2 * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
13 #include "ssl_local.h"
14 #include "internal/e_os.h"
15 #include <openssl/objects.h>
16 #include <openssl/x509v3.h>
17 #include <openssl/rand.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include <openssl/trace.h>
24 #include <openssl/core_names.h>
25 #include "internal/cryptlib.h"
26 #include "internal/refcount.h"
27 #include "internal/ktls.h"
29 static int ssl_undefined_function_1(SSL_CONNECTION
*sc
, SSL3_RECORD
*r
, size_t s
,
30 int t
, SSL_MAC_BUF
*mac
, size_t macsize
)
32 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
35 static int ssl_undefined_function_2(SSL_CONNECTION
*sc
, SSL3_RECORD
*r
,
36 unsigned char *s
, int t
)
38 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
41 static int ssl_undefined_function_3(SSL_CONNECTION
*sc
, unsigned char *r
,
42 unsigned char *s
, size_t t
, size_t *u
)
44 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
47 static int ssl_undefined_function_4(SSL_CONNECTION
*sc
, int r
)
49 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
52 static size_t ssl_undefined_function_5(SSL_CONNECTION
*sc
, const char *r
,
53 size_t s
, unsigned char *t
)
55 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
58 static int ssl_undefined_function_6(int r
)
60 return ssl_undefined_function(NULL
);
63 static int ssl_undefined_function_7(SSL_CONNECTION
*sc
, unsigned char *r
,
64 size_t s
, const char *t
, size_t u
,
65 const unsigned char *v
, size_t w
, int x
)
67 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
70 static int ssl_undefined_function_8(SSL_CONNECTION
*sc
)
72 return ssl_undefined_function(SSL_CONNECTION_GET_SSL(sc
));
75 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
76 ssl_undefined_function_1
,
77 ssl_undefined_function_2
,
78 ssl_undefined_function_8
,
79 ssl_undefined_function_3
,
80 ssl_undefined_function_4
,
81 ssl_undefined_function_5
,
82 NULL
, /* client_finished_label */
83 0, /* client_finished_label_len */
84 NULL
, /* server_finished_label */
85 0, /* server_finished_label_len */
86 ssl_undefined_function_6
,
87 ssl_undefined_function_7
,
90 struct ssl_async_args
{
94 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
96 int (*func_read
) (SSL
*, void *, size_t, size_t *);
97 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
98 int (*func_other
) (SSL
*);
102 static const struct {
108 DANETLS_MATCHING_FULL
, 0, NID_undef
111 DANETLS_MATCHING_2256
, 1, NID_sha256
114 DANETLS_MATCHING_2512
, 2, NID_sha512
118 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
120 const EVP_MD
**mdevp
;
122 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
123 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
126 if (dctx
->mdevp
!= NULL
)
129 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
130 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
132 if (mdord
== NULL
|| mdevp
== NULL
) {
135 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
139 /* Install default entries */
140 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
143 if (dane_mds
[i
].nid
== NID_undef
||
144 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
146 mdevp
[dane_mds
[i
].mtype
] = md
;
147 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
157 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
159 OPENSSL_free(dctx
->mdevp
);
162 OPENSSL_free(dctx
->mdord
);
167 static void tlsa_free(danetls_record
*t
)
171 OPENSSL_free(t
->data
);
172 EVP_PKEY_free(t
->spki
);
176 static void dane_final(SSL_DANE
*dane
)
178 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
181 OSSL_STACK_OF_X509_free(dane
->certs
);
184 X509_free(dane
->mcert
);
192 * dane_copy - Copy dane configuration, sans verification state.
194 static int ssl_dane_dup(SSL_CONNECTION
*to
, SSL_CONNECTION
*from
)
199 if (!DANETLS_ENABLED(&from
->dane
))
202 num
= sk_danetls_record_num(from
->dane
.trecs
);
203 dane_final(&to
->dane
);
204 to
->dane
.flags
= from
->dane
.flags
;
205 to
->dane
.dctx
= &SSL_CONNECTION_GET_CTX(to
)->dane
;
206 to
->dane
.trecs
= sk_danetls_record_new_reserve(NULL
, num
);
208 if (to
->dane
.trecs
== NULL
) {
209 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
213 for (i
= 0; i
< num
; ++i
) {
214 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
216 if (SSL_dane_tlsa_add(SSL_CONNECTION_GET_SSL(to
), t
->usage
,
217 t
->selector
, t
->mtype
, t
->data
, t
->dlen
) <= 0)
223 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
224 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
228 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
229 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
233 if (mtype
> dctx
->mdmax
) {
234 const EVP_MD
**mdevp
;
236 int n
= ((int)mtype
) + 1;
238 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
240 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
245 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
247 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
252 /* Zero-fill any gaps */
253 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
261 dctx
->mdevp
[mtype
] = md
;
262 /* Coerce ordinal of disabled matching types to 0 */
263 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
268 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
270 if (mtype
> dane
->dctx
->mdmax
)
272 return dane
->dctx
->mdevp
[mtype
];
275 static int dane_tlsa_add(SSL_DANE
*dane
,
278 uint8_t mtype
, const unsigned char *data
, size_t dlen
)
281 const EVP_MD
*md
= NULL
;
282 int ilen
= (int)dlen
;
286 if (dane
->trecs
== NULL
) {
287 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_NOT_ENABLED
);
291 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
292 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
296 if (usage
> DANETLS_USAGE_LAST
) {
297 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
301 if (selector
> DANETLS_SELECTOR_LAST
) {
302 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
306 if (mtype
!= DANETLS_MATCHING_FULL
) {
307 md
= tlsa_md_get(dane
, mtype
);
309 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
314 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_get_size(md
)) {
315 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
319 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_NULL_DATA
);
323 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
324 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
329 t
->selector
= selector
;
331 t
->data
= OPENSSL_malloc(dlen
);
332 if (t
->data
== NULL
) {
334 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
337 memcpy(t
->data
, data
, dlen
);
340 /* Validate and cache full certificate or public key */
341 if (mtype
== DANETLS_MATCHING_FULL
) {
342 const unsigned char *p
= data
;
344 EVP_PKEY
*pkey
= NULL
;
347 case DANETLS_SELECTOR_CERT
:
348 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
349 dlen
!= (size_t)(p
- data
)) {
351 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
354 if (X509_get0_pubkey(cert
) == NULL
) {
356 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
360 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
366 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
367 * records that contain full certificates of trust-anchors that are
368 * not present in the wire chain. For usage PKIX-TA(0), we augment
369 * the chain with untrusted Full(0) certificates from DNS, in case
370 * they are missing from the chain.
372 if ((dane
->certs
== NULL
&&
373 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
374 !sk_X509_push(dane
->certs
, cert
)) {
375 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
382 case DANETLS_SELECTOR_SPKI
:
383 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
384 dlen
!= (size_t)(p
- data
)) {
386 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
391 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
392 * records that contain full bare keys of trust-anchors that are
393 * not present in the wire chain.
395 if (usage
== DANETLS_USAGE_DANE_TA
)
404 * Find the right insertion point for the new record.
406 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
407 * they can be processed first, as they require no chain building, and no
408 * expiration or hostname checks. Because DANE-EE(3) is numerically
409 * largest, this is accomplished via descending sort by "usage".
411 * We also sort in descending order by matching ordinal to simplify
412 * the implementation of digest agility in the verification code.
414 * The choice of order for the selector is not significant, so we
415 * use the same descending order for consistency.
417 num
= sk_danetls_record_num(dane
->trecs
);
418 for (i
= 0; i
< num
; ++i
) {
419 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
421 if (rec
->usage
> usage
)
423 if (rec
->usage
< usage
)
425 if (rec
->selector
> selector
)
427 if (rec
->selector
< selector
)
429 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
434 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
436 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
439 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
445 * Return 0 if there is only one version configured and it was disabled
446 * at configure time. Return 1 otherwise.
448 static int ssl_check_allowed_versions(int min_version
, int max_version
)
450 int minisdtls
= 0, maxisdtls
= 0;
452 /* Figure out if we're doing DTLS versions or TLS versions */
453 if (min_version
== DTLS1_BAD_VER
454 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
456 if (max_version
== DTLS1_BAD_VER
457 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
459 /* A wildcard version of 0 could be DTLS or TLS. */
460 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
461 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
462 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
466 if (minisdtls
|| maxisdtls
) {
467 /* Do DTLS version checks. */
468 if (min_version
== 0)
469 /* Ignore DTLS1_BAD_VER */
470 min_version
= DTLS1_VERSION
;
471 if (max_version
== 0)
472 max_version
= DTLS1_2_VERSION
;
473 #ifdef OPENSSL_NO_DTLS1_2
474 if (max_version
== DTLS1_2_VERSION
)
475 max_version
= DTLS1_VERSION
;
477 #ifdef OPENSSL_NO_DTLS1
478 if (min_version
== DTLS1_VERSION
)
479 min_version
= DTLS1_2_VERSION
;
481 /* Done massaging versions; do the check. */
483 #ifdef OPENSSL_NO_DTLS1
484 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
485 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
487 #ifdef OPENSSL_NO_DTLS1_2
488 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
489 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
494 /* Regular TLS version checks. */
495 if (min_version
== 0)
496 min_version
= SSL3_VERSION
;
497 if (max_version
== 0)
498 max_version
= TLS1_3_VERSION
;
499 #ifdef OPENSSL_NO_TLS1_3
500 if (max_version
== TLS1_3_VERSION
)
501 max_version
= TLS1_2_VERSION
;
503 #ifdef OPENSSL_NO_TLS1_2
504 if (max_version
== TLS1_2_VERSION
)
505 max_version
= TLS1_1_VERSION
;
507 #ifdef OPENSSL_NO_TLS1_1
508 if (max_version
== TLS1_1_VERSION
)
509 max_version
= TLS1_VERSION
;
511 #ifdef OPENSSL_NO_TLS1
512 if (max_version
== TLS1_VERSION
)
513 max_version
= SSL3_VERSION
;
515 #ifdef OPENSSL_NO_SSL3
516 if (min_version
== SSL3_VERSION
)
517 min_version
= TLS1_VERSION
;
519 #ifdef OPENSSL_NO_TLS1
520 if (min_version
== TLS1_VERSION
)
521 min_version
= TLS1_1_VERSION
;
523 #ifdef OPENSSL_NO_TLS1_1
524 if (min_version
== TLS1_1_VERSION
)
525 min_version
= TLS1_2_VERSION
;
527 #ifdef OPENSSL_NO_TLS1_2
528 if (min_version
== TLS1_2_VERSION
)
529 min_version
= TLS1_3_VERSION
;
531 /* Done massaging versions; do the check. */
533 #ifdef OPENSSL_NO_SSL3
534 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
536 #ifdef OPENSSL_NO_TLS1
537 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
539 #ifdef OPENSSL_NO_TLS1_1
540 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
542 #ifdef OPENSSL_NO_TLS1_2
543 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
545 #ifdef OPENSSL_NO_TLS1_3
546 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
554 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
556 * Define a VPROC function for HP NonStop build ssl library.
557 * This is used by platform version identification tools.
558 * Do not inline this procedure or make it static.
560 # define OPENSSL_VPROC_STRING_(x) x##_SSL
561 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
562 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
563 void OPENSSL_VPROC_FUNC(void) {}
567 static void clear_ciphers(SSL_CONNECTION
*s
)
569 /* clear the current cipher */
570 ssl_clear_cipher_ctx(s
);
571 ssl_clear_hash_ctx(&s
->read_hash
);
572 ssl_clear_hash_ctx(&s
->write_hash
);
575 int SSL_clear(SSL
*s
)
577 if (s
->method
== NULL
) {
578 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_METHOD_SPECIFIED
);
582 return s
->method
->ssl_reset(s
);
585 int ossl_ssl_connection_reset(SSL
*s
)
587 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
592 if (ssl_clear_bad_session(sc
)) {
593 SSL_SESSION_free(sc
->session
);
596 SSL_SESSION_free(sc
->psksession
);
597 sc
->psksession
= NULL
;
598 OPENSSL_free(sc
->psksession_id
);
599 sc
->psksession_id
= NULL
;
600 sc
->psksession_id_len
= 0;
601 sc
->hello_retry_request
= 0;
602 sc
->sent_tickets
= 0;
608 if (sc
->renegotiate
) {
609 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
613 ossl_statem_clear(sc
);
615 /* TODO(QUIC): Version handling not yet clear */
616 sc
->version
= s
->method
->version
;
617 sc
->client_version
= sc
->version
;
618 sc
->rwstate
= SSL_NOTHING
;
620 BUF_MEM_free(sc
->init_buf
);
623 sc
->first_packet
= 0;
625 sc
->key_update
= SSL_KEY_UPDATE_NONE
;
627 EVP_MD_CTX_free(sc
->pha_dgst
);
630 /* Reset DANE verification result state */
633 X509_free(sc
->dane
.mcert
);
634 sc
->dane
.mcert
= NULL
;
635 sc
->dane
.mtlsa
= NULL
;
637 /* Clear the verification result peername */
638 X509_VERIFY_PARAM_move_peername(sc
->param
, NULL
);
640 /* Clear any shared connection state */
641 OPENSSL_free(sc
->shared_sigalgs
);
642 sc
->shared_sigalgs
= NULL
;
643 sc
->shared_sigalgslen
= 0;
646 * Check to see if we were changed into a different method, if so, revert
649 if (s
->method
!= SSL_CONNECTION_GET_CTX(sc
)->method
) {
650 s
->method
->ssl_deinit(s
);
651 s
->method
= SSL_CONNECTION_GET_CTX(sc
)->method
;
652 if (!s
->method
->ssl_init(s
))
655 if (!s
->method
->ssl_clear(s
))
659 RECORD_LAYER_clear(&sc
->rlayer
);
660 BIO_free(sc
->rlayer
.rrlnext
);
661 sc
->rlayer
.rrlnext
= NULL
;
663 if (!ssl_set_new_record_layer(sc
,
664 SSL_CONNECTION_IS_DTLS(sc
) ? DTLS_ANY_VERSION
: TLS_ANY_VERSION
,
665 OSSL_RECORD_DIRECTION_READ
,
666 OSSL_RECORD_PROTECTION_LEVEL_NONE
,
667 NULL
, 0, NULL
, 0, NULL
, 0, NULL
, 0,
668 NID_undef
, NULL
, NULL
)) {
669 /* SSLfatal already called */
676 #ifndef OPENSSL_NO_DEPRECATED_3_0
677 /** Used to change an SSL_CTXs default SSL method type */
678 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
680 STACK_OF(SSL_CIPHER
) *sk
;
684 if (!SSL_CTX_set_ciphersuites(ctx
, OSSL_default_ciphersuites())) {
685 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
688 sk
= ssl_create_cipher_list(ctx
,
689 ctx
->tls13_ciphersuites
,
691 &(ctx
->cipher_list_by_id
),
692 OSSL_default_cipher_list(), ctx
->cert
);
693 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
694 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
701 SSL
*SSL_new(SSL_CTX
*ctx
)
704 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_CTX
);
707 if (ctx
->method
== NULL
) {
708 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
711 return ctx
->method
->ssl_new(ctx
);
714 int ossl_ssl_init(SSL
*ssl
, SSL_CTX
*ctx
, int type
)
719 ssl
->lock
= CRYPTO_THREAD_lock_new();
720 if (ssl
->lock
== NULL
)
726 ssl
->method
= ctx
->method
;
728 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, ssl
, &ssl
->ex_data
))
734 SSL
*ossl_ssl_connection_new(SSL_CTX
*ctx
)
739 s
= OPENSSL_zalloc(sizeof(*s
));
744 if (!ossl_ssl_init(ssl
, ctx
, SSL_TYPE_SSL_CONNECTION
)) {
750 #ifndef OPENSSL_NO_QUIC
751 /* set the parent (user visible) ssl to self */
755 RECORD_LAYER_init(&s
->rlayer
, s
);
757 s
->options
= ctx
->options
;
758 s
->dane
.flags
= ctx
->dane
.flags
;
759 s
->min_proto_version
= ctx
->min_proto_version
;
760 s
->max_proto_version
= ctx
->max_proto_version
;
762 s
->max_cert_list
= ctx
->max_cert_list
;
763 s
->max_early_data
= ctx
->max_early_data
;
764 s
->recv_max_early_data
= ctx
->recv_max_early_data
;
765 s
->num_tickets
= ctx
->num_tickets
;
766 s
->pha_enabled
= ctx
->pha_enabled
;
768 /* Shallow copy of the ciphersuites stack */
769 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
770 if (s
->tls13_ciphersuites
== NULL
)
774 * Earlier library versions used to copy the pointer to the CERT, not
775 * its contents; only when setting new parameters for the per-SSL
776 * copy, ssl_cert_new would be called (and the direct reference to
777 * the per-SSL_CTX settings would be lost, but those still were
778 * indirectly accessed for various purposes, and for that reason they
779 * used to be known as s->ctx->default_cert). Now we don't look at the
780 * SSL_CTX's CERT after having duplicated it once.
782 s
->cert
= ssl_cert_dup(ctx
->cert
);
786 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
787 s
->msg_callback
= ctx
->msg_callback
;
788 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
789 s
->verify_mode
= ctx
->verify_mode
;
790 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
791 s
->record_padding_cb
= ctx
->record_padding_cb
;
792 s
->record_padding_arg
= ctx
->record_padding_arg
;
793 s
->block_padding
= ctx
->block_padding
;
794 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
795 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
797 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
798 s
->verify_callback
= ctx
->default_verify_callback
;
799 s
->generate_session_id
= ctx
->generate_session_id
;
801 s
->param
= X509_VERIFY_PARAM_new();
802 if (s
->param
== NULL
)
804 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
805 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
807 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
808 s
->max_send_fragment
= ctx
->max_send_fragment
;
809 s
->split_send_fragment
= ctx
->split_send_fragment
;
810 s
->max_pipelines
= ctx
->max_pipelines
;
811 s
->rlayer
.default_read_buf_len
= ctx
->default_read_buf_len
;
814 s
->ext
.debug_arg
= NULL
;
815 s
->ext
.ticket_expected
= 0;
816 s
->ext
.status_type
= ctx
->ext
.status_type
;
817 s
->ext
.status_expected
= 0;
818 s
->ext
.ocsp
.ids
= NULL
;
819 s
->ext
.ocsp
.exts
= NULL
;
820 s
->ext
.ocsp
.resp
= NULL
;
821 s
->ext
.ocsp
.resp_len
= 0;
823 s
->session_ctx
= ctx
;
824 if (ctx
->ext
.ecpointformats
) {
825 s
->ext
.ecpointformats
=
826 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
827 ctx
->ext
.ecpointformats_len
);
828 if (!s
->ext
.ecpointformats
) {
829 s
->ext
.ecpointformats_len
= 0;
832 s
->ext
.ecpointformats_len
=
833 ctx
->ext
.ecpointformats_len
;
835 if (ctx
->ext
.supportedgroups
) {
836 s
->ext
.supportedgroups
=
837 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
838 ctx
->ext
.supportedgroups_len
839 * sizeof(*ctx
->ext
.supportedgroups
));
840 if (!s
->ext
.supportedgroups
) {
841 s
->ext
.supportedgroups_len
= 0;
844 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
847 #ifndef OPENSSL_NO_NEXTPROTONEG
851 if (ctx
->ext
.alpn
!= NULL
) {
852 s
->ext
.alpn
= OPENSSL_malloc(ctx
->ext
.alpn_len
);
853 if (s
->ext
.alpn
== NULL
) {
857 memcpy(s
->ext
.alpn
, ctx
->ext
.alpn
, ctx
->ext
.alpn_len
);
858 s
->ext
.alpn_len
= ctx
->ext
.alpn_len
;
861 s
->verified_chain
= NULL
;
862 s
->verify_result
= X509_V_OK
;
864 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
865 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
867 s
->key_update
= SSL_KEY_UPDATE_NONE
;
869 s
->allow_early_data_cb
= ctx
->allow_early_data_cb
;
870 s
->allow_early_data_cb_data
= ctx
->allow_early_data_cb_data
;
872 if (!ssl
->method
->ssl_init(ssl
))
875 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
880 #ifndef OPENSSL_NO_PSK
881 s
->psk_client_callback
= ctx
->psk_client_callback
;
882 s
->psk_server_callback
= ctx
->psk_server_callback
;
884 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
885 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
887 s
->async_cb
= ctx
->async_cb
;
888 s
->async_cb_arg
= ctx
->async_cb_arg
;
892 #ifndef OPENSSL_NO_CT
893 if (!SSL_set_ct_validation_callback(ssl
, ctx
->ct_validation_callback
,
894 ctx
->ct_validation_callback_arg
))
901 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
905 int SSL_is_dtls(const SSL
*s
)
907 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
912 return SSL_CONNECTION_IS_DTLS(sc
) ? 1 : 0;
915 int SSL_up_ref(SSL
*s
)
919 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
922 REF_PRINT_COUNT("SSL", s
);
923 REF_ASSERT_ISNT(i
< 2);
924 return ((i
> 1) ? 1 : 0);
927 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
928 unsigned int sid_ctx_len
)
930 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
931 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
934 ctx
->sid_ctx_length
= sid_ctx_len
;
935 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
940 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
941 unsigned int sid_ctx_len
)
943 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
948 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
949 ERR_raise(ERR_LIB_SSL
, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
952 sc
->sid_ctx_length
= sid_ctx_len
;
953 memcpy(sc
->sid_ctx
, sid_ctx
, sid_ctx_len
);
958 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
960 if (!CRYPTO_THREAD_write_lock(ctx
->lock
))
962 ctx
->generate_session_id
= cb
;
963 CRYPTO_THREAD_unlock(ctx
->lock
);
967 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
969 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
971 if (sc
== NULL
|| !CRYPTO_THREAD_write_lock(ssl
->lock
))
973 sc
->generate_session_id
= cb
;
974 CRYPTO_THREAD_unlock(ssl
->lock
);
978 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
982 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
983 * we can "construct" a session to give us the desired check - i.e. to
984 * find if there's a session in the hash table that would conflict with
985 * any new session built out of this id/id_len and the ssl_version in use
989 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
991 if (sc
== NULL
|| id_len
> sizeof(r
.session_id
))
994 r
.ssl_version
= sc
->version
;
995 r
.session_id_length
= id_len
;
996 memcpy(r
.session_id
, id
, id_len
);
998 if (!CRYPTO_THREAD_read_lock(sc
->session_ctx
->lock
))
1000 p
= lh_SSL_SESSION_retrieve(sc
->session_ctx
->sessions
, &r
);
1001 CRYPTO_THREAD_unlock(sc
->session_ctx
->lock
);
1005 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
1007 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
1010 int SSL_set_purpose(SSL
*s
, int purpose
)
1012 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1017 return X509_VERIFY_PARAM_set_purpose(sc
->param
, purpose
);
1020 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
1022 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
1025 int SSL_set_trust(SSL
*s
, int trust
)
1027 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1032 return X509_VERIFY_PARAM_set_trust(sc
->param
, trust
);
1035 int SSL_set1_host(SSL
*s
, const char *hostname
)
1037 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1042 /* If a hostname is provided and parses as an IP address,
1043 * treat it as such. */
1044 if (hostname
!= NULL
1045 && X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
) == 1)
1048 return X509_VERIFY_PARAM_set1_host(sc
->param
, hostname
, 0);
1051 int SSL_add1_host(SSL
*s
, const char *hostname
)
1053 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1058 /* If a hostname is provided and parses as an IP address,
1059 * treat it as such. */
1062 ASN1_OCTET_STRING
*ip
;
1065 ip
= a2i_IPADDRESS(hostname
);
1067 /* We didn't want it; only to check if it *is* an IP address */
1068 ASN1_OCTET_STRING_free(ip
);
1070 old_ip
= X509_VERIFY_PARAM_get1_ip_asc(sc
->param
);
1073 OPENSSL_free(old_ip
);
1074 /* There can be only one IP address */
1078 return X509_VERIFY_PARAM_set1_ip_asc(sc
->param
, hostname
);
1082 return X509_VERIFY_PARAM_add1_host(sc
->param
, hostname
, 0);
1085 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
1087 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1092 X509_VERIFY_PARAM_set_hostflags(sc
->param
, flags
);
1095 const char *SSL_get0_peername(SSL
*s
)
1097 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1102 return X509_VERIFY_PARAM_get0_peername(sc
->param
);
1105 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
1107 return dane_ctx_enable(&ctx
->dane
);
1110 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
1112 unsigned long orig
= ctx
->dane
.flags
;
1114 ctx
->dane
.flags
|= flags
;
1118 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
1120 unsigned long orig
= ctx
->dane
.flags
;
1122 ctx
->dane
.flags
&= ~flags
;
1126 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
1129 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1135 if (s
->ctx
->dane
.mdmax
== 0) {
1136 ERR_raise(ERR_LIB_SSL
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1139 if (dane
->trecs
!= NULL
) {
1140 ERR_raise(ERR_LIB_SSL
, SSL_R_DANE_ALREADY_ENABLED
);
1145 * Default SNI name. This rejects empty names, while set1_host below
1146 * accepts them and disables host name checks. To avoid side-effects with
1147 * invalid input, set the SNI name first.
1149 if (sc
->ext
.hostname
== NULL
) {
1150 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1151 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1156 /* Primary RFC6125 reference identifier */
1157 if (!X509_VERIFY_PARAM_set1_host(sc
->param
, basedomain
, 0)) {
1158 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1164 dane
->dctx
= &s
->ctx
->dane
;
1165 dane
->trecs
= sk_danetls_record_new_null();
1167 if (dane
->trecs
== NULL
) {
1168 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
1174 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1177 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1182 orig
= sc
->dane
.flags
;
1184 sc
->dane
.flags
|= flags
;
1188 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1191 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1196 orig
= sc
->dane
.flags
;
1198 sc
->dane
.flags
&= ~flags
;
1202 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1205 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1212 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1216 *mcert
= dane
->mcert
;
1218 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1223 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1224 uint8_t *mtype
, const unsigned char **data
, size_t *dlen
)
1227 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1234 if (!DANETLS_ENABLED(dane
) || sc
->verify_result
!= X509_V_OK
)
1238 *usage
= dane
->mtlsa
->usage
;
1240 *selector
= dane
->mtlsa
->selector
;
1242 *mtype
= dane
->mtlsa
->mtype
;
1244 *data
= dane
->mtlsa
->data
;
1246 *dlen
= dane
->mtlsa
->dlen
;
1251 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1253 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1261 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1262 uint8_t mtype
, const unsigned char *data
, size_t dlen
)
1264 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1269 return dane_tlsa_add(&sc
->dane
, usage
, selector
, mtype
, data
, dlen
);
1272 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1275 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1278 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1280 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1283 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1285 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1290 return X509_VERIFY_PARAM_set1(sc
->param
, vpm
);
1293 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1298 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1300 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
1308 void SSL_certs_clear(SSL
*s
)
1310 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1315 ssl_cert_clear_certs(sc
->cert
);
1318 void SSL_free(SSL
*s
)
1324 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1325 REF_PRINT_COUNT("SSL", s
);
1328 REF_ASSERT_ISNT(i
< 0);
1330 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1332 if (s
->method
!= NULL
)
1333 s
->method
->ssl_free(s
);
1335 SSL_CTX_free(s
->ctx
);
1336 CRYPTO_THREAD_lock_free(s
->lock
);
1341 void ossl_ssl_connection_free(SSL
*ssl
)
1345 s
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
1349 X509_VERIFY_PARAM_free(s
->param
);
1350 dane_final(&s
->dane
);
1352 RECORD_LAYER_clear(&s
->rlayer
);
1354 /* Ignore return value */
1355 ssl_free_wbio_buffer(s
);
1357 BIO_free_all(s
->wbio
);
1359 BIO_free_all(s
->rbio
);
1362 BUF_MEM_free(s
->init_buf
);
1364 /* add extra stuff */
1365 sk_SSL_CIPHER_free(s
->cipher_list
);
1366 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1367 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1368 sk_SSL_CIPHER_free(s
->peer_ciphers
);
1370 /* Make the next call work :-) */
1371 if (s
->session
!= NULL
) {
1372 ssl_clear_bad_session(s
);
1373 SSL_SESSION_free(s
->session
);
1375 SSL_SESSION_free(s
->psksession
);
1376 OPENSSL_free(s
->psksession_id
);
1380 ssl_cert_free(s
->cert
);
1381 OPENSSL_free(s
->shared_sigalgs
);
1382 /* Free up if allocated */
1384 OPENSSL_free(s
->ext
.hostname
);
1385 SSL_CTX_free(s
->session_ctx
);
1386 OPENSSL_free(s
->ext
.ecpointformats
);
1387 OPENSSL_free(s
->ext
.peer_ecpointformats
);
1388 OPENSSL_free(s
->ext
.supportedgroups
);
1389 OPENSSL_free(s
->ext
.peer_supportedgroups
);
1390 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1391 #ifndef OPENSSL_NO_OCSP
1392 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1394 #ifndef OPENSSL_NO_CT
1395 SCT_LIST_free(s
->scts
);
1396 OPENSSL_free(s
->ext
.scts
);
1398 OPENSSL_free(s
->ext
.ocsp
.resp
);
1399 OPENSSL_free(s
->ext
.alpn
);
1400 OPENSSL_free(s
->ext
.tls13_cookie
);
1401 if (s
->clienthello
!= NULL
)
1402 OPENSSL_free(s
->clienthello
->pre_proc_exts
);
1403 OPENSSL_free(s
->clienthello
);
1404 OPENSSL_free(s
->pha_context
);
1405 EVP_MD_CTX_free(s
->pha_dgst
);
1407 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1408 sk_X509_NAME_pop_free(s
->client_ca_names
, X509_NAME_free
);
1410 OSSL_STACK_OF_X509_free(s
->verified_chain
);
1412 if (ssl
->method
!= NULL
)
1413 ssl
->method
->ssl_deinit(ssl
);
1415 ASYNC_WAIT_CTX_free(s
->waitctx
);
1417 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1418 OPENSSL_free(s
->ext
.npn
);
1421 #ifndef OPENSSL_NO_SRTP
1422 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1426 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1428 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1433 BIO_free_all(sc
->rbio
);
1435 sc
->rlayer
.rrlmethod
->set1_bio(sc
->rlayer
.rrl
, sc
->rbio
);
1438 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1440 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1446 * If the output buffering BIO is still in place, remove it
1448 if (sc
->bbio
!= NULL
)
1449 sc
->wbio
= BIO_pop(sc
->wbio
);
1451 BIO_free_all(sc
->wbio
);
1454 /* Re-attach |bbio| to the new |wbio|. */
1455 if (sc
->bbio
!= NULL
)
1456 sc
->wbio
= BIO_push(sc
->bbio
, sc
->wbio
);
1459 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1462 * For historical reasons, this function has many different cases in
1463 * ownership handling.
1466 /* If nothing has changed, do nothing */
1467 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1471 * If the two arguments are equal then one fewer reference is granted by the
1472 * caller than we want to take
1474 if (rbio
!= NULL
&& rbio
== wbio
)
1478 * If only the wbio is changed only adopt one reference.
1480 if (rbio
== SSL_get_rbio(s
)) {
1481 SSL_set0_wbio(s
, wbio
);
1485 * There is an asymmetry here for historical reasons. If only the rbio is
1486 * changed AND the rbio and wbio were originally different, then we only
1487 * adopt one reference.
1489 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1490 SSL_set0_rbio(s
, rbio
);
1494 /* Otherwise, adopt both references. */
1495 SSL_set0_rbio(s
, rbio
);
1496 SSL_set0_wbio(s
, wbio
);
1499 BIO
*SSL_get_rbio(const SSL
*s
)
1501 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1509 BIO
*SSL_get_wbio(const SSL
*s
)
1511 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1516 if (sc
->bbio
!= NULL
) {
1518 * If |bbio| is active, the true caller-configured BIO is its
1521 return BIO_next(sc
->bbio
);
1526 int SSL_get_fd(const SSL
*s
)
1528 return SSL_get_rfd(s
);
1531 int SSL_get_rfd(const SSL
*s
)
1536 b
= SSL_get_rbio(s
);
1537 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1539 BIO_get_fd(r
, &ret
);
1543 int SSL_get_wfd(const SSL
*s
)
1548 b
= SSL_get_wbio(s
);
1549 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1551 BIO_get_fd(r
, &ret
);
1555 #ifndef OPENSSL_NO_SOCK
1556 int SSL_set_fd(SSL
*s
, int fd
)
1561 bio
= BIO_new(BIO_s_socket());
1564 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1567 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1568 SSL_set_bio(s
, bio
, bio
);
1569 #ifndef OPENSSL_NO_KTLS
1571 * The new socket is created successfully regardless of ktls_enable.
1572 * ktls_enable doesn't change any functionality of the socket, except
1573 * changing the setsockopt to enable the processing of ktls_start.
1574 * Thus, it is not a problem to call it for non-TLS sockets.
1577 #endif /* OPENSSL_NO_KTLS */
1583 int SSL_set_wfd(SSL
*s
, int fd
)
1585 BIO
*rbio
= SSL_get_rbio(s
);
1587 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1588 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1589 BIO
*bio
= BIO_new(BIO_s_socket());
1592 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1595 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1596 SSL_set0_wbio(s
, bio
);
1597 #ifndef OPENSSL_NO_KTLS
1599 * The new socket is created successfully regardless of ktls_enable.
1600 * ktls_enable doesn't change any functionality of the socket, except
1601 * changing the setsockopt to enable the processing of ktls_start.
1602 * Thus, it is not a problem to call it for non-TLS sockets.
1605 #endif /* OPENSSL_NO_KTLS */
1608 SSL_set0_wbio(s
, rbio
);
1613 int SSL_set_rfd(SSL
*s
, int fd
)
1615 BIO
*wbio
= SSL_get_wbio(s
);
1617 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1618 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1619 BIO
*bio
= BIO_new(BIO_s_socket());
1622 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
1625 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1626 SSL_set0_rbio(s
, bio
);
1629 SSL_set0_rbio(s
, wbio
);
1636 /* return length of latest Finished message we sent, copy to 'buf' */
1637 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1640 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1645 ret
= sc
->s3
.tmp
.finish_md_len
;
1648 memcpy(buf
, sc
->s3
.tmp
.finish_md
, count
);
1652 /* return length of latest Finished message we expected, copy to 'buf' */
1653 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1656 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1661 ret
= sc
->s3
.tmp
.peer_finish_md_len
;
1664 memcpy(buf
, sc
->s3
.tmp
.peer_finish_md
, count
);
1668 int SSL_get_verify_mode(const SSL
*s
)
1670 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1675 return sc
->verify_mode
;
1678 int SSL_get_verify_depth(const SSL
*s
)
1680 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1685 return X509_VERIFY_PARAM_get_depth(sc
->param
);
1688 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1689 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1694 return sc
->verify_callback
;
1697 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1699 return ctx
->verify_mode
;
1702 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1704 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1707 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1708 return ctx
->default_verify_callback
;
1711 void SSL_set_verify(SSL
*s
, int mode
,
1712 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1714 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1719 sc
->verify_mode
= mode
;
1720 if (callback
!= NULL
)
1721 sc
->verify_callback
= callback
;
1724 void SSL_set_verify_depth(SSL
*s
, int depth
)
1726 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1731 X509_VERIFY_PARAM_set_depth(sc
->param
, depth
);
1734 void SSL_set_read_ahead(SSL
*s
, int yes
)
1736 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1737 OSSL_PARAM options
[2], *opts
= options
;
1742 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, yes
);
1744 *opts
++ = OSSL_PARAM_construct_int(OSSL_LIBSSL_RECORD_LAYER_PARAM_READ_AHEAD
,
1745 &sc
->rlayer
.read_ahead
);
1746 *opts
= OSSL_PARAM_construct_end();
1748 /* Ignore return value */
1749 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
1752 int SSL_get_read_ahead(const SSL
*s
)
1754 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1759 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
1762 int SSL_pending(const SSL
*s
)
1764 size_t pending
= s
->method
->ssl_pending(s
);
1767 * SSL_pending cannot work properly if read-ahead is enabled
1768 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1769 * impossible to fix since SSL_pending cannot report errors that may be
1770 * observed while scanning the new data. (Note that SSL_pending() is
1771 * often used as a boolean value, so we'd better not return -1.)
1773 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1774 * we just return INT_MAX.
1776 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1779 int SSL_has_pending(const SSL
*s
)
1782 * Similar to SSL_pending() but returns a 1 to indicate that we have
1783 * processed or unprocessed data available or 0 otherwise (as opposed to the
1784 * number of bytes available). Unlike SSL_pending() this will take into
1785 * account read_ahead data. A 1 return simply indicates that we have data.
1786 * That data may not result in any application data, or we may fail to parse
1787 * the records for some reason.
1789 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1791 /* Check buffered app data if any first */
1792 if (SSL_CONNECTION_IS_DTLS(sc
)) {
1796 iter
= pqueue_iterator(sc
->rlayer
.d
->buffered_app_data
.q
);
1797 while ((item
= pqueue_next(&iter
)) != NULL
) {
1799 if (rdata
->length
> 0)
1804 if (RECORD_LAYER_processed_read_pending(&sc
->rlayer
))
1807 return RECORD_LAYER_read_pending(&sc
->rlayer
);
1810 X509
*SSL_get1_peer_certificate(const SSL
*s
)
1812 X509
*r
= SSL_get0_peer_certificate(s
);
1820 X509
*SSL_get0_peer_certificate(const SSL
*s
)
1822 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1827 if (sc
->session
== NULL
)
1830 return sc
->session
->peer
;
1833 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1836 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
1841 if (sc
->session
== NULL
)
1844 r
= sc
->session
->peer_chain
;
1847 * If we are a client, cert_chain includes the peer's own certificate; if
1848 * we are a server, it does not.
1855 * Now in theory, since the calling process own 't' it should be safe to
1856 * modify. We need to be able to read f without being hassled
1858 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1861 /* TODO(QUIC): Do we want to support this for QUIC connections? */
1862 SSL_CONNECTION
*tsc
= SSL_CONNECTION_FROM_SSL_ONLY(t
);
1863 const SSL_CONNECTION
*fsc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(f
);
1865 if (tsc
== NULL
|| fsc
== NULL
)
1868 /* Do we need to do SSL locking? */
1869 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1874 * what if we are setup for one protocol version but want to talk another
1876 if (t
->method
!= f
->method
) {
1877 t
->method
->ssl_deinit(t
);
1878 t
->method
= f
->method
;
1879 if (t
->method
->ssl_init(t
) == 0)
1883 CRYPTO_UP_REF(&fsc
->cert
->references
, &i
, fsc
->cert
->lock
);
1884 ssl_cert_free(tsc
->cert
);
1885 tsc
->cert
= fsc
->cert
;
1886 if (!SSL_set_session_id_context(t
, fsc
->sid_ctx
, (int)fsc
->sid_ctx_length
)) {
1893 /* Fix this so it checks all the valid key/cert options */
1894 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1896 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1897 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1900 if (ctx
->cert
->key
->privatekey
== NULL
) {
1901 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1904 return X509_check_private_key
1905 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1908 /* Fix this function so that it takes an optional type parameter */
1909 int SSL_check_private_key(const SSL
*ssl
)
1911 const SSL_CONNECTION
*sc
;
1913 if ((sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
)) == NULL
) {
1914 ERR_raise(ERR_LIB_SSL
, ERR_R_PASSED_NULL_PARAMETER
);
1917 if (sc
->cert
->key
->x509
== NULL
) {
1918 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1921 if (sc
->cert
->key
->privatekey
== NULL
) {
1922 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1925 return X509_check_private_key(sc
->cert
->key
->x509
,
1926 sc
->cert
->key
->privatekey
);
1929 int SSL_waiting_for_async(SSL
*s
)
1931 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1942 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1944 ASYNC_WAIT_CTX
*ctx
;
1945 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1950 if ((ctx
= sc
->waitctx
) == NULL
)
1952 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1955 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1956 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1958 ASYNC_WAIT_CTX
*ctx
;
1959 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1964 if ((ctx
= sc
->waitctx
) == NULL
)
1966 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1970 int SSL_CTX_set_async_callback(SSL_CTX
*ctx
, SSL_async_callback_fn callback
)
1972 ctx
->async_cb
= callback
;
1976 int SSL_CTX_set_async_callback_arg(SSL_CTX
*ctx
, void *arg
)
1978 ctx
->async_cb_arg
= arg
;
1982 int SSL_set_async_callback(SSL
*s
, SSL_async_callback_fn callback
)
1984 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
1989 sc
->async_cb
= callback
;
1993 int SSL_set_async_callback_arg(SSL
*s
, void *arg
)
1995 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2000 sc
->async_cb_arg
= arg
;
2004 int SSL_get_async_status(SSL
*s
, int *status
)
2006 ASYNC_WAIT_CTX
*ctx
;
2007 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2012 if ((ctx
= sc
->waitctx
) == NULL
)
2014 *status
= ASYNC_WAIT_CTX_get_status(ctx
);
2018 int SSL_accept(SSL
*s
)
2020 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2025 if (sc
->handshake_func
== NULL
) {
2026 /* Not properly initialized yet */
2027 SSL_set_accept_state(s
);
2030 return SSL_do_handshake(s
);
2033 int SSL_connect(SSL
*s
)
2035 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2040 if (sc
->handshake_func
== NULL
) {
2041 /* Not properly initialized yet */
2042 SSL_set_connect_state(s
);
2045 return SSL_do_handshake(s
);
2048 long SSL_get_default_timeout(const SSL
*s
)
2050 return (long int)ossl_time2seconds(s
->method
->get_timeout());
2053 static int ssl_async_wait_ctx_cb(void *arg
)
2055 SSL
*s
= (SSL
*)arg
;
2056 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2061 return sc
->async_cb(s
, sc
->async_cb_arg
);
2064 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
2065 int (*func
) (void *))
2068 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2073 if (sc
->waitctx
== NULL
) {
2074 sc
->waitctx
= ASYNC_WAIT_CTX_new();
2075 if (sc
->waitctx
== NULL
)
2077 if (sc
->async_cb
!= NULL
2078 && !ASYNC_WAIT_CTX_set_callback
2079 (sc
->waitctx
, ssl_async_wait_ctx_cb
, s
))
2083 sc
->rwstate
= SSL_NOTHING
;
2084 switch (ASYNC_start_job(&sc
->job
, sc
->waitctx
, &ret
, func
, args
,
2085 sizeof(struct ssl_async_args
))) {
2087 sc
->rwstate
= SSL_NOTHING
;
2088 ERR_raise(ERR_LIB_SSL
, SSL_R_FAILED_TO_INIT_ASYNC
);
2091 sc
->rwstate
= SSL_ASYNC_PAUSED
;
2094 sc
->rwstate
= SSL_ASYNC_NO_JOBS
;
2100 sc
->rwstate
= SSL_NOTHING
;
2101 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
2102 /* Shouldn't happen */
2107 static int ssl_io_intern(void *vargs
)
2109 struct ssl_async_args
*args
;
2115 args
= (struct ssl_async_args
*)vargs
;
2119 if ((sc
= SSL_CONNECTION_FROM_SSL(s
)) == NULL
)
2122 switch (args
->type
) {
2124 return args
->f
.func_read(s
, buf
, num
, &sc
->asyncrw
);
2126 return args
->f
.func_write(s
, buf
, num
, &sc
->asyncrw
);
2128 return args
->f
.func_other(s
);
2133 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2135 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2140 if (sc
->handshake_func
== NULL
) {
2141 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2145 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2146 sc
->rwstate
= SSL_NOTHING
;
2150 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2151 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
2152 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2156 * If we are a client and haven't received the ServerHello etc then we
2159 ossl_statem_check_finish_init(sc
, 0);
2161 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2162 struct ssl_async_args args
;
2168 args
.type
= READFUNC
;
2169 args
.f
.func_read
= s
->method
->ssl_read
;
2171 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2172 *readbytes
= sc
->asyncrw
;
2175 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
2179 int SSL_read(SSL
*s
, void *buf
, int num
)
2185 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2189 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
2192 * The cast is safe here because ret should be <= INT_MAX because num is
2196 ret
= (int)readbytes
;
2201 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2203 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
2210 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2213 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2215 /* TODO(QUIC): This will need special handling for QUIC */
2220 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2221 return SSL_READ_EARLY_DATA_ERROR
;
2224 switch (sc
->early_data_state
) {
2225 case SSL_EARLY_DATA_NONE
:
2226 if (!SSL_in_before(s
)) {
2227 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2228 return SSL_READ_EARLY_DATA_ERROR
;
2232 case SSL_EARLY_DATA_ACCEPT_RETRY
:
2233 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
2234 ret
= SSL_accept(s
);
2237 sc
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
2238 return SSL_READ_EARLY_DATA_ERROR
;
2242 case SSL_EARLY_DATA_READ_RETRY
:
2243 if (sc
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
2244 sc
->early_data_state
= SSL_EARLY_DATA_READING
;
2245 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
2247 * State machine will update early_data_state to
2248 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
2251 if (ret
> 0 || (ret
<= 0 && sc
->early_data_state
2252 != SSL_EARLY_DATA_FINISHED_READING
)) {
2253 sc
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
2254 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
2255 : SSL_READ_EARLY_DATA_ERROR
;
2258 sc
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
2261 return SSL_READ_EARLY_DATA_FINISH
;
2264 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2265 return SSL_READ_EARLY_DATA_ERROR
;
2269 int SSL_get_early_data_status(const SSL
*s
)
2271 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
2273 /* TODO(QUIC): This will need special handling for QUIC */
2277 return sc
->ext
.early_data
;
2280 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2282 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2287 if (sc
->handshake_func
== NULL
) {
2288 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2292 if (sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
2295 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2296 struct ssl_async_args args
;
2302 args
.type
= READFUNC
;
2303 args
.f
.func_read
= s
->method
->ssl_peek
;
2305 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2306 *readbytes
= sc
->asyncrw
;
2309 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
2313 int SSL_peek(SSL
*s
, void *buf
, int num
)
2319 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2323 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
2326 * The cast is safe here because ret should be <= INT_MAX because num is
2330 ret
= (int)readbytes
;
2336 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
2338 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
2345 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2347 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2352 if (sc
->handshake_func
== NULL
) {
2353 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2357 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2358 sc
->rwstate
= SSL_NOTHING
;
2359 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2363 if (sc
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
2364 || sc
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
2365 || sc
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
2366 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2369 /* If we are a client and haven't sent the Finished we better do that */
2370 ossl_statem_check_finish_init(sc
, 1);
2372 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2374 struct ssl_async_args args
;
2377 args
.buf
= (void *)buf
;
2379 args
.type
= WRITEFUNC
;
2380 args
.f
.func_write
= s
->method
->ssl_write
;
2382 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
2383 *written
= sc
->asyncrw
;
2386 return s
->method
->ssl_write(s
, buf
, num
, written
);
2390 ossl_ssize_t
SSL_sendfile(SSL
*s
, int fd
, off_t offset
, size_t size
, int flags
)
2393 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2398 if (sc
->handshake_func
== NULL
) {
2399 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2403 if (sc
->shutdown
& SSL_SENT_SHUTDOWN
) {
2404 sc
->rwstate
= SSL_NOTHING
;
2405 ERR_raise(ERR_LIB_SSL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
2409 if (!BIO_get_ktls_send(sc
->wbio
)) {
2410 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2414 /* If we have an alert to send, lets send it */
2415 if (sc
->s3
.alert_dispatch
) {
2416 ret
= (ossl_ssize_t
)s
->method
->ssl_dispatch_alert(s
);
2418 /* SSLfatal() already called if appropriate */
2421 /* if it went, fall through and send more stuff */
2424 sc
->rwstate
= SSL_WRITING
;
2425 if (BIO_flush(sc
->wbio
) <= 0) {
2426 if (!BIO_should_retry(sc
->wbio
)) {
2427 sc
->rwstate
= SSL_NOTHING
;
2430 set_sys_error(EAGAIN
);
2436 #ifdef OPENSSL_NO_KTLS
2437 ERR_raise_data(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
,
2438 "can't call ktls_sendfile(), ktls disabled");
2441 ret
= ktls_sendfile(SSL_get_wfd(s
), fd
, offset
, size
, flags
);
2443 #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY)
2444 if ((get_last_sys_error() == EAGAIN
) ||
2445 (get_last_sys_error() == EINTR
) ||
2446 (get_last_sys_error() == EBUSY
))
2447 BIO_set_retry_write(sc
->wbio
);
2450 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2453 sc
->rwstate
= SSL_NOTHING
;
2458 int SSL_write(SSL
*s
, const void *buf
, int num
)
2464 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
2468 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
2471 * The cast is safe here because ret should be <= INT_MAX because num is
2480 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2482 int ret
= ssl_write_internal(s
, buf
, num
, written
);
2489 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
2491 int ret
, early_data_state
;
2493 uint32_t partialwrite
;
2494 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2496 /* TODO(QUIC): This will need special handling for QUIC */
2500 switch (sc
->early_data_state
) {
2501 case SSL_EARLY_DATA_NONE
:
2503 || !SSL_in_before(s
)
2504 || ((sc
->session
== NULL
|| sc
->session
->ext
.max_early_data
== 0)
2505 && (sc
->psk_use_session_cb
== NULL
))) {
2506 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2511 case SSL_EARLY_DATA_CONNECT_RETRY
:
2512 sc
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
2513 ret
= SSL_connect(s
);
2516 sc
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2521 case SSL_EARLY_DATA_WRITE_RETRY
:
2522 sc
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2524 * We disable partial write for early data because we don't keep track
2525 * of how many bytes we've written between the SSL_write_ex() call and
2526 * the flush if the flush needs to be retried)
2528 partialwrite
= sc
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2529 sc
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2530 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2531 sc
->mode
|= partialwrite
;
2533 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2536 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2539 case SSL_EARLY_DATA_WRITE_FLUSH
:
2540 /* The buffering BIO is still in place so we need to flush it */
2541 if (statem_flush(sc
) != 1)
2544 sc
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2547 case SSL_EARLY_DATA_FINISHED_READING
:
2548 case SSL_EARLY_DATA_READ_RETRY
:
2549 early_data_state
= sc
->early_data_state
;
2550 /* We are a server writing to an unauthenticated client */
2551 sc
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2552 ret
= SSL_write_ex(s
, buf
, num
, written
);
2553 /* The buffering BIO is still in place */
2555 (void)BIO_flush(sc
->wbio
);
2556 sc
->early_data_state
= early_data_state
;
2560 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2565 int SSL_shutdown(SSL
*s
)
2568 * Note that this function behaves differently from what one might
2569 * expect. Return values are 0 for no success (yet), 1 for success; but
2570 * calling it once is usually not enough, even if blocking I/O is used
2571 * (see ssl3_shutdown).
2573 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2578 if (sc
->handshake_func
== NULL
) {
2579 ERR_raise(ERR_LIB_SSL
, SSL_R_UNINITIALIZED
);
2583 if (!SSL_in_init(s
)) {
2584 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2585 struct ssl_async_args args
;
2587 memset(&args
, 0, sizeof(args
));
2589 args
.type
= OTHERFUNC
;
2590 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2592 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2594 return s
->method
->ssl_shutdown(s
);
2597 ERR_raise(ERR_LIB_SSL
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2602 int SSL_key_update(SSL
*s
, int updatetype
)
2604 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2609 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
2610 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2614 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2615 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2616 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2620 if (!SSL_is_init_finished(s
)) {
2621 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
2625 if (RECORD_LAYER_write_pending(&sc
->rlayer
)) {
2626 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_WRITE_RETRY
);
2630 ossl_statem_set_in_init(sc
, 1);
2631 sc
->key_update
= updatetype
;
2635 int SSL_get_key_update_type(const SSL
*s
)
2637 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
2642 return sc
->key_update
;
2646 * Can we accept a renegotiation request? If yes, set the flag and
2647 * return 1 if yes. If not, raise error and return 0.
2649 static int can_renegotiate(const SSL_CONNECTION
*sc
)
2651 if (SSL_CONNECTION_IS_TLS13(sc
)) {
2652 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
2656 if ((sc
->options
& SSL_OP_NO_RENEGOTIATION
) != 0) {
2657 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_RENEGOTIATION
);
2664 int SSL_renegotiate(SSL
*s
)
2666 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2671 if (!can_renegotiate(sc
))
2674 sc
->renegotiate
= 1;
2675 sc
->new_session
= 1;
2676 return s
->method
->ssl_renegotiate(s
);
2679 int SSL_renegotiate_abbreviated(SSL
*s
)
2681 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2686 if (!can_renegotiate(sc
))
2689 sc
->renegotiate
= 1;
2690 sc
->new_session
= 0;
2691 return s
->method
->ssl_renegotiate(s
);
2694 int SSL_renegotiate_pending(const SSL
*s
)
2696 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
2702 * becomes true when negotiation is requested; false again once a
2703 * handshake has finished
2705 return (sc
->renegotiate
!= 0);
2708 int SSL_new_session_ticket(SSL
*s
)
2710 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2715 /* If we are in init because we're sending tickets, okay to send more. */
2716 if ((SSL_in_init(s
) && sc
->ext
.extra_tickets_expected
== 0)
2717 || SSL_IS_FIRST_HANDSHAKE(sc
) || !sc
->server
2718 || !SSL_CONNECTION_IS_TLS13(sc
))
2720 sc
->ext
.extra_tickets_expected
++;
2721 if (!RECORD_LAYER_write_pending(&sc
->rlayer
) && !SSL_in_init(s
))
2722 ossl_statem_set_in_init(sc
, 1);
2726 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2729 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2731 /* TODO(QUIC): Special handling for some ctrls will be needed */
2736 case SSL_CTRL_GET_READ_AHEAD
:
2737 return RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2738 case SSL_CTRL_SET_READ_AHEAD
:
2739 l
= RECORD_LAYER_get_read_ahead(&sc
->rlayer
);
2740 RECORD_LAYER_set_read_ahead(&sc
->rlayer
, larg
);
2743 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2744 sc
->msg_callback_arg
= parg
;
2749 OSSL_PARAM options
[2], *opts
= options
;
2753 *opts
++ = OSSL_PARAM_construct_uint32(OSSL_LIBSSL_RECORD_LAYER_PARAM_MODE
,
2755 *opts
= OSSL_PARAM_construct_end();
2757 /* Ignore return value */
2758 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
2762 case SSL_CTRL_CLEAR_MODE
:
2763 return (sc
->mode
&= ~larg
);
2764 case SSL_CTRL_GET_MAX_CERT_LIST
:
2765 return (long)sc
->max_cert_list
;
2766 case SSL_CTRL_SET_MAX_CERT_LIST
:
2769 l
= (long)sc
->max_cert_list
;
2770 sc
->max_cert_list
= (size_t)larg
;
2772 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2773 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2775 #ifndef OPENSSL_NO_KTLS
2776 if (sc
->wbio
!= NULL
&& BIO_get_ktls_send(sc
->wbio
))
2778 #endif /* OPENSSL_NO_KTLS */
2779 sc
->max_send_fragment
= larg
;
2780 if (sc
->max_send_fragment
< sc
->split_send_fragment
)
2781 sc
->split_send_fragment
= sc
->max_send_fragment
;
2783 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2784 if ((size_t)larg
> sc
->max_send_fragment
|| larg
== 0)
2786 sc
->split_send_fragment
= larg
;
2788 case SSL_CTRL_SET_MAX_PIPELINES
:
2789 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2791 sc
->max_pipelines
= larg
;
2792 if (sc
->rlayer
.rrlmethod
->set_max_pipelines
!= NULL
)
2793 sc
->rlayer
.rrlmethod
->set_max_pipelines(sc
->rlayer
.rrl
, (size_t)larg
);
2795 case SSL_CTRL_GET_RI_SUPPORT
:
2796 return sc
->s3
.send_connection_binding
;
2797 case SSL_CTRL_SET_RETRY_VERIFY
:
2798 sc
->rwstate
= SSL_RETRY_VERIFY
;
2800 case SSL_CTRL_CERT_FLAGS
:
2801 return (sc
->cert
->cert_flags
|= larg
);
2802 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2803 return (sc
->cert
->cert_flags
&= ~larg
);
2805 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2807 if (sc
->s3
.tmp
.ciphers_raw
== NULL
)
2809 *(unsigned char **)parg
= sc
->s3
.tmp
.ciphers_raw
;
2810 return (int)sc
->s3
.tmp
.ciphers_rawlen
;
2812 return TLS_CIPHER_LEN
;
2814 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2815 if (!sc
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(sc
))
2817 if (sc
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2821 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2822 return ssl_check_allowed_versions(larg
, sc
->max_proto_version
)
2823 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2824 &sc
->min_proto_version
);
2825 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2826 return sc
->min_proto_version
;
2827 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2828 return ssl_check_allowed_versions(sc
->min_proto_version
, larg
)
2829 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2830 &sc
->max_proto_version
);
2831 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2832 return sc
->max_proto_version
;
2834 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2838 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2840 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
2846 case SSL_CTRL_SET_MSG_CALLBACK
:
2847 sc
->msg_callback
= (void (*)
2848 (int write_p
, int version
, int content_type
,
2849 const void *buf
, size_t len
, SSL
*ssl
,
2854 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2858 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2860 return ctx
->sessions
;
2863 static int ssl_tsan_load(SSL_CTX
*ctx
, TSAN_QUALIFIER
int *stat
)
2867 if (ssl_tsan_lock(ctx
)) {
2868 res
= tsan_load(stat
);
2869 ssl_tsan_unlock(ctx
);
2874 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2877 /* For some cases with ctx == NULL perform syntax checks */
2880 case SSL_CTRL_SET_GROUPS_LIST
:
2881 return tls1_set_groups_list(ctx
, NULL
, NULL
, parg
);
2882 case SSL_CTRL_SET_SIGALGS_LIST
:
2883 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2884 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2891 case SSL_CTRL_GET_READ_AHEAD
:
2892 return ctx
->read_ahead
;
2893 case SSL_CTRL_SET_READ_AHEAD
:
2894 l
= ctx
->read_ahead
;
2895 ctx
->read_ahead
= larg
;
2898 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2899 ctx
->msg_callback_arg
= parg
;
2902 case SSL_CTRL_GET_MAX_CERT_LIST
:
2903 return (long)ctx
->max_cert_list
;
2904 case SSL_CTRL_SET_MAX_CERT_LIST
:
2907 l
= (long)ctx
->max_cert_list
;
2908 ctx
->max_cert_list
= (size_t)larg
;
2911 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2914 l
= (long)ctx
->session_cache_size
;
2915 ctx
->session_cache_size
= (size_t)larg
;
2917 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2918 return (long)ctx
->session_cache_size
;
2919 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2920 l
= ctx
->session_cache_mode
;
2921 ctx
->session_cache_mode
= larg
;
2923 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2924 return ctx
->session_cache_mode
;
2926 case SSL_CTRL_SESS_NUMBER
:
2927 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2928 case SSL_CTRL_SESS_CONNECT
:
2929 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect
);
2930 case SSL_CTRL_SESS_CONNECT_GOOD
:
2931 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_good
);
2932 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2933 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_connect_renegotiate
);
2934 case SSL_CTRL_SESS_ACCEPT
:
2935 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept
);
2936 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2937 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_good
);
2938 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2939 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_accept_renegotiate
);
2940 case SSL_CTRL_SESS_HIT
:
2941 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_hit
);
2942 case SSL_CTRL_SESS_CB_HIT
:
2943 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cb_hit
);
2944 case SSL_CTRL_SESS_MISSES
:
2945 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_miss
);
2946 case SSL_CTRL_SESS_TIMEOUTS
:
2947 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_timeout
);
2948 case SSL_CTRL_SESS_CACHE_FULL
:
2949 return ssl_tsan_load(ctx
, &ctx
->stats
.sess_cache_full
);
2951 return (ctx
->mode
|= larg
);
2952 case SSL_CTRL_CLEAR_MODE
:
2953 return (ctx
->mode
&= ~larg
);
2954 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2955 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2957 ctx
->max_send_fragment
= larg
;
2958 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2959 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2961 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2962 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2964 ctx
->split_send_fragment
= larg
;
2966 case SSL_CTRL_SET_MAX_PIPELINES
:
2967 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2969 ctx
->max_pipelines
= larg
;
2971 case SSL_CTRL_CERT_FLAGS
:
2972 return (ctx
->cert
->cert_flags
|= larg
);
2973 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2974 return (ctx
->cert
->cert_flags
&= ~larg
);
2975 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2976 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2977 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2978 &ctx
->min_proto_version
);
2979 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2980 return ctx
->min_proto_version
;
2981 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2982 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2983 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2984 &ctx
->max_proto_version
);
2985 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2986 return ctx
->max_proto_version
;
2988 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2992 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2995 case SSL_CTRL_SET_MSG_CALLBACK
:
2996 ctx
->msg_callback
= (void (*)
2997 (int write_p
, int version
, int content_type
,
2998 const void *buf
, size_t len
, SSL
*ssl
,
3003 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
3007 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
3016 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
3017 const SSL_CIPHER
*const *bp
)
3019 if ((*ap
)->id
> (*bp
)->id
)
3021 if ((*ap
)->id
< (*bp
)->id
)
3027 * return a STACK of the ciphers available for the SSL and in order of
3030 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
3032 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3035 if (sc
->cipher_list
!= NULL
) {
3036 return sc
->cipher_list
;
3037 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
3038 return s
->ctx
->cipher_list
;
3044 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
3046 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3048 if (sc
== NULL
|| !sc
->server
)
3050 return sc
->peer_ciphers
;
3053 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
3055 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
3057 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3062 ciphers
= SSL_get_ciphers(s
);
3065 if (!ssl_set_client_disabled(sc
))
3067 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
3068 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
3069 if (!ssl_cipher_disabled(sc
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
3071 sk
= sk_SSL_CIPHER_new_null();
3074 if (!sk_SSL_CIPHER_push(sk
, c
)) {
3075 sk_SSL_CIPHER_free(sk
);
3083 /** return a STACK of the ciphers available for the SSL and in order of
3085 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL_CONNECTION
*s
)
3088 if (s
->cipher_list_by_id
!= NULL
)
3089 return s
->cipher_list_by_id
;
3090 else if (s
->ssl
.ctx
!= NULL
3091 && s
->ssl
.ctx
->cipher_list_by_id
!= NULL
)
3092 return s
->ssl
.ctx
->cipher_list_by_id
;
3097 /** The old interface to get the same thing as SSL_get_ciphers() */
3098 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
3100 const SSL_CIPHER
*c
;
3101 STACK_OF(SSL_CIPHER
) *sk
;
3105 sk
= SSL_get_ciphers(s
);
3106 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
3108 c
= sk_SSL_CIPHER_value(sk
, n
);
3114 /** return a STACK of the ciphers available for the SSL_CTX and in order of
3116 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
3119 return ctx
->cipher_list
;
3124 * Distinguish between ciphers controlled by set_ciphersuite() and
3125 * set_cipher_list() when counting.
3127 static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER
) *sk
)
3130 const SSL_CIPHER
*c
;
3134 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); ++i
) {
3135 c
= sk_SSL_CIPHER_value(sk
, i
);
3136 if (c
->min_tls
>= TLS1_3_VERSION
)
3143 /** specify the ciphers to be used by default by the SSL_CTX */
3144 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
3146 STACK_OF(SSL_CIPHER
) *sk
;
3148 sk
= ssl_create_cipher_list(ctx
, ctx
->tls13_ciphersuites
,
3149 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
3152 * ssl_create_cipher_list may return an empty stack if it was unable to
3153 * find a cipher matching the given rule string (for example if the rule
3154 * string specifies a cipher which has been disabled). This is not an
3155 * error as far as ssl_create_cipher_list is concerned, and hence
3156 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
3160 else if (cipher_list_tls12_num(sk
) == 0) {
3161 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3167 /** specify the ciphers to be used by the SSL */
3168 int SSL_set_cipher_list(SSL
*s
, const char *str
)
3170 STACK_OF(SSL_CIPHER
) *sk
;
3171 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3176 sk
= ssl_create_cipher_list(s
->ctx
, sc
->tls13_ciphersuites
,
3177 &sc
->cipher_list
, &sc
->cipher_list_by_id
, str
,
3179 /* see comment in SSL_CTX_set_cipher_list */
3182 else if (cipher_list_tls12_num(sk
) == 0) {
3183 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHER_MATCH
);
3189 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
3192 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
3193 const SSL_CIPHER
*c
;
3195 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3201 || sc
->peer_ciphers
== NULL
3206 clntsk
= sc
->peer_ciphers
;
3207 srvrsk
= SSL_get_ciphers(s
);
3208 if (clntsk
== NULL
|| srvrsk
== NULL
)
3211 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
3214 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
3217 c
= sk_SSL_CIPHER_value(clntsk
, i
);
3218 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
3221 n
= strlen(c
->name
);
3238 * Return the requested servername (SNI) value. Note that the behaviour varies
3240 * - whether this is called by the client or the server,
3241 * - if we are before or during/after the handshake,
3242 * - if a resumption or normal handshake is being attempted/has occurred
3243 * - whether we have negotiated TLSv1.2 (or below) or TLSv1.3
3245 * Note that only the host_name type is defined (RFC 3546).
3247 const char *SSL_get_servername(const SSL
*s
, const int type
)
3249 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3256 * If we don't know if we are the client or the server yet then we assume
3259 server
= sc
->handshake_func
== NULL
? 0 : sc
->server
;
3261 if (type
!= TLSEXT_NAMETYPE_host_name
)
3267 * In TLSv1.3 on the server SNI is not associated with the session
3268 * but in TLSv1.2 or below it is.
3270 * Before the handshake:
3273 * During/after the handshake (TLSv1.2 or below resumption occurred):
3274 * - If a servername was accepted by the server in the original
3275 * handshake then it will return that servername, or NULL otherwise.
3277 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3278 * - The function will return the servername requested by the client in
3279 * this handshake or NULL if none was requested.
3281 if (sc
->hit
&& !SSL_CONNECTION_IS_TLS13(sc
))
3282 return sc
->session
->ext
.hostname
;
3287 * Before the handshake:
3288 * - If a servername has been set via a call to
3289 * SSL_set_tlsext_host_name() then it will return that servername
3290 * - If one has not been set, but a TLSv1.2 resumption is being
3291 * attempted and the session from the original handshake had a
3292 * servername accepted by the server then it will return that
3294 * - Otherwise it returns NULL
3296 * During/after the handshake (TLSv1.2 or below resumption occurred):
3297 * - If the session from the original handshake had a servername accepted
3298 * by the server then it will return that servername.
3299 * - Otherwise it returns the servername set via
3300 * SSL_set_tlsext_host_name() (or NULL if it was not called).
3302 * During/after the handshake (TLSv1.2 or below resumption did not occur):
3303 * - It will return the servername set via SSL_set_tlsext_host_name()
3304 * (or NULL if it was not called).
3306 if (SSL_in_before(s
)) {
3307 if (sc
->ext
.hostname
== NULL
3308 && sc
->session
!= NULL
3309 && sc
->session
->ssl_version
!= TLS1_3_VERSION
)
3310 return sc
->session
->ext
.hostname
;
3312 if (!SSL_CONNECTION_IS_TLS13(sc
) && sc
->hit
3313 && sc
->session
->ext
.hostname
!= NULL
)
3314 return sc
->session
->ext
.hostname
;
3318 return sc
->ext
.hostname
;
3321 int SSL_get_servername_type(const SSL
*s
)
3323 if (SSL_get_servername(s
, TLSEXT_NAMETYPE_host_name
) != NULL
)
3324 return TLSEXT_NAMETYPE_host_name
;
3329 * SSL_select_next_proto implements the standard protocol selection. It is
3330 * expected that this function is called from the callback set by
3331 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
3332 * vector of 8-bit, length prefixed byte strings. The length byte itself is
3333 * not included in the length. A byte string of length 0 is invalid. No byte
3334 * string may be truncated. The current, but experimental algorithm for
3335 * selecting the protocol is: 1) If the server doesn't support NPN then this
3336 * is indicated to the callback. In this case, the client application has to
3337 * abort the connection or have a default application level protocol. 2) If
3338 * the server supports NPN, but advertises an empty list then the client
3339 * selects the first protocol in its list, but indicates via the API that this
3340 * fallback case was enacted. 3) Otherwise, the client finds the first
3341 * protocol in the server's list that it supports and selects this protocol.
3342 * This is because it's assumed that the server has better information about
3343 * which protocol a client should use. 4) If the client doesn't support any
3344 * of the server's advertised protocols, then this is treated the same as
3345 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
3346 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
3348 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
3349 const unsigned char *server
,
3350 unsigned int server_len
,
3351 const unsigned char *client
, unsigned int client_len
)
3354 const unsigned char *result
;
3355 int status
= OPENSSL_NPN_UNSUPPORTED
;
3358 * For each protocol in server preference order, see if we support it.
3360 for (i
= 0; i
< server_len
;) {
3361 for (j
= 0; j
< client_len
;) {
3362 if (server
[i
] == client
[j
] &&
3363 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
3364 /* We found a match */
3365 result
= &server
[i
];
3366 status
= OPENSSL_NPN_NEGOTIATED
;
3376 /* There's no overlap between our protocols and the server's list. */
3378 status
= OPENSSL_NPN_NO_OVERLAP
;
3381 *out
= (unsigned char *)result
+ 1;
3382 *outlen
= result
[0];
3386 #ifndef OPENSSL_NO_NEXTPROTONEG
3388 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
3389 * client's requested protocol for this connection and returns 0. If the
3390 * client didn't request any protocol, then *data is set to NULL. Note that
3391 * the client can request any protocol it chooses. The value returned from
3392 * this function need not be a member of the list of supported protocols
3393 * provided by the callback.
3395 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
3398 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
3401 /* We have no other way to indicate error */
3407 *data
= sc
->ext
.npn
;
3408 if (*data
== NULL
) {
3411 *len
= (unsigned int)sc
->ext
.npn_len
;
3416 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
3417 * a TLS server needs a list of supported protocols for Next Protocol
3418 * Negotiation. The returned list must be in wire format. The list is
3419 * returned by setting |out| to point to it and |outlen| to its length. This
3420 * memory will not be modified, but one should assume that the SSL* keeps a
3421 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
3422 * wishes to advertise. Otherwise, no such extension will be included in the
3425 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
3426 SSL_CTX_npn_advertised_cb_func cb
,
3429 ctx
->ext
.npn_advertised_cb
= cb
;
3430 ctx
->ext
.npn_advertised_cb_arg
= arg
;
3434 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
3435 * client needs to select a protocol from the server's provided list. |out|
3436 * must be set to point to the selected protocol (which may be within |in|).
3437 * The length of the protocol name must be written into |outlen|. The
3438 * server's advertised protocols are provided in |in| and |inlen|. The
3439 * callback can assume that |in| is syntactically valid. The client must
3440 * select a protocol. It is fatal to the connection if this callback returns
3441 * a value other than SSL_TLSEXT_ERR_OK.
3443 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
3444 SSL_CTX_npn_select_cb_func cb
,
3447 ctx
->ext
.npn_select_cb
= cb
;
3448 ctx
->ext
.npn_select_cb_arg
= arg
;
3452 static int alpn_value_ok(const unsigned char *protos
, unsigned int protos_len
)
3456 if (protos_len
< 2 || protos
== NULL
)
3459 for (idx
= 0; idx
< protos_len
; idx
+= protos
[idx
] + 1) {
3460 if (protos
[idx
] == 0)
3463 return idx
== protos_len
;
3466 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
3467 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3468 * length-prefixed strings). Returns 0 on success.
3470 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
3471 unsigned int protos_len
)
3473 unsigned char *alpn
;
3475 if (protos_len
== 0 || protos
== NULL
) {
3476 OPENSSL_free(ctx
->ext
.alpn
);
3477 ctx
->ext
.alpn
= NULL
;
3478 ctx
->ext
.alpn_len
= 0;
3481 /* Not valid per RFC */
3482 if (!alpn_value_ok(protos
, protos_len
))
3485 alpn
= OPENSSL_memdup(protos
, protos_len
);
3487 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3490 OPENSSL_free(ctx
->ext
.alpn
);
3491 ctx
->ext
.alpn
= alpn
;
3492 ctx
->ext
.alpn_len
= protos_len
;
3498 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
3499 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
3500 * length-prefixed strings). Returns 0 on success.
3502 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
3503 unsigned int protos_len
)
3505 unsigned char *alpn
;
3506 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
3511 if (protos_len
== 0 || protos
== NULL
) {
3512 OPENSSL_free(sc
->ext
.alpn
);
3513 sc
->ext
.alpn
= NULL
;
3514 sc
->ext
.alpn_len
= 0;
3517 /* Not valid per RFC */
3518 if (!alpn_value_ok(protos
, protos_len
))
3521 alpn
= OPENSSL_memdup(protos
, protos_len
);
3523 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3526 OPENSSL_free(sc
->ext
.alpn
);
3527 sc
->ext
.alpn
= alpn
;
3528 sc
->ext
.alpn_len
= protos_len
;
3534 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
3535 * called during ClientHello processing in order to select an ALPN protocol
3536 * from the client's list of offered protocols.
3538 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
3539 SSL_CTX_alpn_select_cb_func cb
,
3542 ctx
->ext
.alpn_select_cb
= cb
;
3543 ctx
->ext
.alpn_select_cb_arg
= arg
;
3547 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
3548 * On return it sets |*data| to point to |*len| bytes of protocol name
3549 * (not including the leading length-prefix byte). If the server didn't
3550 * respond with a negotiated protocol then |*len| will be zero.
3552 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
3555 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
3558 /* We have no other way to indicate error */
3564 *data
= sc
->s3
.alpn_selected
;
3568 *len
= (unsigned int)sc
->s3
.alpn_selected_len
;
3571 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
3572 const char *label
, size_t llen
,
3573 const unsigned char *context
, size_t contextlen
,
3576 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3581 if (sc
->session
== NULL
3582 || (sc
->version
< TLS1_VERSION
&& sc
->version
!= DTLS1_BAD_VER
))
3585 return s
->method
->ssl3_enc
->export_keying_material(sc
, out
, olen
, label
,
3587 contextlen
, use_context
);
3590 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
3591 const char *label
, size_t llen
,
3592 const unsigned char *context
,
3595 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3600 if (sc
->version
!= TLS1_3_VERSION
)
3603 return tls13_export_keying_material_early(sc
, out
, olen
, label
, llen
,
3604 context
, contextlen
);
3607 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
3609 const unsigned char *session_id
= a
->session_id
;
3611 unsigned char tmp_storage
[4];
3613 if (a
->session_id_length
< sizeof(tmp_storage
)) {
3614 memset(tmp_storage
, 0, sizeof(tmp_storage
));
3615 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
3616 session_id
= tmp_storage
;
3620 ((unsigned long)session_id
[0]) |
3621 ((unsigned long)session_id
[1] << 8L) |
3622 ((unsigned long)session_id
[2] << 16L) |
3623 ((unsigned long)session_id
[3] << 24L);
3628 * NB: If this function (or indeed the hash function which uses a sort of
3629 * coarser function than this one) is changed, ensure
3630 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
3631 * being able to construct an SSL_SESSION that will collide with any existing
3632 * session with a matching session ID.
3634 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
3636 if (a
->ssl_version
!= b
->ssl_version
)
3638 if (a
->session_id_length
!= b
->session_id_length
)
3640 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
3644 * These wrapper functions should remain rather than redeclaring
3645 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
3646 * variable. The reason is that the functions aren't static, they're exposed
3650 SSL_CTX
*SSL_CTX_new_ex(OSSL_LIB_CTX
*libctx
, const char *propq
,
3651 const SSL_METHOD
*meth
)
3653 SSL_CTX
*ret
= NULL
;
3656 ERR_raise(ERR_LIB_SSL
, SSL_R_NULL_SSL_METHOD_PASSED
);
3660 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
3663 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
3664 ERR_raise(ERR_LIB_SSL
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
3667 ret
= OPENSSL_zalloc(sizeof(*ret
));
3671 /* Init the reference counting before any call to SSL_CTX_free */
3672 ret
->references
= 1;
3673 ret
->lock
= CRYPTO_THREAD_lock_new();
3674 if (ret
->lock
== NULL
) {
3675 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3680 #ifdef TSAN_REQUIRES_LOCKING
3681 ret
->tsan_lock
= CRYPTO_THREAD_lock_new();
3682 if (ret
->tsan_lock
== NULL
) {
3683 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3688 ret
->libctx
= libctx
;
3689 if (propq
!= NULL
) {
3690 ret
->propq
= OPENSSL_strdup(propq
);
3691 if (ret
->propq
== NULL
)
3696 ret
->min_proto_version
= 0;
3697 ret
->max_proto_version
= 0;
3698 ret
->mode
= SSL_MODE_AUTO_RETRY
;
3699 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
3700 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
3701 /* We take the system default. */
3702 ret
->session_timeout
= meth
->get_timeout();
3703 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
3704 ret
->verify_mode
= SSL_VERIFY_NONE
;
3705 if ((ret
->cert
= ssl_cert_new()) == NULL
)
3708 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
3709 if (ret
->sessions
== NULL
)
3711 ret
->cert_store
= X509_STORE_new();
3712 if (ret
->cert_store
== NULL
)
3714 #ifndef OPENSSL_NO_CT
3715 ret
->ctlog_store
= CTLOG_STORE_new_ex(libctx
, propq
);
3716 if (ret
->ctlog_store
== NULL
)
3720 /* initialize cipher/digest methods table */
3721 if (!ssl_load_ciphers(ret
))
3723 /* initialise sig algs */
3724 if (!ssl_setup_sig_algs(ret
))
3728 if (!ssl_load_groups(ret
))
3731 if (!SSL_CTX_set_ciphersuites(ret
, OSSL_default_ciphersuites()))
3734 if (!ssl_create_cipher_list(ret
,
3735 ret
->tls13_ciphersuites
,
3736 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
3737 OSSL_default_cipher_list(), ret
->cert
)
3738 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
3739 ERR_raise(ERR_LIB_SSL
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
3743 ret
->param
= X509_VERIFY_PARAM_new();
3744 if (ret
->param
== NULL
)
3748 * If these aren't available from the provider we'll get NULL returns.
3749 * That's fine but will cause errors later if SSLv3 is negotiated
3751 ret
->md5
= ssl_evp_md_fetch(libctx
, NID_md5
, propq
);
3752 ret
->sha1
= ssl_evp_md_fetch(libctx
, NID_sha1
, propq
);
3754 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
3757 if ((ret
->client_ca_names
= sk_X509_NAME_new_null()) == NULL
)
3760 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
3763 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
3766 /* No compression for DTLS */
3767 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
3768 ret
->comp_methods
= SSL_COMP_get_compression_methods();
3770 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3771 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
3773 /* Setup RFC5077 ticket keys */
3774 if ((RAND_bytes_ex(libctx
, ret
->ext
.tick_key_name
,
3775 sizeof(ret
->ext
.tick_key_name
), 0) <= 0)
3776 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_hmac_key
,
3777 sizeof(ret
->ext
.secure
->tick_hmac_key
), 0) <= 0)
3778 || (RAND_priv_bytes_ex(libctx
, ret
->ext
.secure
->tick_aes_key
,
3779 sizeof(ret
->ext
.secure
->tick_aes_key
), 0) <= 0))
3780 ret
->options
|= SSL_OP_NO_TICKET
;
3782 if (RAND_priv_bytes_ex(libctx
, ret
->ext
.cookie_hmac_key
,
3783 sizeof(ret
->ext
.cookie_hmac_key
), 0) <= 0)
3786 #ifndef OPENSSL_NO_SRP
3787 if (!ssl_ctx_srp_ctx_init_intern(ret
))
3790 #ifndef OPENSSL_NO_ENGINE
3791 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
3792 # define eng_strx(x) #x
3793 # define eng_str(x) eng_strx(x)
3794 /* Use specific client engine automatically... ignore errors */
3797 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3800 ENGINE_load_builtin_engines();
3801 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
3803 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
3809 * Disable compression by default to prevent CRIME. Applications can
3810 * re-enable compression by configuring
3811 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
3812 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
3813 * middlebox compatibility by default. This may be disabled by default in
3814 * a later OpenSSL version.
3816 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3818 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3821 * We cannot usefully set a default max_early_data here (which gets
3822 * propagated in SSL_new(), for the following reason: setting the
3823 * SSL field causes tls_construct_stoc_early_data() to tell the
3824 * client that early data will be accepted when constructing a TLS 1.3
3825 * session ticket, and the client will accordingly send us early data
3826 * when using that ticket (if the client has early data to send).
3827 * However, in order for the early data to actually be consumed by
3828 * the application, the application must also have calls to
3829 * SSL_read_early_data(); otherwise we'll just skip past the early data
3830 * and ignore it. So, since the application must add calls to
3831 * SSL_read_early_data(), we also require them to add
3832 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3833 * eliminating the bandwidth-wasting early data in the case described
3836 ret
->max_early_data
= 0;
3839 * Default recv_max_early_data is a fully loaded single record. Could be
3840 * split across multiple records in practice. We set this differently to
3841 * max_early_data so that, in the default case, we do not advertise any
3842 * support for early_data, but if a client were to send us some (e.g.
3843 * because of an old, stale ticket) then we will tolerate it and skip over
3846 ret
->recv_max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3848 /* By default we send two session tickets automatically in TLSv1.3 */
3849 ret
->num_tickets
= 2;
3851 ssl_ctx_system_config(ret
);
3855 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
3861 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
3863 return SSL_CTX_new_ex(NULL
, NULL
, meth
);
3866 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3870 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3873 REF_PRINT_COUNT("SSL_CTX", ctx
);
3874 REF_ASSERT_ISNT(i
< 2);
3875 return ((i
> 1) ? 1 : 0);
3878 void SSL_CTX_free(SSL_CTX
*a
)
3886 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3887 REF_PRINT_COUNT("SSL_CTX", a
);
3890 REF_ASSERT_ISNT(i
< 0);
3892 X509_VERIFY_PARAM_free(a
->param
);
3893 dane_ctx_final(&a
->dane
);
3896 * Free internal session cache. However: the remove_cb() may reference
3897 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3898 * after the sessions were flushed.
3899 * As the ex_data handling routines might also touch the session cache,
3900 * the most secure solution seems to be: empty (flush) the cache, then
3901 * free ex_data, then finally free the cache.
3902 * (See ticket [openssl.org #212].)
3904 if (a
->sessions
!= NULL
)
3905 SSL_CTX_flush_sessions(a
, 0);
3907 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3908 lh_SSL_SESSION_free(a
->sessions
);
3909 X509_STORE_free(a
->cert_store
);
3910 #ifndef OPENSSL_NO_CT
3911 CTLOG_STORE_free(a
->ctlog_store
);
3913 sk_SSL_CIPHER_free(a
->cipher_list
);
3914 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3915 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3916 ssl_cert_free(a
->cert
);
3917 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3918 sk_X509_NAME_pop_free(a
->client_ca_names
, X509_NAME_free
);
3919 OSSL_STACK_OF_X509_free(a
->extra_certs
);
3920 a
->comp_methods
= NULL
;
3921 #ifndef OPENSSL_NO_SRTP
3922 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3924 #ifndef OPENSSL_NO_SRP
3925 ssl_ctx_srp_ctx_free_intern(a
);
3927 #ifndef OPENSSL_NO_ENGINE
3928 tls_engine_finish(a
->client_cert_engine
);
3931 OPENSSL_free(a
->ext
.ecpointformats
);
3932 OPENSSL_free(a
->ext
.supportedgroups
);
3933 OPENSSL_free(a
->ext
.supported_groups_default
);
3934 OPENSSL_free(a
->ext
.alpn
);
3935 OPENSSL_secure_free(a
->ext
.secure
);
3937 ssl_evp_md_free(a
->md5
);
3938 ssl_evp_md_free(a
->sha1
);
3940 for (j
= 0; j
< SSL_ENC_NUM_IDX
; j
++)
3941 ssl_evp_cipher_free(a
->ssl_cipher_methods
[j
]);
3942 for (j
= 0; j
< SSL_MD_NUM_IDX
; j
++)
3943 ssl_evp_md_free(a
->ssl_digest_methods
[j
]);
3944 for (j
= 0; j
< a
->group_list_len
; j
++) {
3945 OPENSSL_free(a
->group_list
[j
].tlsname
);
3946 OPENSSL_free(a
->group_list
[j
].realname
);
3947 OPENSSL_free(a
->group_list
[j
].algorithm
);
3949 OPENSSL_free(a
->group_list
);
3951 OPENSSL_free(a
->sigalg_lookup_cache
);
3953 CRYPTO_THREAD_lock_free(a
->lock
);
3954 #ifdef TSAN_REQUIRES_LOCKING
3955 CRYPTO_THREAD_lock_free(a
->tsan_lock
);
3958 OPENSSL_free(a
->propq
);
3963 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3965 ctx
->default_passwd_callback
= cb
;
3968 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3970 ctx
->default_passwd_callback_userdata
= u
;
3973 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3975 return ctx
->default_passwd_callback
;
3978 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3980 return ctx
->default_passwd_callback_userdata
;
3983 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3985 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
3990 sc
->default_passwd_callback
= cb
;
3993 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3995 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4000 sc
->default_passwd_callback_userdata
= u
;
4003 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
4005 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4010 return sc
->default_passwd_callback
;
4013 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
4015 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4020 return sc
->default_passwd_callback_userdata
;
4023 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
4024 int (*cb
) (X509_STORE_CTX
*, void *),
4027 ctx
->app_verify_callback
= cb
;
4028 ctx
->app_verify_arg
= arg
;
4031 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
4032 int (*cb
) (int, X509_STORE_CTX
*))
4034 ctx
->verify_mode
= mode
;
4035 ctx
->default_verify_callback
= cb
;
4038 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
4040 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
4043 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4045 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
4048 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
4050 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4055 ssl_cert_set_cert_cb(sc
->cert
, cb
, arg
);
4058 void ssl_set_masks(SSL_CONNECTION
*s
)
4061 uint32_t *pvalid
= s
->s3
.tmp
.valid_flags
;
4062 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
4063 unsigned long mask_k
, mask_a
;
4064 int have_ecc_cert
, ecdsa_ok
;
4069 dh_tmp
= (c
->dh_tmp
!= NULL
4070 || c
->dh_tmp_cb
!= NULL
4073 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4074 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
4075 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
4076 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
4080 OSSL_TRACE4(TLS_CIPHER
, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n",
4081 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
4083 #ifndef OPENSSL_NO_GOST
4084 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
4085 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4086 mask_a
|= SSL_aGOST12
;
4088 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
4089 mask_k
|= SSL_kGOST
| SSL_kGOST18
;
4090 mask_a
|= SSL_aGOST12
;
4092 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
4093 mask_k
|= SSL_kGOST
;
4094 mask_a
|= SSL_aGOST01
;
4105 * If we only have an RSA-PSS certificate allow RSA authentication
4106 * if TLS 1.2 and peer supports it.
4109 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
4110 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
4111 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
))
4118 mask_a
|= SSL_aNULL
;
4121 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
4122 * depending on the key usage extension.
4124 if (have_ecc_cert
) {
4126 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
4127 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
4128 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
4131 mask_a
|= SSL_aECDSA
;
4133 /* Allow Ed25519 for TLS 1.2 if peer supports it */
4134 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
4135 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
4136 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4137 mask_a
|= SSL_aECDSA
;
4139 /* Allow Ed448 for TLS 1.2 if peer supports it */
4140 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
4141 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
4142 && TLS1_get_version(&s
->ssl
) == TLS1_2_VERSION
)
4143 mask_a
|= SSL_aECDSA
;
4145 mask_k
|= SSL_kECDHE
;
4147 #ifndef OPENSSL_NO_PSK
4150 if (mask_k
& SSL_kRSA
)
4151 mask_k
|= SSL_kRSAPSK
;
4152 if (mask_k
& SSL_kDHE
)
4153 mask_k
|= SSL_kDHEPSK
;
4154 if (mask_k
& SSL_kECDHE
)
4155 mask_k
|= SSL_kECDHEPSK
;
4158 s
->s3
.tmp
.mask_k
= mask_k
;
4159 s
->s3
.tmp
.mask_a
= mask_a
;
4162 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CONNECTION
*s
)
4164 if (s
->s3
.tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
4165 /* key usage, if present, must allow signing */
4166 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
4167 ERR_raise(ERR_LIB_SSL
, SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
4171 return 1; /* all checks are ok */
4174 int ssl_get_server_cert_serverinfo(SSL_CONNECTION
*s
,
4175 const unsigned char **serverinfo
,
4176 size_t *serverinfo_length
)
4178 CERT_PKEY
*cpk
= s
->s3
.tmp
.cert
;
4179 *serverinfo_length
= 0;
4181 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
4184 *serverinfo
= cpk
->serverinfo
;
4185 *serverinfo_length
= cpk
->serverinfo_length
;
4189 void ssl_update_cache(SSL_CONNECTION
*s
, int mode
)
4194 * If the session_id_length is 0, we are not supposed to cache it, and it
4195 * would be rather hard to do anyway :-)
4197 if (s
->session
->session_id_length
== 0)
4201 * If sid_ctx_length is 0 there is no specific application context
4202 * associated with this session, so when we try to resume it and
4203 * SSL_VERIFY_PEER is requested to verify the client identity, we have no
4204 * indication that this is actually a session for the proper application
4205 * context, and the *handshake* will fail, not just the resumption attempt.
4206 * Do not cache (on the server) these sessions that are not resumable
4207 * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set).
4209 if (s
->server
&& s
->session
->sid_ctx_length
== 0
4210 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
4213 i
= s
->session_ctx
->session_cache_mode
;
4215 && (!s
->hit
|| SSL_CONNECTION_IS_TLS13(s
))) {
4217 * Add the session to the internal cache. In server side TLSv1.3 we
4218 * normally don't do this because by default it's a full stateless ticket
4219 * with only a dummy session id so there is no reason to cache it,
4221 * - we are doing early_data, in which case we cache so that we can
4223 * - the application has set a remove_session_cb so needs to know about
4224 * session timeout events
4225 * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket
4227 if ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) == 0
4228 && (!SSL_CONNECTION_IS_TLS13(s
)
4230 || (s
->max_early_data
> 0
4231 && (s
->options
& SSL_OP_NO_ANTI_REPLAY
) == 0)
4232 || s
->session_ctx
->remove_session_cb
!= NULL
4233 || (s
->options
& SSL_OP_NO_TICKET
) != 0))
4234 SSL_CTX_add_session(s
->session_ctx
, s
->session
);
4237 * Add the session to the external cache. We do this even in server side
4238 * TLSv1.3 without early data because some applications just want to
4239 * know about the creation of a session and aren't doing a full cache.
4241 if (s
->session_ctx
->new_session_cb
!= NULL
) {
4242 SSL_SESSION_up_ref(s
->session
);
4243 if (!s
->session_ctx
->new_session_cb(SSL_CONNECTION_GET_SSL(s
),
4245 SSL_SESSION_free(s
->session
);
4249 /* auto flush every 255 connections */
4250 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
4251 TSAN_QUALIFIER
int *stat
;
4253 if (mode
& SSL_SESS_CACHE_CLIENT
)
4254 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
4256 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
4257 if ((ssl_tsan_load(s
->session_ctx
, stat
) & 0xff) == 0xff)
4258 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
4262 const SSL_METHOD
*SSL_CTX_get_ssl_method(const SSL_CTX
*ctx
)
4267 const SSL_METHOD
*SSL_get_ssl_method(const SSL
*s
)
4272 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
4275 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4277 /* TODO(QUIC): Do we want this for QUIC? */
4279 || (s
->type
!= SSL_TYPE_SSL_CONNECTION
&& s
->method
!= meth
))
4282 if (s
->method
!= meth
) {
4283 const SSL_METHOD
*sm
= s
->method
;
4284 int (*hf
) (SSL
*) = sc
->handshake_func
;
4286 if (sm
->version
== meth
->version
)
4291 ret
= s
->method
->ssl_init(s
);
4294 if (hf
== sm
->ssl_connect
)
4295 sc
->handshake_func
= meth
->ssl_connect
;
4296 else if (hf
== sm
->ssl_accept
)
4297 sc
->handshake_func
= meth
->ssl_accept
;
4302 int SSL_get_error(const SSL
*s
, int i
)
4307 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4310 return SSL_ERROR_NONE
;
4312 /* TODO(QUIC): This will need more handling for QUIC_CONNECTIONs */
4314 return SSL_ERROR_SSL
;
4317 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
4318 * where we do encode the error
4320 if ((l
= ERR_peek_error()) != 0) {
4321 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
4322 return SSL_ERROR_SYSCALL
;
4324 return SSL_ERROR_SSL
;
4327 if (SSL_want_read(s
)) {
4328 bio
= SSL_get_rbio(s
);
4329 if (BIO_should_read(bio
))
4330 return SSL_ERROR_WANT_READ
;
4331 else if (BIO_should_write(bio
))
4333 * This one doesn't make too much sense ... We never try to write
4334 * to the rbio, and an application program where rbio and wbio
4335 * are separate couldn't even know what it should wait for.
4336 * However if we ever set s->rwstate incorrectly (so that we have
4337 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
4338 * wbio *are* the same, this test works around that bug; so it
4339 * might be safer to keep it.
4341 return SSL_ERROR_WANT_WRITE
;
4342 else if (BIO_should_io_special(bio
)) {
4343 reason
= BIO_get_retry_reason(bio
);
4344 if (reason
== BIO_RR_CONNECT
)
4345 return SSL_ERROR_WANT_CONNECT
;
4346 else if (reason
== BIO_RR_ACCEPT
)
4347 return SSL_ERROR_WANT_ACCEPT
;
4349 return SSL_ERROR_SYSCALL
; /* unknown */
4353 if (SSL_want_write(s
)) {
4354 /* Access wbio directly - in order to use the buffered bio if present */
4356 if (BIO_should_write(bio
))
4357 return SSL_ERROR_WANT_WRITE
;
4358 else if (BIO_should_read(bio
))
4360 * See above (SSL_want_read(s) with BIO_should_write(bio))
4362 return SSL_ERROR_WANT_READ
;
4363 else if (BIO_should_io_special(bio
)) {
4364 reason
= BIO_get_retry_reason(bio
);
4365 if (reason
== BIO_RR_CONNECT
)
4366 return SSL_ERROR_WANT_CONNECT
;
4367 else if (reason
== BIO_RR_ACCEPT
)
4368 return SSL_ERROR_WANT_ACCEPT
;
4370 return SSL_ERROR_SYSCALL
;
4373 if (SSL_want_x509_lookup(s
))
4374 return SSL_ERROR_WANT_X509_LOOKUP
;
4375 if (SSL_want_retry_verify(s
))
4376 return SSL_ERROR_WANT_RETRY_VERIFY
;
4377 if (SSL_want_async(s
))
4378 return SSL_ERROR_WANT_ASYNC
;
4379 if (SSL_want_async_job(s
))
4380 return SSL_ERROR_WANT_ASYNC_JOB
;
4381 if (SSL_want_client_hello_cb(s
))
4382 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
4384 if ((sc
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
4385 (sc
->s3
.warn_alert
== SSL_AD_CLOSE_NOTIFY
))
4386 return SSL_ERROR_ZERO_RETURN
;
4388 return SSL_ERROR_SYSCALL
;
4391 static int ssl_do_handshake_intern(void *vargs
)
4393 struct ssl_async_args
*args
= (struct ssl_async_args
*)vargs
;
4395 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4400 return sc
->handshake_func(s
);
4403 int SSL_do_handshake(SSL
*s
)
4406 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4408 /* TODO(QUIC): Special handling for QUIC will be needed */
4412 if (sc
->handshake_func
== NULL
) {
4413 ERR_raise(ERR_LIB_SSL
, SSL_R_CONNECTION_TYPE_NOT_SET
);
4417 ossl_statem_check_finish_init(sc
, -1);
4419 s
->method
->ssl_renegotiate_check(s
, 0);
4421 if (SSL_in_init(s
) || SSL_in_before(s
)) {
4422 if ((sc
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
4423 struct ssl_async_args args
;
4425 memset(&args
, 0, sizeof(args
));
4428 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
4430 ret
= sc
->handshake_func(s
);
4436 void SSL_set_accept_state(SSL
*s
)
4438 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4440 /* TODO(QUIC): Special handling for QUIC will be needed */
4446 ossl_statem_clear(sc
);
4447 sc
->handshake_func
= s
->method
->ssl_accept
;
4451 void SSL_set_connect_state(SSL
*s
)
4453 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4455 /* TODO(QUIC): Special handling for QUIC will be needed */
4461 ossl_statem_clear(sc
);
4462 sc
->handshake_func
= s
->method
->ssl_connect
;
4466 int ssl_undefined_function(SSL
*s
)
4468 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4472 int ssl_undefined_void_function(void)
4474 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4478 int ssl_undefined_const_function(const SSL
*s
)
4483 const SSL_METHOD
*ssl_bad_method(int ver
)
4485 ERR_raise(ERR_LIB_SSL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
4489 const char *ssl_protocol_to_string(int version
)
4493 case TLS1_3_VERSION
:
4496 case TLS1_2_VERSION
:
4499 case TLS1_1_VERSION
:
4514 case DTLS1_2_VERSION
:
4522 const char *SSL_get_version(const SSL
*s
)
4524 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4526 /* TODO(QUIC): Should QUIC return QUIC or TLSv1.3? */
4530 return ssl_protocol_to_string(sc
->version
);
4533 static int dup_ca_names(STACK_OF(X509_NAME
) **dst
, STACK_OF(X509_NAME
) *src
)
4535 STACK_OF(X509_NAME
) *sk
;
4544 if ((sk
= sk_X509_NAME_new_null()) == NULL
)
4546 for (i
= 0; i
< sk_X509_NAME_num(src
); i
++) {
4547 xn
= X509_NAME_dup(sk_X509_NAME_value(src
, i
));
4549 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4552 if (sk_X509_NAME_insert(sk
, xn
, i
) == 0) {
4554 sk_X509_NAME_pop_free(sk
, X509_NAME_free
);
4563 SSL
*SSL_dup(SSL
*s
)
4567 /* TODO(QUIC): Add a SSL_METHOD function for duplication */
4568 SSL_CONNECTION
*retsc
;
4569 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4574 /* If we're not quiescent, just up_ref! */
4575 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
4576 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
4581 * Otherwise, copy configuration state, and session if set.
4583 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
4585 if ((retsc
= SSL_CONNECTION_FROM_SSL_ONLY(ret
)) == NULL
)
4588 if (sc
->session
!= NULL
) {
4590 * Arranges to share the same session via up_ref. This "copies"
4591 * session-id, SSL_METHOD, sid_ctx, and 'cert'
4593 if (!SSL_copy_session_id(ret
, s
))
4597 * No session has been established yet, so we have to expect that
4598 * s->cert or ret->cert will be changed later -- they should not both
4599 * point to the same object, and thus we can't use
4600 * SSL_copy_session_id.
4602 if (!SSL_set_ssl_method(ret
, s
->method
))
4605 if (sc
->cert
!= NULL
) {
4606 ssl_cert_free(retsc
->cert
);
4607 retsc
->cert
= ssl_cert_dup(sc
->cert
);
4608 if (retsc
->cert
== NULL
)
4612 if (!SSL_set_session_id_context(ret
, sc
->sid_ctx
,
4613 (int)sc
->sid_ctx_length
))
4617 if (!ssl_dane_dup(retsc
, sc
))
4619 retsc
->version
= sc
->version
;
4620 retsc
->options
= sc
->options
;
4621 retsc
->min_proto_version
= sc
->min_proto_version
;
4622 retsc
->max_proto_version
= sc
->max_proto_version
;
4623 retsc
->mode
= sc
->mode
;
4624 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
4625 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
4626 retsc
->msg_callback
= sc
->msg_callback
;
4627 retsc
->msg_callback_arg
= sc
->msg_callback_arg
;
4628 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
4629 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
4630 retsc
->generate_session_id
= sc
->generate_session_id
;
4632 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
4634 /* copy app data, a little dangerous perhaps */
4635 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
4638 retsc
->server
= sc
->server
;
4639 if (sc
->handshake_func
) {
4641 SSL_set_accept_state(ret
);
4643 SSL_set_connect_state(ret
);
4645 retsc
->shutdown
= sc
->shutdown
;
4646 retsc
->hit
= sc
->hit
;
4648 retsc
->default_passwd_callback
= sc
->default_passwd_callback
;
4649 retsc
->default_passwd_callback_userdata
= sc
->default_passwd_callback_userdata
;
4651 X509_VERIFY_PARAM_inherit(retsc
->param
, sc
->param
);
4653 /* dup the cipher_list and cipher_list_by_id stacks */
4654 if (sc
->cipher_list
!= NULL
) {
4655 if ((retsc
->cipher_list
= sk_SSL_CIPHER_dup(sc
->cipher_list
)) == NULL
)
4658 if (sc
->cipher_list_by_id
!= NULL
)
4659 if ((retsc
->cipher_list_by_id
= sk_SSL_CIPHER_dup(sc
->cipher_list_by_id
))
4663 /* Dup the client_CA list */
4664 if (!dup_ca_names(&retsc
->ca_names
, sc
->ca_names
)
4665 || !dup_ca_names(&retsc
->client_ca_names
, sc
->client_ca_names
))
4675 void ssl_clear_cipher_ctx(SSL_CONNECTION
*s
)
4677 if (s
->enc_read_ctx
!= NULL
) {
4678 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
4679 s
->enc_read_ctx
= NULL
;
4681 if (s
->enc_write_ctx
!= NULL
) {
4682 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
4683 s
->enc_write_ctx
= NULL
;
4685 #ifndef OPENSSL_NO_COMP
4686 COMP_CTX_free(s
->expand
);
4688 COMP_CTX_free(s
->compress
);
4693 X509
*SSL_get_certificate(const SSL
*s
)
4695 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
4700 if (sc
->cert
!= NULL
)
4701 return sc
->cert
->key
->x509
;
4706 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
4708 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4713 if (sc
->cert
!= NULL
)
4714 return sc
->cert
->key
->privatekey
;
4719 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
4721 if (ctx
->cert
!= NULL
)
4722 return ctx
->cert
->key
->x509
;
4727 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
4729 if (ctx
->cert
!= NULL
)
4730 return ctx
->cert
->key
->privatekey
;
4735 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
4737 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4742 if ((sc
->session
!= NULL
) && (sc
->session
->cipher
!= NULL
))
4743 return sc
->session
->cipher
;
4747 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
4749 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4754 return sc
->s3
.tmp
.new_cipher
;
4757 const COMP_METHOD
*SSL_get_current_compression(const SSL
*s
)
4759 #ifndef OPENSSL_NO_COMP
4760 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4765 return sc
->compress
? COMP_CTX_get_method(sc
->compress
) : NULL
;
4771 const COMP_METHOD
*SSL_get_current_expansion(const SSL
*s
)
4773 #ifndef OPENSSL_NO_COMP
4774 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4779 return sc
->expand
? COMP_CTX_get_method(sc
->expand
) : NULL
;
4785 int ssl_init_wbio_buffer(SSL_CONNECTION
*s
)
4789 if (s
->bbio
!= NULL
) {
4790 /* Already buffered. */
4794 bbio
= BIO_new(BIO_f_buffer());
4795 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
4797 ERR_raise(ERR_LIB_SSL
, ERR_R_BUF_LIB
);
4801 s
->wbio
= BIO_push(bbio
, s
->wbio
);
4806 int ssl_free_wbio_buffer(SSL_CONNECTION
*s
)
4808 /* callers ensure s is never null */
4809 if (s
->bbio
== NULL
)
4812 s
->wbio
= BIO_pop(s
->wbio
);
4819 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
4821 ctx
->quiet_shutdown
= mode
;
4824 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
4826 return ctx
->quiet_shutdown
;
4829 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
4831 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4833 /* TODO(QUIC): Do we want this for QUIC? */
4837 sc
->quiet_shutdown
= mode
;
4840 int SSL_get_quiet_shutdown(const SSL
*s
)
4842 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4844 /* TODO(QUIC): Do we want this for QUIC? */
4848 return sc
->quiet_shutdown
;
4851 void SSL_set_shutdown(SSL
*s
, int mode
)
4853 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(s
);
4855 /* TODO(QUIC): Do we want this for QUIC? */
4859 sc
->shutdown
= mode
;
4862 int SSL_get_shutdown(const SSL
*s
)
4864 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL_ONLY(s
);
4866 /* TODO(QUIC): Do we want this for QUIC? */
4870 return sc
->shutdown
;
4873 int SSL_version(const SSL
*s
)
4875 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4877 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4884 int SSL_client_version(const SSL
*s
)
4886 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
4888 /* TODO(QUIC): Do we want to report QUIC version this way instead? */
4892 return sc
->client_version
;
4895 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
4900 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
4903 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL_ONLY(ssl
);
4905 /* TODO(QUIC): Do we need this for QUIC support? */
4909 if (ssl
->ctx
== ctx
)
4912 ctx
= sc
->session_ctx
;
4913 new_cert
= ssl_cert_dup(ctx
->cert
);
4914 if (new_cert
== NULL
) {
4918 if (!custom_exts_copy_flags(&new_cert
->custext
, &sc
->cert
->custext
)) {
4919 ssl_cert_free(new_cert
);
4923 ssl_cert_free(sc
->cert
);
4924 sc
->cert
= new_cert
;
4927 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
4928 * so setter APIs must prevent invalid lengths from entering the system.
4930 if (!ossl_assert(sc
->sid_ctx_length
<= sizeof(sc
->sid_ctx
)))
4934 * If the session ID context matches that of the parent SSL_CTX,
4935 * inherit it from the new SSL_CTX as well. If however the context does
4936 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
4937 * leave it unchanged.
4939 if ((ssl
->ctx
!= NULL
) &&
4940 (sc
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
4941 (memcmp(sc
->sid_ctx
, ssl
->ctx
->sid_ctx
, sc
->sid_ctx_length
) == 0)) {
4942 sc
->sid_ctx_length
= ctx
->sid_ctx_length
;
4943 memcpy(&sc
->sid_ctx
, &ctx
->sid_ctx
, sizeof(sc
->sid_ctx
));
4946 SSL_CTX_up_ref(ctx
);
4947 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
4953 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
4955 return X509_STORE_set_default_paths_ex(ctx
->cert_store
, ctx
->libctx
,
4959 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
4961 X509_LOOKUP
*lookup
;
4963 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
4967 /* We ignore errors, in case the directory doesn't exist */
4970 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
4977 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
4979 X509_LOOKUP
*lookup
;
4981 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
4985 /* We ignore errors, in case the file doesn't exist */
4988 X509_LOOKUP_load_file_ex(lookup
, NULL
, X509_FILETYPE_DEFAULT
, ctx
->libctx
,
4996 int SSL_CTX_set_default_verify_store(SSL_CTX
*ctx
)
4998 X509_LOOKUP
*lookup
;
5000 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_store());
5004 /* We ignore errors, in case the directory doesn't exist */
5007 X509_LOOKUP_add_store_ex(lookup
, NULL
, ctx
->libctx
, ctx
->propq
);
5014 int SSL_CTX_load_verify_file(SSL_CTX
*ctx
, const char *CAfile
)
5016 return X509_STORE_load_file_ex(ctx
->cert_store
, CAfile
, ctx
->libctx
,
5020 int SSL_CTX_load_verify_dir(SSL_CTX
*ctx
, const char *CApath
)
5022 return X509_STORE_load_path(ctx
->cert_store
, CApath
);
5025 int SSL_CTX_load_verify_store(SSL_CTX
*ctx
, const char *CAstore
)
5027 return X509_STORE_load_store_ex(ctx
->cert_store
, CAstore
, ctx
->libctx
,
5031 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
5034 if (CAfile
== NULL
&& CApath
== NULL
)
5036 if (CAfile
!= NULL
&& !SSL_CTX_load_verify_file(ctx
, CAfile
))
5038 if (CApath
!= NULL
&& !SSL_CTX_load_verify_dir(ctx
, CApath
))
5043 void SSL_set_info_callback(SSL
*ssl
,
5044 void (*cb
) (const SSL
*ssl
, int type
, int val
))
5046 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5051 sc
->info_callback
= cb
;
5055 * One compiler (Diab DCC) doesn't like argument names in returned function
5058 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
5061 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5066 return sc
->info_callback
;
5069 void SSL_set_verify_result(SSL
*ssl
, long arg
)
5071 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5076 sc
->verify_result
= arg
;
5079 long SSL_get_verify_result(const SSL
*ssl
)
5081 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5086 return sc
->verify_result
;
5089 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5091 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5097 return sizeof(sc
->s3
.client_random
);
5098 if (outlen
> sizeof(sc
->s3
.client_random
))
5099 outlen
= sizeof(sc
->s3
.client_random
);
5100 memcpy(out
, sc
->s3
.client_random
, outlen
);
5104 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
5106 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5112 return sizeof(sc
->s3
.server_random
);
5113 if (outlen
> sizeof(sc
->s3
.server_random
))
5114 outlen
= sizeof(sc
->s3
.server_random
);
5115 memcpy(out
, sc
->s3
.server_random
, outlen
);
5119 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
5120 unsigned char *out
, size_t outlen
)
5123 return session
->master_key_length
;
5124 if (outlen
> session
->master_key_length
)
5125 outlen
= session
->master_key_length
;
5126 memcpy(out
, session
->master_key
, outlen
);
5130 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
5133 if (len
> sizeof(sess
->master_key
))
5136 memcpy(sess
->master_key
, in
, len
);
5137 sess
->master_key_length
= len
;
5142 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
5144 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5147 void *SSL_get_ex_data(const SSL
*s
, int idx
)
5149 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5152 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
5154 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
5157 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
5159 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
5162 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
5164 return ctx
->cert_store
;
5167 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5169 X509_STORE_free(ctx
->cert_store
);
5170 ctx
->cert_store
= store
;
5173 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
5176 X509_STORE_up_ref(store
);
5177 SSL_CTX_set_cert_store(ctx
, store
);
5180 int SSL_want(const SSL
*s
)
5182 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5190 #ifndef OPENSSL_NO_PSK
5191 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
5193 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5194 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5197 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
5198 if (identity_hint
!= NULL
) {
5199 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5200 if (ctx
->cert
->psk_identity_hint
== NULL
)
5203 ctx
->cert
->psk_identity_hint
= NULL
;
5207 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
5209 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5214 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
5215 ERR_raise(ERR_LIB_SSL
, SSL_R_DATA_LENGTH_TOO_LONG
);
5218 OPENSSL_free(sc
->cert
->psk_identity_hint
);
5219 if (identity_hint
!= NULL
) {
5220 sc
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
5221 if (sc
->cert
->psk_identity_hint
== NULL
)
5224 sc
->cert
->psk_identity_hint
= NULL
;
5228 const char *SSL_get_psk_identity_hint(const SSL
*s
)
5230 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5232 if (sc
== NULL
|| sc
->session
== NULL
)
5235 return sc
->session
->psk_identity_hint
;
5238 const char *SSL_get_psk_identity(const SSL
*s
)
5240 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5242 if (sc
== NULL
|| sc
->session
== NULL
)
5245 return sc
->session
->psk_identity
;
5248 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
5250 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5255 sc
->psk_client_callback
= cb
;
5258 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
5260 ctx
->psk_client_callback
= cb
;
5263 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
5265 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5270 sc
->psk_server_callback
= cb
;
5273 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
5275 ctx
->psk_server_callback
= cb
;
5279 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
5281 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5286 sc
->psk_find_session_cb
= cb
;
5289 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
5290 SSL_psk_find_session_cb_func cb
)
5292 ctx
->psk_find_session_cb
= cb
;
5295 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
5297 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5302 sc
->psk_use_session_cb
= cb
;
5305 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
5306 SSL_psk_use_session_cb_func cb
)
5308 ctx
->psk_use_session_cb
= cb
;
5311 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
5312 void (*cb
) (int write_p
, int version
,
5313 int content_type
, const void *buf
,
5314 size_t len
, SSL
*ssl
, void *arg
))
5316 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5319 void SSL_set_msg_callback(SSL
*ssl
,
5320 void (*cb
) (int write_p
, int version
,
5321 int content_type
, const void *buf
,
5322 size_t len
, SSL
*ssl
, void *arg
))
5324 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
5327 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
5328 int (*cb
) (SSL
*ssl
,
5332 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5333 (void (*)(void))cb
);
5336 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
5337 int (*cb
) (SSL
*ssl
,
5338 int is_forward_secure
))
5340 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
5341 (void (*)(void))cb
);
5344 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
5345 size_t (*cb
) (SSL
*ssl
, int type
,
5346 size_t len
, void *arg
))
5348 ctx
->record_padding_cb
= cb
;
5351 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
5353 ctx
->record_padding_arg
= arg
;
5356 void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX
*ctx
)
5358 return ctx
->record_padding_arg
;
5361 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
5363 /* block size of 0 or 1 is basically no padding */
5364 if (block_size
== 1)
5365 ctx
->block_padding
= 0;
5366 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5367 ctx
->block_padding
= block_size
;
5373 int SSL_set_record_padding_callback(SSL
*ssl
,
5374 size_t (*cb
) (SSL
*ssl
, int type
,
5375 size_t len
, void *arg
))
5378 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5383 b
= SSL_get_wbio(ssl
);
5384 if (b
== NULL
|| !BIO_get_ktls_send(b
)) {
5385 sc
->record_padding_cb
= cb
;
5391 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
5393 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5398 sc
->record_padding_arg
= arg
;
5401 void *SSL_get_record_padding_callback_arg(const SSL
*ssl
)
5403 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(ssl
);
5408 return sc
->record_padding_arg
;
5411 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
5413 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
5418 /* block size of 0 or 1 is basically no padding */
5419 if (block_size
== 1)
5420 sc
->block_padding
= 0;
5421 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
5422 sc
->block_padding
= block_size
;
5428 int SSL_set_num_tickets(SSL
*s
, size_t num_tickets
)
5430 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5435 sc
->num_tickets
= num_tickets
;
5440 size_t SSL_get_num_tickets(const SSL
*s
)
5442 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5447 return sc
->num_tickets
;
5450 int SSL_CTX_set_num_tickets(SSL_CTX
*ctx
, size_t num_tickets
)
5452 ctx
->num_tickets
= num_tickets
;
5457 size_t SSL_CTX_get_num_tickets(const SSL_CTX
*ctx
)
5459 return ctx
->num_tickets
;
5463 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
5464 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
5465 * If EVP_MD pointer is passed, initializes ctx with this |md|.
5466 * Returns the newly allocated ctx;
5469 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
5471 ssl_clear_hash_ctx(hash
);
5472 *hash
= EVP_MD_CTX_new();
5473 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
5474 EVP_MD_CTX_free(*hash
);
5481 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
5484 EVP_MD_CTX_free(*hash
);
5488 /* Retrieve handshake hashes */
5489 int ssl_handshake_hash(SSL_CONNECTION
*s
,
5490 unsigned char *out
, size_t outlen
,
5493 EVP_MD_CTX
*ctx
= NULL
;
5494 EVP_MD_CTX
*hdgst
= s
->s3
.handshake_dgst
;
5495 int hashleni
= EVP_MD_CTX_get_size(hdgst
);
5498 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
5499 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5503 ctx
= EVP_MD_CTX_new();
5505 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5509 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
5510 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
5511 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
5515 *hashlen
= hashleni
;
5519 EVP_MD_CTX_free(ctx
);
5523 int SSL_session_reused(const SSL
*s
)
5525 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5533 int SSL_is_server(const SSL
*s
)
5535 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5543 #ifndef OPENSSL_NO_DEPRECATED_1_1_0
5544 void SSL_set_debug(SSL
*s
, int debug
)
5546 /* Old function was do-nothing anyway... */
5552 void SSL_set_security_level(SSL
*s
, int level
)
5554 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5559 sc
->cert
->sec_level
= level
;
5562 int SSL_get_security_level(const SSL
*s
)
5564 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5569 return sc
->cert
->sec_level
;
5572 void SSL_set_security_callback(SSL
*s
,
5573 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5574 int op
, int bits
, int nid
,
5575 void *other
, void *ex
))
5577 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5582 sc
->cert
->sec_cb
= cb
;
5585 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
5586 const SSL_CTX
*ctx
, int op
,
5587 int bits
, int nid
, void *other
,
5589 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5594 return sc
->cert
->sec_cb
;
5597 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
5599 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5604 sc
->cert
->sec_ex
= ex
;
5607 void *SSL_get0_security_ex_data(const SSL
*s
)
5609 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5614 return sc
->cert
->sec_ex
;
5617 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
5619 ctx
->cert
->sec_level
= level
;
5622 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
5624 return ctx
->cert
->sec_level
;
5627 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
5628 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
5629 int op
, int bits
, int nid
,
5630 void *other
, void *ex
))
5632 ctx
->cert
->sec_cb
= cb
;
5635 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
5641 return ctx
->cert
->sec_cb
;
5644 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
5646 ctx
->cert
->sec_ex
= ex
;
5649 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
5651 return ctx
->cert
->sec_ex
;
5654 uint64_t SSL_CTX_get_options(const SSL_CTX
*ctx
)
5656 return ctx
->options
;
5659 uint64_t SSL_get_options(const SSL
*s
)
5661 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5669 uint64_t SSL_CTX_set_options(SSL_CTX
*ctx
, uint64_t op
)
5671 return ctx
->options
|= op
;
5674 uint64_t SSL_set_options(SSL
*s
, uint64_t op
)
5676 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5677 OSSL_PARAM options
[2], *opts
= options
;
5684 *opts
++ = OSSL_PARAM_construct_uint64(OSSL_LIBSSL_RECORD_LAYER_PARAM_OPTIONS
,
5686 *opts
= OSSL_PARAM_construct_end();
5688 /* Ignore return value */
5689 sc
->rlayer
.rrlmethod
->set_options(sc
->rlayer
.rrl
, options
);
5694 uint64_t SSL_CTX_clear_options(SSL_CTX
*ctx
, uint64_t op
)
5696 return ctx
->options
&= ~op
;
5699 uint64_t SSL_clear_options(SSL
*s
, uint64_t op
)
5701 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5706 return sc
->options
&= ~op
;
5709 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
5711 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5716 return sc
->verified_chain
;
5719 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
5721 #ifndef OPENSSL_NO_CT
5724 * Moves SCTs from the |src| stack to the |dst| stack.
5725 * The source of each SCT will be set to |origin|.
5726 * If |dst| points to a NULL pointer, a new stack will be created and owned by
5728 * Returns the number of SCTs moved, or a negative integer if an error occurs.
5730 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
5731 sct_source_t origin
)
5737 *dst
= sk_SCT_new_null();
5739 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
5744 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
5745 if (SCT_set_source(sct
, origin
) != 1)
5748 if (sk_SCT_push(*dst
, sct
) <= 0)
5756 sk_SCT_push(src
, sct
); /* Put the SCT back */
5761 * Look for data collected during ServerHello and parse if found.
5762 * Returns the number of SCTs extracted.
5764 static int ct_extract_tls_extension_scts(SSL_CONNECTION
*s
)
5766 int scts_extracted
= 0;
5768 if (s
->ext
.scts
!= NULL
) {
5769 const unsigned char *p
= s
->ext
.scts
;
5770 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
5772 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
5774 SCT_LIST_free(scts
);
5777 return scts_extracted
;
5781 * Checks for an OCSP response and then attempts to extract any SCTs found if it
5782 * contains an SCT X509 extension. They will be stored in |s->scts|.
5784 * - The number of SCTs extracted, assuming an OCSP response exists.
5785 * - 0 if no OCSP response exists or it contains no SCTs.
5786 * - A negative integer if an error occurs.
5788 static int ct_extract_ocsp_response_scts(SSL_CONNECTION
*s
)
5790 # ifndef OPENSSL_NO_OCSP
5791 int scts_extracted
= 0;
5792 const unsigned char *p
;
5793 OCSP_BASICRESP
*br
= NULL
;
5794 OCSP_RESPONSE
*rsp
= NULL
;
5795 STACK_OF(SCT
) *scts
= NULL
;
5798 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
5801 p
= s
->ext
.ocsp
.resp
;
5802 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
5806 br
= OCSP_response_get1_basic(rsp
);
5810 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
5811 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
5817 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
5819 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
5820 if (scts_extracted
< 0)
5824 SCT_LIST_free(scts
);
5825 OCSP_BASICRESP_free(br
);
5826 OCSP_RESPONSE_free(rsp
);
5827 return scts_extracted
;
5829 /* Behave as if no OCSP response exists */
5835 * Attempts to extract SCTs from the peer certificate.
5836 * Return the number of SCTs extracted, or a negative integer if an error
5839 static int ct_extract_x509v3_extension_scts(SSL_CONNECTION
*s
)
5841 int scts_extracted
= 0;
5842 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5845 STACK_OF(SCT
) *scts
=
5846 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
5849 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
5851 SCT_LIST_free(scts
);
5854 return scts_extracted
;
5858 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
5859 * response (if it exists) and X509v3 extensions in the certificate.
5860 * Returns NULL if an error occurs.
5862 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
5864 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5869 if (!sc
->scts_parsed
) {
5870 if (ct_extract_tls_extension_scts(sc
) < 0 ||
5871 ct_extract_ocsp_response_scts(sc
) < 0 ||
5872 ct_extract_x509v3_extension_scts(sc
) < 0)
5875 sc
->scts_parsed
= 1;
5882 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
5883 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5888 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
5889 const STACK_OF(SCT
) *scts
, void *unused_arg
)
5891 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
5894 for (i
= 0; i
< count
; ++i
) {
5895 SCT
*sct
= sk_SCT_value(scts
, i
);
5896 int status
= SCT_get_validation_status(sct
);
5898 if (status
== SCT_VALIDATION_STATUS_VALID
)
5901 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_VALID_SCTS
);
5905 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
5908 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
5914 * Since code exists that uses the custom extension handler for CT, look
5915 * for this and throw an error if they have already registered to use CT.
5917 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
5918 TLSEXT_TYPE_signed_certificate_timestamp
))
5920 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5924 if (callback
!= NULL
) {
5926 * If we are validating CT, then we MUST accept SCTs served via OCSP
5928 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
5932 sc
->ct_validation_callback
= callback
;
5933 sc
->ct_validation_callback_arg
= arg
;
5938 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
5939 ssl_ct_validation_cb callback
, void *arg
)
5942 * Since code exists that uses the custom extension handler for CT, look for
5943 * this and throw an error if they have already registered to use CT.
5945 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
5946 TLSEXT_TYPE_signed_certificate_timestamp
))
5948 ERR_raise(ERR_LIB_SSL
, SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
5952 ctx
->ct_validation_callback
= callback
;
5953 ctx
->ct_validation_callback_arg
= arg
;
5957 int SSL_ct_is_enabled(const SSL
*s
)
5959 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
5964 return sc
->ct_validation_callback
!= NULL
;
5967 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
5969 return ctx
->ct_validation_callback
!= NULL
;
5972 int ssl_validate_ct(SSL_CONNECTION
*s
)
5975 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
5977 SSL_DANE
*dane
= &s
->dane
;
5978 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
5979 const STACK_OF(SCT
) *scts
;
5982 * If no callback is set, the peer is anonymous, or its chain is invalid,
5983 * skip SCT validation - just return success. Applications that continue
5984 * handshakes without certificates, with unverified chains, or pinned leaf
5985 * certificates are outside the scope of the WebPKI and CT.
5987 * The above exclusions notwithstanding the vast majority of peers will
5988 * have rather ordinary certificate chains validated by typical
5989 * applications that perform certificate verification and therefore will
5990 * process SCTs when enabled.
5992 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
5993 s
->verify_result
!= X509_V_OK
||
5994 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
5998 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
5999 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
6001 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
6002 switch (dane
->mtlsa
->usage
) {
6003 case DANETLS_USAGE_DANE_TA
:
6004 case DANETLS_USAGE_DANE_EE
:
6009 ctx
= CT_POLICY_EVAL_CTX_new_ex(SSL_CONNECTION_GET_CTX(s
)->libctx
,
6010 SSL_CONNECTION_GET_CTX(s
)->propq
);
6012 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
6016 issuer
= sk_X509_value(s
->verified_chain
, 1);
6017 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
6018 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
6019 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
,
6020 SSL_CONNECTION_GET_CTX(s
)->ctlog_store
);
6021 CT_POLICY_EVAL_CTX_set_time(
6022 ctx
, (uint64_t)SSL_SESSION_get_time(s
->session
) * 1000);
6024 scts
= SSL_get0_peer_scts(SSL_CONNECTION_GET_SSL(s
));
6027 * This function returns success (> 0) only when all the SCTs are valid, 0
6028 * when some are invalid, and < 0 on various internal errors (out of
6029 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
6030 * reason to abort the handshake, that decision is up to the callback.
6031 * Therefore, we error out only in the unexpected case that the return
6032 * value is negative.
6034 * XXX: One might well argue that the return value of this function is an
6035 * unfortunate design choice. Its job is only to determine the validation
6036 * status of each of the provided SCTs. So long as it correctly separates
6037 * the wheat from the chaff it should return success. Failure in this case
6038 * ought to correspond to an inability to carry out its duties.
6040 if (SCT_LIST_validate(scts
, ctx
) < 0) {
6041 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_SCT_VERIFICATION_FAILED
);
6045 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
6047 ret
= 0; /* This function returns 0 on failure */
6049 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_R_CALLBACK_FAILED
);
6052 CT_POLICY_EVAL_CTX_free(ctx
);
6054 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
6055 * failure return code here. Also the application may wish the complete
6056 * the handshake, and then disconnect cleanly at a higher layer, after
6057 * checking the verification status of the completed connection.
6059 * We therefore force a certificate verification failure which will be
6060 * visible via SSL_get_verify_result() and cached as part of any resumed
6063 * Note: the permissive callback is for information gathering only, always
6064 * returns success, and does not affect verification status. Only the
6065 * strict callback or a custom application-specified callback can trigger
6066 * connection failure or record a verification error.
6069 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
6073 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
6075 switch (validation_mode
) {
6077 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6079 case SSL_CT_VALIDATION_PERMISSIVE
:
6080 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
6081 case SSL_CT_VALIDATION_STRICT
:
6082 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
6086 int SSL_enable_ct(SSL
*s
, int validation_mode
)
6088 switch (validation_mode
) {
6090 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
6092 case SSL_CT_VALIDATION_PERMISSIVE
:
6093 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
6094 case SSL_CT_VALIDATION_STRICT
:
6095 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
6099 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
6101 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
6104 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
6106 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
6109 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
6111 CTLOG_STORE_free(ctx
->ctlog_store
);
6112 ctx
->ctlog_store
= logs
;
6115 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
6117 return ctx
->ctlog_store
;
6120 #endif /* OPENSSL_NO_CT */
6122 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
6125 c
->client_hello_cb
= cb
;
6126 c
->client_hello_cb_arg
= arg
;
6129 int SSL_client_hello_isv2(SSL
*s
)
6131 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6136 if (sc
->clienthello
== NULL
)
6138 return sc
->clienthello
->isv2
;
6141 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
6143 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6148 if (sc
->clienthello
== NULL
)
6150 return sc
->clienthello
->legacy_version
;
6153 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
6155 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6160 if (sc
->clienthello
== NULL
)
6163 *out
= sc
->clienthello
->random
;
6164 return SSL3_RANDOM_SIZE
;
6167 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
6169 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6174 if (sc
->clienthello
== NULL
)
6177 *out
= sc
->clienthello
->session_id
;
6178 return sc
->clienthello
->session_id_len
;
6181 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
6183 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6188 if (sc
->clienthello
== NULL
)
6191 *out
= PACKET_data(&sc
->clienthello
->ciphersuites
);
6192 return PACKET_remaining(&sc
->clienthello
->ciphersuites
);
6195 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
6197 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6202 if (sc
->clienthello
== NULL
)
6205 *out
= sc
->clienthello
->compressions
;
6206 return sc
->clienthello
->compressions_len
;
6209 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
6214 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6219 if (sc
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
6221 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6222 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6231 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
6232 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
6235 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6236 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6238 if (ext
->received_order
>= num
)
6240 present
[ext
->received_order
] = ext
->type
;
6247 OPENSSL_free(present
);
6251 int SSL_client_hello_get_extension_order(SSL
*s
, uint16_t *exts
, size_t *num_exts
)
6255 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6260 if (sc
->clienthello
== NULL
|| num_exts
== NULL
)
6262 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6263 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6275 if (*num_exts
< num
)
6277 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; i
++) {
6278 ext
= sc
->clienthello
->pre_proc_exts
+ i
;
6280 if (ext
->received_order
>= num
)
6282 exts
[ext
->received_order
] = ext
->type
;
6289 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
6294 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6299 if (sc
->clienthello
== NULL
)
6301 for (i
= 0; i
< sc
->clienthello
->pre_proc_exts_len
; ++i
) {
6302 r
= sc
->clienthello
->pre_proc_exts
+ i
;
6303 if (r
->present
&& r
->type
== type
) {
6305 *out
= PACKET_data(&r
->data
);
6307 *outlen
= PACKET_remaining(&r
->data
);
6314 int SSL_free_buffers(SSL
*ssl
)
6317 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6324 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
6327 RECORD_LAYER_release(rl
);
6331 int SSL_alloc_buffers(SSL
*ssl
)
6333 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6338 return ssl3_setup_buffers(sc
);
6341 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
6343 ctx
->keylog_callback
= cb
;
6346 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
6348 return ctx
->keylog_callback
;
6351 static int nss_keylog_int(const char *prefix
,
6353 const uint8_t *parameter_1
,
6354 size_t parameter_1_len
,
6355 const uint8_t *parameter_2
,
6356 size_t parameter_2_len
)
6359 char *cursor
= NULL
;
6363 SSL_CTX
*sctx
= SSL_CONNECTION_GET_CTX(sc
);
6365 if (sctx
->keylog_callback
== NULL
)
6369 * Our output buffer will contain the following strings, rendered with
6370 * space characters in between, terminated by a NULL character: first the
6371 * prefix, then the first parameter, then the second parameter. The
6372 * meaning of each parameter depends on the specific key material being
6373 * logged. Note that the first and second parameters are encoded in
6374 * hexadecimal, so we need a buffer that is twice their lengths.
6376 prefix_len
= strlen(prefix
);
6377 out_len
= prefix_len
+ (2 * parameter_1_len
) + (2 * parameter_2_len
) + 3;
6378 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
6379 SSLfatal(sc
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
6383 strcpy(cursor
, prefix
);
6384 cursor
+= prefix_len
;
6387 for (i
= 0; i
< parameter_1_len
; i
++) {
6388 sprintf(cursor
, "%02x", parameter_1
[i
]);
6393 for (i
= 0; i
< parameter_2_len
; i
++) {
6394 sprintf(cursor
, "%02x", parameter_2
[i
]);
6399 sctx
->keylog_callback(SSL_CONNECTION_GET_SSL(sc
), (const char *)out
);
6400 OPENSSL_clear_free(out
, out_len
);
6405 int ssl_log_rsa_client_key_exchange(SSL_CONNECTION
*sc
,
6406 const uint8_t *encrypted_premaster
,
6407 size_t encrypted_premaster_len
,
6408 const uint8_t *premaster
,
6409 size_t premaster_len
)
6411 if (encrypted_premaster_len
< 8) {
6412 SSLfatal(sc
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6416 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
6417 return nss_keylog_int("RSA",
6419 encrypted_premaster
,
6425 int ssl_log_secret(SSL_CONNECTION
*sc
,
6427 const uint8_t *secret
,
6430 return nss_keylog_int(label
,
6432 sc
->s3
.client_random
,
6438 #define SSLV2_CIPHER_LEN 3
6440 int ssl_cache_cipherlist(SSL_CONNECTION
*s
, PACKET
*cipher_suites
, int sslv2format
)
6444 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6446 if (PACKET_remaining(cipher_suites
) == 0) {
6447 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6451 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6452 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6456 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6457 s
->s3
.tmp
.ciphers_raw
= NULL
;
6458 s
->s3
.tmp
.ciphers_rawlen
= 0;
6461 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
6462 PACKET sslv2ciphers
= *cipher_suites
;
6463 unsigned int leadbyte
;
6467 * We store the raw ciphers list in SSLv3+ format so we need to do some
6468 * preprocessing to convert the list first. If there are any SSLv2 only
6469 * ciphersuites with a non-zero leading byte then we are going to
6470 * slightly over allocate because we won't store those. But that isn't a
6473 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
6474 s
->s3
.tmp
.ciphers_raw
= raw
;
6476 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
6479 for (s
->s3
.tmp
.ciphers_rawlen
= 0;
6480 PACKET_remaining(&sslv2ciphers
) > 0;
6481 raw
+= TLS_CIPHER_LEN
) {
6482 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
6484 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
6487 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
6488 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_PACKET
);
6489 OPENSSL_free(s
->s3
.tmp
.ciphers_raw
);
6490 s
->s3
.tmp
.ciphers_raw
= NULL
;
6491 s
->s3
.tmp
.ciphers_rawlen
= 0;
6495 s
->s3
.tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
6497 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
.tmp
.ciphers_raw
,
6498 &s
->s3
.tmp
.ciphers_rawlen
)) {
6499 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_INTERNAL_ERROR
);
6505 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
6506 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
6507 STACK_OF(SSL_CIPHER
) **scsvs
)
6510 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6515 if (!PACKET_buf_init(&pkt
, bytes
, len
))
6517 return ossl_bytes_to_cipher_list(sc
, &pkt
, sk
, scsvs
, isv2format
, 0);
6520 int ossl_bytes_to_cipher_list(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
6521 STACK_OF(SSL_CIPHER
) **skp
,
6522 STACK_OF(SSL_CIPHER
) **scsvs_out
,
6523 int sslv2format
, int fatal
)
6525 const SSL_CIPHER
*c
;
6526 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
6527 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
6529 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
6530 unsigned char cipher
[SSLV2_CIPHER_LEN
];
6532 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
6534 if (PACKET_remaining(cipher_suites
) == 0) {
6536 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_R_NO_CIPHERS_SPECIFIED
);
6538 ERR_raise(ERR_LIB_SSL
, SSL_R_NO_CIPHERS_SPECIFIED
);
6542 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
6544 SSLfatal(s
, SSL_AD_DECODE_ERROR
,
6545 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6547 ERR_raise(ERR_LIB_SSL
, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
6551 sk
= sk_SSL_CIPHER_new_null();
6552 scsvs
= sk_SSL_CIPHER_new_null();
6553 if (sk
== NULL
|| scsvs
== NULL
) {
6555 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
6557 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
6561 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
6563 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
6564 * first byte set to zero, while true SSLv2 ciphers have a non-zero
6565 * first byte. We don't support any true SSLv2 ciphers, so skip them.
6567 if (sslv2format
&& cipher
[0] != '\0')
6570 /* For SSLv2-compat, ignore leading 0-byte. */
6571 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
6573 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
6574 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
6576 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, ERR_R_MALLOC_FAILURE
);
6578 ERR_raise(ERR_LIB_SSL
, ERR_R_MALLOC_FAILURE
);
6583 if (PACKET_remaining(cipher_suites
) > 0) {
6585 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_R_BAD_LENGTH
);
6587 ERR_raise(ERR_LIB_SSL
, SSL_R_BAD_LENGTH
);
6594 sk_SSL_CIPHER_free(sk
);
6595 if (scsvs_out
!= NULL
)
6598 sk_SSL_CIPHER_free(scsvs
);
6601 sk_SSL_CIPHER_free(sk
);
6602 sk_SSL_CIPHER_free(scsvs
);
6606 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
6608 ctx
->max_early_data
= max_early_data
;
6613 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
6615 return ctx
->max_early_data
;
6618 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
6620 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6625 sc
->max_early_data
= max_early_data
;
6630 uint32_t SSL_get_max_early_data(const SSL
*s
)
6632 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6637 return sc
->max_early_data
;
6640 int SSL_CTX_set_recv_max_early_data(SSL_CTX
*ctx
, uint32_t recv_max_early_data
)
6642 ctx
->recv_max_early_data
= recv_max_early_data
;
6647 uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX
*ctx
)
6649 return ctx
->recv_max_early_data
;
6652 int SSL_set_recv_max_early_data(SSL
*s
, uint32_t recv_max_early_data
)
6654 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6659 sc
->recv_max_early_data
= recv_max_early_data
;
6664 uint32_t SSL_get_recv_max_early_data(const SSL
*s
)
6666 const SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_CONST_SSL(s
);
6671 return sc
->recv_max_early_data
;
6674 __owur
unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION
*sc
)
6676 /* Return any active Max Fragment Len extension */
6677 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
))
6678 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6680 /* return current SSL connection setting */
6681 return sc
->max_send_fragment
;
6684 __owur
unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION
*sc
)
6686 /* Return a value regarding an active Max Fragment Len extension */
6687 if (sc
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(sc
->session
)
6688 && sc
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(sc
->session
))
6689 return GET_MAX_FRAGMENT_LENGTH(sc
->session
);
6691 /* else limit |split_send_fragment| to current |max_send_fragment| */
6692 if (sc
->split_send_fragment
> sc
->max_send_fragment
)
6693 return sc
->max_send_fragment
;
6695 /* return current SSL connection setting */
6696 return sc
->split_send_fragment
;
6699 int SSL_stateless(SSL
*s
)
6702 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6704 /* TODO(QUIC): This will need further work. */
6708 /* Ensure there is no state left over from a previous invocation */
6714 sc
->s3
.flags
|= TLS1_FLAGS_STATELESS
;
6715 ret
= SSL_accept(s
);
6716 sc
->s3
.flags
&= ~TLS1_FLAGS_STATELESS
;
6718 if (ret
> 0 && sc
->ext
.cookieok
)
6721 if (sc
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(sc
))
6727 void SSL_CTX_set_post_handshake_auth(SSL_CTX
*ctx
, int val
)
6729 ctx
->pha_enabled
= val
;
6732 void SSL_set_post_handshake_auth(SSL
*ssl
, int val
)
6734 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6739 sc
->pha_enabled
= val
;
6742 int SSL_verify_client_post_handshake(SSL
*ssl
)
6744 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(ssl
);
6749 if (!SSL_CONNECTION_IS_TLS13(sc
)) {
6750 ERR_raise(ERR_LIB_SSL
, SSL_R_WRONG_SSL_VERSION
);
6754 ERR_raise(ERR_LIB_SSL
, SSL_R_NOT_SERVER
);
6758 if (!SSL_is_init_finished(ssl
)) {
6759 ERR_raise(ERR_LIB_SSL
, SSL_R_STILL_IN_INIT
);
6763 switch (sc
->post_handshake_auth
) {
6765 ERR_raise(ERR_LIB_SSL
, SSL_R_EXTENSION_NOT_RECEIVED
);
6768 case SSL_PHA_EXT_SENT
:
6769 ERR_raise(ERR_LIB_SSL
, ERR_R_INTERNAL_ERROR
);
6771 case SSL_PHA_EXT_RECEIVED
:
6773 case SSL_PHA_REQUEST_PENDING
:
6774 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_PENDING
);
6776 case SSL_PHA_REQUESTED
:
6777 ERR_raise(ERR_LIB_SSL
, SSL_R_REQUEST_SENT
);
6781 sc
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
6783 /* checks verify_mode and algorithm_auth */
6784 if (!send_certificate_request(sc
)) {
6785 sc
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
6786 ERR_raise(ERR_LIB_SSL
, SSL_R_INVALID_CONFIG
);
6790 ossl_statem_set_in_init(sc
, 1);
6794 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
6795 SSL_CTX_generate_session_ticket_fn gen_cb
,
6796 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
6799 ctx
->generate_ticket_cb
= gen_cb
;
6800 ctx
->decrypt_ticket_cb
= dec_cb
;
6801 ctx
->ticket_cb_data
= arg
;
6805 void SSL_CTX_set_allow_early_data_cb(SSL_CTX
*ctx
,
6806 SSL_allow_early_data_cb_fn cb
,
6809 ctx
->allow_early_data_cb
= cb
;
6810 ctx
->allow_early_data_cb_data
= arg
;
6813 void SSL_set_allow_early_data_cb(SSL
*s
,
6814 SSL_allow_early_data_cb_fn cb
,
6817 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6822 sc
->allow_early_data_cb
= cb
;
6823 sc
->allow_early_data_cb_data
= arg
;
6826 const EVP_CIPHER
*ssl_evp_cipher_fetch(OSSL_LIB_CTX
*libctx
,
6828 const char *properties
)
6830 const EVP_CIPHER
*ciph
;
6832 ciph
= tls_get_cipher_from_engine(nid
);
6837 * If there is no engine cipher then we do an explicit fetch. This may fail
6838 * and that could be ok
6841 ciph
= EVP_CIPHER_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
6847 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
)
6849 /* Don't up-ref an implicit EVP_CIPHER */
6850 if (EVP_CIPHER_get0_provider(cipher
) == NULL
)
6854 * The cipher was explicitly fetched and therefore it is safe to cast
6857 return EVP_CIPHER_up_ref((EVP_CIPHER
*)cipher
);
6860 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
)
6865 if (EVP_CIPHER_get0_provider(cipher
) != NULL
) {
6867 * The cipher was explicitly fetched and therefore it is safe to cast
6870 EVP_CIPHER_free((EVP_CIPHER
*)cipher
);
6874 const EVP_MD
*ssl_evp_md_fetch(OSSL_LIB_CTX
*libctx
,
6876 const char *properties
)
6880 md
= tls_get_digest_from_engine(nid
);
6884 /* Otherwise we do an explicit fetch */
6886 md
= EVP_MD_fetch(libctx
, OBJ_nid2sn(nid
), properties
);
6891 int ssl_evp_md_up_ref(const EVP_MD
*md
)
6893 /* Don't up-ref an implicit EVP_MD */
6894 if (EVP_MD_get0_provider(md
) == NULL
)
6898 * The digest was explicitly fetched and therefore it is safe to cast
6901 return EVP_MD_up_ref((EVP_MD
*)md
);
6904 void ssl_evp_md_free(const EVP_MD
*md
)
6909 if (EVP_MD_get0_provider(md
) != NULL
) {
6911 * The digest was explicitly fetched and therefore it is safe to cast
6914 EVP_MD_free((EVP_MD
*)md
);
6918 int SSL_set0_tmp_dh_pkey(SSL
*s
, EVP_PKEY
*dhpkey
)
6920 SSL_CONNECTION
*sc
= SSL_CONNECTION_FROM_SSL(s
);
6925 if (!ssl_security(sc
, SSL_SECOP_TMP_DH
,
6926 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
6927 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
6930 EVP_PKEY_free(sc
->cert
->dh_tmp
);
6931 sc
->cert
->dh_tmp
= dhpkey
;
6935 int SSL_CTX_set0_tmp_dh_pkey(SSL_CTX
*ctx
, EVP_PKEY
*dhpkey
)
6937 if (!ssl_ctx_security(ctx
, SSL_SECOP_TMP_DH
,
6938 EVP_PKEY_get_security_bits(dhpkey
), 0, dhpkey
)) {
6939 ERR_raise(ERR_LIB_SSL
, SSL_R_DH_KEY_TOO_SMALL
);
6942 EVP_PKEY_free(ctx
->cert
->dh_tmp
);
6943 ctx
->cert
->dh_tmp
= dhpkey
;