2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
12 /* We need to use some engine deprecated APIs */
13 #define OPENSSL_SUPPRESS_DEPRECATED
16 #include "ssl_local.h"
18 #include <openssl/objects.h>
19 #include <openssl/x509v3.h>
20 #include <openssl/rand.h>
21 #include <openssl/ocsp.h>
22 #include <openssl/dh.h>
23 #include <openssl/engine.h>
24 #include <openssl/async.h>
25 #include <openssl/ct.h>
26 #include <openssl/trace.h>
27 #include "internal/cryptlib.h"
28 #include "internal/refcount.h"
29 #include "internal/ktls.h"
33 static int ssl_undefined_function_1(SSL
*ssl
, SSL3_RECORD
*r
, size_t s
, int t
,
34 SSL_MAC_BUF
*mac
, size_t macsize
)
36 return ssl_undefined_function(ssl
);
39 static int ssl_undefined_function_2(SSL
*ssl
, SSL3_RECORD
*r
, unsigned char *s
,
42 return ssl_undefined_function(ssl
);
45 static int ssl_undefined_function_3(SSL
*ssl
, unsigned char *r
,
46 unsigned char *s
, size_t t
, size_t *u
)
48 return ssl_undefined_function(ssl
);
51 static int ssl_undefined_function_4(SSL
*ssl
, int r
)
53 return ssl_undefined_function(ssl
);
56 static size_t ssl_undefined_function_5(SSL
*ssl
, const char *r
, size_t s
,
59 return ssl_undefined_function(ssl
);
62 static int ssl_undefined_function_6(int r
)
64 return ssl_undefined_function(NULL
);
67 static int ssl_undefined_function_7(SSL
*ssl
, unsigned char *r
, size_t s
,
68 const char *t
, size_t u
,
69 const unsigned char *v
, size_t w
, int x
)
71 return ssl_undefined_function(ssl
);
74 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
75 ssl_undefined_function_1
,
76 ssl_undefined_function_2
,
77 ssl_undefined_function
,
78 ssl_undefined_function_3
,
79 ssl_undefined_function_4
,
80 ssl_undefined_function_5
,
81 NULL
, /* client_finished_label */
82 0, /* client_finished_label_len */
83 NULL
, /* server_finished_label */
84 0, /* server_finished_label_len */
85 ssl_undefined_function_6
,
86 ssl_undefined_function_7
,
89 struct ssl_async_args
{
93 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
95 int (*func_read
) (SSL
*, void *, size_t, size_t *);
96 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
97 int (*func_other
) (SSL
*);
101 static const struct {
107 DANETLS_MATCHING_FULL
, 0, NID_undef
110 DANETLS_MATCHING_2256
, 1, NID_sha256
113 DANETLS_MATCHING_2512
, 2, NID_sha512
117 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
119 const EVP_MD
**mdevp
;
121 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
122 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
125 if (dctx
->mdevp
!= NULL
)
128 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
129 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
131 if (mdord
== NULL
|| mdevp
== NULL
) {
134 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
138 /* Install default entries */
139 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
142 if (dane_mds
[i
].nid
== NID_undef
||
143 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
145 mdevp
[dane_mds
[i
].mtype
] = md
;
146 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
156 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
158 OPENSSL_free(dctx
->mdevp
);
161 OPENSSL_free(dctx
->mdord
);
166 static void tlsa_free(danetls_record
*t
)
170 OPENSSL_free(t
->data
);
171 EVP_PKEY_free(t
->spki
);
175 static void dane_final(SSL_DANE
*dane
)
177 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
180 sk_X509_pop_free(dane
->certs
, X509_free
);
183 X509_free(dane
->mcert
);
191 * dane_copy - Copy dane configuration, sans verification state.
193 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
198 if (!DANETLS_ENABLED(&from
->dane
))
201 num
= sk_danetls_record_num(from
->dane
.trecs
);
202 dane_final(&to
->dane
);
203 to
->dane
.flags
= from
->dane
.flags
;
204 to
->dane
.dctx
= &to
->ctx
->dane
;
205 to
->dane
.trecs
= sk_danetls_record_new_reserve(NULL
, num
);
207 if (to
->dane
.trecs
== NULL
) {
208 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
212 for (i
= 0; i
< num
; ++i
) {
213 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
215 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
216 t
->data
, t
->dlen
) <= 0)
222 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
223 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
227 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
228 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
232 if (mtype
> dctx
->mdmax
) {
233 const EVP_MD
**mdevp
;
235 int n
= ((int)mtype
) + 1;
237 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
239 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
244 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
246 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
251 /* Zero-fill any gaps */
252 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
260 dctx
->mdevp
[mtype
] = md
;
261 /* Coerce ordinal of disabled matching types to 0 */
262 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
267 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
269 if (mtype
> dane
->dctx
->mdmax
)
271 return dane
->dctx
->mdevp
[mtype
];
274 static int dane_tlsa_add(SSL_DANE
*dane
,
277 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
280 const EVP_MD
*md
= NULL
;
281 int ilen
= (int)dlen
;
285 if (dane
->trecs
== NULL
) {
286 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
290 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
291 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
295 if (usage
> DANETLS_USAGE_LAST
) {
296 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
300 if (selector
> DANETLS_SELECTOR_LAST
) {
301 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
305 if (mtype
!= DANETLS_MATCHING_FULL
) {
306 md
= tlsa_md_get(dane
, mtype
);
308 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
313 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
314 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
318 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
322 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
323 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
328 t
->selector
= selector
;
330 t
->data
= OPENSSL_malloc(dlen
);
331 if (t
->data
== NULL
) {
333 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
336 memcpy(t
->data
, data
, dlen
);
339 /* Validate and cache full certificate or public key */
340 if (mtype
== DANETLS_MATCHING_FULL
) {
341 const unsigned char *p
= data
;
343 EVP_PKEY
*pkey
= NULL
;
346 case DANETLS_SELECTOR_CERT
:
347 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
348 dlen
!= (size_t)(p
- data
)) {
350 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
353 if (X509_get0_pubkey(cert
) == NULL
) {
355 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
359 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
365 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
366 * records that contain full certificates of trust-anchors that are
367 * not present in the wire chain. For usage PKIX-TA(0), we augment
368 * the chain with untrusted Full(0) certificates from DNS, in case
369 * they are missing from the chain.
371 if ((dane
->certs
== NULL
&&
372 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
373 !sk_X509_push(dane
->certs
, cert
)) {
374 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
381 case DANETLS_SELECTOR_SPKI
:
382 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
383 dlen
!= (size_t)(p
- data
)) {
385 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
390 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
391 * records that contain full bare keys of trust-anchors that are
392 * not present in the wire chain.
394 if (usage
== DANETLS_USAGE_DANE_TA
)
403 * Find the right insertion point for the new record.
405 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
406 * they can be processed first, as they require no chain building, and no
407 * expiration or hostname checks. Because DANE-EE(3) is numerically
408 * largest, this is accomplished via descending sort by "usage".
410 * We also sort in descending order by matching ordinal to simplify
411 * the implementation of digest agility in the verification code.
413 * The choice of order for the selector is not significant, so we
414 * use the same descending order for consistency.
416 num
= sk_danetls_record_num(dane
->trecs
);
417 for (i
= 0; i
< num
; ++i
) {
418 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
420 if (rec
->usage
> usage
)
422 if (rec
->usage
< usage
)
424 if (rec
->selector
> selector
)
426 if (rec
->selector
< selector
)
428 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
433 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
435 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
438 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
444 * Return 0 if there is only one version configured and it was disabled
445 * at configure time. Return 1 otherwise.
447 static int ssl_check_allowed_versions(int min_version
, int max_version
)
449 int minisdtls
= 0, maxisdtls
= 0;
451 /* Figure out if we're doing DTLS versions or TLS versions */
452 if (min_version
== DTLS1_BAD_VER
453 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
455 if (max_version
== DTLS1_BAD_VER
456 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
458 /* A wildcard version of 0 could be DTLS or TLS. */
459 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
460 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
461 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
465 if (minisdtls
|| maxisdtls
) {
466 /* Do DTLS version checks. */
467 if (min_version
== 0)
468 /* Ignore DTLS1_BAD_VER */
469 min_version
= DTLS1_VERSION
;
470 if (max_version
== 0)
471 max_version
= DTLS1_2_VERSION
;
472 #ifdef OPENSSL_NO_DTLS1_2
473 if (max_version
== DTLS1_2_VERSION
)
474 max_version
= DTLS1_VERSION
;
476 #ifdef OPENSSL_NO_DTLS1
477 if (min_version
== DTLS1_VERSION
)
478 min_version
= DTLS1_2_VERSION
;
480 /* Done massaging versions; do the check. */
482 #ifdef OPENSSL_NO_DTLS1
483 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
484 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
486 #ifdef OPENSSL_NO_DTLS1_2
487 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
488 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
493 /* Regular TLS version checks. */
494 if (min_version
== 0)
495 min_version
= SSL3_VERSION
;
496 if (max_version
== 0)
497 max_version
= TLS1_3_VERSION
;
498 #ifdef OPENSSL_NO_TLS1_3
499 if (max_version
== TLS1_3_VERSION
)
500 max_version
= TLS1_2_VERSION
;
502 #ifdef OPENSSL_NO_TLS1_2
503 if (max_version
== TLS1_2_VERSION
)
504 max_version
= TLS1_1_VERSION
;
506 #ifdef OPENSSL_NO_TLS1_1
507 if (max_version
== TLS1_1_VERSION
)
508 max_version
= TLS1_VERSION
;
510 #ifdef OPENSSL_NO_TLS1
511 if (max_version
== TLS1_VERSION
)
512 max_version
= SSL3_VERSION
;
514 #ifdef OPENSSL_NO_SSL3
515 if (min_version
== SSL3_VERSION
)
516 min_version
= TLS1_VERSION
;
518 #ifdef OPENSSL_NO_TLS1
519 if (min_version
== TLS1_VERSION
)
520 min_version
= TLS1_1_VERSION
;
522 #ifdef OPENSSL_NO_TLS1_1
523 if (min_version
== TLS1_1_VERSION
)
524 min_version
= TLS1_2_VERSION
;
526 #ifdef OPENSSL_NO_TLS1_2
527 if (min_version
== TLS1_2_VERSION
)
528 min_version
= TLS1_3_VERSION
;
530 /* Done massaging versions; do the check. */
532 #ifdef OPENSSL_NO_SSL3
533 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
535 #ifdef OPENSSL_NO_TLS1
536 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
538 #ifdef OPENSSL_NO_TLS1_1
539 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
541 #ifdef OPENSSL_NO_TLS1_2
542 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
544 #ifdef OPENSSL_NO_TLS1_3
545 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
553 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
555 * Define a VPROC function for HP NonStop build ssl library.
556 * This is used by platform version identification tools.
557 * Do not inline this procedure or make it static.
559 # define OPENSSL_VPROC_STRING_(x) x##_SSL
560 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
561 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
562 void OPENSSL_VPROC_FUNC(void) {}
566 static void clear_ciphers(SSL
*s
)
568 /* clear the current cipher */
569 ssl_clear_cipher_ctx(s
);
570 ssl_clear_hash_ctx(&s
->read_hash
);
571 ssl_clear_hash_ctx(&s
->write_hash
);
574 int SSL_clear(SSL
*s
)
576 if (s
->method
== NULL
) {
577 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
581 if (ssl_clear_bad_session(s
)) {
582 SSL_SESSION_free(s
->session
);
585 SSL_SESSION_free(s
->psksession
);
586 s
->psksession
= NULL
;
587 OPENSSL_free(s
->psksession_id
);
588 s
->psksession_id
= NULL
;
589 s
->psksession_id_len
= 0;
590 s
->hello_retry_request
= 0;
597 if (s
->renegotiate
) {
598 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
602 ossl_statem_clear(s
);
604 s
->version
= s
->method
->version
;
605 s
->client_version
= s
->version
;
606 s
->rwstate
= SSL_NOTHING
;
608 BUF_MEM_free(s
->init_buf
);
613 s
->key_update
= SSL_KEY_UPDATE_NONE
;
615 EVP_MD_CTX_free(s
->pha_dgst
);
618 /* Reset DANE verification result state */
621 X509_free(s
->dane
.mcert
);
622 s
->dane
.mcert
= NULL
;
623 s
->dane
.mtlsa
= NULL
;
625 /* Clear the verification result peername */
626 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
628 /* Clear any shared connection state */
629 OPENSSL_free(s
->shared_sigalgs
);
630 s
->shared_sigalgs
= NULL
;
631 s
->shared_sigalgslen
= 0;
634 * Check to see if we were changed into a different method, if so, revert
637 if (s
->method
!= s
->ctx
->method
) {
638 s
->method
->ssl_free(s
);
639 s
->method
= s
->ctx
->method
;
640 if (!s
->method
->ssl_new(s
))
643 if (!s
->method
->ssl_clear(s
))
647 RECORD_LAYER_clear(&s
->rlayer
);
652 #ifndef OPENSSL_NO_DEPRECATED_3_0
653 /** Used to change an SSL_CTXs default SSL method type */
654 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
656 STACK_OF(SSL_CIPHER
) *sk
;
660 if (!SSL_CTX_set_ciphersuites(ctx
, OSSL_default_ciphersuites())) {
661 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
664 sk
= ssl_create_cipher_list(ctx
->method
,
665 ctx
->tls13_ciphersuites
,
667 &(ctx
->cipher_list_by_id
),
668 OSSL_default_cipher_list(), ctx
->cert
);
669 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
670 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
677 SSL
*SSL_new(SSL_CTX
*ctx
)
682 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
685 if (ctx
->method
== NULL
) {
686 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
690 s
= OPENSSL_zalloc(sizeof(*s
));
695 s
->lock
= CRYPTO_THREAD_lock_new();
696 if (s
->lock
== NULL
) {
702 RECORD_LAYER_init(&s
->rlayer
, s
);
704 s
->options
= ctx
->options
;
705 s
->dane
.flags
= ctx
->dane
.flags
;
706 s
->min_proto_version
= ctx
->min_proto_version
;
707 s
->max_proto_version
= ctx
->max_proto_version
;
709 s
->max_cert_list
= ctx
->max_cert_list
;
710 s
->max_early_data
= ctx
->max_early_data
;
711 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
712 s
->num_tickets
= ctx
->num_tickets
;
713 s
->pha_enabled
= ctx
->pha_enabled
;
715 /* Shallow copy of the ciphersuites stack */
716 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
717 if (s
->tls13_ciphersuites
== NULL
)
721 * Earlier library versions used to copy the pointer to the CERT, not
722 * its contents; only when setting new parameters for the per-SSL
723 * copy, ssl_cert_new would be called (and the direct reference to
724 * the per-SSL_CTX settings would be lost, but those still were
725 * indirectly accessed for various purposes, and for that reason they
726 * used to be known as s->ctx->default_cert). Now we don't look at the
727 * SSL_CTX's CERT after having duplicated it once.
729 s
->cert
= ssl_cert_dup(ctx
->cert
);
733 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
734 s
->msg_callback
= ctx
->msg_callback
;
735 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
736 s
->verify_mode
= ctx
->verify_mode
;
737 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
738 s
->record_padding_cb
= ctx
->record_padding_cb
;
739 s
->record_padding_arg
= ctx
->record_padding_arg
;
740 s
->block_padding
= ctx
->block_padding
;
741 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
742 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
744 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
745 s
->verify_callback
= ctx
->default_verify_callback
;
746 s
->generate_session_id
= ctx
->generate_session_id
;
748 s
->param
= X509_VERIFY_PARAM_new();
749 if (s
->param
== NULL
)
751 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
752 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
754 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
755 s
->max_send_fragment
= ctx
->max_send_fragment
;
756 s
->split_send_fragment
= ctx
->split_send_fragment
;
757 s
->max_pipelines
= ctx
->max_pipelines
;
758 if (s
->max_pipelines
> 1)
759 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
760 if (ctx
->default_read_buf_len
> 0)
761 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
766 s
->ext
.debug_arg
= NULL
;
767 s
->ext
.ticket_expected
= 0;
768 s
->ext
.status_type
= ctx
->ext
.status_type
;
769 s
->ext
.status_expected
= 0;
770 s
->ext
.ocsp
.ids
= NULL
;
771 s
->ext
.ocsp
.exts
= NULL
;
772 s
->ext
.ocsp
.resp
= NULL
;
773 s
->ext
.ocsp
.resp_len
= 0;
775 s
->session_ctx
= ctx
;
776 #ifndef OPENSSL_NO_EC
777 if (ctx
->ext
.ecpointformats
) {
778 s
->ext
.ecpointformats
=
779 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
780 ctx
->ext
.ecpointformats_len
);
781 if (!s
->ext
.ecpointformats
)
783 s
->ext
.ecpointformats_len
=
784 ctx
->ext
.ecpointformats_len
;
787 if (ctx
->ext
.supportedgroups
) {
788 s
->ext
.supportedgroups
=
789 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
790 ctx
->ext
.supportedgroups_len
791 * sizeof(*ctx
->ext
.supportedgroups
));
792 if (!s
->ext
.supportedgroups
)
794 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
797 #ifndef OPENSSL_NO_NEXTPROTONEG
801 if (s
->ctx
->ext
.alpn
) {
802 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
803 if (s
->ext
.alpn
== NULL
)
805 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
806 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
809 s
->verified_chain
= NULL
;
810 s
->verify_result
= X509_V_OK
;
812 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
813 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
815 s
->method
= ctx
->method
;
817 s
->key_update
= SSL_KEY_UPDATE_NONE
;
819 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
820 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
822 if (!s
->method
->ssl_new(s
))
825 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
830 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
833 #ifndef OPENSSL_NO_PSK
834 s
->psk_client_callback
= ctx
->psk_client_callback
;
835 s
->psk_server_callback
= ctx
->psk_server_callback
;
837 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
838 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
840 s
->async_cb
= ctx
->async_cb
;
841 s
->async_cb_arg
= ctx
->async_cb_arg
;
845 #ifndef OPENSSL_NO_CT
846 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
847 ctx
->ct_validation_callback_arg
))
854 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
858 int SSL_is_dtls(const SSL
*s
)
860 return SSL_IS_DTLS(s
) ? 1 : 0;
863 int SSL_up_ref(SSL
*s
)
867 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
870 REF_PRINT_COUNT("SSL", s
);
871 REF_ASSERT_ISNT(i
< 2);
872 return ((i
> 1) ? 1 : 0);
875 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
876 unsigned int sid_ctx_len
)
878 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
879 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
880 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
883 ctx
->sid_ctx_length
= sid_ctx_len
;
884 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
889 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
890 unsigned int sid_ctx_len
)
892 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
893 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
894 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
897 ssl
->sid_ctx_length
= sid_ctx_len
;
898 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
903 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
905 CRYPTO_THREAD_write_lock(ctx
->lock
);
906 ctx
->generate_session_id
= cb
;
907 CRYPTO_THREAD_unlock(ctx
->lock
);
911 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
913 CRYPTO_THREAD_write_lock(ssl
->lock
);
914 ssl
->generate_session_id
= cb
;
915 CRYPTO_THREAD_unlock(ssl
->lock
);
919 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
923 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
924 * we can "construct" a session to give us the desired check - i.e. to
925 * find if there's a session in the hash table that would conflict with
926 * any new session built out of this id/id_len and the ssl_version in use
931 if (id_len
> sizeof(r
.session_id
))
934 r
.ssl_version
= ssl
->version
;
935 r
.session_id_length
= id_len
;
936 memcpy(r
.session_id
, id
, id_len
);
938 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
939 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
940 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
944 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
946 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
949 int SSL_set_purpose(SSL
*s
, int purpose
)
951 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
954 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
956 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
959 int SSL_set_trust(SSL
*s
, int trust
)
961 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
964 int SSL_set1_host(SSL
*s
, const char *hostname
)
966 /* If a hostname is provided and parses as an IP address,
967 * treat it as such. */
968 if (hostname
&& X509_VERIFY_PARAM_set1_ip_asc(s
->param
, hostname
) == 1)
971 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
974 int SSL_add1_host(SSL
*s
, const char *hostname
)
976 /* If a hostname is provided and parses as an IP address,
977 * treat it as such. */
980 ASN1_OCTET_STRING
*ip
;
983 ip
= a2i_IPADDRESS(hostname
);
985 /* We didn't want it; only to check if it *is* an IP address */
986 ASN1_OCTET_STRING_free(ip
);
988 old_ip
= X509_VERIFY_PARAM_get1_ip_asc(s
->param
);
991 OPENSSL_free(old_ip
);
992 /* There can be only one IP address */
996 return X509_VERIFY_PARAM_set1_ip_asc(s
->param
, hostname
);
1000 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
1003 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
1005 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
1008 const char *SSL_get0_peername(SSL
*s
)
1010 return X509_VERIFY_PARAM_get0_peername(s
->param
);
1013 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
1015 return dane_ctx_enable(&ctx
->dane
);
1018 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
1020 unsigned long orig
= ctx
->dane
.flags
;
1022 ctx
->dane
.flags
|= flags
;
1026 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
1028 unsigned long orig
= ctx
->dane
.flags
;
1030 ctx
->dane
.flags
&= ~flags
;
1034 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1036 SSL_DANE
*dane
= &s
->dane
;
1038 if (s
->ctx
->dane
.mdmax
== 0) {
1039 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1042 if (dane
->trecs
!= NULL
) {
1043 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1048 * Default SNI name. This rejects empty names, while set1_host below
1049 * accepts them and disables host name checks. To avoid side-effects with
1050 * invalid input, set the SNI name first.
1052 if (s
->ext
.hostname
== NULL
) {
1053 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1054 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1059 /* Primary RFC6125 reference identifier */
1060 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1061 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1067 dane
->dctx
= &s
->ctx
->dane
;
1068 dane
->trecs
= sk_danetls_record_new_null();
1070 if (dane
->trecs
== NULL
) {
1071 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1077 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1079 unsigned long orig
= ssl
->dane
.flags
;
1081 ssl
->dane
.flags
|= flags
;
1085 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1087 unsigned long orig
= ssl
->dane
.flags
;
1089 ssl
->dane
.flags
&= ~flags
;
1093 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1095 SSL_DANE
*dane
= &s
->dane
;
1097 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1101 *mcert
= dane
->mcert
;
1103 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1108 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1109 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1111 SSL_DANE
*dane
= &s
->dane
;
1113 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1117 *usage
= dane
->mtlsa
->usage
;
1119 *selector
= dane
->mtlsa
->selector
;
1121 *mtype
= dane
->mtlsa
->mtype
;
1123 *data
= dane
->mtlsa
->data
;
1125 *dlen
= dane
->mtlsa
->dlen
;
1130 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1135 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1136 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1138 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1141 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1144 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1147 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1149 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1152 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1154 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1157 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1162 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1167 void SSL_certs_clear(SSL
*s
)
1169 ssl_cert_clear_certs(s
->cert
);
1172 void SSL_free(SSL
*s
)
1178 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1179 REF_PRINT_COUNT("SSL", s
);
1182 REF_ASSERT_ISNT(i
< 0);
1184 X509_VERIFY_PARAM_free(s
->param
);
1185 dane_final(&s
->dane
);
1186 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1188 RECORD_LAYER_release(&s
->rlayer
);
1190 /* Ignore return value */
1191 ssl_free_wbio_buffer(s
);
1193 BIO_free_all(s
->wbio
);
1195 BIO_free_all(s
->rbio
);
1198 BUF_MEM_free(s
->init_buf
);
1200 /* add extra stuff */
1201 sk_SSL_CIPHER_free(s
->cipher_list
);
1202 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1203 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1204 sk_SSL_CIPHER_free(s
->peer_ciphers
);
1206 /* Make the next call work :-) */
1207 if (s
->session
!= NULL
) {
1208 ssl_clear_bad_session(s
);
1209 SSL_SESSION_free(s
->session
);
1211 SSL_SESSION_free(s
->psksession
);
1212 OPENSSL_free(s
->psksession_id
);
1216 ssl_cert_free(s
->cert
);
1217 OPENSSL_free(s
->shared_sigalgs
);
1218 /* Free up if allocated */
1220 OPENSSL_free(s
->ext
.hostname
);
1221 SSL_CTX_free(s
->session_ctx
);
1222 #ifndef OPENSSL_NO_EC
1223 OPENSSL_free(s
->ext
.ecpointformats
);
1224 OPENSSL_free(s
->ext
.peer_ecpointformats
);
1225 #endif /* OPENSSL_NO_EC */
1226 OPENSSL_free(s
->ext
.supportedgroups
);
1227 OPENSSL_free(s
->ext
.peer_supportedgroups
);
1228 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1229 #ifndef OPENSSL_NO_OCSP
1230 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1232 #ifndef OPENSSL_NO_CT
1233 SCT_LIST_free(s
->scts
);
1234 OPENSSL_free(s
->ext
.scts
);
1236 OPENSSL_free(s
->ext
.ocsp
.resp
);
1237 OPENSSL_free(s
->ext
.alpn
);
1238 OPENSSL_free(s
->ext
.tls13_cookie
);
1239 if (s
->clienthello
!= NULL
)
1240 OPENSSL_free(s
->clienthello
->pre_proc_exts
);
1241 OPENSSL_free(s
->clienthello
);
1242 OPENSSL_free(s
->pha_context
);
1243 EVP_MD_CTX_free(s
->pha_dgst
);
1245 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1246 sk_X509_NAME_pop_free(s
->client_ca_names
, X509_NAME_free
);
1248 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1250 if (s
->method
!= NULL
)
1251 s
->method
->ssl_free(s
);
1253 SSL_CTX_free(s
->ctx
);
1255 ASYNC_WAIT_CTX_free(s
->waitctx
);
1257 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1258 OPENSSL_free(s
->ext
.npn
);
1261 #ifndef OPENSSL_NO_SRTP
1262 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1265 CRYPTO_THREAD_lock_free(s
->lock
);
1270 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1272 BIO_free_all(s
->rbio
);
1276 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1279 * If the output buffering BIO is still in place, remove it
1281 if (s
->bbio
!= NULL
)
1282 s
->wbio
= BIO_pop(s
->wbio
);
1284 BIO_free_all(s
->wbio
);
1287 /* Re-attach |bbio| to the new |wbio|. */
1288 if (s
->bbio
!= NULL
)
1289 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1292 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1295 * For historical reasons, this function has many different cases in
1296 * ownership handling.
1299 /* If nothing has changed, do nothing */
1300 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1304 * If the two arguments are equal then one fewer reference is granted by the
1305 * caller than we want to take
1307 if (rbio
!= NULL
&& rbio
== wbio
)
1311 * If only the wbio is changed only adopt one reference.
1313 if (rbio
== SSL_get_rbio(s
)) {
1314 SSL_set0_wbio(s
, wbio
);
1318 * There is an asymmetry here for historical reasons. If only the rbio is
1319 * changed AND the rbio and wbio were originally different, then we only
1320 * adopt one reference.
1322 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1323 SSL_set0_rbio(s
, rbio
);
1327 /* Otherwise, adopt both references. */
1328 SSL_set0_rbio(s
, rbio
);
1329 SSL_set0_wbio(s
, wbio
);
1332 BIO
*SSL_get_rbio(const SSL
*s
)
1337 BIO
*SSL_get_wbio(const SSL
*s
)
1339 if (s
->bbio
!= NULL
) {
1341 * If |bbio| is active, the true caller-configured BIO is its
1344 return BIO_next(s
->bbio
);
1349 int SSL_get_fd(const SSL
*s
)
1351 return SSL_get_rfd(s
);
1354 int SSL_get_rfd(const SSL
*s
)
1359 b
= SSL_get_rbio(s
);
1360 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1362 BIO_get_fd(r
, &ret
);
1366 int SSL_get_wfd(const SSL
*s
)
1371 b
= SSL_get_wbio(s
);
1372 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1374 BIO_get_fd(r
, &ret
);
1378 #ifndef OPENSSL_NO_SOCK
1379 int SSL_set_fd(SSL
*s
, int fd
)
1384 bio
= BIO_new(BIO_s_socket());
1387 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1390 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1391 SSL_set_bio(s
, bio
, bio
);
1392 #ifndef OPENSSL_NO_KTLS
1394 * The new socket is created successfully regardless of ktls_enable.
1395 * ktls_enable doesn't change any functionality of the socket, except
1396 * changing the setsockopt to enable the processing of ktls_start.
1397 * Thus, it is not a problem to call it for non-TLS sockets.
1400 #endif /* OPENSSL_NO_KTLS */
1406 int SSL_set_wfd(SSL
*s
, int fd
)
1408 BIO
*rbio
= SSL_get_rbio(s
);
1410 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1411 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1412 BIO
*bio
= BIO_new(BIO_s_socket());
1415 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1418 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1419 SSL_set0_wbio(s
, bio
);
1420 #ifndef OPENSSL_NO_KTLS
1422 * The new socket is created successfully regardless of ktls_enable.
1423 * ktls_enable doesn't change any functionality of the socket, except
1424 * changing the setsockopt to enable the processing of ktls_start.
1425 * Thus, it is not a problem to call it for non-TLS sockets.
1428 #endif /* OPENSSL_NO_KTLS */
1431 SSL_set0_wbio(s
, rbio
);
1436 int SSL_set_rfd(SSL
*s
, int fd
)
1438 BIO
*wbio
= SSL_get_wbio(s
);
1440 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1441 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1442 BIO
*bio
= BIO_new(BIO_s_socket());
1445 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1448 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1449 SSL_set0_rbio(s
, bio
);
1452 SSL_set0_rbio(s
, wbio
);
1459 /* return length of latest Finished message we sent, copy to 'buf' */
1460 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1464 ret
= s
->s3
.tmp
.finish_md_len
;
1467 memcpy(buf
, s
->s3
.tmp
.finish_md
, count
);
1471 /* return length of latest Finished message we expected, copy to 'buf' */
1472 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1476 ret
= s
->s3
.tmp
.peer_finish_md_len
;
1479 memcpy(buf
, s
->s3
.tmp
.peer_finish_md
, count
);
1483 int SSL_get_verify_mode(const SSL
*s
)
1485 return s
->verify_mode
;
1488 int SSL_get_verify_depth(const SSL
*s
)
1490 return X509_VERIFY_PARAM_get_depth(s
->param
);
1493 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1494 return s
->verify_callback
;
1497 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1499 return ctx
->verify_mode
;
1502 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1504 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1507 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1508 return ctx
->default_verify_callback
;
1511 void SSL_set_verify(SSL
*s
, int mode
,
1512 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1514 s
->verify_mode
= mode
;
1515 if (callback
!= NULL
)
1516 s
->verify_callback
= callback
;
1519 void SSL_set_verify_depth(SSL
*s
, int depth
)
1521 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1524 void SSL_set_read_ahead(SSL
*s
, int yes
)
1526 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1529 int SSL_get_read_ahead(const SSL
*s
)
1531 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1534 int SSL_pending(const SSL
*s
)
1536 size_t pending
= s
->method
->ssl_pending(s
);
1539 * SSL_pending cannot work properly if read-ahead is enabled
1540 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1541 * impossible to fix since SSL_pending cannot report errors that may be
1542 * observed while scanning the new data. (Note that SSL_pending() is
1543 * often used as a boolean value, so we'd better not return -1.)
1545 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1546 * we just return INT_MAX.
1548 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1551 int SSL_has_pending(const SSL
*s
)
1554 * Similar to SSL_pending() but returns a 1 to indicate that we have
1555 * unprocessed data available or 0 otherwise (as opposed to the number of
1556 * bytes available). Unlike SSL_pending() this will take into account
1557 * read_ahead data. A 1 return simply indicates that we have unprocessed
1558 * data. That data may not result in any application data, or we may fail
1559 * to parse the records for some reason.
1561 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1564 return RECORD_LAYER_read_pending(&s
->rlayer
);
1567 X509
*SSL_get1_peer_certificate(const SSL
*s
)
1569 X509
*r
= SSL_get0_peer_certificate(s
);
1577 X509
*SSL_get0_peer_certificate(const SSL
*s
)
1579 if ((s
== NULL
) || (s
->session
== NULL
))
1582 return s
->session
->peer
;
1585 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1589 if ((s
== NULL
) || (s
->session
== NULL
))
1592 r
= s
->session
->peer_chain
;
1595 * If we are a client, cert_chain includes the peer's own certificate; if
1596 * we are a server, it does not.
1603 * Now in theory, since the calling process own 't' it should be safe to
1604 * modify. We need to be able to read f without being hassled
1606 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1609 /* Do we need to to SSL locking? */
1610 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1615 * what if we are setup for one protocol version but want to talk another
1617 if (t
->method
!= f
->method
) {
1618 t
->method
->ssl_free(t
);
1619 t
->method
= f
->method
;
1620 if (t
->method
->ssl_new(t
) == 0)
1624 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1625 ssl_cert_free(t
->cert
);
1627 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1634 /* Fix this so it checks all the valid key/cert options */
1635 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1637 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1638 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1641 if (ctx
->cert
->key
->privatekey
== NULL
) {
1642 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1645 return X509_check_private_key
1646 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1649 /* Fix this function so that it takes an optional type parameter */
1650 int SSL_check_private_key(const SSL
*ssl
)
1653 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1656 if (ssl
->cert
->key
->x509
== NULL
) {
1657 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1660 if (ssl
->cert
->key
->privatekey
== NULL
) {
1661 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1664 return X509_check_private_key(ssl
->cert
->key
->x509
,
1665 ssl
->cert
->key
->privatekey
);
1668 int SSL_waiting_for_async(SSL
*s
)
1676 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1678 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1682 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1685 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1686 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1688 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1692 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1696 int SSL_CTX_set_async_callback(SSL_CTX
*ctx
, SSL_async_callback_fn callback
)
1698 ctx
->async_cb
= callback
;
1702 int SSL_CTX_set_async_callback_arg(SSL_CTX
*ctx
, void *arg
)
1704 ctx
->async_cb_arg
= arg
;
1708 int SSL_set_async_callback(SSL
*s
, SSL_async_callback_fn callback
)
1710 s
->async_cb
= callback
;
1714 int SSL_set_async_callback_arg(SSL
*s
, void *arg
)
1716 s
->async_cb_arg
= arg
;
1720 int SSL_get_async_status(SSL
*s
, int *status
)
1722 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1726 *status
= ASYNC_WAIT_CTX_get_status(ctx
);
1730 int SSL_accept(SSL
*s
)
1732 if (s
->handshake_func
== NULL
) {
1733 /* Not properly initialized yet */
1734 SSL_set_accept_state(s
);
1737 return SSL_do_handshake(s
);
1740 int SSL_connect(SSL
*s
)
1742 if (s
->handshake_func
== NULL
) {
1743 /* Not properly initialized yet */
1744 SSL_set_connect_state(s
);
1747 return SSL_do_handshake(s
);
1750 long SSL_get_default_timeout(const SSL
*s
)
1752 return s
->method
->get_timeout();
1755 static int ssl_async_wait_ctx_cb(void *arg
)
1757 SSL
*s
= (SSL
*)arg
;
1759 return s
->async_cb(s
, s
->async_cb_arg
);
1762 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1763 int (*func
) (void *))
1766 if (s
->waitctx
== NULL
) {
1767 s
->waitctx
= ASYNC_WAIT_CTX_new();
1768 if (s
->waitctx
== NULL
)
1770 if (s
->async_cb
!= NULL
1771 && !ASYNC_WAIT_CTX_set_callback
1772 (s
->waitctx
, ssl_async_wait_ctx_cb
, s
))
1775 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1776 sizeof(struct ssl_async_args
))) {
1778 s
->rwstate
= SSL_NOTHING
;
1779 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1782 s
->rwstate
= SSL_ASYNC_PAUSED
;
1785 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1791 s
->rwstate
= SSL_NOTHING
;
1792 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1793 /* Shouldn't happen */
1798 static int ssl_io_intern(void *vargs
)
1800 struct ssl_async_args
*args
;
1805 args
= (struct ssl_async_args
*)vargs
;
1809 switch (args
->type
) {
1811 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1813 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1815 return args
->f
.func_other(s
);
1820 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1822 if (s
->handshake_func
== NULL
) {
1823 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1827 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1828 s
->rwstate
= SSL_NOTHING
;
1832 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1833 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1834 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1838 * If we are a client and haven't received the ServerHello etc then we
1841 ossl_statem_check_finish_init(s
, 0);
1843 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1844 struct ssl_async_args args
;
1850 args
.type
= READFUNC
;
1851 args
.f
.func_read
= s
->method
->ssl_read
;
1853 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1854 *readbytes
= s
->asyncrw
;
1857 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1861 int SSL_read(SSL
*s
, void *buf
, int num
)
1867 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1871 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1874 * The cast is safe here because ret should be <= INT_MAX because num is
1878 ret
= (int)readbytes
;
1883 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1885 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1892 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1897 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1898 return SSL_READ_EARLY_DATA_ERROR
;
1901 switch (s
->early_data_state
) {
1902 case SSL_EARLY_DATA_NONE
:
1903 if (!SSL_in_before(s
)) {
1904 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1905 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1906 return SSL_READ_EARLY_DATA_ERROR
;
1910 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1911 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1912 ret
= SSL_accept(s
);
1915 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1916 return SSL_READ_EARLY_DATA_ERROR
;
1920 case SSL_EARLY_DATA_READ_RETRY
:
1921 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1922 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1923 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1925 * State machine will update early_data_state to
1926 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1929 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1930 != SSL_EARLY_DATA_FINISHED_READING
)) {
1931 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1932 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1933 : SSL_READ_EARLY_DATA_ERROR
;
1936 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1939 return SSL_READ_EARLY_DATA_FINISH
;
1942 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1943 return SSL_READ_EARLY_DATA_ERROR
;
1947 int SSL_get_early_data_status(const SSL
*s
)
1949 return s
->ext
.early_data
;
1952 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1954 if (s
->handshake_func
== NULL
) {
1955 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1959 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1962 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1963 struct ssl_async_args args
;
1969 args
.type
= READFUNC
;
1970 args
.f
.func_read
= s
->method
->ssl_peek
;
1972 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1973 *readbytes
= s
->asyncrw
;
1976 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1980 int SSL_peek(SSL
*s
, void *buf
, int num
)
1986 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1990 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1993 * The cast is safe here because ret should be <= INT_MAX because num is
1997 ret
= (int)readbytes
;
2003 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2005 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
2012 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2014 if (s
->handshake_func
== NULL
) {
2015 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
2019 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
2020 s
->rwstate
= SSL_NOTHING
;
2021 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2025 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2026 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
2027 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
2028 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2031 /* If we are a client and haven't sent the Finished we better do that */
2032 ossl_statem_check_finish_init(s
, 1);
2034 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2036 struct ssl_async_args args
;
2039 args
.buf
= (void *)buf
;
2041 args
.type
= WRITEFUNC
;
2042 args
.f
.func_write
= s
->method
->ssl_write
;
2044 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2045 *written
= s
->asyncrw
;
2048 return s
->method
->ssl_write(s
, buf
, num
, written
);
2052 ossl_ssize_t
SSL_sendfile(SSL
*s
, int fd
, off_t offset
, size_t size
, int flags
)
2056 if (s
->handshake_func
== NULL
) {
2057 SSLerr(SSL_F_SSL_SENDFILE
, SSL_R_UNINITIALIZED
);
2061 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
2062 s
->rwstate
= SSL_NOTHING
;
2063 SSLerr(SSL_F_SSL_SENDFILE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2067 if (!BIO_get_ktls_send(s
->wbio
)) {
2068 SSLerr(SSL_F_SSL_SENDFILE
, SSL_R_UNINITIALIZED
);
2072 /* If we have an alert to send, lets send it */
2073 if (s
->s3
.alert_dispatch
) {
2074 ret
= (ossl_ssize_t
)s
->method
->ssl_dispatch_alert(s
);
2076 /* SSLfatal() already called if appropriate */
2079 /* if it went, fall through and send more stuff */
2082 s
->rwstate
= SSL_WRITING
;
2083 if (BIO_flush(s
->wbio
) <= 0) {
2084 if (!BIO_should_retry(s
->wbio
)) {
2085 s
->rwstate
= SSL_NOTHING
;
2088 set_sys_error(EAGAIN
);
2094 #ifdef OPENSSL_NO_KTLS
2095 ERR_raise_data(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
,
2096 "can't call ktls_sendfile(), ktls disabled");
2099 ret
= ktls_sendfile(SSL_get_wfd(s
), fd
, offset
, size
, flags
);
2101 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2102 if ((get_last_sys_error() == EAGAIN
) ||
2103 (get_last_sys_error() == EINTR
) ||
2104 (get_last_sys_error() == EBUSY
))
2105 BIO_set_retry_write(s
->wbio
);
2108 SSLerr(SSL_F_SSL_SENDFILE
, SSL_R_UNINITIALIZED
);
2111 s
->rwstate
= SSL_NOTHING
;
2116 int SSL_write(SSL
*s
, const void *buf
, int num
)
2122 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
2126 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
2129 * The cast is safe here because ret should be <= INT_MAX because num is
2138 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2140 int ret
= ssl_write_internal(s
, buf
, num
, written
);
2147 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2149 int ret
, early_data_state
;
2151 uint32_t partialwrite
;
2153 switch (s
->early_data_state
) {
2154 case SSL_EARLY_DATA_NONE
:
2156 || !SSL_in_before(s
)
2157 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
2158 && (s
->psk_use_session_cb
== NULL
))) {
2159 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
2160 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2165 case SSL_EARLY_DATA_CONNECT_RETRY
:
2166 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2167 ret
= SSL_connect(s
);
2170 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2175 case SSL_EARLY_DATA_WRITE_RETRY
:
2176 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2178 * We disable partial write for early data because we don't keep track
2179 * of how many bytes we've written between the SSL_write_ex() call and
2180 * the flush if the flush needs to be retried)
2182 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2183 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2184 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2185 s
->mode
|= partialwrite
;
2187 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2190 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2193 case SSL_EARLY_DATA_WRITE_FLUSH
:
2194 /* The buffering BIO is still in place so we need to flush it */
2195 if (statem_flush(s
) != 1)
2198 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2201 case SSL_EARLY_DATA_FINISHED_READING
:
2202 case SSL_EARLY_DATA_READ_RETRY
:
2203 early_data_state
= s
->early_data_state
;
2204 /* We are a server writing to an unauthenticated client */
2205 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2206 ret
= SSL_write_ex(s
, buf
, num
, written
);
2207 /* The buffering BIO is still in place */
2209 (void)BIO_flush(s
->wbio
);
2210 s
->early_data_state
= early_data_state
;
2214 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2219 int SSL_shutdown(SSL
*s
)
2222 * Note that this function behaves differently from what one might
2223 * expect. Return values are 0 for no success (yet), 1 for success; but
2224 * calling it once is usually not enough, even if blocking I/O is used
2225 * (see ssl3_shutdown).
2228 if (s
->handshake_func
== NULL
) {
2229 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2233 if (!SSL_in_init(s
)) {
2234 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2235 struct ssl_async_args args
;
2238 args
.type
= OTHERFUNC
;
2239 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2241 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2243 return s
->method
->ssl_shutdown(s
);
2246 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2251 int SSL_key_update(SSL
*s
, int updatetype
)
2254 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2255 * negotiated, and that it is appropriate to call SSL_key_update() instead
2256 * of SSL_renegotiate().
2258 if (!SSL_IS_TLS13(s
)) {
2259 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2263 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2264 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2265 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2269 if (!SSL_is_init_finished(s
)) {
2270 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2274 ossl_statem_set_in_init(s
, 1);
2275 s
->key_update
= updatetype
;
2279 int SSL_get_key_update_type(const SSL
*s
)
2281 return s
->key_update
;
2284 int SSL_renegotiate(SSL
*s
)
2286 if (SSL_IS_TLS13(s
)) {
2287 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2291 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2292 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2299 return s
->method
->ssl_renegotiate(s
);
2302 int SSL_renegotiate_abbreviated(SSL
*s
)
2304 if (SSL_IS_TLS13(s
)) {
2305 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2309 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2310 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2317 return s
->method
->ssl_renegotiate(s
);
2320 int SSL_renegotiate_pending(const SSL
*s
)
2323 * becomes true when negotiation is requested; false again once a
2324 * handshake has finished
2326 return (s
->renegotiate
!= 0);
2329 int SSL_new_session_ticket(SSL
*s
)
2331 if (SSL_in_init(s
) || SSL_IS_FIRST_HANDSHAKE(s
) || !s
->server
2332 || !SSL_IS_TLS13(s
))
2334 s
->ext
.extra_tickets_expected
++;
2338 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2343 case SSL_CTRL_GET_READ_AHEAD
:
2344 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2345 case SSL_CTRL_SET_READ_AHEAD
:
2346 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2347 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2350 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2351 s
->msg_callback_arg
= parg
;
2355 return (s
->mode
|= larg
);
2356 case SSL_CTRL_CLEAR_MODE
:
2357 return (s
->mode
&= ~larg
);
2358 case SSL_CTRL_GET_MAX_CERT_LIST
:
2359 return (long)s
->max_cert_list
;
2360 case SSL_CTRL_SET_MAX_CERT_LIST
:
2363 l
= (long)s
->max_cert_list
;
2364 s
->max_cert_list
= (size_t)larg
;
2366 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2367 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2369 #ifndef OPENSSL_NO_KTLS
2370 if (s
->wbio
!= NULL
&& BIO_get_ktls_send(s
->wbio
))
2372 #endif /* OPENSSL_NO_KTLS */
2373 s
->max_send_fragment
= larg
;
2374 if (s
->max_send_fragment
< s
->split_send_fragment
)
2375 s
->split_send_fragment
= s
->max_send_fragment
;
2377 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2378 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2380 s
->split_send_fragment
= larg
;
2382 case SSL_CTRL_SET_MAX_PIPELINES
:
2383 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2385 s
->max_pipelines
= larg
;
2387 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2389 case SSL_CTRL_GET_RI_SUPPORT
:
2390 return s
->s3
.send_connection_binding
;
2391 case SSL_CTRL_CERT_FLAGS
:
2392 return (s
->cert
->cert_flags
|= larg
);
2393 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2394 return (s
->cert
->cert_flags
&= ~larg
);
2396 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2398 if (s
->s3
.tmp
.ciphers_raw
== NULL
)
2400 *(unsigned char **)parg
= s
->s3
.tmp
.ciphers_raw
;
2401 return (int)s
->s3
.tmp
.ciphers_rawlen
;
2403 return TLS_CIPHER_LEN
;
2405 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2406 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2408 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2412 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2413 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2414 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2415 &s
->min_proto_version
);
2416 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2417 return s
->min_proto_version
;
2418 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2419 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2420 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2421 &s
->max_proto_version
);
2422 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2423 return s
->max_proto_version
;
2425 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2429 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2432 case SSL_CTRL_SET_MSG_CALLBACK
:
2433 s
->msg_callback
= (void (*)
2434 (int write_p
, int version
, int content_type
,
2435 const void *buf
, size_t len
, SSL
*ssl
,
2440 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2444 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2446 return ctx
->sessions
;
2449 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2452 /* For some cases with ctx == NULL perform syntax checks */
2455 case SSL_CTRL_SET_GROUPS_LIST
:
2456 return tls1_set_groups_list(ctx
, NULL
, NULL
, parg
);
2457 case SSL_CTRL_SET_SIGALGS_LIST
:
2458 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2459 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2466 case SSL_CTRL_GET_READ_AHEAD
:
2467 return ctx
->read_ahead
;
2468 case SSL_CTRL_SET_READ_AHEAD
:
2469 l
= ctx
->read_ahead
;
2470 ctx
->read_ahead
= larg
;
2473 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2474 ctx
->msg_callback_arg
= parg
;
2477 case SSL_CTRL_GET_MAX_CERT_LIST
:
2478 return (long)ctx
->max_cert_list
;
2479 case SSL_CTRL_SET_MAX_CERT_LIST
:
2482 l
= (long)ctx
->max_cert_list
;
2483 ctx
->max_cert_list
= (size_t)larg
;
2486 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2489 l
= (long)ctx
->session_cache_size
;
2490 ctx
->session_cache_size
= (size_t)larg
;
2492 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2493 return (long)ctx
->session_cache_size
;
2494 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2495 l
= ctx
->session_cache_mode
;
2496 ctx
->session_cache_mode
= larg
;
2498 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2499 return ctx
->session_cache_mode
;
2501 case SSL_CTRL_SESS_NUMBER
:
2502 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2503 case SSL_CTRL_SESS_CONNECT
:
2504 return tsan_load(&ctx
->stats
.sess_connect
);
2505 case SSL_CTRL_SESS_CONNECT_GOOD
:
2506 return tsan_load(&ctx
->stats
.sess_connect_good
);
2507 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2508 return tsan_load(&ctx
->stats
.sess_connect_renegotiate
);
2509 case SSL_CTRL_SESS_ACCEPT
:
2510 return tsan_load(&ctx
->stats
.sess_accept
);
2511 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2512 return tsan_load(&ctx
->stats
.sess_accept_good
);
2513 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2514 return tsan_load(&ctx
->stats
.sess_accept_renegotiate
);
2515 case SSL_CTRL_SESS_HIT
:
2516 return tsan_load(&ctx
->stats
.sess_hit
);
2517 case SSL_CTRL_SESS_CB_HIT
:
2518 return tsan_load(&ctx
->stats
.sess_cb_hit
);
2519 case SSL_CTRL_SESS_MISSES
:
2520 return tsan_load(&ctx
->stats
.sess_miss
);
2521 case SSL_CTRL_SESS_TIMEOUTS
:
2522 return tsan_load(&ctx
->stats
.sess_timeout
);
2523 case SSL_CTRL_SESS_CACHE_FULL
:
2524 return tsan_load(&ctx
->stats
.sess_cache_full
);
2526 return (ctx
->mode
|= larg
);
2527 case SSL_CTRL_CLEAR_MODE
:
2528 return (ctx
->mode
&= ~larg
);
2529 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2530 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2532 ctx
->max_send_fragment
= larg
;
2533 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2534 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2536 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2537 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2539 ctx
->split_send_fragment
= larg
;
2541 case SSL_CTRL_SET_MAX_PIPELINES
:
2542 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2544 ctx
->max_pipelines
= larg
;
2546 case SSL_CTRL_CERT_FLAGS
:
2547 return (ctx
->cert
->cert_flags
|= larg
);
2548 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2549 return (ctx
->cert
->cert_flags
&= ~larg
);
2550 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2551 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2552 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2553 &ctx
->min_proto_version
);
2554 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2555 return ctx
->min_proto_version
;
2556 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2557 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2558 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2559 &ctx
->max_proto_version
);
2560 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2561 return ctx
->max_proto_version
;
2563 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2567 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2570 case SSL_CTRL_SET_MSG_CALLBACK
:
2571 ctx
->msg_callback
= (void (*)
2572 (int write_p
, int version
, int content_type
,
2573 const void *buf
, size_t len
, SSL
*ssl
,
2578 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2582 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2591 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2592 const SSL_CIPHER
*const *bp
)
2594 if ((*ap
)->id
> (*bp
)->id
)
2596 if ((*ap
)->id
< (*bp
)->id
)
2601 /** return a STACK of the ciphers available for the SSL and in order of
2603 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2606 if (s
->cipher_list
!= NULL
) {
2607 return s
->cipher_list
;
2608 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2609 return s
->ctx
->cipher_list
;
2615 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2617 if ((s
== NULL
) || !s
->server
)
2619 return s
->peer_ciphers
;
2622 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2624 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2627 ciphers
= SSL_get_ciphers(s
);
2630 if (!ssl_set_client_disabled(s
))
2632 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2633 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2634 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2636 sk
= sk_SSL_CIPHER_new_null();
2639 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2640 sk_SSL_CIPHER_free(sk
);
2648 /** return a STACK of the ciphers available for the SSL and in order of
2650 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2653 if (s
->cipher_list_by_id
!= NULL
) {
2654 return s
->cipher_list_by_id
;
2655 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2656 return s
->ctx
->cipher_list_by_id
;
2662 /** The old interface to get the same thing as SSL_get_ciphers() */
2663 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2665 const SSL_CIPHER
*c
;
2666 STACK_OF(SSL_CIPHER
) *sk
;
2670 sk
= SSL_get_ciphers(s
);
2671 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2673 c
= sk_SSL_CIPHER_value(sk
, n
);
2679 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2681 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2684 return ctx
->cipher_list
;
2689 * Distinguish between ciphers controlled by set_ciphersuite() and
2690 * set_cipher_list() when counting.
2692 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER
) *sk
)
2695 const SSL_CIPHER
*c
;
2699 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); ++i
) {
2700 c
= sk_SSL_CIPHER_value(sk
, i
);
2701 if (c
->min_tls
>= TLS1_3_VERSION
)
2708 /** specify the ciphers to be used by default by the SSL_CTX */
2709 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2711 STACK_OF(SSL_CIPHER
) *sk
;
2713 sk
= ssl_create_cipher_list(ctx
->method
, ctx
->tls13_ciphersuites
,
2714 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
2717 * ssl_create_cipher_list may return an empty stack if it was unable to
2718 * find a cipher matching the given rule string (for example if the rule
2719 * string specifies a cipher which has been disabled). This is not an
2720 * error as far as ssl_create_cipher_list is concerned, and hence
2721 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2725 else if (cipher_list_tls12_num(sk
) == 0) {
2726 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2732 /** specify the ciphers to be used by the SSL */
2733 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2735 STACK_OF(SSL_CIPHER
) *sk
;
2737 sk
= ssl_create_cipher_list(s
->ctx
->method
, s
->tls13_ciphersuites
,
2738 &s
->cipher_list
, &s
->cipher_list_by_id
, str
,
2740 /* see comment in SSL_CTX_set_cipher_list */
2743 else if (cipher_list_tls12_num(sk
) == 0) {
2744 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2750 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
2753 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
2754 const SSL_CIPHER
*c
;
2758 || s
->peer_ciphers
== NULL
2763 clntsk
= s
->peer_ciphers
;
2764 srvrsk
= SSL_get_ciphers(s
);
2765 if (clntsk
== NULL
|| srvrsk
== NULL
)
2768 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
2771 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
2774 c
= sk_SSL_CIPHER_value(clntsk
, i
);
2775 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
2778 n
= strlen(c
->name
);
2795 * Return the requested servername (SNI) value. Note that the behaviour varies
2797 * - whether this is called by the client or the server,
2798 * - if we are before or during/after the handshake,
2799 * - if a resumption or normal handshake is being attempted/has occurred
2800 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
2802 * Note that only the host_name type is defined (RFC 3546).
2804 const char *SSL_get_servername(const SSL
*s
, const int type
)
2807 * If we don't know if we are the client or the server yet then we assume
2810 int server
= s
->handshake_func
== NULL
? 0 : s
->server
;
2811 if (type
!= TLSEXT_NAMETYPE_host_name
)
2817 * In TLSv1.3 on the server SNI is not associated with the session
2818 * but in TLSv1.2 or below it is.
2820 * Before the handshake:
2823 * During/after the handshake (TLSv1.2 or below resumption occurred):
2824 * - If a servername was accepted by the server in the original
2825 * handshake then it will return that servername, or NULL otherwise.
2827 * During/after the handshake (TLSv1.2 or below resumption did not occur):
2828 * - The function will return the servername requested by the client in
2829 * this handshake or NULL if none was requested.
2831 if (s
->hit
&& !SSL_IS_TLS13(s
))
2832 return s
->session
->ext
.hostname
;
2837 * Before the handshake:
2838 * - If a servername has been set via a call to
2839 * SSL_set_tlsext_host_name() then it will return that servername
2840 * - If one has not been set, but a TLSv1.2 resumption is being
2841 * attempted and the session from the original handshake had a
2842 * servername accepted by the server then it will return that
2844 * - Otherwise it returns NULL
2846 * During/after the handshake (TLSv1.2 or below resumption occurred):
2847 * - If the session from the orignal handshake had a servername accepted
2848 * by the server then it will return that servername.
2849 * - Otherwise it returns the servername set via
2850 * SSL_set_tlsext_host_name() (or NULL if it was not called).
2852 * During/after the handshake (TLSv1.2 or below resumption did not occur):
2853 * - It will return the servername set via SSL_set_tlsext_host_name()
2854 * (or NULL if it was not called).
2856 if (SSL_in_before(s
)) {
2857 if (s
->ext
.hostname
== NULL
2858 && s
->session
!= NULL
2859 && s
->session
->ssl_version
!= TLS1_3_VERSION
)
2860 return s
->session
->ext
.hostname
;
2862 if (!SSL_IS_TLS13(s
) && s
->hit
&& s
->session
->ext
.hostname
!= NULL
)
2863 return s
->session
->ext
.hostname
;
2867 return s
->ext
.hostname
;
2870 int SSL_get_servername_type(const SSL
*s
)
2872 if (SSL_get_servername(s
, TLSEXT_NAMETYPE_host_name
) != NULL
)
2873 return TLSEXT_NAMETYPE_host_name
;
2878 * SSL_select_next_proto implements the standard protocol selection. It is
2879 * expected that this function is called from the callback set by
2880 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2881 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2882 * not included in the length. A byte string of length 0 is invalid. No byte
2883 * string may be truncated. The current, but experimental algorithm for
2884 * selecting the protocol is: 1) If the server doesn't support NPN then this
2885 * is indicated to the callback. In this case, the client application has to
2886 * abort the connection or have a default application level protocol. 2) If
2887 * the server supports NPN, but advertises an empty list then the client
2888 * selects the first protocol in its list, but indicates via the API that this
2889 * fallback case was enacted. 3) Otherwise, the client finds the first
2890 * protocol in the server's list that it supports and selects this protocol.
2891 * This is because it's assumed that the server has better information about
2892 * which protocol a client should use. 4) If the client doesn't support any
2893 * of the server's advertised protocols, then this is treated the same as
2894 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2895 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2897 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2898 const unsigned char *server
,
2899 unsigned int server_len
,
2900 const unsigned char *client
, unsigned int client_len
)
2903 const unsigned char *result
;
2904 int status
= OPENSSL_NPN_UNSUPPORTED
;
2907 * For each protocol in server preference order, see if we support it.
2909 for (i
= 0; i
< server_len
;) {
2910 for (j
= 0; j
< client_len
;) {
2911 if (server
[i
] == client
[j
] &&
2912 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2913 /* We found a match */
2914 result
= &server
[i
];
2915 status
= OPENSSL_NPN_NEGOTIATED
;
2925 /* There's no overlap between our protocols and the server's list. */
2927 status
= OPENSSL_NPN_NO_OVERLAP
;
2930 *out
= (unsigned char *)result
+ 1;
2931 *outlen
= result
[0];
2935 #ifndef OPENSSL_NO_NEXTPROTONEG
2937 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2938 * client's requested protocol for this connection and returns 0. If the
2939 * client didn't request any protocol, then *data is set to NULL. Note that
2940 * the client can request any protocol it chooses. The value returned from
2941 * this function need not be a member of the list of supported protocols
2942 * provided by the callback.
2944 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2948 if (*data
== NULL
) {
2951 *len
= (unsigned int)s
->ext
.npn_len
;
2956 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2957 * a TLS server needs a list of supported protocols for Next Protocol
2958 * Negotiation. The returned list must be in wire format. The list is
2959 * returned by setting |out| to point to it and |outlen| to its length. This
2960 * memory will not be modified, but one should assume that the SSL* keeps a
2961 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2962 * wishes to advertise. Otherwise, no such extension will be included in the
2965 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2966 SSL_CTX_npn_advertised_cb_func cb
,
2969 ctx
->ext
.npn_advertised_cb
= cb
;
2970 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2974 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2975 * client needs to select a protocol from the server's provided list. |out|
2976 * must be set to point to the selected protocol (which may be within |in|).
2977 * The length of the protocol name must be written into |outlen|. The
2978 * server's advertised protocols are provided in |in| and |inlen|. The
2979 * callback can assume that |in| is syntactically valid. The client must
2980 * select a protocol. It is fatal to the connection if this callback returns
2981 * a value other than SSL_TLSEXT_ERR_OK.
2983 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2984 SSL_CTX_npn_select_cb_func cb
,
2987 ctx
->ext
.npn_select_cb
= cb
;
2988 ctx
->ext
.npn_select_cb_arg
= arg
;
2993 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2994 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2995 * length-prefixed strings). Returns 0 on success.
2997 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2998 unsigned int protos_len
)
3000 OPENSSL_free(ctx
->ext
.alpn
);
3001 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
3002 if (ctx
->ext
.alpn
== NULL
) {
3003 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
3006 ctx
->ext
.alpn_len
= protos_len
;
3012 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3013 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3014 * length-prefixed strings). Returns 0 on success.
3016 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
3017 unsigned int protos_len
)
3019 OPENSSL_free(ssl
->ext
.alpn
);
3020 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
3021 if (ssl
->ext
.alpn
== NULL
) {
3022 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
3025 ssl
->ext
.alpn_len
= protos_len
;
3031 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3032 * called during ClientHello processing in order to select an ALPN protocol
3033 * from the client's list of offered protocols.
3035 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
3036 SSL_CTX_alpn_select_cb_func cb
,
3039 ctx
->ext
.alpn_select_cb
= cb
;
3040 ctx
->ext
.alpn_select_cb_arg
= arg
;
3044 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3045 * On return it sets |*data| to point to |*len| bytes of protocol name
3046 * (not including the leading length-prefix byte). If the server didn't
3047 * respond with a negotiated protocol then |*len| will be zero.
3049 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
3052 *data
= ssl
->s3
.alpn_selected
;
3056 *len
= (unsigned int)ssl
->s3
.alpn_selected_len
;
3059 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
3060 const char *label
, size_t llen
,
3061 const unsigned char *context
, size_t contextlen
,
3064 if (s
->session
== NULL
3065 || (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
))
3068 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
3070 contextlen
, use_context
);
3073 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
3074 const char *label
, size_t llen
,
3075 const unsigned char *context
,
3078 if (s
->version
!= TLS1_3_VERSION
)
3081 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
3082 context
, contextlen
);
3085 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
3087 const unsigned char *session_id
= a
->session_id
;
3089 unsigned char tmp_storage
[4];
3091 if (a
->session_id_length
< sizeof(tmp_storage
)) {
3092 memset(tmp_storage
, 0, sizeof(tmp_storage
));
3093 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
3094 session_id
= tmp_storage
;
3098 ((unsigned long)session_id
[0]) |
3099 ((unsigned long)session_id
[1] << 8L) |
3100 ((unsigned long)session_id
[2] << 16L) |
3101 ((unsigned long)session_id
[3] << 24L);
3106 * NB: If this function (or indeed the hash function which uses a sort of
3107 * coarser function than this one) is changed, ensure
3108 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3109 * being able to construct an SSL_SESSION that will collide with any existing
3110 * session with a matching session ID.
3112 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
3114 if (a
->ssl_version
!= b
->ssl_version
)
3116 if (a
->session_id_length
!= b
->session_id_length
)
3118 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
3122 * These wrapper functions should remain rather than redeclaring
3123 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3124 * variable. The reason is that the functions aren't static, they're exposed
3128 SSL_CTX
*SSL_CTX_new_with_libctx(OPENSSL_CTX
*libctx
, const char *propq
,
3129 const SSL_METHOD
*meth
)
3131 SSL_CTX
*ret
= NULL
;
3134 SSLerr(0, SSL_R_NULL_SSL_METHOD_PASSED
);
3138 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
3141 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3142 SSLerr(0, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
3145 ret
= OPENSSL_zalloc(sizeof(*ret
));
3149 ret
->libctx
= libctx
;
3150 if (propq
!= NULL
) {
3151 ret
->propq
= OPENSSL_strdup(propq
);
3152 if (ret
->propq
== NULL
)
3157 ret
->min_proto_version
= 0;
3158 ret
->max_proto_version
= 0;
3159 ret
->mode
= SSL_MODE_AUTO_RETRY
;
3160 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
3161 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
3162 /* We take the system default. */
3163 ret
->session_timeout
= meth
->get_timeout();
3164 ret
->references
= 1;
3165 ret
->lock
= CRYPTO_THREAD_lock_new();
3166 if (ret
->lock
== NULL
) {
3167 SSLerr(0, ERR_R_MALLOC_FAILURE
);
3171 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3172 ret
->verify_mode
= SSL_VERIFY_NONE
;
3173 if ((ret
->cert
= ssl_cert_new()) == NULL
)
3176 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3177 if (ret
->sessions
== NULL
)
3179 ret
->cert_store
= X509_STORE_new();
3180 if (ret
->cert_store
== NULL
)
3182 #ifndef OPENSSL_NO_CT
3183 ret
->ctlog_store
= CTLOG_STORE_new_with_libctx(libctx
, propq
);
3184 if (ret
->ctlog_store
== NULL
)
3188 /* initialize cipher/digest methods table */
3189 if (!ssl_load_ciphers(ret
))
3191 /* initialise sig algs */
3192 if (!ssl_setup_sig_algs(ret
))
3196 if (!ssl_load_groups(ret
))
3199 if (!SSL_CTX_set_ciphersuites(ret
, OSSL_default_ciphersuites()))
3202 if (!ssl_create_cipher_list(ret
->method
,
3203 ret
->tls13_ciphersuites
,
3204 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3205 OSSL_default_cipher_list(), ret
->cert
)
3206 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3207 SSLerr(0, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3211 ret
->param
= X509_VERIFY_PARAM_new();
3212 if (ret
->param
== NULL
)
3216 * If these aren't available from the provider we'll get NULL returns.
3217 * That's fine but will cause errors later if SSLv3 is negotiated
3219 ret
->md5
= ssl_evp_md_fetch(libctx
, NID_md5
, propq
);
3220 ret
->sha1
= ssl_evp_md_fetch(libctx
, NID_sha1
, propq
);
3222 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
3225 if ((ret
->client_ca_names
= sk_X509_NAME_new_null()) == NULL
)
3228 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
3231 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
3234 /* No compression for DTLS */
3235 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3236 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3238 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3239 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3241 /* Setup RFC5077 ticket keys */
3242 if ((RAND_bytes_ex(libctx
, ret
->ext
.tick_key_name
,
3243 sizeof(ret
->ext
.tick_key_name
)) <= 0)
3244 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_hmac_key
,
3245 sizeof(ret
->ext
.secure
->tick_hmac_key
)) <= 0)
3246 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_aes_key
,
3247 sizeof(ret
->ext
.secure
->tick_aes_key
)) <= 0))
3248 ret
->options
|= SSL_OP_NO_TICKET
;
3250 if (RAND_priv_bytes_ex(libctx
, ret
->ext
.cookie_hmac_key
,
3251 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
3254 #ifndef OPENSSL_NO_SRP
3255 if (!SSL_CTX_SRP_CTX_init(ret
))
3258 #ifndef OPENSSL_NO_ENGINE
3259 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3260 # define eng_strx(x) #x
3261 # define eng_str(x) eng_strx(x)
3262 /* Use specific client engine automatically... ignore errors */
3265 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3268 ENGINE_load_builtin_engines();
3269 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3271 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3277 * Default is to connect to non-RI servers. When RI is more widely
3278 * deployed might change this.
3280 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
3282 * Disable compression by default to prevent CRIME. Applications can
3283 * re-enable compression by configuring
3284 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3285 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3286 * middlebox compatibility by default. This may be disabled by default in
3287 * a later OpenSSL version.
3289 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3291 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3294 * We cannot usefully set a default max_early_data here (which gets
3295 * propagated in SSL_new(), for the following reason: setting the
3296 * SSL field causes tls_construct_stoc_early_data() to tell the
3297 * client that early data will be accepted when constructing a TLS 1.3
3298 * session ticket, and the client will accordingly send us early data
3299 * when using that ticket (if the client has early data to send).
3300 * However, in order for the early data to actually be consumed by
3301 * the application, the application must also have calls to
3302 * SSL_read_early_data(); otherwise we'll just skip past the early data
3303 * and ignore it. So, since the application must add calls to
3304 * SSL_read_early_data(), we also require them to add
3305 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3306 * eliminating the bandwidth-wasting early data in the case described
3309 ret
->max_early_data
= 0;
3312 * Default recv_max_early_data is a fully loaded single record. Could be
3313 * split across multiple records in practice. We set this differently to
3314 * max_early_data so that, in the default case, we do not advertise any
3315 * support for early_data, but if a client were to send us some (e.g.
3316 * because of an old, stale ticket) then we will tolerate it and skip over
3319 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3321 /* By default we send two session tickets automatically in TLSv1.3 */
3322 ret
->num_tickets
= 2;
3324 ssl_ctx_system_config(ret
);
3328 SSLerr(0, ERR_R_MALLOC_FAILURE
);
3334 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
3336 return SSL_CTX_new_with_libctx(NULL
, NULL
, meth
);
3339 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3343 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3346 REF_PRINT_COUNT("SSL_CTX", ctx
);
3347 REF_ASSERT_ISNT(i
< 2);
3348 return ((i
> 1) ? 1 : 0);
3351 void SSL_CTX_free(SSL_CTX
*a
)
3359 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3360 REF_PRINT_COUNT("SSL_CTX", a
);
3363 REF_ASSERT_ISNT(i
< 0);
3365 X509_VERIFY_PARAM_free(a
->param
);
3366 dane_ctx_final(&a
->dane
);
3369 * Free internal session cache. However: the remove_cb() may reference
3370 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3371 * after the sessions were flushed.
3372 * As the ex_data handling routines might also touch the session cache,
3373 * the most secure solution seems to be: empty (flush) the cache, then
3374 * free ex_data, then finally free the cache.
3375 * (See ticket [openssl.org #212].)
3377 if (a
->sessions
!= NULL
)
3378 SSL_CTX_flush_sessions(a
, 0);
3380 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3381 lh_SSL_SESSION_free(a
->sessions
);
3382 X509_STORE_free(a
->cert_store
);
3383 #ifndef OPENSSL_NO_CT
3384 CTLOG_STORE_free(a
->ctlog_store
);
3386 sk_SSL_CIPHER_free(a
->cipher_list
);
3387 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3388 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3389 ssl_cert_free(a
->cert
);
3390 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3391 sk_X509_NAME_pop_free(a
->client_ca_names
, X509_NAME_free
);
3392 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3393 a
->comp_methods
= NULL
;
3394 #ifndef OPENSSL_NO_SRTP
3395 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3397 #ifndef OPENSSL_NO_SRP
3398 SSL_CTX_SRP_CTX_free(a
);
3400 #ifndef OPENSSL_NO_ENGINE
3401 ENGINE_finish(a
->client_cert_engine
);
3404 #ifndef OPENSSL_NO_EC
3405 OPENSSL_free(a
->ext
.ecpointformats
);
3407 OPENSSL_free(a
->ext
.supportedgroups
);
3408 OPENSSL_free(a
->ext
.alpn
);
3409 OPENSSL_secure_free(a
->ext
.secure
);
3411 ssl_evp_md_free(a
->md5
);
3412 ssl_evp_md_free(a
->sha1
);
3414 for (j
= 0; j
< SSL_ENC_NUM_IDX
; j
++)
3415 ssl_evp_cipher_free(a
->ssl_cipher_methods
[j
]);
3416 for (j
= 0; j
< SSL_MD_NUM_IDX
; j
++)
3417 ssl_evp_md_free(a
->ssl_digest_methods
[j
]);
3418 for (j
= 0; j
< a
->group_list_len
; j
++) {
3419 OPENSSL_free(a
->group_list
[j
].tlsname
);
3420 OPENSSL_free(a
->group_list
[j
].realname
);
3421 OPENSSL_free(a
->group_list
[j
].algorithm
);
3423 OPENSSL_free(a
->group_list
);
3425 OPENSSL_free(a
->sigalg_lookup_cache
);
3427 CRYPTO_THREAD_lock_free(a
->lock
);
3429 OPENSSL_free(a
->propq
);
3434 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3436 ctx
->default_passwd_callback
= cb
;
3439 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3441 ctx
->default_passwd_callback_userdata
= u
;
3444 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3446 return ctx
->default_passwd_callback
;
3449 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3451 return ctx
->default_passwd_callback_userdata
;
3454 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3456 s
->default_passwd_callback
= cb
;
3459 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3461 s
->default_passwd_callback_userdata
= u
;
3464 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3466 return s
->default_passwd_callback
;
3469 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3471 return s
->default_passwd_callback_userdata
;
3474 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3475 int (*cb
) (X509_STORE_CTX
*, void *),
3478 ctx
->app_verify_callback
= cb
;
3479 ctx
->app_verify_arg
= arg
;
3482 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3483 int (*cb
) (int, X509_STORE_CTX
*))
3485 ctx
->verify_mode
= mode
;
3486 ctx
->default_verify_callback
= cb
;
3489 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3491 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3494 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3496 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3499 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3501 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3504 void ssl_set_masks(SSL
*s
)
3507 uint32_t *pvalid
= s
->s3
.tmp
.valid_flags
;
3508 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3509 unsigned long mask_k
, mask_a
;
3510 #ifndef OPENSSL_NO_EC
3511 int have_ecc_cert
, ecdsa_ok
;
3516 #ifndef OPENSSL_NO_DH
3517 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3522 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3523 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3524 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3525 #ifndef OPENSSL_NO_EC
3526 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3531 OSSL_TRACE4(TLS_CIPHER
, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
3532 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3534 #ifndef OPENSSL_NO_GOST
3535 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3536 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
3537 mask_a
|= SSL_aGOST12
;
3539 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3540 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
3541 mask_a
|= SSL_aGOST12
;
3543 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3544 mask_k
|= SSL_kGOST
;
3545 mask_a
|= SSL_aGOST01
;
3556 * If we only have an RSA-PSS certificate allow RSA authentication
3557 * if TLS 1.2 and peer supports it.
3560 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3561 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3562 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3569 mask_a
|= SSL_aNULL
;
3572 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3573 * depending on the key usage extension.
3575 #ifndef OPENSSL_NO_EC
3576 if (have_ecc_cert
) {
3578 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3579 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3580 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3583 mask_a
|= SSL_aECDSA
;
3585 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3586 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3587 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3588 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3589 mask_a
|= SSL_aECDSA
;
3591 /* Allow Ed448 for TLS 1.2 if peer supports it */
3592 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
3593 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
3594 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3595 mask_a
|= SSL_aECDSA
;
3598 #ifndef OPENSSL_NO_EC
3599 mask_k
|= SSL_kECDHE
;
3602 #ifndef OPENSSL_NO_PSK
3605 if (mask_k
& SSL_kRSA
)
3606 mask_k
|= SSL_kRSAPSK
;
3607 if (mask_k
& SSL_kDHE
)
3608 mask_k
|= SSL_kDHEPSK
;
3609 if (mask_k
& SSL_kECDHE
)
3610 mask_k
|= SSL_kECDHEPSK
;
3613 s
->s3
.tmp
.mask_k
= mask_k
;
3614 s
->s3
.tmp
.mask_a
= mask_a
;
3617 #ifndef OPENSSL_NO_EC
3619 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3621 if (s
->s3
.tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3622 /* key usage, if present, must allow signing */
3623 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3624 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3625 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3629 return 1; /* all checks are ok */
3634 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3635 size_t *serverinfo_length
)
3637 CERT_PKEY
*cpk
= s
->s3
.tmp
.cert
;
3638 *serverinfo_length
= 0;
3640 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3643 *serverinfo
= cpk
->serverinfo
;
3644 *serverinfo_length
= cpk
->serverinfo_length
;
3648 void ssl_update_cache(SSL
*s
, int mode
)
3653 * If the session_id_length is 0, we are not supposed to cache it, and it
3654 * would be rather hard to do anyway :-)
3656 if (s
->session
->session_id_length
== 0)
3660 * If sid_ctx_length is 0 there is no specific application context
3661 * associated with this session, so when we try to resume it and
3662 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
3663 * indication that this is actually a session for the proper application
3664 * context, and the *handshake* will fail, not just the resumption attempt.
3665 * Do not cache (on the server) these sessions that are not resumable
3666 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
3668 if (s
->server
&& s
->session
->sid_ctx_length
== 0
3669 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
3672 i
= s
->session_ctx
->session_cache_mode
;
3674 && (!s
->hit
|| SSL_IS_TLS13(s
))) {
3676 * Add the session to the internal cache. In server side TLSv1.3 we
3677 * normally don't do this because by default it's a full stateless ticket
3678 * with only a dummy session id so there is no reason to cache it,
3680 * - we are doing early_data, in which case we cache so that we can
3682 * - the application has set a remove_session_cb so needs to know about
3683 * session timeout events
3684 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
3686 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
3687 && (!SSL_IS_TLS13(s
)
3689 || (s
->max_early_data
> 0
3690 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
3691 || s
->session_ctx
->remove_session_cb
!= NULL
3692 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
3693 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
3696 * Add the session to the external cache. We do this even in server side
3697 * TLSv1.3 without early data because some applications just want to
3698 * know about the creation of a session and aren't doing a full cache.
3700 if (s
->session_ctx
->new_session_cb
!= NULL
) {
3701 SSL_SESSION_up_ref(s
->session
);
3702 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3703 SSL_SESSION_free(s
->session
);
3707 /* auto flush every 255 connections */
3708 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3709 TSAN_QUALIFIER
int *stat
;
3710 if (mode
& SSL_SESS_CACHE_CLIENT
)
3711 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3713 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3714 if ((tsan_load(stat
) & 0xff) == 0xff)
3715 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3719 const SSL_METHOD
*SSL_CTX_get_ssl_method(const SSL_CTX
*ctx
)
3724 const SSL_METHOD
*SSL_get_ssl_method(const SSL
*s
)
3729 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3733 if (s
->method
!= meth
) {
3734 const SSL_METHOD
*sm
= s
->method
;
3735 int (*hf
) (SSL
*) = s
->handshake_func
;
3737 if (sm
->version
== meth
->version
)
3742 ret
= s
->method
->ssl_new(s
);
3745 if (hf
== sm
->ssl_connect
)
3746 s
->handshake_func
= meth
->ssl_connect
;
3747 else if (hf
== sm
->ssl_accept
)
3748 s
->handshake_func
= meth
->ssl_accept
;
3753 int SSL_get_error(const SSL
*s
, int i
)
3760 return SSL_ERROR_NONE
;
3763 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3764 * where we do encode the error
3766 if ((l
= ERR_peek_error()) != 0) {
3767 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3768 return SSL_ERROR_SYSCALL
;
3770 return SSL_ERROR_SSL
;
3773 if (SSL_want_read(s
)) {
3774 bio
= SSL_get_rbio(s
);
3775 if (BIO_should_read(bio
))
3776 return SSL_ERROR_WANT_READ
;
3777 else if (BIO_should_write(bio
))
3779 * This one doesn't make too much sense ... We never try to write
3780 * to the rbio, and an application program where rbio and wbio
3781 * are separate couldn't even know what it should wait for.
3782 * However if we ever set s->rwstate incorrectly (so that we have
3783 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3784 * wbio *are* the same, this test works around that bug; so it
3785 * might be safer to keep it.
3787 return SSL_ERROR_WANT_WRITE
;
3788 else if (BIO_should_io_special(bio
)) {
3789 reason
= BIO_get_retry_reason(bio
);
3790 if (reason
== BIO_RR_CONNECT
)
3791 return SSL_ERROR_WANT_CONNECT
;
3792 else if (reason
== BIO_RR_ACCEPT
)
3793 return SSL_ERROR_WANT_ACCEPT
;
3795 return SSL_ERROR_SYSCALL
; /* unknown */
3799 if (SSL_want_write(s
)) {
3800 /* Access wbio directly - in order to use the buffered bio if present */
3802 if (BIO_should_write(bio
))
3803 return SSL_ERROR_WANT_WRITE
;
3804 else if (BIO_should_read(bio
))
3806 * See above (SSL_want_read(s) with BIO_should_write(bio))
3808 return SSL_ERROR_WANT_READ
;
3809 else if (BIO_should_io_special(bio
)) {
3810 reason
= BIO_get_retry_reason(bio
);
3811 if (reason
== BIO_RR_CONNECT
)
3812 return SSL_ERROR_WANT_CONNECT
;
3813 else if (reason
== BIO_RR_ACCEPT
)
3814 return SSL_ERROR_WANT_ACCEPT
;
3816 return SSL_ERROR_SYSCALL
;
3819 if (SSL_want_x509_lookup(s
))
3820 return SSL_ERROR_WANT_X509_LOOKUP
;
3821 if (SSL_want_async(s
))
3822 return SSL_ERROR_WANT_ASYNC
;
3823 if (SSL_want_async_job(s
))
3824 return SSL_ERROR_WANT_ASYNC_JOB
;
3825 if (SSL_want_client_hello_cb(s
))
3826 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3828 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3829 (s
->s3
.warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3830 return SSL_ERROR_ZERO_RETURN
;
3832 return SSL_ERROR_SYSCALL
;
3835 static int ssl_do_handshake_intern(void *vargs
)
3837 struct ssl_async_args
*args
;
3840 args
= (struct ssl_async_args
*)vargs
;
3843 return s
->handshake_func(s
);
3846 int SSL_do_handshake(SSL
*s
)
3850 if (s
->handshake_func
== NULL
) {
3851 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3855 ossl_statem_check_finish_init(s
, -1);
3857 s
->method
->ssl_renegotiate_check(s
, 0);
3859 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3860 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3861 struct ssl_async_args args
;
3865 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3867 ret
= s
->handshake_func(s
);
3873 void SSL_set_accept_state(SSL
*s
)
3877 ossl_statem_clear(s
);
3878 s
->handshake_func
= s
->method
->ssl_accept
;
3882 void SSL_set_connect_state(SSL
*s
)
3886 ossl_statem_clear(s
);
3887 s
->handshake_func
= s
->method
->ssl_connect
;
3891 int ssl_undefined_function(SSL
*s
)
3893 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3897 int ssl_undefined_void_function(void)
3899 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3900 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3904 int ssl_undefined_const_function(const SSL
*s
)
3909 const SSL_METHOD
*ssl_bad_method(int ver
)
3911 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3915 const char *ssl_protocol_to_string(int version
)
3919 case TLS1_3_VERSION
:
3922 case TLS1_2_VERSION
:
3925 case TLS1_1_VERSION
:
3940 case DTLS1_2_VERSION
:
3948 const char *SSL_get_version(const SSL
*s
)
3950 return ssl_protocol_to_string(s
->version
);
3953 static int dup_ca_names(STACK_OF(X509_NAME
) **dst
, STACK_OF(X509_NAME
) *src
)
3955 STACK_OF(X509_NAME
) *sk
;
3964 if ((sk
= sk_X509_NAME_new_null()) == NULL
)
3966 for (i
= 0; i
< sk_X509_NAME_num(src
); i
++) {
3967 xn
= X509_NAME_dup(sk_X509_NAME_value(src
, i
));
3969 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
3972 if (sk_X509_NAME_insert(sk
, xn
, i
) == 0) {
3974 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
3983 SSL
*SSL_dup(SSL
*s
)
3988 /* If we're not quiescent, just up_ref! */
3989 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3990 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3995 * Otherwise, copy configuration state, and session if set.
3997 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
4000 if (s
->session
!= NULL
) {
4002 * Arranges to share the same session via up_ref. This "copies"
4003 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4005 if (!SSL_copy_session_id(ret
, s
))
4009 * No session has been established yet, so we have to expect that
4010 * s->cert or ret->cert will be changed later -- they should not both
4011 * point to the same object, and thus we can't use
4012 * SSL_copy_session_id.
4014 if (!SSL_set_ssl_method(ret
, s
->method
))
4017 if (s
->cert
!= NULL
) {
4018 ssl_cert_free(ret
->cert
);
4019 ret
->cert
= ssl_cert_dup(s
->cert
);
4020 if (ret
->cert
== NULL
)
4024 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
4025 (int)s
->sid_ctx_length
))
4029 if (!ssl_dane_dup(ret
, s
))
4031 ret
->version
= s
->version
;
4032 ret
->options
= s
->options
;
4033 ret
->min_proto_version
= s
->min_proto_version
;
4034 ret
->max_proto_version
= s
->max_proto_version
;
4035 ret
->mode
= s
->mode
;
4036 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
4037 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
4038 ret
->msg_callback
= s
->msg_callback
;
4039 ret
->msg_callback_arg
= s
->msg_callback_arg
;
4040 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
4041 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
4042 ret
->generate_session_id
= s
->generate_session_id
;
4044 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
4046 /* copy app data, a little dangerous perhaps */
4047 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
4050 ret
->server
= s
->server
;
4051 if (s
->handshake_func
) {
4053 SSL_set_accept_state(ret
);
4055 SSL_set_connect_state(ret
);
4057 ret
->shutdown
= s
->shutdown
;
4060 ret
->default_passwd_callback
= s
->default_passwd_callback
;
4061 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
4063 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
4065 /* dup the cipher_list and cipher_list_by_id stacks */
4066 if (s
->cipher_list
!= NULL
) {
4067 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
4070 if (s
->cipher_list_by_id
!= NULL
)
4071 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
4075 /* Dup the client_CA list */
4076 if (!dup_ca_names(&ret
->ca_names
, s
->ca_names
)
4077 || !dup_ca_names(&ret
->client_ca_names
, s
->client_ca_names
))
4087 void ssl_clear_cipher_ctx(SSL
*s
)
4089 if (s
->enc_read_ctx
!= NULL
) {
4090 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
4091 s
->enc_read_ctx
= NULL
;
4093 if (s
->enc_write_ctx
!= NULL
) {
4094 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
4095 s
->enc_write_ctx
= NULL
;
4097 #ifndef OPENSSL_NO_COMP
4098 COMP_CTX_free(s
->expand
);
4100 COMP_CTX_free(s
->compress
);
4105 X509
*SSL_get_certificate(const SSL
*s
)
4107 if (s
->cert
!= NULL
)
4108 return s
->cert
->key
->x509
;
4113 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
4115 if (s
->cert
!= NULL
)
4116 return s
->cert
->key
->privatekey
;
4121 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
4123 if (ctx
->cert
!= NULL
)
4124 return ctx
->cert
->key
->x509
;
4129 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
4131 if (ctx
->cert
!= NULL
)
4132 return ctx
->cert
->key
->privatekey
;
4137 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
4139 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
4140 return s
->session
->cipher
;
4144 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
4146 return s
->s3
.tmp
.new_cipher
;
4149 const COMP_METHOD
*SSL_get_current_compression(const SSL
*s
)
4151 #ifndef OPENSSL_NO_COMP
4152 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
4158 const COMP_METHOD
*SSL_get_current_expansion(const SSL
*s
)
4160 #ifndef OPENSSL_NO_COMP
4161 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
4167 int ssl_init_wbio_buffer(SSL
*s
)
4171 if (s
->bbio
!= NULL
) {
4172 /* Already buffered. */
4176 bbio
= BIO_new(BIO_f_buffer());
4177 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
4179 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
4183 s
->wbio
= BIO_push(bbio
, s
->wbio
);
4188 int ssl_free_wbio_buffer(SSL
*s
)
4190 /* callers ensure s is never null */
4191 if (s
->bbio
== NULL
)
4194 s
->wbio
= BIO_pop(s
->wbio
);
4201 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
4203 ctx
->quiet_shutdown
= mode
;
4206 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
4208 return ctx
->quiet_shutdown
;
4211 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
4213 s
->quiet_shutdown
= mode
;
4216 int SSL_get_quiet_shutdown(const SSL
*s
)
4218 return s
->quiet_shutdown
;
4221 void SSL_set_shutdown(SSL
*s
, int mode
)
4226 int SSL_get_shutdown(const SSL
*s
)
4231 int SSL_version(const SSL
*s
)
4236 int SSL_client_version(const SSL
*s
)
4238 return s
->client_version
;
4241 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
4246 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
4249 if (ssl
->ctx
== ctx
)
4252 ctx
= ssl
->session_ctx
;
4253 new_cert
= ssl_cert_dup(ctx
->cert
);
4254 if (new_cert
== NULL
) {
4258 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
4259 ssl_cert_free(new_cert
);
4263 ssl_cert_free(ssl
->cert
);
4264 ssl
->cert
= new_cert
;
4267 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4268 * so setter APIs must prevent invalid lengths from entering the system.
4270 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
4274 * If the session ID context matches that of the parent SSL_CTX,
4275 * inherit it from the new SSL_CTX as well. If however the context does
4276 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4277 * leave it unchanged.
4279 if ((ssl
->ctx
!= NULL
) &&
4280 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
4281 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
4282 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
4283 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
4286 SSL_CTX_up_ref(ctx
);
4287 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
4293 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
4295 return X509_STORE_set_default_paths_with_libctx(ctx
->cert_store
,
4296 ctx
->libctx
, ctx
->propq
);
4299 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
4301 X509_LOOKUP
*lookup
;
4303 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4307 /* We ignore errors, in case the directory doesn't exist */
4310 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4317 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4319 X509_LOOKUP
*lookup
;
4321 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4325 /* We ignore errors, in case the directory doesn't exist */
4328 X509_LOOKUP_load_file_with_libctx(lookup
, NULL
, X509_FILETYPE_DEFAULT
,
4329 ctx
->libctx
, ctx
->propq
);
4336 int SSL_CTX_set_default_verify_store(SSL_CTX
*ctx
)
4338 X509_LOOKUP
*lookup
;
4340 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_store());
4344 /* We ignore errors, in case the directory doesn't exist */
4347 X509_LOOKUP_add_store_with_libctx(lookup
, NULL
, ctx
->libctx
, ctx
->propq
);
4354 int SSL_CTX_load_verify_file(SSL_CTX
*ctx
, const char *CAfile
)
4356 return X509_STORE_load_file_with_libctx(ctx
->cert_store
, CAfile
,
4357 ctx
->libctx
, ctx
->propq
);
4360 int SSL_CTX_load_verify_dir(SSL_CTX
*ctx
, const char *CApath
)
4362 return X509_STORE_load_path(ctx
->cert_store
, CApath
);
4365 int SSL_CTX_load_verify_store(SSL_CTX
*ctx
, const char *CAstore
)
4367 return X509_STORE_load_store_with_libctx(ctx
->cert_store
, CAstore
,
4368 ctx
->libctx
, ctx
->propq
);
4371 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
4374 if (CAfile
== NULL
&& CApath
== NULL
)
4376 if (CAfile
!= NULL
&& !SSL_CTX_load_verify_file(ctx
, CAfile
))
4378 if (CApath
!= NULL
&& !SSL_CTX_load_verify_dir(ctx
, CApath
))
4383 void SSL_set_info_callback(SSL
*ssl
,
4384 void (*cb
) (const SSL
*ssl
, int type
, int val
))
4386 ssl
->info_callback
= cb
;
4390 * One compiler (Diab DCC) doesn't like argument names in returned function
4393 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
4396 return ssl
->info_callback
;
4399 void SSL_set_verify_result(SSL
*ssl
, long arg
)
4401 ssl
->verify_result
= arg
;
4404 long SSL_get_verify_result(const SSL
*ssl
)
4406 return ssl
->verify_result
;
4409 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4412 return sizeof(ssl
->s3
.client_random
);
4413 if (outlen
> sizeof(ssl
->s3
.client_random
))
4414 outlen
= sizeof(ssl
->s3
.client_random
);
4415 memcpy(out
, ssl
->s3
.client_random
, outlen
);
4419 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4422 return sizeof(ssl
->s3
.server_random
);
4423 if (outlen
> sizeof(ssl
->s3
.server_random
))
4424 outlen
= sizeof(ssl
->s3
.server_random
);
4425 memcpy(out
, ssl
->s3
.server_random
, outlen
);
4429 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4430 unsigned char *out
, size_t outlen
)
4433 return session
->master_key_length
;
4434 if (outlen
> session
->master_key_length
)
4435 outlen
= session
->master_key_length
;
4436 memcpy(out
, session
->master_key
, outlen
);
4440 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4443 if (len
> sizeof(sess
->master_key
))
4446 memcpy(sess
->master_key
, in
, len
);
4447 sess
->master_key_length
= len
;
4452 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4454 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4457 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4459 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4462 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4464 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4467 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4469 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4472 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4474 return ctx
->cert_store
;
4477 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4479 X509_STORE_free(ctx
->cert_store
);
4480 ctx
->cert_store
= store
;
4483 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4486 X509_STORE_up_ref(store
);
4487 SSL_CTX_set_cert_store(ctx
, store
);
4490 int SSL_want(const SSL
*s
)
4496 * \brief Set the callback for generating temporary DH keys.
4497 * \param ctx the SSL context.
4498 * \param dh the callback
4501 #ifndef OPENSSL_NO_DH
4502 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4503 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4506 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4509 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4512 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4516 #ifndef OPENSSL_NO_PSK
4517 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4519 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4520 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4523 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4524 if (identity_hint
!= NULL
) {
4525 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4526 if (ctx
->cert
->psk_identity_hint
== NULL
)
4529 ctx
->cert
->psk_identity_hint
= NULL
;
4533 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4538 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4539 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4542 OPENSSL_free(s
->cert
->psk_identity_hint
);
4543 if (identity_hint
!= NULL
) {
4544 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4545 if (s
->cert
->psk_identity_hint
== NULL
)
4548 s
->cert
->psk_identity_hint
= NULL
;
4552 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4554 if (s
== NULL
|| s
->session
== NULL
)
4556 return s
->session
->psk_identity_hint
;
4559 const char *SSL_get_psk_identity(const SSL
*s
)
4561 if (s
== NULL
|| s
->session
== NULL
)
4563 return s
->session
->psk_identity
;
4566 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4568 s
->psk_client_callback
= cb
;
4571 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4573 ctx
->psk_client_callback
= cb
;
4576 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4578 s
->psk_server_callback
= cb
;
4581 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4583 ctx
->psk_server_callback
= cb
;
4587 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4589 s
->psk_find_session_cb
= cb
;
4592 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4593 SSL_psk_find_session_cb_func cb
)
4595 ctx
->psk_find_session_cb
= cb
;
4598 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4600 s
->psk_use_session_cb
= cb
;
4603 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4604 SSL_psk_use_session_cb_func cb
)
4606 ctx
->psk_use_session_cb
= cb
;
4609 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4610 void (*cb
) (int write_p
, int version
,
4611 int content_type
, const void *buf
,
4612 size_t len
, SSL
*ssl
, void *arg
))
4614 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4617 void SSL_set_msg_callback(SSL
*ssl
,
4618 void (*cb
) (int write_p
, int version
,
4619 int content_type
, const void *buf
,
4620 size_t len
, SSL
*ssl
, void *arg
))
4622 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4625 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4626 int (*cb
) (SSL
*ssl
,
4630 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4631 (void (*)(void))cb
);
4634 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4635 int (*cb
) (SSL
*ssl
,
4636 int is_forward_secure
))
4638 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4639 (void (*)(void))cb
);
4642 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4643 size_t (*cb
) (SSL
*ssl
, int type
,
4644 size_t len
, void *arg
))
4646 ctx
->record_padding_cb
= cb
;
4649 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4651 ctx
->record_padding_arg
= arg
;
4654 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX
*ctx
)
4656 return ctx
->record_padding_arg
;
4659 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4661 /* block size of 0 or 1 is basically no padding */
4662 if (block_size
== 1)
4663 ctx
->block_padding
= 0;
4664 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4665 ctx
->block_padding
= block_size
;
4671 int SSL_set_record_padding_callback(SSL
*ssl
,
4672 size_t (*cb
) (SSL
*ssl
, int type
,
4673 size_t len
, void *arg
))
4677 b
= SSL_get_wbio(ssl
);
4678 if (b
== NULL
|| !BIO_get_ktls_send(b
)) {
4679 ssl
->record_padding_cb
= cb
;
4685 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4687 ssl
->record_padding_arg
= arg
;
4690 void *SSL_get_record_padding_callback_arg(const SSL
*ssl
)
4692 return ssl
->record_padding_arg
;
4695 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4697 /* block size of 0 or 1 is basically no padding */
4698 if (block_size
== 1)
4699 ssl
->block_padding
= 0;
4700 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4701 ssl
->block_padding
= block_size
;
4707 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
4709 s
->num_tickets
= num_tickets
;
4714 size_t SSL_get_num_tickets(const SSL
*s
)
4716 return s
->num_tickets
;
4719 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
4721 ctx
->num_tickets
= num_tickets
;
4726 size_t SSL_CTX_get_num_tickets(const SSL_CTX
*ctx
)
4728 return ctx
->num_tickets
;
4732 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4733 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4734 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4735 * Returns the newly allocated ctx;
4738 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4740 ssl_clear_hash_ctx(hash
);
4741 *hash
= EVP_MD_CTX_new();
4742 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4743 EVP_MD_CTX_free(*hash
);
4750 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4753 EVP_MD_CTX_free(*hash
);
4757 /* Retrieve handshake hashes */
4758 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4761 EVP_MD_CTX
*ctx
= NULL
;
4762 EVP_MD_CTX
*hdgst
= s
->s3
.handshake_dgst
;
4763 int hashleni
= EVP_MD_CTX_size(hdgst
);
4766 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4767 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4768 ERR_R_INTERNAL_ERROR
);
4772 ctx
= EVP_MD_CTX_new();
4776 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4777 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4778 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4779 ERR_R_INTERNAL_ERROR
);
4783 *hashlen
= hashleni
;
4787 EVP_MD_CTX_free(ctx
);
4791 int SSL_session_reused(const SSL
*s
)
4796 int SSL_is_server(const SSL
*s
)
4801 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
4802 void SSL_set_debug(SSL
*s
, int debug
)
4804 /* Old function was do-nothing anyway... */
4810 void SSL_set_security_level(SSL
*s
, int level
)
4812 s
->cert
->sec_level
= level
;
4815 int SSL_get_security_level(const SSL
*s
)
4817 return s
->cert
->sec_level
;
4820 void SSL_set_security_callback(SSL
*s
,
4821 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4822 int op
, int bits
, int nid
,
4823 void *other
, void *ex
))
4825 s
->cert
->sec_cb
= cb
;
4828 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4829 const SSL_CTX
*ctx
, int op
,
4830 int bits
, int nid
, void *other
,
4832 return s
->cert
->sec_cb
;
4835 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4837 s
->cert
->sec_ex
= ex
;
4840 void *SSL_get0_security_ex_data(const SSL
*s
)
4842 return s
->cert
->sec_ex
;
4845 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4847 ctx
->cert
->sec_level
= level
;
4850 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4852 return ctx
->cert
->sec_level
;
4855 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4856 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4857 int op
, int bits
, int nid
,
4858 void *other
, void *ex
))
4860 ctx
->cert
->sec_cb
= cb
;
4863 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4869 return ctx
->cert
->sec_cb
;
4872 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4874 ctx
->cert
->sec_ex
= ex
;
4877 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4879 return ctx
->cert
->sec_ex
;
4883 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4884 * can return unsigned long, instead of the generic long return value from the
4885 * control interface.
4887 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4889 return ctx
->options
;
4892 unsigned long SSL_get_options(const SSL
*s
)
4897 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4899 return ctx
->options
|= op
;
4902 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4904 return s
->options
|= op
;
4907 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4909 return ctx
->options
&= ~op
;
4912 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4914 return s
->options
&= ~op
;
4917 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4919 return s
->verified_chain
;
4922 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4924 #ifndef OPENSSL_NO_CT
4927 * Moves SCTs from the |src| stack to the |dst| stack.
4928 * The source of each SCT will be set to |origin|.
4929 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4931 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4933 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4934 sct_source_t origin
)
4940 *dst
= sk_SCT_new_null();
4942 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4947 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4948 if (SCT_set_source(sct
, origin
) != 1)
4951 if (sk_SCT_push(*dst
, sct
) <= 0)
4959 sk_SCT_push(src
, sct
); /* Put the SCT back */
4964 * Look for data collected during ServerHello and parse if found.
4965 * Returns the number of SCTs extracted.
4967 static int ct_extract_tls_extension_scts(SSL
*s
)
4969 int scts_extracted
= 0;
4971 if (s
->ext
.scts
!= NULL
) {
4972 const unsigned char *p
= s
->ext
.scts
;
4973 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4975 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4977 SCT_LIST_free(scts
);
4980 return scts_extracted
;
4984 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4985 * contains an SCT X509 extension. They will be stored in |s->scts|.
4987 * - The number of SCTs extracted, assuming an OCSP response exists.
4988 * - 0 if no OCSP response exists or it contains no SCTs.
4989 * - A negative integer if an error occurs.
4991 static int ct_extract_ocsp_response_scts(SSL
*s
)
4993 # ifndef OPENSSL_NO_OCSP
4994 int scts_extracted
= 0;
4995 const unsigned char *p
;
4996 OCSP_BASICRESP
*br
= NULL
;
4997 OCSP_RESPONSE
*rsp
= NULL
;
4998 STACK_OF(SCT
) *scts
= NULL
;
5001 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
5004 p
= s
->ext
.ocsp
.resp
;
5005 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
5009 br
= OCSP_response_get1_basic(rsp
);
5013 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
5014 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
5020 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
5022 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
5023 if (scts_extracted
< 0)
5027 SCT_LIST_free(scts
);
5028 OCSP_BASICRESP_free(br
);
5029 OCSP_RESPONSE_free(rsp
);
5030 return scts_extracted
;
5032 /* Behave as if no OCSP response exists */
5038 * Attempts to extract SCTs from the peer certificate.
5039 * Return the number of SCTs extracted, or a negative integer if an error
5042 static int ct_extract_x509v3_extension_scts(SSL
*s
)
5044 int scts_extracted
= 0;
5045 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5048 STACK_OF(SCT
) *scts
=
5049 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
5052 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
5054 SCT_LIST_free(scts
);
5057 return scts_extracted
;
5061 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
5062 * response (if it exists) and X509v3 extensions in the certificate.
5063 * Returns NULL if an error occurs.
5065 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
5067 if (!s
->scts_parsed
) {
5068 if (ct_extract_tls_extension_scts(s
) < 0 ||
5069 ct_extract_ocsp_response_scts(s
) < 0 ||
5070 ct_extract_x509v3_extension_scts(s
) < 0)
5080 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
5081 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5086 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
5087 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5089 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
5092 for (i
= 0; i
< count
; ++i
) {
5093 SCT
*sct
= sk_SCT_value(scts
, i
);
5094 int status
= SCT_get_validation_status(sct
);
5096 if (status
== SCT_VALIDATION_STATUS_VALID
)
5099 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
5103 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
5107 * Since code exists that uses the custom extension handler for CT, look
5108 * for this and throw an error if they have already registered to use CT.
5110 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
5111 TLSEXT_TYPE_signed_certificate_timestamp
))
5113 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
5114 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5118 if (callback
!= NULL
) {
5120 * If we are validating CT, then we MUST accept SCTs served via OCSP
5122 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
5126 s
->ct_validation_callback
= callback
;
5127 s
->ct_validation_callback_arg
= arg
;
5132 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
5133 ssl_ct_validation_cb callback
, void *arg
)
5136 * Since code exists that uses the custom extension handler for CT, look for
5137 * this and throw an error if they have already registered to use CT.
5139 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
5140 TLSEXT_TYPE_signed_certificate_timestamp
))
5142 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
5143 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5147 ctx
->ct_validation_callback
= callback
;
5148 ctx
->ct_validation_callback_arg
= arg
;
5152 int SSL_ct_is_enabled(const SSL
*s
)
5154 return s
->ct_validation_callback
!= NULL
;
5157 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
5159 return ctx
->ct_validation_callback
!= NULL
;
5162 int ssl_validate_ct(SSL
*s
)
5165 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5167 SSL_DANE
*dane
= &s
->dane
;
5168 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
5169 const STACK_OF(SCT
) *scts
;
5172 * If no callback is set, the peer is anonymous, or its chain is invalid,
5173 * skip SCT validation - just return success. Applications that continue
5174 * handshakes without certificates, with unverified chains, or pinned leaf
5175 * certificates are outside the scope of the WebPKI and CT.
5177 * The above exclusions notwithstanding the vast majority of peers will
5178 * have rather ordinary certificate chains validated by typical
5179 * applications that perform certificate verification and therefore will
5180 * process SCTs when enabled.
5182 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
5183 s
->verify_result
!= X509_V_OK
||
5184 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
5188 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
5189 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
5191 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
5192 switch (dane
->mtlsa
->usage
) {
5193 case DANETLS_USAGE_DANE_TA
:
5194 case DANETLS_USAGE_DANE_EE
:
5199 ctx
= CT_POLICY_EVAL_CTX_new_with_libctx(s
->ctx
->libctx
, s
->ctx
->propq
);
5201 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
5202 ERR_R_MALLOC_FAILURE
);
5206 issuer
= sk_X509_value(s
->verified_chain
, 1);
5207 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
5208 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
5209 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
5210 CT_POLICY_EVAL_CTX_set_time(
5211 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
5213 scts
= SSL_get0_peer_scts(s
);
5216 * This function returns success (> 0) only when all the SCTs are valid, 0
5217 * when some are invalid, and < 0 on various internal errors (out of
5218 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
5219 * reason to abort the handshake, that decision is up to the callback.
5220 * Therefore, we error out only in the unexpected case that the return
5221 * value is negative.
5223 * XXX: One might well argue that the return value of this function is an
5224 * unfortunate design choice. Its job is only to determine the validation
5225 * status of each of the provided SCTs. So long as it correctly separates
5226 * the wheat from the chaff it should return success. Failure in this case
5227 * ought to correspond to an inability to carry out its duties.
5229 if (SCT_LIST_validate(scts
, ctx
) < 0) {
5230 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
5231 SSL_R_SCT_VERIFICATION_FAILED
);
5235 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
5237 ret
= 0; /* This function returns 0 on failure */
5239 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
5240 SSL_R_CALLBACK_FAILED
);
5243 CT_POLICY_EVAL_CTX_free(ctx
);
5245 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
5246 * failure return code here. Also the application may wish the complete
5247 * the handshake, and then disconnect cleanly at a higher layer, after
5248 * checking the verification status of the completed connection.
5250 * We therefore force a certificate verification failure which will be
5251 * visible via SSL_get_verify_result() and cached as part of any resumed
5254 * Note: the permissive callback is for information gathering only, always
5255 * returns success, and does not affect verification status. Only the
5256 * strict callback or a custom application-specified callback can trigger
5257 * connection failure or record a verification error.
5260 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
5264 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
5266 switch (validation_mode
) {
5268 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
5270 case SSL_CT_VALIDATION_PERMISSIVE
:
5271 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
5272 case SSL_CT_VALIDATION_STRICT
:
5273 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
5277 int SSL_enable_ct(SSL
*s
, int validation_mode
)
5279 switch (validation_mode
) {
5281 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
5283 case SSL_CT_VALIDATION_PERMISSIVE
:
5284 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
5285 case SSL_CT_VALIDATION_STRICT
:
5286 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
5290 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
5292 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
5295 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
5297 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
5300 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
5302 CTLOG_STORE_free(ctx
->ctlog_store
);
5303 ctx
->ctlog_store
= logs
;
5306 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
5308 return ctx
->ctlog_store
;
5311 #endif /* OPENSSL_NO_CT */
5313 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
5316 c
->client_hello_cb
= cb
;
5317 c
->client_hello_cb_arg
= arg
;
5320 int SSL_client_hello_isv2(SSL
*s
)
5322 if (s
->clienthello
== NULL
)
5324 return s
->clienthello
->isv2
;
5327 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
5329 if (s
->clienthello
== NULL
)
5331 return s
->clienthello
->legacy_version
;
5334 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
5336 if (s
->clienthello
== NULL
)
5339 *out
= s
->clienthello
->random
;
5340 return SSL3_RANDOM_SIZE
;
5343 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
5345 if (s
->clienthello
== NULL
)
5348 *out
= s
->clienthello
->session_id
;
5349 return s
->clienthello
->session_id_len
;
5352 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
5354 if (s
->clienthello
== NULL
)
5357 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
5358 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
5361 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
5363 if (s
->clienthello
== NULL
)
5366 *out
= s
->clienthello
->compressions
;
5367 return s
->clienthello
->compressions_len
;
5370 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
5376 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
5378 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5379 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5388 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
5389 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT
,
5390 ERR_R_MALLOC_FAILURE
);
5393 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
5394 ext
= s
->clienthello
->pre_proc_exts
+ i
;
5396 if (ext
->received_order
>= num
)
5398 present
[ext
->received_order
] = ext
->type
;
5405 OPENSSL_free(present
);
5409 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
5415 if (s
->clienthello
== NULL
)
5417 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
5418 r
= s
->clienthello
->pre_proc_exts
+ i
;
5419 if (r
->present
&& r
->type
== type
) {
5421 *out
= PACKET_data(&r
->data
);
5423 *outlen
= PACKET_remaining(&r
->data
);
5430 int SSL_free_buffers(SSL
*ssl
)
5432 RECORD_LAYER
*rl
= &ssl
->rlayer
;
5434 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
5437 RECORD_LAYER_release(rl
);
5441 int SSL_alloc_buffers(SSL
*ssl
)
5443 return ssl3_setup_buffers(ssl
);
5446 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
5448 ctx
->keylog_callback
= cb
;
5451 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
5453 return ctx
->keylog_callback
;
5456 static int nss_keylog_int(const char *prefix
,
5458 const uint8_t *parameter_1
,
5459 size_t parameter_1_len
,
5460 const uint8_t *parameter_2
,
5461 size_t parameter_2_len
)
5464 char *cursor
= NULL
;
5469 if (ssl
->ctx
->keylog_callback
== NULL
)
5473 * Our output buffer will contain the following strings, rendered with
5474 * space characters in between, terminated by a NULL character: first the
5475 * prefix, then the first parameter, then the second parameter. The
5476 * meaning of each parameter depends on the specific key material being
5477 * logged. Note that the first and second parameters are encoded in
5478 * hexadecimal, so we need a buffer that is twice their lengths.
5480 prefix_len
= strlen(prefix
);
5481 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
5482 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5483 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5484 ERR_R_MALLOC_FAILURE
);
5488 strcpy(cursor
, prefix
);
5489 cursor
+= prefix_len
;
5492 for (i
= 0; i
< parameter_1_len
; i
++) {
5493 sprintf(cursor
, "%02x", parameter_1
[i
]);
5498 for (i
= 0; i
< parameter_2_len
; i
++) {
5499 sprintf(cursor
, "%02x", parameter_2
[i
]);
5504 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5505 OPENSSL_clear_free(out
, out_len
);
5510 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5511 const uint8_t *encrypted_premaster
,
5512 size_t encrypted_premaster_len
,
5513 const uint8_t *premaster
,
5514 size_t premaster_len
)
5516 if (encrypted_premaster_len
< 8) {
5517 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5518 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5522 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5523 return nss_keylog_int("RSA",
5525 encrypted_premaster
,
5531 int ssl_log_secret(SSL
*ssl
,
5533 const uint8_t *secret
,
5536 return nss_keylog_int(label
,
5538 ssl
->s3
.client_random
,
5544 #define SSLV2_CIPHER_LEN 3
5546 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5550 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5552 if (PACKET_remaining(cipher_suites
) == 0) {
5553 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5554 SSL_R_NO_CIPHERS_SPECIFIED
);
5558 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5559 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5560 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5564 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
5565 s
->s3
.tmp
.ciphers_raw
= NULL
;
5566 s
->s3
.tmp
.ciphers_rawlen
= 0;
5569 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5570 PACKET sslv2ciphers
= *cipher_suites
;
5571 unsigned int leadbyte
;
5575 * We store the raw ciphers list in SSLv3+ format so we need to do some
5576 * preprocessing to convert the list first. If there are any SSLv2 only
5577 * ciphersuites with a non-zero leading byte then we are going to
5578 * slightly over allocate because we won't store those. But that isn't a
5581 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5582 s
->s3
.tmp
.ciphers_raw
= raw
;
5584 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5585 ERR_R_MALLOC_FAILURE
);
5588 for (s
->s3
.tmp
.ciphers_rawlen
= 0;
5589 PACKET_remaining(&sslv2ciphers
) > 0;
5590 raw
+= TLS_CIPHER_LEN
) {
5591 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5593 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5596 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5597 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5599 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
5600 s
->s3
.tmp
.ciphers_raw
= NULL
;
5601 s
->s3
.tmp
.ciphers_rawlen
= 0;
5605 s
->s3
.tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5607 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
.tmp
.ciphers_raw
,
5608 &s
->s3
.tmp
.ciphers_rawlen
)) {
5609 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5610 ERR_R_INTERNAL_ERROR
);
5616 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5617 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5618 STACK_OF(SSL_CIPHER
) **scsvs
)
5622 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5624 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5627 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5628 STACK_OF(SSL_CIPHER
) **skp
,
5629 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5630 int sslv2format
, int fatal
)
5632 const SSL_CIPHER
*c
;
5633 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5634 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5636 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5637 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5639 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5641 if (PACKET_remaining(cipher_suites
) == 0) {
5643 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5644 SSL_R_NO_CIPHERS_SPECIFIED
);
5646 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5650 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5652 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5653 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5655 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5656 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5660 sk
= sk_SSL_CIPHER_new_null();
5661 scsvs
= sk_SSL_CIPHER_new_null();
5662 if (sk
== NULL
|| scsvs
== NULL
) {
5664 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5665 ERR_R_MALLOC_FAILURE
);
5667 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5671 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5673 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5674 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5675 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5677 if (sslv2format
&& cipher
[0] != '\0')
5680 /* For SSLv2-compat, ignore leading 0-byte. */
5681 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5683 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5684 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5686 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5687 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5689 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5694 if (PACKET_remaining(cipher_suites
) > 0) {
5696 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5699 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5706 sk_SSL_CIPHER_free(sk
);
5707 if (scsvs_out
!= NULL
)
5710 sk_SSL_CIPHER_free(scsvs
);
5713 sk_SSL_CIPHER_free(sk
);
5714 sk_SSL_CIPHER_free(scsvs
);
5718 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5720 ctx
->max_early_data
= max_early_data
;
5725 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5727 return ctx
->max_early_data
;
5730 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5732 s
->max_early_data
= max_early_data
;
5737 uint32_t SSL_get_max_early_data(const SSL
*s
)
5739 return s
->max_early_data
;
5742 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
5744 ctx
->recv_max_early_data
= recv_max_early_data
;
5749 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
5751 return ctx
->recv_max_early_data
;
5754 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
5756 s
->recv_max_early_data
= recv_max_early_data
;
5761 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
5763 return s
->recv_max_early_data
;
5766 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5768 /* Return any active Max Fragment Len extension */
5769 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5770 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5772 /* return current SSL connection setting */
5773 return ssl
->max_send_fragment
;
5776 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5778 /* Return a value regarding an active Max Fragment Len extension */
5779 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5780 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5781 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5783 /* else limit |split_send_fragment| to current |max_send_fragment| */
5784 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5785 return ssl
->max_send_fragment
;
5787 /* return current SSL connection setting */
5788 return ssl
->split_send_fragment
;
5791 int SSL_stateless(SSL
*s
)
5795 /* Ensure there is no state left over from a previous invocation */
5801 s
->s3
.flags
|= TLS1_FLAGS_STATELESS
;
5802 ret
= SSL_accept(s
);
5803 s
->s3
.flags
&= ~TLS1_FLAGS_STATELESS
;
5805 if (ret
> 0 && s
->ext
.cookieok
)
5808 if (s
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(s
))
5814 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
5816 ctx
->pha_enabled
= val
;
5819 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
5821 ssl
->pha_enabled
= val
;
5824 int SSL_verify_client_post_handshake(SSL
*ssl
)
5826 if (!SSL_IS_TLS13(ssl
)) {
5827 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5831 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5835 if (!SSL_is_init_finished(ssl
)) {
5836 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5840 switch (ssl
->post_handshake_auth
) {
5842 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5845 case SSL_PHA_EXT_SENT
:
5846 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5848 case SSL_PHA_EXT_RECEIVED
:
5850 case SSL_PHA_REQUEST_PENDING
:
5851 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5853 case SSL_PHA_REQUESTED
:
5854 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5858 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5860 /* checks verify_mode and algorithm_auth */
5861 if (!send_certificate_request(ssl
)) {
5862 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5863 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5867 ossl_statem_set_in_init(ssl
, 1);
5871 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
5872 SSL_CTX_generate_session_ticket_fn gen_cb
,
5873 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
5876 ctx
->generate_ticket_cb
= gen_cb
;
5877 ctx
->decrypt_ticket_cb
= dec_cb
;
5878 ctx
->ticket_cb_data
= arg
;
5882 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
5883 SSL_allow_early_data_cb_fn cb
,
5886 ctx
->allow_early_data_cb
= cb
;
5887 ctx
->allow_early_data_cb_data
= arg
;
5890 void SSL_set_allow_early_data_cb(SSL
*s
,
5891 SSL_allow_early_data_cb_fn cb
,
5894 s
->allow_early_data_cb
= cb
;
5895 s
->allow_early_data_cb_data
= arg
;
5898 const EVP_CIPHER
*ssl_evp_cipher_fetch(OPENSSL_CTX
*libctx
,
5900 const char *properties
)
5904 #ifndef OPENSSL_NO_ENGINE
5908 * If there is an Engine available for this cipher we use the "implicit"
5909 * form to ensure we use that engine later.
5911 eng
= ENGINE_get_cipher_engine(nid
);
5914 return EVP_get_cipherbynid(nid
);
5918 /* Otherwise we do an explicit fetch. This may fail and that could be ok */
5920 ciph
= EVP_CIPHER_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
5926 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
)
5928 /* Don't up-ref an implicit EVP_CIPHER */
5929 if (EVP_CIPHER_provider(cipher
) == NULL
)
5933 * The cipher was explicitly fetched and therefore it is safe to cast
5936 return EVP_CIPHER_up_ref((EVP_CIPHER
*)cipher
);
5939 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
)
5944 if (EVP_CIPHER_provider(cipher
) != NULL
) {
5946 * The cipher was explicitly fetched and therefore it is safe to cast
5949 EVP_CIPHER_free((EVP_CIPHER
*)cipher
);
5953 const EVP_MD
*ssl_evp_md_fetch(OPENSSL_CTX
*libctx
,
5955 const char *properties
)
5959 #ifndef OPENSSL_NO_ENGINE
5963 * If there is an Engine available for this digest we use the "implicit"
5964 * form to ensure we use that engine later.
5966 eng
= ENGINE_get_digest_engine(nid
);
5969 return EVP_get_digestbynid(nid
);
5973 /* Otherwise we do an explicit fetch */
5975 md
= EVP_MD_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
5980 int ssl_evp_md_up_ref(const EVP_MD
*md
)
5982 /* Don't up-ref an implicit EVP_MD */
5983 if (EVP_MD_provider(md
) == NULL
)
5987 * The digest was explicitly fetched and therefore it is safe to cast
5990 return EVP_MD_up_ref((EVP_MD
*)md
);
5993 void ssl_evp_md_free(const EVP_MD
*md
)
5998 if (EVP_MD_provider(md
) != NULL
) {
6000 * The digest was explicitly fetched and therefore it is safe to cast
6003 EVP_MD_free((EVP_MD
*)md
);