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/ocsp.h>
18 #include <openssl/dh.h>
19 #include <openssl/engine.h>
20 #include <openssl/async.h>
21 #include <openssl/ct.h>
22 #include "internal/cryptlib.h"
23 #include "internal/rand.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
, &(ctx
->cipher_list
),
657 &(ctx
->cipher_list_by_id
),
658 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
659 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
660 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
666 SSL
*SSL_new(SSL_CTX
*ctx
)
671 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
674 if (ctx
->method
== NULL
) {
675 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
679 s
= OPENSSL_zalloc(sizeof(*s
));
684 s
->lock
= CRYPTO_THREAD_lock_new();
685 if (s
->lock
== NULL
) {
692 * If not using the standard RAND (say for fuzzing), then don't use a
695 if (RAND_get_rand_method() == RAND_OpenSSL()) {
697 RAND_DRBG_new(RAND_DRBG_NID
, 0, RAND_DRBG_get0_public());
699 || RAND_DRBG_instantiate(s
->drbg
,
700 (const unsigned char *) SSL_version_str
,
701 sizeof(SSL_version_str
) - 1) == 0)
705 RECORD_LAYER_init(&s
->rlayer
, s
);
707 s
->options
= ctx
->options
;
708 s
->dane
.flags
= ctx
->dane
.flags
;
709 s
->min_proto_version
= ctx
->min_proto_version
;
710 s
->max_proto_version
= ctx
->max_proto_version
;
712 s
->max_cert_list
= ctx
->max_cert_list
;
713 s
->max_early_data
= ctx
->max_early_data
;
716 * Earlier library versions used to copy the pointer to the CERT, not
717 * its contents; only when setting new parameters for the per-SSL
718 * copy, ssl_cert_new would be called (and the direct reference to
719 * the per-SSL_CTX settings would be lost, but those still were
720 * indirectly accessed for various purposes, and for that reason they
721 * used to be known as s->ctx->default_cert). Now we don't look at the
722 * SSL_CTX's CERT after having duplicated it once.
724 s
->cert
= ssl_cert_dup(ctx
->cert
);
728 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
729 s
->msg_callback
= ctx
->msg_callback
;
730 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
731 s
->verify_mode
= ctx
->verify_mode
;
732 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
733 s
->record_padding_cb
= ctx
->record_padding_cb
;
734 s
->record_padding_arg
= ctx
->record_padding_arg
;
735 s
->block_padding
= ctx
->block_padding
;
736 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
737 if (!ossl_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
)))
739 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
740 s
->verify_callback
= ctx
->default_verify_callback
;
741 s
->generate_session_id
= ctx
->generate_session_id
;
743 s
->param
= X509_VERIFY_PARAM_new();
744 if (s
->param
== NULL
)
746 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
747 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
749 s
->ext
.max_fragment_len_mode
= ctx
->ext
.max_fragment_len_mode
;
750 s
->max_send_fragment
= ctx
->max_send_fragment
;
751 s
->split_send_fragment
= ctx
->split_send_fragment
;
752 s
->max_pipelines
= ctx
->max_pipelines
;
753 if (s
->max_pipelines
> 1)
754 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
755 if (ctx
->default_read_buf_len
> 0)
756 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
761 s
->ext
.debug_arg
= NULL
;
762 s
->ext
.ticket_expected
= 0;
763 s
->ext
.status_type
= ctx
->ext
.status_type
;
764 s
->ext
.status_expected
= 0;
765 s
->ext
.ocsp
.ids
= NULL
;
766 s
->ext
.ocsp
.exts
= NULL
;
767 s
->ext
.ocsp
.resp
= NULL
;
768 s
->ext
.ocsp
.resp_len
= 0;
770 s
->session_ctx
= ctx
;
771 #ifndef OPENSSL_NO_EC
772 if (ctx
->ext
.ecpointformats
) {
773 s
->ext
.ecpointformats
=
774 OPENSSL_memdup(ctx
->ext
.ecpointformats
,
775 ctx
->ext
.ecpointformats_len
);
776 if (!s
->ext
.ecpointformats
)
778 s
->ext
.ecpointformats_len
=
779 ctx
->ext
.ecpointformats_len
;
781 if (ctx
->ext
.supportedgroups
) {
782 s
->ext
.supportedgroups
=
783 OPENSSL_memdup(ctx
->ext
.supportedgroups
,
784 ctx
->ext
.supportedgroups_len
785 * sizeof(*ctx
->ext
.supportedgroups
));
786 if (!s
->ext
.supportedgroups
)
788 s
->ext
.supportedgroups_len
= ctx
->ext
.supportedgroups_len
;
791 #ifndef OPENSSL_NO_NEXTPROTONEG
795 if (s
->ctx
->ext
.alpn
) {
796 s
->ext
.alpn
= OPENSSL_malloc(s
->ctx
->ext
.alpn_len
);
797 if (s
->ext
.alpn
== NULL
)
799 memcpy(s
->ext
.alpn
, s
->ctx
->ext
.alpn
, s
->ctx
->ext
.alpn_len
);
800 s
->ext
.alpn_len
= s
->ctx
->ext
.alpn_len
;
803 s
->verified_chain
= NULL
;
804 s
->verify_result
= X509_V_OK
;
806 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
807 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
809 s
->method
= ctx
->method
;
811 s
->key_update
= SSL_KEY_UPDATE_NONE
;
813 if (!s
->method
->ssl_new(s
))
816 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
821 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
))
824 #ifndef OPENSSL_NO_PSK
825 s
->psk_client_callback
= ctx
->psk_client_callback
;
826 s
->psk_server_callback
= ctx
->psk_server_callback
;
828 s
->psk_find_session_cb
= ctx
->psk_find_session_cb
;
829 s
->psk_use_session_cb
= ctx
->psk_use_session_cb
;
833 #ifndef OPENSSL_NO_CT
834 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
835 ctx
->ct_validation_callback_arg
))
842 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
846 int SSL_is_dtls(const SSL
*s
)
848 return SSL_IS_DTLS(s
) ? 1 : 0;
851 int SSL_up_ref(SSL
*s
)
855 if (CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
) <= 0)
858 REF_PRINT_COUNT("SSL", s
);
859 REF_ASSERT_ISNT(i
< 2);
860 return ((i
> 1) ? 1 : 0);
863 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
864 unsigned int sid_ctx_len
)
866 if (sid_ctx_len
> sizeof(ctx
->sid_ctx
)) {
867 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
868 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
871 ctx
->sid_ctx_length
= sid_ctx_len
;
872 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
877 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
878 unsigned int sid_ctx_len
)
880 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
881 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
882 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
885 ssl
->sid_ctx_length
= sid_ctx_len
;
886 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
891 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
893 CRYPTO_THREAD_write_lock(ctx
->lock
);
894 ctx
->generate_session_id
= cb
;
895 CRYPTO_THREAD_unlock(ctx
->lock
);
899 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
901 CRYPTO_THREAD_write_lock(ssl
->lock
);
902 ssl
->generate_session_id
= cb
;
903 CRYPTO_THREAD_unlock(ssl
->lock
);
907 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
911 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
912 * we can "construct" a session to give us the desired check - i.e. to
913 * find if there's a session in the hash table that would conflict with
914 * any new session built out of this id/id_len and the ssl_version in use
919 if (id_len
> sizeof(r
.session_id
))
922 r
.ssl_version
= ssl
->version
;
923 r
.session_id_length
= id_len
;
924 memcpy(r
.session_id
, id
, id_len
);
926 CRYPTO_THREAD_read_lock(ssl
->session_ctx
->lock
);
927 p
= lh_SSL_SESSION_retrieve(ssl
->session_ctx
->sessions
, &r
);
928 CRYPTO_THREAD_unlock(ssl
->session_ctx
->lock
);
932 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
934 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
937 int SSL_set_purpose(SSL
*s
, int purpose
)
939 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
942 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
944 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
947 int SSL_set_trust(SSL
*s
, int trust
)
949 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
952 int SSL_set1_host(SSL
*s
, const char *hostname
)
954 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
957 int SSL_add1_host(SSL
*s
, const char *hostname
)
959 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
962 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
964 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
967 const char *SSL_get0_peername(SSL
*s
)
969 return X509_VERIFY_PARAM_get0_peername(s
->param
);
972 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
974 return dane_ctx_enable(&ctx
->dane
);
977 unsigned long SSL_CTX_dane_set_flags(SSL_CTX
*ctx
, unsigned long flags
)
979 unsigned long orig
= ctx
->dane
.flags
;
981 ctx
->dane
.flags
|= flags
;
985 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX
*ctx
, unsigned long flags
)
987 unsigned long orig
= ctx
->dane
.flags
;
989 ctx
->dane
.flags
&= ~flags
;
993 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
995 SSL_DANE
*dane
= &s
->dane
;
997 if (s
->ctx
->dane
.mdmax
== 0) {
998 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
1001 if (dane
->trecs
!= NULL
) {
1002 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
1007 * Default SNI name. This rejects empty names, while set1_host below
1008 * accepts them and disables host name checks. To avoid side-effects with
1009 * invalid input, set the SNI name first.
1011 if (s
->ext
.hostname
== NULL
) {
1012 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
1013 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1018 /* Primary RFC6125 reference identifier */
1019 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
1020 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
1026 dane
->dctx
= &s
->ctx
->dane
;
1027 dane
->trecs
= sk_danetls_record_new_null();
1029 if (dane
->trecs
== NULL
) {
1030 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
1036 unsigned long SSL_dane_set_flags(SSL
*ssl
, unsigned long flags
)
1038 unsigned long orig
= ssl
->dane
.flags
;
1040 ssl
->dane
.flags
|= flags
;
1044 unsigned long SSL_dane_clear_flags(SSL
*ssl
, unsigned long flags
)
1046 unsigned long orig
= ssl
->dane
.flags
;
1048 ssl
->dane
.flags
&= ~flags
;
1052 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
1054 SSL_DANE
*dane
= &s
->dane
;
1056 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1060 *mcert
= dane
->mcert
;
1062 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
1067 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
1068 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
1070 SSL_DANE
*dane
= &s
->dane
;
1072 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
1076 *usage
= dane
->mtlsa
->usage
;
1078 *selector
= dane
->mtlsa
->selector
;
1080 *mtype
= dane
->mtlsa
->mtype
;
1082 *data
= dane
->mtlsa
->data
;
1084 *dlen
= dane
->mtlsa
->dlen
;
1089 SSL_DANE
*SSL_get0_dane(SSL
*s
)
1094 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
1095 uint8_t mtype
, unsigned const char *data
, size_t dlen
)
1097 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
1100 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
,
1103 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
1106 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
1108 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
1111 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
1113 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
1116 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1121 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1126 void SSL_certs_clear(SSL
*s
)
1128 ssl_cert_clear_certs(s
->cert
);
1131 void SSL_free(SSL
*s
)
1138 CRYPTO_DOWN_REF(&s
->references
, &i
, s
->lock
);
1139 REF_PRINT_COUNT("SSL", s
);
1142 REF_ASSERT_ISNT(i
< 0);
1144 X509_VERIFY_PARAM_free(s
->param
);
1145 dane_final(&s
->dane
);
1146 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1148 /* Ignore return value */
1149 ssl_free_wbio_buffer(s
);
1151 BIO_free_all(s
->wbio
);
1152 BIO_free_all(s
->rbio
);
1154 BUF_MEM_free(s
->init_buf
);
1156 /* add extra stuff */
1157 sk_SSL_CIPHER_free(s
->cipher_list
);
1158 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1160 /* Make the next call work :-) */
1161 if (s
->session
!= NULL
) {
1162 ssl_clear_bad_session(s
);
1163 SSL_SESSION_free(s
->session
);
1165 SSL_SESSION_free(s
->psksession
);
1166 OPENSSL_free(s
->psksession_id
);
1170 ssl_cert_free(s
->cert
);
1171 /* Free up if allocated */
1173 OPENSSL_free(s
->ext
.hostname
);
1174 SSL_CTX_free(s
->session_ctx
);
1175 #ifndef OPENSSL_NO_EC
1176 OPENSSL_free(s
->ext
.ecpointformats
);
1177 OPENSSL_free(s
->ext
.supportedgroups
);
1178 #endif /* OPENSSL_NO_EC */
1179 sk_X509_EXTENSION_pop_free(s
->ext
.ocsp
.exts
, X509_EXTENSION_free
);
1180 #ifndef OPENSSL_NO_OCSP
1181 sk_OCSP_RESPID_pop_free(s
->ext
.ocsp
.ids
, OCSP_RESPID_free
);
1183 #ifndef OPENSSL_NO_CT
1184 SCT_LIST_free(s
->scts
);
1185 OPENSSL_free(s
->ext
.scts
);
1187 OPENSSL_free(s
->ext
.ocsp
.resp
);
1188 OPENSSL_free(s
->ext
.alpn
);
1189 OPENSSL_free(s
->ext
.tls13_cookie
);
1190 OPENSSL_free(s
->clienthello
);
1191 OPENSSL_free(s
->pha_context
);
1192 EVP_MD_CTX_free(s
->pha_dgst
);
1194 sk_X509_NAME_pop_free(s
->ca_names
, X509_NAME_free
);
1196 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1198 if (s
->method
!= NULL
)
1199 s
->method
->ssl_free(s
);
1201 RECORD_LAYER_release(&s
->rlayer
);
1203 SSL_CTX_free(s
->ctx
);
1205 ASYNC_WAIT_CTX_free(s
->waitctx
);
1207 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1208 OPENSSL_free(s
->ext
.npn
);
1211 #ifndef OPENSSL_NO_SRTP
1212 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1215 RAND_DRBG_free(s
->drbg
);
1216 CRYPTO_THREAD_lock_free(s
->lock
);
1221 void SSL_set0_rbio(SSL
*s
, BIO
*rbio
)
1223 BIO_free_all(s
->rbio
);
1227 void SSL_set0_wbio(SSL
*s
, BIO
*wbio
)
1230 * If the output buffering BIO is still in place, remove it
1232 if (s
->bbio
!= NULL
)
1233 s
->wbio
= BIO_pop(s
->wbio
);
1235 BIO_free_all(s
->wbio
);
1238 /* Re-attach |bbio| to the new |wbio|. */
1239 if (s
->bbio
!= NULL
)
1240 s
->wbio
= BIO_push(s
->bbio
, s
->wbio
);
1243 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1246 * For historical reasons, this function has many different cases in
1247 * ownership handling.
1250 /* If nothing has changed, do nothing */
1251 if (rbio
== SSL_get_rbio(s
) && wbio
== SSL_get_wbio(s
))
1255 * If the two arguments are equal then one fewer reference is granted by the
1256 * caller than we want to take
1258 if (rbio
!= NULL
&& rbio
== wbio
)
1262 * If only the wbio is changed only adopt one reference.
1264 if (rbio
== SSL_get_rbio(s
)) {
1265 SSL_set0_wbio(s
, wbio
);
1269 * There is an asymmetry here for historical reasons. If only the rbio is
1270 * changed AND the rbio and wbio were originally different, then we only
1271 * adopt one reference.
1273 if (wbio
== SSL_get_wbio(s
) && SSL_get_rbio(s
) != SSL_get_wbio(s
)) {
1274 SSL_set0_rbio(s
, rbio
);
1278 /* Otherwise, adopt both references. */
1279 SSL_set0_rbio(s
, rbio
);
1280 SSL_set0_wbio(s
, wbio
);
1283 BIO
*SSL_get_rbio(const SSL
*s
)
1288 BIO
*SSL_get_wbio(const SSL
*s
)
1290 if (s
->bbio
!= NULL
) {
1292 * If |bbio| is active, the true caller-configured BIO is its
1295 return BIO_next(s
->bbio
);
1300 int SSL_get_fd(const SSL
*s
)
1302 return SSL_get_rfd(s
);
1305 int SSL_get_rfd(const SSL
*s
)
1310 b
= SSL_get_rbio(s
);
1311 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1313 BIO_get_fd(r
, &ret
);
1317 int SSL_get_wfd(const SSL
*s
)
1322 b
= SSL_get_wbio(s
);
1323 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1325 BIO_get_fd(r
, &ret
);
1329 #ifndef OPENSSL_NO_SOCK
1330 int SSL_set_fd(SSL
*s
, int fd
)
1335 bio
= BIO_new(BIO_s_socket());
1338 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1341 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1342 SSL_set_bio(s
, bio
, bio
);
1348 int SSL_set_wfd(SSL
*s
, int fd
)
1350 BIO
*rbio
= SSL_get_rbio(s
);
1352 if (rbio
== NULL
|| BIO_method_type(rbio
) != BIO_TYPE_SOCKET
1353 || (int)BIO_get_fd(rbio
, NULL
) != fd
) {
1354 BIO
*bio
= BIO_new(BIO_s_socket());
1357 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1360 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1361 SSL_set0_wbio(s
, bio
);
1364 SSL_set0_wbio(s
, rbio
);
1369 int SSL_set_rfd(SSL
*s
, int fd
)
1371 BIO
*wbio
= SSL_get_wbio(s
);
1373 if (wbio
== NULL
|| BIO_method_type(wbio
) != BIO_TYPE_SOCKET
1374 || ((int)BIO_get_fd(wbio
, NULL
) != fd
)) {
1375 BIO
*bio
= BIO_new(BIO_s_socket());
1378 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1381 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1382 SSL_set0_rbio(s
, bio
);
1385 SSL_set0_rbio(s
, wbio
);
1392 /* return length of latest Finished message we sent, copy to 'buf' */
1393 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1397 if (s
->s3
!= NULL
) {
1398 ret
= s
->s3
->tmp
.finish_md_len
;
1401 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1406 /* return length of latest Finished message we expected, copy to 'buf' */
1407 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1411 if (s
->s3
!= NULL
) {
1412 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1415 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1420 int SSL_get_verify_mode(const SSL
*s
)
1422 return s
->verify_mode
;
1425 int SSL_get_verify_depth(const SSL
*s
)
1427 return X509_VERIFY_PARAM_get_depth(s
->param
);
1430 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1431 return s
->verify_callback
;
1434 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1436 return ctx
->verify_mode
;
1439 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1441 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1444 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1445 return ctx
->default_verify_callback
;
1448 void SSL_set_verify(SSL
*s
, int mode
,
1449 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1451 s
->verify_mode
= mode
;
1452 if (callback
!= NULL
)
1453 s
->verify_callback
= callback
;
1456 void SSL_set_verify_depth(SSL
*s
, int depth
)
1458 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1461 void SSL_set_read_ahead(SSL
*s
, int yes
)
1463 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1466 int SSL_get_read_ahead(const SSL
*s
)
1468 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1471 int SSL_pending(const SSL
*s
)
1473 size_t pending
= s
->method
->ssl_pending(s
);
1476 * SSL_pending cannot work properly if read-ahead is enabled
1477 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1478 * impossible to fix since SSL_pending cannot report errors that may be
1479 * observed while scanning the new data. (Note that SSL_pending() is
1480 * often used as a boolean value, so we'd better not return -1.)
1482 * SSL_pending also cannot work properly if the value >INT_MAX. In that case
1483 * we just return INT_MAX.
1485 return pending
< INT_MAX
? (int)pending
: INT_MAX
;
1488 int SSL_has_pending(const SSL
*s
)
1491 * Similar to SSL_pending() but returns a 1 to indicate that we have
1492 * unprocessed data available or 0 otherwise (as opposed to the number of
1493 * bytes available). Unlike SSL_pending() this will take into account
1494 * read_ahead data. A 1 return simply indicates that we have unprocessed
1495 * data. That data may not result in any application data, or we may fail
1496 * to parse the records for some reason.
1498 if (RECORD_LAYER_processed_read_pending(&s
->rlayer
))
1501 return RECORD_LAYER_read_pending(&s
->rlayer
);
1504 X509
*SSL_get_peer_certificate(const SSL
*s
)
1508 if ((s
== NULL
) || (s
->session
== NULL
))
1511 r
= s
->session
->peer
;
1521 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1525 if ((s
== NULL
) || (s
->session
== NULL
))
1528 r
= s
->session
->peer_chain
;
1531 * If we are a client, cert_chain includes the peer's own certificate; if
1532 * we are a server, it does not.
1539 * Now in theory, since the calling process own 't' it should be safe to
1540 * modify. We need to be able to read f without being hassled
1542 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1545 /* Do we need to to SSL locking? */
1546 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1551 * what if we are setup for one protocol version but want to talk another
1553 if (t
->method
!= f
->method
) {
1554 t
->method
->ssl_free(t
);
1555 t
->method
= f
->method
;
1556 if (t
->method
->ssl_new(t
) == 0)
1560 CRYPTO_UP_REF(&f
->cert
->references
, &i
, f
->cert
->lock
);
1561 ssl_cert_free(t
->cert
);
1563 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, (int)f
->sid_ctx_length
)) {
1570 /* Fix this so it checks all the valid key/cert options */
1571 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1573 if ((ctx
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
1574 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1577 if (ctx
->cert
->key
->privatekey
== NULL
) {
1578 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1581 return X509_check_private_key
1582 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
);
1585 /* Fix this function so that it takes an optional type parameter */
1586 int SSL_check_private_key(const SSL
*ssl
)
1589 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1592 if (ssl
->cert
->key
->x509
== NULL
) {
1593 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1596 if (ssl
->cert
->key
->privatekey
== NULL
) {
1597 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1600 return X509_check_private_key(ssl
->cert
->key
->x509
,
1601 ssl
->cert
->key
->privatekey
);
1604 int SSL_waiting_for_async(SSL
*s
)
1612 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1614 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1618 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1621 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1622 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1624 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1628 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1632 int SSL_accept(SSL
*s
)
1634 if (s
->handshake_func
== NULL
) {
1635 /* Not properly initialized yet */
1636 SSL_set_accept_state(s
);
1639 return SSL_do_handshake(s
);
1642 int SSL_connect(SSL
*s
)
1644 if (s
->handshake_func
== NULL
) {
1645 /* Not properly initialized yet */
1646 SSL_set_connect_state(s
);
1649 return SSL_do_handshake(s
);
1652 long SSL_get_default_timeout(const SSL
*s
)
1654 return s
->method
->get_timeout();
1657 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1658 int (*func
) (void *))
1661 if (s
->waitctx
== NULL
) {
1662 s
->waitctx
= ASYNC_WAIT_CTX_new();
1663 if (s
->waitctx
== NULL
)
1666 switch (ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1667 sizeof(struct ssl_async_args
))) {
1669 s
->rwstate
= SSL_NOTHING
;
1670 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1673 s
->rwstate
= SSL_ASYNC_PAUSED
;
1676 s
->rwstate
= SSL_ASYNC_NO_JOBS
;
1682 s
->rwstate
= SSL_NOTHING
;
1683 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1684 /* Shouldn't happen */
1689 static int ssl_io_intern(void *vargs
)
1691 struct ssl_async_args
*args
;
1696 args
= (struct ssl_async_args
*)vargs
;
1700 switch (args
->type
) {
1702 return args
->f
.func_read(s
, buf
, num
, &s
->asyncrw
);
1704 return args
->f
.func_write(s
, buf
, num
, &s
->asyncrw
);
1706 return args
->f
.func_other(s
);
1711 int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1713 if (s
->handshake_func
== NULL
) {
1714 SSLerr(SSL_F_SSL_READ_INTERNAL
, SSL_R_UNINITIALIZED
);
1718 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1719 s
->rwstate
= SSL_NOTHING
;
1723 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1724 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
) {
1725 SSLerr(SSL_F_SSL_READ_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1729 * If we are a client and haven't received the ServerHello etc then we
1732 ossl_statem_check_finish_init(s
, 0);
1734 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1735 struct ssl_async_args args
;
1741 args
.type
= READFUNC
;
1742 args
.f
.func_read
= s
->method
->ssl_read
;
1744 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1745 *readbytes
= s
->asyncrw
;
1748 return s
->method
->ssl_read(s
, buf
, num
, readbytes
);
1752 int SSL_read(SSL
*s
, void *buf
, int num
)
1758 SSLerr(SSL_F_SSL_READ
, SSL_R_BAD_LENGTH
);
1762 ret
= ssl_read_internal(s
, buf
, (size_t)num
, &readbytes
);
1765 * The cast is safe here because ret should be <= INT_MAX because num is
1769 ret
= (int)readbytes
;
1774 int SSL_read_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1776 int ret
= ssl_read_internal(s
, buf
, num
, readbytes
);
1783 int SSL_read_early_data(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1788 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1789 return SSL_READ_EARLY_DATA_ERROR
;
1792 switch (s
->early_data_state
) {
1793 case SSL_EARLY_DATA_NONE
:
1794 if (!SSL_in_before(s
)) {
1795 SSLerr(SSL_F_SSL_READ_EARLY_DATA
,
1796 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1797 return SSL_READ_EARLY_DATA_ERROR
;
1801 case SSL_EARLY_DATA_ACCEPT_RETRY
:
1802 s
->early_data_state
= SSL_EARLY_DATA_ACCEPTING
;
1803 ret
= SSL_accept(s
);
1806 s
->early_data_state
= SSL_EARLY_DATA_ACCEPT_RETRY
;
1807 return SSL_READ_EARLY_DATA_ERROR
;
1811 case SSL_EARLY_DATA_READ_RETRY
:
1812 if (s
->ext
.early_data
== SSL_EARLY_DATA_ACCEPTED
) {
1813 s
->early_data_state
= SSL_EARLY_DATA_READING
;
1814 ret
= SSL_read_ex(s
, buf
, num
, readbytes
);
1816 * State machine will update early_data_state to
1817 * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData
1820 if (ret
> 0 || (ret
<= 0 && s
->early_data_state
1821 != SSL_EARLY_DATA_FINISHED_READING
)) {
1822 s
->early_data_state
= SSL_EARLY_DATA_READ_RETRY
;
1823 return ret
> 0 ? SSL_READ_EARLY_DATA_SUCCESS
1824 : SSL_READ_EARLY_DATA_ERROR
;
1827 s
->early_data_state
= SSL_EARLY_DATA_FINISHED_READING
;
1830 return SSL_READ_EARLY_DATA_FINISH
;
1833 SSLerr(SSL_F_SSL_READ_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1834 return SSL_READ_EARLY_DATA_ERROR
;
1838 int SSL_get_early_data_status(const SSL
*s
)
1840 return s
->ext
.early_data
;
1843 static int ssl_peek_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1845 if (s
->handshake_func
== NULL
) {
1846 SSLerr(SSL_F_SSL_PEEK_INTERNAL
, SSL_R_UNINITIALIZED
);
1850 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1853 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1854 struct ssl_async_args args
;
1860 args
.type
= READFUNC
;
1861 args
.f
.func_read
= s
->method
->ssl_peek
;
1863 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1864 *readbytes
= s
->asyncrw
;
1867 return s
->method
->ssl_peek(s
, buf
, num
, readbytes
);
1871 int SSL_peek(SSL
*s
, void *buf
, int num
)
1877 SSLerr(SSL_F_SSL_PEEK
, SSL_R_BAD_LENGTH
);
1881 ret
= ssl_peek_internal(s
, buf
, (size_t)num
, &readbytes
);
1884 * The cast is safe here because ret should be <= INT_MAX because num is
1888 ret
= (int)readbytes
;
1894 int SSL_peek_ex(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
)
1896 int ret
= ssl_peek_internal(s
, buf
, num
, readbytes
);
1903 int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1905 if (s
->handshake_func
== NULL
) {
1906 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_UNINITIALIZED
);
1910 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1911 s
->rwstate
= SSL_NOTHING
;
1912 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1916 if (s
->early_data_state
== SSL_EARLY_DATA_CONNECT_RETRY
1917 || s
->early_data_state
== SSL_EARLY_DATA_ACCEPT_RETRY
1918 || s
->early_data_state
== SSL_EARLY_DATA_READ_RETRY
) {
1919 SSLerr(SSL_F_SSL_WRITE_INTERNAL
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1922 /* If we are a client and haven't sent the Finished we better do that */
1923 ossl_statem_check_finish_init(s
, 1);
1925 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1927 struct ssl_async_args args
;
1930 args
.buf
= (void *)buf
;
1932 args
.type
= WRITEFUNC
;
1933 args
.f
.func_write
= s
->method
->ssl_write
;
1935 ret
= ssl_start_async_job(s
, &args
, ssl_io_intern
);
1936 *written
= s
->asyncrw
;
1939 return s
->method
->ssl_write(s
, buf
, num
, written
);
1943 int SSL_write(SSL
*s
, const void *buf
, int num
)
1949 SSLerr(SSL_F_SSL_WRITE
, SSL_R_BAD_LENGTH
);
1953 ret
= ssl_write_internal(s
, buf
, (size_t)num
, &written
);
1956 * The cast is safe here because ret should be <= INT_MAX because num is
1965 int SSL_write_ex(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1967 int ret
= ssl_write_internal(s
, buf
, num
, written
);
1974 int SSL_write_early_data(SSL
*s
, const void *buf
, size_t num
, size_t *written
)
1976 int ret
, early_data_state
;
1978 uint32_t partialwrite
;
1980 switch (s
->early_data_state
) {
1981 case SSL_EARLY_DATA_NONE
:
1983 || !SSL_in_before(s
)
1984 || ((s
->session
== NULL
|| s
->session
->ext
.max_early_data
== 0)
1985 && (s
->psk_use_session_cb
== NULL
))) {
1986 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
,
1987 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1992 case SSL_EARLY_DATA_CONNECT_RETRY
:
1993 s
->early_data_state
= SSL_EARLY_DATA_CONNECTING
;
1994 ret
= SSL_connect(s
);
1997 s
->early_data_state
= SSL_EARLY_DATA_CONNECT_RETRY
;
2002 case SSL_EARLY_DATA_WRITE_RETRY
:
2003 s
->early_data_state
= SSL_EARLY_DATA_WRITING
;
2005 * We disable partial write for early data because we don't keep track
2006 * of how many bytes we've written between the SSL_write_ex() call and
2007 * the flush if the flush needs to be retried)
2009 partialwrite
= s
->mode
& SSL_MODE_ENABLE_PARTIAL_WRITE
;
2010 s
->mode
&= ~SSL_MODE_ENABLE_PARTIAL_WRITE
;
2011 ret
= SSL_write_ex(s
, buf
, num
, &writtmp
);
2012 s
->mode
|= partialwrite
;
2014 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2017 s
->early_data_state
= SSL_EARLY_DATA_WRITE_FLUSH
;
2020 case SSL_EARLY_DATA_WRITE_FLUSH
:
2021 /* The buffering BIO is still in place so we need to flush it */
2022 if (statem_flush(s
) != 1)
2025 s
->early_data_state
= SSL_EARLY_DATA_WRITE_RETRY
;
2028 case SSL_EARLY_DATA_FINISHED_READING
:
2029 case SSL_EARLY_DATA_READ_RETRY
:
2030 early_data_state
= s
->early_data_state
;
2031 /* We are a server writing to an unauthenticated client */
2032 s
->early_data_state
= SSL_EARLY_DATA_UNAUTH_WRITING
;
2033 ret
= SSL_write_ex(s
, buf
, num
, written
);
2034 s
->early_data_state
= early_data_state
;
2038 SSLerr(SSL_F_SSL_WRITE_EARLY_DATA
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2043 int SSL_shutdown(SSL
*s
)
2046 * Note that this function behaves differently from what one might
2047 * expect. Return values are 0 for no success (yet), 1 for success; but
2048 * calling it once is usually not enough, even if blocking I/O is used
2049 * (see ssl3_shutdown).
2052 if (s
->handshake_func
== NULL
) {
2053 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
2057 if (!SSL_in_init(s
)) {
2058 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2059 struct ssl_async_args args
;
2062 args
.type
= OTHERFUNC
;
2063 args
.f
.func_other
= s
->method
->ssl_shutdown
;
2065 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
2067 return s
->method
->ssl_shutdown(s
);
2070 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
2075 int SSL_key_update(SSL
*s
, int updatetype
)
2078 * TODO(TLS1.3): How will applications know whether TLSv1.3 has been
2079 * negotiated, and that it is appropriate to call SSL_key_update() instead
2080 * of SSL_renegotiate().
2082 if (!SSL_IS_TLS13(s
)) {
2083 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_WRONG_SSL_VERSION
);
2087 if (updatetype
!= SSL_KEY_UPDATE_NOT_REQUESTED
2088 && updatetype
!= SSL_KEY_UPDATE_REQUESTED
) {
2089 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_INVALID_KEY_UPDATE_TYPE
);
2093 if (!SSL_is_init_finished(s
)) {
2094 SSLerr(SSL_F_SSL_KEY_UPDATE
, SSL_R_STILL_IN_INIT
);
2098 ossl_statem_set_in_init(s
, 1);
2099 s
->key_update
= updatetype
;
2103 int SSL_get_key_update_type(SSL
*s
)
2105 return s
->key_update
;
2108 int SSL_renegotiate(SSL
*s
)
2110 if (SSL_IS_TLS13(s
)) {
2111 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_WRONG_SSL_VERSION
);
2115 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2116 SSLerr(SSL_F_SSL_RENEGOTIATE
, SSL_R_NO_RENEGOTIATION
);
2123 return s
->method
->ssl_renegotiate(s
);
2126 int SSL_renegotiate_abbreviated(SSL
*s
)
2128 if (SSL_IS_TLS13(s
)) {
2129 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_WRONG_SSL_VERSION
);
2133 if ((s
->options
& SSL_OP_NO_RENEGOTIATION
)) {
2134 SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED
, SSL_R_NO_RENEGOTIATION
);
2141 return s
->method
->ssl_renegotiate(s
);
2144 int SSL_renegotiate_pending(SSL
*s
)
2147 * becomes true when negotiation is requested; false again once a
2148 * handshake has finished
2150 return (s
->renegotiate
!= 0);
2153 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
2158 case SSL_CTRL_GET_READ_AHEAD
:
2159 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2160 case SSL_CTRL_SET_READ_AHEAD
:
2161 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
2162 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
2165 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2166 s
->msg_callback_arg
= parg
;
2170 return (s
->mode
|= larg
);
2171 case SSL_CTRL_CLEAR_MODE
:
2172 return (s
->mode
&= ~larg
);
2173 case SSL_CTRL_GET_MAX_CERT_LIST
:
2174 return (long)s
->max_cert_list
;
2175 case SSL_CTRL_SET_MAX_CERT_LIST
:
2178 l
= (long)s
->max_cert_list
;
2179 s
->max_cert_list
= (size_t)larg
;
2181 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2182 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2184 s
->max_send_fragment
= larg
;
2185 if (s
->max_send_fragment
< s
->split_send_fragment
)
2186 s
->split_send_fragment
= s
->max_send_fragment
;
2188 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2189 if ((size_t)larg
> s
->max_send_fragment
|| larg
== 0)
2191 s
->split_send_fragment
= larg
;
2193 case SSL_CTRL_SET_MAX_PIPELINES
:
2194 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2196 s
->max_pipelines
= larg
;
2198 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
2200 case SSL_CTRL_GET_RI_SUPPORT
:
2202 return s
->s3
->send_connection_binding
;
2205 case SSL_CTRL_CERT_FLAGS
:
2206 return (s
->cert
->cert_flags
|= larg
);
2207 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2208 return (s
->cert
->cert_flags
&= ~larg
);
2210 case SSL_CTRL_GET_RAW_CIPHERLIST
:
2212 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
2214 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
2215 return (int)s
->s3
->tmp
.ciphers_rawlen
;
2217 return TLS_CIPHER_LEN
;
2219 case SSL_CTRL_GET_EXTMS_SUPPORT
:
2220 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
2222 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
2226 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2227 return ssl_check_allowed_versions(larg
, s
->max_proto_version
)
2228 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2229 &s
->min_proto_version
);
2230 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2231 return s
->min_proto_version
;
2232 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2233 return ssl_check_allowed_versions(s
->min_proto_version
, larg
)
2234 && ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
2235 &s
->max_proto_version
);
2236 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2237 return s
->max_proto_version
;
2239 return s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
);
2243 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
2246 case SSL_CTRL_SET_MSG_CALLBACK
:
2247 s
->msg_callback
= (void (*)
2248 (int write_p
, int version
, int content_type
,
2249 const void *buf
, size_t len
, SSL
*ssl
,
2254 return s
->method
->ssl_callback_ctrl(s
, cmd
, fp
);
2258 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
2260 return ctx
->sessions
;
2263 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
2267 /* For some cases with ctx == NULL perform syntax checks */
2270 #ifndef OPENSSL_NO_EC
2271 case SSL_CTRL_SET_GROUPS_LIST
:
2272 return tls1_set_groups_list(NULL
, NULL
, parg
);
2274 case SSL_CTRL_SET_SIGALGS_LIST
:
2275 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
2276 return tls1_set_sigalgs_list(NULL
, parg
, 0);
2283 case SSL_CTRL_GET_READ_AHEAD
:
2284 return ctx
->read_ahead
;
2285 case SSL_CTRL_SET_READ_AHEAD
:
2286 l
= ctx
->read_ahead
;
2287 ctx
->read_ahead
= larg
;
2290 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
2291 ctx
->msg_callback_arg
= parg
;
2294 case SSL_CTRL_GET_MAX_CERT_LIST
:
2295 return (long)ctx
->max_cert_list
;
2296 case SSL_CTRL_SET_MAX_CERT_LIST
:
2299 l
= (long)ctx
->max_cert_list
;
2300 ctx
->max_cert_list
= (size_t)larg
;
2303 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
2306 l
= (long)ctx
->session_cache_size
;
2307 ctx
->session_cache_size
= (size_t)larg
;
2309 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
2310 return (long)ctx
->session_cache_size
;
2311 case SSL_CTRL_SET_SESS_CACHE_MODE
:
2312 l
= ctx
->session_cache_mode
;
2313 ctx
->session_cache_mode
= larg
;
2315 case SSL_CTRL_GET_SESS_CACHE_MODE
:
2316 return ctx
->session_cache_mode
;
2318 case SSL_CTRL_SESS_NUMBER
:
2319 return lh_SSL_SESSION_num_items(ctx
->sessions
);
2320 case SSL_CTRL_SESS_CONNECT
:
2321 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect
, &i
, ctx
->lock
)
2323 case SSL_CTRL_SESS_CONNECT_GOOD
:
2324 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_good
, &i
, ctx
->lock
)
2326 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
2327 return CRYPTO_atomic_read(&ctx
->stats
.sess_connect_renegotiate
, &i
,
2330 case SSL_CTRL_SESS_ACCEPT
:
2331 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept
, &i
, ctx
->lock
)
2333 case SSL_CTRL_SESS_ACCEPT_GOOD
:
2334 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_good
, &i
, ctx
->lock
)
2336 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
2337 return CRYPTO_atomic_read(&ctx
->stats
.sess_accept_renegotiate
, &i
,
2340 case SSL_CTRL_SESS_HIT
:
2341 return CRYPTO_atomic_read(&ctx
->stats
.sess_hit
, &i
, ctx
->lock
)
2343 case SSL_CTRL_SESS_CB_HIT
:
2344 return CRYPTO_atomic_read(&ctx
->stats
.sess_cb_hit
, &i
, ctx
->lock
)
2346 case SSL_CTRL_SESS_MISSES
:
2347 return CRYPTO_atomic_read(&ctx
->stats
.sess_miss
, &i
, ctx
->lock
)
2349 case SSL_CTRL_SESS_TIMEOUTS
:
2350 return CRYPTO_atomic_read(&ctx
->stats
.sess_timeout
, &i
, ctx
->lock
)
2352 case SSL_CTRL_SESS_CACHE_FULL
:
2353 return CRYPTO_atomic_read(&ctx
->stats
.sess_cache_full
, &i
, ctx
->lock
)
2356 return (ctx
->mode
|= larg
);
2357 case SSL_CTRL_CLEAR_MODE
:
2358 return (ctx
->mode
&= ~larg
);
2359 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
2360 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
2362 ctx
->max_send_fragment
= larg
;
2363 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
2364 ctx
->split_send_fragment
= ctx
->max_send_fragment
;
2366 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
2367 if ((size_t)larg
> ctx
->max_send_fragment
|| larg
== 0)
2369 ctx
->split_send_fragment
= larg
;
2371 case SSL_CTRL_SET_MAX_PIPELINES
:
2372 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
2374 ctx
->max_pipelines
= larg
;
2376 case SSL_CTRL_CERT_FLAGS
:
2377 return (ctx
->cert
->cert_flags
|= larg
);
2378 case SSL_CTRL_CLEAR_CERT_FLAGS
:
2379 return (ctx
->cert
->cert_flags
&= ~larg
);
2380 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
2381 return ssl_check_allowed_versions(larg
, ctx
->max_proto_version
)
2382 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2383 &ctx
->min_proto_version
);
2384 case SSL_CTRL_GET_MIN_PROTO_VERSION
:
2385 return ctx
->min_proto_version
;
2386 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
2387 return ssl_check_allowed_versions(ctx
->min_proto_version
, larg
)
2388 && ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
2389 &ctx
->max_proto_version
);
2390 case SSL_CTRL_GET_MAX_PROTO_VERSION
:
2391 return ctx
->max_proto_version
;
2393 return ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
);
2397 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
2400 case SSL_CTRL_SET_MSG_CALLBACK
:
2401 ctx
->msg_callback
= (void (*)
2402 (int write_p
, int version
, int content_type
,
2403 const void *buf
, size_t len
, SSL
*ssl
,
2408 return ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
);
2412 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
2421 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2422 const SSL_CIPHER
*const *bp
)
2424 if ((*ap
)->id
> (*bp
)->id
)
2426 if ((*ap
)->id
< (*bp
)->id
)
2431 /** return a STACK of the ciphers available for the SSL and in order of
2433 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
2436 if (s
->cipher_list
!= NULL
) {
2437 return s
->cipher_list
;
2438 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
2439 return s
->ctx
->cipher_list
;
2445 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
2447 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
2449 return s
->session
->ciphers
;
2452 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
2454 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
2457 ciphers
= SSL_get_ciphers(s
);
2460 if (!ssl_set_client_disabled(s
))
2462 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
2463 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
2464 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
, 0)) {
2466 sk
= sk_SSL_CIPHER_new_null();
2469 if (!sk_SSL_CIPHER_push(sk
, c
)) {
2470 sk_SSL_CIPHER_free(sk
);
2478 /** return a STACK of the ciphers available for the SSL and in order of
2480 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
2483 if (s
->cipher_list_by_id
!= NULL
) {
2484 return s
->cipher_list_by_id
;
2485 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
2486 return s
->ctx
->cipher_list_by_id
;
2492 /** The old interface to get the same thing as SSL_get_ciphers() */
2493 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
2495 const SSL_CIPHER
*c
;
2496 STACK_OF(SSL_CIPHER
) *sk
;
2500 sk
= SSL_get_ciphers(s
);
2501 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2503 c
= sk_SSL_CIPHER_value(sk
, n
);
2509 /** return a STACK of the ciphers available for the SSL_CTX and in order of
2511 STACK_OF(SSL_CIPHER
) *SSL_CTX_get_ciphers(const SSL_CTX
*ctx
)
2514 return ctx
->cipher_list
;
2518 /** specify the ciphers to be used by default by the SSL_CTX */
2519 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2521 STACK_OF(SSL_CIPHER
) *sk
;
2523 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
2524 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
2526 * ssl_create_cipher_list may return an empty stack if it was unable to
2527 * find a cipher matching the given rule string (for example if the rule
2528 * string specifies a cipher which has been disabled). This is not an
2529 * error as far as ssl_create_cipher_list is concerned, and hence
2530 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2534 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2535 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2541 /** specify the ciphers to be used by the SSL */
2542 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2544 STACK_OF(SSL_CIPHER
) *sk
;
2546 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
2547 &s
->cipher_list_by_id
, str
, s
->cert
);
2548 /* see comment in SSL_CTX_set_cipher_list */
2551 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2552 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2558 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2561 STACK_OF(SSL_CIPHER
) *sk
;
2562 const SSL_CIPHER
*c
;
2565 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2569 sk
= s
->session
->ciphers
;
2571 if (sk_SSL_CIPHER_num(sk
) == 0)
2574 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2577 c
= sk_SSL_CIPHER_value(sk
, i
);
2578 n
= strlen(c
->name
);
2594 /** return a servername extension value if provided in Client Hello, or NULL.
2595 * So far, only host_name types are defined (RFC 3546).
2598 const char *SSL_get_servername(const SSL
*s
, const int type
)
2600 if (type
!= TLSEXT_NAMETYPE_host_name
)
2603 return s
->session
&& !s
->ext
.hostname
?
2604 s
->session
->ext
.hostname
: s
->ext
.hostname
;
2607 int SSL_get_servername_type(const SSL
*s
)
2610 && (!s
->ext
.hostname
? s
->session
->
2611 ext
.hostname
: s
->ext
.hostname
))
2612 return TLSEXT_NAMETYPE_host_name
;
2617 * SSL_select_next_proto implements the standard protocol selection. It is
2618 * expected that this function is called from the callback set by
2619 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2620 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2621 * not included in the length. A byte string of length 0 is invalid. No byte
2622 * string may be truncated. The current, but experimental algorithm for
2623 * selecting the protocol is: 1) If the server doesn't support NPN then this
2624 * is indicated to the callback. In this case, the client application has to
2625 * abort the connection or have a default application level protocol. 2) If
2626 * the server supports NPN, but advertises an empty list then the client
2627 * selects the first protocol in its list, but indicates via the API that this
2628 * fallback case was enacted. 3) Otherwise, the client finds the first
2629 * protocol in the server's list that it supports and selects this protocol.
2630 * This is because it's assumed that the server has better information about
2631 * which protocol a client should use. 4) If the client doesn't support any
2632 * of the server's advertised protocols, then this is treated the same as
2633 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2634 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2636 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2637 const unsigned char *server
,
2638 unsigned int server_len
,
2639 const unsigned char *client
, unsigned int client_len
)
2642 const unsigned char *result
;
2643 int status
= OPENSSL_NPN_UNSUPPORTED
;
2646 * For each protocol in server preference order, see if we support it.
2648 for (i
= 0; i
< server_len
;) {
2649 for (j
= 0; j
< client_len
;) {
2650 if (server
[i
] == client
[j
] &&
2651 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2652 /* We found a match */
2653 result
= &server
[i
];
2654 status
= OPENSSL_NPN_NEGOTIATED
;
2664 /* There's no overlap between our protocols and the server's list. */
2666 status
= OPENSSL_NPN_NO_OVERLAP
;
2669 *out
= (unsigned char *)result
+ 1;
2670 *outlen
= result
[0];
2674 #ifndef OPENSSL_NO_NEXTPROTONEG
2676 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2677 * client's requested protocol for this connection and returns 0. If the
2678 * client didn't request any protocol, then *data is set to NULL. Note that
2679 * the client can request any protocol it chooses. The value returned from
2680 * this function need not be a member of the list of supported protocols
2681 * provided by the callback.
2683 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2690 *len
= (unsigned int)s
->ext
.npn_len
;
2695 * SSL_CTX_set_npn_advertised_cb sets a callback that is called when
2696 * a TLS server needs a list of supported protocols for Next Protocol
2697 * Negotiation. The returned list must be in wire format. The list is
2698 * returned by setting |out| to point to it and |outlen| to its length. This
2699 * memory will not be modified, but one should assume that the SSL* keeps a
2700 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2701 * wishes to advertise. Otherwise, no such extension will be included in the
2704 void SSL_CTX_set_npn_advertised_cb(SSL_CTX
*ctx
,
2705 SSL_CTX_npn_advertised_cb_func cb
,
2708 ctx
->ext
.npn_advertised_cb
= cb
;
2709 ctx
->ext
.npn_advertised_cb_arg
= arg
;
2713 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2714 * client needs to select a protocol from the server's provided list. |out|
2715 * must be set to point to the selected protocol (which may be within |in|).
2716 * The length of the protocol name must be written into |outlen|. The
2717 * server's advertised protocols are provided in |in| and |inlen|. The
2718 * callback can assume that |in| is syntactically valid. The client must
2719 * select a protocol. It is fatal to the connection if this callback returns
2720 * a value other than SSL_TLSEXT_ERR_OK.
2722 void SSL_CTX_set_npn_select_cb(SSL_CTX
*ctx
,
2723 SSL_CTX_npn_select_cb_func cb
,
2726 ctx
->ext
.npn_select_cb
= cb
;
2727 ctx
->ext
.npn_select_cb_arg
= arg
;
2732 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2733 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2734 * length-prefixed strings). Returns 0 on success.
2736 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2737 unsigned int protos_len
)
2739 OPENSSL_free(ctx
->ext
.alpn
);
2740 ctx
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2741 if (ctx
->ext
.alpn
== NULL
) {
2742 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2745 ctx
->ext
.alpn_len
= protos_len
;
2751 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2752 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2753 * length-prefixed strings). Returns 0 on success.
2755 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2756 unsigned int protos_len
)
2758 OPENSSL_free(ssl
->ext
.alpn
);
2759 ssl
->ext
.alpn
= OPENSSL_memdup(protos
, protos_len
);
2760 if (ssl
->ext
.alpn
== NULL
) {
2761 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2764 ssl
->ext
.alpn_len
= protos_len
;
2770 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2771 * called during ClientHello processing in order to select an ALPN protocol
2772 * from the client's list of offered protocols.
2774 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2775 SSL_CTX_alpn_select_cb_func cb
,
2778 ctx
->ext
.alpn_select_cb
= cb
;
2779 ctx
->ext
.alpn_select_cb_arg
= arg
;
2783 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
2784 * On return it sets |*data| to point to |*len| bytes of protocol name
2785 * (not including the leading length-prefix byte). If the server didn't
2786 * respond with a negotiated protocol then |*len| will be zero.
2788 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2793 *data
= ssl
->s3
->alpn_selected
;
2797 *len
= (unsigned int)ssl
->s3
->alpn_selected_len
;
2800 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2801 const char *label
, size_t llen
,
2802 const unsigned char *context
, size_t contextlen
,
2805 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
2808 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2810 contextlen
, use_context
);
2813 int SSL_export_keying_material_early(SSL
*s
, unsigned char *out
, size_t olen
,
2814 const char *label
, size_t llen
,
2815 const unsigned char *context
,
2818 if (s
->version
!= TLS1_3_VERSION
)
2821 return tls13_export_keying_material_early(s
, out
, olen
, label
, llen
,
2822 context
, contextlen
);
2825 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2827 const unsigned char *session_id
= a
->session_id
;
2829 unsigned char tmp_storage
[4];
2831 if (a
->session_id_length
< sizeof(tmp_storage
)) {
2832 memset(tmp_storage
, 0, sizeof(tmp_storage
));
2833 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
2834 session_id
= tmp_storage
;
2838 ((unsigned long)session_id
[0]) |
2839 ((unsigned long)session_id
[1] << 8L) |
2840 ((unsigned long)session_id
[2] << 16L) |
2841 ((unsigned long)session_id
[3] << 24L);
2846 * NB: If this function (or indeed the hash function which uses a sort of
2847 * coarser function than this one) is changed, ensure
2848 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2849 * being able to construct an SSL_SESSION that will collide with any existing
2850 * session with a matching session ID.
2852 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2854 if (a
->ssl_version
!= b
->ssl_version
)
2856 if (a
->session_id_length
!= b
->session_id_length
)
2858 return memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
);
2862 * These wrapper functions should remain rather than redeclaring
2863 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2864 * variable. The reason is that the functions aren't static, they're exposed
2868 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2870 SSL_CTX
*ret
= NULL
;
2873 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2877 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2880 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2881 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2884 ret
= OPENSSL_zalloc(sizeof(*ret
));
2889 ret
->min_proto_version
= 0;
2890 ret
->max_proto_version
= 0;
2891 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2892 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2893 /* We take the system default. */
2894 ret
->session_timeout
= meth
->get_timeout();
2895 ret
->references
= 1;
2896 ret
->lock
= CRYPTO_THREAD_lock_new();
2897 if (ret
->lock
== NULL
) {
2898 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2902 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2903 ret
->verify_mode
= SSL_VERIFY_NONE
;
2904 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2907 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2908 if (ret
->sessions
== NULL
)
2910 ret
->cert_store
= X509_STORE_new();
2911 if (ret
->cert_store
== NULL
)
2913 #ifndef OPENSSL_NO_CT
2914 ret
->ctlog_store
= CTLOG_STORE_new();
2915 if (ret
->ctlog_store
== NULL
)
2918 if (!ssl_create_cipher_list(ret
->method
,
2919 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2920 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2921 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2922 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2926 ret
->param
= X509_VERIFY_PARAM_new();
2927 if (ret
->param
== NULL
)
2930 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2931 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2934 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2935 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2939 if ((ret
->ca_names
= sk_X509_NAME_new_null()) == NULL
)
2942 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
))
2945 /* No compression for DTLS */
2946 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2947 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2949 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2950 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2952 /* Setup RFC5077 ticket keys */
2953 if ((RAND_bytes(ret
->ext
.tick_key_name
,
2954 sizeof(ret
->ext
.tick_key_name
)) <= 0)
2955 || (RAND_bytes(ret
->ext
.tick_hmac_key
,
2956 sizeof(ret
->ext
.tick_hmac_key
)) <= 0)
2957 || (RAND_bytes(ret
->ext
.tick_aes_key
,
2958 sizeof(ret
->ext
.tick_aes_key
)) <= 0))
2959 ret
->options
|= SSL_OP_NO_TICKET
;
2961 if (RAND_bytes(ret
->ext
.cookie_hmac_key
,
2962 sizeof(ret
->ext
.cookie_hmac_key
)) <= 0)
2965 #ifndef OPENSSL_NO_SRP
2966 if (!SSL_CTX_SRP_CTX_init(ret
))
2969 #ifndef OPENSSL_NO_ENGINE
2970 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2971 # define eng_strx(x) #x
2972 # define eng_str(x) eng_strx(x)
2973 /* Use specific client engine automatically... ignore errors */
2976 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2979 ENGINE_load_builtin_engines();
2980 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2982 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2988 * Default is to connect to non-RI servers. When RI is more widely
2989 * deployed might change this.
2991 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2993 * Disable compression by default to prevent CRIME. Applications can
2994 * re-enable compression by configuring
2995 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2996 * or by using the SSL_CONF library. Similarly we also enable TLSv1.3
2997 * middlebox compatibility by default. This may be disabled by default in
2998 * a later OpenSSL version.
3000 ret
->options
|= SSL_OP_NO_COMPRESSION
| SSL_OP_ENABLE_MIDDLEBOX_COMPAT
;
3002 ret
->ext
.status_type
= TLSEXT_STATUSTYPE_nothing
;
3005 * Default max early data is a fully loaded single record. Could be split
3006 * across multiple records in practice
3008 ret
->max_early_data
= SSL3_RT_MAX_PLAIN_LENGTH
;
3012 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
3018 int SSL_CTX_up_ref(SSL_CTX
*ctx
)
3022 if (CRYPTO_UP_REF(&ctx
->references
, &i
, ctx
->lock
) <= 0)
3025 REF_PRINT_COUNT("SSL_CTX", ctx
);
3026 REF_ASSERT_ISNT(i
< 2);
3027 return ((i
> 1) ? 1 : 0);
3030 void SSL_CTX_free(SSL_CTX
*a
)
3037 CRYPTO_DOWN_REF(&a
->references
, &i
, a
->lock
);
3038 REF_PRINT_COUNT("SSL_CTX", a
);
3041 REF_ASSERT_ISNT(i
< 0);
3043 X509_VERIFY_PARAM_free(a
->param
);
3044 dane_ctx_final(&a
->dane
);
3047 * Free internal session cache. However: the remove_cb() may reference
3048 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
3049 * after the sessions were flushed.
3050 * As the ex_data handling routines might also touch the session cache,
3051 * the most secure solution seems to be: empty (flush) the cache, then
3052 * free ex_data, then finally free the cache.
3053 * (See ticket [openssl.org #212].)
3055 if (a
->sessions
!= NULL
)
3056 SSL_CTX_flush_sessions(a
, 0);
3058 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
3059 lh_SSL_SESSION_free(a
->sessions
);
3060 X509_STORE_free(a
->cert_store
);
3061 #ifndef OPENSSL_NO_CT
3062 CTLOG_STORE_free(a
->ctlog_store
);
3064 sk_SSL_CIPHER_free(a
->cipher_list
);
3065 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
3066 ssl_cert_free(a
->cert
);
3067 sk_X509_NAME_pop_free(a
->ca_names
, X509_NAME_free
);
3068 sk_X509_pop_free(a
->extra_certs
, X509_free
);
3069 a
->comp_methods
= NULL
;
3070 #ifndef OPENSSL_NO_SRTP
3071 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
3073 #ifndef OPENSSL_NO_SRP
3074 SSL_CTX_SRP_CTX_free(a
);
3076 #ifndef OPENSSL_NO_ENGINE
3077 ENGINE_finish(a
->client_cert_engine
);
3080 #ifndef OPENSSL_NO_EC
3081 OPENSSL_free(a
->ext
.ecpointformats
);
3082 OPENSSL_free(a
->ext
.supportedgroups
);
3084 OPENSSL_free(a
->ext
.alpn
);
3086 CRYPTO_THREAD_lock_free(a
->lock
);
3091 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
3093 ctx
->default_passwd_callback
= cb
;
3096 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
3098 ctx
->default_passwd_callback_userdata
= u
;
3101 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
3103 return ctx
->default_passwd_callback
;
3106 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
3108 return ctx
->default_passwd_callback_userdata
;
3111 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
3113 s
->default_passwd_callback
= cb
;
3116 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
3118 s
->default_passwd_callback_userdata
= u
;
3121 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
3123 return s
->default_passwd_callback
;
3126 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
3128 return s
->default_passwd_callback_userdata
;
3131 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
3132 int (*cb
) (X509_STORE_CTX
*, void *),
3135 ctx
->app_verify_callback
= cb
;
3136 ctx
->app_verify_arg
= arg
;
3139 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
3140 int (*cb
) (int, X509_STORE_CTX
*))
3142 ctx
->verify_mode
= mode
;
3143 ctx
->default_verify_callback
= cb
;
3146 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
3148 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
3151 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3153 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
3156 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
3158 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
3161 void ssl_set_masks(SSL
*s
)
3164 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
3165 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
3166 unsigned long mask_k
, mask_a
;
3167 #ifndef OPENSSL_NO_EC
3168 int have_ecc_cert
, ecdsa_ok
;
3173 #ifndef OPENSSL_NO_DH
3174 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
3179 rsa_enc
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3180 rsa_sign
= pvalid
[SSL_PKEY_RSA
] & CERT_PKEY_VALID
;
3181 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_VALID
;
3182 #ifndef OPENSSL_NO_EC
3183 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
3189 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
3190 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
3193 #ifndef OPENSSL_NO_GOST
3194 if (ssl_has_cert(s
, SSL_PKEY_GOST12_512
)) {
3195 mask_k
|= SSL_kGOST
;
3196 mask_a
|= SSL_aGOST12
;
3198 if (ssl_has_cert(s
, SSL_PKEY_GOST12_256
)) {
3199 mask_k
|= SSL_kGOST
;
3200 mask_a
|= SSL_aGOST12
;
3202 if (ssl_has_cert(s
, SSL_PKEY_GOST01
)) {
3203 mask_k
|= SSL_kGOST
;
3204 mask_a
|= SSL_aGOST01
;
3215 * If we only have an RSA-PSS certificate allow RSA authentication
3216 * if TLS 1.2 and peer supports it.
3219 if (rsa_enc
|| rsa_sign
|| (ssl_has_cert(s
, SSL_PKEY_RSA_PSS_SIGN
)
3220 && pvalid
[SSL_PKEY_RSA_PSS_SIGN
] & CERT_PKEY_EXPLICIT_SIGN
3221 && TLS1_get_version(s
) == TLS1_2_VERSION
))
3228 mask_a
|= SSL_aNULL
;
3231 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
3232 * depending on the key usage extension.
3234 #ifndef OPENSSL_NO_EC
3235 if (have_ecc_cert
) {
3237 ex_kusage
= X509_get_key_usage(c
->pkeys
[SSL_PKEY_ECC
].x509
);
3238 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
3239 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
3242 mask_a
|= SSL_aECDSA
;
3244 /* Allow Ed25519 for TLS 1.2 if peer supports it */
3245 if (!(mask_a
& SSL_aECDSA
) && ssl_has_cert(s
, SSL_PKEY_ED25519
)
3246 && pvalid
[SSL_PKEY_ED25519
] & CERT_PKEY_EXPLICIT_SIGN
3247 && TLS1_get_version(s
) == TLS1_2_VERSION
)
3248 mask_a
|= SSL_aECDSA
;
3251 #ifndef OPENSSL_NO_EC
3252 mask_k
|= SSL_kECDHE
;
3255 #ifndef OPENSSL_NO_PSK
3258 if (mask_k
& SSL_kRSA
)
3259 mask_k
|= SSL_kRSAPSK
;
3260 if (mask_k
& SSL_kDHE
)
3261 mask_k
|= SSL_kDHEPSK
;
3262 if (mask_k
& SSL_kECDHE
)
3263 mask_k
|= SSL_kECDHEPSK
;
3266 s
->s3
->tmp
.mask_k
= mask_k
;
3267 s
->s3
->tmp
.mask_a
= mask_a
;
3270 #ifndef OPENSSL_NO_EC
3272 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
3274 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
3275 /* key usage, if present, must allow signing */
3276 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
3277 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
3278 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
3282 return 1; /* all checks are ok */
3287 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
3288 size_t *serverinfo_length
)
3290 CERT_PKEY
*cpk
= s
->s3
->tmp
.cert
;
3291 *serverinfo_length
= 0;
3293 if (cpk
== NULL
|| cpk
->serverinfo
== NULL
)
3296 *serverinfo
= cpk
->serverinfo
;
3297 *serverinfo_length
= cpk
->serverinfo_length
;
3301 void ssl_update_cache(SSL
*s
, int mode
)
3306 * If the session_id_length is 0, we are not supposed to cache it, and it
3307 * would be rather hard to do anyway :-)
3309 if (s
->session
->session_id_length
== 0)
3312 i
= s
->session_ctx
->session_cache_mode
;
3314 && (!s
->hit
|| SSL_IS_TLS13(s
))
3315 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
) != 0
3316 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
3317 && s
->session_ctx
->new_session_cb
!= NULL
) {
3318 SSL_SESSION_up_ref(s
->session
);
3319 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
3320 SSL_SESSION_free(s
->session
);
3323 /* auto flush every 255 connections */
3324 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
3326 if (mode
& SSL_SESS_CACHE_CLIENT
)
3327 stat
= &s
->session_ctx
->stats
.sess_connect_good
;
3329 stat
= &s
->session_ctx
->stats
.sess_accept_good
;
3330 if (CRYPTO_atomic_read(stat
, &val
, s
->session_ctx
->lock
)
3331 && (val
& 0xff) == 0xff)
3332 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
3336 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
3341 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
3346 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
3350 if (s
->method
!= meth
) {
3351 const SSL_METHOD
*sm
= s
->method
;
3352 int (*hf
) (SSL
*) = s
->handshake_func
;
3354 if (sm
->version
== meth
->version
)
3359 ret
= s
->method
->ssl_new(s
);
3362 if (hf
== sm
->ssl_connect
)
3363 s
->handshake_func
= meth
->ssl_connect
;
3364 else if (hf
== sm
->ssl_accept
)
3365 s
->handshake_func
= meth
->ssl_accept
;
3370 int SSL_get_error(const SSL
*s
, int i
)
3377 return SSL_ERROR_NONE
;
3380 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
3381 * where we do encode the error
3383 if ((l
= ERR_peek_error()) != 0) {
3384 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
3385 return SSL_ERROR_SYSCALL
;
3387 return SSL_ERROR_SSL
;
3390 if (SSL_want_read(s
)) {
3391 bio
= SSL_get_rbio(s
);
3392 if (BIO_should_read(bio
))
3393 return SSL_ERROR_WANT_READ
;
3394 else if (BIO_should_write(bio
))
3396 * This one doesn't make too much sense ... We never try to write
3397 * to the rbio, and an application program where rbio and wbio
3398 * are separate couldn't even know what it should wait for.
3399 * However if we ever set s->rwstate incorrectly (so that we have
3400 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
3401 * wbio *are* the same, this test works around that bug; so it
3402 * might be safer to keep it.
3404 return SSL_ERROR_WANT_WRITE
;
3405 else if (BIO_should_io_special(bio
)) {
3406 reason
= BIO_get_retry_reason(bio
);
3407 if (reason
== BIO_RR_CONNECT
)
3408 return SSL_ERROR_WANT_CONNECT
;
3409 else if (reason
== BIO_RR_ACCEPT
)
3410 return SSL_ERROR_WANT_ACCEPT
;
3412 return SSL_ERROR_SYSCALL
; /* unknown */
3416 if (SSL_want_write(s
)) {
3417 /* Access wbio directly - in order to use the buffered bio if present */
3419 if (BIO_should_write(bio
))
3420 return SSL_ERROR_WANT_WRITE
;
3421 else if (BIO_should_read(bio
))
3423 * See above (SSL_want_read(s) with BIO_should_write(bio))
3425 return SSL_ERROR_WANT_READ
;
3426 else if (BIO_should_io_special(bio
)) {
3427 reason
= BIO_get_retry_reason(bio
);
3428 if (reason
== BIO_RR_CONNECT
)
3429 return SSL_ERROR_WANT_CONNECT
;
3430 else if (reason
== BIO_RR_ACCEPT
)
3431 return SSL_ERROR_WANT_ACCEPT
;
3433 return SSL_ERROR_SYSCALL
;
3436 if (SSL_want_x509_lookup(s
))
3437 return SSL_ERROR_WANT_X509_LOOKUP
;
3438 if (SSL_want_async(s
))
3439 return SSL_ERROR_WANT_ASYNC
;
3440 if (SSL_want_async_job(s
))
3441 return SSL_ERROR_WANT_ASYNC_JOB
;
3442 if (SSL_want_client_hello_cb(s
))
3443 return SSL_ERROR_WANT_CLIENT_HELLO_CB
;
3445 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
3446 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
3447 return SSL_ERROR_ZERO_RETURN
;
3449 return SSL_ERROR_SYSCALL
;
3452 static int ssl_do_handshake_intern(void *vargs
)
3454 struct ssl_async_args
*args
;
3457 args
= (struct ssl_async_args
*)vargs
;
3460 return s
->handshake_func(s
);
3463 int SSL_do_handshake(SSL
*s
)
3467 if (s
->handshake_func
== NULL
) {
3468 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3472 ossl_statem_check_finish_init(s
, -1);
3474 s
->method
->ssl_renegotiate_check(s
, 0);
3476 if (SSL_is_server(s
)) {
3477 /* clear SNI settings at server-side */
3478 OPENSSL_free(s
->ext
.hostname
);
3479 s
->ext
.hostname
= NULL
;
3482 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3483 if ((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3484 struct ssl_async_args args
;
3488 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3490 ret
= s
->handshake_func(s
);
3496 void SSL_set_accept_state(SSL
*s
)
3500 ossl_statem_clear(s
);
3501 s
->handshake_func
= s
->method
->ssl_accept
;
3505 void SSL_set_connect_state(SSL
*s
)
3509 ossl_statem_clear(s
);
3510 s
->handshake_func
= s
->method
->ssl_connect
;
3514 int ssl_undefined_function(SSL
*s
)
3516 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3520 int ssl_undefined_void_function(void)
3522 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3523 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3527 int ssl_undefined_const_function(const SSL
*s
)
3532 const SSL_METHOD
*ssl_bad_method(int ver
)
3534 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3538 const char *ssl_protocol_to_string(int version
)
3542 case TLS1_3_VERSION
:
3545 case TLS1_2_VERSION
:
3548 case TLS1_1_VERSION
:
3563 case DTLS1_2_VERSION
:
3571 const char *SSL_get_version(const SSL
*s
)
3573 return ssl_protocol_to_string(s
->version
);
3576 SSL
*SSL_dup(SSL
*s
)
3578 STACK_OF(X509_NAME
) *sk
;
3583 /* If we're not quiescent, just up_ref! */
3584 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3585 CRYPTO_UP_REF(&s
->references
, &i
, s
->lock
);
3590 * Otherwise, copy configuration state, and session if set.
3592 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3595 if (s
->session
!= NULL
) {
3597 * Arranges to share the same session via up_ref. This "copies"
3598 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3600 if (!SSL_copy_session_id(ret
, s
))
3604 * No session has been established yet, so we have to expect that
3605 * s->cert or ret->cert will be changed later -- they should not both
3606 * point to the same object, and thus we can't use
3607 * SSL_copy_session_id.
3609 if (!SSL_set_ssl_method(ret
, s
->method
))
3612 if (s
->cert
!= NULL
) {
3613 ssl_cert_free(ret
->cert
);
3614 ret
->cert
= ssl_cert_dup(s
->cert
);
3615 if (ret
->cert
== NULL
)
3619 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
,
3620 (int)s
->sid_ctx_length
))
3624 if (!ssl_dane_dup(ret
, s
))
3626 ret
->version
= s
->version
;
3627 ret
->options
= s
->options
;
3628 ret
->mode
= s
->mode
;
3629 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3630 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3631 ret
->msg_callback
= s
->msg_callback
;
3632 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3633 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3634 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3635 ret
->generate_session_id
= s
->generate_session_id
;
3637 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3639 /* copy app data, a little dangerous perhaps */
3640 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3643 /* setup rbio, and wbio */
3644 if (s
->rbio
!= NULL
) {
3645 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3648 if (s
->wbio
!= NULL
) {
3649 if (s
->wbio
!= s
->rbio
) {
3650 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3653 BIO_up_ref(ret
->rbio
);
3654 ret
->wbio
= ret
->rbio
;
3658 ret
->server
= s
->server
;
3659 if (s
->handshake_func
) {
3661 SSL_set_accept_state(ret
);
3663 SSL_set_connect_state(ret
);
3665 ret
->shutdown
= s
->shutdown
;
3668 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3669 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3671 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3673 /* dup the cipher_list and cipher_list_by_id stacks */
3674 if (s
->cipher_list
!= NULL
) {
3675 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3678 if (s
->cipher_list_by_id
!= NULL
)
3679 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3683 /* Dup the client_CA list */
3684 if (s
->ca_names
!= NULL
) {
3685 if ((sk
= sk_X509_NAME_dup(s
->ca_names
)) == NULL
)
3688 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3689 xn
= sk_X509_NAME_value(sk
, i
);
3690 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3703 void ssl_clear_cipher_ctx(SSL
*s
)
3705 if (s
->enc_read_ctx
!= NULL
) {
3706 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3707 s
->enc_read_ctx
= NULL
;
3709 if (s
->enc_write_ctx
!= NULL
) {
3710 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3711 s
->enc_write_ctx
= NULL
;
3713 #ifndef OPENSSL_NO_COMP
3714 COMP_CTX_free(s
->expand
);
3716 COMP_CTX_free(s
->compress
);
3721 X509
*SSL_get_certificate(const SSL
*s
)
3723 if (s
->cert
!= NULL
)
3724 return s
->cert
->key
->x509
;
3729 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3731 if (s
->cert
!= NULL
)
3732 return s
->cert
->key
->privatekey
;
3737 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3739 if (ctx
->cert
!= NULL
)
3740 return ctx
->cert
->key
->x509
;
3745 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3747 if (ctx
->cert
!= NULL
)
3748 return ctx
->cert
->key
->privatekey
;
3753 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3755 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3756 return s
->session
->cipher
;
3760 const SSL_CIPHER
*SSL_get_pending_cipher(const SSL
*s
)
3762 return s
->s3
->tmp
.new_cipher
;
3765 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3767 #ifndef OPENSSL_NO_COMP
3768 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3774 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3776 #ifndef OPENSSL_NO_COMP
3777 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3783 int ssl_init_wbio_buffer(SSL
*s
)
3787 if (s
->bbio
!= NULL
) {
3788 /* Already buffered. */
3792 bbio
= BIO_new(BIO_f_buffer());
3793 if (bbio
== NULL
|| !BIO_set_read_buffer_size(bbio
, 1)) {
3795 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3799 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3804 int ssl_free_wbio_buffer(SSL
*s
)
3806 /* callers ensure s is never null */
3807 if (s
->bbio
== NULL
)
3810 s
->wbio
= BIO_pop(s
->wbio
);
3811 if (!ossl_assert(s
->wbio
!= NULL
))
3819 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3821 ctx
->quiet_shutdown
= mode
;
3824 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3826 return ctx
->quiet_shutdown
;
3829 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3831 s
->quiet_shutdown
= mode
;
3834 int SSL_get_quiet_shutdown(const SSL
*s
)
3836 return s
->quiet_shutdown
;
3839 void SSL_set_shutdown(SSL
*s
, int mode
)
3844 int SSL_get_shutdown(const SSL
*s
)
3849 int SSL_version(const SSL
*s
)
3854 int SSL_client_version(const SSL
*s
)
3856 return s
->client_version
;
3859 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3864 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3867 if (ssl
->ctx
== ctx
)
3870 ctx
= ssl
->session_ctx
;
3871 new_cert
= ssl_cert_dup(ctx
->cert
);
3872 if (new_cert
== NULL
) {
3876 if (!custom_exts_copy_flags(&new_cert
->custext
, &ssl
->cert
->custext
)) {
3877 ssl_cert_free(new_cert
);
3881 ssl_cert_free(ssl
->cert
);
3882 ssl
->cert
= new_cert
;
3885 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3886 * so setter APIs must prevent invalid lengths from entering the system.
3888 if (!ossl_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
)))
3892 * If the session ID context matches that of the parent SSL_CTX,
3893 * inherit it from the new SSL_CTX as well. If however the context does
3894 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3895 * leave it unchanged.
3897 if ((ssl
->ctx
!= NULL
) &&
3898 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3899 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3900 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3901 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3904 SSL_CTX_up_ref(ctx
);
3905 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3911 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3913 return X509_STORE_set_default_paths(ctx
->cert_store
);
3916 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3918 X509_LOOKUP
*lookup
;
3920 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
3923 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3925 /* Clear any errors if the default directory does not exist */
3931 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
3933 X509_LOOKUP
*lookup
;
3935 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
3939 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3941 /* Clear any errors if the default file does not exist */
3947 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3950 return X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
);
3953 void SSL_set_info_callback(SSL
*ssl
,
3954 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3956 ssl
->info_callback
= cb
;
3960 * One compiler (Diab DCC) doesn't like argument names in returned function
3963 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3966 return ssl
->info_callback
;
3969 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3971 ssl
->verify_result
= arg
;
3974 long SSL_get_verify_result(const SSL
*ssl
)
3976 return ssl
->verify_result
;
3979 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3982 return sizeof(ssl
->s3
->client_random
);
3983 if (outlen
> sizeof(ssl
->s3
->client_random
))
3984 outlen
= sizeof(ssl
->s3
->client_random
);
3985 memcpy(out
, ssl
->s3
->client_random
, outlen
);
3989 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3992 return sizeof(ssl
->s3
->server_random
);
3993 if (outlen
> sizeof(ssl
->s3
->server_random
))
3994 outlen
= sizeof(ssl
->s3
->server_random
);
3995 memcpy(out
, ssl
->s3
->server_random
, outlen
);
3999 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
4000 unsigned char *out
, size_t outlen
)
4003 return session
->master_key_length
;
4004 if (outlen
> session
->master_key_length
)
4005 outlen
= session
->master_key_length
;
4006 memcpy(out
, session
->master_key
, outlen
);
4010 int SSL_SESSION_set1_master_key(SSL_SESSION
*sess
, const unsigned char *in
,
4013 if (len
> sizeof(sess
->master_key
))
4016 memcpy(sess
->master_key
, in
, len
);
4017 sess
->master_key_length
= len
;
4022 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
4024 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4027 void *SSL_get_ex_data(const SSL
*s
, int idx
)
4029 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4032 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
4034 return CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
);
4037 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
4039 return CRYPTO_get_ex_data(&s
->ex_data
, idx
);
4042 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
4044 return ctx
->cert_store
;
4047 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4049 X509_STORE_free(ctx
->cert_store
);
4050 ctx
->cert_store
= store
;
4053 void SSL_CTX_set1_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
4056 X509_STORE_up_ref(store
);
4057 SSL_CTX_set_cert_store(ctx
, store
);
4060 int SSL_want(const SSL
*s
)
4066 * \brief Set the callback for generating temporary DH keys.
4067 * \param ctx the SSL context.
4068 * \param dh the callback
4071 #ifndef OPENSSL_NO_DH
4072 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
4073 DH
*(*dh
) (SSL
*ssl
, int is_export
,
4076 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4079 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
4082 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
4086 #ifndef OPENSSL_NO_PSK
4087 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
4089 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4090 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4093 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
4094 if (identity_hint
!= NULL
) {
4095 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4096 if (ctx
->cert
->psk_identity_hint
== NULL
)
4099 ctx
->cert
->psk_identity_hint
= NULL
;
4103 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
4108 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
4109 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
4112 OPENSSL_free(s
->cert
->psk_identity_hint
);
4113 if (identity_hint
!= NULL
) {
4114 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
4115 if (s
->cert
->psk_identity_hint
== NULL
)
4118 s
->cert
->psk_identity_hint
= NULL
;
4122 const char *SSL_get_psk_identity_hint(const SSL
*s
)
4124 if (s
== NULL
|| s
->session
== NULL
)
4126 return s
->session
->psk_identity_hint
;
4129 const char *SSL_get_psk_identity(const SSL
*s
)
4131 if (s
== NULL
|| s
->session
== NULL
)
4133 return s
->session
->psk_identity
;
4136 void SSL_set_psk_client_callback(SSL
*s
, SSL_psk_client_cb_func cb
)
4138 s
->psk_client_callback
= cb
;
4141 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
, SSL_psk_client_cb_func cb
)
4143 ctx
->psk_client_callback
= cb
;
4146 void SSL_set_psk_server_callback(SSL
*s
, SSL_psk_server_cb_func cb
)
4148 s
->psk_server_callback
= cb
;
4151 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
, SSL_psk_server_cb_func cb
)
4153 ctx
->psk_server_callback
= cb
;
4157 void SSL_set_psk_find_session_callback(SSL
*s
, SSL_psk_find_session_cb_func cb
)
4159 s
->psk_find_session_cb
= cb
;
4162 void SSL_CTX_set_psk_find_session_callback(SSL_CTX
*ctx
,
4163 SSL_psk_find_session_cb_func cb
)
4165 ctx
->psk_find_session_cb
= cb
;
4168 void SSL_set_psk_use_session_callback(SSL
*s
, SSL_psk_use_session_cb_func cb
)
4170 s
->psk_use_session_cb
= cb
;
4173 void SSL_CTX_set_psk_use_session_callback(SSL_CTX
*ctx
,
4174 SSL_psk_use_session_cb_func cb
)
4176 ctx
->psk_use_session_cb
= cb
;
4179 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
4180 void (*cb
) (int write_p
, int version
,
4181 int content_type
, const void *buf
,
4182 size_t len
, SSL
*ssl
, void *arg
))
4184 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4187 void SSL_set_msg_callback(SSL
*ssl
,
4188 void (*cb
) (int write_p
, int version
,
4189 int content_type
, const void *buf
,
4190 size_t len
, SSL
*ssl
, void *arg
))
4192 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
4195 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
4196 int (*cb
) (SSL
*ssl
,
4200 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4201 (void (*)(void))cb
);
4204 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
4205 int (*cb
) (SSL
*ssl
,
4206 int is_forward_secure
))
4208 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
4209 (void (*)(void))cb
);
4212 void SSL_CTX_set_record_padding_callback(SSL_CTX
*ctx
,
4213 size_t (*cb
) (SSL
*ssl
, int type
,
4214 size_t len
, void *arg
))
4216 ctx
->record_padding_cb
= cb
;
4219 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX
*ctx
, void *arg
)
4221 ctx
->record_padding_arg
= arg
;
4224 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX
*ctx
)
4226 return ctx
->record_padding_arg
;
4229 int SSL_CTX_set_block_padding(SSL_CTX
*ctx
, size_t block_size
)
4231 /* block size of 0 or 1 is basically no padding */
4232 if (block_size
== 1)
4233 ctx
->block_padding
= 0;
4234 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4235 ctx
->block_padding
= block_size
;
4241 void SSL_set_record_padding_callback(SSL
*ssl
,
4242 size_t (*cb
) (SSL
*ssl
, int type
,
4243 size_t len
, void *arg
))
4245 ssl
->record_padding_cb
= cb
;
4248 void SSL_set_record_padding_callback_arg(SSL
*ssl
, void *arg
)
4250 ssl
->record_padding_arg
= arg
;
4253 void *SSL_get_record_padding_callback_arg(SSL
*ssl
)
4255 return ssl
->record_padding_arg
;
4258 int SSL_set_block_padding(SSL
*ssl
, size_t block_size
)
4260 /* block size of 0 or 1 is basically no padding */
4261 if (block_size
== 1)
4262 ssl
->block_padding
= 0;
4263 else if (block_size
<= SSL3_RT_MAX_PLAIN_LENGTH
)
4264 ssl
->block_padding
= block_size
;
4271 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
4272 * variable, freeing EVP_MD_CTX previously stored in that variable, if any.
4273 * If EVP_MD pointer is passed, initializes ctx with this |md|.
4274 * Returns the newly allocated ctx;
4277 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
4279 ssl_clear_hash_ctx(hash
);
4280 *hash
= EVP_MD_CTX_new();
4281 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
4282 EVP_MD_CTX_free(*hash
);
4289 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
4292 EVP_MD_CTX_free(*hash
);
4296 /* Retrieve handshake hashes */
4297 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, size_t outlen
,
4300 EVP_MD_CTX
*ctx
= NULL
;
4301 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
4302 int hashleni
= EVP_MD_CTX_size(hdgst
);
4305 if (hashleni
< 0 || (size_t)hashleni
> outlen
) {
4306 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4307 ERR_R_INTERNAL_ERROR
);
4311 ctx
= EVP_MD_CTX_new();
4315 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
4316 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0) {
4317 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_HANDSHAKE_HASH
,
4318 ERR_R_INTERNAL_ERROR
);
4322 *hashlen
= hashleni
;
4326 EVP_MD_CTX_free(ctx
);
4330 int SSL_session_reused(SSL
*s
)
4335 int SSL_is_server(const SSL
*s
)
4340 #if OPENSSL_API_COMPAT < 0x10100000L
4341 void SSL_set_debug(SSL
*s
, int debug
)
4343 /* Old function was do-nothing anyway... */
4349 void SSL_set_security_level(SSL
*s
, int level
)
4351 s
->cert
->sec_level
= level
;
4354 int SSL_get_security_level(const SSL
*s
)
4356 return s
->cert
->sec_level
;
4359 void SSL_set_security_callback(SSL
*s
,
4360 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4361 int op
, int bits
, int nid
,
4362 void *other
, void *ex
))
4364 s
->cert
->sec_cb
= cb
;
4367 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
,
4368 const SSL_CTX
*ctx
, int op
,
4369 int bits
, int nid
, void *other
,
4371 return s
->cert
->sec_cb
;
4374 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
4376 s
->cert
->sec_ex
= ex
;
4379 void *SSL_get0_security_ex_data(const SSL
*s
)
4381 return s
->cert
->sec_ex
;
4384 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
4386 ctx
->cert
->sec_level
= level
;
4389 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
4391 return ctx
->cert
->sec_level
;
4394 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
4395 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
,
4396 int op
, int bits
, int nid
,
4397 void *other
, void *ex
))
4399 ctx
->cert
->sec_cb
= cb
;
4402 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
4408 return ctx
->cert
->sec_cb
;
4411 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
4413 ctx
->cert
->sec_ex
= ex
;
4416 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
4418 return ctx
->cert
->sec_ex
;
4422 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
4423 * can return unsigned long, instead of the generic long return value from the
4424 * control interface.
4426 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
4428 return ctx
->options
;
4431 unsigned long SSL_get_options(const SSL
*s
)
4436 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
4438 return ctx
->options
|= op
;
4441 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
4443 return s
->options
|= op
;
4446 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
4448 return ctx
->options
&= ~op
;
4451 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
4453 return s
->options
&= ~op
;
4456 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
4458 return s
->verified_chain
;
4461 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
4463 #ifndef OPENSSL_NO_CT
4466 * Moves SCTs from the |src| stack to the |dst| stack.
4467 * The source of each SCT will be set to |origin|.
4468 * If |dst| points to a NULL pointer, a new stack will be created and owned by
4470 * Returns the number of SCTs moved, or a negative integer if an error occurs.
4472 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
,
4473 sct_source_t origin
)
4479 *dst
= sk_SCT_new_null();
4481 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
4486 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
4487 if (SCT_set_source(sct
, origin
) != 1)
4490 if (sk_SCT_push(*dst
, sct
) <= 0)
4498 sk_SCT_push(src
, sct
); /* Put the SCT back */
4503 * Look for data collected during ServerHello and parse if found.
4504 * Returns the number of SCTs extracted.
4506 static int ct_extract_tls_extension_scts(SSL
*s
)
4508 int scts_extracted
= 0;
4510 if (s
->ext
.scts
!= NULL
) {
4511 const unsigned char *p
= s
->ext
.scts
;
4512 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->ext
.scts_len
);
4514 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
4516 SCT_LIST_free(scts
);
4519 return scts_extracted
;
4523 * Checks for an OCSP response and then attempts to extract any SCTs found if it
4524 * contains an SCT X509 extension. They will be stored in |s->scts|.
4526 * - The number of SCTs extracted, assuming an OCSP response exists.
4527 * - 0 if no OCSP response exists or it contains no SCTs.
4528 * - A negative integer if an error occurs.
4530 static int ct_extract_ocsp_response_scts(SSL
*s
)
4532 # ifndef OPENSSL_NO_OCSP
4533 int scts_extracted
= 0;
4534 const unsigned char *p
;
4535 OCSP_BASICRESP
*br
= NULL
;
4536 OCSP_RESPONSE
*rsp
= NULL
;
4537 STACK_OF(SCT
) *scts
= NULL
;
4540 if (s
->ext
.ocsp
.resp
== NULL
|| s
->ext
.ocsp
.resp_len
== 0)
4543 p
= s
->ext
.ocsp
.resp
;
4544 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, (int)s
->ext
.ocsp
.resp_len
);
4548 br
= OCSP_response_get1_basic(rsp
);
4552 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
4553 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
4559 OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
4561 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
4562 if (scts_extracted
< 0)
4566 SCT_LIST_free(scts
);
4567 OCSP_BASICRESP_free(br
);
4568 OCSP_RESPONSE_free(rsp
);
4569 return scts_extracted
;
4571 /* Behave as if no OCSP response exists */
4577 * Attempts to extract SCTs from the peer certificate.
4578 * Return the number of SCTs extracted, or a negative integer if an error
4581 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4583 int scts_extracted
= 0;
4584 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4587 STACK_OF(SCT
) *scts
=
4588 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4591 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4593 SCT_LIST_free(scts
);
4596 return scts_extracted
;
4600 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4601 * response (if it exists) and X509v3 extensions in the certificate.
4602 * Returns NULL if an error occurs.
4604 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4606 if (!s
->scts_parsed
) {
4607 if (ct_extract_tls_extension_scts(s
) < 0 ||
4608 ct_extract_ocsp_response_scts(s
) < 0 ||
4609 ct_extract_x509v3_extension_scts(s
) < 0)
4619 static int ct_permissive(const CT_POLICY_EVAL_CTX
* ctx
,
4620 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4625 static int ct_strict(const CT_POLICY_EVAL_CTX
* ctx
,
4626 const STACK_OF(SCT
) *scts
, void *unused_arg
)
4628 int count
= scts
!= NULL
? sk_SCT_num(scts
) : 0;
4631 for (i
= 0; i
< count
; ++i
) {
4632 SCT
*sct
= sk_SCT_value(scts
, i
);
4633 int status
= SCT_get_validation_status(sct
);
4635 if (status
== SCT_VALIDATION_STATUS_VALID
)
4638 SSLerr(SSL_F_CT_STRICT
, SSL_R_NO_VALID_SCTS
);
4642 int SSL_set_ct_validation_callback(SSL
*s
, ssl_ct_validation_cb callback
,
4646 * Since code exists that uses the custom extension handler for CT, look
4647 * for this and throw an error if they have already registered to use CT.
4649 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4650 TLSEXT_TYPE_signed_certificate_timestamp
))
4652 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4653 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4657 if (callback
!= NULL
) {
4659 * If we are validating CT, then we MUST accept SCTs served via OCSP
4661 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4665 s
->ct_validation_callback
= callback
;
4666 s
->ct_validation_callback_arg
= arg
;
4671 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
,
4672 ssl_ct_validation_cb callback
, void *arg
)
4675 * Since code exists that uses the custom extension handler for CT, look for
4676 * this and throw an error if they have already registered to use CT.
4678 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4679 TLSEXT_TYPE_signed_certificate_timestamp
))
4681 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4682 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4686 ctx
->ct_validation_callback
= callback
;
4687 ctx
->ct_validation_callback_arg
= arg
;
4691 int SSL_ct_is_enabled(const SSL
*s
)
4693 return s
->ct_validation_callback
!= NULL
;
4696 int SSL_CTX_ct_is_enabled(const SSL_CTX
*ctx
)
4698 return ctx
->ct_validation_callback
!= NULL
;
4701 int ssl_validate_ct(SSL
*s
)
4704 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4706 SSL_DANE
*dane
= &s
->dane
;
4707 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4708 const STACK_OF(SCT
) *scts
;
4711 * If no callback is set, the peer is anonymous, or its chain is invalid,
4712 * skip SCT validation - just return success. Applications that continue
4713 * handshakes without certificates, with unverified chains, or pinned leaf
4714 * certificates are outside the scope of the WebPKI and CT.
4716 * The above exclusions notwithstanding the vast majority of peers will
4717 * have rather ordinary certificate chains validated by typical
4718 * applications that perform certificate verification and therefore will
4719 * process SCTs when enabled.
4721 if (s
->ct_validation_callback
== NULL
|| cert
== NULL
||
4722 s
->verify_result
!= X509_V_OK
||
4723 s
->verified_chain
== NULL
|| sk_X509_num(s
->verified_chain
) <= 1)
4727 * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3)
4728 * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2
4730 if (DANETLS_ENABLED(dane
) && dane
->mtlsa
!= NULL
) {
4731 switch (dane
->mtlsa
->usage
) {
4732 case DANETLS_USAGE_DANE_TA
:
4733 case DANETLS_USAGE_DANE_EE
:
4738 ctx
= CT_POLICY_EVAL_CTX_new();
4740 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_VALIDATE_CT
,
4741 ERR_R_MALLOC_FAILURE
);
4745 issuer
= sk_X509_value(s
->verified_chain
, 1);
4746 CT_POLICY_EVAL_CTX_set1_cert(ctx
, cert
);
4747 CT_POLICY_EVAL_CTX_set1_issuer(ctx
, issuer
);
4748 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx
, s
->ctx
->ctlog_store
);
4749 CT_POLICY_EVAL_CTX_set_time(
4750 ctx
, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s
)) * 1000);
4752 scts
= SSL_get0_peer_scts(s
);
4755 * This function returns success (> 0) only when all the SCTs are valid, 0
4756 * when some are invalid, and < 0 on various internal errors (out of
4757 * memory, etc.). Having some, or even all, invalid SCTs is not sufficient
4758 * reason to abort the handshake, that decision is up to the callback.
4759 * Therefore, we error out only in the unexpected case that the return
4760 * value is negative.
4762 * XXX: One might well argue that the return value of this function is an
4763 * unfortunate design choice. Its job is only to determine the validation
4764 * status of each of the provided SCTs. So long as it correctly separates
4765 * the wheat from the chaff it should return success. Failure in this case
4766 * ought to correspond to an inability to carry out its duties.
4768 if (SCT_LIST_validate(scts
, ctx
) < 0) {
4769 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4770 SSL_R_SCT_VERIFICATION_FAILED
);
4774 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4776 ret
= 0; /* This function returns 0 on failure */
4778 SSLfatal(s
, SSL_AD_HANDSHAKE_FAILURE
, SSL_F_SSL_VALIDATE_CT
,
4779 SSL_R_CALLBACK_FAILED
);
4782 CT_POLICY_EVAL_CTX_free(ctx
);
4784 * With SSL_VERIFY_NONE the session may be cached and re-used despite a
4785 * failure return code here. Also the application may wish the complete
4786 * the handshake, and then disconnect cleanly at a higher layer, after
4787 * checking the verification status of the completed connection.
4789 * We therefore force a certificate verification failure which will be
4790 * visible via SSL_get_verify_result() and cached as part of any resumed
4793 * Note: the permissive callback is for information gathering only, always
4794 * returns success, and does not affect verification status. Only the
4795 * strict callback or a custom application-specified callback can trigger
4796 * connection failure or record a verification error.
4799 s
->verify_result
= X509_V_ERR_NO_VALID_SCTS
;
4803 int SSL_CTX_enable_ct(SSL_CTX
*ctx
, int validation_mode
)
4805 switch (validation_mode
) {
4807 SSLerr(SSL_F_SSL_CTX_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4809 case SSL_CT_VALIDATION_PERMISSIVE
:
4810 return SSL_CTX_set_ct_validation_callback(ctx
, ct_permissive
, NULL
);
4811 case SSL_CT_VALIDATION_STRICT
:
4812 return SSL_CTX_set_ct_validation_callback(ctx
, ct_strict
, NULL
);
4816 int SSL_enable_ct(SSL
*s
, int validation_mode
)
4818 switch (validation_mode
) {
4820 SSLerr(SSL_F_SSL_ENABLE_CT
, SSL_R_INVALID_CT_VALIDATION_TYPE
);
4822 case SSL_CT_VALIDATION_PERMISSIVE
:
4823 return SSL_set_ct_validation_callback(s
, ct_permissive
, NULL
);
4824 case SSL_CT_VALIDATION_STRICT
:
4825 return SSL_set_ct_validation_callback(s
, ct_strict
, NULL
);
4829 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4831 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4834 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4836 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4839 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
* logs
)
4841 CTLOG_STORE_free(ctx
->ctlog_store
);
4842 ctx
->ctlog_store
= logs
;
4845 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4847 return ctx
->ctlog_store
;
4850 #endif /* OPENSSL_NO_CT */
4852 void SSL_CTX_set_client_hello_cb(SSL_CTX
*c
, SSL_client_hello_cb_fn cb
,
4855 c
->client_hello_cb
= cb
;
4856 c
->client_hello_cb_arg
= arg
;
4859 int SSL_client_hello_isv2(SSL
*s
)
4861 if (s
->clienthello
== NULL
)
4863 return s
->clienthello
->isv2
;
4866 unsigned int SSL_client_hello_get0_legacy_version(SSL
*s
)
4868 if (s
->clienthello
== NULL
)
4870 return s
->clienthello
->legacy_version
;
4873 size_t SSL_client_hello_get0_random(SSL
*s
, const unsigned char **out
)
4875 if (s
->clienthello
== NULL
)
4878 *out
= s
->clienthello
->random
;
4879 return SSL3_RANDOM_SIZE
;
4882 size_t SSL_client_hello_get0_session_id(SSL
*s
, const unsigned char **out
)
4884 if (s
->clienthello
== NULL
)
4887 *out
= s
->clienthello
->session_id
;
4888 return s
->clienthello
->session_id_len
;
4891 size_t SSL_client_hello_get0_ciphers(SSL
*s
, const unsigned char **out
)
4893 if (s
->clienthello
== NULL
)
4896 *out
= PACKET_data(&s
->clienthello
->ciphersuites
);
4897 return PACKET_remaining(&s
->clienthello
->ciphersuites
);
4900 size_t SSL_client_hello_get0_compression_methods(SSL
*s
, const unsigned char **out
)
4902 if (s
->clienthello
== NULL
)
4905 *out
= s
->clienthello
->compressions
;
4906 return s
->clienthello
->compressions_len
;
4909 int SSL_client_hello_get1_extensions_present(SSL
*s
, int **out
, size_t *outlen
)
4915 if (s
->clienthello
== NULL
|| out
== NULL
|| outlen
== NULL
)
4917 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4918 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4922 present
= OPENSSL_malloc(sizeof(*present
) * num
);
4923 if (present
== NULL
)
4925 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; i
++) {
4926 ext
= s
->clienthello
->pre_proc_exts
+ i
;
4928 if (ext
->received_order
>= num
)
4930 present
[ext
->received_order
] = ext
->type
;
4937 OPENSSL_free(present
);
4941 int SSL_client_hello_get0_ext(SSL
*s
, unsigned int type
, const unsigned char **out
,
4947 if (s
->clienthello
== NULL
)
4949 for (i
= 0; i
< s
->clienthello
->pre_proc_exts_len
; ++i
) {
4950 r
= s
->clienthello
->pre_proc_exts
+ i
;
4951 if (r
->present
&& r
->type
== type
) {
4953 *out
= PACKET_data(&r
->data
);
4955 *outlen
= PACKET_remaining(&r
->data
);
4962 int SSL_free_buffers(SSL
*ssl
)
4964 RECORD_LAYER
*rl
= &ssl
->rlayer
;
4966 if (RECORD_LAYER_read_pending(rl
) || RECORD_LAYER_write_pending(rl
))
4969 RECORD_LAYER_release(rl
);
4973 int SSL_alloc_buffers(SSL
*ssl
)
4975 return ssl3_setup_buffers(ssl
);
4978 void SSL_CTX_set_keylog_callback(SSL_CTX
*ctx
, SSL_CTX_keylog_cb_func cb
)
4980 ctx
->keylog_callback
= cb
;
4983 SSL_CTX_keylog_cb_func
SSL_CTX_get_keylog_callback(const SSL_CTX
*ctx
)
4985 return ctx
->keylog_callback
;
4988 static int nss_keylog_int(const char *prefix
,
4990 const uint8_t *parameter_1
,
4991 size_t parameter_1_len
,
4992 const uint8_t *parameter_2
,
4993 size_t parameter_2_len
)
4996 char *cursor
= NULL
;
5001 if (ssl
->ctx
->keylog_callback
== NULL
) return 1;
5004 * Our output buffer will contain the following strings, rendered with
5005 * space characters in between, terminated by a NULL character: first the
5006 * prefix, then the first parameter, then the second parameter. The
5007 * meaning of each parameter depends on the specific key material being
5008 * logged. Note that the first and second parameters are encoded in
5009 * hexadecimal, so we need a buffer that is twice their lengths.
5011 prefix_len
= strlen(prefix
);
5012 out_len
= prefix_len
+ (2*parameter_1_len
) + (2*parameter_2_len
) + 3;
5013 if ((out
= cursor
= OPENSSL_malloc(out_len
)) == NULL
) {
5014 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
, SSL_F_NSS_KEYLOG_INT
,
5015 ERR_R_MALLOC_FAILURE
);
5019 strcpy(cursor
, prefix
);
5020 cursor
+= prefix_len
;
5023 for (i
= 0; i
< parameter_1_len
; i
++) {
5024 sprintf(cursor
, "%02x", parameter_1
[i
]);
5029 for (i
= 0; i
< parameter_2_len
; i
++) {
5030 sprintf(cursor
, "%02x", parameter_2
[i
]);
5035 ssl
->ctx
->keylog_callback(ssl
, (const char *)out
);
5041 int ssl_log_rsa_client_key_exchange(SSL
*ssl
,
5042 const uint8_t *encrypted_premaster
,
5043 size_t encrypted_premaster_len
,
5044 const uint8_t *premaster
,
5045 size_t premaster_len
)
5047 if (encrypted_premaster_len
< 8) {
5048 SSLfatal(ssl
, SSL_AD_INTERNAL_ERROR
,
5049 SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE
, ERR_R_INTERNAL_ERROR
);
5053 /* We only want the first 8 bytes of the encrypted premaster as a tag. */
5054 return nss_keylog_int("RSA",
5056 encrypted_premaster
,
5062 int ssl_log_secret(SSL
*ssl
,
5064 const uint8_t *secret
,
5067 return nss_keylog_int(label
,
5069 ssl
->s3
->client_random
,
5075 #define SSLV2_CIPHER_LEN 3
5077 int ssl_cache_cipherlist(SSL
*s
, PACKET
*cipher_suites
, int sslv2format
)
5081 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5083 if (PACKET_remaining(cipher_suites
) == 0) {
5084 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_SSL_CACHE_CIPHERLIST
,
5085 SSL_R_NO_CIPHERS_SPECIFIED
);
5089 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5090 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5091 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5095 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5096 s
->s3
->tmp
.ciphers_raw
= NULL
;
5097 s
->s3
->tmp
.ciphers_rawlen
= 0;
5100 size_t numciphers
= PACKET_remaining(cipher_suites
) / n
;
5101 PACKET sslv2ciphers
= *cipher_suites
;
5102 unsigned int leadbyte
;
5106 * We store the raw ciphers list in SSLv3+ format so we need to do some
5107 * preprocessing to convert the list first. If there are any SSLv2 only
5108 * ciphersuites with a non-zero leading byte then we are going to
5109 * slightly over allocate because we won't store those. But that isn't a
5112 raw
= OPENSSL_malloc(numciphers
* TLS_CIPHER_LEN
);
5113 s
->s3
->tmp
.ciphers_raw
= raw
;
5115 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5116 ERR_R_MALLOC_FAILURE
);
5119 for (s
->s3
->tmp
.ciphers_rawlen
= 0;
5120 PACKET_remaining(&sslv2ciphers
) > 0;
5121 raw
+= TLS_CIPHER_LEN
) {
5122 if (!PACKET_get_1(&sslv2ciphers
, &leadbyte
)
5124 && !PACKET_copy_bytes(&sslv2ciphers
, raw
,
5127 && !PACKET_forward(&sslv2ciphers
, TLS_CIPHER_LEN
))) {
5128 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5130 OPENSSL_free(s
->s3
->tmp
.ciphers_raw
);
5131 s
->s3
->tmp
.ciphers_raw
= NULL
;
5132 s
->s3
->tmp
.ciphers_rawlen
= 0;
5136 s
->s3
->tmp
.ciphers_rawlen
+= TLS_CIPHER_LEN
;
5138 } else if (!PACKET_memdup(cipher_suites
, &s
->s3
->tmp
.ciphers_raw
,
5139 &s
->s3
->tmp
.ciphers_rawlen
)) {
5140 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_SSL_CACHE_CIPHERLIST
,
5141 ERR_R_INTERNAL_ERROR
);
5147 int SSL_bytes_to_cipher_list(SSL
*s
, const unsigned char *bytes
, size_t len
,
5148 int isv2format
, STACK_OF(SSL_CIPHER
) **sk
,
5149 STACK_OF(SSL_CIPHER
) **scsvs
)
5153 if (!PACKET_buf_init(&pkt
, bytes
, len
))
5155 return bytes_to_cipher_list(s
, &pkt
, sk
, scsvs
, isv2format
, 0);
5158 int bytes_to_cipher_list(SSL
*s
, PACKET
*cipher_suites
,
5159 STACK_OF(SSL_CIPHER
) **skp
,
5160 STACK_OF(SSL_CIPHER
) **scsvs_out
,
5161 int sslv2format
, int fatal
)
5163 const SSL_CIPHER
*c
;
5164 STACK_OF(SSL_CIPHER
) *sk
= NULL
;
5165 STACK_OF(SSL_CIPHER
) *scsvs
= NULL
;
5167 /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */
5168 unsigned char cipher
[SSLV2_CIPHER_LEN
];
5170 n
= sslv2format
? SSLV2_CIPHER_LEN
: TLS_CIPHER_LEN
;
5172 if (PACKET_remaining(cipher_suites
) == 0) {
5174 SSLfatal(s
, SSL_AD_ILLEGAL_PARAMETER
, SSL_F_BYTES_TO_CIPHER_LIST
,
5175 SSL_R_NO_CIPHERS_SPECIFIED
);
5177 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_NO_CIPHERS_SPECIFIED
);
5181 if (PACKET_remaining(cipher_suites
) % n
!= 0) {
5183 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5184 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5186 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
,
5187 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
5191 sk
= sk_SSL_CIPHER_new_null();
5192 scsvs
= sk_SSL_CIPHER_new_null();
5193 if (sk
== NULL
|| scsvs
== NULL
) {
5195 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5196 ERR_R_MALLOC_FAILURE
);
5198 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5202 while (PACKET_copy_bytes(cipher_suites
, cipher
, n
)) {
5204 * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the
5205 * first byte set to zero, while true SSLv2 ciphers have a non-zero
5206 * first byte. We don't support any true SSLv2 ciphers, so skip them.
5208 if (sslv2format
&& cipher
[0] != '\0')
5211 /* For SSLv2-compat, ignore leading 0-byte. */
5212 c
= ssl_get_cipher_by_char(s
, sslv2format
? &cipher
[1] : cipher
, 1);
5214 if ((c
->valid
&& !sk_SSL_CIPHER_push(sk
, c
)) ||
5215 (!c
->valid
&& !sk_SSL_CIPHER_push(scsvs
, c
))) {
5217 SSLfatal(s
, SSL_AD_INTERNAL_ERROR
,
5218 SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5220 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
5225 if (PACKET_remaining(cipher_suites
) > 0) {
5227 SSLfatal(s
, SSL_AD_DECODE_ERROR
, SSL_F_BYTES_TO_CIPHER_LIST
,
5230 SSLerr(SSL_F_BYTES_TO_CIPHER_LIST
, SSL_R_BAD_LENGTH
);
5237 sk_SSL_CIPHER_free(sk
);
5238 if (scsvs_out
!= NULL
)
5241 sk_SSL_CIPHER_free(scsvs
);
5244 sk_SSL_CIPHER_free(sk
);
5245 sk_SSL_CIPHER_free(scsvs
);
5249 int SSL_CTX_set_max_early_data(SSL_CTX
*ctx
, uint32_t max_early_data
)
5251 ctx
->max_early_data
= max_early_data
;
5256 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX
*ctx
)
5258 return ctx
->max_early_data
;
5261 int SSL_set_max_early_data(SSL
*s
, uint32_t max_early_data
)
5263 s
->max_early_data
= max_early_data
;
5268 uint32_t SSL_get_max_early_data(const SSL
*s
)
5270 return s
->max_early_data
;
5273 int ssl_randbytes(SSL
*s
, unsigned char *rnd
, size_t size
)
5275 if (s
->drbg
!= NULL
) {
5277 * Currently, it's the duty of the caller to serialize the generate
5278 * requests to the DRBG. So formally we have to check whether
5279 * s->drbg->lock != NULL and take the lock if this is the case.
5280 * However, this DRBG is unique to a given SSL object, and we already
5281 * require that SSL objects are only accessed by a single thread at
5282 * a given time. Also, SSL DRBGs have no child DRBG, so there is
5283 * no risk that this DRBG is accessed by a child DRBG in parallel
5284 * for reseeding. As such, we can rely on the application's
5285 * serialization of SSL accesses for the needed concurrency protection
5288 return RAND_DRBG_bytes(s
->drbg
, rnd
, size
);
5292 return RAND_bytes(rnd
, size
);
5295 __owur
unsigned int ssl_get_max_send_fragment(const SSL
*ssl
)
5297 /* Return any active Max Fragment Len extension */
5298 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
))
5299 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5301 /* return current SSL connection setting */
5302 return ssl
->max_send_fragment
;
5305 __owur
unsigned int ssl_get_split_send_fragment(const SSL
*ssl
)
5307 /* Return a value regarding an active Max Fragment Len extension */
5308 if (ssl
->session
!= NULL
&& USE_MAX_FRAGMENT_LENGTH_EXT(ssl
->session
)
5309 && ssl
->split_send_fragment
> GET_MAX_FRAGMENT_LENGTH(ssl
->session
))
5310 return GET_MAX_FRAGMENT_LENGTH(ssl
->session
);
5312 /* else limit |split_send_fragment| to current |max_send_fragment| */
5313 if (ssl
->split_send_fragment
> ssl
->max_send_fragment
)
5314 return ssl
->max_send_fragment
;
5316 /* return current SSL connection setting */
5317 return ssl
->split_send_fragment
;
5320 int SSL_stateless(SSL
*s
)
5324 /* Ensure there is no state left over from a previous invocation */
5330 s
->s3
->flags
|= TLS1_FLAGS_STATELESS
;
5331 ret
= SSL_accept(s
);
5332 s
->s3
->flags
&= ~TLS1_FLAGS_STATELESS
;
5334 if (ret
> 0 && s
->ext
.cookieok
)
5340 void SSL_force_post_handshake_auth(SSL
*ssl
)
5342 ssl
->pha_forced
= 1;
5345 int SSL_verify_client_post_handshake(SSL
*ssl
)
5347 if (!SSL_IS_TLS13(ssl
)) {
5348 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_WRONG_SSL_VERSION
);
5352 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_NOT_SERVER
);
5356 if (!SSL_is_init_finished(ssl
)) {
5357 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_STILL_IN_INIT
);
5361 switch (ssl
->post_handshake_auth
) {
5363 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_EXTENSION_NOT_RECEIVED
);
5366 case SSL_PHA_EXT_SENT
:
5367 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, ERR_R_INTERNAL_ERROR
);
5369 case SSL_PHA_EXT_RECEIVED
:
5371 case SSL_PHA_REQUEST_PENDING
:
5372 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_PENDING
);
5374 case SSL_PHA_REQUESTED
:
5375 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_REQUEST_SENT
);
5379 ssl
->post_handshake_auth
= SSL_PHA_REQUEST_PENDING
;
5381 /* checks verify_mode and algorithm_auth */
5382 if (!send_certificate_request(ssl
)) {
5383 ssl
->post_handshake_auth
= SSL_PHA_EXT_RECEIVED
; /* restore on error */
5384 SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE
, SSL_R_INVALID_CONFIG
);
5388 ossl_statem_set_in_init(ssl
, 1);