 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2141 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2146 if (sc
->handshake_func
== NULL
) {
2147 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2151 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2152 sc
->rwstate
= SSL_NOTHING
;
2156 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2157 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
2158 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2162 * If we are a client and haven't received the ServerHello etc then we
2165 ossl_statem_check_finish_init(sc
, 0);
2167 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2168 struct ssl_async_args args
;
2174 args
.type
= READFUNC
;
2175 args
.f
.func_read
= s
->method
->ssl_read
;
2177 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2178 *readbytes
= sc
->asyncrw
;
2181 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
2185 int SSL_read(SSL
*s
, void *buf
, int num
)
2191 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2195 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
2198 * The cast is safe here because ret should be <= INT_MAX because num is
2202 ret
= (int)readbytes
;
2207 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2209 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
2216 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2219 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2221 /* TODO(QUIC): This will need special handling for QUIC */
2226 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2227 return SSL_READ_EARLY_DATA_ERROR
;
2230 switch (sc
->early_data_state
) {
2231 case SSL_EARLY_DATA_NONE
:
2232 if (!SSL_in_before(s
)) {
2233 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2234 return SSL_READ_EARLY_DATA_ERROR
;
2238 case SSL_EARLY_DATA_ACCEPT_RETRY
:
2239 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
2240 ret
= SSL_accept(s
);
2243 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
2244 return SSL_READ_EARLY_DATA_ERROR
;
2248 case SSL_EARLY_DATA_READ_RETRY
:
2249 if (sc
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
2250 sc
->early_data_state
= SSL_EARLY_DATA_READING
;
2251 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
2253 * State machine will update early_data_state to
2254 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2257 if (ret
> 0 || (ret
<= 0 && sc
->early_data_state
2258 != SSL_EARLY_DATA_FINISHED_READING
)) {
2259 sc
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
2260 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
2261 : SSL_READ_EARLY_DATA_ERROR
;
2264 sc
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
2267 return SSL_READ_EARLY_DATA_FINISH
;
2270 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2271 return SSL_READ_EARLY_DATA_ERROR
;
2275 int SSL_get_early_data_status(const SSL
*s
)
2277 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
2279 /* TODO(QUIC): This will need special handling for QUIC */
2283 return sc
->ext
.early_data
;
2286 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2288 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2293 if (sc
->handshake_func
== NULL
) {
2294 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2298 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2301 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2302 struct ssl_async_args args
;
2308 args
.type
= READFUNC
;
2309 args
.f
.func_read
= s
->method
->ssl_peek
;
2311 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2312 *readbytes
= sc
->asyncrw
;
2315 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
2319 int SSL_peek(SSL
*s
, void *buf
, int num
)
2325 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2329 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
2332 * The cast is safe here because ret should be <= INT_MAX because num is
2336 ret
= (int)readbytes
;
2342 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2344 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
2351 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2353 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2358 if (sc
->handshake_func
== NULL
) {
2359 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2363 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2364 sc
->rwstate
= SSL_NOTHING
;
2365 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2369 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2370 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
2371 || sc
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
2372 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2375 /* If we are a client and haven't sent the Finished we better do that */
2376 ossl_statem_check_finish_init(sc
, 1);
2378 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2380 struct ssl_async_args args
;
2383 args
.buf
= (void *)buf
;
2385 args
.type
= WRITEFUNC
;
2386 args
.f
.func_write
= s
->method
->ssl_write
;
2388 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2389 *written
= sc
->asyncrw
;
2392 return s
->method
->ssl_write(s
, buf
, num
, written
);
2396 ossl_ssize_t
SSL_sendfile(SSL
*s
, int fd
, off_t offset
, size_t size
, int flags
)
2399 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2404 if (sc
->handshake_func
== NULL
) {
2405 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2409 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2410 sc
->rwstate
= SSL_NOTHING
;
2411 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2415 if (!BIO_get_ktls_send(sc
->wbio
)) {
2416 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2420 /* If we have an alert to send, lets send it */
2421 if (sc
->s3
.alert_dispatch
> 0) {
2422 ret
= (ossl_ssize_t
)s
->method
->ssl_dispatch_alert(s
);
2424 /* SSLfatal() already called if appropriate */
2427 /* if it went, fall through and send more stuff */
2430 sc
->rwstate
= SSL_WRITING
;
2431 if (BIO_flush(sc
->wbio
) <= 0) {
2432 if (!BIO_should_retry(sc
->wbio
)) {
2433 sc
->rwstate
= SSL_NOTHING
;
2436 set_sys_error(EAGAIN
);
2442 #ifdef OPENSSL_NO_KTLS
2443 ERR_raise_data(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
,
2444 "can't call ktls_sendfile(), ktls disabled");
2447 ret
= ktls_sendfile(SSL_get_wfd(s
), fd
, offset
, size
, flags
);
2449 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2450 if ((get_last_sys_error() == EAGAIN
) ||
2451 (get_last_sys_error() == EINTR
) ||
2452 (get_last_sys_error() == EBUSY
))
2453 BIO_set_retry_write(sc
->wbio
);
2456 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2459 sc
->rwstate
= SSL_NOTHING
;
2464 int SSL_write(SSL
*s
, const void *buf
, int num
)
2470 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2474 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
2477 * The cast is safe here because ret should be <= INT_MAX because num is
2486 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2488 int ret
= ssl_write_internal(s
, buf
, num
, written
);
2495 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2497 int ret
, early_data_state
;
2499 uint32_t partialwrite
;
2500 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2502 /* TODO(QUIC): This will need special handling for QUIC */
2506 switch (sc
->early_data_state
) {
2507 case SSL_EARLY_DATA_NONE
:
2509 || !SSL_in_before(s
)
2510 || ((sc
->session
== NULL
|| sc
->session
->ext
.max_early_data
== 0)
2511 && (sc
->psk_use_session_cb
== NULL
))) {
2512 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2517 case SSL_EARLY_DATA_CONNECT_RETRY
:
2518 sc
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2519 ret
= SSL_connect(s
);
2522 sc
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2527 case SSL_EARLY_DATA_WRITE_RETRY
:
2528 sc
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2530 * We disable partial write for early data because we don't keep track
2531 * of how many bytes we've written between the SSL_write_ex() call and
2532 * the flush if the flush needs to be retried)
2534 partialwrite
= sc
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2535 sc
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2536 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2537 sc
->mode
|= partialwrite
;
2539 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2542 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2545 case SSL_EARLY_DATA_WRITE_FLUSH
:
2546 /* The buffering BIO is still in place so we need to flush it */
2547 if (statem_flush(sc
) != 1)
2550 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2553 case SSL_EARLY_DATA_FINISHED_READING
:
2554 case SSL_EARLY_DATA_READ_RETRY
:
2555 early_data_state
= sc
->early_data_state
;
2556 /* We are a server writing to an unauthenticated client */
2557 sc
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2558 ret
= SSL_write_ex(s
, buf
, num
, written
);
2559 /* The buffering BIO is still in place */
2561 (void)BIO_flush(sc
->wbio
);
2562 sc
->early_data_state
= early_data_state
;
2566 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2571 int SSL_shutdown(SSL
*s
)
2574 * Note that this function behaves differently from what one might
2575 * expect. Return values are 0 for no success (yet), 1 for success; but
2576 * calling it once is usually not enough, even if blocking I/O is used
2577 * (see ssl3_shutdown).
2579 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2584 if (sc
->handshake_func
== NULL
) {
2585 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2589 if (!SSL_in_init(s
)) {
2590 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2591 struct ssl_async_args args
;
2593 memset(&args
, 0, sizeof(args
));
2595 args
.type
= OTHERFUNC
;
2596 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2598 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2600 return s
->method
->ssl_shutdown(s
);
2603 ERR_raise(ERR_LIB_SSL
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2608 int SSL_key_update(SSL
*s
, int updatetype
)
2610 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2615 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
2616 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2620 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2621 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2622 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2626 if (!SSL_is_init_finished(s
)) {
2627 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
2631 if (RECORD_LAYER_write_pending(&sc
->rlayer
)) {
2632 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_WRITE_RETRY
);
2636 ossl_statem_set_in_init(sc
, 1);
2637 sc
->key_update
= updatetype
;
2641 int SSL_get_key_update_type(const SSL
*s
)
2643 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
2648 return sc
->key_update
;
2652 * Can we accept a renegotiation request? If yes, set the flag and
2653 * return 1 if yes. If not, raise error and return 0.
2655 static int can_renegotiate(const SSL_CONNECTION
*sc
)
2657 if (SSL_CONNECTION_IS_TLS13(sc
)) {
2658 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2662 if ((sc
->options
& SSL_OP_NO_RENEGOTIATION
) != 0) {
2663 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_RENEGOTIATION
);
2670 int SSL_renegotiate(SSL
*s
)
2672 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2677 if (!can_renegotiate(sc
))
2680 sc
->renegotiate
= 1;
2681 sc
->new_session
= 1;
2682 return s
->method
->ssl_renegotiate(s
);
2685 int SSL_renegotiate_abbreviated(SSL
*s
)
2687 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2692 if (!can_renegotiate(sc
))
2695 sc
->renegotiate
= 1;
2696 sc
->new_session
= 0;
2697 return s
->method
->ssl_renegotiate(s
);
2700 int SSL_renegotiate_pending(const SSL
*s
)
2702 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2708 * becomes true when negotiation is requested; false again once a
2709 * handshake has finished
2711 return (sc
->renegotiate
!= 0);
2714 int SSL_new_session_ticket(SSL
*s
)
2716 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2721 /* If we are in init because we're sending tickets, okay to send more. */
2722 if ((SSL_in_init(s
) && sc
->ext
.extra_tickets_expected
== 0)
2723 || SSL_IS_FIRST_HANDSHAKE(sc
) || !sc
->server
2724 || !SSL_CONNECTION_IS_TLS13(sc
))
2726 sc
->ext
.extra_tickets_expected
++;
2727 if (!RECORD_LAYER_write_pending(&sc
->rlayer
) && !SSL_in_init(s
))
2728 ossl_statem_set_in_init(sc
, 1);
2732 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2735 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2737 /* TODO(QUIC): Special handling for some ctrls will be needed */
2742 case SSL_CTRL_GET_READ_AHEAD
:
2743 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2744 case SSL_CTRL_SET_READ_AHEAD
:
2745 l
= RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2746 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, larg
);
2749 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2750 sc
->msg_callback_arg
= parg
;
2755 OSSL_PARAM options
[2], *opts
= options
;
2759 *opts
++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE
,
2761 *opts
= OSSL_PARAM_construct_end();
2763 /* Ignore return value */
2764 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
2768 case SSL_CTRL_CLEAR_MODE
:
2769 return (sc
->mode
&= ~larg
);
2770 case SSL_CTRL_GET_MAX_CERT_LIST
:
2771 return (long)sc
->max_cert_list
;
2772 case SSL_CTRL_SET_MAX_CERT_LIST
:
2775 l
= (long)sc
->max_cert_list
;
2776 sc
->max_cert_list
= (size_t)larg
;
2778 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2779 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2781 #ifndef OPENSSL_NO_KTLS
2782 if (sc
->wbio
!= NULL
&& BIO_get_ktls_send(sc
->wbio
))
2784 #endif /* OPENSSL_NO_KTLS */
2785 sc
->max_send_fragment
= larg
;
2786 if (sc
->max_send_fragment
< sc
->split_send_fragment
)
2787 sc
->split_send_fragment
= sc
->max_send_fragment
;
2788 sc
->rlayer
.wrlmethod
->set_max_frag_len(sc
->rlayer
.wrl
, larg
);
2790 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2791 if ((size_t)larg
> sc
->max_send_fragment
|| larg
== 0)
2793 sc
->split_send_fragment
= larg
;
2795 case SSL_CTRL_SET_MAX_PIPELINES
:
2796 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2798 sc
->max_pipelines
= larg
;
2799 if (sc
->rlayer
.rrlmethod
->set_max_pipelines
!= NULL
)
2800 sc
->rlayer
.rrlmethod
->set_max_pipelines(sc
->rlayer
.rrl
, (size_t)larg
);
2802 case SSL_CTRL_GET_RI_SUPPORT
:
2803 return sc
->s3
.send_connection_binding
;
2804 case SSL_CTRL_SET_RETRY_VERIFY
:
2805 sc
->rwstate
= SSL_RETRY_VERIFY
;
2807 case SSL_CTRL_CERT_FLAGS
:
2808 return (sc
->cert
->cert_flags
|= larg
);
2809 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2810 return (sc
->cert
->cert_flags
&= ~larg
);
2812 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2814 if (sc
->s3
.tmp
.ciphers_raw
== NULL
)
2816 *(unsigned char **)parg
= sc
->s3
.tmp
.ciphers_raw
;
2817 return (int)sc
->s3
.tmp
.ciphers_rawlen
;
2819 return TLS_CIPHER_LEN
;
2821 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2822 if (!sc
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(sc
))
2824 if (sc
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2828 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2829 return ssl_check_allowed_versions(larg
, sc
->max_proto_version
)
2830 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2831 &sc
->min_proto_version
);
2832 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2833 return sc
->min_proto_version
;
2834 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2835 return ssl_check_allowed_versions(sc
->min_proto_version
, larg
)
2836 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2837 &sc
->max_proto_version
);
2838 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2839 return sc
->max_proto_version
;
2841 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2845 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2847 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2853 case SSL_CTRL_SET_MSG_CALLBACK
:
2854 sc
->msg_callback
= (void (*)
2855 (int write_p
, int version
, int content_type
,
2856 const void *buf
, size_t len
, SSL
*ssl
,
2861 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2865 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2867 return ctx
->sessions
;
2870 static int ssl_tsan_load(SSL_CTX
*ctx
, TSAN_QUALIFIER
int *stat
)
2874 if (ssl_tsan_lock(ctx
)) {
2875 res
= tsan_load(stat
);
2876 ssl_tsan_unlock(ctx
);
2881 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2884 /* For some cases with ctx == NULL perform syntax checks */
2887 case SSL_CTRL_SET_GROUPS_LIST
:
2888 return tls1_set_groups_list(ctx
, NULL
, NULL
, parg
);
2889 case SSL_CTRL_SET_SIGALGS_LIST
:
2890 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2891 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2898 case SSL_CTRL_GET_READ_AHEAD
:
2899 return ctx
->read_ahead
;
2900 case SSL_CTRL_SET_READ_AHEAD
:
2901 l
= ctx
->read_ahead
;
2902 ctx
->read_ahead
= larg
;
2905 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2906 ctx
->msg_callback_arg
= parg
;
2909 case SSL_CTRL_GET_MAX_CERT_LIST
:
2910 return (long)ctx
->max_cert_list
;
2911 case SSL_CTRL_SET_MAX_CERT_LIST
:
2914 l
= (long)ctx
->max_cert_list
;
2915 ctx
->max_cert_list
= (size_t)larg
;
2918 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2921 l
= (long)ctx
->session_cache_size
;
2922 ctx
->session_cache_size
= (size_t)larg
;
2924 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2925 return (long)ctx
->session_cache_size
;
2926 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2927 l
= ctx
->session_cache_mode
;
2928 ctx
->session_cache_mode
= larg
;
2930 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2931 return ctx
->session_cache_mode
;
2933 case SSL_CTRL_SESS_NUMBER
:
2934 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2935 case SSL_CTRL_SESS_CONNECT
:
2936 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect
);
2937 case SSL_CTRL_SESS_CONNECT_GOOD
:
2938 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_good
);
2939 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2940 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_renegotiate
);
2941 case SSL_CTRL_SESS_ACCEPT
:
2942 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept
);
2943 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2944 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_good
);
2945 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2946 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_renegotiate
);
2947 case SSL_CTRL_SESS_HIT
:
2948 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_hit
);
2949 case SSL_CTRL_SESS_CB_HIT
:
2950 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cb_hit
);
2951 case SSL_CTRL_SESS_MISSES
:
2952 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_miss
);
2953 case SSL_CTRL_SESS_TIMEOUTS
:
2954 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_timeout
);
2955 case SSL_CTRL_SESS_CACHE_FULL
:
2956 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cache_full
);
2958 return (ctx
->mode
|= larg
);
2959 case SSL_CTRL_CLEAR_MODE
:
2960 return (ctx
->mode
&= ~larg
);
2961 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2962 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2964 ctx
->max_send_fragment
= larg
;
2965 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2966 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2968 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2969 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2971 ctx
->split_send_fragment
= larg
;
2973 case SSL_CTRL_SET_MAX_PIPELINES
:
2974 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2976 ctx
->max_pipelines
= larg
;
2978 case SSL_CTRL_CERT_FLAGS
:
2979 return (ctx
->cert
->cert_flags
|= larg
);
2980 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2981 return (ctx
->cert
->cert_flags
&= ~larg
);
2982 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2983 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2984 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2985 &ctx
->min_proto_version
);
2986 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2987 return ctx
->min_proto_version
;
2988 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2989 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2990 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2991 &ctx
->max_proto_version
);
2992 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2993 return ctx
->max_proto_version
;
2995 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2999 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
3002 case SSL_CTRL_SET_MSG_CALLBACK
:
3003 ctx
->msg_callback
= (void (*)
3004 (int write_p
, int version
, int content_type
,
3005 const void *buf
, size_t len
, SSL
*ssl
,
3010 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
3014 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
3023 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
3024 const SSL_CIPHER
*const *bp
)
3026 if ((*ap
)->id
> (*bp
)->id
)
3028 if ((*ap
)->id
< (*bp
)->id
)
3034 * return a STACK of the ciphers available for the SSL and in order of
3037 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
3039 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3042 if (sc
->cipher_list
!= NULL
) {
3043 return sc
->cipher_list
;
3044 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
3045 return s
->ctx
->cipher_list
;
3051 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
3053 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3055 if (sc
== NULL
|| !sc
->server
)
3057 return sc
->peer_ciphers
;
3060 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
3062 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
3064 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3069 ciphers
= SSL_get_ciphers(s
);
3072 if (!ssl_set_client_disabled(sc
))
3074 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
3075 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
3076 if (!ssl_cipher_disabled(sc
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
3078 sk
= sk_SSL_CIPHER_new_null();
3081 if (!sk_SSL_CIPHER_push(sk
, c
)) {
3082 sk_SSL_CIPHER_free(sk
);
3090 /** return a STACK of the ciphers available for the SSL and in order of
3092 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL_CONNECTION
*s
)
3095 if (s
->cipher_list_by_id
!= NULL
)
3096 return s
->cipher_list_by_id
;
3097 else if (s
->ssl
.ctx
!= NULL
3098 && s
->ssl
.ctx
->cipher_list_by_id
!= NULL
)
3099 return s
->ssl
.ctx
->cipher_list_by_id
;
3104 /** The old interface to get the same thing as SSL_get_ciphers() */
3105 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
3107 const SSL_CIPHER
*c
;
3108 STACK_OF(SSL_CIPHER
) *sk
;
3112 sk
= SSL_get_ciphers(s
);
3113 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
3115 c
= sk_SSL_CIPHER_value(sk
, n
);
3121 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3123 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
3126 return ctx
->cipher_list
;
3131 * Distinguish between ciphers controlled by set_ciphersuite() and
3132 * set_cipher_list() when counting.
3134 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER
) *sk
)
3137 const SSL_CIPHER
*c
;
3141 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); ++i
) {
3142 c
= sk_SSL_CIPHER_value(sk
, i
);
3143 if (c
->min_tls
>= TLS1_3_VERSION
)
3150 /** specify the ciphers to be used by default by the SSL_CTX */
3151 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
3153 STACK_OF(SSL_CIPHER
) *sk
;
3155 sk
= ssl_create_cipher_list(ctx
, ctx
->tls13_ciphersuites
,
3156 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
3159 * ssl_create_cipher_list may return an empty stack if it was unable to
3160 * find a cipher matching the given rule string (for example if the rule
3161 * string specifies a cipher which has been disabled). This is not an
3162 * error as far as ssl_create_cipher_list is concerned, and hence
3163 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3167 else if (cipher_list_tls12_num(sk
) == 0) {
3168 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3174 /** specify the ciphers to be used by the SSL */
3175 int SSL_set_cipher_list(SSL
*s
, const char *str
)
3177 STACK_OF(SSL_CIPHER
) *sk
;
3178 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3183 sk
= ssl_create_cipher_list(s
->ctx
, sc
->tls13_ciphersuites
,
3184 &sc
->cipher_list
, &sc
->cipher_list_by_id
, str
,
3186 /* see comment in SSL_CTX_set_cipher_list */
3189 else if (cipher_list_tls12_num(sk
) == 0) {
3190 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3196 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
3199 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
3200 const SSL_CIPHER
*c
;
3202 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3208 || sc
->peer_ciphers
== NULL
3213 clntsk
= sc
->peer_ciphers
;
3214 srvrsk
= SSL_get_ciphers(s
);
3215 if (clntsk
== NULL
|| srvrsk
== NULL
)
3218 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
3221 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
3224 c
= sk_SSL_CIPHER_value(clntsk
, i
);
3225 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
3228 n
= strlen(c
->name
);
3245 * Return the requested servername (SNI) value. Note that the behaviour varies
3247 * - whether this is called by the client or the server,
3248 * - if we are before or during/after the handshake,
3249 * - if a resumption or normal handshake is being attempted/has occurred
3250 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3252 * Note that only the host_name type is defined (RFC 3546).
3254 const char *SSL_get_servername(const SSL
*s
, const int type
)
3256 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3263 * If we don't know if we are the client or the server yet then we assume
3266 server
= sc
->handshake_func
== NULL
? 0 : sc
->server
;
3268 if (type
!= TLSEXT_NAMETYPE_host_name
)
3274 * In TLSv1.3 on the server SNI is not associated with the session
3275 * but in TLSv1.2 or below it is.
3277 * Before the handshake:
3280 * During/after the handshake (TLSv1.2 or below resumption occurred):
3281 * - If a servername was accepted by the server in the original
3282 * handshake then it will return that servername, or NULL otherwise.
3284 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3285 * - The function will return the servername requested by the client in
3286 * this handshake or NULL if none was requested.
3288 if (sc
->hit
&& !SSL_CONNECTION_IS_TLS13(sc
))
3289 return sc
->session
->ext
.hostname
;
3294 * Before the handshake:
3295 * - If a servername has been set via a call to
3296 * SSL_set_tlsext_host_name() then it will return that servername
3297 * - If one has not been set, but a TLSv1.2 resumption is being
3298 * attempted and the session from the original handshake had a
3299 * servername accepted by the server then it will return that
3301 * - Otherwise it returns NULL
3303 * During/after the handshake (TLSv1.2 or below resumption occurred):
3304 * - If the session from the original handshake had a servername accepted
3305 * by the server then it will return that servername.
3306 * - Otherwise it returns the servername set via
3307 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3309 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3310 * - It will return the servername set via SSL_set_tlsext_host_name()
3311 * (or NULL if it was not called).
3313 if (SSL_in_before(s
)) {
3314 if (sc
->ext
.hostname
== NULL
3315 && sc
->session
!= NULL
3316 && sc
->session
->ssl_version
!= TLS1_3_VERSION
)
3317 return sc
->session
->ext
.hostname
;
3319 if (!SSL_CONNECTION_IS_TLS13(sc
) && sc
->hit
3320 && sc
->session
->ext
.hostname
!= NULL
)
3321 return sc
->session
->ext
.hostname
;
3325 return sc
->ext
.hostname
;
3328 int SSL_get_servername_type(const SSL
*s
)
3330 if (SSL_get_servername(s
, TLSEXT_NAMETYPE_host_name
) != NULL
)
3331 return TLSEXT_NAMETYPE_host_name
;
3336 * SSL_select_next_proto implements the standard protocol selection. It is
3337 * expected that this function is called from the callback set by
3338 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3339 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3340 * not included in the length. A byte string of length 0 is invalid. No byte
3341 * string may be truncated. The current, but experimental algorithm for
3342 * selecting the protocol is: 1) If the server doesn't support NPN then this
3343 * is indicated to the callback. In this case, the client application has to
3344 * abort the connection or have a default application level protocol. 2) If
3345 * the server supports NPN, but advertises an empty list then the client
3346 * selects the first protocol in its list, but indicates via the API that this
3347 * fallback case was enacted. 3) Otherwise, the client finds the first
3348 * protocol in the server's list that it supports and selects this protocol.
3349 * This is because it's assumed that the server has better information about
3350 * which protocol a client should use. 4) If the client doesn't support any
3351 * of the server's advertised protocols, then this is treated the same as
3352 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3353 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3355 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
3356 const unsigned char *server
,
3357 unsigned int server_len
,
3358 const unsigned char *client
, unsigned int client_len
)
3361 const unsigned char *result
;
3362 int status
= OPENSSL_NPN_UNSUPPORTED
;
3365 * For each protocol in server preference order, see if we support it.
3367 for (i
= 0; i
< server_len
;) {
3368 for (j
= 0; j
< client_len
;) {
3369 if (server
[i
] == client
[j
] &&
3370 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
3371 /* We found a match */
3372 result
= &server
[i
];
3373 status
= OPENSSL_NPN_NEGOTIATED
;
3383 /* There's no overlap between our protocols and the server's list. */
3385 status
= OPENSSL_NPN_NO_OVERLAP
;
3388 *out
= (unsigned char *)result
+ 1;
3389 *outlen
= result
[0];
3393 #ifndef OPENSSL_NO_NEXTPROTONEG
3395 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3396 * client's requested protocol for this connection and returns 0. If the
3397 * client didn't request any protocol, then *data is set to NULL. Note that
3398 * the client can request any protocol it chooses. The value returned from
3399 * this function need not be a member of the list of supported protocols
3400 * provided by the callback.
3402 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
3405 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3408 /* We have no other way to indicate error */
3414 *data
= sc
->ext
.npn
;
3415 if (*data
== NULL
) {
3418 *len
= (unsigned int)sc
->ext
.npn_len
;
3423 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3424 * a TLS server needs a list of supported protocols for Next Protocol
3425 * Negotiation. The returned list must be in wire format. The list is
3426 * returned by setting |out| to point to it and |outlen| to its length. This
3427 * memory will not be modified, but one should assume that the SSL* keeps a
3428 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3429 * wishes to advertise. Otherwise, no such extension will be included in the
3432 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
3433 SSL_CTX_npn_advertised_cb_func cb
,
3436 ctx
->ext
.npn_advertised_cb
= cb
;
3437 ctx
->ext
.npn_advertised_cb_arg
= arg
;
3441 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3442 * client needs to select a protocol from the server's provided list. |out|
3443 * must be set to point to the selected protocol (which may be within |in|).
3444 * The length of the protocol name must be written into |outlen|. The
3445 * server's advertised protocols are provided in |in| and |inlen|. The
3446 * callback can assume that |in| is syntactically valid. The client must
3447 * select a protocol. It is fatal to the connection if this callback returns
3448 * a value other than SSL_TLSEXT_ERR_OK.
3450 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
3451 SSL_CTX_npn_select_cb_func cb
,
3454 ctx
->ext
.npn_select_cb
= cb
;
3455 ctx
->ext
.npn_select_cb_arg
= arg
;
3459 static int alpn_value_ok(const unsigned char *protos
, unsigned int protos_len
)
3463 if (protos_len
< 2 || protos
== NULL
)
3466 for (idx
= 0; idx
< protos_len
; idx
+= protos
[idx
] + 1) {
3467 if (protos
[idx
] == 0)
3470 return idx
== protos_len
;
3473 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3474 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3475 * length-prefixed strings). Returns 0 on success.
3477 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
3478 unsigned int protos_len
)
3480 unsigned char *alpn
;
3482 if (protos_len
== 0 || protos
== NULL
) {
3483 OPENSSL_free(ctx
->ext
.alpn
);
3484 ctx
->ext
.alpn
= NULL
;
3485 ctx
->ext
.alpn_len
= 0;
3488 /* Not valid per RFC */
3489 if (!alpn_value_ok(protos
, protos_len
))
3492 alpn
= OPENSSL_memdup(protos
, protos_len
);
3495 OPENSSL_free(ctx
->ext
.alpn
);
3496 ctx
->ext
.alpn
= alpn
;
3497 ctx
->ext
.alpn_len
= protos_len
;
3503 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3504 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3505 * length-prefixed strings). Returns 0 on success.
3507 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
3508 unsigned int protos_len
)
3510 unsigned char *alpn
;
3511 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
3516 if (protos_len
== 0 || protos
== NULL
) {
3517 OPENSSL_free(sc
->ext
.alpn
);
3518 sc
->ext
.alpn
= NULL
;
3519 sc
->ext
.alpn_len
= 0;
3522 /* Not valid per RFC */
3523 if (!alpn_value_ok(protos
, protos_len
))
3526 alpn
= OPENSSL_memdup(protos
, protos_len
);
3529 OPENSSL_free(sc
->ext
.alpn
);
3530 sc
->ext
.alpn
= alpn
;
3531 sc
->ext
.alpn_len
= protos_len
;
3537 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3538 * called during ClientHello processing in order to select an ALPN protocol
3539 * from the client's list of offered protocols.
3541 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
3542 SSL_CTX_alpn_select_cb_func cb
,
3545 ctx
->ext
.alpn_select_cb
= cb
;
3546 ctx
->ext
.alpn_select_cb_arg
= arg
;
3550 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3551 * On return it sets |*data| to point to |*len| bytes of protocol name
3552 * (not including the leading length-prefix byte). If the server didn't
3553 * respond with a negotiated protocol then |*len| will be zero.
3555 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
3558 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
3561 /* We have no other way to indicate error */
3567 *data
= sc
->s3
.alpn_selected
;
3571 *len
= (unsigned int)sc
->s3
.alpn_selected_len
;
3574 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
3575 const char *label
, size_t llen
,
3576 const unsigned char *context
, size_t contextlen
,
3579 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3584 if (sc
->session
== NULL
3585 || (sc
->version
< TLS1_VERSION
&& sc
->version
!= DTLS1_BAD_VER
))
3588 return s
->method
->ssl3_enc
->export_keying_material(sc
, out
, olen
, label
,
3590 contextlen
, use_context
);
3593 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
3594 const char *label
, size_t llen
,
3595 const unsigned char *context
,
3598 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3603 if (sc
->version
!= TLS1_3_VERSION
)
3606 return tls13_export_keying_material_early(sc
, out
, olen
, label
, llen
,
3607 context
, contextlen
);
3610 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
3612 const unsigned char *session_id
= a
->session_id
;
3614 unsigned char tmp_storage
[4];
3616 if (a
->session_id_length
< sizeof(tmp_storage
)) {
3617 memset(tmp_storage
, 0, sizeof(tmp_storage
));
3618 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
3619 session_id
= tmp_storage
;
3623 ((unsigned long)session_id
[0]) |
3624 ((unsigned long)session_id
[1] << 8L) |
3625 ((unsigned long)session_id
[2] << 16L) |
3626 ((unsigned long)session_id
[3] << 24L);
3631 * NB: If this function (or indeed the hash function which uses a sort of
3632 * coarser function than this one) is changed, ensure
3633 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3634 * being able to construct an SSL_SESSION that will collide with any existing
3635 * session with a matching session ID.
3637 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
3639 if (a
->ssl_version
!= b
->ssl_version
)
3641 if (a
->session_id_length
!= b
->session_id_length
)
3643 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
3647 * These wrapper functions should remain rather than redeclaring
3648 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3649 * variable. The reason is that the functions aren't static, they're exposed
3653 SSL_CTX
*SSL_CTX_new_ex(OSSL_LIB_CTX
*libctx
, const char *propq
,
3654 const SSL_METHOD
*meth
)
3656 SSL_CTX
*ret
= NULL
;
3657 #ifndef OPENSSL_NO_COMP_ALG
3662 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_METHOD_PASSED
);
3666 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
3669 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3670 ERR_raise(ERR_LIB_SSL
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
3673 ret
= OPENSSL_zalloc(sizeof(*ret
));
3677 /* Init the reference counting before any call to SSL_CTX_free */
3678 ret
->references
= 1;
3679 ret
->lock
= CRYPTO_THREAD_lock_new();
3680 if (ret
->lock
== NULL
) {
3681 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3685 #ifdef TSAN_REQUIRES_LOCKING
3686 ret
->tsan_lock
= CRYPTO_THREAD_lock_new();
3687 if (ret
->tsan_lock
== NULL
) {
3688 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3693 ret
->libctx
= libctx
;
3694 if (propq
!= NULL
) {
3695 ret
->propq
= OPENSSL_strdup(propq
);
3696 if (ret
->propq
== NULL
)
3701 ret
->min_proto_version
= 0;
3702 ret
->max_proto_version
= 0;
3703 ret
->mode
= SSL_MODE_AUTO_RETRY
;
3704 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
3705 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
3706 /* We take the system default. */
3707 ret
->session_timeout
= meth
->get_timeout();
3708 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3709 ret
->verify_mode
= SSL_VERIFY_NONE
;
3710 if ((ret
->cert
= ssl_cert_new()) == NULL
) {
3711 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3715 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3716 if (ret
->sessions
== NULL
) {
3717 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3720 ret
->cert_store
= X509_STORE_new();
3721 if (ret
->cert_store
== NULL
) {
3722 ERR_raise(ERR_LIB_SSL
, ERR_R_X509_LIB
);
3725 #ifndef OPENSSL_NO_CT
3726 ret
->ctlog_store
= CTLOG_STORE_new_ex(libctx
, propq
);
3727 if (ret
->ctlog_store
== NULL
) {
3728 ERR_raise(ERR_LIB_SSL
, ERR_R_CT_LIB
);
3733 /* initialize cipher/digest methods table */
3734 if (!ssl_load_ciphers(ret
))
3736 /* initialise sig algs */
3737 if (!ssl_setup_sig_algs(ret
))
3740 if (!ssl_load_groups(ret
))
3743 if (!SSL_CTX_set_ciphersuites(ret
, OSSL_default_ciphersuites())) {
3744 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3748 if (!ssl_create_cipher_list(ret
,
3749 ret
->tls13_ciphersuites
,
3750 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3751 OSSL_default_cipher_list(), ret
->cert
)
3752 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3753 ERR_raise(ERR_LIB_SSL
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3757 ret
->param
= X509_VERIFY_PARAM_new();
3758 if (ret
->param
== NULL
) {
3759 ERR_raise(ERR_LIB_SSL
, ERR_R_X509_LIB
);
3764 * If these aren't available from the provider we'll get NULL returns.
3765 * That's fine but will cause errors later if SSLv3 is negotiated
3767 ret
->md5
= ssl_evp_md_fetch(libctx
, NID_md5
, propq
);
3768 ret
->sha1
= ssl_evp_md_fetch(libctx
, NID_sha1
, propq
);
3770 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
) {
3771 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3775 if ((ret
->client_ca_names
= sk_X509_NAME_new_null()) == NULL
) {
3776 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3780 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
)) {
3781 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
3785 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
3788 /* No compression for DTLS */
3789 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3790 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3792 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3793 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3795 /* Setup RFC5077 ticket keys */
3796 if ((RAND_bytes_ex(libctx
, ret
->ext
.tick_key_name
,
3797 sizeof(ret
->ext
.tick_key_name
), 0) <= 0)
3798 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_hmac_key
,
3799 sizeof(ret
->ext
.secure
->tick_hmac_key
), 0) <= 0)
3800 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_aes_key
,
3801 sizeof(ret
->ext
.secure
->tick_aes_key
), 0) <= 0))
3802 ret
->options
|= SSL_OP_NO_TICKET
;
3804 if (RAND_priv_bytes_ex(libctx
, ret
->ext
.cookie_hmac_key
,
3805 sizeof(ret
->ext
.cookie_hmac_key
), 0) <= 0) {
3806 ERR_raise(ERR_LIB_SSL
, ERR_R_RAND_LIB
);
3810 #ifndef OPENSSL_NO_SRP
3811 if (!ssl_ctx_srp_ctx_init_intern(ret
)) {
3812 ERR_raise(ERR_LIB_SSL
, ERR_R_SSL_LIB
);
3816 #ifndef OPENSSL_NO_ENGINE
3817 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3818 # define eng_strx(x) #x
3819 # define eng_str(x) eng_strx(x)
3820 /* Use specific client engine automatically... ignore errors */
3823 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3826 ENGINE_load_builtin_engines();
3827 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3829 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3835 #ifndef OPENSSL_NO_COMP_ALG
3837 * Set the default order: brotli, zlib, zstd
3838 * Including only those enabled algorithms
3840 memset(ret
->cert_comp_prefs
, 0, sizeof(ret
->cert_comp_prefs
));
3842 if (ossl_comp_has_alg(TLSEXT_comp_cert_brotli
))
3843 ret
->cert_comp_prefs
[i
++] = TLSEXT_comp_cert_brotli
;
3844 if (ossl_comp_has_alg(TLSEXT_comp_cert_zlib
))
3845 ret
->cert_comp_prefs
[i
++] = TLSEXT_comp_cert_zlib
;
3846 if (ossl_comp_has_alg(TLSEXT_comp_cert_zstd
))
3847 ret
->cert_comp_prefs
[i
++] = TLSEXT_comp_cert_zstd
;
3850 * Disable compression by default to prevent CRIME. Applications can
3851 * re-enable compression by configuring
3852 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3853 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3854 * middlebox compatibility by default. This may be disabled by default in
3855 * a later OpenSSL version.
3857 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3859 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3862 * We cannot usefully set a default max_early_data here (which gets
3863 * propagated in SSL_new(), for the following reason: setting the
3864 * SSL field causes tls_construct_stoc_early_data() to tell the
3865 * client that early data will be accepted when constructing a TLS 1.3
3866 * session ticket, and the client will accordingly send us early data
3867 * when using that ticket (if the client has early data to send).
3868 * However, in order for the early data to actually be consumed by
3869 * the application, the application must also have calls to
3870 * SSL_read_early_data(); otherwise we'll just skip past the early data
3871 * and ignore it. So, since the application must add calls to
3872 * SSL_read_early_data(), we also require them to add
3873 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3874 * eliminating the bandwidth-wasting early data in the case described
3877 ret
->max_early_data
= 0;
3880 * Default recv_max_early_data is a fully loaded single record. Could be
3881 * split across multiple records in practice. We set this differently to
3882 * max_early_data so that, in the default case, we do not advertise any
3883 * support for early_data, but if a client were to send us some (e.g.
3884 * because of an old, stale ticket) then we will tolerate it and skip over
3887 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3889 /* By default we send two session tickets automatically in TLSv1.3 */
3890 ret
->num_tickets
= 2;
3892 ssl_ctx_system_config(ret
);
3900 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
3902 return SSL_CTX_new_ex(NULL
, NULL
, meth
);
3905 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3909 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3912 REF_PRINT_COUNT("SSL_CTX", ctx
);
3913 REF_ASSERT_ISNT(i
< 2);
3914 return ((i
> 1) ? 1 : 0);
3917 void SSL_CTX_free(SSL_CTX
*a
)
3925 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3926 REF_PRINT_COUNT("SSL_CTX", a
);
3929 REF_ASSERT_ISNT(i
< 0);
3931 X509_VERIFY_PARAM_free(a
->param
);
3932 dane_ctx_final(&a
->dane
);
3935 * Free internal session cache. However: the remove_cb() may reference
3936 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3937 * after the sessions were flushed.
3938 * As the ex_data handling routines might also touch the session cache,
3939 * the most secure solution seems to be: empty (flush) the cache, then
3940 * free ex_data, then finally free the cache.
3941 * (See ticket [openssl.org #212].)
3943 if (a
->sessions
!= NULL
)
3944 SSL_CTX_flush_sessions(a
, 0);
3946 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3947 lh_SSL_SESSION_free(a
->sessions
);
3948 X509_STORE_free(a
->cert_store
);
3949 #ifndef OPENSSL_NO_CT
3950 CTLOG_STORE_free(a
->ctlog_store
);
3952 sk_SSL_CIPHER_free(a
->cipher_list
);
3953 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3954 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3955 ssl_cert_free(a
->cert
);
3956 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3957 sk_X509_NAME_pop_free(a
->client_ca_names
, X509_NAME_free
);
3958 OSSL_STACK_OF_X509_free(a
->extra_certs
);
3959 a
->comp_methods
= NULL
;
3960 #ifndef OPENSSL_NO_SRTP
3961 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3963 #ifndef OPENSSL_NO_SRP
3964 ssl_ctx_srp_ctx_free_intern(a
);
3966 #ifndef OPENSSL_NO_ENGINE
3967 tls_engine_finish(a
->client_cert_engine
);
3970 OPENSSL_free(a
->ext
.ecpointformats
);
3971 OPENSSL_free(a
->ext
.supportedgroups
);
3972 OPENSSL_free(a
->ext
.supported_groups_default
);
3973 OPENSSL_free(a
->ext
.alpn
);
3974 OPENSSL_secure_free(a
->ext
.secure
);
3976 ssl_evp_md_free(a
->md5
);
3977 ssl_evp_md_free(a
->sha1
);
3979 for (j
= 0; j
< SSL_ENC_NUM_IDX
; j
++)
3980 ssl_evp_cipher_free(a
->ssl_cipher_methods
[j
]);
3981 for (j
= 0; j
< SSL_MD_NUM_IDX
; j
++)
3982 ssl_evp_md_free(a
->ssl_digest_methods
[j
]);
3983 for (j
= 0; j
< a
->group_list_len
; j
++) {
3984 OPENSSL_free(a
->group_list
[j
].tlsname
);
3985 OPENSSL_free(a
->group_list
[j
].realname
);
3986 OPENSSL_free(a
->group_list
[j
].algorithm
);
3988 OPENSSL_free(a
->group_list
);
3990 OPENSSL_free(a
->sigalg_lookup_cache
);
3992 CRYPTO_THREAD_lock_free(a
->lock
);
3993 #ifdef TSAN_REQUIRES_LOCKING
3994 CRYPTO_THREAD_lock_free(a
->tsan_lock
);
3997 OPENSSL_free(a
->propq
);
4002 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
4004 ctx
->default_passwd_callback
= cb
;
4007 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
4009 ctx
->default_passwd_callback_userdata
= u
;
4012 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
4014 return ctx
->default_passwd_callback
;
4017 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
4019 return ctx
->default_passwd_callback_userdata
;
4022 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
4024 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4029 sc
->default_passwd_callback
= cb
;
4032 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
4034 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4039 sc
->default_passwd_callback_userdata
= u
;
4042 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
4044 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4049 return sc
->default_passwd_callback
;
4052 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
4054 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4059 return sc
->default_passwd_callback_userdata
;
4062 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
4063 int (*cb
) (X509_STORE_CTX
*, void *),
4066 ctx
->app_verify_callback
= cb
;
4067 ctx
->app_verify_arg
= arg
;
4070 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
4071 int (*cb
) (int, X509_STORE_CTX
*))
4073 ctx
->verify_mode
= mode
;
4074 ctx
->default_verify_callback
= cb
;
4077 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
4079 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
4082 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4084 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
4087 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4089 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4094 ssl_cert_set_cert_cb(sc
->cert
, cb
, arg
);
4097 void ssl_set_masks(SSL_CONNECTION
*s
)
4100 uint32_t *pvalid
= s
->s3
.tmp
.valid_flags
;
4101 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
4102 unsigned long mask_k
, mask_a
;
4103 int have_ecc_cert
, ecdsa_ok
;
4108 dh_tmp
= (c
->dh_tmp
!= NULL
4109 || c
->dh_tmp_cb
!= NULL
4112 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4113 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4114 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
4115 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
4119 OSSL_TRACE4(TLS_CIPHER
, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4120 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
4122 #ifndef OPENSSL_NO_GOST
4123 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
4124 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4125 mask_a
|= SSL_aGOST12
;
4127 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
4128 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4129 mask_a
|= SSL_aGOST12
;
4131 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
4132 mask_k
|= SSL_kGOST
;
4133 mask_a
|= SSL_aGOST01
;
4144 * If we only have an RSA-PSS certificate allow RSA authentication
4145 * if TLS 1.2 and peer supports it.
4148 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
4149 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
4150 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
))
4157 mask_a
|= SSL_aNULL
;
4160 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4161 * depending on the key usage extension.
4163 if (have_ecc_cert
) {
4165 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
4166 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
4167 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
4170 mask_a
|= SSL_aECDSA
;
4172 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4173 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
4174 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
4175 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4176 mask_a
|= SSL_aECDSA
;
4178 /* Allow Ed448 for TLS 1.2 if peer supports it */
4179 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
4180 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
4181 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4182 mask_a
|= SSL_aECDSA
;
4184 mask_k
|= SSL_kECDHE
;
4186 #ifndef OPENSSL_NO_PSK
4189 if (mask_k
& SSL_kRSA
)
4190 mask_k
|= SSL_kRSAPSK
;
4191 if (mask_k
& SSL_kDHE
)
4192 mask_k
|= SSL_kDHEPSK
;
4193 if (mask_k
& SSL_kECDHE
)
4194 mask_k
|= SSL_kECDHEPSK
;
4197 s
->s3
.tmp
.mask_k
= mask_k
;
4198 s
->s3
.tmp
.mask_a
= mask_a
;
4201 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CONNECTION
*s
)
4203 if (s
->s3
.tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
4204 /* key usage, if present, must allow signing */
4205 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
4206 ERR_raise(ERR_LIB_SSL
, SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
4210 return 1; /* all checks are ok */
4213 int ssl_get_server_cert_serverinfo(SSL_CONNECTION
*s
,
4214 const unsigned char **serverinfo
,
4215 size_t *serverinfo_length
)
4217 CERT_PKEY
*cpk
= s
->s3
.tmp
.cert
;
4218 *serverinfo_length
= 0;
4220 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
4223 *serverinfo
= cpk
->serverinfo
;
4224 *serverinfo_length
= cpk
->serverinfo_length
;
4228 void ssl_update_cache(SSL_CONNECTION
*s
, int mode
)
4233 * If the session_id_length is 0, we are not supposed to cache it, and it
4234 * would be rather hard to do anyway :-)
4236 if (s
->session
->session_id_length
== 0)
4240 * If sid_ctx_length is 0 there is no specific application context
4241 * associated with this session, so when we try to resume it and
4242 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4243 * indication that this is actually a session for the proper application
4244 * context, and the *handshake* will fail, not just the resumption attempt.
4245 * Do not cache (on the server) these sessions that are not resumable
4246 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4248 if (s
->server
&& s
->session
->sid_ctx_length
== 0
4249 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
4252 i
= s
->session_ctx
->session_cache_mode
;
4254 && (!s
->hit
|| SSL_CONNECTION_IS_TLS13(s
))) {
4256 * Add the session to the internal cache. In server side TLSv1.3 we
4257 * normally don't do this because by default it's a full stateless ticket
4258 * with only a dummy session id so there is no reason to cache it,
4260 * - we are doing early_data, in which case we cache so that we can
4262 * - the application has set a remove_session_cb so needs to know about
4263 * session timeout events
4264 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4266 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
4267 && (!SSL_CONNECTION_IS_TLS13(s
)
4269 || (s
->max_early_data
> 0
4270 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
4271 || s
->session_ctx
->remove_session_cb
!= NULL
4272 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
4273 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
4276 * Add the session to the external cache. We do this even in server side
4277 * TLSv1.3 without early data because some applications just want to
4278 * know about the creation of a session and aren't doing a full cache.
4280 if (s
->session_ctx
->new_session_cb
!= NULL
) {
4281 SSL_SESSION_up_ref(s
->session
);
4282 if (!s
->session_ctx
->new_session_cb(SSL_CONNECTION_GET_SSL(s
),
4284 SSL_SESSION_free(s
->session
);
4288 /* auto flush every 255 connections */
4289 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
4290 TSAN_QUALIFIER
int *stat
;
4292 if (mode
& SSL_SESS_CACHE_CLIENT
)
4293 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
4295 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
4296 if ((ssl_tsan_load(s
->session_ctx
, stat
) & 0xff) == 0xff)
4297 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
4301 const SSL_METHOD
*SSL_CTX_get_ssl_method(const SSL_CTX
*ctx
)
4306 const SSL_METHOD
*SSL_get_ssl_method(const SSL
*s
)
4311 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
4314 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4316 /* TODO(QUIC): Do we want this for QUIC? */
4318 || (s
->type
!= SSL_TYPE_SSL_CONNECTION
&& s
->method
!= meth
))
4321 if (s
->method
!= meth
) {
4322 const SSL_METHOD
*sm
= s
->method
;
4323 int (*hf
) (SSL
*) = sc
->handshake_func
;
4325 if (sm
->version
== meth
->version
)
4330 ret
= s
->method
->ssl_init(s
);
4333 if (hf
== sm
->ssl_connect
)
4334 sc
->handshake_func
= meth
->ssl_connect
;
4335 else if (hf
== sm
->ssl_accept
)
4336 sc
->handshake_func
= meth
->ssl_accept
;
4341 int SSL_get_error(const SSL
*s
, int i
)
4346 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4349 return SSL_ERROR_NONE
;
4351 /* TODO(QUIC): This will need more handling for QUIC_CONNECTIONs */
4353 return SSL_ERROR_SSL
;
4356 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4357 * where we do encode the error
4359 if ((l
= ERR_peek_error()) != 0) {
4360 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
4361 return SSL_ERROR_SYSCALL
;
4363 return SSL_ERROR_SSL
;
4366 if (SSL_want_read(s
)) {
4367 bio
= SSL_get_rbio(s
);
4368 if (BIO_should_read(bio
))
4369 return SSL_ERROR_WANT_READ
;
4370 else if (BIO_should_write(bio
))
4372 * This one doesn't make too much sense ... We never try to write
4373 * to the rbio, and an application program where rbio and wbio
4374 * are separate couldn't even know what it should wait for.
4375 * However if we ever set s->rwstate incorrectly (so that we have
4376 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
4377 * wbio *are* the same, this test works around that bug; so it
4378 * might be safer to keep it.
4380 return SSL_ERROR_WANT_WRITE
;
4381 else if (BIO_should_io_special(bio
)) {
4382 reason
= BIO_get_retry_reason(bio
);
4383 if (reason
== BIO_RR_CONNECT
)
4384 return SSL_ERROR_WANT_CONNECT
;
4385 else if (reason
== BIO_RR_ACCEPT
)
4386 return SSL_ERROR_WANT_ACCEPT
;
4388 return SSL_ERROR_SYSCALL
; /* unknown */
4392 if (SSL_want_write(s
)) {
4393 /* Access wbio directly - in order to use the buffered bio if present */
4395 if (BIO_should_write(bio
))
4396 return SSL_ERROR_WANT_WRITE
;
4397 else if (BIO_should_read(bio
))
4399 * See above (SSL_want_read(s) with BIO_should_write(bio))
4401 return SSL_ERROR_WANT_READ
;
4402 else if (BIO_should_io_special(bio
)) {
4403 reason
= BIO_get_retry_reason(bio
);
4404 if (reason
== BIO_RR_CONNECT
)
4405 return SSL_ERROR_WANT_CONNECT
;
4406 else if (reason
== BIO_RR_ACCEPT
)
4407 return SSL_ERROR_WANT_ACCEPT
;
4409 return SSL_ERROR_SYSCALL
;
4412 if (SSL_want_x509_lookup(s
))
4413 return SSL_ERROR_WANT_X509_LOOKUP
;
4414 if (SSL_want_retry_verify(s
))
4415 return SSL_ERROR_WANT_RETRY_VERIFY
;
4416 if (SSL_want_async(s
))
4417 return SSL_ERROR_WANT_ASYNC
;
4418 if (SSL_want_async_job(s
))
4419 return SSL_ERROR_WANT_ASYNC_JOB
;
4420 if (SSL_want_client_hello_cb(s
))
4421 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
4423 if ((sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
4424 (sc
->s3
.warn_alert
== SSL_AD_CLOSE_NOTIFY
))
4425 return SSL_ERROR_ZERO_RETURN
;
4427 return SSL_ERROR_SYSCALL
;
4430 static int ssl_do_handshake_intern(void *vargs
)
4432 struct ssl_async_args
*args
= (struct ssl_async_args
*)vargs
;
4434 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4439 return sc
->handshake_func(s
);
4442 int SSL_do_handshake(SSL
*s
)
4445 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4447 /* TODO(QUIC): Special handling for QUIC will be needed */
4451 if (sc
->handshake_func
== NULL
) {
4452 ERR_raise(ERR_LIB_SSL
, SSL_R_CONNECTION_TYPE_NOT_SET
);
4456 ossl_statem_check_finish_init(sc
, -1);
4458 s
->method
->ssl_renegotiate_check(s
, 0);
4460 if (SSL_in_init(s
) || SSL_in_before(s
)) {
4461 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
4462 struct ssl_async_args args
;
4464 memset(&args
, 0, sizeof(args
));
4467 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
4469 ret
= sc
->handshake_func(s
);
4475 void SSL_set_accept_state(SSL
*s
)
4477 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4479 /* TODO(QUIC): Special handling for QUIC will be needed */
4485 ossl_statem_clear(sc
);
4486 sc
->handshake_func
= s
->method
->ssl_accept
;
4487 /* Ignore return value. Its a void public API function */
4488 clear_record_layer(sc
);
4491 void SSL_set_connect_state(SSL
*s
)
4493 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4495 /* TODO(QUIC): Special handling for QUIC will be needed */
4501 ossl_statem_clear(sc
);
4502 sc
->handshake_func
= s
->method
->ssl_connect
;
4503 /* Ignore return value. Its a void public API function */
4504 clear_record_layer(sc
);
4507 int ssl_undefined_function(SSL
*s
)
4509 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4513 int ssl_undefined_void_function(void)
4515 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4519 int ssl_undefined_const_function(const SSL
*s
)
4524 const SSL_METHOD
*ssl_bad_method(int ver
)
4526 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4530 const char *ssl_protocol_to_string(int version
)
4534 case TLS1_3_VERSION
:
4537 case TLS1_2_VERSION
:
4540 case TLS1_1_VERSION
:
4555 case DTLS1_2_VERSION
:
4563 const char *SSL_get_version(const SSL
*s
)
4565 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4567 /* TODO(QUIC): Should QUIC return QUIC or TLSv1.3? */
4571 return ssl_protocol_to_string(sc
->version
);
4574 static int dup_ca_names(STACK_OF(X509_NAME
) **dst
, STACK_OF(X509_NAME
) *src
)
4576 STACK_OF(X509_NAME
) *sk
;
4585 if ((sk
= sk_X509_NAME_new_null()) == NULL
)
4587 for (i
= 0; i
< sk_X509_NAME_num(src
); i
++) {
4588 xn
= X509_NAME_dup(sk_X509_NAME_value(src
, i
));
4590 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4593 if (sk_X509_NAME_insert(sk
, xn
, i
) == 0) {
4595 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4604 SSL
*SSL_dup(SSL
*s
)
4608 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4609 SSL_CONNECTION
*retsc
;
4610 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4615 /* If we're not quiescent, just up_ref! */
4616 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
4617 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
4622 * Otherwise, copy configuration state, and session if set.
4624 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
4626 if ((retsc
= SSL_CONNECTION_FROM_SSL_ONLY(ret
)) == NULL
)
4629 if (sc
->session
!= NULL
) {
4631 * Arranges to share the same session via up_ref. This "copies"
4632 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4634 if (!SSL_copy_session_id(ret
, s
))
4638 * No session has been established yet, so we have to expect that
4639 * s->cert or ret->cert will be changed later -- they should not both
4640 * point to the same object, and thus we can't use
4641 * SSL_copy_session_id.
4643 if (!SSL_set_ssl_method(ret
, s
->method
))
4646 if (sc
->cert
!= NULL
) {
4647 ssl_cert_free(retsc
->cert
);
4648 retsc
->cert
= ssl_cert_dup(sc
->cert
);
4649 if (retsc
->cert
== NULL
)
4653 if (!SSL_set_session_id_context(ret
, sc
->sid_ctx
,
4654 (int)sc
->sid_ctx_length
))
4658 if (!ssl_dane_dup(retsc
, sc
))
4660 retsc
->version
= sc
->version
;
4661 retsc
->options
= sc
->options
;
4662 retsc
->min_proto_version
= sc
->min_proto_version
;
4663 retsc
->max_proto_version
= sc
->max_proto_version
;
4664 retsc
->mode
= sc
->mode
;
4665 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
4666 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
4667 retsc
->msg_callback
= sc
->msg_callback
;
4668 retsc
->msg_callback_arg
= sc
->msg_callback_arg
;
4669 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
4670 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
4671 retsc
->generate_session_id
= sc
->generate_session_id
;
4673 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
4675 /* copy app data, a little dangerous perhaps */
4676 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
4679 retsc
->server
= sc
->server
;
4680 if (sc
->handshake_func
) {
4682 SSL_set_accept_state(ret
);
4684 SSL_set_connect_state(ret
);
4686 retsc
->shutdown
= sc
->shutdown
;
4687 retsc
->hit
= sc
->hit
;
4689 retsc
->default_passwd_callback
= sc
->default_passwd_callback
;
4690 retsc
->default_passwd_callback_userdata
= sc
->default_passwd_callback_userdata
;
4692 X509_VERIFY_PARAM_inherit(retsc
->param
, sc
->param
);
4694 /* dup the cipher_list and cipher_list_by_id stacks */
4695 if (sc
->cipher_list
!= NULL
) {
4696 if ((retsc
->cipher_list
= sk_SSL_CIPHER_dup(sc
->cipher_list
)) == NULL
)
4699 if (sc
->cipher_list_by_id
!= NULL
)
4700 if ((retsc
->cipher_list_by_id
= sk_SSL_CIPHER_dup(sc
->cipher_list_by_id
))
4704 /* Dup the client_CA list */
4705 if (!dup_ca_names(&retsc
->ca_names
, sc
->ca_names
)
4706 || !dup_ca_names(&retsc
->client_ca_names
, sc
->client_ca_names
))
4716 X509
*SSL_get_certificate(const SSL
*s
)
4718 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4723 if (sc
->cert
!= NULL
)
4724 return sc
->cert
->key
->x509
;
4729 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
4731 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4736 if (sc
->cert
!= NULL
)
4737 return sc
->cert
->key
->privatekey
;
4742 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
4744 if (ctx
->cert
!= NULL
)
4745 return ctx
->cert
->key
->x509
;
4750 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
4752 if (ctx
->cert
!= NULL
)
4753 return ctx
->cert
->key
->privatekey
;
4758 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
4760 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4765 if ((sc
->session
!= NULL
) && (sc
->session
->cipher
!= NULL
))
4766 return sc
->session
->cipher
;
4770 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
4772 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4777 return sc
->s3
.tmp
.new_cipher
;
4780 const COMP_METHOD
*SSL_get_current_compression(const SSL
*s
)
4782 #ifndef OPENSSL_NO_COMP
4783 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4788 return sc
->rlayer
.wrlmethod
->get_compression(sc
->rlayer
.wrl
);
4794 const COMP_METHOD
*SSL_get_current_expansion(const SSL
*s
)
4796 #ifndef OPENSSL_NO_COMP
4797 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4802 return sc
->rlayer
.rrlmethod
->get_compression(sc
->rlayer
.rrl
);
4808 int ssl_init_wbio_buffer(SSL_CONNECTION
*s
)
4812 if (s
->bbio
!= NULL
) {
4813 /* Already buffered. */
4817 bbio
= BIO_new(BIO_f_buffer());
4818 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
4820 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
4824 s
->wbio
= BIO_push(bbio
, s
->wbio
);
4826 s
->rlayer
.wrlmethod
->set1_bio(s
->rlayer
.wrl
, s
->wbio
);
4831 int ssl_free_wbio_buffer(SSL_CONNECTION
*s
)
4833 /* callers ensure s is never null */
4834 if (s
->bbio
== NULL
)
4837 s
->wbio
= BIO_pop(s
->wbio
);
4838 s
->rlayer
.wrlmethod
->set1_bio(s
->rlayer
.wrl
, s
->wbio
);
4846 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
4848 ctx
->quiet_shutdown
= mode
;
4851 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
4853 return ctx
->quiet_shutdown
;
4856 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
4858 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4860 /* TODO(QUIC): Do we want this for QUIC? */
4864 sc
->quiet_shutdown
= mode
;
4867 int SSL_get_quiet_shutdown(const SSL
*s
)
4869 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4871 /* TODO(QUIC): Do we want this for QUIC? */
4875 return sc
->quiet_shutdown
;
4878 void SSL_set_shutdown(SSL
*s
, int mode
)
4880 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4882 /* TODO(QUIC): Do we want this for QUIC? */
4886 sc
->shutdown
= mode
;
4889 int SSL_get_shutdown(const SSL
*s
)
4891 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4893 /* TODO(QUIC): Do we want this for QUIC? */
4897 return sc
->shutdown
;
4900 int SSL_version(const SSL
*s
)
4902 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4904 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4911 int SSL_client_version(const SSL
*s
)
4913 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4915 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4919 return sc
->client_version
;
4922 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
4927 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
4930 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
4932 /* TODO(QUIC): Do we need this for QUIC support? */
4936 if (ssl
->ctx
== ctx
)
4939 ctx
= sc
->session_ctx
;
4940 new_cert
= ssl_cert_dup(ctx
->cert
);
4941 if (new_cert
== NULL
) {
4945 if (!custom_exts_copy_flags(&new_cert
->custext
, &sc
->cert
->custext
)) {
4946 ssl_cert_free(new_cert
);
4950 ssl_cert_free(sc
->cert
);
4951 sc
->cert
= new_cert
;
4954 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4955 * so setter APIs must prevent invalid lengths from entering the system.
4957 if (!ossl_assert(sc
->sid_ctx_length
<= sizeof(sc
->sid_ctx
)))
4961 * If the session ID context matches that of the parent SSL_CTX,
4962 * inherit it from the new SSL_CTX as well. If however the context does
4963 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4964 * leave it unchanged.
4966 if ((ssl
->ctx
!= NULL
) &&
4967 (sc
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
4968 (memcmp(sc
->sid_ctx
, ssl
->ctx
->sid_ctx
, sc
->sid_ctx_length
) == 0)) {
4969 sc
->sid_ctx_length
= ctx
->sid_ctx_length
;
4970 memcpy(&sc
->sid_ctx
, &ctx
->sid_ctx
, sizeof(sc
->sid_ctx
));
4973 SSL_CTX_up_ref(ctx
);
4974 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
4980 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
4982 return X509_STORE_set_default_paths_ex(ctx
->cert_store
, ctx
->libctx
,
4986 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
4988 X509_LOOKUP
*lookup
;
4990 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4994 /* We ignore errors, in case the directory doesn't exist */
4997 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
5004 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
5006 X509_LOOKUP
*lookup
;
5008 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
5012 /* We ignore errors, in case the file doesn't exist */
5015 X509_LOOKUP_load_file_ex(lookup
, NULL
, X509_FILETYPE_DEFAULT
, ctx
->libctx
,
5023 int SSL_CTX_set_default_verify_store(SSL_CTX
*ctx
)
5025 X509_LOOKUP
*lookup
;
5027 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_store());
5031 /* We ignore errors, in case the directory doesn't exist */
5034 X509_LOOKUP_add_store_ex(lookup
, NULL
, ctx
->libctx
, ctx
->propq
);
5041 int SSL_CTX_load_verify_file(SSL_CTX
*ctx
, const char *CAfile
)
5043 return X509_STORE_load_file_ex(ctx
->cert_store
, CAfile
, ctx
->libctx
,
5047 int SSL_CTX_load_verify_dir(SSL_CTX
*ctx
, const char *CApath
)
5049 return X509_STORE_load_path(ctx
->cert_store
, CApath
);
5052 int SSL_CTX_load_verify_store(SSL_CTX
*ctx
, const char *CAstore
)
5054 return X509_STORE_load_store_ex(ctx
->cert_store
, CAstore
, ctx
->libctx
,
5058 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
5061 if (CAfile
== NULL
&& CApath
== NULL
)
5063 if (CAfile
!= NULL
&& !SSL_CTX_load_verify_file(ctx
, CAfile
))
5065 if (CApath
!= NULL
&& !SSL_CTX_load_verify_dir(ctx
, CApath
))
5070 void SSL_set_info_callback(SSL
*ssl
,
5071 void (*cb
) (const SSL
*ssl
, int type
, int val
))
5073 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5078 sc
->info_callback
= cb
;
5082 * One compiler (Diab DCC) doesn't like argument names in returned function
5085 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
5088 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5093 return sc
->info_callback
;
5096 void SSL_set_verify_result(SSL
*ssl
, long arg
)
5098 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5103 sc
->verify_result
= arg
;
5106 long SSL_get_verify_result(const SSL
*ssl
)
5108 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5113 return sc
->verify_result
;
5116 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5118 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5124 return sizeof(sc
->s3
.client_random
);
5125 if (outlen
> sizeof(sc
->s3
.client_random
))
5126 outlen
= sizeof(sc
->s3
.client_random
);
5127 memcpy(out
, sc
->s3
.client_random
, outlen
);
5131 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5133 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5139 return sizeof(sc
->s3
.server_random
);
5140 if (outlen
> sizeof(sc
->s3
.server_random
))
5141 outlen
= sizeof(sc
->s3
.server_random
);
5142 memcpy(out
, sc
->s3
.server_random
, outlen
);
5146 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
5147 unsigned char *out
, size_t outlen
)
5150 return session
->master_key_length
;
5151 if (outlen
> session
->master_key_length
)
5152 outlen
= session
->master_key_length
;
5153 memcpy(out
, session
->master_key
, outlen
);
5157 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
5160 if (len
> sizeof(sess
->master_key
))
5163 memcpy(sess
->master_key
, in
, len
);
5164 sess
->master_key_length
= len
;
5169 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
5171 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5174 void *SSL_get_ex_data(const SSL
*s
, int idx
)
5176 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5179 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
5181 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5184 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
5186 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5189 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
5191 return ctx
->cert_store
;
5194 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5196 X509_STORE_free(ctx
->cert_store
);
5197 ctx
->cert_store
= store
;
5200 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5203 X509_STORE_up_ref(store
);
5204 SSL_CTX_set_cert_store(ctx
, store
);
5207 int SSL_want(const SSL
*s
)
5209 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5217 #ifndef OPENSSL_NO_PSK
5218 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
5220 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5221 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5224 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
5225 if (identity_hint
!= NULL
) {
5226 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5227 if (ctx
->cert
->psk_identity_hint
== NULL
)
5230 ctx
->cert
->psk_identity_hint
= NULL
;
5234 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
5236 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5241 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5242 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5245 OPENSSL_free(sc
->cert
->psk_identity_hint
);
5246 if (identity_hint
!= NULL
) {
5247 sc
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5248 if (sc
->cert
->psk_identity_hint
== NULL
)
5251 sc
->cert
->psk_identity_hint
= NULL
;
5255 const char *SSL_get_psk_identity_hint(const SSL
*s
)
5257 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5259 if (sc
== NULL
|| sc
->session
== NULL
)
5262 return sc
->session
->psk_identity_hint
;
5265 const char *SSL_get_psk_identity(const SSL
*s
)
5267 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5269 if (sc
== NULL
|| sc
->session
== NULL
)
5272 return sc
->session
->psk_identity
;
5275 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
5277 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5282 sc
->psk_client_callback
= cb
;
5285 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
5287 ctx
->psk_client_callback
= cb
;
5290 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
5292 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5297 sc
->psk_server_callback
= cb
;
5300 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
5302 ctx
->psk_server_callback
= cb
;
5306 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
5308 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5313 sc
->psk_find_session_cb
= cb
;
5316 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
5317 SSL_psk_find_session_cb_func cb
)
5319 ctx
->psk_find_session_cb
= cb
;
5322 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
5324 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5329 sc
->psk_use_session_cb
= cb
;
5332 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
5333 SSL_psk_use_session_cb_func cb
)
5335 ctx
->psk_use_session_cb
= cb
;
5338 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
5339 void (*cb
) (int write_p
, int version
,
5340 int content_type
, const void *buf
,
5341 size_t len
, SSL
*ssl
, void *arg
))
5343 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5346 void SSL_set_msg_callback(SSL
*ssl
,
5347 void (*cb
) (int write_p
, int version
,
5348 int content_type
, const void *buf
,
5349 size_t len
, SSL
*ssl
, void *arg
))
5351 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5354 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
5355 int (*cb
) (SSL
*ssl
,
5359 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5360 (void (*)(void))cb
);
5363 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
5364 int (*cb
) (SSL
*ssl
,
5365 int is_forward_secure
))
5367 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5368 (void (*)(void))cb
);
5371 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
5372 size_t (*cb
) (SSL
*ssl
, int type
,
5373 size_t len
, void *arg
))
5375 ctx
->record_padding_cb
= cb
;
5378 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
5380 ctx
->record_padding_arg
= arg
;
5383 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX
*ctx
)
5385 return ctx
->record_padding_arg
;
5388 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
5390 /* block size of 0 or 1 is basically no padding */
5391 if (block_size
== 1)
5392 ctx
->block_padding
= 0;
5393 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5394 ctx
->block_padding
= block_size
;
5400 int SSL_set_record_padding_callback(SSL
*ssl
,
5401 size_t (*cb
) (SSL
*ssl
, int type
,
5402 size_t len
, void *arg
))
5405 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5410 b
= SSL_get_wbio(ssl
);
5411 if (b
== NULL
|| !BIO_get_ktls_send(b
)) {
5412 sc
->rlayer
.record_padding_cb
= cb
;
5418 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
5420 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5425 sc
->rlayer
.record_padding_arg
= arg
;
5428 void *SSL_get_record_padding_callback_arg(const SSL
*ssl
)
5430 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5435 return sc
->rlayer
.record_padding_arg
;
5438 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
5440 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5445 /* block size of 0 or 1 is basically no padding */
5446 if (block_size
== 1)
5447 sc
->rlayer
.block_padding
= 0;
5448 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5449 sc
->rlayer
.block_padding
= block_size
;
5455 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
5457 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5462 sc
->num_tickets
= num_tickets
;
5467 size_t SSL_get_num_tickets(const SSL
*s
)
5469 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5474 return sc
->num_tickets
;
5477 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
5479 ctx
->num_tickets
= num_tickets
;
5484 size_t SSL_CTX_get_num_tickets(const SSL_CTX
*ctx
)
5486 return ctx
->num_tickets
;
5489 /* Retrieve handshake hashes */
5490 int ssl_handshake_hash(SSL_CONNECTION
*s
,
5491 unsigned char *out
, size_t outlen
,
5494 EVP_MD_CTX
*ctx
= NULL
;
5495 EVP_MD_CTX
*hdgst
= s
->s3
.handshake_dgst
;
5496 int hashleni
= EVP_MD_CTX_get_size(hdgst
);
5499 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
5500 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5504 ctx
= EVP_MD_CTX_new();
5506 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5510 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
5511 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
5512 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5516 *hashlen
= hashleni
;
5520 EVP_MD_CTX_free(ctx
);
5524 int SSL_session_reused(const SSL
*s
)
5526 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5534 int SSL_is_server(const SSL
*s
)
5536 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5544 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5545 void SSL_set_debug(SSL
*s
, int debug
)
5547 /* Old function was do-nothing anyway... */
5553 void SSL_set_security_level(SSL
*s
, int level
)
5555 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5560 sc
->cert
->sec_level
= level
;
5563 int SSL_get_security_level(const SSL
*s
)
5565 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5570 return sc
->cert
->sec_level
;
5573 void SSL_set_security_callback(SSL
*s
,
5574 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5575 int op
, int bits
, int nid
,
5576 void *other
, void *ex
))
5578 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5583 sc
->cert
->sec_cb
= cb
;
5586 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
5587 const SSL_CTX
*ctx
, int op
,
5588 int bits
, int nid
, void *other
,
5590 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5595 return sc
->cert
->sec_cb
;
5598 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
5600 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5605 sc
->cert
->sec_ex
= ex
;
5608 void *SSL_get0_security_ex_data(const SSL
*s
)
5610 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5615 return sc
->cert
->sec_ex
;
5618 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
5620 ctx
->cert
->sec_level
= level
;
5623 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
5625 return ctx
->cert
->sec_level
;
5628 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
5629 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5630 int op
, int bits
, int nid
,
5631 void *other
, void *ex
))
5633 ctx
->cert
->sec_cb
= cb
;
5636 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
5642 return ctx
->cert
->sec_cb
;
5645 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
5647 ctx
->cert
->sec_ex
= ex
;
5650 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
5652 return ctx
->cert
->sec_ex
;
5655 uint64_t SSL_CTX_get_options(const SSL_CTX
*ctx
)
5657 return ctx
->options
;
5660 uint64_t SSL_get_options(const SSL
*s
)
5662 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5670 uint64_t SSL_CTX_set_options(SSL_CTX
*ctx
, uint64_t op
)
5672 return ctx
->options
|= op
;
5675 uint64_t SSL_set_options(SSL
*s
, uint64_t op
)
5677 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5678 OSSL_PARAM options
[2], *opts
= options
;
5685 *opts
++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS
,
5687 *opts
= OSSL_PARAM_construct_end();
5689 /* Ignore return value */
5690 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
5695 uint64_t SSL_CTX_clear_options(SSL_CTX
*ctx
, uint64_t op
)
5697 return ctx
->options
&= ~op
;
5700 uint64_t SSL_clear_options(SSL
*s
, uint64_t op
)
5702 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5707 return sc
->options
&= ~op
;
5710 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
5712 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5717 return sc
->verified_chain
;
5720 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
5722 #ifndef OPENSSL_NO_CT
5725 * Moves SCTs from the |src| stack to the |dst| stack.
5726 * The source of each SCT will be set to |origin|.
5727 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5729 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5731 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
5732 sct_source_t origin
)
5738 *dst
= sk_SCT_new_null();
5740 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
5745 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
5746 if (SCT_set_source(sct
, origin
) != 1)
5749 if (sk_SCT_push(*dst
, sct
) <= 0)
5757 sk_SCT_push(src
, sct
); /* Put the SCT back */
5762 * Look for data collected during ServerHello and parse if found.
5763 * Returns the number of SCTs extracted.
5765 static int ct_extract_tls_extension_scts(SSL_CONNECTION
*s
)
5767 int scts_extracted
= 0;
5769 if (s
->ext
.scts
!= NULL
) {
5770 const unsigned char *p
= s
->ext
.scts
;
5771 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
5773 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
5775 SCT_LIST_free(scts
);
5778 return scts_extracted
;
5782 * Checks for an OCSP response and then attempts to extract any SCTs found if it
5783 * contains an SCT X509 extension. They will be stored in |s->scts|.
5785 * - The number of SCTs extracted, assuming an OCSP response exists.
5786 * - 0 if no OCSP response exists or it contains no SCTs.
5787 * - A negative integer if an error occurs.
5789 static int ct_extract_ocsp_response_scts(SSL_CONNECTION
*s
)
5791 # ifndef OPENSSL_NO_OCSP
5792 int scts_extracted
= 0;
5793 const unsigned char *p
;
5794 OCSP_BASICRESP
*br
= NULL
;
5795 OCSP_RESPONSE
*rsp
= NULL
;
5796 STACK_OF(SCT
) *scts
= NULL
;
5799 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
5802 p
= s
->ext
.ocsp
.resp
;
5803 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
5807 br
= OCSP_response_get1_basic(rsp
);
5811 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
5812 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
5818 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
5820 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
5821 if (scts_extracted
< 0)
5825 SCT_LIST_free(scts
);
5826 OCSP_BASICRESP_free(br
);
5827 OCSP_RESPONSE_free(rsp
);
5828 return scts_extracted
;
5830 /* Behave as if no OCSP response exists */
5836 * Attempts to extract SCTs from the peer certificate.
5837 * Return the number of SCTs extracted, or a negative integer if an error
5840 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION
*s
)
5842 int scts_extracted
= 0;
5843 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5846 STACK_OF(SCT
) *scts
=
5847 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
5850 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
5852 SCT_LIST_free(scts
);
5855 return scts_extracted
;
5859 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
5860 * response (if it exists) and X509v3 extensions in the certificate.
5861 * Returns NULL if an error occurs.
5863 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
5865 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5870 if (!sc
->scts_parsed
) {
5871 if (ct_extract_tls_extension_scts(sc
) < 0 ||
5872 ct_extract_ocsp_response_scts(sc
) < 0 ||
5873 ct_extract_x509v3_extension_scts(sc
) < 0)
5876 sc
->scts_parsed
= 1;
5883 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
5884 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5889 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
5890 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5892 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
5895 for (i
= 0; i
< count
; ++i
) {
5896 SCT
*sct
= sk_SCT_value(scts
, i
);
5897 int status
= SCT_get_validation_status(sct
);
5899 if (status
== SCT_VALIDATION_STATUS_VALID
)
5902 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_VALID_SCTS
);
5906 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
5909 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5915 * Since code exists that uses the custom extension handler for CT, look
5916 * for this and throw an error if they have already registered to use CT.
5918 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
5919 TLSEXT_TYPE_signed_certificate_timestamp
))
5921 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5925 if (callback
!= NULL
) {
5927 * If we are validating CT, then we MUST accept SCTs served via OCSP
5929 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
5933 sc
->ct_validation_callback
= callback
;
5934 sc
->ct_validation_callback_arg
= arg
;
5939 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
5940 ssl_ct_validation_cb callback
, void *arg
)
5943 * Since code exists that uses the custom extension handler for CT, look for
5944 * this and throw an error if they have already registered to use CT.
5946 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
5947 TLSEXT_TYPE_signed_certificate_timestamp
))
5949 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5953 ctx
->ct_validation_callback
= callback
;
5954 ctx
->ct_validation_callback_arg
= arg
;
5958 int SSL_ct_is_enabled(const SSL
*s
)
5960 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5965 return sc
->ct_validation_callback
!= NULL
;
5968 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
5970 return ctx
->ct_validation_callback
!= NULL
;
5973 int ssl_validate_ct(SSL_CONNECTION
*s
)
5976 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5978 SSL_DANE
*dane
= &s
->dane
;
5979 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
5980 const STACK_OF(SCT
) *scts
;
5983 * If no callback is set, the peer is anonymous, or its chain is invalid,
5984 * skip SCT validation - just return success. Applications that continue
5985 * handshakes without certificates, with unverified chains, or pinned leaf
5986 * certificates are outside the scope of the WebPKI and CT.
5988 * The above exclusions notwithstanding the vast majority of peers will
5989 * have rather ordinary certificate chains validated by typical
5990 * applications that perform certificate verification and therefore will
5991 * process SCTs when enabled.
5993 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
5994 s
->verify_result
!= X509_V_OK
||
5995 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
5999 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
6000 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6002 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
6003 switch (dane
->mtlsa
->usage
) {
6004 case DANETLS_USAGE_DANE_TA
:
6005 case DANETLS_USAGE_DANE_EE
:
6010 ctx
= CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s
)->libctx
,
6011 SSL_CONNECTION_GET_CTX(s
)->propq
);
6013 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CT_LIB
);
6017 issuer
= sk_X509_value(s
->verified_chain
, 1);
6018 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
6019 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
6020 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
,
6021 SSL_CONNECTION_GET_CTX(s
)->ctlog_store
);
6022 CT_POLICY_EVAL_CTX_set_time(
6023 ctx
, (uint64_t)SSL_SESSION_get_time(s
->session
) * 1000);
6025 scts
= SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s
));
6028 * This function returns success (> 0) only when all the SCTs are valid, 0
6029 * when some are invalid, and < 0 on various internal errors (out of
6030 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6031 * reason to abort the handshake, that decision is up to the callback.
6032 * Therefore, we error out only in the unexpected case that the return
6033 * value is negative.
6035 * XXX: One might well argue that the return value of this function is an
6036 * unfortunate design choice. Its job is only to determine the validation
6037 * status of each of the provided SCTs. So long as it correctly separates
6038 * the wheat from the chaff it should return success. Failure in this case
6039 * ought to correspond to an inability to carry out its duties.
6041 if (SCT_LIST_validate(scts
, ctx
) < 0) {
6042 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_SCT_VERIFICATION_FAILED
);
6046 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
6048 ret
= 0; /* This function returns 0 on failure */
6050 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_CALLBACK_FAILED
);
6053 CT_POLICY_EVAL_CTX_free(ctx
);
6055 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6056 * failure return code here. Also the application may wish the complete
6057 * the handshake, and then disconnect cleanly at a higher layer, after
6058 * checking the verification status of the completed connection.
6060 * We therefore force a certificate verification failure which will be
6061 * visible via SSL_get_verify_result() and cached as part of any resumed
6064 * Note: the permissive callback is for information gathering only, always
6065 * returns success, and does not affect verification status. Only the
6066 * strict callback or a custom application-specified callback can trigger
6067 * connection failure or record a verification error.
6070 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
6074 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
6076 switch (validation_mode
) {
6078 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6080 case SSL_CT_VALIDATION_PERMISSIVE
:
6081 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
6082 case SSL_CT_VALIDATION_STRICT
:
6083 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
6087 int SSL_enable_ct(SSL
*s
, int validation_mode
)
6089 switch (validation_mode
) {
6091 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6093 case SSL_CT_VALIDATION_PERMISSIVE
:
6094 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
6095 case SSL_CT_VALIDATION_STRICT
:
6096 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
6100 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
6102 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
6105 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
6107 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
6110 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
6112 CTLOG_STORE_free(ctx
->ctlog_store
);
6113 ctx
->ctlog_store
= logs
;
6116 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
6118 return ctx
->ctlog_store
;
6121 #endif /* OPENSSL_NO_CT */
6123 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
6126 c
->client_hello_cb
= cb
;
6127 c
->client_hello_cb_arg
= arg
;
6130 int SSL_client_hello_isv2(SSL
*s
)
6132 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6137 if (sc
->clienthello
== NULL
)
6139 return sc
->clienthello
->isv2
;
6142 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
6144 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6149 if (sc
->clienthello
== NULL
)
6151 return sc
->clienthello
->legacy_version
;
6154 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
6156 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6161 if (sc
->clienthello
== NULL
)
6164 *out
= sc
->clienthello
->random
;
6165 return SSL3_RANDOM_SIZE
;
6168 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
6170 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6175 if (sc
->clienthello
== NULL
)
6178 *out
= sc
->clienthello
->session_id
;
6179 return sc
->clienthello
->session_id_len
;
6182 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
6184 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6189 if (sc
->clienthello
== NULL
)
6192 *out
= PACKET_data(&sc
->clienthello
->ciphersuites
);
6193 return PACKET_remaining(&sc
->clienthello
->ciphersuites
);
6196 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
6198 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6203 if (sc
->clienthello
== NULL
)
6206 *out
= sc
->clienthello
->compressions
;
6207 return sc
->clienthello
->compressions_len
;
6210 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
6215 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6220 if (sc
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
6222 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6223 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6232 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
)
6234 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6235 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6237 if (ext
->received_order
>= num
)
6239 present
[ext
->received_order
] = ext
->type
;
6246 OPENSSL_free(present
);
6250 int SSL_client_hello_get_extension_order(SSL
*s
, uint16_t *exts
, size_t *num_exts
)
6254 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6259 if (sc
->clienthello
== NULL
|| num_exts
== NULL
)
6261 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6262 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6274 if (*num_exts
< num
)
6276 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6277 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6279 if (ext
->received_order
>= num
)
6281 exts
[ext
->received_order
] = ext
->type
;
6288 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
6293 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6298 if (sc
->clienthello
== NULL
)
6300 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; ++i
) {
6301 r
= sc
->clienthello
->pre_proc_exts
+ i
;
6302 if (r
->present
&& r
->type
== type
) {
6304 *out
= PACKET_data(&r
->data
);
6306 *outlen
= PACKET_remaining(&r
->data
);
6313 int SSL_free_buffers(SSL
*ssl
)
6316 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6323 return rl
->rrlmethod
->free_buffers(rl
->rrl
)
6324 && rl
->wrlmethod
->free_buffers(rl
->wrl
);
6327 int SSL_alloc_buffers(SSL
*ssl
)
6330 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6337 return rl
->rrlmethod
->alloc_buffers(rl
->rrl
)
6338 && rl
->wrlmethod
->alloc_buffers(rl
->wrl
);
6341 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
6343 ctx
->keylog_callback
= cb
;
6346 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
6348 return ctx
->keylog_callback
;
6351 static int nss_keylog_int(const char *prefix
,
6353 const uint8_t *parameter_1
,
6354 size_t parameter_1_len
,
6355 const uint8_t *parameter_2
,
6356 size_t parameter_2_len
)
6359 char *cursor
= NULL
;
6363 SSL_CTX
*sctx
= SSL_CONNECTION_GET_CTX(sc
);
6365 if (sctx
->keylog_callback
== NULL
)
6369 * Our output buffer will contain the following strings, rendered with
6370 * space characters in between, terminated by a NULL character: first the
6371 * prefix, then the first parameter, then the second parameter. The
6372 * meaning of each parameter depends on the specific key material being
6373 * logged. Note that the first and second parameters are encoded in
6374 * hexadecimal, so we need a buffer that is twice their lengths.
6376 prefix_len
= strlen(prefix
);
6377 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
6378 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
)
6381 strcpy(cursor
, prefix
);
6382 cursor
+= prefix_len
;
6385 for (i
= 0; i
< parameter_1_len
; i
++) {
6386 sprintf(cursor
, "%02x", parameter_1
[i
]);
6391 for (i
= 0; i
< parameter_2_len
; i
++) {
6392 sprintf(cursor
, "%02x", parameter_2
[i
]);
6397 sctx
->keylog_callback(SSL_CONNECTION_GET_SSL(sc
), (const char *)out
);
6398 OPENSSL_clear_free(out
, out_len
);
6403 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION
*sc
,
6404 const uint8_t *encrypted_premaster
,
6405 size_t encrypted_premaster_len
,
6406 const uint8_t *premaster
,
6407 size_t premaster_len
)
6409 if (encrypted_premaster_len
< 8) {
6410 SSLfatal(sc
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6414 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6415 return nss_keylog_int("RSA",
6417 encrypted_premaster
,
6423 int ssl_log_secret(SSL_CONNECTION
*sc
,
6425 const uint8_t *secret
,
6428 return nss_keylog_int(label
,
6430 sc
->s3
.client_random
,
6436 #define SSLV2_CIPHER_LEN 3
6438 int ssl_cache_cipherlist(SSL_CONNECTION
*s
, PACKET
*cipher_suites
, int sslv2format
)
6442 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6444 if (PACKET_remaining(cipher_suites
) == 0) {
6445 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6449 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6450 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6454 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6455 s
->s3
.tmp
.ciphers_raw
= NULL
;
6456 s
->s3
.tmp
.ciphers_rawlen
= 0;
6459 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
6460 PACKET sslv2ciphers
= *cipher_suites
;
6461 unsigned int leadbyte
;
6465 * We store the raw ciphers list in SSLv3+ format so we need to do some
6466 * preprocessing to convert the list first. If there are any SSLv2 only
6467 * ciphersuites with a non-zero leading byte then we are going to
6468 * slightly over allocate because we won't store those. But that isn't a
6471 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
6472 s
->s3
.tmp
.ciphers_raw
= raw
;
6474 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CRYPTO_LIB
);
6477 for (s
->s3
.tmp
.ciphers_rawlen
= 0;
6478 PACKET_remaining(&sslv2ciphers
) > 0;
6479 raw
+= TLS_CIPHER_LEN
) {
6480 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
6482 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
6485 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
6486 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_PACKET
);
6487 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6488 s
->s3
.tmp
.ciphers_raw
= NULL
;
6489 s
->s3
.tmp
.ciphers_rawlen
= 0;
6493 s
->s3
.tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
6495 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
.tmp
.ciphers_raw
,
6496 &s
->s3
.tmp
.ciphers_rawlen
)) {
6497 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6503 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
6504 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
6505 STACK_OF(SSL_CIPHER
) **scsvs
)
6508 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6513 if (!PACKET_buf_init(&pkt
, bytes
, len
))
6515 return ossl_bytes_to_cipher_list(sc
, &pkt
, sk
, scsvs
, isv2format
, 0);
6518 int ossl_bytes_to_cipher_list(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
6519 STACK_OF(SSL_CIPHER
) **skp
,
6520 STACK_OF(SSL_CIPHER
) **scsvs_out
,
6521 int sslv2format
, int fatal
)
6523 const SSL_CIPHER
*c
;
6524 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
6525 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
6527 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6528 unsigned char cipher
[SSLV2_CIPHER_LEN
];
6530 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6532 if (PACKET_remaining(cipher_suites
) == 0) {
6534 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6536 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHERS_SPECIFIED
);
6540 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6542 SSLfatal(s
, SSL_AD_DECODE_ERROR
,
6543 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6545 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6549 sk
= sk_SSL_CIPHER_new_null();
6550 scsvs
= sk_SSL_CIPHER_new_null();
6551 if (sk
== NULL
|| scsvs
== NULL
) {
6553 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CRYPTO_LIB
);
6555 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
6559 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
6561 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6562 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6563 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6565 if (sslv2format
&& cipher
[0] != '\0')
6568 /* For SSLv2-compat, ignore leading 0-byte. */
6569 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
6571 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
6572 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
6574 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_CRYPTO_LIB
);
6576 ERR_raise(ERR_LIB_SSL
, ERR_R_CRYPTO_LIB
);
6581 if (PACKET_remaining(cipher_suites
) > 0) {
6583 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_LENGTH
);
6585 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
6592 sk_SSL_CIPHER_free(sk
);
6593 if (scsvs_out
!= NULL
)
6596 sk_SSL_CIPHER_free(scsvs
);
6599 sk_SSL_CIPHER_free(sk
);
6600 sk_SSL_CIPHER_free(scsvs
);
6604 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
6606 ctx
->max_early_data
= max_early_data
;
6611 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
6613 return ctx
->max_early_data
;
6616 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
6618 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6623 sc
->max_early_data
= max_early_data
;
6628 uint32_t SSL_get_max_early_data(const SSL
*s
)
6630 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6635 return sc
->max_early_data
;
6638 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
6640 ctx
->recv_max_early_data
= recv_max_early_data
;
6645 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
6647 return ctx
->recv_max_early_data
;
6650 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
6652 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6657 sc
->recv_max_early_data
= recv_max_early_data
;
6662 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
6664 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6669 return sc
->recv_max_early_data
;
6672 __owur
unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION
*sc
)
6674 /* Return any active Max Fragment Len extension */
6675 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
))
6676 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6678 /* return current SSL connection setting */
6679 return sc
->max_send_fragment
;
6682 __owur
unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION
*sc
)
6684 /* Return a value regarding an active Max Fragment Len extension */
6685 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
)
6686 && sc
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(sc
->session
))
6687 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6689 /* else limit |split_send_fragment| to current |max_send_fragment| */
6690 if (sc
->split_send_fragment
> sc
->max_send_fragment
)
6691 return sc
->max_send_fragment
;
6693 /* return current SSL connection setting */
6694 return sc
->split_send_fragment
;
6697 int SSL_stateless(SSL
*s
)
6700 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6702 /* TODO(QUIC): This will need further work. */
6706 /* Ensure there is no state left over from a previous invocation */
6712 sc
->s3
.flags
|= TLS1_FLAGS_STATELESS
;
6713 ret
= SSL_accept(s
);
6714 sc
->s3
.flags
&= ~TLS1_FLAGS_STATELESS
;
6716 if (ret
> 0 && sc
->ext
.cookieok
)
6719 if (sc
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(sc
))
6725 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
6727 ctx
->pha_enabled
= val
;
6730 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
6732 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6737 sc
->pha_enabled
= val
;
6740 int SSL_verify_client_post_handshake(SSL
*ssl
)
6742 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6747 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
6748 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
6752 ERR_raise(ERR_LIB_SSL
, SSL_R_NOT_SERVER
);
6756 if (!SSL_is_init_finished(ssl
)) {
6757 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
6761 switch (sc
->post_handshake_auth
) {
6763 ERR_raise(ERR_LIB_SSL
, SSL_R_EXTENSION_NOT_RECEIVED
);
6766 case SSL_PHA_EXT_SENT
:
6767 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
6769 case SSL_PHA_EXT_RECEIVED
:
6771 case SSL_PHA_REQUEST_PENDING
:
6772 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_PENDING
);
6774 case SSL_PHA_REQUESTED
:
6775 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_SENT
);
6779 sc
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
6781 /* checks verify_mode and algorithm_auth */
6782 if (!send_certificate_request(sc
)) {
6783 sc
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
6784 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CONFIG
);
6788 ossl_statem_set_in_init(sc
, 1);
6792 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
6793 SSL_CTX_generate_session_ticket_fn gen_cb
,
6794 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
6797 ctx
->generate_ticket_cb
= gen_cb
;
6798 ctx
->decrypt_ticket_cb
= dec_cb
;
6799 ctx
->ticket_cb_data
= arg
;
6803 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
6804 SSL_allow_early_data_cb_fn cb
,
6807 ctx
->allow_early_data_cb
= cb
;
6808 ctx
->allow_early_data_cb_data
= arg
;
6811 void SSL_set_allow_early_data_cb(SSL
*s
,
6812 SSL_allow_early_data_cb_fn cb
,
6815 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6820 sc
->allow_early_data_cb
= cb
;
6821 sc
->allow_early_data_cb_data
= arg
;
6824 const EVP_CIPHER
*ssl_evp_cipher_fetch(OSSL_LIB_CTX
*libctx
,
6826 const char *properties
)
6828 const EVP_CIPHER
*ciph
;
6830 ciph
= tls_get_cipher_from_engine(nid
);
6835 * If there is no engine cipher then we do an explicit fetch. This may fail
6836 * and that could be ok
6839 ciph
= EVP_CIPHER_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
6845 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
)
6847 /* Don't up-ref an implicit EVP_CIPHER */
6848 if (EVP_CIPHER_get0_provider(cipher
) == NULL
)
6852 * The cipher was explicitly fetched and therefore it is safe to cast
6855 return EVP_CIPHER_up_ref((EVP_CIPHER
*)cipher
);
6858 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
)
6863 if (EVP_CIPHER_get0_provider(cipher
) != NULL
) {
6865 * The cipher was explicitly fetched and therefore it is safe to cast
6868 EVP_CIPHER_free((EVP_CIPHER
*)cipher
);
6872 const EVP_MD
*ssl_evp_md_fetch(OSSL_LIB_CTX
*libctx
,
6874 const char *properties
)
6878 md
= tls_get_digest_from_engine(nid
);
6882 /* Otherwise we do an explicit fetch */
6884 md
= EVP_MD_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
6889 int ssl_evp_md_up_ref(const EVP_MD
*md
)
6891 /* Don't up-ref an implicit EVP_MD */
6892 if (EVP_MD_get0_provider(md
) == NULL
)
6896 * The digest was explicitly fetched and therefore it is safe to cast
6899 return EVP_MD_up_ref((EVP_MD
*)md
);
6902 void ssl_evp_md_free(const EVP_MD
*md
)
6907 if (EVP_MD_get0_provider(md
) != NULL
) {
6909 * The digest was explicitly fetched and therefore it is safe to cast
6912 EVP_MD_free((EVP_MD
*)md
);
6916 int SSL_set0_tmp_dh_pkey(SSL
*s
, EVP_PKEY
*dhpkey
)
6918 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6923 if (!ssl_security(sc
, SSL_SECOP_TMP_DH
,
6924 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
6925 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
6928 EVP_PKEY_free(sc
->cert
->dh_tmp
);
6929 sc
->cert
->dh_tmp
= dhpkey
;
6933 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX
*ctx
, EVP_PKEY
*dhpkey
)
6935 if (!ssl_ctx_security(ctx
, SSL_SECOP_TMP_DH
,
6936 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
6937 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
6940 EVP_PKEY_free(ctx
->cert
->dh_tmp
);
6941 ctx
->cert
->dh_tmp
= dhpkey
;