2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the OpenSSL license (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
14 #include <openssl/objects.h>
15 #include <openssl/x509v3.h>
16 #include <openssl/rand.h>
17 #include <openssl/rand_drbg.h>
18 #include <openssl/ocsp.h>
19 #include <openssl/dh.h>
20 #include <openssl/engine.h>
21 #include <openssl/async.h>
22 #include <openssl/ct.h>
23 #include "internal/cryptlib.h"
24 #include "internal/refcount.h"
26 const char SSL_version_str
[] = OPENSSL_VERSION_TEXT
;
28 static int ssl_undefined_function_1(SSL
*ssl
, SSL3_RECORD
*r
, size_t s
, int t
)
33 return ssl_undefined_function(ssl
);
36 static int ssl_undefined_function_2(SSL
*ssl
, SSL3_RECORD
*r
, unsigned char *s
,
42 return ssl_undefined_function(ssl
);
45 static int ssl_undefined_function_3(SSL
*ssl
, unsigned char *r
,
46 unsigned char *s
, size_t t
, size_t *u
)
52 return ssl_undefined_function(ssl
);
55 static int ssl_undefined_function_4(SSL
*ssl
, int r
)
58 return ssl_undefined_function(ssl
);
61 static size_t ssl_undefined_function_5(SSL
*ssl
, const char *r
, size_t s
,
67 return ssl_undefined_function(ssl
);
70 static int ssl_undefined_function_6(int r
)
73 return ssl_undefined_function(NULL
);
76 static int ssl_undefined_function_7(SSL
*ssl
, unsigned char *r
, size_t s
,
77 const char *t
, size_t u
,
78 const unsigned char *v
, size_t w
, int x
)
87 return ssl_undefined_function(ssl
);
90 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
91 ssl_undefined_function_1
,
92 ssl_undefined_function_2
,
93 ssl_undefined_function
,
94 ssl_undefined_function_3
,
95 ssl_undefined_function_4
,
96 ssl_undefined_function_5
,
97 NULL
, /* client_finished_label */
98 0, /* client_finished_label_len */
99 NULL
, /* server_finished_label */
100 0, /* server_finished_label_len */
101 ssl_undefined_function_6
,
102 ssl_undefined_function_7
,
105 struct ssl_async_args
{
109 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
111 int (*func_read
) (SSL
*, void *, size_t, size_t *);
112 int (*func_write
) (SSL
*, const void *, size_t, size_t *);
113 int (*func_other
) (SSL
*);
117 static const struct {
123 DANETLS_MATCHING_FULL
, 0, NID_undef
126 DANETLS_MATCHING_2256
, 1, NID_sha256
129 DANETLS_MATCHING_2512
, 2, NID_sha512
133 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
135 const EVP_MD
**mdevp
;
137 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
138 int n
= ((int)mdmax
) + 1; /* int to handle PrivMatch(255) */
141 if (dctx
->mdevp
!= NULL
)
144 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
145 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
147 if (mdord
== NULL
|| mdevp
== NULL
) {
150 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
154 /* Install default entries */
155 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
158 if (dane_mds
[i
].nid
== NID_undef
||
159 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
161 mdevp
[dane_mds
[i
].mtype
] = md
;
162 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
172 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
174 OPENSSL_free(dctx
->mdevp
);
177 OPENSSL_free(dctx
->mdord
);
182 static void tlsa_free(danetls_record
*t
)
186 OPENSSL_free(t
->data
);
187 EVP_PKEY_free(t
->spki
);
191 static void dane_final(SSL_DANE
*dane
)
193 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
196 sk_X509_pop_free(dane
->certs
, X509_free
);
199 X509_free(dane
->mcert
);
207 * dane_copy - Copy dane configuration, sans verification state.
209 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
214 if (!DANETLS_ENABLED(&from
->dane
))
217 num
= sk_danetls_record_num(from
->dane
.trecs
);
218 dane_final(&to
->dane
);
219 to
->dane
.flags
= from
->dane
.flags
;
220 to
->dane
.dctx
= &to
->ctx
->dane
;
221 to
->dane
.trecs
= sk_danetls_record_new_reserve(NULL
, num
);
223 if (to
->dane
.trecs
== NULL
) {
224 SSLerr(SSL_F_SSL_DANE_DUP
, ERR_R_MALLOC_FAILURE
);
228 for (i
= 0; i
< num
; ++i
) {
229 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
231 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
232 t
->data
, t
->dlen
) <= 0)
238 static int dane_mtype_set(struct dane_ctx_st
*dctx
,
239 const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
243 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
244 SSLerr(SSL_F_DANE_MTYPE_SET
, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
248 if (mtype
> dctx
->mdmax
) {
249 const EVP_MD
**mdevp
;
251 int n
= ((int)mtype
) + 1;
253 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
255 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
260 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
262 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
267 /* Zero-fill any gaps */
268 for (i
= dctx
->mdmax
+ 1; i
< mtype
; ++i
) {
276 dctx
->mdevp
[mtype
] = md
;
277 /* Coerce ordinal of disabled matching types to 0 */
278 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
283 static const EVP_MD
*tlsa_md_get(SSL_DANE
*dane
, uint8_t mtype
)
285 if (mtype
> dane
->dctx
->mdmax
)
287 return dane
->dctx
->mdevp
[mtype
];
290 static int dane_tlsa_add(SSL_DANE
*dane
,
293 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
296 const EVP_MD
*md
= NULL
;
297 int ilen
= (int)dlen
;
301 if (dane
->trecs
== NULL
) {
302 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
306 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
307 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
311 if (usage
> DANETLS_USAGE_LAST
) {
312 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
316 if (selector
> DANETLS_SELECTOR_LAST
) {
317 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
321 if (mtype
!= DANETLS_MATCHING_FULL
) {
322 md
= tlsa_md_get(dane
, mtype
);
324 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
329 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
330 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
334 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
338 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
339 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
344 t
->selector
= selector
;
346 t
->data
= OPENSSL_malloc(dlen
);
347 if (t
->data
== NULL
) {
349 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
352 memcpy(t
->data
, data
, dlen
);
355 /* Validate and cache full certificate or public key */
356 if (mtype
== DANETLS_MATCHING_FULL
) {
357 const unsigned char *p
= data
;
359 EVP_PKEY
*pkey
= NULL
;
362 case DANETLS_SELECTOR_CERT
:
363 if (!d2i_X509(&cert
, &p
, ilen
) || p
< data
||
364 dlen
!= (size_t)(p
- data
)) {
366 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
369 if (X509_get0_pubkey(cert
) == NULL
) {
371 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
375 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
381 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
382 * records that contain full certificates of trust-anchors that are
383 * not present in the wire chain. For usage PKIX-TA(0), we augment
384 * the chain with untrusted Full(0) certificates from DNS, in case
385 * they are missing from the chain.
387 if ((dane
->certs
== NULL
&&
388 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
389 !sk_X509_push(dane
->certs
, cert
)) {
390 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
397 case DANETLS_SELECTOR_SPKI
:
398 if (!d2i_PUBKEY(&pkey
, &p
, ilen
) || p
< data
||
399 dlen
!= (size_t)(p
- data
)) {
401 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
406 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
407 * records that contain full bare keys of trust-anchors that are
408 * not present in the wire chain.
410 if (usage
== DANETLS_USAGE_DANE_TA
)
419 * Find the right insertion point for the new record.
421 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
422 * they can be processed first, as they require no chain building, and no
423 * expiration or hostname checks. Because DANE-EE(3) is numerically
424 * largest, this is accomplished via descending sort by "usage".
426 * We also sort in descending order by matching ordinal to simplify
427 * the implementation of digest agility in the verification code.
429 * The choice of order for the selector is not significant, so we
430 * use the same descending order for consistency.
432 num
= sk_danetls_record_num(dane
->trecs
);
433 for (i
= 0; i
< num
; ++i
) {
434 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
436 if (rec
->usage
> usage
)
438 if (rec
->usage
< usage
)
440 if (rec
->selector
> selector
)
442 if (rec
->selector
< selector
)
444 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
449 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
451 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
454 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
460 * Return 0 if there is only one version configured and it was disabled
461 * at configure time. Return 1 otherwise.
463 static int ssl_check_allowed_versions(int min_version
, int max_version
)
465 int minisdtls
= 0, maxisdtls
= 0;
467 /* Figure out if we're doing DTLS versions or TLS versions */
468 if (min_version
== DTLS1_BAD_VER
469 || min_version
>> 8 == DTLS1_VERSION_MAJOR
)
471 if (max_version
== DTLS1_BAD_VER
472 || max_version
>> 8 == DTLS1_VERSION_MAJOR
)
474 /* A wildcard version of 0 could be DTLS or TLS. */
475 if ((minisdtls
&& !maxisdtls
&& max_version
!= 0)
476 || (maxisdtls
&& !minisdtls
&& min_version
!= 0)) {
477 /* Mixing DTLS and TLS versions will lead to sadness; deny it. */
481 if (minisdtls
|| maxisdtls
) {
482 /* Do DTLS version checks. */
483 if (min_version
== 0)
484 /* Ignore DTLS1_BAD_VER */
485 min_version
= DTLS1_VERSION
;
486 if (max_version
== 0)
487 max_version
= DTLS1_2_VERSION
;
488 #ifdef OPENSSL_NO_DTLS1_2
489 if (max_version
== DTLS1_2_VERSION
)
490 max_version
= DTLS1_VERSION
;
492 #ifdef OPENSSL_NO_DTLS1
493 if (min_version
== DTLS1_VERSION
)
494 min_version
= DTLS1_2_VERSION
;
496 /* Done massaging versions; do the check. */
498 #ifdef OPENSSL_NO_DTLS1
499 || (DTLS_VERSION_GE(min_version
, DTLS1_VERSION
)
500 && DTLS_VERSION_GE(DTLS1_VERSION
, max_version
))
502 #ifdef OPENSSL_NO_DTLS1_2
503 || (DTLS_VERSION_GE(min_version
, DTLS1_2_VERSION
)
504 && DTLS_VERSION_GE(DTLS1_2_VERSION
, max_version
))
509 /* Regular TLS version checks. */
510 if (min_version
== 0)
511 min_version
= SSL3_VERSION
;
512 if (max_version
== 0)
513 max_version
= TLS1_3_VERSION
;
514 #ifdef OPENSSL_NO_TLS1_3
515 if (max_version
== TLS1_3_VERSION
)
516 max_version
= TLS1_2_VERSION
;
518 #ifdef OPENSSL_NO_TLS1_2
519 if (max_version
== TLS1_2_VERSION
)
520 max_version
= TLS1_1_VERSION
;
522 #ifdef OPENSSL_NO_TLS1_1
523 if (max_version
== TLS1_1_VERSION
)
524 max_version
= TLS1_VERSION
;
526 #ifdef OPENSSL_NO_TLS1
527 if (max_version
== TLS1_VERSION
)
528 max_version
= SSL3_VERSION
;
530 #ifdef OPENSSL_NO_SSL3
531 if (min_version
== SSL3_VERSION
)
532 min_version
= TLS1_VERSION
;
534 #ifdef OPENSSL_NO_TLS1
535 if (min_version
== TLS1_VERSION
)
536 min_version
= TLS1_1_VERSION
;
538 #ifdef OPENSSL_NO_TLS1_1
539 if (min_version
== TLS1_1_VERSION
)
540 min_version
= TLS1_2_VERSION
;
542 #ifdef OPENSSL_NO_TLS1_2
543 if (min_version
== TLS1_2_VERSION
)
544 min_version
= TLS1_3_VERSION
;
546 /* Done massaging versions; do the check. */
548 #ifdef OPENSSL_NO_SSL3
549 || (min_version
<= SSL3_VERSION
&& SSL3_VERSION
<= max_version
)
551 #ifdef OPENSSL_NO_TLS1
552 || (min_version
<= TLS1_VERSION
&& TLS1_VERSION
<= max_version
)
554 #ifdef OPENSSL_NO_TLS1_1
555 || (min_version
<= TLS1_1_VERSION
&& TLS1_1_VERSION
<= max_version
)
557 #ifdef OPENSSL_NO_TLS1_2
558 || (min_version
<= TLS1_2_VERSION
&& TLS1_2_VERSION
<= max_version
)
560 #ifdef OPENSSL_NO_TLS1_3
561 || (min_version
<= TLS1_3_VERSION
&& TLS1_3_VERSION
<= max_version
)
569 static void clear_ciphers(SSL
*s
)
571 /* clear the current cipher */
572 ssl_clear_cipher_ctx(s
);
573 ssl_clear_hash_ctx(&s
->read_hash
);
574 ssl_clear_hash_ctx(&s
->write_hash
);
577 int SSL_clear(SSL
*s
)
579 if (s
->method
== NULL
) {
580 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
584 if (ssl_clear_bad_session(s
)) {
585 SSL_SESSION_free(s
->session
);
588 SSL_SESSION_free(s
->psksession
);
589 s
->psksession
= NULL
;
590 OPENSSL_free(s
->psksession_id
);
591 s
->psksession_id
= NULL
;
592 s
->psksession_id_len
= 0;
593 s
->hello_retry_request
= 0;
599 if (s
->renegotiate
) {
600 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
604 ossl_statem_clear(s
);
606 s
->version
= s
->method
->version
;
607 s
->client_version
= s
->version
;
608 s
->rwstate
= SSL_NOTHING
;
610 BUF_MEM_free(s
->init_buf
);
615 s
->key_update
= SSL_KEY_UPDATE_NONE
;
617 EVP_MD_CTX_free(s
->pha_dgst
);
620 /* Reset DANE verification result state */
623 X509_free(s
->dane
.mcert
);
624 s
->dane
.mcert
= NULL
;
625 s
->dane
.mtlsa
= NULL
;
627 /* Clear the verification result peername */
628 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
631 * Check to see if we were changed into a different method, if so, revert
634 if (s
->method
!= s
->ctx
->method
) {
635 s
->method
->ssl_free(s
);
636 s
->method
= s
->ctx
->method
;
637 if (!s
->method
->ssl_new(s
))
640 if (!s
->method
->ssl_clear(s
))
644 RECORD_LAYER_clear(&s
->rlayer
);
649 /** Used to change an SSL_CTXs default SSL method type */
650 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
652 STACK_OF(SSL_CIPHER
) *sk
;
656 sk
= ssl_create_cipher_list(ctx
->method
,
657 ctx
->tls13_ciphersuites
,
659 &(ctx
->cipher_list_by_id
),
660 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
661 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
662 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
668 SSL
*SSL_new(SSL_CTX
*ctx
)
673 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
676 if (ctx
->method
== NULL
) {
677 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
681 s
= OPENSSL_zalloc(sizeof(*s
));
686 s
->lock
= CRYPTO_THREAD_lock_new();
687 if (s
->lock
== NULL
) {
693 RECORD_LAYER_init(&s
->rlayer
, s
);
695 s
->options
= ctx
->options
;
696 s
->dane
.flags
= ctx
->dane
.flags
;
697 s
->min_proto_version
= ctx
->min_proto_version
;
698 s
->max_proto_version
= ctx
->max_proto_version
;
700 s
->max_cert_list
= ctx
->max_cert_list
;
701 s
->max_early_data
= ctx
->max_early_data
;
703 /* Shallow copy of the ciphersuites stack */
704 s
->tls13_ciphersuites
= sk_SSL_CIPHER_dup(ctx
->tls13_ciphersuites
);
705 if (s
->tls13_ciphersuites
== NULL
)
709 * Earlier library versions used to copy the pointer to the CERT, not
710 * its contents; only when setting new parameters for the per-SSL
711 * copy, ssl_cert_new would be called (and the direct reference to
712 * the per-SSL_CTX settings would be lost, but those still were
713 * indirectly accessed for various purposes, and for that reason they
714 * used to be known as s->ctx->default_cert). Now we don't look at the
715 * SSL_CTX's CERT after having duplicated it once.
717 s
->cert
= ssl_cert_dup(ctx
->cert
);
721 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
722 s
->msg_callback
= ctx
->msg_callback
;
723 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
724 s
->verify_mode
= ctx
->verify_mode
;
725 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
726 s
->record_padding_cb
= ctx
->record_padding_cb
;
727 s
->record_padding_arg
= ctx
->record_padding_arg
;
728 s
->block_padding
= ctx
->block_padding
;
729 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
730 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
732 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
733 s
->verify_callback
= ctx
->default_verify_callback
;
734 s
->generate_session_id
= ctx
->generate_session_id
;
736 s
->param
= X509_VERIFY_PARAM_new();
737 if (s
->param
== NULL
)
739 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
740 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
742 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
743 s
->max_send_fragment
= ctx
->max_send_fragment
;
744 s
->split_send_fragment
= ctx
->split_send_fragment
;
745 s
->max_pipelines
= ctx
->max_pipelines
;
746 if (s
->max_pipelines
> 1)
747 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
748 if (ctx
->default_read_buf_len
> 0)
749 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
754 s
->ext
.debug_arg
= NULL
;
755 s
->ext
.ticket_expected
= 0;
756 s
->ext
.status_type
= ctx
->ext
.status_type
;
757 s
->ext
.status_expected
= 0;
758 s
->ext
.ocsp
.ids
= NULL
;
759 s
->ext
.ocsp
.exts
= NULL
;
760 s
->ext
.ocsp
.resp
= NULL
;
761 s
->ext
.ocsp
.resp_len
= 0;
763 s
->session_ctx
= ctx
;
764 #ifndef OPENSSL_NO_EC
765 if (ctx
->ext
.ecpointformats
) {
766 s
->ext
.ecpointformats
=
767 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
768 ctx
->ext
.ecpointformats_len
);
769 if (!s
->ext
.ecpointformats
)
771 s
->ext
.ecpointformats_len
=
772 ctx
->ext
.ecpointformats_len
;
774 if (ctx
->ext
.supportedgroups
) {
775 s
->ext
.supportedgroups
=
776 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
777 ctx
->ext
.supportedgroups_len
778 * sizeof(*ctx
->ext
.supportedgroups
));
779 if (!s
->ext
.supportedgroups
)
781 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
784 #ifndef OPENSSL_NO_NEXTPROTONEG
788 if (s
->ctx
->ext
.alpn
) {
789 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
790 if (s
->ext
.alpn
== NULL
)
792 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
793 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
796 s
->verified_chain
= NULL
;
797 s
->verify_result
= X509_V_OK
;
799 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
800 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
802 s
->method
= ctx
->method
;
804 s
->key_update
= SSL_KEY_UPDATE_NONE
;
806 if (!s
->method
->ssl_new(s
))
809 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
814 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
817 #ifndef OPENSSL_NO_PSK
818 s
->psk_client_callback
= ctx
->psk_client_callback
;
819 s
->psk_server_callback
= ctx
->psk_server_callback
;
821 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
822 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
826 #ifndef OPENSSL_NO_CT
827 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
828 ctx
->ct_validation_callback_arg
))
835 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
839 int SSL_is_dtls(const SSL
*s
)
841 return SSL_IS_DTLS(s
) ? 1 : 0;
844 int SSL_up_ref(SSL
*s
)
848 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
851 REF_PRINT_COUNT("SSL", s
);
852 REF_ASSERT_ISNT(i
< 2);
853 return ((i
> 1) ? 1 : 0);
856 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
857 unsigned int sid_ctx_len
)
859 if (sid_ctx_len
> sizeof(ctx
->sid_ctx
)) {
860 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
861 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
864 ctx
->sid_ctx_length
= sid_ctx_len
;
865 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
870 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
871 unsigned int sid_ctx_len
)
873 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
874 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
875 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
878 ssl
->sid_ctx_length
= sid_ctx_len
;
879 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
884 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
886 CRYPTO_THREAD_write_lock(ctx
->lock
);
887 ctx
->generate_session_id
= cb
;
888 CRYPTO_THREAD_unlock(ctx
->lock
);
892 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
894 CRYPTO_THREAD_write_lock(ssl
->lock
);
895 ssl
->generate_session_id
= cb
;
896 CRYPTO_THREAD_unlock(ssl
->lock
);
900 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
904 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
905 * we can "construct" a session to give us the desired check - i.e. to
906 * find if there's a session in the hash table that would conflict with
907 * any new session built out of this id/id_len and the ssl_version in use
912 if (id_len
> sizeof(r
.session_id
))
915 r
.ssl_version
= ssl
->version
;
916 r
.session_id_length
= id_len
;
917 memcpy(r
.session_id
, id
, id_len
);
919 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
920 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
921 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
925 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
927 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
930 int SSL_set_purpose(SSL
*s
, int purpose
)
932 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
935 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
937 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
940 int SSL_set_trust(SSL
*s
, int trust
)
942 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
945 int SSL_set1_host(SSL
*s
, const char *hostname
)
947 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
950 int SSL_add1_host(SSL
*s
, const char *hostname
)
952 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
955 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
957 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
960 const char *SSL_get0_peername(SSL
*s
)
962 return X509_VERIFY_PARAM_get0_peername(s
->param
);
965 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
967 return dane_ctx_enable(&ctx
->dane
);
970 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
972 unsigned long orig
= ctx
->dane
.flags
;
974 ctx
->dane
.flags
|= flags
;
978 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
980 unsigned long orig
= ctx
->dane
.flags
;
982 ctx
->dane
.flags
&= ~flags
;
986 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
988 SSL_DANE
*dane
= &s
->dane
;
990 if (s
->ctx
->dane
.mdmax
== 0) {
991 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
994 if (dane
->trecs
!= NULL
) {
995 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1000 * Default SNI name. This rejects empty names, while set1_host below
1001 * accepts them and disables host name checks. To avoid side-effects with
1002 * invalid input, set the SNI name first.
1004 if (s
->ext
.hostname
== NULL
) {
1005 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1006 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1011 /* Primary RFC6125 reference identifier */
1012 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1013 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1019 dane
->dctx
= &s
->ctx
->dane
;
1020 dane
->trecs
= sk_danetls_record_new_null();
1022 if (dane
->trecs
== NULL
) {
1023 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1029 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1031 unsigned long orig
= ssl
->dane
.flags
;
1033 ssl
->dane
.flags
|= flags
;
1037 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1039 unsigned long orig
= ssl
->dane
.flags
;
1041 ssl
->dane
.flags
&= ~flags
;
1045 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1047 SSL_DANE
*dane
= &s
->dane
;
1049 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1053 *mcert
= dane
->mcert
;
1055 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1060 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1061 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1063 SSL_DANE
*dane
= &s
->dane
;
1065 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1069 *usage
= dane
->mtlsa
->usage
;
1071 *selector
= dane
->mtlsa
->selector
;
1073 *mtype
= dane
->mtlsa
->mtype
;
1075 *data
= dane
->mtlsa
->data
;
1077 *dlen
= dane
->mtlsa
->dlen
;
1082 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1087 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1088 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1090 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1093 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1096 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1099 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1101 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1104 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1106 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1109 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1114 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1119 void SSL_certs_clear(SSL
*s
)
1121 ssl_cert_clear_certs(s
->cert
);
1124 void SSL_free(SSL
*s
)
1130 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1131 REF_PRINT_COUNT("SSL", s
);
1134 REF_ASSERT_ISNT(i
< 0);
1136 X509_VERIFY_PARAM_free(s
->param
);
1137 dane_final(&s
->dane
);
1138 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1140 /* Ignore return value */
1141 ssl_free_wbio_buffer(s
);
1143 BIO_free_all(s
->wbio
);
1144 BIO_free_all(s
->rbio
);
1146 BUF_MEM_free(s
->init_buf
);
1148 /* add extra stuff */
1149 sk_SSL_CIPHER_free(s
->cipher_list
);
1150 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1151 sk_SSL_CIPHER_free(s
->tls13_ciphersuites
);
1153 /* Make the next call work :-) */
1154 if (s
->session
!= NULL
) {
1155 ssl_clear_bad_session(s
);
1156 SSL_SESSION_free(s
->session
);
1158 SSL_SESSION_free(s
->psksession
);
1159 OPENSSL_free(s
->psksession_id
);
1163 ssl_cert_free(s
->cert
);
1164 /* Free up if allocated */
1166 OPENSSL_free(s
->ext
.hostname
);
1167 SSL_CTX_free(s
->session_ctx
);
1168 #ifndef OPENSSL_NO_EC
1169 OPENSSL_free(s
->ext
.ecpointformats
);
1170 OPENSSL_free(s
->ext
.supportedgroups
);
1171 #endif /* OPENSSL_NO_EC */
1172 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1173 #ifndef OPENSSL_NO_OCSP
1174 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1176 #ifndef OPENSSL_NO_CT
1177 SCT_LIST_free(s
->scts
);
1178 OPENSSL_free(s
->ext
.scts
);
1180 OPENSSL_free(s
->ext
.ocsp
.resp
);
1181 OPENSSL_free(s
->ext
.alpn
);
1182 OPENSSL_free(s
->ext
.tls13_cookie
);
1183 OPENSSL_free(s
->clienthello
);
1184 OPENSSL_free(s
->pha_context
);
1185 EVP_MD_CTX_free(s
->pha_dgst
);
1187 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1189 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1191 if (s
->method
!= NULL
)
1192 s
->method
->ssl_free(s
);
1194 RECORD_LAYER_release(&s
->rlayer
);
1196 SSL_CTX_free(s
->ctx
);
1198 ASYNC_WAIT_CTX_free(s
->waitctx
);
1200 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1201 OPENSSL_free(s
->ext
.npn
);
1204 #ifndef OPENSSL_NO_SRTP
1205 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1208 CRYPTO_THREAD_lock_free(s
->lock
);
1213 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1215 BIO_free_all(s
->rbio
);
1219 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1222 * If the output buffering BIO is still in place, remove it
1224 if (s
->bbio
!= NULL
)
1225 s
->wbio
= BIO_pop(s
->wbio
);
1227 BIO_free_all(s
->wbio
);
1230 /* Re-attach |bbio| to the new |wbio|. */
1231 if (s
->bbio
!= NULL
)
1232 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1235 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1238 * For historical reasons, this function has many different cases in
1239 * ownership handling.
1242 /* If nothing has changed, do nothing */
1243 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1247 * If the two arguments are equal then one fewer reference is granted by the
1248 * caller than we want to take
1250 if (rbio
!= NULL
&& rbio
== wbio
)
1254 * If only the wbio is changed only adopt one reference.
1256 if (rbio
== SSL_get_rbio(s
)) {
1257 SSL_set0_wbio(s
, wbio
);
1261 * There is an asymmetry here for historical reasons. If only the rbio is
1262 * changed AND the rbio and wbio were originally different, then we only
1263 * adopt one reference.
1265 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1266 SSL_set0_rbio(s
, rbio
);
1270 /* Otherwise, adopt both references. */
1271 SSL_set0_rbio(s
, rbio
);
1272 SSL_set0_wbio(s
, wbio
);
1275 BIO
*SSL_get_rbio(const SSL
*s
)
1280 BIO
*SSL_get_wbio(const SSL
*s
)
1282 if (s
->bbio
!= NULL
) {
1284 * If |bbio| is active, the true caller-configured BIO is its
1287 return BIO_next(s
->bbio
);
1292 int SSL_get_fd(const SSL
*s
)
1294 return SSL_get_rfd(s
);
1297 int SSL_get_rfd(const SSL
*s
)
1302 b
= SSL_get_rbio(s
);
1303 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1305 BIO_get_fd(r
, &ret
);
1309 int SSL_get_wfd(const SSL
*s
)
1314 b
= SSL_get_wbio(s
);
1315 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1317 BIO_get_fd(r
, &ret
);
1321 #ifndef OPENSSL_NO_SOCK
1322 int SSL_set_fd(SSL
*s
, int fd
)
1327 bio
= BIO_new(BIO_s_socket());
1330 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1333 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1334 SSL_set_bio(s
, bio
, bio
);
1340 int SSL_set_wfd(SSL
*s
, int fd
)
1342 BIO
*rbio
= SSL_get_rbio(s
);
1344 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1345 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1346 BIO
*bio
= BIO_new(BIO_s_socket());
1349 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1352 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1353 SSL_set0_wbio(s
, bio
);
1356 SSL_set0_wbio(s
, rbio
);
1361 int SSL_set_rfd(SSL
*s
, int fd
)
1363 BIO
*wbio
= SSL_get_wbio(s
);
1365 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1366 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1367 BIO
*bio
= BIO_new(BIO_s_socket());
1370 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1373 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1374 SSL_set0_rbio(s
, bio
);
1377 SSL_set0_rbio(s
, wbio
);
1384 /* return length of latest Finished message we sent, copy to 'buf' */
1385 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1389 if (s
->s3
!= NULL
) {
1390 ret
= s
->s3
->tmp
.finish_md_len
;
1393 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1398 /* return length of latest Finished message we expected, copy to 'buf' */
1399 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1403 if (s
->s3
!= NULL
) {
1404 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1407 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1412 int SSL_get_verify_mode(const SSL
*s
)
1414 return s
->verify_mode
;
1417 int SSL_get_verify_depth(const SSL
*s
)
1419 return X509_VERIFY_PARAM_get_depth(s
->param
);
1422 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1423 return s
->verify_callback
;
1426 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1428 return ctx
->verify_mode
;
1431 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1433 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1436 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1437 return ctx
->default_verify_callback
;
1440 void SSL_set_verify(SSL
*s
, int mode
,
1441 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1443 s
->verify_mode
= mode
;
1444 if (callback
!= NULL
)
1445 s
->verify_callback
= callback
;
1448 void SSL_set_verify_depth(SSL
*s
, int depth
)
1450 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1453 void SSL_set_read_ahead(SSL
*s
, int yes
)
1455 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1458 int SSL_get_read_ahead(const SSL
*s
)
1460 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1463 int SSL_pending(const SSL
*s
)
1465 size_t pending
= s
->method
->ssl_pending(s
);
1468 * SSL_pending cannot work properly if read-ahead is enabled
1469 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1470 * impossible to fix since SSL_pending cannot report errors that may be
1471 * observed while scanning the new data. (Note that SSL_pending() is
1472 * often used as a boolean value, so we'd better not return -1.)
1474 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1475 * we just return INT_MAX.
1477 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1480 int SSL_has_pending(const SSL
*s
)
1483 * Similar to SSL_pending() but returns a 1 to indicate that we have
1484 * unprocessed data available or 0 otherwise (as opposed to the number of
1485 * bytes available). Unlike SSL_pending() this will take into account
1486 * read_ahead data. A 1 return simply indicates that we have unprocessed
1487 * data. That data may not result in any application data, or we may fail
1488 * to parse the records for some reason.
1490 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1493 return RECORD_LAYER_read_pending(&s
->rlayer
);
1496 X509
*SSL_get_peer_certificate(const SSL
*s
)
1500 if ((s
== NULL
) || (s
->session
== NULL
))
1503 r
= s
->session
->peer
;
1513 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1517 if ((s
== NULL
) || (s
->session
== NULL
))
1520 r
= s
->session
->peer_chain
;
1523 * If we are a client, cert_chain includes the peer's own certificate; if
1524 * we are a server, it does not.
1531 * Now in theory, since the calling process own 't' it should be safe to
1532 * modify. We need to be able to read f without being hassled
1534 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1537 /* Do we need to to SSL locking? */
1538 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1543 * what if we are setup for one protocol version but want to talk another
1545 if (t
->method
!= f
->method
) {
1546 t
->method
->ssl_free(t
);
1547 t
->method
= f
->method
;
1548 if (t
->method
->ssl_new(t
) == 0)
1552 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1553 ssl_cert_free(t
->cert
);
1555 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1562 /* Fix this so it checks all the valid key/cert options */
1563 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1565 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1566 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1569 if (ctx
->cert
->key
->privatekey
== NULL
) {
1570 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1573 return X509_check_private_key
1574 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1577 /* Fix this function so that it takes an optional type parameter */
1578 int SSL_check_private_key(const SSL
*ssl
)
1581 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1584 if (ssl
->cert
->key
->x509
== NULL
) {
1585 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1588 if (ssl
->cert
->key
->privatekey
== NULL
) {
1589 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1592 return X509_check_private_key(ssl
->cert
->key
->x509
,
1593 ssl
->cert
->key
->privatekey
);
1596 int SSL_waiting_for_async(SSL
*s
)
1604 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1606 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1610 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1613 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1614 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1616 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1620 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1624 int SSL_accept(SSL
*s
)
1626 if (s
->handshake_func
== NULL
) {
1627 /* Not properly initialized yet */
1628 SSL_set_accept_state(s
);
1631 return SSL_do_handshake(s
);
1634 int SSL_connect(SSL
*s
)
1636 if (s
->handshake_func
== NULL
) {
1637 /* Not properly initialized yet */
1638 SSL_set_connect_state(s
);
1641 return SSL_do_handshake(s
);
1644 long SSL_get_default_timeout(const SSL
*s
)
1646 return s
->method
->get_timeout();
1649 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1650 int (*func
) (void *))
1653 if (s
->waitctx
== NULL
) {
1654 s
->waitctx
= ASYNC_WAIT_CTX_new();
1655 if (s
->waitctx
== NULL
)
1658 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1659 sizeof(struct ssl_async_args
))) {
1661 s
->rwstate
= SSL_NOTHING
;
1662 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1665 s
->rwstate
= SSL_ASYNC_PAUSED
;
1668 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1674 s
->rwstate
= SSL_NOTHING
;
1675 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1676 /* Shouldn't happen */
1681 static int ssl_io_intern(void *vargs
)
1683 struct ssl_async_args
*args
;
1688 args
= (struct ssl_async_args
*)vargs
;
1692 switch (args
->type
) {
1694 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1696 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1698 return args
->f
.func_other(s
);
1703 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1705 if (s
->handshake_func
== NULL
) {
1706 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1710 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1711 s
->rwstate
= SSL_NOTHING
;
1715 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1716 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1717 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1721 * If we are a client and haven't received the ServerHello etc then we
1724 ossl_statem_check_finish_init(s
, 0);
1726 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1727 struct ssl_async_args args
;
1733 args
.type
= READFUNC
;
1734 args
.f
.func_read
= s
->method
->ssl_read
;
1736 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1737 *readbytes
= s
->asyncrw
;
1740 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1744 int SSL_read(SSL
*s
, void *buf
, int num
)
1750 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1754 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1757 * The cast is safe here because ret should be <= INT_MAX because num is
1761 ret
= (int)readbytes
;
1766 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1768 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1775 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1780 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1781 return SSL_READ_EARLY_DATA_ERROR
;
1784 switch (s
->early_data_state
) {
1785 case SSL_EARLY_DATA_NONE
:
1786 if (!SSL_in_before(s
)) {
1787 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1788 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1789 return SSL_READ_EARLY_DATA_ERROR
;
1793 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1794 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1795 ret
= SSL_accept(s
);
1798 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1799 return SSL_READ_EARLY_DATA_ERROR
;
1803 case SSL_EARLY_DATA_READ_RETRY
:
1804 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1805 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1806 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1808 * State machine will update early_data_state to
1809 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1812 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1813 != SSL_EARLY_DATA_FINISHED_READING
)) {
1814 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1815 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1816 : SSL_READ_EARLY_DATA_ERROR
;
1819 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1822 return SSL_READ_EARLY_DATA_FINISH
;
1825 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1826 return SSL_READ_EARLY_DATA_ERROR
;
1830 int SSL_get_early_data_status(const SSL
*s
)
1832 return s
->ext
.early_data
;
1835 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1837 if (s
->handshake_func
== NULL
) {
1838 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1842 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1845 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1846 struct ssl_async_args args
;
1852 args
.type
= READFUNC
;
1853 args
.f
.func_read
= s
->method
->ssl_peek
;
1855 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1856 *readbytes
= s
->asyncrw
;
1859 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1863 int SSL_peek(SSL
*s
, void *buf
, int num
)
1869 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1873 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1876 * The cast is safe here because ret should be <= INT_MAX because num is
1880 ret
= (int)readbytes
;
1886 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1888 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1895 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1897 if (s
->handshake_func
== NULL
) {
1898 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1902 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1903 s
->rwstate
= SSL_NOTHING
;
1904 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1908 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1909 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1910 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1911 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1914 /* If we are a client and haven't sent the Finished we better do that */
1915 ossl_statem_check_finish_init(s
, 1);
1917 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1919 struct ssl_async_args args
;
1922 args
.buf
= (void *)buf
;
1924 args
.type
= WRITEFUNC
;
1925 args
.f
.func_write
= s
->method
->ssl_write
;
1927 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1928 *written
= s
->asyncrw
;
1931 return s
->method
->ssl_write(s
, buf
, num
, written
);
1935 int SSL_write(SSL
*s
, const void *buf
, int num
)
1941 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1945 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1948 * The cast is safe here because ret should be <= INT_MAX because num is
1957 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1959 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1966 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1968 int ret
, early_data_state
;
1970 uint32_t partialwrite
;
1972 switch (s
->early_data_state
) {
1973 case SSL_EARLY_DATA_NONE
:
1975 || !SSL_in_before(s
)
1976 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
1977 && (s
->psk_use_session_cb
== NULL
))) {
1978 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1979 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1984 case SSL_EARLY_DATA_CONNECT_RETRY
:
1985 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1986 ret
= SSL_connect(s
);
1989 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
1994 case SSL_EARLY_DATA_WRITE_RETRY
:
1995 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
1997 * We disable partial write for early data because we don't keep track
1998 * of how many bytes we've written between the SSL_write_ex() call and
1999 * the flush if the flush needs to be retried)
2001 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2002 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2003 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2004 s
->mode
|= partialwrite
;
2006 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2009 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2012 case SSL_EARLY_DATA_WRITE_FLUSH
:
2013 /* The buffering BIO is still in place so we need to flush it */
2014 if (statem_flush(s
) != 1)
2017 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2020 case SSL_EARLY_DATA_FINISHED_READING
:
2021 case SSL_EARLY_DATA_READ_RETRY
:
2022 early_data_state
= s
->early_data_state
;
2023 /* We are a server writing to an unauthenticated client */
2024 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2025 ret
= SSL_write_ex(s
, buf
, num
, written
);
2026 s
->early_data_state
= early_data_state
;
2030 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2035 int SSL_shutdown(SSL
*s
)
2038 * Note that this function behaves differently from what one might
2039 * expect. Return values are 0 for no success (yet), 1 for success; but
2040 * calling it once is usually not enough, even if blocking I/O is used
2041 * (see ssl3_shutdown).
2044 if (s
->handshake_func
== NULL
) {
2045 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2049 if (!SSL_in_init(s
)) {
2050 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2051 struct ssl_async_args args
;
2054 args
.type
= OTHERFUNC
;
2055 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2057 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2059 return s
->method
->ssl_shutdown(s
);
2062 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2067 int SSL_key_update(SSL
*s
, int updatetype
)
2070 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2071 * negotiated, and that it is appropriate to call SSL_key_update() instead
2072 * of SSL_renegotiate().
2074 if (!SSL_IS_TLS13(s
)) {
2075 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2079 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2080 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2081 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2085 if (!SSL_is_init_finished(s
)) {
2086 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2090 ossl_statem_set_in_init(s
, 1);
2091 s
->key_update
= updatetype
;
2095 int SSL_get_key_update_type(SSL
*s
)
2097 return s
->key_update
;
2100 int SSL_renegotiate(SSL
*s
)
2102 if (SSL_IS_TLS13(s
)) {
2103 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2107 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2108 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2115 return s
->method
->ssl_renegotiate(s
);
2118 int SSL_renegotiate_abbreviated(SSL
*s
)
2120 if (SSL_IS_TLS13(s
)) {
2121 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2125 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2126 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2133 return s
->method
->ssl_renegotiate(s
);
2136 int SSL_renegotiate_pending(SSL
*s
)
2139 * becomes true when negotiation is requested; false again once a
2140 * handshake has finished
2142 return (s
->renegotiate
!= 0);
2145 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2150 case SSL_CTRL_GET_READ_AHEAD
:
2151 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2152 case SSL_CTRL_SET_READ_AHEAD
:
2153 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2154 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2157 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2158 s
->msg_callback_arg
= parg
;
2162 return (s
->mode
|= larg
);
2163 case SSL_CTRL_CLEAR_MODE
:
2164 return (s
->mode
&= ~larg
);
2165 case SSL_CTRL_GET_MAX_CERT_LIST
:
2166 return (long)s
->max_cert_list
;
2167 case SSL_CTRL_SET_MAX_CERT_LIST
:
2170 l
= (long)s
->max_cert_list
;
2171 s
->max_cert_list
= (size_t)larg
;
2173 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2174 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2176 s
->max_send_fragment
= larg
;
2177 if (s
->max_send_fragment
< s
->split_send_fragment
)
2178 s
->split_send_fragment
= s
->max_send_fragment
;
2180 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2181 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2183 s
->split_send_fragment
= larg
;
2185 case SSL_CTRL_SET_MAX_PIPELINES
:
2186 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2188 s
->max_pipelines
= larg
;
2190 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2192 case SSL_CTRL_GET_RI_SUPPORT
:
2194 return s
->s3
->send_connection_binding
;
2197 case SSL_CTRL_CERT_FLAGS
:
2198 return (s
->cert
->cert_flags
|= larg
);
2199 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2200 return (s
->cert
->cert_flags
&= ~larg
);
2202 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2204 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2206 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2207 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2209 return TLS_CIPHER_LEN
;
2211 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2212 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2214 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2218 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2219 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2220 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2221 &s
->min_proto_version
);
2222 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2223 return s
->min_proto_version
;
2224 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2225 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2226 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2227 &s
->max_proto_version
);
2228 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2229 return s
->max_proto_version
;
2231 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2235 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2238 case SSL_CTRL_SET_MSG_CALLBACK
:
2239 s
->msg_callback
= (void (*)
2240 (int write_p
, int version
, int content_type
,
2241 const void *buf
, size_t len
, SSL
*ssl
,
2246 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2250 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2252 return ctx
->sessions
;
2255 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2259 /* For some cases with ctx == NULL perform syntax checks */
2262 #ifndef OPENSSL_NO_EC
2263 case SSL_CTRL_SET_GROUPS_LIST
:
2264 return tls1_set_groups_list(NULL
, NULL
, parg
);
2266 case SSL_CTRL_SET_SIGALGS_LIST
:
2267 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2268 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2275 case SSL_CTRL_GET_READ_AHEAD
:
2276 return ctx
->read_ahead
;
2277 case SSL_CTRL_SET_READ_AHEAD
:
2278 l
= ctx
->read_ahead
;
2279 ctx
->read_ahead
= larg
;
2282 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2283 ctx
->msg_callback_arg
= parg
;
2286 case SSL_CTRL_GET_MAX_CERT_LIST
:
2287 return (long)ctx
->max_cert_list
;
2288 case SSL_CTRL_SET_MAX_CERT_LIST
:
2291 l
= (long)ctx
->max_cert_list
;
2292 ctx
->max_cert_list
= (size_t)larg
;
2295 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2298 l
= (long)ctx
->session_cache_size
;
2299 ctx
->session_cache_size
= (size_t)larg
;
2301 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2302 return (long)ctx
->session_cache_size
;
2303 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2304 l
= ctx
->session_cache_mode
;
2305 ctx
->session_cache_mode
= larg
;
2307 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2308 return ctx
->session_cache_mode
;
2310 case SSL_CTRL_SESS_NUMBER
:
2311 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2312 case SSL_CTRL_SESS_CONNECT
:
2313 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect
, &i
, ctx
->lock
)
2315 case SSL_CTRL_SESS_CONNECT_GOOD
:
2316 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_good
, &i
, ctx
->lock
)
2318 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2319 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_renegotiate
, &i
,
2322 case SSL_CTRL_SESS_ACCEPT
:
2323 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept
, &i
, ctx
->lock
)
2325 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2326 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_good
, &i
, ctx
->lock
)
2328 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2329 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_renegotiate
, &i
,
2332 case SSL_CTRL_SESS_HIT
:
2333 return CRYPTO_atomic_read(&ctx
->stats
.sess_hit
, &i
, ctx
->lock
)
2335 case SSL_CTRL_SESS_CB_HIT
:
2336 return CRYPTO_atomic_read(&ctx
->stats
.sess_cb_hit
, &i
, ctx
->lock
)
2338 case SSL_CTRL_SESS_MISSES
:
2339 return CRYPTO_atomic_read(&ctx
->stats
.sess_miss
, &i
, ctx
->lock
)
2341 case SSL_CTRL_SESS_TIMEOUTS
:
2342 return CRYPTO_atomic_read(&ctx
->stats
.sess_timeout
, &i
, ctx
->lock
)
2344 case SSL_CTRL_SESS_CACHE_FULL
:
2345 return CRYPTO_atomic_read(&ctx
->stats
.sess_cache_full
, &i
, ctx
->lock
)
2348 return (ctx
->mode
|= larg
);
2349 case SSL_CTRL_CLEAR_MODE
:
2350 return (ctx
->mode
&= ~larg
);
2351 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2352 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2354 ctx
->max_send_fragment
= larg
;
2355 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2356 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2358 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2359 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2361 ctx
->split_send_fragment
= larg
;
2363 case SSL_CTRL_SET_MAX_PIPELINES
:
2364 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2366 ctx
->max_pipelines
= larg
;
2368 case SSL_CTRL_CERT_FLAGS
:
2369 return (ctx
->cert
->cert_flags
|= larg
);
2370 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2371 return (ctx
->cert
->cert_flags
&= ~larg
);
2372 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2373 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2374 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2375 &ctx
->min_proto_version
);
2376 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2377 return ctx
->min_proto_version
;
2378 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2379 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2380 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2381 &ctx
->max_proto_version
);
2382 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2383 return ctx
->max_proto_version
;
2385 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2389 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2392 case SSL_CTRL_SET_MSG_CALLBACK
:
2393 ctx
->msg_callback
= (void (*)
2394 (int write_p
, int version
, int content_type
,
2395 const void *buf
, size_t len
, SSL
*ssl
,
2400 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2404 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2413 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2414 const SSL_CIPHER
*const *bp
)
2416 if ((*ap
)->id
> (*bp
)->id
)
2418 if ((*ap
)->id
< (*bp
)->id
)
2423 /** return a STACK of the ciphers available for the SSL and in order of
2425 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2428 if (s
->cipher_list
!= NULL
) {
2429 return s
->cipher_list
;
2430 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2431 return s
->ctx
->cipher_list
;
2437 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2439 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2441 return s
->session
->ciphers
;
2444 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2446 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2449 ciphers
= SSL_get_ciphers(s
);
2452 if (!ssl_set_client_disabled(s
))
2454 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2455 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2456 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2458 sk
= sk_SSL_CIPHER_new_null();
2461 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2462 sk_SSL_CIPHER_free(sk
);
2470 /** return a STACK of the ciphers available for the SSL and in order of
2472 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2475 if (s
->cipher_list_by_id
!= NULL
) {
2476 return s
->cipher_list_by_id
;
2477 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2478 return s
->ctx
->cipher_list_by_id
;
2484 /** The old interface to get the same thing as SSL_get_ciphers() */
2485 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2487 const SSL_CIPHER
*c
;
2488 STACK_OF(SSL_CIPHER
) *sk
;
2492 sk
= SSL_get_ciphers(s
);
2493 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2495 c
= sk_SSL_CIPHER_value(sk
, n
);
2501 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2503 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2506 return ctx
->cipher_list
;
2510 /** specify the ciphers to be used by default by the SSL_CTX */
2511 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2513 STACK_OF(SSL_CIPHER
) *sk
;
2515 sk
= ssl_create_cipher_list(ctx
->method
, ctx
->tls13_ciphersuites
,
2516 &ctx
->cipher_list
, &ctx
->cipher_list_by_id
, str
,
2519 * ssl_create_cipher_list may return an empty stack if it was unable to
2520 * find a cipher matching the given rule string (for example if the rule
2521 * string specifies a cipher which has been disabled). This is not an
2522 * error as far as ssl_create_cipher_list is concerned, and hence
2523 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2527 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2528 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2534 /** specify the ciphers to be used by the SSL */
2535 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2537 STACK_OF(SSL_CIPHER
) *sk
;
2539 sk
= ssl_create_cipher_list(s
->ctx
->method
, s
->tls13_ciphersuites
,
2540 &s
->cipher_list
, &s
->cipher_list_by_id
, str
,
2542 /* see comment in SSL_CTX_set_cipher_list */
2545 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2546 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2552 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2555 STACK_OF(SSL_CIPHER
) *sk
;
2556 const SSL_CIPHER
*c
;
2559 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2563 sk
= s
->session
->ciphers
;
2565 if (sk_SSL_CIPHER_num(sk
) == 0)
2568 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2571 c
= sk_SSL_CIPHER_value(sk
, i
);
2572 n
= strlen(c
->name
);
2588 /** return a servername extension value if provided in Client Hello, or NULL.
2589 * So far, only host_name types are defined (RFC 3546).
2592 const char *SSL_get_servername(const SSL
*s
, const int type
)
2594 if (type
!= TLSEXT_NAMETYPE_host_name
)
2597 return s
->session
&& !s
->ext
.hostname
?
2598 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2601 int SSL_get_servername_type(const SSL
*s
)
2604 && (!s
->ext
.hostname
? s
->session
->
2605 ext
.hostname
: s
->ext
.hostname
))
2606 return TLSEXT_NAMETYPE_host_name
;
2611 * SSL_select_next_proto implements the standard protocol selection. It is
2612 * expected that this function is called from the callback set by
2613 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2614 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2615 * not included in the length. A byte string of length 0 is invalid. No byte
2616 * string may be truncated. The current, but experimental algorithm for
2617 * selecting the protocol is: 1) If the server doesn't support NPN then this
2618 * is indicated to the callback. In this case, the client application has to
2619 * abort the connection or have a default application level protocol. 2) If
2620 * the server supports NPN, but advertises an empty list then the client
2621 * selects the first protocol in its list, but indicates via the API that this
2622 * fallback case was enacted. 3) Otherwise, the client finds the first
2623 * protocol in the server's list that it supports and selects this protocol.
2624 * This is because it's assumed that the server has better information about
2625 * which protocol a client should use. 4) If the client doesn't support any
2626 * of the server's advertised protocols, then this is treated the same as
2627 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2628 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2630 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2631 const unsigned char *server
,
2632 unsigned int server_len
,
2633 const unsigned char *client
, unsigned int client_len
)
2636 const unsigned char *result
;
2637 int status
= OPENSSL_NPN_UNSUPPORTED
;
2640 * For each protocol in server preference order, see if we support it.
2642 for (i
= 0; i
< server_len
;) {
2643 for (j
= 0; j
< client_len
;) {
2644 if (server
[i
] == client
[j
] &&
2645 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2646 /* We found a match */
2647 result
= &server
[i
];
2648 status
= OPENSSL_NPN_NEGOTIATED
;
2658 /* There's no overlap between our protocols and the server's list. */
2660 status
= OPENSSL_NPN_NO_OVERLAP
;
2663 *out
= (unsigned char *)result
+ 1;
2664 *outlen
= result
[0];
2668 #ifndef OPENSSL_NO_NEXTPROTONEG
2670 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2671 * client's requested protocol for this connection and returns 0. If the
2672 * client didn't request any protocol, then *data is set to NULL. Note that
2673 * the client can request any protocol it chooses. The value returned from
2674 * this function need not be a member of the list of supported protocols
2675 * provided by the callback.
2677 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2684 *len
= (unsigned int)s
->ext
.npn_len
;
2689 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2690 * a TLS server needs a list of supported protocols for Next Protocol
2691 * Negotiation. The returned list must be in wire format. The list is
2692 * returned by setting |out| to point to it and |outlen| to its length. This
2693 * memory will not be modified, but one should assume that the SSL* keeps a
2694 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2695 * wishes to advertise. Otherwise, no such extension will be included in the
2698 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2699 SSL_CTX_npn_advertised_cb_func cb
,
2702 ctx
->ext
.npn_advertised_cb
= cb
;
2703 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2707 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2708 * client needs to select a protocol from the server's provided list. |out|
2709 * must be set to point to the selected protocol (which may be within |in|).
2710 * The length of the protocol name must be written into |outlen|. The
2711 * server's advertised protocols are provided in |in| and |inlen|. The
2712 * callback can assume that |in| is syntactically valid. The client must
2713 * select a protocol. It is fatal to the connection if this callback returns
2714 * a value other than SSL_TLSEXT_ERR_OK.
2716 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2717 SSL_CTX_npn_select_cb_func cb
,
2720 ctx
->ext
.npn_select_cb
= cb
;
2721 ctx
->ext
.npn_select_cb_arg
= arg
;
2726 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2727 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2728 * length-prefixed strings). Returns 0 on success.
2730 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2731 unsigned int protos_len
)
2733 OPENSSL_free(ctx
->ext
.alpn
);
2734 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2735 if (ctx
->ext
.alpn
== NULL
) {
2736 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2739 ctx
->ext
.alpn_len
= protos_len
;
2745 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2746 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2747 * length-prefixed strings). Returns 0 on success.
2749 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2750 unsigned int protos_len
)
2752 OPENSSL_free(ssl
->ext
.alpn
);
2753 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2754 if (ssl
->ext
.alpn
== NULL
) {
2755 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2758 ssl
->ext
.alpn_len
= protos_len
;
2764 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2765 * called during ClientHello processing in order to select an ALPN protocol
2766 * from the client's list of offered protocols.
2768 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2769 SSL_CTX_alpn_select_cb_func cb
,
2772 ctx
->ext
.alpn_select_cb
= cb
;
2773 ctx
->ext
.alpn_select_cb_arg
= arg
;
2777 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2778 * On return it sets |*data| to point to |*len| bytes of protocol name
2779 * (not including the leading length-prefix byte). If the server didn't
2780 * respond with a negotiated protocol then |*len| will be zero.
2782 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2787 *data
= ssl
->s3
->alpn_selected
;
2791 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2794 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2795 const char *label
, size_t llen
,
2796 const unsigned char *context
, size_t contextlen
,
2799 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2802 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2804 contextlen
, use_context
);
2807 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
2808 const char *label
, size_t llen
,
2809 const unsigned char *context
,
2812 if (s
->version
!= TLS1_3_VERSION
)
2815 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
2816 context
, contextlen
);
2819 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2821 const unsigned char *session_id
= a
->session_id
;
2823 unsigned char tmp_storage
[4];
2825 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2826 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2827 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2828 session_id
= tmp_storage
;
2832 ((unsigned long)session_id
[0]) |
2833 ((unsigned long)session_id
[1] << 8L) |
2834 ((unsigned long)session_id
[2] << 16L) |
2835 ((unsigned long)session_id
[3] << 24L);
2840 * NB: If this function (or indeed the hash function which uses a sort of
2841 * coarser function than this one) is changed, ensure
2842 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2843 * being able to construct an SSL_SESSION that will collide with any existing
2844 * session with a matching session ID.
2846 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2848 if (a
->ssl_version
!= b
->ssl_version
)
2850 if (a
->session_id_length
!= b
->session_id_length
)
2852 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
2856 * These wrapper functions should remain rather than redeclaring
2857 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2858 * variable. The reason is that the functions aren't static, they're exposed
2862 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2864 SSL_CTX
*ret
= NULL
;
2867 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2871 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2874 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2875 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2878 ret
= OPENSSL_zalloc(sizeof(*ret
));
2883 ret
->min_proto_version
= 0;
2884 ret
->max_proto_version
= 0;
2885 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2886 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2887 /* We take the system default. */
2888 ret
->session_timeout
= meth
->get_timeout();
2889 ret
->references
= 1;
2890 ret
->lock
= CRYPTO_THREAD_lock_new();
2891 if (ret
->lock
== NULL
) {
2892 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2896 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2897 ret
->verify_mode
= SSL_VERIFY_NONE
;
2898 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2901 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2902 if (ret
->sessions
== NULL
)
2904 ret
->cert_store
= X509_STORE_new();
2905 if (ret
->cert_store
== NULL
)
2907 #ifndef OPENSSL_NO_CT
2908 ret
->ctlog_store
= CTLOG_STORE_new();
2909 if (ret
->ctlog_store
== NULL
)
2913 if (!SSL_CTX_set_ciphersuites(ret
, TLS_DEFAULT_CIPHERSUITES
))
2916 if (!ssl_create_cipher_list(ret
->method
,
2917 ret
->tls13_ciphersuites
,
2918 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2919 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2920 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2921 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2925 ret
->param
= X509_VERIFY_PARAM_new();
2926 if (ret
->param
== NULL
)
2929 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2930 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2933 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2934 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2938 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2941 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2944 if ((ret
->ext
.secure
= OPENSSL_secure_zalloc(sizeof(*ret
->ext
.secure
))) == NULL
)
2947 /* No compression for DTLS */
2948 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2949 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2951 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2952 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2954 /* Setup RFC5077 ticket keys */
2955 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2956 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2957 || (RAND_priv_bytes(ret
->ext
.secure
->tick_hmac_key
,
2958 sizeof(ret
->ext
.secure
->tick_hmac_key
)) <= 0)
2959 || (RAND_priv_bytes(ret
->ext
.secure
->tick_aes_key
,
2960 sizeof(ret
->ext
.secure
->tick_aes_key
)) <= 0))
2961 ret
->options
|= SSL_OP_NO_TICKET
;
2963 if (RAND_priv_bytes(ret
->ext
.cookie_hmac_key
,
2964 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
2967 #ifndef OPENSSL_NO_SRP
2968 if (!SSL_CTX_SRP_CTX_init(ret
))
2971 #ifndef OPENSSL_NO_ENGINE
2972 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2973 # define eng_strx(x) #x
2974 # define eng_str(x) eng_strx(x)
2975 /* Use specific client engine automatically... ignore errors */
2978 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2981 ENGINE_load_builtin_engines();
2982 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2984 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2990 * Default is to connect to non-RI servers. When RI is more widely
2991 * deployed might change this.
2993 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2995 * Disable compression by default to prevent CRIME. Applications can
2996 * re-enable compression by configuring
2997 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2998 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
2999 * middlebox compatibility by default. This may be disabled by default in
3000 * a later OpenSSL version.
3002 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3004 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3007 * We cannot usefully set a default max_early_data here (which gets
3008 * propagated in SSL_new(), for the following reason: setting the
3009 * SSL field causes tls_construct_stoc_early_data() to tell the
3010 * client that early data will be accepted when constructing a TLS 1.3
3011 * session ticket, and the client will accordingly send us early data
3012 * when using that ticket (if the client has early data to send).
3013 * However, in order for the early data to actually be consumed by
3014 * the application, the application must also have calls to
3015 * SSL_read_early_data(); otherwise we'll just skip past the early data
3016 * and ignore it. So, since the application must add calls to
3017 * SSL_read_early_data(), we also require them to add
3018 * calls to SSL_CTX_set_max_early_data() in order to use early data,
3019 * eliminating the bandwidth-wasting early data in the case described
3022 ret
->max_early_data
= 0;
3024 ssl_ctx_system_config(ret
);
3028 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3034 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3038 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3041 REF_PRINT_COUNT("SSL_CTX", ctx
);
3042 REF_ASSERT_ISNT(i
< 2);
3043 return ((i
> 1) ? 1 : 0);
3046 void SSL_CTX_free(SSL_CTX
*a
)
3053 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3054 REF_PRINT_COUNT("SSL_CTX", a
);
3057 REF_ASSERT_ISNT(i
< 0);
3059 X509_VERIFY_PARAM_free(a
->param
);
3060 dane_ctx_final(&a
->dane
);
3063 * Free internal session cache. However: the remove_cb() may reference
3064 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3065 * after the sessions were flushed.
3066 * As the ex_data handling routines might also touch the session cache,
3067 * the most secure solution seems to be: empty (flush) the cache, then
3068 * free ex_data, then finally free the cache.
3069 * (See ticket [openssl.org #212].)
3071 if (a
->sessions
!= NULL
)
3072 SSL_CTX_flush_sessions(a
, 0);
3074 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3075 lh_SSL_SESSION_free(a
->sessions
);
3076 X509_STORE_free(a
->cert_store
);
3077 #ifndef OPENSSL_NO_CT
3078 CTLOG_STORE_free(a
->ctlog_store
);
3080 sk_SSL_CIPHER_free(a
->cipher_list
);
3081 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3082 sk_SSL_CIPHER_free(a
->tls13_ciphersuites
);
3083 ssl_cert_free(a
->cert
);
3084 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3085 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3086 a
->comp_methods
= NULL
;
3087 #ifndef OPENSSL_NO_SRTP
3088 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3090 #ifndef OPENSSL_NO_SRP
3091 SSL_CTX_SRP_CTX_free(a
);
3093 #ifndef OPENSSL_NO_ENGINE
3094 ENGINE_finish(a
->client_cert_engine
);
3097 #ifndef OPENSSL_NO_EC
3098 OPENSSL_free(a
->ext
.ecpointformats
);
3099 OPENSSL_free(a
->ext
.supportedgroups
);
3101 OPENSSL_free(a
->ext
.alpn
);
3102 OPENSSL_secure_free(a
->ext
.secure
);
3104 CRYPTO_THREAD_lock_free(a
->lock
);
3109 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3111 ctx
->default_passwd_callback
= cb
;
3114 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3116 ctx
->default_passwd_callback_userdata
= u
;
3119 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3121 return ctx
->default_passwd_callback
;
3124 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3126 return ctx
->default_passwd_callback_userdata
;
3129 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3131 s
->default_passwd_callback
= cb
;
3134 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3136 s
->default_passwd_callback_userdata
= u
;
3139 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3141 return s
->default_passwd_callback
;
3144 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3146 return s
->default_passwd_callback_userdata
;
3149 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3150 int (*cb
) (X509_STORE_CTX
*, void *),
3153 ctx
->app_verify_callback
= cb
;
3154 ctx
->app_verify_arg
= arg
;
3157 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3158 int (*cb
) (int, X509_STORE_CTX
*))
3160 ctx
->verify_mode
= mode
;
3161 ctx
->default_verify_callback
= cb
;
3164 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3166 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3169 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3171 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3174 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3176 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3179 void ssl_set_masks(SSL
*s
)
3182 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3183 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3184 unsigned long mask_k
, mask_a
;
3185 #ifndef OPENSSL_NO_EC
3186 int have_ecc_cert
, ecdsa_ok
;
3191 #ifndef OPENSSL_NO_DH
3192 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3197 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3198 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3199 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3200 #ifndef OPENSSL_NO_EC
3201 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3207 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3208 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3211 #ifndef OPENSSL_NO_GOST
3212 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3213 mask_k
|= SSL_kGOST
;
3214 mask_a
|= SSL_aGOST12
;
3216 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3217 mask_k
|= SSL_kGOST
;
3218 mask_a
|= SSL_aGOST12
;
3220 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3221 mask_k
|= SSL_kGOST
;
3222 mask_a
|= SSL_aGOST01
;
3233 * If we only have an RSA-PSS certificate allow RSA authentication
3234 * if TLS 1.2 and peer supports it.
3237 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3238 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3239 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3246 mask_a
|= SSL_aNULL
;
3249 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3250 * depending on the key usage extension.
3252 #ifndef OPENSSL_NO_EC
3253 if (have_ecc_cert
) {
3255 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3256 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3257 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3260 mask_a
|= SSL_aECDSA
;
3262 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3263 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3264 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3265 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3266 mask_a
|= SSL_aECDSA
;
3268 /* Allow Ed448 for TLS 1.2 if peer supports it */
3269 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED448
)
3270 && pvalid
[SSL_PKEY_ED448
] & CERT_PKEY_EXPLICIT_SIGN
3271 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3272 mask_a
|= SSL_aECDSA
;
3275 #ifndef OPENSSL_NO_EC
3276 mask_k
|= SSL_kECDHE
;
3279 #ifndef OPENSSL_NO_PSK
3282 if (mask_k
& SSL_kRSA
)
3283 mask_k
|= SSL_kRSAPSK
;
3284 if (mask_k
& SSL_kDHE
)
3285 mask_k
|= SSL_kDHEPSK
;
3286 if (mask_k
& SSL_kECDHE
)
3287 mask_k
|= SSL_kECDHEPSK
;
3290 s
->s3
->tmp
.mask_k
= mask_k
;
3291 s
->s3
->tmp
.mask_a
= mask_a
;
3294 #ifndef OPENSSL_NO_EC
3296 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3298 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3299 /* key usage, if present, must allow signing */
3300 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3301 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3302 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3306 return 1; /* all checks are ok */
3311 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3312 size_t *serverinfo_length
)
3314 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3315 *serverinfo_length
= 0;
3317 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3320 *serverinfo
= cpk
->serverinfo
;
3321 *serverinfo_length
= cpk
->serverinfo_length
;
3325 void ssl_update_cache(SSL
*s
, int mode
)
3330 * If the session_id_length is 0, we are not supposed to cache it, and it
3331 * would be rather hard to do anyway :-)
3333 if (s
->session
->session_id_length
== 0)
3337 * If sid_ctx_length is 0 there is no specific application context
3338 * associated with this session, so when we try to resume it and
3339 * SSL_VERIFY_PEER is requested, we have no indication that this is
3340 * actually a session for the proper application context, and the
3341 * *handshake* will fail, not just the resumption attempt.
3342 * Do not cache these sessions that are not resumable.
3344 if (s
->session
->sid_ctx_length
== 0
3345 && (s
->verify_mode
& SSL_VERIFY_PEER
) != 0)
3348 i
= s
->session_ctx
->session_cache_mode
;
3350 && (!s
->hit
|| SSL_IS_TLS13(s
))
3351 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) != 0
3352 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
3353 && s
->session_ctx
->new_session_cb
!= NULL
) {
3354 SSL_SESSION_up_ref(s
->session
);
3355 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3356 SSL_SESSION_free(s
->session
);
3359 /* auto flush every 255 connections */
3360 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3362 if (mode
& SSL_SESS_CACHE_CLIENT
)
3363 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3365 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3366 if (CRYPTO_atomic_read(stat
, &val
, s
->session_ctx
->lock
)
3367 && (val
& 0xff) == 0xff)
3368 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3372 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3377 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3382 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3386 if (s
->method
!= meth
) {
3387 const SSL_METHOD
*sm
= s
->method
;
3388 int (*hf
) (SSL
*) = s
->handshake_func
;
3390 if (sm
->version
== meth
->version
)
3395 ret
= s
->method
->ssl_new(s
);
3398 if (hf
== sm
->ssl_connect
)
3399 s
->handshake_func
= meth
->ssl_connect
;
3400 else if (hf
== sm
->ssl_accept
)
3401 s
->handshake_func
= meth
->ssl_accept
;
3406 int SSL_get_error(const SSL
*s
, int i
)
3413 return SSL_ERROR_NONE
;
3416 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3417 * where we do encode the error
3419 if ((l
= ERR_peek_error()) != 0) {
3420 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3421 return SSL_ERROR_SYSCALL
;
3423 return SSL_ERROR_SSL
;
3426 if (SSL_want_read(s
)) {
3427 bio
= SSL_get_rbio(s
);
3428 if (BIO_should_read(bio
))
3429 return SSL_ERROR_WANT_READ
;
3430 else if (BIO_should_write(bio
))
3432 * This one doesn't make too much sense ... We never try to write
3433 * to the rbio, and an application program where rbio and wbio
3434 * are separate couldn't even know what it should wait for.
3435 * However if we ever set s->rwstate incorrectly (so that we have
3436 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3437 * wbio *are* the same, this test works around that bug; so it
3438 * might be safer to keep it.
3440 return SSL_ERROR_WANT_WRITE
;
3441 else if (BIO_should_io_special(bio
)) {
3442 reason
= BIO_get_retry_reason(bio
);
3443 if (reason
== BIO_RR_CONNECT
)
3444 return SSL_ERROR_WANT_CONNECT
;
3445 else if (reason
== BIO_RR_ACCEPT
)
3446 return SSL_ERROR_WANT_ACCEPT
;
3448 return SSL_ERROR_SYSCALL
; /* unknown */
3452 if (SSL_want_write(s
)) {
3453 /* Access wbio directly - in order to use the buffered bio if present */
3455 if (BIO_should_write(bio
))
3456 return SSL_ERROR_WANT_WRITE
;
3457 else if (BIO_should_read(bio
))
3459 * See above (SSL_want_read(s) with BIO_should_write(bio))
3461 return SSL_ERROR_WANT_READ
;
3462 else if (BIO_should_io_special(bio
)) {
3463 reason
= BIO_get_retry_reason(bio
);
3464 if (reason
== BIO_RR_CONNECT
)
3465 return SSL_ERROR_WANT_CONNECT
;
3466 else if (reason
== BIO_RR_ACCEPT
)
3467 return SSL_ERROR_WANT_ACCEPT
;
3469 return SSL_ERROR_SYSCALL
;
3472 if (SSL_want_x509_lookup(s
))
3473 return SSL_ERROR_WANT_X509_LOOKUP
;
3474 if (SSL_want_async(s
))
3475 return SSL_ERROR_WANT_ASYNC
;
3476 if (SSL_want_async_job(s
))
3477 return SSL_ERROR_WANT_ASYNC_JOB
;
3478 if (SSL_want_client_hello_cb(s
))
3479 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3481 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3482 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3483 return SSL_ERROR_ZERO_RETURN
;
3485 return SSL_ERROR_SYSCALL
;
3488 static int ssl_do_handshake_intern(void *vargs
)
3490 struct ssl_async_args
*args
;
3493 args
= (struct ssl_async_args
*)vargs
;
3496 return s
->handshake_func(s
);
3499 int SSL_do_handshake(SSL
*s
)
3503 if (s
->handshake_func
== NULL
) {
3504 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3508 ossl_statem_check_finish_init(s
, -1);
3510 s
->method
->ssl_renegotiate_check(s
, 0);
3512 if (SSL_is_server(s
)) {
3513 /* clear SNI settings at server-side */
3514 OPENSSL_free(s
->ext
.hostname
);
3515 s
->ext
.hostname
= NULL
;
3518 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3519 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3520 struct ssl_async_args args
;
3524 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3526 ret
= s
->handshake_func(s
);
3532 void SSL_set_accept_state(SSL
*s
)
3536 ossl_statem_clear(s
);
3537 s
->handshake_func
= s
->method
->ssl_accept
;
3541 void SSL_set_connect_state(SSL
*s
)
3545 ossl_statem_clear(s
);
3546 s
->handshake_func
= s
->method
->ssl_connect
;
3550 int ssl_undefined_function(SSL
*s
)
3552 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3556 int ssl_undefined_void_function(void)
3558 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3559 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3563 int ssl_undefined_const_function(const SSL
*s
)
3568 const SSL_METHOD
*ssl_bad_method(int ver
)
3570 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3574 const char *ssl_protocol_to_string(int version
)
3578 case TLS1_3_VERSION
:
3581 case TLS1_2_VERSION
:
3584 case TLS1_1_VERSION
:
3599 case DTLS1_2_VERSION
:
3607 const char *SSL_get_version(const SSL
*s
)
3609 return ssl_protocol_to_string(s
->version
);
3612 SSL
*SSL_dup(SSL
*s
)
3614 STACK_OF(X509_NAME
) *sk
;
3619 /* If we're not quiescent, just up_ref! */
3620 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3621 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3626 * Otherwise, copy configuration state, and session if set.
3628 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3631 if (s
->session
!= NULL
) {
3633 * Arranges to share the same session via up_ref. This "copies"
3634 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3636 if (!SSL_copy_session_id(ret
, s
))
3640 * No session has been established yet, so we have to expect that
3641 * s->cert or ret->cert will be changed later -- they should not both
3642 * point to the same object, and thus we can't use
3643 * SSL_copy_session_id.
3645 if (!SSL_set_ssl_method(ret
, s
->method
))
3648 if (s
->cert
!= NULL
) {
3649 ssl_cert_free(ret
->cert
);
3650 ret
->cert
= ssl_cert_dup(s
->cert
);
3651 if (ret
->cert
== NULL
)
3655 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3656 (int)s
->sid_ctx_length
))
3660 if (!ssl_dane_dup(ret
, s
))
3662 ret
->version
= s
->version
;
3663 ret
->options
= s
->options
;
3664 ret
->mode
= s
->mode
;
3665 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3666 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3667 ret
->msg_callback
= s
->msg_callback
;
3668 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3669 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3670 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3671 ret
->generate_session_id
= s
->generate_session_id
;
3673 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3675 /* copy app data, a little dangerous perhaps */
3676 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3679 /* setup rbio, and wbio */
3680 if (s
->rbio
!= NULL
) {
3681 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3684 if (s
->wbio
!= NULL
) {
3685 if (s
->wbio
!= s
->rbio
) {
3686 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3689 BIO_up_ref(ret
->rbio
);
3690 ret
->wbio
= ret
->rbio
;
3694 ret
->server
= s
->server
;
3695 if (s
->handshake_func
) {
3697 SSL_set_accept_state(ret
);
3699 SSL_set_connect_state(ret
);
3701 ret
->shutdown
= s
->shutdown
;
3704 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3705 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3707 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3709 /* dup the cipher_list and cipher_list_by_id stacks */
3710 if (s
->cipher_list
!= NULL
) {
3711 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3714 if (s
->cipher_list_by_id
!= NULL
)
3715 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3719 /* Dup the client_CA list */
3720 if (s
->ca_names
!= NULL
) {
3721 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3724 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3725 xn
= sk_X509_NAME_value(sk
, i
);
3726 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3739 void ssl_clear_cipher_ctx(SSL
*s
)
3741 if (s
->enc_read_ctx
!= NULL
) {
3742 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3743 s
->enc_read_ctx
= NULL
;
3745 if (s
->enc_write_ctx
!= NULL
) {
3746 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3747 s
->enc_write_ctx
= NULL
;
3749 #ifndef OPENSSL_NO_COMP
3750 COMP_CTX_free(s
->expand
);
3752 COMP_CTX_free(s
->compress
);
3757 X509
*SSL_get_certificate(const SSL
*s
)
3759 if (s
->cert
!= NULL
)
3760 return s
->cert
->key
->x509
;
3765 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3767 if (s
->cert
!= NULL
)
3768 return s
->cert
->key
->privatekey
;
3773 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3775 if (ctx
->cert
!= NULL
)
3776 return ctx
->cert
->key
->x509
;
3781 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3783 if (ctx
->cert
!= NULL
)
3784 return ctx
->cert
->key
->privatekey
;
3789 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3791 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3792 return s
->session
->cipher
;
3796 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
3798 return s
->s3
->tmp
.new_cipher
;
3801 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3803 #ifndef OPENSSL_NO_COMP
3804 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3810 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3812 #ifndef OPENSSL_NO_COMP
3813 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3819 int ssl_init_wbio_buffer(SSL
*s
)
3823 if (s
->bbio
!= NULL
) {
3824 /* Already buffered. */
3828 bbio
= BIO_new(BIO_f_buffer());
3829 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3831 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3835 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3840 int ssl_free_wbio_buffer(SSL
*s
)
3842 /* callers ensure s is never null */
3843 if (s
->bbio
== NULL
)
3846 s
->wbio
= BIO_pop(s
->wbio
);
3853 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3855 ctx
->quiet_shutdown
= mode
;
3858 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3860 return ctx
->quiet_shutdown
;
3863 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3865 s
->quiet_shutdown
= mode
;
3868 int SSL_get_quiet_shutdown(const SSL
*s
)
3870 return s
->quiet_shutdown
;
3873 void SSL_set_shutdown(SSL
*s
, int mode
)
3878 int SSL_get_shutdown(const SSL
*s
)
3883 int SSL_version(const SSL
*s
)
3888 int SSL_client_version(const SSL
*s
)
3890 return s
->client_version
;
3893 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3898 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3901 if (ssl
->ctx
== ctx
)
3904 ctx
= ssl
->session_ctx
;
3905 new_cert
= ssl_cert_dup(ctx
->cert
);
3906 if (new_cert
== NULL
) {
3910 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
3911 ssl_cert_free(new_cert
);
3915 ssl_cert_free(ssl
->cert
);
3916 ssl
->cert
= new_cert
;
3919 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3920 * so setter APIs must prevent invalid lengths from entering the system.
3922 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
3926 * If the session ID context matches that of the parent SSL_CTX,
3927 * inherit it from the new SSL_CTX as well. If however the context does
3928 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3929 * leave it unchanged.
3931 if ((ssl
->ctx
!= NULL
) &&
3932 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3933 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3934 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3935 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3938 SSL_CTX_up_ref(ctx
);
3939 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3945 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3947 return X509_STORE_set_default_paths(ctx
->cert_store
);
3950 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3952 X509_LOOKUP
*lookup
;
3954 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
3957 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3959 /* Clear any errors if the default directory does not exist */
3965 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
3967 X509_LOOKUP
*lookup
;
3969 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
3973 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3975 /* Clear any errors if the default file does not exist */
3981 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3984 return X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
);
3987 void SSL_set_info_callback(SSL
*ssl
,
3988 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3990 ssl
->info_callback
= cb
;
3994 * One compiler (Diab DCC) doesn't like argument names in returned function
3997 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
4000 return ssl
->info_callback
;
4003 void SSL_set_verify_result(SSL
*ssl
, long arg
)
4005 ssl
->verify_result
= arg
;
4008 long SSL_get_verify_result(const SSL
*ssl
)
4010 return ssl
->verify_result
;
4013 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4016 return sizeof(ssl
->s3
->client_random
);
4017 if (outlen
> sizeof(ssl
->s3
->client_random
))
4018 outlen
= sizeof(ssl
->s3
->client_random
);
4019 memcpy(out
, ssl
->s3
->client_random
, outlen
);
4023 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
4026 return sizeof(ssl
->s3
->server_random
);
4027 if (outlen
> sizeof(ssl
->s3
->server_random
))
4028 outlen
= sizeof(ssl
->s3
->server_random
);
4029 memcpy(out
, ssl
->s3
->server_random
, outlen
);
4033 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4034 unsigned char *out
, size_t outlen
)
4037 return session
->master_key_length
;
4038 if (outlen
> session
->master_key_length
)
4039 outlen
= session
->master_key_length
;
4040 memcpy(out
, session
->master_key
, outlen
);
4044 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4047 if (len
> sizeof(sess
->master_key
))
4050 memcpy(sess
->master_key
, in
, len
);
4051 sess
->master_key_length
= len
;
4056 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4058 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4061 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4063 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4066 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4068 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4071 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4073 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4076 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4078 return ctx
->cert_store
;
4081 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4083 X509_STORE_free(ctx
->cert_store
);
4084 ctx
->cert_store
= store
;
4087 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4090 X509_STORE_up_ref(store
);
4091 SSL_CTX_set_cert_store(ctx
, store
);
4094 int SSL_want(const SSL
*s
)
4100 * \brief Set the callback for generating temporary DH keys.
4101 * \param ctx the SSL context.
4102 * \param dh the callback
4105 #ifndef OPENSSL_NO_DH
4106 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4107 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4110 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4113 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4116 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4120 #ifndef OPENSSL_NO_PSK
4121 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4123 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4124 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4127 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4128 if (identity_hint
!= NULL
) {
4129 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4130 if (ctx
->cert
->psk_identity_hint
== NULL
)
4133 ctx
->cert
->psk_identity_hint
= NULL
;
4137 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4142 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4143 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4146 OPENSSL_free(s
->cert
->psk_identity_hint
);
4147 if (identity_hint
!= NULL
) {
4148 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4149 if (s
->cert
->psk_identity_hint
== NULL
)
4152 s
->cert
->psk_identity_hint
= NULL
;
4156 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4158 if (s
== NULL
|| s
->session
== NULL
)
4160 return s
->session
->psk_identity_hint
;
4163 const char *SSL_get_psk_identity(const SSL
*s
)
4165 if (s
== NULL
|| s
->session
== NULL
)
4167 return s
->session
->psk_identity
;
4170 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4172 s
->psk_client_callback
= cb
;
4175 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4177 ctx
->psk_client_callback
= cb
;
4180 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4182 s
->psk_server_callback
= cb
;
4185 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4187 ctx
->psk_server_callback
= cb
;
4191 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4193 s
->psk_find_session_cb
= cb
;
4196 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4197 SSL_psk_find_session_cb_func cb
)
4199 ctx
->psk_find_session_cb
= cb
;
4202 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4204 s
->psk_use_session_cb
= cb
;
4207 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4208 SSL_psk_use_session_cb_func cb
)
4210 ctx
->psk_use_session_cb
= cb
;
4213 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4214 void (*cb
) (int write_p
, int version
,
4215 int content_type
, const void *buf
,
4216 size_t len
, SSL
*ssl
, void *arg
))
4218 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4221 void SSL_set_msg_callback(SSL
*ssl
,
4222 void (*cb
) (int write_p
, int version
,
4223 int content_type
, const void *buf
,
4224 size_t len
, SSL
*ssl
, void *arg
))
4226 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4229 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4230 int (*cb
) (SSL
*ssl
,
4234 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4235 (void (*)(void))cb
);
4238 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4239 int (*cb
) (SSL
*ssl
,
4240 int is_forward_secure
))
4242 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4243 (void (*)(void))cb
);
4246 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4247 size_t (*cb
) (SSL
*ssl
, int type
,
4248 size_t len
, void *arg
))
4250 ctx
->record_padding_cb
= cb
;
4253 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4255 ctx
->record_padding_arg
= arg
;
4258 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
4260 return ctx
->record_padding_arg
;
4263 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4265 /* block size of 0 or 1 is basically no padding */
4266 if (block_size
== 1)
4267 ctx
->block_padding
= 0;
4268 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4269 ctx
->block_padding
= block_size
;
4275 void SSL_set_record_padding_callback(SSL
*ssl
,
4276 size_t (*cb
) (SSL
*ssl
, int type
,
4277 size_t len
, void *arg
))
4279 ssl
->record_padding_cb
= cb
;
4282 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4284 ssl
->record_padding_arg
= arg
;
4287 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
4289 return ssl
->record_padding_arg
;
4292 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4294 /* block size of 0 or 1 is basically no padding */
4295 if (block_size
== 1)
4296 ssl
->block_padding
= 0;
4297 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4298 ssl
->block_padding
= block_size
;
4305 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4306 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4307 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4308 * Returns the newly allocated ctx;
4311 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4313 ssl_clear_hash_ctx(hash
);
4314 *hash
= EVP_MD_CTX_new();
4315 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4316 EVP_MD_CTX_free(*hash
);
4323 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4326 EVP_MD_CTX_free(*hash
);
4330 /* Retrieve handshake hashes */
4331 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4334 EVP_MD_CTX
*ctx
= NULL
;
4335 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4336 int hashleni
= EVP_MD_CTX_size(hdgst
);
4339 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4340 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4341 ERR_R_INTERNAL_ERROR
);
4345 ctx
= EVP_MD_CTX_new();
4349 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4350 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4351 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4352 ERR_R_INTERNAL_ERROR
);
4356 *hashlen
= hashleni
;
4360 EVP_MD_CTX_free(ctx
);
4364 int SSL_session_reused(SSL
*s
)
4369 int SSL_is_server(const SSL
*s
)
4374 #if OPENSSL_API_COMPAT < 0x10100000L
4375 void SSL_set_debug(SSL
*s
, int debug
)
4377 /* Old function was do-nothing anyway... */
4383 void SSL_set_security_level(SSL
*s
, int level
)
4385 s
->cert
->sec_level
= level
;
4388 int SSL_get_security_level(const SSL
*s
)
4390 return s
->cert
->sec_level
;
4393 void SSL_set_security_callback(SSL
*s
,
4394 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4395 int op
, int bits
, int nid
,
4396 void *other
, void *ex
))
4398 s
->cert
->sec_cb
= cb
;
4401 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4402 const SSL_CTX
*ctx
, int op
,
4403 int bits
, int nid
, void *other
,
4405 return s
->cert
->sec_cb
;
4408 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4410 s
->cert
->sec_ex
= ex
;
4413 void *SSL_get0_security_ex_data(const SSL
*s
)
4415 return s
->cert
->sec_ex
;
4418 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4420 ctx
->cert
->sec_level
= level
;
4423 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4425 return ctx
->cert
->sec_level
;
4428 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4429 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4430 int op
, int bits
, int nid
,
4431 void *other
, void *ex
))
4433 ctx
->cert
->sec_cb
= cb
;
4436 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4442 return ctx
->cert
->sec_cb
;
4445 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4447 ctx
->cert
->sec_ex
= ex
;
4450 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4452 return ctx
->cert
->sec_ex
;
4456 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4457 * can return unsigned long, instead of the generic long return value from the
4458 * control interface.
4460 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4462 return ctx
->options
;
4465 unsigned long SSL_get_options(const SSL
*s
)
4470 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4472 return ctx
->options
|= op
;
4475 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4477 return s
->options
|= op
;
4480 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4482 return ctx
->options
&= ~op
;
4485 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4487 return s
->options
&= ~op
;
4490 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4492 return s
->verified_chain
;
4495 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4497 #ifndef OPENSSL_NO_CT
4500 * Moves SCTs from the |src| stack to the |dst| stack.
4501 * The source of each SCT will be set to |origin|.
4502 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4504 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4506 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4507 sct_source_t origin
)
4513 *dst
= sk_SCT_new_null();
4515 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4520 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4521 if (SCT_set_source(sct
, origin
) != 1)
4524 if (sk_SCT_push(*dst
, sct
) <= 0)
4532 sk_SCT_push(src
, sct
); /* Put the SCT back */
4537 * Look for data collected during ServerHello and parse if found.
4538 * Returns the number of SCTs extracted.
4540 static int ct_extract_tls_extension_scts(SSL
*s
)
4542 int scts_extracted
= 0;
4544 if (s
->ext
.scts
!= NULL
) {
4545 const unsigned char *p
= s
->ext
.scts
;
4546 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4548 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4550 SCT_LIST_free(scts
);
4553 return scts_extracted
;
4557 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4558 * contains an SCT X509 extension. They will be stored in |s->scts|.
4560 * - The number of SCTs extracted, assuming an OCSP response exists.
4561 * - 0 if no OCSP response exists or it contains no SCTs.
4562 * - A negative integer if an error occurs.
4564 static int ct_extract_ocsp_response_scts(SSL
*s
)
4566 # ifndef OPENSSL_NO_OCSP
4567 int scts_extracted
= 0;
4568 const unsigned char *p
;
4569 OCSP_BASICRESP
*br
= NULL
;
4570 OCSP_RESPONSE
*rsp
= NULL
;
4571 STACK_OF(SCT
) *scts
= NULL
;
4574 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4577 p
= s
->ext
.ocsp
.resp
;
4578 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4582 br
= OCSP_response_get1_basic(rsp
);
4586 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4587 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4593 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4595 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4596 if (scts_extracted
< 0)
4600 SCT_LIST_free(scts
);
4601 OCSP_BASICRESP_free(br
);
4602 OCSP_RESPONSE_free(rsp
);
4603 return scts_extracted
;
4605 /* Behave as if no OCSP response exists */
4611 * Attempts to extract SCTs from the peer certificate.
4612 * Return the number of SCTs extracted, or a negative integer if an error
4615 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4617 int scts_extracted
= 0;
4618 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4621 STACK_OF(SCT
) *scts
=
4622 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4625 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4627 SCT_LIST_free(scts
);
4630 return scts_extracted
;
4634 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4635 * response (if it exists) and X509v3 extensions in the certificate.
4636 * Returns NULL if an error occurs.
4638 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4640 if (!s
->scts_parsed
) {
4641 if (ct_extract_tls_extension_scts(s
) < 0 ||
4642 ct_extract_ocsp_response_scts(s
) < 0 ||
4643 ct_extract_x509v3_extension_scts(s
) < 0)
4653 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4654 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4659 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4660 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4662 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4665 for (i
= 0; i
< count
; ++i
) {
4666 SCT
*sct
= sk_SCT_value(scts
, i
);
4667 int status
= SCT_get_validation_status(sct
);
4669 if (status
== SCT_VALIDATION_STATUS_VALID
)
4672 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4676 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4680 * Since code exists that uses the custom extension handler for CT, look
4681 * for this and throw an error if they have already registered to use CT.
4683 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4684 TLSEXT_TYPE_signed_certificate_timestamp
))
4686 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4687 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4691 if (callback
!= NULL
) {
4693 * If we are validating CT, then we MUST accept SCTs served via OCSP
4695 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4699 s
->ct_validation_callback
= callback
;
4700 s
->ct_validation_callback_arg
= arg
;
4705 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4706 ssl_ct_validation_cb callback
, void *arg
)
4709 * Since code exists that uses the custom extension handler for CT, look for
4710 * this and throw an error if they have already registered to use CT.
4712 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4713 TLSEXT_TYPE_signed_certificate_timestamp
))
4715 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4716 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4720 ctx
->ct_validation_callback
= callback
;
4721 ctx
->ct_validation_callback_arg
= arg
;
4725 int SSL_ct_is_enabled(const SSL
*s
)
4727 return s
->ct_validation_callback
!= NULL
;
4730 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4732 return ctx
->ct_validation_callback
!= NULL
;
4735 int ssl_validate_ct(SSL
*s
)
4738 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4740 SSL_DANE
*dane
= &s
->dane
;
4741 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4742 const STACK_OF(SCT
) *scts
;
4745 * If no callback is set, the peer is anonymous, or its chain is invalid,
4746 * skip SCT validation - just return success. Applications that continue
4747 * handshakes without certificates, with unverified chains, or pinned leaf
4748 * certificates are outside the scope of the WebPKI and CT.
4750 * The above exclusions notwithstanding the vast majority of peers will
4751 * have rather ordinary certificate chains validated by typical
4752 * applications that perform certificate verification and therefore will
4753 * process SCTs when enabled.
4755 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4756 s
->verify_result
!= X509_V_OK
||
4757 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4761 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4762 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4764 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4765 switch (dane
->mtlsa
->usage
) {
4766 case DANETLS_USAGE_DANE_TA
:
4767 case DANETLS_USAGE_DANE_EE
:
4772 ctx
= CT_POLICY_EVAL_CTX_new();
4774 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
4775 ERR_R_MALLOC_FAILURE
);
4779 issuer
= sk_X509_value(s
->verified_chain
, 1);
4780 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4781 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4782 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4783 CT_POLICY_EVAL_CTX_set_time(
4784 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4786 scts
= SSL_get0_peer_scts(s
);
4789 * This function returns success (> 0) only when all the SCTs are valid, 0
4790 * when some are invalid, and < 0 on various internal errors (out of
4791 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4792 * reason to abort the handshake, that decision is up to the callback.
4793 * Therefore, we error out only in the unexpected case that the return
4794 * value is negative.
4796 * XXX: One might well argue that the return value of this function is an
4797 * unfortunate design choice. Its job is only to determine the validation
4798 * status of each of the provided SCTs. So long as it correctly separates
4799 * the wheat from the chaff it should return success. Failure in this case
4800 * ought to correspond to an inability to carry out its duties.
4802 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4803 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4804 SSL_R_SCT_VERIFICATION_FAILED
);
4808 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4810 ret
= 0; /* This function returns 0 on failure */
4812 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4813 SSL_R_CALLBACK_FAILED
);
4816 CT_POLICY_EVAL_CTX_free(ctx
);
4818 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4819 * failure return code here. Also the application may wish the complete
4820 * the handshake, and then disconnect cleanly at a higher layer, after
4821 * checking the verification status of the completed connection.
4823 * We therefore force a certificate verification failure which will be
4824 * visible via SSL_get_verify_result() and cached as part of any resumed
4827 * Note: the permissive callback is for information gathering only, always
4828 * returns success, and does not affect verification status. Only the
4829 * strict callback or a custom application-specified callback can trigger
4830 * connection failure or record a verification error.
4833 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4837 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4839 switch (validation_mode
) {
4841 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4843 case SSL_CT_VALIDATION_PERMISSIVE
:
4844 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4845 case SSL_CT_VALIDATION_STRICT
:
4846 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4850 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4852 switch (validation_mode
) {
4854 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4856 case SSL_CT_VALIDATION_PERMISSIVE
:
4857 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4858 case SSL_CT_VALIDATION_STRICT
:
4859 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4863 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4865 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4868 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4870 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4873 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4875 CTLOG_STORE_free(ctx
->ctlog_store
);
4876 ctx
->ctlog_store
= logs
;
4879 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4881 return ctx
->ctlog_store
;
4884 #endif /* OPENSSL_NO_CT */
4886 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
4889 c
->client_hello_cb
= cb
;
4890 c
->client_hello_cb_arg
= arg
;
4893 int SSL_client_hello_isv2(SSL
*s
)
4895 if (s
->clienthello
== NULL
)
4897 return s
->clienthello
->isv2
;
4900 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
4902 if (s
->clienthello
== NULL
)
4904 return s
->clienthello
->legacy_version
;
4907 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
4909 if (s
->clienthello
== NULL
)
4912 *out
= s
->clienthello
->random
;
4913 return SSL3_RANDOM_SIZE
;
4916 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
4918 if (s
->clienthello
== NULL
)
4921 *out
= s
->clienthello
->session_id
;
4922 return s
->clienthello
->session_id_len
;
4925 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
4927 if (s
->clienthello
== NULL
)
4930 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
4931 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
4934 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
4936 if (s
->clienthello
== NULL
)
4939 *out
= s
->clienthello
->compressions
;
4940 return s
->clienthello
->compressions_len
;
4943 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
4949 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
4951 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4952 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4956 if ((present
= OPENSSL_malloc(sizeof(*present
) * num
)) == NULL
) {
4957 SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT
,
4958 ERR_R_MALLOC_FAILURE
);
4961 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4962 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4964 if (ext
->received_order
>= num
)
4966 present
[ext
->received_order
] = ext
->type
;
4973 OPENSSL_free(present
);
4977 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
4983 if (s
->clienthello
== NULL
)
4985 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
4986 r
= s
->clienthello
->pre_proc_exts
+ i
;
4987 if (r
->present
&& r
->type
== type
) {
4989 *out
= PACKET_data(&r
->data
);
4991 *outlen
= PACKET_remaining(&r
->data
);
4998 int SSL_free_buffers(SSL
*ssl
)
5000 RECORD_LAYER
*rl
= &ssl
->rlayer
;
5002 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
5005 RECORD_LAYER_release(rl
);
5009 int SSL_alloc_buffers(SSL
*ssl
)
5011 return ssl3_setup_buffers(ssl
);
5014 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
5016 ctx
->keylog_callback
= cb
;
5019 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
5021 return ctx
->keylog_callback
;
5024 static int nss_keylog_int(const char *prefix
,
5026 const uint8_t *parameter_1
,
5027 size_t parameter_1_len
,
5028 const uint8_t *parameter_2
,
5029 size_t parameter_2_len
)
5032 char *cursor
= NULL
;
5037 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
5040 * Our output buffer will contain the following strings, rendered with
5041 * space characters in between, terminated by a NULL character: first the
5042 * prefix, then the first parameter, then the second parameter. The
5043 * meaning of each parameter depends on the specific key material being
5044 * logged. Note that the first and second parameters are encoded in
5045 * hexadecimal, so we need a buffer that is twice their lengths.
5047 prefix_len
= strlen(prefix
);
5048 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
5049 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5050 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5051 ERR_R_MALLOC_FAILURE
);
5055 strcpy(cursor
, prefix
);
5056 cursor
+= prefix_len
;
5059 for (i
= 0; i
< parameter_1_len
; i
++) {
5060 sprintf(cursor
, "%02x", parameter_1
[i
]);
5065 for (i
= 0; i
< parameter_2_len
; i
++) {
5066 sprintf(cursor
, "%02x", parameter_2
[i
]);
5071 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5077 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5078 const uint8_t *encrypted_premaster
,
5079 size_t encrypted_premaster_len
,
5080 const uint8_t *premaster
,
5081 size_t premaster_len
)
5083 if (encrypted_premaster_len
< 8) {
5084 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5085 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5089 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5090 return nss_keylog_int("RSA",
5092 encrypted_premaster
,
5098 int ssl_log_secret(SSL
*ssl
,
5100 const uint8_t *secret
,
5103 return nss_keylog_int(label
,
5105 ssl
->s3
->client_random
,
5111 #define SSLV2_CIPHER_LEN 3
5113 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5117 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5119 if (PACKET_remaining(cipher_suites
) == 0) {
5120 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5121 SSL_R_NO_CIPHERS_SPECIFIED
);
5125 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5126 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5127 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5131 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5132 s
->s3
->tmp
.ciphers_raw
= NULL
;
5133 s
->s3
->tmp
.ciphers_rawlen
= 0;
5136 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5137 PACKET sslv2ciphers
= *cipher_suites
;
5138 unsigned int leadbyte
;
5142 * We store the raw ciphers list in SSLv3+ format so we need to do some
5143 * preprocessing to convert the list first. If there are any SSLv2 only
5144 * ciphersuites with a non-zero leading byte then we are going to
5145 * slightly over allocate because we won't store those. But that isn't a
5148 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5149 s
->s3
->tmp
.ciphers_raw
= raw
;
5151 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5152 ERR_R_MALLOC_FAILURE
);
5155 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
5156 PACKET_remaining(&sslv2ciphers
) > 0;
5157 raw
+= TLS_CIPHER_LEN
) {
5158 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5160 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5163 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5164 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5166 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5167 s
->s3
->tmp
.ciphers_raw
= NULL
;
5168 s
->s3
->tmp
.ciphers_rawlen
= 0;
5172 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5174 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
5175 &s
->s3
->tmp
.ciphers_rawlen
)) {
5176 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5177 ERR_R_INTERNAL_ERROR
);
5183 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5184 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5185 STACK_OF(SSL_CIPHER
) **scsvs
)
5189 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5191 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5194 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5195 STACK_OF(SSL_CIPHER
) **skp
,
5196 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5197 int sslv2format
, int fatal
)
5199 const SSL_CIPHER
*c
;
5200 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5201 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5203 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5204 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5206 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5208 if (PACKET_remaining(cipher_suites
) == 0) {
5210 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5211 SSL_R_NO_CIPHERS_SPECIFIED
);
5213 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5217 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5219 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5220 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5222 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5223 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5227 sk
= sk_SSL_CIPHER_new_null();
5228 scsvs
= sk_SSL_CIPHER_new_null();
5229 if (sk
== NULL
|| scsvs
== NULL
) {
5231 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5232 ERR_R_MALLOC_FAILURE
);
5234 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5238 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5240 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5241 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5242 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5244 if (sslv2format
&& cipher
[0] != '\0')
5247 /* For SSLv2-compat, ignore leading 0-byte. */
5248 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5250 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5251 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5253 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5254 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5256 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5261 if (PACKET_remaining(cipher_suites
) > 0) {
5263 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5266 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5273 sk_SSL_CIPHER_free(sk
);
5274 if (scsvs_out
!= NULL
)
5277 sk_SSL_CIPHER_free(scsvs
);
5280 sk_SSL_CIPHER_free(sk
);
5281 sk_SSL_CIPHER_free(scsvs
);
5285 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5287 ctx
->max_early_data
= max_early_data
;
5292 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5294 return ctx
->max_early_data
;
5297 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5299 s
->max_early_data
= max_early_data
;
5304 uint32_t SSL_get_max_early_data(const SSL
*s
)
5306 return s
->max_early_data
;
5309 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5311 /* Return any active Max Fragment Len extension */
5312 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5313 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5315 /* return current SSL connection setting */
5316 return ssl
->max_send_fragment
;
5319 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5321 /* Return a value regarding an active Max Fragment Len extension */
5322 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5323 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5324 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5326 /* else limit |split_send_fragment| to current |max_send_fragment| */
5327 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5328 return ssl
->max_send_fragment
;
5330 /* return current SSL connection setting */
5331 return ssl
->split_send_fragment
;
5334 int SSL_stateless(SSL
*s
)
5338 /* Ensure there is no state left over from a previous invocation */
5344 s
->s3
->flags
|= TLS1_FLAGS_STATELESS
;
5345 ret
= SSL_accept(s
);
5346 s
->s3
->flags
&= ~TLS1_FLAGS_STATELESS
;
5348 if (ret
> 0 && s
->ext
.cookieok
)
5351 if (s
->hello_retry_request
== SSL_HRR_PENDING
&& !ossl_statem_in_error(s
))
5357 void SSL_force_post_handshake_auth(SSL
*ssl
)
5359 ssl
->pha_forced
= 1;
5362 int SSL_verify_client_post_handshake(SSL
*ssl
)
5364 if (!SSL_IS_TLS13(ssl
)) {
5365 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5369 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5373 if (!SSL_is_init_finished(ssl
)) {
5374 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5378 switch (ssl
->post_handshake_auth
) {
5380 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5383 case SSL_PHA_EXT_SENT
:
5384 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5386 case SSL_PHA_EXT_RECEIVED
:
5388 case SSL_PHA_REQUEST_PENDING
:
5389 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5391 case SSL_PHA_REQUESTED
:
5392 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5396 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5398 /* checks verify_mode and algorithm_auth */
5399 if (!send_certificate_request(ssl
)) {
5400 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5401 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5405 ossl_statem_set_in_init(ssl
, 1);
5409 int SSL_CTX_set_session_ticket_cb(SSL_CTX
*ctx
,
5410 SSL_CTX_generate_session_ticket_fn gen_cb
,
5411 SSL_CTX_decrypt_session_ticket_fn dec_cb
,
5414 ctx
->generate_ticket_cb
= gen_cb
;
5415 ctx
->decrypt_ticket_cb
= dec_cb
;
5416 ctx
->ticket_cb_data
= arg
;