2 * Copyright 1995-2020 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
12 /* We need to use some engine deprecated APIs */
13 #define OPENSSL_SUPPRESS_DEPRECATED
16 #include "ssl_local.h"
18 #include <openssl/objects.h>
19 #include <openssl/x509v3.h>
20 #include <openssl/rand.h>
21 #include <openssl/ocsp.h>
22 #include <openssl/dh.h>
23 #include <openssl/engine.h>
24 #include <openssl/async.h>
25 #include <openssl/ct.h>
26 #include <openssl/trace.h>
27 #include "internal/cryptlib.h"
28 #include "internal/refcount.h"
29 #include "internal/ktls.h"
32 DEFINE_STACK_OF(X509_NAME
)
33 DEFINE_STACK_OF_CONST(SSL_CIPHER
)
34 DEFINE_STACK_OF(X509_EXTENSION
)
35 DEFINE_STACK_OF(OCSP_RESPID
)
36 DEFINE_STACK_OF(SRTP_PROTECTION_PROFILE
)
39 static int ssl_undefined_function_1(SSL
*ssl
, SSL3_RECORD
*r
, size_t s
, int t
,
40 SSL_MAC_BUF
*mac
, size_t macsize
)
42 return ssl_undefined_function(ssl
);
45 static int ssl_undefined_function_2(SSL
*ssl
, SSL3_RECORD
*r
, unsigned char *s
,
48 return ssl_undefined_function(ssl
);
51 static int ssl_undefined_function_3(SSL
*ssl
, unsigned char *r
,
52 unsigned char *s
, size_t t
, size_t *u
)
54 return ssl_undefined_function(ssl
);
57 static int ssl_undefined_function_4(SSL
*ssl
, int r
)
59 return ssl_undefined_function(ssl
);
62 static size_t ssl_undefined_function_5(SSL
*ssl
, const char *r
, size_t s
,
65 return ssl_undefined_function(ssl
);
68 static int ssl_undefined_function_6(int r
)
70 return ssl_undefined_function(NULL
);
73 static int ssl_undefined_function_7(SSL
*ssl
, unsigned char *r
, size_t s
,
74 const char *t
, size_t u
,
75 const unsigned char *v
, size_t w
, int x
)
77 return ssl_undefined_function(ssl
);
80 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
81 ssl_undefined_function_1
,
82 ssl_undefined_function_2
,
83 ssl_undefined_function
,
84 ssl_undefined_function_3
,
85 ssl_undefined_function_4
,
86 ssl_undefined_function_5
,
87 NULL
, /* client_finished_label */
88 0, /* client_finished_label_len */
89 NULL
, /* server_finished_label */
90 0, /* server_finished_label_len */
91 ssl_undefined_function_6
,
92 ssl_undefined_function_7
,
95 struct ssl_async_args
{
99 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
101 int (*func_read
) (SSL
*, void *, size_t, size_t *);
102 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
103 int (*func_other
) (SSL
*);
107 static const struct {
113 DANETLS_MATCHING_FULL
, 0, NID_undef
116 DANETLS_MATCHING_2256
, 1, NID_sha256
119 DANETLS_MATCHING_2512
, 2, NID_sha512
123 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
125 const EVP_MD
**mdevp
;
127 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
128 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
131 if (dctx
->mdevp
!= NULL
)
134 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
135 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
137 if (mdord
== NULL
|| mdevp
== NULL
) {
140 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
144 /* Install default entries */
145 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
148 if (dane_mds
[i
].nid
== NID_undef
||
149 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
151 mdevp
[dane_mds
[i
].mtype
] = md
;
152 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
162 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
164 OPENSSL_free(dctx
->mdevp
);
167 OPENSSL_free(dctx
->mdord
);
172 static void tlsa_free(danetls_record
*t
)
176 OPENSSL_free(t
->data
);
177 EVP_PKEY_free(t
->spki
);
181 static void dane_final(SSL_DANE
*dane
)
183 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
186 sk_X509_pop_free(dane
->certs
, X509_free
);
189 X509_free(dane
->mcert
);
197 * dane_copy - Copy dane configuration, sans verification state.
199 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
204 if (!DANETLS_ENABLED(&from
->dane
))
207 num
= sk_danetls_record_num(from
->dane
.trecs
);
208 dane_final(&to
->dane
);
209 to
->dane
.flags
= from
->dane
.flags
;
210 to
->dane
.dctx
= &to
->ctx
->dane
;
211 to
->dane
.trecs
= sk_danetls_record_new_reserve(NULL
, num
);
213 if (to
->dane
.trecs
== NULL
) {
214 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
218 for (i
= 0; i
< num
; ++i
) {
219 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
221 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
222 t
->data
, t
->dlen
) <= 0)
228 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
229 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
233 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
234 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
238 if (mtype
> dctx
->mdmax
) {
239 const EVP_MD
**mdevp
;
241 int n
= ((int)mtype
) + 1;
243 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
245 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
250 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
252 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
257 /* Zero-fill any gaps */
258 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
266 dctx
->mdevp
[mtype
] = md
;
267 /* Coerce ordinal of disabled matching types to 0 */
268 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
273 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
275 if (mtype
> dane
->dctx
->mdmax
)
277 return dane
->dctx
->mdevp
[mtype
];
280 static int dane_tlsa_add(SSL_DANE
*dane
,
283 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
286 const EVP_MD
*md
= NULL
;
287 int ilen
= (int)dlen
;
291 if (dane
->trecs
== NULL
) {
292 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
296 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
297 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
301 if (usage
> DANETLS_USAGE_LAST
) {
302 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
306 if (selector
> DANETLS_SELECTOR_LAST
) {
307 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
311 if (mtype
!= DANETLS_MATCHING_FULL
) {
312 md
= tlsa_md_get(dane
, mtype
);
314 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
319 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
320 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
324 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
328 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
329 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
334 t
->selector
= selector
;
336 t
->data
= OPENSSL_malloc(dlen
);
337 if (t
->data
== NULL
) {
339 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
342 memcpy(t
->data
, data
, dlen
);
345 /* Validate and cache full certificate or public key */
346 if (mtype
== DANETLS_MATCHING_FULL
) {
347 const unsigned char *p
= data
;
349 EVP_PKEY
*pkey
= NULL
;
352 case DANETLS_SELECTOR_CERT
:
353 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
354 dlen
!= (size_t)(p
- data
)) {
356 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
359 if (X509_get0_pubkey(cert
) == NULL
) {
361 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
365 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
371 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
372 * records that contain full certificates of trust-anchors that are
373 * not present in the wire chain. For usage PKIX-TA(0), we augment
374 * the chain with untrusted Full(0) certificates from DNS, in case
375 * they are missing from the chain.
377 if ((dane
->certs
== NULL
&&
378 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
379 !sk_X509_push(dane
->certs
, cert
)) {
380 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
387 case DANETLS_SELECTOR_SPKI
:
388 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
389 dlen
!= (size_t)(p
- data
)) {
391 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
396 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
397 * records that contain full bare keys of trust-anchors that are
398 * not present in the wire chain.
400 if (usage
== DANETLS_USAGE_DANE_TA
)
409 * Find the right insertion point for the new record.
411 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
412 * they can be processed first, as they require no chain building, and no
413 * expiration or hostname checks. Because DANE-EE(3) is numerically
414 * largest, this is accomplished via descending sort by "usage".
416 * We also sort in descending order by matching ordinal to simplify
417 * the implementation of digest agility in the verification code.
419 * The choice of order for the selector is not significant, so we
420 * use the same descending order for consistency.
422 num
= sk_danetls_record_num(dane
->trecs
);
423 for (i
= 0; i
< num
; ++i
) {
424 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
426 if (rec
->usage
> usage
)
428 if (rec
->usage
< usage
)
430 if (rec
->selector
> selector
)
432 if (rec
->selector
< selector
)
434 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
439 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
441 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
444 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
450 * Return 0 if there is only one version configured and it was disabled
451 * at configure time. Return 1 otherwise.
453 static int ssl_check_allowed_versions(int min_version
, int max_version
)
455 int minisdtls
= 0, maxisdtls
= 0;
457 /* Figure out if we're doing DTLS versions or TLS versions */
458 if (min_version
== DTLS1_BAD_VER
459 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
461 if (max_version
== DTLS1_BAD_VER
462 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
464 /* A wildcard version of 0 could be DTLS or TLS. */
465 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
466 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
467 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
471 if (minisdtls
|| maxisdtls
) {
472 /* Do DTLS version checks. */
473 if (min_version
== 0)
474 /* Ignore DTLS1_BAD_VER */
475 min_version
= DTLS1_VERSION
;
476 if (max_version
== 0)
477 max_version
= DTLS1_2_VERSION
;
478 #ifdef OPENSSL_NO_DTLS1_2
479 if (max_version
== DTLS1_2_VERSION
)
480 max_version
= DTLS1_VERSION
;
482 #ifdef OPENSSL_NO_DTLS1
483 if (min_version
== DTLS1_VERSION
)
484 min_version
= DTLS1_2_VERSION
;
486 /* Done massaging versions; do the check. */
488 #ifdef OPENSSL_NO_DTLS1
489 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
490 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
492 #ifdef OPENSSL_NO_DTLS1_2
493 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
494 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
499 /* Regular TLS version checks. */
500 if (min_version
== 0)
501 min_version
= SSL3_VERSION
;
502 if (max_version
== 0)
503 max_version
= TLS1_3_VERSION
;
504 #ifdef OPENSSL_NO_TLS1_3
505 if (max_version
== TLS1_3_VERSION
)
506 max_version
= TLS1_2_VERSION
;
508 #ifdef OPENSSL_NO_TLS1_2
509 if (max_version
== TLS1_2_VERSION
)
510 max_version
= TLS1_1_VERSION
;
512 #ifdef OPENSSL_NO_TLS1_1
513 if (max_version
== TLS1_1_VERSION
)
514 max_version
= TLS1_VERSION
;
516 #ifdef OPENSSL_NO_TLS1
517 if (max_version
== TLS1_VERSION
)
518 max_version
= SSL3_VERSION
;
520 #ifdef OPENSSL_NO_SSL3
521 if (min_version
== SSL3_VERSION
)
522 min_version
= TLS1_VERSION
;
524 #ifdef OPENSSL_NO_TLS1
525 if (min_version
== TLS1_VERSION
)
526 min_version
= TLS1_1_VERSION
;
528 #ifdef OPENSSL_NO_TLS1_1
529 if (min_version
== TLS1_1_VERSION
)
530 min_version
= TLS1_2_VERSION
;
532 #ifdef OPENSSL_NO_TLS1_2
533 if (min_version
== TLS1_2_VERSION
)
534 min_version
= TLS1_3_VERSION
;
536 /* Done massaging versions; do the check. */
538 #ifdef OPENSSL_NO_SSL3
539 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
541 #ifdef OPENSSL_NO_TLS1
542 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
544 #ifdef OPENSSL_NO_TLS1_1
545 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
547 #ifdef OPENSSL_NO_TLS1_2
548 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
550 #ifdef OPENSSL_NO_TLS1_3
551 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
559 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
561 * Define a VPROC function for HP NonStop build ssl library.
562 * This is used by platform version identification tools.
563 * Do not inline this procedure or make it static.
565 # define OPENSSL_VPROC_STRING_(x) x##_SSL
566 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
567 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
568 void OPENSSL_VPROC_FUNC(void) {}
572 static void clear_ciphers(SSL
*s
)
574 /* clear the current cipher */
575 ssl_clear_cipher_ctx(s
);
576 ssl_clear_hash_ctx(&s
->read_hash
);
577 ssl_clear_hash_ctx(&s
->write_hash
);
580 int SSL_clear(SSL
*s
)
582 if (s
->method
== NULL
) {
583 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
587 if (ssl_clear_bad_session(s
)) {
588 SSL_SESSION_free(s
->session
);
591 SSL_SESSION_free(s
->psksession
);
592 s
->psksession
= NULL
;
593 OPENSSL_free(s
->psksession_id
);
594 s
->psksession_id
= NULL
;
595 s
->psksession_id_len
= 0;
596 s
->hello_retry_request
= 0;
603 if (s
->renegotiate
) {
604 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
608 ossl_statem_clear(s
);
610 s
->version
= s
->method
->version
;
611 s
->client_version
= s
->version
;
612 s
->rwstate
= SSL_NOTHING
;
614 BUF_MEM_free(s
->init_buf
);
619 s
->key_update
= SSL_KEY_UPDATE_NONE
;
621 EVP_MD_CTX_free(s
->pha_dgst
);
624 /* Reset DANE verification result state */
627 X509_free(s
->dane
.mcert
);
628 s
->dane
.mcert
= NULL
;
629 s
->dane
.mtlsa
= NULL
;
631 /* Clear the verification result peername */
632 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
634 /* Clear any shared connection state */
635 OPENSSL_free(s
->shared_sigalgs
);
636 s
->shared_sigalgs
= NULL
;
637 s
->shared_sigalgslen
= 0;
640 * Check to see if we were changed into a different method, if so, revert
643 if (s
->method
!= s
->ctx
->method
) {
644 s
->method
->ssl_free(s
);
645 s
->method
= s
->ctx
->method
;
646 if (!s
->method
->ssl_new(s
))
649 if (!s
->method
->ssl_clear(s
))
653 RECORD_LAYER_clear(&s
->rlayer
);
658 #ifndef OPENSSL_NO_DEPRECATED_3_0
659 /** Used to change an SSL_CTXs default SSL method type */
660 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
662 STACK_OF(SSL_CIPHER
) *sk
;
666 if (!SSL_CTX_set_ciphersuites(ctx
, OSSL_default_ciphersuites())) {
667 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
670 sk
= ssl_create_cipher_list(ctx
->method
,
671 ctx
->tls13_ciphersuites
,
673 &(ctx
->cipher_list_by_id
),
674 OSSL_default_cipher_list(), ctx
->cert
);
675 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
676 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
683 SSL
*SSL_new(SSL_CTX
*ctx
)
688 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
691 if (ctx
->method
== NULL
) {
692 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
696 s
= OPENSSL_zalloc(sizeof(*s
));
701 s
->lock
= CRYPTO_THREAD_lock_new();
702 if (s
->lock
== NULL
) {
708 RECORD_LAYER_init(&s
->rlayer
, s
);
710 s
->options
= ctx
->options
;
711 s
->dane
.flags
= ctx
->dane
.flags
;
712 s
->min_proto_version
= ctx
->min_proto_version
;
713 s
->max_proto_version
= ctx
->max_proto_version
;
715 s
->max_cert_list
= ctx
->max_cert_list
;
716 s
->max_early_data
= ctx
->max_early_data
;
717 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
718 s
->num_tickets
= ctx
->num_tickets
;
719 s
->pha_enabled
= ctx
->pha_enabled
;
721 /* Shallow copy of the ciphersuites stack */
722 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
723 if (s
->tls13_ciphersuites
== NULL
)
727 * Earlier library versions used to copy the pointer to the CERT, not
728 * its contents; only when setting new parameters for the per-SSL
729 * copy, ssl_cert_new would be called (and the direct reference to
730 * the per-SSL_CTX settings would be lost, but those still were
731 * indirectly accessed for various purposes, and for that reason they
732 * used to be known as s->ctx->default_cert). Now we don't look at the
733 * SSL_CTX's CERT after having duplicated it once.
735 s
->cert
= ssl_cert_dup(ctx
->cert
);
739 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
740 s
->msg_callback
= ctx
->msg_callback
;
741 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
742 s
->verify_mode
= ctx
->verify_mode
;
743 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
744 s
->record_padding_cb
= ctx
->record_padding_cb
;
745 s
->record_padding_arg
= ctx
->record_padding_arg
;
746 s
->block_padding
= ctx
->block_padding
;
747 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
748 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
750 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
751 s
->verify_callback
= ctx
->default_verify_callback
;
752 s
->generate_session_id
= ctx
->generate_session_id
;
754 s
->param
= X509_VERIFY_PARAM_new();
755 if (s
->param
== NULL
)
757 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
758 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
760 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
761 s
->max_send_fragment
= ctx
->max_send_fragment
;
762 s
->split_send_fragment
= ctx
->split_send_fragment
;
763 s
->max_pipelines
= ctx
->max_pipelines
;
764 if (s
->max_pipelines
> 1)
765 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
766 if (ctx
->default_read_buf_len
> 0)
767 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
772 s
->ext
.debug_arg
= NULL
;
773 s
->ext
.ticket_expected
= 0;
774 s
->ext
.status_type
= ctx
->ext
.status_type
;
775 s
->ext
.status_expected
= 0;
776 s
->ext
.ocsp
.ids
= NULL
;
777 s
->ext
.ocsp
.exts
= NULL
;
778 s
->ext
.ocsp
.resp
= NULL
;
779 s
->ext
.ocsp
.resp_len
= 0;
781 s
->session_ctx
= ctx
;
782 #ifndef OPENSSL_NO_EC
783 if (ctx
->ext
.ecpointformats
) {
784 s
->ext
.ecpointformats
=
785 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
786 ctx
->ext
.ecpointformats_len
);
787 if (!s
->ext
.ecpointformats
)
789 s
->ext
.ecpointformats_len
=
790 ctx
->ext
.ecpointformats_len
;
793 if (ctx
->ext
.supportedgroups
) {
794 s
->ext
.supportedgroups
=
795 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
796 ctx
->ext
.supportedgroups_len
797 * sizeof(*ctx
->ext
.supportedgroups
));
798 if (!s
->ext
.supportedgroups
)
800 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
803 #ifndef OPENSSL_NO_NEXTPROTONEG
807 if (s
->ctx
->ext
.alpn
) {
808 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
809 if (s
->ext
.alpn
== NULL
)
811 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
812 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
815 s
->verified_chain
= NULL
;
816 s
->verify_result
= X509_V_OK
;
818 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
819 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
821 s
->method
= ctx
->method
;
823 s
->key_update
= SSL_KEY_UPDATE_NONE
;
825 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
826 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
828 if (!s
->method
->ssl_new(s
))
831 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
836 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
839 #ifndef OPENSSL_NO_PSK
840 s
->psk_client_callback
= ctx
->psk_client_callback
;
841 s
->psk_server_callback
= ctx
->psk_server_callback
;
843 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
844 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
846 s
->async_cb
= ctx
->async_cb
;
847 s
->async_cb_arg
= ctx
->async_cb_arg
;
851 #ifndef OPENSSL_NO_CT
852 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
853 ctx
->ct_validation_callback_arg
))
860 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
864 int SSL_is_dtls(const SSL
*s
)
866 return SSL_IS_DTLS(s
) ? 1 : 0;
869 int SSL_up_ref(SSL
*s
)
873 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
876 REF_PRINT_COUNT("SSL", s
);
877 REF_ASSERT_ISNT(i
< 2);
878 return ((i
> 1) ? 1 : 0);
881 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
882 unsigned int sid_ctx_len
)
884 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
885 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
886 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
889 ctx
->sid_ctx_length
= sid_ctx_len
;
890 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
895 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
896 unsigned int sid_ctx_len
)
898 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
899 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
900 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
903 ssl
->sid_ctx_length
= sid_ctx_len
;
904 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
909 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
911 CRYPTO_THREAD_write_lock(ctx
->lock
);
912 ctx
->generate_session_id
= cb
;
913 CRYPTO_THREAD_unlock(ctx
->lock
);
917 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
919 CRYPTO_THREAD_write_lock(ssl
->lock
);
920 ssl
->generate_session_id
= cb
;
921 CRYPTO_THREAD_unlock(ssl
->lock
);
925 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
929 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
930 * we can "construct" a session to give us the desired check - i.e. to
931 * find if there's a session in the hash table that would conflict with
932 * any new session built out of this id/id_len and the ssl_version in use
937 if (id_len
> sizeof(r
.session_id
))
940 r
.ssl_version
= ssl
->version
;
941 r
.session_id_length
= id_len
;
942 memcpy(r
.session_id
, id
, id_len
);
944 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
945 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
946 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
950 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
952 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
955 int SSL_set_purpose(SSL
*s
, int purpose
)
957 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
960 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
962 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
965 int SSL_set_trust(SSL
*s
, int trust
)
967 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
970 int SSL_set1_host(SSL
*s
, const char *hostname
)
972 /* If a hostname is provided and parses as an IP address,
973 * treat it as such. */
974 if (hostname
&& X509_VERIFY_PARAM_set1_ip_asc(s
->param
, hostname
) == 1)
977 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
980 int SSL_add1_host(SSL
*s
, const char *hostname
)
982 /* If a hostname is provided and parses as an IP address,
983 * treat it as such. */
986 ASN1_OCTET_STRING
*ip
;
989 ip
= a2i_IPADDRESS(hostname
);
991 /* We didn't want it; only to check if it *is* an IP address */
992 ASN1_OCTET_STRING_free(ip
);
994 old_ip
= X509_VERIFY_PARAM_get1_ip_asc(s
->param
);
997 OPENSSL_free(old_ip
);
998 /* There can be only one IP address */
1002 return X509_VERIFY_PARAM_set1_ip_asc(s
->param
, hostname
);
1006 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
1009 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
1011 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
1014 const char *SSL_get0_peername(SSL
*s
)
1016 return X509_VERIFY_PARAM_get0_peername(s
->param
);
1019 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
1021 return dane_ctx_enable(&ctx
->dane
);
1024 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
1026 unsigned long orig
= ctx
->dane
.flags
;
1028 ctx
->dane
.flags
|= flags
;
1032 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
1034 unsigned long orig
= ctx
->dane
.flags
;
1036 ctx
->dane
.flags
&= ~flags
;
1040 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1042 SSL_DANE
*dane
= &s
->dane
;
1044 if (s
->ctx
->dane
.mdmax
== 0) {
1045 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1048 if (dane
->trecs
!= NULL
) {
1049 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1054 * Default SNI name. This rejects empty names, while set1_host below
1055 * accepts them and disables host name checks. To avoid side-effects with
1056 * invalid input, set the SNI name first.
1058 if (s
->ext
.hostname
== NULL
) {
1059 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1060 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1065 /* Primary RFC6125 reference identifier */
1066 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1067 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1073 dane
->dctx
= &s
->ctx
->dane
;
1074 dane
->trecs
= sk_danetls_record_new_null();
1076 if (dane
->trecs
== NULL
) {
1077 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1083 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1085 unsigned long orig
= ssl
->dane
.flags
;
1087 ssl
->dane
.flags
|= flags
;
1091 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1093 unsigned long orig
= ssl
->dane
.flags
;
1095 ssl
->dane
.flags
&= ~flags
;
1099 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1101 SSL_DANE
*dane
= &s
->dane
;
1103 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1107 *mcert
= dane
->mcert
;
1109 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1114 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1115 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1117 SSL_DANE
*dane
= &s
->dane
;
1119 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1123 *usage
= dane
->mtlsa
->usage
;
1125 *selector
= dane
->mtlsa
->selector
;
1127 *mtype
= dane
->mtlsa
->mtype
;
1129 *data
= dane
->mtlsa
->data
;
1131 *dlen
= dane
->mtlsa
->dlen
;
1136 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1141 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1142 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1144 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1147 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1150 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1153 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1155 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1158 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1160 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1163 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1168 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1173 void SSL_certs_clear(SSL
*s
)
1175 ssl_cert_clear_certs(s
->cert
);
1178 void SSL_free(SSL
*s
)
1184 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1185 REF_PRINT_COUNT("SSL", s
);
1188 REF_ASSERT_ISNT(i
< 0);
1190 X509_VERIFY_PARAM_free(s
->param
);
1191 dane_final(&s
->dane
);
1192 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1194 RECORD_LAYER_release(&s
->rlayer
);
1196 /* Ignore return value */
1197 ssl_free_wbio_buffer(s
);
1199 BIO_free_all(s
->wbio
);
1201 BIO_free_all(s
->rbio
);
1204 BUF_MEM_free(s
->init_buf
);
1206 /* add extra stuff */
1207 sk_SSL_CIPHER_free(s
->cipher_list
);
1208 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1209 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1210 sk_SSL_CIPHER_free(s
->peer_ciphers
);
1212 /* Make the next call work :-) */
1213 if (s
->session
!= NULL
) {
1214 ssl_clear_bad_session(s
);
1215 SSL_SESSION_free(s
->session
);
1217 SSL_SESSION_free(s
->psksession
);
1218 OPENSSL_free(s
->psksession_id
);
1222 ssl_cert_free(s
->cert
);
1223 OPENSSL_free(s
->shared_sigalgs
);
1224 /* Free up if allocated */
1226 OPENSSL_free(s
->ext
.hostname
);
1227 SSL_CTX_free(s
->session_ctx
);
1228 #ifndef OPENSSL_NO_EC
1229 OPENSSL_free(s
->ext
.ecpointformats
);
1230 OPENSSL_free(s
->ext
.peer_ecpointformats
);
1231 #endif /* OPENSSL_NO_EC */
1232 OPENSSL_free(s
->ext
.supportedgroups
);
1233 OPENSSL_free(s
->ext
.peer_supportedgroups
);
1234 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1235 #ifndef OPENSSL_NO_OCSP
1236 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1238 #ifndef OPENSSL_NO_CT
1239 SCT_LIST_free(s
->scts
);
1240 OPENSSL_free(s
->ext
.scts
);
1242 OPENSSL_free(s
->ext
.ocsp
.resp
);
1243 OPENSSL_free(s
->ext
.alpn
);
1244 OPENSSL_free(s
->ext
.tls13_cookie
);
1245 if (s
->clienthello
!= NULL
)
1246 OPENSSL_free(s
->clienthello
->pre_proc_exts
);
1247 OPENSSL_free(s
->clienthello
);
1248 OPENSSL_free(s
->pha_context
);
1249 EVP_MD_CTX_free(s
->pha_dgst
);
1251 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1252 sk_X509_NAME_pop_free(s
->client_ca_names
, X509_NAME_free
);
1254 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1256 if (s
->method
!= NULL
)
1257 s
->method
->ssl_free(s
);
1259 SSL_CTX_free(s
->ctx
);
1261 ASYNC_WAIT_CTX_free(s
->waitctx
);
1263 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1264 OPENSSL_free(s
->ext
.npn
);
1267 #ifndef OPENSSL_NO_SRTP
1268 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1271 CRYPTO_THREAD_lock_free(s
->lock
);
1276 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1278 BIO_free_all(s
->rbio
);
1282 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1285 * If the output buffering BIO is still in place, remove it
1287 if (s
->bbio
!= NULL
)
1288 s
->wbio
= BIO_pop(s
->wbio
);
1290 BIO_free_all(s
->wbio
);
1293 /* Re-attach |bbio| to the new |wbio|. */
1294 if (s
->bbio
!= NULL
)
1295 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1298 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1301 * For historical reasons, this function has many different cases in
1302 * ownership handling.
1305 /* If nothing has changed, do nothing */
1306 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1310 * If the two arguments are equal then one fewer reference is granted by the
1311 * caller than we want to take
1313 if (rbio
!= NULL
&& rbio
== wbio
)
1317 * If only the wbio is changed only adopt one reference.
1319 if (rbio
== SSL_get_rbio(s
)) {
1320 SSL_set0_wbio(s
, wbio
);
1324 * There is an asymmetry here for historical reasons. If only the rbio is
1325 * changed AND the rbio and wbio were originally different, then we only
1326 * adopt one reference.
1328 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1329 SSL_set0_rbio(s
, rbio
);
1333 /* Otherwise, adopt both references. */
1334 SSL_set0_rbio(s
, rbio
);
1335 SSL_set0_wbio(s
, wbio
);
1338 BIO
*SSL_get_rbio(const SSL
*s
)
1343 BIO
*SSL_get_wbio(const SSL
*s
)
1345 if (s
->bbio
!= NULL
) {
1347 * If |bbio| is active, the true caller-configured BIO is its
1350 return BIO_next(s
->bbio
);
1355 int SSL_get_fd(const SSL
*s
)
1357 return SSL_get_rfd(s
);
1360 int SSL_get_rfd(const SSL
*s
)
1365 b
= SSL_get_rbio(s
);
1366 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1368 BIO_get_fd(r
, &ret
);
1372 int SSL_get_wfd(const SSL
*s
)
1377 b
= SSL_get_wbio(s
);
1378 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1380 BIO_get_fd(r
, &ret
);
1384 #ifndef OPENSSL_NO_SOCK
1385 int SSL_set_fd(SSL
*s
, int fd
)
1390 bio
= BIO_new(BIO_s_socket());
1393 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1396 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1397 SSL_set_bio(s
, bio
, bio
);
1398 #ifndef OPENSSL_NO_KTLS
1400 * The new socket is created successfully regardless of ktls_enable.
1401 * ktls_enable doesn't change any functionality of the socket, except
1402 * changing the setsockopt to enable the processing of ktls_start.
1403 * Thus, it is not a problem to call it for non-TLS sockets.
1406 #endif /* OPENSSL_NO_KTLS */
1412 int SSL_set_wfd(SSL
*s
, int fd
)
1414 BIO
*rbio
= SSL_get_rbio(s
);
1416 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1417 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1418 BIO
*bio
= BIO_new(BIO_s_socket());
1421 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1424 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1425 SSL_set0_wbio(s
, bio
);
1426 #ifndef OPENSSL_NO_KTLS
1428 * The new socket is created successfully regardless of ktls_enable.
1429 * ktls_enable doesn't change any functionality of the socket, except
1430 * changing the setsockopt to enable the processing of ktls_start.
1431 * Thus, it is not a problem to call it for non-TLS sockets.
1434 #endif /* OPENSSL_NO_KTLS */
1437 SSL_set0_wbio(s
, rbio
);
1442 int SSL_set_rfd(SSL
*s
, int fd
)
1444 BIO
*wbio
= SSL_get_wbio(s
);
1446 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1447 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1448 BIO
*bio
= BIO_new(BIO_s_socket());
1451 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1454 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1455 SSL_set0_rbio(s
, bio
);
1458 SSL_set0_rbio(s
, wbio
);
1465 /* return length of latest Finished message we sent, copy to 'buf' */
1466 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1470 ret
= s
->s3
.tmp
.finish_md_len
;
1473 memcpy(buf
, s
->s3
.tmp
.finish_md
, count
);
1477 /* return length of latest Finished message we expected, copy to 'buf' */
1478 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1482 ret
= s
->s3
.tmp
.peer_finish_md_len
;
1485 memcpy(buf
, s
->s3
.tmp
.peer_finish_md
, count
);
1489 int SSL_get_verify_mode(const SSL
*s
)
1491 return s
->verify_mode
;
1494 int SSL_get_verify_depth(const SSL
*s
)
1496 return X509_VERIFY_PARAM_get_depth(s
->param
);
1499 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1500 return s
->verify_callback
;
1503 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1505 return ctx
->verify_mode
;
1508 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1510 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1513 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1514 return ctx
->default_verify_callback
;
1517 void SSL_set_verify(SSL
*s
, int mode
,
1518 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1520 s
->verify_mode
= mode
;
1521 if (callback
!= NULL
)
1522 s
->verify_callback
= callback
;
1525 void SSL_set_verify_depth(SSL
*s
, int depth
)
1527 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1530 void SSL_set_read_ahead(SSL
*s
, int yes
)
1532 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1535 int SSL_get_read_ahead(const SSL
*s
)
1537 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1540 int SSL_pending(const SSL
*s
)
1542 size_t pending
= s
->method
->ssl_pending(s
);
1545 * SSL_pending cannot work properly if read-ahead is enabled
1546 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1547 * impossible to fix since SSL_pending cannot report errors that may be
1548 * observed while scanning the new data. (Note that SSL_pending() is
1549 * often used as a boolean value, so we'd better not return -1.)
1551 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1552 * we just return INT_MAX.
1554 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1557 int SSL_has_pending(const SSL
*s
)
1560 * Similar to SSL_pending() but returns a 1 to indicate that we have
1561 * unprocessed data available or 0 otherwise (as opposed to the number of
1562 * bytes available). Unlike SSL_pending() this will take into account
1563 * read_ahead data. A 1 return simply indicates that we have unprocessed
1564 * data. That data may not result in any application data, or we may fail
1565 * to parse the records for some reason.
1567 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1570 return RECORD_LAYER_read_pending(&s
->rlayer
);
1573 X509
*SSL_get1_peer_certificate(const SSL
*s
)
1575 X509
*r
= SSL_get0_peer_certificate(s
);
1583 X509
*SSL_get0_peer_certificate(const SSL
*s
)
1585 if ((s
== NULL
) || (s
->session
== NULL
))
1588 return s
->session
->peer
;
1591 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1595 if ((s
== NULL
) || (s
->session
== NULL
))
1598 r
= s
->session
->peer_chain
;
1601 * If we are a client, cert_chain includes the peer's own certificate; if
1602 * we are a server, it does not.
1609 * Now in theory, since the calling process own 't' it should be safe to
1610 * modify. We need to be able to read f without being hassled
1612 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1615 /* Do we need to to SSL locking? */
1616 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1621 * what if we are setup for one protocol version but want to talk another
1623 if (t
->method
!= f
->method
) {
1624 t
->method
->ssl_free(t
);
1625 t
->method
= f
->method
;
1626 if (t
->method
->ssl_new(t
) == 0)
1630 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1631 ssl_cert_free(t
->cert
);
1633 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1640 /* Fix this so it checks all the valid key/cert options */
1641 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1643 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1644 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1647 if (ctx
->cert
->key
->privatekey
== NULL
) {
1648 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1651 return X509_check_private_key
1652 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1655 /* Fix this function so that it takes an optional type parameter */
1656 int SSL_check_private_key(const SSL
*ssl
)
1659 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1662 if (ssl
->cert
->key
->x509
== NULL
) {
1663 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1666 if (ssl
->cert
->key
->privatekey
== NULL
) {
1667 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1670 return X509_check_private_key(ssl
->cert
->key
->x509
,
1671 ssl
->cert
->key
->privatekey
);
1674 int SSL_waiting_for_async(SSL
*s
)
1682 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1684 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1688 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1691 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1692 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1694 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1698 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1702 int SSL_CTX_set_async_callback(SSL_CTX
*ctx
, SSL_async_callback_fn callback
)
1704 ctx
->async_cb
= callback
;
1708 int SSL_CTX_set_async_callback_arg(SSL_CTX
*ctx
, void *arg
)
1710 ctx
->async_cb_arg
= arg
;
1714 int SSL_set_async_callback(SSL
*s
, SSL_async_callback_fn callback
)
1716 s
->async_cb
= callback
;
1720 int SSL_set_async_callback_arg(SSL
*s
, void *arg
)
1722 s
->async_cb_arg
= arg
;
1726 int SSL_get_async_status(SSL
*s
, int *status
)
1728 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1732 *status
= ASYNC_WAIT_CTX_get_status(ctx
);
1736 int SSL_accept(SSL
*s
)
1738 if (s
->handshake_func
== NULL
) {
1739 /* Not properly initialized yet */
1740 SSL_set_accept_state(s
);
1743 return SSL_do_handshake(s
);
1746 int SSL_connect(SSL
*s
)
1748 if (s
->handshake_func
== NULL
) {
1749 /* Not properly initialized yet */
1750 SSL_set_connect_state(s
);
1753 return SSL_do_handshake(s
);
1756 long SSL_get_default_timeout(const SSL
*s
)
1758 return s
->method
->get_timeout();
1761 static int ssl_async_wait_ctx_cb(void *arg
)
1763 SSL
*s
= (SSL
*)arg
;
1765 return s
->async_cb(s
, s
->async_cb_arg
);
1768 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1769 int (*func
) (void *))
1772 if (s
->waitctx
== NULL
) {
1773 s
->waitctx
= ASYNC_WAIT_CTX_new();
1774 if (s
->waitctx
== NULL
)
1776 if (s
->async_cb
!= NULL
1777 && !ASYNC_WAIT_CTX_set_callback
1778 (s
->waitctx
, ssl_async_wait_ctx_cb
, s
))
1781 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1782 sizeof(struct ssl_async_args
))) {
1784 s
->rwstate
= SSL_NOTHING
;
1785 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1788 s
->rwstate
= SSL_ASYNC_PAUSED
;
1791 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1797 s
->rwstate
= SSL_NOTHING
;
1798 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1799 /* Shouldn't happen */
1804 static int ssl_io_intern(void *vargs
)
1806 struct ssl_async_args
*args
;
1811 args
= (struct ssl_async_args
*)vargs
;
1815 switch (args
->type
) {
1817 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1819 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1821 return args
->f
.func_other(s
);
1826 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1828 if (s
->handshake_func
== NULL
) {
1829 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1833 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1834 s
->rwstate
= SSL_NOTHING
;
1838 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1839 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1840 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1844 * If we are a client and haven't received the ServerHello etc then we
1847 ossl_statem_check_finish_init(s
, 0);
1849 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1850 struct ssl_async_args args
;
1856 args
.type
= READFUNC
;
1857 args
.f
.func_read
= s
->method
->ssl_read
;
1859 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1860 *readbytes
= s
->asyncrw
;
1863 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1867 int SSL_read(SSL
*s
, void *buf
, int num
)
1873 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1877 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1880 * The cast is safe here because ret should be <= INT_MAX because num is
1884 ret
= (int)readbytes
;
1889 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1891 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1898 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1903 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1904 return SSL_READ_EARLY_DATA_ERROR
;
1907 switch (s
->early_data_state
) {
1908 case SSL_EARLY_DATA_NONE
:
1909 if (!SSL_in_before(s
)) {
1910 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1911 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1912 return SSL_READ_EARLY_DATA_ERROR
;
1916 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1917 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1918 ret
= SSL_accept(s
);
1921 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1922 return SSL_READ_EARLY_DATA_ERROR
;
1926 case SSL_EARLY_DATA_READ_RETRY
:
1927 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1928 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1929 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1931 * State machine will update early_data_state to
1932 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1935 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1936 != SSL_EARLY_DATA_FINISHED_READING
)) {
1937 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1938 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1939 : SSL_READ_EARLY_DATA_ERROR
;
1942 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1945 return SSL_READ_EARLY_DATA_FINISH
;
1948 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1949 return SSL_READ_EARLY_DATA_ERROR
;
1953 int SSL_get_early_data_status(const SSL
*s
)
1955 return s
->ext
.early_data
;
1958 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1960 if (s
->handshake_func
== NULL
) {
1961 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1965 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1968 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1969 struct ssl_async_args args
;
1975 args
.type
= READFUNC
;
1976 args
.f
.func_read
= s
->method
->ssl_peek
;
1978 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1979 *readbytes
= s
->asyncrw
;
1982 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1986 int SSL_peek(SSL
*s
, void *buf
, int num
)
1992 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1996 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1999 * The cast is safe here because ret should be <= INT_MAX because num is
2003 ret
= (int)readbytes
;
2009 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2011 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
2018 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2020 if (s
->handshake_func
== NULL
) {
2021 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
2025 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
2026 s
->rwstate
= SSL_NOTHING
;
2027 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2031 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2032 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
2033 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
2034 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2037 /* If we are a client and haven't sent the Finished we better do that */
2038 ossl_statem_check_finish_init(s
, 1);
2040 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2042 struct ssl_async_args args
;
2045 args
.buf
= (void *)buf
;
2047 args
.type
= WRITEFUNC
;
2048 args
.f
.func_write
= s
->method
->ssl_write
;
2050 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2051 *written
= s
->asyncrw
;
2054 return s
->method
->ssl_write(s
, buf
, num
, written
);
2058 ossl_ssize_t
SSL_sendfile(SSL
*s
, int fd
, off_t offset
, size_t size
, int flags
)
2062 if (s
->handshake_func
== NULL
) {
2063 SSLerr(SSL_F_SSL_SENDFILE
, SSL_R_UNINITIALIZED
);
2067 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
2068 s
->rwstate
= SSL_NOTHING
;
2069 SSLerr(SSL_F_SSL_SENDFILE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2073 if (!BIO_get_ktls_send(s
->wbio
)) {
2074 SSLerr(SSL_F_SSL_SENDFILE
, SSL_R_UNINITIALIZED
);
2078 /* If we have an alert to send, lets send it */
2079 if (s
->s3
.alert_dispatch
) {
2080 ret
= (ossl_ssize_t
)s
->method
->ssl_dispatch_alert(s
);
2082 /* SSLfatal() already called if appropriate */
2085 /* if it went, fall through and send more stuff */
2088 s
->rwstate
= SSL_WRITING
;
2089 if (BIO_flush(s
->wbio
) <= 0) {
2090 if (!BIO_should_retry(s
->wbio
)) {
2091 s
->rwstate
= SSL_NOTHING
;
2094 set_sys_error(EAGAIN
);
2100 #ifdef OPENSSL_NO_KTLS
2101 ERR_raise_data(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
,
2102 "can't call ktls_sendfile(), ktls disabled");
2105 ret
= ktls_sendfile(SSL_get_wfd(s
), fd
, offset
, size
, flags
);
2107 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2108 if ((get_last_sys_error() == EAGAIN
) ||
2109 (get_last_sys_error() == EINTR
) ||
2110 (get_last_sys_error() == EBUSY
))
2111 BIO_set_retry_write(s
->wbio
);
2114 SSLerr(SSL_F_SSL_SENDFILE
, SSL_R_UNINITIALIZED
);
2117 s
->rwstate
= SSL_NOTHING
;
2122 int SSL_write(SSL
*s
, const void *buf
, int num
)
2128 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
2132 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
2135 * The cast is safe here because ret should be <= INT_MAX because num is
2144 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2146 int ret
= ssl_write_internal(s
, buf
, num
, written
);
2153 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2155 int ret
, early_data_state
;
2157 uint32_t partialwrite
;
2159 switch (s
->early_data_state
) {
2160 case SSL_EARLY_DATA_NONE
:
2162 || !SSL_in_before(s
)
2163 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
2164 && (s
->psk_use_session_cb
== NULL
))) {
2165 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
2166 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2171 case SSL_EARLY_DATA_CONNECT_RETRY
:
2172 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2173 ret
= SSL_connect(s
);
2176 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2181 case SSL_EARLY_DATA_WRITE_RETRY
:
2182 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2184 * We disable partial write for early data because we don't keep track
2185 * of how many bytes we've written between the SSL_write_ex() call and
2186 * the flush if the flush needs to be retried)
2188 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2189 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2190 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2191 s
->mode
|= partialwrite
;
2193 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2196 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2199 case SSL_EARLY_DATA_WRITE_FLUSH
:
2200 /* The buffering BIO is still in place so we need to flush it */
2201 if (statem_flush(s
) != 1)
2204 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2207 case SSL_EARLY_DATA_FINISHED_READING
:
2208 case SSL_EARLY_DATA_READ_RETRY
:
2209 early_data_state
= s
->early_data_state
;
2210 /* We are a server writing to an unauthenticated client */
2211 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2212 ret
= SSL_write_ex(s
, buf
, num
, written
);
2213 /* The buffering BIO is still in place */
2215 (void)BIO_flush(s
->wbio
);
2216 s
->early_data_state
= early_data_state
;
2220 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2225 int SSL_shutdown(SSL
*s
)
2228 * Note that this function behaves differently from what one might
2229 * expect. Return values are 0 for no success (yet), 1 for success; but
2230 * calling it once is usually not enough, even if blocking I/O is used
2231 * (see ssl3_shutdown).
2234 if (s
->handshake_func
== NULL
) {
2235 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2239 if (!SSL_in_init(s
)) {
2240 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2241 struct ssl_async_args args
;
2244 args
.type
= OTHERFUNC
;
2245 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2247 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2249 return s
->method
->ssl_shutdown(s
);
2252 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2257 int SSL_key_update(SSL
*s
, int updatetype
)
2260 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2261 * negotiated, and that it is appropriate to call SSL_key_update() instead
2262 * of SSL_renegotiate().
2264 if (!SSL_IS_TLS13(s
)) {
2265 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2269 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2270 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2271 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2275 if (!SSL_is_init_finished(s
)) {
2276 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2280 ossl_statem_set_in_init(s
, 1);
2281 s
->key_update
= updatetype
;
2285 int SSL_get_key_update_type(const SSL
*s
)
2287 return s
->key_update
;
2290 int SSL_renegotiate(SSL
*s
)
2292 if (SSL_IS_TLS13(s
)) {
2293 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2297 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2298 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2305 return s
->method
->ssl_renegotiate(s
);
2308 int SSL_renegotiate_abbreviated(SSL
*s
)
2310 if (SSL_IS_TLS13(s
)) {
2311 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2315 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2316 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2323 return s
->method
->ssl_renegotiate(s
);
2326 int SSL_renegotiate_pending(const SSL
*s
)
2329 * becomes true when negotiation is requested; false again once a
2330 * handshake has finished
2332 return (s
->renegotiate
!= 0);
2335 int SSL_new_session_ticket(SSL
*s
)
2337 if (SSL_in_init(s
) || SSL_IS_FIRST_HANDSHAKE(s
) || !s
->server
2338 || !SSL_IS_TLS13(s
))
2340 s
->ext
.extra_tickets_expected
++;
2344 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2349 case SSL_CTRL_GET_READ_AHEAD
:
2350 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2351 case SSL_CTRL_SET_READ_AHEAD
:
2352 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2353 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2356 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2357 s
->msg_callback_arg
= parg
;
2361 return (s
->mode
|= larg
);
2362 case SSL_CTRL_CLEAR_MODE
:
2363 return (s
->mode
&= ~larg
);
2364 case SSL_CTRL_GET_MAX_CERT_LIST
:
2365 return (long)s
->max_cert_list
;
2366 case SSL_CTRL_SET_MAX_CERT_LIST
:
2369 l
= (long)s
->max_cert_list
;
2370 s
->max_cert_list
= (size_t)larg
;
2372 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2373 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2375 #ifndef OPENSSL_NO_KTLS
2376 if (s
->wbio
!= NULL
&& BIO_get_ktls_send(s
->wbio
))
2378 #endif /* OPENSSL_NO_KTLS */
2379 s
->max_send_fragment
= larg
;
2380 if (s
->max_send_fragment
< s
->split_send_fragment
)
2381 s
->split_send_fragment
= s
->max_send_fragment
;
2383 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2384 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2386 s
->split_send_fragment
= larg
;
2388 case SSL_CTRL_SET_MAX_PIPELINES
:
2389 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2391 s
->max_pipelines
= larg
;
2393 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2395 case SSL_CTRL_GET_RI_SUPPORT
:
2396 return s
->s3
.send_connection_binding
;
2397 case SSL_CTRL_CERT_FLAGS
:
2398 return (s
->cert
->cert_flags
|= larg
);
2399 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2400 return (s
->cert
->cert_flags
&= ~larg
);
2402 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2404 if (s
->s3
.tmp
.ciphers_raw
== NULL
)
2406 *(unsigned char **)parg
= s
->s3
.tmp
.ciphers_raw
;
2407 return (int)s
->s3
.tmp
.ciphers_rawlen
;
2409 return TLS_CIPHER_LEN
;
2411 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2412 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2414 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2418 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2419 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2420 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2421 &s
->min_proto_version
);
2422 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2423 return s
->min_proto_version
;
2424 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2425 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2426 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2427 &s
->max_proto_version
);
2428 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2429 return s
->max_proto_version
;
2431 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2435 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2438 case SSL_CTRL_SET_MSG_CALLBACK
:
2439 s
->msg_callback
= (void (*)
2440 (int write_p
, int version
, int content_type
,
2441 const void *buf
, size_t len
, SSL
*ssl
,
2446 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2450 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2452 return ctx
->sessions
;
2455 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2458 /* For some cases with ctx == NULL perform syntax checks */
2461 case SSL_CTRL_SET_GROUPS_LIST
:
2462 return tls1_set_groups_list(ctx
, NULL
, NULL
, parg
);
2463 case SSL_CTRL_SET_SIGALGS_LIST
:
2464 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2465 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2472 case SSL_CTRL_GET_READ_AHEAD
:
2473 return ctx
->read_ahead
;
2474 case SSL_CTRL_SET_READ_AHEAD
:
2475 l
= ctx
->read_ahead
;
2476 ctx
->read_ahead
= larg
;
2479 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2480 ctx
->msg_callback_arg
= parg
;
2483 case SSL_CTRL_GET_MAX_CERT_LIST
:
2484 return (long)ctx
->max_cert_list
;
2485 case SSL_CTRL_SET_MAX_CERT_LIST
:
2488 l
= (long)ctx
->max_cert_list
;
2489 ctx
->max_cert_list
= (size_t)larg
;
2492 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2495 l
= (long)ctx
->session_cache_size
;
2496 ctx
->session_cache_size
= (size_t)larg
;
2498 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2499 return (long)ctx
->session_cache_size
;
2500 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2501 l
= ctx
->session_cache_mode
;
2502 ctx
->session_cache_mode
= larg
;
2504 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2505 return ctx
->session_cache_mode
;
2507 case SSL_CTRL_SESS_NUMBER
:
2508 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2509 case SSL_CTRL_SESS_CONNECT
:
2510 return tsan_load(&ctx
->stats
.sess_connect
);
2511 case SSL_CTRL_SESS_CONNECT_GOOD
:
2512 return tsan_load(&ctx
->stats
.sess_connect_good
);
2513 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2514 return tsan_load(&ctx
->stats
.sess_connect_renegotiate
);
2515 case SSL_CTRL_SESS_ACCEPT
:
2516 return tsan_load(&ctx
->stats
.sess_accept
);
2517 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2518 return tsan_load(&ctx
->stats
.sess_accept_good
);
2519 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2520 return tsan_load(&ctx
->stats
.sess_accept_renegotiate
);
2521 case SSL_CTRL_SESS_HIT
:
2522 return tsan_load(&ctx
->stats
.sess_hit
);
2523 case SSL_CTRL_SESS_CB_HIT
:
2524 return tsan_load(&ctx
->stats
.sess_cb_hit
);
2525 case SSL_CTRL_SESS_MISSES
:
2526 return tsan_load(&ctx
->stats
.sess_miss
);
2527 case SSL_CTRL_SESS_TIMEOUTS
:
2528 return tsan_load(&ctx
->stats
.sess_timeout
);
2529 case SSL_CTRL_SESS_CACHE_FULL
:
2530 return tsan_load(&ctx
->stats
.sess_cache_full
);
2532 return (ctx
->mode
|= larg
);
2533 case SSL_CTRL_CLEAR_MODE
:
2534 return (ctx
->mode
&= ~larg
);
2535 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2536 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2538 ctx
->max_send_fragment
= larg
;
2539 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2540 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2542 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2543 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2545 ctx
->split_send_fragment
= larg
;
2547 case SSL_CTRL_SET_MAX_PIPELINES
:
2548 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2550 ctx
->max_pipelines
= larg
;
2552 case SSL_CTRL_CERT_FLAGS
:
2553 return (ctx
->cert
->cert_flags
|= larg
);
2554 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2555 return (ctx
->cert
->cert_flags
&= ~larg
);
2556 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2557 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2558 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2559 &ctx
->min_proto_version
);
2560 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2561 return ctx
->min_proto_version
;
2562 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2563 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2564 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2565 &ctx
->max_proto_version
);
2566 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2567 return ctx
->max_proto_version
;
2569 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2573 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2576 case SSL_CTRL_SET_MSG_CALLBACK
:
2577 ctx
->msg_callback
= (void (*)
2578 (int write_p
, int version
, int content_type
,
2579 const void *buf
, size_t len
, SSL
*ssl
,
2584 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2588 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2597 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2598 const SSL_CIPHER
*const *bp
)
2600 if ((*ap
)->id
> (*bp
)->id
)
2602 if ((*ap
)->id
< (*bp
)->id
)
2607 /** return a STACK of the ciphers available for the SSL and in order of
2609 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2612 if (s
->cipher_list
!= NULL
) {
2613 return s
->cipher_list
;
2614 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2615 return s
->ctx
->cipher_list
;
2621 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2623 if ((s
== NULL
) || !s
->server
)
2625 return s
->peer_ciphers
;
2628 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2630 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2633 ciphers
= SSL_get_ciphers(s
);
2636 if (!ssl_set_client_disabled(s
))
2638 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2639 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2640 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2642 sk
= sk_SSL_CIPHER_new_null();
2645 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2646 sk_SSL_CIPHER_free(sk
);
2654 /** return a STACK of the ciphers available for the SSL and in order of
2656 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2659 if (s
->cipher_list_by_id
!= NULL
) {
2660 return s
->cipher_list_by_id
;
2661 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2662 return s
->ctx
->cipher_list_by_id
;
2668 /** The old interface to get the same thing as SSL_get_ciphers() */
2669 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2671 const SSL_CIPHER
*c
;
2672 STACK_OF(SSL_CIPHER
) *sk
;
2676 sk
= SSL_get_ciphers(s
);
2677 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2679 c
= sk_SSL_CIPHER_value(sk
, n
);
2685 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2687 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2690 return ctx
->cipher_list
;
2695 * Distinguish between ciphers controlled by set_ciphersuite() and
2696 * set_cipher_list() when counting.
2698 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER
) *sk
)
2701 const SSL_CIPHER
*c
;
2705 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); ++i
) {
2706 c
= sk_SSL_CIPHER_value(sk
, i
);
2707 if (c
->min_tls
>= TLS1_3_VERSION
)
2714 /** specify the ciphers to be used by default by the SSL_CTX */
2715 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2717 STACK_OF(SSL_CIPHER
) *sk
;
2719 sk
= ssl_create_cipher_list(ctx
->method
, ctx
->tls13_ciphersuites
,
2720 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
2723 * ssl_create_cipher_list may return an empty stack if it was unable to
2724 * find a cipher matching the given rule string (for example if the rule
2725 * string specifies a cipher which has been disabled). This is not an
2726 * error as far as ssl_create_cipher_list is concerned, and hence
2727 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2731 else if (cipher_list_tls12_num(sk
) == 0) {
2732 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2738 /** specify the ciphers to be used by the SSL */
2739 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2741 STACK_OF(SSL_CIPHER
) *sk
;
2743 sk
= ssl_create_cipher_list(s
->ctx
->method
, s
->tls13_ciphersuites
,
2744 &s
->cipher_list
, &s
->cipher_list_by_id
, str
,
2746 /* see comment in SSL_CTX_set_cipher_list */
2749 else if (cipher_list_tls12_num(sk
) == 0) {
2750 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2756 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
2759 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
2760 const SSL_CIPHER
*c
;
2764 || s
->peer_ciphers
== NULL
2769 clntsk
= s
->peer_ciphers
;
2770 srvrsk
= SSL_get_ciphers(s
);
2771 if (clntsk
== NULL
|| srvrsk
== NULL
)
2774 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
2777 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
2780 c
= sk_SSL_CIPHER_value(clntsk
, i
);
2781 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
2784 n
= strlen(c
->name
);
2801 * Return the requested servername (SNI) value. Note that the behaviour varies
2803 * - whether this is called by the client or the server,
2804 * - if we are before or during/after the handshake,
2805 * - if a resumption or normal handshake is being attempted/has occurred
2806 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
2808 * Note that only the host_name type is defined (RFC 3546).
2810 const char *SSL_get_servername(const SSL
*s
, const int type
)
2813 * If we don't know if we are the client or the server yet then we assume
2816 int server
= s
->handshake_func
== NULL
? 0 : s
->server
;
2817 if (type
!= TLSEXT_NAMETYPE_host_name
)
2823 * In TLSv1.3 on the server SNI is not associated with the session
2824 * but in TLSv1.2 or below it is.
2826 * Before the handshake:
2829 * During/after the handshake (TLSv1.2 or below resumption occurred):
2830 * - If a servername was accepted by the server in the original
2831 * handshake then it will return that servername, or NULL otherwise.
2833 * During/after the handshake (TLSv1.2 or below resumption did not occur):
2834 * - The function will return the servername requested by the client in
2835 * this handshake or NULL if none was requested.
2837 if (s
->hit
&& !SSL_IS_TLS13(s
))
2838 return s
->session
->ext
.hostname
;
2843 * Before the handshake:
2844 * - If a servername has been set via a call to
2845 * SSL_set_tlsext_host_name() then it will return that servername
2846 * - If one has not been set, but a TLSv1.2 resumption is being
2847 * attempted and the session from the original handshake had a
2848 * servername accepted by the server then it will return that
2850 * - Otherwise it returns NULL
2852 * During/after the handshake (TLSv1.2 or below resumption occurred):
2853 * - If the session from the orignal handshake had a servername accepted
2854 * by the server then it will return that servername.
2855 * - Otherwise it returns the servername set via
2856 * SSL_set_tlsext_host_name() (or NULL if it was not called).
2858 * During/after the handshake (TLSv1.2 or below resumption did not occur):
2859 * - It will return the servername set via SSL_set_tlsext_host_name()
2860 * (or NULL if it was not called).
2862 if (SSL_in_before(s
)) {
2863 if (s
->ext
.hostname
== NULL
2864 && s
->session
!= NULL
2865 && s
->session
->ssl_version
!= TLS1_3_VERSION
)
2866 return s
->session
->ext
.hostname
;
2868 if (!SSL_IS_TLS13(s
) && s
->hit
&& s
->session
->ext
.hostname
!= NULL
)
2869 return s
->session
->ext
.hostname
;
2873 return s
->ext
.hostname
;
2876 int SSL_get_servername_type(const SSL
*s
)
2878 if (SSL_get_servername(s
, TLSEXT_NAMETYPE_host_name
) != NULL
)
2879 return TLSEXT_NAMETYPE_host_name
;
2884 * SSL_select_next_proto implements the standard protocol selection. It is
2885 * expected that this function is called from the callback set by
2886 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2887 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2888 * not included in the length. A byte string of length 0 is invalid. No byte
2889 * string may be truncated. The current, but experimental algorithm for
2890 * selecting the protocol is: 1) If the server doesn't support NPN then this
2891 * is indicated to the callback. In this case, the client application has to
2892 * abort the connection or have a default application level protocol. 2) If
2893 * the server supports NPN, but advertises an empty list then the client
2894 * selects the first protocol in its list, but indicates via the API that this
2895 * fallback case was enacted. 3) Otherwise, the client finds the first
2896 * protocol in the server's list that it supports and selects this protocol.
2897 * This is because it's assumed that the server has better information about
2898 * which protocol a client should use. 4) If the client doesn't support any
2899 * of the server's advertised protocols, then this is treated the same as
2900 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2901 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2903 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2904 const unsigned char *server
,
2905 unsigned int server_len
,
2906 const unsigned char *client
, unsigned int client_len
)
2909 const unsigned char *result
;
2910 int status
= OPENSSL_NPN_UNSUPPORTED
;
2913 * For each protocol in server preference order, see if we support it.
2915 for (i
= 0; i
< server_len
;) {
2916 for (j
= 0; j
< client_len
;) {
2917 if (server
[i
] == client
[j
] &&
2918 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2919 /* We found a match */
2920 result
= &server
[i
];
2921 status
= OPENSSL_NPN_NEGOTIATED
;
2931 /* There's no overlap between our protocols and the server's list. */
2933 status
= OPENSSL_NPN_NO_OVERLAP
;
2936 *out
= (unsigned char *)result
+ 1;
2937 *outlen
= result
[0];
2941 #ifndef OPENSSL_NO_NEXTPROTONEG
2943 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2944 * client's requested protocol for this connection and returns 0. If the
2945 * client didn't request any protocol, then *data is set to NULL. Note that
2946 * the client can request any protocol it chooses. The value returned from
2947 * this function need not be a member of the list of supported protocols
2948 * provided by the callback.
2950 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2954 if (*data
== NULL
) {
2957 *len
= (unsigned int)s
->ext
.npn_len
;
2962 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2963 * a TLS server needs a list of supported protocols for Next Protocol
2964 * Negotiation. The returned list must be in wire format. The list is
2965 * returned by setting |out| to point to it and |outlen| to its length. This
2966 * memory will not be modified, but one should assume that the SSL* keeps a
2967 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2968 * wishes to advertise. Otherwise, no such extension will be included in the
2971 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2972 SSL_CTX_npn_advertised_cb_func cb
,
2975 ctx
->ext
.npn_advertised_cb
= cb
;
2976 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2980 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2981 * client needs to select a protocol from the server's provided list. |out|
2982 * must be set to point to the selected protocol (which may be within |in|).
2983 * The length of the protocol name must be written into |outlen|. The
2984 * server's advertised protocols are provided in |in| and |inlen|. The
2985 * callback can assume that |in| is syntactically valid. The client must
2986 * select a protocol. It is fatal to the connection if this callback returns
2987 * a value other than SSL_TLSEXT_ERR_OK.
2989 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2990 SSL_CTX_npn_select_cb_func cb
,
2993 ctx
->ext
.npn_select_cb
= cb
;
2994 ctx
->ext
.npn_select_cb_arg
= arg
;
2999 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3000 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3001 * length-prefixed strings). Returns 0 on success.
3003 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
3004 unsigned int protos_len
)
3006 OPENSSL_free(ctx
->ext
.alpn
);
3007 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
3008 if (ctx
->ext
.alpn
== NULL
) {
3009 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
3012 ctx
->ext
.alpn_len
= protos_len
;
3018 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3019 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3020 * length-prefixed strings). Returns 0 on success.
3022 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
3023 unsigned int protos_len
)
3025 OPENSSL_free(ssl
->ext
.alpn
);
3026 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
3027 if (ssl
->ext
.alpn
== NULL
) {
3028 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
3031 ssl
->ext
.alpn_len
= protos_len
;
3037 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3038 * called during ClientHello processing in order to select an ALPN protocol
3039 * from the client's list of offered protocols.
3041 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
3042 SSL_CTX_alpn_select_cb_func cb
,
3045 ctx
->ext
.alpn_select_cb
= cb
;
3046 ctx
->ext
.alpn_select_cb_arg
= arg
;
3050 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3051 * On return it sets |*data| to point to |*len| bytes of protocol name
3052 * (not including the leading length-prefix byte). If the server didn't
3053 * respond with a negotiated protocol then |*len| will be zero.
3055 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
3058 *data
= ssl
->s3
.alpn_selected
;
3062 *len
= (unsigned int)ssl
->s3
.alpn_selected_len
;
3065 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
3066 const char *label
, size_t llen
,
3067 const unsigned char *context
, size_t contextlen
,
3070 if (s
->session
== NULL
3071 || (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
))
3074 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
3076 contextlen
, use_context
);
3079 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
3080 const char *label
, size_t llen
,
3081 const unsigned char *context
,
3084 if (s
->version
!= TLS1_3_VERSION
)
3087 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
3088 context
, contextlen
);
3091 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
3093 const unsigned char *session_id
= a
->session_id
;
3095 unsigned char tmp_storage
[4];
3097 if (a
->session_id_length
< sizeof(tmp_storage
)) {
3098 memset(tmp_storage
, 0, sizeof(tmp_storage
));
3099 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
3100 session_id
= tmp_storage
;
3104 ((unsigned long)session_id
[0]) |
3105 ((unsigned long)session_id
[1] << 8L) |
3106 ((unsigned long)session_id
[2] << 16L) |
3107 ((unsigned long)session_id
[3] << 24L);
3112 * NB: If this function (or indeed the hash function which uses a sort of
3113 * coarser function than this one) is changed, ensure
3114 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3115 * being able to construct an SSL_SESSION that will collide with any existing
3116 * session with a matching session ID.
3118 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
3120 if (a
->ssl_version
!= b
->ssl_version
)
3122 if (a
->session_id_length
!= b
->session_id_length
)
3124 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
3128 * These wrapper functions should remain rather than redeclaring
3129 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3130 * variable. The reason is that the functions aren't static, they're exposed
3134 SSL_CTX
*SSL_CTX_new_with_libctx(OPENSSL_CTX
*libctx
, const char *propq
,
3135 const SSL_METHOD
*meth
)
3137 SSL_CTX
*ret
= NULL
;
3140 SSLerr(0, SSL_R_NULL_SSL_METHOD_PASSED
);
3144 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
3147 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3148 SSLerr(0, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
3151 ret
= OPENSSL_zalloc(sizeof(*ret
));
3155 ret
->libctx
= libctx
;
3156 if (propq
!= NULL
) {
3157 ret
->propq
= OPENSSL_strdup(propq
);
3158 if (ret
->propq
== NULL
)
3163 ret
->min_proto_version
= 0;
3164 ret
->max_proto_version
= 0;
3165 ret
->mode
= SSL_MODE_AUTO_RETRY
;
3166 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
3167 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
3168 /* We take the system default. */
3169 ret
->session_timeout
= meth
->get_timeout();
3170 ret
->references
= 1;
3171 ret
->lock
= CRYPTO_THREAD_lock_new();
3172 if (ret
->lock
== NULL
) {
3173 SSLerr(0, ERR_R_MALLOC_FAILURE
);
3177 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3178 ret
->verify_mode
= SSL_VERIFY_NONE
;
3179 if ((ret
->cert
= ssl_cert_new()) == NULL
)
3182 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3183 if (ret
->sessions
== NULL
)
3185 ret
->cert_store
= X509_STORE_new();
3186 if (ret
->cert_store
== NULL
)
3188 #ifndef OPENSSL_NO_CT
3189 ret
->ctlog_store
= CTLOG_STORE_new_with_libctx(libctx
, propq
);
3190 if (ret
->ctlog_store
== NULL
)
3194 /* initialize cipher/digest methods table */
3195 if (!ssl_load_ciphers(ret
))
3197 /* initialise sig algs */
3198 if (!ssl_setup_sig_algs(ret
))
3202 if (!ssl_load_groups(ret
))
3205 if (!SSL_CTX_set_ciphersuites(ret
, OSSL_default_ciphersuites()))
3208 if (!ssl_create_cipher_list(ret
->method
,
3209 ret
->tls13_ciphersuites
,
3210 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3211 OSSL_default_cipher_list(), ret
->cert
)
3212 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3213 SSLerr(0, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3217 ret
->param
= X509_VERIFY_PARAM_new();
3218 if (ret
->param
== NULL
)
3222 * If these aren't available from the provider we'll get NULL returns.
3223 * That's fine but will cause errors later if SSLv3 is negotiated
3225 ret
->md5
= ssl_evp_md_fetch(libctx
, NID_md5
, propq
);
3226 ret
->sha1
= ssl_evp_md_fetch(libctx
, NID_sha1
, propq
);
3228 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
3231 if ((ret
->client_ca_names
= sk_X509_NAME_new_null()) == NULL
)
3234 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
3237 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
3240 /* No compression for DTLS */
3241 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3242 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3244 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3245 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3247 /* Setup RFC5077 ticket keys */
3248 if ((RAND_bytes_ex(libctx
, ret
->ext
.tick_key_name
,
3249 sizeof(ret
->ext
.tick_key_name
)) <= 0)
3250 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_hmac_key
,
3251 sizeof(ret
->ext
.secure
->tick_hmac_key
)) <= 0)
3252 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_aes_key
,
3253 sizeof(ret
->ext
.secure
->tick_aes_key
)) <= 0))
3254 ret
->options
|= SSL_OP_NO_TICKET
;
3256 if (RAND_priv_bytes_ex(libctx
, ret
->ext
.cookie_hmac_key
,
3257 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
3260 #ifndef OPENSSL_NO_SRP
3261 if (!SSL_CTX_SRP_CTX_init(ret
))
3264 #ifndef OPENSSL_NO_ENGINE
3265 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3266 # define eng_strx(x) #x
3267 # define eng_str(x) eng_strx(x)
3268 /* Use specific client engine automatically... ignore errors */
3271 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3274 ENGINE_load_builtin_engines();
3275 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3277 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3283 * Default is to connect to non-RI servers. When RI is more widely
3284 * deployed might change this.
3286 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
3288 * Disable compression by default to prevent CRIME. Applications can
3289 * re-enable compression by configuring
3290 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3291 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3292 * middlebox compatibility by default. This may be disabled by default in
3293 * a later OpenSSL version.
3295 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3297 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3300 * We cannot usefully set a default max_early_data here (which gets
3301 * propagated in SSL_new(), for the following reason: setting the
3302 * SSL field causes tls_construct_stoc_early_data() to tell the
3303 * client that early data will be accepted when constructing a TLS 1.3
3304 * session ticket, and the client will accordingly send us early data
3305 * when using that ticket (if the client has early data to send).
3306 * However, in order for the early data to actually be consumed by
3307 * the application, the application must also have calls to
3308 * SSL_read_early_data(); otherwise we'll just skip past the early data
3309 * and ignore it. So, since the application must add calls to
3310 * SSL_read_early_data(), we also require them to add
3311 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3312 * eliminating the bandwidth-wasting early data in the case described
3315 ret
->max_early_data
= 0;
3318 * Default recv_max_early_data is a fully loaded single record. Could be
3319 * split across multiple records in practice. We set this differently to
3320 * max_early_data so that, in the default case, we do not advertise any
3321 * support for early_data, but if a client were to send us some (e.g.
3322 * because of an old, stale ticket) then we will tolerate it and skip over
3325 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3327 /* By default we send two session tickets automatically in TLSv1.3 */
3328 ret
->num_tickets
= 2;
3330 ssl_ctx_system_config(ret
);
3334 SSLerr(0, ERR_R_MALLOC_FAILURE
);
3340 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
3342 return SSL_CTX_new_with_libctx(NULL
, NULL
, meth
);
3345 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3349 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3352 REF_PRINT_COUNT("SSL_CTX", ctx
);
3353 REF_ASSERT_ISNT(i
< 2);
3354 return ((i
> 1) ? 1 : 0);
3357 void SSL_CTX_free(SSL_CTX
*a
)
3365 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3366 REF_PRINT_COUNT("SSL_CTX", a
);
3369 REF_ASSERT_ISNT(i
< 0);
3371 X509_VERIFY_PARAM_free(a
->param
);
3372 dane_ctx_final(&a
->dane
);
3375 * Free internal session cache. However: the remove_cb() may reference
3376 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3377 * after the sessions were flushed.
3378 * As the ex_data handling routines might also touch the session cache,
3379 * the most secure solution seems to be: empty (flush) the cache, then
3380 * free ex_data, then finally free the cache.
3381 * (See ticket [openssl.org #212].)
3383 if (a
->sessions
!= NULL
)
3384 SSL_CTX_flush_sessions(a
, 0);
3386 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3387 lh_SSL_SESSION_free(a
->sessions
);
3388 X509_STORE_free(a
->cert_store
);
3389 #ifndef OPENSSL_NO_CT
3390 CTLOG_STORE_free(a
->ctlog_store
);
3392 sk_SSL_CIPHER_free(a
->cipher_list
);
3393 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3394 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3395 ssl_cert_free(a
->cert
);
3396 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3397 sk_X509_NAME_pop_free(a
->client_ca_names
, X509_NAME_free
);
3398 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3399 a
->comp_methods
= NULL
;
3400 #ifndef OPENSSL_NO_SRTP
3401 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3403 #ifndef OPENSSL_NO_SRP
3404 SSL_CTX_SRP_CTX_free(a
);
3406 #ifndef OPENSSL_NO_ENGINE
3407 ENGINE_finish(a
->client_cert_engine
);
3410 #ifndef OPENSSL_NO_EC
3411 OPENSSL_free(a
->ext
.ecpointformats
);
3413 OPENSSL_free(a
->ext
.supportedgroups
);
3414 OPENSSL_free(a
->ext
.alpn
);
3415 OPENSSL_secure_free(a
->ext
.secure
);
3417 ssl_evp_md_free(a
->md5
);
3418 ssl_evp_md_free(a
->sha1
);
3420 for (j
= 0; j
< SSL_ENC_NUM_IDX
; j
++)
3421 ssl_evp_cipher_free(a
->ssl_cipher_methods
[j
]);
3422 for (j
= 0; j
< SSL_MD_NUM_IDX
; j
++)
3423 ssl_evp_md_free(a
->ssl_digest_methods
[j
]);
3424 for (j
= 0; j
< a
->group_list_len
; j
++) {
3425 OPENSSL_free(a
->group_list
[j
].tlsname
);
3426 OPENSSL_free(a
->group_list
[j
].realname
);
3427 OPENSSL_free(a
->group_list
[j
].algorithm
);
3429 OPENSSL_free(a
->group_list
);
3431 OPENSSL_free(a
->sigalg_lookup_cache
);
3433 CRYPTO_THREAD_lock_free(a
->lock
);
3435 OPENSSL_free(a
->propq
);
3440 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3442 ctx
->default_passwd_callback
= cb
;
3445 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3447 ctx
->default_passwd_callback_userdata
= u
;
3450 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3452 return ctx
->default_passwd_callback
;
3455 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3457 return ctx
->default_passwd_callback_userdata
;
3460 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3462 s
->default_passwd_callback
= cb
;
3465 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3467 s
->default_passwd_callback_userdata
= u
;
3470 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3472 return s
->default_passwd_callback
;
3475 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3477 return s
->default_passwd_callback_userdata
;
3480 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3481 int (*cb
) (X509_STORE_CTX
*, void *),
3484 ctx
->app_verify_callback
= cb
;
3485 ctx
->app_verify_arg
= arg
;
3488 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3489 int (*cb
) (int, X509_STORE_CTX
*))
3491 ctx
->verify_mode
= mode
;
3492 ctx
->default_verify_callback
= cb
;
3495 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3497 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3500 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3502 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3505 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3507 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3510 void ssl_set_masks(SSL
*s
)
3513 uint32_t *pvalid
= s
->s3
.tmp
.valid_flags
;
3514 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3515 unsigned long mask_k
, mask_a
;
3516 #ifndef OPENSSL_NO_EC
3517 int have_ecc_cert
, ecdsa_ok
;
3522 #ifndef OPENSSL_NO_DH
3523 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3528 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3529 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3530 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3531 #ifndef OPENSSL_NO_EC
3532 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3537 OSSL_TRACE4(TLS_CIPHER
, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
3538 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3540 #ifndef OPENSSL_NO_GOST
3541 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3542 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
3543 mask_a
|= SSL_aGOST12
;
3545 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3546 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
3547 mask_a
|= SSL_aGOST12
;
3549 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3550 mask_k
|= SSL_kGOST
;
3551 mask_a
|= SSL_aGOST01
;
3562 * If we only have an RSA-PSS certificate allow RSA authentication
3563 * if TLS 1.2 and peer supports it.
3566 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3567 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3568 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3575 mask_a
|= SSL_aNULL
;
3578 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3579 * depending on the key usage extension.
3581 #ifndef OPENSSL_NO_EC
3582 if (have_ecc_cert
) {
3584 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3585 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3586 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3589 mask_a
|= SSL_aECDSA
;
3591 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3592 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3593 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3594 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3595 mask_a
|= SSL_aECDSA
;
3597 /* Allow Ed448 for TLS 1.2 if peer supports it */
3598 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
3599 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
3600 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3601 mask_a
|= SSL_aECDSA
;
3604 #ifndef OPENSSL_NO_EC
3605 mask_k
|= SSL_kECDHE
;
3608 #ifndef OPENSSL_NO_PSK
3611 if (mask_k
& SSL_kRSA
)
3612 mask_k
|= SSL_kRSAPSK
;
3613 if (mask_k
& SSL_kDHE
)
3614 mask_k
|= SSL_kDHEPSK
;
3615 if (mask_k
& SSL_kECDHE
)
3616 mask_k
|= SSL_kECDHEPSK
;
3619 s
->s3
.tmp
.mask_k
= mask_k
;
3620 s
->s3
.tmp
.mask_a
= mask_a
;
3623 #ifndef OPENSSL_NO_EC
3625 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3627 if (s
->s3
.tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3628 /* key usage, if present, must allow signing */
3629 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3630 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3631 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3635 return 1; /* all checks are ok */
3640 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3641 size_t *serverinfo_length
)
3643 CERT_PKEY
*cpk
= s
->s3
.tmp
.cert
;
3644 *serverinfo_length
= 0;
3646 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3649 *serverinfo
= cpk
->serverinfo
;
3650 *serverinfo_length
= cpk
->serverinfo_length
;
3654 void ssl_update_cache(SSL
*s
, int mode
)
3659 * If the session_id_length is 0, we are not supposed to cache it, and it
3660 * would be rather hard to do anyway :-)
3662 if (s
->session
->session_id_length
== 0)
3666 * If sid_ctx_length is 0 there is no specific application context
3667 * associated with this session, so when we try to resume it and
3668 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3669 * indication that this is actually a session for the proper application
3670 * context, and the *handshake* will fail, not just the resumption attempt.
3671 * Do not cache (on the server) these sessions that are not resumable
3672 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3674 if (s
->server
&& s
->session
->sid_ctx_length
== 0
3675 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
3678 i
= s
->session_ctx
->session_cache_mode
;
3680 && (!s
->hit
|| SSL_IS_TLS13(s
))) {
3682 * Add the session to the internal cache. In server side TLSv1.3 we
3683 * normally don't do this because by default it's a full stateless ticket
3684 * with only a dummy session id so there is no reason to cache it,
3686 * - we are doing early_data, in which case we cache so that we can
3688 * - the application has set a remove_session_cb so needs to know about
3689 * session timeout events
3690 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3692 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
3693 && (!SSL_IS_TLS13(s
)
3695 || (s
->max_early_data
> 0
3696 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
3697 || s
->session_ctx
->remove_session_cb
!= NULL
3698 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
3699 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
3702 * Add the session to the external cache. We do this even in server side
3703 * TLSv1.3 without early data because some applications just want to
3704 * know about the creation of a session and aren't doing a full cache.
3706 if (s
->session_ctx
->new_session_cb
!= NULL
) {
3707 SSL_SESSION_up_ref(s
->session
);
3708 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3709 SSL_SESSION_free(s
->session
);
3713 /* auto flush every 255 connections */
3714 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3715 TSAN_QUALIFIER
int *stat
;
3716 if (mode
& SSL_SESS_CACHE_CLIENT
)
3717 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3719 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3720 if ((tsan_load(stat
) & 0xff) == 0xff)
3721 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3725 const SSL_METHOD
*SSL_CTX_get_ssl_method(const SSL_CTX
*ctx
)
3730 const SSL_METHOD
*SSL_get_ssl_method(const SSL
*s
)
3735 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3739 if (s
->method
!= meth
) {
3740 const SSL_METHOD
*sm
= s
->method
;
3741 int (*hf
) (SSL
*) = s
->handshake_func
;
3743 if (sm
->version
== meth
->version
)
3748 ret
= s
->method
->ssl_new(s
);
3751 if (hf
== sm
->ssl_connect
)
3752 s
->handshake_func
= meth
->ssl_connect
;
3753 else if (hf
== sm
->ssl_accept
)
3754 s
->handshake_func
= meth
->ssl_accept
;
3759 int SSL_get_error(const SSL
*s
, int i
)
3766 return SSL_ERROR_NONE
;
3769 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3770 * where we do encode the error
3772 if ((l
= ERR_peek_error()) != 0) {
3773 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3774 return SSL_ERROR_SYSCALL
;
3776 return SSL_ERROR_SSL
;
3779 if (SSL_want_read(s
)) {
3780 bio
= SSL_get_rbio(s
);
3781 if (BIO_should_read(bio
))
3782 return SSL_ERROR_WANT_READ
;
3783 else if (BIO_should_write(bio
))
3785 * This one doesn't make too much sense ... We never try to write
3786 * to the rbio, and an application program where rbio and wbio
3787 * are separate couldn't even know what it should wait for.
3788 * However if we ever set s->rwstate incorrectly (so that we have
3789 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3790 * wbio *are* the same, this test works around that bug; so it
3791 * might be safer to keep it.
3793 return SSL_ERROR_WANT_WRITE
;
3794 else if (BIO_should_io_special(bio
)) {
3795 reason
= BIO_get_retry_reason(bio
);
3796 if (reason
== BIO_RR_CONNECT
)
3797 return SSL_ERROR_WANT_CONNECT
;
3798 else if (reason
== BIO_RR_ACCEPT
)
3799 return SSL_ERROR_WANT_ACCEPT
;
3801 return SSL_ERROR_SYSCALL
; /* unknown */
3805 if (SSL_want_write(s
)) {
3806 /* Access wbio directly - in order to use the buffered bio if present */
3808 if (BIO_should_write(bio
))
3809 return SSL_ERROR_WANT_WRITE
;
3810 else if (BIO_should_read(bio
))
3812 * See above (SSL_want_read(s) with BIO_should_write(bio))
3814 return SSL_ERROR_WANT_READ
;
3815 else if (BIO_should_io_special(bio
)) {
3816 reason
= BIO_get_retry_reason(bio
);
3817 if (reason
== BIO_RR_CONNECT
)
3818 return SSL_ERROR_WANT_CONNECT
;
3819 else if (reason
== BIO_RR_ACCEPT
)
3820 return SSL_ERROR_WANT_ACCEPT
;
3822 return SSL_ERROR_SYSCALL
;
3825 if (SSL_want_x509_lookup(s
))
3826 return SSL_ERROR_WANT_X509_LOOKUP
;
3827 if (SSL_want_async(s
))
3828 return SSL_ERROR_WANT_ASYNC
;
3829 if (SSL_want_async_job(s
))
3830 return SSL_ERROR_WANT_ASYNC_JOB
;
3831 if (SSL_want_client_hello_cb(s
))
3832 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3834 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3835 (s
->s3
.warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3836 return SSL_ERROR_ZERO_RETURN
;
3838 return SSL_ERROR_SYSCALL
;
3841 static int ssl_do_handshake_intern(void *vargs
)
3843 struct ssl_async_args
*args
;
3846 args
= (struct ssl_async_args
*)vargs
;
3849 return s
->handshake_func(s
);
3852 int SSL_do_handshake(SSL
*s
)
3856 if (s
->handshake_func
== NULL
) {
3857 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3861 ossl_statem_check_finish_init(s
, -1);
3863 s
->method
->ssl_renegotiate_check(s
, 0);
3865 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3866 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3867 struct ssl_async_args args
;
3871 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3873 ret
= s
->handshake_func(s
);
3879 void SSL_set_accept_state(SSL
*s
)
3883 ossl_statem_clear(s
);
3884 s
->handshake_func
= s
->method
->ssl_accept
;
3888 void SSL_set_connect_state(SSL
*s
)
3892 ossl_statem_clear(s
);
3893 s
->handshake_func
= s
->method
->ssl_connect
;
3897 int ssl_undefined_function(SSL
*s
)
3899 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3903 int ssl_undefined_void_function(void)
3905 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3906 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3910 int ssl_undefined_const_function(const SSL
*s
)
3915 const SSL_METHOD
*ssl_bad_method(int ver
)
3917 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3921 const char *ssl_protocol_to_string(int version
)
3925 case TLS1_3_VERSION
:
3928 case TLS1_2_VERSION
:
3931 case TLS1_1_VERSION
:
3946 case DTLS1_2_VERSION
:
3954 const char *SSL_get_version(const SSL
*s
)
3956 return ssl_protocol_to_string(s
->version
);
3959 static int dup_ca_names(STACK_OF(X509_NAME
) **dst
, STACK_OF(X509_NAME
) *src
)
3961 STACK_OF(X509_NAME
) *sk
;
3970 if ((sk
= sk_X509_NAME_new_null()) == NULL
)
3972 for (i
= 0; i
< sk_X509_NAME_num(src
); i
++) {
3973 xn
= X509_NAME_dup(sk_X509_NAME_value(src
, i
));
3975 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
3978 if (sk_X509_NAME_insert(sk
, xn
, i
) == 0) {
3980 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
3989 SSL
*SSL_dup(SSL
*s
)
3994 /* If we're not quiescent, just up_ref! */
3995 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3996 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
4001 * Otherwise, copy configuration state, and session if set.
4003 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
4006 if (s
->session
!= NULL
) {
4008 * Arranges to share the same session via up_ref. This "copies"
4009 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4011 if (!SSL_copy_session_id(ret
, s
))
4015 * No session has been established yet, so we have to expect that
4016 * s->cert or ret->cert will be changed later -- they should not both
4017 * point to the same object, and thus we can't use
4018 * SSL_copy_session_id.
4020 if (!SSL_set_ssl_method(ret
, s
->method
))
4023 if (s
->cert
!= NULL
) {
4024 ssl_cert_free(ret
->cert
);
4025 ret
->cert
= ssl_cert_dup(s
->cert
);
4026 if (ret
->cert
== NULL
)
4030 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
4031 (int)s
->sid_ctx_length
))
4035 if (!ssl_dane_dup(ret
, s
))
4037 ret
->version
= s
->version
;
4038 ret
->options
= s
->options
;
4039 ret
->min_proto_version
= s
->min_proto_version
;
4040 ret
->max_proto_version
= s
->max_proto_version
;
4041 ret
->mode
= s
->mode
;
4042 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
4043 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
4044 ret
->msg_callback
= s
->msg_callback
;
4045 ret
->msg_callback_arg
= s
->msg_callback_arg
;
4046 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
4047 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
4048 ret
->generate_session_id
= s
->generate_session_id
;
4050 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
4052 /* copy app data, a little dangerous perhaps */
4053 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
4056 ret
->server
= s
->server
;
4057 if (s
->handshake_func
) {
4059 SSL_set_accept_state(ret
);
4061 SSL_set_connect_state(ret
);
4063 ret
->shutdown
= s
->shutdown
;
4066 ret
->default_passwd_callback
= s
->default_passwd_callback
;
4067 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
4069 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
4071 /* dup the cipher_list and cipher_list_by_id stacks */
4072 if (s
->cipher_list
!= NULL
) {
4073 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
4076 if (s
->cipher_list_by_id
!= NULL
)
4077 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
4081 /* Dup the client_CA list */
4082 if (!dup_ca_names(&ret
->ca_names
, s
->ca_names
)
4083 || !dup_ca_names(&ret
->client_ca_names
, s
->client_ca_names
))
4093 void ssl_clear_cipher_ctx(SSL
*s
)
4095 if (s
->enc_read_ctx
!= NULL
) {
4096 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
4097 s
->enc_read_ctx
= NULL
;
4099 if (s
->enc_write_ctx
!= NULL
) {
4100 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
4101 s
->enc_write_ctx
= NULL
;
4103 #ifndef OPENSSL_NO_COMP
4104 COMP_CTX_free(s
->expand
);
4106 COMP_CTX_free(s
->compress
);
4111 X509
*SSL_get_certificate(const SSL
*s
)
4113 if (s
->cert
!= NULL
)
4114 return s
->cert
->key
->x509
;
4119 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
4121 if (s
->cert
!= NULL
)
4122 return s
->cert
->key
->privatekey
;
4127 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
4129 if (ctx
->cert
!= NULL
)
4130 return ctx
->cert
->key
->x509
;
4135 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
4137 if (ctx
->cert
!= NULL
)
4138 return ctx
->cert
->key
->privatekey
;
4143 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
4145 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
4146 return s
->session
->cipher
;
4150 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
4152 return s
->s3
.tmp
.new_cipher
;
4155 const COMP_METHOD
*SSL_get_current_compression(const SSL
*s
)
4157 #ifndef OPENSSL_NO_COMP
4158 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
4164 const COMP_METHOD
*SSL_get_current_expansion(const SSL
*s
)
4166 #ifndef OPENSSL_NO_COMP
4167 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
4173 int ssl_init_wbio_buffer(SSL
*s
)
4177 if (s
->bbio
!= NULL
) {
4178 /* Already buffered. */
4182 bbio
= BIO_new(BIO_f_buffer());
4183 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
4185 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
4189 s
->wbio
= BIO_push(bbio
, s
->wbio
);
4194 int ssl_free_wbio_buffer(SSL
*s
)
4196 /* callers ensure s is never null */
4197 if (s
->bbio
== NULL
)
4200 s
->wbio
= BIO_pop(s
->wbio
);
4207 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
4209 ctx
->quiet_shutdown
= mode
;
4212 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
4214 return ctx
->quiet_shutdown
;
4217 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
4219 s
->quiet_shutdown
= mode
;
4222 int SSL_get_quiet_shutdown(const SSL
*s
)
4224 return s
->quiet_shutdown
;
4227 void SSL_set_shutdown(SSL
*s
, int mode
)
4232 int SSL_get_shutdown(const SSL
*s
)
4237 int SSL_version(const SSL
*s
)
4242 int SSL_client_version(const SSL
*s
)
4244 return s
->client_version
;
4247 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
4252 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
4255 if (ssl
->ctx
== ctx
)
4258 ctx
= ssl
->session_ctx
;
4259 new_cert
= ssl_cert_dup(ctx
->cert
);
4260 if (new_cert
== NULL
) {
4264 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
4265 ssl_cert_free(new_cert
);
4269 ssl_cert_free(ssl
->cert
);
4270 ssl
->cert
= new_cert
;
4273 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4274 * so setter APIs must prevent invalid lengths from entering the system.
4276 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
4280 * If the session ID context matches that of the parent SSL_CTX,
4281 * inherit it from the new SSL_CTX as well. If however the context does
4282 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4283 * leave it unchanged.
4285 if ((ssl
->ctx
!= NULL
) &&
4286 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
4287 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
4288 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
4289 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
4292 SSL_CTX_up_ref(ctx
);
4293 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
4299 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
4301 return X509_STORE_set_default_paths_with_libctx(ctx
->cert_store
,
4302 ctx
->libctx
, ctx
->propq
);
4305 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
4307 X509_LOOKUP
*lookup
;
4309 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4313 /* We ignore errors, in case the directory doesn't exist */
4316 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4323 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4325 X509_LOOKUP
*lookup
;
4327 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4331 /* We ignore errors, in case the directory doesn't exist */
4334 X509_LOOKUP_load_file_with_libctx(lookup
, NULL
, X509_FILETYPE_DEFAULT
,
4335 ctx
->libctx
, ctx
->propq
);
4342 int SSL_CTX_set_default_verify_store(SSL_CTX
*ctx
)
4344 X509_LOOKUP
*lookup
;
4346 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_store());
4350 /* We ignore errors, in case the directory doesn't exist */
4353 X509_LOOKUP_add_store_with_libctx(lookup
, NULL
, ctx
->libctx
, ctx
->propq
);
4360 int SSL_CTX_load_verify_file(SSL_CTX
*ctx
, const char *CAfile
)
4362 return X509_STORE_load_file_with_libctx(ctx
->cert_store
, CAfile
,
4363 ctx
->libctx
, ctx
->propq
);
4366 int SSL_CTX_load_verify_dir(SSL_CTX
*ctx
, const char *CApath
)
4368 return X509_STORE_load_path(ctx
->cert_store
, CApath
);
4371 int SSL_CTX_load_verify_store(SSL_CTX
*ctx
, const char *CAstore
)
4373 return X509_STORE_load_store_with_libctx(ctx
->cert_store
, CAstore
,
4374 ctx
->libctx
, ctx
->propq
);
4377 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
4380 if (CAfile
== NULL
&& CApath
== NULL
)
4382 if (CAfile
!= NULL
&& !SSL_CTX_load_verify_file(ctx
, CAfile
))
4384 if (CApath
!= NULL
&& !SSL_CTX_load_verify_dir(ctx
, CApath
))
4389 void SSL_set_info_callback(SSL
*ssl
,
4390 void (*cb
) (const SSL
*ssl
, int type
, int val
))
4392 ssl
->info_callback
= cb
;
4396 * One compiler (Diab DCC) doesn't like argument names in returned function
4399 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
4402 return ssl
->info_callback
;
4405 void SSL_set_verify_result(SSL
*ssl
, long arg
)
4407 ssl
->verify_result
= arg
;
4410 long SSL_get_verify_result(const SSL
*ssl
)
4412 return ssl
->verify_result
;
4415 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4418 return sizeof(ssl
->s3
.client_random
);
4419 if (outlen
> sizeof(ssl
->s3
.client_random
))
4420 outlen
= sizeof(ssl
->s3
.client_random
);
4421 memcpy(out
, ssl
->s3
.client_random
, outlen
);
4425 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4428 return sizeof(ssl
->s3
.server_random
);
4429 if (outlen
> sizeof(ssl
->s3
.server_random
))
4430 outlen
= sizeof(ssl
->s3
.server_random
);
4431 memcpy(out
, ssl
->s3
.server_random
, outlen
);
4435 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4436 unsigned char *out
, size_t outlen
)
4439 return session
->master_key_length
;
4440 if (outlen
> session
->master_key_length
)
4441 outlen
= session
->master_key_length
;
4442 memcpy(out
, session
->master_key
, outlen
);
4446 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4449 if (len
> sizeof(sess
->master_key
))
4452 memcpy(sess
->master_key
, in
, len
);
4453 sess
->master_key_length
= len
;
4458 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4460 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4463 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4465 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4468 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4470 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4473 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4475 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4478 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4480 return ctx
->cert_store
;
4483 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4485 X509_STORE_free(ctx
->cert_store
);
4486 ctx
->cert_store
= store
;
4489 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4492 X509_STORE_up_ref(store
);
4493 SSL_CTX_set_cert_store(ctx
, store
);
4496 int SSL_want(const SSL
*s
)
4502 * \brief Set the callback for generating temporary DH keys.
4503 * \param ctx the SSL context.
4504 * \param dh the callback
4507 #ifndef OPENSSL_NO_DH
4508 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4509 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4512 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4515 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4518 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4522 #ifndef OPENSSL_NO_PSK
4523 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4525 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4526 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4529 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4530 if (identity_hint
!= NULL
) {
4531 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4532 if (ctx
->cert
->psk_identity_hint
== NULL
)
4535 ctx
->cert
->psk_identity_hint
= NULL
;
4539 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4544 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4545 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4548 OPENSSL_free(s
->cert
->psk_identity_hint
);
4549 if (identity_hint
!= NULL
) {
4550 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4551 if (s
->cert
->psk_identity_hint
== NULL
)
4554 s
->cert
->psk_identity_hint
= NULL
;
4558 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4560 if (s
== NULL
|| s
->session
== NULL
)
4562 return s
->session
->psk_identity_hint
;
4565 const char *SSL_get_psk_identity(const SSL
*s
)
4567 if (s
== NULL
|| s
->session
== NULL
)
4569 return s
->session
->psk_identity
;
4572 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4574 s
->psk_client_callback
= cb
;
4577 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4579 ctx
->psk_client_callback
= cb
;
4582 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4584 s
->psk_server_callback
= cb
;
4587 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4589 ctx
->psk_server_callback
= cb
;
4593 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4595 s
->psk_find_session_cb
= cb
;
4598 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4599 SSL_psk_find_session_cb_func cb
)
4601 ctx
->psk_find_session_cb
= cb
;
4604 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4606 s
->psk_use_session_cb
= cb
;
4609 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4610 SSL_psk_use_session_cb_func cb
)
4612 ctx
->psk_use_session_cb
= cb
;
4615 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4616 void (*cb
) (int write_p
, int version
,
4617 int content_type
, const void *buf
,
4618 size_t len
, SSL
*ssl
, void *arg
))
4620 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4623 void SSL_set_msg_callback(SSL
*ssl
,
4624 void (*cb
) (int write_p
, int version
,
4625 int content_type
, const void *buf
,
4626 size_t len
, SSL
*ssl
, void *arg
))
4628 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4631 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4632 int (*cb
) (SSL
*ssl
,
4636 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4637 (void (*)(void))cb
);
4640 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4641 int (*cb
) (SSL
*ssl
,
4642 int is_forward_secure
))
4644 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4645 (void (*)(void))cb
);
4648 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4649 size_t (*cb
) (SSL
*ssl
, int type
,
4650 size_t len
, void *arg
))
4652 ctx
->record_padding_cb
= cb
;
4655 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4657 ctx
->record_padding_arg
= arg
;
4660 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX
*ctx
)
4662 return ctx
->record_padding_arg
;
4665 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4667 /* block size of 0 or 1 is basically no padding */
4668 if (block_size
== 1)
4669 ctx
->block_padding
= 0;
4670 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4671 ctx
->block_padding
= block_size
;
4677 int SSL_set_record_padding_callback(SSL
*ssl
,
4678 size_t (*cb
) (SSL
*ssl
, int type
,
4679 size_t len
, void *arg
))
4683 b
= SSL_get_wbio(ssl
);
4684 if (b
== NULL
|| !BIO_get_ktls_send(b
)) {
4685 ssl
->record_padding_cb
= cb
;
4691 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4693 ssl
->record_padding_arg
= arg
;
4696 void *SSL_get_record_padding_callback_arg(const SSL
*ssl
)
4698 return ssl
->record_padding_arg
;
4701 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4703 /* block size of 0 or 1 is basically no padding */
4704 if (block_size
== 1)
4705 ssl
->block_padding
= 0;
4706 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4707 ssl
->block_padding
= block_size
;
4713 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
4715 s
->num_tickets
= num_tickets
;
4720 size_t SSL_get_num_tickets(const SSL
*s
)
4722 return s
->num_tickets
;
4725 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
4727 ctx
->num_tickets
= num_tickets
;
4732 size_t SSL_CTX_get_num_tickets(const SSL_CTX
*ctx
)
4734 return ctx
->num_tickets
;
4738 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4739 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4740 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4741 * Returns the newly allocated ctx;
4744 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4746 ssl_clear_hash_ctx(hash
);
4747 *hash
= EVP_MD_CTX_new();
4748 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4749 EVP_MD_CTX_free(*hash
);
4756 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4759 EVP_MD_CTX_free(*hash
);
4763 /* Retrieve handshake hashes */
4764 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4767 EVP_MD_CTX
*ctx
= NULL
;
4768 EVP_MD_CTX
*hdgst
= s
->s3
.handshake_dgst
;
4769 int hashleni
= EVP_MD_CTX_size(hdgst
);
4772 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4773 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4774 ERR_R_INTERNAL_ERROR
);
4778 ctx
= EVP_MD_CTX_new();
4782 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4783 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4784 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4785 ERR_R_INTERNAL_ERROR
);
4789 *hashlen
= hashleni
;
4793 EVP_MD_CTX_free(ctx
);
4797 int SSL_session_reused(const SSL
*s
)
4802 int SSL_is_server(const SSL
*s
)
4807 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
4808 void SSL_set_debug(SSL
*s
, int debug
)
4810 /* Old function was do-nothing anyway... */
4816 void SSL_set_security_level(SSL
*s
, int level
)
4818 s
->cert
->sec_level
= level
;
4821 int SSL_get_security_level(const SSL
*s
)
4823 return s
->cert
->sec_level
;
4826 void SSL_set_security_callback(SSL
*s
,
4827 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4828 int op
, int bits
, int nid
,
4829 void *other
, void *ex
))
4831 s
->cert
->sec_cb
= cb
;
4834 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4835 const SSL_CTX
*ctx
, int op
,
4836 int bits
, int nid
, void *other
,
4838 return s
->cert
->sec_cb
;
4841 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4843 s
->cert
->sec_ex
= ex
;
4846 void *SSL_get0_security_ex_data(const SSL
*s
)
4848 return s
->cert
->sec_ex
;
4851 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4853 ctx
->cert
->sec_level
= level
;
4856 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4858 return ctx
->cert
->sec_level
;
4861 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4862 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4863 int op
, int bits
, int nid
,
4864 void *other
, void *ex
))
4866 ctx
->cert
->sec_cb
= cb
;
4869 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4875 return ctx
->cert
->sec_cb
;
4878 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4880 ctx
->cert
->sec_ex
= ex
;
4883 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4885 return ctx
->cert
->sec_ex
;
4889 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4890 * can return unsigned long, instead of the generic long return value from the
4891 * control interface.
4893 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4895 return ctx
->options
;
4898 unsigned long SSL_get_options(const SSL
*s
)
4903 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4905 return ctx
->options
|= op
;
4908 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4910 return s
->options
|= op
;
4913 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4915 return ctx
->options
&= ~op
;
4918 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4920 return s
->options
&= ~op
;
4923 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4925 return s
->verified_chain
;
4928 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4930 #ifndef OPENSSL_NO_CT
4933 * Moves SCTs from the |src| stack to the |dst| stack.
4934 * The source of each SCT will be set to |origin|.
4935 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4937 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4939 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4940 sct_source_t origin
)
4946 *dst
= sk_SCT_new_null();
4948 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4953 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4954 if (SCT_set_source(sct
, origin
) != 1)
4957 if (sk_SCT_push(*dst
, sct
) <= 0)
4965 sk_SCT_push(src
, sct
); /* Put the SCT back */
4970 * Look for data collected during ServerHello and parse if found.
4971 * Returns the number of SCTs extracted.
4973 static int ct_extract_tls_extension_scts(SSL
*s
)
4975 int scts_extracted
= 0;
4977 if (s
->ext
.scts
!= NULL
) {
4978 const unsigned char *p
= s
->ext
.scts
;
4979 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4981 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4983 SCT_LIST_free(scts
);
4986 return scts_extracted
;
4990 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4991 * contains an SCT X509 extension. They will be stored in |s->scts|.
4993 * - The number of SCTs extracted, assuming an OCSP response exists.
4994 * - 0 if no OCSP response exists or it contains no SCTs.
4995 * - A negative integer if an error occurs.
4997 static int ct_extract_ocsp_response_scts(SSL
*s
)
4999 # ifndef OPENSSL_NO_OCSP
5000 int scts_extracted
= 0;
5001 const unsigned char *p
;
5002 OCSP_BASICRESP
*br
= NULL
;
5003 OCSP_RESPONSE
*rsp
= NULL
;
5004 STACK_OF(SCT
) *scts
= NULL
;
5007 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
5010 p
= s
->ext
.ocsp
.resp
;
5011 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
5015 br
= OCSP_response_get1_basic(rsp
);
5019 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
5020 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
5026 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
5028 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
5029 if (scts_extracted
< 0)
5033 SCT_LIST_free(scts
);
5034 OCSP_BASICRESP_free(br
);
5035 OCSP_RESPONSE_free(rsp
);
5036 return scts_extracted
;
5038 /* Behave as if no OCSP response exists */
5044 * Attempts to extract SCTs from the peer certificate.
5045 * Return the number of SCTs extracted, or a negative integer if an error
5048 static int ct_extract_x509v3_extension_scts(SSL
*s
)
5050 int scts_extracted
= 0;
5051 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5054 STACK_OF(SCT
) *scts
=
5055 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
5058 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
5060 SCT_LIST_free(scts
);
5063 return scts_extracted
;
5067 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
5068 * response (if it exists) and X509v3 extensions in the certificate.
5069 * Returns NULL if an error occurs.
5071 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
5073 if (!s
->scts_parsed
) {
5074 if (ct_extract_tls_extension_scts(s
) < 0 ||
5075 ct_extract_ocsp_response_scts(s
) < 0 ||
5076 ct_extract_x509v3_extension_scts(s
) < 0)
5086 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
5087 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5092 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
5093 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5095 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
5098 for (i
= 0; i
< count
; ++i
) {
5099 SCT
*sct
= sk_SCT_value(scts
, i
);
5100 int status
= SCT_get_validation_status(sct
);
5102 if (status
== SCT_VALIDATION_STATUS_VALID
)
5105 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
5109 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
5113 * Since code exists that uses the custom extension handler for CT, look
5114 * for this and throw an error if they have already registered to use CT.
5116 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
5117 TLSEXT_TYPE_signed_certificate_timestamp
))
5119 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
5120 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5124 if (callback
!= NULL
) {
5126 * If we are validating CT, then we MUST accept SCTs served via OCSP
5128 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
5132 s
->ct_validation_callback
= callback
;
5133 s
->ct_validation_callback_arg
= arg
;
5138 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
5139 ssl_ct_validation_cb callback
, void *arg
)
5142 * Since code exists that uses the custom extension handler for CT, look for
5143 * this and throw an error if they have already registered to use CT.
5145 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
5146 TLSEXT_TYPE_signed_certificate_timestamp
))
5148 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
5149 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5153 ctx
->ct_validation_callback
= callback
;
5154 ctx
->ct_validation_callback_arg
= arg
;
5158 int SSL_ct_is_enabled(const SSL
*s
)
5160 return s
->ct_validation_callback
!= NULL
;
5163 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
5165 return ctx
->ct_validation_callback
!= NULL
;
5168 int ssl_validate_ct(SSL
*s
)
5171 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5173 SSL_DANE
*dane
= &s
->dane
;
5174 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
5175 const STACK_OF(SCT
) *scts
;
5178 * If no callback is set, the peer is anonymous, or its chain is invalid,
5179 * skip SCT validation - just return success. Applications that continue
5180 * handshakes without certificates, with unverified chains, or pinned leaf
5181 * certificates are outside the scope of the WebPKI and CT.
5183 * The above exclusions notwithstanding the vast majority of peers will
5184 * have rather ordinary certificate chains validated by typical
5185 * applications that perform certificate verification and therefore will
5186 * process SCTs when enabled.
5188 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
5189 s
->verify_result
!= X509_V_OK
||
5190 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
5194 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
5195 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
5197 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
5198 switch (dane
->mtlsa
->usage
) {
5199 case DANETLS_USAGE_DANE_TA
:
5200 case DANETLS_USAGE_DANE_EE
:
5205 ctx
= CT_POLICY_EVAL_CTX_new_with_libctx(s
->ctx
->libctx
, s
->ctx
->propq
);
5207 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
5208 ERR_R_MALLOC_FAILURE
);
5212 issuer
= sk_X509_value(s
->verified_chain
, 1);
5213 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
5214 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
5215 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
5216 CT_POLICY_EVAL_CTX_set_time(
5217 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
5219 scts
= SSL_get0_peer_scts(s
);
5222 * This function returns success (> 0) only when all the SCTs are valid, 0
5223 * when some are invalid, and < 0 on various internal errors (out of
5224 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
5225 * reason to abort the handshake, that decision is up to the callback.
5226 * Therefore, we error out only in the unexpected case that the return
5227 * value is negative.
5229 * XXX: One might well argue that the return value of this function is an
5230 * unfortunate design choice. Its job is only to determine the validation
5231 * status of each of the provided SCTs. So long as it correctly separates
5232 * the wheat from the chaff it should return success. Failure in this case
5233 * ought to correspond to an inability to carry out its duties.
5235 if (SCT_LIST_validate(scts
, ctx
) < 0) {
5236 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
5237 SSL_R_SCT_VERIFICATION_FAILED
);
5241 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
5243 ret
= 0; /* This function returns 0 on failure */
5245 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
5246 SSL_R_CALLBACK_FAILED
);
5249 CT_POLICY_EVAL_CTX_free(ctx
);
5251 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
5252 * failure return code here. Also the application may wish the complete
5253 * the handshake, and then disconnect cleanly at a higher layer, after
5254 * checking the verification status of the completed connection.
5256 * We therefore force a certificate verification failure which will be
5257 * visible via SSL_get_verify_result() and cached as part of any resumed
5260 * Note: the permissive callback is for information gathering only, always
5261 * returns success, and does not affect verification status. Only the
5262 * strict callback or a custom application-specified callback can trigger
5263 * connection failure or record a verification error.
5266 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
5270 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
5272 switch (validation_mode
) {
5274 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
5276 case SSL_CT_VALIDATION_PERMISSIVE
:
5277 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
5278 case SSL_CT_VALIDATION_STRICT
:
5279 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
5283 int SSL_enable_ct(SSL
*s
, int validation_mode
)
5285 switch (validation_mode
) {
5287 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
5289 case SSL_CT_VALIDATION_PERMISSIVE
:
5290 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
5291 case SSL_CT_VALIDATION_STRICT
:
5292 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
5296 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
5298 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
5301 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
5303 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
5306 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
5308 CTLOG_STORE_free(ctx
->ctlog_store
);
5309 ctx
->ctlog_store
= logs
;
5312 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
5314 return ctx
->ctlog_store
;
5317 #endif /* OPENSSL_NO_CT */
5319 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
5322 c
->client_hello_cb
= cb
;
5323 c
->client_hello_cb_arg
= arg
;
5326 int SSL_client_hello_isv2(SSL
*s
)
5328 if (s
->clienthello
== NULL
)
5330 return s
->clienthello
->isv2
;
5333 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
5335 if (s
->clienthello
== NULL
)
5337 return s
->clienthello
->legacy_version
;
5340 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
5342 if (s
->clienthello
== NULL
)
5345 *out
= s
->clienthello
->random
;
5346 return SSL3_RANDOM_SIZE
;
5349 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
5351 if (s
->clienthello
== NULL
)
5354 *out
= s
->clienthello
->session_id
;
5355 return s
->clienthello
->session_id_len
;
5358 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
5360 if (s
->clienthello
== NULL
)
5363 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
5364 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
5367 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
5369 if (s
->clienthello
== NULL
)
5372 *out
= s
->clienthello
->compressions
;
5373 return s
->clienthello
->compressions_len
;
5376 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
5382 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
5384 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5385 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5394 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
5395 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT
,
5396 ERR_R_MALLOC_FAILURE
);
5399 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5400 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5402 if (ext
->received_order
>= num
)
5404 present
[ext
->received_order
] = ext
->type
;
5411 OPENSSL_free(present
);
5415 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
5421 if (s
->clienthello
== NULL
)
5423 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
5424 r
= s
->clienthello
->pre_proc_exts
+ i
;
5425 if (r
->present
&& r
->type
== type
) {
5427 *out
= PACKET_data(&r
->data
);
5429 *outlen
= PACKET_remaining(&r
->data
);
5436 int SSL_free_buffers(SSL
*ssl
)
5438 RECORD_LAYER
*rl
= &ssl
->rlayer
;
5440 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
5443 RECORD_LAYER_release(rl
);
5447 int SSL_alloc_buffers(SSL
*ssl
)
5449 return ssl3_setup_buffers(ssl
);
5452 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
5454 ctx
->keylog_callback
= cb
;
5457 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
5459 return ctx
->keylog_callback
;
5462 static int nss_keylog_int(const char *prefix
,
5464 const uint8_t *parameter_1
,
5465 size_t parameter_1_len
,
5466 const uint8_t *parameter_2
,
5467 size_t parameter_2_len
)
5470 char *cursor
= NULL
;
5475 if (ssl
->ctx
->keylog_callback
== NULL
)
5479 * Our output buffer will contain the following strings, rendered with
5480 * space characters in between, terminated by a NULL character: first the
5481 * prefix, then the first parameter, then the second parameter. The
5482 * meaning of each parameter depends on the specific key material being
5483 * logged. Note that the first and second parameters are encoded in
5484 * hexadecimal, so we need a buffer that is twice their lengths.
5486 prefix_len
= strlen(prefix
);
5487 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
5488 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5489 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5490 ERR_R_MALLOC_FAILURE
);
5494 strcpy(cursor
, prefix
);
5495 cursor
+= prefix_len
;
5498 for (i
= 0; i
< parameter_1_len
; i
++) {
5499 sprintf(cursor
, "%02x", parameter_1
[i
]);
5504 for (i
= 0; i
< parameter_2_len
; i
++) {
5505 sprintf(cursor
, "%02x", parameter_2
[i
]);
5510 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5511 OPENSSL_clear_free(out
, out_len
);
5516 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5517 const uint8_t *encrypted_premaster
,
5518 size_t encrypted_premaster_len
,
5519 const uint8_t *premaster
,
5520 size_t premaster_len
)
5522 if (encrypted_premaster_len
< 8) {
5523 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5524 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5528 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5529 return nss_keylog_int("RSA",
5531 encrypted_premaster
,
5537 int ssl_log_secret(SSL
*ssl
,
5539 const uint8_t *secret
,
5542 return nss_keylog_int(label
,
5544 ssl
->s3
.client_random
,
5550 #define SSLV2_CIPHER_LEN 3
5552 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5556 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5558 if (PACKET_remaining(cipher_suites
) == 0) {
5559 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5560 SSL_R_NO_CIPHERS_SPECIFIED
);
5564 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5565 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5566 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5570 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
5571 s
->s3
.tmp
.ciphers_raw
= NULL
;
5572 s
->s3
.tmp
.ciphers_rawlen
= 0;
5575 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5576 PACKET sslv2ciphers
= *cipher_suites
;
5577 unsigned int leadbyte
;
5581 * We store the raw ciphers list in SSLv3+ format so we need to do some
5582 * preprocessing to convert the list first. If there are any SSLv2 only
5583 * ciphersuites with a non-zero leading byte then we are going to
5584 * slightly over allocate because we won't store those. But that isn't a
5587 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5588 s
->s3
.tmp
.ciphers_raw
= raw
;
5590 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5591 ERR_R_MALLOC_FAILURE
);
5594 for (s
->s3
.tmp
.ciphers_rawlen
= 0;
5595 PACKET_remaining(&sslv2ciphers
) > 0;
5596 raw
+= TLS_CIPHER_LEN
) {
5597 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5599 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5602 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5603 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5605 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
5606 s
->s3
.tmp
.ciphers_raw
= NULL
;
5607 s
->s3
.tmp
.ciphers_rawlen
= 0;
5611 s
->s3
.tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5613 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
.tmp
.ciphers_raw
,
5614 &s
->s3
.tmp
.ciphers_rawlen
)) {
5615 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5616 ERR_R_INTERNAL_ERROR
);
5622 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5623 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5624 STACK_OF(SSL_CIPHER
) **scsvs
)
5628 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5630 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5633 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5634 STACK_OF(SSL_CIPHER
) **skp
,
5635 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5636 int sslv2format
, int fatal
)
5638 const SSL_CIPHER
*c
;
5639 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5640 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5642 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5643 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5645 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5647 if (PACKET_remaining(cipher_suites
) == 0) {
5649 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5650 SSL_R_NO_CIPHERS_SPECIFIED
);
5652 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5656 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5658 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5659 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5661 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5662 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5666 sk
= sk_SSL_CIPHER_new_null();
5667 scsvs
= sk_SSL_CIPHER_new_null();
5668 if (sk
== NULL
|| scsvs
== NULL
) {
5670 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5671 ERR_R_MALLOC_FAILURE
);
5673 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5677 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5679 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5680 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5681 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5683 if (sslv2format
&& cipher
[0] != '\0')
5686 /* For SSLv2-compat, ignore leading 0-byte. */
5687 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5689 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5690 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5692 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5693 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5695 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5700 if (PACKET_remaining(cipher_suites
) > 0) {
5702 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5705 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5712 sk_SSL_CIPHER_free(sk
);
5713 if (scsvs_out
!= NULL
)
5716 sk_SSL_CIPHER_free(scsvs
);
5719 sk_SSL_CIPHER_free(sk
);
5720 sk_SSL_CIPHER_free(scsvs
);
5724 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5726 ctx
->max_early_data
= max_early_data
;
5731 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5733 return ctx
->max_early_data
;
5736 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5738 s
->max_early_data
= max_early_data
;
5743 uint32_t SSL_get_max_early_data(const SSL
*s
)
5745 return s
->max_early_data
;
5748 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
5750 ctx
->recv_max_early_data
= recv_max_early_data
;
5755 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
5757 return ctx
->recv_max_early_data
;
5760 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
5762 s
->recv_max_early_data
= recv_max_early_data
;
5767 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
5769 return s
->recv_max_early_data
;
5772 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5774 /* Return any active Max Fragment Len extension */
5775 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5776 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5778 /* return current SSL connection setting */
5779 return ssl
->max_send_fragment
;
5782 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5784 /* Return a value regarding an active Max Fragment Len extension */
5785 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5786 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5787 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5789 /* else limit |split_send_fragment| to current |max_send_fragment| */
5790 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5791 return ssl
->max_send_fragment
;
5793 /* return current SSL connection setting */
5794 return ssl
->split_send_fragment
;
5797 int SSL_stateless(SSL
*s
)
5801 /* Ensure there is no state left over from a previous invocation */
5807 s
->s3
.flags
|= TLS1_FLAGS_STATELESS
;
5808 ret
= SSL_accept(s
);
5809 s
->s3
.flags
&= ~TLS1_FLAGS_STATELESS
;
5811 if (ret
> 0 && s
->ext
.cookieok
)
5814 if (s
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(s
))
5820 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
5822 ctx
->pha_enabled
= val
;
5825 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
5827 ssl
->pha_enabled
= val
;
5830 int SSL_verify_client_post_handshake(SSL
*ssl
)
5832 if (!SSL_IS_TLS13(ssl
)) {
5833 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5837 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5841 if (!SSL_is_init_finished(ssl
)) {
5842 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5846 switch (ssl
->post_handshake_auth
) {
5848 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5851 case SSL_PHA_EXT_SENT
:
5852 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5854 case SSL_PHA_EXT_RECEIVED
:
5856 case SSL_PHA_REQUEST_PENDING
:
5857 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5859 case SSL_PHA_REQUESTED
:
5860 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5864 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5866 /* checks verify_mode and algorithm_auth */
5867 if (!send_certificate_request(ssl
)) {
5868 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5869 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5873 ossl_statem_set_in_init(ssl
, 1);
5877 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
5878 SSL_CTX_generate_session_ticket_fn gen_cb
,
5879 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
5882 ctx
->generate_ticket_cb
= gen_cb
;
5883 ctx
->decrypt_ticket_cb
= dec_cb
;
5884 ctx
->ticket_cb_data
= arg
;
5888 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
5889 SSL_allow_early_data_cb_fn cb
,
5892 ctx
->allow_early_data_cb
= cb
;
5893 ctx
->allow_early_data_cb_data
= arg
;
5896 void SSL_set_allow_early_data_cb(SSL
*s
,
5897 SSL_allow_early_data_cb_fn cb
,
5900 s
->allow_early_data_cb
= cb
;
5901 s
->allow_early_data_cb_data
= arg
;
5904 const EVP_CIPHER
*ssl_evp_cipher_fetch(OPENSSL_CTX
*libctx
,
5906 const char *properties
)
5910 #ifndef OPENSSL_NO_ENGINE
5914 * If there is an Engine available for this cipher we use the "implicit"
5915 * form to ensure we use that engine later.
5917 eng
= ENGINE_get_cipher_engine(nid
);
5920 return EVP_get_cipherbynid(nid
);
5924 /* Otherwise we do an explicit fetch. This may fail and that could be ok */
5926 ciph
= EVP_CIPHER_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
5932 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
)
5934 /* Don't up-ref an implicit EVP_CIPHER */
5935 if (EVP_CIPHER_provider(cipher
) == NULL
)
5939 * The cipher was explicitly fetched and therefore it is safe to cast
5942 return EVP_CIPHER_up_ref((EVP_CIPHER
*)cipher
);
5945 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
)
5950 if (EVP_CIPHER_provider(cipher
) != NULL
) {
5952 * The cipher was explicitly fetched and therefore it is safe to cast
5955 EVP_CIPHER_free((EVP_CIPHER
*)cipher
);
5959 const EVP_MD
*ssl_evp_md_fetch(OPENSSL_CTX
*libctx
,
5961 const char *properties
)
5965 #ifndef OPENSSL_NO_ENGINE
5969 * If there is an Engine available for this digest we use the "implicit"
5970 * form to ensure we use that engine later.
5972 eng
= ENGINE_get_digest_engine(nid
);
5975 return EVP_get_digestbynid(nid
);
5979 /* Otherwise we do an explicit fetch */
5981 md
= EVP_MD_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
5986 int ssl_evp_md_up_ref(const EVP_MD
*md
)
5988 /* Don't up-ref an implicit EVP_MD */
5989 if (EVP_MD_provider(md
) == NULL
)
5993 * The digest was explicitly fetched and therefore it is safe to cast
5996 return EVP_MD_up_ref((EVP_MD
*)md
);
5999 void ssl_evp_md_free(const EVP_MD
*md
)
6004 if (EVP_MD_provider(md
) != NULL
) {
6006 * The digest was explicitly fetched and therefore it is safe to cast
6009 EVP_MD_free((EVP_MD
*)md
);