2 * Copyright 1995-2018 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 OpenSSL license (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
14 #include <openssl/objects.h>
15 #include <openssl/x509v3.h>
16 #include <openssl/rand.h>
17 #include <openssl/rand_drbg.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include "internal/cryptlib.h"
24 #include "internal/refcount.h"
26 static int ssl_undefined_function_1(SSL
*ssl
, SSL3_RECORD
*r
, size_t s
, int t
)
31 return ssl_undefined_function(ssl
);
34 static int ssl_undefined_function_2(SSL
*ssl
, SSL3_RECORD
*r
, unsigned char *s
,
40 return ssl_undefined_function(ssl
);
43 static int ssl_undefined_function_3(SSL
*ssl
, unsigned char *r
,
44 unsigned char *s
, size_t t
, size_t *u
)
50 return ssl_undefined_function(ssl
);
53 static int ssl_undefined_function_4(SSL
*ssl
, int r
)
56 return ssl_undefined_function(ssl
);
59 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
)
71 return ssl_undefined_function(NULL
);
74 static int ssl_undefined_function_7(SSL
*ssl
, unsigned char *r
, size_t s
,
75 const char *t
, size_t u
,
76 const unsigned char *v
, size_t w
, int x
)
85 return ssl_undefined_function(ssl
);
88 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
89 ssl_undefined_function_1
,
90 ssl_undefined_function_2
,
91 ssl_undefined_function
,
92 ssl_undefined_function_3
,
93 ssl_undefined_function_4
,
94 ssl_undefined_function_5
,
95 NULL
, /* client_finished_label */
96 0, /* client_finished_label_len */
97 NULL
, /* server_finished_label */
98 0, /* server_finished_label_len */
99 ssl_undefined_function_6
,
100 ssl_undefined_function_7
,
103 struct ssl_async_args
{
107 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
109 int (*func_read
) (SSL
*, void *, size_t, size_t *);
110 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
111 int (*func_other
) (SSL
*);
115 static const struct {
121 DANETLS_MATCHING_FULL
, 0, NID_undef
124 DANETLS_MATCHING_2256
, 1, NID_sha256
127 DANETLS_MATCHING_2512
, 2, NID_sha512
131 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
133 const EVP_MD
**mdevp
;
135 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
136 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
139 if (dctx
->mdevp
!= NULL
)
142 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
143 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
145 if (mdord
== NULL
|| mdevp
== NULL
) {
148 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
152 /* Install default entries */
153 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
156 if (dane_mds
[i
].nid
== NID_undef
||
157 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
159 mdevp
[dane_mds
[i
].mtype
] = md
;
160 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
170 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
172 OPENSSL_free(dctx
->mdevp
);
175 OPENSSL_free(dctx
->mdord
);
180 static void tlsa_free(danetls_record
*t
)
184 OPENSSL_free(t
->data
);
185 EVP_PKEY_free(t
->spki
);
189 static void dane_final(SSL_DANE
*dane
)
191 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
194 sk_X509_pop_free(dane
->certs
, X509_free
);
197 X509_free(dane
->mcert
);
205 * dane_copy - Copy dane configuration, sans verification state.
207 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
212 if (!DANETLS_ENABLED(&from
->dane
))
215 num
= sk_danetls_record_num(from
->dane
.trecs
);
216 dane_final(&to
->dane
);
217 to
->dane
.flags
= from
->dane
.flags
;
218 to
->dane
.dctx
= &to
->ctx
->dane
;
219 to
->dane
.trecs
= sk_danetls_record_new_reserve(NULL
, num
);
221 if (to
->dane
.trecs
== NULL
) {
222 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
226 for (i
= 0; i
< num
; ++i
) {
227 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
229 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
230 t
->data
, t
->dlen
) <= 0)
236 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
237 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
241 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
242 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
246 if (mtype
> dctx
->mdmax
) {
247 const EVP_MD
**mdevp
;
249 int n
= ((int)mtype
) + 1;
251 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
253 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
258 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
260 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
265 /* Zero-fill any gaps */
266 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
274 dctx
->mdevp
[mtype
] = md
;
275 /* Coerce ordinal of disabled matching types to 0 */
276 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
281 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
283 if (mtype
> dane
->dctx
->mdmax
)
285 return dane
->dctx
->mdevp
[mtype
];
288 static int dane_tlsa_add(SSL_DANE
*dane
,
291 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
294 const EVP_MD
*md
= NULL
;
295 int ilen
= (int)dlen
;
299 if (dane
->trecs
== NULL
) {
300 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
304 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
305 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
309 if (usage
> DANETLS_USAGE_LAST
) {
310 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
314 if (selector
> DANETLS_SELECTOR_LAST
) {
315 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
319 if (mtype
!= DANETLS_MATCHING_FULL
) {
320 md
= tlsa_md_get(dane
, mtype
);
322 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
327 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
328 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
332 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
336 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
337 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
342 t
->selector
= selector
;
344 t
->data
= OPENSSL_malloc(dlen
);
345 if (t
->data
== NULL
) {
347 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
350 memcpy(t
->data
, data
, dlen
);
353 /* Validate and cache full certificate or public key */
354 if (mtype
== DANETLS_MATCHING_FULL
) {
355 const unsigned char *p
= data
;
357 EVP_PKEY
*pkey
= NULL
;
360 case DANETLS_SELECTOR_CERT
:
361 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
362 dlen
!= (size_t)(p
- data
)) {
364 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
367 if (X509_get0_pubkey(cert
) == NULL
) {
369 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
373 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
379 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
380 * records that contain full certificates of trust-anchors that are
381 * not present in the wire chain. For usage PKIX-TA(0), we augment
382 * the chain with untrusted Full(0) certificates from DNS, in case
383 * they are missing from the chain.
385 if ((dane
->certs
== NULL
&&
386 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
387 !sk_X509_push(dane
->certs
, cert
)) {
388 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
395 case DANETLS_SELECTOR_SPKI
:
396 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
397 dlen
!= (size_t)(p
- data
)) {
399 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
404 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
405 * records that contain full bare keys of trust-anchors that are
406 * not present in the wire chain.
408 if (usage
== DANETLS_USAGE_DANE_TA
)
417 * Find the right insertion point for the new record.
419 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
420 * they can be processed first, as they require no chain building, and no
421 * expiration or hostname checks. Because DANE-EE(3) is numerically
422 * largest, this is accomplished via descending sort by "usage".
424 * We also sort in descending order by matching ordinal to simplify
425 * the implementation of digest agility in the verification code.
427 * The choice of order for the selector is not significant, so we
428 * use the same descending order for consistency.
430 num
= sk_danetls_record_num(dane
->trecs
);
431 for (i
= 0; i
< num
; ++i
) {
432 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
434 if (rec
->usage
> usage
)
436 if (rec
->usage
< usage
)
438 if (rec
->selector
> selector
)
440 if (rec
->selector
< selector
)
442 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
447 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
449 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
452 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
458 * Return 0 if there is only one version configured and it was disabled
459 * at configure time. Return 1 otherwise.
461 static int ssl_check_allowed_versions(int min_version
, int max_version
)
463 int minisdtls
= 0, maxisdtls
= 0;
465 /* Figure out if we're doing DTLS versions or TLS versions */
466 if (min_version
== DTLS1_BAD_VER
467 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
469 if (max_version
== DTLS1_BAD_VER
470 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
472 /* A wildcard version of 0 could be DTLS or TLS. */
473 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
474 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
475 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
479 if (minisdtls
|| maxisdtls
) {
480 /* Do DTLS version checks. */
481 if (min_version
== 0)
482 /* Ignore DTLS1_BAD_VER */
483 min_version
= DTLS1_VERSION
;
484 if (max_version
== 0)
485 max_version
= DTLS1_2_VERSION
;
486 #ifdef OPENSSL_NO_DTLS1_2
487 if (max_version
== DTLS1_2_VERSION
)
488 max_version
= DTLS1_VERSION
;
490 #ifdef OPENSSL_NO_DTLS1
491 if (min_version
== DTLS1_VERSION
)
492 min_version
= DTLS1_2_VERSION
;
494 /* Done massaging versions; do the check. */
496 #ifdef OPENSSL_NO_DTLS1
497 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
498 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
500 #ifdef OPENSSL_NO_DTLS1_2
501 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
502 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
507 /* Regular TLS version checks. */
508 if (min_version
== 0)
509 min_version
= SSL3_VERSION
;
510 if (max_version
== 0)
511 max_version
= TLS1_3_VERSION
;
512 #ifdef OPENSSL_NO_TLS1_3
513 if (max_version
== TLS1_3_VERSION
)
514 max_version
= TLS1_2_VERSION
;
516 #ifdef OPENSSL_NO_TLS1_2
517 if (max_version
== TLS1_2_VERSION
)
518 max_version
= TLS1_1_VERSION
;
520 #ifdef OPENSSL_NO_TLS1_1
521 if (max_version
== TLS1_1_VERSION
)
522 max_version
= TLS1_VERSION
;
524 #ifdef OPENSSL_NO_TLS1
525 if (max_version
== TLS1_VERSION
)
526 max_version
= SSL3_VERSION
;
528 #ifdef OPENSSL_NO_SSL3
529 if (min_version
== SSL3_VERSION
)
530 min_version
= TLS1_VERSION
;
532 #ifdef OPENSSL_NO_TLS1
533 if (min_version
== TLS1_VERSION
)
534 min_version
= TLS1_1_VERSION
;
536 #ifdef OPENSSL_NO_TLS1_1
537 if (min_version
== TLS1_1_VERSION
)
538 min_version
= TLS1_2_VERSION
;
540 #ifdef OPENSSL_NO_TLS1_2
541 if (min_version
== TLS1_2_VERSION
)
542 min_version
= TLS1_3_VERSION
;
544 /* Done massaging versions; do the check. */
546 #ifdef OPENSSL_NO_SSL3
547 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
549 #ifdef OPENSSL_NO_TLS1
550 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
552 #ifdef OPENSSL_NO_TLS1_1
553 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
555 #ifdef OPENSSL_NO_TLS1_2
556 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
558 #ifdef OPENSSL_NO_TLS1_3
559 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
567 static void clear_ciphers(SSL
*s
)
569 /* clear the current cipher */
570 ssl_clear_cipher_ctx(s
);
571 ssl_clear_hash_ctx(&s
->read_hash
);
572 ssl_clear_hash_ctx(&s
->write_hash
);
575 int SSL_clear(SSL
*s
)
577 if (s
->method
== NULL
) {
578 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
582 if (ssl_clear_bad_session(s
)) {
583 SSL_SESSION_free(s
->session
);
586 SSL_SESSION_free(s
->psksession
);
587 s
->psksession
= NULL
;
588 OPENSSL_free(s
->psksession_id
);
589 s
->psksession_id
= NULL
;
590 s
->psksession_id_len
= 0;
591 s
->hello_retry_request
= 0;
598 if (s
->renegotiate
) {
599 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
603 ossl_statem_clear(s
);
605 s
->version
= s
->method
->version
;
606 s
->client_version
= s
->version
;
607 s
->rwstate
= SSL_NOTHING
;
609 BUF_MEM_free(s
->init_buf
);
614 s
->key_update
= SSL_KEY_UPDATE_NONE
;
616 EVP_MD_CTX_free(s
->pha_dgst
);
619 /* Reset DANE verification result state */
622 X509_free(s
->dane
.mcert
);
623 s
->dane
.mcert
= NULL
;
624 s
->dane
.mtlsa
= NULL
;
626 /* Clear the verification result peername */
627 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
630 * Check to see if we were changed into a different method, if so, revert
633 if (s
->method
!= s
->ctx
->method
) {
634 s
->method
->ssl_free(s
);
635 s
->method
= s
->ctx
->method
;
636 if (!s
->method
->ssl_new(s
))
639 if (!s
->method
->ssl_clear(s
))
643 RECORD_LAYER_clear(&s
->rlayer
);
648 /** Used to change an SSL_CTXs default SSL method type */
649 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
651 STACK_OF(SSL_CIPHER
) *sk
;
655 if (!SSL_CTX_set_ciphersuites(ctx
, TLS_DEFAULT_CIPHERSUITES
)) {
656 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
659 sk
= ssl_create_cipher_list(ctx
->method
,
660 ctx
->tls13_ciphersuites
,
662 &(ctx
->cipher_list_by_id
),
663 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
664 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
665 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
671 SSL
*SSL_new(SSL_CTX
*ctx
)
676 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
679 if (ctx
->method
== NULL
) {
680 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
684 s
= OPENSSL_zalloc(sizeof(*s
));
689 s
->lock
= CRYPTO_THREAD_lock_new();
690 if (s
->lock
== NULL
) {
696 RECORD_LAYER_init(&s
->rlayer
, s
);
698 s
->options
= ctx
->options
;
699 s
->dane
.flags
= ctx
->dane
.flags
;
700 s
->min_proto_version
= ctx
->min_proto_version
;
701 s
->max_proto_version
= ctx
->max_proto_version
;
703 s
->max_cert_list
= ctx
->max_cert_list
;
704 s
->max_early_data
= ctx
->max_early_data
;
705 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
706 s
->num_tickets
= ctx
->num_tickets
;
707 s
->pha_enabled
= ctx
->pha_enabled
;
709 /* Shallow copy of the ciphersuites stack */
710 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
711 if (s
->tls13_ciphersuites
== NULL
)
715 * Earlier library versions used to copy the pointer to the CERT, not
716 * its contents; only when setting new parameters for the per-SSL
717 * copy, ssl_cert_new would be called (and the direct reference to
718 * the per-SSL_CTX settings would be lost, but those still were
719 * indirectly accessed for various purposes, and for that reason they
720 * used to be known as s->ctx->default_cert). Now we don't look at the
721 * SSL_CTX's CERT after having duplicated it once.
723 s
->cert
= ssl_cert_dup(ctx
->cert
);
727 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
728 s
->msg_callback
= ctx
->msg_callback
;
729 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
730 s
->verify_mode
= ctx
->verify_mode
;
731 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
732 s
->record_padding_cb
= ctx
->record_padding_cb
;
733 s
->record_padding_arg
= ctx
->record_padding_arg
;
734 s
->block_padding
= ctx
->block_padding
;
735 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
736 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
738 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
739 s
->verify_callback
= ctx
->default_verify_callback
;
740 s
->generate_session_id
= ctx
->generate_session_id
;
742 s
->param
= X509_VERIFY_PARAM_new();
743 if (s
->param
== NULL
)
745 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
746 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
748 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
749 s
->max_send_fragment
= ctx
->max_send_fragment
;
750 s
->split_send_fragment
= ctx
->split_send_fragment
;
751 s
->max_pipelines
= ctx
->max_pipelines
;
752 if (s
->max_pipelines
> 1)
753 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
754 if (ctx
->default_read_buf_len
> 0)
755 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
760 s
->ext
.debug_arg
= NULL
;
761 s
->ext
.ticket_expected
= 0;
762 s
->ext
.status_type
= ctx
->ext
.status_type
;
763 s
->ext
.status_expected
= 0;
764 s
->ext
.ocsp
.ids
= NULL
;
765 s
->ext
.ocsp
.exts
= NULL
;
766 s
->ext
.ocsp
.resp
= NULL
;
767 s
->ext
.ocsp
.resp_len
= 0;
769 s
->session_ctx
= ctx
;
770 #ifndef OPENSSL_NO_EC
771 if (ctx
->ext
.ecpointformats
) {
772 s
->ext
.ecpointformats
=
773 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
774 ctx
->ext
.ecpointformats_len
);
775 if (!s
->ext
.ecpointformats
)
777 s
->ext
.ecpointformats_len
=
778 ctx
->ext
.ecpointformats_len
;
780 if (ctx
->ext
.supportedgroups
) {
781 s
->ext
.supportedgroups
=
782 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
783 ctx
->ext
.supportedgroups_len
784 * sizeof(*ctx
->ext
.supportedgroups
));
785 if (!s
->ext
.supportedgroups
)
787 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
790 #ifndef OPENSSL_NO_NEXTPROTONEG
794 if (s
->ctx
->ext
.alpn
) {
795 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
796 if (s
->ext
.alpn
== NULL
)
798 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
799 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
802 s
->verified_chain
= NULL
;
803 s
->verify_result
= X509_V_OK
;
805 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
806 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
808 s
->method
= ctx
->method
;
810 s
->key_update
= SSL_KEY_UPDATE_NONE
;
812 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
813 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
815 if (!s
->method
->ssl_new(s
))
818 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
823 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
826 #ifndef OPENSSL_NO_PSK
827 s
->psk_client_callback
= ctx
->psk_client_callback
;
828 s
->psk_server_callback
= ctx
->psk_server_callback
;
830 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
831 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
835 #ifndef OPENSSL_NO_CT
836 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
837 ctx
->ct_validation_callback_arg
))
844 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
848 int SSL_is_dtls(const SSL
*s
)
850 return SSL_IS_DTLS(s
) ? 1 : 0;
853 int SSL_up_ref(SSL
*s
)
857 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
860 REF_PRINT_COUNT("SSL", s
);
861 REF_ASSERT_ISNT(i
< 2);
862 return ((i
> 1) ? 1 : 0);
865 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
866 unsigned int sid_ctx_len
)
868 if (sid_ctx_len
> sizeof(ctx
->sid_ctx
)) {
869 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
870 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
873 ctx
->sid_ctx_length
= sid_ctx_len
;
874 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
879 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
880 unsigned int sid_ctx_len
)
882 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
883 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
884 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
887 ssl
->sid_ctx_length
= sid_ctx_len
;
888 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
893 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
895 CRYPTO_THREAD_write_lock(ctx
->lock
);
896 ctx
->generate_session_id
= cb
;
897 CRYPTO_THREAD_unlock(ctx
->lock
);
901 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
903 CRYPTO_THREAD_write_lock(ssl
->lock
);
904 ssl
->generate_session_id
= cb
;
905 CRYPTO_THREAD_unlock(ssl
->lock
);
909 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
913 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
914 * we can "construct" a session to give us the desired check - i.e. to
915 * find if there's a session in the hash table that would conflict with
916 * any new session built out of this id/id_len and the ssl_version in use
921 if (id_len
> sizeof(r
.session_id
))
924 r
.ssl_version
= ssl
->version
;
925 r
.session_id_length
= id_len
;
926 memcpy(r
.session_id
, id
, id_len
);
928 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
929 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
930 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
934 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
936 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
939 int SSL_set_purpose(SSL
*s
, int purpose
)
941 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
944 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
946 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
949 int SSL_set_trust(SSL
*s
, int trust
)
951 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
954 int SSL_set1_host(SSL
*s
, const char *hostname
)
956 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
959 int SSL_add1_host(SSL
*s
, const char *hostname
)
961 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
964 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
966 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
969 const char *SSL_get0_peername(SSL
*s
)
971 return X509_VERIFY_PARAM_get0_peername(s
->param
);
974 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
976 return dane_ctx_enable(&ctx
->dane
);
979 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
981 unsigned long orig
= ctx
->dane
.flags
;
983 ctx
->dane
.flags
|= flags
;
987 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
989 unsigned long orig
= ctx
->dane
.flags
;
991 ctx
->dane
.flags
&= ~flags
;
995 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
997 SSL_DANE
*dane
= &s
->dane
;
999 if (s
->ctx
->dane
.mdmax
== 0) {
1000 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1003 if (dane
->trecs
!= NULL
) {
1004 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1009 * Default SNI name. This rejects empty names, while set1_host below
1010 * accepts them and disables host name checks. To avoid side-effects with
1011 * invalid input, set the SNI name first.
1013 if (s
->ext
.hostname
== NULL
) {
1014 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1015 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1020 /* Primary RFC6125 reference identifier */
1021 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1022 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1028 dane
->dctx
= &s
->ctx
->dane
;
1029 dane
->trecs
= sk_danetls_record_new_null();
1031 if (dane
->trecs
== NULL
) {
1032 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1038 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1040 unsigned long orig
= ssl
->dane
.flags
;
1042 ssl
->dane
.flags
|= flags
;
1046 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1048 unsigned long orig
= ssl
->dane
.flags
;
1050 ssl
->dane
.flags
&= ~flags
;
1054 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1056 SSL_DANE
*dane
= &s
->dane
;
1058 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1062 *mcert
= dane
->mcert
;
1064 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1069 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1070 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1072 SSL_DANE
*dane
= &s
->dane
;
1074 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1078 *usage
= dane
->mtlsa
->usage
;
1080 *selector
= dane
->mtlsa
->selector
;
1082 *mtype
= dane
->mtlsa
->mtype
;
1084 *data
= dane
->mtlsa
->data
;
1086 *dlen
= dane
->mtlsa
->dlen
;
1091 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1096 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1097 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1099 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1102 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1105 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1108 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1110 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1113 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1115 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1118 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1123 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1128 void SSL_certs_clear(SSL
*s
)
1130 ssl_cert_clear_certs(s
->cert
);
1133 void SSL_free(SSL
*s
)
1139 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1140 REF_PRINT_COUNT("SSL", s
);
1143 REF_ASSERT_ISNT(i
< 0);
1145 X509_VERIFY_PARAM_free(s
->param
);
1146 dane_final(&s
->dane
);
1147 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1149 /* Ignore return value */
1150 ssl_free_wbio_buffer(s
);
1152 BIO_free_all(s
->wbio
);
1153 BIO_free_all(s
->rbio
);
1155 BUF_MEM_free(s
->init_buf
);
1157 /* add extra stuff */
1158 sk_SSL_CIPHER_free(s
->cipher_list
);
1159 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1160 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1162 /* Make the next call work :-) */
1163 if (s
->session
!= NULL
) {
1164 ssl_clear_bad_session(s
);
1165 SSL_SESSION_free(s
->session
);
1167 SSL_SESSION_free(s
->psksession
);
1168 OPENSSL_free(s
->psksession_id
);
1172 ssl_cert_free(s
->cert
);
1173 /* Free up if allocated */
1175 OPENSSL_free(s
->ext
.hostname
);
1176 SSL_CTX_free(s
->session_ctx
);
1177 #ifndef OPENSSL_NO_EC
1178 OPENSSL_free(s
->ext
.ecpointformats
);
1179 OPENSSL_free(s
->ext
.supportedgroups
);
1180 #endif /* OPENSSL_NO_EC */
1181 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1182 #ifndef OPENSSL_NO_OCSP
1183 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1185 #ifndef OPENSSL_NO_CT
1186 SCT_LIST_free(s
->scts
);
1187 OPENSSL_free(s
->ext
.scts
);
1189 OPENSSL_free(s
->ext
.ocsp
.resp
);
1190 OPENSSL_free(s
->ext
.alpn
);
1191 OPENSSL_free(s
->ext
.tls13_cookie
);
1192 OPENSSL_free(s
->clienthello
);
1193 OPENSSL_free(s
->pha_context
);
1194 EVP_MD_CTX_free(s
->pha_dgst
);
1196 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1198 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1200 if (s
->method
!= NULL
)
1201 s
->method
->ssl_free(s
);
1203 RECORD_LAYER_release(&s
->rlayer
);
1205 SSL_CTX_free(s
->ctx
);
1207 ASYNC_WAIT_CTX_free(s
->waitctx
);
1209 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1210 OPENSSL_free(s
->ext
.npn
);
1213 #ifndef OPENSSL_NO_SRTP
1214 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1217 CRYPTO_THREAD_lock_free(s
->lock
);
1222 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1224 BIO_free_all(s
->rbio
);
1228 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1231 * If the output buffering BIO is still in place, remove it
1233 if (s
->bbio
!= NULL
)
1234 s
->wbio
= BIO_pop(s
->wbio
);
1236 BIO_free_all(s
->wbio
);
1239 /* Re-attach |bbio| to the new |wbio|. */
1240 if (s
->bbio
!= NULL
)
1241 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1244 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1247 * For historical reasons, this function has many different cases in
1248 * ownership handling.
1251 /* If nothing has changed, do nothing */
1252 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1256 * If the two arguments are equal then one fewer reference is granted by the
1257 * caller than we want to take
1259 if (rbio
!= NULL
&& rbio
== wbio
)
1263 * If only the wbio is changed only adopt one reference.
1265 if (rbio
== SSL_get_rbio(s
)) {
1266 SSL_set0_wbio(s
, wbio
);
1270 * There is an asymmetry here for historical reasons. If only the rbio is
1271 * changed AND the rbio and wbio were originally different, then we only
1272 * adopt one reference.
1274 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1275 SSL_set0_rbio(s
, rbio
);
1279 /* Otherwise, adopt both references. */
1280 SSL_set0_rbio(s
, rbio
);
1281 SSL_set0_wbio(s
, wbio
);
1284 BIO
*SSL_get_rbio(const SSL
*s
)
1289 BIO
*SSL_get_wbio(const SSL
*s
)
1291 if (s
->bbio
!= NULL
) {
1293 * If |bbio| is active, the true caller-configured BIO is its
1296 return BIO_next(s
->bbio
);
1301 int SSL_get_fd(const SSL
*s
)
1303 return SSL_get_rfd(s
);
1306 int SSL_get_rfd(const SSL
*s
)
1311 b
= SSL_get_rbio(s
);
1312 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1314 BIO_get_fd(r
, &ret
);
1318 int SSL_get_wfd(const SSL
*s
)
1323 b
= SSL_get_wbio(s
);
1324 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1326 BIO_get_fd(r
, &ret
);
1330 #ifndef OPENSSL_NO_SOCK
1331 int SSL_set_fd(SSL
*s
, int fd
)
1336 bio
= BIO_new(BIO_s_socket());
1339 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1342 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1343 SSL_set_bio(s
, bio
, bio
);
1349 int SSL_set_wfd(SSL
*s
, int fd
)
1351 BIO
*rbio
= SSL_get_rbio(s
);
1353 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1354 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1355 BIO
*bio
= BIO_new(BIO_s_socket());
1358 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1361 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1362 SSL_set0_wbio(s
, bio
);
1365 SSL_set0_wbio(s
, rbio
);
1370 int SSL_set_rfd(SSL
*s
, int fd
)
1372 BIO
*wbio
= SSL_get_wbio(s
);
1374 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1375 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1376 BIO
*bio
= BIO_new(BIO_s_socket());
1379 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1382 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1383 SSL_set0_rbio(s
, bio
);
1386 SSL_set0_rbio(s
, wbio
);
1393 /* return length of latest Finished message we sent, copy to 'buf' */
1394 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1398 if (s
->s3
!= NULL
) {
1399 ret
= s
->s3
->tmp
.finish_md_len
;
1402 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1407 /* return length of latest Finished message we expected, copy to 'buf' */
1408 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1412 if (s
->s3
!= NULL
) {
1413 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1416 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1421 int SSL_get_verify_mode(const SSL
*s
)
1423 return s
->verify_mode
;
1426 int SSL_get_verify_depth(const SSL
*s
)
1428 return X509_VERIFY_PARAM_get_depth(s
->param
);
1431 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1432 return s
->verify_callback
;
1435 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1437 return ctx
->verify_mode
;
1440 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1442 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1445 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1446 return ctx
->default_verify_callback
;
1449 void SSL_set_verify(SSL
*s
, int mode
,
1450 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1452 s
->verify_mode
= mode
;
1453 if (callback
!= NULL
)
1454 s
->verify_callback
= callback
;
1457 void SSL_set_verify_depth(SSL
*s
, int depth
)
1459 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1462 void SSL_set_read_ahead(SSL
*s
, int yes
)
1464 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1467 int SSL_get_read_ahead(const SSL
*s
)
1469 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1472 int SSL_pending(const SSL
*s
)
1474 size_t pending
= s
->method
->ssl_pending(s
);
1477 * SSL_pending cannot work properly if read-ahead is enabled
1478 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1479 * impossible to fix since SSL_pending cannot report errors that may be
1480 * observed while scanning the new data. (Note that SSL_pending() is
1481 * often used as a boolean value, so we'd better not return -1.)
1483 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1484 * we just return INT_MAX.
1486 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1489 int SSL_has_pending(const SSL
*s
)
1492 * Similar to SSL_pending() but returns a 1 to indicate that we have
1493 * unprocessed data available or 0 otherwise (as opposed to the number of
1494 * bytes available). Unlike SSL_pending() this will take into account
1495 * read_ahead data. A 1 return simply indicates that we have unprocessed
1496 * data. That data may not result in any application data, or we may fail
1497 * to parse the records for some reason.
1499 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1502 return RECORD_LAYER_read_pending(&s
->rlayer
);
1505 X509
*SSL_get_peer_certificate(const SSL
*s
)
1509 if ((s
== NULL
) || (s
->session
== NULL
))
1512 r
= s
->session
->peer
;
1522 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1526 if ((s
== NULL
) || (s
->session
== NULL
))
1529 r
= s
->session
->peer_chain
;
1532 * If we are a client, cert_chain includes the peer's own certificate; if
1533 * we are a server, it does not.
1540 * Now in theory, since the calling process own 't' it should be safe to
1541 * modify. We need to be able to read f without being hassled
1543 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1546 /* Do we need to to SSL locking? */
1547 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1552 * what if we are setup for one protocol version but want to talk another
1554 if (t
->method
!= f
->method
) {
1555 t
->method
->ssl_free(t
);
1556 t
->method
= f
->method
;
1557 if (t
->method
->ssl_new(t
) == 0)
1561 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1562 ssl_cert_free(t
->cert
);
1564 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1571 /* Fix this so it checks all the valid key/cert options */
1572 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1574 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1575 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1578 if (ctx
->cert
->key
->privatekey
== NULL
) {
1579 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1582 return X509_check_private_key
1583 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1586 /* Fix this function so that it takes an optional type parameter */
1587 int SSL_check_private_key(const SSL
*ssl
)
1590 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1593 if (ssl
->cert
->key
->x509
== NULL
) {
1594 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1597 if (ssl
->cert
->key
->privatekey
== NULL
) {
1598 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1601 return X509_check_private_key(ssl
->cert
->key
->x509
,
1602 ssl
->cert
->key
->privatekey
);
1605 int SSL_waiting_for_async(SSL
*s
)
1613 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1615 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1619 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1622 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1623 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1625 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1629 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1633 int SSL_accept(SSL
*s
)
1635 if (s
->handshake_func
== NULL
) {
1636 /* Not properly initialized yet */
1637 SSL_set_accept_state(s
);
1640 return SSL_do_handshake(s
);
1643 int SSL_connect(SSL
*s
)
1645 if (s
->handshake_func
== NULL
) {
1646 /* Not properly initialized yet */
1647 SSL_set_connect_state(s
);
1650 return SSL_do_handshake(s
);
1653 long SSL_get_default_timeout(const SSL
*s
)
1655 return s
->method
->get_timeout();
1658 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1659 int (*func
) (void *))
1662 if (s
->waitctx
== NULL
) {
1663 s
->waitctx
= ASYNC_WAIT_CTX_new();
1664 if (s
->waitctx
== NULL
)
1667 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1668 sizeof(struct ssl_async_args
))) {
1670 s
->rwstate
= SSL_NOTHING
;
1671 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1674 s
->rwstate
= SSL_ASYNC_PAUSED
;
1677 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1683 s
->rwstate
= SSL_NOTHING
;
1684 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1685 /* Shouldn't happen */
1690 static int ssl_io_intern(void *vargs
)
1692 struct ssl_async_args
*args
;
1697 args
= (struct ssl_async_args
*)vargs
;
1701 switch (args
->type
) {
1703 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1705 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1707 return args
->f
.func_other(s
);
1712 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1714 if (s
->handshake_func
== NULL
) {
1715 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1719 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1720 s
->rwstate
= SSL_NOTHING
;
1724 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1725 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1726 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1730 * If we are a client and haven't received the ServerHello etc then we
1733 ossl_statem_check_finish_init(s
, 0);
1735 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1736 struct ssl_async_args args
;
1742 args
.type
= READFUNC
;
1743 args
.f
.func_read
= s
->method
->ssl_read
;
1745 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1746 *readbytes
= s
->asyncrw
;
1749 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1753 int SSL_read(SSL
*s
, void *buf
, int num
)
1759 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1763 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1766 * The cast is safe here because ret should be <= INT_MAX because num is
1770 ret
= (int)readbytes
;
1775 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1777 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1784 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1789 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1790 return SSL_READ_EARLY_DATA_ERROR
;
1793 switch (s
->early_data_state
) {
1794 case SSL_EARLY_DATA_NONE
:
1795 if (!SSL_in_before(s
)) {
1796 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1797 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1798 return SSL_READ_EARLY_DATA_ERROR
;
1802 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1803 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1804 ret
= SSL_accept(s
);
1807 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1808 return SSL_READ_EARLY_DATA_ERROR
;
1812 case SSL_EARLY_DATA_READ_RETRY
:
1813 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1814 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1815 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1817 * State machine will update early_data_state to
1818 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1821 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1822 != SSL_EARLY_DATA_FINISHED_READING
)) {
1823 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1824 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1825 : SSL_READ_EARLY_DATA_ERROR
;
1828 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1831 return SSL_READ_EARLY_DATA_FINISH
;
1834 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1835 return SSL_READ_EARLY_DATA_ERROR
;
1839 int SSL_get_early_data_status(const SSL
*s
)
1841 return s
->ext
.early_data
;
1844 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1846 if (s
->handshake_func
== NULL
) {
1847 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1851 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1854 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1855 struct ssl_async_args args
;
1861 args
.type
= READFUNC
;
1862 args
.f
.func_read
= s
->method
->ssl_peek
;
1864 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1865 *readbytes
= s
->asyncrw
;
1868 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1872 int SSL_peek(SSL
*s
, void *buf
, int num
)
1878 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1882 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1885 * The cast is safe here because ret should be <= INT_MAX because num is
1889 ret
= (int)readbytes
;
1895 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1897 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1904 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1906 if (s
->handshake_func
== NULL
) {
1907 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1911 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1912 s
->rwstate
= SSL_NOTHING
;
1913 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1917 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1918 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1919 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1920 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1923 /* If we are a client and haven't sent the Finished we better do that */
1924 ossl_statem_check_finish_init(s
, 1);
1926 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1928 struct ssl_async_args args
;
1931 args
.buf
= (void *)buf
;
1933 args
.type
= WRITEFUNC
;
1934 args
.f
.func_write
= s
->method
->ssl_write
;
1936 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1937 *written
= s
->asyncrw
;
1940 return s
->method
->ssl_write(s
, buf
, num
, written
);
1944 int SSL_write(SSL
*s
, const void *buf
, int num
)
1950 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1954 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1957 * The cast is safe here because ret should be <= INT_MAX because num is
1966 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1968 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1975 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1977 int ret
, early_data_state
;
1979 uint32_t partialwrite
;
1981 switch (s
->early_data_state
) {
1982 case SSL_EARLY_DATA_NONE
:
1984 || !SSL_in_before(s
)
1985 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
1986 && (s
->psk_use_session_cb
== NULL
))) {
1987 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1988 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1993 case SSL_EARLY_DATA_CONNECT_RETRY
:
1994 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1995 ret
= SSL_connect(s
);
1998 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2003 case SSL_EARLY_DATA_WRITE_RETRY
:
2004 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2006 * We disable partial write for early data because we don't keep track
2007 * of how many bytes we've written between the SSL_write_ex() call and
2008 * the flush if the flush needs to be retried)
2010 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2011 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2012 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2013 s
->mode
|= partialwrite
;
2015 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2018 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2021 case SSL_EARLY_DATA_WRITE_FLUSH
:
2022 /* The buffering BIO is still in place so we need to flush it */
2023 if (statem_flush(s
) != 1)
2026 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2029 case SSL_EARLY_DATA_FINISHED_READING
:
2030 case SSL_EARLY_DATA_READ_RETRY
:
2031 early_data_state
= s
->early_data_state
;
2032 /* We are a server writing to an unauthenticated client */
2033 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2034 ret
= SSL_write_ex(s
, buf
, num
, written
);
2035 /* The buffering BIO is still in place */
2037 (void)BIO_flush(s
->wbio
);
2038 s
->early_data_state
= early_data_state
;
2042 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2047 int SSL_shutdown(SSL
*s
)
2050 * Note that this function behaves differently from what one might
2051 * expect. Return values are 0 for no success (yet), 1 for success; but
2052 * calling it once is usually not enough, even if blocking I/O is used
2053 * (see ssl3_shutdown).
2056 if (s
->handshake_func
== NULL
) {
2057 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2061 if (!SSL_in_init(s
)) {
2062 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2063 struct ssl_async_args args
;
2066 args
.type
= OTHERFUNC
;
2067 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2069 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2071 return s
->method
->ssl_shutdown(s
);
2074 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2079 int SSL_key_update(SSL
*s
, int updatetype
)
2082 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2083 * negotiated, and that it is appropriate to call SSL_key_update() instead
2084 * of SSL_renegotiate().
2086 if (!SSL_IS_TLS13(s
)) {
2087 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2091 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2092 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2093 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2097 if (!SSL_is_init_finished(s
)) {
2098 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2102 ossl_statem_set_in_init(s
, 1);
2103 s
->key_update
= updatetype
;
2107 int SSL_get_key_update_type(SSL
*s
)
2109 return s
->key_update
;
2112 int SSL_renegotiate(SSL
*s
)
2114 if (SSL_IS_TLS13(s
)) {
2115 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2119 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2120 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2127 return s
->method
->ssl_renegotiate(s
);
2130 int SSL_renegotiate_abbreviated(SSL
*s
)
2132 if (SSL_IS_TLS13(s
)) {
2133 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2137 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2138 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2145 return s
->method
->ssl_renegotiate(s
);
2148 int SSL_renegotiate_pending(SSL
*s
)
2151 * becomes true when negotiation is requested; false again once a
2152 * handshake has finished
2154 return (s
->renegotiate
!= 0);
2157 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2162 case SSL_CTRL_GET_READ_AHEAD
:
2163 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2164 case SSL_CTRL_SET_READ_AHEAD
:
2165 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2166 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2169 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2170 s
->msg_callback_arg
= parg
;
2174 return (s
->mode
|= larg
);
2175 case SSL_CTRL_CLEAR_MODE
:
2176 return (s
->mode
&= ~larg
);
2177 case SSL_CTRL_GET_MAX_CERT_LIST
:
2178 return (long)s
->max_cert_list
;
2179 case SSL_CTRL_SET_MAX_CERT_LIST
:
2182 l
= (long)s
->max_cert_list
;
2183 s
->max_cert_list
= (size_t)larg
;
2185 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2186 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2188 s
->max_send_fragment
= larg
;
2189 if (s
->max_send_fragment
< s
->split_send_fragment
)
2190 s
->split_send_fragment
= s
->max_send_fragment
;
2192 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2193 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2195 s
->split_send_fragment
= larg
;
2197 case SSL_CTRL_SET_MAX_PIPELINES
:
2198 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2200 s
->max_pipelines
= larg
;
2202 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2204 case SSL_CTRL_GET_RI_SUPPORT
:
2206 return s
->s3
->send_connection_binding
;
2209 case SSL_CTRL_CERT_FLAGS
:
2210 return (s
->cert
->cert_flags
|= larg
);
2211 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2212 return (s
->cert
->cert_flags
&= ~larg
);
2214 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2216 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2218 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2219 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2221 return TLS_CIPHER_LEN
;
2223 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2224 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2226 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2230 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2231 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2232 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2233 &s
->min_proto_version
);
2234 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2235 return s
->min_proto_version
;
2236 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2237 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2238 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2239 &s
->max_proto_version
);
2240 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2241 return s
->max_proto_version
;
2243 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2247 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2250 case SSL_CTRL_SET_MSG_CALLBACK
:
2251 s
->msg_callback
= (void (*)
2252 (int write_p
, int version
, int content_type
,
2253 const void *buf
, size_t len
, SSL
*ssl
,
2258 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2262 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2264 return ctx
->sessions
;
2267 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2270 /* For some cases with ctx == NULL perform syntax checks */
2273 #ifndef OPENSSL_NO_EC
2274 case SSL_CTRL_SET_GROUPS_LIST
:
2275 return tls1_set_groups_list(NULL
, NULL
, parg
);
2277 case SSL_CTRL_SET_SIGALGS_LIST
:
2278 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2279 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2286 case SSL_CTRL_GET_READ_AHEAD
:
2287 return ctx
->read_ahead
;
2288 case SSL_CTRL_SET_READ_AHEAD
:
2289 l
= ctx
->read_ahead
;
2290 ctx
->read_ahead
= larg
;
2293 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2294 ctx
->msg_callback_arg
= parg
;
2297 case SSL_CTRL_GET_MAX_CERT_LIST
:
2298 return (long)ctx
->max_cert_list
;
2299 case SSL_CTRL_SET_MAX_CERT_LIST
:
2302 l
= (long)ctx
->max_cert_list
;
2303 ctx
->max_cert_list
= (size_t)larg
;
2306 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2309 l
= (long)ctx
->session_cache_size
;
2310 ctx
->session_cache_size
= (size_t)larg
;
2312 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2313 return (long)ctx
->session_cache_size
;
2314 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2315 l
= ctx
->session_cache_mode
;
2316 ctx
->session_cache_mode
= larg
;
2318 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2319 return ctx
->session_cache_mode
;
2321 case SSL_CTRL_SESS_NUMBER
:
2322 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2323 case SSL_CTRL_SESS_CONNECT
:
2324 return tsan_load(&ctx
->stats
.sess_connect
);
2325 case SSL_CTRL_SESS_CONNECT_GOOD
:
2326 return tsan_load(&ctx
->stats
.sess_connect_good
);
2327 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2328 return tsan_load(&ctx
->stats
.sess_connect_renegotiate
);
2329 case SSL_CTRL_SESS_ACCEPT
:
2330 return tsan_load(&ctx
->stats
.sess_accept
);
2331 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2332 return tsan_load(&ctx
->stats
.sess_accept_good
);
2333 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2334 return tsan_load(&ctx
->stats
.sess_accept_renegotiate
);
2335 case SSL_CTRL_SESS_HIT
:
2336 return tsan_load(&ctx
->stats
.sess_hit
);
2337 case SSL_CTRL_SESS_CB_HIT
:
2338 return tsan_load(&ctx
->stats
.sess_cb_hit
);
2339 case SSL_CTRL_SESS_MISSES
:
2340 return tsan_load(&ctx
->stats
.sess_miss
);
2341 case SSL_CTRL_SESS_TIMEOUTS
:
2342 return tsan_load(&ctx
->stats
.sess_timeout
);
2343 case SSL_CTRL_SESS_CACHE_FULL
:
2344 return tsan_load(&ctx
->stats
.sess_cache_full
);
2346 return (ctx
->mode
|= larg
);
2347 case SSL_CTRL_CLEAR_MODE
:
2348 return (ctx
->mode
&= ~larg
);
2349 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2350 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2352 ctx
->max_send_fragment
= larg
;
2353 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2354 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2356 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2357 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2359 ctx
->split_send_fragment
= larg
;
2361 case SSL_CTRL_SET_MAX_PIPELINES
:
2362 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2364 ctx
->max_pipelines
= larg
;
2366 case SSL_CTRL_CERT_FLAGS
:
2367 return (ctx
->cert
->cert_flags
|= larg
);
2368 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2369 return (ctx
->cert
->cert_flags
&= ~larg
);
2370 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2371 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2372 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2373 &ctx
->min_proto_version
);
2374 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2375 return ctx
->min_proto_version
;
2376 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2377 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2378 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2379 &ctx
->max_proto_version
);
2380 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2381 return ctx
->max_proto_version
;
2383 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2387 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2390 case SSL_CTRL_SET_MSG_CALLBACK
:
2391 ctx
->msg_callback
= (void (*)
2392 (int write_p
, int version
, int content_type
,
2393 const void *buf
, size_t len
, SSL
*ssl
,
2398 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2402 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2411 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2412 const SSL_CIPHER
*const *bp
)
2414 if ((*ap
)->id
> (*bp
)->id
)
2416 if ((*ap
)->id
< (*bp
)->id
)
2421 /** return a STACK of the ciphers available for the SSL and in order of
2423 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2426 if (s
->cipher_list
!= NULL
) {
2427 return s
->cipher_list
;
2428 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2429 return s
->ctx
->cipher_list
;
2435 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2437 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2439 return s
->session
->ciphers
;
2442 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2444 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2447 ciphers
= SSL_get_ciphers(s
);
2450 if (!ssl_set_client_disabled(s
))
2452 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2453 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2454 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2456 sk
= sk_SSL_CIPHER_new_null();
2459 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2460 sk_SSL_CIPHER_free(sk
);
2468 /** return a STACK of the ciphers available for the SSL and in order of
2470 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2473 if (s
->cipher_list_by_id
!= NULL
) {
2474 return s
->cipher_list_by_id
;
2475 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2476 return s
->ctx
->cipher_list_by_id
;
2482 /** The old interface to get the same thing as SSL_get_ciphers() */
2483 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2485 const SSL_CIPHER
*c
;
2486 STACK_OF(SSL_CIPHER
) *sk
;
2490 sk
= SSL_get_ciphers(s
);
2491 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2493 c
= sk_SSL_CIPHER_value(sk
, n
);
2499 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2501 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2504 return ctx
->cipher_list
;
2508 /** specify the ciphers to be used by default by the SSL_CTX */
2509 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2511 STACK_OF(SSL_CIPHER
) *sk
;
2513 sk
= ssl_create_cipher_list(ctx
->method
, ctx
->tls13_ciphersuites
,
2514 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
2517 * ssl_create_cipher_list may return an empty stack if it was unable to
2518 * find a cipher matching the given rule string (for example if the rule
2519 * string specifies a cipher which has been disabled). This is not an
2520 * error as far as ssl_create_cipher_list is concerned, and hence
2521 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2525 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2526 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2532 /** specify the ciphers to be used by the SSL */
2533 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2535 STACK_OF(SSL_CIPHER
) *sk
;
2537 sk
= ssl_create_cipher_list(s
->ctx
->method
, s
->tls13_ciphersuites
,
2538 &s
->cipher_list
, &s
->cipher_list_by_id
, str
,
2540 /* see comment in SSL_CTX_set_cipher_list */
2543 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2544 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2550 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
2553 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
2554 const SSL_CIPHER
*c
;
2558 || s
->session
== NULL
2559 || s
->session
->ciphers
== NULL
2564 clntsk
= s
->session
->ciphers
;
2565 srvrsk
= SSL_get_ciphers(s
);
2566 if (clntsk
== NULL
|| srvrsk
== NULL
)
2569 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
2572 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
2575 c
= sk_SSL_CIPHER_value(clntsk
, i
);
2576 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
2579 n
= strlen(c
->name
);
2595 /** return a servername extension value if provided in Client Hello, or NULL.
2596 * So far, only host_name types are defined (RFC 3546).
2599 const char *SSL_get_servername(const SSL
*s
, const int type
)
2601 if (type
!= TLSEXT_NAMETYPE_host_name
)
2605 * SNI is not negotiated in pre-TLS-1.3 resumption flows, so fake up an
2606 * SNI value to return if we are resuming/resumed. N.B. that we still
2607 * call the relevant callbacks for such resumption flows, and callbacks
2608 * might error out if there is not a SNI value available.
2611 return s
->session
->ext
.hostname
;
2612 return s
->ext
.hostname
;
2615 int SSL_get_servername_type(const SSL
*s
)
2618 && (!s
->ext
.hostname
? s
->session
->
2619 ext
.hostname
: s
->ext
.hostname
))
2620 return TLSEXT_NAMETYPE_host_name
;
2625 * SSL_select_next_proto implements the standard protocol selection. It is
2626 * expected that this function is called from the callback set by
2627 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2628 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2629 * not included in the length. A byte string of length 0 is invalid. No byte
2630 * string may be truncated. The current, but experimental algorithm for
2631 * selecting the protocol is: 1) If the server doesn't support NPN then this
2632 * is indicated to the callback. In this case, the client application has to
2633 * abort the connection or have a default application level protocol. 2) If
2634 * the server supports NPN, but advertises an empty list then the client
2635 * selects the first protocol in its list, but indicates via the API that this
2636 * fallback case was enacted. 3) Otherwise, the client finds the first
2637 * protocol in the server's list that it supports and selects this protocol.
2638 * This is because it's assumed that the server has better information about
2639 * which protocol a client should use. 4) If the client doesn't support any
2640 * of the server's advertised protocols, then this is treated the same as
2641 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2642 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2644 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2645 const unsigned char *server
,
2646 unsigned int server_len
,
2647 const unsigned char *client
, unsigned int client_len
)
2650 const unsigned char *result
;
2651 int status
= OPENSSL_NPN_UNSUPPORTED
;
2654 * For each protocol in server preference order, see if we support it.
2656 for (i
= 0; i
< server_len
;) {
2657 for (j
= 0; j
< client_len
;) {
2658 if (server
[i
] == client
[j
] &&
2659 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2660 /* We found a match */
2661 result
= &server
[i
];
2662 status
= OPENSSL_NPN_NEGOTIATED
;
2672 /* There's no overlap between our protocols and the server's list. */
2674 status
= OPENSSL_NPN_NO_OVERLAP
;
2677 *out
= (unsigned char *)result
+ 1;
2678 *outlen
= result
[0];
2682 #ifndef OPENSSL_NO_NEXTPROTONEG
2684 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2685 * client's requested protocol for this connection and returns 0. If the
2686 * client didn't request any protocol, then *data is set to NULL. Note that
2687 * the client can request any protocol it chooses. The value returned from
2688 * this function need not be a member of the list of supported protocols
2689 * provided by the callback.
2691 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2698 *len
= (unsigned int)s
->ext
.npn_len
;
2703 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2704 * a TLS server needs a list of supported protocols for Next Protocol
2705 * Negotiation. The returned list must be in wire format. The list is
2706 * returned by setting |out| to point to it and |outlen| to its length. This
2707 * memory will not be modified, but one should assume that the SSL* keeps a
2708 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2709 * wishes to advertise. Otherwise, no such extension will be included in the
2712 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2713 SSL_CTX_npn_advertised_cb_func cb
,
2716 ctx
->ext
.npn_advertised_cb
= cb
;
2717 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2721 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2722 * client needs to select a protocol from the server's provided list. |out|
2723 * must be set to point to the selected protocol (which may be within |in|).
2724 * The length of the protocol name must be written into |outlen|. The
2725 * server's advertised protocols are provided in |in| and |inlen|. The
2726 * callback can assume that |in| is syntactically valid. The client must
2727 * select a protocol. It is fatal to the connection if this callback returns
2728 * a value other than SSL_TLSEXT_ERR_OK.
2730 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2731 SSL_CTX_npn_select_cb_func cb
,
2734 ctx
->ext
.npn_select_cb
= cb
;
2735 ctx
->ext
.npn_select_cb_arg
= arg
;
2740 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2741 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2742 * length-prefixed strings). Returns 0 on success.
2744 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2745 unsigned int protos_len
)
2747 OPENSSL_free(ctx
->ext
.alpn
);
2748 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2749 if (ctx
->ext
.alpn
== NULL
) {
2750 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2753 ctx
->ext
.alpn_len
= protos_len
;
2759 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2760 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2761 * length-prefixed strings). Returns 0 on success.
2763 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2764 unsigned int protos_len
)
2766 OPENSSL_free(ssl
->ext
.alpn
);
2767 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2768 if (ssl
->ext
.alpn
== NULL
) {
2769 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2772 ssl
->ext
.alpn_len
= protos_len
;
2778 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2779 * called during ClientHello processing in order to select an ALPN protocol
2780 * from the client's list of offered protocols.
2782 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2783 SSL_CTX_alpn_select_cb_func cb
,
2786 ctx
->ext
.alpn_select_cb
= cb
;
2787 ctx
->ext
.alpn_select_cb_arg
= arg
;
2791 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2792 * On return it sets |*data| to point to |*len| bytes of protocol name
2793 * (not including the leading length-prefix byte). If the server didn't
2794 * respond with a negotiated protocol then |*len| will be zero.
2796 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2801 *data
= ssl
->s3
->alpn_selected
;
2805 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2808 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2809 const char *label
, size_t llen
,
2810 const unsigned char *context
, size_t contextlen
,
2813 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2816 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2818 contextlen
, use_context
);
2821 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
2822 const char *label
, size_t llen
,
2823 const unsigned char *context
,
2826 if (s
->version
!= TLS1_3_VERSION
)
2829 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
2830 context
, contextlen
);
2833 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2835 const unsigned char *session_id
= a
->session_id
;
2837 unsigned char tmp_storage
[4];
2839 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2840 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2841 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2842 session_id
= tmp_storage
;
2846 ((unsigned long)session_id
[0]) |
2847 ((unsigned long)session_id
[1] << 8L) |
2848 ((unsigned long)session_id
[2] << 16L) |
2849 ((unsigned long)session_id
[3] << 24L);
2854 * NB: If this function (or indeed the hash function which uses a sort of
2855 * coarser function than this one) is changed, ensure
2856 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2857 * being able to construct an SSL_SESSION that will collide with any existing
2858 * session with a matching session ID.
2860 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2862 if (a
->ssl_version
!= b
->ssl_version
)
2864 if (a
->session_id_length
!= b
->session_id_length
)
2866 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
2870 * These wrapper functions should remain rather than redeclaring
2871 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2872 * variable. The reason is that the functions aren't static, they're exposed
2876 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2878 SSL_CTX
*ret
= NULL
;
2881 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2885 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2888 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2889 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2892 ret
= OPENSSL_zalloc(sizeof(*ret
));
2897 ret
->min_proto_version
= 0;
2898 ret
->max_proto_version
= 0;
2899 ret
->mode
= SSL_MODE_AUTO_RETRY
;
2900 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2901 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2902 /* We take the system default. */
2903 ret
->session_timeout
= meth
->get_timeout();
2904 ret
->references
= 1;
2905 ret
->lock
= CRYPTO_THREAD_lock_new();
2906 if (ret
->lock
== NULL
) {
2907 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2911 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2912 ret
->verify_mode
= SSL_VERIFY_NONE
;
2913 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2916 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2917 if (ret
->sessions
== NULL
)
2919 ret
->cert_store
= X509_STORE_new();
2920 if (ret
->cert_store
== NULL
)
2922 #ifndef OPENSSL_NO_CT
2923 ret
->ctlog_store
= CTLOG_STORE_new();
2924 if (ret
->ctlog_store
== NULL
)
2928 if (!SSL_CTX_set_ciphersuites(ret
, TLS_DEFAULT_CIPHERSUITES
))
2931 if (!ssl_create_cipher_list(ret
->method
,
2932 ret
->tls13_ciphersuites
,
2933 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2934 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2935 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2936 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2940 ret
->param
= X509_VERIFY_PARAM_new();
2941 if (ret
->param
== NULL
)
2944 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2945 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2948 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2949 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2953 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2956 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2959 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
2962 /* No compression for DTLS */
2963 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2964 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2966 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2967 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2969 /* Setup RFC5077 ticket keys */
2970 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2971 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2972 || (RAND_priv_bytes(ret
->ext
.secure
->tick_hmac_key
,
2973 sizeof(ret
->ext
.secure
->tick_hmac_key
)) <= 0)
2974 || (RAND_priv_bytes(ret
->ext
.secure
->tick_aes_key
,
2975 sizeof(ret
->ext
.secure
->tick_aes_key
)) <= 0))
2976 ret
->options
|= SSL_OP_NO_TICKET
;
2978 if (RAND_priv_bytes(ret
->ext
.cookie_hmac_key
,
2979 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
2982 #ifndef OPENSSL_NO_SRP
2983 if (!SSL_CTX_SRP_CTX_init(ret
))
2986 #ifndef OPENSSL_NO_ENGINE
2987 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2988 # define eng_strx(x) #x
2989 # define eng_str(x) eng_strx(x)
2990 /* Use specific client engine automatically... ignore errors */
2993 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2996 ENGINE_load_builtin_engines();
2997 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2999 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3005 * Default is to connect to non-RI servers. When RI is more widely
3006 * deployed might change this.
3008 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
3010 * Disable compression by default to prevent CRIME. Applications can
3011 * re-enable compression by configuring
3012 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3013 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3014 * middlebox compatibility by default. This may be disabled by default in
3015 * a later OpenSSL version.
3017 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3019 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3022 * We cannot usefully set a default max_early_data here (which gets
3023 * propagated in SSL_new(), for the following reason: setting the
3024 * SSL field causes tls_construct_stoc_early_data() to tell the
3025 * client that early data will be accepted when constructing a TLS 1.3
3026 * session ticket, and the client will accordingly send us early data
3027 * when using that ticket (if the client has early data to send).
3028 * However, in order for the early data to actually be consumed by
3029 * the application, the application must also have calls to
3030 * SSL_read_early_data(); otherwise we'll just skip past the early data
3031 * and ignore it. So, since the application must add calls to
3032 * SSL_read_early_data(), we also require them to add
3033 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3034 * eliminating the bandwidth-wasting early data in the case described
3037 ret
->max_early_data
= 0;
3040 * Default recv_max_early_data is a fully loaded single record. Could be
3041 * split across multiple records in practice. We set this differently to
3042 * max_early_data so that, in the default case, we do not advertise any
3043 * support for early_data, but if a client were to send us some (e.g.
3044 * because of an old, stale ticket) then we will tolerate it and skip over
3047 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3049 /* By default we send two session tickets automatically in TLSv1.3 */
3050 ret
->num_tickets
= 2;
3052 ssl_ctx_system_config(ret
);
3056 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3062 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3066 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3069 REF_PRINT_COUNT("SSL_CTX", ctx
);
3070 REF_ASSERT_ISNT(i
< 2);
3071 return ((i
> 1) ? 1 : 0);
3074 void SSL_CTX_free(SSL_CTX
*a
)
3081 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3082 REF_PRINT_COUNT("SSL_CTX", a
);
3085 REF_ASSERT_ISNT(i
< 0);
3087 X509_VERIFY_PARAM_free(a
->param
);
3088 dane_ctx_final(&a
->dane
);
3091 * Free internal session cache. However: the remove_cb() may reference
3092 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3093 * after the sessions were flushed.
3094 * As the ex_data handling routines might also touch the session cache,
3095 * the most secure solution seems to be: empty (flush) the cache, then
3096 * free ex_data, then finally free the cache.
3097 * (See ticket [openssl.org #212].)
3099 if (a
->sessions
!= NULL
)
3100 SSL_CTX_flush_sessions(a
, 0);
3102 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3103 lh_SSL_SESSION_free(a
->sessions
);
3104 X509_STORE_free(a
->cert_store
);
3105 #ifndef OPENSSL_NO_CT
3106 CTLOG_STORE_free(a
->ctlog_store
);
3108 sk_SSL_CIPHER_free(a
->cipher_list
);
3109 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3110 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3111 ssl_cert_free(a
->cert
);
3112 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3113 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3114 a
->comp_methods
= NULL
;
3115 #ifndef OPENSSL_NO_SRTP
3116 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3118 #ifndef OPENSSL_NO_SRP
3119 SSL_CTX_SRP_CTX_free(a
);
3121 #ifndef OPENSSL_NO_ENGINE
3122 ENGINE_finish(a
->client_cert_engine
);
3125 #ifndef OPENSSL_NO_EC
3126 OPENSSL_free(a
->ext
.ecpointformats
);
3127 OPENSSL_free(a
->ext
.supportedgroups
);
3129 OPENSSL_free(a
->ext
.alpn
);
3130 OPENSSL_secure_free(a
->ext
.secure
);
3132 CRYPTO_THREAD_lock_free(a
->lock
);
3137 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3139 ctx
->default_passwd_callback
= cb
;
3142 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3144 ctx
->default_passwd_callback_userdata
= u
;
3147 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3149 return ctx
->default_passwd_callback
;
3152 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3154 return ctx
->default_passwd_callback_userdata
;
3157 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3159 s
->default_passwd_callback
= cb
;
3162 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3164 s
->default_passwd_callback_userdata
= u
;
3167 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3169 return s
->default_passwd_callback
;
3172 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3174 return s
->default_passwd_callback_userdata
;
3177 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3178 int (*cb
) (X509_STORE_CTX
*, void *),
3181 ctx
->app_verify_callback
= cb
;
3182 ctx
->app_verify_arg
= arg
;
3185 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3186 int (*cb
) (int, X509_STORE_CTX
*))
3188 ctx
->verify_mode
= mode
;
3189 ctx
->default_verify_callback
= cb
;
3192 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3194 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3197 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3199 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3202 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3204 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3207 void ssl_set_masks(SSL
*s
)
3210 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3211 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3212 unsigned long mask_k
, mask_a
;
3213 #ifndef OPENSSL_NO_EC
3214 int have_ecc_cert
, ecdsa_ok
;
3219 #ifndef OPENSSL_NO_DH
3220 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3225 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3226 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3227 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3228 #ifndef OPENSSL_NO_EC
3229 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3235 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3236 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3239 #ifndef OPENSSL_NO_GOST
3240 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3241 mask_k
|= SSL_kGOST
;
3242 mask_a
|= SSL_aGOST12
;
3244 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3245 mask_k
|= SSL_kGOST
;
3246 mask_a
|= SSL_aGOST12
;
3248 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3249 mask_k
|= SSL_kGOST
;
3250 mask_a
|= SSL_aGOST01
;
3261 * If we only have an RSA-PSS certificate allow RSA authentication
3262 * if TLS 1.2 and peer supports it.
3265 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3266 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3267 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3274 mask_a
|= SSL_aNULL
;
3277 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3278 * depending on the key usage extension.
3280 #ifndef OPENSSL_NO_EC
3281 if (have_ecc_cert
) {
3283 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3284 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3285 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3288 mask_a
|= SSL_aECDSA
;
3290 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3291 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3292 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3293 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3294 mask_a
|= SSL_aECDSA
;
3296 /* Allow Ed448 for TLS 1.2 if peer supports it */
3297 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
3298 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
3299 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3300 mask_a
|= SSL_aECDSA
;
3303 #ifndef OPENSSL_NO_EC
3304 mask_k
|= SSL_kECDHE
;
3307 #ifndef OPENSSL_NO_PSK
3310 if (mask_k
& SSL_kRSA
)
3311 mask_k
|= SSL_kRSAPSK
;
3312 if (mask_k
& SSL_kDHE
)
3313 mask_k
|= SSL_kDHEPSK
;
3314 if (mask_k
& SSL_kECDHE
)
3315 mask_k
|= SSL_kECDHEPSK
;
3318 s
->s3
->tmp
.mask_k
= mask_k
;
3319 s
->s3
->tmp
.mask_a
= mask_a
;
3322 #ifndef OPENSSL_NO_EC
3324 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3326 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3327 /* key usage, if present, must allow signing */
3328 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3329 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3330 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3334 return 1; /* all checks are ok */
3339 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3340 size_t *serverinfo_length
)
3342 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3343 *serverinfo_length
= 0;
3345 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3348 *serverinfo
= cpk
->serverinfo
;
3349 *serverinfo_length
= cpk
->serverinfo_length
;
3353 void ssl_update_cache(SSL
*s
, int mode
)
3358 * If the session_id_length is 0, we are not supposed to cache it, and it
3359 * would be rather hard to do anyway :-)
3361 if (s
->session
->session_id_length
== 0)
3365 * If sid_ctx_length is 0 there is no specific application context
3366 * associated with this session, so when we try to resume it and
3367 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3368 * indication that this is actually a session for the proper application
3369 * context, and the *handshake* will fail, not just the resumption attempt.
3370 * Do not cache (on the server) these sessions that are not resumable
3371 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3373 if (s
->server
&& s
->session
->sid_ctx_length
== 0
3374 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
3377 i
= s
->session_ctx
->session_cache_mode
;
3379 && (!s
->hit
|| SSL_IS_TLS13(s
))) {
3381 * Add the session to the internal cache. In server side TLSv1.3 we
3382 * normally don't do this because by default it's a full stateless ticket
3383 * with only a dummy session id so there is no reason to cache it,
3385 * - we are doing early_data, in which case we cache so that we can
3387 * - the application has set a remove_session_cb so needs to know about
3388 * session timeout events
3389 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3391 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
3392 && (!SSL_IS_TLS13(s
)
3394 || (s
->max_early_data
> 0
3395 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
3396 || s
->session_ctx
->remove_session_cb
!= NULL
3397 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
3398 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
3401 * Add the session to the external cache. We do this even in server side
3402 * TLSv1.3 without early data because some applications just want to
3403 * know about the creation of a session and aren't doing a full cache.
3405 if (s
->session_ctx
->new_session_cb
!= NULL
) {
3406 SSL_SESSION_up_ref(s
->session
);
3407 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3408 SSL_SESSION_free(s
->session
);
3412 /* auto flush every 255 connections */
3413 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3414 TSAN_QUALIFIER
int *stat
;
3415 if (mode
& SSL_SESS_CACHE_CLIENT
)
3416 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3418 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3419 if ((tsan_load(stat
) & 0xff) == 0xff)
3420 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3424 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3429 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3434 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3438 if (s
->method
!= meth
) {
3439 const SSL_METHOD
*sm
= s
->method
;
3440 int (*hf
) (SSL
*) = s
->handshake_func
;
3442 if (sm
->version
== meth
->version
)
3447 ret
= s
->method
->ssl_new(s
);
3450 if (hf
== sm
->ssl_connect
)
3451 s
->handshake_func
= meth
->ssl_connect
;
3452 else if (hf
== sm
->ssl_accept
)
3453 s
->handshake_func
= meth
->ssl_accept
;
3458 int SSL_get_error(const SSL
*s
, int i
)
3465 return SSL_ERROR_NONE
;
3468 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3469 * where we do encode the error
3471 if ((l
= ERR_peek_error()) != 0) {
3472 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3473 return SSL_ERROR_SYSCALL
;
3475 return SSL_ERROR_SSL
;
3478 if (SSL_want_read(s
)) {
3479 bio
= SSL_get_rbio(s
);
3480 if (BIO_should_read(bio
))
3481 return SSL_ERROR_WANT_READ
;
3482 else if (BIO_should_write(bio
))
3484 * This one doesn't make too much sense ... We never try to write
3485 * to the rbio, and an application program where rbio and wbio
3486 * are separate couldn't even know what it should wait for.
3487 * However if we ever set s->rwstate incorrectly (so that we have
3488 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3489 * wbio *are* the same, this test works around that bug; so it
3490 * might be safer to keep it.
3492 return SSL_ERROR_WANT_WRITE
;
3493 else if (BIO_should_io_special(bio
)) {
3494 reason
= BIO_get_retry_reason(bio
);
3495 if (reason
== BIO_RR_CONNECT
)
3496 return SSL_ERROR_WANT_CONNECT
;
3497 else if (reason
== BIO_RR_ACCEPT
)
3498 return SSL_ERROR_WANT_ACCEPT
;
3500 return SSL_ERROR_SYSCALL
; /* unknown */
3504 if (SSL_want_write(s
)) {
3505 /* Access wbio directly - in order to use the buffered bio if present */
3507 if (BIO_should_write(bio
))
3508 return SSL_ERROR_WANT_WRITE
;
3509 else if (BIO_should_read(bio
))
3511 * See above (SSL_want_read(s) with BIO_should_write(bio))
3513 return SSL_ERROR_WANT_READ
;
3514 else if (BIO_should_io_special(bio
)) {
3515 reason
= BIO_get_retry_reason(bio
);
3516 if (reason
== BIO_RR_CONNECT
)
3517 return SSL_ERROR_WANT_CONNECT
;
3518 else if (reason
== BIO_RR_ACCEPT
)
3519 return SSL_ERROR_WANT_ACCEPT
;
3521 return SSL_ERROR_SYSCALL
;
3524 if (SSL_want_x509_lookup(s
))
3525 return SSL_ERROR_WANT_X509_LOOKUP
;
3526 if (SSL_want_async(s
))
3527 return SSL_ERROR_WANT_ASYNC
;
3528 if (SSL_want_async_job(s
))
3529 return SSL_ERROR_WANT_ASYNC_JOB
;
3530 if (SSL_want_client_hello_cb(s
))
3531 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3533 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3534 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3535 return SSL_ERROR_ZERO_RETURN
;
3537 return SSL_ERROR_SYSCALL
;
3540 static int ssl_do_handshake_intern(void *vargs
)
3542 struct ssl_async_args
*args
;
3545 args
= (struct ssl_async_args
*)vargs
;
3548 return s
->handshake_func(s
);
3551 int SSL_do_handshake(SSL
*s
)
3555 if (s
->handshake_func
== NULL
) {
3556 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3560 ossl_statem_check_finish_init(s
, -1);
3562 s
->method
->ssl_renegotiate_check(s
, 0);
3564 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3565 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3566 struct ssl_async_args args
;
3570 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3572 ret
= s
->handshake_func(s
);
3578 void SSL_set_accept_state(SSL
*s
)
3582 ossl_statem_clear(s
);
3583 s
->handshake_func
= s
->method
->ssl_accept
;
3587 void SSL_set_connect_state(SSL
*s
)
3591 ossl_statem_clear(s
);
3592 s
->handshake_func
= s
->method
->ssl_connect
;
3596 int ssl_undefined_function(SSL
*s
)
3598 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3602 int ssl_undefined_void_function(void)
3604 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3605 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3609 int ssl_undefined_const_function(const SSL
*s
)
3614 const SSL_METHOD
*ssl_bad_method(int ver
)
3616 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3620 const char *ssl_protocol_to_string(int version
)
3624 case TLS1_3_VERSION
:
3627 case TLS1_2_VERSION
:
3630 case TLS1_1_VERSION
:
3645 case DTLS1_2_VERSION
:
3653 const char *SSL_get_version(const SSL
*s
)
3655 return ssl_protocol_to_string(s
->version
);
3658 SSL
*SSL_dup(SSL
*s
)
3660 STACK_OF(X509_NAME
) *sk
;
3665 /* If we're not quiescent, just up_ref! */
3666 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3667 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3672 * Otherwise, copy configuration state, and session if set.
3674 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3677 if (s
->session
!= NULL
) {
3679 * Arranges to share the same session via up_ref. This "copies"
3680 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3682 if (!SSL_copy_session_id(ret
, s
))
3686 * No session has been established yet, so we have to expect that
3687 * s->cert or ret->cert will be changed later -- they should not both
3688 * point to the same object, and thus we can't use
3689 * SSL_copy_session_id.
3691 if (!SSL_set_ssl_method(ret
, s
->method
))
3694 if (s
->cert
!= NULL
) {
3695 ssl_cert_free(ret
->cert
);
3696 ret
->cert
= ssl_cert_dup(s
->cert
);
3697 if (ret
->cert
== NULL
)
3701 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3702 (int)s
->sid_ctx_length
))
3706 if (!ssl_dane_dup(ret
, s
))
3708 ret
->version
= s
->version
;
3709 ret
->options
= s
->options
;
3710 ret
->mode
= s
->mode
;
3711 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3712 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3713 ret
->msg_callback
= s
->msg_callback
;
3714 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3715 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3716 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3717 ret
->generate_session_id
= s
->generate_session_id
;
3719 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3721 /* copy app data, a little dangerous perhaps */
3722 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3725 /* setup rbio, and wbio */
3726 if (s
->rbio
!= NULL
) {
3727 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3730 if (s
->wbio
!= NULL
) {
3731 if (s
->wbio
!= s
->rbio
) {
3732 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3735 BIO_up_ref(ret
->rbio
);
3736 ret
->wbio
= ret
->rbio
;
3740 ret
->server
= s
->server
;
3741 if (s
->handshake_func
) {
3743 SSL_set_accept_state(ret
);
3745 SSL_set_connect_state(ret
);
3747 ret
->shutdown
= s
->shutdown
;
3750 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3751 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3753 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3755 /* dup the cipher_list and cipher_list_by_id stacks */
3756 if (s
->cipher_list
!= NULL
) {
3757 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3760 if (s
->cipher_list_by_id
!= NULL
)
3761 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3765 /* Dup the client_CA list */
3766 if (s
->ca_names
!= NULL
) {
3767 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3770 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3771 xn
= sk_X509_NAME_value(sk
, i
);
3772 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3785 void ssl_clear_cipher_ctx(SSL
*s
)
3787 if (s
->enc_read_ctx
!= NULL
) {
3788 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3789 s
->enc_read_ctx
= NULL
;
3791 if (s
->enc_write_ctx
!= NULL
) {
3792 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3793 s
->enc_write_ctx
= NULL
;
3795 #ifndef OPENSSL_NO_COMP
3796 COMP_CTX_free(s
->expand
);
3798 COMP_CTX_free(s
->compress
);
3803 X509
*SSL_get_certificate(const SSL
*s
)
3805 if (s
->cert
!= NULL
)
3806 return s
->cert
->key
->x509
;
3811 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3813 if (s
->cert
!= NULL
)
3814 return s
->cert
->key
->privatekey
;
3819 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3821 if (ctx
->cert
!= NULL
)
3822 return ctx
->cert
->key
->x509
;
3827 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3829 if (ctx
->cert
!= NULL
)
3830 return ctx
->cert
->key
->privatekey
;
3835 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3837 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3838 return s
->session
->cipher
;
3842 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
3844 return s
->s3
->tmp
.new_cipher
;
3847 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3849 #ifndef OPENSSL_NO_COMP
3850 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3856 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3858 #ifndef OPENSSL_NO_COMP
3859 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3865 int ssl_init_wbio_buffer(SSL
*s
)
3869 if (s
->bbio
!= NULL
) {
3870 /* Already buffered. */
3874 bbio
= BIO_new(BIO_f_buffer());
3875 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3877 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3881 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3886 int ssl_free_wbio_buffer(SSL
*s
)
3888 /* callers ensure s is never null */
3889 if (s
->bbio
== NULL
)
3892 s
->wbio
= BIO_pop(s
->wbio
);
3899 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3901 ctx
->quiet_shutdown
= mode
;
3904 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3906 return ctx
->quiet_shutdown
;
3909 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3911 s
->quiet_shutdown
= mode
;
3914 int SSL_get_quiet_shutdown(const SSL
*s
)
3916 return s
->quiet_shutdown
;
3919 void SSL_set_shutdown(SSL
*s
, int mode
)
3924 int SSL_get_shutdown(const SSL
*s
)
3929 int SSL_version(const SSL
*s
)
3934 int SSL_client_version(const SSL
*s
)
3936 return s
->client_version
;
3939 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3944 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3947 if (ssl
->ctx
== ctx
)
3950 ctx
= ssl
->session_ctx
;
3951 new_cert
= ssl_cert_dup(ctx
->cert
);
3952 if (new_cert
== NULL
) {
3956 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
3957 ssl_cert_free(new_cert
);
3961 ssl_cert_free(ssl
->cert
);
3962 ssl
->cert
= new_cert
;
3965 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3966 * so setter APIs must prevent invalid lengths from entering the system.
3968 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
3972 * If the session ID context matches that of the parent SSL_CTX,
3973 * inherit it from the new SSL_CTX as well. If however the context does
3974 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3975 * leave it unchanged.
3977 if ((ssl
->ctx
!= NULL
) &&
3978 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3979 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3980 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3981 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3984 SSL_CTX_up_ref(ctx
);
3985 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3991 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3993 return X509_STORE_set_default_paths(ctx
->cert_store
);
3996 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3998 X509_LOOKUP
*lookup
;
4000 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4003 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4005 /* Clear any errors if the default directory does not exist */
4011 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4013 X509_LOOKUP
*lookup
;
4015 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4019 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4021 /* Clear any errors if the default file does not exist */
4027 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
4030 return X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
);
4033 void SSL_set_info_callback(SSL
*ssl
,
4034 void (*cb
) (const SSL
*ssl
, int type
, int val
))
4036 ssl
->info_callback
= cb
;
4040 * One compiler (Diab DCC) doesn't like argument names in returned function
4043 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
4046 return ssl
->info_callback
;
4049 void SSL_set_verify_result(SSL
*ssl
, long arg
)
4051 ssl
->verify_result
= arg
;
4054 long SSL_get_verify_result(const SSL
*ssl
)
4056 return ssl
->verify_result
;
4059 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4062 return sizeof(ssl
->s3
->client_random
);
4063 if (outlen
> sizeof(ssl
->s3
->client_random
))
4064 outlen
= sizeof(ssl
->s3
->client_random
);
4065 memcpy(out
, ssl
->s3
->client_random
, outlen
);
4069 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4072 return sizeof(ssl
->s3
->server_random
);
4073 if (outlen
> sizeof(ssl
->s3
->server_random
))
4074 outlen
= sizeof(ssl
->s3
->server_random
);
4075 memcpy(out
, ssl
->s3
->server_random
, outlen
);
4079 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4080 unsigned char *out
, size_t outlen
)
4083 return session
->master_key_length
;
4084 if (outlen
> session
->master_key_length
)
4085 outlen
= session
->master_key_length
;
4086 memcpy(out
, session
->master_key
, outlen
);
4090 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4093 if (len
> sizeof(sess
->master_key
))
4096 memcpy(sess
->master_key
, in
, len
);
4097 sess
->master_key_length
= len
;
4102 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4104 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4107 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4109 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4112 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4114 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4117 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4119 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4122 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4124 return ctx
->cert_store
;
4127 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4129 X509_STORE_free(ctx
->cert_store
);
4130 ctx
->cert_store
= store
;
4133 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4136 X509_STORE_up_ref(store
);
4137 SSL_CTX_set_cert_store(ctx
, store
);
4140 int SSL_want(const SSL
*s
)
4146 * \brief Set the callback for generating temporary DH keys.
4147 * \param ctx the SSL context.
4148 * \param dh the callback
4151 #ifndef OPENSSL_NO_DH
4152 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4153 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4156 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4159 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4162 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4166 #ifndef OPENSSL_NO_PSK
4167 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4169 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4170 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4173 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4174 if (identity_hint
!= NULL
) {
4175 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4176 if (ctx
->cert
->psk_identity_hint
== NULL
)
4179 ctx
->cert
->psk_identity_hint
= NULL
;
4183 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4188 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4189 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4192 OPENSSL_free(s
->cert
->psk_identity_hint
);
4193 if (identity_hint
!= NULL
) {
4194 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4195 if (s
->cert
->psk_identity_hint
== NULL
)
4198 s
->cert
->psk_identity_hint
= NULL
;
4202 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4204 if (s
== NULL
|| s
->session
== NULL
)
4206 return s
->session
->psk_identity_hint
;
4209 const char *SSL_get_psk_identity(const SSL
*s
)
4211 if (s
== NULL
|| s
->session
== NULL
)
4213 return s
->session
->psk_identity
;
4216 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4218 s
->psk_client_callback
= cb
;
4221 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4223 ctx
->psk_client_callback
= cb
;
4226 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4228 s
->psk_server_callback
= cb
;
4231 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4233 ctx
->psk_server_callback
= cb
;
4237 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4239 s
->psk_find_session_cb
= cb
;
4242 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4243 SSL_psk_find_session_cb_func cb
)
4245 ctx
->psk_find_session_cb
= cb
;
4248 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4250 s
->psk_use_session_cb
= cb
;
4253 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4254 SSL_psk_use_session_cb_func cb
)
4256 ctx
->psk_use_session_cb
= cb
;
4259 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4260 void (*cb
) (int write_p
, int version
,
4261 int content_type
, const void *buf
,
4262 size_t len
, SSL
*ssl
, void *arg
))
4264 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4267 void SSL_set_msg_callback(SSL
*ssl
,
4268 void (*cb
) (int write_p
, int version
,
4269 int content_type
, const void *buf
,
4270 size_t len
, SSL
*ssl
, void *arg
))
4272 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4275 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4276 int (*cb
) (SSL
*ssl
,
4280 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4281 (void (*)(void))cb
);
4284 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4285 int (*cb
) (SSL
*ssl
,
4286 int is_forward_secure
))
4288 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4289 (void (*)(void))cb
);
4292 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4293 size_t (*cb
) (SSL
*ssl
, int type
,
4294 size_t len
, void *arg
))
4296 ctx
->record_padding_cb
= cb
;
4299 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4301 ctx
->record_padding_arg
= arg
;
4304 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
4306 return ctx
->record_padding_arg
;
4309 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4311 /* block size of 0 or 1 is basically no padding */
4312 if (block_size
== 1)
4313 ctx
->block_padding
= 0;
4314 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4315 ctx
->block_padding
= block_size
;
4321 void SSL_set_record_padding_callback(SSL
*ssl
,
4322 size_t (*cb
) (SSL
*ssl
, int type
,
4323 size_t len
, void *arg
))
4325 ssl
->record_padding_cb
= cb
;
4328 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4330 ssl
->record_padding_arg
= arg
;
4333 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
4335 return ssl
->record_padding_arg
;
4338 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4340 /* block size of 0 or 1 is basically no padding */
4341 if (block_size
== 1)
4342 ssl
->block_padding
= 0;
4343 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4344 ssl
->block_padding
= block_size
;
4350 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
4352 s
->num_tickets
= num_tickets
;
4357 size_t SSL_get_num_tickets(SSL
*s
)
4359 return s
->num_tickets
;
4362 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
4364 ctx
->num_tickets
= num_tickets
;
4369 size_t SSL_CTX_get_num_tickets(SSL_CTX
*ctx
)
4371 return ctx
->num_tickets
;
4375 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4376 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4377 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4378 * Returns the newly allocated ctx;
4381 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4383 ssl_clear_hash_ctx(hash
);
4384 *hash
= EVP_MD_CTX_new();
4385 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4386 EVP_MD_CTX_free(*hash
);
4393 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4396 EVP_MD_CTX_free(*hash
);
4400 /* Retrieve handshake hashes */
4401 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4404 EVP_MD_CTX
*ctx
= NULL
;
4405 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4406 int hashleni
= EVP_MD_CTX_size(hdgst
);
4409 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4410 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4411 ERR_R_INTERNAL_ERROR
);
4415 ctx
= EVP_MD_CTX_new();
4419 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4420 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4421 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4422 ERR_R_INTERNAL_ERROR
);
4426 *hashlen
= hashleni
;
4430 EVP_MD_CTX_free(ctx
);
4434 int SSL_session_reused(SSL
*s
)
4439 int SSL_is_server(const SSL
*s
)
4444 #if OPENSSL_API_COMPAT < 0x10100000L
4445 void SSL_set_debug(SSL
*s
, int debug
)
4447 /* Old function was do-nothing anyway... */
4453 void SSL_set_security_level(SSL
*s
, int level
)
4455 s
->cert
->sec_level
= level
;
4458 int SSL_get_security_level(const SSL
*s
)
4460 return s
->cert
->sec_level
;
4463 void SSL_set_security_callback(SSL
*s
,
4464 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4465 int op
, int bits
, int nid
,
4466 void *other
, void *ex
))
4468 s
->cert
->sec_cb
= cb
;
4471 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4472 const SSL_CTX
*ctx
, int op
,
4473 int bits
, int nid
, void *other
,
4475 return s
->cert
->sec_cb
;
4478 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4480 s
->cert
->sec_ex
= ex
;
4483 void *SSL_get0_security_ex_data(const SSL
*s
)
4485 return s
->cert
->sec_ex
;
4488 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4490 ctx
->cert
->sec_level
= level
;
4493 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4495 return ctx
->cert
->sec_level
;
4498 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4499 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4500 int op
, int bits
, int nid
,
4501 void *other
, void *ex
))
4503 ctx
->cert
->sec_cb
= cb
;
4506 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4512 return ctx
->cert
->sec_cb
;
4515 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4517 ctx
->cert
->sec_ex
= ex
;
4520 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4522 return ctx
->cert
->sec_ex
;
4526 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4527 * can return unsigned long, instead of the generic long return value from the
4528 * control interface.
4530 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4532 return ctx
->options
;
4535 unsigned long SSL_get_options(const SSL
*s
)
4540 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4542 return ctx
->options
|= op
;
4545 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4547 return s
->options
|= op
;
4550 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4552 return ctx
->options
&= ~op
;
4555 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4557 return s
->options
&= ~op
;
4560 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4562 return s
->verified_chain
;
4565 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4567 #ifndef OPENSSL_NO_CT
4570 * Moves SCTs from the |src| stack to the |dst| stack.
4571 * The source of each SCT will be set to |origin|.
4572 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4574 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4576 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4577 sct_source_t origin
)
4583 *dst
= sk_SCT_new_null();
4585 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4590 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4591 if (SCT_set_source(sct
, origin
) != 1)
4594 if (sk_SCT_push(*dst
, sct
) <= 0)
4602 sk_SCT_push(src
, sct
); /* Put the SCT back */
4607 * Look for data collected during ServerHello and parse if found.
4608 * Returns the number of SCTs extracted.
4610 static int ct_extract_tls_extension_scts(SSL
*s
)
4612 int scts_extracted
= 0;
4614 if (s
->ext
.scts
!= NULL
) {
4615 const unsigned char *p
= s
->ext
.scts
;
4616 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4618 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4620 SCT_LIST_free(scts
);
4623 return scts_extracted
;
4627 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4628 * contains an SCT X509 extension. They will be stored in |s->scts|.
4630 * - The number of SCTs extracted, assuming an OCSP response exists.
4631 * - 0 if no OCSP response exists or it contains no SCTs.
4632 * - A negative integer if an error occurs.
4634 static int ct_extract_ocsp_response_scts(SSL
*s
)
4636 # ifndef OPENSSL_NO_OCSP
4637 int scts_extracted
= 0;
4638 const unsigned char *p
;
4639 OCSP_BASICRESP
*br
= NULL
;
4640 OCSP_RESPONSE
*rsp
= NULL
;
4641 STACK_OF(SCT
) *scts
= NULL
;
4644 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4647 p
= s
->ext
.ocsp
.resp
;
4648 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4652 br
= OCSP_response_get1_basic(rsp
);
4656 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4657 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4663 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4665 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4666 if (scts_extracted
< 0)
4670 SCT_LIST_free(scts
);
4671 OCSP_BASICRESP_free(br
);
4672 OCSP_RESPONSE_free(rsp
);
4673 return scts_extracted
;
4675 /* Behave as if no OCSP response exists */
4681 * Attempts to extract SCTs from the peer certificate.
4682 * Return the number of SCTs extracted, or a negative integer if an error
4685 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4687 int scts_extracted
= 0;
4688 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4691 STACK_OF(SCT
) *scts
=
4692 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4695 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4697 SCT_LIST_free(scts
);
4700 return scts_extracted
;
4704 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4705 * response (if it exists) and X509v3 extensions in the certificate.
4706 * Returns NULL if an error occurs.
4708 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4710 if (!s
->scts_parsed
) {
4711 if (ct_extract_tls_extension_scts(s
) < 0 ||
4712 ct_extract_ocsp_response_scts(s
) < 0 ||
4713 ct_extract_x509v3_extension_scts(s
) < 0)
4723 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4724 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4729 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4730 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4732 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4735 for (i
= 0; i
< count
; ++i
) {
4736 SCT
*sct
= sk_SCT_value(scts
, i
);
4737 int status
= SCT_get_validation_status(sct
);
4739 if (status
== SCT_VALIDATION_STATUS_VALID
)
4742 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4746 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4750 * Since code exists that uses the custom extension handler for CT, look
4751 * for this and throw an error if they have already registered to use CT.
4753 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4754 TLSEXT_TYPE_signed_certificate_timestamp
))
4756 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4757 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4761 if (callback
!= NULL
) {
4763 * If we are validating CT, then we MUST accept SCTs served via OCSP
4765 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4769 s
->ct_validation_callback
= callback
;
4770 s
->ct_validation_callback_arg
= arg
;
4775 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4776 ssl_ct_validation_cb callback
, void *arg
)
4779 * Since code exists that uses the custom extension handler for CT, look for
4780 * this and throw an error if they have already registered to use CT.
4782 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4783 TLSEXT_TYPE_signed_certificate_timestamp
))
4785 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4786 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4790 ctx
->ct_validation_callback
= callback
;
4791 ctx
->ct_validation_callback_arg
= arg
;
4795 int SSL_ct_is_enabled(const SSL
*s
)
4797 return s
->ct_validation_callback
!= NULL
;
4800 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4802 return ctx
->ct_validation_callback
!= NULL
;
4805 int ssl_validate_ct(SSL
*s
)
4808 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4810 SSL_DANE
*dane
= &s
->dane
;
4811 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4812 const STACK_OF(SCT
) *scts
;
4815 * If no callback is set, the peer is anonymous, or its chain is invalid,
4816 * skip SCT validation - just return success. Applications that continue
4817 * handshakes without certificates, with unverified chains, or pinned leaf
4818 * certificates are outside the scope of the WebPKI and CT.
4820 * The above exclusions notwithstanding the vast majority of peers will
4821 * have rather ordinary certificate chains validated by typical
4822 * applications that perform certificate verification and therefore will
4823 * process SCTs when enabled.
4825 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4826 s
->verify_result
!= X509_V_OK
||
4827 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4831 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4832 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4834 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4835 switch (dane
->mtlsa
->usage
) {
4836 case DANETLS_USAGE_DANE_TA
:
4837 case DANETLS_USAGE_DANE_EE
:
4842 ctx
= CT_POLICY_EVAL_CTX_new();
4844 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
4845 ERR_R_MALLOC_FAILURE
);
4849 issuer
= sk_X509_value(s
->verified_chain
, 1);
4850 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4851 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4852 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4853 CT_POLICY_EVAL_CTX_set_time(
4854 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4856 scts
= SSL_get0_peer_scts(s
);
4859 * This function returns success (> 0) only when all the SCTs are valid, 0
4860 * when some are invalid, and < 0 on various internal errors (out of
4861 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4862 * reason to abort the handshake, that decision is up to the callback.
4863 * Therefore, we error out only in the unexpected case that the return
4864 * value is negative.
4866 * XXX: One might well argue that the return value of this function is an
4867 * unfortunate design choice. Its job is only to determine the validation
4868 * status of each of the provided SCTs. So long as it correctly separates
4869 * the wheat from the chaff it should return success. Failure in this case
4870 * ought to correspond to an inability to carry out its duties.
4872 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4873 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4874 SSL_R_SCT_VERIFICATION_FAILED
);
4878 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4880 ret
= 0; /* This function returns 0 on failure */
4882 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4883 SSL_R_CALLBACK_FAILED
);
4886 CT_POLICY_EVAL_CTX_free(ctx
);
4888 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4889 * failure return code here. Also the application may wish the complete
4890 * the handshake, and then disconnect cleanly at a higher layer, after
4891 * checking the verification status of the completed connection.
4893 * We therefore force a certificate verification failure which will be
4894 * visible via SSL_get_verify_result() and cached as part of any resumed
4897 * Note: the permissive callback is for information gathering only, always
4898 * returns success, and does not affect verification status. Only the
4899 * strict callback or a custom application-specified callback can trigger
4900 * connection failure or record a verification error.
4903 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4907 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4909 switch (validation_mode
) {
4911 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4913 case SSL_CT_VALIDATION_PERMISSIVE
:
4914 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4915 case SSL_CT_VALIDATION_STRICT
:
4916 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4920 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4922 switch (validation_mode
) {
4924 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4926 case SSL_CT_VALIDATION_PERMISSIVE
:
4927 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4928 case SSL_CT_VALIDATION_STRICT
:
4929 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4933 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4935 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4938 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4940 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4943 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4945 CTLOG_STORE_free(ctx
->ctlog_store
);
4946 ctx
->ctlog_store
= logs
;
4949 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4951 return ctx
->ctlog_store
;
4954 #endif /* OPENSSL_NO_CT */
4956 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
4959 c
->client_hello_cb
= cb
;
4960 c
->client_hello_cb_arg
= arg
;
4963 int SSL_client_hello_isv2(SSL
*s
)
4965 if (s
->clienthello
== NULL
)
4967 return s
->clienthello
->isv2
;
4970 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
4972 if (s
->clienthello
== NULL
)
4974 return s
->clienthello
->legacy_version
;
4977 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
4979 if (s
->clienthello
== NULL
)
4982 *out
= s
->clienthello
->random
;
4983 return SSL3_RANDOM_SIZE
;
4986 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
4988 if (s
->clienthello
== NULL
)
4991 *out
= s
->clienthello
->session_id
;
4992 return s
->clienthello
->session_id_len
;
4995 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
4997 if (s
->clienthello
== NULL
)
5000 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
5001 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
5004 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
5006 if (s
->clienthello
== NULL
)
5009 *out
= s
->clienthello
->compressions
;
5010 return s
->clienthello
->compressions_len
;
5013 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
5019 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
5021 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5022 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5026 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
5027 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT
,
5028 ERR_R_MALLOC_FAILURE
);
5031 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5032 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5034 if (ext
->received_order
>= num
)
5036 present
[ext
->received_order
] = ext
->type
;
5043 OPENSSL_free(present
);
5047 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
5053 if (s
->clienthello
== NULL
)
5055 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
5056 r
= s
->clienthello
->pre_proc_exts
+ i
;
5057 if (r
->present
&& r
->type
== type
) {
5059 *out
= PACKET_data(&r
->data
);
5061 *outlen
= PACKET_remaining(&r
->data
);
5068 int SSL_free_buffers(SSL
*ssl
)
5070 RECORD_LAYER
*rl
= &ssl
->rlayer
;
5072 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
5075 RECORD_LAYER_release(rl
);
5079 int SSL_alloc_buffers(SSL
*ssl
)
5081 return ssl3_setup_buffers(ssl
);
5084 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
5086 ctx
->keylog_callback
= cb
;
5089 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
5091 return ctx
->keylog_callback
;
5094 static int nss_keylog_int(const char *prefix
,
5096 const uint8_t *parameter_1
,
5097 size_t parameter_1_len
,
5098 const uint8_t *parameter_2
,
5099 size_t parameter_2_len
)
5102 char *cursor
= NULL
;
5107 if (ssl
->ctx
->keylog_callback
== NULL
)
5111 * Our output buffer will contain the following strings, rendered with
5112 * space characters in between, terminated by a NULL character: first the
5113 * prefix, then the first parameter, then the second parameter. The
5114 * meaning of each parameter depends on the specific key material being
5115 * logged. Note that the first and second parameters are encoded in
5116 * hexadecimal, so we need a buffer that is twice their lengths.
5118 prefix_len
= strlen(prefix
);
5119 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
5120 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5121 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5122 ERR_R_MALLOC_FAILURE
);
5126 strcpy(cursor
, prefix
);
5127 cursor
+= prefix_len
;
5130 for (i
= 0; i
< parameter_1_len
; i
++) {
5131 sprintf(cursor
, "%02x", parameter_1
[i
]);
5136 for (i
= 0; i
< parameter_2_len
; i
++) {
5137 sprintf(cursor
, "%02x", parameter_2
[i
]);
5142 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5143 OPENSSL_clear_free(out
, out_len
);
5148 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5149 const uint8_t *encrypted_premaster
,
5150 size_t encrypted_premaster_len
,
5151 const uint8_t *premaster
,
5152 size_t premaster_len
)
5154 if (encrypted_premaster_len
< 8) {
5155 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5156 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5160 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5161 return nss_keylog_int("RSA",
5163 encrypted_premaster
,
5169 int ssl_log_secret(SSL
*ssl
,
5171 const uint8_t *secret
,
5174 return nss_keylog_int(label
,
5176 ssl
->s3
->client_random
,
5182 #define SSLV2_CIPHER_LEN 3
5184 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5188 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5190 if (PACKET_remaining(cipher_suites
) == 0) {
5191 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5192 SSL_R_NO_CIPHERS_SPECIFIED
);
5196 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5197 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5198 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5202 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5203 s
->s3
->tmp
.ciphers_raw
= NULL
;
5204 s
->s3
->tmp
.ciphers_rawlen
= 0;
5207 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5208 PACKET sslv2ciphers
= *cipher_suites
;
5209 unsigned int leadbyte
;
5213 * We store the raw ciphers list in SSLv3+ format so we need to do some
5214 * preprocessing to convert the list first. If there are any SSLv2 only
5215 * ciphersuites with a non-zero leading byte then we are going to
5216 * slightly over allocate because we won't store those. But that isn't a
5219 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5220 s
->s3
->tmp
.ciphers_raw
= raw
;
5222 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5223 ERR_R_MALLOC_FAILURE
);
5226 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
5227 PACKET_remaining(&sslv2ciphers
) > 0;
5228 raw
+= TLS_CIPHER_LEN
) {
5229 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5231 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5234 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5235 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5237 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5238 s
->s3
->tmp
.ciphers_raw
= NULL
;
5239 s
->s3
->tmp
.ciphers_rawlen
= 0;
5243 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5245 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
5246 &s
->s3
->tmp
.ciphers_rawlen
)) {
5247 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5248 ERR_R_INTERNAL_ERROR
);
5254 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5255 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5256 STACK_OF(SSL_CIPHER
) **scsvs
)
5260 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5262 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5265 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5266 STACK_OF(SSL_CIPHER
) **skp
,
5267 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5268 int sslv2format
, int fatal
)
5270 const SSL_CIPHER
*c
;
5271 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5272 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5274 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5275 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5277 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5279 if (PACKET_remaining(cipher_suites
) == 0) {
5281 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5282 SSL_R_NO_CIPHERS_SPECIFIED
);
5284 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5288 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5290 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5291 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5293 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5294 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5298 sk
= sk_SSL_CIPHER_new_null();
5299 scsvs
= sk_SSL_CIPHER_new_null();
5300 if (sk
== NULL
|| scsvs
== NULL
) {
5302 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5303 ERR_R_MALLOC_FAILURE
);
5305 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5309 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5311 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5312 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5313 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5315 if (sslv2format
&& cipher
[0] != '\0')
5318 /* For SSLv2-compat, ignore leading 0-byte. */
5319 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5321 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5322 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5324 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5325 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5327 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5332 if (PACKET_remaining(cipher_suites
) > 0) {
5334 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5337 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5344 sk_SSL_CIPHER_free(sk
);
5345 if (scsvs_out
!= NULL
)
5348 sk_SSL_CIPHER_free(scsvs
);
5351 sk_SSL_CIPHER_free(sk
);
5352 sk_SSL_CIPHER_free(scsvs
);
5356 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5358 ctx
->max_early_data
= max_early_data
;
5363 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5365 return ctx
->max_early_data
;
5368 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5370 s
->max_early_data
= max_early_data
;
5375 uint32_t SSL_get_max_early_data(const SSL
*s
)
5377 return s
->max_early_data
;
5380 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
5382 ctx
->recv_max_early_data
= recv_max_early_data
;
5387 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
5389 return ctx
->recv_max_early_data
;
5392 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
5394 s
->recv_max_early_data
= recv_max_early_data
;
5399 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
5401 return s
->recv_max_early_data
;
5404 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5406 /* Return any active Max Fragment Len extension */
5407 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5408 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5410 /* return current SSL connection setting */
5411 return ssl
->max_send_fragment
;
5414 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5416 /* Return a value regarding an active Max Fragment Len extension */
5417 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5418 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5419 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5421 /* else limit |split_send_fragment| to current |max_send_fragment| */
5422 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5423 return ssl
->max_send_fragment
;
5425 /* return current SSL connection setting */
5426 return ssl
->split_send_fragment
;
5429 int SSL_stateless(SSL
*s
)
5433 /* Ensure there is no state left over from a previous invocation */
5439 s
->s3
->flags
|= TLS1_FLAGS_STATELESS
;
5440 ret
= SSL_accept(s
);
5441 s
->s3
->flags
&= ~TLS1_FLAGS_STATELESS
;
5443 if (ret
> 0 && s
->ext
.cookieok
)
5446 if (s
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(s
))
5452 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
5454 ctx
->pha_enabled
= val
;
5457 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
5459 ssl
->pha_enabled
= val
;
5462 int SSL_verify_client_post_handshake(SSL
*ssl
)
5464 if (!SSL_IS_TLS13(ssl
)) {
5465 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5469 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5473 if (!SSL_is_init_finished(ssl
)) {
5474 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5478 switch (ssl
->post_handshake_auth
) {
5480 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5483 case SSL_PHA_EXT_SENT
:
5484 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5486 case SSL_PHA_EXT_RECEIVED
:
5488 case SSL_PHA_REQUEST_PENDING
:
5489 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5491 case SSL_PHA_REQUESTED
:
5492 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5496 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5498 /* checks verify_mode and algorithm_auth */
5499 if (!send_certificate_request(ssl
)) {
5500 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5501 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5505 ossl_statem_set_in_init(ssl
, 1);
5509 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
5510 SSL_CTX_generate_session_ticket_fn gen_cb
,
5511 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
5514 ctx
->generate_ticket_cb
= gen_cb
;
5515 ctx
->decrypt_ticket_cb
= dec_cb
;
5516 ctx
->ticket_cb_data
= arg
;
5520 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
5521 SSL_allow_early_data_cb_fn cb
,
5524 ctx
->allow_early_data_cb
= cb
;
5525 ctx
->allow_early_data_cb_data
= arg
;
5528 void SSL_set_allow_early_data_cb(SSL
*s
,
5529 SSL_allow_early_data_cb_fn cb
,
5532 s
->allow_early_data_cb
= cb
;
5533 s
->allow_early_data_cb_data
= arg
;